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 provides an intelligent video analyzing system comprising a video collecting end, a data storing end and a signal processing terminal. The video collecting end, the signal processing terminal and the data storing end are connected in sequence and can conduct data transmission in sequence. A pan-and-tilt camera is adopted by the video collecting end. The signal processing terminal comprises a video stabilizing module, a target extracting module, a target operating module, a target classifying module and an intelligent warning module. The target classifying module comprises a target data base. The intelligent warning module comprises a danger model database and a security model database. The video stabilizing module is connected with the video collecting end. The intelligent warning module is connected with the data storing module. According to an intelligent video analyzing method adopting the intelligent video analyzing system, intelligent video analysis is conducted according to the sequence of the video collecting end, the signal processing terminal and the data storage end.

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.

The invention discloses a method for establishing a trust model of a wireless sensor network. The method is characterized by comprising the following steps of: (1) abstracting interaction factors; (2)abstracting private factors; and (3) constructing an interactive trust model based on the interactive factors and a private trust model based on the private factors. By applying the trust model, a fault node, an event node and a normal node in the network can be judged. Therefore, the decision is guided, the influence of a fault node on data acquisition is reduced, and a trusted routing referenceis provided for stable, effective and accurate data transmission.

The invention discloses air quality detection equipment, and relates to the technical field of air detection. The air quality detection equipment includes a collecting box, wherein first supporting legs are fixedly mounted on the outer surface of the bottom of the collecting box. A piston is slidably connected into the collecting box; the top of the piston is fixedly connected with a T-shaped pull rod, the T-shaped pull rod penetrates through the top of the collecting box and extends to the position above the collecting box, an air suction pipe is fixedly installed at the bottom of the collecting box and communicated with the interior of the collecting box, the bottom of the first supporting leg is fixedly connected with a first supporting plate, and an air storage box is fixedly installed on the outer wall of one side of the collecting box. According to the air quality detection equipment, through cooperative use of the solution box, the cover, the water outlet pipeline, the connecting pipe and the spraying head, spraying, impurity removal and cleaning are conducted on the air storage box, the influence on the next time of air collection is reduced, the working efficiency can beimproved, and detected and analyzed data are more accurate.

The invention discloses a multi-junction solar cell structure and a preparation method thereof. The multi-junction solar cell structure comprises a substrate and a plurality of sub-cells arranged on the substrate, and the plurality of sub-cells comprise an InGaAs sub-cell, the InGaAs sub-cell comprises a base region and an emitter region which are sequentially arranged in the direction away from the substrate; the emitter region comprises a first emitter region and a second emitter region which are sequentially arranged in the direction deviating from the base region, the base region and the first emitter region are InxGaAs layers, and the second emitter region is a GaInP layer, that is, the InxGaAs layer made of the same material as the base region is adopted in the front part, connected with the base region, of the emitter region; therefore, the energy band peak of the InGaAs / GaInP heterojunction deviates from a space charge region at a PN junction between the emitter region and the base region, so the influence of the energy band peak of the InGaAs / GaInP heterojunction on collection of photon-generated carriers in the emitter region to the base region is reduced, the collection efficiency is improved, and the conversion efficiency of the solar cell is improved.

The invention discloses an automatic cleaning system and method for a camera lens. The system comprises a mounting assembly, a water spraying assembly, a cleaning assembly and a controller, the controller is fixedly mounted on the mounting assembly, the water spraying assembly is mounted on the cleaning assembly, the mounting assembly comprises a camera body, and the camera body, the water spraying assembly and the cleaning assembly are electrically connected with the controller; and the cleaning assembly comprises a connecting plate, a cleaning adhesive tape and two moving mechanisms, the two moving mechanisms are fixedly mounted on the mounting assembly, the two ends of the connecting plate are movably clamped to the two moving mechanisms respectively, and the cleaning adhesive tape is fixedly mounted on the side, close to the mounting assembly, of the connecting plate. The accuracy of the cleaning system can be improved.

The invention belongs to the power consumption detection technology field, relates to a power consumption analysis device and especially relates to an acquisition device for dynamic power consumptiondetection and an application method thereof. The device includes a power supply management circuit, a signal conditioning circuit, an ADC, a MCU, a serial port circuit, a USB interface circuit and anupper computer. The power supply management circuit provides power for an entire load of an analyzer. The signal conditioning circuit collects a current to be measured and conditions a collected current signal, and a signal output end of the signal conditioning circuit is connected to the ADC. The ADC amplifies the signal and converts an electrical signal into a digital signal, and the signal output end is connected to the MCU. The MCU reads a sampled value, converts the value into a current value and sends the value to the upper computer in real time via the serial port circuit or the USB interface circuit.

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 pulse laser-based positioning device and method, which belongs to the technical field of photoelectric tracking. The positioning device comprises: a Laser beacon source, a pulse detector, a photodetector, an image preprocessing unit, a data processing unit and a display. At least three laser beacon light sources are fixedly mounted on the object to be tracked, and simultaneously emit a laser pulse signal and a radio pulse signal. The pulse detector is used to receive the radio pulse signal and adjust the exposure time of the photodetector. The Photodetector is used to capture laser pulse signals and convert them into images. The image preprocessing unit is configured to convert the image into a data signal. The data processing unit calculates the position of thelaser beacon light source according to the data signal of the image, and finally converts to the position of the object to be tracked. The display is used to display images and position information ofthe object being tracked.

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 provides a high-speed hosiery machine. A path through which yarns pass is shortened by a yarn feeding mechanism; meanwhile, a broken needle detection device has relatively high sensitivity; furthermore, the high-speed hosiery machine is relatively simple and compact in structure and comprises the yarn feeding mechanism for supplying yarns to a weaving mechanism, and a control mechanism for controlling the weaving mechanism, wherein the yarn feeding mechanism comprises mechanical switches (5); the weaving mechanism is provided with the broken needle detection device; one end of each mechanical switch and a conductive tube of the broken needle detection device are connected in parallel to form a first parallel end which is electrically connected with one end of a power supply; the other end of each mechanical switch and a conductive rod of the broken needle detection device are connected in parallel to form a second parallel end which is electrically connected with an input end of a high voltage to low voltage signal conversion circuit; an output end of the signal conversion circuit is electrically connected with the other end of the power supply; and a signal output end of the signal conversion circuit and a driving device are respectively electrically connected with a control mechanism.

The present invention relates to a block effect correction method. In order to solve the problem of the inconsistency in the response of the existing detectors, the dynamic change of the block effect of the detectors is ignored, so it cannot be applied to the correction of the image non-uniformity of a large field of view high-resolution interference imaging spectrometer. The technical problem is solved, and a method for correcting the block effect of an interference imaging spectrometer detector is provided, which includes continuously collecting light source data under different brightness levels of an integrating sphere through an interference imaging spectrometer, dividing the collected data according to the time sequence and at preset time intervals, and then calculating Take the average image, take the average according to the interference dimension to obtain the spatial dimension block effect curve, and then perform polynomial fitting to obtain a smooth curve to eliminate the block effect, and obtain the block effect correction coefficient by the ratio method. The effect correction factor is divided to obtain an interferogram that eliminates the blocking effect.

The invention provides a heat supply pipeline leakage detectorbased on magnetism, heat, sound, electricity and humidity trenchless detection, which is used for solving a problem that time, manpower and material resources are wasted because the detection angle is single and a trenchless heat supply pipeline leakage point is not easy to quickly and accurately judge. Three metal wheels which are arranged in a triangular shape of the detector are installed on a structural member, and a pickup is connected with the metal wheels; a data acquisition center is mounted on the thin bottom plate and consists of a battery power supply, a collector assembly, a sensor assembly and a wireless routing module; the collector assembly is composed of a central processing unit, a weak magnetic collection module, an infrared collection module, an audio collection module, an electric field collection module and a humidity collection module. The sensor assembly is composed of a weak magnetic sensor, an infrared temperature sensor and a humidity sensor. The detector is advantaged in that accuracy of heat supply pipeline leakage point judgment can be greatly improved, a large amount of manpower and material resources are saved, and leakage point searching efficiency is improved.

The invention discloses a finger vein device for inhibiting sunlight interference, and relates to the technical field of finger vein devices. The device comprises a device body, and a containing cavity penetrating outwards is formed in the device body; a near-infrared lamp and a camera are respectively mounted in the device body at the top and the bottom of the accommodating cavity; the near-infrared lamp outputs infrared light, the output direction of the near-infrared lamp is perpendicular to the containing cavity, the near-infrared lamp perpendicularly points to the input end of the camera, and the camera receives the near-infrared light; and a touch head is mounted in the accommodating cavity. When finger vein recognition is carried out, the conductive spring is electrified and then contracts to pull the piston to slide so as to inflate the wrapping bag; after the distance between the wrapping bag and the finger living body is smaller than a certain threshold value, external sunlight is shielded; and then, the photosensitive sheet works to electrify the electrode wire so as to solidify the electrorheological fluid in the elastic pull tube, and the annular bottom keeps the shape under the traction and support of the elastic pull tube. Therefore, the device can greatly weaken the influence of external sunlight on finger vein image acquisition.

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.

Anti-phase interference filter active wave protection equipment for PET-MR working noise, including headset earmuffs (1), distribution tube (3), main tube (4) and processing unit (5); the first bronchus ( 13), one end of the second bronchus (14) and the third bronchus (15) are respectively connected to the first sound wave receiver (10), the second sound wave receiver (11) and the sound wave receiver (11) in the headphone earmuffs (1). The release device (12), the other end is respectively connected to the first piezoelectric sensor (51), the second piezoelectric sensor (57) and the sound wave generator (56) in the processing unit (5); combine active and passive two ways to cooperate Synchronous dual-mode operation effectively reduces noise. The active noise reduction mode uses the same frequency and the same amplitude to perform opposite phase interference to cancel noise reduction, peak clipping and noise reduction. It is simple to manufacture, low in cost, safe and convenient to use and maintain, and effectively reduces the impact on PET. collection impact.

The invention discloses image acquisition equipment with a lens protection mechanism and an acquisition method. The image acquisition equipment comprises an acquisition equipment body, and one side of the acquisition equipment body is fixedly connected with a lens sleeve; through the arrangement of a protective lens, a computing chip is arranged on one side of a board card located in the collection equipment body in the collection process, the computing chip can generate a large amount of heat in the collection process, the heat is absorbed under the action of a first cooling fin and then transmitted to a heat conduction plate, the heat conduction plate transmits the heat to a heat conduction ring through a heat conduction copper sheet. The heat conduction ring is connected with the protective lens, heat is finally transmitted to the protective lens, the temperature of the protective lens is continuously increased along with heat transmission, insects are far away from the protective lens due to too high temperature, and the continuously heated protective lens can prevent water mist from being condensed on the surface, so that the influence of external factors on collection is reduced. And the image acquisition quality is better ensured.

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 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.