Single board test equipment for ground electronic unit

Abstract

The invention relates to a single board test device for a ground electronic unit, which comprises a mother board, a universal meter, an oscilloscope, a transponder and a load, the load, the transponder and the mother board are connected in sequence, the mother board is further connected to a direct current stabilized power supply, and after the mother board is connected with a corresponding board card to be tested, the universal meter and the oscilloscope complete the test; the testing device further comprises a machine cage and an interface expansion board, the mother board is arranged in the machine cage, the interface expansion board is arranged outside the machine cage, and the mother board is connected with a tested board card through the interface expansion board. Compared with the prior art, the interface expansion board is arranged and arranged outside the machine cage, the machine cage can be effectively utilized to improve the consistency of a test site, the test connection problem of an original machine cage scheme is solved, damage to a board card in the personnel test process is reduced, and the problems of mistaken test, mistaken touch and the like of a test point are reduced.

Description

Technical Field

[0001] The present invention relates to a single-board test device, and more particularly to a single-board test device for a ground electronic unit. Background Art

[0002] In the single-board test of the ground electronic unit, power needs to be supplied to the board under test. Among them, there are many types of boards under test, and different types of boards require different power supplies.

[0003] When testing the board under test, it is necessary to measure the output voltage and current of the board under test, as well as the short-circuit test of the board under test, etc. In the prior art, in order to solve problems such as non-standard placement during board testing, some prior arts adopt the method of configuring a chassis to install the motherboard. In this case, if there are many types of boards under test, it will lead to too many interfaces. These interfaces are set inside the chassis, which will face difficulties in wiring and even be easily connected wrongly, thus reducing the efficiency on the one hand and increasing the damage rate of the test link on the other hand. Summary of the Invention

[0004] The purpose of the present invention is to provide a single-board test device for a ground electronic unit. By setting an interface expansion board and placing it outside the chassis, the chassis can be effectively utilized to improve the consistency of the test site, and solve the test connection problem of the original chassis scheme, reduce the damage to the board during the test process by personnel, and reduce problems such as mismeasurement and accidental touch of the test points.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A single-board test device for a ground electronic unit includes a motherboard, a multimeter, an oscilloscope, a transponder, and a load. The load, the transponder, and the motherboard are connected in sequence. The motherboard is also connected to a DC regulated power supply. After the motherboard is connected to the corresponding board under test, the test is completed by the multimeter and the oscilloscope.

[0007] The test device further includes a chassis and an interface expansion board. The motherboard is placed inside the chassis, and the interface expansion board is placed outside the chassis. The motherboard is connected to the board under test through the interface expansion board.

[0008] The test device further includes an XCM lightning protection board, which is arranged between the motherboard and the transponder, and between the motherboard and the DC regulated power supply.

[0009] The XCM lightning protection board is located inside the chassis.

[0010] The transponder is an active transponder.

[0011] Five connectors are provided on the motherboard.

[0012] The connector is a 96-core connector.

[0013] The chassis is provided with a slot for connecting the mother board, and the interface expansion board is inserted into the slot.

[0014] A slide rail for the template to slide is provided inside the chassis.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting an interface expansion board and placing it outside the chassis, the chassis can be effectively utilized to improve the consistency of the test site, solve the test connection problem of the original chassis scheme, reduce damage to the board cards during the personnel testing process, and reduce problems such as mismeasurement and accidental touch of the test points.

[0017] 2. The mother board is connected to the DC regulated power supply to supply power to different DUT (Device Under Test) board cards. For the testing of different DUT board cards, only the corresponding board cards need to be plugged and unplugged, reducing the test time and improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Wherein: 1. Chassis, 2. DUT board card, 3. Multimeter, 4. Oscilloscope, 5. Transponder, 6. Load, 7. DC regulated power supply. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and gives the detailed implementation manners and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0021] A single-board test device for a ground electronic unit, as Figure 1 shown, includes a mother board, a multimeter 3, an oscilloscope 4, a transponder 5 and a load 6. The load 6, the transponder 5 and the mother board are connected in sequence. The mother board is also connected to the DC regulated power supply 7. After the mother board is connected to the corresponding DUT board card 2, the test is completed by the multimeter 3 and the oscilloscope 4;

[0022] The test device further includes a chassis 1 and an interface expansion board. The mother board is placed inside the chassis 1, and the interface expansion board is placed outside the chassis 1. The mother board is connected to the DUT board card 2 through the interface expansion board.

[0023] By setting an interface expansion board and placing it outside the chassis 1, the chassis 1 can be effectively utilized to improve the consistency of the test site, solve the test connection problem of the original chassis 1 scheme, reduce damage to the board cards during the personnel testing process, and reduce problems such as mismeasurement and accidental touch of the test points.

[0024] Moreover, the motherboard is connected to the DC regulated power supply 7 to supply power to different DUT boards 2. For testing different DUT boards 2, only the corresponding boards need to be plugged and unplugged, which reduces the testing time and improves the testing efficiency.

[0025] In most embodiments, the testing device further includes an XCM lightning protection board, which is disposed between the motherboard and the transponder 5, and between the motherboard and the DC regulated power supply 7. In this way, it can have a certain lightning protection testing ability. In addition, in the vast majority of these embodiments, the XCM lightning protection board is located inside the chassis 1, which can improve the cleanliness.

[0026] Generally, the transponder 5 is an active transponder 5, which improves the stability.

[0027] In an embodiment, the motherboard is an LEU motherboard, which is provided with five connectors. The connectors are 96-pin connectors, corresponding to Class 1 C-interface board, Class 2 C-interface board, Class 1 S-interface board, Class 2 S-interface board, and power supply board respectively.

[0028] In some embodiments, the chassis 1 is provided with slots for connecting the motherboard, and the interface expansion board is inserted into the slots. Generally, the motherboard can slide inside the chassis 1 to adjust its position.

[0029] As Figure 1 shown, during testing, the LEU motherboard and the XCM lightning protection board are installed in the chassis 1, and the DC regulated power supply 7 is connected. The motherboard has a total of five 96-pin connectors, corresponding to Class 1 C-interface board, Class 2 C-interface board, Class 1 S-interface board, Class 2 S-interface board, and power supply board respectively. The XCM lightning protection board, as a lightning protection board, takes lightning protection measures for the transmission channel between the motherboard and the active transponder 5, and connects the tail cables between the motherboard and the transponder 5, and between the motherboard and the DC regulated power supply 7. Since the DUT board 2 needs to be powered on for testing, the chassis 1 is connected to the DC regulated power supply 7, and the corresponding DUT board 2 is connected to the corresponding connector. During the testing of the DUT board 2, most of the tests are short-circuit tests of the corresponding circuits, output voltage tests, related circuit tests, etc., which require point-to-point tests with the multimeter 3 and the oscilloscope 4. However, after the DUT board 2 is inserted into the chassis 1, the test leads cannot reach the corresponding points accurately for testing. Therefore, an interface expansion board is added. The motherboard is connected to the corresponding interface expansion board and then to the corresponding DUT board 2, so that the interface expansion board can extend outside the chassis 1 and then connect to the DUT board 2. This method is convenient for testing and ensures the standardization of testing.

Claims

1. A single-board test device for a ground electronic unit, comprising a motherboard, a multimeter, an oscilloscope, a transponder and a load. The load, the transponder and the motherboard are connected in sequence. The motherboard is also connected to a DC regulated power supply. After the motherboard is connected to the board under test, the test is completed by the multimeter and the oscilloscope; It is characterized in that The test equipment further includes a chassis and an interface expansion board. The motherboard is placed inside the chassis, and the interface expansion board is placed outside the chassis. The motherboard is connected to the board under test through the interface expansion board.

2. The single-board test device for a ground electronic unit according to claim 1, characterized in that The test equipment further includes an XCM lightning protection board, which is provided between the motherboard and the transponder, and between the motherboard and the DC regulated power supply.

3. The single-board test device for a ground electronic unit according to claim 2, characterized in that The XCM lightning protection board is located inside the chassis.

4. The single-board test device for a ground electronic unit according to claim 1, characterized in that The transponder is an active transponder.

5. The single-board test device for a ground electronic unit according to claim 1, characterized in that Five connectors are provided on the motherboard.

6. The single-board test device for a ground electronic unit according to claim 5, characterized in that The connector is a 96-pin connector.

7. The single-board test device for a ground electronic unit according to claim 1, characterized in that A slot for connecting the motherboard is provided on the chassis, and the interface expansion board is inserted into the slot.

8. The single-board test device for a ground electronic unit according to claim 1, characterized in that A slide rail for the template to slide is provided inside the chassis.

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