JP4480177B2 - Control device, control method thereof, and program - Google Patents

Description

  The present invention relates to a technique that enables control of an imaging device according to weather information.

  Patent Document 1 discloses a security monitoring system with a camera in which electric power generated by a solar power generation device is charged into a storage battery to serve as a power source for a network camera, and the network camera is connected to the Internet via a portable telephone line. . In this conventional example, when an intrusion occurs, an intruder is illuminated with a projector, and an image taken by a network camera is notified to the setting destination by e-mail.

JP 2005-217678 A

  However, as in the invention disclosed in Patent Document 1, when a disaster monitoring system is configured that uses a solar battery and a storage battery as power sources and transmits an image to the outside using a mobile phone, the remaining power of the storage battery decreases when bad weather continues. However, there is a possibility that the image of the site cannot be transmitted properly. In particular, if bad weather continues for a long time, a situation may occur in which an image cannot be transmitted in the case of a liver kidney such as when a typhoon is approaching.

  Accordingly, an object of the present invention is to make it possible to execute appropriate photographing control in consideration of the remaining amount of electric power that changes according to weather conditions.

The present gun invention is connected via a communication line with at least one imaging device, said a controllable control device the frequency of taking an image of the imaging device, the predetermined period corresponding to the arrangement position of the imaging device An acquisition means for acquiring the weather information, a calculation means for calculating a remaining amount of power within the predetermined period of the power supply means for supplying power to the imaging device according to the weather information, and the acquisition means A first determination unit that determines whether or not the acquired weather information includes emergency information; and when the first determination unit determines that the weather information does not include the emergency information, the calculation Second determination means for determining whether the frequency at which the imaging device captures an image is reduced or not based on the remaining power of the power supply means calculated by the means, and the first determination means By the weather information When it is determined that the emergency information is present, the imaging device is controlled to increase the frequency at which the imaging device captures an image, compared to the frequency at which the emergency information is absent. If it is determined that there is no the emergency information to the weather information by determining means, that a control unit that controls the imaging device so that the frequency in accordance with the determination by said second determination means Features.
The power supply means further includes detection means for detecting the amount of power generated by the power generation means that supplies the generated power, and the second determination means is a power within the predetermined period of the power supply means. Based on the remaining amount and the amount of power generated by the power generation means, it is determined whether to reduce the frequency with which the imaging device captures an image.
In addition, the acquisition unit acquires the weather information for the predetermined period, and the calculation unit determines the remaining power of the power supply unit within the predetermined period according to the weather information for the predetermined period. And the second determination means captures an image according to whether or not there is a period during which the remaining power of the power supply means is 0 or less within the predetermined period. It is characterized by determining whether to reduce the frequency of performing.
Further, the power supply means further includes third determination means for determining whether or not the current remaining power level is equal to or lower than a predetermined level, and the control means determines the determination result of the third determination means. In accordance with the above, the frequency with which the imaging device captures an image is controlled.
Further, the calculation means calculates the remaining amount of electric power within a period shorter than the predetermined period when bad weather information is included in the weather information within the predetermined period.

  In the present invention, the power remaining amount of the power supply means is calculated according to weather information, and the photographing mode of the imaging apparatus is switched based on the calculated power remaining amount. Therefore, according to the present invention, it is possible to perform appropriate photographing control in consideration of the remaining amount of power that changes according to the weather conditions.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments to which the invention is applied will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram showing a configuration of a portable disaster monitoring camera system according to an embodiment of the present invention. In the portable disaster monitoring camera system according to this embodiment, the disaster monitoring camera system 100, the computer system of the disaster prevention center 400, and the computer system and server of the external organization 500 are connected by an IP-VPN (Virtual Private Network). . The disaster management camera system 100 is a portable disaster monitoring system that can be configured by a size and weight that can be carried by a disaster response person to a desired place and installed, and is installed in a place where a disaster may occur. . Although only one unit is illustrated in FIG. 1, a plurality of units (typically about several tens to a maximum of several hundreds) are usually installed.

  The disaster monitoring camera system 100 includes a camera expansion interface 101, a monitoring camera 102, a BB (Broad Band) router 103, an inverter 104, a power generation monitor 105, a main power battery 106, a sub power battery 109, a power control device 108, and power generation devices 1 to 1. 3 (111 to 113) and the like.

  The camera expansion IF 101 is an interface for connecting to an externally installed device 200 for issuing an emergency warning or the like.

  The monitoring camera 102 captures an image of a region that is a disaster monitoring target in response to an operation request or the like from the disaster prevention center 400 side. The monitoring camera 102 is connected to the camera extension IF 101 via a dedicated interface, and can control the externally installed device 200.

  The BB router 103 controls communication with the computer system on the disaster prevention center 400 side and the computer or server of the external organization 500 in IP-VPN. The BB router 103 is connected to the monitoring camera 102 via a LAN, and transmits image data captured by the monitoring camera 102 to the computer system on the disaster prevention center 400 side.

  The inverter (DC-AC converter) 104 includes a voltage regulator that converts a direct current supplied from the main power supply battery 106 and the sub power supply battery 109 into an alternating current and supplies the alternating current to the monitoring camera 102 and the BB router 103.

  The main power supply battery 106 is assumed to be a battery of about 60 Ah used for motorcycles and automobiles. The sub power supply battery 109 is assumed to be a total of about 24 Ah by combining a plurality of polymer batteries (for example, lithium polymer batteries). In order to reduce the weight, a main power supply battery having a capacity of about 60 Ah by combining a plurality of polymer batteries may be used.

  The power generation monitor 105 is connected to the main power supply battery 106 via the control IF 107 and monitors the remaining capacity of the main power supply battery 106.

  The power supply control device 108 is configured by, for example, a one-chip microcomputer including a CPU, a PC including storage means such as a flash memory and a ROM, or dedicated hardware (HW). The power supply control device 108 is connected to the main power supply battery 106 and the sub power supply battery 109 via the respective control IFs 107 and 110, and controls the switching of the power supply and the charging of the main power supply battery 106, as well as the monitoring cameras 102 and BB. Control the router 103. The power control device 108 is connected to both the main power battery 106 and the sub power battery 109 and is supplied with power from the main power battery 106 or the sub power battery 109. The ROM or flash memory stores a control program, which will be described later, and the CPU reads and executes the control program from the ROM or flash memory, thereby realizing the processing of the flowcharts shown in FIGS.

  Here, the power generation devices 1 to 3 (111 to 113) are configured by solar power generation units (39W, 17V). Other than this, a wind power generation unit, a hydropower generation unit, or the like may be applied. The electric power generated by the power generation devices 1 to 3 (111 to 113) is supplied to the main power supply battery 106 and can be charged.

  The sensor IF 117 is an interface between the disaster monitoring camera system 100 and the externally installed device 300, which includes a sensor body, an OP amplifier, a level conversion circuit using resistors, and the like.

  Examples of the externally installed device 200 connected to the camera expansion IF 101 include a rotating lamp 201 and an automatic broadcast device 202. The automatic broadcast device 202 includes a storage unit that stores a pre-recorded message, and includes an amplifier and a speaker that reproduces sound based on a control signal from the outside.

  As the externally installed device 300 connected to the sensor IF 117, a weather sensor (digital hundred leaf box: temperature, pressure, humidity, precipitation, wind direction and wind) 301, a vibration sensor 302, an acceleration sensor 303, and a microphone (acoustic) Sensor) 304 and the like.

  Next, the computer system on the disaster prevention center 400 side will be described. In FIG. 1, the computer system on the disaster prevention center 400 side is configured by connecting a BB router 401 and a disaster prevention person in charge PC 402 via a LAN. The BB router 401 controls communication with the disaster monitoring camera system 100 and the external organization 500 side in IP-VPN.

  The disaster prevention PC 402 is a PC operated by disaster response personnel and has a basic configuration as a computer such as a CPU, RAM, ROM, and hard disk. Note that a monitoring program, which will be described later, is stored in the hard disk of the disaster prevention PC, and the monitoring program is loaded into the RAM, and the CPU executes it to implement the processing shown in the flowchart of FIG. The storage means such as a hard disk or a large-capacity flash memory of the PC 402 for disaster prevention is provided with a disaster prevention database, which stores past monitoring results, disaster history data, and the like. The disaster prevention database does not need to be stored in the disaster prevention PC 402 in particular, but is stored in a separately installed DB server, and the disaster prevention PC 402 accesses the DB server to acquire the information. Good.

  Next, the external organization 500 side will be described. Here, in the external organization 500, an adjacent city disaster prevention network, a weather information providing server 504, a police traffic control server 503, an earthquake / tsunami information providing server 505, and a river water level information providing server 506 are installed.

  The adjacent city disaster prevention network is configured by connecting the BB router 501 and the adjacent area disaster prevention countermeasure room PC502 via a LAN. The adjacent city disaster prevention network is connected to the computer system on the disaster prevention center 400 side and each of the servers 503 to 506 via a region IX (Internet exchange) or the like. Therefore, the adjacent city disaster prevention network can communicate with the computer system on the disaster prevention center 400 side and each of the servers 503 to 506 via the region IX and the like.

  The weather information providing server 504 is installed by, for example, the Japan Meteorological Agency, and stores typhoon information, low pressure information, heavy rain information, AMeDAS information, and the like as weather information and publishes them on a website or FTP site.

  The police traffic control server 503 is installed by, for example, the National Police Agency, stores traffic regulation information, etc., and publishes it on a website or FTP site.

  The earthquake / tsunami information provision server 505 is installed by, for example, the Ministry of Land, Infrastructure, Transport and Tourism disaster prevention information provision center, stores earthquake information, tsunami information, and the like, and publishes them on a website or FTP site.

  The river water level information providing server 506 is installed by, for example, a river station, stores river water level information, etc., and publishes it on a website or FTP site.

  The weather information providing server 504, the police traffic control server 503, the earthquake / tsunami information providing server 505, and the river water level information providing server 506 are connected to the computer system on the disaster prevention center 400 side or an adjacent city disaster prevention network via the region IX or the like. . Accordingly, each of the servers 503 to 506 can communicate with the computer system on the disaster prevention center 400 side or the adjacent city disaster prevention network via the region IX or the like.

  Next, the flow of processing by the shooting control program of the monitoring camera 102 will be described with reference to FIG. FIG. 2 is a flowchart showing the processing of the shooting control program of the monitoring camera 102.

  In FIG. 2, in S <b> 201, the monitoring camera 102 performs an initialization process for the monitoring camera 102. That is, after the power is turned on, the health check of each part (self-diagnosis including checking of the drive motor for pan / tilt / zoom (PTZ)) is performed, and the photographing parameters such as the preset value of PTZ and the frame rate are read from the memory. Establish a connection with the destination. Then, image transmission to the PC 402 for shooting and disaster prevention is started.

  In S202, the monitoring camera 102 sets the interrupt acceptance availability from the disaster prevention PC 402 to be interruptible and advances the process to S203.

  In S203, the monitoring camera 102 scans for the presence of a control request, and if there is no control request, returns the process to S202. If there is an imaging condition change request (image request), the process proceeds to S204. If there is a PTZ change request, or if there is a power-off request, the process proceeds to S205.

  In S <b> 204, the monitoring camera 102 changes the imaging condition (frame rate, resolution, etc.) in response to a change request from the disaster prevention supervisor 402, continues the photography, and transmits the captured image data to the disaster prevention supervisor 402.

  In S205, the surveillance camera 102 drives each motor so as to obtain the requested PTZ value, and then advances the process to S206. If there is a power-off request, the PTZ value in the standby state stored in the memory of the monitoring camera 102 is read to drive each motor to the standby position, and the process proceeds to S206.

  In S206, when the power-off is not requested, the monitoring camera 102 returns the process to S202. If the power-off is requested, the imaging and image transmission are stopped, the shutdown process is executed, the power is turned off, and the process is terminated.

  Next, the flow of processing by the monitoring program of the PC 402 for disaster prevention personnel will be described with reference to FIG. FIG. 3 is a flowchart showing the processing of the monitoring program of the PC 402 for disaster prevention personnel.

  In FIG. 3, in S211, the CPU of the disaster prevention monitoring PC 402 loads an application program into an empty area of the memory (RAM), and secures a work area (PGM: program memory) for variables and necessary array areas. initialize.

  In S212, the CPU of the disaster prevention monitoring PC 402 establishes a session with the connected disaster monitoring camera system 100, and status information of each disaster monitoring camera system 100 (whether there is a failure, the remaining battery level, the battery mode, the local Weather information). Thereafter, the status information of each disaster monitoring camera system 100 is received at a constant time interval (for example, every 10 to 30 minutes).

  In S213, the CPU of the disaster prevention monitoring PC 402 connects to each of the servers 503 to 506 of the external organization 500 and captures each piece of information. The CPU of the disaster prevention monitoring PC 402 predicts the end date of bad weather (rainfall, storm, etc.) based on these pieces of information. Specifically, the position of the cyclone, the front and the typhoon, the pressure value of the cyclone and the typhoon, the extent of the bad weather area, the moving speed / direction, and the moving speed / direction transition information, the precipitation at each observation point Estimate the end date of bad weather based on the volume. The size of the bad weather area is indicated by, for example, how many km from the center of the low pressure or typhoon, etc., and the above transition information indicates, for example, that the moving speed gradually increases and the moving direction gradually increases from the north to the east. This is information indicating that the direction is changing. In addition, the prediction is made on a daily basis in consideration of the fact that there is a certain amount of time lag in the rise of the river water level etc. even if the error is somewhat large and the center of the low pressure is far away.

  In S214, the CPU of the disaster prevention monitoring PC 402 determines whether or not there is an incommunicable disaster prevention monitoring camera system 100 among the connected disaster prevention monitoring camera systems 100. To S215.

  In S215, the CPU of the disaster prevention monitoring PC 402 executes communication alert processing. In other words, the communication is retried several times and information (camera ID, camera installation location, etc.) specifying the disaster prevention monitoring camera system 100 that cannot communicate with the screen is displayed. In addition, a layout diagram of the disaster prevention monitoring camera system 100 is displayed on the screen, and a red circle is flashed and displayed at a location of the disaster prevention monitoring camera system 100 that cannot communicate. Furthermore, the ID of the disaster prevention monitoring camera system 100 that cannot communicate with the log recorded on the hard disk and the failure classification (communication impossible) communication interruption date (From, To) are added.

  In S <b> 216, the CPU of the disaster prevention monitoring PC 402 determines whether there is the camera inoperable disaster prevention monitoring camera system 100 among the connected disaster prevention monitoring camera systems 100. Advances the process to S217.

  In S217, the CPU of the disaster prevention monitoring PC 402 executes the camera alert process. In other words, communication is retried several times and information specifying the disaster prevention monitoring camera system 100 that cannot communicate with the screen is displayed. Moreover, the layout of the disaster prevention monitoring camera system 100 is displayed on the screen, and a red circle blinks and is displayed at the location of the disaster prevention monitoring camera system 100 where the camera operation is inadequate. Further, the ID of the disaster prevention monitoring camera system 100 that cannot communicate with the log recorded on the hard disk, the failure classification (camera operation impossible), and the communication interruption date (From, To) are added.

  In S218, the CPU of the disaster prevention monitoring PC 402 detects the operator's input operation (mouse button press or scroll operation, keyboard input operation). If no input operation is detected, the process returns to S212.

  In S219, the CPU of the disaster prevention monitoring PC 402 determines the type of the input operation, and if the input operation is a camera operation or a system end operation, the process proceeds to S221. If the input operation is to change the imaging mode, the process proceeds to S220.

  In S220, the CPU of the disaster prevention monitoring PC 402 collects each disaster prevention monitoring camera system 100, each disaster prevention monitoring camera system 100 group, or each disaster prevention monitoring camera system 100 according to the operator's selection input. Control information specifying the imaging mode to be changed is transmitted, and the process proceeds to S222. In the present embodiment, there are three imaging modes: “battery priority”, “normal”, and “imaging priority”.

  In S221, the CPU of the disaster prevention monitoring PC 402 transmits control information corresponding to the camera operation to the designated disaster prevention monitoring camera system 100. It is the same as S220 that each disaster prevention monitoring camera system 100 can transmit control information individually, for each group, or collectively. If the camera operation is a system end operation, control information indicating that the photographing is ended is transmitted to each disaster prevention monitoring camera system 100, and the process proceeds to S222.

  In S222, the CPU of the disaster prevention monitoring PC 402 determines whether there is a system termination operation. If there is a system termination operation, the monitoring program is terminated. If there is no system termination operation, the process returns to S212.

  Next, the flow of processing by the control program of the power control device 108 of the disaster monitoring camera system 100 will be described with reference to FIG. FIG. 4 is a flowchart showing a main routine of the control program of the power supply control device 108.

  In FIG. 4, when the power is turned on in S231, the CPU of the power supply control device 108 reads the ROM boot program and executes the boot process.

  In S232, the CPU of the power supply control device 108 initializes each parameter. The parameters can also be manually corrected via input means such as a keyboard connected to the controller (step S237). Details of the parameter initialization processing will be described later with reference to the flowchart of FIG.

  In S233, the CPU of the power supply control device 108 acquires health check information of each connected device (main power supply battery 106, sub power supply battery 109, solar power generation units 111 to 113, sensor I / F 117) at regular time intervals. . Then, the CPU of the power control device 108 stores the acquired health check information in a flash memory (hereinafter simply referred to as “memory”). The health check information is stored until it exceeds a certain capacity, and when it exceeds a certain capacity, it is overwritten and stored cyclically.

  In S234, the CPU of the power supply control device 108 refers to the health check information stored in the memory, and if there is a failed connected device, transmits the failure information to the disaster prevention person in charge PC 402 via the BB router 103. Even if there is no failure, the check result is transmitted. In S <b> 235, the CPU of the power supply control device 108 executes remaining amount prediction processing and shooting mode determination processing for the main power supply battery 106. In this shooting mode determination process, an imaging period or the like can be manually input from the input means (step S238). It is also possible to detect the occurrence of an event and determine a shooting mode corresponding to the event (step S239). Details of the processing in this step will be described with reference to the flowchart of FIG.

  In S <b> 236, the CPU of the power control device 108 determines whether an input for instructing system termination is received from the input means or a signal for terminating the system is received from the disaster supervisor PC 402 via the BB router 103. To do. When the system termination is designated, the connected devices other than the BB router 103 and the power control device 108 are turned off, and the process is terminated.

  Next, S232 (parameter initialization process) in FIG. 4 will be described in detail. FIG. 7 is a flowchart showing details of S232 of FIG. In S331, the CPU of the power supply control device 108 sets the latest average sunshine time stored in advance in the memory in the variable area for the application program in the memory. The average sunshine time set here is used for calculation of the remaining amount of power per day in S325 of FIG. 6 (S301 of FIG. 5).

  In S332, the CPU of the power supply control device 108 sets the LOW level threshold value of the main power battery 106 stored in advance in the memory in the variable area for the application program in the memory. The LOW level threshold is, for example, about 0.5 (50%) of the full capacity.

  Next, S235 (battery remaining amount prediction process) in FIG. 4 will be described in detail. FIG. 5 is a flowchart showing details of S235 in FIG. In S301, the CPU of the power supply control device 108 receives information (meteorological sensor information) such as atmospheric pressure, temperature, humidity, rainfall, and wind direction from the locally connected weather sensor 301, and external information from the disaster supervisor PC 402. Etc. are received and stored in the memory. Further, the remaining amount of the main power battery 108 and the power generation amount (output voltage and output current) of the solar cell modules 111 to 113 are also detected and stored in the memory. The above external information includes typhoon information, heavy rain information, AMeDAS information, dam information (water level, water discharge), traffic regulation information, river water level information, forecast end date of bad weather, various control information including imaging mode designation, etc. Is included. Of course, these pieces of information are information corresponding to the arrangement position of the monitoring camera 102. S301 is a process as an example of processing of the acquisition unit and the detection unit of the present invention.

  In S302, the CPU of the power supply control device 108 determines whether or not the control information for specifying the imaging mode is stored in the memory. If specified, the process proceeds to S308, and if not specified, the process proceeds to S303. Proceed to

  In S303, the CPU of the power supply control device 108 determines the current status based on external information (wide area weather information, dam information, etc.), weather sensor information, and event information from the external organization 500 received from the disaster officer PC 402. Determine if it is urgent. If the result of determination is urgent, the process proceeds to S307 (imaging priority mode), and if not urgent, the process proceeds to S304.

  For example, the amount of rainfall over time exceeds a certain value (for example, 50 millimeters per hour), is in a typhoon storm area, or the amount of dam discharge exceeds a certain value (for example, 15 tons per second). It is judged as urgent when there is a movement exceeding a certain value, a magnitude earthquake exceeding a certain value occurs, a tsunami warning is issued, etc.

  In S304, the CPU of the power supply control device 108 determines a remaining power warning flag based on the current battery capacity, power generation amount, predicted power consumption amount, and prediction of the end date of bad weather. If it is determined to be off, the process proceeds to S306 (normal mode). If it is determined to be on, the process proceeds to S305 (battery priority mode).

  In S305, the CPU of the power supply control device 108 selects the setting value of the shooting mode of “D / Day / Night Save” or the shooting mode of “E / Day / Night Save (Strong)” from the shooting mode setting value table shown in FIG. Then, shooting control is performed with the selected set value (battery priority mode). Details of S305 will be described with reference to the flowchart of FIG.

  In S306, the CPU of the power supply control device 108 performs shooting corresponding to the remaining power of the main power supply battery 106 and the power generation amount of the solar power generation modules 111 to 113 obtained in step S301 from the shooting mode determination table shown in FIG. Select the mode (A to E). Then, the CPU of the power control device 108 refers to the setting value of the selected shooting mode from the shooting mode setting value table shown in FIG. 11, and performs shooting control with the set value (normal mode).

  In S307, the CPU of the power supply control device 108 sets the setting value of the shooting mode of “F / day / night emergency” or the shooting mode of “G / day / night emergency (strong)” from the shooting mode setting value table shown in FIG. Select and perform imaging control with the selected set value (imaging priority mode). Note that the infrared light is turned on at night.

  In S308, the CPU of the power supply control device 108 executes power control with reference to the setting value of the designated imaging mode in the manual mode from the imaging mode setting value table (FIG. 11).

  Note that switching between the process flow from S304 to S305 and the process flow from S304 to S306 is a process that is an example of a process of the control unit of the present invention.

  Next, S301 (information collection processing) in FIG. 5 will be described in detail. FIG. 6 is a flowchart showing details of S301 in FIG.

  In step S <b> 321, the CPU of the power supply control device 108 determines whether or not an event such as motion detection based on image frame comparison of captured images or occurrence of vibration detection from the vibration sensor 302 has occurred. When an event occurs, the event type and content are stored in the memory as event information.

  In S322, the CPU of the power supply control device 108 acquires the remaining power amount of the main power supply battery 106 and the output current values of the solar power generation modules 111 to 113 and stores them in the memory.

  In S323, the CPU of the power supply control device 108 stores the current weather situation (temperature, atmospheric pressure, precipitation, wind direction) from the weather sensor 301 in the memory. In S324, the CPU of the power supply control device 108 receives external information (wide-area weather information, typhoon information / low pressure information, AMeDAS information, dam water level information, earthquake tsunami information, etc.) from the disaster prevention person's PC 402 and stores it in the memory. To do.

In S325, the CPU of the power supply control device 108 calculates the remaining daily power (Ah) of the main power supply battery 106 within two weeks from the present, and stores the calculation result in the memory. The remaining amount of power per day can be obtained by the following calculation formula. Note that S325 is a process that is an example of a process of the calculation unit of the present invention.
Remaining power (day + 1) = Remaining power (day) + Average sunshine duration x Weather factor (day) x Maximum power generation-Power consumption

  Here, the weather coefficient is the predicted power generation / maximum power generation of the photovoltaic power generation units 111 to 113 in the predicted weather, which is defined by the power generation prediction table of FIG. For example, if the weather predicted from the wide-area weather forecast data on a certain day is fine weather 50, the generated power is 3A, and the weather coefficient is 3/4 = 0.75. As described above, in this embodiment, it is possible to obtain the daily predicted power generation and the weather coefficient from the wide-area weather forecast data for two weeks.

  Further, the remaining amount of electric power every three hours is calculated in the same manner based on the wide-area weather data and weather sensor input on that day, and the calculation result is stored in the memory. The power consumption is a predetermined amount of power that is expected to be consumed in one day when used in the normal mode.

  However, for the prediction of the 0H and 3H power generation amounts for the day, the observation information (current atmospheric pressure, precipitation, temperature, wind direction) of the weather sensor 301 stored in the memory in S323 and the two-week weather in the table of FIG. Check the forecast data of 0H and 3H for the day in the forecast. If they do not match, the prediction data of 0H and 3H for the day in the table of FIG. 12 is corrected by the correction value rank of the power generation correction table based on the field observation information shown in FIG. 13 stored in the hard disk. The weather sensor in the present embodiment is configured by a rain sensor, an atmospheric pressure sensor, and a temperature sensor.

  For example, the forecast of 0H and 3H on the day is cloudy (30000 lux, output current 2A) as shown in FIG. However, when it is determined that the rainfall is 11 mm or more according to the observation information of the weather sensor 301, the amount of power generation (ranked with rain 10000 lux and output current 1A) is applied in the table of FIG. On the other hand, when the forecast data of 0H and 3H on the current day in the table of FIG. 12 is rainy, the observation information of the weather sensor 301 matches the forecast data, and no correction is performed.

  In S326, the CPU of the power supply control device 108 determines the shooting period. Details of the shooting period determination will be described with reference to the flowchart of FIG. The shooting period is usually two weeks, and even if the current main power supply battery 106 is below a predetermined LOW level, the expected end of bad weather is terminated based on wide-area weather information, typhoon information, low pressure information or heavy rain information even if it is short The shooting period is determined to be the shooting period of day + 1.

  Next, S305 (battery priority mode) in FIG. 5 will be described in detail. FIG. 8 is a flowchart showing details of S305 in FIG.

  In S401, the CPU of the power supply control device 108 determines whether the remaining capacity of the main power battery 106 is equal to or lower than a certain value (LOW level) based on the input from the power generation monitor 105, and determines that it is equal to or lower than the LOW level. If so, the process proceeds to S406. If it is determined that there is a remaining amount exceeding the LOW level, the process proceeds to S402. S401 is a process as an example of a process of the determination unit of the present invention.

  In S <b> 402, the CPU of the power control device 108 intermittently performs imaging processing by switching on / off the power supply from the main power battery 106 of the monitoring camera 102 at the time interval stored in the memory.

  In S <b> 403, the CPU of the power supply control device 108 turns off the power supply from the main power supply battery 106 to the weather sensor 301.

  In S <b> 404, the CPU of the power supply control device 108 changes to intermittent control that intermittently supplies power from the main power supply battery 106 to the externally installed device 300 other than the weather sensor 301.

  In S405, the CPU of the power supply control device 108 selects the setting value of the shooting mode “D / Day / Night Save” from the shooting mode setting value table of FIG. 11, and performs shooting control with the selected setting value.

  In S <b> 406, the CPU of the power control device 108 switches to the sub power battery 109 and then disconnects the main power battery 106.

  In S407, the CPU of the power supply control device 108 intermittently controls the power supply from the secondary power supply battery 109 (for example, 20 minutes on and 40 minutes off).

  In step S <b> 408, the CPU of the power control device 108 turns off the power supply from the sub power battery 109 to the externally installed device 200 such as the rotating lamp 201 or the automatic broadcast device 202.

  In S409, the CPU of the power supply control device 108 selects the setting value of the shooting mode “E / Day / Night Save (Strong)” from the shooting mode setting value table of FIG. 11, and performs shooting control with the selected setting value.

  Note that the switching from the flow from S401 to the processing after S402 and the switching from the flow from S401 to the processing from S406 are processing that is one processing example of the control means of the present invention.

  Thus, in the present embodiment, it is possible to further reduce the power consumption even in the battery priority mode, depending on whether or not the remaining power of the main power supply battery 107 is equal to or less than a predetermined LOW threshold value. The mode is switched between “E / Day / Night Save (Strong)” mode and “D / Day / Night Save” mode which is a normal battery priority mode.

  Next, S326 in FIG. 6 will be described in detail (determination of imaging period). FIG. 9 is a flowchart showing details of S326 in FIG.

  In S501, the CPU of the power supply control device 108 reads the wide-area weather information in the memory to determine whether or not the bad weather forecast is included. If the bad weather forecast is included, the process proceeds to S502. If a bad weather forecast is not included, the process proceeds to S504. Here, bad weather forecasts are typhoons, heavy rains (information on heavy rains from the Japan Meteorological Agency), low pressure (information on lows from the Japan Meteorological Agency), heavy snow (information on heavy snow from the Japan Meteorological Agency) Is a forecast that includes

  In step S502, the CPU of the power supply control device 108 sets a date obtained by adding 1 to the last bad weather day in two weeks as a shooting period, and stores it in the memory.

  In S503, the CPU of the power supply control device 108 reads out the result of the daily remaining power from the memory until the photographing period (from today to the next day after the last bad weather day) calculated in S325 and stored in the memory.

  In S504, the CPU of the power supply control device 108 sets the photographing period as two weeks and stores it in the memory.

  In S505, the CPU of the power supply control device 108 reads out from the memory the result of the daily remaining power until the shooting period (two weeks from today) calculated in S325 and stored in the memory.

  In S506, the CPU of the power supply control device 108 determines whether or not there is a day when the remaining power level becomes 0 or less within the photographing period of S503 or S505. If there is a day that becomes 0 or less, the process proceeds to S507. If there is no day that becomes 0 or less, the process proceeds to S508.

  In S507, the CPU of the power control device 108 turns on the remaining power warning flag and stores it in the memory. The remaining power warning flag is used to determine whether the battery priority mode in S304 in FIG. 5 is the normal mode. In S508, the CPU of the power supply control device 108 turns off the remaining power warning flag and stores it in the memory.

  As described above, in the present embodiment, when there is a day when the estimated remaining power level is 0 or less during the shooting period, the battery priority is set to turn on the remaining power level warning flag and reduce power consumption. Switch to mode.

  As described above, in the present embodiment, the power remaining amount of the main power supply battery 106 is calculated according to the weather information, and the imaging mode of the imaging device is switched based on the calculated remaining power amount. Yes. Therefore, it is possible to perform appropriate shooting control in consideration of the remaining amount of power that changes according to the weather conditions. That is, according to the present embodiment, it is possible to perform shooting control that takes into account the remaining amount of power predicted according to the weather even under bad conditions such as bad weather lasting for a long time.

[Other embodiments]
In the above-described embodiment, the disaster prevention person in charge PC 402 has been described as an example. However, the present invention is not limited to this. Needless to say good things. For example, an embodiment in which multiple disaster prevention centers in multiple municipalities in the same prefecture use one to several disaster prevention PCs, or multiple municipalities use a common server to provide external information and disaster monitoring camera systems It is also possible to take an embodiment in which various types of information received from the network are shared.

  Another object of the present invention is to supply a storage medium storing software program codes for realizing the functions of the above-described embodiments to a system or apparatus, and a computer such as the system reads out and executes the program codes from the storage medium. Is also achieved.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code itself and the storage medium storing the program code constitute the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, magnetic tape, nonvolatile memory card, ROM, DVD-R, etc. are used. be able to.

  In addition, the case where the functions of the above-described embodiment are realized by performing part or all of the actual processing by an OS or the like running on the computer based on the instruction of the program code read by the computer. It is.

  In addition, after the program code read from the storage medium is written in the memory provided in the function expansion unit connected to the computer, the CPU or the like performs actual processing based on the instruction of the program code, and the above-described processing is performed. The case where the functions of the embodiment are realized is also included.

  Furthermore, a configuration in which the program code is supplied to the computer via a communication medium such as the Internet is also included in the scope of the present invention.

It is a figure which shows the structure of the portable disaster surveillance camera system which concerns on embodiment of this invention. It is a flowchart which shows the process of the imaging | photography control program of a surveillance camera. It is a flowchart which shows the process of the monitoring program of PC for disaster prevention personnel. It is a flowchart which shows the main routine of the control program of a power supply control device. It is a flowchart which shows the detail of S235 of FIG. It is a flowchart which shows the detail of S301 of FIG. It is a flowchart which shows the detail of S232 of FIG. It is a flowchart which shows the detail of S305 of FIG. It is a flowchart which shows the detail of S326 of FIG. It is a figure which shows an example of an imaging | photography mode determination table typically. It is a figure which shows an example of an imaging | photography mode setting value table typically. It is a figure which shows an example of an electric power generation prediction table typically. It is a figure which shows an example of a power generation correction table typically.

Explanation of symbols

100 Disaster surveillance camera system 101 Camera expansion IF
102 Monitoring Camera 103 BB Router 104 Inverter 105 Power Generation Monitor 106 Main Power Battery 107, 110 Control IF
108 Power Control Device 109 Sub Power Supply Battery 111-113 Power Generation Device 114-116 Charging IF
117 Sensor IF
200, 300 Externally installed equipment 201 Revolving light 202 Automatic broadcast equipment 301 Weather sensor 302 Vibration sensor 303 Acceleration sensor 304 Acoustic sensor 400 Disaster prevention center 401 BB router 402 PC for disaster prevention
500 External organization 501 BB router 502 Adjacent area disaster prevention room PC
503 Police Traffic Control Server 504 Weather Information Providing Server 505 Earthquake / Tsunami Information Providing Server 506 River Water Level Information Providing Server

Claims (11)

A control device that is connected to at least one imaging device via a communication line and that can control the frequency with which the imaging device captures an image ,
Acquisition means for acquiring weather information for a predetermined period corresponding to the arrangement position of the imaging device;
A calculation unit that calculates a remaining amount of power within the predetermined period of a power supply unit that supplies power to the imaging device according to the weather information;
First determination means for determining whether or not there is emergency information in the weather information acquired by the acquisition means;
When the first determination unit determines that the weather information does not include the emergency information , the imaging device captures an image based on the remaining power of the power supply unit calculated by the calculation unit. Second determination means for determining whether to reduce the frequency of
If it is determined by the first determination means that the weather information includes the emergency information, the imaging is performed so that the frequency at which the imaging device captures an image is increased more than the frequency when there is no emergency information. On the other hand, when it is determined by the first determination means that the weather information does not include the emergency information, the imaging apparatus is set to have a frequency according to the determination by the second determination means. And a control means for controlling the control device. And further comprising a detection means for detecting the amount of power generated by the power generation means for supplying the generated power to the power supply means,
It said second determination means, based on the generation force of the power generating means and power remaining in said predetermined period of said power supply means, said photographing device you determine reduce the frequency of taking an image The control device according to claim 1. The acquisition unit acquires the weather information for the predetermined period, and the calculation unit calculates a remaining power amount of the power supply unit within the predetermined period according to the weather information for the predetermined period. frequency, and said second determination means, wherein within a predetermined period of time, which depending on whether the period in which residual power is zero or less of the power supply unit is present, the imaging device captures an image control device according to claim 1 or 2, characterized that you determine remove. And further comprising third determination means for determining whether or not the current power remaining amount of the power supply means is below a predetermined level,
The control means, in accordance with the judgment result of the third judging means, the control according to any one of claims 1 to 3 wherein the imaging apparatus is characterized that you control the frequency of capturing an image apparatus. The calculation unit according to claim 1 or 3, wherein when the weather information in the predetermined period includes bad weather information, the calculation unit calculates a remaining electric power in a period shorter than the predetermined period. The control device described. A control method for a control device that is connected to at least one imaging device via a communication line and that can control the frequency of capturing an image of the imaging device,
An acquisition step in which the acquisition unit of the control device acquires weather information for a predetermined period corresponding to the arrangement position of the imaging device;
Calculating means of the control device, a calculation step of calculating in accordance with the remaining power within the predetermined time period of the power supply means for supplying power to the imaging device to the weather information,
A first determination step of determining whether or not the weather information acquired by the acquisition unit includes emergency information, the first determination unit of the control device;
When the second determination unit of the control device determines that the emergency information is not included in the weather information by the first determination step, the remaining power amount of the power supply unit calculated by the calculation step A second determination step of determining whether or not to reduce the frequency with which the imaging device captures an image based on
When the control means of the control device determines that the weather information includes the emergency information in the first determination step, the frequency at which the imaging device captures an image is set to The imaging device is controlled to increase more than the frequency. On the other hand, when it is determined by the first determination step that the weather information does not include the emergency information, the determination is performed by the second determination step. And a control step of controlling the imaging device so as to have a frequency . The detection unit of the control device further includes a detection step of detecting the amount of power generated by the power generation unit that supplies the generated power to the power supply unit,
  Whether the second determination unit of the control device reduces the frequency at which the imaging device captures an image based on the remaining amount of power in the predetermined period of the power supply unit and the amount of power generated by the power generation unit The control method of the control apparatus according to claim 6, further comprising a step of determining The acquisition step acquires the weather information for the predetermined period, and the calculation step calculates a remaining power amount of the power supply means within the predetermined period according to the weather information for the predetermined period. Then, the second determination unit of the control device determines whether the imaging device captures an image according to whether or not there is a period in which the remaining power of the power supply unit is 0 or less within the predetermined period. The method for controlling a control device according to claim 6, further comprising a step of determining whether to reduce a frequency of photographing. The third determination means of the control device further includes a third determination step of determining whether or not the current power remaining amount of the power supply means is below a predetermined level;
  The control unit of the control device includes a step of controlling a frequency with which the imaging device captures an image according to a determination result of the third determination step. 2. A control method for a control device according to item 1. The calculation unit of the control device includes a step of calculating a remaining power in a period shorter than the predetermined period when bad weather information is included in the weather information in the predetermined period. The control method of the control apparatus of Claim 6 or 8. A program connected to at least one imaging device via a communication line and read and executed by a control device capable of controlling the frequency with which the imaging device captures an image ,
Acquisition means for acquiring weather information for a predetermined period corresponding to the arrangement position of the imaging device;
A calculation unit that calculates a remaining amount of power within the predetermined period of a power supply unit that supplies power to the imaging device according to the weather information;
First determination means for determining whether or not there is emergency information in the weather information acquired by the acquisition means;
When the first determination unit determines that the weather information does not include the emergency information , the imaging device captures an image based on the remaining power of the power supply unit calculated by the calculation unit. Second determination means for determining whether to reduce the frequency of
If it is determined by the first determination means that the weather information includes the emergency information, the imaging is performed so that the frequency at which the imaging device captures an image is increased more than the frequency when there is no emergency information. On the other hand, when it is determined by the first determination means that the weather information does not include the emergency information, the imaging apparatus is configured to have a frequency according to the determination by the second determination means. program for causing to function the control device as a control means for controlling the.

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