Remote transfer transmission system suitable for network-free areas and transmission method thereof

Abstract

The invention discloses a wireless sensing network remote transfer transmission system suitable for network-coverage areas and a data transmission method thereof. The system comprises a novel gateway and a repeater. The novel gateway comprises a converge node unit, a first ARM processor unit, a first U / V frequency band wireless data transmission module, a first liquid crystal display (LCD) display unit, a first storage battery, a first solar power supply management unit, a first solar battery panel and a first wideband power amplifier. The repeater comprises a second U / V frequency band wireless data transmission module, a second ARM microprocessor unit, a second LCD display unit, a general package radio service (GPRS) module, a 3G module, a second storage battery, a second solar power supply management unit, a second solar cell panel and a second wideband power amplifier. The system integrates remote wireless transmission functions of U / V frequency bands, and is capable of being normally used in outdoor environment free of public wireless network. The U / V frequency band wireless data transmission modules can change frequency in real time by means of the frequency switching method, and anti-jamming performance is improved.

Description

technical field [0001] The invention relates to the technical fields of embedded systems, wireless communications and wireless sensor networks, in particular to a remote transfer transmission system and a transmission method suitable for areas without network coverage. Background technique [0002] At present, as a new information acquisition, transmission and processing technology, wireless sensor network has been more and more widely used in military, environment, health, medical treatment, home and other fields. Among them, large-area field environment monitoring is an important field of wireless sensor network applications. Wireless sensor network has the characteristics of low power consumption, reliable data transmission, large network capacity, suitable for field environment, good compatibility, and low implementation cost. [0003] figure 1 It is a schematic diagram of the current typical wireless sensor network system structure, which includes general sensor nodes...

AI Technical Summary

Problems solved by technology

[0007] In view of the defects or deficiencies in the above-mentioned prior art, the object of the present invention is to provide a remote transfer transmission system and a transmission method suitable for areas without network coverage. The system and method shall solve the following technical problems: First, overcome the traditional The gateway device is limited by the coverage area of ​​the public wireless communication network, which meets the application requirements of the wireless sensor network in the field environment where the basic communication equipment is not complete and there is no public wireless communication network coverage; the second is to solve the problems of inconvenient power supply in the field and insufficient battery power supply, The gateway device is proposed to perform sleep scheduling to meet the application requirements of wireless sensor networks for long-term monitoring in the field; the third is to apply repeaters and frequency hopping communication to wireless sensor networks, so that wireless transmitters can change frequencies in real time and break through the limitation of single frequency band transmission , enhance the adaptability of the system, and provide technical support for the large-scale application of the sensor network in the field environment

Images