CN210518320U - Signal switching device for low-voltage power line - Google Patents
Signal switching device for low-voltage power line Download PDFInfo
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Abstract
The application relates to a low-voltage power line signal switching device.A communication module is connected with a first power line wireless router through a first connecting line; the first power line wireless router is connected with the second power line wireless router through a low-voltage power line; the second power line wireless router is connected with the power application terminal. On one hand, the existing low-voltage power line is utilized, so that the dual-purpose one-line power line is realized, the wiring of a power communication cable is not needed, and the cost is saved; on the other hand, the underground power monitoring system has the advantage of long stable transmission distance in an underground space, has stronger anti-jamming capability compared with wireless transmission, and can meet the requirement of a power monitoring and monitoring terminal in an underground electric room far away from an entrance and an exit of a basement; on the other hand, the socket can be flexibly assembled, disassembled and carried, can be used in a plug-and-play mode, does not need additional wiring, and is very convenient to expand and maintain; the problem of adding signal amplifier signal unstability is solved to and install gain antenna installation difficulty, the expense is too high, the effect is unsatisfactory has been solved.
Description
Technical Field
The application relates to the field of signal transmission of underground spaces, in particular to a low-voltage power line signal switching device.
Background
At present, various monitoring terminals for operation of a distribution network have two main communication modes: wireless communications and private networks; the monitoring and monitoring terminal comprises a power distribution automation terminal DTU, a metering automation terminal TTU, a centralized meter reading and centralized communication terminal and the like; wireless communication is achieved through a public, i.e., public, network, and private networks include fiber optic communications, carrier waves, and the like. Because the cost of the private network communication is too high, the most common communication method at present is the wireless public network communication method. The terminals using the wireless public network communication need to be installed at the positions covered by the signals, but most of the power monitoring and monitoring terminals located in the city center are installed in underground electric rooms with one to three floors, such as residential buildings, office buildings or superstores, and the signal values of the wireless public network in the areas are generally lower than the lower operation limit value of minus 90dB, so that the power monitoring and monitoring terminals cannot normally operate.
For the above problem, there are two conventional solutions.
The first method is to add a wireless public network signal amplifier to relay and amplify wireless signals near the entrance and exit of the basement. One of the disadvantages of this method is that once the electric room is located deep in an underground parking lot with a large area, or is located at a negative three-storey underground, on one hand, the signal amplification effect is poor due to the distance from the entrance and exit of the basement, and the situation that the signal is unstable or even has no signal is easy to occur; on the other hand, the power supply of the signal amplifier is generally taken from the adjacent lighting line, and a situation where there is no signal due to the power failure of the lighting line in the parking lot portion occurs occasionally. Therefore, the operation of this method is not ideal,
the second method is to install a "gain antenna" for each terminal. The gain antenna is that an antenna with higher gain is installed on the ground, and a high-frequency cable is used for leading an antenna signal to a terminal. This approach requires the addition of long high frequency communication cables to bring the booster antenna from the basement to the ground. Because the power monitoring and monitoring terminal is usually installed in the last step, no special weak current pipeline is reserved in the building infrastructure, and the high-frequency communication cable is additionally arranged to pass through the floor. Although the cable is installed reluctantly, the natural signal attenuation rate of the high-frequency communication cable is large due to the fact that the cable is bent more, and the length of the longest cable capable of achieving an ideal signal effect is only 110 meters under general conditions. Therefore, for the electric room located in the deep part of the basement or on the three-storey underground, it is very difficult to install the gain antenna, and the installation cost is high, and the effect is not ideal.
Therefore, the traditional solution has the technical problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Therefore, there is a need for a low-voltage power line signal switching device that solves the problems of unstable signal and non-ideal effect of an additional signal amplifier, and the problems of difficult installation, high cost and non-ideal effect of an additional gain antenna.
A low-voltage power line signal switching device comprises a communication antenna, a communication module, a first connecting line, a first power line wireless router, a second power line wireless router and a second connecting line; the communication antenna is connected with the communication module; the communication module is connected with the first power line wireless router through the first connecting line; the first power line wireless router is used for being connected with the second power line wireless router through a low-voltage power line; the second power line wireless router is used for connecting a power application terminal through the second connecting line.
On one hand, the signal switching device of the low-voltage power line has two purposes by utilizing the existing low-voltage power line, and does not need to carry out wiring of a power communication cable, thereby saving the cost; on the other hand, the underground power monitoring system has the advantage of long stable transmission distance in an underground space, has stronger anti-jamming capability compared with wireless transmission, and can meet the requirement of a power monitoring and monitoring terminal in an underground electric room far away from an entrance and an exit of a basement; on the other hand, the socket can be flexibly assembled, disassembled and carried, can be used in a plug-and-play mode, does not need additional wiring, and is very convenient to expand and maintain; the problems of unstable signals and unsatisfactory effect of the signal amplifier are solved, and the problems of difficult installation, overhigh cost and unsatisfactory effect of the gain antenna are solved.
In one embodiment, the low-voltage power line signal switching device further comprises at least one intermediate power line wireless router, and when the number of the intermediate power line wireless routers is more than one, two adjacent intermediate power line wireless routers are connected through the low-voltage power line; the first power line wireless router, each intermediate power line wireless router, and the second power line wireless router are sequentially connected by a low-voltage power line.
In one embodiment, the communication antenna is integrally provided with the communication module.
In one embodiment, the first connection circuit comprises an RJ45 network cable, and the communication module and the first power line wireless router are respectively provided with an RJ45 connection port.
In one embodiment, the low-voltage power line signal adapter further comprises the power application terminal, the second connection line comprises an RJ45 network line, and the second power line wireless router and the power application terminal are respectively provided with an RJ45 connection port.
In one embodiment, the second power line wireless router is disposed in an underground environment.
In one embodiment, the first wireless power line router is also disposed in an underground environment.
In one embodiment, the distance between the first wireless power line router and the second wireless power line router is less than 600 meters.
In one embodiment, the low voltage power line signal transfer device further comprises the low voltage power line.
In one embodiment, the first power line wireless router and the second power line wireless router are respectively provided with a power access end for connecting the low-voltage power lines.
Drawings
Fig. 1 is a schematic structural connection diagram according to an embodiment of the present application.
Fig. 2 is a schematic structural connection diagram according to another embodiment of the present application.
Fig. 3 is a schematic structural connection diagram according to another embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment of the present application, a low voltage power line signal switching device includes a communication antenna, a communication module, a first connection line, a first power line wireless router, a second power line wireless router, and a second connection line; the communication antenna is connected with the communication module; the communication module is connected with the first power line wireless router through the first connecting line; the first power line wireless router is used for being connected with the second power line wireless router through a low-voltage power line; the second power line wireless router is used for connecting a power application terminal through the second connecting line. On one hand, the signal switching device of the low-voltage power line has two purposes by utilizing the existing low-voltage power line, and does not need to carry out wiring of a power communication cable, thereby saving the cost; on the other hand, the underground power monitoring system has the advantage of long stable transmission distance in an underground space, has stronger anti-jamming capability compared with wireless transmission, and can meet the requirement of a power monitoring and monitoring terminal in an underground electric room far away from an entrance and an exit of a basement; on the other hand, the socket can be flexibly assembled, disassembled and carried, can be used in a plug-and-play mode, does not need additional wiring, and is very convenient to expand and maintain; the problems of unstable signals and unsatisfactory effect of the signal amplifier are solved, and the problems of difficult installation, overhigh cost and unsatisfactory effect of the gain antenna are solved.
In one embodiment, the signal switching device of the low-voltage power line comprises a part of or the whole structure of the following embodiments; that is, the low voltage power line signal relay device includes some or all of the following features. In one embodiment, the low-voltage power line signal switching device comprises a communication antenna, a communication module, a first connecting line, a first power line wireless router, a second power line wireless router and a second connecting line; it can be understood that the communication antenna, the communication module, the first connecting line, the first power line wireless router, the second power line wireless router and the second connecting line may be self-developed products, or existing products purchased directly from the market, and the embodiments of the present application do not make any particular innovation on the structure of the existing products, and it is claimed that the connection mode of these structures and the specific application of the underground electric room far away from the underground space, such as the entrance and exit of the basement, are protected to solve the problems of unstable signal of the added signal amplifier, the non-ideal effect of the added signal amplifier, and the problems of difficult installation, high cost and non-ideal effect of the added gain antenna, and the communication module, the first power line wireless router and the second power line wireless router in these existing products, although the computer programs are involved to realize the functions, the improvement point of the embodiments of the present application is not in the computer programs, because the computer programs are all simple use of the existing programs, just as a computer which needs to have the wireless internet access function, the computer programs can be realized only by adding the network card on the basis of the original hardware, and the network card does not need to be re-programmed. That is, embodiments of the present application do not require special modification to these computer programs.
Further, in one embodiment, the communication module is separated from the second wireless power line router, and the communication module is arranged above the ground, and the second wireless power line router is located in an underground space. Namely, the low-voltage power line signal switching device comprises a communication antenna, a communication module, a first connecting line, a first power line wireless router, a second power line wireless router and a second connecting line; the communication antenna is connected with the communication module; the communication module is connected with the first power line wireless router through the first connecting line; the first power line wireless router is used for being connected with the second power line wireless router through a low-voltage power line; the second power line wireless router is used for connecting a power application terminal through the second connecting line; the communication module and the second power line wireless router are arranged in a separated mode, the communication module is arranged above the ground, and the second power line wireless router is located in an underground space. The rest of the examples are analogized. In one embodiment, the communication antenna is integrally provided with the communication module. The design is beneficial to protecting the communication module and avoiding the artificial interference on one hand; on the other hand has the longer advantage of stable transmission distance in secret space, and the interference killing feature is stronger for wireless transmission, can satisfy the demand of electric power monitoring monitor terminal in the secret electricity room far away from basement access & exit.
In one embodiment, the low-voltage power line signal switching device further comprises at least one intermediate power line wireless router, and when the number of the intermediate power line wireless routers is more than one, two adjacent intermediate power line wireless routers are connected through the low-voltage power line; the first power line wireless router, each intermediate power line wireless router, and the second power line wireless router are sequentially connected by a low-voltage power line. Further, in one embodiment, the low-voltage power line signal transfer device further includes at least two intermediate power line wireless routers. It is to be understood that, for the first wireless power line router, the intermediate wireless power line router, and the second wireless power line router, the embodiments of the present application are given different names for different expressions only, and they are all wireless power line routers in nature. The wireless router of the power line is commonly called as 'power modem', and can stably transmit network signals for 300-600 meters. The design is beneficial to prolonging the line connection length of the underground space, namely realizing relay transmission of a plurality of power line wireless routers, and forming a signal transmission effect similar to series connection, so that the underground signal can have enough transmission distance to realize signal transmission on the premise of not installing an optical cable or wiring a power communication cable; on the other hand, the power modem has stronger anti-interference capability compared with wireless transmission, can be flexibly assembled, disassembled and carried, is plug and play, does not need additional wiring, and is very convenient to expand and maintain.
In one embodiment, the first connection circuit comprises an RJ45 network cable, and the communication module and the first power line wireless router are respectively provided with an RJ45 connection port. In one embodiment, the low-voltage power line signal adapter further comprises the power application terminal, the second connection line comprises an RJ45 network line, and the second power line wireless router and the power application terminal are respectively provided with an RJ45 connection port. Further, in one embodiment, the low-voltage power line signal switching device further includes the power application terminal; in one embodiment, the power application terminal includes at least one of a distribution automation terminal, a metering automation terminal, a load management terminal, a centralized meter reading communication terminal, an electric room environment monitoring terminal and an electric room security terminal. In one embodiment, the power application terminal comprises a distribution automation terminal, a metering automation terminal, a load management terminal, a centralized meter reading communication terminal, an electric room environment monitoring terminal or an electric room security terminal. In one embodiment, the power application terminal comprises a distribution automation terminal, a metering automation terminal, a load management terminal, a centralized meter reading communication terminal, an electric room environment monitoring terminal and an electric room security terminal. Due to the design, the low-voltage power line signal switching device can be matched with a large number of existing power application terminals for use, control data are guaranteed to be issued in place, effective uploading of the application data is guaranteed, the requirements of power monitoring terminals in underground electric rooms far away from entrances and exits of basements can be met, and the low-voltage power line signal switching device is also suitable for achieving data transmission environments of underground spaces.
Further, in one embodiment, the second power line wireless router is disposed in an underground environment. In one embodiment, the first wireless power line router is also disposed in an underground environment. That is, the first power line wireless router and the second power line wireless router are both disposed in an underground environment. The rest of the examples are analogized. Further, in one embodiment, the power application terminal is also disposed in an underground environment. Such design has the longer advantage of stable transmission distance in underground space, and is stronger for wireless transmission interference killing feature, can satisfy the demand of electric power monitoring terminal in the secret electricity room far away from basement access & exit to can install and remove in a flexible way, carry, plug-and-play need not in addition the wiring, and the extension is all very convenient with the maintenance.
In one embodiment, the distance between the first wireless power line router and the second wireless power line router is less than 600 meters. In one embodiment, the first wireless power line router is spaced from the second wireless power line router by less than 500 meters. In one embodiment, the first wireless power line router is spaced from the second wireless power line router by less than 400 meters. In one embodiment, the first wireless power line router is spaced from the second wireless power line router by less than 300 meters. This distance is mainly determined by the performance of the power line wireless router itself, which includes the first power line wireless router and the second power line wireless router; the power line wireless router can stably transmit network signals to 300-600 m generally, so that the requirement of a power monitoring and monitoring terminal in an underground electric room far away from an entrance and an exit of a basement can be met; therefore, the distance between the first power line wireless router and the second power line wireless router is set or adjusted based on the actual measurement result of the self-produced or purchased power line wireless router. It will be appreciated that for embodiments having an intermediate power line wireless router, the spacing between two adjacent power line wireless routers is less than 600 meters; or the distance between two adjacent power line wireless routers is less than 500 meters; or the distance between two adjacent power line wireless routers is less than 400 meters; or the distance between two adjacent power line wireless routers is less than 300 meters; wherein the power line wireless router comprises the first power line wireless router, the intermediate power line wireless router and the second power line wireless router. Moreover, the wireless routers of the power lines are connected through low-voltage power lines; the design has the effect of long-distance stable connection, and is particularly suitable for being applied to underground spaces on the premise of not needing additional wiring.
In one embodiment, the low voltage power line signal transfer device further comprises the low voltage power line. In one embodiment, the low-voltage power line signal switching device comprises a communication antenna, a communication module, a first connecting line, a first power line wireless router, a low-voltage power line, a second power line wireless router and a second connecting line; the communication antenna is connected with the communication module; the communication module is connected with the first power line wireless router through the first connecting line; the first power line wireless router is connected with the second power line wireless router through a low-voltage power line; the second power line wireless router is used for connecting a power application terminal through the second connecting line. The rest of the examples are analogized. In one embodiment, the first power line wireless router and the second power line wireless router are respectively provided with a power access end for connecting the low-voltage power lines. The design has the advantages that the existing low-voltage power line is utilized, the dual-purpose function is realized, the wiring of a power communication cable is not needed, the cost is saved, the power cable can be flexibly assembled and disassembled to be carried, the power cable can be used in a plug-and-play mode, the additional wiring is not needed, and the expansion and the maintenance are very convenient.
In one embodiment, as shown in fig. 1, the low voltage power line signal switching device includes a communication antenna, a communication module, a first connection line, a first power line modem, a low voltage power line, a second power line modem, and a second connection line, which are connected in sequence, and the second power line wireless router is configured to connect the power application terminal through the second connection line. In one embodiment, as shown in fig. 2, the low voltage power line signal switching device includes a communication antenna, a communication module, a first connection line, a first power line modem, a low voltage power line, a second power line modem, a second connection line, and a power application terminal, which are connected in sequence. In one embodiment, as shown in fig. 3, the low voltage power line signal adapter includes a communication antenna, a communication module, a first RJ45 line, a first power modem, a low voltage power line, a second power modem, a second RJ45 line, and a power application terminal, which are connected in sequence.
In one embodiment, the low-voltage power line signal switching device is mainly used for switching wireless public network signals by using a low-voltage power line. In one embodiment, the wireless public network is mobile network communication of three operators of mobile, communication and telecommunication. In the embodiments of the application, the low-voltage power line is used for switching the wireless public network signal, the network signal relay is performed through the power line network router, and the wireless public network signal is transmitted to the power application terminals of the underground electric room, such as the vicinity of various power monitoring terminals. Due to the design, the existing low-voltage power line is reasonably utilized, the dual-purpose power line has two purposes, the wiring of a power communication cable is not needed, and the cost is saved; and the transmission distance is long. The power modem can stably transmit network signals for 300-600 meters, and can meet the requirements of a power monitoring and monitoring terminal in an underground electric room far away from an entrance and an exit of a basement; the power modem performs signal relay transmission on network signals in a carrier modulation mode through a low-voltage line, and compared with wireless transmission, the power modem has stronger anti-interference capability and can stably transmit the signals; on the other hand, the power modem can be flexibly assembled, disassembled and carried, can be used in a plug-and-play mode, does not need additional wiring, is very convenient to expand and maintain, and improves the working efficiency; the price of the power modem is low; it is more advantageous that the communication module such as the wireless public network receiving end (wireless communication module) can be installed at the ground high-rise, the signal is stable and reliable, and there is no need to worry about the situation of external force damage or sudden interruption of other signals.
In one embodiment, the wireless public network signal is transmitted to various power terminals of the underground electric room through a low-voltage power line by using a power line wireless network router, specifically, an external communication module installed at a high-rise building is used for self-contained antenna, an RJ45 network line is used for connecting to a power modem 1, two power modems transmit network signals through the connection of the low-voltage power line, and finally an RJ45 network line is used for connecting the power terminals to a power modem 2, so that the wireless public network signal can be transmitted to the power application terminals in the underground electric room, such as a distribution automation terminal, for communication by using the existing low-voltage power line. In the embodiment, the communication antenna is a communication antenna carried by the communication module; the communication module is an external communication module matched with the distribution network automation terminal; the power modem 1 is a power line wireless router, a communication device for transmitting data and media signals by using a wire; the low-voltage power line is a distribution network 220V low-voltage power supply line; the power modem 2 is matched with the power modem 1 for use, so that a low-voltage power line is utilized to carry out network protocol communication relay transmission on the power monitoring and monitoring terminal; the method is applicable to various power application terminals in the power industry: the electric power application terminal comprises various monitoring terminals, a power distribution electric room automation Device (DTU), a metering automation terminal (TTU), a load management terminal, a centralized meter reading centralized communication terminal, an electric room environment monitoring terminal, an electric room security terminal and the like.
In addition, other embodiments of the present application further include a low-voltage power line signal transfer device that is formed by combining technical features of the above embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A low-voltage power line signal switching device is characterized by comprising a communication antenna, a communication module, a first connecting line, a first power line wireless router, a second power line wireless router and a second connecting line;
the communication antenna is connected with the communication module;
the communication module is connected with the first power line wireless router through the first connecting line;
the first power line wireless router is used for being connected with the second power line wireless router through a low-voltage power line;
the second power line wireless router is used for connecting a power application terminal through the second connecting line.
2. The device for transferring a signal on a low voltage power line according to claim 1, further comprising at least one wireless router on an intermediate power line, wherein when the number of the wireless routers on the intermediate power line is greater than one, two adjacent wireless routers on the intermediate power line are connected via the low voltage power line;
the first power line wireless router, each intermediate power line wireless router, and the second power line wireless router are sequentially connected by a low-voltage power line.
3. The low voltage power line signal transfer device of claim 1, wherein the communication antenna is integral with the communication module.
4. The apparatus of claim 1, wherein the first connection circuit comprises an RJ45 cable, and the communication module and the first power line wireless router are respectively provided with RJ45 connection ports.
5. The apparatus as claimed in claim 4, further comprising the power application terminal, wherein the second connection line comprises an RJ45 cable, and the second wireless router and the power application terminal are respectively provided with RJ45 connection ports.
6. The low voltage power line signal transfer device of claim 1, wherein the second wireless power line router is located in an underground environment.
7. The device of claim 6, wherein the first wireless power line router is also located in an underground environment.
8. The device of claim 6, wherein the first wireless power line router is spaced from the second wireless power line router by less than 600 meters.
9. The low voltage power line signal transition device of any one of claims 1 to 8, further comprising the low voltage power line.
10. The apparatus according to claim 9, wherein the first wireless power line router and the second wireless power line router are respectively provided with power access terminals for connecting the low voltage power lines.
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| CN201921831837.5U CN210518320U (en) | 2019-10-29 | 2019-10-29 | Signal switching device for low-voltage power line |
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| CN201921831837.5U CN210518320U (en) | 2019-10-29 | 2019-10-29 | Signal switching device for low-voltage power line |
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| CN112838881A (en) * | 2020-12-31 | 2021-05-25 | 佳源科技有限公司 | Plug and Play IoT Power Broadband Carrier HPLC |
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| CN112838881A (en) * | 2020-12-31 | 2021-05-25 | 佳源科技有限公司 | Plug and Play IoT Power Broadband Carrier HPLC |
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Effective date of registration: 20200930 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
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