JP2000333160A - Device for grasping situation of fire site - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a commanding vehicle to grasp a state of a fire immediately before fire fighters conducting fire fighting activities as an image by a simple and inexpensive means and to allow even a direction center of a fire station to grasp the state. SOLUTION: A small-sized video camera 20 mounted on a helmet 18 of a fire fighter 10 photographs a same direction as a sight line of the fire fighter. A spread spectrum SS radio transmitter 22 adopting specified low power radio communication system transmits an image signal of the camera 20 to an SS radio receiver 24 mounted on a commanding vehicle 12, and an image display device 26 displays the image. Moreover, a 1st mobile phone terminal 44 transmits the image signal received by the SS radio receiver 24 to a 2nd mobile phone terminal 46 installed in a directing center 14, and an image display device 50 displays the image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus capable of grasping the situation of a fire spot in real time on a command vehicle dispatched to the spot or at a central command station such as a fire department in real time.

[0002]

2. Description of the Related Art When a fire engine is dispatched to a fire site and firefights, a firefighter who directly performs firefighting activities and a fire commander who directs the entire firefighting activities are often far apart. Commanders and firefighters typically communicate by voice. In addition, since the fire site is far from the central command center of the fire department, it is common that the central command center and the commander of the fire site communicate by voice communication.

[0003]

[Problem to be Solved by the Invention] Since the fire commander usually does not go to the forefront of the fire scene and takes command behind, the firefighter can accurately grasp the situation of the fire that he is witnessing There are things you can't do. For this reason, there is a problem that the command issued by the commander to firefighters is not accurate or delayed.

In order to improve this point, it is conceivable to mount a device for displaying an image of a fire spot on a command vehicle so that the commander issues a command while watching the image. For that purpose, it is necessary to install a video camera near the fire site in advance and lay a dedicated image line from there to the command vehicle and transmit the image, or transmit the image by wireless communication. However, laying a dedicated line is time-consuming and labor-intensive, so it is not suitable for emergency firefighting activities.In order to implement the wireless communication method, it is necessary to apply for and obtain a license for a radio band of a specific frequency. This is not only difficult to realize as a practical problem, but also increases the cost.

[0005] On the other hand, there is a similar problem between the central command post and the command vehicle at the fire site. If images of the fire site can be obtained in real time at the Central Command Office, it is possible to quickly carry out support measures according to the conditions of the site, but for that purpose it is necessary to apply for and obtain a license for the radio band as described above In addition to the above, there is a problem that an additional person must be dispatched to the fire scene for image capturing.

Accordingly, a first object of the present invention is to make it possible to grasp a fire situation in front of a firefighter who is directly involved in a fire fighting operation with an image on a command vehicle by a simple and low-cost means. A second object of the present invention is to make it possible to grasp the situation of a fire site in an image at a central command center by a simple and low-cost means and without troublesome work at the fire site.

[0007]

In order to achieve the first object, a fire scene situation grasping device according to the present invention is mounted on a fireman's helmet so as to photograph in the same direction as the fireman's gaze. A small-sized video camera and a specific low-power SS radio (spread-spectrum wireless communication system) that the fireman wears and transmits an image signal captured by the camera
A transmitter, a specific low-power SS radio receiver mounted on a command vehicle that goes to the scene of a fire and receiving an image signal from the transmitter, and an image signal mounted on the command vehicle and received by the receiver And a display device for displaying the image as an image (claim 1). Note that the mobile phone terminal referred to in this specification includes a PHS terminal.

[0008] In order to achieve the second object, the present invention further provides a first apparatus for transmitting an image signal mounted on the command vehicle and received by the SS radio receiver to a central command office. A mobile phone terminal, a second mobile phone terminal installed at the central command office and receiving an image signal from the first mobile phone terminal, and the second mobile phone terminal installed at the central command office A display device for displaying a received image signal as an image is added (claim 2).

According to another aspect of the present invention, there is provided a fireplace situation monitoring apparatus according to the present invention, comprising: a head mounted on a fire engine; a video camera mounted on the head; A control device for controlling a platform and a video camera, and transmitting an image signal mounted on the fire engine and photographed by the video camera to a central command office, and receiving a control signal for a pan head and a video camera from the central command office. A first mobile phone terminal for inputting to the control device, and an image signal from the first mobile phone terminal installed at the central command office and receiving control signals for the camera platform and the video camera. A second mobile phone terminal that transmits the image signal received by the second mobile phone terminal to the second mobile phone terminal, and a display device that is installed at the central command office. And it is characterized in that it comprises an operating device for creating a control signal of the pan head and the video camera Te (claim 3).

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. [Embodiment 1] FIG. 1 shows an embodiment of the present invention (corresponding to claims 1 and 2). In the figure, 10 is a firefighter who performs a fire fighting operation at the front line of a fire site, 12 is a command vehicle on which a commander who takes command of the entire fire site rides, and 14 is a central command station in a fire station 16.

A small video camera 20 is mounted on the helmet 18 of the firefighter 10 so as to photograph the firefighter 10 in the same direction as the line of sight. As the small-sized video camera 20, a board / lens-integrated board camera in which a lens is attached to a printed wiring board on which a CCD is mounted (also referred to as a core camera)
Is preferred in order to reduce the size, weight, and cost.

The firefighter 10 also has a specific low power SS radio transmitter 22 for transmitting an image signal obtained by the small video camera 20.
To carry. On the other hand, the command vehicle 12 includes an SS radio receiver 24 of a specific low power for receiving an image signal from the SS radio transmitter 22 and a display device 26 for displaying the image signal received by the receiver 24 as an image. Mount. The use of a TFT liquid crystal monitor as the display device 26 is
It is preferable in reducing power consumption and cost.

The SS radio adopted here is a communication system in which a sender and a receiver spread information on a frequency axis according to a certain rule and transmit the information. For this reason, a band wider than that of general radio is required. Conversely, even if information of a certain frequency is lost due to noise or the like, information of another frequency survives. Advantages are that communication is possible, and transmission and reception cannot be performed unless the algorithm spreading on the frequency axis matches, so that confidentiality is higher than that of general wireless communication. In addition, the SS radio with a specific low power does not require a license application and acquisition of a radio band of a specific frequency, so that it can be inexpensively commercialized.

FIG. 2 shows the SS radio transmitter 22 and the receiver 24.
The following shows a specific configuration example. The SS radio transmitter 22 modulates an image signal (digital) from the small video camera 20 with a modulator 28 and puts it on a spectrum of a certain frequency. Diffuser
At 30, in order to distinguish this spectrum from signals from other small video cameras, the P
An N code (Pseudo Noise Code, pseudo noise code) is added, spread horizontally on the frequency axis (spread spectrum), and transmitted by radio. In the SS radio receiver 24, the received radio wave is restored by the despreader 34 using the same PN code as that on the transmitting side created by the PN code generator 36. At this time, unnecessary waves such as interference waves are diffused, so that only necessary waves remain after passing through the filter 38. This wave is returned to the original digital signal by the demodulator 40 and sent to the display device 26.

With the above structure, the firefighter 10 busy with the firefighting activities does not bother the firefighters 10 and does not restrict the range of action of the firefighters 10. The image can be displayed on the display device 26 of the command vehicle 12. Accordingly, the commander can issue a command accurately and quickly while checking the image on the display device 26.

In this embodiment, a first modem 42 and a first portable telephone terminal for transmitting an image signal received by the SS radio receiver 24 to the central command office 14 are also provided to the command vehicle 12.
Along with the 44, the central command office 14 displays a second mobile phone terminal 46 and a second modem 48 for receiving the image signal from the first mobile phone terminal 44, and the received image signal as an image. The display device 50 is installed. Mobile phone terminal
It is preferable to use PHS terminals as 44 and 46.
By using the mobile phone terminals 44 and 46 in this way,
Without having to apply for or obtain a license for a specific frequency radio band, the image of the fire site obtained with the command vehicle 12 can be obtained from the Central Command 14
Can be transferred to Thus, while viewing the same image as the commander in command at the fire site, the Central Command 14 can consider appropriate support measures for the fire site.

[Embodiment 2] FIG. 3 shows another embodiment of the present invention (corresponding to claim 3). In the figure, reference numeral 52 denotes a fire engine (can be a command vehicle or another fire engine) to be dispatched to a fire site, and reference numeral 14 denotes a central command station in the fire station 16.

A pan head 54 is mounted on the roof of the fire engine 52, and a video camera 56 is mounted on the pan head 54 in a state of being stored in a protective case 58. The video camera 56 is capable of zoom adjustment and focus adjustment. The focus adjustment may be automatic. The camera platform 54 includes a horizontal rotating unit 54A that changes the horizontal direction of the video camera 56, and an up-down rotating unit 54B that changes the vertical direction. The fire truck 52 is equipped with a control device 60 for controlling the camera platform 54 and the video camera 56, a first modem 42 for communicating with the central command office 14, and a first mobile phone terminal 44. I have.

On the other hand, the central command office 14 has a second portable telephone terminal 46 and a second modem 48 for communicating with the fire engine 52 and a display for displaying an image taken by a video camera 56. A display device 26 and an operation device 62 for remotely controlling the camera platform 54 and the video camera 56 are provided. Operation device
Reference numeral 62 denotes a camera platform operation unit 64 for adjusting the horizontal rotation angle and vertical rotation angle of the camera platform 54, and a camera operation unit 66 for adjusting the zoom and focus of the video camera 56. If the focus adjustment of the video camera 56 is automatic, the camera operation
Can be omitted. The camera platform operation unit 64 and the camera operation unit 66 can be configured by, for example, a joystick-type operation lever.

An image signal photographed by the video camera 56 passes through the control device 60, the first modem 42, the first portable telephone terminal 44, the second portable telephone terminal 46, the second modem 48, and then the display device 26.
Will be displayed. On the other hand, the headquarters 14 performs a pan head operation and a camera operation with the operation device 62 while viewing the image on the display device 26. That is, the horizontal rotation signal, the vertical rotation signal, and the zoom adjustment signal and the focus adjustment signal created by the operation of the camera operation unit 66 are generated by the operation of the camera platform operation unit 64. Mobile phone terminal 46, first mobile phone terminal 4
4. It is sent to the control device 60 via the first modem 42. The control device 60 controls the horizontal rotation of the head 54 based on these signals.
54A, controls the vertical rotation unit 54B and video camera
Perform 56 zoom and focus adjustments.

With the above configuration, the central command office 14
In, the video camera 56 on the fire truck 52 can be pointed in an arbitrary direction to grasp the situation of the fire site in detail without bothering the firefighters who have been dispatched to the fire site. Therefore, it is possible to quickly execute a support measure according to the situation at the fire site. Since the transmission and reception of signals between the fire truck 52 and the central command office 14 are performed by the mobile phone terminals 44 and 46, the system can be configured at low cost without requiring a license application and acquisition of a radio frequency band of a specific frequency.

[0022]

As described above, according to the first aspect of the present invention, a fire scene photographed by a small video camera can be taken without trouble of the firefighter and without restricting the range of action of the firefighter. The image can be displayed on the display device of the command vehicle. Therefore, the commander can issue a command accurately and quickly while watching the image, and can efficiently carry out fire fighting activities. In addition, by using the SS radio with specific low power for transmission from the small video camera to the command vehicle, there is no need to apply for and obtain a license for the radio band of the specific frequency, so the system can be configured at low cost and easy to put into practical use. It is.

According to the second aspect of the present invention, the image of the fire site obtained by the command vehicle can be transferred to the central command center. Appropriate support measures for fire sites can be considered. In addition, since the mobile phone terminal is used for communication between the command vehicle and the central command office, it is not necessary to apply for and obtain a license for a radio frequency band of a specific frequency, so that the system can be configured at low cost and practical application is easy.

According to the third aspect of the present invention, the video camera mounted on the fire truck can be turned in any direction at the central command center without any trouble of the firefighter who has been dispatched to the fire site. The situation can be understood in detail. Therefore, it is possible to quickly examine a support measure according to the situation at the fire site. In addition, by using a mobile phone terminal for communication between the fire engine and the Central Command Office, there is no need to apply for and obtain a license for a specific frequency radio band, so the system can be configured at low cost and practical application is easy. .

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of an apparatus according to the present invention.

FIG. 2 is a block diagram showing a specific example of an SS wireless transmitter and a receiver in the apparatus of FIG.

FIG. 3 is an explanatory view showing another embodiment of the device according to the present invention.

[Explanation of symbols]

 10: Firefighter 12: Command car 14: Central command post 16: Fire department 18: Helmet 20: Small video camera 22: SS radio transmitter 24: SS radio receiver 26: Display device 42: First modem 44: First Mobile phone terminal 46: second mobile phone terminal 48: second modem 50: display device 52: fire engine 54: pan head 56: video camera 58: protective case 60: control device 62: operating device 64: pan head Operation unit 66: Camera operation unit

Continued on the front page F term (reference) 5C022 AB62 AB65 AC00 AC01 AC27 AC31 5C054 AA02 AA05 CA04 CC02 CE02 CF06 CF08 CG08 CH01 DA07 DA09 EA01 EA03 EA05 FA02 FA09 HA20 5K067 AA21 BB04 DD51 EE02 EE06 FF02 FF23

Claims (3)

[Claims] 1. A small video camera mounted on a firefighter's helmet so as to shoot in the same direction as the firefighter's line of sight, and a specific low-power device worn by the firefighter and transmitting an image signal shot by the camera. SS wireless (spread spectrum wireless communication system) transmitter, a specific low-power SS wireless receiver mounted on a command vehicle that goes to the scene of a fire and receiving an image signal from the transmitter, and mounted on the command vehicle A display device for displaying an image signal received by the receiver as an image. 2. The apparatus according to claim 1, further comprising: a first mobile phone terminal mounted on said command vehicle and transmitting an image signal received by said SS radio receiver to a central command center; A second mobile phone terminal that is installed and receives an image signal from the first mobile phone terminal, and a display that is installed at a central command office and displays an image signal received by the second mobile phone terminal as an image A device for grasping the situation at a fire site, characterized by adding a device. 3. A head mounted on a fire engine, a video camera mounted on the head, a control device for controlling the head and the video camera, and an image taken by the video camera mounted on the fire engine. While transmitting the image signal to the central command post, the first mobile phone terminal to receive the control signal of the camera platform and the video camera from the central command post and input to the control device, the first mobile phone terminal installed in the central command post, A second mobile phone terminal for receiving an image signal from the first mobile phone terminal and transmitting a control signal of the camera platform and the video camera to the first mobile phone terminal, and a second mobile phone terminal installed at a central command office, A display device for displaying an image signal received by the second mobile phone terminal as an image, and an operation device installed at a central command office to create control signals for the camera platform and the video camera. Situational awareness apparatus of a fire that.