Method to perform a scheduled action of network devices

• US 20010026533A1
• Filed: 01/04/2001
• Published: 10/04/2001
• Est. Priority Date: 07/06/1998
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: Schwager, Andreas
• Application Number:
  US09/754,160
• Publication Number:
  US 20010026533A1
• Time in Patent Office: Days
• US Class Current: 370/229
• CPC Class Codes: H04J 3/1682 Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2805 Home Audio Video Interoperability [HAVI] networks
• CPC Class Codes: H04L 12/2814 Exchanging control software or macros for controlling appliance services in a home automation network arrangements for maintenance or administration involving configuration of the network and network elements H04L41/08
• CPC Class Codes: H04L 12/2821 Avoiding conflicts related to the use of home appliances cryptographic protocols H04L9/00; protocols for network security H04L63/00
• CPC Class Codes: H04L 12/40065 Bandwidth and channel allocation home automation networks H04L12/2803; flow control H04L47/10
• CPC Class Codes: H04L 12/40117 Interconnection of audio or video/imaging devices home automation networks H04L12/2803; bitstream network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04L 47/13 in a LAN segment, e.g. ring or bus
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02

Abstract

A method to perform a scheduled action of network devices that are connected via a network comprises calculating an individual triggering time for every device that should perform a predetermined action at a predetermined time. This individual triggering time is calculated based on the synchronous start time of said respective scheduled action and an individual start-up time of the respective device participating in the scheduled action.

Claims

1. A method to perform a scheduled action of a plurality of devices (13, 14) that are connected via a network, comprising the steps of:

calculating an individual triggering time for each device (13, 14) that is to perform a predetermined action at a predetermined time; and

utilizing said individual triggering time for each device (13, 14) to perform said scheduled action.

2. The method according to

claim 1

, wherein said individual triggering time is calculated based on a synchronous start time of said scheduled action and an individual start-up time that a respective device (13, 14) requires to perform said predetermined action.

3. The method according to

claim 2

, wherein the individual start-up time that said respective device (13, 14) needs to perform said predetermined action is based on the worst-case start-up time that the respective device (13, 14) requires to perform said predetermined action.

4. The method according to

claim 2

, wherein the individual start-up time that said respective device (13, 14) requires to perform said predetermined action is based on a current state of the respective device (13, 14).

5. The method according to

claim 1

, wherein a resource manager (12) of the network respectively transmits said predetermined action and said predetermined time of said scheduled action to said each device (13, 14) that is to perform said predetermined action at said predetermined time.

6. The method according to anyone of

claims 1

to

5

, wherein every device (13, 14) calculates its individual triggering time itself.

7. The method according to

claim 6

, wherein said each device (13, 14) sets an internal clock with the calculated individual start-up time that triggers said each device (13, 14) at its individual triggering time.

8. The method according to

claim 6

, wherein said each device (13, 14) transmits said triggering time to a clock device (15) of the network.

9. The method according to

claim 4

, wherein a resource manager (12) of the network respectively transmits said predetermined action and said predetermined time of said scheduled action for said each device (13, 14) that is to perform said predetermined action at said predetermined time to a clock device (15) of the network, or to another control device in the network, and respectively, said predetermined action to the respective device (13, 14), and said each device (13, 14) that is to perform said predetermined action at said predetermined time transmits its individual start-up time needed to perform the predetermined action to said clock device (15) or to said another control device.

10. The method according to

claim 9

, wherein said clock device or said another control device calculates the individual triggering time for said each device (13, 14).

11. The method according to

claim 10

, wherein said another control device transmits its calculated triggering times for said each device (13, 14) to said clock device (15).

12. The method according to

claim 11

, wherein said another control device may also be the resource manager (12).

13. The method according to

claim 8

, wherein said clock device (15) triggers said each device (13, 14) at the individual triggering time for said each device (13, 14).

14. The method according to

claim 1

, wherein said network is a home network.

15. The method according to

claim 1

, wherein said network is a 1394-based network.

16. The method according to

claim 1

, wherein said each device (13, 14) is a consumer electronic device.

17. A system for performing a scheduled action with network devices, comprising:

means for managing scheduling information for a network action on said electronic network;

a first network device coupled to said electronic network for accessing said scheduling information and first device timing information to generate first device triggering information;

a second network device coupled to said electronic network for accessing said scheduling information and second device timing information to generate second device triggering information; and

a clock device for utilizing said first device triggering information to activate said first network device, and for utilizing said second device triggering information to activate said second network device to thereby accurately performing said scheduled action of said electronic network.

18. The system of

claim 17

wherein said first device timing information is based on a first startup time of said first network device, and wherein said second device timing information is based on a second startup time of said second network device.

19. The system of

claim 17

wherein said means for managing scheduling information includes an invoking application and a resource manager.

20. The system of

claim 17

wherein said electronic network functions in accordance with a home audio-video interoperability specification.

21. A system for managing a scheduled action in an electronic network comprising:

an invoking application configured to generate action invocation information corresponding to said scheduled action;

a resource manager configured to handle said action invocation information to thereby control one or more network devices to perform said scheduled action.

22. The system of

claim 21

wherein said resource manager passes said action invocation information to one or more device control modules that respectively correspond to, and control said one or more network devices.

23. The system of

claim 22

wherein said one or more device control modules each build an internal agenda for reservation of said one or more network devices to perform said scheduled action.

24. The system of

claim 23

further comprising a plurality of scheduled actions, and wherein said one or more device control modules each check for whether said one or more network devices will be able to simultaneously perform said plurality of scheduled actions.

25. The system of

claim 21

wherein a trigger device notifies said resource manager to begin said scheduled action.