CN113507322B - Wisdom lighting system of family based on visible light communication - Google Patents
Wisdom lighting system of family based on visible light communication Download PDFInfo
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- CN113507322B CN113507322B CN202110772945.5A CN202110772945A CN113507322B CN 113507322 B CN113507322 B CN 113507322B CN 202110772945 A CN202110772945 A CN 202110772945A CN 113507322 B CN113507322 B CN 113507322B
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- visible light
- relay
- standby
- 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
- H04B10/116—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
- H04B10/29—Repeaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a smart home lighting system based on visible light communication, which comprises: the first visible light communication device, the second visible light communication device and the relay device. The transfer equipment comprises a transfer platform, a first standby visible light transfer device, a first visible light transfer device, a second visible light transfer device, a third visible light transfer device, a fourth visible light transfer device, a second standby visible light transfer device and a processing unit, wherein the first standby visible light transfer device, the first visible light transfer device, the second visible light transfer device, the third visible light transfer device, the fourth visible light transfer device, the second standby visible light transfer device and the processing unit are sequentially arranged on the periphery of the transfer platform. The processing unit is further configured to control the first standby visible light relay and/or the second standby visible light relay to operate when external light intensity affects signals of the first visible light communication device and the second visible light communication device, so that the signal intensities of the first visible light communication device and the second visible light communication device received in the relay device are substantially equal to each other.
Description
Technical Field
The invention relates to the technical field of visible light communication, in particular to a smart home lighting system based on visible light communication.
Background
The visible light communication technology is used for transmitting information by utilizing high-speed bright and dark flashing signals which are sent by fluorescent lamps or light emitting diodes and the like and cannot be seen by naked eyes, and provides access to an unauthorized frequency spectrum of hundreds of THz, immunity to electromagnetic interference and mutual noninterference with a Radio Frequency (RF) system; the system made by the technology can realize seamless transmission of the network between the lighting points, and when the system is applied to an office lighting system, the network connection can be transmitted through the lighting points without interruption when a user moves in an office, so that the system has wide development prospect.
However, the signal transmitted by optical communication between the visible light communication devices has a problem that the signal cannot pass through obstacles such as walls. In the prior art, a visible light transceiver is arranged between visible light communication devices, so that the problem that barriers such as walls exist between the visible light communication devices for isolation is solved.
However, in practical use, other external ambient light may generate strong background interference on the optical signal of the LED, so that the identification degree of the optical signal is reduced, the signal received by the visible light transceiver of the forwarding device is weakened, and even visible light communication cannot be realized, thereby affecting normal communication and user experience.
Disclosure of Invention
The invention provides a smart home lighting system based on visible light communication and a use method thereof, which can effectively solve the problems.
The invention is realized by the following steps:
a smart home lighting system based on visible light communication, comprising:
a first visible light communication device and a second visible light communication device;
the relay device is used for establishing communication connection between the first visible light communication device and the second visible light communication device when the communication between the first visible light communication device and the second visible light communication device is blocked;
the transfer equipment comprises a transfer platform, a first standby visible light transfer device, a first visible light transfer device, a second visible light transfer device, a third visible light transfer device, a fourth visible light transfer device, a second standby visible light transfer device and a processing unit, wherein the first standby visible light transfer device, the first visible light transfer device, the second visible light transfer device, the third visible light transfer device, the fourth visible light transfer device, the second standby visible light transfer device and the processing unit are sequentially arranged on the periphery of the transfer platform; the processing unit is configured to configure the same or different number of repeaters for the first visible light communication device and the second visible light communication device according to the field of view of each repeater, so that the signal intensities of the first visible light communication device and the second visible light communication device received by the repeaters are substantially equal; the processing unit is further configured to control the first standby visible light relay and/or the second standby visible light relay to operate when external light intensity affects signals of the first visible light communication device and the second visible light communication device, so that the signal intensities of the first visible light communication device and the second visible light communication device received in the relay device are substantially equal to each other.
The beneficial effects of the invention are: according to the intelligent household lighting system based on visible light communication, when the external light intensity is too strong, the first standby visible light relay and/or the second standby visible light relay are controlled to work, so that the signal intensities of the first visible light communication device and the second visible light communication device received by the relay device are basically equal, and the problems that: because outside light intensity increases, the identification degree of optical signals is reduced, the received signals of the visible light transceiver of the forwarding device become weak, and even the visible light communication cannot be realized, so that the user experience degree is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a smart home lighting system based on visible light communication according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a smart home lighting system based on visible light communication according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated is indicative. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 2, a smart home lighting system based on visible light communication includes a first visible light communication device 11 and a second visible light communication device 12;
the relay device 13 is a device having a visible light transceiving function, and is configured to establish a communication connection between the first visible light communication device 11 and the second visible light communication device 12 when communication between the first visible light communication device 11 and the second visible light communication device 12 is blocked; i.e. the relay device 13 acts as a relay between the two communicating parties.
The relay device 13 includes a relay station 130, and a first standby visible light relay 136, a first visible light relay 131, a second visible light relay 132, a third visible light relay 133, a fourth visible light relay 134, a second standby visible light relay 137, and a processing unit 135 sequentially disposed around the relay station 130. Referring to fig. 1, the processing unit 135 is configured to configure the same or different number of repeaters for the first visible light communication device 11 and the second visible light communication device 12 according to the visual field of each repeater, so that the signal intensities of the first visible light communication device 11 and the second visible light communication device 12 received by the repeater 13 are substantially equal. In one embodiment, the processing unit 135 is configured to configure the first vlc device 11 and the second vlc device 12 with the same number of repeaters according to the view of each repeater.
Referring to fig. 2 together, the processing unit 135 is further configured to control the first standby visible light relay 136 and/or the second standby visible light relay 137 to operate when the intensity of the external light is too strong, so that the intensities of the signals received by the relay device 13 from the first visible light communication device 11 and the second visible light communication device 12 are lower than the communication standard, so that the intensities of the signals received by the relay device 13 from the first visible light communication device 11 and the second visible light communication device 12 are substantially equal. The communication standard may be set according to different requirements, and is not limited herein.
It is to be understood that, since the same number of repeaters are generally configured at the time of initial configuration, the signal strengths of the first visible light communication device 11 and the second visible light communication device 12 are substantially equal. When the external light intensity increases, the signal of the first visible light communication device 11 may decrease, and therefore, the processing unit 135 may determine the signal intensity between the signal intensities of the first visible light communication device 11 and the second visible light communication device 12 to configure the starting standby relay without additionally providing a light intensity sensor.
In other embodiments, the standby translator and the always-on translator may be interchanged in real-time by the processing unit 135. Specifically, the processing unit 135 further obtains the service time of each relay, defines the service time as a standby relay, and determines the service time as a normally open relay, so as to improve the service life of the whole relay.
As a further improvement, the processing unit 135 is further configured to control the first standby visible light relay 136 or the second standby visible light relay 137 to operate to make the signal intensities received by the relay device 13 of the first visible light communication device 11 and the second visible light communication device 12 substantially equal when the external light intensity is too strong and the difference between the signal intensities received by the relay device 13 of the first visible light communication device 11 and the second visible light communication device 12 is greater than a first threshold value. Specifically, the signal intensities of the first visible light communication device 11 and the second visible light communication device 12 are defined as a and B, respectively, where the first threshold is defined as: max (a, B)/min (a, B) ≧ 1.5, controlling the first standby visible light relay 136 or the second standby visible light relay 137 to operate, so that the signal intensities of the first visible light communication device 11 and the second visible light communication device 12 received in the relay device 13 are substantially equal.
As a further improvement, the central angle formed by the first standby visible light relay 136, the first visible light relay 131, the second visible light relay 132, the third visible light relay 133, the fourth visible light relay 134, and the second standby visible light relay 137 is 120 ° to 150 °. In one embodiment, the size of the central angle formed by the first standby visible light relay 136 and the second standby visible light relay 137 is about 130 °.
As a further improvement, a central angle formed by the first standby visible light relay 136 and the first visible light relay 131, and a central angle formed by the fourth visible light relay 134 and the second standby visible light relay 137 are both defined as a; a central angle formed by two adjacent ones of the first visible light relay 131, the second visible light relay 132, the third visible light relay 133, and the fourth visible light relay 134 is defined as B, where a < B. It will be appreciated that by placing the standby repeater close to the normally open repeater, maximum light intensity can be achieved. As a further improvement, the size of A is 5-10 degrees. In one embodiment, a is about 5 °. The size of B is 40 °.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A smart home lighting system based on visible light communication, comprising:
a first visible light communication device and a second visible light communication device;
the relay equipment is used for establishing communication connection between the first visible light communication equipment and the second visible light communication equipment when the communication between the first visible light communication equipment and the second visible light communication equipment is blocked;
the transfer equipment comprises a transfer platform, a first standby visible light transfer device, a first visible light transfer device, a second visible light transfer device, a third visible light transfer device, a fourth visible light transfer device, a second standby visible light transfer device and a processing unit, wherein the first standby visible light transfer device, the first visible light transfer device, the second visible light transfer device, the third visible light transfer device, the fourth visible light transfer device, the second standby visible light transfer device and the processing unit are sequentially arranged on the periphery of the transfer platform; the processing unit is configured to configure the same or different number of repeaters for the first visible light communication device and the second visible light communication device according to the field of view of each repeater, so that the signal intensities of the first visible light communication device and the second visible light communication device received in the repeaters are substantially equal; the processing unit is further used for controlling the first standby visible light relay and/or the second standby visible light relay to work when the external light intensity makes the signal intensity of the first visible light communication device and the second visible light communication device lower than the communication standard, so that the signal intensity of the first visible light communication device and the signal intensity of the second visible light communication device received in the relay device are basically equal,
the processing unit is further configured to, when the external light intensity is too strong, make a difference between signal intensities of the first visible light communication device and the second visible light communication device received in the relay device be greater than a first threshold, control the first standby visible light relay or the second standby visible light relay to operate, so that the signal intensities of the first visible light communication device and the second visible light communication device received in the relay device are substantially equal.
2. The intelligent home lighting system based on visible light communication as claimed in claim 1, wherein the signal strength of the first visible light communication device and the second visible light communication device are defined as a and B, respectively, wherein the first threshold is defined as: and when max (a, B)/min (a, B) ≧ 1.5, controlling the first standby visible light relay or the second standby visible light relay to work, so that the signal intensities of the first visible light communication device and the second visible light communication device received by the relay device are substantially equal.
3. The visible light communication-based smart home lighting system as claimed in claim 1, wherein a central angle formed by the first standby visible light relay, the first visible light relay, the second visible light relay, the third visible light relay, the fourth visible light relay, and the second standby visible light relay is 120 ° to 150 °.
4. The intelligent home lighting system based on visible light communication of claim 1, wherein a central angle formed by the first standby visible light relay and the first visible light relay, and a central angle formed by the fourth visible light relay and the second standby visible light relay are both defined as a; and B is defined as a central angle formed by two adjacent repeaters of the first visible light repeater, the second visible light repeater, the third visible light repeater and the fourth visible light repeater, wherein A < B.
5. The intelligent home lighting system according to claim 1, wherein the processing unit further obtains the usage duration of each relay, and defines the longer usage duration as a standby relay and the shorter usage duration as a normally open relay, thereby improving the overall service life.
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| CN202110772945.5A CN113507322B (en) | 2021-07-08 | 2021-07-08 | Wisdom lighting system of family based on visible light communication |
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| CN202110772945.5A CN113507322B (en) | 2021-07-08 | 2021-07-08 | Wisdom lighting system of family based on visible light communication |
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| CN113507322B true CN113507322B (en) | 2022-10-14 |
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| CN101938310A (en) * | 2010-07-21 | 2011-01-05 | 中国科学院半导体研究所 | Visible-light communication control system and implement method thereof |
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| CN106888056A (en) * | 2017-03-29 | 2017-06-23 | 西安易朴通讯技术有限公司 | The power regulating method and device of visible light communication |
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