182results about How to "Continuous power supply" patented technology

The invention relates to a system for online monitoring faults of an electric power line. The system comprises a remote terminal device and a monitoring master station, wherein the remote terminal device comprises a fault indicator and a line fault data collector which are in communication connection by an RF (radio frequency) network, the monitoring master station comprises a handheld mobile terminal and a microprocessor control terminal, the line fault data collector communicates with the data receivers of the handheld mobile terminal and the microprocessor control terminal through a GSM / GPRS (global system for mobile / general packet radio service) communication module by a mobile communication network, and the upper computer of the microprocessor control terminal communicates with the handheld mobile terminal through a GSM / GPRS generating and receiving data module of the data receiver by the mobile communication network. According to the system, intelligent monitoring is realized; in the manners of on-site indication and remote fault alarm, the fault types and fault points are confirmed, the faults are located accurately and timely; as two terminals are adopted, the faults are alarmed timely, reasonable dispatch is realized, the fault elimination efficiency is improved, and the power distribution reliability is improved.

A micro-grid operation mode seamless switching method based on an energy storage current transformer achieves that when a micro-grid is converted from isolated island operation into grid-connected operation, the energy storage current transformer actively detects state switching of the micro-grid, and correspondingly the micro-grid is converted from off-network operation into grid-connected operation. Through quasi-synchronization grid-connected control, smooth transition from energy storage current transformer power supply to main grid power supply is achieved. A load side continuously supplies power, a load is not affected by voltage fluctuation generated when the micro-grid is connected to a main grid, and continuous power supply of the load is guaranteed. The micro-grid operation mode seamless switching method achieves continuous and uninterruptible power supply to the load in the switching process of the micro-grid operation states, and a control policy has good universality.

The invention provides an intelligent employed electric system, which comprises a two-way incoming line power supply, an incoming line breaker which is respectively connected with the two-way incoming line power supply and a bus bar which is respectively and electrically connected with the incoming line power supply, wherein a bus coupling circuit breaker is electrically arranged between two sections of the bus bars, the invention also comprises an incoming line detecting unit, an intelligent controlling device which is electrically connected with each output end of the incoming line detecting unit, wherein the intelligent controlling device is also respectively and electrically connected with each breaker, the intelligent controlling device controls a close-open gate of each breaker through judging voltage and electric current value of each incoming line and according to the state of the current close-open gate of the breaker and the operating mode which is required by the system, the intelligent controlling device carries out an auto-switch-on control on each breaker according to the collected information when any incoming line power supply is failed, therefore the employed electric system can be led to continuously supply power, and the reliability of the employed electric system is effectively increased, failure processing time and operating cost are reduced, and the intelligent employed electric system is particularly applied on an unattended transformer station whose voltage grade is 110kV or under 110kV.

The invention relates to a marine instrument and meter power supply device based on sea wave energy capture. The traditional piezoelectric generating device has low generating efficiency. The device comprises a seal ball, metal cantilever beams, a mass block, a rectifying circuit and a super-capacitor, wherein the mass block is arranged at a ball center in the seal ball; six strip flaky metal cantilever beams are arranged in the seal ball along the space three-dimensional axial direction; two metal cantilever beams are arranged in each axial direction and positioned at both sides of the mass block; one end of each metal cantilever beam is fixed to the inside wall of the seal ball, and the other end extends into a rectangular groove which is correspondingly opened on the mass block; the metal cantilever beams and the rectangular grooves form slide fit; the upper surface and the lower surface of each metal cantilever beam are correspondingly provided with energy converting devices, the outputs of the energy converting devices are connected with the input of the rectifying circuit, and the output of the rectifying circuit is connected with the super-capacitor. The invention can obtain persistent power supply by utilizing the endless motion of waves.

The invention discloses an anti-icing wind power blade and a preparation method of the anti-icing wind power blade. The anti-icing wind power blade comprises a monitoring system, a peripheral power supply and a blade body provided with a macromolecule electrothermal film, wherein the macromolecule electrothermal film is arranged between the surface of a suction surface shell body and the surface of a pressure surface shell body of the anti-icing wind power blade or between shell body layers of the anti-icing wind power blade in a clamped mode, and the macromolecule electrothermal film is controlled by the monitoring system through a wire to be connected or disconnected with the peripheral power supply. At the time of operation, the monitoring system monitors icing parameters of an environment where the blade body is located, the peripheral power supply is connected when the icing parameters meet preset icing conditions, the macromolecule electrothermal film is powered on to emit heat, the heat is transmitted to the surface of the blade body, and the blade body is prevented from icing. According to the anti-icing wind power blade and the preparation method of the anti-icing wind power blade, the anti-icing wind power blade can be prevented from icing in an online mode under the condition of no machine halt, non-planned machine halts can be reduced, and wind energy utilization efficiency of a wind machine in frigid weather is improved. The anti-icing wind power blade is simple in preparation technology, high in operability, and free from extra complex processes and devices. The preparation method can be used for preparing a large anti-icing wind power blade. The anti-icing wind power blade and the preparation method of the anti-icing wind power blade are beneficial to popularization and implementation.

The invention provides an automatic standby power source switching system which comprises a first detection module, a second detection module, a signal processing module, a selector switch, a static switch and an energy storage device. The first detection module is used for detecting current and voltage values of a main power source; the second detection module is used for detecting voltage value of a standby power source; the signal processing module is used for generating and outputting switching signals to the selector switch when the current and voltage values of the main power source are zero and the voltage value of the standby power source is not zero; the selector switch is used for switching on a bus of the standby bus according to the switching signals; the static switch is used for switching on the energy storage device to the bus of the main power source when the current and voltage values of the main power source are zero and switching an output end of the selector switch to the bus of the main power source when the voltage value of the standby power source is not zero; and the energy storage device is used for storing electric energy. By means of the automatic standby power source switching system, continuous and stable power supply of a power supply system is guaranteed, and especially, the special power supply requirements of sensitive devices are met, and safety in operation of the sensitive devices is guaranteed.

The invention provides an ocean monitoring buoy and belongs to the technical field of ocean buoys. The ocean monitoring buoy comprises a floating body I; a cylindrical body is vertically arranged in the central position of the upper side surface of the floating body I; a mounting platform is arranged at the upper end of the cylindrical body; a conical counterweight block is arranged in the centralposition of the lower side surface of the floating body I; a fixing ring is arranged at the lower end of the conical counterweight block; the fixing ring is connected with one end of a locating anchor chain I through a cylindrical counterweight block; an anchor I is connected to the other end of the locating anchor chain I; an annular groove is formed in the cylindrical body; an annular rotatingring is rotationally arranged in the annular groove through a bearing; a counterweight ring I is coaxially arranged outside the annular rotating ring; and a plurality of blades I are uniformly arranged outside the counterweight ring I in the circumferential direction. The ocean monitoring buoy has the advantages that the stability is good, and wave energy can be utilized to generate power and so on.

The invention relates to the technical field of power supply, and particularly relates to a two-stage power distribution network emergency island division method. The method comprises the steps: before a fault occurs, taking the guaranteeing of the stable transition of a system fault moment as a main target according to measurement information of a wide-area measurement system of a power distribution network, continuously solving a pre-fault island division optimization model at a certain time interval, and obtaining a pre-fault original island division scheme meeting the current state of thesystem; carrying out load increasing and load reducing correction of the original island scheme before the fault to obtain an island online division decision table, thereby facilitating real-time query at a fault moment to obtain a load shedding scheme meeting a system real-time state; after the system enters the initial island state through the execution decision table, dividing the whole power failure period into a plurality of time periods according to the estimated power failure time; taking the increase of the number of recovered loads as a target, solving the Look-ahead roll island division optimization model after the fault to obtain the latest island division scheme, and executing the latest island division scheme. According to the invention, the method guarantees the continuous power supply of a key load during the fault.

Natural gas (NG) fueled auxiliary power source, combined with a high-pressure hydraulic pump supplying hydraulic fluid to a secondary hydraulic propulsion unit mounted (hung) on the rear (aft) of the wind generator main shaft provides axial force (torque) to the mainshaft via a ring and pinion set and planetary gearbox, or scaled turbine propulsion unit equipped with shaft speed sensors that have been calibrated to minimum / maximum desired main shaft (electrical generator) speed and that can engage and spin the main shaft attached to the electrical power generator on demand when there is insufficient wind to do so.

The invention discloses an unmanned plane mounted nuclear radiation detection device. The device comprises an unmanned aircraft, an aerial photography camera, a nuclear radiation sensor, a microcontroller, a wireless communication device, and a solar cell panel. The device can enter a high radiation region, which a ground person cannot enter, for detection, quickly detects the type of radionuclides and the dosage of nuclear radiation in the region, and guarantees the personal safety of a technician. Meanwhile, the device also can carry out the aerial photography of the resources of a complex terrain region and the environment radioactivity. Through an airborne solar cell panel power supply system, the device can work for a long time without worrying the duration. The ground person can freely control an unmanned plane to detect a target region according to a picture taken by the aerial photography camera.

The invention discloses an offshore floating type scenery wave comprehensive power generation device. The offshore floating type scenery wave comprehensive power generation device is characterized inthat the power generation device comprises a floating supporting platform, wherein a wind driven generator (1) and a wave energy power generation device (2) are arranged on the floating supporting platform, a plurality of solar power generation devices are arranged on the top face of the floating supporting platform, and meanwhile, a mooring system (4) is arranged at the bottom of the floating supporting platform; and the floating supporting platform comprises at least three floating cylinders (5), adjacent floating cylinders are connected through an upper box girder (6) and a lower box girder(7), and the wave energy power generation device (2) is arranged on the lower box girder (7).

An inter-satellite power supplying device comprises a target satellite side fixing and connecting support (1), a target satellite side conductive electrode (2), a target satellite side pressure spring (3), a target satellite side medium layer (4), a target satellite side top block (5), a main satellite side fixing and connecting support (6), a main satellite side conductive electrode (7), a main satellite side pressure spring (8), a main satellite side medium layer (9) and a main satellite side top block (10). The inter-satellite power supplying device replaces conventional power supplying connection methods which relate to umbilical cables or shed electric connectors, is simple and reliable, and can not influence separation safety. When a powered phase of a carrier rocket flies, a main satellite provides power for an auxiliary satellite through the inter-satellite power supplying device, therefore, power supply capacity in a long-term powered phase flying period (about seven days) is guaranteed, the depth of discharge of a storage battery of the auxiliary satellite can be effectively decreased, and the service life of the storage battery is prolonged.

The invention relates to a method for controlling power supply system featuring complementation of solar energy and fuel energy. In the method, a controller collects input electric current of a solar energy power supply device, charge-discharge electric current of storage batteries and load current of a loading equipment; when the input electric current is less than 1.5 times of load current, the system enters an oil engine auxiliary power supply mode; in the oil engine auxiliary power supply mode, the controller reads the current status of the storage batteries and the current status of the oil engine power supply device and starts up or closes the oil engine power supply device according to certain logic; in the technical proposal of the invention, solar energy power supply mode serves as the main power supply mode, as a result, the solar energy can be fully utilized, requirements for environmental protection are met, the input electric current of a solar panel and the load current of the load device can be monitored in real time; in addition, the oil engine can be started up to supply power when the solar energy power supply device can not supply enough power, thus entering the oil engine auxiliary power supply mode and realizing continuous power supply, improving utilization efficiency of the oil engine and lengthening service life of the storage batteries, strengthening reliability of the power supply system while meeting the requirements on energy conservation and reduction of consumption.

The invention discloses vehicle and boat explanation and calling management equipment. The equipment is intelligent explanation management equipment which is used in a wide landscape and a tourist place. The equipment mainly comprises a positioning unit, a communication unit, a storage unit, an MCU (Microprogrammed Control Unit) control unit, an A / D (Analog to Digital) conversion unit, a D / A (Digital to Analog) conversion unit, a power supply unit and a built-in loud speaking unit. The equipment is arranged on a cruise ship or a sightseeing bus, audio content and video content of the storage unit are triggered by receiving signals of a positioning satellite for broadcasting and explaining, and meanwhile, calling information of a managing part and other real-time information in a scenic spot are transmitted through a communication network, so that related events are convenient to deal with, and the aims of automatic explanation and intelligent management of the scenic spot are really fulfilled.

The invention provides a vehicle-mounted electronic control apparatus (21), which comprises a selection circuit (34). The selection circuit is connected with the voltage of the first power supply line (22) of a battery (5) through an ignition switch (2) and is also connected with the voltage of the second power supply line (23) of the battery (5) through the normally open contact (4a) of a main relay (4). The selection circuit is also connected with the voltage of the third power supply line (24) of the battery (5) through the coil (4b) of the main relay (4). Then the highest voltage among the above three voltages is adopted by the selection circuit. The selection circuit can continue provide the voltage of the battery to a power supply line (35) regardless of the on-off state of the ignition switch. Meanwhile, circuits, such as the RAM (10) of a micro computer (7) and the like, can be continuously operated by the selection circuit. In addition, a flash (135) can be initialized through a simplified operation, wherein the battery is disconnected and then is connected again.

The invention discloses a user-oriented multi-type distributed power supply integration networking system and a control method, wherein an alternating current and direct current distributed power supply and an alternating current and direct current load are respectively connected to an alternating current link and a direct current link of an electric power electronic transformer; the modular integration networking of the multi-type distributed power supply is finally completed; and a high-voltage system of an external power grid can be connected. According to the user-oriented multi-type distributed power supply integration networking system and the control method, the rapid integration networking of the distributed power source on the user side is facilitated and the operation and maintenance technical threshold of the distributed power supply is reduced; and meanwhile, the controllability of the distributed power supply is remarkably improved; the distributed power supply can actively participate in the operation scheduling of a large power grid; the power supply power quality of the power distribution network is enhanced; the utilization hours of the distributed power supply canbe increased; and the economic and green development of the power grid can be realized.

The invention discloses a simple and compatible POE power supply device, which comprises a power-supply-end circuit and a power-receiving-end circuit. The power-supply-end circuit and the power-receiving-end circuit are connected through a network transformer and a network cable. The power-supply-end circuit comprises a first detection circuit, a power supply circuit, a logic circuit and a second detection circuit. The power-receiving-end circuit comprises a rectifier circuit, a detection resistor and a switch circuit. The circuit of the simple and compatible POE power supply device is composed of simple and discrete components, so that the reliable identification of the power supply can be realized without any special chip. Meanwhile, the device is compatible with the power supply circuits of PSE / PD equipment. Therefore, at a relatively low cost, the power-supply / power-receiving requirements of the PSE / PD equipment compatible with the standard can be met by the device. The device is good in reliability and strong in flexibility.

The invention discloses an intelligent power supply system for a new energy automobile. The intelligent power supply system comprises a power battery, a super-capacitor, a DC / DC (Direct Current / Direct Current) power converter and a motor, wherein the power battery is connected with the DC / DC power converter; the DC / DC power converter is connected with the motor; the battery is connected with the DC / DC power converter; and the motor is a dual-winding motor. According to the technical scheme of the invention, two kinds of power supplies are combined, the advantages of the two kinds of power supplies are brought into full play, and the power supplies are applied to a power supply system of a pure electric automobile, so that complete and continuous power supply is provided while a power supply source is protected.

The invention discloses a rotary power supply device. The rotary power supply device comprises a fixed part of which position is fixed, and a rotary part which can rotate 360 degrees around the fixed part; the fixed part is provided with a first electric conductor communicated with an anode of a power supply and a second electric conductor (7) communicated with a cathode of the power supply; a third electric conductor communicated with the anode and a fourth electric conductor communicated with the cathode are connected on a circuit board (8) in the rotary part; and the rotary part rotates around the fixed part and then drives the third electric conductor to be in slide contact with the first electric conductor and drives the fourth electric conductor to be in slide contact with the second electric conductor (7). The rotary power supply device provided by the invention effectively solves the problem that the rotary part cannot infinitely rotate 360 degrees.

The invention discloses an infrared real-time monitoring system for chicken diseases. The infrared real-time monitoring system comprises a support assembly, a monitoring terminal, a data terminal and a sustainable power supply device, wherein the support assembly is horizontally arranged above a chicken house and comprises two vertical support plates, a transverse support plate stretching across the two vertical support plates, and a vertical driving mechanism; the monitoring terminal can reciprocate horizontally and transversely on the transverse support plate; the monitoring terminal comprises a data acquisition module, a data transmission module, a power module, and a mobile control module; the data acquisition module is provided with an infrared camera facing to the lower side of the chicken house; the data terminal is communicated with the monitoring terminal and comprises a data receiving module, a data processing module and a display module; the sustainable power supply device is arranged on the transverse support plate, and is electrically connected with the power module and used for continuously supplying power to the power module. Due to the adoption of the technical solution, the temperature condition of chicken in the chicken house can be monitored in an omnibearing manner, and a sustainable real-time monitoring state is kept.

Chained inverters in high frequency, a.c. converter in high frequency and AC / DC converter in high frequency are adopted in the invention. When power network turns-off power, solar energy stored in accumulator is converted to AC electrical energy to supply to power network or load for keeping continuity of supplying power. When supplying power, power network supplies power for loads, and power energy is stored into accumulator. When voltage in power work is on the high side or in low side, the system supplies stable AC voltage for load. The system transfers energy in two directions providing continuous and stable electrical energy and high efficiency of converting power.

A multifunctional large offshore buoy capable of diving and based on a green energy source comprises an upper layer structure and a ballast water spherical cabin. The multifunctional large offshore buoy is characterized in that the upper layer structure and the ballast water spherical cabin are connected through a framework, anchor beds are connected to an anchor chain retracting and releasing wheel below the ballast water spherical cabin through anchor chains, a water turbine is mounted on the ballast water spherical cabin, and the ballast water spherical cabin is internally provided with a seawater desalting device and a water storage tank; and the water turbine is provided with a power supply line group which is connected with the seawater desalting device, the seawater desalting deviceis provided with water inlet pipes which are arranged in seawater, a water outlet pipe is connected with the water storage tank, and the water storage tank is connected with a water outlet pipeline.The multifunctional large offshore buoy capable of diving and based on the green energy source has the beneficial effects that 1, wind, solar and tidal flow combined power generating is utilized to continuously supply power to the buoy, and the green and the environmental protection effects are achieved; 2, a high-definition camera is mounted, the defect that traditional radar cannot accurately track a small ship is overcome, and safety of water area near a port is ensured; and 3, excess electricity can be used for conducting seawater desalting, and the storage amount of ballast water is automatically adjusted according to the seawater amount obtained after desalting.

The invention discloses a multifunctional device integrating power generation, cooling, heating, dedusting and oxygenation functions. The multifunctional device comprises an air attraction tower (4) and a ventilating tower (2), wherein a natural wind generating set (1) and a wind generating set (3) are arranged on the air attraction tower, a thermal storage air duct (17) and a cold storage air duct (18) are arranged inside a building, a thermal storage body (15) is arranged inside the thermal storage air duct, an electric heater (13) is installed below the thermal storage body, a heat-insulating layer (16) is arranged above the thermal storage body, a solar heat-absorbing plate (14) is arranged above the heat-insulating layer, a cold storage body (20) is arranged inside the cold storage air duct, a sprinkler (21) is arranged above the cold storage body, a hot air duct (10) is arranged between the thermal storage air duct and the air attraction tower, a hot air rotating gate (11) is arranged at the opening of the hot air duct, an air stream channel (23) is arranged between the cold storage air duct and the ventilating tower, and a cold / hot rotating gate (22) is arranged at the opening of the air stream channel. The multifunctional device integrates power generation, cooling, heating, dedusting and oxygenation functions.

The invention relates to an intelligent kitchen garbage recovery barrel, which comprises a machine frame, a case and an electronic control device, wherein a garbage throwing opening, a solid garbage barrel and an oil liquid storage barrel are arranged in the garbage recovery barrel from top to bottom; the inner bottom of the solid garbage barrel is an inclined surface with the higher outer part and the lower inner part, and a plurality of small oil leaking holes are formed in the center position; a hanging edge which is outwards turned and is matched with a garbage recovery vehicle barrel lifting device is arranged at one side of an opening formed in the top in the garbage recovery barrel; a liquid level sensor connected with the electronic control device is arranged in the liquid level storage box. The intelligent kitchen garbage recovery barrel has the advantages that the solid liquid separation can be realized; meanwhile, the intelligent kitchen garbage recovery barrel is used as a kitchen garbage recovery terminal; the existing kitchen garbage recovery flow process can be optimized; the garbage recovery treatment efficiency is improved.

The invention provides a lightning waveform monitoring system for power transmission line leads, which relates to the field of lightning protection of a power system. At present, leads exist between a lightning current sensor and a host of a lightning waveform monitoring system, and the leads have the defects of insecurity, complicated wiring and complex operation; and the power source of the host is provided by a solar panel, is greatly affected by the weather and has complicated installing and fixing processes, and the exposed leads are insecure. The system of the invention comprises a host and a server capable of being connected with a host network. The system is characterized by also comprising a plurality of extensions communicated with the host, wherein each extension comprises a case, an annular lightning current sensor, a lightning signal acquisition module and a wireless module, wherein the case can be sleeved on a monitoring line; the annular lightning current sensor is positioned in the case and can be opened to be sleeved on the monitoring line; the lightning signal acquisition module is connected with the lightning current sensor; an annular energy acquiring transformer capable of being opened is also arranged in the case; and the induced electricity acquired by the energy acquiring transformer passes through a rectifying and voltage adjusting module to provide a power source for electric modules in the same case. The invention has the advantages of convenient installation and maintenance and reliable operation.

The invention provides a battery switching method applied to an electronic device. The electronic device comprises a first battery and a second battery. The method comprises the steps of (a) switching the electronic device into a sleep mode from a normal mode; (b) according to a removal signal triggered by the first battery, switching the power supply of the electronic device to be the second battery; (c) according to an insertion signal triggered during the insertion of the first battery, switching the power supply of the electronic device to be the first battery; (d) updating the relevant parameters of the first battery; and e) switching the electronic device into the normal mode. According to the technical scheme of the invention, by means of the battery switching method, the power supply of the electronic device is switched between the first battery and the second battery, so that the power supply of the electronic device is ensured to be continuous. The invention also provides an electronic device and a wearable device.

The invention relates to a ZVZCS full-bridge three-port converter and a control method thereof, and belongs to the technical field of power electronic converters. The converter consists of a transformer, a primary side circuit and a secondary side circuit. The power management and control for three ports of the converter can be realized simultaneously by adjusting the duty ratio of four power switch tubes of the primary side circuit. A non-isolated buck-boost converter and an isolated full-bridge converter are integrated together, the reuse of a primary side switch tube is realized, the quantity of the switch tubes is reduced, and the power density is improved; moreover, a lag bridge arm of the full-bridge converter is serially connected with two diodes, a leading leg switch tube is connected with a parasitic diode and a junction capacitor in parallel, so that the leading leg switch tube realizes zero voltage switching, the lag bridge arm realizes zero current switching-off, the four switch tubes can realize soft switching respectively, and the switching loss is reduced, so that high frequency of the power converter device is realized. The ZVZCS full-bridge three-port converter isapplicable for new energy power generation systems, energy storage systems, electric vehicle power supply systems and the like.

A dual power supply type data server comprises a power supply interface for supplying power to the data server, and an alternating-current dual power supply switching module, wherein one part of the input end of the alternating-current dual power supply switching module is connected to a commercial power interface, the other part of the input end of the alternating-current dual power supply switching module is connected to an inverted power supply, and the output end of the alternating-current dual power supply switching module is connected with the power supply interface; the inverted power supply comprises a storage battery and an inverter connected with the output end of the storage battery; and the output end of the inverter is connected with the alternating-current dual power supply switching module. When commercial power is normal, the commercial power interface supplies power to the data server and charges the storage battery; when the commercial power is abnormal, the storage battery inversely outputs 220V alternating-current to the data server; and two input power supplies, namely the commercial power and the inverted alternating-current output, can be automatically switched to each other, and switching interlocking is performed during switching to prevent inter-phase short circuit. The commercial power and the storage battery cooperate with a switching circuit, thereby providing a power supply system which is stable and reliable in working and is provided with a standby power supply for the data server; and the fact that the power still can be continuously supplied in a severe environment is ensured to prevent data loss.

The invention discloses a continuous power supply device which is installed on a track support of an infrared real-time monitoring system and used for continuously providing power for a power device of a monitoring terminal. The continuous power supply device comprises a motor, a winding coil and a conductive wheel disc, wherein the motor is fixedly installed on the track support, the winding coil is installed on a motor shaft of the motor in a sleeving mode and is composed of a left turntable, a right turntable and a winding shaft fixedly connected with the left turntable and the right turntable, and the winding shaft is externally wound with a conductive cable. The conductive wheel disc is fixedly arranged on the track support and is opposite to the left turntable, two annular grooves are formed in the side facing the left turntable and are filled with a conductive material, and positive and negative pole contactor seats are arranged on the other side. Two notches opposite to the annular grooves are formed in the side, facing the conductive wheel disc, of the left turntable and are filled with a conductive material, positive and negative contactors are arranged on the other side, and the other end of the conductive cable is electrically connected with the positive and negative pole input ends of a power supply of the power device. By the adoption of the technical scheme, the continuous power supply device is easy to achieve and can keep a continuous power supply state of the power device of the monitoring terminal.