Automatic control board card test system based on QT

Abstract

The invention discloses a QT-based control board card automatic test system, which comprises a test upper computer, test equipment and at least one group of test terminals, and is characterized in that the test upper computer is connected with the test equipment, and the test equipment is provided with a CPU control unit used for executing an upper computer software program; the CPU control unit transmits a detection result of the test equipment to the test upper computer in real time, the test terminal comprises a bearing box, the upper end of the bearing box is open, the inner cavity of the bearing box is of a hollow structure and is used for bearing a tested control board card, and response data of the tested control board card in the test terminal is transmitted to the test equipment through RS422 / RS485 communication; the method has the advantages of being high in testing efficiency, low in labor cost, safe and reliable, adaptation of board cards of different interfaces and different types can be rapidly achieved, the universality is high, the testing step process and the judgment standard are unified, the consistency and reliability of testing results are guaranteed, and the testing process is safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of avionics technology, specifically to an automatic testing system for control boards based on QT. Background Technology

[0002] In the research, development, production, and maintenance of avionics equipment, the functional and performance testing of control boards, such as those based on ARM, DSP, or FPGA, is a crucial step. Currently, the testing of such boards largely relies on manual operation of instruments such as oscilloscopes, multimeters, and signal generators, or the use of makeshift testing environments. This traditional testing method has the following significant drawbacks: Inefficient: The testing process is cumbersome, heavily reliant on the experience and skills of the testers, and the testing cycle is long; Poor consistency: Manual testing is prone to random errors, and test results from different personnel or in different environments are difficult to guarantee consistency and comparability; Reliability risks: Manual wiring and operation can easily lead to connection errors, which may damage expensive control boards, and it is difficult to achieve full functional performance testing under temperature and vibration environment tests. Insufficient flexibility: When testing different types of control boards, it is necessary to rebuild the test environment, configure hardware connections and test logic, which has poor versatility and is prone to human error; therefore, an automatic testing system for control boards based on QT is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic testing system for control boards based on QT, so as to solve the problems of low efficiency, poor consistency, high reliability risk and insufficient flexibility of existing testing systems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic testing system for control boards based on QT, comprising a test host computer, a test device, and at least one set of test terminals. The test host computer is connected to the test device, and the test device has a CPU control unit for executing the host computer software program. The CPU control unit transmits the test device's detection results to the test host computer in real time. The test terminal includes a carrier box with a hollow inner cavity at the top opening for carrying the control board under test. The test terminal is connected to the test device via a connector cable, and the response data of the control board under test in the test terminal is transmitted to the test device via RS422 / RS485 communication.

[0005] Furthermore, the host computer for testing has a QT-based human-computer interaction interface, and the host computer for testing interacts with the testing device via a USB serial port.

[0006] Furthermore, the top of the carrier box is detachably connected to a cover by fasteners, and the side of the carrier box is provided with an external interface, through which connector cables are connected.

[0007] The beneficial effects of this invention are: it features simple operation, convenient use, fast testing efficiency, low labor costs, and safety and reliability. It can quickly adapt to different interfaces and types of boards through modular and replaceable testing terminals, exhibiting strong versatility and adapting to dedicated testing systems for different control boards. Furthermore, with the cooperation of the testing host computer, testing terminal, and testing equipment, it unifies testing procedures and judgment standards, ensuring the consistency and reliability of test results. Simultaneously, through the cooperation of the carrier box, external interfaces, and connector cables, it can use hardware connections for fixation, effectively avoiding manual wiring errors, and ensuring a safe and reliable testing process. Attached Figure Description

[0008] Fig. 1 This is a connection diagram of the automatic testing system for the control board of the present invention; Fig. 2 This is a schematic diagram of the automatic testing system for the control board of the present invention; Fig. 3 This is a three-dimensional structural view of the test terminal of the present invention.

[0009] In the diagram: 1. Test host computer; 2. Test equipment; 3. Test terminal; 31. Carrier box; 32. Box cover; 33. Fasteners; 34. External interface. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] Please see Figs. 1-3This invention provides a technical solution: an automatic testing system for control boards based on QT, comprising a test host computer 1, a test device 2, and at least one set of test terminals 3. The test host computer 1 is connected to the test device 2, and the test device 2 has a CPU control unit for executing the host computer software program. The CPU control unit transmits the test results from the test device 2 to the test host computer 1 in real time. The test terminal 3 includes a carrier box 31 with a hollow structure at the top opening for carrying the control board under test. The top of the carrier box 31 is detachably connected to the test host computer via fasteners. The carrier box 31 is equipped with a cover 32 and has an external interface 34 on its side. Connector cables are connected to the external interface 34. The carrier box 31 and the cover 32 are both rectangular in shape when viewed from above. The test terminal 3 and the test equipment 2 are connected by a connector cable, and the response data of the control board under test in the test terminal 3 is transmitted to the test equipment 2 through RS422 / RS485 communication. The test host computer 1 has a QT-based human-machine interface, and the test host computer 1 interacts with the test equipment 2 through a USB serial port.

[0012] It should be noted that test terminal 3 is used to install the adapter control board, realizing the physical installation of the control board and the function of external signal connection; the test device 2 mentioned above is connected to test terminal 3 through a cable to realize signal interaction with the control board, including power supply, test excitation signal input, communication and other functions, receiving, responding to and forwarding communication command information issued by test host computer 1, and also has the self-testing function of test device 2; the test host computer 1 mentioned above is a test host computer based on Qt human-computer interaction interface, which interacts with test device 2 through USB serial port, and is used to receive, parse, process and graphically display the information data of test device 2 and control board, and can also issue test commands according to test requirements to realize manual / automatic testing of control board.

[0013] This QT-based automatic testing system for control boards involves first opening the cover 32 and placing the control board under test into the carrier box 31 of the test terminal 3. Then, the test terminal 3 is connected to the test equipment 2 via cable, and the host computer 1 is connected to the test equipment 2 via USB cable. After the 220V AC power plug is installed, the test equipment 2 is powered normally. The CPU control unit in the test equipment 2 executes the host computer software program and transmits the self-test results of the test equipment 2 to the host computer interface in real time. Before starting the test, the test equipment 2 is controlled by selecting the control board type and test method. Clicking the communication query on the host computer interface allows the selection of test functions to send test commands to the test equipment 2. The CPU control unit in the test equipment 2 controls various... The functional module provides power and precise excitation signals to the control board under test. After the test is completed, the response data of the control board under test is returned to the test device 2 via RS422 communication. The test device 2 parses the data and uploads it to the test host computer 1 via USB communication for real-time display. During the test, one function can be selected for testing or all functions can be tested. After the test is completed, the test data information can be displayed and an automatic test report can be generated. When a fault occurs, the detailed data information interface can be switched to determine the specific location of the fault and quickly locate the fault. By changing different test terminals 3, and setting the external interface 34 on the test terminal 3 as an electrical interface conversion fixture, this system can be quickly applied to the automatic testing of various airborne general-purpose boards such as ARM architecture, DSP architecture, and FPGA architecture.

[0014] The test host computer 1 contains test software, which is installed and runs in the control board processor. It works with the board hardware to realize functions such as external signal acquisition, signal output control, logic operation, and communication. Based on the board hardware principle, it realizes the hardware circuit self-test function.

[0015] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0016] The above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be understood that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. In the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Among these, there are various ways of detachable installation, such as by using a combination of plug-in and snap-fit, or by using bolt connections, etc.

[0017] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic testing system for control boards based on QT, characterized in that: The system includes a host computer, testing equipment, and at least one set of testing terminals. The host computer is connected to the testing equipment, which has a CPU control unit for executing the host computer software program. The CPU control unit transmits the test results from the testing equipment to the host computer in real time. The testing terminal includes a carrier box with a hollow structure at the top opening to support the control board under test. The testing terminal is connected to the testing equipment via a connector cable, and the response data of the control board under test in the testing terminal is transmitted to the testing equipment via RS422 / RS485 communication.

2. The automatic testing system for control boards based on QT according to claim 1, characterized in that: The host computer for testing has a QT-based human-computer interaction interface, and the host computer for testing interacts with the testing device via a USB serial port.

3. The automatic testing system for control boards based on QT according to claim 1, characterized in that: The top of the carrier box is detachably connected to a cover by fasteners, and the side of the carrier box is provided with an external interface, through which connector cables are connected.

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