Tracking mobile objects using wireless sensor networks

Gennady P. Vinogradov

Research Institute Centerprogramsystems

The aim of the study is to improve the efficiency of the functioning of mobile
object tracking algorithms (CSP targets) in distributed sensor networks as part of cyberphysical systems based on the organization of their interaction with initialization/routing algorithms. The task of localizing and tracking objects of intrusion into the protected zone is the basis of the protection system for critical objects. Tracking multiple targets with a wireless sensor network is a hot topic. Its successful solution by means of sensor networks involves solving a number of problems, among which there are two main ones that determine the successful operation of sensor networks. The first is the availability of effective methods of information exchange between local nodes, the second is the organization of joint signal processing (CSP) by a group of nodes based on the collected information about the state of the environment in their area of responsibility as a result of the occurrence of certain events. The problem of detection, localization and tracking of one target in the protected zone is accepted as a model example. This example discusses the main ideas underlying the integration of algorithms, as well as the main aspects of the implementation of detection, localization and tracking algorithms. The proposed solutions take into account the limitations associated with the capabilities of local nodes, the network as a whole and routing. The source of data for the proposed algorithms are signals from sound, seismic, thermal, etc. sensors, in which the signal power has a pronounced maximum depending on the distance from the target to the network node. The results obtained extend to the problem of tracking multiple targets, which involves assessing the applicability of identification and classification methods in conditions where there is an overlap of perceived signals by sensors. The architecture of a system for joint data processing in distributed sensor networks is considered. The subject of consideration are methods for tracking a plurality of moving objects in a protected area. The main steps in the tracking procedure consist of: target detection, target classification, location estimates, and target movement trajectory prediction. Algorithms for solving these problems are discussed.

sensor networks, detection, localization; classification, tracking

Back