877 results about "Electric fence" patented technology

Apparatus and methods for wire insulation in transmission line based electric fence are described in this invention. An insulator holds a wire pair that form the transmission line in its wire clamps. The insulator has a rain shed that sheds the wire clamps from getting wet by rain water. The insulator also has a pair of rain water divert guides that guide rain water accumulated on the wire to flow to the guide instead of to the wire clamps. This invention also describes a wire heating method that uses electric current to heat the fence wires such that the wire/wire clamp contact point will be kept dry and ice, snow accumulated on fence wires will be melted. Performance of the transmission line based electric fence can thus be greatly improved in advert weather conditions.

The invention discloses a district power network equipment abnormal alarm signal association analysis and diagnosis method in the field of automation of scheduling of electric power systems. According to the method disclosed by the invention, the weather situation of a plant station region at which abnormal alarm information is located can be automatically identified so as to determine the information processing mode. The method disclosed by the invention has the beneficial effects that by realizing intelligent association analysis and auxiliary decision making of the equipment abnormal alarm information under the real-time state, and performing playback on historical alarm information and performing real-time treatment on manual set information under the research state, the abnormal treatment time is greatly reduced, the incidence of accidents is reduced, a real-time, rich and intelligent auxiliary decision-making support is provided for regulation and control staff, and the safe, high-quality, economical and stable operation of an electric fence is further ensured.

The invention relates to an electric vehicle orderly charging control method. The method comprises the following steps of accounting and calculating the charging load predicting results at the next time frame as per the history data or the charging demand of the conventional electric vehicle by station level management equipment and uploading the charging load predicting results to an electric fence administration center, calculating the available capacity of an electric fence as per the predicting results at the present time frame and the real-time operation state and sending electric fence available capacity command to the station level management equipment by the electric fence administration center, comparing the charging power demand of the present time frame by the station level management equipment and coordinating the charging demand of the electric vehicle if the charging demand of the electric vehicle is smaller than the charging power demand of the present time frame. The invention further relates to an electric vehicle orderly charging control system. The allowance power of a recharge replacement station is restricted reasonably by the electric fence administration center as per the charging load predicting results submitted by the station level management equipment and the operating condition of the electric fence, thereby avoiding the impact to the electric fence caused by power requirements of the recharge replacement station and coordinating the energy source requirements of the electric fence load and the electric vehicle better.

An electronic fence system capable of guiding animals under training to return to a predetermined restricted area is disclosed. The fence system may utilize either a plurality of loops to determine direction of travel for a receiver unit or, alternatively, a GPS system. For embodiments utilizing the GPS system, electronic fences are defined in relation to GPS location information. A lock-down mode is used to contain an animal to a very constricted area when a control command is received to initialize the lock down mode or upon a specified condition. Specified conditions include the animal approaching or entering a specified area or, alternatively, a threshold level of charge being reached for a battery that provides power for the receiver unit.

The invention belongs to the technological field of agricultural plant protecting information processing, and discloses an electric fence monitoring method for unmanned aerial vehicle plant protecting operations. An agricultural plant protecting operation plot has boundaries and to ensure the security and efficiency of a plant protection unmanned aerial vehicle in executing the operations of plant protecting, the plant protection unmanned aerial vehicle should not trespass the boundaries. Therefore, it is necessary to monitor the electric fence for the unmanned aerial vehicle plant protecting operations. The method in doing so comprises the following steps: 1) generating in a dynamic manner a security boundary; 2) establishing a dual link communication system based on an unmanned aerial vehicle radio station and a 4G module; and 3) determining the boundary trespassing and the tendency of trespassing of the unmanned aerial vehicle so as to raise the detection efficiency of the boundary trespassing of the unmanned aerial vehicle. According to the invention, it is possible to make pre-warnings when there is tendency for the unmanned aerial vehicle to trespass the boundary so that the user of the unmanned aerial vehicle is able to change the flight direction instantly and that high efficiency unmanned aerial vehicle boundary trespassing can be detected. Therefore, the computational complexity is reduced greatly and the algorithmic efficiency is increased.

The invention relates to a power quality comprehensive evaluation system in the technical field of the electric power application; in the invention, a power quality collecting module obtains all items of power quality indexes from an electric fence; a power quality index grading module divides the power quality indexes obtained from the power quality collecting module into setting grades according to national standard or international generally recognized requirements; a probability distribution matrix obtaining module obtains probability of the power quality in each grade, and then the probability of the power quality index in each grade is obtained for obtaining a probability distribution matrix; a weight vector obtaining module obtains weight vector of the power quality index; an evaluation quantized value obtaining module obtains the only quantized value of the power quality comprehensive evaluation according to the probability distribution matrix and the weight vectors of all the indexes; a power quality evaluation module compares the only quantized value with the evaluation system for obtaining power quality evaluation result. The system can really reflect the probability characteristics of the power quality indexes and can comprehensively and objectively carry out comprehensive evaluation to the power quality.

The United States of America consumes nearly 20 million barrels of oil a day, 6.6 billion per year. This depleting chemical composition, in part, ends up in our air, on our trees, on our clothing, in our lungs, in our blood streams. A large portion of this oil is imported causing a dependency on foreign countries and a significant economic burden to this country. Clean, renewable, domestic energy is a necessity, not a luxury. The Z-333 Energy Management System is an answer to this challenge. There have been many Vertical Axis Wind Turbine patents issued since Mr. Elhanan L. Stoners' patent in 1891. However it appears that none has yet manifested itself into a large scale economic reality. The Z-333 Energy Management System is the latest of a series of improved Vertical Axis Wind Turbine designs which will make that reality come to pass. The Z-333 Energy Management System includes several novel changes to previously patented designs, plus incorporates totally new accessories to make man's continuing conquest of wind an actuality. These innovations include; Aerodynamic “balanced” wings. Tightly stretched fabric-only wings strengthening the overall structure, and at the same time, drastically lower the cost of construction. Flexible photovoltaic cells cover the aforementioned fabric-only-wings. A rotating tower that is flexible and safer. A unique high winds shut off switch. A multi-generator braking system maintains the shaft at a constant RPM. Generators and gears mounted to removable panels. Rubber-like covered shaft and large ring transmission. A low cost switch that controls the angle of attack of the wing with less problems and cost. A tower made of prefabricated interchangeable modules that can be used as a home, water tank, storage room, shop, and/or a shed. A base which is also a large battery and/or a control box shell. A programmable intelligent control box, which notifies the owner by cell phone, of battery fast charge/discharge, vandalism, key energy indicators, integrates a multi-circuit station timer, plus provides an electric-fence-like shock protection from animals and vandals. Low cost, multi-pancake generator that is highly efficient. A shaft centered flywheel. A shaft centered centrifugal pump. A sea base with ballast for low cost erection. A sea base with desalinization equipment built inside. A sea base with integrated hydrogen and oxygen producing equipment.

The invention provides an identification method of transient state power-angle stable key transmission cross-section corresponding to an expected fault, belonging to the field of electric power systemdispatching automation. Based on a transient state power-angle stable quantitative analysis theory and method, namely extended equal-area criterion (EEAC), the method identifies the key transmissioncross-section corresponding to the expected fault to provide decision support for the electric power system dispatching operation and control. The method comprises the following steps: carrying out atime domain simulation in an expected fault scene based on the operation state, model and parameters of an electric fence; identifying a generator critical group with stable transient state power-angle by EEAC based on simulation track and calculating the participation factor of the generator; calculating the sensitivity to the cross-section components power change caused by the output of each generator in the generator critical group by a power flow sensitivity analysis method; and taking the sum of products of the participation factor in each generator of the generator critical group and corresponding sensitivity of the cross-section component as a judging indicator of the transient state stable key transmission cross-section corresponding to the fault.

An electric fence energiser for coupling to an electric fence line. The energiser includes a sensor to sense the load on the fence line, at least one storage capacitor, and a charge circuit to charge the storage capacitor(s). A control circuit provides an output pulse with energy appropriate to the sensed load and determines whether the current pulse will exceed a predetermined limit adjustment and adjust the output pulse to send out an output pulse with voltage and/or energy below the predetermined limit if the current pulse will exceed said limit.

An electronic fence system capable of guiding animals under training to return to a predetermined restricted area. The electronic fence generates electric shocks as the animals attempt to leave the predetermined restricted area and restrains the electrical shock when the animals return to the predetermined restricted area. The electronic fence includes a transmitter and a receiver. The transmitter transmits RF signals having a plurality of control signals such that different shock levels are generated responsive to the location of the animals within the predetermined restricted area. The receiver sets a shock wave level, selectively controls the generation of the electric shock and a high-frequency beep, automatically restrains the generation of the electric shock when an escaped animal returns to the predetermined restricted area, and generates an audible alarm and turns lamps on and off to indicate the location of the animal when it escapes from the predefined restricted area.

The invention relates to a unified power energy quality controller based on the serial-connection multiplicity of transformers and a chain structure, which belongs to the technical filed of flexible AC transmission and distribution of an electric power system and the power electronic. The unified power quality controller comprises a single-phase serial-connection multiple transformer bank and a single-phase chain H bridge converter, wherein the transformer bank consists of m single-phase transformers which form the serial-connection multiple transformer bank together with n voltage source converters connected with n secondary windings of m single-phase transformers respectively; the single-phase chain H bridge converter is provided with n chains and is formed by connecting n DC voltage supporting units and n power source converters, and an AC port of the n-chain single-phase chain H bridge converter is directly connected with the electric fence through a reactor, m and n are signless integrals equal to or more than 2, and m is less than or equal to n. The invention can realize accurate current control, has high dynamic responding speed, and can solve the problems of the traction substation of an electrified railway that the three-phase voltage is unstable and fluctuates, the power factor is low and the harmonic pollution exists, and the like.

An energizer for an electric fence having a wire with feed and return terminals. The energizer includes a high voltage pulse generator for generating high voltage pulses at the feed terminal and a low voltage circuit for providing a low voltage signal at the feed terminal and for monitoring any changes in the low voltage signal at the return terminal to determine if the wire of the fence is touched, or if a short circuit or open circuit exists. An impedance decouples the high voltage pulses from the low voltage circuitry. The low voltage circuit makes measurements of electrical characteristics of the wire between the high voltage pulses. A low voltage intrusion detection system and related methods are also disclosed.

An autonomous-flight unmanned aerial vehicle system comprises a master controller and ground station equipment. The master controller comprises a data acquisition module, a data processing module anda communication module. Flight control and flight management functional requirements of unmanned aerial vehicles in different models can be realized through correction of an internal procedure and a peripheral circuit of the master controller. The system is characterized in that the ground station equipment is responsible for configuration parameter and flight route planning electronic fence setupand navigation mode configuration of each single unmanned aerial vehicle, and the master controller realizes autonomous flight including autonomous obstacle avoidance and breakpoint endurance of theunmanned aerial vehicles according to waypoint files, flight parameters and safety parameters generated by the ground station equipment.

The present invention provides a high voltage, step-up, high current DC pulse type transformer with increased coupling coefficient between the primary and secondary windings through close proximity of the primary winding turns and secondary winding turns by means of transformer construction that provides a plurality of winding bays for a high voltage secondary winding physically located in close proximity to the primary winding. The plurality of winding bays for the secondary winding are provided by means of a frame and separate thin insulation layer where the thin insulation layer provides the barrel for all or part of the secondary winding. The invention significantly increases the transformer's coupling coefficient in high voltage step-up transformer applications where the transformer's core is pushed beyond saturation due to the high peak current typically found in capacitive discharge type circuits such as those used in electric fence controllers, strobe circuits, and high performance ignition systems for automobile, marine, or motorcycle engines.

The invention provides a transformer substation electronic fence monitoring method based on intelligent video monitoring. The transformer substation electronic fence monitoring method comprises the steps that transformer substation inspection and video monitoring data are used for constructing a sample library of multiple types of detection targets of workers, electrified dangerous equipment, action behaviors and safety fences in a station; training a multi-class target detection model by using a deep learning network, establishing a unified multi-target classification discrimination model, and completing identification and positioning of various targets in the video by using the model; automatically generating an electrified dangerous area according to the automatically detected substation equipment information, and setting a no-entry warning condition; generating an electronic fence area according to the detection target and the field operation scene; and identifying the mutual position relationship between the personnel and the electronic fence at different moments in the video frame, performing personnel behavior analysis according to the multi-target classification discrimination model, and determining whether the personnel climb over the fence or the perimeter of the transformer substation illegally. Security of the substation is ensured.

The invention discloses a mousing/deratization electric fence device which comprises an electric fence structure, wherein, electric conductors respectively connected with two electrodes of a power supply of a high-voltage conducting loop are alternately arranged at intervals and can form a conducting loop through the body of a rat; the electric fence structure is isolated from the earth; a pyroelectric infrared sensing device is arranged above the electric fence structure; an extending part of the electric fence structure is kept outside the periphery of at least one direction of a detection area of the pyroelectric infrared sensing device; and sensing signals of the pyroelectric infrared sensing device are sent to a power supply control unit through a signal processing unit positioned behind the pyroelectric infrared sensing device and are used for controlling the power-up of the electric fence structure. When the rat enters and moves in an infrared detection area at the middle part of an electric fence of the mousing/deratization electric fence device, the electric fence is powered on, and the rat cannot escape from the electric fence so as to get an electric shock and die; in addition, the electric fence is not powered on when no rat moves or the dead rat is stationary on the electric fence, so that the effect of energy conservation can be achieved, and subsequent rats can enter the electric fence area continuously. The mousing/deratization electric fence device can be suitable for various places that are visited by the rats and moving paths of the rats rather than distributing baits.

An insulator capable of supporting the conductor of an electric fence including at least one retaining portion capable of retaining at least one fixing element to the insulator prior to the insulator being fixed to a support structure with the fixing element.

The invention relates to a full power test method and a test device for a whole wind turbine, adopting a double machine set energy feedback method to test the full power of the whole wind turbine. The cabins of two sets of wind turbines are arranged in a back-to-back mode, wherein, one set of cabins which carry out motorized operation are the dragging wind turbines, and the other set of cabins which carry out the electricity generating operation are the testing wind turbines. Energy provided by an electric fence can provide electric energy for the dragging wind turbine by a current-variable cabinet by the side of dragging wind turbine, and the dragging wind turbine drives the testing wind turbine to rotate by a spindle and a coupler and provides needed torque for the testing wind turbine. Electric energy produced by the testing wind turbine can be fed back to the dragging wind turbine by the current-variable cabinet. When the testing wind turbine runs under different operating modes, the output characteristic of the testing wind turbine can be detected by a test system. The invention adopts a double machine set energy feedback method, which saves electric energy. At the same time, the cabins of the two wind turbines are arranged in a back-to-back mode. The machinery fittings are simple and are easy and fast to install. Because of adopting field bus control technology, the test device for a whole wind turbine has the advantages of high compatibility and expandability. At the same time, the test system of the invention, which adopts a virtual device technology, can test characteristic parameter output by the wind turbines on line.

An electric fence post installer comprising a wheeled frame having a first upstanding support extending upwardly therefrom. A generally horizontally disposed boom arm is rotatably mounted on the upper end of the first support and has a carousel support secured to the outer end thereof. A carousel is rotatably mounted, about a vertical axis, on the carousel support and is adapted to have a plurality of vertically disposed and radially spaced-apart electric fence posts supported thereon. A vertically disposed drill is mounted on the carousel support and is adapted to be rotated and moved downwardly with respect to the carousel support to drill a post hole in the ground. After the post hole has been drilled, a fence post is moved from the carousel to a position over the post hole and then is forced downwardly into the post hole. The installer includes means for ensuring that the post hole will be drilled substantially vertically into the ground.

The invention discloses a power patrol unmanned aerial vehicle path planning method and a power transmission line patrol method. The path planning method comprises the following steps of S1, dividingan ideal path into a plurality of segments according to the set camera shooting power transmission line coincidence degree, setting a local target point, and deleting the point from a local target point array if the point is occupied by an obstacle to obtain a local target point sequence; S2, detecting whether the obstacle exists between points pi and pi+1 or not, adding pi+1 as a child node of piinto a random tree list if the obstacle does not exist, and planning a path from pi to pi+1 by using RRT if the obstacle exists; and S3, continuously planning a route to the next local target point according to the step S2 from a patrol starting point p0 until a patrol end point pn is reached so as to complete patrol flight path planning of the whole power transmission line. According to the method, a power line patrol task is ensured to observe the whole section of the power transmission line as much as possible, the obstacle can be avoided and crossing of electronic fences is limited.

A molded plastic fence insulator including a pair of spaced apart sidewalls connected by a connecting wall, aligned grooves defined across the connecting wall, and retention members associated with the aligned grooves and configured for receiving the wires underneath a portion thereof.

The present invention provides a low duty cycle, high current DC pulse type transformer with increased coupling coefficient between the primary and secondary windings by changing the proximity of the primary windings to the secondary windings through a plurality of primary windings separated by layers of secondary windings thus reducing the average distance between the primary windings and secondary windings. In addition to the increased coupling coefficient, the invention provides a reduction in electrical potential between primary windings and secondary windings through an electrical connection between the primary winding and a tap within the secondary winding. The invention significantly increases the coupling coefficient in applications where the transformer's core becomes saturated due to the high peak current typically found in capacitive discharge type circuits such as those used in electric fence controllers, strobe circuits, and high performance ignition systems for automobile, marine, or motorcycle engines.