CN211294135U - Intelligent combustible gas detector - Google Patents
Intelligent combustible gas detector Download PDFInfo
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- CN211294135U CN211294135U CN201922423070.9U CN201922423070U CN211294135U CN 211294135 U CN211294135 U CN 211294135U CN 201922423070 U CN201922423070 U CN 201922423070U CN 211294135 U CN211294135 U CN 211294135U
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Abstract
The utility model provides an intelligence combustible gas detector relates to combustible gas detection equipment technical field. The utility model discloses an including NB-IOT module, local alarm device, environmental detection module, pyroelectric infrared sensor, controller. When the environmental parameters are judged to exceed the preset values and people exist, the utility model controls the local alarm device to send out alarm signals and closes the NB-IOT module; and when the environmental parameters are judged to exceed the preset values but no people exist, alarm information is sent to the remote monitoring platform through the NB-IOT module. The utility model discloses not only monitor methane gas concentration, still monitor carbon monoxide gas concentration, have nobody in temperature and the environment in the ability monitoring environment constantly, have easy and simple to handle, convenient and practical characteristics. The utility model discloses not only equipment is reported to the police, can also report to the police for the user long-rangely, has intelligent and humanized characteristics.
Description
Technical Field
The utility model relates to a combustible gas detection equipment technical field especially relates to an intelligence combustible gas detector.
Background
Currently, combustible gas detector devices are used in kitchens, restaurants, gas companies, etc. where the concentration of gas in an environment needs to be monitored. The combustible gas detector generally utilizes methane gas to reach a certain concentration after entering the sensor, and the methane and the sensor generate electrochemical reaction, thereby outputting a signal, causing equipment to alarm and realizing the purpose of monitoring the gas concentration in the environment.
However, the existing combustible gas detector can only detect methane gas, so the existing combustible gas detector can only be used in places using natural gas. Most households still use coal gas, and the main component of the coal gas is carbon monoxide, so that the existing combustible gas detector cannot be used.
The existing combustible gas detector is not intelligent enough, because whether a person exists in a house or not, the combustible gas detector can make a call to a user when giving an alarm, and informs the user of the alarm, thereby consuming the flow cost. In addition, kitchen fire is one of the main causes of household fire, and the monitoring means of kitchen fire is few, and the common smoke sensation can not be used in the kitchen.
Therefore, the problem of a detector which can accurately detect various combustible gases, is sensitive to environmental temperature detection and can intelligently alarm needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses one of them purpose is in order to provide an intelligence combustible gas detector, has solved among the prior art can not detect multiple combustible gas, detect insensitive, the not intelligent detector's of reporting to the police technique problem inadequately to ambient temperature. The utility model discloses a great deal of beneficial effect can be reached in the preferred embodiment, specifically see the following explanation.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model discloses an intelligence combustible gas detector, it includes:
an NB-IOT module, a local alarm device, and,
the environment detection module is used for detecting environment parameters;
the pyroelectric infrared sensor is used for detecting human body signals;
the controller is used for judging whether the environmental parameters exceed preset values or not and whether people exist or not, and controlling the local alarm device to send out alarm signals and close the NB-IOT module when the environmental parameters exceed the preset values and people exist; and when the environmental parameters are judged to exceed the preset values but no person exists, alarm information is sent to the remote monitoring platform through the NB-IOT module, so that the remote monitoring platform sends the alarm information to the bound monitoring terminal.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: the environment detection module comprises at least one of:
methane sensors, carbon monoxide sensors.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: further comprising:
the detection item change-over switch is connected with the controller;
the controller is also used for controlling the environment detection module to detect the methane concentration or detect the carbon monoxide concentration according to the detection item selected by the user through the detection item selector switch.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: further comprising:
the temperature sensor is connected with the controller;
and the controller is also used for judging whether a fire disaster occurs according to the ambient temperature detected by the temperature sensor.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: further comprising:
the relay is connected with the controller and is also connected with a valve of a gas pipeline;
and the controller is also used for closing a valve of the gas pipeline through the relay when the environmental parameter is judged to exceed the preset value.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: further comprising:
and the self-checking silencing button, the LCD display screen and the LED indicator lamp are connected with the controller.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: the NB-IOT module, the local alarm device, the environment detection module and the controller are all arranged in the shell; the shell is provided with a smoke inlet hole.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: the smoke inlet hole is arranged on the shell and corresponds to the environment detection module.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: the housing further comprises a vent hole arranged on the housing.
Further, for realizing better the utility model discloses, adopt the following structure that sets up very much: the shell also comprises a buzzer sounding hole which is arranged on the shell and corresponds to the local alarm device.
The utility model provides a pair of intelligence combustible gas detector has following beneficial technological effect at least:
the utility model discloses can not only monitor methane concentration and can also monitor carbon monoxide concentration, can cover the demand of citizen about combustible gas control basically. Furthermore, the utility model discloses can also monitor the temperature condition in the environment, whether can real time monitoring conflagration break out. The utility model discloses have pyroelectric infrared sensor and fresnel lens, can prevent that the toy disturbs, anti-electromagnetic interference and anti light interference, therefore whether someone in the accurate detection environment. The utility model also has a local alarm device and an NB-IOT module connected with the NB-IOT antenna, the utility model judges whether the methane concentration, the carbon monoxide concentration and the temperature exceed the standards or not according to the detected condition, and closes the electromagnetic valve or the electric valve through the relay in time, thereby closing the gas pipe; and whether the environment is occupied or not is monitored, an alarm mode is judged, when the environment is occupied, the combustible gas detector only alarms locally, and when the environment is not occupied, the combustible gas detector can make a call to inform a user and send alarm information to user terminal equipment. Therefore, the utility model has the characteristics of convenient, practical still have intelligent, socialization and humanized characteristics.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the internal structure of the present invention;
fig. 2 is a schematic view of another internal structure of the present invention;
FIG. 3 is a solid diagram of the appearance structure of the present invention;
fig. 4 is a schematic flow chart of a method of use according to the present invention.
In the figure, 1-housing, 2-circuit board;
11-vent hole, 12-smoke inlet hole, 13-buzzer sounding hole;
21-controller, 22-NB-IOT module, 23-detection item switch, 24-relay, 25-methane sensor, 26-carbon monoxide sensor, 27-LCD display screen, 28-LED indicator light, 29-NB-IOT antenna, 210-temperature sensor, 211-pyroelectric infrared sensor, 212-Fresnel lens, 213-local alarm device, 214-self-detection silencing button;
281-working indicator light, 282-fault indicator light and 283-alarm indicator light.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, 2 and 3, the present invention is an intelligent combustible gas detector, which includes:
NB-IOT module 22, local alarm device 213, and,
the environment detection module is used for detecting environment parameters;
a pyroelectric infrared sensor 211 for detecting a human body signal;
the controller 21 is used for judging whether the environmental parameters exceed preset values or not and whether people exist or not, and controlling the local alarm device to send out alarm signals and close the NB-IOT module when the environmental parameters exceed the preset values and people exist; and when the environmental parameters are judged to exceed the preset values but no person exists, alarm information is sent to the remote monitoring platform through the NB-IOT module, so that the remote monitoring platform sends the alarm information to the bound monitoring terminal.
It should be explained that the controller 21 includes but is not limited to: a single chip microcomputer, a Microprocessor (MCU), a PLC controller, a DSP controller and the like.
The utility model discloses a pyroelectric infrared sensor 211 and environment detection module, judge respectively whether the environmental parameter exceeds the default, and, whether someone exists, and when judging that the environmental parameter exceeds the default, and someone exists, control local alarm device 213 and send alarm signal, close NB-IOT module 22; and when the environmental parameters are judged to exceed the preset values but no person exists, alarm information is sent to the remote monitoring platform through the NB-IOT module 22, so that the remote monitoring platform sends the alarm information to the bound monitoring terminals. The automatic detection of the environmental parameters and the concentration of the combustible gas is realized, the intelligent alarm is realized, and the automatic detection device has the characteristics of convenience in operation, simplicity, practicability and intellectualization.
The environment detection module comprises at least one of:
a methane sensor 25, a carbon monoxide sensor 26.
The utility model discloses still include: a detection item changeover switch 23 connected to the controller 21;
the controller 21 is further configured to control the environment detection module to perform methane concentration detection or carbon monoxide concentration detection according to a detection item selected by the user through the detection item switch 23.
The utility model discloses still include: a temperature sensor 210 connected to the controller 21;
the controller 21 is further configured to determine whether a fire occurs according to the ambient temperature detected by the temperature sensor 210.
The utility model discloses still include: the relay 24 is connected with the controller 21, and the relay 24 is also connected with a valve of a gas pipeline;
and the controller 21 is further configured to close the valve of the gas pipeline through the relay 24 when the environmental parameter is determined to exceed the preset value.
The utility model discloses still include: a self-test silencing button 214 connected with the controller, an LCD display screen 27 and an LED indicator light 28.
The utility model discloses still include: the NB-IOT module 22, the local alarm device 213, the environment detection module and the controller 21 are all arranged in the shell 1; the housing 1 is provided with a smoke inlet 11.
The smoke inlet hole is arranged on the shell and corresponds to the environment detection module.
The shell also comprises a vent hole which is arranged on the shell.
The shell also comprises a buzzer sounding hole which is arranged on the shell and corresponds to the local alarm device.
Taking the controller as the MCU as an example, the preferred embodiment is as follows:
the utility model discloses a: a housing 1 and a circuit board 2 built in the housing; the NB-IOT module 22, the local alarm device, the environment detection module, the pyroelectric infrared sensor and the controller are all arranged on the circuit board,
the circuit board 2 comprises an MCU, an NB-IOT module 22, a detection item selector switch 23, a relay 24, a methane sensor 25, a carbon monoxide sensor 26, an LCD display screen 27 and an LED indicator light 28 which are connected with the MCU, and also comprises an NB-IOT antenna 29 connected with the NB-IOT module;
four vent holes 11 positioned at four corners, smoke air inlets 12 corresponding to a methane sensor 25 and a carbon monoxide sensor 26, an LCD display screen 27, an LED indicator light 28 and a detection item change-over switch 23 are arranged on the front surface of the shell 1;
the NB-IOT module 22 is configured to send data such as state information and position information of the combustible gas detector to the user terminal device through the NB-IOT antenna 29;
the LCD 27 is configured to display parameter values of a current environment, such as a concentration value of methane or a concentration value of carbon monoxide in the environment, a temperature in the environment, and the like;
the detection item switch 23 is used for selecting the methane sensor 25 or the carbon monoxide sensor 26 to work;
the relay 24 is used for controlling the cut-off and the closing of the electric valve or the electromagnetic valve so as to close the gas pipe;
the methane sensor 25 is used for detecting the concentration of methane in the environment and monitoring whether the concentration of methane exceeds the standard;
the carbon monoxide sensor 26 is used for detecting the concentration of carbon monoxide in the environment and monitoring whether the concentration of carbon monoxide exceeds a standard or not.
The utility model discloses not only by the methane in the methane sensor 25 monitoring environment, carbon monoxide sensor 26 monitoring environment's concentration in addition, consequently, select by detection item change over switch 23, detection item change over switch 23 is used for switching over methane sensor 25 and carbon monoxide sensor 26 and uses, when the button is normal state, the utility model discloses only detect methane gas, when pressing the button, the utility model discloses switch to carbon monoxide sensor 26 work, the user can decide which kind of sensor to use on the earth according to the actual service environment of self.
If methane or carbon monoxide in the environment exceeds the standard, the methane sensor 25 or the carbon monoxide sensor 26 can monitor and send signals to the MCU, the MCU can send alarm information to the user terminal equipment through the NB-IOT module 22 and the NB-IOT antenna 29, and meanwhile, the relay 24 drives the electric valve or the electromagnetic valve to close the gas valve. Therefore, the utility model has the characteristics of convenient and practical, practice thrift cost, multi-functional, still have the function that intelligence was reported to the police.
The circuit board 2 further includes a temperature sensor 210 connected to the MCU for detecting temperature data in the environment and monitoring whether a fire is initiated. The temperature sensor 210 is a non-contact temperature sensor, and a sensing element of the non-contact temperature sensor is not in contact with the measured object, which is also called a non-contact temperature measuring instrument. The non-contact temperature sensor can be used to measure the surface temperature of moving objects, small targets and objects with small heat capacities or fast temperature changes (transients), and also to measure the temperature distribution of the temperature field.
The most commonly used non-contact thermometers are based on the fundamental law of blackbody radiation, known as radiation thermometers. The radiation temperature measurement methods can only measure the corresponding photometric temperature, radiation temperature or colorimetric temperature. The temperature measured is only true for a black body (an object that absorbs all radiation and does not reflect light). If the true temperature of the object is to be measured, a correction of the surface emissivity of the material must be made. And the surface emissivity of the material is not only dependent on temperature and wavelength, but also related to surface state, coating film, microstructure, etc., and thus it is difficult to accurately measure.
The advantage of a contactless temperature sensor is that the upper measurement limit is not limited by the temperature resistance of the temperature-sensitive element, so that there is in principle no limit to the maximum measurable temperature.
When ambient temperature risees, the utility model discloses a temperature sensing element takes place physical change, turns into the signal of telecommunication with temperature signal, transmits MCU and carries out analysis processes, and the analysis back is through NB-IOT module 22 with information transmission to user terminal equipment, realizes temperature sensor to the monitoring of environmental fire condition to inform user's overall process.
The circuit board 2 further comprises a pyroelectric infrared sensor 211 connected with the MCU for monitoring whether a person is present in the environment. The pyroelectric infrared sensor 211 is mainly a detection element with a size of 2 × 1mm made of a material with a high thermoelectric coefficient, such as lead zirconate titanate ceramic, lithium tantalate, and triethylenetitanium sulfate.
The circuit board 2 further includes a fresnel lens 212 mounted on the pyroelectric infrared sensor 211. In order to improve the utility model discloses a detection sensitivity is in order to increase detection distance, generally installs a fresnel lens 212 in pyroelectric infrared sensor 211's the place ahead, and fresnel lens 212 makes with transparent plastic, respectively falls into a plurality of equal parts with fresnel lens 212's upper and lower two parts, makes a lens that has special optical system, and it cooperatees with amplifier circuit, can amplify the signal more than 70 decibels, just so can measure 20 meters within range people's action.
The fresnel lens 212 utilizes the special optical principle of the lens to generate a "blind area" and a "high-sensitivity area" which are alternately changed in front of the pyroelectric infrared sensor 211 so as to improve the detection receiving sensitivity thereof. When someone passes through the lens, infrared rays emitted by a human body continuously and alternately enter a high-sensitivity region from a blind region, so that received infrared signals are input in a pulse mode of strength and weakness, and the energy amplitude of the infrared signals is strengthened.
The central wavelength of infrared rays radiated by a human body is 9-10 um, and the wavelength sensitivity of a detection element of the pyroelectric infrared sensor 211 is almost stable and unchanged within the range of 0.2-20 um. The top end of the pyroelectric infrared sensor 211 is provided with a window provided with a filter lens, the filter can pass light with the wavelength range of 7-10 um and is just suitable for the detection of human body infrared radiation, and infrared rays with other wavelengths are absorbed by the filter, so that the infrared sensor specially used for detecting the human body radiation is formed.
The pyroelectric infrared sensor 211 has the following characteristics:
preventing interference of small animals: the utility model discloses install the use height of recommending, to the little animal on the ground in the detection range, generally not produce the warning.
② anti-electromagnetic interference: the utility model discloses an anti electromagnetic wave interference performance accords with 4.6.1 requirements in the GB10408, and general cell-phone electromagnetic interference can not arouse the false positive.
Thirdly, resisting light interference: the utility model discloses in the within range of normal sensitivity, receive 3 meters outer H4 halogen lamp to see through glass and shine, do not produce the warning.
The sensitivity of the pyroelectric infrared sensor 211 to the human body is also greatly related to the direction of human motion. The pyroelectric infrared sensor 211 is least sensitive to radial movement reactions and most sensitive to transverse direction (i.e. perpendicular to the radius) movements. The selection of a proper installation position on the site is an important ring for avoiding false alarm of the infrared probe and obtaining the optimal detection sensitivity.
When the pyroelectric infrared sensor 211 works, if someone approaches the pyroelectric infrared sensor 211, the pyroelectric infrared sensor 211 receives an infrared signal of 9-10 μm emitted by a human body, outputs a corresponding electric signal to an amplifying circuit of the pyroelectric infrared sensor 211 for processing, and the signal is transmitted to the MCU after being amplified, shaped and the like. The MUC analyzes and processes the information and judges whether a person exists indoors or not; when people are in the room, the utility model only alarms locally when detecting combustible gas, and information can not be uploaded; when nobody is indoor, the utility model discloses information uploads, remote alarm. The whole working process does not emit any ray outwards, so that the human body cannot be injured.
The circuit board 2 further comprises a local alarm device 213 connected to the MCU for playing a prompt alarm tone. Preferably, the local alarm device is a buzzer or an alarm.
The circuit board 2 further comprises a self-checking silencing button 214 connected with the MCU, and the self-checking silencing button 214 is further arranged on the front surface of the shell 1 and used for eliminating a prompt alarm sound, and resetting the alarm sound or resetting the detector after the alarm sound is reset or tested.
The housing 1 further includes a buzzer sound hole 13 corresponding to the local alarm device 213.
The LED indicator lights 28 include a working indicator light 281, a fault indicator light 282 and an alarm indicator light 283, which are used to indicate the normal working state, the fault state and the alarm state of the detector, respectively.
The utility model discloses according to user's needs, the methane gas or the carbon monoxide gas in the selectable environment detect to use methane sensor 25 or carbon monoxide sensor 26, the utility model discloses temperature sensor 210 and pyroelectric infrared sensor 211 have still been adopted simultaneously and have been monitored the change of temperature in the environment constantly and have the judgement that nobody exists. The utility model can alarm according to whether the methane concentration exceeds the standard or whether the carbon monoxide concentration exceeds the standard or whether the temperature exceeds the standard, and simultaneously, the relay 24 drives the electromagnetic valve or the electric valve to close the gas pipe; and selecting which mode to alarm according to whether a person exists in the detected environment. If no one exists in the environment, the utility model selects remote alarm and triggers local alarm at the same time; if the person exists, local alarm is selected, and a local alarm device plays an alarm prompt tone and flashes an alarm lamp. The utility model has the characteristics of sensitivity is high, convenient and practical, multi-functional, intelligent.
Referring to fig. 4, the application method corresponding to the present invention includes:
step S1, detecting environmental parameters, wherein the environmental parameters comprise at least one of the following items: ambient temperature, carbon monoxide concentration, methane concentration;
step S2, judging whether the environmental parameters exceed preset values and whether people exist;
step S3, if the environmental parameters are judged to exceed the preset values and people exist, controlling a local alarm device to send out alarm signals and closing the NB-IOT module; if the environmental parameters exceed the preset values and no person exists, alarm information is sent to a remote monitoring platform through an NB-IOT module, so that the remote monitoring platform sends the alarm information to the bound monitoring terminals.
Preferably, the step S1 is specifically:
detecting the ambient temperature through a normally open temperature sensor; and/or the presence of a gas in the gas,
and detecting the concentration of carbon monoxide or the concentration of methane according to the detection item selected by the user.
Preferably, the step S2 is specifically:
judging whether the environmental temperature exceeds a preset temperature value, if so, judging whether a person exists; and/or the presence of a gas in the gas,
and judging whether the concentration of the carbon monoxide exceeds a first preset concentration value or not, or judging whether the concentration of the methane exceeds a second preset concentration value or not, and if so, judging whether a person exists or not.
It should be noted that, the above technical solution is applicable to the above intelligent combustible gas detector, and for convenience of understanding, the following is specifically explained:
in an initial state, the circuit board is powered on, the temperature sensor and the pyroelectric infrared sensor are in an on state, the NB-IOT module is in a power-saving dormant state, and the working lamp is lighted.
According to the environment needs, the detection item change-over switch transmits the signal of selecting to turn on corresponding sensor to the controller, and then the controller receives the signal of turning on corresponding sensor after, the corresponding sensor of control is turned on, specifically includes:
the detection item switch transmits a signal for selecting to start the methane sensor to the controller, and the controller controls the methane sensor to be started after receiving the signal for starting the methane sensor;
the detection item switch transmits a signal for selecting to start the carbon monoxide sensor to the controller, and the controller controls the carbon monoxide sensor to be started after receiving the signal for starting the carbon monoxide sensor.
When the methane sensor detects that the concentration of methane in the environment exceeds the standard, a methane concentration exceeding signal is sent to the controller;
when the carbon monoxide sensor detects that the concentration of carbon monoxide in the environment exceeds the standard, sending a carbon monoxide concentration exceeding signal to the controller;
then, the controller receives the temperature data in the environment transmitted by the temperature sensor and the pyroelectric infrared sensor and whether a person signal exists or not at any moment; the method specifically comprises the following steps:
if the controller receives a signal that the concentration of methane exceeds the standard and a signal that people exist in the environment, the controller closes the NB-IOT module, starts a local alarm device to play a prompt alarm sound, lights an alarm lamp, and closes a gas pipe by controlling and cutting off an electric valve or electromagnetism through a relay;
if the controller receives a carbon monoxide concentration standard exceeding signal and a signal of a person in the environment at the same time, the controller closes the NB-IOT module, starts a local alarm device to play a prompt alarm sound, lights an alarm lamp, and controls to cut off an electric valve or electromagnetism through a relay so as to close a gas pipe;
if the controller receives a signal that the methane concentration exceeds the standard and a signal that no person exists in the environment, the controller opens the NB-IOT module, sends alarm information to terminal equipment of a user and dials a user telephone through the NB-IOT module and the NB-IOT antenna, starts a local alarm device to play a prompt alarm sound, lights an alarm lamp, and controls to cut off an electric valve or electromagnetism through a relay so as to close a gas pipe;
if the controller receives a carbon monoxide concentration standard exceeding signal and an unmanned signal in the environment at the same time, the controller opens the NB-IOT module, sends alarm information to terminal equipment of a user and dials a user telephone through the NB-IOT module and the NB-IOT antenna, starts a local alarm device to play a prompt alarm sound, lights an alarm lamp, and controls to cut off an electric valve or electromagnetism through a relay so as to close a gas pipe;
if the controller only receives an environmental temperature standard exceeding signal and a signal of a person in the environment, the controller closes the NB-IOT module, starts a local alarm device to play a prompt alarm sound, lights an alarm lamp, and controls to cut off an electric valve or electromagnetism through a relay so as to close a gas pipe;
if the controller only receives an environmental temperature exceeding signal and an unmanned signal in the environment, the controller opens the NB-IOT module, sends alarm information to terminal equipment of a user and dials a user telephone through the NB-IOT module and the NB-IOT antenna, starts a local alarm device to play a prompt alarm sound, lights an alarm lamp, and controls to cut off an electric valve or electromagnetism through a relay to close a gas pipe.
When the local alarm device plays the prompt alarm sound, the self-checking silencing button detects that the local alarm device is pressed, and sends the alarm sound closing information to the controller, and then the controller controls the local alarm device to close the alarm sound.
When the detector is in a normal power-on state, the self-detection silencing button detects that the detector is pressed and sends a self-detection signal to the controller; the method specifically comprises the following steps:
if the controller can control the local alarm device to sound, the detector is indicated to have no fault;
if the controller can not control the local alarm device to sound, the detector is indicated to be in fault, and the controller controls the fault lamp to light.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An intelligent combustible gas detector, comprising:
an NB-IOT module, a local alarm device, and,
the environment detection module is used for detecting environment parameters;
the pyroelectric infrared sensor is used for detecting human body signals;
the controller is used for judging whether the environmental parameters exceed preset values or not and whether people exist or not, and controlling the local alarm device to send out alarm signals and close the NB-IOT module when the environmental parameters exceed the preset values and people exist; and when the environmental parameters are judged to exceed the preset values but no person exists, alarm information is sent to the remote monitoring platform through the NB-IOT module, so that the remote monitoring platform sends the alarm information to the bound monitoring terminal.
2. The intelligent combustible gas detector of claim 1 wherein the environmental detection module comprises at least one of:
methane sensors, carbon monoxide sensors.
3. The intelligent combustible gas detector of claim 2 further comprising:
the detection item change-over switch is connected with the controller;
the controller is also used for controlling the environment detection module to detect the methane concentration or detect the carbon monoxide concentration according to the detection item selected by the user through the detection item selector switch.
4. The intelligent combustible gas detector of claim 1 further comprising:
the temperature sensor is connected with the controller;
and the controller is also used for judging whether a fire disaster occurs according to the ambient temperature detected by the temperature sensor.
5. The intelligent combustible gas detector of claim 1 further comprising:
the relay is connected with the controller and is also connected with a valve of a gas pipeline;
and the controller is also used for closing a valve of the gas pipeline through the relay when the environmental parameter is judged to exceed the preset value.
6. The intelligent combustible gas detector of claim 1 further comprising:
and the self-checking silencing button, the LCD display screen and the LED indicator lamp are connected with the controller.
7. The intelligent combustible gas detector of any one of claims 1 to 6, further comprising: the NB-IOT module, the local alarm device, the environment detection module and the controller are all arranged in the shell; the shell is provided with a smoke inlet hole.
8. The intelligent combustible gas detector of claim 7 wherein the smoke inlet is disposed on the housing in correspondence with the environmental detection module.
9. The intelligent combustible gas detector of claim 7 wherein the housing further comprises a vent hole disposed on the housing.
10. The intelligent combustible gas detector of claim 7 wherein the housing further comprises a buzzer sound hole disposed on the housing corresponding to the local alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423070.9U CN211294135U (en) | 2019-12-27 | 2019-12-27 | Intelligent combustible gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423070.9U CN211294135U (en) | 2019-12-27 | 2019-12-27 | Intelligent combustible gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211294135U true CN211294135U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922423070.9U Active CN211294135U (en) | 2019-12-27 | 2019-12-27 | Intelligent combustible gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211294135U (en) |
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2019
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