Method and device for data transfer in a computer network

Patent metadata

Field	Value
Publication number	US-2016294497-A1
Application number	US-201615066859-A
Country	US
Kind code	A1
Filing date	Mar 10, 2016
Priority date	Apr 2, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A method and a correspondingly designed device for data transfer in a computer network, the method including transmitting a first message addressed by a first node of the computer network to a second node of the computer network for requesting information regarding the synchronicity of the second node with an element of the computer network, receiving a second message addressed by the second node of the computer network to the first node of the computer network with information regarding the synchronicity of the second node with the element, and ascertaining a status of the synchronization of the second node with the element with the aid of the received information.

First claim

What is claimed is:

1 . A method for data transfer in a computer network comprising:
transmitting a first message addressed by a first node of the computer network to a second node of the computer network for requesting information regarding the synchronicity of the second node with an element of the computer network; receiving a second message addressed by the second node of the computer network to the first node of the computer network with information regarding the synchronicity of the second node with the element; and ascertaining a status of synchronization of the second node with the element with the aid of the received information.

2 . A method for data transfer in a computer network comprising:
receiving a first message addressed by a first node of the computer network to a second node of the computer network, for requesting information regarding synchronicity of the second node of the computer network with an element of the computer network; ascertaining information regarding the synchronicity of the second node with the element with the aid of the received information; and transmitting a second message addressed by the second node of the computer network to the first node of the computer network with information regarding the synchronicity of the second node with the element.

3 . The method as recited in claim 1 , wherein the element is one of a bus system, a node connected to a bus system, or the first node.

4 . The method as recited in claim 2 , wherein the element is one of a bus system, a node connected to a bus system, or the first node.

5 . The method as recited in claim 1 , wherein the first message or the second message includes payload data with information about one of: i) an instruction for an action to be carried out by the second node, ii) a status of an action to be carried out by the second node at the instruction of the first node, or iii) a result of an action carried out by the second node at the instruction of the first node.

6 . The method as recited in claim 2 , wherein the first message or the second message includes payload data with information about one of: i) an instruction for an action to be carried out by the second node, ii) a status of an action to be carried out by the second node at the instruction of the first node, or iii) a result of an action carried out by the second node at the instruction of the first node.

7 . The method as recited in claim 1 , wherein the first message or the second message includes a first data word of a predefined bit length in a frame of a predefined protocol in a predefined field at predefined position, the first data word including information about an action to be carried out.

8 . The method as recited in claim 2 , wherein the first message or the second message includes a first data word of a predefined bit length in a frame of a predefined protocol in a predefined field at predefined position, the first data word including information about an action to be carried out.

9 . The method as recited in claim 7 , wherein at least one additional data word of a predefined bit length is provided in the frame in an additional predefined field at an additional predefined position with additional information one of:
i) about an inquiry regarding a time, ii) about an inquiry regarding a bus time, iii) about an inquiry regarding an accuracy of a synchronization between two nodes, iv) about an inquiry regarding an accuracy of a synchronization between a node connected to a bus system and the bus system itself, v) about an inquiry regarding the status of a synchronization between two nodes, vi) about an inquiry regarding the status of a synchronization between a node connected to a bus system and the bus system itself, vii) about a response regarding a time, viii) about a response regarding a bus time, ix) about a response regarding an accuracy of a synchronization between two nodes, x) about a response regarding an accuracy of a synchronization between a node connected to a bus system and the bus system itself, xi) about a response regarding a status of a synchronization between two nodes, xii) about a response regarding a status of a synchronization between a node connected to a bus system and the bus system itself, xiii) about a particular point in time, at which an action is to be triggered by a node, xiv) for registering a node as a receiver of a message by another node, xv) for deregistering a node previously registered by the one node as a receiver of a message, xvi) about a predefinable event, with the occurrence of which a message is to be transmitted by a node, xvii) about a point in time after which a message is to be transmitted by a node, xviii) about a clock pulse, in which a message is to be repeatedly transmitted by a node, xix) about a status of the synchronization between a node connected to a bus system and the bus system itself, or xx) about a status of the synchronization between two nodes.

10 . The method as recited in claim 8 , wherein at least one additional data word of a predefined bit length is provided in the frame in an additional predefined field at an additional predefined position with additional information one of:
i) about an inquiry regarding a time, ii) about an inquiry regarding a bus time, iii) about an inquiry regarding an accuracy of a synchronization between two nodes, iv) about an inquiry regarding an accuracy of a synchronization between a node connected to a bus system and the bus system itself, v) about an inquiry regarding the status of a synchronization between two nodes, vi) about an inquiry regarding the status of a synchronization between a node connected to a bus system and the bus system itself, vii) about a response regarding a time, viii) about a response regarding a bus time, ix) about a response regarding an accuracy of a synchronization between two nodes, x) about a response regarding an accuracy of a synchronization between a node connected to a bus system and the bus system itself, xi) about a response regarding a status of a synchronization between two nodes, xii) about a response regarding a status of a synchronization between a node connected to a bus system and the bus system itself, xiii) about a particular point in time, at which an action is to be triggered by a node, xiv) for registering a node as a receiver of a message by another node, xv) for deregistering a node previously registered by the one node as a receiver of a message, xvi) about a predefinable event, with the occurrence of which a message is to be transmitted by a node, xvii) about a point in time after which a message is to be transmitted by a node, xviii) about a clock pulse, in which a message is to be repeatedly transmitted by a node, xix) about a status of the synchronization between a node connected to a bus system and the bus system itself, or xx) about a status of the synchronization between two nodes.

11 . The method as recited in claim 1 , wherein the first and second messages are transmitted in the physical layer of the computer network and are transmitted with the aid of a protocol for wired data networks.

12 . The method as recited in claim 11 , wherein the protocol is the Ethernet protocol.

13 . A device for data transfer in a computer network, which is configured to:
transmit a first message addressed by a first node of the computer network to a second node of the computer network for requesting information regarding the synchronicity of the second node with an element of the computer network; receive a second message addressed by the second node of the computer n

Assignees

• Bosch Gmbh Robert

Inventors

• Zinner Helge

Classifications

• H04J3/0635 Primary

  Clock or time synchronisation in a network (timer in protocols H04L69/28) · CPC title

• H04L12/28

  characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] (wireless communication networks H04W {; arrangements for dividing the transmission path H04W40/00}) · CPC title

• H04L12/40202 Primary

  by using a plurality of master stations · CPC title

• H04J3/0658

  Clock or time synchronisation among packet nodes · CPC title

• G06F1/14

  Time supervision arrangements, e.g. real time clock · CPC title