Fish finder

A fish finder and transducer technology, which is applied to instruments, re-radiation of sound waves, utilization of re-radiation, etc., can solve problems such as communication interference of fish finder

Inactive Publication Date: 2015-08-26
SICHUAN CCO DISPLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing fish finder is easy to cause communication interference, and proposes a wireless fish finder

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] The fish finder of the present invention includes a probe device and a hand-held device, wherein the structure diagram of the probe device is as follows figure 2 As shown, it includes a first main control unit, an ultrasonic transducer unit, an encoding unit, a surface acoustic wave resonator unit and a first antenna unit, wherein the ultrasonic transducer unit is connected with the first main control unit, and in Under the control of the first main control unit, ultrasonic waves are transmitted to the bottom of the water, and echo signals are received. After the echo signals are sent back to the ultrasonic transducer unit, they are converted into electrical signals and input to the first main control unit;

[0020] Here, the ultrasonic waves will generate echoes when they come into contact with objects with different densities from the...

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Abstract

The invention discloses a fish finder comprising a probe device. The probe device comprises a first main control unit, an ultrasonic transducer unit, a coding unit, a surface acoustic wave resonance unit and a first antenna unit. A hand-held part comprises a second main control unit, a radio frequency reception decoding unit and a second antenna unit. A sonar detection angle of the ultrasonic transducer unit is less than 60 degrees. The wireless fish finder adds personal identification numbers of the fish finder to sonar collection information before outputting the sonar collection information to the coding unit, so that different fish finders can indentify whether the information is returned by the probe part of the corresponding fish finder after the different fish finders receive the information, and misreading due to mutual interference of radio frequency information and sonar echoes when two or more fish finders are used in the same water area is avoided.

Description

technical field [0001] The invention belongs to the field of consumer application electronics, and in particular relates to a fish finder, in particular to a wireless fish finder with a surface acoustic wave radio frequency receiving module. Background technique [0002] The probe device of the existing fish finder emits ultrasonic beams into the water and detects echoes, so as to achieve the purpose of detecting the underwater environment and fish schools. In order to obtain as much underwater information as possible, the sonar detection angle of this type of fish finder is often greater than sixty degrees, or even greater than ninety degrees. This results in that when two or more fish finder probes are close to each other, the echoes of each other are received by the other party at the same time, resulting in misreading of underwater information. [0003] Existing wireless fish finder with Surface Acoustic Wave (Surface Acoustic Wave, SAW) receiving module, the specific s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/96
CPCG01S15/96
Inventor 任海
Owner SICHUAN CCO DISPLAY TECH
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