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Holiday programming event recording and reading method of a smart energy meter

A smart energy meter, event recording technology, applied in the direction of input/output to record carrier, data processing input/output process, electrical digital data processing, etc., can solve the problem of high cost of hardware design, save data storage space, The effect of increasing recording speed and reducing hardware cost

Active Publication Date: 2017-09-15
ZHANGZHOU CANNET ELECTRICAL APPLIANCE
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  • Application Information

AI Technical Summary

Problems solved by technology

In the design of smart energy meters, data is stored through EEPROM, and the commonly used large-capacity EEPROM is 24LC256, which has a capacity of only 32768 bytes. According to this design, only one-third of the EEPROM is needed for the recording function. , making hardware design expensive

Method used

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  • Holiday programming event recording and reading method of a smart energy meter
  • Holiday programming event recording and reading method of a smart energy meter
  • Holiday programming event recording and reading method of a smart energy meter

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Embodiment Construction

[0032] The present invention will be further described below through specific embodiments.

[0033] refer to Figure 2 to Figure 7 A method for recording and reading holiday programming events of a smart electric energy meter. The electric energy meter stores public holiday data information, which includes the sequence of holidays and corresponding holidays.

[0034] 1) Holiday programming event recording step means that when programming the electric energy meter holidays, each time programming will only write (that is, update) one holiday data in 1-254 holidays and record the holiday programming event, as follows:

[0035] After updating the holiday data corresponding to a certain order of the current public holiday data information, save the updated holiday data, and record the update time, operator code, the order and its corresponding holiday data before updating storage. The data storage capacity is as follows: the public holiday data information 4*254 is 1016 bytes; th...

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Abstract

The invention discloses a holiday and festival programming event recording and reading method for an intelligent ammeter. The method comprises the first step of holiday and festival programming event recording and the second step of holiday and festival programming event reading, wherein in the first step, holiday and festival data corresponding to a certain sequence of current public holiday and festival data information are updated, the updated data are saved, and the updating time, an operator code, the sequence and the holiday and festival data corresponding to the sequence before being updated are recorded and stored. By the adoption of the method, only one EEPROM is needed, so that the data storage space is greatly saved, the recording speed is increased, and the hardware cost is lowered.

Description

technical field [0001] The invention relates to the field of electric energy meter data storage, in particular to a method for recording and reading holiday programming events of an intelligent electric energy meter. Background technique [0002] In the electric power industry standard DL / T 645-2007 of the People's Republic of China, table A.4 event record data identification code table requires that the electric energy meter can realize the function of recording event programming on holidays, and the recording requirements are as follows: [0003] [0004] According to the requirements, a data space of 1026 bytes is required for one record, including 6 bytes of sending time, 4 bytes of operator code and 4*254 of all holiday data, so a total of 10 times of data space needs to use 10260 bytes, refer to figure 1 . In the design of smart energy meters, data is stored through EEPROM, and the commonly used large-capacity EEPROM is 24LC256, which has a capacity of only 32768 b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0608
Inventor 许来顺曾戈弋骆贵泉
Owner ZHANGZHOU CANNET ELECTRICAL APPLIANCE