CN209149527U - A kind of wireless fire protection alarm system - Google Patents
A kind of wireless fire protection alarm system Download PDFInfo
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- CN209149527U CN209149527U CN201821833785.0U CN201821833785U CN209149527U CN 209149527 U CN209149527 U CN 209149527U CN 201821833785 U CN201821833785 U CN 201821833785U CN 209149527 U CN209149527 U CN 209149527U
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Abstract
The problems such as the utility model discloses a kind of wireless fire protection alarm system, this system combination 6LoWPAN wireless technology, communication eliminates difficult wiring using wireless mode, and it is inconvenient to safeguard, aging circuit；Host computer is designed using Web server as remote data server, and PHP technology establishes Web site, can be realized the end PC and mobile terminal quick search, is monitored in real time；This system uses algorithm combined of multi-sensor information, and system is made to reach preferable effect in terms of stability, accuracy, effective to reduce rate of false alarm and rate of failing to report.
Description
Technical field
The utility model belongs to signal acquisition and wireless communication field, and in particular to a kind of wireless fire protection alarm system.
Background technique
Through the ages, fire is always the object that the mankind contend with therewith.Intelligent fire alarm system appears in 20th century 80
Later period in age.There is intelligence in terms of main controller in system, joined algorithm appropriate in main controller when handling data, mentions
High system accuracy, significantly reduces rate of false alarm, but main controller is the data information of pick-up probe, can't be to spy
It surveys device operating status or failure is distinguished, so being pertaining only to primary intelligence system.Its working principle is that by detector
The analog quantity information measured is transferred to main controller, these data informations of algorithm process is passed through in main controller, and then distinguish fire
The authenticity and its development degree of generation.Once judging there is fire, main controller just issues alarm signal.Type of alarm has
Classifying alarm formula and response lag automatic floating etc..
Multifunctional intellectual automatic fire alarm system appears in the 1990s, with microprocessor and computer technology
Fast development, fire detector has been assigned intelligence, can make corresponding pretreatment to information is detected according to environment, fire
Also there is centralized and distributed intelligent fire alarm system in calamity alarm system.Main controller is the core of system, due to visiting
The intelligence for surveying device, reduces the resource distribution of main controller, can fortune to system and failure make monitoring management and control, greatly
The stability of system is enhanced greatly, improves the rapidity of system operation.
Wireless fire disaster automatic alarm system appears in phase late 1990s, along with the progress of science and technology, the hair in epoch
Exhibition, the growth of wireless sensor technology gradually are got up.Fire alarm system also is become wirelessly connecting from traditional wired connection mode
It connects, the problems such as wireless connection eliminates difficult wiring, and maintenance is inconvenient, aging circuit, installation and maintenance cost is greatly saved.Fire
Calamity alarm system is also no longer individual safety management system, it also with the intelligent management systems such as smart home, building automatic
It combines, really realizes comprehensive integrated intelligent management system.
Utility model content
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of wireless fire protection alarm systems, enough the realization end PC
With mobile terminal quick search, real time monitoring；This system uses algorithm combined of multi-sensor information, makes system in stability, standard
Reach preferable effect in terms of true property, it is effective to reduce rate of false alarm and rate of failing to report.
In order to achieve the above object, the utility model includes that several reception temperature sensors, gas sensor and smog pass
The 6LoWPAN terminal node of sensor signal, all 6LoWPAN terminal nodes connect 6LoWPAN border router, the side 6LoWPAN
Boundary's router connects STM32 processing unit by 6LoWPAN gateway, and STM32 processing unit connects Web service by wireless module
Device, Web server connect client.
The wireless module includes GPRS module, and is controlled by monitoring personnel.
The GPRS module uses SIM900A module.
The 6LoWPAN terminal node is connected with power module, Anneta module and fire-fighting control module.
The 6LoWPAN terminal node includes several transmission node MX231CC, and transmission node MX231CC passes through wireless network
Network connects wireless network card MX-USBStick, and wireless network card MX-USBStick connects radio network gateway MXG300, nothing by USB interface
Gauze closes MXG300 connection server.
The STM32 processing unit uses STM32F103,
The temperature sensor uses DS18b20, and gas sensor uses MQ-7, and smoke sensor device uses MQ-2.
Compared with prior art, the utility model combination 6LoWPAN wireless technology, communication eliminate cloth using wireless mode
The problems such as line is difficult, and maintenance is inconvenient, aging circuit；Host computer is designed using Web server as remote data server, PHP
Technology establishes Web site, can be realized the end PC and mobile terminal quick search, real time monitoring；This system uses multi-sensor information
The algorithm of fusion makes system reach preferable effect in terms of stability, accuracy, effective to reduce rate of false alarm and rate of failing to report.
Detailed description of the invention
Fig. 1 is the system block diagram of the utility model；
Fig. 2 is the structure chart of 6LoWPAN terminal node in the utility model；
Fig. 3 is MQ sensor circuit schematic diagram in the utility model；
Fig. 4 is the hardware connection figure of 6LoWPAN terminal node in the utility model.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Referring to Fig. 1 to Fig. 4, the utility model includes several reception temperature sensors, gas sensor and smoke sensor device
The 6LoWPAN terminal node of signal, all 6LoWPAN terminal nodes connect 6LoWPAN border router, the boundary 6LoWPAN road
STM32 processing unit is connected by 6LoWPAN gateway by device, STM32 processing unit connects Web server by wireless module,
Web server connects client, and wireless module includes GPRS module, and controlled by monitoring personnel, 6LoWPAN terminal section
Point is connected with power module, Anneta module and fire-fighting control module, and 6LoWPAN terminal node includes several transmission nodes
MX231CC, transmission node MX231CC pass through wireless network connection wireless network card MX-USBStick, wireless network card MX-
USBStick connects radio network gateway MXG300, radio network gateway MXG300 connection server by USB interface.
Preferably, GPRS module uses SIM900A module, and STM32 processing unit uses STM32F103, temperature sensor
Using DS18b20, gas sensor uses MQ-7, and smoke sensor device uses MQ-2.
Wireless sensor network is a kind of specific form, generated and developed by communication network from.Its architecture is inherited
Modern communication networks are generally divided into 3 parts: terminal local area network, transmission network, management network.For wirelessly communicating skill
The characteristics of art, wireless sensor network also highly significant.For example network node quantity is huge, ad hoc multihop networks, short distance
The features such as wireless connection, low-consumption wireless transmission.These crucial features directly affect the service application of sensor network.Nothing
Line sensor network is applied to many fields with its unique framework and feature, such as: home control, smart meter reading, medical treatment prison
The application scenarios such as shield, environmental monitoring.
6LoWPAN technology, that is, IPv6 over IEEE 802.15.4, be IPv6 technical application into wireless personal area network,
It is using IEEE 802.15.4 as bottom standard.Due to its appearance, have been greatly developed wireless personal area network.It
The advantages of be low rate, short distance, low-power consumption etc..IEEE 802.15.4 is LR-WPAN (Low-rate wireless
Personal area network) Typical Representative.The coverage area of extended wireless sensor network is wanted, realizes wireless sensing
Interconnection between device network and wide area network, final method are exactly to realize to assist based on IPv6 agreement and IEEE 802.15.4
The interconnection of view.Since IPv6 technology has the advantage of its own, so 6LoWPAN technology uses IPv6 skill on IEEE802.15.4
Art, the seamless connection between 6LoWPAN technical support wireless sensor network and IPv6 technology, so being very suitable to apply embedding
Enter this field Formulas I Pv6, possesses vast potential for future development.
6LoWPAN wireless sensor network is by many independent 6LoWPAN network insertions to the Internet group at each
6LoWPAN network is owned by some bottoms based on IEEE 802.15.4 standard and network layer uses the wireless sensing of IPv6 agreement
Device node composition.These nodes are divided into simple functions node (Reduced Function Nodes) and global function node (Full
Function Nodes), simple functions node only has the function of data acquisition, and global function node is in addition to that can acquire data
Also have outside and provides the function of routing relaying for other nodes.All these nodes are wirelessly according to star or net
Shape structure links together, node be a bit it is fixed, some are transportable.Each 6LoWPAN network passes through boundary road
It is connected by device with local backbone Internet.
Node in 6LoWPAN network can report oneself state and collected data by border router, can also
To receive control instruction or code by border router.It include one or more boundary in each 6LoWPAN network
Router, the IPv6 address prefix of the node in all 6LoWPAN networks are that broadcast acquisition is carried out by border router.Side
Boundary's router also completes the functions such as Node registry and fault-tolerant processing, so that 6LoWPAN may be implemented in the node in 6LoWPAN network
Free-roaming and movement between network.Unlike common wireless sensor node, the node in 6LoWPAN network is adopted
Data transmit-receive is carried out with the address IPv6, and the address IPv6 of node is unique.
The hardware of fire fire-fighting alarm system is broadly divided into three parts.First part is 6LoWPAN data acquisition net
Network, including environmental monitoring terminal node and router node；Second part is tidal data recovering layer, mainly the boundary 6LoWPAN road
It is made of device node, GPRS communication module and STM32 arm processor；Part III is the Web server of system, is taken by Web
The environmental information for device publication reception GPRS data network transmission of being engaged in, environmental information is accessed by Web site, and melt using data
The algorithm of conjunction is handled, and discriminates whether the possibility that will have fire generation.
System using the acquisition, transmission, processing to multiple environmental parameters, Lai Tiqian discriminates whether that fire will be had.
Monitoring object is that environmental parameters, the major functions such as temperature, CO concentration, smokescope include the acquisition of data, transmission, store and look into
It askes, realizes the monitoring to real time data, and collected data are used with the algorithm process of data fusion, discriminated whether fire
Occur, obtains corresponding decision.System is mainly by 6LoWPAN wireless sensor module node, GPRS transmission module, remote data
Server three parts composition, to realize the corresponding function of system requirements.Overall system architecture is as shown in Figure 1.
Three major parts composition of system is respectively as follows:
(1) 6LoWPAN wireless data acquisition network, the main environmental data collecting for completing terminal simultaneously pass through 6LoWPAN skill
Art and the data of main controller are transmitted, and netted network topology structure is set up, each in monitored environmental field using being distributed in
6LoWPAN terminal collection node acquires environmental data information, and uploads to border router, then passed data by border router
The STM32ARM processing unit for being defeated by upper level is analyzed and is handled.
(2) data convergence layer is mainly made of GPRS module and STM32 processing unit.Under 6LoWPAN data acquisition network
All collected data of terminal node, are sent to STM32 processor by border router.At the STM32 that this system uses
Managing device is that STM32F103 microcontroller chip is sent to after STM32 processor pre-processes the data received
GPRS module finally reaches Web server and is stored in database through GPRS data transmission of network to Ethernet.This layer is connection
The bridge of 6LoWPAN wireless data acquisition network and Web server realizes the teleengineering support of local data.
(3) Web server, the mainly data of publication 6LoWPAN wireless data acquisition network acquisition, pass through GPRS data
Network is uploaded to Web server, then establishes Web site using PHP technology, and the end PC, mobile terminal may have access to Web site,
To reach the mobility for improving monitoring center to environmental parameter real-time monitoring.
In conclusion system cost is cheap, is easily installed maintenance, functionally not only completes and the data of environment are adopted
Collection stores data in the database of Web server through 6LoWPAN network transmission to main controller, then by GPRS data network,
The monitoring to environment is realized, and using the algorithm of data fusion, improves system to the discriminating power of fire, reduces system
It reports rate of failing to report by mistake, achievees the effect that give warning in advance, enhance the accuracy of system.
System hardware composed structure；
Environmental monitoring terminal is mainly made of three sensors, fire-fighting executing agency and wireless sensor network, Ke Yitong
When temperature collection, three CO concentration, smokescope data parameters, environmental monitoring terminal structure is as shown in Figure 2.It sends data to
STM32 processor calculates the pre- judgement for completing fire using respective algorithms.If it is determined that be likely to occur fire, then will detect
Data information is sent to Web server by GPRS data network.Environmental sensor is the foundation of whole system, its property
Fine or not there can be direct influence to fire judgement.
Temperature sensor uses DS18b20, has the characteristics that small in size, strong antijamming capability and precision are high.Smog is dense
Degree sensor and CO concentration sensor are respectively MQ-2 and MQ-7, and MQ-2 stability is high, it is found that the response time is short when fire behavior, works
Performance is good.MQ-7 has the advantages that very high sensitivity, long service life, stability is reliable, MQ system to carbon monoxide
The circuit hardware G- Design of sensor be all it is identical, as shown in Figure 3.
The hardware realization of 6LoWPAN system wireless network；
6LoWPAN technology is key technology method used in system wireless network transmission, is completed in monitoring region
Environment information acquisition, transmission.It completes data transmission by the communication between terminal node, routing node and border router,
Realize silo environmental information and the monitoring data of terminal and exchanging for information.
The hardware that this system uses is micro- based on Contiki development platform and IEEE 802.15.4 physical transfer network
System IPv6 development kit, by transmission node (MX231CC), transmission module (wireless network card MX-USBStick), intelligent radio net
Close composition.
Wherein MXG300 is SmeshLink IPv6 intelligent radio gateway.SmeshLink IPv6 intelligent radio gateway is based on
OPENWRT system is completed, and has 3 local network interfaces, 1 wide area network interface, 1 802.11a/b/g WiFi radio network interface, and 1
A standard USB port and 1 optional AccessPort mouth.The intelligent radio gateway remove have the function of wireless universal router with
Outside, it the USB UIP network interface card based on Contiki operating system can also realize between UIP network and general IP network simultaneously
IPv6 interconnection, while competent system also being supported to develop the application software package of oneself on the basis of OPENWRT, it realizes more multiple
Miscellaneous application.Communication between server and gateway is completed by wide area network interface.
STICK refers to that MX-USBSTICK accesses network interface card, is routed in the network interface card using Contiki operating system and RPL
Agreement, major function are to realize the conversion of ICP/IP protocol stack and 6LoWPAN protocol stack.
MX231CC wireless sensor node is the low power consumption node based on IEEE 802.15.4 standard, using IPv6
Location.Contiki operating system is run on node, supports http protocol and CoAP agreement, any browser for supporting IPv6 agreement
HTTP or the CoAP service of MX231CC offer can be provided.
MX231CC is the sensor node that can run IPv6 agreement, and the main chip on node is ATMEGA1284P,
It has the programmable flash memory of 128KB, SRM in the piece of the EEPROM of 4KB, 16KB, jtag interface, the power consumption and processing speed of optimization
Degree.Contiki system is run on node.There are also photosensitive sensor, indoor temperature transmitter, three-color LED indicator lights etc. on node.
Node supports Contiki programming.
The microprocessor unit of system is the core of whole system, like the brain for being people, controls entire fire hazard monitoring
Network.Web server receives the environmental data information that GPRS data transmission of network is come, and is believed by the algorithm of data fusion environment
Breath is merged, and can be judged the situation occurred of fire in advance, then be exported corresponding decision information, decides whether triggering report
Alert, control linkage etc..Whether the router that system can also inquire in network breaks down or sensor fault etc., guarantees
The normal monitoring of system.
When judging to have fire that will occur or occur after systematic microprocessor unit merges data information, stand
Start warning device and fire-fighting link device.Firstly, starting alarm jingle bell, allows staff to know that the region has occurred and that fire
Calamity.If it is judged that starting fire-fighting link device, such as spray pump, fire pump, fire-fighting emergency headlamp when having occurred and that fire
Deng.
Temperature sensor uses DS18b20, DS18b20 to have the characteristics that small in size, strong antijamming capability and precision are high.
Smokescope sensor and CO concentration sensor are respectively MQ-2 and MQ-7, and MQ-2 stability is high, when finding fire behavior
Response time is short, and working performance performance is good.MQ-7 has very high sensitivity, long service life, stability to carbon monoxide
The advantages that reliable, the circuit hardware G- Design of MQ series sensor are all identical.
The design of ARM module；
This time design gateway controller uses ARM chip, concrete model STM32F103, cost performance height, performance
, there is very high occupation rate in the characteristics of superior and low-power consumption on the market.STM32F103 passes through serial ports and 6LowPAN border router
Communication receives the environmental data information that terminal collection node is sent in 6LowPAN network, after parsing, handling, control
SIM900A module sends AT order to module, opens GPRS data network, transmits environmental data information by GPRS network
Into the database of server, major function is control processing data between 6LowPAN Intranet and GPRS data network
Transmission.
STM32F103 is enhanced series, is based on ARM core using high performance 32, working frequency is the micro- of 72MHz
Controller, interface include USART, USB, CAN, I2C, SPI and I2S etc., powerful, there is multiple 12 ADC, PWM timers
With 16 bit timing devices, internal high-speed memories can be connected to the APB bus, 144 pin packages and enhanced I/ of peripheral hardware
O port etc..
The hardware design of GPRS module；
GPRS technology is a kind of widely applied remote radio communication technology.The communication module that this secondary design uses be by
The SIM900A module that SIMCOM company provides has standard AT command interface, can provide the business such as GSM voice, short message.
The circuit of the SIM900A module of this secondary design mainly includes power circuit, serial interface circuit, SIM card circuit etc..
Serial interface circuit design；
SIM900A is powered using single supply, sends and receives AT command function, sim module by serial ports completion system
Serial ports has to pass through level conversion and can just communicate with RS-232.This secondary design is complete using the electrical level transferring chip SP3232 of 3.3V
At level conversion.
Claims (7)
1. a kind of wireless fire protection alarm system, which is characterized in that including several reception temperature sensors, gas sensor and smog
The 6LoWPAN terminal node of sensor signal, all 6LoWPAN terminal nodes connect 6LoWPAN border router, 6LoWPAN
Border router connects STM32 processing unit by 6LoWPAN gateway, and STM32 processing unit connects Web by wireless module and takes
Business device, Web server connect client.
2. a kind of wireless fire protection alarm system according to claim 1, which is characterized in that the wireless module includes GPRS
Module, and controlled by monitoring personnel.
3. a kind of wireless fire protection alarm system according to claim 2, which is characterized in that the GPRS module uses
SIM900A module.
4. a kind of wireless fire protection alarm system according to claim 1, which is characterized in that the 6LoWPAN terminal node
It is connected with power module, Anneta module and fire-fighting control module.
5. a kind of wireless fire protection alarm system according to claim 1, which is characterized in that the 6LoWPAN terminal node
Pass through wireless network connection wireless network card MX-USBStick, nothing including several transmission node MX231CC, transmission node MX231CC
Gauze card MX-USBStick connects radio network gateway MXG300, radio network gateway MXG300 connection server by USB interface.
6. a kind of wireless fire protection alarm system according to claim 1, which is characterized in that the STM32 processing unit is adopted
Use STM32F103.
7. a kind of wireless fire protection alarm system according to claim 1, which is characterized in that the temperature sensor uses
DS18b20, gas sensor use MQ-7, and smoke sensor device uses MQ-2.
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| CN201821833785.0U CN209149527U (en) | 2018-11-07 | 2018-11-07 | A kind of wireless fire protection alarm system |
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| CN201821833785.0U CN209149527U (en) | 2018-11-07 | 2018-11-07 | A kind of wireless fire protection alarm system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110807905A (en) * | 2019-10-23 | 2020-02-18 | 北方工业大学 | Community fire monitoring system based on end-edge-cloud architecture |
| CN110996285A (en) * | 2019-11-15 | 2020-04-10 | 中南大学 | College intelligent fire service system based on 6LoWPAN and design method |
| CN111181823A (en) * | 2019-12-31 | 2020-05-19 | 深圳前海达闼云端智能科技有限公司 | Network transmission system based on CAN bus and robot system |
| CN113223264A (en) * | 2021-05-08 | 2021-08-06 | 南通理工学院 | QPSO-BP neural network-based intelligent fire early warning system and method |
-
2018
- 2018-11-07 CN CN201821833785.0U patent/CN209149527U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110807905A (en) * | 2019-10-23 | 2020-02-18 | 北方工业大学 | Community fire monitoring system based on end-edge-cloud architecture |
| CN110996285A (en) * | 2019-11-15 | 2020-04-10 | 中南大学 | College intelligent fire service system based on 6LoWPAN and design method |
| CN111181823A (en) * | 2019-12-31 | 2020-05-19 | 深圳前海达闼云端智能科技有限公司 | Network transmission system based on CAN bus and robot system |
| CN111181823B (en) * | 2019-12-31 | 2021-11-05 | 达闼机器人有限公司 | Network transmission system based on CAN bus and robot system |
| CN113223264A (en) * | 2021-05-08 | 2021-08-06 | 南通理工学院 | QPSO-BP neural network-based intelligent fire early warning system and method |
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Granted publication date: 20190723 Termination date: 20191107 |