Monitoring system based on terahertz communication

A monitoring system, terahertz technology, applied in the direction of transmission monitoring, transmission system, image communication, etc., can solve problems such as complex wiring, low data transmission efficiency, and excessive data volume, so as to reduce the number of wiring, improve communication efficiency, and improve The effect of communication quality

Active Publication Date: 2016-10-12
SHENZHEN INST OF TERAHERTZ TECH & INNOVATION +1
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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 provide a monitoring system based on terahertz communication, which aims to solve the problem that the existing security monitoring system usually uses five types of network cables to trans...

Method used

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  • Monitoring system based on terahertz communication
  • Monitoring system based on terahertz communication
  • Monitoring system based on terahertz communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, the monitoring system based on terahertz communication provided in this embodiment includes a camera 10, an access switch 20, an aggregation switch 30, and a core switch 40.

[0040] The plurality of cameras 10 are connected to one access switch 20 through five types of network cables, and multiple access switches 20 are connected to one aggregation switch 30 through five types of network cables. The multiple aggregation switches 30 wirelessly communicate with one core switch 40 through terahertz waves. Communication.

[0041] In specific applications, the number of cameras 10, access switches 20, aggregation switches 30, and core switches 40 can be specifically set according to the size of the actual monitoring area and other monitoring requirements. In some cases, cameras 10 and access switches 20 The number of aggregation switches 30 can be one or two and is not limited to multiple, and the number of core switches 40 can also be two or more.

[0...

Embodiment 2

[0052] Such as image 3 As shown, in this embodiment, the access switch 20 includes a coding and modulation module 21, the aggregation switch 30 includes a terahertz transmitter 31, and the core switch 40 includes a terahertz receiver 41 and a demodulation and decoding module connected to the terahertz receiver 41. Module 42.

[0053] Such as Figure 4 As shown, in this embodiment, the terahertz transmitter 31 includes a first local oscillator signal filter 311, a first harmonic mixer 312, and a first radio frequency signal filter 313 connected in sequence.

[0054] Such as Figure 5 As shown, in this embodiment, the terahertz receiver 41 includes a second local oscillator signal filter 411 and a second harmonic mixer 412 connected to the second local oscillator signal filter 411.

[0055] In an embodiment, the first local oscillator signal filter, the first radio frequency signal filter and the second local oscillator signal filter are all band-pass filters.

[0056] In this embodime...

Embodiment 3

[0064] Such as Image 6 As shown, in this embodiment, the terahertz transmitter 31 further includes a first frequency multiplier 314, a first amplifier 315, a first local oscillator signal isolator 316, and a first low noise amplifier 317 and The first radio frequency signal isolator 318, the output end of the first local oscillator signal isolator 316 is connected to the input end of the first local oscillator signal filter 311, and the input end of the first low noise amplifier 317 is connected to the first The output terminal of the RF signal filter 313.

[0065] The first local oscillator signal is output to the first frequency multiplier 314, the first amplifier 315, and the first local oscillator signal isolator 316 after frequency multiplication, amplification, and isolation. The local oscillator signal filter 311, the first terahertz radio frequency signal output after filtering by the first radio frequency signal filter 313 is amplified and isolated by the first low nois...

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Abstract

The invention is applied to the field of monitoring, and provides a monitoring system based on terahertz communication. The monitoring system comprises cameras, access switches, aggregation switches and a core switch; multiple cameras are connected to one of the access switches correspondingly via category 5 network cables; multiple access switches are connected to one of the aggregation switches via the category 5 network cables; and the multiple aggregation switches are in wireless communication with the core switch via terahertz wave. According to the monitoring system based on the terahertz communication provided by the invention, by adopting the terahertz wave, the data transmission between the core switch and the multiple aggregation switches of the monitoring system is realized, the communication efficiency can be effectively improved, the communication quality is improved, a high-level switch port of the monitoring system can be connected to more video management devices, more monitoring services are expanded, and the wiring number can be effectively reduced.

Description

Technical field [0001] The invention belongs to the field of monitoring, and particularly relates to a monitoring system based on terahertz communication. Background technique [0002] Security monitoring system is an electronic system or network that uses video technology to detect and monitor fortified areas to display and record images of fortified areas in real time. In a large-scale security monitoring system, usually hundreds of network cameras are used, and the cameras are managed hierarchically according to the user's monitoring management requirements to realize the monitoring of commercial buildings, large communities, factories and other areas. [0003] However, existing security monitoring systems usually use Category 5 network cables to transmit surveillance data captured by cameras. As a result, when there are a large number of cameras or high-resolution cameras are used for surveillance, the data transmission efficiency is reduced due to excessive data volume. And t...

Claims

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Application Information

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IPC IPC(8): H04N7/18
CPCH04N7/181H04B17/00H04N7/18
Inventor 陈文健杨彬丁庆
Owner SHENZHEN INST OF TERAHERTZ TECH & INNOVATION
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