CN211089648U - Visible light communication video telephone - Google Patents
Visible light communication video telephone Download PDFInfo
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- CN211089648U CN211089648U CN201922104479.4U CN201922104479U CN211089648U CN 211089648 U CN211089648 U CN 211089648U CN 201922104479 U CN201922104479 U CN 201922104479U CN 211089648 U CN211089648 U CN 211089648U
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- visible light
- videophone
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Abstract
A visible light communication video telephone is prepared as setting film-coated receiving lens on top of PD receiver and setting narrow-band filter on top of emission L ED module, connecting PD receiver to digital signal modulation-demodulation processing circuit through front-set transimpedance amplifier and main amplifier, connecting digital signal modulation-demodulation processing circuit to bias circuit and emission L ED module through filter circuit, connecting digital signal modulation-demodulation processing circuit to video telephone module through hard-core network interface circuit, connecting adapter to system power supply module, connecting system power supply module to polymer lithium battery, connecting adapter to front-set transimpedance amplifier, main amplifier, hard-core network interface circuit, digital signal modulation-demodulation processing circuit, filter circuit and bias circuit through system power supply module.
Description
Technical Field
The utility model belongs to the technical field of visible light communication, concretely relates to visible light communication videophone.
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. The existing video telephone has simple functions, 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 visible light communication videophone, this videophone function is various, is applicable to visible light communication system, can effectively satisfy various application demands among the visible light communication system.
The utility model provides a visible light communication video telephone, which comprises a telephone shell, a telephone handle positioned outside the telephone shell, a video telephone module, a narrow-band optical filter, a coated receiving lens, an emission L ED module, a PD receiver, a visible light signal processing board, a system power supply module and an adapter, wherein the telephone shell is formed by buckling and connecting a front video telephone shell and a rear video telephone shell through bolts;
the video telephone module is arranged on a front shell of the video telephone, and the telephone handle is connected with the video telephone through a cable penetrating into a telephone shell;
the upper part of the video telephone rear shell is provided with a signal output port and a signal input port at intervals left and right, a transparent antenna fixing plate is arranged below the signal output port and the signal input port in the video telephone rear shell in a fitting manner, and the narrowband optical filter and the coated receiving lens are respectively arranged at the lower part of the transparent antenna fixing plate in a fitting manner corresponding to the signal output port and the signal input port;
the system power supply module is arranged on the right side below the visible light signal processing board, and one side of the system power supply module, which is close to the video telephone rear shell, is respectively connected with a charging indicator lamp, a voltage under-voltage indicator lamp and a power switch;
a charging indicator lamp mounting hole, a voltage under-voltage indicator lamp mounting hole, an adapter wire-passing hole and a power switch mounting hole are respectively formed in a right end plate of a video telephone rear shell, the charging indicator lamp mounting hole, the voltage under-voltage indicator lamp mounting hole and the power switch mounting hole are respectively arranged corresponding to the charging indicator lamp, the voltage under-voltage indicator lamp and the power switch, a cable connected with the adapter penetrates through the adapter wire-passing hole, and the adapter is fixedly connected inside the video telephone rear shell;
the visible light signal processing board is provided with a preposed transimpedance amplifier, a main amplifier, a bias circuit, a digital signal modulation and demodulation processing circuit and a hard core network interface circuit;
the PD receiver is connected with the digital signal modulation and demodulation processing circuit through the pre-transimpedance amplifier and the main amplifier in sequence, the digital signal modulation and demodulation processing circuit is connected with the emission L ED module through the bias circuit, the digital signal modulation and demodulation processing circuit is further connected with the video telephone module through the hard core network interface circuit, and the adapter is connected with the pre-transimpedance amplifier, the main amplifier, the hard core network interface circuit, the digital signal modulation and demodulation processing circuit, the bias circuit and the PD receiver through the system power supply module.
Further, in order to realize reliable communication in a mobile state, the mobile communication terminal also comprises a lithium battery module, wherein the lithium battery module is arranged below the visible light signal processing board; and the lithium battery module is connected with the system power supply module.
Preferably, the visible light signal processing board is connected with the video telephone rear shell through a fixing screw A; the system power supply module is connected with the video telephone rear shell through a fixing screw B.
Preferably, the lithium battery module is a polymer lithium battery.
The invention changes the traditional networking mode of the video telephone through the network cable and WIFI into the networking mode through wireless optical communication, so that the video telephone can carry out network communication without depending on electromagnetic waves in a mobile state, the working limitation of the video telephone is changed, the video telephone can carry out network connection in a bright place without being bound by the interface point of the network cable, and the use is convenient. Meanwhile, the original functions of the video telephone are reserved, and voice and video communication, multi-person meeting and the like can be carried out. The lithium battery module is added in the video telephone, so that reliable power supply in a mobile state can be guaranteed. The invention can be comprehensively applied to the application field of the traditional video telephone, such as telephone conferences, enterprise internal scheduling command production, remote training and the like, is different from other radio wave mobile video telephones, can carry out mobile audio and video communication in electromagnetic silence sensitive areas and electromagnetic blind areas, has strong confidentiality, is particularly suitable for electromagnetic blind areas and electromagnetic sensitive areas of hospitals, caverns, command posts, nuclear power stations and the like, and can realize mobile wireless communication in the environment where radio waves are forbidden.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic block circuit diagram of the present invention.
In the figure, the device comprises a telephone handle 1, a telephone handle 2, a video telephone front shell 3, a transparent antenna fixing plate 4, a narrow-band optical filter 5, a coated receiving lens 8, a PD receiver 9, fixing screws A and 10, an emission L ED module 11, a signal output port 12, a signal input port 13, a video telephone rear shell 14, a visible light signal processing board 15, a charging indicator lamp mounting hole 16, a voltage under-voltage indicator lamp mounting hole 17, an adapter wire passing hole 18, a power switch mounting hole 19, a system power supply module 20, fixing screws B and 21 and a lithium battery module.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, a visible light communication videophone includes a coated receiving lens 5, a narrowband filter 4, an emission L ED module 10, a PD receiver 8, a pre-transimpedance amplifier, a main amplifier, a digital signal modulation and demodulation processing circuit, a filter circuit, a bias circuit, a hardmac network interface circuit, a videophone module, an adapter, and a system power supply module 19;
preferably, the adapter uses wide voltage supply AC100V-240V to satisfy the use of videophones in different regions and different locations.
The film-coated receiving lens 5 is arranged on the upper portion of the PD receiver 8, the film-coated receiving lens 5 not only has the function of an optical lens, but also has the function of a narrow-band filter, the narrow-band filter 4 is arranged on the upper portion of the emission L ED module 10, the PD receiver 8 is connected with the digital signal modulation and demodulation processing circuit sequentially through the pre-transimpedance amplifier and the main amplifier, the digital signal modulation and demodulation processing circuit is connected with the emission L ED module 10 through the bias circuit, preferably, the digital signal modulation and demodulation processing circuit is connected with the bias circuit through the filter circuit, the digital signal modulation and demodulation processing circuit is further connected with the video telephone module through the hard core network interface circuit, and the adapter is respectively connected with the pre-transimpedance amplifier, the main amplifier, the hard core network interface circuit, the digital signal modulation and demodulation processing circuit, the filter circuit, the bias circuit and the PD receiver 8 through the system power supply module 19.
As a preferred, emission L ED module 10 adopts the infrared lamp pearl of wavelength 810nm, this lamp pearl calorific capacity is little, communication bandwidth height satisfies system operation requirement, near-infrared lamp pearl can appear red and explode the phenomenon after lighting, the visible light wave band is 360nm-780nm wave band, filter the visible light wave band through the narrowband optical filter, can not exert an influence to people during the use, use DC2.8V load video signal's biasing module drive L ED lamp pearl, reduce power, reduce calorific capacity, video information sends free space, carry out information transmission.
The PD receiver 8 receives a downlink optical signal sent by the visible light communication lamp, converts the optical signal into a weak current signal, and the current signal enters a first-stage amplification circuit, which is a pre-transimpedance amplifier, and the transimpedance amplifier mainly functions to convert the weak current signal into a voltage signal and amplify the signal with a certain intensity and low noise; the micro voltage signal is further amplified by a second-stage operational amplifier, a second-stage amplifying circuit is a main amplifier, and the millivolt-level voltage signal is amplified to a volt level to meet the requirement of optical signal transmission; the amplified optical signal is input to the visible light communication processing module 14, the signal is filtered and amplified again and then transmitted to the signal processing unit for decoding and modulation, the TCP/IP protocol is sent to the video telephone to complete one-time information reception, and the communication mode is changed by using the visible light communication technology by means of the original video telephone function, so that a wider application approach is provided for the video telephone.
Further, in order to ensure reliable power supply in a mobile state, the mobile terminal further comprises a lithium battery module 21; the lithium battery module 21 is connected to the system power supply module 19. Preferably, the power supply voltage of the lithium battery module 21 is 12V. The power supply of the lithium battery module 21 belongs to emergency power supply, the adapter is used for supplying power to the video telephone when being connected, meanwhile, the lithium battery module 21 is charged, the adapter is connected to the system power supply module 19, and the charging and discharging of the lithium battery module 21 are controlled through the power supply module 19.
The telephone comprises a telephone shell and a telephone handle 1 positioned outside the telephone shell, wherein the telephone shell is formed by buckling and connecting a video telephone front shell 2 and a video telephone rear shell 13;
the video telephone module is arranged on a video telephone front shell 2, and the telephone handle 1 is connected with a video telephone through a cable penetrating into a telephone shell;
the upper part of the video phone rear shell 13 is provided with a signal output port 11 and a signal input port 12 at intervals left and right, a transparent antenna fixing plate 3 is arranged inside the video phone rear shell 13 below the signal output port 11 and the signal input port 12 in a bonding mode, the narrow-band optical filter 4 and the coated receiving lens 5 are respectively arranged at the lower part of the transparent antenna fixing plate 3 in a bonding mode corresponding to the signal output port 11 and the signal input port 12, and the transmitting L ED module 10 and the PD receiver 8 are respectively arranged at the lower parts of the narrow-band optical filter 4 and the coated receiving lens 5 in a bonding mode corresponding to each other;
the front transimpedance amplifier, the main amplifier, the bias circuit, the filter circuit, the digital signal modulation and demodulation processing circuit and the hardmac network interface circuit are all arranged on a visible light signal processing board 14, the visible light signal processing board 14 is arranged below an emitting L ED module 10 and a PD receiver 8, the lithium battery module 21 is arranged below the visible light signal processing board 14, the system power supply module 19 is arranged on the right side of the lithium battery module 21, one side, close to the video telephone rear shell 13, of the system power supply module 19 is respectively connected with a charging indicator lamp, a voltage under-voltage indicator lamp and a power switch, a charging indicator lamp mounting hole 15, a voltage under-voltage indicator lamp mounting hole 16, an adapter wire passing hole 17 and a power switch mounting hole 18 are respectively formed in the right side end plate of the video telephone rear shell 13, the charging indicator lamp mounting hole 15, the voltage under-voltage indicator lamp mounting hole 16 and the power switch mounting hole 18 are respectively arranged corresponding to the charging indicator lamp, the voltage under-voltage indicator lamp and the power switch, and charging indicator lamp cables connected with the under-voltage adapter wire passing hole 17 penetrate through the adapter, and the charging indicator lamp 21 and the lithium battery module can respectively display the state.
The transparent antenna fixing plate 3 is made of an adhesive-backed acrylic plate.
The visible light signal processing board 14 is connected with the video telephone rear shell 13 through a fixing screw A9; the system power supply module 19 is connected to the videophone back case 13 by a set screw B20.
The lithium battery module 21 is a polymer lithium battery.
When the system works, the visible light communication video telephone is placed in a room provided with the visible light communication lamp, is connected with the adapter, is powered by the AC220V, is in a standby state, can be moved to a place needing to be used when a multi-person video conference or other purposes are temporarily needed, is not limited by a power line and a network cable, and can be used for audio and video communication in a moving state in a light place.
Claims (4)
1. A visible light communication videophone comprises a phone shell and a phone handle (1) positioned outside the phone shell, and is characterized by further comprising a videophone module, a narrow band filter (4), a coated film receiving lens (5), an emission L ED module (10), a PD receiver (8), a visible light signal processing board (14), a system power supply module (19) and an adapter, wherein the phone shell is formed by buckling a videophone front shell (2) and a videophone rear shell (13) and connecting the videophone front shell and the videophone rear shell through bolts;
the video telephone module is arranged on a video telephone front shell (2), and the telephone handle (1) is connected with a video telephone through a cable penetrating into a telephone shell;
the upper part of the video telephone rear shell (13) is provided with a signal output port (11) and a signal input port (12) at intervals left and right, a transparent antenna fixing plate (3) is arranged below the signal output port (11) and the signal input port (12) in the video telephone rear shell (13) in a bonding mode, the narrow-band optical filter (4) and the coated receiving lens (5) are respectively arranged on the lower part of the transparent antenna fixing plate (3) in a bonding mode corresponding to the signal output port (11) and the signal input port (12), and the emission L ED module (10) and the PD receiver (8) are respectively arranged on the lower parts of the narrow-band optical filter (4) and the coated receiving lens (5) in a bonding mode corresponding to each other;
the system power supply module (19) is arranged on the right side below the visible light signal processing board (14), and one side of the system power supply module (19) close to the video telephone rear shell (13) is respectively connected with a charging indicator lamp, a voltage under-voltage indicator lamp and a power switch;
a charging indicator lamp mounting hole (15), a voltage under-voltage indicator lamp mounting hole (16), an adapter wire-passing hole (17) and a power switch mounting hole (18) are respectively formed in a right end plate of a video telephone rear shell (13), the charging indicator lamp mounting hole (15), the voltage under-voltage indicator lamp mounting hole (16) and the power switch mounting hole (18) are respectively arranged corresponding to the charging indicator lamp, the voltage under-voltage indicator lamp and the power switch, a cable connected with the adapter penetrates through the adapter wire-passing hole (17), and the adapter is fixedly connected inside the video telephone rear shell (13);
the visible light signal processing board (14) is provided with a preposed transimpedance amplifier, a main amplifier, a bias circuit, a digital signal modulation and demodulation processing circuit and a hardmac network interface circuit;
the PD receiver (8) is connected with the digital signal modulation and demodulation processing circuit through the pre-transimpedance amplifier and the main amplifier in sequence, the digital signal modulation and demodulation processing circuit is connected with the emission L ED module (10) through the bias circuit, the digital signal modulation and demodulation processing circuit is further connected with the video telephone module through the hardmac network interface circuit, and the adapter is connected with the pre-transimpedance amplifier, the main amplifier, the hardmac network interface circuit, the digital signal modulation and demodulation processing circuit, the bias circuit and the PD receiver (8) through the system power supply module (19) respectively.
2. The videophone for visible light communication according to claim 1, further comprising a lithium battery module (21), wherein the lithium battery module (21) is disposed below the visible light signal processing board (14); the lithium battery module (21) is connected with the system power supply module (19).
3. A visible light communication videophone according to claim 1 or 2, characterized in that said visible light signal processing board (14) is connected to the videophone back shell (13) by means of a set screw a (9); the system power supply module (19) is connected with the video telephone rear shell (13) through a fixing screw B (20).
4. A videophone for visible light communication according to claim 2, characterized in that said lithium battery module (21) is a polymer lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104479.4U CN211089648U (en) | 2019-11-29 | 2019-11-29 | Visible light communication video telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104479.4U CN211089648U (en) | 2019-11-29 | 2019-11-29 | Visible light communication video telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211089648U true CN211089648U (en) | 2020-07-24 |
Family
ID=71631292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922104479.4U Active CN211089648U (en) | 2019-11-29 | 2019-11-29 | Visible light communication video telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211089648U (en) |
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2019
- 2019-11-29 CN CN201922104479.4U patent/CN211089648U/en active Active
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