Measuring sorting scale is used for reading and sending function of displaying weight figures in the process of factory calibration of electronic scales. It adopts imported industrial camera, which gives the weight value of electronic scales through image analysis and calculation, and outputs the switch signal according to the judgment of the error range in order to facilitate the execution of the next step of operation.

Second, weighing and checking machine character recognition system design ideas

Automatic checkweigher based on machine vision image processing technology developed by the character recognition system, with high precision, high speed, multi-sample characteristics. The main modules of the weighing and sorting system are: trigger positioning, image processing module, control module. According to the user's needs, the sample moves to the detection position, triggers the camera and outputs the recognition signal to the vision system in time, thus completing the recognition function.

Character recognition and positioning trigger control design scheme: the product in place, the photoelectric sensor to collect recognition signals, the system recognizes the character information; will recognize the information through a fixed format to the PLC for the next step.

Third, sorting equipment character recognition system design program

Weighing conveyor visual recognition system mainly includes: camera, lens, light source and image processing software. The light source to reach the identification position of the sample after the light, the camera and the lens imaging system to capture it, when the camera receives a trigger signal, the imaging system to take pictures of the sample and the image will be transmitted to the image processing system for identification, and will identify the value of the transmission to the PLC to facilitate the implementation of the next step in the operation of the equipment.

Fourth, the measurement of the main functions of the sorting system

1, high-speed identification of 6 per second;

2、Automatic recognition and display values and output to the PLC;

3, the correct recognition rate of 99.9%;

4, taking the image range of 80 * 60mm;

5, Horizontal direction rotation automatic correction function;

6、Automatic completion of the examined product and the camera to obtain image synchronization;

7、Automatically complete the sample character recognition recognition and save the function;

8, but also according to the need for different specifications of product type learning and recognition;

9、Automatic storage of product images, and can be queried historically;

10、Automatic statistics (good products, defective products, total number, etc.);

11, non-conforming products display, output control equipment shutdown signal;

12, the system has a self-learning function, and the learning process is simple.

Fifth, the main technical characteristics of the weighing and sorting system

1、Operating interface is clear and simple, only simple settings can be automatically recognized;

2, identification software and algorithms are completely self-developed, the system is highly targeted;

3. Recognition template and recognition range can be set flexibly;

4, optional local recognition function, improve recognition speed;

5, specialized light source design, clear and uniform imaging, to ensure that the identification task is completed;

6, support for a variety of models of product recognition, with product online automatic search and other functions;

7, simple installation; compact results, easy to operate, maintain and expand;

8, high reliability, stable operation, suitable for a variety of field operating conditions.

9, based on the PC platform, the system is highly expandable, can be expanded with other functions.