CN114035025A - Automatic testing device and method for portable power station instrument control system board card - Google Patents
Automatic testing device and method for portable power station instrument control system board card Download PDFInfo
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- CN114035025A CN114035025A CN202111287889.2A CN202111287889A CN114035025A CN 114035025 A CN114035025 A CN 114035025A CN 202111287889 A CN202111287889 A CN 202111287889A CN 114035025 A CN114035025 A CN 114035025A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2803—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP] by means of functional tests, e.g. logic-circuit-simulation or algorithms therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
The invention relates to an automatic test device and a test method for a portable power station instrument control system board card. The portable power station instrument control system board automatic testing device comprises a case, a power supply module, a communication module, a programmable test calibration signal source, a relay module, a data acquisition module, a test fixture and a main controller, wherein the main controller is in communication connection with the communication module, the programmable test calibration signal source, the relay module and the data acquisition module through a USB port, and the programmable test calibration signal source is used for providing a test excitation signal or a calibration signal for a tested board. The invention adopts a modularized and high-integration system structure, thereby improving the expandability, portability and automation degree of the testing device; the field test capability and test and calibration efficiency of the instrument control system board card can be greatly improved, the problem of the circuit board card can be solved on the first field, the operation rate of a power station is improved, and the shutdown loss is reduced; the function is perfect, and it is convenient to use, and the test reliability is high, long service life.
Description
Technical Field
The invention relates to the technical field of board card testing, in particular to a portable power station instrument control system board card automatic testing device and a testing method.
Background
The circuit board card is a core component forming the instrument control system of the power station, and the board card possibly has retest and calibration requirements in the operation process of the power station. The field equipment of a common power station is hoisted and installed on the site in the construction stage, and large-scale test equipment is difficult to transport into an instrument control plant after the construction is finished. In addition, the power station maintenance personnel are not circuit board research personnel, do not have the ability of manually testing and calibrating the circuit board, and often need to disassemble the circuit board and send the circuit board back to the original factory for analysis and positioning and calibrating the circuit board parameters.
The power station instrument control system board card test has the requirements of high reliability and high test coverage rate, and the problems of high manual test human factor, low working efficiency, easy error, high maintenance cost, long check and calibration period of returning to a factory and the like are solved, so that a portable instrument control system board card automatic test device is urgently needed to be designed. In the prior art, in the field of general industrial control, some similar products exist in an automatic board card testing device, but the automatic board card testing device based on a power station instrument control system is still in the initial stage of research and development, has the defects of incomplete functions, inconvenient use, low testing reliability and the like, and cannot be popularized and applied on a large scale.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art, and provides a portable power station instrument control system board card automatic testing device and a testing method, which improve the expandability, the portability and the automation degree of the testing device, can greatly improve the site testing capability and the testing and calibrating efficiency of the instrument control system board card, can process the problem of the circuit board card on the first site, improve the operating rate of a power station and reduce the shutdown loss; the function is perfect, and it is convenient to use, and the test reliability is high, easily promotes.
The invention adopts the following technical scheme:
a portable power station instrument control system board automatic testing device comprises a case, a power supply module, a communication module, a programmable test calibration signal source, a relay module, a data acquisition module, a test fixture and a main controller; the test fixture is used for fixing the tested board card and providing a probe and an interface to be connected with the test point of the tested board card; the main controller is in communication connection with the communication module, the programmable test calibration signal source, the relay module and the data acquisition module through the USB port, and the communication module is connected between the main controller and the test fixture and used for realizing information interaction between the main controller and the test fixture; each signal output channel of the programmable test calibration signal source is connected with each channel of the relay module, and each channel of the relay module is electrically connected with the test point of the tested board card through the test fixture; the programmable test calibration signal source is used for providing a test excitation signal or a calibration signal for the tested board card; the data acquisition module is electrically connected with the test fixture and is used for acquiring test signals of the tested board card and feeding the test signals back to the main controller; the relay module realizes the connection of each channel between the programmable test calibration signal source and the tested board card through channel switching and is used for introducing a test excitation signal or a calibration signal into the tested board card; the main controller is used for sending instructions to control the programmable test calibration signal source to generate test excitation signals or calibration signals, controlling the relay module to realize automatic channel switching, controlling the data acquisition module to acquire the test signals, and obtaining test results or calibrating the tested board card.
Furthermore, the test fixture comprises a female fixture and a male fixture, the female fixture is fixedly arranged on the case, the male fixture and the female fixture are detachably connected through a mutually matched socket, and the socket and the probe are arranged on the male fixture.
Furthermore, the communication module adopts an SPI communication module, and the main controller is connected with the communication module through a USB port.
Further, the programmable test calibration signal source adopts a digital source meter.
Furthermore, the relay module comprises a primary matrix relay and a secondary solid state relay module cascaded with the primary matrix relay.
Furthermore, the power module comprises a power distributor, a switching power supply and a UPS power supply, wherein the input end of the switching power supply is connected with the output end of the power distributor, the output end of the switching power supply is connected with the test fixture and used for supplying power to the test fixture and providing power monitoring protection, and the UPS power supply is used for providing uninterrupted power supply for the automatic test device.
Further, the main controller adopts a PC.
Furthermore, the main controller is internally provided with a test function module and a calibration function module, the test function module is used for outputting a control signal to control the test working process of the board card, and the calibration function module is used for outputting a control signal to control the calibration working process of the board card.
Furthermore, the power module, the communication module, the programmable test calibration signal source, the relay module, the data acquisition module and the test fixture are integrally arranged in the case, the operating buttons and the connecting interfaces of the modules are led out of the case, and the test fixture is exposed.
A power station instrument control system board card automatic test method based on the portable power station instrument control system board card automatic test device comprises the following steps:
and 3, the main controller receives the test data, compares the data to obtain a test result, or calibrates the tested board card according to the test data.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
firstly, the automatic test device for the board card of the portable power station instrument control system has a simple structure, adopts a modular and high-integration system structure, and improves the expandability, the portability and the automation degree of the test device; when the device is used, a supervisor can check the test result output by the device, so that the error problem caused by human factors can be greatly reduced, and the test reliability is improved; meanwhile, the field test capability and test and calibration efficiency of the instrument control system board card can be greatly improved, the problem of the circuit board card can be processed on the first field, the circuit board card does not need to be returned to the original factory for processing, the factory returning process which takes several weeks and a series of examination and approval procedures in the power station are omitted, the operation rate of the power station is improved, and the shutdown loss is reduced; the function is perfect, and it is convenient to use, and the test reliability is high, easily uses widely.
Secondly, the test fixture adopts the design of the primary and secondary combined fixtures, so that the loss of a large number of plugging and unplugging of the connector can be avoided, the primary fixture only needs to be replaced after long-term use, and the service life of the device can be prolonged.
Drawings
Fig. 1 is an electrical schematic block diagram of a portable power station instrument control system board automatic test device according to embodiment 1 of the present invention;
fig. 2 is an electrical schematic wiring diagram of the automatic test device for the portable power station instrument control system board card according to embodiment 1 of the present invention;
fig. 3 is a schematic view of an internal structure of a case of the automatic test device for the board card of the portable power station instrument control system in embodiment 1 of the present invention;
fig. 4 is a perspective view of a part of the structure of the automatic test device for the board card of the portable power station instrument control system according to embodiment 1 of the present invention, in which a female clamp structure is shown;
fig. 5 is a schematic perspective view of a sub-clip according to embodiment 1 of the present invention.
In the figure: 1. the device comprises a case, 2 a female clamp, 3 a male clamp, 4 a socket and 5 an interface.
Detailed Description
The invention is further described below by means of specific embodiments.
Example 1
Referring to fig. 1 to 5, the automatic testing device for the portable power station instrument control system board card comprises a case 1, a power supply module, a communication module, a programmable testing and calibrating signal source, a relay module, a data acquisition module, a testing clamp and a main controller. The main controller is in communication connection with the communication module, the programmable test calibration signal source, the relay module and the data acquisition module through the USB port, and the communication module is connected between the main controller and the test fixture and used for realizing information interaction between the main controller and the test fixture; each signal output channel of the programmable test calibration signal source is connected with each channel of the relay module, each channel of the relay module is electrically connected with a test point of the tested board card through the test fixture, and the data acquisition module is electrically connected with the test fixture. The power module, the communication module, the programmable test calibration signal source, the relay module, the data acquisition module and the test fixture are integrally arranged in the case 1, the operating buttons and the connecting interfaces of the modules are led out of the case 1, and the test fixture is exposed.
The test fixture is used for fixing a tested board card, providing probes and an interface 5 to be connected with test points of the tested board card, the probes cover all the electric performance parameter test points of the electronic components on the board card, and the interface 5 is used for connecting a board card interface and communicating with the tested board card according to an interface protocol so as to test the functions and the performance of the board card. The test fixture replaces the scattered wire with the printed circuit board, and compared with a traditional scattered wire connection mode, the connection performance is greatly optimized. The test fixture comprises a female fixture 2 and a male fixture 3, the female fixture 2 is fixedly arranged on the case 1, the male fixture 3 and the female fixture 2 are detachably connected through a socket 4 which is matched with each other, and the interface 5 and the probe are arranged on the male fixture 3. The design of primary and secondary modular fixture can avoid the loss of a large amount of plugs of connector, and long-term use only needs to change sub-anchor clamps 3.
The chassis 1 adopts a 400 × 300 × 200mm sheet metal box body, is safe and stable, resists interference and is convenient to maintain. The main controller adopts a PC. The communication module adopts an SPI communication module, and particularly adopts NI USB-8451I 2C/SPI. The main controller is connected with the communication module through the USB port. The programmable test calibration signal source adopts a keithley 2450 digital source table and is used for providing a test excitation signal or a calibration signal for the tested card. The data acquisition module adopts an acquisition module of a keithley 2450 digital source table and is used for acquiring a test signal of the tested board card and feeding the test signal back to the main controller. The relay module is a program control relay module, adopts NI USB-6525 and comprises a primary matrix relay and a secondary solid state relay module cascaded with the primary matrix relay. The relay module realizes the connection of each channel between the programmable test calibration signal source and the tested board card through channel switching and is used for introducing a test excitation signal or a calibration signal into the tested board card. The power supply module comprises a power supply distributor, a switching power supply and a UPS power supply. The power supply distributor outputs power to the main controller, the communication module, the programmable test calibration signal source, the relay module, the data acquisition module and the switching power supply. The output end of the switching power supply is connected with the test fixture and used for supplying power to the test fixture and providing power monitoring protection, including short circuit, overload and overvoltage protection. The UPS power supply is used to provide uninterrupted power supply to the automatic test equipment, preventing loss of the data being tested and possible damage to the equipment itself or the board card under test when external mains is lost.
The main controller is internally provided with a test function module and a calibration function module, and is realized through a software program. The test function module is used for outputting a control signal to control the test working process of the board card, and the calibration function module is used for outputting a control signal to control the calibration working process of the board card. The main controller is used for sending instructions to control the programmable test calibration signal source to generate test excitation signals or calibration signals, controlling the relay module to realize automatic channel switching, controlling the data acquisition module to acquire the test signals, and obtaining test results or calibrating the tested board card. The main controller is also used for realizing the control of the power supply loop.
Referring to fig. 1 to 5, the power station instrument control system board automatic test method based on the portable power station instrument control system board automatic test device of the invention includes the following steps:
and 3, receiving the test data by the main controller, comparing the data to obtain a test result, and displaying the test result on the main controller or calibrating the tested board card according to the test data.
The portable automatic test device for the power station instrument control system board card is used for testing the power station instrument control system board card, and the test can be finished within three minutes. In the prior art, manual testing of one board card requires half an hour on average, and one person is required for testing and the other person is required for supervision. The test efficiency can be greatly improved.
Example 2
This example differs from example 1 in that: the test fixture comprises a female fixture and a male fixture, the female fixture is fixedly arranged on the case, the male fixture and the female fixture are detachably connected through a mutually matched socket, the socket is arranged on the male fixture, the probe is arranged on the female fixture, and a through hole for the probe to pass through is formed in the male fixture.
The above description is only two specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by the design concept should fall within the scope of infringing the present invention.
Claims (10)
1. A portable power station instrument control system board card automatic testing device is characterized by comprising a case, a power supply module, a communication module, a programmable test calibration signal source, a relay module, a data acquisition module, a test fixture and a main controller; the test fixture is used for fixing the tested board card and providing a probe and an interface to be connected with the test point of the tested board card; the main controller is in communication connection with the communication module, the programmable test calibration signal source, the relay module and the data acquisition module through the USB port, and the communication module is connected between the main controller and the test fixture and used for realizing information interaction between the main controller and the test fixture; each signal output channel of the programmable test calibration signal source is connected with each channel of the relay module, and each channel of the relay module is electrically connected with the test point of the tested board card through the test fixture; the programmable test calibration signal source is used for providing a test excitation signal or a calibration signal for the tested board card; the data acquisition module is electrically connected with the test fixture and is used for acquiring test signals of the tested board card and feeding the test signals back to the main controller; the relay module realizes the connection of each channel between the programmable test calibration signal source and the tested board card through channel switching and is used for introducing a test excitation signal or a calibration signal into the tested board card; the main controller is used for sending instructions to control the programmable test calibration signal source to generate test excitation signals or calibration signals, controlling the relay module to realize automatic channel switching, controlling the data acquisition module to acquire the test signals, and obtaining test results or calibrating the tested board card.
2. The automatic testing device for the portable power station instrument control system board card as claimed in claim 1, wherein the testing fixture comprises a female fixture and a male fixture, the female fixture is fixedly arranged on the case, the male fixture and the female fixture are detachably connected through a mutually matched plug interface, and the interface and the probe are arranged on the male fixture.
3. The device for automatically testing the portable power station instrument control system board card as claimed in claim 1, wherein the communication module is an SPI communication module, and the main controller is connected with the communication module through a USB port.
4. The portable power station instrument control system board automatic testing device of claim 1, characterized in that: the programmable test calibration signal source adopts a digital source meter.
5. The device for automatically testing a portable power station instrumentation control system board of claim 1 wherein said relay modules comprise primary matrix relays and secondary solid state relay modules cascaded with the primary matrix relays.
6. The portable power station instrumentation control system board automatic test device of claim 1 wherein said power module comprises a power distributor, a switching power supply and a UPS power supply, the switching power supply having an input connected to the power distributor output and an output connected to the test fixture for providing power to the test fixture and for providing power monitoring protection, the UPS power supply for providing an uninterrupted power supply to the automatic test device.
7. The device for automatically testing the portable power station instrument control system board card as claimed in claim 1, wherein the main controller is a PC.
8. The automatic test device for the board card of the portable power station instrument control system as claimed in claim 1, wherein the main controller is internally provided with a test function module and a calibration function module, the test function module is used for outputting a control signal to control the test working process of the board card, and the calibration function module is used for outputting a control signal to control the calibration working process of the board card.
9. The automatic testing device for the portable power station instrument control system board card as claimed in claim 1, wherein the power module, the communication module, the programmable testing calibration signal source, the relay module, the data acquisition module and the testing fixture are integrally arranged in a case, operating buttons and connecting interfaces of the modules are led out of the case, and the testing fixture is exposed.
10. A power station instrument control system board automatic test method based on the portable power station instrument control system board automatic test device of any one of claims 1 to 9, characterized by comprising the steps of:
step 1, mounting a tested board card on a test fixture, and correspondingly connecting a test point with an interface and a probe of the test fixture;
step 2, starting the automatic testing device, sending a testing or calibrating instruction by the main controller, communicating with the communication module, the programmable testing and calibrating signal source, the relay module, the data acquisition module and the board card to be tested through the USB port, controlling the programmable testing and calibrating signal source to generate a testing excitation signal or a calibrating signal, controlling the relay module to conduct a corresponding channel, generating a feedback testing signal under the action of the testing excitation signal at the board card testing point to be tested, and acquiring the feedback testing signal of the board card to be tested by the data acquisition module to be transmitted back to the main controller;
and 3, the main controller receives the test data, compares the data to obtain a test result, or calibrates the tested board card according to the test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111287889.2A CN114035025A (en) | 2021-11-02 | 2021-11-02 | Automatic testing device and method for portable power station instrument control system board card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111287889.2A CN114035025A (en) | 2021-11-02 | 2021-11-02 | Automatic testing device and method for portable power station instrument control system board card |
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| Publication Number | Publication Date |
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| CN114035025A true CN114035025A (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111287889.2A Pending CN114035025A (en) | 2021-11-02 | 2021-11-02 | Automatic testing device and method for portable power station instrument control system board card |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116736072A (en) * | 2023-05-04 | 2023-09-12 | 国能智深(天津)控制技术有限公司 | Card test control method, device, equipment and storage medium |
| CN117572033A (en) * | 2023-11-03 | 2024-02-20 | 福氏新能源技术(上海)有限公司 | Automatic test equipment applicable to PCBA of different types |
-
2021
- 2021-11-02 CN CN202111287889.2A patent/CN114035025A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116736072A (en) * | 2023-05-04 | 2023-09-12 | 国能智深(天津)控制技术有限公司 | Card test control method, device, equipment and storage medium |
| CN116736072B (en) * | 2023-05-04 | 2024-03-26 | 国能智深(天津)控制技术有限公司 | Card test control method, device, equipment and storage medium |
| CN117572033A (en) * | 2023-11-03 | 2024-02-20 | 福氏新能源技术(上海)有限公司 | Automatic test equipment applicable to PCBA of different types |
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