WO2009143770A1

WO2009143770A1 - Lighting system

Info

Publication number: WO2009143770A1
Application number: PCT/CN2009/072008
Authority: WO
Inventors: 林惠忠
Original assignee: 深圳市宏啟光电有限公司
Priority date: 2008-05-26
Filing date: 2009-05-26
Publication date: 2009-12-03
Also published as: CN201206791Y

Abstract

A lighting system can be used for illumination. The lighting system includes a controller and a light link formed by at least two lights connected in series. The said controller includes two signal output channels which are connected to the head and the end of the light link respectively to form a loop. The said controller alternatively sends signals to the head and the end of the said light link by the two signal output channels.

Description

Instruction manual

Technical field

[1] The invention belongs to the field of lighting, and in particular relates to a lighting system.

Background technique

[2] Currently, LEDs (Light Emitting)

Diode, LED) and other lighting control systems mostly use serial connection, as shown in Figure 1, where controller 10 is usually a microcontroller (Micro controller)

Unit, MCU), Field Programmable Gate Array Unit

Array, FPGA), Complex Programmable Logic (Complex Programmable Logic

Device, CPLD), etc., the controller 10 is configured to generate a driving signal for driving the luminaire, and the driving signal sequentially passes through the luminaire 11, the luminaire 12, the luminaire 13 to the luminaire 14, and the driving circuit in each luminaire controls the corresponding display according to the received driving signal. The state of the lamp, where the length of the luminaire series is determined by the system or field wiring conditions, usually between tens and hundreds. The way in which such lamps are connected in series is likely to cause some or even the entire system to be defective in the event of failure of individual lamps, so that the system is not reliable enough. If the lamp 13 fails, only the lamps before the lamp 13 can normally emit light, if the lamp 11 fails , then the entire system 公开 the disclosure of the invention

technical problem

[3] The object of the present invention is to provide a lighting system, which aims to solve the problem that the current lighting system is connected in such a way that individual lamps fail, which may easily lead to the collapse of some or even the entire system, so that the system is not reliable enough.

Technical solution

[4] The present invention is achieved by a lighting system including a controller, and a luminaire link formed by serially connecting two or more luminaires, the controller including two sets of signal output channels, the two sets of signals The output channels are respectively connected to the head end and the tail end of the luminaire link to form a loop, and the controller alternately sends driving signals to the head end and the tail end of the luminaire link through two sets of signal output channels. [5] Another object of the present invention is to provide a lighting system, including a main controller, the lighting system further comprising:

a distributor link formed by a plurality of distributors serially connected, the distributors each comprising two sets of signal output channels that alternately transmit drive signals, the splitter links being coupled to signal output channels of the main controller

And a plurality of luminaire links formed by serially connecting two or more luminaires, wherein the head end and the tail end of the luminaire link are respectively connected to the two sets of signal output channels of the corresponding distributor to form a ring road.

[6] Another object of the present invention is to provide a lighting system including a main controller, the main controller comprising two sets of signal output channels for alternately transmitting driving signals; the lighting system further comprising: a plurality of distributors a splitter link formed by a serial connection, wherein a head end and a tail end of the splitter link are respectively connected to two sets of signal output channels of the main controller to form a loop;

A plurality of luminaire links formed by serially connecting two or more luminaires, the luminaire links being coupled to respective signal output channels of the distributor.

Beneficial effect

[7] In the lighting system provided by the invention, the controller, the main controller and the distributor can both comprise two sets of signal output channels, and a loop connection is formed between the controller and the lamp, and a main controller and the distributor are formed. The loop connection alternately sends driving signals to the luminaire through two sets of signal output channels to realize bidirectional transmission of the driving signals, which can improve the reliability of the system luminaires and reduce the problems of most systems or the entire system caused by single luminaire failure.

DRAWINGS

[8] FIG. 1 is a schematic diagram of a serial connection manner of a lamp in a lighting system provided by the prior art;

2 is a structural schematic diagram of a lighting system according to a first embodiment of the present invention;

[10] FIG. 3a is a control schematic diagram of a controller according to a first embodiment of the present invention for transmitting a data signal and a chirp signal to a lamp of a lighting system through a first group of signal output channels;

[11] FIG. 3b is a control schematic diagram of the controller according to the first embodiment of the present invention for transmitting a data signal and a chirp signal to the internal lighting of the lighting system through the second group of signal output channels;

[12] FIG. 4 is a sequence diagram of a data signal and a chirp signal transmitted by each group of signal output channels of the controller according to the first embodiment of the present invention;

[13] FIG. 5 is a structural schematic diagram of a lighting system according to a second embodiment of the present invention; 6 is a structural schematic diagram of a lighting system according to a third embodiment of the present invention;

FIG. 7 is a structural schematic diagram of a lighting system according to a fourth embodiment of the present invention.

Embodiments of the invention

[16] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[17] In the following embodiment of the present invention, the lighting system uses a four-wire scheme, and the controller forms a loop connection with the luminaire through two sets of signal output channels, and alternately sends driving signals to the luminaire through two sets of signal output channels to realize driving signals. Two-way transmission.

FIG. 2 is a structural schematic diagram of a lighting system according to a first embodiment of the present invention. For convenience of description, only parts related to the present embodiment are shown. Referring to FIG. 2, a luminaire link is connected between the first group of signal output channels 1 and the second group of signal output channels 2 of the controller 20, and the luminaire links include serially connected lamps 21, 22, 23 to lamps nl , n, that is, at least two luminaires; the connection between the lamps in the luminaire link may be a wired connection or a wireless connection, and the controller 20 forms a loop connection with the luminaire link. The controller 20 alternately sends driving signals to the head end and the tail end of the luminaire link through the first group of signal output channels 1 and the second group of signal output channels 2, so that the driving circuit of each luminaire is in the case where the entire loop is intact. The same data can be received twice. If there is a fault in the loop, such as the luminaire 22, the controller 20 sends the drive signal alternately through the two sets of signal output channels 1, 2, except for the luminaire 22. All other luminaire drive circuits can receive a complete data; if two luminaires in the loop fail, such as luminaire 21 and luminaire 23, then controller 20 alternately transmits through two sets of signal output channels 1, 2 After driving the signal, the driving circuit of all the lamps except the lamps 21, 22, 23 can receive a complete data, that is, only the two lamps that have failed and the lamps between them are not bright, so the present invention The lighting system provided by the first embodiment can improve the reliability of the system luminaire and reduce the majority of the system or the entire system caused by the failure of a single luminaire. question.

[19] It should be understood that the manner in which the controller 20 alternately transmits data through the two sets of signal output channels 1, 2 may be reversed once in the forward direction, twice in the forward direction or twice in the reverse direction, or other transmission modes. Just ensure that the luminaire receives the same data within the two channel data transmission period.

[20] The lighting system provided by the first embodiment of the present invention uses positive and negative power signal lines, lamp control data lines, The four-wire control mode of the cuckoo clock signal line controls the lamp in the system, wherein the lamp further comprises a display circuit and a driving circuit for controlling the display lamp to be turned on or off, and the driving circuit is connected with the power supply through the positive and negative power signal lines, and the display lamp can be It is a light emitting diode (LED) or the like. 3a and 3b respectively show the control principle of the controller 20 for transmitting the data signal and the chirp signal to the internal lamps of the system through the first group of signal output channels 1 and the second group of signal output channels 2, wherein CLK is The standard chirp signal of the internal control position of the lamp is sent by the controller 20 to the driving circuit of each lamp through the cuckoo clock signal line; Data is the data signal for controlling the state of the display lamp by the internal driving circuit of the lamp, and the controller 20 controls the data through the lamp. The line is sent to the drive circuit of each luminaire. The data signals Data in Figures 3a and 3b are respectively sent by the controller 20 to the luminaires in the system loop through the two sets of signal output channels 1, 2, and thus in opposite directions.

[21] FIG. 4 shows the sequence of the data signal and the chirp signal transmitted by each set of signal output channels of the controller 20, wherein the signal period includes a frame data period and a synchronization period. Each pixel period can be 24 bits, 30 bits, 36 bits, 40 bits or other digits. The frame data period is customized by the user according to actual needs or signal distortion conditions; the chirp clock frequency can be customized by the user or according to signal distortion. The condition is automatically adjusted by the system, and the adjustment range is 100KHZ~3MHZ. The system synchronously illuminates the luminaire's flag by the controller 20 through the 吋 clock signal line, CLK continues to be low or high (indicated by a continuous low level in Figure 4), then the luminaire's drive circuit latches the current periodic pixel The data is controlled to display the synchronous display of the display light (specifically determined by the current latched data), and the data channel in the luminaire is activated in the opposite direction, wherein the synchronization period must be greater than a certain value to meet the needs of system adjustment, after the synchronous display period, The direction in which the controller 20 sends the data signal changes, as shown in detail in Figures 3a and 3b, and will not be described here.

[22] When the system needs to control a large number of lamps, it is also possible to connect multiple subsystem units through a distributor, which is uniformly controlled by the main controller, and the entire lighting system is flexible in layout. Fig. 5 is a structural schematic view showing a lighting system according to a second embodiment of the present invention, and only the portions related to the present embodiment are also shown. Referring to FIG. 5, the main controller 30 transmits the data signal and the chirp signal of the luminaire in the system to the distributor link serially connected to the signal output channel through the luminaire control data line and the cesium signal line, respectively, the distributor chain The road includes distributors 31, 32, 33, 34, etc., and a luminaire link is connected between the first group of signal output channels and the second group of signal output channels of each of the distributors, and the luminaire link is composed of two or more (ie, At least two of the luminaires are connected in series so that a loop connection is formed between the distributor and the luminaire link, and finally the data is sent by the distributor to the luminaire that forms a loop connection with the distributor, thereby improving the serial connection. The reliability of the luminaire reduces the problem of most systems or the entire system caused by the failure of a single luminaire. The principle is the same as that of the first embodiment, and will not be mentioned here.

6 is a structural schematic diagram of a lighting system according to a third embodiment of the present invention. Unlike the second embodiment, the main controller has two sets of signal output channels, and two sets of signals from the main controller. The output channel forms a loop connection with the distributor link to avoid most systems or the entire system being smashed due to the failure of a single distributor. The principle is the same as above, and will not be mentioned here.

FIG. 7 is a schematic structural diagram of a lighting system according to a fourth embodiment of the present invention. In this embodiment, both the main controller and the distributor have two sets of signal output channels, and two sets of signal outputs of the main controller. The channel and the distributor link form a loop connection, and the two sets of signal output channels of the distributor form a loop connection with the lamp link, which combines the features of the second and third embodiments, and further improves the reliability of the system. .

[25] It should be understood that the above-mentioned four-wire scheme describes the control principle of the lighting system provided by the embodiment of the present invention, and the loop structure between the controller and the lamp, and the loop between the main controller and the distributor. The structure is applied to other types of wire control systems, such as the five-wire control system using DM413 drive circuit to control the luminaire, using shift registers such as 74HC595, ZQL9712, etc., or adding constant current functions such as MBI 5026 to control the scheme. The six-wire control system of the luminaire, and the three-wire control system that modulates the data signal and the cesium clock signal into a group of signals, etc., are not repeated here.

[26] In summary, in the lighting system provided by the embodiment of the present invention, the controller, the main controller, and the distributor may each comprise two sets of signal output channels, and a loop connection and main control are formed between the controller and the lamp. A loop connection is formed between the device and the distributor, and the driving signals are alternately sent to the luminaire through the two sets of signal output channels to realize the bidirectional transmission of the driving signals, thereby improving the reliability of the system luminaire and reducing most of the systems or the whole caused by the failure of the single luminaire. The problem with the system.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the present invention. Within the scope of protection of the invention.

Claims

Claim

[1] A lighting system comprising a controller, and a luminaire link formed by serially connecting two or more luminaires

The controller includes two sets of signal output channels, and the two sets of signal output channels are respectively connected to the head end and the tail end of the luminaire link to form a loop, and the controller passes through two groups. The signal output channels alternately send drive signals to the head and tail of the luminaire link.

[2] The lighting system according to claim 1, wherein the controller and the luminaire link form a loop connection through a luminaire control data line and a cesium signal line; each luminaire in the luminaire link The device is a wired connection or a wireless connection; the luminaire includes a display lamp and a driving circuit for controlling the display lamp, and the driving circuit is connected to the power supply through the positive and negative power signal lines.

[3] The lighting system of claim 2, wherein the display light is a light emitting diode.

[4] A lighting system, comprising a main controller, wherein the lighting system further comprises: a distributor link formed by serial connection of a plurality of distributors, the distributors each comprising two sets of alternate transmission drivers a signal output channel of the signal, the splitter link is connected to a signal output channel of the main controller; and a plurality of luminaire links formed by serially connecting two or more luminaires, the head end of the luminaire link and The tail ends are respectively connected to the two sets of signal output channels of the corresponding distributors to form a loop.

[5] The lighting system of claim 4, wherein the main controller comprises two sets of signal output channels that alternately transmit driving signals, and the head end and the tail end of the splitter link are respectively The two sets of signal output channels of the main controller are connected one by one to form a loop.

[6] The lighting system according to claim 5, wherein the main controller and the distributor link form a loop connection through a lamp control data line and a chime signal line; the distributor and corresponding The luminaire link forms a loop connection through the luminaire control data line and the squall clock signal line; each of the luminaire links is a wired connection or a wireless connection; the luminaire includes a display lamp and a drive circuit for controlling the display lamp The driving circuit is connected to the power supply through the positive and negative power signal lines.

[7] The lighting system of claim 6, wherein the display light is a light emitting diode.

[8] A lighting system, comprising a main controller, wherein the main controller comprises two sets of signal output channels that alternately transmit driving signals; the lighting system further comprises: serially connected by a plurality of distributors a splitter link, the head end and the tail end of the splitter link are respectively associated with the main control Two sets of signal output channels are connected one by one to form a loop; and a plurality of luminaire links formed by serially connecting two or more luminaires, the luminaire links being connected to corresponding signal output channels of the distributor .

[9] The lighting system according to claim 8, wherein the main controller and the distributor link form a loop connection through a lamp control data line and a chime signal line; the dispenser and corresponding The luminaire link is connected by a luminaire control data line and a squall clock signal line; each luminaire in the luminaire link is a wired connection or a wireless connection; the luminaire includes a display lamp and a driving circuit for controlling the display lamp, The driving circuit is connected to the power supply through the positive and negative power signal lines.

[10] The lighting system of claim 9, wherein the display light is a light emitting diode.