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6 results about "Network conditions" patented technology

Self-adaption mobile network bus video monitoring terminal

InactiveCN103237193AReduce bit rateStrong fault toleranceDetection of traffic movementClosed circuit television systemsVideo monitoringArea network
The invention belongs to the technical field of vehicle monitoring technology and relates to a self-adaption mobile network bus video monitoring terminal. The self-adaption mobile network bus video monitoring terminal comprises a system core module, a data acquisition module, a human-computer interaction module, a USB (universal serial bus) concentrator module, a wireless communication module, a mobile hard disk storage module, a CAN (controller area network) bus module and an SD (security digital) card storage module. The terminal is combined with embedding technology, H.264 network video compression technology and human body identification and tracking technology, can videotape drivers and conductors in buses, front doors and rear doors and inside condition of the buses during a whole journey, and calculates the number of passengers, provides support for multiple networks, dynamically selects bearing networks according to network condition, and provides smooth real-time videos and vehicle information of passenger number, GPS (global positioning system) positioning information and so on. Therefore, by the aid of the self-adaption mobile network bus video monitoring terminal, effective monitoring to safe running of the buses and normal work of the drivers and the conductors is provided, and particularly real-time condition inside the buses can be quickly known under the condition of emergencies.
Owner:TIANJIN UNIV

Communication device network adjustment method and system

The invention provides a communication device network adjustment method and system. The method comprises the steps of receiving and sending a signal through a communication device and amplifying the received signal; and detecting the received signal through the communication device, detecting the strength of the signal, judging whether normal network communication is influenced or not, proceedingwith current network communication if a communication network is normal, and starting a backup signal receiving device if the communication network does not reach a normal communication level. According to the method and the system, the strength of the communication network is automatically detected and the device for adjusting the network strength is automatically switched on or switched off, sothe effect of automatically adjusting the network is achieved, and the usage of the communication device under the condition that the network condition is poor is enhanced.
Owner:HAINAN CHIJISHAN TECH CO LTD

SDN-based data service transmission optimization method and device

ActiveCN110191306ATake advantage ofStable deliveryClosed circuit television systemsData switching networksScheduling instructionsNetwork conditions
The invention discloses an SDN-based data service transmission optimization method and device, and the method comprises the steps: deploying an SDN controller in a network to achieve the unified planning and scheduling of the network, carrying out the expansion of an openflow protocol, enabling front-end equipment to support the openflow protocol, and obeying the unified scheduling of the SDN controller. The SDN controller monitors the network condition in real time, and when it is found that no redundant network resources are available in the network, the SDN controller coordinates the low-priority video stream service to restrain sending. After receiving the scheduling instruction, the corresponding front-end equipment suppresses the video stream sending of the front-end equipment. Afterthe network resource is recovered, the SDN controller notifies the front-end equipment to recover the related video stream again. Normal sending of high-priority services can be effectively ensured,and network resources are fully utilized.
Owner:ZHEJIANG UNIVIEW TECH CO LTD
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