CN209824084U - Lighting system - Google Patents

Abstract

The application relates to the technical field of lighting, in particular to a lighting system. In the lighting system of this application, every group dimming unit is coupled with every group light source, dimming unit includes: the corresponding communication bus is provided with a group of mutually disconnected first connection points and second connection points corresponding to each dimming unit; the first connecting point is coupled with the first signal end through a first cable and used for inputting a signal into the dimming unit; the second connection point is coupled with the second signal end through a second cable and used for outputting the signal of the dimming unit so as to form a structure that each group of dimming units is cascaded with a handle on a communication bus of each group of dimming units; each dimming unit works in a half-duplex mode; each communication bus is used for bidirectional signal transmission between the dimming unit and the control device. The lighting system of this application simple structure realizes the two-way transmission of efficient instruction issue and the information of collecting the unit of adjusting luminance, solves prior art's problem.

Description

Lighting system

Technical Field

The application relates to the technical field of lighting, in particular to a lighting system.

Background

In current lighting systems, lighting devices are coupled to form a network.

In this network, a command needs to be issued to each lighting device, or feedback information needs to be given to each lighting device; as the functions and the number of the lighting devices are increased, the uplink and downlink communication efficiency needs to be considered, and the complexity of the layout of the power cable and the communication cable of the lighting system needs to be considered.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present application aims to provide a lighting system that achieves high communication transmission efficiency through a simple communication coupling structure, and does not have high cable routing complexity, thereby solving the problems of the prior art.

To achieve the above and other related objects, the present application provides a lighting system comprising: at least one set of light sources; at least one group of dimming units; each dimming unit in each group of dimming units is respectively coupled with each light source; the dimming unit includes: a first signal terminal and a second signal terminal; at least one communication bus; each communication bus is coupled with a group of dimming units and is coupled with a control device; each communication bus is provided with a group of mutually disconnected first connection points and second connection points corresponding to each dimming unit; the first connecting point is coupled with the first signal end through a first cable and used for inputting a signal into the dimming unit; the second connection point is coupled with the second signal end through a second cable and used for outputting the signals of the dimming units so as to form a structure that each group of dimming units is cascaded on the communication bus of the dimming unit; each dimming unit works in a half-duplex mode; each communication bus is used for bidirectional signal transmission between the dimming unit and the control device.

In one embodiment, the control apparatus includes: a lighting control gateway device; wherein each lighting control gateway device is coupled to one or more of the communication buses.

In one embodiment, the illumination system includes: a monitoring device coupled to the lighting control gateway apparatus.

In one embodiment, the illumination system includes: monitoring a central terminal; and the plurality of monitoring devices are cascaded and coupled to the monitoring center terminal.

In an embodiment, an environmental sensor is further coupled to the lighting control gateway.

In one embodiment, the first cable and the second cable belong to different cores of the same communication cable.

In one embodiment, the communication bus, the first cable and the second cable are cables conforming to the RS485 communication protocol standard.

In one embodiment, the signal transmitted in each communication bus is transmitted along each dimming unit in cascade.

In one embodiment, the signal includes an addressing instruction; each dimming unit is used for receiving the addressing command from the communication bus through a first signal terminal of the dimming unit, setting the self network address of the dimming unit to be a first address corresponding to the received first addressing command, generating a second addressing command corresponding to a second address generated by adding an offset to the first address, and outputting the second addressing command to the communication bus from a second signal terminal of the dimming unit for transmission to the next dimming unit in the cascade.

In one embodiment, the illumination system includes: and the power line is coupled with each dimming unit to supply power.

In one embodiment, each dimming cell is provided with an independent bus line for communication bus communication, and the internal circuit of each dimming cell communicates with the independent bus line to exchange signals.

As described above, in the lighting system of the present application, in each group of dimming units coupled to each group of light sources, the dimming units include: the corresponding communication bus is provided with a group of mutually disconnected first connection points and second connection points corresponding to each dimming unit; the first connecting point is coupled with the first signal end through a first cable and used for inputting a signal into the dimming unit; the second connection point is coupled with the second signal end through a second cable and used for outputting the signal of the dimming unit so as to form a structure that each group of dimming units is cascaded with a handle on a communication bus of each group of dimming units; each dimming unit works in a half-duplex mode; each communication bus is used for bidirectional signal transmission between the dimming unit and the control device. The lighting system of this application simple structure realizes the two-way transmission of efficient instruction issue and the information of collecting the unit of adjusting luminance, solves prior art's problem.

Drawings

Fig. 1 is a schematic view illustrating a coupling structure between a monitoring device and a lighting device of a lighting system according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram illustrating a coupling structure between the lighting device and the communication bus of the lighting system in the embodiment of the present application.

Fig. 3 is a schematic view of a coupling structure between a monitoring center terminal and a monitoring device of an illumination system according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In view of the various problems in the prior art, the present application can provide a lighting system that can achieve both the two-way transmission efficiency between the lighting device and the control device thereof, and reduce the layout complexity of the cables.

Fig. 1 shows a schematic view of a coupling structure between a monitoring apparatus 104 and a lighting apparatus 101 of a lighting system in an embodiment of the present application.

As shown, the lighting system comprises: lighting devices 101, a communication bus 102, control devices 103 and monitoring apparatus 104.

In the present embodiment, the lighting device 101 is an LED lamp, which is a type of military or civil lamp, for example, a household lamp or a public facility lamp.

The lighting device 101 comprises: the light source and the light adjusting unit coupled with the light source. The dimming unit may be a dimming power supply for dimming a light source, such as an LED light source, by controlling a power supply output, e.g. one or more of on-off, brightness, color temperature, flicker.

As can be seen from the illustration, in the present embodiment, the lighting apparatus 101 is plural and forms a plurality of groups; each set of lighting devices 101 is coupled to a communication bus 102, a plurality of communication buses 102 are coupled to the control device 103, and the control device 103 is coupled to the monitoring apparatus 104. Alternatively, the communication line may be an RS485 bus, and each group of lighting devices 101 operates in a half-duplex mode to perform bidirectional transmission of signals transmitted and received by using a communication bus 102 connected thereto.

In an example, the control device 103 may be a lighting control gateway device, one side of which is coupled to a network of lighting devices 101; and the other side is coupled to an external network such as wired/wireless internet.

Optionally, the lighting control gateway device may receive a control signal sent by a device of an external network, generate a corresponding dimming command, and forward the dimming command to the corresponding lighting device 101 through each communication bus 102 for control.

Optionally, the lighting control gateway device may also be coupled to an environment sensor 105, such as a brightness sensor, a temperature sensor, and the like, and may trigger generation of a dimming instruction according to an electrical signal corresponding to different situations and collected by the environment sensor 105, and send the dimming instruction to the corresponding lighting device 101 for automatic control. Optionally, the lighting control gateway device and the environmental sensor 105 may be connected through an RS485 communication protocol.

Optionally, the lighting control gateway device may further be coupled to an operation panel, and provide an operation component, such as a key, a slide button, and the like, capable of triggering generation of the electrical signal, so as to receive an operation understood by a user, so as to generate a dimming instruction according to the corresponding electrical signal, and send the dimming instruction to the corresponding lighting device 101 for control.

Optionally, the lighting control gateway device may further provide a wireless interface (e.g., an infrared, bluetooth, NFC, RFID, WiFi, or 2G/3G/4G/5G radio frequency transmission interface), establish a wireless communication coupling with a user terminal (e.g., a smart phone, a tablet computer, etc.), to receive the control signal to generate a dimming instruction, and send the dimming instruction to the corresponding lighting device 101 for control.

In an example, the monitoring device 104 may be a device with processing capability and communication capability, preferably an embedded device, which may have, for example, an MCU, a PLC, a SoC, an FPGA, or a CPLD as a processor, and may be provided with some communication interface circuit, such as a wired ethernet card, and coupled with the lighting control gateway device through, for example, an RJ45, an RS485 serial port, a USB interface, and the like.

As shown in fig. 2, a schematic diagram of a coupling structure between the lighting device of the lighting system and the communication bus 203 in the embodiment of the present application is shown.

Only a set of lighting devices and their corresponding local structure to which the communication bus 203 is coupled are shown.

In the present embodiment, a light source 201 and a dimming unit 202 of each lighting device are shown. Each dimming unit 202 is connected to a communication bus 203 for communication and to a power line 206 for power supply; wherein the power line provides alternating current, such as 380V for industrial alternating current, 220V for domestic alternating current, etc.

Specifically, the dimming unit 202 includes: a first signal terminal 221 and a second signal terminal 222.

A group of mutually disconnected first connection points 231 and second connection points 232 corresponding to each dimming unit 202 are arranged in the communication bus 203; the first connection point 231 for coupling with the first signal terminal 221 through the first cable 204 for inputting a signal into the dimming unit 202; the second connection point 232 is coupled to the second signal terminal 222 through the second cable 205 for outputting the signal of the dimming units 202, so as to form a structure in which each group of dimming units 202 is connected to the communication bus 203 by a hand-grip cascade.

Specifically, each dimming unit 202 may be provided with an independent bus line for communication of the communication bus 203, and the internal circuit of each dimming unit 202 communicates with the independent bus line to exchange signals, so that a fault of the internal circuit of the dimming unit 202 does not affect the signal transmission of the communication bus 203.

Alternatively, the separate bus line and the line communicating with the internal circuitry of the dimming unit 202 may be present in a connector coupled or integrated in the dimming unit, which connector is also connected to the communication bus 203. Such as an RS485 connector or the like.

Specifically, when bidirectional communication is performed between the dimming units 202, serial signal transmission is performed between the dimming units 202 in a forward direction or a reverse direction in a stepwise manner.

Optionally, the first cable 204, the second cable 205 and the communication bus 203 may be cables conforming to the RS485 communication protocol standard. For example, the first cable 204, the second cable 205 and the communication may be two-core cables (transmitting RS485 signals A + and B-, respectively).

Optionally, the first cable 204 and the second cable 205 may also be implemented by one communication cable, that is, the first cable 204 and the second cable 205 are different cores belonging to the communication cable, and if the first cable 204 and the second cable 205 are two cores, the communication cable is a four-core cable.

As can be seen from the figure, in the forward signal transmission, a signal (for example, RS485 signal) is input from the first connection point 231 to the first signal terminal 221 of a dimming unit 202, and after being processed, enters the communication bus 203 from the second signal terminal 222 to the second connection point 232 of the dimming unit 202 to continue to be transmitted to the next stage, so that the step-by-step transmission of the subsequent dimming unit 202 can be inferred until the destination is reached.

Based on this, in an embodiment, this stepwise transmission may be utilized to achieve, for example, automatic addressing of the dimming units 202 (i.e., the corresponding luminaires), i.e., assigning network addresses to the luminaires.

Specifically, the control device, i.e. for example a lighting control gateway device, issues an addressing command via the respective communication bus 203, and each dimming unit 202 is configured to receive the addressing command from the communication bus 203 via its first signal terminal 221, set its own network address to a first address corresponding to the received first addressing command, generate a second addressing command corresponding to a second address generated by adding an offset to the first address, and output the second addressing command from its second signal terminal 222 to the communication bus 203 for transmission to the next dimming unit 202 in the cascade.

In an example, the offset may be "1", "2" or other setting values, and the network address of the next-stage dimming unit 202 can be obtained by adding the offset to the network address of the previous-stage dimming unit 202; the second addressing instruction may be information with the calculated network address of the subsequent dimming unit 202 for the subsequent dimming unit 202 to directly set, or may be an instruction to the subsequent dimming unit 202 to calculate its own network address according to its own position in the communication bus 203.

Accordingly, each dimming unit 202 can generate and set a network address for itself by using the received addressing command, and can generate an addressing command for the next dimming unit 202 to generate the network address through the fixed logic processing, thereby realizing automatic addressing of each dimming unit 202 (corresponding to a lighting device).

As shown in fig. 3, a schematic view of a coupling structure between a monitoring center terminal of the lighting system and the monitoring device 302 in the embodiment of the present application is shown. In the present embodiment, the lighting device and the communication bus in the foregoing embodiments are not shown in order to exhibit a local structure.

In this embodiment, the monitoring apparatuses 302 coupled to each control device 301 (for example, the aforementioned lighting intelligent control gateway device) are cascaded with each other and coupled to a monitoring center terminal 303; the monitoring center terminal 303 can monitor the states of the lighting devices, so that the lighting devices can be quickly located when a fault occurs, and the monitoring center terminal can notify a user terminal (such as a smart phone, a tablet computer and the like) coupled (such as a wireless connection) to improve operation and maintenance convenience.

Moreover, the monitoring center terminal 303 can also perform accurate communication on each lighting device autonomously or according to a command of a user; specifically, the precise control of each lighting device may be achieved through a communication manner such as broadcast, multicast, or unicast.

In one example, the monitoring center terminal 303 may be implemented by, for example, a server/server group, a monitoring host, and the like.

It should be noted that, the term "coupled" in the above embodiments means either a direct connection or an indirect connection.

To sum up, in the lighting system of this application, in every group dimming unit that is coupled with every group light source, dimming unit includes: the corresponding communication bus is provided with a group of mutually disconnected first connection points and second connection points corresponding to each dimming unit; the first connecting point is coupled with the first signal end through a first cable and used for inputting a signal into the dimming unit; the second connection point is coupled with the second signal end through a second cable and used for outputting the signal of the dimming unit so as to form a structure that each group of dimming units is cascaded with a handle on a communication bus of each group of dimming units; each dimming unit works in a half-duplex mode; each communication bus is used for bidirectional signal transmission between the dimming unit and the control device. The lighting system of this application simple structure realizes the two-way transmission of efficient instruction issue and the information of collecting the unit of adjusting luminance, solves prior art's problem.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.

Claims (11)

1. An illumination system, comprising:

at least one set of light sources;

at least one group of dimming units; each dimming unit in each group of dimming units is respectively coupled with each light source; the dimming unit includes: a first signal terminal and a second signal terminal;

at least one communication bus; each communication bus is coupled with a group of dimming units and is coupled with a control device; each communication bus is provided with a group of mutually disconnected first connection points and second connection points corresponding to each dimming unit; the first connecting point is coupled with the first signal end through a first cable and used for inputting a signal into the dimming unit; the second connection point is coupled with the second signal end through a second cable and used for outputting the signals of the dimming units so as to form a structure that each group of dimming units is cascaded on the communication bus of the dimming unit;

each dimming unit works in a half-duplex mode; each communication bus is used for bidirectional signal transmission between the dimming unit and the control device.

2. The lighting system, as set forth in claim 1, wherein the control device comprises: a lighting control gateway device; wherein each lighting control gateway device is coupled to one or more of the communication buses.

3. The illumination system of claim 2, comprising: a monitoring device coupled to the lighting control gateway apparatus.

4. The illumination system of claim 3, comprising: monitoring a central terminal; and the plurality of monitoring devices are cascaded and coupled to the monitoring center terminal.

5. The lighting system, as set forth in claim 2, wherein an environmental sensor is further coupled to the lighting control gateway.

6. The lighting system, as set forth in claim 1, wherein the first cable and the second cable belong to different cores of a same communication cable.

7. The lighting system, as set forth in claim 1 or claim 6, wherein the communication bus, the first cable, and the second cable are cables conforming to an RS485 communication protocol standard.

8. The lighting system, as set forth in claim 1, wherein the signal transmitted in each of the communication buses is transmitted sequentially along a cascade of dimming cells.

9. The lighting system, as set forth in claim 8, wherein the signal comprises addressing instructions;

each dimming unit is used for receiving the addressing command from the communication bus through a first signal terminal of the dimming unit, setting the self network address of the dimming unit to be a first address corresponding to the received first addressing command, generating a second addressing command corresponding to a second address generated by adding an offset to the first address, and outputting the second addressing command to the communication bus from a second signal terminal of the dimming unit for transmission to the next dimming unit in the cascade.

10. The illumination system of claim 1, comprising: and the power line is coupled with each dimming unit to supply power.

11. The lighting system of claim 1, wherein each dimming cell is provided with a separate bus line for communication bus communication, and wherein each dimming cell internal circuit communicates with the separate bus line to interact signals.