function calculateDistance(rssi) { var txPower = -59 //hard coded power value. Usually ranges between -59 to -65 if (rssi == 0) { return -1.0; } var ratio = rssi*1.0/txPower; if (ratio < 1.0) { return Math.pow(ratio,10); } else { var distance = (0.89976)*Math.pow(ratio,7.7095) + 0.111; return distance; }}
Can i perform this ? |