34results about How to "Reduce the impact of collection" patented technology

The invention relates to a high-temperature micro-nano press mark test device and method in vacuum environment, and belongs to the field of mechanical and electronic integration precise instrument. The device can be used in vacuum environment; the oxidization caused by high-temperature environment on a press head and a test specimen can be prevented; the influence of air flowing on the test specimen heating is weakened; the stable heating temperature of the test specimen is ensured; further, the test analysis on the test specimen micro mechanical properties can be started; the characteristics parameters and the like of material hardness, elasticity modulus, creep properties and thermo-mechanical coupling effects are obtained so as to study the influence rule of variable-temperature and high-temperature environment on the material micro mechanical behaviors, deformation damage mechanisms and micro tissue structure evolution; the material and product design manufacturing, service prediction and reliability evaluation are guided. The structure of the device is compact; the measurement precision is high; the application range is wide; the wide application prospects are realized in the fields of material science, equipment manufacturing, ferrous metallurgy, national defense and military, aerospace and the like. According to the test method provided by the invention, the rich material micro mechanical property test theories and technical systems are combined.

The invention discloses a polling robot for a transformer substation suitable for snowfield operation. The robot comprises a body, a data acquisition module, a master control module, a motion controlmodule, a temperature control module, a communication module and a power supply management module. The robot body is of a tracked robot trolley structure. The data acquisition module detects the surrounding environment, including a video image, an infrared temperature, a real-time position and an operating state, by means of a sensor and transfers the detected information to the master control module; the master control module is a data processing and logic control center of the robot; the motion control module controls actions of moving parts of the robot in a centralized manner; the temperature control module comprises a fan, a temperature sensor, an electric heater and a PLC; the communication module transmits data of the video image, infrared temperature, real-time position and operating state to a local background monitoring sub system by way of wireless communication. The robot provided by the invention has the advantages of being wide in temperature application range and high inroad adaptive capacity.

The invention discloses an LSTM-based microblog rumor detection and resource library construction method. The method comprises the steps of 1, crawling rumor data by using a crawler technology; Step 2, crawling non-rumor data by utilizing the crawler technology; Step 3, performing integrated storage on the crawled data, and constructing a resource library; Step 4, carrying out data labeling on themicroblogs and comments thereof; Step 5, preprocessing the acquired data, including word segmentation, stop word removal and feature extraction; And 6, constructing an LSTM-based model, and sending the context sequence and the target text into the model to obtain a classification result. According to the method provided by the invention, various data including microblog comments and microblog user information are covered, the data types are more diversified, and the influence of microblog heat on data acquisition can be better reduced. Compared with an existing technology for classifying target texts, the LSTM model based on sequence labeling can make full use of context information and the emotional tendency of comments, so that a better microblog rumor detection result is obtained.

The invention discloses an auxiliary device and a working method applicable to advance forecast of a tunnel geological radar method, the auxiliary device comprises flexible railways, a radar antenna carrying unit and a power providing unit, the flexible railways are arranged on the two sides of a geological forecast line, and is fixed on a tunnel face, the radar antenna carrying unit comprises a pulley and radar antenna clamping units, the pulley and the radar antenna clamping unit are connected through a detachable shock absorber, the radar antenna carrying unit is free to slide on the flexible railways through the pulleys after provided with the radar antenna, the power providing unit receives and controls the movement and fixation of the radar antenna carrying unit on the flexible railways according to the control instruction, and makes the radar antenna carrying unit reach the specified location of the geological forecast line.

The invention belongs to the field of medical signal collection, and specifically relates to a method and a device for extracting a synchronous breath and heartbeat signals. The device consists of a signal collection module, a signal pre-processing module and a synchronous signal extraction module, wherein the signal collection module is used for completing the collection of a breath signal and a body surface ECG(Electrocardiogram) signal; the signal pre-processing module is used for carrying out amplifying-filtering pre-processing on the breath signal and the ECG signal; the synchronous signal extraction module is used for extracting a synchronous signal according to requirements through recognizing characteristic points of the breath signal and the ECG signal, i.e., providing a time window for collecting other medical signals. According to the method and the device for extracting the synchronous breath and heartbeat signals, disclosed by the invention, a suitable time window can be set for collecting the other medical signals through the synchronous breath and heartbeat signals, the interference, which is caused by breath and heartbeats, on the other medical signals can be effectively restrained, and the method is simple and effective.

The invention relates to a traffic vehicle whistling sound source positioning system. The traffic vehicle whistling sound source positioning system comprises: a main control terminal for information collection and processing and provided with a built-in area map; an area division module for dividing the area map into a plurality of areas bordering each other, and marking the areas, wherein an information collection terminal is arranged in each marked area; a vehicle whistling sound collection module for collecting vehicle whistling sound and provided with a plurality of built-in sound collection units corresponding to each marked area, wherein each sound collection unit is coupled with the corresponding information collection terminal and collects the vehicle whistling sound in the corresponding marked area; and a whistling vehicle positioning module for positioning a whistling vehicle and provided with a plurality of built-in whistling vehicle positioning unit corresponding to each marked area, wherein each whistling vehicle positioning unit is coupled with the corresponding information collection terminal and positions the whistling vehicle in the corresponding marked area in real time. The traffic vehicle whistling sound source positioning system provided by the invention has the effect of improving the positioning accuracy of the whistling vehicle.

The invention discloses a rotary quick-opening type cabin cover of a light-small type unmanned aerial vehicle. The rotary quick-opening type cabin cover comprises a cabin cover body, rotating hinges, hinge cushion blocks, hinge supports and a plurality of 90-degree directional locks. One ends of the rotating hinges are connected with the cabin cover body through the hinge cushion blocks in a threaded mode, and the other ends of the rotating hinges are connected with a main beam of the unmanned aerial vehicle in a threaded mode. The 90-degree directional locks are fixedly mounted at the edges of the cabin cover body through threads. The rotary quick-opening type cabin cover of the light-small type unmanned aerial vehicle has the beneficial effects that (1) by using the 90-degree directional locks, flowing of air flows on the surface of the unmanned aerial vehicle is not affected, the cabin cover is attractive, and most importantly, rapid opening and locking can be achieved; and (2) by using the rotating hinges, the cabin cover and a fuselage of the unmanned aerial vehicle are integrally and rotationally connected, and losing of the cabin cover after demounting can be avoided.

A finger vein and knuckle pattern dual-mode biological characteristic acquisition system comprises a frame (1), a main control module (2), an image acquisition module (3), a red light source device (4), a near infrared light source device (5), a light source driving module (6) and a display module (7). According to the method, the influence of the ambient light on the image acquisition is greatlyreduced, the high-quality images of the finger veins and the finger knuckle patterns can be acquired, the acquired finger veins and finger knuckle patterns are consistent in posture, and the subsequent ROI positioning extraction operation is facilitated.

The invention relates to a human body curved surface modeling method, device and system, and the method comprises the steps: constructing a static three-dimensional grid map corresponding to a given region, and obtaining a scanning path; and then determining a motion path based on the scanning path and the static three-dimensional grid map, controlling the robot to move along the motion path, controlling a scanning module to perform SLAM three-dimensional laser scanning on a human body in the motion process of the robot to obtain human body scanning information, and obtaining human body point cloud data based on the human body scanning information; finally, performing human body curved surface modeling according to the human body point cloud data to obtain a human body model. According to the method, the motion path of the robot can be determined in real time, the human body point cloud data acquisition process can be better completed, the influence of a water environment on human body point cloud data acquisition is reduced to a certain extent, human body point cloud data with better quality can be obtained, the human body curved surface modeling process based on the human body point cloud data is more stable, and the obtained human body model is better.

The invention relates to a deeply-buried power pipeline detection method and device, and the method is used for detecting the position of a deeply-buried power cable, and comprises the following steps that the position range of the deeply-buried power cable is obtained, and a detection drill hole is drilled in the position range; a receiving sensor is arranged in the detection drill hole, and the receiving sensor obtains an electromagnetic field signal of the deeply-buried power cable; the position of the deeply-buried power cable is obtained according to the electromagnetic field signal. The device is based on the method. Compared with the prior art, the device has the advantages of capability of quantitatively detecting the position of the deeply-buried pipeline, flexible detection form, high accuracy, high efficiency and the like.

The invention relates to a block effect correction method, and aims to solve the technical problem that an existing correction method for inconsistent detector response cannot be suitable for non-uniformity correction of an image of a large-field-of-view high-resolution interference imaging spectrometer due to neglect of dynamic change of a detector block effect. The invention provides an interference imaging spectrometer detector block effect correction method which comprises the following steps: continuously acquiring light source data under different brightness levels of an integrating sphere through an interference imaging spectrometer, segmenting the acquired data according to a time sequence and a preset time interval, and calculating an average value image; and averaging according to interference dimensions to obtain a spatial dimension block effect curve, performing polynomial fitting to obtain an eliminated block effect smooth curve, solving a block effect correction coefficient through a ratio method, and dividing the data acquired by the interference imaging spectrometer by the block effect correction coefficient at the corresponding time to obtain an eliminated block effect interference pattern.

The invention discloses an air quality detection method. The method comprises the following steps: opening a cover and pouring cleaning liquid, so that the cleaning liquid flows to the connecting pipefrom the cover and then is sprayed to the whole gas storage tank by the spraying head for cleaning the gas storage tank, and the sewage flows out of the water outlet pipe and drips into the water tank; then pushing a piston to reach the bottom of the collecting box by using a T-shaped pull rod to connect an input pipe and an output pipe, closing a valve on an air outlet pipe and opening a valve on an air outlet pipeline, and starting a vacuum air pump to extract residual air in the air storage box; closing all valves, turning on a knob cover on the air suction pipe, pushing a T-shaped pull rod to pull upwards to drive a piston, so that the air enters a collecting box; covering the knob cover on the air suction pipe, opening the valve on the air outlet pipe, and downwardly pushing the T-shaped pull rod, so that air enters the air storage box from the air outlet pipe and is communicated with the input pipe and the output pipe on the detector. According to the method, through cooperativeuse of the solution tank, the cover, the water outlet pipeline, the connecting pipe and the spraying head, spraying, impurity removing and cleaning are conducted on the gas storage tank, the influence on next gas collection is reduced, the working efficiency can be improved, and detected and analyzed data are more accurate.

The invention discloses inverse interference filtering active wave protection equipment for PET-MR working noise. The equipment comprises a headphone earmuff (1), branch air pipes (3), a main air pipe(4) and a processing unit (5), one end of the first branch air pipe (13), one end of the second branch air pipe (14) and one end of the third branch air pipe (15) are connected with a first sound wave receiver (10), a second sound wave receiver (11) and a sound wave releaser (12) in the headphone earmuff (1) respectively. The other ends are respectively connected with a first piezoelectric sensor(51), a second piezoelectric sensor (57) and a sound wave generator (56) in the processing unit (5); active and passive modes are combined to cooperate with synchronous dual-mode work to effectivelyreduce noise, the active noise reduction work mode uses the same frequency and the same amplitude to perform opposite phase interference offset noise reduction and peak clipping noise reduction, the manufacturing is simple, the cost is low, the use and maintenance are safe and convenient, and the influence on PET collection is effectively reduced.