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Solutions for Security
Roof Access Security System
Roof access security was not regarded as a must before, but gradually, it has been considered as an important application since it"s dangerous if someone gets in the roof and breaks some utilities or contaminates the water in the water tower. It threatens the safety and assets of the residents directly. For example, in Singapore, it happened that someone broke in the roof on purpose and contaminated the water tower; therefore, roof access security system has been developed to prevent from this kind of situation. However, the fixed line solution is difficult to meet the customer"s needs because it takes too much time, cost, and effort to install; besides, the fixed line is very easy to destroy. Moreover, the traditional security
equipments on the market are complicated and numerous, and normally it is necessary to integrate several various equipments in one system. This will also cost users a lot. Furthermore, the password of the keypad which is often adapted in security system is easy to be broken into.

In this reference,wireless module is installed on the roof to link with magnetic reed, siren, electric door lock, and LED light through TTL; the users use their own mobile phone numbers as their ID and call wireless module to activate or deactivate the system. When wireless moduel receives the call, it will detect if the user is authorized or not. Once unauthorized user breaks in illegally, wireless module will send SMS & Data alert to related personnel as well as control center in real
time through GSM/GPRS network in order to manage the event. The whole system doesn"t need alarm panel, keypad, alarm receiver, etc., and can be set up in very short time.
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