JP2006229825A - Monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring system which is easily installed in a plurality of monitoring places adjacent to each other and quickly provide information obtained during monitoring. <P>SOLUTION: The monitoring system 1 includes: a plurality of voice receiving parts for receiving voice; and a plurality of imaging cameras arranged in proximity to the voice receiving parts and for monitoring an object. The monitoring system 1 is provided with: a first correlation table 4 in which voice information is beforehand related to impact sound emitted by the object; a second correlation table 6 in which the impact sound emitted by the object is related to an occurrence place where the occurrence of the impact sound is predicted; a voice pattern recognizing means 5 using the first correlation table 4 to perform a pattern recognition of the impact sound from the voice information; an operating means 7 using the second correlation table 6 to perform operation of activating an imaging camera arranged in proximity to the voice receiving part, where the occurrence of the impact sound is predicted from the impact sound subjected to pattern recognition in the voice pattern recognizing means 5; and a display means 19 for displaying an imaged video. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a monitoring system that includes an imaging camera and an audio transmission / reception unit at a plurality of monitoring locations, and selects a monitoring location by voice.

A conventional monitoring system is shown in FIG.
As shown in FIG. 5, a conventional monitoring system 20 includes an audio input 21 for inputting the sound of a monitoring place from a microphone, an A / D conversion 22 for converting the input sound into a digital signal, and an audio converted into a digital signal. Audio compression 23 for compressing the audio, network processing unit 24 for outputting the compressed audio to the network, audio expansion 27 for expanding the compressed audio received by the network processing unit 24, and converting the expanded audio into an analog signal A D / A converter 26, an audio output 25 for inputting sound converted to analog and generating sound through a speaker, a video input 28 for imaging a subject by an imaging camera installed at a monitoring location, and a video signal; A / D converter 29 for converting the digital signal into a digital signal, and compressing the digitally converted video signal for transmission by the network processing unit 24 An image compression 30, and a.

  The monitoring system 20 adds an IP address to connect the audio of the monitoring location and the video of the subject to the network, distributes the audio of the monitoring location and the video of the subject on the network, and transmits via the network. Monitor anywhere. In addition, when instructing the monitoring location when monitoring at an arbitrary location, the designated audio is transmitted by designating the IP address via the network. When there are a plurality of monitoring locations, the monitoring system 20 is installed at each monitoring location, and an IP address is added to each to connect to the network.

  In this way, by adding an IP address to each monitoring system 20 and connecting to the network, monitoring of a plurality of monitoring locations can be easily performed at any location by reading out the IP addresses via the network. .

Patent Document 1 describes a network system that includes an imaging camera, a voice transmission / reception unit, and a network processing unit at each of a plurality of installation locations, and communicates video and audio. Information was selected.
JP 2003-219382 A

  However, when a plurality of monitoring locations or installation locations are close to each other, installing a monitoring system having a plurality of networked imaging cameras, audio transmission / reception units, and a network processing unit at each monitoring location There is a problem that it is difficult to secure a place, and the operability is via a network, so information at the time of monitoring cannot be obtained quickly.

  Accordingly, the present invention has been made to solve the above-described problems, and provides a monitoring system that can be easily installed at a plurality of adjacent monitoring locations and can quickly obtain information at the time of monitoring. With the goal.

  According to a first aspect of the present invention, there is provided a monitoring system including a plurality of sound receiving units that receive sound and a plurality of imaging cameras that are distributed in proximity to the sound receiving unit and monitor a subject. A first correlation table associated with the impact sound emitted by the subject, a second correlation table associated with the impact sound emitted by the subject and the location where the impact sound is predicted to be emitted, and the first correlation table. Using the voice pattern recognition means for recognizing the impact sound from the voice information, and using the second correlation table, the impact sound is emitted from the impact sound pattern-recognized by the voice pattern recognition means. An operation means for performing an operation of operating the imaging camera disposed in proximity to the audio receiving unit at a predicted location, and an image captured by the imaging camera Providing a monitoring system characterized by comprising a display means for displaying an image.

  According to the present invention, in a monitoring system having a plurality of audio receiving units that receive audio and a plurality of imaging cameras that are closely distributed to the audio receiving unit and monitor a subject, audio information and impact sound emitted by the subject are generated in advance. By using the first correlation table, the second correlation table associated with the impact sound generated by the subject and the generation location where the impact sound is predicted to be generated, and the first correlation table, the pattern of the impact sound from the audio information is used. An imaging camera disposed in the vicinity of a voice receiving unit in a place where an impact sound is predicted to be generated from an impact sound recognized by the voice pattern recognition unit, using an audio pattern recognition unit that performs recognition and a second correlation table; By providing operation means for performing the operation to be operated and display means for displaying the video imaged by the imaging camera, it is provided at a plurality of adjacent monitoring locations. It is possible to get a quick easy and information at the time of monitoring.

A monitoring system according to an embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a diagram showing an overall configuration of a monitoring system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a configuration of the selection circuit in the embodiment of the present invention.
FIG. 3 is a diagram illustrating a first correlation table and a second correlation table.
FIG. 4 is a diagram showing a monitoring system according to another embodiment of the present invention.

  As shown in FIG. 1, the monitoring system according to the first embodiment of the present invention includes a set of audio input including a microphone installed at a monitoring place, audio output including a speaker, and video input including an imaging camera. The monitoring devices 2a to 2d, the selection circuit 3 for selecting the input / output signals A0 to A3 of the monitoring devices 2a to 2d, and the A / D for converting the audio signal in the selected set of input / output signals into digital signals A conversion 9; an audio compression 10 that compresses the audio signal converted into a digital signal and applies it to the network processing circuit 11; a network processing circuit 11 that connects an audio input / output signal and a video signal to the network; and a network processing circuit The compressed audio signal is input from 11 and is expanded and applied to the D / A converter 12. The expanded audio signal is converted into an analog signal and sent to the selection circuit 3. The D / A converter 12, the A / D converter 14 that inputs the video signal selected from the selection circuit 3 and converts it into a digital signal, and the image that is compressed into the digital signal and applied to the network circuit 11 And compression 15.

  As shown in FIG. 2, the selection circuit 3 of the monitoring system 1 inputs the audio signals Si0 to Si3 output from the monitoring devices 2a to 2d and outputs the audio signal from the audio signal that has generated a sound such as an impact sound. A first correlation table 4 identified by a predetermined table, a voice pattern recognition means 5 for recognizing the type of the voice signal from the voice signal identified by the table by pattern recognition, and a table indicating the recognized voice signal at a predetermined location The second correlation table 6 for identifying the monitoring location that has emitted a sound such as an impact sound, the operation means 7 for designating the imaging camera of the identified monitoring location and outputting the operation signal, and the operation signal being input for identification A monitoring place selection 8 for selecting and inputting / outputting an input / output signal of the monitoring device of the selected monitoring place, and a video display means for displaying an image by connecting to the video signal from the selected input / output signal Consisting of.

Next, the operation of the monitoring system will be described.
As shown in FIG. 1, when any one of the audio signals Si0 to Si3 of the plurality of monitoring devices 2a to 2d is input to the selection circuit 3, which subject sound P0 is added to the first correlation table shown in FIG. Is selected. Next, the voice pattern recognition means 5 recognizes the type of the subject sound P0 as the pattern P1. The recognized pattern P1 is added to the second correlation table 6, and the monitoring place P2 indicated by the recognized pattern is extracted.

  Then, the control signal P3 of the extracted monitoring place P2 is generated by the operation means 7, and in addition to the monitoring place selection 8, any of the extracted input / output signals A0 to A3 of the selected place is selected. Since the selected input / output signal is input / output from the selection circuit as the audio output signal Si10, the audio input signal So10, and the video signal Vi10, this is processed and distributed to the network to monitor the monitoring place P2.

  In this way, only a small number of connected devices are required for the network, and the monitoring devices 2a to 2d do not require equipment to be connected to the network, and can quickly select a monitoring location by voice input.

FIG. 4 shows a monitoring system according to another embodiment of the present invention.
A monitoring system according to another embodiment of the present invention captures an audio input buffer group 50 for inputting audio from a monitoring location, an audio output buffer group 51 for outputting audio to the monitoring location, and a subject at the monitoring location with an imaging camera. A video input buffer group 52 for inputting a video signal, a gain control group 53 for controlling the gain of the audio input, a mixing circuit 54 for mixing the audio input group, and an A for converting the mixed audio input group into a digital signal. / D conversion 55, a compression circuit 56 that compresses a digital audio signal and applies it to the network circuit 62, a decompression circuit 59 that receives and decompresses the compressed speech signal from the network processing circuit 62, and the decompressed speech signal D / A conversion 58 for converting to an analog signal, and audio output for outputting an audio signal converted to an analog signal A selection device 57 that selects a buffer, an A / D conversion group 60 that converts a video signal into a digital signal, and a video compression group 61 that compresses the video signal converted into a digital signal and applies it to a network processing circuit. Is done.

  In another embodiment of the present invention, the mixing ratio of each audio input in the mixing circuit 54 is set to a value other than the gain control that has been input from the audio output buffer group 51 via the network from the destination of the audio stream. The level of the gain control group 53 is lowered and the two-way dialogue is performed clearly.

  In this way, in other embodiments of the present invention, the interactive dialogue can be performed clearly.

It is a figure which shows the whole structure of the monitoring system in embodiment of this invention. It is a figure which shows the structure of the selection circuit in embodiment of this invention. It is a figure which shows a 1st correlation table and a 2nd correlation table. It is a figure which shows the monitoring system in other embodiment of this invention. It does not show a conventional monitoring system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Monitoring system, 2a-2d ... Monitoring apparatus, 3 ... Selection circuit, 4 ... 1st correlation table, 5 ... Voice pattern recognition means, 6 ... 2nd correlation table, 7 ... Operating means, 8 ... Monitoring place selection, 9 ... A / D conversion, 10 ... Audio compression, 11 ... Network processing circuit, 12 ... D / A conversion, 13. ..Audio expansion, 14 ... A / D conversion, 15 ... Image compression, 16a-16d ... Audio input, 17a-17d ... Audio output, 18a-18d ... Video input, 19. ..Display means 50... Audio input buffer group 51. Audio output buffer group 52. Video input buffer group 53. Gain control group 54. A / D conversion, 56 ... compression circuit, 57 ... selection device, 5 ... D / A converter, 59 ... decompression circuit, 60 ... A / D converter, 61 ... video compression, 62 ... network processing circuit

Claims (1)

In a monitoring system having a plurality of audio receiving units that receive audio and a plurality of imaging cameras that are distributed close to the audio receiving unit and monitor a subject,
A first correlation table in which the audio information and the impact sound generated by the subject are associated in advance;
A second correlation table in which the impact sound emitted by the subject and the occurrence location where the impact sound is predicted to be emitted are associated;
Voice pattern recognition means for performing pattern recognition of the impact sound from the voice information using the first correlation table;
Using the second correlation table, an operation for operating the imaging camera disposed in the vicinity of the voice receiving unit in a place where the impact sound is predicted to be emitted from the impact sound recognized by the voice pattern recognition unit. Operating means for performing
Display means for displaying video captured by the imaging camera;
A monitoring system characterized by comprising:

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