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30 results about "Mobile collaboration" patented technology

Mobile collaboration is a technology-based process of communicating using electronic assets and accompanying software designed for use in remote locations. Newest generation hand-held electronic devices feature video, audio, and telestration (on-screen drawing) capabilities broadcast over secure networks, enabling multi-party conferencing in real time (although real time communication is not a strict requirement of mobile collaboration and may not be applicable or practical in many collaboration scenarios).

Method for selecting safe relay for multiple targets in mobile collaborative network

The invention relates to the technical field of mobile communications and provides a method for selecting a safe relay for multiple targets in a mobile collaborative network. In the method provided by the invention, a channel fading threshold as well as and the various states and the state transition probability of candidate relay nodes are determined through periodically transmitting a training sequence and feedback information; when the fading speed of some channel is greater than the threshold, dynamic relay selection is carried out, or else, semi-static relay selection is carried out; and during the process of relay selection, the optimal safe relay is selected to collaborate data transmission according to the total compensation determined by a plurality of target values, such as system safety capacity, and the like. With the adoption of the method provided by the invention, the characteristics of wireless channels in the mobile collaborative network can be accurately and timely described, and the dynamic selection of the optimal safe relay for the multiple targets is realized through lower complexity, so that the method has strong flexibility and expandability; and the transmission efficiency is further increased through carrying out different relay selections according to channel states.
Owner:BEIJING UNIV OF POSTS & TELECOMM

System used for improving automatic control of machine operations of construction site machinery

The invention relates to a system being configured for confirming a mobile cooperative target being automatically tracked and measured by a total station or theodolite in order to automatically control a machine operation of a construction site machine, comprising at least one total station or theodolite with a UWBST anchor-module having an anchor-ID, and a cooperative target associated with a UWBST tag-module having a tag-identifier (tag-ID) and being used for automatically controlling a machine operation of the construction site machine. The system further comprises a machine control unit associated with the construction site machine configured for controlling machine operations based on tracking and continuously measuring cooperative targets wherein tracking and continuously measuring is carried out by the total station or theodolite, and an ultra-wide band (UWB) distance meter associated with the UWBST anchor-module configured for measuring a distance (UWB-distance) between the UWBST anchor-module and the UWBST tag-module. The measured UWB-distance with the assigned tag- and anchor-IDs is then provided to the machine control unit, wherein the machine control unit is configuredfor matching measured optical distances to measured UWB-distances and using the matching as confirmation that the cooperative target being tracked and continuously measured by the total station or theodolite is the cooperative target being used for automatically controlling the machine operation.
Owner:LEICA GEOSYSTEMS AG

Cache auxiliary task cooperative unloading and resource allocation method based on meta reinforcement learning

The invention discloses a cache auxiliary task cooperative unloading and resource allocation method based on meta reinforcement learning. Comprising the following steps: establishing a cache-assisted task collaborative unloading and resource allocation model in a mobile collaborative application scene; acquiring a cache state of the request task; obtaining a learning model; and solving an unloading decision so as to reduce the energy consumption and time delay of the mobile user in the calculation unloading process under the mobile cooperation application program scene. According to the invention, the user preference, the tradeoff of energy consumption and time delay and the influence of the cache state of the task on the unloading decision are comprehensively considered, and a cache auxiliary strategy is provided. The task cache hit rate is improved while the network overhead is balanced, and the cache state of the task is determined according to the task cache hit rate; and finally, an online calculation unloading strategy is provided based on meta reinforcement learning, and the problem that the sampling efficiency of a traditional deep reinforcement learning algorithm on new tasks is low is solved. Experimental results prove that compared with other algorithms, the time delay and energy consumption of the mobile user can be effectively reduced, and the user experience quality is improved.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Integrated mobile collaborative robot control system based on field bus

The invention discloses an integrated mobile collaborative robot control system based on a field bus, and relates to the technical field of robot control. The system comprises a task decomposition unit for decomposing tasks corresponding to a robot, a task monitoring unit for obtaining the quantity of remaining tasks of the robot, a comprehensive analysis unit for analyzing the pre-completion degree Dj of the robot, and a task distribution unit for redistributing the remaining tasks according to the pre-completion degree Dj. According to the system, task delay caused by insufficient electric quantity is avoided by pre-estimating the completion condition of each robot for distributed tasks, reasonable scheduling is performed in combination with the conditions of the tasks and the robots, the tasks are re-distributed in time, it is ensured that each task is completed smoothly, and the robot is prevented from being insufficient in power, each task and the corresponding power consumption form a power consumption table, and the power consumption table is updated in real time to form data reference of each task and the corresponding power consumption, so that a reference basis is provided for distribution of subsequent tasks, the tasks are reasonably distributed, and the task completion efficiency is improved.
Owner:深圳墨影科技有限公司

Outage probability performance prediction method for mobile communication system

The invention discloses a method for predicting the outage probability performance of a mobile cooperative communication system. Based on the multi-transmit and multi-receive and hybrid decoding, amplification and forwarding cooperative communication technologies, a mobile cooperative communication system model is established, an optimal mobile relay node is selected, and a mobile information source is selected. When the signal-to-noise ratio of the link to the optimal mobile relay node is greater than the signal-to-noise ratio threshold, the decoding and forwarding strategy is used to forward the mobile source signal to the destination, and when it is smaller than the signal-to-noise ratio, the amplification and forwarding strategy is used to forward the signal to the destination. A transmission antenna selection scheme, respectively deduces the closed expressions of the outage probability of its mobile cooperative communication system, and uses neural networks to intelligently predict the outage probability performance of the physical layer of mobile communication, which is consistent with the existing extreme learning machine, local weighted linear The methods of regression, support vector machine, generalized regression neural network and radial basis function neural network are compared, and better performance prediction effect of outage probability is achieved.
Owner:QINGDAO UNIV OF SCI & TECH
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