Video transmission control device, system, and program

Abstract

To provide a technology that allows a user to share a necessary video at the necessary timing while reducing a machine load.SOLUTION: A system in the disclosure comprises a drone equipped with a camera for capturing an image and an image transmission control device for controlling image transmission. The drone has means for transmitting an image captured with the camera to the image transmission control device. The image transmission control device comprises range information acquisition means which acquires information of a range designated on a map and image transmission means which transmits to an image receiving device an image captured by the drone within the designated range, on the basis of information for identifying a user.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] This invention relates to technology that supports monitoring operations. [Background technology]

[0002] To streamline surveillance operations, there is a need to share video footage captured by surveillance cameras and wearable cameras worn by security guards.

[0003] Examples of technologies related to surveillance systems using images captured by surveillance cameras and wearable cameras worn by security guards are disclosed in Patent Document 1 and Patent Document 2 below. Patent Document 1 discloses a technology that analyzes images captured by surveillance cameras to detect suspicious persons and transmits the images of those suspicious persons to the security guard's information display terminal. Patent Document 2 discloses a technology that changes the priority set for each of the multiple cameras in a store based on the location information of the store employees, and selects the image from the camera with the highest priority among the multiple cameras to display on the security guard's display device. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2011-018094 [Patent Document 2] Japanese Patent Publication No. 2007-221693 [Overview of the project] [Problems that the invention aims to solve]

[0005] In the technology described in Patent Document 1, it is necessary to analyze the images from multiple cameras when detecting a suspicious person, which may increase the load on the device that implements the function of sharing images in which a suspicious person is present. Furthermore, in the technology described in Patent Document 2, the images to be shared are selected from among multiple images based on the priority of the cameras, so there is a risk that the necessary images may not be shared at the necessary time.

[0006] This invention has been made in view of the above-mentioned problems, and its purpose is to provide a technology that allows for the sharing of necessary video at the necessary time while suppressing the load on the machine. [Means for solving the problem]

[0007] One aspect of this disclosure is that the program is A first process to obtain information about a specified area on a map, A second process involves transmitting images captured by a camera-equipped drone within the aforementioned range to a video receiving device based on information for identifying the user. Have the computer execute it.

[0008] The system in one aspect of this disclosure is A drone equipped with a camera for shooting video, The system includes a video transmission control device for controlling the transmission of the aforementioned video. Here, the drone is The system has means for transmitting the aforementioned video to the video transmission control device. Furthermore, the video transmission control device is A means for acquiring range information to obtain information about a specified area on a map, The system includes a video transmission means that transmits video footage captured by the drone within the aforementioned range to a video receiving device based on information for identifying the user.

[0009] One aspect of this disclosure is a video transmission control device, A means for acquiring range information to obtain information about a specified area on a map, A video transmission means that transmits video footage captured by a camera-equipped drone within the aforementioned range to a video receiving device based on information for identifying the user, It is equipped with. [Effects of the Invention]

[0010] According to the present invention, it is possible to share necessary images at necessary timings while suppressing machine load.

Brief Description of the Drawings

[0011] The above-described object, as well as other objects, features, and advantages, will become even more apparent from the preferred embodiments described below and the accompanying drawings.

[0012] [Figure 1] It is a diagram conceptually showing the functional configuration of the image transmission device of the first embodiment. [Figure 2] It is a diagram illustrating the hardware configuration of the image transmission device. [Figure 3] It is a flowchart showing the processing flow of the image transmission device of the first embodiment. [Figure 4] It is a diagram showing an example of the storage unit that stores the imaging position information. [Figure 5] It is a diagram for explaining the flow in which the image transmission device of the first embodiment selects an imaging device. [Figure 6] It is a diagram showing an example of the storage unit that stores the security guard position information. [Figure 7] It is a diagram conceptually showing the functional configuration of the image transmission device of the second embodiment. [Figure 8] It is a flowchart showing the processing flow of the image transmission device of the second embodiment. [Figure 9] It is a diagram for explaining the flow of the process in which the route information generation unit generates the security guard route information. [Figure 10] It is a diagram for explaining the processing flow of the image transmission device of the third embodiment. [Figure 11] It is a diagram showing an example of the notification device held by the security guard in the fourth embodiment.

Embodiments for Carrying Out the Invention

[0013] The video transmission device according to the present invention is a device that transmits video corresponding to a designated location within a monitored area to multiple video receiving devices (video sharing devices) of multiple people, thereby allowing the multiple people to share the video. In the following embodiments, the video transmission device according to the present invention, the video transmission method executed by a computer acting as the video transmission device, and the program that causes the computer to operate as the video transmission device according to the present invention will be described with reference to the drawings. In all drawings, similar components are denoted by the same reference numerals, and explanations are omitted as appropriate. Also, in each block diagram except for the hardware configuration diagram, each block represents a functional unit configuration, not a hardware unit configuration.

[0014] [First Embodiment] [Functional Configuration] Figure 1 is a conceptual diagram showing the functional configuration of the video transmission device 10 of the first embodiment. As shown in Figure 1, the video transmission device 10 of this embodiment includes a designated location information acquisition unit 110 and a video transmission control unit 120.

[0015] The designated location information acquisition unit 110 acquires designated location information indicating a specified location within the monitored area, which includes each imaging area corresponding to each of the multiple imaging devices. The monitored area is an area determined to be monitored in a security plan, such as crowd control. In addition to imaging devices such as surveillance cameras already installed in the monitored area, temporary imaging devices (for example, wearable cameras worn by security guards or cameras mounted on security equipment such as drones) may also be placed in the monitored area. Multiple different imaging devices capture images of multiple areas within the monitored area, which are used for monitoring operations. Monitoring operations in the monitored area are mainly carried out in accordance with instructions from the monitoring center that oversees the monitoring operations. For example, a monitor at the monitoring center receives a report from a security guard performing monitoring operations on-site that an unexpected situation has occurred at a certain location. The monitor at the monitoring center performs an input operation to specify the location indicated in this report to the video transmission device 10 or another device that is communicably connected to the video transmission device 10. The designated location information acquisition unit 110 of the video transmission device 10 acquires designated location information generated in response to input operations by a monitor at the monitoring center. Alternatively, the designated location information acquisition unit 110 may acquire designated location information generated based on locations that should be monitored intensively or locations where risks (crimes or accidents) are likely to occur, and stored in a predetermined storage unit. However, the method by which the designated location information acquisition unit 110 acquires designated location information is not limited to these examples.

[0016] The video transmission control unit 120 selects at least one imaging device using imaging position information indicating the position or imaging range of each of the multiple imaging devices, and designated position information. In other words, the video transmission control unit 120 identifies and selects an imaging device that captures video related to the position indicated by the designated position information, based on the position information (imaging position information) of that imaging device. Furthermore, the video transmission control unit 120 transmits the video captured by the selected imaging device to a video sharing device, which is a device that should share the video. The video sharing device is selected from, for example, a video receiving device located in the aforementioned monitoring center (a device that receives video transmitted from the video transmission control unit 120 and displays it on a display device), and a video receiving device held by a security guard.

[0017] [Mechanism of Action / Effect] In this embodiment, a location of high urgency or importance for monitoring is designated, and an imaging device is selected to capture video related to that location, i.e., video to be shared. The video from the selected imaging device is then transmitted to a video sharing device, which is the device to which the video should be shared. As a result, according to this embodiment, video that has a high need to be shared can be transmitted to the video sharing device at the necessary time. Furthermore, since only the video from the selected imaging device is shared, the amount of data of the video to be shared can be reduced, thereby reducing the machine load.

[0018] Furthermore, according to this embodiment, video footage of locations of high urgency or importance is shared among the personnel performing surveillance duties. When the video footage from the selected imaging device is shared on the video sharing device at the surveillance center, the surveillance personnel can review the shared video and give appropriate instructions to the security guards on site. Also, when the video footage from the selected imaging device is shared on a video sharing device held by the security guards on site, the security guards can review the shared video, understand the situation even if they are not present, and respond quickly upon arrival at the site.

[0019] The video transmission device 10 of this embodiment will be described in more detail below.

[0020] [Hardware configuration] Each functional component of the video transmission device 10 may be implemented by hardware (e.g., hardwired electronic circuits) or by a combination of hardware and software (e.g., a combination of electronic circuits and programs that control them). The following will further explain the case in which each functional component of the video transmission device 10 is implemented by a combination of hardware and software.

[0021] Figure 2 illustrates the hardware configuration of the video transmission device 10. The video transmission device 10 includes a bus 101, a processor 102, memory 103, storage 104, an input / output interface 105, and a communication interface 106. The bus 101 is a data transmission path for sending and receiving data. The processor 102, memory 103, storage 104, input / output interface 105, and communication interface 106 send and receive data to each other via the bus 101. However, the method of connecting the processor 102 and the other components is not limited to bus connection. The processor 102 is a processing unit such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit). The memory 103 is memory such as RAM (Random Access Memory) or ROM (Read Only Memory). The storage 104 is a storage device such as an HDD (Hard Disk Drive), SSD (Solid State Drive), or memory card. The storage 104 may also be memory such as RAM or ROM.

[0022] The input / output interface 105 is an interface for connecting the video transmission device 10 with input / output devices. For example, input devices such as a mouse and keyboard, display devices such as a CRT (Cathode Ray Tube) display and an LCD (Liquid Crystal Display), and touch panels that integrate an input device and a display device can be connected to the input / output interface 105. However, these devices do not necessarily have to be connected.

[0023] The communication interface 106 is an interface that connects the video transmission device 10 to various networks such as the Internet, and enables it to communicate with external devices via the network. For example, the video transmission device 10 is connected via the network to the imaging device 20, the video receiving device 310 of the monitoring center 30, or the video receiving device 410 of the security guard 40.

[0024] Here, the imaging device 20 may be a fixed camera or a mobile camera. A fixed camera is, for example, a camera fixed in a predetermined position, such as a surveillance camera. A mobile camera is a camera mounted on a vehicle or security equipment (such as a drone), or a wearable camera worn by a security guard or police officer. A mobile camera has a function to acquire its own location information (for example, a function to acquire GPS (Global Positioning System) information or information of the base station to which it belongs via wireless communication). A mobile camera acquires its own location information at predetermined intervals, for example, and uses that location information to update a memory unit (e.g., Figure 4 described later) that stores the location information of each imaging device. As a result, the video transmission control unit 120 can determine the imaging location information of the mobile camera using the information in the memory unit, even if the person wearing the mobile camera or the equipment equipped with the mobile camera moves to another location. Even in the case of a mobile camera, for example, if a security guard who is stationed in a predetermined location and does not move from that location (a fixed security guard) holds the mobile camera, the mobile camera does not need to have a function to acquire location information. This is because the position of the mobile camera does not change significantly. In this case, the location information of the fixed security guard's position is stored as the image capture location information.

[0025] The monitoring center 30 is a location that oversees the monitoring operations performed in the monitored area. The video receiving device 310 of the monitoring center 30 can receive video transmitted from the video transmission control unit 120 of the video transmission device 10 and display it on a display device (not shown). The monitoring staff at the monitoring center 30 check the video displayed on the display device and give instructions to the security guards 40 who are performing monitoring operations on site. The video receiving device 310 is installed in the monitoring center. At least one of the security guards 40 performing monitoring operations on site may hold a video receiving device 410 that receives video from the video transmission device 10. In this embodiment, either the video receiving device 310 or the video receiving device 410, or both, play the role of the "video sharing device" in the present invention.

[0026] The storage 104 stores program modules that realize the functions of each of the processing units of the video transmission device 10. The processor 102 realizes the functions of each processing unit corresponding to each program module by executing these program modules. When the processor 102 executes the above program modules, it may read these program modules into memory 103 before executing them, or it may execute them without reading them into memory 103.

[0027] Note that the hardware configuration of the video transmission device 10 is not limited to the configuration shown in Figure 2. For example, each program module may be stored in memory 103. In this case, the video transmission device 10 does not need to have storage 104.

[0028] [Example of operation] The processing flow performed by the video transmission device 10 of this embodiment will be explained using Figure 3. Figure 3 is a flowchart showing the processing flow of the video transmission device 10 of the first embodiment.

[0029] First, the designated location information acquisition unit 110 acquires designated location information (S102). Then, the video transmission control unit 120 uses the designated location information acquired in S102 to select the imaging device 20 (S104). Specifically, the process described in the example below is performed.

[0030] <First specific example> The designated location information acquisition unit 110 acquires designated location information from the monitoring center 30. Specifically, a monitor at the monitoring center 30 inputs designated location information on a map displayed on the display device of the monitoring center 30. The monitor at the monitoring center 30 specifies the location on the map of the area to be monitored using a mouse or touch panel, for example, based on reports from on-site security guards 40 or a predetermined security plan. Then, coordinate information corresponding to the specified location is generated. The designated location information acquisition unit 110 acquires the coordinate information of the specified location as designated location information.

[0031] The video transmission control unit 120 uses the coordinate information acquired by the designated position information acquisition unit 110 and the imaging position information of each imaging device to select the imaging device 20 that is the source of the shared video. The imaging position information of each imaging device is stored in a predetermined storage unit in a format such as that shown in Figure 4.

[0032] Figure 4 shows an example of a storage unit that stores imaging position information. In the example in Figure 4, imaging position information is stored along with identification information for each imaging device 20. The imaging position information includes information indicating the location where each imaging device 20 is located, or information indicating the imaging range of each imaging device 20. As illustrated in Figure 4, address information of the imaging device 20 (e.g., IP (Internet Protocol) address) may also be stored. This address information is used when the video transmission control unit 120 acquires video from the imaging device 20. The information shown in Figure 4 may be stored in the storage 104 of the video transmission device 10, or in the storage (not shown) of another device that is communicatively connected to the video transmission device 10.

[0033] The video transmission control unit 120 converts the designated location information (coordinate information) acquired by the designated location information acquisition unit 110 using a function that converts the location information of the coordinate system on the map to the location information of the coordinate system to which the imaging location information belongs. This allows the video transmission control unit 120 to compare the designated location information acquired by the designated location information acquisition unit 110 with the imaging location information of the storage unit. Based on the comparison result between the location information of each imaging device 20 and the imaging location information of each imaging device 20, the video transmission control unit 120 selects the imaging device 20 that is the source of the shared video.

[0034] The above process will be explained in more detail using Figure 5. Figure 5 is a diagram illustrating the flow of the video transmission device 10 in the first embodiment selecting an imaging device 20. Figure 5 illustrates a case where a monitor at the monitoring center 30 selects point P on a map displayed on the display device based on a report received from a security guard at the site. In this case, the designated location information acquisition unit 110 acquires the coordinate information of the designated point P as designated location information. The video transmission control unit 120 converts the coordinates of point P acquired by the designated location information acquisition unit 110 using a function that converts the location information of the coordinate system on the map to the location information of the coordinate system to which the imaging location information belongs. Then, the video transmission control unit 120 selects an imaging device 20 that is within a predetermined range with respect to point P as the imaging device 20 that generates the shared video. In the example in Figure 5, the video transmission control unit 120 defines a circular area A with a predetermined radius centered on point P as the predetermined range. The video transmission control unit 120 then identifies the imaging device 20 whose position information, indicated by the imaging position information, overlaps with at least a portion of the position information of the defined area A, as the source imaging device 20 for generating the shared video. In the example in Figure 5, the video transmission control unit 120 identifies three imaging devices 20A, 20B, and 20C as the source imaging devices 20 for generating the shared video. Imaging devices 20A and 20C are fixed cameras such as so-called surveillance cameras, while imaging device 20B is a mobile camera such as a wearable camera worn by a security guard.

[0035] However, not limited to the example in Figure 5, the monitoring center 30 may specify a range of locations for selecting the imaging device 20, rather than a single point on the map, and the coordinate information (specified location information) of that range may be transmitted to the specified location information acquisition unit 110. In this case, the video transmission control unit 120 uses the specified location information of the range specified by the monitoring center 30, instead of a predetermined area A, to select the imaging device 20 that is the source of the shared video. The specified location information may also be text data such as an address or postal code. In this case, the specified location information acquisition unit 110 acquires location information of the area indicated by the received text data. Then, the video transmission control unit 120 selects the imaging device 20 that is the source of the shared video based on the location information acquired from the text data and the imaging location information of each imaging device 20.

[0036] <Second specific example> Location information of predetermined locations (for example, locations with high security monitoring priority) is stored as designated location information in a designated storage unit, and the designated location information acquisition unit 110 may read the designated location information from that storage unit. In this case as well, similar to the first specific example, the imaging device 20 that is the source of the shared video is identified based on the designated location information and the imaging location information of each imaging device 20.

[0037] <Third specific example> The designated location information acquisition unit 110 can also identify locations where risks are likely to occur based on information predicting risks (accidents and crimes) within the monitored area (risk prediction information), and acquire the location information of those locations as designated location information. Risk prediction information is generated, for example, from statistical data such as the date and time of past accidents and crimes in the monitored area. Risk prediction information may also be generated by analyzing the video from each imaging device 20, such as the degree of congestion of people and vehicles at the location in the video, and the flow rate and velocity of people and vehicles at the location in the video. The designated location information acquisition unit 110 identifies locations with a certain level of risk or higher from the risk prediction information and acquires the location information of those locations as designated location information. The video transmission control unit 120, similar to the first specific example, identifies the imaging device 20 that is the source of the shared video based on the designated location information acquired based on the risk prediction information and the imaging location information of each imaging device 20.

[0038] Returning to the flowchart in Figure 3, the video transmission control unit 120 acquires the video from the imaging device 20 selected in S104 (S106). The video transmission control unit 120 communicates with the imaging device 20 selected in S104 using address information, for example, as shown in Figure 4, and acquires the video to be shared from the imaging device 20. However, the designated location information acquisition unit 110 can also acquire the video to be shared from a storage unit that collects and manages the video from each imaging device 20. This storage unit may be provided in the video transmission device 10, or it may be provided in another device (for example, a device provided in the monitoring center 30) that is communicably connected to the video transmission device 10. In the following, we will explain using the case where a device provided in the monitoring center 30 collects and manages the video from each imaging device 20 as an example. In this case, when the video transmission control unit 120 selects an imaging device 20 in S104, it acquires the identification information of the selected imaging device 20. The video transmission control unit 120 then searches the storage unit using the acquired identification information as a key and acquires the video from the imaging device 20 selected in S104. The video acquired by the video transmission control unit 120 may be video acquired in real time from the imaging device 20, or it may be a still image from a past point in time or a video from a past period.

[0039] Next, the video transmission control unit 120 transmits the video identified in S106 to the video sharing device (S108). Here, it is assumed that information indicating that the video receiving device 310 in the monitoring center 30 is a video sharing device is pre-configured in the video transmission control unit 120. In this case, the video transmission control unit 120 selects the video receiving device 310 located in the monitoring center 30 as the video sharing device and transmits the video acquired in S106.

[0040] Furthermore, if a security guard 40 is holding a video receiving device 410, the video transmission control unit 120 may select that video receiving device 410 as a video sharing device other than the video receiving device 310 of the monitoring center 30. In this case, the video transmission control unit 120 operates as follows: First, it uses the security guard location information indicating the location of the security guard 40 holding the video receiving device 410 and the designated location information acquired in S102 to select at least one security guard 40 from among the security guards 40 deployed in the monitored area. Then, the video transmission control unit 120 selects the video receiving device 410 held by the selected security guard 40 as a video sharing device.

[0041] Specifically, the video transmission control unit 120 calculates the distance between the location indicated by the designated location information acquired in S102 and the location indicated by the security guard's location information of the security guard 40, and identifies security guard location information for which the calculated distance is less than or equal to a predetermined threshold. The predetermined threshold is pre-stored in memory 103 or storage 104, and the video transmission control unit 120 reads and uses the stored threshold. The security guard location information is stored in the storage unit in a format such as shown in Figure 6.

[0042] Figure 6 shows an example of a storage unit that stores security guard location information. The information of security guards as shown in Figure 6 may be stored in the storage 104 of the video transmission device 10, or in the storage (not shown) of another device that is communicatively connected to the video transmission device 10. The storage unit illustrated in Figure 6 stores security guard location information and address information (e.g., IP address) of the video receiving device 410, linked to the identification information of each security guard 40.

[0043] The video transmission control unit 120 can determine whether each security guard 40 is holding a video receiving device 410 by, for example, checking whether the address information of the video receiving device 410 is set. In the example in Figure 6, it can be seen that security guards 40 identified by ID001 and ID002 are holding video receiving devices 410, while security guard 40 identified by ID003 is not holding a video receiving device 410. In this case, the video transmission control unit 120 acquires the security guard location information of security guards 40 identified by ID001 and ID002. The video transmission control unit 120 then calculates the distance between each of the acquired security guard location information and the location indicated by the designated location information acquired in S102. Preferably, the video transmission control unit 120 calculates the temporal distance between the location indicated by the designated location information acquired in S102 and the location indicated by the security guard location information of security guard 40. The video transmission control unit 120, for example, uses map information corresponding to the area to be monitored to identify the route from the location indicated by the security guard's location information to the location indicated by the designated location information, and calculates the estimated time required (temporal distance). The estimated time required can be achieved using the functions of a so-called navigation device. Here, the video transmission control unit 120 may also estimate the degree of congestion along the route from the video analysis results of the route connecting the two points, and incorporate that degree of congestion into the parameters of the formula for calculating the temporal distance.

[0044] The video transmission control unit 120 then compares the calculated distance with a predetermined threshold and identifies security guard location information for which the distance is less than or equal to the predetermined threshold. The video transmission control unit 120 then selects the security guard 40 corresponding to the identified security guard location information as the target for sharing the video. More specifically, the video transmission control unit 120 identifies the target for sharing the video by obtaining the address information of the video receiving device 410 held by the security guard 40 corresponding to the identified security guard location information. The video receiving device 410 then transmits the video acquired in S106 to the video receiving device 410 identified here.

[0045] In this example, video footage from an imaging device located near the location indicated by the designated location information is shared with the monitoring center 30. Here, the designated location information is, for example, the location where an emergency has occurred, or a location that should be monitored with priority, as reported by a security guard 40 performing monitoring duties on-site. In other words, the shared video footage is considered to be of high urgency or importance in the monitoring operations. This allows the monitoring center 30 to quickly identify video footage that needs to be understood immediately or video footage that should be monitored with priority, and to give appropriate instructions to the security guard 40 on-site. Furthermore, the security guard 40 heading to the location indicated by the designated location information can also share this video footage. This allows the security guard 40 to understand what is happening at the location where the unexpected situation has occurred before arriving on-site, and to take a swift response.

[0046] [Variation] In the above example, the video transmission device 10 and the imaging device 20 exist as separate devices, but each function of the video transmission device 10 (the designated position information acquisition unit 110 and the video transmission control unit 120) may be incorporated into the imaging device 20 (for example, a surveillance camera). In this case, each imaging device in Figure 2 is configured as a so-called intelligent camera, equipped with each function of the video transmission device 10. Also, in this case, the video transmission device 10 does not necessarily have to be connected in Figure 2.

[0047] The designated location information acquisition unit 110 acquires designated location information indicating a specified location within the monitoring area. As described above, the designated location information acquisition unit 110 can acquire designated location information generated in response to input operations by monitoring personnel at the monitoring center. In addition, the designated location information acquisition unit 110 can acquire designated location information that is generated based on locations that should be monitored intensively or locations where risks (crimes or accidents) are likely to occur, and which is stored in the storage unit of the imaging device 20.

[0048] Furthermore, the video transmission control unit 120 transmits the video captured by the imaging means to a video sharing device, which is a device that should share the video, when there is a predetermined relationship between the imaging position information indicating the position of the surveillance camera or the imaging range of the surveillance camera and the designated position information acquired by the designated position information acquisition unit 110. Here, "predetermined relationship" means that the distance that can be calculated from the position indicated by the designated position information and the position or range indicated by the imaging position information is less than a predetermined threshold (i.e., the distance between the two positions that can be identified by the designated position information and the imaging position information is less than a predetermined distance). The video sharing device is selected from among video receiving devices located in the monitoring center and video receiving devices held by security guards. In addition, the video transmission control unit 120 can identify a video sharing terminal by referring to the storage area after acquiring identification information of the video sharing terminal (for example, the destination address of the video sharing terminal) from a terminal in the monitoring center or the like and storing it in the storage area.

[0049] The modifications described above can also be used to achieve the effects mentioned above.

[0050] [Second Embodiment] This embodiment has the same functional and hardware configuration as the first embodiment, except for the following points.

[0051] [Functional configuration and hardware configuration] Figure 7 is a conceptual diagram showing the functional configuration of the video transmission device 10 of the second embodiment. As shown in Figure 7, the video transmission device 10 of this embodiment further includes a route information generation unit 130 in addition to the configuration of the first embodiment. The video transmission device 10 of this embodiment further stores a program in the storage 104 that realizes the functions of the route information generation unit 130, which will be described later. The processor 102 further realizes the functions of the route information generation unit 130 by executing this program module.

[0052] As described in the first embodiment, the video transmission control unit 120 may select at least one security guard 40 from among the security guards 40 deployed in the monitored area and identify the video receiving device 410 of that security guard 40 as a video sharing device. In this embodiment, the route information generation unit 130 generates security guard route information indicating the route that the selected security guard 40 should take, based on the security guard location information of the security guard 40 selected by the video transmission control unit 120 and the designated location information acquired by the designated location information acquisition unit 110. Furthermore, the video transmission control unit 120 in this embodiment uses the security guard route information generated by the route information generation unit 130 to further select an imaging device 20 whose imaging range includes the route that the security guard selected as the target for video sharing should take.

[0053] Furthermore, the video transmission control unit 120 may link the video from the additionally selected imaging device 20, which is linked to the security guard route information generated by the route information generation unit 130, and transmit it to the video sharing device. The video sharing device is, for example, the video receiving device 310 of the monitoring center 30, or the video receiving device 410 of the security guard 40.

[0054] [Example of operation] The processing flow performed by the video transmission device 10 of this embodiment will be explained using Figure 8. Figure 8 is a flowchart showing the processing flow of the video transmission device 10 of the second embodiment. Each of the processes described below is performed immediately following S106 in Figure 3, which was described in the first embodiment.

[0055] First, the video transmission control unit 120 acquires the location information of each security guard 40 (S202). The video transmission control unit 120 can acquire the location information of each security guard 40 by searching a memory unit, for example, as shown in Figure 6.

[0056] Next, the video transmission control unit 120 calculates the distance from the location indicated by the security guard location information acquired in S202 to the location indicated by the designated location information (S204). Then, the video transmission control unit 120 identifies a security guard 40 that is at a distance of less than or equal to a predetermined threshold from the location indicated by the designated location information, and selects the video receiving device 410 held by that security guard 40 as the video sharing device (S206). This is as described in the first embodiment.

[0057] Next, the route information generation unit 130 generates information (security guard route information) indicating the route that the security guard 40, who is holding the video receiving device 410 selected as the video sharing device, should take (S208). First, the route information generation unit 130 uses the security guard location information, which can be obtained from the storage unit as shown in Figure 6, and the designated location information obtained in S102, to identify two points corresponding to the two pieces of location information. Then, the route information generation unit 130 generates security guard route information indicating at least one route connecting these two points, for example, using navigation technology that calculates a route between two points on a map. Then, the video transmission control unit 120 further selects additional imaging devices 20, which are the sources of the video to be shared, based on the security guard route information generated by the route information generation unit 130 (S210). In other words, the video transmission control unit 120 further selects imaging devices whose imaging range includes the route that the security guard should take. Here, imaging devices are additionally selected for each route.

[0058] This specific process will be described with reference to FIG. 9. FIG. 9 is a diagram for explaining the process of the route information generation unit 130 generating security guard route information. In FIG. 9, it is assumed that the designated position information indicates the position of point P, and as the imaging device 20 for sharing the video, the imaging device 20I existing in the area indicated by area A is selected. Also, in FIG. 9, the security guards denoted by reference numerals 20D and 20M are security guards of the type that do not move from their posts (fixed security guards) and are assumed to be holding the imaging device 20. Further, the security guards denoted by reference numerals 40A and 40B are assumed to be security guards of the type that patrol a so-called monitored area (patrolling security guards).

[0059] The route information generation unit 130 generates security guard route information for each security guard based on the coordinates of point P (designated position information) and the security guard position information of each of the security guards 40A and 40B. In FIG. 9, the route information generation unit 130 generates three routes (R A1 、R A2 、and R A3 ) as the routes that the security guard 40A should move along. Also, the route information generation unit 130 generates two routes (R B1 and R B2 ) as the routes that the security guard 40B should move along.

[0060] The video transmission control unit 120 uses the security guard route information generated in S208 and the imaging position information of each imaging device 20 to identify the imaging device 20 corresponding to each route (that is, including at least a part of each route in the imaging area). In the example of FIG. 9, the video transmission control unit 120 identifies four imaging devices (20B, 20A, 20D, 20G) as the imaging device 20 corresponding to the route R A1 . Also, the video transmission control unit 120 identifies four imaging devices (20C, 20F, 20E, 20G) as the imaging device 20 corresponding to the route R A2 . Also, the video transmission control unit 120 identifies four imaging devices (20C, 20F, 20K, 20J) as the imaging device 20 corresponding to the route R A3 . The video of the imaging devices identified here is shared by the monitor in the monitoring center 30 or the security guard 40A. Similarly, the video transmission control unit 120 identifies the imaging device 20 corresponding to the route R B1Two imaging devices (20L, 20H) are identified as the corresponding imaging device 20. The video transmission control unit 120 also identifies the path R B2 Two imaging devices (20M, 20N) are identified as the corresponding imaging devices 20. The imaging devices 20 identified here are additionally selected as sources for generating the shared video. The video transmission control unit 120 does not have to additionally select all imaging devices along the path. The video transmission control unit 120 may specify imaging devices at predetermined intervals between the location of each security guard 40 and the specified location. The interval for selecting imaging devices is determined, for example, by the network communication status.

[0061] Returning to Figure 8, the video transmission control unit 120 acquires the video from the additionally selected imaging device 20 in S210 (S212). This is the same as in the first embodiment. Next, the video transmission control unit 120 transmits the acquired video to the video sharing device (S214).

[0062] [Mechanism of Action / Effect] In this embodiment, an imaging device 20 whose imaging area includes at least a portion of the path the security guard should take is additionally selected as the source of the shared video, and the video from the additionally selected imaging device 20 is transmitted to the video sharing device (the video receiving device 310 of the monitoring center 30 and the video receiving device 310 of the security guard 40). This additionally transmitted video shows the situation of at least a portion of the path the security guard should take. Therefore, by checking the additionally transmitted video, the monitoring staff of the monitoring center 30 and the security guard 40 can appropriately determine which path they should take.

[0063] Furthermore, in S214, the video transmission control unit 120 may transmit the security guard route information generated in S208. In this case, the video transmission control unit 120 associates each route indicated by the security guard route information with the video from the imaging device 20 that was additionally selected for each route in S212 and transmits this to the video sharing device. This allows the monitors at the monitoring center 30 and the security guards 40 on site to understand the video for each route, making it easier to organize the information when deciding which route to take.

[0064] In this embodiment, as shown in Figure 9, if security guard route information is generated indicating multiple routes for security guard 40 to take, the monitoring center 30 may decide which route security guard 40 should take. In this case, the route information generation unit 130 transmits the security guard route information indicating multiple routes for security guard 40 to take to a device provided in the monitoring center 30. The monitoring center 30 selects the route the security guard should take from among the multiple routes indicated by the security guard route information. Here, route-specific video footage, as described above, may be associated with the security guard route information transmitted by the route information generation unit 130. In this case, the monitoring center 30 can check the route-specific video footage and select the route the security guard should take. The video transmission control unit 120 receives the route information selected here and selects the imaging device 20 corresponding to the received route. The video transmission control unit 120 then acquires the video footage from the selected imaging device 20. The video transmission control unit 120 then transmits the acquired video to the video receiving device held by the security guard identified in S206. This allows the security guard 40, who is holding the video receiving device selected as the video sharing device, to share video of the route instructed by the monitoring center 30 and understand the status of the route to the destination.

[0065] [Third Embodiment] This embodiment has the same functional and hardware configuration as the first and second embodiments, except for the following points. The following description will be based on the configuration of the first embodiment, but the video transmission device 10 of this embodiment may further include the configuration of the second embodiment.

[0066] [Functional configuration and hardware configuration] The video transmission device 10 of this embodiment has a configuration similar to the functional configuration shown in Figure 1. In this embodiment, a route for guiding the crowd is predetermined in the area to be monitored. The video transmission control unit 120 of this embodiment further selects an imaging device 20 whose imaging range includes an area located behind the position indicated by the position information acquired by the designated position information acquisition unit 110 on the aforementioned route. In addition (or instead), the video transmission control unit 120 of this embodiment further selects an imaging device 20 whose imaging range includes an area located in front of the position indicated by the position information acquired by the designated position information acquisition unit 110 on the aforementioned route.

[0067] [Example of operation] The processing flow of the video transmission device 10 of this embodiment will be explained using Figure 10. Figure 10 is a diagram illustrating the processing flow of the video transmission device 10 of the third embodiment. In Figure 10, point P is the position indicated by the specified position information. Also in Figure 10, line L is a predetermined movement path, such as in a security plan. Information on the movement path L is stored in memory 103 or storage 104 in advance. In Figure 10, A1, A2, and A3 indicate the imaging range of imaging device 20A, imaging device 20B, and imaging device 20C, respectively. Information indicating the imaging range of each imaging device 20 is stored in a storage unit, for example, as shown in Figure 4.

[0068] The video transmission control unit 120 obtains information indicating the imaging range of imaging devices 20A, 20B, and 20C (imaging position information) by referring to a storage unit as shown in Figure 4. The video transmission control unit 120 may also obtain information on the installation positions of each imaging device 20A, 20B, and 20C as information indicating the imaging range. The video transmission control unit 120 then selects at least imaging device 20B whose imaging range includes an area in front of the position (point P) indicated by the specified position information on the movement path L (i.e., in the direction of extension of the movement path L). The video transmission control unit 120 may further select imaging device 20C whose imaging range includes an area behind the movement path L, depending on conditions such as a predetermined distance or a predetermined number from point P. In the example in Figure 10, the video transmission control unit 120 may also select imaging device 20C instead of imaging device 20B. Furthermore, the video transmission control unit 120 further selects an imaging device 20A whose imaging range includes an area behind the position (point P) indicated by the specified position information on the movement path L (i.e., in the opposite direction to the extension of the movement path L). Here, the video transmission control unit 120 selects an imaging device for at least one of the forward or backward directions on the movement path L.

[0069] <Effects and Actions> In this embodiment, an imaging device 20 is selected whose imaging range includes at least one of the areas in front of or behind a predetermined movement path, and the image from the imaging device 20 is shared. Here, it is considered that the areas before and after the location where an unexpected event occurs are also highly likely to be affected by the unexpected event. According to the configuration of this embodiment, the monitoring personnel at the monitoring center 30 or the on-site security guards 40 can share images of locations that are highly likely to be affected if an unexpected event occurs. Then, the monitoring personnel at the monitoring center 30 or the on-site security guards 40 can appropriately judge the situation around the location where the unexpected event occurred.

[0070] For example, in large-scale events, the movement routes for event participants are sometimes predetermined. In situations where a crowd moves along such predetermined routes, if an unexpected event occurs, the event may prevent event participants from moving as planned, potentially causing congestion or delays behind the location where the event occurred. This congestion or delay could then lead to secondary disasters behind the location where the unexpected event occurred. Therefore, although not particularly limited, when choosing between an imaging device 20 that includes an area located in front of the movement route or an imaging device 20 that includes an area located behind the movement route, it is preferable to choose the latter. This allows monitoring personnel at the monitoring center 30 and on-site security guards 40 to share images of areas where secondary disasters are likely to occur in the event of an unexpected event, enabling them to act appropriately to prevent secondary disasters or minimize damage.

[0071] [Fourth Embodiment] In the present invention, it is conceivable that not only images from surveillance cameras but also images of security guards stationed in the monitored area may be shared. The video transmission device 10 of this embodiment further includes a configuration to improve the quality of the images when images from an imaging device held by a security guard are shared. This embodiment has the same functional and hardware configuration as the first to third embodiments, except for the following points. The following description will be based on the configuration of the first embodiment, but the video transmission device 10 of this embodiment may further include the configurations of the second and third embodiments.

[0072] [Functional configuration and hardware configuration] The video transmission device 10 of this embodiment has a configuration similar to the functional configuration shown in Figure 1. In this embodiment, at least one security guard 40 holds the imaging device 20. When the video transmission control unit 120 of this embodiment selects the imaging device 20 held by the security guard 40 as the source of the shared video, it outputs notification information that the video is being shared to the notification device held by the security guard 40.

[0073] The notification device includes a notification function (e.g., Figure 11) that informs the security guard 40 that video is being shared. Figure 11 shows an example of a notification device held by a security guard in the fourth embodiment. In Figure 11, an example is shown in which a head-mounted display 50 worn by the security guard 40 is used as the notification device. In Figure 11, an example is shown in which the security guard 40 is wearing an imaging device 20 (wearable camera) on his right shoulder. When the video transmission device 10 shares the video from the imaging device 20 in Figure 11, the video transmission control unit 120 outputs notification information to the notification device (head-mounted display 50) of the security guard 40 who is holding the imaging device 20. When the head-mounted display 50 receives this notification information, it displays notification information as shown by reference numeral 52 in Figure 11. The security guard 40 in Figure 11 can realize that the video from the imaging device 20 he is holding is currently being shared by checking the message such as "Video Sharing" displayed on the head-mounted display 50.

[0074] However, the notification device is not limited to the example in Figure 11; it can be implemented with any device. For example, the notification device may be an earphone worn by the security guard 40, or a portable device (such as a tablet or smartphone) held by the security guard 40. The notification function of the notification device is also arbitrary; for example, the video transmission control unit 120 may output information that video is being shared via audio from the audio output unit of the notification device. Alternatively, the security guard 40's video receiving device 410 may also function as a notification device.

[0075] <Effects and Actions> As described above, according to this embodiment, when the video from the imaging device 20 held by a security guard 40 is being shared, notification information is output from the video transmission control unit 120 to the notification device worn by the security guard 40. This notification information indicates that the video is currently being shared. This notification information allows the security guard 40 to realize that the video from the imaging device 20 they are holding is currently being shared. Once the security guard 40 realizes that the video from the imaging device 20 they are holding is currently being shared, they will likely move more carefully to capture the video necessary for security, and as a result, higher quality video can be obtained. By sharing this video among multiple people, the situation can be grasped more accurately.

[0076] Here, the video transmission control unit 120 may also display the currently shared video on the security guard 40's notification device. In this way, if the security guard 40 finds any problems with the video (such as a focus error, a shift in the imaging range or direction), he can check the shared video and correct the problem.

[0077] The embodiments of the present invention have been described above with reference to the drawings, but these are merely examples of the present invention, and combinations of the above embodiments or various other configurations can also be adopted.

[0078] Examples of reference formats are provided below. 1. A designated location information acquisition means that acquires designated location information indicating a specified location within a monitored area that includes each imaging area corresponding to each of multiple imaging devices, A video transmission control means that uses imaging position information indicating the position or imaging range of each of the plurality of imaging devices and the designated position information to select at least one imaging device from the plurality of imaging devices, and transmits the video captured by the selected imaging device to a video sharing device which is a device that should share the video, A video transmission device equipped with the following features. 2. The aforementioned video transmission control means is Using the security guard location information indicating the location of the security guard holding the video receiving device and the designated location information, at least one security guard is selected, and the video receiving device held by the selected security guard is selected as the video sharing device. The video transmission device described in 1. 3. The aforementioned video transmission control means is The distance between the location indicated by the designated location information and the location indicated by the security guard location information is calculated, and a security guard corresponding to the security guard location information for which the calculated distance is less than or equal to a predetermined threshold is selected. The video transmission device described in 2. 4. The aforementioned video transmission control means is The temporal distance between the location indicated by the designated location information and the location indicated by the security guard location information is calculated. The video transmission device described in 3. 5. The system further comprises route information generation means for generating security guard route information indicating the route the selected security guard should take, based on the security guard location information of the selected security guard and the designated location information. The aforementioned video transmission control means is Using the security guard route information, an additional imaging device is selected that includes the route the selected security guard should take within its imaging range. A video transmission device as described in any one of items 2 through 4. 6. The aforementioned video transmission control means is The video from the imaging device selected using the security guard route information is transmitted to the video sharing device in association with the security guard route information. The video transmission device described in 5. 7. The aforementioned route information generation means is The security guard route information, which indicates multiple routes that the security guard should take, is transmitted to the monitoring center. The aforementioned video transmission control means is Information on the route selected from the aforementioned multiple routes is received from the monitoring center. Using the received route information, the video from the selected imaging device is transmitted to the video receiving device held by the selected security guard. The video transmission device described in 5. 8. The aforementioned video transmission control means is Select the video receiving device located in the monitoring center as the video sharing device. The video transmission device described in 1. 9. In the aforementioned monitored area, the routes for guiding the crowd are predetermined. The video transmission control means selects the imaging device whose imaging range includes an area located behind the position indicated by the specified position information on the movement path. A video transmission device as described in any one of items 1 through 8. 10. In the aforementioned monitored area, the routes for guiding the crowd are predetermined. The video transmission control means selects the imaging device whose imaging range includes an area located forward on the movement path from the position indicated by the designated position information. A video transmission device as described in any one of items 1 through 8. 11. At least one of the imaging devices is held by at least one security guard, The aforementioned video transmission control means is If the imaging device held by at least one security guard is selected, notification information indicating that the video is being shared will be output to the notification device held by that security guard. A video transmission device as described in any one of items 1 through 10. 12. Computers The system acquires designated location information that indicates a specified position within the monitored area, which includes each imaging area corresponding to each of the multiple imaging devices. Using imaging position information indicating the position or imaging range of each of the plurality of imaging devices and the designated position information, at least one imaging device is selected from the plurality of imaging devices, and the image captured by the selected imaging device is transmitted to a video sharing device which is a device that should share the image. A video transmission method that includes the following. 13. The aforementioned computer, Using the security guard location information indicating the location of the security guard holding the video receiving device and the designated location information, at least one security guard is selected, and the video receiving device held by the selected security guard is selected as the video sharing device. The video transmission method described in 12., including the above. 14. The aforementioned computer, The distance between the location indicated by the designated location information and the location indicated by the security guard location information is calculated, and a security guard corresponding to the security guard location information for which the calculated distance is less than or equal to a predetermined threshold is selected. The video transmission method described in 13., including the above. 15. The aforementioned computer, The temporal distance between the location indicated by the designated location information and the location indicated by the security guard location information is calculated. The video transmission method described in 14., including the above. 16. The aforementioned computer, Based on the security guard location information of the selected security guard and the designated location information, security guard route information indicating the route the selected security guard should take is generated. Using the security guard route information, an additional imaging device is selected that includes the route the selected security guard should take within its imaging range. A video transmission method described in any one of items 13 to 15, including the above. 17. The aforementioned computer, The video from the imaging device selected using the security guard route information is transmitted to the video sharing device in association with the security guard route information. The video transmission method described in 16, including the above. 18. The aforementioned computer, The security guard route information, which indicates multiple routes that the security guard should take, is transmitted to the monitoring center. Information on the route selected from the aforementioned multiple routes is received from the monitoring center. Using the received route information, the video from the selected imaging device is transmitted to the video receiving device held by the selected security guard. The video transmission method described in 16, including the above. 19. The aforementioned computer, Select the video receiving device located in the monitoring center as the video sharing device. The video transmission method described in 12., including the above. 20. In the aforementioned monitored area, the routes for guiding the crowd are predetermined. The aforementioned computer, The imaging device is selected to include in its imaging range an area located behind the position indicated by the specified position information on the movement path. A video transmission method described in any one of items 12 to 19, including the above. twenty one. In the aforementioned monitored area, the routes for guiding the crowd are predetermined. The aforementioned computer, The imaging device is selected to include in its imaging range an area located forward on the movement path from the position indicated by the specified position information. A video transmission method described in any one of items 12 to 19, including the above. twenty two. At least one of the imaging devices is held by at least one security guard, The aforementioned computer, If the imaging device held by at least one security guard is selected, notification information indicating that the video is being shared will be output to the notification device held by that security guard. A video transmission method described in any one of paragraphs 12 to 21, including the above. twenty three. Computers, A designated location information acquisition means that acquires designated location information indicating a specified position within a monitored area that includes each imaging area corresponding to each of multiple imaging devices, A video transmission control means that uses imaging position information indicating the position or imaging range of each of the plurality of imaging devices and the designated position information to select at least one imaging device from the plurality of imaging devices, and transmits the video captured by the selected imaging device to a video sharing device which is a device that should share the video. A program designed to function as such. twenty four. The aforementioned computer, A means for selecting at least one security guard using security guard location information indicating the location of a security guard holding a video receiving device and the designated location information, and selecting the video receiving device held by the selected security guard as the video sharing device. The program described in section 23 for making it function as such. twenty five. The aforementioned computer, A means for calculating the distance between the location indicated by the designated location information and the location indicated by the security guard location information, and selecting a security guard corresponding to the security guard location information for which the calculated distance is less than or equal to a predetermined threshold, The program described in section 24 to make it function as such. 26. The aforementioned computer, Means for calculating the temporal distance between the location indicated by the designated location information and the location indicated by the security guard location information, The program described in section 25 for making it function as such. 27. The aforementioned computer, Route information generation means that generates security guard route information indicating the route the selected security guard should take, based on the security guard location information of the selected security guard and the designated location information. Means for further selecting an imaging device that includes the path the selected security guard should take within its imaging range, using the aforementioned security guard route information. A program described in one of sections 24 through 26 to function as such. 28. The aforementioned computer, Means for transmitting the video from the imaging device selected using the security guard route information to the video sharing device, in association with the security guard route information. The program described in section 27 for making it function as such. 29. The aforementioned computer, The security guard route information, which indicates multiple routes that the security guard should take, is transmitted to the monitoring center. Information on the route selected from the aforementioned multiple routes is received from the monitoring center. Means for transmitting the video from the selected imaging device, using the received route information, to a video receiving device held by the selected security guard. The program described in section 27 for making it function as such. 30. The aforementioned computer, Means for selecting a video receiving device located in the monitoring center as the video sharing device, The program described in section 23 for making it function as such. 31. In the aforementioned monitored area, the routes for guiding the crowd are predetermined. The aforementioned computer, means for selecting the imaging device whose imaging range includes an area located behind the position indicated by the specified position information on the movement path, A program described in any one of sections 23 through 30 to function as such. 32. In the aforementioned monitored area, the routes for guiding the crowd are predetermined. The aforementioned computer, means for selecting the imaging device whose imaging range includes an area located forward on the movement path from the position indicated by the specified position information, A program described in any one of sections 23 through 30 to function as such. 33. At least one of the imaging devices is held by at least one security guard, The aforementioned computer, If the imaging device held by at least one security guard is selected, means for causing the notification device held by the security guard to output notification information indicating that the video is being shared, A program described in any one of sections 23 through 32 to function as such. 34. An imaging device having an imaging means, A means for acquiring designated location information that indicates a specified location within the monitored area, When imaging position information indicating the location or imaging range of the surveillance camera and the designated position information are in a predetermined relationship, the video transmission control means transmits the video captured by the imaging means to a video sharing device which is a device that should share the video. An imaging device equipped with the following features.

[0079] This application claims priority based on Japanese Patent Application No. 2015-256119, filed on 28 December 2015, and incorporates all of its disclosures herein.

Claims

1. A first process that obtains specified location information indicating a location specified based on input operations on the map screen, A second process involves calculating the time required for the user to reach the designated location based on the current location information of the user possessing the video receiving device and the designated location information, selecting the video receiving device to which the video captured by the camera-equipped drone within the range based on the location will be transmitted using the time required, and transmitting the video to the video receiving device. A program that causes a computer to execute something.

2. The second process includes the process of transmitting the video to a plurality of video receiving devices. The program according to claim 1.

3. The computer is further instructed to perform a third process to acquire information for identifying the drone equipped with the aforementioned camera. The program according to claim 1 or 2.

4. The computer is further instructed to perform a fourth process of acquiring the video footage from the drone equipped with the camera. The program according to any one of claims 1 to 3.

5. The second process further includes selecting the camera based on route information indicating the user's movement path. The program according to any one of claims 1 to 4.

6. A drone equipped with a camera for shooting video, A system comprising a video transmission control device for controlling the transmission of the aforementioned video, The aforementioned drone, The system has means for transmitting the aforementioned video to the video transmission control device, The aforementioned video transmission control device is A means for acquiring designated location information that obtains designated location information indicating a specified location based on input operations on a map screen, The system includes a video transmission means that calculates the time required for a user to reach a designated location based on the current location information of a user possessing a video receiving device and the designated location information, selects a video receiving device to which the video captured by the drone within the range based on the location will be transmitted using the time required, and transmits the video to the video receiving device. system.

7. The video transmission means transmits the video to a plurality of video receiving devices. The system according to claim 6.

8. The aforementioned video transmission control device is The system further comprises identification information acquisition means for acquiring information to identify the drone equipped with the aforementioned camera. The system according to claim 6 or 7.

9. The aforementioned video transmission control device is The system further comprises a video acquisition means for acquiring the video from a drone equipped with the aforementioned camera. The system according to any one of claims 6 to 8.

10. The video transmission means further selects the camera based on route information indicating the user's movement path. The system according to any one of claims 6 to 9.

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