CN205003543U - Terminal control module testing device is gathered to special change - Google Patents

Abstract

The embodiment of the utility model discloses a test device for a control module of a special variable acquisition terminal. The test device includes: a power supply circuit for supplying power to the test device; the control module interface circuit for connecting the control module; a sensor module for testing whether the control module interfaces with the control module The circuit is electrically connected; the level signal test circuit is used to test the level state of the relay output port in the control module; the photosensitive detection circuit is used to detect the display status of each indicator light on the control module; The micro control unit is used to issue various test commands to complete the performance test of the control module, and form performance test results; the test result output circuit is used to output the performance test results. The testing efficiency of testing the control module can be effectively improved by using the testing device provided by the utility model.

Description

A special variable acquisition terminal control module testing device

technical field

The embodiment of the utility model relates to the field of electric energy measurement, in particular to a test device for a control module of a special variable acquisition terminal.

Background technique

The special transformer collection terminal is a device for collecting electricity consumption information of special transformer users. For the special variable collection terminal, the control module is one of its core modules, and the quality of the control module directly affects the operation and working effect of the special variable collection terminal.

In industrial production, the control modules obtained from production need to be tested, and after the test, the control modules that pass the test are installed on the special variable acquisition terminal. At present, the test of the control module of the specific variable collection terminal is mainly done manually. The specific steps of manually testing the control module are as follows: first, the tester completes the connection between the control module and the host computer using the power line and signal line; To test the performance of the control module, the tester uses a multimeter to test the level status of the output terminal of the control module relay, and observes the display status of the multimeter with the naked eye to determine whether the performance of the control module is normal. Finally, the multimeter is removed, and the connection between the control module and the host computer is disconnected.

Because in the prior art, the test to the control module is mainly completed manually, in the test process, each control module needs to be electrically connected manually, and the test commands are input one by one to perform the test. After the test, the disconnection Open the connection between the multimeter, the host computer and the control module. These processes will undoubtedly take a lot of time, resulting in low test efficiency and slowing down the speed of mass production of specific variable acquisition terminals.

Utility model content

The utility model provides a test device for a control module of a special variable collection terminal, so as to improve the test efficiency of testing the control module of a special variable collection terminal.

The embodiment of the utility model provides a control module test device for a special variable acquisition terminal, including a power supply circuit, a control module interface circuit, a sensor module, a micro control unit, a level signal test circuit, a photosensitive detection circuit and a test result output circuit; wherein , the power supply circuit, the control module interface circuit, the sensor module, the level signal test circuit, the photosensitive detection circuit and the test result output circuit are all connected to the micro control unit; The power supply circuit is used to supply power to the test device; the control module interface circuit is used to electrically connect the control module to the test device; the sensor module is used to test whether the control module is connected to the test device The interface circuit of the control module is electrically connected; the level signal test circuit is used to test the level state of the relay output port in the control module; The display state of the light is detected; the micro-control unit is used to issue various test commands to complete the test of the performance of the control module, and according to the test results of the level signal test circuit and the photosensitive detection circuit Perform analysis to form performance test results; the test result output circuit is used to output the various performance test results.

Further, the interface circuit of the control module includes a plurality of wires, the wires are used to connect the ports of the control module, and the wires are arranged and fixed in order according to the positions of the ports of the control module.

Further, the test result output circuit includes indicator lights; the number of the indicator lights is consistent with the number of test items for testing the performance of the control module; each of the indicator lights is used to display the performance test results.

Further, the micro control unit can also be used to form a final test result according to the performance test results; the test result output circuit also includes an indicator light for displaying the final test result.

Further, an air valve device is also included, the air valve device is located near the interface circuit of the control module, and is used for pushing the control module into or out of the test device, and is connected with the interface circuit of the control module.

Further, it also includes a man-machine interface unit, connected with the micro-control unit, for enabling the tester to upgrade the program of the test device and set the parameters.

The embodiment of the utility model can automatically test the control module of the special variable acquisition terminal by designing a test device for the control module of the special variable acquisition terminal, and solve the problem that the test efficiency is not high when the control module is measured manually. A test efficiency for testing the control module is provided.

Description of drawings

Fig. 1 is a schematic diagram of a test device for the control module of the special variable acquisition terminal provided by Embodiment 1 of the present invention;

Fig. 2a and Fig. 2b are the specific structural diagrams of a testing device for the control module of the special variable acquisition terminal provided by the second embodiment of the utility model.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. It can be understood that the specific embodiments described here are only used to explain the utility model, rather than limit the utility model. In addition, it should be noted that, for the convenience of description, only some structures related to the present utility model are shown in the drawings but not all structures.

Embodiment one

Fig. 1 is a test device for the control module of the special variable acquisition terminal provided by the first embodiment of the utility model. The special variable acquisition terminal control module testing device includes a power supply circuit 11, a control module interface circuit 12, a sensor module 13, a micro control unit 14, a level signal testing circuit 15, a photosensitive detection circuit 16 and a test result output circuit 17; wherein, Power circuit 11, control module interface circuit 12, sensor module 13, level signal test circuit 15, photosensitive detection circuit 16 and test result output circuit 17 are all connected with micro control unit 14; Power circuit 11 is used for described test Device power supply; control module interface circuit 12, for electrically connecting the control module with the test device; sensor module 13, for testing whether the control module is electrically connected with the control module interface circuit 12; level signal test The circuit 15 is used to test the level state of the relay output port in the control module; the photosensitive detection circuit 16 is used to detect the display status of each indicator light on the control module; the micro control unit 14 is used for Send each test command to complete the test of the various performances of the control module, and analyze according to the test results of the level signal test circuit 15 and the photosensitive detection circuit 16 to form performance test results; the test result output circuit 17 is used to The output of the performance test results described in each item.

Wherein, the control module interface circuit includes a plurality of electric wires for electrically connecting with the control module and data lines for signal transmission with the control module. When connecting, the tester connects each electric wire and each data wire to each port on the control module in sequence. However, considering that the testers are prone to wiring errors during the operation process, resulting in misjudgment of the test status, low test efficiency, and even hidden dangers of electric shock, it is easy to cause safety accidents. Preferably, the interface circuit of the control module includes a plurality of wires, the wires are used to connect the ports of the control module, and the wires are arranged and fixed in order according to the positions of the ports of the control module. For example, each of the wires is fixed on a frame, the size of the frame can just fit the control module, and the material of the frame is an electrical insulating material. The specific implementation method is that after the control module is put into the frame, holes are provided on the frame at positions corresponding to the ports of the control module. The wires corresponding to the ports pass through and are fixed on the holes. When in use, after the control module is placed on the frame, the joints of the wires are just electrically connected to the ports of the control module.

The sensor module is located near the interface circuit of the control module and is electrically connected to the micro control unit for detecting whether the control module is electrically connected to the interface circuit of the control module. If the test is passed, it is determined that the electrical connection between the control module and the interface circuit of the control module is completed, and the signal is transmitted to the micro control unit, so that the micro control unit can issue a test command.

After receiving the signal that the electrical connection between the control module and the interface circuit of the control module is completed, the micro control unit sequentially sends out various test commands. The test commands include one round of opening and closing commands, two rounds of opening and closing commands, industrial control commands, electric control commands, and alarm output commands. The interval time of sending the various commands can be manually set, for example, the interval time of every two commands is 3min, wherein the interval time of every two commands can be the same or different, and the sensor module can also be used to check the last one The completion of the command is detected, and according to the detection result, the time to issue the next command is determined. Specifically, through the detection of the sensor module, it is found that after the last test command is sent, the control module has made a corresponding response, and the performance test result has been formed, and the sensor sends a signal to the micro control unit, so After receiving the signal, the micro control unit sends the next test command.

After the micro control unit sends the test command, the level signal test circuit measures the level value of the relay output port in the control module, and the level value of the relay output port in the control module value is sent to the microcontroller unit. At the same time, the photosensitive detection circuit detects the display state of each indicator light on the control module, and sends the indication state of each indicator light on the control module as a signal to the micro control unit.

After the micro control unit receives the level value of the relay output port in the control module and the signal indicating the state of each indicator light on the control module, it compares the level value of the relay output port in the control module with the standard voltage Compare the range of the average value, and judge whether it is within the range of the standard level value, and compare the indication status of each indicator light on the control module with the display status of the preset standard indicator light, and judge whether the control Whether the display state of each indicator light on the module is consistent with the preset standard indicator light display state. If the above two indicators are all qualified, a performance test result is formed that the performance of the control module is qualified; otherwise, a performance test result is formed that the performance of the control module is unqualified.

There are many output methods of the test result output circuit, the performance test result can be output through the display screen, and the performance test result can also be output through the indicator light. If the display screen is used to output the performance test results, the display screen can use Chinese, English, symbols or a combination of them to represent each of the performance test results. Preferably, the test result output circuit includes indicator lights; the number of the indicator lights is consistent with the number of test items for testing the performance of the control module; each of the indicator lights is used to display the performance test results. Because in production and manufacturing, testers have to test hundreds of thousands of the above-mentioned control modules every day, it is easier to identify the various performance test results displayed by using the indicator light changes than by using the display screen to display the various performance test results , which can improve the work efficiency of testers. In addition, the method of using the indicator light to display the performance test result may be to indicate the performance test result through the color change of the indicator light, or to indicate the performance test result through the flickering of the index light.

Further, preferably, the micro-control unit can also be used to form a final test result according to the performance test results of each item; the test result output circuit also includes an indicator light for displaying the final test result, specifically , after the micro-control unit completes the detection of the various performances of the control module, if the test results of the various performances of the control module are all qualified, then form the final test result that the control module is qualified; otherwise, form the Final test result for control module failure. The test result is displayed through the test result output circuit. In this way, the tester only needs to observe the display state of the indicator light used to represent the final test result to know whether the control module is qualified and classify it, which improves the work efficiency of the tester.

The various technical solutions provided in this embodiment make up for the gap that there is currently no device for automatically completing the test of whether the control module of the special variable acquisition terminal is qualified by designing the test device for the control module of the special variable acquisition terminal, and solve the problem of manual measurement of the control module. When the test efficiency is not high, the test efficiency of the control module is improved.

Embodiment two

Fig. 2a and Fig. 2b are specific structural schematic diagrams of a test device for the control module of the specific change collection terminal provided in this embodiment, and are a specific example of the test device for the control module of the special change collection terminal provided in the first embodiment.

In FIG. 2 a , the testing device for the control module of the specific variable acquisition terminal has a rectangular parallelepiped shell 21 . A limiting device 22 and a pressing plate 23 are arranged on the top of the housing 21; connecting probes 24 are arranged on the limiting device 22 and the pressing plate 23, and the connecting probes 24 are connected with each wiring in the interface circuit of the control module for connecting with Each port of the control module is connected. Specifically, the limiting device 22 is in the shape of a box, and a groove is provided inside, and the groove is used to place and fix the control module to be detected. The pressing plate 23 is located above the limiting device 22 . After the control module to be detected is put into the groove inside the limiting device 22, the pressing plate 23 is put down so that it is covered on the limiting device 22, and at the same time The connecting probes 24 on the pressure plate 23 are connected with each port of the control module, so as to further fix the control module to be tested. An indicator light state monitoring device 25 is arranged inside the groove of the limiting device 22, and the indicator light state monitoring device 25 is a part of the photosensitive detection circuit, which is used to detect the display status of each indicator light on the control module during the test. Whether it is consistent with the display state of the preset standard indicator light. A switch 26 and a test result indicator light 27 of the test device are provided on the side wall of the casing 21. The switch 26 is used to control the opening and closing of the test device, and the test result indicator light 27 is a part of the test result output circuit. to output test results.

The lifting of the pressing plate can be realized by manually lifting or lowering the pressing plate by the tester. Preferably, the specific variable acquisition terminal control module may also include a driving device and a transmission device. The drive device is connected to the transmission device, and the transmission device is connected to the pressing plate. Driven by the driving device, the transmission device is controlled to generate a transmission effect, and at the same time, the lifting of the pressing plate is controlled. The driving device can be an electric driving device or a manual driving device, and the transmission device can control the lifting of the pressing plate through a screw or a gear. Fig. 2b has provided a kind of mode of control platen lifting, and described specific variable collection terminal control module test device also comprises cylinder control circuit, comprises cylinder 28 and solenoid valve 29, and described solenoid valve 29 is connected with described micro control unit , the cylinder 28 is connected with the electromagnetic valve 29 on the one hand, and connected with the pressure plate 23 on the other hand, for controlling the lifting of the pressure plate 23 . Specifically, the micro-control unit controls the charging and discharging of the air cylinder 28 and the lifting of the pressing plate 23 by controlling the power on and off of the solenoid valve 29 .

The specific operation process is: when the sensor module detects that the control module has been correctly put into the limit device 22 and is electrically connected with the connecting probe 24 on the limit device 22, the signal is transmitted to the micro-control unit, after the micro-control unit receives the signal that the electrical connection between the control module and the connection probe 24 on the limit device 22 is completed, it controls the cylinder control circuit to put down the pressing plate 23 , so that the connection probe 24 located on the pressing plate 23 is connected to the micro-control unit; when the micro-control unit finishes testing the various performances of the control module, the micro-control unit controls the cylinder by controlling the circuit, the pressure plate 23 is raised to facilitate the tester to take out the control module.

In FIG. 2 b , a power supply circuit 30 is disposed inside the casing 21 . The power supply circuit 30 is used to supply power to various components of the testing device.

It should be noted that in Fig. 2a and Fig. 2b, the micro control unit, the level signal test circuit and the sensor module are not shown.

In addition, preferably, the test device further includes an air valve device, the valve device is located near the interface circuit of the control module, and is used to push the control module into or out of the test device, and communicate with the control module. The module interface circuit is connected. By setting the air valve device, the control module can be quickly and conveniently put into or taken out of the limit device, and it can also prevent the tester from manually putting the control module into the limit device. The magnitude and direction of the force exerted by the control module is inappropriate to damage the control module.

In addition, optionally, the test device further includes a man-machine interface unit connected to the micro-control unit for enabling testers to upgrade programs of the test device and set parameters. With the development of science and technology at any time, the power control device will also be continuously updated to meet the needs of users. In addition, in different situations, users have different demands on the specific variable collection terminal, and the design of the human-machine interface unit can help users realize human-computer interaction, so that they can serve users better.

It is worth noting that the test device for the control module of the special acquisition terminal provided in Figure 2a and Figure 2b includes two limit devices 22 for placing the control module, and correspondingly two sets of control modules are required. Module interface circuit, the sensor module, the level signal test circuit, the photosensitive detection circuit and the test result output circuit. In specific design, a test device should include at least one limit device and other corresponding components. The more limit devices and other corresponding components included in a test device, the more control modules the device can test at the same time, which is more conducive to improving the test efficiency of the control modules.

The specific operation method of the special change collection terminal control module testing device provided in this embodiment is:

First, after the test device is powered on, press the switch to start the system of the test device;

Secondly, when it is determined that the system of the test device is started, the control module to be detected is put into the limit device;

Finally, after the test device completes the various performance tests of the control modules to be tested in turn and forms the final test results, the control modules that have been tested are taken out, and the final test results output by the test device Describe the classification of control modules that have been tested.

Note that the above are only preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the utility model. The scope of the present invention is determined by the appended claims.

Claims (8)

1. A special variable acquisition terminal control module testing device, characterized in that: Including power supply circuit, control module interface circuit, sensor module, micro control unit, level signal test circuit, photosensitive detection circuit and test result output circuit; Wherein, the power supply circuit, the control module interface circuit, the sensor module, the level signal test circuit, the photosensitive detection circuit and the test result output circuit are all connected to the micro control unit; The power supply circuit is used to supply power to the test device; The control module interface circuit is used to electrically connect the control module with the test device; The sensor module is used to test whether the control module is electrically connected to the interface circuit of the control module; The level signal test circuit is used to test the level state of the relay output port in the control module; The photosensitive detection circuit is used to detect the display status of each indicator light on the control module; The micro control unit is used to issue various test commands to complete the performance test of the control module, and analyze the test results of the level signal test circuit and the photosensitive detection circuit to form a performance test result ; The test result output circuit is used to output the performance test results of each item. 2. special variable collection terminal control module testing device according to claim 1, is characterized in that, comprises a plurality of wirings in the described control module interface circuit, and described wiring is used to connect each port of described control module, so The wiring is arranged and fixed in order according to the positions of the ports of the control module. 3. special variable acquisition terminal control module testing device according to claim 2, is characterized in that; It also includes a limit device and a pressure plate; Both the limiting device and the pressing plate are provided with connection probes, and the connection probes are connected to the wirings in the interface circuit of the control module, and are used to connect to the ports of the control module. 4. The specific variable acquisition terminal control module testing device according to claim 3, characterized in that: it also includes a cylinder control circuit, including a solenoid valve and a cylinder, the solenoid valve is connected with the micro control unit, and the cylinder On the one hand, it is connected with the electromagnetic valve, and on the other hand, it is connected with the pressing plate, and is used to control the lifting of the pressing plate. 5. special variable collection terminal control module testing device according to claim 1, is characterized in that: The test result output circuit includes an indicator light; The number of the indicator lights is consistent with the number of test items for testing the performance of the control module; Each of the indicator lights is respectively used to display the performance test results of each item. 6. special variable collection terminal control module testing device according to claim 5, is characterized in that: The micro control unit can also be used to form a final test result according to the performance test results of each item; The test result output circuit also includes an indicator light for displaying the final test result. 7. The test device for the control module of the specific variable acquisition terminal according to claim 1, characterized in that: it also includes an air valve device, the air valve device is located near the interface circuit of the control module, and is used to push the control module into or out of the test device, and connected with the interface circuit of the control module. 8. special variable collection terminal control module testing device according to claim 1, is characterized in that: also comprise man-machine interface unit, be connected with described micro-control unit, be used for making the program of tester to described testing device Upgrade and set parameters.