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Elevator video monitoring device based on full digital wireless communication

A wireless communication and video monitoring technology, applied in closed-circuit television systems, electrical components, transmission systems, etc., can solve the problems of high installation accuracy, low installation accuracy, and poor practicability, and achieve low installation accuracy, compact equipment, and low cost Effect

Inactive Publication Date: 2009-06-17
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to overcome the disadvantages of poor practicability, high installation precision requirements and low cost of existing elevator video monitoring devices, the present invention provides an elevator video monitoring device based on full digital wireless communication with good practicability, low installation precision and low cost

Method used

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  • Elevator video monitoring device based on full digital wireless communication
  • Elevator video monitoring device based on full digital wireless communication
  • Elevator video monitoring device based on full digital wireless communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] refer to figure 1 , figure 2 , Figure 4 , Figure 5 , a kind of elevator video monitoring device based on all-digital wireless communication, comprising a video sensor 1 installed on the top of the elevator car, a monitoring center computer 2 for monitoring the elevator, the video sensor 1 is connected with the monitoring center computer 2, the Said monitoring center computer 2 includes a display module 9 for displaying elevator video data in real time, the display module 9 is connected to a display device, and the video sensor 1 is connected to a microprocessor 3 for wireless transmission of video data, the The microprocessor 3 includes: an image recording module 4, which is used to record the video information in the elevator car; an image processing module 5, which is used to compress and encode, multiplex and modulate the recorded video data into compressed video data The first wireless transceiver module 6 is used to send compressed video data according to com...

Embodiment 2

[0047] refer to figure 1 , figure 2 , Figure 4 , Figure 5 , the image recording module 4 of the present embodiment is a video capture chip, and the image processing module 5 includes a video compression chip for image compression, a DSP chip for calculating the quantization parameters of each field image, and a chip for processing The video acquisition chip and the DSP chip are logic-controlled programmable controllers, and the first wireless transceiver module 6 and the second wireless transceiver module 7 are wireless transceiver modules conforming to the wireless communication protocol.

[0048] In terms of software, it is mainly through programming DSP chips and high-complexity programmable logic devices to realize all-digital wireless video and audio communication.

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Abstract

The invention relates to a lifter video detector based on digit wireless communication. Wherein, it comprises a video sensor mounted at the top of lifter, a detecting center computer which comprises the display module used to display lifter video; the video sensor is connected to microprocessor; the microprocessor comprises image recording module for recording the video inside the lifter, image processing module for compressing, coding, complexing, and modulating the recorded video into compressed video data, and the first wireless sender / receiver for based on communication standard sending compressed video data; and the detecting center computer comprises the second wireless receiver / sender for based on the communication standard receiving compressed video data, an image decompressing module for decompressing, decomplexing and demodulating the received data into video data. The invention has low mounting accuracy and low cost.

Description

(1) Technical field [0001] The invention relates to an elevator video monitoring device. (2) Background technology [0002] With the increase of high-rise buildings in our country, the frequency of people using elevators has increased, and the hidden dangers of elevators have become increasingly prominent. Every year, the number of deaths and injuries in elevator accidents in my country has reached more than 4 digits. Due to elevator accidents, people are trapped in elevators. There are even more people, and even the same person was trapped in the elevator several times in a week for more than several hours. These elevator safety accidents caused serious psychological trauma to the elevator users; Criminals also use the special space of the elevator to commit crimes, and are seriously endangering people's lives and living safety. It can be said that elevator accidents are "fierce than tigers". [0003] The types of elevator safety accidents can be divided into door system ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04L29/06
Inventor 汤一平孟利民严海东柳圣军金海明
Owner ZHEJIANG UNIV OF TECH