CN113436406A - Sound-light alarm system - Google Patents
Sound-light alarm system Download PDFInfo
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- CN113436406A CN113436406A CN202110979147.XA CN202110979147A CN113436406A CN 113436406 A CN113436406 A CN 113436406A CN 202110979147 A CN202110979147 A CN 202110979147A CN 113436406 A CN113436406 A CN 113436406A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Abstract
The invention relates to an acousto-optic alarm system which comprises a camera device, a light frequency detection device, a smoke sensing detection device, a temperature detection device, an infrared distance measurement device voice alarm device, an LED alarm device and a central control module. According to the invention, a camera device is used for continuously acquiring images of a monitored area, a central control module is used for comparing an acquisition result with a standard environment continuous image arranged inside the central control module to preliminarily judge whether a fire exists or not, further detection and judgment are carried out by an optical frequency detection device, a smoke detection device and a temperature detection device to determine whether the fire exists or not, an infrared distance measurement device is used for transmitting instruction prompts to an external management monitoring port, when the fire exists in the monitored area, the central control module is used for detecting the size of a fire burning area by the infrared distance measurement device and determining the fire grade, and then the central control module carries out alarm modes of different grades according to the fire grade.
Description
Technical Field
The invention relates to the technical field of fire alarm, in particular to an audible and visual alarm system.
Background
With the development of national economy, buildings such as large public buildings, large-scale underground commercial streets and the like are more and more, according to the fire-fighting requirement, a fire alarm system and a fire evacuation indicating system are required to be installed in the buildings, the fire alarm system mainly comprises a fire detection unit, a fire alarm controller, fire-fighting linkage equipment and the like, when the fire detection unit detects a fire alarm signal, the fire alarm controller confirms the fire occurrence position according to the fire alarm signal and is linked with the fire-fighting linkage equipment to perform safe fire-extinguishing treatment, and the fire evacuation indicating system is mainly used for guiding the evacuation of trapped people and auxiliary illumination after a normal lighting power supply is cut off when a fire occurs, and mainly comprises emergency illuminating lamps, evacuation exit marks and indicating lamps which are fixedly arranged at the entrance, the corridor and the safe exit of an evacuation channel.
The existing fire alarm system and the existing fire evacuation indication system are two independent systems and need to be purchased and installed respectively, the fire evacuation indication system cannot be linked with the fire alarm system, the evacuation indication direction of the fire evacuation indication system is fixed, the fire evacuation indication system cannot respond to the change of a fire scene, the escape direction cannot be dynamically adjusted, and the difficulty is brought to scene escape.
Disclosure of Invention
Therefore, the invention provides an audible and visual alarm system which is used for solving the problem that an evacuation indication system cannot be linked with a fire alarm system in the prior art.
In order to achieve the above object, the present invention provides an audible and visual alarm system, comprising,
the camera device is arranged in the alarm body and is used for continuously acquiring images in a monitoring area;
the optical frequency detection device is arranged in the alarm body and is used for detecting the optical flash frequency of the highlight area in the monitoring area;
the smoke detection device is arranged in the alarm body and used for detecting smoke concentration in a monitoring area;
the temperature detection device is arranged in the alarm body and is used for detecting the ambient temperature in the monitoring area;
the infrared distance measuring device is arranged in the alarm body and used for measuring the distance in the monitoring area;
the wireless connection device is arranged in the alarm body and used for transmitting instruction prompts to an external management monitoring port;
the voice alarm device is arranged in the alarm body and used for sending voice prompt and alarm to personnel in the monitoring area when fire occurs in the monitoring area;
the LED alarm device is arranged in the alarm body and used for sending light prompt and alarm to personnel in a monitoring area when a fire occurs in the monitoring area;
the central control module is arranged in the alarm body, and is respectively connected with the camera device, the light frequency detection device, the smoke sensing detection device, the temperature detection device, the infrared distance measurement device, the wireless connection device, the voice alarm device and the LED alarm device and used for controlling and adjusting the working state of each device;
the camera device monitors a monitored area all day in real time, when the brightness of the area appearing in the monitored area is higher than the brightness of a standard environment, the light frequency detection device detects the light flash frequency of a highlight area in the monitored area, a flame combustion main light flash frequency and a flame combustion light flash frequency range are arranged in the central control module, the detected light flash frequency is compared with the flame combustion main light flash frequency and the flame combustion light flash frequency range set in the central control module, different fire judgment detection methods are selected by the central control module according to the comparison result, and whether a fire exists is determined according to the selected detection method;
when the central control module judges that a fire exists in the monitoring area, the central control module detects the area of the combustion area through the infrared distance measuring device, the central control module judges the level of the fire according to the area of the combustion area, and when the fire is in the first level in the monitoring area, the central control module sends out an area fire extinguishing instruction to an external management monitoring port through the wireless connection device, and a manager extinguishes the fire in the area; when the secondary fire condition exists in the monitored area, the voice alarm device prompts personnel to concentrate to a safe area through voice, and an external fire-fighting system extinguishes the fire of the combustion area; when the tertiary condition of a fire is in the monitoring area, voice alarm device prompts personnel to evacuate through the safe route, and the fire is extinguished to the burning area by the external fire-fighting system.
Furthermore, the camera device acquires environment continuous images of the monitoring area, transmits the acquired environment continuous images to the central control module, and the central control module performs comprehensive comparison on the environment continuous images and sets standard environment continuous images; the camera device carries out real-time monitoring on the monitoring area all day long, and transmits the real-time environment continuous image to the central control module, the central control module compares the real-time environment continuous image with the standard environment continuous image, and when the real-time brightness of any area in the real-time environment continuous image at a certain moment is higher than the brightness of the area in the standard environment continuous image, the central control module marks the brightness abnormal area as a high-brightness area.
Further, when the central control module determines that the detection area has a highlight area, the central control module performs flash frequency detection on the highlight area through the optical frequency detection device, detects that the flash frequency of the highlight area is P, a flame combustion flash frequency range is arranged in the central control module, the lowest value of the flame combustion flash frequency is Q1, the highest value of the flame combustion flash frequency is Q2, the central control module compares the flash frequency of the highlight area, which is P, with the lowest value of the flame combustion flash frequency Q1 and the highest value of the flame combustion flash frequency Q2,
when P is less than Q1, the central control module judges that no fire exists in the monitoring area;
when the Q1 is not less than P is not less than Q2, the central control module further judges the fire condition of the monitoring area;
when P is larger than Q2, the central control module judges that no fire exists in the monitoring area.
Furthermore, a main flash frequency range of flame combustion is arranged in the central control module, the lowest value of the main flash frequency of flame combustion is Q3, the highest value of the main flash frequency of flame combustion is Q4, when the central control module judges that a highlight area exists in the monitoring area, P is more than or equal to Q1 and less than or equal to Q2, the central control module further compares the flash frequency P of the highlight area in the monitoring area with the lowest value of the main flash frequency of flame combustion being Q3 and the highest value of the main flash frequency of flame combustion being Q4,
when Q1 is more than or equal to P and less than Q3 or Q4 is more than or equal to P and less than or equal to Q2, the central control module judges that the flash frequency is not in the range of the main flash frequency of flame combustion, and the central control module further judges through the smoke detection device;
when Q3 is not less than P is not less than Q4, the central control module judges that the light flash frequency is in the main light flash frequency range of flame combustion, and the central control module further judges through the smoke detection device and the temperature detection device.
Further, the central control module is internally provided with standard smoke detection concentration G2, when Q1 is more than or equal to P and is less than Q3 or Q4 is more than or equal to P and is less than or equal to Q2, the central control module judges that the light flash frequency is not in the range of the main light flash frequency of flame combustion, the standard smoke detection concentration executed by the central control module is G2, the smoke detection device detects the real-time smoke detection concentration Ga at the moment, the central control module compares the standard smoke detection concentration G2 with the real-time smoke detection concentration Ga,
when Ga is less than G2, the central control module judges that no fire exists in the monitoring area;
when Ga is larger than or equal to G2, the central control module judges that a fire exists in the monitoring area.
Further, a standard smoke detection concentration G1 is arranged in the central control module, G1 is greater than G2, when Q3 is not less than P and not more than Q4, the central control module judges that the light flash frequency is in the main light flash frequency range of flame combustion, the standard smoke detection concentration executed by the central control module is G1, the smoke detection device detects the real-time smoke detection concentration Gb at the moment, the central control module compares the standard smoke detection concentration G1 with the real-time smoke detection concentration Gb,
when the Gb is less than G1, the central control module judges that no fire exists in the monitoring area;
and when the Gb is larger than or equal to G1, the central control module further judges through the temperature detection device.
Further, the central control module is internally provided with a standard temperature Tb and a standard temperature difference Delta Tb of the detection area, when Gb is larger than or equal to G1, the temperature detection device detects the temperature of the detection area and detects a real-time temperature Ts, the central control module calculates the standard temperature Tb and the real-time temperature Ts to obtain a real-time temperature difference Delta Ts, Delta Ts = Ts-Tb, the central control module compares the real-time temperature difference Delta Ts with the standard temperature difference Delta Tb,
when the delta Ts is less than the delta Tb, the central control module judges that no fire exists in the monitoring area, and the central control module sends an area detection instruction to an external management monitoring port through the wireless connection device;
and when the delta Ts is more than or equal to the delta Tb, the central control module judges that a fire exists in the monitoring area, and the central control module detects the area of the combustion area through the infrared distance measuring device.
Furthermore, a first preset combustion area S1 and a first preset combustion area S2 are arranged in the central control module, when the central control module judges that a fire exists in the monitored area, the central control module detects the area of the combustion area through the infrared distance measuring device to detect the area Sr of the combustion area, the central control module compares the area Sr of the combustion area with the first preset combustion area S1 and the first preset combustion area S2,
when Sr is less than S1, the central control module judges that the monitored area is a first-class fire, the central control module sends an area fire extinguishing instruction to an external management monitoring port through the wireless connection device, and managers extinguish the area fire;
when Sr is more than or equal to S1 and less than or equal to S2, the central control module judges that the monitored area is a secondary fire, the central control module performs voice alarm on the secondary fire through the voice alarm device, and the central control module performs light alarm on the secondary fire through the LED alarm device;
when Sr is larger than S2, the central control module judges that the monitoring area is in a three-level fire, the central control module carries out three-level fire voice alarm through the voice alarm device, and the central control module carries out three-level fire light alarm through the LED alarm device.
Furthermore, the sound-light alarm system is connected with an external fire fighting system, when the central control module judges that the monitored area is a secondary fire, the voice alarm device is concentrated to a safe area through voice prompt personnel, and the external fire fighting system extinguishes the fire of the combustion area.
Furthermore, a route of a monitoring area is arranged in the central control module, when the central control module judges that the monitoring area is in a three-level fire condition, the central control module determines a safe route according to the comparison between the route of the monitoring area and the combustion area, personnel are prompted to evacuate through the safe route through the voice alarm device, and an external fire fighting system extinguishes the combustion area.
Compared with the prior art, the invention has the advantages that the camera device monitors the monitored area all day in real time, the occurrence of fire and fire hidden danger can be found in time through the analysis of the central control module on the continuous images collected by the camera device, the detection of the light flash frequency of the highlight area by the light frequency detection device further determines whether the fire exists, the fire can be detected in time when the fire is small, the occurrence of serious fire is avoided, the accuracy of the detection is increased through the re-judgment of the smoke detection device and the temperature detection device, the size of the combustion area can be detected through the infrared distance measurement device, the fire is graded according to the size of the combustion area, different voice alarms are carried out according to different fire grades, the harassment of people is avoided, and other dangerous events are further caused, the central control module is also internally provided with a map route of a monitoring area, so that safety route prompt can be performed when people are evacuated in a fire, the escape direction can be dynamically adjusted, and the escape time of people in the fire is greatly prolonged.
Furthermore, the camera device acquires environment continuous images of the monitored area, the central control module performs comprehensive comparison on the environment continuous images, standard environment continuous images are set, the camera device is adopted to monitor the monitored area all day long, and the central control module intelligently analyzes the continuous images transmitted by the camera device and the standard environment continuous images, so that fire and fire hidden danger can be found in time.
Particularly, the optical frequency detection device is adopted to carry out optical flash frequency detection on the highlight area, whether the detected highlight area has fire or not is further judged, meanwhile, the condition that the fire does not exist is eliminated, the misjudgment of the acousto-optic alarm system is avoided, and the life safety event of dangerous personnel caused by the panic of the personnel is avoided.
Furthermore, the main flash frequency range of flame combustion set by the central control module can be further determined after the flash frequency range of flame combustion is judged, so that the detection accuracy is improved.
Further, through detection device and temperature detecting device are further felt to the cigarette, well accuse module is further judged, can get rid of the condition of not depositing the condition of a fire, through accurate detection and judgement, can confirm whether take place the condition of a fire, in time discover the condition of a fire, ensured personnel's life safety.
Especially, through infrared distance measuring device carries out the area detection to the combustion area, confirms the condition of a fire grade according to the size of combustion area, makes different suggestions according to the grade of difference, when being one-level condition of a fire in the monitoring area, explains that the combustion area is less, only need inform the managers to the combustion area carry out the people for putting out a fire can, avoided because open external fire extinguishing systems and the energy that causes is extravagant.
Furthermore, when the fire condition is a second-level fire condition in the monitoring area, the second-level alarm mode is started within the controllable range, the personnel are concentrated to the safe area, the external fire-fighting system is started to extinguish the fire in the burning area, the orderly management of the personnel is guaranteed, and the life safety event of dangerous personnel caused by panic of the personnel is avoided.
Further, when being tertiary condition of a fire in the monitoring area, open tertiary alarm mode, through voice alarm device suggestion personnel evacuate through safe route, are put out a fire by external fire extinguishing systems to the combustion area, have ensured personnel's orderly evacuation, through the contrast of well accuse module to monitoring area's route and combustion area, the direction of fleing is fleed in dynamic adjustment, gets rid of the difficulty for the scene is fleed, very big degree guarantee personnel's life safety.
Drawings
FIG. 1 is a schematic structural diagram of the sound and light alarm system of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, which is a schematic structural diagram of the sound and light alarm system of the present invention, the present invention discloses a sound and light alarm system, comprising a camera device 1, a light frequency detection device 2, a smoke detection device 3, a temperature detection device 4, an infrared distance measurement device 5, a wireless connection device 6, a voice alarm device 7, an LED alarm device 8, and a central control module 9, wherein,
the camera device 1 is arranged in the alarm body and is used for continuously acquiring images in a monitoring area;
the optical frequency detection device 2 is arranged in the alarm body and is used for carrying out optical flash frequency detection on a highlight area in a monitoring area;
the smoke detection device 3 is arranged in the alarm body and is used for detecting smoke concentration in a monitoring area;
the temperature detection device 4 is arranged in the alarm body and is used for detecting the environmental temperature in the monitoring area;
the infrared distance measuring device 5 is arranged inside the alarm body and used for measuring the distance in the monitoring area;
the wireless connection device 6 is arranged in the alarm body and used for transmitting instruction prompts to an external management monitoring port;
the voice alarm device 7 is arranged in the alarm body and used for sending voice prompt and alarm to personnel in the monitoring area when a fire occurs in the monitoring area;
the LED alarm device 8 is arranged in the alarm body and used for sending light prompt and alarm to personnel in the monitoring area when a fire occurs in the monitoring area;
the central control module 9 is arranged inside the alarm body, and the central control module 9 is respectively connected with the camera device 1, the light frequency detection device 2, the smoke detection device 3, the temperature detection device 4, the infrared distance measurement device 5, the wireless connection device 6, the voice alarm device 7 and the LED alarm device 8 and is used for controlling and adjusting the working states of the devices;
the camera device 1 monitors a monitored area all day in real time, when the brightness of the area appearing in the monitored area is higher than the brightness of a standard environment, the light frequency detection device 2 detects the light flash frequency of a highlight area in the monitored area, a flame combustion main light flash frequency and a flame combustion light flash frequency range are arranged in the central control module 9, the detected light flash frequency is compared with the flame combustion main light flash frequency and the flame combustion light flash frequency range set in the central control module 9, different fire judgment detection methods are selected according to the comparison result of the central control module 9, and whether a fire exists or not is determined according to the selected detection method;
when the central control module 9 judges that a fire exists in the monitoring area, the central control module 9 detects the area of the combustion area through the infrared distance measuring device 5, the central control module 9 judges the level of the fire according to the area of the combustion area, and when the fire is in a first level in the monitoring area, the central control module 9 sends an area fire extinguishing instruction to an external management monitoring port through the wireless connection device 6, and a manager extinguishes the fire in the area; when the secondary fire condition exists in the monitored area, the voice alarm device 7 prompts personnel to concentrate to a safe area through voice, and an external fire-fighting system extinguishes the fire of the burning area; when the tertiary condition of a fire is in the monitoring area, voice alarm device prompts personnel to evacuate through the safe route, and the fire is extinguished to the burning area by the external fire-fighting system.
The camera device 1 monitors a monitoring area all day in real time, the occurrence of fire and fire hidden danger can be found in time through the analysis of the central control module 9 on continuous images collected by the camera device 1, whether fire exists or not is further determined through the detection of the light flash frequency of a highlight area by the light frequency detection device 2, the fire can be detected in time when the fire is small, the occurrence of serious fire is avoided, the accuracy of detection is improved through the re-judgment of the smoke sensing detection device 3 and the temperature detection device 4, the size of a combustion area can be detected through the infrared distance measurement device 5, the fire is graded according to the size of the combustion area, different voice alarms are carried out according to different fire grades, the disturbance of personnel is avoided, and other dangerous events are further caused, a map of the monitoring area is also arranged in the central control module 9, the fire escape system can prompt the safe route when people are evacuated in a fire, can dynamically adjust the escape direction, and greatly improves the escape time of people in the fire.
Specifically, the camera device 1 acquires environment continuous images of the monitored area, transmits the acquired environment continuous images to the central control module 9, and the central control module 9 performs comprehensive comparison on the environment continuous images and sets standard environment continuous images; the camera device 1 monitors the monitored area in real time all day long, and transmits the real-time environment continuous image to the central control module 9, the central control module 9 compares the real-time environment continuous image with the standard environment continuous image, and when the real-time brightness of any area in the real-time environment continuous image at a certain moment is higher than the brightness of the area in the standard environment continuous image, the central control module 9 marks the brightness abnormal area as a high-brightness area.
The monitoring of the monitoring area by the camera device 1 all day is adopted, and the occurrence of fire and fire hidden danger can be found in time through the intelligent analysis of the central control module 9.
In the present embodiment, Q1=3HZ, Q2=25HZ, Q3=7HZ, Q4=12 HZ;
specifically, when the central control module 9 determines that a highlight area exists in the detection area, the central control module 9 performs flash frequency detection on the highlight area through the optical frequency detection device 2, detects that the flash frequency of the highlight area is P, a flame combustion flash frequency range is arranged in the central control module 9, the lowest flame combustion flash frequency is 3HZ, the highest flame combustion flash frequency is 25HZ, the central control module 9 compares the flash frequency of the highlight area, which is P, with the lowest flame combustion flash frequency which is 3HZ and the highest flame combustion flash frequency which is 25HZ,
when P is less than 3HZ, the central control module 9 judges that no fire exists in the monitoring area;
when P is more than or equal to 3HZ and less than or equal to 25HZ, the central control module 9 further judges the fire condition of the monitoring area;
when P is larger than 25HZ, the central control module 9 judges that no fire exists in the monitoring area.
The optical frequency detection device 2 is adopted to detect the optical flashing frequency of the highlight area, whether the detected highlight area has fire or not is further judged, meanwhile, the condition that the fire does not exist is eliminated, the misjudgment of the acousto-optic alarm system is avoided, and the life safety event of dangerous personnel caused by the panic of the personnel is avoided.
Specifically, the central control module 9 is internally provided with a main flash frequency range of flame combustion, the lowest value of the main flash frequency of flame combustion is 7HZ, the highest value of the main flash frequency of flame combustion is 12HZ, when the central control module 9 judges that a highlight area exists in the monitoring area, P is not less than 3HZ and not more than 25HZ, the central control module 9 further compares the flash frequency P of the highlight area in the monitoring area with the lowest value of the main flash frequency of flame combustion being 7HZ and the highest value of the main flash frequency of flame combustion being 12HZ,
when P is more than or equal to 3HZ and less than 7HZ or P is more than 12HZ and less than or equal to 25HZ, the central control module 9 judges that the flash frequency is not in the main flash frequency range of flame combustion, and the central control module 9 further judges through the smoke detection device 3;
when P is more than or equal to 7HZ and less than or equal to 12HZ, the central control module 9 judges that the light flash frequency is in the range of the main light flash frequency of flame combustion, and the central control module 9 further judges through the smoke detection device 3 and the temperature detection device 4.
The main flare frequency range of flame combustion set by the central control module 9 can be further determined after the flare frequency range of flame combustion is judged, and the detection accuracy is improved.
Specifically, the central control module 9 is internally provided with a standard smoke detection concentration G2, when P is more than or equal to 3HZ and less than 7HZ or P is more than 12HZ and less than or equal to 25HZ, the central control module 9 judges that the flash frequency is not in the main flash frequency range of flame combustion, the standard smoke detection concentration executed by the central control module 9 is G2, the smoke detection device 3 detects the real-time smoke detection concentration Ga at the moment, the central control module 9 compares the standard smoke detection concentration G2 with the real-time smoke detection concentration Ga,
when Ga is less than G2, the central control module 9 judges that no fire exists in the monitoring area;
when Ga is larger than or equal to G2, the central control module 9 judges that a fire exists in the monitoring area.
Specifically, the central control module is internally provided with standard smoke detection concentration G1, G1 is greater than G2, when P is greater than or equal to 7 and less than or equal to 12, the central control module 9 judges that the light flash frequency is in the main light flash frequency range of flame combustion, the standard smoke detection concentration executed by the central control module 9 is G1, the smoke detection device 3 detects the real-time smoke detection concentration Gb at the moment, the central control module 9 compares the standard smoke detection concentration G1 with the real-time smoke detection concentration Gb,
when Gb is less than G1, the central control module 9 judges that no fire exists in the monitoring area;
when Gb is larger than or equal to G1, the central control module 9 makes further determination through the temperature detection device 4.
Specifically, the central control module 9 is internally provided with a standard temperature Tb and a standard temperature difference Δ Tb of the detection area, when Gb is greater than or equal to G1, the temperature detection device 4 detects the temperature of the detection area and detects a real-time temperature Ts, the central control module 9 calculates the standard temperature Tb and the real-time temperature Ts to obtain a real-time temperature difference Δ Ts, Δ Ts = Ts-Tb, the central control module 9 compares the real-time temperature difference Δ Ts and the standard temperature difference Δ Tb,
when the delta Ts is less than the delta Tb, the central control module 9 judges that no fire exists in the monitoring area, and the central control module 9 sends an area detection instruction to an external management monitoring port through the wireless connection device 6;
when the delta Ts is larger than or equal to the delta Tb, the central control module 9 judges that a fire exists in the monitoring area, and the central control module 9 detects the area of the combustion area through the infrared distance measuring device 5.
Through detection device 3 and the further detection of temperature-detecting device 4 are felt to the cigarette, well accuse module 9 is further judged, can get rid of the condition of not depositing the condition of a fire, through accurate detection and judgement, can confirm whether take place the condition of a fire, in time discover the condition of a fire, ensured personnel's life safety.
Specifically, a first preset combustion area S1 and a first preset combustion area S2 are arranged in the central control module 9, when the central control module 9 determines that a fire exists in the monitored area, the central control module 9 detects the area of the combustion area through the infrared distance measuring device 5, detects the area Sr of the combustion area, the central control module 9 compares the area Sr of the combustion area with the first preset combustion area S1 and the first preset combustion area S2,
when Sr is less than S1, the central control module 9 judges that the monitored area is a first-class fire, the central control module 9 sends an area fire extinguishing instruction to an external management monitoring port through the wireless connection device 6, and a manager extinguishes the area;
when Sr is more than or equal to S1 and less than or equal to S2, the central control module 9 judges that the monitored area is a secondary fire, the central control module 9 performs voice alarm on the secondary fire through the voice alarm device 7, and the central control module 9 performs light alarm on the secondary fire through the LED alarm device 8;
when Sr is more than S2, the central control module 9 judges that the monitored area is a three-level fire, the central control module 9 performs three-level fire voice alarm through the voice alarm device 7, and the central control module 9 performs three-level fire light alarm through the LED alarm device 8.
Through infrared distance measuring device 5 carries out the area detection to the combustion area, confirms the condition of a fire grade according to the size of combustion area, makes different suggestion according to the grade of difference, when being the one-level condition of a fire in the monitoring area, explains that the combustion area is less, only need inform the managers to the combustion area carry out the people for putting out a fire can, avoided the energy waste because open external fire extinguishing systems and cause.
Particularly, audible and visual alarm system links to each other with external fire extinguishing systems, works as well as when central control module 9 judges that the monitoring area is the second grade condition of a fire, voice alarm device 7 concentrates to safe region through voice prompt personnel, is put out a fire by external fire extinguishing systems to the combustion area.
When the secondary fire condition exists in the monitoring area, the secondary alarm mode is started within the controllable range, the personnel are concentrated to the safe area, the external fire-fighting system is started to extinguish the fire in the burning area, the orderly management of the personnel is guaranteed, and the life safety event of dangerous personnel caused by panic of the personnel is avoided.
Specifically, a route of a monitoring area is arranged in the central control module 9, when the central control module 9 judges that a tertiary fire condition exists in the monitoring area, the central control module 9 determines a safe route according to the comparison between the route of the monitoring area and a combustion area, personnel are prompted to evacuate through the safe route through the voice alarm device, and an external fire fighting system extinguishes the combustion area.
When being tertiary condition of a fire in the monitoring area, open tertiary alarm mode, through voice alarm device suggestion personnel are evacuated through safe route, are put out a fire by external fire extinguishing systems to the combustion area, have ensured personnel's orderly evacuation, through well accuse module 9 to monitoring area's route and combustion area's contrast, the direction of fleing is fleed in dynamic adjustment, gets rid of the difficulty for the scene is fleed, very big degree guarantee personnel's life safety.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An acousto-optic alarm system is characterized by comprising,
the camera device is arranged in the alarm body and is used for continuously acquiring images in a monitoring area;
the optical frequency detection device is arranged in the alarm body and is used for detecting the optical flash frequency of the highlight area in the monitoring area;
the smoke detection device is arranged in the alarm body and used for detecting smoke concentration in a monitoring area;
the temperature detection device is arranged in the alarm body and is used for detecting the ambient temperature in the monitoring area;
the infrared distance measuring device is arranged in the alarm body and used for measuring the distance in the monitoring area;
the wireless connection device is arranged in the alarm body and used for transmitting instruction prompts to an external management monitoring port;
the voice alarm device is arranged in the alarm body and used for sending voice prompt and alarm to personnel in the monitoring area when fire occurs in the monitoring area;
the LED alarm device is arranged in the alarm body and used for sending light prompt and alarm to personnel in a monitoring area when a fire occurs in the monitoring area;
the central control module is arranged in the alarm body, and is respectively connected with the camera device, the light frequency detection device, the smoke sensing detection device, the temperature detection device, the infrared distance measurement device, the wireless connection device, the voice alarm device and the LED alarm device and used for controlling and adjusting the working state of each device;
the camera device monitors a monitored area all day in real time, when the brightness of the area appearing in the monitored area is higher than the brightness of a standard environment, the light frequency detection device detects the light flash frequency of a highlight area in the monitored area, a flame combustion main light flash frequency and a flame combustion light flash frequency range are arranged in the central control module, the detected light flash frequency is compared with the flame combustion main light flash frequency and the flame combustion light flash frequency range set in the central control module, different fire judgment detection methods are selected by the central control module according to the comparison result, and whether a fire exists is determined according to the selected detection method;
when the central control module judges that a fire exists in the monitoring area, the central control module detects the area of the combustion area through the infrared distance measuring device, the central control module judges the level of the fire according to the area of the combustion area, and when the fire is in the first level in the monitoring area, the central control module sends out an area fire extinguishing instruction to an external management monitoring port through the wireless connection device, and a manager extinguishes the fire in the area; when the secondary fire condition exists in the monitored area, the voice alarm device prompts personnel to concentrate to a safe area through voice, and an external fire-fighting system extinguishes the fire of the combustion area; when the tertiary condition of a fire is in the monitoring area, voice alarm device prompts personnel to evacuate through the safe route, and the fire is extinguished to the burning area by the external fire-fighting system.
2. The sound-light alarm system of claim 1, wherein the camera device collects continuous images of the environment of the monitored area and transmits the collected continuous images of the environment to the central control module, and the central control module performs comprehensive comparison on the continuous images of the environment and sets a standard continuous image of the environment; the camera device carries out real-time monitoring on the monitoring area all day long, and transmits the real-time environment continuous image to the central control module, the central control module compares the real-time environment continuous image with the standard environment continuous image, and when the real-time brightness of any area in the real-time environment continuous image at a certain moment is higher than the brightness of the area in the standard environment continuous image, the central control module marks the brightness abnormal area as a high-brightness area.
3. The audible and visual alarm system according to claim 2, wherein when said central control module determines that there is a highlight region in the detection region, said central control module performs a flash frequency detection on said highlight region through said optical frequency detection device, and detects that the flash frequency of the highlight region is P, said central control module has a flame burning flash frequency range therein, the lowest flame burning flash frequency value is Q1, and the highest flame burning flash frequency value is Q2, said central control module compares the flash frequency of the highlight region P with the lowest flame burning flash frequency value Q1 and the highest flame burning flash frequency value Q2,
when P is less than Q1, the central control module judges that no fire exists in the monitoring area;
when the Q1 is not less than P is not less than Q2, the central control module further judges the fire condition of the monitoring area;
when P is larger than Q2, the central control module judges that no fire exists in the monitoring area.
4. The sound-light alarm system of claim 3, wherein the central control module has a main flash frequency range for flame combustion, the lowest value of the main flash frequency for flame combustion is Q3, the highest value of the main flash frequency for flame combustion is Q4, when the central control module determines that there is a highlight region in the monitoring region, P is not less than Q1 and not more than Q2, the central control module compares the flash frequency P of the highlight region in the monitoring region with the lowest value of the main flash frequency for flame combustion being Q3, and the highest value of the main flash frequency for flame combustion being Q4,
when Q1 is more than or equal to P and less than Q3 or Q4 is more than or equal to P and less than or equal to Q2, the central control module judges that the flash frequency is not in the range of the main flash frequency of flame combustion, and the central control module further judges through the smoke detection device;
when Q3 is not less than P is not less than Q4, the central control module judges that the light flash frequency is in the main light flash frequency range of flame combustion, and the central control module further judges through the smoke detection device and the temperature detection device.
5. The sound-light alarm system of claim 4, wherein the central control module is provided with a standard smoke detection concentration G2, when Q1 < P < Q3 or Q4 < P < Q2, the central control module determines that the flash frequency is not within the main flash frequency range of flame combustion, the standard smoke detection concentration executed by the central control module is G2, the smoke detection device detects the real-time smoke detection concentration Ga, the central control module compares the standard smoke detection concentration G2 with the real-time smoke detection concentration Ga,
when Ga is less than G2, the central control module judges that no fire exists in the monitoring area;
when Ga is larger than or equal to G2, the central control module judges that a fire exists in the monitoring area.
6. The sound-light alarm system of claim 5, wherein the central control module is provided with a standard smoke detection concentration G1, G1 is greater than G2, when Q3 is greater than or equal to P and less than or equal to Q4, the central control module determines that the light flash frequency is within the main light flash frequency range of flame combustion, the standard smoke detection concentration executed by the central control module is G1, the smoke detection device detects the real-time smoke detection concentration Gb at the moment, the central control module compares the standard smoke detection concentration G1 with the real-time smoke detection concentration Gb,
when the Gb is less than G1, the central control module judges that no fire exists in the monitoring area;
and when the Gb is larger than or equal to G1, the central control module further judges through the temperature detection device.
7. The audible and visual alarm system according to claim 6, wherein a standard temperature Tb and a standard temperature difference Δ Tb of the detection area are set in the central control module, when Gb is greater than or equal to G1, the temperature detection device detects the temperature of the detection area and detects a real-time temperature Ts, the central control module calculates the standard temperature Tb and the real-time temperature Ts to obtain a real-time temperature difference Δ Ts, Δ Ts = Ts-Tb, and the central control module compares the real-time temperature difference Δ Ts with the standard temperature difference Δ Tb,
when the delta Ts is less than the delta Tb, the central control module judges that no fire exists in the monitoring area, and the central control module sends an area detection instruction to an external management monitoring port through the wireless connection device;
and when the delta Ts is more than or equal to the delta Tb, the central control module judges that a fire exists in the monitoring area, and the central control module detects the area of the combustion area through the infrared distance measuring device.
8. The sound-light alarm system of claim 7, wherein a first preset burning area S1 and a first preset burning area S2 are provided in the central control module, when the central control module determines that a fire exists in the monitored area, the central control module detects the area of the burning area through the infrared distance measuring device, detects the area Sr of the burning area, compares the area Sr of the burning area with the first preset burning area S1 and the first preset burning area S2,
when Sr is less than S1, the central control module judges that the monitored area is a first-class fire, the central control module sends an area fire extinguishing instruction to an external management monitoring port through the wireless connection device, and managers extinguish the area fire;
when Sr is more than or equal to S1 and less than or equal to S2, the central control module judges that the monitored area is a secondary fire, the central control module performs voice alarm on the secondary fire through the voice alarm device, and the central control module performs light alarm on the secondary fire through the LED alarm device;
when Sr is larger than S2, the central control module judges that the monitoring area is in a three-level fire, the central control module carries out three-level fire voice alarm through the voice alarm device, and the central control module carries out three-level fire light alarm through the LED alarm device.
9. The sound-light alarm system of claim 8, wherein the sound-light alarm system is connected with an external fire-fighting system, and when the central control module determines that the monitored area is a secondary fire, the voice alarm device prompts personnel to concentrate to a safe area through voice, and the external fire-fighting system extinguishes the burning area.
10. The sound-light alarm system of claim 8, wherein the central control module is provided with a route of a monitoring area, when the central control module determines that the monitoring area is in a three-level fire, the central control module determines a safe route according to the comparison between the route of the monitoring area and the combustion area, the voice alarm device prompts personnel to evacuate through the safe route, and an external fire protection system extinguishes the combustion area.
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