JP2009004977A - Apparatus and method for selecting supervisory camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an supervisory camera selecting apparatus for selecting the optimum supervisory camera to pick up details of an imaging object. <P>SOLUTION: The apparatus includes a plurality of base station devices 30, 32 and 34 for receiving radio-waves from a mobile terminals 500, an exchange 400 connected for communication with the plurality of base stations, a plurality of supervisory cameras 12 arranged within the radio-ave area of the plurality of base stations, a display 300 for displaying images on the basis of an image signal, and an image selecting device 200 for receiving image signals picked up with the plurality of supervisory cameras, selecting an image to be displayed on the display, and for displaying the selected image on the display. The exchange transmits position identifying information for identifying the position of the mobile terminal to the image selecting device based on the received signal when the signal is received from the mobile terminal via the base station and the image selecting device determines the supervisory camera corresponding to the identified position based on the position identifying information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a surveillance camera selection device and a surveillance camera selection method, and more particularly to a surveillance camera selection device and a surveillance camera selection method for selecting an appropriate surveillance camera in a facility or the like where a plurality of surveillance cameras are arranged. .

  Conventionally, thermal power plants, chemical plants, and the like have been provided with a plurality of surveillance cameras in the facility or site. Then, in the central control room or the like, the video of the surveillance camera is displayed to monitor the equipment and facilities. As a result, it is possible to grasp the situation of the facility in real time in the central control room, and to appropriately recognize the situation and judge the situation without actually being at the site.

  For example, when trouble occurs, it is rare that the trouble itself is detected by a surveillance camera, and in many cases, it is the case of an alarm device that notifies the abnormality of the facility or the visual observation of the person in charge during the patrol. There are many. When a trouble or the like occurs in the facility, the person who rushes to the site where the trouble actually occurs and the person who can make an appropriate decision on the trouble are often different. In other words, when a trouble actually occurs, the person in charge of the field heads for the field, but it is necessary to obtain a work instruction from an experienced person in the central control room in order to appropriately deal with this trouble.

  Therefore, a veteran person in the central control room judges from the video captured by the surveillance camera, and gives a verbal instruction to the person in charge at the site using a telephone or the like. Here, there are cases where a plurality of surveillance cameras are installed in such a facility, and it is not possible to specify which surveillance camera should be selected in the event of a trouble. In particular, inexperienced on-site personnel may be upset due to troubles, and it may not be possible to identify a surveillance camera that appropriately captures the trouble situation without notifying the central control room of appropriate information.

According to Patent Document 1, a mobile phone of a person in charge in the field transmits a signal of the current position, and based on this signal, a surveillance camera tracks the plant and sends an image to the central control room. Are listed.
JP 2003-60973 A

  However, in the monitoring system of Patent Document 1, in a large-scale plant where a large number of cameras are arranged, a monitoring camera that appropriately captures an object to be imaged is not always selected, and an object to be imaged. Therefore, it is impossible to focus on the target to be imaged by adjusting the position and angle of the surveillance camera with respect to the selected surveillance camera.

  An object of the present invention is to provide a monitoring camera selection device and a monitoring camera selection method capable of selecting an optimal monitoring camera by a mobile terminal device that transmits radio waves and capturing an image of an object to be imaged in detail. To do.

  Specifically, the present invention provides the following.

  (1) A plurality of base station devices that receive radio waves from a mobile terminal device, an exchange that is communicably connected to the plurality of base station devices, and a plurality of base stations that are arranged in a radio wave area of the plurality of base station devices A monitoring camera, a display device that displays an image based on an image signal, and an image signal captured by each of the plurality of monitoring cameras, receives an image to be displayed on the display device, and displays the image on the display device An image selection device, and when the exchange receives a signal from the portable terminal device via the base station device, the exchange specifies a position of the portable terminal device based on the received signal. Position specifying information to be transmitted to the image selecting device, the image selecting device determines a monitoring camera associated with the specified position based on the position specifying information, and the image selecting device includes: in front Determined surveillance camera selects the image to be captured, and displaying on the display device, the monitoring camera selection device.

  The surveillance camera selection device of (1) includes a plurality of base station devices that receive radio waves from a mobile terminal device, an exchange that is communicably connected to the plurality of base station devices, and a radio wave area of the plurality of base station devices. A plurality of surveillance cameras arranged, a display device that displays an image based on the image signal, and an image signal captured by each of the plurality of surveillance cameras is received, an image to be displayed on the display device is selected, and the display device is selected. And an image selection device to be displayed. When the exchange receives a signal from the portable terminal device via the base station device, the exchange of the portable terminal device is based on the received signal. The position specifying information for specifying the position is transmitted to the image selecting device, the image selecting device determines the monitoring camera associated with the specified position based on the position specifying information, and the image selecting device is determined. Monitoring Camera selects the image to be captured, displayed on the display device.

  According to the invention described in (1), in the large-scale plant in which a plurality of monitoring cameras are arranged by determining the monitoring camera based on the position specifying information of the mobile terminal device, the image selection device, The person who manages the surveillance camera or the person in charge who carries the mobile terminal device, etc. displays the image from the surveillance camera that sufficiently captures the object to be imaged on the display device without manually selecting the surveillance camera. Is possible.

  (2) The surveillance camera selection device according to (1), wherein a plurality of surveillance cameras are associated with one position specifying information, and the image selection device is identified from the mobile terminal device. A monitoring camera selection device that receives object position information and determines one of the plurality of monitoring cameras based on the specified object position information.

  The surveillance camera selection device of (2) is the surveillance camera selection device of (1), in which a plurality of surveillance cameras are associated with one position specifying information, and the image selection device is a mobile terminal device. The specific object position information is received from the one of the plurality of monitoring cameras, and one monitoring camera is determined based on the specific object position information.

  According to the invention described in (2), even if a plurality of surveillance cameras are associated with the position specifying information for specifying the position of the mobile terminal device, it is based on the specified object position information. Since it is possible to determine an optimal monitoring camera, it is possible to select the optimal monitoring camera for the object to be imaged.

  (3) The surveillance camera selection device according to (2), wherein the specific object position information received by the image selection device from the mobile terminal device is audio information from the mobile terminal device, The monitoring camera, wherein the image selection device performs voice recognition based on the voice information, and determines one monitoring camera among the plurality of monitoring cameras based on a result of the voice recognition. Selection device.

  The surveillance camera selection device according to (3) is the surveillance camera selection device according to (2), and the specific object position information received from the mobile terminal device is voice information from the mobile terminal device, The image selection device performs voice recognition based on the voice information, and determines one monitoring camera among the plurality of monitoring cameras based on the result of the voice recognition.

  According to the invention described in (3), even if a plurality of surveillance cameras are associated with the position specifying information for specifying the position of the mobile terminal device, the optimum information is obtained based on the sound information. Since one monitoring camera can be determined, it is possible to select an optimal monitoring camera for the object to be imaged. Furthermore, since the position specifying information is voice information, a person in charge carrying the mobile terminal device can easily transmit the position specifying information.

  (4) The surveillance camera selection device according to (2), wherein the specific object position information received by the image selection device from the mobile terminal device is an electromagnetic wave from the mobile terminal device, The monitoring camera selection device, wherein the image selection device determines one monitoring camera among the plurality of monitoring cameras based on the image relating to the electromagnetic wave.

  The surveillance camera selection device according to (4) is the surveillance camera selection device according to (2), wherein the specific object position information received from the mobile terminal device is an electromagnetic wave from the mobile terminal device, and image selection is performed. The apparatus determines one monitoring camera among the plurality of monitoring cameras based on the image regarding the electromagnetic waves.

  According to the invention described in (4), even if a plurality of surveillance cameras are associated with the position specifying information for specifying the position of the mobile terminal device, an optimal one is based on electromagnetic waves. Therefore, it is possible to select an optimal monitoring camera for the object to be imaged. Furthermore, since the position specifying information is an electromagnetic wave, the person in charge carrying the mobile terminal device can reliably specify the position of the target to be imaged.

  (5) The surveillance camera selection device according to any one of (2) to (4), wherein the image selection device receives the specific object position information from the portable terminal device, and the specific object position information And transmitting a signal for adjusting the determined imaging angle and focal length of the one monitoring camera to the one monitoring camera, and imaging according to the one monitoring camera receiving the signal. A surveillance camera selection device that adjusts the degree of angle and focal length.

  The surveillance camera selection device according to (5) is the surveillance camera selection device according to any one of (2) to (4), in which the image selection device receives the position information of the specified object from the portable terminal device, and Based on the specific object position information, a signal for adjusting the imaging angle and the focal length of the determined one monitoring camera is transmitted to the one monitoring camera, and the one monitoring camera receives the signal. Adjust the degree of imaging angle and focal length.

  According to the invention described in (5), the image selection apparatus transmits a signal for adjusting the imaging angle and the degree of the focal length to the one monitoring camera, and determines the one monitoring camera. Since the camera can receive the signal and adjust the imaging angle and the focal length, it is possible to accurately capture the details of the object to be imaged.

  (6) The surveillance camera selection device according to any one of (1) to (5), wherein, when the base station device receives a signal from the mobile terminal device, the radio field intensity of the received signal is set. , To the exchange, the exchange generates position specifying information for specifying the position of the mobile terminal device based on the radio field intensity of the received signal, and transmits the position specifying information to the image selection device A surveillance camera selection device, characterized in that:

  (6) The surveillance camera selection device is any one of the surveillance camera selection devices according to (1) to (5), and the base station device receives the received signal when receiving the signal from the mobile terminal device. Is transmitted to the switchboard, and the switchboard generates position specifying information for specifying the position of the mobile terminal device based on the signal strength of the received signal, and transmits the position specifying information to the image selecting apparatus. .

  According to the invention described in (6), since the position specifying information for specifying the position of the mobile terminal device is generated based on the radio field intensity of the received signal, the exchange side accurately grasps the position of the mobile terminal device. It becomes possible.

  (7) The surveillance camera selection device according to any one of (1) to (6), wherein correspondence map information in which positions of the plurality of surveillance cameras are associated with the position specifying information is stored. A map storage device, wherein the image selection device specifies the location of the mobile terminal device based on the location specification information, and the specification based on the correspondence map information stored in the correspondence map storage device A monitoring camera associated with the determined position, and the image selection device selects an image captured by the determined monitoring camera and displays the image on the display device. .

  (7) The surveillance camera selection device according to (7) is the surveillance camera selection device according to any one of (1) to (6), and is a correspondence in which the positions of a plurality of surveillance cameras are associated with position specifying information. A map storage device storing map information is further provided, and the image selection device specifies the position of the mobile terminal device based on the position specification information, and based on the map information stored in the map correspondence storage device. The monitoring camera associated with the specified position is determined, and the image selection device selects an image captured by the determined monitoring camera and displays it on the display device.

  According to the invention described in (7), in order to determine the monitoring camera based on the corresponding map information, it is possible to flexibly cope with fine geographical information and determine an appropriate monitoring camera for the imaging target. Is possible.

  (8) The surveillance camera selection device according to any one of (1) to (7), wherein the plurality of base station devices receive radio waves from a mobile terminal device that is a personal handy phone. A surveillance camera selection device.

  In the surveillance camera selection device described in (8), the plurality of base station devices receive radio waves from the mobile terminal device which is a personal handy phone.

  According to the invention described in (8), it is possible to provide a surveillance camera selection device that can employ a personal handy phone as a portable terminal device.

  (9) A plurality of base station devices that receive radio waves from the mobile terminal device, an exchange that is communicably connected to the plurality of base station devices, and a plurality of base stations that are arranged in the radio wave area of the plurality of base station devices A monitoring camera, a display device that displays an image based on an image signal, and an image signal captured by each of the plurality of monitoring cameras, receives an image to be displayed on the display device, and displays the image on the display device An image selection device, and a method executed in a system including at least the exchange, when the exchange receives a signal from the portable terminal device via the base station device, the received signal And a process of transmitting position specifying information for specifying the position of the mobile terminal device to the image selecting device, and the image selecting device is associated with the specified position based on the position specifying information. A monitoring camera selection method comprising: a process for determining a determined monitoring camera; and a process in which the image selection device selects an image captured by the determined monitoring camera and displays the image on the display device. .

  According to the invention described in (9), in the large-scale plant in which a plurality of monitoring cameras are arranged by determining the monitoring camera based on the position specifying information of the mobile terminal device, the image selection device, The person who manages the surveillance camera or the person in charge who carries the mobile terminal device, etc. displays the image from the surveillance camera that sufficiently captures the object to be imaged on the display device without manually selecting the surveillance camera. Is possible.

  (10) A plurality of base station devices that receive radio waves from the mobile terminal device, an exchange connected to be communicable with the plurality of base station devices, and a plurality of base stations that are arranged in a radio wave area of the plurality of base station devices A monitoring camera, a display device that displays an image based on an image signal, and an image signal captured by each of the plurality of monitoring cameras, receives an image to be displayed on the display device, and displays the image on the display device An image selection device, and a method executed in a system including at least the correspondence map information in which the positions of the plurality of monitoring cameras are associated with the position specifying information, and the exchange, When a signal from the mobile terminal device is received via the base station device, position specifying information for specifying the position of the mobile terminal device is received based on the received signal. A process of transmitting to the image, a process in which the image selecting device determines a monitoring camera associated with the specified position based on the position specifying information and the corresponding map information, and the image selecting apparatus, And a process of selecting an image captured by the determined monitoring camera and displaying the image on the display device.

  According to the invention described in (10), in the large-scale plant in which a plurality of monitoring cameras are arranged by determining the monitoring camera based on the position specifying information of the mobile terminal device, the image selection device, The person who manages the surveillance camera or the person in charge who carries the mobile terminal device, etc. displays the image from the surveillance camera that sufficiently captures the object to be imaged on the display device without manually selecting the surveillance camera. Is possible. In addition, since the monitoring camera is determined based on the corresponding map information, it is possible to flexibly handle fine geographical information and determine an accurate monitoring camera for the imaging target.

  According to the present invention, the image selection device manages the monitoring camera in a large-scale plant in which a plurality of monitoring cameras are arranged by determining the monitoring camera based on the position specifying information of the mobile terminal device. The person in charge or the person in charge carrying the mobile terminal device can display the image from the monitoring camera that sufficiently captures the object to be imaged on the display device without manually selecting the monitoring camera. is there.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a surveillance camera system 1 according to a preferred embodiment of the present invention. In FIG. 1, the surveillance camera system 1 includes surveillance cameras 10, 12, 14, units 50 a, 50 b, and 50 c to be monitored, a mobile terminal device 500, base station devices 30, 32, and 34, and an exchange 400. The image selection device 200 and the display device 300 are included.

  The monitoring cameras 10, 12, and 14 are monitoring cameras for imaging the units 50 a, 50 b, and 50 c to be monitored, and are connected to the image selection device 200 so that they can communicate with each other by wire or wirelessly. These networks may be a LAN (Local Area Network) or may be connected via a public network. The monitoring cameras 10, 12, and 14 automatically adjust the imaging angle and focal length of the camera based on data transmission / reception with the image selection device 200. Specifically, the monitoring cameras 10, 12, and 14 may be automatic tracking cameras.

  The portable terminal device 500 is a terminal that can wirelessly communicate with the base station devices 30, 32, and 34, and may be a personal handy phone. The mobile terminal device 500 transmits / receives data indicating the antenna ID serving as the ID of the base station device 30, 32, 34, the electric field strength of the radio wave, the received time, and the like from each of the base station devices 30, 32, 34. . The base station devices 30, 32, and 34 transmit the antenna ID, electric field strength, and time to the exchange 400, and the exchange 400 calculates the latitude and longitude of the mobile terminal device 500 from the three-point survey method. Here, the calculation of the latitude and longitude may be performed by the mobile terminal device 500 based on the received data and transmitting the calculated latitude and longitude to the base station devices 30, 32, and 34.

  The mobile terminal device 500 and the base station devices 30, 32, and 34 may be connected via a relay for relaying radio waves of the mobile terminal device 500.

  FIG. 2 is a functional block diagram showing the image selection device and the display device according to the embodiment. In FIG. 2, the image selection device 200 receives the position specifying information from the exchange 400, determines the monitoring camera 12, selects the determined image of the monitoring camera 12, and displays it on the display device 300. The image selection device 200 includes at least a communication unit 210, a control unit 220, and a storage unit 230. The image selection device 200 is a control device communicably connected to the exchange 400 and the display device 300, and may be a computer. The image selection device 200 may always receive and store image signals from the monitoring cameras 10, 12, and 14, and appropriately receive image signals from the preselected monitoring cameras 10, 12, and 14, You may remember.

  The control unit 220 is a device that controls the image selection device 200 and may be a CPU (Central Processing Unit). The communication unit 210 is a device for realizing communication with the exchange 400, is a network adapter, and may include a modem, a cable modem, and an Ethernet (registered trademark) adapter. The storage unit 230 is a device that stores an image based on image signals received from the monitoring cameras 10, 12, and 14, and may be a hard disk, a memory, or the like.

  The display device 300 displays an image selected by the image selection device 200 or displays a screen for accepting data input to the user. A display device such as a cathode ray tube display device (CRT) or a liquid crystal display device (LCD). It may be.

  Since the image selection apparatus 200 is installed in a management room of the entire plant such as the central control room, the image selection apparatus 200 may include input means such as a keyboard and a mouse for receiving input from the administrator, Etc. may be provided with means for outputting.

  FIG. 3 is a flowchart for illustrating processing of the image selection device 200. As a premise, as shown in FIG. 1, the position of the portable terminal device 500 is specified by the exchange 400 (or the portable terminal device 500), and a signal related to the position specifying information indicating the specified position is sent from the exchange. Receive (step S10: YES). If not received, this routine is not started (step S10: NO).

  To describe the position specifying information, reference is made to FIG. FIG. 4 is a position specifying information table showing position specifying information transmitted from the exchange 400 to the image selection device 200. The location specification information table includes base station device reception information including terminal specification information such as a telephone number for identifying the mobile terminal device 500, antenna ID, time, and electric field strength, and reception of the base station device. It consists of latitude and longitude calculated from the information.

  The image selection device 200 reads the position specifying information (step S20). Next, the image selection device 200 reads the corresponding map information (step S30). To explain the corresponding map information, reference is made to FIG. FIG. 5 is a diagram showing a correspondence map information table which is a preferred embodiment of correspondence map information. The correspondence map information table is a table in which the surveillance camera is associated with the latitude and longitude of the surveillance camera. The image selection device 200 can identify the monitoring camera by referring to the corresponding map information table.

  The image selection device 200 determines a monitoring camera from the read position specifying information and corresponding map information (step S40). That is, the corresponding number of the corresponding monitoring camera is determined from the latitude and longitude serving as the position specifying information, and the monitoring camera is determined. For example, since the values of latitude and longitude of the mobile terminal device 500 existing in the latitude and longitude of FIG. 4 are “35.681361” and “139.76662,” respectively, the camera 102 falls within this range. The image selection device 200 determines the camera 102 as an appropriate surveillance camera.

  Next, the image selection device 200 selects an image captured by the determined surveillance camera (step S50). Then, the image selection device 200 displays the selected image on the display device 300 (step S60).

  Next, based on FIGS. 6 to 8, a plurality of monitoring cameras 12a to 12c are associated with one piece of position specifying information, and one monitoring camera 12c is selected from the plurality of monitoring cameras 12a to 12c. An embodiment to be described will be described. As illustrated in FIG. 6, it is assumed that a fire has occurred and a portion where smoke is emitted from the unit 50a to be imaged is to be imaged. All of the monitoring cameras 12a to 12c have the same latitude and longitude in the corresponding map information of FIG. Therefore, as will be described later, the image selection device 200 selects the monitoring camera 12c based on the specific object position information.

  A person in charge using the mobile terminal device 500 inputs voice from the mobile terminal device 500, and the mobile terminal device 500 transmits this voice to the exchange 400 through the base station device 30. This audio information is transmitted from the exchange 400 to the image selection device 200. The control unit 220 of the image selection device 200 receives the transmitted voice information and executes a voice recognition process for the voice information.

  FIG. 8 is a flowchart of processing executed by the image selection apparatus 200 in a mode of performing voice recognition processing. As a premise, as in FIG. 3, the position of the mobile terminal device 500 is specified by the exchange 400 (or the mobile terminal device 500), and a signal related to the location specifying information indicating the specified location is received from the exchange. (Step S310: YES). If not received, this routine is not started (step S310: NO).

  Then, the image selection device 200 reads the position specifying information as described above (step S320). Next, corresponding map information is read (step S330). Next, the image selection device 200 determines whether audio information has been input (step S340). When the image selection device 200 determines that there is an input of audio information, an audio analysis process is executed (step S350: YES). If it is determined that no voice information has been input, the process is interrupted (step S350: NO).

  Next, the image selection device 200 refers to the audio correspondence data (step S360). In order to explain the voice correspondence data, reference is made to FIG. FIG. 7 is a table in which the voice analysis information is associated with the corresponding monitoring camera. The image selection device 200 stores a table in which the audio information and the correspondence number of the monitoring camera are associated with each other, and determines the optimal monitoring camera 12a to 12c based on the information recognized from the audio information (step S370). .

  For example, assuming that the unit 50a is the first unit in the substation room, the person in charge of the field heading for the unit 50a inputs the word “fire in front of the first unit in the substation room” to the mobile terminal device 500. As a result, the image selection apparatus 200 recognizes the sound information and determines the monitoring camera as the monitoring camera 12c with reference to the table of FIG.

  Next, the image selection device 200 selects an image captured by the determined monitoring camera 12 (step S380). Then, the image selection device 200 displays the selected image on the display device 300 (step S390).

  Therefore, even when the plurality of monitoring cameras 12a to 12c are associated with the position specifying information for specifying the position of the mobile terminal device 500, the optimal one monitoring camera 12c is based on the audio information. Therefore, it is possible to select the optimal monitoring camera 12c for the object to be imaged. Furthermore, since the position specifying information is voice information, the person in charge carrying the mobile terminal device 500 can easily transmit the position specifying information.

  Next, a mode in which electromagnetic waves are used as the object position information instead of the above-described audio information will be described with reference to FIGS. As a premise, the portable terminal device 500 has a function capable of irradiating electromagnetic waves such as infrared rays, and the image selection device 200 can determine that these electromagnetic waves such as infrared rays have been imaged. Equipped with image analysis function.

  FIG. 9 is a conceptual diagram showing that the person in charge at the site irradiates infrared rays using the mobile terminal device 500. A person in charge using the mobile terminal device 500 uses the mobile terminal device 500 to irradiate the imaging target portion of the unit 50a with infrared rays. Among the monitoring cameras 12a to 12d, it is the monitoring camera 12b that senses infrared rays most in the imaging range. Therefore, the image selection device 200 determines the monitoring camera 12b that most senses infrared rays as the monitoring camera to be selected.

  FIG. 10 is a flowchart of processing executed by the image selection apparatus 200 in a mode using infrared rays. As a premise, as in FIG. 3, the position of the mobile terminal device 500 is specified by the exchange 400 (or the mobile terminal device 500), and a signal related to the location specifying information indicating the specified location is received from the exchange. (Step S410: YES). If not received, the image selection device 200 does not start this routine (step S410: NO).

  Then, the image selection device 200 reads the position specifying information (step S420). Next, the corresponding map information is read (step S430). Next, the image selection device 200 determines whether there is an image in which infrared rays are captured (step S440). That is, the image selection device 200 receives image signals from the plurality of monitoring cameras 12a to 12c, but when a predetermined infrared ray is captured as an image, the image selection device 200 detects this and monitors the selection of the monitoring camera 12b. The camera 12 is determined.

  When the image selection apparatus 200 determines that there is an image in which infrared rays are captured (step S440: YES), the image selection device 200 compares the infrared areas (step S450), and monitors the image having the widest infrared area. The camera 12b is determined as the surveillance camera 12 to be selected (step S460). That is, when there are a plurality of monitoring cameras 12a to 12c in which infrared rays are captured, the monitoring camera 12b that captures an image having the widest infrared area is selected. Thereby, it is possible to determine the monitoring camera 12b that captures an image that most accurately captures the imaging target as the monitoring camera 12b to be displayed.

  If it is determined that there is no infrared imaged image, the process does not proceed (step S440: NO).

  Next, the image selection device 200 selects an image captured by the determined monitoring camera 12b (step S470). Then, the image selection device 200 displays the selected image on the display device 300 (step S480).

  Therefore, even when a plurality of monitoring cameras 12a to 12d are associated with the position specifying information for specifying the position of the mobile terminal device, the optimum one monitoring camera 12b is determined based on infrared rays. Therefore, it is possible to select the optimal monitoring camera 12b for the object to be imaged. Furthermore, since the position specifying information is infrared, the person in charge carrying the mobile terminal device 500 can easily transmit the position specifying information.

  Next, processing in which the monitoring camera 12 adjusts the imaging angle and the imaging position will be described with reference to FIG. FIG. 11 is a flowchart illustrating processing performed by the image selection device 200 and the monitoring camera 12 for adjusting the imaging angle and the imaging position. This flowchart may be executed after step S460 of FIG. 10, that is, after the determination process of the monitoring camera 12 by the image selection device 200.

  First, the image selection device 200 calculates the position and ratio in the image of the infrared area (step S500). That is, the position of the area where infrared rays are imaged and the ratio of the area where infrared rays are imaged are calculated with respect to the entire image among the images displayed on the display device 300.

  Next, the image selection device 200 determines the scheduled imaging focal length and the scheduled imaging angle (step S510). For example, if the ratio of the infrared area image is low and this infrared area is detected at the upper right of the entire image, the imaging angle is adjusted so that the infrared area is the center of the entire image. It is desirable to be able to do it. That is, the surveillance camera 12 that is taking an image should be adjusted so as to face the upper right angle. In addition, the infrared area is at the center of the entire image, but the focal distance is long. Therefore, when the ratio of the infrared area is low, it is desirable to reduce the focal distance.

  Here, when the infrared area is detected in the upper right with respect to the entire image, the image selection device 200 determines the scheduled imaging angle so that the infrared area is centered in order to adjust the imaging angle. . In addition, although the infrared area is in the center of the entire image, but the focal distance is long, when the proportion of the infrared area is low, the scheduled imaging focal distance is determined so as to make the focal distance closer.

  Here, with regard to the specific adjustment level of the scheduled imaging angle and scheduled imaging focal length, how much the imaging target can be moved by adjusting the imaging angle in the case of a predetermined focal length. A data table is stored in advance in the image selection device 200. By referring to this data table, the image selection device 200 determines a scheduled imaging angle and a planned imaging focal length.

  Next, the image selection device 200 transmits signals of the planned imaging angle and the planned imaging focal length determined above (step S520). The determined one monitoring camera 12 receives the scheduled imaging focal length and imaging scheduled angle signal (step S530), and adjusts the imaging focal length and imaging angle based on the scheduled imaging focal length and imaging scheduled angle signal. Is performed (step S540). Next, the monitoring camera 12 transmits an image signal of the captured image to the image selection device 200 with the adjusted imaging focal length and imaging angle (step S550).

  The image selection device 200 receives the image signal (step S560), and calculates the position and ratio of the infrared area of the received image (step S570). If this ratio is equal to or greater than the predetermined amount, it is determined that the image is appropriate, and the process is terminated (step S580: YES). If this ratio is less than or equal to the predetermined amount, it is determined that the image is not yet appropriate, and the scheduled imaging focal length and scheduled imaging angle are determined again for the received image (step S580: YES).

  As one embodiment, the present invention can be realized by a computer program of each computer operating on the image selection apparatus 200. The storage medium storing the program can be an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system (or apparatus or device) or a propagation medium. Examples of computer readable media include semiconductor or solid state storage devices, magnetic tape, examples of removable computer readable media include semiconductor or solid state storage devices, magnetic tape, removable computer diskettes, Random access memory (RAM), read only memory (ROM), rigid magnetic disks and optical disks are included. Current examples of optical disks include compact disk-read only memory (CD-ROM), compact disk-read / write (CD-R / W) and DVD.

  As mentioned above, although embodiment of this invention was described, it only showed the specific example and does not specifically limit this invention. Further, the effects described in the embodiments of the present invention only list the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to the effects described in the embodiments of the present invention.

It is a figure which shows the surveillance camera system which concerns on embodiment of this invention. It is a figure which shows the image selection apparatus and display apparatus which concern on embodiment of this invention. It is a flowchart which shows the process which the image selection apparatus which concerns on embodiment of this invention performs. It is a figure which shows the position specific information table which concerns on embodiment of this invention. It is a figure which shows the corresponding | compatible map information table which concerns on embodiment of this invention. It is a figure which shows that the some monitoring camera which concerns on embodiment of this invention is arrange | positioned. It is a figure which shows the table by which audio | voice analysis information which concerns on embodiment of this invention was matched with the corresponding surveillance camera. It is a flowchart of the process which the image selection apparatus in the aspect which performs the speech recognition process which concerns on embodiment of this invention performs. It is a conceptual diagram which shows that the field staff is irradiating infrared rays using the portable terminal device which concerns on embodiment of this invention. It is a flowchart of the process which the image selection apparatus in the aspect which uses the infrared rays which concern on embodiment of this invention performs. It is a flowchart which shows the process with the image selection apparatus and surveillance camera for adjusting the imaging angle and imaging position which concern on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Surveillance camera system 10 Surveillance camera 10 * 12a-12d * 14 Surveillance camera 30 * 32 * 34 Base station apparatus 50a-50c Unit 200 Image selection apparatus 210 Communication part 220 Control part 230 Storage part 300 Display apparatus 400 Exchange machine 500 Portable terminal device

Claims (10)

A plurality of base station devices that receive radio waves from portable terminal devices;
An exchange connected to be able to communicate with the plurality of base station devices;
A plurality of surveillance cameras arranged in a radio wave area of the plurality of base station devices;
A display device for displaying an image based on an image signal;
An image selection device that receives an image signal captured by each of the plurality of monitoring cameras, selects an image to be displayed on the display device, and displays the image signal on the display device;
When the exchange receives a signal from the portable terminal device via the base station device, the exchange specifies position specifying information for specifying the position of the portable terminal device based on the received signal. Sent to the selected device,
The image selection device determines a monitoring camera associated with the specified position based on the position specifying information,
The said image selection apparatus selects the image which the determined monitoring camera images, and displays it on the said display apparatus, The monitoring camera selection apparatus characterized by the above-mentioned. The surveillance camera selection device according to claim 1,
A plurality of surveillance cameras are associated with one position specifying information,
The image selection device receives specified object position information from the portable terminal device, and determines one monitoring camera among the plurality of monitoring cameras based on the specified object position information. , Surveillance camera selection device. The surveillance camera selection device according to claim 2,
The specific object position information received by the image selection device from the portable terminal device is voice information from the portable terminal device, and the image selection device performs voice recognition based on the voice information. A monitoring camera selection device that determines one of the plurality of monitoring cameras based on the result of the voice recognition. The surveillance camera selection device according to claim 2,
The specific object position information received from the mobile terminal device by the image selection device is an electromagnetic wave from the mobile terminal device, and the image selection device performs the plurality of monitoring based on an image related to the electromagnetic wave. A surveillance camera selection device, wherein one surveillance camera among the cameras is determined. The surveillance camera selection device according to any one of claims 2 to 4,
The image selection device receives the object position information from the mobile terminal device, and based on the object position information, sends a signal for adjusting the imaging angle and the focal length of the determined one monitoring camera. To one surveillance camera,
The surveillance camera selection device, wherein the one surveillance camera adjusts an imaging angle and a focal length according to the reception of the signal. The surveillance camera selection device according to any one of claims 1 to 5,
When the base station device receives a signal from the mobile terminal device, the base station device transmits the radio field intensity of the received signal to the exchange,
The exchange generates position specifying information for specifying a position of the mobile terminal device based on a radio wave intensity of the received signal, and transmits the position specifying information to the image selection device. Surveillance camera selection device. The surveillance camera selection device according to any one of claims 1 to 6,
A correspondence map storage device that stores correspondence map information in which the positions of the plurality of monitoring cameras and the position specifying information are associated;
The image selection device specifies the position of the mobile terminal device based on the location specifying information, and is associated with the specified location based on the correspondence map information stored in the correspondence map storage device. Determine the surveillance camera,
The said image selection apparatus selects the image which the determined monitoring camera images, and displays it on the said display apparatus, The monitoring camera selection apparatus characterized by the above-mentioned. The surveillance camera selection device according to any one of claims 1 to 7,
The surveillance camera selection device, wherein the plurality of base station devices receive radio waves from a mobile terminal device which is a personal handy phone. A plurality of base station devices that receive radio waves from portable terminal devices;
An exchange connected to be able to communicate with the plurality of base station devices;
A plurality of surveillance cameras arranged in a radio wave area of the plurality of base station devices;
A display device for displaying an image based on an image signal;
A method executed by a system including at least an image selection device that receives an image signal captured by each of the plurality of monitoring cameras, selects an image to be displayed on the display device, and displays the image on the display device. There,
When the exchange receives a signal from the mobile terminal device via the base station device, the image specifying position specifying information for specifying the position of the mobile terminal device based on the received signal Processing to send to the selected device;
A process in which the image selection device determines a monitoring camera associated with the specified position based on the position specifying information;
A method for selecting a surveillance camera, comprising: a process in which the image selection device selects an image captured by the determined surveillance camera and displays the image on the display device. A plurality of base station devices that receive radio waves from portable terminal devices;
An exchange connected to be able to communicate with the plurality of base station devices;
A plurality of surveillance cameras arranged in a radio wave area of the plurality of base station devices;
A display device for displaying an image based on an image signal;
A method executed by a system including at least an image selection device that receives an image signal captured by each of the plurality of monitoring cameras, selects an image to be displayed on the display device, and displays the image on the display device. There,
A process of storing corresponding map information in which positions of the plurality of monitoring cameras are associated with position specifying information;
When the exchange receives a signal from the mobile terminal device via the base station device, the image specifying position specifying information for specifying the position of the mobile terminal device based on the received signal Processing to send to the selected device;
The image selecting device determines a monitoring camera associated with the specified position based on the position specifying information and the corresponding map information;
A method of selecting a surveillance camera, comprising: a process in which the image selection device selects an image captured by the determined surveillance camera and displays the image on the display device.

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