Tianjin Steel Plant Raw Material Yard Vehicle Management UHF RFID Tag Application Case
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This system uses 900MHz frequency band RFID tags to uniquely identify the raw material transportation vehicles of Tianjin Steel Plant to realize vehicle anti-counterfeiting, and arrange readers at gates, weighbridge rooms and unloading yards to allow vehicles to enter the factory, pass hair, unload, and peel back. , The whole process of delivery, etc. is monitored to realize the closed-loop management of vehicle weighing in the raw material yard. The main features of this system include:
1. The system can realize the whole process monitoring of the vehicle from entering the factory, passing the wool, unloading, backing to the factory; it can identify and alarm the abnormal process, and prevent the unloading of the factory, the second time and other cheating behaviors.
2. The system conducts centralized control of the gates and weighbridge rooms through the local area network, and conducts real-time monitoring of the operating conditions of each terminal to prevent cheating by artificially shutting down the terminal system.
3. It can realize unattended automatic weighing in the weighbridge room, reduce labor costs, and prevent cheating of internal and external collusion.
4. The system is highly expandable, and the number of gates, weighbridge houses, and unloading yards can be increased or decreased arbitrarily.
5. The use of 900MHz passive tags can achieve remote automatic reading requirements up to 12 meters away, and minimize system costs.
Problem solving and key technology breakthroughs
1. Anti-counterfeiting of vehicle labels. The vehicle tag used in this project is a 900MHz passive tag. It uses a glass tag design solution that has better reading performance after being attached to the windshield of a truck; and adopts a tear-resistant design and high-strength 3M adhesive to realize vehicle tags The anti-replacement.
2. RFID middleware technology. In this project, the RFID middleware independently developed by Aerospace Information is used to uniformly manage the entire system using 18 readers and 36 antennas, and realize the concurrent processing of large-scale RFID data, data filtering, and data anti-collision issues.
Hardware architecture diagram of vehicle management UHF RFID tag system
Introduction of independent intellectual property rights
1. RFID-based bulk material weighing management software
The security system of Tianjin Steel Plant’s raw material yard is designed and developed on the basis of the RFID-based bulk material weighing management software of Aerospace Information. The RFID-based bulk material weighing management software can realize unattended automatic weighing and centralized management of multiple weighbridge rooms through the network. The weighing rooms can be freely equipped with railings, ground sensing coils, infrared beams, LED screens, Voice prompts, traffic lights and other equipment; the system can support two-way weighing in the weighbridge room. This software aerospace information has applied for a number of patents.
2. RFID middleware
Aerospace Information RFID middleware is a basic software developed to support RFID application software. It is used for underlying reader management, shielding RFID reader differences for application software and providing data filtering services. Aerospace Information RFID middleware products include special RFID middleware platforms for large-scale application systems and lightweight RFID middleware.
Application effectiveness
The implementation of the security system of the Tianjin Steel Plant’s raw material yard has realized the effective management of the raw material transportation vehicles in the factory, and effectively eliminated the weighing cheating behaviors such as vehicle deck weighing, secondary grossing, illegal off-site unloading, etc.; through system automation Operation reduces human involvement and avoids cheating behaviors of internal and external collusion.
At present, the system is operating 7*24 hours in Tianjin Steel Plant, real-time monitoring of the in and out, weighing and unloading of more than 1,100 trucks responsible for the transportation of raw materials. It records more than 3,000 weighings and more than 3,000 entrances and exits every day. The number of trains. The system runs stably and well and has been highly recognized by the owner.
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