If you have any questions, pls leave a message to me. Whatsapp: +8613751962625
The ADT Side Assist system is a technology designed to help drivers to change lanes safely.
Two Millimeter-wave radars, one on either side of the car, are mounted in the rear bumper.At speeds above 30km/h, these radars monitor the traffic in a zone which extends from around 70m behind the car to a point just ahead of the driver, and includes the so-called ‘blind-spot’.
However, The Side Assist does more than simply check for vehicles in this blind-spot. By measuring the distance and speed of vehicles approaching from behind, the ADT Side Assist is able to calculate whether or not a change of lane would be hazardous.
If there is no apparent intention by the driver to change lane, a light situated in the door mirror on the relevant side of the car is illuminated. The light provides information to the driver that there is a potential threat.
If the driver uses the direction indicator to signal that he intends to change lane, the warning light flashes more intensely, signifying to the driver that the manoeuvre he is about to make is potentially dangerous.
The system works when the car is overtaking as well as when it is being overtaken, to ensure that the car can be safely returned to its lane.
– 24GHz mircrowave sensing technology
– Detection range 3mx8m for vehicle/motorcycle in adjacent lane
– Visual warning via LED indicator or laser
– LED indicator can be individual or built in A pillar/side mirror
– Audible warning when turn signal is on
– Only warn when other vehicle is approaching to avoid false alarm
– With CAN interface, only work above certain speed, e.g., 10Kmh
– Work under adverse weather conditions
– Supplied side mirror with OEM quality
– Tailor-made sensor mounting brackets for different cars
– No change on vehicle appearance
– Door-opening Collision warning function optional
Advantage of 24 GHz Sensors
SRR sensors do not require long range capability. Hence, lower frequencies are preferred, enabling the use of available microwave components also used in the telecom industry. The 24 GHz technology seems to be the best compromise between today’s component costs and sensor size. Typically, SRR sensors do not measure the angle of detected objects and they have a very broad lateral coverage. Therefore, single antenna elements are sufficient. Only vertically the beams are directed to increase antenna gain and to minimize clutter effects from the road surface . SRR sensors are typically operated in pulsed mode (pulse, pulse Doppler) or in continuous wave mode (CW, FMCW, FSK, FMCW & FSK). Also coded radar with spread spectrum techniques (pulsed, CW, pseudo-noise) is a common technique. For instance, Delphi’s 17 GHz radar is a phase coded CW radar with a pseudo-noise (PN) BPSK modulation. The M/A-Com sensor is a pulsed radar. Hella is developing a 24 GHz UWB radar for short range applications and a narrowband FMCW radar operating in the license free 24 GHz ISM band with a maximum range of 70m . To measure not only targets’ distances but also their angular positions, several adjacent sensors can be used. Their measurements of the targets’ distances are fused in a trilateration algorithm yielding also the angular positions. Valeo-Raytheon is developing a multibeam phased array SRR that provides angular information itself.