A Cycling & bikes forum. CycleBanter.com

Go Back   Home » CycleBanter.com forum » rec.bicycles » Techniques
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Bicycles, pedestrians, and cars detected by microwave doppler radar.



 
 
Thread Tools Display Modes
  #21  
Old January 18th 20, 02:15 AM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 11,234
Default Bicycles, pedestrians, and cars detected by microwave dopplerradar.

On 1/17/2020 4:45 PM, Ted Heise wrote:
On Fri, 17 Jan 2020 13:42:52 -0800 (PST),
Andre Jute wrote:
On Friday, January 17, 2020 at 9:04:26 PM UTC, Ted Heise wrote:
On Fri, 17 Jan 2020 12:15:14 -0800,
sms wrote:
On 1/17/2020 8:10 AM, David Scheidt wrote:

snip

My car, and lots of newer cars, have blindspot sensors
that detect something in the 'blindspot' beside and
slightly behind the car. They light up signals on the
mirrors. If I turn the turn signal on, they flash (and
there's a beeper, if I try to change lanes, too). Both
the lighting up and flashing are visible to someone out
side the car. I see them come on other cars, when I ride
past them when they're stopped and I'm not.

In the past few weeks I've met with two large cloud service
providers regarding "smart city" deployment of IOT. One big
application for "smart city" is the use of various types of
sensors for traffic of all kinds, trucks, cars, bicycles,
and pedestrians. The privacy issue is one of the biggest
hurdles. Radar is less intrusive than cameras but cameras
have advantages. They will be used together.

Inductive loops are not going to be around for many more
years.

The camera usage is amazing. My car shows current speed limit
on the Car Play screen when I have Google mapping in use. It
is occasionally wrong; I'm pretty confident it comes over the
phone from some Google database.

On the other hand, my wife's Volvo shows the current speed
limit on the dashboard. It is always correct; I'm pretty
certain the value comes from a forward facing camera reading
the speed limit signs as they are encountered.


That's in any event a huge leap forward from when all Volvo had
(before any other cars) was a whiny nanny-voice telling you to
belt up.


I can totally relate. In addition to all the "safety" features
(like warnings when you cross a lane stripe without signalling, or
follow another vehicle too closely), my last car would lower the
fan speed when I received a call on the system. Called it the
nanny car.


It's said that for every room in heaven, there's one just
like it in hell for someone else. Automobiles as well.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


Ads
  #22  
Old January 18th 20, 04:02 AM posted to rec.bicycles.tech
news18
external usenet poster
 
Posts: 661
Default Bicycles, pedestrians, and cars detected by microwave doppler radar.

On Fri, 17 Jan 2020 19:14:51 -0500, Frank Krygowski wrote:

On 1/17/2020 6:07 PM, news18 wrote:
On Fri, 17 Jan 2020 21:04:23 +0000, Ted Heise wrote:


The camera usage is amazing. My car shows current speed limit on the
Car Play screen when I have Google mapping in use. It is occasionally
wrong; I'm pretty confident it comes over the phone from some Google
database.


It does. We noticed this years ago when there was a large scale change
throughout the state to expand town/city boundaries and often the
garmin device with its advisory voice was clearly wrong about when the
speed limit had changed.


Seems it would take only a small step in software to limit the speed to
what the sign showed.


If only. Shoud boost sales of stencils and spray cans,

Of course, there would be objections from dedicated speeders...


Naah, I just park a work truck in the street. that tends to slow them
down.(narrow street).

  #23  
Old January 18th 20, 03:41 PM posted to rec.bicycles.tech
Ted Heise
external usenet poster
 
Posts: 54
Default Bicycles, pedestrians, and cars detected by microwave dopplerradar.

On Fri, 17 Jan 2020 19:14:51 -0500,
Frank Krygowski wrote:
On 1/17/2020 6:07 PM, news18 wrote:
On Fri, 17 Jan 2020 21:04:23 +0000, Ted Heise wrote:

The camera usage is amazing. My car shows current speed
limit on the Car Play screen when I have Google mapping in
use. It is occasionally wrong; I'm pretty confident it comes
over the phone from some Google database.


It does. We noticed this years ago when there was a large
scale change throughout the state to expand town/city
boundaries and often the garmin device with its advisory voice
was clearly wrong about when the speed limit had changed.


Seems it would take only a small step in software to limit the
speed to what the sign showed.


Well, that would require some sort of vision system. The GPS
devices and smartphone apps don't typically have that capability.

--
Ted Heise West Lafayette, IN, USA
  #24  
Old January 18th 20, 11:52 PM posted to rec.bicycles.tech
Jeff Liebermann
external usenet poster
 
Posts: 3,194
Default Bicycles, pedestrians, and cars detected by microwave doppler radar.

On Fri, 17 Jan 2020 23:07:36 -0000 (UTC), news18
wrote:

On Fri, 17 Jan 2020 21:04:23 +0000, Ted Heise wrote:
The camera usage is amazing. My car shows current speed limit on the
Car Play screen when I have Google mapping in use. It is occasionally
wrong; I'm pretty confident it comes over the phone from some Google
database.


It does. We noticed this years ago when there was a large scale change
throughout the state to expand town/city boundaries and often the garmin
device with its advisory voice was clearly wrong about when the speed
limit had changed.


I don't think Google Maps devices allow editing the database to
correct speed limits. AFAIK, you send email to Google Feedback and
hope that someone eventually fixes the data:
"Speed Limit Alerts - Editing the Posted Speed on Google Maps"
https://mastrack.zendesk.com/hc/en-us/articles/206572427-Speed-Limit-Alerts-Editing-the-Posted-Speed
"Incorrect speed limits during navigation"
https://support.google.com/maps/thread/10569346

Garmin does allow changes:
"Correcting speed limits on Automotive devices"
https://support.garmin.com/en-US/?faq=Y06fiWRwZQ5zov3DrZ7we9
"Reporting Map Errors on Automotive Devices"
https://support.garmin.com/en-US/?faq=pJLZBzPen9A7OXw5vlRyu5

However, I don't use Garmin's maps and data, which I've replaced with
OpenStreetMap (and OpenCycleMap). If you want to make changes, just
edit the speed limit sign tags in the database:
https://wiki.openstreetmap.org/wiki/Speed_limits
https://wiki.openstreetmap.org/wiki/Key:maxspeed
http://mijndev.openstreetmap.nl/~peewee32/maxspeed/Maxspeed.htm

--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
  #25  
Old January 20th 20, 03:05 AM posted to rec.bicycles.tech
Andre Jute[_2_]
external usenet poster
 
Posts: 9,650
Default Bicycles, pedestrians, and cars detected by microwave doppler radar.

On Saturday, January 18, 2020 at 1:15:18 AM UTC, AMuzi wrote:
On 1/17/2020 4:45 PM, Ted Heise wrote:
On Fri, 17 Jan 2020 13:42:52 -0800 (PST),
Andre Jute wrote:
On Friday, January 17, 2020 at 9:04:26 PM UTC, Ted Heise wrote:
On Fri, 17 Jan 2020 12:15:14 -0800,
sms wrote:
On 1/17/2020 8:10 AM, David Scheidt wrote:

snip

My car, and lots of newer cars, have blindspot sensors
that detect something in the 'blindspot' beside and
slightly behind the car. They light up signals on the
mirrors. If I turn the turn signal on, they flash (and
there's a beeper, if I try to change lanes, too). Both
the lighting up and flashing are visible to someone out
side the car. I see them come on other cars, when I ride
past them when they're stopped and I'm not.

In the past few weeks I've met with two large cloud service
providers regarding "smart city" deployment of IOT. One big
application for "smart city" is the use of various types of
sensors for traffic of all kinds, trucks, cars, bicycles,
and pedestrians. The privacy issue is one of the biggest
hurdles. Radar is less intrusive than cameras but cameras
have advantages. They will be used together.

Inductive loops are not going to be around for many more
years.

The camera usage is amazing. My car shows current speed limit
on the Car Play screen when I have Google mapping in use. It
is occasionally wrong; I'm pretty confident it comes over the
phone from some Google database.

On the other hand, my wife's Volvo shows the current speed
limit on the dashboard. It is always correct; I'm pretty
certain the value comes from a forward facing camera reading
the speed limit signs as they are encountered.


That's in any event a huge leap forward from when all Volvo had
(before any other cars) was a whiny nanny-voice telling you to
belt up.


I can totally relate. In addition to all the "safety" features
(like warnings when you cross a lane stripe without signalling, or
follow another vehicle too closely), my last car would lower the
fan speed when I received a call on the system. Called it the
nanny car.


It's said that for every room in heaven, there's one just
like it in hell for someone else. Automobiles as well.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


Nah, the Volvo wasn't a bad car. It was its makers who had the ****poor attitude that they were entitled to tell everyone else how to behave because the buyers of their cars were, of course, stupid. It follows that a maker with such attitudes attracted the dullest and least exciting and often outright offensive owners. I didn't care about that: I just wanted a safe car to transport the child. It helped that I wasn't the intended driver. Example: While the Volvo was stationary at a T-junction in Cambridge (in England, not the location of that jumped-up missionary college in Massachusetts) a trailer-truck drove over the front of it. Result, STG pounds 150 damage to the Volvo, but the truck was immobilised by having it's fuel tank ripped out.

Andre Jute
I know who'll be driving a Trabant in Hell
  #26  
Old January 20th 20, 03:12 AM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 11,234
Default Bicycles, pedestrians, and cars detected by microwave doppler radar.

On 1/19/2020 8:05 PM, Andre Jute wrote:
On Saturday, January 18, 2020 at 1:15:18 AM UTC, AMuzi wrote:
On 1/17/2020 4:45 PM, Ted Heise wrote:
On Fri, 17 Jan 2020 13:42:52 -0800 (PST),
Andre Jute wrote:
On Friday, January 17, 2020 at 9:04:26 PM UTC, Ted Heise wrote:
On Fri, 17 Jan 2020 12:15:14 -0800,
sms wrote:
On 1/17/2020 8:10 AM, David Scheidt wrote:

snip

My car, and lots of newer cars, have blindspot sensors
that detect something in the 'blindspot' beside and
slightly behind the car. They light up signals on the
mirrors. If I turn the turn signal on, they flash (and
there's a beeper, if I try to change lanes, too). Both
the lighting up and flashing are visible to someone out
side the car. I see them come on other cars, when I ride
past them when they're stopped and I'm not.

In the past few weeks I've met with two large cloud service
providers regarding "smart city" deployment of IOT. One big
application for "smart city" is the use of various types of
sensors for traffic of all kinds, trucks, cars, bicycles,
and pedestrians. The privacy issue is one of the biggest
hurdles. Radar is less intrusive than cameras but cameras
have advantages. They will be used together.

Inductive loops are not going to be around for many more
years.

The camera usage is amazing. My car shows current speed limit
on the Car Play screen when I have Google mapping in use. It
is occasionally wrong; I'm pretty confident it comes over the
phone from some Google database.

On the other hand, my wife's Volvo shows the current speed
limit on the dashboard. It is always correct; I'm pretty
certain the value comes from a forward facing camera reading
the speed limit signs as they are encountered.

That's in any event a huge leap forward from when all Volvo had
(before any other cars) was a whiny nanny-voice telling you to
belt up.

I can totally relate. In addition to all the "safety" features
(like warnings when you cross a lane stripe without signalling, or
follow another vehicle too closely), my last car would lower the
fan speed when I received a call on the system. Called it the
nanny car.


It's said that for every room in heaven, there's one just
like it in hell for someone else. Automobiles as well.


Nah, the Volvo wasn't a bad car. It was its makers who had the ****poor attitude that they were entitled to tell everyone else how to behave because the buyers of their cars were, of course, stupid. It follows that a maker with such attitudes attracted the dullest and least exciting and often outright offensive owners. I didn't care about that: I just wanted a safe car to transport the child. It helped that I wasn't the intended driver. Example: While the Volvo was stationary at a T-junction in Cambridge (in England, not the location of that jumped-up missionary college in Massachusetts) a trailer-truck drove over the front of it. Result, STG pounds 150 damage to the Volvo, but the truck was immobilised by having it's fuel tank ripped out.
I know who'll be driving a Trabant in Hell



Excellent advertising idea!
"Volvo - buy one and make someone else drive it."

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #27  
Old January 20th 20, 06:16 PM posted to rec.bicycles.tech
Zen Cycle
external usenet poster
 
Posts: 190
Default Bicycles, pedestrians, and cars detected by microwave doppler radar.

On Friday, January 17, 2020 at 12:23:13 PM UTC-5, Ted Heise wrote:
On Fri, 17 Jan 2020 16:10:01 +0000 (UTC),
David Scheidt wrote:
Frank Krygowski wrote:

:I don't think that mirror blinker has anything to do with your
:being on a bicycle. That is, I don't think it means an
:electronic system has detected you. Many cars have lights in
:their side mirrors that blink in sync with the normal turn
:signals.

My car, and lots of newer cars, have blindspot sensors that
detect something in the 'blindspot' beside and slightly behind
the car. They light up signals on the mirrors. If I turn the
turn signal on, they flash (and there's a beeper, if I try to
change lanes, too). Both the lighting up and flashing are
visible to someone out side the car. I see them come on other
cars, when I ride past them when they're stopped and I'm not.


Yes, my experience is same as David's. The sensors seem pretty
sensitive, and I can easily imagine they would pick up a bike and
rider.

--
Ted Heise West Lafayette, IN, USA


Right, it's not a turn signal. One of the things I'm very cognizant of on my commutes is if a vehicle I'm passing has its directional on. I'm seeing the side mirror blink when the directional is not on.
 




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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cyclists 'almost as likely' to injure pedestrians as cars David Lang UK 1 September 4th 15 09:57 AM
Why Google's self-driving cars will be great for cyclists and pedestrians Alycidon UK 11 September 4th 15 06:30 AM
Rear facing radar to alert rider cars are following up 140m away.Really? James[_8_] Techniques 10 August 8th 15 01:36 PM
Most Dangerous: Cars, Dogs, Kids on Wheels, Other Bikers, Pedestrians? Ziactrice General 16 April 22nd 06 02:48 PM
Priority to be given to pedestrians and cyclists over cars? Richard Bates UK 23 October 31st 03 12:11 AM


All times are GMT +1. The time now is 01:18 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright 2004-2020 CycleBanter.com.
The comments are property of their posters.