CN118464163A - Multistation production test system - Google Patents

Abstract

The application provides a multi-station production test system, which comprises: the simulation test station is used for placing the gauge, and simulating water or air flowing of the gauge; the image acquisition module is used for identifying the base number of the meter on the test station; the instruction sending module is used for sending a valve opening instruction or a valve closing instruction to the gauge so as to control the valve opening or the valve closing of the gauge; the electromechanical consistency verification module is used for reading meter flow readings in a coupling way, and judging whether the meter base number is consistent with the meter flow readings after the meter is opened and the work is simulated; and the abnormality judgment module is used for obtaining an abnormality result when the meter base number is inconsistent with the meter flow reading. The application realizes automatic test and result analysis, greatly shortens the test period and reduces the test cost. The application can obtain the information of the current testing step, the testing result and the like in real time, and is convenient for the use and maintenance of the testers; and the high-precision data acquisition and processing technology is adopted, so that the precision and reliability of the test result are improved.

Description

Multistation production test system

Technical Field

The invention relates to the field of meter testing, in particular to a multi-station production testing system.

Background

The gas meter, the ultrasonic water meter and other meters need to be subjected to verification steps after production so as to ensure the precision and the reliability;

The existing meter production test usually adopts a manual test and a method for manually reading the meter base number to carry out electromechanical consistency verification, a plurality of workers are required to carry out the test one by one in multiple stations, so that the production efficiency is low, and because of the limitation of manually reading and writing the meter base number, the existing meter production test is easy to introduce human errors, so that the meter is easy to misjudge when the electromechanical consistency verification is carried out.

Disclosure of Invention

The application provides a multi-station production test system so that the abnormality of a meter is not easy to be misjudged.

A first aspect of the present application provides a multi-station production test system comprising:

the simulation test station is used for placing the gauge and simulating the work of the gauge;

the image acquisition module is used for identifying the base number of the meter on the test station;

the instruction sending module is used for sending a valve opening instruction or a valve closing instruction to the gauge so as to control the valve opening or the valve closing of the gauge;

The electromechanical consistency verification module is coupled with the image acquisition module and used for reading meter flow readings in a coupling way, and judging whether the meter base number is consistent with the meter flow readings after the meter valve is opened and the work is simulated;

And the abnormality judgment module is used for obtaining an abnormality result when the meter base number is inconsistent with the meter flow reading.

Preferably, the simulation test station is provided with a plurality of, still includes:

the station distinguishing module is used for sending corresponding station information to the processing module according to different simulated test station positions so that the processing module can correlate abnormal results with the corresponding station information.

Preferably, the method further comprises:

The code scanning module is used for scanning the code to identify the table number information of the table;

The table number judging module is used for comparing the table number information with a preset table number standard and judging whether the table number information accords with the preset table number standard or not;

the abnormality judgment module is also used for obtaining an abnormality result when the table number information does not accord with the preset table number standard.

Preferably, the method further comprises:

the parameter writing module is used for writing the table number parameter information into the table;

the parameter verification module is used for reading the table number parameter information written in the table after the table number parameter information is written in the table, and verifying whether the written table number information is consistent with the read table number information;

the abnormality judgment module is also used for obtaining an abnormality result when the written table number information is inconsistent with the read table number information.

Preferably, the method further comprises: and the parameter verification normal result uploading module is used for obtaining a parameter normal result when the written table number information is consistent with the read table number information, and uploading the parameter normal result to the MES system.

Preferably, the method further comprises:

and the meter valve closing quality judging module is used for obtaining the meter valve closing abnormal result when the numerical values of the meter base numbers obtained continuously and repeatedly are inconsistent after the meter valve is closed.

Preferably, the method further comprises:

The meter valve opening and closing action abnormality judging module is used for reading the meter valve state after the instruction sending module sends out the valve opening instruction or the valve closing instruction for a preset time, and if the meter valve state is inconsistent with the valve opening instruction or the valve closing instruction sent out by the instruction sending module, the valve opening and closing abnormality result is obtained.

Preferably, the method further comprises:

and the electromechanical consistent result uploading module is used for obtaining the electromechanical consistent result and uploading the electromechanical consistent result to the MES system when the meter base number is consistent with the meter flow reading.

Preferably, the method further comprises:

the pressure information acquisition module is used for acquiring pressure difference information of the surface of the simulation test station;

the pressure difference statistics module is used for counting the number of the test meters according to the pressure difference information;

and the quantity uploading module is used for uploading the quantity of the test meter to the MES system.

Preferably, the method further comprises:

The mark writing module is used for writing the elimination mark into the table according to the abnormal result;

And the statistics elimination module is used for identifying elimination marks in the meter in the standard time after the pressure difference information is acquired, and if the elimination marks are identified, the number of the test meters is reduced by one.

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

1. The application realizes automatic test and result analysis, can cooperate with PLC to perform automatic test, greatly shortens test period, and reduces test cost.

2. The application can obtain the information of the current testing step, the testing result and the like in real time, and is convenient for the use and maintenance of the testers; the high-precision data acquisition and processing technology is adopted, so that the precision and reliability of the test result are improved;

3. The application realizes the adaptability test of the gauges with different models and types, and expands the application range of the test tool;

4. The application adopts the image recognition technology to take a photograph of the surface base number, recognize and write in the surface tool, and through the electromechanical consistency of the gas-passing verification, the error of manual reading is reduced, and the manual participation is reduced.

Drawings

FIG. 1 is a schematic diagram of a multi-station production test system according to a first embodiment of the present application;

FIG. 2 is a diagram of a host login interface according to a first embodiment of the present application;

FIG. 3 is a schematic overall flow chart of a multi-station production test system according to a first embodiment of the present application;

FIG. 4 is a flow chart of a parameter test according to a first embodiment of the application;

Detailed Description

In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments.

In describing embodiments of the present application, words such as "exemplary," "such as" or "for example" are used to mean serving as examples, illustrations or explanations. Any embodiment or design described herein as "illustrative," "such as" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "illustratively," "such as" or "for example," etc., is intended to present related concepts in a concrete fashion.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a alone, B alone, and both A and B. In addition, unless otherwise indicated, the term "plurality" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating an indicated technical feature. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Scene: the current meter production detection and parameter setting mainly depend on manual testing and manual reading of meter base numbers, and the method has low efficiency and cannot meet the production requirements of large scale and high efficiency. Because of the manual operation, human errors are easily introduced in the test process, thereby influencing the accuracy of the test result. In addition, the existing test tools are generally only suitable for the meter with specific model, lack of flexibility and adaptability, and are difficult to cope with the product requirements of different models or different manufacturers. Meanwhile, due to the lack of a visual interface, the operation is complex, and the use and maintenance of the tester are not facilitated.

To solve these problems, the inventors have intensively parsed all of more than 20 fine procedures for the current gauge line, and carefully evaluated the working performance of several workers involved. Through comprehensive and detailed analysis and optimization, the technical scheme of the application is designed, and the aim of remarkably improving the production efficiency, comprehensively improving the product quality and effectively reducing the production cost is achieved. By optimizing the flow, improving the automation level of the equipment and reasonably distributing human resources, the production line which originally needs 25 workers is simplified to only need 10 to 15 workers, so that the quality of the meter is ensured, and meanwhile, the efficient and economic complete production is realized.

The proper nouns related to the application include:

fm33le026: a Micro Controller Unit (MCU) produced by multiple micro electronics has 128KB of program memory space and 16KB of RAM. The chip adopts LQFP-64 package and supports ROHS standard. It is mainly used in low power consumption application scenario.

CH340G: a USB-to-serial port chip is mainly used for converting USB signals into serial UART signals or reverse operation.

MES: a software system is intended to connect, monitor and control machines, work centers and data flows in a factory floor.

Embodiment one:

Referring to fig. 1 and 2, the embodiment of the application discloses a multi-station production test system, which comprises a plurality of simulation test stations, an image acquisition module, an instruction sending module, a station distinguishing module, a code scanning module and an upper computer; the instruction sending module adopts an Fm33le026 main control circuit, the code scanning module, namely the scanning module circuit, is used for scanning the bar code on the meter, and the image acquisition module adopts an image recognition system for recognizing the number displayed by the meter; the simulation test station has the function of simulating the work of the gauge, wherein the work simulation is water or gas running simulation, and can be particularly to simulate the actual working environment of the gauge by using a water pump and a water pipe; the station distinguishing module is arranged on the analog test station, the station distinguishing module, namely the multi-station distinguishing circuit, is a level output circuit, and the Fm33le026 main control circuit can distinguish different analog test stations by identifying multi-bit level signals sent by the station distinguishing module, wherein the multi-bit level signals adopt eight multi-bit level signals of 000, 001, 010, 011, 100, 101, 110 and 111 in the embodiment; the level signal can be output by an electrical connection point between two resistors connected in series between the low-voltage power supply and the ground terminal, and the 01 output is switched by adjusting the resistance values of the two resistors.

The upper computer comprises an electromechanical consistency verification module, an electromechanical consistency result uploading module, an abnormality judging module, a table number judging module, a parameter writing module, a parameter verification normal result uploading module, a table valve closing quality judging module and a table valve opening and closing action abnormality judging module;

The water meter to be tested on the simulation test station is in communication connection with the instruction sending module through a far-near infrared communication circuit, and the instruction sending module is in communication connection with the upper computer through a CH 340G; the image acquisition module is in communication connection with the upper computer through an HTTP interface;

referring to fig. 3 and 4, the actual operation steps of the present system are as follows:

firstly, a person logs in an upper computer, clicks a starting item, and starts a meter test, wherein the meter test comprises a valve test or a parameter test;

In valve testing;

firstly, placing a meter to be tested into a simulation test station;

The first step, the image acquisition module identifies the meter base number on the test station and transmits the meter base number to the upper computer, the upper computer writes the meter base number into the meter through the infrared communication control Fm33le026 main control circuit, if the actual meter base number changes after writing, the abnormality judgment module in the upper computer judges that the meter is abnormal; if the actual table base number does not change, the related program in the table is normal, and the next step is carried out;

The simulation test station starts to simulate water feeding for 15 seconds, the instruction sending module sends a valve closing instruction to the meter through infrared, the meter valve opening and closing action abnormality judging module reads the valve state of the meter after the preset time passes, the preset time is 10 seconds in the embodiment, and if the valve state is valve closing, the meter valve closing action is normal;

The meter valve closing quality judging module acquires meter base numbers through the image acquisition module continuously for multiple times, verifies whether the meter base numbers acquired for multiple times are consistent, if so, indicates that the meter valve closing is successful, the meter can well block fluid to obtain a normal valve closing result, if not, indicates that the meter cannot well block fluid, and the meter valve closing quality judging module obtains a meter valve closing abnormal result;

The electromechanical consistency verification module reads the meter base number through the image acquisition module, reads the electronic part reading in the meter, namely the meter flow reading through infrared communication, and compares the meter flow reading with the meter base number in consistency; if the two types of the table are inconsistent, the table is described to be abnormal, and an abnormal result is obtained by an abnormal judging module; if so, an electromechanical consistent result is obtained, and an electromechanical consistent result uploading module uploads the electromechanical consistent result, the meter flow reading and the meter base to an MES system for storage for subsequent use; then, the instruction sending module sends out a valve opening instruction, the valve opening state is read by the valve opening action abnormality judging module after ten seconds, if the valve state is the valve opening state, a normal valve opening result is obtained, and if the valve state is the valve closing state, the valve opening abnormality judging module obtains a valve opening abnormality result through verification; obtaining electromechanical consistent results, valve closing normal results and valve opening normal results, and obtaining qualified test of the valve of the meter;

Then filling glue into the meter, filling the glue into a whole meter, and then carrying out parameter test;

In the parametric test;

Firstly, scanning a basic table bar code and a table number through a code scanning module, transmitting the basic table bar code and the table number to an upper computer, and binding the table number and information in the bar code on the upper computer; if the upper computer does not receive the information in the table number and the bar code, the code scanning is performed again;

The table number judging module is used for comparing the table number information with a preset table number standard and judging whether the table number information accords with the preset table number standard or not; the table number standard specifically can be to detect whether the table number is complete; if the table number information does not accord with the preset table number standard, the abnormality judgment module obtains an abnormality result; if the table number information accords with the preset table number standard, writing the scanned table number into the table through infrared communication;

The parameter writing module writes the table number parameter information into the table; the parameter verification module reads the table number parameter information written in the table through infrared rays; verifying whether the written table number information is consistent with the read table number information; if the result is inconsistent, the abnormality judgment module obtains an abnormality result; if the parameters are consistent, passing the parameter test; the parameter verification normal result uploading module obtains a parameter normal result and uploads the table number information, the related parameters and the parameter normal result to the MES system; and marks the delivery mode in the MES system, and prepares for delivery sales.

It should be noted that, the upper computer is connected with the MES and the background database, and is used for displaying the testing process and uploading the testing record, and the station distinguishing module sends the corresponding station information, i.e. the multi-bit level signal, to the upper computer so that the upper computer associates the abnormal result with the corresponding station information, so as to distinguish the table on the different stations in the upper computer.

The application adopts the FM33LE026 chip as the main control chip, reduces the complexity of the circuit, ensures that the circuit board is more integrated and convenient, and can reduce the interference between stations during infrared communication through near infrared communication. Meanwhile, the application is compatible with far infrared communication and is suitable for different gauges, and the application can simultaneously test a plurality of gauges, set parameters and verify parameters, thereby improving the production efficiency; the automatic test and result analysis are realized, the automatic test can be carried out in cooperation with the PLC, the test period is greatly shortened, and the test cost is reduced. The application can display the information of the current testing step, the testing result and the like in real time, and is convenient for the use and maintenance of the testers; the high-precision data acquisition and processing technology is adopted, so that the precision and reliability of the test result are improved; the adaptability test of the table tools of different types and kinds is realized, and the application range of the test tool is enlarged; and the image recognition technology is adopted to carry out photographing recognition on the surface base number, the surface is written in, and the electromechanical consistency is verified through ventilation, so that errors of manual reading are reduced, and manual participation is reduced.

Embodiment two:

The difference between this embodiment and the first embodiment is that: the upper computer also comprises a pressure information acquisition module, a pressure difference statistics module, a mark writing module and a statistics elimination module;

in daily meter test, personnel need to count the number of the tested meters, and the embodiment can automatically count the number of the tested meters, so that the personnel can manage the meter conveniently;

the pressure information acquisition module acquires pressure difference information of the surface of the simulation test station; the pressure difference information can be collected by a pressure sensor arranged on the surface of the simulation test station, when a person performs a meter test, the meter is put into the simulation test station, so that the pressure value on the surface of the simulation test station is changed from small to large, according to the pressure change, the pressure difference statistics module can count the number of times of putting the meter into the test station, and the number of times of putting the meter into the test station is equal to the number of the meter into the test station; after each test meter is placed into the simulation test station, the quantity uploading module uploads the quantity of the test meter to the MES system;

Because unqualified meters are detected in the detection process, the meters need to be reworked and retested, and because automatic statistics is performed based on pressure changes generated when the meters are placed in a simulation test station, reworking and retesting can cause automatic statistics problems, so that the meters are counted for a plurality of times, and the problem is solved; the mark writing module of the embodiment writes the elimination mark into the meter after the abnormal result, the meter valve closing abnormal result or the switching valve abnormal result appears; the statistic elimination module identifies the elimination mark in the meter when retesting, wherein the specific identification time is the standard time after the upper computer acquires the pressure difference information, the standard time can be 30s or other time, and the elimination mark can be determined by personnel according to actual conditions, and the statistic elimination module is not limited herein; after the statistic elimination module identifies the elimination mark from the meter, the number of the test meter counted by the pressure difference statistic module is reduced by one so as to eliminate the data error problem caused by repeated statistics. In addition, the upper computer is also provided with a Bluetooth activation module for activating Bluetooth of the meter written with the elimination mark, fault information of the meter is broadcast through the Bluetooth, the fault information is implanted into the meter by a fault information implantation module in the upper computer, the fault information is written into a Bluetooth broadcast name by the meter, and the content of the fault information corresponds to detection steps, such as valve fault, parameter fault and the like. The fault information can also be a more subdivided step, and the meter automatically sends the fault information so as to be convenient for a repairing person to repair the meter. In other embodiments, after the fault information is embedded in the meter, the meter may also broadcast the fault information by receiving a specific infrared command.

It will be clear to a person skilled in the art that the solution according to the application can be implemented by means of software and/or hardware. "Unit" and "module" in this specification refer to software and/or hardware capable of performing a particular function, either alone or in combination with other components, such as Field programmable gate arrays (Field-ProgrammaBLE GATE ARRAY, FPGA), integrated circuits (IntegratedCircuit, IC), or the like.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, such as the division of the units, merely a logical function division, and there may be additional manners of dividing the actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some service interface, device or unit indirect coupling or communication connection, electrical or otherwise.

The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the present disclosure. That is, equivalent changes and modifications are contemplated by the teachings of this disclosure, which fall within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a scope and spirit of the disclosure being indicated by the claims.

Claims (10)

1. A multi-station production test system, comprising:

the simulation test station is used for placing the gauge and simulating the work of the gauge;

the image acquisition module is used for identifying the base number of the meter on the test station;

the instruction sending module is used for sending a valve opening instruction or a valve closing instruction to the gauge so as to control the valve opening or the valve closing of the gauge;

The electromechanical consistency verification module is coupled with the image acquisition module and used for reading meter flow readings in a coupling way, and judging whether the meter base number is consistent with the meter flow readings after the meter valve is opened and the work is simulated;

And the abnormality judgment module is used for obtaining an abnormality result when the meter base number is inconsistent with the meter flow reading.

2. The multi-station production test system of claim 1, wherein the simulation test stations are provided in plurality, further comprising:

the station distinguishing module is used for sending corresponding station information to the abnormality judging module according to different simulated test station positions so that the abnormality judging module can correlate the abnormality result with the corresponding station information.

3. The multi-station production test system of claim 1, further comprising:

The code scanning module is used for scanning the code to identify the table number information of the table;

The table number judging module is used for comparing the table number information with a preset table number standard and judging whether the table number information accords with the preset table number standard or not;

the abnormality judgment module is also used for obtaining an abnormality result when the table number information does not accord with the preset table number standard.

4. A multi-station production test system as in claim 3, further comprising:

the parameter writing module is used for writing the table number parameter information into the table;

the parameter verification module is used for reading the table number parameter information written in the table after the table number parameter information is written in the table, and verifying whether the written table number information is consistent with the read table number information;

the abnormality judgment module is also used for obtaining an abnormality result when the written table number information is inconsistent with the read table number information.

5. The multi-station production test system of claim 4, further comprising:

And the parameter verification normal result uploading module is used for obtaining a parameter normal result when the written table number information is consistent with the read table number information, and uploading the parameter normal result to the MES system.

6. The multi-station production test system of claim 1, further comprising:

and the meter valve closing quality judging module is used for obtaining the meter valve closing abnormal result when the numerical values of the meter base numbers obtained continuously and repeatedly are inconsistent after the meter valve is closed.

7. The multi-station production test system of claim 1, further comprising:

The meter valve opening and closing action abnormality judging module is used for reading the meter valve state after the instruction sending module sends out the valve opening instruction or the valve closing instruction for a preset time, and if the meter valve state is inconsistent with the valve opening instruction or the valve closing instruction sent out by the instruction sending module, the valve opening and closing abnormality result is obtained.

8. The multi-station production test system of claim 1, further comprising:

and the electromechanical consistent result uploading module is used for obtaining the electromechanical consistent result and uploading the electromechanical consistent result to the MES system when the meter base number is consistent with the meter flow reading.

9. The multi-station production test system of claim 1, further comprising:

the pressure information acquisition module is used for acquiring pressure difference information of the surface of the simulation test station;

the pressure difference statistics module is used for counting the number of the test meters according to the pressure difference information;

and the quantity uploading module is used for uploading the quantity of the test meter to the MES system.

10. The multi-station production test system of claim 9, further comprising:

The mark writing module is used for writing the elimination mark into the table according to the abnormal result;

And the statistics elimination module is used for identifying elimination marks in the meter in the standard time after the pressure difference information is acquired, and if the elimination marks are identified, the number of the test meters is reduced by one.