CN211089647U - Novel point-to-point visible light communication transceiver of wireless network bridge - Google Patents
Novel point-to-point visible light communication transceiver of wireless network bridge Download PDFInfo
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- CN211089647U CN211089647U CN201922104460.XU CN201922104460U CN211089647U CN 211089647 U CN211089647 U CN 211089647U CN 201922104460 U CN201922104460 U CN 201922104460U CN 211089647 U CN211089647 U CN 211089647U
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Abstract
A novel point-to-point visible light communication transceiver of a wireless network bridge comprises an optical lens, a narrow band filter, L ED lamp beads, a PD receiver, a front transimpedance amplifier, a main amplifier, a modulation and demodulation processing circuit, a bias circuit, a network interface module and an adapter, wherein the optical lens is arranged on the upper portion of the PD receiver, the narrow band filter is arranged on the upper portion of L ED lamp beads, the PD receiver is connected with the main amplifier and the modulation and demodulation processing circuit sequentially through the front transimpedance amplifier, the modulation and demodulation processing circuit is connected with the L ED lamp beads sequentially through the bias circuit, the modulation and demodulation processing circuit is further connected with the network interface module, and the adapter is respectively connected with the front transimpedance amplifier, the main amplifier and the bias circuit through a power supply module.
Description
Technical Field
The utility model belongs to the technical field of visible light communication, concretely relates to novel point-to-point visible light communication transceiver of wireless network bridge.
Background
The visible light communication technology is to transmit information by means of high speed light and shade flashing signal from fluorescent lamp, LED, etc. the high speed Internet wire device is connected to lighting device and may be used after inserting power plug. The system made by the technology can cover the range of indoor lighting, and the computer does not need to be connected by wires, so the system has wide development prospect. In the prior art, two areas which are inconvenient to connect through a network cable or areas with low and unstable WIFI connection bandwidth cannot be effectively communicated. Meanwhile, the existing communication transceiver cannot be applied to the visible light communication technology, and further cannot effectively meet various application requirements in a visible light communication system.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a novel point-to-point visible light communication transceiver of wireless network bridge, this equipment can realize point-to-point reliable communication under the condition that does not rely on cable, optical cable and radio wave, and it is applicable to visible light communication system, can effectively satisfy various application demands among the visible light communication system.
The utility model provides a novel point-to-point visible light communication transceiver of wireless network bridge, including shell body, L ED drive plate, visible light signal processing board, lens support, narrowband optical filter, reflector and adapter, the shell body comprises shell upper cover and shell lower cover, L ED drive plate and visible light signal processing board loop through the double-screw bolt and install upper portion and lower part in shell upper cover inner space;
the upper part of the upper cover of the shell is provided with a signal input port and a signal output port at intervals from left to right, the inner diameter of the signal input port is larger than that of the signal output port, the side surface of the upper cover of the shell is provided with a power supply port and a network port, a L ED driving plate is provided with a through hole A and a through hole B corresponding to the signal input port and the signal output port, a L ED driving plate is provided with a L ED lamp panel at the lower part of the through hole B, a L ED lamp panel is provided with L ED lamp beads at the position corresponding to the through hole B, a visible light signal processing plate is provided with a PD receiver at the position corresponding to the through hole A, the visible light signal processing plate is also provided with a preposed transimpedance amplifier, a main amplifier, a bias circuit, a;
the lens support is composed of a cylindrical lens lower support and a cylindrical lens upper support, the lower end of the lens lower support is fixedly connected to the outer end of the signal input port, internal threads are arranged on the inner side of the upper portion of the lens lower support, external threads are arranged on the outer side of the lower portion of the lens upper support, and the lower portion of the lens upper support is installed on the inner side of the upper portion of the lens lower support in a threaded fit mode; the upper end of the inner part of the lens upper bracket is provided with an optical lens; the narrow-band optical filter is arranged in the signal output port;
the reflector is arranged inside the upper cover of the shell, the large-diameter end of the reflector is fixedly connected with the lower end of the signal input port, and the small-diameter end of the reflector is sleeved outside the L ED lamp bead and is abutted against the L ED lamp panel;
the adapter is arranged inside the upper cover of the shell and is arranged close to the power supply port;
the PD receiver is connected with the modulation and demodulation processing circuit through the preposed transimpedance amplifier and the main amplifier in sequence, the modulation and demodulation processing circuit is connected with the L ED lamp bead through the biasing circuit, the modulation and demodulation processing circuit is further connected with the network interface module, and the adapter is connected with the PD receiver, the preposed transimpedance amplifier, the main amplifier and the biasing circuit through the power supply module.
Preferably, the network interface module is an RJ45 interface.
Preferably, the lithium battery pack further comprises a lithium battery module installed inside the outer case; the lithium battery module is connected with the power supply module.
Further, in order to conveniently dissipate heat, the upper cover of the shell and the lower cover of the shell are both provided with heat dissipation holes.
The utility model discloses the visible light communication technique that uses the forward position is connected two inconveniences through the net twine connection, the low unstable region of WIFI connection bandwidth through the visible light. The two devices transmit data information through light, the limitation of optical cable and cable communication is changed, communication connection can be carried out only in a light place without being bound by a network cable interface point, and convenience is brought to cableless communication. In addition, the conventional wireless communication uses radio waves for communication, and the communication between outdoor mobile state devices is easily interfered by the surrounding environment, so that the communication delay is caused, and the communication quality is poor. Because light propagates in the form of light beams along a straight line and is emitted out according to a certain half angle by a light source point, energy is concentrated, and therefore the problems of interference of the surrounding environment, communication delay and poor communication quality can be effectively avoided through visible light communication. The utility model discloses use the light beam to carry out point-to-point type communication, with data coding to the light beam, through shining of light with data transmission to another equipment, another equipment passes through the light beam and sends data message to this equipment, accomplishes once information interaction, because the light beam angle can be adjusted through secondary optics, therefore can make two equipment be in the continuous connection state under the mobile state, can provide a novel communication link equipment that does not rely on cable, optical cable, radio wave under the mobile state. The utility model is suitable for a data transmission etc. between data transmission, building and the building between data transmission between two places of closely, the interconnection between secret communication, the PC between the train team between the train carriage. The utility model discloses still be applicable to electromagnetic blind area and electromagnetism sensitive area such as hospital, cave depot, command post, nuclear power station, realize in forbidden radio wave and inconvenient environment high speed communication of pulling the cable.
Drawings
Fig. 1 is a schematic block circuit diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
fig. 3 is a schematic diagram of the application of the present invention.
In the figure, the LED lamp panel comprises a lens support 1, a lens support 2, a narrow-band filter 3, a light reflecting bowl 4, a shell upper cover 5, a net port 6, a power supply port 7, an L ED driving board 8, a L ED lamp bead 9, a modulation and demodulation processing circuit 10, a shell lower cover 11, a visible light signal processing board 12, an optical lens 13, a lens upper support 14, a lens lower support 15, a signal input port 16, a PD receiver 17, a signal output port 18, a through hole A, a through hole B, a through hole 20 and a L ED lamp panel.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, a novel point-to-point visible light communication transceiver of a wireless network bridge includes an optical lens 12, a narrowband optical filter 2, an L ED lamp bead 8, a PD receiver 16, a pre-transimpedance amplifier, a main amplifier, a modulation and demodulation processing circuit 9, a bias circuit, a network interface module, and an adapter;
the optical lens 12 is arranged on the upper portion of the PD receiver 16, the narrow band filter 4 is arranged on the upper portion of the L ED lamp bead 8, because a red explosion phenomenon can occur after a near infrared lamp bead is lightened, a visible light wave band can be filtered through the arrangement of the narrow band filter 2, a signal emission point cannot be exposed, the PD receiver 16 is connected with the main amplifier and the modulation and demodulation processing circuit 9 sequentially, the modulation and demodulation processing circuit 9 is connected with the L ED lamp bead 8 sequentially through the bias circuit, the modulation and demodulation processing circuit 9 is further connected with the network interface module, the adapter is respectively connected with the PD receiver 16, the front transimpedance amplifier, the main amplifier and the bias circuit through the power supply module, as a preferable mode, the adapter supplies power by adopting wide voltage AC100V-240V and converts the power into DC12 34 output power for providing various power supply modes, meanwhile, the adapter can also supply power through the USB charging interface, at the moment, a built-in power management module matched with the USB charging interface is arranged to perform voltage conversion, as a preferable mode, the network interface module adopts RJ 56 for a network interface module, the network interface module is used for receiving infrared light signal, transmitting and receiving infrared light, transmitting and receiving infrared data through an infrared communication channel, and receiving infrared communication channel, and an infrared communication protocol is preferably applied to an infrared communication system, and an infrared communication system, the infrared communication system can be used for receiving infrared communication system, the infrared communication system can be used for receiving the infrared communication system, the infrared system can be used for receiving the infrared system, the.
As a preference, a radiator can be arranged to radiate heat for the lamp bead,
preferably, the lithium battery module further comprises a lithium battery module; the lithium battery module is connected with the power supply module.
In order to realize modularization and integration assembly, the LED light source comprises an outer shell, an L ED driving board 7, a visible light signal processing board 11, a lens support 1 and a light reflecting bowl 3, wherein the outer shell consists of an upper shell cover 4 and a lower shell cover 10, the L ED driving board 7 and the visible light signal processing board 11 are sequentially arranged on the upper part and the lower part of the inner space of the upper shell cover 4 through studs, and the lower shell cover 10 is buckled and connected to the lower end of the upper shell cover 4 and is fixedly connected with the upper shell cover 4 through screws;
the upper part of the upper cover 4 of the shell is provided with a signal input port 15 and a signal output port 17 at intervals from left to right, the side surface of the upper cover 4 of the shell is provided with a power port 6 and a network port 5, the L ED drive board 7 is provided with a through hole A18 and a through hole B19 corresponding to the signal input port 15 and the signal output port 17, the L ED drive board 7 is provided with a L ED lamp panel 20 at the lower part of the through hole B19, the L ED drive board 7 can drive L ED lamp beads 8 to emit light by using DC3.3V or DC2.8V, namely, network information can be sent to sink connecting equipment through light beams, and the L ED lamp beads 8 are arranged on the L ED lamp panel 20 corresponding to the;
the lens support 1 consists of a cylindrical lens lower support 14 and a cylindrical lens upper support 13, the lower end of the lens lower support 14 is fixedly connected to the outer end of a signal input port 15, an internal thread is arranged on the inner side of the upper part of the lens lower support 14, an external thread is arranged on the outer side of the lower part of the lens upper support 13, and the lower part of the lens upper support 13 is installed on the inner side of the upper part of the lens lower support 14 in a thread fit manner; the optical lens 12 is fixedly arranged inside the lens upper bracket 13; the narrow-band filter 2 is arranged in the signal output port 17;
the reflector 3 is arranged inside the upper cover 4 of the shell, the large-diameter end of the reflector is fixedly connected with the lower end of the signal input port 15, and the small-diameter end of the reflector is sleeved outside the L ED lamp bead 8 and is abutted against the L ED lamp panel 20;
the PD receiver 16, the pre-transimpedance amplifier, the main amplifier, the bias circuit, the modulation and demodulation processing circuit 9 and the network interface module are all arranged on the visible light signal processing board 11, and the network interface module is arranged close to the network port 5; the adapter is arranged inside the upper cover of the shell and is arranged close to the power supply port 6; the PD receiver 16 is disposed corresponding to the through hole a 18.
In order to facilitate heat dissipation, heat dissipation holes are formed in the housing upper cover 4 and the housing lower cover 10.
The equipment is used in pairs when in work, as shown in fig. 3, one equipment is connected with a signal source, one equipment is connected with a lodging and uses a TCP/IP communication protocol, the signal source can be a PC, an Ethernet, an industrial router or other network information distribution equipment, the signal sink can acquire information and exchange information through a channel between the two equipment, the channel is a visible light beam or a near infrared beam, after the signal source and the signal sink are connected, the equipment is opened, the two equipment can be connected after being compared without the limitation of a network wire, the information exchange can be carried out as long as the distance between the two equipment is in a straight line visible range, the modulation and demodulation processing circuit 9 and the signal source or the signal sink carry out data exchange communication through a network interface module, the narrow-band optical filter 2 is arranged to filter visible light wave bands and then is received by the PD receiver 16, the PD receiver 16 converts the received light signals into weak current signals, the current signals are amplified for the first time through a prepositive transimpedance amplifier, the current signals are mainly used for converting the weak current signals into voltage signals, amplify the signals through a main transimpedance amplifier, and convert the light signals into voltage signals which can be transmitted to a light emitting signal of a host, the signal processing circuit 358, and can be transmitted to the signal through a signal transmitting circuit, and a signal of the signal receiving terminal, and a signal receiving circuit, and a signal receiving module, and a signal processing circuit, and a signal receiving module, and a signal transmitting module, and a signal.
The utility model discloses can insert equipment with network analog signal, convert L ED lamp pearl drive signal into after through the modem to network signal, and then load drive signal to visible light communication equipment's transmitting terminal, shine the receiving terminal of another equipment with the form of light beam with network signal through L ED lamp pearl, another equipment receives light signal and carries out modem, the code sends for network signal through network interface module, accomplish information transmission once, this point-to-point visible light communication transceiver is full duplex communication equipment, carry out the network interaction.
Claims (4)
1. A novel point-to-point visible light communication transceiver of a wireless network bridge comprises a shell body and is characterized by further comprising an L ED drive board (7), a visible light signal processing board (11), a lens support (1), a narrow band filter (2), a light reflecting bowl (3) and an adapter, wherein the shell body consists of a shell upper cover (4) and a shell lower cover (10), the L ED drive board (7) and the visible light signal processing board (11) are sequentially installed on the upper portion and the lower portion of the inner space of the shell upper cover (4) through studs, and the shell lower cover (10) is connected to the lower end of the shell upper cover (4) in a buckling mode and fixedly connected with the shell upper cover (4) through screws;
the LED light source comprises a shell upper cover (4), a signal input port (15) and a signal output port (17) are arranged on the upper portion of the shell upper cover (4) at left and right intervals, the inner diameter of the signal input port (15) is larger than the inner diameter of the signal output port (17), a power supply port (6) and a network port (5) are arranged on the side face of the shell upper cover (4), a L ED driving board (7) is provided with a through hole A (18) and a through hole B (19) corresponding to the signal input port (15) and the signal output port (17), a L ED driving board (7) is provided with a L ED lamp panel (20) at the lower part of the through hole B (19), the L ED lamp panel (20) is provided with a L ED lamp bead (8) at the position corresponding to the through hole B (19), a PD receiver (16) is arranged at the position corresponding to the through hole A (18) on a visible light signal processing board (11), a prepositive trans-impedance amplifier, a main amplifier, a bias circuit, a modulation and demodulation processing circuit (;
the lens support (1) consists of a cylindrical lens lower support (14) and a cylindrical lens upper support (13), the lower end of the lens lower support (14) is fixedly connected to the outer end of a signal input port (15), an internal thread is arranged on the inner side of the upper portion of the lens lower support (14), an external thread is arranged on the outer side of the lower portion of the lens upper support (13), and the lower portion of the lens upper support (13) is installed on the inner side of the upper portion of the lens lower support (14) in a threaded fit mode; an optical lens (12) is arranged at the upper end of the inner part of the lens upper bracket (13); the narrow-band filter (2) is arranged in a signal output port (17);
the light reflecting bowl (3) is arranged inside the upper cover (4) of the shell, the large-diameter end of the light reflecting bowl is fixedly connected with the lower end of the signal input port (15), and the small-diameter end of the light reflecting bowl is sleeved outside the L ED lamp bead (8) and is abutted against the L ED lamp panel (20);
the adapter is arranged inside the upper cover of the shell and is arranged close to the power supply port (6);
the PD receiver (16) is connected with the modulation and demodulation processing circuit (9) through the preposed transimpedance amplifier and the main amplifier in sequence, the modulation and demodulation processing circuit (9) is connected with the L ED lamp beads (8) through the bias circuit, the modulation and demodulation processing circuit (9) is further connected with the network interface module, and the adapter is connected with the PD receiver (16), the preposed transimpedance amplifier, the main amplifier and the bias circuit through the power supply module.
2. The novel point-to-point visible light communication transceiver device of wireless network bridge as claimed in claim 1, wherein said network interface module is an RJ45 interface.
3. The novel point-to-point visible light communication transceiver of the wireless network bridge as claimed in claim 2, further comprising a lithium battery module installed inside the outer case; the lithium battery module is connected with the power supply module.
4. The novel point-to-point visible light communication transceiver of wireless network bridge according to claim 3, wherein the housing upper cover (4) and the housing lower cover (10) are both provided with heat dissipation holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104460.XU CN211089647U (en) | 2019-11-29 | 2019-11-29 | Novel point-to-point visible light communication transceiver of wireless network bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104460.XU CN211089647U (en) | 2019-11-29 | 2019-11-29 | Novel point-to-point visible light communication transceiver of wireless network bridge |
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| Publication Number | Publication Date |
|---|---|
| CN211089647U true CN211089647U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922104460.XU Active CN211089647U (en) | 2019-11-29 | 2019-11-29 | Novel point-to-point visible light communication transceiver of wireless network bridge |
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| Country | Link |
|---|---|
| CN (1) | CN211089647U (en) |
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- 2019-11-29 CN CN201922104460.XU patent/CN211089647U/en active Active
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