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CN-115184646-B - Portable multifunctional veneer test fixture

CN115184646BCN 115184646 BCN115184646 BCN 115184646BCN-115184646-B

Abstract

The invention provides a portable multifunctional single board testing tool which comprises an interface testing box, an upper computer, a main control box, a universal testing bottom plate and a testing cable, wherein the interface testing box and the main control box are all in communication connection with the upper computer through the testing cable, a main control box connector and a tested single board connector are arranged on the universal testing bottom plate and are respectively used for connecting the main control box and the tested single board, the interface testing box comprises a switching value signal source, an analog quantity signal source, an RS422 signal source and an HB6096 signal source, a matrix splicing system is arranged in the interface testing box and is used for carrying out switching adjustment on each signal source in the interface testing box, the tested single board connector comprises a 16-bit internal bus connector, an 8-bit internal bus connector and an IO control connector, the testing cable is suitable for different connector pin definitions, and different connectors are switched in a detachable mode. The test tool has the advantages of strong functionality, capability of improving test efficiency, small volume, light weight and portability.

Inventors

  • SUN YANGFAN
  • LIU ANZHANG

Assignees

  • 陕西千山航空电子有限责任公司

Dates

Publication Date
20260505
Application Date
20220711

Claims (7)

  1. 1. The portable multifunctional single board testing tool is characterized by comprising an interface testing box, an upper computer, a main control box, a universal testing bottom plate and a testing cable; The interface test box and the main control box are both in communication connection with the upper computer through the test cable, and a main control box connector and a tested single board connector are arranged on the universal test bottom plate and are respectively used for connecting the main control box and the tested single board; the interface test box comprises a switching value signal source, an analog value signal source, an RS422 signal source and an HB6096 signal source, wherein a matrix splicing system is arranged in the interface test box and is used for switching and adjusting all the signal sources in the interface test box; The tested single board connector comprises a 16-bit internal bus connector, an 8-bit internal bus connector and an IO control connector, wherein the test cable is matched with different connector pin definitions, and different connectors are switched in a detachable mode; The upper computer is provided with universal test signal source upper computer software which comprises excitation simulation software and is used for selecting different types of signal sources, and the universal test signal source upper computer software is freely combined through a matrix splicing system arranged in the interface test box so as to be suitable for different types of tested single boards; The matrix splicing system acquires signal configuration information loaded by the upper computer through the Ethernet, analyzes the signal configuration information, assigns values to a register of a bottom layer driver, and controls an enabling end of the relay through the register so as to recombine and output different input signals of the upper computer.
  2. 2. The portable multifunctional single board testing tool according to claim 1, wherein an intelligent diagnosis system is arranged in the upper computer, the intelligent diagnosis system comprises a diagnosis unit and a display unit, the diagnosis unit is used for analyzing and judging according to signal characteristics of a tested single board, detecting and positioning functional faults of the tested single board, and the display unit is used for displaying detected fault information.
  3. 3. The portable multifunction test fixture of claim 1, wherein the switching value signal source comprises a switching frequency signal source and the analog value signal source comprises a direct current analog audio signal source, an alternating current analog signal source, and an analog output signal source.
  4. 4. The portable multifunctional test fixture of claim 1, wherein the matrix splicing system is in control connection with the switching value signal source, the analog value signal source, the RS422 signal source and the HB6096 signal source respectively through a GJB289A bus.
  5. 5. The portable multifunction board test fixture of claim 1, further comprising a power conversion box for converting a power supply voltage and providing the converted power supply to the universal test base board.
  6. 6. The portable multi-function board test fixture of claim 1, wherein the interface test box is further communicatively coupled to the universal test base board via the test cable.
  7. 7. The portable multi-function board test fixture of claim 1, wherein the interface test box is provided with a 24V power adapter to power the interface test box.

Description

Portable multifunctional veneer test fixture Technical Field The invention relates to the technical field of avionic communication, in particular to a portable multifunctional single board testing tool integrating an intelligent diagnosis system and intelligent signal simulation. Background The flight parameter collector relates to various collection boards, and according to the division of signal types, the collection boards of the flight parameter collector can be a discrete quantity/frequency quantity signal interface, an analog quantity signal interface, a bus signal interface, a host computer interface and an audio/video signal interface module. The method for testing the flying parameter collector comprises the steps of 1) testing the single board in a low efficiency mode, and enabling the interface to be covered incompletely, wherein part of interfaces can be finished only by means of the whole machine test, if design defects are found in the whole machine test, the cost is larger, 2) the whole machine test can only perform functional test and cannot perform boundary test, part of reserved functions cannot perform test, hidden danger is left by the aid of subsequent external field add-on and board card borrowing, 3) part of board card cross-linking communication problems are difficult to check and affect the testing efficiency, and 4) different signal sources and test cables need to be replaced for different types of collected single board tests. With the development of intellectualization, the existing acquisition type single board cannot keep the number of interfaces consistent, the internal bus interaction mode is not unique, the acquired signal type is not single, and more signals of special types are acquired. Therefore, according to the analysis, the existing test method has a plurality of defects, and is particularly important to accelerate single board debugging, improve the test efficiency of the whole machine, ensure the test sufficiency, develop a board-level test fixture, intelligently detect the fault type of the single board and finish the fault positioning of components. Disclosure of Invention In view of the above, the embodiment of the application provides a portable multifunctional single board testing tool, which integrates an intelligent diagnosis system and intelligent signal simulation, solves the obvious problems that the existing tool is tedious and heavy, the type of a testing signal is single and cannot be fully tested, ensures that the testing tool is more portable and intelligent, and meets the board card level testing requirement in the field of avionics technology communication. The embodiment of the application provides a portable multifunctional single board testing tool, which comprises an interface testing box, an upper computer, a main control box, a universal testing bottom plate and a testing cable, wherein the interface testing box is connected with the upper computer; The interface test box and the main control box are both in communication connection with the upper computer through the test cable, and a main control box connector and a tested single board connector are arranged on the universal test bottom plate and are respectively used for connecting the main control box and the tested single board; the interface test box comprises a switching value signal source, an analog value signal source, an RS422 signal source and an HB6096 signal source, wherein a matrix splicing system is arranged in the interface test box and is used for switching and adjusting all the signal sources in the interface test box; the tested single board connector comprises a 16-bit internal bus connector, an 8-bit internal bus connector and an IO control connector, wherein the test cable is matched with different connector pin definitions, and different connectors are switched in a detachable mode. Further, general test signal source upper computer software is arranged in the upper computer, and comprises excitation simulation software for selecting different types of signal sources, and the signal sources are freely combined through a matrix splicing system arranged in the interface test box so as to be suitable for different types of tested single boards. Further, the matrix splicing system acquires signal configuration information loaded by the upper computer through the Ethernet, analyzes the signal configuration information, assigns values to a register of a bottom layer driver, and controls an enabling end of the relay through the register so as to recombine and output different input signals of the upper computer. Further, an intelligent diagnosis system is arranged in the upper computer and comprises a diagnosis unit and a display unit, wherein the diagnosis unit is used for analyzing and judging according to signal characteristics of the detected single board, detecting and positioning the functional faults of the detected single board, and the display unit is used for display