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67results about How to "Raise the level of awareness" patented technology

Automatic driving environment perception-oriented small sample in-loop learning system and method

The invention relates to an automatic driving environment perception-oriented small sample in-loop learning system and method. Algorithm training is carried out on a target learning model based on a data training set to obtain a target detection algorithm; small sample training set training learning is carried out on the physical ECU module, and a target perception algorithm is obtained; target algorithm testing of the system is carried out through the obtained target perception algorithm. The system comprises a sample input module, an image acquisition module, an image display module, a physical ECU module and a result output module. According to the automatic driving environment perception-oriented small sample in-loop learning system and method, learning method based on small-scale datais provided, the arranged in-loop experiment simulation platform is matched with simulation software to solve the problem that large-scale data are difficult to obtain in real vehicle automatic driving environment perception algorithm development; the scene self-definition function is achieved, a large number of scene data which are difficult to achieve in actual situations are generated throughsimulation, and the experiment development safety is improved.
Owner:JILIN UNIV

Coiled tubing underground load testing tool

The invention provides a coiled tubing underground load testing tool. The tool comprises an inner cylinder and an outer protecting cylinder fixedly arranged on the outer surface of the inner cylinder in a sleeving mode, wherein an upper connector is arranged at the upper end of the inner cylinder, a tension and torque sensor is connected to the lower end of the inner cylinder in a threaded mode, and a sealing ring is arranged between the lower end of the outer protecting cylinder and the tension and torque sensor; a power module, a memory and a temperature sensor are arranged between the inner cylinder and the outer protecting cylinder, a pressure sensor is arranged on the wall of the inner cylinder, the tension and torque sensor, the temperature sensor, the pressure sensor and the memory are all connected with the power module, and the tension and torque sensor, the temperature sensor and the pressure sensor are all connected with the memory. By the adoption of the tool, the tension, torque, temperature and pressure of a coiled tubing can be measured by placing the tool underground once, the underground load of the coiled tubing can be effectively detected, the mechanical property of pipe strings can be stored and recorded, stress change of drill strings can be analyzed, and the mechanical states of pipe strings during tripping operation, fracturing, drill-polishing and well repairing can be recorded.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Energy identification method for slope earthquake damage

The invention discloses an energy identification method for slope earthquake damage. The method comprise the following steps that measured earthquake wave time interval is pretreated; empirical mode decomposition is carried out to generate a plurality of intrinsic mode functions; Hilbert transform is carried out on each intrinsic mode function to obtain a time-frequency spectrum of each intrinsicmode function; a marginal spectrum of a corresponding earthquake wave time interval is obtained according to the time-frequency spectrum of each intrinsic mode function; quantitative identification iscarried out on earthquake wave energy in a slope according to the obtained marginal spectrums; the earthquake wave energy distribution in a slope body is determined, and the position where earthquakedamage in the slope body occurs is concluded according to the earthquake wave energy distribution; according to the position where the earthquake damage in the slope body occurs, slop surface displacement and a fracture observation result are combined to conclude a damage mode of a consequent rock slope containing a weak intercalated layer. The method fundamentally reveals a failure mechanism ofthe slope under the action of earthquake, and has broad application prospects in the field of civil engineering and geological disaster prevention.
Owner:SICHUAN UNIV

Camera-based keyboard automatic assembling device for practical training

The invention relates to a camera-based keyboard automatic assembling device for practical training. The camera-based keyboard automatic assembling device for practical training comprises a workbench,a mechanical arm, a camera and a quick-change tool disc, wherein the quick-change tool disc is not less than two; the mechanical arm is arranged on the workbench; the automatic keyboard assembling device further comprises a photographing frame; the photographing frame is provided with the camera; the key disc is positioned below the camera; a plurality of keys are placed on the key disc; an emptykeyboard is arranged on the assembling disc; a product disc is used for placing the assembled keyboard; one end of a vacuum chuck is provided with the quick-change tool disc; the quick-change tool disc is arranged on a pneumatic clamping jaw; and the vacuum chuck and the pneumatic clamping jaw are movably inserted on a tool rack. According to the camera-based keyboard automatic assembling devicefor practical training, the photographing frame, the key disc, the assembling disc and the product disc are all installed on the workbench, and the key disc, the assembling disc and the product disc are all located in the working range of the mechanical arm. The camera-based keyboard automatic assembling device for practical training is simple in structure and low in cost, the position and the posture of the keys are acquired through the camera, grabbing, posture adjustment and assembly are achieved through the mechanical arm, and the camera-based keyboard automatic assembling device for practical training is suitable for assembly of scattered parts, so that operation skills of students are effectively improved.
Owner:JIANGSU HUIBO ROBOTICS TECH CO LTD

Instant positioning and map building system of unmanned sweeper

InactiveCN111664842AReasonable designSolve technical problems that cannot afford the corresponding amount of calculationNavigation by speed/acceleration measurementsElectromagnetic wave reradiationObstacle avoidanceReal-time computing
The invention discloses an instant positioning and map building system of an unmanned sweeper. The system comprises a hardware system and an SLAM algorithm, wherein the hardware system comprises a sensor assembly and a control assembly which are installed on an unmanned sweeper body, in real-time and continuous movement of the unmanned sweeper body, the SLAM algorithm constructs an environment mapthrough environment information sensed by the sensor assembly, and then control over the unmanned sweeper body is completed through the control assembly; the sensor assembly comprises a plurality ofobstacle avoidance ultrasonic sensors and laser radar, the obstacle avoidance ultrasonic sensors are evenly arranged on the outer wall of the periphery of the unmanned sweeper body, and the laser radar is installed on the front portion of the top end of the unmanned sweeper body. The control assembly comprises an embedded control panel, an industrial personal computer and a plurality of direct-current motors. The instant positioning and map building system of the unmanned sweeper is reasonable in design, the instant positioning and map building capacity of the unmanned sweeper is improved, andthe application prospect is wide.
Owner:苏州品坤智能科技有限公司

Fusing system and method based on multiple cameras and inertial measurement unit

Embodiments of the invention provide a fusing system and method based on multiple cameras and an inertial measurement unit. The system comprises cameras, an inertial measurement unit, an information processing unit and a support that are arranged on a movement carrier, wherein the information processing unit is connected with multiple cameras and the inertial measurement unit separately, receivespanoramic images collected by the cameras and IMU data acquired by the inertial measurement unit and then fuses the panoramic images and the IMU data so as to obtain a 3D model at a corresponding angle of the movement carrier, a 360-degree panoramic 3D model, movement parameters and movement estimation parameters, rebuilds a 360-degree panoramic 3D model so as to obtain a 3D rebuilding result, divides the 3D rebuilding result so as to obtain environment background 3D points and movement target 3D points, optimizes the environment background 3D points and calculates movement target 3D points, so as to realize static background panoramic modeling and detect and track the movement target. Through adoption of the system and method, the static environment modeling accuracy is greatly improved,the movement target is detected and tracked, and the movement carrier can better sense the environment.
Owner:BEIJING JIAOTONG UNIV

Defect layering device and method for surface defect detection

The invention relates to the technical field of machine vision detection. The invention particularly relates to a defect layering device and method for surface defect detection. A linear structured light imaging system comprises a linear structured light module, a camera module, a processing unit and a display module; the linear structured light module, the camera module and the display module areconnected to the processing unit; the linear structured light module is used for emitting linear structured light to a measured object, the camera module is used for carrying out image acquisition onthe measured object under the linear structured light, and the processing unit is used for receiving image information transmitted by the camera module, carrying out data processing and outputting and displaying a final image of the measured object on the display module. Compared with the prior art, the defect layering device and method for surface defect detection have the advantages that the visual perception capability of a line scanning system can be improved by utilizing a linear structured light and camera linkage control mode, very fine surface defects which can only be seen in a specific direction can be detected, and the perception level of surface defect detection is improved.
Owner:SHENZHEN ZVIT TECH CO LTD

Apparatus for demonstrating solar eclipse phenomenon

The invention provides an apparatus for demonstrating a solar eclipse phenomenon creatively. The apparatus comprises a pedestal, a rack body, and a terrestrial globe. The rack body includes a support frame, a circular horizontal track arranged on the support frame around the terrestrial globe, and a semicircular vertical track arranged on the support frame around the terrestrial globe. The terrestrial globe is arranged at the center of circle of the vertical track. An observation rod is arranged on the top of the terrestrial globe vertically. A first light-emitting source is arranged on the horizontal track; and a second light-emitting source is arranged on the vertical track. The plane where the vertical track is located is perpendicular to the plane where the horizontal track is located; and the two ends of the vertical track correspond to the two ends of the diameter of the horizontal track. The demonstration apparatus has advantages of simple structure, low manufacturing cost, easy test operation, good time saving effect, high efficiency, and visual test structure. Several kinds of tests are realized by using one apparatus; the lesson giving efficiency is high; an effect of teaching with joyful activities is realized; the cognitive level of the student is improved; the learning interest of the student is aroused; and thus students can master the knowledge of the solar eclipse phenomenon better.
Owner:文彦淋

Decomposition method for electromagnetic scattering mechanisms

ActiveCN109471084AIdentify the different ingredientsRaise the level of awarenessWave based measurement systemsDecompositionRadar
The invention relates to a decomposition method for electromagnetic scattering mechanisms, and relates to the field of electromagnetic scattering. The method comprises the steps that a target is subjected to scattering calculation to obtain a target total scattering field, the obtained total scattering field is subjected to time-frequency analysis, the distribution of different scattering mechanisms in the target scattering field is observed, a multi-resolution technology is adopted for decomposing and recognizing the scattering mechanisms, and then the scattering mechanisms and scattering characteristics are reorganized and reconstructed. By means of the decomposition technology for the scattering mechanisms, a special electromagnetic environment or a scattering source is subjected to scattering mechanism decomposition and recognition, a formation mechanism of the electromagnetic environment can be judged, different components of the scattering source are defined, a basis is providedfor the reconstruction or modification of the electromagnetic environment or the scattering source, a trailing smear interference and false scattering center formed by a complex target coupling effectcan be recognized and removed by means of the method, and the method is used for target recognition based on radar images and can significantly improve the recognition accuracy.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Vehicle-road cooperation mobile phone App system

The invention provides a vehicle-road cooperation mobile phone App system, and relates to the technical field of vehicle-road cooperation. The vehicle-road cooperation mobile phone App system comprises a cloud control platform, a client and a detection module, wherein the input end of the cloud control platform is electrically connected with the client, the input end of the cloud control platform is electrically connected with the detection module, the output end of the cloud control platform is electrically connected with the client, and the output end of the cloud control platform is electrically connected with the detection module. Danger judgment and early warning are carried out on the basis of perception, so that the perception level of a driver can be improved, the perception time of the driver is shortened, and the judgment decision time of the driver is effectively shortened; the reliability of the whole system can be improved through the vehicle-road cooperation mobile phone APP, so that the safety and reliability of the driving process can be improved; and the vehicle-road collaborative mobile phone APP system provides differentiated and personalized traffic travel information services for users, is good in user experience, high in intelligent degree, low in input cost, good in data stability and high in reliability, and can be widely applied to the traffic industry.
Owner:中路未来(北京)交通技术研究院有限公司
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