172results about How to "Realize online real-time monitoring" patented technology

The invention provides a vehicle fault online detection and early warning device based on the internet of vehicles and a vehicle fault online detection and early warning method thereof. The device comprises a vehicle-mounted terminal, a remote server side, a vehicle owner mobile phone client side, a maintainer client side and a maintenance manufacturer client side. According to the detection method, the vehicle-mounted terminal acquires vehicle information, wherein the vehicle information includes the data of an OBD interface and the data acquired by a sensor so as to realize vehicle online real-time monitoring; the vehicle information is transmitted to the remote server side to perform big data intelligent analysis so that the existing problems of the vehicle are obtained and early warning is provided and faults can be avoided; besides, a vehicle maintenance scheme can be intelligently provided, and the data are fed back to the vehicle owner and the maintenance shop of the maintainer through the vehicle owner mobile phone client side, the maintainer client side and the maintenance manufacturer client side so that the vehicle owner can understand the situation of the vehicle in real time and take measures for fault prevention, the maintainer can view the data and the analysis result of the remote server side and thus maintenance is facilitated.

The invention relates to a natural gas pipeline safety monitoring device based on acoustical science active spurring and belongs to the technical field of pipeline monitoring. The process includes that a sound source is placed at an inlet of the head end of a pipeline to transmit sound waves into the pipeline, and when the sound waves spreading in the axial direction of the pipeline meet hydrates or the pipeline leaks, reflecting signals can be generated; a microphone is arranged near the inlet of the pipeline to collect reflected wave signals; the microphone outputs the reflected wave signals into a signal conditioning module, a multifunctional data acquisition card is used for conducting analog-digital conversion, and finally the signals enter a computer to be analyzed. Positioning of the hydrates and leakage of the pipeline can be conducted by calculating the time difference of the sound wave transmitting signals and the reflected signals, and therefore real-time monitoring on the natural gas pipeline is achieved. The natural gas pipeline safety monitoring device has the main advantages that the method is simple and easy to use, the positioning precision is high, the occupied resources of a system are few, and operation is reliable.

The invention relates to a system for reducing emission of oxynitride of combustion equipment. The system comprises the combustion equipment with a burner and a flue. A gas flow adjusting valve is installed on a pipeline connecting the burner with a gas source. The flue is internally provided with a sensor used for detecting the concentration of gas components. An air inlet of the burner is connected with an air outlet of an air mixer in series. The air mixer is provided with two air inlets, one of the air inlets is connected with a combustion-supporting air pipeline with an air volume adjusting valve, the other air inlet is connected with a smoke gas returning pipeline with a smoke gas returning flow adjusting valve, the other end of the smoke gas returning pipeline is connected with the position, between the combustion equipment and the sensor, of the flue, and an air blower, the air volume adjusting valve, the smoke gas returning flow adjusting valve and the gas flow adjusting valve are controlled by a low-nitrate controller. The invention further relates to a method for reducing emission of the oxynitride of the combustion equipment. The problem that combustion is not stable in the operation process of an existing smoke gas outer circulation system is solved.

The invention relates to equipment for manufacturing a three-dimensional object. The equipment for manufacturing the three-dimensional object comprises a light splitting unit, image monitoring equipment, a dynamic focusing module, a vibration mirror system and a window mirror, wherein laser light emitted by a laser all passes through the light splitting unit, is dynamically focused by the dynamic focusing module, reaches the vibration mirror system and is focused to the working plane of three-dimensional object manufacturing equipment through the vibration mirror system and the window mirror, spontaneous radiation light of the working plane sequentially passes through the window mirror, the vibration mirror system and the dynamic focusing module, reaches the light splitting unit, is reflected by the light splitting unit and reaches the image monitoring equipment, and the image monitoring equipment monitors the temperature of a molten bath and the change of the temperature through the received spontaneous radiation light. The scheme provided by the embodiment of the invention not only realizes the online real-time monitoring of the three-dimensional object manufacturing equipment, but also can be used for the modification of parameters in a rapid forming and manufacturing process, and can improve the performance of rapid forming and manufacturing.

The invention relates to an optical parameter detection method of low-radiation coated glass, wherein the low-radiation coated glass is SnO2:F/SiCxOy, 0<x<1, and 1<y<4. The invention belongs to a coated glass detection field. On basis of obtaining a spectroscopic ellipsometry of SnO2:F/SiCxOy energy saving coated glass, the method introduces a five-layer film structure and an optical dispersion equation, returns an actually-measured spectroscopic ellipsometry by iteration, and finally obtains a film structure of the SnO2:F/SiCxOy coated glass and optical parameters of each layer. By the method, on-line real time monitor of optical performances of the coated glass can be implemented. The method can obtain an accurate film structure and the optical parameters only by optical test means, has advantages of no damage on a sample, small time consuming for measuring, simple measuring method, and no special requirement on a sample surface to be measured, and is very suitable for performance detection of the SnO2:F/SiCxOy energy saving coated glass.

The invention discloses a test method for a helicopter rotating part signal and a wireless collection device therefor. The method comprises: setting a sensing and collecting component on a rotating part of a helicopter, wherein the sensing and collecting component comprises one or more of the following ones: a strain gage and an optical fiber; obtaining the detection signal of the rotating component through the sensing and collecting component to detect the fault of the rotating component. According to the test method for the helicopter rotating part signal, the sensing and collecting component is arranged on the rotating part of the helicopter, and the detection signal is collected by setting a sensing component to detect the fault of the rotating component, so that online real-time monitoring on the signal of the helicopter on engineering application is achieved, basis is provided for troubleshooting the rotating component, the problems about overlong wire, tedious circuit and the like in the data collecting way of the rotating component are solved, and the problem that the helicopter rotating component in engineering application cannot be measured due to that good engineering application cannot be achieved in actual types is solved.

The invention discloses a distributed optical fiber sensor based tracking and positioning method of a detector in an oil conveying pipe and relates to the tracking and positioning field of detectors in oil conveying pipes. The distributed optical fiber sensor based tracking and positioning method comprises serving distributed optical fibers which are laid in an optical cable near the oil conveying pipe as a sensor and picking up vibration signals produced in the movement process of the detector arranged in the oil conveying pipe and implementing the tracking and positioning on the detector arranged in the pipe through a terminal computer according to the vibration signals. According to the distributed optical fiber sensor based tracking and positioning method of the detector in the oil conveying pipe, the method is simple, the optical fibers which are arranged in the optical cable on a pipeline on which the optical cable is laid, and devices such as a ground marker and a GPS (Global Positioning System) module do not need to be placed along the pipeline for the auxiliary tracking and positioning and a system is stable, the devices such as the computer and a laser light source required by the system are placed in a terminal station, and the long-term stable work of the devices are facilitated in compassion with devices in the environments such as an acoustic transmitting method, a magnetic signal transmitting method, a radioactive source transmitting method and an electromagnetic pulse transmitting method.

The invention provides a grid voltage stabilization on-line monitoring method based on voltage stability local indexes, comprising the following steps: calculating single power consumption transmission equivalence system parameters of a monitored node according to grid topology structure parameters and relevant node voltage current phasor in adjacent areas of the monitored node; using the single power consumption transmission equivalence system parameters to identify the influence of a system outside the area on the monitored node to obtain a single power consumption transmission equivalence system expanded by the monitored node; calculating voltage stability local indexes of the monitored node according to the expanded single power consumption transmission equivalence system parameters; judging whether the monitored node is a weak node according to the node voltage stability local indexes; and if so, performing voltage stability warning. The identified initial value is the calculatedsingle power consumption transmission equivalence system parameter. The invention can solve the problem of misjudgment of index values generated by incorrect identified parameters when the continuousexcitation condition is not satisfied; the method has fine index value performance, can judge the weak node correctly, and realize on-line monitoring of the grid voltage stability.

The invention discloses an online bidirectional monitoring and analysis method of a power system full channel based on the promiscuous mode, comprising the following steps: 1) setting a port of a switch in which the channel is located as a mirroring port and mirroring the received and transmitted data at other ports to the mirroring port; 2) connecting a computer network card in which online bidirectional monitoring and analysis software is located to the mirroring port of the prepositive switch; 3) the online bidirectional monitoring and analysis software setting the network card in the promiscuous mode and monitoring the received and transmitted messages on all the channels on the prepositive switch; 4) analyzing the source IP addresses and the destination IP addresses of the messages and distinguishing transmitting from the master station from transmitting from the plant station according to the source IP and the destination IP; and 5) interpreting and analyzing the monitored messages according to the corresponding protocols, wherein the switch is the prepositive switch or data acquisition switch. By the method, uplink and downlink simultaneous monitoring of all the special channels can be realized by only one computer with the network card and uplink and downlink online simultaneous monitoring of all the network channels can be realized.

The invention relates to a fiber bragg grating temperature sensor based GIS (Geographic Information System) equipment contact terminal temperature online monitoring system. The fiber bragg grating temperature sensor based GIS equipment contact terminal temperature monitoring system comprises a fiber bragg grating temperature sensor, a fiber bragg grating interrogator and a computer. The high accuracy fiber bragg grating temperature sensor respectively measures the GIS outer casing temperature, the contact terminal temperature and the environmental temperature; the interrogator receives and demodulates wave length signals reflected by the temperature sensor; the computer which is used for displaying temperature signals obtained by the interrogator can monitor the temperature change in real time. The fiber bragg grating temperature sensor based GIS equipment contact terminal temperature monitoring system has the advantages of being high in accuracy due to the facts that an appropriate algorithm is adopted and the contact terminal temperature is indirectly obtained through the outer casing temperature and the environmental temperature; enabling the GIS equipment to be reliably operated due to the fact that the fiber bragg grating temperature sensing technology is applied to the GIS equipment contact terminal temperature online monitoring; being strong in disturbance resisting capability and good in insulating performance, allowing fixed-point measurement, achieving real-time online measurement of the temperature and having wide application prospects.

The invention relates to a pump group state online monitoring system and method. The monitoring system comprises a plurality of pump state sensors, a plurality of pump state data aggregation devices and an industrial personnel computer serving as a monitoring terminal, wherein the pump state sensors are installed on pumps in a one-to-one correspondence mode, the pump state data aggregation devices and the pump state sensors are in wireless connection, and the pump state data aggregation devices and the industrial personnel computer are in wireless connection or in wired connection. The monitoring method comprises the steps that vibration and temperature information of the pumps is collected by the pump state sensors in real time, transmitted to the pump state data aggregation devices wirelessly, processed in a concentrated mode and then transmitted to the industrial personnel computer, calculation and processing are conducted through the industrial personnel computer, the real-time states, the historical operation states and the fault diagnostic reports of the pumps are displayed, and the online real-time state monitoring on the pumps by a control center is achieved. Faults can be found in time and handled in time, and it is ensured that production is conducted normally.

The invention discloses a cascaded H-bridge converter fault diagnosis method based on a voltage residual. The method comprises the following steps of step1, according to a system switch control signaland an alternating current side current polarity, acquiring switch functions under a normal condition and different switch tube faults; step2, obtaining a single-phase cascaded H-bridge converter input voltage calculation model and a state estimation model of a corresponding module; step3, obtaining theoretical analysis values of a voltage residual under the different faults; and step4, accordingto the theoretical analysis value of the voltage residual, designing two types of counters to obtain a maximum positioning fault module, and further determining the fault switch tube through combining a switch signal. The method can be integrated into a controller, real-time performance is good, and real-time diagnosis of the single-phase cascaded H-bridge converter fault module and an open-circuit fault switch is realized.

The invention discloses an online-monitoring system for an iron tower based on multi-source information. The system comprises a power supply module, a data acquisition module, a data operation center,a signal transmission module, and an iron tower data terminal. The monitoring method comprises the steps of: supplying the power to the whole monitoring system through the power supply module; obtaining the multi-source information respectively by the data acquisition module, wherein the multi-source information comprises a inclination angle (theta x, theta y), an acceleration (ax, ay, az), relative position information (x, y, z), a temperature T, position information (IMG), and the data acquisition module comprises an inclination angle sensor, an acceleration sensor, a UWB (Ultra Wideband) ranging positioning module, a temperature sensor, and a GPS sensor; connecting the data acquisition module with the data operation center; performing operation filtering and synthesis on the data obtained by the sensor through the data operation center, so that the iron tower condition data is obtained; and transmitting the tower condition data to the tower data terminal through the internet by thesignal transmission module. According to the online-monitoring system for the iron tower based on the multi-source information, the system can monitor the iron tower in real time, and ensure the long-term healthy and the efficient operation of the iron tower.

The invention discloses a boron concentration meter for a nuclear power station and a calibration method thereof. A detection device of the boron concentration meter is characterized in that a section of pipe on a drainage water monitoring branch is taken as a sampling pipe which serves as a sharing pipe section of a to-be-measured water monitoring branch and a calibration loop, and on-line communication of the sampling pipe and the calibration loop is realized through switching of tee branch control valves at two ends of the sharing pipe section; chemical titration as a standard, and the calibration for the boron concentration meter is finished ; and the operation is transferred to the monitoring branch after the calibration for real-time monitoring of boron concentration of primary loopwater . A measuring device adopts a linear mathematic model to establish a measurement relation in a piecewise fitting manner, so that the measurement precision is improved; and by means of an established on-line immediate calibration method, measurement drifting is eliminated, and measurement errors are corrected. The device is simple in structure, the measurement method is accurate and reliable, and the operation is easy; and by virtue of the calibration method, the insurmountable technical problem caused by enlargement of measurement errors of the boron concentration meter as time goes by is successfully solved, and accurate continuous on-line monitoring of the boron concentration of the primary loopwater is realized.

The invention relates to a rotary kiln firing state recognition method based on flame picture structure similarity. According to the technical scheme, the method includes the steps that a standard flame gray level image y, a normal flame gray level image storage FN and an abnormal flame gray level image storage FA are set; a to-be-monitored flame image P is obtained, and filtering and grey level transformation are carried out on the to-be-monitored flame image P to obtain a to-be-monitored flame gray level image x; average structural similarity coefficient calculation is carried out on the to-be-monitored flame gray level image x and all standard flame gray level images to obtain a+b MSSIM coefficients (x,y); the maximum value MAXssim of the MSSIM coefficients is selected, if the standard flame gray level image y corresponding to the maximum value MAXssim of the MSSIM coefficients belongs to the normal flame gray level image storage FN, the to-be-detected flame image P belongs to a normal state, and otherwise to-be-monitored flame image P belongs to an abnormal state. The method has the advantages of being high in precision, low in computation complexity, short in processing procedure and capable of achieving online real-time monitoring of flame state changes.

The invention discloses a device and method for monitoring the leakage of multiple parallel-buried natural gas pipelines. The device comprises a pressure stabilization vacuum pump, a flow meter, a methane detector, a first vacuum electromagnetic valve, a second vacuum electromagnetic valve, a third vacuum electromagnetic valve, a fourth vacuum electromagnetic valve, a fifth vacuum electromagnetic valve, a modulation semiconductor laser, a laser drive unit, a gas detection tube, a photoelectric receiving processing unit and a filter. If the leakage of the natural gas pipelines occurs, leaked gas enters the gas detection tube, gas leakage is detected by the photoelectric receiving processing unit, a signal is transmitted to a PLC so that the concentration of natural gas can be calculated, the PLC starts to time, the vacuum electromagnetic valve of the leaking pipeline is opened, other vacuum electromagnetic valves are closed, the pressure stabilization vacuum pump is started, the natural gas permeating through the gas detection tube flows through the methane detector, the PLC stops timing, collected data are processed and analyzed, a photoelectric alarm is given according to a set procedure, and leakage monitoring for the first time is achieved. The device for monitoring the leakage of the multiple parallel-buried natural gas pipelines is convenient to operate, simple in structure, high in flexibility and long in service life.

The invention provides a hydraulic power station governor oil pressure intelligent control system capable of diagnosing faults. The intelligent control system comprises a monitoring center, a governoroil pressure intelligent control device, a displayer, a fault diagnosis module, an oil pump motor set, an oil pump motor unloading electromagnetic valve set, an oil tank gas supplementing electromagnetic valve, an oil tank pressure switch, an oil tank oil level switch, an oil return tank oil level switch, an oil tank pressure transmitter, an oil tank oil level transmitter and an oil return tank oil level transmitter. The invention further provides a diagnosing method based on the hydraulic power station governor oil pressure intelligent control system. The diagnosing method comprises an internal diagnosing method and an external diagnosing method. The hydraulic power station governor oil pressure intelligent control system and the diagnosing method solve the problems that in the prior art, faults are prone to occurring, maintenance is difficult, the structure is complex, and consequently practicability is low, faults cannot be monitored, trouble shooting and repairing require a largequantity of labor, the operation condition of the system cannot be displayed in real time, and historical operation data cannot be inquired.

The invention discloses an online monitoring system and method for cigarette paper. The method comprises the steps that a plurality of cigarette paper samples of different batches are scanned to obtain a first near-infrared spectrogram; cigarette paper with ingredient content different from that of the cigarette paper samples is selected, and the cigarette paper is scanned to obtain a second near-infrared spectrogram of the cigarette paper; a detection model is established based on the first near-infrared spectrogram and the second near-infrared spectrogram, and whether the cigarette paper meets the quality requirement or not is judged according to the detection model. According to the online monitoring system and method for the cigarette paper, the near-infrared spectrum technology is introduced, and the quality stability of the cigarette paper is monitored online in real time; after the detection model is established, the mahalanobis distances of the samples can be obtained in real time by scanning the spectrograms of the samples online, the mahalanobis distances are compared with the control requirement to detect whether the cigarette paper meet the quality requirement or not, and the online monitoring system and method for the cigarette paper are suitable for judging and monitoring the quality stability of products which are produced through the cigarette paper of the same kind in different batches.

The invention relates to the field of intelligent water affairs, in particular to diving type intelligent water affair monitoring front-end equipment. The equipment comprises an overwater displacementassembly, a lifting assembly, a power supply, a water quality detection assembly, a small inflator pump, an industrial computer and a signal transmission device. The lifting assembly is located belowthe overwater displacement assembly. The top of the lifting assembly is fixedly connected with the top of the overwater displacement assembly. The top of the power supply is detachably connected withthe bottom of the lifting assembly. The industrial computer is arranged below the power supply. The water quality detection assembly is arranged below the industrial computer. The small inflator pumpand the signal transmission device are both fixedly installed at the top of the overwater displacement assembly. The water quality detection assembly is electrically connected with the industrial computer. The industrial computer is electrically connected with the signal transmission device. The front-end equipment can float on the water surface and be autonomously driven to move, and can automatically dive to a designated depth of a water body after moving to a designated position of the water body, so as to monitor the water quality of the water body at the designated depth.

The invention discloses a medical waste collecting method with an intelligent trash can. The intelligent trash can, a trash collection handheld terminal, and a back-end server are included; the intelligent trash can comprises a trash can placing base, a trash can body, a trash can cover, a radar ranging sensor, a trash can liquid crystal display screen, a trash can loudspeaker alarm device, a manual control button, a height indication lamp, a time indication lamp, an RFID radio frequency tag, a weighing sensor, a trash can MCU controller, a trash can data storage module, a timing module and awireless communication module; the a trash collection handheld terminal comprises a terminal MCU controller, a terminal touch display screen, a terminal loudspeaker alarm device, an RFID reader, a face recognition module, a terminal data storage module, a time date module, and a wireless communication module; and the back-end server is provided with a wireless communication module; and medical waste collection work in a hospital can be effectively achieved, the information intelligence degree is high, and online real-time monitoring is achieved.

According to the intelligent drilling management system and method based on the tunnel rail-mounted drilling robot, on-line real-time monitoring of a drilling construction site is achieved, on the basis of visualization and data extractability of a BIM model, the drilling position is optimized based on the three-dimensional scanning technology, the hole operation sequence is optimized through construction simulation, and the construction efficiency is improved. And the construction quality is improved. A hole information coding scheme is provided, automatic hole coding software is researched and developed, uniqueness of hole pointing and attribute of key building information are achieved, information is converted into data to directly control operation, and compared with a common drilling robot, the automatic hole drilling robot has the advantages of being high in automation degree and construction efficiency, capable of saving manpower and the like. A double-coordinate system is adopted, accurate positioning and drilling are achieved, and the drilling quality is optimized; according to drilling positioning, real-time comparison of real object and model data is achieved, the overall drilling accuracy is improved, differentiation of feedback data after drilling is completed is processed, and the drilling quality is further guaranteed.

The invention relates to the field of the electric power transmission engineering, and discloses a device for monitoring tilting, sinking and horizontal shifting of a double-antenna power transmission line tower. The device is capable of monitoring tilting, sinking and horizontal shifting of a power transmission line tower in an unfavorable geology region, and used for solving the technical problem that an existing power transmission line tower tilting detection device is incapable of really measuring the tilt angle of the tower and also fails in measuring sinking and horizontal shifting values of the tower. A system for monitoring tilting, sinking and horizontal shifting of the double-antenna power transmission line tower comprises a base station and a mobile station; the base station is used for receiving GNSS positioning information and also providing correction information for the mobile station; the mobile station comprises a double-antenna GNSS satellite receiving panel, and a data radio station and a management circuit which are connected with the GNSS satellite receiving panel, respectively; the management circuit of the base station is connected with a first GSM device; the signal input end of the GNSS satellite receiving panel of the base station is connected with a base station positioning antenna; the management circuit of the mobile station is connected with a second GSM device; the signal input end of the GNSS satellite receiving panel of the mobile station is connected with a mobile station positioning antenna and a mobile station direction-finding antenna, respectively, wherein the mobile station positioning antenna and the mobile station direction-finding antenna are mounted on the power transmission line tower.

The invention provides a transformer fault monitoring device and system, wherein the transformer fault monitoring device includes a main control chip and a partial discharge detection module, an ironcore grounding current detection module, an analysis and diagnosis module, and a communication module respectively connected with the main control chip. The partial discharge detection module detectspartial discharge signals at different positions in the transformer. The iron core grounding current detection module detects a ground leakage current of the iron core of the transformer. The main control chip receives and sends the partial discharge signals and the ground leakage current to the analysis and diagnosis module, packages the partial discharge signals, the ground leakage current and adiagnostic result returned by the analysis and diagnosis module, generates monitoring data, and sends the monitoring data to a monitoring terminal through the communication module, thereby achievingonline real-time monitoring of the transformer, improving the reliability of monitoring results and increasing the service life of the transformer, then improving the economy of power grid operation and the user experience.