CN101787899A - Primary-secondary type gas sensor - Google Patents
Primary-secondary type gas sensor Download PDFInfo
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- CN101787899A CN101787899A CN201010116691A CN201010116691A CN101787899A CN 101787899 A CN101787899 A CN 101787899A CN 201010116691 A CN201010116691 A CN 201010116691A CN 201010116691 A CN201010116691 A CN 201010116691A CN 101787899 A CN101787899 A CN 101787899A
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Abstract
The invention discloses a primary-secondary type gas sensor, comprising a plurality of secondary machine gas sensors and a primary machine gas sensor. The secondary machine gas sensors are used for detecting gas concentration of secondary machines; the primary machine gas sensor is used for detecting gas concentration of a primary machine and uploads a gas concentration signal to a monitoring sub station by a connecting line and receives a gas concentration signal downloaded from the monitoring sub station, wherein, the plurality of the secondary machine gas sensors communicate with the primary machine gas sensor in a wireless way; the gas concentration signal detected by the secondary machine gas sensors is transmitted to the primary machine gas sensors in a wireless way, and then is uploaded to the monitoring sub station by the primary machine gas sensor through a signaling line. In the invention, multi-point simultaneous and continuous monitoring can be carried out in a certain space range, and real-time transmission can be realized.
Description
Technical field
The present invention relates to a kind of firedamp sensor, the primary-secondary type gas sensor that use particularly a kind of down-hole again.
Background technology
Prior art can realize certain fixed point position, down-hole is carried out measuring in continuous 24 hours, but can't carry out omnibearing continuous measurement to certain space.And the Gas Distribution in the particular space scope of down-hole, the influence that is subjected to geographical configuration is uneven.For the gas monitor in driving (moving) process, because inconvenient cable connects, existing method is to adopt portable (or machine-carried type) gas monitor to monitor.And its data do not realize " upload function ", and information can not be shared.Before or after disaster took place, because the data disappearance, its monitored data lost practical significance to the prevention and the rescue of disaster.
In addition, existing methane transducer is all the local environment methane concentration information of gathering with regard to its groundwork process, by the conversion and the treatment circuit of this machine, form the methane concentration information that quantizes.The display device that has by sensor itself carries out this locality demonstration; Treatment circuit by this machine is compared the collection value with the alarming value of setting, transfinite and then reported to the police; Simultaneously, unidirectional uploading.And, require the down-hole terminal device to have two-way information transmission and human-computer interaction function based on the monitoring system developing direction of full ore deposit information transparencyization.For methane transducer, i.e. local methane concentration can be gathered and show to requirement, carries out local overload alarm, can utilize remote communicating function again, the methane concentration and the warning message in the relevant place of output far-end.When the disaster incident took place other place, down-hole, the National Officer can in time obtain location information and disaster degree information that disaster takes place by being arranged at the demonstration information of local sensor.The blindness of avoiding escaping and saving oneself.
Summary of the invention
The purpose of this invention is to provide a kind of can multiple spot simultaneously, continuous monitoring and can realize the primary-secondary type gas sensor of real-time Transmission.
Primary-secondary type gas sensor of the present invention comprises:
A plurality of handset firedamp sensors are used for detecting respectively the handset gas density;
The machine tool firedamp sensor is used to detect the machine tool gas density, and uploads the gas density signal and receive the gas density signal that passes under the Monitor Sub-Station of Less to Monitor Sub-Station of Less by connecting line;
Wherein, a plurality of handset firedamp sensors and machine tool firedamp sensor carry out radio communication, and the gas density signal wireless that the handset firedamp sensor is detected sends to the machine tool firedamp sensor, is uploaded to Monitor Sub-Station of Less by the machine tool firedamp sensor via holding wire again.
Wherein, each handset firedamp sensor comprises: first methane transducer, be used to detect the handset methane concentration, and be converted into handset methane concentration signal; First collecting unit is used to gather the methane concentration signal by the output of first methane transducer; First processor is used to handle the methane concentration signal from first collecting unit, obtains handset methane concentration Value Data, contains methane concentration packet and methane concentration alarm signal that handset identifies; The first methane concentration display unit is used to the handset methane concentration Value Data that shows that first processor is exported; The first methane concentration alarm is used for the methane concentration alarm signal according to first processor output, sends sound and light alarm; First wireless communication unit is used for to the methane concentration packet that contain handset sign of the wireless transmission of machine tool firedamp sensor by first processor output.
Wherein, first processor is by carrying out calculation process to the methane concentration signal from first collecting unit, obtain the methane concentration Value Data, methane concentration Value Data and the methane concentration alarm threshold value data that preset are compared, obtain the methane concentration alarm signal, and, obtain the described methane concentration packet that handset identifies that contains with processings of packing of methane concentration Value Data and the handset that presets sign.
Wherein, the machine tool firedamp sensor comprises: second methane transducer is used for detecting the methane concentration of machine tool environment, and converts thereof into the methane concentration signal; Second collecting unit is used to gather the methane concentration signal by the output of second methane transducer; Second processor, be used to handle methane concentration signal from second collecting unit, obtain machine tool methane concentration Value Data, contain methane concentration packet and methane concentration alarm signal that machine tool identifies, and be used to handle methane concentration packet from Monitor Sub-Station of Less, obtain having the far-end methane concentration Value Data of sign; The bidirectional data communication unit is used for the methane concentration packet of processor output is sent to Monitor Sub-Station of Less, and will sends to processor from the methane concentration packet of Monitor Sub-Station of Less; The second methane concentration display unit is used for the machine tool methane concentration Value Data and the far-end methane concentration Value Data that show that respectively second processor is exported; The second methane concentration alarm is used for the methane concentration alarm signal according to the output of second processor, sends sound and light alarm; Second wireless communication unit, be used to receive the handset methane concentration packet that contains the handset sign by handset firedamp sensor wireless transmission, via showing handset methane concentration and sign at the second methane concentration display unit after second processor processing, and the described handset methane concentration packet that contains the handset sign is uploaded to Monitor Sub-Station of Less via the bidirectional data communication unit.
Wherein, second processor is by carrying out calculation process to the methane concentration signal from second collecting unit, obtain the methane concentration Value Data, methane concentration Value Data and the methane concentration alarm threshold value data that preset are compared, obtain the methane concentration alarm signal, and, obtain containing the methane concentration packet that machine tool identifies with processings of packing of methane concentration Value Data and the machine tool that presets sign.
Wherein, second processor is by to the processing of unpacking from the methane concentration packet of Monitor Sub-Station of Less, obtain having sign as far-end methane concentration Value Data.
Wherein, the second methane concentration display unit comprises: driver module is used to drive machine tool methane concentration Value Data signal and far-end methane concentration Value Data signal; Machine tool methane concentration display module is used to show the machine tool methane concentration Value Data signal that is driven by driver module; Outside methane concentration display module, be used to show by driver module drive from the methane concentration Value Data signal of Monitor Sub-Station of Less with from the methane concentration Value Data signal of handset firedamp sensor.
Wherein, the machine tool firedamp sensor also comprises the unit is set, and is used to preset methane concentration alarm threshold value and machine tool sign.
Wherein, the machine tool firedamp sensor also comprises unidirectional analogue communication unit, its frequency that is used to receive the output of second processor unidirectional analog signal that is directly proportional with methane concentration.
Wherein, second processor has the methane concentration signal that will amplify and carries out analog-to-digital analog-digital converter.
Technique effect of the present invention is:
1, can at implement in certain spatial dimension multiple spot simultaneously, continuous monitoring, and can realize real-time Transmission;
2, improve the reliability of the data of gas monitor, reduce the monitoring blind spot;
3, communication is adopted in the transmission of handset and machine tool, and the monitoring point can be moved in restricted portion, can well satisfy the demand of emphasis and comprehensive monitoring.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the schematic diagram of primary-secondary type gas sensor of the present invention;
Fig. 2 is the schematic diagram of handset firedamp sensor of the present invention;
Fig. 3 is the schematic diagram of machine tool firedamp sensor first embodiment of the present invention;
Fig. 4 is the schematic diagram of the mechanism of methane concentration display unit shown in Figure 3;
Fig. 5 is the schematic diagram of machine tool firedamp sensor second embodiment of the present invention;
Fig. 6 is the circuit diagram of handset firedamp sensor shown in Figure 2;
Fig. 7 is the circuit diagram of machine tool firedamp sensor second embodiment shown in Figure 5.
The specific embodiment
Fig. 1 has shown the structure of primary-secondary type gas sensor of the present invention, comprising: a plurality of handset firedamp sensors 1 are used for detecting respectively the handset gas density; A machine tool firedamp sensor 2 is used to detect the machine tool gas density, and uploads the gas density signal and receive the gas density signal that passes for 3 times from Monitor Sub-Station of Less to Monitor Sub-Station of Less 3 by connecting line; Wherein, a plurality of handset firedamp sensors 1 carry out radio communication with machine tool firedamp sensor 2, the gas density signal wireless that handset firedamp sensor 1 is detected sends to machine tool firedamp sensor 1, is uploaded to Monitor Sub-Station of Less 3 by machine tool firedamp sensor 2 via holding wire again.
Machine tool firedamp sensor 2 of the present invention links to each other with Monitor Sub-Station of Less 3 by holding wire, has functions such as data acquisition, processing, demonstration, warning, wireless data transceiving, transmission; Handset firedamp sensor 1 is except that the function that has collection, processing, reports to the police, and also with machine tool firedamp sensor 2 wireless transmission in the 50m scope, its image data can show at machine tool firedamp sensor 2, and the machine tool firedamp sensor is reported to the police and shown the some position when transfiniting.In addition, the data that collect of handset firedamp sensor 1 can be uploaded to ground host via Monitor Sub-Station of Less 3 by machine tool firedamp sensor 1.
The gas monitor that handset firedamp sensor of the present invention 1 is carried out in the tunneling process can send machine tool firedamp sensor 2 to the gas density in driving place is wireless in real time, thus realized multiple spot simultaneously, continuous monitoring and can real-time Transmission.
Fig. 2 has shown the structure of handset firedamp sensor 1 of the present invention, comprising: methane transducer 11, be used to detect the methane concentration that the handset methane concentration promptly tunnels the place, and be converted into handset methane concentration signal; Collecting unit 12 is used to gather the methane concentration signal by methane transducer 11 outputs; Processor 13 is used to handle the methane concentration signal from collecting unit 12, obtains handset methane concentration Value Data, contains methane concentration packet and methane concentration alarm signal that handset identifies; Methane concentration display unit 15 is used for the handset methane concentration Value Data that video-stream processor 13 is exported; Methane concentration alarm 14 is used for the methane concentration alarm signal according to processor 13 outputs, sends sound and light alarm; Wireless communication unit 16 is used for to the methane concentration packet that contain handset sign of machine tool firedamp sensor 2 wireless transmission by processor 13 outputs.
Processor 13 is by carrying out calculation process to the methane concentration signal from collecting unit 12, obtain the methane concentration Value Data, methane concentration Value Data and the methane concentration alarm threshold value data that preset are compared, obtain the methane concentration alarm signal, and with processings of packing of methane concentration Value Data and the handset that presets sign, what obtain contains the methane concentration packet that handset identifies.
Fig. 3 has shown machine tool firedamp sensor structure of the present invention, and machine tool firedamp sensor 2 comprises as shown in Figure 3:
Fig. 4 has shown the concrete structure of the methane concentration display unit 25 of machine tool firedamp sensor, comprising: driver module 251 is used to drive the methane concentration Value Data signal of machine tool methane concentration Value Data signal and far-end and handset; Machine tool methane concentration display module 253 is used to show the machine tool methane concentration Value Data signal that is driven by driver module 251; And outside methane concentration display module 252, be used to show by driver module 251 drive from the methane concentration Value Data signal of Monitor Sub-Station of Less 3 with from the methane concentration Value Data signal of handset firedamp sensor 1.
Fig. 5 has shown second embodiment of machine tool firedamp sensor of the present invention, and the difference of it and first embodiment only is to have increased unit 28 and unidirectional analogue communication unit 29 be set.
Its frequency that unidirectional analogue communication unit 29 is used for receiving processor 23 output unidirectional analog signal that is directly proportional with methane concentration, this unidirectional analog signal also can be given ground host via the Monitor Sub-Station of Less branch.
Fig. 6 has shown the physical circuit figure of handset firedamp sensor 1 of the present invention.Methane transducer 11 is a catalytic combustion type methane sensing element, comprises RH, two elements of RB black and white, and their same R5, R6, W1 form electric bridge, the signal of telecommunication that the A of electric bridge, the output of B two ends change with extraneous concentration of methane gas.After the amplifying circuit that centralized procurement unit 12 is made up of elements such as IC3, the signal of telecommunication are amplified by collecting unit 12 and handle, be transferred to the inner A/D Acquisition Circuit of microprocessor IC4 (being processor 13), form data signal.Through the processing of microprocessor, form the digital information (namely for methane concentration value data) of methane concentration.Be transferred to machine tool firedamp sensor 2 via wireless receiving and dispatching radio-frequency module RF_M and PCB printed antenna as wireless communication unit 16.Simultaneously, methane concentration information is shown that by the digital display module S1 of methane concentration display unit 15 wherein IC6 is a driver module.When methane concentration is higher than setting value, the exportable control signal of microprocessor, through the on-off circuit of forming by VT2 etc., the sound light alarming circuit namely for methane concentration alarm 14 that control is made up of LED light emitting diode VL1, electric magnetic buzzer BUZ1, generation sound and light alarm signal.Power circuit is made up of IC1, IC2 etc.Wherein by IC2 produce+the 3V power supply supplies with sensing element, IC1 produces+the 5V power supply supplies with other circuit of this instrument.By the back-up source that battery pack BT1 and isolating diode VD2 form, can when no alternating current, keep the work of this instrument.
Fig. 7 has shown the circuit of machine tool firedamp sensor of the present invention, methane transducer 21 constitutes electric bridge by black, the white same R5 of element RH/RB, R6 and the W1 of catalytic combustion type methane sensing element MJC4, the signal of telecommunication that the A of electric bridge, the output of B two ends change with extraneous concentration of methane gas.Through amplification by the amplifying circuit of forming as the elements such as IC3 of collecting unit 22, be transferred to the inner A/D Acquisition Circuit of microprocessor IC4 (processor 23), form data signal.Through the calculation process of microprocessor, form the digital information (namely for methane concentration value data) of methane concentration.Concentration information can carry out this locality by the digital display module of the S1 of machine tool methane concentration display unit 253 and show that wherein IC6 is the driver module 251 of machine tool.Component frequency type communication interface circuits such as VT3 are unidirectional analogue communication unit 29, are used to export the frequency signal that is directly proportional with concentration, can be uploaded to equipment such as substation; The RS485 digital telecommunication circuit that is made of IC7 is bidirectional data communication unit 27, the mode of concentration information with digital communication can be sent to equipment such as substation.When methane concentration surpasses setting value, can pass through sound light alarming circuit (methane concentration alarm 24) the output sound and light alarm signal that IC8, VL1, VL2 etc. form.Radio-frequency module, PCB printed antenna are formed wireless communication unit 26, communicate with handset, and the monitor signal of handset is sent to microprocessor.By processor to the image data of handset handle, demonstration and overload alarm, digital display module S2 (being outside methane concentration display module 252) is used to circulate and shows the monitor value of each handset, when the monitor value of certain handset transfinites, carry out sound and light alarm by machine tool.The monitoring information of handset can pass through the RS485 communication interface, transfers to equipment such as substation.Composition such as SFH1, IC5 remote-control receiving circuit (unit 28 promptly is set) with the microcontroller circuit cooperating, is used for being provided with by remote controller operations such as alarm threshold, adjustment sensor.IC1, IC2 etc. form power supply and holding circuit, and+3V is the sensing element power supply, and+5V provides the power supply supply for other all unit of sensor.
Although above the present invention is had been described in detail, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all should be understood to fall into protection scope of the present invention.
Claims (10)
1. primary-secondary type gas sensor comprises:
A plurality of handset firedamp sensors (1) are used for detecting respectively the handset gas density;
Machine tool firedamp sensor (2) is used to detect the machine tool gas density, and uploads the gas density signal and receive the gas density signal that passes down from Monitor Sub-Station of Less (3) to Monitor Sub-Station of Less (3) by connecting line;
Wherein, described a plurality of handset firedamp sensors (1) carry out radio communication with machine tool firedamp sensor (2), the gas density signal wireless that handset firedamp sensor (1) is detected sends to machine tool firedamp sensor (2), is uploaded to Monitor Sub-Station of Less (3) by machine tool firedamp sensor (2) via holding wire again.
2. primary-secondary type gas sensor according to claim 1, wherein each described handset firedamp sensor comprises:
First methane transducer (11) is used to detect the handset methane concentration, is converted into handset methane concentration signal;
First collecting unit (12) is used for gathering the methane concentration signal by first methane transducer (11) output;
First processor (13) is used for handling the methane concentration signal from first collecting unit (12), obtains handset methane concentration Value Data, contains methane concentration packet and methane concentration alarm signal that handset identifies;
The first methane concentration display unit (15) is used to the handset methane concentration Value Data that shows that first processor (13) is exported;
The first methane concentration alarm (14) is used for the methane concentration alarm signal according to first processor (13) output, sends sound and light alarm; And
First wireless communication unit (16) is used for to the methane concentration packet that contain handset sign of the wireless transmission of described machine tool firedamp sensor (2) by described first processor (13) output.
3. primary-secondary type gas sensor according to claim 2, wherein said first processor (13) is by carrying out calculation process to the methane concentration signal from first collecting unit (12), obtain the methane concentration Value Data, described methane concentration Value Data and the methane concentration alarm threshold value data that preset are compared, obtain described methane concentration alarm signal, and, obtain the described methane concentration packet that handset identifies that contains with processings of packing of described methane concentration Value Data and the handset that presets sign.
4. according to claim 2 or 3 described primary-secondary type gas sensors, wherein said machine tool firedamp sensor comprises:
Second methane transducer (21) is used for detecting the methane concentration of machine tool environment, and converts thereof into the methane concentration signal;
Second collecting unit (22) is used for gathering the methane concentration signal by second methane transducer (21) output;
Second processor (23), be used for handling methane concentration signal from second collecting unit (22), obtain machine tool methane concentration Value Data, contain methane concentration packet and methane concentration alarm signal that machine tool identifies, and be used to handle methane concentration packet from Monitor Sub-Station of Less, obtain having the far-end methane concentration Value Data of sign;
Bidirectional data communication unit (27) is used for the methane concentration packet of processor (23) output is sent to Monitor Sub-Station of Less, and will sends to processor (23) from the methane concentration packet of Monitor Sub-Station of Less;
The second methane concentration display unit (25) is used for the machine tool methane concentration Value Data and the far-end methane concentration Value Data that show that respectively second processor (23) is exported;
The second methane concentration alarm (24) is used for the methane concentration alarm signal according to second processor (23) output, sends sound and light alarm; And
Second wireless communication unit (26), be used for receiving the handset methane concentration packet that contains the handset sign by handset firedamp sensor (1) wireless transmission, handle the back via described second processor (23) and show handset methane concentration and sign, and the described handset methane concentration packet that contains the handset sign is uploaded to Monitor Sub-Station of Less (3) via bidirectional data communication unit (27) at the second methane concentration display unit (25).
5. primary-secondary type gas sensor according to claim 4, wherein said second processor (23) is by carrying out calculation process to the methane concentration signal from second collecting unit (22), obtain the methane concentration Value Data, described methane concentration Value Data and the methane concentration alarm threshold value data that preset are compared, obtain described methane concentration alarm signal, and, obtain the described methane concentration packet that machine tool identifies that contains with processings of packing of described methane concentration Value Data and the machine tool that presets sign.
6. according to claim 4 or 5 described primary-secondary type gas sensors, wherein said second processor (23) is by to the processing of unpacking from the methane concentration packet of Monitor Sub-Station of Less, obtain having sign as far-end methane concentration Value Data.
7. primary-secondary type gas sensor according to claim 4, the wherein said second methane concentration display unit (25) comprising:
Driver module (251) is used to drive described machine tool methane concentration Value Data signal and far-end methane concentration Value Data signal;
Machine tool methane concentration display module (253) is used to show the machine tool methane concentration Value Data signal that is driven by described driver module 251; And
Outside methane concentration display module (252), be used for showing by driver module (251) drive from the methane concentration Value Data signal of Monitor Sub-Station of Less (3) with from the methane concentration Value Data signal of handset firedamp sensor (1).
8. primary-secondary type gas sensor according to claim 4, wherein said machine tool firedamp sensor (2) also comprise unit (28) are set, and are used to preset described methane concentration alarm threshold value and machine tool sign.
9. primary-secondary type gas sensor according to claim 8, wherein said machine tool firedamp sensor (2) also comprises unidirectional analogue communication unit (29), its frequency that is used to receive second processor (23) output unidirectional analog signal that is directly proportional with methane concentration.
10. primary-secondary type gas sensor according to claim 4, wherein said second processor (23) have the methane concentration signal that will amplify and carry out analog-to-digital analog-digital converter.
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| CN201010116691A CN101787899A (en) | 2010-03-03 | 2010-03-03 | Primary-secondary type gas sensor |
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| CN201010116691A CN101787899A (en) | 2010-03-03 | 2010-03-03 | Primary-secondary type gas sensor |
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Cited By (1)
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| CN108167022A (en) * | 2017-12-25 | 2018-06-15 | 天地（常州）自动化股份有限公司 | A kind of gas monitoring and data comparison method based on coal mine safety monitoring system |
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Application publication date: 20100728 |