78results about How to "Solve the problem of power supply" patented technology

The invention relates to an environmental monitoring system, in particular to a remote wireless environment real-time data acquisition method and a device. The device comprises a management work station and at least one ZigBee wireless sensor network, wherein, the wireless sensor network comprises a coordinator node which is connected with at least one router node; the router node is connected with at least one functional module, and the coordinator node is connected with the management work station by an RS232 interface. The acquisition device in the invention is developed by utilizing an advanced ZigBee wireless sensor network system, has the characteristics of low cost, high reliability, convenience and strong commonality, and can carry out wireless real-time acquisition on outdoor environmental information.

The invention relates to a power distribution net box type transformer environmental parameters on-line monitoring system which includes the steps that aiming at any one of box-type transformer substations, the power distribution net box type transformer environmental parameters on-line monitoring system is provided with a plurality of sensors, wherein at least the temperature of a high pressure charged body in the environmental parameters of the box-type transformer substations, the high frequency partial discharge, the temperature and humidity in the box-type substation are monitored correspondingly by the sensors, and the monitored data of the various sensors are received and sent to a front-end data acquisition unit of a monitoring center based on a wired or wireless communication mode. The data processing server device of the monitoring center carries out the storage and processing analysis for the received data to generate a real-time dynamic monitoring curve and produces an audible and visual alarm when the monitored data exceed a set threshold value, and meanwhile the alarm information can notify attendants in the relevant areas in a text message form, so that the time of incident response is shortened and the economic loss is reduced.

The invention discloses a hydrologic data monitoring system, which comprises a monitoring center system, one or more wireless gateways, one or more wireless hydrologic data acquisition terminals and one or more sensors for measuring hydrologic data, wherein each wireless hydrologic data acquisition terminal is connected with the one or more sensors, and used for receiving the hydrologic data from the sensor which is connected with the wireless hydrologic data acquisition terminal, converting the hydrologic data and then sending the hydrologic data to each wireless gateway; and each wireless gateway is used for receiving the hydrologic data from the one or more wireless hydrologic data acquisition terminals in a coverage range of the wireless gateway, aggregating the hydrologic data and then sending the hydrologic data to the monitoring center system. By adoption of the hydrologic data monitoring system, low-cost and low-complexity sensor data acquisition, transmission and monitoring associated with hydrologic monitoring can be realized.

The invention discloses an energy acquisition and power supply management device of a current transformer of an overhead line, which is characterized in that both output ends of the current transformer are connected with both input ends of a booster; both output ends of the booster are connected with both input ends of a rectification circuit; the positive output end of the rectification circuit is connected with a load after being connected with a voltage-stabilization output circuit; the second output end of the booster is connected with the power supply output end of a charging circuit; the positive output end of the rectification circuit is connected with the control end of the charging circuit after being connected with a sampling comparison circuit; the output end of the charging circuit is connected with the power supply input end of a gate circuit; the output end of the gate circuit is connected with the input end of a booster circuit; the output end of the booster circuit is connected with the load; and a delaying comparison circuit and the gate circuit are connected. The invention has the advantages that when short circuit or the noload of the overhead line is generated in the energy acquisition process of the current transformer, power is safely and stably supplied to overhead line high-voltage side equipment, in particular to online monitoring equipment.

The present invention relates to the technical field of mobile communications. Provided are an indoor distribution system, a local unit and a remote unit designed to realize high-speed transmission of multipath signals while saving resources and avoiding the power supply difficulty of a remote unit. The indoor distribution system comprises a local unit (11) and a remote unit (12) connected via a single feeder cable; the local unit (11) comprises a local mixing part (111), and the remote unit (12) comprises a remote mixing part (121), the remote mixing part (121) being a passive component. The present invention is suitable for the network structure of mobile communication.

The invention discloses a real-time underground water level monitoring device which comprises an upper computer, monitoring hosts, water level monitoring devices and water level gauges. The upper computer is connected with the monitoring hosts. The monitoring hosts are connected with the water level monitoring devices. The water level monitoring devices and the water level gauges are connected through low-halogen low-smoke flame-retardant communication cables. Each water level monitoring device is provided with a water level signal receiving assembly, a power supply assembly, a radar liquid level instrument, a programmable logic controller (PLC) for collecting and sorting water level signals and a wireless signal transmitter. Each monitoring host comprises a computer, a water level alarm system, a database system, a mobile phone and a broadcasting station. According to the real-time underground water level monitoring device, low-power-consumption and low-voltage direct-current safe voltage are adopted, and collinear transmission is adopted for communication. By means of the real-time underground water level monitoring device, on-line monitoring of the underground water level is achieved, meanwhile the state of the underground water level is reported accurately, early warning is achieved in advance, interference is conducted in advance, and treatment is conducted timely. The real-time underground water level monitoring device is good in reliability and complete in function.

The invention provides a line inspection robot as well as a charging method, a charging device and a parameter collocation method of the line inspection robot. The charging method of the line inspection robot comprises the steps of: charging an energy accumulation storage battery by a solar battery pack; and charging the line inspection robot by the energy accumulation storage battery. According to the invention, solar energy is utilized as resource to realize on-line electrifying for the line inspection robot; and the charging method is ingenious in conception, and has very important significance in on-line charging of the line inspection robot which operates on a high-voltage transmission line.

The invention discloses a method and equipment for transmitting analog video signal and realizing long-distance power supply by network cables. An analog signal transmission line is combined with a power cord so that analog signals and a power source can be transmitted together. The main technical scheme includes: adding two conversion devices between a video server and a far-end camera, and connecting the conversion equipment with the video server and the distant camera by the network cables, transmitting the analog video and audio signals and the power source which are combined by the conversion equipment at one end through the network cables, and then separating the analog video and audio signals from the power source by the conversion equipment at the other end. The method and equipment for transmitting analog video signal and realizing long-distance power supply by the network cables solve the problem of complicated assembling of the analog camera, realize the distant power supply and greatly save the material cost and construction cost.

The invention discloses a self-powered sensor for monitoring flow rate of pipeline flow based on vortex-induced vibration. The self-powered sensor is characterized in that an inner cylinder is arranged at the inner wall of a pipeline of an outer cylinder, and leading line sealing plugs are arranged in the side wall of the pipeline of the outer cylinder; a bluff body, a sensor and an energy capturing unit are arranged in the inner cylinder; a vibration power generation sheet is clamped and fixed into the inner cylinder by a clamp assembly, and the end of the vibration power generation sheet isstuck onto an induced vibration board; mass blocks are vertically and symmetrically adhered to both sides of the induced vibration board; positive and negative leading lines of the vibration power generation sheet penetrate through the wall of the outer cylinder through the leading line sealing plugs, and are connected with an external circuit assembly. The self-powered sensor has the advantages that no external power source is needed, the online measuring on flow rate and the energy supply for a flow rate signal wireless transmission unit can be simultaneously realized under the action of fluid and solid coupling, and the online measuring on the flow rate in the pipeline is truly realized; by adjusting the self inherent frequency and the distance relative to the bluff body, the power supply capacity is increased, the structure is simple and miniature, the selection range of power generation functional materials is broad, the compatibility and extendability in the pipeline are strong,and the array layout and multi-point layout in the pipeline can be easily realized.

The invention discloses a wind power blade wireless vibration monitoring device on the basis of a kinetic energy battery, which comprises a sensor node and a coordinator, wherein the sensor node is positioned in a blade of a wind generating set and the coordinator is positioned inside an engine room; the sensor node is connected with the coordinator by wireless communication and is used for acquiring a blade vibration signal according to a control signal of the coordinator and sending the vibration signal to the coordinator for processing; and the sensor node comprises a kinetic energy battery module with a self-powered function. The invention also discloses a monitoring method for the wind power blade wireless vibration monitoring device. According to the invention, the kinetic energy battery module is adopted to carry out self-powering, the sensor node does not need to be externally connected with a power line and the difficult problem of power supply is solved; meanwhile, monitoring on vibration of the blade is implemented by adopting a wireless sensor network and interference of rotating mechanical signal wired transmission is avoided; and moreover, the sensor node is arranged inside the blade, does not damage the surface of the blade, is interfered by the environment a little and can be free of maintenance and be used for a long time.

The invention discloses a WIFI signal-based traffic flow detector and a detection system. The detection system comprises a traffic flow detector, a data storage and analysis system and a communication network. The traffic flow detector comprises a signal receiving and transmitting module, a signal transmission module and a power supply module. The signal receiving and transmitting module is used for sending the WIFI broadcast so as to trigger a mobile device to send signals to the periphery, and receiving data sent from the mobile device, wherein the data are composed of the identification code of the mobile device. The signal transmission module is used for sending the received data to the data storage and analysis system. The data storage and analysis system is used for storing the data and calculating the traffic flow according to the data. The communication network is used for enabling the data transmission between the traffic flow detector and the data storage and analysis system. In this way, no positioning software or positioning device needs to be installed forcibly, so that the usage cost is low. The detector is high in durability and convenient to install, which can be densely arranged on each road section. The detector is low in power consumption, small in energy consumption, green and environment-friendly.

The invention discloses a mine WSN safety monitoring system based on wind-induced vibration piezoelectric energy self-energizing. The mine WSN safety monitoring system comprises a control center, a communication base station, an SINK node and a monitoring terminal which are connected in turn. The monitoring terminal comprises a sensor unit, an energy supply unit, a first processor unit and a first communication unit. The energy supply unit comprises a wind-induced vibration generator module and an energy management module. A wireless sensing technology is adopted with no requirement for laying large number of power supply lines or communication lines so that large amount of capital input and manpower input can be saved, the structure is simple, the information acquisition surface is wide, various environment and structure parameters of a mine can be monitored in real time, various data of the mine can be mastered and safety of mine production can be guaranteed. Besides, self-energizing is realized through conversion of wind energy in the mine into electric energy so that the problem of electric energy supply in the wireless sensing technology can be solved, wireless monitoring of the mine can be truly realized, and thus the mine WSN safety monitoring system has great popularization value.

This invention relates to a method and a system for mobile station location based on a special short message, and use of the same. A system for mobile station location based on a special short message, where the system, based on a mobile communication network, is characterized by that this system includes plural radio communication terminals, a mobile station to be located and a locating system that includes a locating processing module, a special short message sending module and a data analyzing module, where a mobile station sends locating request information to the locating processing module which processes the requests and sends a special short message to the mobile station and the radio communication terminals around the same by use of the special short message sending module; the mobile station and the radio commutation terminals transmits a measurement report that each base station reaches signal strength to a network side that transfer these measurement reports to the data analyzing module for analysis and compare, so as to compute a relative position of the mobile station and each radio communication terminal. The invention is advanced with high precision of locating, with low cost, which is convenient for promotion.

The invention provides a solar thermoelectric generation device based on a Fresnel lens and a heat pipe principle, and belongs to the field of solar thermal power generation engineering. The device mainly comprises the point focusing type Fresnel lens, a transparent glass cover plate, a cylindrical cavity type heat absorber inner wall, a cylindrical cavity type heat absorber outer wall, annular thermoelectric generation modules, flat plate type thermoelectric generation modules, annular fins and uniform-section straight fins. Compared with other solar thermoelectric generation devices, the solar thermoelectric generation device based on the Fresnel lens and the heat pipe principle can achieve uniform heating of walls of heating ends of the thermoelectric generation modules, has the advantages of being compact in structure, few in operation parts, low in noise, reliable to operate, low in maintenance cost, convenient to adjust and good in performance, and can be used as a distribution type energy source.

The invention relates to a power transmission line on-line monitoring system. The power transmission line on-line monitoring system includes a main control circuit, a temperature monitoring device, a video acquisition module, an icing monitoring device, a micro meteorological monitoring device, a wire vibration detector, a power source module, a radio frequency module and a wired communication module; the temperature monitoring device, the video acquisition module, the power source module, the icing monitoring device, the radio frequency module and the wired communication module are all connected with the main control circuit; and the micro meteorological monitoring device and the wire vibration detector are connected with the main control circuit through a wireless communication module. According to the power transmission line on-line monitoring system of the invention, a temperature sensor, a humidity sensor, a wind speed and wind direction sensor and the like are arranged on a whole power transmission line, and a power communication network is adopted, and therefore, the overall smart grid transmission line on-line monitoring system can be formed. With the power transmission line on-line monitoring system adopted, power grid transmission line accidents can be effectively prevented or reduced.

The invention provides a landscape canopy and a mobile charging system. The landscape canopy comprises a canopy ceiling, a canopy bracket and a solar photovoltaic unit; the canopy bracket is used for supporting the canopy ceiling; the canopy bracket comprises an arc-shaped plate and upright posts; the arc-shaped plate is arranged at the inner side of the canopy ceiling; the canopy ceiling is supported to form an arc-shaped surface; the upright posts are vertically connected at the bottom side of the arc-shaped plate; the solar photovoltaic unit comprises a solar photovoltaic panel arranged on the canopy ceiling; the solar photovoltaic panel is electrically connected to a photovoltaic inverter arranged at the inner side of the canopy ceiling; the photovoltaic inverter is electrically connected to a charger; and the charger is fixed on the upright post of the canopy bracket. Due to the above structure, with the help of the characteristics of the existing landscape canopy, the effects of providing electric energy converted from solar energy and supplying power to a new energy automobile can be realized; and namely, the technical problem that power supply of the new energy automobile is deficient can be solved.

The invention relates to a power supply method of an indoor distribution system by use of an antenna feeder and a system. According to the invention, a wireless signal and a DC power signal are modulated and combined through a splitter, a combiner and other devices; transmission is then carried out through an original antenna feeder of the indoor distribution system; and separation and reduction of signals are carried out ultimately via a separator, a gain module and other devices. Therefore, the purpose of DC power supply transmission by use of the antenna feeder is achieved.

The invention discloses a wireless construction site image monitoring system based on 3G and ZigBEE. The wireless construction site image monitoring system comprises a video and picture acquiring terminal, a communication gateway and a monitoring and controlling platform, wherein the acquiring terminal consists of a real-time video acquiring terminal and a plurality of timing picture acquiring terminals, data of the picture acquiring terminals are transferred to the gateway by virtue of ZigBEE, and the video acquiring terminal is directly connected with the gateway; the communication gateway consists of a ZigBEE module, a terminal processor, a 3G communication module and a power supply module and is used for transferring processed data to the monitoring and controlling platform by virtue of a 3G network; the monitoring and controlling platform provides real-time video monitoring service and timing picture photographing service aiming at a construction site. According to the wireless construction site image monitoring system disclosed by the invention, with the adoption of the video and picture acquiring terminal, the purposes of large-area real-time monitoring and key point wireless picture monitoring of the construction site are reached by applying ZigBEE and 3G wireless communication technologies, so that a monitoring range is wide, and the investment cost of site manual supervision, evection, power supply and network cabling and a large number of video monitoring equipment is also lowered.

The embodiment of the present invention provides a marine controllable source time frequency electromagnetic data acquisition system and method. The system comprises a dipole current source and a cable. The dipole current source is used for generating controllable source time frequency electric field data and controllable source time frequency magnetic field data in a sea area to be detected. The cable is provided with multiple electric field sensors with electrodes, two adjacent electric field sensors on a same cable are used for collecting controllable source time frequency electric field data along a cable direction. A three-component electric field sensor and a three-component attitude sensor are arranged between two adjacent electric field sensors and are used for collecting the controllable source time frequency magnetic field data and attitude data. The cable is provided with a power generation layer for providing power supply. According to the system, since the power generation layer is used to supply power to electronic devices on the cable, the interference brought by using a large-power power supply is avoided, and the technical problems of inconvenient power supply and low accuracy of collected sea controllable source time frequency electromagnetic data of an existing method are solved.

The invention relates to an induction type power taking method used for a three-core cable, and belongs to the technical field of an electromagnetic energy harvesting method. According to a technicalscheme, (1) coils c1, c2 and c3 are mounted in three magnetic field extreme point positions of the same cross section of the surface of the three-core cable respectively, wherein the three coils are uniformly wound around two semicircular bracelet ring-shaped frameworks with a mutual difference value angle of 120 degrees in space, and it is ensured that the three coils are aligned to A, B and C phases of core wires of the cable respectively; (2) the voltages generated by induction of the three coils c1, c2 and c3 are subjected to full wave rectification and AC / DC conversion separately to obtain an output voltage; and (3) a direct current voltage output by a full wave rectifying circuit is subjected to filtering by adopting a capacitor, and then the filtered and output DC voltage is supplied to an energy storage module. By virtue of the induction type power taking method, the power supply difficulty of a distributed sensor network in a cable channel can be solved, and a new power supplymethod also can be provided for other similar monitoring or detecting or monitoring apparatus and network, and a high application value is achieved.

The invention discloses a section post structure applied to an alternating-current double-tracked electrified railway bilateral power supply mode. The functions of parallel power supply of a power supply arm tail end contact net under the normal condition and cross-section power supply of adjacent traction substations under the condition that traction substations fail and quit operation can be maintained. Uplink and downlink contact network parallel power supply and left and right side power supply arm bilateral power supply are realized by adopting a circuit breaker mode in a section post; agroup of voltage transformers, lightning arresters and a 27.5 kV feeder line are respectively added to a left power supply bus and a right power supply bus. The voltage transformer is used as a newlyadded feeder line power supply side voltage detection device of buses at two sides. The lightning arrester serves as a voltage transformer overvoltage protection device, the two newly-added feeder lines, the left side power supply arm contact net and the right side power supply arm contact net are in-phase power supplies respectively, the two newly-added feeder lines are used for supplying power to joint type electric split-phase uncharged neutral sections between two adjacent traction substations and at the tail end of the power supply arm, and the two newly-added feeder lines can be standbyfor each other.

The invention discloses a real-time remote driving system for monitoring the states of multiple vehicles. The system comprises a plurality of vehicle end devices and a cloud simulation platform; each vehicle end device is used for generating operation state information of a current vehicle and environment perception result information representing a recognition result of each obstacle around the current vehicle, and outputting the information through a wireless communication link; and the cloud simulation platform is used for generating a vehicle model and a virtual environment model for each vehicle end device according to the operation state information and the environment perception result information, fusing model data of all the vehicle end devices on the basis, obtaining a data fusion video including driving of all the vehicles in the corresponding driving environment, and displaying the data fusion video. The requirement for monitoring multiple vehicles at the same time is met, the requirement for bandwidth is low, the popularization rate is high, the cost is low, the link of manually judging the obstacle characteristics is eliminated, and high safety and reliability are achieved.

The invention discloses an indoor distribution communication system monitoring device and method; the indoor distribution communication system monitoring device comprises an upper computer, a monitoring module, a combiner module and a frequency selection module; the communication end of the upper computer is connected with the communication end of the monitoring module; the output end of the monitoring module is connected with the monitoring signal input end of the combiner module; an indoor distribution signal input end of the combiner module is connected with an external base station; and the output end of the combiner module is connected with the input end of the indoor distribution communication system. According to the monitoring device and the monitoring method, the frequency selection module is arranged in the indoor distribution communication link; the functions of parameter setting, frequency setting and the like of the monitoring module are matched, so that simultaneous real-time monitoring of a plurality of different links is realized, and fault positioning monitoring and blind-spot-free monitoring are achieved; fault information alarming and positioning are accurate andreal-time; the communication system link in the detected indoor distribution system is monitored in real time, and fault analysis can be carried out; besides, complete monitoring of devices in the indoor distribution system of a coupler, a power divider, a leaky cable, a feeder line, an antenna and the like is realized.

The invention discloses a monitoring device and method for the rope regulating state of deep-well lifting equipment. The whole system comprises micro fluid-flow power generators, synchronous pulleys, encoders, a communicating vessel, electromagnetic speed regulating valves, connecting plates and an acquiring device which are all mounted at the positions of tension balancing devices; electric energy can be generated by utilizing the flow of hydraulic oil of a rope regulating device, thereby supplying power to the monitoring device; the rope regulating speed can be controlled by regulating the openings of the electromagnetic speed regulating valves; the encoders can be driven by the synchronous pulleys to effectively measure the rope regulating state; and a digital-quantity acquiring and transmitting method is adopted for the monitoring device, so that the interference to wireless transmission can be reduced to the great extent. The monitoring device is compact in structure; a simple and convenient detecting method is adopted; no manual maintenance is needed; the reliability is high; the abnormal running state of the rope regulating device can be effectively monitored and controlled visually and correctly; and the occurrence of a steel wire rope breaking accident can be effectively avoided.

The invention belongs to the technical field of solar cell application, in particular relates to an organic solar traffic light comprising a signal light, a solar cell, a storage cell and a control unit, wherein the solar cell is connected with the signal light; the storage cell is connected between the solar cell and the signal light; the signal light is formed by an OLED (Organic Light-Emitting Diode) array; an active layer of the solar cell is formed by stacking organic materials CuPo / C60; an ultrathin Au layer (0.5+ / -0.2nm) is modified on a ZnO:Al anode, and therefore, compared with the energy conversion efficiency of a solar cell without an Au modifying layer, the energy conversion efficiency of the organic solar cell is increased by about 10 times. The organic solar traffic light has low cost and convenient and simple facilities and is especially suitable for a crossing without an alternating current area. In addition, the organic solar traffic light can work by directly using solar energy to supply electric energy in a sunny day and stores electric energy into the storage cell and can also work by using the electric energy stored in the storage cell at night or an overcast and rainy day, thus the organic solar traffic light can work uninterruptedly throughout the year.

The invention provides a deep-sea seismic data acquisition towing cable based on a deep-sea robot and an acquisition method. The deep-sea robot is used for towing the array type marine seismic data acquisition towing cable in the deep sea, and single-component or multi-component marine seismic data can be directly acquired in the deep sea. The pull-type or bottom-sinking array type marine seismic data acquisition cable is composed of three-component wave detectors or sensors, piezoelectric crystals or optical fiber sound pressure hydrophones and electronic or optical fiber three-component attitude sensors, wherein the three-component wave detectors or sensors, the piezoelectric crystals or the optical fiber sound pressure hydrophones and the electronic or optical fiber three-component attitude sensors are evenly distributed in the cable. The head end and the tail end of each seismic data acquisition towing cable are respectively towed by a deep-sea robot; the cable is connected with a seismic data acquisition and storage instrument or a modulation and demodulation instrument on the deep-sea robot; and a high-precision chip-level atomic clock in the seismic data acquisition and storage instrument or the modulation and demodulation instrument is used for timing the acquired marine seismic data and carrying out time synchronization and data processing on excitation signals of an underwater controllable air gun seismic source in the later period.

A modularized multi-energy complementary marine ranch comprehensive platform comprises three basic function modules, namely a power generation module, a communication module and a monitoring module which are arranged in a matched mode. A plurality of auxiliary function modules are flexibly and additionally arranged on the basic function module through basic modules; wherein the auxiliary function module and the basic function module are connected through a maritime work trestle; the basic function module is connected with the culture net cage through a cable so as to simultaneously realize power supply, communication and monitoring of the marine ranch. According to the platform, the various renewable energy sources such as wave energy, offshore wind energy and solar energy can be comprehensively utilized for in-situ power supply in deep and far sea, laying of long-distance ocean cables is avoided, the production cost is reduced, environmental pollution caused by a diesel generator is reduced, a breeding environment monitoring and equipment fault detection system is carried, and the operation and maintenance cost is further reduced.

The invention discloses a road operation guarantee system and an intelligent implementation method thereof. The guarantee system comprises a power generation module, a condensed ice information acquisition module, a condensed ice early warning module and a snow-melting agent spraying module. The power generation module comprises a solar panel, the condensed ice information acquisition module comprises a distributed sensor and a data processor, the condensed ice early warning module comprises an ice condensation danger level alarm, and the snow-melting agent spraying module comprises a liquid storage tank body, a filter, a centrifugal pump, an electromagnetic valve, a high-pressure spray head and an infrared sensor. The operation guarantee system has the advantages of being high in efficiency, economical, environmentally friendly, high in practicability, small in traffic interference and the like. The intelligent implementation method of the system is high in intelligent degree, real-time monitoring, multi-stage early warning, automatic triggering of the snow-melting agent and quantitative spraying of the snow-melting agent can be achieved, and the safety and smoothness of running of road infrastructures in ice and snow weather are guaranteed.

A power supply method of a broadband distribution system comprises arranging a first power supply module in a multi-service data access center; supplying power for the multi-service data access center after an external power supply is converted; arranging a second power supply module in a data exchange center; supplying power for the data exchange center after an external power supply is converted; transmitting the converted electric energy to data remote units along with signals and supplying power for the data remote units, wherein the data remote units are connected with the data exchange center. According to the power supply method of the broadband distribution system, the remote centralized power supply is achieved and accordingly the problem that the power supply of the data remote units is difficult is solved and a great convenience is brought to the power consumption management due to the centralized power supply.

The invention discloses an overhead ground wire ice melting device, comprising a mobile power generation device for outputting an alternating current to a rectifying device, and the rectifying device for receiving the alternating current output by the mobile power generation device, converting the alternating current into a direct current, and outputting the direct current through a cable to an ice covered overhead ground wire so as to melt the ice on the overhead ground wire. Through adoption of the overhead ground wire ice melting device, the problem in the prior art that it is difficult to provide power for the ice melting device is solved, and the ice on the ice covered overhead ground wire can be melted simply and effectively.