Abstract

The present invention relates to a passage barrier system for controlling the passage of pedestrians. The passage barrier system comprises a barrier member rotatable by an actuator means about a vertical rotation axis of a barrier member support between a position blocking in use the passage of pedestrians and a position enabling in use said passage, a sensor means for detecting the rotation angle of the barrier member and a controller means fed by an output signal of the sensor means for controlling the actuator means. In order to provide a passage barrier system which is neither prone to electrical and magnetic interferences nor prone to wear or suffering fragility and little resistance to dirt, the sensor means comprises a capacitive rotation encoder having a rotor and stator, and the controller means comprising a memory storing a list of rotation angles to provide a precise definition of the blocking and passing positions of the barrier.

IPC Classes  ?

• E06B 11/08 - Turnstiles
• G07C 9/02 - Turnstiles with registering means
• G01P 3/483 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable capacitance detectors
• G01D 5/24 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
• E05F 15/00 - Power-operated mechanisms for wings