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zardos

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Posts posted by zardos

    How do I connect to kill three winches via a FIA kill switch?????

    in International Forum

    Posted

    Probably the key spec for the isolator is :-

    Typical fault currents which can be ruptured
    (5ms time constant)
    Without Blowouts     1500A at 48V D.C.
    With Blowouts     2500A at 48V D.C.
    With Blowouts     1500A at 80V D.C.

    Given that Warn quote up to 500A as the max current from one of their XP motors, then with a twin motor winch that could mean having to break 1000A (Yes unlikely to ever be that high given alternator(s) supply and battery supply (though batteries usually have a high enough CCA to get there for short periods)).

    Also the current required is proportional to effort the winch is having to apply so the average is going to be lower.

    Also I have had an isolator fail because it was in a warm and dry battery box where the winch solenoids were OK, because the solenoids were in free air/swamp :-) which is better cooled than a closed battery box. This is because a lot of the current rating comes from the products ability to dissipate the heat generate by carrying large currents.

    How do I connect to kill three winches via a FIA kill switch?????

    in International Forum

    Posted

    Yes the new wording in 2017 specifically excludes that setup and forces people to use less safe setups (which is bad).
    But up to that change in 2017 I say people compiled (If a committee makes a decision but then does not act to change the regulations then I don't expect people to have to comply with that decision until the regulations were updated).

    The fact that the original and current regs still use poor vague terms is still bad.

    How do I connect to kill three winches via a FIA kill switch?????

    in International Forum

    Posted

    1 hour ago, Dave W said:

    Prior to the regulation change nobody complied with the regulation as it was worded, more the "spirit" of the regulation.

     

    I'm sorry to say that statement is not true, for many years my winches and car were all isolated by one FIA master switch and I guess most peoples setups were.
    The clarity on using solenoids helped this argument.

    As long as you powered your winch solenoids off the FIA master switch then all electric winches were isolated via one switch, as the nature of all switches are as electrical isolators.
    The regulations never stated the distance the isolator had to be from the battery positive terminals or the type.
    Adding an additional set of albright contactors as a solution is just moving the isolation point slightly closer to the battery and on most twin motor setups is lowering safety, as most people tend to only run 1 power cable to the winch contactors (usually 2) this means you are doubling the max possible load of this additional isolator (which can already be over it's rated current carrying capacity) to up to over 10 times it's rated capacity. Thus leading to possible failure of the isolator switch (usually in the non isolated position).

    Given problems of using under rated components I also ran backup manual isolators which had high current ratings.

    Alternatives to traditional leisure batteries?

    in International Forum

    Raspberry pi v3 dash display fit megasquirt

    in MS-Megasquirt/Jolt

    Posted

    I believe that the Raspberry Pi has a UART that is able to run as a serial port, so no need to Convert to and from USB
    Just configure the OS correctly (e.g. not to run a console on the serial) and connect to the right GPIO pins

    Note I've not done this myself but I'm sure a web search will tell you how.

    Edit: I guess that megasquirt is full RS232 and running at 12V which will need to be converted to 3.3V for a UART connection

    OT: CCTV. Monitoring / security systems

    in International Forum

    Posted

    1 hour ago, UdderlyOffroad said:

    Honestly, using storage on board the cameras kind of removes the point for me, I want to be able to control and record it from my home office.  Albeit it does simplify the wiring!

    This suggestion was only an interim setup to help ease in all this technology, with the end goal of multiple camera's with some NVR/NAS solution.
    It also reduces the initial cost and complexity of a multiple camera setup with NVR/NAS as this would be quite expensive, allowing some learning time before a big outlay and keeping the costs down if it was decided to no go forward with the project due to complexity.

    The onboard storage still allows remote control and viewing of the recording BUT yes if an intruder removes the camera then the evidence is gone. This would be fixed when the setup progresses to the NVR/NAS

    Even with a NAS setup my camera still has a memory card and is setup to swap recording to the memory card if the network ever fails.

    But saying that, that type of kit probably does simplify the setup of a multiple camera setup as it is all designed to work together and you would be able to get better support.

    BUT while the NVR can have take 2 hard drives, I'm have not looked in detail if it supports data redundancy as I would recommend having data redundancy, so it one hard drive fails then the NVR won't stop working and you still would have all the recordings.

    I would also recommend not buying IR lights from use IP as they are very expensive, you can get much cheaper lights from Ebay/Amazon

    I would also probably only buy 1 4mm camera to start with so you could move it around between the proposed install locations to see what field of view it gives as you might want a wider angle view or a more focused(zoomed) view in some locations.

    OT: CCTV. Monitoring / security systems

    in International Forum

    Posted

    I would start off small and simple with a 1 camera setup that you can expand to a multiple camera system while you gain understanding or ask professional advice like from the Use-IP forum I posted a link to.

    Some thing like a 2MP IP CCTV camera like
    https://www.use-ip.co.uk/vivotek-ib8369a-2mp-bullet-camera.html

    A POE injector to power it like
    https://www.use-ip.co.uk/tp-link-tl-poe10r-poe-splitter.html

    Use the internal storage feature, so you require a memory card

    https://www.use-ip.co.uk/verbatim-64gb-microsdxc-class-10-card-with-adapter.html

    Some length of CAT5E cable from powerline adaptor to camera

    On https://www.use-ip.co.uk/accessories/cables-and-plugs

    A Set of powerline adaptors to connect it to the rest of the network

    https://www.use-ip.co.uk/tp-link-tl-pa8030p-kit.html

    Indoors Mount 1 Powerline adaptor in remote location and connect to POE injector, connect power cable to POE injector, run CAT5E cable to camera (can be indoors or outdoors).

    Connect second powerline adaptor in to your home network router/adsl modem/(what ever you are running)

    Memory card in camera and configure camera to record to it and email you stills of motion events.

     

    Note I believe all this kit will work together as it is based on a simple version of what I run, but I take no responsibility if it does not.
    There will be a fair amount of RTFM to configure the camera.

    I have no connection to Use-IP except being a happy customer.

    This system can then be expanded to a multiple camera system with off camera storage and external infra red lights, etc

    Use-IP have the camera PDF manuals available online for you to read before hand

    Bearmach Dizzy Waterproofing Kit

    in International Forum

    Posted

    I had a few of then and they worked fairly well in medium deep water (but not over the dizzy deep) to keep the dizzy dry from splashes, but they did like to degrade over time and stick to the dizzy due to the heat under the bonnet of a V8.

    But you also needed good HT leads for medium deep water wading.

    OT: CCTV. Monitoring / security systems

    in International Forum

    Posted

    Zoneminder does not really have unlimited pre event record as you need to specify the number of pre event frames which should be no more than 50% the ring buffer which is limited by the size of shared memory available, while the shared memory size can be tweaked it is limited by the available memory.

    The other thing I found with Zoneminder and Synology's surveillance station, is that some of the work is done on the PC/NAS for things like motion detection and this can put a load on the system with many cameras, a lot of IP camera will do all this themselves and thus distribute the load and then the only need to have simple central storage (Windows file share from a PC or NAS)

    OT: CCTV. Monitoring / security systems

    in International Forum

    Posted

    1 hour ago, FridgeFreezer said:

    Anything IP and Chinese will secretly (or not so secretly) "phone home" to China when connected to your network. Also there's a higher-than-you'd-like chance it'll get hacked and used in a botnet or (worse for you) used as a backdoor into your home network.

    Analogue may be lower quality (although good analogue is better than bad IP) but is easier setup & lower risk.

    If you buy a no named cheap brand from flee bay and expose it to the internet then may be, but it is fairly easy to prevent that.

    I would argue that Analogue modern (using a hard drive not VHS tape) is a lot harder to setup because you have to worry about encoding rates and frame rates because the analogue to digital converter probably won't be able to handle all cameras at the usual max resolution of 480 × 576  @ 25 frames a second (which is probably why Cynic-al's video is at a standard CIF format).
    I tried a cheap analogue 8 camera system and even though it was designed to handle 8 cameras it could only handle one at max resolution and a decent frame rate (it could only handle 8 at QCIF and low frame rate)

    The analogue one i tried was so unstable I spent a lot more time fiddling with settings to try and get something useful and stable before I returned, IP CCTV was way much quicker to setup and a couple of mega pixel camera provided a much better result.

    OT: CCTV. Monitoring / security systems

    in International Forum

    Posted

    Not much has changed in the market other than the advent of "cloud" based solutions like the ring doorbell, but as broadband is poor that is out and that digital camera's have got higher resolutions and or cheaper prices and that storage hard drive/ flash memory has also got cheaper/bigger.

    I have an IP camera with a Synology NAS (but not with Surveillance Station) as the camera just needs remote storage.

    I don't think that there is an easy solution.

    Probably the easiest is a Network video Recorder /NAS with IP CCTV cameras and power over Ethernet.

    I've probably mention these points before but these are not changed by any advances in the market.
    1) Analog is far to low a definition to be any use other than a deterrent.
    2) Separate infra red lighting is really a must for outdoors / garages due to spiders and insects and birds being attracted (unless the area is permanently illuminated)
    3) Record on motion detection never provides enough pre/post event recording to make it useful, better to record 24/7 with a still image recorded on motion event (which you can use as a time marker to check the 24/7 recording with)

    New Def Neddy

    in International Forum

    Posted

    A quote from the BBC
    " Plans for a new off-road 4x4 in the spirit of Land Rover's discontinued Defender are being drawn up by Jim Ratcliffe, founder of manufacturing firm Ineos and one of the UK's richest men. "

    Somebody has decided not to wait for Land rover to announce a new version of the Defender

    • Like 1

    Bending perspex / polycarbonate / plastics

    in Tools and Fabrication

    Posted

    After watching too much of the Discovery channel may be a custom fish tank place could help in you cannot find a vacuum moulding place.
    As they work with custom shapes in acrylic
    e.g. http://www.aquariumgroup.co.uk/aquarium-gallery/custom-built-fish-tank/large-circular-acrylic-aquarium/

    must have been heat formed?

    http://www.acrylicaquariumsltd.co.uk/bespoke-acrylic-aquariums/

    " With one of the largest thermo forming ovens in Europe "

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