The sensor for safe doors in buses and trains
The entry and exit area is a central place of danger in public transport. Tactile door protection systems that react to the touch of persons or objects reliably prevent getting pinched and dragged along; however, they do not provide comprehensive protection against getting shoved and the danger of a fall onto the tracks. This is a threat especially for mobility-impaired, unsteady or weaker persons who lose their balance when the door opens immediately after contact.
In order to prevent this situation, Mayser has developed the non-touch detection system which additionally secures the danger zone. Sensors are integrated into the finger protection profiles with soft closing edges and create an electrical field. This field changes when a passenger or a conductive approaches it. The sensor detects the change and sends a signal to the door control system. Door movement is stopped before contact or the door reversed. The capacitive technology optimally protects passengers and contributes to the reduction of delays in cycle times – compared to other protection systems available on the market. First reference vehicles (city buses, tramways and standard-gauge railways) are already equipped with the Mayser non-touch detection system.
Advantages of non-touch collision protection:
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The movement of the door is stopped before contact with a passenger or an object.
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Only conductive objects like humans or animals are detected in the immediate danger zone.
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Unlike sensors like scanners or light curtains, non-touch detection system reacts only with an immediate danger of getting pinched and a collision hazard and cannot be manipulated.
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The sensor is electromagnetically compatible and not failure-prone with environmental influences like snow, rain or blown in leaves.
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Before commissioning, the door field is taught in once (teach-in) and the system adjusted to the surrounding area.
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Retrofitting is possible with little installation effort
