714 results about "Rain gauge" patented technology

The present invention is directed to a sensor network that includes a number of sensor units and a base unit. The base station operates in a network discovery mode (in which network topology information is collected) in a data polling mode (in which sensed information is collected from selected sensory units). Each of the sensor units can include a number of features, including an anemometer, a rain gauge, a compass, a GPS receiver, a barometric pressure sensor, an air temperature sensor, a humidity sensor, a level, and a radiant temperature sensor.

The invention relates to a rainfall distribution and dynamic measurement method based on a big-data mobile communication network. The method comprises the following steps: (1) constructing a central server which is connected with a mobile terminal base station and establishing a data communication link among mobile terminals, base stations and the central server; (2) collecting transmitting power of the base stations and power, received by the base stations, of corresponding mobile terminals in real time; (3) establishing one-to-one correspondence relationships between the mobile terminals and some base stations and calculating the path attenuation of the communication link between each mobile terminal and the base station; (4) by taking the transmitting power of the base stations as a reference, calculating attenuation of signals of the mobile terminals caused by non-meteorological factors such as free space propagation loss, buildings, vegetation, unset obstacles and the like; obtaining rain-induced attenuation values of mobile terminal signals in unit distance; establishing correlative relationships between the signal attenuation characteristic of the mobile terminals and rainfall intensity distribution; carrying out fusion analysis with professional meteorological data such as a rain gauge, weather radar and the like to obtain areal distribution of rainfall and dynamic changes of rainfall.

The invention provides a single image rain removal method based on a convolutional neural network and relates to image processing. The method includes the following steps that firstly, manual rain addition is conducted on clean and clear images through a screen blend model to form corresponding rain images, and an image library is built; secondly, the system structure of the convolutional neural network is determined; thirdly, corresponding rain image blocks and rain-free image blocks with the size being 64*64 are obtained from the first step and serve as training samples for training; fourthly, the single image blocks are obtained in an overlapped mode and input in a trained rain removal filter system to obtain the corresponding rain-free image blocks, and weighted averaging is conducted on the image blocks to obtain rain-free images. The method solves the problem that a single image rain removal method based on dictionary learning is long in consumed time, achieves rain removal and guarantees definition of background images, the rain-free images can be quickly obtained after the rain images are input, and the requirement of embedded equipment for real-time processing is met.

The invention provides a freeway changeable speed limit control system and a method in a rainy environment. The changeable speed limit control system comprises a vehicle detector, a rain gauge, a changeable speed limit signboard, and an overspeed snapshot system, wherein the vehicle detector, the rain gauge, the changeable speed limit signboard, and the overspeed snapshot system are respectively connected with a traffic controller, the traffic controller is used for receiving traffic flow detected by the vehicle detector and rainfall detected by the rain gauge, adjusting and finding out dynamic bottleneck road sections based on the traffic flow detected by the vehicle detector and the rainfall detected by the rain gauge, successively working out optimized speed limit values of the road sections by quadratic programming of nonlinear programming, showing the optimized speed limit values on the changeable speed limit signboard, and controlling the overspeed snapshot system to snap pictures according to the optimized speed limit values. The freeway changeable speed limit control system and the control method in the rainy environment can coordinate limited speeds of the road sections on the basis of guaranteeing safe operation of a freeway based on rainfall strength and traffic flow density features, respectively detect the rainfall strength and the traffic flow density through the rainfall detector and a coil detector, and achieve overspeed dynamic snapshot of the road sections, thereby guaranteeing safe and high-efficient operation of the freeway.

The invention discloses a mud-rock flow early alarm system. The system consists of field monitoring equipment (1), a transmission network (2), a monitoring centre server (3) and a monitoring centre client (4), wherein the field monitoring equipment (1) consists of an intelligent remote measuring rain gauge (11), a mud-rock flow infrasound alarm (12), an ultrasonic mud level meter (13) and image monitoring equipment (14); the monitoring centre server (3) consists of a rainfall information receiving and processing system (31), an infrasound information receiving and processing system (32), a mud level information receiving and processing system (33) and an image receiving and processing system (34); and the monitoring centre client (4) consists of an information display unit (41), a data analysis unit (42) and a threshold configuring unit (43). The mud-rock flow early alarm system integrates rainfall monitoring, mud level monitoring, mud-rock flow infrasound monitoring and image monitoring together, and expresses according to the integration of the information, of rainfall, mud level, infrasound and image, which shows that the mud-rock flow is coming or comes to achieve the effect of signal compensation and comprehensive judgment.

The invention discloses a single image fine rain removal method based on a depth convolutional neural network. Firstly, through carrying out background texture structure extraction, nonlinear mapping and rain line area restoration on an inputted rain graph by an initial rain removal network, an initial clear rain-free image is finally obtained; the initial clear rain-free image and the original image are inputted to a fine rain removal network with a single convolutional layer at the same time, more details in the background area are thus restored, and a high-definition rain removal image is finally obtained. Through adopting a caffe framework, the initial rain removal network and the fine rain removal network are trained, parameters of each convolutional layer are obtained precisely, fine rain removal processing is carried out on a rain image, and compared with the traditional convolutional neural network rain removal method, the method of the invention can obtain a higher-quality rain-free image, the practicability is strong, and the method can be widely applied to more scenes.

The invention concerns a gyrometer-type device, comprised in a substrate (2, 50), and characterized in that it includes:

• • at least one mass (3, 3′, 31, 32, 33) defining, idle, a plane, arranged at a distance from an axis (Z, H, H′) of rotation contained in this plane, this mass being able to be caused to vibrate in this plane, perpendicular to the axis of rotation (Z),
  • at least two connecting arms to connect said mass to said axis of rotation;
  • means forming, for at least one of the arms, at least one connection with the substrate for a rotation around said axis of rotation,
  • at least one strain gauge, for detecting the rotational movement.

The invention relates to an irrigation early warning device, in particular to an irrigation early warning device based on evaporation capacity and an operation method thereof. The irrigation early warning device comprises an evaporation capacity measuring device, an udometer, a controller and an alarm device, wherein, the evaporation capacity measuring device, the udometer and the alarm device are respectively connected with the controller which is used for receiving evaporation signals of the evaporation capacity measuring device and rainfall signals of the udometer and controlling the operation of the alarm device. The invention can be used no matter in a small parcel of rice field or a large parcel of rice field; due to adoption of automatic water replenishing design, time and labor are saved and the operation is simple and convenient; accumulated evaporation capacity is recorded automatically, and the measuring precision is high; dynamic irrigation early warning can be implemented according to rainfall conditions.

Embodiments relate to a real-time vehicle management and monitoring system and method. The system comprises at least a vehicle subsystem, a control subsystem, a dispatch subsystem, a maintenance subsystem, and a rider subsystem. As illustrated, the vehicle subsystem comprises a vehicle, a production tracking device, a global positioning system device, a rain gauge device, a steering wheel sensor device, at least one camera, at least one display; and an engine diagnostic system. The system further comprises the control subsystem communicating (wirelessly for example) with at least the vehicle system, the dispatch subsystem, the maintenance subsystem and the rider subsystem.

The invention provides an automatic calibration device and calibration method for a strain gauge. The automatic calibration device adopts a grating displacement sensor as a standard, a stepper motor for driving, a controller for controlling, reading and processing data, and a closed-loop system is completely adopted, so that full-automatic calibration and detection are realized for the strain gauge, wherein the output accuracy of the grating displacement sensor is 3 mum, so the detection accuracy is guaranteed; a horizontal base is provided with two V-shaped guide rails which are parallel to each other, so that a movable flame can not deflect or tilt when running with load, and the loading capacity and the application range can be improved; and a high-precision ball screw can be guaranteed to transfer enough torsion accurately during the movement process. With the adoption of the method, continuous measurement for multiple positions can be realized, the work efficiency of measurement can be improved, a calibration equation adopts a simple cubic equation, so that the calibration process is greatly simplified, a zero-returning step eliminates an accumulated error caused by long-term work of a controller, and further, the detection accuracy of the method is improved.

The invention discloses a single image rain line removal method based on the deep convolutional neural network. The method comprises steps that firstly, a rain image is decomposed into a low frequencyreference layer and a high frequency detail layer through utilizing guided filtering; secondly, a target function is modified according to the knowledge of the image processing domain, the high frequency detail layer of the rain image is inputted into the designed deep learning network architecture, and mapping between the high frequency detail layer of the rain image and the high frequency detail layer of a sharp image corresponding to the rain image is learned; and lastly, the rain-removed high frequency detail layer outputted by the network and the low frequency reference layer of the rainimage are superposed to obtain the rain-removed sharp image. The method is advantaged in that the detail part of the rain-removed image is remained when rain lines of a single image are removed, andthe image sharpness degree is greatly improved.

The invention provides a vehicle speed control system for an expressway main line. The system comprises a multichannel traffic environment comprehensive detector, divided lane LED variable speed-limit signs and a traffic guidance control system, wherein the multichannel traffic environment comprehensive detector, the divided lane LED variable speed-limit signs and the traffic guidance control system are arranged on the expressway main line road segment, the multichannel traffic environment comprehensive detector comprises an integrated communication module, a rain gauge, a fog and snow light-transmitting gauge, an anemoscope and a traffic flow detector, and the rain gauge, the fog and snow light-transmitting gauge, the anemoscope and the traffic flow detector are connected with the integrated communication module. The integrated communication module outputs data to the traffic guidance control system through a unified communication interface, and the traffic guidance control system is combined with speed limiting restraining conditions of divided lanes, optimally provides dynamic speed limiting values or lane-closing running instructions of the divided lanes, and outputs the values and instructions to the divided lane LED variable speed-limit signs. The vehicle speed control system has the advantages of optimally providing the dynamic speed limiting values or no-entry instructions of the divided lanes on basis of comprehensively considering the rain, snow, fog, wind and traffic congestion conditions, and ensuring the running safety on the expressway main line under the complex traffic condition.

A wireless sensor apparatus for determining and reporting the status of an electrical wire, said sensor apparatus comprising: an electrically insulated housing; a non-contact electrical energy harvesting device, said energy harvest device disposed within said housing, said energy harvesting device comprising an electric current detector and voltage detector; an electric power source, said power source operatively connected to said energy harvesting device; a microcontroller, said microcontroller operably connected to said power source; a mechanically rigid base, said base operably connected to said housing and to said at least one strain gauge, said at least one strain gauge operably connected to said power source and to said microcontroller; a wireless data transmission antenna, said wireless data transmission antenna operably connected to said power source and to said microprocessor; a visual indicator, said visual indicator operably connected to said power source and to said microcontroller.

The invention provides a tipping-bucket rain gauge with a dual-steady state turning-board mechanism, and relates to a hydrological instrument. The tipping-bucket rain gauge comprises a rain-holding opening component, a drainage funnel, a tipping-bucket, a bracket, a tilt angle adjusting device, a level adjusting device and the like. The tipping-bucket rain gauge is characterized in that: the dual-steady state turning-board is arranged above a fixed water diversion plate; the dual-steady state turning-board is formed by connecting a left clipping plate, a right clipping plate and a moving water diversion plate, wherein the lower end of the moving water diversion plate is provided with a water diversion plate shaft which is supported by the dual-steady state turning-board and connected to the upper end of the fixed water diversion plate; two sides of the dual-steady state turning-board are provided with left and right limitation rods which are fixed on the bracket respectively; and the center of gravity of the dual-steady state turning-board is above the shaft center lines of the water diversion plates, and a tension spring is arranged between the moving water diversion plate and the fixed water diversion plate. The automatic turning-board mechanism can automatically change the water-turning delay angle of the turning-board, shorten the rainfall switch delay time of the water-holding bucket, reduce the measurement error of the turning-board and further improve the measurement accuracy of the instrument.

Disclosed is a runoff rain gauge 100 which includes a collector tube 104, soil infiltration resistance medium 108, a runoff resistance flow element 113, a standard rain gauge 102, and runoff collection tube 114. Precipitation enters the collector tube 104 and is divided to flow into the infiltration medium 108 and runoff collection tube 114 via flow element 113. Total precipitation is read in standard rain gauge 102, runoff in tube 114, and soil infiltration in medium 108 is calculated by the difference between total precipitation and the runoff.

The invention relates to a rainwater drainage control device used for controlling the initial rainwater drainage of a rainwater collecting device. The rainwater collecting device comprises a water collecting unit, a water storing unit, a rainwater feeding pipe transferring rainwater from the water collecting unit to the water storing unit, a rainwater collecting pipe communicated with the water storing unit and a drainage pipe arranged between the feeding pipe and the collecting pipe. The initial rainwater automatic drainage control device controlled by the rainfall comprises an raingauge, an electric valve arranged on the inlet of the rainwater collecting pipe and a controller which controls the opening and closing of the electric valve on the rainwater collecting pipe according to the comparative result between the measured rainfall by the raingauge and the expected drainage so as to realize the automatic control to the initial rainwater drainage. The initial rainwater automatic drainage control device controlled by the rainfall also comprises a device used for regulating the expected drainage and a device used for setting the non-drainage rainfall intervals so as to effectively reduce the drainage, and a level sensor used for leading the controller to control the level of the water storing unit according to the signal sent by the level sensor.

The invention discloses a rainfall field reconstruction method by integrating microwave link, disdrometer, rain gauge and weather radar: selecting microwave link, disdrometer, rain gauge and weather radar to synchronously observe areas covered and make disperse lattices; making space matching and time matching over data of rainfall intensity synchronously observed by disdrometer, rain gauge and weather radar and making interpolation by inverse distance interpolation to draw lattice data; reconstructing rainfall field by lattice data of rainfall intensity synchronously observed by microwave link, disdrometer, rain gauge and weather radar: evaluating autocorrelation coefficient and cross-correlation coeffi-cient of data of rainfall intensity synchronously observed by microwave link, disdrometer, rain gauge and weather radar by recursion of estimated value in time domain to further determine variance of microwave link, disdrometer, rain gauge and weather radar; estimating and determining best weight of four kinds of data of rainfall intensity by minimum variance to realize rainfall field reconstruction.

The invention discloses a mud-rock flow early warning system, which mainly comprises five to eight mud water level probes, a rain gauge, a data acquisition alarm, a computer, a power battery and an electric alarm, wherein the mud water level probes are embedded in the sidewall of a mud-rock flow guide channel on a monitored scene and uniformly distributed according to the height; the rain gauge is arranged in a range of a mud-rock flow monitoring and observation field; the electric alarm is arranged at the top of an observation room; the data acquisition alarm, the computer and the power battery are arranged in the mud-rock flow observation room; system software is arranged in the computer; when the mud water level probes are immersed in water or saturated mud water, signals are respectively sent and transmitted to the data acquisition alarm, and an alarm sound is sent and transmitted to the computer; after detecting rainfall information, the rain gauge sends the rainfall information to the data acquisition alarm; and the data acquisition alarm calculates accumulated rainfall amount and then transmits the accumulated rainfall amount to the computer. The mud-rock flow early warningsystem is used for monitoring mud water level in real time in the initial stage of occurrence of mud-rock flow, displaying the corresponding mud water level, rainfall amount and rainfall intensity, and giving an alarm.

A cylindrical collector of the rain gauge has a vertical distinctively colored stripe extending parallel to its vertical axis a focal length from its central axis on the opposite side of the rain gauge from rainfall indications. With this arrangement, the rain water in the rain gauge appears to have the color of a stripe which makes the water height easier to see. An open end of a parallelopiped interface receives the rain and has an area larger than the cross sectional area of the cylindrical collector to which it supplies the rain it receives. The numerals on the rain gauge indicating rainfall are scaled in proportion to the ratio of the area of the open end of the interface and the cross sectional area of the cylinder for easier reading. The parallelopipe design was selected to reduce the size of the shipping container and the dimension perpendicular to the holder is less than the width to permit the gauge to lie flat against a surface for hanging.

The invention relates to a siphon throttling tipping bucket rain gauge. The siphon throttling tipping bucket rain gauge comprises a rain container and a reed pipe, and is characterized by further comprising a filter screen, an outer bucket, a siphon funnel, a siphon pipe, a siphon filter screen, a sand basin, a support, magnetic steel, a tipping bucket, a water drain funnel, a spirit bubble and a bottom disc. The filter screen is arranged at the bottom of the rain container, the rain container is arranged on the upper portion of the outer bucket, the outer bucket is arranged on the bottom disc, the support is arranged on the bottom disc, the sand basin is arranged on the lower portion of the siphon funnel, the siphon funnel and the sand basin are arranged at the top of the support, the siphon filter screen is arranged at the inlet end of the siphon pipe, the siphon pipe is arranged in the sand basin, the reel pipe, the tipping bucket and the water drain funnel are sequentially and axially arranged on the upper portion of the support, the magnetic steel and the reel pipe are arranged at the top end of the tipping bucket oppositely and symmetrically, and the spirit bubble is arranged on the upper portion of the bottom disc. Rainfall flow with the strength changing in real time is converted into relatively even water flow to flow in the metering tipping bucket, and therefore the precision of measuring the field rainfall capacity is greatly improved.

The invention discloses a rainfall intensity measuring method based on a satellite-ground link attenuation effect. Attenuation characteristics generated when satellite communication signals pass through a rain area are used, and the average rainfall intensity of a satellite-ground link in a propagation path in the rain area is measured; the rainfall intensity measuring method comprises the following steps that firstly, a satellite signal receiving antenna is set up on the ground, the frequency and a polarization method of the satellite signals are determined, and the signal intensity is recorded by a satellite receiver; then rain-caused signal attenuation quantity is extracted according to changes of the signal intensity in rainy weather and non-rainy weather; and finally a relationship between rain-caused attenuation and the rainfall intensity are used for inversion to obtain the average rainfall intensity in the propagation path. The rainfall intensity measuring method based on the satellite-ground link attenuation effect has the characteristics that measuring points are many, the covered range is wide, the temporal-spatial resolution is high, the erection and maintenance costs are low and the like, areas with erected satellite antennae can be used for measuring the rainfall intensity, and the deficiencies that the temporal-spatial resolution of a meteorological satellite islow, scanning of a weather radar has a blind area, rain gauge stations are sparse and the like can be overcome.

The invention discloses a producing and preparing technology of a strain gauge. The preparing technology comprises the following steps of: elastomer machining, elastomer crude polishing, sand blasting, fine polishing, scribing, ultrasonic cleaning, surface mounting, stress testing, solidification, chip detection, welding spot processing, circuit board pasting, bridging wire processing, overload testing, surface glue coating, preliminary performance detection, trimming of four corners, zero point compensation, glue sealing, electric aging, total adjustment, and cleaning and packaging. The producing and preparing technology of the strain gauge has the advantages that the e strain gauge produced by the producing and preparing technology is high in resolution and is capable of measuring minimal strain which can be accurate to 0.5-2 micro-stain; the size is small, and the weight is light; the error is relatively small, reliable working can be achieved just by taking suitable measures; the producing and preparing technology has all advantages of electric measurement, for example, the measurement result can be conveniently sent, recorded and processed; the cost is low, the variety is numerous, selection and a large amount of usage are facilitated; and the yield rate is improved to 97.5%.

The invention relates to a high-resolution tipping bucket rain gauge device with the error correction function. The high-resolution tipping bucket rain gauge device comprises a tipping bucket rain gauge, and is characterized by further comprising a rainfall intensity simulator arranged at the top end of the tipping bucket rain gauge, the tipping bucket rain gauge is connected with an error corrector through a rainfall signal line, the rainfall intensity simulator comprises a measuring cup body, a measuring cup neck, a measuring cup cover, an air inlet valve, a ventilation pipe, a water discharge pipe and a water discharge pipe plug, the measuring cup neck and the air inlet valve are arranged on the upper portion of the measuring cup body, the ventilation pipe is arranged in an inner groove in the body wall of the measuring cup body and is connected with the air inlet valve, and the error corrector comprises a CPU intelligent control panel, a liquid crystal display, a tipping bucket rain gauge interface, a state switching interface and a pulse output interface. By means of the high-resolution tipping bucket rain gauge device, the measurement result of the 0.1 mm tipping bucket rain gauge can be corrected in real time, the measurement error of the tipping bucket rain gauge is greatly reduced, for example, the measurement error of the 0.1 mm tipping bucket rain gauge can be reduced to +/-3% from the current +/-18%, and therefore the measurement accuracy of outdoor rainfall is greatly improved.

The invention discloses a 0.1mm and 0.5mm sense quantities combined multi-tipping bucket rainfall sensor. A cylindrical rain holder is arranged; a base is arranged at the bottom of the cylindrical rain holder; and a lower water collector, a lower large tipping bucket, a middle water collector, a middle small tipping bucket, an upper water collector, an upper small tipping bucket, a vertical board and a funnel which are all arranged on the base in the rain holder in sequence from the top down, wherein an anti-blocking device is arranged above the funnel. The 0.1mm and 0.5mm sense quantities combined multi-tipping bucket rainfall sensor is reasonable in structure, novel and initiative at home; the technical indexes exceed the rule of the national standard GB/T11832-200 tipping bucket type rainfall gauge; and the disadvantage that the traditional double-tipping bucket type rainfall sensors can not tip rapidly in heavy rain and do not tip in light rain. The 0.1mm and 0.5mm sense quantities combined multi-tipping bucket rainfall sensor is suitable for measuring the rainfall of areas with big rainfall intensity change and continuous rainstorms, and can fill the gap of the domestic rainfall sensors for the measurement of heavy rain.

The invention relates to a method for measuring rainfall by pulse illumination optics. According to the method, controllable pulsed light is adopted, the transmission of the controllable pulsed light is consistent with frame synchronizing signals of image video signals, and the pulsed light is transmitted twice at certain time intervals T in each frame of exposure time; actually, each frame of acquired image is acquired by performing double exposure on precipitation particles, the double exposure makes particles appear at two different positions of the same fame of image, and the velocity of the particles is calculated by measuring the distance in which the particles are moved within the time T on each frame of image; the volume of the particles can be calculated according to particle sizes of precipitation particles in a measured clear precipitation particle image, the instantaneous precipitation values can be calculated by combining sampling areas, and the instantaneous rainfall is integrated to acquire gross rainfall; and rain, snow or hail can be identified according to the image of the precipitation particles and parameters such as drop spectrum distribution, velocity and the like. According to the method, particle size and dropping velocity can be simultaneously measured, and the method is extremely economic.