Automated information system for the bus / railway stations AISBRS-1061

1. Purpose and scope

Automated information system for the bus stations and railway stations AISBRS-1061, hereinafter AISBRS, automatically issues voice and musical messages, recorded in its memory according to a schedule. The messages can be various: emergency situations, arrival/departure on schedule, detection of objects, location of food corners, WCs, rooms of mother and a child, etc.

AISBRS also provides the ability to transmit the voice message from the train station dispatcher by the microphone. In this case the message transmitted from the memory automatically fades.

Additionally, AISBRS can work as the primary clock of the railway clock complex (with the clock DC-0160) (function on request).

The AISBRS does not require installation and adjustment of the clock. The time is set using the satellite system GLONASS/GPS.

AISBRS has a line output and a built-in audio power amplifier which can be used for the control monitoring. Amplifying-acoustic complex is not delivered, as usually the customer’s PA audio power amplifier is used.

2. Contents of delivery

1. Automated information system AISBRS-1061 with the SD card (8-62) GB

 1 pc.

2. Power supply unit (9...15 V, 0,5 A)

 1 pc.

3. Audio cable

 1 pc.

4. Microphone M-0905

 1 pc.

5. Programme 1061pc and necessary engineering documentation

 (see on the flash card of the device)

3. Basic technical characteristics

1. Max. number of audio fragments issued automatically according to the schedule

128*

2. Min. broadcasting interval of audio messages 

1 min

3. Max. duration of audio fragment

is not limited

4. Flash memory capacity (SD or SD HC card)

(8-32) GB

5. Max. continuous recording capacity with the 1 GB SD card

10 h (bitrate 96 kbps, 44 kHz)

6. Audio files recording format

mono, mp3 (bitrate 96…300 kbps)

7. Audio frequency range of reproduced audio messages

not narrower than (40… 20000) Hz

8. Rated level of the audio signal at line output

not less than 0,5 V

9. Max. peak output power of the built-in power amplifier at the load of 4 Ω at the supply voltage 12/24 V

Formula for calculating Ppeak=Um*Um/Rload, where Um is the max. signal amplitude.

not less than 2X (4/16 W)

10. Max. average output power of a sinusoidal signal at the load of 4 Ω at the supply voltage 12/24 V and harmonic factor = 10%

not less than 2/8 W

11. Load resistance

Rated load resistance

(2…8) Ω

4 Ω

12. Interface for connecting external devices 

RS-485 – 1 pc.

13. Max. number of microphones with broadcast priority 

1 pc.

14. Ready time for operation after connection

not more than 0,3 sec

15. Continuous work time

not less than 24 h

16. Current consumption in the silent mode

in the max. power mode at the load of 4 Ω

not more than 200 mA

not more than 2 A

17. Operating temperature range

(-20…+60) °С

18. Storage temperature range 

(-30…+80) °С

19. Setting and adjusting the clock 

automatically

20. Max. length of a two-wire communication line of a timing clock with the indicator board

not more than 1 km* 

21. Max. number of secondary clock (indicator boards) of the type IB-012Х 

32 pcs.*

22. No. of inputs for connecting external sensors of the “dry contact” type 

2 pcs.

23. No. of outputs of the “open collector” type (1 A max, 35 V max) 

2 pcs.

24. Supply voltage

(220±42) V

25. Power consumption from the network 220 V

not more than 10 W

26. Dimensions

not more than 151*51*111 mm

27. Weight

not more than 0,81 kg

Design and principle of operation

The device (photo 1) consists of the automated system unit, power supply unit and a microphone. The information system has a metal housing, microphone’s housing is plastic.

The automated system unit contains a built-in clock on the basis of the GLONASS/GPS receiver with an external antenna, an SD memory card, a microcontroller, an mp3 decoder, a power amplifier, a sign-synthesizing liquid crystal indicator, an outer power supply and an interface for connection with the slave clock*.

Information is recorded on a SD card of 1 Gb or higher capacity using the PC, card reader and programme.

Audio information is issued automatically according to the schedule programmed on the flash card using a PC.

The programme for transferring information on the flash card is included in the delivery set.

The microphone is switched on by pressing the button on it. When the microphone is turned on, the volume of the message being transmitted is automatically reduced (if it was being transmitted at that time).

The volume of the microphone and volume of audio files is adjusted separately programmatically using the “Volume” button and rewind buttons. The automated system unit has a separate line output for connecting an external power amplifier.

The rear panel of the device has connectors for power supply, GLONASS/GPS antenna, line output and input, acoustics, interfaces RS-485, RS-232, SPI, microphone, external message release button.