A device and method for underwater data wireless return transmission based on buoy and SD card temporary storage

Abstract

An underwater data wireless return device and method based on a buoy and SD card temporary storage, the device includes a buoy, underwater data collection equipment and water data collection equipment; the buoy includes a flat-bottomed spindle-shaped steel double-layer container, an antenna a, a wireless Transmission module, storage module and microprocessor a; underwater data collection equipment includes spindle-shaped steel double-layer container, buoy, eccentric wheel motor and microprocessor b; water data collection equipment is mainly composed of processor and antenna b11. After the buoy leaves the underwater detection part, it rises rapidly under the action of buoyancy. After reaching the water surface, it transmits data to the water data collection part through the LORA protocol, and achieves fast data return and guarantees the authenticity of the data through physical means. Through this device, the speed of data return underwater and the true rate of data are greatly improved. At the same time, the device is also highly integrated and can be installed on various underwater detectors. It has high flexibility and is suitable for underwater detection instruments. work is less affected.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to an underwater data wireless return device and method based on buoys and SD cards temporarily stored. Background technique [0002] With the expansion of the world's population and the rapid consumption of resources, the competition for resources between countries and enterprises has become increasingly fierce, and the development of land resources has become saturated. The richness of marine resources has attracted the attention of countries and enterprises, and further stimulated underwater exploration. At present, there are mainly two general transmission methods for these data: wired transmission and wireless transmission. Although wired transmission is stable in data transmission, it greatly limits the scope and flexibility of the detector. Therefore, compared to wired transmission, enterprises prefer wireless transmission. However, because seawater is rich in minerals, ...

AI Technical Summary

Problems solved by technology

However, because seawater is rich in minerals, it is an excellent conductor and has a strong skin effect. Therefore, electromagnetic waves may be greatly affected when they are transmitted in seawater. Our original application rate on land Very high microwave, medium wave and short wave radio signals will show strong attenuation or even no transmission in sea water

Therefore, at present, our underwater radio transmission uses three frequency bands of extremely low frequency, ultra-low frequency and low frequency for transmission, which will greatly increase the cost, and the transmission distortion will be greatly increased if the distance exceeds a certain range.

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