CN107992385A - A kind of portable general airborne-bus test device - Google Patents

Abstract

The invention belongs to the testing technology of electronic equipment, and relates to a portable universal airborne bus testing device. It is characterized in that it includes a housing, a main control module (1), a data transceiver module (2), a logic control module (3), a storage module (4), a power supply module (5), a human-computer interaction module (6) and Bus interface module (7). The present invention proposes a portable universal airborne bus test device, which greatly simplifies the detection procedure and improves work efficiency; omits the manual analysis process of the detected bus data, and realizes the direct interpretation and entry of the detected bus data, It eliminates the errors caused by human factors and ensures the reliability of the test results; it reduces the size and weight, is easy to carry, and meets the needs of field testing and troubleshooting.

Description

A Portable Universal Airborne Bus Test Device

technical field

The invention belongs to the testing technology of electronic equipment, and relates to a portable universal airborne bus testing device.

Background technique

With the continuous development of helicopter integrated avionics technology, various buses such as ARINC429, 1553B, and AFDX have been continuously applied, which has greatly improved the communication performance of aviation computer networks. In order to ensure the reliability of communication between systems, it is necessary to detect various bus signals during the power-on inspection of the helicopter assembly. At present, when testing various bus data at the assembly site, each bus form is equipped with a special test equipment. Such as 429 bus analyzer, 1553B bus analyzer, AFDX network tester, etc. The disadvantages of this detection method are: first, due to the different operation methods of each device and the inconsistency of the human-computer interaction interface, the detection operation is complicated and the work efficiency is low. Second, most of the data detected by this type of bus test equipment is the source code value. For the helicopter bus data test, it needs to be manually analyzed according to the bus interface protocol (ICD), which is not convenient for workers to interpret and input data, and human factors are likely to lead to large The error of the result brings more unfavorable factors to the electrification of the final assembly. Third, some bus test equipment adopts industrial computers and PXI/VXI test cases equipped with bus communication boards. It is necessary to develop a bus analyzer in the form of bus communication software in the language environment of the host computer. Such equipment is bulky and difficult to carry , can not meet the needs of field testing and troubleshooting.

Contents of the invention

The purpose of the present invention is: to propose a portable universal airborne bus testing device, so as to simplify the testing procedure and improve work efficiency; The error caused by human factors ensures the reliability of the test results; the size and weight are reduced, and it is easy to carry, meeting the needs of field testing and troubleshooting.

The technical solution of the present invention is: a portable universal airborne bus test device, characterized in that it includes a housing, a main control module 1, a data transceiver module 2, a logic control module 3, a storage module 4, a power supply module 5, a human Machine interaction module 6 and bus interface module 7; main control module 1 is connected with logic control module 3 and storage module 4 through local bus, data transceiver module 2 is connected with logic control module 3 and bus interface module 7 through local bus, and stores The module 4 is connected with the human-computer interaction module 6 through the local bus, the power supply module 5 supplies power for the main control module 1, the data transceiver module 2, the logic control module 3, the storage module 4, the power supply module 5 and the human-computer interaction module 6, and the human-machine The interactive module 6 has an input keyboard and a display, and the bus interface module 7 has ARINC429, 1553B and AFDX bus interfaces connected to the electronic equipment under test; the bus interface module 7 is cross-linked with the bus interface connected to the electronic equipment under test, and receives the The bus data of the electronic equipment, after the data format is changed by the data transceiver module 2, is input to the logic control module 3 for bus information matching to obtain the bus data to be tested, and the bus data to be tested is input to the main control module 1 for data processing to obtain the test result data The data storage is realized through the storage module 4, and the human-computer interaction is realized through the human-computer interaction module 6.

The advantages of the present invention are: a portable universal airborne bus test device is proposed, which greatly simplifies the detection procedure and improves work efficiency; omits the manual analysis process of the detected bus data, and realizes the direct detection of the detected bus data. Interpretation and input eliminate errors caused by human factors and ensure the reliability of test results; the size and weight are reduced, making it easy to carry and meeting the needs of field testing and troubleshooting.

Description of drawings

Fig. 1 is a structural principle block diagram of the present invention.

Detailed ways

The present invention will be described in further detail below. Referring to Fig. 1, a portable universal airborne bus test device is characterized in that it includes a housing, a main control module 1, a data transceiver module 2, a logic control module 3, a storage module 4, a power supply module 5, and a human-computer interaction module 6 and the bus interface module 7; the main control module 1 is connected with the logic control module 3 and the storage module 4 through the local bus, the data transceiver module 2 is connected with the logic control module 3 and the bus interface module 7 through the local bus, and the storage module 4 is connected through the local bus The local bus is connected to the human-computer interaction module 6, the power supply module 5 is the main control module 1, the data transceiver module 2, the logic control module 3, the storage module 4, the power supply module 5 and the human-computer interaction module 6 supply power, and the human-computer interaction module 6 With an input keyboard and a display, the bus interface module 7 has ARINC429, 1553B and AFDX bus interfaces connected to the electronic equipment under test; the bus interface module 7 is cross-linked with the bus interface connected to the electronic equipment under test, and receives the The bus data, after the data format is changed by the data transceiver module 2, is input to the logic control module 3 for bus information matching, and the bus data to be tested is obtained, and the bus data to be tested is input to the main control module 1 for data processing, and the test result data is obtained. Module 4 realizes data storage, and realizes human-computer interaction through human-computer interaction module 6 .

The present invention abandons the composition mode of industrial computer, PXI chassis, and bus board, adopts the embedded integrated design idea, and integrates the main control chip, Ethernet control chip, protocol chip, etc. required by each bus into one main control module, Using programmable logic devices and digital signal processing integrated circuits, according to the transmission and reception characteristics of each bus, configure corresponding data transmission and reception modules, logic control modules, storage modules, power supply modules and other hardware resources, and place them in a small configuration box. The touch screen is used as a human-computer interaction interface to form a portable universal airborne bus test device. The device has standard ARINC429, 1553B, and AFDX bus interfaces, which can be connected to the finished bus interface of the helicopter. Realize the test of various bus data.

The main control module 1 integrates a DSP chip, an Ethernet control chip, a protocol chip and a clock chip, and is the control core of the bus testing device, and completes data processing and protocol analysis of various bus signals.

The data transceiver module 2 includes a bus transmitter, a bus receiver and a bus driver, and completes the receiving and sending processing of various bus signals; when receiving bus signals, the bus data is converted into the data format required by the machine through voltage conversion; When sending the bus signal, the data format processed by the machine is converted into the same bus format as the bus network of the electronic device under test.

The logic control module 3 implements bus address decoding and logic control functions, can identify or generate information words and messages matching each bus, and realizes information exchange with the main control module 1 .

The storage module 4 is used for collecting and storing data of each bus for high-speed data processing of the main control module, and has a storage bus interface protocol (ICD) configuration function.

The human-computer interaction module integrates a single-chip microcomputer, a liquid crystal display, and an on-screen touch keyboard. The single-chip microcomputer continuously scans its memory data for processing, and refreshes the display content on the screen. The input keyboard is an on-screen touch keyboard, and data input is realized through the screen touch keyboard to complete the human-computer interaction function.

The power module has a built-in lithium battery and an external regulated DC power interface. That is, it can supply power by itself, or an external power supply can provide working voltage for each functional module in the system through the voltage conversion module. The power module has an overcurrent protection function, and each power supply circuit is isolated from each other.

The bus interfaces are standard ARINC429, 1553B, and AFDX bus interfaces. Connect with the corresponding bus interface of the on-board finished product through the bus cable.

The box body is made of aluminum alloy integrated chassis, and the outer surface is sandblasted and black anodized, which is beautiful and durable. The chassis is divided into two parts, the box body and the box cover. The above-mentioned functional modules are installed in the box, and a touch screen is embedded in the box cover. In order to prevent the failure of the power module from affecting other modules in the box, an installation compartment (baffle) is specially set up to isolate the battery from other circuit components.

According to an embodiment of the present invention, the trial proves that the device is convenient to carry, has a unified human-computer interaction interface, and can realize detection of ARINC429, 1553B, and AFDX bus data on one device. It makes the helicopter bus detection more scientific and systematic, and the test results are more accurate and reliable, which effectively improves the work efficiency and meets the needs of helicopter field bus testing and troubleshooting.

Claims (8)

1. A kind of 1. portable general airborne-bus test device, it is characterised in that：It includes housing, main control module (1), data and receives Send out module (2), Logic control module (3), memory module (4), power module (5), human-computer interaction module (6) and bus interface mould Block (7)；Main control module (1) is connected by local bus with Logic control module (3) and memory module (4), data transmit-receive module (2) it is connected by local bus with Logic control module (3) and bus interface module (7), memory module (4) passes through local bus It is connected with human-computer interaction module (6), power module (5) is main control module (1), data transmit-receive module (2), Logic control module (3), memory module (4), power module (5) and human-computer interaction module (6) power supply, human-computer interaction module (6) is with input keyboard And display, bus interface module (7) carry ARINC429,1553B and AFDX bus interface being connected with tested electronic equipment； The bus interface crosslinking that bus interface module (7) is connected with tested electronic equipment, receives the bus data of tested electronic equipment, warp After data transmit-receive module (2) change data form, input logic control module (3) carries out bus message matching, obtains to be measured total Line number evidence, carries out data processing by bus data to be measured input main control module (1), test result data is obtained, by storing mould Block (4) realizes that data store, and human-computer interaction is realized by human-computer interaction module (6).
2. 2. portable general airborne-bus test device according to claim 1, it is characterised in that：The main control module (1) dsp chip, ethernet control chip, protocol chip and clock chip are integrated with, is the control core of bus test device The heart, completes the data processing to all kinds of bus signals and protocol analysis.
3. 3. portable general airborne-bus test device according to claim 1 or 2, it is characterised in that：Data transmit-receive mould Block (2) includes bus transmitter, bus receiver and bus driver, completes at the reception and transmission to all kinds of bus signals Reason；When receiving bus signals, bus data is converted into the data format of the machine processing needs by voltage conversion mode；Send During bus signals, the data format after the machine is handled, is converted into the bus lattice identical with the bus network of tested electronic equipment Formula.
4. 4. portable general airborne-bus test device according to claim 1 or 2, it is characterised in that：The logic Control module (3) realizes the address decoding and logic control function of bus, can identify or generate the information with each bus widening Word and message, realize the information exchange with main control module (1).
5. 5. portable general airborne-bus test device according to claim 3, it is characterised in that：Logic control module (3) address decoding and logic control function of bus are realized, can identify or generate the information word and message with each bus widening, Realize the information exchange with main control module (1).
6. 6. the portable general airborne-bus test device according to claim 1,2 or 5, it is characterised in that：Described is defeated It is screen touch keyboard to enter keyboard.
7. 7. portable general airborne-bus test device according to claim 3, it is characterised in that：The input keyboard It is screen touch keyboard.
8. 8. portable general airborne-bus test device according to claim 4, it is characterised in that：The input keyboard It is screen touch keyboard.