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Method for electricity meter to realize baud rate adaptive communication

A baud rate, self-adaptive technology, applied in electrical components, transmission systems, etc., can solve problems such as error-prone, time-consuming, and save time.

Inactive Publication Date: 2014-07-02
SUZHOU IND PRAK NEW HONGBO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the actual installation of electric meters, it is generally necessary to manually set the baud rate of each electric meter according to the transmission baud rate of the master station to ensure normal communication with each other. This method is time-consuming and error-prone

Method used

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  • Method for electricity meter to realize baud rate adaptive communication

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Embodiment Construction

[0016] See figure 1 The method for implementing baud rate adaptive communication of an electric meter in an embodiment of the present invention is used to complete the communication between the electric meter and the master station. The method for the ammeter to realize baud rate adaptive communication includes the following steps.

[0017] S1: provide communication connections with several master stations and the internal program is set with communication protocols and several different baud rates;

[0018] S2: One of the master stations sends a frame call;

[0019] S3: The meter receives the frame call;

[0020] S4: The internal program of the meter decomposes the received frame call according to the set communication protocol, and then issues a selection command;

[0021] S5: The internal program of the electric meter selects between several baud rates in turn according to the selection command issued in step S4, and tries to establish communication with the selected bau...

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Abstract

The invention relates to a method for an electricity meter to realize baud rate adaptive communication. The method comprises the following steps: the step S1 in which an electricity meter which is in communication connection with a plurality of master stations and in the internal program of which a communication protocol and a plurality of different baud rates are set is provided; the step S2 in which a frame call is sent by one of the master stations; the step S3 in which the frame call is received by the electricity meter; the step S4 in which decomposition is performed by the internal program of the electricity meter on the received frame call according to the set communication protocol so as to give a selection instruction; and the step S5 in which recurrent selection is performed by the internal program of the electricity meter among the plurality of baud rates according to the selection instruction given in the step S4, and the communication between the selected baud rate and the master station is tried to be established, when communication can be established between the selected baud rate and the master station, the running of the selection instruction is stopped, and when communication cannot be established between the selected baud rate and the master station, the next baud rate is selected, and then the communication between the next baud rate and the master station is tried to be established until the communication between the selected baud rate and the master station is established. According to the method, the electricity meter intelligentization function can be realized, and the advantage of time saving can be realized.

Description

technical field [0001] The invention relates to a method for realizing baud rate self-adaptive communication of an electric meter. Background technique [0002] The communication between the meter and the master station complies with the communication protocol DL / T-645. When the parameters of the meter and the master station match each other, the communication can be normal, and the baud rate is one of the parameters. The current communication industry regulations, especially the regulations of the State Grid (State Grid Corporation of China): ensure that the meter can communicate at baud rates of 600bps, 1200bps, 2400bps, 4800bps, and 9600bps; other baud rate values ​​are not required. At present, in the actual installation of electric meters, it is generally necessary to manually set the baud rate of each electric meter according to the transmission baud rate of the master station to ensure normal communication with each other. This method is time-consuming and error-prone...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 朱玲莉
Owner SUZHOU IND PRAK NEW HONGBO COMM TECH
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