CN114563762B

CN114563762B - Automatic testing device for receiver of airborne very high frequency navigation system

Info

Publication number: CN114563762B
Application number: CN202210203521.1A
Authority: CN
Inventors: 刘贵行; 赵世伟; 官颂
Original assignee: Civil Aviation University of China
Current assignee: Tianjin Ruichi Aviation Technology Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2024-06-28
Anticipated expiration: 2042-03-03
Also published as: CN114563762A

Abstract

The invention discloses an automatic testing device of an onboard very high frequency navigation system receiver, which comprises an industrial personal computer, a PXI-1044 chassis, a control card, a 3801 switch card, a 3802 switch card, a 3803 switch card, an ARINC429 card, a 4461 audio card and a GPIB-PCI module, wherein the PXI-1044 chassis comprises a direct current programmable power supply and an alternating current programmable power supply, and comprises a digital multimeter, an aviation signal source and a resource interface box; an expansion connector is arranged on the front panel of the resource interface box, and a RIB board consisting of eight connectors and twelve relays is arranged in the resource interface box; compared with manual testing equipment, the time consumption of the device is shortened by more than 75%; compared with imported test products, the cost is reduced by more than 80 percent; the device fills the blank of the domestic related technology to a certain extent; the method can be used for first-line production, teaching and training, and has popularization value in maintenance training and teaching industry.

Description

Automatic testing device for receiver of airborne very high frequency navigation system

Technical Field

The invention relates to a test technology of an onboard electronic device, in particular to an automatic test device of an onboard very high frequency navigation system receiver, which is used for automatically testing the onboard very high frequency navigation system receiver and can also be used for civil aviation maintenance and machine work teaching.

Background

With the continuous development of aviation technology, the proportion of an airborne electronic system on a civil aircraft is also continuously increased, and according to international standards, the airborne electronic system can be divided into an automatic flight system, a communication system, a display and recording system and a navigation system. The main task of the navigation system is to guide the aircraft safely to a specified location at a specified time with a specified accuracy in an efficient way under given conditions. The most widely used at present is radio navigation, the main principle of which is to use measurement of radio parameters to calculate flight parameters of an aircraft.

The basic principle of the current test of the airborne electronic equipment is as follows: at the factory of the onboard electronic equipment, the equipment manufacturer will provide a corresponding parts maintenance manual (hereinafter CMM manual) in which the test methods and test procedures are described in detail, all of which must strictly follow the CMM manual. The test of the receiver of the airborne navigation system generally adopts a signal excitation test method, namely, an excitation signal is generated by a signal source to simulate a navigation signal emitted by a ground navigation platform, the device to be tested is resolved into corresponding navigation parameters after receiving the excitation signal, and the resolved navigation parameters are compared with the excitation signal generated by the signal source to judge whether the device has faults and the fault range.

The existing equipment for testing the onboard electronic system mainly depends on import, is expensive in selling price, takes ATEC5/6/7 series with higher market share as an example, and is used for testing the onboard very high frequency navigation system, and the cost is more than 700 ten thousand yuan. Therefore, independent of import, there is an urgent need to develop an automatic testing device for an onboard very high frequency navigation system receiver to meet domestic market demands.

Disclosure of Invention

In view of the problems existing in the prior art, the invention develops an automatic test device for the receiver of the onboard very high frequency navigation system, which takes an aviation signal source as an excitation signal, designs and develops related peripheral circuits at the same time, and automatically tests the receiver of the onboard very high frequency navigation system according to test standards and test programs provided by equipment suppliers.

The technical scheme adopted by the invention is as follows: the automatic testing device of the receiver of the onboard very high frequency navigation system is arranged in a cabinet and comprises an industrial personal computer consisting of an NI8360B control card, a PXI-1044 cabinet consisting of an NI8360A control card, a 3801 switch card, a 3802 switch card, a 3803 switch card, an ARINC429 card, a 4461 audio card and a GPIB-PCI module, and comprises a direct current programmable power supply and an alternating current programmable power supply, and comprises a digital multimeter, an aviation signal source and a resource interface box; the industrial personal computer is connected with the direct current programmable power supply and the alternating current programmable power supply respectively and the human-computer interface; the NI8360B control card is connected with the NI8360A control card; the GPIB-PCI module is respectively connected with the digital multimeter and the aviation signal source; the NI8360A control card, the 3801 switch card, the 3802 switch card, the 3803 switch card, the ARINC429 card, the 4461 audio card and the digital multimeter are respectively connected with the resource interface box; the aviation signal source is connected with the to-be-detected piece; the direct-current programmable power supply and the alternating-current programmable power supply are respectively connected with the resource interface box; the resource interface box is connected with the to-be-tested piece through the adapter;

The front panel of the resource interface box is provided with a status indicator lamp, an expansion connector, an ARINC429 channel and a grounding channel; the expansion connectors are two, namely a connector iCon and a connector iCon2, wherein the connector iCon is free for subsequent expansion; four ARINC429 channels are respectively a CH1 channel, a CH2 channel, a CH3 channel and a CH4 channel.

The resource interface box is internally provided with a RIB board consisting of a JP-SW connector, a JB-SW connector, a WJ-429 connector, a KG-DY connector, a VPC-429 connector, a VPC-115 connector, a VPC-DY connector, a SB-115 connector and twelve relays.

The industrial personal computer is connected to the connector iCon1 through two serial ports respectively; the two serial ports are respectively: the digital multimeter, 3803 switch card, 4461 audio card, 3801 switch card, ARINC429 card and 3802 switch card are respectively connected to the connector iCon; wherein the 4461 audio card is connected with the 3801 switch card; the JP-SW connector on the RIB board is connected to the 3801 switch card and the ARINC429 card; a JB-SW connector on the RIB board is connected to the 3802 switch card; the WJ-429 connector on the RIB board connects to ARINC429 channel on the front panel of the resource interface box; the KG-DY connector and the SB-115 connector on the RIB board are respectively connected to the direct current programmable power supply and the alternating current programmable power supply; the VPC-429 connector, the VPC-115 connector and the VPC-DY connector on the RIB board are respectively connected to the connector iCon; the connector iCon on the front panel is connected with the adapter.

The iCon connector is totally divided into 168 pins, the 168 pins are divided into two areas P1A and P1B, each area is composed of 6 columns, 14 rows of each column and 84 pins, wherein 6 columns in the P1A area are respectively: columns P1A-a, P1A-B, P1A-C, P1A-D, P1A-E, P1A-F; the 6 columns in the P1B region are: columns P1B-A, P1B-B, P1B-C, P1B-D, P1B-E, P1B-F.

The 84 pins in the iCon connector P1A area aggregate the pin connection relationships according to the 6-column 14-row order as follows:

Line 1: the P1A-1A pin of the P1A-a column is connected with the No. 16 pin of the VPC-429 connector; the pins P1A-1B of the P1A-B columns are connected with the pin 4 of the VPC-429 connector; the pins P1A-1C of the P1A-C columns are connected with the pin 17 of the VPC-429 connector; the pins P1A-1D of the P1A-D columns are connected with the pin 5 of the VPC-429 connector; the pins P1A-1E of the P1A-E columns are connected with the pin 14 of the VPC-429 connector; the P1A-1F pins of the P1A-F columns connect to pin 2 of the VPC-429 connector.

Line 2: the pins P1A-2A of the columns P1A-a are connected with the pin 15 of the VPC-429 connector; the pins P1A-2B of the P1A-B columns are connected with the pin 3 of the VPC-429 connector; the pins P1A-2C of the P1A-C columns are connected with the pin 25 of the VPC-429 connector; the P1A-2D pins of the P1A-D columns are connected with the No. 13 pin of the VPC-429 connector; the pins P1A-2E of the P1A-E columns are connected with the pin 24 of the VPC-429 connector; the P1A-2F pins of the P1A-F columns connect to pin 12 of the VPC-429 connector.

Line 3: the pins P1A-3A of the columns P1A-a are connected with the pin 23 of the VPC-429 connector; the pins P1A-3B of the P1A-B columns are connected with the pin 11 of the VPC-429 connector; the pins P1A-3C of the P1A-C columns are connected with the pin 22 of the VPC-429 connector; the P1A-3D pins of the P1A-D columns are connected with the No. 10 pin of the VPC-429 connector; P1A-3E pins of the P1A-E columns are connected with a No. 2 pin of a serial port RS232_2 of the industrial personal computer; the pins P1A-3F of the P1A-F columns are connected with the pin No. 2 of the serial port RS232_1 of the industrial personal computer.

Line 4: the pins P1A-4A of the columns P1A-a are connected with the pin 8 of the VPC-429 connector; the pins P1A-4B of the P1A-B columns are connected with the pin 21 of the VPC-429 connector; P1A-4C pins of the P1A-C columns are connected with pin 1 of 4461 audio card channel AI 0; the P1A-4D pins of the P1A-D columns connect to pin 2 of 4461 Audio card channel AI 0; P1A-4E pins of the P1A-E columns are connected with a No. 3 pin of a serial port RS232_2 of the industrial personal computer; the pins P1A-4F of the P1A-F columns are connected with the pin No. 3 of the serial port RS232_1 of the industrial personal computer.

Line 5: the P1A-5A pins of the P1A-a columns are connected with the No. 1 pin of the 3802 switch card connector; the pins P1A-5B of the P1A-B columns are connected with the pin 6 of the 3802 switch card connector; the pins P1A-5C of the P1A-C columns are connected with the pin 11 of the 3802 switch card connector; the P1A-5D pins of the P1A-D columns connect 3802 to the number 16 pin of the switch card connector; the P1A-5E pins of the P1A-E columns are connected with the No. 22 pin of the 3802 switch card connector; the pins P1A-5F of the P1A-F columns are connected with the pin 1 of the serial port RS232_1 of the industrial personal computer.

Line 6: the P1A-6A pins of the P1A-a columns are connected with the No. 2 pin of the 3802 switch card connector; the pins P1A-6B of the P1A-B columns are connected with the pin 7 of the 3802 switch card connector; the pins P1A-6C of the P1A-C columns are connected with the pin 12 of the 3802 switch card connector; the pins P1A-6D of the P1A-D columns connect 3802 to pin 17 of the switch card connector; the pins P1A-6E of the P1A-E columns are connected with the pin 23 of the 3802 switch card connector; P1A-6F pins of the P1A-F columns are connected with the No. 4 pin of the serial port RS232_1 of the industrial personal computer.

Line 7: the P1A-7A pins of the P1A-a columns are connected with the No. 3 pin of the 3802 switch card connector; the pins P1A-7B of the P1A-B columns are connected with the pin 8 of the 3802 switch card connector; P1A-7C pins of the P1A-C columns are connected with the No. 13 pin of the 3802 switch card connector; the P1A-7D pins of the P1A-D columns connect 3802 to the 18 pin of the switch card connector; the pins P1A-7E of the P1A-E columns are connected with the pin 24 of the 3802 switch card connector; P1A-7F pins of the P1A-F columns are connected with a No. 6 pin of the serial port RS232_1 of the industrial personal computer.

Line 8: the P1A-8A pins of the P1A-a columns are connected with the No. 4 pin of the 3802 switch card connector; the pins P1A-8B of the P1A-B columns are connected with the pin 9 of the 3802 switch card connector; the pins P1A-8C of the P1A-C columns are connected with the pin No. 14 of the 3802 switch card connector; the P1A-8D pins of the P1A-D columns connect 3802 to pin 19 of the switch card connector; the pins P1A-8E of the P1A-E columns are connected with the pin No. 25 of the 3802 switch card connector; the pins P1A-8F of the P1A-F columns are connected with the pin No. 7 of the serial port RS232_1 of the industrial personal computer.

Line 9: the P1A-9A pins of the P1A-a columns are connected with the No. 5 pin of the 3802 switch card connector; the pins P1A-9B of the P1A-B columns are connected with the pin 10 of the 3802 switch card connector; the pins P1A-9C of the P1A-C columns are connected with the pin 15 of the 3802 switch card connector; the pins P1A-9D of the P1A-D columns are connected with the pin No. 20 of the 3802 switch card connector; the pins P1A-9E of the P1A-E columns are connected with the pin 26 of the 3802 switch card connector; P1A-9F pins of the P1A-F columns are connected with the No. 8 pin of the serial port RS232_1 of the industrial personal computer.

Line 10: the P1A-10A pins of the P1A-a columns are connected with the No. 27 pin of the 3802 switch card connector; the pins P1A-10B of the P1A-B columns are connected with the pin 32 of the 3802 switch card connector; the pins P1A-10C of the P1A-C columns are connected with the pin 37 of the 3802 switch card connector; the P1A-10D pins of the P1A-D columns are connected to digital ground; the pins P1A-10E of the columns P1A-E are connected with the pin 1 of the digital multimeter; the pins P1A-10F of the columns P1A-F are connected with the pin No. 2 of the digital multimeter.

Line 11: the P1A-11A pins of the P1A-a columns are connected with the No. 28 pin of the 3802 switch card connector; the pins P1A-11B of the P1A-B columns are connected with the pin 33 of the 3802 switch card connector; the pins P1A-11C of the P1A-C columns are connected with the pin 38 of the 3802 switch card connector; suspending pins P1A-11D of the columns P1A-D for standby; the pins P1A-11E of the columns P1A-E are connected with the pin 3 of the digital multimeter; the pins P1A-11F of the columns P1A-F are connected with the pin 4 of the digital multimeter.

Line 12: the P1A-12A pins of the P1A-a columns connect 3802 to pin 29 of the switch card connector; the pins P1A-12B of the columns P1A-B are connected with the pins 34 of the 3802 switch card connector; the pins P1A-12C of the P1A-C columns are connected with the pin 39 of the 3802 switch card connector; suspending pins P1A-12D of the columns P1A-D for standby; suspending pins P1A-12E of the columns P1A-E for standby; pins P1A-12F of the columns P1A-F are suspended for standby.

Line 13: the P1A-13A pins of the P1A-a columns are connected with the No. 30 pin of the 3802 switch card connector; the pins P1A-13B of the P1A-B columns are connected with the pin 35 of the 3802 switch card connector; the pins P1A-13C of the P1A-C columns are connected with the pin 40 of the 3802 switch card connector; suspending pins P1A-13D of the columns P1A-D for standby; suspending pins P1A-13E of the columns P1A-E for standby; the P1A-13F pin connections iCon of the P1A-F columns connect the connector states to detect high ends.

Line 14: the P1A-14A pins of the P1A-a columns are connected with the No. 31 pin 3802 switch card connector; the pins P1A-14B of the P1A-B columns are connected with the pin 36 of the 3802 switch card connector; the pins P1A-14C of the P1A-C columns are connected with the pin 41 of the 3802 switch card connector; suspending pins P1A-14D of the columns P1A-D for standby; suspending pins P1A-14E of the columns P1A-E for standby; the P1A-14F pins of the P1A-F columns are simultaneously connected iCon to the connection status detection low-side and 19 pins of the VPC-429 connector.

The 84 pins in the iCon connector P1B area aggregate the pin connection relationships according to the 6-column 14-row order as follows:

Line 1: the P1B-1A pin of the P1B-A column is connected with the No. 1 pin of the 3803 switch card connector; the P1B-1B pin of the P1B-B column is connected with the No. 20 pin of the 3803 switch card connector; the P1B-1C pin of the P1B-C column is connected with the No. 2 pin of the 3803 switch card connector; the P1B-1D pins of the P1B-D columns are connected with the No. 21 pin of the 3803 switch card connector; the P1B-1E pins of the P1B-E columns are connected with the No. 3 pin of the 3803 switch card connector; the P1B-1F pins of the P1B-F columns connect 3803 to pin 22 of the switch card connector.

Line 2: the P1B-2A pin of the P1B-A column is connected with the No. 4 pin of the 3803 switch card connector; the P1B-2B pins of the P1B-B columns are connected with the No. 23 pin of the 3803 switch card connector; the P1B-2C pins of the P1B-C columns are connected with the No. 5 pin of the 3803 switch card connector; the P1B-2D pins of the P1B-D columns are connected with the No. 24 pin of the 3803 switch card connector; the P1B-2E pins of the P1B-E columns are connected with the No. 6 pin of the 3803 switch card connector; the P1B-2F pins of the P1B-F columns connect 3803 to pin 25 of the switch card connector.

Line 3: the pin P1B-3A of the P1B-A column is connected with the pin 7 of the 3803 switch card connector; the P1B-3B pins of the P1B-B columns are connected with the No. 26 pin of the 3803 switch card connector; the P1B-3C pins of the P1B-C columns are connected with the No. 8 pin of the 3803 switch card connector; the P1B-3D pins of the P1B-D columns connect 3803 the No. 27 pin of the switch card connector; the pins P1B-3E of the P1B-E columns are connected with the pin 10 of the 3803 switch card connector; the P1B-3F pins of the P1B-F columns connect 3803 pin 29 of the switch card connector.

Line 4: the P1B-4A pin of the P1B-A column is connected with the No. 11 pin of the 3803 switch card connector; the pins P1B-4B of the P1B-B columns are connected with the pin No. 30 of the 3803 switch card connector; the P1B-4C pins of the P1B-C columns are connected with the No. 12 pin of the 3803 switch card connector; the P1B-4D pins of the P1B-D columns are connected with the No. 31 pin of the 3803 switch card connector; the pins P1B-4E of the P1B-E columns are connected with the pin 13 of the 3803 switch card connector; the P1B-4F pins of the P1B-F columns connect 3803 to pin 32 of the switch card connector.

Line 5: the pin P1B-5A of the P1B-A column is connected with the pin No. 14 of the 3803 switch card connector; the pins P1B-5B of the P1B-B columns are connected with the pin 33 of the 3803 switch card connector; the pins P1B-5C of the P1B-C columns are connected with the pin 15 of the 3803 switch card connector; the P1B-5D pins of the P1B-D columns are connected with the 34-number pin of the 3803 switch card connector; the pins P1B-5E of the P1B-E columns are connected with the pin 16 of the 3803 switch card connector; the P1B-5F pins of the P1B-F columns connect 3803 to pin 35 of the switch card connector.

Line 6: the pin P1B-6A of the P1B-A column is connected with the pin 17 of the 3803 switch card connector; the P1B-6B pins of the P1B-B columns are connected with the 36-number pin of the 3803 switch card connector; the P1B-6C pins of the P1B-C columns are connected with the No. 9 pin of the 3803 switch card connector; the P1B-6D pins of the P1B-D columns are connected with the No. 28 pin of the 3803 switch card connector; the P1B-6E pins of the P1B-E columns are connected with the 18-number pin of the 3803 switch card connector; the P1B-6F pins of the P1B-F columns connect 3803 to pin 37 of the switch card connector.

Line 7: the P1B-7A pin of the P1B-A column is connected with the 34-number pin of the 3801 switch card connector; the pins P1B-7B of the P1B-B columns are connected with the pin 33 of the 3801 switch card connector; the P1B-7C pins of the P1B-C columns are connected with the 32-number pin of the 3801 switch card connector; the P1B-7D pins of the P1B-D columns connect 3801 the number 31 pin of the switch card connector; the pins P1B-7E of the P1B-E columns are connected with the pin No. 30 of the 3801 switch card connector; the P1B-7F pins of the P1B-F columns connect 3801 to pin 29 of the switch card connector.

Line 8: the P1B-8A pin of the P1B-A column is connected with the No. 28 pin of the 3801 switch card connector; the P1B-8B pins of the P1B-B columns are connected with the No. 27 pin of the 3801 switch card connector; the P1B-8C pins of the P1B-C columns are connected with the No. 26 pin of the 3801 switch card connector; the P1B-8D pins of the P1B-D columns connect 3801 the 25-pin of the switch card connector; the P1B-8E pins of the P1B-E columns are connected with the No. 24 pin of the 3801 switch card connector; the P1B-8F pins of the P1B-F columns connect 3801 to pin 23 of the switch card connector.

Line 9: the P1B-9A pin of the P1B-A column is connected with the No. 22 pin of the 3801 switch card connector; the pins P1B-9B of the P1B-B columns are connected with the pin 21 of the 3801 switch card connector; the pins P1B-9C of the P1B-C columns are connected with the pin No. 20 of the 3801 switch card connector; the P1B-9D pins of the P1B-D columns connect 3801 the 19 th pin of the switch card connector; the P1B-9E pins of the P1B-E columns are connected with the 18-number pin of the 3801 switch card connector; the P1B-9F pins of the P1B-F columns connect 3801 to pin 17 of the switch card connector.

Line 10: the P1B-10A pin of the P1B-A column is connected with the No. 16 pin of the 3801 switch card connector; the P1B-10B pins of the P1B-B columns are connected with the No. 15 pin 3801 switch card connector; the P1B-10C pins of the P1B-C columns are connected with the No. 14 pin of the 3801 switch card connector; the P1B-10D pins of the P1B-D columns connect 3801 the No. 13 pin of the switch card connector; the pins P1B-10E of the P1B-E columns are connected with the pin 12 of the 3801 switch card connector; the P1B-10F pins of the P1B-F columns connect 3801 to pin 11 of the switch card connector.

Line 11: the pin P1B-11A of the P1B-A column is connected with the pin No. 10 of the 3801 switch card connector; the pins P1B-11B of the P1B-B columns are connected with the pin 9 of the 3801 switch card connector; the pins P1B-11C of the P1B-C columns are connected with the pin 8 of the 3801 switch card connector; the pins P1B-11D of the P1B-D columns connect 3801 to pin 7 of the switch card connector; the pins P1B-11E of the P1B-E columns are connected with the pin No. 6 of the 3801 switch card connector; the P1B-11F pins of the P1B-F columns connect 3801 to pin 5 of the switch card connector.

Line 12: the P1B-12A pin of the P1B-A column is connected with the No.4 pin of the 3801 switch card connector; the P1B-12B pins of the P1B-B columns are connected with the No. 3 pin of the 3801 switch card connector; the pins P1B-12C of the columns P1B-C are connected with the chassis ground; the pins P1B-12D of the P1B-D columns are connected with the pin 7 of the VPC-DY connector; suspending pins P1B-12E of the columns P1B-E for standby; the pins P1B-12F of the P1B-F columns are suspended for standby.

Line 13: the P1B-13A pin of the P1B-A column is connected with the No.2 pin of the VPC-115 connector; the pins P1B-13B of the P1B-B columns are connected with the pin No.2 of the VPC-115 connector; suspending pins P1B-13C of the columns P1B-C for standby; the pins P1B-13D of the P1B-D columns are connected with the pin 1 of the VPC-DY connector; the pins P1B-13E of the P1B-E columns are connected with the pin 3 of the VPC-DY connector; the pins P1B-13F of the P1B-F columns connect to pin 4 of the VPC-DY connector.

Line 14: the pin P1B-14A of the P1B-A column is connected with the pin 1 of the VPC-115 connector; the pins P1B-14B of the P1B-B columns are connected with the pin 1 of the VPC-115 connector; suspending pins P1B-14C of the columns P1B-C for standby; the pins P1B-14D of the P1B-D columns are connected with the pin No. 2 of the VPC-DY connector; suspending pins P1B-14E of the columns P1B-E for standby; the pins P1B-14F of the P1B-F columns connect pins 8 of the VPC-DY connector.

The WJ-429 connector and front panel ARINC429 channel connection relationship is summarized as follows:

The CH1 channel TX_A pin of the front panel ARINC429 is connected with the No. 16 pin of the WJ-429 connector; the CH1 channel TX_B pin of the front panel ARINC429 is connected with the No. 4 pin of the WJ-429 connector; the CH2 channel TX_A pin of the front panel ARINC429 is connected with the 17-pin of the WJ-429 connector; the CH2 channel TX_B pin of the front panel ARINC429 is connected with the No. 5 pin of the WJ-429 connector; the CH3 channel TX_A pin of the front panel ARINC429 is connected with the No. 14 pin of the WJ-429 connector; the CH3 channel TX_B pin of the front panel ARINC429 is connected with the No. 2 pin of the WJ-429 connector; the CH4 channel TX_A pin of the front panel ARINC429 is connected with the No. 15 pin of the WJ-429 connector; the CH4 channel TX_B pin of the front panel ARINC429 is connected with the No. 3 pin of the WJ-429 connector; the CH1 channel RX_A pin of the front panel ARINC429 is connected with the No. 25 pin of the WJ-429 connector; the CH1 channel RX_B pin of the front panel ARINC429 is connected with the No. 13 pin of the WJ-429 connector; the CH2 channel RX_A pin of the front panel ARINC429 is connected with the No. 24 pin of the WJ-429 connector; the CH2 channel RX_B pin of the front panel ARINC429 is connected with the No. 12 pin of the WJ-429 connector; the CH3 channel RX_A pin of the front panel ARINC429 is connected with the No. 23 pin of the WJ-429 connector; the CH3 channel RX_B pin of the front panel ARINC429 is connected with the No. 11 pin of the WJ-429 connector; the CH4 channel RX_A pin of the front panel ARINC429 is connected with the No. 22 pin of the WJ-429 connector; the CH4 channel RX_B pin of the front panel ARINC429 connects to pin 10 of the WJ-429 connector.

The connection relationship between the ARINC429 card connector and the JP-SW connector is summarized as follows:

the No. 1 pin of the ARINC429 card connector is a ground wire; the ARINC429 card connector No. 2 pin is connected with the JP-SW connector No. 29 pin; the ARINC429 card connector No. 3 pin is connected with the JP-SW connector No. 25 pin; the ARINC429 card connector No. 4 pin is connected with the JP-SW connector No. 21 pin; the ARINC429 card connector No. 5 pin is connected with the JP-SW connector No. 17 pin; the ARINC429 card connector No. 6 pin is connected with the JP-SW connector No. 9 pin; the ARINC429 card connector No. 7 pin is connected with the JP-SW connector No. 13 pin; the ARINC429 card connector No. 8 pin is connected with the JP-SW connector No. 1 pin; the ARINC429 card connector No. 9 pin is connected with the JP-SW connector No. 5 pin; the ARINC429 card connector 14 pin is connected with the JP-SW connector 31 pin; the ARINC429 card connector No. 15 pin is connected with the JP-SW connector No. 27 pin; the ARINC429 card connector 16 number pin is connected with the JP-SW connector 23 number pin; the ARINC429 card connector 17 number pin is connected with the JP-SW connector 19 number pin; the ARINC429 card connector 18 pin is connected with the JP-SW connector 11 pin; the 19 th pin of the ARINC429 card connector is connected with the 15 th pin of the JP-SW connector; the ARINC429 card connector 20 pin is connected with the JP-SW connector 3 pin; the ARINC429 card connector pin 21 is connected with the JP-SW connector pin 7.

The connection relation between the 3801 switch card connector and the 4461 audio card is summarized as follows:

3801 switch card connector 37 pin connects 4461 pin 2 of audio card channel AO 1; 3801 switch card connector 38 pin connects 4461 pin 2 of audio card channel AI 1; 3801 switch card connector 39 pin connects 4461 pin 1 of audio card channel AO 1; 3801 switch card connector pin 40 connects pin 1 of 4461 audio card channel AI 1; 3801 switch card connector 41 pin connects 4461 pin 2 of audio card channel AO 0; 3801 switch card connector pin 42 connects pin 2 of 4461 audio card channel AI 0; 3801 switch card connector 43 pin connects 4461 pin 1 of audio card channel AO 0; 3801 switch card connector 44 pin connects 4461 pin 1 of audio card path AI 0.

The connection relation between the 3801 switch card connector and the JP-SW connector is summarized as follows:

3801 switch card connector pin 45 connects JP-SW connector pin 44; 3801 switch card connector pin 46 connects JP-SW connector pin 4; 3801 switch card connector 47 pin connects JP-SW connector 50 pin; 3801 switch card connector 48 pin connects JP-SW connector 6 pin; 3801 switch card connector pin 49 connects JP-SW connector pin 46; 3801 switch card connector No. 50 pin connects JP-SW connector No. 8 pin; 3801 switch card connector pin 51 connects JP-SW connector pin 48; 3801 switch card connector pin 52 connects JP-SW connector pin 10; 3801 switch card connector pin 53 connects JP-SW connector pin 36; 3801 switch card connector pin 54 connects JP-SW connector pin 12; 3801 switch card connector pin 55 connects JP-SW connector pin 38; 3801 switch card connector pin 56 connects JP-SW connector pin 14; 3801 switch card connector 57 pin connects JP-SW connector 40 pin; 3801 switch card connector 58 pin connects JP-SW connector 16 pin; 3801 switch card connector pin 59 connects JP-SW connector pin 42; 3801 switch card connector 60 pin connects JP-SW connector 18 pin; 3801 switch card connector 61 pin connects JP-SW connector 30 pin; 3801 switch card connector pin 62 connects JP-SW connector pin 20; 3801 switch card connector No. 63 pin connects JP-SW connector No. 28 pin; 3801 switch card connector 64 pin connects JP-SW connector 22 pin; 3801 switch card connector pin 65 connects JP-SW connector pin 34; 3801 switch card connector 66 pin connects JP-SW connector 24 pin; 3801 switch card connector 67 pin connects JP-SW connector 32 pin; 3801 switch card connector pin 68 connects JP-SW connector pin 26; 3801 switch card connector pin 56 connects JP-SW connector pin 14; 3801 switch card connector 57 pin connects JP-SW connector 40 pin; 3801 switch card connector 58 pin connects JP-SW connector 16 pin; 3801 switch card connector pin 59 connects JP-SW connector pin 42; 3801 switch card connector 60 pin connects JP-SW connector 18 pin; 3801 switch card connector 61 pin connects JP-SW connector 30 pin; 3801 switch card connector pin 62 connects JP-SW connector pin 20; 3801 switch card connector No. 63 pin connects JP-SW connector No. 28 pin; 3801 switch card connector 64 pin connects JP-SW connector 22 pin; 3801 switch card connector pin 65 connects JP-SW connector pin 34; 3801 switch card connector 66 pin connects JP-SW connector 24 pin; 3801 switch card connector 67 pin connects JP-SW connector 32 pin; 3801 switch card connector pin 68 connects JP-SW connector pin 26.

The connection relation between the JB-SW connector and the 3802 switch card connector is summarized as follows:

The JB-SW connector No. 1 pin is connected with the 3802 switch card connector No. 43 pin and the 4461 audio card channel AI1 No. 1 pin simultaneously; JB-SW connector No. 2 pin connection 3802 switch card connector No. 44 pin; JB-SW connector No. 3 pin connection 3802 switch card connector No. 45 pin; JB-SW connector No. 4 pin connection 3802 switch card connector No. 46 pin; JB-SW connector No. 5 pin connection 3802 switch card connector No. 47 pin; the JB-SW connector No. 6 pin is connected with 3802 switch card connector No. 48 pin; JB-SW connector No. 7 pin connection 3802 switch card connector No. 49 pin; the JB-SW connector No. 8 pin is connected with 3802 switch card connector No. 50 pin; JB-SW connector No. 9 pin connection 3802 switch card connector No. 51 pin; JB-SW connector No. 10 pin connection 3802 switch card connector No. 52 pin; the JB-SW connector pin 15 connects pin 4461 to pin 2 of the audio card channel AI 1.

Twelve relays K1 to K12 are arranged on the RIB board, and the connection relation of the twelve relays is summarized as follows:

The pins 1 of the relays K1 to K8 are all connected to the pin 8 of the KG-DY connector; the No. 3 pins of the relays K1 to K8 are respectively connected to the No. 16 pin, the No. 25 pin, the No. 17 pin, the No. 24 pin, the No. 14 pin, the No. 23 pin, the No. 15 pin and the No. 22 pin of the WJ-429 connector; the No. 4 pins of the relays K1 to K8 are respectively connected to the No. 16 pin, the No. 25 pin, the No. 17 pin, the No. 24 pin, the No. 14 pin, the No. 23 pin, the No. 15 pin and the No. 22 pin of the VPC-429 connector; the No. 5 pins of the relays K1 to K8 are respectively connected to the No. 9 pin, the No. 29 pin, the No. 13 pin, the No. 25 pin, the No. 1 pin, the No. 21 pin, the No. 5 pin and the No. 17 pin of the JP-SW connector; the 8-numbered pins of the relays K1 to K8 are respectively connected to the 11-numbered pin, the 31-numbered pin, the 15-numbered pin, the 27-numbered pin, the 3-numbered pin, the 23-numbered pin, the 7-numbered pin and the 19-numbered pin of the JP-SW connector; the No. 9 pins of the relays K1 to K8 are respectively connected to the No. 4 pin, the No. 13 pin, the No. 5 pin, the No. 12 pin, the No. 2 pin, the No. 11 pin, the No. 3 pin and the No. 10 pin of the VPC-429 connector; the No. 10 pins of the relays K1 to K8 are respectively connected to the No. 4 pin, the No. 13 pin, the No. 5 pin, the No. 12 pin, the No. 2 pin, the No. 11 pin, the No. 3 pin and the No. 10 pin of the WJ-429 connector; the 12-numbered pins of the relays K1 to K8 are connected to the 32-numbered pin, the 42-numbered pin, the 34-numbered pin, the 40-numbered pin, the 28-numbered pin, the 38-numbered pin, the 30-numbered pin, and the 36-numbered pin of the JP-SW connector, respectively.

The No. 4 pin, no. 6 pin, no. 8 pin, no. 10 pin, no. 12 pin, no. 14 pin, no. 16 pin, no. 18 pin, no. 20 pin, no. 22 pin, no. 24 pin, no. 26 pin of the JP-SW connector are all connected to the No. 19 pin of the VPC-429 connector, wherein the No. 26 pin, no. 18 pin, no. 24 pin, no. 16 pin, no. 22 pin, no. 14 pin, no. 20 pin, no. 12 pin of the JP-SW connector form single pole double throw switches with the No. 12 pins of the relays K1 to K8 respectively through 3801 switch cards.

The pins 1 of the relays K9 to K12 are all connected to the pin 8 of the KG-DY connector; the No. 4 pin and the No. 9 pin of the relay K9 are respectively connected to the No. 4 pin and the No. 3 pin of the KG-DY connector; the No. 5 pin and the No. 8 pin of the relay K9 are respectively connected to the No. 4 pin and the No. 3 pin of the VPC-DY connector, and then are connected with the P1B-13E pin and the P1B-13F pin of the iCon connector; the 3-pin and the 6-pin of the relay K10 are respectively connected to the 1-pin and the 2-pin of the KG-DY connector, wherein the 1-pin and the 6-pin of the KG-DY connector are in short circuit, and the 2-pin and the 7-pin are in short circuit; the pin 4 and the pin 5 of the relay K10 are respectively connected to the pin 1 and the pin 2 of the VPC-DY connector, and then are connected with the pin P1B-13A and the pin P1B-14A of the iCon connector; the No. 3 pin and the No. 6 pin of the relay K11 are respectively connected to the No. 2 pin and the No. 1 pin of the SB-115 connector; the pin 4 and the pin 5 of the relay K11 are respectively connected to the pin 2 and the pin 1 of the VPC-115 connector, and then are connected with the pin P1B-13B and the pin P1B-14B of the iCon1 connector; the No. 4 pin and the No. 9 pin of the relay K12 are respectively connected with the No. 9 pin and the No. 5 pin of the KG-DY connector; the No. 5 pin and the No. 8 pin of the relay K12 are respectively connected to the No. 7 pin and the No. 8 pin of the VPC-DY connector, and then are connected with the P1B-13D pin and the P1B-14D pin of the iCon connector; the 12-number pins of the relays K9 to K12 are respectively connected to the 48-number pin, the 46-number pin, the 44-number pin and the 50-number pin of the JP-SW connector; the No. 10 pin, the No. 8 pin, the No. 4 pin and the No. 6 pin of the JP-SW connector respectively form a single-pole double-throw switch with the No. 12 pins of the relays K9 and K12 through 3801 switch cards.

The invention has the advantages and the beneficial effects that:

1. By adopting a full-automatic test process, a tester only needs to set test parameters before the test starts, and then the tester does not need to operate, the device automatically completes all test items and outputs test results, and the time consumption for completing all test items is shortened by more than 75% compared with that of manual test equipment according to statistics.

2. The main components of the device can be purchased in the market of China, the cost is below 100 ten thousand yuan, and the cost is further reduced after batch production. Compared with imported test products, the cost is reduced by more than 80%, and the method is convenient to popularize in aviation maintenance enterprises.

3. The research and development function of the device can fill the blank of the domestic related technology to a certain extent, and domestic independent intellectual property rights are realized.

4. The device can be used for teaching and training, related equipment in China is used for production and use of maintenance enterprises at present, the device can be used for first-line production, teaching and training in related fields, and the device has popularization value in maintenance and training and teaching industries.

Drawings

FIG. 1 is a block diagram of a hardware connection of the present invention;

FIG. 2 is a layout view of a front panel of the resource interface box of FIG. 1;

FIG. 3 is a circuit connection block diagram of the resource interface box of FIG. 1;

FIG. 4 is a circuit diagram of the area P1A of the iCon1 connector of FIG. 1;

FIG. 5 is a circuit diagram of the iCon A connector P1B region of FIG. 1;

FIG. 6 is a circuit diagram of ARINC429 channel of FIG. 2;

FIG. 7 is a circuit diagram of the JP-SW connector of FIG. 3;

FIG. 8 is a circuit diagram of the JB-SW connector of FIG. 3;

FIG. 9 is a circuit diagram of the RIB board connector of FIG. 3;

FIG. 10 is a circuit diagram of the relay K1-K8 of FIG. 3;

fig. 11 is a circuit diagram of the relay K9-K12 of fig. 3.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1, the device is installed in a cabinet and comprises an industrial personal computer composed of an NI8360B control card, a PXI-1044 cabinet composed of an NI8360A control card, a 3801 switch card, a 3802 switch card, a 3803 switch card, an ARINC429 card, a 4461 audio card and a GPIB-PCI module, and comprises a direct current programmable power supply and an alternating current programmable power supply, and comprises a digital multimeter, an aviation signal source and a resource interface box; the industrial personal computer is connected with the direct current programmable power supply and the alternating current programmable power supply respectively and the human-computer interface; the NI8360B control card is connected with the NI8360A control card; the GPIB-PCI module is respectively connected with the digital multimeter and the aviation signal source; the NI8360A control card, the 3801 switch card, the 3802 switch card, the 3803 switch card, the ARINC429 card, the 4461 audio card and the digital multimeter are respectively connected with the resource interface box; the aviation signal source is connected with the to-be-tested piece; the direct current programmable power supply and the alternating current programmable power supply are respectively connected with the resource interface box; the resource interface box is connected with the to-be-tested piece through the adapter.

As shown in fig. 2, a status indicator light, an expansion connector, an ARINC429 channel and a grounding channel are arranged on the front panel of the resource interface box; the expansion connectors are provided with two connectors iCon and iCon respectively, wherein the connector iCon is free for subsequent expansion; four ARINC429 channels are provided, namely a CH1 channel, a CH2 channel, a CH3 channel and a CH4 channel.

The layout of the front panel of the resource interface box of the device is shown in fig. 2, and two screw holes are respectively arranged at the left side and the right side of the front panel and are used for fixing the resource interface box in a standard cabinet. Four screw holes are respectively arranged on the upper side and the lower side of the front panel and used for fixing the front panel. The right upper corner of the front panel is provided with a connection state indicator lamp, and when the adapter and the resource interface box are connected normally, the lamp is lighted. The front panel is provided with an expansion connector, the resource interface box is connected with the adapter through a plug corresponding to the expansion connector, and the expansion connector is an i2 Micro iCon type connector produced by VPC company, the part number is as follows: 310130102. currently iCon1 connectors are available, iCon is left empty for subsequent expansion. The front panel has ARINC429 channels at the lower position, and four groups of channels are marked by CH1-CH4, and each group of channels comprises TX (transmitting channel) and RX (receiving channel). The right lower corner of the front panel is provided with a grounding channel for providing grounding signals of the device.

The circuit connection block diagram of the resource interface box is shown in fig. 3, and the internal circuit of the resource interface box mainly acts as follows: the signals of all the devices in fig. 1 are conditioned and transferred to iCon connectors, which are further connected to corresponding adapters to complete the connection of the devices and the pieces under test. The left side of the resource interface box is provided with all equipment interfaces in the device, the middle RIB board is arranged in the resource interface box, and the right side is provided with iCon interfaces.

The RIB board is an autonomously designed circuit board, eight connectors and twelve relays are arranged on the circuit board, and the eight connectors are respectively: JP-SW connector (50 pin), JB-SW connector (15 pin), WJ-429 connector (25 pin), KG-DY connector (9 pin), VPC-429 connector (25 pin), VPC-115 connector (2 pin), VPC-DY connector (9 pin), SB-115 connector (2 pin); the twelve relays are: relays K1 to K12.

As shown in fig. 3, the industrial personal computers are connected to the connector iCon1 through two serial ports respectively; the two serial ports are respectively: the serial ports RS232_1 and RS232_2, the digital multimeter, the 3803 switch card, the 4461 audio card, the 3801 switch card, the ARINC429 card and the 3802 switch card are respectively connected to the connector iCon1; wherein the 4461 audio card is connected with the 3801 switch card; the JP-SW connector on the RIB board is connected to the 3801 switch card and the ARINC429 card; the JB-SW connector on the RIB board is connected to the 3802 switch card; the WJ-429 connector on the RIB board connects to the ARINC429 channel on the front panel of the resource interface box; the KG-DY connector and the SB-115 connector on the RIB board are respectively connected to a direct current programmable power supply and an alternating current programmable power supply; the VPC-429 connector, the VPC-115 connector and the VPC-DY connector on the RIB board are respectively connected to the connector iCon; the connector iCon on the front panel is connected with the adapter.

In the working state of the device, all equipment is connected as shown in fig. 1, a circuit in the device is arranged in a dotted line frame in the figure, and when the device works, the following components are required to be connected: (1) human-machine interface: the system comprises a display, a keyboard, a mouse, a printer and an onboard very high frequency navigation assembly automatic test program deployed on an industrial personal computer, and is used for providing a software environment, information input and information output functions for operators to operate. (2) The adapter connects the resource interface box with different adapters to realize different testing functions. (3) The to-be-tested piece is the on-board very high frequency navigation system receiver required to be tested.

Of all the device components listed in FIG. 1, the resource interface box is self-developed for conditioning the distribution of signals from the other individual device components; the rest device components are market shelf products.

The main equipment components of the device have the following functions:

① GPIB-PCI module: the function is to realize the data communication between the computer and the digital multimeter;

ARINC429 module: the function is to complete the receiving and transmitting of ARINC429 aviation bus signals;

3801 switch card (single channel), 3802 switch card (multi-channel) and 3803 switch card (matrix): the function is to switch the test signal path;

NI8360A control card: the function is to communicate with an NI8360B control card arranged in the industrial personal computer, so as to realize the control of the industrial personal computer on the PXI chassis;

4461 Audio card (PXI-4461): the function is to detect the audio signal parameter output by the device to be tested;

⑥ ARINC429 card: the function is the receiving and transmitting of the multi-channel ARINC429 bus data;

Resource interface box: the system has the functions of conditioning signals from equipment such as an air signal source, a programmable alternating current power supply, a programmable direct current power supply, a digital multimeter, a PXI case, an industrial control computer and the like, and is connected with an adapter through a iCon connector positioned on a panel of a resource interface case;

Resource interface box front panel: the function is to transfer the wires and cables outside the cabinet to the interior of the cabinet;

The industrial personal computer: i.e., the industrial control computer, is the core component of the device and is primarily responsible for providing a human-machine interface for scheduling and controlling all components of the device to perform test tasks via an application program deployed on the industrial control computer.

Program-controlled alternating current power supply: providing 115V/400Hz alternating current for the device to be tested;

Program control direct current power supply: providing 28V direct current for the device to be tested;

The device also comprises a power supply module which provides 220V power supply for the device.

The digital multimeter of the device is Agilent 34410A type, measures voltage and current signals generated by equipment to be tested in the test process, and transmits the measurement result to an industrial personal computer.

The cabinet of the device is provided with a switch panel which controls the power supply of the whole device, and the switch panel is provided with three buttons of on, off and scram. Wherein, the on button is pressed, the device is powered on and can work; the off button is pressed, and the device cuts off the power supply; the emergency stop button is used for rapidly cutting off all power supply of the device when unexpected emergency occurs in the working process of the device so as to ensure the safety of the device and the equipment to be tested.

The aviation signal source of the device is an ATB-7300 type signal generator manufactured by areoflex company, and can generate VOR, LOC, G/S and MB excitation signals required by testing.

The PXI chassis of the device adopts a PXI modularized chassis PXI-1044 produced by NI company.

As shown in fig. 3, 4 and 5, the iCon connector has 168 pins in total, the 168 pins are divided into two areas P1A and P1B (the upper half is a P1A area, the lower half is a P1B area), each area is composed of 6 columns, 14 rows in each column, and 84 pins in total, wherein 6 columns in the P1A area are respectively: columns P1A-a, P1A-B, P1A-C, P1A-D, P1A-E, P1A-F; the 6 columns in the P1B region are: columns P1B-A, P1B-B, P1B-C, P1B-D, P1B-E, P1B-F.

As shown in fig. 4, 84 pins in the iCon connector P1A area aggregate the pin connection relationships in a 6 column 14 row order as follows:

Line 1 (P1A-1A through P1A-1F): the P1A-1A pin of the P1A-a column is connected with the No. 16 pin of the VPC-429 connector and is used for 429 bus receiving CH1 channel high-end signal transmission of ARINC 429; the P1A-1B pin of the P1A-B column is connected with the No. 4 pin of the VPC-429 connector and is used for 429 bus receiving the CH1 channel low-end signal transmission of ARINC 429; the P1A-1C pin of the P1A-C column is connected with the 17 # pin of the VPC-429 connector and is used for 429 bus to receive CH2 channel high-end signal transmission of ARINC 429; the P1A-1D pins of the P1A-D columns are connected with the No. 5 pin of the VPC-429 connector and are used for 429 buses to receive CH2 channel low-end signal transmission of ARINC 429; the pins P1A-1E of the P1A-E columns are connected with the pin 14 of the VPC-429 connector and are used for 429 buses to receive CH3 channel high-end signal transmission of ARINC 429; the P1A-1F pins of the P1A-F columns connect to pin 2 of the VPC-429 connector for 429 bus reception of the CH3 channel low-side signaling of ARINC 429.

Line 2 (P1A-2A through P1A-2F): the P1A-2A pin of the P1A-a column is connected with the No. 15 pin of the VPC-429 connector and is used for 429 bus to receive CH4 channel high-end signal transmission of ARINC 429; the P1A-2B pins of the P1A-B columns are connected with the No. 3 pin of the VPC-429 connector and are used for 429 buses to receive CH4 channel low-end signal transmission of ARINC 429; the P1A-2C pin of the P1A-C column is connected with the No. 25 pin of the VPC-429 connector and is used for 429 bus to send CH1 channel high-end signal transmission of ARINC 429; the P1A-2D pins of the P1A-D columns are connected with the No. 13 pin of the VPC-429 connector and are used for 429 bus transmission of CH1 channel low-end signal transmission of ARINC 429; the P1A-2E pins of the P1A-E columns are connected with the No. 24 pin of the VPC-429 connector and are used for 429 bus transmission of CH2 channel high-end signal transmission of ARINC 429; the P1A-2F pins of the P1A-F columns are connected with the No. 12 pin of the VPC-429 connector for 429 bus transmission of the CH2 channel low-end signal of ARINC 429.

Line 3 (P1A-3A through P1A-3F): the P1A-3A pin of the P1A-a column is connected with the No. 23 pin of the VPC-429 connector and is used for 429 bus transmitting CH3 channel high-end signal transmission of ARINC 429; the P1A-3B pins of the P1A-B columns are connected with the No. 11 pin of the VPC-429 connector and are used for 429 bus transmitting CH3 channel low-end signal transmission of ARINC 429; the P1A-3C pins of the P1A-C columns are connected with the No. 22 pin of the VPC-429 connector and are used for 429 bus transmission of CH4 channel high-end signal transmission of ARINC 429; the P1A-3D pins of the P1A-D columns are connected with the No. 10 pin of the VPC-429 connector and are used for 429 bus transmission of a CH4 channel low-end signal of ARINC 429; the P1A-3E pins of the P1A-E columns are connected with the No. 2 pin of the serial port RS232_2 of the industrial personal computer and are used for signal transmission of the serial port RS232_2 channel receiving end; the pins P1A-3F of the P1A-F columns are connected with the pin No. 2 of the serial port RS232_1 of the industrial personal computer and are used for signal transmission of the serial port RS232_1 channel receiving end.

Line 4 (P1A-4A through P1A-4F): the pins P1A-4A of the columns P1A-a are connected with the pin 8 of the VPC-429 connector and are used for high-end signal transmission of the signal receiving channel AI0 of the 4461 audio card; the pins P1A-4B of the columns P1A-B are connected with the pin 21 of the VPC-429 connector and are used for low-end signal transmission of the signal receiving channel AI0 of the 4461 audio card; the pins P1A-4C of the P1A-C columns are connected with the pin 1 of the signal receiving channel AI0 of the 4461 audio card and are used for high-end signal transmission of the signal receiving channel AI1 of the 4461 audio card; the P1A-4D pins of the P1A-D columns are connected with the No.2 pin of the signal receiving channel AI0 of the 4461 audio card and are used for low-end signal transmission of the signal receiving channel AI1 of the 4461 audio card; the P1A-4E pins of the P1A-E columns are connected with the No. 3 pin of the serial port RS232_2 of the industrial personal computer and are used for signal transmission of the serial port RS232_2 channel transmitting end; the pins P1A-4F of the P1A-F columns are connected with the pin No. 3 of the serial port RS232_1 of the industrial personal computer and are used for signal transmission of the serial port RS232_1 channel transmitting end.

Line 5 (P1A-5A through P1A-5F): the P1A-5A pin of the P1A-a column is connected with the No. 1 pin of the 3802 switch card connector, and is used for signal transmission of the public end of the switch channel 1; the P1A-5B pins of the P1A-B columns are connected with the No. 6 pin of the 3802 switch card connector and are used for signal transmission of the public end of the switch channel 2; the P1A-5C pins of the P1A-C columns are connected with the No. 11 pin of the 3802 switch card connector and are used for transmitting signals of the public end of the switch channel 3; the P1A-5D pins of the P1A-D columns are connected with the No. 16 pin of the 3802 switch card connector and are used for signal transmission of the public end of the switch channel 4; the P1A-5E pins of the P1A-E columns are connected with the No. 22 pin of the 3802 switch card connector, and are used for signal transmission of the public end of the switch channel 5; the pins P1A-5F of the P1A-F columns are connected with the pin 1 of the serial port RS232_1 of the industrial personal computer and are used for the signal transmission of the channel DCD1 of the RS232 serial port RS 232_1.

Line 6 (P1A-6A through P1A-6F): the P1A-6A pin of the P1A-a column is connected with the No. 2 pin of the 3802 switch card connector, and is used for CH1 signal transmission of the switch channel 1; the P1A-6B pins of the P1A-B columns are connected with the No. 7 pin of the 3802 switch card connector, and are used for CH1 signal transmission of the switch channel 2; the P1A-6C pins of the P1A-C columns are connected with the No. 12 pin of the 3802 switch card connector, and are used for CH1 signal transmission of the switch channel 3; the P1A-6D pins of the P1A-D columns are connected with the No. 17 pin of the 3802 switch card connector, and are used for CH1 signal transmission of the switch channel 4; the P1A-6E pins of the P1A-E columns are connected with the No. 23 pin of the 3802 switch card connector, and are used for CH1 signal transmission of the switch channel 5; the pins P1A-6F of the P1A-F columns are connected with the pin 4 of the serial port 1 of the industrial personal computer and are used for signal transmission of the RS232 serial port RS232_1 channel DTR 1.

Line 7 (P1A-7A through P1A-7F): the P1A-7A pin of the P1A-a column is connected with the No. 3 pin of the 3802 switch card connector, and is used for CH2 signal transmission of the switch channel 1; the P1A-7B pins of the P1A-B columns are connected with the No. 8 pin of the 3802 switch card connector, and are used for CH2 signal transmission of the switch channel 2; the P1A-7C pins of the P1A-C columns are connected with the No. 13 pin of the 3802 switch card connector, and are used for CH2 signal transmission of the switch channel 3; the P1A-7D pins of the P1A-D columns are connected with the No. 18 pin of the 3802 switch card connector, and are used for CH2 signal transmission of the switch channel 4; the P1A-7E pins of the P1A-E columns are connected with the No. 24 pin of the 3802 switch card connector and are used for CH2 signal transmission of the switch channel 5; the pins P1A-7F of the P1A-F columns are connected with the No. 6 pin of the serial port RS232_1 of the industrial personal computer and are used for signal transmission of the RS232 serial port RS232_1 channel DSR 1.

Line 8 (P1A-8A through P1A-8F): the P1A-8A pin of the P1A-a column is connected with the No. 4 pin of the 3802 switch card connector, and is used for CH3 signal transmission of the switch channel 1; the P1A-8B pins of the P1A-B columns are connected with the No.9 pin of the 3802 switch card connector, and are used for CH3 signal transmission of the switch channel 2; the P1A-8C pins of the P1A-C columns are connected with the No. 14 pin of the 3802 switch card connector, and are used for CH3 signal transmission of the switch channel 3; the P1A-8D pins of the P1A-D columns are connected with the No. 19 pin of the 3802 switch card connector, and are used for CH3 signal transmission of the switch channel 4; the P1A-8E pins of the P1A-E columns are connected with the No. 25 pin of the 3802 switch card connector, and are used for CH3 signal transmission of the switch channel 5; and pins P1A-8F of the P1A-F columns are connected with a pin 7 of the serial port RS232_1 of the industrial personal computer and are used for signal transmission of the RS232 serial port RS232_1 channel RTS 1.

Line 9 (P1A-9A through P1A-9F): the P1A-9A pin of the P1A-a column is connected with the No. 5 pin 3802 switch card connector for CH4 signal transmission of the switch channel 1; the P1A-9B pins of the P1A-B columns are connected with the No. 10 pin of the 3802 switch card connector, and are used for CH4 signal transmission of the switch channel 2; the pins P1A-9C of the P1A-C columns are connected with the pin No. 15 of the 3802 switch card connector, and are used for CH4 signal transmission of the switch channel 3; the P1A-9D pins of the P1A-D columns are connected with the No. 20 pin of the 3802 switch card connector, and are used for CH4 signal transmission of the switch channel 4; the pins P1A-9E of the P1A-E columns are connected with the pin 3802 of the switch card connector No. 26 and are used for CH4 signal transmission of the switch channel 5; the pins P1A-9F of the P1A-F columns are connected with the No. 8 pin of the serial port RS232_1 of the industrial personal computer and are used for signal transmission of the channel CTS1 of the RS232 serial port RS 232_1.

Line 10 (P1A-10A through P1A-10F): the P1A-10A pin of the P1A-a column is connected with the No. 27 pin of the 3802 switch card connector, and is used for transmitting signals of the public end of the switch channel 6; the pins P1A-10B of the columns P1A-B are connected with the pin 3802 of the switch card connector 32, and are used for transmitting signals of the public end of the switch channel 7; the P1A-10C pins of the P1A-C columns are connected with the No. 37 pin of the 3802 switch card connector, and are used for transmitting signals of the public end of the switch channel 8; the P1A-10D pins of the P1A-D columns are connected to digital ground; the P1A-10E pins of the P1A-E columns are connected with a DMM (digital multimeter) No. 1 pin and are used for measuring high-end transmission of signals; the P1A-10F pins of the P1A-F columns are connected with the DMM (digital multimeter) No. 2 pin for measuring low-end transmission of signals.

Line 11 (P1A-11A through P1A-11F): the P1A-11A pin of the P1A-a column is connected with the 3802 switch card connector No. 28 pin for CH1 signal transmission of the switch channel 6; the pins P1A-11B of the P1A-B columns are connected with the pin 33 of the 3802 switch card connector, and are used for CH1 signal transmission of the switch channel 7; the P1A-11C pins of the P1A-C columns are connected with the 38 number pin of the 3802 switch card connector, and are used for CH1 signal transmission of the switch channel 8; suspending pins P1A-11D of the columns P1A-D for standby; the P1A-11E pins of the P1A-E columns are connected with the DMM (digital multimeter) No. 3 pin for 4W SENSE high-end signal transmission; the P1A-11F pins of the P1A-F columns are connected with the DMM (digital versatile table) No. 4 pin for 4W SENSE low-end signal transmission.

Line 12 (P1A-12A through P1A-12F): the P1A-12A pin of the P1A-a column is connected with the No. 29 pin of the 3802 switch card connector, and is used for CH2 signal transmission of the switch channel 6; the pins P1A-12B of the P1A-B columns are connected with the pin 3802 of the switch card connector 34, and are used for CH2 signal transmission of the switch channel 7; the P1A-12C pins of the P1A-C columns are connected with the No. 39 pin of the 3802 switch card connector, and are used for CH2 signal transmission of the switch channel 8; suspending pins P1A-12D of the columns P1A-D for standby; suspending pins P1A-12E of the columns P1A-E for standby; pins P1A-12F of the columns P1A-F are suspended for standby.

Line 13 (P1A-13A through P1A-13F): the P1A-13A pin of the P1A-a column is connected with the No. 30 pin of the 3802 switch card connector, and is used for CH3 signal transmission of the switch channel 6; the pins P1A-13B of the P1A-B columns are connected with the pin 3802 of the switch card connector 35, and are used for CH3 signal transmission of the switch channel 7; the P1A-13C pins of the P1A-C columns are connected with the No. 40 pin of the 3802 switch card connector, and are used for CH3 signal transmission of the switch channel 8; suspending pins P1A-13D of the columns P1A-D for standby; suspending pins P1A-13E of the columns P1A-E for standby; the P1A-13F pin connection plugs of the P1A-F columns detect the high end.

Line 14 (P1A-14A through P1A-14F): the pins P1A-14A of the P1A-a columns are connected with the pin 3802 of the switch card connector No. 31 for CH4 signal transmission of the switch channel 6; the pins P1A-14B of the P1A-B columns are connected with the No. 36 pin of the 3802 switch card connector and are used for CH4 signal transmission of the switch channel 7; the pins P1A-14C of the P1A-C columns are connected with the pin 3802 of the switch card connector No. 41, and are used for CH4 signal transmission of the switch channel 8; suspending pins P1A-14D of the columns P1A-D for standby; suspending pins P1A-14E of the columns P1A-E for standby; the P1A-14F pins of the P1A-F columns connect the plug detect low side and the VPC-429 connector 19 pin.

As shown in fig. 5, 84 pins in the iCon connector P1B region aggregate the respective pin connection relationships in a 6-column 14-row order as follows:

Line 1 (P1B-1A to P1B-1F): the P1B-1A pin of the P1B-A column is connected with the 3803 switch card connector No. 1 pin, and is used for transmitting an A end signal of the switch channel 1; the P1B-1B pin of the P1B-B column is connected with the No. 20 pin of the 3803 switch card connector and is used for transmitting the B end signal of the switch channel 1; the P1B-1C pin of the P1B-C column is connected with the 3803 switch card connector No. 2 pin, and is used for transmitting an A end signal of the switch channel 2; the P1B-1D pin of the P1B-D column is connected with the No. 21 pin of the 3803 switch card connector, and is used for transmitting the B end signal of the switch channel 3; the P1B-1E pins of the P1B-E columns are connected with the No. 3 pin of the 3803 switch card connector and are used for transmitting signals at the A end of the switch channel 3; the P1B-1F pins of the P1B-F columns are connected 3803 to the No. 22 pin of the switch card connector for B-side signal transmission of the switch channel 4.

Line 2 (P1B-2A to P1B-2F): the P1B-2A pin of the P1B-A column is connected with the No. 4 pin of the 3803 switch card connector for transmitting an A end signal of the switch channel 4; the P1B-2B pin of the P1B-B column is connected with the No. 23 pin of the 3803 switch card connector and is used for transmitting the B end signal of the switch channel 4; the P1B-2C pin of the P1B-C column is connected with the No. 5 pin of the 3803 switch card connector, and is used for transmitting an A end signal of the switch channel 5; the P1B-2D pins of the P1B-D columns are connected with the No. 24 pin of the 3803 switch card connector and are used for B-end signal transmission of the switch channel 5; the P1B-2E pins of the P1B-E columns are connected with the No. 6 pin of the 3803 switch card connector and are used for transmitting signals at the A end of the switch channel 6; the pins P1B-2F of the P1B-F columns are connected 3803 to the pin 25 of the switch card connector for B-side signal transmission of the switch channel 6.

Line 3 (P1B-3A to P1B-3F): the P1B-3A pin of the P1B-A column is connected with the No. 7 pin of the 3803 switch card connector, and is used for transmitting an A end signal of the switch channel 7; the P1B-3B pin of the P1B-B column is connected with the No. 26 pin of the 3803 switch card connector and is used for transmitting the B end signal of the switch channel 7; the P1B-3C pins of the P1B-C columns are connected with the No. 8 pin of the 3803 switch card connector, and are used for transmitting signals at the A end of the switch channel 8; the P1B-3D pins of the P1B-D columns are connected with the No. 27 pin of the 3803 switch card connector and are used for B-end signal transmission of the switch channel 8; the P1B-3E pins of the P1B-E columns are connected with the No. 10 pin of the 3803 switch card connector and are used for transmitting signals at the A end of the switch channel 9; the pins P1B-3F of the P1B-F columns are connected 3803 to the pin 29 of the switch card connector for B-side signal transmission of the switch channel 9.

Line 4 (P1B-4A to P1B-4F): the P1B-4A pin of the P1B-A column is connected with the No. 11 pin of the 3803 switch card connector, and is used for transmitting an A end signal of the switch channel 10; the P1B-4B pin of the P1B-B column is connected with the No. 30 pin of the 3803 switch card connector, and is used for transmitting the B end signal of the switch channel 10; the P1B-4C pins of the P1B-C columns are connected with the No. 12 pin of the 3803 switch card connector and are used for transmitting signals at the A end of the switch channel 11; the P1B-4D pins of the P1B-D columns are connected with the No. 31 pin of the 3803 switch card connector and are used for transmitting signals at the B end of the switch channel 11; the P1B-4E pins of the P1B-E columns are connected with the No. 13 pin of the 3803 switch card connector and are used for transmitting signals at the A end of the switch channel 12; the P1B-4F pins of the P1B-F columns connect 3803 switch card connector pin 32 for B-side signaling of the switch channel 12.

Line 5 (P1B-5A to P1B-5F): the P1B-5A pin of the P1B-A column is connected with the No. 14 pin of the 3803 switch card connector, and is used for transmitting an A end signal of the switch channel 13; the P1B-5B pin of the P1B-B column is connected with the No. 33 pin of the 3803 switch card connector, and is used for transmitting the B end signal of the switch channel 13; the P1B-5C pins of the P1B-C columns are connected with the No. 15 pin of the 3803 switch card connector and are used for transmitting signals at the A end of the switch channel 14; the P1B-5D pins of the P1B-D columns are connected with the No. 34 pin of the 3803 switch card connector, and are used for transmitting B-end signals of the switch channel 14; the pins P1B-5E of the P1B-E columns are connected with the pin 3803 of the switch card connector 16, and are used for transmitting signals at the A end of the switch channel 15; the P1B-5F pins of the P1B-F columns connect 3803 switch card connector pin 35 for B-side signaling of the switch channel 15.

Line 6 (P1B-6A to P1B-6F): the P1B-6A pin of the P1B-A column is connected with the No. 17 pin of the 3803 switch card connector, and is used for transmitting an A end signal of the switch channel 16; the P1B-6B pins of the P1B-B columns are connected with the No. 36 pin of the 3803 switch card connector for B-end signal transmission of the switch channel 16; the P1B-6C pins of the P1B-C columns are connected with the No. 9 pin of the 3803 switch card connector and are used for switching the signal transmission of the public terminal 1A; the P1B-6D pins of the P1B-D columns are connected with the No. 28 pin of the 3803 switch card connector and are used for switching the signal transmission of the public terminal 1B; the P1B-6E pins of the P1B-E columns are connected with the No. 18 pin of the 3803 switch card connector and are used for switching the signal transmission of the public terminal 2A; the P1B-6F pins of the P1B-F columns are connected 3803 to the switch card connector 37 pin for switching the common 2B signal transmission.

Line 7 (P1B-7A through P1B-7F): the P1B-7A pin of the P1B-A column is connected with the No. 34 pin of the 3801 switch card connector, and is used for transmitting an A end signal of the switch channel 1; the P1B-7B pin of the P1B-B column is connected with the No. 33 pin of the 3801 switch card connector, and is used for transmitting the B end signal of the switch channel 1; the P1B-7C pins of the P1B-C columns are connected with the No. 32 pin of the 3801 switch card connector and are used for transmitting signals at the A end of the switch channel 2; the P1B-7D pins of the P1B-D columns are connected with the No. 31 pin of the 3801 switch card connector, and are used for transmitting signals at the B end of the switch channel 2; the pins P1B-7E of the P1B-E columns are connected with the No. 30 pin of the 3801 switch card connector, and are used for transmitting signals at the A end of the switch channel 3; the pins P1B-7F of the P1B-F columns are connected 3801 to pin 29 of the switch card connector for B-side signal transmission of the switch channel 3.

Line 8 (P1B-8A through P1B-8F): the P1B-8A pin of the P1B-A column is connected with the No. 28 pin of the 3801 switch card connector, and is used for transmitting an A end signal of the switch channel 4; the P1B-8B pin of the P1B-B column is connected with the No. 27 pin of the 3801 switch card connector, and is used for transmitting the B end signal of the switch channel 4; the P1B-8C pins of the P1B-C columns are connected with the No. 26 pin of the 3801 switch card connector and are used for transmitting signals at the A end of the switch channel 5; the P1B-8D pins of the P1B-D columns are connected with the No. 25 pin of the 3801 switch card connector, and are used for transmitting signals at the B end of the switch channel 5; the P1B-8E pins of the P1B-E columns are connected with the No. 24 pin of the 3801 switch card connector and are used for transmitting signals at the A end of the switch channel 6; the pins P1B-8F of the P1B-F columns are connected 3801 to the pin 23 of the switch card connector for B-side signal transmission of the switch channel 6.

Line 9 (P1B-9A to P1B-9F): the P1B-9A pin of the P1B-A column is connected with the No. 22 pin of the 3801 switch card connector, and is used for transmitting an A end signal of the switch channel 7; the P1B-9B pin of the P1B-B column is connected with the No. 21 pin of the 3801 switch card connector, and is used for transmitting the B end signal of the switch channel 7; the P1B-9C pins of the P1B-C columns are connected with the No. 20 pin of the 3801 switch card connector, and are used for transmitting signals at the A end of the switch channel 8; the P1B-9D pins of the P1B-D columns are connected with the No. 19 pin of the 3801 switch card connector, and are used for B-end signal transmission of the switch channel 8; the pins P1B-9E of the P1B-E columns are connected with the pin 3801 of the switch card connector 18, and are used for transmitting signals at the A end of the switch channel 9; the pins P1B-9F of the P1B-F columns are connected 3801 to the pin 17 of the switch card connector for B-side signal transmission of the switch channel 9.

Line 10 (P1B-10A to P1B-10F): the P1B-10A pin of the P1B-A column is connected with the No. 16 pin of the 3801 switch card connector, and is used for transmitting an A end signal of the switch channel 10; the P1B-10B pin of the P1B-B column is connected with the No. 15 pin of the 3801 switch card connector, and is used for transmitting the B end signal of the switch channel 10; the P1B-10C pins of the P1B-C columns are connected with the No. 14 pin of the 3801 switch card connector, and are used for transmitting A-end signals of the switch channel 11; the P1B-10D pins of the P1B-D columns are connected with the No. 13 pin of the 3801 switch card connector, and are used for transmitting B-end signals of the switch channel 11; the P1B-10E pins of the P1B-E columns are connected with the No. 12 pin of the 3801 switch card connector, and are used for transmitting signals at the A end of the switch channel 12; the P1B-10F pins of the P1B-F columns connect 3801 switch card connector pin 11 for B-side signaling of the switch channel 12.

Line 11 (P1B-11A to P1B-11F): the P1B-11A pin of the P1B-A column is connected with the No. 10 pin of the 3801 switch card connector, and is used for transmitting an A end signal of the switch channel 13; the P1B-11B pin of the P1B-B column is connected with the No. 9 pin of the 3801 switch card connector, and is used for transmitting the B end signal of the switch channel 13; the P1B-11C pins of the P1B-C columns are connected with the No. 8 pin of the 3801 switch card connector, and are used for transmitting A-end signals of the switch channel 14; the pins P1B-11D of the columns P1B-D are connected with the pin 3801 of the switch card connector No. 7 for B-end signal transmission of the switch channel 14; the pins P1B-11E of the P1B-E columns are connected with the pin 3801 of the switch card connector No. 6 for A end signal transmission of the switch channel 15; the P1B-11F pins of the P1B-F columns connect 3801 switch card connector pin 5 for B-side signaling of switch channel 15.

Line 12 (P1B-12A to P1B-12F): the P1B-12A pin of the P1B-A column is connected with the No. 4 pin of the 3801 switch card connector, and is used for transmitting an A end signal of the switch channel 16; the P1B-12B pin of the P1B-B column is connected with the No. 3 pin of the 3801 switch card connector, and is used for transmitting the B end signal of the switch channel 16; the pins P1B-12C of the columns P1B-C are connected with the chassis ground; the pins P1B-12D of the P1B-D columns are connected with the pin 7 of the VPC-DY connector and are used for +5V DC high-end signal transmission; suspending pins P1B-12E of the columns P1B-E for standby; the pins P1B-12F of the P1B-F columns are suspended for standby.

Line 13 (P1B-13A through P1B-13F): the P1B-13A pin of the P1B-A column is connected with the No. 2 pin of the VPC-115 connector and is used for 115V AC low-end signal transmission; the pins P1B-13B of the columns P1B-B are connected with the pin No. 2 of the VPC-115 connector and are used for 115V AC low-end signal transmission; suspending pins P1B-13C of the columns P1B-C for standby; the pins P1B-13D of the columns P1B-D are connected with the pin 1 of the VPC-DY connector and are used for 28V DC high-end signal transmission; the pins P1B-13E of the P1B-E columns are connected with the pin 3 of the VPC-DY connector and are used for-15V DC high-end signal transmission; the pins P1B-13F of the P1B-F columns are connected with the pin 4 of the VPC-DY connector for +15V DC high-end signal transmission.

Line 14 (P1B-14A through P1B-14F): the P1B-14A pin of the P1B-A column is connected with the No. 1 pin of the VPC-115 connector and is used for 115V AC high-end signal transmission; the pins P1B-14B of the columns P1B-B are connected with the pin 1 of the VPC-115 connector and are used for 115V AC high-end signal transmission; suspending pins P1B-14C of the columns P1B-C for standby; the pins P1B-14D of the columns P1B-D are connected with the pin No. 2 of the VPC-DY connector and are used for 28V DC low-end signal transmission; suspending pins P1B-14E of the columns P1B-E for standby; the pins P1B-14F of the P1B-F columns are connected with the pin 8 of the VPC-DY connector for +15V DC low-end signal transmission.

As shown in FIG. 6, the WJ-429 connector and front panel ARINC429 channel connection relationship is summarized as follows:

As shown in fig. 7, the connection relationship of the ARINC429 card connector and the JP-SW connector is summarized as follows:

As shown in fig. 7, the connection relationship between the 3801 switch card connector and the 4461 audio card is summarized as follows:

As shown in fig. 7, the connection relationship of the 3801 switch card connector and the JP-SW connector is summarized as follows:

As shown in fig. 8, the connection relationship between the JB-SW connector and the 3802 switch card connector is summarized as follows:

As shown in fig. 9 and 10, pins 1 of relays K1 to K8 are all connected to pin 8 of the KG-DY connector; the No. 3 pins of the relays K1 to K8 are respectively connected to the No. 16 pin, the No. 25 pin, the No. 17 pin, the No. 24 pin, the No. 14 pin, the No. 23 pin, the No. 15 pin and the No. 22 pin of the WJ-429 connector; the No. 4 pins of the relays K1 to K8 are respectively connected to the No. 16 pin, the No. 25 pin, the No. 17 pin, the No. 24 pin, the No. 14 pin, the No. 23 pin, the No. 15 pin and the No. 22 pin of the VPC-429 connector; the No. 5 pins of the relays K1 to K8 are respectively connected to the No. 9 pin, the No. 29 pin, the No. 13 pin, the No. 25 pin, the No. 1 pin, the No. 21 pin, the No. 5 pin and the No. 17 pin of the JP-SW connector; the 8-numbered pins of the relays K1 to K8 are respectively connected to the 11-numbered pin, the 31-numbered pin, the 15-numbered pin, the 27-numbered pin, the 3-numbered pin, the 23-numbered pin, the 7-numbered pin and the 19-numbered pin of the JP-SW connector; the No. 9 pins of the relays K1 to K8 are respectively connected to the No. 4 pin, the No. 13 pin, the No. 5 pin, the No. 12 pin, the No. 2 pin, the No. 11 pin, the No. 3 pin and the No. 10 pin of the VPC-429 connector; the No. 10 pins of the relays K1 to K8 are respectively connected to the No. 4 pin, the No. 13 pin, the No. 5 pin, the No. 12 pin, the No. 2 pin, the No. 11 pin, the No. 3 pin and the No. 10 pin of the WJ-429 connector; the 12-number pins of the relays K1 to K8 are respectively connected to the 32-number pin, the 42-number pin, the 34-number pin, the 40-number pin, the 28-number pin, the 38-number pin, the 30-number pin and the 36-number pin of the JP-SW connector; the No. 4 pin, no. 6 pin, no. 8 pin, no. 10 pin, no. 12 pin, no. 14 pin, no. 16 pin, no. 18 pin, no. 20 pin, no. 22 pin, no. 24 pin, no. 26 pin of the JP-SW connector are all connected to the No. 19 pin of the VPC-429 connector, wherein the No. 26 pin, no. 18 pin, no. 24 pin, no. 16 pin, no. 22 pin, no. 14 pin, no. 20 pin, no. 12 pin of the JP-SW connector form single pole double throw switches with the No. 12 pins of the relays K1 to K8 respectively through 3801 switch cards.

As shown in fig. 9 and 11, pins 1 of the relays K9 to K12 are all connected to pin 8 of the KG-DY connector; the No. 4 pin and the No. 9 pin of the relay K9 are respectively connected to the No. 4 pin and the No. 3 pin of the KG-DY connector; the No. 5 pin and the No. 8 pin of the relay K9 are respectively connected to the No. 4 pin and the No. 3 pin of the VPC-DY connector, and then are connected with the P1B-13E pin and the P1B-13F pin of the iCon connector; the 3-pin and the 6-pin of the relay K10 are respectively connected to the 1-pin and the 2-pin of the KG-DY connector, wherein the 1-pin and the 6-pin of the KG-DY connector are in short circuit, and the 2-pin and the 7-pin are in short circuit; the pin 4 and the pin 5 of the relay K10 are respectively connected to the pin 1 and the pin 2 of the VPC-DY connector, and then are connected with the pin P1B-13A and the pin P1B-14A of the iCon connector; the No. 3 pin and the No. 6 pin of the relay K11 are respectively connected to the No. 2 pin and the No. 1 pin of the SB-115 connector; the pin 4 and the pin 5 of the relay K11 are respectively connected to the pin 2 and the pin 1 of the VPC-115 connector, and then are connected with the pin P1B-13B and the pin P1B-14B of the iCon1 connector; the No. 4 pin and the No. 9 pin of the relay K12 are respectively connected with the No. 9 pin and the No. 5 pin of the KG-DY connector; the No. 5 pin and the No. 8 pin of the relay K12 are respectively connected to the No. 7 pin and the No. 8 pin of the VPC-DY connector, and then are connected with the P1B-13D pin and the P1B-14D pin of the iCon connector; the 12-number pins of the relays K9 to K12 are respectively connected to the 48-number pin, the 46-number pin, the 44-number pin and the 50-number pin of the JP-SW connector; the No. 10 pin, the No. 8 pin, the No. 4 pin and the No. 6 pin of the JP-SW connector respectively form a single-pole double-throw switch with the No. 12 pins of the relays K9 and K12 through 3801 switch cards.

The resistor, capacitor and diode circuits connected between the pins of the K1-to-K12-relays are well known and will not be described in detail herein, as examples of circuits provided by the original suppliers.

The working principle of the device is as follows: after the device is electrified and started, a test program loaded in the industrial personal computer is operated, and the equipment to be tested is connected to the iCon connector of the resource interface box through the adapter, and at the moment, the connection state indicator lamp in the figure 2 is turned on, so that the test can be started. The test program and test standard refer to the CMM manual provided by the equipment under test provider. The industrial personal computer is responsible for controlling the 3801 switch card, the 3802 switch card, the 3803 switch card and the relays on the RIB board in the resource interface box to switch the test channels; controlling a program-controlled alternating current power supply and a program-controlled direct current power supply to generate direct current and alternating current required by testing; controlling the digital multimeter to finish the measurement of the electric parameters; controlling an aviation signal source to generate an excitation signal required by test; control ARINC429 card to produce and read ARINC429 data needed in the test process; controlling 4461 the audio card to generate and read the audio signals required in the test process; the test procedure is visually displayed on a display and provides a printing function.

The operation steps of the device are as follows:

1) Switching on a power supply of the device;

2) The industrial personal computer, the PXI case and the aviation signal source are started (the sequence is not sequential);

3) Starting test software deployed on an industrial personal computer;

4) Inputting test information such as test serial numbers and tester numbers;

5) Selecting test content, such as a power supply test, an ARINC429 test and a sensitivity test;

6) Selecting a test mode, e.g., a single test, multiple repeated tests;

7) Testing according to the software prompt;

8) Printing and outputting a test result;

9) Closing the industrial personal computer and the aviation signal source;

10 The power supply of the device is turned off.

Claims

1. The automatic testing device for the receiver of the onboard very high frequency navigation system is characterized in that the device is arranged in a cabinet and comprises an industrial personal computer consisting of an NI8360B control card, a 3801 switch card, a 3802 switch card, a 3803 switch card, an ARINC429 card, a 4461 audio card and a PXI-1044 chassis consisting of GPIB-PCI modules, wherein the industrial personal computer consists of a digital multimeter, an aviation signal source and a resource interface box; the industrial personal computer is connected with the direct current programmable power supply and the alternating current programmable power supply respectively and the human-computer interface; the NI8360B control card is connected with the NI8360A control card; the GPIB-PCI module is respectively connected with the digital multimeter and the aviation signal source; the NI8360A control card, the 3801 switch card, the 3802 switch card, the 3803 switch card, the ARINC429 card, the 4461 audio card and the digital multimeter are respectively connected with the resource interface box; the aviation signal source is connected with the to-be-detected piece; the direct-current programmable power supply and the alternating-current programmable power supply are respectively connected with the resource interface box; the resource interface box is connected with the to-be-tested piece through the adapter;

The front panel of the resource interface box is provided with a status indicator lamp, an expansion connector, an ARINC429 channel and a grounding channel; the expansion connectors are two, namely a connector iCon and a connector iCon2, wherein the connector iCon is free for subsequent expansion; four ARINC429 channels are respectively a CH1 channel, a CH2 channel, a CH3 channel and a CH4 channel;

the resource interface box is internally provided with a RIB board consisting of a JP-SW connector, a JB-SW connector, a WJ-429 connector, a KG-DY connector, a VPC-429 connector, a VPC-115 connector, a VPC-DY connector, a SB-115 connector and twelve relays;

The industrial personal computer is connected to the connector iCon1 through two serial ports respectively; the two serial ports are respectively: the digital multimeter, 3803 switch card, 4461 audio card, 3801 switch card, ARINC429 card and 3802 switch card are respectively connected to the connector iCon; wherein the 4461 audio card is connected with the 3801 switch card; the JP-SW connector on the RIB board is connected to the 3801 switch card and the ARINC429 card; a JB-SW connector on the RIB board is connected to the 3802 switch card; the WJ-429 connector on the RIB board connects to ARINC429 channel on the front panel of the resource interface box; the KG-DY connector and the SB-115 connector on the RIB board are respectively connected to the direct current programmable power supply and the alternating current programmable power supply; the VPC-429 connector, the VPC-115 connector and the VPC-DY connector on the RIB board are respectively connected to the connector iCon; a connector iCon on the front panel is connected with the adapter;

the iCon connector is totally divided into 168 pins, the 168 pins are divided into two areas P1A and P1B, each area is composed of 6 columns, 14 rows of each column and 84 pins, wherein 6 columns in the P1A area are respectively: columns P1A-a, P1A-B, P1A-C, P1A-D, P1A-E, P1A-F; the 6 columns in the P1B region are: columns P1B-A, P1B-B, P1B-C, P1B-D, P1B-E, P1B-F;

2. The automatic receiver testing device for an on-board vhf navigation system according to claim 1, wherein 84 pins in the P1A area of the iCon connector aggregate the pin connection relations according to the 6-column 14-row order as follows:

Line 1: the P1A-1A pin of the P1A-a column is connected with the No. 16 pin of the VPC-429 connector; the pins P1A-1B of the P1A-B columns are connected with the pin 4 of the VPC-429 connector; the pins P1A-1C of the P1A-C columns are connected with the pin 17 of the VPC-429 connector; the pins P1A-1D of the P1A-D columns are connected with the pin 5 of the VPC-429 connector; the pins P1A-1E of the P1A-E columns are connected with the pin 14 of the VPC-429 connector; the pins P1A-1F of the P1A-F columns are connected with the pin No. 2 of the VPC-429 connector;

line 2: the pins P1A-2A of the columns P1A-a are connected with the pin 15 of the VPC-429 connector; the pins P1A-2B of the P1A-B columns are connected with the pin 3 of the VPC-429 connector; the pins P1A-2C of the P1A-C columns are connected with the pin 25 of the VPC-429 connector; the P1A-2D pins of the P1A-D columns are connected with the No. 13 pin of the VPC-429 connector; the pins P1A-2E of the P1A-E columns are connected with the pin 24 of the VPC-429 connector; the pins P1A-2F of the P1A-F columns are connected with the pin 12 of the VPC-429 connector;

line 3: the pins P1A-3A of the columns P1A-a are connected with the pin 23 of the VPC-429 connector; the pins P1A-3B of the P1A-B columns are connected with the pin 11 of the VPC-429 connector; the pins P1A-3C of the P1A-C columns are connected with the pin 22 of the VPC-429 connector; the P1A-3D pins of the P1A-D columns are connected with the No. 10 pin of the VPC-429 connector; P1A-3E pins of the P1A-E columns are connected with a No. 2 pin of a serial port RS232_2 of the industrial personal computer; P1A-3F pins of the P1A-F columns are connected with a No. 2 pin of a serial port RS232_1 of the industrial personal computer;

Line 4: the pins P1A-4A of the columns P1A-a are connected with the pin 8 of the VPC-429 connector; the pins P1A-4B of the P1A-B columns are connected with the pin 21 of the VPC-429 connector; P1A-4C pins of the P1A-C columns are connected with pin 1 of 4461 audio card channel AI 0; the P1A-4D pins of the P1A-D columns connect to pin 2 of 4461 Audio card channel AI 0; P1A-4E pins of the P1A-E columns are connected with a No. 3 pin of a serial port RS232_2 of the industrial personal computer; P1A-4F pins of the P1A-F columns are connected with a No. 3 pin of a serial port RS232_1 of the industrial personal computer;

Line 5: the P1A-5A pins of the P1A-a columns are connected with the No. 1 pin of the 3802 switch card connector; the pins P1A-5B of the P1A-B columns are connected with the pin 6 of the 3802 switch card connector; the pins P1A-5C of the P1A-C columns are connected with the pin 11 of the 3802 switch card connector; the P1A-5D pins of the P1A-D columns connect 3802 to the number 16 pin of the switch card connector; the P1A-5E pins of the P1A-E columns are connected with the No. 22 pin of the 3802 switch card connector; P1A-5F pins of the P1A-F columns are connected with a No. 1 pin of a serial port RS232_1 of the industrial personal computer;

Line 6: the P1A-6A pins of the P1A-a columns are connected with the No. 2 pin of the 3802 switch card connector; the pins P1A-6B of the P1A-B columns are connected with the pin 7 of the 3802 switch card connector; the pins P1A-6C of the P1A-C columns are connected with the pin 12 of the 3802 switch card connector; the pins P1A-6D of the P1A-D columns connect 3802 to pin 17 of the switch card connector; the pins P1A-6E of the P1A-E columns are connected with the pin 23 of the 3802 switch card connector; P1A-6F pins of the P1A-F columns are connected with a No. 4 pin of a serial port RS232_1 of the industrial personal computer;

Line 7: the P1A-7A pins of the P1A-a columns are connected with the No. 3 pin of the 3802 switch card connector; the pins P1A-7B of the P1A-B columns are connected with the pin 8 of the 3802 switch card connector; P1A-7C pins of the P1A-C columns are connected with the No. 13 pin of the 3802 switch card connector; the P1A-7D pins of the P1A-D columns connect 3802 to the 18 pin of the switch card connector; the pins P1A-7E of the P1A-E columns are connected with the pin 24 of the 3802 switch card connector; P1A-7F pins of the P1A-F columns are connected with a No. 6 pin of a serial port RS232_1 of the industrial personal computer;

Line 8: the P1A-8A pins of the P1A-a columns are connected with the No. 4 pin of the 3802 switch card connector; the pins P1A-8B of the P1A-B columns are connected with the pin 9 of the 3802 switch card connector; the pins P1A-8C of the P1A-C columns are connected with the pin No. 14 of the 3802 switch card connector; the P1A-8D pins of the P1A-D columns connect 3802 to pin 19 of the switch card connector; the pins P1A-8E of the P1A-E columns are connected with the pin No. 25 of the 3802 switch card connector; P1A-8F pins of the P1A-F columns are connected with a No. 7 pin of a serial port RS232_1 of the industrial personal computer;

Line 9: the P1A-9A pins of the P1A-a columns are connected with the No. 5 pin of the 3802 switch card connector; the pins P1A-9B of the P1A-B columns are connected with the pin 10 of the 3802 switch card connector; the pins P1A-9C of the P1A-C columns are connected with the pin 15 of the 3802 switch card connector; the pins P1A-9D of the P1A-D columns are connected with the pin No. 20 of the 3802 switch card connector; the pins P1A-9E of the P1A-E columns are connected with the pin 26 of the 3802 switch card connector; P1A-9F pins of the P1A-F columns are connected with the No. 8 pin of the serial port RS232_1 of the industrial personal computer;

Line 10: the P1A-10A pins of the P1A-a columns are connected with the No. 27 pin of the 3802 switch card connector; the pins P1A-10B of the P1A-B columns are connected with the pin 32 of the 3802 switch card connector; the pins P1A-10C of the P1A-C columns are connected with the pin 37 of the 3802 switch card connector; the P1A-10D pins of the P1A-D columns are connected to digital ground; the pins P1A-10E of the columns P1A-E are connected with the pin 1 of the digital multimeter; the pins P1A-10F of the columns P1A-F are connected with the pin No. 2 of the digital multimeter;

line 11: the P1A-11A pins of the P1A-a columns are connected with the No. 28 pin of the 3802 switch card connector; the pins P1A-11B of the P1A-B columns are connected with the pin 33 of the 3802 switch card connector; the pins P1A-11C of the P1A-C columns are connected with the pin 38 of the 3802 switch card connector; suspending pins P1A-11D of the columns P1A-D for standby; the pins P1A-11E of the columns P1A-E are connected with the pin 3 of the digital multimeter; the pins P1A-11F of the columns P1A-F are connected with the pin 4 of the digital multimeter;

Line 12: the P1A-12A pins of the P1A-a columns connect 3802 to pin 29 of the switch card connector; the pins P1A-12B of the columns P1A-B are connected with the pins 34 of the 3802 switch card connector; the pins P1A-12C of the P1A-C columns are connected with the pin 39 of the 3802 switch card connector; suspending pins P1A-12D of the columns P1A-D for standby; suspending pins P1A-12E of the columns P1A-E for standby; suspending pins P1A-12F of the columns P1A-F for standby;

Line 13: the P1A-13A pins of the P1A-a columns are connected with the No. 30 pin of the 3802 switch card connector; the pins P1A-13B of the P1A-B columns are connected with the pin 35 of the 3802 switch card connector; the pins P1A-13C of the P1A-C columns are connected with the pin 40 of the 3802 switch card connector; suspending pins P1A-13D of the columns P1A-D for standby; suspending pins P1A-13E of the columns P1A-E for standby; the P1A-13F pins of the P1A-F columns are connected with iCon and the connector is connected with the high end;

3. The automatic receiver testing device for an on-board vhf navigation system according to claim 1, wherein 84 pins in the P1B area of the iCon connector aggregate the pin connection relations according to the 6-column 14-row order as follows:

line 1: the P1B-1A pin of the P1B-A column is connected with the No. 1 pin of the 3803 switch card connector; the P1B-1B pin of the P1B-B column is connected with the No. 20 pin of the 3803 switch card connector; the P1B-1C pin of the P1B-C column is connected with the No. 2 pin of the 3803 switch card connector; the P1B-1D pins of the P1B-D columns are connected with the No. 21 pin of the 3803 switch card connector; the P1B-1E pins of the P1B-E columns are connected with the No. 3 pin of the 3803 switch card connector; the P1B-1F pins of the P1B-F columns are connected with the No. 22 pin of the 3803 switch card connector;

Line 2: the P1B-2A pin of the P1B-A column is connected with the No. 4 pin of the 3803 switch card connector; the P1B-2B pins of the P1B-B columns are connected with the No. 23 pin of the 3803 switch card connector; the P1B-2C pins of the P1B-C columns are connected with the No. 5 pin of the 3803 switch card connector; the P1B-2D pins of the P1B-D columns are connected with the No. 24 pin of the 3803 switch card connector; the P1B-2E pins of the P1B-E columns are connected with the No. 6 pin of the 3803 switch card connector; the pins P1B-2F of the P1B-F columns are connected with the pin 25 of the 3803 switch card connector;

Line 3: the pin P1B-3A of the P1B-A column is connected with the pin 7 of the 3803 switch card connector; the P1B-3B pins of the P1B-B columns are connected with the No. 26 pin of the 3803 switch card connector; the P1B-3C pins of the P1B-C columns are connected with the No. 8 pin of the 3803 switch card connector; the P1B-3D pins of the P1B-D columns connect 3803 the No. 27 pin of the switch card connector; the pins P1B-3E of the P1B-E columns are connected with the pin 10 of the 3803 switch card connector; the pins P1B-3F of the P1B-F columns are connected with pin 29 of the 3803 switch card connector;

Line 4: the P1B-4A pin of the P1B-A column is connected with the No. 11 pin of the 3803 switch card connector; the pins P1B-4B of the P1B-B columns are connected with the pin No. 30 of the 3803 switch card connector; the P1B-4C pins of the P1B-C columns are connected with the No. 12 pin of the 3803 switch card connector; the P1B-4D pins of the P1B-D columns are connected with the No. 31 pin of the 3803 switch card connector; the pins P1B-4E of the P1B-E columns are connected with the pin 13 of the 3803 switch card connector; the pins P1B-4F of the P1B-F columns are connected with the pin 32 of the 3803 switch card connector;

line 5: the pin P1B-5A of the P1B-A column is connected with the pin No. 14 of the 3803 switch card connector; the pins P1B-5B of the P1B-B columns are connected with the pin 33 of the 3803 switch card connector; the pins P1B-5C of the P1B-C columns are connected with the pin 15 of the 3803 switch card connector; the P1B-5D pins of the P1B-D columns are connected with the 34-number pin of the 3803 switch card connector; the pins P1B-5E of the P1B-E columns are connected with the pin 16 of the 3803 switch card connector; the pins P1B-5F of the P1B-F columns are connected with the pin 35 of the 3803 switch card connector;

line 6: the pin P1B-6A of the P1B-A column is connected with the pin 17 of the 3803 switch card connector; the P1B-6B pins of the P1B-B columns are connected with the 36-number pin of the 3803 switch card connector; the P1B-6C pins of the P1B-C columns are connected with the No. 9 pin of the 3803 switch card connector; the P1B-6D pins of the P1B-D columns are connected with the No. 28 pin of the 3803 switch card connector; the P1B-6E pins of the P1B-E columns are connected with the 18-number pin of the 3803 switch card connector; the pins P1B-6F of the P1B-F columns are connected with the pin 37 of the 3803 switch card connector;

Line 7: the P1B-7A pin of the P1B-A column is connected with the 34-number pin of the 3801 switch card connector; the pins P1B-7B of the P1B-B columns are connected with the pin 33 of the 3801 switch card connector; the P1B-7C pins of the P1B-C columns are connected with the 32-number pin of the 3801 switch card connector; the P1B-7D pins of the P1B-D columns connect 3801 the number 31 pin of the switch card connector; the pins P1B-7E of the P1B-E columns are connected with the pin No. 30 of the 3801 switch card connector; the P1B-7F pins of the P1B-F columns connect 3801 to pin 29 of the switch card connector;

Line 8: the P1B-8A pin of the P1B-A column is connected with the No. 28 pin of the 3801 switch card connector; the P1B-8B pins of the P1B-B columns are connected with the No. 27 pin of the 3801 switch card connector; the P1B-8C pins of the P1B-C columns are connected with the No. 26 pin of the 3801 switch card connector; the P1B-8D pins of the P1B-D columns connect 3801 the 25-pin of the switch card connector; the P1B-8E pins of the P1B-E columns are connected with the No. 24 pin of the 3801 switch card connector; the pins P1B-8F of the P1B-F columns are connected with the pin 23 of the 3801 switch card connector;

Line 9: the P1B-9A pin of the P1B-A column is connected with the No. 22 pin of the 3801 switch card connector; the pins P1B-9B of the P1B-B columns are connected with the pin 21 of the 3801 switch card connector; the pins P1B-9C of the P1B-C columns are connected with the pin No. 20 of the 3801 switch card connector; the P1B-9D pins of the P1B-D columns connect 3801 the 19 th pin of the switch card connector; the P1B-9E pins of the P1B-E columns are connected with the 18-number pin of the 3801 switch card connector; the pins P1B-9F of the P1B-F columns connect 3801 to pin 17 of the switch card connector;

Line 10: the P1B-10A pin of the P1B-A column is connected with the No. 16 pin of the 3801 switch card connector; the P1B-10B pins of the P1B-B columns are connected with the No. 15 pin 3801 switch card connector; the P1B-10C pins of the P1B-C columns are connected with the No. 14 pin of the 3801 switch card connector; the P1B-10D pins of the P1B-D columns connect 3801 the No. 13 pin of the switch card connector; the pins P1B-10E of the P1B-E columns are connected with the pin 12 of the 3801 switch card connector; the pins P1B-10F of the P1B-F columns connect 3801 to pin 11 of the switch card connector;

Line 11: the pin P1B-11A of the P1B-A column is connected with the pin No. 10 of the 3801 switch card connector; the pins P1B-11B of the P1B-B columns are connected with the pin 9 of the 3801 switch card connector; the pins P1B-11C of the P1B-C columns are connected with the pin 8 of the 3801 switch card connector; the pins P1B-11D of the P1B-D columns connect 3801 to pin 7 of the switch card connector; the pins P1B-11E of the P1B-E columns are connected with the pin No. 6 of the 3801 switch card connector; the pins P1B-11F of the P1B-F columns are connected with the pin No. 5 of the 3801 switch card connector;

Line 12: the P1B-12A pin of the P1B-A column is connected with the No.4 pin of the 3801 switch card connector; the P1B-12B pins of the P1B-B columns are connected with the No. 3 pin of the 3801 switch card connector; the pins P1B-12C of the columns P1B-C are connected with the chassis ground; the pins P1B-12D of the P1B-D columns are connected with the pin 7 of the VPC-DY connector; suspending pins P1B-12E of the columns P1B-E for standby; suspending pins P1B-12F of the columns P1B-F for standby;

Line 13: the P1B-13A pin of the P1B-A column is connected with the No. 2 pin of the VPC-115 connector; the pins P1B-13B of the P1B-B columns are connected with the pin No. 2 of the VPC-115 connector; suspending pins P1B-13C of the columns P1B-C for standby; the pins P1B-13D of the P1B-D columns are connected with the pin 1 of the VPC-DY connector; the pins P1B-13E of the P1B-E columns are connected with the pin 3 of the VPC-DY connector; the pins P1B-13F of the P1B-F columns are connected with the pin 4 of the VPC-DY connector;

4. The automatic receiver testing device for an on-board vhf navigation system according to claim 1, wherein the connection relationship between the ARINC429 card connector and the JP-SW connector is summarized as follows:

5. The automatic receiver testing device for an on-board vhf navigation system according to claim 1, wherein the connection relationship between the 3801 switch card connector and the 4461 audio card is summarized as follows:

3801 switch card connector 37 pin connects 4461 pin 2 of audio card channel AO 1; 3801 switch card connector 38 pin connects 4461 pin 2 of audio card channel AI 1; 3801 switch card connector 39 pin connects 4461 pin 1 of audio card channel AO 1; 3801 switch card connector pin 40 connects pin 1 of 4461 audio card channel AI 1; 3801 switch card connector 41 pin connects 4461 pin 2 of audio card channel AO 0; 3801 switch card connector pin 42 connects pin 2 of 4461 audio card channel AI 0; 3801 switch card connector 43 pin connects 4461 pin 1 of audio card channel AO 0; 3801 switch card connector 44 pin connects 4461 pin 1 of audio card channel AI 0;

6. The automatic test equipment of an onboard vhf navigation system receiver of claim 1, wherein the connection relationship between the JB-SW connector and the 3802 switch card connector is summarized as follows:

7. The automatic testing device for the receiver of the onboard very high frequency navigation system according to claim 1, wherein twelve relays K1 to K12 are arranged on the RIB board, and the connection relation of the twelve relays is summarized as follows:

The pins 1 of the relays K1 to K8 are all connected to the pin 8 of the KG-DY connector; the No. 3 pins of the relays K1 to K8 are respectively connected to the No. 16 pin, the No. 25 pin, the No. 17 pin, the No. 24 pin, the No. 14 pin, the No. 23 pin, the No. 15 pin and the No. 22 pin of the WJ-429 connector; the No. 4 pins of the relays K1 to K8 are respectively connected to the No. 16 pin, the No. 25 pin, the No. 17 pin, the No. 24 pin, the No. 14 pin, the No. 23 pin, the No. 15 pin and the No. 22 pin of the VPC-429 connector; the No. 5 pins of the relays K1 to K8 are respectively connected to the No. 9 pin, the No. 29 pin, the No. 13 pin, the No. 25 pin, the No. 1 pin, the No. 21 pin, the No. 5 pin and the No. 17 pin of the JP-SW connector; the 8-numbered pins of the relays K1 to K8 are respectively connected to the 11-numbered pin, the 31-numbered pin, the 15-numbered pin, the 27-numbered pin, the 3-numbered pin, the 23-numbered pin, the 7-numbered pin and the 19-numbered pin of the JP-SW connector; the No. 9 pins of the relays K1 to K8 are respectively connected to the No. 4 pin, the No. 13 pin, the No. 5 pin, the No. 12 pin, the No. 2 pin, the No. 11 pin, the No. 3 pin and the No. 10 pin of the VPC-429 connector; the No. 10 pins of the relays K1 to K8 are respectively connected to the No. 4 pin, the No. 13 pin, the No. 5 pin, the No. 12 pin, the No. 2 pin, the No. 11 pin, the No. 3 pin and the No. 10 pin of the WJ-429 connector; the 12-number pins of the relays K1 to K8 are respectively connected to the 32-number pin, the 42-number pin, the 34-number pin, the 40-number pin, the 28-number pin, the 38-number pin, the 30-number pin and the 36-number pin of the JP-SW connector;

The No. 4 pin, the No. 6 pin, the No. 8 pin, the No. 10 pin, the No. 12 pin, the No. 14 pin, the No. 16 pin, the No. 18 pin, the No. 20 pin, the No. 22 pin, the No. 24 pin and the No. 26 pin of the JP-SW connector are all connected to the No. 19 pin of the VPC-429 connector, wherein the No. 26 pin, the No. 18 pin, the No. 24 pin, the No. 16 pin, the No. 22 pin, the No. 14 pin, the No. 20 pin and the No. 12 pin of the JP-SW connector respectively form a single-pole double-throw switch with the No. 12 pins of the relays K1 to K8 through 3801 switch cards;