Semiconductor device, control system and observation method

A control system comprising:

• a storage unit;
• a data obtaining unit that obtains a plurality of data items each indicating a result of observation from a plurality of radars for observing surroundings, converts the plurality of data items into data items in a polar coordinate format, and stores them in the storage unit;
• an axial position converting unit that performs conversion on the plurality of data items in the polar coordinate data format stored in the storage unit so that their axial positions will be the same, generates the plurality of data items on which axial position conversion has been performed, and stores them in the storage unit, wherein a memory space occupied in the storage unit by the plurality of data items on which axial position conversion has been performed corresponds to positions of the plurality of the radars in relation to a center point;
• a data superimposing unit that superimposes the plurality of data items on which the axial position conversion has been performed to generate superimposed data;
• a coordinate converting unit that converts the superimposed data into data in a Cartesian coordinate format;
• an evaluating unit that determines control contents of an object to be controlled according to the superimposed data in the Cartesian coordinate format;
• and
• a controlling unit that controls the object to be controlled according to the control contents.

An observation method comprising steps of:

• obtaining a plurality of data items using a semiconductor device, each data item indicating a result of observation from a plurality of radars for observing surroundings, converting the plurality of data items into data items in a polar coordinate format, and storing them in a storage unit;
• performing conversion, using the semiconductor device, on the plurality of data items in the polar coordinate data format stored in the storage unit so that their axial positions will be the same, generating the plurality of data items on which axial position conversion has been performed, and storing them in the storage unit, wherein a memory space occupied in the storage unit by the plurality of data items on which axial position conversion has been performed corresponds to positions of the plurality of the radars in relation to a center point;
• superimposing, using the semiconductor device, the plurality of data items on which the axial position conversion has been performed to generate superimposed data;
• and
• converting, using the semiconductor device, the superimposed data into data in a Cartesian coordinate format.