CN-122002661-A - Atmosphere lamp control system, assembly and control method thereof

CN122002661ACN 122002661 ACN122002661 ACN 122002661ACN-122002661-A

Abstract

The invention provides an atmosphere lamp control system, an atmosphere lamp control assembly and a control method thereof. The system comprises a master controller, one or more atmosphere lamp slave controllers connected with the LIN bus and the master controller, and one or more atmosphere lamps. When the LIN frame data sent by the main controller comprises an autonomous color-changing mode triggering instruction, each atmosphere lamp slave controller enters an autonomous color-changing mode. In the autonomous color-changing mode, each atmosphere lamp outputs a modulation signal corresponding to the current color and/or brightness from the controller based on a predetermined rule of the autonomous color-changing mode, and counts the received LIN frame data to time the duration of the current color and/or brightness, when the duration reaches a preset duration threshold value, each atmosphere lamp outputs a new modulation signal corresponding to the current color and/or brightness from the controller based on a preset rule of the autonomous color-changing mode. Therefore, the color and brightness synchronization of a plurality of atmosphere lamps in the LIN communication network during autonomous color change can be realized.

Inventors

LU JIAMIN
SONG JUNMING

Assignees

科博达技术股份有限公司
浙江科博达工业有限公司

Dates

Publication Date: 20260508
Application Date: 20260402

Claims (9)

1. An atmosphere lamp control system, characterized in that it comprises: the master controller comprises a plurality of LIN interfaces, and each LIN interface is connected with a corresponding LIN bus; One or more atmosphere lamp slave controllers, wherein each atmosphere lamp slave controller is connected with a corresponding one of the LIN buses; one or more atmosphere lamps, wherein each atmosphere lamp is connected with a corresponding one of the atmosphere lamps from the controller; wherein the master controller periodically transmits LIN frame data to each LIN bus, the atmosphere lamp receives part or all of each LIN frame data transmitted from the corresponding LIN bus from the controller, When the LIN frame data comprises an autonomous color-changing mode triggering instruction, each atmosphere lamp enters an autonomous color-changing mode from a controller, In the autonomous color-changing mode, each atmosphere lamp outputs a modulation signal corresponding to the current color and/or brightness from the controller based on a preset rule of the autonomous color-changing mode, the corresponding atmosphere lamp emits light of the current color and/or brightness based on the modulation signal corresponding to the current color and/or brightness, and each atmosphere lamp obtains a frame count value by counting the received LIN frame data from the controller to time the duration of the current color and/or brightness, When the duration of the current color and/or brightness reaches a preset duration threshold, each atmosphere lamp outputs a new modulation signal corresponding to the current color and/or brightness based on a preset rule of the autonomous color-changing mode from the controller, and each atmosphere lamp obtains a frame count value by counting the received LIN frame data from the controller so as to time the duration of the new current color and/or brightness.
2. The ambient light control system of claim 1 wherein the frame count value indicates a duration of a current color and/or brightness, Each atmosphere lamp counts the received LIN frame data from the initial value by the controller, And when the frame count value reaches a preset value, the duration time of the current color and/or brightness reaches a preset duration time threshold value.
3. The ambient light control system of claim 1, wherein, And when the duration of the current color and/or brightness reaches a preset duration threshold value, each atmosphere lamp sets the color-changing mark to be effective, so that each atmosphere lamp outputs a new modulation signal corresponding to the current color and/or brightness based on a preset rule of the autonomous color-changing mode when the color-changing mark is set to be effective.
4. The ambient light control system of claim 1, wherein the master controller periodically transmits LIN frame data to each LIN bus based on a predetermined schedule, Each atmosphere lamp comprises a red LED lamp, a green LED lamp and a blue LED lamp, the modulation signals comprise PWM modulation signals of preset duty ratios of each of the red LED lamp, the green LED lamp and the blue LED lamp, and the light of the current color and/or brightness is emitted by the atmosphere lamp through setting the duty ratios of each of the red LED lamp, the green LED lamp and the blue LED lamp.
5. The atmosphere lamp control system according to claim 1, wherein each atmosphere lamp slave controller, upon recognizing a predetermined field of LIN frame data from the received message, increments a current frame count value by 1.
6. The ambient light control system of claim 5, wherein the predetermined field is one of a Break, a sync segment, a PID, a check segment, a specified data segment, a header, a specified address signal segment.
7. An atmosphere lamp control assembly, characterized in that it comprises: One or more atmosphere lamp slave controllers, wherein each atmosphere lamp slave controller is connected with a corresponding one of the LIN buses; one or more atmosphere lamps, wherein each atmosphere lamp is connected with a corresponding one of the atmosphere lamps from the controller; Wherein the atmosphere lamp receives part or all of each LIN frame data uploaded by the corresponding LIN bus from the controller, When the LIN frame data comprises an autonomous color-changing mode triggering instruction, each atmosphere lamp enters an autonomous color-changing mode from a controller, In the autonomous color-changing mode, each atmosphere lamp outputs a modulation signal corresponding to the current color and/or brightness from the controller based on a preset rule of the autonomous color-changing mode, the corresponding atmosphere lamp emits light of the current color and/or brightness based on the modulation signal corresponding to the current color and/or brightness, and each atmosphere lamp obtains a frame count value by counting the received LIN frame data from the controller to time the duration of the current color and/or brightness, When the duration of the current color and/or brightness reaches a preset duration threshold, each atmosphere lamp outputs a new modulation signal corresponding to the current color and/or brightness based on a preset rule of the autonomous color-changing mode from the controller, and each atmosphere lamp obtains a frame count value by counting the received LIN frame data from the controller so as to time the duration of the new current color and/or brightness.
8. The ambient light control assembly of claim 7 wherein the frame count value indicates a duration of a current color and/or intensity, Each atmosphere lamp counts the received LIN frame data from the initial value by the controller, When the frame count value reaches a predetermined value, the duration of the current color and/or brightness reaches a predetermined duration threshold, And when the duration of the current color and/or brightness reaches a preset duration threshold value, each atmosphere lamp sets the color-changing mark to be effective, so that each atmosphere lamp outputs a new modulation signal corresponding to the current color and/or brightness based on a preset rule of the autonomous color-changing mode when the color-changing mark is set to be effective.
9. A control method based on an atmosphere lamp control system according to claims 1-6, characterized in that it comprises: The atmosphere lamp receives part or all of each LIN frame data transmitted from the corresponding LIN bus from the controller, wherein the main controller periodically transmits the LIN frame data to each LIN bus; When the LIN frame data comprises an autonomous color-changing mode triggering instruction, each atmosphere lamp enters an autonomous color-changing mode from a controller; In the autonomous color-changing mode, each atmosphere lamp outputs a modulation signal corresponding to the current color and/or brightness from the controller based on a preset rule of the autonomous color-changing mode, the corresponding atmosphere lamp emits light of the current color and/or brightness based on the modulation signal corresponding to the current color and/or brightness, and each atmosphere lamp obtains a frame count value by counting the received LIN frame data from the controller to time the duration of the current color and/or brightness, When the duration of the current color and/or brightness reaches a preset duration threshold, each atmosphere lamp outputs a new modulation signal corresponding to the current color and/or brightness based on a preset rule of the autonomous color-changing mode from the controller, and each atmosphere lamp obtains a frame count value by counting the received LIN frame data from the controller so as to time the duration of the new current color and/or brightness.

Description

Atmosphere lamp control system, assembly and control method thereof Technical Field The invention relates to the technical field of atmosphere lamp control, in particular to an atmosphere lamp control system, an atmosphere lamp control assembly and a control method of the atmosphere lamp control system. Background Currently, a LIN (Local Interconnect Network) bus is commonly used for communication in an automotive interior atmosphere lamp system. The LIN bus is widely used in vehicle body control networks because of its low implementation cost (usually, a chip serial port can be modified into a LIN transceiver). The Master node (Master) of the LIN (Local Interconnect Network) communication network may be the body controller BCM or Gateway and the Slave node (Slave) of the LIN communication network may be the atmosphere lamp Slave, the seat Slave. The master node and the slave nodes form the LIN communication network. The central console, left side and right side of the automobile are generally divided into different LIN buses, and the master node sends messages to different LIN buses based on the same schedule in order to reduce implementation complexity. There may be multiple slave atmosphere lamp controllers on each LIN bus to which the slave atmosphere lamp controllers are connected. The instruction must be sent at the master node in accordance with a Schedule Table (fig. 2) specifying a Sequence (Message Sequence), a specified interval (Slot Time). If the signal is unchanged, the repeated instruction is still sent, and is executed to the bottom of the schedule table and then is executed from the beginning. In order to ensure the consistency of the color switching of the atmosphere lamp of the whole vehicle, the master node is generally designed to (1) send messages with small intervals (usually tens of milliseconds), and (2) send addressing signals of the messages to select a plurality of slave nodes to receive commands at a time. The slave node has to receive each serial port data without extra protocol chips, splice a complete LIN Frame (LIN Frame) through a protocol stack, identify the content of each data segment in the LIN Frame, then execute operation according to each signal in the LIN Frame or do not meet addressing to discard the LIN Frame, and (3) the whole vehicle factory has a reservation function on the requirements of vehicle-mounted color atmosphere lamps, wherein one of the vehicle-mounted color atmosphere lamps is an autonomous color-changing mode (showroom mode), the master node sends an autonomous color-changing trigger signal, and then the atmosphere lamp slave controller of the slave node realizes gradual smooth switching of autonomous colors (and brightness) under an internal appointed color list. However, at present, no existing scheme for enabling an autonomous color-changing mode by a host factory exists, because the host node only sends a trigger signal of "mode change", when the slave node of the atmosphere lamp runs the colors in the internal designated color list, the master frequencies of different chips have small differences, so that the overflow time of the timer also has small differences, and the colors of the interior decorative lamps of the whole automobile cannot be unified after a plurality of internal designated color lists are run. Taking fig. 3 as an example, assuming that 10 seconds are expected to be required for performing the 10-color conversion, 10.001 seconds are actually used for the atmosphere lamp slave node 1 to run through the entire internal specified color list, 9.999 seconds are required for the atmosphere lamp slave node 2 to perform the entire internal specified color list, the duration of the atmosphere lamp slave node 1 is delayed by the atmosphere lamp slave node 2 after 500 times of executionWill approach the duration of one color, and will necessarily have a sense of discomfort. In addition, the host factory can change the master node so that the master node transmits the color and brightness at each moment to the atmosphere lamp slave node through the LIN bus, and the effect of synchronizing colors can be achieved. However, the master node is a key component of the whole vehicle, and modifying the components involves a lot of processes and requires reworking a lot of tests, which requires a lot of time and test cost. Therefore, a new solution is needed to solve the above problems. Disclosure of Invention One of the purposes of the invention is to provide an atmosphere lamp control system, an atmosphere lamp control assembly and a control method of atmosphere lamp control, which can realize the color and brightness synchronization of a plurality of atmosphere lamps in an LIN communication network during autonomous color change through simple modification. According to one aspect of the invention, an atmosphere lamp control system is provided, which comprises a main controller, one or more atmosphere lamp slave controllers, one or more atmosp