A logistics monitoring system combining wsn and rfid

Abstract

The invention proposes a logistics monitoring system with combination of a wireless sensor network (WSN) and RFID. The system is composed of a remote monitoring sub system and a ground sub system. The remote monitoring sub system deployed in a storage space or vehicle consists of an RFID tag, a sensor node, a fusion node, and a convergence node. The RFID tag and the sensor node are attached to a cargo package. The fusion node includes an RFID reading-writing unit and a wireless node module; data transmission with the RFID tag and the sensor node is carried out by the RFID reading-writing unit or the wireless node module; and the fusion node processes the data of the RFID tag or the sensor node. The fusion node converges data to the convergence node by the wireless sensor network. The convergence node carries out communication with the fusion node by the wireless sensor network and carries out communication with a ground system by an ethernet network or a GPRS. The ground sub system carries out communication with an external network by an ethernet network or a GPRS and receives information uploaded by the convergence node or sends information to the convergence node. Therefore, storage positioning and on-road cargo attitude identification are realized.

Description

technical field [0001] The invention relates to the field of information logistics, in particular to a logistics monitoring system combining WSN and RFID. Background technique [0002] Logistics is a part of the supply chain, which is the process of planning, implementing and controlling to meet the needs of customers for high-efficiency, low-cost flow and storage of goods, services and related information from the place of origin to the place of consumption. Among the main production links of logistics, the three processes of loading and unloading, packaging, and circulation processing have mostly been mechanized and automated, while the remaining warehousing and transportation processes have become the main source of logistics errors. The lack of logistics information prevents these problems from being discovered and resolved immediately, and the reasons for errors cannot be recorded for later traceability and avoidance. [0003] In the warehousing link, most of the finis...

AI Technical Summary

Problems solved by technology

[0009] In a large-scale storage environment, storage positioning has always been a key issue that restricts the efficiency of goods inventory and inbound and outbound storage. However, most of the existing RFID-based positioning algorithms are oriented to small-area indoor positioning. For large-scale storage with shelves as the main In terms of environment, it is necessary to deploy too many RFID anchor nodes to achieve effective positioning signal coverage, complex wiring, and excessive hardware overhead

[0010] In the logistics distribution link, the monitoring methods mainly based on positioning systems and manual inspections cannot meet the needs of real-time monitoring of goods

However, tracking video surveillance such as cameras have complex wiring and high requirements on light and line-of-sight conditions, and are not suitable for use in narrow transport boxes

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