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Deutsche Post applied RFID technology to establish an automatic identification system in 33 freight centers across the country, realizing automatic mail tracking.
The system includes the installation of 66 read-write terminals and approximately 11,000 tags (used to automatically identify containers). The application of the radio frequency identification system can automatically control the entry and exit of the container in the freight center, and can guide the transportation direction of the container, so that the container can be transported to the correct loading location.
Deutsche Post has established a radio frequency identification system for motor vehicles and postal items. This is a system that includes an active tag (reading or writing is powered by an internal battery), and there is a lot of room for development, especially in applications in difficult industrial environments.
Every truck and postal item with a tag can be identified. The memory of a tag includes a 48-bit fixed code, which has a constant tag ID number. In addition, there is 56 bytes of storage space for users to customize. The data memory can complete more than 100,000 write cycles.
The system operation process is as follows:
1. First confirm the truck and postal items, then drive in and load the goods
The antennas are installed on the entrance and exit gates of the freight center, and the reading and writing frequency of the system is 868MHZ. When a truck arrives at the entrance of the freight center, the automatic identification system reads the fixed code of the tag through the antenna, and uses sophisticated anti-collision algorithms (that is, multiple objects can be identified at the same time). The system can identify the truck and the post at the same time Things.
At the same time, the host records the arrival of vehicles and mail items. The computer then issues a receipt and sends it to the communication tower. Before the driver enters the loading center, he knows where he should unload the cargo or where he should load the containers assigned to him.
Then the gate opened automatically and the truck entered. Through the combination of entry and exit management and traffic management (simple logistics system), you can know the number of trucks and postal items, their exact information, real-time location and the destination of the truck. This can solve the problem of unmanageable traffic flow in the freight center and ensure that the container can move smoothly on the truck.
If someone wants to find the specific location of a certain truck or postal item, one click can know whether the truck has passed the freight center or has not arrived yet.
2. After the correct check, the package can be shipped out smoothly
When the truck leaves the freight center, a read-write terminal at the exit will check the number of the truck and the postal items, and compare the data obtained with the target data provided by the main control station. The door will open automatically after confirmation. If the route of the postal item or truck is not confirmed, the gate is always closed.
3. Keep track and trace
In Deutsche Post, all postal items must be continuously tracked by the OIS-U automatic identification system. With this control system, each individual postal item is given an accurate route. In this way, Deutsche Post can accurately track the route of each shipment and the corresponding container.
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