A wireless transducer network system based on unloading lot detection based on magnetic sensitive technology
A wireless sensor and network system technology, applied in the field of wireless sensor networks, can solve the problems of short service life, high system maintenance cost, ground damage of parking space detectors, etc., and achieve the effects of low cost, strong anti-interference ability and small environmental impact
Inactive Publication Date: 2011-09-21
JIAXING WIRELESS SENSOR NETWORKS CENT CAS
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Problems solved by technology
[0004] The invention aims to solve the problems of serious ground damage, short service life and high system maintenance cost in the existing parking space detectors
Method used
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[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0012] The present invention is a three-level multi-hop wireless sensor network system, which is composed of a large number of anisotropic magnetic resistance sensor (AMR sensor) terminals 3, several wireless relay terminals 2 and a wireless receiving terminal 1. The anisotropic reluctance sensor terminal 3 is responsible for the signal acquisition and processing of the front end, and is powered by a battery. The wireless relay terminal 2 is responsible for receiving the data reported by the anisotropic reluctance sensor terminal 3, and forwarding the data to the wireless receiving terminal 1, which is powered by solar cells, batteries, or active sources. The wireless receiving terminal 1 is responsible for system coordination, display and storage of parking space status information, and is powered by a wired DC power supply.
[0013] The working mode ...
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The invention discloses a wireless sensor network system for detecting packing based on the magnetic-sensing technology, which is a three-stage wireless sensor network system including a plurality of anisotropic magneto-resistance sensor terminals, a plurality of wireless relay terminals and a wireless receiving terminal. The anisotropic magneto-resistance sensor terminals can acquire and processa front end signal and be powered by a battery. The wireless relay terminals powered by a solar battery or a storage battery or powered in an active manner can receive the data sent from the anisotropic magneto-resistance sensor terminals, and transmit to the wireless receiving terminal. The wireless receiving terminal can coordinate system, display and store packing state information, and is powered by wired direct current power supply. The inventive system can flexibly adjust amount and layout position of the wireless relay terminals based on practical condition and effectively overcome thedisadvantages of limited wireless such as limited transmission distance, easy being shielded, etc; and can be used in large-scale parking lots with complex structure.
Description
technical field [0001] The invention relates to a wireless sensor network, in particular to a wireless sensor network system for detecting parking spaces based on magnetic sensitivity technology. Background technique [0002] With the development of society and the improvement of people's living standards, the number of vehicles has increased sharply year by year. In order to ensure vehicle safety and convenient transportation, it is urgent to adopt a highly automated, convenient and fast parking lot automatic management system to improve the management level of the parking lot. An efficient parking lot management system needs to be supported by parking space detectors that are easy to install and have stable performance. Traditional parking space detectors mainly use inductive coils buried under the ground to detect the presence of vehicles. Disadvantages of this method include bulky coils, serious damage to the ground caused by coil laying, short coil life, and high syste...
Claims
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IPC IPC(8): H04L12/28G08C17/00G08C17/02
Inventor 张帆李保海吴波姜华郑春雷刘海涛李中一鲍星合赵康周璐巍
Owner JIAXING WIRELESS SENSOR NETWORKS CENT CAS