214results about How to "Extended run time" patented technology

The invention, which relates to the technical field of data processing, provides a grid-connected and off-grid integrated photovoltaic energy storage system comprising a photovoltaic power generation module, an energy storage module, a load module, a control module, a conversion module and a power adjustment module. The control module comprises a data acquisition module, a state analysis module and a switching instruction generation module, and when the power grid suitability result shows that the external power grid meets the grid connection condition, a grid connection instruction is generated; when the power grid suitability result shows that the external power grid does not meet the grid connection condition and the energy storage capability evaluation result shows that the energy storage module has the capability of meeting the load requirement, generating an off-grid instruction; if the energy storage capability evaluation result shows that the energy storage module cannot meet the load demand, generating a load adjustment instruction, and controlling the load module to reduce the energy distribution proportion of the non-critical load; the power adjustment module is used for dynamically adjusting the output power proportion of the energy storage module according to the off-grid electric energy data in the off-grid mode; the electric energy distribution effect of the energy storage system is improved.

The invention provides a method for reducing polymer adhesion in ethylene oligomerization. According to the method, a double-kettle series polymerization process is adopted, a phosphine-nitrogen ligand, a chromium metal compound and a cocatalyst are added into a first reaction kettle, a nucleating agent is added into a second reaction kettle, the reaction is carried out in the first reaction kettle in the early stage and transferred to the second reaction kettle in the later stage for continuous reaction, oligomer is converted into high polymer through the nucleating agent, and the high polymer is stored in a particle form; therefore, the phenomenon that the oligomer winds the stirring paddle is reduced or avoided, the aggregation of the polymer in the reaction kettle is greatly reduced, and the operation time of the device is prolonged. The catalytic system can catalyze the ethylene oligomerization reaction with high activity, the catalytic activity reaches up to 10 * 10 < 6 > g product / (molCr.h), the overall selectivity of 1-hexene and 1-octene with high added values can reach 90% or above, and the phenomenon that a polymer is hung on a stirring paddle is greatly reduced.

The invention belongs to the technical field of solid waste recovery systems. The system comprises a cracking furnace, and the discharging end of the cracking furnace is connected with a sealing structure; the sealing structure comprises a first sealing cover and a second sealing cover, the second sealing cover is rotationally arranged on a discharging port of the cracking furnace, the first sealing cover is arranged at the end of the discharging port, the first sealing cover and the second sealing cover can be movably connected in an inserted mode relatively, and a driving mechanism is arranged on the outer side wall of the first sealing cover and the outer side wall of the second sealing cover. The driving mechanism drives the sealing cover I and the sealing cover II to move relatively; a sealing body is arranged among the sealing cover I, the sealing cover II and the discharge hole; the discharge hole is in friction rotating connection with the sealing cover I and the sealing cover II through the sealing body; the sealing performance is better, external gas is prevented from entering, carbonization of oil gas is reduced, and the oil extraction rate is increased.

The invention provides a composite additive based on 2, 6-butylated hydroxytoluene, phosphate fire-resistant oil and application, the composite additive is a mixture of 2, 6-butylated hydroxytoluene and Revonox 501, the addition amount of 2, 6-butylated hydroxytoluene is 0.01%-0.10%, the addition amount of Revonox 501 is 0.0020%-0.0050%, the addition amount of 2, 6-butylated hydroxytoluene is 0.01%-0.10%, the addition amount of 2, 6-butylated hydroxytoluene is 0.0020%-0.0050%, and the addition amount of 2, 6-butylated hydroxytoluene is 0.01%-0.10%. After the phosphate fire-resistant oil is added with the composite additive, the comprehensive performance of the phosphate fire-resistant oil in the operation process can be improved, and the defects that after new phosphate fire-resistant oil is loaded into a system, the action flexibility of a steam turbine assembly is reduced and a servo valve of a speed regulating system is corroded and jammed due to the phenomena that the acid value is increased, the resistivity is reduced, oil sludge is generated and the like in the use process are overcome; and the operation safety of a turbine set of a power plant is influenced.

The utility model discloses a detection device and a battery production system. The detection device comprises a mounting rack; the first light source assembly is arranged on the mounting frame, and the first light source assembly is used for irradiating the full circumferential edge of the battery piece; the second light source assembly is arranged on the mounting frame, the second light source assembly is used for being arranged on one side of the battery piece in the thickness direction of the battery piece, and the second light source assembly is used for irradiating the battery piece in the thickness direction of the battery piece; the battery piece is located in the irradiation range of the second light source assembly. And the imaging piece is arranged on the mounting frame, and the imaging piece is used for photographing and imaging the battery piece which is jointly irradiated by the first light source assembly and the second light source assembly. The accuracy of the gray value of the image imaged by the camera can be improved.

The invention discloses a harmful gas detection device. The harmful gas detection device comprises a handheld mechanism, a detection mechanism arranged on the handheld mechanism and an external connection mechanism arranged on the detection mechanism, the detection mechanism comprises a connecting cylinder arranged on the handheld mechanism, a detector body arranged in the connecting cylinder and abutting assemblies arranged at the two ends of the connecting cylinder. The external connection mechanism comprises a wheel body and an external connection sleeve which are arranged on the connecting cylinder, and a rotating assembly arranged on the external connection sleeve. The detection mechanism can be placed at a front position of a worker through the arrangement of the handheld mechanism; the arrangement of the detection mechanism can guide air at different positions on a forward road into the detector main body in the moving process, so that the detection effect is improved, the arrangement of the wheel bodies can effectively improve more loading capacity, the increase of the loading capacity can better improve the storage amount of batteries of the device, and the detection efficiency is improved. And the operation time of the device is prolonged.

The utility model relates to a magnesium nitrate solution impurity continuous filtering device in a concentrated nitric acid production process. The magnesium nitrate solution impurity continuous filtering device comprises a magnesium nitrate heater, a magnesium nitrate intermediate tank, a magnesium nitrate solution ground tank, a magnesium nitrate solution filter, a dilute magnesium nitrate tank and a magnesium nitrate evaporator which are sequentially communicated through pipelines, the inlet end of the magnesium nitrate heater is used for being connected with a concentration rectifying tower and heating and denitrifying a nitric acid-containing magnesium nitrate solution flowing out of the concentration rectifying tower; the magnesium nitrate solution ground tank is connected with a steam condensate pipe and is used for diluting a magnesium nitrate solution in the magnesium nitrate solution ground tank; the magnesium nitrate evaporator is used for being communicated with a concentrated magnesium nitrate tank. Compared with an existing magnesium nitrate solution impurity removal mode, the device does not need to be stopped, and the operation time of a production device is prolonged; meanwhile, the purposes of removing impurities in the magnesium nitrate solution, reducing equipment corrosion, prolonging the service life of equipment, reducing steam consumption and reducing the production cost are achieved.

The invention relates to a paddy field weeding robot path planning optimization method and device, equipment and a medium, and the method comprises the steps: determining the path direction of a shortest barrier-free path based on a preset path direction judgment strategy according to a first barrier-free path set and a corresponding first starting and ending point set, determining a second barrier-free path set, a second starting and ending point set corresponding to the second barrier-free path set, and a starting point and an ending point of each section of obstacle avoidance path; determining a route map according to sampling point data and a communication radius based on a PRM algorithm introduced with an artificial potential field method, and searching a shortest obstacle avoidance path connecting a starting point and an ending point of each section of obstacle avoidance path in the route map by adopting an improved A * graph search algorithm, and sequentially connecting the shortest barrier-free path and the shortest obstacle avoidance path of which the path direction is determined in the second barrier-free path set so as to determine an optimal weeding operation path. According to the invention, effective obstacle avoidance and shortest obstacle avoidance path planning can be realized.

The utility model discloses a wind power generation blade adjusting device which comprises an impeller hub shell and blade pieces installed on the outer wall of the peripheral side of the impeller hub shell in an annular array mode. A motor used for driving the rotary air duct to rotate is arranged on the back of each rotary air duct and located in the corresponding blade piece, and when the rotating speed and the rotating direction of the rotary air duct are adjusted, the power difference between the two sides of the corresponding blade piece can be changed. And the use and adjustment of the wind generating set at different wind speeds can be met, so that the wind power generation efficiency is improved and the operation time is prolonged.

The invention relates to normal-pressure plasma enhanced chemical vapor deposition coating equipment which comprises a control mechanism, a feeding atomization mechanism, a heating mechanism, a plasma gun mechanism and a radio-frequency power source. The inlet end of the gas inlet pipe is communicated with an external compressed process gas supply mechanism, the outlet end of the gas inlet pipe is communicated with an inlet of the heating mechanism, the inlet end of the liquid inlet pipe is communicated with an external liquid medicine supply mechanism, the outlet end of the liquid inlet pipe is communicated with the gas inlet pipe, and the pipe diameter of the gas inlet pipe is larger than that of the liquid inlet pipe. And the radio frequency power supply is electrically connected with the plasma gun mechanism. According to the coating equipment, liquid medicine can be continuously conveyed without an injection pump, the structure is simplified, the coating quality is guaranteed, and meanwhile, the situation that sprayed plasma flow contains liquid medicine in a fog drop state is avoided by atomizing the liquid medicine and arranging a serpentine channel in the heating mechanism. The invention also relates to a coating method.

According to the regional load aggregator-oriented transformer area user flexible load scheduling method provided by the invention, the temperature control load, the electric vehicle, the energy storage equipment and the like are optimally scheduled, so that the balance of a power grid and the maximization of economic benefits are realized. The method comprises the following steps: predicting the load demand of a transformer area user through modeling analysis, and formulating an optimal scheduling strategy in combination with external signals such as real-time electricity price and environment temperature; a home energy efficiency management system (HEMS), a vehicle-to-power grid (V2G) control platform and an intelligent energy management system (EMS) are utilized to dynamically dispatch and control various flexible loads. The implementation result shows that the method effectively reduces the electric charge of the user, improves the revenue of the aggregator, improves the stability of the power grid, and has remarkable practicability and popularization value.

The invention discloses a non-intrusive line tower leakage current monitor based on AI learning, and relates to the technical field of power distribution network line fault positioning, and the monitor comprises an induction coil, an amplification module, an A / D conversion module, a CPUPCA module and a liquid crystal display screen. The induction coil is connected with the amplification module, the amplification module is connected with the A / D conversion module, the A / D conversion module is connected with the CPUPCA module, and the CPUPCA module is connected with the liquid crystal display screen. The system can help an operator to quickly and accurately position a fault point, quickly isolate and remove the fault and recover normal power supply after the fault occurs, greatly improves the power supply reliability, greatly reduces the labor intensity of fault line patrol personnel, improves the working efficiency, retrieves the economic loss, comprehensively improves the operation management level of a distribution network, and is higher in popularization value.

The utility model provides an activated carbon deep purification filtering device which comprises a filtering box and an activated carbon assembly, a water inlet pipe is installed on the upper side surface of the filtering box, a cover plate is fixed to the front side surface of the filtering box through screws, a containing cavity is formed in the filtering box, and an observation opening is formed in the left side surface of the filtering box. An observation opening is formed in the left side surface of the water inlet pipe, an opening cover is clamped on the left side surface of the observation opening, the water inlet pipe is communicated and connected with the interior of the filter box, and a primary filter element and a secondary filter element are mounted in the filter box. According to the water purifier, large suspended solids, particles, silt and other impurities can be removed in advance, the activated carbon assemblies are arranged, the multi-layer activated carbon assemblies can adsorb organic matter, odor, peculiar smell and the like in water as much as possible, water flow is subjected to the adsorption effect of the activated carbon layers, water quality is further purified, more pollutants are removed, and the purification effect is improved.

The invention relates to the field of mobile phones, particularly provides an equipment power consumption control method and system and a storage medium, and aims to solve the problem of unstable equipment operation caused by limitation of the battery discharge capability of equipment under low temperature and low electric quantity. In order to achieve the purpose, the method comprises the steps that the battery temperature and the battery remaining capacity of the equipment are obtained; based on the battery temperature and the battery remaining capacity, determining the battery discharge capacity of the equipment; and performing power consumption control on the equipment based on the battery discharge capability.

The invention relates to the technical field of measuring electrical variables, and specifically discloses a reliability detection method and system for an intelligent grounding wire based on Lora communication, including evaluating the Lora communication between a host end of an intelligent grounding wire and a slave end, judging whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable, evaluating a grounding terminal of an intelligent grounding wire whose Lora communication status between the host end and the slave end is reliable, judging whether the grounding terminal status of the intelligent grounding wire is reliable, and evaluating the working and hanging detection status of a connection terminal of an intelligent grounding wire whose grounding terminal status is reliable, judging whether the status of the intelligent grounding wire is reliable. The invention solves the problem that a traditional detection method relies on a low-precision sensor and that data analysis and processing technology are insufficient, helps to improve the stability and reliability of the entire system, reduce safety hazards caused by communication failures, promptly discover and locate potential failures, ensure that problems are identified and resolved as early as possible, and maintain the normal operation of a grounding system.

The invention discloses a wireless battery management method, system and device based on beam forming, and the method comprises the steps: a BMU module receives the position information transmitted by each CMU module, and divides a preset communication coverage area according to the position information, and the communication coverage area comprises at least one CMU module; generating a directional signal for the communication coverage area, and sending the directional signal to each CMU module in the communication coverage area; and establishing communication with the CMU module according to the directional signal response information fed back by the CMU module. The preset communication coverage area is determined through the BMU module, the BMU module generates the corresponding directional signal according to the communication coverage area, and then the directional signal is directionally sent to the CMU module in the communication coverage area, so that directional signal transmission between the BMU module and the CMU module in the communication coverage area is realized, generation of a communication signal of a non-communication coverage area is avoided, and the communication efficiency is improved. The power consumption of the system is reduced, and the operation time of the system is prolonged.

The utility model relates to a dual high-voltage clamping protection rectification filter circuit for an electric energy meter. The dual high-voltage clamping protection rectification filter circuit comprises three LC filter circuits and clamping high-voltage AC circuits electrically connected with the corresponding LC filter circuits. The clamping high-voltage alternating-current circuit is electrically connected with a rectifier diode; the rectifier diode comprises a forward rectification unit and a reverse rectification unit which are connected in parallel. A filtering common mode unit is electrically connected between the output ends of the three forward rectification units and the output ends of the three reverse rectification units; the filtering common-mode unit comprises an X safety capacitor CN1 and a common-mode inductor LN5 which are electrically connected; and one output end of the filtering common-mode unit is grounded, and the other output end of the filtering common-mode unit is connected with the drain electrode of the MOS tube device QN1 and the RC filtering current-limiting circuit in a branching manner. The device is reasonable in design, compact in structure and convenient to use.

The present invention discloses a method for reducing the synchronization load of an Android activity management service based on escape analysis, and belongs to the technical field of Android systems. The present invention comprises: performing a static analysis based on escape analysis on an AMS source code, extracting object access information in the code; dividing the synchronization blocks into equivalence classes according to the object access information and the synchronization locks of each synchronization block; dividing the synchronization blocks with intersections of access objects into the same equivalence class, and the access object sets of synchronization blocks of different equivalence classes do not intersect each other; according to the equivalence class division result, reallocating the synchronization locks of the synchronization blocks in the code, so that different equivalence classes use different synchronization locks, and then outputting the optimized AMS code. The present invention optimizes the synchronization locks, so that synchronization blocks that were originally not parallel can be executed in parallel, thereby significantly improving the execution efficiency of the system, and can be completed in the static analysis stage of the program before the system is deployed, without increasing the load of the system during operation.

The application relates to a kind of OFDM-based broadband millimeter wave relay system hybrid beamforming design method, comprising: calculating the receiving signal of target node under the condition that each node is all digital processor;The receiving signal is processed using minimum mean square error criterion in target node, and MMSE matrix is calculated;Using the equivalence between maximizing sum rate and minimum weighted mean square error algorithm, the maximum sum rate problem is converted into minimum weighted mean square error problem according to MMSE matrix;Deep unfolding neural network is used to solve the minimum weighted mean square error problem, and all digital processor of each node is obtained;Each node's all digital processor is decomposed based on least square decomposition algorithm, and hybrid beamforming matrix of each node is calculated, the complexity of the algorithm is greatly reduced, and the running time of the system can be effectively improved.

The utility model discloses an anti-corrosion electronic tag, and relates to the technical field of tags, the anti-corrosion electronic tag comprises an outer frame and an isolation plate, the isolation plate is located in the middle of the inner part of the outer frame, the outer frame is made of a metal material, the isolation plate is made of a heat insulation material, and the outer side of the outer frame is provided with a sealed transparent material; according to the anti-corrosion electronic tag, a cavity is formed between the isolation plate and the solar cell panel, the cavity is filled with the packaging adhesive, the main function of the packaging adhesive is to wrap and protect the circuit board in all directions, corrosive substances are effectively isolated from being in contact with parts of the circuit board, and the anti-corrosion electronic tag has the advantages that the anti-corrosion electronic tag is simple in structure and convenient to use, and the service life of the anti-corrosion electronic tag is prolonged. In addition, the heat conduction performance of the packaging adhesive is excellent, heat generated in the working process of the circuit board can be effectively conducted into the outer frame, then the heat dissipation effect of the circuit board is promoted, and stable operation of the device is ensured.

The invention discloses a wind power plant emergency operation and maintenance method and device and a readable storage medium, and the method comprises the steps: obtaining the number of particles in a particle swarm, and setting the number of unmanned ships, the number K of unmanned planes carried by each unmanned ship, and the number of to-be-operated and to-be-maintained points; initializing the position of each particle in a particle swarm by taking the number of the to-be-operated and to-be-maintained points as the particle length; segmenting a position pseudo index and a tool pseudo index according to the position of the particle, and generating an operation and maintenance path corresponding to the current position of the particle according to the position pseudo index and the tool pseudo index; calculating the fitness of particles according to the running speed and running time of the unmanned ship and the unmanned aerial vehicle, obtaining a global optimal particle according to the fitness of the particles, and recording the global optimal particle and a corresponding operation and maintenance path; updating the position of each particle in the particle swarm; outputting the updated global optimal particle and the corresponding operation and maintenance path, and scheduling the unmanned ship and the unmanned aerial vehicle; therefore, the emergency operation and maintenance path planning of the wind power plant is realized, and the path planning time is shortened.

The present invention provides a method and device for switching the working mode of a chip by handshaking software and hardware, the method comprising: receiving configuration information set by firmware, the configuration information comprising the protocol flow of the chip physical layer IP; using digital logic to load and parse the configuration information, controlling the execution state of the state machine based on the configuration information, and switching the working mode of the chip by executing the protocol flow. The technical solution of the present invention reduces the duplication of digital-analog hybrid IP development and adapts to the digital development of different ASICs.

The utility model relates to the technical field of smoke exhaust fans, and discloses a high-heat-resistance and high-stability fire-fighting smoke exhaust fan which comprises a supporting frame, a fan barrel fixedly installed on the upper portion of the supporting frame, a cold water tank fixedly installed on the upper portion of the side of the supporting frame, a semiconductor refrigerator fixedly installed on the outer side of the cold water tank, and a suction pump fixedly installed on the outer side of the cold water tank. A cooling bin and a motor are fixedly mounted on the back face of the mounting frame, a heat conduction plate is arranged on the inner wall of the cooling bin, a plurality of heat conduction bins are fixedly mounted on the inner wall of the heat conduction plate, conduction blocks are slidably mounted on the inner walls of the heat conduction bins, and a heat conduction arc-shaped plate is fixedly mounted at the lower ends of the conduction blocks. The lower surface of the cooling bin communicates with a water pumping pipe, and heat dissipation fins are installed outside the fan barrel. And the motor can be effectively cooled, so that the motor can stably operate for a longer time, the operation time of the smoke exhaust fan at a high temperature is prolonged, and the service life of the smoke exhaust fan is prolonged.

The present invention relates to a turbidity meter, comprising a measuring cavity, a water inlet guide groove and a measuring light source, wherein the water inlet guide groove is fixedly connected to the inner side of the measuring cavity, and the outer upper end of the measuring cavity is fixedly connected to the measuring light source. The present invention overcomes the shortcomings of the prior art, and has the characteristics of being provided with a solenoid valve at the venting port, and the solenoid valve is connected to a time controller in a circuit, and can be controlled in a timed manner by the time controller after being powered on. According to actual operation requirements, within the set time period of the time controller, the time controller can switch the automatic switch on and off, and the automatic switch linkage solenoid valve can realize the regular opening and closing of the pipeline by the rotating rod and the valve within the set time period, so that the venting port can be emptied of the suspended matter on the upper end of the water sample in the measuring cavity through the solenoid valve in a timely manner, so as to avoid the turbidity meter measuring value being lower than the actual turbidity of the water sample, and ensure the measurement effect.

The present invention provides a premixed metal powder heater, which comprises: a shell, a metal powder feed port arranged on the shell, a metal powder discharge port arranged on the shell, a heat transfer oil inlet of a heating plate group arranged on the shell, a heat transfer oil outlet of the heating plate group arranged on the shell, and a heating plate group arranged in the shell; the heating plate group comprises at least one heating plate; at least one heating plate is provided with an oil channel; the oil channel of the heating plate is connected to the heat transfer oil inlet of the heating plate group; the oil channel of the heating plate is connected to the heat transfer oil outlet of the heating plate group. The premixed metal powder heater of the present invention is heated by heat transfer oil, which can avoid the leakage risk of high-power electric heating technology.

The embodiment of the invention provides an image processing method and device based on an index table, and the method comprises the steps: firstly obtaining a to-be-processed image, then querying whether an index sequence number corresponding to a pixel value of the to-be-processed image exists in the index table, and if yes, executing the step 2; and outputting the index value mapped by the index serial number as the image processing result of the to-be-processed image, the index table being constructed based on the input image and the output image processing result of the image processing model, the index table constructed by the embodiment of the invention being capable of accelerating the overall operation time of the image processing model, and improving the image processing efficiency. The model reasoning speed is greatly improved, the requirement for computing power is low, and the cost is reduced.

The utility model relates to the technical field of push rods, and discloses a high-temperature-resistant push rod mechanism which comprises a main body mechanism, a push mechanism is arranged on the left side of the main body mechanism, and a control mechanism is arranged at the bottom of the push mechanism. The driving motor is started to enable the rotating shaft to rotate, the rotating shaft and the connecting plate rotate, when the connecting plate rotates, the fixing plate is driven to reciprocate, the fixing plate is connected with the metal rod, and when the fixing plate reciprocates, the metal rod stretches out and draws back. When the driving motor works for a long time, the surface of the driving motor is hot, so that the surface of the driving motor is sleeved with a heat dissipation cover, the running time of the driving motor is prolonged, the performance of the driving motor is kept, the interior of a connecting plate is hollow, cooling liquid can be poured into the connecting plate by screwing out a pull plug, and the temperature of the connecting plate is reduced; and the rotating shaft connected with the connecting plate is influenced, so that the temperature is reduced, the good performance of the device is kept, and the service time is prolonged.

The invention provides a ground wire real-time monitoring system of a power system, which relates to a data processing technology, and comprises an image recognition module for carrying out image recognition on a field view and determining each transmission area; the positioning determination module is used for determining corresponding transmission and acquisition point locations in the transmission areas and determining point location positioning information corresponding to the transmission and acquisition point locations based on satellite positioning information of a view on the site; the multi-dimensional marking module is used for carrying out multi-dimensional specification marking on each transmission acquisition point position and sending a field view to the auxiliary acquisition end; the state determination module is configured to respond to a configuration completion signal sent by the auxiliary acquisition end, periodically obtain multi-dimensional acquisition signals corresponding to the transmission acquisition point locations, and perform state determination on the transmission acquisition point locations based on the multi-dimensional acquisition signals corresponding to the same transmission acquisition point location, and obtaining an operation state corresponding to each transmission acquisition point location. According to the invention, the monitoring efficiency of the ground wire is at least improved.

The utility model discloses a mechanical sealing mechanism for an inner guide wheel, which is characterized in that the inner guide wheel is arranged on an equipment shaft through a bearing, and the bearing is arranged in a cavity of the inner guide wheel; the mechanical sealing mechanism comprises an outer sealing unit and an inner sealing unit which are installed on an equipment shaft, and the inner sealing unit is installed in an inner guide wheel cavity and located on the inner side of a bearing. The guide wheel sealing device is convenient to install, reliable to use and capable of reducing maintenance frequency and field environmental pollution, prolonging the service life of equipment and guaranteeing smooth production.

The invention discloses a clock crystal oscillator oscillation stop processing method. The method comprises the following steps: periodically detecting whether an external clock crystal oscillator is in an oscillation stop state or not; configuring a high-frequency RC oscillator in the system as a system clock source, and writing a calibration value of the high-frequency RC oscillator; judging whether the system is in a power-on state or not; configuring the value of a system clock frequency division setting register, enabling the system clock to work at a first frequency, taking the first frequency as the working frequency of a function register of a timer in the system, and modifying a clock source of the function register into a system clock source; configuring the value of a system clock frequency division setting register, enabling the system clock to work at a second frequency, taking the second frequency as the working frequency of a function register of a timer in the system, and modifying a clock source of the function register into a system clock source; and the timer in the system carries out timing again and carries out timing accumulation. The technical problem of how to judge whether the external clock crystal oscillator is in the oscillation stop state or not and adjust the clock crystal oscillator in time is solved.