Data management module testing device

Abstract

The utility model discloses a testing device for a data management module. The testing device comprises a testing box, a cable connecting socket, a data management module connecting socket and a storage module connecting socket. The test box is connected with the tested data management module through the data management module connection socket, the spring test pin is connected with the data area welding hole of the data management module and the storage module, and a universal test cable and an industrial personal computer are utilized to carry out omnibearing test on the spare part board.

Description

Technical Field

[0001] This utility model relates to the field of avionics equipment testing, and in particular to a data management module testing device. Background Technology

[0002] The flight parameter recorder receives various data from the data acquisition unit on board and is an important onboard device. The data management module plays a crucial role in the recorder. However, because the spare part board for the data management module of a certain type of recorder does not include the cable assembly connecting the storage components during production, the testing can only determine whether the data management module is starting and operating normally through test points. However, it is impossible to test the recording, uploading, downloading, and erasing functions of data types such as flight data, voice data, and cockpit voice data. This makes it impossible to fully verify the functionality of the spare part board, and the produced data management spare part board has the risk of potential quality defects. Utility Model Content

[0003] Purpose of this utility model: To ensure the quality and reliability of the data management module, comprehensive testing is required. This invention proposes an efficient and comprehensive testing device for the data management module to perform functional, performance, and stability tests. The aim of this innovation is to address the shortcomings of existing testing methods, which are often incomplete and insufficient, thereby eliminating potential quality issues and improving the quality and reliability of the data management module.

[0004] Technical solution:

[0005] A data management module testing device includes: a test box, a cable connection socket, a data management module connection socket, a spring test probe, and a storage module socket;

[0006] The test box is connected to a computer and a 28V DC power supply via a cable connector socket;

[0007] The test box is connected to the data management module under test via a data management module connection socket.

[0008] The data management module under test is connected to a spring test probe, which is connected to a storage module socket via a cable. The storage module is then plugged into the storage module socket.

[0009] Furthermore, the test box contains a DC / DC module; one end of the DC / DC module is connected to a 28V power supply, and the DC / DC module converts the 28V power supply to a 5V power supply, while the other end of the DC / DC module is connected to the positive terminal of the power input of the spring test probe.

[0010] Furthermore, the test box is also equipped with a data transmission channel, one end of which is connected to the positive and negative output terminals of the computer.

[0011] The other end of the data transmission channel connects to the positive and negative input terminals of the data management module and the connection socket.

[0012] Furthermore, the test box is also equipped with an information printing channel, one end of which is connected to the positive and negative terminals of the computer's information printing output.

[0013] The other end of the information printing channel is connected to the positive and negative terminals of the data management module socket.

[0014] Furthermore, the test box is also equipped with a clock signal; one end of the clock signal is connected to the clock output of the computer, and the other end is connected to the clock output of the data management module.

[0015] Furthermore, the test box is also equipped with a light-emitting diode (LED), with the anode of the LED connected to the positive terminal of the 3.3V power input and the cathode of the LED grounded.

[0016] The anode of the light-emitting diode is also connected to a pull-up resistor and a pull-down resistor respectively;

[0017] The LED color can be controlled to be red or green by connecting it with a pull-up resistor or a pull-down resistor;

[0018] The data management module provides a low or high validity signal based on whether its own status is normal.

[0019] When the active signal is low, the data management module is normal and the pull-down resistor is connected; when the active signal is high, the data management module is abnormal and the pull-up resistor is connected.

[0020] Beneficial effects:

[0021] A testing device for a data management module is proposed. The device connects the data management module under test via a test box, connecting wires, and a spring test probe, offering the following advantages:

[0022] (1) Easy to operate. When using this testing device to test products, clamp the data tube module onto the fixture with the spring test probe, connect the storage component, and you can test it as a whole piece recorder, improving testing efficiency by 300%.

[0023] (2) Comprehensive performance testing of the logarithmic data management module. Due to the connection of the storage component, the logarithmic data management module was comprehensively tested for its functions of uploading, downloading, and erasing flight, voice, cabin voice, and backup flight data under normal high and low temperature conditions, without missing any test items.

[0024] (3) Improved the quality of spare parts boards, which to some extent reduced the probability of quality problems appearing on the machine. Using this testing equipment, most problems were exposed and dealt with during the high and low temperature tests, thus avoiding the installation of recorder digital tube modules with potential quality problems.

[0025] (4) Improved product safety. When using this testing device, the risk of short circuits and abnormal contact caused by the pins coming out during the original wire-connection test is avoided, and the possibility of product damage caused by human error is avoided. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the connection of a data management module testing device;

[0027] Figure 2 This is a schematic diagram of the test box panel of a data management module testing device;

[0028] Figure 3 This is an electrical connection schematic diagram of a data management module testing device. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings. The present invention provides a data management module testing device, such as... Figure 1 As shown, the system includes a test box, a cable connector, a data management module connector, and a power cable. The test box is connected to the connector, and the connector is connected to the board under test (BUT). The BUT is connected to the test box via the connector, and the test is performed by operating the switches on the test box panel.

[0030] The test box includes a data module socket XP1, a storage module socket XP2, a cable connection socket XP3, a power indicator light L1, a spring test probe T1, a base plate P1, and a built-in power module D1.

[0031] Example: The cable connector XP3 on the data management test device is connected to the PC and DC regulated power supply via a test cable. The data management module under test is connected to the data module connector XP1. The spring test pin T1 is connected to the solder hole of the data area of ​​the data management module under test. The spring test pin T1 is connected to the storage module connector XP2 via a lead wire. When the spring test pin contacts the solder hole of the data area of ​​the data management module, the storage component connected to the storage module connector is directly connected to the data area.

[0032] When the data management module under test is connected to the data management module socket XP1, it is powered by the power switch on the 28V DC power supply, providing a 28V voltage input to the test box. An external DC power supply provides 28V power to the built-in power module D1 of the test box. After voltage conversion, the built-in power module provides a filtered 5V operating voltage, which is then input to the data management module through socket XP1. One end of the clock signal inside the test device is connected to the clock output of the computer, and the other end is connected to the clock output of the data management module. One end of the data transmission channel inside the test box is connected to the positive and negative data output terminals of the computer, and the other end is connected to the positive and negative data input terminals of the data management module's socket. Using a standard test cable and an industrial computer, this spare board can be tested comprehensively.

[0033] The positive terminal of power indicator L1 is connected to the positive terminal of the 3.3V power input, and the negative terminal is grounded. The positive terminal of power indicator L1 is connected to pull-up and pull-down resistors, which control the red and green signals. When the data management module under test malfunctions, it provides a fault signal to the power module (high level), and power indicator L1 emits red light. When the data management module is functioning normally, it provides a normal signal to the power module (low level), and power indicator L1 emits green light. Use the corresponding test software on the PC to perform a comprehensive performance test of the data management module. Test the upload, download, and erase functions for flight, voice, cockpit voice, and backup flight data.

[0034] When the XP3 cable connector on the data management test device is connected to a PC via a test cable, one end of the information printing channel inside the test device is connected to the positive and negative terminals of the computer's information printing output; the other end of the information printing channel is connected to the positive and negative terminals of the data management module socket's information printing output. The operating status information of the data management module can be printed to the computer via a RS-232 serial port, facilitating fault analysis and troubleshooting.

Claims

1. A data management module testing device, characterized in that: The device includes: a test box, a cable connection socket, a data management module connection socket, a spring test probe, and a storage module socket; The test box is connected to a computer and a 28V DC power supply via a cable connector socket; The test box connects to the data management module under test via a data management module connection socket. The data management module under test is connected to a spring test probe, which is connected to a storage module socket via a cable. The storage module is then plugged into the storage module socket.

2. The apparatus according to claim 1, characterized in that: The test box contains a DC / DC module; one end of the DC / DC module is connected to a 28V power supply, and the DC / DC module converts the 28V power supply to a 5V power supply; the other end of the DC / DC module is connected to the positive power input terminal of the spring test probe.

3. The apparatus according to claim 2, characterized in that: The test box also contains a data transmission channel, one end of which is connected to the positive and negative output terminals of the computer. The other end of the data transmission channel connects to the positive and negative input terminals of the data management module and the connection socket.

4. The apparatus according to claim 3, characterized in that: The test box also has an information printing channel, one end of which is connected to the positive and negative terminals of the computer's information printing output. The other end of the information printing channel is connected to the positive and negative terminals of the data management module socket.

5. The apparatus according to claim 4, characterized in that: The test box also contains a clock signal; one end of the clock signal is connected to the clock output of the computer, and the other end is connected to the clock output of the data management module.

6. The apparatus according to claim 5, characterized in that: The test box is also equipped with a light-emitting diode (LED). The anode of the LED is connected to the positive terminal of the 3.3V power input, and the cathode of the LED is grounded. The anode of the light-emitting diode is also connected to a pull-up resistor and a pull-down resistor respectively; The LED color can be controlled to be red or green by connecting it with a pull-up resistor or a pull-down resistor; The data management module provides a low or high validity signal based on whether its own status is normal. When the active signal is low, the data management module is normal and the pull-down resistor is connected; when the active signal is high, the data management module is abnormal and the pull-up resistor is connected.

Images