A distributed sensor network system based on nfc technology
A technology of distributed sensors and network systems, applied in the field of distributed sensor network systems based on NFC technology, can solve the problem of not forming a real-time monitoring and management network system, and achieve strong anti-interference ability, good confidentiality, and scalability. Good results
Inactive Publication Date: 2018-06-26
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
When the components enter the warehouse, the card reader equipment automatically recognizes the RFID tags of the components for storage registration, and when the components are taken out of the warehouse, the card reader equipment also performs the warehouse registration operation, and does not form a network system for real-time monitoring and management.
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[0024] The specific implementation of the present invention will be described in detail below by taking the NFC distributed sensor network system of three component warehouses as an example.
[0025] In order to use NFC technology to detect the position information of the component, the component is attached with an NFC electronic tag (following the label communication protocol of ISO14443A / B, ISO15693, ISO18000-3), and the NFC terminal adopts the card reader working mode. The invention adopts the M24LR64 or M24SR64 chip of ST Company as the NFC storage chip, and forms the NFC electronic tag with the NFC receiving antenna (such as figure 2 ), the component information is stored in the 64kbit EEPROM inside the M24LR64 or M24SR64 chip; the PLUG-CR95HF-B board is used as the NFC terminal, and the CR95HF chip is used as the NFC control chip, and the NFC active antenna forms the NFC terminal (such as image 3 shown). The NFC terminal is connected to the SPI bus as a slave device,...
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The invention discloses a distributed sensor network system based on the NFC technology. NFC devices, MCUs, SPI buses, I2C buses, local area network controllers, a main control computer, and an Internet device form an NFC distributed sensor network system. According to the system, each sensor unit formed by connecting one MCU and a plurality of NFC terminal devices in parallel through the SPI buses comprehensively senses attitude and position information of components. Multiple sensor units are connected in parallel to one I2C bus and controlled by one local area network controller, and form an NFC sensor local area network inside a warehouse. NFC sensor local area networks are interconnected by the Internet device to form the NFC distributed sensor network system which is controlled and managed by the main control computer in a unified manner. The system of the invention is advantageous in that close-range component location and detection is carried out by NFC, the anti-jamming capability is strong, and location is accurate; by adopting the SPI and I2C buses, control is convenient, and the communication rate is high; and a large-scale network can be built across regions by the Internet.
Description
technical field [0001] The present invention relates to a distributed sensor network system, in particular to a distributed sensor network system based on NFC technology, which is applied in warehouse management and can acquire location information of components in the warehouse in real time. Background technique [0002] With the continuous development of society, people's requirements for storage systems are getting higher and higher. The traditional warehousing system relies on manual mode and manual operation, not only has many operational errors and low efficiency, it is far from meeting the requirements. The modern warehousing system is significantly different from the traditional warehousing system. It replaces the manual mode with a digital computer management mode for management, and establishes a digital warehouse, that is, uses modern information technology to realize warehouse management and ensure the reasonable and efficient operation of the warehouse. [0003...
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IPC IPC(8): G05B19/418H04W84/18H04L29/08
CPCY02P90/02
Inventor 李燕刘源李争张宁
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI