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Figure 1 Proposed System 2.3.1 Benefits the system has over the systems already in use that were previously reviewed This system provides control to an entire home circuit and thus a collection of outlets rather than individual appliances. This makes the system more compact and gives a holistic lower level control of the electrical appliances. In simple terms, appliances are controlled in batches rather than individually. The system provides features that are directly intended at optimizing home energy usage. It incorporates an energy meter that is used to keep track of all energy used so that certain predetermined circuits will be switched off when a particular energy threshold is crossed in a month. The system also enables the user to automate on and off times of security lighting circuits so as to prevent power wastage. The system does not utilize sensors to carryout its tasks. Sensor based systems can
pose many challenges such as, limited area of use,
practical difficulties, Higher costs, longer payback and in many instances lower productivity. A control system's lifetime cost increases when sensors are added. The price of the sensors themselves comes first. Second, it needs experience to accurately
install and calibrate them, which costs time and money. Third, there is the continual cost of making sure that your sensor-control layout keeps up with the modifications made to the building. Rewiring and moving sensors are frequently needed to accomplish this.
8 Additionally our system unlike all that have been reviewed keeps track of all sensitive circuits i.e. circuits to which heavy and/or hazardous equipment will be connected by incorporating current meters. The user will get alerted if circuits draw heavy current fora given amount of time and they'll be able to turnoff these circuits in case anything is wrong.
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