CN201392249Y - Wireless ad-hoc network temperature measuring device for mine - Google Patents
Wireless ad-hoc network temperature measuring device for mine Download PDFInfo
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- CN201392249Y CN201392249Y CN200920032011U CN200920032011U CN201392249Y CN 201392249 Y CN201392249 Y CN 201392249Y CN 200920032011 U CN200920032011 U CN 200920032011U CN 200920032011 U CN200920032011 U CN 200920032011U CN 201392249 Y CN201392249 Y CN 201392249Y
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- nanosecond
- temperature
- temperature transmitter
- thermopair
- temperature measuring
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Abstract
The utility model is a wireless ad-hoc network temperature measuring device for mine which has a wider range of forecast and can collect real-time temperature information; the wireless ad-hoc network temperature measuring device for mine comprises a plurality of Zigbee wireless transmission modules, temperature transmitters, thermal resistances or thermocouples in the temperature measuring drill hole which is inserted into the monitored ground, wherein, each thermal resistance or thermocouple is respectively connected with the input end of the temperature transmitter, and the output end of each temperature transmitter is respectively connected with the Zigbee wireless transmission module.
Description
Technical field
The utility model belongs to mining fire monitoring technology, and particularly a kind of mining wireless self-networking temperature measuring equipment is mainly used in temperature and variation tendency thereof in the surface drilling of place, easy spontaneous combustion zone, monitoring coalfield.
Background technology
At present, when the burning degree of judging spontaneous combustion of coal and scope, temperature is the most direct, index the most accurately, it is subjected to the influence of external factor less, as long as determine the temperature and the distribution thereof of somewhere coal, just can analyze the spontaneous combustion degree and the scope of given coal, in addition, hygrometry both can be used for the spontaneous combustion of coal forecast, also can be used for fire source probing.The surface drilling hygrometry mainly is the temperature measuring at coal or country rock, it is to measure temperature at the sensor that the Huo Qu top that spontaneous combustion easily takes place utilizes instrument detection heat flux or utilization to be arranged in the thermometric boring, determines the position of spontaneous combustion fire district burning things which may cause a fire disaster with the temperature retrieval method according to the temperature field that measures.This method is mainly used in that the burning things which may cause a fire disaster depth of burial is shallow, the burning things which may cause a fire disaster temperature is high or the fire district of the long period of having burnt.Existing borehole temperature mode is respectively thermometric information in each boring to be carried out record, perhaps the temperature probe in each boring is wired to instrument, so its installation, maintenance workload are big, particularly probe lead wire very easily destroys, be subjected to technology and economic restriction in actual applications, unsuitable large tracts of land is visited fire and is adopted, and can only implement in small range.
Summary of the invention
Problem to be solved in the utility model is: the big and mining wireless self-networking temperature measuring equipment of collecting temperature information in real time of prediction scope.
The technical scheme that addresses the above problem is: the mining wireless self-networking temperature measuring equipment that is provided, comprise a plurality of Zigbee wireless transport modules, temperature transmitter, be inserted in thermal resistance or thermopair in the thermometric boring on required monitoring ground, wherein each thermal resistance or thermopair are connected with the input end of a temperature transmitter respectively, the output terminal of each temperature transmitter is connected with a Zigbee wireless transport module respectively, and power supply is connected between temperature transmitter and the Zigbee wireless transport module.
Temperature variation signal input temp transmitter in thermal resistance or thermopair will be holed, temperature transmitter is handled the linear constant current signal of one of back output and dut temperature to the Zigbee wireless transport module, the Zigbee wireless transport module is sent to supervisory control comuter in the mode of MANET in real time with the data message of collecting, fire alarm and location are in time carried out in the monitored area, thereby make reasonable decision-making and take to instruct accordingly measure, guarantee that the colliery can produce safely and efficiently.
It is that thermal resistance or thermopair directly are connected with the input end of temperature transmitter that the utility model further improves, and is encapsulated in the protective case with temperature transmitter, and they are combined together.
Preferred Pt100 platinum resistance of above-mentioned thermal resistance or thermopair or thermopair, the preferred SBWZ type of temperature transmitter temperature transmitter.
Compared with prior art, the utility model has adopted the formed MANET of Zigbee wireless transport module to carry out the wireless transmission of temperature data, have and be convenient to lay, exempt from maintenance, advantage that workload is little, can reach 1～2 year normal working hours, can on-line continuous monitor variation of temperature trend in each boring of ground of spontaneous fire zone, coalfield in real time, temperature anomaly is changed early warning in time and location.The formed monitoring network of the utility model possesses self-organization, self-healing function, can adapt to the requirement of field, colliery complex environment to network reliability.In addition, the utility model combines temperature transmitter and thermometric thermal resistance or thermopair together, has eliminated to connect the error that lead produced in the conventional temp measuring method, and is not only simple in structure, be convenient to installation and maintenance, and its earthquake-resistant moisture-proof and heat resistance are better.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model total system.
Fig. 2 is the structural representation of a detecting unit of the utility model.
Fig. 3 is the quick cut-off protection circuit of power supply of the present utility model
Embodiment
As shown in Figure 1: on ground, spontaneous fire zone, the coalfield of needs monitoring, bore some thermometer holes according to on-site actual situations by setting spacing, to be inserted in the hole by the temperature measuring unit 1 that platinum resistance thermometer sensor, (or thermopair) and temperature transmitter are formed, the degree of depth of inserting thermometer hole is generally 3～5 meters.The output terminal of each temperature measuring unit 1 connects a Zigbee wireless transport module 2, and these Zigbee wireless transport modules 2 are just formed a wireless network voluntarily.The coal seam variation of temperature can influence the temperature variation in the thermometer hole, when the thermometer hole temperature variation, the corresponding variation can take place in the resistance of the platinum resistance thermometer sensor, of temperature measuring unit (or thermoelectrical potential of thermopair), platinum resistance output resistance signal (or thermoelectrical potential signal of thermopair output) is delivered to the temperature transmitter module, after filtering, conversion amplification, compensate the constant current signal of one of output and the linear 4～20mA of dut temperature behind the V/I change-over circuit again by the nonlinear relationship of linear circuit to temperature and resistance (or electromotive force).This constant current signal is sent into Zigbee wireless transport module 2, the Zigbee wireless transport module is by its inner microprocessor processes, the constant current signal of 4～20mA is converted to corresponding temperature value, the temperature information of gathering periodically is sent to gateway 3 in real time by the form of wireless self-networking, send into supervisory control comuter by gateway 3 by the RS232 serial line interface again, supervisory control comuter also can output to the LAN (Local Area Network) of Surveillance center, the information of collecting is analyzed, thereby fire alarm and location are in time carried out in the monitored area.
A temperature measuring unit of the present utility model as shown in Figure 2, Pt100 platinum resistance thermometer sensor, 5 directly is connected on the input end of SBWZ type temperature transmitter 6, the output terminal of temperature transmitter 6 is connected with Zigbee wireless transport module 2, temperature transmitter 6 is the outputs of two lines, power supply 7 is connected between temperature transmitter 6 and the Zigbee wireless transport module 2, and the effect of resistance R is the constant current signal that makes a 4～20mA of temperature transmitter 6 outputs.Platinum resistance thermometer sensor, 5 is encapsulated in the high temperature resistant protective case with temperature transmitter 6, and power supply 7 also is encapsulated in the protecting sheathing with Zigbee wireless transport module 2.
Referring to Fig. 3; in order to strengthen the security of power supply; above-mentioned power supply 7 can adopt lithium ion battery group or nickel-cadmium battery group; be provided with quick cut-off protection circuit at the electric battery output terminal; the switching tube G1 that triode G2 that this quick cut-off protection circuit is opened by nanosecond and nanosecond are turn-offed constitutes; wherein the gate pole of the switching tube G1 that turn-offs by resistance and nanosecond of the collector of the triode G2 that opens of nanosecond links to each other; the emitter of the triode that nanosecond is opened links to each other with the source electrode of the switching tube that nanosecond is turn-offed, and the base stage of the triode that nanosecond is opened links to each other by the drain electrode of the switching tube that resistance and nanosecond are turn-offed.Number among the figure: R1, R2, R3 and R4 are respectively resistance, and C is an electric capacity.Above-mentioned triode plays a part the monitoring battery discharge current, in case this electric current reaches the threshold voltage that the ohmically pressure drop that links to each other with its gate pole surpasses this triode at this switching tube, this triode can be open-minded in nanosecond, collector potential uprises, make switching tube turn-off in the time in nanosecond, reduce instantaneous short circuit sparking energy, thereby guaranteed the security of power supply.
Claims (4)
1, a kind of mining wireless self-networking temperature measuring equipment, it is characterized in that comprising a plurality of Zigbee wireless transport modules, temperature transmitter, be inserted in thermal resistance or thermopair in the thermometric boring on required monitoring ground, wherein each thermal resistance or thermopair are connected with the input end of a temperature transmitter respectively, and the output terminal of each temperature transmitter is connected with a Zigbee wireless transport module respectively.
2, wireless self-networking temperature measuring equipment according to claim 1 is characterized in that said thermal resistance or thermopair directly are connected with the input end of temperature transmitter, and is encapsulated in the protective case with temperature transmitter.
3, wireless self-networking temperature measuring equipment according to claim 1 is characterized in that said thermal resistance or thermopair are Pt100 platinum resistance or thermopair, and temperature transmitter is a SBWZ type temperature transmitter.
4; wireless self-networking temperature measuring equipment according to claim 1; it is characterized in that power supply (7) is connected between temperature transmitter and the Zigbee wireless transport module; power supply (7) adopts lithium ion battery group or nickel-cadmium battery group; be provided with quick cut-off protection circuit at the electric battery output terminal; the switching tube (G1) that triode (G2) that this quick cut-off protection circuit is opened by nanosecond and nanosecond are turn-offed constitutes; wherein the gate pole of the switching tube that turn-offs by resistance and nanosecond of the collector of the triode opened of nanosecond links to each other; the emitter of the triode that nanosecond is opened links to each other with the source electrode of the switching tube that nanosecond is turn-offed, and the base stage of the triode that nanosecond is opened links to each other by the drain electrode of the switching tube that resistance and nanosecond are turn-offed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032011U CN201392249Y (en) | 2009-02-25 | 2009-02-25 | Wireless ad-hoc network temperature measuring device for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032011U CN201392249Y (en) | 2009-02-25 | 2009-02-25 | Wireless ad-hoc network temperature measuring device for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392249Y true CN201392249Y (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920032011U Expired - Fee Related CN201392249Y (en) | 2009-02-25 | 2009-02-25 | Wireless ad-hoc network temperature measuring device for mine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768079A (en) * | 2012-07-27 | 2012-11-07 | 苏州迪芬德物联网科技有限公司 | Wireless temperature measurement system for hot environment |
| CN105070015A (en) * | 2015-08-10 | 2015-11-18 | 中国矿业大学 | Wireless sensor device and method used for coal field fire zone parameter dynamic monitoring |
| CN106567739A (en) * | 2016-10-28 | 2017-04-19 | 中煤科工集团西安研究院有限公司 | Mine fire abnormal area detection method based on directional drilling technique |
| CN109631995A (en) * | 2018-12-18 | 2019-04-16 | 西安科技大学 | One kind monitoring system based on Embedded subsurface environment |
-
2009
- 2009-02-25 CN CN200920032011U patent/CN201392249Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768079A (en) * | 2012-07-27 | 2012-11-07 | 苏州迪芬德物联网科技有限公司 | Wireless temperature measurement system for hot environment |
| CN105070015A (en) * | 2015-08-10 | 2015-11-18 | 中国矿业大学 | Wireless sensor device and method used for coal field fire zone parameter dynamic monitoring |
| CN106567739A (en) * | 2016-10-28 | 2017-04-19 | 中煤科工集团西安研究院有限公司 | Mine fire abnormal area detection method based on directional drilling technique |
| CN109631995A (en) * | 2018-12-18 | 2019-04-16 | 西安科技大学 | One kind monitoring system based on Embedded subsurface environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20150225 |
|
| EXPY | Termination of patent right or utility model |