Dual use of safety-capable vehicle scanner for collaborative vehicle assembly and driving surveillance

Patent metadata

Field	Value
Publication number	US-11514684-B2
Application number	US-202016784701-A
Country	US
Kind code	B2
Filing date	Feb 7, 2020
Priority date	Feb 7, 2020
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A vehicle assembly system includes a vehicle chassis of a vehicle; at least one object sensor mounted to the vehicle chassis, where the at least one object sensor generates sensor data based on at least one detected object; a vehicle controller mounted to the vehicle chassis and configured to receive the sensor data from the at least one object sensor, where, during assembly, the vehicle controller is configured with production control software that enables the vehicle controller to generate production object data from the sensor data, monitor for a safety event based on the production object data, and generate a safety event signal in response to detecting the safety event; and a safety controller configured to receive the safety event signal from the vehicle controller and alter a movement of a surveilled machine corresponding to the safety event.

First claim

What is claimed is:

1. A vehicle assembly system, comprising:
a vehicle chassis of a vehicle to be assembled;
at least one object sensor mounted to the vehicle chassis, wherein the at least one object sensor generates sensor data based on at least one detected object;
a vehicle controller mounted to the vehicle chassis and configured to receive the sensor data from the at least one object sensor,
wherein, during assembly of the vehicle, the vehicle controller is configured with production control software that enables the vehicle controller to generate production object data from the sensor data, identify a surveilled machine configured to assemble a portion of the vehicle during assembly of the vehicle based on the production object data, monitor a position of the surveilled machine based on the production object data, monitor for a safety event involving the surveilled machine based on the production object data corresponding to another detected object and the monitored position of the surveilled machine relative to the other detected object, and generate a safety event signal in response to detecting the safety event; and
a safety controller configured to receive the safety event signal from the vehicle controller and alter a movement of the surveilled machine corresponding to the safety event,
wherein neither the surveilled machine nor the other detected object is the vehicle chassis or a vehicle component mechanically fixed to the vehicle chassis.

2. The vehicle assembly system of claim 1 , wherein the surveilled machine is an articulated robot arm.

3. The vehicle assembly system of claim 1 , wherein the at least one object sensor includes at least one interior object sensor configured to scan an interior environment of the vehicle chassis and at least one exterior object sensor configured to scan an exterior environment of the vehicle chassis.

4. The vehicle assembly system of claim 1 , wherein the vehicle controller is configured to detect whether the production object data includes a human object and detect the safety event on a condition that the vehicle controller detects the human object within a predetermined threshold distance from the surveilled machine.

5. The vehicle assembly system of claim 4 , wherein:
the vehicle controller is configured to determine a threat level of the safety event out of a plurality of threat levels based on the production object data,
the safety event signal includes threat level information corresponding to the determined threat level, and
the safety controller is configured to select one of a plurality of actions for altering the movement of the surveilled machine based on the threat level information.

6. The vehicle assembly system of claim 5 , wherein the plurality of threat levels include:
a first threat level as a result of the vehicle controller detecting the human object being within the predetermined threshold distance from the surveilled machine while the surveilled machine is moving away from the human object, and
a second threat level as a result of the vehicle controller detecting the human object being within the predetermined threshold distance from the surveilled machine while the surveilled machine is moving towards the human object.

7. A vehicle assembly system, comprising:
a vehicle chassis of a vehicle;
at least one object sensor mounted to the vehicle chassis, wherein the at least one object sensor generates sensor data based on at least one detected object;
a vehicle controller mounted to the vehicle chassis and configured to receive the sensor data from the at least one object sensor,
wherein, during assembly, the vehicle controller is configured with production control software that enables the vehicle controller to generate production object data from the sensor data, monitor for a safety event based on the production object data, and generate a safety event signal in response to detecting the safety event; and
a safety controller configured to receive the safety event signal from the vehicle controller and alter a movement of a surveilled machine corresponding to the safety event
wherein the vehicle controller is configured to detect whether the production object data includes a human object and detect the safety event on a condition that the vehicle controller detects the human object within a predetermined threshold distance from the surveilled machine,
wherein the vehicle controller is configured to determine a threat level of the safety event out of a plurality of threat levels based on the production object data,
wherein the safety event signal includes threat level information corresponding to the determined threat level,
wherein the safety controller is configured to select one of a plurality of actions for altering the movement of the surveilled machine based on the threat level information,
wherein the plurality of threat levels include:
a first threat level as a result of the vehicle controller detecting the human object being within the predetermined threshold distance from the surveilled machine while the surveilled machine is moving away from the human object, and
a second threat level as a result of the vehicle controller detecting the human object being within the predetermined threshold distance from the surveilled machine while the surveilled machine is moving towards the human object,
wherein in response to the threat level information indicating the first threat level, the safety controller is configured to slow down the movement of the surveilled machine, and
wherein in response to the threat level information indicating the second threat level, the safety controller is configured to stop the movement of the surveilled machine.

8. The vehicle assembly system of claim 1 , wherein:
the vehicle is assembled over a plurality of production stages,
the production control software comprises a plurality of profiles for detecting the safety event, each of the plurality of profiles being mapped to at least one of the plurality of production stages, and
the vehicle controller is configured to selectively activate and deactivate the plurality of profiles based on a current production stage to which an activated profile corresponds.

9. The vehicle assembly system of claim 8 , further comprising:
a production controller configured to track a current production stage of the vehicle and transmit production stage information to the vehicle controller, the production stage information indicating the current production stage.

10. The vehicle assembly system of claim 8 , wherein:
each of the plurality of profiles includes a different set of expected objects mounted to the vehicle chassis, and
the vehicle controller is configured to differentiate between an unexpected object and an expected object based on the activated profile for detecting the safety event.

11. The vehicle assembly system of claim 1 , wherein the vehicle is assembled over a plurality of production stages, the vehicle assembly system further comprises:
a software controller configured to update the production control software based on a current production stage of the plurality of production stages, wherein the updated production control software enables the vehicle controller to monitor for the safety event directed to the current production stage based on the production object data.

12. The vehicle assembly system of claim 1 , further comprising:
a software controller configured to reflash the vehicle controller with driving control software thereby overwriting the production control software, wherein the driving control software enables the vehicle controller to generate driving object data from the se

Assignees

• Infineon Technologies Austria Ag

Inventors

• Mueller Clemens
• Heinrich Harald

Classifications

• B62D65/00

  Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for · CPC title

• G06V20/58 Primary

  Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads · CPC title

• B60R2300/804

  for lane monitoring · CPC title

• Y02P90/02

  Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS] · CPC title

• B62D65/005 Primary

  Inspection and final control devices · CPC title