Method and device for monitoring a bus system and bus system
First Claim
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1. A method of monitoring a bus system having at least two users, comprising:
- structuring at least one of the at least two users of the bus system as at least one authorized user that monitors at least some of a plurality of data transmissions on the bus system;
for each of the monitored data transmissions;
transmitting an identifier uniquely allocatable to one of the at least two users;
causing the at least one authorized user to compare the respective identifier with another identifier; and
if, and conditional upon that, (a) the respective identifier and the other identifier are the same and (b) the respective data transmission is initiated by a user other than the at least one authorized user, implementing a measure in order to prevent an execution of the respective data to be transmitted;
wherein at least one of the monitored data transmissions is initiated by the user other than the at least one authorized user.
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Abstract
A method and device for monitoring a bus system and bus system having at least two users, of which at least one is structured as an authorized user and monitors the data transmission on the bus system, an identifier being transmitted and the identifier being uniquely allocatable to one user for each data transmission on the bus system, the at least one authorized user comparing the identifier with a specified identifier, and if both identifiers are the same taking measures in order to prevent an execution of the data to be transmitted if the data transmission is initiated by a user other than the at least one authorized user.
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Citations
13 Claims
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1. A method of monitoring a bus system having at least two users, comprising:
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structuring at least one of the at least two users of the bus system as at least one authorized user that monitors at least some of a plurality of data transmissions on the bus system; for each of the monitored data transmissions; transmitting an identifier uniquely allocatable to one of the at least two users; causing the at least one authorized user to compare the respective identifier with another identifier; and if, and conditional upon that, (a) the respective identifier and the other identifier are the same and (b) the respective data transmission is initiated by a user other than the at least one authorized user, implementing a measure in order to prevent an execution of the respective data to be transmitted; wherein at least one of the monitored data transmissions is initiated by the user other than the at least one authorized user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification