46results about How to "Increase data transfer volume" patented technology

The invention relates to a topology control method for wireless sensor network based on uneven cluster, belong to sensor technical field, comprising: during the topology generating stage, introducing an uneven minimum mean square subtraction clustering mechanism on a finished cluster in order to reduce energy consumption of in-cluster node; using a strategy based on cluster head energy consumption for setting cluster head changing time, in order to equalize energy consumption on each cluster head node in the network; establishing a cluster head-cluster head energy sensing route, in order to avoid remote wireless transmission; during topology maintenance stage, using a cluster head selection scheme based on node surplus energy and in-cluster node distribution, and using the same strategy to set cluster changing time. With the realization of the method, it can reduce total network energy consumption and equalize energy consumption on each node, in order to prolong cooperative working time of most nodes in the network.

The embodiment of the invention discloses a data distribution method and device, a mobile terminal and a storage medium The method comprises the following steps: determining a data packet distributionratio between a first WiFi channel and a second WiFi channel in a double WiFi mode based on at least one of an application type distribution strategy, a data packet type distribution strategy, a linkquality distribution strategy and an access point AP type distribution strategy; Wherein the first WiFi channel comprises a data channel connected with the first WiFi module, and the second WiFi channel comprises a data channel connected with the second WiFi module; And distributing the data packets needing to be transmitted in the first WiFi channel and the second WiFi channel according to the data packet distribution proportion for transmission. According to the embodiment of the invention, the data transmission quantity of the WiFi network can be improved.

The invention provides an input data calculation method, a calculation engine and a storage medium. The multi-party computing method comprises the following steps: executing a computing task by utilizing a computing engine cooperatively computed by four computing nodes, and acquiring a multi-party computing instruction corresponding to the computing task and acquiring a private data set by the computing engine; wherein each private data set is obtained by executing a random decentralized processing mode required by multi-party calculation on the basis of a calculation engine; according to a multi-party calculation instruction, performing local calculation on the acquired private data set by each calculation node, and performing interaction on intermediate data generated by the local calculation to obtain a calculation result held by each calculation node; wherein the calculation results held by part of the calculation nodes selected from the four calculation nodes are used for generating a processing result; wherein the processing result is a processing result of processing the input data by the computing task. According to the method, the data transmission quantity of the four computing nodes for multi-party computing is effectively improved, and the computing complexity is reduced.

The invention relates to a multi-machine synchronous communication system and a multi-machine synchronous communication method, and belongs to the technical field of communications. A plurality of SS chip selection lines with single function in an existing synchronous communication system bus is cancelled. A new synchronous communication system bus is achieved by using at least one data transmitting line and a plurality of data receiving lines. A chip selection signal and a control signal are transmitted via the same data transmitting line. The bus manner is high in line use ratio, high in transmission rate and large in data throughout. Because a real-time signal and a non-real-time signal are separately transmitted, the system and the method of the invention are very suitable for being applied to a collection control system.

A method for transmitting data of system on chip includes setting at least one data register with countermark in access controller of direct-storage at system on chip, filling data of source unit and state position of data register countermark into said data register by source stator, fetching data in said data register and transmitting fetched data to destination device by destination state when state position corresponding to destination stator is on fetch-able state. The access controller of direct-storage at system on chip is also disclosed.

The present invention provides application system log information transmission method and system. Said application system includes background manage module and said background manage module management controlled foreground processing module; said foreground processing module transmitting application system generated log information to background manage module. Said method includes A, foreground processing to proceed cache processing to log information; B, background manage module transmitting log calling command to foreground processing module; C, foreground processing module according to said log calling command transmitting log information to background manage module. The present invention can avoid communication blocking between before and foreground and background module due to a lot of log information transmission, at the same time capable of greatly raising data transmission quantity between foreground processing module and background manage module.

The invention provides a system and method for monitoring agricultural intensive production. The system comprises an information acquisition and processing system arranged in the production field, wherein the information acquisition and processing system is connected with a cloud computing center through a transmission network. The method includes the implementation steps that an ARM development board is used for controlling a control node or extracting video characteristic values of video information of a video acquisition device and transmitting the video characteristic values to the cloud computing center, and after video images are analyzed by the cloud computing center, the ARM development board is controlled to complete agricultural adjustment. Compared with the prior art, the system and method for monitoring agricultural intensive production have the advantages that the agricultural video images are analyzed through the computer vision technology, and the production can be automatically adjusted and controlled according to animal and plant growth models; through image processing based on the embedded development board, the characteristics of video acquired in the agricultural production field are extracted, and the problems of network congestion and large consumption caused by a large data size of large-scale video transmission are solved.

The present invention provides an optical communication device. The device comprises a circuit board, a first optical coupling module, a light deflection module and a second optical coupling module. The circuit board is provided with a plurality of light emission elements capable of emitting different colors. The first optical coupling module includes a plurality of first optical coupling lenses arranged in order and being in one-to-one correspondence with each light emission element. The light deflection module includes a plurality of light deflection portions arranged in order, and each light deflection portion corresponds to one light emission element; each first deflection portion in the deflection portions includes a first reflection surface, and the other deflections in the deflection portions include color separation surfaces; the first reflection surfaces reflect optical signals of the first optical coupling lens corresponding to the first reflection surface, and each color separation surface reflects the light of the first optical coupling lens corresponding to the color separation surface and transmits the optical signals being incident from one light deflection portion; and the second optical coupling module includes a second optical coupling lens and fibers, and the second optical coupling lens is configured to perform coupling of the optical signals from the light deflection module and enter the fibers.

A combined electronic meter panel for car is composed of panel and electronic circuits which include main controller chip, shift register, CAN transceiver, memory chip, LCD, step motors, and controller area network and its bus. Its method for processing information includes such steps as self-testing the contents in memory, receiving the bus message, converting the bus signals to the differential signals of main controller, and storing and analyzing the signals to generate relative signals for controlling the display units.

An image processor, which requires a transfer rate lower than the conventional rate, for transmitting pixel data between a DDR-DRAM and a memory, and is configured of: a decoded chrominance pixel output unit which writes pixel data into a DDR-DRAM per p×q pixel unit or per p×q pixel units, each pixel unit being made up of p lines of pixels aligned in a vertical direction and q rows of pixels aligned in a horizontal direction; and a reference chrominance pixel input unit which reads out the pixel data of the pixels from the DDR-DRAM per p×q pixel unit or p×q pixel units, in which the decoded chrominance pixel output unit has an interleaving unit that interleaves q rows of p×q pixels to be written into the DDR-DRAM, so as to generate a pixel data sequence in which the pixel data of the pixels located in q rows is multiplexed and placed in a line.

The invention discloses a lightweight certificateless industrial Internet of Things access control method and system. According to the method, a local central server responsible for authorization carries out identity authentication on two parties according to an OAuth thought; different from ACE-OAuth, traditional (such as certificate-based) communication key negotiation needs to be carried out before authentication. According to the method, a local server is used as a trusted third party; two-way authentication between a user and a resource server is realized by using challenge response basedon a public key, a token and a password; communication key negotiation is integrated into an authentication process; the resource server does not need to distribute, receive and verify certificates while the security is ensured; the number of interactive rounds in the authentication process can be effectively reduced, then the communication data transmission amount and the key negotiation calculation consumption including CPU occupation, disk occupation, memory occupation and the like are effectively reduced, and the method is more dominant in safety and practicability and is more suitable for resource-limited environments such as the industrial Internet of Things.

The invention discloses a power cable with a high signal to noise ratio. The power cable comprises three main conducting lines and at least one auxiliary conducting line. The axes in the axial direction of the three main conducting lines are arranged in a triangular shape. At least a part of the auxiliary conducting line is located in a gap space among the main conducting lines. The peripheries of the main conducting lines and the auxiliary conducting lines are filled with insulation materials and covered with the insulation materials into a whole. The peripheries of the insulation materials are provided with a corrugated aluminum sheath. The periphery of each corrugated aluminum sheath is provided with an armor layer formed by two layers of armor electric wires in a winding mode and the armor electric wires of the two armor layers are wound in different directions. The periphery of each armor layer is covered with a protective sleeve. Each main conducting line comprises a core line conductor and a shielding layer covering the core line conductor and each auxiliary conducting line comprises a plurality of densely-arranged core line conductors and a shielding layer covering the core line conductors. The diameter of each core line conductor of each auxiliary conducting line is smaller than that of the core line conductor of each main conducting line and the diameter of each auxiliary conducting line is smaller than that of each main conducting line. One main conducting line serves as a signal transmission line. The power cable with the high signal noise ratio is simple in structure and high in anti-jamming capacity.

The invention relates to electronic equipment and a display signal transmission system, method and device. The electronic equipment comprises: a screen module; and the plurality of close-range transmission chips that have the same data transmission protocol, and each close-range transmission chip is used for transmitting a display signal, so that the screen modules of the plurality of electronic devices which are close to each other are displayed cooperatively.