125results about How to "Comprehensive testing data" patented technology

The invention discloses a method for detecting lane change of a vehicle based on a vehicle-mounted camera. The method comprises the following steps: firstly, initializing a read-in image, and converting the read-in image to a gray space; secondly, segmenting an sky region and a ground region of the image, and acquiring the image of the ground region; thirdly, carrying out edge detection by utilizing the sobel operator; fourthly, carrying out binaryzation by utilizing an Otsu's method; fifthly, restricting a fitting range, wherein hough transformation is restricted by the minimum fitting points, and extracting a lane line equation; sixthly, determining the type of a lane line; seventhly, classifying lane line treatment results; and eighthly, determining the current lane change situation ofthe vehicle. According to the invention, the current lane change situation of the vehicle is detected by adopting the mode of images, the existing vehicle-mounted camera of a driving school is utilized, has low cost, high practicability, diversity detection data, and has accurate and objective evaluations of lane change level for students, the equipment is simple to install, and has wide applications.

The invention relates to a video and radar based vehicle detection method and system. The method comprises the following steps: acquiring radar data of a vehicle on a to-be-detected road; acquiring a video image of the to-be-detected road; based on the radar data and the video image, matching a vehicle figure in the video image with the radar data corresponding to the vehicle on the to-be-detected road, and calculating a vehicle detection index; and superposing a calculation result of the vehicle detection index on the video image for display. According to the invention, video detection and radar detection are integrated, visualization of the radar data can be realized through superposing the data on the video image, the problem of great influences exerted by environment on the video detection can also be solved by use of the radar data, the detection data is enabled to be more comprehensive, and the detection accuracy is also greatly improved.

The invention discloses an intelligent closestool. The intelligent closestool is provided with a health detection device used for obtaining the physiological data of a user, an identity recognition module used for inputting the identity recognition information of the user, an intelligent controller used for processing the input data; the outputs of the health detection device and the identity recognition module are connected to the input of the intelligent controller, binding is conducted on the received detection data and the identity recognition information through the intelligent controller, and processing and outputting are conducted on the received detection data through the intelligent controller. According to the intelligent closestool, the detected data and the identity information of the user can be bound, the generation of data obfuscation when the detection is conducted on many people is avoided, and sending the detected data to a hospital or a family doctor platform to conduct monitoring for the user is facilitated.

The invention relates to a subharmonic detection method suitable for an APF (Active Power Filter) under a load unbalance system, relating to the field of subharmonic detection under the load unbalance system and solving the problem of inaccurate detection result because of leaving out of consideration of load unbalance and compensation condition of the active power filter when an existing harmonic detection method is used for detecting a harmonic current. The subharmonic detection method provided by the invention is capable of detecting a positive-sequence harmonic and a negative-sequence harmonic in the load unbalance system to simultaneously obtain a positive-sequence component and a negative-sequence component of the positive-sequence harmonic and the negative-sequence harmonic, and is capable of detecting any subharmonics; and meanwhile, in order to improve the compensation precision of the APF, any subharmonics are subjected to lead compensation to realize lead prediction of current instantaneous values of any subharmonics and compensate the phase delay caused by a control system, an APF output filter and the like, so that a detection result is more accurate. The subharmonic detection method is suitable for performing the subharmonic detection under the load unbalance system.

The invention discloses a device and a method for evaluating the influences of the sudden change of the working fluid temperature on the mechanical integrity of a pit shaft. The device comprises a test main body and a working platform, the working plate comprises a computer, the computer is provided with a pressure temperature control terminal, the test main body comprises a support and a kettle body, a simulated surrounding rock-cement ring-cannula assembly is arranged in the kettle body, and the kettle body is provided with a gas feeding and discharging pipeline. The method comprises the following steps: filling an annular space with cement, waiting for setting the cement to form a ring in order to form the simulated surrounding rock-cement ring-cannula assembly, changing the experiment temperature and the experiment pressure according to different downhole conditions, measuring the radial displacement of a cannula by a foil gauge, measuring the circumferential displacement of the simulated surrounding rocks by a circumferential displacement meter, and using a high pressure gas on the end surface of the cement ring to evaluate the failure or not of the sealing of the cement ring. The device and the method have the advantages of reliable principle, simplicity in operation, real simulation of the circulation of a drilling fluid, increase of the influences of the instantaneous reduction of the temperature, caused by the injection of a large amount of a low temperature fluid to the pit shaft during working, on the cannula cement ring, and provision of theoretic basis for the researches of the mechanical integrity of the pit shaft.

The invention discloses a method for a robot to initiatively search and position a smell source. The method comprises steps that firstly a used all-directional moving robot for searching and positioning a smell source is designed; an included angle between 90 degrees to 180 degrees is formed between a smoke plume finding stage robot and the robot runs along the upper wind direction; when the wind speed is smaller than a set threshold value, the robot carries out comprehensive searching based on the Z-shaped traversing method and changes the running direction when meeting a boundary; the smoke plume finding stage robot carries out swinging movement in variable step sizes and variable angles; by combining 360-degree all-directional rotation movement of the robot body, if gas is not detected, the robot carries out forward spiral-line movement in the clockwise direction; the robot body carries out 360-degree all-directional rotation movement; at a smell source positioning stage, a laser range finding sensor and a gas sensor carried by the robot are used for measuring gas concentration around a suspicious smell source so as to carry out gas source judgment, and finally the positioning is finished. Compared with the traditional smell source searching method, the provided method has high practicability and robustness.

The invention relates to a drum reaction lift type automobile axle load brake composite detecting bench and method, belongs to the field of motor vehicle detecting equipment, and particularly relates to equipment for detecting motor vehicle brake performance. The drum reaction lift type automobile axle load brake composite detecting bench comprises a movable frame (2), a fixed frame (1) and a brake force detecting device. The movable frame (2) is disposed in the fixed frame (1) in an up-down slide manner. A lifting device pushing the movable frame (2) to move up and down is disposed in the fixed frame (1). The brake force detecting device is fixed on the movable frame (2). The brake force detecting device is pushed to move up by the lifting device to allow a vehicle to be horizontally fixed, an included angle formed between the vehicle and a horizontal plane is avoided, the brake force performance is detected accurately, detecting accuracy is increased, the fixed frame transversely fixes the movable frame, the movable frame is prevented from swinging when the brake force detecting device operates, and stable and reliable operation is achieved.

The invention discloses an environment sensing system and a mobile platform using the same. The environment sensing system comprises a laser detection module; the laser detection module comprises a first laser module (21), a second laser module (22), a third laser module (23) and a fourth laser module (24); the field angle of each laser module is smaller than or equal to 120 degrees, the first laser module and the second laser module are both arranged on the front side of the mobile platform, and the fields of view of the first laser module and the second laser module are partially overlappedto detect areas in front of the left and the right of the mobile platform. According to the system, detection of a larger area around the mobile platform can be realized by using a small number of laser modules, so that redundancy and reliability of the system can be enhanced, real-time effective perception of the environment can be realized and the cost can be reduced.

The invention discloses a simulated collision measuring device for automobile driverless test. One side of a detection device is connected with a mounting structure; the interior of the mounting structure is detachably connected with a test plate; the side, away from the mounting structure, of the detection device is connected with a fixing structure; a storage box is fixedly connected to the middle of the side, away from the mounting structure, of the detection device; a traction guide rail is arranged under one side, away from the detection device, of the mounting structure; multiple pairs of adjusting structures are arranged on the two sides of the traction guide rail; the top end of each adjusting structure is connected with a clamping structure; and the interior of the clamping structure is detachably connected with a tachymeter. According to the invention, the detection device can be limited through the fixing structure, so that the detection device can be connected to a designated position more stably; the detector can be protected through the storage box, so that the detector is prevented from being affected by the outside to interfere with detection data or being impactedto fall off; and the test plates made of different materials can be firmly connected to the vertical plate through the mounting structure.

The present invention discloses an extensibility tension testing device for an electric power fitting. A multi-angle detection assembly is installed at the top end of a base, a semicircular groove is formed in the top end of a test seat, an aging detection assembly is installed at the top end of a bearing plate, a CCD camera is installed above the middle of the side face of a sleeve, and an atomizing nozzle is installed at the position, located in a drawing frame, of the bottom end of an inlet pipe; and an air quality detector is installed in the drawing frame, a storage marking assembly is installed at the bottom end of the front face of the base, and an operation frame assembly is installed in the middle of the side face of the supporting frame. According to the present invention, the multi-angle detection assembly is used for the basic detection of the extensibility tension, the aging detection assembly can be adjusted by matching the movement of the multi-angle detection assembly, the accuracy of the detection result is ensured, the storage marking assembly ensures classification and taking before detection, the detection convenience is improved, the position of the control box is adjusted by adjusting the operation frame assembly, operation is convenient, the multiple assemblies are used in cooperation, and the detection accuracy and convenience are improved in multiple aspects.

The invention relates to the field of elevator inspection and detection and particularly relates to a three-dimensional size detection method for a wheel groove of an elevator traction wheel. The invention discloses a method for detecting the three-dimensional size of a wheel groove of an elevator traction wheel. The method comprises the following steps of a, preparation before detection; b, obtaining a laser profile curve picture; c, extracting a profile curve; d, establishing a three-dimensional geometric model; e, extracting physical sign geometric data of the wheel groove; and f, defect positioning. According to the method, visual detection can be carried out under the condition of no contact with the traction wheel, 360-degree omnibearing detection is carried out on the surface size of the wheel groove of the traction wheel under the condition of not damaging the original surface of the wheel groove, and the detection data is comprehensive.

The invention provides a device and a method for detecting the heat seal strength of a container cover membrane. The device comprises a base, a first driving device, a clamping mechanism, a container positioning mechanism and a second driving device, wherein the base is provided with a chest expander; the first driving device is used for driving the chest expander; the bottom of the chest expander is connected with the clamping mechanism; the container positioning mechanism is positioned below the chest expander for clamping a container; the second driving device is used for driving the container positioning mechanism. According to the invention, the extension direction of the clamping mechanism of the device for detecting the heat seal strength of the container cover membrane is perpendicular to the container positioning mechanism so as to simulate the hand tearing motions, and detect the maximal heat seal strength value at the moment of start. The container positioning mechanism is applicable to cups with different shapes and sizes without frequent fixture replacement, is relatively wide in application, is light, simple and convenient to operate, is easy to detect, is accurate in reading, can be used for detecting the heat seal strength in the production process, and can control the heat seal stability of products. The detecting method enlarges the 15mm heat seal surface to the whole heat seal layer, so that the detection data are relatively accurate and comprehensive.

The invention discloses a smart terminal vulnerability mining and malicious behavior detection method, which relates to the technical field of smart terminals; its detection method is as follows: step 1: building a model: building a model according to the trend of network loopholes and malicious behavior; step 2: Establish analysis software: use the hidden Markov model to analyze the mobile Internet application software to be tested, obtain the similarity degree of the current software with respect to each type of software basic operation type, and form a similarity vector; Step 3: Offline test software: use offline Carry out software test in the mode of testing, perfect software according to loophole simultaneously; Step 4: online test software; Detection, and detection data is complete, easy to operate, high efficiency.

The invention discloses a rock-soil sampling device with a gravel removal function and for geological survey in the technical field of rock-soil sampling. The rock-soil sampling device comprises a rack, an insertion hole is formed in the top of the rack, a cylinder is inserted in the insertion hole, rock-soil collecting assemblies are arranged on the left side and the right side of the top of the rack, and a rotating rod is mounted at the center of the top of a top cover through the rear side. Mounting holes are formed in the left side and the right side of the top of the top cover, movable cylinders are mounted in the mounting holes through bearings, large-particle rock soil and hard soil blocks hit a buffer layer and then are blocked by a filter screen, the largest-particle rock soil and hard soil blocks are discharged through a discharging pipeline, and if the part does not meet the standard of collecting rock soil samples, the part can be directly discharged. Rock soil and hard soil blocks filtered by the filter screen fall into a collection box and are collected and detected together with fine rock soil samples, the rock soil samples can be collected in a classified mode, and after two kinds of rock soil particle samples with different diameter specifications are collected, detection data are more comprehensive and more accurate.

The invention discloses an aircraft pesticide application effect detecting method based on a laser-induced fluorescence technology. The aircraft pesticide application effect detecting method comprisesthe following steps: (1) dissolving a fluorescent dye as a tracer in a to-be-sprayed pesticide, measuring a mixed solution, and drawing a deposition quantity and photometric quantity curve; (2) setting a spraying operation route and a remote sensing aerial photography route; (3) adding a to-be-sprayed mixed pesticide into a spraying aircraft; (4) carrying out spraying operation by the spraying aircraft according to the spraying operation route; (5) acquiring fluorescence data in a pesticide spraying area by taking on a remote sensing aircraft with a multispectral lidar according to the remotesensing aerial photography route; (6) drawing the deposition quantity and photometric quantity curve, and establishing a three-dimensional light distribution spectrogram in combination with the fluorescence data acquired by remote sensing aerial photography; and (7) obtaining a deposition effect of pesticide application. The detecting method can be used for detecting a fog drop deposition condition in the pesticide spraying area within a large range and has the advantages such as high precision, good real-time property as well as convenience and high speed in detection.

The invention discloses a reverse osmosis water quality standard-exceeding detection and protection system. The system comprises reverse osmosis equipment and a controller, wherein the controller comprises a processor, a raw water analysis module, a purified water analysis module, an equipment detection module, a driving control module, a remote scheduling module, a data storage module and an early warning display module. According to the system, the purified water analysis module is arranged, starts from purified water, detects and analyzes various indexes of the purified water, and sets different treatment schemes according to different analysis results, so detection data is diversified, the corresponding measures are rich, and the standard exceeding condition of the purified water of the reverse osmosis equipment can be accurately detected; the raw water analysis module is arranged, so the troubleshooting process is simplified, and the reason why the purified water does not reach the standard can be found out more quickly and accurately; the equipment detection module is arranged to detect the performance of the reverse osmosis equipment, so influence of the reverse osmosis equipment can be eliminated, and the standard reaching rate of purified water can be improved.

The invention relates to a multi-joint robot geometric dimension accuracy calibration device and method based on a standard gauge, and belongs to the technical field of high-precision detection. The multi-joint robot geometric dimension accuracy calibration device comprises a dial indicator and a standard gauge block. The dial indicator is rigidly connected with a flange plate at the tail end of arobot. The standard gauge block is fixed to a workbench. The top end of the dial indicator fixed to the flange plate at the tail end of the robot is perpendicular to a surface to be detected by the standard gauge block, but does not make contact with the surface to be detected by the standard gauge block. The invention further provides a calibration method used for calibrating the geometric dimension of a mechanical arm of a robot through the calibration device. By adoption of the device and method, the simple dial indicator and the simple standard gauge block are used for detecting relativeerrors of the tail end of the robot, so that the influences of accumulative errors are avoided, and changes, caused by variations of the environmental temperature, of the geometric dimension of the robot are compensated; and the method can achieve detection based on analysis in three directions in a three-dimensional spatial coordinate system, so that detection data are more comprehensive.