Method and filter system for storing information about messages coming in via a serial data bus of a communication network in a user of the network

摘要

A method and a filter system for storing information about messages coming in via a serial data bus of a communication network in a communication module of a user connected to the data bus, which are filtered using a filter system. In order to be able to implement a particularly simple and efficient storage of information about incoming messages even in the event of a great number of filter criteria, the invention provides for the filter system to include a list, which as list elements has one or multiple filter elements, which contain storage control information, and for a check to be performed on the basis of the storage control information as to whether information about an incoming message is to be stored, and information about an incoming message is stored if the check has determined that the information is to be stored.

主权项

1. A method for storing information of messages coming in via a serial data bus of a communication network in a communication module of a user connected to the data bus, the method comprising:
filtering the messages using a filter system, the messages each having an identifier for identification and the properties of the filter system being defined by identifiers of messages stored in at least one list of the filter system, wherein the list has as list elements at least one filter element, which contains storage control information, wherein each filter element contains an identifier pair and information about an incoming message is stored only if the identifiers of the incoming message are contained within a range defined by the identifier pair; configuring a setting for handling the incoming message if the identifiers are not contained within the range, wherein the setting is configurable to specify that the incoming message is to be rejected, and the setting is also configurable to specify that the incoming message is to be accepted for forwarding to an application of the user even though the identifiers are not contained within the range; performing a check based on the storage control information as to whether information about an incoming message is to be stored; storing information about an incoming message if the check reveals that the information is to be stored; and handling the incoming message by accepting or rejecting the incoming message in accordance with the configured setting if the identifiers of the incoming message are not contained within the range, wherein accepted incoming messages are stored at a location accessible by the application; wherein the incoming message is stored in a FIFO buffer and the application has random access to individual messages stored via a suitable interface by which individual messages are accessed independently of the access to the individual messages that is provided to the application by the FIFO buffer, and wherein the FIFO buffer is one of a plurality of FIFO buffers in which the incoming message is storable, the information about the incoming message identifies which buffer the incoming message is stored in, and the application uses the information to perform a random access to the incoming message.