摘要:
Present invention is to provide a method and apparatus for controlling energy expanding of sensor network nodes, wherein the method comprises steps of: acquiring energy information, said energy information being indicative of an energy status of a node in the network; and adjusting at least one data transmission parameter accordingly based on the energy information. With present invention, on the premise that the communication capacity and power energy of sensor nodes are limited in a wireless sensor network, it is capable of efficiently utilize the network resource, save the power consumption of sensor node, and prolong the whole life of sensor network.
摘要:
A method and apparatus for controlling energy expended by sensor network nodes is disclosed. The method comprises steps of acquiring energy information that is indicative of an energy status of a node in the network and adjusting at least one data transmission parameter according to the energy information. In a wireless network where the communication capacity and power energy of sensor nodes are limited, the invention provides the capability of efficiently utilizing the network resources, conserving power consumption of sensor nodes, and prolonging the life of the sensor network.
摘要:
A coding/decoding method and an apparatus for improving video error concealment are provided, wherein the coding method comprises obtaining the relevant information of a mostly matching area for an area, wherein both the mostly matching area and the area are located in the same picture; and coding the relevant information of the mostly matching area into a coded video stream comprising the area. With the error concealment of the present invention, only several bits are required to be added when coding, whereby the whole picture appears more natural during decoding and error concealment, and the picture quality is also significantly enhanced.
摘要:
A coding and decoding method and device for improving video error concealment is disclosed in the present invention. The coding method includes the steps of: obtaining a macro block smoothness information of a macro block in a video stream, which indicates whether the boundaries of the macro block are smooth or not; and coding the macro block smoothness information into a coded video stream. The decoding method includes the steps of: determining whether the boundaries of a lost macro block are smooth or not according to the macro block smoothness information of the lost macro block in a video stream; smoothing the displacing macro block for the lost macro block if the boundaries are smooth. The smoothed displacing macro block is more similar to the original macro block, thereby the whole image is more natural with a small coding cost but a highly improved image quality; further, the calculation amount thereof is small, and the cost to realize it is relatively low.
摘要:
The present invention provides a method and apparatus for detecting video data errors, said video data including a plurality of successive frame image data, said method comprising the steps of acquiring the processing sequence information of two frame image data in said video data, said two frame image data being immediately adjacent in the processing sequence, one after the other, determining the processing sequence information difference between two frame image data, comparing said information difference with a reference value and judging, based on said comparison result, whether there is a frame image data miss between said two frame image data. The method and apparatus provided by the invention can, not only judge whether there is a frame image data missing between the two immediate adjacent frames, but also determine the amount of the missing frame image data and performs a restoring and correcting process.
摘要:
The present invention discloses a method for generating metadata, said metadata being associated with a content, the method comprising the steps of obtaining the uncompressed digital signal of said content; determining the feature data of said uncompressed digital signal, said feature data being associated with the features that can be physiologically sensed in the analog signal that corresponds to said uncompressed digital signal; and creating metadata that are associated with the physiological emotion according to said feature data. Therefore, a user can directly obtain metadata reflecting the physiological emotion.
摘要:
The present invention discloses a method of correcting a video signal that includes a video sequence parameter. The method comprises the steps of: obtaining a specific number of decoded values of the video sequence parameter; counting the times of occurrence of each different value of the decoded values; determining a correction value from the counting result; and correcting the decoded values of the video sequence parameter on the basis of the correction value. The present invention further discloses a correcting apparatus and a decoding apparatus of a video signal. With the present invention, it is able to find out conveniently a correction value of a video sequence parameter so as to correct the subsequent decoded values.
摘要:
The present invention provides an error correction method and apparatus, and also an optical disc playback method and apparatus. The error correction method in the present invention is used to perform error correction on data read from an optical disc, comprising: obtaining the error detection information of a block corresponding to the read data; determining data error type in a data stream unit derived from the block according the error detection information; according to the data error type and predefined reference error type, judging whether to reserve the data stream unit for optical disc playback. By using the error detection information of the block which is decarded by using the existing technologies, the player can perform further error correction to try to avoid data errors which may produce interruption during optical disc playback.
摘要:
An energy-recovery generation system for a handling and carrying electric vehicle, comprising a hoisting cylinder (9), wherein an output pipeline of the hoisting cylinder (9) is provided with a pressure sensor unit (1) and a directional valve (2); the directional valve (2) is under the control of the pressure sensor unit (1); a first outlet of the directional valve (2) is connected to a tank (5) through a way of a multi-way valve (4) with an operating handle; the pressure oil, flowing out from a second outlet of the directional valve (2), passes through a pump (7) having an oil suction port capable of bearing pressure or a motor, and then passes through the multi-way valve (4), to finally flow back to the tank (5); the pump (7) having an oil suction port capable of bearing pressure or the motor drives an electric motor (16) to output electric energy; an electric energy output end of the electric motor (16) is connected to an energy storage device (20) through a converter (21).
摘要:
An energy-recovery generation system for a handling and carrying electric vehicle, comprising a hoisting cylinder (9), wherein an output pipeline of the hoisting cylinder (9) is provided with a pressure sensor unit (1) and a directional valve (2); the directional valve (2) is under the control of the pressure sensor unit (1); a first outlet of the directional valve (2) is connected to a tank (5) through a way of a multi-way valve (4) with an operating handle; the pressure oil, flowing out from a second outlet of the directional valve (2), passes through a pump (7) having an oil suction port capable of bearing pressure or a motor, and then passes through the multi-way valve (4), to finally flow back to the tank (5); the pump (7) having an oil suction port capable of bearing pressure or the motor drives an electric motor (16) to output electric energy; an electric energy output end of the electric motor (16) is connected to an energy storage device (20) through a converter (21).