The sort of system is disclosed in Japanese Patent Laid Open Publication No. 58-193510, ItagPro amongst different sources. It is a further object of the current invention to supply such a sun tracking device can cut back the drive vitality requirements for driving the rotatable table to a particularly low degree, and might assist and drive the rotatable table with a simple construction. FIGS. 4(a) to 4(c) are illustrative drawings for describing the sun monitoring motion of the first preferred embodiment solar tracking device. FIG. 5 is a facet view thereof. FIGS. 6(a) to 6(c) are plan view for illustrating the solar monitoring action of the second most popular embodiment solar tracking device. FIG. 8 is a plan view thereof. FIG. 9 is a facet view thereof. FIG. 10 is a plan view displaying a photo voltaic energy generating system which includes a fifth most popular embodiment of the solar tracking device based on the present invention.

FIGS. 1 by way of four show a solar power generating system with incorporates the primary preferred embodiment of the solar tracking device of the present invention, which is constituted to be arranged on a body of water akin to a sea or a lake. This mounted shaft 1 is erected in a usually perpendicular orientation with its base finish buried within the lake or sea bottom, and is bolstered by guy wires three extending slantingly downwards from a mid level of the mounted shaft 1, whose other ends are engaged to the lake or sea bottom. 2 is internally geared up with a floatation pressure offering means which may embody a set of buoys or the like, or is externally supplied with a floatation drive providing means which may be a set of buoys made from urethane, rubber or the like and thereby is precipitated to float on the surface of the water in a generally horizontal orientation while being considerably freely rotatable in a horizontal plane in regards to the vertical central axis of the fastened shaft 1, ItagPro with a certain quantity of play of the rotatable desk 2 relative to the central axis of the fastened shaft 1 being allowed, both in the sideways direction, in the longitudinal direction and with respect to angular turning relative to the fixed shaft 1, so as to compensate for transitory undulations resembling waves of the water floor which cause wobbling of the rotatable desk 2 with respect to the fixed shaft 1 through a sure wobbling range.

2 is provided with a plurality of solar cell arrays 6 such as 6a, 6b and 6c that are used for power era, and further carries a pair of photo voltaic cell arrays 7 and ItagPro eight which serve as sensors, and wireless tag finder the circumference of the rotatable table 2 is further supplied with two monitoring drive mechermine, whereas on the other hand the rotational force exerted by the action of the screw 10b on the rotatable desk 2 is such as to turn the rotatable table 2 within the clockwise course as seen within the determine.