5results about How to "Reduce output power consumption" patented technology

This invention provides an output impedance calculation device, which includes: a control unit, an adjustment unit, a LORA transmitting unit, a first impedance calculation unit, a second impedance calculation unit, a matching unit, and a transmitting antenna. The control unit is used to transmit wireless signals; the LORA transmitting unit is used to convert wireless signals into LORA signals; the first impedance calculation unit is used to calculate the input impedance based on the LORA signals; the second impedance calculation unit is used to calculate the output impedance based on the LORA signals; the control unit is used to calculate the reflection coefficient based on the input and output impedances, and to calculate the standing wave ratio based on the transmission coefficient; the adjustment unit is used to adjust the impedance in the circuit based on the standing wave ratio and the reflection coefficient, thereby achieving impedance matching and balance between the input and output terminals of the line, improving the output quality of radio signals, reducing the overall output power consumption, and reducing harmonic interference.

The present invention relates to a single-photon detector chip, which is used to cooperate with a multi-pulse laser to realize the detection of a single photon. The single-photon detector chip includes a single-photon detection unit array composed of a plurality of single-photon detection units and a bias module. The single-photon detection unit array and the bias module are integrated in a single chip. The bias module is connected to the single-photon detection unit array. The single-photon detection unit is provided with a primary screening circuit and a secondary screening circuit. The input end of the secondary screening circuit is connected to the output end of the primary screening circuit. The multi-pulse laser emits a multi-pulse laser pulse train. The primary screening circuit performs a primary comparison screening on the pulses received by multiple devices. The secondary screening circuit uses a delay circuit to perform multi-channel delay on the pulses output by the primary screening circuit, and performs a secondary comparison screening on the multi-channel delayed pulses to extract effective pulses. Compared with the prior art, the present invention has the advantages of high-performance detection capability, low output power consumption, and high working frame rate.

The invention discloses a rotating cylinder for centering and clamping a workpiece, and relates to the technical field of rotating cylinders. The device comprises an output shaft, the output shaft extends out of a shell, the surface of the output shaft is rotationally connected with the inner side face of the shell, a rotating assembly is fixedly connected with the output shaft, air cylinder assemblies are symmetrically arranged on the two sides of the rotating assembly, and an air pump assembly is arranged on the side, away from the output shaft, of the rotating assembly and fixedly connected to the top of a bottom plate. The two ends of the air pump assembly communicate with the two air cylinder assemblies correspondingly, when the output shaft is driven to rotate in the designated direction, the air inlet end and the exhaust end of the air pump assembly drive the two air cylinder assemblies correspondingly, the two air cylinder assemblies drive the rotating assembly to rotate in the same direction, double power is provided, and output energy consumption is reduced; compressed air used by the air pump assembly circulates in the air pump assembly and the two air cylinder assemblies all the time, blockage caused by air sucked into the external environment is avoided, and the failure rate is reduced.

The invention discloses a variable-static-pressure variable-air-volume energy-saving ventilation system. Comprising a ventilation fan, a PLC control box, a first air volume sensor, a second air volume sensor, a third air volume sensor, a fourth air volume sensor, a static pressure sensor, a first electric switching value air valve, a second electric switching value air valve, a third electric switching value air valve, a fourth electric switching value air valve, a fifth electric switching value air valve, a sixth electric switching value air valve and a seventh electric switching value air valve. The set static pressure value of the fan can be adaptively adjusted according to the air pressure value actually required by the ventilation system under different air volume scenes, the additional output energy consumption of the fan caused by constant static pressure control is reduced, and the energy utilization rate of the ventilation system is improved.

The invention discloses a frequency division hybrid multiple access cellular access network planning method, which comprises the following steps of: (1) constructing a hybrid multiple access model for a wireless communication system comprising a base station configured with M antennas and two users configured with single antennas; (2) taking system energy consumption minimization as a target, and constructing a downlink optimization transmission model under a multi-constraint condition; (3) solving a multi-target energy minimization problem by adopting a continuous resource allocation interactive iteration method; (4) accessing according to the obtained optimal power distribution solution; according to the method, the advantages of the orthogonal and non-orthogonal multiple access methods are utilized, and the interference can be reduced and the coverage range can be expanded under the condition that the throughput is improved by sharing the resource elements.