CN202513925U - Low voltage power line carrier communication device - Google Patents
Low voltage power line carrier communication device Download PDFInfo
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- CN202513925U CN202513925U CN2012200260274U CN201220026027U CN202513925U CN 202513925 U CN202513925 U CN 202513925U CN 2012200260274 U CN2012200260274 U CN 2012200260274U CN 201220026027 U CN201220026027 U CN 201220026027U CN 202513925 U CN202513925 U CN 202513925U
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- switch control
- control assembly
- adjustment component
- voltage power
- adaptive adjustment
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Abstract
The utility model provides a low voltage power line carrier communication device which comprises a power adaptive adjustment part whose first end is connected with a line wire in a low voltage power line through an inductor and a switch control part whose first end is connected with a second end of the power adaptive adjustment part and whose second end is connected with a zero line in the low voltage power line. According to the utility model, problems that high frequency interference is generated on a circuit in modulation, a transmission distance of a low voltage power line carrier is limited and reliability is not high in the related technology are solved, anti-interference performance of a line is raised, the transmission distance of the low voltage power line carrier is raised, and improvement of the reliability of the low voltage power line carrier is promoted.
Description
Technical field
The utility model relates to low-voltage power line power frequency communication field, in particular to a kind of low voltage power line carrier communication device.
Background technology
At present; Can utilize existing power line network to carry out data communication; To realize the low voltage power line carrier communication, this communication modes is checked meter at water, electricity is checked meter, gas is checked meter, Smart Home control and the realization of aspect such as electric load control is very convenient economy.Yet when carrying out the low voltage power line carrier communication, low voltage power line carrier adopts conventional carrier wave and extension frequency carrier mostly; When modulation, there is a large amount of harmonic waves to get into electrical network, circuit is produced High-frequency Interference; Reduced the anti-interference of circuit, simultaneously, because electrical network is bigger to the attenuation of conventional carrier wave and extension frequency carrier; Cause the distance of low voltage power line carrier transmission to receive certain restriction, and reliability is also poor more when transmission range is far away.
The utility model content
The utility model provides a kind of low voltage power line carrier communication device, to solve in the correlation technique problem that circuit is produced High-frequency Interference at least.
An aspect according to the utility model provides a kind of low voltage power line carrier communication device, and it comprises: the power adaptive adjustment component, and first end of power adaptive adjustment component is connected with live wire in the low-voltage power line through inductance; The switch control assembly, first end of switch control assembly is connected with second end of power adaptive adjustment component, and second end of switch control assembly is connected with the zero line in the low-voltage power line.
Preferably, the power adaptive adjustment component comprises: resistance value becomes big power adjustment component greatly with electrorheological.
Preferably, the power adaptive adjustment component comprises: the thermistor of positive temperature coefficient.
Preferably, the power adaptive adjustment component comprises: the first power adaptive adjustment component, and first end of the first power adaptive adjustment component is connected with first phase firewire in the low-voltage power line through first inductance; The second power adaptive adjustment component, first end of the second power adaptive adjustment component is connected with second phase firewire in the low-voltage power line through second inductance; The 3rd power adaptive adjustment component, first end of the 3rd power adaptive adjustment component is connected with third phase live wire in the low-voltage power line through the 3rd inductance; The switch control assembly comprises: the first switch control assembly, and first end of the first switch control assembly is connected with second end of the first power adaptive adjustment component, and second end of the first switch control assembly is connected with the zero line in the low-voltage power line; The second switch control assembly, first end of second switch control assembly is connected with second end of the second power adaptive adjustment component, and second end of second switch control assembly is connected with the zero line in the low-voltage power line; The 3rd switch control assembly, first end of the 3rd switch control assembly is connected with second end of the 3rd power adaptive adjustment component, and second end of the 3rd switch control assembly is connected with the zero line in the low-voltage power line.
Preferably, above-mentioned low voltage power line carrier communication device also comprises: the optocoupler control circuit, and wherein, first output of optocoupler control circuit is connected with the first switch control assembly through the transmission line that transmits first control signal; Second output of optocoupler control circuit is connected with the second switch control assembly through the transmission line of transmission second control signal; The 3rd output of optocoupler control circuit is connected with the 3rd switch control assembly through the transmission line of transmission the 3rd control signal, and wherein, first control signal, second control signal and the 3rd control signal time interval each other equate.
Preferably, the switch control assembly comprises: SCR (Signal Corps Radio, controllable silicon).
Preferably, above-mentioned low voltage power line carrier communication device also comprises: the optocoupler control circuit, the transmission line through the transmitting switch control signal is connected with the switch control assembly.
Preferably, above-mentioned low voltage power line carrier communication device also comprises: first connectivity port adaptive with concentrator.
Preferably, above-mentioned low voltage power line carrier communication device also comprises: second connectivity port adaptive with the terminal R-T unit.
In the utility model, first end of power adaptive adjustment component is connected with live wire in the low-voltage power line through inductance, and second end is connected with first end of switch control assembly; Second end of switch control assembly is connected with the zero line in the low-voltage power line; Promptly realize inductance, power adaptive adjustment component and switch control assembly are connected in series successively in low-voltage circuit, cooperate through power adaptive adjustment component and inductance and can carry out automatically the power in the circuit, dynamically adjust, to guarantee when modulating; Make the harmonic wave that gets into electrical network significantly reduce; Guarantee that the waveform in the circuit is in metastable state, to reduce the High-frequency Interference that modulation produces circuit, simultaneously; The signal in the circuit is carried out the control of conducting state through the switch control assembly; Improving the transmission range of signal, when having solved the modulation in the correlation technique circuit produced the distance limited system and the not high problem of reliability of High-frequency Interference and low voltage power line carrier transmission, thereby improved the anti-interference of circuit; Improve the transmission range of low voltage power line carrier, helped to improve the reliability of low voltage power line carrier.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation according to the preferred low voltage power line carrier communication device of the utility model embodiment;
Fig. 2 is the structural representation according to the another kind of preferred low voltage power line carrier communication device of the utility model embodiment;
Fig. 3 is the structural representation according to another preferred low voltage power line carrier communication device of the utility model embodiment;
Fig. 4 is the structural representation according to the application system of the preferred low voltage power line carrier communication device of the utility model embodiment.
Embodiment
Hereinafter will and combine embodiment to specify the utility model with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Fig. 1 is the structural representation according to the preferred low voltage power line carrier communication device of the utility model embodiment; As shown in Figure 1; This low voltage power line carrier communication device comprises: power adaptive adjustment component 102, and first end of power adaptive adjustment component 102 is connected with live wire L in the low-voltage power line through inductance 106; Switch control assembly 104, first end of switch control assembly 104 is connected with second end of power adaptive adjustment component 102, and second end of switch control assembly 104 is connected with zero line N in the low-voltage power line.
In above-mentioned preferred embodiment; First end of power adaptive adjustment component 102 is connected with live wire L in the low-voltage power line through inductance 106; Second end is connected with first end of switch control assembly 104, and second end of switch control assembly 104 is connected with zero line N in the low-voltage power line, promptly realizes inductance 106, power adaptive adjustment component 102 and switch control assembly 104 are connected in series successively in low-voltage circuit; Can carry out automatically the power in the circuit, dynamically adjust through power adaptive adjustment component 102 and inductance 106 cooperations; To guarantee when modulating, make the harmonic wave that gets into electrical network significantly reduce, guarantee that the waveform in the circuit is in metastable state; To reduce the High-frequency Interference that modulation produces circuit; Simultaneously, carry out the control of conducting state, to improve the transmission range of signal through the signal in 104 pairs of circuits of switch control assembly; When having solved the modulation in the correlation technique circuit produced the distance limited system and the not high problem of reliability of High-frequency Interference and low voltage power line carrier transmission; Thereby improved the anti-interference of circuit, improved the transmission range of low voltage power line carrier, helped to improve the reliability of low voltage power line carrier.
For automatically, dynamically adjust power in the circuit; The utility model provides a kind of preferred power adaptive adjustment component 102; This power adaptive adjustment component 102 can be that resistance value becomes big power adjustment component greatly with electrorheological, and when electrorheological so in the line was big, the power adjustment component can dynamically increase the resistance value of self; Thereby the performance number in the reduction circuit is to realize in real time, dynamically guaranteeing the waveform stabilization in the circuit.
The thermistor (PTC) that above-mentioned power adaptive adjustment component 102 can be a positive temperature coefficient; To realize automatically, dynamically adjusting the power in the circuit; When the electrorheological in the circuit was big, it is big that the resistance value of the thermistor of positive temperature coefficient becomes, and makes power reduction in the circuit; To guarantee the waveform stabilization in the circuit, help the anti-interference of enhancing line.
For realizing that each the phase circuit in the circuit is carried out the power adjustment; The utility model provides a kind of preferred power adaptive adjustment component 102 and switch control assembly 104; Particularly; As shown in Figure 2, this power adaptive adjustment component 102 comprises: first end of the first power adaptive adjustment component, 1021, the first power adaptive adjustment component 1021 is connected with the first phase firewire LA in the low-voltage power line through first inductance 1061; First end of the second power adaptive adjustment component, 1022, the second power adaptive adjustment component 1022 is connected with the second phase firewire LB in the low-voltage power line through second inductance 1062; First end of the 3rd power adaptive adjustment component 1023, the three power adaptive adjustment component 1023 is connected with third phase live wire LC in the low-voltage power line through the 3rd inductance 1063; Switch control assembly 104 comprises: the first switch control assembly 1041; First end of the first switch control assembly 1041 is connected with second end of the first power adaptive adjustment component 1021, and second end of the first switch control assembly 1041 is connected with zero line N in the low-voltage power line; Second switch control assembly 1042, first end of second switch control assembly 1042 is connected with second end of the second power adaptive adjustment component 1022, and second end of second switch control assembly 1042 is connected with zero line N in the low-voltage power line; First end of the 3rd switch control assembly 1043, the three switch control assemblies 1043 is connected with second end of the 3rd power adaptive adjustment component 1023, and second end of the 3rd switch control assembly 1043 is connected with zero line N in the low-voltage power line.In the present embodiment; First end of the first power adaptive adjustment component 1021, the second power adaptive adjustment component 1022 and the 3rd power adaptive adjustment component 1023 of power adaptive adjustment component 102 respectively through first inductance 1061, through second inductance 1062 and through the 3rd inductance 1063 respectively successively with low-voltage power line in the first phase firewire LA, the second phase firewire LB and third phase live wire LC be connected; First end of the first switch control assembly 1041, second switch control assembly 1042 and the 3rd switch control assembly 1043 of switch control assembly 104 is connected with second end of the first power adaptive adjustment component 1021, the second power adaptive adjustment component 1022 and the 3rd power adaptive adjustment component 1023 respectively successively; And second end of the first switch control assembly 1041, second switch control assembly 1042 and the 3rd switch control assembly 1043 all with low-voltage power line in zero line N be connected; Be implemented in and all be connected with above-mentioned low voltage power line carrier communication device on each phase line in the low-voltage power line; When modulation, can adjust the power of each phase line; To reduce the High-frequency Interference of modulation to electrical network; Strengthen the anti-interference of electrical network, reliability.
For improving the transmission range of communication; As shown in Figure 3, above-mentioned low voltage power line carrier communication device also comprises: optocoupler control circuit 108, wherein; First output 1 of optocoupler control circuit 108 is connected with the first switch control assembly 1041 through the transmission line that transmits first control signal; Second output 2 of optocoupler control circuit 108 is connected with second switch control assembly 1042 through the transmission line of transmission second control signal; The 3rd output 3 of optocoupler control circuit 108 is connected with the 3rd switch control assembly 1043 through the transmission line of transmission the 3rd control signal, and wherein, first control signal, second control signal and the 3rd control signal time interval each other equate.In the present embodiment; Through optocoupler control circuit 108 three kinds of different times control signal is at interval outputed to corresponding switch control assembly 104 respectively; Make switch control assembly 104 can according to the time interval of control signal control each control signal through or the state of no thoroughfare switch control assembly 104; Realize at a time; Have only a kind of control signal can pass through switch control assembly 104, make and to transmit farther distance, with reliability and the practicality that the utility model is provided through the control signal of switch control assembly 104.
Preferably; First control signal in the above-mentioned preferred embodiment, second control signal and the 3rd control signal time interval each other equate; For example, in this preferred embodiment, the above-mentioned time interval can be 20/3ms; To be implemented in a period of time, have only a kind of control signal can pass through switch control assembly 104.
Preferably, above-mentioned switch control assembly 104 can but to be not limited to be controllable silicon (SCR), with the state that passes through according to each control signal of time interval controls of control signal.
Preferably; As shown in Figure 3; Above-mentioned low voltage power line carrier communication device also comprises: optocoupler control circuit 108, the transmission line through the transmitting switch control signal is connected with switch control assembly 104, with the state that passes through according to each control signal of time interval controls of control signal.Preferably, by the I/O pin of CPU switch control assembly 104 is modulated control through the optocoupler control circuit, data communication is carried out near the small distortion that voltage and current produces voltage over zero according to coding rule.
On the basis of above-mentioned each preferred embodiment, for strengthening the practicality of the utility model, above-mentioned low voltage power line carrier communication device is provided with first connectivity port adaptive with concentrator.In the present embodiment, the low voltage power line carrier communication device can be installed in the concentrator through first connectivity port, to realize that the uplink and downlink signals in the circuit is carried out the power adjustment, with anti-interference and the reliability that improves whole circuit.
On the basis of above-mentioned each preferred embodiment, for strengthening the practicality of the utility model, above-mentioned low voltage power line carrier communication device is provided with second connectivity port adaptive with the terminal R-T unit.In the present embodiment; The low voltage power line carrier communication device can be installed in the R-T unit of terminal through second connectivity port, to realize that the uplink and downlink signals in the circuit is carried out the power adjustment, with anti-interference and the reliability that improves whole circuit; Simultaneously; Also improve the practicality of present embodiment, simultaneously, can improve the whole anti-interference of circuit.
Preferably; Fig. 4 is the structural representation according to the application system of the preferred low voltage power line carrier communication device of the utility model embodiment; As shown in Figure 4; The application system of this low voltage power line carrier communication device is by a master station device-concentrator, and a plurality of terminals R-T unit and low-voltage power spider lines constitute.From the signal of concentrator R-T unit transmission to the terminal is the downgoing communication signal, is the uplink communication signal by the terminal R-T unit to the signal that concentrator transmits, and concentrator is installed in the root of transformer; The terminal R-T unit comprises modulating unit and receiving element, and above-mentioned application system can comprise a plurality of terminals R-T unit, is example at this with two; The terminal R-T unit can be installed on arbitrary terminal node of low-voltage power line, and then above-mentioned low voltage power line carrier communication device then can carry out the power adjustment to uplink communication signal in the application system and/or downgoing communication signal respectively through being installed in concentrator and/or the terminal R-T unit with concentrator and/or the adaptive connectivity port of terminal R-T unit; Reduce the High-frequency Interference that modulation produces circuit; Improve the anti-interference of circuit, simultaneously, can improve the distance of communication signal transmission; Improve the reliability of communication signal; Need not change the power frequency electric power network yet, can utilize current common frequency power network to carry out data communication fully, make above-mentioned low voltage power line carrier communication device at street lamp control system; Application in the kilowatt meter reading-out system has great realistic significance, has improved the novel practicality of this use.
Preferably; In above-mentioned preferred embodiment; Above-mentioned low voltage power line carrier communication device can be realized both-way communication through corresponding receiving circuit, can solve the bus problem of mutual exclusion between each terminal R-T unit according to coding rule, to improve the reliability of circuit communication.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (9)
1. a low voltage power line carrier communication device is characterized in that, comprising:
The power adaptive adjustment component, first end of said power adaptive adjustment component is connected with live wire in the low-voltage power line through inductance;
The switch control assembly, first end of said switch control assembly is connected with second end of said power adaptive adjustment component, and second end of said switch control assembly is connected with zero line in the said low-voltage power line.
2. device according to claim 1 is characterized in that, said power adaptive adjustment component comprises: resistance value becomes big power adjustment component greatly with electrorheological.
3. device according to claim 1 and 2 is characterized in that, said power adaptive adjustment component comprises: the thermistor of positive temperature coefficient.
4. device according to claim 1 is characterized in that,
Said power adaptive adjustment component comprises:
The first power adaptive adjustment component, first end of the said first power adaptive adjustment component is connected with first phase firewire in the said low-voltage power line through first inductance;
The second power adaptive adjustment component, first end of the said second power adaptive adjustment component is connected with second phase firewire in the said low-voltage power line through second inductance;
The 3rd power adaptive adjustment component, first end of said the 3rd power adaptive adjustment component is connected with third phase live wire in the said low-voltage power line through the 3rd inductance;
Said switch control assembly comprises:
The first switch control assembly, first end of the said first switch control assembly is connected with second end of the said first power adaptive adjustment component, and second end of the said first switch control assembly is connected with zero line in the said low-voltage power line;
The second switch control assembly, first end of said second switch control assembly is connected with second end of the said second power adaptive adjustment component, and second end of said second switch control assembly is connected with zero line in the said low-voltage power line;
The 3rd switch control assembly, first end of said the 3rd switch control assembly is connected with second end of said the 3rd power adaptive adjustment component, and second end of said the 3rd switch control assembly is connected with zero line in the said low-voltage power line.
5. device according to claim 4 is characterized in that, also comprises: the optocoupler control circuit, and wherein, first output of said optocoupler control circuit is connected with the said first switch control assembly through the transmission line that transmits first control signal;
Second output of said optocoupler control circuit is connected with said second switch control assembly through the transmission line of transmission second control signal; The 3rd output of said optocoupler control circuit is connected with said the 3rd switch control assembly through the transmission line of transmission the 3rd control signal; Wherein, said first control signal, said second control signal and said the 3rd control signal time interval each other equate.
6. device according to claim 1 is characterized in that, said switch control assembly comprises: controllable silicon SCR.
7. device according to claim 6 is characterized in that, also comprises: the optocoupler control circuit, the transmission line through the transmitting switch control signal is connected with said switch control assembly.
8. device according to claim 1 is characterized in that, also comprises: first connectivity port adaptive with concentrator.
9. device according to claim 1 is characterized in that, also comprises: second connectivity port adaptive with the terminal R-T unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200260274U CN202513925U (en) | 2012-01-19 | 2012-01-19 | Low voltage power line carrier communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200260274U CN202513925U (en) | 2012-01-19 | 2012-01-19 | Low voltage power line carrier communication device |
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| CN202513925U true CN202513925U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200260274U Expired - Lifetime CN202513925U (en) | 2012-01-19 | 2012-01-19 | Low voltage power line carrier communication device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270173A (en) * | 2014-09-23 | 2015-01-07 | 杭州电子科技大学 | Device for conducting communication through power line |
| CN104283588A (en) * | 2014-09-23 | 2015-01-14 | 杭州电子科技大学 | Method for realizing communication through power line |
| CN107979393A (en) * | 2017-11-15 | 2018-05-01 | 广西师范学院 | A kind of power line carrier anti-interference communication device based on Big Dipper RDSS |
| CN110971271A (en) * | 2019-12-02 | 2020-04-07 | 成都长城开发科技有限公司 | Power grid test method and test system |
-
2012
- 2012-01-19 CN CN2012200260274U patent/CN202513925U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270173A (en) * | 2014-09-23 | 2015-01-07 | 杭州电子科技大学 | Device for conducting communication through power line |
| CN104283588A (en) * | 2014-09-23 | 2015-01-14 | 杭州电子科技大学 | Method for realizing communication through power line |
| CN104283588B (en) * | 2014-09-23 | 2016-08-24 | 杭州电子科技大学 | A kind of method using power line communication |
| CN107979393A (en) * | 2017-11-15 | 2018-05-01 | 广西师范学院 | A kind of power line carrier anti-interference communication device based on Big Dipper RDSS |
| CN110971271A (en) * | 2019-12-02 | 2020-04-07 | 成都长城开发科技有限公司 | Power grid test method and test system |
| CN110971271B (en) * | 2019-12-02 | 2021-05-07 | 成都长城开发科技有限公司 | Power grid test method and test system |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: BEIJING AIPU ZHICHENG NETWORK TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING ALONG TECHNOLOGY CO., LTD. Effective date: 20140603 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20140603 Address after: 100085 Beijing city Haidian District Third Street No. 9 E block 906 Patentee after: BEIJING AIPUZHICHENG NETWORK TECHNOLOGY CO., LTD. Address before: 100085, Room 903, block E, No. 9, 3rd Street, Beijing, Haidian District Patentee before: Beijing Along Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
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Granted publication date: 20121031 |