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57results about How to "Real-time monitoring operation" patented technology

Wearable type somatosensory control mechanical arm

The invention discloses a wearable type somatosensory control mechanical arm. The wearable type somatosensory control mechanical arm comprises a mechanical arm body, a wireless terminal data processing and transmitting system, a human body arm posture data collecting system and an arm control end data processing and transmitting system. The mechanical arm body is connected with the wireless terminal data processing and transmitting system, the human body arm posture data collecting system is connected with the arm control end data processing and transmitting system, and the arm control end data processing and transmitting system is in data communication with the wireless terminal data processing and transmitting system through wireless signals. The mechanical arm control scheme for directly controlling the mechanical arm body through the human body arm somatosensory can be applied to the industrial control field, the defect of a traditional mechanical arm control scheme is avoided, and rapid and effective control can be efficiency carried out through the human body.
Owner:SOUTHEAST UNIV

Pump remote intelligent control system based on mobile Internet

The invention provides a pump remote intelligent control system based on a mobile Internet. The pump remote intelligent control system based on the mobile Internet is a remote monitoring and control system. Signals of sensors are transmitted to a control center and a cloud processing system through a controller; workers in the control center can process the signals according to data; the cloud processing system can transmit the processed data to a mobile phone APP; a client can remotely monitor the running condition of a pump; and if the pump needs to be controlled, the rotating speed of a motor of the pump and the opening degree of an exit valve can be controlled directly through a mobile phone, and therefore the flow and the lift of the pump are controlled, and the pump can run on a high-efficiency point as far as possible. If the data exceed a preset value, an alarm can be given through the mobile phone, the client is informed of the situation, pre-warning is performed in advance, and large safety accidents are avoided.
Owner:YANTAI SUNSHINE PUMP

Acoustic signal based device and method for detecting gas pipeline leakages

The invention discloses an acoustic signal based device and method for detecting gas pipeline leakages. The detection device comprises an acoustic sensor group, a signal conditioner, an analog-to-digital converter, a data transmission medium and a central control computer. The detection method comprises that acoustic sensors are installed on a pipeline to be tested to collect signals, collected acoustic signals are subjected to signal conditioning through the signal conditioner, then voltage signals are converted into digital signals through the analog-to-digital converter, converted digital signals are transmitted to the central control computer through the data transmission medium, and an acoustic signal display, filtering, feature extraction and leakage judgment program which is written through LabVIEW software is installed in the central control computer. The device and the method have the advantages of being low in cost, high in device sensitivity, high in adaptability and the like.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Intelligent filter element manager device and use method thereof

The invention discloses an intelligent filter element manager device which comprises a manager body. An intelligent filter element management module is arranged in the manager body. Water quality parameters of cities nationwide and filter element configuration parameters and real-time monitoring operation control programs of various types of water purifier products are stored inside the intelligent filter element management module. The manager body is respectively provided with a display module and a key setting module. The intelligent filter element management module intelligently calculates the service life of filter elements of water purifiers according to information input by the key setting module. After use time of any filter element reaches the service life, the intelligent filter element management module outputs an electric signal to control the corresponding water purifier to stop operating. A use method of the intelligent filter element manager device includes the steps of communication connection establishment, city setting, water purifier setting and timing confirmation. According to the intelligent filter element manager device, a filter element replacement signal can be reasonably sent out according to the water quality condition of each region, so that drinking water quality is guaranteed, and the requirement for healthy drinking water of people is met.
Owner:ZHEJIANG QINYUAN WATER TREATMENT S T

High-temperature gas cooled reactor steam generator small-flow cooling system and control method

The invention relates to a high-temperature gas cooled reactor steam generator small-flow cooling system and a control method thereof, the cooling system comprises a main water feeding pump, a main water feeding isolation valve, and an auxiliary boiler room arranged in an auxiliary electric boiler between the main water feeding pump and the main water feeding isolation valve to generate auxiliarysteam, a steam generator heat exchange pipe is cooled through a main water feeding pipeline, a bypass small pipe is arranged on a main steam pipeline, after capacity expansion and temperature reduction, the steam is discharged into a pool for collection; temperature measuring points are arranged at an inlet and an outlet of a heat exchange tube of the steam generator, a high-precision regulating valve and a flow meter are arranged on a small bypass tube, opening and closing of the inlet and outlet temperature measuring points, the flow meter and the regulating valve are controlled in an interlocking mode, system operation is monitored in real time, auxiliary steam flow is regulated, the cooling rate is smaller than 5 DEG C / h while the cooling speed is increased, efficiency and safety factors are considered, and the economy of a power plant is improved.
Owner:HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER CO LTD

Artificial stone production system

The embodiment of the invention discloses an artificial stone production system, comprising a stirring device, a material distributing machine, a vibrating device and a pressurizing device, wherein the stirring device is used for evenly mixing raw materials; the material distributing machine is used for distributing the materials according to artificial stone textures; the vibrating device is used for vibrating the distributed materials; the pressurizing device is used for pressing the vibrated materials to form a green body; the stirring device, the material distributing machine, the vibrating machine and the pressurizing device are sequentially connected with one another through a conveyer. The artificial stone production system is applied to the field of artificial stone production; the productive task can be finished according to presetting; particularly, high-quality and high-fidelity simulation artificial stone can be prepared; automatic control can be achieved; the artificial stone production system has the characteristics of being high in production efficiency and high in product percent of pass.
Owner:贺州市鸿源岗石有限公司

Drying device for weaving

The invention discloses a drying device for weaving. The drying device for weaving includes a drying box, a pressing roller, transmission rollers and heating pipes, wherein an outer surface of the drying box is provided with a fabric inlet and a fabric outlet, a lower end of the fabric inlet is connected with first U-shaped plates, a fixed roller is disposed between the first U-shaped plates, thepressing roller is disposed at an upper end of the fixed roller, multiple sets of transmission rollers are disposed inside the drying box, one end of each of the transmission rollers is connected witha rotating gear, transmission gears are engaged between the rotating gears, a driving motor is connected with the bottom of the drying box, the driving motor is engaged with one set of the transmission gears through a driving gear, and a lower end of the center line of the fabric inlet and the fabric outlet is provided with multiple sets of heating pipes. The drying device has advantages of goodtransmission effect, high production safety and high work efficiency, can achieve automatic management and is mainly applied to drying of weaved fabrics.
Owner:湖州傲娇小公举服饰有限公司

Computer room IT device operation and maintenance method and system

InactiveCN106375134AReal-time monitoring operationQuickly Schedule TroubleshootingData switching networksDevice MonitorEngineering
The invention provides a computer room IT device operation and maintenance method and system. The method comprises the steps that a monitoring device monitors the operation of an IT device in real time, and sends the abnormal information of the IT device failure to a management platform; the management platform collects the abnormal information sent by the monitoring device, generates a maintenance form from the abnormal information according to the handheld terminal classification, and transmits the maintenance form to a handheld terminal; the handheld terminal receives the maintenance form transmitted by the management platform, collect first passive radio frequency card information on the IT device, and uses the first passive radio frequency card information to check whether the abnormal information of the IT device corresponding to the first passive radio frequency card information exists in the abnormal information; and the handheld terminal initiates maintenance operation to the IT device through the management platform. The IT device in the computer room uses a monitoring device to monitor the operation of the IT device in real time. The abnormal information is immediately sent to the management platform when the IT device is abnormal. According to the invention, all devices in the computer room can be checked and verified.
Owner:FUJIAN NEWLAND SOFTWARE ENGINEERING CO LTD

Motor controller of layering multinuclear structure and control method thereof

The invention relates to a motor controller of a layering multinuclear structure and a control method thereof. The motor controller comprises a power contravariant unit driving a motor to operate, an application interface function module, a motor control function module and a driving function protection module, the application interface function module sends state information of the controller to an external control system, receives control signals and sends control commands to the motor control function module; the motor control function module receives the control commands, detects states of the motor, completes control operation and sends control pulses to the driving function protection module; the driving function protection module receives the control pulses, processes the control pulses and sends the control pulses to the power contravariant unit; and the driving function protection module detects operating states of an inverter and controls the power contravariant unit. The motor controller is divided into three layers of independent systems from inside to outside and from bottom to top, the three layers of independent systems increase a driving layer system, a control layer system and an application layer system, all modules are tightly connected, functions are relatively independent, system breakdown is avoided under extreme cases, reliability is high, and safety is strong.
Owner:上海汽车电驱动有限公司 +1

Pet cage which can be controlled remotely

The invention provides a pet cage which can be controlled remotely. The pet cage comprises a pet activity chamber, a pet rest platform, a partition and a lower-layer chamber body, an illuminating lamp, a camera and a ventilation opening are arranged at the inner wall of the top of the pet activity chamber, and a first sensor and a temperature control device are embedded in the inner wall of the back face of the pet activity chamber; a disinfection and sterilization device is embedded below the first sensor and the temperature control device, a second sensor and a humidity removing device are embedded below the disinfection and sterilization device, and a food storage device and a water storage tank are arranged at the outer side of one side wall of the pet activity chamber; a first LED lamp and a second LED lamp are respectively arranged above the food storage device and the water storage tank, a cleaning device is arranged inside the lower-layer chamber body, and the cleaning device comprises a motor, a dust collector head and a dust collector body. According to the pet cage, self-timing feeding and water feeding are achieved, the temperature in the pet cage can be remotely controlled by a phone, disinfection and sterilization are achieved, automatic humidity removing is achieved, the pet cage can be automatically cleaned, and the intelligence is high.
Owner:湖州曜东服饰有限公司

Industrial Ethernet switchboard

The present invention discloses an industrial Ethernet switchboard, which can be applied to the fields of digitalized transformer substation, industry, military and transportation. The industrial Ethernet switchboard comprises: a housing, a power supply module, a plug-in module, a cascade plug-in module, a self-healing ring network module, a PHY module, an MAC chip module, a central processor unit module, an Atmega128 module, a CPLD module, a FLASH and so on. The present invention is an industrial Ethernet switchboard specifically designed for the environment of electric power automation and digitalisation transformer substation, possesses strong ability of resisting electromagnetic interference, excellent exchange performance due to an exchanging framework without obstruction, strong management storage capacity and intelligent management maintenance. When physical connection fault (N-1) occurs, protection switching can prevent the loss data packet, and ensure that the time-delay for communication recovery is 0. Thus, the invention can reduce manual operation, manual fault and operation costs. Moreover, the invention can fully satisfy the tough requirements on electric power environment and transportation environment, and can be also applied to digitalized transformer substation network, transportation monitor network and the like.
Owner:成都星宇融科电力电子股份有限公司

Automatic production line control system and automatic production line control method

The present invention is suitable for the automation control technology field, and provides an automatic production line control system and an automatic production line control method. The automatic production line control system comprises a service control end, a plurality of automatic operation devices, an assembly line, wireless radio frequency identifying and reading devices arranged at the corresponding stations of the automatic operation devices and a plurality of tooling boards equipped with the wireless radio frequency identification cards and arranged on the assembly line. The wireless radio frequency identifying and reading devices send the read current wireless radio frequency identification data to the service control end, the service control end answers whether to finish the work of the current station according to the preset operation set of a current wireless radio frequency identification data corresponding product or the finish situation of the prepositive station of the current wireless radio frequency identification data corresponding product, if yes, sends a preset operation instruction to the automatic operation device corresponding to the current station, and the automatic operation device corresponding to the current station executes the preset operation instruction and feeds back en execution result to the service control end. According to the present invention, the centralized control and monitoring of the plurality of automatic operation devices are realized.
Owner:SHENZHEN MEISITOO AUTOMATION CO LTD

Control cubicle environment comprehensive monitoring and treatment method and system

The invention discloses a control cubicle environment comprehensive monitoring and treatment method and system, which belong to the field of power systems, optimizes and integrates operation and inspection resources by means of Internet of Things multi-sensor intelligent sensing, artificial intelligence control and big data analysis technology means, realizes automatic acquisition, real-time uploading, visualization and remote sensing of environment information in a control cubicle, and realizes intelligent adjustment of the environment of the control cubicle. The system platform monitors thetemperature and humidity in the cubicle in real time through a temperature and humidity sensor arranged in the control cubicle. The system platform forms a control model training sample through temperature and humidity monitoring information in a plurality of substations, corrects a model between the characteristic quantity and the condensation defect of the control cubicle, and forms an information closed loop, thereby achieving the advanced adjustment and comprehensive control of the environment.
Owner:STATE GRID SHANDONG ELECTRIC POWER +1

Method of application program performance monitoring and system thereof

ActiveCN108255659AReal-time monitoring of application runningReal-time monitoring operationHardware monitoringTemporal informationComputer module
The embodiment of the invention discloses a method of application program performance monitoring and a system thereof. The monitoring method includes: acquiring a function module processing a servicerequest, wherein each function module corresponds to a group of multiple preset first buried points set on a client and a group of multiple preset second buried points set on a server; acquiring firsttime information according to a group of preset first buried points; acquiring second time information according to a group of preset second buried points; acquiring first processing time, which is used for indicating total consumed time of processing the service request, according to the first time information, and judging whether the first processing time exceeds preset processing time; if thesame exceeds the preset processing time, analyzing, according to the first time information, the second time information and preset rules, whether a network problem, a client problem or a server problem exists; and providing an optimization suggestion according to the existing problem. Through the above-mentioned method of the invention, real-time monitoring of running of an application program isrealized, and then an effect of analyzing and feeding back the problem in time is achieved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Intelligent wireless star finding control method

The invention relates to the field of astronomical observation technology, particularly relates to star finding through an astronomical telescope, and specifically provides an intelligent wireless star finding control method. The method includes the steps of obtaining geographic coordinate data, orientation and bearing data and observation angle data of a user; displaying a three-dimensional electronic star map on a display module; simulating, by a wireless control system, the orientation and bearing and an observation angle of the user, displaying stars seen from the current angle of view ofthe user, selecting a star to be observed; and performing, by a wireless control system, automatic compensation according to a solid angle error. According to the invention, the star to be observed can be quickly and accurately aligned by using an astronomical telescope, the state of the telescope can be monitored in real time, the operation of the telescope can be controlled in real time, a celestial body in the observation orientation can also be accurately simulated, and the observable ability of low brightness dark stars of the astronomical telescope is greatly improved. In addition, the simulation of various astronomical events by the user can be satisfied, and meanwhile, the existing mechanical errors can be calibrated.
Owner:佛山市顺德区博通光电有限公司

Hydroelectric power station data caching operation method and system

The invention discloses a hydroelectric power station data caching operation method and system, and belongs to the technical field of hydroelectric power station multi-source mass signal data storage. The method comprises the following steps: data attributes of hydroelectric power plant data are analyzed respectively from two aspects of data demand degree and time correlation, thereby obtaining cache priorities of the hydroelectric power plant data; then the cache priority of the data of the hydroelectric power plant corresponds to the cache level of the cache region, and the data with more frequent operation is correspondingly stored in the cache region with the higher cache level; the data of the hydroelectric power plant is cached, read and updated in a multi-level manner, so that the accuracy of the data is guaranteed, the problem that the cached data cannot be obtained due to the fact that a certain database cannot be connected is solved, the risk of data loss is controlled, the cache read-write speed is greatly increased, and safe and stable operation of the hydroelectric power station can be monitored in real time.
Owner:CHN ENERGY DADU RIVER REPAIR & INSTALLATION CO LTD +2

Simulation testing device and system based on EPOS

The invention provides a simulation testing device and system based on an EPOS. The simulation testing device is used for testing the EPOS which is an EPOS complete machine or an EPOS terminal main board. The simulation testing device comprises a main control unit, a network interface unit, a display interface unit, a card swiping slot interface unit, a keyboard interface unit and a power source unit. The network interface unit, the display interface unit, the card swiping slot interface unit, the keyboard interface unit and the power source unit are connected with the main control unit. The simulation testing device and system based on the EPOS achieve rapid and efficient simulation testing, and solve the problem that EPOS testing efficiency is low in the prior art.
Owner:FUJIAN CENTM INFORMATION

Intelligent control method and equipment for growing environment of medicinal fungus

The invention relates to an intelligent control method and equipment for the growing environment of a medicinal fungus. The intelligent control equipment for the growing environment of the medicinal fungus comprises a control terminal module, a central processing module, a communication module, an auxiliary module and a power module, wherein the control terminal module, the communication module, the auxiliary module and the power module are controlled through the central processing module, and the control terminal can be externally connected with electrical equipment to achieve accurate, real-time, comprehensive and intelligent control over the growing environment of the medicinal fungus. The intelligent control method and equipment for the growing environment of the medicinal fungus have the advantages of being capable of largely reducing the human resource cost in the growth process of the medicinal fungus, remotely or locally monitoring the operation of the electrical equipment in real time, and accurately sensing the parameters of the growth environment of the medicinal fungus, thereby guaranteeing that the growth process of the medicinal fungus is in the optimal environment constantly, reducing planting risks, and meanwhile improving the yield of the medicinal fungus.
Owner:广西小草信息产业有限责任公司

Real time data acquisition intelligent node device of power system based on lonworks network

The device includes data input part, data acquisition process part, and LonWorks network transmission part. DSP digit signal processor in data acquisition process part processes input data. Then, processed data are sent to network communication processor composed of LonWorks neural chip and transceiver. Collected data through network communication port configured in network communication processor and LonWorks network are communicated and transferred to up devices and other nodes. Asynchronous serial communication mode is adopted in data exchange between DSP and network communication processor. Network communication port configured by network communication processor to connect to LonWorks network is in single end mode.
Owner:CENT CHINA GRID

Automatic system for sewage disposal pumping station

InactiveCN101013317AControl the number of running unitsControl start and stopWater/sewage treatmentTotal factory controlEngineeringSewage
The invention discloses a sewage processing pump station automation system, mainly comprising the industrial control computer and the scene control system, in which the scene control system includes the influent control subsystem and the effluent control subsystem, and the influent and effluent control subsystems all comprising the liquid level sensor and the implementation body, and between the industrial control computer and the influent and effluent control subsystems, connecting through the scene bus, to realize the full process control automation from the sewage collection, treatment to emission; the invention uses the computer as a platform, simply, conveniently and effectively real-time monitoring the entire running process of the pump station. By the computer operation interface, the invention can intuitively process systematic detection and maintenance, and in addition, the system uses the distributed control technology which has centralized management and decentralized control, thus ensuring the system has high reliability.
Owner:ZHEJIANG UNIV

State monitoring device, anti-misoperation device and monitoring and anti-misoperation method of current terminal

The invention provides a state monitoring device, anti-misoperation device and monitoring and anti-misoperation method of a current terminal. The state monitoring device comprises a state monitoring module, a signal acquisition module and a signal processing module, wherein the state monitoring module comprises a plurality of current terminal state monitoring units, each current terminal state monitoring unit is used for monitoring input and exit states of each current terminal, the signal acquisition module is used for acquiring a monitoring result of the current terminal state monitoring unit and transmitting the monitoring result to the signal processing module, and the signal processing module is electrically connected with the signal acquisition module and is used for outputting a monitoring result according to a monitoring signal. By the state monitoring device, the problem of uncontrollable misoperation caused by dependence on management system and technical level, running experience and responsibility of a worker is solved, the operation of the current terminal is streamlined, personal and equipment accidents caused by manual misoperation can be reduced, and the safe running level of a power grid is improved.
Owner:ZHUHAI UNITECH POWER TECH CO LTD

Intelligent electric meter box with human body induction device

The invention discloses an intelligent electric meter box with a human body induction device. The intelligent electric meter box comprises the human body induction device and an intelligent electric meter box body. The human body induction device is installed in the intelligent electric meter box body and provided with a control module, a human body induction signal acquisition circuit, a data storage device, a GPRS communication module and a clock chip. The human body induction device is further connected with a JTAG emulator used for debugging and a 3.3V power supply module. A small through hole which is used for inducting light rays of human bodies is formed in the position, corresponding to an infrared sensor camera lens, of a shell of the human body induction device. By the adoption of the human body induction device, operation of the electric meter box and personnel operation conditions can be monitored in real time through a power supply management and monitoring center, and an effective guarantee is provided for safe and economical power supply.
Owner:STATE GRID CORP OF CHINA +2

Outdoor weak current equipment box

The invention discloses an outdoor weak current equipment box which comprises an equipment box body and a remote monitoring system. A door is arranged on the lateral wall of the equipment box body, the equipment box body is sealed, and the door and the lateral wall are sealed. The remote monitoring system comprises a data processing unit, a data exchanging unit and a power supplying detecting circuit, wherein the data exchanging unit communicates with a monitoring station, the data exchanging unit and the power supplying detecting circuit are connected with the data processing unit, and the data processing unit is arranged in the equipment box body. The outdoor weak current equipment box has the advantages that the equipment box can monitor situations of equipment operation and the like in real time, transmits data back to the monitoring station, notifies maintenance personnel if problems occur, and effectively reduces economic loss caused by equipment faults.
Owner:朱国梁

Linear motor system and control method thereof as well as photoetching machine applying linear motor system

The invention relates to the field of a newly-developing machining technology, and discloses a linear motor system. The liner motor system comprises a linear motor and a servo controller, wherein the servo controller comprises a control input, a main controller, a slave controller and two servers. The invention discloses a photoetching machine applying the linear motor system and a control method of the linear motor system. The servo controller provided by the invention can monitor the operation of the linear motor in real time, and the servo controller is fast in response speed, wide in control frequency and good in control randomness.
Owner:SHANGHAI FUXUN PHOTOELECTRIC CO LTD

Data visualization intelligent monitoring management system

The invention discloses a data visualization intelligent monitoring management system. The system comprises a sensing and monitoring device, an intelligent terminal device, a cloud platform, an Internet-of-things platform, a big data platform and an intelligent application support platform. The system has the advantages of real-time monitoring of pipe network operation, ordered pipelines, unifiedtypes and standards, high informatization level, automatic monitoring in the whole process, high construction standard and good quality. The problems as follows are solved: a water supply system needsto achieve 24-hour all-weather high-reliability uninterrupted operation and the operation state of a pipe network needs to be monitored in real time; the coverage area of a water distribution pipe network is huge, underground pipe networks interfere with one another and occupy disorderly, and water supply facilities are wide in range, complex in variety and different in specification standard; the environment where a pipe network is located is complex, the informatization level is insufficient, pipe network monitoring data is obtained mostly by manual monitoring, the monitoring means is backward, and rapid response cannot be achieved; and the pipeline facilities are hidden, the pipes are diversified, the construction standard is low, the quality is poor, and the pipeline facilities have not been repaired for many years.
Owner:西安卓辰网络科技有限公司

Storage battery remote maintenance system

The invention discloses a storage battery remote maintenance system. The storage battery remote maintenance system comprises a data acquisition module used for collecting voltage, current and temperature of each single battery in a storage battery pack in real time, a storage module connected with the data acquisition module and used for receiving the data collected by the data acquisition module and storing the data, an analysis module connected with the storage module and used for receiving the data sent from the storage module and analyzing the data, and an alarm module connected with the analysis module and used for performing alarm prompting when an analysis result from the analysis result indicates an abnormal state.
Owner:JIANGSU ZHONGHAN COMM TECH

Oil filtration intelligent test platform device

The invention relates to an oil filtration intelligent test platform device, belonging to the technical field of oil treatment. The oil filtration intelligent test platform device includes an oil source power portion, and a loop is formed after the oil source power portion is connected with an oil filtering portion through an oil way. The oil filtration intelligent test platform device also includes a power supply portion, the power supply portion is electrically connected with the oil source power portion, the power supply portion is also electrically connected with a data processing portion,the oil filtering portion performs oil filtration operation in a step filter mode, the step filtering of oils can be achieved, and intelligent switching between different accuracy grades during oil way filtering is achieved, oil operation and the smooth situation of a filter core are monitored in real time, filter core blockage abnormalities are found timely, the filter core is replaced timely, not only is the production input cost reduced, but also the service life of the whole device is prolonged, the operation is convenient, simple, fast and intelligent, the oil purification working efficiency is improved, and the customer's high-precision customization requirements for oil filtration are met.
Owner:SHANDONG INST OF AEROSPACE ELECTRONICS TECH

Fault online positioning method and device for cable overhead mixed line

The invention relates to a fault on-line positioning method and device for a cable overhead mixed line, and the method comprises the steps: setting detection points in each terminal station and a middle switching station in the mixed line, and obtaining a traveling wave voltage signal, a traveling wave current signal and a power frequency current signal in each detection point, the mixed line comprises a cable line and an overhead line; according to the change of a power frequency current signal in the whole mixed line, determining a preliminary fault positioning interval, and judging whether the fault belongs to a cable line fault or an overhead line fault; if the fault is the cable line fault, determining the position of a fault point through a traveling wave voltage signal in a detection point of an accessory of a preliminary fault positioning interval; and if the fault is the overhead line fault, determining the position of a fault point through a traveling wave current signal in a detection point of an accessory of the preliminary fault positioning interval. Compared with the prior art, the method has the advantages that the fault point can be accurately positioned, the cost is low, the installation is convenient and safe, and the fault finding time can be effectively shortened.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO

Annular network gateway

The invention discloses an annular network gateway which comprises an outer protection module, a power supply managing control circuit, a protocol expansion module, a protocol conversion module, an in-network communication module, a physical layer protocol supporting module, a protocol control module, a core control module, an input module, a storage module and the like. The annular network gateway is designed by specially aiming at an industrial automation and intelligent environment and under the industrial intelligent environment, the annular network gateway has a signal suppressing capability. A redundancy information transmission module does not exist. Under the condition of hard link failures (N-1), a safety mechanism can ensure that packages will not be lost and the communication recovery delayed time is zero. The management memory space is large and management and maintenance are intelligent.
Owner:KUNSHAN AODELU AUTOMATION TECH
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