Reflective vests and infrared touchless faucets

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Viewing 15 posts - 1 through 15 (of 37 total)
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  • #1100608
    trailrunner
    Participant

    I’ve developed IR sensors and have thought of something like this, but it’s a lot harder to actually make it work in the real world, and at an affordable price. Making a bike light emit IR wouldn’t be too hard, although it would have to be coded (pulsed in a certain pattern) to be able to pick it out, and it would be hard to make it work 360 degrees, again at an affordable price. These technical details are straightforward to overcome, but convincing car manufacturers to put in an IR sensor just to detect bikes would be impossible. One other technical limitation of this approach is that is generally does not provide range (distance), so I’m not sure how useful it would be to merely know that there is a cyclist somewhere in the field of view.

    BTW, contrary to what Wikipedia says, the sensor in the automatic faucet is not an active IR sensor, since “active” means that the sensor is emitting light. The sensors in faucets are very basic long-wave detectors with a simple algorithm to detect the presence of a warm object. It’s purely a passive system.

    #1100487
    jrenaut
    Participant

    A good chunk of bike safety advocates, myself included, consider this to be pretty equivalent to victim blaming. Drivers running over cyclists riding legally is a driver problem, not a cyclist problem. Shifting responsibility onto cyclists, requiring us to wear special gear to survive, is just one more way we absolve drivers of all responsibility for their actions.

    #1100489
    trailrunner
    Participant

    Yeah, when I typed my response that issue was sort of nagging me. Even I f I could build a sensor, and it was integrated into cars, then would cyclists be required to have the special light? And if a cyclist didn’t have it, would they be presumed to be more culpable if they were hit by a car equipped with the sensor?

    Sent from my iPhone using Tapatalk

    #1100490
    mstone
    Participant

    @jrenaut 193313 wrote:

    A good chunk of bike safety advocates, myself included, consider this to be pretty equivalent to victim blaming. Drivers running over cyclists riding legally is a driver problem, not a cyclist problem. Shifting responsibility onto cyclists, requiring us to wear special gear to survive, is just one more way we absolve drivers of all responsibility for their actions.

    Bikes come with reflectors; if people decide they’re too cool for the reflectors and rip them off…well, they’ve made their choice. Equipping cars with a strobe just outside the visual spectrum that would still reflect off those reflectors is within the realm of possibility, as is a sensor that looks for those reflections. In fact, I’d guess that existing LIDAR systems in autonomous vehicles already get a signal bloom when they hit a reflector. The question is what a car does with that data–there are a lot of reflective things that aren’t bikes (starting with every single highway sign). My hypothesis is that cyclist reflectivity doesn’t add much information above what can already be determined from a combination of RADAR & LIDAR, but maybe the AI system can classify a reflective moving object as less likely to be a blowing trash bag or somesuch? At any rate, until we only encounter RADAR equipped autonomous vehicles on the roads I’ll continue to recommend reflectors–especially pedal reflectors and wheel or tire reflectors–just to be more visible to old-fashioned humans.

    #1100609
    Judd
    Participant

    The Lumberjack Skunkworks is currently working on the development of an electronic warfare bike.

    Sent from my iPhone using Tapatalk

    #1100615
    ChristoB50
    Participant

    @Shep 193305 wrote:

    I’ve had opportunities to put on my reflective vest again. When taking care of pre-commute business in the locker room at work, it always give me a laugh when my reflective vest turns on all the touchless faucets as I walk by them, far from normal hand washing distance. (Anyone else have this experience?)

    Yes indeed! — I have that experience walking past the counter in our restrooms at work — I’m not nearly close enough to actually use the sink or counter; I’ve triggered it from 5 or 6 feet away…
    Though what I tend to activate more often with my vest is the touchless soap dispenser rather than the touchless faucet right next to it!

    #1100644
    baiskeli
    Participant

    @jrenaut 193313 wrote:

    A good chunk of bike safety advocates, myself included, consider this to be pretty equivalent to victim blaming. Drivers running over cyclists riding legally is a driver problem, not a cyclist problem. Shifting responsibility onto cyclists, requiring us to wear special gear to survive, is just one more way we absolve drivers of all responsibility for their actions.

    If a driver can’t see you in time to stop running over you, it’s not a driver problem. It doesn’t absolve ALL responsibility, but sometimes a driver isn’t responsible if they simply can’t see you in time.

    Safety equipment to make one visible is standard for everyone – cars, bikes and pedestrians. How often do we complain about ninjas?

    #1100665
    Steve O
    Participant

    @baiskeli 193388 wrote:

    If a driver can’t see you in time to stop running over you, it’s not a driver problem. It doesn’t absolve ALL responsibility, but sometimes a driver isn’t responsible if they simply can’t see you in time.

    I cannot possibly disagree with this more. If the person walking or biking is in an expected and legal place, like a sidewalk, bike lane or crosswalk, then it is absolutely the driver’s fault if they run that person over. A driver MUST be cognizant of the possibility of a vulnerable person being where they might be. If there is not enough time for the driver to react, then they are going too fast.

    #1100668
    jrenaut
    Participant

    There is a huge difference between riding around at night with no lights and being required to wear some special reflective gear to trigger some sensor we’re now going to require in cars.

    #1100672
    mstone
    Participant

    @Steve O 193392 wrote:

    I cannot possibly disagree with this more. If the person walking or biking is in an expected and legal place, like a sidewalk, bike lane or crosswalk, then it is absolutely the driver’s fault if they run that person over. A driver MUST be cognizant of the possibility of a vulnerable person being where they might be. If there is not enough time for the driver to react, then they are going too fast.

    Yes and no. It’s legal to be in the street, but it’s also required by law to have a reflector and/or lights.

    #1100675
    baiskeli
    Participant

    @Steve O 193392 wrote:

    I cannot possibly disagree with this more. If the person walking or biking is in an expected and legal place, like a sidewalk, bike lane or crosswalk, then it is absolutely the driver’s fault if they run that person over. A driver MUST be cognizant of the possibility of a vulnerable person being where they might be. If there is not enough time for the driver to react, then they are going too fast.

    If the person can’t be seen, he can’t be seen. If you go out in the street on a moonless night in all black, you could be completely invisible to drivers. It is absolutely a driver’s responsibility to drive carefully and slowly and look ahead, but it is possible for a driver to not see someone, at all, until it is too late. It is the same principle as a pedestrian walking in “disregard” of traffic, i.e. not giving a driver enough space to slow down to yield.

    If someone drove a car around at night with no lights on, we’d hold it against them too.

    Again, we complain about ninjas….

    #1100676
    baiskeli
    Participant

    @jrenaut 193395 wrote:

    There is a huge difference between riding around at night with no lights and being required to wear some special reflective gear to trigger some sensor we’re now going to require in cars.

    Okay, but I didn’t read your post as making such a distinction. I thought you were saying that a pedestrian or cyclist has no responsibility for being visible at night at all.

    #1100690
    Steve O
    Participant

    @baiskeli 193416 wrote:

    If the person can’t be seen, he can’t be seen. If you go out in the street on a moonless night in all black, you could be completely invisible to drivers. It is absolutely a driver’s responsibility to drive carefully and slowly and look ahead, but it is possible for a driver to not see someone, at all, until it is too late. It is the same principle as a pedestrian walking in “disregard” of traffic, i.e. not giving a driver enough space to slow down to yield.

    @jrenaut 193313 wrote:

    Drivers running over cyclists riding legally is a driver problem, not a cyclist problem.

    As mentioned, a bike requires lights and reflector to be legally ridden at night, so your strawman re: bikes is not applicable. If a driver runs over a cyclist who is riding legally because she does “not have time” to see him, she is driving too fast. It is the responsibility of the party with the 3000-pound weapon to make sure she does not kill vulnerable road users.

    @baiskeli 193417 wrote:

    I thought you were saying that a pedestrian… has no responsibility for being visible at night at all.

    For a pedestrian, though, there is no legal requirement to wear any particular clothing (although clothing of some kind is required I believe). If a person is walking in a place that is legal for them to walk and a driver runs over them, I consider that the driver’s fault. I am not a lawyer, so I don’t know how it would play out in US courts, but in many European countries, this is true. And how it ought to be.

    #1100696
    dasgeh
    Participant

    @baiskeli 193416 wrote:

    If the person can’t be seen, he can’t be seen. If you go out in the street on a moonless night in all black, you could be completely invisible to drivers. It is absolutely a driver’s responsibility to drive carefully and slowly and look ahead, but it is possible for a driver to not see someone, at all, until it is too late.

    Nope. It’s the driver’s responsibility to have lights on their car, and to drive in a manner in which they can see with said lights.

    @baiskeli 193416 wrote:

    If someone drove a car around at night with no lights on, we’d hold it against them too.

    Wait, so you know this…

    Also, per ACPD’s data analysis, victims in crashes (in Arlington at least) are not disproportionately wearing dark clothes at night.

    #1100703
    baiskeli
    Participant

    @Steve O 193423 wrote:

    As mentioned, a bike requires lights and reflector to be legally ridden at night, so your strawman re: bikes is not applicable.

    Not a strawman, just confusion. I was responding to the idea, real or imagined on my part, that someone believed that bikes should have absolutely no visibility requirements at all. If you agree that lights and reflectors are a good requirement, then we’re on the same page.

    @Steve O 193423 wrote:

    If a person is walking in a place that is legal for them to walk and a driver runs over them, I consider that the driver’s fault. “


    I would guess that if you went out wearing an all black suit and no lights or reflective gear and you were hit by a car, and the motorist said he/she never even saw you until you were on the windshield, the court would side with the driver. I don’t know what the law is though. This, I think, is similar to the principle of “disregard of traffic.” If you were to get out in front of a moving car in a way that gives the driver no chance to react to avoid you, either because you are not visible or too close (and perhaps both) the driver can’t be faulted (again, that’s me talking, not knowing the actual law).

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