Again, presence simulation might be a nice psychological sales trick used by manufacturers, but it is not an effective security measure. Even a casual intruder wouldn’t be deterred by something that simplistic. It also seems common for many to just ring the doorbell first and pretend to be Jehovah’s Witnesses, etc., if someone answers. Burglar-resistant windows are what actually help against break-ins. Nothing else.
For example, in our apartment, we have three windows in the living room with internal blinds, and there is simply no way to automate these blinds mathematically. Sometimes I want one area dark while the other two remain open. Sometimes the middle blind is lowered to prevent glare on the TV, but the other two stay open. When the TV is off, the middle blind doesn’t bother us either. Or with only moderate sunlight. Or at a different time of day, a different blind is adjusted. Sometimes a different blind is lowered because someone is playing on the floor there. Depending on whether we feel cold or warm, direct sunlight is either welcome or unwanted. This can even be pleasant in winter, but sometimes, even in February, it can be far too glaring.
If you only want to lower them in the evening and raise them in the morning, that can be automated. In our case, however, the position of the blinds depends on numerous factors that cannot be technically measured. Of course, this might change in a house, but I doubt it.
Therefore, it would hardly be possible for us to automate anything sensibly. But if it’s just about raising them in the morning and lowering them in the evening, that works without any problems. If that is the only requirement, then I would probably automate it too.
Sun and wind sensors, of course, are installed on the external roller shutters. That should be mandatory. We will probably also install a window contact on the terrace window’s roller shutter. But complete automation from A to Z seems too complicated for constant reprogramming and rethinking. Things never stay the same anyway.
For example, in our apartment, we have three windows in the living room with internal blinds, and there is simply no way to automate these blinds mathematically. Sometimes I want one area dark while the other two remain open. Sometimes the middle blind is lowered to prevent glare on the TV, but the other two stay open. When the TV is off, the middle blind doesn’t bother us either. Or with only moderate sunlight. Or at a different time of day, a different blind is adjusted. Sometimes a different blind is lowered because someone is playing on the floor there. Depending on whether we feel cold or warm, direct sunlight is either welcome or unwanted. This can even be pleasant in winter, but sometimes, even in February, it can be far too glaring.
If you only want to lower them in the evening and raise them in the morning, that can be automated. In our case, however, the position of the blinds depends on numerous factors that cannot be technically measured. Of course, this might change in a house, but I doubt it.
Therefore, it would hardly be possible for us to automate anything sensibly. But if it’s just about raising them in the morning and lowering them in the evening, that works without any problems. If that is the only requirement, then I would probably automate it too.
Sun and wind sensors, of course, are installed on the external roller shutters. That should be mandatory. We will probably also install a window contact on the terrace window’s roller shutter. But complete automation from A to Z seems too complicated for constant reprogramming and rethinking. Things never stay the same anyway.
Grym schrieb:
A common practice for many seems to be simply ringing the doorbell first and claiming to be Jehovah’s Witnesses or similar when someone answers.If that person is well-versed in the Bible, this could backfire badly ;-)
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Steffen8030 Apr 2017 15:23Grym schrieb:
Again, a presence simulation might be a clever psychological sales trick by manufacturers, but it is not a meaningful security measure.I have two police officers (one of them in investigative service) at the company, and their statements are clear: actual presence ranks number one in preventing break-ins, and obviously, a simulation is not enough. There is no known case here where a break-in occurred despite the simulation. The next point: a visible external alarm signal is also an effective deterrent. Houses with this feature are broken into much less frequently.
We go one step further... when our alarm goes off, all facades are illuminated with a total of 3000 watts (about 32000 lumens). In addition, there is 24-hour video surveillance from front and rear. The neighbors have to keep an eye on the sides 😉
The alarm system will also arm and disarm itself automatically. It arms as soon as the house detects everyone is asleep and disarms when the first person wakes up. Thanks to KNX, this can be implemented very nicely nowadays. Of course, this requires many motion detectors and giving up pets.
Steffen80 schrieb:
There is no known case here where a break-in occurred despite the alarm system being activated. Another point: a visible outdoor alarm signal is also an effective deterrent. These houses are broken into much less frequently.Even if by "outdoor signal" you probably mean the red rotating beacon: of course, there are also "outdoor signals" that burglars pay attention to. For example, an empty double carport with blinds and reading lights putting on a show is more likely to amuse them. In this respect, having a closed garage is basically part of the overall concept ;-)
Steffen80 schrieb:
The alarm system will also arm and disarm itself automatically. It arms as soon as the house detects that everyone is asleep, and disarms when the first person gets up. Thanks to KNX, this can be done nicely today. Of course, this requires many presence detectors and no pets.This restriction isn’t necessary: many pets nowadays carry an RFID chip. The home automation system can recognize that :-)
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Steffen80 schrieb:
We’re taking it one step further... if our alarm goes off, all the exterior walls light up with a total of 3000 watts (about 32000 lumens) 😉 In addition, there is 24-hour video surveillance from the front and back. The neighbors will have to watch out for the sides 😉 .If I’m so scared that I feel the need to install something like this, then something else must be wrong...
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Steffen801 May 2017 08:38That's right... everyone with a certain need for security has a problem. Understood. Thanks for the discussion.
(And 3 idiots even like this nonsense)
(And 3 idiots even like this nonsense)
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