283results about How to "Reduce power waste" patented technology

An electrical load status detection and control device includes a first power supply circuit loop with a first switch, a second power supply circuit loop with a second switch, a no-load status detection unit connected with the second power supply circuit loop for detecting the current passing through the second power supply circuit loop and thereby generating a current detection signal. A micro-controller connected with a reference current value database, the no-load status detection unit, the first switch and the second switch, which receives the current detection signal from the no-load status detection unit. The micro-controller generates a switching signal to actuate the first switch and the second switch to thereby open the first power supply circuit loop and the second power supply circuit loop when detecting the current passing through the second power supply circuit loop out of the reference current value range of the reference current value database.

A method and apparatus are provided that efficiently perform wireless power charging. A power supply device checks an amount of charging power required by the power receiving device; determines a power level of the charging power that to be supplied over time, based on the amount of the charging power required by the power receiving device; transmits the charging power corresponding to the determined power level to the power receiving device; periodically receives a report message about a charging situation of the power receiving device from the power receiving device; calculates remaining required power, based on the report message received from the power receiving device; adjusts the determined power level depending on the calculated remaining power; and transmits the charging power corresponding to the adjusted power level to the power receiving device.

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a power allocating method. A User Equipment (UE) receives power control indication information from a control node, obtains a power control mode, and / or, uplink transmission power configuration information. The UE allocates power for each uplink carrier, based on the power control mode, and / or, the uplink transmission power configuration information. By applying the present disclosure, power waste generated in the following scene may be reduced. A scheduled uplink signal cannot be transmitted in a corresponding carrier due to a busy channel. Subsequently, uplink scheduling efficiency of the UE may be improved, and the whole network efficiency may also be enhanced.

An electrical load status detection and control device includes a first power supply circuit loop with a first switch, a second power supply circuit loop with a second switch, a no-load status detection unit connected with the second power supply circuit loop for detecting the current passing through the second power supply circuit loop and thereby generating a current detection signal. A micro-controller connected with a reference current value database, the no-load status detection unit, the first switch and the second switch, which receives the current detection signal from the no-load status detection unit. The micro-controller generates a switching signal to actuate the first switch and the second switch to thereby open the first power supply circuit loop and the second power supply circuit loop when detecting the current passing through the second power supply circuit loop out of the reference current value range of the reference current value database.

The present invention discloses an uplink power control method and a network side device to enable users to reduce power loss of wireless terminals to acquire the same transmission rate. In the present invention, a network side selects a MCS for a corresponding wireless terminal according to measured uplink SINR and maximum BLER threshold and notifies the wireless terminal to reduce its uplink transmission power while a difference between the SINR and a SINR needed for the maximum BLER threshold of the MCS. While the network side notifies the MCS selected by the wireless terminal, the network side informs the wireless terminal of reducing its uplink transmission power by dispatching an uplink control command. When the wireless terminal receives one uplink power control command, the wireless terminal reduces its uplink transmission power by one step length.

One embodiment of the present invention provides a system that uses power-line phase-cut signaling to change energy usage for one or more devices that share a common power signal. During operation, the system receives a request to change power usage. In response to the request, the system inserts a phase-cut notch into the common power signal. A device that is located downstream from the inserted phase-cut notch detects this notch in the common power signal, and in response triggers a power-state change. For instance, the device may trigger a reduced-power state when it detects a phase-cut notch.

A method for controlling the charging of segments for an online electric vehicle is described. In some situations, the method comprises: (a) receiving, from segments, information on the speed and position of the vehicle entering the range of the power-supplying device; and (b) controlling the charging / discharging timing of the current segment from which the vehicle is leaving and the next segment into the range of which the vehicle is to enter, in accordance with the information on the speed and position of the vehicle. The charging / discharging response delay characteristics of the segments may be considered.

The present invention relates to a scan method for a touch panel and a touch device. It operates two different Analog-to-Digital Converter calibrations to have different baselines and thresholds corresponding respectively to a cursory scan mode and a fine scan mode. In cursory scan mode, multiple traces are driven simultaneously and the signals from the traces are received simultaneously to enlarge the sensing value so that a touch object with a lower sensing signal is also detected. Further, the cursory scan mode with less electricity cost is used to first determine whether touch objects exists. When the touch objects do exist, the fine scan mode with more electricity cost is then operated. Therefore, the present invention can further reduce the electricity waste.

An induced power system for being connected with and driving loads (300) includes a primary circuit (100) and a secondary circuit (200). The primary circuit (100) is provided with a primary inductor (110) for generating current induced magnetic filed. The secondary circuit (200) is provided with an induce generation portion (210) and a power distribution portion (220). The induce generation portion (210) is provided with a first inductor (211) and a second inductor (212) connected in series with each other and adjacent with the primary inductor (110), for generating induced alter current. The power distribution portion (220) is provided with a first capacitor (221), a second capacitor (222) and a switching device (225), in which the first capacitor (221) is connected with the first inductor (211) in series to generate series resonance, thus to provide a control power supply. The second capacitor (222) is connected with the first, the second inductors (211, 212) and the first capacitor (221) in parallel to generate parallel resonance, thus to provide a load power supply. When the switching device (225) is on, the load power supply is provided to the loads (300).

The invention relates to a method and a system for controlling the long term evolution (LTE) uplink power, comprising the following steps: grouping user equipment (UE) accessed to a cell; controlling the power of the UE in each group to obtain a group of power control commands; sending the power control commands to the UE in the group; and adjusting the power control commands sent to the UE in the group according to the power control commands by the UE. Due to the adoption of the method and the system for controlling the LTE uplink power, the user can obtain the acceptable service demand with the minimum power according to the current wireless environment so that the disturbance can be reduced to the maximum extent and the waste of the power of the UE can be reduced.

A passive optical network system such that the power consumption can be reduced as much as possible according to the end-user traffic. An OLT uses the DBA function thereof and sequentially uses frequencies in ascending order of transmission rate in order to sequentially allocate bands to ONUs in ascending order of the requested bandwidth. At this time, a frequency to be allocated is selected so that the bandwidth allocated to each ONU is narrower than a maximum bandwidth through which transmission using the allocated wavelength is enabled. An OLT uses a grant area to specify the transmission timing of the secondary station and to inform the specified transmission timing to the secondary station. In addition, an area is set for storing information used to inform the secondary station of a new frequency to be used.

A method and transmitter for amplifying at least first and second diversity-encoded signals, where each of the first and second diversity-encoded signals may represent information of a first signal to be transmitted using transmit diversity. Amplification of the first and second diversity-encoded signals may be shared between at least two amplifiers, and amplification for a second signal, to be amplified and transmitted without using transmit diversity, may be shared between the at least two amplifiers.

Provided is a method and a system for controlling engine start of a hybrid vehicle based on acceleration demanded power of a driver. More specifically, a variance of an output signal of an accelerator pedal sensor (APS) senses manipulation of an accelerator pedal reflecting an acceleration demand of a driver. When the variance of the output signal of the accelerator pedal sensor is a positive threshold value, acceleration demanded power corresponding to the output signal of the accelerator pedal sensor is calculated in a section in which the variance is positive and the calculated acceleration demanded power is accumulated. The accumulated acceleration demanded power is then compared with a set power value, and the engine is started to switch from the EV mode to the HEV mode when the accumulated acceleration demanded power is equal to or greater than the set power value.

Various embodiments include a display panel with integrated micro lens array. The display panel typically includes an array of pixel light sources (e.g., LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The array of micro lenses are aligned to the pixel light sources and positioned to reduce the divergence of light produced by the pixel light sources. The display panel may also include an integrated optical spacer to maintain the positioning between the micro lenses and pixel driver circuits.

The invention discloses a ship vibration energy acquisition and intelligent monitoring device based on a frictional nano-generator, which comprises a base, a frictional nano-generator, an integrated circuit and a display screen, and is characterized in that the frictional nano-generator comprises a spring, a silicone model, an upper electrode, a lower electrode and a wire, and has dual functions of performing frictional power generation and converting vibration signals into electric signals. The ship vibration energy acquisition and intelligent monitoring device does not need a battery or an external power supply, and can provide power for sensors thereof continuously. The ship vibration energy acquisition and intelligent monitoring device can operate with a small amount of electric energy, thereby not only reducing resources and energy consumed by manufacturing the battery, but also being capable of reducing the waste of electric power and realizing self power supply. The ship vibration energy acquisition and intelligent monitoring device can calculate the frequency and amplitude of ship vibration according to the output voltage waveform of the generator, and forms comparison with the vibration frequency under a normal operating state of the ship so as to monitor abnormal vibration, thereby facilitating the ship management staff to timely inspect and maintain abnormally vibrating electromechanical equipment of the ship, and realizing visualization of the ship vibration.

The invention discloses a power distribution method for a full-duplex relay network in a nonideal channel state, and belongs to the technical field of wireless communication. The method gives consideration to a safe and effective capacity model in a full-duplex multi-carrier safety system with an intercept unit. A resource distribution task in a safety network of a full-duplex multi-carrier relay is completed through a robust full-duplex relay loop interference channel state information method. Therefore, the method achieves the planning of optimization problems of power limit, affected by the total power and the loop of the full-duplex relay, and safe and effective capacity maximization. The method solves an optimal dual factor through a Lagrange duality theory, so as to achieve the optimal power distribution strategy. The optimal power distribution method enables the full-duplex relay network in the nonideal channel state to meet the requirements of upper users for quality of service (time delay QoS), and also achieves the optimal safety performance and the high-efficiency utilization in a supposed channel state information error range.

The invention relates to the technical field of engines, and discloses an engine cooling system. The engine cooling system comprises a main cooling fan, a main radiator, a controller, a temperature sensor, a secondary cooling fan and a secondary radiator, wherein the main radiator is communicated with a water chamber of an engine; the secondary radiator is communicated with the water chamber of the engine; the secondary cooling fan is arranged on a side face of the secondary radiator; a pipeline between the secondary radiator and the water chamber of the engine is provided with a switching valve; the temperature sensor is used for detecting water outlet temperature of the water chamber of the engine and transmitting a water outlet signal to the controller; the controller receives a water temperature signal and judges whether the water outlet temperature is greater than a preset value; and if the water outlet temperature is greater than the preset value, the controller controls the switching valve to be opened and controls the secondary cooling fan to be in a working state. The heat dissipating capacity of the engine cooling system is matched with that required by the engine.

An electronic camera automatically suspends the power supply when an external storage medium is detached, and automatically resumes the power supply when the external storage medium is attached. This eliminates the necessity of operating a power switch when the external storage medium is detached and attached. The power supply to a memory card interface and a memory card is suspended upon detection of the start of the detachment of the memory card while the main switch is ON. This protects the memory card and data therein, and reduces the waste of power in the camera while the memory card is detached from the camera. The power supply is resumed upon detection of the attachment of the memory card to the camera. If a predetermined period has elapsed since the power supply is suspended while the memory card is not attached from the camera, the main switch is automatically turned off.

Systems for reducing power usage and / or wastage use sensors to gather information about a circuit and its usage. Triggers are identified based on the information from the sensors, and subsequently used to control power delivery by reversibly effectuating energization and deactivation of particular circuits through smart nodes.

A delay device is added to the addressing and refreshing circuitry of a DRAM array including DRAM devices less volatile than conventional DRAM devices and, thus, need not be refreshed as often. The delay device is connected to intercept refresh signals generated by a conventional DRAM refresh controller and initiates a refresh cycle after disregarding a predetermined number of refresh signals generated by the refresh controller whose total duration equals the interval by which the less volatile DRAM devices must be refreshed. The delay device also is adapted to power off circuitry needed to address the DRAM devices when the DRAM devices are not being refreshed or otherwise accessed. Additional circuitry is added to selectively power on only specific addressing devices actually needed to address those certain portions of the array being refreshed at that time.

The present invention provides an electrifying method of thermal inserting-pulling modules in modular devices, as well as a thermal inserting-pulling control circuit. The thermal inserting-pulling control circuit comprises a multilevel thermal inserting-pulling control unit which is used for respectively controlling a plurality of groups of electrical devices of a thermal inserting-pulling module for electrifying, as well as at least one delay circuit which is used to control the electrifying time of at least one thermal inserting-pulling control unit to the electrical devices, so as to electrify a plurality of groups of electrical devices at different time. The embodiment of the present invention realizes the graded electrifying of a plurality of electrical devices of the thermal inserting-pulling module, effectively solves the problem that the impact current is overgreat when the modules of modular devices are thermally inserted or pulled, and reduces the power waste of whole machine power supply of modular devices.

A master station includes an optical transmission interface for transmitting signals to a plurality of slave stations at a first transfer rate or a second transfer rate which is higher than the first one, packet buffers for accumulating the signals addressed to each of the plurality of slave stations, and a control unit for determining transmission timings and transfer rates of the signals on the basis of an amount of the signals accumulated in the packet buffers, transmitting the signals with the determined timings and rates, and notifying each of the slave stations about the determined timings and rates. Each of the slave stations includes an optical reception interface for receiving the signals of the first transfer rate or the second transfer rate, and a control unit for controlling the optical reception interface on the basis of the timings and rates which the slave stations is notified.

The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof. The air conditioner comprises an upper fan assembly and a lower fanassembly, and further comprises an upper air opening corresponding to the upper fan assembly, a lower air opening corresponding to the lower fan assembly, and an air-out channel connected to the upperair opening and the lower air opening. The air conditioner control method comprises the following steps of: selecting, to be specific, selecting a refrigeration mode or a heating mode; and controlling, to be specific, in the refrigeration mode, selecting an upper and lower air-out mode or an upper air-out mode, and controlling the rotating speed of a fan in the upper fan assembly to increase at the base speed, and the rotating speed of a fan in the lower fan assembly to decrease at the base speed, in the heating mode, selecting the upper and lower air-out mode, and controlling the rotating speed of the fan in the lower fan assembly to increase at the base speed. The power of the fans is used reasonably while the comfort level is improved, and the wasting of electricity is reduced.

An encryption processor for encrypting and decrypting data that ensures data security by preventing illegal deciphering or leakage of the data. The encryption processor includes a CPU for running a program, a ROM for storing the program run by the CPU, a RAM used as a work area while the CPU is running the program, an I / O section for sending / receiving data to / from an external device, and an encryption section for decrypting encrypted data and encrypting plain text data.

A voltage regulator and method of using the same are provided that improve wakeup-time and reduce power wastage in switching a device from standby or sleep-mode to active mode. Generally, the voltage regulator includes: (i) a standby regulator having a high-impedance node (NGATE); (ii) an active regulator having a high-impedance node (dominant pole node); (iii) a compensation capacitor; and (iv) a switching circuit to couple the compensation capacitor to the high-impedance node (NGATE) of the standby regulator while the device is in sleep-mode to pre-charge the compensation capacitor, and to couple the compensation capacitor to the high-impedance node (dominant pole node) of the active regulator while the device is in active or non-sleep-mode. Other embodiments are also disclosed.

A receiver device in accordance with the present invention (for example, wireless LAN device) includes: a radio frequency signal processor section converting an incoming radio frequency signal to a lower frequency; an RSSI circuit (reception strength sensor section) sensing the signal strength of the radio frequency signal; an intermediate frequency signal processor section converting a signal from the radio frequency signal processor section to an even lower frequency; a digital demodulator section (demodulator section) demodulating a signal from the intermediate frequency signal processor section; and a power control circuit controlling power supply to circuits in the intermediate frequency signal processor section which makes up part of the analog section (AGC circuit, IF mixer circuit, LPF circuit, and amplifier circuit) according to a result of sensing by the RSSI circuit. The structure provides a power saving receiver device.