JP2005278029A - Monitored video image recording system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive household monitored video image recording system that does not need a dedicated video recorder. <P>SOLUTION: This monitored video image recording system comprises a camera part for photographing an object, a controller for controlling the camera part, a video image processor for processing a video image signal obtained from the camera part, a recorder for recording the video image signal, a video image display device and a portable video image display device. In the monitored video image recording system, the controller has a video image compressing part, the video image processor has a digital broadcasting decoding part and a video image signal multiplexing part, and the portable video image display device has a digital video image signal decoding function and a character and pattern generating function. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a video recording apparatus, and more particularly to an unattended surveillance video recording system that can be configured at low cost at home and the like.

  Conventionally, in a monitoring device, when a person is present in the monitoring area, or when a person is detected in the monitoring area, the image is recorded by monitoring at all times or the presence of a person is detected. Is recorded on the recording device.

  FIG. 4 shows a general surveillance video recording system for home use which has been conventionally used. 1 is a CCD camera for monitoring the vicinity of the entrance, 2 is a video recording unit for recording video taken by the CCD camera 1, 3 is a switch for notifying a visit when a visitor presses, 4 is a CCD camera 1 and video recording A control unit for controlling the unit 2, a video storage unit for storing video, 6 a video playback unit for playing back video recorded in the video storage unit 5, and a video and video playback unit for inputting video from the CCD camera 1 Reference numeral 6 denotes a display unit for displaying the video reproduced in 6, and reference numeral 8 denotes an operation unit.

  When the visitor presses the switch 3 such as an interphone, the control unit 4 drives the CCD camera 1 to start photographing the visitor. The visitor's video can be monitored from inside the house by the display device 7. At the same time, when the switch 3 is pressed, the control unit 4 also drives the video recording unit 2, and the video recording unit 2 converts the video from the CCD camera 1 into a storable format and stores it in the video storage unit 5. When an instruction to request playback of the stored video is issued from the operation unit 8, the video playback unit 6 extracts the video from the video storage unit 5, converts it into a format that can be displayed on the display unit 7, and then outputs the video to the display unit 7. To do.

  However, in a conventional home entrance monitoring device, when a visitor is willing to visit and presses a switch such as an intercom, the user who is the user can confirm its presence, but the visitor does not press the switch, so-called There was a problem that it was not possible to selectively record suspicious visitors.

FIG. 5 is intended to solve the above problem, and provides means for detecting a visitor who does not press the switch and recording the image. 1 CCD camera to 8 operation units are the same as in FIG. 11 is a distance sensor, 12 is a thermal sensor, and 13 is a visitor determination unit. By using these sensors, it is possible to detect and record even a poor visitor who does not press the switch.
Japanese Patent Laid-Open No. 9-289637

  However, in the above conventional configurations, an analog video recording device is assumed as a recording device, and basically a dedicated recording device is required as a monitoring recording device.

  In order to solve the above problems, the present invention shares a digital video recording apparatus connected to a digital broadcast receiver with a monitoring video recording apparatus. Accordingly, it is possible to provide an inexpensive home monitoring video recording system without requiring a dedicated recording device.

  In order to solve the above-described conventional problems, in the present invention, a camera unit that captures an object, a control device that controls the camera unit, a video processing device that processes a video signal obtained from the camera unit, In a surveillance video recording system comprising a recording device for recording a video signal, a video display device, and a portable video display device, the control device has a video compression unit, and the video processing device is a digital broadcast decoding unit. And a video signal multiplexing unit, and the portable video display device has a digital video signal decoding function and a character graphic generation function.

  With this configuration, it is possible to provide an inexpensive home surveillance video recording system without requiring a dedicated recording device.

  According to the surveillance video recording system of the present invention, it is possible to provide an inexpensive home surveillance video recording system without requiring a dedicated recording device.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a surveillance video recording system according to Embodiment 1 of the present invention. 1 is a digital surveillance camera, 2 is a control device, 3 is an operation unit, 4 is a video processing device, 5 is a digital recorder which is a video recording device, 6 is a display device, 7 is a speaker, 8 is an Internet network, and 9 is A mobile phone network, 10 is a base station of a mobile phone, and 11 is a mobile terminal. 21 is an interface unit with the monitoring camera 1, 22 is a control unit of the control device 2, 23 is a memory unit of the control device 2, 24 is a digital communication interface unit with the Internet network, 25 is an interface unit with the video processing device 4, 26 is a video compression unit, 27 is an interface unit with the operation unit 3, 28 is a signal bus, 31 is a small display unit of the operation unit 3, 41 is a digital broadcast tuner of the video processing device, 42 is a digital broadcast antenna, and 43 is The MPEG decoder of the video processing device 4, 44 is an AV decoder of the video processing device 4, 45 is a control unit of the video processing device 4, 46 is a remote control that is an operation unit of the video processing device 4, and 47 is a multiplexing of the video processing device 4. A processing unit, 48 is an interface unit with the control device 2, 49 is an interface unit with the digital recorder 5, 50 is a signal bus, Is a character graphics processing unit.

  When the video processor 4 is viewing a digital broadcast, the digital broadcast signal received by the digital broadcast antenna 42 is sent to the tuner 41. The tuner 41 selects a channel designated by the viewer from the remote controller 46 and demodulates it. The digital broadcast signal transport stream (hereinafter referred to as TS) is sent to the MPEG decoder 43. The MPEG decoder 43 extracts video and audio packets and sends them to the AV decoder 44. The AV decoder 44 converts the video and audio digital signals into analog signals, and outputs the video signals to the display device 6 and the audio signals to the speaker 7.

  When the next digital broadcast signal to be viewed is to be recorded, when the control unit 45 receives a recording instruction from the remote controller 46, it interfaces the video / audio digital signal input from the MPEG decoder 43 to the multiplexing processing unit 47. 49, and outputs a recording command to the digital recorder 5 to the digital recorder 5 via the interface 49. The digital recorder 5 analyzes the received control command, and if it is a recording command, records a video / audio digital signal.

  When it is desired to reproduce the recorded video / audio, upon receiving a reproduction instruction from the remote controller 46, the control unit 45 instructs the digital recorder 5 to output a reproduction instruction to the digital recorder 5 via the interface 49. The digital recorder 5 analyzes the received control command, and if it is a playback command, outputs the recorded video / audio recording list data to the interface 49. The control unit 45 sends the recording list data to the character / graphic processing unit 51. The character / graphic processing unit 51 generates and outputs a character / graphic signal as a graphic, and outputs it to the display device 6 by superimposing it on the output of the AV decoder 44. To do.

  The recording list data displayed on the display device 6 at this time is as shown in FIG. When the video / audio to be reproduced is selected by moving the cursor on the list displayed by the cursor movement button of the remote control 46 and the determination button of the remote control 46 is pressed, the number data and reproduction of the selected video / audio are selected by the digital recorder 5. The command is transferred, and the digital recorder 5 selectively reproduces the video / audio data designated by the remote controller 46. The reproduced video / audio digital signal is sent to the AV decoder 44, which converts it into an analog video / audio signal and outputs it to the display device 6 and the speaker 7.

  An operation for recording video from the surveillance camera 1 will be described. When a recording instruction is given after adjusting the orientation of the monitoring camera 1 by the operation unit 3, the monitoring camera 1 outputs the captured video signal to the interface unit 21. Since the surveillance camera 1 uses the CCD system, the captured video is a digital signal. The interface unit 21 formally adds PAT, PMT, and NIT to convert a digital video signal from the surveillance camera into an MPEG2 TS and sends it to the interface 48 of the video processing device 4 via the interface 25. The PID added at this time conforms to the ARIB standard.

  When the interface 48 receives the digital video signal from the control device 2, the control unit 45 transfers the received digital video signal to the multiplexing processing unit 47. The multiplexing processing unit 47 outputs the video TS from the monitoring camera 1 to the digital recorder 5 as it is when the digital broadcast video / audio TS is not input, and if there is a digital broadcast video / audio TS, The null packet of the video / audio TS of the digital broadcast is replaced with the video TS from the control unit 2 of the monitoring device.

  The operation of recording by the digital recorder 5 is the same as described above. Since the video from the surveillance camera can be set by the user to take one image every 0.5 to several seconds, the data amount is from 1/10 to 1/100 of digital broadcast video / audio TS. There is no problem even if it is replaced with a null packet of the digital broadcasting TS. Next, an operation for reproducing the surveillance camera video recorded in the digital recorder 5 will be described. When a playback instruction is given to the digital recorder 5 from the operation unit 3 of the monitoring device, the digital recorder 5 transmits list data of the recorded video and displays it on the small display unit 31 of the operation unit 3. The display contents at this time are the same as in FIG. The procedure for reproducing the video by moving the cursor and selecting the recorded video is the same as described above.

  An operation for recording / reproducing a monitoring camera video from the mobile terminal 11 will be described. The mobile terminal 11 is connected to a high-speed digital communication interface (hereinafter simply referred to as a communication interface) 24 of the surveillance camera device via the base station 10, the mobile phone network 9, and the Internet network 8. Since an IP address is assigned to the communication interface 24, it is possible to directly access the communication interface 24 by using the Internet communication function of the mobile terminal 11.

  By accessing the communication interface 24 from the portable terminal 11, the communication interface 24 displays the menu shown in FIG. By selecting “Record” from among these, the surveillance camera video can be recorded on the digital recorder 5 in the following procedure.

  When “recording” is selected in the menu of FIG. 3, a recording instruction is transmitted to the control unit 22 via the communication interface 24. The control unit 22 outputs the surveillance camera video and the recording command to the digital recorder 5 to the video processing device 4 via the interface 25. The output surveillance camera video is output to the multiplexing processing unit 47 via the interface 48, and the recording command is transferred to the interface 49. The operation for recording in the digital decoder 5 is the same as described above.

  Next, a procedure for displaying the monitoring camera video on the mobile terminal 11 will be described. When “monitoring camera video” is selected from the mobile terminal 11 in the menu of FIG. 3, an instruction to output the monitoring camera video is transmitted to the control unit 22 via the communication interface 24, and the control unit 22 passes through the monitoring camera interface 21. The surveillance camera video obtained in this way is transferred to the video compression unit 26. The video compression unit 26 compresses the surveillance camera video so that it can be displayed on the display unit of the mobile terminal 11, and outputs the compressed video to the Internet 8 via the communication interface 24. The display unit of the mobile terminal 11 has a size of 240 × 320 dots called QVGA. Since one video frame can be set for the surveillance camera video in 0.5 seconds to several seconds by the user, the transmission rate of the surveillance camera video is about several tens to 200 kbps. It can be transmitted without problems.

  The surveillance camera video transmitted through the mobile phone network 9 is transmitted from the base station 10 to the mobile terminal 11 by wireless communication. The mobile terminal 11 decodes the compressed video signal to the display unit after decoding the compressed video signal by a built-in decoding means (not shown). indicate.

  Next, a procedure for reproducing the surveillance camera video recorded on the digital recorder 5 and displaying it on the portable terminal 11 will be described. When “recorded list display (hereinafter simply referred to as list display)” is selected in the menu of FIG. 2, a digital recorder list display instruction is transmitted to the control unit 22 via the communication interface 24.

  The control unit 22 transmits a list display command for the digital recorder 5 to the video processing unit 4 via the interface 25. When the interface 49 of the video processing device 4 receives the list display command of the digital recorder 5, the control unit 45 of the video processing device 4 transfers the list display command to the digital recorder 5 via the interface 49. Upon receiving the list display command, the digital recorder 5 outputs the recorded list data. The recording list data is transmitted to the mobile terminal 11 in the reverse order, and the mobile terminal 11 displays the character graphic generated by the built-in character graphic processing unit (not shown) on the display unit as shown in FIG.

  When a recorded video to be reproduced is selected from the recording list displayed on the display unit and the enter button is pressed, number data of the selected reproduced video is transmitted to the digital recorder 5. When the digital recorder 5 receives the number data of the reproduced video, the digital recorder 5 reproduces the video, and the reproduced video is transmitted to the mobile terminal 11. The playback video of the digital recorder 5 is compressed and transmitted by the video compression unit 26 and displayed on the mobile terminal 11 is the same as described above.

  According to the surveillance video recording system configured as described above, it is possible to provide an inexpensive home surveillance video recording system without requiring a dedicated recording device, and a video recording device, particularly a home, etc. It is useful for unattended surveillance video recording systems that can be configured inexpensively.

The block diagram which shows the structure of the monitoring video recording system of this invention The figure which shows an example of the display screen of a recorded video list The figure which shows an example of the display screen which selects recording / playback Block diagram showing the configuration of a conventional example Block diagram showing the configuration of a conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Surveillance camera 2 Control apparatus 3 Operation part 4 Video processing apparatus 5 Video recording apparatus 6 Display apparatus 7 Speaker 8 Internet network 9 Cellular phone network 10 Mobile phone base station 11 Portable terminal 21 Interface part 22 Control part 23 Memory part 24 Interface part 25 Interface unit 26 Video compression unit 27 Interface unit 28 Signal bus 31 Small display unit of operation unit 3 41 Digital broadcast tuner 42 Digital broadcast antenna 43 MPEG decoder 44 AV decoder 45 Control unit 46 Remote control unit 47 Multiplexing processing unit 48 Interface unit 49 Interface unit 50 Signal bus 51 Character graphic processing unit

Claims (3)

A camera unit that captures an object; a control device that controls the camera unit; a video processing device that processes a video signal obtained from the camera unit; a recording device that records the video signal; and a video display device; In a surveillance video recording system composed of a portable video display device,
The control device includes a video compression unit, the video processing device includes a digital broadcast decoding unit and a video signal multiplexing unit, and the portable video display device includes a digital video signal decoding function and character graphics. A surveillance video recording system having a generation function. A camera unit that captures an object; a control device that controls the camera unit; a video processing device that processes a video signal obtained from the camera unit; a recording device that records the video signal; and a video display device; In a surveillance video recording system composed of a portable video display device,
The video signal obtained from the camera unit is transmitted to the video signal multiplexing unit of the video signal processing device, and the video signal multiplexing unit is obtained from the video signal obtained from the camera unit and the digital broadcast decoding unit. 2. The surveillance video recording system according to claim 1, wherein the video signal is multiplexed and transmitted to the video recording device, and the video signal recording device records the video signal obtained from the video signal multiplexing unit. A camera unit that captures an object; a control device that controls the camera unit; a video processing device that processes a video signal obtained from the camera unit; a recording device that records the video signal; and a video display device; In the surveillance video recording system comprising a portable video display device, the portable video display device is connected to the control device via an Internet network and a cellular phone network, and the video signal obtained from the camera unit and the 2. The surveillance video recording system according to claim 1, wherein video recorded by a recording device is compressed by the video compression unit and transmitted to the portable display device via an Internet network and a mobile phone network. .

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