Motorways/NMCS2

• MIDAS Outstation
• MIDAS Interface Unit
• IDS
• Standard Transponder
• Local Communications Controller
• HADECS

Peek’s MIDAS Outstation conforms to Highways Agency specification TR2169. It provides interfaces for up to 20 standard loops (used in pairs) and runs detection algorithms to identify when an incident has occurred. Currently up to three algorithms can be simultaneously enabled covering speed, flow and occupancy. The current unit communicates data to the instation via its RS485 transponder interface and also to adjacent equipment via its RS485 auxiliary link. The unit has an RS232 Engineer’s Terminal interface for configuration and for on-site gathering of real-time data. Peek will be releasing an updated unit incorporating IP connectivity for both the instation link and the Engineer’s Terminal facility. This updated unit will maintain the RS485 interfaces for backward compatibility.

IDS

The Peek Incident Detection System (IDS) unit is a stand alone inductive loop based outstation rack. It incorporates Peek’s proven logic processor module, and has capacity for up to 8 detector cards, providing up to 32 channels of detection. The unit runs a number of incident detection algorithms including HIOCC and can log a range of measurements depending on its configuration including counts and categorisation by speed. Provided with an RS485 interface the unit is designed to operate in a system typically with many outstations and a single configuration and data gathering instation. The communication protocol for the rack is provided by Peek to enable users to prepare their own instations customised to their precise needs.

Standard Transponder

Peek’s Standard Transponder Unit conforms to Highways Agency specification TR2045. A compact 2U high 19” rack mount design it provides the interface between the Signalling Local Communications Controller (LCC) and the drivers for the various HATMS motorway devices including matrix signs, message signs & fog detectors. It provides the necessary translation of commands from the instation to the instructions required by the various drivers and also intelligent aspect adaptation if it detects that a sign has developed a sufficiently severe fault.

HADECS

The Highways Agency Digital Enforcement Camera System (HADECS) is a digital enforcement product designed in the first instance to record violations of speeds limits set via variable speed signs. As such it automatically adjusts its speed threshold to that appropriate for the displayed sign. Combining radar technology for speed detection and multiple cameras for image capture the camera outstation section of the equipment captures offence data and encrypts it to the standards specified by the UK HOSDB. This data is then automatically collected a number of times each day and saved to DVD in a secure police office by the HADECS instation.