30results about How to "Reduce the number of launches" patented technology

The invention provides a signal acquisition method. The method comprises a signal transmission process after obtaining various sampling signal values. The signal transmission process comprises the following steps: selecting an acquired signal value as a first signal value and transmitting the first signal value; then comparing each signal value from a second signal value after the first signal value with a previous signal value, and transmitting the signal value if the difference value between the signal value and the previous signal value exceeds a certain numerical value or a certain ratio.In the method, the difference values between the signal values are compared and judged to determine whether the signal values are transmitted or not, thus saving the power consumption of the transmission link; and the method helps control the sampling frequency in real time, thus reducing unnecessary sampling times and saving the power consumption of the transmitting link. The method merges the real-time sampling and electricity saving.

The present invention provides a resource competition method and a user equipment (UE), and a method and a device for using resource competition, which solve the problem of resource competition. The resource competition method comprises: selecting a sending opportunity frame comprising a monitoring-preempting subframe and a transmission subframe, wherein the monitoring-preempting subframe comprises a plurality of preemption time slots; determining that selected discovery resources are exclusive discovery resources through analysis of the states of different UEs in the plurality of preemption time slots of the monitoring-preempting subframe; and sending a neighbor identity indication code on the exclusive discovery resources through the transmission subframe. The method for using resource competition comprises: receiving a sending opportunity frame sent by a UE; determining an occupancy state or an idle state of the discovery resources according to the sending opportunity frame; and scheduling the idle discovery resources. The technical solution solves the problem that collision frequency is too high in resource competition, so that the transmission times and power consumption of the UE are reduced.

The invention discloses an alarm management method of a vehicle tyre pressure monitoring system, which comprises the following steps of: measuring the pressure, the temperature and the acceleration of a tyre at fixed time through a tyre pressure sensor, comparing the pressure, the temperature and the acceleration with preset standard values and then judging whether conditions of low pressure, high pressure, rapid air leakage and high temperature exist; if judging that a condition needing to give an alarm exists, writing alarm information on a corresponding data mark bit, sending out the alarminformation in a radio frequency mode within setup time and simultaneously counting the emitting times of the alarm information; and after the counted emitting times of the alarm information reach a preset numerical value, stopping emitting the same alarm information and recovering normal timed monitoring and timed information emitting states. The method of the invention can effectively reduce the mutual interference among signals, decrease the electric power consumption of a battery and prolong the service life of the tyre pressure sensor.

The present invention discloses a communication managing and controlling method for a wireless local area network. The present method includes that 1) a network card drive of a blocking device is modified so as to enable the blocking device to send blocking frames at intervals no greater than the short interframe space (SIFS); 2) the blocking device scans the surrounding wireless local area network environment, and obtains MAC addresses of an access point (AP) and a terminal (STA) working in a to-be-blocked channel; 3) the blocking device establishes a channel MAC address list including all MAC addresses of all the access points (Aps) and terminals (STA) to be blocked of the channel regarding each channel; and 4) the blocking device fills the MAC address in the channel MAC address list of the channel into a destination address field of a blocking frame and then sends the blocking frame regarding each channel to be blocked. The communication managing and controlling method greatly increases information security of secret units or regions, and has a small effect on the surrounding electromagnetic environment.

The invention provides a planar ultrasonic imaging processing method and device based on virtual multi-angle composition at a receiving end, and aims to solve the problem that frame frequency and precision of single planar ultrasonic waves cannot meet the demand simultaneously in the prior art. According to the planar ultrasonic imaging processing method, received first echo data is subjected to virtual delaying, second echo data of receiving planes at different angles are obtained, and the second echo data of the receiving plane at each angle is subjected to beam forming according to the delay superposition principle, so that an image of the receiving plane at each angle is obtained; the images of the receiving planes at different angles are superposed, and a final image of the single planar ultrasonic waves is obtained. According to the single planar ultrasonic imaging processing method in the embodiment, single-pass planar wave emitting image quality is improved, planar wave emitting times are reduced, so that imaging frame frequency of the system is improved, and the method is compatible with a conventional method.