CN112489340A

CN112489340A - Fire-fighting terminal, fire-fighting control terminal and fire-fighting method

Info

Publication number: CN112489340A
Application number: CN201911382923.7A
Authority: CN
Inventors: 汤志专; 张锡权; 李先银; 郑容健; 梁世雄
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-09-12
Filing date: 2019-12-27
Publication date: 2021-03-12

Abstract

The embodiment of the application discloses a fire-fighting terminal, a fire-fighting control end and a fire-fighting method, and belongs to the technical field of fire fighting. The fire-fighting terminal comprises a first power line carrier PLC communication component, a fire detector and a shooting component, wherein the fire detector is used for sending out a first alarm signal when a fire disaster is detected. And the shooting component is used for starting a camera shooting function and sending the shot field image information to the first PLC communication component under the condition that the fire detector sends out the first alarm signal. And the first PLC communication component is used for transmitting the field image information to the fire control end through the power line. By adopting the method and the device, the camera shooting component can be started under the condition of fire, and the privacy safety problem possibly caused to people caused by all-weather starting of the camera shooting component can be avoided.

Description

Fire-fighting terminal, fire-fighting control terminal and fire-fighting method

The application claims priority of a Chinese patent application with application number 201910866623.X, entitled "visual fire-fighting terminal, intelligent fire-fighting monitoring method, device and system" filed on 12.09.12.2019, the entire contents of which are incorporated by reference in the application.

Technical Field

The application relates to the technical field of fire safety and protection, in particular to a fire protection terminal, a fire protection control terminal and a fire protection method.

Background

Along with the continuous enhancement of people's fire control consciousness, the place such as garden, office building, hotel will be deployed with fire alarm system more to guarantee people's fire control safety. The fire alarm system is generally composed of a fire control terminal and a fire terminal. The fire-fighting control terminal can be deployed in a machine room where security management personnel are located, and the fire-fighting terminal is usually installed in a corridor, an office area, a house and the like. Then, after knowing that there is probably a fire in a certain area through the fire control end, the safety manager needs to go to the scene by oneself and confirm whether there is a fire to take place really for fire control efficiency is lower.

At present, in order to solve the above problems, a monitoring camera is usually installed around a fire-fighting terminal, and in order to shoot a fire in time, the monitoring camera is opened for 24 hours, continuously shoots a scene image and sends the scene image to a fire-fighting control end, and the scene image is displayed through a display. Like this, when fire control terminal sent alarm signal to fire control end, the security management personnel can see the scene image very first time, know the condition of a fire.

In the course of implementing the present application, the inventors found that the related art has at least the following problems:

for areas with higher privacy protection requirements such as hotels and houses, if the monitoring camera continuously shoots live images for 24 hours, the privacy of people can be invaded, and a relatively serious privacy safety problem is caused.

Disclosure of Invention

In order to solve the problem of low fire fighting efficiency in the related art, the embodiment of the application provides a fire fighting terminal, a fire fighting control terminal and a fire fighting method. The technical scheme is as follows:

in a first aspect, a fire fighting terminal is provided, comprising a first power line carrier PLC communication component (101), a fire detector (102), and a shooting component (103), wherein: the fire detector (102) is used for sending out a first alarm signal when the fire is detected; the shooting component (103) is used for starting a shooting function and sending shot field image information to the first PLC communication component under the condition that the fire detector (102) sends the first alarm signal; the first PLC communication component (101) is used for sending the field image information to a fire control end through a power line.

In the solution shown in the embodiment of the present application, the fire detector 102 is used for detecting that the algorithm has a fire. The detection mode can be to judge whether a fire disaster occurs by detecting smoke, temperature, gas, radiation intensity and the like. When the fire disaster is detected, a first alarm signal is sent out. Both the first PLC communication part 101 and the photographing part 103 may be turned on in case that the fire detector emits the first alarm signal. After the shooting component 103 is turned on, the shooting of the live image information is started, the live image information is sent to the first PLC communication component 101, and the first PLC communication component 104 can perform framing, framing and modulation on the live image information and transmit the live image information to the second PLC communication component in the fire control terminal through the PLC carrier signal in the power line. The PLC head end communication component demodulates the received PLC carrier signal to obtain a field image. The fire control end then stores the live images as evidence and can display them on a display. Therefore, safety management personnel can judge whether a fire disaster happens in the first time by browsing field images, and the fire fighting efficiency is greatly improved. Furthermore, the shooting component 103 does not shoot live images all day long, but can be started to shoot under the condition of fire, so that the privacy and safety of people are effectively protected.

In one possible implementation, the fire terminal further includes a first control component (104); -the fire detector (102), in particular for issuing the first alarm signal to the first control component (104) upon detection of the occurrence of the fire; the first control means (104) for: receiving the first alarm signal; and controlling the shooting part (103) and the first PLC communication part (101) to be started.

In the scheme shown in the embodiment of the present application, the first control part 104 can be used to control the opening of the shooting part 103 and the first PLC communication part 101. The control flow can be as follows: the fire detector 102 detects the occurrence of a fire and sends a first alarm signal to the first control unit 104, and the first control unit 104 controls the photographing unit 103 and the first PLC communication unit 101 to be turned on after receiving the first alarm signal. Here, the alarm signal may be high or low. The preset pin of the first control element 104 is used to receive the alarm signal from the fire detector 102. When a fire is detected, the alarm signal is at a high level, and after the preset pin of the first control component 104 receives the high level, the components can be controlled to be turned on. The method for controlling the opening of the part is realized locally by the fire-fighting terminal, the opening response of the shooting part 103 is quicker, and the scene image information can be shot more timely.

In a possible implementation manner, after receiving the first warning signal and before controlling the shooting component and the PLC communication component to be turned on, the first control component (104) is further configured to: sending a second alarm signal to the fire control end; receiving a control signal sent by the fire control end; and controlling the shooting part (103) and the first PLC communication part (101) to be started according to the control signal.

In the scheme shown in the embodiment of the application, the first control component 104 can control the components to be opened after receiving the control signal sent by the fire control terminal. The control flow can be as follows: the fire detector 102 detects the occurrence of a fire and sends a first alarm signal to the first control unit 104, and the first control unit 104 sends a second alarm signal to the fire control end after receiving the first alarm signal. And after receiving the second control signal, the fire control terminal sends a control signal to the fire control terminal, and after receiving the control signal, the fire control terminal controls the shooting part 103 and the first PLC communication part 101 to be started. The method for opening the control component is realized by the first control component 104, but the control component can be opened only by the indication of the fire control terminal, so that the hidden privacy safety hazard existing when the camera component 103 is directly opened locally through the fire control terminal is avoided, and the protection of privacy safety is better facilitated by the unified management of the fire control terminal.

In one possible implementation, the capturing means (103) is configured to: under the condition that the fire detector (102) sends out the first alarm signal, receiving a first control signal sent by the fire control end, and starting the camera shooting function according to the first control signal; the first PLC communication means (101) for: and receiving a second control signal sent by the fire control terminal, and starting a working mode according to the second control signal.

In the scheme shown in the embodiment of the application, the opening of each part in the fire-fighting terminal can be directly controlled by the fire-fighting control end. The control flow can be as follows: the fire detector 102 detects a fire and sends a first alarm signal to the fire control end, the fire control end can directly send a first control signal to the shooting component 103, and the shooting component 103 starts a camera shooting function after receiving the first control signal. Meanwhile, the second control signal may be directly sent to the first PLC communication part 101, and the first PLC communication part 101 receives the second control signal to start the operation mode. The method for opening the control component avoids the hidden privacy safety hazard caused by directly opening the camera component 103 locally through the fire-fighting terminal, and the fire-fighting control terminal manages uniformly and is more favorable for protecting privacy safety.

In a possible implementation, the fire fighting terminal further comprises a shielding component (105), the shielding component (105) having a shielding function for: blocking the photographing part (103) before the fire detector sends out the first alarm signal, so that the photographing part (103) cannot photograph a live image; after the fire detector (102) issues the first warning signal, the blocking function is turned off so that the photographing part (103) can photograph a live image.

In the scheme shown in the embodiment of the application, because the fire-fighting terminal may be installed in a relatively private place such as a room in actual use, and a camera is installed in the fire-fighting terminal, even if the camera is not turned on, people may be concerned about privacy, and therefore, in order to protect user privacy, the fire-fighting terminal provided in the embodiment of the application may further include the shielding component 105. The shielding member 105 may be disposed in the photographing direction of the photographing member 103. In a normal state, the shielding member 105 is in a state of shielding the photographing member 103. After the fire detector 102 issues the first alarm signal, the shielding part 105 may be switched from a state of shielding the photographing part 103 to a state of not shielding the photographing part 103. Thus, the shielding part 105 can shield the shooting part 103 under normal conditions, and can effectively protect the privacy safety of people.

In one possible implementation, the smoke sensing terminal further comprises a voice alarm component (106), wherein: the voice alarm component (106) is used for starting and sending out preset voice under the condition that the fire detector (102) sends out the first alarm signal.

In the scheme shown in the embodiment of the application, in order to further protect the privacy of people, the fire-fighting terminal further includes a voice alarm component 106. In case that the fire detector (102) emits the first alarm signal, a preset voice is emitted to prompt people to turn on the photographing part 103. Voice is preset, such as "camera on, please pay attention to protect privacy". In addition, the fire alarm can also play a role in prompting people of fire.

In one possible implementation, the smoke sensing terminal further comprises a light alarm component (107), wherein: the light alarm component (107) is used for starting and emitting light under the condition that the fire detector (102) emits the first alarm signal.

In the scheme shown in the embodiment of the application, in order to further protect the privacy of people, the smoke sensing terminal further includes a light alarm component 107. In the case where the fire detector (102) issues the first warning signal, it is turned on and emits light to prompt the photographing part 103 to turn on. Such as a fast flashing red light. In addition, the fire alarm can also play a role in prompting people of fire.

In a second aspect, a fire-fighting control terminal is provided, where the fire-fighting control terminal includes a second power line carrier PLC communication component (201), a second control component (202), and is characterized in that:

the second control means (202) for:

receiving a fire alarm signal sent by a fire-fighting terminal;

responding to the received fire alarm signal, sending a control signal to the fire-fighting terminal, and controlling a shooting component and a first PLC communication component of the fire-fighting terminal to be started;

the second PLC communication component (201) is used for receiving the scene image information shot by the shooting component and sent by the first PLC communication component.

In one possible implementation, the second control means (202) is configured to:

and responding to the received fire alarm signal, sending a control signal to a first control component in the fire-fighting terminal, and controlling a shooting component and a first PLC communication component of the fire-fighting terminal to be started.

responding to the received fire alarm signal, sending a first control signal to the fire-fighting terminal, and controlling a shooting part of the fire-fighting terminal to be started;

and sending a second control signal to the fire-fighting terminal to control the first PLC communication component to be started.

In a possible implementation manner, the sending a second control signal to the fire fighting terminal to control the first PLC communication component to be turned on includes:

and sending a second control signal to a first PLC communication component of the fire-fighting terminal through the second PLC communication component (201) to control the first PLC communication component to be started.

In a third aspect, a fire fighting method is provided, where the fire fighting method is applied to a fire fighting terminal, where the fire fighting terminal includes a first power line carrier PLC communication component, a fire detector, and a shooting component, and the fire fighting method includes:

when the fire detector detects that a fire disaster happens, a first alarm signal is sent out;

the shooting component starts a shooting function and sends shot field image information to the first PLC communication component under the condition that the fire detector sends the first alarm signal;

and the first PLC communication component transmits the field image information to a fire control end through a power line.

In one possible implementation, the fire fighting terminal further includes a first control unit, and the fire detector sends out a first alarm signal when detecting the occurrence of a fire, including:

when the fire detector detects the fire, the fire detector sends the first alarm signal to the first control component;

the fire fighting method further comprises the following steps:

and the first control component receives the first alarm signal and controls the shooting component and the first PLC communication component to be started.

In one possible implementation manner, after the receiving the first warning signal and before the controlling the shooting component and the PLC communication component to be turned on, the fire fighting method further includes:

the first control component sends a second alarm signal to the fire control end;

the first control component receives a control signal sent by the fire control end;

and controlling the shooting part and the first PLC communication part to be started according to the control signal.

In one possible implementation manner, the shooting component starts a camera function when the fire detector (102) sends out the first alarm signal, and the camera function comprises the following steps:

the shooting component receives a first control signal sent by the fire control end under the condition that the fire detector sends the first alarm signal, and starts the shooting function according to the first control signal;

the fire fighting method further comprises:

and the first PLC communication component receives a second control signal sent by the fire control end and starts a working mode according to the second control signal.

In one possible implementation, the fire fighting terminal further includes a shielding component, and the fire fighting method further includes:

the shielding component shields the shooting component before the fire detector sends the first warning signal, so that the shooting component cannot shoot a scene image, and after the fire detector sends the first warning signal, the shielding function is closed, so that the shooting component can shoot the scene image.

In one possible implementation, the fire fighting terminal further includes: the fire fighting method further comprises the following steps:

and the voice alarm component is started and sends out preset voice under the condition that the fire detector sends out the first alarm signal.

In one possible implementation manner, the fire fighting terminal further includes a light alarm component, and the fire fighting method further includes:

and the light alarm component is started and emits light under the condition that the fire detector emits the first alarm signal.

In a fourth aspect, a fire fighting method is provided, where the fire fighting method is applied to a fire fighting control end, where the fire fighting control end includes a second power line carrier PLC communication component and a second control component, where:

the second control component receives a fire alarm signal sent by a fire-fighting terminal, responds to the received fire alarm signal, sends a control signal to the fire-fighting terminal and controls a shooting component and a first PLC communication component of the fire-fighting terminal to be started;

the second PLC communication means receives the live image information photographed by the photographing means, which is transmitted from the first PLC communication means.

In one possible implementation manner, the sending the control signal to the fire fighting terminal includes:

and sending a control signal to a first control component in the fire-fighting terminal.

In a possible implementation manner, the sending a control signal to the fire fighting terminal to control a shooting component and a first PLC communication component of the fire fighting terminal to be turned on includes:

and sending a first control signal to the fire-fighting terminal to control the shooting part of the fire-fighting terminal to be started, and sending a second control signal to the fire-fighting terminal to control the first PLC communication part to be started.

and sending a second control signal to a first PLC communication component of the fire-fighting terminal through the second PLC communication component, and controlling the first PLC communication component to be started.

In a fifth aspect, a fire fighting method is provided, where the fire fighting method is applied to a fire fighting system, the fire fighting system includes a fire fighting terminal and a fire fighting control end, where the fire fighting terminal includes a first power line carrier PLC communication component, a fire detector and a shooting component, and the fire fighting control end includes a second power line carrier PLC communication component, and the fire fighting method includes:

the first PLC communication component transmits the field image information to a fire control end through a power line;

In a possible implementation manner, the fire fighting terminal further includes a first control component, the fire fighting control terminal further includes a second control component, and the fire detector sends out a first alarm signal when detecting that a fire occurs, including:

the fire fighting method further comprises the following steps:

the first control component receives the first alarm signal and sends a second alarm signal to a second control component of the fire control end;

the second control component responds to the second alarm signal and sends a control signal to the fire-fighting terminal;

and the fire-fighting terminal receives the control signal and controls the shooting component and the first PLC communication component to be started according to the control signal.

In one possible implementation manner, the sending, by the second control component, a control signal to the first control component in response to the second alarm signal includes:

the second control part transmits a first control signal and a second control signal to the fire fighting terminal in response to receiving the fire alarm signal;

and the fire-fighting terminal receives the first control signal and the second control information, controls a shooting part of the fire-fighting terminal to be started according to the first control signal, and controls the first PLC communication part to be started according to the second control signal.

In one possible implementation, the second control unit, in response to receiving the fire alarm signal, transmits a first control signal and a second control signal to the fire terminal, including:

the second control part transmits a first control signal to the fire terminal in response to receiving the fire alarm signal, and transmits a second control signal to the first PLC communication part through the second PLC communication part.

In a sixth aspect, the present application provides a fire fighting system, including the fire fighting terminal in the first aspect or any one of the possible implementations of the first aspect, and the fire fighting control terminal in the second aspect or any one of the possible implementations of the second aspect. The fire control end can be a fire host, a fire control platform and the like.

The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:

the smoke sensing terminal that this application embodiment provided includes first PLC communication part, fire detector and shoots the part in. The fire detector can send out a first alarm signal after detecting fire. The shooting component starts a shooting function under the condition that the fire detector sends out a first alarm signal, and transmits shot field image information to the fire control end through a power line. Therefore, the shooting part is not started for 24 hours, but the shooting function is started under the condition of fire, so that the scene image information is shot, and the privacy safety problem caused by all-weather continuous shooting can be avoided. In addition, by adopting the scheme of the application, an extra security camera does not need to be deployed or linked, and the problem that the visual field of the security camera cannot be covered is effectively solved.

Further, compared with the problems that the bandwidth of a Narrow-Band Internet of Things (NB-IOT) in the existing scheme is insufficient, the 4G-LTE coverage is incomplete, additional wiring of a wired Ethernet is performed, and additional deployment of a WLAN is needed, the application multiplexes the existing fire-fighting bus (namely, a power line), superposes a PLC power line communication technology, and can provide enough bandwidth for returning field image information without large-scale line transformation. In addition, the technical scheme of the application reuses the main and standby power supplies special for fire protection (namely the power supply provided by the fire protection control end), so that when the external power supply is cut off when a fire disaster happens, the fire protection terminal can continue to supply power. The defects that the bandwidth of a traditional fire-fighting communication link is insufficient and field image information cannot be transmitted are effectively overcome, deployment is simple, and detection is accurate.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a fire protection system provided by an embodiment of the present application;

fig. 2 is a schematic structural diagram of a fire fighting terminal according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a fire fighting terminal according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a fire fighting terminal according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a fire-fighting control end provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a fire fighting terminal according to an embodiment of the present application;

FIG. 7 is a schematic flow chart of a fire fighting method according to an embodiment of the present application;

FIG. 8 is a schematic flow chart of a method of fighting fire according to an embodiment of the present disclosure;

fig. 9 is a schematic flow chart of a fire fighting method according to an embodiment of the present application.

Illustration of the drawings:

in fig. 2 to 6: 101. the intelligent monitoring system comprises a first PLC communication component, 102, a fire detector, 103, a shooting component, 104, a first control component, 105, a shielding component, 106, a voice alarm component, 107, a light alarm component, 108, a first electronic control switch, 109, a second electronic control switch, 110, a third electronic control switch, 111, a fourth electronic control switch, 112, a fifth electronic control switch, 113, a terminal power-taking component, 201, a second PLC communication component, 202, a second control component, 203, a video black box, 204, a video storage module, 205, a video liquid crystal display module, 206 and a direct current power supply.

Detailed Description

The embodiment of the application provides a fire-fighting terminal, which can be deployed and used in a fire-fighting system. In the fire fighting system shown in fig. 1, the fire fighting control end can be deployed with N fire fighting loops, and each fire fighting loop can be deployed with a plurality of fire fighting terminals. The fire control end and the fire control terminal can be connected through a power line, and the power line can be a twisted pair line and the like. Wherein, the fire control end can set up in safety control personnel computer lab to safety control personnel in time react the conflagration. The fire-fighting terminal can be arranged in the areas such as corridors, office areas, rooms and the like.

The fire-fighting terminal can comprise a fire detection terminal, and can also comprise a smoke and smoke prevention terminal, a fire-fighting broadcast terminal, a fire-proof roller shutter and the like. The fire detection terminal can judge whether a fire occurs or not by detecting smoke, temperature, gas, radiation intensity and the like in the environment, and when the fire occurs, a fire alarm signal is sent out, a built-in camera is started to shoot a site image, so that the reason of the fire is judged according to the shot site image. The smoke prevention and exhaust terminal can be opened after receiving an opening instruction sent by the fire control terminal, and smoke is exhausted through the smoke exhaust pipeline so as to reduce indoor smoke concentration. The fire-fighting broadcast terminal can be started after receiving a starting instruction sent by the fire-fighting control terminal to send fire prompting voice, or the fire prompting voice can be sent to the fire-fighting broadcast terminal by a safety manager through the fire-fighting control terminal, and then the fire-fighting broadcast terminal can directly broadcast the received prompting voice. Each fire control terminal can carry out PLC communication through power line and fire control end. In the embodiment of the application, the twisted pair can be used for one line and three purposes, namely, the twisted pair can be used as a power transmission line for supplying power to a fire-fighting terminal and used as a low-speed bus for transmitting alarm signals and control signals, and can also be used as a PLC transmission line for transmitting field image information. Like this, the fire control terminal can multiplex the power of fire control end through the power line to external power supply is cut off when can also solving the conflagration and takes place, leads to the unable problem of supplying power of security protection camera.

The embodiment of the present application provides a fire-fighting terminal, as shown in fig. 2, the fire-fighting terminal includes a first Power Line Carrier (PLC) communication component 101, a fire detector 102, and a shooting component 103. The fire detector 102 is used for sending out a first alarm signal when the fire occurrence is detected. And the shooting component 103 is used for starting the shooting function and sending the shot field image information to the first PLC communication component through the power line under the condition that the fire detector 102 sends the first alarm signal. And a first PLC communication part 101 for transmitting the live image information photographed by the photographing part 103 to the fire control terminal.

The first PLC communication component 101 in the smoke sensing terminal may also be referred to as a PLC tail end communication component, and there may be a PLC head end communication component in the fire control end corresponding to the PLC tail end communication component. The PLC tail end communication part and the PLC head end communication part may perform data transmission through a power line. The photographing part 103 may support image photographing of a variety of pixels, for example, may support image photographing of 30 ten thousand pixels or 130 ten thousand pixels, and a technician may set different photographing parts supporting different pixels according to different scenes. The fire detector 103 may detect temperature, smoke, gas, radiation intensity, etc. to determine whether a fire has occurred.

In practice, the dc power source 206 may be included in the fire fighting control end of the fire fighting system. The dc power supply 206 may convert the 220V dc power to 24V dc power and supply power to the fire terminal through a power line.

In order to protect the privacy and safety of people, the image pickup part 103 in the fire-fighting terminal can be in a closed state when no fire occurs. In addition, in order to reduce the energy consumption of the fire terminal, the PLC communication part 101 in the fire terminal may be in a turned-off state when no fire occurs. In order to timely detect the occurrence of a fire, the fire detector 102 in the fire terminal may be kept on all day long.

The fire detector 102 may detect the temperature, smoke, gas and radiation intensity in the surrounding environment in real time to determine whether a fire has occurred. When the fire detector 102 determines that a fire has occurred, a first alarm signal may be issued. And the shooting component 103 is used for starting the shooting function and sending the shot field image information to the first PLC communication component under the condition that the fire detector 102 sends out the first alarm signal.

The fire-fighting terminal can be installed on the ceiling, an opening is formed in the case on the side of the smoke sensing terminal facing the ground, the shooting direction of the shooting part 103 arranged inside the fire-fighting terminal also faces the ground, and the shooting part 103 can shoot outside live images through the opening formed in the case. First PLC communication part 101 in fire control terminal can adapt Serial Peripheral Interface (SPI), and correspondingly, shooting part 103 also can be the SPI camera, and shooting part 103 and first PLC communication part 101 can be connected through the signal line.

When the shooting part 103 is powered on, the shooting of the live image information is started. And can transmit the photographed live image to the first PLC communication part 101 through the signal line. The PLC communication part 101 may frame and modulate the live image information, and transmit the framed live image information to the second PLC head-end communication part in the fire control terminal through the PLC carrier signal in the power line. The second PLC communication component demodulates the received PLC carrier signal to obtain a live image.

In a possible implementation manner, the fire control end may further include a video black box 203, which is used to record key video data information of a fire situation, and protect a device that can preserve the video stored in a fire scene. And the video storage module 204 is a storage device for storing the thread video. The video liquid crystal display module 205 is an external display device for displaying or playing back live images returned by the fire-fighting terminal in real time.

In implementation, the fire control end can store the scene image as evidence through the video black box and the video storage module, and can display the scene image on the video liquid crystal display module, and safety management personnel can judge whether the fire happens really at the first time by browsing the scene image.

In addition, the photographing section 103 may also store the photographed live image for a preset time period, such as 15 minutes. Of course, if the storage space of the photographing section 103 is small, it is possible to store the photographed live image for a short time and set the deletion mechanism. For example, when the stored live image reaches eighty percent of the maximum storage space, the live image whose shooting time is currently long is subjected to deletion processing.

In one possible implementation, the fire terminal may further include a shielding part 105 shielding the photographing part 103 before the fire detector sends the first alarm signal, so that the photographing part 103 cannot photograph a live image. After the fire detector 102 issues the first alarm signal, the blocking function is turned off so that the photographing part 103 can photograph a live image.

In practice, since the fire fighting terminal may be installed in a relatively private place such as a room and the camera is installed in the fire fighting terminal, even if the camera is not turned on, the concern of privacy and safety may be raised. Therefore, in order to protect the privacy and safety of people, the fire-fighting terminal provided by the embodiment of the application can further comprise a shielding part 105. The shielding member 105 is provided in the imaging direction of the imaging member 103 to shield the imaging member 103 so that the imaging member 103 is not seen by a person under normal conditions.

As shown in fig. 3, the fire fighting terminal is a casing of the ground facing side, the casing is provided with a circular opening, one side of the shielding member 105 is connected with one end of the driving saw blade through a rotating shaft, and the other end of the driving saw blade is in contact with the linear motor. Normally, the shutter member 105 is in a state of blocking the circular opening, i.e., blocking the photographing member 103, without using the end to which the rotation shaft is connected.

When the control part 104 receives the alarm indication signal, the linear motor is powered on, and after the linear motor is powered on, the shielding part 105 rotates around the rotating shaft through the transmission saw teeth until the circular opening on the shell is not shielded. Thus, the photographing part 103 can photograph a live image through the circular opening, that is, the shielding part is in a state of not shielding the photographing part 103.

In a possible implementation manner, as shown in fig. 4, for the purpose of further protecting people's privacy and serving or alarming, the fire fighting terminal provided by the embodiment of the present application may further include a voice alarm component 106, where the voice alarm component 106 is configured to turn on and send out a preset voice in case that the fire detector 102 sends out the first alarm signal.

In practice, when the shooting part 103 is turned on to shoot, people can be reminded that the shooting part is shooting. Under the condition that the fire detector 102 sends out the first alarm signal, the voice alarm part 106 is controlled to be powered on and started, and preset voice is sent out to prompt the shooting part 103 to be started. Voice is preset, such as "camera on, please pay attention to protect privacy".

In a possible implementation manner, as shown in fig. 4, in order to further protect people's privacy, the fire terminal provided in the embodiment of the present application may further include a light alarm component 107, and the light alarm component 107 turns on and emits light in case that the fire detector 102 emits the first alarm signal.

In implementation, when the shooting part is started to shoot, people can be reminded that the shooting part shoots. In case that the fire detector 102 sends out the first alarm signal, the light alarm part 107 is controlled to be powered on to send out light to remind people that the shooting part 103 is turned on. The light is red light flashing according to a preset period.

In one possible implementation, after the fire detector 102 sends out the first alarm signal, the fire terminal may locally turn on the various components. As shown in fig. 4, a first control part 104 may be further included in the fire fighting terminal, and accordingly, the fire detector 102 sends the first alarm signal to the first control part 104 when the occurrence of a fire is detected. The first control part 104 may control the photographing part 103, the first PLC communication part 101, the blocking part 105, the voice alarm part 106, and the light alarm part 107 to be turned on after receiving the first alarm signal.

In implementation, as shown in fig. 4, the photographing part 103, the first PLC communication part 101, the shielding part 105, the voice alarm part 106, and the light alarm part 107 may be electrically connected to the first control part when they are turned on. A signal line may also be connected between the fire detector 102 and the control unit. The fire detector 102 may send a signal, which may include both a high level and a low level, to a designated pin of the first control part 104 through a signal line at a preset clock cycle. The low level indicates that a normal signal of fire occurrence is not detected, and the high level indicates that an alarm signal of fire occurrence is detected. After receiving the high level, the designated pin of the first control part 104 controls the shooting part 103, the PLC communication part 101, the shielding part 105, the voice alarm part 106 and the light alarm part 107 to be powered on.

In one possible implementation manner, for better protecting the privacy and safety of people, the opening of each component in the fire-fighting terminal can be controlled by the fire-fighting control terminal. Correspondingly, as shown in fig. 5, the fire control end may further include a second control unit 202, and the fire detector 102 may send a first alarm signal to the second control unit 202, and the second control unit 202 sends control signals to the components in the consumer terminal to control the opening of the components.

Besides, the following implementation method can be adopted for controlling the opening of each part in the fire-fighting terminal through the fire-fighting control terminal. The first control unit 104 is included in the fire terminal, the second control unit 202 is included in the fire control terminal, and the low speed bus may be included in both the first control unit 104 and the second control unit 202. The second control component 202 and the first control component 104 may be in a master-slave communication relationship. The fire detector 102 may first issue a first alarm signal to the first control element 104, and the first control element 104 may send a second alarm signal to the second control element 202 in the fire control terminal over the low speed bus in response to the first alarm signal. The second control element 202 sends a control signal to the first control element 104 over the low speed bus in response to the second alarm signal, and the first control element 104 controls the elements to turn on in response to the control signal.

The following describes a method for controlling the opening of the above-described components.

In one possible implementation, as shown in fig. 6, a dedicated power and voltage conversion component, namely a terminal power component 113, may be present in the fire terminal. The dc power supply in the fire control terminal can provide 24V dc, and the terminal power-taking part 113 in the fire control terminal can convert the 24V dc into a lower voltage to be provided to the fire detector 102, the photographing part 103, the shielding part 105, the voice alarm part 106, the light alarm part 107, and the like. Wherein the lower voltage may be 5V or 3.3V. In addition, independent electric control switches corresponding to the components may be arranged in the circuit, and the control component 104 may control the components to be turned on or turned off by controlling the independent electric control switches.

Correspondingly, a first electronic control switch 108 is arranged in a connecting circuit of the terminal power-taking part 113 and the shooting part 103, and the first control part 104 and the first electronic control switch 108 can be electrically connected through a signal line. The first control part 104 can send a closing control signal to the first electronic control switch 108 through the signal line, and control the first electronic control switch 108 to close, so that the shooting part 103 is powered on and opened.

A second electronic control switch 109 is arranged in a connection circuit of the terminal electricity-taking part 113 and the shielding part 105, and the first control part 104 and the second electronic control switch 109 can be electrically connected through a signal line. The first control part 104 can send a closing control signal to the second electronic control switch 109 through the signal line, and control the second electronic control switch 109 to close, so that the voice alarm part 106 is powered on.

A third electric control switch 110 is arranged in a connecting circuit of the terminal electricity taking part 113 and the voice alarm part 106, and the first control part 104 and the third electric control switch 110 can be electrically connected through a signal line. The first control component 104 can send a closing control signal to the third electronic control switch 110 through the signal line, and control the third electronic control switch 110 to close, so that the voice alarm component 106 is powered on.

A fourth electric control switch 111 is arranged in a connecting circuit of the terminal electricity taking part 113 and the light alarm part 107, and the first control part 104 and the fourth electric control switch 111 can be electrically connected through a signal line. The first control component 104 can send a closing control signal to the fourth electronic control switch 111 through the signal line, and control the fourth electronic control switch 111 to close, so that the light alarm component 107 is powered on.

A fifth electronic control switch 112 is arranged in a connection circuit of the terminal power-taking part 113 and the first PLC communication part 101, and the first control part 104 and the fifth electronic control switch 112 may be electrically connected through a signal line. The first control unit 104 may send a closing control signal to the fifth electronically controlled switch 112 through the signal line, and control the fifth electronically controlled switch 112 to close, so that the first PLC communication unit 101 is powered on.

It should also be noted here that the first control component 104 sends the close control signal to each component when the trigger for sending the close control signal to each component may be the receipt of an alarm signal from the fire detector 102. The closing control signal can also be sent to each part when the closing control signal sent by the second control part 202 in the fire control end is received.

For the method for starting the first PLC communication part 101 in the fire-fighting terminal, besides the control of the closing of the corresponding electric control switch, pin awakening and carrier awakening can be realized.

For pin wake up mode.

Is suitable for the awakening of the first PLC communication part 101 in the pin sleep state. That is, the first control part may transmit a high level signal to a preset pin of the first PLC communication part 101, and after the preset pin receives the high level signal, the first PLC communication part 101 may be woken up.

A method for carrier wakeup.

The method is suitable for waking up the first PLC communication unit 101 in the carrier sleep state. This approach needs to be implemented using the second PLC communication component 201 in the fire control end. The second control component 202 in the fire-fighting control end may include an edge computing gateway, and for each fire-fighting terminal, the edge computing network may store a Smoke Identifier (SID) of the fire-fighting terminal and a PLC Identifier (PID) of the fire-fighting terminal. The SID may be an address number of a low-speed bus in the first control part 104 in the fire fighting terminal, and the PID may be a PLC MAC address of the first PLC communication part 101 in the fire fighting terminal.

The first control part 104 in the fire fighting terminal can simultaneously transmit the SID of the fire fighting terminal when transmitting the second alarm to the second control part 202 of the fire fighting control terminal through the low speed bus. The low-speed bus in the second control unit 202 and the edge computing gateway may communicate bi-directionally via Universal Asynchronous Receiver/Transmitter (UART). After receiving the second alarm signal and the SID, the low-speed bus in the second control component 202 may send the SID to the edge computing gateway through the UART, where the edge computing gateway queries the PID corresponding to the SID and sends a preset carrier signal to the first PLC communication component 101 corresponding to the PID through the second PLC communication component 201, so as to remotely wake up the first PLC communication component 101.

In a possible implementation manner, the first control component 104 is further configured to receive a communication congestion message sent by the fire control end when detecting that the power line meets the bandwidth congestion condition, and send a snapshot instruction to the shooting component 103. Correspondingly, the shooting component 103 shoots the live video before receiving the snapshot instruction, and shoots the live picture according to the preset period after receiving the snapshot instruction.

In practice, a plurality of fire terminals may be deployed in a fire protection system at the same time, and if the plurality of fire terminals simultaneously transmit live images to a fire control terminal through a power line, since the maximum bandwidth of the power line is generally about 2M, it may cause congestion of the transmission bandwidth of the power line.

In order to solve the above problem, an edge computing gateway in the second control part 202 in the fire control terminal may compute an available bandwidth of the power line, and when the available bandwidth reaches a preset multiple of the maximum bandwidth, it is considered that the congestion condition is satisfied. The predetermined multiple may be greater than 2/3 and less than 1. When the edge computing gateway in the fire control terminal judges that the bandwidth of the power line meets the bandwidth congestion condition, a communication congestion signal can be sent to a low-speed bus in the fire control terminal through the low-speed bus of the fire control terminal. When the low-speed bus of the fire-fighting terminal receives the communication congestion signal, a snapshot instruction may be sent to the shooting component 103. After receiving the snapshot instruction, the shooting component 103 starts to shoot the scene picture according to a preset period. In the case where the snapshot instruction is not received, the shooting means may shoot a live video.

After the safety manager confirms the fire or finishes the on-site treatment, the fire control end can input a reset instruction, the fire control end sends a reset signal to the low-speed bus of the fire control terminal through the low-speed bus, and after the low-speed bus of the fire control terminal receives the reset signal, the control part 104 controls the first electronic control switch 108, the second electronic control switch 109, the third electronic control switch 110, the fourth electronic control switch 111 and the fifth electronic control switch 112 to be switched off, namely, the shooting part 103, the shielding part 105, the voice alarm part 106, the light alarm part 107 and the first PLC communication part 101 are powered off. Except the shielding part 105, other parts are powered off and closed, and the shielding part 105 cannot be automatically reset after being powered off, so that the shielding part 105 can be manually reset to the state of shielding the shooting part 103 by safety management personnel. Of course, the first PLC communication unit 101 may be put to sleep by a pin sleep or carrier sleep method without controlling the corresponding electronic control switch to be turned off.

The above description is only one embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

The embodiment of the application also provides a fire fighting method, which can be realized by a fire fighting terminal, and as in the above embodiment, the fire fighting terminal can comprise a first power line carrier PLC communication component, a fire detector and a shooting component. As shown in fig. 7, the process flow of the fire fighting method may include the following steps:

step 701, when detecting that a fire occurs, the fire detector sends out a first alarm signal.

And step 702, the shooting component starts the shooting function and sends the shot field image information to the first PLC communication component under the condition that the fire detector sends out the first alarm signal.

And step 703, the first PLC communication component sends the field image information to a fire control end through a power line.

the fire fighting method further comprises the following steps:

the fire fighting method further comprises:

It should be noted here that the implementation manner of each step in the fire fighting method is the same as that of the method executed by the fire fighting terminal in the embodiment of the fire fighting terminal, and is not described herein again.

The embodiment of the application also provides a fire fighting method, which can be realized by a fire fighting control terminal, and as in the above embodiment, the fire fighting terminal can comprise a second power line carrier PLC communication component and a second control component. As shown in fig. 8, the process flow of the fire fighting method may include the following steps:

and 801, the second control component receives a fire alarm signal sent by the fire-fighting terminal, responds to the received fire alarm signal, sends a control signal to the fire-fighting terminal, and controls a shooting component and a first PLC communication component of the fire-fighting terminal to be started.

And step 802, the second PLC communication component receives the scene image information shot by the shooting component and sent by the first PLC communication component.

It should be noted here that the implementation manner of each step in the fire fighting method is the same as that executed by the fire fighting control end in the embodiment of the fire fighting terminal, and is not described herein again.

The embodiment of the application also provides a fire fighting method, which can be realized by a fire fighting system, wherein the fire fighting system can comprise the fire fighting terminal and the fire fighting control terminal. The fire control terminal comprises a first power line carrier PLC communication component, a fire detector and a shooting component, and the fire control terminal comprises a second power line carrier PLC communication component. As shown in fig. 9, the process flow of the fire fighting method may include the following steps:

step 901, the fire detector sends out a first alarm signal when detecting the fire.

And 902, starting a camera shooting function by the shooting component under the condition that the fire detector sends out a first alarm signal, and sending the shot field image information to the first PLC communication component.

And step 903, the first PLC communication component sends the field image information to a fire control end through a power line.

And 904, the second PLC communication component receives the live image information shot by the shooting component and sent by the first PLC communication component.

the fire fighting method further comprises the following steps:

It should be noted here that the implementation manner of each step in the fire fighting method is the same as the method executed by the fire fighting control terminal and the fire fighting terminal in the above embodiment of the fire fighting terminal, and is not described herein again.

Claims

1. A fire fighting terminal, characterized in that the fire fighting terminal comprises a first power line carrier PLC communication part (101), a fire detector (102) and a shooting part (103), wherein:

the fire detector (102) is used for sending out a first alarm signal when the fire is detected;

the shooting component (103) is used for starting a shooting function and sending shot field image information to the first PLC communication component under the condition that the fire detector (102) sends the first alarm signal;

the first PLC communication component (101) is used for sending the field image information to a fire control end through a power line.

2. A fire terminal as claimed in claim 1, characterised in that the fire terminal further comprises a first control component (104);

-the fire detector (102), in particular for issuing the first alarm signal to the first control component (104) upon detection of the occurrence of the fire;

the first control means (104) for:

receiving the first alarm signal;

and controlling the shooting part (103) and the first PLC communication part (101) to be started.

3. The fire control terminal of claim 2, wherein the first control component (104), after receiving the first alarm signal and before controlling the photographing component and the PLC communication component to be turned on, is further configured to:

sending a second alarm signal to the fire control end;

receiving a control signal sent by the fire control end;

and controlling the shooting part (103) and the first PLC communication part (101) to be started according to the control signal.

4. A fire terminal according to claim 1, characterised in that the camera means (103) are adapted to:

under the condition that the fire detector (102) sends out the first alarm signal, receiving a first control signal sent by the fire control end, and starting the camera shooting function according to the first control signal;

the first PLC communication means (101) for:

and receiving a second control signal sent by the fire control terminal, and starting a working mode according to the second control signal.

5. A fire terminal according to any of claims 1-4, characterised in that the fire terminal further comprises a screen member (105),

the shielding member (105) has a shielding function for:

blocking the photographing part (103) before the fire detector sends out the first alarm signal, so that the photographing part (103) cannot photograph a live image;

after the fire detector (102) issues the first warning signal, the blocking function is turned off so that the photographing part (103) can photograph a live image.

6. A fire terminal as claimed in any one of claims 1 to 5, further comprising: a voice alarm part (106),

the voice alarm component (106) is used for starting and sending out preset voice under the condition that the fire detector (102) sends out the first alarm signal.

7. A fire terminal according to any of the claims 1-6, characterised in that the fire terminal further comprises a light alarm component (107),

the light alarm component (107) is used for starting and emitting light under the condition that the fire detector (102) emits the first alarm signal.

8. A fire terminal as claimed in any one of claims 1 to 7, wherein the fire terminal is powered by a fire-fighting-specific power supply.

9. A fire control end, characterized in that, fire control end includes second power line carrier PLC communication part (201), second control part (202), its characterized in that, wherein:

the second control means (202) for:

receiving a fire alarm signal sent by a fire-fighting terminal;

10. A fire control terminal according to claim 9, characterised in that the second control member (202) is adapted to:

11. A fire control terminal according to claim 9, characterised in that the second control member (202) is adapted to:

12. The fire control terminal of claim 11, wherein the sending of the second control signal to the fire control terminal to control the first PLC communication component to be turned on comprises:

13. A fire fighting method is applied to a fire fighting terminal, the fire fighting terminal comprises a first power line carrier PLC communication component, a fire detector and a shooting component, and the fire fighting method comprises the following steps:

14. A fire fighting method as defined in claim 13, wherein the fire fighting terminal further includes a first control unit, and the fire detector issues a first alarm signal upon detecting the occurrence of a fire, including:

the fire fighting method further comprises the following steps:

15. A fire fighting method according to claim 14, wherein before the controlling the photographing part and the PLC communication part to be turned on after the receiving of the first alarm signal, the fire fighting method further comprises:

16. A fire fighting method as defined in claim 13, characterized in that the camera component, in the event of the fire detector (102) issuing the first warning signal, activates a camera function, including:

the fire fighting method further comprises:

17. A fire fighting method as defined in any of claims 13-16, wherein the fire fighting terminal further includes a shelter, the fire fighting method further comprising:

18. A fire fighting method as defined in any of claims 13-17, wherein the fire fighting terminal further comprises: the fire fighting method further comprises the following steps:

19. A fire fighting method as defined in any of claims 13-18, wherein the fire fighting terminal further comprises a light alarm component, the fire fighting method further comprising:

20. A fire fighting method, characterized in that the fire fighting method is applied to a fire fighting control terminal, the fire fighting control terminal comprising a second power line carrier PLC communication component, a second control component, wherein:

21. A fire fighting method according to claim 20, wherein said sending control signals to the fire fighting terminal comprises:

22. A fire fighting method as recited in claim 20, wherein the sending of the control signal to the fire fighting terminal to control the shooting component and the first PLC communication component of the fire fighting terminal to be turned on comprises:

23. A fire fighting method as defined in claim 22, wherein the sending of the second control signal to the fire fighting terminal, controlling the first PLC communication component to be turned on, comprises:

24. A fire fighting method is applied to a fire fighting system, the fire fighting system comprises a fire fighting terminal and a fire fighting control end, the fire fighting terminal comprises a first power line carrier PLC communication component, a fire detector and a shooting component, the fire fighting control end comprises a second power line carrier PLC communication component, and the fire fighting method comprises the following steps:

25. A fire fighting method according to claim 24, wherein the fire fighting terminal further includes a first control part, the fire fighting control terminal further includes a second control part, and the fire detector issues a first alarm signal upon detection of a fire occurrence, including:

the fire fighting method further comprises the following steps:

26. The method of claim 25, wherein the second control component sending a control signal to the first control component in response to the second alert signal comprises:

27. The method of claim 26, wherein the second control component, in response to receiving the fire alarm signal, sends first and second control signals to the fire terminal, including:

28. A fire fighting system, characterized in that the fire fighting system comprises the fire fighting terminal according to any one of claims 1 to 8 and the fire fighting control terminal according to any one of claims 9 to 12.