The present invention discloses an automatic identification method and device for planetary seismograph azimuth angles based on a planetary sundial, comprising: obtaining geographical coordinates of a sundial needle tip and a sundial needle tip shadow relative to a planetary surface; determining a theoretical second solar ray elevation angle and a ray azimuth angle; constructing an objective function according to a first solar ray elevation angle and a ray azimuth angle corresponding to a time for obtaining the sundial needle tip shadow; and taking a minimum objective function as a target for solving a planetary seismograph azimuth angle. The present invention determines the planetary seismograph azimuth angle only by optical photos of a planetary rover or a lander without active vibration devices on supporting legs of the lander, thereby reducing system complexity and reducing weight, volume and power consumption brought by additional devices on the supporting legs of the lander.

The present invention discloses an automatic identification method and device for planetary seismograph azimuth angles based on a planetary sundial, comprising: obtaining geographical coordinates of a sundial needle tip and a sundial needle tip shadow relative to a planetary surface; determining a theoretical second solar ray elevation angle and a ray azimuth angle; constructing an objective function according to a first solar ray elevation angle and a ray azimuth angle corresponding to a time for obtaining the sundial needle tip shadow; and taking a minimum objective function as a target for solving a planetary seismograph azimuth angle. The present invention determines the planetary seismograph azimuth angle only by optical photos of a planetary rover or a lander without active vibration devices on supporting legs of the lander, thereby reducing system complexity and reducing weight, volume and power consumption brought by additional devices on the supporting legs of the lander.

The present invention discloses an automatic identification method and device for planetary seismograph azimuth angles based on a planetary sundial, comprising: obtaining geographical coordinates of a sundial needle tip and a sundial needle tip shadow relative to a planetary surface; determining a theoretical second solar ray elevation angle and a ray azimuth angle; constructing an objective function according to a first solar ray elevation angle and a ray azimuth angle corresponding to a time for obtaining the sundial needle tip shadow; and taking a minimum objective function as a target for solving a planetary seismograph azimuth angle. The present invention determines the planetary seismograph azimuth angle only by optical photos of a planetary rover or a lander without active vibration devices on supporting legs of the lander, thereby reducing system complexity and reducing weight, volume and power consumption brought by additional devices on the supporting legs of the lander.

A growing pane is made of a base, a plurality of triangular gnomons placed one section apart, and arranged at different positions which are suited for the stage it holds, a rod-like gnomon that provides support to the plurality of triangular gnomons for defining an intended use of telling time and the stainless glass creates a solid line of shadow that defines the colored reflection of the opaque design, wherein, the opaque design in the plurality of triangular gnomons projected to the surface when the sunlight falls over the clear pane of glass. The opaque design in the plurality of triangular gnomons changes the position on the surface when the position of the sun changes.

A growing pane is made of a base, a plurality of triangular gnomons placed one section apart, and arranged at different positions which are suited for the stage it holds, a rod-like gnomon that provides support to the plurality of triangular gnomons for defining an intended use of telling time and the stainless glass creates a solid line of shadow that defines the colored reflection of the opaque design, wherein, the opaque design in the plurality of triangular gnomons projected to the surface when the sunlight falls over the clear pane of glass. The opaque design in the plurality of triangular gnomons changes the position on the surface when the position of the sun changes.