CN106953739A - Switching system and method that a kind of visible light communication communicates with WIFI - Google Patents
Switching system and method that a kind of visible light communication communicates with WIFI Download PDFInfo
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- CN106953739A CN106953739A CN201611208589.XA CN201611208589A CN106953739A CN 106953739 A CN106953739 A CN 106953739A CN 201611208589 A CN201611208589 A CN 201611208589A CN 106953739 A CN106953739 A CN 106953739A
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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
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
The switching system and method communicated the invention provides a kind of visible light communication with WIFI, including visible Optical Receivers, carrier communication module, WIFI communication modules, current detection circuit, comparator, the visible Optical Receivers is electrically connected with the carrier communication module, the carrier communication module is electrically connected with the WIFI communication modules, the current detection circuit is used for the electric current for detecting the visible Optical Receivers, the current detection circuit is electrically connected with the comparator, the comparator is electrically connected with the carrier communication module, the WIFI communication modules are also connected with external user equipment and outside WIFI communication modules；The current detection circuit detects that the mode of the electric current of the visible Optical Receivers is contact or contactless.Realize the automatic switchover that visible light communication communicates with WIFI.
Description
Technical field
The present invention relates to technical field of visible light communication, the switching system that more particularly to a kind of visible light communication communicates with WIFI
System and method.
Background technology
There was only a data passage in the system that existing visible Optical Receivers is merged with WIFI communication modules, once can
See that optic communication occurs abnormal, system will be unable to carry out proper communication, for example, Publication No. CN104618019A Chinese invention is special
Profit discloses a kind of WIFI access systems and data frame conversion method based on visible light communication, including light-Ethernet Adaptation Unit
With light-WIFI routers, the Ethernet access controller is connected to internet, and the Ethernet access controller is also by double
Twisted wire is connected to the described first visible optical transceiver module, and the light-WIFI routers can including WIFI access controllers and second
See optical transceiver module, the second visible optical transceiver module is connected with each other by twisted-pair feeder and the WIFI access controllers, institute
State and connected between the first visible optical transceiver module and the second visible optical transceiver module by visible light communication, the Ethernet access
Controller also includes data frame modular converter and frame buffering error control module, and the Internet connection to the data frame is changed
Module, the frame buffering error control module is connected to the described first visible optical transceiver module, the data frame modular converter with
Frame buffering error control module is connected with each other.Wherein, WIFI access controllers only receive the second visible optical transceiver module in system
Signal, once communication abnormality between the first visible optical transceiver module and the second visible optical transceiver module, system just can not be normal
Operation.
The content of the invention
The technical problems to be solved by the invention are：There is provided it is a kind of have visible light communication communicated with WIFI it is twin-channel can
See switching system and method that optic communication communicates with WIFI.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
The switching system that a kind of visible light communication communicates with WIFI, including visible Optical Receivers, carrier communication module,
WIFI communication modules, current detection circuit, comparator, the visible Optical Receivers are electrically connected with the carrier communication module,
The carrier communication module is electrically connected with the WIFI communication modules, and the current detection circuit is used to detect that the visible ray connects
The electric current of module is received, the current detection circuit is electrically connected with the comparator, the comparator and the carrier communication module
Electrical connection.
The beneficial effects of the present invention are, it is seen that pass through carrier communication module between Optical Receivers and WIFI communication modules
It is communicatively coupled, carrier communication module carries communication protocol, visible ray receiver module can be achieved without setting up communication protocol
With the data communication between WIFI communication modules, simple in construction, it is convenient to develop；It is right respectively by current detection circuit and comparator
It can be seen that the electric current of Optical Receivers is detected and compared, so that the communications status for realizing visible Optical Receivers is detected；It can be seen that
Optical Receivers output signal through carrier communication module enter WIFI communication modules, WIFI communication modules also have directly with outside
Portion's WIFI communication modules connect the function into row data communication, and the signal of visible Optical Receivers is entered by carrier communication module
Row is changed and is delivered to WIFI communication modules, while whether the also controllable WIFI communication modules of carrier communication module receive carrier wave and lead to
Believe the data of module transfer, i.e., by carrier communication module control WIFI communication modules receive the signal of visible light communication still with
Outside WIFI communication modules set up communication connection, simple and reasonable, and data-handling capacity is strong, make system logical in no visible ray
It can be communicated in the case of letter by WIFI communication modules, prevent communication abnormality or interruption.
The changing method that a kind of visible light communication communicates with WIFI,
Very first time threshold value, the second time threshold, storage are preset in predetermined current threshold in comparator, carrier communication module
WIFI communication modules receive the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers
Size is carried out with the current threshold to be compared, size comparative result is transferred to carrier communication module；
The carrier communication module receives the current value of the visible Optical Receivers and the size of the current threshold
Comparative result；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, carrier communication mould
Block records first continuous time of the current value less than the current threshold of the visible Optical Receivers, if described first is continuous
Time is more than the very first time threshold value, then carrier communication module control WIFI communication modules receive outside WIFI communication modules
Signal of communication；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, carrier wave leads to
Letter module records second continuous time of the current value more than or equal to the current threshold of the visible Optical Receivers, if institute
Stated for the second continuous time more than second time threshold, then carrier communication module control WIFI communication modules reception carrier communication
The signal of communication of module.
The beneficial effects of the present invention are：Current detection circuit, comparator, carrier communication module are respectively to visible light-receiving
The current value of module is detected, compares, analyzed, and very first time threshold value and the second time threshold can be identical or differed, and carrier wave leads to
Believe that module controls WIFI communication modules to receive signal of communication or outside WIFI that carrier communication module is inputted according to analysis result
The signal of communication module, realizes that the automatic detection to visible Optical Receivers running status, and visible light communication are led to WIFI
The automatic switchover of letter, method is reasonable, simple operation.
The changing method that a kind of visible light communication communicates with WIFI,
Very first time threshold value, the second time threshold, storage are preset in predetermined current threshold in comparator, carrier communication module
WIFI communication modules receive the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers
Size is carried out with the current threshold to be compared, size comparative result is transferred to MCU；
The MCU receives the current value of the visible Optical Receivers and the size comparative result of the current threshold,
And record the first continuous time that the current value of the visible Optical Receivers is less than the current threshold, or visible light-receiving
The current value of module is more than or equal to the second continuous time of the current threshold；
First continuous time of record or the second continuous time are transferred to carrier communication module by the MCU；
Carrier communication module receives first continuous time or the second continuous time of the MCU transmission；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, if described first
Continuous time is more than the very first time threshold value, then carrier communication module control WIFI communication modules receive outside WIFI communications mould
The signal of communication of block；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, if described
Second continuous time was more than second time threshold, then carrier communication module control WIFI communication modules receive carrier communication mould
The signal of communication of block.
Compared with prior art, the present invention at least has advantages below：
Current detection circuit, comparator, MCU are detected to the current value of visible Optical Receivers, are compared, analyze, MCU respectively
Analysis result feed back to carrier communication module, very first time threshold value and the second time threshold can be identical or differed, carrier wave
Communication module controls WIFI communication modules to receive signal of communication or the outside that carrier communication module is inputted according to analysis result
The signal of WIFI communication modules, is realized to the automatic detection of visible Optical Receivers running status, and visible light communication with
The automatic switchover of WIFI communications, method is reasonable, simple operation.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
The structured flowchart for the switching system that Fig. 1 communicates for the visible light communication of the embodiment of the present invention one with WIFI；
The structured flowchart for the switching system that Fig. 2 communicates for the visible light communication of the embodiment of the present invention two with WIFI；
The structured flowchart for the switching system that Fig. 3 communicates for the visible light communication of the embodiment of the present invention three with WIFI；
Fig. 4 is the injection circuit of the embodiment of the present invention three and the attachment structure schematic diagram of LED supply lines；
The flow chart for the changing method that Fig. 5 communicates for the visible light communication of the embodiment of the present invention four with WIFI；
The flow chart for the changing method that Fig. 6 communicates for the visible light communication of the embodiment of the present invention five with WIFI.
Label declaration：
1st, visible Optical Receivers；2nd, carrier communication module；3rd, WIFI communication modules；4th, current detection circuit；5th, compare
Device；6、MCU；7th, LED；8th, injection circuit；9th, LED supply lines；10th, outside WIFI communication modules；11st, external user is set
It is standby；12nd, external signal circuit；
21st, carrier communication chip；22nd, bandwidth-limited circuit；
81st, input coil；82nd, output winding.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only this
Invent a part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, the scope of protection of the invention is belonged to.
The design of most critical of the present invention is：Visible Optical Receivers is set up by carrier communication module to communicate with WIFI mould
Communication connection between block, WIFI communication modules can also be set up with outside WIFI communication modules and be connected, to visible light-receiving
Module running status is detected, when visible Optical Receivers operation exception, WIFI communication modules is received outside WIFI and is led to
Believe the signal of module, it is ensured that the normal operation of communication.
Fig. 1 to Fig. 4 is refer to, the invention provides the switching system that a kind of visible light communication communicates with WIFI, including can
See Optical Receivers 1, carrier communication module 2, WIFI communication modules 3, current detection circuit 4, comparator 5, the visible ray connects
Receive module 1 to electrically connect with the carrier communication module 2, the carrier communication module 2 is electrically connected with the WIFI communication modules 3,
The current detection circuit 4 is used for the electric current for detecting the visible Optical Receivers 1, the current detection circuit 4 and the ratio
Electrically connected compared with device 5, the comparator 5 is electrically connected with the carrier communication module 2.
Further, the carrier communication module 2 includes the carrier communication chip 21 of at least one, the comparator 5 with
The carrier communication chip 21 of one of them is electrically connected.
Seen from the above description, carry subchannel communication protocol in carrier communication chip 21, carrier communication module 2 include to
Few one carrier communication chip 21, then can handle the multicarrier communication signal of multichannel in carrier communication module 2, can also handle a variety of
The multicarrier communication signal of communication protocol, with stronger data-handling capacity, and programming is easy, and development cost is low；Carrier communication
Chip 21 receives comparator 5 to the comparative result of the current value of visible Optical Receivers 1 and analyzed, carrier communication chip 21
Not only there is the ability of processing carrier signal, also with the ability for handling other data, data-handling capacity is strong, simplifies system knot
Structure.
Further, the carrier communication module 2 includes carrier communication chip 21 and bandwidth-limited circuit 22, the band logical
Filter circuit 22 is electrically connected with the visible Optical Receivers 1, is also electrically connected with the carrier communication chip 21, and the carrier wave leads to
Letter chip 21 is electrically connected with the WIFI communication modules 3.
Seen from the above description, it is seen that the signal of Optical Receivers 1 reaches carrier wave after being filtered through bandwidth-limited circuit 22 and led to
Believe chip 21, WIFI communication modules 3 are finally reached, with stronger signal antijamming capability and data-handling capacity.
Further, the carrier communication chip 21 is power line carrier communication chip 21, coaxial-cable carrier communication core
Any one in piece 21.
Seen from the above description, it is mono- comprising AFE in power line carrier communication chip 21, coaxial-cable carrier communication chip 21
Member, can handle a variety of carrier signals, and strong with data-handling capacity, the quick advantage of data processing makes the carrier communication
Module 2 has stronger data-handling capacity and faster data processing speed, and system development cycle is short.
Further, also including MCU6, the comparator 5 is electrically connected by the MCU6 with the carrier communication module 2.
Seen from the above description, comparator 5 is transferred to MCU6 to the comparative result of the current value of visible Optical Receivers 1 and entered
Row analysis, the result after MCU6 analyses is transmitted further to carrier communication module 2, by point of the current value of visible Optical Receivers 1
Analyse the processing with carrier signal to separate, it is convenient that exploitation is safeguarded.
Further, the outside WIFI communication modules 10 also including at least one, the outside WIFI communication modules 10 with
The WIFI communication modules 3 are connected, and the WIFI communication modules 3 are also connected with external user equipment 11.
Seen from the above description, by being communicated to connect between outside WIFI communication modules 10 and WIFI communication modules 3, realize
The WIFI communication functions of system, it is rational in infrastructure；WIFI communication modules 3 either receive the signal of carrier communication module 2, still connect
The signal of outside WIFI communication modules 10 is received, its output end is connected to external user equipment 11, that is, passes through WIFI communication modules 3
Realize the connection of system and external user equipment 11, rational in infrastructure, simple operation.
Further, the current detection circuit 4 detects that the mode of the electric current of the visible Optical Receivers 1 is contact
Or it is contactless.
Seen from the above description, current detection circuit 4 detects that the mode of the electric current of visible Optical Receivers 1 is contact
Or contactless, flexible structure.
Further, also including LED 7, the LED 7 is used to send optical signal to visible Optical Receivers 1.
Seen from the above description, LED 7 sends optical signal to visible Optical Receivers 1, realizes visible light communication, structure
Rationally.
Further, also including injection circuit 8 and LED supply lines 9, the input of the injection circuit 8 with
External signal circuit 12 is electrically connected, and output end is connected with the LED supply lines 9, the LED supply lines 9 and the electricity of LED 7
Connection.
Seen from the above description, injection circuit 8 injects the signal of external signal circuit 12 in LED supply lines 9, real
Showed the connection between external signal and LED supply lines 9, input and the output end transmission of the injection circuit 8 it is equal
It is simple and reasonable for carrier signal.
Further, the injection circuit 8 includes input coil 81 and output winding 82, the injection circuit
8 input coil 81 is electrically connected with external signal circuit 12, and the output winding 82 of the injection circuit 8 is connected on described
The negative pole of LED supply lines 9.
Seen from the above description, input of the signal of external signal circuit 12 through injection circuit 8 in the form of difference
Coil 81 reaches output winding 82, and eventually arrives at LED supply lines 9, prevents between external signal circuit 12 and LED supply lines 9
It is directly connected to, with stronger anti-jamming effectiveness.
Fig. 1 is refer to, embodiments of the invention one are：
The switching system that a kind of visible light communication communicates with WIFI, including visible Optical Receivers 1, carrier communication module 2,
WIFI communication modules 3, current detection circuit 4, comparator 5, the visible Optical Receivers 1 and the electricity of carrier communication module 2
Connection, the carrier communication module 2 is electrically connected with the WIFI communication modules 3, and the current detection circuit 4 is used to detect described
It can be seen that the electric current of Optical Receivers 1, the current detection circuit 4 is electrically connected with the comparator 5, the comparator 5 with it is described
Carrier communication module 2 is electrically connected, and the WIFI communication modules 3 are also connected with external user equipment 11；The current detection circuit 4
The mode for detecting the electric current of the visible Optical Receivers 1 is contact or contactless.
Fig. 2 is refer to, embodiments of the invention two are：
The switching system that a kind of visible light communication communicates with WIFI, it is described also including MCU6 on the basis of embodiment one
Comparator 5 is electrically connected by the MCU6 with the carrier communication module 2.
Fig. 3 to Fig. 4 is refer to, embodiments of the invention three are：
The switching system that a kind of visible light communication communicates with WIFI, on the basis of embodiment one, also including at least one
Outside WIFI communication modules 10, injection circuit 8, LED supply lines 9, LED 7, the carrier communication module 2 include carry
Wave communication chip 21 and bandwidth-limited circuit 22, the bandwidth-limited circuit 22 are electrically connected with the visible Optical Receivers 1, also
Electrically connected with the carrier communication chip 21, the carrier communication chip 21 is electrically connected with the WIFI communication modules 3, the ratio
Electrically connected compared with device 5 with the carrier communication chip 21；The outside WIFI communication modules 10 connect with the WIFI communication modules 3
Connect；The injection circuit 8 includes input coil 81 and output winding 82, the input coil 81 of the injection circuit 8
Electrically connected with external signal circuit 12, the output winding 82 of the injection circuit 8 is connected on the negative of the LED supply lines 9
Pole, the LED supply lines 9 is electrically connected with the LED 7, and the LED 7 is used to send optical signal to visible Optical Receivers
1。
The external signal circuit 12 refers to the circuit that output signal is high-frequency carrier signal.
It refer to Fig. 5, the changing method that a kind of visible light communication communicates with WIFI,
Very first time threshold value, the second time threshold, storage are preset in predetermined current threshold in comparator, carrier communication module
WIFI communication modules receive the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers
Size is carried out with the current threshold to be compared, size comparative result is transferred to carrier communication module；
The carrier communication module receives the current value of the visible Optical Receivers and the size of the current threshold
Comparative result；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, carrier communication mould
Block records first continuous time of the current value less than the current threshold of the visible Optical Receivers, if described first is continuous
Time is more than the very first time threshold value, then carrier communication module control WIFI communication modules receive outside WIFI communication modules
Signal of communication；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, carrier wave leads to
Letter module records second continuous time of the current value more than or equal to the current threshold of the visible Optical Receivers, if institute
Stated for the second continuous time more than second time threshold, then carrier communication module control WIFI communication modules reception carrier communication
The signal of communication of module.
Fig. 5 is refer to, embodiments of the invention four are：
The changing method that a kind of visible light communication communicates with WIFI, methods described is：
Very first time threshold value, the second time threshold, storage are preset in predetermined current threshold in comparator, carrier communication module
WIFI communication modules receive the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers
Size is carried out with the current threshold to be compared, size comparative result is transferred to carrier communication module；
The carrier communication module receives the current value of the visible Optical Receivers and the size of the current threshold
Comparative result；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, carrier communication mould
Block records first continuous time of the current value less than the current threshold of the visible Optical Receivers, if described first is continuous
Time is more than the very first time threshold value, then carrier communication module control WIFI communication modules receive outside WIFI communication modules
Signal of communication；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, carrier wave leads to
Letter module records second continuous time of the current value more than or equal to the current threshold of the visible Optical Receivers, if institute
Stated for the second continuous time more than second time threshold, then carrier communication module control WIFI communication modules reception carrier communication
The signal of communication of module.
It refer to Fig. 6, the changing method that a kind of visible light communication communicates with WIFI,
Very first time threshold value, the second time threshold, storage are preset in predetermined current threshold in comparator, carrier communication module
WIFI communication modules receive the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers
Size is carried out with the current threshold to be compared, size comparative result is transferred to MCU；
The MCU receives the current value of the visible Optical Receivers and the size comparative result of the current threshold,
And record the first continuous time that the current value of the visible Optical Receivers is less than the current threshold, or visible light-receiving
The current value of module is more than or equal to the second continuous time of the current threshold；
First continuous time of record or the second continuous time are transferred to carrier communication module by the MCU；
Carrier communication module receives first continuous time or the second continuous time of the MCU transmission；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, if described first
Continuous time is more than the very first time threshold value, then carrier communication module control WIFI communication modules receive outside WIFI communications mould
The signal of communication of block；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, if described
Second continuous time was more than second time threshold, then carrier communication module control WIFI communication modules receive carrier communication mould
The signal of communication of block.
Fig. 6 is refer to, embodiments of the invention five are：
The changing method that a kind of visible light communication communicates with WIFI, methods described is：
Very first time threshold value, the second time threshold, storage are preset in predetermined current threshold in comparator, carrier communication module
WIFI communication modules receive the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers
Size is carried out with the current threshold to be compared, size comparative result is transferred to MCU；
The MCU receives the current value of the visible Optical Receivers and the size comparative result of the current threshold,
And record the first continuous time that the current value of the visible Optical Receivers is less than the current threshold, or visible light-receiving
The current value of module is more than or equal to the second continuous time of the current threshold；
First continuous time of record or the second continuous time are transferred to carrier communication module by the MCU；
Carrier communication module receives first continuous time or the second continuous time of the MCU transmission；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, if described first
Continuous time is more than the very first time threshold value, then carrier communication module control WIFI communication modules receive outside WIFI communications mould
The signal of communication of block；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, if described
Second continuous time was more than second time threshold, then carrier communication module control WIFI communication modules receive carrier communication mould
The signal of communication of block.
In summary, switching system and method that the visible light communication that the present invention is provided communicates with WIFI, are noted by signal
Enter circuit 8 to inject the signal of external signal circuit 12 in LED supply lines 9, and transmit to LED 7, it is seen that Optical Receivers 1
Receive the signal of LED 7 and change carrier communication module 2 to being transferred to WIFI communication modules 3, the letter of WIFI communication modules 3
Number output to external user equipment 11, realize visible light communication；Given by the signal transmission of outside WIFI communication modules 10
WIFI communication modules 3, the signal output of WIFI communication modules 3 realizes WIFI communications to external user equipment 11；Pass through electric current
Detect that circuit 4, comparator 5, carrier communication module 2 and/or MCU6 realize the detection to the visible running status of Optical Receivers 1,
And then the signal or outside WIFI communications mould of carrier communication module 2 are received to WIFI communication modules 3 by carrier communication module 2
The signal of block 10 is automatically controlled, i.e., visible light communication and WIFI communications are automatically switched by carrier communication module 2,
Simple and reasonable to ensure the normal operation communicated between system and external user equipment 11, accommodative ability of environment is strong, resists dry
Immunity is strong, and it is convenient that exploitation is safeguarded.
The above, is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.Though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from technical solution of the present invention ambit, all using the methods and techniques content of the disclosure above to the present invention
Technical scheme makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore, it is every without departing from
The content of technical solution of the present invention, the technical spirit according to the present invention is to any simple modification made for any of the above embodiments, equivalent
Change and modify, still fall within technical solution of the present invention protection in the range of.
Claims (10)
1. the switching system that a kind of visible light communication communicates with WIFI, it is characterised in that lead to including visible Optical Receivers, carrier wave
Believe module, WIFI communication modules, current detection circuit, comparator, the visible Optical Receivers and the carrier communication module
Electrical connection, the carrier communication module is electrically connected with the WIFI communication modules, and the current detection circuit is used to detect described
It can be seen that the electric current of Optical Receivers, the current detection circuit is electrically connected with the comparator, the comparator and the carrier wave
Communication module is electrically connected.
2. the switching system that visible light communication according to claim 1 communicates with WIFI, it is characterised in that the carrier wave leads to
Letter module includes the carrier communication chip of at least one, and the comparator is electrically connected with the carrier communication chip of one of them
Connect.
3. the switching system that visible light communication according to claim 2 communicates with WIFI, it is characterised in that the carrier wave leads to
Believe that module includes carrier communication chip and bandwidth-limited circuit, the bandwidth-limited circuit is electrically connected with the visible Optical Receivers
Connect, also electrically connected with the carrier communication chip.
4. the switching system that visible light communication according to claim 1 communicates with WIFI, it is characterised in that also including MCU,
The comparator is electrically connected by the MCU with the carrier communication module.
5. the switching system that visible light communication according to claim 1 communicates with WIFI, it is characterised in that also including at least
The outside WIFI communication modules of one, the outside WIFI communication modules are connected with the WIFI communication modules, and the WIFI leads to
Letter module is also connected with external user equipment.
6. the switching system that visible light communication according to claim 1 communicates with WIFI, it is characterised in that the electric current inspection
Slowdown monitoring circuit detects that the mode of the electric current of the visible Optical Receivers is contact or contactless.
7. the switching system that visible light communication according to claim 6 communicates with WIFI, it is characterised in that also including LED
Lamp, injection circuit and LED supply lines, the LED are used to send optical signal to visible Optical Receivers, the signal note
The input for entering circuit is electrically connected with external signal circuit, and output end is connected with the LED supply lines, the LED supply lines with
The LED electrical connection.
8. the switching system that visible light communication according to claim 7 communicates with WIFI, it is characterised in that the signal note
Entering circuit includes input coil and output winding, and the input coil of the injection circuit is electrically connected with external signal circuit,
The output winding of the injection circuit is connected on the negative pole of the LED supply lines.
9. the changing method that a kind of visible light communication communicates with WIFI, it is characterised in that
Very first time threshold value, the second time threshold, storage WIFI are preset in predetermined current threshold in comparator, carrier communication module
Communication module receives the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers and institute
State current threshold and carry out size comparison, size comparative result is transferred to carrier communication module；
The current value that the carrier communication module receives the visible Optical Receivers is compared with the size of the current threshold
As a result；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, carrier communication module note
The current value for recording the visible Optical Receivers is less than the first continuous time of the current threshold, if first continuous time
More than the communication of the very first time threshold value, the then outside WIFI communication modules of carrier communication module control WIFI communication modules reception
Signal；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, carrier communication mould
The current value that block records the visible Optical Receivers is more than or equal to the second continuous time of the current threshold, if described the
Two continuous times were more than second time threshold, then carrier communication module control WIFI communication modules receive carrier communication module
Signal of communication.
10. the changing method that a kind of visible light communication communicates with WIFI, it is characterised in that
Very first time threshold value, the second time threshold, storage WIFI are preset in predetermined current threshold in comparator, carrier communication module
Communication module receives the state of signal；
Current detection circuit detects the current value of visible Optical Receivers and is transferred to comparator；
Comparator receives the current value of the visible Optical Receivers, and by the current value of the visible Optical Receivers and institute
State current threshold and carry out size comparison, size comparative result is transferred to MCU；
The MCU receives the current value of the visible Optical Receivers and the size comparative result of the current threshold, and remembers
The current value for recording the visible Optical Receivers is less than the first continuous time of the current threshold, or visible Optical Receivers
Current value be more than or equal to the current threshold the second continuous time；
First continuous time of record or the second continuous time are transferred to carrier communication module by the MCU；
Carrier communication module receives first continuous time or the second continuous time of the MCU transmission；
If carrier communication module judges that WIFI communication modules receive the signal of communication of carrier communication module, if described first is continuous
Time is more than the very first time threshold value, then carrier communication module control WIFI communication modules receive outside WIFI communication modules
Signal of communication；
If carrier communication module judges that WIFI communication modules receive the signal of communication of outside WIFI communication modules, if described second
Continuous time is more than second time threshold, then carrier communication module control WIFI communication modules receive carrier communication module
Signal of communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208589.XA CN106953739A (en) | 2016-12-23 | 2016-12-23 | Switching system and method that a kind of visible light communication communicates with WIFI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611208589.XA CN106953739A (en) | 2016-12-23 | 2016-12-23 | Switching system and method that a kind of visible light communication communicates with WIFI |
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| CN201611208589.XA Pending CN106953739A (en) | 2016-12-23 | 2016-12-23 | Switching system and method that a kind of visible light communication communicates with WIFI |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152705A (en) * | 2019-06-28 | 2020-12-29 | Oppo广东移动通信有限公司 | Data transmission method, device, storage medium and electronic equipment |
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| CN205430248U (en) * | 2015-12-20 | 2016-08-03 | 南京邮电大学 | Support VLC+WiFi to unite access system's VLC receiving terminal |
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| CN104243295A (en) * | 2014-10-10 | 2014-12-24 | 国家电网公司 | Intelligent gateway device based on double-network mixed communication |
| CN105187123A (en) * | 2015-09-22 | 2015-12-23 | 波瑞电气有限公司 | Intelligent household safety controller of combining WIFI communication and visible light communication |
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