Shenyang Institute of Automation, Chinese Academy of Sciences Patent applications |
Patent application number | Title | Published |
20130089003 | METHOD FOR TWO-STAGE PACKET AGGREGATION FACING WIRELESS SENSOR NETWORK OF HYBRID TOPOLOGY STRUCTURE - A method for two-stage packet aggregation facing wireless sensor network with hybrid topology structure including: building various nodes in a wireless sensor network into a hybrid topology structure which combines the star topology and mesh topology; establishing a two-stage packet aggregation architecture for periodic sensor data based on the above described topology structure; determining the packet format, aggregating and disaggregating the two-stage packets based on the topology structure and aggregation architecture; according to the application, the aggregated nodes in the network configuring router nodes and aggregation attributes of the nodes; according to the aggregation attribute, the sensor nodes performing the first-stage aggregation and generates an first-stage aggregation packet; according to the aggregation attributes, the router node implementing second-stage aggregation and generating a second-stage aggregation packet; the aggregation nodes taking charge of disaggregating the aggregated packets. Embodiments of the invention adopt the above described hybrid topology structure, feature a two-stage packet aggregation method, decrease the overhead of packet-head, reduce the energy consumption of the nodes and inter-node interference, and save communication resources. | 04-11-2013 |
20120173011 | Implementation of Transmission and Control Platform for Equipment Front End Module of Semiconductor Production System - A method of platformization of an equipment front end module of a semiconductor production system includes the steps of: establishing a subsystem management module, a communication interface module, a parse module, and a network communication module; directing the command by the communication interface module to the subsystem management module; analyzing the command by the subsystem management module and sending the command to the corresponding subsystem module; sending the command from the corresponding subsystem module to the controller of the equipment front end module through the network communication module; and analyzing message by the parse module, sending a feedback to the corresponding subsystem module, and then sending the feedback to the control system of the semiconductor production system through the communication interface module. The present invention provides a standardized software interface to standardize different IC equipment control systems and to enhance the production efficiency of the system. | 07-05-2012 |