an intercom system

Abstract

A walkie-talkie system, including a walkie-talkie and a control center, a central processing unit is arranged in the walkie-talkie, a display screen and an operation panel are arranged on the walkie-talkie, a GPS positioning module, an audio transceiver connected to the central processing unit, a wireless The communication module, the mobile phone card, and the intercom are connected to the control center through the wireless communication module. The intercom is also provided with an inner camera and an outer camera, and the inner camera and the outer camera are respectively connected to the central processing unit through a video decoder. Through the improvement of the existing technology, the present invention realizes real-time communication in different places, and can transmit audio and video signals in real time, accurately confirms the position of the holder, and has precise positioning, and observes the situation of the holder in real time through the control center. The holder provides timely and effective support, especially suitable for police officers and field explorers.

Description

technical field [0001] The invention relates to a walkie-talkie, in particular to a walkie-talkie system capable of long-distance dialogue and GPS positioning. Background technique [0002] At present, walkie-talkies are widely used in public security, security, civil aviation, logistics, railways, water conservancy, tourism and other industries, and GPS terminals are also widely used in public security, shipping and other industries. Public security organs often need to use walkie-talkies and GPS terminals when they go out for patrols, field adventures, etc., to fully ensure the personal safety of personnel and facilitate information communication. Once an accident occurs, it is convenient to accurately locate the specific location of personnel and carry out reinforcement operations. [0003] In order to facilitate portability and reduce costs in various aspects, someone proposed to incorporate the GPS terminal into the walkie-talkie to achieve integration, so that the carr...

AI Technical Summary

Problems solved by technology

However, at present, walkie-talkies with GPS positioning function generally use the data communication channel of the walkie-talkie to transmit GPS positioning information. Due to the limitation of the communication capacity of the walkie-talkie, mutual interference between walkie-talkies, and limited signal coverage, such devices cannot be used on a large scale.

[0004] In addition, the existing walkie-talkies have a very limited dialogue coverage area and can only be used within the coverage area of ​​the base station. This coverage area is often only a few hundred meters to a kilometer range. After this range, no signal can be received. , unable to carry out normal dialogue function

Once an emergency occurs, it is often not handled well, and timely and effective support cannot be obtained, which is very inconvenient for the staff

Images