CN211905586U - Multi-module test circuit of water meter mainboard - Google Patents
Multi-module test circuit of water meter mainboard Download PDFInfo
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- CN211905586U CN211905586U CN202020118993.3U CN202020118993U CN211905586U CN 211905586 U CN211905586 U CN 211905586U CN 202020118993 U CN202020118993 U CN 202020118993U CN 211905586 U CN211905586 U CN 211905586U
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Abstract
The utility model relates to a water meter test circuit field, in particular to a multi-module test circuit of a water meter mainboard, which comprises a main control end and a detected mainboard, wherein the main control end is electrically connected with the detected mainboard through a data module, the main control end comprises a main control module, a main control end power supply module, a main control end serial communication module, a main control end wireless communication module and a flow test module, the flow test module is electrically connected with the detected mainboard and the main control module and is used for testing the flow of the detected mainboard and transmitting the flow test result to the main control module, the main control end wireless communication module is electrically connected with the main control module and is used for testing whether the wireless module of the detected mainboard works or not, the main control end power supply module is electrically connected with the main control module to supply power to the main control end, the main control end serial communication module is electrically connected with the main control module, the utility model integrates, and the multi-module test is carried out, so that the labor cost of the test device is reduced.
Description
Technical Field
The utility model relates to a touch screen field specifically is a multi-module test circuit who relates to a water gauge mainboard.
Background
At the original production line that supersound water gauge detected, it goes on to detect the inside mainboard of supersound water gauge step by step, test circuit board needs a station promptly, test circuit board's infrared communication function needs a station, test circuit board measurement function needs a station, test circuit board remote communication function needs a station etc. and fixed circuit board that can't be fine in the testing process, it is the direct touch circuit mainboard that needs artifical hand, can bring very big electrostatic interference to produce destructive influence to the mainboard like this.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a multimode test circuit of water gauge mainboard is provided, this technical scheme has solved the problem that detects supersound water gauge circuit board at present and needs a plurality of devices, with multiple test circuit integration on a circuit board, carries out the multimode test, has reduced testing arrangement's cost of labor.
In order to solve the technical problem, the utility model provides a following technical scheme:
the multi-module test circuit of the water meter mainboard comprises a main control end and a detected mainboard, wherein the main control end is electrically connected with the detected mainboard through a data module;
the main control end includes main control module, main control end power module, main control end serial communication module, main control end wireless communication module and flow test module, flow test module with be detected the mainboard main control module electric connection for test and give main control module with flow test result transmission to the flow that is detected the mainboard, main control end wireless communication module and main control module electric connection for whether the wireless module that is used for the test to be detected the mainboard works, main control end power module and main control module electric connection, supply power for the main control end, main control end serial communication module and main control module electric connection for data transmission for the host computer that comes from by the test mainboard that the main control end received.
Optionally, the flow test module includes quiet water flow test module, moves water flow test module and flow test isolation change over switch module, quiet water flow test module with move water flow test module with be used for detecting quiet water lower flow static value and the underwater flow velocity of flow that moves respectively by mainboard electric connection, quiet water flow test module and the underwater flow test module still electric connection have the change over switch module is kept apart in the flow test, flow test isolation change over switch module with host system electric connection for switch the test state of being detected circuit mainboard quiet water and the under the water condition of moving.
Optionally, the main control module adopts an MSP430RF6972IPMR chip.
Optionally, the detected circuit boards are a 280W-SI series ultrasonic water meter mainboard and a 280W-CI series ultrasonic water meter mainboard.
Optionally, the tested mainboard is electrically connected with a tested end power supply module, a tested end wireless communication module, an ammeter and a motor, the tested end power supply module is used for supplying power to the tested mainboard, the tested end wireless communication module is used for receiving wireless data by the test circuit and sending the wireless data to the main control module, and the ammeter is used for carrying out current detection on the tested mainboard.
Optionally, the data transmission module adopts an infrared communication mode.
Compared with the prior art, the utility model beneficial effect who has is:
the efficiency of the test of mainboard in the supersound water gauge is integrated on a circuit board to the production test in having improved, carries out the multimode test with multiple test circuit, has reduced testing arrangement's cost of labor, has reduced testing arrangement's quantity, has practiced thrift space resources, does not pass through artifical direct contact circuit board in the testing process, only need press the on & off switch and can test, the simplified operation.
Drawings
Fig. 1 is a block diagram of the testing terminal of the present invention;
FIG. 2 is a block diagram of the present invention;
fig. 3 is a schematic circuit diagram of the main control module of the present invention;
fig. 4 is a schematic circuit diagram of the interface connection of the main control module according to the present invention;
fig. 5 is a schematic circuit diagram of the main control module indicator light and the function keys of the present invention;
fig. 6 is a schematic circuit diagram of the wireless communication module of the main control end of the present invention;
fig. 7 is a schematic circuit diagram of a watchdog circuit of the main control module of the present invention;
fig. 8 is a schematic circuit diagram of the serial communication module of the main control end of the present invention;
fig. 9 is a schematic circuit diagram of the middle flow test isolation switch module of the present invention;
fig. 10, fig. 11, fig. 12 and fig. 13 are schematic circuit diagrams illustrating a circuit for testing the M-Bus serial communication mode of the circuit board to be tested by the master control end according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As a preferred embodiment of the present invention, the present invention provides a multi-module test circuit for a water meter motherboard, which comprises a main control end and a tested motherboard, wherein the main control end and the tested motherboard are electrically connected through a data module;
the main control end includes main control module, main control end power module, main control end serial communication module, main control end wireless communication module and flow test module, flow test module with be detected the mainboard main control module electric connection for test and give main control module with flow test result transmission to the flow that is detected the mainboard, main control end wireless communication module and main control module electric connection for whether the wireless module that is used for the test to be detected the mainboard works, main control end power module and main control module electric connection, supply power for the main control end, main control end serial communication module and main control module electric connection for data transmission for the host computer that comes from by the test mainboard that the main control end received.
Through the design of this test circuit, in having improved the production test, to the efficiency of software testing of mainboard in the supersound water gauge, with multiple test circuit integration on a circuit board, carry out the multimode test, reduced testing arrangement's cost of labor, reduced testing arrangement's quantity, practiced thrift space resources, do not pass through artifical direct contact circuit board in the testing process, only need press the on & off switch and can test, simplified operation.
Referring to fig. 1 to 13, JP1 is a connection port for external 12V dc power input, JP2 is a connection port for RS-485 communication interface, JP3 is a connection port for a still water sensor device used by a still water flow rate detection module, JP4 is a connection port for a moving water sensor device used by a moving water flow rate detection module, JP5 and JP6 are connection ports for testing a 280W-SI series ultrasonic water meter main board, JP7 is a connection port for a motor, JP8 is a connection port for a wireless communication module at a tested end, JP9 and JP10 are connection ports for testing a 280W-CI series ultrasonic water meter main board, JP11 is a connection port for a power supply of the tested main board, JP12 is a connection port for a current meter, JP14 and JP15 are connection ports for testing a W-CI series ultrasonic water meter main board to provide external auxiliary equipment, D1-D6 is an indicator light, and B1-B5 function keys.
The test circuit comprises a main control end and a detected mainboard, wherein the main control module adopts an MSP430RF6972IPMR chip, the detected circuit boards are a 280W-SI series ultrasonic water meter mainboard and a 280W-CI series ultrasonic water meter mainboard, the main control end and the detected mainboard are electrically connected through a data module, the data transmission module adopts an infrared communication mode, and parameter data in the mainboard of the detected circuit are connected with the main control module through an infrared communication interface.
The main control end comprises a main control module, a main control end power supply module, a main control end serial communication module, a main control end wireless communication module and a flow test module, the flow test module is connected with a detected mainboard, and the main control module is electrically connected with the detected mainboard and used for testing the flow of the detected mainboard and transmitting the flow test result to the main control module, the main control end wireless communication module is electrically connected with the main control module and used for testing whether the wireless module of the detected mainboard works, and the main control end wireless communication module is used for testing whether the wireless communication function of a tested mainboard circuit with a wireless function (with the wireless module) is intact. The main control end power supply module is electrically connected with the main control module and used for supplying power to the main control end, the main control end serial communication module is electrically connected with the main control module and used for transmitting data received by the main control end and coming from a tested mainboard to an upper computer, the main control end serial communication module adopts an RS-485 communication mode and is connected with the upper computer through an RS-485 serial communication interface, a measuring result can be uploaded to the upper computer through the RS-485 serial communication interface, and the testing result is visually displayed.
The flow test module comprises a static water flow test module, a dynamic water flow test module and a flow test isolation change-over switch module, the static water flow test module and the dynamic water flow test module are electrically connected with the detected mainboard and are respectively used for detecting static values of flow under static water and flow velocity under dynamic water, the static water flow test module and the dynamic water flow test module are also electrically connected with the flow test isolation change-over switch module, the flow test isolation change-over switch module is electrically connected with the main control module and is used for switching test states of flow under static water and dynamic water conditions of the mainboard of the detected circuit.
The tested mainboard is electrically connected with a tested end power supply module, a tested end wireless communication module, an ammeter and a motor, the tested end power supply module is used for supplying power to the tested mainboard, the tested end wireless communication module is used for receiving wireless data through a test circuit and sending the wireless data to the main control module, and the ammeter is used for carrying out current detection on the tested mainboard.
The working principle of the detection circuit is as follows: after the corresponding connection of each interface is finished, each test is carried out;
when the tested end wireless communication module of the tested mainboard is tested, the key Lora is pressed, after the key is pressed, the main control module receives the key information, the main control end wireless communication module test is started, the main control end wireless communication module electrically connected with the main control module sends data, after the tested end wireless communication module receives the data, the main control module sends a return data packet, the main control module receives the return data packet and analyzes the content of the return data packet, the tested end wireless communication module is qualified, and then the tested end wireless communication module is uploaded to the upper computer through the main control end serial port communication module and displayed,
when the cellular network function test of the tested mainboard is carried out, the key NB is pressed, and after the key is pressed, the main control module receives key information and starts the NB-Iot function test; the NB-Iot module is automatically connected with a network, after a proper time delay, the main control module reads an NB-Iot data packet of a tested mainboard, whether the NB-Iot module is qualified can be obtained by analyzing the data packet, and the NB-Iot module is uploaded to an upper computer through the main control end serial port communication module and displayed;
when the motor is tested, the switch of the motor is controlled through the keys OPEN and CLOSE, and after the keys are pressed, the main control module receives key information and starts the motor test; the motor makes corresponding action, and whether the motor is qualified or not can be obtained through observation.
After being connected with the main control end by the test mainboard, whether the mainboard that is being tested exists is being monitored in the circulation always, if monitor to be detected the mainboard and exist and not being detected, the main control board automatic start detects the function, detects its corresponding function, like still water and flowing water electric current, flowing water flow velocity, still water static value etc. after the test is accomplished, the data package passes through main control end serial port communication module and uploads to the host computer to show whether should be tested the mainboard qualified.
Claims (5)
1. A multi-module test circuit of a water meter mainboard is characterized by comprising a main control end and a detected mainboard, wherein the main control end is electrically connected with the detected mainboard through a data module;
the main control end includes main control module, main control end power module, main control end serial communication module, main control end wireless communication module and flow test module, flow test module with be detected the mainboard main control module electric connection for test and give main control module with flow test result transmission to the flow that is detected the mainboard, main control end wireless communication module and main control module electric connection for whether the wireless module that is used for the test to be detected the mainboard works, main control end power module and main control module electric connection, supply power for the main control end, main control end serial communication module and main control module electric connection for data transmission for the host computer that comes from by the test mainboard that the main control end received.
2. The multi-module test circuit of the water meter mainboard of claim 1, wherein the flow test module comprises a static water flow test module, a dynamic water flow test module and a flow test isolation switch module, the static water flow test module and the dynamic water flow test module are electrically connected with the detected mainboard and are respectively used for detecting static values of flow under static water and flow velocity of flow under dynamic water, the static water flow test module and the dynamic water flow test module are also electrically connected with the flow test isolation switch module, and the flow test isolation switch module is electrically connected with the main control module and is used for switching test states of flow under static water and dynamic water conditions of the detected circuit mainboard.
3. The water meter motherboard multi-module test circuit of claim 2, wherein the master control module utilizes an MSP430RF6972IPMR chip.
4. The multi-module test circuit of a water meter motherboard of claim 3, wherein the tested circuit boards are a 280W-SI series ultrasonic water meter motherboard and a 280W-CI series ultrasonic water meter motherboard.
5. The multi-module testing circuit of the water meter mainboard of claim 4, wherein the tested mainboard is electrically connected with a tested end power supply module, a tested end wireless communication module, an ammeter and a motor, the tested end power supply module is used for supplying power to the tested mainboard, the tested end wireless communication module is used for the tested circuit to receive wireless data and send the wireless data to the main control module, and the ammeter is used for detecting the current of the tested mainboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020118993.3U CN211905586U (en) | 2020-01-19 | 2020-01-19 | Multi-module test circuit of water meter mainboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020118993.3U CN211905586U (en) | 2020-01-19 | 2020-01-19 | Multi-module test circuit of water meter mainboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211905586U true CN211905586U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020118993.3U Active CN211905586U (en) | 2020-01-19 | 2020-01-19 | Multi-module test circuit of water meter mainboard |
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| CN (1) | CN211905586U (en) |
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2020
- 2020-01-19 CN CN202020118993.3U patent/CN211905586U/en active Active
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