CN112383973A - Wireless network bridge - Google Patents
Wireless network bridge Download PDFInfo
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- CN112383973A CN112383973A CN202011217238.1A CN202011217238A CN112383973A CN 112383973 A CN112383973 A CN 112383973A CN 202011217238 A CN202011217238 A CN 202011217238A CN 112383973 A CN112383973 A CN 112383973A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/14—Backbone network devices
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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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
- H04B10/25758—Optical arrangements for wireless networks between a central unit and a single remote unit by means of an optical fibre
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0071—Provisions for the electrical-optical layer interface
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- Signal Processing (AREA)
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Abstract
The invention relates to a wireless network bridge comprising: the optical signal transmission module is used for transmitting a first optical signal; the first signal conversion module is connected with the optical signal transmission module and used for converting the first optical signal into a first electric signal; the electric signal transmission module is used for transmitting a second electric signal; the second signal conversion module is connected with the first signal conversion module and the electric signal transmission module and is used for converting the first electric signal and the second electric signal into a first analog signal; the wireless transceiving module is connected with the second signal conversion module and is used for converting the first analog signal into a radio frequency signal; and the antenna is connected with the wireless transceiving module and used for receiving and transmitting the radio frequency signal. The invention can transmit optical signals and electric signals, can realize multiple signal communication and is suitable for various scenes.
Description
Technical Field
The present invention relates to the field of wireless network bridge technology, and in particular, to a wireless network bridge.
Background
The existing mobile base station/camera monitoring uses wireless network bridge, microwave and other wireless transmission devices when data is transmitted back. When the base station/camera is connected with the wireless network bridge, the data interaction is carried out by arranging network cables.
However, the existing wireless bridges have the following problems: the access modes are POE (power on Ethernet) power ports, and the access mode is single, the power supply mode is single, and the method cannot be applied to various different scenes; only electric port transmission is supported, a network cable needs to be laid and a crystal head needs to be manufactured, the process is complicated, and the influence of the crystal head manufacturing process is easy to influence; the network cable is mainly deployed indoors, is not suitable for being exposed outside for a long time to be exposed and dried by the sun, and leaves hidden danger for the stability and safety of a later-stage signal source; adopt the ribbon fixed, unable change inclination and drop easily after the installation, increase the regulation and survey and the installation environment degree of difficulty.
Disclosure of Invention
The invention aims to provide a wireless bridge to realize multiple signal communication.
In order to achieve the purpose, the invention provides the following scheme:
a wireless bridge, comprising:
the optical signal transmission module is used for transmitting a first optical signal;
the first signal conversion module is connected with the optical signal transmission module and used for converting the first optical signal into a first electric signal;
the electric signal transmission module is used for transmitting a second electric signal;
the second signal conversion module is connected with the first signal conversion module and the electric signal transmission module and is used for converting the first electric signal and the second electric signal into a first analog signal;
the wireless transceiving module is connected with the second signal conversion module and is used for converting the first analog signal into a radio frequency signal;
the antenna is connected with the wireless transceiving module and used for receiving and transmitting the radio frequency signal;
the antenna is also used for receiving an external radio frequency signal and transmitting the external radio frequency signal to the wireless transceiving module; the wireless transceiver module is also used for converting the external radio frequency signal into a second analog signal; the second signal conversion module is further configured to convert the second analog signal into a third electrical signal; the electric signal transmission module is also used for outputting the third electric signal; the first signal conversion module is further configured to convert the third electrical signal into a second optical signal; the optical signal transmission module is further configured to output the second optical signal.
Optionally, the wireless network bridge further comprises a DC power supply module, configured to connect external alternating current, and convert the alternating current into direct current to supply power to the wireless network bridge;
optionally, the wireless network bridge further comprises a power module for directly supplying power to the wireless network bridge.
Optionally, the electrical signal transmission module is further configured to connect an external direct current to supply power to the wireless bridge.
Optionally, the second signal conversion module comprises an ethernet transceiver and a converter; the converter is respectively connected with the Ethernet transceiver, the first signal conversion module and the electric signal transmission module; the ethernet transceiver is configured to provide a physical layer protocol, and the converter is configured to convert the first electrical signal and the second electrical signal into a first analog signal according to the physical layer protocol, or convert the second analog signal into a third electrical signal according to the physical layer protocol.
Optionally, the wireless bridge further includes a wireless radio frequency signal amplifier, the wireless radio frequency signal amplifier is connected to the wireless transceiver module and the antenna, and the wireless radio frequency signal amplifier is configured to amplify the radio frequency signal and transmit the radio frequency signal to the antenna.
Optionally, the number of the wireless radio frequency signal amplifiers is two, the number of the antennas is two, and each wireless radio frequency signal amplifier is connected to one of the antennas.
Optionally, the electrical signal transmission module is an RJ45 network port.
Optionally, the optical signal transmission module is an SFP optical module.
Optionally, the wireless transceiver module is a 5.8G wireless transceiver.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a wireless network bridge, comprising: the optical signal transmission module is used for transmitting a first optical signal; the first signal conversion module is connected with the optical signal transmission module and used for converting the first optical signal into a first electric signal; the electric signal transmission module is used for transmitting a second electric signal; the second signal conversion module is connected with the first signal conversion module and the electric signal transmission module and is used for converting the first electric signal and the second electric signal into a first analog signal; the wireless transceiving module is connected with the second signal conversion module and is used for converting the first analog signal into a radio frequency signal; the antenna is connected with the wireless transceiving module and used for receiving and transmitting the radio frequency signal; the antenna is also used for receiving an external radio frequency signal and transmitting the external radio frequency signal to the wireless transceiving module; the wireless transceiver module is also used for converting the external radio frequency signal into a second analog signal; the second signal conversion module is further configured to convert the second analog signal into a third electrical signal; the electric signal transmission module is also used for outputting the third electric signal; the first signal conversion module is further configured to convert the third electrical signal into a second optical signal; the optical signal transmission module is further configured to output the second optical signal. The invention can transmit optical signals and electric signals, can realize multiple signal communication and is suitable for various scenes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a first networking of a conventional wireless bridge provided by the present invention;
FIG. 2 is a schematic diagram of a conventional wireless bridge provided by the present invention;
FIG. 3 is a block diagram of a wireless bridge architecture according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a wireless bridge according to an embodiment of the present invention;
FIG. 5 is a port diagram of a wireless bridge according to an embodiment of the present invention;
FIG. 6 is a block diagram of a wireless bridge according to an embodiment of the present invention;
fig. 7 is a diagram of an internal device of a wireless bridge according to an embodiment of the present invention;
fig. 8 is a diagram of a power supply method for a wireless bridge according to an embodiment of the present invention;
FIG. 9 is a diagram of a wireless bridge signal transmission according to an embodiment of the present invention;
FIG. 10 is a diagram of a conventional wireless bridge provided by an embodiment of the present invention;
fig. 11 is a wireless bridge wiring diagram provided by an embodiment of the invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The wireless network bridge is mainly erected between the two networks to realize the interaction of signals. Taking a mobile communication network as an example, a Packet Transport Network (PTN) transmission and a base station are connected with wireless bridges through network cables or optical cables, and the two wireless bridges perform data interaction through radio waves, so that signal interaction between the PTN transmission and the base station is finally realized. Fig. 1 is a schematic diagram of a first networking of a conventional wireless bridge provided by the present invention; fig. 2 is a second networking diagram of the conventional wireless bridge provided by the present invention.
The existing base station equipment is in optical port transmission, and an additional photoelectric conversion module is needed when the base station equipment is in butt joint with a network bridge, so that fault points are increased, and the problems that the access mode is single and the base station equipment cannot be suitable for various different scenes exist. Fig. 2 is a schematic diagram of a conventional wireless bridge provided by the present invention.
The invention aims to provide a wireless bridge to realize multiple signal communication.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 3 is a block diagram of a wireless bridge structure provided in embodiment 1 of the present invention, and as shown in fig. 3, the wireless bridge includes:
and the optical signal transmission module is used for transmitting the first optical signal. Preferably, the optical signal transmission module is an SFP optical module.
And the first signal conversion module is connected with the optical signal transmission module and used for converting the first optical signal into a first electric signal.
And the electric signal transmission module is used for transmitting the second electric signal. Preferably, the electrical signal transmission module is an RJ45 network port, which is also used to connect external direct current to power the wireless bridge.
And the second signal conversion module is connected with the first signal conversion module and the electric signal transmission module and is used for converting the first electric signal and the second electric signal into a first analog signal.
And the wireless transceiving module is connected with the second signal conversion module and used for converting the first analog signal into a radio frequency signal. Preferably, the wireless transceiver module is a 5.8G wireless transceiver.
And the antenna is connected with the wireless transceiving module and used for receiving and transmitting the radio frequency signal.
The antenna is also used for receiving an external radio frequency signal and transmitting the external radio frequency signal to the wireless transceiving module; the wireless transceiver module is also used for converting the external radio frequency signal into a second analog signal; the second signal conversion module is further configured to convert the second analog signal into a third electrical signal; the electric signal transmission module is also used for outputting the third electric signal; the first signal conversion module is further configured to convert the third electrical signal into a second optical signal; the optical signal transmission module is further configured to output the second optical signal.
In this embodiment, the wireless bridge further includes a DC power supply module and a power supply module, where the DC power supply module is configured to connect to an external alternating current, and convert the alternating current into a direct current to supply power to the wireless bridge. The power module is used for directly supplying power to the wireless network bridge.
In this embodiment, the second signal conversion module includes an ethernet transceiver and a converter. The converter is respectively connected with the Ethernet transceiver, the first signal conversion module and the electric signal transmission module; the ethernet transceiver is configured to provide a physical layer protocol, and the converter is configured to convert the first electrical signal and the second electrical signal into a first analog signal according to the physical layer protocol, or convert the second analog signal into a third electrical signal according to the physical layer protocol.
In this embodiment, the wireless bridge further includes a wireless rf signal amplifier, the wireless rf signal amplifier is connected to the wireless transceiver module and the antenna, and the wireless rf signal amplifier is configured to amplify the rf signal and transmit the amplified rf signal to the antenna. Specifically, the number of the radio frequency signal amplifiers is two, the number of the antennas is two, and each of the radio frequency signal amplifiers is connected to one of the antennas.
Fig. 4 is a design diagram of a wireless bridge according to an embodiment of the present invention, and fig. 5 is a port diagram of the wireless bridge according to the embodiment of the present invention. As shown in fig. 4 and 5, the a-a port is a power port (DC power supply module) and can support DC power supply, AC220V alternating current, and DC power supply, DC 24V-48V. The B-B port is a LAN/electric port transmission port (namely an electric signal transmission module), can be used as a transmission port through network cable connecting equipment, and can also be used as a POE port to be connected with a POE port on a power adapter for supplying power. The C-C port is an SEP signal output module (i.e., an optical signal transmission module) into which an SFP optical module is inserted, and an LC optical cable is used to connect a bridge with a BBU (baseband processing unit) or a PTN as a transmission port. The panel antenna is an integrated dual-polarized directional antenna and is a wireless bridge radio frequency unit. The adjusting plate mounting port is connected with the holding pole adjusting plate to fix the bridge. The wireless bridge parameters are shown in table 1.
TABLE 1
| Operating frequency band | 4.9～6.1GHz |
| Channel selection | Automatically or manually |
| Transmission capacity | 1G |
| Antenna gain | 23dBi |
| Non line of sight transmission distance | 3-5/km |
| Visual transmission distance | 5Km/10Km/15Km |
| Structure of the product | Outdoor integrated antenna design |
| Interface | Net mouth + optical port |
| Transmission cable distance | The network cable is less than or equal to 100M, and the field operation optical cable is less than or equal to 200M |
| Installation requirements | Low requirement, no need of machine room |
| Power consumption | ≤25W |
| Power supply method | POE/DC |
| Distance of power supply | POE≤100M、DC≤200M |
Fig. 6 is a structure diagram of a wireless bridge according to an embodiment of the present invention, and as shown in fig. 6, the wireless bridge is composed of a main control board, a DC access board, and an antenna array. Wherein the main board integrates SFP/electric port transmission ports and LAN/electric port transmission ports. The power supply working mode has two kinds, firstly, inserts the DC power cord through the DC inserts the mouth and supplies power for the main control board, secondly inserts the POE net twine through the LAN net gape and supplies power for the main control board. The signal transmission mode has two types, one is that the SFP/electric port transmission port is used for connecting optical fibers, photoelectric signal conversion is realized through an optical module, and communication between the optical fibers and a main control board is realized. And secondly, the LAN is used for connecting a network cable, and the signal communication is directly carried out with the main control board through the network port.
Fig. 7 is a diagram of an internal device of a wireless bridge according to an embodiment of the present invention. In fig. 7, the POE/ETA module (as a LAN/power port transmission port, i.e. an electrical signal transmission module) is an RJ45 network port, which can transmit data signals and also can transmit direct current power to the wireless bridge. The PHY (i.e., ethernet transceiver) is used to provide the physical protocol. The SOC is a system integrated chip. The 5.8G transceiver module (i.e. wireless transceiver module) is used for outputting and converting the radio frequency signal. The ANT is an antenna. switch components (i.e., translators) are used to provide protocol translation for the physical and logical layers. The DC power supply module is used for inputting a DC power supply. The DC power supply module can supply power to the main control panel through a power line, and performs voltage monitoring and signal returning through a flat cable. The SFP signal transmission module (i.e. optical signal transmission module) is used to implement optical interface transmission of the wireless bridge. The SFP signal output module is provided with an optical module interface (i.e., an SFP optical module) for connecting the optical module to the optical fiber. The DDR2SDRAM module (i.e., the first signal conversion module) is used to implement photoelectric signal conversion.
Fig. 8 is a diagram of a power supply mode of a wireless network bridge according to an embodiment of the present invention, and as shown in fig. 8, the present invention may connect 48V dc to a POE/ETA module through a network cable, and then supply power to a main control board and an antenna through an internal connection cable. The invention can also provide 48V direct current by connecting a DC power line with the DC module, and then supply power to the main control board and the antenna through internal connection. In the figure, a POWER input POWER supply connected with the DC module is 48V, and can directly supply POWER for a mainboard, and the current is changed into 20V after passing through an internal resistor to supply POWER for an antenna. The working voltage of the main control board SFP module is 3.3V.
Fig. 9 is a signal transmission diagram of a wireless network bridge according to an embodiment of the present invention, as shown in fig. 9, the present invention may provide an electrical signal through a network cable connection POE/ETA module, implement physical layer signal conversion through a switch component and a PHY, that is, convert the electrical signal into an analog signal, implement signal conversion through a 5.8G transceiver module, that is, convert the analog signal into a radio frequency signal, and output the radio frequency signal through an ANT antenna after being amplified by a radio frequency signal amplifier FEM. The invention can also connect the SFP signal output module through optical fiber, realize photoelectric signal conversion through DDR2SDRAM module, namely convert optical signal into electrical signal, realize physical layer signal conversion through switch component and PHY, namely convert electrical signal into analog signal, and then output through 5.8G transceiver module, wireless radio frequency signal amplifier FEM and ANT antenna. The signal transmission in the invention is a bidirectional process, namely the ANT antenna can receive external signals and convert the external signals into electric signals or optical signals.
Fig. 10 is a wiring diagram of a conventional wireless bridge according to an embodiment of the present invention, as shown in fig. 10, the conventional wireless bridge has only one POE port, and is connected to an ac outlet through an adapter. Meanwhile, the LAN port of the POE adapter is connected to the PTN, and signal transmission is achieved. The power supply and the transmission are both carried out by adopting a network cable, and the access mode is single. Fig. 11 is a wiring diagram of a wireless bridge according to an embodiment of the present invention, and as shown in fig. 11, there are two power supply methods and two transmission methods in the present invention. The DC cable can be directly arranged to the direct current switch power supply or the AC-dedicated direct current adapter through the power supply end (namely, the DC power supply module), and the network cable can be arranged to the LAN/power port transmission port of the network bridge through the POE power adapter. During transmission, a field operation optical cable can be arranged to the BBU or the PTN through the SFP signal output module, and a field operation network cable can be arranged to the BBU or the PTN through the LAN/electric port transmission port.
When the wireless network bridge is installed, a DC power line and a field operation optical cable can be arranged from a wireless machine room switching power supply and connected to the wireless network bridge. Namely, a DC cable is directly arranged at a power port to a direct current switch power supply, and a field operation optical cable is arranged at an SFP signal output module of the wireless network bridge to a BBU or a PTN. During installation, the AC hanging box can be arranged with a power line to the wireless network bridge for network bridge power supply, and the network line is arranged between the wireless network bridge and the camera for transmission. Namely, a DC cable is directly arranged at a power port to an AC special direct adapter, and a field operation optical cable is arranged at an SFP signal output module of the wireless network bridge to a BBU or a PTN. Further, during installation, a POE network cable can be arranged on the alternating current socket to the wireless network bridge to supply power to the network bridge, and optical fibers are arranged on the BBU to the wireless network bridge to transmit. Namely, the POE power adapter arranges a network cable to a LAN/power port transmission port of the network bridge, and the SFP signal output module of the wireless network bridge arranges a field operation optical cable to the BBU or the PTN.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
(1) the invention supports two power supply modes, namely DC direct current input, AC alternating current to DC adapter input, and AC to POE power supply input through the POE/ETA module. Or the DC power supply input is realized through the DC power supply module. The invention also supports two transmission modes, namely the transmission through the RJ45 electric port. And the SFP optical fiber transmission is realized through the SFP transmission module.
(2) The invention uses optical fiber for transmission, and has longer service life and better performance of the cable. And power cord and transmission line access mode variety have newly increased adjustable angle's mounting, and the use scene is wider.
(3) The invention connects two far-distance networks in a wireless bridging mode, is used for replacing optical fibers and network cables, is used for long-distance network data transmission, does not need complicated wiring, reduces the construction difficulty, saves manpower and material resources and reduces the industrial cost.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist in understanding the core concepts of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A wireless bridge, comprising:
the optical signal transmission module is used for transmitting a first optical signal;
the first signal conversion module is connected with the optical signal transmission module and used for converting the first optical signal into a first electric signal;
the electric signal transmission module is used for transmitting a second electric signal;
the second signal conversion module is connected with the first signal conversion module and the electric signal transmission module and is used for converting the first electric signal and the second electric signal into a first analog signal;
the wireless transceiving module is connected with the second signal conversion module and is used for converting the first analog signal into a radio frequency signal;
the antenna is connected with the wireless transceiving module and used for receiving and transmitting the radio frequency signal;
the antenna is also used for receiving an external radio frequency signal and transmitting the external radio frequency signal to the wireless transceiving module; the wireless transceiver module is also used for converting the external radio frequency signal into a second analog signal; the second signal conversion module is further configured to convert the second analog signal into a third electrical signal; the electric signal transmission module is also used for outputting the third electric signal; the first signal conversion module is further configured to convert the third electrical signal into a second optical signal; the optical signal transmission module is further configured to output the second optical signal.
2. The wireless bridge of claim 1, further comprising a DC power module for coupling external ac power to convert the ac power to DC power to power the wireless bridge.
3. The wireless bridge of claim 1, further comprising a power module for directly powering the wireless bridge.
4. The wireless bridge of claim 1, wherein the electrical signal transmission module is further configured to connect an external direct current to power the wireless bridge.
5. The wireless bridge of claim 1, wherein the second signal conversion module comprises an ethernet transceiver and a converter; the converter is respectively connected with the Ethernet transceiver, the first signal conversion module and the electric signal transmission module; the ethernet transceiver is configured to provide a physical layer protocol, and the converter is configured to convert the first electrical signal and the second electrical signal into a first analog signal according to the physical layer protocol, or convert the second analog signal into a third electrical signal according to the physical layer protocol.
6. The wireless bridge of claim 1, further comprising a wireless rf signal amplifier coupled to the wireless transceiver module and the antenna, the wireless rf signal amplifier configured to amplify and transmit the rf signal to the antenna.
7. The wireless bridge of claim 6, wherein said plurality of RF signal amplifiers is two and said plurality of antennas is two, each of said plurality of RF signal amplifiers being connected to one of said plurality of antennas.
8. The wireless bridge of claim 1, wherein the electrical signal transmission module is an RJ45 port.
9. The wireless bridge of claim 1, wherein the optical signal transmission module is an SFP optical module.
10. The wireless bridge of claim 1, wherein the wireless transceiver module is a 5.8G wireless transceiver.
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| CN202011217238.1A CN112383973A (en) | 2020-11-04 | 2020-11-04 | Wireless network bridge |
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| CN202011217238.1A CN112383973A (en) | 2020-11-04 | 2020-11-04 | Wireless network bridge |
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| CN115118549A (en) * | 2022-07-04 | 2022-09-27 | 中国科学院沈阳自动化研究所 | Bridge structure of large-depth underwater robot |
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