Measuring instrument for multisite distance and azimuth in acoustic test and measuring method

Abstract

The invention relates to a measuring instrument for multisite distance and azimuth in an acoustic test and belongs to the field of hydroacoustic positioning and navigation and underwater acoustic detection. The invention aims to solve the problems that in the prior art, a GPS (Global Position System) handset, a radio base station and the like cannot simultaneously receive information of multiple substations, do not have the ability of resolving the distance azimuth of all substations and a master station, are inconvenient for real-time comparison with measurement results of a sonar system andthe like. The measuring instrument involved in the invention is characterized in that a master control unit is connected with a logic control unit through a bus and is connected with a human-machine interface unit through an FPC interface; the master control unit is separately connected with an azimuth attitude indicator and a GPS receiver through serial ports; the master control unit is connectedwith an external radio station through an Ethernet port; and a connection is established between the logic control unit and external sonar equipment. According to the invention, by using a GPS positioning technique and an underwater positioning technique, the measuring instrument involved in the invention has the functions of synchronously comparing the time with the solar system, providing adjustable higher-precision synchronizing pulse for the solar system, comparing with the measurement results of the solar system in real time and the like.

Description

technical field [0001] The invention relates to a multi-site distance and azimuth measuring instrument and a measuring method in an underwater acoustic test, belonging to the fields of underwater acoustic positioning navigation and underwater acoustic detection. Background technique [0002] In the development and use of underwater acoustic equipment, the lake and sea test is an indispensable link. In the lake and sea test, the distance test and accuracy test are often indispensable test items. In these test items, it is often necessary to record various The location information of the station is used to calculate the distance and orientation information. At present, although GPS handsets and radio base stations have the function of recording location information, they cannot automatically obtain and display the information of multiple sub-stations, and do not have the function of calculating the distance and orientation information between each sub-station and the main stat...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the existing GPS handset cannot receive information from multiple substations, does not have the ability to calculate the distance and orientation between each substation and the main station, and is inconvenient to compare with the measurement results of the sonar system in real time, the present invention provides an underwater acoustic test Medium and multi-site distance and azimuth measuring instrument

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