JP2005117419A - Remote monitoring system for high-speed moving body by high-speed camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote supervisory system for high-speed moving bodies, using a high-speed camera, which makes the low occurrence frequency event catching work unmanned, using the high-speed camera, and executes remote operations for the analysis of recorded data of high-speed shot pictures of events, the change of the recording conditions and the real-time picture verification. <P>SOLUTION: The remote control system comprises a high-speed camera 2 for photographing objects at a high speed, a camera controller 3 for fetching picture signals outputted from the camera 2 to execute the moving picture compression and its transmission, a recorder/analyzer 4 having functions for storing and transmitting the pictures fetched in the cameral controller 3, and a remote analyzer 5 connectable to the camera controller 3 and the recorder/analyzer 4 via a network. The high-speed camera comprises a high-speed picture recorder 12 for normally recording high speed processed images, and switches over and outputs real time picture signals and high-speed picture signals, according to a switching signal from the camera controller 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a remote monitoring system when a high-speed moving body in a production facility, a security facility, or the like is photographed with a high-speed camera, and more particularly to the network control and moving image compression / transfer technology.

  FIG. 6 is a block diagram showing a conventional method of shooting with a high-speed camera, which includes a high-speed camera 101 that shoots an object 100, an illumination 102, a high-speed recording device 103, and a monitor 104. At the time of high-speed shooting, the high-speed camera 101 and the illumination 102 are set on the shooting object 100 locally, and the person 105 starts / stops recording while watching the monitor 104, and also starts playback of the video imaged by the high-speed camera. / The stop was generally performed by the operation of a person 105 in the field.

  On the other hand, in the video device for golf swing disclosed in Japanese Patent Laid-Open No. 5-15628 (Patent Document 1), the whole body of the practitioner is photographed with the first camera, and the club head near the golf ball is photographed with the second camera. Video information taken by the first and second cameras is recorded in the imaging data recording memory, and then transferred to the monitor device to be played back in slow motion or decomposed. Recording of this video information is such that data for a predetermined time is updated and recorded retroactively from the present, and recording is started by a start instruction. Then, it is detected by the ball sensor and trigger generation circuit that the golf ball has been hit, and recording of the video information is continued for a predetermined time in response to the detection, and the recording is automatically stopped after that time. Thus, when the recorded video information is reproduced, the swings before and after the moment when the golf ball is hit are automatically reproduced.

  Further, in the production system monitoring system disclosed in Japanese Patent Laid-Open No. 2001-75621 (Patent Document 2), a video camera that captures the production apparatus and a moving image of the required operation of the production apparatus that is captured by the video camera are recorded. Recording and reproducing means for recording and reproducing at a low speed after completion of the predetermined operation, network transmission means for transmitting a video reproduced by the recording and reproducing means to a network, and the network transmission means transmitted via the network Display means for displaying a moving image. In this monitoring system, when the production device starts the operation to be monitored, it starts recording the moving image input from the video camera in response to the start signal, and receives the end signal when the operation to be monitored ends. Exit and play the video at low speed. As a result, the monitor can see the operation to be monitored in slow motion without dropping frames.

Japanese Patent Laid-Open No. 5-15628 JP 2001-75621 A

However, in such a conventional high-speed imaging system, there is no problem if the timing of the recording start and the recording end of the object to be imaged is clear, but monitoring and recording of abnormal states in production facilities and security facilities, or crime prevention When shooting a phenomenon at a high speed, such as when monitoring a purpose, it was necessary for the person to respond with great care.
Therefore, the present invention can unmanned the task of capturing low-occurrence events with a high-speed camera, and can analyze the recording data of the high-speed shot video of the event, change the recording conditions, and perform remote control for real-time video confirmation. The object is to provide a high-speed moving object remote monitoring system using a high-speed camera.

  In order to solve the above-described problem, the first configuration of the present application includes a high-speed camera capable of high-speed imaging of an object to be imaged, camera control means for capturing a video signal output from the high-speed camera and performing video compression and transmission The high-speed camera includes an image capturing unit, the recording unit storing a video captured by the camera control unit and having a transmission function, and a remote analysis unit connectable to the camera control unit and the recording unit via a network. A constant recording means for constantly processing a high-speed processed image for a predetermined time by high-speed processing of a video signal from the camera, and a real-time video signal from the imaging means and a constant recording means by a switching signal from the camera control means High-speed moving object remote monitoring system using a high-speed camera, characterized by video switching means for switching between high-speed video signals A.

  In the first configuration, camera control means having a moving image compression and transmission function corresponding to the network is used, and remote control of camera settings is enabled. Further, the recording means and the camera control means are connected via a network to record high-speed captured video and real-time video. Further, by connecting the remote analysis means, the recording means, and the camera control means via a network, the recorded file can be referred to from the remote analysis means. Further, the remote analysis means communicates with the recording means and the camera control means to control the recording timing, and the contents can be confirmed via the network.

In the second configuration of the present invention, in the first configuration, the recording unit is provided with an analysis unit that analyzes whether or not an event has occurred from a change in the captured video signal, and an event has occurred by the analysis unit. A high-speed moving object remote monitoring system using a high-speed camera characterized in that a high-speed video signal is output for a predetermined time by the video switching means.
In the second configuration, by analyzing the occurrence of the event from the video signal, it is possible to observe the high-speed video before and after the occurrence of the event by the remote analysis means. In addition, when an event occurs, the recording means can notify the remote analysis means or a mobile phone by e-mail.

According to a third configuration of the present invention, in the first or second configuration, the network is a high-speed moving body remote monitoring system using a high-speed camera that is an intranet and / or an Internet communication network.
With this network, it is possible to remotely monitor images by an Internet communication network via broadband as well as in-house high-speed LAN.

The present invention has the following effects.
(1) Once a high-speed camera and a camera control device are installed, unattended and repeated high-speed shooting before and after the event is possible.
(2) Since captured images and real-time images can be confirmed from a remote location via the Internet, there is no need to go to the site.
(3) Since recording conditions and timing can be confirmed from a remote location via the Internet, there is no need to go to the site.
(4) Since the analysis support software notifies the occurrence of an event, there is no need for human monitoring.

Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS.
FIG. 1 is a block diagram showing a high-speed moving object remote monitoring system using a high-speed camera according to an embodiment of the present invention.

This system basically includes a high-speed camera 2 that captures a high-speed image of the object 1, a camera control device 3, a recording / analysis device 4, and a remote analysis device 5.
The camera control device 3 is constructed by adding a high-speed camera control function to the moving image compression / transmission device. The high-speed video from the high-speed camera 2 is captured, compressed and transmitted, and the illumination 6 is controlled.

  The recording / analysis device 4 is installed with software for communicating with the camera control device, and sends settings to the camera control device 3. It also has an FTP server function and an e-mail transmission function. The recording / analyzing device 4 stores the video captured by the camera control device 3. The stored high-speed video and constant-speed real-time video can be confirmed from the remote analysis device 5.

The recording / analysis device 4 and the remote analysis device 5 are network-connected by a LAN (Local Area Network), that is, an intranet, via a switching hub 7.
Furthermore, it is possible to connect to the remote analysis devices 5-1, 5-2,..., 5 -N via the router 8 via a WAN (Wide Area Network), that is, the Internet network.
The remote analysis devices 5,5-1, 5-2,..., 5-N are configured by adding an electronic mail receiving function, a pop-up display function, and recorded video reproduction software to a personal computer.

FIG. 2 is a block diagram showing the means for high-speed shooting by this system.
The high-speed camera 2 has a configuration capable of pre-recording, a CCD (Charge Coupled Device) imaging unit 10 that inputs an image of the subject 1 and converts it into an electrical signal, and a high-speed processing unit that processes the video signal at high speed. 11 is switched between a high-speed video recording unit 12 that always stores a high-speed processed video signal for a predetermined time (in this example, 4 seconds), a real-time video signal from the CCD imaging unit 10 and a high-speed processed high-speed video. And a switching unit 13 for outputting. The high-speed processing unit 11 captures images that are 8 times, 16 times, 32 times,... Of the number of frames of the real-time video signal. The high-speed camera 2 outputs a real-time video signal or a high-speed video signal as an NTSC signal, but can also output it as a PAL signal according to a user request.

  The camera control device 3 includes a video capture 20 and a moving image compression unit 21 capable of real-time compression, and the compressed image is transmitted to the Internet or an intranet through the network card 22 and the switching hub 7. In order to transmit an instruction for switching between real-time video and high-speed video to the switching unit 13 in response to a request from the remote analysis devices 5, 5-1, 5-2,. The condition processing function unit 23 and the switching control unit 24 are provided.

The recording / analyzing device 4 can be composed of a notebook computer, and records the video signal transmitted from the camera control device 3 on the hard disk 32 by the recording function unit 31 via the network card 30. Further, image analysis by the image analysis support software 33 can be performed.
The camera control device 3 and the recording / analysis device 4 (notebook personal computer) are connected by a network (100BASE-TX).

  Next, a high-speed video pre-recording method will be described with reference to the time chart of FIG. 3A is a video input and video output of the high-speed camera 2, FIG. 3B is a video input and compressed video of the camera control device 3, and FIG. 3C is a trigger before the recording / analysis device 4 (recording personal computer) is triggered. (D) shows the compressed video after the trigger, and (e) shows the reproduced video after the decompression process.

  First, the trigger condition is set by the recording / analysis device 4. This trigger condition is a threshold setting for determining which level of change or greater is a large change in a state in which a temporal change in the size of the real-time video signal is being monitored.

The high-speed camera 2 normally outputs a real-time constant-speed video, but the high-speed video is always stored by the high-speed video recording unit 12 for a fixed time (in this example, 4 seconds). The camera control device 3 transfers real-time constant speed video. In addition, the camera control device 3 transfers peripheral information of the target device.
Here, the personal computer constituting the recording / analyzing apparatus 4 receives real-time constant-speed video.

  When a trigger condition occurs or a forced trigger signal is input from the remote analysis device 5, 5-1, 5-2,..., 5 -N, the camera control device 3 is connected to the switching unit 13 of the high speed camera 2. Send a switching signal to switch to high-speed camera mode. The high-speed camera 2 outputs a high-speed captured video before and after the trigger including a video before the trigger recorded in the high-speed video recording unit 12 for a predetermined time.

  The camera control device 3 compresses and transmits the high-speed captured video in the moving image compression unit 21. The camera control device 3 notifies the recording / analysis device 4 that it is in the high-speed shooting mode. The recording / analyzing apparatus 4 records the hard disk 32 including the video that has already been transmitted.

  As shown in FIG. 4, for example, a remote analysis device 5-2 is connected to the recording / analysis device 4 via the WAN, the router 8, the LAN, and the switching hub 7, thereby confirming any high-speed captured video. Can do. The thick line in the figure indicates the flow of the connection.

  Further, as shown in FIG. 5, for example, by connecting the remote analysis device 5-2 to the camera control device 3 via the WAN, the router 8, the LAN, and the switching hub 7, real-time video from the high-speed camera 2 can be displayed. It can also be confirmed.

  INDUSTRIAL APPLICABILITY The present invention can be used for a high-speed moving body remote monitoring system for monitoring and recording abnormal conditions in production facilities and security facilities, or for monitoring crime prevention purposes.

It is a block diagram which shows the remote monitoring system of the high-speed moving body by the high-speed camera which concerns on embodiment of this invention. It is a block diagram which shows the means of the high-speed imaging | photography by the system which concerns on this embodiment. It is a time chart which shows the pre-recording method of the high-speed image | video in this embodiment. It is a block diagram which shows the confirmation condition from the remote place of the high-speed picked-up image in this embodiment. It is a block diagram which shows the confirmation condition from the remote place of the real-time image | video in this embodiment. It is a block diagram which shows the method of imaging | photography with the conventional high-speed camera.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Photographing object 2 High-speed camera 3 Camera control apparatus 4 Recording / analysis apparatus 5,5-1,5-2, ..., 5-N Remote analysis apparatus 6 Illumination 7 Switching hub 8 Router 10 CCD imaging part 11 High-speed processing High-speed processing unit 12 High-speed video recording unit 13 Switching unit 20 Video capture 21 Moving image compression unit 22 Network card 23 Condition processing function unit 24 Switching control unit 30 Network card 31 Recording function unit 32 Hard disk 33 Image analysis support software

Claims (3)

A high-speed camera capable of high-speed shooting of an object to be photographed, a camera control unit that captures a video signal output from the high-speed camera and compresses and transmits a moving image, and stores and transmits a video captured by the camera control unit And a remote analysis means connectable to the camera control means and the recording means via a network,
In the high-speed camera, a real-time video from the imaging unit is obtained by a constant recording unit that constantly processes a video signal from the imaging unit and constantly records a high-speed processed image for a predetermined time, and a switching signal from the camera control unit. A high-speed moving body remote monitoring system using a high-speed camera, comprising video switching means for switching between a signal and a high-speed video signal from the constant recording means.   The recording means is provided with an analysis means for analyzing the presence / absence of an event from a change in the captured video signal, and when the event occurs by the analysis means, the video switching means outputs a high-speed video signal for a predetermined time. The high-speed moving body remote monitoring system using a high-speed camera according to claim 1.   The high-speed moving body remote monitoring system using a high-speed camera according to claim 1, wherein the network is an intranet and / or an internet communication network.

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