CN114142960A - Method for timing acquisition terminal of low-voltage transformer area by using mobile 5G base station - Google Patents
Method for timing acquisition terminal of low-voltage transformer area by using mobile 5G base station Download PDFInfo
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- CN114142960A CN114142960A CN202111573788.1A CN202111573788A CN114142960A CN 114142960 A CN114142960 A CN 114142960A CN 202111573788 A CN202111573788 A CN 202111573788A CN 114142960 A CN114142960 A CN 114142960A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G7/00—Synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0644—External master-clock
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Abstract
The invention discloses a method for timing a low-voltage station area acquisition terminal by utilizing a mobile 5G base station, which comprises the following steps: step 1: taking a clock of the mobile 5G base station as a clock reference of the whole low-voltage distribution room acquisition system; step 2: setting a clock deviation threshold value by taking the acquisition terminal as a calibrated device, establishing contact with the mobile 5G base station through a communication module, and periodically acquiring a clock from the mobile 5G base station; and step 3: the acquisition terminal calculates and generates clock compensation according to the communication duration; and 4, step 4: after clock compensation is added, the acquisition terminal judges the difference value between the clock information of the acquisition terminal and the mobile 5G clock information and judges whether the difference value exceeds the clock deviation threshold range or not so as to calibrate the clock information of the acquisition terminal. The invention provides a method for calibrating the time of a low-voltage station area acquisition terminal by using a mobile 5G base station, aiming at the problems that the existing acquisition terminal has a complicated and fussy time calibration process and is not suitable for high-frequency periodic time calibration, and the time calibration method does not need to install new equipment and can be used for quickly and conveniently calibrating the time of the acquisition terminal by the mobile 5G base station, thereby making up the technical blank of the clock control of the acquisition terminal during the time calibration period of a master station.
Description
Technical Field
The invention relates to the technical field of intelligent power utilization, in particular to a method for timing a low-voltage station area acquisition terminal by using a mobile 5G base station.
Background
The current low-voltage distribution network in the platform area bears the key intelligence of the power grid terminal for conveying domestic electricity, and along with the deepening of the intelligent power grid in the field of the low-voltage distribution network, an accurate electricity utilization acquisition system clock is the basis of the intelligent power grid construction. On the basis of an accurate clock, all communication equipment can develop lean management functions such as power meter clock management, topology identification, accurate line loss calculation, inaccurate electric energy meter monitoring and the like, and can adapt to access of high-density renewable energy sources and promote intellectualization of a low-voltage distribution network.
At present, clock management in the power utilization acquisition system of the low-voltage transformer area is realized by primary-level time synchronization of the whole acquisition system.
For example, a chinese patent document discloses "a method for synchronizing time of a low-voltage station acquisition system based on HPLC carrier", whose publication number is CN113315546A, whose publication date is 2021.08.27. Firstly, the electricity collection system clocks the collection terminal, secondly, the collection terminal clock can be periodically requested to realize self time synchronization and calibration through the route of the collection terminal for power line carrier meter reading, and finally, the route synchronizes the time information to the whole network STA module.
However, at present, when the master station of the electricity consumption acquisition system is used for calibrating the terminal, the master station is required to acquire internet time, periodically send messages to actively call and measure the terminal time, calculate clock compensation of communication delay in the messages, and then send the messages to the acquisition terminal. Errors in the time of the week period require a simpler and more convenient way to assist in clock management.
In order to solve the problems, after the acquisition terminal establishes the contact of the mobile 5G base station, the clock of the acquisition terminal can be directly acquired and the time of the acquisition terminal can be corrected, and compared with the traditional method, the method is more convenient and simpler, namely a master station actively corrects the time of the acquisition terminal, and less resources are consumed.
The method does not involve routing and the following hierarchical timing methods.
Disclosure of Invention
The invention provides a method for calibrating the time of a low-voltage station area acquisition terminal by using a mobile 5G base station, aiming at the problems that the existing acquisition terminal has a complicated and fussy time calibration process and is not suitable for high-frequency periodic time calibration, and the time calibration method does not need to install new equipment and can be used for quickly and conveniently calibrating the time of the acquisition terminal by the mobile 5G base station, thereby making up the technical blank of the clock control of the acquisition terminal during the time calibration period of a master station.
The purpose of the invention can be realized by the following technical scheme:
a method for timing a low-voltage station area acquisition terminal by using a mobile 5G base station comprises the following steps:
step 1: taking a clock of the mobile 5G base station as a clock reference of the whole low-voltage distribution room acquisition system;
step 2: setting a clock deviation threshold value by taking the acquisition terminal as a calibrated device, establishing contact with the mobile 5G base station through a communication module, and periodically acquiring a clock from the mobile 5G base station;
and step 3: the acquisition terminal calculates and generates clock compensation according to the communication duration;
and 4, step 4: after clock compensation is added, the acquisition terminal judges the difference value between the clock information of the acquisition terminal and the mobile 5G clock information and judges whether the difference value exceeds the clock deviation threshold range or not so as to calibrate the clock information of the acquisition terminal.
In this application, the acquisition terminal is synchronous with removal 5G basic station clock, and 5G basic station time source is GPS and big dipper because global GPS or BD time information is the same (30 ten thousand years only differ by 1 second) and then realize the time synchronization display function. Meanwhile, the participation of the electricity utilization acquisition system main station is reduced in the time setting process, the consumed resources are less, and the process is simpler and quicker. In addition, the acquisition of time is increased in the communication process of the original acquisition terminal and the base station, new equipment does not need to be installed, the cost is increased, and the method and the device are very easy to implement.
Drawings
Fig. 1 is a schematic flow chart of timing of a low-voltage station area acquisition terminal by using a mobile 5G base station.
FIG. 2 is a diagram of a low-voltage distribution room acquisition terminal device and a communication module
Detailed Description
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
A method for timing a low-voltage station acquisition terminal by using a mobile 5G base station, as shown in figure 1, comprises the following steps:
step 1: taking a clock of the mobile 5G base station as a clock reference of the whole low-voltage distribution room acquisition system;
step 2: setting a clock deviation threshold value by taking the acquisition terminal as a calibrated device, establishing contact with the mobile 5G base station through a communication module, and periodically acquiring a clock from the mobile 5G base station;
and step 3: the acquisition terminal calculates and generates clock compensation according to the communication duration;
and 4, step 4: after clock compensation is added, the acquisition terminal judges the difference value between the clock information of the acquisition terminal and the mobile 5G clock information and judges whether the difference value exceeds the clock deviation threshold range or not so as to calibrate the clock information of the acquisition terminal.
The above-mentioned embodiments are illustrative of the specific embodiments of the present invention, and are not restrictive, and those skilled in the relevant art can make various changes and modifications to obtain corresponding equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should be included in the scope of the present invention.
Claims (3)
1. A method for timing a low-voltage station acquisition terminal by using a mobile 5G base station is characterized in that the method establishes contact with the mobile 5G base station through GPRS to acquire the current time and perform timing on the terminal, and comprises the following steps:
step 1: taking a clock of the mobile 5G base station as a clock reference of the whole low-voltage distribution room acquisition system;
step 2: setting a clock deviation threshold value by taking the acquisition terminal as a calibrated device, establishing contact with the mobile 5G base station through a communication module, and periodically acquiring a clock from the mobile 5G base station;
and step 3: the acquisition terminal calculates and generates clock compensation according to the communication duration;
and 4, step 4: after clock compensation is added, the acquisition terminal judges the difference value between the clock information of the acquisition terminal and the mobile 5G clock information and judges whether the difference value exceeds the clock deviation threshold range or not so as to calibrate the clock information of the acquisition terminal.
2. The method for timing the low-voltage station area acquisition terminal by using the mobile 5G base station as claimed in claim 1, wherein the connection between the low-voltage station area acquisition terminal and the mobile base station is established to actively acquire clock information of the mobile base station, so that the clock of the acquisition terminal is calibrated more simply and quickly.
3. The method according to claim 1, wherein in step 3, the communication duration, the serial port rate and the number of bytes of the transmission message are related to the cell environment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111573788.1A CN114142960A (en) | 2021-12-21 | 2021-12-21 | Method for timing acquisition terminal of low-voltage transformer area by using mobile 5G base station |
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| CN202111573788.1A CN114142960A (en) | 2021-12-21 | 2021-12-21 | Method for timing acquisition terminal of low-voltage transformer area by using mobile 5G base station |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016145677A1 (en) * | 2015-03-13 | 2016-09-22 | 宇龙计算机通信科技(深圳)有限公司 | Data transmission method in internet of things, system, internet of things device and terminal |
| CN107346995A (en) * | 2017-07-31 | 2017-11-14 | 威胜信息技术股份有限公司 | Clock synchronizing method based on power information acquisition terminal |
| WO2019205498A1 (en) * | 2018-04-28 | 2019-10-31 | 广州供电局有限公司 | Clock synchronization method and device for electric energy meter, computer device and storage medium |
| CN112511259A (en) * | 2020-12-18 | 2021-03-16 | 南方电网电力科技股份有限公司 | Intelligent terminal clock management method and device, storage medium and terminal equipment |
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2021
- 2021-12-21 CN CN202111573788.1A patent/CN114142960A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016145677A1 (en) * | 2015-03-13 | 2016-09-22 | 宇龙计算机通信科技(深圳)有限公司 | Data transmission method in internet of things, system, internet of things device and terminal |
| CN107346995A (en) * | 2017-07-31 | 2017-11-14 | 威胜信息技术股份有限公司 | Clock synchronizing method based on power information acquisition terminal |
| WO2019205498A1 (en) * | 2018-04-28 | 2019-10-31 | 广州供电局有限公司 | Clock synchronization method and device for electric energy meter, computer device and storage medium |
| CN112511259A (en) * | 2020-12-18 | 2021-03-16 | 南方电网电力科技股份有限公司 | Intelligent terminal clock management method and device, storage medium and terminal equipment |
Non-Patent Citations (2)
| Title |
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| 李飞等: "采集终端时钟错乱问题分析及处理", 河北电力技术, vol. 37, no. 3, pages 3 * |
| 祝婧等: "时钟同步在用电信息采集系统中的应用", 电测与仪表, no. 1 * |
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