Safety system

Patent metadata

Field	Value
Publication number	US-11674641-B2
Application number	US-202117314608-A
Country	US
Kind code	B2
Filing date	May 7, 2021
Priority date	May 11, 2020
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A safety system and a method having a safety system for localizing and identifying a person or an object, a control and evaluation unit, at least one radio location system, and having at least one identification sensor for identifying the person or the object, wherein a marking is arranged on the person or on the object, wherein the radio location system has arranged radio stations, wherein at least one radio transponder is arranged on the person or on the object, wherein position data of the person or of the object can be determined by means of the radio location system, and wherein the position data can be transmitted from the radio station of the radio location system to the control and evaluation unit, and identification data from the marking on the person or the object can be determined by means of the identification sensor.

First claim

The invention claimed is:

1. A safety system for localizing and identifying a person or object, the safety system comprising:
a control and evaluation unit;
at least one radio location system; and
at least one identification sensor for identifying the person or the object, wherein a marking is arranged on the person or on the object,
wherein the at least one radio location system has arranged radio stations,
wherein the at least one radio location system comprises at least one ultra-wideband radio location system operating on a frequency in the range between 3.1 GHz and 10.6 GHz, and with a transmission energy per radio station having a maximum of 0.5 mW,
wherein at least one radio transponder is arranged on one of the person and the object, the at least one radio transponder being arranged separately on the one of the person and the object from the marking,
wherein position data of the one of the person and the object can be determined from the at least one radio transponder arranged thereon by means of the at least one radio location system,
wherein the position data can be transmitted from the arranged radio stations of the at least one radio location system to the control and evaluation unit,
wherein identification data can be determined from the marking arranged on the one of the person or on the object by means of the at least one identification sensor,
wherein the identification data can be transmitted from the at least one identification sensor to the control and evaluation unit, and
wherein the control and evaluation unit is configured to compare the position data of the at least one radio location system and the identification data of the at least one identification sensor and to form checked person data or checked object data on a valid agreement.

2. The safety system in accordance with claim 1 , wherein the at least one identification sensor and the arranged radio stations are arranged as stationary or are arranged as mobile at a movable machine.

3. The safety system in accordance with claim 1 , wherein the at least one identification sensor is an RFID sensor or a barcode sensor.

4. The safety system in accordance with claim 1 , wherein at least one encoder is additionally arranged to verify the position of the object.

5. The safety system in accordance with claim 1 , wherein at least one spatially resolving sensor is arranged in addition to the at least one radio location system to determine the position of the person or of the object.

6. The safety system in accordance with claim 5 , wherein the at least one spatially resolving sensor is a laser scanner.

7. The safety system in accordance with claim 1 , wherein at least one spatially limited access zone having at least one access station for a facility is arranged,
wherein the facility has at least one safety zone and at least one hazardous zone within the safety zone,
wherein the at least one safety zone is only accessible via the at least one spatially limited access zone so that the at least one spatially limited access zone can be passed through by the person or by the object before reaching the at least one safety zone and after leaving the at least one safety zone, and
wherein the at least one spatially limited access zone is only able to be passed through with the checked person data or the checked object data.

8. The safety system in accordance with claim 7 , wherein the at least one access station of the at least one spatially limited access zone can be locked and can only be passed through by permitted persons or permitted objects.

9. The safety system in accordance with claim 1 , wherein a dangerous movement of a movable machine in at least one hazardous zone is transformed into a safe state when the person or the object approaches the hazardous zone or the person or the object is present in the hazardous zone.

10. The safety system in accordance with claim 9 , wherein a warning zone is formed adjacent to the at least one hazardous zone, with the dangerous movement of the movable machine in the at least one hazardous zone being transformed into the safe state when the person or the object is present in the warning zone.

11. The safety system in accordance with claim 1 , wherein at least that part of a facility is in a safe state in whose region the person or the object is detected.

12. The safety system in accordance with claim 1 , wherein the at least one identification sensor and the arranged radio stations are each mounted on a movable machine.

13. A method for localizing and identifying a person or object using a safety system, the safety system having a control and evaluation unit, at least one radio location system, and at least one identification sensor for identifying the person or the object, wherein a marking is arranged on one of the person and the object, wherein the at least one radio location system has arranged radio stations, wherein the at least one radio location system comprises at least one ultra-wideband radio location system operating on a frequency in the range between 3.1 GHz and 10.6 GHz and with a transmission energy per radio station having a maximum of 0.5 mW, and at least one radio transponder is arranged on the one of the person and the object, the at least one radio transponder being arranged separately on the one of the person and the object from the marking, the method comprising:
determining position data of the one of the person and the object from the at least one radio transponder arranged thereon by means of the at least one radio location system;
transmitting the position data from the arranged radio stations of the at least one radio location system to the control and evaluation unit;
determining identification data from the marking on the one of the person and the object by means of the at least one identification sensor;
transmitting the identification data from the at least one identification sensor to the control and evaluation unit; and
comparing the position data of the at least one radio location system and the identification data of the at least one identification sensor using the control and evaluation unit and forming checked person data or checked object data on a valid agreement.

14. The method in accordance with claim 13 , further comprising the step of mounting the at least one identification sensor and the arranged radio stations on a movable machine.

Assignees

• Sick Ag

Inventors

• Brunner Fabio
• Hammes Markus
• Ams Mathias

Classifications

• F16P3/144

  using light grids · CPC title

• G07C11/00

  Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere · CPC title

• H04W4/029 Primary

  Location-based management or tracking services · CPC title

• F16P3/147 Primary

  using electro-magnetic technology, e.g. tags or radar · CPC title

• F16P3/142

  using image capturing devices · CPC title