CN202166747U - Portable mountainous region wireless earthquake exploration system - Google Patents
Portable mountainous region wireless earthquake exploration system Download PDFInfo
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Abstract
The utility model discloses a portable mountainous region wireless earthquake exploration system, which comprises a host computer and a collector in wireless communication with the host computer, wherein the collector comprises a detector, a data collecting module, a main control module, a GPS module and a first wireless transmission module, and the host computer comprises a computer and a second wireless transmission module in bidirectional connection with the computer. The portable mountainous region wireless earthquake exploration system employs the host computer for realizing man-machine interaction and the starting and configuration of wireless network, makes a field collector form self-organizing network, and realizes data transmission; and the collector realizes the functions of data collection, data conversion, data storage and uploading. The portable mountainous region wireless earthquake exploration system is small in size and weight, is quite suitable for the geological exploration of complex mountainous regions, can save a lot of manpower and material resources, and can improve working efficiency.
Description
Technical field
The utility model relates to geophysical exploration technology, specifically is applied to the geologic prospecting of oil, gas, coal and other mineral resources, the portable mountain region wireless seismic survey system that can gather, store and transmit artificial or natural geological data.
Background technology
Seismograph be in the seismic prospecting with secondary reflection or with other vibroseis earthquake-wave-excitings, and write down the instrument of the vibration displacement that it causes on ground.Method of seismic exploration is still the main means at land and seafari oil and natural gas at present, simultaneously also be other mineral resources important method of exploration.And be widely used in research earth ' s internal structure, engineering exploration and detection, geological hazards prediction aspect.Phenomenons such as the seismic event that produces when controllable source will reflect when running into the stratum of different wave impedance, refraction; Receive, write down the data of elastic wave and convert high accuracy number sample streams through the surveying instrument of being installed on the ground this moment; Gather the back and use the computing machine analyzing and processing, thereby infer underground tectonic structure.
Demand according to complicated mountain region earthquake-capturing; Current seismic detector system bulky complex in vogue; Along with gathering increasing of road number; It is more and more heavier that cable can become, and it carries reasons such as inconvenience, laying difficulty in complex mountainous because of transportation greatly influenced operating efficiency, makes its collecting work be difficult to carry out.
Seismograph must have functions such as high-precision data acquisition, time synchronized, recording storage.
At present, the data transfer mode of seismograph employing mainly includes line transmission mode and no cable memory-type seismograph.Wired seismograph is to be sent instruction and transmitted data by wired system.Earth shock sensor (wave detector) reaches host computer system through multi-core cable wire (big line) with simulating signal.Because of existing in cable, analog voltage signal crosstalks each other between amplitude fading, road and problems such as atmospheric electricity and power frequency electrical interference; In addition, along with increasing of road number, big line can become very heavy so that ten be difficult to realize more gather the road number more, thereby in application, is restricted, and especially in the mountain area of complicacy, pay great amount of manpower and material resources.
No cable memory-type seismograph adopts the form of acquisition station to realize.Still adopt wired mode to give data acquisition between acquisition station and wave detector, collect the simulating signal and the storage of wave detector through acquisition station.After construction was accomplished, the data of acquisition station transferred to PC through wired or wireless mode and carry out Treatment Analysis.Though this seismograph has been broken away from the constraint of big line, the real-time of this mode is relatively poor, can't the monitoring of environmental quality, and quality that can't the Real Time Observation seismic event if the error that image data exists is bigger, needs the program of the sampling of earthquake once more comparatively complicated.
The utility model content
The technical matters that the utility model will solve provides that the little light weight of a kind of volume, dirigibility are good, accurate positioning, synchronization accuracy is high, transmission speed is fast, storage capacity is strong, low in energy consumption portable mountain region wireless seismic survey system; Data transmission and control in real time between host computer and the collector have been realized; Can improve the exploration quality, reduce the labour intensity of field work, be suitable for the exploration of the geological and mineral resources such as oil, coal, gas in complicated mountain region.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of portable mountain region wireless seismic survey system, it constitutes by host computer with the collector of said host computer wireless telecommunications;
Said collector comprises wave detector, data acquisition module, main control module, GPS module and first wireless transport module;
Said data acquisition module is made up of selftest module, filter network, analog switch, preposition amplification and A/D converter; The corresponding output end of said selftest module connects the respective input of wave detector, filter network, module switch and A/D converter respectively; The output terminal of wave detector connects A/D converter through filter network, analog switch and preposition amplification successively;
Said main control module comprise the ARM9 module, with two-way Flash that is connected of ARM9 module and SDRAM; Said ARM9 module is connected with A/D converter is two-way;
Said GPS module is connected with the ARM9 module is two-way respectively with first wireless transport module;
Said main control module also comprises the SD storage card, and said SD storage card is connected with the ARM9 module is two-way.
Said host computer comprises computing machine and second wireless transport module that is connected with said computer bidirectional.
Said collector also comprises networking interface and USB interface, and said networking interface is connected with the main control module is two-way respectively with USB interface.
Preferably, said wave detector adopts moving-coil geophone.
In the technique scheme, host computer is used for man-machine interaction, stored record and processing seismic data; Man-machine interaction comprises that real-time monitoring, the seismic waveshape of initiation parameter setting, system state show in real time, survey line is managed, log record is controlled and the playback management of seismic data; Collector is realized the function of collection, data-switching, data storage and the data upload of geological data.Host computer and collector are realized wireless telecommunications through first, second wireless transport module.Wireless transport module mainly is responsible for the startup and the configuration of network, sets up the network connection to being installed in open-air collector, forms self-organizing network; In first wireless transport module large-capacity memory card is set, the geological data of collection is stored in the notebook, also is kept in the said large-capacity memory card simultaneously, realizes data redundancy, in case the unnecessary loss that loss of data causes.Data in the storage card can be convenient for carrying simultaneously, have improved the convenience of data sharing.
The beneficial effect that adopts technique scheme to produce is: 1) complicated in the open air mountain region utilizes the stationary problem of the technology solution large tracts of land collector data acquisition that GPS combines with RTC, and the error of image data is very little; 2) each collector of the utility model all has the function of transmitting-receiving, directly realizes the wireless transmission of data with collector, and just each collector all possesses the function of route; Wireless transmission adopts the wireless transmission method with self-organization network function to realize; Do not have fixing router in the network, each node can move freely and optimize networking with any-mode, has realized the demand of wireless penetration; Make the seismic surveying system miniaturization, be easy to carry; 3) system bulk of the utility model is little, quality is little, is suitable for the geologic prospecting in complicated mountain region, can save lot of manpower and material resources, and can increase work efficiency.
Description of drawings
Fig. 1 is the hardware connection layout of the collector of the utility model.
Embodiment
Referring to Fig. 1, present embodiment constitutes by the host computer of realizing man-machine interaction, data processing and data transmit-receive function with the collector of the function of collection, data-switching, data storage and the data upload of the realization geological data of said host computer wireless telecommunications; Said host computer comprises computing machine and second wireless transport module that is connected with said computer bidirectional.
Said computing machine such as notebook are mainly used in man-machine interaction, stored record and processing seismic data.Man-machine interaction comprises that real-time monitoring, the seismic waveshape of initiation parameter setting, system state show in real time, survey line is managed, log record is controlled and the playback management of seismic data; These functions realize through application written software; The basic operation of said application software uses Vc++ to realize that the database that relates to is realized with MySQL.
Second wireless transport module adopts USB to be connected with notebook, and this module mainly is responsible for the startup and the configuration of network, sets up the network connection to being installed in open-air collector, forms self-organizing network; In second wireless transport module large-capacity memory card is set, the geological data of collection is stored in the notebook, also is kept in the said large-capacity memory card simultaneously, realizes data redundancy, in case the unnecessary loss that loss of data causes.Data in the said large-capacity memory card can be convenient for carrying, and have improved the convenience of data sharing.
Said collector comprises wave detector, data acquisition module, main control module, GPS module and first wireless transport module; Said data acquisition module is made up of selftest module, filter network, analog switch, preposition amplification and A/D converter; The corresponding output end of said selftest module connects the respective input of wave detector, filter network, module switch and A/D converter respectively; The output terminal of wave detector connects A/D converter through filter network, analog switch and preposition amplification successively;
Said main control module comprise the ARM9 module, with the two-way Flash that is connected of ARM9 module, SDRAM and SD storage card; Said ARM9 module is connected with A/D converter is two-way;
Said GPS module is connected with the ARM9 module is two-way respectively with first wireless transport module.
The model of said first wireless transport module and second wireless transport module all adopts the CC2430 chip.The size of this chip has only 7 * 7mm, and under reception and emission mode, current loss is lower than 27 mA or 25 mA respectively; Only the stream of 0.9 μ A consumes when park mode, outside interruption or RTC ability waken system; When standby mode, be less than the stream consumption of 0.6 μ A, outside interruption can waken system.Do not have fixing router by above-mentioned wireless network that constitutes, the node in the network can arbitrarily move and can be with the any-mode mutual communication.Can pass through to adopt the relay routing algorithm of optimizing to realize the quick communication of radio receiving transmitting module in remote, large-scale collector and the host computer; Each collector can be directly and upper machine communication during in direct connected region (promptly in the wireless receiving and dispatching signal cover) when collector; When collector is outside direct connected region, just need select the path to carry out the relay transmission through optimized Algorithm.
Said wave detector adopts moving-coil geophone.The major function of wave detector is to convert seismic events into electric signal.Adopt explosive or vibroseis earthquake-wave-exciting; Seismic event is propagated to the depths, stratum through the stratum of various structures; When running into the different interface of wave impedance, produce reflection wave, the earth shock that wave detector will cause changes electric signal into, is transferred to data acquisition module then.
Said data acquisition module is responsible for accomplishing the collection and the storage of geological data, and necessary test self-checking function is provided.The signal generator chip model of said selftest module is AD9850; Said filter network is the analog filtering network: realize the 50Hz trap with the UAF42 filtering chip; Constitute height with operational amplifier TL072, resistance, electric capacity and switch chip 4052 and cut wave filter and low-cut filter, height is cut the interference and the noise that can cut away 60Hz, 120Hz, 240Hz, four gears of 1000Hz; The low interference and the noise that can cut away 6Hz, 12Hz, 24Hz, four gears of 48Hz of cutting; What pre-amplification circuit was selected is the CS3301A amplifier; Analog switch uses chip 4052 to realize.A/D converter adopts 24 A/D conversion chip CS5371A; CS5371A is that CirrusLogic company aims at geophysical survey and the AD nest plate that designs, and its maximum dynamic range is 127dB215HzBW, and harmonic distortion is-118dB; The power consumption of each passage is merely 25mW; And the power consumption control function also is provided himself, and can get into low-power consumption mode at one's leisure, power consumption is reduced to every passage 1mW.The output signal of said wave detector is removed the noise in the signal through filter network, and through the preposition amplification of high precision instrument useful signal is amplified in the effective range of A/D converter.Analog switch is accomplished the setting of Acquisition Circuit duty, promptly normal the collection or the System self-test test mode.24 A/D converters are realized the analog to digital conversion of useful signal, and the Timer of ARM9 module is delivered in output.The self check submodule is realized the detection to environmental exact details, filter network and A/D converter function through the input standard signal, to guarantee the validity of each image data.
Said main control module adopts the operating system based on Windows CE.Wherein ARM9 module model is S3C2410AL-20, frequency of operation 203MHz.Its data storage cell is two sdram memorys, and model is HY57V561620BT-H; A slice NandFlash storage chip, model are U-K9F1208UDM-YC80; A slice Nor Flash memory chip, model are 29VL800; The SD card that capacity is 4G.
Said main control module respectively with said GPS module, first wireless transport module is two-way is connected; Wireless transport module adopts the mode of dynamic routing to realize the wireless transmission of data.Wireless transport module adopts the network equipment of supporting MANET.Self-organizing network does not have fixing route, and the node in the network can arbitrarily move and can communicate with one another with any-mode.Each node can both realize that the function of router searches the route that is maintained into another node in network.The utility model is realized collection and the wireless transmission of seismic event with the field acquisition device, promptly each collector all has the function of route.Each node can arbitrarily move and can optimize networking by any way realizes mutual communication.The fault of any node can not influence the operation of whole network, has very strong survivability and robustness.Said wireless network adopts the ZigBee technology of supporting self-organizing network.
The mode that combines with RTC through the GPS time service synchronously of system realizes.
Each collector is furnished with the GPS module; Collector self can be realized static self-align, and horizontal accuracy can reach centimetre-sized, has therefore replaced a lot of geologic survey work; Improved field construction efficient, and high-precision position information is provided for the latter earthquake data processing.In the present embodiment; GPS selects the IT03 OEM GPS of Fastrax company receiver module for use, and size little (22x23x2.7mm), super low-power consumption (< 95mW 2.7V), highly sensitive (156dBm (tracking)), accurate 1PPS time signal output can reach the precision of RMS20ns and cheap.In addition, collector is realized open-air geological data synchronous acquisition through the technology that GPS time service and high precision real-time clock RTC combine, and when GPS locatees successfully, utilizes GPS pulse per second (PPS) synchronous data collection; When the gps satellite signal losing lock, then the RTC timekeeping system through calibrating is obtained precise time label, synchronously the data acquisition of all collectors.
The utility model also comprises power module, and said power module is mainly shown by high-capacity lithium battery, power management chip, LCD and USB interface is formed, and mainly being provides suitable power supply and to the charging of battery to the collector each several part.Power management chip uses the DS2438 chip, and the DS2438 chip is accomplished the monitoring to the current various states of 5V battery, comprises the isoparametric monitoring of charge/discharge state, voltage, electric current, temperature, dump energy of current battery.The 5V battery is realized through low difference voltage regulator LM1117 to the conversion of system's required voltage (1.8V, 3.3V and 5V).
When adopting technique scheme, host computer is arranged in the exploration area at first in the open air.Host computer comprise notebook computer with one with its first wireless communication module that is connected with USB---wireless receiving and dispatching storer.The complete system for acquiring seismic data TT&C software of one cover is installed in host computer, is mainly realized that real-time monitoring, seismic waveshape to system state show in real time, the playback management of survey line management, log record control and seismic data etc.; Through software, realize power management and network equipment monitoring function simultaneously to host computer
Then, arrange collector.Arrange a plurality of collectors in the exploration area, adopt the wireless data transmission mode of self-organizing network between collector and the host computer.
Its operation mainly comprises:
1, survey line is arranged, owing to there is not heavy cable in the native system, overall weight alleviates greatly, and does not have the restriction of cable length, is fit to very much the Construction Arrangement in complicated mountain region.Consider to confirm to excite dose, excitation well depth equal excitation factor and receiving factors such as collector array mode and embedding mode; The position coordinates of collector can be confirmed with GPS.
2, System self-test is laid back starting switch opening power; System carries out self check and GPS location; Send self-detection result and coordinate information to host computer; Host computer sends instruction makes collector get into off-mode, and the shutdown concluding time is set in to be estimated to lay the time of accomplishing all collectors; All collectors get into dormant state simultaneously in the time of setting, and wait for start-up command.
3, self-organization network network construction, all collectors switch to duty through host computer with all collectors after laying and accomplishing, and carry out the networking communication through host computer and all on-the-spot collectors.In the management software of host computer, can monitor all equipment network situation, after all devices all is in the normal network communication state, can carry out next step operation.
4, trigger and gather, after all collectors are laid and accomplished, send data movement instruction, setting data load mode earlier; Send the instruction of data timing synchronous acquisition then and carry out the synchronization timing startup, by record data lock in time.
5, data upload has been gathered the back and has been stopped gathering by upper computer end transmission order., can be provided with at host computer and upload the data in the required time section automatically after sending order data upload like need, upload and stop transmission automatically after finishing.
6, host computer deal with data after all data upload are accomplished, can use software to carry out the processing of geological data in host computer.
The key technical indexes in this embodiment:
1, A/D converter: 24
2, instantaneous dynamic range: greater than 120db
3, sampling rate: 10 μ s～10ms
4, common-mode rejection ratio: >=120dB
5, data acquisition modes: regularly, trigger, optional continuously
6, time synchronizing method: GPS time service, RTC synchronous clock
7, synchronization accuracy: ± 20 μ s
8, wireless transmission wave band: ISM
9, wireless transmission distance: 75 meters
10, work power consumption: less than 300mA
11, wait for power consumption: 20 μ A
12, power supply mode: 5VDC
13, environment temperature :-20 ℃～80 ℃; Ambient humidity: < 70%
14, collector physical dimension: φ 58 * 168 (mm)
15, collector weight: 1Kg
To sum up, the beneficial effect that adopts technique scheme to produce is: 1) little, the light weight of collector volume is convenient for carrying, arranges; 2) a large amount of cables has been saved in wireless telecommunications between collector and the host computer, is beneficial in the environment of the mountain region of complicacy to use.
Claims (4)
1. portable mountain region wireless seismic survey system is characterized in that constituting by host computer with the collector of said host computer wireless telecommunications;
Said collector comprises wave detector, data acquisition module, main control module, GPS module and first wireless transport module;
Said data acquisition module is made up of selftest module, filter network, analog switch, preposition amplification and A/D converter; The corresponding output end of said selftest module connects the respective input of wave detector, filter network, module switch and A/D converter respectively; The output terminal of wave detector connects A/D converter through filter network, analog switch and preposition amplification successively;
Said main control module comprise the ARM9 module, with two-way Flash that is connected of ARM9 module and SDRAM; Said ARM9 module is connected with A/D converter is two-way;
Said GPS module is connected with the ARM9 module is two-way respectively with first wireless transport module;
Said host computer comprises computing machine and second wireless transport module that is connected with said computer bidirectional.
2. portable mountain region according to claim 1 wireless seismic survey system is characterized in that said main control module also comprises the SD storage card, and said SD storage card is connected with the ARM9 module is two-way.
3. portable mountain region according to claim 1 wireless seismic survey system is characterized in that said collector also comprises networking interface and USB interface, and said networking interface is connected with the ARM9 module is two-way respectively with USB interface.
4. portable mountain region according to claim 2 wireless seismic survey system is characterized in that said wave detector adopts moving-coil geophone.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353983A (en) * | 2011-06-30 | 2012-02-15 | 石家庄经济学院 | Portable mountain wireless earthquake surveying system |
| CN104316168A (en) * | 2014-11-19 | 2015-01-28 | 中国人民解放军总参谋部工程兵科研三所 | Self-calibration networking type wireless vibration tester |
| CN105116441A (en) * | 2015-07-29 | 2015-12-02 | 中国矿业大学 | Method of reducing mine earthquake monitoring system data quantities and mine earthquake monitoring apparatus |
| CN105425678A (en) * | 2015-12-15 | 2016-03-23 | 华中科技大学 | Quick self-checking internal inspection data acquisition device for heating furnace tube leakage flux |
| CN106501850A (en) * | 2016-11-11 | 2017-03-15 | 珠海国勘仪器有限公司 | A kind of single-channel seismic signal pickup assembly and seismic signal acquiring system |
| CN108646080A (en) * | 2018-07-12 | 2018-10-12 | 中铁磁浮科技（成都）有限公司 | Magnetic-levitation train high-voltage electrical box high current real-time detecting system |
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2011
- 2011-06-30 CN CN 201120227424 patent/CN202166747U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353983A (en) * | 2011-06-30 | 2012-02-15 | 石家庄经济学院 | Portable mountain wireless earthquake surveying system |
| CN104316168A (en) * | 2014-11-19 | 2015-01-28 | 中国人民解放军总参谋部工程兵科研三所 | Self-calibration networking type wireless vibration tester |
| CN104316168B (en) * | 2014-11-19 | 2018-01-05 | 中国人民解放军总参谋部工程兵科研三所 | Can self-alignment networking type wireless vibration tester |
| CN105116441A (en) * | 2015-07-29 | 2015-12-02 | 中国矿业大学 | Method of reducing mine earthquake monitoring system data quantities and mine earthquake monitoring apparatus |
| CN105425678A (en) * | 2015-12-15 | 2016-03-23 | 华中科技大学 | Quick self-checking internal inspection data acquisition device for heating furnace tube leakage flux |
| CN106501850A (en) * | 2016-11-11 | 2017-03-15 | 珠海国勘仪器有限公司 | A kind of single-channel seismic signal pickup assembly and seismic signal acquiring system |
| CN108646080A (en) * | 2018-07-12 | 2018-10-12 | 中铁磁浮科技（成都）有限公司 | Magnetic-levitation train high-voltage electrical box high current real-time detecting system |
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