5603 results about "Power equipment" patented technology

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem.

The invention discloses an intelligent inspection robot system for transformer substation equipment. The intelligent inspection robot system for the transformer substation equipment comprises a control center, a wireless communication network and an inspection robot, wherein the control center realizes remote control and data transmission with the inspection robot through the wireless communication network; the control center comprises an upper control host, an inspection monitoring data processing module and a robot remote control transmission module; and the inspection robot comprises a robot control unit, a robot body mechanism, a robot obstacle detection and navigation device, a robot remote control receiving module and a field signal acquisition and transmission device. The intelligent inspection robot system for the transformer substation equipment inspects power equipment in a transformer station through the inspection robot, transmits related data acquired in real time to the control center through the wireless communication network and displays the related data on related equipment, so that workers can remotely monitor the on-site working condition and the operation condition of the equipment conveniently, remote areas and unattended stations can be monitored remotely, and time and labor are saved.

The invention provides an electrical equipment state maintenance system. The electrical equipment state maintenance system comprises an operation and maintenance base layer platform, a state monitoring module, a state evaluation module, a risk assessment module, a fault diagnosis module and a maintenance strategy module, wherein production area I data of a power grid system and production area III data of the power grid system are integrated on the operation and maintenance base layer platform, the state monitoring module is used for collecting on-line monitoring data of electrical equipment and operating environment information of the electrical equipment through the operation and maintenance base layer platform, the state evaluation module is used for evaluating the on-line monitoring data according to state evaluation standards of the electrical equipment to acquire an electrical equipment health state represented by the on-line monitoring data, the risk assessment module is used for calculating the risk index of the electrical equipment according to risk assessment standards of the electrical equipment, the fault diagnosis module is used for diagnosing faults of the electrical equipment and generating a fault diagnosis report according to the health state and the risk index of the electrical equipment, and the maintenance strategy module is used for generating maintenance strategy information of the electrical equipment according to the health state, the risk index and the fault diagnosis report of the electrical equipment. By means of the electrical equipment state maintenance system, evaluation, assessment and predication are automatically carried out on the power grid system, and therefore the automation level and the intelligentization level of the power grid system are improved.

The invention discloses a positioning device and a positioning method for fault detection of local discharge, and the positioning device comprises two sensors, a local discharge detection positionfinder and a computer, wherein, the two sensors consist of an electromagnetic sensor and a resonant ultrasonic sensor; the local discharge detection positionfinder is internally provided with double-signal paths in parallel; the positioning device also comprises a data acquisition card and a liquid crystal display (LCD) which are connected with the output ends of the double-signal paths; one path of the double-signal paths is an electromagnetic path connected with a peripheral electromagnetic sensor, while the other path thereof is an ultrasonic channel connected with a peripheral resonant ultrasonic sensor; one path is displayed by the LCD connected with the acquisition card, and the other path is sent to a peripheral computer through data wires after signal received by the electromagnetic path and the ultrasonic path is processed by the acquisition card. The test method is simple and flexible, has easy operation and strong anti-interference performance, overcomes the defect of single detection method for local discharge in the prior art, and can realize accurate detection and position on local discharge fault points in power equipment.

The invention discloses a comprehensive monitoring and early warning system based on meteorology and a power grid GIS and a method thereof. The system comprises a data layer and an application layer. The data layer consists of a meteorological database, a power grid GIS database, and a production and operation database. The application layer includes a meteorological monitoring module, a meteorological early warning module, a power grid weather module, an information display module, and an auxiliary decision-making module. The meteorological database, the power grid GIS database, and the production and operation database carry out communication mutually; and the meteorological monitoring module, the meteorological early warning module, the power grid weather module, the information display module, and the auxiliary decision-making module carry out communication with the meteorological database, the power grid GIS database, and the production and operation database respectively. According to the invention, meteorological monitoring information like the temperature, wind direction, and wind speed and the like of important power equipment like a transformer substation, a transmission and transformation line, and a tower can be gotten in real time; and visual meteorological real-time data can be provided for the power grid. Meanwhile, prediction and disaster early warning information of the typhoon and thunder and the like can be provided every 12 hours in the next seven days.

The invention relates to a transformer substation electrical equipment monitoring, analyzing and processing system and particularly relates to a transformer substation electrical equipment comprehensive physical examination system based on cloud side end collaborative perception. The system is characterized in that multi-node detection and unified perception access are realized through an integrated communication network architecture on the edge side of a station end, an intelligent sensing terminal is comprehensively covered in real time. Meanwhile, local intelligent data processing is realized by utilizing an edge computing technology; an omnibearing intelligent diagnosis and analysis system of the transformer substation is constructed at a cloud end, and multiple functions such as abnormal real-time early warning and intelligent sensing prediction are realized, so that the real-time tracking of the operation state of the power equipment of the transformer substation is realized. Themethod has the advantages that the transformer substation can be covered, monitoring data can be comprehensively utilized, an intelligent processing scheme can be provided, construction of the intelligent transformer substation is promoted, and the intelligent evaluation and safety early warning level of the electrical equipment state of the transformer substation is improved.

The invention discloses a power equipment current-carrying fault trend prediction method based ona least squares support vector machine. The method provided by the invention comprises the steps of employing historical temperature data to train an LS-SVM regression model, and employing a PSO optimization algorithm to adjust two parameters of the model, namely nucleus width sigma and punishment parameter gamma; employing a PCA algorithm and a K-means clustering algorithm to real-time analyze the temperature of equipment contacts to find contacts with abnormal temperature rising, and using the temperature value asan initial value sequence of prediction;and finally employing the regression model obtained by training to predict the temperature value of the initial value for a long term and for a short term, and analyzing the highest point the contact temperature may reach and the time when the contact temperature reaches the highest point. Through predictive analysis based on PSO-LSSVM, fault development trend of equipment contacts is actively controlled, so the time for timely measures and ensuring the safe operation of power grid is bought. The method provided by the invention can be widely used in the field of power equipment forecast alarm protection.

The invention discloses a remote feeding system for aquaculture. The remote feeding system comprises power equipment, air supply equipment, feeding equipment, delivery equipment and spreading equipment, wherein the power equipment is connected with the other equipment, and provides a power energy source for the other equipment; a compression fan of the air supply equipment generates high-pressure airflows, and is automatically started and stopped at specific time points to ensure that the pressure of delivery pipelines is maintained within a safety range; a distributor sliding joint of the delivery equipment is automatically switched among different pipelines under the coordination of a proximity switch to feed feeds to a specific feeding water area through different pipelines; and after blown out of the delivery equipment, mixed baits are delivered to the spreading equipment through the delivery pipelines, and the airflows mixed with the baits are spread to target water bodies through the spreading equipment. The system can feed a plurality of target water bodies at a set time in a fixed amount, so as to improve feeding efficiency and save feeding cost.

The invention provides a device, a system and a method for measuring space charges by using an electro-acoustic (PEA) method. The device comprises a first electrode, a second electrode, a first thermostatic source, a second thermostatic source, a high-voltage direct current power supply, a pulse generator and a piezoelectric transducer, wherein the first electrode is used for contacting with one surface of the tested insulation material sample; the second electrode is used for contacting with the other surface of the tested insulation material sample; the first thermostatic source is used forconducting the temperature to the first electrode; the second thermostatic source is used for conducting the temperature to the second electrode; the high-voltage direct current power supply is used for transmitting the high-voltage direct current to the first electrode; the pulse generator is used for transmitting a high-voltage pulse signal to the first electrode; the piezoelectric transducer is used for detecting the acoustic signal of the tested insulation material sample, generated by the functions of the temperature gradient field, the high-voltage electric field and the high-voltage electric pulse, and is used for converting the acoustic signal into an electrical signal to output. The invention is used for measuring the distribution of the space charges in the high-voltage direct current power equipment insulation in the temperature gradient field.

A lightweight carbon fiber air/gas supply vessel storing high pressure air/gas. The air/gas supply vessel output is controlled by an adjustable pressure reduction valve which varies output pressure from very high to low pressure levels. An alternative multi-valve system uses a first pressure reduction valve to reduce output pressure from the very high levels in the air/gas supply vessel to an intermediate pressure level, and a second pressure reduction valve that reduces the air/gas pressure from the intermediate level to a fine tunable low pressure level. In both embodiments, the output of the last pressure reduction valve used is connected to a high pressure cable which in turn uses a standard universal fitting which can be coupled to most pneumatically powered equipment. Additional high pressure reservoir vessels can be used to replenish the lightweight air/gas supply vessel when its supply of air/gas is depleted.

A novel system and method for simplifying the management of electronic equipment such as computers, networks, and equipment and communications systems. The system tracks equipment that has been registered in an inventory database without any user involvement. Once registered and connected into the system's power source device, the equipment's location will be easily tracked without human intervention. This information may be used to locate systems in need of up grade, repair or relocation, and further can verify that the correct equipment was moved and that it was moved to the correct location.

Disclosed is a circuit board fault infrared image automatic detection method. The image information of the working state of a circuit board is obtained by collecting a visible light image and an infrared image simultaneously. First, a visible light image and an infrared image of a circuit board working normally are collected and stored in a database. During detection of the circuit board which malfunctions, circuit board images (including a visible light image and an infrared image) taken are compared with the images under a normal state in the database, and a computer processes the images to find an area and a specific position where a component or line with abnormal temperature is located and automatically make a mark on the visible light image. Thus, automatic detection of a possible faulty component of the circuit board is completed. The technology can be applied to fields such as circuit board maintenance and equipment fault monitoring, and can also be applied to power equipment fault repair, petrochemical pipeline coke plugging, thermal insulation layer fall-off check, railway locomotive axle condition monitoring, fire prevention, flood control, disease prevention and other temperature change related non-contact measurement fields.

The invention discloses a method for intelligently inspection substation equipment by using a robot, which comprises the following steps: arranging RFID tags at the detection points of power equipment, wherein positioning information is stored in each RFID tag; respectively storing the information corresponding to each RFID tag into an upper control host and a lower control machine on an inspection robot; installing an RFID reader-writer on the inspection robot; and after the detection is started, enabling the lower control machine to control the inspection robot to walk to the detection points of the power equipment along the predetermined paths according to the instruction of the upper control host, thereby recognizing the RFID tags by using the RFID reader-writer and finishing the information acquisition of the power equipment. By combining the RFID technology with the communication technology and the automatic control technology, the method successfully solves the problems of positioning and orientating of the inspection robot in the walking process. The method can ensure that the inspection process is convenient and reliable, the acquired data is accurate and effective, and workers can conveniently monitor the working conditions of the field and the operating conditions of the equipment remotely, thereby realizing the purpose of remotely monitoring remote areas and unattended stations.

The invention relates to a virtual reality-based power safety production scene interaction system. The system comprises a server and a virtual reality terminal communicating with the server, wherein the server comprises a three-dimensional model generation unit used for building power equipment and place three-dimensional models according to actual power construction demands and performing storage, an information obtaining unit used for collecting and obtaining power production data of power equipment in a power production system, an information association unit used for enabling the power production data of the power equipment to be in one-to-one correspondence with the power equipment three-dimensional models and performing association, and an information processing unit for generating virtual power scene image data according to actual demands and the power production data and sending the virtual power scene image data to the virtual reality terminal; and the virtual reality terminal used for generating a virtual power reality scene image according to the virtual power scene image data and performing display. According to the system, a virtual environment is consistent with a production scene, so that accidents can be reduced and personal and equipment safety is greatly ensured.

The invention discloses farmland information real-time acquisition system, device and method based on remote monitoring. In the system, an environmental parameter acquisition front end is used for outputting a multipath environmental element parameter signal acquired in real time to a data acquisition device through each environmental element sensor; a video image acquisition front end is used for outputting an image signal which is shot in real time to the data acquisition device through a camera; the data acquisition device is used for processing the input multi-path environmental element parameter signal and video signal, packaging the generated multi-path environmental element parameter signal and video signal into a path of information and waiting to upload the information to a remote service end and/or a client; and a power equipment is used for providing a work power supply for the data acquisition device. By organically combining information of farmland environment, growth condition of crops and the like, the invention provides visual and credible reference information for agricultural experts, deciders, agricultural producers and the like to make decisions and measures.

A massage device of the present invention includes a base cover; a guiding device, wherein the guide device comprising a plurality of guiding rails positioned in a middle of the base cover; and a moving base, which suspending above the guiding device; wherein the moving base comprising a bottom and a shield covered thereon to form a compartment; the moving base is mounted on the guiding device in a sleeve form. The moving base comprising power equipment mounted between the bottom and the shield, transmission system and massage system mounted on the shield.

The invention discloses a method for identifying the mode of a switch of a substation based on infrared detection. The method comprises the following steps of: 1, inputting an image to be identified, acquiring a switch area of the image by image registration, and sequentially graying, binarizing and thinning the switch area; 2, linearly detecting the image of the thinned switch area by using a Hough transformation algorithm; and 3, determining a detection result, and identifying the state of the switch by using a switch state determination condition. An H matrix between two images is obtainedby matching of the features of scale invariant feature transform (SIFT), the switch area in the image is found, and then the state of the switch is identified. Experiments show that: by the method, the problem of identification of a power switch can be effectively solved; an important significance is provided for automatic monitoring of the power equipment of an intelligent substation; the burdens on an inspector of the substation can be reduced; and detection efficiency is greatly improved.

The present disclosure provides a wildlife guard for electrical power equipment including a disc having a central opening for fitting onto the equipment. The disc includes an electrically insulating material with a conductive filler material in quantity sufficient for the disc to maintain an electrostatic charge. The disc has an insertion slot extending from an outer portion to the central opening for movement of the disc onto the equipment. The present disclosure also provides a wildlife guard for an electrical insulator bushing having an electrical conductor extending outwardly therefrom. The wildlife guard includes an electrically nonconductive cover for covering at least a portion of the electrical conductor, the cover being adapted to mount upon the bushing and a conductive panel attached to the cover.

The invention discloses an automatic electric pole climbing operating platform comprising a gear rack sliding climbing mechanism, a buckle locking mechanism, a work platform, and a hoop rotating mechanism. The gear rack sliding climbing mechanism comprises an inner sliding arm, an outer sliding sleeve, a driving device, and climbing unidirectional guide wheels. The inner sliding arm is inserted into the outer sliding sleeve from the top of the outer sliding sleeve and is in sliding connection with the outer sliding sleeve. The driving device drives the inner sliding arm to slide. The top of the inner sliding arm, the top end and the bottom end of the outer sliding sleeve are all equipped with the climbing unidirectional guide wheels. The climbing unidirectional guide wheels are in sliding connection with an electric pole. The buckle locking mechanism locks the inner sliding arm and the outer sliding sleeve or separates the inner sliding arm and the outer sliding sleeve from the electric pole. The work platform is fixed to the outer sliding sleeve and tightly holds or loosens the electric pole by means of the hoop rotating mechanism. The automatic electric pole climbing operating platform helps a worker improve power equipment installation and maintenance work efficiency, and reduces the labor intensity and the accident risk of the worker.

The invention provides a multiple spatial and temporal scale gradually-advancing load dispatching mode designing method. The method comprises the following steps: extracting the responding characteristics of schedulable load multiple temporal scales; designing a layering load dispatching mode based on load acting; designing the multiple spatial and temporal scale gradually-advancing power load dispatching mode. The multiple spatial and temporal scale gradually-advancing load dispatching mode designing method configures load side sources in day-ahead, intra-day and real time and other temporal scales and promotes the load side sources to participate in the dispatch and the operation of a power grid together with a generating side unit, so as to be favorable to improving the utilization rate of power equipment, promotes a daily load curve to gradually tend to be smooth, reduces the valley-to-peak difference of a system, and has great potentiality in promoting the digesting and saving aspect of large-scale renewable energy sources.

The invention discloses a regional building energy consumption predicting method. The regional building energy consumption predicting method comprises the steps of: S1, acquiring an annual energy consumption data sample set of buildings as data for building energy consumption prediction; S2, calculating cooling and heating loads of individual buildings, respectively, according to form of terminal air conditioners and heating equipment of the buildings; S3, calculating the energy consumption of cold and heat source related energy-consuming equipment of the buildings according to the cooling and heating loads of the individual buildings; S4, calculating the energy consumption of illumination equipment of the individual buildings; S5, calculating the energy consumption of electric equipment of the individual buildings; S6, calculating the energy consumption of power equipment of the individual buildings; S7, accumulating the energy consumption obtained in the steps S3, S4, S5 and S6 to obtain the annual energy consumption of the individual buildings; and S8, calculating the total energy consumption of all buildings in the region according to the annual energy consumption of the individual building. The method disclosed by the invention breaks through the limitation that for single building energy consumption prediction, an energy station is taken as a node, establishes an energy consumption predication calculating model of a building group in the region, and can provide a reliable ground for overall planning and management of regional energy sources.

Power is supplied to electrical devices while priorities between the electrical devices are being changed according to the states of use by a user instead of predetermined fixed priorities between the electrical devices, supply of power from a commercial power source can be controlled in real time at a request for power required by the user, and supply of power meeting QoL required in user's daily life is controlled. A power manager determines power to be assigned to each electrical device by inquiring a home appliance agent of whether or not the electrical device is capable of adjusting an operating function mode set as a target of a service operation of the electrical device, and of power for the electrical device. If the electrical device is capable of adjusting the operating function mode, the power manager obtains as a power assignment message the operating function mode set as a target for the electrical device and/or a power mode with power necessary for reaching the operating function mode as a target and with necessary time. If the electrical device is not capable of adjusting the operating function mode, the power manager obtains a power mode as a power assignment message without considering the operating function mode. The power manager includes a memory for transmitting the obtained power assignment message to the home appliance agent.

An apparatus is provided for supplying electrical power and cooling for an aircraft. The apparatus includes a cooling turbine coupled to a shaft, a compressor coupled to the shaft, and including an input for receiving engine bleed air or ambient air, and an output for discharging compressed air, a flywheel coupled to the shaft, a power turbine coupled to the shaft, and a starter generator coupled to the shaft between the compressor and the power turbine.

A multi-mode combined cooling, heating and power micro-grid system considering ice storage air conditioning is composed of a distributed power generation system composed of photovoltaic power generation, wind power generation, a fuel cell, a micro gas turbine and ice storage air conditioning, primary system composed of an energy storage system and other co-supply equipment, and a secondary dispatching control system. A CCHP-MG multi-time-scale optimal scheduling method is proposed, in a day-ahead plan, the uncertainty of renewable energy is described through multiple scenes, economic operationof CCHP-MG in a running optimization period is focused on; Intra-day scheduling is based on the scheme of the day-ahead plan, the difference and correlation of cooling, heating and power on scheduling time scale are considered, a two-layer rolling optimal scheduling scheme is proposed, the upper layer dispatches the combined cold and heat supply equipment, the lower layer adjusts power equipment,taking minimization of the adjustment cost as the goal, the smooth output of each co-supply equipment is obtained. The invention can remarkably improve the comprehensive utilization efficiency of energy and the local absorption capacity of the distributed renewable energy, and realize the economic and safe operation of the multi-energy micro-network.

The invention provides an online monitoring method for a DC-link capacitor of a three-phase system. The method comprises that voltage of the DC-link capacitor is collected, and a voltage drop curve of the DC-link capacitor is obtained; three-phase output current is collected, and capacitive current is reconstructed according to the three-phase output current; and the capacitance (C) and equivalent serial resistance (ESR) of the DC-link capacitor are obtained according to the voltage drop curve and the capacitive current of the DC-link capacitor. The voltage drop curve and the three-phase output current of the DC-link capacitor as well as control signals of a semiconductor switch are monitored in the process that power equipment as a three-phase frequency converter is switched off, so that the C and ESR of the DC-link capacitor are calculated accurately, and non-invasive online monitoring for the DC-link capacitor of the AC/DC/AC system is realized. The method can be applied to online monitoring for an aluminum electrolytic capacitor, other capacitors as a film capacitor as well as other three-phase systems including a wind power converter, a photovoltaic AC/DC/AC system and a three-phase aviation power system.

The invention discloses a power equipment integrated monitoring and early warning system based on big data and an analysis method of the power equipment integrated monitoring and early warning system. The system comprises a sensor group, a monitoring unit group and a power equipment integrated diagnosis platform, wherein the sensor group comprises multiple sensors used for obtaining monitoring parameters of a coupling transformer, a power cable and a GIS; the monitoring unit group comprises monitoring units used for monitoring the monitoring parameters of the coupling transformer, the power cable and the GIS, and each monitoring unit is connected with the corresponding sensor; the power equipment integrated diagnosis platform is connected with the monitoring unit group and used for achieving storage and management of multi-target power equipment monitoring data based on an HDFS, diagnosis based on the MapReduce technology and a fault sample bank, and real-time storage of monitoring index quantity and diagnosis results based on the NoSQL database technology; through a high-speed two-way data transmission mechanism, uploading of mass data monitored by multi-target power equipment in real time to a monitoring center is achieved on one hand, and feedback and early warning of the diagnosis results are achieved on the other hand.

The power toothbrush, which has a rotating brushhead movement, includes a housing with a motor mounted therein having an armature which in operation rotates through an arc of predetermined magnitude. The toothbrush also includes a brushhead mounted on a shaft which is connected to an output mass. A spring assembly couples the armature to the output mass, the spring assembly including two spring portions with a node point therebetween, wherein when the armature rotates, the brushhead moves in an opposite direction. The frequency of the movement of the armature is set equal to the resonant frequency of the spring coupling system and the output assembly.

The invention relates to the technical field of power equipment, and discloses an industrial boiler with a shock absorbing function, comprising a boiler body, a driver is arranged on one side of the boiler body, the bottom of the boiler body is fixedly connected to the top of a support frame, The bottom of the support frame is fixedly connected to the top of the extruding plate, the bottom of the extruding plate is fixedly connected to the top end of the first shock absorbing spring, and the other end of the first shock absorbing spring is connected to the bottom of the shock absorbing groove. The connection is fixed, the shock absorbing groove is provided on the upper surface of the support seat, and the support seat is provided with an empty groove on the upper surface of one side of the shock absorbing groove. The industrial boiler with shock-absorbing function, through the setting of empty slots, sliding rods, sliding sleeves, swing rods, movable shafts, fixed blocks and second shock-absorbing springs, the industrial boiler can better absorb shocks when it is in use. It solves the problem that the existing industrial boilers do not have the shock absorption function, and avoids the problem that the parts on the boiler will become loose under long-term shaking.

Provided in the invention is an improved-gray-Markov-model-based power equipment fault prediction method. The method comprises: original data collection is executed on power equipment; apriority step ratio checking on is executed according to fault interval data in the original data; under the circumstances that the apriority step ratio checking is done successfully, a GM (1,1) gray model is established directly; under the circumstances that the apriority step ratio checking is not done successfully, original data transformation is executed and then a GM (1,1) gray model is established; according to the markov chain property, an initial prediction value is determined based on the GM (1,1) gray model, state division is carried out, and then a state transition matrix is established, thereby obtaining a Markov prediction model; and an improved Markov prediction model is obtained based on the obtained Markov prediction model, and a calculation result of the gray model is corrected by using the improved Markov prediction model, thereby obtaining a final prediction value.

The invention discloses a novel remote real-time intelligent monitoring system for injurious insects and a monitoring method implemented by the system. The novel remote real-time intelligent monitoring system and the monitoring method are mainly used in the field of monitoring for injurious insects. The monitoring system mainly comprises modules such as power equipment, a trap, a counting system, an environmental information collecting system, a central control system and a safety detection system, and is characterized in that statistics of the quantity of trapped injurious insects is relevant to change of current in the trap, and insect condition monitoring information can be directly acquired after relevant instructions are transmitted. The novel remote real-time intelligent monitoring system and the monitoring method have the advantages that functions of trapping the injurious inspect, counting the injurious insects by the aid of a power grid, transmitting data, receiving the information and the like are implemented by the different modules of the system, so that effects of efficiently killing the trapped injurious insects, accurately counting the injurious insects and timely reporting the insect condition information are realized, a series phenomena such as mistaken reporting, missed reporting and information transmission lag are prevented, and the requirement on large-scale and systematic forecasting for various injurious insects during agricultural production is met.