Also online at: www.dijonline.co.uk 86 THE door industry journal spring 2024 Automated Gates & Barriers Detection Issues at Perimeter Exit Solved with Above Ground Vehicle Sensor The subsiding ground caused detection problems with the induction loop at a site exit. After installing our OPTEX OVS-02GT above-ground vehicle detection, the exit is functioning properly again. INTRODUCTION Van der Panne is a scaffolding company for large and small projects. At their location in Hendrik Ido Ambacht in the Netherlands, they store all their materials. Due to this, there is a lot of traffic on the premises, from cars to heavy transport. When constructing the premises exit for Van der Panne, Geran Handel B.V. installed an automatic sliding gate and a barrier. JOB SITE The automatic barrier and sliding gate are situated at the site’s exit. Through this exit, a variety of vehicles, from small to heavy transport, leave the premises. During business hours, the sliding gate is already open, and only the barrier is in operation. After business hours, the sliding gate also closes. However, there are instances where shipments are picked up or returned after business hours, necessitating the opening and closing of both the sliding gate and the barrier for exiting vehicles. PROBLEM The company is located on a site formerly zoned for municipal storage, consisting mainly of mud and loose ground. When Van der Panne started using the site, it was paved and protected by a fence with an automatic sliding gate and barrier. An induction loop was installed for vehicle detection. This worked satisfactorily; though unfortunately, the ground started to subside. Recently, the ground loop was no longer functioning accurately, likely due to the subsidence. Van der Panne raised this issue with Geran Handel B.V., and together they began searching for an alternative solution for vehicle detection to address future subsidence and the potential problems associated with it. While the repair is necessary, Van der Panne is hesitant because it would mean that the exit cannot be used for several hours or even days, and multiple companies would need to collaborate simultaneously to fix the current application.
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