CN210271154U - Compound wireless domestic alarm based on fire source is judged - Google Patents
Compound wireless domestic alarm based on fire source is judged Download PDFInfo
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- CN210271154U CN210271154U CN201920972371.4U CN201920972371U CN210271154U CN 210271154 U CN210271154 U CN 210271154U CN 201920972371 U CN201920972371 U CN 201920972371U CN 210271154 U CN210271154 U CN 210271154U
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Abstract
The utility model provides a compound wireless domestic alarm based on fire source is judged, include: the smoke sensor is used for detecting smoke entering the sensor labyrinth and transmitting the smoke to the logic control module through a corresponding connecting interface; the temperature sensor is used for converting the temperature in the environment into a digital signal and transmitting the digital signal to the logic control module through a corresponding connecting interface; the combustible gas/CO sensor module is used for detecting fuel gas and CO in a fire environment and transmitting the fuel gas and CO to the logic control module through corresponding connecting interfaces; the logic control module is used for judging whether the received smoke concentration signal, the temperature signal and the combustible gas or CO concentration signal exceed corresponding thresholds or not and generating corresponding alarm information according to the judgment result; the sound and light alarm module is used for executing corresponding sound and light alarm according to the alarm information; the wireless module is used for uploading alarm information to an upper computer.
Description
Technical Field
The utility model relates to an indoor environment detects and fire control conflagration detection technical field, specific theory has related to a compound wireless domestic alarm based on fire source is judged.
Background
With the development of society, the gas brings many potential safety hazards while being widely used, and is an important source for causing household fire. In case of fire caused by gas, the fire source valve is cut off and the fire extinguishing procedure must be careful and standardized, and secondary explosion or fire can be caused if the fire is not rescued properly. Therefore, the judgment of whether the fire is caused by the gas is of great significance for the subsequent rescue work. It is well known that not only does the occurrence of a fire endanger the safety of lives and property, but also serious persons endanger public safety. The experience of 'preventing the smoke in the upper part, rescuing the second part and giving up the smoke in the lower part' is summarized in ancient China, and how to combine the prevention and the post-disaster alarm is a major key task of the current household smoke alarm. In addition, when a fire disaster occurs, besides smoke of different degrees, certain heat and CO can be generated when various furniture, household appliances, plastics and the like are burnt, and only if the data are monitored in parallel, high accuracy and effectiveness can be achieved. At present, the common smoke alarm in the market has a single function, can only simply detect smoke and give an alarm, has poor expandability, cannot increase other detections, does not support remote monitoring, and is difficult to meet the safety requirement.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at providing a compound wireless domestic alarm based on fire source is judged to prior art not enough.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a composite wireless household alarm based on fire source judgment comprises a smoke sensor, a temperature sensor, a combustible gas/CO sensor module, a logic control module, a wireless module, an audible and visual alarm module and a power module;
the smoke sensor is used for detecting smoke entering the sensor labyrinth, converting the smoke concentration in the fire environment into a digital signal and transmitting the digital signal to the logic control module through a corresponding connecting interface;
the temperature sensor is used for converting the temperature in the environment into a digital signal and transmitting the digital signal to the logic control module through a corresponding connecting interface;
the combustible gas/CO sensor module is used for detecting gas and CO in a fire environment, converting the concentration of the gas and the CO in the fire environment into digital signals and transmitting the digital signals to the logic control module through a corresponding connecting interface;
the logic control module is used for judging whether the received smoke concentration signal, the temperature signal and the combustible gas or CO concentration signal exceed corresponding thresholds or not and generating corresponding alarm information according to the judgment result;
if only the combustible gas concentration signal is judged to exceed the corresponding threshold value, generating gas leakage alarm information;
if the smoke concentration, the temperature and the CO concentration are judged to exceed the corresponding threshold values, reading a combustible gas concentration signal monitored last time, and if the combustible gas concentration information exceeds the highest threshold value, generating fire and fire source prediction alarm information; if the concentration signal of the combustible gas does not exceed the corresponding threshold value, generating fire alarm information;
the sound and light alarm module is connected with the logic control module and is used for executing corresponding sound and light alarm according to the alarm information;
and the wireless module is connected with the logic control module and is used for uploading alarm information to an upper computer.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses whether will judge the burning things which may cause a fire disaster and combine together with fire alarm, compare traditional fire alarm, have the characteristics of judging the burning things which may cause a fire disaster, measure that kind is many, the configuration is nimble, support remote monitoring.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a schematic circuit diagram of a logic control module according to embodiment 2 of the present invention.
Fig. 3 is a schematic diagram of an interface circuit between each sensor and the logic control module in embodiment 2 of the present invention.
Fig. 4 is a schematic circuit diagram of a wireless module according to embodiment 2 of the present invention.
Fig. 5 is a schematic circuit diagram of the sound and light alarm module in embodiment 2 of the present invention.
Fig. 6 is a schematic circuit diagram of a power module according to embodiment 2 of the present invention.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
Example 1
As shown in fig. 1, the utility model provides a compound wireless domestic alarm based on fire source is judged, its characterized in that: the wireless household alarm comprises a smoke sensor, a temperature sensor, a combustible gas/CO sensor module, a logic control module, a wireless module, an audible and visual alarm module and a power supply module;
the smoke sensor is used for detecting smoke entering the sensor labyrinth, converting the smoke concentration in the fire environment into a digital signal and transmitting the digital signal to the logic control module through a corresponding connecting interface;
the temperature sensor is used for converting the temperature in the environment into a digital signal and transmitting the digital signal to the logic control module through a corresponding connecting interface;
the combustible gas/CO sensor module is used for detecting gas and CO in a fire environment, converting the concentration of the gas and the CO in the fire environment into digital signals and transmitting the digital signals to the logic control module through a corresponding connecting interface;
the logic control module is used for judging whether the received smoke concentration signal, the temperature signal and the combustible gas or CO concentration signal exceed corresponding thresholds or not and generating corresponding alarm information according to the judgment result; if only the combustible gas concentration signal is judged to exceed the corresponding threshold value, generating gas leakage alarm information; if the smoke concentration, the temperature and the CO concentration are judged to exceed the corresponding threshold values, reading a combustible gas concentration signal monitored last time, and if the combustible gas concentration information exceeds the highest threshold value, generating fire and fire source prediction alarm information; if the concentration signal of the combustible gas does not exceed the corresponding threshold value, generating fire alarm information;
the sound and light alarm module is connected with the logic control module and is used for executing corresponding sound and light alarm according to the alarm information;
and the wireless module is connected with the logic control module and is used for uploading alarm information to an upper computer.
The composite wireless household alarm based on fire source judgment of the embodiment is internally provided with a three-level alarm processing mechanism of gas alarm, fire and fire source prediction alarm. Under normal environment, if the gas takes place to leak, when it reaches the predetermined threshold value of compound wireless domestic alarm, carry out the gas warning to send to cloud platform or APP through wireless module and inform supervisory personnel or user in time to take measures, avoid dangerous emergence. When a fire disaster occurs, detecting smoke, temperature and CO, reading last monitored gas information if the fire disaster is judged to occur at the moment according to preset threshold values of all parameters, judging that the possibility of causing the fire disaster by the gas is very high at the moment if the gas information exceeds the highest threshold value, sending fire disaster and fire source prediction alarm information to a cloud platform or APP through a wireless module, informing relevant departments or personnel of controlling dangerous situations in time, and taking corresponding measures to avoid secondary explosion; and if the gas information does not exceed the threshold value, only uploading the fire alarm to a cloud platform or APP to inform relevant departments or personnel.
The wireless module in this example is the secondary encapsulation of various communication technologies, including controller and wireless transmission module, and the wireless transmission module contains wiFi, loRa, zigBee, NB-IoT, GPRS, bluetooth etc. and when concrete configuration, chooses for use different wireless transmission modules as required. The wireless module can be connected in a matching mode according to selection, and is used for transmitting data of the logic control unit to upper computers such as a cloud platform or an APP client side. In particular, the command information sent by the cloud platform or the APP client can also be sent to the logic control unit, for example, after the alarm is released, the release command is sent to the logic control unit through the cloud platform; parameter configuration commands, such as modifying preset thresholds, may also be sent to the logical control unit via the cloud platform.
The sound and light alarm module mainly comprises a buzzer, an LED lamp and an auxiliary circuit thereof, and sound and light output of the early warning or alarm information sent by the logic control module is realized. When the alarm processing mechanism is used specifically, the sound of the alarm processing mechanism and the lighting of the LED lamp are obviously different.
The power supply module supports two modes of 220V power supply and battery power supply and can be switched. The power supply to each module is realized through AC-DC and DC-DC conversion.
Example 2
The difference between the present embodiment and embodiment 1 is that a specific implementation of a composite wireless household alarm based on fire source judgment is provided.
Specifically, the logic control module adopts a low-power-consumption singlechip STM32F103RC (a circuit schematic diagram is shown in FIG. 2), the smoke sensor adopts an MQ-2 smoke sensor, the temperature sensor adopts an MF11 compensation type NTC thermistor temperature-sensitive detector produced by Nanjing Shih constant electrons, and the combustible gas/CO sensor module adopts an MQ-9B combustible gas/CO sensor. An interface circuit of each sensor and the logic control module is shown in fig. 3, a circuit schematic diagram of the wireless module is shown in fig. 4, a circuit schematic diagram of the sound and light alarm module is shown in fig. 5, and a circuit schematic diagram of the power module is shown in fig. 6.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (5)
1. The utility model provides a compound wireless domestic alarm based on fire source is judged which characterized in that: the wireless household alarm comprises a smoke sensor, a temperature sensor, a combustible gas/CO sensor module, a logic control module, a wireless module, an audible and visual alarm module and a power supply module;
the smoke sensor is used for detecting smoke entering the sensor labyrinth, converting the smoke concentration in the fire environment into a digital signal and transmitting the digital signal to the logic control module through a corresponding connecting interface;
the temperature sensor is used for converting the temperature in the environment into a digital signal and transmitting the digital signal to the logic control module through a corresponding connecting interface;
the combustible gas/CO sensor module is used for detecting gas and CO in a fire environment, converting the concentration of the gas and the CO in the fire environment into digital signals and transmitting the digital signals to the logic control module through a corresponding connecting interface;
the logic control module is used for judging whether the received smoke concentration signal, the temperature signal and the combustible gas or CO concentration signal exceed corresponding thresholds or not and generating corresponding alarm information according to the judgment result;
if only the combustible gas concentration signal is judged to exceed the corresponding threshold value, generating gas leakage alarm information;
if the smoke concentration, the temperature and the CO concentration are judged to exceed the corresponding threshold values, reading a combustible gas concentration signal monitored last time, and if the combustible gas concentration information exceeds the highest threshold value, generating fire and fire source prediction alarm information; if the concentration signal of the combustible gas does not exceed the corresponding threshold value, generating fire alarm information;
the sound and light alarm module is connected with the logic control module and is used for executing corresponding sound and light alarm according to the alarm information;
and the wireless module is connected with the logic control module and is used for uploading alarm information to an upper computer.
2. A composite wireless home alarm based on fire source judgment as claimed in claim 1, wherein: the wireless module comprises a controller and a wireless transmission module, wherein the wireless transmission module is WiFi, LoRa, ZigBee, NB-IoT, GPRS or Bluetooth.
3. The compound wireless household alarm based on fire source judgment as claimed in claim 1, wherein: the logic control module adopts a low-power consumption singlechip.
4. A composite wireless home alarm based on fire source judgment as claimed in claim 1, wherein: the power supply module is powered by mains supply and supplies power to equipment through AC-DC; the power module is also provided with a standby battery which supplies power to the equipment through DC-DC voltage reduction conversion.
5. A composite wireless home alarm based on fire source judgment as claimed in claim 1, wherein: the sound and light alarm module comprises a buzzer and an LED indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920972371.4U CN210271154U (en) | 2019-06-26 | 2019-06-26 | Compound wireless domestic alarm based on fire source is judged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920972371.4U CN210271154U (en) | 2019-06-26 | 2019-06-26 | Compound wireless domestic alarm based on fire source is judged |
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| Publication Number | Publication Date |
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| CN210271154U true CN210271154U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920972371.4U Active CN210271154U (en) | 2019-06-26 | 2019-06-26 | Compound wireless domestic alarm based on fire source is judged |
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| CN (1) | CN210271154U (en) |
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- 2019-06-26 CN CN201920972371.4U patent/CN210271154U/en active Active
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