System for safeguarding a person from an autonomously operating machine

1. A system for safeguarding one or more persons from an autonomously operating machine that operates in a predefined workspace, the system comprising:

at least one body-worn device, wherein each body-worn device is configured as a safety sensor and

a safety controller configured to:

combine a plurality of input signals from a plurality of safety sensors and

execute a safety function that asserts control over the autonomously operating machine based on the plurality of input signals,

wherein each body-worn device is configured to generate a respective one of the plurality of input signals for the safety controller and

wherein the each body-worn device comprises a safety device configured to:

ensure failsafe locking and arrangement of the body-worn device on a person wearing the body-worn device in a predefined manner and

generate, in response to the body-worn device being locked and arranged in the predefined manner, the respective one of the plurality of input signals.

2. The system of claim 1 , wherein the safety device of each body-worn device comprises a failsafe interlocking device configured to lock the body-worn device on the person in the predefined manner.

3. The system of claim 1 , wherein the safety device of each body worn device comprises a sensor configured to determine whether the body-worn device is arranged on the person in the predefined manner.

4. The system of claim 3 , wherein the sensor of each body-worn device is configured to detect a vital sign of the person only when the body-worn device is locked in the predefined manner.

5. The system of claim 4 , wherein the vital sign is a heartbeat of the person.

6. The system of claim 1 , wherein each body-worn device comprises an evaluation unit configured to evaluate a status of the safety device of the body-worn device in a failsafe manner.

7. The system of claim 6 , wherein the evaluation unit comprises two individual processing units configured to be redundant with each other.

8. The system of claim 1 , wherein the safety controller is further configured to:

determine a position of each body-worn device in a defined surrounding of the autonomously operating machine and

control the autonomously operating machine based on the determined position.

9. The system of claim 8 , wherein:

each body-worn device comprises a positioning device configured to determine a current position of the body-worn device and

each body-worn device is configured to transmit the determined current position to the safety controller.

10. The system of claim 1 , wherein the autonomously operating machine is configured to:

determine whether each body-worn device is within a defined surrounding of the autonomously operating machine and

assert control over the autonomously operating machine in conjunction with or independently of the safety controller.

11. The system of claim 1 , wherein:

each body-worn device comprises a communication device configured to communicate via a radio communication network and

the system further comprises one or more receivers associated with the safety controller and configured to communicate with each body-worn device via the radio communication network.

12. The system of claim 11 , wherein the safety controller is configured to:

determine a location of each body-worn device relative to components of the radio communication network and

assert control based on the determined location.

13. The system of claim 11 , wherein the radio communication network is a dedicated short-range radio communication network using ultra wide band technology.

14. The system of claim 1 , wherein the safety controller is configured to log in and trace each body-worn device within a defined workspace in which the autonomously operating machine operates.

15. The system of claim 14 , wherein the safety controller is further configured to:

control access to the defined workspace and

allow access only to persons having respective ones of the body-worn devices.

16. The system of claim 15 , wherein:

the safety function is configured to transfer the autonomously operating machine into a safe state and

the safety controller is configured to, for each logged-in body-worn device, execute the safety function in response to interruption of the respective input signal being received from the logged-in body-worn device.

17. The system of claim 16 , wherein the safe state comprises the autonomously operating machine being stopped safely.

18. The system of claim 1 , wherein the safety controller is further configured to, for each body-worn device:

register the body-worn device either automatically or manually,

grant the person wearing the body-worn device access to the workspace only when the body-worn device is registered,

track the registered body-worn device within the workspace, and

execute the safety function in response to losing contact with the body-worn device.

19. A body-worn device for safeguarding a person from an autonomously operating machine that operates in a predefined workspace, the body-worn device comprising:

a safety device configured to ensure failsafe locking and arrangement of the body-worn device on the person in a predefined manner and

a transmitting device configured to, only in response to the body-worn device being locked and arranged in the predefined manner, generate an input signal to a safety controller that combines a plurality of plurality of input signals from a plurality of safety sensors and executes a safety function that asserts control over the autonomously operating machine based on the plurality of input signals.

20. A method for safeguarding one or more persons from an autonomously operating machine that operates in a predefined workspace, the method comprising:

by a safety controller, combining a plurality of input signals from a plurality of safety sensors;

by each of at least one body-worn device:

ensuring, using a safety device of the body-worn device, failsafe locking and arrangement of the body-worn device on a person wearing the body-worn device in a predefined manner and

generating, in response to the body-worn device being locked and arranged in a predefined manner, one of the plurality of input signals; and

asserting control, by the safety controller, over the autonomously operating machine based on the plurality of input signals.