public void decoder(int[] octets_data){
		if (taille == 7){
			
			//System.out.println("DEplacement1 cr��");
			
			
			positionXhigh = octets_data[0];
			positionXlow = octets_data[1];
			positionX = ((positionXhigh<<8) + positionXlow);
			positionYhigh = octets_data[2];
			positionYlow = octets_data[4];
			positionY = ((positionYhigh<<8) + positionYlow);
//			anglehigh = octets_data[5];
//			anglelow = octets_data[6];
//			pos_speciale = (octets_data[7] & 0xF0) >>> 4;
//			pos_speciale_att = (octets_data[7] & 0x8) >>> 3;
//			SOS_int = (octets_data[7] & 0x4) >>> 2;	
			
		}
		else {
			System.out.println("taille != 7");
		}
	}