Responsive system for digital signal processing and method for operation of a responsive system
A responsive system for digital signal processing and a method for operation of the responsive system implement computer programs, which are dependent on a respective update status, in data processing units that communicate with one another through a data transmission unit, in order to make the responsive system particularly reliable, even when subject to frequent revision. During each communication, each data processing unit assigns a revision identity characterizing its update status to a signal produced by it. A data processing unit receiving the signal carries out a comparison to determine if the revision identity characterizing the signal matches a revision identity stored for that signal and, if the revision identities match, the signal is processed.
1. A responsive system for digital processing comprising:
a data transmission unit; and
a plurality of data processing units communicating with one another through said data transmission unit via messages wherein each message comprises at least one signal, said data processing units implementing at least one computer program dependent on a respective update status, the system being configured as follows:
a) each of said data processing units, during each communication, assigning a revision identity to each signal within a message produced by said data processing unit to characterize said respective update status of said each signal;
b) one of said data processing units receiving the message performing a comparison to determine if the revision identity characterizing each signal within the received message matches a revision identity stored for that signal; and
c) said one of said data processing units receiving the at least one message, performing said at least one computer program on a signal within the message upon matching the received revision identity with the stored revision identity and otherwise not performing said at least one computer program on the signal.
2. The responsive system according to claim 1 , wherein each of said data processing units has an analysis module for carrying out the comparison.
3. The responsive system according to claim 1 , including a first database storing the respective update status of at least one of the signals and the computer programs of all of said data processing units, and a second database storing at least one of future modifications or revisions of respective signals to be modified and respective computer programs to be modified.
4. The responsive system according to claim 1 , including a service system for updating at least one of the computer programs and the signals of said data processing units.
5. A method for operation of a responsive system for digital signal processing, which comprises:
a) providing a data transmission unit;
b) providing a plurality of data processing units communicating with one another through the data transmission unit via messages wherein each message comprises at least one signal;
c) said data processing units implementing at least one computer program depending on a respective update status;
d) each of said data processing units, during each communication, assigning a revision identity to each signal within a message produced by said data processing unit to characterize said respective update status of said each signal;
e) carrying out a comparison in one of the data processing units receiving the message to determine if the revision identity characterizing each signal within the received message matches a revision identity stored for that signal; and
f) said one of said data processing units receiving the at least one message, performing said at least one computer program on a signal within the message upon matching the received revision identity with the stored revision identity and otherwise not performing said at least one computer program on the signal.
6. The method according to claim 5 , which further comprises storing the stored revision identity in an analysis module in the data processing unit receiving the message and in a database.
7. The method according to claim 6 , which further comprises incrementing the revision identity characterizing the signal and the revision identity stored for the signal by a value of one for a revision relating to that signal.
8. The method according to claim 6 , which further comprises providing the revision identity characterizing the signal, and the revision identity stored for the signal, with a negative mathematical sign when the signal is removed from the message.
9. The method according to claim 5 , which further comprises storing the stored revision identity in a database.
10. The method according to claim 9 , which further comprises incrementing the revision identity characterizing the signal and the revision identity stored for the signal by a value of one for a revision relating to that signal.
11. The method according to claim 9 , which further comprises providing the revision identity characterizing the signal, and the revision identity stored for the signal, with a negative mathematical sign when the signal is removed from the message.
12. The method according to claim 5 , which further comprises storing the stored revision identity in an analysis module in the data processing unit receiving the message.
13. The method according to claim 12 , which further comprises incrementing the revision identity characterizing the signal and the revision identity stored for the signal by a value of one for a revision relating to the signal.
14. The method according to claim 12 , which further comprises providing the revision identity characterizing the signal, and the revision stored for the signal, with a negative mathematical sign when the signal is removed from the message.
15. The method according to claim 5 , wherein implementing at least one computer program depending on a respective update status includes processing the received signal if the revision identities of the received signal and stored signal match and otherwise not processing the received signal.