CN110907721A - Control panel test system - Google Patents
Control panel test system Download PDFInfo
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- CN110907721A CN110907721A CN201911085587.XA CN201911085587A CN110907721A CN 110907721 A CN110907721 A CN 110907721A CN 201911085587 A CN201911085587 A CN 201911085587A CN 110907721 A CN110907721 A CN 110907721A
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- testing
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2834—Automated test systems [ATE]; using microprocessors or computers
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
A control panel test system belongs to the technical field of control panel testing. The invention comprises a sensor testing component, a data acquisition component and a data acquisition component, wherein the sensor testing component is used for detecting the acquisition performance of a control board on related information; the switching value testing assembly is used for testing the switching value state of the control board; the PWM testing component is used for testing the duty ratio of the control board; the CAN tool is used for acquiring the test data of the test assembly and transmitting the test data to the upper computer test software; and the upper computer test software is used for controlling the related test components to perform control panel function test and verification, and receiving and counting test data. The invention can conveniently and quickly test and check the functions of the control panel, thereby effectively avoiding the quality hidden trouble.
Description
Technical Field
The invention relates to the technical field of control board testing, in particular to a control board testing system.
Background
In the technical field of electronic equipment, for the defective products of detection circuitry control panel, current mode is to detect with the help of the complete machine, utilizes complete machine installation test record test result promptly, and the test extremely wastes time and labour like this, appears functional test incomplete moreover easily, inspects scheduling problem not in place, if the test defective rate is high, tears the machine of trading and causes the complete machine damaged easily. The data transmission problem is that the stability of some communication interfaces cannot be judged, and the extremely many communication interfaces also need a series of communication software to support, which is troublesome. For the use of sensors used in some high-precision occasions, it is also a difficult problem to select and use and match proper sampling data.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a control board testing system which can conveniently and quickly test and check the functions of a control board and effectively avoid quality hidden troubles.
The purpose of the invention is realized by the following technical scheme:
a control board test system, comprising:
the sensor testing component is used for detecting the acquisition performance of the control board on the related information;
the switching value testing assembly is used for testing the switching value state of the control board;
the PWM testing component is used for testing the duty ratio of the control board;
the CAN tool is used for acquiring the test data of the test assembly and transmitting the test data to the upper computer test software;
and the upper computer test software is used for controlling the related test components to perform control panel function test and verification, and receiving and counting test data.
Preferably, the sensor testing assembly comprises a temperature sensor, a voltage sensor, a current sensor, a concentration sensor, a pressure sensor and a testing voltage sensor, wherein the positive electrode and the negative electrode of the temperature sensor are connected with a resistor, the input ends of the voltage sensor, the current sensor, the concentration sensor and the pressure sensor are connected in series, the output end of the testing voltage sensor is electrically connected with the voltage sensor, and the input end of the testing voltage sensor is electrically connected with a DC power supply.
Preferably, the number of the temperature sensors is at least two.
Preferably, the switching value testing assembly comprises a plurality of electromagnetic valves and a plurality of LED running water lamps, and the electromagnetic valves are electrically connected with the LED indicating lamps.
Preferably, the PWM test component comprises a plurality of multimeters, and the PWM output end of the control board is connected with the voltage steps of the multimeters.
Preferably, the upper computer testing software includes:
the temperature display module is used for displaying the temperature information acquired by the control panel;
the sensor self-checking module is used for checking the programs of the control panel for collecting the related information in sequence;
the switching value testing module is used for controlling the opening and closing of a valve switch and recording the switching state information;
the PWM testing module is used for setting a duty ratio and testing whether the PWM is normal or not according to the relationship between the duty ratio and the voltage;
the sending module is used for sending related test instructions to the control board;
the receiving module is used for receiving test data of the test component;
the statistical module is used for counting the number of the detections and the reject ratio;
and the storage module is used for generating a table file and storing the statistical result of the statistical module.
Preferably, the upper computer testing software further includes:
and the communication function testing module is used for testing the communication functions of the common communication interfaces such as CAN, 232 and 485.
The invention has the advantages that:
1. can pass through the CAN instrument, with the help of the good or bad of the quick accurate conventional circuit of test of host computer, carry out automatic statistics to test data, the efficiency that very big improvement hardware circuit detected.
2. The data of the conventional communication interface circuit is sampled, and the stability of the data is judged by sending, receiving and comparing, so that a series of communication interface debugging tools are saved.
3. The sensors with high precision requirements can be independently detected and screened out for sampling of the sensors with high precision requirements, and automatic formula calibration is carried out for the sensors with differences.
4. The software can be used for controlling some conventional electronic components in a single step and also can be used for automatically controlling the conventional electronic components at regular time, such as the air volume of a fan, the heating temperature, the on-off time control of an electromagnetic valve and the like. The method can be used for the inspection of an integral circuit board and can also be used for the inspection of an individual component.
5. The quantity detected in real time and the reject ratio can be intelligently counted. And automatically generating a table file and storing the table file in a set computer directory for later calling and viewing.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a functional block diagram of the upper computer software;
fig. 3 is a schematic view of an operation interface of the verification test.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A control board test system, comprising:
the sensor testing component is used for detecting the acquisition performance of the control board on the related information;
the switching value testing assembly is used for testing the switching value state of the control board;
the PWM testing component is used for testing the duty ratio of the control board;
the CAN tool is used for acquiring the test data of the test assembly and transmitting the test data to the upper computer test software;
and the upper computer test software is used for controlling the related test components to perform control panel function test and verification, and receiving and counting test data.
Specifically, as shown in fig. 1, the sensor testing component includes a temperature sensor, a voltage sensor, a current sensor, a concentration sensor, a pressure sensor, and a testing voltage sensor.
The temperature sensors are respectively connected with a 10K resistor and used for inputting temperature signals to the control board, the temperature signals collected by the control board are transmitted to the upper computer through the CAN tool, the upper computer displays the temperature value, and whether the temperature collecting function of the control board is normal or not is judged through comparison between the temperature and the temperature value of the indoor thermometer, for example, the temperature difference is within +/-0.5 ℃, the control board is qualified, and otherwise, the control board is unqualified.
The input ends of the voltage sensor, the current sensor, the concentration sensor and the pressure sensor are connected in series, the output end of the test voltage sensor is electrically connected with the voltage sensor, and the input end of the test voltage sensor is electrically connected with a DC power supply. The operation process of the verification test is shown in fig. 3.
1. One of the 6 sensors is selected in the "sensor self-check" table, i.e. the mouse is used to click on the "select" box in the first column across which each sensor is located.
2. Selecting range 1 in corresponding "range", outputting voltage 30V with DC power supply, writing check value 30V in "set value", pressing enter key or lower check key, adding range 1 set value to measurement 1 in "check result" on right.
3. Selecting a measuring range 2 from the corresponding measuring ranges, outputting voltage 80V by using a DC power supply, filling a check value 80V in the set value, pressing an enter key or a lower check key, adding the set value of the measuring range 2 into a measurement 2 in a right check result, and automatically calculating a test formula. That is, similarly to calculating the function of a straight line passing through two points in an XY axis coordinate system, and the coordinates of the two points are calibrated by setting values, the obtained calculation formula is accurate, thereby realizing the calibration of the control board related acquisition program.
4. According to the steps, 6 groups of sensors are verified according to the same method.
5. The calculated values for 6 sets of sensors, with a DC supply input of 50V, are all within 50 ± 0.3V if normal.
The switching quantity testing assembly comprises a plurality of electromagnetic valves and a plurality of LED water flowing lamps, and the electromagnetic valves are electrically connected with LED indicating lamps. During testing: sequentially turning on an IO1-IO5 switch, and if the normal LED1-LED5 and 5 LED indicator lamps are sequentially turned on respectively; then the IO1-IO5 switches are turned off in sequence, and the 5 LED indicating lamps are turned off in sequence. Meanwhile, the LEDs 6-9 automatically turn on and off in sequence.
The PWM test component comprises two multimeters, and the PWM1 and PWM2 output ends of the control board are respectively connected with the voltage steps of the multimeter 1 and the multimeter 2. During the test, the initial default of PWM is 50%, and data is inaccurate at this moment, must all zero earlier before the test again, then through setting up the duty cycle to observe universal meter voltage value and judge whether the PWM test is normal, for example:
the upper computer test software comprises:
the temperature display module is used for displaying the temperature information acquired by the control panel;
the sensor self-checking module is used for checking the programs of the control panel for collecting the related information in sequence;
the switching value testing module is used for controlling the opening and closing of a valve switch and recording the switching state information;
the PWM testing module is used for setting a duty ratio and testing whether the PWM is normal or not according to the relationship between the duty ratio and the voltage;
the communication function testing module is used for testing the communication functions of common communication interfaces such as CAN, 232 and 485;
the sending module is used for sending related test instructions to the control board;
the receiving module is used for receiving test data of the test component;
the statistical module is used for counting the number of the detections and the reject ratio;
and the storage module is used for generating a table file and storing the statistical result of the statistical module.
The communication function testing module judges whether the communication function is normal or not mainly by comparing whether the written data and the read data are consistent or not. As follows:
when the CAN communication test is carried out, 2 bytes of data with 16 systems are input and sent at a CAN interface, the upper computer displays the returned data, and the test results are shown in the following table for example:
when the 232 communication function test is carried out, a serial port line is accessed, and a corresponding port is selected. Inputting and sending 2 bytes of data with a 16-system at a serial port test interface, displaying the returned data by an upper computer, and displaying test results such as the following table:
the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A control board testing system, comprising:
the sensor testing component is used for detecting the acquisition performance of the control board on the related information;
the switching value testing assembly is used for testing the switching value state of the control board;
the PWM testing component is used for testing the duty ratio of the control board;
the CAN tool is used for acquiring the test data of the test assembly and transmitting the test data to the upper computer test software;
and the upper computer test software is used for controlling the related test components to perform control panel function test and verification, and receiving and counting test data.
2. The control board testing system of claim 1, wherein the sensor testing assembly comprises a temperature sensor, a voltage sensor, a current sensor, a concentration sensor, a pressure sensor, and a testing voltage sensor, wherein a resistor is connected between the positive electrode and the negative electrode of the temperature sensor, the input ends of the voltage sensor, the current sensor, the concentration sensor, and the pressure sensor are connected in series, the output end of the testing voltage sensor is electrically connected to the voltage sensor, and the input end of the testing voltage sensor is electrically connected to a DC power supply.
3. The control board testing system of claim 1, wherein there are at least two of the temperature sensors.
4. The control board testing system according to claim 1, wherein the switching quantity testing assembly comprises a plurality of solenoid valves and a plurality of LED running lights, and the solenoid valves are electrically connected with LED indicator lights.
5. The control board test system of claim 1, wherein the PWM test assembly comprises a plurality of multimeters, and wherein the PWM output of the control board is connected to the voltage steps of the multimeters.
6. The control board test system of claim 1, wherein the upper computer test software comprises:
the temperature display module is used for displaying the temperature information acquired by the control panel;
the sensor self-checking module is used for checking the programs of the control panel for collecting the related information in sequence;
the switching value testing module is used for controlling the opening and closing of a valve switch and recording the switching state information;
the PWM testing module is used for setting a duty ratio and testing whether the PWM is normal or not according to the relationship between the duty ratio and the voltage;
the sending module is used for sending related test instructions to the control board;
the receiving module is used for receiving test data of the test component;
the statistical module is used for counting the number of the detections and the reject ratio;
and the storage module is used for generating a table file and storing the statistical result of the statistical module.
7. The control board test system of claim 6, wherein the upper computer test software further comprises:
and the communication function testing module is used for testing the communication functions of the common communication interfaces such as CAN, 232 and 485.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911085587.XA CN110907721A (en) | 2019-11-08 | 2019-11-08 | Control panel test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911085587.XA CN110907721A (en) | 2019-11-08 | 2019-11-08 | Control panel test system |
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| CN110907721A true CN110907721A (en) | 2020-03-24 |
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| CN101216520A (en) * | 2008-01-16 | 2008-07-09 | 谢步明 | Traction inverter control plate dedicated test circuit |
| CN102789230A (en) * | 2012-08-13 | 2012-11-21 | 海信（山东）空调有限公司 | Method for automatically detecting air conditioner outdoor unit control panel |
| CN105094117A (en) * | 2015-07-20 | 2015-11-25 | 广东格兰仕集团有限公司 | Device for automatically testing functions of electric control plate of air-conditioner indoor set |
| CN106291315A (en) * | 2016-07-25 | 2017-01-04 | 安徽中家智康科技有限公司 | The automatic test approach of domestic air conditioning panel FCT detecting tool |
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Application publication date: 20200324 |