Systems and methods for sensor platform

Patent metadata

Field	Value
Publication number	US-10288458-B2
Application number	US-201615197654-A
Country	US
Kind code	B2
Filing date	Jun 29, 2016
Priority date	Jun 29, 2016
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

Apparatus are provided for a sensor platform. The sensor platform includes a sensor mount adapted to receive a sensing device, and a first articulation system that has a first rotational axis. The sensor platform includes a second articulation system that has a second rotational axis, and the second rotational axis is different than the first rotational axis. The sensor platform includes a base that supports the first articulation system, the second articulation system and the sensor mount. The first articulation system and the second articulation system are independently movable to define two degrees of freedom for positioning the sensor platform.

First claim

What is claimed is:

1. A sensor platform, comprising:
a sensor mount adapted to receive a sensing device;
a first articulation system that has a first rotational axis, the first articulation system including a first articulation body that is rotatable by a first drive system, the first articulation body having a first surface opposite a second surface, with the first surface coupled to the sensor mount and the second surface defining a counterbore, the first drive system including a first motor, a first spindle and a first drive ring coupled to the first articulation body, the first motor coupled about a perimeter of the first spindle to rotate the first spindle, the first spindle is integral with the first drive ring to rotate the first articulation body, the first drive ring has a first portion opposite a second portion, the first portion integral with the first spindle and the second portion is received within and fixedly coupled to the counterbore defined in the first articulation body;
a second articulation system that has a second rotational axis, the second rotational axis different than the first rotational axis, the second articulation system including a second articulation body that is movable by a second drive system, the second articulation body defining a second throughbore that extends through the second articulation body and including an annular flange that extends into the second throughbore, the first motor is coupled to the annular flange such that the first motor is disposed wholly within the second articulation body, the second articulation body having a third surface opposite a fourth surface, with the third surface positioned adjacent to the second surface of the first articulation body and the fourth surface defining a second counterbore, the second drive system including a second motor, a second spindle and a second drive ring coupled to the second articulation body, the second motor coupled about a perimeter of the second spindle to rotate the second spindle, the second spindle integral with the second drive ring to rotate the second articulation body, the second drive ring has a base portion opposite an engagement portion, the base portion integral with the second spindle and the engagement portion is received within and fixedly coupled to the second counterbore defined in the second articulation body; and
a base that supports the first articulation system, the second articulation system and the sensor mount,
wherein the first articulation system and the second articulation system are independently movable to define two degrees of freedom for positioning the sensor platform.

2. The sensor platform of claim 1 , wherein a portion of the second drive system is received within the base.

3. The sensor platform of claim 1 , wherein the first articulation body and the second articulation body are cylinders, the second surface of the first articulation body is a first slanted surface, the third surface of the second articulation body is a second slanted surface, and the first slanted surface of the first articulation body is positioned adjacent to the second slanted surface of the second articulation body.

4. The sensor platform of claim 2 , wherein the base includes a body that defines a third throughbore and includes a second annular flange that extends into the third throughbore, and the second motor is coupled to the second annular flange such that the second motor is disposed wholly within the body of the base.

5. The sensor platform of claim 1 , wherein the first rotational axis is angularly offset with respect to the second rotational axis.

6. The sensor platform of claim 1 , wherein the base is coupled to the second articulation system.

7. The sensor platform of claim 1 , wherein the first spindle defines a first throughbore and the sensor platform further comprises a flexible drive shaft that is coupled to the sensor mount and the base, the flexible drive shaft extends through the first throughbore of the first spindle and the flexible drive shaft inhibits motion in a third degree of freedom.

8. The sensor platform of claim 1 , further comprising the sensing device, and the base of the sensor platform is coupled to a vehicle.

9. An autonomous vehicle, comprising: a sensing device that observes a condition associated with the autonomous vehicle; and
a sensor platform coupled to the sensing device and the vehicle, the sensor platform including:
a sensor mount that receives the sensing device;
a first articulation system that has a first rotational axis, the first articulation system including a first articulation body that is rotatable by a first drive system, the first articulation body having a first surface opposite a second surface, with the first surface coupled to the sensor mount and the second surface defining a counterbore, the first drive system including a first motor, a first spindle and a first drive ring coupled to the first articulation body, the first motor coupled about a perimeter of the first spindle to rotate the first spindle, the first spindle is integral with the first drive ring to rotate the first articulation body, the first drive ring has a first portion opposite a second portion, the first portion integral with the first spindle and the second portion is received within and fixedly coupled to the counterbore defined in the first articulation body;
a second articulation system that has a second rotational axis, the second rotational axis different than the first rotational axis, the second articulation system including a second articulation body that is movable by a second drive system, the second articulation body defining a second throughbore that extends through the second articulation body and including an annular flange that extends into the second throughbore, the first motor is coupled to the annular flange such that the first motor is disposed wholly within the second articulation body, the second articulation body having a third surface opposite a fourth surface, with the third surface positioned adjacent to the second surface of the first articulation body and the fourth surface defining a second counterbore, the second drive system including a second motor, a second spindle and a second drive ring coupled to the second articulation body, the second motor coupled about a perimeter of the second spindle to rotate the second spindle, the second spindle integral with the second drive ring to rotate the second articulation body, the second drive ring has a base portion opposite an engagement portion, the base portion integral with the second spindle and the engagement portion is received within and fixedly coupled to the second counterbore defined in the second articulation body: and
a base that supports the first articulation system, the second articulation system and the sensor mount,
wherein the first articulation system and the second articulation system are independently movable to define two degrees of freedom for positioning the sensor platform, and the sensor platform extends along a longitudinal axis.

10. The autonomous vehicle of claim 9 , wherein the first articulation body and the second articulation body are cylinders that include a slanted surface, and the slanted surface of the first articulation body is positioned adjacent to the slanted surface of the second articulation body.

11. The autonomous vehicle of claim 9 , wherein the first rotational axis is transverse to the longitudinal axis and the second rotational axis is substantially parallel to the longitudinal axis.

12. The autonomous vehicle of claim 9 , wherein the sensor platform further comprises a plurality of the first articulation systems and a plural

Assignees

• Gm Global Tech Operations Llc

Inventors

• Ko Yung-Chang

Classifications

• G01S7/4817

  relating to scanning · CPC title

• G01S2013/9323

  Alternative operation using light waves · CPC title

• G01S7/4813

  Housing arrangements · CPC title

• G01S17/42

  Simultaneous measurement of distance and other co-ordinates (indirect measurement G01S17/46) · CPC title

• B60R11/04

  Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle · CPC title