Acousto-magnetic electronic commodity anti-theft system and detection method thereof
A technology for electronic commodities and anti-theft systems, applied in the direction of electrical alarms, etc., can solve the problems of low detection rate and false alarms of anti-theft systems
Inactive Publication Date: 2014-12-10
XI'AN POLYTECHNIC UNIVERSITY
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[0004] The purpose of the present invention is to provide an acousto-magnetic electronic commodity anti-theft system, which solves the problems of low detection rate and false alarms in the existing electronic commodity anti-theft system
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[0062] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0063] The acousto-magnetic electronic commodity anti-theft system of the present invention, such as figure 1 As shown, including CPU processor 1, CPU processor 1 is respectively connected with receiving circuit module 2, transmitting circuit module 3, mode selection circuit module 4, synchronizing circuit 5, sound and light alarm module 6, FLASH storage unit 7 and power supply 8; The receiving circuit module 2 is connected with the ADC input interface of the CPU processor 1, the transmitting circuit module 3 is connected with the PWM output interface of the CPU processor 1, the sound and light alarm module 6, the mode selection circuit module 4 and the synchronization circuit 5 are connected with the CPU processor 1. The I / O port is connected; the FLASH storage unit 7 is connected to the SSI interface of the CPU processor 1 to form the process...
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The invention discloses an acousto-magnetic electronic commodity anti-theft system and a detection method thereof. The acousto-magnetic electronic commodity anti-theft system comprises a CPU processor which is connected with a receiving circuit module, a transmitting circuit module, a mode selecting circuit module, a synchronizing circuit, an audible and visual alarm module, a FLASH memory unit and a power source, respectively; the detection method comprises the steps of initializing to start a system major cycle, carrying out data sampling, performing operation on the sampled data and comparing the data with a standard tag signal characteristic, and determining whether the similarity satisfies an alarm condition and then giving an alarm. The acousto-magnetic electronic commodity anti-theft system is characterized in that a plurality of digital signal processing algorithms are effectively combined to realize quick and effective detection; the acousto-magnetic electronic commodity anti-theft system also comprises a time sequence control program of the whole system for guaranteeing synergetic and ordered working of various functional modules of the system; the problems of low detection rate and false alarm of an existing electronic commodity anti-theft system are solved; besides, the acousto-magnetic electronic commodity anti-theft system is long in detection distance, high in detection rate and low in false alarm rate.
Description
technical field [0001] The invention belongs to the technical field of anti-theft of electronic commodities, relates to an acousto-magnetic electronic commodity anti-theft system, and also relates to a detection method of the system. Background technique [0002] Electronic Article Surveillance (EAS) is widely used in large supermarkets, shopping malls and some high-end shops and other consumer places. The emergence of this system will change the traditional man-to-man and other methods, and use high-tech means to give commodities a self-defense ability, so that security measures can be implemented on each commodity, which can effectively prevent the theft of commodities and improve economic benefits for businesses. . [0003] A complete set of electronic commodity anti-theft system consists of three parts: ①Detector (Sensor), ②Deactivator (Deactivator), ③Electronic Label and Tag. The detector, that is, the detection device is particularly important, and the detector can b...
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IPC IPC(8): G08B13/24
Inventor 景军锋赵卓陈耀武李鹏飞屈肖军
Owner XI'AN POLYTECHNIC UNIVERSITY