CN102680168A - Method for recording pore water pressure mutation process during disaster and monitoring device thereof - Google Patents
Method for recording pore water pressure mutation process during disaster and monitoring device thereof Download PDFInfo
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Abstract
The invention relates to a method for recording a pore water pressure mutation process during a disaster and a monitoring device thereof. The method comprises the following steps of: (1) presetting a pore water pressure mutation threshold value parameter for judging whether mutation occurs; (2) monitoring pore water pressure but not acquiring and storing data without a mutation, wherein the instrument works in a monitoring mode without the mutation; (3) once the pore water pressure change is detected to exceed the mutation threshold value, converting into a data acquisition mode; (4) entering the data acquisition mode to carry out data acquisition on suddenly changed pore water pressure, store the acquired large quantities of data in a storage unit in the instrument and send the data and pore water pressure mutation information to an upper computer; (5) stopping acquiring data until the pore water pressure is stable, and converting into the monitoring mode; and (6) repeating the steps from (1) to (5) circularly. The monitoring device has a simple structure and can be used for catching instantaneous pore water pressure changes and automatically recording without working in a disaster.
Description
Technical field
The invention belongs to Geotechnical Engineering safety monitoring technology field; Be specifically related to a kind of method of pore water pressure sudden change when writing down disaster and taking place and based on the monitoring device of this method: pore water pressure sudden change monitoring and recording instrument.
Background technology
Pore water pressure is meant the pressure of water between interior particulate of underground rock-soil layer or the hole, and when this pressure changed overrun, it was stable directly to influence underground rock-soil layer, causes geologic hazard.The measuring method of general pore water pressure is that " pore pressure gauge " (sensor) is embedded in position, underground measured point; Sensor signal is sent to ground " readout instrument " or " data collecting instrument " carries out manual measurement or automatic measurement through the long-distance cable line, the data of collection finally are transferred to central control room (CCR) host computer (computing machine) and carry out analyzing and processing.
The project security monitoring code requirement carries out periodic monitoring, analysis and judgement in construction time or runtime to pore water pressure, and takes counter-measure.Usually the pore water pressure variation is very slow, during manual measurement, measures weekly 1 ~ 2 time, if automatic measurement can be provided with and measure 1 time automatically " data collecting instrument " every day, or carry out random measurement as required.Sometimes pore water pressure does not nearly all change within one day, if measurement is too frequent, measured value is identical, need take a large amount of storage spaces again, there is no need.Domestic and international the most frequently used type vibration wire or differential resistance type " pore pressure gauge " (sensor), the time of once sampling is 3 ~ 5 seconds, belongs to the static characteristics sensor, can satisfy this monitoring requirement.
Global in recent years various geologic hazards take place frequently; Need study for pore water pressure " sudden change " mechanism that disaster causes; This required in short a few minutes to several hours time that disaster takes place; The overall process that monitoring and record pore water pressure change according to above-mentioned routine monitoring method, adopts the static characteristics pore water pressure sensor can't write down this pore water pressure mutation process that takes place at random.Simultaneously, disaster was often supplied power when taking place, communication system all can be destroyed, and the long-distance cable that pore water pressure sensor uses suffers that more easily thunderbolt causes that monitoring equipment damages.
Along with modern sensor technology, electronic technology and technical development of computer, pore water pressure sensor, high-performance data collection and the one chip microcomputer integrated circuit of multiple good dynamic appears.Based on the hardware condition of this maturation, the present invention proposes a kind of method of catching disaster pore water pressure mutation process when taking place and based on the monitoring device of this method.
Present technique is mainly used in: when disasters such as collapse in landslide, reservoir dam break, the collapse of rivers embankment, building foundation, earthquake, tsunami take place; Pore water pressure to unexpected variation carries out tracking and monitoring and record automatically; And hydraulic engineering, Geotechnical Engineering model test, the mechanism that takes place for the research disaster provides a kind of effective means.
Summary of the invention
The objective of the invention is to propose a kind of when writing down disaster and taking place the pore water pressure mutation process method and based on the monitoring device of this method: pore water pressure sudden change monitoring and recording instrument.
The main thought of this method is: instrument only carries out data acquisition when of short duration pore water pressure is undergone mutation, and in the very long stand-by period, only pore water pressure is carried out tracking and monitoring, judges whether to undergo mutation.Therefore " monitoring pattern " and " data acquisition scheme " two kinds of mode of operations are set, and the pore water pressure sudden change is the condition of " triggering " entering " data acquisition scheme ".
The scheme of accomplishing the foregoing invention task is, a kind of method that writes down the burst fire-disaster pore water pressure is characterized in that step is following,
⑴. pore water pressure " sudden change threshold value " parameter is set in advance, and promptly unit interval pore water pressure changing value judges whether to take place " sudden change " (disaster generation) with this;
⑵. instrument is not operated in " monitoring pattern " when having " sudden change " (disaster generation): only pore water pressure is carried out tracking and monitoring, do not gather and preserve data;
⑶. surpass " sudden change threshold value " (undergoing mutation) at " monitoring pattern " in case detect the pore water pressure variation, " triggering " instrument is transformed into " data acquisition scheme " by " monitoring pattern ";
⑷. get into " data acquisition scheme ": the pore water pressure to unexpected variation carries out data acquisition, and the mass data of collection is kept at the instrument internal storage unit;
⑸. when pore water pressure is steady, stop data acquisition, and be transformed into " monitoring pattern ";
⑹. repeat above step ⑴-⑸, so circulation.
Above method has the scheme of further optimization:
In this prioritization scheme, increasing has one or more in the following steps:
⑺. when total system changed " data acquisition scheme " over to, the one chip microcomputer module started standby power supply through control circuit;
⑻. when total system changed " data acquisition scheme " over to, the one chip microcomputer module was adjusted the time interval of pore water pressure sensor image data through control circuit, improves the SF of pore water pressure;
⑼. preserve measurement data and send to host computer, send pore water pressure " sudden change " warning message to host computer;
⑽. the one chip microcomputer module judges according to data and the determined numerical standard of step ⑴ constantly received whether the jumping phenomenon of pore water pressure finishes, if be " being ", then total system goes back to " monitoring pattern "; If " denying " then continues to operate in " data acquisition scheme ".
The technical scheme of accomplishing the 2nd invention of the application task is the employed monitoring device of method of above-mentioned record burst fire-disaster pore water pressure: pore water pressure sudden change monitoring and recording instrument, it is characterized in that,
This pore water pressure sudden change monitoring and recording instrument is integrated pore water pressure sensor and data collecting instrument, forms incorporate monitoring and recording instrument;
Said pore water pressure sensor adopts dynamic pore water pressure sensor;
Said data collecting instrument is made up of one chip microcomputer, comprises parts such as storage unit, signal gathering unit, communication unit, clock unit and power control unit.
That is, pore water pressure sensor described in the present invention is not conventional static pore water pressure sensor, but has dynamic perfromance, is fit to the dynamic pore water pressure sensor that gaging pressure changes suddenly.Described pore water pressure pressure transducer with dynamic perfromance is meant the dynamic response frequency >=500Hz of this pore water pressure pressure transducer.
Several described pore water pressure sudden change monitoring and recording instruments can be provided with a common host computer; Described each pore water pressure sudden change monitoring and recording instrument is communicated by letter with this host computer and is adopted RS232/RS485 communication interface, by appointment communication protocol transmission command and data; Each pore water pressure sudden change monitoring and recording instrument all has a unique device identification number, as the device address of communicating by letter with host computer, forms pore water pressure sudden change monitoring network.
More particularly, equipment of the present invention has following prioritization scheme:
⑴. this pore water pressure sudden change monitoring and recording instrument adopts solar powered mode, utilizes solar panel to charge in batteries;
⑵. each pore water pressure sudden change monitoring and recording instrument all has a unique device identification number (promptly; Each pore water pressure sudden change monitoring and recording instrument is respectively equipped with device identification number separately); As the device address of communicating by letter, form pore water pressure sudden change monitoring network with host computer;
In other words, the equipment characteristic of monitoring device of the present invention is:
(1) pore water pressure is detected employing dynamic perfromance pore water pressure sensor, rather than adopt conventional type vibration wire or differential resistance type static characteristics pore water pressure sensor "
(2) this instrument is integrated dynamic perfromance pore water pressure " sensor " and " data collecting instrument ", forms an integrated monitoring device, is the independent monitoring system of a minimum; This pore water pressure sudden change monitoring and recording instrument collection " sensor " and " data acquisition " is all over the body, forms an integrated monitoring device, is the independent monitoring system of a minimum, need not host computer intervention work after instrument starts; When the generation disaster causes host computer paralysis and communication line to damage, do not influence monitoring device work;
(3) " data collecting instrument " in this integrated monitoring device is made up of one chip microcomputer, comprises parts such as storage unit, signal gathering unit, communication unit, clock unit, internal electric source and power control unit;
(4) major function of instrument is realized by the computer software programs method, comprises pore water pressure detection, signals collecting, threshold decision, false triggering judgement, command process, data transmission work etc.;
(5) " pore water pressure sensor " merges into a single whole with " data collecting instrument ", cancelled long range simulation signal transmssion line between the two, makes interference and signal attenuation be reduced to minimum degree, and the instrument more stable work is reliable;
(6) adopt independently storer preservation data, read the data of having preserved even instrument damage also can be taken out storer.
More optimize with in more detail, basic skills of the present invention and characteristic are following, the method for pore water pressure mutation process during the generation of record disaster, referring to Fig. 1:
(1) pore water pressure " sudden change threshold value " parameter is set in advance, promptly unit interval pore water pressure changing value judges whether to take place " sudden change " with this;
Pore water pressure does not change very for a short time, very slow when (2) having disaster to take place, and this moment, instrument was operated in " monitoring pattern ", and this pattern is only carried out tracking and monitoring to pore water pressure, does not gather and preserve data, saves the internal storage space of preciousness like this;
(3) in a single day detect the pore water pressure variation at " monitoring pattern " and undergo mutation above " sudden change threshold value ", " triggering " instrument is transformed into " data acquisition scheme " by " monitoring pattern ";
Instrument got into " data acquisition scheme " when (4) disaster took place; Pore water pressure to unexpected variation carries out data acquisition; The mass data of gathering is kept at the instrument internal storage unit and sends warning message to host computer; When pore water pressure is steady, stop data acquisition, and be transformed into " monitoring pattern ", so circulation.
This invention characteristics: adopted the one chip microcomputer technology, novel, simple in structure, major function is realized by computer software.The present invention can catch the pore water pressure variation that this moment changes suddenly automatically, and record pore water pressure change procedure, even after instrument cable is destroyed, instrument can not quit work yet, and can take out memory read data.
Description of drawings
The process flow diagram of pore water pressure mutation process method when Fig. 1 writes down the disaster generation;
Fig. 2 monitoring device structural representation;
Each parts block diagram of Fig. 3 monitoring device;
Fig. 4 " monitoring pattern " and " data acquisition scheme " workflow diagram.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the inventive method is done further explain below in conjunction with accompanying drawing and embodiment.Specific embodiment described herein is only in order to explaining the present invention, and is not used in qualification the present invention.
Present embodiment utilizes one chip microcomputer technology and hyundai electronics measuring technique and low-power consumption large scale integrated circuit to form, will " pore water pressure sensor " and " data collecting instrument " composition one independently, complete " data collector ".Be with the difference of traditional measurement mode:
(1) do not have external data collecting instrument, but directly be connected with host computer;
(2) be fit to rugged surroundings work, surface installation (host computer, power supply) damaged when instant disaster took place, and " monitoring device " still works on;
(3) in the process of monitoring that pore water pressure is undergone mutation, need not the host computer intervention;
(4) data storage cell can take out from this instrument, by the inner image data information of preserving of computing machine read module.
Below embodiment " monitoring device " is elaborated, referring to Fig. 2, Fig. 3, Fig. 4.
1. " monitoring device " structure and effect
This device mainly is made up of parts such as pore water pressure sensor, data acquisition module, accumulator, metallic seal shell and cables, and communication and power control unit possess anti-surge impact function, referring to Fig. 2, Fig. 3.
Among Fig. 2: pore water pressure 1 sees through permeable stone 2, passes to water pressure sensor 3; Data acquisition module 5 among the figure; Accumulator 6; Cable 7; Can 4.
(1) pore water pressure sensor
" pore water pressure sensor " is embedded in " monitoring device " inside, substituted routine measurement method employed external " pore pressure gauge ", is used to detect pore water pressure and changes.
(2) data acquisition module
This module routine measurement method just employed independently " data collecting instrument ", data acquisition module comprises: one chip microcomputer unit, data storage cell, signal gathering unit, clock unit, communication unit, power control unit.
(3) accumulator
Built-in chargeable storage, under the normal condition by externally fed, and to charge in batteries.When accident takes place, may destroy the externally fed power supply and communicate by letter, this moment, instrument automatically switched to the internal battery power supply.Therefore, even after instrument cable is destroyed, instrument can not quit work yet.External power source can adopt the solar cell for supplying power mode.
(4) metallic seal shell
Metal shell is used for the electronic instrument part of seal protection instrument, and the pore water pressure in the rock-soil layer can only pass to pore water pressure sensor through permeable stone.Metal shell ground connection has does good electromagnetic screen protective effect.
(5) cable
The special-purpose water-proof shielded cable is used for externally fed and communicates by letter with host computer.
2. " monitoring device " each component function
(1) one chip microcomputer unit
The one chip microcomputer unit is the core component of device; Adopt 8 or 16 one chip microcomputers of highly integrated high speed, low-power consumption and integrated circuit related with same to set up, comprise functions such as command process function, watchdog function, data acquisition control, communications.One chip microcomputer operation is the software program of establishment in advance, and the main work of carrying out has: receive host computer order, parameter setting, automatically gather pore water pressure value, pressure jump differentiation, upload data and information, preservation data etc.
(2) signal gathering unit
The function of signal gathering unit is that the analog signal conversion that pore water pressure sensor is exported is the digital signal that computing machine can be discerned.Collecting unit comprises sensor drive driving circuit, signal conditioning circuit, high-speed a/d change-over circuit etc., and according to nyquist sampling theorem, SF should be greater than 5 ~ 10 times of signal highest frequencies.
(3) data storage cell
Data storage cell be independently can plug the non-loss property storer of high capacity (flash disk or SD card), all data of gathering when enough preserving pore water pressure and undergoing mutation, and data still can long preservation after the power down.Even device damages, data-carrier store can take out from this instrument separately, by the image data information of preserving in the computer-readable access to memory.
(4) clock unit
For monitoring device provides real-time clock signal, timing parameter can be provided with, revise.
(5) communication interface
Communicate by letter with host computer and to adopt RS232/RS485 communication interface, by appointment communication protocol transmission command and data.Each device all has a unique device identification number, as the device address of communicating by letter with host computer.
Communication mode can be selected wired or wireless mode, 1.2 kilometers of twisted-pair feeder standard traffic distances; Fiber optic cable communications can reach tens of kilometers; The wireless data sending mode can reach several kilometers to tens of kilometers.
(6) power control unit
Adopt the high performance rechargeable lithium battery as the instrument internal battery, by the external power source charging, behind extraneous power cut-off, automatically switch to the internal cell power supply under the normal condition, guarantee that the continuous electrician of instrument does.
(7) pore water pressure sensor
Pore water pressure sensor is made up of the water pressure sensor of permeable stone and high dynamic performance, dynamic response frequency >=500Hz.Pore water pressure is passed to water pressure sensor through permeable stone, selects the permeable stone of different coefficients of permeability according to the soil layer situation.It is identical with common pore pressure gauge that instrument is installed method for embedding.
3. the detection determination methods of pore water pressure sudden change
The sudden change threshold value is a parameter of judging whether pore water pressure undergos mutation, and the threshold value of suddenling change is a unit interval pore water pressure changing value, below to " sudden change threshold value " and " time in SI " explanation.
(1) sudden change threshold value
Pore water pressure variation range when at first understanding monitored some normal condition calculates the unit interval pore water pressure and changes maximal value (absolute value), surpasses this maximal value certain limit, thinks to begin to undergo mutation, and confirms the sudden change threshold value based on this.
(2) time in SI
Above-mentioned " unit interval " is to the interval time of pore water pressure sampling, also claims the sampling period (or SF).Because the process time of pore water pressure sudden change is very short, so the time in SI should be selected between several seconds ~ a few minutes.
For different engineering projects and monitoring target, sudden change threshold value and time in SI are different, need be provided with as the case may be.
4. command process and information transmission
Command process adopts " MS master-slave " communication work mode, and host computer is as main frame, and " monitoring device " is as slave.Communication protocol by appointment, data layout, method of calibration, host computer sends order to " monitoring device ", and receives information and the data of returning." monitoring device " must make order and replying, and command process work is following.
(1) instrument state inspection order, return following data: work at present pattern, pore water pressure value, sudden change threshold value, SI, clock, voltage, residual memory space, etc. the parameters value;
(2) parameter is provided with order, comprises following parameter: sudden change threshold value, SI, clock, calibration value, original pressure value, installation elevation etc.;
(3) reading cells data command: the sampled data that will be kept in the storer sends to host computer;
(4) empty the storage unit order: empty the sampled data that storer is preserved, discharge storage space;
(5) startup command: start instrument work;
(6) cease and desist order: instrument quits work.
" monitoring device " starts after the operation, and self-timing does not need host computer echo reply signal to host computer send state information and data, that is to say whether be indifferent to host computer receives.
5. " monitoring pattern " and " data acquisition scheme " workflow explanation (referring to Fig. 4)
(1) " monitoring pattern "
Pore water pressure does not change very for a short time, very slow when having disaster to take place, and this moment, instrument was operated in " monitoring pattern ", and the groundwork step is following:
Whether 1. step is checked has the host computer order, if there is order to handle it to order, processing finishes to get into step 2.; Otherwise directly get into step 2.;
Step judges whether to undergo mutation 2. to the pore water pressure tracking and monitoring, in case disaster takes place, instrument detecting surpasses preset threshold to the pore water pressure value of sudden change, produces " triggering " signal, gets into " data acquisition scheme ", otherwise gets into step 3.;
3. step regularly sends " normally " signal to host computer, and changes step over to 1., so circulation.Data are not gathered and preserved to this pattern, saves valuable internal storage space like this.
(2) " triggering " conversion
Pore water pressure is undergone mutation, and " triggering " instrument is transformed into " data acquisition scheme " by " monitoring pattern ", sends alerting signal to host computer simultaneously;
(3) " data acquisition scheme "
Instrument got into " data acquisition scheme " when disaster took place, and this process is very short, and this pattern job step is following:
Step 1. instrument is adjusted interval time of measurement automatically, increases pore water pressure force measurement number of times, gets into the HSDA state;
2. step carries out data acquisition to the pore water pressure of unexpected variation, and these mass data are saved in the instrument internal storage unit, and data are issued host computer simultaneously;
3. step continues to detect pore water pressure and whether surpasses threshold value, then changes step 4. if still surpass, and continues the loop-around data collecting work; Otherwise withdraw from " data acquisition scheme ", return to " monitoring pattern ";
Whether 4. step is checked has the host computer order, if there is order to handle it to order, processing finishes to get into step 2.; Otherwise directly get into step 2..
6. host computer and system operation
Host computer is the computing machine that is positioned at central machine room away from the scene; The communication software of the special establishment of operation; Utilize Computer Communications Interface and " monitoring device " to set up contact, communication protocol is by appointment sent order, parameter and is received each association to " monitoring device ".Also can directly be connected at the monitoring scene, debug and the parameter setting with notebook computer with " monitoring device ".Groundwork is following:
(1) " monitoring device " carried out the parameter setting, start operation;
(2) host computer can send order at any time, understands " monitoring device " running status, revises parameter, reading of data;
(3) " monitoring device " regularly sends work state information, data to host computer under " monitoring pattern " and " data acquisition scheme ", need not the host computer intervention;
When (4) the generation disaster causes host computer paralysis and communication line to damage, do not influence " monitoring device " work, disaster can be taken out internal storage after finishing, on computers sense data;
(5) adopt the computer data process software of special establishment that the data of gathering are carried out analyzing and processing.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for the mutation process of pore water pressure when writing down disaster and taking place is characterized in that, is changed to condition suddenly with pore water pressure, trigger instrument and get into " data acquisition scheme ", and the process of record pore water pressure sudden change, step is following,
⑴. pore water pressure " sudden change threshold value " parameter is set in advance, judges whether to take place " sudden change " with this;
⑵. instrument is not operated in " monitoring pattern " when having " sudden change ": only pore water pressure is carried out tracking and monitoring, do not gather and preserve data;
⑶. surpass " sudden change threshold value " at " monitoring pattern " in case detect the pore water pressure variation, trigger instrument and be transformed into " data acquisition scheme " by " monitoring pattern ";
⑷. get into " data acquisition scheme ": the pore water pressure to unexpected variation carries out data acquisition, and the mass data of collection is kept at the instrument internal storage unit;
⑸. when pore water pressure is steady, stop data acquisition, and be transformed into " monitoring pattern ";
⑹. repeat above step ⑴-⑸, so circulation.
2. the method for record burst fire-disaster pore water pressure according to claim 1 is characterized in that, increasing has following steps:
⑺. when the total system external power source cut off the power supply, the one chip microcomputer module started standby power supply through control circuit.
3. the method for record burst fire-disaster pore water pressure according to claim 1 is characterized in that, increasing has following steps:
⑻. when total system changed " data acquisition scheme " over to, the one chip microcomputer module was adjusted the time interval of pore water pressure sensor image data through control circuit, improves the SF of pore water pressure.
4. the method for record burst fire-disaster pore water pressure according to claim 1 is characterized in that, increasing has following steps:
⑼. preserve measurement data and send to host computer, send pore water pressure " sudden change " warning message to host computer.
5. the method for record burst fire-disaster pore water pressure according to claim 1 is characterized in that, increasing has following steps:
⑽. the one chip microcomputer module judges according to data and the determined numerical standard of step ⑴ constantly received whether the jumping phenomenon of pore water pressure finishes, if be " being ", then total system goes back to " monitoring pattern "; If " denying " then continues to operate in " data acquisition scheme ".
6. according to the method for the described record burst fire-disaster of one of claim 1-5 pore water pressure; It is characterized in that; Said host computer is the computing machine that is positioned at central machine room away from the scene; This host computer utilizes Computer Communications Interface and described " monitoring device " to set up contact, and communication protocol is by appointment sent order, parameter and received each association to " monitoring device ".
7. the employed monitoring device of method of the described record burst fire-disaster of claim 1 pore water pressure: pore water pressure sudden change monitoring and recording instrument; It is characterized in that; This pore water pressure sudden change monitoring and recording instrument is integrated pore water pressure sensor and data collecting instrument, forms incorporate monitoring and recording instrument;
Said pore water pressure sensor adopts dynamic pore water pressure sensor;
Said data collecting instrument is made up of one chip microcomputer, comprises storage unit, signal gathering unit, communication unit, clock unit and power control unit.
8. pore water pressure sudden change monitoring and recording instrument according to claim 7 is characterized in that described dynamic pore water pressure pressure transducer is meant the dynamic response frequency >=500Hz of this pore water pressure pressure transducer.
9. pore water pressure sudden change monitoring and recording instrument according to claim 7 is characterized in that, this pore water pressure sudden change monitoring and recording instrument adopts solar powered mode, utilizes solar panel to charge in batteries.
10. according to claim 7 or 8 or 9 described pore water pressure sudden change monitoring and recording instruments; It is characterized in that; Each pore water pressure sudden change monitoring and recording instrument is respectively equipped with device identification number separately, as the device address of communicating by letter with host computer, forms pore water pressure sudden change monitoring network.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103344378A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Telemetering type soil permeation water pressure measuring device |
| CN103674396A (en) * | 2013-12-06 | 2014-03-26 | 苏州科技学院 | Minitype dynamic infiltration water pressure sensor |
| CN105784256A (en) * | 2016-04-08 | 2016-07-20 | 上海恒瑞测控技术有限公司 | High-frequency substantial-vibration high-pressure-intensity measurement method and apparatus |
| CN107607987A (en) * | 2016-07-11 | 2018-01-19 | 林内株式会社 | Earthquake detection apparatus |
| WO2020183065A1 (en) * | 2019-03-12 | 2020-09-17 | Mato Engineering Oy | Measurement device and method |
| CN112833964A (en) * | 2020-03-26 | 2021-05-25 | 西安普特流体控制有限公司 | Transient current monitoring method and multi-channel water hammer detector |
| CN113593207A (en) * | 2021-06-18 | 2021-11-02 | 哈尔滨理工大学 | Pore water pressure online monitoring and early warning system and method based on 5G network |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429741A (en) * | 1974-02-28 | 1976-03-24 | Soil Instr Ltd | Soil and rock testing piezometers |
| WO2004022865A2 (en) * | 2002-09-05 | 2004-03-18 | Geosierra Llc | Seismic base isolation by electro-osmosis during an earthquake event |
| CN1532547A (en) * | 2003-03-25 | 2004-09-29 | 中国海洋大学 | Detector for solibody in-situ hole pressure and affecting depth under wave action |
| CN1790017A (en) * | 2005-12-12 | 2006-06-21 | 国家海洋局第一海洋研究所 | Multifunctional multi-channel detection rod for monitoring pore water pressure of seabed soil |
| CN201335887Y (en) * | 2008-12-03 | 2009-10-28 | 中国地质调查局水文地质环境地质调查中心 | Multi-parameter collecting transmission instrument of geological disasters |
| CN102354432A (en) * | 2011-09-30 | 2012-02-15 | 昆明理工大学 | Landslip and debris flow early warning system based on MESH network |
-
2012
- 2012-06-13 CN CN 201210193529 patent/CN102680168B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429741A (en) * | 1974-02-28 | 1976-03-24 | Soil Instr Ltd | Soil and rock testing piezometers |
| WO2004022865A2 (en) * | 2002-09-05 | 2004-03-18 | Geosierra Llc | Seismic base isolation by electro-osmosis during an earthquake event |
| CN1532547A (en) * | 2003-03-25 | 2004-09-29 | 中国海洋大学 | Detector for solibody in-situ hole pressure and affecting depth under wave action |
| CN1790017A (en) * | 2005-12-12 | 2006-06-21 | 国家海洋局第一海洋研究所 | Multifunctional multi-channel detection rod for monitoring pore water pressure of seabed soil |
| CN201335887Y (en) * | 2008-12-03 | 2009-10-28 | 中国地质调查局水文地质环境地质调查中心 | Multi-parameter collecting transmission instrument of geological disasters |
| CN102354432A (en) * | 2011-09-30 | 2012-02-15 | 昆明理工大学 | Landslip and debris flow early warning system based on MESH network |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344378A (en) * | 2013-06-28 | 2013-10-09 | 成都汉康信息产业有限公司 | Telemetering type soil permeation water pressure measuring device |
| CN103674396A (en) * | 2013-12-06 | 2014-03-26 | 苏州科技学院 | Minitype dynamic infiltration water pressure sensor |
| CN105784256A (en) * | 2016-04-08 | 2016-07-20 | 上海恒瑞测控技术有限公司 | High-frequency substantial-vibration high-pressure-intensity measurement method and apparatus |
| CN105784256B (en) * | 2016-04-08 | 2018-06-22 | 上海恒瑞测控技术有限公司 | A kind of high frequency significantly shakes High Voltage measuring method and device |
| CN107607987A (en) * | 2016-07-11 | 2018-01-19 | 林内株式会社 | Earthquake detection apparatus |
| CN107607987B (en) * | 2016-07-11 | 2021-10-15 | 林内株式会社 | Gas kitchen ranges |
| WO2020183065A1 (en) * | 2019-03-12 | 2020-09-17 | Mato Engineering Oy | Measurement device and method |
| CN112833964A (en) * | 2020-03-26 | 2021-05-25 | 西安普特流体控制有限公司 | Transient current monitoring method and multi-channel water hammer detector |
| CN112833964B (en) * | 2020-03-26 | 2024-01-02 | 西安普特流体控制有限公司 | Transient flow monitoring method and multichannel water hammer detector |
| CN113593207A (en) * | 2021-06-18 | 2021-11-02 | 哈尔滨理工大学 | Pore water pressure online monitoring and early warning system and method based on 5G network |
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