CN112994751A - Broadband coupling device - Google Patents
Broadband coupling device Download PDFInfo
- Publication number
- CN112994751A CN112994751A CN202110149729.5A CN202110149729A CN112994751A CN 112994751 A CN112994751 A CN 112994751A CN 202110149729 A CN202110149729 A CN 202110149729A CN 112994751 A CN112994751 A CN 112994751A
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- module
- frequency
- signal
- coupling device
- resonance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a broadband coupling device, which comprises a signal transceiving module, a signal receiving module and a signal transmitting module, wherein the signal transceiving module is used for receiving and transmitting signals; the frequency detection module is used for detecting the frequency of a high-frequency signal sent by the carrier machine and calculating resonance; the resonance capacitor switching module is used for switching the gear of the resonance capacitor so that the high-frequency signal does not have power attenuation after passing through the broadband coupling device; and the power supply module is used for supplying power to all modules in the device. The signal receiving and transmitting module is respectively connected with the frequency monitoring module and the abhorent capacitor switching module. The invention can automatically detect the high-frequency broadband signal sent by the carrier machine and quickly switch the resonance capacitor, and the high-frequency signal is enabled to have no power attenuation after passing through the broadband coupling device in a resonance compensation mode, thereby realizing zero insertion loss. The power of the signal feed network is ensured, and the communication capability is enhanced.
Description
Technical Field
The invention relates to the technical field of medium-voltage carrier communication, in particular to a broadband coupling device.
Background
The power line carrier technology is widely applied to low voltage 220V and 380V, the application of the power line carrier technology to medium and high voltage lines is gradually deepened, and the low frequency communication speed cannot meet the existing service interaction requirements along with the development of marketing and distribution network deepened application.
In a high-frequency communication scene, the existing products applied to low-voltage and medium-voltage ground cable lines are more inductive couplers, and the attenuation occupation ratio of the inductive couplers to signals is not small, so that the signal feed network power can be seriously reduced, the signal transmission distance is shortened, communication connection cannot be established between devices in the communication networking process, the online rate of the devices is further influenced, and the data assessment index of a user is influenced.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides a broadband coupling device, when communication is carried out between carrier devices, the broadband coupling device can automatically detect a high-frequency broadband signal sent by a carrier machine and quickly switch a resonance capacitor, and the high-frequency signal is enabled to pass through the broadband coupling device without power attenuation in a resonance compensation mode, so that zero insertion loss is realized.
The purpose of the invention can be realized by the following technical scheme:
a broadband coupling device comprises
The signal transceiver module is used for receiving and transmitting signals;
the frequency detection module is used for detecting the frequency of a high-frequency signal sent by the carrier machine and calculating the frequency;
the resonance capacitor switching module is used for switching the gear of the resonance capacitor so that the high-frequency signal does not have power attenuation after passing through the broadband coupling device;
the power supply module is used for supplying power to all modules in the device;
the connection relationship among the modules is as follows: the signal receiving and transmitting module is respectively connected with the frequency monitoring module and the abhorent capacitor switching module.
Further, the working principle of the device is as follows: the transmitting end carrier machine sends out high-frequency signals, after the signals are transmitted to a signal receiving and transmitting module of the transmitting end broadband coupling device, a frequency monitoring module of the coupling device detects the frequency of the signals and calculates the frequency of the signals, a resonance capacitor switching module switches capacitors to corresponding gears according to a calculation result to realize resonance, then the signals are coupled to a power line through the signal receiving and transmitting module, the signals are transmitted to the signal receiving and transmitting module of the receiving end broadband coupling device through the power line, and the signals are transmitted to the receiving end carrier machine through the signal receiving and transmitting module.
The invention has the beneficial technical effects that: when the carrier equipment communicates, the device can automatically detect a high-frequency broadband signal sent by the carrier machine and quickly switch the resonant capacitor, and the high-frequency signal is enabled to pass through the broadband coupling device without power attenuation in a resonant compensation mode, so that zero insertion loss is realized. The power of the signal feed network is ensured, and the communication capability is enhanced.
Drawings
FIG. 1 is a schematic view of the internal connections of the device of the present invention.
Fig. 2 is a schematic diagram of the operation of the device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, a broadband coupling device includes a signal transceiver module for receiving and transmitting signals; the frequency detection module is used for detecting the frequency of a high-frequency signal sent by the carrier machine and calculating the frequency; the resonant capacitor switching module is used for switching the gear of the resonant capacitor so that the high-frequency signal does not have power attenuation after passing through the broadband coupling device; and the power supply module is used for supplying power to all modules in the device. The signal receiving and transmitting module is respectively connected with the frequency monitoring module and the abhorent capacitor switching module.
In the embodiment, a sending end carrier machine sends out a high-frequency signal, and after the signal is transmitted to a signal transceiver module of a sending end broadband coupling device, a frequency monitoring module of the coupling device detects the frequency of the signal and calculates resonance, and the resonance calculation method comprises the following steps:
2 pi f L1/(2 pi f C), and then C1/(4 pi f C)2*f2*L)；
According to the calculation result, the resonance capacitor switching module switches the capacitor to the corresponding gear to realize resonance, and then the signal is coupled to the power line through the signal transceiver module, transmitted to the signal transceiver module of the receiving end broadband coupling device through the power line, and transmitted to the receiving end carrier machine through the signal transceiver module, as shown in fig. 2. Comparing the output power of the port of the test equipment with the theoretical calculated value, the high-frequency signal has no power attenuation after passing through the broadband coupling device, zero insertion loss is realized, the signal feed network power is ensured, and the communication capability is enhanced.
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 (2)
1. A broadband coupling device, comprising
The signal transceiver module is used for receiving and transmitting signals;
the frequency detection module is used for detecting the frequency of a high-frequency signal sent by the carrier machine and calculating resonance;
the resonance capacitor switching module is used for switching the gear of the resonance capacitor so that the high-frequency signal does not have power attenuation after passing through the broadband coupling device;
the power supply module is used for supplying power to all modules in the device;
the connection relationship among the modules is as follows: the signal receiving and transmitting module is respectively connected with the frequency monitoring module and the abhorent capacitor switching module.
2. A broadband coupling device according to claim 1, wherein the device operates on the principle of: the transmitting end carrier machine sends out high-frequency signals, after the signals are transmitted to a signal receiving and transmitting module of the transmitting end broadband coupling device, a frequency monitoring module of the coupling device detects the signal frequency and calculates resonance, a resonance capacitance switching module switches a capacitor to a corresponding gear according to a calculation result to realize resonance, then the signals are coupled to a power line through the signal receiving and transmitting module, the signals are transmitted to the signal receiving and transmitting module of the receiving end broadband coupling device through the power line, and the signals are transmitted to the receiving end carrier machine through the signal receiving and transmitting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149729.5A CN112994751A (en) | 2021-02-03 | 2021-02-03 | Broadband coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149729.5A CN112994751A (en) | 2021-02-03 | 2021-02-03 | Broadband coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112994751A true CN112994751A (en) | 2021-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110149729.5A Withdrawn CN112994751A (en) | 2021-02-03 | 2021-02-03 | Broadband coupling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112994751A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006325163A (en) * | 2005-05-20 | 2006-11-30 | Toyota Industries Corp | Wide band transmitter/receiver |
| CN102447494A (en) * | 2011-12-31 | 2012-05-09 | 上海贝岭股份有限公司 | Broadband coupling circuit for multicarrier communication |
| CN203261135U (en) * | 2013-05-28 | 2013-10-30 | 东南大学 | Magnetic coupling resonant wireless power transmission apparatus having function of electricity larceny prevention |
| CN110022167A (en) * | 2017-12-28 | 2019-07-16 | 太阳能安吉科技有限公司 | Variable impedance circuit |
| CN111817753A (en) * | 2020-07-03 | 2020-10-23 | 青岛鼎信通讯股份有限公司 | Zero-insertion-loss medium-voltage coupling device |
-
2021
- 2021-02-03 CN CN202110149729.5A patent/CN112994751A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006325163A (en) * | 2005-05-20 | 2006-11-30 | Toyota Industries Corp | Wide band transmitter/receiver |
| CN102447494A (en) * | 2011-12-31 | 2012-05-09 | 上海贝岭股份有限公司 | Broadband coupling circuit for multicarrier communication |
| CN203261135U (en) * | 2013-05-28 | 2013-10-30 | 东南大学 | Magnetic coupling resonant wireless power transmission apparatus having function of electricity larceny prevention |
| CN110022167A (en) * | 2017-12-28 | 2019-07-16 | 太阳能安吉科技有限公司 | Variable impedance circuit |
| CN111817753A (en) * | 2020-07-03 | 2020-10-23 | 青岛鼎信通讯股份有限公司 | Zero-insertion-loss medium-voltage coupling device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210618 |