CN202918288U - Electric power line carrier network communication module with timing function and intelligent ammeter - Google Patents

Electric power line carrier network communication module with timing function and intelligent ammeter Download PDF

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Publication number
CN202918288U
CN202918288U CN 201220467204 CN201220467204U CN202918288U CN 202918288 U CN202918288 U CN 202918288U CN 201220467204 CN201220467204 CN 201220467204 CN 201220467204 U CN201220467204 U CN 201220467204U CN 202918288 U CN202918288 U CN 202918288U
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CN
China
Prior art keywords
main control
power line
module
line carrier
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220467204
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Chinese (zh)
Inventor
杨利民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN YIHUA MICROELECTRONICS CO Ltd
Original Assignee
TIANJIN YIHUA MICROELECTRONICS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN YIHUA MICROELECTRONICS CO Ltd filed Critical TIANJIN YIHUA MICROELECTRONICS CO Ltd
Priority to CN 201220467204 priority Critical patent/CN202918288U/en
Application granted granted Critical
Publication of CN202918288U publication Critical patent/CN202918288U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a power line carrier network communication module with a timing function. The power line carrier network communication module with the timing function comprises a power supply circuit, an interface circuit, a main control processor, a carrier transceiving circuit and an oscillator circuit. The power line carrier network communication module with the timing function is characterized in that the main control processor comprises a main control module, a carrier modem and a timing signal transceiving module; the main control module is connected with the timing signal transceiving module; the timing signal transceiving module is connected with the carrier modem; the carrier transceiving circuit is connected with the carrier modem and is used for the amplification sending and the filter receiving of a power line carrier signal; the oscillator circuit is connected with the main control module and is used for providing a clock reference for the main control processor; the interface circuit is connected with the main control module and is used for being connected with another communication device; and the power supply circuit is connected with the main control module and powers the whole communication device. According to the utility model, the high precision timing function is integrated into the power line carrier module, thus the problem of large accumulation error of a real time clock chip is solved, and the cost of an intelligent ammeter is reduced.

Description

Power line carrier network communication module and intelligent electric meter with time service function
Technical field
The utility model belongs to the power-line carrier communication field, relates to a kind of power line carrier network communication module with time service function.
Background technology
The step price scheme was formally implemented in 1 day July in 2012 in China; And multiple rate electricity price scheme also is expected to implement in the near future.The prerequisite of multiple rate electricity price scheme implementation is the accurate timing of intelligent electric meter.For the intellectuality of power supply enterprise, informatization, rate electricity price scheme again only, the statistical management of other a lot of technical indicators all needs the accurate timing of intelligent electric energy meter.At present, the accurate clocking capability of intelligent electric energy meter is to be finished by its inner realtime clock chip, and considers power-off condition, must be aided with large capacity one-time lithium battery for subsequent use.For using realtime clock chip to add the technical scheme of lithium battery for subsequent use, although the accuracy of timekeeping of realtime clock chip itself is at-40 ℃ to+85 ℃ total temperature scope Nei Keda 3.4PPM, but because do not possess periodic calibration mechanism, so the long-term accumulated error of using is very much considerable, and realtime clock chip and lithium battery cost are high, have increased implementation cost.
Summary of the invention
The purpose of this utility model provides a kind of power line carrier network communication module with time service function, realtime clock chip adds the accurate timing solution of lithium battery for subsequent use in the alternative present intelligent electric meter, provide automatic high accuracy time service service by this module to intelligent electric meter, realize the accurate timing of intelligent electric meter; Reduce simultaneously cost.
To achieve these goals, technical solution adopted in the utility model is:
A kind of power line carrier network communication module with time service function, comprise power circuit, interface circuit, main control processor, carrier transmitting-receiving circuit, pierce circuit, it is characterized in that: described main control processor comprises main control module, carrier modem and time signal sending/receiving module, described main control module is connected with the time signal sending/receiving module, and described time signal sending/receiving module is connected with carrier modem; The carrier transmitting-receiving circuit connects carrier modem, and the amplification transmission and the filtering that are used for the power line carrier signal receive; Pierce circuit connects main control module, and being used for provides clock reference to main control processor; Interface circuit connects main control module, is used for being connected with other communicator; Power circuit is connected with main control module, gives whole communicator power supply.
Further, described pierce circuit uses common 20PPM (in 40 ℃ to+85 ℃ total temperature scopes) quartz resonator.
Further, a kind of intelligent electric meter that power line carrier network communication module with time service function is installed is characterized in that: the communication port of described intelligent electric meter is connected with the interface circuit of described power line carrier network communication module.
The beneficial effects of the utility model are:
1, the utility model has been integrated into high accuracy time service function in the power line carrier module, after intelligent electric meter uses this module, can be per diem even carry out by the hour precision time service, error is in 1 millisecond, solved the large problem of realtime clock chip accumulated error, thereby satisfied the needs of the accurate timing of intelligent electric meter, increased substantially the timing accuracy of intelligent electric meter under long-term service condition;
2, realtime clock chip and lithium battery for subsequent use as the indispensable element of intelligent electric meter can be saved, the manufacturing cost of intelligent electric meter can be significantly reduced.
Description of drawings
Fig. 1 is the utility model structural representation
Among the figure:
1, power circuit 2, interface circuit
3, main control processor 4, carrier transmitting-receiving circuit
5, pierce circuit
Embodiment
Below in conjunction with accompanying drawing a kind of embodiment of the present utility model is made brief description.
As shown in Figure 1, power line carrier network communication module with high accuracy time service function, the utility model comprise power circuit 1, interface circuit 2, main control processor (comprising carrier modem and time signal sending/receiving module) 3, carrier transmitting-receiving circuit 4, pierce circuit 5.Main control processor 3 comprises power line carrier modem, adopts direct sequence spread spectrum, and BPSK debugs demodulation mode; Comprise simultaneously the main control module and the time signal sending/receiving module that possess 8051 kernels, can the sending and receiving time signal, the sending and receiving of time signal at most only needs 1 millisecond.Carrier transmitting-receiving circuit 4 connects main control processor 3, and the amplification transmission and the filtering that are used for the power line carrier signal receive.Pierce circuit 5 uses common 20PPM (in 40 ℃ to+85 ℃ total temperature scopes) quartz resonator, connects main control processor 3, is used for providing clock reference to main control processor.Interface circuit 2 connects main control processor 3, is used for being connected with other communicator.Power circuit 1 is connected with main control processor 3, gives whole communicator power supply.
The utility model is after the time service order that receives regular length and form, extract the temporal information of time service order delivery time wherein, after carrying out corresponding compensation of delay, send to intelligent electric meter by interface circuit 2, the current correct time after intelligent electric meter can obtain upgrading.Because the time service order can per diem even by the hour be sent, so the utility model can use common quartz resonator to carry out the accurate timing (day error is in 2 seconds) of short time, substitute the long-time accurately timing of the high-precision real clock chip of intelligent electric meter inside, and thoroughly eliminated the accumulated error of realtime clock chip.The utility model can also be transmitted the time service order to the carrier module of other node by power line, to realize the time service function of whole all nodes of power line carrier network.
After the utility model powers on, can carry out reception, transmission and the forwarding of normal carrier commands.Receive the time service order of regular length that concentrator or other the utility model send and form when the utility model after, whether the automatic detection of hardware receives time signal, if receive time signal, then primary control program extracts year, month, day, hour, min, second, the millisecond information in the time service order; Otherwise abandon order.Because the moment that this temporal information is sent corresponding to the time service order, so also will deduct again the required fixing transmission time of time service order (being determined by order length and carrier transmission speed), deduct again time signal and send and receive required 1 millisecond, be accurate to exactly the current time of Millisecond, primary control program is stored this current correct time, (deduct the transmission time that sends to intelligent electric meter behind the precompensation, and etc. by the time whole second constantly), send to intelligent electric meter by interface circuit 2, the current correct time after intelligent electric meter can obtain upgrading.If the utility model receives the carrier commands of the transmission time service order that concentrator or other the utility model send, then according to the current time of the timer operation by main control processor, send the carrier wave time service order that includes the current time by power line.If address of the present utility model appears in the transistroute table of carrier wave time service order, then carry out the relay forwarding of carrier wave time service order.
Above an example of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.

Claims (3)

1. power line carrier network communication module with time service function, comprise power circuit, interface circuit, main control processor, carrier transmitting-receiving circuit, pierce circuit, it is characterized in that: described main control processor comprises main control module, carrier modem and time signal sending/receiving module, described main control module is connected with the time signal sending/receiving module, and described time signal sending/receiving module is connected with carrier modem; The carrier transmitting-receiving circuit connects carrier modem, and the amplification transmission and the filtering that are used for the power line carrier signal receive; Pierce circuit connects main control module, and being used for provides clock reference to main control processor; Interface circuit connects main control module, is used for being connected with described power line carrier network communication module communicator in addition; Power circuit is connected with main control module, gives whole communicator power supply.
2. power line carrier network communication module according to claim 1 is characterized in that: described pierce circuit use 20PPM quartz resonator.
3. intelligent electric meter that power line carrier network communication module claimed in claim 1 is installed, it is characterized in that: the communication port of described intelligent electric meter is connected with the interface circuit of described power line carrier network communication module.
CN 201220467204 2012-09-13 2012-09-13 Electric power line carrier network communication module with timing function and intelligent ammeter Expired - Fee Related CN202918288U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220467204 CN202918288U (en) 2012-09-13 2012-09-13 Electric power line carrier network communication module with timing function and intelligent ammeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220467204 CN202918288U (en) 2012-09-13 2012-09-13 Electric power line carrier network communication module with timing function and intelligent ammeter

Publications (1)

Publication Number Publication Date
CN202918288U true CN202918288U (en) 2013-05-01

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Application Number Title Priority Date Filing Date
CN 201220467204 Expired - Fee Related CN202918288U (en) 2012-09-13 2012-09-13 Electric power line carrier network communication module with timing function and intelligent ammeter

Country Status (1)

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CN (1) CN202918288U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103647627A (en) * 2013-12-11 2014-03-19 国家电网公司 Networked medium voltage narrow band power line carrier device based on carrier timing
CN105824233A (en) * 2016-06-02 2016-08-03 南京林洋电力科技有限公司 Initiative time service module based on Beidou/GPS and ammeter initiative time service method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103647627A (en) * 2013-12-11 2014-03-19 国家电网公司 Networked medium voltage narrow band power line carrier device based on carrier timing
CN103647627B (en) * 2013-12-11 2016-08-17 国家电网公司 Networking based on carrier wave time service narrows band power line carrier equipment
CN105824233A (en) * 2016-06-02 2016-08-03 南京林洋电力科技有限公司 Initiative time service module based on Beidou/GPS and ammeter initiative time service method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130501

Termination date: 20150913

EXPY Termination of patent right or utility model