CN103400488A - Local communication module device of watt-hour meter - Google Patents
Local communication module device of watt-hour meter Download PDFInfo
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- CN103400488A CN103400488A CN2013103257520A CN201310325752A CN103400488A CN 103400488 A CN103400488 A CN 103400488A CN 2013103257520 A CN2013103257520 A CN 2013103257520A CN 201310325752 A CN201310325752 A CN 201310325752A CN 103400488 A CN103400488 A CN 103400488A
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Abstract
The invention relates to a local communication module device of a watt-hour meter. The local communication module device of the watt-hour meter comprises a double-mode communication chip, a wireless-transmission amplification circuit, a wireless-receiving amplification circuit, a single-chip microcomputer, a carrier transmission amplification circuit, a receiving filtering circuit, a carrier coupling circuit, a helical antenna, a radio frequency change-over switch, a printed circuit board and a communication module box, wherein the helical antenna is positioned at the right end of the printed circuit board, and the double-mode communication chip is positioned at the upper part of the middle of the printed circuit board; the wireless-transmission amplification circuit and the wireless-receiving amplification circuit are positioned at the right upper part of the printed circuit board, and the single-chip microcomputer is positioned at the left upper part of the printed circuit board; the carrier transmission amplification circuit and the receiving filtering circuit are positioned at the left lower part of the printed circuit board; a gap is formed in the left side of the helical antenna. According to the local communication module device of the watt-hour meter, the circuit design of the communication module of an electricity consumption information collection system is simple, the wireless performance is increased, the cost is reduced, and the win-win purpose of the technology and the cost is realized. Moreover, the antenna is fixedly arranged in the communication module box, so that the antenna does not occupy the space, is beautiful, and is unlikely to be damaged.
Description
Technical field
The present invention relates to a kind of local communication device that adopts the power consumer power information acquisition system of single-chip dual-mode communication function.Be specifically related to a kind of electric energy meter local communication modular device.
Background technology
At present National Power System uses morely the communication technology and has wireless two kinds of low pressure carrier wave or micropower in power information acquisition system local communication, these two communication modes all exist obvious drawback: the communication environment of low-voltage power line is abominable, carrier communication is affected by electric network impedance variation, noise, harmonic wave etc. easily, cause communication unreliable, once the real rate of copying is only 95%; Micro power radio communication is subjected to the cause influences such as transmission range, buildings stop, air interference, and the success ratio of checking meter is also lower.In order to solve communication success ratio problem, adopt low pressure carrier wave and the wireless communication mode that combines of micropower, take low pressure carrier wave as main, micropower is wireless is auxiliary, and both coordinate mutually, automatically switches, form twin-channel solution, overcome the wireless defect of low pressure carrier wave and micropower, can greatly improve the success ratio of checking meter, used power utilization information collection system really to move towards practical.
If adopt power line carrier and the wireless mode that combines of micropower in the power information acquisition system, as adopting the dual chip scheme of power line carrier communication chip and micro power radio communication chip.The dual chip scheme makes local communication module periphery circuit design complexity, cost increase, and product P CB wiring difficulty is high, is not easy the design objective that reaches higher, has lost dual mode communication mode competitive edge.The wireless performance of electric energy meter local communication modular device is directly related with the integral layout of printed circuit board (PCB), and the scheme of dual chip bimodulus is more because of peripheral component, can't obtain more rational layout, directly affects wireless performance.In addition,, because the antenna of the micropower wireless communication module of prior art need be fixed on communication module box outside, both occupied space, not attractive in appearance again, and easily damage.
Summary of the invention
The purpose of this invention is to provide a kind of electric energy meter local communication modular device, make the circuit design of power information acquisition system communication module simple, wireless performance improves, cost, realized the purpose of technology and cost doulbe-sides' victory, and antenna is fixed in the communication module box, neither occupy space, attractive in appearance again, and be not easy to damage.
In order to achieve the above object, the present invention has following technical scheme:
a kind of electric energy meter local communication modular device of the present invention, comprise Dual-mode communication chip, the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, single-chip microcomputer, carrier wave sends amplifying circuit, wave reception filtering circuit, the carrier wave coupling circuit, helical antenna, radio frequency converting switch, printed circuit board (PCB), communication module box, described carrier wave coupling circuit send amplifying circuit with carrier wave respectively, wave reception filtering circuit connects, the bimodulus Dual-mode communication chip respectively with the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, single-chip microcomputer, carrier wave sends amplifying circuit, wave reception filtering circuit connects, radio frequency converting switch respectively with the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, radio frequency converting switch connects, and described single-chip microcomputer is by bus and carrier wave coupling circuit, helical antenna, radio frequency converting switch connects, and described printed circuit board (PCB) is positioned at communication module box, and described helical antenna is positioned at the right-hand member of printed circuit board (PCB), and described dual mode communication chip is positioned at the top in the middle of printed circuit board (PCB), wireless transmission amplifying circuit, the wireless receiving amplifying circuit is positioned at the printed circuit board (PCB) upper right quarter, single-chip microcomputer is positioned at the printed circuit board (PCB) upper left quarter, carrier wave sends amplifying circuit and accepts filtering circuit and is positioned at the printed circuit board (PCB) lower left quarter, leave neutral gear in described helical antenna left side, this neutral is 1/3 of printed circuit board area, is not provided with any circuit and components and parts in this neutral.
Wherein, described printed circuit board (PCB) is provided with four layers, and centre is two-layer is ground, and the ground on printed circuit board (PCB) is provided with several via holes, and with the ground of the pros and cons of printed circuit board (PCB) and middle two-layer ground conducting.
The invention has the advantages that:
1, reasonable in design on printed circuit board (PCB) of electric energy meter local communication modular device of the present invention, the wireless receiving performance index, namely receiving sensitivity can reach-119dBm.
2, the wireless external emissive power of electric energy meter local communication modular device of the present invention is not less than 10mW.
3, the detection that can check and approve by national standard radio transition equipment model of the wireless spurious emissions of electric energy meter local communication modular device of the present invention.
4, the present invention adopts helical antenna to be fixed in the communication module box, neither occupies space, and is attractive in appearance again, and is not easy to damage.
Description of drawings
Fig. 1 is the block diagram of circuit of the present invention;
Fig. 2 is the schematic diagram of the present invention's structure on printed circuit board (PCB).
Embodiment
Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
referring to Fig. 1～2, a kind of electric energy meter local communication modular device of the present invention, by Dual-mode communication chip, the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, single-chip microcomputer, carrier wave sends amplifying circuit, wave reception filtering circuit, the carrier wave coupling circuit, helical antenna, radio frequency converting switch, printed circuit board (PCB), communication module box forms, and described carrier wave coupling circuit sends amplifying circuit with carrier wave respectively, wave reception filtering circuit connects, the bimodulus Dual-mode communication chip respectively with the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, single-chip microcomputer, carrier wave sends amplifying circuit, wave reception filtering circuit connects, radio frequency converting switch respectively with the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, radio frequency converting switch connects, and described single-chip microcomputer is by bus and carrier wave coupling circuit, helical antenna, radio frequency converting switch connects, and described printed circuit board (PCB) is positioned at communication module box, and described helical antenna is positioned at the right-hand member of printed circuit board (PCB), and described dual mode communication chip is positioned at the top in the middle of printed circuit board (PCB), wireless transmission amplifying circuit, the wireless receiving amplifying circuit is positioned at the printed circuit board (PCB) upper right quarter, single-chip microcomputer is positioned at the printed circuit board (PCB) upper left quarter, carrier wave sends amplifying circuit and accepts filtering circuit and is positioned at the printed circuit board (PCB) lower left quarter, leave neutral gear in described helical antenna left side, this neutral is 1/3 of printed circuit board area, is not provided with any circuit and components and parts in this neutral.
Described printed circuit board (PCB) is provided with four layers, and centre is two-layer is ground, and the ground on printed circuit board (PCB) is provided with several via holes, and with the ground of the pros and cons of printed circuit board (PCB) and middle two-layer ground conducting.Dual mode communication chip of the present invention includes power line carrier communication function and micro power radio communication function,, by two functions are integrated in a single chip, make a chip have the communication function of power line carrier and the wireless dual mode of micropower.
The present invention is tested relatively with the dual chip scheme that adopts power line carrier communication chip and micro power radio communication chip:
As mentioned above, just can realize comparatively fully the present invention.The foregoing is only comparatively reasonably embodiment of the present invention, protection scope of the present invention includes but are not limited to: this, and those skilled in the art is any to be included within the present invention includes scope based on unsubstantiality sex change change on technical solution of the present invention.
Claims (2)
1. an electric energy meter local communication modular device, is characterized in that: comprise Dual-mode communication chip, the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, single-chip microcomputer, carrier wave sends amplifying circuit, wave reception filtering circuit, the carrier wave coupling circuit, helical antenna, radio frequency converting switch, printed circuit board (PCB), communication module box, described carrier wave coupling circuit send amplifying circuit with carrier wave respectively, wave reception filtering circuit connects, the bimodulus Dual-mode communication chip respectively with the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, single-chip microcomputer, carrier wave sends amplifying circuit, wave reception filtering circuit connects, radio frequency converting switch respectively with the wireless transmission amplifying circuit, the wireless receiving amplifying circuit, radio frequency converting switch connects, and described single-chip microcomputer is by bus and carrier wave coupling circuit, helical antenna, radio frequency converting switch connects, and described printed circuit board (PCB) is positioned at communication module box, and described helical antenna is positioned at the right-hand member of printed circuit board (PCB), and described dual mode communication chip is positioned at the top in the middle of printed circuit board (PCB), wireless transmission amplifying circuit, the wireless receiving amplifying circuit is positioned at the printed circuit board (PCB) upper right quarter, single-chip microcomputer is positioned at the printed circuit board (PCB) upper left quarter, carrier wave sends amplifying circuit and accepts filtering circuit and is positioned at the printed circuit board (PCB) lower left quarter, leave neutral gear in described helical antenna left side, this neutral is 1/3 of printed circuit board area, is not provided with any circuit and components and parts in this neutral.
2. a kind of electric energy meter local communication modular device according to claim 1, it is characterized in that: described printed circuit board (PCB) is provided with four layers, centre is two-layer is ground, and the ground on printed circuit board (PCB) is provided with several via holes, and with the ground of the pros and cons of printed circuit board (PCB) and middle two-layer ground conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103257520A CN103400488A (en) | 2013-07-31 | 2013-07-31 | Local communication module device of watt-hour meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103257520A CN103400488A (en) | 2013-07-31 | 2013-07-31 | Local communication module device of watt-hour meter |
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| CN103400488A true CN103400488A (en) | 2013-11-20 |
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| CN2013103257520A Pending CN103400488A (en) | 2013-07-31 | 2013-07-31 | Local communication module device of watt-hour meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646524A (en) * | 2013-12-09 | 2014-03-19 | 洛阳愿景科技有限公司 | Communication method of double-mode local communication module device of electric energy meter |
| CN105931447A (en) * | 2016-07-04 | 2016-09-07 | 贵州电网有限责任公司电力科学研究院 | Downlink communication system of low-voltage power meter reading system and meter reading method |
| CN107393284A (en) * | 2017-09-01 | 2017-11-24 | 哈尔滨电工仪表研究所 | A kind of electric energy meter communicator |
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| US20080117077A1 (en) * | 2006-06-20 | 2008-05-22 | Ovidiu Ratiu | Automatic Meter Reading Communication |
| CN101425219A (en) * | 2007-10-29 | 2009-05-06 | 吉林市曼博科技有限公司 | Intelligent telemetering electric meter based on wireless sensor network |
| CN101762726A (en) * | 2010-01-03 | 2010-06-30 | 东北电网有限公司通辽供电公司 | Remote-control household electric meter |
| CN203351013U (en) * | 2013-07-31 | 2013-12-18 | 洛阳愿景科技有限公司 | Local communication module device for electric energy meter |
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2013
- 2013-07-31 CN CN2013103257520A patent/CN103400488A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080117077A1 (en) * | 2006-06-20 | 2008-05-22 | Ovidiu Ratiu | Automatic Meter Reading Communication |
| CN101425219A (en) * | 2007-10-29 | 2009-05-06 | 吉林市曼博科技有限公司 | Intelligent telemetering electric meter based on wireless sensor network |
| CN101762726A (en) * | 2010-01-03 | 2010-06-30 | 东北电网有限公司通辽供电公司 | Remote-control household electric meter |
| CN203351013U (en) * | 2013-07-31 | 2013-12-18 | 洛阳愿景科技有限公司 | Local communication module device for electric energy meter |
Non-Patent Citations (1)
| Title |
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| 潘宇星 等: "一种静止式三相多功能电能表的设计", 《四川大学学报（自然科学版）》, vol. 41, 31 October 2004 (2004-10-31), pages 239 - 242 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646524A (en) * | 2013-12-09 | 2014-03-19 | 洛阳愿景科技有限公司 | Communication method of double-mode local communication module device of electric energy meter |
| CN103646524B (en) * | 2013-12-09 | 2016-04-13 | 洛阳愿景科技有限公司 | A kind of communication means of double-mode local communication module device of electric energy meter |
| CN105931447A (en) * | 2016-07-04 | 2016-09-07 | 贵州电网有限责任公司电力科学研究院 | Downlink communication system of low-voltage power meter reading system and meter reading method |
| CN107393284A (en) * | 2017-09-01 | 2017-11-24 | 哈尔滨电工仪表研究所 | A kind of electric energy meter communicator |
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Application publication date: 20131120 |