阅读说明：本技术 一种基于可见光通信的办公室照明系统 (Office lighting system based on visible light communication ) 是由 梁少荣 于 2021-07-08 设计创作，主要内容包括：本发明公开了一种基于可见光通信的办公室照明系统,包括：第一可见光通信设备和第二可见光通信设备；中转设备,用于当第一可见光通信设备和第二可见光通信设备之间通信受阻时,建立第一可见光通信设备和第二可见光通信设备之间通信连接；其中,中转设备包括中转台以及顺序设置于中转台周边的第一可见光中转器、第二可见光中转器、第三可见光中转器、第四可见光中转器以及处理单元。处理单元用于当外界光强影响第一可见光通信设备和第二可见光通信设备的信号时,调整第一可见光通信设备和第二可见光通信设备配置的中转器数量,使中转设备中接收到的第一可见光通信设备和第二可见光通信设备的信号强度基本相等。(The invention discloses an office lighting system based on visible light communication, which comprises: a first visible light communication device and a second visible light communication device; the transfer 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 visible light transfer device, a second visible light transfer device, a third visible light transfer device, a fourth visible light transfer device and a processing unit, wherein the first visible light transfer device, the second visible light transfer device, the third visible light transfer device, the fourth visible light transfer device and the processing unit are sequentially arranged on the periphery of the transfer platform. The processing unit is used for adjusting the number of the repeaters configured on the first visible light communication device and the second visible light communication device when the external light intensity affects the 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 repeater are basically equal.)

1. An office 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 rotatable transfer table, a first visible light transfer device, a second visible light transfer device, a third visible light transfer device, a fourth visible light transfer device and a processing unit, wherein the first visible light transfer device, the second visible light transfer device, the third visible light transfer device, the fourth visible light transfer device and the processing unit are sequentially arranged on the periphery of the transfer table; 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 configured to adjust the number of repeaters configured for the first visible light communication device and the second visible light communication device when the external light intensity affects the 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 repeater are substantially equal.

2. The visible light communication-based office lighting system of claim 1, further comprising a first standby visible light relay and a second standby visible light relay disposed at a periphery of the relay station.

3. The visible-light-communication-based office lighting system of claim 2, wherein 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 are sequentially disposed around the relay center.

4. The visible light communication-based office lighting system according to claim 2, wherein the processing unit is further configured to control the first standby visible light relay and/or the second standby visible light relay to operate so that the signal strengths of the first visible light communication device and the second visible light communication device received by the relay device are substantially equal when the intensity of the external light is too strong and the signal strengths of the first visible light communication device and the second visible light communication device received by the relay device are lower than the communication standard.

5. The visible light communication-based office lighting system according to claim 2, wherein the processing unit is further configured to 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 by the relay device are substantially equal when the intensity of the external light is too strong and the difference between the signal intensities of the first visible light communication device and the second visible light communication device received by the relay device is greater than a first threshold value.

6. The visible-light-communication-based office lighting system according to claim 5, wherein the signal strengths 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.

7. The visible-light-communication-based office lighting system according to claim 3, 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 °.

8. The visible-light-communication-based office lighting system of claim 7, wherein a central angle formed by the first alternate visible-light relay and the first visible-light relay, and a central angle formed by the fourth visible-light relay and the second alternate 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.

Technical Field

The invention relates to the technical field of visible light communication, in particular to an office lighting system based on visible light communication.

Background

The visible light communication technology is used for transmitting information by using high-speed bright and dark flashing signals which are sent by fluorescent lamps or light emitting diodes and cannot be seen by naked eyes, and the technology 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 among 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 it cannot pass through an obstacle such as a wall. 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 an office lighting system based on visible light communication and a using method thereof, which can effectively solve the problems.

The invention is realized by the following steps:

an office lighting system based on visible light communication and a using method thereof comprise:

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 visible light transfer device, a second visible light transfer device, a third visible light transfer device, a fourth visible light transfer device and a processing unit, wherein the first visible light transfer device, the second visible light transfer device, the third visible light transfer device, the fourth 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 configured to adjust the number of repeaters configured for the first visible light communication device and the second visible light communication device when the external light intensity affects the 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 repeater are substantially equal.

As a further improvement, the system further comprises a first standby visible light relay and a second standby visible light relay which are arranged at the periphery of the relay platform.

As a further improvement, 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 are sequentially disposed around the relay table.

As a further improvement, 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 the external light intensity is too strong, 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 lower than the communication standard, 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.

As a further improvement, the processing unit is further configured to control the first standby visible light relay or the second standby visible light relay to operate when the external light intensity is too strong, so that the difference between the signal intensities of the first visible light communication device and the second visible light communication device received by the relay device is greater than a first threshold, 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.

As a further improvement, the signal strengths 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.

As a further improvement, the 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 °.

As a further improvement, 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.

As a further improvement, the size of A is 5-10 degrees.

The invention has the beneficial effects that: according to the office lighting system based on visible light communication provided by the invention, when the external light intensity is too strong, the number of the repeaters configured on the first visible light communication device and the second visible light communication device is adjusted, so that the signal intensities of the first visible light communication device and the second visible light communication device received in the repeater are basically equal, and therefore the problems that: the intensity of the external light is increased, so that the identification degree of the optical signal is reduced, the received signal of a visible light transceiver of the forwarding device is weakened, 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 an office lighting system based on visible light communication according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of an office lighting system based on visible light communication according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of an office lighting system based on visible light communication according to another 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 technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the 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 implying any number of technical features indicated. 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 3, a visible light communication-based office lighting system 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 rotatable relay table 130, and a first visible light relay 131, a second visible light relay 132, a third visible light relay 133, a fourth visible light relay 134, and a processing unit 135 sequentially disposed at the periphery of the relay table 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 view 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 in 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. The processing unit 135 is further configured to adjust the number of repeaters configured in the first visible light communication device 11 and the second visible light communication device 12 when the external light intensity affects the signals of the first visible light communication device 11 and the second visible light communication device 12, so that the signal intensities of the first visible light communication device 11 and the second visible light communication device 12 received in the repeater 13 are substantially equal. 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. Referring to fig. 2, when the external light intensity increases, the signal of the first visible light communication device 11 decreases, so that the processing unit 135 can 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 number of repeaters without additionally providing a light intensity sensor.

The structure of the rotatable relay station 130 is not limited as long as rotation can be achieved.

As a further improvement, the system further includes a first standby visible light relay 136 and a second standby visible light relay 137 disposed around the relay station 130. It is to be understood that the standby repeater is enabled only when the processing unit 135 determines that the normally open repeater cannot meet the requirement. In one embodiment, 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 are sequentially disposed at the periphery of the relay station 130. In other embodiments, the standby repeaters and the normally open repeaters may be interchanged in real time by the processing unit 135. Specifically, the processing unit 135 further obtains the service life of each relay, and defines the service life as a standby relay and a normal relay for positioning the service life as a short one, so as to improve the overall service life.

Referring to fig. 3, as a further improvement, 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 to make the signal intensities of the first visible light communication device 11 and the second visible light communication device 12 received by the relay device 13 substantially equal when the external light intensity is too strong and the signal intensities of the first visible light communication device 11 and the second visible light communication device 12 received by the relay device 13 are lower than the communication standard. The communication standard may be set according to different requirements, and is not limited herein.

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 strengths 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: and 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 by 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 can be understood that the standby repeater is close to the normally open repeater, so that the maximum illumination intensity can be obtained by rotating a small angle without influencing the normal use of other repeaters. 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 within the spirit and principle of the present invention should be included in the protection scope of the present invention.