Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 3rd November 2009, 09:24   #1
phenonix
Posted a thing or two
 
Rover 75 2001 Club Sedan V6 2.5

Join Date: Mar 2007
Location: Sydney
Posts: 1,458
Thanks: 18
Thanked 9 Times in 6 Posts
Default Proximity sensor

Think its possible to mod this for our cars?
Maybe in tandem with Paul's lazy locking?
phenonix is offline   Reply With Quote
Old 3rd November 2009, 19:54   #2
Departed
Retired
 
--

Join Date: Jan 2007
Location: --
Posts: 3,785
Thanks: 0
Thanked 4 Times in 4 Posts
Default

Sorry, is there meant to be a link, or just a general question?

If you are talking about a keyless entry system, then yes it's possible, but complex if you want it to work nicely.

The system needs to know if your key is nearby enough to allow the door to open. If it constantly transmits to the key to 'prod' it then the car battery wouldn't last long. Also if your key was left close to the car it would be replying all the time.

The way the commercial systems work is like this. You touch a sensor, usually built in the door handle. This triggers the system to send a fairly low power signal to the key (to make sure it only receives the signal if it's right by the car) and the key transmits back as though you had pressed the button. If the system sees a response from the 'right' key it will unlock.

You have to think of other things. What if you forget, and leave a key INSIDE the car. Then unless the system is clever enough, any old person can walk up and open the car.

So yes, possible, but to get a good system is going to be tricky.
Departed is offline   Reply With Quote
Old 3rd November 2009, 20:12   #3
phenonix
Posted a thing or two
 
Rover 75 2001 Club Sedan V6 2.5

Join Date: Mar 2007
Location: Sydney
Posts: 1,458
Thanks: 18
Thanked 9 Times in 6 Posts
Default

Would this be a good system?


http://cgi.ebay.com.au/ws/eBayISAPI....ht_1613wt_1167
phenonix is offline   Reply With Quote
Old 3rd November 2009, 21:10   #4
The_Monk
I really should get out more.......
 
The_Monk's Avatar
 
-

Join Date: Nov 2006
Location: -
Posts: 2,586
Thanks: 0
Thanked 3 Times in 2 Posts
Default

Quote:
Originally Posted by phenonix View Post
10m proximity would be a nightmare! There are loads of places in the house within 10m of the car on the drive, so the car wouldnt be secure if I left them on the dining room table for instance. Also it looks like you will still have a battery issue with the proximity sensor as it's always searching.
The_Monk is offline   Reply With Quote
Old 3rd November 2009, 21:12   #5
phenonix
Posted a thing or two
 
Rover 75 2001 Club Sedan V6 2.5

Join Date: Mar 2007
Location: Sydney
Posts: 1,458
Thanks: 18
Thanked 9 Times in 6 Posts
Default

Quote:
Originally Posted by The_Monk View Post
10m proximity would be a nightmare! There are loads of places in the house within 10m of the car on the drive, so the car wouldnt be secure if I left them on the dining room table for instance. Also it looks like you will still have a battery issue with the proximity sensor as it's always searching.


I agree, but i'm hoping someone here might have other options/suggestions, just putting it out there.
phenonix is offline   Reply With Quote
Old 3rd November 2009, 21:13   #6
Raistlin
Banned
 
75 CDT Connoisseur SE Auto

Join Date: Nov 2006
Location: Wolverhampton
Posts: 8,450
Thanks: 0
Thanked 3 Times in 3 Posts
Default

I don't like the sound of that Joe, to be honest.

If you're looking for a project, how about the mirrors which dip when you select reverse?
Raistlin is offline   Reply With Quote
Old 3rd November 2009, 21:52   #7
The_Monk
I really should get out more.......
 
The_Monk's Avatar
 
-

Join Date: Nov 2006
Location: -
Posts: 2,586
Thanks: 0
Thanked 3 Times in 2 Posts
Default

You could probably do a keyless ignition sequence. The car knows when the key is in the car as it will beep when you try and lock the car with the key fob sat in it. (I do it loads )

No idea how the ignition barrel works but you could probably wire in some toggle switches for positions 1 and 2 and the mighty "Start" button for 3 Might look a bit odd in a 75 though, a ZT might pull off the look.
The_Monk is offline   Reply With Quote
Old 3rd November 2009, 22:01   #8
Raistlin
Banned
 
75 CDT Connoisseur SE Auto

Join Date: Nov 2006
Location: Wolverhampton
Posts: 8,450
Thanks: 0
Thanked 3 Times in 3 Posts
Default

How about a damn big starting handle poking out of the front bumper?
Raistlin is offline   Reply With Quote
Old 3rd November 2009, 22:02   #9
Departed
Retired
 
--

Join Date: Jan 2007
Location: --
Posts: 3,785
Thanks: 0
Thanked 4 Times in 4 Posts
Default

Quote:
Originally Posted by The_Monk View Post
You could probably do a keyless ignition sequence. The car knows when the key is in the car as it will beep when you try and lock the car with the key fob sat in it. (I do it loads )

No idea how the ignition barrel works but you could probably wire in some toggle switches for positions 1 and 2 and the mighty "Start" button for 3 Might look a bit odd in a 75 though, a ZT might pull off the look.
Puzzled.

When you say sat in it, do you mean in the ignition switch, or just say on the seat?

If the latter, then not sure how it knows. The system is a one way, transmit from fob to car. The only two way takes place with the key in the ignition switch. So how can it know the key is in the car? I'll have to try it but it has me very puzzled.
Departed is offline   Reply With Quote
Old 3rd November 2009, 22:08   #10
The_Monk
I really should get out more.......
 
The_Monk's Avatar
 
-

Join Date: Nov 2006
Location: -
Posts: 2,586
Thanks: 0
Thanked 3 Times in 2 Posts
Default

Yes sat in the seat with key in hand, although it's usually by the lock rather than my pocket, like you would want in a keyless ignition. The range is probably a couiple of inches or something for the transponder to work. Puts the nail in the coffin for my idea unless you hide the receiver for the transponder in the seat!!
The_Monk is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 08:33.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd