All of these, and more, need to be addressed before a suitable solution can be suggested. I also recommend that sales and installation professionals who are interested in providing outdoor perimeter security attend accredited training classes to learn more about the different options and what to be aware of when offering outdoor solutions. Most of these are offered free of charge and many will earn the attendees CEU credits.
Larry Tracy, President/CEO, Aleph America : An outdoor photo beam installation must be analyzed to ensure that the proper product is being used. When using photo beams there are fundamental questions that need to be addressed:
a) Detection Distance - To determine which detection distance beam should be used.
b) Alignment procedures - Should be followed completely. Some 90% of photo beam false alarms are related to alignment.
c) Detection environment - What type of surroundings are within the detection pattern? Growing trees, shrubs, grass will affect an installation.
d) For multi-unit installations - Plan TX / RX placement carefully to ensure optimal wire usage & minimize any possibility for crosstalk.
Brady: Outdoor motion sensors, card access and other security integrated with alarm and video monitoring technology has become more cost-effective today. Once dealers complete a risk assessment how do they get the customer to put more emphasis on perimeter security when they have a limited amount of money to spend? Describe what you envision as a viable solution that covers interior and exterior security at the mid range system cost?
Evenson: Outdoor perimeter systems are really the only means available to provide any kind of an “early warning” for a property or facility. Even the best interior IDS and access control systems still potentially puts intruders only a window or a door away from the assets you are trying to protect.
From simple chain link to decorative iron configurations fencing, a modern update on the acoustical cable sensor can be an unobtrusive and very cost effective solution. Low profile, fiber optic cables serving as linear “distributed” sensors are now playing a major role in these designs as they are immune to lightning, simple to install and in some cases do not even require any outside electronics or power making for very low maintenance and support.
Buth: Discuss with your customer the fact that earlier detection can minimize potential theft, vandalism or physical harm to people and even help in the apprehension of suspects. Security design should take into account whether the building or facility is occupied or not during the period of security system use. A physical barrier such as a fence is very common in perimeter security. The heart of a system is its security or access control panel; one that offers programming features such as cross-zoning is very desirable. Incorporate multiple perimeter based sensors such as photoelectric beams and outdoor motion sensors and create a perimeter detection layer or layers. These perimeter devices can specifically report activity locally and via a central monitoring station after multiple devices are activated. Sensors connected to event driven CCTV cameras in combination with a networked multiplexer are an excellent way to record and report movement of people and to verify alarms remotely.
Interior building security consisting of door /window glass breakage and motion sensor devices along with access control products help deter and detect intruders. Perimeter sensors combined with interior devices will provide valuable information as to movement of persons both outside and inside a building. Security and access control panels can store information regarding individual alarm and supervisory events relating to intrusion as well as authorized users who may arm or disarm the system or gain access to a restricted area.
Simmons: When it comes to security, outdoor or otherwise, cost needs to be separated from value. We have always been great advocates of “Zone Protection”...layered security that starts at the farthest perimeter and works its way inward toward the ultimate asset, usually a building or such. By including outdoor perimeter security as part of a total solution, you not only add protection to outside assets, but greatly limit the opportunity for a breach of the interior system by providing early detection of an intruder. It also helps to eliminate situations that interior systems are unable or slow to detect.