CN105752359A - Airborne photoelectric pod detector - Google Patents

Abstract

The invention discloses an airborne photoelectric pod detector. The airborne photoelectric pod detector comprises a motor signal analyzing and processing module (1), an analog quantity module (2), an ARINC429 module (3), a discrete magnitude module (4), a video acquisition module (5), a video processing module (6), an RS422 module (7), a built-in bus (8), a reserved upgrade interface (9), product detection software (10), a 28V power module (11), a computer platform (12), an external detection interface (13), a site power source (14), a detection cable (15), an operation handle (16) and a metering interface (17). The airborne photoelectric pod detector is capable of subjecting an airborne photoelectric pod to one-machine isolation power-on inspection, verification before installing and fault localization.

Description

An airborne photoelectric pod detection device

technical field

The invention belongs to the field of airborne radio equipment, in particular to an airborne radio altimeter tester.

Background technique

At present, the verification work of domestic aircraft airborne photoelectric pod products before installation is usually carried out by the method of system joint test. The system joint test needs to prepare the airborne photoelectric pod intersecting and connecting airborne equipment as test conditions, and the verification risk is extremely high. High, once a fault occurs, it is difficult to accurately locate the fault, and it is necessary to replace various airborne products and re-test. Moreover, this method can only detect the functional test of the airborne photoelectric pod, but cannot detect the performance of the airborne photoelectric pod, resulting in some performance failures of the airborne photoelectric pod that cannot be found in the calibration work before installation. This will restrict the progress of final assembly and test flight.

Contents of the invention

The invention overcomes the deficiencies of the prior art, provides an airborne photoelectric pod detection device, and realizes the purposes of isolation and power-on inspection, pre-installation calibration and fault location of the aircraft airborne photoelectric pod.

Considering the above-mentioned problems of the prior art, according to one aspect disclosed by the present invention, the present invention adopts the following technical solutions:

The airborne photoelectric pod detection device uses the PXI measurement and control computer as the test and development platform, and is equipped with necessary power supply modules, bus communication modules, AD modules, digital IO modules, video acquisition modules and other test resource modules to form a complete test system. Realize the power consumption management of the airborne photoelectric pod by the detection device, the analysis of control command input and feedback communication information, the input of test simulation excitation and the collection of combined logic signals output by the photoelectric pod, and by calling the software residing in the computer The test module and test process complete the test simulation and analysis processing in various detection modes, and realize the fault diagnosis of the airborne photoelectric pod. The monitor provides friendly human-computer interaction in the form of a display test interface, the test results and necessary information are displayed on the test interface, and the relevant test information can be stored in the computer for the operator to view and for the printer to output and print.

The airborne photoelectric pod detection device of the present invention can realize the following functions:

1) It can simulate the task processor to communicate with the airborne photoelectric pod through the 429 bus, and control and display the state of the airborne photoelectric pod;

2) Able to monitor the 422 information exchange between the airborne photoelectric pod and its sensors;

3) It can simulate the avionics launch board to complete the AAP switch control of the airborne photoelectric pod;

4) The 4-way differential video screen output by the airborne photoelectric pod can be displayed on the detection device;

5) Capable of collecting, displaying, compressing and storing video signals;

6) It can have the function of separately detecting the photoelectric turret and control handle in the airborne photoelectric pod;

7) It can detect the output signal of the detection port of the system;

8) It can provide the working voltage and power control management of the airborne photoelectric pod;

9) It can record important data and parameters of the detection process.

Description of drawings

Figure 1 shows a block diagram of the working principle of the airborne photoelectric pod detection device.

Among them, 1-motor signal analysis and processing module, 2-analog module, 3-ARINC429 module, 4-discrete module, 5-video acquisition module, 6-video processing module, 7-RS422 module, 8-internal bus ( PXI), 9-reserved upgrade interface, 10-product testing software, 11-28V power module, 12-computer platform, 13-external testing interface, 14-site power supply, 15-testing cable, 16-control handle, 17- metering interface.

detailed description

The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

Referring to accompanying drawing 1, a kind of airborne photoelectric pod detection device of the present invention, by motor signal analysis processing module (1), analog quantity module (2), ARINC429 module (3), discrete quantity module (4), video acquisition Module (5), video processing module (6), RS422 module (7), internal bus (8), reserved upgrade interface (9), product testing software (10), 28V power supply module (11), computer platform ( 12), external detection interface (13), site power supply (14), detection cable (15), control handle (16) and metering interface (17);

Among them, the internal bus (8) is respectively connected with the motor signal analysis and processing module (1), the analog module (2), the ARINC429 module (3), the discrete module (4), the video acquisition module (5), and the video processing module ( 6), RS422 module (7), reserved upgrade interface (9), product detection software (10), 28V power supply module (11), computer platform (12) connection; computer platform (12) and external detection interface (13) connected; the external detection interface (13) is respectively connected with the site power supply (14), the detection cable (15), the control handle (16) and the metering interface (17);

The motor signal analysis and processing module (1) is used to collect and process the 4-way PWM pulse output by the detection port of the airborne photoelectric pod, and display the frequency and duty cycle of the pulse on the product detection software (10);

The analog quantity module (2) is used to simulate and provide the analog quantity excitation required for the work of the airborne photoelectric pod and collect and process the analog signal output by the airborne photoelectric pod. The analog quantity module (2) is used to collect the The analog signal output by the detection port of the cabin;

ARINC429 module (3), used to simulate the ARINC429 bus channel test of the airborne photoelectric pod, simulate the communication process between the 429 bus and the airborne photoelectric pod, send command words to the airborne photoelectric pod, and receive the onboard photoelectric pod at the same time The status word returned by the pod is analyzed and displayed, and the function detection and control function of the airborne photoelectric pod is completed;

Discrete quantity module (4), is used for collecting the TTL signal that airborne photoelectric pod outputs;

The video acquisition module (5) and the video processing module (6) collect and display the 4-way composite video signal output by the airborne photoelectric pod on the product detection software (10), and compress and store the 4-way composite video signal, Complete the processing of the video signal output by the airborne photoelectric pod;

The RS422 module (7) is used to realize the information exchange between the airborne photoelectric pod and the monitoring sensor inside the airborne photoelectric pod;

The internal bus (8) is inserted into the bus chassis, and the airborne photoelectric pod detection device is connected to the internal bus (8) by running the product detection software (10) under the dispatch of the motor signal analysis and processing module (1). The use, allocation and management of each module to complete various test tasks;

The upgrade interface (9) is reserved to provide reserved interfaces for other test functions of the airborne photoelectric pod detection device;

Product inspection software (10), with functions of self-inspection, function test, test data recording and help;

The 28V power supply module (11) provides the 28V power supply required for the normal operation of the airborne photoelectric pod detection device and the airborne photoelectric pod;

The computer platform (12) provides a working environment for the product testing software (10);

The external detection interface (13) enables the airborne photoelectric pod detection device to be connected with the airborne photoelectric pod through a detection cable (15);

The site power supply (14) provides 220V AC power supply to the external detection interface (13);

Control handle (16), controls the test work of airborne photoelectric pod;

The measurement interface (17) provides a portable interface for measurement detection for the airborne photoelectric pod detection device.

Claims (1)

1. An airborne photoelectric pod detection device, consisting of a motor signal analysis and processing module (1), an analog module (2), an ARINC429 module (3), a discrete module (4), a video acquisition module (5), a video Processing module (6), RS422 module (7), internal bus (8), reserved upgrade interface (9), product testing software (10), 28V power supply module (11), computer platform (12), external testing interface (13), site power supply (14), detection cable (15), control handle (16) and metering interface (17); Among them, the internal bus (8) is respectively connected with the motor signal analysis and processing module (1), the analog module (2), the ARINC429 module (3), the discrete module (4), the video acquisition module (5), and the video processing module ( 6), RS422 module (7), reserved upgrade interface (9), product detection software (10), 28V power supply module (11), computer platform (12) connection; computer platform (12) and external detection interface (13) connected; the external detection interface (13) is respectively connected with the site power supply (14), the detection cable (15), the control handle (16) and the metering interface (17); The motor signal analysis and processing module (1) is used to collect and process the 4-way PWM pulse output by the detection port of the airborne photoelectric pod, and display the frequency and duty cycle of the pulse on the product detection software (10); The analog quantity module (2) is used to simulate and provide the analog quantity excitation required for the work of the airborne photoelectric pod and collect and process the analog signal output by the airborne photoelectric pod. The analog quantity module (2) is used to collect the The analog signal output by the detection port of the cabin; ARINC429 module (3), used to simulate the ARINC429 bus channel test of the airborne photoelectric pod, simulate the communication process between the 429 bus and the airborne photoelectric pod, send command words to the airborne photoelectric pod, and receive the onboard photoelectric pod at the same time The status word returned by the pod is analyzed and displayed, and the function detection and control function of the airborne photoelectric pod is completed; Discrete quantity module (4), is used for collecting the TTL signal that airborne photoelectric pod outputs; The video acquisition module (5) and the video processing module (6) collect and display the 4-way composite video signal output by the airborne photoelectric pod on the product detection software (10), and compress and store the 4-way composite video signal, Complete the processing of the video signal output by the airborne photoelectric pod; The RS422 module (7) is used to realize the information exchange between the airborne photoelectric pod and the monitoring sensor inside the airborne photoelectric pod; The internal bus (8) is inserted into the bus chassis, and the airborne photoelectric pod detection device is connected to the internal bus (8) by running the product detection software (10) under the dispatch of the motor signal analysis and processing module (1). The use, allocation and management of each module to complete various test tasks; The upgrade interface (9) is reserved to provide reserved interfaces for other test functions of the airborne photoelectric pod detection device; Product inspection software (10), with functions of self-inspection, function test, test data recording and help; The 28V power supply module (11) provides the 28V power supply required for the normal operation of the airborne photoelectric pod detection device and the airborne photoelectric pod; The computer platform (12) provides a working environment for the product testing software (10); The external detection interface (13) enables the airborne photoelectric pod detection device to be connected with the airborne photoelectric pod through a detection cable (15); The site power supply (14) provides 220V AC power supply to the external detection interface (13); Control handle (16), controls the test work of airborne photoelectric pod; The measurement interface (17) provides a portable interface for measurement detection for the airborne photoelectric pod detection device.