CN104076402A - Earthquake deep well comprehensive observation system with multiple sensors combined - Google Patents
Earthquake deep well comprehensive observation system with multiple sensors combined Download PDFInfo
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- CN104076402A CN104076402A CN201410193696.4A CN201410193696A CN104076402A CN 104076402 A CN104076402 A CN 104076402A CN 201410193696 A CN201410193696 A CN 201410193696A CN 104076402 A CN104076402 A CN 104076402A
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Abstract
The invention provides an earthquake deep well comprehensive observation system with multiple sensors combined. The earthquake deep well comprehensive observation system comprises a GPS antenna, a comprehensive controller, a data transmission and storage unit and a well bottom comprehensive observation probe. The comprehensive controller is connected with the GPS antenna and the well bottom comprehensive observation probe through cables respectively, and the data transmission and storage unit controls data collection of the well bottom comprehensive observation probe through modulating signals of the comprehensive controller. The comprehensive controller receives GPS radio-frequency signals of the GPS antenna and earthquake dataflow signals transmitted by the well bottom comprehensive observation probe and converts the signals to digital GPS pulses per second, GPS timestamp serial port signals and earthquake dataflow serial port signals to the data transmission and storage unit. The well bottom comprehensive observation probe is modularized and has cabins, modules are connected through electric signals, one observation item is arranged in one cabin, all item measuring devices are located in different device cabins and have double system backups, the defects of a conventional mode are effectively overcome, control is convenient, and signal reliability is high.
Description
[technical field]
The present invention relates to seismic monitoring technology, relate in particular to the earthquake deep-well Integrated Observation System of multi sensor combination.
[background technology]
Earthquake science be one to be observed basic science, the authenticity of observational data has directly determined the effect of scientific research and application.Seismic monitoring is divided into microseism, macroseism, precursor observation conventionally, wherein precursor observation comprise again earth magnetism, electric, the observations such as deformation, terrestrial stress, underground fluid (containing physics and chemistry).
Borehole observation is to avoid the various interference sources in ground, improves the effective way of observation data quality, is also the direct approach that obtains the parameters such as subsurface temperature, earth magnetism, strain, inclination.And earthquake deep-well INTEGRATED SIGHT is to utilize a bite deep-well to realize the INTEGRATED SIGHT of multiple observation method, comprise many component strains instrument, inclinator, thermometer, magnetometer, broadband seismograph, strong-motion instrument, Pore Pressure meter etc., the physical property, the stress etc. that are established as detection near earthquake source underground medium of this type systematic, change and be significant for survey region structure dynamic environment.
Earthquake deep-well INTEGRATED SIGHT, not only can effectively avoid the mankind's activity on earth's surface to the interference of seismological observation, reduces the impact of surface rock weathering, Changes in weather.Meanwhile, can also solve the problem of large and medium-sized city " seismic monitoring blind area ".On the other hand, the different earthquake observation sensor of installing in same observing environment, can carry out the different compare of analysis of surveying between item, more objectively abnormal information is analysed in depth, and is beneficial to abnormal source and distinguishes.
At present, earthquake deep-well Integrated Observation System is mainly divided into two classes: a class is that seismological observation project sensor is integrated in a probe, sensor signal by cable by analog signal transmission to ground, gathered by the data acquisition unit on ground; The shortcoming that seismological observation project sensor is integrated into an earthquake deep-well Integrated Observation System in probe is:
1), all signals all transmit by unit cable, and this signal is simulating signal, interference is each other to be difficult to eliminate;
2), along with the length of cable is longer, signal attenuation is larger, the degree of depth that is placed into down-hole can not be very dark, limited the range of application of this system;
3), all sensor, collector be by a Power supply, once single-sensor or equipment break down, has influence on possibly other some works, ground wire also shares in addition, interference each other and crosstalk inevitable.
Another kind of earthquake deep-well Integrated Observation System is that seismological observation project sensor and data acquisition unit thereof are integrated in a probe, sensor measurement electric signal out directly, by the collector digitizing in sleeve pipe, is then transferred to ground equipment by bus mode.Although this kind of mode can be accomplished signal long-distance transmissions, solve the problem of placing well depth, but due to all sensors, collector still adopt single power supply, single altogether, fundamentally do not solve the problem of signal cross-talk, temperature disturbance, once single-sensor or equipment break down, may have influence on other some works, and ground wire also shares, interference each other and crosstalk inevitable.
Existing conventional Integrated Observation System, system also all exists certain deficiency at aspects such as comprehensive lightning-arrest, time service, orientation, zeroing, demarcation.
[summary of the invention]
The invention provides a kind of modularization, point Cabin Design of adopting, and adopt dual system backup to design, the implantation of device of an observation item is a cabin, each survey equipment is indoor in different equipment compartments respectively, between module, connect without electric signal, long transmission distance, the earthquake deep-well Integrated Observation System of the much higher sensor combinations of signal reliability.
In order to realize foregoing invention object, the technical solution used in the present invention is:
The earthquake deep-well Integrated Observation System of multi sensor combination, comprises gps antenna, general controller, data transmission and storage unit and shaft bottom INTEGRATED SIGHT probe, and described general controller is connected with gps antenna and shaft bottom INTEGRATED SIGHT probe respectively by cable, between described data transmission and storage unit and general controller, serial ports is connected, and data transmission and storage unit are by the data acquisition of INTEGRATED SIGHT probe at the bottom of the modulation signal control well of general controller, described general controller receives respectively the GPS radiofrequency signal of gps antenna and the geological data stream signal that INTEGRATED SIGHT probe in shaft bottom transmits the GPS pulse per second (PPS) that converts respectively digital form to, GPS time stamp rs 232 serial interface signal and geological data stream rs 232 serial interface signal and passes to data transmission and storage unit, described shaft bottom INTEGRATED SIGHT probe comprises the first cabin, the second cabin, the 3rd cabin, the 4th cabin, the 5th cabin, the 6th cabin and the 7th cabin, the first cabin, the second cabin, the 3rd cabin, the 4th cabin, the 5th cabin, the 6th cabin and the 7th cabin are tubular structure that diameter is equal to and being provided with between any two and being connected in series mutually the hermetically sealed connector that is one from top to bottom successively, in the first cabin body, be provided with two down-hole short-period seismographs that are connected with general controller separately, in the second cabin body, be provided with two two component inclinators that are connected with general controller separately, in the 3rd cabin body, be provided with two water temperature instrument that are connected with general controller separately, in the 4th cabin body, be provided with one and be connected separately the one or the four component strain instrument as main examining system with general controller, in the 5th cabin body, be provided with one and be connected separately the two or the four component strain instrument as standby examining system with general controller, in the 6th cabin body, be provided with two three-component magnetometers that are connected with general controller separately, in the 7th cabin body, be provided with two spaces that are connected with general controller separately and press meter, in cable between described shaft bottom INTEGRATED SIGHT probe and general controller, be respectively equipped with and be connected the communication core that adopts RS485 half-duplex bidirectional communication modes with the each sensor in cabin, in an overall cable, include the communication core of many individual screen structures, each communication core is made up of two power leads and a pair of signal wire.
Preferably, described data transmission and storage unit are also connected with remote control center, between remote control center and data transmission and storage unit, transmit data by private network or public network.
Preferably, each sensor in the upper each cabin of INTEGRATED SIGHT probe, described shaft bottom is connected with three grades of lightning circuits, on the lightning-arrest grounding circuit of one-level, be provided with ceramic gas discharge tube, on the lightning-arrest grounding circuit of secondary, be provided with voltage dependent resistor (VDR), on circuit between one-level lightning protection earthing circuit and secondary lightning protection earthing circuit, be provided with resettable fuse, on three grades of lightning-arrest grounding circuits, be provided with Transient Suppression Diode, on the circuit between secondary lightning protection earthing circuit and three grades of lightning protection earthing circuit, be also provided with inductance.
Preferably, described cable outer layer is polyurethane oversheath, and communication core adopts polytetrafluoroethylmaterial material insulation.
Preferably, between described the first cabin, the second cabin, the 3rd cabin, the 4th cabin, the 5th cabin, the 6th cabin and the 7th cabin and each connector position adopt sealant pouring and sealing being connected and fixed by round hermetically sealed connector.
Preferably, in described shaft bottom INTEGRATED SIGHT probe, be also provided with the electronic compass of being convenient to equipment orientation.
The invention has the beneficial effects as follows:
The present invention adopts modular design, adopt double copies setting simultaneously, thereby improve system reliability and redundancy, catch and possess very actual meaning for flutterring of seismic anomaly, reach in same observation station and obtain different physical quantity observation information, by the record comparison of multiple physical quantity, improve the sensitivity of earthquake pre-warning monitor signal, expand the frequency band of signal simultaneously and improve the dynamic range of signal record, for earthquake precursor observation, the observation of different physical quantities, can flutter the relevant information of catching before impending earthquake more delicately; Adopt deep-well comprehensively to pop one's head in, except reducing the cost that the capital constructions such as expropriation of land, capital construction and power supply, lightning-arrest, communication, environment for seismic observation build, can also lower operating cost, thereby reduce the integrated cost of seismological observation, can utilize more effectively and reasonably deep-well resource.
In addition, the comprehensive probe in down-hole and aboveground data gathering system adopt the transmission of RS485 digital signal, in cable, be respectively equipped with and each sensor or collector connecting communication core, communication core adopts RS485 half-duplex bidirectional communication modes, each communication core is made up of two power leads and a pair of signal wire, like this, each module adopts transmission cable separately, between each package module, connect without electric signal, digital transmission has reduced the coupling between module, reduce disturbing mutually between signal, simplified design, improved system reliability; Particularly communication core has adopted RS485 half-duplex bidirectional communication modes, has reduced the quantity of communication cable, has improved the transmission capacity of transmission cable.In concrete enforcement, each communication core can be realized the transmission of a set of equipment, and 24 road signal wires can transmit the data of the complete incoherent package of 6 cover, thereby improves the transmission capacity of cable, meet the double copies work of system completely, be convenient to the installation of the integrated and equipment of system; The digital signal antijamming capability of cable is strong simultaneously, and high speed data transfer distance can reach more than 2000 meters, is far superior to the performance of analog signal transmission, improves the reliability of system, realizes the long-distance transmissions of system.
[brief description of the drawings]
Fig. 1 is fundamental diagram of the present invention;
Fig. 2 is the mounting structure figure of shaft bottom of the present invention INTEGRATED SIGHT probe;
Fig. 3 is the cross section amplification assumption diagram of communication core of the present invention;
Fig. 4 is three grades of lightning circuit figure in the each cabin of the present invention.
[embodiment]
As shown in Figures 1 to 4, the earthquake deep-well Integrated Observation System of multi sensor combination, comprise gps antenna 1, general controller 2, data transmission and storage unit 3 and shaft bottom INTEGRATED SIGHT probe 4, general controller 2 is connected with gps antenna 1 and shaft bottom INTEGRATED SIGHT probe 4 respectively by cable 5, between data transmission and storage unit 3 and general controller 2, serial ports is connected, and data transmission and storage unit 3 are by the data acquisition of INTEGRATED SIGHT probe 4 at the bottom of the modulation signal control well of general controller 2, general controller 2 receives respectively the GPS radiofrequency signal of gps antenna 1 and the geological data stream signal that shaft bottom INTEGRATED SIGHT probe 4 transmits the GPS pulse per second (PPS) that converts respectively digital form to, GPS time stamp rs 232 serial interface signal and geological data stream rs 232 serial interface signal and passes to data transmission and storage unit 3, wherein, shaft bottom INTEGRATED SIGHT probe 4 comprises the first cabin 40, the second cabin 41, the 3rd cabin 42, the 4th cabin 43, the 5th cabin 44, the 6th cabin 45 and the 7th cabin 46, the first cabin 40, the second cabin 41, the 3rd cabin 42, the 4th cabin 43, the 5th cabin 44, the 6th cabin 45 and the 7th cabin 46 are tubular structure that diameter is equal to and being provided with between any two and being connected in series mutually the hermetically sealed connector 6 that is one from top to bottom successively, in concrete enforcement, the first cabin 40, the second cabin 41, the 3rd cabin 42, the 4th cabin 43, the 5th cabin 44, between the 6th cabin 45 and the 7th cabin 46, adopt sealant pouring and sealing and be connected and fixed by round hermetically sealed connector 6 with each connector position, in the first cabin body 40, be provided with two down-hole short-period seismographs that are connected with general controller 2 separately, in the second cabin body 41, be provided with two two component inclinators that are connected with general controller 2 separately, in the 3rd cabin body 42, be provided with two water temperature instrument that are connected with general controller 2 separately, in the 4th cabin body 43, be provided with one and be connected separately the one or the four component strain instrument as main examining system with general controller 2, in the 5th cabin body 44, be provided with one and be connected separately the two or the four component strain instrument as standby examining system with general controller 2, in the 6th cabin body 45, be provided with two three-component magnetometers that are connected with general controller 2 separately, in the 7th cabin body 46, be provided with two spaces that are connected with general controller 2 separately and press meter, data transmission and storage unit 3 are also connected with remote control center (not shown), between remote control center and data transmission and storage unit 3, transmit data by private network or public network.Meanwhile, in shaft bottom INTEGRATED SIGHT probe 4, be also provided with the electronic compass (not shown) of being convenient to equipment orientation.
As shown in Figures 2 and 3, in cable 5 between shaft bottom INTEGRATED SIGHT probe 4 and general controller 2, be respectively equipped with and be connected the communication core 50 that adopts RS485 half-duplex bidirectional communication modes with the each sensor in cabin, in an overall cable 5, include the communication core 50 of many individual screen structures, each communication core 50 is made up of two power leads and a pair of signal wire, cable 5 skins are polyurethane oversheath, and communication core 50 adopts polytetrafluoroethylmaterial material insulation.
As shown in Figure 4, each sensor on the INTEGRATED SIGHT probe 4 of shaft bottom in each cabin is connected with three grades of lightning circuits, on the lightning-arrest grounding circuit of one-level, be provided with ceramic gas discharge tube 7, on the lightning-arrest grounding circuit of secondary, be provided with voltage dependent resistor (VDR) 8, on circuit between one-level lightning protection earthing circuit and secondary lightning protection earthing circuit, be provided with resettable fuse 9, on three grades of lightning-arrest grounding circuits, be provided with Transient Suppression Diode 10, on the circuit between secondary lightning protection earthing circuit and three grades of lightning protection earthing circuit, be also provided with inductance 11.
The present invention has adopted the Design Mode of double copies, each system is without any the connection of power supply, signal cable, also sharing without any equipment and device, by integrated combination technology, the observation instruments such as componented seismograph, two component inclinators, water temperature instrument, four component strain instrument, three-component magnetometer, Pore Pressure meter, earth-temp. instrument are integrated in a probe, be convenient to installation and the monitoring of equipment, each observation project instrument is dual system backup, and a probe comprises observation sensor and data acquisition unit etc. simultaneously.Each observation sensor and data acquisition unit adopt modular design, realize each observation project sensor respectively in different sensor cabins, each partition module adopts respectively simulation part to separate with numerical portion module, the method for cabling realizes digital-to-analogue isolation respectively, each cabin is connected in series successively and is one by hermetically sealed connector again, a cabin connects a cabin, forms a comprehensive probe.
When use, each cabin adopts power supply separately, lightning-arrest, transmission, does not supply each other ground, and the sensor in a cabin and equipment failure do not affect sensor and the equipment in other cabins, magnetometer for electromagnetic interference (EMI) sensitivity adopts shielded cable protected mode, adopt away from pyrotoxin (as away from power module for temperature sensitive thermometer, digital module and circuit module) mode arrange, signal transmssion line cable adopts custom-designed deep-well Shielded Twisted Pair cable, adopt digital RS485 transmission, cable 5 structures adopt the structure of " line center line ", in an overall cable 5, include the communication core 50 of many individual screen structure interior lines, communication core 50 is for the signal of the each cabin of individual transmission body, independently shielding construction can avoid the sensor between the body of each cabin mutually to crosstalk, especially this sensor extremely responsive to electromagnetism of electromagnetic instrument, adopt shielded cable protection successful.
Secondly, when use, the shaft bottom INTEGRATED SIGHT 4 built-in electronic compasss of popping one's head in, are convenient to the installation direction orientation under deep shaft system equipment raise, and orientation accuracy is higher reaches 3 °, accurately directed; In equipment, two component inclinators, four component strain instrument adopt program control zeroing mode to realize signal and automatically return to zero-bit, wherein to allow maximum hole deviation be 5 degree to two component inclinators, four component strain instrument allow at maximum confined pressure 10MPa (1000 meters), and within the scope of this, system all can return back to zero-bit state by automatic zero set (AZS); Down-hole short-period seismograph and two component inclinators, four component strain instrument, three-component magnetometer, Pore Pressure meter, earth-temp. instrument all can be understood by demarcation the running status of system.
In addition, due between the first cabin 40, the second cabin 41, the 3rd cabin 42, the 4th cabin 43, the 5th cabin 44, the 6th cabin 45 and the 7th cabin 46 and each connector position adopt sealant pouring and sealing being connected and fixed by round hermetically sealed connector 6, cable 5 skins are polyurethane oversheath, communication core 50 adopts polytetrafluoroethylmaterial material insulation, this system can reach normally use under 10MPa situation at the deep-well of 1000 meters, the pressure in shaft bottom effectively, and waterproof and sealing property are strong; The every road of the comprehensive earthquake scope of the deep-well signal of native system has all adopted three grades of lightning protection systems, effectively avoids the thunderbolt of deep-well scope and takes shelter from the thunder; At work, by gps antenna 1 and general controller 2 realize bottom equipment and landscape apparatus to time strictly synchronize, GPS signal second is by 600 meters of about 2us of left and right its time delay of deep-well cable, on seismological observation, impact can be ignored, and then reach the synchronous time service in shaft bottom, earth's surface and increase the pattern of timestamp, realize long-range time service.
The above embodiment just, for preferred embodiment of the present invention, not limits practical range of the present invention with this, and the equivalence that all shapes according to the present invention, structure and principle are done changes, and all should be covered by protection scope of the present invention.
Claims (6)
1. the earthquake deep-well Integrated Observation System of multi sensor combination, comprises gps antenna, general controller, data transmission and storage unit and shaft bottom INTEGRATED SIGHT probe, and described general controller is connected with gps antenna and shaft bottom INTEGRATED SIGHT probe respectively by cable; It is characterized in that:
Between described data transmission and storage unit and general controller, serial ports is connected, and data transmission and storage unit are by the data acquisition of INTEGRATED SIGHT probe at the bottom of the modulation signal control well of general controller;
Described general controller receives respectively the GPS radiofrequency signal of gps antenna and the geological data stream signal that INTEGRATED SIGHT probe in shaft bottom transmits the GPS pulse per second (PPS) that converts respectively digital form to, GPS time stamp rs 232 serial interface signal and geological data stream rs 232 serial interface signal and passes to data transmission and storage unit;
Described shaft bottom INTEGRATED SIGHT probe comprises the first cabin, the second cabin, the 3rd cabin, the 4th cabin, the 5th cabin, the 6th cabin and the 7th cabin, the first cabin, the second cabin, the 3rd cabin, the 4th cabin, the 5th cabin, the 6th cabin and the 7th cabin are tubular structure that diameter is equal to and being provided with between any two and being connected in series mutually the hermetically sealed connector that is one from top to bottom successively, in the first cabin body, be provided with two down-hole short-period seismographs that are connected with general controller separately, in the second cabin body, be provided with two two component inclinators that are connected with general controller separately, in the 3rd cabin body, be provided with two water temperature instrument that are connected with general controller separately, in the 4th cabin body, be provided with one and be connected separately the one or the four component strain instrument as main examining system with general controller, in the 5th cabin body, be provided with one and be connected separately the two or the four component strain instrument as standby examining system with general controller, in the 6th cabin body, be provided with two three-component magnetometers that are connected with general controller separately, in the 7th cabin body, be provided with two spaces that are connected with general controller separately and press meter,
In cable between described shaft bottom INTEGRATED SIGHT probe and general controller, be respectively equipped with and be connected the communication core that adopts RS485 half-duplex bidirectional communication modes with the each sensor in cabin, in an overall cable, include the communication core of many individual screen structures, each communication core is made up of two power leads and a pair of signal wire.
2. the earthquake deep-well Integrated Observation System of multi sensor combination according to claim 1, it is characterized in that, described data transmission and storage unit are also connected with remote control center, between remote control center and data transmission and storage unit, transmit data by private network or public network.
3. the earthquake deep-well Integrated Observation System of multi sensor combination according to claim 1, it is characterized in that, each sensor in the upper each cabin of INTEGRATED SIGHT probe, described shaft bottom is connected with three grades of lightning circuits, on the lightning-arrest grounding circuit of one-level, be provided with ceramic gas discharge tube, on the lightning-arrest grounding circuit of secondary, be provided with voltage dependent resistor (VDR), on circuit between one-level lightning protection earthing circuit and secondary lightning protection earthing circuit, be provided with resettable fuse, on three grades of lightning-arrest grounding circuits, be provided with Transient Suppression Diode, on circuit between secondary lightning protection earthing circuit and three grades of lightning protection earthing circuit, be also provided with inductance.
4. the earthquake deep-well Integrated Observation System of multi sensor combination according to claim 1, is characterized in that, described cable outer layer is polyurethane oversheath, and communication core adopts polytetrafluoroethylmaterial material insulation.
5. the earthquake deep-well Integrated Observation System of multi sensor combination according to claim 1, it is characterized in that, between described the first cabin, the second cabin, the 3rd cabin, the 4th cabin, the 5th cabin, the 6th cabin and the 7th cabin and each connector position adopt sealant pouring and sealing being connected and fixed by round hermetically sealed connector.
6. the earthquake deep-well Integrated Observation System of multi sensor combination according to claim 1, is characterized in that, in described shaft bottom INTEGRATED SIGHT probe, is also provided with the electronic compass of being convenient to equipment orientation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410193696.4A CN104076402A (en) | 2014-05-08 | 2014-05-08 | Earthquake deep well comprehensive observation system with multiple sensors combined |
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| CN201410193696.4A CN104076402A (en) | 2014-05-08 | 2014-05-08 | Earthquake deep well comprehensive observation system with multiple sensors combined |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655188A (en) * | 2015-02-03 | 2015-05-27 | 西安铠镝电子科技有限公司 | Intelligent tour inspection instrument of urban gas valve well |
| CN113126143A (en) * | 2021-04-22 | 2021-07-16 | 中国科学院、水利部成都山地灾害与环境研究所 | Portable micro-motion and strong-vibration real-time monitor system |
-
2014
- 2014-05-08 CN CN201410193696.4A patent/CN104076402A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655188A (en) * | 2015-02-03 | 2015-05-27 | 西安铠镝电子科技有限公司 | Intelligent tour inspection instrument of urban gas valve well |
| CN113126143A (en) * | 2021-04-22 | 2021-07-16 | 中国科学院、水利部成都山地灾害与环境研究所 | Portable micro-motion and strong-vibration real-time monitor system |
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