LED display panel for the stop LEDDPS-0770

LED display panel for the stop, hereinafter LEDDPS (photos 1 – 6), displays information about the estimated arrival time of the transport vehicle at the stop. The display panel is intended for the passengers waiting at the stop for the transport vehicles.

Note. Optionally the function of giving voice information is possible.

Principle of operation.

Display panels are the part of the Automated Dispatch Management System of the public transport, please refer to pic.1

The principle of work is as follows:

Transport vehicles, equipped with the satellite subscriber terminals, transmit to the server of the Automated Management System coordinates of their location. The server of the Automated Management System processes the received data, estimates the arrival time of the transport vehicle at each stop and transfers data to the server of the display panel. The server of the display panel transmits the data received from the server of the Automated Management System to the display panels upon requests from them.

The information received is displayed at the panel.

The connection between the display panel and the server is performed via cellular communication channel GSM/GPRS or via cable Ethernet channel.

The time synchronization of the time on the table is possible via GLONASS or data channel.

The panel can be made on the basis of LED modules with a pitch from 4 to 10 mm in frame with the ABS plastic casing without glass (IP-51) or in the aluminum profile as with the anti-vandal protective glass (IP65) or without it (IP51).

Please refer to Pic. 1 for the classifier for ordering the display panel.

General characteristics of the display panel:

1) pixel colour – RGB (full colour);

2) brightness colour – adaptive automatic;

3) time synchronization by GLONASS, GSM or Ethernet signal on request;

4) data reception channel – GSM/GPRS or Ethernet on request;

5) there is a possibility of giving voice announcements, it is implemented with the additional speaker and LF amplifier.

The comparative characteristics are shown further in the tables 1 – 2.

Photos 1-6 show display panel of the type DPS-0770.2-p4Z-N-M.

Photos 7-8 show display panels of the type DPS-0770.2-p5Z-N-M.

Display panels LEDDPS-0770.2-p4Z-2-1 and LEDDPS-0770.2-p4Z-2-2 do not contain LED service lines (e.g. “Name of the stop”, “Time”, “Date”, “Route”, “End stop”, “Min”) which are printed in this case on top.

Unlike them, the display panels DPS-0770.2-p4Z-N-2 (N=3-6) have service lines.

The 3^rd and further lines show column by column from left to right:

- type of the transport vehicles

- route No.

- estimated arrival time in minutes

The bottom line can be used for displaying service, advertising information.

There is a possibility to display information in the shortened version (without displaying the name of the final stop). In this case the display panel contains twice as more information about the arrival of the transport vehicle.

If the number of transport vehicles arriving at the bus stop is more than the number of information lines, information about them is displayed in the interchange mode with the interval of about 5 seconds.

The display panel can be installed either on the roof of the stop or on the pole or integrated in the wall of the bus stop pavilion.

Fixation is made using special brackets.

If the voltage in the electrical network ~220 V may periodically be absent, it is recommended to power the board from the uninterruptible power supply.

Table 1. Characteristics of the LED display panel for the stops with the LED pitch 4 mm (LEDDPS-0770.2-p4Z-N-M).

Table 2. Characteristics of the LEDDPS with the LED pitch 5 mm (LEDDPS-0770.2-p5Z-N-M).