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#11
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
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 |
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#12
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
On 1/17/2020 12:23 PM, 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. OK, I haven't noticed that yet. I'll watch for it. -- - Frank Krygowski |
#13
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
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. |
#14
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
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. -- Ted Heise West Lafayette, IN, USA |
#15
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
On 1/17/2020 4:04 PM, Ted Heise wrote:
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. Can you tell us the year and model of your car, and the year of your wife's Volvo? My five year old car has none of that, but it's a pretty low-end model. It didn't even come with an in-car entertainment screen. -- - Frank Krygowski |
#16
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Bicycles, pedestrians, and cars detected by microwave doppler radar.
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. -- Ted Heise West Lafayette, IN, USA 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. Andre Jute Nostalgic for the days when all a car was required to do was to track true and go fast, and American cars couldn't even track true but were great anyway |
#17
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
On Fri, 17 Jan 2020 16:35:38 -0500,
Frank Krygowski wrote: On 1/17/2020 4:04 PM, Ted Heise wrote: 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. Can you tell us the year and model of your car, and the year of your wife's Volvo? My five year old car has none of that, but it's a pretty low-end model. It didn't even come with an in-car entertainment screen. Fair question. I thought about putting that in, but decided to go for the quicker post. The Volvo is a 2015 S60 (so 5 years old), and mine is a 2019 GMC Acadia. I think the ~2012 Equinox I had before also came with CarPlay capability, but the newer GMC plays much better with the iPhone. -- Ted Heise West Lafayette, IN, USA |
#18
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
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. -- Ted Heise West Lafayette, IN, USA |
#19
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
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. |
#20
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Bicycles, pedestrians, and cars detected by microwave dopplerradar.
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. Of course, there would be objections from dedicated speeders... -- - Frank Krygowski |
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