CN112332924A - High-voltage tower communication device and method - Google Patents
High-voltage tower communication device and method Download PDFInfo
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- CN112332924A CN112332924A CN202011080560.4A CN202011080560A CN112332924A CN 112332924 A CN112332924 A CN 112332924A CN 202011080560 A CN202011080560 A CN 202011080560A CN 112332924 A CN112332924 A CN 112332924A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/676—Optical arrangements in the receiver for all-optical demodulation of the input optical signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Optics & Photonics (AREA)
- Optical Communication System (AREA)
Abstract
The embodiment of the invention provides a high-voltage tower communication device and a method, wherein the device comprises: the device comprises a signal generating unit, a signal modulating unit, a signal transmitting unit and a signal receiving unit; the signal generating unit is used for acquiring the running state data of the high-voltage electric tower; the signal modulation unit is used for sending the running state data to a laser to obtain an optical carrier loaded with the running state data; a signal transmitting unit for transmitting the optical carrier to the signal receiving unit through an optical device; the signal receiving unit comprises a photoelectric detector and a signal analysis module; the photoelectric detector converts the optical carrier into an electric signal, and the signal analysis module analyzes the running state data according to the electric signal. The device sends the running state data to the signal receiving unit through the optical carrier, and the problems of electromagnetic interference and the like of the high-voltage electric tower can be eliminated due to the spatial transmission of the optical carrier, so that the signal damage can be reduced, and the accuracy of signal transmission is improved.
Description
Technical Field
The invention relates to the technical field of circuit communication, in particular to a high-voltage tower communication device and method.
Background
Along with the increasing abundance of people's lives, the application of various electrical appliances brings the change of covering the earth for people's lives, and also prompts the development of power grids towards higher density and higher voltage. The high-voltage electric tower is used as a core node of a power grid, has a very important function in the power grid, and needs to monitor the operation state of the high-voltage electric tower and transmit corresponding data in order to ensure the safe and effective operation of the high-voltage electric tower.
The operation state of the high-voltage electric tower is monitored and data transmission is carried out on the high-voltage electric tower to a ground control end, a signal transmission system needs to be constructed, and in the traditional signal transmission system, an electric signal is used as a transmission carrier, so that the influence of an electric field from the high-voltage electric tower can be caused, and the error of information transmission is caused.
Disclosure of Invention
The embodiment of the invention provides a high-voltage tower communication device and method, which are used for overcoming the defects in the prior art.
The embodiment of the invention provides a high-voltage tower communication device, which comprises: the device comprises a signal generating unit, a signal modulating unit, a signal transmitting unit and a signal receiving unit; the signal generating unit is used for acquiring the running state data of the high-voltage electric tower; the signal modulation unit is used for sending the running state data to a laser to obtain an optical carrier loaded with the running state data; the signal sending unit is used for sending the optical carrier to the signal receiving unit through an optical device; the signal receiving unit comprises a photoelectric detector and a signal analysis module; the photoelectric detector converts the optical carrier into an electric signal, and the signal analysis module analyzes the running state data according to the electric signal.
According to an embodiment of the present invention, the high-voltage tower communication device, the signal transmission unit includes: the grating comprises a first lens, a grating and a second lens, wherein the second lens is composed of a lens array; the optical carrier waves are focused by the first lens, optical signals are sent to the grating, the optical signals are divided into multiple paths through the grating, and the divided multiple paths of optical signals are focused by the multiple lenses of the second lens array respectively and then sent to the signal receiving unit.
According to the high-voltage tower communication device, the operation state data comprises a voltage signal or a current signal in the high-voltage tower.
According to the high-voltage electric tower communication device, the laser is a vertical cavity laser.
According to the high-voltage electric tower communication device, the multiple paths of optical signals correspond to the lenses of the lens array one by one.
According to the high-voltage tower communication device provided by the embodiment of the invention, the split multipath optical signals are equal-power signals.
According to the high-voltage electric tower communication device provided by the embodiment of the invention, the number of the photoelectric detectors is multiple, the signal analysis module obtains one path of electric signal according to each photoelectric detector, and analyzes the running state data according to the obtained multiple paths of electric signals
The embodiment of the invention also provides a high-voltage tower communication method, which comprises the following steps: acquiring operation state data of the high-voltage electric tower; sending the running state data to a laser to obtain an optical carrier loaded with the running state data; transmitting the optical carrier to a photodetector through an optical device; and converting the optical carrier into an electric signal through a photoelectric detector, and analyzing the running state data according to the electric signal.
According to the high-voltage electric tower communication device provided by the embodiment of the invention, the operation state data is sent to the signal receiving unit through the optical carrier, and the problems of electromagnetic interference and the like of the high-voltage electric tower can be eliminated due to the spatial transmission of the optical carrier, so that the signal damage can be reduced, and the accuracy of signal transmission is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high-voltage tower communication device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signal sending unit according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a high-voltage tower communication method according to an embodiment of the present invention;
description of reference numerals: 101. a signal generating unit; 102. a signal modulation unit; 103. a signal transmitting unit; 104. a signal receiving unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A high-voltage tower communication device according to an embodiment of the present invention is described below with reference to fig. 1 to 3. Fig. 1 is a schematic structural diagram of a high-voltage tower communication device according to an embodiment of the present invention, and as shown in fig. 1, the embodiment of the present invention provides a high-voltage tower communication device, including: a signal generation unit 101, a signal modulation unit 102, a signal transmission unit 103, and a signal reception unit 104; the signal generating unit 101 is used for acquiring the operating state data of the high-voltage electric tower; the signal modulation unit 102 is configured to send the operation state data to a laser to obtain an optical carrier loaded with the operation state data; the signal sending unit 103 is configured to send the optical carrier to the signal receiving unit through an optical device; the signal receiving unit 104 includes a photodetector and a signal analyzing module; the photoelectric detector converts the optical carrier into an electric signal, and the signal analysis module analyzes the running state data according to the electric signal.
At the top end of the high-voltage electric tower, the signal generating unit 101 stores data of an instrument for monitoring the operation state of the high-voltage electric tower into a memory and then sends the data to the signal modulating unit 102. The operation state data may be initial signal data of the electric tower, such as voltage and current waveforms, or information data obtained after processing and analysis, such as voltage variation and voltage and current values, and the following description will take the initial signal data of the electric tower as an example.
The signal modulation unit 102 may adopt a vertical cavity laser, which has the advantages of low cost, etc., and the transmitted status data electrical signal can make the amplitude of the optical signal output by the laser directly proportional to the current of the input status data by modulating the current of the laser, so that the optical carrier in the operating status of the high-voltage tower can be carried and further transmitted to the signal transmission unit 103. The problem of electromagnetic interference and the like of the high-voltage tower can be solved by the light carrier wave in space transmission, so that the signal damage can be reduced. The signal transmission unit 103 may be implemented by an optical instrument such as an optical lens.
The optical signal from the high-voltage electric tower is subjected to photoelectric conversion through the photoelectric detector, is converted into an electric signal, and is sent to the signal processing module for analysis. The electric signals are analyzed in the signal processing module to obtain corresponding running state data of the high-voltage electric tower, so that the running state of the high-voltage electric tower can be monitored and the control of the high-voltage electric tower can be realized.
According to the high-voltage electric tower communication device, the operation state data are sent to the signal receiving unit through the optical carrier, and the problems of electromagnetic interference and the like of the high-voltage electric tower can be eliminated due to the fact that the optical carrier is spread in space, so that signal damage can be reduced, and accuracy of signal transmission is improved.
Based on the content of the foregoing embodiment, as an alternative embodiment, the signal sending unit 103 includes: a first lens, a grating and a second lens (the second lens may be constituted by a lens array); the optical carrier is focused by the first lens, sends an optical signal to the grating, divides the optical signal into multiple paths by the grating, focuses the divided multiple paths of optical signals by the second lens (if the second lens is a lens array, the multiple lenses corresponding to the lens array are focused respectively), and sends the focused multiple paths of optical signals to the signal receiving unit.
Fig. 2 is a schematic structural diagram of a signal sending unit according to an embodiment of the present invention, in order to reduce a transmission error of a single-channel signal, in an embodiment of the present invention, optical signals are multiplexed. Therefore, the signal transmitting unit can equally divide the optical signal into equal power and then transmit the optical signal to the ground. The signal sending unit specifically comprises a first lens, a grating and a second lens, and is arranged in a mode that a laser of the signal modulation unit is positioned on a focus of the first lens, and the grating is positioned below the first lens and keeps a certain distance. The second lens is positioned below the grating, and the focal point of the lens is positioned at the position of the signal receiving unit on the ground. So that the optical signal can be focused on the photoelectric detector to realize the optical signal reception with the maximum power. Preferably, the second lens may be constituted by a lens array (i.e., a plurality of lenses).
The optical signal from the signal modulation unit 102 is first focused by the first lens, the focal point of the lens is located at the output end face of the laser, and the focused optical signal is projected onto the grating. The optical signal can be divided into a plurality of optical signals of equal power by the grating, and the number of the divided optical signals is related to the phase design of the grating (the number of the divided optical signals can be set by designing the phase depth, the phase conversion number and the phase conversion position of the grating). And each optical signal output by the grating is condensed by the second lens and then transmitted to the ground.
According to the high-voltage tower communication device, the influence of external interference on a single-path signal can be reduced through the transmission of the multi-path optical signal, and signal interruption caused by the loss of the single-path information is reduced.
Based on the above description of the embodiments, as an alternative embodiment, the operation state data includes a voltage signal or a current signal in the pylon. That is, the analog signal corresponding to the voltage signal or the current signal can be directly collected through the current transformer or the voltage transformer. Then, according to the amplitude of the current or voltage signal, optical signals with corresponding different amplitudes are generated.
Based on the content of the above embodiments, as an alternative embodiment, the laser is a vertical cavity laser, and the vertical cavity laser has the advantage of low cost.
Based on the content of the foregoing embodiments, as an alternative embodiment, the multiple optical signals correspond to multiple lenses of the lens array in a one-to-one manner. Each path of the multi-path signals after light splitting corresponds to one lens of the second lens array, and the transmission mode has smaller interference.
Based on the content of the foregoing embodiments, as an alternative embodiment, the multiplexed optical signals after being split are equal-power signals. Accordingly, to facilitate the uniformity of the photodetector and the analysis of the signal, the plurality of optical signals are set to be equal power signals.
Based on the content of the above embodiment, as an optional embodiment, the number of the photodetectors is multiple, and the signal analysis module obtains one path of electric signal according to each photodetector, and analyzes the operation state data according to the obtained multiple paths of electric signals.
Each photoelectric detector respectively carries out photoelectric conversion on one path of the received multipath signals to convert the received multipath signals into corresponding electric signals. The multiple photoelectric detectors obtain multiple paths of electric signals, and then the signal analysis module analyzes the multiple paths of electric signals and extracts the original running state data of the high-voltage electric tower. One way to achieve this is to compare multiple electrical signals, filter out several signals that differ significantly, and average the remaining multiple signals. Another implementation manner is that the electrical signal with the most number of signals is selected from the multiple electrical signals and used as the basis for finally analyzing and obtaining the operation state data. The specific implementation manner may be various, and is not described herein again.
The high-voltage tower communication method provided by the embodiment of the invention is described below, and the high-voltage tower communication method described below and the high-voltage tower communication device described above can be referred to correspondingly.
Fig. 3 is a schematic flow chart of a high-voltage tower communication method according to an embodiment of the present invention, and as shown in fig. 3, the high-voltage tower communication method includes:
301. acquiring operation state data of the high-voltage electric tower;
302. sending the running state data to a laser to obtain an optical carrier loaded with the running state data;
303. transmitting the optical carrier to a photodetector through an optical device;
304. and converting the optical carrier into an electric signal through a photoelectric detector, and analyzing the running state data according to the electric signal.
The method embodiment provided by the embodiment of the present invention is implemented by the embodiments of the apparatuses described above, and for details of the process and the details, reference is made to the embodiments of the apparatuses described above, which are not described herein again.
According to the high-voltage electric tower communication method provided by the embodiment of the invention, the operation state data is sent to the signal receiving unit through the optical carrier, and the problems of electromagnetic interference and the like of the high-voltage electric tower can be eliminated due to the spatial transmission of the optical carrier, so that the signal damage can be reduced, and the accuracy of signal transmission is improved.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the apparatus according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A high-voltage tower communication device, comprising:
the device comprises a signal generating unit, a signal modulating unit, a signal transmitting unit and a signal receiving unit;
the signal generating unit is used for acquiring the running state data of the high-voltage electric tower;
the signal modulation unit is used for sending the running state data to a laser to obtain an optical carrier loaded with the running state data;
the signal sending unit is used for sending the optical carrier to the signal receiving unit through an optical device;
the signal receiving unit comprises a photoelectric detector and a signal analysis module;
the photoelectric detector converts the optical carrier into an electric signal, and the signal analysis module analyzes the running state data according to the electric signal.
2. The high voltage tower communication device of claim 1, wherein the signal transmission unit comprises:
the grating comprises a first lens, a grating and a second lens, wherein the second lens is composed of a lens array;
the optical carrier waves are focused by the first lens, optical signals are sent to the grating, the optical signals are divided into multiple paths through the grating, and the divided multiple paths of optical signals are focused by the multiple lenses of the second lens array respectively and then sent to the signal receiving unit.
3. The device of claim 1, wherein the operational status data comprises a voltage signal or a current signal in a pylon.
4. The high voltage tower communication device according to claim 1, wherein the laser is a vertical cavity laser.
5. The high voltage tower communication device of claim 2, wherein the plurality of optical signals correspond one-to-one to a plurality of lenses of a lens array.
6. The apparatus according to claim 2, wherein the demultiplexed optical signals are equal power signals.
7. The high-voltage tower communication device according to claim 2, wherein the number of the photodetectors is multiple, and the signal analysis module obtains one path of electrical signals according to each photodetector and analyzes the operation state data according to the obtained multiple paths of electrical signals.
8. A high voltage power tower communication method, comprising:
acquiring operation state data of the high-voltage electric tower;
sending the running state data to a laser to obtain an optical carrier loaded with the running state data;
transmitting the optical carrier to a photodetector through an optical device;
and converting the optical carrier into an electric signal through a photoelectric detector, and analyzing the running state data according to the electric signal.
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| CN202011080560.4A CN112332924A (en) | 2020-10-10 | 2020-10-10 | High-voltage tower communication device and method |
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| CN202011080560.4A CN112332924A (en) | 2020-10-10 | 2020-10-10 | High-voltage tower communication device and method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201075123Y (en) * | 2007-09-10 | 2008-06-18 | 中国电力科学研究院 | Device for measuring high potential current |
| CN201918010U (en) * | 2010-12-17 | 2011-08-03 | 中国科学院电工研究所 | Voltage-current collecting and transmitting device for high-voltage system |
| CN103091591A (en) * | 2013-02-04 | 2013-05-08 | 北京电力设备总厂 | Real-time monitoring method and real-time monitoring system for high-voltage electric reactor |
| CN109557618A (en) * | 2019-01-28 | 2019-04-02 | 上海高意激光技术有限公司 | WDM device |
-
2020
- 2020-10-10 CN CN202011080560.4A patent/CN112332924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075123Y (en) * | 2007-09-10 | 2008-06-18 | 中国电力科学研究院 | Device for measuring high potential current |
| CN201918010U (en) * | 2010-12-17 | 2011-08-03 | 中国科学院电工研究所 | Voltage-current collecting and transmitting device for high-voltage system |
| CN103091591A (en) * | 2013-02-04 | 2013-05-08 | 北京电力设备总厂 | Real-time monitoring method and real-time monitoring system for high-voltage electric reactor |
| CN109557618A (en) * | 2019-01-28 | 2019-04-02 | 上海高意激光技术有限公司 | WDM device |
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Application publication date: 20210205 |