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PIR for motion detection in the garden & notification

Discussion in 'Home Automation' started by ey143, 30 Sep 2015.

  1. sparkymarka

    sparkymarka

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    GJD detectors are far better then the ones Bernard's recommending ( been fitting them since the 80s) opal minis do have a tamper switch fitted so they can be wired to an alarm system
     
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  3. ey143

    ey143

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    Realistically how many people actually wire these light sensors to an alarm system and why would they want to do that because you surely going to get a lot of false triggers.
     
  4. sparkymarka

    sparkymarka

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    Lol ! You only wire in the tamper to stop the detectors getting messed with !
    Detectors like the dect 2 have tamper 2 relays and connections to the lighting controller but most people don't like spending on quality items just the Micky mouse cheap 240v pirs
     
  5. bernardgreen

    bernardgreen

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    My break beam sensor across the entrance to the yard activates lights in the house after dusk, this gives the appearance of someone being in the house and reacting to the outside lights coming on. It will ( when I have time to get round to it ) also create a date and time record to avoid the need to scan through hours of CCTV should there have been an incident when I was not there.
     
  6. u587162

    u587162

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    In layman terms can you please explain how you link that relay to some existing light switch to turn on the lights if it detects movement in the garden. Also how do you end up creating the timestamps that you talk about?
     
  7. sparkymarka

    sparkymarka

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    Beams ( voltage free relay )connected to a mains switching device ( elmdene do one ) you will need to use some form of photocell to control the lights for day/ night use , and a connection to the cctv dvr alarm input
    Optex used to sell an interswitch which had all of the above built in or a GJD multi switch 3000
     
  8. bernardgreen

    bernardgreen

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    In laymans' terms ( and hence not enough to tell you how to wire it )

    A contactor such as this

    https://www.tlc-direct.co.uk/Main_Index/Consumer_Units_Index/Wylex_Contactors/index.html

    is fitted in a suitable enclosure such as

    https://www.tlc-direct.co.uk/Products/WYESE2.html

    ( it could in a spare slot in the CU but not recommended )

    The coil terminals A1 A2 are connected to the lamp(s) that are directly controlled by the PIR(s)

    Contact terminals 1 and 2 connect to the alarm system input or what ever else the PIR(s) have to trigger.

    The time and date stamps will be created and stored in a micro-processor specific for the task (*). If you connect your PIR(s) to an alarm system that should as psrt of basic functinality log the times the PIR(s) operate.

    This is part of a bespoke system to detect and record on CCTV damage to my thatched roof from vehicles. By creating a log of hits and near misses ( proximity detection ) claims can be made and proven and owners of errant vehicles ( ignoring a width restriction ) can be informed with out the need to trawl through hours of CCTV recordings.
     
  9. sparkymarka

    sparkymarka

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    So what's stopping your lights from coming on and off in the day every time the break beam gets actived ? And what's controlling the lights on time ?
     
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  11. Twenty Four

    Twenty Four

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    I also use GJD PIRs with the Digizone. PIRs are on tamper and control the outside lights and send me an email through my DVR on activation. My cameras turn towards the activated PIR and record a time stamped event I can view on my phone when out and about or at home via the keyboard/monitors.
     
  12. sparkymarka

    sparkymarka

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    No comment from Bernard !
     
  13. Twenty Four

    Twenty Four

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    He's possibly enrolling on a PIR awareness course?
     
  14. sparkymarka

    sparkymarka

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  15. bernardgreen

    bernardgreen

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    A separate dawn to dusk sensor determines if it is dark enough to need the lights switched on.

    The bespoke lighting controller has inputs from the beam break and the dawn to dusk and makes the decision whether to turn the lights on and for how long.

    The lighting controller

    The beam break also operates a sounder ( if enabled ) to alert to customers going to the shop in the corner of my yard. ( for when the shop keeper is not there so I can deal with the customer )
     
  16. bernardgreen

    bernardgreen

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    I tend to be aware of PIRs when I have had a " I have seen the light " experience. :idea:
     
  17. Twenty Four

    Twenty Four

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    Clearly not, Bernard.
    Your comment on the Digizone is poor. It does all your "bespoke" box of tricks does and yes, a lot more in terms of controlling lighting, from 1 security light on to all the lights on for a user set specific length of time. The lights can be set to come on and go off via a time clock letting people think someone is at home. When the PIRs are triggered a volume controlled audible alarm sounds inside the home. At a glance it tells you which PIR is triggered and coloured lights on the keypad alert you too. You can manually turn on the security lights 1 by 1 from the keypad/s should you wish for them to override any time limits you've set. It can also be linked to a DVR output to control CCTV cameras and mark as an event for recording purposes, making viewing on arriving home or via Smartphone when you're out, very easy indeed.
    Oh, and it is off the shelf to purchase, with a warranty and for not a lot of money. That beats any Blue Peter set-up and any subsequent messing about. (Unless of course it is a passion).
     
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