초록 ▼

A method and apparatus for determining the length of a train utilizing received signal such as a reference signal from a global positioning system or the like is disclosed. A first receiver receives a signal, such as a reference signal from a global positioning system or the like, from which a first

A method and apparatus for determining the length of a train utilizing received signal such as a reference signal from a global positioning system or the like is disclosed. A first receiver receives a signal, such as a reference signal from a global positioning system or the like, from which a first position on a train may be determined. Similarly, a second receiver receives a signal from which a second position on the train may be determined. A processor, operatively coupled to the first and second receivers, determines the length of the train based on the first and second positions.

대표청구항 ▼

[ What is claimed is:] [18.] A method for determining a length of a train comprising the steps of:determining a first position on the train utilizing a reference signal received from a global positioning system;determining a second position on the train utilizing a reference signal received from a g

[ What is claimed is:] [18.] A method for determining a length of a train comprising the steps of:determining a first position on the train utilizing a reference signal received from a global positioning system;determining a second position on the train utilizing a reference signal received from a global positioning system;calculating the length of the train based on the first and second positions and recorded times of when the first and second positions are determined; andcomparing the first and second positions with position reference information stored in a database in order to determine the length of the train on a curved section of track.