Multi-station production test system based on FM33LE026 chip

Abstract

The utility model provides a multi-station production test system based on an FM33LE026 chip, and the system comprises a test station which is used for placing a detection meter; the FM33LE026 module is used for reading the internal data of the meter on the test station; the image recognition module is used for recognizing the number of meters on the test station; and the upper computer module is coupled with the FM33LE026 module and the image recognition module and is used for comparing the consistency of the internal data of the meter and the base number of the meter to obtain a test result, and the test result comprises a passing result and a non-passing result. And an FM33LE026 chip is used as a main control chip, so that the complexity of the circuit is reduced, and a circuit board is more convenient to integrate. A multi-station test structure is designed, a plurality of meters can be tested at the same time, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of meter testing, in particular to a multi-station production testing system based on an FM33LE026 chip. Background Art

[0002] Gas meters, ultrasonic water meters and other meters need to undergo calibration steps after production to ensure their accuracy and reliability;

[0003] Existing meter production inspection usually adopts manual testing of the electronic data inside the meter after water is passed through the meter, and the electronic data inside the meter is compared with the manually read meter base number for verification. Multiple workers are required to perform tests on the meters one by one, resulting in low testing efficiency. Utility Model Content

[0004] The present application provides a multi-station production test system based on the FM33LE026 chip, which can improve the test efficiency of the meter.

[0005] The first aspect of the present application provides a multi-station production test system based on the FM33LE026 chip;

[0006] A multi-station production test system based on FM33LE026 chip, including:

[0007] Test station, used to place test instruments;

[0008] FM33LE026 module, used to read the internal data of the meter on the test station;

[0009] An image recognition module is used to identify the number of meters on the test station;

[0010] The host computer module is coupled with the FM33LE026 module and the image recognition module, and is used to compare the internal data of the meter with the base data of the meter to obtain the test results, wherein the test results include pass results and fail results.

[0011] In the above scheme, the meter base number is identified by the image recognition module, the FM33LE026 module reads the internal data of the meter, and then the upper computer module automatically compares the internal data of the meter with the meter base number to complete the automatic detection. No human participation is required for the detection, and the test efficiency is high.

[0012] Preferably, the FM33LE026 module comprises:

[0013] Far and near infrared communication circuit unit, used to establish infrared communication with the meter;

[0014] The fm33le026 chip unit is coupled to the far and near infrared communication circuit unit and is used to read the internal data of the meter through infrared communication;

[0015] The power supply unit is used to supply power to the FM33LE026 chip unit and the far and near infrared communication circuit unit.

[0016] Preferably, the power supply unit adopts a TPS5430DDAR power module.

[0017] Preferably, a multi-station differentiation circuit module is installed at a test station and coupled to the FM33LE026 module, and is used to send station identification information to the FM33LE026 module; wherein, there are multiple test stations, and there are multiple FM33LE026 modules corresponding to the test stations.

[0018] Preferably, the multi-station differentiation circuit module includes variable resistor R4, variable resistor R5, variable resistor R6, variable resistor R7, variable resistor R8, and variable resistor R9. Variable resistor R4 and variable resistor R7 are connected in series between the first DC power supply and the ground terminal, variable resistor R5 and variable resistor R8 are connected in series between the second DC power supply and the ground terminal, and variable resistor R6 and variable resistor R9 are connected in series between the third DC power supply and the ground terminal. The station mark information sent is the level information jointly output by the electrical connection point between the variable resistor R4 and the variable resistor R7, the electrical connection point between the variable resistor R5 and the variable resistor R8, and the electrical connection point between the variable resistor R6 and the variable resistor R9.

[0019] Preferably, data is transmitted between the FM33LE026 module and the host computer module via a USB serial port.

[0020] Preferably, the USB serial port adopts a CH340g serial port.

[0021] Preferably, a communication connection is established between the image recognition module and the host computer module via an HTTP interface.

[0022] Preferably, it also includes:

[0023] The barcode scanning module is coupled to the FM33LE026 module and is used to scan the barcode of the meter to obtain the barcode information and transmit the barcode information to the FM33LE026 module.

[0024] Preferably, the code scanning module is a barcode gun.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Using FM33LE026 chip as the main control chip reduces the complexity of the circuit and makes the circuit board more convenient to integrate.

[0027] 2. Communicating via near infrared can reduce interference between workstations during infrared communication.

[0028] 3. A multi-station test structure is designed, which can test multiple instruments at the same time, thus improving production efficiency.

[0029] 4. It realizes automated testing and result analysis, and can collaborate with PLC to perform automated testing, greatly shortening the testing cycle and reducing testing costs.

[0030] 5. Use image recognition technology to take photos of the meter base number and write it into the meter to reduce errors caused by manual reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a multi-station production test system based on the FM33LE026 chip according to an embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the structure of the multi-station differentiation circuit module of the embodiment of the present application.

[0033] Explanation of the accompanying drawings: 1. Test station; 2. FM33LE026 module; 21. Far and near infrared communication circuit unit; 22. Fm33le026 chip unit; 23. Power supply unit; 3. Image recognition module; 4. Host computer module; 5. Multi-station differentiation circuit module; 6. Code scanning module. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0035] In the description of the embodiments of the present application, words such as "illustrative", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "illustrative", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "illustrative", "for example" or "for example" is intended to present related concepts in a concrete way.

[0036] In the description of the embodiments of the present application, the term "and / or" is only a kind of association relationship describing the associated objects, indicating that there may be three kinds of relationships, for example, A and / or B, which can represent: A exists alone, B exists alone, and A and B exist at the same time. In addition, unless otherwise specified, the meaning of the term "multiple" refers to two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0037] Scenario: Current meter production inspection and parameter setting mainly rely on manual testing and manual reading of meter base numbers. This method is inefficient and cannot meet the needs of large-scale, high-efficiency production. Due to manual operation, the test process is prone to human errors, which affects the accuracy of the test results. In addition, existing test tools are usually only applicable to specific models of meters, lack flexibility and adaptability, and are difficult to meet the product requirements of different models or different manufacturers. At the same time, due to the lack of a visual interface, the operation is complicated, which is not conducive to the use and maintenance of testers.

[0038] In order to solve these problems, the inventor has conducted an in-depth analysis of all the more than 20 fine processes in the current watch production line, and carefully evaluated the work efficiency of several workers involved. After comprehensive and detailed analysis and optimization, the technical solution of this application was designed to achieve a significant increase in production efficiency, an overall improvement in product quality, and an effective reduction in production costs. By optimizing the process, improving the level of equipment automation, and rationally allocating human resources, the production line that originally required 25 workers was streamlined to only 10 to 15 workers, thereby achieving efficient and economical full production while ensuring the quality of the watch.

[0039] The terms used in this application include:

[0040] Fm33le026: A microcontroller unit (MCU) produced by Fudan Microelectronics with 128KB of program storage space and 16KB of RAM. The chip is packaged in LQFP-64 and supports the ROHS standard. It is mainly used in low-power application scenarios.

[0041] CH340G: A USB-to-serial chip, mainly used to convert USB signals to serial UART signals, or vice versa.

[0042] MES: A software system designed to connect, monitor, and control machines, work centers, and data flows on a factory floor.

[0043] Reference Figure 1 and Figure 2 The embodiment of the present application discloses a multi-station production test system based on the FM33LE026 chip, including: a test station 1, a multi-station distinguishing circuit module 5, an FM33LE026 module 2, a code scanning module 6, an image recognition module 3 and a host computer module 4, wherein the multi-station distinguishing circuit module 5 and the code scanning module 6 are coupled to the FM33LE026 module 2, and the FM33LE026 module 2 and the image recognition module 3 are communicatively connected to the host computer module 4.

[0044] Test station 1 is used to place the test meter, and personnel can simulate the water flow of the simulated meter at test station 1. The simulation can be performed by connecting the test meter to the test pipe;

[0045] There are multiple test stations 1. In this embodiment, there are eight test stations 1. Each test station 1 is equipped with a multi-station distinguishing circuit module 5. The multi-station distinguishing circuit module 5 is used to send station mark information to the FM33LE026 module 2.

[0046] The multi-station distinguishing circuit module 5 includes a variable resistor R4, a variable resistor R5, a variable resistor R6, a variable resistor R7, a variable resistor R8, and a variable resistor R9. The variable resistor R4 and the variable resistor R7 are connected in series between the first DC power supply and the ground terminal, the variable resistor R5 and the variable resistor R8 are connected in series between the second DC power supply and the ground terminal, and the variable resistor R6 and the variable resistor R9 are connected in series between the third DC power supply and the ground terminal. The station mark information sent is the level information output by the electrical connection point between the variable resistor R4 and the variable resistor R7, the electrical connection point between the variable resistor R5 and the variable resistor R8, and the electrical connection point between the variable resistor R6 and the variable resistor R9. Personnel can adjust the resistance values ​​of the variable resistor R4, the variable resistor R5, the variable resistor R6, the variable resistor R7, the variable resistor R8, and the variable resistor R9 so that the station mark information has eight changes of 000, 001, 010, 011, 100, 101, 110, and 111 for distinguishing eight test stations 1;

[0047] The FM33LE026 module 2 is used to read the internal data of the meter on the test station 1. A plurality of FM33LE026 modules 2 are provided corresponding to the test station 1.

[0048] The FM33LE026 module 2 includes a far-infrared communication circuit unit 21, an Fm33le026 chip unit 22 and a power supply unit 23; the power supply unit 23 is used to supply power to the FM33LE026 chip unit, the far-infrared communication circuit unit 21, the multi-station differentiation circuit module 5 and the code scanning module 6; the power supply unit 23 adopts a TPS5430DDAR power supply module, which is an existing power supply module.

[0049] The far-infrared communication circuit unit 21 is used to establish infrared communication with the meter. The far-infrared communication circuit unit 21 adopts the existing infrared communication circuit. The Fm33le026 chip unit 22 is coupled to the far-infrared communication circuit unit 21. The Fm33le026 chip unit 22 is also coupled to the multi-station distinguishing circuit module 5. The Fm33le026 chip unit 22 adopts the FM33LE026 main control chip. After the water simulation, the FM33LE026 main control chip can read the internal data of the meter through the far-infrared communication circuit unit 21 and associate the station mark information with the internal data of the meter.

[0050] The FM33LE026 main control chip and the upper computer module 4 transmit data via the USB serial port, which uses the CH340g serial port; the FM33LE026 main control chip transmits the workstation mark information and the internal data of the meter to the upper computer module 4 for storage;

[0051] In this embodiment, the host computer module 4 is a computer, the image recognition module 3 is an image recognition system, the image recognition module 3 is used to identify the table tool base number of the table tool on the test station 1, and the image recognition module 3 establishes a communication connection with the host computer module 4 through the HTTP interface, and outputs the collected table tool base number to the host computer module 4;

[0052] The host computer module 4 compares the internal data of the meter with the base data of the meter for consistency and obtains the test result, wherein the test result includes a pass result and a fail result. It should be noted that the technical means by which the host computer module 4 obtains a specific result through data comparison can be implemented through existing programs.

[0053] In addition, this application can verify whether the meter switch valve is abnormal.

[0054] The specific verification of abnormal switch valve of the meter is as follows: the first step is that the upper computer module 4 obtains the meter base number through the image recognition system interface, and writes the meter base number into the meter through the infrared communication of the FM33LE026 module 2; 15 seconds after the simulation of gas leakage, the upper computer module 4 issues a valve closing instruction through the FM33LE026 module 2, and reads the valve status of the meter through infrared after 10 seconds; if the valve status is closed, the meter base number is obtained again through the image recognition interface, and it is obtained three times in a row. If the base number does not change, it is determined that the valve is closed successfully, and the valve opening instruction is issued. After 10 seconds, the valve status is read. If the valve status is open, it is determined that the meter switch valve is normal. If the valve status is closed, it is determined that the meter switch valve is abnormal. If the meter base number is obtained through the image recognition interface, it is obtained three times in a row. If the base number changes, it is also determined that the meter switch valve is abnormal.

[0055] When the test result passes and the meter switch valve is normal, perform parameter verification;

[0056] Parameter verification: After the meter is glued, it is assembled into a complete meter; scan the barcode and meter number of the meter, bind it in the upper computer module 4, scan the meter cover number, and the system writes the factory meter number and meter parameters into the meter through infrared communication. After writing, the written meter parameters are read out to verify whether the read meter parameters are consistent with the written ones. If they are consistent, the parameter verification is passed.

[0057] Those skilled in the art can clearly understand that the technical solution of the present application can be implemented with the help of software and / or hardware. The "unit" and "module" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, where the hardware can be, for example, a field programmable gate array (FPGA), an integrated circuit (IC), etc.

[0058] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of other embodiments of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are only regarded as exemplary, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A multi-station production test system based on FM33LE026 chip, characterized in that: include: A test station (1), used for placing a test instrument; FM33LE026 module (2), used for reading internal data of a meter on the test station (1); An image recognition module (3) is used to recognize the base number of the meter on the test station (1); The upper computer module (4) is coupled to the FM33LE026 module (2) and the image recognition module (3) and is used to compare the internal data of the meter with the base data of the meter to obtain a test result, wherein the test result includes a pass result and a fail result.

2. A multi-station production test system based on FM33LE026 chip according to claim 1, characterized in that: The FM33LE026 module (2) comprises: A far and near infrared communication circuit unit (21), used for establishing infrared communication with a meter; The Fm33le026 chip unit (22) is coupled to the near and far infrared communication circuit unit (21) and is used to read the internal data of the meter through infrared communication; The power supply unit (23) is used to supply power to the FM33LE026 chip unit and the far and near infrared communication circuit unit (21).

3. A multi-station production test system based on FM33LE026 chip according to claim 2, characterized in that: The power supply unit (23) adopts a TPS5430DDAR power supply module.

4. A multi-station production test system based on FM33LE026 chip according to claim 2, characterized in that: Also includes: A multi-station distinguishing circuit module (5) is installed at a test station (1), coupled to an FM33LE026 module (2), and used to send station identification information to the FM33LE026 module (2); wherein a plurality of test stations (1) are provided, and a plurality of FM33LE026 modules (2) are provided corresponding to the test stations (1).

5. A multi-station production test system based on FM33LE026 chip according to claim 4, characterized in that: The multi-station distinguishing circuit module (5) comprises a variable resistor R4, a variable resistor R5, a variable resistor R6, a variable resistor R7, a variable resistor R8 and a variable resistor R9, wherein the variable resistor R4 and the variable resistor R7 are connected in series between a first DC power supply and a ground terminal, the variable resistor R5 and the variable resistor R8 are connected in series between a second DC power supply and a ground terminal, and the variable resistor R6 and the variable resistor R9 are connected in series between a third DC power supply and a ground terminal, and the station mark information sent is level information outputted jointly by an electrical connection point between the variable resistor R4 and the variable resistor R7, an electrical connection point between the variable resistor R5 and the variable resistor R8, and an electrical connection point between the variable resistor R6 and the variable resistor R9.

6. The multi-station production test system based on the FM33LE026 chip according to claim 1, characterized in that: Data is transmitted between the FM33LE026 module (2) and the host computer module (4) via a USB serial port.

7. The multi-station production test system based on the FM33LE026 chip according to claim 6 is characterized in that: The USB serial port adopts a CH340g serial port.

8. The multi-station production test system based on the FM33LE026 chip according to claim 1, characterized in that: A communication connection is established between the image recognition module (3) and the host computer module (4) via an HTTP interface.

9. The multi-station production test system based on the FM33LE026 chip according to claim 1, characterized in that: Also includes: The barcode scanning module (6) is coupled to the FM33LE026 module (2) and is used to scan the barcode of the table to obtain barcode information, and transmit the barcode information to the FM33LE026 module (2).

10. The multi-station production test system based on the FM33LE026 chip according to claim 9, characterized in that: The code scanning module (6) is a barcode gun.

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