Power distribution control comprehensive tester

Abstract

The utility model relates to the technical field of power distribution control product testing, in particular to a power distribution control comprehensive tester, which comprises an industrial personal computer, a discrete magnitude acquisition module, an interface adapter box, a program control alternating current power supply and a program control direct current power supply. The switch module is formed by combining a plurality of relay boards, the signal conditioning board is connected with a to-be-tested alternating current distribution box and then connected with the discrete magnitude acquisition module, the relay boards are connected with the corresponding to-be-tested distribution box, and the programmable alternating current power supply is connected with the relay boards connected with the to-be-tested alternating current distribution box. The program-controlled direct-current power supply is connected with the relay board connected with the direct-current distribution box to be tested, the port of the distribution box to be tested is connected with the corresponding connecting interface on the bottom plate, the receiving end of the discrete magnitude acquisition module is connected with the connecting interface on the bottom plate, and the output end of the discrete magnitude acquisition module is connected with the industrial personal computer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of distribution control product test technology, and the specific field is a distribution control comprehensive tester. BACKGROUND

[0002] The electric energy generated by the helicopter generator is transmitted to the distribution box installed in the cockpit through the cable, and then the electric energy is controlled by the distribution box to supply power to various electric equipment in the helicopter. The AC distribution control box, the DC distribution control box and the anti-icing distribution box are distributed in different power supply control nodes to realize accurate control of the power supply of the electric equipment on the machine. Currently, the above-mentioned three power distribution and main detection methods are realized by manual detection. However, the traditional test operation has low automaticity and long verification time. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a distribution control comprehensive tester.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a distribution control comprehensive tester, comprising an industrial computer, a discrete quantity acquisition module, an interface adaptation box, a programmed AC power supply and a programmed DC power supply. The interface adaptation box comprises a bottom plate, a signal conditioning plate and a switch module mounted on the bottom plate. The switch module is composed of a plurality of relay boards. The signal conditioning plate is connected to the discrete quantity acquisition module after being connected to the AC distribution box to be tested. The relay board is connected to the corresponding distribution box to be tested. The programmed AC power supply is connected to the relay board connected to the AC distribution box to be tested. The programmed DC power supply is connected to the relay board connected to the DC distribution box to be tested. The control end of the industrial computer is connected to all the relay boards. The control end of the programmed AC power supply and the programmed DC power supply is connected to the industrial computer. The bottom plate is provided with a plurality of connection interfaces. The port of the distribution box to be tested is connected to the corresponding connection interface on the bottom plate. The receiving end of the discrete quantity acquisition module is connected to the connection interface on the bottom plate. The output end of the discrete quantity acquisition module is connected to the industrial computer.

[0005] In some embodiments, the tester further comprises an insulation tester, the detection end of the insulation tester is connected to the relay board, and the output end of the insulation tester is connected to the industrial computer.

[0006] In some embodiments, the industrial computer is provided with a touch control screen.

[0007] In some embodiments, the discrete quantity acquisition module is a discrete quantity acquisition board card.

[0008] Compared with the prior art, the utility model has the advantages that it is used for testing the AC distribution control box, the DC distribution control box and the anti-icing distribution box before installation.

[0009] The verification can be completed according to a fixed procedure, traditional test operation is simplified, the automation degree of finished product verification is improved, the verification time is shortened, and the verification efficiency is improved. The system follows the design concept of generalization, modularization and standardization, is configured with a high degree of general communication interface, can be used for remote control and control by other devices, and reserves space for subsequent integration into unified management of the equipment.

[0010] The details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more clear, simple and easy to understand, and to make the present application more fully described and understood through the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a system connection schematic diagram of the utility model;

[0012] Figure 2 It is a cross-linking relationship principle diagram of the aircraft AC power distribution control box;

[0013] Figure 3 It is a cross-linking relationship principle diagram of the aircraft DC power distribution control box;

[0014] Figure 4 It is a principle block diagram of the helicopter rotor anti-icing system;

[0015] Figure 5 It is a basic principle block diagram of the anti-icing power distribution box;

[0016] Figure 6 It is a test principle diagram of the AC power distribution control box;

[0017] Figure 7 It is a test principle diagram of the DC power distribution control box;

[0018] Figure 8 It is a test principle diagram of the anti-icing power distribution box;

[0019] Figure 9 It is a working cross-linking principle diagram of the interface adapter box. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figure 1The utility model provides a technical scheme: a distribution control comprehensive tester, including industrial computer, discrete quantity acquisition module, interface adapter box, program control alternating current source, program control direct current source, the interface adapter box includes bottom plate, signal conditioning board and switch module installed on the bottom plate, the switch module is by a plurality of relay board combination constitutes, signal conditioning board is connected with discrete quantity acquisition module after being connected with the alternating current distribution box of waiting for testing, the relay board is connected with the corresponding distribution box of waiting for testing, program control alternating current source is connected with the relay board of alternating current distribution box of waiting for testing, program control direct current source is connected with the relay board of direct current distribution box of waiting for testing, the control end of all relay boards is connected with industrial computer, the control end of program control alternating current source and program control direct current source is connected with industrial computer, the bottom plate is provided with multichannel connection interface, and the distribution box port of waiting for testing is connected with corresponding connection interface on the bottom plate, the receiving end of discrete quantity acquisition module is connected with connection interface on the bottom plate, and the output end of discrete quantity acquisition module is connected with industrial computer.

[0022] The tester further comprises an insulation tester, the detection end of the insulation tester is connected with the relay board, and the output end of the insulation tester is connected with the industrial computer.

[0023] The industrial computer is provided with a touch control screen.

[0024] The discrete quantity acquisition module is a discrete quantity acquisition board card.

[0025] The industrial computer sends a control instruction to switch the relay of the adapter box board card, the voltage signal of the program control direct current source is transmitted to the distribution box through the relay of the board card to control the on-off of the measured line of the distribution box and provide a voltage reference for testing the on-off of the line of the distribution box, and the insulation tester performs insulation testing on the measured line through the adapter box, collects data and sends the data to the industrial computer.

[0026] Industrial computer: as the control core of the tester, responsible for the hardware connection of the test resources such as program control direct current source, discrete quantity acquisition module, insulation tester and switch module configured by the system to realize unified scheduling, and completes the calculation and processing of the return data of the test resources;

[0027] Program control direct current source: the industrial computer can control the output of direct current 28V voltage through LAN bus, the voltage can simulate the control signal on the simulator, and can also provide power supply for the measured product;

[0028] Program control alternating current source: the industrial computer controls the output of 115V voltage through LAN bus to simulate the alternating current power on the simulator.

[0029] Discrete quantity acquisition module: connected with the industrial computer through the PCI bus slot, can collect the "ground / on" and "28V / on" signals output by the measured product;

[0030] Insulation tester: can test the insulation of the switch device of the product under test, and transmit the test results to the test software through the USB bus, so as to complete the detection of the circuit insulation of the product;

[0031] Switch module: receives the LAN bus command of the industrial computer, and completes the connection and on-off control of the configuration resource to the product under test;

[0032] Interface adapter box: as an intermediate connection part of the test resource and the product under test, responsible for distributing and connecting the electrical connection interface of the test resource and the product under test.

[0033] Through the technical scheme of the present application, in actual application, the finished product tested by the tester is three models of power distribution control boxes, namely AC power distribution control box, DC power distribution control box and anti-icing power distribution box, mainly for pre-installation testing of the above power distribution control boxes.

[0034] According to the power distribution control box inspection procedure, the power isolation of the product under test can be checked;

[0035] According to the power distribution control box inspection procedure, the power distribution logic of the product under test can be checked;

[0036] According to the power distribution control box inspection procedure, the power output control function can be detected.

[0037] The AC power distribution control box is mainly responsible for controlling the power supply management, power distribution, emergency power supply, and power monitoring between the AC power generation from the aircraft generator and the AC load, and the generator 1 and 2 respectively supply power to the AC bus bars 1 and 2 in the left and right power distribution boxes, the APU (auxiliary power unit), EPU (emergency power unit) and ground power supply are connected with the bus bar through contactor or circuit breaker and other protection devices, and the bus bar can obtain power from multiple sources, which reduces the possibility of losing power supply at the same time to a certain extent. The cross-link relationship principle diagram is shown in Figure 2 ;

[0038] According to the principle of AC power distribution control box and the verification process, the control box verification mainly includes APU power distribution part inspection, normal power-on logic inspection, main generator power distribution logic inspection and emergency pump logic inspection. During the control box test process, the simulated generator input AC program-controlled power supply, the program-controlled DC power supply for the control box work, the switch unit simulating the input state of the cross-link equipment, and the discrete quantity acquisition module for determining the state of the controller switch device are required.

[0039] The DC power distribution control box is mainly responsible for controlling the power conversion, power distribution, emergency power supply, power monitoring and other functions in the middle section from AC to DC power supply to the DC load. The three-phase AC power of two AC bus bars is converted into DC power by the voltage converter TRU1 and TRU2, and is supplied to the DC bus bar 1 and the DC bus bar 2 in the left and right DC power distribution boxes through the bus bar connection breaker and the reverse flow breaker, so that the on-board DC load obtains power. The battery serves as an emergency power supply, and when both the two generators and the APU fail, it can supply power to the DC bus bar. The cross connection principle diagram is shown in Figure 3

[0040] According to the principle and verification process of the DC power distribution control box, the control box verification mainly includes four items: DC ground power supply function check, No. 1 TRU power supply function check, No. 2 TRU power supply function check and battery power supply function check. During the control box test, the DC process control power supply for simulating the input of No. 1 and No. 2 TRU, the switch unit for simulating the input state of the cross connection equipment, and the discrete quantity acquisition module for determining the state of the control box switch device are required.

[0041] The working principle of the helicopter rotor anti-icing system is shown in Figure 4

[0042] The anti-icing power distribution box is a component of the anti-icing system, and its main functions include:

[0043] 1) Receive input signals from the controller, and connect the AC power supply to the main rotor heating assembly through the main rotor current ring assembly;

[0044] 2) Receive input signals from the controller, and connect the AC power supply to the tail rotor heating assembly through the tail rotor current ring assembly;

[0045] 3) Collect the anti-icing system working current of the main rotor and the tail rotor, and feed back the signal to the controller;

[0046] 4) Accept the grid connection signal of the AC power supply, and connect or disconnect the AC power supply;

[0047] 5) In the single failure state of the AC power supply, receive the conversion signal to realize automatic conversion of the APU power supply.

[0048] The basic principle of the power distribution box is shown in Figure 5

[0049] ​​​According to the principle of the anti-icing distribution box and the calibration process, the control box calibration mainly includes five items: main propeller de-icing contactor control function check, tail propeller de-icing contactor control function check, power switching contactor control function check, folding AC contactor control function check, and folding DC contactor control function check. During the control box test, a DC process power supply table for the operation of the distribution box, a switch unit simulating the input state of the cross-linked equipment, and a discrete quantity acquisition module for determining the state of the distribution box switch device are required.

[0050] Through the analysis of AC distribution control box, DC distribution control box, anti-icing distribution box inspection specification and test report, and the previous technical exchange, according to the type of test signal, the test signal can be divided into the following categories:

[0051] (1) Switching quantity simulation signal;

[0052] (2) "Ground / ON" acquisition signal;

[0053] (3) "28V or 115V / ON" acquisition signal;

[0054] (4) Switching signal required for conduction test.

[0055] The tester is designed according to the actual functions and working principles of on-board power distribution control products. Its test functions mainly include: 1. Checking the power isolation; 2. Checking the power distribution logic; 3. Having the power output control function. The test principles for various tested products are introduced as follows:

[0056] The AC distribution control box calibration mainly includes four items: APU distribution part check, normal power-on logic check, main generator distribution logic check, and emergency pump logic check. The tester provides 115V AC power generated by the on-board generator, 28V control signal that can control the on-off of the switch in the distribution box, discrete quantity acquisition module that can output AC power to the distribution box control circuit, and "Ground / ON" acquisition module that can determine the pin state of the distribution box. The cross-linking test principle between the modules of the tester is shown in Figure 6 .

[0057] The program-controlled AC power supply is responsible for simulating 115V / 400Hz AC power generated by No. 1 and No. 2 generators and APU generator on the simulator to simulate the power consumption environment of the AC power distribution control box controlled by the AC power distribution control box; the program-controlled DC power supply is responsible for: 1. providing 28V power for the normal operation of the AC power distribution control box, and 2. simulating the "28V / ON" signal input to the control module of the power distribution control box. The switch module is mainly responsible for individually controlling the on-off of each channel of the AC and DC power input to the power distribution control box. The discrete quantity acquisition module is mainly used for acquiring the 115V signal output by the power distribution control box. The ground acquisition module is mainly responsible for acquiring the "ground / ON" signal output by the power distribution control box.

[0058] When testing, the specified steps need to be followed. First, control the program-controlled DC power supply to output 28VDC after passing through the switch module to the control box, at which time the control box starts to work; control the program-controlled AC power supply to output 115V, and then open the corresponding channel of the switch module according to the process procedure to supply or cut off power to the specified pin of the control box, thereby simulating different AC power supply scenarios on the simulator; the switch module sends 28V control signals to the specified pin of the control box according to the verification procedure, and the control box can control the on-off of the power controller after receiving the control signals, thereby realizing the output and cut-off of 115V AC power; at this time, the discrete quantity acquisition module can acquire whether there is 115V voltage on the corresponding output pin of the control box to determine whether the control box successfully executes the corresponding action of the control signal; at the same time, the ground acquisition module can also synchronously acquire the "ground / ON" signal output by the control box to determine whether the feedback function of the control box is normal.

[0059] The verification content of the DC power distribution control box mainly includes four items: DC ground power supply function check, No. 1 TRU power supply function check, No. 2 TRU power supply function check, and battery power supply function check. The tester should provide 28V DC power supply on the simulator according to the check content, as well as 28V control signals that can control the on-off of the switch in the power distribution box, discrete quantity acquisition modules that can acquire the DC power output by the control line of the power distribution box and judge the state of the "ground / ON" signal acquisition of the pin of the power distribution box. The interconnection and cooperation of the modules of the tester for testing principle are as shown in Figure 7 .

[0060] The program-controlled DC power supply is mainly used for simulation: 1. 28V power supply output by No. 1 and No. 2 TRUs on the machine, battery output, and ground power supply output, and 2. 28V signal that can control the action of the control box on the machine. The switch module is mainly responsible for individually controlling the on-off of each channel of the DC power input to the power distribution control box. The discrete quantity acquisition module is mainly used for acquiring the 28V signal and "ground / ON" signal output by the power distribution box.

[0061] When testing, the steps specified in the "DC power distribution control box verification process" should be followed. First, control the program-controlled DC power supply to output 28VDC through the switch module to the control box, which starts working at this time. Then, according to the process, open the corresponding channel of the switch module to supply / drain power to the control box specified pin, thereby simulating different DC power supply scenarios on the machine. The switch module sends 28V control signals to the control box specified pin according to the verification procedure, and the control box can control the on / off of the power controller after receiving the control signal, thereby realizing the output and power-off of 28V DC. At this time, the discrete quantity acquisition module can collect whether there is 28V voltage on the corresponding output pin of the control box to determine whether the control box successfully executes the corresponding action of the control signal, that is, to realize the continuity test. At the same time, the discrete quantity acquisition module can also synchronously collect the "ground / open" signal output by the control box to determine whether the feedback function of the control box is normal.

[0062] The deicing power distribution box verification content mainly includes five major items: main propeller deicing contactor control function check, tail propeller deicing contactor control function check, power switch contactor control function check, folding AC contactor control function check, and folding DC contactor control function check. The tester should provide 28V control signals to control the on / off of the switch in the power distribution box, an insulation tester to determine the insulation of the power distribution box control circuit, and a discrete quantity acquisition module to collect the "ground / open" state of the power distribution box pin. The test principle of the interconnection between the modules of the tester is shown in Figure 8 .

[0063] The program-controlled DC power supply is mainly used to simulate: 1. The 28V power supply on the machine provides power for the normal operation of the power distribution box, and 2. The 28V signal that can control the action of the power distribution box on the machine. The switch module is mainly responsible for the on / off control of each channel of the 28V input to the power distribution box and the acquisition end of the insulation tester. The discrete quantity acquisition module is mainly used to collect the 28V signal and the "ground / open" signal output by the power distribution box.

[0064] When testing, the steps specified in the "deicing power distribution box verification process" should be followed. First, control the program-controlled DC power supply to output 28VDC through the switch module to the control box, which starts working at this time. Then, according to the process, open the corresponding channel of the switch module to supply / drain power to the control box specified pin, thereby simulating different DC power supply scenarios on the machine. The switch module sends 28V control signals to the control box specified pin according to the verification procedure, and the control box can control the on / off of the power controller after receiving the control signal, thereby realizing the output and power-off of 28V DC. At this time, the discrete quantity acquisition module can collect whether there is 28V voltage on the corresponding output pin of the control box to determine whether the control box successfully executes the corresponding action of the control signal, that is, to realize the continuity test. At the same time, the discrete quantity acquisition module can also synchronously collect the "ground / open" signal output by the control box to determine whether the feedback function of the control box is normal.

[0065] Interface adapter box is responsible for integrating general switch, "ground open" collection, AC & DC power supply and other resources of test system configuration, and realizing the adaptation and docking of test resources and products under test.

[0066] The working cross-linking schematic diagram of interface adapter box is shown in Figure 9

[0067] According to the system configuration resources and the test requirements of products under test, the interface adapter box integrates the following functions:

[0068] 1. Complete the program-controlled AC power supply, program-controlled DC power supply supply introduction, line distribution

[0069] Program-controlled AC power supply mainly simulates on-board AC (115V / 400Hz), and transmits the simulated voltage signal to the AC power distribution control box through the interface adapter box; program-controlled DC power supply mainly simulates on-board DC (28V), and transmits the simulated voltage signal to the DC power distribution control box through the interface adapter box; the adapter box as an intermediate conversion link, introduces the switch resource in the middle of the program-controlled power supply output to the pin distribution circuit of the product under test to realize the accurate control of pin power-on.

[0070] 2. Complete the power supply, channel distribution, and communication switching of the general switch module

[0071] The interface adapter box is internally configured with a 96-channel general switch module. According to the demand of AC power distribution control box, DC power distribution control box and anti-icing power distribution box, the switch channels are distributed and signal switched to realize the control from program-controlled AC power supply, program-controlled DC power supply output to the corresponding pins of the power distribution box.

[0072] 3. Complete the 115V signal conditioning

[0073] The conditioning module in the adapter box can condition the 115V AC signal output by the AC power distribution control box into a DC signal available for board card collection.

[0074] 4. Complete the introduction of discrete quantity collection resources, channel distribution

[0075] Discrete quantity collection is used to collect the 28V / ON, conditioned 115V / ON, and ground / ON signals generated by the AC power distribution control box, DC power distribution control box, and anti-icing power distribution box.

[0076] The "ground" signal generated by the corresponding pins of the AC power distribution control box and the DC power distribution control box is collected to determine whether the function of the power distribution box is normal. The interface adapter box can switch the collection channel to the pins of the product under test after introducing the "ground / ON" collection channel.

[0077] 5. Complete the docking with the product under test, and adapt to the test requirements of different signal types of each pin

[0078] ​The adapter box connects the AC power distribution control box, the DC power distribution control box and the anti-icing power distribution box, and then connects the corresponding resource configuration end according to the signal type of each pin, so as to realize the connection of demand and resource.

[0079] 6. Complete the insulation tester test path connection

[0080] In view of the possible fault problems of the measured product, the insulation tester can be used for preliminary insulation test and fault elimination. After the HI and LO pen of the tester are introduced into the interface adapter box, the insulation between different pins can be tested by different switch combinations.

[0081] The above examples only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

[0082] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A power distribution control integrated tester, characterized by: The device comprises an industrial computer, a discrete quantity acquisition module, an interface adaptation box, a program-controlled AC power supply, a program-controlled DC power supply, the interface adaptation box comprises a bottom plate, a signal conditioning plate and a switch module mounted on the bottom plate, the switch module is composed of a plurality of relay boards, the signal conditioning plate is connected with the AC distribution box to be tested and then connected with the discrete quantity acquisition module, the relay board is connected with the corresponding distribution box to be tested, the program-controlled AC power supply is connected with the relay board connected with the AC distribution box to be tested, the program-controlled DC power supply is connected with the relay board connected with the DC distribution box to be tested, the industrial computer is connected with the control end of all the relay boards, the industrial computer is connected with the control end of the program-controlled AC power supply and the program-controlled DC power supply, a plurality of connection interfaces are arranged on the bottom plate, and the port of the distribution box to be tested is connected with the corresponding connection interface on the bottom plate, the receiving end of the discrete quantity acquisition module is connected with the connection interface on the bottom plate, and the output end of the discrete quantity acquisition module is connected with the industrial computer.

2. The power distribution control integrated tester of claim 1, wherein: The tester further comprises an insulation tester, the detection end of the insulation tester is connected with the relay board, and the output end of the insulation tester is connected with the industrial computer.

3. The power distribution control integrated tester of claim 1, wherein: A touch control screen is arranged on the industrial computer.

4. The power distribution control integrated tester of claim 1, wherein: The discrete quantity acquisition module is a discrete quantity acquisition board card.

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