JP2006287799A - Monitoring system and monitoring method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately monitor a worker using a monitoring camera without newly providing a complicated function. <P>SOLUTION: ID information written in an RF tag 1 is read by RF tag readers 2-1 to 2-k each having a peculiar identification number, the read ID information and an identification number are transmitted to an automatic tracking device 5 and based on the identification number received by the automatic tracking device 5, it is identified which one of the plurality of RF tag readers 2-1 to 2-k is the RF tag reader that reads the ID information written in the RF tag 1. A monitoring camera driving part 4 is then controlled so that a monitoring camera 3 photographs a range within which the identified RF tag reader can read out the ID information written in the RF tag 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a monitoring system and a monitoring method for monitoring a specific person with a camera.

  Conventionally, surveillance cameras that monitor the location where they are installed are either fixed types that shoot only a certain range while being fixed to the ceiling or wall of the location to be monitored, or the camera can be moved up and down by the operator's operation. There is a drive type that moves to the left and right to photograph multiple directions.

  If these are used to monitor the worker who is working at the installation location of the surveillance camera, the shooting range is fixed when the fixed camera is used, and the worker goes out of that range. If you do, you will not be able to shoot. In addition, when a driving camera is used, it is necessary for a person who monitors to operate the camera according to the movement of the worker.

  Therefore, in recent years, a method has been considered in which an infrared sensor is used to detect infrared rays emitted from a target to track the target and take a picture.

In addition, a subject position where a person who is a subject of photography possesses position information transmission means capable of transmitting position information using wireless or infrared, and specifies the position of the subject based on position information transmitted from the position information transmission means A method is conceived in which an identification unit is provided and an optimal camera for photographing at a position identified by the subject position identification unit is determined from among a plurality of cameras set at a monitoring location, and the photographing is performed by the determined camera. (For example, refer to Patent Document 1).
JP 2004-135019 A

  However, in the tracking method using an infrared sensor, the target is accurately recognized when a large amount of heat source is generated in the shooting area, such as shooting in the daytime or shooting where there are many lighting devices. There is a problem that it is difficult to shoot.

  Further, Patent Document 1 does not describe a specifying method for specifying the position of a subject and a determining method for determining an optimal camera. Furthermore, in the configuration described in Patent Document 1, when the position information transmitted from the position information transmitting unit is received by the subject position specifying unit in order to specify the position of the subject by one subject position specifying unit. In addition, there is a problem in that it is necessary to identify the position of the subject by detecting the reception intensity and reception direction of the received radio wave, and to provide a complicated function therefor.

  The present invention has been made in view of the problems of the conventional techniques as described above, and a monitoring system and a monitoring method capable of accurately monitoring an operator with a monitoring camera without newly providing complicated functions. The purpose is to provide.

In order to achieve the above object, in the present invention,
A monitoring system that monitors registrants using a surveillance camera,
An RF tag in which ID information for identifying the registrant is written;
A plurality of RF tag reading means each having a unique identification number, reading the ID information from the RF tag, and transmitting the read ID information together with the identification number;
Surveillance camera driving means for driving the surveillance camera;
The monitoring camera receives the identification number transmitted from the RF tag reading means, and the monitoring camera takes an image of the range in which the RF tag reading means identified by the received identification number can read the ID information written in the RF tag. And an automatic tracking device for controlling the monitoring camera driving means.

In addition, the automatic tracking device is
Read information storage means for receiving the ID information and identification number transmitted from the RF tag reading means, and temporarily storing the received ID information and identification number;
Control means for reading out and outputting the identification number stored in the read information storage means from the read information storage means;
Camera drive direction storage means for previously storing shooting range information indicating a shooting range of the monitoring camera according to the identification number;
Camera control for inputting the identification number output by the control means, reading the photographing range information corresponding to the identification number from the camera driving direction storage means, and transmitting the read photographing range information to the camera driving means Means.

In addition, the automatic tracking device has ID information storage means for pre-registering ID information written in the RF tag as registration ID information,
The control means collates the ID information stored in the read information storage means with the registered ID information stored in the ID information storage means, and if the ID information and the registered ID information match, the read information The identification number is read from the information storage means.

Also, monitoring in a monitoring system that includes a plurality of RF tag reading means that are each assigned an identification number and read ID information written in advance on the RF tag, and monitors a registrant possessing the RF tag using a monitoring camera A method,
A process of reading the ID information written in the RF tag by the RF tag reading means;
A process of transmitting the read ID information together with the identification number from the RF tag reading means;
The RF tag reading means that receives the identification number transmitted from the RF tag reading means and reads the ID information written in the RF tag based on the received identification number is one of the plurality of RF tag reading means. A process of identifying whether the RF tag reading means is,
And a process of controlling the monitoring camera so as to photograph a range in which the identified RF tag reading means can read the ID information written in the RF tag.

  In addition, there is a process of collating the ID information read by the RF tag reading means with the registered ID information registered in advance, and if the ID information matches the registered ID information, Based on the above, the RF tag reading unit that has read the ID information written in the RF tag identifies which RF tag reading unit among the plurality of RF tag reading units.

  In the present invention configured as described above, the ID information written in the RF tag is read by the RF tag reading means having a unique identification number, and the read ID information and the identification number are stored in the automatic tracking device. The monitoring camera driving means controls so that the monitoring camera images the range in which the ID information written in the RF tag can be read by the RF tag reading means transmitted and identified by the identification number received by the automatic tracking device Is done.

  As described above, a plurality of RF tag reading means for reading the ID information written on the RF tag possessed by the registrant is provided, and the imaging range of the surveillance camera is determined and controlled based on the identification number assigned to each of them. Therefore, the registrant does not have to detect the reception intensity or reception direction of the radio wave transmitted from the location information transmission means possessed by the registrant as a factor for specifying the position of the registrant in order to control the shooting direction of the surveillance camera. Can be taken and can be monitored accurately.

  As described above, in the present invention, the ID information written in the RF tag is read by the RF tag reading means having a unique identification number, and the read ID information and identification number are transmitted to the automatic tracking device, and automatically Since the monitoring camera driving unit is controlled so that the monitoring camera captures the range in which the RF tag reading unit identified by the identification number received by the tracking device can read the ID information written in the RF tag. The operator can be accurately monitored by the monitoring camera without newly providing complicated functions.

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

  FIG. 1 is a diagram showing an embodiment of the monitoring system of the present invention.

  In this embodiment, as shown in FIG. 1, an RF tag 1 possessed by an operator and in which the ID information of the operator is written in advance, and an RF tag reading unit 2-1 that reads the ID information written in the RF tag 1. 2-k, a monitoring camera 3 for monitoring the worker, a monitoring camera driving unit 4 for driving the monitoring camera 3, a monitor 6 for displaying an image taken by the monitoring camera 3, and an RF tag reading unit 2-1. ~ 2-k and the monitoring camera drive unit 4 are connected to the ID information of the RF tag 1 read by the RF tag reading units 2-1 to 2-k and the RF tag reading units 2-1 to 2-k. And an automatic tracking device 5 that controls the surveillance camera drive unit 4 by determining the photographing range of the surveillance camera 3 based on the position of the current position. Read tag 1 ID information Capacity areas are respectively a RF tag recognition area 7-1 to 7-k. In the RF tag reading units 2-1 to 2-k, different identification numbers are assigned to the RF tag reading units 2-1 to 2-k so that the RF tag reading units 2-1 to 2-k can be identified. It is held by the reading units 2-1 to 2-k.

  FIG. 2 is a diagram showing a configuration of the automatic tracking device 5 shown in FIG.

  The automatic tracking device 5 shown in FIG. 1 receives and temporarily stores the ID information of the RF tag 1 read and transmitted by the RF tag reading units 2-1 to 2-k, as shown in FIG. Read information storage unit 51, ID information storage unit 53 in which ID information of the RF tag 1 is registered and stored in advance as registration ID information, and ID information and ID information storage stored in the read information storage unit 51 The control unit 52 that collates the registered ID information stored in the unit 53, and the camera driving direction storage unit 55 in which shooting range information for shooting the RF tag recognition areas 7-1 to 7-k is stored in advance. A camera control unit 54 for controlling the shooting direction of the monitoring camera 3 with respect to the monitoring camera driving unit 4 based on the collation result in the control unit 52 and the shooting range information stored in the camera driving direction storage unit 55; I The ID information of the RF tag 1 is input in advance to the information storage unit 53, and the input setting unit 56 is used to input the imaging range information captured by the monitoring camera 3 in advance to the camera drive direction storage unit 55. .

  Below, the monitoring method in the monitoring system shown in FIG.1 and FIG.2 is demonstrated.

  FIG. 3 is a sequence diagram for explaining a monitoring method in the monitoring system shown in FIGS. 1 and 2.

  When the worker who has the RF tag 1 enters the RF tag recognition area 7-1, the ID information of the RF tag 1 is read by the RF tag reading unit 2-1 (step S1). The read ID information is transmitted to the automatic tracking device 5 by the RF tag reader 2-1 together with the identification number given to the RF tag reader 2-1 (step S2).

  When the ID information and identification number transmitted from the RF tag reading unit 2-1 are received by the automatic tracking device 5 (step S3), the received ID information and identification number are stored in the reading information storage unit 51. (Step S4).

  Then, the registration ID information stored in the ID information storage unit 53 is read from the ID information storage unit 53 by the control unit 52 (step S5), and stored in the read registration ID information and the read information storage unit 51. The ID information is verified (step S6). The registered ID information is registered in advance in the ID information storage unit 53 by the input setting unit 56. The ID information and the registered ID information may be any information that can identify the worker, such as a serial number or an employee number of the worker. By registering this ID number, the worker is registered as a monitoring target.

  If it is determined as a result of the collation, the identification number stored in the read information storage unit 51 together with the ID information is read from the read information storage unit 51 by the control unit 52 and sent to the camera control unit 54. Is output. Then, shooting range information corresponding to the identification number input to the camera control unit 54, that is, shooting range information for shooting the RF tag recognition area 7-1 is read from the camera drive direction storage unit 55 by the camera control unit 54. (Step S7). The camera drive direction storage unit 55 captures images for capturing the RF tag recognition areas 7-1 to 7-k corresponding to the identification numbers assigned to the RF tag reading units 2-1 to 2-k. The angle and focus information of the surveillance camera 3 that is a range are stored, and details thereof will be described later.

  On the other hand, if it is determined that they do not match as a result of the collation, no processing is performed.

  When shooting range information for shooting the RF tag recognition area 7-1 is read from the camera drive direction storage unit 55 by the camera control unit 54, the shooting range information is sent from the camera control unit 54 to the monitoring camera drive unit 4. The information is transmitted (step S8), and the photographing range information is received by the monitoring camera drive unit 4 (step S9).

  Then, based on the shooting range information received by the monitoring camera driving unit 4, the monitoring camera 3 is controlled by the monitoring camera driving unit 4 (step S10), and an image shot by the controlled monitoring camera 3 is displayed on the monitor 6. And displayed on the screen of the monitor 6.

  Thereafter, when the worker moves from the RF tag recognition area 7-1 to the RF tag recognition area 7-2, the ID information of the RF tag 1 is read by the RF tag reading unit 2-2 (step S11). The read ID information is transmitted to the automatic tracking device 5 by the RF tag reading unit 2-2 together with the identification number given to the RF tag reading unit 2-2 (step S12).

  When the ID information and identification number transmitted from the RF tag reading unit 2-2 are received by the automatic tracking device 5 (step S13), the received ID information and identification number are stored in the reading information storage unit 51. (Step S14).

  Then, the registration ID information stored in the ID information storage unit 53 is read from the ID information storage unit 53 by the control unit 52 (step S15), and stored in the read registration ID information and the read information storage unit 51. The ID information is verified (step S16).

  If it is determined as a result of the collation, the identification number stored in the read information storage unit 51 together with the ID information is read from the read information storage unit 51 by the control unit 52 and sent to the camera control unit 54. Is output. Then, shooting range information corresponding to the identification number input to the camera control unit 54, that is, shooting range information for shooting the RF tag recognition area 7-2 is read from the camera drive direction storage unit 55 by the camera control unit 54. (Step S17).

  On the other hand, if it is determined that they do not match as a result of the collation, no processing is performed.

  When shooting range information for shooting the RF tag recognition area 7-2 is read from the camera drive direction storage unit 55 by the camera control unit 54, shooting range information is sent from the camera control unit 54 to the monitoring camera drive unit 4. The information is transmitted (step S18), and the photographing range information is received by the monitoring camera driving unit 4 (step S19).

  Then, based on the shooting range information received by the monitoring camera driving unit 4, the monitoring camera 3 is controlled by the monitoring camera driving unit 4 (step S20), and an image shot by the controlled monitoring camera 3 is displayed on the monitor 6. And displayed on the screen of the monitor 6.

  Hereinafter, a process of storing the shooting range information in the camera drive direction storage unit 55 illustrated in FIG. 2 will be described.

  FIG. 4 is a sequence diagram for explaining processing in which shooting range information is stored in the camera drive storage unit 55 in the monitoring system shown in FIGS. 1 and 2.

  At this time, the automatic tracking device 5 is switched to the setting mode by the input setting unit 56.

  When the person who sets the shooting range information in the camera drive direction storage unit 55 has the RF tag 1 and enters the RF tag recognition area 7-1, the ID information of the RF tag 1 is read by the RF tag reading unit 2-1. (Step S51). The read ID information is transmitted to the automatic tracking device 5 by the RF tag reader 2-1 together with the identification number assigned to the RF tag reader 2-1 (step S52). The RF tag used at this time may be the RF tag 1 that is actually used by the worker, or it may be simply used for setting and the ID information can be read by the RF tag reading units 2-1 to 2-k. The collation result in step S6 described in 3 may be NG.

  After the ID information and the identification number transmitted from the RF tag reading unit 2-1 are received by the automatic tracking device 5 (step S53), the surveillance camera 3 is manually operated by the input setting unit 56 (step S54). ).

  The input setting unit 56 is provided with an input unit that can control a range that the monitoring camera 3 captures. The person who sets the image is monitored by the monitoring camera 3 while watching the video that is captured by the monitoring camera 3 and displayed on the monitor 6. The shooting range consisting of the angle and focus information can be adjusted.

  When the shooting range of the monitoring camera 3 is adjusted manually by the setting person, information on the adjusted shooting range, that is, information such as the angle and focus information of the monitoring camera 3 is transmitted from the camera control unit 54 (step S55). The transmitted information on the photographing range is received by the monitoring camera driving unit 4 (step S56).

  Based on the information of the imaging range received by the monitoring camera driving unit 4, the monitoring camera 3 is controlled by the monitoring camera driving unit 4 (step S57), and the video imaged by the controlled monitoring camera 3 is displayed on the monitor 6. It is transmitted and displayed on the screen of the monitor 6. When the setting person views the video displayed on the monitor 6 and adjusts the shooting range including the angle and the focus information again by the input setting unit 56, the shooting range in which the optimal video is displayed is determined (step S58). The information on the current shooting range is stored in the camera drive direction storage unit 55 by the input setting unit 56 (step S59).

  Thereafter, when the person who sets the shooting range information in the camera drive direction storage unit 55 has the RF tag 1 and enters the RF tag recognition area 7-2, the ID information of the RF tag 1 is obtained by the RF tag reading unit 2-2. It is read (step S60). The read ID information is transmitted to the automatic tracking device 5 by the RF tag reading unit 2-2 together with the identification number given to the RF tag reading unit 2-2 (step S61).

  After the ID information and the identification number transmitted from the RF tag reading unit 2-2 are received by the automatic tracking device 5 (step S62), the surveillance camera 3 is manually operated by the input setting unit 56 (step S63). ).

  When the shooting range of the monitoring camera 3 is adjusted manually by the setting person, information on the adjusted shooting range is transmitted from the camera control unit 54 (step S64), and the transmitted shooting range information is transmitted to the monitoring camera driving unit. 4 is received (step S65).

  Based on the information of the imaging range received by the monitoring camera driving unit 4, the monitoring camera driving unit 4 controls the monitoring camera 3 (step S66), and the video imaged by the controlled monitoring camera 3 is displayed on the monitor 6. It is transmitted and displayed on the screen of the monitor 6. When the setting person adjusts the shooting range again by the input setting unit 56 while viewing the video displayed on the monitor 6 and determines the shooting range in which the optimal video is displayed (step S67), the input setting unit 56 sets the shooting range. Information on the current shooting range is stored in the camera drive direction storage unit 55 (step S68).

  FIG. 5 is a diagram showing shooting range information stored in the camera drive direction storage unit 55 shown in FIG.

  As shown in FIG. 5, the camera drive direction storage unit 55 shown in FIG. 2 has an RF tag recognition area 7-1 corresponding to the identification numbers assigned to the RF tag reading units 2-1 to 2-k. Information necessary for the surveillance camera driving unit 4 to drive the surveillance camera 3 such as the angle and focus information of the surveillance camera 3 that is imaging range information for photographing ˜7-k is stored. Here, the identification number assigned to the RF tag reading unit 2-1 is “1111”, the identification number assigned to the RF tag reading unit 2-2 is “1112”, and the RF tag reading unit 2-k The identification number given to “9999” is set to “9999”, and the angle and focus information of the monitoring camera 3 serving as shooting range information corresponding to each are stored.

  In addition, the monitor 6 on which the video imaged by the monitoring camera 3 is displayed may be provided in the automatic tracking device 5 or installed away from the automatic tracking device 5 in a place where a person monitoring the worker is present. May be. However, when setting the shooting range information in the camera drive storage unit 55 shown in FIG. 2, the setting person needs to be installed at a position where the automatic tracking device 5 can be operated while viewing the monitor 6. .

  Moreover, although this embodiment demonstrated the case where the surveillance camera 3 installed was one, the surveillance camera optimal for installing the some surveillance camera and image | photographing the inside of RF tag recognition area 7-1 to 7-k. However, it is also conceivable that the automatic tracking device 5 is selected from a plurality of installed monitoring cameras, and the shooting direction and focus information are controlled for the selected monitoring camera. Further, even if the optimum surveillance camera is not selected, one target is intensively photographed from a plurality of directions by photographing the RF tag recognition areas 7-1 to 7-k to be photographed by the respective surveillance cameras. It is also possible to do. In addition, when a plurality of workers are present in different RF tag recognition areas 7-1 to 7-k, each video is monitored by selecting and photographing the optimum monitoring camera for photographing each of them. 6 may be displayed.

  As another embodiment, a case in which a specific player is tracked and photographed in a sporting game or the like is taken as an example although it is not related to the monitoring system.

  FIG. 6 is a diagram illustrating an example in which the RF tag reading unit is attached to the back or under the tatami of the judo hall.

  As shown in FIG. 6, RF tag recognition areas where a plurality of RF tag readers 102-1 to 102-n can read RF tags respectively on the back or under the tatami mats 101-1 to 101-m of the judo hall. 103-1 to 103-n are attached at intervals so as not to overlap each other as much as possible. In addition, an RF tag is attached to the number of each player, and the RF tag attached to the number is recognized by the RF tag reading units 102-1 to 102-n, so that the same processing as described above is performed. Even if the player moves quickly, the camera can keep up with the player's movement, and the player can be photographed accurately. FIG. 6 is merely a diagram showing an image in which the RF reading units 102-1 to 102-n are attached to the judo hall at regular intervals, and the size of the judo hall and the number of tatami mats 101-1 to 101-m are illustrated. It is not limited.

It is a figure which shows one Embodiment of the monitoring system of this invention. It is a figure which shows the structure of the automatic tracking apparatus shown in FIG. It is a sequence diagram for demonstrating the monitoring method in the monitoring system shown in FIG.1 and FIG.2. FIG. 3 is a sequence diagram for explaining processing in which shooting range information is stored in a camera drive storage unit in the monitoring system shown in FIGS. 1 and 2. It is a figure which shows the imaging | photography range information memorize | stored in the camera drive direction memory | storage part shown in FIG. It is a figure which shows the example with which the RF tag reading part was attached to the back surface or the bottom of the tatami of a judo hall.

Explanation of symbols

1 RF tag 2-1 to 2-k, 102-1 to 102-n RF tag reading unit 3 surveillance camera 4 surveillance camera drive unit 5 automatic tracking device 6 monitor 7-1 to 7-k, 103-1 to 103- n RF tag recognition area 51 Reading information storage unit 52 Control unit 53 ID information storage unit 54 Camera control unit 55 Camera drive direction storage unit 56 Input setting unit 101-1 to 101-m

Claims (5)

A monitoring system that monitors registrants using a surveillance camera,
An RF tag in which ID information for identifying the registrant is written;
A plurality of RF tag reading means each having a unique identification number, reading the ID information from the RF tag, and transmitting the read ID information together with the identification number;
Surveillance camera driving means for driving the surveillance camera;
The monitoring camera receives the identification number transmitted from the RF tag reading means, and the monitoring camera takes an image of the range in which the RF tag reading means identified by the received identification number can read the ID information written in the RF tag. A monitoring system having an automatic tracking device that controls the monitoring camera driving means. The monitoring system according to claim 1,
The automatic tracking device is
Read information storage means for receiving the ID information and identification number transmitted from the RF tag reading means, and temporarily storing the received ID information and identification number;
Control means for reading out and outputting the identification number stored in the read information storage means from the read information storage means;
Camera drive direction storage means for previously storing shooting range information indicating a shooting range of the monitoring camera according to the identification number;
Camera control for inputting the identification number output by the control means, reading the photographing range information corresponding to the identification number from the camera driving direction storage means, and transmitting the read photographing range information to the camera driving means And a monitoring system. The monitoring system according to claim 2,
The automatic tracking device has ID information storage means for pre-registering ID information written in the RF tag as registration ID information,
The control means collates the ID information stored in the read information storage means with the registered ID information stored in the ID information storage means, and if the ID information and the registered ID information match, the read information A monitoring system, wherein the identification number is read from information storage means. A monitoring method in a monitoring system that includes a plurality of RF tag reading units that are each assigned an identification number and that read ID information written in advance on an RF tag, and that monitor a registrant possessing the RF tag using a monitoring camera. There,
A process of reading the ID information written in the RF tag by the RF tag reading means;
A process of transmitting the read ID information together with the identification number from the RF tag reading means;
The RF tag reading means that receives the identification number transmitted from the RF tag reading means and reads the ID information written in the RF tag based on the received identification number is one of the plurality of RF tag reading means. A process of identifying whether the RF tag reading means is,
And a process of controlling the monitoring camera so as to photograph a range in which the identified RF tag reading means can read the ID information written in the RF tag. The monitoring method according to claim 4,
When the ID information read by the RF tag reading means and the registered ID information registered in advance are collated, and the ID information and the registered ID information match, based on the identification number A monitoring method characterized in that the RF tag reading unit that has read the ID information written in the RF tag identifies which RF tag reading unit among the plurality of RF tag reading units.

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