CN209821986U

CN209821986U - Fire monitoring system

Info

Publication number: CN209821986U
Application number: CN201920230547.9U
Authority: CN
Inventors: 吴哲
Original assignee: Shenzhen Lumi United Technology Co Ltd
Current assignee: Shenzhen Lumi United Technology Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2019-12-20
Anticipated expiration: 2029-02-22

Abstract

The application discloses fire monitoring system relates to fire detection technical field. This fire monitoring system can include smoke alarm, at least one environmental sensor and gateway, smoke alarm is used for detecting indoor smog concentration, environmental sensor is used for detecting external environment parameter, the gateway respectively with smoke alarm and environmental sensor are connected. The system can reduce the false alarm rate of fire and can increase the flexibility of fire prediction by arranging the smoke alarm and the at least one environmental sensor.

Description

Fire monitoring system

Technical Field

The application relates to the technical field of fire detection, in particular to a fire monitoring system.

Background

The fire disaster is a common disaster in daily life, and is particularly suitable for places with dense personnel or valuable assets, such as houses, factories, warehouses, office buildings or public places. At present, a plurality of fire control or detection systems exist, but the false alarm rate of the systems is high, so that accurate and effective fire detection is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a fire monitoring system to improve the above-mentioned drawbacks.

The embodiment of the application provides a fire monitoring system, this fire monitoring system includes smoke alarm, at least one environmental sensor and gateway, smoke alarm is used for detecting indoor smog concentration, environmental sensor is used for detecting external environment parameter, the gateway respectively with smoke alarm and environmental sensor connect, are used for handling smoke alarm and environmental sensor upload's sensory data.

Compared with the prior art, this application embodiment provides a fire monitoring system accomplishes the control of conflagration jointly through smoke alarm, at least one environmental sensor and gateway, and wherein, smoke alarm mainly used detects indoor smog concentration, environmental sensor is used for detecting external environment parameter, and gateway mainly used handles the sensory data that smoke alarm and environmental sensor uploaded, this gateway respectively with smoke alarm and environmental sensor connect. The data collected by the sensors are comprehensively analyzed by the gateway, the indexes of the acquired environment are different if the types of the sensors are different, the false alarm rate of fire can be reduced to a great extent by comprehensively analyzing the different types of sensing data, and the flexibility of fire monitoring can be improved.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

FIG. 1 is a block diagram of a fire monitoring system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating the installation of various sensors in a fire monitoring system provided by an embodiment of the present application;

fig. 3 is a block diagram illustrating an environment sensor in a fire monitoring system according to an embodiment of the present disclosure.

Fig. 4 is a block diagram illustrating a structure of a gateway in a fire monitoring system according to an embodiment of the present disclosure;

fig. 5 is a block diagram illustrating a fire monitoring system according to another embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

At present, the smoke alarm mainly used for fire detection is only used for independently detecting the smoke concentration in the air, so that false alarm is easily caused by water vapor or a small amount of dust. The principle of the smoke alarm is that whether a fire disaster occurs or not is judged by detecting the smoke concentration in the air, and when the fire disaster just occurs, the smoke alarm is difficult to find out in advance due to the fact that the fire disaster is not violent in combustion and the smoke concentration is not high. In order to solve the problems of the smoke alarm, a novel smoke alarm is provided, and the novel smoke alarm assists the smoke alarm by additionally arranging other sensors, so that misjudgment of fire is reduced. However, the working principle of the smoke alarm generally needs to be installed on the ceiling, so that the detection angles and the detection distances of other sensors for auxiliary judgment are limited, namely, the auxiliary sensors can intelligently detect from the ceiling, and the problems of shielding and inaccurate detection easily exist. The existing novel smoke alarm cannot timely find the conditions of early fire or smoldering and the like aiming at a plurality of fire scenes, so that people cannot timely take countermeasures aiming at the fire.

Based on the above problems, the inventor has conducted a series of studies on the existing fire monitoring system, found the difficulty in using the existing fire monitoring system, and proposed the fire monitoring system in the embodiment of the present application in consideration of the requirements of the user in practical application.

The fire monitoring system provided by the embodiment of the present application will be described in detail by specific embodiments.

Referring to fig. 1, fig. 1 is a block diagram of a fire monitoring system 100 according to an embodiment of the present disclosure.

In this embodiment, the fire monitoring system 100 may include a smoke alarm 110, at least one environmental sensor 120, and a gateway 130, where the smoke alarm 110 is configured to detect indoor smoke concentration, the environmental sensor 120 is configured to detect external environmental parameters, and the gateway 130 is connected to the smoke alarm 110 and the environmental sensor 120, respectively.

In this embodiment, the smoke alarm 110 is used for detecting the smoke concentration in a room, specifically, the smoke alarm 110 may include a smoke detector, a voltage comparator, a speaker, and the like, the smoke detector is used for detecting the smoke concentration, and is normally in a state of electric field balance, and when smoke enters the smoke alarm 110, the balance relationship is destroyed, mainly because of refraction, reflection, and diffusion effects of smoke particles, at this time, the voltage comparator may generate a trigger signal, and the trigger signal may trigger the speaker, and then an alarm is given. Specifically, the smoke alarm 110 may be an ion smoke alarm or a photoelectric smoke alarm, and the specific type of alarm is not specifically limited herein.

Additionally, the smoke alarm 110 may be mounted within a container, which may include a bottom surface, a top surface, and side surfaces, the bottom surface and the top surface being connected by the side surfaces. The container can be any place such as a room, a factory building or a mall having a bottom, a top and sides, and is represented by a rectangular frame shown in fig. 2. It can be seen from figure 2 that the smoke alarm 110 is mounted on the top surface of the container and the distance between the smoke alarm 110 and the lighting mounted on the top surface of the container is at least 50 cm. Additionally, the distance between the smoke alarm 110 and the side of the container is at least 60cm, while the distance between the smoke alarm 110 and the air conditioner installed in the container is at least 150 cm.

It will be appreciated from the above description that various factors of the container must be taken into account when installing the smoke alarm 110, i.e. the smoke alarm 110 must be installed in the appropriate location of the container, i.e. the smoke alarm 110 must be installed according to the state mandated regulations for fire safety products. In addition, electronic devices such as air conditioners, lighting, doors and windows, etc., which may affect the operation of the smoke alarm 110, are also considered when installing the smoke alarm 110. The plurality of smoke alarms 110 can be installed indoors at the same time, the installation number of the smoke alarms 110 is mainly determined by the support condition of the gateway 130, in this embodiment, the gateway 130 may be a ZigBee gateway, which can support 64 sub-devices, and the gateway 130 may cover a network range with a diameter of 20-30 m, and the number of the smoke alarms 110 in this range is generally not more than 15, that is, the number of the smoke alarms 110 in the fire monitoring system 100 may be multiple, but the number of the smoke alarms cannot exceed 15, because the number of the smoke alarms exceeds 15, the coverage of the network in a room is affected, and a certain resource waste is caused, because the requirement on the number of the smoke alarms 110 in this embodiment is not very high, as long as the smoke situation can be correctly monitored. It should be noted that when multiple smoke alarms 110 are installed in a room at the same time, the sensitivity of the multiple smoke alarms 110 is not the same.

In one embodiment, the smoke alarm 110 has two states, a normal state and an abnormal state, and the abnormal state may include a self-test state, an alarm state, a simulated fire state, a low battery state, a poor signal strength state, an intruded state or a removed state. The normal state of the smoke alarm 110 refers to a state where the smoke alarm 110 is in when no fire is present in the room, and when the smoke alarm 110 is in the normal state, the collected sensing data is within a normal range of smoke, and when the sensing data exceeds the normal range, it indicates that the smoke alarm 110 is abnormal, and a fire may occur in the room. For example, the normal range of the data sensed by the smoke alarm 110 is 0-0.06%, and a range outside this range indicates that the state of the smoke alarm 110 is abnormal.

The self-checking state refers to that the smoke alarm 110 checks its own device, that is, the self-checking state is mainly used to determine whether the smoke alarm 110 has its own device operating normally, and a user can test whether the function of the smoke alarm 110 is normal by clicking a test key, and the self-checking period of the smoke alarm 110 may be one day, one week, or one month, and the specific length of the self-checking period of the smoke alarm 110 is not specifically limited here. In addition, the self-checking state of the smoke alarm 110 is mainly to check whether the alarm function is normal, that is, to check the alarm sound of the smoke alarm 110, all the indicator lights on the panel, the display, and the like.

The alarm state refers to that sensing data acquired by the smoke alarm 110 is abnormal, and when the smoke alarm 110 is in the alarm state, it is likely that a fire occurs, at this time, the smoke alarm 110 may send alarm information, and the alarm information is sent out by an acousto-optic device or directly sent to a terminal device.

A simulated fire condition refers to a condition in which there is no anomaly in the sensed data, but in which the smoke alarm 110 sounds an alarm, for example, and the indicator light is also flashing. The simulated fire condition and the alarm condition are similar, and all are the smoke alarm 110 sending out alarm information, except that the sensing data collected for the simulated fire condition is normal, and the sensing data for the alarm condition is abnormal. Alternatively, the alarm state may be automatically triggered by the smoke alarm 110, and the simulated fire state may be manually triggered by the user, typically by setting the smoke alarm 110 to simulate a fire during a fire drill.

The low battery state is a state in which the smoke alarm 110 is low, and may be indicated by an indicator light, for example, a red light may indicate that the smoke alarm 110 is low, and the battery needs to be replaced or recharged. The signal strength difference state refers to a difference in network signal of the smoke alarm 110, and it can be determined whether the smoke alarm 110 can normally acquire the network signal.

The invaded state or the removed state refers to the smoke alarm 110 being invaded or removed, and the invasion and the removal can be divided into a plurality of situations, when the smoke sensing part of the smoke alarm 110 is separated from the wireless base, for example, the smoke sensing part is stolen or removed, the smoke alarm 110 reports the smoke sensing lost alarm information to inform a monitoring person for timely processing; when the wireless base of the smoke alarm 110 is opened, the smoke alarm 110 reports base opening alarm information to inform monitoring personnel for timely processing; when the smoke alarm 110 is in an undervoltage or fault state, undervoltage or fault alarm information is reported to a remote monitoring platform in real time in a wireless mode, so that monitoring personnel can know and process the information in time.

It should be noted that, in this embodiment, the size of the sensing data acquired by the smoke alarm 110 is related to the size of the sensitivity of the smoke alarm 110, and the greater the sensitivity of the smoke alarm 110 is, the more sensitive the smoke alarm is to the smoke in the air, that is, the sensitivity of the smoke alarm 110 is improved, so that the smoke alarm can detect whether the smoke exists in the air more sensitively. However, the sensitivity of the smoke alarm 110 cannot be too high, and when it is too high, a fire accident may easily occur, for example, smoke may be generated when a room is cooking, and at this time, if the sensitivity of the smoke alarm 110 is low, the smoke generated when cooking may not be mistaken for smoke generated by a fire, and if the sensitivity of the smoke alarm 110 is high, the smoke generated at this time may be determined as fire smoke, and a fire accident may occur. According to the embodiment, when whether a fire disaster occurs is judged, the sensitivity of the smoke alarm 110 can be set or adjusted according to actual conditions, so that the fire disaster monitoring is more accurate, and the false alarm rate of the fire disaster can be reduced to a great extent.

The smoke alarm 110 is connected to the gateway 130, and when the smoke alarm 110 acquires smoke data, it may determine that the acquired smoke data is absent, and then upload the determination result to the gateway 130 through a network. After the smoke data is acquired, the smoke alarm 110 may also directly upload the data to the gateway 130 through the network without determining the smoke data, and after receiving the smoke data, the gateway 130 may determine whether the state of the smoke alarm 110 is normal according to the smoke data. The specific determination of where the state of the smoke alarm 110 is to be made is not specifically limited and may be selected based on the actual circumstances.

In this embodiment, the environmental sensor 120 is used to detect external environmental parameters, and the environmental sensor 120 is connected to the gateway 130, where the external environmental parameters may include illumination intensity, temperature and humidity, and heat source. As can be seen from fig. 3, the environmental sensors 120 may include an illumination sensor 121, a temperature and humidity sensor 122, an infrared sensor 123, and the like.

In this embodiment, the light sensor 121 is used for detecting the intensity of light in a room, specifically, the light sensor 121 may include a light receiving surface and a photoelectric conversion element, the light receiving surface may collect light irradiated on the light receiving surface, and the photoelectric conversion element converts the light signal into an electrical signal, and signal values of the electrical signals corresponding to the light signals with different intensities are different, so that the intensity of the external light may be detected, specifically, the light sensor 121 may be a sensor of a model such as HA 2003.

In addition, the illumination sensor 121 may be installed at different angles of a room, so as to detect the brightness of the room when a fire is not occurring. At least two illumination sensors 121 are installed in one room, each illumination sensor 121 is installed on the top surface or the side surface of the container, at least two different detection directions exist, and the distance between each illumination sensor 121 and the ground of the container ranges from 145cm to 155 cm. For example, the light sensor 121 is located at a distance of about 150cm from the floor of the container. The illumination sensor 121 may be installed near the center of the ceiling in a room, and the illumination sensor 121 should be installed to avoid direct irradiation of sunlight, lamps, etc. as much as possible. In addition, the installation of the illumination sensor 121 also needs to consider the problems of window and house shielding, so that the misjudgment of the fire monitoring system 100 on the fire can be reduced.

The illumination sensor 121 is connected to the gateway 130, and when a fire occurs, the illumination sensor 121 may detect an abnormal illumination change and transmit the illumination change value to the gateway 130 through a network, where the illumination change value is illumination data collected by the illumination sensor 121. The abnormal illumination change refers to rapid and rapid change of illumination, and the abnormal change may be environmental illumination change caused by flame, and whether a fire disaster occurs can be identified by identifying the change of brightness of the flame.

In this embodiment, temperature and humidity sensor 122 is used for detecting indoor temperature and humidity, and specifically, this temperature and humidity sensor 122 can include temperature and humidity acquisition module and wireless transmission module, and temperature and humidity acquisition module can include humidity probe, humidity acquisition circuit, temperature sensor etc. again. Humidity probe is used for gathering humidity data to with this humidity data transmission to humidity acquisition circuit, humidity acquisition circuit can be with this humidity data conversion after receiving this humidity data signal of telecommunication, and temperature sensor is used for gathering temperature data and converts this temperature data into the signal of telecommunication, and wireless module is used for uploading to gateway 130 with the data that humiture acquisition module acquireed. Obviously, the temperature and humidity sensor 122 mainly functions to convert the temperature and humidity in the environment into an electrical signal that is easy to be measured and processed, and specifically, the temperature and humidity sensor 122 may be a SCTHWA43SDS, a THT-N163A, or a THT-N263A type sensor.

In addition, the temperature and humidity sensor 122 can be installed at a suitable position in a room, so as to detect the indoor temperature and humidity conditions. Only one temperature and humidity sensor 122 can be installed in one room, or a plurality of temperature and humidity sensors 122 can be installed at the same time, and the specific number of the temperature and humidity sensors is not limited here. The temperature and humidity sensor 122 can be installed on the side surface of the container, and the distance between the temperature and humidity sensor 122 and the ground of the container ranges from 145cm to 155 cm. For example, the temperature/humidity sensor 122 is located at a distance of 150cm from the floor of the container. The temperature and humidity sensor 122 is installed in consideration of the influence of an air conditioner, a fan, a window, a humidifier, etc., so that the misjudgment of the fire monitoring system 100 on the fire can be reduced.

The temperature and humidity sensor 122 is connected to the gateway 130, and the temperature and humidity sensor 122 can detect abnormal temperature change and humidity change when a fire occurs, where the abnormal temperature change refers to a rapid temperature rise in a short time without a tendency of decreasing, and the reason for this is that the flame will cause an indoor temperature rise, which accelerates the evaporation of liquid, and if the humidity rises for a long time and deviates from a normal value too much, it can be concluded that the situation is caused by the fire. The temperature and humidity sensor 122 may transmit the abnormal change value to the gateway 130 through a network, where the abnormal change value is the abnormal temperature and humidity data collected by the temperature and humidity sensor 122.

In this embodiment, the infrared sensor 123 is configured to detect an indoor heat source, specifically, the infrared sensor 123 may include a detection element and a conversion circuit, the detection element may collect infrared images of an object, and the conversion circuit converts the infrared signals into electrical signals, that is, the infrared sensor 123 is based on infrared radiation imaging of the object, because of existence of black body radiation, electromagnetic radiation is performed on any object according to different temperatures, and whether a fire occurs is determined by detecting a specific special heat source in an environment. Specifically, the infrared sensor 123 may be a sensor of a model such as P228, LHI958, or PD 632.

In addition, the infrared sensor 123 may be installed at a suitable position in a room, so as to detect a heat source condition in the room. Only one infrared sensor 123 may be installed in one room, or a plurality of infrared sensors 123 may be installed at the same time, and the specific number of the installed infrared sensors is not limited here. The temperature and humidity sensor 122 like the infrared sensor 123 can also be installed on the side surface of the container, and the distance between the infrared sensor 123 and the ground of the container ranges from 145cm to 155 cm. For example, the infrared sensor 123 is 150cm from the container floor. The infrared sensor 123 needs to be installed in consideration of influences of an air conditioner, a fan, a window, an electric heater and the like, so that misjudgment of the fire monitoring system 100 on fire can be reduced.

The infrared sensor 123 is connected to the gateway 130, and the infrared sensor 123 may detect an abnormal heat source when a fire occurs, and the heat source may increase, the area may become large, and the temperature may continue to increase. The infrared sensor 123 may transmit the abnormal change value of the heat source, which is the abnormal infrared data collected by the infrared sensor 123, to the gateway 130 through the network.

In this embodiment, the gateway 130 is respectively connected to the illumination sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the smoke alarm 110 and the environment sensor 120, and is mainly used to acquire and process sensing data uploaded by the illumination sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the smoke alarm 110 and the environment sensor 120. It is known from the above description that the light sensor 121, the temperature and humidity sensor 122 and the infrared sensor 123 of the smoke alarm 110 and the environmental sensor 120 can communicate with the gateway 130 via a network. After receiving the smoke data transmitted by the smoke alarm 110, the gateway 130 may analyze the smoke data to obtain the smoke condition of the room in the normal environment; after receiving the illumination data transmitted by the illumination sensor 121, the gateway 130 may analyze the illumination data to obtain the illumination condition of the room in the normal environment; after receiving the temperature and humidity data transmitted by the temperature and humidity sensor 122, the gateway 130 may analyze the temperature and humidity data to obtain the temperature and humidity conditions of the room in the normal environment; after receiving the infrared data transmitted by the infrared sensor 123, the gateway 130 may analyze the infrared data to obtain the temperature and humidity conditions of the room in the normal environment. It will be appreciated that the gateway 130 is arranged to process sensory data uploaded by the smoke alarm 110 and the environmental sensor 120.

Referring to fig. 4, the main reason that the gateway 130 in the present embodiment can analyze the data uploaded by the light sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the smoke alarm 110 and the environment sensor 120 is that the gateway includes a processor 131. It can be understood from fig. 4 that the gateway 130 may include a processor 131 and a memory 132, and the processor 131 is connected to the illumination sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the smoke alarm 110 and the environmental sensor 120, respectively.

Processor 131 may include one or more processing cores. The processor 131 connects various parts within the entire gateway 130 using various interfaces and lines, performs various functions of the gateway 130 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 132, and calling data stored in the memory 132. Alternatively, the processor 131 may be implemented in hardware using at least one of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 131 may integrate one or a combination of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Tensor Processing Unit (TPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing display content; the TPU is used to accelerate the process of the neural network; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 131, but may be implemented by a communication chip.

From the Memory 132 of fig. 4, the Memory 132 is connected to the processor 131, and the Memory 132 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). The memory 132 may be used to store instructions, programs, code sets, or instruction sets. The memory 132 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing operations, for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), for implementing various method embodiments described below, and the like. The data storage area may also store data created by the vision sensor during use (e.g., phone book, audio-video data, chat log data), etc.

After the gateway 130 acquires the data transmitted by the illumination sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the smoke alarm 110 and the environmental sensor 120, it may first determine whether the smoke alarm 110 is normal according to the smoke data uploaded by the smoke alarm 110, if the smoke alarm 110 is in an abnormal state, the gateway 130 needs to determine whether the data uploaded by the illumination sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the environmental sensor 120 are all normal, and if at least one of the data uploaded by the illumination sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the environmental sensor 120 is abnormal, the gateway 130 determines that a fire occurs.

In this embodiment, the gateway 130 may also be used to control the sensitivity of the smoke alarm 110. When the gateway 130 determines that the smoke alarm 110 is in a normal state and the data uploaded by the illumination sensor 121, the temperature and humidity sensor 122, and the infrared sensor 123 in the environmental sensor 120 are all normal, it is determined that no fire occurs. At this time, the gateway 130 may send a control command for decreasing the sensitivity to the smoke alarm 110, and the smoke alarm 110 may appropriately adjust the sensitivity after receiving the control command, so as to decrease the false alarm rate of the fire.

Referring to fig. 5, the fire monitoring system 200 further includes a terminal device 240 and a prevention device 250, and it can be known from fig. 5 that the terminal device 240 is connected to the gateway 230, and the terminal device 240 may include at least one of the following: a mobile phone, a tablet computer, a monitoring device, or the like, and the terminal device 240 is mainly used for receiving the alarm information sent by the gateway 230. In other words, when the gateway 230 determines that a fire occurs through comprehensive analysis, an alarm message is sent to the terminal device 240, so that the user of the terminal device 240 can know the occurrence of the fire as early as possible.

The alarm information received by the terminal device 240 includes two cases, one case is that the gateway 230 determines that a fire occurs by analysis. Another situation is that the gateway 230 determines through analysis that there may be a small fire or that sensors such as the light sensor 221, the temperature and humidity sensor 222, and the infrared sensor 223 in the smoke alarm 210 and the environmental sensor 220 may be malfunctioning. When the alarm information is the second case, the user holding the terminal device 240 needs to determine whether a fire occurs or whether the sensors such as the light sensor 221, the temperature and humidity sensor 222, and the infrared sensor 223 in the smoke alarm 210 and the environment sensor 220 have failed. While a second situation may arise because: the gateway 230 determines that the smoke alarm 210 is in an abnormal state, and the data uploaded by the illumination sensor 221, the temperature and humidity sensor 222, and the infrared sensor 223 in the environment sensor 220 are all normal. In addition, the gateway 230 determines that the smoke alarm 210 is in a normal state, and at least one of data uploaded by the illumination sensor 221, the temperature and humidity sensor 222, and the infrared sensor 223 in the environment sensor 220 is abnormal, and in this case, the gateway 230 may send a control instruction for improving the sensitivity to the smoke alarm 210, and after receiving the control instruction, the smoke alarm 210 may appropriately improve the sensitivity, so that the false alarm rate of a fire may be reduced, but the improvement is based on the premise that the sensitivity of the smoke alarm 210 is not maximized, and if the sensitivity of the smoke alarm has maximized, the improvement cannot be continued.

It should be noted that, in order to reduce the false alarm rate of a fire, the present embodiment may not only appropriately adjust the sensitivity of the smoke alarm 210, but also adjust the sensitivities of the illumination sensor 221, the temperature and humidity sensor 222, and the infrared sensor 223 in the environment sensor 220, and how to adjust the sensitivities of these sensors is not described here again.

As can be appreciated from fig. 5, the prevention device 250 is connected to the gateway 230, which may include at least one of: communication devices, switches or blowout preventers, etc. When the gateway 230 determines that a fire occurs, the gateway 230 may not only send an alarm message to the terminal device 240 to notify the user, but also the gateway 230 may send a command to the preventive device 250 to start the preventive device 250, and the preventive device 250 may automatically start when receiving the command. In other words, the gateway 230 immediately sends a start command to the preventive device 250 after determining that a fire has occurred in the room. For example, dialing 119 a fire alarm call, closing a switch, turning on a blowout preventer, etc. It is apparent that the primary function of the prevention device 250 is to prevent further damage from a fire.

To sum up, the fire monitoring system provided by the embodiment of the application comprehensively analyzes the sensing data uploaded by the smoke alarm and the at least one environmental sensor through the gateway, and judges whether a fire disaster occurs. This fire monitoring system not only can real time monitoring whether have the conflagration to take place, can carry out timely adjustment to smoke alarm's sensitivity in the control moreover, and then can reduce the wrong report rate of conflagration, can increase the flexibility of fire monitoring simultaneously.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being included within the following description of the preferred embodiment.

Claims

1. A fire monitoring system, comprising:

a smoke alarm, at least one environmental sensor and a gateway;

the smoke alarm is used for detecting indoor smoke concentration;

the environment sensor is used for detecting external environment parameters;

and the gateway is respectively connected with the smoke alarm and the environmental sensor and is used for processing the sensing data uploaded by the smoke alarm and the environmental sensor.

2. The system of claim 1, wherein the environmental sensors comprise an illumination sensor, a temperature and humidity sensor, and an infrared sensor;

the illumination sensor is used for detecting the indoor illumination intensity;

the temperature and humidity sensor is used for detecting indoor temperature and humidity;

the infrared sensor is used for detecting an indoor heat source.

3. The system of claim 2, wherein the gateway comprises a processor and a memory, the memory is connected to the processor, the smoke alarm, the light sensor, the temperature and humidity sensor, and the infrared sensor communicate with the gateway over a network, the gateway further configured to control the sensitivity of the smoke alarm.

4. The system of claim 2, wherein the smoke alarm is mounted within a container, the container comprising a bottom surface, a top surface, and side surfaces, the bottom surface and the top surface being connected by the side surfaces,

the smoke alarm is arranged on the top surface of the container, and the distance between the smoke alarm and the lighting equipment arranged on the top surface of the container is at least 50 cm;

the distance between the smoke alarm and the side of the container is at least 60 cm;

the distance between the smoke alarm and an air conditioner mounted in the container is at least 150 cm.

5. The system of claim 1, comprising a plurality of smoke alarms, the sensitivity of the plurality of smoke alarms being different.

6. The system of claim 4, wherein the number of the illumination sensors is at least 2, and each of the illumination sensors is mounted on the top or side of the container, there being at least 2 different detection directions.

7. The system of claim 6, wherein each of the light sensors is located at a distance from the bottom surface of the container ranging from 145cm to 155 cm.

8. The system of claim 4, wherein the temperature and humidity sensor and the infrared sensor are both mounted on a side surface of the container, and the distance between the temperature and humidity sensor and the infrared sensor and the bottom surface of the container both range from 145cm to 155 cm.

9. The system according to any of claims 1-7, wherein said system further comprises a terminal device, said terminal device being connected to said gateway, said terminal device comprising at least one of: a mobile phone, a tablet computer or a monitoring device.

10. The system according to any of claims 1-7, wherein said system further comprises a prevention device, said prevention device being connected to said gateway, said prevention device comprising at least one of: communication device, electric brake or fire sprinkler.