RE: Merc field-tests wireless warnings

RE: Merc field-tests wireless warnings

Tuesday 5th December 2006

Merc field-tests wireless warnings

One day, vehicles will warn each other


It'll work in a big Benz first
It'll work in a big Benz first
In future, motorists will be able to detect danger even if the danger spot lies around the next bend or over the horizon. That's according to DaimlerChrysler, following field tests conducted at the conclusion of the "WILLWARN" (Wireless Local Danger Warning) European research project.

During the course of this test, five vehicles equipped with WLAN-based radio technology used the "Car-2-X Communication" system to radio details of critical situations detected by their on-board sensors – fog, black ice or obstacles on the road such as broken-down vehicles – to following cars. These early warnings enabled the drivers of the cars behind to prepare for the danger and adapt their speed in plenty of time.

This field test demonstrated that WLAN (Wireless Local Area Network) technology also allowed vehicles to communicate with each other. One of the key benefits is that expensive, fixed-installation transmitting and receiving devices are not required, since the cars themselves act as both transmitters and receivers. The cars establish an ad-hoc radio network and send any necessary warnings to all other vehicles within a radius of around 500 metres.

For vehicles outside of this radio range, the cars act as relays and pass on any warnings in much the same way as a relay runner would hand over a baton. No additional sensors are required to detect critical situations, since the necessary information is provided by the anti-lock braking system (ABS), the Electronic Stability Programme, the steering-angle sensors, the outside thermometer or the navigation system.

The DaimlerChrysler engineers incorporated the key groundwork laid during the course of the "FleetNet" project into the subsequent "NOW" (Network On Wheels) programme (a German cooperation project) and the current "WILLWARN" project.

Their aim was to use the experience gained to work together with partners from the automotive components and electronics industries in order to further develop and standardise this promising technology whilst also securing the rights to use the required frequencies. The specialists also supplied information to partners who joined the project at a later stage, realising that establishing a fully-functioning WLAN network that would benefit all road users meant co-operating with car manufacturers and the relevant authorities. After all, for an ad hoc radio network to be of any use, enough vehicles have to be equipped with the necessary technology.

Radio beacons at the side of the road are required in order to ensure that the first vehicles to be equipped with such a system benefit immediately. These stationary radio nodes could also be used to provide traffic control centres with additional and better information. However, direct contact with the Internet and its numerous fields of application is also possible. In addition to warning motorists in advance, the new radio network could therefore also be used to improve the flow of traffic: communicating cars could guide their occupants away from traffic congestion or even prevent tailbacks from occurring at all.

Sounds like it could be a good idea, especially if it warns of speed cameras (as if!), though it won't help those driving in traffic-free conditions. Expect to see it incorporated into a big Benz sometime in the next five years.

Author
Discussion

Xaero

Original Poster:

4,060 posts

216 months

Tuesday 5th December 2006
quotequote all
Sounds like interesting technology, incorporating communications into vehicles. Will take quite a while before it takes off I'd imagine, and would it require a subscription? if there is to be a internet connection onboard it may be necessary.

phisp

69 posts

228 months

Tuesday 5th December 2006
quotequote all
[QUOTE]Sounds like it could be a good idea, especially if it warns of speed cameras (as if)[/QUOTE]

It should make for the end of speed cameras - your car will be able to snitch on you immediately.

Will make a good method for tracking cars however.

corradoboy1983

100 posts

233 months

Tuesday 5th December 2006
quotequote all
Great idea! It's just an addition to safety, doesn't get in the way.

Doubt it will ever be on all cars, but certainly it means some people can benefit from helpful information (it's along the lines of the idea of traffic announcements on the radio really in terms of safety).

i imagine that if Merc want it to take off then they will probably either invest in repeaters for certain areas (cities such as London, Edinburgh etc), or perhaps make deals with local councils etc.

A lot of areas are stating to get wireless broadband now, and I suppose there may be a possiblity that these warning networks could be hung off the back of these transmitters...

anonymous-user

55 months

Tuesday 5th December 2006
quotequote all
This will be a brilliant way to get through traffic quickly, just arrive at your favourite roundabout with a big scandinavian flick and powerslide, your car will immediately warn all other cars approaching the roundabout that you are about to have an "accident" and stop them all, so the roundabout will be clear for you to exit in style and power off into the distance, cool! lol

Road_Terrorist

5,591 posts

243 months

Tuesday 5th December 2006
quotequote all
max_torque said:
This will be a brilliant way to get through traffic quickly, just arrive at your favourite roundabout with a big scandinavian flick and powerslide, your car will immediately warn all other cars approaching the roundabout that you are about to have an "accident" and stop them all, so the roundabout will be clear for you to exit in style and power off into the distance, cool! lol


Not on any Merc you wont, those kill joys wont let you turn off all the stability systems unless you put in some secret codes to the ECU, which they keep all to themselves grumpy

On the other hand you could just hack into the system and warn all cars of a road blockage on your favourite road and go for a hoon driving

B10

1,243 posts

268 months

Tuesday 5th December 2006
quotequote all
Can you also sent messages, like "you can get a bus through there" etc?

mybrainhurts

90,809 posts

256 months

Tuesday 5th December 2006
quotequote all
Or....

Coming Through, Coming Through.......MOVE

Jakdaw

291 posts

211 months

Tuesday 5th December 2006
quotequote all
What a truely awful idea... not open to abuse at all ;-) Obviously we'd all trust everyone we pass not to be transmitting enough rubbish to make this information utterly useless.

Mind you... I love the idea of being able to light up the dash on the next Merc that's hogging Lane 3 as I cruise past in Lane 1... I wonder what the warning would be, if it's beeping I should think you could have fantastic fun with the big Merc that's just trying it's fourth attempt at parallel parking...

John_S4x4

1,350 posts

258 months

Tuesday 5th December 2006
quotequote all
I can see the police have a WLAN sender in their patrol cars. The police ANPR computer in the cars spots a dodgy car (eg a getaway car from a robbery). The police follow the car and then send the wireless signal to the stolen Merc to stop the ignition/revs in stages untill the car stops.

It would be nicer if you had, say four recievers in each corner of the car. Then each of the recievers would then pick up another cars unique wireless ID signal, or ping. The onboard computer then works out the time difference in recieving each signal and would then be able to 'locate' the position of the other car. Hence you would then have your own onboard wireless 'Radar'. Alternativly, if the car is fitted with GPS SATNAV, you could send your position to other cars and vice versa.