CN102367743B - Mining wireless frequency-mixing multidata monitoring system - Google Patents
Mining wireless frequency-mixing multidata monitoring system Download PDFInfo
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- CN102367743B CN102367743B CN201110324677.7A CN201110324677A CN102367743B CN 102367743 B CN102367743 B CN 102367743B CN 201110324677 A CN201110324677 A CN 201110324677A CN 102367743 B CN102367743 B CN 102367743B
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Abstract
The invention discloses a mining wireless frequency-mixing multidata monitoring system, which comprises a ground surface part and an underground part; the ground surface part comprises a monitoring hose, a wireless receiver, a monitor and an alarm; the underground part comprises a wireless portable multidata acquisition instrument, an environment parameter sensor, a vital sign parameter sensor, a wireless relay, a video acquisition device and the like; the wireless portable multidata acquisition instrument is adaptively connected with the environment parameter sensor and the vital sign parameter sensor to form a front-mounted acquisition group; and acquired underground environment information and vital sign information of rescue workers are transmitted to the monitoring host of the ground surface part through the wireless relay and the wireless receiver so as to carry out concentrated analysis and processing. The mining wireless frequency-mixing multidata monitoring system is simple and feasible, lightweight and easy to carry, can be carried underground by the rescue workers, is capable of rapidly establishing a wireless ad hoc network in a short time and transmitting the underground environment data, image data and vital sign data of the rescue workers to the ground command center and realizes safety monitoring to underground environment and personnel.
Description
Technical field
The present invention relates to the technical field of Mine Monitoring, relate in particular to a kind of mining wireless frequency-mixing multidata monitoring system.
Background technology
The Safety of Coal Mine Production form of current China is very severe.Along with the continuous extension of mining depth, the coal seam gas-bearing capacity in each colliery is in rising trend, part low gaseous mine extends to High gas area, causes thus the contradiction of mine high-yield and high-efficiency and high gas emission amount more and more outstanding, and gas accident becomes the major accident that affects Safety of Coal Mine Production.
In the mine that contains the damps such as methane, safety problem is the most important thing, in mine, circumstance complication is changeable, need to detect multiple environment, at present, environment supervision instrument majority in mine can only be single a certain ambient parameter of monitoring, can not monitor various environmental parameters, and transmit data by the mode of cable, the put area of monitoring instrument is very restricted, and these monitoring instruments can not be monitored rescue personnel's vital sign parameter; Cause potential danger to the work of safety of coal mines and production management and rescue, can not comprehensively analyze and science judgment subsurface environment, to guarantee carrying out smoothly of coalmine rescue work.
Summary of the invention
The object of the present invention is to provide a kind of mining wireless frequency-mixing multidata monitoring system, for the mine that contains the damps such as methane, by to the crucial Workplace ambient parameter in down-hole, as methane concentration, carbonomonoxide concentration, gas concentration lwevel and well temperature, and rescue personnel's vital sign information, as shell temperature, heart rate, respiratory rate, speed, acceleration and body posture are monitored, to subsurface environment is comprehensively analyzed and science judgment, guarantee carrying out smoothly of coalmine rescue work.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of mining wireless frequency-mixing multidata monitoring system, comprises above ground portion and down-hole part; Above ground portion comprises: monitoring host computer, wireless receiver, monitor and alarm; Down-hole part comprises: the many data collecting instruments of wireless portable, environment parameter sensing device, vital sign parameter sensor, wireless repeater, video acquisition device, voice device; The many data collecting instruments of described wireless portable are as the elementary cell of down-hole information collection and treatment, connect environment parameter sensors and vital sign parameter sensor composition front-collection colony, the described monitoring host computer that the subsurface environment of collection and rescue personnel's vital sign information are transferred to above ground portion by described wireless repeater and described wireless receiver carries out centralized Analysis processing, to complete the safety monitoring to subsurface environment and rescue personnel.
Further, adopt special monitoring of software to command and sweeping the various monitored data that communication is collected, and compare with the standard figures of inserting in advance internal memory, extract wherein more alert monitored data and carry out analyzing and processing, and by the alarm alarm of sounding.
Further, between described wireless receiver and described wireless repeater and the transmission means adopting between wireless repeater comprise that 802.11b WLAN connects.
Further, the transmission means adopting between described wireless repeater and described many data collecting instruments of wireless portable is that frequency hopping FSHH is connected.
Further, the transmission means adopting between the many data collecting instruments of described wireless portable and described environment parameter sensing device is RS485, and the transmission means adopting between the many data collecting instruments of described wireless portable and described vital sign parameter sensor is bluetooth.
Further, the ambient parameter under described environment parameter sensing device production wells, comprising: methane concentration, carbonomonoxide concentration, gas concentration lwevel and well temperature.
Further, described vital sign parameter sensor gathers rescue personnel's vital sign parameter, comprising: shell temperature, heart rate, respiratory rate and body posture.
Further, described video acquisition device and described wireless repeater are set up wireless connections, and the image information of video acquisition device Real-time Collection down-hole, passes to above ground portion by wireless relay, to monitor the real situation in down-hole.
Further, described voice device and described wireless repeater are set up wireless connections, and voice device adopts mode and the above ground portion of duplex voice communication to converse in real time.
Further, ground and down-hole are by the wireless communication mode between described wireless repeater and described wireless receiver, and the communication and the order that complete above ground portion and subsurface equipment and personnel send.
A kind of mining wireless frequency-mixing multidata monitoring system disclosed by the invention, be simple and easy to use, light portable, can be carried under mine by rescue personnel, rapid wireless self-networking in short time, the environmental data of down-hole, image information, speech data, rescue personnel's vital sign data are reached to ground command center, realize the safety monitoring to subsurface environment and personnel in real time.
Brief description of the drawings
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is mining wireless frequency-mixing multidata monitoring system theory diagram of the present invention;
Fig. 2 is mining wireless frequency-mixing multidata monitoring system work schematic diagram of the present invention.
Detailed description of the invention
Fig. 1 is mining wireless frequency-mixing multidata monitoring system theory diagram of the present invention.As shown in Figure 1, this device is made up of two parts, above ground portion and down-hole part, down-hole part comprises signal detection collecting part and relay apparatus, above ground portion comprises radio receiver and signal handling equipment, wherein, signal detection collecting part can be carried down-hole by rescue personnel, comprises advance data harvester, video acquisition device and voice device; Signal handling equipment comprises monitoring host computer, monitor and alarm.Relay apparatus and radio receiver are realized the signal all standing to whole mine district.Signal detection collecting part detects, gathers, changes parameter, signal after conversion is transferred to signal handling equipment by relay apparatus and radio receiver, signal handling equipment is to the received signal after analyzing and processing, and the communication and the order that complete above ground portion and subsurface equipment and personnel send.
Fig. 2 is mining wireless frequency-mixing multidata monitoring system work schematic diagram of the present invention, as shown in Figure 2:
Mining wireless frequency-mixing multidata monitoring system comprises: above ground portion and down-hole part;
Above ground portion, is made up of monitoring host computer, wireless receiver, printer, monitor and alarm.
Down-hole part, is made up of the many data collecting instruments of wireless portable, environment parameter sensing device, vital sign parameter sensor, wireless repeater, video acquisition device and voice device.
The many data collecting instruments of wireless portable of down-hole part are as the elementary cell of down-hole information collection and treatment, it connects environment parameter sensors and vital sign parameter sensor composition front-collection device, by the information exchange of collection cross wireless repeater, wireless receiver is transferred to above ground portion and focuses on, and jointly completes the safety monitoring to subsurface environment and rescue personnel.
The environment parameter sensing device of down-hole part and vital sign parameter sensor are converted into electrical signal transfer to data acquisition instrument by the various signals that need monitoring, monitoring, complete information collection function by data collecting instrument, wherein, ambient parameter under environment parameter sensing device production wells, as, methane concentration, carbonomonoxide concentration, gas concentration lwevel and well temperature; Vital sign parameter sensor gathers rescue personnel's vital sign parameter, as, shell temperature, heart rate, respiratory rate, speed, acceleration and body posture; Video acquisition device, voice device and wireless repeater are set up wireless connections, the image information of video acquisition device Real-time Collection down-hole, and voice device adopts mode and the ground of duplex voice communication to converse in real time.
Above ground portion is the information processing centre of whole monitoring system, monitoring host computer comprises special monitoring management software, the various monitored data that communication is collected are commanded and swept to its special monitoring management software, and compare with the standard figures of inserting in advance internal memory, extract wherein that more alert monitored data is carried out analyzing and processing and by the alarm alarm of sounding; Software can be according to user's instructions for use, and the free time interval is carried out data storage, regularly generated data library file and some journal files; By complete, the accurate monitoring result of the external equipment such as monitor, printer output.
Ground and down-hole are by the wireless communication mode between wireless repeater and wireless receiver, and the communication and the order that complete above ground portion and subsurface equipment and personnel send.
Wherein, the transmission means adopting between wireless receiver and wireless repeater and between repeater is that 802.11b WLAN connects, the transmission means adopting between repeater and Acquisition Instrument is that frequency hopping FSHH is connected, the transmission means adopting between Acquisition Instrument and environment parameter sensing device is RS-485 communication modes, and the transmission means adopting between Acquisition Instrument and vital sign parameter sensor is bluetooth.
Wherein, FHSS, frequency hopping (Frequency-Hopping Spread Spectrum) is the in the situation that of synchronous and while, accept two ends and transmit signal with the narrow frequency carrier wave of specific pattern, for a unspecific recipient, the runout signal that FHSS produces, for it, is only impulsive noise.The signal that FHSS launches can be evaded according to special design the non-repetitive channel of noise or One-to-Many, and these frequency hopping signals must be observed FCC(US Federal Communication Committee) requirement, using 75 above frequency hopping signals and frequency hopping to the maximum time intervals (Dwell Time) of next frequency is 400ms.
Frequency hopping (frequency hopping) is a kind of spread spectrum that utilizes carrier wave saltus step to realize video stretching, its method is a wide-band to be divided into several frequency intervals (call channel, or frequency gap), control transmitter the carrier frequency at a certain specific residence time signal transmitted by a pseudo-random sequence.
Synchronize saltus step when the local oscillated signal frequency of receiver and the frequency of receiver input signal by same rule, so, after frequency conversion, will obtain a fixing intermediate-freuqncy signal and original frequency hopping be removed, this process claims to separate jumps or goes jumping.
Frequency hopping can be divided into slow frequency hopping and fast frequency hopping.Slow frequency hopping refers to that frequency hopping rate is lower than information bit rate, i.e. every jumping can be transmitted continuous several information bit.Fast frequency hopping refers to that frequency hopping rate is higher than information bit rate, and an information bit needs multi-hop to transmit.Frequency hopping also can be divided into single channel frequency hopping and binary channels frequency hopping.
Frequency hopping communications principle: transmitting terminal is under clock control, and pseudo-code generator produces pseudo-random sequence and goes controlled frequency to be blended into generation frequency-hopping carrier series, is called frequency hopping pattern.The pre-modulation filter of receiving terminal is the narrow band filter (passband allows desired signal to pass through) of a kind of centre frequency synchronous saltus step with signal frequency hopping sample, object is to increase the time selectivity of receiver, reduces the choking phenomenon that strong jamming may cause receiver.
If the frequency-hopping carrier sequence receiving is consistent with the frequency hop sequences pattern that this locality produces, after mixing, can obtains a fixing intermediate-freuqncy signal, then obtain output through demodulation.If external frequency hopping pattern and local pattern are inconsistent, can not get a fixing intermediate-freuqncy signal, some noises and can not get useful output just after demodulation.Therefore time synchronized is the key technology of frequency hopping communications.
Modulation system can be selected according to the feature of Frequency Hopping Signal.In frequency-hopping system, should not adopt phase place is required to strict modulation system.Because in frequency-hopping communication system, the local carrier of receiver will accomplish that it is very difficult in phase place, keeping relevant with the carrier wave of extraneous signal.Therefore, should use noncoherent detection mode.Frequency synthesizer is the important component part of frequency-hopping communication system.The performance of frequency synthesizer will restrict frequency hopping rate.That frequency hopping rate is fast, spurious level is low and power consumption is little to the requirement of frequency synthesizer.When frequency synthesizer carries out frequency hopping, generally have 2 stages: one is transitional period (transient state time), one is demurrage (the stable state time).It is short that the requirement transitional period tries one's best, to realize high-speed transitions.
The present embodiment specifically can performance assessment criteria:
Monitoring main frame
1) portable computer, rated operational voltage AC220V, power-supply fluctuation scope-10%～+ 10%
2) CPU:Intel Pentium IV processor, more than dominant frequency 2.0GHz
3) internal memory: 512Mb
4) hard disk: 80G above (two hard disk)
5) video card: standard VGA, 16 RGBs
6) monitor resolution: 1024*768
Wireless receiver
1) type of explosion proof construc tion: mining intrinsic safety type;
2) explosion-proof mark: [Exib] I;
3) rated operational voltage DC12V, power-supply fluctuation scope ± 10%, cell stream time is more than 2 hours;
4) and computer communication:
A) transmission means: Ethernet interface, RJ45
B) maximum transmission distance is 50m
C) peak transfer rate: 100Mbps
5) with mining wireless repeater KJ30-ZW communication
A) transmission means: 802.11b
B) maximum transmission distance is 500m
C) peak transfer rate: 54Mbps
Mining wireless repeater
Maximum repeater progression: 12 grades
1) type of explosion proof construc tion: mining intrinsic safety type;
2) explosion-proof mark: Exib I;
3) rated operational voltage DC12V, power-supply fluctuation scope ± 10%, cell stream time is more than 2 hours;
4) repeater and repeater, between receiver
A) transmission means: 802.11b
B) peak transfer rate: 54Mbps;
C) maximum transmission distance: 500m;
5) transmission means between repeater and Acquisition Instrument
A) transmission means: FHSS
B) peak transfer rate: 800Kbps;
C) maximum transmission distance: 5000m;
The many data collecting instruments of wireless portable
The Acquisition Instrument quantity of system access is 16
1) type of explosion proof construc tion: mining intrinsic safety type;
2) explosion-proof mark: Exib I;
3) rated operational voltage DC12V, power-supply fluctuation scope ± 10%, cell stream time is more than 2 hours;
4) between Acquisition Instrument and repeater
A) transmission means: FHSS
B) peak transfer rate: 800Kbps;
C) maximum transmission distance: 5000m;
5) Acquisition Instrument and environment parameter sensing device
A) transmission means: RS485
B) peak transfer rate: 57.6Kbps;
C) maximum transmission distance: 10m;
6) Acquisition Instrument and vital sign parameter sensor
A) transmission means: bluetooth
B) peak transfer rate: 1Mbps;
C) maximum transmission distance: 3m;
A kind of mining wireless frequency-mixing multidata monitoring system disclosed by the invention, comprises above ground portion and down-hole part; It is characterized in that, above ground portion comprises: monitoring host computer, wireless receiver, monitor and alarm; Down-hole part comprises: the many data collecting instruments of wireless portable, environment parameter sensing device, vital sign parameter sensor, wireless repeater, video acquisition device, voice device; The many data collecting instruments of described wireless portable are as the elementary cell of down-hole information collection and treatment, connect environment parameter sensors and vital sign parameter sensor composition front-collection colony, the described monitoring host computer that the subsurface environment of collection and rescue personnel's vital sign information are transferred to above ground portion by described wireless repeater and described wireless receiver carries out centralized Analysis processing, to complete the safety monitoring to subsurface environment and rescue personnel.This system is simple and easy to use, light portable, can be carried under mine by rescue personnel, rapid wireless self-networking in short time, by the environmental data of down-hole, image information, rescue personnel's vital sign data reaches ground command center, realizes the safety monitoring to subsurface environment and personnel in real time.
Although should be noted that the present invention will be described with reference to detailed description of the invention above, this does not mean it is limitation of the present invention, and protection scope of the present invention is limited by claims instead of detailed description of the invention.
Claims (7)
1. a mining wireless frequency-mixing multidata monitoring system, comprises above ground portion and down-hole part; It is characterized in that, above ground portion comprises: monitoring host computer, wireless receiver, monitor and alarm; Down-hole part comprises: the many data collecting instruments of wireless portable, environment parameter sensing device, vital sign parameter sensor, wireless repeater, video acquisition device, voice device; The many data collecting instruments of described wireless portable are as the elementary cell of down-hole information collection and treatment, connect environment parameter sensors and vital sign parameter sensor composition front-collection colony, the described monitoring host computer that the subsurface environment of collection and rescue personnel's vital sign information are transferred to above ground portion by described wireless repeater and described wireless receiver carries out centralized Analysis processing, to complete the safety monitoring to subsurface environment and rescue personnel;
Wherein, monitoring host computer adopts special monitoring management software to command and sweep the various monitored data that communication is collected, and compare with the standard figures of inserting in advance internal memory, extract wherein that more alert monitored data is carried out analyzing and processing and by the alarm alarm of sounding, can also be according to user's instructions for use, the free time interval is carried out data storage, regularly generated data library file and journal file;
The environment parameter sensing device of down-hole part and vital sign parameter sensor are converted into electrical signal transfer to the many data collecting instruments of wireless portable by the various signals that need monitoring, monitoring, complete information collection function by the many data collecting instruments of wireless portable;
Ambient parameter under described environment parameter sensing device production wells, comprising: methane concentration, carbonomonoxide concentration, gas concentration lwevel and well temperature;
Described vital sign parameter sensor gathers rescue personnel's vital sign parameter, comprising: shell temperature, heart rate, respiratory rate, speed, acceleration and body posture.
2. mining wireless frequency-mixing multidata monitoring system according to claim 1, is characterized in that, between described wireless receiver and described wireless repeater and the transmission means adopting between wireless repeater comprise 802.11b WLAN connect.
3. mining wireless frequency-mixing multidata monitoring system according to claim 1 and 2, is characterized in that, the transmission means adopting between described wireless repeater and the many data collecting instruments of described wireless portable is that frequency hopping FSHH is connected.
4. mining wireless frequency-mixing multidata monitoring system according to claim 1 and 2, it is characterized in that, the transmission means adopting between the many data collecting instruments of described wireless portable and described environment parameter sensing device is RS485, and the transmission means adopting between the many data collecting instruments of described wireless portable and described vital sign parameter sensor is bluetooth.
5. mining wireless frequency-mixing multidata monitoring system according to claim 1 and 2, it is characterized in that, described video acquisition device and described wireless repeater are set up wireless connections, the image information of video acquisition device Real-time Collection down-hole, pass to above ground portion by wireless relay, to monitor the real situation in down-hole.
6. mining wireless frequency-mixing multidata monitoring system according to claim 1 and 2, it is characterized in that, described voice device and described wireless repeater are set up wireless connections, and voice device adopts mode and the above ground portion of duplex voice communication to converse in real time.
7. mining wireless frequency-mixing multidata monitoring system according to claim 1 and 2, it is characterized in that, ground and down-hole are by the wireless communication mode between described wireless repeater and described wireless receiver, and the communication and the order that complete above ground portion and subsurface equipment and personnel send.
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| CN102367743B true CN102367743B (en) | 2014-08-20 |
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| CN108757042A (en) * | 2018-06-29 | 2018-11-06 | 中国矿业大学 | It is a kind of based on wireless portable emergency rescue system |
| CN111271126A (en) * | 2018-12-04 | 2020-06-12 | 深圳市物联微电子有限公司 | Mine gas monitoring alarm system |
| CN111487293A (en) * | 2020-04-27 | 2020-08-04 | 中煤能源研究院有限责任公司 | Portable detector of mining gaseous multi-parameter |
| CN111797139A (en) * | 2020-06-30 | 2020-10-20 | 广州中石科技有限公司 | Restricted space operation safety supervision platform and supervision method |
| CN111768602A (en) * | 2020-06-30 | 2020-10-13 | 广州中石科技有限公司 | Intelligent safety supervision system and supervision method for operation in limited space |
| CN112867036A (en) * | 2021-02-07 | 2021-05-28 | 吉林省科学技术信息研究所 | Ad-HOC Ad HOC network system and method |
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| CN201339487Y (en) * | 2009-01-20 | 2009-11-04 | 北京工商大学 | Real-time monitoring system for coal mine underground environmental safety based on wireless sensor network |
| CN101557656A (en) * | 2009-03-16 | 2009-10-14 | 中国矿业大学 | Intrinsically safe wireless ad hoc network convergence device for mine |
| CN101881183A (en) * | 2010-06-18 | 2010-11-10 | 昆山诺金传感技术有限公司 | Underground monitoring network system based on ZigBee network nodes |
| CN201982135U (en) * | 2011-01-10 | 2011-09-21 | 西安森兰科贸有限责任公司 | Wireless multimedia command system in mine rescue |
| CN102137511A (en) * | 2011-03-15 | 2011-07-27 | 马永 | Wireless sensor network system for underground mines and application thereof |
| CN202300532U (en) * | 2011-10-21 | 2012-07-04 | 煤炭科学研究总院 | Mining wireless frequency mixing multi-data monitoring device |
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