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#21
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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 |
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#22
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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
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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
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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
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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
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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
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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. |
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