The invention discloses an RFID-based non-contact elevator system, which comprises RFID electronic tags, a reader, and an identification unit in communication connection with the reader. The RFID electronic tags are arranged on elevator buttons to form a vertical tag array, and transmit wireless radio frequency signals through an antenna. The reader reads the radio frequency signals transmitted by the RFID electronic tags, and sends the radio frequency signals to the identification unit. The identification unit identities a triggered button based on signal strength values and phase values of the radio frequency signals, to control an elevator to run to a floor corresponding to the triggered button. According to the system, the start of a button pressing action (the segmentation of the button pressing action) is judged by using RSSI data, an RSSI value and the phase values are considered at the same time during identification, the fine-granularity identification of different button pressing actions is realized by using a more sensitive phase value characteristic, the fine-granularity identification is realized, and the identification accuracy is greatly improved.
本发明公开一种基于RFID的无接触电梯系统,包括:RFID电子标签、阅读器及与阅读器通讯连接的识别单元;RFID电子标签设于电梯按钮上,形成垂直的标签阵列,通过天线发射无线射频信号;阅读器读取各RFID电子标签发射的射频信号,并发送至识别单元,识别单元基于射频信号的信号强度值及相位值识别触发按键,控制电梯运行至触发按键对应的楼层;本发明利用RSSI数据判断按键动作的起始(按键动作分割),且识别时同时考虑RSSI值和相位值,利用更灵敏的相位值特性实现不同按键动作的细粒度识别,实现细粒度识别,在识别准确度上有了大幅度提升。
RFID-based non-contact elevator system
基于RFID的无接触电梯系统
2021-07-30
Patent
Electronic Resource
Chinese
European Patent Office | 2021
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