CN107342815B - Pairing system and method for visible light communication equipment - Google Patents
Pairing system and method for visible light communication equipment Download PDFInfo
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- CN107342815B CN107342815B CN201710719055.1A CN201710719055A CN107342815B CN 107342815 B CN107342815 B CN 107342815B CN 201710719055 A CN201710719055 A CN 201710719055A CN 107342815 B CN107342815 B CN 107342815B
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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
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1141—One-way transmission
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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
- H04B10/50—Transmitters
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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
- H04B10/60—Receivers
Abstract
The invention discloses a pairing system and a pairing method for visible light communication equipment. Wherein the system comprises: the unidirectional visible light transmitting device comprises an input unit and a visible light transmitting unit, the unidirectional visible light transmitting device comprises a visible light receiving unit and a pairing device comprising a display unit, the input unit starts pairing operation, the visible light transmitting unit transmits pairing request information, the visible light receiving unit receives the pairing request information and transmits pairing response information to the pairing device after the pairing request information passes verification, the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, the pairing operation information is displayed through the display unit, and the unidirectional visible light transmitting device realizes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit and input by the input unit. The pairing system and method for the visible light communication equipment provided by the invention save the cost of unidirectional equipment.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a pairing system and method for visible light communication equipment.
Background
A technology for wirelessly transmitting information using light in the visible light range, such as light generated by a Light Emitting Diode (LED), is one of the research hotspots in the current wireless communication field, and is an emerging technology with a promising prospect.
The visible light communication uses high-speed bright-dark flickering signals which are not perceived by naked eyes and are emitted by visible light such as light emitting diodes to transmit information. The common visible light signal transmission is mostly transmitted through a single-color LED, and the light signal emitted by the single-color LED is intercepted by a photodiode. In the existing visible light transmission application, most of the visible light transmission application is bidirectional transmission, namely, each communication device comprises an optical transmitting unit and an optical receiving unit, but in the low-power consumption sensor and the application of the internet of things, data only needs to be transmitted in one direction, unidirectional equipment is used, the unidirectional equipment only comprises the optical transmitting unit, and before the unidirectional equipment is used, pairing and initialization are needed to be completed according to a receiving end, and pairing and initialization data are stored in the unidirectional equipment.
Therefore, how to provide a pairing system that can pair a unidirectional device and a receiving end is an important issue to be solved in the industry.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a pairing system and method for visible light communication equipment.
In one aspect, the invention provides a pairing system for visible light communication equipment, which comprises a unidirectional visible light transmitting device, a visible light receiving device and a pairing device, wherein:
the unidirectional visible light transmitting device comprises an input unit and a visible light transmitting unit, the visible light receiving device comprises a visible light receiving unit, the pairing device comprises a display unit, the unidirectional visible light transmitting device is in visible light communication connection with the visible light receiving device, and the visible light receiving device is in communication connection with the pairing device;
the input unit is used for starting pairing operation, the unidirectional visible light transmitting device transmits pairing request information through the visible light transmitting unit, the visible light receiving device receives the pairing request information through the visible light receiving unit and transmits pairing response information to the pairing device after the pairing request information passes verification, the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, the pairing operation information is displayed through the display unit, and the unidirectional visible light transmitting device realizes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit and input by the input unit.
The pairing device comprises a receiving unit and a central processing unit, wherein the central processing unit is respectively connected with the receiving unit and the display unit, the receiving unit receives the pairing response information, and the central processing unit generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table and sends the pairing operation information to the display unit for display.
The pairing device further comprises a camera and an optical processing unit, the camera is connected with the optical processing unit, the optical processing unit is connected with the central processing unit, when the pairing operation information is input by the input unit, the visible light transmitting unit transmits pairing visible light information corresponding to the pairing operation information, the camera receives the pairing operation visible light information, the pairing operation visible light information is transmitted to the central processing unit after being processed by the optical processing unit, and the central processing unit verifies the pairing operation information input by the input unit according to the pairing operation information and the processed pairing operation visible light information.
The unidirectional visible light transmitting device comprises a storage unit and a first processing unit, wherein the first processing unit is respectively connected with the input unit, the storage unit and the visible light transmitting unit, the first processing unit is used for acquiring pairing request information from the storage unit after the input unit starts pairing operation, transmitting the pairing request information to the visible light transmitting unit, and the storage unit is used for storing the pairing request information.
Wherein the input unit comprises a key or a touch screen.
Wherein the input unit includes a serial port.
The visible light receiving device comprises a second processing unit and a sending unit, wherein the second processing unit is respectively connected with the visible light receiving unit and the sending unit, the second processing unit is used for verifying the pairing request information and generating pairing response information according to the pairing request information after verification is passed, and the sending unit is used for sending the pairing response information to the pairing device.
In another aspect, the present invention provides a pairing method for a visible light communication device, including:
the unidirectional visible light transmitting device transmits pairing request information to the visible light receiving device;
the visible light receiving device receives the pairing request information, and if the pairing request information is judged to be verified, pairing response information is sent to the pairing device;
the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table;
the unidirectional visible light transmitting device completes pairing with the visible light receiving device according to the pairing operation information.
According to the pairing system and method for the visible light communication equipment, the unidirectional visible light transmitting device is in visible light communication connection with the visible light receiving device, the visible light receiving device is in communication connection with the pairing device, the unidirectional visible light transmitting device transmits pairing request information to the visible light receiving device, after the visible light receiving device verifies that the pairing request information is passed, pairing response information is transmitted to the pairing device, the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, the pairing operation information is displayed through the display unit of the pairing operation information, and the unidirectional visible light transmitting device finishes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit, so that the cost of unidirectional equipment is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a pairing system for a visible light communication device according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a pairing device of a pairing system for a visible light communication device according to another embodiment of the invention;
fig. 3 is a flow chart illustrating a pairing method of a visible light communication device according to an embodiment of the invention;
fig. 4 is a flowchart of a pairing method of a visible light communication device according to another embodiment of the invention;
reference numerals illustrate:
1-a unidirectional visible light transmitting device; 2-a visible light receiving device;
3-pairing means; 11-a memory unit;
12-a first processing unit; 13-a visible light transmitting unit;
14-an input unit; 21-a visible light receiving unit;
22-a second processing unit; 23-a transmitting unit;
31-a display unit 32-a central processing unit;
33-a receiving unit; 34-a camera;
35-an optical processing unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of a pairing system for a visible light communication device according to an embodiment of the present invention, where, as shown in fig. 1, the pairing system for a visible light communication device provided by the present invention includes a unidirectional visible light transmitting device 1, a visible light receiving device 2, and a pairing device 3, where:
the unidirectional visible light transmitting device 1 comprises an input unit 14 and a visible light transmitting unit 13, the visible light receiving device 2 comprises a visible light receiving unit 21, the pairing device 3 comprises a display unit 31, the unidirectional visible light transmitting device 1 is in visible light communication connection with the visible light receiving device 2, the visible light receiving device 2 is in communication connection with the pairing device 3, and the communication connection can be wired connection or wireless connection in a WIFI (wireless fidelity), visible light and other modes; wherein, the input unit 14 may be a key, the visible light transmitting unit 13 may be a single color LED, the visible light receiving unit 21 may be a photodiode, and the display unit 31 may be a single color liquid crystal screen.
The input unit 14 is used to initiate pairing operation, for example, the input unit 14 employs a key which is pressed for 3s to initiate pairing operation; after the pairing operation is started, the unidirectional visible light transmitting device 1 transmits pairing request information through the visible light transmitting unit 13, the pairing request information can be pre-stored by the unidirectional visible light transmitting device 1, the visible light receiving device 2 receives the pairing request information through the visible light receiving unit 21 and verifies the pairing request information, after the pairing request information passes verification, pairing response information is generated according to the pairing request information, then the pairing response information is transmitted to the pairing device 3, the pairing device 3 can receive the pairing response information, generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, then transmits the pairing operation information to the display unit 31 for displaying, an operator can input the pairing operation information displayed by the display unit into the unidirectional visible light transmitting device 1 through the input unit, the unidirectional visible light transmitting device 1 obtains pairing verification information according to the pairing operation information, then transmits the pairing verification information, the pairing verification information is received by the visible light receiving device 2, and verifies the pairing verification information, namely, after the pairing verification is passed, the unidirectional visible light receiving device 1 realizes the unidirectional visible light receiving device 2. It can be understood that the pairing operation comparison table includes preset information and input operations identifiable by the unidirectional visible light transmitting device corresponding to the information, and the pairing response information can be parsed according to the preset information to obtain a series of input operations corresponding to the pairing response information, that is, the pairing operation information. For example, the input unit of the unidirectional visible light transmitting device is a single key, the preset information is an arabic number 1, the input operation corresponding to the preset information is a short press of the key, the preset information is an arabic number 2, and the input operation corresponding to the preset information is a short press of the key.
The pairing request information may include a model number of the visible light transmitting device, a modem mode, and whether to encrypt the information, and after the visible light receiving device 2 receives the pairing request information including the information, it may determine whether pairing with the visible light transmitting device is possible according to the model number of the visible light transmitting device, whether the modem mode is supported, and whether the encryption requirement can be met when encryption is required. If the pairing request information passes the verification, the visible light receiving device 2 generates corresponding pairing response information, which may include the type of the visible light receiving device 2, the confirmed modem mode, and if encryption is needed, the password information.
According to the pairing system of the visible light communication equipment, the unidirectional visible light transmitting device is in visible light communication connection with the visible light receiving device, the visible light receiving device is in communication connection with the pairing device, the unidirectional visible light transmitting device transmits pairing request information to the visible light receiving device, after the visible light receiving device verifies that the pairing request information is passed, pairing response information is transmitted to the pairing device, the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, the pairing operation information is displayed through the display unit of the pairing operation information, and the unidirectional visible light transmitting device completes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit, so that the cost of unidirectional equipment is saved.
Further, on the basis of the above embodiment, the pairing device includes a receiving unit 33 and a central processing unit 32, the central processing unit 32 is respectively connected with the receiving unit 33 and the display unit 31, the receiving unit 33 receives the pairing response information sent by the visible light receiving device 2, and the central processing unit 32 generates the pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, and sends the pairing operation information to the display unit 31 for display.
Fig. 2 is a schematic structural diagram of a pairing device of a pairing system for a visible light communication device according to another embodiment of the present invention, as shown in fig. 2, further, based on the foregoing embodiments, the pairing device 3 further includes a camera 34 and an optical processing unit 35, where the camera 34 is connected to the optical processing unit 35, the optical processing unit 35 is connected to the central processing unit 32, when the pairing operation information is input by the input unit 14, the visible light transmitting unit 13 transmits pairing visible light information corresponding to the pairing operation information, the camera 34 receives the pairing operation visible light information, the pairing operation visible light information is processed by the optical processing unit 35 and then transmitted to the central processing unit 32, and the central processing unit 32 verifies the pairing operation information input by the input unit 14 according to the pairing operation information and the processed pairing operation visible light information. Wherein the camera 34 is a CMOS camera, and the central processing unit 32 may be implemented by a single-chip microcomputer.
According to the pairing system of the visible light communication equipment, provided by the invention, the pairing operation information input by the input unit is verified by arranging the camera and the optical processing unit, so that errors in the process of inputting the pairing operation information can be timely found, and the accuracy of inputting the pairing operation information is improved.
Further, on the basis of the above embodiments, the unidirectional visible light transmitting apparatus 1 includes a storage unit 11 and a first processing unit 12, where the first processing unit 12 is connected to the input unit 14, the storage unit 11 and the visible light transmitting unit 13, and after the input unit 14 starts the pairing operation, the first processing unit 12 may acquire the pairing request information stored in advance from the storage unit 11, and then transmit the pairing request information to the visible light transmitting unit 13, where the visible light transmitting unit 13 transmits the pairing request information, and the storage unit 11 is used to store the pairing request information. The first processing unit 12 may be implemented by a single-chip microcomputer.
Further, on the basis of the above embodiments, the input unit 14 includes a key or a touch screen. The input unit 14 is configured to input information to the unidirectional visible light transmitting device 1, and for an application environment where the input information is not complex, a single key or a combination of keys may be used, and for a single key, meanings represented by different key frequencies may be predefined, so that the unidirectional visible light transmitting device 1 can identify key information when the key information is input. The input unit 14 may also use a touch screen to perform the entry of the pairing operation information.
Further, the input unit 14 includes a serial port on the basis of the above embodiments. For example, the serial port may be externally connected to a keyboard, and in case of inconvenient direct operation of the input unit, the input of the pairing operation information may be completed through the externally connected keyboard.
Further, on the basis of the above embodiments, the visible light receiving apparatus 2 includes a second processing unit 22 and a transmitting unit 23, the second processing unit 22 is connected to the visible light receiving unit 21 and the transmitting unit 23, respectively, the second processing unit 22 is configured to verify the pairing request information, generate the pairing response information according to the pairing request information after the verification is passed, and the transmitting unit 23 is configured to transmit the pairing response information to the pairing apparatus 3. The second processing unit 22 may be implemented by a single chip, and the sending unit 23 is selected according to actual communication needs, which is not limited in the embodiment of the present invention.
Fig. 3 is a flow chart of a pairing method of a visible light communication device according to an embodiment of the present invention, and as shown in fig. 3, the pairing method of a visible light communication device provided by the present invention includes:
s301, after an input unit of the unidirectional visible light transmitting device starts pairing operation, the visible light transmitting unit of the unidirectional visible light transmitting device transmits pairing request information;
specifically, the unidirectional visible light transmitting device needs to be paired with the visible light receiving device before use. The pairing operation may be started through the input unit of the unidirectional visible light transmitting apparatus, for example, the input unit employs a single key, and the single key is pressed for 3 seconds to start the pairing operation. After the pairing operation is started, the first processor of the unidirectional visible light transmitting device obtains pairing request information from a storage unit and transmits the pairing request information to a visible light transmitting unit of the unidirectional visible light transmitting device, and the visible light transmitting unit transmits the pairing request information. The pairing request information may be pre-stored in the storage unit, and may include a model number, a modem mode, and whether information is encrypted or not of the visible light transmitting apparatus.
S302, the visible light receiving device receives the pairing request information, if the pairing request information is judged to be verified, pairing response information is generated according to the pairing request information, and the pairing response information is sent to the pairing device;
specifically, after the visible light transmitting unit transmits the pairing request information, the visible light receiving device may receive the pairing request information and verify the pairing request information, and if the pairing request information passes the verification, the visible light receiving device generates pairing response information according to the pairing request information and then transmits the pairing response information to the pairing device. The pairing response information can be sent in a wired connection mode or in a wireless mode such as WIFI, visible light and the like. The pairing response information may include a model number of the visible light receiving apparatus, an acknowledged modem mode, and an encryption password.
S303, the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, and transmits the pairing operation information to a display unit for display;
specifically, the pairing device may receive the pairing response information, parse the pairing response information according to a pre-stored pairing operation comparison table, and generate pairing operation information, where the pairing operation information is transmitted to a display unit for display. The pairing operation comparison table comprises preset information and input operations which are corresponding to the information and can be identified by the unidirectional visible light transmitting device, and the pairing response information can be analyzed according to the preset information to obtain a series of input operations corresponding to the pairing response information, namely the pairing operation information. For example, the input unit of the unidirectional visible light transmitting device adopts a single key, the preset information is an arabic number 1, the input operation corresponding to the preset information is a short press of the key, the preset information is an arabic number 2, and the input operation corresponding to the preset information is a short press of the key.
S304, the unidirectional visible light transmitting device realizes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit and input by the input unit.
Specifically, after the pairing operation information is displayed on the display unit, an operator can input the pairing operation information through the input unit according to the pairing operation information, the unidirectional visible light transmitting device recognizes the pairing operation information to obtain pairing response information, obtains pairing verification information according to the pairing response information, then transmits the pairing verification information to the visible light transmitting unit, the visible light transmitting unit transmits the pairing verification information, and the visible light receiving device receives the pairing verification information and verifies the pairing verification information, so that after verification is passed, pairing of the unidirectional visible light transmitting device and the visible light receiving device is achieved.
According to the pairing method for the visible light communication equipment, the unidirectional visible light transmitting device is in visible light communication connection with the visible light receiving device, the visible light receiving device is in communication connection with the pairing device, the unidirectional visible light transmitting device transmits pairing request information to the visible light receiving device, after the visible light receiving device verifies that the pairing request information is passed, pairing response information is transmitted to the pairing device, the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, the pairing operation information is displayed through the display unit of the pairing operation information, and the unidirectional visible light transmitting device completes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit, so that the cost of unidirectional equipment is saved.
Fig. 4 is a flow chart of a pairing method of a visible light communication device according to another embodiment of the present invention, as shown in fig. 4, further, on the basis of the foregoing embodiments, the pairing between the unidirectional visible light transmitting device and the visible light receiving device according to the pairing operation information displayed by the display unit and input by the input unit includes:
s3041, the input unit inputs the pairing operation information displayed by the display unit;
specifically, after the pairing operation information is displayed on the display unit, an operator may input the pairing operation information through the input unit according to the pairing operation information.
S3042, after the input unit finishes inputting the pairing operation information, the visible light transmitting unit transmits pairing verification information;
specifically, after the input unit finishes inputting the pairing operation information, the unidirectional visible light transmitting device recognizes the pairing operation information to obtain the pairing response information, obtains the pairing verification information according to the pairing response information, and then transmits the pairing verification information to the visible light transmitting unit, wherein the visible light transmitting unit transmits the pairing verification information. The pairing verification information can comprise the model number of the visible light receiving device, the confirmed modulation and demodulation mode and password information.
S3043, if the visible light receiving device judges that the pairing verification information passes verification, sending pairing success information to the pairing device;
specifically, the visible light receiving device may receive the pairing verification information, then verify the pairing verification information, if the pairing verification information is consistent with the pairing response information, that is, the pairing information is identical with the corresponding information included in the pairing response information, the pairing verification information is verified, and then the visible light receiving device sends pairing success information to the pairing device. For example, the pairing response information includes the same model number and modem mode of the visible light receiving device as those included in the pairing information, and the pairing information is verified.
S3044, the pairing device prompts successful pairing according to the pairing success information.
Specifically, the pairing device receives the pairing success information, then transmits the pairing success information to the display unit for display, and prompts the operator that the unidirectional visible light transmitting device and the visible light receiving device are successfully paired.
On the basis of the above embodiments, the pairing method of the visible light communication device further includes:
when the input unit inputs the pairing operation information displayed by the display unit, the visible light transmitting unit transmits corresponding pairing operation visible light information;
and the pairing device receives the pairing operation visible light information, and prompts correct input of the pairing operation information if judging that the pairing operation visible light information is consistent with the pairing operation information.
Specifically, when the operator displays the pairing operation information according to the display unit and inputs the pairing operation information through the input unit, the unidirectional visible light transmitting device generates corresponding pairing operation visible light information according to the input pairing operation information and sends the pairing operation visible light information through the visible light transmitting unit, the pairing device receives the pairing operation visible light information through a camera, the camera transmits the pairing operation visible light information to an optical processing unit for processing, the processed pairing operation visible light information is transmitted to a central processing unit of the pairing device, the central processing unit compares the processed pairing operation visible light information with the generated pairing operation information, and if the processed pairing operation visible light information is identical to the pairing operation information, the pairing device displays correct prompt information through the display unit and prompts the operator to input the correct pairing operation information through the input unit.
According to the pairing method for the visible light communication equipment, provided by the embodiment of the invention, the pairing operation information input by the input unit is verified, so that errors in the process of inputting the pairing operation information can be timely found, and the accuracy of inputting the pairing operation information is improved.
The specific flow of the method embodiment of the present invention may refer to the description of each system embodiment, and will not be repeated here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The visible light communication equipment pairing system is characterized by comprising a unidirectional visible light transmitting device, a visible light receiving device and a pairing device, wherein:
the unidirectional visible light transmitting device comprises an input unit and a visible light transmitting unit, the visible light receiving device comprises a visible light receiving unit, the pairing device comprises a display unit, the unidirectional visible light transmitting device is in visible light communication connection with the visible light receiving device, and the visible light receiving device is in communication connection with the pairing device;
the input unit is used for starting pairing operation, the unidirectional visible light transmitting device transmits pairing request information through the visible light transmitting unit, the visible light receiving device receives the pairing request information through the visible light receiving unit and transmits pairing response information to the pairing device after the pairing request information passes verification, the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, the pairing operation information is displayed through the display unit, and the unidirectional visible light transmitting device realizes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit and input by the input unit.
2. The system according to claim 1, wherein the pairing device comprises a receiving unit and a central processing unit, the central processing unit is respectively connected with the receiving unit and the display unit, the receiving unit receives the pairing response information, and the central processing unit generates the pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table and sends the pairing operation information to the display unit for display.
3. The system according to claim 2, wherein the pairing device further comprises a camera and an optical processing unit, the camera is connected with the optical processing unit, the optical processing unit is connected with the central processing unit, when the pairing operation information is input by the input unit, the visible light transmitting unit transmits pairing operation visible light information corresponding to the pairing operation information, the camera receives the pairing operation visible light information, the pairing operation visible light information is transmitted to the central processing unit after being processed by the optical processing unit, and the central processing unit verifies the pairing operation information input by the input unit according to the pairing operation information and the processed pairing operation visible light information.
4. The system according to claim 1, wherein the unidirectional visible light transmitting device includes a storage unit and a first processing unit, the first processing unit is respectively connected to the input unit, the storage unit, and the visible light transmitting unit, the first processing unit is configured to obtain the pairing request information from the storage unit after the input unit starts a pairing operation, and transmit the pairing request information to the visible light transmitting unit, and the storage unit is configured to store the pairing request information.
5. The system of claim 1, wherein the input unit comprises a key or a touch screen.
6. The system of claim 1, wherein the input unit comprises a serial port.
7. The system according to any one of claims 1 to 6, wherein the visible light receiving device includes a second processing unit and a transmitting unit, the second processing unit being connected to the visible light receiving unit and the transmitting unit, respectively, the second processing unit being configured to verify the pairing request information and generate the pairing response information according to the pairing request information after the verification is passed, the transmitting unit being configured to transmit the pairing response information to the pairing device.
8. A method for pairing visible light communication devices, comprising:
after the input unit of the unidirectional visible light transmitting device starts pairing operation, the visible light transmitting unit of the unidirectional visible light transmitting device transmits pairing request information;
the visible light receiving device receives the pairing request information, and if the pairing request information is judged to be verified, pairing response information is generated according to the pairing request information and is sent to the pairing device;
the pairing device generates pairing operation information according to the pairing response information and a pre-stored pairing operation comparison table, and transmits the pairing operation information to a display unit for display;
the unidirectional visible light transmitting device realizes pairing with the visible light receiving device according to the pairing operation information displayed by the display unit and input by the input unit.
9. The method according to claim 8, wherein the unidirectional visible light transmitting device performing pairing with the visible light receiving device according to the pairing operation information displayed by the display unit input by the input unit includes:
the input unit inputs the pairing operation information displayed by the display unit;
after the input unit finishes inputting the pairing operation information, the visible light transmitting unit transmits pairing verification information;
if the visible light receiving device judges that the pairing verification information passes verification, the visible light receiving device sends pairing success information to the pairing device;
and the pairing device prompts successful pairing according to the pairing success information.
10. The method as recited in claim 9, further comprising:
when the input unit inputs the pairing operation information displayed by the display unit, the visible light transmitting unit transmits corresponding pairing operation visible light information;
and the pairing device receives the pairing operation visible light information, and prompts correct input of the pairing operation information if judging that the pairing operation visible light information is consistent with the pairing operation information.
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| EP2822285B1 (en) * | 2013-07-04 | 2017-08-30 | Nagravision S.A. | Pairing devices through distinct networks |
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