Lighting system controllers, tracks and lighting systems

Abstract

The present application provides a lighting system controller, track, and lighting system. The lighting system controller includes a power module, a processor, a control module for generating or processing a first control signal, as well as a first communication interface, a second communication interface, a detection circuit, and an analysis circuit. The second communication interface receives the second control signal or the third control signal input, which is converted into the first control signal through the detection circuit, the analysis circuit, and the processor and output from the first communication interface. The lighting system controller of the present invention can be connected to an existing track system to achieve unified configuration and operation of the track throughout the house, or it can be used as a standalone controller to meet the different needs of different customers.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and in particular to a lighting system controller, a track and a lighting system. Background Art

[0002] Digital lighting technology offers ease of control and maintenance, meeting the needs for energy conservation, emission reduction, and intelligent management, and has gained widespread attention in industrial and commercial lighting. DALI, a standard communication interface and protocol, is widely used in lighting projects due to its logarithmic dimming curve and gradual adjustment effects tailored to human visual perception, along with a rich set of dimming commands. The DALI protocol is based on a master-slave control model, involving a master controller and lighting fixtures, with the master controller performing dimming control over the lighting fixtures.

[0003] The vast majority of current track lighting products utilize DALI controllers, which use track conductors as the DALI bus to dim and adjust the lighting, enabling track-wide control. However, when retrofitting a lighting system, it's necessary to integrate with other existing control systems. For example, if the original track system utilizes PWM or 0-10V control, the new and old track systems cannot be directly connected due to different control protocols, resulting in a lack of unified control. Therefore, the challenge of simply and efficiently expanding existing track lighting systems and achieving unified control across different track systems has become a pressing issue. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that tracks with different control protocols in a track lighting control system cannot be controlled together.

[0005] To achieve the above-mentioned object, the present invention adopts a technical solution to provide a lighting system controller, comprising: a power module, a processor, a control module for generating or processing a first control signal, and a first communication interface, wherein the first communication interface connects the control module and an external control bus, and is characterized in that the controller further comprises:

[0006] A second communication interface, configured to receive a second control signal or a third control signal;

[0007] a detection circuit connected to the second communication interface and the processor, the detection circuit outputting a judgment signal to the processor based on the type of the signal received by the second communication interface, the processor performing subsequent processing based on the judgment signal; if it is determined that the second communication interface receives the second control signal, the detection circuit simultaneously converts the second control signal, the processor receives the signal obtained by the detection circuit after converting the second control signal, converts the signal into a first control signal, and transmits the first control signal to the control module;

[0008] an analysis circuit connected to the second communication interface and the processor, and if it is determined that the second communication interface receives the third control signal, the processor receives the signal obtained by converting the third control signal by the analysis circuit, converts the signal into a first control signal, and transmits the first control signal to the control module;

[0009] When the second communication interface receives the second control signal or the third control signal, the control module transmits the first control signal from the processor to the first communication interface; otherwise, the control module transmits the first control signal generated by itself to the first communication interface.

[0010] Preferably, the second control signal is a PWM control signal, and the third control signal is a 0-10V control signal.

[0011] Preferably, the detection circuit includes an isolation circuit and a first conversion circuit, the second communication interface is connected to the isolation circuit, its input signal is processed by the isolation circuit and output at the PWM end, the PWM end outputs a judgment signal to the processor, the first conversion circuit is connected to the PWM end and converts the signal at the PWM end into a signal that can be processed by the processor and output by the output end ADC2.

[0012] Preferably, when the PWM end outputs a PWM waveform, it is determined that the second communication interface input is the second control signal; when the PWM end outputs a high level, it is determined that the second communication interface input is the third control signal.

[0013] Preferably, the isolation circuit includes a first optocoupler, one end of the input side of the first optocoupler is pulled up to the supply voltage through a first resistor and is grounded through a first voltage regulator tube, the other end of the input side of the first optocoupler is connected to the collector of the first transistor through a second resistor, the base of the first transistor is connected to the second communication interface through a third resistor, the emitter of the first transistor is grounded, one end of the output side of the first optocoupler is connected to the base of the second transistor, the fourth resistor is connected to the high level and the base of the second transistor, the fifth resistor is connected to the high level and the collector of the second transistor, the sixth resistor and the first capacitor are connected in parallel between the collector and emitter of the second transistor, the seventh resistor is connected between the collector of the second transistor and the PWM end, and the other end of the first optocoupler and the emitter of the second transistor are grounded.

[0014] Preferably, the analysis circuit includes a first chip, the signal input by the second communication interface is input into the first chip, converted into a PWM signal and connected to one end of the input side of the second optocoupler through an eighth resistor, the other end of the second optocoupler input side is grounded, and a ninth resistor is also connected between one end and the other end of the second optocoupler input side. One end of the output side of the second optocoupler is connected to the second conversion circuit and is pulled up to a high level through an eleventh resistor, and the other end is grounded. The second conversion circuit converts the received signal into a signal that can be processed by the processor and outputs it by the output end ADC1.

[0015] Preferably, the first conversion circuit and the second conversion circuit have the same structure, including a MOS transistor, a gate of the MOS transistor being connected to the PWM end or one end of the second optocoupler output side, a twelfth resistor being connected between the gate of the MOS transistor and ground, the source of the MOS transistor being grounded, and the drain of the MOS transistor being pulled up to a high level by a thirteenth resistor, and a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor being connected in series in sequence between the drain of the MOS transistor and the output end ADC2 of the first conversion circuit or the output end ADC1 of the second conversion circuit, one end of the second capacitor being connected to the connection point of the fourteenth resistor and the fifteenth resistor, and the other end being grounded, one end of the third capacitor being connected to the connection point of the fifteenth resistor and the sixteenth resistor, and the other end being grounded, and a fourth capacitor and a fifth capacitor being connected in parallel between the output end ADC2 of the first conversion circuit or the output end ADC1 of the second conversion circuit and ground.

[0016] Preferably, the first control signal is a DALI signal.

[0017] The present invention also provides a track, characterized in that the track includes a track body and a first conductive strip, a second conductive strip, and a third conductive strip arranged along the extension direction of the track body, wherein the first conductive strip is used to transmit a first control signal, the second conductive strip is used to transmit a second control signal or a third control signal, and the third conductive strip is used to supply power. The lighting system controller as described above is connected to the track body, the first communication interface is electrically connected to the first conductive strip, and the second communication interface is electrically connected to the second conductive strip.

[0018] Preferably, the second control signal is a PWM control signal, and the third control signal is a 0-10V control signal.

[0019] Preferably, the first control signals are all DALI control signals.

[0020] The present invention also provides a lighting system, characterized in that it includes the track as described above, the lighting system controller as described above, and at least one lighting unit, the lighting system controller is connected to the track body, the first communication interface is electrically connected to the first conductive strip, the second communication interface is electrically connected to the second conductive strip, the lighting unit is arranged on the track body, the lighting unit is electrically connected to the third conductive strip to receive power, the lighting unit is electrically connected to the first conductive strip, receives the first control signal output by the first communication interface, and responds to the first control signal.

[0021] Preferably, the lighting system further comprises an upper track, the upper track comprises a fourth conductive strip for transmitting the second control signal or the third control signal, and the fourth conductive strip is electrically connected to the second conductive strip.

[0022] Preferably, the second control signal is a PWM control signal, the third control signal is a 0-10V control signal, and the first control signal is a DALI control signal. When the second control signal or the third control signal is present on the fourth conductive strip, the lighting system controller converts the second control signal or the third control signal into the first control signal to control the lighting unit; otherwise, the lighting system controller directly generates the first control signal to control the lighting unit.

[0023] The lighting system controller provided by the present invention not only retains the functions of the original controller and can directly control the dimming and color adjustment of lamps, but also the added input interface allows it to be connected to the existing track lighting system. When connected, the existing system control signal line is connected to the second communication interface. By identifying the input signal of the second communication interface, it can be compatible with both PWM control and 0-10V control control systems, and convert them into DALI control signals. Therefore, the DALI lamps in the newly connected system can also be used and controlled at the same time as the lamps in the original system. If the uplink line is not connected, the controller will control the track it is on. The lighting system controller provided by the present invention can be connected to the existing track system to achieve unified configuration and operation of the entire house track, and can also be used as a controller alone to meet the different needs of different customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of a controller according to a preferred embodiment of the present invention;

[0025] Figure 2 is a circuit diagram of a detection circuit in a controller according to a preferred embodiment of the present invention;

[0026] Figure 3 is a circuit diagram of an analytical circuit in a controller according to a preferred embodiment of the present invention;

[0027] Figure 4 This is a peripheral circuit diagram of a processor in a controller according to a preferred embodiment of the present invention;

[0028] Figure 5 1 is a schematic cross-sectional structural diagram of a track according to a preferred embodiment of the present invention;

[0029] Figure 6 It is a structural block diagram of a lighting system according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0030] The lighting system controller, track and lighting system proposed in the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Figure 1 The lighting system controller 1 of a preferred embodiment of the present invention is shown, comprising a power module 101, a processor 102, a control module 103, and a first communication interface 106. These components are identical to existing controllers. The power module 101 supplies power to the processor 102 and the control module 103. The control module 103 can generate or process a first control signal, which is connected to an external control bus via the first communication interface 106 to control the controlled device. Lighting control generally follows a specific protocol. The lighting system controller 1 of the present invention is applied to a track lighting system and therefore utilizes a wired protocol. In this embodiment, the first control signal is a DALI control signal, the control module 103 is a DALI host, and the first communication interface 106 is externally connected to the DALI bus. The lighting system controller 1 controls the DALI lamps connected to the bus.

[0032] If a user purchases DALI lamps, but the existing lighting control system uses PWM control or 0-10V control, the DALI lamps cannot be integrated into the existing system for unified control. The above modules implement all the functions of a traditional DALI controller. The present invention improves upon this by further comprising a second communication interface 105, a detection circuit 104, and an analysis circuit 108. The second communication interface 105 can receive either a second control signal or a third control signal. This means that the lighting system controller 1 of the present invention can simultaneously accommodate two different control signals. When different signals are input, the detection circuit 105 first determines which signal is being input. The detection circuit 104 connects the second communication interface 105 to the processor 102. Based on the type of signal received by the second communication interface 105, the detection circuit 104 outputs a determination signal to the processor 102, which analyzes the determination signal and performs subsequent processing. If the second communication interface 105 determines that the signal received is the second control signal, the processor 102 receives the signal obtained by the detection circuit 104 after converting the second control signal, converts it into the first control signal, and transmits it to the control module 103. If the second communication interface 105 receives a second control signal, the processor 102 receives the signal obtained by converting the second control signal by the detection circuit 104, converts the signal into a first control signal, and transmits the signal to the control module 103. If the second communication interface 105 receives a third control signal, the processor 102 receives the signal obtained by converting the third control signal by the analysis circuit 108, converts the signal into a first control signal, and transmits the signal to the control module 103. When the second communication interface 105 receives either the second or third control signal, the control module 103 transmits the first control signal from the processor 102 to the first communication interface 106. Since the first communication interface 106 is connected to the DALI bus, all lamps are controlled by the DALI protocol. The lighting system controller 1 proposed by the present invention enables control of DALI lamps using other lamp control signals. In other preferred embodiments, conversion to other wired protocols, such as DMX, is also possible, but this application is not limited to this. On the contrary, when there is no signal input to the second communication interface 105, the lighting system controller 1 still functions as an independent controller, and the first communication interface 106 outputs the first control signal generated by the control module 103 to control the connected lamps.

[0033] In this embodiment, the second control signal is a PWM control signal, and the third control signal is a 0-10V control signal, that is, the lighting system controller 1 is compatible with both control signals and converts them into DALI signals to control the DALI lamps.

[0034] The specific circuit diagram of the detection circuit 104 in this embodiment is as follows Figure 2As shown, the detection circuit 104 includes a first isolation circuit 1041 and a first conversion circuit 1042. The second communication interface 105 is connected to the isolation circuit 1041. Its input signals, labeled IN+ and IN- in the figure, are processed by the isolation circuit 1041 and output at the PWM terminal. The PWM terminal is connected to the processor 102 and outputs the judgment signal to the processor 102. The first conversion circuit 1042 is connected to the PWM terminal and converts the signal at the PWM terminal into a signal that can be processed by the processor 102 and outputs it to the output terminal ADC2.

[0035] like Figure 2 The isolation circuit 1041 shown includes a first optocoupler U1. One input terminal of the first optocoupler U1 is pulled up to the supply voltage VCC1 via a first resistor R302 and grounded via a first voltage regulator diode D33. The other input terminal of the first optocoupler U1 is connected to the collector of a first transistor Q1 via a second resistor R309. The base of the first transistor Q1 is connected to the input signal IN+ via a third resistor R303. The input signal IN- and the emitter of the first transistor Q1 are grounded. The input signals IN+ and IN- are input from the second communication interface 105. One end of the output side of the first optocoupler U1 is connected to the base of the second transistor Q2, the fourth resistor R305 is connected to the 3.3V high level and the base of the second transistor Q2, the fifth resistor R306 is connected to the 3.3V high level and the collector of the second transistor Q2, the sixth resistor R308 and the first capacitor C79 are connected in parallel between the collector and emitter of the second transistor Q2, the seventh resistor R307 is connected between the collector of the second transistor Q2 and the PWM end, and the other end of the first optocoupler U1 and the emitter of the second transistor Q2 are grounded.

[0036] In this embodiment, the high level is 3.3V. In other embodiments, it can be set according to the chip requirements. The PWM end is connected to the processor 102. The processor 102 determines whether it is a 0-10V or PWM signal based on whether the high level or PWM waveform transmitted from the PWM end to confirm the input. When the second communication interface 105 inputs the third control signal, in this embodiment it is a 0-10V signal. After isolation by the first optocoupler U1, the PWM end outputs a high level. When it is the second control signal, in this embodiment it is a PWM signal, the PWM end outputs a PWM waveform, and the controller 102 determines that it is a PWM signal based on the waveform. The 3.3V PWM waveform output by the PWM end is then converted by the first conversion circuit 1042 into a level waveform acceptable to the processor 102, and output from the output end ADC2. After receiving it, the processor 102 converts it into a DALI signal, and then the controller 103 performs synchronous dimming on the downstream DALI lamp to achieve a PWM to DALI dimming effect.

[0037] The first conversion circuit 1042 includes a MOS transistor Q3. The gate of the MOS transistor Q3 is connected to the PWM terminal. A twelfth resistor R4 is connected between the gate of the MOS transistor Q3 and ground. The source of the MOS transistor Q3 is grounded. The drain of the MOS transistor Q3 is pulled up to a high level of 3.3V via a thirteenth resistor R59. A fourteenth resistor R1, a fifteenth resistor R2, and a sixteenth resistor R3 are connected in series between the drain of the MOS transistor Q3 and the output terminal ADC2 of the first conversion circuit 1042. One end of a second capacitor C1 is connected to the connection point of the fourteenth resistor R1 and the fifteenth resistor R2, and the other end is grounded. One end of a third capacitor C2 is connected to the connection point of the fifteenth resistor R2 and the sixteenth resistor R3, and the other end is grounded. A fourth capacitor C3 and a fifth capacitor C4 are connected in parallel between the output terminal ADC2 of the first conversion circuit 1042 and ground.

[0038] In this embodiment, the analytical circuit 108 is as follows Figure 3 As shown, the analysis circuit 108 includes a first chip U3, and the signal input by the second communication interface 105 is connected to pin 5 of the first chip U3. When it is a 0-10V signal, the first chip U3 outputs a corresponding duty cycle PWM signal at its pin 4 according to the 0-10V level. Pin 4 of the first chip U3 is connected to one end of the input side of the second optocoupler U2 through an eighth resistor R33, and the other end of the input side of the second optocoupler U2 is grounded. A ninth resistor R58 is also connected between one end and the other end of the input side of the second optocoupler U2. One end of the output side of the second optocoupler U2 is connected to the second conversion circuit 1081, and at the same time is pulled up to a high level of 3.3V through an eleventh resistor R30, and the other end of the second optocoupler U2 is grounded. The second conversion circuit 1081 converts the received PWM waveform into a level signal that can be processed by the processor 102 and outputs it by the output terminal ADC1.

[0039] In this embodiment, the structure and function of the second conversion circuit 1081 are the same as those of the first conversion circuit 1042. The second conversion circuit 1081 includes a MOS transistor Q4. The gate of the MOS transistor Q4 is connected to one end of the output side of the second optocoupler U2. A twelfth resistor R62 is connected between the gate of the MOS transistor Q4 and ground. The source of the MOS transistor Q4 is grounded, and the drain of the MOS transistor Q4 is pulled up to a high level of 3.3V via a thirteenth resistor R59. Furthermore, a fourteenth resistor R60, a fifteenth resistor R61, and a sixteenth resistor R63 are connected in series between the drain of the MOS transistor Q4 and the output terminal ADC1 of the second conversion circuit 1081. One end of a second capacitor C55 is connected to the connection point between the fourteenth resistor R60 and the fifteenth resistor R61, and the other end is grounded. One end of a third capacitor C18 is connected to the connection point between the fifteenth resistor R61 and the sixteenth resistor R63, and the other end is grounded. A fourth capacitor C19 and a fifth capacitor C20 are connected in parallel between the output terminal ADC1 of the second conversion circuit 1081 and ground.

[0040] The processor 102 in this embodiment is as follows Figure 4 In the MCU chip shown, the PWM terminal of the detection circuit 104 is connected to pin 32, the output terminal ADC1 of the second conversion circuit 1081 is connected to pin 16, and the output terminal ADC2 of the first conversion circuit 1042 is connected to pin 14. In other preferred embodiments, the pin numbering may vary due to different MCU chip models, and this application does not limit this. When a high level signal is transmitted from the PWM terminal of the detection circuit 104, the MCU determines that the input of the second communication interface 105 is a 0-10V signal, receives the signal transmitted from the output terminal ADC1 of the second conversion circuit 1081 to pin 16, and converts it into a DALI signal. When a PWM waveform is transmitted from the PWM terminal of the detection circuit 104, the MCU determines that the input of the second communication interface 105 is a PWM signal, receives the signal transmitted from the output terminal ADC2 of the first conversion circuit 1042 to pin 14, and converts it into a DALI signal. When the second communication interface 105 does not receive a signal, the PWM terminal of the detection circuit 104 also outputs no signal. The lighting system controller 1 acts as an independent DALI controller, and the control module 103 directly outputs control signals to the first communication interface 106 to its subordinate lamps.

[0041] The lighting system controller 1 can be used in any type of wired lighting control system. In a preferred embodiment, the lighting system controller 1 is attached to the track 2, and its cross-sectional view is as shown. Figure 5 As shown. The track 2 includes a track body 21 and a first conductive bar 22, a second conductive bar 24, and a third conductive bar 23 arranged along the extension direction of the track body 21, wherein the first conductive bar 22 is used to transmit a first control signal, the second conductive bar 24 is used to transmit a second control signal or a third control signal, and the third conductive bar 23 is used to supply power. The lighting system controller 1 is arranged on the track body 21, and the first communication interface 106 of the lighting system controller 1 is electrically connected to the first conductive bar 22, and the second communication interface 105 is electrically connected to the second conductive bar 24. In this embodiment, the lighting system controller 1 is directly arranged on the track body 21. In other preferred embodiments, the lighting system controller 1 can also be arranged outside the track body 21, and the first communication interface 106 and the first conductive bar 22, and the second communication interface 105 and the second conductive bar 24 are connected by wires. This application is not limited to this.

[0042] After the track 2 and the lighting system controller 1 are connected, at least one lighting unit 3 provided on the track body 21 is added to form a lighting system of a preferred embodiment of the present application, and its structural block diagram is shown as follows: Figure 6The lighting unit 3 is provided on the track body 21, and is electrically connected to the third conductive strip 23 to receive power. The lighting unit 3 is electrically connected to the first conductive strip 22, and receives the first control signal output by the first communication interface 106, and responds to the signal to adjust the light and color under its control.

[0043] The lighting system also includes an upper track 4, which includes a fourth conductive strip 42 for transmitting a second or third control signal and a fifth conductive strip 41 for powering the lighting unit 3. The fourth conductive strip 42 is electrically connected to the second conductive strip 24, and the fifth conductive strip 41 is electrically connected to the third conductive strip 23. At this point, the first and second or third control signals are transmitted by the first and second conductive strips 22 and 24, respectively, while the lighting unit 3 only receives the first control signal from the first conductive strip 22. The lighting system controller 1 then transparently converts the second or third control signal from the second conductive strip 24 into the first control signal, which is then transmitted to the first conductive strip 22 to control the lighting unit 3. In this embodiment, the first control signal is a DALI control signal, the second control signal is a PWM control signal, and the third control signal is a 0-10V control signal.

[0044] The upper track 4 may be part of an existing track lighting system. When expansion is needed, it may no longer be possible to purchase a track with the same structure as the original upper track 4, or it may be impossible to purchase lighting units 3 that can be installed on the original upper track 4. For example, if the upper track 4 is a PWM control system, and most lamps currently on the market are DALI-controlled, then by connecting the track 2 of this embodiment, the new lighting unit 3 can be connected to the original track system. In this embodiment, the new DALI lamp can be installed on the track 2 provided by the present invention. After connecting to the upper track 4, it is compatible with both PWM and 0-10V control modes. Regardless of which of the two control modes the original system uses, the lighting system controller 1 can convert the signal into a DALI control signal. The newly added DALI track lights can then be connected to the same host computer as the original system for unified dimming and color adjustment. This allows unified management by adding new tracks without changing the original track system. When the original track system does not require unified control of the new equipment, the track 2, lighting system controller 1, and lighting units 3 of this embodiment can form an independently controlled lighting system. The lighting system controller 1 can implement autonomous DALI control just like a traditional track controller.

[0045] The above description of the preferred embodiments of the present application is for illustration and description purposes and is not intended to be exhaustive or to limit the present application to the specific forms disclosed. Obviously, many modifications and changes may be made, which may be obvious to those skilled in the art and should be included within the scope of the present application as defined by the appended claims.

Claims

1. A lighting system controller, comprising: a power module, a processor, a control module for generating or processing a first control signal, and a first communication interface, wherein the first communication interface connects the control module and an external control bus, wherein: The controller further includes: A second communication interface, configured to receive a second control signal or a third control signal; a detection circuit connected to the second communication interface and the processor, the detection circuit outputting a judgment signal to the processor based on the type of the signal received by the second communication interface, the processor performing subsequent processing based on the judgment signal; if it is determined that the second communication interface receives the second control signal, the detection circuit simultaneously converts the second control signal, the processor receives the signal obtained by the detection circuit after converting the second control signal, converts the signal into a first control signal, and transmits the first control signal to the control module; an analysis circuit connected to the second communication interface and the processor, and if it is determined that the second communication interface receives the third control signal, the processor receives the signal obtained by converting the third control signal by the analysis circuit, converts the signal into a first control signal, and transmits the first control signal to the control module; When the second communication interface receives the second control signal or the third control signal, the control module transmits the first control signal from the processor to the first communication interface; otherwise, the control module transmits the first control signal generated by itself to the first communication interface.

2. The lighting system controller according to claim 1, wherein: The second control signal is a PWM control signal, and the third control signal is a 0-10V control signal.

3. The lighting system controller according to claim 2, characterized in that: The detection circuit includes an isolation circuit and a first conversion circuit. The second communication interface is connected to the isolation circuit. Its input signal is processed by the isolation circuit and output at the PWM end. The PWM end outputs a judgment signal to the processor. The first conversion circuit is connected to the PWM end and converts the signal at the PWM end into a signal that can be processed by the processor and outputted by the output end ADC2.

4. The lighting system controller according to claim 3, characterized in that: When the PWM terminal outputs a PWM waveform, it is determined that the second communication interface input is the second control signal; when the PWM terminal output is a high level, it is determined that the second communication interface input is the third control signal.

5. The lighting system controller according to claim 4, characterized in that: The isolation circuit includes a first optocoupler, one end of the input side of the first optocoupler is pulled up to the power supply voltage through a first resistor and is grounded through a first voltage regulator tube, the other end of the input side of the first optocoupler is connected to the collector of the first transistor through a second resistor, the base of the first transistor is connected to the second communication interface through a third resistor, the emitter of the first transistor is grounded, one end of the output side of the first optocoupler is connected to the base of the second transistor, the fourth resistor is connected to the high level and the base of the second transistor, the fifth resistor is connected to the high level and the collector of the second transistor, the sixth resistor and the first capacitor are connected in parallel between the collector and emitter of the second transistor, the seventh resistor is connected between the collector of the second transistor and the PWM end, and the other end of the first optocoupler and the emitter of the second transistor are grounded.

6. The lighting system controller according to claim 4, characterized in that: The analysis circuit includes a first chip, and the signal input by the second communication interface is input into the first chip, converted into a PWM signal and connected to one end of the input side of the second optocoupler through an eighth resistor. The other end of the second optocoupler input side is grounded. A ninth resistor is also connected between one end and the other end of the second optocoupler input side. One end of the output side of the second optocoupler is connected to the second conversion circuit and is pulled up to a high level through an eleventh resistor. The other end is grounded. The second conversion circuit converts the received signal into a signal that can be processed by the processor and outputs it through the output end ADC1.

7. The lighting system controller according to claim 6, characterized in that: The first conversion circuit and the second conversion circuit have the same structure and include a MOS transistor. The gate of the MOS transistor is connected to the PWM terminal or one end of the second optocoupler output side. A twelfth resistor is connected between the gate of the MOS transistor and ground. The source of the MOS transistor is grounded. The drain of the MOS transistor is pulled up to a high level through a thirteenth resistor. At the same time, a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor are connected in series between the drain of the MOS transistor and the output terminal ADC2 of the first conversion circuit or the output terminal ADC1 of the second conversion circuit. One end of the second capacitor is connected to the connection point of the fourteenth resistor and the fifteenth resistor, and the other end is grounded. One end of the third capacitor is connected to the connection point of the fifteenth resistor and the sixteenth resistor, and the other end is grounded. The fourth capacitor and the fifth capacitor are connected in parallel between the output terminal ADC2 of the first conversion circuit or the output terminal ADC1 of the second conversion circuit and ground.

8. The lighting system controller according to any one of claims 1 to 7, characterized in that: The first control signal is a DALI signal.

9. A track, characterized in that: The track includes a track body and a first conductive strip, a second conductive strip, and a third conductive strip arranged along the extension direction of the track body, wherein the first conductive strip is used to transmit a first control signal, the second conductive strip is used to transmit a second control signal or a third control signal, and the third conductive strip is used to supply power. The lighting system controller described in any one of claims 1-8 is connected to the track body, the first communication interface is electrically connected to the first conductive strip, and the second communication interface is electrically connected to the second conductive strip.

10. The track according to claim 9, characterized in that The second control signal is a PWM control signal, and the third control signal is a 0-10V control signal.

11. The track according to claim 10, characterized in that The first control signal is a DALI control signal.

12. A lighting system, characterized in that: It includes a track as described in any one of claims 9 to 11, a lighting system controller as described in any one of claims 1 to 8, and at least one lighting unit, wherein the lighting system controller is connected to the track body, the first communication interface is electrically connected to the first conductive strip, the second communication interface is electrically connected to the second conductive strip, the lighting unit is arranged on the track body, the lighting unit is electrically connected to the third conductive strip to receive power, the lighting unit is electrically connected to the first conductive strip, receives a first control signal output by the first communication interface, and responds to the first control signal.

13. The lighting system according to claim 12, characterized in that The lighting system further includes an upper track, which includes a fourth conductive strip for transmitting the second control signal or the third control signal, and the fourth conductive strip is electrically connected to the second conductive strip.

14. The lighting system according to claim 13, wherein: The second control signal is a PWM control signal, the third control signal is a 0-10V control signal, and the first control signal is a DALI control signal. When the second control signal or the third control signal is present on the fourth conductive strip, the lighting system controller converts the second control signal or the third control signal into the first control signal to control the lighting unit; otherwise, the lighting system controller directly generates the first control signal to control the lighting unit.

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