119results about How to "Guaranteed transmission speed" patented technology

The invention provides a method and system for detecting traffic accidents. The method comprises the steps: real-timely acquiring state information of vehicles and transmitting vehicle identification information and acquired state information to a traffic information centre; and the traffic information centre confirms whether traffic accidents happen or confirms the type of the happened traffic accidents according to the received vehicle identification information and state information. By adopting the invention, the required acquired and transmitted data information is relatively simple and the requirement to wireless transmission is relatively low, so that the data transmission real-timeliness and the transmission speed can be protected well; moreover, the installation of other information acquisition and transmission systems on the vehicles is not needed, so that the tedious installation process is avoided and the installation cost is reduced.

A base station of a radio communication system emits a radio wave having the same frequency by time division toward a plurality of specific areas from a plurality of antenna elements by using a multiple-beam antenna to form a plurality of spot beams, and transmits broadcast information through a plurality of beacon channels. Upon reception of the broadcast information, a terminal that exists in any one of the plurality of specific areas selects an optimum beacon channel, and transmits a communication establishment request and a bandwidth request to the base station through a request channel corresponding to information for identifying the antenna element, which is included in the broadcast information received through the selected optimum beacon channel. Upon reception of the requests, the base station schedules, when a channel is to be allocated, a channel allocation time including downlink and uplink data bandwidths and the like.

The invention relates to a multi-channel flash memory controller, which solves the defect of slow data read-write speed of a flash memory data in the prior art. The controller comprises an IDE interface module, a microprocessor and a flash memory management module which are connected with one another through two-port caches, wherein the flash memory management module comprises a flash memory interface command resolving unit, an inner management unit, a data interface management unit, a channel arbitration unit, a channel cache and a flash memory sequence unit; the data interface management unit, the channel arbitration unit and the flash memory sequence unit are sequentially connected; the data interface management unit and the channel arbitration unit are connected with the flash memory interface command resolving unit through the inner management unit; and a data transmission channel is independent of a command transmission channel. The multi-channel flash memory controller has the advantages of fast flash memory read-write speed, high data read-write reliability, high error correcting capacity, and long flash memory service life.

The invention discloses large screen IP (Internet Protocol) video stream access equipment which comprises an IP video access module, an IP video acquiring and decoding module and an image splicing and displaying module, wherein the IP video access module is used for accessing video streams from various IP video sources and transmitting the video streams to the IP video acquiring and decoding module; the IP video acquiring and decoding module is used for decoding various IP video streams from the IP video access module and transmitting decoded digital signals to the image splicing and displaying module; and the image splicing and displaying module is used for carrying out image splicing on the digital signals from the IP video acquiring and decoding module and displaying spliced images on a large screen. In addition, the invention also discloses an implementation method of the equipment. The large screen system of the invention can be used for directly reading the video streams from equipment such as an IP camera, a media server, a network video cassette recorder, a network video encoder, and the like and has the advantages of simple structure, stability and reliability.

The invention provides a method for self-adaptation multi-network-card packet capturing. The method includes initializing network cards and distributing sharing caches for the network cards; determining an upper limit of a free queue of each network card; obtaining quantity of network data packets of each network card and determining dynamic adjusting parameters according to the quantity of the network data packets of each network; distributing the sharing caches occupied by each network card and use rate of the free queue according to the dynamic adjusting parameters; enabling the sharing caches to read and store data packet data of each network card simultaneously; and enabling a protocol stack to read the data packet data in the sharing caches. The invention further provides a device for the self-adaptation multi-network-card packet capturing, which comprises an initializing unit, a free queue determining unit, a sharing cache monitoring unit, a first data reading unit and a second data reading unit. The method and the device for the self-adaptation multi-network-card packet capturing improve capacity of a single device for processing network data, and simultaneously a self-adaptation packet capturing mode guarantees speed of data transmission.

The invention provides a trusted improvement method of a router. Mainly targeting on the trust value carried by a ToS (type of service) field (IPv4) or a TC (traffic class) field (IPv6) in the header of an IP (Internet protocol) packet and the source of the IP packet, the method can carry out the dynamic adjustment on the trust value under the guidance of the trust strategy and lead the router to carry out the related operations of packet classification, enqueueing management, queue scheduling and packet loss regulation according to the trust value, so as to give the first priority for the guarantee of the transmission reliability and rate of more trusted IP pockets in the network and actively delay or drop the packets with lower trust value to confront the potential unsafe factors, such as network congestion and attack, thus making the entire network more trusted and safer.

The invention relates to a laser radar data read-write control system and chip based on a robot. The laser radar data read-write control system comprises a CPU, an AHB bus, a pre-configurator, an AHBinterface controller, an AHB read-write control layer, an address sorting module, a map matching processing module and an on-chip map storage medium. The AHB interface controller is connected with theon-chip map storage medium, and is connected with the on-chip map storage medium through the address sorting module; the AHB read-write control layer is respectively connected with the AHB interfacecontroller and the map matching processing module; wherein the CPU is simultaneously connected with the map matching processing module and a corresponding signal end of the on-chip map storage medium,and the pre-configurator is electrically connected with the CPU; the problem that raster map data cannot be transmitted suddenly is solved, the matching operation speed of the laser radar data and the reference raster data is increased, and the processing scene of a large amount of the laser radar data is met.

The invention is applicable to the technical field of a mobile terminal and provides a method and a device for controlling the data transmission mode of the mobile terminal. The method comprises the steps of obtaining the first data volume of the mobile terminal, passing through a WLAN (wireless local area network) interface in the current certain time range when detecting that the mobile terminal enters a screen off state; and controlling the data transmission mode of the mobile terminal according to the obtained first data volume. Through the method and the device, the data transmission mode of the mobile terminal can be intelligently regulated, and accordingly, the transmission speed of the WLAN and the battery life of the mobile terminal are both guaranteed.

The invention discloses a paper money identification system, which comprises data acquisition units, data storage units and data identification units. The number of the data storage units is N and the number of the data identification units are more than or equal to N minus 1, wherein N is a natural number more than or equal to 2. The data storage units and the data identification units are connected with the data acquisition units respectively. The data identification units and the data storage units are connected. The data acquisition units, the data storage units and the data identification units acquire, storage and identify data information of different paper moneys respectively, so that the system can carries out different operations to a plurality of pieces of paper moneys at the same time and allows the different operations to be coincide, different from the identification method that identifies one piece of paper money each time. On the premise of ensuring the paper money conveying speed, the system greatly improving time utilization rate during paper money identification and contributes to the improvement of the precision of paper money identification. In addition, the invention also discloses a paper money identification method using the system.

The invention provides a method for transmitting data from network management system to a transmission equipment, which comprises the following steps: (a) acquiring message from a transmitting queue by a transmission task and storing the message data in a transmission buffer region; and (b) extracting the message data from the buffer region by the transmission task when a data needs to be written to a lower random access memory RAM and the transmission buffer is not empty, and writing into the lower RAM. The invention also provides a method for receiving data from the transmission equipment by the network management system, which comprises uploading the data to an upper RAM by the transmission equipment, generating an interrupt signal, and reading data from the upper RAM when a receiving task receives the interrupt signal.

The embodiment of the present application provides a data transmission method, device, apparatus /terminal/server and computer readable storage medium, wherein the data transmission method comprises:receiving the file data transmitted by the second device through a buffer by the first device, and detecting the transmission speed of the file data to obtain the first transmission speed, wherein, the initial size of the buffer is determined according to the hardware information of the first device and/or the hardware information of the second device; if the first transmission speed is less thana set speed threshold value, adjusting the size of the buffer according to a set rule; Continuing to receive the file data transmitted by the second device using the adjusted buffer. Through the embodiment of the present application, effective adjustment of the buffer size in the data transmission process is realized, and the data transmission speed between the devices is ensured.

The invention provides a node management list structure in P2P networking and a management method thereof. A node management list has multilayer attributes, the multilayer attributes comprise operator information, provincial information, municipal information, grade information, and node information in sequence, the operator information comprises operator identifications which nodes belong to, the provincial information and the municipal information respectively comprise provincial and municipal identifications which the nodes belong to, the grade information comprises grade identifications which the nodes belong to, the node information comprises node identifications, the grade information comprises multilayer grades, the nodes are added to different grades according to the uploading ability of newly-added nodes, and the quantity of the multilayer grades is set in advance. According to the node management list structure in P2P networking and the management method thereof, effective classified management of the nodes can be performed according to different attributes, the optimal node can be rapidly found out during partner node matching, the data transmission speed of the nodes is guaranteed, problems of large-area long-distance data transmission and cross-operator flow are avoided, the operation cost is lowered, and user experience is improved.

The invention relates to the technical field of the Internet, in particular to a virtual machine on-line migration process memory data protection method and device and a physical machine. As the source physical machine migrate to the target physical machine, the source physical machine sends the pre-encrypted memory data of the virtual machine, at the same time, the memory change data in the transfer process of the virtual machine is recorded, and the memory change data is encrypted and sent to the target physical machine until the memory change data stops transmission to the target physical machine when the memory change data is very small, so that on the one hand, the data transmission speed is ensured, and on the other hand, the data transmission security is ensured.

The invention belongs to the field of indoor environment detection, and discloses a dangerous goods warehouse indoor positioning and emergency evacuation system based on a wireless sensor network. Thedangerous goods data are collected through a dangerous goods monitoring formula; the dangerous goods real-time data monitored by the floor is received, and the received data is transmitted to a comprehensive control platform in a wirelessly mode; the door, the window and the fire extinguisher in the warehouse are controlled to be started; meanwhile, the position of the dangerous goods is positioned and warned; the system includes a fire hazard detection module, a ZigBee module, an infrared pyroelectric detection sensor, a GSM alarm and a GPS positioning module. The wireless sensor network isestablished by adopting a Zigbee protocol, the detection node has a self-networking function, and dynamic addition of the network can be realized; the expandability is strong, and the device can add corresponding functions according to actual requirements, and can be realized by only adding the corresponding terminal node and modifying the corresponding control program.

The invention discloses a method and a system for transmitting streaming media data. The transmitting method includes: a transmitting side transmits streaming media data to a receiving side, in the meantime, the transmitted streaming media data is saved in transmitting queue; the transmitting side transmits all streaming media data saved in transmitting queue to the receiving side by using first time as period. The method and system provided by the invention reduce packet loss condition in user data message protocol transmitting process, keeps transmitting speed of user data message protocol, ensures whole efficiency of received data, consequently, fluency and stabilization of video streaming media in playing process can be ensured.

The invention relates to a welded pipe rustproof treatment device and a construction method thereof. The welded pipe rustproof treatment device comprises an operating platform, a pair of rolling structures, a storage tank and a loading hopper, wherein the rolling structures are detachably arranged on the operating platform; a welded pipe supported on the rolling structures is obliquely arranged due to different elevations of the top parts of the rolling structures; the welded pipe supported on the rolling structures is driven to rotate through the rolling structures; the storage tank is arranged on the operating platform and is provided with rustproof paint; an output outlet of the storage tank is connected with a conveying pipe; the conveying pipe is located in the position of the rollingstructure in higher elevation, and the end part of the conveying pipe can be inserted in the welded pipe; the loading hopper is arranged on the operating platform; the loading hopper is correspondingly arranged in the position of the rolling structure in lower elevation and is located under a pipe opening corresponding to the welded pipe.

The invention provides an attack data cleaning method, device and apparatus, a storage medium and a system. The method comprises the steps of detecting whether attack data exists in a network data flow or not; converting a destination address of the network data flow from a data receiving address into an address of a flow cleaning area under the condition that attack data exists in the network data flow; sending the network data flow after the destination address is converted to routing equipment; wherein the flow cleaning area is used for cleaning attack data in the network data flow, converting a destination address of the cleaned network data flow into a data receiving address, and sending the network data flow of which the destination address is the data receiving address to the routing equipment. According to the embodiment of the invention, the transmission speed of the normal network data flow can be ensured while the attack data is blocked.

The invention discloses an environment-friendly cable with high brittleness resistance for a low-temperature environment. An inner diffusion channel, an outer diffusion channel and a self-heating layer are arranged; external water vapor or rainwater enters the self-heating layer through the internal and external diffusion channels; self-heating layer heating, on one hand, the internal temperatureof the cable can be effectively increased; accelerating transmission speed, on the other hand, the heat storage effect of viscous fluid is matched; a certain softening effect can be achieved on the thermal change softening layer from outside to inside; meanwhile, the heat generated by the wire core can be absorbed by the thermal softening layer during working. Therefore, the cable has a certain softening effect on the thermal softening layer from inside to outside, the brittleness of the cable at low temperature is effectively improved, the probability of cracking of the surface of the cable at low temperature is effectively reduced, the service life of the cable is effectively prolonged, material waste is reduced, environmental pollution is reduced, and the environmental protection property is improved.

The invention relates to the technical field of same-screen display control, in particular to a same-screen control method for a feedback controllable terminal operating system. The method comprises the following steps: S1, establishing a signal transceiving relationship between a same-screen control device and a controlled terminal, and between a same-screen display device and an instruction control device; S111, the same-screen control device obtains instruction signal data issued by the instruction control device through the physical cable data, decodes and converts the instruction signal data and then issues the instruction signal data to the controlled terminal in a wireless communication mode; and S121, the same-screen control device obtains the display data of the controlled terminal through the physical data cable, decodes and converts the display data and synchronously transmits the display data to the same-screen display device through the physical data cable. The physical cable is used as a medium for same-screen data transmission and instruction signal issuing, so that the fidelity and the transmission speed of signals can be effectively ensured. A wireless communication mode is used as a means for issuing an instruction signal to a controlled terminal, separation of same-screen data and the instruction signal can be achieved, and the problem that the difficulty ofdata signal processing and transmission is easily increased due to confusion of two kinds of signal data is avoided.

The invention relates to an integrated capsule defect detection device based on machine vision. The integrated capsule defect detection device comprises an integrated box, a feeding device, an image acquisition device, a discharging device, a feeding device, a rejecting device and a central control system, has comprehensive functions, meets the operation requirements of a capsule quality inspection production line, meanwhile, is high in practicability, the central control system judges the image information of to-be-detected capsules in real time, judges whether the image information reflectslight or not, adjusts an angle of a lighting source in real time according to the position of a light reflection point, processes the capsule image information according to a computer image processingtechnology, is high in computer judgment precision and high in recognition speed, errors of manual recognition are avoided, the detection efficiency of the whole detection device is improved, meanwhile, the rotating speed of a discharging rotary plate and the conveying speed of a conveying belt are adjusted in real time according to the passing frequency of the capsules, and the problem that thecapsules are blocked due to too fast conveying or difficult to remove due to too tight arrangement on the conveying belt is solved.

The invention discloses an automatic welding method for realizing the drop properties of a submerged arc welder by a field digital preset mode, which adopts a field bus to realize data transmission between a submerged arc welder power supply control system and a welding tractor control system, a digital preset mode to perform dynamic matching between preset welding process parameters and actual welding process parameters by which the drop properties of the submerged arch welder can be realized in the welding tractor control system so as to realize complete automation of the welding process, and a friendly man-computer interface so as to greatly facilitate user operation.