246results about How to "Prevent electricity theft" patented technology

An authentication method for a vehicle-mounted charging device and a corresponding device, which are applied to the authentication when a vehicle-mounted charging device which is provided with a user card accesses a charging station serving network. The method comprises: reading, by a vehicle-mounted charging device, a user identity identifier and a user certificate from a user card; establishing a wireless link with a wireless charging pile, sending an authentication request to a device manager through the wireless charging pile, and carrying the user identity identifier, the user certificate and device information about the vehicle-mounted charging device; and after the authentication of the device manager of a serving network of the user identity identifier, the user certificate and the device information about the vehicle-mounted charging device, and after it is judged that the vehicle-mounted charging device matches the wireless charging pile, returning an authentication success response. The solution can effectively improve the security of wireless charging, reduce the accident rate and prevent electricity theft.

The invention discloses a single-phase cost-control intelligent electric meter. The electric meter comprises a shell, a display screen, buttons, a slot, pin connection ports and a fingerprint acquisition device. The display screen is located on the upper portion of the shell, an indicator light is further arranged in the center of the upper portion of the display screen, the pin connection ports are located in the lower portion of the shell, the fingerprint acquisition device is connected with an internal fingerprint recognition module, and the buttons include ten number buttons, a confirmation button, a cancel button and four direction buttons. An internal structure of the electric meter comprises a single-chip microcomputer, a metering unit, a storage unit, a power supply unit, an alarm unit, the display screen, a carrier communication unit, a relay control unit, a 485 communication unit, a clock unit, a button input unit, a safety certification unit and an electricity stealing prevention unit. The intelligent electric meter has the advantages of being diversified in function, high in intelligence degree and the like.

The invention discloses a socket capable of preventing electricity stealing and relates to the technical field of sockets. The socket capable of preventing electricity stealing comprises an upper cover and a socket body. The upper cover and the socket body are connected through a connecting part. The upper cover and the socket body are provided with mechanisms which are matched with each other and used for being assembled to be a lock for locking the upper cover and the socket body respectively. After the upper cover and the socket body are locked, the function of sealing the jacks of the socket is achieved. The socket capable of preventing electricity stealing is convenient to mount and use, can achieve the purpose of preventing electricity stealing effectively, can prevent water from entering the socket, and is suitable for being used outdoors; the upper cover is provided with notches, and therefore electricity taking and electricity stealing prevention can be achieved at the same time. According to the socket capable of preventing electricity stealing, the high cost for mounting a charging pile and the complex mounting conditions of the charging pile can be avoided, and the waiting time for using a public charging pile is eliminated, or the trouble for vehicle picking up can also be avoided.

The invention discloses an electric meter box device with the functions of preventing electricity stealing and carrying out monitoring. The electric meter box device comprises a reed tube, a power source, an alarm, a release switch and a time-delay relay. The power source, the alarm and the reed tube form a magnetic field alarm circuit. The time-delay relay, the release switch and the power source form a trigger alarm circuit. A mobile phone with the one-key get-through function is arranged below the time-delay relay. A camera module is arranged in a box body and used for collecting audio-video data and sending the audio-video data to an audio-video decoder, then compressed encoding processing is conducted on the audio-video data, and the audio-video data after the compressed encoding processing is conducted are sent to an M2M module and then are uploaded to a management platform through the M2M module. After the electric meter box device is used, not only is the good effect of preventing electricity stealing achieved, but also criminal offenders are arrested lawfully and unwittingly, arrogance of the criminal offenders is greatly struck, and behaviors of stealing electricity and damaging an electric meter box are eliminated.

Characters of the invention are: embedded type processor/controller of supporting ZigBee is adopted; through interface of SPI bus, radio comm. module of supporting ZigBee is connected to microcontroller; through ZigBee and gateway of isomeric network, the radio comm. module is connected to data monitor center; receiving polling, querying commands from the data monitor center, microcontroller issues commands of turning on/off power to switch relay, and transfers collected data to the data monitor center for collection and arrangement. The invention is capable of constructing network in high redundant nodes including 65000 metering devices for electric energy so as to guarantee that network possess powerful capability of data acquisition, and error self recovery capability. Thus, in condition, in which individual nodes do not work, the network can run normally. Advantages are: avoiding boring configuration procedure, reducing cost for maintaining network, manpower and time.

The invention discloses a method for preventing an intelligent electric meter from external electromagnetic field interference based on finite element simulation analysis. The method includes the following steps that firstly, parameters of an electric meter simulation model are determined; secondly, electric meter simulation model output embodied when no external electromagnetic interference exists is calculated; thirdly, electric meter simulation model output embodied when power frequency magnetic field interference exists is calculated; fourthly, the influences of the change of the distance between an electromagnet and an electric energy meter on the electric meter simulation model output are analyzed; fifthly, the influences of a direct current magnetic field on a transformer power supply are analyzed; sixthly, the shielding effects of different permeability magnetic materials on an interference electromagnetic field are analyzed; seventhly, according to the function relationships acquired in the third step, the fourth step and the fifth step respectively and in combination with the shielding effects of the different permeability magnetic materials on the interference electromagnetic field acquired in the sixth step, the safe distances between a power supply inside the intelligent electric meter and a case of the intelligent electric meter, between a voltage transformer inside the intelligent electric meter and the case of the intelligent electric meter and between a current transformer inside the intelligent electric meter and the case of the intelligent electric meter are acquired. Three-dimensional electromagnetic field analysis is conducted based on finite element analysis, the influences of the external electromagnetic field on the electric energy meter are prevented, and the electric energy meter is protected against electricity stealing.

The invention provides an intelligent electric meter box, an electricity quantity information display method and an alarm system and belongs to the power system equipment technical field. The intelligent electric meter box includes a box body, a baffle, an electronic locking component, a first fingerprint identification device, a second fingerprint identification device, a prompting device, a watt hour meter, an acquisition device, a micro fire extinguishing device, a display device, an infrared camera and a main control device; the infrared camera is mounted at the top of the box body; the baffle is mounted at the opening of the box body; the main control device, the display device, the first fingerprint identification device and the second fingerprint identification device are all mounted in the baffle; the watt hour meter and the micro fire extinguishing device are mounted in the box body; and the acquisition device is mounted on the watt hour meter. The main control device controls the micro fire extinguishing device, the display device and the electronic locking component, so that the watt hour meter can be prevented from catching fire and from being opened by an electricity stealer, the disclosure of private information can be prevented, and the applicability and safety of the intelligent electric meter box can be improved.

The invention discloses a coulombmeter case, which comprises at least two case bodies, a case cover and other assembly devices, wherein the lower part of each case body is provided with a routing channel, a routing channel clapboard and a switch base; the routing channel clapboard divides the routing channel into an upper layer and a lower layer; moreover, the lower end of each case body is divided into a wire lead-in chamber and a wire lead-out chamber through a vertical clapboard and a wire-pressing block. The coulombmeter case has the characteristics of safety, economical efficiency, electricity stealing prevention, multiple functions, simple manufacturing process, strong commonality and flexible configuration, etc.

This invention relates to a straight-through current transformer using puncture method to taking voltage form wrapping wire. The invention includes transformer noumenon(1). On the transformer noumenon (1) the invention set voltage-wire leading-out terminal (2) and voltage taking assembly (3) that has connected relation. the voltage taking assembly(3) possess spinal leading end, can puncture insulation skin of generatrix then touch metal core, thereby realize purpose of taking voltage. The structure of current transformer is simplicity; space taking up is smallness, cost low, and voltage taking mode shortcut. The invention could hugely advance work efficiency, at the same time, the connecting between voltage taking assembly and generatrix is stable.

The invention discloses an electricity larceny prevention metering box, and relates to the technical field of electric power metering. A first locking assembly is arranged between a box door and a box body and comprises a locking device, an air cylinder and a limiting block, a sliding plate is arranged in the inner chamber of the locking device, a first plug pin is fixed on the sliding plate, a first spring is arranged between the sliding plate and the inner wall of the locking device, the acting end of the first plug pin penetrates out of the locking device under the effect of the first spring, a push rod is fixed on the sliding plate, the air cylinder is fixed on the inner wall of the box body, and the limiting block is arranged on a piston rod of the air cylinder; sliding rails are arranged on the inner wall of the box body respectively, a cross beam capable of being regulated up and down is arranged between the two sliding rails, a second locking assembly is arranged below the first locking assembly, the second locking assembly mainly comprises a motor, a door catch and a clamping bar, the motor is fixed on the inner wall of the box body, the L-shaped door catch is fixed at the output end of the motor, and the L-shaped clamping bar is arranged on the inner side of the box door. According to the electricity larceny prevention metering box, the installation of each device can be facilitated, and electricity larceny can be prevented.

The invention relates to an intelligent amorphous-alloy iron-core distribution transformer and belongs to the technical field of manufacturing of transformers. The invention has the technical scheme that: pre-programmed modules and electric elements form an intelligent controller of the transformer; the intelligent controller and a high-accuracy current transformer are embedded into the transformer to make the transformer intelligentized; an anti-theft function is realized by an anti-theft and remote alarm system and a tracking search system; a safety function is realized by an electric shock resistance and grounding detection alarm system; and an electricity-stealing resistant function is realized by an electricity-stealing resistant, low-voltage metering and remote meter-reading system. The intelligent amorphous-alloy iron-core distribution transformer has the advantages that: the intelligent controller is added into an amorphous-alloy iron-core distribution transformer, so the problems of stealing of the amorphous-alloy iron-core distribution transformer, occurrence of an electric shock accident caused by touching a live wire or electricity leakage equipment by a human body or an animal when the transformer and a low-voltage line normally operate, and electricity stealing on a low-voltage side are solved.

The invention discloses a single user locale intelligent managing system which includes electric line interface for in, electric line interface for out, power unit, detecting unit, control unit and executing unit. The electric line interface for in and electric line interface for out are separately set at corresponding sides of the device, control end of executing unit is connected with control unit, controlled end of executing unit is concatenated between the electric line interface for in and electric line interface for out. Thereinto, power unit is detecting unit, the control unit and executing unit provide voltage; the detecting unit is used to detect whether is there abnormal, if it is, corresponding electric signal will be generated and sent to control unit; the control unit controls executing unit to act based on electric signal from detecting unit to cut off power supply of line. The single user locale intelligent managing system in the invention can avoid steal electricity, and structure is more compact, volume is smaller.

The invention belongs to the technical field of a plug and a socket, specifically to a light-sensitive and anti-electric-shock socket and plug. The light-sensitive and anti-electric-shock socket and plug comprises a body, a panel and a control module; a channel is formed between the body and the panel, and the channel is connected with each jack; a storage room is arranged at one end of the body; a reel is mounted in the storage room, and the reel is wound with a dust-prevention band; the dust-prevention band is positioned in the channel; the free end of the dust prevention band is fixed at one end, far from the storage room, of the body; an electrode sheet is arranged on the upper part of each jack; a light sensitive module is arranged on the lower part of each jack; the light sensitive module comprises a light source and multiple light receivers; the light source and the multiple light receivers are arranged on the opposite two sides of the jack respectively; a slot is formed in the panel, and clamping units are mounted on the left and right sides of the slot; and light holes are formed in the pin of the plug. By adoption of the light-sensitive and anti-electric-shock socket and plug, safety accident caused by a condition that a child inserts a foreign matter in the jack can be effectively prevented, so that safety use performance can be improved; and meanwhile, by virtue of the setting of the dust prevention band, the plug can pop up from the jack, so that convenient operation by a user can be achieved.

The invention discloses an electric meter box having an electricity stealing prevention alarm function and a door opening alarm device thereof. The door opening alarm device comprises a fixed shell, a flexible rod, a first spring, a fixed cover body, a groove body, a first proximity switch, a second proximity switch, a connecting rod, a flexible shell, a locking block, a second spring, an operating member, a third spring, a locking member, a fourth spring and a shaft body. The door opening alarm device is reasonable and simple in structure, low in production cost and convenient to install. The door opening disconnection device can effectively guarantee that the electricity of the electric meter box is disconnected after the box door is opened so that the possibility of electricity stealing can be avoided. The door opening alarm device can effectively guarantee that the door opening signal is transmitted to a wireless alerter after the box door is opened, and the alarm horn rings to be a certain deterrent to the electricity stealer. According to the door opening alarm device, unlock operation requires to be performed before closing the door, or the signal of the second proximity switch is transmitted out to alarm by the wireless alerter after the door is closed.

The invention provides a rod pumped well group control system based on a direct current bus. The rod pumped well group control system based on the direct current bus comprises a transformer, a rectification filter device and a plurality of inverter terminal controllers. The transformer reduces a high-voltage power source to a 380V or middle-high voltage three-phase alternating-current power source, the rectification filter device transforms the three-phase alternating-current power source to direct current electric energy, the inverter terminal controllers transform the direct current electric energy to alternating current electric energy and supply the alternating current electric energy for multiple pumping units, and real-time monitoring and control are carried out on the running conditions of the inverter terminal controllers. The rod pumped well group control system based on the direct current bus solves the problems that existing equipment is poor in power, high in cost and the like, and has the advantages of being high in energy-saving efficiency, low in cost and capable of preventing the sharp fluctuation or overvoltage of the voltage of the direct current bus and achieving power transmission without voltage boosting for long-distance oil wells where power is supplied to multiple wells through one system.

The invention discloses a multifunctional remote communication device and a smart electric energy meter therewith. The multifunctional remote communication device comprises a housing, an antenna disposed on the housing, a terminal, a battery cover, and an acquisition and communication circuit module disposed in the housing. The terminal comprises two remote communication terminals and one RS485 communication terminal. The multifunctional remote communication device and the smart electric energy meter therewith are mounted in a base meter of a three-phase smart electric energy meter, which canrealize the multi-master communication, the remote meter reading, the status monitoring, and the automatic acquisition of other smart devices, thereby improving the reliability of the remote meter reading system, and has the advantages of stable operation and convenient use.