JP2003296836A - Fire alarm facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To speedily take measures in accordance with circumstances by confirming a site where a fire broke out even without rushing to the site. <P>SOLUTION: In the fire alarm facility provided with a plurality of fire sensors for detecting a fire phenomenon and outputting detected information and a fire information receiver to which the information from the plurality of fire sensors is inputted for discriminating the states of the respective fire sensors and displaying the states on a first display part, each of the fire sensors is a fire sensor with a camera, and the fire information receiver displays the video photographed by the fire sensor with the camera on the first display part. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm system equipped with a plurality of fire detectors and a fire receiver.

[0002]

2. Description of the Related Art When a fire occurs in a certain security area in a building, the address of the fire occurrence area and the fire detector that issued the alarm are displayed on the display of the fire receiver. At this time, the manager rushed to the area where the fire broke out, checked the general conditions around the fire detector that issued the alarm, and took various actions such as evacuation guidance in the event of a fire and recovery work in the event of a false alarm.

[0003]

As described above, the manager is
Since I rushed to the fire area and checked the general conditions around the fire detector that issued the alarm, various responses such as evacuation guidance in case of a fire and recovery work in case of a false alarm were slow.

The present invention relates to a fire alarm system equipped with a plurality of fire detectors and a fire receiver, and can confirm the fire occurrence site without rushing to the site and can quickly respond to the situation. With the goal.

[0005]

SUMMARY OF THE INVENTION The present invention includes a plurality of fire detectors for detecting a fire phenomenon and outputting the detected information,
A fire alarm system comprising: a fire receiver that receives information from the plurality of fire detectors, determines the state of each fire detector, and displays the state on the first display unit. The device is a camera-equipped fire detector, and the fire receiver displays an image photographed by the camera-equipped fire detector on the first display unit.

Further, the fire receiver includes a first operation section, and the first operation section specifies each of the camera-equipped fire detectors for taking an image displayed on the first display section, and ,
The direction of the image taken by the fire detector with the camera is changed.

The fire detector with camera outputs the detected information as analog value data, and the fire receiver receives the analog value data from the fire detector with camera and the plurality of preset cameras. Based on the information of the attached fire detector, determine the status of each camera attached fire detector,
An image taken by the fire detector with a camera that has reached a certain discrimination level is displayed on the first display unit.

Further, the fire receiver includes a line connection section capable of bidirectional communication with a mobile phone, and displays the display content displayed on the first display section on the second display section of the mobile phone. .

Further, the portable telephone is provided with a second operation section, and the second operation section designates each fire detector with camera for photographing the image displayed on the first display section, and ,
The shooting direction of the image taken by the fire detector with the camera is changed.

Further, the fire detector with a camera is a smoke detector having a smoke inflow window provided in a lateral direction, and includes a motor provided on the bottom side and a rotary plate pivotally supported by a rotation shaft of the motor. A camera obliquely attached to the rotary plate so that its viewing angle is directed to the lateral direction of the smoke detector while including the central axis of the smoke detector, and a cover for protecting the camera. I have it. In addition, the fire detector with a camera,
A heat detector, a motor provided on the bottom side, a rotating plate pivotally supported by a rotation shaft of the motor, and a side surface of the heat detector having a viewing angle including a central axis of the heat detector. The camera has a camera that is attached to the rotary plate so as to be inclined, and a cover that protects the camera, and the tip of the thermistor is located below the cover.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram illustrating a fire alarm facility. The fire alarm system 1 includes a plurality of camera-equipped fire detectors 10, a fire receiver 20, and a mobile phone 30. The fire detector 10 with a plurality of cameras and the fire receiver 20 are connected to the signal line L1,
It is connected via the video line L2. The fire receiver 20 and the mobile phone 30 are connected when necessary via a base station (not shown).

The camera-equipped fire sensor 10 detects a fire phenomenon and outputs the detected information. For example, physical quantity information based on a fire such as smoke or heat is converted into analog value data (eg, digitized data). Output as analog data), for example, a smoke detector 10A described later.
(FIG. 2) and heat sensor 10B (FIG. 3).

The fire detector with camera 10 comprises a main control unit 11, a fire detection unit 12, an address setting unit 13, a signal transmission unit 14, a camera 15, a rotating unit 16 and a transmission circuit 17.

The main controller 11 controls the entire fire detector with camera 10. The fire detection unit 12 outputs information on a physical quantity based on a fire such as smoke or heat. The address setting unit 13 sets an address of the fire detector with camera 10, and an individual address AD is set for each fire detector with camera 10. The signal transmission unit 14 uses the signal line L1.
Various signals are transmitted to and received from the fire receiver 20 via the.
The camera 15 photographs the warning area in which the fire detector with camera 10 is provided, and the photographed image is output as a video signal and displayed on the display unit 22 of the fire receiver 20. The rotating unit 16 rotates the direction of the camera 15 according to a control command from the fire receiver 20 to change the image capturing direction (viewing direction of the camera 15) of the caution area captured by the camera 15. The transmission circuit 17 transmits various video signals to the fire receiver 20 via the video line L2.

A smoke detector 10A and a heat detector 10B as examples of the fire detector with camera 10 will be described with reference to FIGS. 2 and 3. First, the smoke detector 10A will be described with reference to FIG. The smoke detector 10A is obtained by adding a camera 15, a rotation unit 16, and a transmission circuit 17 to a known smoke detector.

The smoke sensor 10A includes a circuit board 1 in a casing 101 having a main control unit 11, an address setting unit 13, a signal transmission unit 14, and a transmission circuit 17 shown in FIG.
14 is provided. Further, in the housing 101, the fire detection unit 12 including a substantially cylindrical smoke detection chamber 113 and the like in which the light emitting element 111 and the light receiving element 112 are arranged to intersect with each other.
Are fixed to the circuit board 114. The fire detection unit 12 outputs information on the physical quantity of smoke that has flowed in through the smoke inflow window 115 arranged in a substantially cylindrical shape. On the substantially circular bottom surface 102 of the housing 101, a motor 103 for configuring the rotating portion 16 is arranged along the outer wall of the smoke detection chamber 113 so as not to affect the smoke sensing performance, for example, not shown. It is electrically connected to the circuit board 114 by wiring, and
The rotary shaft 104 is used as the central axis M1 of the smoke detector 10A, and is attached and fixed by fitting or the like. The center of the substantially circular rotary plate 105 is supported by the rotary shaft 104. The camera 15 is connected to the circuit board 114 by wiring (not shown) arranged along the outer wall of the smoke detection chamber 113 so as not to affect the smoke detection performance, and is attached to the peripheral portion of the rotary plate 105. And its viewing angle θ
Is inclined and fixed to the rotary plate 105 so as to face the side direction of the smoke detector 10A while including the central axis M1. The camera 15 captures a warning area within the viewing angle θ. In addition, as the motor 103 rotates, the camera 15
Makes it possible to photograph a wide range of the warning area directly below the smoke sensor 10A around the central axis M1. Since the camera 15 is attached to the smoke sensor 10A as described above, the position and size of the flame can be directly determined by the display unit 22 in the image captured at the viewing angle θ. Motor 1
03, the rotary plate 105, and the camera 15 are provided inside a dome-shaped cover 107 that is fixedly attached to the bottom surface 102, thereby preventing and protecting dust from entering.

The motor 103, the camera 15 and the like are provided on the bottom surface 102 side so as not to affect the inflow of smoke into the smoke detection chamber 113 from the smoke inflow window 115 formed in the side direction. The detector 10A can photograph a wide range of the warning area immediately below the smoke detector 10A without impairing the smoke detection performance.

Next, based on FIG. 3, the heat detector 10B
The structure will be described, but only the differences from the smoke detector 10A will be described. The thermistor 120 as an example of the fire detection unit 12 outputs information on the physical quantity of heat, and its base end side is fixedly attached to the circuit board 114 in FIG. 1 so that its front end side does not affect the heat detection performance. Is projected from the bottom surface 102 side, and the central axis M1
So as to be located at the lower side, protruding from the cover 107 and located at the lower side. By disposing the thermistor 120 in this manner, the camera 15 can capture a wide range of the caution area immediately below the heat sensor 10B without deteriorating the heat detection performance of the heat sensor 10B.

The smoke detector 10A and the heat detector 10B
However, a fish-eye lens may be attached to the front surface of the camera 15 to display a wide viewing angle such as 360 ° on the display unit 22 of the fire receiver 20.

Returning to FIG. 1, the fire receiver 20 includes a main control unit 21, a display unit 22 as a first display unit, a data storage unit 23, a signal transmission unit 24, a receiving circuit 25, and a first operation unit. The operation unit 26 and the line connection unit 27 are provided.

The main controller 21 controls the entire fire receiver 20. The display unit 22 is, for example, an LCD, and displays character information such as normal information and fire information, which will be described later, and an image (image information) captured by the camera 15 of the camera-equipped fire detector 10. When a fire occurs, the fire alarm information (text information) such as the address AD and the warning area N of the fire alarm with camera 10 issued is displayed in characters, and the fire information is captured by the camera 15 of the fire alarm with camera 10 issued. The displayed image is displayed over the text information.

The data storage unit 23 has an address assigned to each fire detector 10 with a camera so that the fire receiver 20 can monitor and control the fire detector 10 with a camera connected to the signal line L1. The detector type ID, the pre-level SP, the fire discrimination level SF, the warning area N, and the like are stored in contrast for each AD. The signal transmission unit 24 transmits and receives various signals to and from the fire detector with camera 10 via the signal line L1. The receiving circuit 25 receives various video signals from the fire detector with camera 10 via the video line L2.

The operation unit 26 includes a camera-on switch OS,
It is composed of various input switches such as a numeric keypad TK and a direction key HK. When the camera-on switch OS is turned on, the main control unit 21 causes the ten-key TK and the direction key HK.
The input by is valid.

When the camera ON switch OS is turned on and the address AD of the fire detector with camera 10 is input by the ten-key TK, the image of the camera 15 of the fire detector with camera 10 designated by the address AD is displayed on the display unit 22. Is displayed.
Then, the direction key HK is used to rotate the camera 15 via the rotating unit 16 to change the shooting direction of the caution area imaged by the camera 15. In addition, the main control unit 21
Turns on the camera-on switch OS to preferentially process the operation input of the operation unit 26 on the fire receiver 20 side,
By turning off, it becomes possible to process the operation input of the operation unit 36 on the mobile phone 30 side.

The line connection unit 27 performs the function of a general subscriber telephone terminal, performs bidirectional communication with the mobile telephone 30 via an antenna of a base station (not shown), and transmits and receives various control signals and various video signals.

The mobile phone 30 includes a main control section 31 and a second control section.
Is provided with a display unit 32 as a display unit, a telephone number setting unit 33, an operation unit 36 as a second operation unit, and a line connection unit 37.

The main controller 31 controls the entire mobile phone 30. The display unit 32 is, for example, an LCD, and can display the display content of the display unit 22 of the fire receiver 20. When a fire occurs, the display content (character information and video information) on the display unit 22 is displayed by a display command from the fire receiver 20. The address setting unit 23 sets the telephone number ADX of the mobile phone 30.

The operation unit 36 is a camera-on switch OS.
It is composed of various input switches such as X, numeric keypad TKX, and direction key HKX. The camera on switch OSX is
When turned on, the display content of the display unit 22 of the fire receiver 20 is displayed on the display unit 32. Also, by turning it on,
The same operation as the operation unit 26 of the fire receiver 20 can be performed. That is, when the camera ON switch OSX is turned on and the address AD of the fire detector with camera 10 is input with the ten-key TKX, the image of the camera 15 of the fire detector with camera 10 designated by the address AD is displayed on the fire receiver 20.
Is displayed on the display unit 22. The direction key HKX is used to rotate the camera 15 via the rotating unit 16 to change the photographing direction of the caution area photographed by the camera 15. Then, in accordance with the display command of the fire receiver 20, the line connection unit 37
The display contents (character information and video information) of the display unit 22 are displayed on the display unit 32 via the. The fire receiver 20
The function of the operation unit 36 may be substituted by an existing button used for a call or the like, without providing the operation unit 36 dedicated to the operation.

The line connection unit 37 functions as a radio telephone terminal and transmits / receives various control signals and various video signals to / from the fire receiver 20 via an antenna of a base station (not shown).

Next, the operation of the fire receiver will be described with reference to the flowchart of FIG. In normal condition,
The fire receiver 20 displays "normal monitoring" or the like (character information as normal information) on the display unit 22. The fire receiver 20 uses a polling method to detect fires with cameras 1
The control signal "address AD / return command" that calls 0
The signal is transmitted to the signal line L1 via the signal transmission unit 24. The fire detector with camera 10 corresponding to the address AD responds to this control signal via the signal transmission unit 14, and sends a return signal "address AD / analog data" to the signal line L1. Then, the fire receiver 20 receives the return signal, and monitors the state of each fire detector with camera 10 based on the analog data by the comparison table of the data storage unit 23 (S1). The operation in step S1 is performed for all the fire detectors 10 with a camera.

If the analog data of the fire detector with camera 10 is not higher than the pre-level SP and the fire discrimination level SF (S2), it is confirmed whether or not the camera-on switch OS is turned on, and if it is not turned on (S3). , Mobile phone 30
It is confirmed whether the camera-on switch OSX of is turned on, and if it is not turned on (S4), the process returns to step S1.

When the analog data of the fire detector with camera 10 is judged to be a fire at the pre-level SP or the fire discrimination level SF or higher (S2), the fire flag is turned on (S1).
0), for example, character information as fire information such as "fire sensor alert caution (or fire detector alert) -address-AD number-type-ID-fire occurrence area-N area"
Is displayed on the screen (S11). The main control unit 21 transmits the control signal “address AD / video signal transmission command” to the fire detector with camera 10 that is determined to be a fire through the signal transmission unit 24 to the signal line L1 (S12). In response to this control signal, the fire detector with camera 10 corresponding to the address AD responds via the signal transmission unit 14, the image of the caution area photographed by the camera 15 is used as a video signal, and the return signal “address AD "Video signal" is transmitted to the video line L2 via the transmission circuit 17. Then, the fire receiver 20 receives the return signal, and the display unit 22 displays the image (image information) of the caution area photographed by the camera 15 on the fire information in an overlapping manner with the fire information by the return signal (S13).

Further, the main control unit 21 uses the video information and fire information of the display unit 22 as compressed data and sends a control signal "telephone number ADX / display command (compressed data)" to the mobile phone 40 to the line connection unit 27. Is transmitted to a base station (not shown) through (S14), and the process proceeds to step S3. At this time, the mobile phone 30 corresponding to the telephone number ADX responds to this control signal via a base station (not shown) and the line connection unit 37, decompresses the compressed data, and the display unit 32 displays a fire receiver. The display contents (video information, fire information) on the display unit 22 of 20 are displayed.

Next, an administrator in the vicinity of the fire receiver 20 displays an image of the camera 15 of the fire detector with camera 10 on the display unit 22 or is photographed by the camera 15 of the fire detector with camera 10. A case where the shooting direction of the caution area is changed will be described.

The administrator operates the operation unit 26 as necessary.
In order to display the video information on the display unit 22 (similarly when it is already displayed), the camera on switch OS is turned on, the address AD of the fire detector with camera is input from the ten key TX, and the direction key HK. An input for rotating the rotating unit 16 is performed.

That is, when the camera on switch OS is turned on (S3), the main control section 21 causes the ten key T
Based on the input of the address AD from X and the input of rotating the rotating unit 16 from the direction key HK, the control signal “address AD / video signal sending command / rotating unit control command” is sent to the fire detector with camera 10. , The signal line L via the signal transmission unit 24
1 (S20). In response to this control signal, the fire detector with camera 10 corresponding to the address AD responds via the signal transmission unit 14, rotates the rotating unit 16, and the warning area photographed by the rotated camera 15. Is used as a video signal, and a return signal "address AD / video signal" is sent to the video line L2 via the transmission circuit 17. Then, the fire receiver 20 receives the return signal, and by the return signal,
The image (image information) of the caution area photographed by the camera 15 is displayed on the display unit 22 so as to be superimposed on the character information (S2).
1).

If the fire flag is off (S2
2) The process proceeds to step S24, and if it is turned on, the main control unit 21 uses the display contents (video information, character information) of the display unit 22 as compressed data to send a control signal "telephone number ADX / display command" to the mobile phone 30. (Compressed data) ”is transmitted to a base station (not shown) via the line connection unit 27 (S2
3), the process proceeds to step S24. At this time, the mobile phone 30 corresponding to the telephone number ADX responds to this control signal via a base station (not shown) and the line connection unit 37,
The compressed data is decompressed and the display content of the display unit 22 of the fire receiver 20 (video information, fire information) is displayed on the display unit 32.

If the camera on switch OS is not turned on (S24), the process proceeds to step S4, and if it is turned on (S24), the process returns to step S1. As a result, the operation unit 26 is operated through steps S1 to S3.
Fire detector 10 with each camera is repeatedly operated by
The camera 15 can be operated.

Next, the carrier of the mobile phone 30 displays the display contents displayed on the display unit 22 on the display unit 32,
A case will be described in which the shooting direction taken by the camera 15 of each camera-equipped fire detector 10 is changed.

The carrier of the mobile phone 30 causes the display contents of the display unit 22 to be displayed on the display unit 32 (similarly when it is already displayed).
Press SX, enter the address AD of the fire detector with camera 10 from the numeric keypad TKX, if necessary, and press the direction key H.
Input is made to rotate the rotating unit 16 from KX.

As a result, the main control section 31 sends a control signal "telephone number ADX / display content transmission command (address AD / video signal transmission command / rotating section control command, if necessary)" to the fire receiver 20. To the base station (not shown) via the line connection unit 37, the fire receiver 20 receives this control signal via the line connection unit 27, and RA
Store in M.

Therefore, if the camera on switch OSX is turned on in step S4, RA (not shown) is shown.
Judging based on M (S4), if there is no input from the ten-key TKX or direction key HKX (S3).
0), the process proceeds to step S33, and if there is (S30),
The main control unit 21 receives the address A from the numeric keypad TKX.
Based on the input of D and the input of rotating the rotating unit 16 from the direction key HKX, the control signal “address AD / video signal sending command / rotating unit control command” is sent to the fire detector with camera 10.
Is transmitted to the signal line L1 via the signal transmission unit 24 (S31). In response to this control signal, the fire detector with camera 10 corresponding to the address AD responds, rotates the rotating portion 16, and the image of the caution area photographed by the rotated camera 15 is used as a video signal and returned. The signal “address AD / video signal” is transmitted to the video line L2 via the transmission circuit 17. And the fire receiver 20 receives the return signal,
In response to the return signal, the image (image information) of the caution area photographed by the camera 15 is displayed on the display unit 22 while being superimposed on the character information (S32).

Further, the main control section 21 uses the display contents (video information, character information) of the display section 22 as compressed data.
A control signal "telephone number ADX / display command (compressed data)" to the mobile phone 30 is transmitted to a base station (not shown) via the line connection unit 27 (S33), and the process returns to step S1.
At this time, the mobile phone 30 corresponding to the telephone number ADX responds to this control signal via a base station (not shown) and the line connection unit 37, decompresses the compressed data, and displays the contents displayed on the display unit 22 ( The image information and the character information) are displayed on the display unit 32.

In step S3, if the camera-on switch OS of the fire receiver 20 is turned on, the fire receiver 20 does not execute the control signal on the side of the mobile phone 30, but the fire receiver 20 does not execute the control signal. When the fire receiver 20 does not execute the control signal from the telephone 30, the character information such as "The fire receiver is controlling the camera. Please wait for a while." May be displayed on the display unit 32. .

After the fire is processed, the fire receiver 20 and the portable telephone 30 receive a recovery instruction from a recovery button (not shown) provided on the operation sections 26 and 36 of the fire receiver 2.
By inputting 0, the fire flag is turned off by the interrupt processing to the flowchart shown in FIG.

The fire receiver 20 includes an operation unit 26 such as an administrator.
By operating the, the fire detector 10 with each camera is displayed on the display unit 22.
It is possible to display an image taken by the camera 15 of. During a normal time when no fire has occurred, the operation unit 26 is operated to specify each of the camera-equipped fire detectors 10 to change the shooting direction of the caution area shot by the camera 15 and display the image thereof. Can be displayed on. This allows the manager to check the current state of the building without having to visit it. It should be noted that it is more effective to automatically switch the designation of each of the camera-equipped fire detectors 10 and display the image on the display unit 22, which also serves as a crime prevention system.

When a fire occurs, first, an image taken by the fire detector with camera 10 which is judged to be a fire is displayed on the display unit 2.
It is displayed in 2. With this, the manager can confirm the fire occurrence site without rushing to the site, and can promptly respond to the situation. In addition, the operation unit 2 such as a manager
By operating 6, the fire detector with camera 10 can be designated, the shooting direction of the warning area shot by the camera 15 can be changed, and the image can be displayed on the display unit 22. An image taken by the camera 15 of the camera-equipped fire detector 10 can be displayed to confirm the expansion situation of the fire occurrence site. It is also effective for tracking suspicious persons during arson.

In the mobile phone 30, the display section 32 of the fire receiver 20 is displayed on the display section 32 by the operation of the operation section 36 by a carrier or the like.
The display content of can be displayed. During a normal time when no fire occurs, the operation unit 36 is operated to specify each of the camera-equipped fire detectors 10 to change the shooting direction of the warning area to be shot by the camera 15 and display the image thereof.
By displaying it on the display unit 32, it can be displayed on the display unit 32. Thereby, the wearer can confirm the display content of the display unit 22 of the fire receiver 20 and the current state of the building even if the carrier is away from the fire receiver 20.

When a fire occurs, the display content of the display unit 22, that is, the image photographed by the fire detector with camera 10 which is determined to be a fire is automatically displayed on the display unit 32.
With this, the carrier can confirm the fire occurrence site without rushing to the site, and can quickly respond to the situation. In addition, by the operation of the operation unit 36 by a carrier or the like,
By designating each camera-equipped fire detector 10, the shooting direction of the caution area photographed by the camera 152 can be changed and the image can be displayed on the display unit 32. The camera-equipped fire detector near the fire occurrence site can be displayed. Even if the image taken by the camera 15 of 10 is displayed and the fire receiver 20 is distant from the side, the display content of the display unit 22 of the fire receiver 20 can be confirmed and the current state of the building can be confirmed. It is possible to take prompt action such as notifying the fire department.

If the administrator carries the mobile phone 30 and it is difficult to judge the fire only with the image from the camera 15, the mobile phone 3 is rushed to the site of the fire.
With 0, the display content of the display unit 22 of the fire receiver 20 can be confirmed in real time, the fire expansion situation and the like can be confirmed, and it is possible to respond more quickly.

In the above-described embodiment, the level of an analog signal (a certain discrimination level) for automatically displaying the image captured by the camera 15 of the fire detector 10 with a camera, which is issued, is the current level. It may be changed depending on the location.

If the fire detector with camera 10 is installed in a lobby, an entrance, a garbage dump, etc., and the fire detector with camera 10 is judged to be a fire, the camera 15
The fire receiver 20 may be provided with a storage means or the like for automatically recording the video imaged by, so as to prevent an arson or the like as a disaster prevention and crime prevention sensor.

Further, although the fire detector 10 with a camera is of an analog type, it may be of a normal type that transfers contacts to the fire receiver 20, in which case the manager or the carrier will issue a warning. The fire detector 10 with a camera is attached to the operation units 26, 3
It is assumed that the image designated by the input from the camera 6 and displayed by the camera 15 is displayed on the display units 22 and 32. In addition, when only one fire detector 10 is connected to the fire receiver 20, even if the fire detector with a camera 10 that has issued the alarm is not designated, the image captured by the camera 15 is automatically displayed on the display unit. 22 and 32 can be displayed.

[0054]

As described above, the images taken by the cameras of the fire detectors with cameras can be displayed on the display part of the fire receiver and the mobile phone, and the fire spot can be confirmed without rushing to the spot. Yes, you can quickly respond to the situation.

[Brief description of drawings]

FIG. 1 is a diagram showing a fire alarm system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a smoke detector according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a heat sensor according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the fire receiver showing the first embodiment of the present invention.

[Explanation of symbols]

1 Fire alarm equipment 10 Fire detector with camera 20 fire receiver 30 mobile phones

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 7/18 H04N 7/18 E H04B 7/26 MF term (reference) 5C054 AA02 CA04 CC03 CD01 CD03 CF05 CG02 CG08 CH04 CH06 DA07 DA09 EA01 EA03 FE23 HA18 5C085 AA01 AA03 AB01 AC03 AC12 BA12 BA33 CA15 CA30 DA07 DA08 DA10 DA16 EA38 EA41 EA52 5G405 AA01 AA06 AB01 AB02 AC02 AD06 AD02 AD06 AD07 BA08 CA22 CA31 CA53 CA41 DA21 DA52 DA08 DA08 DA07 DA08 DA08 BB21 BB27 DD28 DD51 DD52 EE02 FF18 FF23 FF25 HH11 HH22 5K101 KK11 KK14 LL12 NN18

Claims (7)

[Claims] 1. A plurality of fire detectors that detect a fire phenomenon and output the detected information, and information from the plurality of fire detectors is input, the state of each fire detector is determined, and the state is determined. A fire alarm system including a fire receiver displayed on the first display unit, wherein the fire detector is a camera-equipped fire detector including a camera, and the fire receiver is the camera-equipped fire detector. Fire alarm equipment characterized by displaying the video imaged by the first display unit. 2. The fire receiver comprises a first operating section,
The first operation unit designates each of the fire detectors with a camera that captures an image displayed on the first display unit and changes a shooting direction of the image captured by the fire detector with the camera. Item 1. Fire alarm equipment. 3. The fire detector with camera outputs the detected information as analog value data, and the fire receiver receives the analog value data from the fire detector with camera and the plurality of preset cameras. The state of each fire detector with a camera is discriminated based on the information of the fire detector with a camera, and an image taken by the fire detector with a camera that has reached a certain discrimination level is displayed on the first display unit. 1-2 fire alarm equipment. 4. The fire receiver includes a line connection unit capable of bidirectional communication with a mobile phone, and displays the display content displayed on the first display unit on a second display unit of the mobile phone. The fire alarm system according to claim 1. 5. The mobile phone includes a second operation unit,
The second operation unit designates each of the fire detectors with a camera that captures an image displayed on the first display unit, and changes the shooting direction of the image captured by the fire detector with a camera. Item 4. Fire alarm equipment. 6. The fire detector with camera is a smoke detector having a smoke inflow window provided in a lateral direction, and includes a motor provided on a bottom surface side and a rotary plate pivotally supported by a rotation shaft of the motor. A camera obliquely attached to the rotary plate so that its viewing angle is directed to the lateral direction of the smoke detector while including the central axis of the smoke detector, and a cover for protecting the camera. The fire alarm system according to claim 1, which is provided. 7. The fire detector with a camera is a heat detector, and includes a motor provided on a bottom side, a rotating plate pivotally supported by a rotation shaft of the motor, and a view angle of the heat detector. So as to face the lateral direction of the heat sensor while including the central axis of
The fire alarm system according to any one of claims 1 to 5, further comprising: a camera obliquely attached to the rotating plate; and a cover for protecting the camera, wherein a tip of the thermistor is located below the cover.