US 12,341,625 B2 · E2E synchronization

Abstract

The present disclosure is directed to systems and methods directed to improving the functions of a vehicle. Systems and methods are provided that provide a custom tool that autogenerates a set of software agents that allows a system to separate processing, transmission and receiving of messages to achieve better synchronization. The disclosure herein also provides a simplified method of key provisioning by designating one client as a server and assigning a symmetric key to every other client permanently provisioned between that client and the server. Systems and method are further provided that predict faults in a vehicle. Systems and methods are also provided that preserve data in the event of a system crash. Systems and methods are also provided in which an operating system of a vehicle detects the presence of a new peripheral and pulls the related interface file for that new peripheral. Further, a data synchronization solution is provided herein which provides optimized levels of synchronization.

Claims20

Dependent claims

A method comprising:

accessing a file that comprises information for decoding bus data, and
generating, based on the file, a plurality of software agents, wherein the software agents, when executed, are configured to:
receive a raw message via the bus,
within a single task:
unpack the raw message to generate a signal value,
generate a security protection value for the raw message, and
in response to a request for the signal value from an instance of an application executing based on instructions in a protected memory location, provide the instance of the application synchronous access to the signal value and the security protection value by:
transmitting, to a time server, a synchronization request comprising a first timestamp,
receiving a synchronization message from the time server, the synchronization message comprising (a) the first timestamp, (b) a second timestamp indicative of when the time server received the synchronization request, and (c) a third timestamp indicative of when the synchronization message was sent by the time server, and
causing to provide synchronous access to the signal value and the security protection value based on the synchronization message.

7 more elements

A non-transitory computer readable medium having instructions encoded thereon, that when executed by control circuitry causes the control circuitry to:

access a file that comprises information for decoding bus data, and
generate, based on the file, a plurality of software agents, wherein the software agents, when executed, are configured to:
receive a raw message via the bus,
within a single task:
unpack the raw message to generate a signal value,
generate a security protection value for the raw message, and
in response to a request for the signal value from an instance of an application executing based on instructions in a protected memory location, provide the instance of the application synchronous access to the signal value and the security protection value by:
transmitting, to a time server, a synchronization request comprising a first timestamp,
receiving a synchronization message from the time server, the synchronization message comprising (a) the first timestamp, (b) a second timestamp indicative of when the time server received the synchronization request, and (c) a third timestamp indicative of when the synchronization message was sent by the time server, and
causing to provide synchronous access to the signal value and the security protection value based on the synchronization message.

7 more elements

A vehicle system comprising:

a sensor connected to at least one bus, and
control circuitry configured to:
access a file that comprises information for decoding bus data received from the sensor via the bus, and
generate, based on the file, a plurality of software agents, wherein the software agents, when executed, are configured to:
receive a raw message via the bus,
within a single task:
unpack the raw message to generate a signal value,
generate a security protection value for the raw message, and
in response to a request for the signal value from an instance of an application executing based on instructions in a protected memory location, provide the instance of the application synchronous access to the signal value and the security protection value by:
transmitting, to a time server, a synchronization request comprising a first timestamp,
receiving a synchronization message from the time server, the synchronization message comprising (a) the first timestamp, (b) a second timestamp indicative of when the time server received the synchronization request, and (c) a third timestamp indicative of when the synchronization message was sent by the time server, and
causing to provide synchronous access to the signal value and the security protection value based on the synchronization message.

9 more elements

Dependencies are inferred from the claim text.

E2E synchronization

Life of this patent

E2E synchronization

Life of this patent

Abstract

Claims20