Atmosphere lamp controller integrated with ILaS network communication

Abstract

The utility model provides an atmosphere lamp controller integrated with ILaS network communication, which comprises a first connector, a communication module, a control unit, a transceiver module and a second connector which are connected in sequence, and the communication module is used for mutually converting a signal of an upper computer and a logic level signal of the control unit; the transceiving module is used for mutually converting a logic level signal of the control unit and a differential signal required by the atmosphere lamp; the transceiver module is connected with the second connector through a first ILaS bus, the bus is respectively connected with a first grounded filter capacitor and a second grounded filter capacitor at positions close to an ESP pin of the transceiver module, and the filter capacitors are arranged within 5mm away from a chip pin of the transceiver module; and a common mode inductor which is connected in series with the two differential lines of the first ILaS bus at the same time is arranged adjacent to the filter capacitor. The atmosphere lamp controller of the utility model can improve the EMI performance of the atmosphere lamp controller.

Description

Technical Field

[0001] The utility model relates to the field of ambient lights, and more specifically to an ambient light controller integrating ILaS network communication. Background Art

[0002] At present, in-vehicle ambient lights mainly use the LIN bus architecture to implement the in-vehicle network layout, but the LIN bus characteristics have certain limitations. The traditional LIN node method cascades each node through the LIN Switch function. Limited by the architecture and communication rate, the maximum number of single LIN nodes supports 15 nodes. If the entire vehicle interior space is arranged, multiple sub-LIN networks are required, which are integrated and managed through LIN gateway nodes. And the LIN bus speed is only 20Kbps, which is difficult to meet the increasingly upgraded lighting control requirements.

[0003] The new generation of ISELED (Intelligent Smart Embedded LED) technology solves this problem. The basic concept of ISELED lights is to transfer the parameters that originally needed to be processed by an external processor (such as brightness and color stability) to the RGB LED lights themselves. This means that ISELED lights are a "digital" device, so it can be addressed through a protocol, just like any other digital device. Only the target parameters representing color and brightness need to be read, greatly reducing the workload of the external MCU.

[0004] With the concept of the ILaS bus (ISELED lights and sensor network), the ISELED technology has been extended. The ILaS network is not only applicable to ISELED lights, but also can connect a large number of other components, such as sensors and actuators, through simple two differential lines.

[0005] In order to control the ambient lights, currently, an E2B hub, a gateway controller integrating Ethernet and ILaS communication technologies, is often used. This gateway controller receives the 10M / s Ethernet signal sent by the vehicle control terminal and converts it into a 2M / s ILaS signal to control the operation of the ambient lights in the vehicle occupant compartment. However, in the entire communication network, the E2B HUB only acts as a gateway, converting the received Ethernet signal into an ILaS signal for output, and does not have the ability to independently control the operation of the ambient lights. It must be paired with an upstream controller to control the ambient lights when in use.

[0006] The Korean patent document (KR102640052B1) discloses an ambient light control system, in which a control unit generates a control signal based on the CAN signal received from the body domain controller and transmits it to at least one ambient light through the ILaS network. However, it does not consider the influence of the ambient light on the control unit and cannot meet the EMI performance requirements of a higher-level control unit. SUMMARY OF THE UTILITY MODEL

[0007] An object of the present utility model is to provide an ambient light controller integrating ILaS network communication to improve the EMI performance of the ambient light controller.

[0008] To achieve the above object, the present utility model provides an ambient light controller integrating ILaS network communication, which includes a first connector, a communication module, a control unit, a transceiver module, and a second connector connected in sequence. The communication module is used to convert the signal of the host computer and the logic level signal of the control unit with each other; the transceiver module is used to convert the logic level signal of the control unit and the differential signal required by the ambient light with each other; the transceiver module and the second connector are connected through a first ILaS bus. A first filter capacitor grounded at one end and a second filter capacitor grounded at one end are respectively connected to the first ILaS bus at a position close to the ESP pin of the transceiver module. The first filter capacitor and the second filter capacitor are arranged within a distance of 5 mm from the chip pins of the transceiver module.

[0009] The first ILaS bus is an equal-length differential line, and the impedance of the first ILaS bus is consistent with the impedance characteristics of the wire harness of the ambient light connected through the second connector.

[0010] A common-mode inductor is provided adjacent to the first filter capacitor and the second filter capacitor and is connected in series to both differential lines of the first ILaS bus at the same time. The common-mode inductor is farther from the chip of the transceiver module than the first filter capacitor and the second filter capacitor; and / or a second connector TVS tube is provided on the first ILaS bus at the port of the second connector.

[0011] The communication module uses an RS232, UART, CAN, 485, or Ethernet communication chip.

[0012] The communication module has DOUT1 pin, RIN1 pin, ROUT1 pin, and DIN1 pin. Among them, the DOUT1 pin and the RIN1 pin are connected to the first connector, and the ROUT1 pin and the DIN1 pin are connected to the control unit; first resistors, second resistors, third resistors, and fourth resistors are respectively connected in series to the signal lines in series with the DOUT1 pin, RIN1 pin, ROUT1 pin, and DIN1 pin of the communication module.

[0013] A first connector TVS tube is provided on the signal lines of the DOUT1 pin and the RIN1 pin at the port of the first connector.

[0014] The control unit is configured to output a clock signal and a control logic level representing an ambient light effect instruction to control the operation of the ambient light when receiving a logic level of a preset representation mode command from the communication module; when receiving a feedback logic level from the transceiver module, return a corresponding logic level representing the state of the ambient light to the communication module; two pins of the control unit are connected to the communication module through a fifth resistor and a sixth resistor, and multiple other pins of the control unit are connected to the transceiver module through multiple resistors to improve EMI performance.

[0015] The control unit further includes multiple pins for obtaining manual commands generated through a key circuit and multiple pins connected to an LED indicator circuit. Each key switch of the key circuit corresponds to a pin of the control unit, and the key switch is driven by a button; the key circuit is configured such that when a single key switch is not pressed, the corresponding pin of the control unit is pulled low by a pull-down resistor; when a single key switch is pressed, the corresponding pin of the control unit is pulled high by a pull-up resistor; the control unit is configured to control the ambient light through the key switch in the absence of a host computer, and display different colors and brightness through the control of the LED indicator circuit as a human-machine interaction window when the ambient light is in different states.

[0016] The ambient light controller integrating ILaS network communication further includes a power supply module connected to an external power supply through a first connector. The power supply module is configured to receive a total power supply voltage VBAT from the external power supply and provide power supply voltages to the communication module, the control unit, and the transceiver module respectively.

[0017] The power supply module also supplies power to the ambient light and includes a power supply monitoring circuit connected to the ambient light; when the power supply monitoring circuit detects that the ambient light changes from a power-off state to a power-on state, the control unit and the transceiver module are kept silent for a fixed time to wait for the detection of the first branch device of the ambient light, and then the ambient light controller is allowed to send a signal to the ILaS bus.

[0018] The circuit layout of the transceiver module of the ambient light controller integrating ILaS network communication of the present utility model is different from that of the existing transceiver module. Its filter capacitors are arranged within a distance of 5 mm from the chip pins of the transceiver module, and a common-mode inductor connected in series to two differential lines of the first ILaS bus is provided adjacent to the first filter capacitor and the second filter capacitor, so that the external emission of the entire system can meet the requirements of the host factory class 5 level to improve EMI performance. Description of the Drawings

[0019] Figure 1 This is a usage scenario diagram of the atmosphere light controller integrating ILaS network communication of the present utility model.

[0020] Figure 2 This is a module composition diagram of the atmosphere light controller integrating ILaS network communication according to the first embodiment of the present utility model.

[0021] Figure 3 Such as Figure 1 shown, this is a circuit diagram of the transceiver module of the atmosphere light controller integrating ILaS network communication.

[0022] Figure 4 Such as Figure 1 shown, this is a layout diagram of the transceiver module of the atmosphere light controller integrating ILaS network communication on the surface of the PCB board.

[0023] Figure 5 Such as Figure 1 shown, this is a circuit diagram of the communication module of the atmosphere light controller integrating ILaS network communication.

[0024] Figure 6 Such as Figure 1 shown, this is a circuit diagram of the control unit of the atmosphere light controller integrating ILaS network communication.

[0025] Figure 7 This is a module composition diagram of the atmosphere light controller integrating ILaS network communication according to the second embodiment of the present utility model.

[0026] Figure 8 This is a module composition diagram of the atmosphere light controller integrating ILaS network communication according to the third embodiment of the present utility model. Detailed implementation manners

[0027] Next, in conjunction with the accompanying drawings, preferred embodiments of the present utility model are given and described in detail.

[0028] Such as Figure 1 shown, the atmosphere light controller integrating ILaS network communication of the present utility model is used in an atmosphere light system based on ILaS network communication. The atmosphere light system based on ILaS network communication includes a host computer 200 and at least one group of atmosphere lights 300. The host computer 200 is communicatively connected to the atmosphere lights 300 through the atmosphere light controller 100 integrating ILaS network communication of the present utility model. Thus, the atmosphere light controller 100 integrating ILaS network communication can convert the signal of the host computer 200 into an ILaS signal and control the operation of the atmosphere lights 300. In such as Figure 1In the scene shown, the number of atmosphere lights 300 is multiple and they are networked together. One of the atmosphere lights 300 is connected to the atmosphere light controller 100 that communicates with the integrated ILaS network of the present utility model through its own control terminal.

[0029] As Figure 2 shown, according to the first embodiment of the present utility model, the atmosphere light controller that communicates with the integrated ILaS network includes a first connector 50, a communication module 10, a control unit 20, a transceiver module 30, and a second connector 60 that are connected in sequence. Among them, the communication module 10 is used to convert the signal of the host computer 200 and the logic level signal (i.e., TTL level signal) of the control unit 20; the transceiver module 30 is used to convert the logic level signal (i.e., TTL level signal) of the control unit 20 and the differential signal required by the atmosphere light (i.e., ISELED); the control unit 20 is pre-coded and is set to output a clock signal CLK and a control logic level MOSI (in the form of an ILaS communication protocol packet) representing the atmosphere light effect instruction to the transceiver module 30 when receiving a preset logic level RXD representing a mode command from the communication module 10 to control the operation of the atmosphere light 300; when receiving a feedback logic level MISO from the transceiver module 30, it returns a corresponding logic level TXD representing the status of the atmosphere light to the communication module 10. Preferably, the first connector 50, the communication module 10, the control unit 20, the transceiver module 30, and the second connector 60 are provided on the same PCB board.

[0030] Thus, the atmosphere light controller 100 that communicates with the integrated ILaS network of the present utility model receives the command sent by the host computer through the communication module 10, and then the control unit 20 inside the atmosphere light controller analyzes the received command. After analysis, the control unit 20 converts the atmosphere light effect instruction corresponding to the command into an ILaS communication protocol packet and sends it to the transceiver module 30. Finally, the transceiver module 30 sends the atmosphere light effect instruction to the downstream atmosphere lights through the ILaS bus, thereby realizing the network operation of the atmosphere lights.

[0031] As Figures 2 - 4 shown, the transceiver module 30 uses a signal conversion chip. The signal conversion chip is not only set to convert the logic level signal (i.e., TTL level signal) of the control unit 20 into the differential signal required by the ILaS bus; but also has an automatic addressing function, enabling the control terminals of the atmosphere lights to be networked in a daisy chain manner.

[0032] The transceiver module 30 is connected to the second connector 60 through the first ILaS bus 90. The first ILaS bus 90 includes an upper differential line ILaS_H and a lower differential line ILaS_L. Among them, in order to improve the anti-interference ability of the ambient light controller, the first ILaS bus 90 between the transceiver module 30 and the second connector 60 adopts equal-length differential lines, that is, the lengths of the upper differential line ILaS_H and the lower differential line ILaS_L on the PCB are equal, so as to eliminate the signal phase difference problem caused by inconsistent signal line lengths, and can effectively resist external electromagnetic interference and internal crosstalk. In addition, the present utility model conducts impedance matching design on the first ILaS bus 90, so that the impedance of the first ILaS bus 90 on the PCB is consistent with the impedance characteristics of the wire harness of the ambient light connected through the second connector 60, thereby avoiding reflection / overshoot / ringing phenomena during the cross-media propagation of communication signals. The product designed in this way can effectively resist external electromagnetic interference and internal crosstalk; the ambient light controller designed in this way lights up the BMW NCAR ambient light and successfully passes the DV experiment verification.

[0033] The transceiver module 30 is connected to the control unit 20 through its general-purpose input / output pins (i.e., GPIO_0, GPIO_1, GPIO_2), and the transceiver module 30 is connected to the first ILaS bus 90 through its ESP pins (i.e., ESP_N, ESP_P).

[0034] In this embodiment, a first filter capacitor C1904 with one end grounded and a second filter capacitor C1905 with one end grounded are respectively connected to the first ILaS bus 90 at a position close to the ESP pins of the transceiver module 30, so as to increase the distributed capacitance between the communication line and the ground, divert the interference signal to the ground, and reduce the intensity of the electromagnetic wave radiated by the wire harness into the space. Among them, the first filter capacitor C1904 and the second filter capacitor C1905 are respectively arranged on the upper differential line ILaS_H and the lower differential line ILaS_L. The layout of the first filter capacitor C1904 and the second filter capacitor C1905 on the PCB is different from that of other products arranged at the connector port, but is designed close to the communication pins of the chip of the transceiver module 30. Specifically, the first filter capacitor C1904 and the second filter capacitor C1905 are arranged within a distance of 5 mm from the chip pins of the transceiver module 30, and are connected to the ground plane at an arbitrary angle, so that the RE (radiated emission) test can meet the class 5 level requirements. Therefore, the high-frequency interference signals generated when the chip of the transceiver module 30 is working can be filtered to the ground through the filter capacitor at the shortest path and the fastest speed;

[0035] In addition, a common-mode inductor FL2701 is provided adjacent to the first filter capacitor C1904 and the second filter capacitor C1905 and is connected in series to two differential lines of the first ILaS bus 90 at the same time. The common-mode inductor FL2701 is farther away from the chip of the transceiver module 30 than the first filter capacitor C1904 and the second filter capacitor C1905, so as to block the common-mode interference signal generated during the operation of the chip of the transceiver module 30 inside the ambient light controller of the present invention, filter the interference signal, reduce the external radiation emission of the ambient light controller, reduce the conduction and radiation interference on the wire harness, and make the external emission of the entire system meet the class 5 level requirements of the vehicle manufacturer, so as to improve the EMI performance.

[0036] In addition, second connector TVS tubes D2701 and D2702 are provided on the first ILaS bus 90 at the port of the second connector 60 to achieve clamping voltage protection. Specifically, when a high-voltage pulse exceeding the trigger threshold of the second connector TVS tube is transmitted to the inside of the ambient light controller through the cable / air, D2701 and D2702 can quickly respond and suppress this high-voltage pulse to a voltage range that the chip pins of the transceiver module 30 can withstand, thereby protecting the chip of the transceiver module 30 from being damaged by ESD.

[0037] For the position settings of the first ILaS bus 90, the first filter capacitor C1904, the second filter capacitor C1905 and the common-mode inductor FL2701, please refer to Figure 3 , Figure 4 the positions of the red circles in.

[0038] In addition, in the second embodiment, when the structure of the ambient light controller integrating ILaS network communication is basically the same as that of the first embodiment of the present invention, as Figure 7 shown, the common-mode inductor FL2701 can be omitted, and only by setting the first filter capacitor C1904 and the second filter capacitor C1905, the RE (radiated emission) test can meet the class 5 level requirements, but the EMI performance in this case is relatively worse.

[0039] As Figure 5 shown, in this embodiment, the information interaction between the ambient light controller and the host computer adopts the RS232 communication protocol to achieve asynchronous communication. Therefore, the communication module 10 uses an RS232 communication chip U2601.

[0040] As Figure 5 shown, the communication module 10 has DOUT1 pin, RIN1 pin, ROUT1 pin and DIN1 pin. Among them, the DOUT1 pin and the RIN1 pin are connected to the first connector 50, and the ROUT1 pin and the DIN1 pin are connected to the control unit 20.

[0041] When the electrical signal is transmitted from the control unit 20 inside the ambient light controller (or the EOL device for testing the ambient light controller) to the DOUT1 pin, RIN1 pin, ROUT1 pin, and DIN1 pin of the communication module 10, signal reflection is likely to occur. The reflected signal will be superimposed on the original signal on the signal line, causing the signal waveform to deform and resulting in communication errors. Therefore, in this embodiment, a first resistor R2601, a second resistor R2602, a third resistor R2603, and a fourth resistor R2604 are respectively connected in series on the signal lines connected in series with the DOUT1 pin, RIN1 pin, ROUT1 pin, and DIN1 pin of the communication module 10 to eliminate the reflection on the signal line. At the same time, it can also avoid signal overshoot and ringing, which helps to improve the signal quality, stabilize communication, and also has a certain improvement effect on the EMI performance of the ambient light controller.

[0042] The DOUT1 pin and RIN1 pin are the interfaces for the ambient light controller to communicate with the external host computer (or the EOL device for testing the ambient light controller). When the communication cable is plugged and unplugged, it is easy to cause ESD damage to the U2601 chip. Therefore, in this embodiment, first connector TVS tubes D2601 and D2602 are provided on the signal lines of the DOUT1 pin and RIN1 pin at the port of the first connector 50. When a high-voltage pulse exceeding the trigger threshold of the first connector TVS tube is transmitted through the cable / air to the connector interface of the ambient light controller, the first connector TVS tubes D2601 and D2602 can respond quickly and suppress this high-voltage pulse to the voltage range that the chip pins of the communication module 10 can withstand, thereby protecting the chips of the communication module 10 from being damaged by ESD.

[0043] In other embodiments, the information interaction between the ambient light controller and the host computer can also adopt communication methods such as UART / CAN / 485 / Ethernet, and correspondingly, the communication module 10 adopts UART / CAN / 485 / Ethernet communication chips.

[0044] As Figure 6 shown, in this embodiment, the control unit 20 is a micro-control unit and adopts a logic processing chip MCU, which plays roles such as signal processing, fault detection, control, and management of the ambient light operation in the whole system.

[0045] In this embodiment, the pins PB08 and PB09 of the control unit 20 are connected to the communication module 10 through a fifth resistor R723 and a sixth resistor R724 to prevent the signal transmitted from the chip of the communication module 10 from generating reflection at the pins of the control unit 20, ensure stable communication between the control unit 20 and the chip of the communication module 10, and improve the EMI performance of the system.

[0046] In this embodiment, multiple pins of the control unit 20 are connected to the transceiver module 30 through multiple resistors R721, R720, R722, and R725, so as to realize the interconnection and communication between the control unit 20 with full-duplex one-way communication and the transceiver module 30 with half-duplex two-way communication, and improve the system EMI performance.

[0047] Multiple pins PB00 - PB04 of the control unit 20 are also used to obtain commands, but the commands obtained by these pins are manual commands generated through the key circuit. Thus, when the ambient light controller is not connected to the host computer, the ambient light controller can control the operation of the ambient light by manually operating the keys. The key circuit consists of multiple key switches SW701 - SW705 and a pull-up resistor R731, and multiple pull-down resistors R707 - R711. Each key switch corresponds to a pin of the control unit 20, and the key switch is driven by the button 70. The key circuit is set such that when a single key switch is not pressed, the corresponding pin of the control unit 20 is pulled low by the pull-down resistor; when a single key switch is pressed, the corresponding pin of the control unit 20 is pulled high by the pull-up resistor R731. When the key switch is released and returns to the state where the key switch is not pressed, the corresponding pin of the control unit 20 returns to the low-level state, so that the pins PB00 - PB04 of the control unit 20 can identify the key actions through different level states, and then obtain the mode command.

[0048] In addition, multiple pins PB10 - PB14 of the control unit 20 are connected to an LED indicator circuit, and the LED indicator circuit is used in combination with the key circuit. The control unit 20 is set to control the ambient light through the key switch in the absence of a host computer, and when the ambient light is in different states, different colors and brightness are displayed by controlling the LED indicator circuit as a window for human-computer interaction.

[0049] The LED indicator circuit includes multiple LED indicator branches, and each LED indicator branch corresponds to an LED indicator, so as to display different colors through a single LED indicator or a combination of multiple LED lights. Each LED indicator circuit includes a switching transistor Q701 - Q705. The emitter of the switching transistor is grounded and connected to the base through resistors R706 - R702. The base of the switching transistor is connected to the pins PB10 - PB14 of the control unit 20 through base resistors R714 - R718. The collector of the switching transistor is connected to one end of the LED lights LED701 - LED703, and the other end of the LED lights LED701 - LED703 is connected to the 5V power supply voltage through voltage-dividing resistors R732 - R736.

[0050] Please refer to again Figure 2, in this embodiment, the ambient light controller integrating ILaS network communication further includes a power supply module 40 connected to an external power supply through a first connector 50. The power supply module 40 is configured to receive the total power supply voltage VBAT from the external power supply and supply power voltages to the communication module 10, the control unit 20, and the transceiver module 30 respectively.

[0051] According to the prior art, an ambient light using ILAS communication will send a signal with a duration less than 11us to the ILAS bus after power-on for 957us to perform the first branch device detection (FBDD). If the ambient light controller also sends a signal to the ILAS bus at this time, when the two signals appear on the ILAS bus simultaneously, it will cause signal conflict, resulting in the failure of the ambient light FBDD. After the failure of the ambient light FBDD, it will no longer respond to any commands sent by the ambient light controller to the ILAS bus. To solve the problem of FBDD failure after the ambient light is powered on, we design a power supply monitoring circuit on the ambient light controller to monitor the power supply status of the ambient light in real time.

[0052] Specifically, the power supply module 40 can also supply power to the ambient light 300 and includes a power supply monitoring circuit connected to the ambient light 300 to monitor the power supply status of the ambient light in real time. When the power supply monitoring circuit detects that the ambient light changes from the power-off state to the power-on state, it makes the control unit and the transceiver module remain silent for a fixed time to wait for the completion of the first branch device detection (FBDD) of the ambient light, and then allows the ambient light controller to send a signal to the ILAS bus. Thus, avoiding the FBDD signal of the ambient light and circumventing the signal conflict problem; in this embodiment, the fixed time is 968us.

[0053] As Figure 8 shown is the ambient light controller integrating ILaS network communication according to the third embodiment of the present invention. Its structure is basically the same as that of the first embodiment of the present invention, except that the ambient light controller does not contain a key circuit and an LED indicator circuit, so there is no need to set corresponding buttons.

[0054] The above-mentioned are only the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various changes can be made to the above embodiments of the present invention. That is, all simple, equivalent changes and modifications made according to the claims and the content of the specification of the present invention application fall within the scope of the claims of the present invention patent. What is not described in detail in the present invention is all conventional technical content.

Claims

1. An atmosphere light controller integrating ILaS network communication, characterized in that It includes a first connector, a communication module, a control unit, a transceiver module, and a second connector connected in sequence. The communication module is used to convert the signals of the host computer and the logic level signals of the control unit mutually; the transceiver module is used to convert the logic level signals of the control unit and the differential signals required by the ambient light mutually; The transceiver module is connected to the second connector through a first ILaS bus. A first filter capacitor with one end grounded and a second filter capacitor with one end grounded are respectively connected to the first ILaS bus at a position close to the ESP pin of the transceiver module. The first filter capacitor and the second filter capacitor are arranged within a distance of 5 mm from the chip pins of the transceiver module.

2. The atmosphere light controller integrating ILaS network communication according to claim 1, characterized in that, The first ILaS bus is an equal-length differential line, and the impedance of the first ILaS bus is consistent with the impedance characteristics of the wire harness of the ambient light connected through the second connector.

3. The atmosphere lamp controller integrating ILaS network communication according to claim 1, characterized in that, A common-mode inductor is provided adjacent to the first filter capacitor and the second filter capacitor and is connected in series to the two differential lines of the first ILaS bus at the same time. The common-mode inductor is farther from the chip of the transceiver module than the first filter capacitor and the second filter capacitor; and / or A second connector TVS tube is provided on the first ILaS bus at the port of the second connector.

4. The atmosphere lamp controller integrating ILaS network communication according to claim 1, characterized in that, The communication module uses an RS232, UART, CAN, 485 or Ethernet communication chip.

5. The atmosphere lamp controller integrating ILaS network communication according to claim 1, characterized in that The communication module has DOUT1 pin, RIN1 pin, ROUT1 pin and DIN1 pin. Among them, the DOUT1 pin and the RIN1 pin are connected to the first connector, and the ROUT1 pin and the DIN1 pin are connected to the control unit; first resistors, second resistors, third resistors and fourth resistors are respectively connected in series to the signal lines in series with the DOUT1 pin, RIN1 pin, ROUT1 pin and DIN1 pin of the communication module.

6. The atmosphere lamp controller integrating ILaS network communication according to claim 5, characterized in that, A first connector TVS tube is provided on the signal lines of the DOUT1 pin and the RIN1 pin at the port of the first connector.

7. The atmosphere lamp controller integrating ILaS network communication according to claim 1, wherein The control unit is set to output a clock signal and a control logic level representing the ambient light effect instruction to control the operation of the ambient light when receiving a preset logic level representing a mode command from the communication module; When receiving a feedback logic level from the transceiver module, return a corresponding logic level representing the status of the ambient light to the communication module; Two pins of the control unit are connected to the communication module through a fifth resistor and a sixth resistor, and multiple other pins of the control unit are connected to the transceiver module through multiple resistors to improve the EMI performance.

8. The atmosphere lamp controller integrating ILaS network communication according to claim 7, characterized in that, The control unit further includes multiple pins for obtaining manual commands generated through a key circuit and multiple pins connected to an LED indicator circuit. Each key switch of the key circuit corresponds to a pin of the control unit, and the key switch is driven by a button; The key circuit is set to pull the corresponding pin of the control unit to a low level by a pull-down resistor when a single key switch is not pressed; when a single key switch is pressed, the corresponding pin of the control unit is pulled to a high level by a pull-up resistor; The control unit is set to control the ambient light through the key switch in the absence of a host computer. When the ambient light is in different states, the LED indicator circuit is controlled to display different colors and brightness as a window for human-machine interaction.

9. The atmosphere lamp controller integrating ILaS network communication according to claim 1, characterized in that, The ambient light controller integrating ILaS network communication further includes a power supply module connected to an external power supply through a first connector. The power supply module is set to receive the total power supply voltage VBAT from the external power supply and supply power voltages to the communication module, the control unit, and the transceiver module respectively.

10. The atmosphere lamp controller integrating ILaS network communication according to claim 9, characterized in that, The power supply module also supplies power to the ambient light and includes a power supply monitoring circuit connected to the ambient light; When the power supply monitoring circuit detects that the ambient light changes from a power-off state to a power-on state, the control unit and the transceiver module are kept silent for a fixed time to wait for the detection of the first branch device of the ambient light to be completed, and then the ambient light controller is allowed to send a signal to the ILAS bus.

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