58results about How to "Accurate Power Consumption" patented technology

The invention discloses an electricity consumption intelligent prediction system and method, wherein the system comprises an intelligent electricity consumption terminal (1) as well as an electric energy collecting module (2) used for managing real-time data collection, a local storage management module (3), a predication point prediction value analyzing and calculating module (4) and a GPRS (general packet radio service) communication control module (5) which are respectively connected with the intelligent electricity consumption terminal (1), wherein the GPRS communication control module (5) is in charge of communication transmission control; and a core prediction processing algorithm of the predication point prediction value analyzing and calculating module (4) adopts a BP (back propogation) neural network. According to the invention, users can be informed of the electricity consumption situation in advance, and effective electricity consumption optimization suggests are provided for the users by combining with the electricity consumption optimization algorithm, the electricity consumption habits of users are improved, unnecessary electricity expenditure of electric appliances of the users is avoided, and electricity expense is saved for the users economically; and the power grid fluctuation caused by electricity consumption in peak time for the users can also be lowered, thus a power grid is more stable, more stable electricity power conveying is provided, the electricity consumption quality of residents is improved, and the production of enterprise electricity power users of production, manufacturing and the like operates stably.

The invention relates to an auxiliary electric heating device used for a vehicle and an auxiliary electric heating method for a vehicle, which comprises a switch part that comprises one or a plurality of switch units and is used for opening and closing a battery voltage by carrying out a switch operation according to a PWM signal; a heater part that comprises one or a plurality of heater units which is connected with the switch units; a current detecting part that detects the current flowing through the heater part; a control part that compares the voltage information of the battery voltage being received with a reference voltage, wherein, if the voltage information is lower than the reference voltage, heating power proportionate to the battery voltage is set as target power, whereas the voltage information is higher than the reference voltage, and preset maximum heating power is set as the target power so as to generate the PWM signal with a PWM duty cycle relative to the set target power and to impose to the switch unit. According to the detecting current of the current detecting part, consumed power actually being consumed is calculated, and the PWM duty cycle of the PWM signalis regulated according to the calculated consumed power and the target power.

Path computation involves determining (120, 930) an aggregate cost for a portion of the path, based at least on the power consumption attributable to use of interfaces along that portion, comparing (130, 930) the portion of the first possible path with a different portion corresponding to a different possible path for the traffic request, based at least on their respective aggregate costs, and selecting (140, 930) which portion to use for the traffic request based on the comparison. Having path selection influenced by the power consumption values, can lead to lower overall consumption in operation than relying only on optimizing nodes individually without regard to how the nodes are used. Path selection can take into account indications of which parts are in a power down mode, and can involve powering up such parts if needed.

The present invention provides a power supply apparatus including a system linkage inverter. The power supply apparatus has a simple facility structure and is capable of accurately supplying a dummy load with excessive electric power that changes from time to time. The power supply apparatus has a system linkage inverter (13) for inversely transforming DC electric power into AC electric power and supplying the AC electric power to a load (17) connected to a system power supply (20), a dummy load (21) connected parallel to the load (17) through a power device (22), a circuit (28) for detecting electric power flowing from the load to the system power in every constant time, a calculating unit (29) for accumulating the detected electric power, and a control unit (30) for turning on and off the power device for the dummy load based on a state value of an electric power flow calculated by the calculating unit.

The embodiment of the invention discloses an electricity quantity distributing method of a frequency conversion multi-connected central air-conditioning machine set for accurately calculating external shared inner electricity quantity shared to indoor machines at a start-up state by an outdoor machine and actual electricity using quantity of the indoor machines. The method of the embodiment of the invention comprises the following steps of: acquiring electricity meter number within the time delta T, wherein the delta T is greater than 0; calculating the theory consumed electricity quantity of each indoor machine within the time delta T under a working state, and the total theory consumed electricity quantity of all indoor machines within the time delta T; calculating the external shared inner electricity quantity of each indoor machine at the start-up state by the outdoor machine within the time delta T according to the electricity meter number, the theory consumed electricity quantity and the total theory consumed electricity quantity; and calculating other shared electricity quantities and the actual electricity using quantity of the indoor machines.

A method of efficient pocket detection is proposed. A wireless device determines whether it is in a transition state by using a plurality of low power-consuming sensors. The wireless device powers on a high power-consuming sensor if the device is in the transition state, or otherwise keeps the high power-consuming sensor off if the device is not in the transition state. The wireless device detects a current pocket mode of the device using the high power-consuming sensor if the device is in the transition state, or otherwise keeps a previous pocket mode if the device is not in the transition state.

The invention provides a refrigerator with an inverter and a power consumption calculation method thereof and a power consumption calculation display system. The refrigerator with the inverter comprises an inverter compressor, a plurality of other electric parts, a main control board and an inverter control board. The power consumption calculation method of the refrigerator with the inverter comprises the steps of A, acquiring working current and working voltage of the inverter compressor from the inverter control board at the preset sampling time intervals within the statistical time quantum; B, acquiring the instant power of the inverter compressor at the sampling time point according to the acquired working current and working voltage; C, calculating the power consumption quantity of the inverter compressor within the statistical time quantum according to each instant power. According to the method, the working current and the working voltage of the inverter compressor are acquired from the inverter control board of the refrigerator with the inverter so as to obtain the power consumption quantity of the inverter compressor; extra sensor is saved; the cost is low; the calculation is accurate.

The novel architecture for digital signal processing systems, comprising a number of blocks with means for power measurement is disclosed. The energy of execution of the software on the said system is evaluated as integral of execution power over time. The method of energy profiling of software is disclosed that reveals in which tasks of the software, and in which blocks of the hardware and what amount of energy is spent in the execution. The novel energy optimization methods in software development, compilation, debugging, profiling, optimization, execution, updating and hardware development are disclosed.

The invention discloses a method and system for monitoring the power consumption of a server component. The method comprises steps of determining an input current of the server component according toa current flowing through a power resistor of a server, and enabling the input current to be a voltage signal; an ADC voltage division circuit being used for collecting the input voltage of the servercomponent at the server component end; and calculating the power consumption of the server component according to the product of the input current and the input voltage. The system comprises an E-Fuse chip, an ADC module and a BMC, wherein a current pin of the E-Fuse chip is connected with the ADC module, the ADC module is in communication connection with the BMC through an I2C bus, and the ADC module is further connected with a server component end. According to the method, accuracy of the input voltage can be improved, so monitoring precision of component power consumption is effectively improved.

The invention discloses a power tester for an electric device, comprising a voltage transformer, a current transformer, an A/D (Analog-to-Digital) conversion module, a parameter input unit, a theoretical working current conversion module, a theoretical working voltage conversion module, a current average processing module, a voltage average processing module, a timing circuit, a statistic time clearing preset key, a display unit and a controller, wherein the A/D conversion module is respectively connected with the current transformer and the voltage transformer; the timing circuit is used for counting the actual working time of a tested electric device; and the controller is used for calculating the electric power and electric consumption of the tested electric device according to average processing results of the current average processing module and the voltage average processing module by combining working time mounted by the timing circuit. The power tester is reasonable in design, convenient to install and arrange, simple and convenient in use and operation, high in intelligent degree, good in using effect and capable of effectively solving various practical problems such as lower detection precision, not high intelligent degree, incapability of directly inquiring electric consumption and the like existing in the traditional electric power testing device.

The present invention relates to an automatic power consumption regulation device of plasma display screen. Said device includes main controller, waveform generator, plasma display screen, video processor and external memory. Besides, said invention also provides its regulation method.