CN106406202A - Building environment safety monitoring device based on LoRa technology - Google Patents
Building environment safety monitoring device based on LoRa technology Download PDFInfo
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- CN106406202A CN106406202A CN201610917882.7A CN201610917882A CN106406202A CN 106406202 A CN106406202 A CN 106406202A CN 201610917882 A CN201610917882 A CN 201610917882A CN 106406202 A CN106406202 A CN 106406202A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a building environment safety monitoring device based on a LoRa technology. The device comprises a LoRa sensing unit, a collector, upper computer software and a mobile device, the LoRa sensing unit is connected with the collector, and the collector is connected with the upper computer software and the mobile device; the LoRa sensing unit is configured to complete the collection, the caching, the preprocessing and the transmission of the data information of the environment of the building to be monitored; the collector is configured to receive and store data from the LoRa sensing unit, transmit the data to the upper computer software through a wire communication mode and transmit the data to the mobile device through the wireless communication mode; the upper computer software is operated in the computer host to provide the interface software of building environment safety monitoring; and the mobile device is configured to receive the data sent by the collector, and workers can check the data of the building environment through the carrying mobile device. The building environment safety monitoring device based on the LoRa technology is low in cost, low in power consumption and simple to operate, and can effectively satisfy the requirement of the building environment safety monitoring.
Description
Technical field
The present invention relates to wireless communication technology field, it is specifically related to a kind of prison of the building Environmental security based on LoRa technology
Survey device.
Background technology
In life, the safety problem topic that always people pay close attention to of building.Case as fire, toxic gas leakage
Example happens occasionally, sometimes because timely not finding, thus causing great life and property loss.With regard to building environment peace
The research of the method for full monitoring was not interrupted always, such as security personnel's inspection method of early stage and video surveillance method.And with Internet of Things skill
The rise of art and going deep into of research, application in safety monitoring field for the technology of Internet of things gets more and more, such as with sensing function
RFID（RF identification）Technology has been successfully applied to building safety monitoring field.
However, traditional security personnel's inspection method has poor real, human cost height, the deficiency of poor reliability；More advanced
Video surveillance method be difficult to non-blind area, and easily be subject to illumination effect；Emerging RFID technique is a certain degree of overcome above
Problem, Application No. 201510315515.5, Publication No. 104979618A《RFID label tag》Label in patent read away from
From only 11-13 rice, in order to overcome the short shortcoming of its transmission range, generally require to arrange reader expensive in a large number, not only cloth
Put relatively complicated and relatively costly.
Content of the invention
The technical problem to be solved is to overcome the shortcomings of above-mentioned background technology, meets that communication distance is remote, power consumption
Low, low cost, device arrangement is simple and monitoring effectively requires in real time, provides a kind of building Environmental security based on LoRa technology
Monitoring device.
The technical solution adopted for the present invention to solve the technical problems is：A kind of building Environmental security based on LoRa technology
Monitoring device includes LoRa sensing unit, harvester, upper computer software（Main frame）And mobile device, LoRa sensing unit
Connect with harvester, harvester is connected with upper computer software and mobile device respectively；Described LoRa sensing unit be disposed in by
In each floor of monitoring building（As places such as the stair of floor, light current well, power distribution room and offices）, it is used for completing building to be measured
The collection of the data message of space environment, caching, pretreatment and transmission, and heat transfer agent is packaged into the first packet, transmit to
Harvester；Harvester be used for receiving and storage from LoRa sensing unit data, after demodulated, data deletion, modulation, point
Communicate for two kinds of communication modes, the first packs the data to the second packet, and to pass to host computer by wired communication mode soft
Part, wire communication can be RS232 and RS485；Second is packed the data to the 3rd packet and is passed to by communication
Mobile device, radio communication can be GPRS and 4G；Described upper computer software runs in main frame, for receiving harvester
The second packet sending, provides the interface software of building safety environmental monitoring, provides the payment of the second packet to connect simultaneously
Mouthful, other analysis platforms that the second packet is consigned to main frame that can be seamless（As Matlab, Labview etc.）Enter
Row follow-up process, analysis and backup；Described mobile device is used for receiving the 3rd packet that harvester sends, and provides building
The interface software of security context monitoring, in the effective range of building Environmental safety supervision device, staff can be by taking
The mobile device of band checks building environmental data data.
Further, described LoRa sensing unit and harvester are led to using the communication based on linear spread spectrum
News.Described harvester and upper computer software are communicated by wired communication mode, and harvester and mobile device pass through side wireless communication
Formula communicates.
Further, described LoRa sensing unit includes baroceptor, Temperature Humidity Sensor, CO（Carbon monoxide）Sensing
Device, CO2（Carbon dioxide）Sensor, HCHO（Formaldehyde）Sensor, MCU（Single-chip microcomputer）, LoRa module and system power supply.Air pressure transmission
Sensor is connected with MCU；Temperature Humidity Sensor is connected with MCU；CO sensor is connected with MCU；CO2Sensor is connected with MCU；
HCHO sensor is connected with MCU；MCU is connected with LoRa module.System power supply respectively with baroceptor, Temperature Humidity Sensor,
CO sensor, CO2Sensor, HCHO sensor, MCU and LoRa module connect.
Described baroceptor, by IIC（Inter-Integrated Circuit：Integrated circuit）Bus and MCU
Communicated, the barometric information recording is transferred to MCU, received the control command from MCU；
Described Temperature Humidity Sensor, is communicated by iic bus and MCU, and the temperature and humidity recording data is transferred to
MCU, receives the control command from MCU；
Described CO sensor, for changing into analogue signal by CO concentration parameter（Voltage or current signal）, described analogue signal
Can advantageously be gathered by embedded ADC in MCU；
Described CO2Sensor, for by CO2Concentration parameter changes into analogue signal（Voltage or current signal）, described simulation letter
Number can advantageously be gathered by embedded ADC in MCU；
Described HCHO sensor, for changing into analogue signal by HCHO concentration parameter（Voltage or current signal）, described simulation
Signal can advantageously be gathered by embedded ADC in MCU；
Described MCU, is the control section of LoRa sensing unit, completes described baroceptor by iic bus and humiture passes
The configuration of sensor, reads air pressure, the temperature and humidity information of described baroceptor and Temperature Humidity Sensor simultaneously；Described MCU
Enable embedded ADC, complete to CO sensor, CO2The adopting of the analogue signal that sensor and HCHO sensor are converted to
Collection；Described MCU is by air pressure, temperature, humidity and CO, CO2, HCHO concentration information be packaged into raw sensory packet；Described MCU
By UART（Universal asynchronous receiving-transmitting transmitter）With LoRa module communication, for LoRa module pay raw sensory packet；
Described LoRa module, for receiving the raw sensory packet from MCU, and described raw sensory data envelope is dressed up
First packet；Described LoRa module employs band spectrum modulation and forward error correction technique.
Described system power supply, for baroceptor, Temperature Humidity Sensor, CO sensor, CO2Sensor, HCHO sensor,
MCU and LoRa module for power supply.
The building Environmental safety supervision device based on LoRa technology of the present invention, communication distance is remote, low in energy consumption, low cost,
Device arrangement is simple and monitoring is effective in real time, simple to operate, can effectively meet the demand of building Environmental safety supervision.
Brief description
Fig. 1 is the population structure block diagram based on the building Environmental safety supervision device of LoRa technology for the present invention；
Fig. 2 is the concrete structure frame of the LoRa sensing unit of building Environmental safety supervision device shown in Fig. 1 based on LoRa technology
Figure.
Specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
With reference to Fig. 1, the present invention based on the building Environmental safety supervision device of LoRa technology include LoRa sensing unit U1,
Harvester U2, upper computer software U3（Main frame U4）With mobile device U5；LoRa sensing unit U1 and harvester U2 adopts
Communication communication based on linear spread spectrum；Harvester U2 and upper computer software U3 passes through wired communication mode and leads to
News, harvester U2 and mobile device U5 is communicated by communication.
LoRa sensing unit U1 is disposed in the stair of each floor, light current well, power distribution room and the office of monitored building
The places such as room, for completing collection, caching, pretreatment and the transmission of the data message of building environment to be measured, and by heat transfer agent
It is packaged into the first packet, transmit to harvester U2；It is provided with N altogether in the present embodiment（N≥1）Individual LoRa sensing unit U1.
Harvester U2 be used for receiving and storage from LoRa sensing unit U1 data, demodulated, data deletion, modulation
Afterwards, it is divided into two kinds of communication mode communications, the first is to pack the data to the second packet to be transferred to by wired communication mode
Upper computer software U3, wire communication can be RS232 and RS485；Second is to pack the data to the 3rd packet to pass through wirelessly
Communication mode is transferred to mobile device U5, and radio communication can be GPRS and 4G.
Upper computer software U3 runs in main frame U4, for receiving the second packet that harvester U2 sends,
The interface software of building Environmental safety supervision is provided, the payment interface of the second packet is provided simultaneously, can be seamless by second
Other analysis platforms that packet consigns to main frame U4 carry out follow-up process, analysis and backup.
Mobile device U5 is used for receiving the 3rd packet that harvester U2 sends, and provides the boundary of building safety environmental monitoring
Thin-skinned part, in the effective range of building safety monitoring device, staff can check building by the mobile device carrying
Environmental data data.
With reference to Fig. 2, LoRa sensing unit U1 includes baroceptor U11, Temperature Humidity Sensor U12, CO sensor U13, CO2Pass
Sensor U14, HCHO sensor U15, MCU U16, LoRa module U17 and system power supply U18.Baroceptor U11 and MCU U16
Connect；Temperature Humidity Sensor U12 is connected with MCU U16；CO sensor U13 is connected with MCU U16；CO2Sensor U14 and MCU
U16 connects；HCHO sensor U15 is connected with MCU U16；MCU U16 is connected with LORA module U17.System power supply U18 respectively and
Baroceptor U11, Temperature Humidity Sensor U12, CO sensor U13, CO2Sensor U14, HCHO sensor U15, MCU U16
And LoRa module U17 connects.
Baroceptor U11, is communicated by iic bus and MCU U16, the barometric information recording is transferred to MCU
U16, receives the control command from MCU U16；
Temperature Humidity Sensor U12, is communicated by iic bus and MCU U16, the temperature and humidity recording data is transferred to
MCU U16, receives the control command from MCU U16；
CO sensor U13, for changing into analogue signal by CO concentration parameter（Voltage or current signal）, analogue signal can facilitate
Ground is gathered by embedded ADC in MCU U16；
CO2Sensor U14, for by CO2Concentration parameter changes into analogue signal（Voltage or current signal）, analogue signal can be just
Profit ground is gathered by embedded ADC in MCU U16；
HCHO sensor U15, for changing into analogue signal by HCHO concentration parameter（Voltage or current signal）, analogue signal can
Advantageously gathered by embedded ADC in MCU U16；
MCU U16, is the control section of LoRa sensing unit U1, completes described baroceptor and humiture by iic bus
The configuration of sensor, reads air pressure, the temperature and humidity information of described baroceptor U11 and Temperature Humidity Sensor U12 simultaneously；
MCU U16 enables embedded ADC, completes to CO sensor U13, CO2Sensor U14 and HCHO sensor U15 is converted
The collection of the analogue signal going out；MCU U16 is by air pressure, temperature, humidity and CO, CO2, HCHO concentration information be packaged into original biography
Sense packet；MCU U16 passes through UART and LoRa module U17 and communicates, for paying raw sensory data to LoRa module U17
Bag.
LoRa module U17, for receiving the raw sensory packet from MCU U16, and by described raw sensory data
The first packet is dressed up in encapsulating；LoRa module U17 employs band spectrum modulation and forward error correction technique.
System power supply U18, for baroceptor U11, Temperature Humidity Sensor U12, CO sensor U13, CO2Sensor
U14, HCHO sensor U15, MCU U16 and LoRa module U17 is powered.
The building Environmental safety supervision device based on LoRa technology of the present invention, circuit scale is little, and hardware integration degree is high, becomes
This is low, is easy to arrange, can be used for effective monitoring of building Environmental security.
The building Environmental safety supervision device based on LoRa technology of the present invention, communication distance is remote and strong antijamming capability.
Using the communication mode communication based on LoRa technology between LoRa module of the present invention and described harvester.Described LoRa module
The receiving sensitivity of the radio frequency chip of middle employing is very high.As the SX1278 chip of SMETECH company, it accepts sensitivity can be high
Reach -139dBm, general RFID label tag accept sensitivity generally about -20dBm.Therefore the communication distance of the present invention is compared
RFID label tag is farther, and more can extract useful signal from noise.
The building Environmental safety supervision device based on LoRa technology of the present invention, described LoRa sensing unit is low in energy consumption.This
The sensor adopting in invention, MCU and LoRa module are all based on the principle of low-power consumption to configure, and such as MCU can adopt T1
MSP430FR5969, its operating current can as little as 100 μ A/MHz, quiescent current can as little as 1 μ A/MHz.Due to building ambient parameter
Relatively stable for a long time, the wakeup time of LoRa sensing unit of the present invention is much smaller than dormancy time, without loss of generality, long
In time, wakeup time is about the 0.5% of dormancy time, and after single wake-up, described MCU quickly completes the collection of described environment parameter
And transmission, thus significantly reduce the power consumption of described LoRa sensing unit.
The building Environmental safety supervision device based on LoRa technology of the present invention, low cost, device arrangement simply and are monitored
Effective in real time.In the present invention, single harvester can manage up to 400 LoRa sensing units by hub-and-spoke configuration, has cost
The little advantage of low, time delay.The communication that the present invention adopts decreases the wiring cost of device, simplifies the wiring of device
Flow process.
Those skilled in the art can carry out various modifications and variations to the present invention, if these modifications and modification are at this
Within the scope of invention claim and its equivalent technologies, then these modifications and modification are also within protection scope of the present invention.
The prior art that the content not described in detail in description is known to the skilled person.
Claims (4)
1. a kind of building Environmental safety supervision device based on LoRa technology it is characterised in that：Including LoRa sensing unit, collection
Device, upper computer software and mobile device, LoRa sensing unit and harvester connect, harvester respectively with upper computer software and movement
Equipment connects；Described LoRa sensing unit is disposed in stair in each floor of described monitored building, light current well, power distribution room
Indoor with office, for completing collection, caching, pretreatment and the transmission of the data message of building environment to be measured, and sensing is believed
Breath is packaged into the first packet, transmits to harvester；Harvester is used for the data receiving and storing from LoRa sensing unit, warp
Cross demodulation, data deletion, after modulation, be divided into two kinds of communication modes communications, the first is to pack the data to the second packet to lead to
Cross wired communication mode and be transferred to upper computer software, wire communication can be RS232 and RS485；Second is to pack the data to
3rd packet is transferred to mobile device by communication, and radio communication can be GPRS and 4G；Described upper computer software
Main frame runs, for receiving the second packet that harvester sends, provides the boundary of building safety environmental monitoring
Thin-skinned part, provides the payment interface of the second packet simultaneously, can be seamless the second packet is consigned to main frame
Other analysis platforms carry out follow-up process, analysis and backup；Described mobile device is used for receiving the 3rd that harvester sends
Packet, provides the interface software of building safety environmental monitoring, in the effective range of building Environmental safety supervision device, work
Personnel can check the data information of building environment by the mobile device carrying.
2. the building Environmental safety supervision device based on LoRa technology as claimed in claim 1 it is characterised in that：Described LoRa
Sensing unit and harvester are using the communication communication based on linear spread spectrum.
3. the building Environmental safety supervision device based on LoRa technology as claimed in claim 1 or 2 it is characterised in that:Institute
State LoRa sensing unit and include baroceptor, Temperature Humidity Sensor, CO sensor, CO2Sensor, HCHO sensor, MCU,
LoRa module and system power supply；Baroceptor is connected with MCU；Temperature Humidity Sensor is connected with MCU；CO sensor is with MCU even
Connect；CO2Sensor is connected with MCU；HCHO sensor is connected with MCU；MCU is connected with LoRa module；System power supply is gentle respectively
Pressure sensor, Temperature Humidity Sensor, CO sensor, CO2Sensor, HCHO sensor, MCU and LoRa module connect；
Described baroceptor, is communicated by iic bus and MCU, and the barometric information recording is transferred to MCU, receives
Control command from MCU；
Described Temperature Humidity Sensor, is communicated by iic bus and MCU, and the temperature and humidity recording data is transferred to
MCU, receives the control command from MCU；
Described CO sensor, for CO concentration parameter is changed into analogue signal, described analogue signal can be advantageously by interior in MCU
Embedding ADC collection；
Described CO2Sensor, for by CO2Concentration parameter changes into analogue signal, and described analogue signal can be advantageously by MCU
Embedded ADC collection；
Described HCHO sensor, for HCHO concentration parameter is changed into analogue signal, described analogue signal can be advantageously by MCU
In embedded ADC collection；
Described MCU is the control section of LoRa sensing unit, completes described baroceptor and temperature and humidity sensing by iic bus
The configuration of device, reads air pressure, the temperature and humidity information of described baroceptor and Temperature Humidity Sensor simultaneously；Described MCU opens
With embedding ADC, complete to CO sensor, CO2The collection of the analogue signal that sensor and HCHO sensor are converted to；
Described MCU is by air pressure, temperature, humidity and CO, CO2, HCHO concentration information be packaged into raw sensory packet；Described MCU leads to
Cross UART and LoRa module communication, for paying raw sensory packet to LoRa module；
Described LoRa module, for receiving the raw sensory packet from MCU, and described raw sensory data envelope is dressed up
First packet；Described LoRa module employs band spectrum modulation and forward error correction technique；
Described system power supply, for baroceptor, Temperature Humidity Sensor, CO sensor, CO2Sensor, HCHO sensor,
MCU and LoRa module for power supply.
4. the building Environmental safety supervision device based on LoRa technology as claimed in claim 1 or 2 it is characterised in that：Described
Other analysis platforms of main frame are Matlab, Labview.
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| CN201610917882.7A CN106406202A (en) | 2016-10-21 | 2016-10-21 | Building environment safety monitoring device based on LoRa technology |
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| CN107196417A (en) * | 2017-07-21 | 2017-09-22 | 福州大学 | Low-voltage distribution running status remote supervision system based on LoRa mechanicss of communication |
| CN107909761A (en) * | 2017-11-08 | 2018-04-13 | 合肥工业大学 | Fire rescue site monitoring system based on NB IoT technologies |
| CN108961721A (en) * | 2018-08-28 | 2018-12-07 | 深圳大学 | The control system of intelligent switch panel |
| CN109239267A (en) * | 2018-09-17 | 2019-01-18 | 青岛海尔科技有限公司 | A kind of gas content detection method and system |
| CN110160588A (en) * | 2019-06-24 | 2019-08-23 | 上海旭宇信息科技有限公司 | A kind of Intelligent environment monitoring system based on wireless data transmission platform |
| CN111076762A (en) * | 2019-12-31 | 2020-04-28 | 湖南景程电子科技有限公司 | Wireless electronic instrument configuration integrated system |
| CN112202478A (en) * | 2020-09-30 | 2021-01-08 | 苏州希格玛科技有限公司 | LoRa wireless transmission RFID read-write system |
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Application publication date: 20170215 |