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

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 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 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 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 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 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 discloses a navigation system and a navigation map updating method and device. The method includes the following steps: collecting video information in front of a vehicle to obtain a video image, and obtaining position information of the vehicle; performing image processing on the video image to identify Traffic signs in the video image, and calculate the position of the identified traffic signs based on the video image and the position information of the vehicle; obtain the external environment information of the vehicle, judge the validity of the identified traffic signs according to the external environment information, and generate corresponding Judgment result: according to the judgment result and the recognized traffic sign and its position, the navigation map is processed accordingly. The method is helpful to improve the navigation data, accelerate the update of the navigation map, make the navigation traffic sign data more accurate and effective, and reduce the burden and time of data collection of the map manufacturer.

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.