CN110657547A - Hazardous gas concentration monitoring system and method and gas sensor - Google Patents
Hazardous gas concentration monitoring system and method and gas sensor Download PDFInfo
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- CN110657547A CN110657547A CN201910919888.1A CN201910919888A CN110657547A CN 110657547 A CN110657547 A CN 110657547A CN 201910919888 A CN201910919888 A CN 201910919888A CN 110657547 A CN110657547 A CN 110657547A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
Abstract
The invention discloses a system and a method for monitoring concentration of hazardous gas and a gas sensor, wherein the system comprises: the system comprises a gas sensor, a first exhaust device and a second exhaust device, wherein the gas sensor is used for monitoring whether the concentration of harmful gas in a target area exceeds a preset warning value in real time, generating and sending a starting signal of the first exhaust device when the concentration of the harmful gas exceeds the preset warning value, and starting a built-in gas concentration detection module to detect the concentration value of the harmful gas and sending a detection result of the concentration of the harmful gas when the concentration of the harmful gas exceeds the preset warning value; and the air exhaust equipment is in communication connection with the gas sensor and is used for starting an air exhaust mode according to a first air exhaust equipment starting signal output by the gas sensor so as to reduce the concentration of harmful gas in a target area. The invention can not only inform the user whether the target area is safe in real time, but also automatically start the air exhaust device to exhaust harmful gas, thereby eliminating hidden danger for the user.
Description
Technical Field
The invention belongs to the technical field of hazardous gas protection, and particularly relates to a hazardous gas concentration monitoring system and method and a gas sensor.
Background
In daily life, serious accidents caused by poisoning of harmful gases such as CO often occur, and death may be caused seriously. The causes of such malignant consequences are strongly linked to the risk of gas protection. By way of example, CO is a colorless, odorless, toxic gas that can enter the body of a human being to bind with hemoglobin, causing the hemoglobin to lose its oxygen-carrying function, resulting in asphyxiation of body tissues. However, people do not even feel the presence of it, and therefore, people cannot find and handle it in a timely manner.
The gas sensors on the market at present have single functions, can only detect the existence of harmful gas to inform people in a short distance or a long distance, and have only an alarm function, so that the gas sensors cannot help people to reduce the concentration of the harmful gas and cannot definitely indicate whether a certain position is safe or not. That is, even if the existing gas sensor can identify CO and give an alarm, people still cannot know the specific CO concentration at a certain position, and cannot determine whether the position is safe or not, and cannot control the concentration of the harmful gases. Therefore, the current gas sensors cannot effectively prevent a serious accident caused by the poisoning of harmful gas.
Therefore, there is a need for a hazardous gas concentration monitoring system, method and gas sensor.
Disclosure of Invention
The invention aims to solve the technical problems that the existing gas sensor cannot control the concentration of harmful gas and cannot determine whether a certain position is safe or not.
In order to solve the technical problem, the invention provides a harmful gas concentration monitoring system and method and a gas sensor.
In a first aspect, the present invention provides a hazardous gas concentration monitoring system comprising:
the system comprises a gas sensor, a first exhaust device and a second exhaust device, wherein the gas sensor is used for monitoring whether the concentration of harmful gas in a target area exceeds a preset warning value in real time and generating and sending a starting signal of the first exhaust device when the concentration of the harmful gas exceeds the preset warning value, and the gas sensor is used for starting a built-in gas concentration detection module to detect the concentration value of the harmful gas and sending a detection result of the concentration of the harmful gas when the concentration of the harmful gas exceeds the preset warning value;
the air exhaust equipment is in communication connection with the gas sensor and used for starting an air exhaust mode according to a first air exhaust equipment starting signal output by the gas sensor so as to reduce the concentration of harmful gas in a target area;
and the user terminal is in communication connection with the gas sensor and is used for receiving a detection result of the concentration of the harmful gas provided by the gas sensor so as to prompt a user whether a target area is safe or not.
Preferably, the gas sensor is further configured to monitor whether the concentration of harmful gas in the target area is lower than a preset warning value in real time during the period of starting the exhaust device, and when the concentration of harmful gas is lower than the preset warning value, generate and send a first exhaust device closing signal, and close the built-in gas concentration detection module;
the air exhausting device is also used for closing an air exhausting mode according to a first air exhausting device closing signal output by the gas sensor.
Preferably, the user terminal is further configured to generate and send a second exhaust device turning-on signal when the exhaust device fails to turn on the exhaust mode according to the first exhaust device turning-on signal output by the gas sensor, and generate and send a second exhaust device turning-off signal when the exhaust device fails to turn off the exhaust mode according to the first exhaust device turning-off signal output by the gas sensor;
the air exhausting equipment is also connected with the user terminal and used for starting an air exhausting mode according to a second air exhausting equipment starting signal output by the user terminal and closing the air exhausting mode according to a second air exhausting equipment closing signal output by the user terminal.
Preferably, the user terminal is further configured to load a harmful gas concentration detection result output by the gas sensor on an electronic map of a target area, and push the harmful gas concentration detection result of the target area to a user in the form of the map.
Preferably, the gas sensor and the air exhaust device are in communication connection by using a bluetooth technology.
Preferably, the gas sensor and the user terminal establish a communication connection through a bluetooth gateway.
Preferably, the user terminal and the exhaust device establish communication connection through a Bluetooth gateway.
According to another aspect of the invention, there is provided a method of monitoring the concentration of a hazardous gas comprising the steps of:
monitoring whether the concentration of harmful gas in a target area exceeds a preset warning value or not in real time by using a gas sensor; when the concentration of the harmful gas exceeds a preset warning value, the gas sensor generates and sends a first exhaust equipment starting signal, starts a built-in gas concentration detection module to detect the concentration value of the harmful gas and sends a detection result of the concentration of the harmful gas;
the air exhaust equipment receives a first air exhaust equipment starting signal output by the gas sensor, and starts an air exhaust mode according to the first air exhaust equipment starting signal so as to reduce the concentration of harmful gas in a target area;
and the user terminal receives the detection result of the concentration of the harmful gas output by the gas sensor so as to prompt the user whether the target area is safe or not.
Preferably, after the exhaust device receives a first exhaust device on signal output by the gas sensor and starts an exhaust mode according to the first exhaust device on signal to reduce the concentration of harmful gas in a target area, the method further comprises the following steps:
monitoring whether the concentration of harmful gas in a target area is lower than a preset warning value or not by using a gas sensor in real time during the starting period of the exhaust equipment, and generating and sending a first exhaust equipment closing signal by using the gas sensor when the concentration of the harmful gas is lower than the preset warning value;
and the air exhaust device receives a first air exhaust device closing signal output by the gas sensor, and closes an air exhaust mode according to the first air exhaust device closing signal output by the gas sensor.
Preferably, if the air exhaust device fails to start the air exhaust mode according to the first air exhaust device start signal output by the gas sensor, the user terminal generates and sends a second air exhaust device start signal;
the air exhaust equipment starts an air exhaust mode according to a second air exhaust equipment starting signal output by the user terminal;
if the air exhaust equipment fails to close the air exhaust mode according to the first air exhaust equipment closing signal output by the gas sensor, the user terminal generates and sends a second air exhaust equipment closing signal;
and the air exhaust equipment closes the air exhaust mode according to a second air exhaust equipment closing signal output by the user terminal.
According to still another aspect of the present invention, there is provided a gas sensor including:
the monitoring module is used for monitoring the concentration of the harmful gas in the target area in real time;
the control module is connected with the monitoring module and used for judging whether the concentration of the harmful gas in the target area exceeds a preset warning value or not, and generating a starting signal of the first exhaust equipment on one hand and outputting a trigger signal on the other hand when the concentration of the harmful gas exceeds the preset warning value, wherein the triggering signal is used for starting a built-in gas concentration detection module to detect the concentration value of the harmful gas;
the gas concentration detection module is connected with the control module and is used for starting according to the trigger signal so as to detect the concentration value of the harmful gas;
and the signal transceiving module is connected with the control module and the gas concentration sensor and is used for sending a first exhaust equipment starting signal output by the control module to exhaust equipment so as to start the exhaust equipment and sending a harmful gas concentration value detected by the gas concentration detection module to a user terminal so as to remind a user whether a target area is safe or not.
Preferably, the monitoring module is an all-in-one gas sensor module.
Preferably, the hazardous gas concentration value detection module is an infrared gas detection module.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
1) when the concentration of the harmful gas exceeds the standard, an exhaust device opening signal is generated and sent to the exhaust device to open the exhaust device, so that the concentration of the harmful gas is reduced, the real-time detection of the concentration value of the harmful gas is triggered, the detected concentration value of the harmful gas is sent to the user terminal in real time to remind whether a target area of a user is safe or not, the target area of the user can be informed of whether the target area of the user is safe or not in real time, accidents are prevented when the user mistakenly enters the target area, the exhaust device can be automatically opened, the concentration of the harmful gas is controlled to be reduced to a safe range, the target area can be in a safe state in time, accidents are prevented when people except the user mistakenly enter the target area, and the damage to people can be reduced to the maximum extent by the target;
2) when the concentration value of the harmful gas is greater than the preset threshold value and an exhaust equipment opening instruction input by a user is received, generating an exhaust equipment opening signal according to the exhaust equipment opening instruction and sending the exhaust equipment opening signal to the exhaust equipment to open the exhaust equipment, so that the concentration of the harmful gas is reduced; when the concentration value of the harmful gas is smaller than or equal to the preset threshold value and an exhaust equipment closing instruction input by a user is received, an exhaust equipment closing signal is generated according to the exhaust equipment closing instruction and sent to the exhaust equipment to close the exhaust equipment, so that when the gas sensor cannot transmit signals, the concentration of the harmful gas can be controlled through the user terminal, double protection is achieved, and the target area is safer.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a hazardous gas concentration monitoring system according to an embodiment of the invention;
FIG. 2 is a flow chart of a hazardous gas concentration monitoring method according to a second embodiment of the invention;
fig. 3 shows a schematic structural diagram of a three-gas sensor according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
Example one
In order to solve the technical problems in the prior art, the embodiment of the invention provides a harmful gas concentration monitoring system.
Fig. 1 shows a schematic structural diagram of a hazardous gas concentration monitoring system according to an embodiment of the present invention. Referring to fig. 1, the present invention provides a hazardous gas concentration monitoring system, comprising:
the system comprises a gas sensor 101, a first exhaust device and a second exhaust device, wherein the gas sensor is used for monitoring whether the concentration of harmful gas in a target area exceeds a preset warning value in real time and generating and sending a starting signal of the first exhaust device when the concentration of the harmful gas exceeds the preset warning value, and the gas sensor is used for starting a built-in gas concentration detection module to detect the concentration value of the harmful gas and sending a detection result of the concentration of the harmful gas when the concentration of the harmful gas exceeds the preset warning value;
the exhaust device 102 is in communication connection with the gas sensor and is used for starting an exhaust mode according to a first exhaust device starting signal output by the gas sensor so as to reduce the concentration of harmful gas in a target area;
and the user terminal 103 is in communication connection with the gas sensor and is used for receiving a detection result of the concentration of the harmful gas provided by the gas sensor so as to prompt a user whether a target area is safe or not.
In addition, the gas sensor is also used for monitoring whether the concentration of harmful gas in a target area is lower than a preset warning value or not in real time during the starting period of the exhaust equipment, and generating and sending a first exhaust equipment closing signal and closing the built-in gas concentration detection module when the concentration of the harmful gas is lower than the preset warning value;
the air exhausting device is also used for closing an air exhausting mode according to a first air exhausting device closing signal output by the gas sensor.
In addition, the user terminal is further configured to generate and send a second exhaust device turning-on signal when the exhaust device fails to turn on the exhaust mode according to the first exhaust device turning-on signal output by the gas sensor, and generate and send a second exhaust device turning-off signal when the exhaust device fails to turn off the exhaust mode according to the first exhaust device turning-off signal output by the gas sensor;
the air exhausting equipment is also connected with the user terminal and used for starting an air exhausting mode according to a second air exhausting equipment starting signal output by the user terminal and closing the air exhausting mode according to a second air exhausting equipment closing signal output by the user terminal.
Meanwhile, the user terminal is further used for loading the detection result of the concentration of the harmful gas output by the gas sensor on an electronic map of a target area and pushing the detection result of the concentration of the harmful gas in the target area to a user in the form of the map.
In this embodiment, the gas sensor and the exhaust device are communicatively connected using bluetooth technology.
In this embodiment, the gas sensor and the user terminal establish a communication connection through a bluetooth gateway.
In this embodiment, the user terminal and the exhaust device establish a communication connection through the bluetooth gateway 104.
Therefore, the gas sensor, the exhaust equipment and the Bluetooth gateway can form a Bluetooth mesh network, and the user terminal is connected with the Bluetooth gateway.
In the bluetooth mesh network of this embodiment, gas sensor and exhaust equipment bluetooth are bluetooth mesh equipment, and the data that bluetooth mesh equipment collected can be sent for user terminal through the bluetooth gateway, and user terminal also can be through bluetooth gateway direct control bluetooth mesh equipment.
In this embodiment, the exhaust device may be a range hood.
In the hazardous gas concentration monitoring system of this embodiment, the gas sensor is further configured to monitor whether the hazardous gas concentration in the target area is lower than a preset warning value in real time during the period when the exhaust device is turned on, and when the hazardous gas concentration is lower than the preset warning value, generate and send a first exhaust device turn-off signal, and turn off the built-in gas concentration detection module, thereby saving energy and avoiding unnecessary energy consumption.
In the hazardous gas concentration monitoring system of this embodiment, the user terminal is further configured to generate and send a second exhaust device turning-on signal when the exhaust device fails to turn on the exhaust mode according to the first exhaust device turning-on signal output by the gas sensor, and generate and send a second exhaust device turning-off signal when the exhaust device fails to turn off the exhaust mode according to the first exhaust device turning-off signal output by the gas sensor, so that when the gas sensor fails to transmit a signal due to a fault, the concentration of hazardous gas can be controlled by the user terminal, double protection is achieved, and a target area is safer.
In the hazardous gas concentration monitoring system of this embodiment, the user terminal generates and sends a second exhaust device closing signal to close the exhaust device when the exhaust device fails to close the exhaust mode according to the first exhaust device closing signal output by the gas sensor, so as to save energy and avoid unnecessary energy consumption.
In the hazardous gas concentration monitoring system of this embodiment, the user terminal is further configured to load the hazardous gas concentration detection result output by the gas sensor on an electronic map of a target area, and push the hazardous gas concentration detection result of the target area to a user in the form of a map, so that the user can know a specific location where the hazardous gas leaks.
Example two
In order to solve the technical problems in the prior art, the embodiment of the invention also provides a harmful gas concentration monitoring method.
Fig. 2 shows a flow chart of a hazardous gas concentration monitoring method according to a second embodiment of the invention. Referring to fig. 2, the method for monitoring the concentration of hazardous gas provided in this embodiment includes the following steps:
s210, monitoring whether the concentration of harmful gas in the target area exceeds a preset warning value in real time by using a gas sensor: if so, the gas sensor generates and sends a first exhaust equipment starting signal, and starts a built-in gas concentration detection module to detect a concentration value of the harmful gas and sends a detection result of the concentration of the harmful gas; if not, the gas sensor does not respond;
specifically, in step S210, the monitoring of the hazardous gas concentration in the target area is rough, and a specific hazardous gas concentration value cannot be obtained, but is used to monitor whether the hazardous gas concentration exceeds a preset warning value, where the preset warning value is a national standard hazardous gas concentration threshold value. And the gas concentration detection module detects a specific harmful gas concentration value.
S220, judging whether the air exhausting equipment can receive a first air exhausting equipment starting signal output by the gas sensor or not, and starting an air exhausting mode according to the first air exhausting equipment starting signal output by the gas sensor: if yes, the user terminal does not respond; if not, the user terminal generates and sends a second air exhaust device starting signal, and executes the step S230;
s230, the air exhaust equipment starts an air exhaust mode according to a second air exhaust equipment starting signal output by the user terminal so as to reduce the concentration of harmful gas in a target area;
and S240, receiving the detection result of the concentration of the harmful gas output by the gas sensor by the user terminal to prompt the user whether the target area is safe or not.
In particular, step S240 is not limited to being after step S230 as long as step S230 is after step S210.
S250, during the starting period of the exhaust equipment, monitoring whether the concentration of harmful gas in a target area is lower than a preset warning value in real time by using a gas sensor: if so, the gas sensor generates and sends a first exhaust equipment closing signal; if not, the gas sensor does not respond;
s260, judging whether the air exhausting equipment can receive a first air exhausting equipment closing signal output by the gas sensor or not, and closing an air exhausting mode according to the first air exhausting equipment closing signal output by the gas sensor: if yes, the user terminal does not respond; if not, the user terminal generates and sends a second air exhaust equipment closing signal, and executes the step S270;
and S270, the air exhausting equipment closes the air exhausting mode according to a second air exhausting equipment closing signal output by the user terminal.
In the hazardous gas concentration monitoring method of the embodiment, the gas sensor monitors whether the hazardous gas concentration in the target area is lower than a preset warning value or not in real time during the starting period of the exhaust device, and generates and sends a first exhaust device closing signal and closes the built-in gas concentration detection module when the hazardous gas concentration is lower than the preset warning value, so that energy is saved, and unnecessary energy consumption is avoided.
In the method for monitoring concentration of hazardous gas in this embodiment, the user terminal generates and sends a second exhaust device turning-on signal when the exhaust device fails to turn on the exhaust mode according to the first exhaust device turning-on signal output by the gas sensor, and generates and sends a second exhaust device turning-off signal when the exhaust device fails to turn off the exhaust mode according to the first exhaust device turning-off signal output by the gas sensor, so that when the gas sensor fails to transmit a signal due to a fault, concentration of hazardous gas can be controlled through the user terminal, double protection is achieved, and a target area is safer.
In the method for monitoring the concentration of harmful gas in the embodiment, the user terminal generates and sends the second air exhaust device closing signal to close the air exhaust device when the air exhaust device fails to close the air exhaust mode according to the first air exhaust device closing signal output by the gas sensor, so that energy is saved and unnecessary energy consumption is avoided.
EXAMPLE III
In order to solve the technical problems in the prior art, the embodiment of the invention also provides a gas sensor.
Fig. 3 shows a schematic structural diagram of a three-gas sensor according to an embodiment of the present invention. Referring to fig. 3, the present embodiment provides a gas sensor including:
a monitoring module 301 for monitoring the concentration of hazardous gas in a target area in real time;
a control module 302, connected to the monitoring module, for determining whether the concentration of the hazardous gas in the target area exceeds a preset warning value, and when the concentration of the hazardous gas exceeds the preset warning value, on one hand, generating a first exhaust device turn-on signal, and on the other hand, outputting a trigger signal for turning on a built-in gas concentration detection module to detect the concentration value of the hazardous gas;
the gas concentration detection module 303 is connected with the control module and is used for starting according to the trigger signal to detect a concentration value of the harmful gas;
and the signal transceiving module 304 is connected with the control module and the gas concentration sensor, and is configured to send a first exhaust device start signal output by the control module to an exhaust device to start the exhaust device, and send a harmful gas concentration value detected by the gas concentration detection module to a user terminal to remind a user whether a target area is safe.
Preferably, the monitoring module is an all-in-one gas sensor module.
Preferably, the hazardous gas concentration value detection module is an infrared gas detection module.
In this implementation, the signal transceiver module may be a bluetooth mesh chip module.
Here, if the room in which the gas sensor needs to be set is too large and the monitoring area of one infrared detection module cannot determine the hazardous gas concentration value of each area in the whole room, a plurality of gas sensors may be adaptively set in one room, so that the user can know the hazardous gas concentration value of each area in the whole room to determine which area has a large hazardous gas concentration value and which area has a small hazardous gas concentration value in the whole room, thereby knowing which area the safety position in the whole room is in.
The gas sensor of this embodiment can inform user's safe position exactly to can link exhaust apparatus and go these harm gas emissions, can in time get rid of hidden danger for people, not only make the user avoid danger through reminding user's safe position, still in time get rid of hidden danger for the people of this target area of mistake income, make as far as possible provide safe environment for people, with furthest reduction to people's injury.
The gas sensor of this embodiment has bluetooth mesh chip module and infrared detection module in, and infrared detection module is responsible for real-time supervision harm gaseous concentration value. When the gas sensor finds harmful gas, the infrared detection module scans a target area (a monitoring area of the infrared detection module), and then sends a scanning result to the user terminal through the Bluetooth gateway, and the user terminal can display a harmful gas concentration value of the target area, wherein if a room needing to be provided with the gas sensor is too large and the monitoring area of one infrared detection module cannot determine the harmful gas concentration value of each area of the whole room, a plurality of gas sensors can be adaptively arranged in one room, so that a user can know the harmful gas concentration value of each area of the whole room to judge which area has a large harmful gas concentration value and which area has a small harmful gas concentration value in the whole room, thereby knowing which area the safety position in the whole room is, and meanwhile, the gas sensor is linked with exhaust equipment such as a kitchen smoke extractor to exhaust gas, the air quality of the surrounding environment is optimized to the maximum, and the user terminal can control the exhaust equipment through the Bluetooth gateway, for example, when the user terminal displays that the concentration value of the harmful gas is reduced to a safe range, the exhaust equipment can be turned off through an instruction input by a user.
In this embodiment, when the gas sensor detects that harmful gas leaks, on the one hand, control exhaust equipment and open, on the other hand, detect specific harmful gas concentration value and send to user terminal, the user can go to control opening of exhaust equipment through the mode of input instruction at user terminal (user terminal can control all bluetooth mesh equipment in the family through the bluetooth gateway), even can guarantee like this that gas sensor itself breaks down and leads to when can not directly control opening of exhaust equipment, the user can control opening of exhaust equipment in time.
The gas sensor of this embodiment, during exhaust equipment opens, whether the harmful gas concentration in real time monitoring target area is less than preset alarm value, when harmful gas concentration is less than preset alarm value, generate and send first exhaust equipment and close the signal to close built-in gas concentration detection module, the energy can be saved avoids unnecessary energy consumption.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. A hazardous gas concentration monitoring system, comprising:
the system comprises a gas sensor, a first exhaust device and a second exhaust device, wherein the gas sensor is used for monitoring whether the concentration of harmful gas in a target area exceeds a preset warning value in real time and generating and sending a starting signal of the first exhaust device when the concentration of the harmful gas exceeds the preset warning value, and the gas sensor is used for starting a built-in gas concentration detection module to detect the concentration value of the harmful gas and sending a detection result of the concentration of the harmful gas when the concentration of the harmful gas exceeds the preset warning value;
the air exhaust equipment is in communication connection with the gas sensor and used for starting an air exhaust mode according to a first air exhaust equipment starting signal output by the gas sensor so as to reduce the concentration of harmful gas in a target area;
and the user terminal is in communication connection with the gas sensor and is used for receiving a detection result of the concentration of the harmful gas provided by the gas sensor so as to prompt a user whether a target area is safe or not.
2. The system of claim 1, wherein:
the gas sensor is also used for monitoring whether the concentration of harmful gas in a target area is lower than a preset warning value or not in real time during the starting period of the exhaust equipment, generating and sending a first exhaust equipment closing signal when the concentration of the harmful gas is lower than the preset warning value, and closing the built-in gas concentration detection module;
the air exhausting device is also used for closing an air exhausting mode according to a first air exhausting device closing signal output by the gas sensor.
3. The system of claim 2, wherein:
the user terminal is further configured to generate and send a second air exhaust device turning-on signal when the air exhaust device fails to turn on the air exhaust mode according to the first air exhaust device turning-on signal output by the gas sensor, and generate and send a second air exhaust device turning-off signal when the air exhaust device fails to turn off the air exhaust mode according to the first air exhaust device turning-off signal output by the gas sensor;
the air exhausting equipment is also connected with the user terminal and used for starting an air exhausting mode according to a second air exhausting equipment starting signal output by the user terminal and closing the air exhausting mode according to a second air exhausting equipment closing signal output by the user terminal.
4. The system of claim 1,
the user terminal is further used for loading the detection result of the concentration of the harmful gas output by the gas sensor on an electronic map of a target area and pushing the detection result of the concentration of the harmful gas in the target area to a user in the form of the map.
5. The system of claim 1, wherein the gas sensor is communicatively coupled to the exhaust device using bluetooth technology.
6. The system of claim 1,
and the gas sensor and the user terminal are in communication connection through a Bluetooth gateway.
7. The system of claim 1,
and the user terminal and the exhaust equipment establish communication connection through a Bluetooth gateway.
8. A method of monitoring the concentration of a hazardous gas, comprising the steps of:
monitoring whether the concentration of harmful gas in a target area exceeds a preset warning value or not in real time by using a gas sensor; when the concentration of the harmful gas exceeds a preset warning value, the gas sensor generates and sends a first exhaust equipment starting signal, starts a built-in gas concentration detection module to detect the concentration value of the harmful gas and sends a detection result of the concentration of the harmful gas;
the air exhaust equipment receives a first air exhaust equipment starting signal output by the gas sensor, and starts an air exhaust mode according to the first air exhaust equipment starting signal so as to reduce the concentration of harmful gas in a target area;
and the user terminal receives the detection result of the concentration of the harmful gas output by the gas sensor so as to prompt the user whether the target area is safe or not.
9. The method of claim 8, wherein the exhaust device receives a first exhaust device activation signal from the gas sensor, and activates an exhaust mode according to the first exhaust device activation signal to reduce the concentration of the harmful gas in the target area, further comprising the steps of:
monitoring whether the concentration of harmful gas in a target area is lower than a preset warning value or not by using a gas sensor in real time during the starting period of the exhaust equipment, and generating and sending a first exhaust equipment closing signal by using the gas sensor when the concentration of the harmful gas is lower than the preset warning value;
and the air exhaust device receives a first air exhaust device closing signal output by the gas sensor, and closes an air exhaust mode according to the first air exhaust device closing signal output by the gas sensor.
10. The method of claim 9, wherein:
if the air exhaust equipment fails to start the air exhaust mode according to the first air exhaust equipment starting signal output by the gas sensor, the user terminal generates and sends a second air exhaust equipment starting signal;
the air exhaust equipment starts an air exhaust mode according to a second air exhaust equipment starting signal output by the user terminal;
if the air exhaust equipment fails to close the air exhaust mode according to the first air exhaust equipment closing signal output by the gas sensor, the user terminal generates and sends a second air exhaust equipment closing signal;
and the air exhaust equipment closes the air exhaust mode according to a second air exhaust equipment closing signal output by the user terminal.
11. A gas sensor, comprising:
the monitoring module is used for monitoring the concentration of the harmful gas in the target area in real time;
the control module is connected with the monitoring module and used for judging whether the concentration of the harmful gas in the target area exceeds a preset warning value or not, and generating a starting signal of the first exhaust equipment on one hand and outputting a trigger signal on the other hand when the concentration of the harmful gas exceeds the preset warning value, wherein the triggering signal is used for starting a built-in gas concentration detection module to detect the concentration value of the harmful gas;
the gas concentration detection module is connected with the control module and is used for starting according to the trigger signal so as to detect the concentration value of the harmful gas;
and the signal transceiving module is connected with the control module and the gas concentration sensor and is used for sending a first exhaust equipment starting signal output by the control module to exhaust equipment so as to start the exhaust equipment and sending a harmful gas concentration value detected by the gas concentration detection module to a user terminal so as to remind a user whether a target area is safe or not.
12. The gas sensor of claim 11, wherein the monitoring module is an all-in-one gas sensor module.
13. The gas sensor of claim 11, wherein the hazardous gas concentration value detection module is an infrared gas detection module.
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