Speed measurement for in-door and off-highway vehicles, conveyor belts, material flow, open channel water surface flow ...

Speed Wedge MKII is a true-gound speed sensor and active motion detector for moving objects, based on Radar Doppler technology. Speed Wedge MKII deploys a Radar Frontend with planar antennas continously emitting electro­magnetic waves at 24 GHz. Due to the move­ment of the sensor or the object the frequency of the back-scattered waves are doppler shifted. Doppler signal is deployed for speed measurement.

The forward speed of e.g. an indoor transportation vehicle, fork lift, conveyor belt, off-highway vehicle, UGVs unmanned ground vehicles and rail applications is measured contactless thus unsusceptible to wheel / traction slip and slide, effective tire / wheel circum­ference and sinking in of the tire. For demanding applications in harsh environments Speed Wedge MKII is sealed and potted in a rugged encasing.

Speed Wedge MKII is available in variants with pulse, serial RS232 and CAN-Bus output. High speed up to 200 km/h is available.

Speed Wedge MKII data sheet

Data sheet for MSO Speed Wedge MKII speed sensor here and further details on request.

Speed Wedge MKII declaration of conformity

Declaration of conformity for Speed Wedge MKII

Speed Wedge MKII user manual

User manual for Speed Wedge MKII

Application Benefits

• Contactless untethered measure­ment of true-ground speed and distance travelled (odometry).
• Regardless of wheel/ traction slip and slide.
• Regardless of actual wheel/ tire circumference affected by e.g. wear, varying tire inflation pressure, sticky material building up.
• Regardless of sinking in of tires/ tracs on soft ground.
• Commercial-off-the-shelf (COTS) solution.
• One solution for all types of vehicles in diverse fleets.
• Favorable total cost of ownership compared to case-by-case retrofit of diverse existing fleets speed measurement solution e.g. CAN OBD, RPM sensors, Gearbox sensors ....
• OEM-agnostic solution.
• High dynamics and signal update rate.
• True speed over ground for traction, slip and breaking monitoring and control.
• Easy installation in parallel or perpendicular to the object/ surface being measured.
• Unsusceptible against varying properties of the ground surface.
• Pulse output according to DIN 9684/ ISO 11786 and serial RS232.
• Option: CAN-Bus interface.
• Speed range from below 0.8 km/h up to high speed of 200 km/h.
• Situational awareness : detection of stop and direction of movement (forward - backward).
• Basis for precise output application e.g. spraying, fertilizer application, seeding requiring forward speed & distance travelled.
• Applicable as a dead reckoning system component for inertial measurement units IMS in GPS/GNSS-denied/ constricted environments e.g. in-doors, tunnels, (underground) mining .....
• Assisting/ augmenting GNSS with independent true-gound-speed.
• Sensor fusion with GNSS and IMS improving positioning accuracy, quality and reliability.
• Assistance/ augmentation for in-door Real-Time Locating Systems (RTLS.)
• Improving safety, integrity and confidence in autonomous & safety solutions on and off the road, in buildings/ warehouses, in underground mining ...
• Independent true-ground-speed - backing for GNSS INS, positioning and navigation in mobile IoT.
• Integration in INS for improved immunity against GNSS jamming and spoofing attacks.
• Tire/ wheel slip & slide monitoring and closed loop control for vehicles.
• Tire/ wheel wear monitoring comparing to wheel ticks e.g. for mining dump trucks/ haulers, rail wagons/ locomotives.

Certificates