41results about How to "Reduce ineffective power consumption" patented technology

The invention discloses a narrow pulse-based relaying method for a cooperative ultra wideband communication system, which belongs to the field of wireless communication. The system comprises a single information source node, a multiple relay node and a single target node. In the method, a channel state is characterized by distance information, and a control frame is required to be transmitted for one time only to determine distances among the nodes and a channel scene under the condition that communication nodes are still, so that overhead for transmitting control information is saved, and the throughput of the system is improved. Instantaneous information is not required to be exchanged, so ineffective power consumption for idle listening and control message overhead can be saved; therefore, node power consumption is lowered, and working time is prolonged. By the method, an adaptive relay protocol converting method is introduced to the relay node, the bit error rate of the cooperative ultra wideband system is reduced to the maximum, and the performance of the system is improved.

A method and device for cell reselection, the method comprising: during the process of cell reselection, determining that a second cell is prohibited from accessing; determining the highest-ranked cell according to cell reselection criteria; when the highest-ranked cell changes, and When the first condition is met, the access prohibition on at least one cell is lifted, the at least one cell is a cell that is prohibited from access during the cell reselection process, and the at least one cell includes the second cell and / or a cell of the same frequency as the second cell. Through the first condition, when a cell is prohibited from accessing, the terminal device can reduce the number of checks on the cell, thereby reducing the ineffective power consumption of the terminal device, and also making the check of the cell by the terminal device more efficient. more effective.

The invention discloses a resistance furnace for brazing a zinc electrolysis anode electric conducting cross beam and a brazing method. The resistance furnace comprises a U-shaped base horizontally arranged, wherein the base has a furnace bottom; a rail is arranged on the bottom surface of the base, and is provided with an advancing furnace car capable of performing a reciprocating motion; a furnace body is arranged on the furnace bottom; a cavity is formed in the furnace body; electric furnace wires are arranged on the side wall of the cavity; a front furnace gate is formed in the side wall of the furnace body; the advancing furnace car is pushed into the base in use; and the working surface of the advancing furnace car and the cavity of the furnace body are formed to an empty cavity. A copper plate and lead plates with two specifications are prepared; one lead plate, the copper plate and the other one lead plate are laminated on the working surface of the advancing furnace car in sequence; brazing filler metals are laid in gaps among the plates; a pressure plate is covered; the advancing furnace car enters the base; after the segmented temperature rise and insulation is performed, the plates are discharged from the furnace for air cooling; the lead plates are welded; and the copper plate is sealed in the lead plates. The brazing method applies a brazing technology to weld heterogeneous metals, and solves the surface-surface metallurgic bonding problem of copper / lead heterogeneous metals.

The invention discloses an electric vehicle thermal management system, belonging to the technical field of electric vehicles, comprising an air conditioning circuit and a motor cooling circuit, the motor cooling circuit is used for cooling the motor and power components, and also includes a battery cooling circuit used for cooling a power battery pack, The battery cooling circuit is connected to the air conditioning circuit, and the air conditioning circuit and the motor cooling circuit are independent of each other. The electric vehicle thermal management system provided by the invention improves the thermal management system of the existing electric vehicle, sets the battery cooling circuit and the air conditioning circuit into an integrated structure, and saves the water circulation structure for cooling the power battery pack. The components of the battery cooling circuit are greatly reduced, the overall weight of the electric vehicle is effectively reduced, and it is beneficial to optimize the electric vehicle and reduce the ineffective power consumption when the electric vehicle is running.

For multi-way power chip, the method detects its output state. According to output state of multi-way power chip, makes following operation: when the output state of multi-way power chip shows an un-recovering failure, making relevant powering off operation by controlling the state of enabling signal in power chip. In the procedure of powering off, the powering off operation can be made for all power chips in single board, or only be made for the power chip relating to failure; it can also be made by selecting the reset signal sent out from collection and reset module or by detecting signal from CPU, and based on the frequency of reset and detecting signal from CPU implementing relevant powering off operation.

The invention provides a charging method of an asymmetric hybrid power supply device for an extended-range small electric car and belongs to the field of electric car equipment. The charging method uses a battery pack, a power generation device and a load, wherein the power generation device is connected with the battery pack, and the battery pack and the power generation device are simultaneously connected with the load. The charging method is characterized in that a control device which is composed of a traveling and alarm display device, a switch knob and a controller and used for monitoring and controlling working states of the battery pack and the power generation device is arranged, the traveling and alarm display device is simultaneously connected with the switch knob and the controller, the switch knob is connected with the power generation device, and the controller is connected with the battery pack. The charging method of the asymmetric hybrid power supply device for the extended-range electric car is simple in structure, reliable in performance and capable of achieving large-current rapid charging and discharging. In normal traveling of the extended-range small electric car, an engine can supply electricity to and charge the battery pack when electricity of the battery pack is not enough. By means of the charging method, people can select charging modes.

A display apparatus includes a plurality of luminance modulation elements each modulated in luminance by a voltage of a positive polarity applied thereto, each of the luminance modulation elements being not modulated in luminance by a voltage of an opposite polarity applied thereto; a plurality of first lines electrically coupled to first electrodes of the plurality of luminance modulation elements; a plurality of second lines electrically coupled to second electrodes of the plurality of luminance modulation elements, the plurality of second lines intersecting the plurality of first lines; a first drive unit coupled to the plurality of first lines outputting scanning pulses; and a second driver unit coupled to the plurality of second lines. The first drive unit sets the first lines in a nonselection state to a high impedance state having a higher impedance as compared with the first lines in a selection state.

A network fault recovery method based on an authorization server and an operator system. When a fault occurs in a voice service network, the voice service network terminal monitors the recovery situation of the voice service network in real time; when the voice service network returns to normal, the voice service network The terminal sends a notification message to the authorization server to inform the authorization server that the voice service network is back to normal, and the terminal device on the affected network segment needs to be restored; the authorization server initiates a push message to the push server of the terminal device, so that the push The server sends a voice service re-registration message to the terminal equipment of the corresponding affected network, and the voice service re-registration message will cause the received terminal equipment to re-initiate a registration message to the voice service network, thereby restoring the voice service.

The present invention provides an air conditioning system, including an indoor terminal and an outdoor terminal. The indoor terminal is provided with an indoor-end heat exchanger, and the outdoor terminal is provided with an outdoor-end heat exchanger. The refrigerant circulation is connected, and the indoor end heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger, and a refrigerant branch circuit is arranged between the first indoor heat exchanger and the second indoor heat exchanger, and the refrigerant branch circuit Including the first branch and the second branch arranged in parallel, a bypass valve is set on the first branch, a first throttling mechanism is set on the second branch, the outdoor end heat exchanger is connected to the second indoor heat exchanger, and the outdoor A second throttling mechanism is arranged between the end heat exchanger and the second indoor heat exchanger. Also disclosed is an indoor terminal of an air conditioner. The present invention can improve the air flow resistance and temperature distribution characteristics in the room to the greatest extent through the double improvement of the refrigerant circulation pipeline and the drainage port, and improve the user's comfort.