Radar Vision provide specialist system integration and systems engineering work. We apply and adapt existing technologies to solve typically hard to solve problems. Sensors play an important role in all our projects, because measurement is fundamental to any monitoring, control or automation system. Our expertise and experience in sensing include
A few recent projects are listed below to demonstrate our practical exposure to these technologies
Radar Vision designed a wide spectrum train collision avoidance system based on the European Railway Traffic Management System (ERTMS)/European Train Control System (ETCS) specifications. The system consist of the first ever full spectrum sensing system covering the full electromagnetic spectrum. The software implement sensor data fusion between cm (UHF, lower, upper), mm (K-band microwave), um (long wave infrared thermal), nm (visible/optical) sensors to detect other trains and track obstacles such as vehicles and pedestrians. The system provides a multi-level driver assistance and warning system and optionally interface to the emergency braking system. The system was tested and demonstrated on the 10M motorcoaches.
Radar Vision did the detailed system and equipment design for the Tshwane Advanced Public Transport Management System that include equipment on-board the buses, equipment at stations, equipment at the central control centre and equipment at the bus stops. The system include a full route planning, dispatch management, advanced vehicle security, traffic signal pre-emption and passenger information sub-systems.
Radar Vision did the detailed roadside system and equipment design for the South African National Roads Agency Limited (SANRAL) Freeway Management System (FMS). The system consist of NTCIP compliant roadside equipment, 3 central control centres and linked FMS software. The national system covers
Radar Vision designed shopper monitoring system consisting of ultra wideband 3D location sensing of shopping trolley in store using angle of arrival and time of flight measurement. The system tracks shopper movement through a store in time and space. In addition the system uses low cost covert cameras to identify the demographics of shoppers and combine this information with purchased product information that is sniffed covertly from the point of sale devices. This system provides enough precision to allow advertising and packaging design effectiveness to be monitored and classified against age and sex.
Radar Vision designed and implemented a radar system at a export wine farm in South Africa. The system consisted 10 FMCW radar sensors with an instrumented range of 150m to provide early-warning for the main farm house. A SCADA system with user-level authentication, MIMIC panels, Alarm logging and acknowledgement and full data logging was implemented.
Radar Vision developed and implemented a multi-lane over height sensing and warning system. The system is particularly designed for locations where one or more lanes of multi-lane traffic would pass under a height restricted bridge. At such locations it is not possible to detect height using cross laser beams because over height traffic is allowed in one lane, but not other lanes. It is often most effective to inform over height traffic where they still have the option to ovoid the restricted road. Our system consist of 3D laser scanning sensors and intelligent volumetric profiling software combined with programmable high brightness LED flashing units.
Radar Vision has implemented over 130 UHF wireless public transport signal pre-emption systems in Tshwane. The transmitter in the bus send the route origin, destination, turn, passenger count, route lateness/urgency, vehicle type and location information to the receiver at the intersection. The receiver acknowledge the request to the bus and this is logged in the bus. The receiver uses a complex rule-matrix to determine which simultaneous request is the most important and offer priority for that movement at the intersection.
Radar Vision has designed manufactured 7 fully NTCIP compliant VMS signs for the Johannesburg Roads Agency. The signs and controllers offer spread spectrum dimming, less than half the power consumption than any other VMS sign, fully automated asset management and a patent pending air circulation system using convection instead of fans to further reduce power consumption.
Availability of components for large systems is always a problem several years ofter such systems are installed. Radar Vision is often asked to interface into existing systems. Integration into existing undocumented systems require substantial engineering skill and testing ability. We are proud to have completed a few such projects where it seemed nearly impossible to do integration. ADDCO is a current manufacturer and supplier of LED panels, but many signs were supplied with 3rd party NTCIP controllers. Radar Vision has developed a substantially better NTCIP controller, interfacing directly to the lamp panels and simplifying the system architecture as well as increasing the flexibility and reliability.
A problem with pedestrians on railway tracks as well as vandalism of trackside boxes has prompted a new and innovative solution. The trackside boxes are protected by a low cost battery powered K-band radar sensor with wireless UHF communications. This wireless radar is the first of its kind and offer innovative signal processing and filtering between humans and trains on the track.
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