Antenna activation source for identifying radio frequency with dynamic and adjustable distance

Abstract

The present invention discloses an antenna activation source for identifying a radio frequency with a dynamic and adjustable distance. The work mode of the antenna activation source comprises the number of the effective antennas, the work order of each antenna, the emission power of each antenna and the work time of each antenna; the other ends of a second dial switch, a RS485 communication circuit and a high frequency wireless module are connected with a master control circuit, and the RS485 communication circuit realizes the configuration of the master control circuit work mode through signals from the network; the master circuit allows the low-frequency antenna ID coding and antenna activation source ID coding from a memory to generate low-frequency activation signals including low-frequency antenna ID coding, antenna activation source ID coding and the work mode information according to the setting work mode; and the antenna activation source also includes a signal indication light connected with the master control circuit configured to display the work state of the antenna activation source. The signal covering range is adjustable, and the antenna activation source for identifying radio frequency with a dynamic and adjustable distance can be suitable for different application environments.

Description

technical field [0001] The invention relates to the field of radio frequency identification, in particular to a radio frequency antenna activation source with a dynamically adjustable identification distance. Background technique [0002] In recent years, the Internet of Things is a new technology that people generally pay attention to. As a key technology of the Internet of Things, radio frequency identification technology has developed rapidly. The management of complex environments such as communities, mining areas, and highways has always been highly valued by the relevant state departments, but disputes and even accidents caused by negligent management still occur frequently, causing unnecessary losses of many individuals and the interests of the country. How to strengthen management measures, how to accurately, real-time, and quickly grasp the status of non-residents in residential areas, the distribution and flow of personnel in mining areas, the efficiency of road to...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a radio frequency antenna activation source with dynamically adjustable identification distance. The radio frequency identification system increases the coverage of low frequency signals, improves the stability of low frequency signals, solves the interference problem between antennas, and can realize precise positioning, The recognition distance is adjustable, which solves the problem of small signal coverage of a single antenna activation source, multiple card readers read the same electronic tag at the same time and is unstable, and reduces power consumption, prolongs the service life of the battery, and can be used for a long time. Malfunction

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