Positioning apparatus and positioning method

A positioning apparatus, comprising:

• a plurality of antennas configured to receive signals from GPS satellites;
• positioning calculation devices configured to perform positioning for respective antennas, respectively, to obtain positioning results indicating positions of the plurality of antennas and accuracy indices indicating accuracies of the positioning results;
• a processor connected to the positioning calculation devices and configured to execute a program, and
• a memory in the processor to store the program which, when executed by the processor, performs processes of:
• performing first determination of determining whether or not accuracies indicated by the accuracy indices of two antennas out of the plurality of antennas are each higher than an accuracy indicated by a first threshold and second determination of determining whether or not a difference between a measured distance between the two antennas based on a difference between positioning results of the two antennas and a known distance between the two antennas is smaller than a second threshold, to thereby acquire a final positioning result and a usability flag serving as a reliability index in accordance with results of the first determination and the second determination;
• and
• generating positioning information for controlling a human interface configured to notify a result in accordance with the final positioning result and the usability flag.

A positioning method, comprising:

• performing positioning for a plurality of antennas, respectively, to obtain positioning results indicating positions of the plurality of antennas and accuracy indices indicating accuracies of the positioning results, the plurality of antennas for receiving signals from GPS satellites;
• performing first determination of determining whether or not accuracies indicated by the accuracy indices of two antennas out of the plurality of antennas are each higher than an accuracy indicated by a first threshold and second determination of determining whether or not a difference between a measured distance between the two antennas based on a difference between positioning results of the two antennas and a known distance between the two antennas is smaller than a second threshold, to thereby acquire a final positioning result and a usability flag serving as a reliability index in accordance with results of the first determination and the second determination;
• and
• generating positioning information for controlling a human interface for notify a result in accordance with the final positioning result and the usability flag, wherein processes of the method are performed by a processor.