Applications of a plurality of safety laser scanners combined with a camera or mobile computer

• US 10,679,504 B2
• Filed: 11/21/2017
• Issued: 06/09/2020
• Est. Priority Date: 11/21/2016
• Status: Active Grant

• Current Assignee: Datalogic IP Tech S.r.l. (Datalogic S.p.A.)
• Original Assignee: Datalogic IP Tech S.r.l. (Datalogic S.p.A.)
• Inventors: Alessi, Nicola, Lorenzoni, Enrico, Zanetta, Paolo, Girotti, Lorenzo, Pattini, Luca
• Primary Examiner(s): Camby, Richard M
• Application Number:
  US15/820,162
• Publication Number:
  US 20180144638A1
• Time in Patent Office: 931 Days
• Field of Search: None
• CPC Class Codes: B60Q 1/26 the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
• CPC Class Codes: B60Q 1/525 automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
• CPC Class Codes: B60Q 5/006 indicating risk of collision between vehicles or with pedestrians
• CPC Class Codes: G05D 1/0088 characterized by the autonomous decision making process, e.g. artificial intelligence, predefined behaviours using knowledge based models G06N5/00
• CPC Class Codes: G05D 1/0214 in accordance with safety or protection criteria, e.g. avoiding hazardous areas monitoring the location of vehicles within a certain area, e.g. forbidden or allowed areas, in traffic control systems for road vehicles G08G1/13
• CPC Class Codes: G06V 20/20 in augmented reality scenes
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes
• CPC Class Codes: H04N 5/33 Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20

Abstract

Various embodiments of the invention are implemented with a mobile camera and safety laser scanner. A mobile computer can be used to show a visible infrared beam on the display of the mobile computer. The mobile computer can function as a safety tool to identify regions or locations where a laser beam might penetrate. The mobile computer can determine if the laser beam has penetrated a safety region or zone. Sensors can be used to determine when a laser beam may become dangerously close to an operator, especially with the use of automated guided vehicle that is moving around and has a scanning laser.

Claims

1. A system for protecting an intruder from a scanning laser of an automated guided vehicle (AGV) that moves around a location, comprising:

(a) a plurality of sensors are placed throughout the location, wherein a sensor of the plurality of sensors monitors a unique area within the location;

(b) the sensor connects wirelessly to the AGV when the AGV enters a certain range close the unique area, wherein the sensor extends sensor capabilities to the AGV, wherein the AGV has the sensor capabilities so long as the Received Signal Strength Indication (RSSI) between the sensor and the AGV exceed a predetermined threshold, and wherein the AGV monitors its surrounding area while the sensor monitors the unique area while the sensor and the AGV are wirelessly connected;

(c) the AGV disconnects from the sensor when the AGV moves away from the unique area and the RSSI falls below the predetermined threshold; and

(d) the AGV moves and connects to another sensor in accordance with step (b).

2. The system of claim 1, further comprising the sensor issues a warning to the AGV when the intruder is in the unique area, wherein the AGV maneuvers to avoid the intruder.

3. The system of claim 2, wherein the AGV maneuvers comprises the AGV decelerates, changes a trajectory, or alters a route.

4. The system of claim 2, wherein the sensor sends a position of the intruder to the AGV.

5. The system of claim 2, further comprising the sensor evaluates a first motion trajectory of the intruder and a second motion trajectory of the AGV to calculate a potential collision path, wherein the sensor issues a warning to the AGV if the intruder and the AGV are on a collision path.

6. The system of claim 1, further comprising the sensor issues a warning to the intruder, provided the intruder is equipped with a device to receive the warning.

7. The system of claim 6, wherein the device is at least a mobile computer, a pager, or an alarm device that connects wirelessly to the sensor.

8. The system of claim 7, wherein the device provides at least an acoustic warning or visual warning to the intruder.

9. The system of claim 6, wherein the intruder is non-human and connects to the sensor wirelessly.

10. The system of claim 1, wherein the unique area is at least a hidden area, a corner, a door, an aisle, or a pillar.

11. The system of claim 1, wherein the plurality of sensors monitors the location where the intruder can pass.

12. The system of claim 1, wherein the plurality of sensors are safety laser scanners.

13. The system of claim 12, further comprising a 3D camera configured to perform a 3D volume analysis for an overlapping region of at least one of the safety laser scanners.

14. The system of claim 13, wherein the 3D camera is configured to perform a predictive analysis of the 3D volume.

15. The system of claim 13, wherein at least one safety laser scanner includes a motorized gimbal mount and is configured to perform 3D laser scanning to obtain 3D SLS data.

16. The system of claim 13, wherein at least one of the 3D camera or the safety laser scanner is configured to superimpose 3D camera data and the 3D SLS data.

17. The system of claim 12, further comprising a master safety laser scanner mounted on the AGV configured to communicate with the safety laser scanners placed throughout the location as slave devices.

18. The system of claim 17, wherein the master safety laser scanner integrates navigation hardware and software and an obstacle detection and avoidance system within a same housing.

19. The system of claim 17, wherein the navigation hardware and software includes a map stored in memory.

20. The system of claim 13, wherein the 3D camera is configured to perform barcode decoding.