The Introduction

Now days, people do not know how much electrical energy use in a month because there is no system to alert them. So, with this Monthly Electric Bill Saving System (MEBSS) project, it will help people to know how much they use and also they can set the amount (RM) they want in electrical bill at the end of month. It has LCD that display everything such as energy usage in kWh unit and the bill need to pay in RM unit.  This system is already convert from energy usage kWh to a billing in ringgit Malaysia (RM) by refer a tariff domestic from TNB. They also can set the amount (RM) in this MEBS system. It will trip the current at main distribution board (MSB) in that house if the amount is reached. If it trip early of the month they can add another amount (RM) in MEBS System. With this system they can budget for electrical bill and save money.

For example:

 If Mr. A wants to pay only RM20 at the end of month, so Mr. A need to set RM20 in MEBSS. But if the MEBSS trip before end of the month, then Mr A need to add the amount at the MEBSS. Let say, Mr. A add another RM10, so, the calculation for that month is RM20 (early setting) + RM10 (after setting) = RM30. So Mr. A will know that he needs to pay RM30 for electrical bill.

This project is fully control by embedded system a program that program in microcontroller PIC16f877a. An embedded system is a special-purpose system in which the computer is completely program by or dedicated to the device or system it controls. Unlike a general-purpose computer, such as a personal computer, an embedded system performs one or a few predefined tasks, usually with very specific requirements. Since the system is dedicated to specific tasks, design engineers can optimize it, reducing the size and cost of the product. Embedded systems are often mass-produced, benefiting from economies of scale.