Mercurial > hg > rsof
changeset 233:39a62a491a50
hacked for distribution
| author | Henry S. Thompson <ht@inf.ed.ac.uk> |
|---|---|
| date | Mon, 27 Mar 2023 21:47:53 +0100 |
| parents | 6849f3048ae1 |
| children | 5ab34d237fb8 147b958a3837 |
| files | MHMC/access.html MHMC/access.pdf |
| diffstat | 2 files changed, 159 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MHMC/access.html Mon Mar 27 21:47:53 2023 +0100 @@ -0,0 +1,159 @@ +<?xml version="1.0" encoding="US-ASCII"?> +<!DOCTYPE html + PUBLIC "-//HST//DTD XHTML5 1.0 Transitional//EN" "http://www.ltg.ed.ac.uk/~ht/xhtml5.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"><head><meta name="copyright" content="Copyright © 2023 <a href="http://www.ltg.ed.ac.uk/~ht/">Henry S. Thompson</a>&#160;<a href="http://creativecommons.org/licenses/by-sa/3.0/deed.en">CC-BY-SA</a>"/><meta http-equiv="Content-type" content="text/html; charset=utf-8"/><style type="text/css"> + ul.nolabel { margin: 0; margin-left: -2.5em} + ul.naked.nolabel {margin: 0; margin-left: 0; padding-left: 0} + ul.naked {margin-top: 0; margin-bottom: 0} + ul.cdefn {clear: both} + div.ndli { margin-bottom: 1ex } + div.hidden {display: none} + + p {margin: 1ex} + ul.naked > li { list-style-type: none; background: none; margin-left: 2em; +margin-bottom: 0 } + li ul.naked > li, dd ul.naked > li { list-style-type: none; background: none; margin-left: 0; +margin-bottom: 0; margin-top: 0 } + li.cdefni {} + li.cdefni span.cl {display: inline-block; vertical-align: bottom} + li.cdefni span.cr {display: inline-block; margin-left: 1em; vertical-align: bottom} + pre.code {display: inline-block} + blockquote.vanilla {display: inline-block; margin: 0; + border: solid 1px; background: rgb(238,234,230); + padding: .5em} + blockquote.vanilla ul.naked li {margin-left: 0 ! important;font-size: 100%} + ol ol ol, ol ol ol li {list-style-type: lower-roman} + ol ol, ol ol li {list-style-type: lower-alpha} + i i {font-style: normal} + li li {font-style: normal} + li ul li {font-style: normal} + li { line-height: 100%; margin-top: 0.3em} + .math {font-family: 'Arial Unicode MS', 'Lucida Sans Unicode', serif} + .sub {font-size: 80%; vertical-align: sub} + .termref {text-decoration: none; color: #606000} + .licence {margin-left: 1em; font-size: 70%} + .credits {margin-left: 1.5em; font-size: 70%} + .right {position: absolute} + .stackdown {vertical-align: text-top; margin-top: 0} + body {font-size: 12pt} + pre.numbered { + white-space: pre-wrap; + } + div.counter { + counter-reset: listing; + } + pre.numbered code { + counter-increment: listing; + } + pre.cl code::before { + content: "$ " ; + font-size: 80%; + width: 2em + } + pre.numbered code::before { + content: counter(listing) ". "; + display: inline-block; + font-size: 80%; + width: 3em; + padding-left: auto; + margin-left: auto; + text-align: right; + } + + /* content doesn't combine :-( */ + pre.numbered.cl code::before { + content: counter(listing) ". $ "; + display: inline-block; + font-size: 80%; + width: 3em; + padding-left: auto; + margin-left: auto; + text-align: right; + } + @page { size: A4 portrait; margin: 1.8cm; + orphans: 2; widows: 2;} + @media screen { + body {width: 20cm; margin-left: auto; margin-right: auto} + } + @media print { + body {font-size: 10pt} + h1, h2, h3, h4 {page-break-after: avoid} + } + pre.code {font-family: monospace; + font-weight: bold; + line-height: 120%; + padding-top: 0.2em; + padding-bottom: 0.2em; + padding-left: 1em; + padding-right: 1em; + border-style: solid; + border-left-width: 1em; + border-top-width: thin; + border-right-width: thin; + border-bottom-width: thin; + border-color: #95ABD0; + color: #00428C; + background-color: #E4E5E7; +} + pre {margin-left: 0em} + div.toc h2 {font-size: 120%; margin-top: 0em; margin-bottom: 0em} + div.toc h4 {font-size: 100%; margin-top: 0em; margin-bottom: 0em; + margin-left: 1em} + div.toc h1 {font-size: 140%; margin-bottom: 0em} + div.toc ul {margin-top: 1ex} + .byline {font-size: 120%} + div.figure {margin-left: 2em} + div.caption {font-style: italic; font-weight: bold; margin-top: 1em} + i i {font-style: normal} + img {border: 0} + .copyright {font-size: 70%} + .note {width: 20%; float: right; clear: right; margin-left: .5em} + </style><title>Access technology</title></head><body style="font-family: DejaVu Sans, Arial; background: rgb(254,250,246)"><div style="text-align: center" class="head"><h1>Access technology</h1><hr/><div class="byline">Henry S. Thompson</div><div class="byline">26 Mar 2023</div><div class="copyright">Copyright © 2023 <a href="http://www.ltg.ed.ac.uk/~ht/">Henry S. Thompson</a> <a href="http://creativecommons.org/licenses/by-sa/3.0/deed.en">CC-BY-SA</a></div></div><div class="body"><div><h2>1. Introduction</h2><p>I've had a quick look at the technology available to provide more +flexible access control into and within 7VT.</p><p>Per our previous discussion, it's worth distinguishing at least four +types of access we might consider (thanks to Majk for filling in details):</p><dl class=" "><dt><b><a name="Front_door">Front door</a></b></dt><dd> + <ul class="naked "><li><a name="Outer_door"><b>Outer door</b></a> +  Two yale locks</li><li><a name="Inner_door"><b>Inner door</b></a> +  Motorised. Currently push-panel activated in both directions, or just from inside + (locked from outside), or continuously open. Entryphone provides audio, but +no longer video, to remote panels on 1st (kitchen) and 2nd (outside the meeting +room) floors as well as a handset by the front desk, all of which can unlock +the inner door temporarily</li></ul> + </dd><dt><b><a name="Upper_Bow_stair_door">Upper Bow stair door</a></b></dt><dd>Not locked from inside, yale lock for +entry from the stair. Will trigger intruder alarm if it's enabled.</dd><dt><b><a name="Internal_doors">Internal doors</a></b></dt><dd> + <ul class="naked "><li><a name="Office"><b>Office</b></a> +  Yale lock</li><li><a name="Kitchen"><b>Kitchen</b></a> +  Yale lock</li><li><a name="Various_cupboards"><b>Various cupboards</b></a> +  Yale locks</li></ul> + </dd><dt><b><a name="Elevator">Elevator</a></b></dt><dd>Currently can be turned off by a switch in the plant +room, not currently locked.</dd></dl><p>(I've assumed we won't change the exit-only emergency nature of the +double-doors at the bottom of the main staircase.)</p><p>Most of the companies whose websites I've looked at are aimed at either +homeowners or businesses. Some of the business-orientated ones at least +mention small businesses, which is probably the closest we're going to get for +our needs.</p><p>Below are summaries of the offerings from a few of the companies I've +looked at. We would not deal directly with any of them, but would need to +contract with a local specialist firm for installation. I presume we've got +someone on the books for maintainance of the current entryphone/door-opener +etc., but we may need a different outfit for a new system.</p><p>I've attempted estimates of cost below, but they are <i>very</i> +much under-informed by hard facts. I found one quote from an installer, copied +below, but I think for what we want that's an under-estimate by at least a +factor of two.</p><blockquote class="vanilla"><div>"The average starting cost for an access control security system is around £500-£800 per door. The average starting price for installing an access control system is around £300. A typical maintenance visit would cost you around £75-£125. It would cost you on average £92 to have your access control system repaired."</div></blockquote></div><div><h2>2. Manufacturers</h2><div><h4>2.1. <a href="https://www.paxton-access.com/">Paxton</a></h4><p>Recommended by the team at Augustine United: "the Paxton Net2 system [is] +very popular and something of a market leader".</p><p>Two relevant devices: A standard entry-panel and a door-latch.</p><p>Both are activated by a proximity card or fob, and both can be installed +for standalone use, with a master card used to +enable access cards, or as part of a network-controlled system for much more sophisticated usage patterns.</p><blockquote class="vanilla"><div>"Staff and visitors are issued with electronic tokens instead of +keys. User tokens can be added to the system in seconds by presenting an enrolment card to the door/entry-panel. + + +"If someone loses their token, it can be simply barred from the system by presenting a shadow card to a reader."</div></blockquote><p>The entry-panel version would be the candidate for the front door, +replacing the existing panel.</p><p>The standalone system has three components: the entry panel, the +monitor(s) and the controller. I <i>assume</i> multiple monitors can be +used. It's not easy to find prices, but I am pretty confident that the parts +we need should be available for between £1000–2000. Installation would +be at least a person-day, I would guess, so could easily be £500 or more.</p><p>Upgrading to the next level, with full (PC and mobile app) software-based control of +token-holders, remote management, etc. would probably be as much again.</p><p>I <i>think</i> that only a further upgrade, and replacement of the +door panel, would get us to mobile-as-keycard functionality.</p></div><div><h4>2.2. [Failed to find another system I could match to our needs]</h4><p>I looked at approaching a dozen other websites, and they were all badly +designed, as well as being targeted at multi-tenant apartment buildings.</p></div></div><div><h2>3. Local installers</h2><div><h4>3.1. <a href="https://www.edengroup.co.uk/access-control/">Eden Group</a></h4><p>List Paxton as a brand they supply, "Paxton Gold" supplier. 25 mostly good Google +reviews, mostly aerials rather than security, +individuals not corporate...</p></div><div id="sss"><h4>3.2. <a name="sss"><a href="https://www.safesimplesecure.com/">Safe Simple +Secure</a> (S-S-S)</a></h4><p>"Paxton Gold" supplier, security only, 125 Google reviews, 5-star +overall, at least one regarding commercial premises.</p></div></div><div><h2>4. Next steps</h2><p>Get a recommendation for an installer from Paxton's list, from Paradise +Green (the folks at AU), failing which go with S-S-S.</p><p>Invite them around for a visit and discussion, leading to an RFQ.</p><p>Get a quote from one other outfit at least (but maybe not yet?).</p></div></div></body></html>