CN204924397U - Electromechanical conversion reliability test device of electron teletransmission water gauge - Google Patents

Abstract

Electronic remote water meter electromechanical conversion reliability test device, including a test bench, an electronic reading recognizer for collecting the indicated value of the electronic remote water meter counter, a mechanical reading recognizer for collecting the indicated value of the electronic remote water meter counter, and a servo motor The transmission mechanism and the controller with the control interface, the electronic reading recognizer and the mechanical reading recognizer are installed on the test bench, and the image sensor positioning mechanism of the mechanical reading recognizer is located above the electronic reading recognizer; the servo motor drive mechanism It is connected with the water meter counter; the electronic reading recognizer, the mechanical reading recognizer and the servo motor transmission mechanism are respectively connected with the corresponding ports of the controller. The beneficial effects of the utility model are: directly recognize the indication value of the water meter counter wheel, without manual participation in the reading; under the non-real flow test condition, the servo motor is used to directly drive the counter wheel forward, which can shorten the test period and improve work efficiency; It is easy to operate and rich in setting parameters.

Description

Electromechanical conversion reliability test device for electronic remote water meter

technical field

The utility model relates to a reliability test device for electromechanical conversion of an electronic remote transmission water meter.

Background technique

With the development of smart cities and electronic technology, electronic remote water meters have been more and more widely used due to their advantages of remote reading. As a measuring instrument for water trade settlement, the accuracy of remote reading of water meters, that is, the reliability of electromechanical conversion, is directly related to the interests of both suppliers and buyers. Therefore, the electromechanical conversion reliability of the electronic remote water meter needs to be tested, and the manual method is too inefficient and the test period is long.

Contents of the invention

The utility model aims at testing the reliability of the electromechanical conversion of the current electronic remote water meter. The efficiency of the manual method is too low and the test period is long. , Electronic remote water meter electromechanical conversion reliability test device with high accuracy.

The electronic remote transmission water meter electromechanical conversion reliability test device described in the utility model is characterized in that it includes a test bench, an electronic reading identifier for collecting the indication value of the electronic remote water meter counter, and an electronic remote transmission water meter counter for collecting The mechanical reading recognizer of the indicated value, the servo motor transmission mechanism and the controller with the control interface, the electronic reading recognizer and the mechanical reading recognizer are installed on the test bench, and the mechanical The image sensor positioning mechanism of the reading recognizer is located above the electronic reading recognizer; the servo motor transmission mechanism is connected with the water meter counter; the electronic reading recognizer, the mechanical reading recognizer and the servo motor drive The mechanisms are respectively connected to the corresponding ports of the controller;

The electronic reading recognizer includes a reader for communication with the electronic remote water meter, a counter positioning mechanism and a horizontal push quick clip with a horizontal movable stroke; the water meter counter positioning mechanism and the horizontal connecting rod inside the test bench Sliding connection; said horizontal pushing quick clamp is mounted on said test bench, and the movable end of said horizontal pushing quick clamp is fixedly connected with said counter positioning mechanism; said signal input end of reading device It is connected with the sensor signal output end of the counter, and the signal output end of the reader is connected with the corresponding signal input end of the data acquisition module of the controller;

The mechanical reading recognizer includes an image sensor, an image processing-recognition unit, a data remote transmission unit, an image sensor positioning mechanism, a press-down quick clamp and a rotation limit mechanism, and the rotation limit mechanism is installed in the test The top of the column of the stand; the upper part of the press-down quick clamp is affixed to the movable part of the rotation limiting mechanism, and the lower part of the press-down quick clamp is affixed to the image sensor positioning mechanism to ensure that the The image sensor described above is always located directly above the counter dial; the signal output end of the image sensor is connected to the signal input end of the image processing-recognition unit, and the signal output end of the image processing-recognition unit is passed through the data remote The transmission unit is connected with the corresponding signal input end of the data acquisition module of the controller.

The servo motor transmission mechanism includes a servo motor and a servo amplifier, the power output gear of the servo motor meshes with the power input gear of the counter; the signal input terminal of the servo motor is connected to the signal of the servo amplifier The output terminal is connected to the circuit, and the signal input terminal of the servo amplifier is connected to the output terminal of the control module of the controller.

The counter positioning mechanism is provided with a mounting hole for snapping into the counter of the water meter.

The press-down quick clip includes a collet and a telescopic rod, the collet is installed on the rotation limiting mechanism, the upper part of the telescopic rod is fixedly connected with the collet, and the telescopic The lower part of the rod is screwed with the image sensor positioning mechanism.

The image sensor is a CMOS image sensor.

The technical concept of the utility model is: take out the counter of the electronic remote water meter from the base meter, install it on the counter positioning mechanism, the counter advances under the drive of the servo motor, when the counter moves to a certain position, the mechanical reading recognition module will set the counter The indicated value of the word wheel is transmitted to the control module, and the electronic reading recognition module transmits the indicated value of the counter word wheel to the control module, and the electromechanical conversion reliability error of the electronic remote water meter can be obtained according to the difference between the two.

The control module is used to send instructions to the electronic reading identification module and the mechanical reading identification module after the servo motor transmission mechanism is started, and the electronic reading identification module converts the indicated value of the character wheel of the counter by using the sensor attached to the counter The electronic reading Vs is sent to the control module, and the mechanical reading recognition module uses the image sensor to convert the counter's word wheel indication value into a mechanical reading V _M and sends it to the control module. After the control module receives the data, the computer-electrical conversion is reliable according to formula (1) Sexual error △V:

ΔV=V _M −V _S (1).

The beneficial effect of the utility model is: based on the digital image recognition technology, the indication value of the character wheel of the water meter counter can be directly recognized without manual participation in the reading. Under non-real flow test conditions, the servo motor is used to directly drive the counter wheel forward, which can shorten the test cycle and improve work efficiency. The utility model has the advantages of convenient operation, reliable operation and rich setting parameters, and can be used for the electromechanical conversion reliability test of the electronic remote transmission water meter.

Description of drawings

Fig. 1 is a structural diagram of the utility model.

Fig. 2 is one of internal structural diagrams of the present utility model.

Fig. 3 is the second internal structure diagram of the utility model.

Detailed ways

Further illustrate the utility model below in conjunction with accompanying drawing

Referring to the attached picture:

Embodiment 1 The electronic remote water meter electromechanical conversion reliability test device described in the utility model includes a test bench 1, an electronic reading identifier 2 for collecting the indication value of the electronic remote water meter counter, and an electronic remote water meter for collecting The mechanical reading identifier 3 of the counter indication value, the servo motor transmission mechanism 4 and the controller with a control interface, the electronic reading identifier 2 and the mechanical reading identifier 3 are installed on the test bench 1 , and the image sensor positioning mechanism of the mechanical reading recognizer 3 is located above the electronic reading recognizer 2; the servo motor transmission mechanism 4 is connected with the water meter counter; the electronic reading recognizer 2, the mechanical The reading recognizer 3 and the servo motor transmission mechanism 4 are respectively connected to the corresponding ports of the controller;

The electronic reading recognizer 2 includes a reading device for communicating with the electronic remote water meter, a counter positioning mechanism 21 and a horizontal push quick clip 22 with a horizontal movable stroke; the water meter counter positioning mechanism 21 and the test bench 1 The internal horizontal connecting rod 11 is slidably connected; the horizontal push quick clamp 22 is mounted on the test bench 1, and the movable end of the horizontal push quick clamp 22 is affixed to the counter positioning mechanism 21; The signal input of the reader is connected to the sensor signal output of the counter, and the signal output of the reader is connected to the corresponding signal input of the data acquisition module of the controller;

The mechanical reading recognizer 3 includes an image sensor, an image processing-recognition unit, a data remote transmission unit, an image sensor positioning mechanism 31, a pressing quick clip 32 and a rotation limit mechanism 33, and the rotation limit mechanism 33 is installed At the top of the column 12 of the test bench 1; the upper part of the press-down quick clamp 32 is affixed to the movable part of the rotation limiting mechanism 33, and the bottom of the press-down quick clamp 32 is connected to the The image sensor positioning mechanism 31 is fixedly connected to ensure that the image sensor is always positioned directly above the counter dial; the signal output end of the image sensor is connected with the signal input end of the image processing-recognition unit, and the image sensor The signal output end of the processing-recognition unit is connected to the corresponding signal input end of the data acquisition module of the controller through the remote data transmission unit;

Described controller comprises control interface, data acquisition module, data processing module and control module, and the signal output end of described data acquisition module is connected with the signal input end of described data processing module, and the signal input end of described data processing module The signal output terminal is connected with the input terminal of the control interface; the output terminal of the control interface is connected with the input terminal of the control module.

Described servomotor transmission mechanism 4 comprises servomotor 41, servo amplifier 42, and the power output gear of described servomotor 41 meshes with the power input gear of described counter; The signal input end of described servomotor 41 and described The signal output terminal of the servo amplifier 42 is connected to the circuit, and the signal input terminal of the servo amplifier 42 is connected to the output terminal of the control module of the controller.

The counter positioning mechanism is provided with a mounting hole for snapping into the counter of the water meter.

The press-down quick clip includes a collet and a telescopic rod, the collet is installed on the rotation limiting mechanism, the upper part of the telescopic rod is fixedly connected with the collet, and the telescopic The lower part of the rod is screwed with the image sensor positioning mechanism.

The image sensor is a CMOS image sensor.

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept. The protection scope of the utility model should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the utility model also includes Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (5)

1. electronic remote transmission water meter data-collection reliability test, it is characterized in that: comprise test-bed, for gather electronic remote transmission water meter counter indicated value electronical reading recognizer, for gathering the controller of the mechanical reading recognizer of electronic remote transmission water meter counter indicated value, servo motor transmission mechanism and band control inerface, described electronical reading recognizer, described mechanical reading recognizer are arranged on described test-bed, and the imageing sensor detent mechanism of described mechanical reading recognizer is positioned at the top of electronical reading recognizer; Described servo motor transmission mechanism is connected with water meter counter; Corresponding to the described controller respectively port of described electronical reading recognizer, described mechanical reading recognizer and described servo motor transmission mechanism is connected;

Described electronical reading recognizer comprises for Copy and reading apparatus, the counter detent mechanism of electronic remote transmission water meter communication with have the horizontal of horizontal anomalous movement stroke and push away quick clip; Described water meter counter detent mechanism and the waling stripe of test-bed inside are slidably connected; The described horizontal quick clip that pushes away is contained on described test-bed, and described horizontal push away quick clip movable end and described counter detent mechanism affixed; The signal input part of described Copy and reading apparatus is connected with the sensor signal output terminal of described counter, and the signal input part that the signal output part of described Copy and reading apparatus is corresponding to the data acquisition module of described controller is connected;

Described mechanical reading recognizer comprises imageing sensor, image procossing-recognition unit, data remote unit, imageing sensor detent mechanism, presses down quick clip and rotary position-limit mechanism, and described rotary position-limit mechanism is arranged on the column top of described test-bed; The described movable part pressing down quick clip top and described rotary position-limit mechanism is affixed, the described bottom pressing down quick clip and described imageing sensor detent mechanism affixed, the imageing sensor described in guarantee is positioned at directly over counter dial plate all the time; The signal output part of described imageing sensor is connected with the signal input part of described image procossing-recognition unit, and the signal output part of described image procossing-recognition unit is connected by the signal input part that data remote unit is corresponding to the data acquisition module of described controller.

2. electronic remote transmission water meter data-collection reliability test as claimed in claim 1, it is characterized in that: described servo motor transmission mechanism comprises servomotor, servoamplifier, the power output gear of described servomotor engages with the power input gear of described counter; The signal input part of described servomotor is connected with the signal output part circuit of described servoamplifier, and the signal input part of described servoamplifier is connected with the output terminal of the control module of described controller.

3. electronic remote transmission water meter data-collection reliability test as claimed in claim 2, is characterized in that: described counter detent mechanism is provided with the mounting hole for snapping in water meter counter.

4. electronic remote transmission water meter data-collection reliability test as claimed in claim 1, it is characterized in that: the described quick clip that presses down comprises chuck and expansion link, described chuck is arranged on described rotary position-limit mechanism, top and the described chuck of described expansion link are affixed, and bottom and the described imageing sensor detent mechanism of described expansion link are spirally connected.

5. electronic remote transmission water meter data-collection reliability test as claimed in claim 4, is characterized in that: described imageing sensor is cmos image sensor.