The unmanned weighbridge relies on the company's high-speed local area network resources, utilizes advanced technologies such as closed-circuit television monitoring and audio and video transmission, and combines them with computer network technology to establish a remote weighing control system integrating image, sound, data, and on-site equipment control, achieving on-site unmanned measurement and remote data transmission for on-site measurement. Metrology personnel can identify vehicle numbers, adjust vehicle positions, collect and store data, and print the statistical data of on-site weighed vehicles at a distance of more than one kilometer. Relying on the IC card electronic information automatic transmission technology, it ensures that the entire process of materials, from entering the factory, card issuance, measurement, unloading, warehousing, consumption, peeling, card collection, leaving the factory, to the automatic data upload through the system, is under closed-loop control. The weighing process is automatically completed through voice prompts and system detection. The effect of remote control has been achieved, eliminating the need for on-site supervision.

On-site installation of dedicated metering terminals (including weighing instruments, computers, IC card reading and writing, printers, license plate cameras, and surveillance cameras), video monitoring points (front camera, rear camera, roof camera, and license plate camera), and video network transmission through a network video server. Meanwhile, it supports local video storage. Install infrared detectors to identify the parking location of vehicles. The measurement process is: When the vehicle is on the scale > the weight value is greater than 500kg> The system automatically records a video > The vehicle is parked normally > the driver gets out of the vehicle > inserts the IC card > The system automatically reads the information on the IC card (vehicle number, business information, etc.) > The system determines whether the information is complete > The system determines whether the vehicle is parked reasonably > whether the data is complete > triggers a remote task > The task allocation server receives the task and divides it The metering staff receives the task and checks it. They measure precisely. They take 6 photos (including the front of the vehicle, the roof, the rear, the license plate, the ticket, and the driver). The system notifies the driver to get off the scale. If the weight is less than 500kg, the recording stops. The measurement is completed. For the transfer measurement within the factory, there is no need for metrology personnel to verify; the system will measure automatically.

During the vehicle entry stage, when the called driver drives the vehicle to the weighbridge to start weighing, the vehicle slowly moves to the barrier gate of the scale platform. When the license plate recognition camera takes a photo of the license plate and stores it in the system, it is compared with the license plate entered in the system. If the license plate comparison is successful, the system controls the entrance barrier gate to lift. If the license plate comparison is unsuccessful or the license plate cannot be recognized, the barrier gate will not lift automatically at this time, the vehicle information cannot be stored in the database, and the next weighing operation will not be carried out. During the vehicle weighing process, once the vehicle is successfully identified and the barrier gate is lifted, the identified license plate number will be announced through the system's voice broadcast. The driver then drives the vehicle onto the weighbridge. At the same time, when the vehicle drives out of the ground induction loop recognition area, the time delay module will lower the barrier gate after a few seconds of delay, and the Weighing system terminal will display the corresponding vehicle weighing information. At this point, the driver gets out of the vehicle and swips the card. After the scale value stabilizes for the specified time, the vehicle's weight is uploaded to the system and stored in the database, indicating that the weighing was successful. The system indicates that the exit barrier is lifted, and the driver gets in and drives the vehicle away from the planting platform. When the local induction loop senses the vehicle's departure, the exit barrier automatically drops. The LED large screen of the weighbridge displays the license plate number and the weight being weighed. The broadcast can prompt the driver of each step of operation. When the driver needs help, they can use the voice intercom to ask the salesperson in the operation room for assistance.

The perfect weighing management software accurately and promptly establishes communication with the hardware controller. The software takes into account more than ten weighing modes such as static, dynamic, IC card, and multiple scales on one machine. The interface and report design are exquisite and user-friendly. The management software for the weighbridge weighing system can be classified by function into the weighing business management subsystem, the image acquisition and access subsystem, the system control subsystem, and the management and maintenance subsystem. The weighing business management subsystem is carried out on the weighing microcomputer to complete daily weighing business and is the core part of the entire system. Image acquisition and access subsystem: It is carried out on the monitoring microcomputer, completing real-time image acquisition and display, snapshot and image access, and receiving and executing instructions sent from the system control subsystem. The captured static images are simultaneously stored in the local hard disk directory and the database of the image retrieval server.

System control subsystem: It is carried out on the weighing microcomputer and the management microcomputer. It can be designed to run in the background or integrated with the weighing business management subsystem or the management and maintenance subsystem. Its main functions are: monitoring parking Spaces and determining whether the weighing business should continue based on the parking space situation. Control the traffic lights. When the car is on the scale, control the red signal light to light up. When the car is off the scale, control the green signal light to light up. Send instructions to the image acquisition and snapshot system to control the real-time display of images and snapshot actions.

Management and maintenance subsystem: It is carried out on the system management microcomputer, managing all weighing data and images, and allowing for operations such as modification and deletion. You can view the business progress scenarios and various data records of any scale room at any time.

By using the computer network system, a service program for image acquisition, snapshot and message processing of the monitoring system is developed to achieve the integration of weighing data and monitoring images. Add a video server, install an Oracle or SOLServer database, and create a table in the database to store video images from the Electronic scale. The images have the date and time when they were captured, so there is no need to set the date and time fields again. By scientifically setting up indexes, the speed of image retrieval can be improved. Install a monitoring microcomputer respectively in the scale room, and each scale should be equipped with at least one camera system. The video capture card installed on the monitoring microcomputer can display video images on the same screen.

The monitoring microcomputer collects and dynamically displays the weighing scene in real time. The weighing microcomputer and the query microcomputer can send commands at any time to trigger the monitoring microcomputer to review the captured pictures. When the weighing software saves the collected weight data, it simultaneously sends commands to the monitoring microcomputer to capture the real-time weighing scene, and saves the pictures to the local monitoring microcomputer hard disk and the remote video server picture database. This operation is automatically completed by the system and does not allow user intervention. The weighing microcomputer and the query microcomputer can also send commands to the monitoring microcomputer to transmit real-time video, thus enabling real-time monitoring of the weighing scene on the weighing microcomputer and the query microcomputer as well.

The unmanned weighbridge system is mainly designed for enterprises to conduct weighing and measurement during the processes of raw material procurement, product sales, and material allocation within the factory. It is combined with a card-swiping system and uses IC cards as the carrier for information transmission. It establishes security guards and receiving and shipping confirmation terminals to achieve closed-loop control of vehicle weighing business. The video surveillance system, infrared monitoring system, language command system and signal control system operate simultaneously, fully realizing the unmanned weighbridge management mode. The weighing system can automatically collect gross weight, tare weight information, vehicle weighing pictures, and is also equipped with functions such as automatic net weight statistics and automatic printing.