Intelligent detecting device for violent behavior in elevator car based on computer vision

A computer vision, elevator car technology, applied in computer parts, computing, closed-circuit television systems, etc., can solve problems such as low degree of automation, poor reliability, and no intelligent processing methods

Inactive Publication Date: 2009-10-14
ZHEJIANG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of existing elevator video monitoring devices that require artificial video monitoring, low degree of automation, almost no intelligent processing means, and poor reliability, the present invention provides an intelligent, real-time online, and reliable computer vision-based Intelligent detection device for violent behavior in the elevator car

Method used

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  • Intelligent detecting device for violent behavior in elevator car based on computer vision
  • Intelligent detecting device for violent behavior in elevator car based on computer vision
  • Intelligent detecting device for violent behavior in elevator car based on computer vision

Examples

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Embodiment 1

[0077] refer to Figure 1 to Figure 8 , a computer vision-based intelligent detection device for violent behavior in an elevator car, including a video sensor installed on the top of the elevator car, an embedded system for transmitting video data, and a monitoring center computer for monitoring the elevator car, The video sensor is connected with the embedded system through a USB interface, and the embedded system is connected with the monitoring center computer through wireless communication. The video image reading module in the car of data, the video image reading module in the car is connected to the display device, the monitoring center computer is the center of the wireless local area network of the building where the elevator is located, the video sensor and the monitoring center computer For wireless video data communication, the monitoring computer includes a microprocessor for safety precautions in the elevator car, and the microprocessor also includes: background m...

Embodiment 2

[0144] refer to Figure 1-Figure 8 , the rest are the same as Embodiment 1, the difference is the aspect of wireless video transmission. In this embodiment, a video acquisition chip for video information, a video compression chip for wavelet video compression, and a quantization chip for real-time calculation of each image are used in this embodiment. Parameters and DSP chips that complete some important algorithms, high-complexity programmable logic devices (CPLDs) for logic control of video capture chips and DSP chips, communication serial ports for wireless communications, digital video collected by video compression chips After compression, the DSP will pack the video data, and then the compressed video data will be sent by the wireless transceiver module, which conforms to the communication standard of IEEE802.11b.

[0145] The effect of the invention produced by the above-mentioned embodiments 1 and 2 is to make full use of increasingly mature technologies such as wirele...

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PUM

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Abstract

The invention discloses an intelligent detecting device for violent behavior in an elevator car based on computer vision, which comprises a video sensor arranged at the top part of the elevator car, an embedded system used for transmitting video data, and a monitoring center computer used for monitoring the interior of the elevator car. The video sensor is connected with the embedded system; the embedded system is wirelessly connected with the monitoring center computer; the monitoring center computer comprises a video image reading module in the car used for displaying the video data in the elevator car in real time; the video image reading module in the car is connected with a display device; the video sensor is communicated with the wireless data of the monitoring center computer; the monitoring center computer comprises a microprocessor used for the safety precaution in the elevator car; the microprocessor also comprises a background modeling and human body foreground object extracting module, a crowd behavior characteristic sequence extracting module, a modeling module of a hidden Markov model as well as an identifying module and an alarm module of violent behaviors. The intelligent detecting device for violent behavior in an elevator car based on computer vision has the advantages of intellectualization, real-time online and strong reliability.

Description

technical field [0001] The invention relates to an intelligent detection device for violent behavior in an elevator car based on computer vision technology, image recognition and other technologies. Background technique [0002] As buildings in cities are built higher and higher, the use of elevators is becoming more and more common, and the safety of elevators has been paid more and more attention by people. After the elevator brings convenience and speed to human life, it also challenges human safety. Due to the relatively closed nature of the elevator, it also poses a threat to human safety. In the narrow space of the elevator, people's constraints on themselves will also be reduced to the lowest point. The news media often report some incidents of elevator violence. After encountering the incidents of violence in elevators, the victims suffered great psychological and physical trauma in addition to the loss of property. The types of violence in elevators can be divided...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18G06K9/00G06K9/62G06K9/46
Inventor 汤一平陆海峰王晓军
Owner ZHEJIANG UNIV OF TECH
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