Bode Digital Railways – The Boarding Management Unit
In order to face the challenges of the increasing speed of technological developments in the 21st century, Schaltbau Bode has introduced an innovative digital strategy to improve both safety and passenger comfort with their own Boarding Management Unit.
A Bode entrance system will no longer rely on the classic order-action principles only, but rather monitoring the whole entrance area and e.g. replacing the pushbutton logic with an innovative gesture controlled interface. Complex sensor systems already successfully established and well accepted in the automotive and industrial sector will now be an integral part of a door system allowing operation by virtual interfaces and offering even more safety and comfort. Even passenger counting and ticketing are side features especially interesting for any public transport operators.
The implemented sensor arrangement of the entrance system relies on highly sophisticated linear laser scanning devices. The laser distance sensor, currently one of the most powerful measurement tools on the market, is used in a variety of industrial applications such as driving assistance systems, medicine technology, robotics etc. Due to its reliable characteristics, e.g. accuracy, definiteness, interference immunity, and target independence it is more than state of the art technology used within the heart of the BMU.
The grouping of numerous laser beams into one central sensor unit allows comprehensive monitoring with a great many functional features. Moreover, this kind of sensor is not subject to any data protection limitations, which is a clear advantage in comparison with CCTV (closed-circuit television) based systems. Thus, the Bode BMU is solely based on sensors using the laser technology.
The BMU arrangement usually is built around two laser sensors, i.e. an internal sensor and an external sensor. Each sensor is installed in such a position, that the sensitive areas for interaction with the Bode entrance system can be monitored. The external sensor is located outside, preferably above the door. The monitored area is visualized as the top perspective view over the scenery as illustrated in Fig.1. The internal sensor is located either on the top right or left side of the entrance in order to cause no interference with the mechanics of the door but still maintain a comprehensive overview of the vestibule entrance area. The covered areas of both sensors are called the internal active area and the external active area. The information of both active areas can be directly provided by the laser sensors and evaluated by the door control unit, respectively.
FIGURE 1: Sensor positions and Bode Boarding Management Unit