57results about How to "Realize fault alarm" patented technology

The invention relates to the power distribution net monitoring field and provides a real-time state monitoring recognition method for indicator lights of a power device fault indicator. In the method, digital video signals collected by image collecting equipment of a camera, and the like are processed; video frames are extracted from the video signals; monitoring targets are determined, that is the target region of each indicator light in the video frames, and corresponding numbers are distributed; the pixel color change and the intensity roughness of each indicator light in the target regions of two adjacent frames are used for identifying the flash alarming of the fault indicator; specific conditions of faults are determined according to the identified target numbers of the flash alarming and the combinations thereof; the result is real-timely transmitted to a backstage by a distribution communication network to remind working personnel of the fault happening. The real-time state monitoring recognition method realizes the real-time monitoring recognition alarming for the light state of the fault indicator of the power equipment, ensures the reliability of a system, facilitates the installation and the modification of the system and guarantees the safety of installing and maintaining personnel.

The invention discloses a hydraulic cylinder test bench load simulation device and a control method thereof. The hydraulic cylinder test bench load simulation device comprises a test bench frame, a control system, a loading hydraulic cylinder and a tested hydraulic cylinder, wherein the control system comprises an industrial personal computer, a PLC (programmable logic controller), a positional system control module and a loading system control module, the industrial personal computer sends a displacement signal to the PLC to drive the tested hydraulic cylinder to run, a displacement sensor detects the displacement signal of the tested hydraulic cylinder, the displacement sensor feeds the displacement signal back to the positional system control module so as to adjust displacement of the tested hydraulic cylinder on the one hand, and sends the displacement signal to the industrial personal computer on the other hand, the industrial personal computer converts the displacement signal into a simulation resultant force signal, and sends the simulation resultant force signal to the loading system control module so as to drive the loading hydraulic cylinder to perform opposite vertex loading on the tested hydraulic cylinder, and simultaneously a pull pressure sensor detects a pull pressure signal, and feeds the pull pressure signal back to the loading system control module after comparing the pull pressure signal with the simulation resultant force signal so as to form force negative feedback control. The hydraulic cylinder test bench load simulation device and the control method thereof achieve high automation of the hydraulic cylinder test bench load simulation device, and is high in accuracy and strong in practicability.

The disclosed image processing and recognition method for real-time monitor on power high-voltage circuit breaker comprises: with camera, decoder and video server, sending acquired signal to monitor center for remote video monitor; extracting target picture to recognize the ON / OFF state by sorting match with color and character structure features for fault analysis with accuracy ratio more than 98%. This invention can improve information level for power system.

The invention discloses an intelligent power distribution network outdoor broken circuit monitoring device. The intelligent power distribution network outdoor broken circuit monitoring device comprises a breaker main body; the breaker main body is provided with a power supply module, a control module and a sampling module; the control module and the sampling module are respectively connected to the power supply module; the control module comprises a single-chip microcomputer controller, a signal processing module and an intelligent driving controller; and the control module and the sampling module are connected through a transmission module. The intelligent power distribution network outdoor broken circuit monitoring device can realize a function of switching on and off a circuit load and isolating a fault, realizes an on-site control operation and realizes a remote control operation through a front end collection device receiving a system order. The intelligent power distribution network outdoor broken circuit monitoring device not only finishes data collection, wherein the data includes data of three-phase current, voltage, a breaker state, etc, but also realizes remote fault alarm, and can detect an interphase short circuit fault of the circuit, a single-phase grounding fault and transmits fault information to an automation main station.

The invention discloses an unmanned vessel autonomous navigation system and a working method thereof. The system comprises an unmanned vessel autonomous navigation control unit and a ground control center, wherein the unmanned vessel autonomous navigation control unit includes a navigation system module, a guidance system module, a data acquisition system module, a propulsion system fault alarm monitoring system module, a navigation control system module and a wireless communication system module. In the invention, the influence of stormy wave flow marine environmental disturbance and obstacles in the navigation sea area on the unmanned vessel autonomous navigation system is taken into consideration, and rules in Convention on the International Regulations for Preventing Collisions at Seaand characteristic parameters and control performance of the unmanned vessel are taken into account in route planning. In addition, the system has fault alarming and fault-tolerant control functions.The system further comprises a ground control center which can remotely monitor the unmanned vessel so as to improve the rationality and practicability of the unmanned vessel autonomous navigation system. The system can monitor the unmanned vessel and marine environmental information of the navigation sea area in real time, thereby improving the safety and reliability of autonomous navigation of the unmanned vessel.

The present invention provides a switch machine control unit integrated training platform, relating to railroad experiment training teaching equipment. The platform comprises a training table, a control cabinet and a main control circuit. The control cabinet is positioned on the training table by a support plate. A safety relay and a circuit breaker are positioned on the support plate. The operation control panel of the control cabinet is provided with a track light band, operation buttons, indication lamps, a signal repeater, a current meter and an LCD screen. The main control circuit comprises a power supply module, a switching unit module, a 6502 electric centralized control circuit, a computer interlock control circuit and a turnout control unit circuit. According to the training platform, the space occupation is small, the manufacturing cost is low, a plurality of experiment training programs can be carried out, the turnout control unit study and the computer interlock control principle study can be effectively carried out, and the field teaching needs of railway electrical work departments and railway colleges are satisfied.

The invention discloses a demarcation circuit breaker device, comprising a high-voltage vacuum demarcation circuit breaker body and an intelligent protection terminal, wherein the high-voltage vacuum demarcation circuit breaker body is internally provided with a zero sequence current mutual inductor and two current transformers; a voltage transformer is arranged at the power side of the high-voltage vacuum demarcation circuit breaker body; the intelligent protection terminal arranged on a field distribution line comprises a protection device for protecting the distribution line and measuring the operation state of the distribution line and a GPRS communication module; the protection device is directly connected with the high-voltage vacuum demarcation circuit breaker body by an omniseal airproof aviation connector and an outdoor sealing cable, and is connected with the GPRS communication module by a serial interface; and the operation power and the voltage signals of the intelligent protection terminal and the high-voltage vacuum demarcation circuit breaker body are all provided by the voltage transformer. The invention can be widely used in 10kV and 13 kV overground ring network lines as a sectionalizer switch and an interconnection switch, and can implement an automatic switching device deployed by ring network load.

The invention provides a cloud-based fused magnesia smelting process mobile monitoring system and a cloud-based fused magnesia smelting process mobile monitoring method, which relate to the field of industrial process monitoring technologies. The cloud-based fused magnesia smelting process mobile monitoring system comprises a local server, a cloud server and a mobile terminal, wherein the local server transmits magnesia smelting data of a local monitoring system in a factory to the cloud server in real time; the cloud server stores and updates the real-time data acquired in field, runs a message pushing server-side program and an algorithm program, and provides data access and auxiliary decision support for the mobile terminal; and the mobile terminal is mainly used for displaying states and data, providing data for the cloud server and requesting the server to perform calculation, and returning and displaying a calculation result. According to the cloud-based fused magnesia smelting process mobile monitoring system and the cloud-based fused magnesia smelting process mobile monitoring method, the APP mobile monitoring system with complete function and convenient use is established, and the timely and intuitive magnesia smelting process can be provided for enterprise managers anytime and anywhere, thereby providing the auxiliary decision support for the operators.

The invention relates to the field of general and wide power control application, in particular to an asynchronous motor, comprising stators and rotors; in the asynchronous motor, two groups of rotor-stator structures are installed coaxially; one group is a power rotor-stator structure which is composed of main stators and main rotors; the main rotors are formed by embedding a main internal rotor into a main external rotor; a cavity is formed between the main internal rotor and the main external rotor; a phase-change magnetic material is arranged in the cavity; the main internal rotor is connected with the output shaft of the motor; the other group is a control stator-rotor structure which is composed of secondary stators and secondary rotors; the secondary rotors and the main internal rotor are installed coaxially. The outside adopts a standard motor holder structure with a huge wiring control box and the real-time control for the motor is realized; the inside adopts the two groups of the rotor-stator structures; a flowing phase-change magnetic material is filled between the internal rotor and the external rotor, so that the motor automatically has the technical features of current limitation, flexible transmission (starting), controlling of temperature rising, overloading protection, high efficiency and energy conservation and the like.

The invention discloses a rhythm control system of a clothing production line, comprising an upper computer, a main control machine and an intelligent node. The main control machine is in communication connection with the upper computer, and the main control machine is in communication connection with the intelligent node; the main control machine sends a production rhythm signal to the intelligent node, the rhythm signal includes rhythm time and an intelligent node number, if the intelligent node completes the work of a work station in the rhythm time, a work signal for completing the work station is sent to the main controller, while if the intelligent node does not complete the work of the work station in the rhythm time, an over-time alarming signal is sent to the main controller; the main controller sends received production information signals of all work stations to the upper computer; and the upper computer carries out analysis processing on the received production information signals of all work stations and re-sets a rhythm signal of the main control machine. The invention has the advantages of synchronizing operations of each procedure, improving work efficiency, and also realizing fault alarm and talkback and guiding operators to work.

The invention provides a refrigerator. The refrigerator comprises a collecting circuit, a controller, a voice control circuit and a play circuit. The collecting circuit is used for collecting parameter information of the refrigerator. The controller is connected to the collecting circuit and judges whether a fault or an error exists in the refrigerator according to the parameter information, wherein if yes, the fault information or the error information is sent to the voice control circuit. The voice control circuit is connected to the controller and receives the fault information or the error information sent by the controller, determines the target voice content corresponding to the fault information or the error information and sends the target voice content to the controller. The play circuit is connected to the controller, receives the target voice content sent by the controller and plays the target voice content. Correspondingly, the invention further provides a voice prompt method for the refrigerator. According to the technical scheme, a user can directly judge the fault of the refrigerator according to the voice content, and the using experience of the user is enhanced.

The invention belongs to the field of street lamp illumination, and relates to a solar street lamp-based control system, single-lamp controllers and a centralized controller. The solar street lamp-based control system comprises a solar panel, a plurality of single-lamp controllers, the centralized controller, a monitoring center and an application terminal, wherein the solar panel supplies electricity to the single-lamp controllers; each single-lamp controller is connected with the centralized controller in a wireless communication manner; the centralized controller is connected with the monitoring center in a GPRS communication manner; and the monitoring center communicates with the application terminal by an Internet. One single-lamp controller is arranged on each lamp post; and each single-lamp controller can communicate with a plurality of electronic ballasts on the lamp post, so that a multi-channel lamp holder power supply on the lamp post is controlled; the on-off and the brightness of each lamp holder on the lamp post are controlled; the state of each lamp holder is monitored; flexible group control is carried out on the lamp holder on the lamp post; and various energy-saving control modes of every second lamp lighting, every third lamp lighting, an extinguishing slow lane lamp holder, brightness lowering at midnight and the like can be achieved.

The invention discloses a white roof panel laser soldering process control device. The process control device comprises a welding robot, a laser device, a welding head, a power meter and a process control cabinet, the process control cabinet comprises a programmable logic controller (PLC), the PLC is respectively connected with a remote control cabinet, the welding robot, the welding head and the laser device through a devicenet bus to transmit a control signal and perform data exchange, the power meter is connected with the PLC to transmit measured power to the PLC through analog quantity input / output (I / O) conversion, and the PLC is connected with an input displayer through an Ethernet to be used for setting process parameters, device control and device condition monitoring. According to the white roof panel laser soldering process control device, control functions in the white roof panel laser soldering production line of cars can be integrated, the welding quality and device stability are guaranteed, and simultaneously functions of fault display, fault warning and fault shutdown are achieved.

The invention discloses a real-time monitoring system and method for the condition of a netting of a deep-sea net cage. The system comprises a power supply module, a netting monitoring module, a wireless bridge module, a land monitoring center and the netting, wherein the power supply module supplies power to the netting monitoring module and the netting; one end of the netting monitoring module is connected with the netting to monitor the condition of the netting in real time, and the other end of the netting monitoring module is connected with the wireless bridge module to package monitoreddata according to a preset protocol and upload the monitored data to the land monitoring center. By means of the real-time monitoring system and method, the problems are solved that when the netting is damaged due to various reasons, the damage cannot be discovered in time, an effective measure cannot be taken in time, and the escape of fish products and the huge loss of fishermen are caused.

The invention discloses an intelligent image analysis system of a railway goods inspection robot. A robot erected beside a railway rail slides on a customized rail for routing inspection, and the appearance state and the cargo loading state of a freight boxcar are collected in real time, wherein the appearance state and the cargo loading state include the appearance damage, the physical deformation, the sealing state and the like, and the data is transmitted to a station intelligent analysis terminal through a station WIFI, a 5G technology or a wired transmission mode, so that the inspection content and an inspection result during the cargo inspection process are presented in real time. By combining the information, such as the cargo inspection professional inspection standard, the normalappearance state of the cargo boxcar, etc., through a rear-end image analysis software, and by means of a machine learning algorithm and the model comparison, the functions of automatic inspection, fault warning, early warning and the like of the appearance state and the cargo loading state of the cargo boxcar, are achieved.

The invention discloses a health monitoring method for an air entraining and / or air conditioning system of a civil aircraft. According to the invention, the health state of the air entraining system and / or the air conditioning system is monitored by setting event logic for actively monitoring the health state of the air entraining system and / or the air conditioning system in an airborne ACMS system and customizing a message format containing state parameters of the air entraining system and / or the air conditioning system; and when the event logic is triggered due to reduction of the health state, the ACMS collects the state parameters according to the customized message and triggers aircraft downlink ACARS message information to a ground engineering monitoring module. According to the method, the health state of the air entraining system and / or the air conditioning system of the aircraft is monitored, the method is simple to implement and has universality, when the health state of theair entraining system and / or the air conditioning system is reduced, the messages containing the state parameters of the air entraining system and / or the air conditioning system automatically descendto the ground, and the unit and ground maintenance personnel are assisted in knowing changes of system key parameters when a fault occur, so that maintenance troubleshooting and fault positioning arefacilitated.

The invention relates to an automatic releasing agent proportioning economizer for a die casting machine. The automatic releasing agent proportioning economizer is high in automation and control accuracy and comprises a liquid level sensor, a flow sensor, a pressure sensor, an electric energy transducer, a liquid level module, a flow module, a pressure module, an electric energy module, an original feedback system, a human machine interface (HMI) monitoring system, a communication module, an input interface, a central processing unit, a frequency transformer communication data interface, an output interface, a frequency transformer I, a frequency transformer II, a proportional valve and an external execution unit, wherein the flow sensor, the liquid level sensor and the pressure sensor are used for acquiring the flow of a raw material, the flow of water, a liquid level of a releasing agent dispensing pool and the pressure of a dispensing pump manifold in real time; the central processing unit is used for processing and regulating; and the execution unit is used for accurate execution. The automatic releasing agent proportioning economizer has the characteristics that: the raw material of a releasing agent is reduced, the production efficiency of the die casting machine is improved, electric energy is saved, pollution is reduced, automation of production management is realized,and impact on natural grid is reduced.

The invention discloses a condensed water drainage controller of an air conditioning system. The condensed water drainage controller comprises a power supply, a working liquid level sensor, a water pump detecting sensor, a main controller, a water pump, an executer, an alarming device and a fault indicating unit, wherein the working liquid level sensor and the water pump detecting sensor are used for transmitting water level information in a detecting water groove and a water pump working information to the main controller; the main controller is used for judging whether the water pump needs to be started through the executer to drain water or not according to a preset program; the main controller can be also used for transmitting a fault to the alarming device through the executer when the working liquid level sensor or the water pump fails to work; and the main controller is used for transmitting a fault type to the fault indicating unit. According to the invention, through the above method, the condensed water can be removed in time and the working time and overtime alarming time can be flexibly arranged in a random way; self-checking and fault alarming of the detecting part of the controller can be achieved; and the controller has the advantages of flexibility in working state setting, strong reliability, convenience in installation and maintenance and the like.

The invention discloses a fully-automatic high-head sewing machine. The fully-automatic high-head sewing machine comprises a support, an operating platform and a sewing machine body, the operating platform is fixedly arranged on the support, the sewing machine body is fixedly arranged on the operating platform and provided with an intelligent control mechanism and a sewing mechanism, a feeding mechanism is arranged at the position, opposite to the sewing mechanism, of the operating platform, multiple photoelectric sensor probes are arranged between the sewing mechanism and the feeding mechanism, a driving motor is further arranged below the operating platform and connected with the sewing mechanism, and the sewing machine body is further fixedly provided with an audible and visual alarm device. The fully-automatic high-head sewing machine is simple in structural principle, convenient to use, high in automation degree and capable of achieving multiple functions such as automatic sewing, automatic calibration and failure alarm, and sewing efficiency is improved.

The invention discloses a continuous compound energy supply system. The continuous compound energy supply system comprises a distributed energy system, a photovoltaic greenhouse system, a grid-connected system and an electric energy storage device with the output end connected to the grid-connected system. By the adoption of the continuous compound energy supply system, the utilization efficiency of energy reaches over 85% and meets the legal and policy requirements of development thermal energy gradient utilization and energy gradient utilization in China; and restriction on a photovoltaic greenhouse by the environment temperature and the weather conditions is eliminated, the bottleneck of original photovoltaic agricultural development is broken, and a new route and a new direction are provided for green agricultural production.

The invention discloses a water pump control method. According to a water pump control system, a water pump is controlled by a PLC (Programmable Logic Controller) system; the PLC controls start and stop of the water pump according to three judgment conditions of a water pump running current signal, a water pump outlet pressure signal and a liquid level signal with a water pump running state being served as a basic condition; a collected signal is compared with a set parameter when the water pump runs and synthetic judgment is performed with the liquid level signal serving as a basic judgment condition and in combination with a pressure signal and a current signal. According to the water pump control method, whether water inside the water pump is pumped off or not is according to the three judgment conditions, safe running of the water pump and failure warning through a detection sensor are achieved under a condition that a standby detection sensor is not added, the system stability and reliability is increased through the redundancy PLC and a standby module, automatic control of the system is completely achieved, unattended operation is achieved, labor is saved, the labor intensity of workers is released, and the system is convenient and practical in foundation ditch drainage engineering of foundation construction.

The invention belongs to a mechanical brake system of hoisting equipment, particularly relates to a downstream stepless speed regulating brake of backstop type hoists, comprising a single-directional self-locking type worm and gear speed reducer and a frequency-conversion brake motor (1). The single-directional self-locking type worm and gear speed reducer consists of a body (2), an output coupling (3), front and back end covers (5) and (17) of an output shaft, and a worm end cover (26). The downstream stepless speed regulating brake of the backstop type hoists is characterized in that: a worm (24) is arranged in the axially middle of the upper end in the body (2); a groove is arranged at the center of the left end of the worm (24) and connected with the output shaft of the frequency-conversion brake motor (1); and a keyway (24-1) is arranged in the groove and fixed by a key (1-1) arranged on the output shaft of the motor. With simple operation and accurate control, the downstream stepless speed regulating brake of the backstop type hoists can greatly save electric energy while realizing intelligent control such as failure alarming and automatic stop and the like, reducing heat of equipment, improving operating stability of the equipment and prolonging the service life of the equipment.

The invention relates to a cantilever type full-electric walking plate reinstallation vehicle which comprises two or more vertical columns (1), a long-rail supporting assembly (2), a cantilever mechanism (3), a mobile assembly (4), a clamp (5) and an electric control cabinet (6). The tops of the vertical columns (1) are provided with the long-rail supporting assembly (2). The side edge of the long-rail supporting assembly (2) is provided with the cantilever mechanism (3) which is provided with the mobile assembly (4). The bottom of the mobile assembly (4) is provided with the clamp (5). The electric control cabinet (6) is mounted on the outer sides of the vertical columns (1). The cantilever type full-electric walking plate reinstallation vehicle has the following advantages that firstly, the equipment is simple in structure and easy to assemble; secondly, the reinstallation vehicle can be remotely controlled and is convenient to operate and rapid and safe in operation; thirdly, working efficiency is improved; and fourthly, repair is convenient, and repair cost is low.

The invention relates to an arrangement method for a commercial photovoltaic power plant, and the method comprises the following steps: 1), determining a string distribution of a solar energy collection monolithic component and a position of an inverter C on a commercial photovoltaic power plant layout drawing; 2), determining the location of a junction box, the location of a commercial data concentrator connected with the junction box and a wiring routing orientation through the string distribution of the solar energy collection monolithic component; 3), building the actual power station according to the requirements of the commercial photovoltaic power plant layout drawing; 4), enabling a cloud platform server to establish a virtual power station according to the actual power station after the power station is built, and configuring parameters to form and assemble the network; 5), comparing the junction box bar codes on the solar energy collection monolithic component, performing thescanning through a code scanning unit, performing the networking, uploading the data to the cloud platform server, and enabling the cloud to monitor the data of the server in real time.

The invention discloses a sewage lifting control alarm which comprises a liquid level sensor, a water pump detection sensor, a main controller, an alarm device and a failure indication device, wherein the liquid level sensor and the water pump detection sensor are used for transmitting water level information of detecting sewage and water pump working information to the main controller, and a main processing unit of the main controller judges whether the drainage of a water pump is needed to be started or not. According to the mode, the sewage lifting control alarm is capable of self-checking a detection part of the controller and realizing failure alarm, and can provide limit liquid level alarm information under the limit conditions of outage and failure. The controller has the characteristics of strong reliability, convenience for installation and maintenance, and the like.

The invention provides a high-voltage circuit breaker capable of realizing loop closing judgment. The high-voltage circuit breaker comprises a circuit breaker body, wherein the body is arranged in a control box; the body comprises an arc extinguishing device, a mutual inductance current guiding device and an operating mechanism; the body is further provided with an energy taking device, a loop closing judgment module and a loop closing data module; the loop closing judgment module and the loop closing data module are connected with the energy taking device separately; the loop closing judgmentmodule comprises an FTU feeder terminal, a signal conversion device and a driving signal output device; the loop closing judgment module and the loop closing data module are connected through a communication device; and the loop closing data module comprises a voltage synchronization detection device, a voltage phase sequence detection device and a switch state detection module. According to thehigh-voltage circuit breaker, the loop closing condition can be judged, and the circuit loop closing operation can be realized; and meanwhile, remote control, isolation safety, data fast response andthe like can be improved, so that comprehensiveness, intelligence, economic benefits and high-quality social service benefits of high-voltage circuit breaker operation can be achieved.

The invention provides a wellhead pressurization reciprocating type natural gas compressor unit, comprising an integrated base, a separator adapting to wellhead gas quality, a reciprocating type compressor main machine adapting to pressure and flow fluctuation, a process gas pipeline, a lubricating oil system, an emptying system, a sound insulation room, a PLC control system, a sound-light alarm system, and the like. The unit is low in weight, compact in size and structure, free of foundation installation, and capable of implementing rapid installation, moving and debugging; and the gas flow of different wellheads is adapted by adjusting the number of the units. Each stage of gas inlet valve is provided with an unloader to implement single-action and double-action switching of compression of different stages of cylinders, so that the requirements of the unit for adapting to wellhead pressure and gas quantity changes are met. According to the wellhead pressurization reciprocating type natural gas compressor unit, the problems of large investment, high operation and maintenance cost and high environmental protection requirement of shale gas extraction, collection and transportation equipment are solved, and unattended operation and stable long-period operation of wellhead equipment are achieved.

The invention discloses a well water source lifting pump intelligent monitoring system. The well water source lifting pump intelligent monitoring system is characterized in that the system comprises an incoming line power switch, a current transformer, a compensation capacitor module, a control box, a fuse module, a three-phase smart meter, a collector, a remote controller, a water level sensor and a terminal; remote start and stop of a water source pump are achieved, fault alarm is achieved, the efficiency of starting and stopping the pump is ensured, the timeliness, accuracy and sufficiencyof fault finding are achieved, scientific and reasonable guarantees of water supply safety are achieved, reasonable and effective water supply control is achieved, pump starting is carried out immediately in a control center, a lot of manpower and material resources are saved, and a person does not need to rush to the scene.

The invention relates to an intelligent drain valve control feedback circuit of a vehicle gas path and a drain valve fault diagnosis method. A central processing chip is connected with a drain valve main control power supply and a controlled end of an intelligent driving module respectively through an output port, the output end of the intelligent driving module is connected with the positive control end of a drain valve and the cathode of a diode, the anode of the diode is grounded and idiostatic with the negative end of an external drain valve of a circuit, a VDD, a D1, an R1, an R2 and a GND form a low-voltage low-current loop, the crossing point of the R2 and the R1 is connected with the positive control end of the drain valve so as to conduct state sampling, another electric wire is leaded out of the crossing point of the R2 and the R1 to a sampling processing module through a current-limiting resistor R3 for tracking, the sampling processing module is connected to an ADC pin of the central processing chip, and the crossing point of the current-limiting resistor R3 and the sampling processing module is connected with a voltage-limiting voltage-stabilizing tube Z1 to the GND.