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349results about How to "Real-time recording" patented technology

Multi-sensing-data space-time synchronization method and road multi-sensing-data vehicle-mounted acquisition system

The invention provides a multi-sensing-data space-time synchronization method and a road multi-sensing-data vehicle-mounted acquisition system. The invention proposes the multi-sensing-data space-time synchronization realization method, and the multi-sensing-data space-time synchronization refers to one-to-one alignment of a plurality of paths of video data and GPS position data of a driving vehicle in a time dimension of a single frame of data and a space dimension of different acquisition devices. At the same time, the invention also discloses the vehicle-mounted system of road traffic environment multiple sensing data. The system is capable of real-time recording of multiple sensing data of a road traffic environment of the driving vehicle, such as the plurality of paths of video data and the GPS position data of the driving vehicle. The disorderly multiple sensing data acquired by the acquisition system can only be used alone because incapable of interaction with different kinds of data. However, the multiple sensing data which undergo the space-time synchronization is capable of reproducing driving scenes in a seamless transition manner so that the system is capable of providing comprehensive and objective real data and offline simulation verification data for hot researching problems such as visual scene understanding and environment cognition of unmanned vehicles and the like.
Owner:XI AN JIAOTONG UNIV

Device for comprehensively measuring linear guide rail friction force and manufacturing and mounting errors

InactiveCN103940471AEnabling Dynamic Friction MeasurementsMovement speed is stableMeasurement devicesMeasurement deviceEngineering
The invention discloses a device for comprehensively measuring linear guide rail friction force and manufacturing and mounting errors, and belongs the technical fields of measurement. The device for comprehensively measuring the linear guide rail friction force and the manufacturing and mounting errors mainly comprises a linear feeding system, a guide rail and sliding block friction force measuring device, a guide rail linearity error measuring device and a guide rail mounting parallelism error measuring device. The guide rail and sliding block friction force measuring device drives a sliding block to move through a servo motor to achieve measurement of the dynamic friction force of the sliding block at different running speed and under different loading effects, and the value of the friction force can be obtained by utilizing a pull pressure sensor. The guide rail mounting parallelism error measuring device converts parallelism errors among guide rails into internal stress of a connecting rod, and the values of the parallelism errors can be obtained through measurement of the pull pressure sensor. A standard straight gauge block is utilized by the guide rail linearity error measuring device as a reference of measurement, the linearity error of the guide rails is converted into changes of compression amount of a spring, a least square method is utilized for processing, measurement is convenient, and measurement accuracy is high.
Owner:TSINGHUA UNIV

Multi-diameter rock core dual-ring direct tension rock tensile strength tester

ActiveCN105910909AMeet the requirements of tensile strength determinationReal-time transmissionMaterial strength using tensile/compressive forcesRock coreData acquisition
The invention discloses a multi-diameter rock core dual-ring direct tension rock tensile strength tester. The tester comprises three parts such as a loading system, a pressure monitoring and data acquisition system and a loading rack and sample clamping system. The loading system comprises an upper pressure disc, a ball head, a ball seat, a tower-shaped spring, a spherical hinge end cover, an oil cylinder, a lower pressure disc, a guide sleeve and a guide plate. The pressure monitoring and data acquisition system comprises a sensor and data acquisition subsystem, a pressure digital display screen, a monitoring compression gauge and a notebook computer data acquisition subsystem. The loading rack and sample clamping system comprises a diameter-variable rock sample inner ring pressure disc, a diameter-variable rock sample outer ring pressure disc, a lower crossbeam, stand columns, stand column fixed rings and an upper crossbeam. The tester can monitor and record the whole rock sample drawing damage test process, fast determine a tensile strength quantitative value in direct drawing of a rock, has a rigorous and reliable test principle and process and fill a gap in the research field at home.
Owner:NAT INST OF NATURAL HAZARDS MINISTRY OF EMERGENCY MANAGEMENT OF CHINA

Three-phase prepayment electric energy meter system based on GPRS communication and control method thereof

The invention provides a three-phase prepayment electric energy meter system based on GPRS communication and a control method thereof. The system comprises an electric energy meter and a GPRS server, wherein the electric energy meter comprises an electric energy metering module, a GPRS module, a display module, a micro-processing module, a switch control module and a meter power supply; the GPRS module realizes the remote meter-checking and charging functions so that a user pays dues in a power supply center, and the power supply center can recharge the electric energy meter by the GPRS server; the electric energy meter periodically submits states, used electricity quantity and usable electricity quantity, and the display and control modules are used for displaying the states and the electricity quantity, controlling alarms and switching on/off a switch. The method comprises the following steps: a user firstly purchases and then uses the electricity, and a power supply part remotely checks, recharges and controls the three-phase prepayment electric energy meter. The invention realizes the random meter-checking function, the electric energy meter state monitoring function, the random electric energy meter parameter (such as the rate) updating function and eliminates the hidden danger by the user authentication.
Owner:SOUTH CHINA UNIV OF TECH

Device and method for detecting particles in air and wearable equipment comprising device

The invention discloses a device and a method for detecting particles in air and wearable equipment comprising the device. The device comprises an upper part, a lower part, at least one light emitting element and at least one light sensing element, wherein the upper part and the lower part are made of silicon base materials; a measurement chamber formed between the upper part and the lower part comprises side surfaces, an upper surface and a lower surface; the upper surface and the lower surface are parallel to each other; the side surfaces are inclined relative to the upper surface; each light emitting element is arranged in the measurement chamber and comprises a first side surface with an emitting port; the emitting port is used for emitting light which is parallel to the upper surface and faces the side surfaces; each light sensing element is positioned in the measurement chamber and is adjacent to a second side surface, opposite to the first side surface, of the corresponding light emitting element; light emitted by each light emitting element is scattered to the corresponding light sensing element by virtue of particles; each light sensing element is used for detecting a signal of light scattered to the corresponding light sensing element by virtue of particles to obtain a particle detection result.
Owner:北京洛可可科技有限公司

Frost heaving device of layered telescopic detecting soil and detecting method thereof

ActiveCN109781773ASimple structureObtaining is straightforward and accurateMaterial thermal analysisSoil typeDeformation monitoring
The frost heaving device of layered telescopic detecting soil and a detecting method thereof are disclosed. In cold area engineering construction, due to the complicated geological condition of a construction site, the monitoring of frozen soil frost heaving deformation is difficult, and frost heaving data at different depths in one area is difficult to acquire at the same time. In the frost heaving device, a plurality of casing-pipe-type monomers are successively arranged on a chassis from bottom to top, an anchor plate is arranged outside a tube body, a displacement sensor is arranged on theinner wall of the tube body, the top end of the tube body is processed with a boss, the bottom end of the tube body is processed with a groove, and the tube body of one casing-pipe-type monomer is slidably cooperated with the two adjacent casing-pipe-type monomers through the boss and the groove. According to the frozen soil type in a test area, the number of measuring points in the test area andthe distribution position of each measuring point are determined, the frost heaving amount data of the frost heaving layer of each measuring point in different time periods is obtained through the frost heaving device, and according to frost heaving amount data gathering fed back by each measuring point, a frozen soil frost heaving deformation condition in the test area is obtained. The device and the method are used for the monitoring of the frozen soil frost heaving amount in a vertical or horizontal direction.
Owner:凌贤长

Automatic inclination measurement device for precast pile with rectangular or hollow rectangular cross section

The invention discloses an automatic inclination measurement device for a precast pile with a rectangular or hollow rectangular cross section. The automatic inclination measurement device comprises a supporting mechanism, a monitoring adjustment mechanism and a man-machine interaction platform, wherein the monitoring adjustment mechanism comprises a frame-shaped protection plate; the protection plate is horizontally arranged by the supporting mechanism and provided with eight sliding grooves in the same horizontal plane; a distance measurement sensor is mounted in each sliding groove and used for measuring the distance between one point on the outer surface of the precast pile and the distance measurement sensor; every two distance measurement sensors in the eight distance measurement sensors form a group and are arranged in parallel; any two adjacent groups of distance measurement sensors are orthogonally arranged; the man-machine interaction platform comprises a display screen and an operation platform; and the operation platform is connected with the signal output end of each distance measurement sensor and used for receiving a measurement signal of each distance measurement sensor and an input horizontal position signal of each distance measurement sensor, calculating an inclined angle and an inclined direction of the precast pile and displaying the inclined angle and the inclined direction by the display screen. The automatic inclination measurement device can be used for high-precision measurement of the inclined direction and the inclined angle of the precast pile with the rectangular or hollow rectangular cross section, and is low in cost, convenient to dismount and reusable.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Building project scene type evidence storage non-tampering method and system based on block chain technology

The invention discloses a building project scene type evidence storage non-tampering method based on a block chain technology. The method comprises the following steps: step 1, carrying out authoritydivision and user authentication; step 2, accessing a hardware device of an operation site to the block chain; step 3, predefining various initial parameters about projects, tasks, logs and problem flows in engineering, and initializing a constructional engineering flow into the intelligent contract; step 4, performing data entry operation on the data representing the condition of the operation site through mobile equipment or mobile software; and step 5, performing data verification and uploading. The invention further discloses a corresponding system, computing equipment and a computer readable storage medium, and it can be guaranteed that the user truly stores and records information in real time according to project requirements in a specific time period and in a specific scene according to permission in a non-tamperable mode. Meanwhile, by utilizing the traceability characteristic of the block chain technology, the situation of user data uploading can be reviewed, and the projectprogress can be evaluated.
Owner:SHENZHEN INST OF BUILDING RES +1

Rock multivariate information collection system and test method

The invention discloses a rock multivariate information collection system and test method. The system comprises a loading mechanism, a monitoring mechanism and a protection device, wherein the loadingmechanism comprises a controller, a base, a pressure frame and a loading cone head; the monitoring mechanism comprises a pressure sensor, a displacement sensor, a camera, a CT scanning device and a sound emission sensor; data received by the sensor can be automatically transmitted to the PC end for data analysis and processing in real time; the pressure sensor and the displacement sensor can automatically record the rock test specimen deformation and stress during the loading; the CT scanning device can automatically scan the generation and the expansion of the rock test specimen cracks; thesound emission sensor automatically receives the sound emission signals and is used for determining the maximum stress previously received by the rock; the protection device is arranged on the outer periphery of the loading mechanism to achieve the protection effect. The rock multivariate information collection system can realize the automatic loading and automatic loading stopping; the measurement precision is high; information in multiple aspects can be collected; the generation and the expansion of the rock test specimen crack generation are analyzed; the real-time data recording analysis and visual effects can be realized.
Owner:SHANDONG UNIV

High-speed ADC (Analog to Digital Converter) sampled data receiving and buffering method and system based on FPGA (Field Programmable Gate Array)

The invention provides a high-speed ADC (Analog to Digital Converter) sampled data receiving and buffering method and system based on an FPGA (Field Programmable Gate Array). The system mainly comprises a data receiving delay unit, a data speed-down unit, a clock receiving delay unit, a clock processing unit, a data combination storage unit and a control unit. Inside the FPGA, the data speed-down unit is used for lowering the speed of a data signal, a clock signal uses double-edge latch data, and the data delay unit is used for performing delay adjustment on a plurality of pairs of data signals, so that simultaneous hop of the pairs of data signals is ensured; the hop edge of the clock signal is positioned in the center of the data signal; the data combination unit is used for combining and arranging widened and slowed-down data to recover practical waveform data; the practical waveform data is stored in the data storage unit. By adopting the method and the system, a plurality of paths of data signals and clock signals accompanying the data can be received simultaneously, and the functions of circular storage, pre-trigger recording, sequential read-out and the like of the data signal are realized.
Owner:NORTHWEST INST OF NUCLEAR TECH

Three-dimensional positioning method and positioning system for tower crane high-altitude operation based on binocular vision

InactiveCN109166153ARealize the 3D positioning function of aerial workPrevent and reduce safety production accidentsImage enhancementImage analysisParallaxStereo matching
The invention discloses a three-dimensional positioning method and a positioning system for tower crane high-altitude operation based on binocular vision. The positioning method comprises the following steps: S1, a binocular camera collecting a first image and a second image; S2, preprocessing the first image and the second image; S3, using the pyramid model for positioning the marker, and determining the position of the marker; S4, carrying out stereo matching on that target centers of the first image and the second image to obtain parallax information; S5, obtaining that parameters of the binocular camera; S6, calculating that three-dimensional coordinates of the target accord to the parameters of the binocular camera and the parallax information. The invention can realize three-dimensional positioning function of tower crane operation with binocular vision, can real-time monitor and record site operation information, timely and effectively supervise the use process and behavior of the tower crane, effectively control dangerous factors and safety hidden dangers in the operation process of the equipment, and prevent and reduce the occurrence of safety production accidents of the tower crane.
Owner:JIANGSU DEFENG CONSTR GRP

Intelligent vehicle insurance mobile video surveying system

ActiveCN108769624AFast interactive connectionGuaranteed to arriveFinanceClosed circuit television systemsImaging processingInterconnection
The invention discloses an intelligent vehicle insurance mobile video surveying system, mainly comprising a mobile terminal, a service terminal and a cloud service terminal, wherein the mobile terminal is provided with a vehicle insurance system therein, the vehicle insurance system comprises an operation module, a video module, an audio module, an image processing module, an audio and video synchronization module and an information feedback module, login verification is performed on user information through the vehicle insurance system in the mobile terminal, shooting and explanation are performed on a damaged part of an on-site vehicle by the video module and the audio module, then a shot video is uploaded to the cloud service terminal by the audio and video synchronization module to achieve recording, the service terminal performs real-time interface interconnection to check the site and make a loss assessment bill, feedback and explanation for the loss assessment bill can be performed through the information feedback module. In conclusion, through adoption of the intelligent vehicle insurance mobile video surveying system of the invention, the damaged part of the vehicle can besurveyed quickly, loss assessment can be completed in a remote way, and at the same time, clearness and non-distortion of video pictures can be ensured, and the damaged part can be well explained.
Owner:BEIJING JINGYOU CENTURY SOFTWARE TECH

Real-time classifying method of plant quarantine larvae

InactiveCN103279760AGood rotation invariance characteristicsReduce redundancyCharacter and pattern recognitionIdentification ratePre treatment
The invention discloses a real-time classifying method of plant quarantine larvae. The real-time classifying method comprises the following steps: establishing an SVM (Support Vector Machine) classifier; obtaining images of various plant quarantine larvae and respectively extracting characteristics to form a larva characteristic database; utilizing the larva characteristic database to train the SVM classifier; obtaining images of larvae to be detected; after pre-treatment, extracting larva image characteristics and inputting the larva image characteristics into the trained SVM classifier to be subjected to matching and recognition to obtain a classified identification result; after the treatment, adopting a larva bending posture correction method to carry out posture correction on the larvae with bent postures; and utilizing a pseudo-Zernike algorithm to extract pseudo-Zernike invariant moment characteristics of the larva images. The real-time classifying method of the plant quarantine larva disclosed by the invention can rapidly, accurately and timely identify and record larva species, and can find the plant quarantine larvae in real time, so that the real-time classifying method has no pollution to the environment and is high in recognition rate.
Owner:杭州富光科技有限公司

Environment monitoring system for communication machine room

The invention relates to an environment monitoring system for a communication machine room, which is characterized by comprising a power supply monitoring module, an environment monitoring module, a fire fighting monitoring module, a security guard monitoring module, a network communication module and a client, wherein the power supply monitoring module is connected with a power distribution cabinet to monitor data related to the power supply monitoring module; the environment monitoring module is connected to a machine room environment adjusting device to monitor data related to environment;the fire fighting monitoring module is connected to a machine room fire fighting facility to monitor data related to fire fighting; the safety guard monitoring module is connected to an entrance guardsystem to monitor data related to entrance guard; each related data is transmitted to the network communication module, is transmitted to a network through the network communication module, and enters the client. The monitoring system is fused with the management measure of the machine room, can overall monitor and manage a power supply, the environment, air conditioners, the fire fighting, the entrance guard and images of the machine room so as to achieve the monitoring aims of real-time monitoring, real-time record and real-time alarm.
Owner:SUZHOU NEW DACHENG TECH DEV
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