Unlock instant, AI-driven research and patent intelligence for your innovation.

Distributed exhibition hall environment monitoring system

An environmental monitoring and distributed technology, applied in the field of circuits, can solve the problems of signal disorder, real-time detection, data error of the exhibition hall environmental monitoring system, etc., and achieve the effect of improving reliability.

Active Publication Date: 2019-07-02
王琪
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The network video monitoring system is a system that combines computer IP video technology, video and audio data compression and decompression processing technology, and Internet application technology. The remote video control system can release the monitoring information monitoring center and make it reachable through the computer network. Desktop computer, so as to integrate with information management system and office automation system, better serve management, improve management level and efficiency, and the distributed exhibition hall environment monitoring system is designed based on this technology core, which improves the exhibition hall environment The management level and efficiency of monitoring, however, the distributed exhibition hall environmental monitoring system itself sometimes has failures, especially the problem of signal disorder, which leads to data errors in the distributed exhibition hall environmental monitoring system, and it is necessary to monitor the distributed exhibition hall environment Real-time signal detection of signal transmission channel in system control terminal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Distributed exhibition hall environment monitoring system
  • Distributed exhibition hall environment monitoring system
  • Distributed exhibition hall environment monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, a distributed exhibition hall environment monitoring system, including a frequency acquisition circuit 1, a frequency acquisition circuit 2, a separation differential circuit and a frequency selection output circuit, the frequency acquisition circuit 1, frequency acquisition circuit 2 respectively collect distributed Analog signals at the input and output ends of the signal transmission channel in the control terminal of the exhibition hall environment monitoring system. The signal transmission channel is a channel for receiving analog signals at the control terminal of the distributed exhibition hall environment monitoring system. The separated differential circuit uses a variable resistor RW1 , the variable resistor RW2, the capacitor C4, and the capacitor C5 divide the output signal of the frequency acquisition circuit 1 into two signals, one of which uses the transistor Q1, the transistor Q2 and the variable resistor R7 to form a push-pull circuit to red...

Embodiment 2

[0016] Embodiment 2. On the basis of Embodiment 1, the frequency selection output circuit uses diode D7 and diode D8 to form a switch circuit to limit the signal potential, and simultaneously uses resistance R19-resistance R21 and capacitor C13-capacitor C15 to form a frequency selection circuit to filter out The single-frequency signal is sent to the alarm module in the distributed exhibition hall environmental monitoring system through the signal transmitter E1, which ensures the amplitude and frequency range of the trigger signal. When the distributed exhibition hall environmental monitoring system fails, the operational amplifier AR1 Output a high-level signal to trigger the alarm module in the distributed exhibition hall environmental monitoring system to work and alarm, otherwise it will not work. The cathode of diode D7 is connected to the output terminal of op amp AR1, the anode of diode D8 and the output terminal of op amp AR1. The anode of diode D7 is connected to the...

Embodiment 3

[0017] Embodiment 3, on the basis of Embodiment 2, the frequency acquisition circuit 1 and the frequency acquisition circuit 2 respectively collect the analog signals at the input end and the output end of the signal transmission channel in the control terminal of the distributed exhibition hall environment monitoring system, and stabilize the voltage The tube D1 and the voltage regulator tube D1 play the role of voltage stabilization, and the thyristor VTL1 is a detection switch. When the signal at the output end of the signal transmission channel in the control terminal of the distributed exhibition hall environment monitoring system is abnormal, the thyristor VTL1 is turned on at this time. , to achieve the effect of calibrating the output signal of the operational amplifier AR1, which improves the reliability of the circuit. The power terminal of the signal frequency collector J1 is connected to one end of the capacitor C1 and the power supply +5V, the ground terminal of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a distributed exhibition hall environment monitoring system. The system comprises a frequency acquisition circuit 1, a frequency acquisition circuit 2, a separation differential circuit and a frequency selection output circuit, wherein the frequency acquisition circuit 1 and the frequency acquisition circuit 2 are used for respectively acquiring analog signals at the inputend and the output end of a signal transmission channel in the distributed exhibition hall environment monitoring system control terminal; the separation differential circuit uses a variable resistorRW1, a variable resistor RW2, a capacitor C4 and a capacitor C5 to divide an output signal of the frequency acquisition circuit 1 into two paths of signals, and the frequency selection output circuituses a resistor R19-a resistor R21 and a capacitor C13-a capacitor C15 to form a frequency selection circuit to screen out a signal with a single frequency and send the signal to an alarm module in the distributed exhibition hall environment monitoring system through a signal emitter E1; the signal condition of a signal transmission channel in a control terminal of the distributed exhibition hallenvironment monitoring system can be detected in real time, and meanwhile the signal frequency is converted into a trigger signal of an alarm module in the distributed exhibition hall environment monitoring system.

Description

technical field [0001] The invention relates to the field of circuit technology, in particular to a distributed exhibition hall environment monitoring system. Background technique [0002] The network video monitoring system is a system that combines computer IP video technology, video and audio data compression and decompression processing technology, and Internet application technology. The remote video control system can release the monitoring information monitoring center and make it reachable through the computer network. Desktop computer, so as to integrate with information management system and office automation system, better serve management, improve management level and efficiency, and the distributed exhibition hall environment monitoring system is designed based on this technology core, which improves the exhibition hall environment The management level and efficiency of monitoring, however, the distributed exhibition hall environmental monitoring system itself s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18
CPCH04N7/18
Inventor 王琪
Owner 王琪