The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper introduces a robotic system for electric energy meter detection, which is composed of AGV, RGV, 6-DOF manipulator and vision positioning. AGV is used to transport the electric energy meter from warehouse to transfer station for detection and send them back after detection. The manipulator is installed on a RGV and used to pick the electric energy meter to the detection platform with the...
We present a relative location estimation algorithm based on the coordinates inner product matrix-based maximum likelihood (CML) for determining the relative locations of sensor nodes in wireless sensor networks. We use the geodesic distance between each node to obtain the coordinates inner product matrix, then derive the maximum-likelihood estimator for coordinates inner product matrix to estimate...
Self-localization is a precondition for many wireless sensor network (WSN) applications. To obtain a more accurate and robust localization, an improved quadrilateral localization algorithm is proposed. Considering a real environment, a flip ambiguity detection criterion is adopted into trilateration localization. And for the propose of avoiding intense fluctuation and error propagation of localization...
Mobile anchor node is used for localization in Wireless Sensor Networks. It can lower the cost of network and reduce the dependence of localization precision of the algorithm on the density of anchor nodes. However, in the existing algorithm for the localization of mobile anchor node, little research in detail has been done on the path of mobile anchor node and the timing of sending beacon. In this...
An improved localization algorithm W-Ecolocation in wireless sensor network is proposed. When there is a high erroneous constraints rate, the Ecolocation algorithm which only considers the locations with maximum computing number of matched constraints cannot obtain the optimal location estimate. The W-Ecolocation makes use of more locations with great computing number of matched constraints and takes...
As many routing protocols for wireless sensor network canpsilat handle dynamic topological variation efficiently, a new hierarchical routing protocol (HTVRP) based on the shortest path is proposed. In this protocol, all of nodes are arranged to different logic layers according to their distance from the sink, thus a ring-hierarchy, tree-framework topology is formed. Each node merely communicates with...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.