Method for implementing a real-time industrial internet field broadband bus

• US 10,164,785 B2
• Filed: 09/13/2016
• Issued: 12/25/2018
• Est. Priority Date: 06/23/2016
• Status: Active Grant

• Current Assignee: Kyland Technology Co.,Ltd.
• Original Assignee: Kyland Technology Co.,Ltd.
• Inventors: Zhang, Jianfeng, Yan, Zhiwei
• Primary Examiner(s): Tsai, Henry
• Assistant Examiner(s): Hassan, Aurangzeb
• Application Number:
  US15/263,955
• Publication Number:
  US 20170373872A1
• Time in Patent Office: 833 Days
• Field of Search: None
• CPC Class Codes: G06F 13/426 using an embedded synchronisation, e.g. Firewire bus, Fibre Channel bus, SSA bus
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 12/40 Bus networks
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller
• CPC Class Codes: H04L 12/40078 Bus configuration home automation networks H04L12/2803; arrangements for maintenance or administration H04L41/00
• CPC Class Codes: H04L 12/40123 Interconnection of computers and peripherals printer information exchange with computer G06F3/1293
• CPC Class Codes: H04L 12/56 Packet switching systems
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention discloses a method for implementing a real-time industrial internet field broadband bus, the method including: determining, by a bus controller, the number of bus terminals connected therewith; and allocating, by the bus controller, time slices for the bus terminals according to the number of bus terminals, and transmitting, by the bus controller, the time slices to the bus terminals so that the bus terminals operate in the allocated time slices. Moreover data are transmitted in the bus system by removing Ethernet/IP message header information to thereby reduce the length of the message, and shorten a transmission delay and a bus scan periodicity so as to improve the real-time characteristic of the bus system.

Claims

1. A method for implementing a real-time industrial internet field broadband bus, the method being applicable to a two-wire data transfer network in which a bus controller is connected with one or more bus terminals over the network according to their IP addresses, and in which the bus controller synchronizes its clock with the bus terminals, wherein the method comprises:

determining, by the bus controller, the number of bus terminals connected with the bus controller over the two-wire data transfer network;

allocating, by the bus controller, one or more time slices for the one or more bus terminals according to the number of bus terminals; and

transmitting, by the bus controller, the time slices to the bus terminals so that the bus terminals operate in the allocated time slices;

wherein the allocated time slices of the different bus terminals do not overlap with each other;

wherein the method further comprises;

upon reception of a data packet to be transmitted to a bus terminal, if it is determined that the data packet is not a configuration data packet, then determining, by the bus controller, a bus device address corresponding to a destination IP address and a destination MAC address according to a binding relationship between the destination IP address, the destination MAC address, and the bus device address; and

composing, by the bus controller, a new message from the bus device address, and data information in the data packet, and transmitting the new message to the bus terminal corresponding to the determined bus device address;

wherein composing, by the bus controller, the new message from the bus device address, and the data information in the data packet comprises;

removing, by the bus controller, a header in the data packet, and reserving the data information in the data packet; and

generating the new message by adding the determined bus device address before the data information in the data packet as a header.

2. The method according to claim 1, wherein determining, by the bus controller, the number of bus terminals connected with the bus controller over the two-wire data transfer network comprises:

receiving, by the bus controller, one or more time slice acquisition requests transmitted by the one or more bus terminals; and

determining, by the bus controller, the number of bus terminals according to the number of time slice acquisition requests.

3. The method according to claim 1, wherein before determining, by the bus controller, the number of bus terminals connected with the bus controller over the two-wire data transfer network, the method further comprises:

determining, by the bus controller, there is a change in the number of bus terminals.

4. The method according to claim 1, wherein allocating, by the bus controller, time slices for the bus terminals according to the number of bus terminals comprises:

determining, by the bus controller, for any one bus terminal a transmission priority corresponding to a type identifier of the bus terminal according to a correspondence relationship between the type identifier and the transmission priority; and

determining, by the bus controller, the allocated time slices of the bus terminals according to the transmission priorities of the bus terminals, and the number of bus terminals.

5. The method according to claim 1, wherein the method further comprises:

upon reception of the data packet to be transmitted to the bus terminal, it is determined that the data packet is a configuration data packet, then determining, by the bus controller, the corresponding bus terminal according to the configuration data packet; and

transmitting, by the bus controller, the configuration data packet to the bus terminal so that the bus terminal performs a corresponding configuration operation according to the configuration data packet.

6. The method according to claim 1, wherein generating, by the bus controller, the binding relationship between the destination IP address, the destination MAC address, and the bus device address comprises:

allocating, by the bus controller, the IP address and the bus device address for the bus terminal upon reception of the IP address acquisition request transmitted by the bus terminal; and

generating, by the bus controller, a three-dimension correspondence relationship between the MAC address of the bus terminal, and the allocated IP address and bus device address of the bus terminal;

wherein the IP address acquisition request includes the MAC address of the bus terminal.

7. The method according to claim 1, wherein a precision clock synchronization protocol is the IEEE1588 clock protocol.

8. The method according to claim 1, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

9. The method according to claim 2, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

10. The method according to claim 3, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

11. The method according to claim 4, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

12. The method according to claim 1, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

13. The method according to claim 1, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

14. The method according to claim 5, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

15. The method according to claim 6, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.

16. The method according to claim 7, wherein the method further comprises:

allocating, by the bus controller, a time slice for the bus controller according to the number of bus terminals.