The Advantages Of An Access Control System
November 9, 2010 by Jason58 · Leave a Comment
Access control to business premises, schools, nursing homes and other buildings is a serious issue in our society. For organisations like these, there is a need to control casual entry to a premises without impeding those going about their daily business. One answer is to install a keyless entry system or access control system.
An access control system is an electronic system which uses remote keys or tags to release door locks. The tag, which is carried or worn by a user, is presented in the vicinity of a reader located adjacent to a door and communicates with that reader using encoded radio waves. This eliminates the need for any contact. Once a tag is recognised by the reader, a signal is transmitted to release an electro magnet on the door lock.
Each tag has a unique number stored on an electronic chip encased in plastic. There is no power source (battery) within the tag. The reader is basically an antenna which is hard wired to a control unit. The reader on the door is powered from the mains supply and it emits radio waves via its antenna.
The tag also has an antenna which receives the radio waves from the reader. When the tag is within approximately 50mm (2″) of the transmitter, the power contained within the transmitted radio waves is sufficient to induce a small current in the chip contained in the tag. This current powers and operates the chip which is programmed to modify the received signal and send the modified encoded radio waves back to the control unit.
An access control system has the following benefits:
- Contactless release of locking mechanism
- One Tag opens all assigned doors allowing easy configuration of different access rights to groups or individuals
- Allows simple access control of visitors, employees and the general public throughout a site
- A simple operation removes access rights from a tag if an employee leaves with it or loses it
- No numbers to remember
- Simple to set up and change configuration as required
- Low maintenance
- Easy to expand access control system if requirements change
- No multiple keys or numbers required
- Vandal proof
- Extremely fast lock release
When considering the purchase and installation of an access control system, it is important to use a professional installation company that is qualified to carry out the work.
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Simple steps to powerfull golf swing
The first step to a powerfull golf swing, is the downswing that will provide all the power necessary for you to hit accurate golf shots, that land in the fairway and on the green.The golf swing motion, is not as simple as it looks. The backswing is important for you, as it will get your body in the proper position to deliver the club face to the back of the golf ball.
The downswing is of equal importantance for you to know about because it is the downswing motion, that will deliver power to your golf shots. Beginning golfers, with practice, do manage to get their backswing correct, yet when it comes to the downswing, fail dismally. One of the reasons for that, during the downswing, golfers are expected to release the power and energy built up in the backswing motion, which beginner golfers have difficulty making the transition from backswing to downswing..
The first steps in starting your downswing,is the rotation of the hips. Though, in the process of releasing all the built-up energy, the arms and shoulders need to be uncoiled later.When you want to make a full, controlled golf swing, you have to understand how your body should move. There is of course a right way and a wrong way, getting your body to move in the correct motion is one of the most important parts of the golf swing. To learn more about your body motion, and other aspects of the golf swing check out, online golf lessons
The proper golf swing motion will have you shifting the weight from right foot to left foot. This is a crucial part of the downswing, which many novice golfers try to force at first, but with practice and the proper golf swing drills,you can make this movement unconsciously.To uncoil the body for a release of energy,your wrists should be in a slightly bent position. Remember, how you uncock your wrists will go on to signal how much power you are able to transmit to your golf shots. The later you are able to release the wrists, the better are your chances of achieving a golf swing release for maximum power in a golf swing
