'1. An electric vehicle charging system, comprising: a selfpowered ecosystem and a charging terminal; the selfpowered ecological system is connected with the charging terminal and supplies power to the charging terminal; the charging terminal comprises a fixed station and a mobile charging mechanism, wherein the mobile charging mechanism is charged through the fixed station and then connected with the electric automobile to charge the electric automobile, and can charge unused batteries of the electric automobile or charge batteries used by the electric automobile when the electric automobile runs; the selfpowered ecosystem includes: the system comprises a wind power generation unit, a solar power generation unit, a methanol power generation unit, a rechargeable battery, a charging unit, a methane alcohol preparation unit, an electric hydrogen preparation unit, methanol preparation equipment and a main control unit; the main control unit is respectively connected with the wind power generation unit, the solar power generation unit, the methanol power generation unit, the rechargeable battery, the charging unit, the methane alcohol preparation unit, the electric hydrogen preparation unit and the methanol preparation equipment, and controls the work of each unit; the wind power generation unit, the solar power generation unit and the methanol power generation unit are respectively connected with electric equipment and directly supply power to the electric equipment; the wind power generation unit, the solar power generation unit and the methanol power generation unit are respectively connected with the charging unit, and the charging unit is used for charging the rechargeable battery; the main control unit is further used for acquiring the starting state of the electric equipment so as to acquire realtime electricity demand data; meanwhile, the main control unit acquires realtime generated energy data of the wind power generation unit, the solar power generation unit and the methanol power generation unit; the main control unit performs corresponding control according to the realtime power consumption demand data and the realtime power generation capacity data; when the generated energy data is larger than the electricity demand data, controlling a charging unit to charge the rechargeable battery with redundant electric energy; when the generated energy data is smaller than the electricity demand data, the rechargeable battery is started to supply electricity to the electricity utilization equipment; the methane alcohol preparation unit is used for preparing methanol from biomass through fermentation, and the prepared methanol is stored in the methanol storage unit; the methanol power generation unit generates power by using methanol and simultaneously generates carbon dioxide, and the generated carbon dioxide is conveyed to methanol preparation equipment; the electric hydrogen production unit is used for electrolyzing water to obtain hydrogen and oxygen, and conveying the hydrogen to methanol preparation equipment; the electric hydrogen production unit is started when the residual data of the generated energy reaches a set value, and hydrogen is produced by using the residual electric energy; the methanol preparation equipment is used for preparing methanol by utilizing hydrogen and carbon dioxide; the methanol preparation equipment is started when the residual data of the generated energy reaches a set high value to prepare methanol; the methanol power generation unit comprises a methanol hydrogen production system and a hydrogen power generation system, and the methanol hydrogen production system is connected with the hydrogen power generation system; the methanol hydrogen production system comprises a hydrogen production subsystem, a pressure regulating subsystem and a collection and utilization subsystem, wherein the hydrogen production subsystem, the pressure regulating subsystem, the hydrogen power generation system and the collection and utilization subsystem are sequentially connected; the hydrogen production subsystem is used for preparing hydrogen by using methanol water and comprises a solid hydrogen storage container, a raw material conveying device, a quick starting device, hydrogen production equipment and a membrane separation device; the storage container includes: the device comprises a container, a spacing mechanism arranged in the container, a driving mechanism connected with the spacing mechanism, a control module and an induction module; the spacing mechanism divides the container into at least two spaces; one of the two spaces is used for containing reaction liquid, and the other side is provided with liquid or solid carbon dioxide which is released by a hydrogen power generation system and then compressed; the control module is respectively connected with the driving mechanism and the induction module; the driving mechanism comprises a motor, and the sensing module comprises a pressure sensor or/and a liquid level sensor; the sensing module is used for sensing the amount of reaction liquid in the container and sensing the amount of liquid or solid carbon dioxide released and then compressed by the hydrogen power generation system; sending the sensing data to the control module; the control module controls the driving mechanism to act on the spacing mechanism according to the data sensed by the sensing module; when the liquid in the storage container is reduced or the carbon dioxide is increased to reach a set condition, the driving mechanism drives the spacing mechanism to act, so that the volume of the reaction liquid is reduced, and the volume of the carbon dioxide is increased; the storage container also comprises a liquefying device or/and a solidifying device which liquefies or/and solidifies the collected carbon dioxide; the hydrogen production equipment comprises a heat exchanger, a gasification chamber and a reforming chamber; the membrane separation device is arranged in the separation chamber, and the separation chamber is arranged in the reforming chamber; the solid hydrogen storage container and the storage container are respectively connected with hydrogen production equipment; liquid methanol and water are stored in the storage container; the quick starting device provides starting energy for the hydrogen production equipment; the quick starting device comprises a first starting device and a second starting device; the first starting device comprises a first heating mechanism and a first gasification pipeline, the inner diameter of the first gasification pipeline is 12 mm, and the first gasification pipeline is tightly wound on the first heating mechanism; one end of the first gasification pipeline is connected with the storage container, and the methanol is sent into the first gasification pipeline through the raw material conveying device; the other end of the first gasification pipeline outputs the gasified methanol, and then the gasified methanol is ignited and combusted through an ignition mechanism; or the other end of the first gasification pipeline outputs the gasified methanol, the temperature of the output methanol reaches the selfignition point, and the methanol directly selfignites after being output from the first gasification pipeline; the second starting device comprises a second gasification pipeline, the main body of the second gasification pipeline is arranged in the reforming chamber, and the methanol output by the first gasification pipeline or/and the second gasification pipeline heats the second gasification pipeline while heating the reforming chamber, so that the methanol in the second gasification pipeline is gasified; a heating pipeline is arranged on the inner wall of the reforming chamber, and a catalyst is placed in the heating pipeline; the quick starting device heats the reforming chamber by heating the heating pipeline; after the hydrogen production system is started, the hydrogen produced by the hydrogen production equipment of the hydrogen production system provides energy required by operation; the initial starting energy of the quick starting device is a plurality of solar starting modules, and each solar starting module comprises a solar cell panel, a solar energy and electric energy conversion circuit and a solar cell which are sequentially connected; the solar starting module provides electric energy for the first heating mechanism; or the initial starting energy of the quick starting device is a manual generator, and the manual generator stores the generated electric energy in a battery; the catalyst comprises Pt oxide, Pd oxide, Cu oxide, Fe oxide, Zn oxide, rare earth metal oxide and transition metal oxide; wherein, the content of the noble metal Pt accounts for 0. 8 percent of the total mass of the catalyst, the content of the Pd accounts for 1.14 percent of the total mass of the catalyst, the oxide of the Cu accounts for 612 percent of the total mass of the catalyst, the oxide of the Fe accounts for 38 percent of the total mass of the catalyst, the oxide of the Zn accounts for 820 percent of the total mass of the catalyst, the oxide of the rare earth metal accounts for 640 percent of the total mass of the catalyst, and the balance is transition metal oxide; or the catalyst is a copperbased catalyst and comprises the following substances in parts by mass: parts of CuO, parts of ZnO, parts of ZrO, and 5580 parts of Al2O313 parts of CeO213 parts of La2O; The solid hydrogen storage container stores solid hydrogen, when the hydrogen production system is started, the solid hydrogen is converted into gaseous hydrogen through the gasification module, and the gaseous hydrogen releases heat through combustion to provide starting heat energy for the hydrogen production equipment to serve as starting energy of the hydrogen production equipment; the methanol and the water in the storage container are conveyed to a heat exchanger through a raw material conveying device for heat exchange, and enter a gasification chamber for gasification after the heat exchange; the gasified methanol steam and water steam enter a reforming chamber, a catalyst is arranged in the reforming chamber, and the temperature of the lower part and the middle part of the reforming chamber is 300420 ℃; the temperature of the upper part of the reforming chamber is 400570 ℃; the reforming chamber is connected with the separation chamber through a connecting pipeline, and all or part of the connecting pipeline is arranged at the upper part of the reforming chamber and can continuously heat the gas output from the reforming chamber through the high temperature at the upper part of the reforming chamber; the connecting pipeline is used as a buffer between the reforming chamber and the separation chamber, so that the temperature of the gas output from the reforming chamber is the same as or close to that of the separation chamber; the temperature in the separation chamber is set to be 350570 ℃; a membrane separator is arranged in the separation chamber, and hydrogen is obtained from the gas production end of the membrane separator; the raw material conveying device provides power and conveys the raw materials in the storage container to the hydrogen production equipment; the raw material conveying device provides 0.155 MPa of pressure for the raw materials, so that the hydrogen prepared by the hydrogen production equipment has enough pressure; after the hydrogen production equipment is started to produce hydrogen, part of hydrogen or/and residual gas produced by the hydrogen production equipment is combusted to maintain the hydrogen production equipment to operate; hydrogen produced by the hydrogen production equipment is conveyed to a membrane separation device for separation, and the difference between the internal pressure and the external pressure of the membrane separation device for separating the hydrogen is more than or equal to 0.7M Pa; the membrane separation device is a membrane separation device for vacuum plating of palladiumsilver alloy on the surface of porous ceramic, the plating layer is the palladiumsilver alloy, the mass percent of palladium in the palladiumsilver alloy is 75% 78%, and the mass percent of silver in the palladiumsilver alloy is 22% 25%; the hydrogen production subsystem transmits the produced hydrogen to a hydrogen power generation system in real time through a transmission pipeline; the transmission pipeline is provided with an air pressure regulating subsystem for regulating the air pressure in the transmission pipeline; the hydrogen power generation system generates power by using the hydrogen prepared by the hydrogen preparation subsystem; the air pressure regulating subsystem comprises a microprocessor, an air pressure sensor, a valve controller, an air outlet valve and an air outlet pipeline; the gas pressure sensor is arranged in the transmission pipeline and used for sensing air pressure data in the transmission pipeline and sending the sensed air pressure data to the microprocessor; the microprocessor compares the air pressure data received from the air pressure sensor with a set threshold interval; when the received pressure data is higher than the maximum value of the set threshold interval, the microprocessor controls the valve controller to open the gas outlet valve for a set time, so that the gas pressure in the transmission pipeline is in a set range, meanwhile, one end of the gas outlet pipeline is connected with the gas outlet valve, the other end of the gas outlet pipeline is connected with the hydrogen production subsystem, and the gas outlet pipeline is used for heating equipment needing to be heated of the hydrogen production subsystem through combustion; when the received pressure data is lower than the minimum value of the set threshold interval, the microprocessor controls the hydrogen production subsystem to accelerate the conveying speed of the raw materials; the collection and utilization subsystem is connected with an outlet of an exhaust channel of the hydrogen power generation system, hydrogen, oxygen and water are respectively collected from the exhausted gas, the collected hydrogen and oxygen are used by the hydrogen production subsystem or/and the hydrogen power generation system, and the collected water is used as a raw material of the hydrogen production subsystem, so that the water can be recycled; the collection and utilization subsystem comprises a hydrogenoxygen separator, a hydrogenwater separator, a hydrogen check valve, an oxygenwater separator and an oxygen check valve, separates hydrogen from oxygen, and then separates hydrogen from water and oxygen from water respectively; the hydrogen power generation system comprises a fuel cell, wherein the fuel cell comprises a plurality of sub fuel cell modules, and each sub fuel cell module comprises at least one super capacitor; the hydrogen production equipment also comprises an electric energy estimation module, a hydrogen preparation detection module and an electric energy storage module; the electric energy estimation module is used for estimating whether the electric energy generated by the hydrogen power generation system in real time can meet the electric energy required to be consumed during reforming and separation; if yes, closing the quick starting device; the hydrogen preparation detection module is used for detecting whether the hydrogen prepared by the hydrogen preparation equipment in real time is stable; if the hydrogen produced by the hydrogen production equipment is unstable, controlling the quick starting device to start again, storing the obtained electric energy part in the electric energy storage module, and using the electric energy storage module when the electric energy is not enough for the consumption of the hydrogen production equipment; the hydrogen power generation system is a fuel cell system including: a gas supply device and a galvanic pile; the gas supply device utilizes compressed gas as power and automatically conveys the compressed gas into the electric pile; the fuel cell system also comprises an air inlet pipeline and an air outlet pipeline; the compressed gas is mainly oxygen; air and oxygen are mixed in a mixing container and then enter a galvanic pile; the fuel cell system further includes a gas conditioning system; the gas regulating system comprises a valve regulating control device, an oxygen content sensor or/and a compressed gas compression ratio sensor; the oxygen content sensor is used for sensing the content of the air and the oxygen in the oxygen mixed in the mixing container and sending the sensed data to the valve regulation control device; the compressed gas compression ratio sensor is used for sensing the compression ratio of the compressed oxygen and sending the sensed data to the valve regulation control device; the valve adjusting control device adjusts the oxygen delivery valve and the air delivery valve according to the sensing result of the oxygen content sensor or/and the compressed gas compression ratio sensor, and controls the delivery ratio of the compressed oxygen and the air; the power generated after the compressed oxygen enters the mixing container pushes the mixed gas to a reactor for reaction; the fuel cell system also comprises a humidification system, the humidification system comprises a humidity exchange container and a humidity exchange pipeline, and the humidity exchange pipeline is part of the air inlet pipeline; the gas reacted by the fuel cell is conveyed to the humidity exchange container through the gas outlet pipeline; the material of the humidity exchange pipeline is only permeable to water and impermeable to air, so that the reacted gas and natural air are subjected to humidity exchange, and the gas cannot circulate; the methanol production apparatus includes: the device comprises a nitrogen conveying device, a hydrogen conveying device, a carbon dioxide conveying device, a first mixer, a second mixer, a micro fixed bed reactor, a back pressure valve, an alcoholwater separator, a chromatograph, a methanol liquefying device, a methanol collecting container and a main control module; the carbon dioxide conveying device is connected with one side of the storage container for collecting carbon dioxide; conveying the prepared methanol to one side of a methanolwater mixed solution of a storage container; the nitrogen conveying device comprises a nitrogen storage container and a first conveying pipeline, and the first conveying pipeline is provided with a first stop valve and a first mass flow meter; the carbon dioxide conveying device comprises a carbon dioxide storage container and a second conveying pipeline, and the second conveying pipeline is provided with a second stop valve and a second mass flow meter; the hydrogen conveying device comprises a hydrogen storage container, a third conveying pipeline and a fourth conveying pipeline, wherein the third conveying pipeline is provided with a third stop valve and a third mass flow meter, and the fourth conveying pipeline is provided with a fourth stop valve and a fourth mass flow meter; the hydrogen storage container is connected with the first conveying pipeline through a third conveying pipeline, and the third conveying pipeline and the first conveying pipeline are intersected in a first threeway valve; the hydrogen storage container is connected with the second conveying pipeline through a fourth conveying pipeline, and the fourth conveying pipeline and the second conveying pipeline are intersected with a first fourway valve; the first threeway valve is connected with the first mixer, and the other end of the first mixer is connected with the second threeway valve; the second threeway valve is connected with the miniature fixed bed reactor through a fifth conveying pipeline, and the fifth conveying pipeline is provided with a fifth mass flowmeter and a pressure gauge; the other end of the miniature fixed bed reactor is connected with a fourth threeway valve, the fourth threeway valve is also connected with a back pressure valve, and the other end of the back pressure valve is connected with a second fourway valve; the first fourway valve is connected with the second mixer, and the other end of the second mixer is connected with the third threeway valve; the alcoholwater separator, the second threeway valve are connected with a third threeway valve, and the alcoholwater separator, the methanol liquefying device and the chromatograph are connected with a second fourway valve; the methanol liquefying device is connected with the methanol collecting container; the main control module controls the action of each part, firstly controls highpurity nitrogen and highpurity hydrogen to be mixed in a set proportion through the first mixer and then to be evacuated through the catalyst bed, switches the gas into a mixed gas of hydrogen and carbon dioxide after the reduction of the catalyst is completed, the gas passes through the catalyst bed, is boosted to a certain pressure through the backpressure valve, then is separated into methanol and water through the alcoholwater separator, and unreacted gas continues to pass through the reactor for circular reaction after being supplemented by feed gas.'