30 results about "Earthquake forecasting" patented technology

The invention relates to an earthquake predicting and pre-warning system based on ground source ultrasonic wave monitoring and analysis. Earthquake is one of the most serious disasters facing human, which is the most difficult to predict and high in burstiness and is probable to cause the most serious human and animal casualties and highest property loss. Historically, man can only monitor other than predict the earthquake. Forecasting and predicting the earthquake is a major problem facing the world and has not been broken through. The earthquake predicting and pre-warning system based on ground source ultrasonic wave monitoring and analysis comprises a signal acquiring system, a signal processing system and a predicting and pre-warning system, which are sequentially connected. Relatively enough reaction time for predicting and pre-warning the earthquake is provided, ultrasonic waves are converted into the audible sound waves for man in real time, and then a direct way for sensing ground source ultrasonic waves by man is established. The system is high in data relevance and reliability. The acceptability of a prediction conclusion is high.

The invention relates to an effective earthquake prediction method, in particular to a method in which a vibration wave / shock wave sensor or an acceleration sensor, or a sonic or ultrasonic sensor, or a sonic frequency sensor which is provided with a sensor chip and / or a microprocessor is arranged into a metal pipe that is deeply embedded in the inner earth crust, and then the received information of the vibration wave or the shock wave or the sonic wave or the ultrasonic wave or the sonic frequency of a crustal movement is fed back to a corresponding apparatus / an instrument /a computer (a central processing unit) / a display / a network system on the ground surface so as to predict the occurrence of the earthquake. The invention comprises a metal pipe, a steel wire or a steel wire rope or a hybrid material rope, a movable metal alarm hammer with a handle, a vibration wave / shock wave sensor or a acceleration sensor or a sonic or ultrasonic sensor or a sonic frequency sensor which is provided with a sensor chip and / or a microprocessor, a corresponding apparatus or an instrument or a computer (a central processing unit) or a display or a network system; the design of the effective earthquake prediction method is capable of obtaining the early movement information of the earth crust from the depth of the earth crust to the location of each layer of the earth crust, thus achieving the best seismic early warning effect.

The invention relates to an online automatic monitoring device for hydrogen of earthquake precursor. The device comprises a gas-carrying port, a sampling intake and a vent, wherein the gas-carrying port, a flow controller, a digital flow meter and a purifier are sequentially connected; after being merged with a pipeline on which the sampling intake is arranged, an output end of the purifier is connected with an input end of a separation column; an output end of the separation column is connected with a gas inlet of a hydrogen sensor; a gas outlet of the hydrogen sensor is connected with the vent; a connecting pipeline between the flow controller and the purifier is provided with the digital flow meter; and the hydrogen sensor is electrically connected with a signal amplifier which is connected with an SCM (single chip microcomputer) or an industrial computer connected with a display. The hydrogen detecting limit reaches 1 multiplied by 10<-11>L (10 ppt), which is lower than that of the existing hydrogen sensors at home and abroad by 6 order of magnitude; the sensitivity is high and the online automatic monitoring device can fully meet the requirement of earthquake detection; and the device can realize the automatic, timed and quantitative online monitoring with simple operation, is applicable to all seismograph stations, can realize the unattended operation and also can largely enhance the accuracy of earthquake forecasting.

The invention provides a monitoring data processing method for earthquake forecasting, an earthquake forecasting method and a system thereof, wherein the methods and the system relate to the field ofdisaster early warning. Through arranging an earthquake precursor monitoring point in a pre-monitoring area, the change characteristics of a surface physical field and a chemical field at the earthquake precursor monitoring point caused by internal earth activities are monitored, and furthermore measurement data which are related with the change characteristics of the surface physical field and the chemical field caused by the internal earth activities are obtained. Statistics are performed on the measurement data, and earthquake forecasting is performed on the pre-monitoring area is performedaccording to a statistics result. Because monitoring to the change characteristics of the surface physical field and the chemical field caused by internal activity of the earth is novely presented, all-weather monitoring to the earthquake and real-time data updating are realized. Through data analysis, early warning can be generated for an earthquake risk. Therefore the people in an earthquake area can perform risk avoiding measures in advance, thereby reducing causality and property loss of wide population.

The invention discloses a dynamic electricity observing system for a natural electric field. The dynamic electricity observing system for the natural electric field comprises a survey grid arrangement system and a dynamic electricity observing device, wherein the survey grid arrangement system comprises a reference electrode (2) and two or more non-polarizing electrodes (1), the dynamic electricity observing device comprises a main control module, a communication control module, a digital-to-analogue conversion module, a channel selection module and a power module, the non-polarizing electrodes (1) are connected with the input port of the channel selection module, the reference electrode (2) is connected with the analog negative electrode of the digital-to-analogue conversion module, the output port of the channel selection module is connected with the analog positive electrode of the digital-to-analogue conversion module, a digital communication port of the digital-to-analogue conversion module is connected with the main control module, the communication control module is connected with the main control module, and the power module is connected with the main control module, the communication control module, the digital-to-analogue conversion module and the channel selection module. The dynamic electricity observing system for the natural electric field can be used for unattended automatic observation and widely applied to earthquake prediction and monitoring of oilfield exploitation.

The invention relates to a method for earthquake prediction, in particular to a method which comprises the following steps: a measurement sleeve with an opening at the lower end is put in a deep well; carbon dioxide with the pressure of 0.05 to 11MPa is injected into the measurement sleeve, and gas parameters are transferred or transmitted from the bottom to the top through the carbon dioxide, thereby detecting the pressure of the carbon diode and the gas temperature of the carbon diode; radon, helium, hydrogen, sulfur and other parameters in the carbon diode can reflect the changes of the deep strata, thereby further capturing the seismic abnormal phenomena. The method has the advantages that: the use of the method for the earthquake prediction has high accuracy of the monitoring for seeking 'earthquake precursor waves'; the method is simple, the result is reliable, the signal specificity is strong and the measurement precision is high.

The invention discloses an earthquake underground fluid inspection well and a system and a method used the earthquake underground fluid inspection well to detect seismic precursor abnormal information of gap pressure diffusion coefficients, which relate to earth physics and quakeproof disaster reduction technology. The earthquake underground fluid inspection well is arranged vertical to the direction of strata, a corrosion resisting seal stainless steel sleeve is installed in the center of the inspection well in the middle, cement is used at the bottom and the top of the inspection well for fixing a sleeve, a stainless steel clamp is adopted to fix the sleeve at the position of the axial center of the stainless steel sleeve additionally, multimode fibers are buried in a gap between the sleeve and the well wall, ore particles are filled in the gap between the sleeve and the well wall, so that an even gap medium layer is formed. A special high-resolution-ratio fiber sensor collects gas pressure dynamic response signals stimulated by earthquake cutting waves, a data analyzing system is integrated through a maximum likelihood deconvolution space-time conservation method and a weight integral method chips, characteristic scale of the dynamic gap pressure diffusion coefficients related to the cutting waves is obtained through calculation, an earthquake source generated the earthquake cutting waves is carried out high-precision earthquake location, scientific decision-making data with earthquake source physical significances are provided to seismic prediction. The obtaining method of the characteristic scale of the dynamic gap pressure diffusion coefficients can be used for well wall fracture monitor of oil exploitation wells and carbon dioxide geology seal injection wells.

Short-term and impending earthquake prediction using orbiting satellites equipped with infrared wave scanners, receivers and image processors. The color densities of infrared images are categorized and applied to different seasons and latitudes to obtain an atmospheric model. The scanners detect the grayness value, from which the actual temperature can be obtained after modification of the atmospheric model. A ring of temperature decrease might appear above the cloud layer where the earthquake is breeding. Strange-shaped clouds might occur over the area. When the earthquake occurs in an inland highland area, thermal stress lines can be observed and the area where these stress lines converge is the future epicenter for an earthquake. A network of infrasonic sound measuring instruments detects infrasonic sound anomalies to improve the accuracy of predicting the time and epicenter of an earthquake. The invention can increase the rate of successful earthquake forecasting by 50%.

The invention relates to a portable radon measuring instrument calibrator. The calibrator is mainly manufactured by light materials such as aluminium alloy, the whole device is in an integrated structure, the size of the whole device is less than 0.5 cubic meters, the total amount is less than 30 kilograms, and the carrying and the transportation during outside operation are facilitated. The portable radon measuring instrument calibrator includes a cabinet, a radon case, a stirring fan, a sampling hole, a solid radon source, a minisize air pump, a drying filter, a plurality of solenoid valves, a plurality of connecting pipelines, a control circuit board, an LCD display screen, a button, and a power supply module. The calibrator is set at three concentration points of 800Bq/m<3>, 1500Bq/m<3>, and 3000Bq/m<3>, the concentration is in opening circular type automatic stabilization control by a microprocessor without the need for an external radon concentration monitoring apparatus. The portable radon measuring instrument calibrator is small in size and light in weight, and is free of complex control devices such as a computer, the calibrator can be carried to a user's site and can be widely applied to the on-site calibration of fixedly installed radon measuring instruments used in the fields of earthquake forecasting and environment monitoring.

According to the invention, the affinity of VDAC3 protein on oxalic acid or calcium salt is proved by experiments. The calcium concentration can be reduced due to formation of organic acid calcium, such as calcium oxalate and the like, and related phenomena, such as spasm and the like, can be caused by reduction of the calcium concentration and the hard and insoluble organic acid calcium salt. Continental or offshore earthquake can be predicted accurately according to inhibition behavior activities and abnormal phenomena that animals suffer from spasm, refuse food, cannot stand and are easy to capture, water birds refuse to go in the water, and seabirds fear spasm and fly towards the mainland; therefore, the invention also provides application of the VDAC3 polypeptide to earthquake prediction, and a simple, convenient and effective earthquake prediction method is established and has great benefit of preventing and reducing natural hazard in the country and even the world.

The invention discloses a monitoring data processing method for earthquake prediction, and relates to the field of disaster early warning. Earthquake monitoring points are arranged in an earthquake monitoring area; various physical quantities and chemical quantities of earthquake monitoring points are monitored; multi-component monitoring data in a first preset time period are acquired in real time, multi-component prediction data of a second preset time period in the future are predicted according to the multi-component monitoring data of the first preset time period; and the multi-componentprediction data of the second preset time period is compared with multi-component monitoring data of a third preset time period monitored in the historical earthquake process of the earthquake monitoring point so as to perform earthquake prediction and early warning on the earthquake monitoring area according to a comparison result.

The invention relates to the technical field of earthquake forecasting, in particular to an earthquake forecasting instrument manufactured by a magnetic field detection device and a magneto-dependent sensor, which comprises a box body, an ejector pin, a lever, a fixed seat and an A/D conversion circuit, and is characterized in that the box body is provided with an accommodating space, and the bottom of the box body is provided with a supporting surface extending in the horizontal direction; the fulcrum position of the lever is arranged at the upper end of the ejector pin through a miniature glass ball with a taper hole, supporting rods are arranged on two cantilevers of the lever, powerful magnetic beads are fixed to the bottom ends of the supporting rods respectively, and S poles of the powerful magnetic beads are arranged outwards; the fixed seat is arranged on the supporting surface corresponding to the strong magnetic bead on the lever when standing, so that a magneto-dependent sensor mounted on the fixed seat and the strong magnetic bead are arranged close to each other at an interval; according to the invention, by capturing the information of the change of the earth magnetic field before the earthquake occurs and reflecting and processing the information in an electric signal mode, people can know the movement of the earth crust as early as possible, so that sufficient time is gained for avoiding disasters, and the disasters brought to human beings by the earthquake are reduced.

The invention relates to the technical field of satellite image processing, and discloses an earthquake forecasting method and device based on remote sensing data, equipment and a medium. The method comprises the following steps: acquiring original remote sensing data of a target area within a first time range, and performing seismic anomaly detection on the original remote sensing data to generate initial anomaly data; performing anomaly filtering on the initial abnormal data based on a preset seismic anomaly recognition condition to generate target abnormal data; wherein the preset seismic anomaly recognition conditions comprise a space anomaly recognition condition and a time anomaly recognition condition, and the target anomaly data is used for representing anomaly caused by seismic activity; and determining at least one local area in the target area based on the target abnormal data, and performing earthquake forecasting on the local area in the second time range. According to the technical scheme, the recognition accuracy of the data anomaly of the geophysical parameters caused by the earthquake is improved, so that the accuracy of earthquake forecasting is improved.

The invention relates to a geological forecasting method for a multi-arm drill jumbo construction tunnel, and belongs to the technical field of earthquake forecasting. A plurality of detectors are embedded in the left and right side walls of the tunnel, and the detectors are connected in series and connected to the data acquisition host; a rock breaking vibration signal generated when the multi-arm drill jumbo excavates on a tunnel face is used as a detection seismic source for geological forecast, and long-time reflection seismic signals are continuously collected; seismic interference processing and inversion calculation are carried out on the collected seismic signals, a seismic reflected wave energy diagram is generated, and the geological condition in front of the tunnel face is forecasted based on analysis and interpretation of the reflected wave energy diagram. The method is ingenious in design, adopts a passive seismic source, does not need artificial seismic source excitation, effectively reduces the cost of forecasting implementation, does not affect construction, is convenient and easy to use, is high in adaptability, and is suitable for popularization and application.

The invention discloses a monitoring data processing method for earthquake forecasting and an earthquake forecasting method and system.The method comprises the steps that firstly, earthquake precursor monitoring data of different earthquake monitoring points are obtained, and earthquake precursor characteristic data of the corresponding earthquake monitoring points are obtained according to the earthquake precursor monitoring data of each earthquake monitoring point; then, acquiring a Pearson's correlation coefficient of every two earthquake monitoring points according to the earthquake precursor feature data, and constructing a feature map matrix by using the earthquake precursor feature data of the earthquake monitoring points with similar Pearson's correlation coefficients; and inputting the feature map matrix into an earthquake prediction model to obtain an earthquake prediction result. According to the earthquake monitoring points with relatively high correlation of the earthquake precursor monitoring data, and then the post-processing data of the earthquake precursor monitoring data acquired by the earthquake monitoring points with relatively high correlation are subjected to earthquake prediction model construction, so that effective monitoring data for earthquake prediction can be screened out; and the accuracy and efficiency of earthquake forecasting are improved.

The invention relates to an ultra-long distance passive source geological forecasting method for a drilling and blasting construction tunnel, and belongs to the technical field of earthquake forecasting. A plurality of detectors are embedded in the left and right side walls of the tunnel, and the detectors are connected in series and connected to the data acquisition host; strong vibration generated by an explosive source during tunnel excavation is used as a detection source for geological forecast, and seismic reflection signals are collected during blasting; and identifying the delay time of millisecond blasting for the collected signals by using a Hilbert-Huang transform method, and respectively carrying out seismic source delay time elimination on the collected signals to obtain multi-shot reflection wave seismic signals without delay time. And processing the reflected signals, generating a seismic reflected wave energy diagram and a velocity distribution diagram, and accurately forecasting geological conditions in an effective range in front of the tunnel face by combining existing geological data. The ultra-long-distance detection is achieved, the purposes of simple structure and ingenious design are achieved, and the ultra-long-distance detection device has high practical value and popularization value.

The invention relates to an earthquake forecasting method and a three-dimensional ground stress and ground inclination comprehensive detection body, and the forecasting method comprises the steps that in a drilling deep well, detection points are respectively selected at the position, 50-200 meters away from the wellhead of the drilling deep well, of the upper section part and at the bottom position of the drilling deep well to detect ground stress, and ground stress vector diagrams of the positions of the detection points are prepared;wherein the distance between the two detection points is 300 to 1000 meters; the two corresponding rays on the two ground stress vector diagrams are in a divergent shape and extend in the opposite direction of the two resultant forces, an intersection point can be found, and the intersection point is the stress source. The forecasting method has the advantages that multiple ground interference factors can be avoided by arranging the device in the drilling deep well, two kinds of information of ground inclination and ground stress are arranged in the same observation body to be comprehensively observed and analyzed, the two kinds of information are mutual evidence, and two sets of independent observation bodies are used for synchronously observing and finding the source and the direction of the ground stress at different underground depths, so that an earthquake forecast can be accurately made.

The invention discloses an earthquake forecasting system based on an earth changing magnetic field, which comprises low-frequency magnetic field front-end observation equipment and multiple levels of analysis forecasting systems, and is characterized in that each level of analysis forecasting system at least comprises an analysis forecasting server; in the adjacent levels of analysis and forecasting servers, a high-level analysis and forecasting server is connected with multiple low-level analysis and forecasting servers, and a lowest-level analysis and forecasting server is connected with multiple pieces of low-frequency magnetic field front-end observation equipment; the plurality pieces of low-frequency magnetic field front-end observation equipment are used for collecting earth low-frequency magnetic field data of different test points. The data blocks of all the measuring points in the same time period are spatially correlated, obtained spatial correlation results are stored in corresponding data structures, and the data structures further comprise time information, geological structure information, geographic information and earthquake magnitude information. And the success rate of earthquake short-term and imminent forecasting is improved.