Efficient Collection of Ridership and On- Time Performance Data - Init

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Automatic Passenger Counting Efficient Collection of Ridership and On-Time Performance Data Vehicle System • "IRMA" vertical infrared array sensors detect the number and direction of movement of boarding and/or de-boarding passengers. The dimensions of the housing are 90x32x34 mm = 3.54x1.26x1.34” (LxWxH). Two sensors per a wide door (Door width 48”) • The sensor consists of active and passive components to eliminate as many errors as possible. • Due to inner and outer curtain, the intelligent sensor is able to distinguish between boarding /de-boarding passengers. The sensor is self calibrating the active and passive sensing components after the door is closed. NO further adjustments are necessary! • „IRMA" analyzer unit (connected to the sensors) transforms the infrared information provided by the sensors into passenger counts per direction per door and transmits the data to the on-board COPILOTsmart. • The analyzer is connected to on-board computer COPILOTsmart which, after each stop, interrogates the results with regard to counts at each door and distinction between “ons“ and “offs“ and stores the data in correlation with GPS and time. The door contact input of the analyzers is connected to the train line to receive the door open and close signal. • Cables and connectors between sensors, passenger counter and on-board storage device 2.1.1 Infrared Array Sensor The main component of the APC system is the sensor. The sensor consists of three components: • Passive component (pyro-electric detector) • Active component (light scanner) • Combined photo diodes (constant light receiver) Andreas Rakebrandt 05-08-02 C:\Dokumente und Einstellungen\bau\Lokale Einstellungen\Temporary Internet Files\OLK2A\APC_Paper_RAK_2.doc TAB 5, A Efficient Collection of Ridership and On-Time Performance Data Page 6 of 13 This document contains proprietary information and has to be treated confidentially.
Automatic Passenger Counting Efficient Collection of Ridership and On-Time Performance Data Vehicle System Figure 3a: Sensor Description Passive Component Active Component The detector contains 6 detector elements, the The detection range of the light scanner is detection range of which has been arranged as also arranged as two “parallel” curtains. two “parallel” curtains. Andreas Rakebrandt 05-08-02 Figure 3b: Arrangement Of Sensor Detection Area When a person passes the recording area of the sensor, he/she is “viewed” by both the passive component and the active component as well as by the double photo diode. All signals generated in the sensor are amplified and digitized by the sensor and then transmitted to the analyzer unit via synchronous serial interface. The signals are transformed into counts by the analyzer unit. C:\Dokumente und Einstellungen\bau\Lokale Einstellungen\Temporary Internet Files\OLK2A\APC_Paper_RAK_2.doc TAB 5, A Efficient Collection of Ridership and On-Time Performance Data Page 7 of 13 This document contains proprietary information and has to be treated confidentially.
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Efficient Collection of Ridership and On- Time Performance Data - Init

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