1104results about How to "Reduce monitoring costs" patented technology

The invention provides a bridge structural health monitoring car. A mechanical hand capable of being bent to extend into the lower part of a bridge is arranged on the bridge structural health monitoring car, wherein at least one camera is arranged on the mechanical hand and used for collecting the image information of the bottom and the side face of the bridge; a high-precision GPS positioning device is arranged and used for determining a current detection position and measuring the line shape of the bridge surface; a bridge structure dynamic information collecting device is arranged and used for collecting the dynamic characteristic information data of the bridge structure; an information processing device is arranged and used for storing the image information collected by the cameras, the GPS data and the dynamic characteristic information data, judging the health conditions and the disease development conditions of the bridge structure according to the analysis and the comparison of the monitoring data of each time and definitely indicating the disease conditions and parts by visual images. The bridge structural health monitoring car can carry out health monitoring on a plurality of bridges at the same time.

The invention discloses a tunnel construction informatization dynamic monitoring system and a monitoring method thereof. The system comprises an industrial personal computer, a PLC (programmable logic controller) wireless controller, a high-configuration digital camera, a deformation monitoring sensitization part, digital display acquisition equipment, wireless transmission equipment and a dynamic design feedback device. The method includes: 1), controlling commands to be transmitted to the PLC wireless controller by a computer control main station and controlling the digital camera and the digital display acquisition equipment; 2), acquiring internal force monitoring data by the aid of the digital display acquisition equipment; and acquiring a deformation monitoring image via the deformation monitoring sensitization part by the digital camera; 3), transmitting a monitored value to the computer control main station by the aid of the wireless transmission equipment; 4), analyzing results by the computer control main station via a real-time analysis module; and 5), transmitting the analyzed results to the dynamic design feedback device, analyzing relative difference of the really monitored value and a standard value, and early warming in real time by an early warning module. The tunnel construction informatization dynamic monitoring system is scientific, safe and practical, the method is convenient, instant, fast and effective, and safety problems in construction monitoring of tunnels are avoided.

The present invention provides a method of using distributed optical fibers for an advanced monitoring of tunnel surrounding rock deformation. A monitoring device related to the method comprises a distributed optical fiber measuring pipe, an optical fiber sensing line, a Brillouin backscattering light data acquisition facility, and a data processing and analyzing software. The method comprises the steps of symmetrically laying sensing optical fibers on the external surface of a PP-R pipe to manufacture the distributed optical fiber measuring pipe, by which the displacement of soil along the measuring pipe can be obtained; embedding the distributed optical fiber measuring pipe in the drilling hole in the overlying surrounding rock of the tunnel, and injecting couplant to form a measuring pipe of a soil-pipe compatible deformation type, wherein the measuring pipe deforms with the synchronous displacement of the surrounding rock; and realizing monitoring of the deformation or displacement of the surrounding rock by measuring the deformation of the measuring pipe. The method provided in the invention has the characteristics of a distributed type, automatic data acquisition, real time and advanced monitoring, etc., and is suitable for monitoring surrounding rock two dimensional deformation or displacement in the geotechnical engineering field such as a tunnel cavern, a coal mine tunnel, etc.

The invention discloses an image-brightness-characteristic-based pan / tilt / zoom (PTZ) video visibility detection method, which comprises the following steps of: acquiring a road condition video image by using a PTZ video camera, extracting a region of interest (ROI) of the road surface, and acquiring high consistency of the selected pixels; obtaining an accurate road surface region by utilizing a Nagao-filtering-based regional growth algorithm, and ensuring consistent illumination of the selected pixels in a world coordinate; in the road surface region, extracting a contrast curve reflecting the road surface brightness change, searching brightness curve characteristic points, and calculating the farthest pixel which can be identified by human eyes in the image through an extinction coefficient; and combining the camera to calibrate and convert the maximum visual range, and determining a visibility value. In the method, artificial markers are not needed to be set, the existing PTZ camera is fully utilized to shoot road condition and acquire images, can monitor the road condition in real time, and is low in monitoring cost; moreover, the requirement on large-area road condition monitoring is met, the monitoring is stable and is not interfered by external environment, and the visibility monitoring method is easy to implement, high in accuracy and good in effect.

The invention discloses WLAN (Wireless Local Area Network) quality monitoring system and method and application, wherein the method comprises the following steps of: issuing a WLAN quality testing task to a monitoring terminal by using an operation maintenance center through a mobile communication network; monitoring the WLAN quality of a local WLAN access point by using the monitoring terminal according to the WLAN quality testing task, and then reporting a monitoring result to the operation maintenance center by using an WLAN; and carrying out statistic and trend analysis to the received WLAN quality monitoring result by using the operation maintenance center to evaluate the network quality of the local WLAN access point of the monitoring terminal. The system overcomes the subjective defect existing in an artificial route measuring method and greatly saves the monitoring cost.

In a laser based curing apparatus, the acts both as the curing light and the excitation source for a Raman spectroscopic sensor. The spectroscopic sensor provides real-time, in situ, non-invasive curing status monitoring via Raman spectroscopy. The spectroscopic information can be further used to control the operation parameters of the laser to achieve the optimum cure result.

The invention discloses a system and a method for acquiring instrumentation and equipment information based on computer vision. The system comprises field monitoring equipment, a communication network and a background system, wherein the field monitoring equipment comprises an image acquisition module, a processor module, a first communication module, an equipment control module and a power supply module; the processor module is connected with the image acquisition module, the equipment control module and the first communication module respectively; the background system comprises a data interaction control module, an image information identification and extraction module, a database module, a second communication module and a man-machine interaction operation module; the data interaction control module is connected with the image information identification and extraction module, the database module, the second communication module and the man-machine interaction operation module respectively; the second communication module is connected with the first communication module by a communication network and encryption communication is realized. The system and the method have high automation degree, rapid responding speed and low monitoring cost, and can be widely applied to the field of acquisition and control of data state information of instrumentations.

The invention discloses a turning cutter wear state monitoring system. The turning cutter wear state monitoring system comprises a signal collecting system and a cutter wear state identifying system; the signal collecting system comprises a temperature collecting system and a vibration signal collecting system, wherein the temperature collecting system collects temperature of a cutter point of a rake face of the cutter, and the vibration signal collecting system collects a three-dimensional vibrating signal at the lower surface of a cutter handle corresponding to the utter point of the rake face of the cutter; after pretreating the signal collected by the signal collecting system, the sensitive characteristic of the cutter wear state is obtained and transmitted to the well-trained cutter wear state identifying system; thus the wear state of the cutter is judged through the cutter wear state identifying system. The turning cutter wear state monitoring system is simple and applicable, and is convenient to operate; moreover, the sensor in use is relatively universal in use, moderate in cost, and easy to build up a testing system; the turning cutter wear state monitoring system can largely reduce the monitoring cost, effectively identify the wear state of the cutter and reduce the cutter waste.

The invention provides a remote sensing evaluation method of lake water reserves based on multispectral images. The remote sensing evaluation method includes: according to lake water body spectral response characteristics in different bands of multispectral remote sensing images, extracting water body indexes which reflect lake water surface distribution characteristics; according to the extracted water body indexes, obtaining lake water body boundaries, giving actually-measured lake water level information to the lake water body boundaries, and generating lake equal water level line data sets according to different periods of the lake water body boundaries; according to the lake equal water level line data sets, simulating lake underwater topography; and calculating the lake water reserves in different periods according to the simulated lake underwater topography and actually-measured water level data. According to the remote sensing evaluation method, the lake underwater topography is monitored through utilization of multispectral satellite remote sensing data, the utilized satellite remote sensing data substantially can be obtained for free, and the remote sensing data has the advantages of wide space coverage areas and rapid refreshing speed, so that compared with conventional field actual-measurement methods, the remote sensing evaluation method provided by the embodiment of the invention has the advantages of low monitoring cost, convenient refreshing, and possibility of wide-range popularization and application.

The invention provides a track switch fault diagnosis method and system based on a support vector machine. The method comprises the steps of: obtaining training samples, wherein the training samples include historical fault current power curves of track switch actions corresponding to a plurality of kinds of track switch fault types; according to factors such as expert experience and fault mechanisms, extracting morphological characteristics of the training samples; selecting a core function of a support vector machine classifier, and determining the parameters of the core function according to the morphological characteristics of the training samples so as to train the support vector machine classifier; collecting current power curves of the track switch actions; and classifying the current power curves according to the support vector machine classifier, and determining whether the track switch is faulted and the fault type of the track switch according to the classifying result. By adopting the method, personnel monitoring and maintenance cost of the track switch is effectively lowered, whether the track switch is faulted and the fault type of the track switch can be automatically and accurately determined, the monitoring of the track switch is convenient, and the maintenance of the track switch is convenient.

The invention discloses a tunnel structure monitoring system and a tunnel structure monitoring method based on a distributed long-gauge fiber bragg grating. The system comprises distributed long-gauge fiber bragg grating sensors which are comprehensively distributed in a monitored range along the axial direction and the cross section of a tunnel; and longitudinal sedimentation of the tunnel and change conditions of various ring joints of the shield tunnel are monitored. The method comprises the following steps of arranging the distributed long-gauge fiber bragg grating sensors; and acquiring, transmitting and processing data. By the tunnel structure monitoring system and the tunnel structure monitoring method based on the distributed long-gauge fiber bragg grating, full-life monitoring on a tunnel structure in a construction period and a running period can be carried out, and longitudinal sedimentation, convergence deformation, joint deformation, duct piece internal force, strain and the like of the tunnel structure are dynamically monitored in real time.

The invention discloses a positioning method for Beidou short baseline single frequency single epoch solution. The method comprises steps of (1) Beidou single frequency pseudorange single point positioning, (2) data preprocessing, (3) establishment of a Kalman filter precision n-dimension dynamic model based on prior historical data and consideration of influences of a signal-to-noise ratio and asatellite elevation angle on an observation value, (4) model initialization, (5) Beidou single-frequency part ambiguity estimation to obtain a fixed value of each hierarchical ambiguity, (6) cycle-slip epoch-by-epoch detection in combination of the single-frequency ambiguity fixed value and an updating value, and (7) baseline vector calculation and coordinate covariance matrix updating based on the fixed ambiguity, and back substitution to a carrier phase observation equation after the ambiguity is fixed to obtain a baseline vector. The method can automatically eliminate the influences of tropospheric errors and multipath errors in real time, and realize accurate fixation of Beidou single frequency ambiguity. While the real-time performance and the precision of monitoring are ensured, themonitoring cost is greatly reduced, and promotion and application of the Beidou positioning technology is facilitated.

An electrical condition monitoring method utilizes measurements of electrical resistivity of an age sensor (303) made of a conductive matrix or composite disposed in a polymeric structure such as an electrical cable (301). The conductive matrix comprises a base polymer and conductive filler. The method comprises a means for communicating the resistivity to a measuring instrument (317) as a means to correlate resistivity of the conductive matrix of the polymeric structure with resistivity of an accelerated-aged conductive composite.

The invention provides a service life forecasting method and a service life forecasting system of fan components. The service life forecasting method of the fan components comprises the steps of: acquiring characteristic parameters of the fan components; determining the components that are at a non-ineffective stage according to the characteristic parameters acquired; determining the rest service life region of the components that are at the non-ineffective stage; and performing on-line rest service life forecasting on the components of which the rest service life region is within a preset service life region. According to the method and the device, the rest service life of the fan components can be acquired on line so that a fan user can be guided to process potential fan faults in time, thus ensuring the safety and the reliability in operation of a fan.

Provided is a wind turbine blade fatigue life real-time monitoring method. The wind turbine blade fatigue life real-time monitoring method real time measures output power, rotating speed and pitch angle of a wind wheel, and reversely pushes out relative wind speed of a random blade element of the blade according to monitoring data, and then apply blade element-momentum (BEM) principle to calculate loading impacted on each blade element, and then calculate loading of the whole blade through integration, form stress spectrum, and eventually use rain-flow counting method to count stress cycle times and accordingly conduct life loss calculation, and obtain fatigue life of wind turbine blade. The power of the wind turbine acts as a monitoring quantity, wind turbine blade fatigue life is obtained by theoretical calculation. The wind turbine blade fatigue life real-time monitoring method has the advantages that not only accuracy of measured data and reliability of monitoring results are guaranteed, but also the whole monitoring process relies on the existing system, and no large quantity sensor is needed to be additionally install. The wind turbine blade fatigue life real-time monitoring method has the advantages of being convenient in implement, low in monitoring cost and the like. The real-time monitoring method of wind turbine blade fatigue life is an ideal method of analyzing and evaluating wind turbine operating safety.

The invention discloses a distributed optical fiber test platform for monitoring an earth rock dam seepage condition. The distributed optical fiber test platform comprises a heating system, a seepage system and a DTS system; the distributed optical fiber test platform is a practical platform having strong operability, aimed at dam seepage monitoring and based on construction of a dam seepage monitoring two-field coupling simplified model; with combination of the DTS system, the distributed optical fiber test platform provides a possibility for a practical application of seepage monitoring engineering of a porous medium structural body, such as an earth rock dam and a dyke-dam, and builds a reliable test platform for various related test researches; and the distributed optical fiber test platform has the advantages of wide test range, high precision, simple layout, low monitoring cost, high working efficiency, strong engineering applicability and the like.

The invention provides a method for monitoring states of a server. The method includes a step S1, transmitting running parameters of devices in the server to a substrate management controller; and a step S2, determining working states of the devices by the substrate management controller according to the running parameters. By the aid of an embodiment of the method for monitoring the states of the server, conditions of the various devices in the server can be comprehensively monitored by the aid of the substrate management controller with a high integration level, stable running of the server is guaranteed, and monitoring cost is saved.

The invention discloses a method and system for monitoring a water gauge water level video based on a deep learning algorithm, and belongs to the technical field of image identification and water level monitoring. The method comprises the steps of video acquisition, video frame processing, water level line identification, water level measurement and the like. The method and system for monitoring the water gauge water level video based on the deep learning algorithm have the advantages that a deep learning neural network is used for achieving the intellectualization and automation of the waterlevel monitoring, very high accuracy and feasibility are provided, the structure is simple, the device is arranged conveniently, compared with the prior art, the cost is low, the automation level is high, higher monitoring efficiency is provided, and the method is an important improvement for the prior art.

The invention relates to a system and a method for monitoring seawater intrusion-ground water level-soil salinization in real time. The system comprises an upper computer, an acquisition and emission device with a general packet radio service (GPRS) module, and a resistivity measurement device consisting of pluggable nylon modules and copper electrode rings among the pluggable nylon modules, wherein each copper electrode ring is connected with a central control unit in the acquisition and emission device through a wire. The method comprises the following steps of: selecting a sample point in a seaside region; measuring the resistivity of a soil sample at the sample point when seawater is saturated, fresh water is saturated and the salt content is 0.3 percent, and taking the resistivity asan early warning threshold value; and giving an alarm when the bottom part, middle part or upper part of the resistivity measurement device reaches the threshold value. The system is widely applied, is convenient to use and can be combined according to the monitoring aim to reduce cost, dynamic, in-situ and real-time monitoring is realized through remote data transmission, remote, in-situ, real-time and automatic synchronous monitoring is realized by vertically measuring resistivity at certain depth, and the system has great significance for studying the seawater intrusion-ground water level-soil salinization.

The invention discloses a monitoring system based on an unmanned aerial vehicle, comprising an unmanned aerial vehicle terminal, an intelligent equipment terminal, a cloud terminal server and a monitoring terminal, wherein the intelligent equipment terminal is adhered to the monitored target, a first communication module and a processor module are arranged in the intelligent equipment terminal, the unmanned aerial vehicle terminal is connected with the intelligent equipment terminal, a tracking module is arranged in the unmanned aerial vehicle terminal, the unmanned aerial vehicle terminal can fly along the intelligent equipment terminal by the tracking module. The internal shooting module is used for obtaining the real-time video information of the monitored target and the surroundings, a second inner communication module is used for communicating with the information of the first communication module, the intelligent equipment terminal uploads the real-time information of the monitored target to the cloud terminal server by the first communication module, and the monitoring terminal can obtain the real-time information from the cloud terminal server. The unmanned aerial vehicle in the invention is used as the front-end monitoring equipment so as to solve the problems of limited monitoring range, high monitoring cost and monitoring dead angle existing in the traditional monitoring system.

The invention provides a method for online monitoring capacitive voltage transformers. The method includes the steps that secondary voltage data of the capacitive voltage transformers of transformer stations in a monitored area are acquired based on an energy management system; the secondary voltage data are associated with information of transformer equipment corresponding to the transformer stations; failure state information of the capacitive voltage transformers is judged according to the secondary voltage data; operating states of the capacitive voltage transformers of the transformer equipment of the transformer stations in the monitored area are monitored according to the failure state information. According to the method for online monitoring the capacitive voltage transformers, hardware equipment does not need to be additionally arranged, the operating states of the capacitive voltage transformers can be online monitored in real time, monitoring cost is low, safe and reliable operation of an electric power system is not affected, and the method is suitable for being widely popularized and applied to the electric power system.

The invention discloses an extendable embedded type device for fixing and recovering a microseismic sensor and method of using the same. The device comprises three parts of a protective cover, a connecting sleeve, an extendable supporting and fixing structure. The protective cover is composed of a fit cone, a fixing shaft and a cover wall with a mesh. Two ends of the connecting sleeve are respectively provided with internal and external threads. The extendable supporting and fixing structure is composed of a supporting shaft, a connecting ring, a "skeleton", a limit bolt, a limit groove, a supporting pipe, an elastic rod, an elastic cap with a baffle and an elastic shaft. The fit cone at one end of the protective cover is in close contact with coal. A microseismic sensor is located in the protective cover and fixed on the fixing shaft of the protective cover. The other end of the protective cover is connected with one end of the connecting sleeve through the internal thread. The other end of the connecting sleeve is connected with the supporting shaft of the fixing structure through the internal thread. The elastic cap with the baffle is screwed on, the elastic rod is supported tightly, and the supporting pipe is pushed to enable the "skeleton" to open so that the entire device is embedded, supported and fixed into the coal of a drilling hole. In the recovery, the elastic cap is screwed off, the supporting pipe is pulled to enable the "skeleton" structure to close, and the elastic rod, the connecting sleeve, the protective cover and the senor are removed in sequence.

In a laser based curing apparatus, the acts both as the curing light and the excitation source for a Raman spectroscopic sensor. The spectroscopic sensor provides real-time, in situ, non-invasive curing status monitoring via Raman spectroscopy. The spectroscopic information can be further used to control the operation parameters of the laser to achieve the optimum cure result.

The invention discloses a monitoring device and method for horizontal displacement and vertical sedimentation of a foundation pit deep layer. The monitoring device comprises a deformation measuring system, a distance measuring system, a reference point and a data processing system. The deformation measuring system comprises a plurality of deformation detectors embedded in the side wall of a foundation pit and used for measuring horizontal flexural deflection of a soil body on the side wall of the foundation pit in the depth direction. The distance measuring system is used for measuring the distance between the top point of the deformation measuring system and the distance measuring system. The reference point is arranged on the side far away from the side wall of the foundation pit. The data processing system is used for receiving data monitored by the deformation measuring system and the distance measuring system and processing the received data, and horizontal displacement and vertical sedimentation of the foundation pit deep layer are transmitted to a user terminal. According to the monitoring device and method, horizontal displacement and vertical sedimentation of the soil body of the foundation pit deep layer are monitored in real time at the same time, and manual measurement is not needed. The automation degree is high, the monitoring cost is reduced, and the measuring precision and the data reliability are further guaranteed.

A gob-side entry retaining pasty filler on-line detection method comprises the steps that before each monitored space is ready to be filled, supporting rods are fixed to a base plate of a space to be filled through ground anchors, the upper ends of the supporting rods support a top plate of the space to be filled, measuring optical fibers are arranged between the supporting rods, an optical fiber connector is introduced out of the tail portion of the last supporting rod in each set of supporting rods and is connected in a mining optical cable through optical fibers so that optical fiber monitoring signals can be transmitted to a distributed optical fiber demodulator, demodulated signals are transmitted to a computer system, and pasty filler is monitored in real time on line and is analyzed and processed after the space is filled. The gob-side entry retaining pasty filler on-line detection method has the advantages that equipment installation is easy, the method is suitable for being universally popularized, no power supply is needed under a well, a site is safe, all-optical measurement and optical fiber transmission are adopted, influences caused by electromagnetic interference are effectively avoided, a monitoring result can be provided in time, and the method is favorable for directing on-site filling mining production work.

The invention discloses an Internet protocol television (IPTV) service quality monitoring method, a device and a video server, and relates to the IPTV technical field. The method includes the step of monitoring the video quality index of IPTV business which comprises signaling flow and media flow by a built-in probe of the IPTV video server, wherein the built-in probe monitors the media flow at a streaming media socket interface of the IPTV video server, and the built-in probe monitors the signaling flow at a signaling interaction socket interface of the IPTV video server. By means of the built-in monitoring module, quality monitoring can be conducted on every route of media flow which is output by the IPTV video server. Video quality monitoring is used as a module of video service software, the consumption of server resources is low and can be controlled, and normal media streaming service is not influenced.

The invention discloses a system for GIS (Global Information System) partial discharge measurement and VFTO (Very Fast Transient Overvoltage) measurement in the technical field of online monitoring systems of electric equipment. The system comprises a probe, a circuit selector, a partial discharge detection amplifying unit, a VFTO secondary partial pressure unit, a signal collecting and processing unit and an oscilloscope. The measurement system can use one probe to perform GIS partial discharge and VFTO measurement, and the two original systems are combined to the same system to reduce the GIS monitoring cost; the special probe design improves the measurement sensitivity of partial discharge; and the preferable VFTO secondary unit design improves the glancing flatness of wide frequency band measurement of a VFTO sensor.

The invention discloses a method for monitoring a tire burst or severe air leakage of a vehicle. The electronic control unit (ECU) of a tire burst or severe air leakage monitoring system comprises a wheel speed signal vibration performance analysis module and an effective radius performance analysis module, wherein the wheel speed signal vibration performance analysis module monitors and calculates a natural frequency threshold and a natural frequency of a tire in real time; the effective radius performance analysis module calculates a variation rate and a threshold of a wheel speed, a specific value and a threshold of a wheel speed product between diagonal wheels; and the ECU combines the criterions to judge the tire burst or the severe air leakage. The monitoring method of the invention reasonably simplifies and combines in the criterion algorithm thereof, can timely and accurately monitor the tire burst or the severe air leakage in a mode of indirectly combining a plurality of criterions after the tire burst or the severe air leakage occurs, informs a driver of related information or drives a related tire burst braking control system at the same time, improves the safety performance of the accident tire burst or severe air leakage of the vehicle and is low in monitoring cost.

The invention provides a method for monitoring and early warning water bloom in a small water area based on image processing, which relates to a method for monitoring and early warning water bloom in a small water area. In the invention, a camera and a computer are used for realizing the purposes of monitoring and early warning the water bloom in the small water area through calculation according to programs. The invention has the characteristics of simple monitoring equipment, strong environment adaptive capacity, small algorithmic calculated amount, high speed, low requirements for hardware, flexibility, convenience, low cost, convenient maintenance and the like, can be directly embedded with the existing water surface video monitoring system or can be developed into embedded equipment or can directly operate on the computer, and can realize the purpose of quickly and effectively early warning the water bloom in real time. The invention can be widely used for monitoring and early warning the water bloom in small water areas such as upstream reservoirs of rivers, reservoirs used as sources of drinking water of towns, river reaches in water taking areas of towns, rivers, lakes or landscape water areas where the water bloom often occurs, and the like.