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Joined 1 year ago
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Cake day: June 1st, 2023

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  • As someone who is doing disaster response consulting for healthcare and public health: I fucking love you guys. You make my job sooo much easier.

    Seriously.

    The surveillance you folks do is pretty much indisputable and far more incorruptible compared to everything else we do, in healthcare especially.

    Very often you are my “discussion ending gun” when decision makers endlessly want me to prove their (flawed) point of view. A “nope, here are validated wastewater based numbers, you are wrong” is extremely satisfying sometimes.

    Thanks folks!












  • Paramedic and former ambulance calltaker: Children, especially that age, were by far my preferred callers. They usually are easy to calm down, they follow commands, they answer questions directly. (e.g. “Does the patient currently have trouble breathing?” - an adult answers "Well,he always had this slight wheezing since he caught the Vietnamese Bubblebuttvirus back in 1972, but it got better in 1992, and then he had…’ - a kid simply replies: “he is coughing a lot and breathing like he ran a lot”.).

    But back to topic: Same age as you were, probably 10. I was a huge fan of the local fire department back then. One day the adult son of my next door neighbour jumped off their roof,easily 8 to 10m. (Mix of suicide and drugs)

    I called the ambulance service, specifically asked them if they would send a helicopter (they frequently do around here), rode my bike to their usual landing spot and led the crew to the patient.

    …While three adults forgot to call the ambulance or called the police (different number here) or the local hospital (not helpful,they do not operate the ambulances here.

    Maybe,just maybe my career as a paramedic was predestined on this faithful day. (Guy made it,btw. But had more success a few years later)

    First aid courses at school do have an effect, I cannot recommend them enough,I have countless sucess stories I came in contact with over the years, including a group of three 12 year olds that resuscitated their teacher.


  • I have a very special set of songs for you:

    1. Hamster Dance
    2. Lama Song
    3. Scooter - How much is the fish
    4. Aqua - Barbie girl

    Now, listen,here is the important part: You do not play all four songs in a row,oh no. You play the first song in a loop for days, every time you go to the loo. Maybe even place a loudspeaker with a motion sensor there.

    Then you stop. And once they feel secure again, when they pull out their stupid phones again, then you strike again. With the same song!

    Then,after a while you stop again. Wait for a while. Of course, they have learned and then expect the previous song again. But nooo! Another one,not one bit better than the first one.

    Break their pooping souls this way!


  • The system does exactly that - But that is done automatically without intervention.

    The system recognises by checking on our devices and the presence detectors if we are at home. If we aren’t it reduces the temperature.* Then it looks into our calendars when we can be expected to be back and increases the temperature accordingly (additionally once we enter a certain Geofence).

    *:The overall heating effort is also based on the current and expected weather and sun-influx,as I have some rooms that basically heat themselves when the sun is out. The system is using that effort to adjust shades (e.g. it would allow a lower living room temperature in the morning after we left when it knows that there will likely be a sunny afternoon heating the room without the need to add external heat)

    This is what I mean with smart: A smart system is only smart if the user doesn’t have to fiddle around with it. Everything else is a remote.

    (My next goal is to add personalised heating. I want the system to recognise who is/comes home and adjust the temperature accordingly as my wife wants other temperatures as I do. O can do it room based, e.g. the kid’s room is adjusted according to the kid being there, but overall I am not quite there yet)



  • No,it isn’t. But no open and local solution will be - but you pay for that in terms of long term usability, resilience and data. It’s a choice a mature customer needs to make. Be cloud and manufacturer reliant,invest the time to do it properly or pay someone to do it.

    And KNX.org works for me(even tried it with a VPN to be sure) - and do you really think that a standard that is supported by the largest companies in the field(Siemens, ABB, Bosch, Schneider, etc.) and has multi-billion of installations in professional buildings alone per year is not for the long term?


  • The thing is: The standard itself is rather well designed and didn’t need too much updates (they just extended the possible packet contents in terms of possible parameters - which technically isn’t that necessary as you can fall back to ASCI).

    The last major updates were more towards extending functions (KNX over RF), connecting locations via IP tunnel, and securing the packets themselves (which is not really necessary for single household installations but VERY much for multi tennant installations).

    The major strength of KNX is the bus packet system itself - as the packets are standardized there are only a few attack avenues. An attacker could flood the bus with packets, try to update with fraudulent code (if none did put a password on it) or try to put fraudulent content in a module that accepts ASCI packets. The problem is the access - the attacker would need physical access or the IP gateway (if existing)would need to be unsecured towards the internet… In the end it is a fairly resilient piece of software.