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Device and method for inspecting frames to be used by electronic devices of a communication network based on function type and using parameters contained in the frames

A technology of electronic equipment and communication network, which is applied in the direction of data exchange through path configuration, bus network, data exchange network, etc., and can solve the problems of electronic equipment running speed decrease and reaction time incompatibility, etc.

Active Publication Date: 2016-05-18
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to improve the situation, it is of course possible to calculate in a systematic way and in real time for each error frame mutually compatible default values ​​for each parameter it contains, but this will cause (with constant computing power) the operation of the electronic equipment A (very) significant drop in speed, not compatible with the reaction times some of their native applications require

Method used

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  • Device and method for inspecting frames to be used by electronic devices of a communication network based on function type and using parameters contained in the frames

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Embodiment Construction

[0023] The invention has the particular problem of providing a frame checking device D associated with an intercommunicating electronic device O1 connected in parallel to the bus BU of the communication network RC.

[0024] In what follows, by way of non-limiting example, the communication network RC is considered to be a CANLS ("Controller Area Network Low Speed") type network. However, the invention is not limited to this type of communication network. In fact, it concerns every type of communication network provided with a bus, and in particular, CANHS ("Controller Area Network High Speed"), VAN ("Vehicle Area Network"), LIN ("Local Interconnect Network") and FlexRay type of network.

[0025] Furthermore, in what follows, by way of non-limiting example, the RC network is considered to be part of a vehicle, possibly of an automotive type (eg a sedan). However, the invention is not limited to this application. In fact, it concerns in particular land vehicles, ships and air...

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Abstract

The invention relates to a device (D) for checking frames of groups of bits received by an electronic device (O1) connected to a communication network (RC) and using at least one local function. Said device (D) comprises checking means (MC) configured to force the electronic device (O1) in case of error in at least one group of bits in a frame received from said network (RC) Using at least each group of bits in the received frame representing a parameter of a non-secure type local function used by said electronic device (O1).

Description

technical field [0001] The invention relates to electronic devices capable of communicating with each other via a communication network, and more precisely to the inspection of frames received by such electronic devices. Background technique [0002] Certain communication networks comprise a bus to which communication electronics are connected in parallel. Via this bus, data is then exchanged between the communicating electronics by means of multiplexed frames. The term "frame" here denotes a unit of groups of bits, for at least some of which represent values ​​taken by parameters used by local functions in the electronic device. [0003] Among these networks, CANLS ("ControllerAreaNetworkLowSpeed ​​Controller Area Network Low Speed"), or CANHS ("ControllerAreaNetworkHighSpeed ​​Controller Area Network High Speed"), or VAN ("VehicleAreaNetwork Vehicle Area Network"), or LIN ("LocalInterconnectNetwork network) or those types of FlexRay. Such networks are used in many areas ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40
CPCH04L12/40169G06F11/0763
Inventor L·安东纽奇C·威尔沃特
Owner PEZHO SITROEN AUTOMOBILS SA