436results about How to "Affect security" patented technology

The invention relates to an integrated fertilization method under the condition of NPKS of double-cropping crops of wheat and corn, comprising the NPKS of wheat to sow corn and the NPKS of corn to sow wheat. In the invention, under the conditions of NPKS of medium and high yield level of wheat and corn which can be harvested twice a year, the fertilization amount per mu is as follows: 25-32kg of N, 13-18kg of P2O5 and 13-18kg of K2O, the higher of the yield of the two crops, the greater of the application proportion of the nitrogen fertilizer therein on the wheat, while the allocation proportion of phosphorus and potassium is slightly different. The integrated fertilization method under the condition of NPKS can not only give consideration to complete and strong seedlings and high and stable yield of the two-cropping rotation crops of wheat and corn, but can also give full play to the positive influence of NPKS to increase soil organic matter and improve soil fertility, eliminating the negative influence, and can further reduce waste and environmental pollution caused by unreasonable input and allocation of chemical fertilizer.

The invention relates to a motor control system for an oil extractor in an oil field, which comprises a plurality of permanent magnet motors, a three-phase rectifying cabinet, a super capacitor and aplurality of inverters, wherein the three-phase rectifying cabinet is externally connected with a three-phase power-frequency alternating-current power grid and outputs a direct-current power supply;the positive end of the direct-current power supply is connected with the positive end of the super capacitor, while the negative end is connected with the negative end of the super capacitor; the positive end of the super capacitor is connected with the positive end of each of the inverters respectively, while the negative end is connected with the negative end of each of the inverters respectively; and the three-phase output end of each of the inverters is connected with the three-phase input end of each of the motors respectively. Through the direct-current parallel-in operation of the plurality of permanent magnet motors, the motor control system provides the energy generated by dropping potential energy of an oil extraction rod of the oil extractor in the oil field for the permanent magnet motors which raise electromotion so as to greatly improve the operation efficiency of the whole system.

The embodiment of the invention discloses a method and system for detecting lithium metal separation of a lithium ion battery. The method comprises: charging testing is carried out on a lithium ion battery and voltage and capacity data of the lithium ion battery during the charging testing are collected; differential processing is carried out on the voltage and capacity data to obtain a dV / dQ curve; and according to the dV / dQ curve, the lithium metal separation state inside the lithium ion battery is determined. According to the invention, the data are processed and analyzed and thus the negative lithium metal separation of the lithium ion battery is detected accurately, so that a detection error caused by the human subjectivity is avoided and the influence on safety of the battery by thenegative lithium metal separation is eliminated and thus the service life and the safety of the lithium ion battery are improved. Moreover, the method and system are operated simply, conveniently, andefficiently; and the detection precision is high.

The invention provides a method and device for determining a safe charging condition of a lithium ion battery, wherein the method and device includes a step or unit adopting a preset charging rate for charging a three-electrode lithium ion battery at a preset temperature; if voltage difference between a negative electrode and a reference electrode is greater than zero, the three-electrode lithium ion battery is determined not to generate lithium precipitation, that is to say, in the step or unit, a condition of adopting the preset charging rate for charging the lithium ion battery at the preset temperature is a safe charging condition. The safe charging condition of the lithium ion battery is determined, so that lithium evolution of the lithium ion battery caused by unreasonable charging conditions is avoided, the safety performance of the lithium ion battery is avoided from being affected, the purposes of improving the service life and the safety performance of the lithium ion battery are achieved, and the method and device have the advantages of simple and easy operation.

The invention discloses an ACC / AEB system based on human-imitating driving. The system comprises an environment sensing module, a data fusion module, a decision control module, a human-imitating driving module and an execution module. By means of the technical scheme, an enhanced neural network is utilized, the learning of driving behavior parameters of a driver can be achieved in the driving process, the driving behavior parameters are compared with the parameters obtained through the calculation of the decision control module and corrected, the situation that in the decision control process,acceleration, deceleration, braking force, acceleration rate and deceleration rate are over high or over low, and accordingly the comfort and the safety of the driving are affected is avoided, so that the ACC / AEB system is more suitable for the driving characteristics of the driver, the drive is made to have the same feeling as his / her own driving, the human-imitating driving in the ACC / AEB process is achieved, and the system better meets the driving requirements of the driver.

The invention provides a control method of an electric pressure cooker, a control device of the electric pressure cooker, and the electric pressure cooker. The control method of the electric pressure cooker comprises the steps that when an instruction of high flames for concentration is received, a heating device of the electric pressure cooker is controlled to carry out heating in a first heating mode; the interior state of the electric pressure cooker is detected, and whether the interior state of the electric pressure cooker meets the conditions of a maintenance stage or not is judged; when it is determined that the interior state of the electric pressure cooker meets conditions of the maintenance stage, the heating device is controlled to carry out heating in a second heating mode, so that the temperature of a cooker body of the electric pressure cooker is kept within a preset temperature range; when the time length of the situation that the temperature of the cooker body of the electric pressure cooker is kept within the preset temperature range reaches a preset time length, the heating device is controlled to stop heating. According to the technical scheme of the control method of the electric pressure cooker, the control device of the electric pressure cooker, and the electric pressure cooker, the temperature of food in the cooker can be kept above the boiling point so as to achieve the effect of sufficient boiling, the taste of soup in the electric pressure cooker can be rich, and the requirements of users for cooking are met.

The invention discloses a login method and system for an application program. According to the login method for the application program, each fingerprint is set with a sole corresponding login account number; and a user can login the application program with the corresponding account number as long as inputting a fingerprint verification when logging in the application program. In the manner, convenient and fast login of the application program can be achieved; and the safety of the account number can be effectively ensured.

The invention provides an equipment control method, device ad system. The equipment control method is applied to a controller of the system. The controller is used for acquiring control information from a mobile terminal or a server through a wireless manner; if the control information indicates that target equipment is authenticated to be qualified, the controller controls the target equipment to be in an unlocking state, so that an operator can operate the target equipment, and thus the driving safety and reliability of the equipment are improved; furthermore, the mobile terminal is used to substitute for an existing vehicle-mounted card reader or a vehicle-mounted display / input terminal to acquire the authentication information of a user, so that the hardware cost of the equipment per se is reduced; because the mobile terminal and the controller are connected in a wireless manner, wiring in the equipment is simplified; the visual field of a driver cannot be sheltered, and thus the personnel safety of the driver and surrounding personnel thereof, as well as the safety of surrounding goods and equipment cannot be influenced.

The invention relates to a coating for GH907 products under ocean environment and preparation and use methods thereof. The coating comprises the following raw materials in mass ratio: 20-40 percent of high-temperature resisting multi-component pulverulent body, 8-15 percent of alumina powder, 1-5 percent of nanometer titanium dioxide, 1-5 percent of mica powder, 1-3 percent of zinc powder and the balance of potassium silicate, wherein the high-temperature resisting multi-component pulverulent body comprises Ni-Cr-Al-Y powder, magnesia, chromic oxide and calcium oxide. The raw materials are mixed by adopting a mechanical dispersion way of a circulation ball mill. When the coating is in use, the viscosity of the coating is adjusted by distilled water, and the coating is sprayed in an airing chamber by using a spray gun through adopting a spraying method. An inorganic salt is used as a film former and nanometer metal oxide catalysts, refractory oxide and metal powder are added, therefore, the prepared coating has erosion resistance at normal temperature but also high temperature oxidation resistance and plays the roles of preventing wetness and heat, mould and salt mist.

The invention belongs to the technical field of lithium ion batteries. The invention particularly relates to a lithium ion battery charging lithium precipitation real-time detection method and system.The method comprises the following steps of: carrying out intermittent charging test on a lithium ion battery; when the electric quantity is increased by 1%, an SOC is switched off for 3s, the intermittent period voltage change (dV) and current change (dI) are collected, a resistance value (ZTR) is calculated through the ohm law (dU / dI), a distribution curve of the ZTR along with the charging capacity is drawn, and the lithium precipitation state in the lithium ion battery is judged according to the distribution curve of the ZTR along with the charging capacity. The system comprises a test acquisition module, a data processing module and a lithium precipitation judgment module. The negative electrode lithium precipitation of the lithium ion battery can be accurately detected at a low temperature (10 DEG C), detection errors caused by artificial subjectivity are avoided, the service life of the lithium ion battery is prolonged, the safety performance of the lithium ion battery is improved, operation is easy, convenient and efficient, and the detection precision is high.

The invention discloses a segmented rotor consequent pole permanent magnet motor. The segmented rotor consequent pole permanent magnet motor comprises two segments of rotors, wherein the two segments of rotors are connected in an axial direction of the rotors, a surface of each segment of rotor is provided with multiple convex poles, grooves among the adjacent convex poles are embedded with permanent magnets, a convex pole and permanent magnet alternating arrangement structure is formed on surfaces of the rotors, the shape of the permanent magnets is in matching with the shape of the grooves, each surface of the permanent magnets and each surface of the grooves realize tight contact, upper surfaces of the permanent magnets and upper surfaces of the convex poles are arc-shaped surfaces, radian of the upper surfaces of the permanent magnets and radian of the upper surfaces of the convex poles are identical, all the upper surfaces of the convex poles and all the upper surfaces of the permanent magnets form an integral cylindrical surface, the permanent magnets on the two segments of rotors circumferentially offset for a half electric period angle, magnetizing directions of the permanent magnets on one segment of rotor are identical, and magnetizing directions of the permanent magnets on different segments of rotors are opposite. The segmented rotor consequent pole permanent magnet motor is advantaged in that disadvantages of a traditional surface-mounted permanent magnet motor are solved, permanent magnet materials and protection sleeves are saved, and magnetization of an end portion of a rotation shaft can be avoided.

The invention discloses a control method for a Bluetooth device, which is suitable for the Bluetooth device. The method comprises the following steps of: acquiring an account and a password; receiving the matching requirement sent from a control device; verifying the account and password according to the matching requirement; creating a wireless connection with the control device when the verification of account and password passes; receiving the Bluetooth control order sent from the control device; and executing an action according to the Bluetooth control order. In the method, firstly a set of account and password is acquired by a Bluetooth device, the matching requirement sent from a control device is received when passing the control device, and the account and password are verified according to the matching requirement; a wireless connection with the control device is created when the verification of account and passwords passes, and the Bluetooth control order sent from the control device is received; finally, an action corresponding to the Bluetooth control order is executed. When entering a specific occasion, the Bluetooth device can be promptly adjusted to silence mode or directly shut down via the matching requirement and control mechanism, therefore the interference or the harm to environment is prevented.

The invention discloses a control method and device of heating equipment and the heating equipment. The method comprises the steps of obtaining the whole machine temperature of the heating equipment and the temperature of the environment where the heating equipment is located; comparing the environment temperature and a first preset temperature to generate a first comparison result; comparing thewhole machine temperature and a second preset temperature to generate a second comparison result; and controlling the heating power of the heating equipment according to the first comparison result and the second comparison result. When an electric heater works, the temperature of parts of the whole machine is increased, in order to avoid the situation that the temperature of the whole machine istoo high and heating grill feeling is caused and also avoid the situation that as the parts operate at excess temperature, the service life of the whole machine and the user safety are affected, the whole machine need to be subjected to temperature control, the power of the whole machine is controlled, and comfortable heating, energy conservation and consumption reduction can be achieved.

The invention discloses a method, a client, an alliance chain and a system for realizing a light wallet mechanism in the alliance chain. The method belongs to the field of block chains, and comprisesthe following steps: a wallet client running a trusted execution environment initiates a transaction to an alliance chain in a common execution environment, so that a receiving node stores the transaction consensus into the alliance chain and a local Merkel tree; after the wallet client is switched to the trusted execution environment, if the root node hash value of the Merkel tree stored locallyis not equal to the root node hash value of the Merkel tree with latest transaction information recorded in the alliance chain, the local storage is updated until the root node hash value is equal tothe root node hash value of the Merkel tree; and a verification path of the transaction is acquired in the Merkel tree from the alliance chain to recalculate a root node hash value of the Merkel tree,and the root node hash value is compared with the root node hash value of the Merkel tree locally stored in the wallet client to determine whether the transaction is successful or failed. According to the invention, the light wallet mechanism can be realized in the alliance chain, and the security of the light wallet mechanism is improved.

The invention provides a safety and large-capacity lithium ion battery. The safety and large-capacity lithium ion battery adopts a small core package, multiple small core packages are connected in parallel through a current-limiting connecting piece so as to form a battery core package, the small core packages are separated by heat-conducting partitions; the core package is simple in manufacturing by using the small core packages, the heat conducting partition deduces the internal heat of the battery and reinforces a battery structure, the current-limiting connecting piece prevents each small core package from over-current charging or discharging to influence the security of the battery; therefore, the monomer lithium ion battery manufactured through the invention has safety, high-capacity and high-power electrical property, and the formed battery system is simple in structure, safe, reliable and low in cost.

The invention particularly relates to an alternating-current contactor in a low-voltage alternating-current control circuit and a control method of the alternating-current contactor. The alternating-current contactor comprises a circuit control switch, a starting run switch, a current output control unit, a direct-current power supply conversion unit, an energy storage unit, a central control unit and electric equipment, wherein a low-voltage alternating-current voltage end L is electrically connected with a K1 of the circuit control unit through an auxiliary switch circuit of the electric equipment; the auxiliary switch circuit is connected in parallel with the starting run switch; a one voltage detection end of the central control unit is electrically connected with the direct-current power supply conversion unit; another voltage detection end of the central control unit is electrically connected with an alternating-current output voltage end A; the voltage end A and a voltage end B are arranged at the two ends of the auxiliary switch circuit; and the central control unit is electrically connected with the circuit control switch, the starting run switch and the energy storage unit respectively. The working state of the electric equipment can be adjusted automatically, and the normal operation of the production process flow is ensured.

The invention provides a spacecraft propellant on-track supplementation system. The system comprises a propellant receiving device; the propellant receiving device comprises a pressurized gas reuse unit, a propellant liquid supplemental path unit and a propellant removal blowing unit. The invention also provides an implementation method for propellant on-track supplementation by using the above-mentioned spacecraft propellant on-track supplementation system, and the method comprises the following steps of a gas injection step, a docking step, a leak detection step, a supplement step, a removalblowing step and a separation step. The invention also provides an aircraft, and the aircraft comprises a plurality of propellant receiving devices in the above-mentioned spacecraft propellant on-track supplement system. The propellant receiving devices are provided with storage box pressurized gas multiple reuse functions, and compared with the method of directly discharging the storage box pressurized gas and then conducting propellant supplement, pressurized gas does not need to be supplemented, and propellant supplement cost is reduced.

The invention particularly discloses a burglary-resisting monitoring and positioning method for an armored cable, which comprises the following steps: 1, selecting a grounding point at one end of a cover layer of the armored cable to be monitored to serve as a testing point; 2, piling a pile at the place near the grounding point selected in the step 1, and sleeving a transformer on a grounding wire of the cover layer of the armored cable; 3, sending signal at specific frequency by an armored cover layer burglary-resisting monitor terminal, and coupling the signal into the armored cover layer through the grounding pile; 4, receiving the specific frequency signal and reflected signal of the armored cover layer by the armored cover layer burglary-resisting monitor terminal through the transformer; 5, in case the armored cover layer is damaged, breaking point occurs or impedance is increased, detecting the reflected signal at the signal emission point, and calculating the distance between the break point and the signal emission point through detecting the time difference between the transmission signal and reflected signal.

The invention discloses a computer user terminal authentication method, comprising the steps of: A, searching ambient Bluetooth equipment by using a Bluetooth receiving device after a computer is started; and B, if the Bluetooth equipment is searched, comparing the address of the Bluetooth equipment with address information stored in the computer, if the address and the address information are the same, keeping the computer work normally; and if the Bluetooth equipment cannot be searched, or the address information of the searched Bluetooth equipment is inconsistent to the address information stored in the computer, enabling the computer not to process the received control signals. The method can further improve the computer safety.

The invention provides an electric pan, an upper cover thereof and a control method. The control method is used for controlling the electric pan and includes the steps that an environmental parameter in the electric pan is detected; whether the environmental parameter reaches a preset value or not is judged; when the value of the environmental parameter reaches the preset value, a steam channel is opened by an opening and closing device; if the value of the environmental parameter does not reach the preset value, the steam channel is closed by the opening and closing device. According to the provided method, when steam needs to be exhausted, namely the environment parameter reaches the preset value, the steam channel is opened; when steam does not need to be exhausted, namely the environment parameter does not reach the preset value, the steam channel is closed. Unnecessary heat loss is avoided, and it is avoided that external bacteria, dust and the like enter the steam channel to affect safe and sanitary use of the electric pan.

The invention provides an on-satellite autonomous imaging task planning system. The on-satellite autonomous imaging task planning system comprises a satellite orbit recursion forecasting module, an on-orbit imaging task forecasting module, an on-orbit imaging task design module, an on-orbit task synthesis module, an on-orbit imaging task conflict optimization sorting module and an on-orbit imagingimplementation module. A satellite user only needs to send longitude and latitude of an imaging area to a satellite. The satellite autonomously calculates the imaging time, calculates and sets imaging and control parameters and intelligently arranges imaging, a user does not need to understand a complex satellite design and use method, then imaging of a target area is completed conveniently, rapidly and efficiently, and meanwhile the situation that instruction arrangement errors affect the safety of the satellite is avoided. The on-orbit task synthesis module synthesizes adjacent tasks meeting conditions according to constraints such as satellite attitudes, imaging sensors and imaging time to generate a new task sequence.

The invention discloses a fiber-optic endoscope used for a half-grouting sleeve and machining method of the fiber-optic endoscope and application of the fiber-optic endoscope, and relates to the technical field of sleeve detecting and monitoring. A grouting cavity is formed in the half-grouting sleeve. The bottom end of a steel bar is fixedly connected with a concrete structure layer. The upper part of the steel bar is fixedly connected into the grouting cavity. An outer pipe is made of transparent materials and fixedly connected with the cutting surface of the steel bar. The top end of the outer pipe is plugged through a stopper. The bottom end of the outer pipe extends from the bottom of the half-grouting sleeve to the exterior of the half-grouting sleeve. The side wall of the outer pipeis provided with a tick-mark line. The fiber-optic endoscope is arranged in the outer pipe and can slide in the outer pipe. The observation end, a probe and optical fiber of the fiber-optic endoscopeare used for being connected with a display screen, obtaining images and transmitting image information correspondingly. The fiber-optic endoscope can intuitively, clearly and quantitatively obtain the grouting fullness of the interior of the half-grouting sleeve, judge accurately the construction quality of the half-grouting sleeve, and deal with unqualified parts in time so as to avoid the influence of the half-grouting sleeve with unqualified construction quality on the overall safety of the housings.

The invention discloses a recycling method for braking energy of an electric vehicle and the electric vehicle and belongs to the field of vehicles. The electric vehicle comprises a man-machine control device, a vehicle controller, a motor and a battery. When the motor receives a braking energy recycling request, target reverse torque is determined, and the motor works reversely so as to convert the braking energy of the electric vehicle into electric energy to be stored in the battery. The target reverse torque is determined according to a target recycling grade which is one of the multiple recycling grades used for indicating the magnitude of the output power of the motor, therefore, for different target recycling grades, the motor works reversely with different output power, and the problem of the single braking process of the electric vehicle is solved. When the electric vehicle has the high speed before entering a braking state, the motor can works reversely with the large output power, accordingly the lasting time of the electric vehicle in the braking state is shortened, and the situation that the lasting time is excessively long, thus the safety of the electric vehicle is affected is avoided.

The invention discloses a full-automatic mining comprehensive protector testing system, which comprises a hardware and a software, and is characterized in that: the hardware comprises a voltage stabilizer, a testing table and a special box which corresponds to the model of the comprehensive protector one to one; the testing table comprises a programmable control signal generator and a control computer; the programmable control signal generator is connected with a relay; the generator and the relay are connected with the voltage, current measuring block, a switch input output module and a timing module; the three modules are connected with the control computer through RS485 bus, and are used for controlling the computer to connect a printer simultaneously; the software is mainly portioned into user interface module, system maintenance module, task management module and comprehensive testing module. The full automatic mine comprehensive protector testing system has the characteristics of capability of reducing work intensity of testing personnel, increasing testing accuracy and error operation, so that the problem of influence on production and safety caused by untimely and inaccurate testing of comprehensive protector is solved.

The invention relates to a layout method for screen heating surface of furnace tank of a fluidized bed boiler, which comprises a boiler and at least a separator respectively provided at two sides of the boiler. The invention is characterized in that the screen heating surface is vertically disposed in the middle of the boiler, the upper end of the screen heating surface passes out of the top of the boiler and connected with an outlet header, and the lower end of the screen heating surface passes out from the water cooling wall at the side wall of boiler through pin and abrasion-proof casting material and connected with an inlet header. The invention is easy to be laid out, and is not influenced by volume, parameters and the number of separators.

The invention belongs to the technical field of battery manufacturing, and particularly relates to a battery top cover assembly structure. The battery top cover assembly structure comprises a first pole, a second pole and a top cover sheet, the first pole is provided with a first welding ring, the second pole is provided with a second welding ring, the top portion of the first pole is encapsulatedwith a first plastic piece matched with the first welding ring, the top portion of the second pole is encapsulated with a second plastic piece matched with the second welding ring, the first pole andthe second pole pass through the seal ring and are installed at the top cover sheet. By arranging an encapsulating structure of the top cover aluminum ring and the poles, the problem of generation ofa metal wire is solved, the safety of the battery is improved, the overcurrent capacity of the poles is ensured, and the production process is simplified, so that the production cost is reduced. Besides, the invention further discloses a battery top cover assembly method.

A dry method desiliconization of a bauxite especially relates to the desiliconization method of an lateritic bauxite and an accumulating bauxite. The present invention is characterized in that the desiliconization process is that after dried, the bauxite is broken up and screened and the material under the screen is classified by the wind power. The material on the screen and the coarse grains classified by the wind power are taken as a combined concentrate and the fine grains classified by the wind power are taken as a tailing. The present invention has a stable and reliable process flow and does not need new water, capable of reclaiming the fine grain-level concentrate of more than 0.02mm effectively without the waste water pollution. The tailing can be stored or used to reclaim a goaf directly and make the refractory material and concrete. The investment construction and management of the tailing warehouse and the influence on the circumjacent environmental safety can be avoided.

The invention discloses an industrial control security defense system which comprises a potential threat exclusion layer, an industrial control security audit system, a monitoring center, a field monitoring layer, a control layer and a physical layer. The potential threat elimination layer comprises a deep protocol analysis mechanism and a white list mechanism; the field monitoring layer performs data exchange and behavior control on the control layer and the physical layer through an industrial Ethernet; the industrial control security auditing system can analyze and identify illegal operation, abnormal events and external attacks in an industrial control network from multiple angles and give an alarm in real time; identity recognition is carried out through multiple means, system operation authority can be limited, override operation and malicious operation are avoided, it is avoided that external equipment carries viruses to affect system safety, meanwhile, exclusive detection can be carried out on common attack means, and the operation resource occupancy is small. The alarm response time of the whole system can be prolonged through unified monitoring management of the monitoring center, and the accident handling speed is increased.

The invention discloses a measurable range expansion method and system of a scattering test supporting suspension system. An optimal work pattern is provided for a great circle scanning mode adopted by an existing double-support one-suspension system and used for expanding the measurable range of the double-support one-suspension system of a scattering test. Since a measurement result of a radar scattering cross section is obtained through non-linear matrix conversion in the great circle scanning mode of the double-support one-suspension system, the measurement mode has no data integrity. In the optimal work pattern, firstly, by changing the length of a lifting rope, measurement is conducted at different pitch angles alpha, then by changing the height difference between two supporting rods, measurement is conducted at different cross rolling angles beta, and the two measurement results are comprehensively used. According to calculation, compared with a normal work pattern, the measurable range expansion method has the advantage that the measurable range can be increased from 64% to 90%. In a mechanical design aspect of a bracket system, only the micro-adjustment degree of freedom of a transverse space between the supporting rods needs to be increased, the augmented cost for the change is limited, the stress of the supporting rods is basically not changed, and the system reliability and safety cannot be influenced.

The invention relates to a vehicle, and a heating control method of a power battery thereof, and belongs to the technical field of electric vehicles. The vehicle comprises a power battery, a battery heating system, a battery management system and a DC / DC module, the DC / DC module is in power supply connection with the battery management system, the battery management system controls and is connected with the battery heating system, the battery management system is connected with the power battery in an acquisition manner, and a timed awakening unit is arranged on the DC / DC module. When the vehicle stops and is powered off, the DC / DC module is awakened and started at regular time by the timed awakening unit to supply power to the battery management system, the battery management system detects the temperature of the power battery, and when it is detected that the temperature of the power battery is lower than a preset temperature lower limit value, the battery heating system is controlled to heat the power battery until the temperature of the power battery reaches a preset temperature upper limit value, so the link that a driver makes an appointment in advance is omitted, the vehiclecan achieve automatic heating control over the power battery according to the timing awakening unit when the air temperature is low or suddenly reduced in winter, and the service life of the power battery can be prolonged.