ITS Solutions

Queue Detect

MVIS’ new low power Queue Detect system uses a state of the art Frequency Modulated Continuous Wave Radar to monitor the road for slow moving traffic. Once slow moving traffic is detected the system communicates via the GPRS network with MVIS’ server, which in turn activates your desired message on any number of portable variable message signs (VMS). It can be used with both MVIS’ VMS-A and VMS-C products.

The speed at which the traffic triggers the message can be set remotely, as can the speed at which the message is cleared. The radar itself can either be mounted on an MVIS portable VMS, a Solar IP trailer or for long term deployment it can be mounted onto an existing column along with a small solar panel and battery.

Key Features

  • Low power unit for solar applications – typically <25mA
  • 6Vdc to 16Vdc supply
  • Compact unit for ease of installation
  • User adjustable parameters for optimum detection via GPRS connection
  • Range sensitivity adjustment
  • Speed output in kph or mph
  • Remote firmware updates
  • Direction and low temperature alerts
  • Password protected interface

Technical Specifications


  • Technology: FMCW Radar Technology
  • Detect Output: Quad-band GPRS 850/900/1800/1900 MHz
  • Radar Bandwidth: 15MHz
  • Mounting Height: 3-4m nominal
  • Product Mounting: Pan and tilt bracket (M10 fixing)
  • Housing Material: Black polycarbonate
  • Sealing: IP66
  • Operating Temp: -20ºC to +60ºC
  • Power: 150mW Typical 1.2W Peak
  • Approved to: ETSI EN 301 489, BS EN 50293 and AS/NZS 4268