36results about How to "Improve power usage efficiency" patented technology

A switching power supply apparatus operates with less power consumption as a whole as a result of reduced power loss suffered while the switching operation of the main switching device is being stopped in burst switching control. Burst switching control is achieved by a signal level checker circuit 15 repeatedly turning on and off a switch circuit 17 provided in the line by way of which a switching controller circuit 19 is supplied with operating power. In burst switching control, when the switching operation of a main switching device 5 is being stopped, the supply of operating power to the switching controller circuit 19 is also stopped. This helps reduce the power loss suffered while the switching operation is being stopped, and thus helps reduce the power consumption of the apparatus as a whole.

The invention discloses a data transmission method, data transmission user equipment and a data transmission system. The data transmission method comprises the following steps that: the user equipment accesses a server by a terminal control protocol (TCP) through a handshaking protocol and sets a TCP data transmission mode or a user datagram protocol (UDP) data transmission mode as a data transmission mode; and then the user equipment and the server transmit data in the specified data transmission mode, wherein during data transmission, the user equipment or the server determines whether to switch the data transmission mode adopted by the user equipment or the server or not according to the quality of the accessing channel.

The invention provides a gear shifting control method and device for a gear box of a loading machine, an electric control system and the loading machine, and relates to the field of engineering machines. The gear shifting control method for the gear box of the loading machine comprises the steps of obtaining an automatic gear shifting signal enabling the loading machine to be automatically switched into a requested gear from a current gear; according to the current gear and the current speed of the loading machine, obtaining the turbine rotating speed of the loading machine; according to the rotating speed of an engine and the turbine rotating speed, obtaining the speed ratio of a torque converter, comparing the speed ratio of the torque converter with a first numerical value interval, and if the speed ratio of the torque converter is higher than the first numerical value interval, carrying out one-gear-down compensation on the requested gear; and if the speed ratio of the torque converter is lower than the first numerical value interval, carrying out one-gear-up compensation on the requested gear. According to the gear shifting control method for the gear box of the loading machine, the gear shifting compensation control is added, and the loading machine works in an efficient zone of the torque converter to the greatest extent; and the power using efficiency is improved and fuel economy is improved while the power performance is ensured.

The invention relates to a gas measuring apparatus, which comprises an infrared methane sensor, an infrared carbon dioxide sensor, an electrochemical oxygen sensor, an electrochemical carbon oxide sensor, a CPU (central processing unit) control circuit, an alarming device, a battery, a voltage stabilizing circuit and an infrared receiving circuit, wherein an electric signal collected by the sensor device is transmitted to the CPU control circuit to be processed, and the alarming device is triggered when the processing result shows the existence of a safety potential danger. The invention also provides a voltage stabilizing circuit and a gas calibrating device. By adopting the technical scheme, the measuring range of the gas can be enlarged; the battery voltage can provide power supply source power for the measuring apparatus in any state that the battery stage is higher than, lower than or equal to the output voltage, even when the storage battery is almost completely discharged, the stable output voltage still can be guaranteed; and the control data is transmitted by utilizing the infrared remote controller to control the calibrating process of the measuring apparatus, and a sealed container which is fulfilled with the toxic gas is unnecessary to open, the contact of toxic gas can be efficiently avoided, and the leakage of the toxic gas can be efficiently prevented.

The present invention relates to wireless communication technology field, especially relates to a net method of TD-SCDMA (time-division synchronous code division multiple access) system multiple frequency dots district. The system includes network and terminal, the network includes a plurality of frequency dots district, service channel of district is built in main frequency dots and/or assist frequency dots, adjacent multiple frequency dots district selects different carrier wave as main frequency dots, main frequency descending emission power of any multiple frequency dots district in this setting is not always smaller than descending emission power of any assist frequency in the multiple frequency dots district. Using the method can reduce effectively mutual interference at district peripheral dedicated channel between districts, at the same time has a strong service sustaining power for large power demand, and descending cover is broad.

The invention provides a machine cabinet power supply system which comprises at least one alternating-current/direct-current conversion module, a power bus, a plurality of direct-current/direct-current conversion modules and a plurality of servers. The alternating-current/direct-current conversion module is used for converting an input alternating current into a direct current with a first voltage. The power bus is connected with the at least one alternating-current/direct-current conversion module and used for collecting, distributing and transmitting the direct current with the first voltage. The direct-current/direct-current conversion modules are connected with the power bus and used for converting the direct current with the first voltage from the power bus into a direct current with a second voltage, wherein the first voltage is larger than the second voltage. Each direct-current/direct-current conversion module supplies power to one server. According to the machine cabinet power supply system, the transmission current and the sectional area of the power bus is reduced, the loss is reduced, the power use efficiency is improved, and heat dissipation of the machine cabinet is facilitated.

A control method of displaying device detects brightness of outside light source by photosensitive unit then regulates display brightness of said display device by adjusting regulation meter as per detected brightness accordingly for decreasing power required by said displaying device and for raising service efficiency of electric power. The display device utilizing said method is also disclosed.

A control system for a vehicle includes: a motor-generator to regenerate an electric power; a secondary battery to be charged with the electric power regenerated by the motor-generator; an electrical load to be activated with an electric power supplied from at least one of the motor-generator and the secondary battery; a power supply device to supply the electrical load with the electric power generated by the motor-generator based on a deceleration power generated by a braking operation of the vehicle; and an electronic control unit to calculate excess power which is electric power exceeding chargeable power with which the secondary battery is chargeable of a required deceleration power required by the braking operation, and to control the power supply device in accordance with a command value for causing the electric power supplied from the power supply device to the electrical load to be less than the excess power.

The invention relates to the field of medical instrument accessories, in particular to an air-liquid pipeline assembly of an early-stage debridement flusher. The assembly comprises a protective sleeve, a liquid obtaining needle, a power pneumatic interface, a special bottle cap and a handheld machine interface, and the protection sleeve and the liquid obtaining needle are hermetically hinged through a ring belt groove and a protruding clamping ring, so that the assembly is not contaminated by bacteria in use. The liquid obtaining needle is provided with an air inlet needle and a liquid outletneedle to complete air pressure and liquid power conversion; a liquid obtaining needle protective plate protects the local clean and aseptic environment of the special bottle cap. A liquid path interface is connected with the handheld machine interface through a blue liquid pipeline, a red liquid pipeline and a colorless liquid pipeline; an air path interface is connected with pneumatic power through the power pneumatic interface to quickly cut off the dynamic air pressure and the local air tightness; a sealing rubber pad of the special bottle cap is provided with a preset puncture point so that the liquid obtaining needle can conveniently puncture the sealing rubber pad and balanced wrapping force can be generated, and then an acceptable airtight state is formed; the air-liquid pipeline assembly can be used for conveniently replacing an associated assembly. Therefore, an operator can conveniently and accurately complete a debridement flushing procedure.

The invention relates to an aging battery reuse method and system, wherein the method includes the steps: configuring or using a plurality of batteries in a first electrical device, and configuring or using the batteries to a battery life time; when at least one aging battery is formed in the batteries, demounting the aging battery from the first electrical device; then configuring and using the aging battery of the first electrical device in a second electrical device; and providing a residual life reuse service of the aging battery by using the second electrical device, or providing a residual life dealing service of the aging battery by using the second electrical device. The consumption cost of using high-premium-rate electrical power can be reduced or the use efficiency of off-peak time electrical power can be improved, and the service life of the aging battery is improved.

The invention provides a frequency converter power unit and a frequency converter. The frequency converter power unit comprises a rectifier, an inverter and an energy storage circuit, wherein the rectifier is used for rectifying an alternating voltage of a first frequency into a direct voltage; the inverter is used for inverting the direct voltage into an alternating voltage generating a second frequency; the energy storage circuit is connected between the rectifier and the inverter; and the energy storage circuit includes an accumulator and a charge and discharge module which charges the accumulator under a first state and discharges from the accumulator under a second state. In embodiments of the invention, when a power grid is in an outage state, under the condition of not depending on other external functions, a motor can still work for a period of time, and electric power usage efficiency is increased.

The invention discloses a Bluetooth charging device and a charging control method. The Bluetooth charging device comprises a body, an interface unit and a battery unit, wherein the interface unit is formed in the outer surface of the body and used for being connected with a Bluetooth device, and the battery unit is fixed inside the body. The battery unit is connected with the interface unit. A control unit and a sleep unit are further fixed in the body and connected with the interface unit. The battery unit is connected with both the control unit and the sleep unit. The control unit compares the detected electric quantity of the Bluetooth device and a preset electric quantity threshold value, and controls the battery unit to charge the Bluetooth device or controls the sleep unit to switch the Bluetooth device to a sleep mode. The Bluetooth charging device can charge the Bluetooth device, and can further convert the mode of charged Bluetooth device into the sleep mode to lower power consumption.

The invention relates to the field of hay mowers and specifically relates to a method and device for charging control of a hay mower. The method comprises the steps that during automatic mowing of thehay mower, a current output current of a storage battery in the hay mower and/or working time of the storage battery are/is detected; a current voltage of the storage battery is detected; according to the current output current and/or working time of the storage battery, a returning voltage can be determined; whether the current voltage is smaller than or equal to the returning voltage is judged;and when the current voltage is smaller than or equal to the returning voltage, the hay mower can be controlled to return to charging. By the method and device provided by the invention, electric quantity use efficiency of the storage battery is increased greatly.

The invention relates to the technical field of power machines, in particular to a piston series-connection double-connecting-rod crank mechanism which comprises a cylinder body, a piston, a crankshaft and a rack and is characterized in that double connecting rods connected in series are hinged between the piston and the crankshaft, the hinged ends of an upper connecting rod and a lower connecting rod are hinged to a sliding block or a swing arm at the same time, and the sliding block is in sliding connection with a guide rail; the swing arm is hinged with the rack; the other end of the lower connecting rod is hinged with the crankshaft handle; the stroke of the piston is more than two times larger than the length of the crankshaft handle, and the difference between the ascending running speed and the descending running speed of the piston is 1.4-3 times. By means of the double connecting rods connected in series, lateral force borne by the piston is reduced, the service life of an engine is prolonged, meanwhile, the up-down operation speed and time of the piston are different, the acting angle of the crankshaft reaches 210-270 degrees, the power use efficiency is higher, and mechanism operation is more stable.

The invention discloses a fire pump skid. The fire pump skid comprises a fire pump, a driving unit and an additional component, wherein the driving unit comprises two output ends; one output end is connected to the fire pump and provides driving force for the fire pump; and the other output end is connected to the additional component and provides driving force for the additional component. According to the scheme, the fire pump, the driving unit and the additional component are subjected to reasonable skid-mounted layout design, so that the space utilization rate is increased, more possibilities are provided for cabin layout of a ship, the length of a pipeline is shortened, the mounting time is saved, and the construction cost is reduced. In addition, the two ends of the driving unit are utilized simultaneously, one end drives the fire pump to serve as a fire water suction device, and the other end drives the additional component, so that the power use efficiency of a diesel engine unit is improved, a motor for driving the additional component does not need to be additionally arranged, and the construction cost is reduced.

The invention discloses the intelligent optimization method of renewable energy. A shell is included. One side bottom end of the shell is provided with an input terminal. The front side bottom end ofthe shell is provided with an output terminal. An inverter and a transformer are installed in the shell. One side of the internal portion of the shell is fixedly provided with a power scheduler. The internal portion of the shell, which is located on the outer side of the input terminal, is provided with a sensor component. The top of the shell is fixedly provided with a control cabinet. The two sides of the control cabinet are inlaid with cooling fans. The internal portion of the control cabinet is fixedly provided with an FPGA controller. The two sides of the internal portion bottom end of the control cabinet are provided with an electric leakage protector and a storage battery group. The two sides of the top of the control cabinet are provided with a buzzer and a wireless communicator. The structure is designed simply and reasonably, operation is convenient, operation and adjusting are convenient too, the method is safe and reliable, a renewable energy optimization effect is good, power conversion efficiency is rapid, usage efficiency is high, a suitable range is wide, and the method can be popularized and promoted.