34results about How to "The data is accurate and valid" patented technology

The invention relates to a wheel-rail vertical force continuous measurement method based on rail strain, comprising the following steps: a. one section of rail above a single sleeper is taken as an elastomer for measuring wheel-rail vertical force; b. two groups of appropriate strain outputs on a neutral axis of the elastomer are selected, slopes of all straight lines which are corresponding to different longitudinal action point positions of a sensing region of the elastomer and determined by the strain outputs under two sleeper support reference states are obtained on the same vertical force strain output plane; c. the strain output of passing through the sensing region of the elastomer of wheels is measured, the longitudinal positions of the action points of the vertical force are identified, negative values which are corresponding to the slopes obtained in the step b are taken as combination factors, the combined strain output is obtained by combining the selected two groups of strain outputs in the step b, and the combined strain output is unrelated with the sleeper support state; and d. the vertical force is obtained by the combined strain output of the effective measurement region. A measurement device comprises an elastomer selection unit, a strain selection and parameter obtainment unit, a longitudinal position identification and strain combination unit and an output unit which are connected.

A rapid inspection system for a power line corridor based on laser scanning guidance comprises a flight platform and a ground monitoring system. The flight platform comprises a fuselage structure, a power system and a flight control system. The fuselage structure further carries a laser scanner and a wireless data transmission module. The flight control system comprises a processing control unit and further comprises an inertial navigation unit and a satellite navigation unit which are connected with the processing control unit. A rapid inspection system for the power line corridor based on laser scanning guidance comprises the steps that three-dimensional point cloud resolving is conducted according to laser scanning data, position data and attitude data, three-dimensional point cloud ofthe power line corridor is obtained, and the relative position relation is obtained through extracting of the power line point cloud; adjusting information of the next flight path is planned, the adjusting information is compared with a set clearance threshold value, and clearance hidden danger points are judged; hidden danger point data are sent back to the ground monitoring system in real time;the hidden danger point data are sent to a hidden danger guiding terminal; and the hidden danger guiding terminal displays the hidden danger point data, and a navigation track for advancing for hiddendanger trouble shooting is formed.

The invention belongs to the field of correlation techniques of flexible electronics and discloses an anti-tensile and anti-flexing performance test system for flexible electronics. The system comprises a control module, a data acquisition module and a testing module, wherein the testing module comprises two fixed mandrel units and two bent mandrel units in a sealing manner, and each fixed mandrel unit has fixing and stretching functions on the flexible electronics, has the freedom degree in the X direction and can be provided with a tension sensor; each bent mandrel unit can realize radius bending of a given mandrel, has freedom degrees in X and Y directions and can be provided with a pressure sensor and a CCD camera. Through combination of the four mandrel units, tests of constant tension, bending pressure, testing temperatures as well as flexing resistance of complicated curved surfaces such as C type, S type, G type and the like with adjustable bending radii, bending speeds and bending angles can be realized, anti-tensile performance test can be realized, and the defects that an existing device can only perform simple C type test and test data are not accurate due to non-quantitative test conditions are effectively overcome.

The invention discloses a navigation system and a navigation map updating method and device. The method comprises the following steps of: collecting the video information ahead of a vehicle to acquirea video image, and acquiring the location information of the vehicle; processing the video image to identify a traffic sign in the video image, and calculating the location of the identified trafficsign according to the video image and the location information of the vehicle; acquiring the external environmental information of the vehicle, determining the validity of the identified traffic signaccording to the external environmental information, and generating a corresponding determination result; and correspondingly processing the navigation map according to the determination result and the identified traffic sign and its location. The method helps to improve the navigation data, accelerates the updating of the navigation map, makes the navigation traffic sign data accurate and effective, and can reduce the burden and time of the map manufacturer data collection.

The invention belongs to the technical field of environment monitoring, and discloses a dust raising station auxiliary monitoring device which comprises a base plate and an annular plate. A detection box is fixedly installed in the middle of the interior of the annular plate, a drawing plate is movably connected to the lower end of the interior of the detection box in a clamped mode, and exhaust pipes are fixedly installed at the upper ends of the two sides of the detection box. Exhaust fans are fixedly mounted on the outer sides of the two exhaust pipes, a hinge cover is fixedly mounted at the top of the detection box, a sealing disc is fixedly mounted in the middle of the bottom of the hinge cover, and an illuminance sensor is fixedly mounted in the middle of the bottom of the sealing disc. The purpose of accurate detection is achieved by arranging the detector, the detection box, the illuminance sensor and the like, ambient air needing to be detected always uniformly enters the cavity by opening the hinge cover and utilizing the flowing of natural air, and a bent exhaust pipe, the hinge cover capable of being closed and covered and a drawing plate are arranged.

The invention relates to a method for measuring audible noise of a transformer substation, which comprises the following steps: S100, at least three noise measuring probes are arranged in a measuringarea. S200, all the noise measuring probes acquire noise information in the measuring area and obtain a measurement result. S300, the measurement result is analyzed to acquire a change rule of environmental noise from the measurement result, and invalid data in the measurement result is removed according to the change rule to obtain effective data of the audible noise of the transformer substationwithout environmental noise interference. According to the method, audible noise data of the measuring area and test points can be acquired, the audible noise data can be analyzed and compared, the invalid data can be removed, and the effective data of the audible noise of the transformer substation can be obtained. The method can effectively remove invalid data of the audible noise of the transformer substation, thereby solving the problem that the test result of the audible noise of the transformer substation in a prior scheme is inaccurate.

The invention provides a parallel article recommendation method, device and equipment and a storage medium, and relates to the technical field of information. The method comprises the steps of constructing a user structured model according to the historical browsed articles of the user; obtaining at least two article recommendation algorithms corresponding to the user according to the user structured model and at least two preset recommendation algorithms; obtaining a recommended article list corresponding to each article recommendation algorithm from the article to be recommended through at least two article recommendation algorithms; and according to the preset weight values of the at least two article recommendation algorithms, selecting a predetermined article from each article recommendation list to mix and generate a final recommended article list corresponding to the user. According to the present invention, by adopting the parallel hybrid parallel article recommendation method,it is guaranteed that the recommended article data set has the recommendation advantages of all article recommendation algorithms, the defect of single item recommendation is overcome, and the recommended article data is more accurate and effective.

The invention discloses a 3D four-wheel positioning detection method based on homography matrix optimization, and relates to the technical field of vehicle maintenance. The method comprises the following steps: building the relation between coordinate systems, and finally obtaining the relation between a world coordinate system and an image pixel coordinate system; calibrating a monocular camera to obtain a relationship between a homography matrix and internal and external parameters of the camera; solving and optimizing the homography matrix to obtain internal parameters of the camera, then obtaining a rotation matrix, and optimizing the rotation matrix; calibrating a binocular camera to obtain a relative position relationship between the two cameras; optimizing the internal parameters, the external parameters and the relative position relationship between the two cameras; and carrying out direction cosine solution on the optimized rotation matrix so as to obtain four-wheel positioning parameters. According to the method, a monocular and binocular calibration mode is adopted, the solving process is optimized on the basis of two basic principles of a perspective mode and a spatialvector, and all parameters of a wheel positioning system are accurately measured.

The invention discloses a detection device for the inclination of a horizontal well, which comprises a sliding rod, a connecting rod is fixed on the upper end of the sliding rod, a connecting rod is hingedly connected to the two side walls of the middle part of the sliding rod, and the movable end of the connecting rod is installed with an adjusting rod. The lower part of the sliding rod is provided with a clamping groove, the annular base is threaded with the clamping groove, and the inner side of the base is provided with a conical surface matching the hinged end of the connecting rod; it also includes two pressure sensors, the The pressure sensor is fixed on the sliding rod and communicates with an external controller through a wire passing through the connecting rod. A spring is installed on the connecting rod, and the movable end of the spring is connected with the pressure sensor. The invention is simple and quick to operate, can quickly detect the inclination of the oil well, and because of the adjustable performance of the connecting rod, while improving the applicability, the problems of complex structure and inconvenient use of the previous measuring tools are solved.

The invention relates to the field of gyroscopes, and concretely relates to a gyroscope testing system and method. The test efficiency is improved, the gyroscope delivery efficiency is further improved. The method comprises the following steps: respectively acquiring data values of X-axis gravitational acceleration, Y-axis gravitational acceleration and Z-axis gravitational acceleration of a groupof gyroscopes in a normal working mode and a test mode through a control module; calculating an X-axis gravitational acceleration difference value, a Y-axis gravitational acceleration difference value and a Z-axis gravitational acceleration difference value corresponding to the two modes; checking whether the difference value is within a preset driving data range simulated by the test mode; if so, returning test qualification to an upper computer by the control module; and if not, returning test disqualification to the upper computer by the control module.

The invention relates to the technical field of plug valves, and particularly relates to a plug valve durability test fixture. The plug valve durability test fixture comprises a mounting rod assembly,a mounting seat, a rotating rod assembly and a driving mechanism for driving the rotating rod assembly to reciprocate up and down along the mounting seat, wherein the rotating rod assembly comprisesa rotatable transmission rod body, the mounting rod assembly comprises a mounting rod body with a bearing, the bottom of the mounting rod body with the bearing is fixedly connected with a sleeve head,and the top of the mounting rod body with the bearing is arranged at the bottom of the transmission rod body in a sleeving mode through an elastic mechanism; and the elastic mechanism comprises an elastic piece for driving the mounting rod assembly to move upwards. Compared with the prior art, the elastic mechanism is arranged to counteract the self-weight of the mounting rod assembly, so that the pressure value of the driving mechanism acting on the rotating rod assembly is an actual pressure value, the durability test data of the plug valve is more accurate and effective, and the problem ofthe influence of the self-weight in the past is solved.

The embodiment of the invention discloses a data storage method and device, electronic equipment and a computer readable medium. According to one specific embodiment, the method comprises the steps that to-be-stored data information is received, and the to-be-stored data information is user identity information to be stored in a target database; performing data verification on the to-be-stored data information to generate a verification result; in response to the verification result, representing that the to-be-stored data information passes data verification, and storing the to-be-stored data information into a data table of the target database; in response to the verification result, representing that the to-be-stored data information does not pass the data verification, generating abnormal prompt information; and displaying the exception prompt information on a display interface, so that a target user modifies the to-be-stored data information. According to the embodiment, in the data storage process, the accuracy and integrity of the data are guaranteed.

The invention belongs to the timepiece technical field and provides a high-pressure test cylinder, a test machine and a test method. The high-pressure test cylinder of the present invention comprisesa cylinder body; an inner cavity for accommodating a test workpiece is formed in the cylinder body; a top cavity for accommodating a cylinder cover is formed at the top of the cylinder body; a water inlet and a water outlet which are communicated with the inner cavity are formed in the cylinder body; an observation hole which is communicated with the inner cavity is formed at the side edge of thecylinder body; the side edge of the cylinder body is provided with a monitoring device for monitoring the test workpiece through the observation hole; and the monitoring device includes a transparentblock for blocking the observation hole and a camera for taking the image of the test workpiece through the transparent block. According to the high-pressure test cylinder, the inner cavity can be sealed in an omnidirectional manner through the cylinder cover and the transparent block in the monitoring device; and the cylinder body can bear great pressure and can provide a deep and super-high pressure test environment for a diver's watch. The test machine provided by the invention can simulate the diver's watch under a high-depth and super-high pressure condition and can detect the use condition of the diver's watch.

The invention provides a high-precision positioning and installation device for a common-plate flange air duct. The installation device includes a positioning suction cup, a distance measuring sensor, a sounder, a remote control and a control module; It is used to fix the installation device on one end of the pipeline; the distance measuring sensor is used to measure the distance from the four walls of the pipeline to the device; the sounder is used to issue detection prompts to the user, and The distance measurement value of the sensor is converted into a sound signal in real time; the remote control is connected to the control module for controlling the installation device; the control module is used for controlling each part of the installation device to work. The invention can carry out precise leveling and positioning on the inner wall of the common plate flange before installation, which greatly improves the installation accuracy and installation efficiency of the ventilation pipe.

The invention discloses a method for intelligently inspection substation equipment by using a robot, which comprises the following steps: arranging RFID tags at the detection points of power equipment, wherein positioning information is stored in each RFID tag; respectively storing the information corresponding to each RFID tag into an upper control host and a lower control machine on an inspection robot; installing an RFID reader-writer on the inspection robot; and after the detection is started, enabling the lower control machine to control the inspection robot to walk to the detection points of the power equipment along the predetermined paths according to the instruction of the upper control host, thereby recognizing the RFID tags by using the RFID reader-writer and finishing the information acquisition of the power equipment. By combining the RFID technology with the communication technology and the automatic control technology, the method successfully solves the problems of positioning and orientating of the inspection robot in the walking process. The method can ensure that the inspection process is convenient and reliable, the acquired data is accurate and effective, and workers can conveniently monitor the working conditions of the field and the operating conditions of the equipment remotely, thereby realizing the purpose of remotely monitoring remote areas and unattended stations.

The invention discloses a surveying and mapping data acquisition method and system based on geospatial information data, and the method comprises the steps: building a surveying and mapping region according to coordinates, and obtaining a transverse surveying and mapping graph of a to-be-measured region according to the built surveying and mapping region; according to the set surveying and mapping height, longitudinal surveying and mapping partition maps are obtained with the longitudinal direction as the surveying and mapping direction; dividing the obtained transverse surveying and mapping graph of the to-be-measured area into a plurality of longitudinal partition graphs of the transverse surveying and mapping graph according to the longitudinal surveying and mapping direction, and performing image comparison on the longitudinal partition graphs of the transverse surveying and mapping graph and the corresponding longitudinal surveying and mapping partition graphs one by one, if the image similarity between the longitudinal partition map of the transverse surveying and mapping map and the corresponding longitudinal surveying and mapping partition map is not less than the set image similarity, determining that the image data acquisition is qualified; and completing image surveying and mapping. Through the technical scheme provided by the invention, the acquired data can be identified during data acquisition, and the acquired data is ensured to be accurate and effective.

The invention belongs to the field of correlation techniques of flexible electronics and discloses an anti-tensile and anti-flexing performance test system for flexible electronics. The system comprises a control module, a data acquisition module and a testing module, wherein the testing module comprises two fixed mandrel units and two bent mandrel units in a sealing manner, and each fixed mandrel unit has fixing and stretching functions on the flexible electronics, has the freedom degree in the X direction and can be provided with a tension sensor; each bent mandrel unit can realize radius bending of a given mandrel, has freedom degrees in X and Y directions and can be provided with a pressure sensor and a CCD camera. Through combination of the four mandrel units, tests of constant tension, bending pressure, testing temperatures as well as flexing resistance of complicated curved surfaces such as C type, S type, G type and the like with adjustable bending radii, bending speeds and bending angles can be realized, anti-tensile performance test can be realized, and the defects that an existing device can only perform simple C type test and test data are not accurate due to non-quantitative test conditions are effectively overcome.

A rapid inspection system for a power line corridor based on laser scanning guidance comprises a flight platform and a ground monitoring system. The flight platform comprises a fuselage structure, a power system and a flight control system. The fuselage structure further carries a laser scanner and a wireless data transmission module. The flight control system comprises a processing control unit and further comprises an inertial navigation unit and a satellite navigation unit which are connected with the processing control unit. A rapid inspection system for the power line corridor based on laser scanning guidance comprises the steps that three-dimensional point cloud resolving is conducted according to laser scanning data, position data and attitude data, three-dimensional point cloud ofthe power line corridor is obtained, and the relative position relation is obtained through extracting of the power line point cloud; adjusting information of the next flight path is planned, the adjusting information is compared with a set clearance threshold value, and clearance hidden danger points are judged; hidden danger point data are sent back to the ground monitoring system in real time;the hidden danger point data are sent to a hidden danger guiding terminal; and the hidden danger guiding terminal displays the hidden danger point data, and a navigation track for advancing for hiddendanger trouble shooting is formed.

The invention provides a high-precision positioning and mounting device for a common-plate flange air pipe. The mounting device comprises a positioning suction cup, a distance measuring sensor, a sounder, a remote controller and a control module. The positioning suction cup is adsorbed on the surface of a pipeline by using an electromagnetic suction cup and is used for fixing the mounting device at one end of the pipeline; the distance measuring sensor is used for measuring the distances from four wall surfaces of the pipeline to the device; the sounder is used for sending a detection prompt to a user and converting a sound signal in real time according to the distance measurement numerical values of the distance measuring sensor; the remote controller is connected with the control module and is used for controlling the mounting device; and the control module is used for controlling each part of the mounting device to work. By means of the device, the inner wall of a common-plate flange can be precisely leveled and positioned and then installed, and the installation precision and the installation efficiency of the ventilation pipeline are greatly improved.

The invention discloses a 3D four-wheel alignment detection method based on homography matrix optimization, and relates to the technical field of vehicle maintenance. The steps of the invention are: establishing the relationship between coordinate systems, and finally obtaining the world coordinate system and image pixel coordinates The relationship between the systems; the calibration of the monocular camera, the relationship between the homography matrix and the internal and external parameters of the camera; the solution and optimization of the homography matrix, and then the internal parameters of the camera are obtained, and then the rotation matrix is ​​obtained and optimized; Calibrate the binocular camera to obtain the relative positional relationship between the two cameras; optimize the internal parameters, external parameters and the relative positional relationship between the two cameras; solve the direction cosine of the optimized rotation matrix to obtain the four-wheel alignment parameters . The invention adopts the method of combining monocular and dual-objective positioning, based on two basic principles of perspective and space vector, optimizes the solution process, and accurately measures each parameter of the wheel alignment system.

The invention discloses an isolated satellite surge current detecting method which comprises the following steps of 1, clamping a satellite positive bus-bar cable bundle by means of a Hall current clamp; 2, connecting the output end of the current clamp with a PC through a signal high-speed sampling device; 3, programming upper computer software by the PC end, and processing and storing a received current signal; and 4, through a man-machine interaction interface, performing comparative analysis, curve real-time displaying, alarming and the like on a surge current value by the PC end. The isolated satellite surge current detecting method has advantages of simple operation, comprehensive, accurate and effective data. The man-machine interaction interface is utilized for realizing higher visuality of a detecting result. A Hall sensor is utilized for performing isolated sampling on the current signal of the satellite positive bus-bar, thereby ensuring isolation between a satellite and ground, and realizing high safety and high reliability. Furthermore the method ensures high accuracy and high safety in satellite surge current detection.

The invention discloses a method and device for collecting audio data of abalone activity, which comprises the following steps: collecting dissolved oxygen data of an abalone pond, storing and analyzing them, and increasing oxygen in the pond water when the dissolved oxygen data is lower than that required for abalone activities; collecting And save the underwater audio data; separate the abalone activity audio data. The invention realizes the accurate and effective collection of long-term abalone activity data, expands the depth of abalone research, and reduces the workload of scientific researchers.

The invention provides a bionic sebaceous gland and artificial skin, the bionic sebaceous gland and artificial skin comprise a shell and hair fibers, a conveying pipeline is arranged in the shell, the conveying pipeline is filled with the hair fibers, and gaps formed by the hair fibers in the conveying pipeline are filled with lubricating oil; gaps formed by hair fibers in the conveying pipeline are gradually reduced and then gradually increased in the conveying flow direction; the bottom of the shell is of a permeation structure and used for sucking lubricating oil from the environment. A plurality of through holes are formed in the top of the shell and used for discharging lubricating oil to the outside. Through the gaps between the inner wall of the conveying pipeline and the hair fibers and the gaps between the adjacent hair fibers, lubricating oil can be pulled to be conveyed in the reverse gravity direction along the conveying flow. Meanwhile, due to the fact that the scaly outer skin of the hair fiber is provided with gaps, the surface tension of the lubricating oil is small, and the gaps can play a role in assisting the lubricating oil to be transported along the transportation flow direction against gravity due to the infiltration effect.

The invention relates to a wheel-rail vertical force continuous measurement method based on rail strain, comprising the following steps: a. one section of rail above a single sleeper is taken as an elastomer for measuring wheel-rail vertical force; b. two groups of appropriate strain outputs on a neutral axis of the elastomer are selected, slopes of all straight lines which are corresponding to different longitudinal action point positions of a sensing region of the elastomer and determined by the strain outputs under two sleeper support reference states are obtained on the same vertical forcestrain output plane; c. the strain output of passing through the sensing region of the elastomer of wheels is measured, the longitudinal positions of the action points of the vertical force are identified, negative values which are corresponding to the slopes obtained in the step b are taken as combination factors, the combined strain output is obtained by combining the selected two groups of strain outputs in the step b, and the combined strain output is unrelated with the sleeper support state; and d. the vertical force is obtained by the combined strain output of the effective measurementregion. A measurement device comprises an elastomer selection unit, a strain selection and parameter obtainment unit, a longitudinal position identification and strain combination unit and an output unit which are connected.

The invention discloses an ocean current instrument observation frame, which belongs to the field of ocean instruments and solves the problems that the existing ocean current instrument observation frame is inconvenient to mount and is likely to get loose, convenient ocean current observation can not be carried out, and the ocean current instrument can not be continuously powered. The ocean current instrument observation frame comprises floats, a cross bracket and an instrument fixing cylinder, wherein the end parts of the cross bracket are connected with the four floats; the bottom of the cross bracket is provided with the instrument fixing cylinder; the inner wall of the instrument fixing cylinder is provided with a plurality of fixing lugs; the inner part of the instrument fixing cylinder is an instrument mounting room; and under effects of the floating force of the floats, the cross bracket floats on the water surface, a solar photovoltaic panel installed on the top of a floating plate and a rotating shaft and a blade installed on the bottom of the cross bracket and connected with a generator set can convert solar energy and ocean current energy into electric energy for providing power for the ocean current instrument, thereby achieving energy conservation and environmental protection; and besides, the instrument fixing cylinder is installed below the cross bracket, observation on the ocean current by the ocean current instrument is facilitated, the instrument is effectively protected, and the data acquired by the instrument can be ensured to be accurate and effective.

The invention discloses an abalone activity audio data acquisition method and device. The method comprises the following steps that dissolved oxygen data of an abalone pool are collected and are stored and analyzed, and when the dissolved oxygen data are lower than the demands of abalone activities, oxygenation is carried out on pool water; underwater audio data are collected and stored; and abalone activity audio data are separated out. By means of the method and device, long-time accurate and effective acquisition of abalone activity data is realized, the abalone research depth is increased,and the workload of researchers is reduced.

The invention belongs to the technical field of mechanical equipment detection equipment or instruments, and particularly relates to dynamic inspection equipment for an engine mechanical overspeed protection device. The equipment comprises a variable frequency motor, a coupling, a lubricating oil system, a mechanical transmission structure and a speedometer, the coupling is used for connecting a variable frequency motor shaft and an engine overspeed protection device, the speedometer is used for detecting the rotating speed of the coupling, and the coupling is a rigid coupling. According to the dynamic inspection equipment for the mechanical overspeed protection device of the engine, the capacity of repairing a diesel engine in a factory can be improved, the repairing quality of the mechanical overspeed protection device is guaranteed, and the stability and safety of the mechanical overspeed protection device of the engine are improved. Compared with equipment and the technical scheme,while automatic testing is achieved, detected data are more accurate and effective, meanwhile, the personnel cost is low, the detection time is greatly shortened, the maintenance efficiency of maintenance manufacturers can be effectively reduced, and the maintenance cost is reduced.

The invention belongs to the field of geothermal geochemical exploration, and particularly relates to a concentration and enrichment device and method for rare gas in soil gas and application of the concentration and enrichment device and method. The concentration and enrichment device comprises a main bottle body; the bottle opening is formed in the top of the main bottle body and is sealed by a rubber plug, and a glass long tube is inserted into the rubber plug; the three-way pipe fitting is arranged at the side part of the main body bottle body and is communicated with the main body bottle body; the outer tank is used for containing the main bottle body and the refrigerating fluid, so that the main bottle body is soaked in the refrigerating fluid; and the outer tank is connected with the three-way pipe fitting. Aiming at rare gas in soil gas, the concentration and enrichment device can be used for removing interference, ensuring that the loss of collected gas components is reduced, reducing errors, and effectively enriching and concentrating target components, so that the detection precision is improved, and accurate effective data of the gas components are obtained.

The invention provides a water level and flow monitoring system and method for an urban drainage pipe network, wherein the system comprises a monitoring terminal which is used for monitoring water area information, a telemetering communication terminal which is in communication connection with the monitoring terminal, a communication unit which is in communication connection with the telemetering communication terminal, a database server which is in communication connection with the communication unit, a system display platform which is in communication connection with the database server, and a power supply equipment which is connected with the telemetering communication terminal. Compared with the prior art, the water level and flow monitoring system and method for the urban drainage pipe network have the advantages of being high in adaptability, high in accuracy, low in time delay, easy to install and capable of achieving automatic early warning.