If the weight that a particular area experienced was more than the set limit (the ‘trigger limit’ was set lower than the average human weight), then the doors would open.Ī person would have to stand or walk over the pressure-sensitive area due to its strategic placement (Image Source: Wikipedia) These mats detected changes in the weight/pressure on a specific area of the ground in front and behind the gates. In the 1960s, ‘control mats’ were used as sensors to detect the approach of pedestrians. Let’s look at the various kinds of sensors used in automatic doors.

Now, coming to modern-day automated door systems, most of them consist of sensors that help trigger the opening/closing of doors when required. Waiters could now move around despite their hands being engaged with plates and cups and no longer needed to awkwardly maneuver door handles! The hotel staff was thoroughly impressed with this marvel of engineering. They got their design patented and installed the first automatic door-opening system in a restaurant in Connecticut in the US. It was many centuries later, in 1931, when engineers Raymond and Roby came up with the idea for an automated door for general purposes. Impressed by this mechanism, Heron of Alexandria wanted to apply this technique of door opening beyond temples, but wasn’t really successful.

As a sign of the Gods being pleased with the priest and then opening the door in acknowledgment of his service! Such an arrangement in those times was seen as a miracle. When the priest would step forward and light the fire on the altar, the heat generated would kick the counterweights and pulley arrangement beneath it into action, which would subsequently open the door. Most of the automatic doors you see use sensors installed on the sides of the door to trigger the opening/closing of doors.Īncient Greek temple (Photo Credit : Unholy Vault Designs/Shutterstock)Īctually, he developed a clever mechanical arrangement beneath the altar placed in front of the giant temple door. Sensors do exactly what their names imply, they sense the stuff in their surroundings.

Sensors are the key part of this advanced technology. So, what just happened? Was it something supernatural? Not at all. How are you expected to open the door with both hands full? Fortunately, just as you get a bit closer to the exit, the sliding glass doors glide magically open for you to pass! You walk towards the exit door, but there’s a small problem. You check out at the counter, making your payment and taking the bags filled with groceries in both hands. You’ve loaded your trolley with all the groceries you wanted. Please visit the Automatic Sliding Doors Service & Repairs page for details about maintenance contract options.įor prompt service please Contact Us today.Most automatic doors use motion detection sensors or optical sensors, which are installed on the sides of the door, to trigger the opening/closing of doors. As well as breakdown service we also offer service contracts for regular maintenance and servicing of your automatic sliding doors. After hours service, including weekend and public holidays are charged at a higher rate than normal. Normal business hours are 8.00 am to 6.00 pm Monday to Friday. We provide prompt, cost effective service 24 hours a day 7 days a week. We service all brands of automatic door units including, Dorma, BWN, Access Entry, Assa Abloy Besam and a multitude of smaller brands. We service automatic doors in the greater Melbourne metropolitan area. Service is what our business is all about. We specialise in servicing, supply, installation and repairs of automatic sliding doors for shopping centres and other commercial premises. Repairs - Sales - Installation - 24 HoursĪDR Automatic Doors is an Australian company based in Melbourne. Automatic Sliding Doors Service Melbourne

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