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943results about How to "Informative" patented technology

Binocular vision navigation system and method based on inspection robot in transformer substation

The invention discloses a binocular vision navigation system based on an inspection robot in a transformer substation. The binocular vision navigation system comprises a robot body, an image collecting system, a network transmission system, a vision analysis system, a route planning system and a robot control system, wherein the image collecting system is arranged in front of the robot body and used for collecting environmental information images of a forwarding road and then uploads the environmental information images to the vision analysis system on the basis of the network transmission system; the vision analysis system detects a barrier in the road area of the transformer substation according to binocular image information collected by the image collecting system and inside and outside parameters of a camera; the route planning system plans a route according to environment information detected by the vision system and timely adjusts the walking routes of the robot, so that the robot can be prevented from being collided with the barrier; and the robot control system controls moving of the robot body according to the route planned by the route planning system. The invention simultaneously discloses a vision navigation method. By means of the system and the method, the self-adaptation ability of the robot to the environment is improved, the autonomous navigation function of the electric robot is really realized in the complicated outdoor environment, and the flexibility and the safety of the robot are improved.
Owner:STATE GRID INTELLIGENCE TECH CO LTD

Binocular vision navigation system and method based on power robot

The invention discloses a binocular vision navigation system based on a power robot. The binocular vision navigation system comprises an image collecting system, a vision analysis system and a path planning system, wherein the image collecting system is used for controlling a camera through collecting software to collect environment images on a forward road of the robot, and then transmitting the collected images to the vision analysis system in a wired mode, the vision analysis system is used for detecting barriers according to the binocular image information and camera inner-outer parameter information and transmitting the information to a robot control system, and the patch planning system is used for building a two-dimensional occupied map to carry out path planning according to the environment information collected by the image collecting system and timely adjusting the walking path of the robot when the barriers exist so as to prevent the robot from colliding the barriers. Meanwhile, a vision navigation method is disclosed. Collision with the barriers is avoided, the self-adaptation capacity to the environment is improved, the autonomous navigation function of the power robot is truly achieved in the outdoor complex environment, and the flexibility and the safety performance of the power robot are improved.
Owner:STATE GRID INTELLIGENCE TECH CO LTD

LED optical parameter comprehensive testing device

The invention discloses an LED optical parameter comprehensive testing device, belonging to the technical field of optical parameter measurement. The LED optical parameter comprehensive testing device is technically characterized in that one end of a horizontal base provided with a one-dimensional mobile platform is fixedly provided with an arc-shaped clamp provided with a fiber-optic probe and astandard luminosity probe, the other end of the horizontal base is fixedly provided with an arc-shaped light collector consisting of an arc fiber-optic array and a linear array CCD (Charge Coupled Device), and a rotary clamping table for holding an LED to be tested is arranged on the one-dimensional mobile platform; light information acquired by the fiber-optic probe is converted into a spectrum band by a spectrograph and then is sent into a computer, outputs of the standard luminosity probe and the linear array CCD are sent to the computer through the data acquisition unit, the computer performs corresponding processing and operation on measurement data through measurement software to finally obtain the luminescence characteristics of the LED to be tested. According to the invention, theproblem on comprehensively measuring the LED on a single measurement instrument is solved; and the LED optical parameter comprehensive testing device has the characteristics of simplicity for operation, compact structure, fastness for measurement, easiness for realization and the like.
Owner:CHINA NORTH IND NO 205 RES INST

Vehicle speed detection method based on target motion track

ActiveCN104282020ACreate a two-dimensional mapping relationshipInformativeImage enhancementImage analysisFeature extractionInter frame
The invention discloses a vehicle speed detection method based on a target motion track. The method includes the steps of target segmentation, target tracking conducted on the basis of Kalman filtering and speed calculation, wherein the combination of an inter-frame difference method and a fixed threshold value method is mainly adopted in target segmentation, and a segmentation result is acquired; target tracking conducted on the basis of Kalman filtering is divided into the processes of mass center acquisition, motion model establishment, motion target feature extraction and state vector updating, and therefore the target motion track is acquired; a speed calculation method mainly refers to track related point information acquisition, mapping relation establishment, speed calculation and speed correction, the mapping relation establishment mainly refers to conversion from pixel coordinates in an image to actual distances, in other words, the actual distance, corresponding to an actual coordinate system, of each pixel point in the image is calculated, speed calculation mainly refers to calculation of related information provided by the vehicle track in the mode that the distances are divided by time according to a speed calculation formula and a result is corrected according to the actual condition.
Owner:CHINA SHIPPING NETWORK TECH

Parking guidance system and method thereof based on release and forecast of parking index

InactiveCN102542841APublishing communicates intuitivelyAdd exponent operation unitIndication of parksing free spacesData transmissionGuidance system
The invention discloses a parking guidance system and a method thereof based on release and forecast of a parking index, and belongs to the technical field of parking management and vehicle detection of the internet of things. The parking guidance system comprises an information acquisition subsystem, a data transmission subsystem, a central control subsystem and an information release subsystem,wherein the central control subsystem comprises an information release server, an index operation unit, a database server and a management terminal; in addition, the information release subsystem comprises terminals such as an internet, a vehicle-mounted GPS (Global Positioning System), a traffic transceiver, a three-color guiding panel, a mobile phone. The method of the parking guidance system acquires the flow information of an outlet and an inlet of a parking lot, uploads the data, and computes the parking index. Finally, the computed result of the parking index is transmitted to the terminals of the information release subsystem. The parking guidance system and the method thereof can release the parking index and forecast the travel information visually and roundly, and can effectively integrate the conventional parking guiding information and other dynamic information such as real time traffic status.
Owner:北京百会科技有限公司 +2

Roadway drivage drilling induced polarization advance water probing forecasting method, device and probe

The invention discloses a roadway drivage drilling induced polarization advance water probing forecasting method, device and probe. The probe is placed in a drill hole; a power supply negative electrode B is mounted in a roadway outside the drill hole and is connected with an on-site main machine by a power supply cable; a power supply positive electrode A, a measuring electrode M and a measuring electrode N of the probe are mounted inside the drill hole, and are connected with the on-site main machine by the power supply cable and a signal cable; the power supply positive electrode A and the power supply negative electrode B outside the drill hole form the power supply cable; the on-site main machine measures an electric field change signal by the measuring electrode M and the measuring electrode N of the probe; and the electric field change signal is input to the main machine to calculate and detect the apparent resistivity and apparent chargeability of a target; the probe is propelled to repeat the steps at each measuring point to measure the apparent resistivity and apparent chargeability of each point and generate a resistivity profile map and a chargeability profile map; and the rate of change of the apparent resistivity and apparent chargeability is calculated to determine an inner geological structure taking a drilling axis as a central cylindrical space.
Owner:WUHAN CONOURISH COALMINE SAFETY TECH +1

Differential confocal-low coherent interference combination refractivity and thickness measurement method and apparatus

The invention belongs to the technical field of optical precision measurement and relates to a measurement method for the combined refractive index and thickness of differential confocal aspect and low coherence interference and a device. The method first determines the positions of a measuring objective and a reference part corresponding to the front surface position and back surface position of a measured sample respectively through differential confocal and focus principle and low coherence interference principle, and then measures the displacement distance Delta z of the measuring objective and the displacement distance Delta l of the reference part, and the displacement distances are substituted into a formula to calculate the refractive index and thickness of the measured sample. The invention first proposes the use of the characteristic that a differential confocal response curve corresponds to the focus of a micro objective in zero crossing for realizing precise focus and extends the differential confocal micro principle to the refractive index and thickness measurement field, forming the differential confocal thickness measuring principle. By integrating the differential confocal and focus principle and low coherence interference technology, the invention has the advantages of high measurement precision and strong capability of resisting ambient interference and can be applied to the detection of the refractive index and thickness of a sample.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Fowl egg crack rapid on-line nondestructive detection device and method based on acoustic characteristic

The invention discloses a device used for quick online nondestructive detection on cracks of poultry eggs on the basis of acoustic characteristic and a method thereof; the poultry egg is arranged on a supporting idler wheel; a stepping motor is connected with the supporting idler wheel and drives the supporting idler wheel; a microphone which is arranged beside the poultry egg is sequentially connected with a computer by a signal amplifier, a filter and an A/D converter; when the poultry egg rolls on a chain, different parts of the poultry egg are mechanically knocked at multi-point by a knocking rod; sound signals collected by the microphone are amplified by the signal amplifier, filtrated by the filter and converted by the A/D converter and subsequently input to the computer, thus comprehensively judging the cracking situation of the poultry eggs. The device and the method can adapt to poultry eggs with different types and different sizes, realize the classification and automatic detection of the poultry eggs during the production processing and circulation process, and can be popularized and applied to the nondestructive detection on the hardness and the maturity of agricultural products such as fruits, vegetables, and the like.
Owner:JIANGSU UNIV

Vehicle positioning and speed measuring method based on dynamic video feature of vehicle

The invention relates to a vehicle positioning and speed measuring method based on the dynamic video feature of a vehicle, belonging to the technical field of intelligent transportation and close-range photogrammetry. The vehicle positioning and speed measuring method comprises the following steps: judging the vehicle dynamic video feature size in a video image within any time quantum in one video monitoring system according to vehicle dynamic feature parameters extracted from the video image which calibrates a vehicle traveling process, and reconstructing and reducing a dynamic video feature model of a to-be-measured vehicle traveling process corresponding to each image frame; and calculating an actual position and a vehicle speed value sequence corresponding to each image frame in the to-be-measured vehicle traveling process according to a mapping relation between the dynamic variation characteristic of the image feature size of a vehicle to be measured and the actual vehicle movement parameters, and thus acquiring the actual position and traveling speed information of the vehicle. The vehicle positioning and speed measuring method is easy to realize and high in accuracy, and is applicable to the demands of various vehicles on speed measurement in a road traffic video monitoring system.
Owner:SHANGHAI JIAO TONG UNIV

Three-dimensional labeling method for part processing

The invention relates to a three-dimensional labeling method for part processing, comprising the following steps of: (1) labeling sizes, tolerances and other manufacturing information generating procedure requirements on the basis of a procedure model established in each procedure of a part processing process; (2) naming procedure content views: carrying out three-dimensional labeling on the procedure models to generate procedure contents, wherein the procedure models and the three-dimensional labeling are organized by adopting a mode of a view structure tree; and (3) setting the three-dimensional labeling of the procedure contents. The method belongs to a structurized process so that three-dimensional models have more comprehensive and specific information and downstream users have a unique data source, thereby getting rid of the phenomenon that digital control programs are compiled according to the three-dimensional models and two-dimensional pictures have nonuniform data sources; and the three-dimensional labeling method has the advantages of more visual two-dimensional function, good visualization effect and comprehensive information content; and the structurized three-dimensional labeling data can rapidly generate checking and counting data directly transmitted to systems comprising a downstream MES (Manufacturing Execution System) and the like, thereby reducing a great amount of repeated workload of process personnel.
Owner:XIAN AERONAUSTIC POWER CONTROL ENG

Test method of L3-level autopilot system of vehicle-in-loop based on virtual driving scene

The invention relates to a test method of an L3-level autopilot system of vehicle-in-loop based on a virtual driving scene. The method comprises the following steps of observing a kinematic state of avehicle, wherein the kinematic state comprises a position and a course angle, and is used for updating a vehicle pose in the virtual scene; establishing a sensory system model, wherein the sensory system model comprises four perception equipment models of vision, a millimeter wave radar, a laser radar and an ultrasonic radar; injecting virtual test scene libraries, and predefining three types oftest scene libraries including system driving scene working conditions, emergency working conditions and human-computer interaction working conditions according to an application scene of the L3-levelautopilot system; rendering in the virtual scene according to a pilot position parameter to generate a scene visualization visual angle; and recording and evaluating test data, including algorithm performance quantitative evaluation indexes and system evaluation indexes, and finally outputting comprehensive summary evaluation indexes of the L3-level autopilot system. Through the test method disclosed by the invention, the typical application scene of the L3-level autopilot system can be tested and evaluated in a limited experimental site.
Owner:ZHEJIANG LEAPMOTOR TECH CO LTD

Obstacle avoidance robot based on visual feature binding and reinforcement learning theory

The invention discloses an obstacle avoidance robot based on visual feature binding and a reinforcement learning theory. Visual feature binding and the reinforcement learning theory are utilized, and depth image information is integrated to learn priori knowledge of complex environment on the basis of a convolutional network and image matching technology; on the basis of a feature binding mechanism, a result is fed back to obstacle avoidance of the obstacle avoidance robot to make a decision intelligently, quickly, efficiently and accurately; an MNIST handwriting dataset is adopted, different control signal meanings are given to numbers 0-9 respectively, a Kinect sensor is utilized to collect RGB images with moving distance containing handwriting pictures in the complex environment, and an image matrix is created and output through gray-scale processing; image matching is performed, pictures after being matched are subjected to binarization processing and substituted into a well-trained image recognition model based on a convolutional neutral network, numbers in front of the sensor are judged finally, and corresponding control signals are transmitted to a robot control module through a host to realize intelligent obstacle avoidance.
Owner:CHINA UNIV OF MINING & TECH +2

Beef quality multi-parameter simultaneous detection method by multichannel near-infrared spectroscopy

The invention discloses a beef quality multi-parameter simultaneous detection method by multichannel near-infrared spectroscopy, belonging to the rapid nondestructive detection range of beef quality. The method comprises the following steps: first, arranging a spectral detection system comprising an 8-channel fiber multiplexer, two spectrometers with different wavelength ranges and probe units ina movable control cabinet, wherein the 8-channel fiber multiplexer is respectively connected with the spectrometers and the probe units; embedding in a production line technology to carry out on-linedetection to obtain optimum spectra data, wherein the quality detection of carcass and cut meat can be simultaneously satisfied; establishing a calibration prediction model, evaluating model effects by using relative analytical errors, carrying out model analysis on a large number of sample experimental data, respectively establishing prediction models of tenderness and water content to obtain a predicted value of each index, and then plugging the obtained predicted values into a beef multi-parameter comprehensive quality evaluation model which is established based on the detected indexes to obtain a final meat grade. According to the invention, the spectral information in the visible near-infrared band is collected, the information is abundant, the detection indexes have extensibility, and the method can be suitable for the requirement of production line detection.
Owner:CHINA AGRI UNIV

Automatic guided vehicle based on magnetic-nail map navigation

The invention relates to an automatic guided vehicle based on magnetic-nail map navigation. The automatic guided vehicle is composed of a vehicle-mounted sensor, an actuator, and a controller. The vehicle-mounted sensor consists of a magnetic ruler, an inertial navigation module, a speedometer, and an RFID reader. The actuator includes a steering system, a braking system and a power system. The guided vehicle is driven on a lane with a magnetic nail; the coordinate of the magnetic nail on the road is known and is stored into the controller; the controller uses the magnetic ruler to measure relative positions of the magnetic nail and the vehicle body on the lane, thereby realizing high-precision positioning of the vehicle. With the inertial navigation module and the speedometer, data fusion is carried out by combining the magnetic nail coordinate information; the controller can calculate an absolute position of the vehicle precisely and continuously; and the actuator is used for realizing high-precision positioning and autonomous driving. According to the invention, the automatic guided vehicle is suitable for various automatic workshops and logistics warehouses. With the vehicle, the manpower can be reduced effectively; and the workshop operation efficiency is improved. The automatic guided vehicle has advantages of high positioning accuracy, excellent control performance, low cost, high reliability, and low maintenance cost.
Owner:SHANGHAI JIAO TONG UNIV

Odor identification terminal, odor diffusion terminal and information communication system

The invention provides an odor identification terminal which comprises an odor collecting module, a characteristic extraction module and a mode identification module, wherein the odor collecting module comprises a gas sensitive sensor array which is used for collecting odor of a sample and converting chemical information of sample gas into an array signal of the sample gas; the characteristic extraction module is used for carrying out characteristic extraction on the array signal to obtain characteristic information; and the mode identification module is used for receiving the characteristic information and carrying out mode identification on the characteristic information to obtain an identification result, wherein the identification result is sample odor information corresponding to the characteristic information. The invention further provides an odor diffusion terminal and an information communication system; and according to the odor diffusion terminal and the information communication system, the problem that the requirement that the smell sense experience of users cannot be met by a traditional terminal is solved and the experience functions of the terminal are enriched and completed.
Owner:SHANGHAI WELDING ELECTRONICS TECH GRP
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