CN107085910A - A kind of aerosol gases alarm and warning system - Google Patents
A kind of aerosol gases alarm and warning system Download PDFInfo
- Publication number
- CN107085910A CN107085910A CN201710346534.3A CN201710346534A CN107085910A CN 107085910 A CN107085910 A CN 107085910A CN 201710346534 A CN201710346534 A CN 201710346534A CN 107085910 A CN107085910 A CN 107085910A
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- alarm
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- 239000007789 gas Substances 0.000 title claims abstract description 71
- 239000000443 aerosol Substances 0.000 title claims abstract description 57
- 230000006854 communication Effects 0.000 claims abstract description 92
- 238000004891 communication Methods 0.000 claims abstract description 90
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 239000000779 smoke Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 13
- 238000010586 diagram Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The embodiment of the present application provides a kind of aerosol gases alarm and warning system, to solve the cabling of aerosol gases alarm presence of the prior art and safeguard the problem of being more difficult.A kind of aerosol gases alarm, including:Micro-control unit MCU, sensor, switch, loudspeaker and wireless communication module, the input/output terminal of the sensor is connected with the bus port of the MCU;The output end of the switch is connected with the first general input/output port of the MCU;The input of the loudspeaker is connected with the second general input/output port of the MCU;The Serial Peripheral Interface (SPI) of the wireless communication module and the MCU Serial Peripheral Interface (SPI) connection.Due to having used wireless communication module, the cabling mode of general aerosol gases alarm is changed to wireless communication module, subsequently radio communication can be carried out by wireless communication module and host computer, has effectively evaded cabling and has safeguarded the problem of being difficult.
Description
Technical field
The application is related to communication and electronic technology field, more particularly to a kind of aerosol gases alarm and warning system.
Background technology
The frequency more and more higher occurred with modern society's fire, with the increase of gas and power consumption, fire and poisoning.
The incident of leakage of fire or toxic gas is once occur, it is easy to occur putting out a fire to save life and property the measure of grade not in time, fire distinguisher shortage and
People from field is panic, the unfavorable factor such as slow of escaping, and ultimately results in great life and property loss.Aerosol gases alarm is a kind of
Electronic product for detecting smog and/or gas, once occurring fire hazard, its internal loudspeaker will watchful people in time
.
As shown in figure 1, it is the hardware block diagram of existing aerosol gases alarm, including:Micro-control unit
(Microcontroller Unit, MCU), sensor, switch key, reset key, loudspeaker, the cabling being connected respectively with MCU
Interface and light emitting diode (Light Emitting Diode, LED), wherein, sensor can be gas sensor and/or cigarette
Mist sensor, switch key realizes the power on/off function of aerosol gases alarm, and reset key realizes external forced reset function.
The main operational principle of above-mentioned aerosol gases alarm is:When sensor, which detects external environment, occurs abnormal,
Alarm signal is produced, and the alarm signal is passed into MCU.Now, MCU can be according to algorithm drives loudspeaker and LED, while MCU
Host computer is uploaded to by walking line interface by alarm signal.
However, current general aerosol gases alarm is the mode using wiring, there is cabling and safeguard more not
Easily the problem of.
The content of the invention
The embodiment of the present application provides a kind of aerosol gases alarm and warning system, to the aerosol gases alarm solved
The cabling machine of presence safeguards the problem of being more difficult.
In a first aspect, a kind of aerosol gases alarm, including:MCU, sensor, switch, loudspeaker and radio communication mold
Block, wherein, the sensor is gas sensor and/or Smoke Sensor, and the sensor includes:Input/output terminal, it is described
Switch includes:Output end, the loudspeaker includes input, and the wireless communication module includes:Serial Peripheral Interface (SPI), it is described
MCU includes:Bus port, the first general input/output port, the second general input/output port and Serial Peripheral Interface (SPI);
The input/output terminal of the sensor is connected with the bus port of the MCU;
The output end of the switch is connected with the first general input/output port of the MCU;
The input of the loudspeaker is connected with the second general input/output port of the MCU;
The Serial Peripheral Interface (SPI) of the wireless communication module and the MCU Serial Peripheral Interface (SPI) connection.
By the scheme of the application first aspect, due to having used wireless communication module, and by the string of wireless communication module
Row Peripheral Interface is connected with MCU Serial Peripheral Interface (SPI), realizes the cabling mode change of general aerosol gases alarm
For wireless communication module, subsequently radio communication can be carried out by wireless communication module and host computer, effectively evaded cabling and
The problem of maintenance is difficult.
In the first possible implementation of first aspect, the wireless communication module is long range wireless communication mould
Block.
In the first possible implementation of above-mentioned first aspect, remote (Long Range, abbreviation are employed
LoRa) wireless communication module, due to the spy that LoRa technologies are prominent in terms of high-performance, remote, low-power consumption, ranging and positioning
Point, therefore, uses LoRa wireless communication modules so that the wireless communication distance of the aerosol gases alarm in the embodiment of the present application
Farther out, and antijamming capability is stronger in communication process, and then the accuracy of warning message and the real-time of communication are improved.
In second of possible implementation of first aspect, the wireless communication module also includes reseting port, institute
Stating MCU also includes:3rd general input/output port;The threeway of the reseting port of the wireless communication module and the MCU
Connected with input/output end port.
In second of possible implementation of above-mentioned first aspect, MCU can be general defeated by the 3rd as main equipment
Enter/reseting port from output port to the wireless communication module as slave unit input reset signal, can be achieved MCU to channel radio
Believe the reset of module.
In the third possible implementation of first aspect, the wireless communication module also includes universal input/defeated
Exit port;The MCU also includes:Reseting port;
The general input/output port of the wireless communication module is connected with the reseting port of the MCU.
In the third possible implementation of above-mentioned first aspect, wireless communication module can pass through as main equipment
Three general input/output ports input reset signal to the reseting port of the MCU as slave unit, and wireless communication module can be achieved
Reset to MCU.
In the 4th kind of possible implementation of first aspect, the aerosol gases alarm also includes:Including input
The display screen at end;The MCU also includes:4th general input/output port;
The input of the display screen is connected with the 4th general input/output port.
In the 4th kind of possible implementation of above-mentioned first aspect, the aerosol gases alarm also has display work(
Can, the concentration information for showing gas or smog.
Second aspect, a kind of warning system, including:Host computer and at least one above-mentioned aerosol gases alarm.
By the scheme of the second aspect of the application, due to having used wireless communication module, and by wireless communication module with
MCU module is connected by MCU Serial Peripheral Interface (SPI), is realized and is changed to the cabling mode of general aerosol gases alarm
Wireless communication module, can be communicated by wireless communication module with host computer, effectively evaded cabling and safeguarded what is be difficult
Problem.
Brief description of the drawings
The schematic diagram for the existing aerosol gases alarm that Fig. 1 provides for the application background technology;
One of schematic diagram of aerosol gases alarm that Fig. 2 provides for the embodiment of the present application;
The two of the schematic diagram for the aerosol gases alarm that Fig. 3 provides for the embodiment of the present application;
The three of the schematic diagram for the aerosol gases alarm that Fig. 4 provides for the embodiment of the present application;
The operation principle of the aerosol gases alarm for the use LoRa wireless communication modules that Fig. 5 provides for the embodiment of the present application
Schematic diagram;
The work of the aerosol gases alarm for the use NB-IoT wireless communication modules that Fig. 6 provides for the embodiment of the present application is former
Manage schematic diagram;
The schematic diagram for the warning system that Fig. 7 provides for the embodiment of the present application.
Embodiment
The problem of wiring and maintenance in order to solve existing smoke alarm presence are difficult, the embodiment of the present application provides one
Plant aerosol gases alarm and warning system.
The preferred embodiment of the application is illustrated below in conjunction with Figure of description, it will be appreciated that described herein
Preferred embodiment is merely to illustrate and explained the application, is not used to limit the application.And in the case where not conflicting, this Shen
Please in embodiment and the feature in embodiment can be mutually combined.
Embodiment one
As shown in Fig. 2 one of its schematic diagram of aerosol gases alarm provided for the embodiment of the present application, including:
MCU21, sensor 22, switch 23, loudspeaker 24 and wireless communication module 25.
Wherein, the sensor is gas sensor and/or Smoke Sensor, and the sensor includes:Input/output
End, the switch includes:Output end, the loudspeaker includes input, and the wireless communication module includes:Serial peripheral connects
Mouthful, the MCU includes:Bus port, the first general input/output port, the second general input/output port and serial peripheral
Interface (Serial Peripheral Interface, SPI);
The input/output terminal of the sensor is connected with the bus port of the MCU;
The output end of the switch is connected with the first general input/output port of the MCU;
The input of the loudspeaker is connected with the second general input/output port of the MCU;
The Serial Peripheral Interface (SPI) of the wireless communication module and the MCU Serial Peripheral Interface (SPI) connection.
Specifically, gas sensor is the detection for gas molecule, certain gas volume fraction can be changed into pair
Answer the converter of electric signal.Contain small granule dust in smog, Smoke Sensor is the detection for molecule, can be with
For photoelectric smoke sensor, ion type smog sensor or gas-sensitive smog sensor.
By the scheme of the embodiment of the present application, due to having used wireless communication module, and by the serial of wireless communication module
Peripheral Interface is connected with MCU Serial Peripheral Interface (SPI), realizes and is changed to the cabling mode of general aerosol gases alarm
Wireless communication module, subsequently can carry out radio communication by wireless communication module and host computer, effectively evade cabling and dimension
The problem of shield is difficult.
Preferably, the wireless communication module be remote (Long Range, abbreviation LoRa) wireless communication module and/or
Arrowband Internet of Things (NarrowBand Internet ofThings, NB-IoT) wireless communication module.
Now, the schematic diagram using the aerosol gases alarm of LoRa wireless communication modules is as shown in Figure 3;Using NB-IoT
The schematic diagram of the aerosol gases alarm of wireless communication module is as shown in Figure 4.
In above-mentioned preferably embodiment, using LoRa wireless communication modules when, due to LoRa technologies high-performance,
At a distance, the characteristics of prominent in terms of low-power consumption, ranging and positioning, therefore, LoRa wireless communication modules are used so that the application
Farther out, and antijamming capability is stronger in communication process, Jin Erti for the wireless communication distance of aerosol gases alarm in embodiment
The high accuracy and the real-time of communication of warning message.
In above-mentioned preferably embodiment, when using NB-IoT wireless communication modules, extensively covered because NB-IoT possesses
Lid, ability, more low-power consumption and the lower module cost four characteristicses of support magnanimity connection, wherein for wide covering, it will thus provide
Improved in-door covering, under same frequency range, NB-IoT expands 100 times than existing network gain 20dB, area coverage;Pin
To the ability of support magnanimity connection, mono- sector of NB-IoT can support 100,000 connections, support low latency sensitivity, ultralow
The network architecture of equipment cost, low equipment power dissipation and optimization;For more low-power consumption, the stand-by time of NB-IoT terminal modules can be grown
Up to 10 years;For lower module cost, single successive module expected from enterprise is no more than 5 dollars, therefore, can improve alarm signal
The accuracy of breath and the real-time of communication, reduce the cost of aerosol gases alarm.
Below so that aerosol gases alarm uses LoRa wireless communication modules as an example, the cigarette provided with reference to Fig. 5 the application
The course of work of mist gas alarm is illustrated.
After the system installation of the aerosol gases alarm for using LoRa wireless communication modules and host computer is included,
At the T1 moment, sensor normal boot-strap is ensured by " starting key ";The T2 moment, when sensor has detected abnormal conditions generation,
Trigger MCU and carry out relevant action;At the T3 moment, after MCU is triggered by a sensor, says the word to LORA modules and while trigger loudspeaker
With display screen alarm;T4 moment, LoRa sends out warning message to host computer.
Next, so that aerosol gases alarm uses NB-IoT wireless communication modules as an example, being provided with reference to Fig. 6 the application
The course of work of aerosol gases alarm illustrate.
When the system installation for including aerosol gases alarm and host computer using NB-IoT wireless communication modules
Afterwards, the T1 moment, sensor normal boot-strap is ensured by " starting key ";The T2 moment, when sensor has detected abnormal conditions generation
When, triggering MCU carries out relevant action;At the T3 moment, after MCU is triggered by a sensor, says the word and give NB-IoT wireless communication modules
And triggering loudspeaker and display screen alarm simultaneously;T4 moment, NB-IoT wireless communication modules send out warning message to host computer.
Preferably, the wireless communication module also includes resetting (Rest) port, the MCU also includes:3rd is general defeated
Enter/output port;The reseting port of the wireless communication module is connected with the 3rd general input/output port of the MCU.
The MCU is multiple under the preparatory conditions such as start, reset instruction to be sent to the wireless communication module
The position wireless communication module.
In this preferably embodiment, because MCU is communicated with wireless communication module using SPI protocol, communication
Two equipment in, a main equipment, one as slave unit, MCU can be by the 3rd universal input/defeated as main equipment here
Exit port inputs reset signal to the reseting port of the wireless communication module as slave unit, and MCU can be achieved to radio communication mold
The reset of block.
Preferably, the wireless communication module also includes general input/output port;The MCU also includes:Reset terminal
Mouthful;
The general input/output port of the wireless communication module is connected with the reseting port of the MCU.
The wireless communication module, for the data format of the data from MCU received in detection, if detecting described
Data format is unsatisfactory for preset data form, then exports reset signal by the general input/output port of wireless communication module
Reset the MCU module.
In this preferably mode, wireless communication module can pass through the 3rd general input/output port as main equipment
Reset signal is inputted to the reseting port of the MCU as slave unit, reset of the wireless communication module to MCU can be achieved.
By such scheme, by the switching of mode of operation between wireless communication module and MCU, aerosol gases report is realized
The reset of self-inspection, MCU and the wireless communication unit of device is warned, the availability of aerosol gases alarm is improved.
Preferably, the aerosol gases alarm also includes:Display screen 27 including input;The MCU also includes:The
Four general input/output ports;
The input of the display screen is connected with the 4th general input/output port.
In this preferably embodiment, the aerosol gases alarm also has display function, for showing gas
Or the concentration information of smog.
Embodiment two
The embodiment of the present application two provides a kind of warning system, the schematic diagram of the system as shown in fig. 7, comprises:Host computer and
Any of at least one above-described embodiment one aerosol gases alarm.
The host computer, for sending control instruction to the alarm, and receives what aerosol gases alarm was sent
Alarm signal;
The aerosol gases alarm, the control instruction for receiving and performing host computer transmission, and to described upper
Machine sends alarm signal.
Above-mentioned control instruction, including indicate the instruction of the radio communication mold block reset MCU in aerosol gases alarm.This
When, when wireless communication module is connected to the instruction for resetting MCU, reset coupled MCU.
By the scheme of the second aspect of the application, due to having used wireless communication module, and by wireless communication module with
MCU module is connected by MCU Serial Peripheral Interface (SPI), is realized and is changed to the cabling mode of general aerosol gases alarm
Wireless communication module, can be communicated by wireless communication module with host computer, effectively evaded cabling and safeguarded what is be difficult
Problem.
Through the above description of the embodiments, those skilled in the art can be understood that the embodiment of the present application
It can be realized by hardware, the mode of necessary general hardware platform can also be added to realize by software.Understood based on such,
The technical scheme of the embodiment of the present application can be embodied in the form of software product, the software product can be stored in one it is non-
Volatile storage medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in, including some instructions are to cause a computer
Method described in each embodiment of equipment (can be personal computer, server, or network equipment etc.) execution the application.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module or stream in accompanying drawing
Journey is not necessarily implemented necessary to the application.
It will be appreciated by those skilled in the art that the module in embodiment in terminal can describe to be distributed according to embodiment
In the terminal of embodiment, respective change can also be carried out and be disposed other than in one or more terminals of the present embodiment.It is above-mentioned
The module of embodiment can be merged into a module, can also be further split into multiple submodule.
Above-mentioned the embodiment of the present application sequence number is for illustration only, and the quality of embodiment is not represented.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the application to the application
God and scope.So, if these modifications and variations of the application belong to the scope of the application claim and its equivalent technologies
Within, then the application is also intended to comprising including these changes and modification.
Claims (6)
1. a kind of aerosol gases alarm, it is characterised in that including:Micro-control unit MCU, sensor, switch, loudspeaker and nothing
Line communication module, wherein, the sensor is gas sensor and/or Smoke Sensor, and the sensor includes:Input/defeated
Go out end, the switch includes:Output end, the loudspeaker includes input, and the wireless communication module includes:Serial peripheral connects
Mouthful, the MCU includes:Bus port, the first general input/output port, the second general input/output port and serial peripheral
Interface;
The input/output terminal of the sensor is connected with the bus port of the MCU;
The output end of the switch is connected with the first general input/output port of the MCU;
The input of the loudspeaker is connected with the second general input/output port of the MCU;
The Serial Peripheral Interface (SPI) of the wireless communication module and the MCU Serial Peripheral Interface (SPI) connection.
2. aerosol gases alarm as claimed in claim 1, it is characterised in that the wireless communication module is remote-wireless
Communication module.
3. aerosol gases alarm as claimed in claim 1 or 2, it is characterised in that the wireless communication module also includes multiple
Bit port, the MCU also includes:3rd general input/output port;
The reseting port of the wireless communication module is connected with the 3rd general input/output port of the MCU.
4. aerosol gases alarm as claimed in claim 1 or 2, it is characterised in that the wireless communication module also includes logical
Use input/output end port;The MCU also includes:Reseting port;
The general input/output port of the wireless communication module is connected with the reseting port of the MCU.
5. aerosol gases alarm as claimed in claim 1 or 2, it is characterised in that the aerosol gases alarm also includes:
Display screen including input;The MCU also includes:4th general input/output port;
The input of the display screen is connected with the 4th general input/output port.
6. a kind of warning system, it is characterised in that including any described smog of host computer and at least one Claims 1 to 5
Gas alarm;
The host computer, for sending control instruction to the aerosol gases alarm, and receives the aerosol gases alarm
The alarm signal that device is sent;
The aerosol gases alarm, the control instruction for receiving and performing host computer transmission, and sent out to the host computer
Send alarm signal.
Priority Applications (1)
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CN201710346534.3A CN107085910A (en) | 2017-05-17 | 2017-05-17 | A kind of aerosol gases alarm and warning system |
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CN201710346534.3A CN107085910A (en) | 2017-05-17 | 2017-05-17 | A kind of aerosol gases alarm and warning system |
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Publication Number | Publication Date |
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Family
ID=59608251
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CN201710346534.3A Pending CN107085910A (en) | 2017-05-17 | 2017-05-17 | A kind of aerosol gases alarm and warning system |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106297155A (en) * | 2016-10-24 | 2017-01-04 | 盐城冠星科技有限公司 | A kind of wireless intelligence type smoke alarm |
CN106408836A (en) * | 2016-10-21 | 2017-02-15 | 上海斐讯数据通信技术有限公司 | Forest fire alarm terminal and system |
CN106530646A (en) * | 2016-12-14 | 2017-03-22 | 郑州众易软件开发有限公司 | Fire-fighting monitoring alarm device |
CN206480116U (en) * | 2017-05-17 | 2017-09-08 | 青岛中云时代信息技术有限公司 | A kind of aerosol gases alarm and warning system |
-
2017
- 2017-05-17 CN CN201710346534.3A patent/CN107085910A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106408836A (en) * | 2016-10-21 | 2017-02-15 | 上海斐讯数据通信技术有限公司 | Forest fire alarm terminal and system |
CN106297155A (en) * | 2016-10-24 | 2017-01-04 | 盐城冠星科技有限公司 | A kind of wireless intelligence type smoke alarm |
CN106530646A (en) * | 2016-12-14 | 2017-03-22 | 郑州众易软件开发有限公司 | Fire-fighting monitoring alarm device |
CN206480116U (en) * | 2017-05-17 | 2017-09-08 | 青岛中云时代信息技术有限公司 | A kind of aerosol gases alarm and warning system |
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