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84results about How to "Solve technical problems with high power consumption" patented technology

Slag cake crusher capable of dynamically adjusting speed and control method thereof

The invention provides a slag cake crusher capable of dynamically adjusting speed and a control method thereof. The slag cake crusher comprises a driving motor, a crushing chamber and a control system, wherein a feeding hole is formed at the upper end of the crushing chamber; a discharging hole is formed at the lower end of the crushing chamber; a crushing roller shaft is arranged inside the crushing chamber; the crushing roller shaft is connected with the driving motor through a coupler; spiral cutter teeth are welded on the surface of the crushing roller shaft; convex teeth are arranged on the inner wall of the crushing chamber; gaps are formed between the convex teeth and spiral cutter teeth; the control system comprises a power supply, a PLC (Programmable Logic Controller) controller, a man-machine interaction device, a frequency changer, a coder mounted on a shaft of the driving motor and a temperature senor mounted on the crushing roller shaft; the PLC controller comprises a speed controller and a temperature correction rotation speed controller. By improving the structure of the slag cake crusher and using a double closed-loop dynamic control adjustment method, the automatic control of crushing process and speed is achieved, the dynamic change of slag cake crushing load is automatically adapted, and the crushing force and crushing efficiency are maximized.
Owner:JIANGSU UNIV

Method and device for controlling power supplying voltage of power consumption device in emitting passage and emitting system

ActiveCN102244500AReduce voltageVoltage real-time controlPower amplifiersControl powerAudio power amplifier
The embodiment of the invention provides a method and device for controlling power supplying voltage of a power consumption device in an emitting passage and an emitting system, relating to the technical field of communication and solving the technical problem that the power consumption of an emitting passage in the prior art is higher. The method for controlling power supplying voltage of the power consumption device in the emitting passage comprises the steps of: sensing the amplitude of the I/O signals to be emitted or sensing the amplitude of the radio frequency signals which are obtained by carrying out digital-to-analog conversion on the I/O signals; and boosting the voltage output to a grid of a radio frequency power amplifier for amplifying the radio frequency signal power when the amplitude is enlarged and reducing the voltage which is output to the radio frequency power amplifier when the amplitude is reduced. The device for controlling the power supplying voltage of the power consumption device in the emitting passage comprises a sensing module and a controlling module. The emitting system comprises the emitting passage and the device for controlling the power supplying voltage of the power consumption device in the emitting passage, disclosed by the invention. The method and device disclosed by the invention are used for reducing power consumption brought about by the emitting passage part of the complete unit.
Owner:北京万海云科技有限公司

Closed-loop control method and device of temperature of atomic gas chamber

The invention provides a closed-loop control method and device of temperature of an atomic gas chamber. The method includes: generating an electric bridge excitation signal by a first DDS (Direct Digital Synthesizer) circuit; outputting an electric bridge output signal by an unbalanced electric bridge, and amplifying the electric bridge output signal; outputting a demodulator chip output signal bya demodulator chip, and filtering the demodulator chip output signal; carrying out sampling on the demodulator chip output signal after filtering by an analog-to-digital converter at a current moment; calculating a resistance value of a thermistor at the current moment and the temperature of the atomic gas chamber at the current moment by an ARM (Advanced RISC Machines) processor; outputting a voltage signal by a digital-to-analog converter, and generating a heating driving signal is by a second DDS circuit; amplifying the heating driving signal by a variable gain amplifier, and controlling aheating piece of the atomic gas chamber to adjust the temperature of the atomic gas chamber in real time; and repeating the step 4 to the step 8 to realize closed-loop control of the temperature of the atomic gas chamber. By applying the technical solution of the invention, the technical problem of high power consumption of temperature control methods of the atomic gas chamber in the prior art issolved.
Owner:BEIJING AUTOMATION CONTROL EQUIP INST

Fresh-air conditioner and control method of fresh-air conditioner

The invention provides a fresh-air conditioner and a control method of the fresh-air conditioner. The fresh-air conditioner comprises a conditioner main body, a fresh-air duct, an air exhaust duct, aheat exchanger core body, a fresh-air heat exchanger and an air exhaust heat exchanger, wherein the fresh-air duct and the air exhaust duct are arranged inside the conditioner main body, the heat exchanger core body is arranged inside the conditioner main body, and the fresh-air duct and air exhaust duct respectively pass through the heat exchanger core body, and change heat through the heat exchanger core body; the fresh-air heat exchanger is arranged on the fresh-air duct and is located at the downstream of the heat exchanger core body on the fresh-air duct; and the air exhaust heat exchanger is arranged on the air exhaust duct and is located at the downstream of the heat exchanger core body on the air exhaust duct. The invention reduces the external energy dissipation of the building, and in a green energy-saving building, can not only reduce the indoor cooling/heat production demands, but also reduce the cost of the air conditioner by reducing the volume of two devices and refrigerant quantity, thus solving the technical problem of high power consumption of the fresh-air conditioner in the prior art.
Owner:GREE ELECTRIC APPLIANCES INC

Display device, display equipment and display method

The invention discloses a display device, display equipment and a display method. The display device is used on the display equipment. The display equipment has M pixel points, wherein the M is an integer larger than or equal to 1. The display device comprises a backlight module used to generate first backlight, a liquid crystal module arranged on the backlight module and a quantum dot module arranged on the liquid crystal module, wherein the wave length of the first backlight is less than a preset value, the liquid crystal module comprises M liquid crystal units, the M liquid crystal units are in one to one correspondence with the M pixel points, a first liquid crystal unit in the M liquid crystal units is used to control a proportion of the first backlight which passes through the first liquid crystal unit to be a first proportion and obtain second backlight, the quantum dot module comprises M quantum dot units, the M quantum dot units are in one to one correspondence with the M liquid crystal units, and a first quantum dot unit in the M quantum dot units, which is corresponding to the first liquid crystal unit, is used to generate a first color corresponding to the first proportion based on a corresponding relation between the proportion and the color after the first quantum dot unit is stimulated by the second backlight.
Owner:LENOVO (BEIJING) CO LTD
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