Underwater communication device orienting underwater robot

Abstract

The invention provides an underwater communication device orienting an underwater robot. The underwater communication device comprises transmitting equipment and receiving equipment. The transmitting equipment is connected with the standard serial communication protocol interface of a first underwater robot and modulates serial data so as to obtain carrier signals, enhances power of the carrier signals and drives a transmitting electrode by utilizing the carrier signals of which power is enhanced, forms a transmitting current loop between the transmitting electrode and water and forms a weak current field around the transmitting electrode and transmits out the weak current field. As for the receiving equipment, electromotive force is induced between the receiving electrode plates of the receiving equipment by the weak current field, the electromotive force signals are amplified, filtered and demodulated in turn, the original serial data are demodulated from the induced electromotive force signals and the serial data are transmitted to a second underwater robot through the standard serial communication protocol interface so that communication between the first underwater robot and the second underwater robot is realized. The underwater communication device orienting the underwater robot has advantages that the restrictions of application environment are less, communication reliability is high, real-time performance is great, communication delay is less and the volume is compact.

Description

technical field [0001] The invention relates to the technical field of underwater communication, in particular to an underwater communication device for underwater robots. Background technique [0002] At present, there are many ways to realize underwater robot communication, such as: radio communication method, underwater acoustic communication method, light wave communication method, etc. Although the above-mentioned underwater communication methods can effectively meet the communication requirements of underwater robots under certain conditions, they all have their own defects. [0003] (1) Radio communication method: Due to the serious attenuation of electromagnetic waves in water, the communication ability of underwater robots is greatly reduced when working underwater, and underwater communication has become a problem; [0004] (2) Underwater acoustic communication method: When applied in large-scale waters, there are problems such as complex technology, low communica...

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Problems solved by technology

[0004] (2) Underwater acoustic communication method: When applied in large-scale waters, there are problems such as complex technology, low communication rate, large communication delay, and large volume. Because underwater acoustic communication devices are generally large in size and complex in technology, they are not suitable for small underwater robots. ;

[0005] (3) Light wave communication method: When used in small-scale waters (limited field), the sound wave reflection is serious, and the multipath effect is difficult to remove, resulting in very low communication quality. The light wave communication method has a short communication distance and is greatly affected by water quality. , does not meet the performance requirements of underwater robots in terms of weight, volume, application environment, etc.

However, the patent still uses the underwater acoustic communication method, and when it is applied in a large area of ​​water, there are problems such as complex technology, low communication rate, and large delay.

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