CN212989502U

CN212989502U - Equipment test fixture based on STM32

Info

Publication number: CN212989502U
Application number: CN202020729986.7U
Authority: CN
Inventors: 赵明江
Original assignee: Hideame Electronic Technology Suzhou Co ltd
Current assignee: Hideame Electronic Technology Suzhou Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-04-16
Anticipated expiration: 2030-05-07

Abstract

The utility model relates to an equipment test fixture based on STM32, including STM32 module, STM32 module connection power control module, passageway integration module and PC, power module connects the equipment that awaits measuring, be used for through relay on-off control equipment switch that awaits measuring, the equipment that awaits measuring is connected with PC, and the equal connection channel of N output of the equipment that awaits measuring integration module, the STM module passes through the relay in the control channel integration module, integrate N output to one above, there is only an output at the same moment, the test switching module is connected to the passageway integration module, N test equipment is connected to the test switching module, test equipment connects PC. The utility model discloses test fixture can carry out the passageway and switch, corresponds test function and switches to save test data, will badly carry out the card accuse, improve efficiency of software testing, guarantee the product quality.

Description

Equipment test fixture based on STM32

Technical Field

The utility model relates to a test fixture field, concretely relates to equipment test fixture based on STM 32.

Background

At present, for the test of equipment to be tested, only special tests can be carried out by using an oscilloscope, a universal meter and the like, time is wasted by repeated operation, and the difficulty in recording test results is high. Each device produced by the production line has a plurality of channels and functions, the production line test often repeats certain actions, a large amount of time and manpower are wasted, and the quality of manual clamping control cannot be guaranteed.

In order to facilitate production line operation and improve working efficiency, an automatic test fixture needs to be developed with the core of reducing cost and improving quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a STM 32's equipment test fixture for the product test work efficiency who solves among the prior art is low, the product quality is difficult to the problem of accuse.

The utility model provides an equipment test fixture based on STM32, including STM32 module, power control module, passageway integration module, test switching module, STM32 module connection power control module, passageway integration module and PC, power control module connects await measuring equipment for through relay on-off control equipment switch that awaits measuring, the equipment that awaits measuring is connected with the PC, and the N output of the equipment that awaits measuring all connects the passageway integration module, the STM module passes through the relay in the control channel integration module, integrates N output to the higher authority, and only one output at the same moment, the test switching module is connected to the passageway integration module, N test equipment is connected to test switching module, test switching module is used for testing on the different test equipment with output switching, test equipment connects the PC.

Further, the test equipment comprises a universal meter, an electronic load and an oscilloscope.

Further, the equipment to be tested is connected with the PC through a network cable.

Adopt above-mentioned the utility model discloses technical scheme's beneficial effect is:

the utility model discloses test fixture can carry out the passageway and switch, corresponds test function and switches to save test data, will badly carry out the card accuse, improve efficiency of software testing, guarantee the product quality.

Drawings

FIG. 1 is a schematic structural diagram of an equipment testing jig based on STM 32;

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in FIG. 1, the utility model provides an equipment testing jig based on STM32, which comprises an STM32 module, a power control module, a channel integration module and a testing switching module, wherein the STM32 module is connected with the power control module, the channel integration module and a PC (personal computer), the PC sends a testing command to the STM32, the power control module is connected with a device to be tested for controlling the switch of the device to be tested through a relay switch, the device to be tested is connected with the PC through a network cable, N output ends of the device to be tested are all connected with the channel integration module, the STM module integrates N outputs on one by controlling the relay in the channel integration module, only one output is provided at the same time, the channel integration module is connected with the testing switching module, the testing switching module is connected with N testing devices, the testing switching module is used for switching the outputs to different testing devices for testing, the test equipment is connected with the PC and used for uploading test data.

The test equipment comprises a universal meter, an electronic load and an oscilloscope.

The utility model discloses an automatic test flow of test fixture does: in the voltage correction mode, voltage firstly enters a VOUT main circuit through a channel integration module, then a voltage correction test relay and a GND relay in a test function switching module are connected to a KEITHLAY table, a voltage value displayed by the table can be fed back to a PG detection circuit, the voltage value enters an acquisition chip through a subtraction circuit (the maximum voltage of the table cannot exceed the input range of the acquisition chip), the voltage value is converted into a register value and finally stored in flash, after multi-section data acquisition, the voltage value displayed by the table and the register value can be fitted into a formula, Y is approximately equal to AX + B (A, B are constants), Y represents the voltage value, and X represents the register value. The current correction method is that after voltage enters a main circuit of VOUT, a 300K resistor is connected in series to a KEITHLAY table through a current correction relay and then connected to the ground to form a loop, similarly to the voltage correction principle, a current value can be converted into a register value through a detection circuit and stored in Flash, then a plurality of sections of data are fitted into a formula, finally when the voltage and the current are set, the FPGA gives out the corresponding register value to generate the voltage and the current value, and the accuracy is greatly improved compared with that before the voltage and the current are not corrected.

To sum up, the utility model discloses test fixture can carry out the passageway and switch, corresponds test function and switches to save test data, will badly carry out the card accuse, improve efficiency of software testing, guarantee the product quality.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides an equipment test fixture based on STM32, its characterized in that, includes STM32 module, power control module, passageway integration module, test switching module, STM32 module connection power control module, passageway integration module and PC, power control module connects equipment under test for switch through relay on-off control equipment under test, equipment under test is connected with the PC, and the N output of equipment under test all connects the passageway integration module, the STM module passes through the relay in the control channel integration module, integrates N output to one above, only one output at the same moment, the test switching module is connected to the passageway integration module, N test equipment is connected to the test switching module, the test switching module is used for testing on switching the output to different test equipment, test equipment connects the PC.

2. The STM 32-based device testing jig of claim 1, wherein the testing device comprises a multimeter, an electronic load, an oscilloscope.

3. The STM 32-based equipment testing jig of claim 1, wherein the equipment under test is connected with a PC through a network cable.