CN108104874A - A kind of gas monitor system based on ZigBee technology - Google Patents
A kind of gas monitor system based on ZigBee technology Download PDFInfo
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- CN108104874A CN108104874A CN201611054373.2A CN201611054373A CN108104874A CN 108104874 A CN108104874 A CN 108104874A CN 201611054373 A CN201611054373 A CN 201611054373A CN 108104874 A CN108104874 A CN 108104874A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
A kind of gas monitor system based on ZigBee technology, suitable for field of gas detection.Gas monitor system is made of monitoring node circuit, data reception node, power-supplying circuit, serial communication modular circuit.The system utilizes sensor network, it is combined with coal-mine gas monitoring system comprising, it employs wirelessly, both the trouble for having avoided laying-out also reduces cost, the system also have low-power consumption, be capable of providing at low cost, quick, efficient data transfer platform, have the advantages that it is convenient, be easy to correct, with good real-time, stability, the security of colliery detecting system is improved.
Description
Technical field
The present invention relates to a kind of gas monitor system based on ZigBee technology, suitable for field of gas detection.
Background technology
The main energy sources in China are exactly coal at this stage, it accounts for important ground in terms of the social and economic development in China
Position, becomes a part indispensable in people's production and living.Shown according to related data, China's coal-mine production industry there is
The problem of great, according to related data statistics, to the end of the year 2006, in possessing 2.6 ten thousand mines of production licence in the whole nation, almost
All it is gaseous mine and more than half still belongs to highly gassy mine.There are more than ten families in 3420 collieries to register on the books in Shaanxi Province
It is state-owned backbone Large Coal Enterprises.Since our production technique is limited by each side factor, such as:Underground mining condition,
The limitation etc. of miner's technical conditions, natural geological conditions, technology and equipment condition, the security of colliery industry, reliability are always
Not high, accident of mine disaster is also often to occur.Wherein, the harm of gas is most serious.
Since the natural environment that coal is formed is complicated, pit mining condition is also multifarious, along with outside there are floods,
The natural calamities such as fire, narrow and small exploitation space and very poor lighting condition all bring very big be stranded to coal mining work
It is difficult.Current most of Coal Mine Monitoring System is all using wired mode, i.e., using optical cable, electric power cable or signal cable etc.,
There is big inconvenience, there are following defects for wired mode.
(1) installation maintenance cost is expensive, difficult wiring.Having established line monitoring system needs substantial amounts of optical cable, cable,
And the price of these cables is also sufficiently expensive, while it is also very time-consuming that the extremely complex underground of environment, which is laid with these cables,
Laborious.
(2) monitoring range is limited.Monitoring system should monitor each area of underground, but due to the landform of underground
Environment is sufficiently complex, the region that cannot be also placed in the presence of many cables under mine so that the range shorter of wired monitoring, very
Difficulty spreads all over the every nook and cranny of mine, can not implement comprehensive monitoring to entire mine, stay many security risks.
(3) circuit dependence is strong.Cable network cannot carry out self-regeneration, if the somewhere line in wired monitoring network
Road is damaged, it is likely that makes entire monitoring system all cisco unity malfunctions.When gas accident occurs for underground, these cables
It will be destroyed and cannot be worked, search-and-rescue work and state of affairs detection can not be provided and a little helped.
The characteristics of comprehensive Colliery Security System, it has been found that at present, as underground mining depth is continuously increased, information peace
It is impossible to meet require for total system.So employing new technology improves the present situation of current detecting system, at present
More popular wireless sensor network, is combined with coal-mine gas monitoring system comprising, using wirelessly, can be good at solving
There is the problem of line monitoring system cann't be solved, be of great significance.
The content of the invention
The present invention provides a kind of gas monitor system based on ZigBee technology, using sensor network, with colliery
Gas monitoring system is combined, and is employed wirelessly, and the trouble for both having avoided laying-out also reduces cost, the system
Also have low-power consumption, be capable of providing at low cost, quick, efficient data transfer platform, have it is convenient, be easy to correction it is excellent
Point has good real-time, stability, improves the security of colliery detecting system.
The technical solution adopted in the present invention is：
Based on the gas monitor system of ZigBee technology by monitoring node circuit, data reception node, power-supplying circuit,
Serial communication modular circuit forms.
The monitoring node is placed on mine different position, for gas density in monitoring mine and humiture situation,
Information will be collected, data receiving terminal on ground is wirelessly transmitted to by ZigBee-network, hardware is mainly by sensor die
Block, micro controller module, wireless radio frequency modules, antenna-matching circuit and power supply module composition.Sensor assembly is by gas
Sensor, digital temperature-humidity sensor and signal conditioning circuit composition, what it is because of acquisition is digital signal, can be directly sent to micro-control
On the I/O mouths of device processed.CC2430 integrates microcontroller and radio frequency chip on a single die, has low in energy consumption and anti-
The characteristics of interference performance is strong, while radiofrequency signal is exported using differential mode.Antenna is largely encouraged using single ended mode, therefore
Antenna-matching circuit must be configured between the radio frequency delivery outlet and antenna of CC2430.
The data reception node is placed near PC machine, is mainly used for collecting what each monitoring node in mine was sent
Data are sent to the environmental aspect that each position in mine is checked in PC machine by RS232 serial ports.Receiving node is by less radio-frequency mould
Block, micro controller module, serial interface circuit, human-computer exchange interface circuit, LED state indicating circuit, jtag interface circuit, expansion
Open up interface circuit and power supply module composition.Serial port circuit mainly realizes that the information of receiving node and monitoring of software in PC machine is handed over
It changes, human-computer exchange interface circuit mainly uses the selection for completing various functions, and LED state indicating circuit is mainly used for representing node
Working condition, jtag interface circuit are mainly used for using when downloading software program or later software upgrading, and expansion interface circuit is used
It is used in the later upgrading of system hardware and extension.
The power-supplying circuit degree of stability is the very important part of whole system.Power supply uses external power supply and electricity
Pond power supply two ways, to adapt to the application demand of different occasions.Node module all using 3.3V and 1.8V power supply modes, uses
Two section dry cells can power, but gateway node master controller frequency is high, and power consumption is also bigger, in order to stablize gateway node
Reliable work, usually all uses external power power supply mode.Power circuit is using AMS1117-3.3 V and AMS1117-
1.8V chips carry out power voltage step down and voltage stabilizing.AMS1117 is the positive integrated regulator of one piece of low voltage difference three-polar output, is had
The characteristics of static working current is small, and input and output pressure difference is small, load regulation and small voltage regulation factor, and have overheat, overcurrent
Protection.
The serial communication modular circuit microprocessor chip is connected by RS232 serial ports with PC machine, microprocessor chip
Supply voltage be 3.3 V, and the RS232 interface of PC machine is using negative logic standard, and -3 V~15V represents logical one, this with
The Transistor-Transistor Logic level of CC2430 is incompatible, public using MAXIM herein therefore, it is necessary to carry out level conversion between CC2430 and PC machine
The MAX3232 chips of department complete level conversion function.MAX3232 use proprietary low voltage difference transmitter output stage, have 3~
The wide operating voltage of 5.5V, peripheral components only need four small capacitances, include two-way driver and two-way receiver, the biography of data
Defeated rate is up to 250kb/s, in addition, the chip also has electrostatic protection function.
The beneficial effects of the invention are as follows：It using sensor network, is combined, employs wireless with coal-mine gas monitoring system comprising
Mode, the trouble for both having avoided laying-out also reduces cost, which also has low-power consumption, be capable of providing it is at low cost,
Quick, efficient data transfer platform, have the advantages that it is convenient, be easy to correction, have good real-time, stability,
Improve the security of colliery detecting system.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the monitoring node circuit of the present invention.
Fig. 2 is the data reception node of the present invention.
Fig. 3 is the power-supplying circuit of the present invention.
Fig. 4 is the serial communication circuit of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, monitoring node is placed on mine different position, for gas density in monitoring mine and humiture shape
Condition will collect information and be wirelessly transmitted to data receiving terminal on ground by ZigBee-network, and hardware is mainly by sensor
Module, micro controller module, wireless radio frequency modules, antenna-matching circuit and power supply module composition.Sensor assembly by watt
This sensor, digital temperature-humidity sensor and signal conditioning circuit composition, what it is because of acquisition is digital signal, can be directly sent to micro-
On the I/O mouths of controller.CC2430 by microcontroller and radio frequency chip all it is integrated on a single die, have it is low in energy consumption and
The characteristics of strong antijamming capability, while radiofrequency signal is exported using differential mode.Antenna is largely encouraged using single ended mode, because
This must configure antenna-matching circuit between the radio frequency delivery outlet and antenna of CC2430.
Such as Fig. 2, data reception node is placed near PC machine, is mainly used for collecting each monitoring node in mine and is sent
The data come, the environmental aspect that each position in mine is checked in PC machine is sent to by RS232 serial ports.Receiving node is by less radio-frequency
Module, micro controller module, serial interface circuit, human-computer exchange interface circuit, LED state indicating circuit, jtag interface circuit,
Expansion interface circuit and power supply module composition.Serial port circuit mainly realizes the information of receiving node and monitoring of software in PC machine
It exchanges, human-computer exchange interface circuit mainly uses the selection for completing various functions, and LED state indicating circuit is mainly used for representing node
Working condition, jtag interface circuit is mainly used for downloading software program or when later software upgrading uses, expansion interface circuit
It is used for the later upgrading of system hardware and extension.
Such as Fig. 3, serial communication modular circuit microprocessor chip is connected by RS232 serial ports with PC machine, microprocessor core
The supply voltage of piece is 3.3 V, and the RS232 interface of PC machine is using negative logic standard, and -3 V~15V represents logical one, this with
The Transistor-Transistor Logic level of CC2430 is incompatible, public using MAXIM herein therefore, it is necessary to carry out level conversion between CC2430 and PC machine
The MAX3232 chips of department complete level conversion function.MAX3232 use proprietary low voltage difference transmitter output stage, have 3~
The wide operating voltage of 5.5V, peripheral components only need four small capacitances, include two-way driver and two-way receiver, the biography of data
Defeated rate is up to 250kb/s, in addition, the chip also has electrostatic protection function.
Such as Fig. 4, serial communication modular circuit microprocessor chip is connected by RS232 serial ports with PC machine, microprocessor core
The supply voltage of piece is 3.3 V, and the RS232 interface of PC machine is using negative logic standard, and -3 V~15V represents logical one, this with
The Transistor-Transistor Logic level of CC2430 is incompatible, public using MAXIM herein therefore, it is necessary to carry out level conversion between CC2430 and PC machine
The MAX3232 chips of department complete level conversion function.MAX3232 use proprietary low voltage difference transmitter output stage, have 3~
The wide operating voltage of 5.5V, peripheral components only need four small capacitances, include two-way driver and two-way receiver, the biography of data
Defeated rate is up to 250kb/s, in addition, the chip also has electrostatic protection function.
Claims (8)
1. a kind of gas monitor system based on ZigBee technology, it is characterized in that：The ore deposit based on ZigBee technology
Well gas monitoring system is made of monitoring node circuit, data reception node, power-supplying circuit, serial communication modular circuit.
2. the gas monitor system according to claim 1 based on ZigBee technology, it is characterized in that：The monitoring section
Point is placed on mine different position, for gas density in monitoring mine and humiture situation, will collect information and passes through
ZigBee-network is wirelessly transmitted to data receiving terminal on ground, and hardware is mainly by sensor assembly, micro controller module, nothing
Line radio-frequency module, antenna-matching circuit and power supply module composition.
3. a kind of gas monitor system based on ZigBee technology according to claim 1, it is characterized in that：Described
Sensor assembly is made of firedamp sensor, digital temperature-humidity sensor and signal conditioning circuit, and what it is because of acquisition is digital letter
Number, it can be directly sent on the I/O mouths of microcontroller.
4. a kind of gas monitor system based on ZigBee technology according to claim 1, it is characterized in that：Described
CC2430 integrates microcontroller and radio frequency chip on a single die, has low in energy consumption and strong antijamming capability spy
Point, while radiofrequency signal is exported using differential mode.
5. a kind of gas monitor system based on ZigBee technology according to claim 1, it is characterized in that：The number
It is placed on according to receiving node near PC machine, is mainly used for collecting the data that each monitoring node is sent in mine, passes through RS232
Serial ports is sent to the environmental aspect that each position in mine is checked in PC machine.
6. a kind of gas monitor system based on ZigBee technology according to claim 1, it is characterized in that：It is described to connect
It receives node and electricity is indicated by wireless radio frequency modules, micro controller module, serial interface circuit, human-computer exchange interface circuit, LED state
Road, jtag interface circuit, expansion interface circuit and power supply module composition.
7. a kind of gas monitor system based on ZigBee technology according to claim 1, it is characterized in that：The electricity
Source uses external power supply and battery powered two ways, to adapt to the application demand of different occasions.
8. a kind of gas monitor system based on ZigBee technology according to claim 1, it is characterized in that：The string
Port communications modular circuit microprocessor chip is connected by RS232 serial ports with PC machine, and the supply voltage of microprocessor chip is 3.3
V, and the RS232 interface of PC machine uses negative logic standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054373.2A CN108104874A (en) | 2016-11-25 | 2016-11-25 | A kind of gas monitor system based on ZigBee technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054373.2A CN108104874A (en) | 2016-11-25 | 2016-11-25 | A kind of gas monitor system based on ZigBee technology |
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| Publication Number | Publication Date |
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| CN108104874A true CN108104874A (en) | 2018-06-01 |
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| CN201611054373.2A Pending CN108104874A (en) | 2016-11-25 | 2016-11-25 | A kind of gas monitor system based on ZigBee technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954634A (en) * | 2019-11-26 | 2021-06-11 | 李猛 | Chemical industry enterprise toxic gas leakage monitoring device based on WSN |
-
2016
- 2016-11-25 CN CN201611054373.2A patent/CN108104874A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954634A (en) * | 2019-11-26 | 2021-06-11 | 李猛 | Chemical industry enterprise toxic gas leakage monitoring device based on WSN |
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Application publication date: 20180601 |