Method for selecting an outstation using a control center in a transmission system
First Claim
1. A method of calling a substation by a central station in a transmission system for the purposes of information transmission for remote reading of electricity meters by way of a communication channel selected from a plurality of communication channels, wherein the plurality of communication channels are divided into communication groups, wherein the communication channels within a communication group have the same communication properties, the method comprising:
- a) identifying a first communication group associated with a select substation to be called;
b) determining whether any communication channel of the first communication group is free;
c) acquire meter reading data over a free channel of the first communication group if it is determined that any communication channel of the first communication group is free; and
d) waiting and repeating step b if it is determined that no communication channel of the first communication group is free.
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Accused Products
Abstract
The method serves for calling a substation (USm) by a central station (Z) in a transmission system for the purposes of information transmission by way of a communication channel (m) called from a plurality of communication channels. The plurality of communication channels is subdivided into communication groups (GRI, GRII, GRIII) of the same property or the same parameter values. Within a selected communication group (GRII) a communication channel (m) is called, which is still communication-free. If all (n) communication channels of the communication group (GRII) are already busy, the central station (Z) goes into a waiting condition until at least one of the communication channels of the communication group (GRII) becomes communication-free. The method permits optimum, parallel and synchronous utilisation of all available communication means for a group of the substations so that the central station (Z) by way of communication channels of that group acquires simultaneously and in optimum fashion data, in particular measurement data of electricity meters, of all associated substations.
27 Citations
14 Claims
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1. A method of calling a substation by a central station in a transmission system for the purposes of information transmission for remote reading of electricity meters by way of a communication channel selected from a plurality of communication channels, wherein the plurality of communication channels are divided into communication groups, wherein the communication channels within a communication group have the same communication properties, the method comprising:
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a) identifying a first communication group associated with a select substation to be called; b) determining whether any communication channel of the first communication group is free; c) acquire meter reading data over a free channel of the first communication group if it is determined that any communication channel of the first communication group is free; and d) waiting and repeating step b if it is determined that no communication channel of the first communication group is free. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An arrangement for information transmission for remote reading of electricity meters over a communication system, the arrangement comprising:
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a plurality of communication channels divided into communication groups, wherein the communication channels within a communication group have the same communication properties, a substation associated with a first communication group; a central station coupled to the plurality of communication channels, the central station operable to a) determine whether any communication channel of the first communication group is free, b) acquire meter reading data over a free channel of the first communication group if it is determined that any communication channel of the first communication group is free, and c) waiting and repeating the step c if it is determined that no communication channel of the first communication group is free. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification