Distance sensor test system
A distance sensor and a measured object are positioned at a known distance from each other. A measured distance between the distance sensor and the measured object is obtained from the distance sensor, where the distance sensor uses a plurality of signals at a plurality of angles to generate the measured distance. The known distance and the measured distance are compared in order to test the distance sensor and produce a test result.
1. A system, comprising:
equipment that is configured to position a distance sensor and a measured object at a known distance from each other, wherein:
the distance sensor includes one or more of the following: a radar based distance sensor or a Lidar based distance sensor;
the measured object is a ground simulator;
the ground simulator is coupled to a ball bearing carriage and configured to move via the ball bearing carriage; and
positioning includes:
inserting at least one peg into at least one of a plurality of holes provided along a longitudinal axis of a guard rail and corresponding to known distances from the measured object, and
rolling the ball bearing carriage along the guide rail to a position where an edge of the ground simulator comes into contact with the at least one peg; and
a test controller that is configured to:
obtain, from the distance sensor, a measured distance between the distance sensor and the ground simulator included in the measured object, wherein:
the distance sensor transmits a plurality of signals at different angles to generate the measured distance; and
the plurality of signals includes one or more of the following: a plurality of radar signals or a plurality of Lidar signals; and
compare the known distance and the measured distance in order to test the distance sensor and produce a test result.
2. The system of claim 1 , wherein:
the measured distance is obtained from the distance sensor via a wireless channel.
3. The system of claim 1 , wherein the ground simulator includes:
a horizontal plane coupled to the ball bearing carriage, and
a vertical plane simulating a ground surface and configured to reflect signals back to the distance sensor.
4. A method, comprising:
positioning a distance sensor and a measured object at a known distance from each other, wherein:
the distance sensor includes one or more of the following: a radar based distance sensor or a Lidar based distance sensor;
the measured object is a ground simulator;
the ground simulator is coupled to a ball bearing carriage and configured to move via the ball bearing carriage; and
positioning includes:
inserting at least one peg into at least one of a plurality of holes provided along a longitudinal axis of a guard rail and corresponding to known distances from the measured object, and
rolling the ball bearing carriage along the guide rail to a position where an edge of the ground simulator comes into contact with the at least one peg; and
obtaining, from the distance sensor, a measured distance between the distance sensor and the ground simulator included in the measured object, wherein:
the distance sensor transmits a plurality of signals at different angles to generate the measured distance; and
the plurality of signals includes one or more of the following: a plurality of radar signals or a plurality of Lidar signals; and
comparing the known distance and the measured distance in order to test the distance sensor and produce a test result.
5. The method of claim 4 , wherein:
the measured distance is obtained from the distance sensor via a wireless channel.
6. A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
positioning a distance sensor and a measured object at a known distance from each other, wherein:
the distance sensor includes one or more of the following: a radar based distance sensor or a Lidar based distance sensor;
the measured object is a ground simulator;
the ground simulator is coupled to a ball bearing carriage and configured to move via the ball bearing carriage; and
positioning includes rolling the ball bearing carriage along the guide rail to a position where an edge of the ground simulator comes into contact with at least one peg, the at least one peg being provided in at least one of a plurality of holes along a longitudinal axis of a guard rail and corresponding to known distances from the measured object; and
obtaining, from the distance sensor, a measured distance between the distance sensor and the ground simulator included in the measured object, wherein:
the distance sensor transmits a plurality of signals at different angles to generate the measured distance; and
the plurality of signals includes one or more of the following: a plurality of radar signals or a plurality of Lidar signals; and
comparing the known distance and the measured distance in order to test the distance sensor and produce a test result.
7. The computer program product of claim 6 , wherein: the measured distance is obtained from the distance sensor via a wireless channel.