CN207423913U - A kind of underground coal mine wireless gas sensor based on LORA - Google Patents
A kind of underground coal mine wireless gas sensor based on LORA Download PDFInfo
- Publication number
- CN207423913U CN207423913U CN201721464678.0U CN201721464678U CN207423913U CN 207423913 U CN207423913 U CN 207423913U CN 201721464678 U CN201721464678 U CN 201721464678U CN 207423913 U CN207423913 U CN 207423913U
- Authority
- CN
- China
- Prior art keywords
- lora
- control circuit
- mcu control
- coal mine
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model is related to a kind of underground coal mine wireless gas sensor based on LORA, the power module connection gas management module, MCU control circuit and LORA communication modules are powered for it；The output signal end communication of MCU control circuit and gas management module connects；LORA communication modules are connected by spi bus with the MCU control circuit；Further include the alarm module being connected with MCU control circuit.The beneficial effects of the utility model are：1. using the wireless communication technique based on LORA, without being laid with cable, it is easily installed, reduces cost, save the time of radiating cable.2. installation site scope is wide, the check frequency of wired firedamp sensor can be installed to.3. being moved easily, can be promoted as working in driving face of coal mine is pushed ahead.4. it is low in energy consumption, internal electric source power supply may be employed.And at the same time devising two kinds of power supply modes of external power supply and internal electric source, power supply mode can be selected according to on-site actual situations.
Description
Technical field
The utility model belongs to safety of coal mines detection monitoring field more particularly to a kind of underground coal mine based on LORA is wireless
Firedamp sensor.
Background technology
Gas main component is alkane, and wherein methane accounts for the overwhelming majority, is direct prestige the main reason for triggering explosion of coal mines
The life security of miner is coerced, destroys mine facility, gas explosion becomes the maximum hidden danger of China's coal-mine safety in production.Therefore,
It has in real time be detected gas.
The firedamp sensor of current underground mine use mostly using Data Over Cable, can so bring some shortcomings and ask
Topic.1）It is high to be laid with cable cost, it is bothersome laborious.2）Installation site is relatively fixed and limitation is big, it is impossible to which being laid on people cannot arrive
The place installation reached, can generate gas management blind area.3）Be inconvenient to move, when working in driving face of coal mine is pushed ahead, it is also necessary to again
Firedamp sensor is installed, cable is re-lay, adds cost and time.4）Power consumption is high, it is necessary to which external provide power supply.
Utility model content
Technical problem to be solved in the utility model is：A kind of underground coal mine wireless gas sensing based on LORA is provided
Device, compared to current wireless senser, based on the wireless senser of the LORA communication technologys, power consumption is lower, can transmit away from
From farther, antijamming capability further improves.And switched wireless data can be passed through between two novel sensors.
The utility model is to solve the problems, such as that used technical solution set forth above is：
A kind of underground coal mine wireless gas sensor based on LORA, including power module 1, gas management module 2, MCU
Control circuit 3, LORA communication modules 4, the power module 1 connect gas management module 2, MCU control circuit 3 and LORA communications
Module 4 is powered for it；MCU control circuit 3 and the output signal end communication of gas management module 2 connect；LORA communication modules 4,
It is connected by spi bus with the MCU control circuit 3；Further include the alarm module 5 being connected with MCU control circuit 3, when watt
This concentration value is in the risk range of setting, and alarm module 5 sends alarm at this time.
The power module 1 includes lithium battery power supply 11, externally fed circuit 12 and toggle switch 13, lithium battery power supply
11 and externally fed circuit 12 be connected with toggle switch 13, since the power consumption of LORA wireless communications is extremely low, so the sensor
Lithium battery power supply may be employed, while design the circuit using externally fed.It can so select to supply according to on-site actual situations
Electrically.Toggle switch（SW1）External power supply power supply is selected at 1-2 positions, power supply inputs for 7-40V Width funtions at this time.It dials
Dynamic switch（SW1）Sensor internal lithium battery power supply, input voltage 5V are selected at 2-3 positions.
The MCU control circuit 3 includes MCU and its peripheral circuit, and the power module 1 is connected to its offer with MCU
Working power, MCU are connected with gas management module 2, and gas management module 2 passes the data collected by signal processing circuit
It is defeated by MCU, MCU and LORA communication module to be connected, by treated, data are sent through LORA communication modules.The periphery electricity
Road further includes signal processing circuit, indicating fault, button reset, power supply indicator, warning circuit.
Multiple interfaces are provided in the MCU control circuit 3, the spi bus is connected to described through multiple interfaces
4 module of LORA communication modules.
The alarm module 5 is specially audible-visual annunciator.
The gas management module 2 is using catalytic action of the utilization catalysis element to combustible gas.Work as environment
In when there is no fuel gas, catalysis element and compensating element, will not all react in electric bridge, thus circuit is in equilibrium state,
Do not have output quantity.When there are during fuel gas, since oxidation reaction occurs for catalysis element, electric bridge not releveling, output voltage
Signal, this voltage signal is directly proportional to gas concentration, so as to measure gas density.The voltage signal is by signal processing circuit
MCU is transferred to after reason.
The LORA communication modules 4, including LORA chips, LORA chips use SX1278 radio frequency chips.MCU passes through
SPI interface and LORA chip communications.LORA chips, which are responsible for realizing, is transferred to down the gas density that gas management module detects
One wireless senser or LORA base stations.
A kind of underground coal mine wireless transmitting system based on LORA, including the above-mentioned underground coal mine wireless gas based on LORA
Sensor further includes LORA gateways 6 and monitoring center 7, the LORA communications of the underground coal mine wireless gas sensor based on LORA
Module 4, after converting the data to LORA data, by the LORA data sendings to the LORA gateways 6；It is described
LORA gateways 6 for receiving the LORA data, and are sent to the monitoring after the LORA data are converted to data on flows
Center 7；Monitoring center 7 is used to check the related data information that gas management module 2 gathers.
The operation principle of the utility model：Power module provides power supply for whole system, near the detection of gas management module
The data collected are simultaneously transferred to MCU by gas density after treatment, and MCU handles the data received, if should
Data are more than that the critical value of setting will send alarm, while the data received are converted to and meet LORA communications protocol by MCU
Data are transferred to next sensor either LORA modules or LORA gateways by LORA communication modules.
The beneficial effects of the utility model are：1. the wireless communication technique based on LORA is used, without being laid with cable,
It is easily installed, reduces cost, save the time of radiating cable.2. installation site scope is wide, wired methane sensing can be installed to
The check frequency of device.3. being moved easily, can be promoted as working in driving face of coal mine is pushed ahead.4. it is low in energy consumption, it may be employed interior
Portion's power supply power supply.And at the same time two kinds of power supply modes of external power supply and internal electric source are devised, it can be according to on-site actual situations
Select power supply mode.5th, compared to current wireless senser, based on the wireless senser of the LORA communication technologys, power consumption is lower,
The distance that can be transmitted is farther, and antijamming capability further improves.It can pass through nothing between 6 and two novel sensors
Line exchanges data.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the circuit diagram of power module.
Wherein, 1- power modules, 2- gas management modules, 3-MCU control circuits, 4-LORA communication modules, 5- alarm moulds
Block, 6-LORA gateways, 7- monitoring centers, 11- lithium battery power supplies, 12- externally fed circuits, 13- toggle switches.
Specific embodiment
The embodiment of the utility model is further illustrated below in conjunction with the accompanying drawings.
With reference to Fig. 1-2, a kind of underground coal mine wireless gas sensor based on LORA described in present embodiment, bag
Power module 1, gas management module 2, MCU control circuit 3, LORA communication modules 4 are included, the power module 1 connects gas inspection
Module 2, MCU control circuit 3 and LORA communication modules 4 is surveyed to power for it；The output of MCU control circuit 3 and gas management module 2
Signal end communication connects；LORA communication modules 4 are connected by spi bus with the MCU control circuit 3；It further includes and MCU
The connected alarm module 5 of control circuit 3, when gas concentration is in the risk range of setting, alarm module 5 sends report at this time
It is alert.
The power module 1 includes lithium battery power supply 11, externally fed circuit 12 and toggle switch 13, lithium battery power supply
11 and externally fed circuit 12 be connected with toggle switch 13, since the power consumption of LORA wireless communications is extremely low, so the sensor
Lithium battery power supply may be employed, while design the circuit using externally fed.It can so select to supply according to on-site actual situations
Electrically.Toggle switch（SW1）External power supply power supply is selected at 1-2 positions, power supply inputs for 7-40V Width funtions at this time.It dials
Dynamic switch（SW1）Sensor internal lithium battery power supply, input voltage 5V are selected at 2-3 positions.
The MCU control circuit 3 includes MCU and its peripheral circuit, and the power module 1 is connected to its offer with MCU
Working power, MCU are connected with gas management module 2, and gas management module 2 passes the data collected by signal processing circuit
It is defeated by MCU, MCU and LORA communication module to be connected, by treated, data are sent through LORA communication modules.The periphery electricity
Road further includes signal processing circuit, indicating fault, button reset, power supply indicator, warning circuit.
Multiple interfaces are provided in the MCU control circuit 3, the spi bus is connected to described through multiple interfaces
4 module of LORA communication modules.
The alarm module 5 is specially audible-visual annunciator.
The gas management module 2 is using catalytic action of the utilization catalysis element to combustible gas.Work as environment
In when there is no fuel gas, catalysis element and compensating element, will not all react in electric bridge, thus circuit is in equilibrium state,
Do not have output quantity.When there are during fuel gas, since oxidation reaction occurs for catalysis element, electric bridge not releveling, output voltage
Signal, this voltage signal is directly proportional to gas concentration, so as to measure gas density.The voltage signal is by signal processing circuit
MCU is transferred to after reason.
The LORA communication modules 4, including LORA chips, LORA chips use SX1278 radio frequency chips.MCU passes through
SPI interface and LORA chip communications.LORA chips, which are responsible for realizing, is transferred to down the gas density that gas management module detects
One wireless senser or LORA base stations.
A kind of underground coal mine wireless transmitting system based on LORA, including the above-mentioned underground coal mine wireless gas based on LORA
Sensor further includes LORA gateways 6 and monitoring center 7, the LORA communications of the underground coal mine wireless gas sensor based on LORA
Module 4, after converting the data to LORA data, by the LORA data sendings to the LORA gateways 6；It is described
LORA gateways 6 for receiving the LORA data, and are sent to the monitoring after the LORA data are converted to data on flows
Center 7；Monitoring center 7 is used to check the related data information that gas management module 2 gathers.
The operation principle of present embodiment：Power module provides power supply, the detection of gas management module for whole system
The data collected are simultaneously transferred to MCU by neighbouring gas density after treatment, and MCU handles the data received, such as
The fruit data are more than that the critical value of setting will send alarm, while the data received are converted to and meet LORA communications association by MCU
The data of view are transferred to next sensor either LORA modules or LORA gateways by LORA communication modules.
The advantageous effect of present embodiment is：1. the wireless communication technique based on LORA is used, without being laid with electricity
Cable is easily installed, and reduces cost, saves the time of radiating cable.2. installation site scope is wide, wired gas can be installed to and passed
The check frequency of sensor.3. being moved easily, can be promoted as working in driving face of coal mine is pushed ahead.4. it is low in energy consumption, it may be employed
Internal electric source is powered.And at the same time two kinds of power supply modes of external power supply and internal electric source are devised, it can be according to the actual feelings in scene
Condition selects power supply mode.5th, compared to current wireless senser, based on the wireless senser of the LORA communication technologys, power consumption is more
Distance that is low, can transmitting is farther, and antijamming capability further improves.It can pass through between 6 and two novel sensors
Switched wireless data.
Specific embodiment of the utility model does not form the limitation to the utility model, every phase using the utility model
It is within the protection scope of the present utility model like structure and variation.
Claims (5)
1. a kind of underground coal mine wireless gas sensor based on LORA, it is characterised in that：It is examined including power module (1), gas
Survey module (2), MCU control circuit (3), LORA communication modules (4), power module (1) the connection gas management module (2),
MCU control circuit (3) and LORA communication modules (4) are powered for it；The output of MCU control circuit (3) and gas management module (2)
Signal end communication connects；LORA communication modules (4) are connected by spi bus with the MCU control circuit (3)；Further include with
The connected alarm module (5) of MCU control circuit (3).
2. a kind of underground coal mine wireless gas sensor based on LORA as described in claim 1, it is characterised in that：Described
Power module (1) include lithium battery power supply (11), externally fed circuit (12) and toggle switch (13), lithium battery power supply (11) and
Externally fed circuit (12) is connected with toggle switch (13).
3. a kind of underground coal mine wireless gas sensor based on LORA as described in claim 1, it is characterised in that：Described
Multiple interfaces are provided in MCU control circuit (3), the spi bus is connected to the LORA communication modules (4) through multiple interfaces
Module.
4. a kind of underground coal mine wireless gas sensor based on LORA as described in claim 1, it is characterised in that：Described
Alarm module (5) is specially audible-visual annunciator.
5. a kind of underground coal mine wireless gas sensor based on LORA as described in claim 1, it is characterised in that：Described
LORA communication modules (4), including LORA chips, LORA chips use SX1278 radio frequency chips, and MCU passes through SPI interface and LORA
Chip communication, LORA chips are responsible for realizing is transferred to next wireless senser by the gas density that gas management module detects
Or LORA base stations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721464678.0U CN207423913U (en) | 2017-11-06 | 2017-11-06 | A kind of underground coal mine wireless gas sensor based on LORA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721464678.0U CN207423913U (en) | 2017-11-06 | 2017-11-06 | A kind of underground coal mine wireless gas sensor based on LORA |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207423913U true CN207423913U (en) | 2018-05-29 |
Family
ID=62307522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721464678.0U Expired - Fee Related CN207423913U (en) | 2017-11-06 | 2017-11-06 | A kind of underground coal mine wireless gas sensor based on LORA |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207423913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109151749A (en) * | 2018-09-20 | 2019-01-04 | 广州市冠基信息科技有限公司 | A method of the covering of GPRS, CDMA, 4G signal is realized by Lora wireless technology |
| CN111311897A (en) * | 2020-03-26 | 2020-06-19 | 四川信息职业技术学院 | Mine monitoring device based on wireless Lora |
-
2017
- 2017-11-06 CN CN201721464678.0U patent/CN207423913U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109151749A (en) * | 2018-09-20 | 2019-01-04 | 广州市冠基信息科技有限公司 | A method of the covering of GPRS, CDMA, 4G signal is realized by Lora wireless technology |
| CN111311897A (en) * | 2020-03-26 | 2020-06-19 | 四川信息职业技术学院 | Mine monitoring device based on wireless Lora |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100533081C (en) | Switch cabinet contact temperature monitoring and alarming system | |
| CN201546759U (en) | ZigBee technology-based underground safety-monitoring system for coal mine | |
| CN201314243Y (en) | Gas content detection wireless transmitting and receiving device based on radio frequency technique | |
| CN101762333B (en) | High-voltage power line wireless temperature acquisition system | |
| CN103364685A (en) | Current temperature on-line fault indicator and method for judging fault | |
| CN207423913U (en) | A kind of underground coal mine wireless gas sensor based on LORA | |
| CN201051018Y (en) | Switch case contact temperature monitoring and alarming system | |
| CN102109842B (en) | Intelligent mine-used gas safety information monitoring device and method | |
| CN111350546A (en) | Coal mine gas monitoring system | |
| CN205333781U (en) | Adopt compass positioning system's multi -functional built on stilts type fault indicator | |
| CN103532242A (en) | Mine power supply monitoring system | |
| CN101917211A (en) | Mine downhole intelligent wireless monitoring and positioning system base station | |
| CN206833216U (en) | Embedded subsurface environment monitoring terminal based on technology of Internet of things | |
| CN110363953A (en) | A kind of low-consumption wireless smoke alarm unit | |
| CN203630251U (en) | Electric power line fault indicator | |
| CN105336127A (en) | Overload alarm system for electric power voltage detection | |
| CN201518012U (en) | Master-slave mode wireless gas sensor system | |
| CN203798940U (en) | Wireless real-time fault monitoring system | |
| CN208141572U (en) | A kind of factory's fuel gas detection alarm system based on distributed network | |
| CN205581252U (en) | Power system fault indicator | |
| CN207198596U (en) | Merge the T BOX intelligent networks connection terminal installation of CORS location technologies | |
| CN210376303U (en) | Hydrogen sulfide real-time monitoring system suitable for drilling site | |
| CN201820342U (en) | Electric fire-monitoring detector capable of transmitting alarm signals wirelessly in long distance | |
| CN207847697U (en) | A kind of coal mine communication system | |
| CN206035481U (en) | Water pressure monitoring system in pit drills in distributing type colliery based on zigBee |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20201106 |