CN209182493U - Visible light positioning device - Google Patents
Visible light positioning device Download PDFInfo
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- CN209182493U CN209182493U CN201821484937.0U CN201821484937U CN209182493U CN 209182493 U CN209182493 U CN 209182493U CN 201821484937 U CN201821484937 U CN 201821484937U CN 209182493 U CN209182493 U CN 209182493U
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- infrared
- visible light
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- circuit
- signal processing
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Abstract
The utility model relates to field of locating technology, more particularly to a kind of visible light positioning device, including LED locating module, infrared transmission module and visible light control unit circuit, LED locating module includes optical signal processing circuit and LED light emitting device, infrared transmission module includes infrared signal processing circuit and infrared light-emitting device, it can be seen that the first output end of light control unit circuit exports the visible optical locating signal of PWM form to optical signal processing circuit, visible optical locating signal is issued by LED light emitting device after optical signal processing circuit amplification；It can be seen that the second output terminal of light control unit circuit exports infrared signal to infrared signal processing circuit, carrier signal is modulated by infrared signal processing circuit, infrared signal is issued by infrared light-emitting device.The utility model can issue visible optical locating signal and infrared signal, can be realized visible light-seeking and infrared positioning.
Description
Technical field
The utility model relates to field of locating technology more particularly to a kind of visible light positioning devices.
Background technique
It can be realized megastore shopping guide using the visible light communication technology of intelligent terminal, commodity price, weight, guarantor be provided
The information such as matter phase, position, but intelligent terminal in the market is more and more, to realize the visible light communication skill based on intelligent terminal
Art needs the camera shooting collector parameter to intelligent terminal to set, but camera shooting collector is various in style, so far,
User can't be allowed to realize visible light communication technology using the intelligent terminal of oneself, need to unite to intelligent terminal
One customization, and is mounted on supermarket shopping car, but megastore, and the tool for loading commodity not only has shopping cart there are also shopping baskets
Load tools Deng other, select the user of other loading tools shopping such as shopping basket that cannot experience supermarket shopping guide, positioning etc. its
His function.How each user in supermarket accurate, be quickly found out needs commodity to be allowed, and the time for reducing shopping seems more next
It is more important.
It is the communication mode for transmitting coal quality, light wave and radio wave that visible light positioning device realization indoor positioning, which is with light wave,
It is all electromagnetic wave, but light wave has many advantages, such as that transmission frequency bandwidth, message capacity be big and strong antijamming capability.Light wave is according to its wavelength
Length can be divided into infrared waves, visible light and ultraviolet.Visible light indoor positioning, as light source, is realized using visible LED
Indoor positioning, specifically, location information to be transmitted are encoded as digital signal first；Then the digital signal is used for modulation light
The driving current in source or the duration of driving voltage or frequency so that light source high frequency flicker, then using optical receiver apparatus into
Indoor visible light positioning is realized in row decoding.Infrared waves are the electromagnetic waves between a kind of wavelength between radio wave and visible light wave,
Infrared waves realize that indoor positioning can cover space to be measured by the infrared net that multipair transmitter and receiver are made into, directly right
Moving target is positioned.
Utility model content
The utility model provides a kind of visible light positioning device, can issue visible optical locating signal and infrared signal,
It can be realized visible light-seeking and infrared positioning.
In order to realize the purpose of this utility model, used technical solution is: visible light positioning device, including LED fixed
Position module, infrared transmission module and visible light control unit circuit, LED locating module include optical signal processing circuit and LED hair
Optical device, infrared transmission module include infrared signal processing circuit and infrared light-emitting device, it is seen that the of light control unit circuit
One output end exports the visible optical locating signal of PWM form to optical signal processing circuit, by LED after optical signal processing circuit amplification
Luminescent device issues visible optical locating signal；It can be seen that the second output terminal of light control unit circuit exports infrared signal to infrared letter
Number processing circuit, is modulated into carrier signal by infrared signal processing circuit and issues infrared signal by infrared light-emitting device.
Prioritization scheme as the utility model, it is seen that light-seeking device further includes that LED constant-current drive circuit and constant current turn
AC conversion is direct current by constant voltage circuit, constant current driver circuit for LED, and constant current turns constant voltage circuit for constant current driver circuit for LED
The voltage of output is converted into 5V or 3.3V, and constant current turns constant voltage circuit and exports electric current to visible light control unit circuit, it is seen that light-operated
Element circuit processed converts the electric current that constant current turns constant voltage circuit output to the visible optical locating signal of PWM form.
As the prioritization scheme of the utility model, LED locating module further includes control switch, and control switch is connected to light letter
Number between processing circuit and LED light emitting device.
As the prioritization scheme of the utility model, optical signal processing circuit is triode or metal-oxide-semiconductor.
As the prioritization scheme of the utility model, infrared signal processing circuit is triode.
As the prioritization scheme of the utility model, LED light emitting device is light emitting diode.
As the prioritization scheme of the utility model, infrared light-emitting device is infrared light-emitting diode.
As the prioritization scheme of the utility model, the visible light control unit circuit includes single-chip microcontroller.
The utility model has the effect of positive: 1) the utility model emits white light signal, infrared hair by LED light emitting device
Optical diode emits infrared signal, and visible light positioning device is allowed to launch white light signal and infrared waves signal simultaneously, fits
It is used together in megastore, supermarket.It, can be with using intelligent terminal if installing intelligent terminal on supermarket shopping car
It realizes indoor white light positioning, infrared receiving set is installed on Supermarket shopping baskets or user voluntarily wears infrared receiving set, it can
To realize that indoor infrared wave positions；
2) the utility model circuit structure is simple, at low cost, is integrated on existing fluorescent tube, convenient for indoors
It lays.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the whole schematic diagram of the utility model；
Fig. 2 is the circuit diagram of visible light control unit circuit；
Fig. 3 is the circuit diagram of LED locating module；
Fig. 4 is the circuit diagram of infrared transmission module；
Fig. 5 is overall structure figure of the invention.
Wherein: 1, visible light control unit circuit, 2, optical signal processing circuit, 3, LED light emitting device, 4, infrared signal
Processing circuit, 5, infrared light-emitting device, 6, constant current driver circuit for LED, 7, constant current turn constant voltage circuit, 8, control switch.
Specific embodiment
As shown in Figs. 1-5, the utility model discloses a kind of visible light positioning devices, including LED locating module, infrared hair
Penetrate module and visible light control unit circuit 1, LED locating module includes optical signal processing circuit 2 and LED light emitting device 3, red
Outer transmitting module includes infrared signal processing circuit 4 and infrared light-emitting device 5, it is seen that the first output of light control unit circuit 1
End exports the visible optical locating signal of PWM form to optical signal processing circuit 2, by LED after amplifying by optical signal processing circuit 2
Luminescent device 3 issues visible optical locating signal；It can be seen that the second output terminal of light control unit circuit 1 exports infrared signal to infrared
Signal processing circuit 4 is modulated into carrier signal by infrared signal processing circuit 4 and issues infrared signal by infrared light-emitting device 5.
Visible light positioning device further includes that constant current driver circuit for LED 6 and constant current turn constant voltage circuit 7, constant current driver circuit for LED
6 by AC conversion be direct current, constant current turn constant voltage circuit 7 by the voltage that constant current driver circuit for LED 6 exports be converted into 5V or
3.3V, constant current turn constant voltage circuit 7 and export electric current to visible light control unit circuit 1, it is seen that light control unit circuit 1 turns constant current
The electric current that constant voltage circuit 7 exports is converted into the visible optical locating signal of PWM form.
LED locating module further includes control switch 8, and control switch 8 is connected to optical signal processing circuit 2 and LED light emitter
Between part 3.
Visible light positioning device obtains electric current from power supply, domestic power supply or battery, drives electricity by LED constant current
Road 6 converts alternating current to direct current；Constant current turn input voltage that constant voltage circuit 7 is obtained from constant current driver circuit for LED 6 3V~
100V, turning 7 output voltage of constant voltage circuit through constant current is 5V or 3.3V.It can be seen that 1 power end pin of light control unit circuit inputs 5V
Or 3.3V, one end pin, which exports, gives LED locating module, and one end pin is exported to infrared transmission module.Wherein, it is seen that photocontrol list
First circuit 1 includes single-chip microcontroller, can also be realized by controller or modulation circuit etc..
LED locating module includes optical signal processing circuit 2, control switch 8 and LED luminescent device 3, by visible light-operated
Element circuit 1 processed can turn constant current the visible light that the electric current that constant voltage circuit 7 exports is converted to PMW form (pulse width modulation regime)
Output is to optical signal processing circuit 2 after optical locating signal, after triode or the metal-oxide-semiconductor amplification of optical signal processing circuit 2
It is exported again to control switch 8, when control switch 8 is closed, LED light emitting device 3 issues visible light-seeking in luminous form and believes
Number.The effect of MOS pipe is exactly the driving capability for improving circuit, and signal is amplified.LED light emitting device is light emitting diode.
Infrared transmission module is made of infrared signal processing circuit 4 and infrared light-emitting device 5, sample frequency 38KHZ, will
Infrared signal to be sent is exported by visible light control unit circuit 1 to infrared signal processing circuit 4, infrared signal processing circuit
4 are modulated into the carrier signal of 38KHZ by triode amplification, and are sent out in the form of light pulse by infrared light-emitting device 5,
Infrared light-emitting device 5 is an infrared light-emitting diode.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (8)
1. visible light positioning device, it is characterised in that: including LED locating module, infrared transmission module and visible light control unit
Circuit (1), the LED locating module include optical signal processing circuit (2) and LED light emitting device (3), the infrared emission
Module includes infrared signal processing circuit (4) and infrared light-emitting device (5), it is seen that the first output of light control unit circuit (1)
The visible optical locating signal that end exports PWM form is given optical signal processing circuit (2), by LED after optical signal processing circuit (2) amplification
Luminescent device (3) issues visible optical locating signal；It can be seen that the second output terminal of light control unit circuit (1) export infrared signal to
Infrared signal processing circuit (4) is modulated into carrier signal by infrared signal processing circuit (4) and is sent out by infrared light-emitting device (5)
Infrared signal out.
2. visible light positioning device according to claim 1, it is characterised in that: the visible light positioning device further includes
Constant current driver circuit for LED (6) and constant current turn constant voltage circuit (7), and AC conversion is by the constant current driver circuit for LED (6)
Direct current, the constant current turn constant voltage circuit (7) and convert 5V or 3.3V, institute for the voltage that constant current driver circuit for LED (6) exports
The constant current stated turns constant voltage circuit (7) and exports electric current to visible light control unit circuit (1), the visible light control unit circuit
(1) electric current that constant current turns constant voltage circuit (7) output is converted to the visible optical locating signal of PWM form.
3. visible light positioning device according to claim 2, it is characterised in that: the LED locating module further includes control
System switch (8), the control switch (8) are connected between optical signal processing circuit (2) and LED light emitting device (3).
4. visible light positioning device according to claim 1 or 2 or 3, it is characterised in that: the optical signal processing circuit
It (2) is triode or metal-oxide-semiconductor.
5. visible light positioning device according to claim 1 or 2 or 3, it is characterised in that: the infrared signal handles electricity
Road (4) is triode.
6. visible light positioning device according to claim 1 or 2 or 3, it is characterised in that: the LED light emitting device (3)
For light emitting diode.
7. visible light positioning device according to claim 1 or 2 or 3, it is characterised in that: the infrared light-emitting device
It (5) is infrared light-emitting diode.
8. visible light positioning device according to claim 1 or 2 or 3, it is characterised in that: the visible light control unit electricity
Road (1) includes single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484937.0U CN209182493U (en) | 2018-09-10 | 2018-09-10 | Visible light positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484937.0U CN209182493U (en) | 2018-09-10 | 2018-09-10 | Visible light positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209182493U true CN209182493U (en) | 2019-07-30 |
Family
ID=67359461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821484937.0U Active CN209182493U (en) | 2018-09-10 | 2018-09-10 | Visible light positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209182493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922874A (en) * | 2021-10-26 | 2022-01-11 | 中国矿业大学 | Real-time positioning system based on visible light wireless transmission |
-
2018
- 2018-09-10 CN CN201821484937.0U patent/CN209182493U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922874A (en) * | 2021-10-26 | 2022-01-11 | 中国矿业大学 | Real-time positioning system based on visible light wireless transmission |
| CN113922874B (en) * | 2021-10-26 | 2023-01-31 | 中国矿业大学 | Real-time positioning system based on visible light wireless transmission |
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