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Evaluation of a "smart" pedestrian counting system based on echo state networks

: Mathews, E.; Poigné, A.

Postprint urn:nbn:de:0011-n-940047 (519 KByte PDF)
MD5 Fingerprint: 69695d5c712a16461e6ad492f3f5129f
Created on: 7.5.2009

EURASIP journal on embedded systems 2009 (2009), Art. 352172, 9 pp.
ISSN: 1687-3963
ISSN: 1687-3955
Journal Article, Electronic Publication
Fraunhofer IAIS ()
echo state network; person counting system; wireless sensor network

We have designed an inexpensive intelligent pedestrian counting system. The pedestrian counting system consists of several counters that can be connected together in a distributed fashion and communicate over the wireless channel. The motion pattern is recorded using a set of passive infrared (PIR) sensors. Each counter has one wireless sensor node that processes the PIR sensor data and transmits it to a base station. Then echo state network, a special kind of recurrent neural network, is used to predict the pedestrian count from the input pattern. The evaluation of the performance of such networks in a novel kind of application is one focus of this work. The counter gave a performance of 80.4% which is better than the commercially available low-priced pedestrian counters. The article reports the experiments we did for analyzing the counterperformance and lists the strengths and limitations of the current implementation. It will also report the preliminary test results obtained by substituting the PIR sensors with low-cost active IR distance sensors which can improve the counter performance further.