KSR
Public Transport Priority System
When you choose KSR you receive the top-of-the-art Public Transport System on the market.
Short transportation times are an important incentive for citizens to switch to buses and trains. For operators, a faster and smoother public transport system means significant savings in operational costs. At the same time, a well-developed bus and train network is assured for a sustainable improvement in the level of pollution in the cities.
The public transport acceleration system KSR is designed for all customary, radio-data based traffic light systems.
INFRARED RADIO BEACON PRINCIPLE:
For local synchronization, an infrared location beacon is used in the approach area for a crossing. When the public transport vehicle enters the area, the reporting points required for requesting the traffic light system are transferred from the beacon to the vehicle. By means of radio messaging, the vehicle now sends the corresponding information at the respective reporting points to the traffic light system.
AUTOMATIC VEHICLE PROCESS:
All routes and reporting points are stored in the vehicle‘s onboard computer. The position is determined by means of an odometer and the logical location synchronization at the bus stops. The traffic light requests are transferred from the onboard computer and stored.
D-GPS (Differential Global Positioning System):
The physical location of the vehicle occurs by means of a satellite-based positioning system. When the corresponding coordinates are reached, the data messages for controlling the traffic light system are sent to the control unit.
Technical Details
KSR DF MODEM: | |
Transfer method | simplex (optional half duplex) |
Transfer rate | switchable 1,200 bit/s or 2,400 bit/s |
Modulation method | FFSK (as per VdV) |
Modulation frequency for logical „one“ | 1,200 Hz for 1,200 bit/s and 2,400 bit/s |
Modulation frequency for logical „zero“ | 1,800 Hz for 1,200 bit/s; 2,400 Hz for 2,400 bit/s |
Data interface to KSR CPU | CAN-Bus |
Power consumption | 20 W typical |
Message and protocol storage | 8,000 entries minimum |
SUPPLY VOLTAGE: | |
Power supply | primary pulsed switching supply |
Dimensions | 3 height units, 8 depth units |
Voltages | +24 V, total power: 60 W |
MECHANICAL CONSTRUCTION: | |
Mechanical design | 19“ rack components, 3 height units |
Width | depending on expansion level, starting with 42 depth units |
Operating temperature range | -20°C to +70°C (ambient) |
BASE VERSION KSR (MINIMUM EXPANSION LEVEL): | |
Serial: | 1 power supply, 1 master backplane (CPU), 1 slave backplane (radio-data modem) |
Parallel: | 1 power supply, 1 master backplane (CPU), 1 slave backplane (radio-data modem), 1 I/O 64 |
Extendible through side-by-side slave backplanes | |
KSR CPU: | |
AMD Elan 520 | 133 MHz |
CompactFlash Card optional | 8 MB to 1 GB |
EPROM capacity optional | 256 kByte |
Data security | GoldCap on board for RAM and RTC |
Watchdog | |
INTERFACES: | |
Serial interfaces | 6 x RS 232, optionally RS 422, RS 485, 20 mA |
Parallel Input / Output: | |
Parallel inputs/outputs | 192 channels |
Inputs | optocoupler isolated |
Outputs | optocoupler isolated |
Normal operation | Status display of inputs/outputs by LEDs, component status display |