128 results about "Aftershock" patented technology

The present invention discloses a method for overall exploration of a mature exploration area of oil-rich sags, the method including the following steps: building an area-wide seismic sequence framework for a study area based on uniform 3D seismic data of the study area; determining the spatial distribution characteristics of sedimentary reservoirs in the study area by sequence based on the area-wide seismic sequence framework; grading source rocks in the study area by sequence based on the area-wide seismic sequence framework: counting the spatial distribution characteristics of caprocks in the study area; determining a transporting system for the study area based on the unified 3D seismic data of the study area; classifying potential trap areas in the study area based on the spatial distribution characteristics of the sedimentary reservoirs and the spatial distribution characteristics of the caprocks; and deploying the overall exploration of the study area based on the classification of the potential trap areas, grading of the source rocks and the transporting system of the study area.

The invention discloses an aftershock energy control-based method for reducing working blind areas of an ultrasonic energy transducer. The ultrasonic energy transducer can be equivalent to an inductance-resistance-capacitance oscillating circuit, a method that inductance-capacitance devices are connected in series with, in parallel with or in series and parallel with two ends of the ultrasonic energy transducer is adopted to be capable of improving the inductance-capacitance parameters of a working circuit of the ultrasonic energy transducer, thus being capable of improving the freely-degenerative oscillating frequency of the ultrasonic energy transducer, realizing accelerated consumption of the aftershock energy, and reducing the working blind areas of the ultrasonic energy transducer. The method can realize control on the consumption speed of the aftershock energy of the ultrasonic energy transducer, reduce the working blind areas of the ultrasonic energy transducer, and broaden the measurable acoustic path range of ultrasonic wave applied in detection on flow rate or objection detection.

The invention discloses an obstacle detection method for a snow sweeping robot. The obstacle detection method comprises the following steps: (1) a left ultrasonic transducer, an intermediate ultrasonic transducer and a right ultrasonic transducer are arranged on the snow sweeping robot, and information of the distance between the snow sweeping robot and an obstacle is detected through the ultrasonic transducers; and (2) detection signals are processed: a, aftershock interference signals of probes of the ultrasonic transducers are processed; and b, suddenly generated strong interference signals are processed. The obstacle detection method for the snow sweeping robot can effectively inhibit influences from interference signals generated by mechanical vibration of the transducers per se, can also identify quickly moving objects and avoid false alarms probably generated by single measurement, and is good in interference prevention and high in detection accuracy. Meanwhile, in the snow sweeping process in different environments, the actual wind direction and the snow softness degree probably cause difference of such parameters as the robot running speed. The threshold value and the measurement times can be flexibly set through field tests, the demands for the accuracy and the sensitiveness of obstacle detection in different environments can be met and the adaptability is excellent.

The invention provides a Copula theory-based main shock and aftershock joint vulnerability analysis method. The method comprises the following steps of: selecting main shock and aftershock seismic records to form main shock and aftershock sequence seismic oscillations; establishing a numerical value finite element analysis model of a structure; inputting the main shock and aftershock sequence seismic oscillations to carry out dynamic and time-historical analysis, selecting maximum deformation and residual deformation as seismic demand parameters, and establishing a probability demand model, under the action of the main shock and aftershock sequence seismic oscillations, of the structure on the basis of a distribution strip method; establishing a joint probability seismic demand model, based on the maximum deformation and the residual deformation, of the structure on the basis of a Copula theory; establishing a main shock and aftershock joint vulnerability function of the structure; andgenerating a main shock and aftershock vulnerability hook face of the structure by adoption of a Monte Carlo simulation method. According to the method, continuous influences, on the structure, of the main shock and the aftershock are considered, and a main shock and aftershock vulnerability analysis result on the basis of the maximum deformation of the structure and a main shock and aftershock vulnerability analysis result on the basis of the residual deformation of the structure are combined by utilizing the Copula theory, so that the safety, under the action of the main shock and aftershock sequence seismic oscillations, of the structure can be comprehensively and quantitatively evaluated.

The invention relates to the technical field of damping supports, and particularly relates to a bidirectional rolling shaft multi-stage damping support. The problems that in the prior art, a lead coredamping support has difficulty in recovering deformation when a lead core is thick, internal damping distribution is nonuniform, and the damping effect cannot continue to be played in aftershock aresolved. The bidirectional rolling shaft multi-stage damping support comprises a first damping rolling shaft, a second damping rolling shaft, a lead core supporting column, a first connecting plate, asecond connecting plate and a third connecting plate, the lead core supporting column, the first damping rolling shaft and the second damping rolling shaft are arranged in a mounting space formed by the first connecting plate, the second connecting plate and the third connecting plate separately, when the lead core supporting column support fails, the first damping rolling shaft and the second damping rolling shaft roll to support the first connecting plate and the second connecting plate, when the support is used, the lead core supporting column absorbs energy generated by an earthquake firstto perform first-stage damping energy consumption, and in the aftershock, the first damping rolling shaft and the second damping rolling shaft perform second-stage damping energy consumption.

The invention relates to the technical field of bridge detection monitoring, in particular to a bridge state detection device and detection method. The bridge state detection device comprises an acquisition device, a communication unit and a monitoring unit and is used for receiving acquired data and forming a judging result according to the acquired data. Compared with the prior art, the bridge state detection device and detection method has the advantages that under an aftershock state after load passes through a bridge, the torsional vibration frequency of each plate beam is acquired according to the accelerated speed in the horizontal direction, the fact that the torsional vibration frequency of each plate beam is close to the torsional vibration frequency of each plate beam under an independent stressing state is judged through the monitoring unit, and the facts that a damage phenomenon occurs in a hinged gap and force transfer can not be achieved are judged according to the fact that the torsional vibration frequency of each plate beam is close to the torsional vibration frequency of each plate beam under the independent stressing state. By adopting the method, the traffic closing condition is not needed, the stress state of the hinged gap can be measured in real time, and then the transverse connection state of the plate beams can be obtained in real time.

The invention provides a car reversing radar system with low aftershock and a method for emitting the signal of the car reversing radar with low aftershock, which comprises a receiving and emitting sensing unit, an ultrasonic emitting circuit, an ultrasonic receiving circuit, a processing unit, an alarming unit and a storage unit, wherein, the receiving and emitting sensing unit comprises at least one piezoelectric ceramic piece; the processing unit can emit a control signal and a pulsing signal, wherein, the control signal has continuous positive and negative amplitude phases, and the initial amplitude of the pulsing signal has the same phase as the end amplitude of the control signal, which causes the receiving and emitting sensing unit to output an ultrasonic signal with low aftershock.

The invention relates to a sensor, in particular to a novel ultrasonic wave sensor which comprises a hollow metal outer case. One end of the metal outer case is covered by a matching layer in a sealing mode. The inner side of the matching layer is provided with piezoelectric bimorphs in parallel in a pasted mode. The piezoelectric bimorphs in parallel are formed in the mode that the two opposite electrode faces of the two piezoelectric bimorphs are respectively pasted on two faces of a metal substrate, the other two electrode faces of the two piezoelectric bimorphs are electrically connected, and a common connecting end of the two piezoelectric bimorphs and the metal substrate are respectively connected with a connecting terminal. The novel ultrasonic wave sensor is simple in structure, high in sensitivity, and small in aftershock.

The invention discloses a special shock-absorbing supporting device for a pipeline elbow. The device comprises a sleeve and a vertically-arranged stand column; the sleeve is fixedly mounted on the ground and has an upward opening; one end of the stand column is fixedly connected below the elbow; a flange shock-absorbing device is arranged in the middle of the stand column; the bottom end of the stand column is inserted in the sleeve and is in clearance fit with the sleeve; and a rubber shock-absorbing pad is arranged at the bottom of the sleeve. With the special shock-absorbing supporting device for the pipeline elbow, the flange shock-absorbing device is arranged in the middle of the stand column for first-time shock absorption, shocks of the pipeline elbow above are received, aftershock fluctuations are continuously downwards transferred, repeated vertical and transverse shock absorption is realized through second-time shock absorption by the aid of clearance fitting between the stand column and the sleeve and third-time shock absorption by the aid of the rubber shock-absorbing pad at the bottom of the sleeve, the good shock absorbing effect is realized, and the device is applied to the field of shock-absorbing devices.

The invention discloses new controlling method for the sensibility and residual vibration of an ultrasonic sensor. The sensibility and residual vibration are precisely controlled by changing the pre stress of a piezoelectric chip. A novel ultrasonic sensor is provided, which essentially comprises a metallic casing, a piezoelectric chip, a circuit board, a lead-out pin, a pressure block for controlling the stress of the piezoelectric chip, a silencing cotton layer for absorbing the residual vibration of the sensor, and a silica gel filler. In the circuit board, a threaded through hole is provided. In the through hole, an adjuster is provided. The lower end of the adjuster is movably connected with the upper end of the pressure block. The invention can accurately control the sensibility and residual vibration of a product by simply changing the production equipment and without changing the raw materials, so that the product can meet requirements from different customers, and the applicability and the acceptance rate of product can be improved. The invention saves cost, improves productivity, and the most important benefit with the invention is that the performance consistency of the adjusted product is almost up to 100%.

The invention discloses a replaceable connecting beam with a double-security mechanism. The replaceable connecting beam comprises a replaceable member and concrete connecting beams at the two ends ofthe replaceable member, the replaceable member comprises a metal damper, a limiting anti-buckling restrained supporting device, a replaceable member connecting plate and a metal damper connecting plate. According to the replaceable connecting beam with a double-security mechanism, under the action of a large earthquake and a principal earthquake, the metal damper centralizes plastic damage, underthe action of a super-large earthquake or a large aftershock, when the metal damper fails and there is not enough time to replace the metal damper, therefore, the plastic damage is centralized into the replaceable member all the time, and other parts of the structure can be protected against unrepairable damage.

The invention discloses a thin bed identification method of seismic prospecting, and belongs to the field of oil-gas geophysical prospecting engineering. The method comprises the following steps that (1) Hilbert transform is carried out on a seismic post-stack signal to obtain an instant phase of the seismic post-stack signal; (2) a time-phase relation diagram of the seismic post-stack signal is obtained according to the instant phase; (3) wavelet transform is carried out on the basis of the time-phase relation diagram of the seismic post-stack signal to obtain a time-scale relation diagram; (4) an abnormal point is extracted on the basis of the time-scale relation diagram; and (5) information of a reflected wave signal is obtained on the basis of the abnormal point. According to the method provided by the invention, seismic phase data can be re-explained by utilizing Hilbert transform on the basis of a phase criterion, further a position identification research can be carried out, the thin bed identification capability can be improved effectively, and interference of aftershock in a result can be eliminated to certain extent.

The invention discloses a rescue aircraft task allocation method (TLP) based on a two-stage planning algorithm in earthquake rescue. The method comprises an earthquake rescue simulator and a two-stage planning rescue algorithm (TLP). The earthquake rescue simulator simulates the conditions of affected people in a ground medical area and an affected area in an earthquake. Task distribution of the rescue aircraft is optimized online through the TLP algorithm, and the optimization comprises three parts of rescue task level planning, rescue aircraft level planning and rescue aircraft position distribution. The first part is used for completing clustering of rescue tasks and task distribution of rescue aircrafts. The second part is used for carrying out rescue target sequence planning on each task group and the corresponding rescue aircraft group based on a particle swarm algorithm, and the third part is used for carrying out position distribution on each rescue aircraft after the tasks are completed, so that rescue work in the next rescue period is conveniently carried out. The TLP algorithm maximizes the total number of successfully rescued people under the condition that the occurrence of earthquakes and aftershocks has randomness and unpredictability, and the rescue effect is improved.

The invention relates to a portable on-site aftershock alarm device for earthquake salvation, which mainly comprises a pendulum bob spike shaft, a pendulum bob, and an inverse ratio rod, a fixed ring contact and an alarm circuit that are arranged on a pendulum shaft and the like. The swinging of the inverse ratio rod of the pendulum bob leads the inverse ratio rod and the peripheral fixed contacts to generate collision, which is taken as alarm reference, so as to achieve that the alarm for aftershock is sent automatically, and the invention belongs to the closing type automatic alarm technology of a swinging trigger circuit. When the pendulum bob is static, the alarm device does not give the alarm, and in the state, the second falling of the collapsed buildings ruins does not happen without foundation; and if the pendulum bob starts to swing and the alarm device to give the alarm, the swinging of the ground surface represents the premonitor of the aftershock or the coming of small aftershock. The alarm device is suitable for being carried owing to the small size and can be more suitable for being matched to use on the site of earthquake salvation as a direct current battery is used as well as the alarm device can be arranged on the collapsed and flat ruins after earthquake or in the gap near the ruins and can automatically and continuously give the alarm by a plurality of times without manual operation during the process.

The invention discloses a seismic intensity rapid correction and drawing method. The method comprises the following steps: generating an initially evaluated seismic intensity thematic map; generatinga primarily corrected seismic intensity thematic map; obtaining the range of the meizoseismal region and the long-axis trend of the intensity circle; establishing an envelope line; obtaining a highestintensity circle; obtaining a seismic intensity dynamic correction result; generating a dynamically corrected seismic intensity thematic map; and generating a final seismic intensity thematic map. According to the invention, automatic generation of the seismic intensity thematic map is realized; multi-source disaster data is fully applied; preliminary correction is performed on the intensity circle through a data fusion technology; the influence of aftershocks and the like on the intensity circle is fully considered, and meanwhile, the intensity circle is further dynamically corrected throughthe self-adaptive technology; the automation degree is very high, manpower and material resources can be greatly reduced while the reliability of the intensity circle is improved, and the efficiencyis very high; and the earthquake intensity thematic map can be rapidly generated after an earthquake happens.

The invention relates to the technical field of damping supports, in particular to a sliding ball multi-stage damping support. The problems that in the prior art, according to a lead core damping support, deformation recovery is hard when a lead core is thick and large, internal damping distribution is not uniform, and the damping effect cannot continue to be brought into play when an aftershock happens are solved. The sliding ball multi-stage damping support comprises damping balls, a lead core supporting column, and a first connecting plate and a second connecting plate which are arranged from bottom to top in a spaced mode, and an installing space is formed between the first connecting plate and the second connecting plate, the lead core supporting column supports the first connecting plate and the second connecting plate, and the damping balls are arranged inside the installing space for supporting the first connecting plate in a rolling mode when supporting of the lead core supporting column loses efficacy. When the support is in use, the lead core supporting column absorbs energy generated by an earthquake at first for primary damping and energy dissipation, when the lead core supporting column loses efficacy, the damping balls drive the first connecting plate and the second connecting plate to slide horizontally in a staggered mode, energy generated by aftershocks is absorbed, and secondary damping energy dissipation can be performed.

The invention provides a silicon foaming adhesive composition, by taking the total mass of the silicon foaming adhesive composition as a reference, the silicon foaming adhesive composition has the following ingredients: 50-75% of polydimethylsiloxane, 15-40% of dimethicone, 5-20% of silica micropowder, 0.5-2% of silicone resin, 1-10% of coupling agent, 0.5-3% of 4,4'-oxydibenzenesulfonyl hydrazide, 0.5-3% of crystalline hydrate. The invention also provides a preparation method of the silicon foaming adhesive composition, a silicon foaming adhesive prepared by the silicon foaming adhesive composition and an ultrasonic sensor containing the silicon foaming adhesive. The silicon foaming adhesive has large porosity and uniform aperture distribution, the ultrasonic sensor by using the silicon foaming adhesive has the advantages of small aftershock and low impedance.

The invention discloses a method and a device for detecting an obstacle. The method comprises the following steps: monitoring an aftershock time, comparing the aftershock time with a preset time threshold value, determining whether the obstacle exists in a short distance or not, sequentially transmitting two ultrasonic waves with opposite vibration directions, judging whether an echo signal is received or not, accurately calculating a distance between the obstacle and an ultrasonic sensor according to the echo signal if the echo signal is received, and determining that the obstacle is very close to the ultrasonic sensor and is located in a very small detection blind area if not. The obstacle in the area close to the ultrasonic sensor can be accurately detected, so it is ensured that a parking system can accurately detect the obstacle close to a vehicle, thereby intelligent parking is achieved, and the method and the device are of great significance to reducing traffic accidents and protecting life safety.

The invention discloses a prefabricated assembly-type seismic toughness reinforced concrete frame structure and a construction method. The frame structure is constructed on the basis of concrete and comprises a reinforced concrete column, an anchor rod, a reinforced concrete beam, a pull rod and a damper. According to the prefabricated assembly-type seismic toughness reinforced concrete frame structure, a hole is formed in each of the reinforced concrete column and the reinforced concrete beam, a disc spring group is installed in each hole, the disc spring groups are fixedly connected with beam and column joints through the pull rod and fixedly connected with column and foundation joints through the anchor bolt, densified stirrups or spiral stirrups or exterior steel plates are arranged atthe ends of the reinforced concrete beam and the reinforced concrete column correspondingly, the damper is arranged on the lower side of the beam end, the periphery of the gaps of reserved grooves ofthe reinforced concrete column and a concrete foundation is filled with an elastic scalable material, the ductility of the seismic toughness frame structure is high, the aftershock residual displacement is low, an aftershock main structure basically keeps elastic, and the prefabricated assembly-type seismic toughness reinforced concrete frame structure can be widely used in building structures.