RANCANG BANGUN SISTEM PENGUKURAN DAYA LISTRIK(KWH METER) PADA RUMAH TANGGA SECARA TELEMETRI DENGAN MENGGUNAKAN MIKROKONTROLER AT 89S51

Abstract

Has been designed and realized kwh measuring system by telemetry on the principle of microcontroler AT89S51. The system of data delivery pursuant the principle of ASK (Amplitude of Shift Keying). This Appliance besides exploited as watcher of measurement kwh also can be exploited to the wind speed measuremen, wind direction, the count of entery on the bus and others. The system consist of hardware and software. The hardware consist of station client covering that’s optocoupler tranducer circuit, microcontroler AT89S51 circuit, Liquid Crystal Display (LCD) circuit, TLP-434 module for transmitter and station center that’s RLP-434 module for receiver, microcontroler AT89S51 circuit. The Software in this system was built use by assembly programming Ianguage. The electric cost measure used to optokopler on the saucer kwh metre. Then optokopler rotation count of saucer, hereinafter count obtained by mikrokontroler AT89S51, result from rotation kwh metre of tranducer optocoupler make indicator inelectricity usude at one second and presented in Liquid Crystal Display the (LCD). Data sent from station client passing the transmitter of module TLP-434. Later, then data accepted at center station throught module RLP-43 receiver and transmitted from RS232 to serial port computer. Afterward verification process done that will be shown in computer monitor. Equipments can measure the expense used of energy listik converted by nominal rupiah. The measurement by each every one second once. Each Every rotation have the value equal to Rp.4,-. Maximal Distance data delivery 100 m outside unobstructed building and 30 m in building. Measurement of electricity used for the household.