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37results about How to "Realize multi-point monitoring" patented technology
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Real-time automatic monitoring method and real-time automatic monitoring system for underground light non-aqueous phase liquid pollutant dispersion
ActiveCN103033540AEasy to operateAccurate measurementMaterial resistanceMonitoring dataDynamic monitoring
The invention provides a real-time automatic monitoring method and a real-time automatic monitoring system for underground light non-aqueous phase liquid pollutant dispersion. The method comprises the following steps: taking a monitoring point location; obtaining a resistance variation range E after characteristic LNAPLs pollutant and characteristic LNAPLs pollution is caused at the monitoring point location; determining the length of a resistance probe; determining a distance between electrode rings; hanging one set of resistance monitoring device in a monitoring well according to an underground water flow direction; respectively injecting at least one set of resistance monitoring device at monitoring point locations upstream and downstream underground water; setting collecting parameters; transmitting monitoring data in real time; and automatically alarming when the resistance reaches the lower limit of the E. The real-time automatic monitoring method provided by the invention has the advantages of simple operation, accurate measurement and reliable operation; data can be monitored in real time and wirelessly transmitted; the diffusion process of the LNAPLs after leaking can be dynamically monitored in real time; the redistribution process of the LNAPLs can be also monitored during extracting rainfall or underground water; and the real-time automatic monitoring method provided by the invention can be widely applied to dynamic monitoring of underground pollution after the LNAPLs is leaked in large-scale petrochemical enterprises, gas stations and so on.
Owner:OCEAN UNIV OF CHINA
Agriculture and forestry pest and disease monitoring and management system
InactiveCN108111614AAvoid confusionRealize the early warning effectIndication of weather conditions using multiple variablesTransmissionDisease monitoringThe Internet
An agriculture and forestry pest and disease monitoring and management system uses the Internet of Things technology, relates to the technical field of system integration and software development, ishighly integrated and excellent in function completeness and forms a relatively complete entirety from a hardware acquisition end to a server receiving end and further to a client side (a remote PC side and a mobile phone APP). The system realizes that the client side can remotely control a camera of the hardware acquisition end through a server to move up and down and acquire meteorological data.The system realizes remote control on a hardware device through the server, controls the camera to go up and down, can take video images in multiple angles, and realizes multi-point monitoring and multi-user access. Intellectualization is reflected fully, a problem that agriculture and forestry experts have to go to farmlands to perform observation is solved, and the experts can check anytime anywhere. An early warning part also reminds people to make corresponding measures. Mass data obtained provide a sufficient data basis for later analysis of crop optimal growth environment, and so on.
Owner:BEIJING UNIV OF TECH
Full road condition ponding water level monitoring alarm and drainage device
ActiveCN105651359AMonitor waterloggingReal-time monitoring of water accumulationMachines/enginesLubrication indication devicesDisplay deviceEngineering
The invention provides a full road condition ponding water level monitoring alarm and drainage device and belongs to the field of ponding monitoring alarm and drainage devices for traffics. The device is characterized by comprising a road ponding monitoring device, an overpass tunnel ponding monitoring device, a water level monitoring display device, a water level monitoring alarm device and an automatic drainage device. The road ponding monitoring device and the overpass tunnel ponding monitoring device are connected with the water level monitoring display device. The device can monitor the ponding water level of various road conditions in real time, and transmit data to a monitoring center in real time, and the data can also be directly displayed to serve as action reference for municipal administration and passers-by. In addition, the device can drain water intelligently and actively according to the monitored water level data, and urban water logging is avoided.
Owner:SHANDONG XINGZHI INTELLIGENT TRANSPORTATION TECH CO LTD
Farmland or sloping field runoff water flow monitoring device
InactiveCN102455200AImprove real-time performanceSimple structureTransmission systemsStationary measuring chambersSiphonExhaust valve
The invention discloses a farmland or sloping field runoff water flow monitoring device which comprises a runoff water collector for collecting farmland or sloping field runoff water, a siphon used for siphoning the runoff water from a siphon water inlet valve to a siphon generator through a siphon water outlet valve, a siphon water inlet valve for controlling flow direction of the runoff water in the runoff water collector under the control of a water inlet valve floater, a water inlet valve floater arranged below the siphon water inlet valve, a connecting rod connecting the siphon water inlet valve with the water inlet valve floater, a siphon exhaust valve being used for injecting water in the siphon and exhausting air in the siphon and being closed when the siphon is filled with water, a siphon water outlet valve used for guiding the water in the siphon to the siphon generator, a pressure sensor used for sensing a liquid level pressure parameter in the runoff water collector and storing the liquid level pressure parameter, and the siphon generator being provided with an overflow hole and having a liquid level height of less than that in the runoff water collector. By applying the invention, runoff monitoring instantaneity and runoff measurement precision can be improved.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
Online grain moisture content detection system and method based on temperature and humidity inversion
ActiveCN103389362ARealize online real-time monitoringSimple and fast operationTesting foodCommunication interfaceData acquisition
The invention provides an online grain moisture content detection system and method based on temperature and humidity inversion. The system comprises a core micro-controller and temperature and humidity detection units, wherein the temperature and humidity detection units comprise temperature detection units and humidity detection units; the core micro-controller comprises a temperature and humidity data acquisition and processing unit, a timer unit, a grain balance moisture content calculation unit, a historical temperature and humidity data and historical grain balance moisture content data storage unit, a grain moisture content compensation calculation unit, a historical grain moisture content data storage unit and an upper computer communication interface unit. The system can be automatically timed to detect the grain moisture content in each position in a grain mass without manual sampling detection, is high in accuracy, can be used for simultaneously detecting a plurality of sites, and fills up the current blank of online intelligent grain moisture detection in China.
Owner:杭州泽大仪器有限公司
Outdoor advertising safety detection method based on ZigBee and MEMS (micro-electromechanical system) sensor
InactiveCN106441285AAchieve precisionRealize multi-point monitoringTransmission systemsNavigation by speed/acceleration measurementsGeneral Packet Radio ServiceOperational system
The invention discloses an outdoor advertising safety detection method based on ZigBee and an MEMS (micro-electromechanical system) sensor. The method is mainly used for judging the safety state of the current outdoor advertising with a node attitude inclination contrastive analysis method and producing early warning for hazardous conditions. A system can be mainly divided into a sensor acquisition subsystem, a wireless sensor network system and a terminal monitoring platform. In order to improve monitoring range and measuring precision of the system and reduce power consumption and cost of the system network, a ZigBee wireless network is adopted to build a network platform, and a six-axis sensor data fusion algorithm technology is combined, so that multi-point monitoring and high-precision measurement of outdoor advertising equipment are realized; the terminal monitoring platform utilizes an ARM processor as an intelligent control core, application programs operate on a Linux operating system, data can be processed and analyzed with high efficiency in a multi-thread mode, and early warning information can be sent out and transmitted to a remote server with a GPRS (general packet radio service) technology.
Owner:HANGZHOU DIANZI UNIV
Slope monitoring multi-point displacement sensor based on fiber bending loss
ActiveCN108106543ARealize distributed monitoringLow priceUsing optical meansSlope monitoringEngineering
The present invention relates to a slope monitoring multi-point displacement sensor based on fiber bending loss. The sensor comprises a plurality of displacement sensing units, there are one or more than one displacement sensing units which are connected in series in order, and each displacement sensing unit comprises one protective cover, one right connection leading optical fiber, one upper endtop plate, one capillary steel pipe, base materials, one lower end bottom plate, one left connection leading optical fiber and one optical fiber bow-tie modulation mechanism; the protective covers areconnected with the upper end top plates through bolts; the upper and lower surfaces of the base materials are fixedly connected with the upper end top plates and the lower end bottom plates; an axlewire of the base materials is provided with a guide groove hole, the capillary steel pipes pass through the guide groove hole, the lower ends of the capillary steel pipes are fixed at the lower end bottom plates, the upper ends of the capillary steel pipes are connected with the optical fiber bow-tie modulation mechanisms, and anchor heads are fixed at the lower surfaces of the lower end bottom plates; and the optical fiber bow-tie modulation mechanisms are arranged in the protective covers. The slope monitoring multi-point displacement sensor based on the fiber bending loss solves the problems of slope internal displacement distribution and remote real-time monitoring.
Owner:HEBEI UNIV OF TECH
SF6 gas concentration monitoring system and SF6 gas concentration monitoring method
InactiveCN106568901ARealize multi-point monitoringTimely detection of leaksAnalysing gaseous mixturesSmart substationMonitoring system
The invention relates to an SF6 gas concentration monitoring system and an SF6 gas concentration monitoring method. The system comprises multiple data transmitters which are arranged at multiple monitored positions in a switch room of an intelligent substation and used for measuring the SF6 concentration and O2 concentration at each monitored position and the temperature and humidity inside the switch room of the intelligent substation, an alarm transmitter which is used for receiving an alarm command of a master control module, driving alarm equipment to raise the alarm and driving a ventilation device to ventilate the switch room of the intelligent substation, a display module which is used for providing an interactive interface capable of setting the system parameters, displaying the SF6 concentration and O2 concentration at each monitored position and the temperature and humidity inside the switch room of the intelligent substation and displaying the historical curve of SF6 concentration, and the master control module which is used for processing the SF6 concentration and O2 concentration at each monitored position and the temperature and humidity inside the switch room of the intelligent substation uploaded by the multiple transmitters and sending an alarm command.
Owner:CHINA ELECTRIC POWER RES INST +1
Retaining wall real-time bearing capacity limit monitoring method and system
InactiveCN111101549AComprehensive and reliable monitoring resultsIncrease the frequency of data collectionTransmission systemsFoundation testingMonitoring dataMonitoring site
The invention discloses a retaining wall real-time bearing capacity limit monitoring method. The retaining wall real-time bearing capacity limit monitoring method comprises the steps that (1), the site environment, the topography and landforms, the site structure and historical conditions are detected and investigated; (2), a monitoring scheme comprising the mechanical performance index, the monitoring point number, the arranging position and the frequency is determined according to a detection result; (3), a monitoring mathematical model is established; (4), sensors are arranged at the monitoring points, and monitored data are collected and uploaded to a cloud server; (5), the cloud server receives and stores the monitored data and analyzes the monitored data in real time by combining themonitoring mathematical model, and a real-time safety coefficient FOSins and a risk index Ri are obtained; and (6), different grades of early warning signals are sent to a monitoring terminal according to the magnitude of the risk index Ri value. The invention further discloses a retaining wall real-time bearing capacity limit monitoring system. According to the retaining wall real-time bearing capacity limit monitoring method, the site material characteristics and the actual force stability performance are taken into account, real-time safety level assessment is conducted on the site at anytime by combining a cloud server technology, the personnel safety escape time is reserved, and personnel property losses are avoided.
Owner:北京国泰佳业科技发展有限公司
Intelligent environment monitoring, parking stall management and automatic illumination system of community
InactiveCN106773898AImprove reliabilityImprove distributionProgramme controlMeasurement devicesIntegrated monitoringAnalog to digital conversion
The invention provides an intelligent environment monitoring, parking stall management and automatic illumination system of a community. The system comprises a single-chip microcomputer and an environment detecting and signal processing circuit connected to the single-chip microcomputer via an analog to digital conversion circuit. The environment detecting and signal processing circuit comprises a (1) humidity and temperature sensor which measures the temperature and humidity of the present environment, (2) a noise sensor which measures noises in the present environment, (3) an infrared detection module which detects the parking stall using condition, (4) an air quality sensor which detects the air quality condition of the present environment, and (5) a photosensitive sensor which detects the illumination condition of the environment. The system can monitor the temperature, humidity, noise, air quality and parking stall using conditions of the environment comprehensively, and pushes collected information to display screens of families in the community.
Owner:SHANGHAI DIANJI UNIV
Plant critical freezing injury temperature detector
InactiveCN105606664AEasy to measureRealize multi-point monitoringTransmission systemsThermometer applicationsMicrocontrollerWireless transmission
The invention discloses a plant critical freezing injury temperature detector and belongs to the field of monitoring and control of agro-meteorological disasters. The detector comprises a detector main engine which takes a power consumption microcontroller as a core, and a plant critical freezing injury temperature wireless sensor, wherein the detector main engine is in wireless communication with the plant critical freezing injury temperature wireless sensor through a wireless transmission communication protocol. According to the plant critical freezing injury temperature detector disclosed by the invention, portable and effective measurement of plant critical freezing injury temperatures is realized; the plant critical freezing injury temperature detector is simple in structure and low in cost; and the wireless sensor and the detector are used for carrying out wireless transmission of data, and multi-point monitoring of the plant critical freezing injury temperatures is realized.
Owner:JIANGSU UNIV
Method and system for monitoring real-time bearing capacity limit of foundation pit
InactiveCN111139877AAvoid lostScientific and accurate methodMeasurement devicesFoundation testingMonitoring siteMathematical model
The invention discloses a method for monitoring the real-time bearing capacity limit of a foundation pit. The method comprises the steps of (1) detecting and surveying the site environment, landform,site structure and historical condition; (2) determining a monitoring scheme according to the detection result, wherein the monitoring scheme involves mechanical performance indexes, the number of monitoring points, the arrangement position and frequency; (3) establishing a monitoring mathematical model; (4) arranging sensors at the monitoring points, collecting monitoring data, and uploading themonitoring data to a cloud server; (5) receiving and storing the monitoring data through the cloud server, and analyzing the monitoring data in real time in combination with the monitoring mathematical model to obtain the real-time safety coefficient FOSins; (6) and sending early-warning signals at different levels to a monitoring terminal according to the magnitude of the real-time safety coefficient FOSins. The invention furthermore discloses a system for monitoring the real-time bearing capacity limit of the foundation pit. According to the method and system for monitoring the real-time bearing capacity limit of the foundation pit, the material characteristics and the actual mechanical stability of the site are taken into account, a cloud server technology is furthermore utilized to evaluate the real-time safety level of the site at any time, the time is gained for people to safely leave the site, and the property loss of people is avoided.
Owner:北京国泰佳业科技发展有限公司
A monitoring alarm and drainage device for ponding water level in all road conditions
ActiveCN105651359BPrevent waterloggingImprovement of infrastructure levelMachines/enginesLubrication indication devicesDisplay deviceUrban water
The invention provides a full road condition ponding water level monitoring alarm and drainage device and belongs to the field of ponding monitoring alarm and drainage devices for traffics. The device is characterized by comprising a road ponding monitoring device, an overpass tunnel ponding monitoring device, a water level monitoring display device, a water level monitoring alarm device and an automatic drainage device. The road ponding monitoring device and the overpass tunnel ponding monitoring device are connected with the water level monitoring display device. The device can monitor the ponding water level of various road conditions in real time, and transmit data to a monitoring center in real time, and the data can also be directly displayed to serve as action reference for municipal administration and passers-by. In addition, the device can drain water intelligently and actively according to the monitored water level data, and urban water logging is avoided.
Owner:SHANDONG XINGZHI INTELLIGENT TRANSPORTATION TECH CO LTD
Real-time on-line monitoring device for power-frequency electromagnetic data
InactiveCN102109557BSolve supply problemsSolve the problem of large interference errorsElectromagentic field characteristicsComputer moduleEngineering
Owner:SOUTHEAST UNIV +1
Rainfall monitoring network and method using fiber grating siphon rain gauge
ActiveCN103345004BEffective combinationHigh precisionRainfall/precipitation gaugesICT adaptationSiphonFiber
The invention provides a rainfall monitoring network and a rainfall monitoring method through utilization of a fiber bragg grating hydrocone type rain gauge. The monitoring network includes a rain gauge array (18) and a signal generation and demodulation unit (19) which is connected with the rain gauge array (18) through an optical fiber coupler array (15). The rain gauge array (18) comprises a plurality of rain gauges (16) with internally arranged fiber bragg gratings (5), and the rain gauges (16) are connected through optical fibers (17). The rainfall monitoring network can monitor rainfall capacity of multiple spots in real time, and has the advantages of being high in measuring precision, strong in anti-jamming capability, capable of achieving automatic monitoring and free of remote power supply, and has great significance in hydrologic meteorological monitoring.
Owner:HUAZHONG UNIV OF SCI & TECH
Slope real-time bearing capacity limit monitoring method and system
InactiveCN111148059AAvoid lostScientific and accurate methodMeasurement devicesParticular environment based servicesMonitoring siteMathematical model
The invention discloses a slope real-time bearing capacity limit monitoring method. The method comprises the following steps: (1) detecting and investigating a site environment, a landform, a site structure and historical conditions; (2) determining a monitoring scheme according to a detection result, wherein the monitoring scheme comprises mechanical property indexes, the number of monitoring points, arrangement positions and frequencies; (3) establishing a monitoring mathematical model; (4) arranging sensors at monitoring points, and collecting monitoring data, and uploading the monitoring data to a cloud server; (5) receiving and storing, by the cloud server, the monitoring data and analyzing the monitoring data in real time by combining the monitoring mathematical model to obtain a real-time safety coefficient FOSins; and (6) sending different levels of early warning signals to the monitoring terminal according to the real-time safety factor FOSins value. The invention further discloses a slope real-time bearing capacity limit monitoring system. According to the method and system, site material characteristics and actual force stability are considered, the site real-time safetylevel is evaluated at any time in combination with the cloud server technology, personnel safety escape time is reserved, and personnel property loss is avoided.
Owner:北京国泰佳业科技发展有限公司
Farmland or slope runoff water flow monitoring device
InactiveCN102455200BImprove real-time performanceSimple structureTransmission systemsStationary measuring chambersSiphonExhaust valve
The invention discloses a farmland or sloping field runoff water flow monitoring device which comprises a runoff water collector for collecting farmland or sloping field runoff water, a siphon used for siphoning the runoff water from a siphon water inlet valve to a siphon generator through a siphon water outlet valve, a siphon water inlet valve for controlling flow direction of the runoff water in the runoff water collector under the control of a water inlet valve floater, a water inlet valve floater arranged below the siphon water inlet valve, a connecting rod connecting the siphon water inlet valve with the water inlet valve floater, a siphon exhaust valve being used for injecting water in the siphon and exhausting air in the siphon and being closed when the siphon is filled with water, a siphon water outlet valve used for guiding the water in the siphon to the siphon generator, a pressure sensor used for sensing a liquid level pressure parameter in the runoff water collector and storing the liquid level pressure parameter, and the siphon generator being provided with an overflow hole and having a liquid level height of less than that in the runoff water collector. By applying the invention, runoff monitoring instantaneity and runoff measurement precision can be improved.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
Tower deformation and conductor galloping risk assessment model based on typhoon weather
PendingCN113239506ALong monitoring distanceLow costDesign optimisation/simulationResourcesConductor gallopPower grid
The invention discloses a tower deformation and conductor galloping risk assessment model based on typhoon weather, and the model comprises a remote management terminal, at least one electromagnetic wave sensor and at least one deformation detector; the remote management terminal transmits an ultra-wideband electromagnetic wave signal; the electromagnetic wave sensor receives electromagnetic waves; and the deformation detector detects the deformation quantity inverted by using the phase change difference value of the echo signal. The tower deformation and conductor galloping risk assessment model based on typhoon weather is long in monitoring distance, can realize multi-point monitoring, is not limited by meteorological environment, and can realize real-time continuous all-weather monitoring; the technology of simultaneous extraction of multiple observation points of the tower and deformation measurement is utilized to realize multi-point measurement and achieve the purpose of monitoring conductor galloping and tower deformation, so the cost is low, thereby ensuring that evaluation and timely early warning of tower state operation are well realized, the safety of a power transmission line is ensured, the occurrence of power grid accidents is reduced, the trip-out rate of a power grid is reduced, and reliable operation of a power grid is greatly improved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD QUZHOU POWER SUPPLY CO
Airport runway lamplight detection system
InactiveCN109443713AComprehensive inspection of actual damageRealize multi-point monitoringBatteries circuit arrangementsTransmission systemsMicrocontrollerControl system
The invention relates to an airport runway lamplight detection system which comprises runway lamplight, lamp holders, screws, pressure sensors, a single-chip microcomputer control system, a sending device, a receiving device and a computer terminal, wherein the lamp holders are fixedly arranged on the two sides of the designated position of an airport runway through the screws, the pressure sensors are arranged between a runway lamplight installation surface and the lamp holders, one half of the pressure sensors are embedded in the lamp holders and corresponding to the bottoms of screw holes,the single-chip microcomputer control system is connected with a plurality beams of runway lamplight through wires, the sending device is connected with the single-chip microcomputer control system through a wire circuit, the sending device and the receiving device are in communication through electromagnetic waves, the receiving device is in communication connection with the computer terminal through a wire, and by use of the airport runway lamplight detection system which comprises the pressure sensors, the single-chip microcomputer control system, the sending device, the receiving device and the computer terminal, the installation stability of the runway lamplight in subsequent work can be detected in real time, and a large amount of manpower and material resources are saved.
Owner:SONGFEI IND GRP CO LTD
Laser-based high-formwork vertical rod displacement monitoring device and early warning method
PendingCN113865489AMulti-point displacement synchronous real-time monitoringReal-time monitoring of multi-point displacementUsing optical meansLaser transmitterLight beam
The invention relates to the technical field of building construction monitoring, in particular to a laser-based high-formwork vertical rod displacement monitoring device and an early warning method.The laser-based high-formwork vertical rod displacement monitoring device comprises a monitoring module, and the monitoring module comprises laser emitters, laser receivers, an analyzer and displacement follow-up parts; the plurality of laser emitters and the plurality of laser receivers are respectively arranged on the side of a high-formwork transverse rod and the side of a high-formwork vertical rod in pairs, laser beams between each pair of laser emitter and laser receiver are vertical or parallel to the ground, and the plurality of displacement follow-up parts are arranged on the high-formwork vertical rod. Any one displacement follow-up part is subjected to displacement change along with the high-formwork vertical rod where the displacement follow-up part is located, the analyzer is connected with the laser transmitter and the laser receiver, and multi-point monitoring of the high-formwork vertical rod and accurate positioning of the position where the displacement of the high-formwork vertical rod exceeds a preset value can be achieved.
Owner:JILIN UNIV
Immersion-type ultraviolet-visible spectrophotometer detection head and detection method
InactiveCN110441237ARealize real-time monitoringTo achieve the effect of real-time monitoringColor/spectral properties measurementsFiberLight beam
The invention discloses an immersion-type ultraviolet-visible spectrophotometer detection head, and particularly relates to an ultraviolet-visible light source and an ultraviolet-visible spectrophotometer detection head. The invention provides the ultraviolet-visible spectrophotometer detection head which is separate from a main machine, is small, and can be placed directly in water to realize real-time detection. The ultraviolet-visible light source is formed by a xenon lamp and a tungsten lamp, and an ultraviolet-visible light beam is formed by combining through a coupler to be used as the light source. The detection head specifically includes incident optical fiber, an incident optical fiber connector, an incident optical reflector, an incident optical fiber collimator, an isolating plate, an outgoing fiber collimator, an outgoing optical fiber connector and outgoing optical fiber. The detection head is connected with the light source and an optical splitting system through ultraviolet optical fiber.
Owner:重庆冠雁科技有限公司
Coke oven group oxynitride detection method
The invention discloses a coke oven group oxynitride detection method. The method comprises the following steps of: setting two sampling points on two sides of a chimney partition wall in two coke ovens of a coke oven group by adopting a time domain partition sampling technology, respectively carrying out time domain partition batch-type sampling on smoke of the coke oven A and the coke oven B, and respectively measuring the contents of oxynitrides in the coke oven A and the coke oven B and content of oxynitride of total smoke through a model operating system, wherein the contents of oxynitrides of the coke oven A and the coke oven B are used for providing data for technological operation guidance, and the content of oxynitride of the total smoke is used for providing data for environmental protection monitoring. The method provided by the invention uses one set of oxynitride detection equipment for realizing detecting oxynitrides in two ovens, therefore, the equipment investment is reduced, and the measurement accuracy is high.
Owner:鞍山翰玛传感技术有限公司
Online monitoring device and method of grounding current of iron core of transformer
ActiveCN102411084BShield electromagnetic interferenceEasy to installMeasurement using digital techniquesOvervoltageHemt circuits
The invention provides an online monitoring method of grounding current of an iron core of a transformer, and the method comprises the following steps: (1) sheathing a straight-through current transformer on a grounding wire of the iron core of the transformer for getting a primary iron core grounding current signal; (2) utilizing the straight-through current transformer to convert the acquired primary current signal into a secondary current signal and converting the secondary current signal into a voltage signal; (3) performing gear position switching and amplification treatment on the voltage signal, and further sending the signal to an AD (analog / digital) circuit arranged in a controller via a voltage signal conditioning circuit; and comparing with a pre-set alarm threshold, and using the controller to control a display screen to display an alarm signal when the signal is abnormal; and (4) on the one hand, displaying the signal after calculation treatment in the step (3) through the display screen, on the other hand, storing measurement result and measurement time in a FLASH memory. The method is widely suitable for online monitoring of the grounding current of the iron cores / clamping pieces of the transformers, reactors and other electrical equipment.
Owner:NORTHEAST POWER SCI RES INSTITUTION +3
Battery cell assembly, battery module and battery system
PendingCN114243178ACentralized and regular layoutOptimize layoutCell component detailsEngineeringStructural engineering
The invention relates to the field of batteries, and provides a battery cell assembly, a battery module and a battery system. The battery cell assembly comprises two battery cell units, a supporting plate and an insulating support, the two battery cell units are arranged in an array mode in the thickness direction, and the two ends, in the length direction, of each battery cell unit are connected with sealing edges; the supporting plate is arranged between the two battery cell units and is fixedly connected with the two battery cell units; the insulating bracket comprises a main body which is fixedly connected to the end part of the supporting plate and is arranged between the sealing edges of the two battery cell units, a fixing hole is formed in the main body, and the extending direction of the fixing hole is vertical to the length direction of the battery cell units. Based on the structure, the end part of the battery cell assembly can be directly fixed through the fixing hole, and the main body can share a space with the sealing edge in the length direction of the battery cell assembly without additionally increasing the size of the battery cell assembly in the length direction, so that the ratio of the length of the battery cell unit to the length of the battery cell assembly is favorably increased; and the utilization rate of the battery cell assembly in the length direction is greatly improved.
Owner:EVERGRANDE NEW ENERGY TECH SHENZHEN CO LTD
Coupler clamping device and control method thereof
PendingCN111762221AImprove accuracyRealize multi-point monitoringRailway coupling accessoriesEngineeringMechanical engineering
The invention relates to the field of trains, and provides a coupler clamping device and a control method thereof. The device comprises a mounting base, a moving shaft, a sleeve, a first clamping jaw,a second clamping jaw and a plurality of pressure monitoring assemblies. The first clamping jaw and the second clamping jaw are oppositely arranged, and a plurality of mounting holes used for mounting the pressure monitoring assemblies are arranged in clamping surfaces of the first clamping jaw and the second clamping jaw; and each pressure monitoring assembly comprises a pressing column, a pressure sensor and a reset piece, the reset piece is arranged between the pressure sensor and the pressing column, a first end of the pressing column extends into the mounting hole, and a second end of the pressing column extends out of the mounting hole. The control method comprises the following steps: judging whether each detection value is smaller than a preset pressure value or not, counting thenumber Y of the detection values smaller than the preset pressure value, and if Y is equal to N, starting an alarm; and judging whether each detection value is equal to zero, counting the number Z ofthe detection values equal to zero, and if Z is greater than zero, starting the alarm. In the invention, multi-point monitoring is realized, and accuracy of a monitoring result is significantly improved.
Owner:BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
Multi-point displacement sensor for slope monitoring based on optical fiber bending loss
ActiveCN108106543BRealize distributed monitoringLow priceUsing optical meansSlope monitoringMechanical engineering
The present invention relates to a slope monitoring multi-point displacement sensor based on fiber bending loss. The sensor comprises a plurality of displacement sensing units, there are one or more than one displacement sensing units which are connected in series in order, and each displacement sensing unit comprises one protective cover, one right connection leading optical fiber, one upper endtop plate, one capillary steel pipe, base materials, one lower end bottom plate, one left connection leading optical fiber and one optical fiber bow-tie modulation mechanism; the protective covers areconnected with the upper end top plates through bolts; the upper and lower surfaces of the base materials are fixedly connected with the upper end top plates and the lower end bottom plates; an axlewire of the base materials is provided with a guide groove hole, the capillary steel pipes pass through the guide groove hole, the lower ends of the capillary steel pipes are fixed at the lower end bottom plates, the upper ends of the capillary steel pipes are connected with the optical fiber bow-tie modulation mechanisms, and anchor heads are fixed at the lower surfaces of the lower end bottom plates; and the optical fiber bow-tie modulation mechanisms are arranged in the protective covers. The slope monitoring multi-point displacement sensor based on the fiber bending loss solves the problems of slope internal displacement distribution and remote real-time monitoring.
Owner:HEBEI UNIV OF TECH
Marine confined space environment monitoring device, method and system
PendingCN114719896AReduce false alarm rateGood sealingMeasurement devicesDrying AgentsEnvironmental monitoring
The invention discloses a marine closed space environment monitoring device, method and system, and belongs to the field of environment monitoring, the marine closed space environment monitoring device comprises a liquid leakage sensor, a temperature and humidity sensor and an environment monitoring processor, and the liquid leakage sensor and the temperature and humidity sensor are reasonably arranged in a closed cabin; an environment monitoring processor is used for monitoring the liquid leakage condition, temperature and humidity in a cabin in real time, false alarm of a liquid leakage sensor caused by condensation due to too high atmospheric humidity and temperature difference is eliminated, and meanwhile, a liquid leakage accident is reported, and / or a drying agent failure and / or a temperature abnormity problem are reported. According to the invention, the false alarm of the liquid leakage sensor caused by condensation due to too high atmospheric humidity and temperature difference is eliminated, and liquid leakage monitoring with low false alarm rate and abnormal state reporting are realized.
Owner:SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
An electromagnetic early warning system and method for safety monitoring
ActiveCN105510983BRealize multi-point monitoringImprove measurement efficiencyElectric/magnetic detectionAcoustic wave reradiationEarly warning systemComputer module
The invention relates to an electromagnetic-method early-warning system for safety monitoring and an electromagnetic-method early-warning method. The electromagnetic-method early-warning system comprises the components of a transmitter, a transmitting coil, a receiver, receiving probes and an upper computer with a monitoring processing module. The transmitter is connected with the transmitting coil. The receiver comprises a main receiver and n (n>=1) auxiliary receivers. The main receiver is connected with the transmitter. The n auxiliary receivers are respectively provided with a receiving probe. The transmitter, the main receiver and the n auxiliary receivers are respectively provided with an Ethernet interface. The corresponding Ethernet interfaces on the transmitter, the main receiver and the n auxiliary receivers are connected with the upper computer through a switch. The electromagnetic-method early-warning system for safety monitoring according to the invention is advantageous in that multiple-point monitoring can be realized through utilizing the plurality of auxiliary receivers; measurement efficiency is improved; and the monitored data can be transmitted to the upper computer in real time for being processed, thereby performing an early-warning function.
Owner:武汉地大华睿地学技术有限公司
A Weak Reflection FBG-Fizeau Sensing Device
ActiveCN106643841BLower performance requirementsRealize multi-point monitoringConverting sensor output opticallyPolarization-maintaining optical fiberPolarizer
The invention provides a weak reflection-FIZEAU sensing device comprising a sensing end used for reflecting multiple scanning laser with different wavelengths and a demodulating end used for demodulating optical signals reflected by the sensing end to obtain a measurement result, wherein the sensing end comprises an optical circulator and a polarization maintaining optical fiber, weak reflection FBG-FIZEAU optical fiber resonant cavities in the same as the scanning laser wavelengths are arranged in each segment of polarization maintaining optical fiber, and each segment of polarization maintaining optical fiber is correspondingly provided with a serially connected optical circulator; and the demodulating end comprises a multi-wavelength scanning laser, a polarization controller, a linear polarizer, an optical switch, a wavelength division multiplexer, a photoelectric detector and a signal analysis module. Compared with the prior art, high-precision demodulation is realized by measuring the stripe contrast of sensing signals, the requirements on the performance of the wavelength scanning laser are not high, and a reference sensor is omitted, so that the system is simple, and the cost is low.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
Electromagnetic-method early-warning system for safety monitoring and electromagnetic-method early-warning method
ActiveCN105510983ARealize multi-point monitoringImprove measurement efficiencyElectric/magnetic detectionAcoustic wave reradiationEarly warning systemComputer module
The invention relates to an electromagnetic-method early-warning system for safety monitoring and an electromagnetic-method early-warning method. The electromagnetic-method early-warning system comprises the components of a transmitter, a transmitting coil, a receiver, receiving probes and an upper computer with a monitoring processing module. The transmitter is connected with the transmitting coil. The receiver comprises a main receiver and n (n>=1) auxiliary receivers. The main receiver is connected with the transmitter. The n auxiliary receivers are respectively provided with a receiving probe. The transmitter, the main receiver and the n auxiliary receivers are respectively provided with an Ethernet interface. The corresponding Ethernet interfaces on the transmitter, the main receiver and the n auxiliary receivers are connected with the upper computer through a switch. The electromagnetic-method early-warning system for safety monitoring according to the invention is advantageous in that multiple-point monitoring can be realized through utilizing the plurality of auxiliary receivers; measurement efficiency is improved; and the monitored data can be transmitted to the upper computer in real time for being processed, thereby performing an early-warning function.
Owner:武汉地大华睿地学技术有限公司
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