Intelligent safety door and detection method thereof

Abstract

The invention provides an intelligent safety door and a detection method thereof, the intelligent safety door comprises a main door, an auxiliary door and a controller which are oppositely arranged, and the controller comprises at least two frequency modulation antennas, a multiplexer and a read-write module; at least one frequency modulation antenna is arranged on the main door and the auxiliary door, and the two frequency modulation antennas are controlled to switch working frequency points between different frequency points on the same working frequency band and are used for transmitting read-write signals to the opposite door and receiving corresponding response signals; the multiplexer is controlled to pass through the read-write signal and the response signal in a time division duplex mode; and the read-write module is used for controlling the multiplexer to pass through the read-write signals of the different frequency points in different time slots in a polling manner, synchronously controlling the frequency modulation antenna to be switched to the corresponding frequency point so as to transmit the corresponding read-write signal, and analyzing the response signal into label data to be output. A plurality of frequency modulation antennas of the intelligent safety door poll and radiate read-write signals of different frequency points at different time slots.

Description

technical field [0001] The invention relates to the field of radio frequency technology, in particular to an intelligent security door and an intelligent security door detection method. Background technique [0002] At present, radio frequency tags are widely used in all walks of life. By reading and writing radio frequency tags and verifying their legality, commodity and identity identification are realized, and the basic project of the Internet of Things is constructed. For example, set up a security gate at the exit of the supermarket to detect whether the goods carried by the customer have completed the payment procedure; set up security gates at the entrance of the conference, the entrance of the library, the entrance of the exhibition hall and the entrance of the company, and verify whether the person carrying or wearing the radio frequency tag has authority through the security gate Enter the above place. [0003] In practice, when multiple radio frequency tags stack...

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Problems solved by technology

[0003] In practice, when multiple radio frequency tags stacked on each other pass through the safety gate at the same time, the frequency points of some radio frequency tags may be shifted due to mutual interference between the radio frequency tags. The safety gate in the prior art only corresponds to The frequency

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