103 results about "Energy conservation measure" patented technology

If the energy service enterprise is responsible for paying costs for applying energy-saving measures to the object facilities, measures the energy consumption after taking the energy-saving measures, calculates the amount of curtailed energy cost by comparing the measured value with the energy consumption before taking the energy-saving measures previously stored in the database, and receives at least a part of the curtailed amount, the customer is not required to plan equipment investment in energy-saving measures and collection thereof. Introduction of the energy-saving measures is thus made easier.

An Energy and Cost Savings Calculation System is provided that automates the determination of energy and cost savings due to energy conservation measures. The system provides Multi-Variant, Non-Linear (MVNL) load forecasting techniques, energy and cost savings calculations, and Weather Ranking. The load forecasting technique may accept numerous external parameters as input. The technique may use multiple Baselines. It may also use multiple Basic Reference Periods to reduce the load forecasting error. The load forecasting technique may utilize external parameters that are updated on a daily basis, such as dry bulb temperature, dew point temperature, solar condition, and interval meter data. The technique may use Baseline Extensions to perform forecasts and Reference Period Modifications to enhance accuracy. The system may calculate energy and cost savings using Complex Rates and time-of-use (TOU) energy data. The system may rank a plurality of sources providing weather data to identify the most accurate weather data.

The invention provides an energy consumption integrated control system and a method, which is used for energy conservation and measurement control in occasions such as a base station, a motor room, an office building and the like. The method is implemented as follows: collecting energy consumption subentry measurement data; collecting multiple environment parameters relevant to energy consumption equipment; collecting and storing the collected energy consumption subentry measurement data and the collected relevant multiple environment parameters; receiving, outputting and displaying energy conservation data of the energy consumption equipment obtained by comparing the energy consumption subentry measurement data in real time and receiving a control strategy obtained by analyzing and comparing the relevant multiple environment parameters; and sending a control command based on the control strategy to control the relevant energy consumption equipment to regulate relevant parameters so as to realize the aim of energy conservation. The energy consumption integrated control system comprises an intelligent ammeter, multiple sensors, a data collector, an analyzer, a controller, a controlled device and a display. By collecting environment parameters, analyzing the existing energy consumption systems and energy conservation effects brought by various energy conservation measures and equipment in real time, the energy conservation input-output ratio can be reflected clearly; and the energy conservation measures are regulated based on environment changes, thus realizing intelligent interaction of energy conservation equipment.

The invention discloses an air-cooling direct-current frequency-conversion magnetic levitation nature cold source water chilling unit. The water chilling unit comprises a magnetic levitation compressor, an air-cooling condenser, a throttle valve and an evaporator, wherein the outlet of the magnetic levitation compressor is successively connected with the air-cooling condenser, the throttle valve and the evaporator through a pipeline, and a steam outlet of the evaporator is communicated with an air suction port of the magnetic levitation compressor; the outlet of the air-cooling condenser is provided with a branch pipe communicated with a motor cooling inlet of the magnetic levitation compressor, and a nature cold source circulating water system comprises two branch pipe pipelines with valves; and the inlets of the two branch pipe pipelines are connected with a water returning pipeline, the outlets of the two branch pipe pipelines are communicated with a water inlet of the evaporator so as to form circulation, and one of the two branch pipe pipelines is provided with a heat exchange coil. The air-cooling direct-current frequency-conversion magnetic levitation nature cold source water chilling unit provided by the invention has the beneficial effects that the magnetic levitation compressor is used to avoid, a water return problem; an efficient flooded evaporator is utilized and a direct current frequency conversion technology and a nature cold source utilization technology are integrated, thus providing an omnibearing, low-cost, safe and reliable energy conservation measures for the full-year refrigeration field.

A computer-based system, computer-implemented method, and computer program product facilitate determining energy cost savings in an energy-consuming facility, such as a commercial building, using an artificial intelligence model, for example a neural network model, that projects or estimates the amount of energy that would have been consumed by the facility but for the implementation of energy efficiency or conservation measures. Energy savings are represented by the difference between the estimate of energy that would have been consumed but for the measures and the actual amount of energy consumed by the facility under actual conditions during a time interval after the measures have been implemented.

The invention relates to an intelligent housing system based on intelligent sockets. The intelligent housing system is characterized in that with layered structural design and modularization design as the principle, the intelligent housing system is divided into a monitoring layer, an organizing and managing layer, an agent layer and a functional layer. The functional layer is formed by multiple functional peripherals and takes charge in achieving concrete functions of the intelligent housing system; the agent layer is formed by the multiple intelligent sockets and takes charge in controlling and managing the functional peripherals; the organizing and managing layer is formed by a home gateway and takes charge in organizing and managing all the functional sockets and the functional peripherals; the monitoring layer is formed by monitoring terminals and provides a user-friendly manipulating interface for controlling and managing the functional peripherals. A diversified energy-saving means is introduced to improve energy-saving efficiency; the layered structural design is adopted, so that the intelligent housing system is easy to standardize; a user can perform personalized installation according to needs by the adoption of the modularization design; plug and play of the functional peripherals under the zero-configuration condition are achieved, and the user can add, or delete or upgrade the functional peripherals at any time.

The invention discloses a quantizing system and a computing method of carbon dioxide emission reduction quantity based on a building. A carbon dioxide emission reduction mode which can be implemented in the operating period of the building is divided into eight modes, namely lighting energy-saving carbon emission reduction, building energy-saving measure carbon emission reduction, solar hot water carbon emission reduction, energy-saving electric equipment carbon emission reduction, low-carbon traffic carbon emission reduction, waste disposal carbon emission reduction, water saving carbon emission reduction and renewable energy source carbon emission reduction. By directly quantizing the carbon emission reduction of the eight carbon dioxide emission reduction modes, the carbon dioxide emission reduction total quantity in the operating period of the building and the carbon dioxide emission reduction quantity of unit area are obtained finally. For the situation that the conventional building carbon emission reduction is subjected to qualitative analysis and not subjected to quantitative computation, the quantitativity of a low-carbon technology is realized by unifiedly converting different design effects of the low-carbon technology to the carbon dioxide emission reduction quantity of the building, so the popularization of a low-carbon technical system in reforming of a new building and the existing building is more facilitated.

The present invention relates to a method for evaluating electricity utilization energy efficiency of a power consumer, which comprises: a step 1 of constructing a power consumer electricity utilization energy efficiency evaluation system, and setting a plurality of corresponding secondary indexes for each primary index; a step 2 of calculating weights of indexes on each grade; a step 3 of carrying out grading corresponding to the indexes on each grade according to a set threshold so as to establish an evaluation space, and constructing an unascertained measurement function of all the secondary indexes; a step 4 of calculating an unascertained measurement value of the secondary indexes a step 5 of calculating a measurement value of the primary indexes by combining the weights of the secondary indexes, and calculating a comprehensive measurement value of the integral system by further combining the weights of the primary indexes; and a step 6 of giving a value to each grade according to the established evaluation space so as to calculate a score of each primary index. The present invention provides one perfect evaluation method which can be used for carrying out evaluation on the indexes on each grade. Furthermore, implementation of energy-saving measures on the aspects of technologies, management and the like is comprehensively considered and subjective weights are amended hereby so as to enable evaluation to be more comprehensive and reasonable.

The invention discloses an energy-saving metering method for a communication base station, and the method provided by the invention is mainly used for calculating the energy consumption based on the data acquisition part of an energy-consumption metering system. The method comprises the following steps: (1) solving the relationship of the energy efficiency ratio of energy consumption equipment, such as air conditions, indoor temperature and outdoor temperature, and obtaining a correlative expression; (2) calculating the reference power consumption amount of the energy consumption equipment: calculating the reference power consumption of the energy consumption equipment by utilizing the actual measurement data within the operation cycle when an energy-saving measure is adopted; and (3) calculating the power saving amount of the energy-saving measure: calculating the power saving amount by utilizing the actual measurement data within the operation cycle when the energy-saving measure is adopted. The method provided by the invention is objective, simple, accurate and precise to meter, the information is shared by means of the Internet of Things, query is convenient, and an important basis is provided for selecting energy-saving equipment, formulating an energy-saving scheme and calculating energy-saving benefits.

A gas turbine engine fuel supply system includes a primary gear pump and a secondary gear pump. The primary gear pump always actively delivers fuel to the downstream fuel system, and is sized to supply 100% of the burn flow needed at a select low demand condition. The secondary gear pump is sized to make up the remainder of the flow at high demand conditions, and actively delivers fuel to the downstream fuel system only during those conditions. To supply discharge fuel pressures in excess of gear pump capability, a supercharger pump is disposed upstream of the primary and secondary gear pumps. The supercharger pump is preferably activated only during high demand conditions as an additional energy conservation measure.

The invention provides a mobile hot pot waking-up handling method and a device using the mobile hot pot waking-up handling method. The method includes: storing cell phone numbers for waking up mobile hot pots; waking up the mobile hot pots through triggering the cell phone numbers. The mobile hot pot waking-up handling method and the device using the mobile hot pot waking-up handling method solve the problems that time consumption of using mobile hot pots is too much and user experience is bad under the energy-saving measures in the relevant technology, and are easy to operate, and capable of effectively avoiding failure of waking up, greatly reducing time consumption of waking up and effectively improving effect of user experience under the condition of saving power as much as possible.

The invention provides an energy conservation diagnosing method and an energy conservationdiagnosing system for a boiler heating system. The energy conservation diagnosing method for the boiler heating system comprises the following steps of collecting data related with the energy saving of the boiler heating system, and establishing a corresponding database; processing the data related with the energy saving of the boiler heating system, and calculating the energy utilization efficiency of the system and each equipment; establishing an evaluation value standard base, and diagnosing the energy consumption factors and energy consumption events of low-efficiency equipment; establishing an energy consumption factor base for the low-efficiency equipment, and according to a fault tree principle, utilizing the energy consumption factor base for the low-efficiency equipment to diagnose the event corresponding to the energy consumption factors; establishing an energy consumption event base, and according to the fault tree principle or a human and machine conversation function, utilizing the energy consumption event base to diagnose an energy-saving improvement strategy of the energy consumption event. The energy conservation diagnosing method and the energy conservation diagnosing system for the boiler heating system have the advantages that according to each factor with influence on the energy efficiency of the boiler, the problems of the function are diagnosed, and the energy efficiency improvement method can be found.

The invention discloses a method for assessing the cleanliness of an intelligent power distribution network. The method comprises the steps that firstly, an energy-saving index is calculated, so that fossil energy consumption reduced through an adopted energy-saving measure of the intelligent power distribution network is assessed; according to the calculated energy-saving index, a gas emission reduction index is calculated; an electromagnetic pollution index and a noise pollution index are then calculated. According to the method for assessing the cleanliness of the intelligent power distribution network, the assessment indexes of electromagnetic pollution and noise pollution are added in the intelligent power distribution network cleanliness assessment process, so that intelligent power distribution network cleanliness assessment is more scientific and comprehensive. The cleanliness of the intelligent power distribution network is correctly assessed through the method and the method is beneficial to the improvement of the cleanliness of the intelligent power distribution network through measures.

The invention discloses an automatic blue-green algae finishing boat, which mainly comprises a suction head A, an algae-water separation device B and a drive device C. The suction head A is provided with a buoy, a water pump and a prolate nozzle; the algae-water separation device B is provided with a filtering net, a net frame, an eccentric shaft and a bearing; and the drive device C is provided with a motor (or small internal-combustion engine), a transmission wheel belt, a motor boat and a water outlet pipe groove; the algae-rich water flowing out of the prolate nozzle 6 rushes into the filtering net 8, and under the effect of vibration force, the water can flow through the net holes and falls into the water outlet pipe groove 3, while the algae is blocked by the net holes and thrown toward the direction of vibration resultant force to fall into the boat; and a baffle 20 can block sporadic algae. As the eccentricity of the eccentric shaft is relatively small and the speed can be regulated according to the strength of the algae-rich water, the energy-save measures such as mechanical kinetics are comprehensively used, the power consumption during the use is relatively low, and the problem of blocking the net holes during suction is solved; moreover, automatic and fast algae-water separation is realized during the algae collection, the product is small, the efficiency is high, the operation is simple, the labor is saved and the cost is greatly reduced, and therefore the automatic blue-green algae finishing boat is blue-green algae finishing equipment with reasonable and scientific comprehensive performance.

The invention relates to the technical field of vehicle energy consumption detecting, and in particular to a passenger car energy consumption detecting method, which comprises the following step: measuring fuel consumption consumed by a passenger car within a unit time or a unit running distance in a static state or a running state under manually simulated irradiation or solar irradiation so as to obtain energy consumption of the passenger car. Compared with the prior art, in the passenger car energy consumption detecting method provided by the invention, the fuel consumption consumed by the passenger car within the unit time or the unit running distance in the static state or the running state under an actual working state of the vehicle is measured, thus the detecting result is very accurate, and the objectivity and the reliability for energy consumption detection of the vehicle are enhanced; and in addition, the detecting method provided by the invention is simple and convenient and can be widely applied to detecting the energy consumption of various kinds of passenger cars before / after adopting an energy-saving measure and an energy-saving rate after the energy-saving measure is adopted.

The invention provides an indirect measurement method of the building electric consumption, wherein an operating parameter set is created for each electrical equipment, the uncertainty is introduced, the evaluation function is further adopted to optimize and distribute the obtained total energy consumption; and the energy consumption value of each electrical equipment is similar to the actual instrument measurement value, and the indirect measurement of electric consumption can be realized. The problem of the prior art that some equipments are difficult to measure through indirect measurementis solved, the indirect measurement of the energy consumption of the equipment is realized, the measurement devices are reduced; the use condition of energy consumption is convenient to analyze, the actual results of each energy saving method, management method and technical means can be conveniently evaluated and checked according to the measured energy consumption data; and the healthy development of the public building energy conservation field can be ensured, and the operation energy consumption of the public building can be really reduced.

The invention discloses a control chart-based tramcar system energy consumption analysis method. The method comprises the following steps of: firstly analyzing components of tramcar system energy consumption; acquiring energy consumption data; analyzing and judging abnormal condition of the acquired energy consumption data through an X-Rs control chart; for the abnormal energy consumption data, analyzing reasons and getting rid of abnormal data until the X-Rs control chart analyzes that the data is normal; and carrying out grey relational analysis on the normal energy consumption data. The invention discloses a plurality of data mining methods; by monitoring and analyzing fluctuation conditions of tramcar system energy consumption data through a control chart theory, abnormal energy consumption data can be rapidly recognized; and by carrying out correlation analysis on energy consumption influence factors through a grey relational algorithm, a relationship can be established among theenergy consumption data, the data can be deeply analyzed, the energy consumption abnormal data can be recognized, the energy consumption influence factors can be analyzed and the future energy consumption conditions can be predicted, thereby providing reference for energy conservation measures of tramcar systems.

The invention provides an energy consumption modeling and evaluation method for an energy consumption system. The method comprises the following steps of: constructing an energy consumption model forthe energy consumption system; analyzing the energy consumption model to obtain a unit product comprehensive energy consumption model; and evaluating the process and equipment energy consumption of the energy consumption system by utilizing the unit product comprehensive energy consumption model to obtain an evaluation result, and generating improvement suggestions for the process and equipment ofthe energy consumption system according to the evaluation result. According to the energy consumption modeling and evaluation method of the invention, the energy consumption model is analyzed, so that the unit product comprehensive energy consumption model is obtained; and evaluation is performed; the process and equipment of the energy consumption system are improved according to the evaluationresult; process optimization and energy-saving space evaluation can be guided; on the result of the prediction of the energy consumption model, the process can be optimized, guidance can be provided,and corresponding energy-saving measures can be formulated; and therefore, energy consumption can be decreased, and an energy-saving goal can be realized.

An apparatus for managing energy resources includes: a collection unit for collecting energy consumptions and resource information of a plurality of energy consumption devices; an integrated resource relation map management unit for generating and managing an integrated resource relation map which indicates correlations between energy resources one another consumed by the energy consumption devices by using the energy consumptions and the resource information; and an energy management unit for generating energy-saving measures based on the integrated resource relation map.

The invention relates to the field of power equipment energy consumption monitoring and energy saving assessment, in particular to a quantitative analysis method for influence of electric energy quality on comprehensive energy consumption of a power transmission line. The quantitative analysis method mainly comprises the steps of: (1) acquiring electric energy quality data parameters of the power transmission line from an electric energy quality online monitoring device; (2) carrying out quantitative analysis calculation according to energy consumption of the power transmission line caused by harmonic waves, energy consumption of the power transmission line caused by voltage deviation and energy consumption of the power transmission line caused by three-phase unbalance degree; (3) and endowing different weights for calculating energy consumption of the power transmission line based on results of quantitative analysis calculation of the energy consumption of the power transmission line caused by harmonic waves, energy consumption of the power transmission line caused by voltage deviation and energy consumption of the power transmission line caused by three-phase unbalance degree. The quantitative analysis method offers practical and effective help in quantitative analysis of energy consumption distribution characteristics of the power transmission line, studying and developing power transmission line energy-saving measures and the like, and provides effective data support for analyzing energy consumption of the power transmission line.

The invention discloses a process for manufacturing methane. The process includes virgin gas purification operation, refrigerating compression operation, liquefaction operation and LNG (liquefied natural gas) storage operation. The virgin gas purification operation is used for carrying out purification operation on virgin gas, and purified gas is delivered to a liquefaction unit to be subjected to liquefaction operation; the refrigerating compression operation is used for carrying out pressurization and cooling operation on nitrogen, and expanded and refrigerated low-temperature gas is delivered to the liquefaction unit; the liquefaction operation is used for receiving the virgin gas from the purification operation and the low-temperature gas from the compression operation; the virgin gas is cooled by the low-temperature gas under the control and then is subjected to separation operation, and separated LNG is delivered to be subjected to the storage operation. The process has the advantages that by the aid of a method for recycling and manufacturing the liquefied natural gas in tail gas, energy conservation measures of enterprises can be effectively upgraded, resource consumption of the enterprises can be reduced, and an effect of comprehensively utilizing energy of the enterprises can be enhanced.

The invention provides an electricity stealing behavior identification method and device based on non-invasion load monitoring. By monitoring the current and voltage of electrical appliances, the kindand operation condition of a single load under the condition that the electrical appliances are simultaneously started in an internal load cluster can be obtained through analysis, wherein the operation condition comprises specific electricity consumption and starting and closing time records of the electrical appliances in different time starting periods. According to the method, by using parameter curves and power steady-state change, power transient-state change and power steady-state fluctuation characteristics of the electrical appliances, starting and closing time of the electrical appliances is decomposed from the total current and total voltage, electrical energy metering is conducted, and an obtained result is compared with an electric meter result for judging whether or not electricity stealing occurs. Through the above design, an effective and convenient mode is provided, the electricity stealing behavior is monitored and identified, an effective energy-saving measure is taken, so that the effective electricity utilization rate is maximized, the unnecessary loss and the illegal electricity stealing behavior are reduced, and collected electricity utilization data can provide data support for monitoring and development of future power.

The invention discloses an RHEL server adjusting and optimizing method facing low delay application, which comprises the following steps: preparing a server wherein a memory of the server requests that at one DIMM memory bank is configured for each channel; mounting an operation system RHEL on the server; BIOS (basic input / output system) adjusting: in a CPU (central processing unit) Turbo manner, improving a processor main frequency and if shake delay occurs, disabling the Turbo manner; closing various energy saving measures. According to the method, by altering starting configuration in the system, the system works at a high performance manner, the performance of network communication among the systems is effectively improved, network performance is improved transaction delay is shortened and a low delay requirement of a user is met.

The present invention relates to a waste heat recovery system which utilizes waste heat discharged from a volatile organic compound (VOC) treatment apparatus to realize green and energy saving proposes. An exhaust gas type absorption chiller heater produces cold water or hot water utilizing heat energy of exhaust gas discharged from a VOC treatment apparatus which executes combustion and component decomposition at a high temperature of VOC emitted from a VOC emitting apparatus in operation. Using the cold water or hot water to an air-conditioning apparatus of a factory or a cooler of the VOC emitting apparatus achieves environmental friendliness and energy conservation measures. Since clean exhaust gas discharged from the VOC treatment apparatus is guided into the exhaust gas type absorption chiller heater, durability of the exhaust gas type absorption chiller heater can be maintained.

The invention provides a dynamic energy-saving method and system of an intelligent terminal. The dynamic energy-saving method comprises the steps of recording, in which application information of the intelligent terminal is recorded, wherein the application information comprises a sub-module state of the intelligent terminal and an application state of each application; processing, in which each state and each measure are defined with an evaluation function, real-time evaluation is performed on a current state and an energy-saving measure by the evaluation function, and a long-term running average performance evaluation index is set by the evaluation function, wherein the evaluation function comprises system power consumption and user application feeling score; estimation, in which the gradient information of the long-term running average performance evaluation index is estimated; and updating, in which a power supply strategy parameter is dynamically adjusted by the gradient information to achieve dynamic management on a power supply. The dynamic energy-saving method has the beneficial effects that real-time adaptive adjustment of a power supply management strategy of the intelligent terminal based on a usage habit of a user is achieved, and individual dynamic power management of the intelligent terminal is finally achieved.

The invention discloses a distribution network power supply capacity evaluation method, and relates to the field of power supply monitoring and evaluation. The distribution network power supply capacity evaluation method comprises the steps of selecting a plurality of power supply capacity basic indexes, wherein the power supply capacity basic indexes are used for measuring the power supply capacity of a power grid; setting a power supply capacity basic index weight which is used for reflecting the relative importance degree of the power supply capacity basic indexes in distribution network power supply capacity evaluation; determining a distribution network power supply capacity evaluation criterion, and judging whether the power supply capacity basic indexes meet the distribution networkpower supply capacity evaluation criterion or not. The distribution network power supply capacity evaluation method provided by the invention not only can perform assessment on operating conditions of a distribution network, but also can find out weak links in the operation of the power grid and formulate loss reducing and energy saving measures, thereby providing a reliable and detailed theoretical basis for distribution network planning and transformation, and having important theoretical and realistic significance for improving economic and social benefits of electric power enterprises.

An energy consumption analysis method for user power data of an intelligent energy consumption system includes the steps of data integration, energy consumption data analysis, electricity statistical calculation, electric energy quality evaluation and the like. The energy consumption analysis method has the advantages that efficient and effective interactive service is provided for users, interaction between a power grid and the users is enhanced, service content is enriched, and the service quality is improved; systematic and integrated energy consumption analysis service is provided, and is of a great guiding significance on improving the level of operation and management on the power grid; an evaluation system and method for reliability of a power distribution network are provided, and a whole set of technical scheme is provided for developing reliability evaluation analysis and planning on a large scale; energy efficiency abnormities can be found in time, and the shortcomings in the operating process of the power grid are found conveniently, and are regulated conveniently in time; the satisfaction rate of the users is increased comprehensively, and the enterprise image and social brand value of power enterprises are improved; the specific subentry energy efficiency condition can be predicted for certain areas, and energy conservation measures are adopted, so that energy conservation and environment protection benefits and direct economic benefits are obtained.

The invention relates to a method for analyzing the energy saving ratio evaluating cogeneration unit economy. The method comprises the steps that the concept of the energy saving ratio is defined, the energy saving ratio is a specific value between the primary energy amount consumed by divided heat and power generation and the primary energy amount consumed by combined heat and power generation when heat energy and electric energy with the same amount and quality are provided; the computational formula of the energy saving ratio is derived; according to the method for calculating the energy saving ratio, the economic analysis of cogeneration units is completed. According to the method, the concept of the energy saving ratio is introduced for the first time, and the comparison of mean level of the primary energy consumed under the combined generation mode and the divided generation mode of the local area is reflected when different types of units produce the same electric quantity and heat quantity under different production modes. Through the method, different types, different capacities and different running modes of the cogeneration units are established on the same benchmark platform for comparison, so that the running economic conditions of the cogeneration units are evaluated more accurately and objectively, and effective reference is provided for carrying out energy-saving supervision on thermoelectric units and putting energy-saving measures into practice.

The invention discloses an energy-saving control method and system for a scientific and technological building with constant temperature, humidity and oxygen content. The energy-saving control method and system are used for an intelligent main engine in the scientific and technological building with constant temperature, humidity and oxygen content. The control method comprises the following steps: starting a leaving mode when detecting a leaving mode starting command; determining preset marks of electric appliances required to be powered continuously and preset constant temperature, humidity and oxygen content parameters under the leaving mode; stopping power supply of electric appliances except for the electric appliances corresponding to the marks of the electric appliances required to be powered continuously in all the electric appliances of the scientific and technological building with constant temperature, humidity and oxygen content; and carrying out corresponding operation on an air conditioner system for guaranteeing constant temperature, humidity and oxygen content on the basis of the constant temperature, humidity and oxygen content parameters. Thus, by the technical scheme provided by the invention, problems that an energy saving measure is not taken in a scientific and technological building with constant temperature, humidity and oxygen content in the prior art and a large number of energy is wasted are solved.