Multi-device frequency hopping communication method

Abstract

The invention relates to a multi-device frequency hopping communication method, which adopts a brand new design communication strategy, based on each frequency hopping sequence formed by each communication frequency point applicable between an instruction receiving and transmitting device and a data response device, the instruction receiving and transmitting device firstly detects signals in an environment, so that under the condition that the applied frequency hopping sequence is eliminated, the frequency hopping sequence is detected by the instruction receiving and transmitting device and the data response device; other frequency hopping sequences are selected to be applied by the instruction transmitting and receiving device, and corresponding instruction signals are constructed to realize communication with corresponding data response equipment; in this way, the conflict of frequency points under simultaneous communication among multiple devices can be effectively reduced, communication among the devices is carried out based on the frequency hopping sequence of the unfixed frequency points, and the anti-interference capability of device communication is improved; according to the whole scheme design, the anti-interference capability of the equipment reader-writer on environmental factors such as other reader-writers, communication base stations or multipath recession in the surrounding environment can be improved.

Description

technical field [0001] The invention relates to a multi-device frequency hopping communication method, which belongs to the technical field of radio frequency communication. Background technique [0002] In the theory of electronics, when current flows through a conductor, a magnetic field will be formed around the conductor; when an alternating current passes through the conductor, an alternating electromagnetic field will be formed around the conductor, called electromagnetic waves. And radio frequency is radio frequency current (referred to as RF), which is the abbreviation of a high-frequency alternating electromagnetic wave. When the electromagnetic wave frequency is higher than 100kHz, the electromagnetic wave can propagate in the air and be reflected by the ionosphere at the outer edge of the atmosphere to form a long-distance transmission capability. We call this high-frequency electromagnetic wave with long-distance transmission capability radio frequency. Radio fr...

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Problems solved by technology

[0003] In the application, the communication between the radio frequency transceiver device and the radio frequency response equipment is based on the communication frequency point, but when there are multiple groups of radio frequency communication interactions in the environment, the frequency points based on the communication between different groups of objects may conflict, thereby affecting the radio frequency Communication quality, so frequency point allocation is an important issue in the radio frequency communication process, but there is no efficient solution for this in the existing technology

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