One millisecond technology UHF intelligent vehicle access management and intelligent weighing system
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1. System composition:
This system uses the UHF reader/writer SW4 as the main equipment, and uses electronic tags as the vehicle’s unique identification and the main carrier of information. Through the industrial-grade PC, the automatic gate, induction coil (or infrared sensor), video camera (or digital camera), and dynamic truck scale are comprehensively controlled to realize functions such as gate control, image comparison and weighing. The system structure diagram is as follows:
2. Installation diagram
3. Control process
3.1. Access control function flow
3.1.1. Entry process
slightly
1.1.2. Export process
slightly
3.2. Application process of intelligent weighing system
a) After reading the electronic label information, the entrance receives the weight information from the weighing instrument through the serial port and displays it on the display screen. At the same time, it is stored and stored together with the label information. After the weighing is completed, the vehicle is weighed;
b) The export also needs to be weighed to confirm whether the cargo has been unloaded;
c) If within a certain period of time of the day (the user can set according to the specific situation), repeated entry does not rule out the possibility of cheating on the car, remind the operator to handle it manually, and record the abnormal event at the same time.
4. Software function module:
The software adopts modular design and is divided into basic functions (recognition, display, and barrier control), including two control modes: coil mode and infrared mode; image comparison function (addition of image capture and display; manual recognition and confirmation, button Opening the gate); image recognition function (increase image recognition processing, the entrance and exit respectively recognize the license plate through the image and automatically check with the label information, and the Fangdao function is powerful); weighing function (increase the function of receiving electronic platform scale data).
The external interface of the system adopts DLL dynamic library design or COM mode to enhance the adaptability and expandability of the system. After the basic functions are stable and reliable, a system that adapts to different peripherals and functions can be combined by replacing the DLL.
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