JPS57179683A - Measure-recorder for amount of electric power generation by natural forces - Google Patents

Abstract

PURPOSE:To obtain a simultaneous measurer-recorder of low power consumption and high precision, by making the device record periodically an integrated value obtained through A/D conversion of a voltage into which the solar radiation is transduced and an integrated value of a wind force energy in which the digital output of an anemometer is converted. CONSTITUTION:A solar radiation sensor 1 consists of solar cells and a voltage generated thereby is converted digitally by a V/F converter 2 and integrated by a counter 3, while a digital value obtained through conversion of the output of the anemometer of a wind force sensor 4 is integrated by a counter 5. The integrated values of the counters 3 and 5 are stored in a semiconductor memory 9 according to a program of PROM 7 through the intermediary of an interface 6 and CPU8. PROM7 is employed in time sharing by a switching circuit 10, while a control board 11 with switches reads the data of the memory 9, making a display unit 12 display the same. A timing circuit 13 employs a control signal from the board 11 and PROM7 in time sharing, while the circuit 10 is controlled by CPU8 and the circuit 13, and thus simultaneous measurement and recording for a long time can be performed.