Automatic testing device suitable for microwave assembly

Abstract

The utility model discloses an automatic testing device suitable for a microwave assembly. The automatic testing device comprises a main control circuit board, a serial port communication module, a power supply input module, a matrix switch and the microwave assembly. The main control circuit board comprises a power supply control module and an FPGA main control module; the power input module is electrically connected with the power control module; the matrix switch is electrically connected with the FPGA main control module through the first connector; the microwave assembly is electrically connected with the FPGA main control module through a second connector; and the FPGA main control module communicates with a PC end through the serial port communication module. The automatic testing device is different from an existing testing device, control of the microwave assembly and the matrix switch and control of pulses can be met at the same time, multiple sets of output can be selected, the FPGA main control module is matched with an external interface, automatic testing of microwave assemblies of different models can be met, and therefore the testing requirement is met, and the testing efficiency is improved. And automatic testing of low-cost and miniaturized components is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave component testing, in particular to an automatic testing device suitable for microwave components. Background Art

[0002] During automated testing of microwave components, existing control boxes cannot support full component testing and new control requirements. Existing technologies require at least two control boxes and a switch control board, which increases costs, creates tangled wiring, and is bulky, making it unsuitable for controlling all components and failing to meet automated testing requirements. Furthermore, some larger automated test equipment, while highly automated, has a very expensive control core unit and a bulky, integrated cabinet, which does not meet the testing requirements for flexibility, miniaturization, and low cost.

[0003] Based on this, it is necessary to design an automated testing device that is small in size, low in cost, and can be widely used in various microwave components. Utility Model Content

[0004] In response to the above problems and technical requirements, this application proposes an automated testing device for microwave components. The technical solution is as follows:

[0005] An automated testing device suitable for microwave components, characterized in that the testing device includes a main control circuit board, a serial communication module, a power input module, a matrix switch and a microwave component; the main control circuit board includes a power control module and an FPGA main control module; the power input module is electrically connected to the power control module; the matrix switch is electrically connected to the FPGA main control module via a first connector; the microwave component is electrically connected to the FPGA main control module via a second connector; and the FPGA main control module communicates with a PC via the serial communication module.

[0006] A further technical solution is that the test device also includes a pulse signal interface module, and the pulse signal interface module is electrically connected to the FPGA main control module.

[0007] A further technical solution is that the pulse signal interface module includes a 4-way BNC connector.

[0008] A further technical solution is that the main control circuit board also includes a power input interface and a serial communication interface respectively arranged corresponding to the power input module and the serial communication module.

[0009] Its further technical solution is that the main control circuit board includes a matrix switch interface and a microwave component interface electrically connected to the FPGA main control module; the matrix switch interface is connected to the first connector, and the output of the first connector is connected to the matrix switch; the microwave component interface is connected to the second connector, and the output of the second connector is connected to the microwave component.

[0010] A further technical solution is that the main control circuit board also includes an AD conversion interface, a temperature sensor interface and a differential signal interface electrically connected to the FPGA main control module.

[0011] A further technical solution is that the first connector is a 25-core connector and the second connector is a 50-core connector.

[0012] The beneficial technical effects of the utility model are:

[0013] The present application discloses an automated testing device suitable for microwave components. The testing device generates the required control signals, pulse signals, and corresponding power supply control signals based on FPGA, and can collect temperature, voltage, current, power and other signals at the same time. It can simultaneously meet the control of microwave components and matrix switches, as well as pulse control. There are multiple groups of outputs to choose from. The FPGA main control module cooperates with the external interface to meet the automated testing of microwave components of different models, thereby meeting the testing requirements and realizing low-cost, miniaturized automated testing of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a circuit diagram of the main control circuit board of this application.

[0015] Figure 2 It is a schematic block diagram of the test device of the present application. DETAILED DESCRIPTION

[0016] The specific implementation of the present utility model will be further described below with reference to the accompanying drawings.

[0017] In one embodiment, Figure 1-2 As shown, an automatic testing device suitable for microwave components is provided. Figure 2 As shown, the automated testing device includes a main control circuit board 14, a serial port communication module 13, a power input module 11, a matrix switch 15 and a microwave component 16; the main control circuit board 14 includes a power control module and an FPGA main control module; the power input module 11 is electrically connected to the power control module; the matrix switch 15 is electrically connected to the FPGA main control module through a first connector; the microwave component 16 is electrically connected to the FPGA main control module through a second connector; and the FPGA main control module communicates with the PC through the serial port communication module 13.

[0018] Specifically, such as Figure 1 As shown, the main control circuit board 14 includes a power control module 4 and an FPGA main control module 5; the power input module 11 is electrically connected to the power control module 4 for supplying power to the entire test device.

[0019] Optionally, the testing device further includes a pulse signal interface module 12 , which is electrically connected to the FPGA main control module 5 via a pulse input / output interface 2 on the main control circuit board 14 .

[0020] Specifically in this example, the pulse signal interface module 12 includes a 4-way BNC connector.

[0021] Optional, such as Figure 1 As shown, the main control circuit board 14 further includes a power input interface 1 and a serial communication interface 3 which are respectively arranged corresponding to the power input module 11 and the serial communication module 13 .

[0022] like Figure 1-2 As shown, the main control circuit board 14 includes a matrix switch interface 9 and a microwave component interface 10 electrically connected to the FPGA main control module 5; the matrix switch interface 9 is connected to the first connector, and the output of the first connector is connected to the matrix switch 15; the microwave component interface 10 is connected to the second connector, and the output of the second connector is connected to the microwave component 16.

[0023] Specifically in this embodiment, the first connector is a 25-core connector, and the second connector is a 50-core connector.

[0024] Better, such as Figure 1 As shown, the main control circuit board 14 further includes an AD conversion interface 6 , a temperature sensor interface 7 and a differential signal interface 8 electrically connected to the FPGA main control module 5 .

[0025] The main working principles of each component module of the automated testing device are as follows:

[0026] The entire test device is powered by the power input module 11; the FPGA main control module 5 communicates with the PC through the serial communication module 13; the output of a group of 25-pin connectors on the main control circuit board 14 is connected to the matrix switch 15, and the output of another group of 50-pin connectors is connected to the microwave component 16. The matrix switch 15 and the microwave component 16 are electrically connected to the FPGA main control module 5 through the two groups of connectors, so that the control signals required by the microwave component 16 and the matrix switch 15 can be output through the FPGA main control module 5, and signals can also be received at the same time.

[0027] The pulse input and output signals can be communicated through the BNC connector to input the required control signals to the matrix switch 15 and the microwave component 16 or output the external required synchronization signals.

[0028] During the automated testing process, the microwave component and matrix switch only need to be connected to the output end of the main control circuit board 14 via a connector. The PC then sends the corresponding control instructions to the FPGA main control module 5 via the serial communication module 13. The FPGA main control module 5 receives and processes the signals, performs logical processing, and outputs the signals required by the microwave component 16 and the matrix switch 15 to the output end. The output signals from the output end of the main control circuit board 14 control the microwave component 16 and the matrix switch 15 respectively. Pulse input and output signals can be selected through the 4-way BNC connector. At the same time, the AD conversion interface 6 and the temperature sensor interface 7 can collect temperature, voltage, current, and power information. The differential signal interface 8 can output differential signals for selection. In this way, the control signals required by the microwave component 16 and the matrix switch component 15 are output through the FPGA main control module 5, which can simultaneously meet the control of the microwave component and the matrix switch. The hardware design also adds signal drive amplification and protection circuits, which can meet the purpose of automated testing of different types of microwave components and is convenient to use.

[0029] The automated test device of this application requires a combination of hardware and software, ensuring ease of manufacture and high operational efficiency. The software uses an FPGA to issue power control commands, controlling the on / off power supply of microwave components and matrix switches through MOS transistors, as well as sending the required serial signals to achieve information exchange with the microwave components and matrix switches. Simultaneously, it can collect signals such as temperature, voltage, current, and power. The signal end also features a differential chip to achieve the differential signaling required by the microwave components, as well as a standard I / O port output via a level converter, increasing drive capability to meet all control requirements of the microwave components. One set of differential input and output terminals, as well as three sets of standard I / O port outputs, are reserved for effective control of other devices.

[0030] The above description is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations directly derived or imagined by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the scope of protection of the present invention.

Claims

1. An automated testing device for microwave components, characterized in that: The testing device includes a main control circuit board, a serial port communication module, a power input module, a matrix switch and a microwave component; the main control circuit board includes a power control module and an FPGA main control module; the power input module is electrically connected to the power control module; the matrix switch is electrically connected to the FPGA main control module via a first connector; the microwave component is electrically connected to the FPGA main control module via a second connector; and the FPGA main control module communicates with a PC via the serial port communication module.

2. The automated testing device according to claim 1, wherein: The testing device further comprises a pulse signal interface module, and the pulse signal interface module is electrically connected to the FPGA main control module.

3. The automated testing device according to claim 2, wherein: The pulse signal interface module includes a 4-way BNC connector.

4. The automated testing device according to claim 1, wherein: The main control circuit board further includes a power input interface and a serial communication interface which are respectively arranged corresponding to the power input module and the serial communication module.

5. The automated testing device according to claim 1, wherein: The main control circuit board includes a matrix switch interface and a microwave component interface electrically connected to the FPGA main control module; the matrix switch interface is connected to the first connector, and the output of the first connector is connected to the matrix switch; The microwave component interface is connected to the second connector, and the output of the second connector is connected to the microwave component.

6. The automated testing device according to any one of claims 1 to 5, characterized in that: The main control circuit board also includes an AD conversion interface, a temperature sensor interface and a differential signal interface electrically connected to the FPGA main control module.

7. The automated testing device according to any one of claims 1 to 5, characterized in that: The first connector is a 25-core connector, and the second connector is a 50-core connector.

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