WO2013140671A1 - Fire detection system and fire detection method - Google Patents

Abstract

[Problem] To provide a fire detection system and a fire detection method that enable prompt fire-extinguishing activity, by detecting fires in an extensive area such as a forest, and by predicting the fire progression. [Solution] A system for monitoring forest fires by means of multiple infrared cameras and multiple visible light cameras, equipped with: an operation device for operating any one of the multiple infrared cameras or the multiple visible light cameras; and a control device having preset information table, in which position-related information indicating the mutual positional relationships of the multiple infrared cameras and the multiple visible light cameras, as well as preset rotational amount information indicating for each camera the direction in which the camera is rotated and the amount of rotation, are registered. When a fire is detected, the control device controls a visible light camera and rotates the camera, on the basis of the position-related information and the preset rotational amount information in the preset information table, toward the position where the fire has been detected, and the control device predicts the direction in which the fire will spread on the basis of environment information, and displays on the operation device the predicted spreading direction.

Description

Fire detection system and fire detection method

The present invention relates to a fire detection system and a fire detection method for monitoring a fire in a forest or the like, and more particularly to a fire detection system and a fire detection method for monitoring by combining an infrared camera and a visible camera.

As a system for detecting a fire in a predetermined monitoring area, a system that uses both an infrared camera and a visible camera for monitoring is employed (see Patent Document 1).
In Patent Document 1, as a system for detecting such a fire, a fire in a monitoring area is detected by an infrared camera, and is issued and displayed.

JP 2009-100198 A

In the above-mentioned patent document 1, since the fire information is displayed on the display means, the supervisor can easily detect the fire. In addition, by displaying the fire information on the display means, it is possible to analyze at the time of early detection and investigation of the cause of the fire by knowing the time and elapsed time of the fire, the place where the fire occurred, and the scale of the fire Become. Furthermore, it can be used as data for restoration and construction of important facilities.
Furthermore, it is an effective means for a fire that has occurred in a narrow area, as it is only necessary to expedite fire extinguishing activities at the site where the fire occurred. However, in large areas such as forests, the monitoring range is widened, and it takes time for the extinguishing personnel and the crisis to arrive at the scene, during which the fire spread area spreads or fires occur in areas away from the fire occurrence area. There is a risk that proper fire fighting may not be possible.
An object of the present invention is to provide a fire detection system and a fire detection method that enable quick fire extinguishing activities by performing fire detection in a wide area such as a forest.

In order to achieve the above object, the fire detection system and the fire detection method of the present invention are a system for monitoring a forest fire with a plurality of infrared cameras and a plurality of visible cameras. An operation device for operating any one of the camera or the plurality of visible cameras, position-related information indicating a mutual positional relationship between the plurality of infrared cameras and the visible cameras, and a turning direction and a turning amount of each camera. A control device having a preset information table in which preset turning amount information is registered, and when the control device detects a fire, based on the position related information and the preset turning amount information in the preset information table, the visible camera To the fire detection position, the control device predicts the fire spread direction based on environmental information, and It is for displaying the fire direction predicted in the apparatus.

That is, the fire detection system of the present invention is designated as a monitoring area divided into a plurality of preset areas, an infrared camera unit that performs a preset operation for imaging the predetermined preset area and transmitting the captured infrared image. A visible camera unit that captures an area of position coordinates and transmits a captured visual image, a weather observation device that observes weather information, a monitoring terminal that is monitored by a supervisor, the infrared camera unit, the visible camera unit, and the weather A fire detection system comprising an observation meter and a control device for controlling the monitoring terminal, wherein the infrared camera unit moves the predetermined preset area at a predetermined cycle under the control of the control device. The visible camera unit changes the pan angle, tilt angle, and zoom magnification, and designates from the control device. The area of the position coordinates is captured, and the captured visual image is transmitted, the meteorological observation device observes the weather condition of the installation location, and the monitoring terminal transmits an infrared image and a visible image transmitted from the control device, In addition, the map information of the infrared camera unit and the visible camera unit is displayed on the display unit, and when the fire button is pressed or the negative button is pressed, the investigation result is transmitted to the control device. The preset operation of the infrared camera unit is resumed when a negative button is pressed as an operation result from the monitoring terminal.

In the fire detection system of the present invention, the control device may stop the preset operation of the infrared camera unit when the fire button is pressed as an operation result from the monitoring terminal. Features.

Further, the fire detection method of the present invention performs a preset operation of imaging a predetermined preset area among monitoring areas divided into a plurality of preset areas, and transmitting the captured infrared image to the control device, and performing image processing. When a fire is detected by the above, a visual image is captured of the position where the fire was detected, and at least one of the meteorological information received from a weather station, a meteorological satellite, or an external organization A direction is predicted, a display image in which the predicted fire spread direction is displayed on a map indicating the monitoring area together with the visible video is transmitted to the monitoring terminal, and the visible video and the display image are displayed on the monitoring terminal. When the fire button is pressed, it is determined that a fire has actually occurred, the preset operation of the infrared camera unit is stopped, and the negative button is pressed. If the is characterized by resuming the preset operation of the infrared camera unit.

According to the present invention, it is possible to automatically detect fire in a wide area and automatically display a video in the area where the fire is detected, thereby reducing the amount of operation by the supervisor and enabling accurate fire extinguishing work instructions.

It is a block diagram for demonstrating the structure of one Example of the fire detection system of this invention. It is a figure for demonstrating one Example of the operation screen displayed on the display part of the monitoring terminal of the fire detection system of FIG. It is a figure for demonstrating one Example of the display of the monitoring camera setting display area displayed on the operation screen of FIG. It is a flowchart for demonstrating the operation | movement procedure of one Example of the fire detection system and fire detection method of this invention. It is a figure for demonstrating the preset area which a far-infrared camera images. It is a block diagram for demonstrating the structure of one Example of the fire detection system of this invention. It is a block diagram for demonstrating the structure of one Example of the fire detection system of this invention. It is a block diagram for demonstrating the structure of one Example of the fire detection system of this invention. It is a block diagram for demonstrating the structure of one Example of the fire detection system of this invention.

The present invention relates to a fire detection system and a fire detection method for monitoring a forest fire using an infrared camera such as a plurality of far infrared cameras and a plurality of visible cameras, and the infrared cameras are registered in a preset information table. When a fire is detected from the infrared image captured by the infrared camera, the other visible camera is swung in the fire detection direction to predict the future fire spread direction and displayed on the monitoring terminal. To do. And the visible light image which the visible camera imaged is transmitted to a monitoring terminal, and it is made to make a monitoring person confirm whether it is an actual fire.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In addition, the following description is for describing one embodiment of the present invention, and does not limit the scope of the present invention. Accordingly, those skilled in the art can employ embodiments in which these elements or all of the elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.
In the description of each drawing, the same reference numerals are assigned to components having the same function, and the description is omitted as much as possible to avoid duplication.

An embodiment of the fire detection system of the present invention will be described with reference to FIG. FIG. 1 is a block diagram for explaining the configuration of an embodiment of the fire detection system of the present invention, and the block diagram for explaining the configuration of an embodiment of the fire detection system in the forest where the monitoring area is a forest. It is. 111 and 112 are far-infrared cameras, 121 and 122 are visible cameras, 131 to 134 are encoders, 140 is an anemometer installed at a predetermined place in the monitoring area, 150 is a network, 160 is a monitoring terminal such as a personal computer, Reference numeral 170 denotes a control server. In the control server 170, 171 is a preset information table, 172 is a weather information memory, 173 is a map information memory, 174 is a pan head operation processing unit, 175 is an infrared camera image memory, 176 is an infrared camera image processing unit, and 177 is The fire spread direction prediction processing unit 179 is a control unit of the control device 170. The far- infrared cameras 111 and 112 and the visible cameras 121 and 122 each include a pan head for variably controlling the pan angle and the tilt angle, and a zoom mechanism for variably controlling the zoom magnification.
Various monitoring devices such as the infrared cameras 111 and 112, the visible cameras 121 and 122, and the anemometer 140 installed in the monitoring area can be considered as drive power sources for these devices. For example, when there is a commercial power supply for supplying individually or collectively to a plurality of units, the supply may be received from the commercial power supply, but other batteries may be provided, and a solar cell may be further provided. .

In FIG. 1, far- infrared cameras 111 and 112, and visible cameras 121 and 122 are arranged at predetermined positions in a monitoring area, and each captures an image within a designated angle of view, and displays the captured video. Output as a signal.
The encoder 131 converts the video input from the far-infrared camera 111 into video data in a format that can be transmitted by the network 150 and transmits the video data to the control device 170 via the network 150. Similarly, the encoder 132 converts the video input from the far-infrared camera 112 into video data in a format that can be transmitted by the network 150 and transmits the video data to the control device 170 via the network 150.
The encoder 133 converts the video input from the visible camera 121 into video data in a format that can be transmitted by the network 150 and transmits the video data to the control device 170 via the network 150. Similarly, the encoder 134 converts the video input from the visible camera 122 into video data in a format that can be transmitted by the network 150, and transmits the video data to the control device 170 via the network 150.
The anemometer 140 observes the wind speed and the wind direction at the installation location, and transmits them to the control device 170 via the network 150 at a predetermined cycle.

In the configuration of the fire detection system of the present invention, a visible camera capable of imaging a monitoring area (a preset area described later) captured by an infrared camera such as a far-infrared camera is always provided. In the embodiment of FIG. 1, the visible camera 121 is installed so as to be able to capture the same monitoring area with respect to the far-infrared camera 111, and the visible camera 122 is capable of capturing the same monitoring area with respect to the far-infrared camera 112. is set up. However, one visible camera does not have to correspond to one infrared camera, and a visible camera is installed so that one visible camera covers the surveillance area of multiple infrared cameras or a part of them. You may do it. In addition, a plurality of visible cameras may be installed on one infrared camera so that the same surveillance area can be imaged simultaneously.
Note that when the far- infrared cameras 111 and 112 and the visible cameras 121 and 122 are Web cameras, an encoder is not necessary.

The network 150 functions as a communication medium among the encoders 131 to 134, the anemometer 140, the monitoring terminal 160, and the control device 170.
The monitor operates using the input / output device (not shown) for the operation of the control device 170 and communication with other monitoring terminals while looking at the operation screen 161 (described later) of the monitoring terminal 160. Is.
The control device 170 communicates with the far- infrared cameras 111 and 112, the visible cameras 121 and 122, and the anemometer 140 via the network 150.

The monitoring terminal 160 of the fire detection system of the present invention will be described with reference to FIG. FIG. 2 is a diagram for explaining an embodiment of the operation screen displayed on the display unit of the monitoring terminal of the forest fire system of FIG.
161 is an operation screen, 162 is a video display area for displaying the output video of the selected camera among the infrared cameras 111 and 112 and the visible cameras 121 and 122, 163 is a map of the monitoring area, and the camera at which position on the map Surveillance camera installation display area for displaying an icon indicating whether or not is installed. 164 is an operation button display area for displaying an operation graphic such as a button for an operator (not shown) to operate by a GUI operation or the like from an input / output device. Is a pan head operation button for operating the pan angle and tilt angle of the selected camera in the operation button display area 164, and 166 is a zoom magnification for changing the zoom magnification of the selected camera in the operation button display area 164. A change button 167 is a weather for displaying weather information such as wind speed and direction observed by the anemometer 140 Broadcast display area, 181 fire button, the 182 is negative button.
In the surveillance camera installation display area 163, 168 is a camera display area, 111 a is a camera icon representing the far-infrared camera 111 displayed in the camera display area 168, and 112 a is a far-infrared camera 112 displayed in the camera display area 168. A camera icon 121a is a camera icon representing the visible camera 121 displayed in the camera display area 168, and a camera icon 122a is a camera icon representing the visible camera 122 displayed in the camera display area 168. In the operation button display area 164, 111b is a camera selection button representing the far- infrared camera 111, 112b is a camera selection button representing the far- infrared camera 112, 121b is a camera selection button representing the visible camera 121, and 122b is the visible camera 122. This is a camera selection button.
The monitoring terminal 160 of the present invention includes at least a display unit for displaying such an operation screen, a CPU, and an input / output device for an operator to operate the operation screen (not shown).

In FIG. 2, the operation screen 161 displays at least a video display area 162, a monitoring camera installation display area 163, an operation button display area 164, and a weather information display area of the anemometer 140.
In the video display area 162, camera icons 111a, 112a, 121a, 122a displayed in the monitoring camera installation display area 163, or camera selection buttons 111b, 112b, 121b, 122b displayed in the operation button display area 164 are displayed. The image captured by either the far- infrared camera 111 or 112 or the visible camera 121 or 122 selected in (1) is displayed.

The monitoring camera installation display area 163 corresponds to the outline of the monitoring area stored in the map information memory 173 of the control server 170 and the installation location of the far- infrared cameras 111 and 112 or the visible cameras 121 and 122 in the monitoring area. The camera icons 111a to 122a are displayed.
The camera icons 111a to 122a are displayed according to the positional relationship information registered in the preset information table 151 of the control server 170. For example, the far-infrared camera 111, the visible camera 121, the far-infrared camera 112, and the visible camera 122 are arranged in this order from the left of the monitoring camera installation display area 163.

Further, the operation button display area 164 includes camera selection buttons 111b to 122b of the far- infrared cameras 111 and 112 and the visible cameras 121 and 122 in the monitoring area, and any one of the far- infrared cameras 111 and 112 and the visible cameras 121 and 122. A turn operation button 165 for operating the turn of the table, and a weather information display area 166 showing weather information (wind speed and direction in the present embodiment) stored in the weather information memory 157 are displayed.

Preferably, when any one of these camera icons 111a to 122a is selected from the operating device in accordance with the operation of the operator, the selected camera icons 111a to 122a and the camera name display units 111b to 122b are, for example, Another color (for example, blue) may be displayed in blue or the like.
As a result, any of the selected camera icons 111a to 122a can be easily distinguished from the unselected camera icons 111a to 122a.
When any one of the camera icons 111a to 122a is selected, the video image captured by the camera (far infrared camera 111 or 112 or visible camera 121 or 122) corresponding to the selected camera icon 111a to 122a is displayed. Are displayed in the video display area 162. In this case, preferably, the display color of the camera icon and the camera selection button corresponding to the selected camera may be displayed in another color (for example, blue).
As a result, any of the selected camera icons 111a to 122a can be easily distinguished from the unselected camera icons 111a to 122a.
In other words, in the surveillance camera installation area 163, the camera icon corresponding to the camera that captured the image displayed in the camera icon image display area 162 is highlighted by means such as blue display or blinking display. You may do it. Similarly, the camera selection button corresponding to the camera that captured the video displayed in the camera icon video display area 162 in the operation button display area 164 is highlighted by means such as blue display or blinking display. Also good. More preferably, the highlighting may be highlighted in the same manner by the camera icon and the camera selection button.
As a result, the operator can quickly and easily distinguish which of the camera icons 111a to 122a and the camera selection buttons 111b to 122b is selected.

The control device 170 in FIG. 1 includes positional relationship information indicating the mutual positional relationship between the far- infrared cameras 111 and 112 and the visible cameras 121 and 122, and turning of the far- infrared cameras 111 and 112 and the visible cameras 121 and 122, respectively. It has a preset information table 171 in which turning amount information indicating amounts (pan angle and tilt angle and zoom magnification) is registered.
In addition, the control device 170 has a weather information memory 172 that stores information on the anemometer 140.
In addition, the control device 170 has a map information memory 173 that stores an overview of the monitored area and a result of predicting the spread of fire direction.
In addition, the control device 170 controls the panning amount (pan angle and tilt angle, and zoom magnification) of either one of the infrared camera or the visible camera in accordance with an operation from the monitoring terminal 160. Have
The pan head control unit 174 periodically turns the far- infrared cameras 111 and 112 based on the positional relationship information in the preset information table 151 and the turning amount information for the preset periodically to change the zoom magnification. .
In addition, the control device 170 has a far infrared camera memory 175 that stores image data captured by the far infrared cameras 111 and 112.
Further, the control device 170 performs image recognition determination processing for determining, for example, whether or not the fire is captured by the far-infrared camera 111 based on the image data stored in the far-infrared camera memory 173. A processing unit 176 is included.
That is, the far-infrared camera image processing unit 176 determines whether or not a fire has occurred by detecting a change in image data between frames in the captured video.

The control device 170 performs a fire spread simulation based on the weather information in the weather information memory 172, the positional relationship information in the preset information table 171 and the preset turning amount information, and the result is stored in the map information memory 173. A fire spread direction prediction processing unit 177 is provided. Note that the fire spread direction prediction processing is executed using an existing fire spread prediction simulation such as Hamada's fire spread rate formula.

1 to 4 will be used to explain an embodiment of the fire detection system and fire detection method of the present invention. FIG. 3 is a diagram for explaining an example of display in the monitoring camera setting display area 163 of FIG. FIG. 4 is a flowchart for explaining an operation procedure of an embodiment of the fire detection system and the fire detection method of the present invention. This operation is executed by the control unit 179 of the control device 170.

The grids in the monitoring camera setting display area 163 indicate the imaging range (hereinafter referred to as a preset area) when the far infrared camera images the entire monitoring area at a predetermined preset position. The far- infrared cameras 111a and 112a are controlled by the control device 170 based on turning amount information (preset information) for presetting at predetermined time intervals, and control the pan head and zoom lens to control the pan angle and tilt. The angle and zoom magnification are changed, and imaging is performed at a predetermined preset position. Reference numeral 201 denotes a preset area where the far-infrared camera 111a determines that a fire has been detected, and 201a to 202e denote preset areas where the spread of fire is predicted. Each far-infrared camera has a preset position registered in advance, and rotates (moves) to a preset position registered at a predetermined cycle to image the preset area, and the captured infrared image is transmitted via an encoder and a network. To the control device 170. The control unit 179 of the control device 170 stores the received infrared video in the infrared camera image memory 175.

In the following operations, the far- infrared cameras 111 and 112 operate independently and communicate with the control device 170 independently, and the control device 170 controls the far- infrared cameras 111 and 112 separately. For example, as shown in FIG. 5, the far-infrared camera 111 changes the preset position in a predetermined cycle in the order of the preset areas 1p1, 1p2, and 1p3 in the monitoring area 163, and performs imaging at the preset position. The captured image is transmitted to the control device 170.
In addition, the following description is demonstrated by the far-infrared camera 111 and the visible camera 121. FIG. Further, observation data (meteorological information) transmitted from a weather observation device such as an anemometer is input to the weather information memory 172 and is always stored. In addition, all meteorological information input such as meteorological observation meters, meteorological information from meteorological satellites, and meteorological information transmitted from external organizations such as the Japan Meteorological Agency are always met It continues to be stored in the memory 172.

First, in step S1, i, which is an ID number indicating a preset area, is initialized (i = 1).
In step S2, the far-infrared camera 111 is preset moved to the preset position in the preset area i.
In step S <b> 3, the far-infrared camera 111 captures the preset area i and transmits the captured image to the control device 170.
In step S4, the video is stored in the infrared camera image memory 175.
In step S5, the infrared camera image processing unit 176 obtains a difference from the background image or a difference from the image of the previous frame, and performs image processing such as binarization.
In step S6, it is determined from the image processing result whether or not a fire has been detected. For example, it is detected by image processing whether there is a cluster of pixels having a predetermined temperature (for example, 80 ° C.) or more. If it is determined that a fire has been detected, the process branches to step S7. If it is determined that no fire is detected, the process branches to step S12.

In step S7, the visible camera 121 is turned to the preset area i where the fire is detected, and the zoom magnification is also changed in some cases. For example, the control unit 179 rotates the visible camera 121 (and changes the zoom magnification) based on the positional relationship information and the preset turning amount information in the preset information table 171.
In step S <b> 8, the visible camera 121 that has finished turning images the preset area i where the fire is detected, and transmits the captured image to the control device 170.
In step S9, the fire spread direction prediction processing unit 177 of the control device 170 performs a simulation process to obtain a fire spread direction and a fire spread prediction area after a predetermined time. The size of the area that is expected to spread after a certain period of time (expanded area) is usually determined for each preset area that divides the monitoring area, and is not the estimated area that is expected to spread after a certain period of time. Determine whether. For example, it is predicted that the fire spread direction prediction processing unit 177 performs a fire spread simulation based on the weather information in the weather information memory 172, the preset information table 171 positional relationship information, and the preset turning amount information and spreads after a predetermined time. Simulate whether or not it is a predicted fire spread area.

In step S <b> 10, the preset area i where the fire is detected and the fire spread prediction area are stored in the map information memory 173.
In step S11, a control signal is transmitted to each monitoring terminal so as to output an alarm sound, and each transmitting terminal 160 outputs an alarm and, as shown in FIG. 3, a fire occurs in the monitoring camera installation display area 163. A symbol (mark) indicating the occurrence of a fire is displayed in a preset area corresponding to the place, and a symbol (mark) indicating the spread of fire is displayed in a preset area predicted to spread after the next predetermined time.
In addition, when showing the preset area which spreads after several predetermined time of a fire spread, you may make it display a respectively different color and a symbol (mark).
More preferably, the display color may be changed to another color, and icons, frames, and the like may be blinked.
Furthermore, in the surveillance camera installation display area 163, it is applied to an infrared camera or a visible camera that simultaneously displays a symbol or color that is the same as or similar to the symbol or color of a preset area where a fire has occurred or where a fire spread is predicted. Thus, it is easy to understand when the monitoring person next performs an operation for confirming whether or not a fire has actually occurred.
Furthermore, when the monitor selects a preset area by operating the operation unit, position information, vegetation information, information on wooden houses, rebar houses, etc., and extinguishing the nearest fire extinguisher are selected. If information such as an organization is displayed in the monitoring camera installation display area 163, the monitor can obtain more useful information and make a more appropriate determination.

In step S12, 1 is added to i (i = i + 1).
In step S13, it is determined whether i is greater than the number n of preset positions of the far-infrared camera 111 (n is a natural number). If i is smaller than or equal to n, the process branches to step S2. If i is larger than n (i> n), the process branches to step S1.
Thereafter, the operation from step S2 or step S1 is repeated.

As a result, when the control device 170 detects the occurrence of a fire, each monitoring terminal 160 automatically turns to the video display area 162 of the operation screen 161 of the display unit as shown in FIG. The image captured by the visible camera 121 is displayed, and the fire detection position 201 and the fire spread direction predicted positions 202a to 202e are displayed in the monitoring camera installation display area 163. And the monitoring terminal 160 outputs the alarm sound which calls attention. The alarm may be transmitted by auditory means such as an alarm, or may be transmitted by visual means such as light emission, or may be a combination thereof.
In addition, after outputting an alarm, the process of this flowchart will be in a standby | waiting state until the information of whether it is a fire is received from the monitoring person via the monitoring terminal 160. FIG.
However, there is a possibility that information (whether or not a fire has occurred) is received from the observer, so if no information is received even after the predetermined time Z has elapsed, a predetermined person or department (fire department) , City offices, police, forest management offices, etc.).

In step S11, when an alarm is output from the monitoring terminal 160, the monitoring staff first checks the operation screen of the nearby monitoring terminal 160 to confirm whether or not a fire has actually occurred.
The monitor looks at the video in the video display area 162 on the operation screen, and if necessary, selects the video of another far-infrared camera or other visible camera and switches the image to be displayed. To check.
Note that the video displayed in the video display area 162 is the currently captured video in the normal setting, but can be reproduced retroactively to the video captured in the past.

When the monitoring person determines that a fire has not actually occurred, the monitoring person operates (presses) the negative button 182 on the operation screen. The operation result is transmitted from the monitoring terminal 160 to the control device 170, and the control device 170 proceeds to step S12 assuming that there is no fire.

When it is determined that a fire has actually occurred, the monitor operates (presses) the fire button 181 on the operation screen. The operation result is transmitted from the monitoring terminal 160 to the control device 170, and promptly notified to related parties and related departments. And a fire occurrence place, a predicted fire spread direction, or a predicted fire spread place can be confirmed on the map of the operation screen. For this reason, fire fighting activities can be started quickly and easily. For example, when the monitor operates (presses) the fire button 181, the fact that a fire has occurred is transmitted to the control device 170. Then, the control device 170 stops the monitoring process of the far-infrared camera (the process of the flowchart in FIG. 4). Depending on the setting, the processing of other far-infrared cameras may be stopped.

This eliminates the need for the monitoring staff to always look at the monitoring terminal 160 and view images captured by the far-infrared cameras. As a result, it is possible to save labor in monitoring activities. Further, since the location of the fire occurrence and the predicted fire spread direction can be known from the map of the monitoring camera installation display area 163 displayed on the operation screen, a fire extinguishing work instruction can be executed quickly and easily.

In the above-described embodiment, the fire detection system is based on a plurality of far-infrared cameras and a plurality of visible cameras. However, it can also be operated as a system that detects fire with one infrared camera and one visible camera. It can also be operated as a system for detecting fire by combining one infrared camera and a plurality of visible cameras. It can also be operated as a system that detects fire by combining a plurality of infrared cameras and one visible camera.

FIG. 6 is a block diagram for explaining the configuration of the second embodiment of the fire detection system of the present invention. In the first embodiment (embodiment 1) described above, a single monitoring terminal 160 has been described. However, as shown in the second embodiment of FIG. 6, in addition to the monitoring terminal 160, a plurality of monitoring terminals 601 are provided via the network 150, and the monitoring staff can use one of the monitoring terminals 160 and 601. Information detected by the control device 170 may be confirmed to confirm whether a fire has actually occurred. In that case, the control device 170 performs the processing of the flowchart of FIG. 4 with priority given to the information received first (information on whether or not a fire has occurred).

In addition, even if there is a priority order for the monitoring terminal or the monitoring staff and there is the first received information (information on whether or not a fire has occurred), the monitoring terminal or monitoring staff with the higher priority within the predetermined time Y will reverse If there is information (for example, information indicating that the first information is not a fire, or a high-priority monitoring terminal or monitoring person is a fire), the control device 170 ignores the first information and reverse information. Depending on the process.

According to the second embodiment, since it is possible to monitor with a plurality of monitoring terminals, it is possible to realize more rapid and appropriate fire detection than in the first embodiment. In addition, even if one monitoring terminal goes down, other monitoring terminals can perform processing, thereby improving the reliability of the system.

In the first embodiment or the second embodiment described above, the wind speed and the wind direction received from the anemometer 140 are stored in the weather information memory 172 of the control device 170, and the fire spread direction prediction processing unit 177 stores the wind speed and the wind direction as weather information. Was used to predict the direction of fire spread.
However, as shown in the third embodiment of FIG. 7, other meteorological observation meters 701-1 to 701-m (m is a natural number) are used, and the observation information is stored in the weather information memory 172 as weather information. The fire spread direction prediction processing unit 177 may predict the fire spread direction using these weather information as weather information. For example, each of the meteorological observation devices 701-1 to 701-m observes the meteorological condition at the ground contact location, and transmits the observed information to the control device 170 via the network 150. The control unit 179 of the control device 170 stores the received weather state in the weather information memory 172.
FIG. 7 is a block diagram for explaining the configuration of the third embodiment of the fire detection system of the present invention.
Note that the meteorological observation meters 701-1 to 701-m are, for example, thermometers, hygrometers, illuminance meters, rain gauges, river water level meters, and the like.
According to the third embodiment, the fire spread direction can be predicted more appropriately than the first and second embodiments, so that the reliability of the system is further improved.

FIG. 8 is a block diagram for explaining the configuration of the fourth embodiment of the fire detection system of the present invention. In the first to third embodiments described above, the weather information stored in the weather information memory 172 is current and past information from various weather observation devices 701-1 to 701-m such as the anemometer 140. However, as shown in FIG. 8, the network 150 or the control device 170 directly receives the weather information from the weather satellite 801. Then, the weather information of the weather satellite is stored in the weather information memory 172. As a result, the control device 170 can use the weather forecast information. Therefore, the fire spread direction can be predicted more appropriately than in the first to third embodiments.
Note that a weather forecast may be received from a forecasting organization such as the Japan Meteorological Agency via a network to predict the same fire spread direction.

Further, a fifth embodiment to which all the second, third, and fourth embodiments are applied will be described with reference to FIG. FIG. 9 is a block diagram for explaining the configuration of the fifth embodiment of the fire detection system of the present invention.
The system configuration of FIG. 9 is provided with a plurality of monitoring terminals 160 and 601 via the network 150 as in the second embodiment of the present invention, and further, in the same manner as in the third embodiment of the present invention, the wind speed In addition to the total 140, other meteorological observation meters 701-1 to 701-m (m is a natural number) are stored in the weather information memory 172 as weather information. Using these weather information as information, the fire spread direction is predicted. Furthermore, as in the fourth embodiment of the present invention, the weather information stored in the weather information memory 172 is the current and past information by various weather observation devices 701-1 to 701-m such as the anemometer 140. In addition, weather information is received from the weather satellite 801 and stored in the weather information memory 172. As a result, the control device 170 can use the weather forecast information.

As a result, the fire spreading direction can be predicted more appropriately than in the first to fourth embodiments, and can be monitored by a plurality of monitoring terminals, so that more rapid and appropriate fire detection can be realized. . In addition, even if one monitoring terminal goes down, other monitoring terminals can perform processing, thereby improving the reliability of the system.

The present invention can be applied not only to fire monitoring in a wide area such as a forest, but also to fire monitoring in a non-wide area such as a residential area or a factory site.

111, 112: Far-infrared camera, 121, 122: Visible camera, 111a, 112a, 121a, 122a: Camera icon, 111b, 112b, 121b, 122b: Camera selection button, 131-134: Encoder, 140: Anemometer, 150 : Network, 160: Monitoring terminal, 161: Operation screen, 162: Video display area,
163: Surveillance camera installation display area, 164: Operation button display area, 165: Pan head operation button, 166: Zoom magnification change button, 167: Weather information display area, 168: Camera display area, 170: Control server, 171: Preset Information table,
172: Weather information memory, 173: Map information memory, 174: Head operation processing unit, 175: Infrared camera image memory, 176: Infrared camera image processing unit, 177: Fire spread direction prediction processing unit, 179: Control unit, 181: Fire button, 182: negative button, 201, 201a to 202e: preset area, 601: monitoring terminal.

Claims (6)

1. A monitoring area divided into a plurality of preset areas, an infrared camera unit that performs a preset operation for imaging a predetermined preset area and transmitting the captured infrared image, and an area of a specified position coordinate A fire detection system comprising: a visible camera unit that transmits visible video; a monitoring terminal that is monitored by a supervisor; and a control device that controls the infrared camera unit, the visible camera unit, the weather observation meter, and the monitoring terminal. There,
   The infrared camera unit is configured to perform a preset movement of the predetermined preset area at a predetermined cycle under the control of the control device, and to transmit an imaged infrared image;
   The visible camera unit changes a pan angle, a tilt angle, and a zoom magnification, captures an area of a position coordinate specified by the control device, transmits a captured visible image,
   The monitoring terminal displays the infrared image and the visible image transmitted from the control device, the map information of the infrared camera unit and the visible camera unit on the display unit, and when the fire button is pressed or the negative button is pressed In the fire detection system, the investigation result is transmitted to the control device.
2. The fire detection system according to claim 1, further comprising a meteorological observation device for observing weather information,
   The meteorological observation instrument observes the weather condition of the installation location,
   The control unit predicts a fire spread direction based on weather information observed by the meteorological observation meter, and displays a fire spread prediction result on the display unit.
3. The fire detection system according to claim 1, wherein the control device restarts the preset operation of the infrared camera unit when a negative button is pressed as an operation result from the monitoring terminal.
4. Of the monitoring areas divided into a plurality of preset areas, image the predetermined preset area, perform a preset operation to transmit the captured infrared image to the control device,
   When a fire is detected by image processing, a visible image is captured of the position where the fire is detected, and at least one of weather information received from a weather station, a meteorological satellite, or an external organization is used. Predicting the fire spread direction, and sending the display image displaying the predicted fire spread direction on the map indicating the monitoring area together with the visible image to the monitoring terminal,
   A fire detection method, wherein the visible video and the display image are displayed on the monitoring terminal.
5. 5. The fire detection system according to claim 4, wherein a fire spread direction is predicted based on the acquired weather information and a fire spread prediction result is displayed.
6. When it is determined that the fire is based on the visible video and the display image, the preset operation of the camera that acquired the infrared video is stopped, and when it is determined that the camera is not a fire, A fire detection method, wherein the preset operation is resumed.

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