CN114043928B - Floor lamp control system and control method thereof - Google Patents
Floor lamp control system and control method thereof Download PDFInfo
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- CN114043928B CN114043928B CN202111588115.3A CN202111588115A CN114043928B CN 114043928 B CN114043928 B CN 114043928B CN 202111588115 A CN202111588115 A CN 202111588115A CN 114043928 B CN114043928 B CN 114043928B
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- 238000005034 decoration Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a floor lamp control system and a control method thereof, wherein the floor lamp control system comprises a sensing unit, a control unit and an execution unit, the sensing unit is connected with the input end of the control unit through a CAN bus, and the output end of the control unit is connected with the execution unit; the control unit comprises a CAN transceiver, an MCU processing unit, a LIN transceiver, an LED driving chip and a motor driving chip, wherein the sensing unit is connected with the input end of the CAN transceiver through a CAN bus, the output end of the CAN transceiver is connected with the MCU processing unit, the input end of the LED driving chip is connected with the MCU processing unit through an SPI bus, and the input end of the LIN transceiver is connected with the MCU processing unit through a LIN bus. The invention provides a floor lamp control system and a control method thereof, which are used for carrying out floor projection in different modes when a vehicle is in a whistle mode, a steering mode and a parking door opening mode, and warning pedestrians and traveling vehicles around the vehicle.
Description
Technical Field
The invention relates to a floor lamp control system and a control method thereof, belonging to the field of car lamp control.
Background
At present, the popularity of automobiles is higher and higher, people are also more and more interested in lamp decoration of the automobile, wherein the most interesting mode is to illuminate the floor lamp. At present, an automobile is generally provided with a floor lamp, and the effect of welcoming is achieved by lighting a light pattern on the ground. However, most of the existing schemes are only applied to the welcome function, namely, the car owners are identified through the intelligent key, when the car owners approach, the floor lamp is turned on in advance, the effect of welcome is achieved, and the application scene is narrow.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a floor lamp control system and a control method thereof, wherein when a vehicle is in a sentinel mode, a steering mode and a parking door opening mode, floor projection in different modes is carried out to warn pedestrians and travelling vehicles around the vehicle.
In order to solve the technical problems, the technical scheme of the invention is as follows:
The floor lamp control system comprises a sensing unit, a control unit and an execution unit, wherein the sensing unit is connected with the input end of the control unit through a CAN bus, and the output end of the control unit is connected with the execution unit;
The control unit comprises a CAN transceiver, an MCU processing unit, a LIN transceiver, an LED driving chip and a motor driving chip, wherein the sensing unit is connected with the input end of the CAN transceiver through a CAN bus, the output end of the CAN transceiver is connected with the MCU processing unit, the input end of the LED driving chip is connected with the MCU processing unit through an SPI bus, the input end of the LIN transceiver is connected with the MCU processing unit through a LIN bus, and the output end of the LIN transceiver is connected with the input end of the motor driving chip;
The execution unit comprises a projection LED lamp group and a lamp cap stepping motor, wherein the input end of the projection LED lamp group is connected with the output end of the LED driving chip, the input end of the lamp cap stepping motor is connected with the output end of the motor driving chip, the output end of the lamp cap stepping motor is connected with the projection LED lamp group, and the lamp cap stepping motor is used for driving the projection LED lamp group to rotate.
Further, the sensing unit comprises a millimeter wave radar sensing module and a BCM, wherein the output end of the millimeter wave radar sensing module and the output end of the BCM are respectively connected with the input end of the CAN transceiver through a CAN bus.
Further, the LED driving chip is provided with a left group and a right group, the projection LED lamp group is provided with a left group and a right group, and the two groups of projection LED lamp groups are respectively arranged below the left rearview mirror and the right rearview mirror.
Further, the motor driving chip is provided with a left lamp holder stepping motor and a right lamp holder stepping motor, and the two lamp holder stepping motors are respectively arranged in the left rearview mirror and the right rearview mirror.
A control method of a floor lamp control system, comprising:
step S1, the floor lamp control system presets three control modes of a vehicle, wherein the three control modes comprise a sentinel mode, a steering mode and a parking door opening mode;
Step S2, the floor lamp control system judges which control mode the vehicle is currently in, and correspondingly controls the projection LED lamp group:
judging whether the vehicle is in a parking locking state, if so, continuously judging whether the vehicle is in a sentry mode currently, and if so, entering a step S3;
if the vehicle is not in the sentinel mode, judging whether the vehicle is in a parking door opening mode, and if the vehicle is in the parking door opening mode, entering a step S4;
if the vehicle is not in the sentry mode or the parking door opening mode, judging whether the vehicle is in the steering mode or not according to whether the steering lamp is turned on or not and whether the steering wheel rotation angle exceeds a threshold value, and if the vehicle is in the steering mode, entering step S5;
Step S3, when a target object is close to a vehicle, if the millimeter wave radar sensing module identifies the target object, the MCU processing unit in the control unit sends a control command to the lamp cap stepping motor according to the position information of the target object sent by the millimeter wave radar sensing module, the projection position of the projection LED lamp group is adjusted in the Y direction of the vehicle in real time, the projection LED lamp group is lightened until no target object exists in the identification range of the millimeter wave radar sensing module, the whistle mode is ended, and the projection LED lamp group returns to the initial projection position Y0;
Step S4, judging whether a rear side door of the vehicle is opened or not, if the rear side door is opened, transmitting a lamp cap stepping motor control command by an MCU processing unit in the control unit, controlling a projection LED lamp group at the door opening side to rotate to a corresponding door opening projection position y3 by the lamp cap stepping motor, and lighting the projection LED lamp group at the door opening side; if the rear side door of the vehicle is not opened, the projection LED lamp group is extinguished and restored to the initial projection position y0, whether the vehicle is in a steering mode is judged, and if the vehicle is in the steering mode, step S5 is entered;
Then judging whether a front side door of the vehicle is opened, if the front side door is opened, transmitting a lamp cap stepping motor control command by an MCU processing unit in the control unit, controlling a projection LED lamp group at the door opening side to rotate to a corresponding door opening projection position y2 by the lamp cap stepping motor, and lighting the projection LED lamp group at the door opening side; if the front side door of the vehicle is not opened, the projection LED lamp group is extinguished and restored to the initial projection position y0, whether the vehicle is in a steering mode is judged, and if the vehicle is in the steering mode, step S5 is entered;
And S5, when the vehicle turns to one side, the MCU processing unit in the control unit sends a lamp cap stepping motor control command, the lamp cap stepping motor on one side of the vehicle controls the projection LED lamp group on the side to rotate to the position of the turning projection position y1, the projection LED lamp group on the side is lightened, and after the turning is finished, the lamp cap stepping motor on the side is restored to the initial projection position y0.
Further, the target in the step S3 is a non-owner or other vehicles.
Further, in step S4, when two doors on the vehicle door opening side are simultaneously opened, the MCU processing unit in the control unit sends a lamp cap stepper motor control command, and after the lamp cap stepper motor controls the projection LED lamp set on the door opening side to rotate to the door opening projection position y3, the projection LED lamp set is activated.
Further, the door opening projection position y2 is a front door position on the vehicle door opening side, and the door opening projection position y3 is a rear door position on the vehicle door opening side.
Further, the priority of the parking and door opening mode is higher than the priority of the sentinel mode and the steering mode.
By adopting the technical scheme, after the vehicle owner sets the sentry mode and locks the vehicle, when non-vehicle owners or other vehicles are within 1-2 meters away from the periphery of the vehicle, the floor lamp function is activated, and the projection LED lamp group can project warning patterns within the left-right range of the vehicle. Meanwhile, when the vehicle runs and turns, the projection LED lamp group can automatically project a turning mark in front of the turning side of the vehicle, so that the effect of reminding an electric vehicle or a pedestrian is achieved. Further, when the vehicle is parked and the door is opened, the projection LED lamp set can project warning icons in the range of the corresponding vehicle door to remind other traffic participants so as to prevent injury accidents to others caused by sudden opening of the vehicle door.
Drawings
FIG. 1 is a system architecture diagram of a floor lamp control system of the present invention;
FIG. 2 is a schematic view of a projection position of a projection LED lamp set according to the present invention;
Fig. 3 is a logic flow diagram of a control method of a floor lamp control system according to the present invention.
Detailed Description
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example 1
As shown in fig. 1, the present embodiment provides a control system for a floor lamp, which includes a sensing unit, a control unit and an execution unit, where the sensing unit is connected to an input end of the control unit through a CAN bus, and an output end of the control unit is connected to the execution unit.
The control unit comprises a CAN transceiver, an MCU processing unit, a LIN transceiver, an LED driving chip and a motor driving chip.
The sensing unit is connected with the input end of the CAN transceiver through the CAN bus, and the output end of the CAN transceiver is connected with the MCU processing unit.
The input end of the LED driving chip is connected with the MCU processing unit through the SPI bus, and the MCU processing unit realizes the brightness and the on-off control of the projection LED lamp group through the LED driving chip. The input end of the LIN transceiver is connected with the MCU processing unit through the LIN bus, the output end of the LIN transceiver is connected with the input end of the motor driving chip, and the MCU processing unit is connected with the motor driving chip through the LIN bus and is used for sending motor control commands and receiving motor feedback information.
The sensing unit comprises a millimeter wave radar sensing module and a BCM, and the output end of the millimeter wave radar sensing module and the output end of the BCM are respectively connected with the input end of the CAN transceiver through a CAN bus. The millimeter wave radar sensing module is used for sensing whether non-owner personnel or other vehicles exist around the vehicle, and the body BCM is used for sending vehicle turn light signals, steering wheel corner signals and vehicle door state information to the control unit.
The execution unit comprises a projection LED lamp group and a lamp cap stepping motor, wherein the input end of the projection LED lamp group is connected with the output end of the LED driving chip, the input end of the lamp cap stepping motor is connected with the output end of the motor driving chip, the output end of the lamp cap stepping motor is connected with the projection LED lamp group, and the lamp cap stepping motor is used for driving the projection LED lamp group to rotate.
The LED driving chip in the embodiment is provided with a left group and a right group, the projection LED lamp groups are provided with a left group and a right group, and the two groups of projection LED lamp groups are respectively arranged below the left rearview mirror and the right rearview mirror.
The motor drive chip in this embodiment is provided with two about, and lamp holder step motor is provided with two about, and two lamp holder step motors are installed respectively in controlling the rear-view mirror.
The working principle of the floor lamp control system is as follows:
During running of the vehicle, such as turning, the control unit acquires a vehicle turn signal and a steering wheel angle signal through the BCM so as to judge whether the vehicle is in a turning condition. When the system judges that the vehicle is in a turning working condition, the control unit of the system controls the projection lamp set and the motor to project a turning mark in front of the turning side of the vehicle so as to play a role in reminding the electric vehicle or the pedestrian.
When the vehicle is parked and the door is opened, the control unit CAN acquire the door state information sent by the BCM through the CAN bus when the corresponding side door is opened. When the car door is opened, the floor lamp can project a reminding icon on the side of the car door corresponding to the opening, so that other traffic participants are reminded, and the injury accident to other people caused by sudden opening of the car door is prevented.
In addition, when the system is in a sentinel mode, the running position of the motor is adjusted in real time according to the positions of people and vehicles sent by the millimeter wave sensing module; in the steering mode and the parking and door opening mode, the operation of the lamp cap stepping motor is executed according to the preset value stored in the MCU processing unit in advance.
Example two
As shown in fig. 3, the present embodiment provides a control method of a floor lamp control system, which includes:
S1, presetting three control modes of a vehicle by a floor lamp control system, wherein the three control modes comprise a sentinel mode, a steering mode and a parking door opening mode. As shown in fig. 2, the initial projection position of the projection LED lamp set in the sentinel mode is set to be y0; the projection LED lamp group runs to a preset position Y1 along the Y direction in a steering mode; and in the parking door opening mode, the projection position of the front door of the projection LED lamp group on the vehicle door opening side is y2, and the projection position of the rear door is y3.
Step S2, the floor lamp control system judges which control mode the vehicle is currently in, and correspondingly controls the projection LED lamp group:
judging whether the vehicle is in a parking locking state, if so, continuously judging whether the vehicle is in a sentry mode currently, and if so, entering a step S3;
if the vehicle is not in the sentinel mode, judging whether the vehicle is in a parking door opening mode, and if the vehicle is in the parking door opening mode, entering a step S4;
If the vehicle is not in the sentinel mode or the parking door opening mode, whether the vehicle is in the steering mode is judged by whether the steering lamp is turned on or not and whether the steering wheel rotation angle exceeds a threshold value, and if the vehicle is in the steering mode, the step S5 is entered.
And S3, when the target object is close to the vehicle, if the millimeter wave radar sensing module identifies the target object, the MCU processing unit in the control unit sends a control command to the lamp cap stepping motor according to the position information of the target object sent by the millimeter wave radar sensing module, the projection position of the projection LED lamp group is adjusted in the Y direction of the vehicle in real time, the projection LED lamp group is lightened until no target object exists in the identification range of the millimeter wave radar sensing module, the whistle mode is ended, and the projection LED lamp group returns to the initial projection position Y0.
Step S4, judging whether a rear side door of the vehicle is opened or not, if the rear side door is opened, transmitting a lamp cap stepping motor control command by an MCU (micro control unit) in the control unit, controlling a projection LED lamp group at the door opening side to rotate to a corresponding door opening projection position y3 by the lamp cap stepping motor, and lighting the projection LED lamp group at the door opening side; if the rear side door of the vehicle is not opened, the projection LED lamp group is extinguished and restored to the initial projection position y0, whether the vehicle is in a steering mode is judged, and if the vehicle is in the steering mode, step S5 is entered;
Then judging whether a front side door of the vehicle is opened, if the front side door is opened, transmitting a lamp cap stepping motor control command by an MCU processing unit in the control unit, controlling a projection LED lamp group at the door opening side to rotate to a corresponding door opening projection position y2 by the lamp cap stepping motor, and lighting the projection LED lamp group at the door opening side; if the front side door of the vehicle is not opened, the projection LED lamp group is extinguished and restored to the initial projection position y0, whether the vehicle is in a steering mode is judged, and if the vehicle is in the steering mode, step S5 is entered;
When the front door and the rear door of the vehicle are simultaneously opened, the MCU processing unit in the control unit sends a lamp cap stepping motor control command, and the lamp cap stepping motor controls the projection LED lamp group on the door opening side to rotate to the door opening projection position y3, and then the projection LED lamp group on the door opening side is lightened.
And S5, when the vehicle turns to one side, the MCU processing unit in the control unit sends a lamp cap stepping motor control command, the lamp cap stepping motor on one side of the vehicle controls the projection LED lamp group on the side to rotate to the position of the turning projection position y1, the projection LED lamp group on the side is lightened, and after the turning is finished, the lamp cap stepping motor on the side is restored to the initial projection position y0.
The target object in this embodiment is a non-owner or other vehicle.
The priority of the parking and door opening mode in this embodiment is higher than the priority of the sentinel mode and the steering mode, that is, when the steering lamp is in the on state and the vehicle door is opened, the control unit executes the related control command of the parking and door opening mode. The mode is suitable for driving the double-jump lamp when the vehicle stops at the side, and passengers get off the vehicle.
The technical problems, technical solutions and advantageous effects solved by the present invention have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of protection of the present invention.
Claims (6)
1. A floor lamp control system, characterized in that: the intelligent control system comprises a sensing unit, a control unit and an execution unit, wherein the sensing unit is connected with the input end of the control unit through a CAN bus, and the output end of the control unit is connected with the execution unit;
The control unit comprises a CAN transceiver, an MCU processing unit, a LIN transceiver, an LED driving chip and a motor driving chip, wherein the sensing unit is connected with the input end of the CAN transceiver through a CAN bus, the output end of the CAN transceiver is connected with the MCU processing unit, the input end of the LED driving chip is connected with the MCU processing unit through an SPI bus, the input end of the LIN transceiver is connected with the MCU processing unit through a LIN bus, and the output end of the LIN transceiver is connected with the input end of the motor driving chip;
The execution unit comprises a projection LED lamp group and a lamp cap stepping motor, wherein the input end of the projection LED lamp group is connected with the output end of the LED driving chip, the input end of the lamp cap stepping motor is connected with the output end of the motor driving chip, the output end of the lamp cap stepping motor is connected with the projection LED lamp group, and the lamp cap stepping motor is used for driving the projection LED lamp group to rotate;
The sensing unit comprises a millimeter wave radar sensing module and a BCM, wherein the output end of the millimeter wave radar sensing module and the output end of the BCM are respectively connected with the input end of the CAN transceiver through a CAN bus;
the LED driving chip is provided with a left group and a right group, the projection LED lamp groups are provided with a left group and a right group, and the two groups of projection LED lamp groups are respectively arranged below the left rearview mirror and the right rearview mirror;
the control method of the floor lamp control system comprises the following steps:
step S1, the floor lamp control system presets three control modes of a vehicle, wherein the three control modes comprise a sentinel mode, a steering mode and a parking door opening mode;
Step S2, the floor lamp control system judges which control mode the vehicle is currently in, and correspondingly controls the projection LED lamp group:
judging whether the vehicle is in a parking locking state, if so, continuously judging whether the vehicle is in a sentry mode currently, and if so, entering a step S3;
if the vehicle is not in the sentinel mode, judging whether the vehicle is in a parking door opening mode, and if the vehicle is in the parking door opening mode, entering a step S4;
if the vehicle is not in the sentry mode or the parking door opening mode, judging whether the vehicle is in the steering mode or not according to whether the steering lamp is turned on or not and whether the steering wheel rotation angle exceeds a threshold value, and if the vehicle is in the steering mode, entering step S5;
Step S3, when a target object is close to a vehicle, if the millimeter wave radar sensing module identifies the target object, the MCU processing unit in the control unit sends a control command to the lamp cap stepping motor according to the position information of the target object sent by the millimeter wave radar sensing module, the projection position of the projection LED lamp group is adjusted in the Y direction of the vehicle in real time, the projection LED lamp group is lightened until no target object exists in the identification range of the millimeter wave radar sensing module, the whistle mode is ended, and the projection LED lamp group returns to the initial projection position Y0;
Step S4, judging whether a rear side door of the vehicle is opened or not, if the rear side door is opened, transmitting a lamp cap stepping motor control command by an MCU processing unit in the control unit, controlling a projection LED lamp group at the door opening side to rotate to a corresponding door opening projection position y3 by the lamp cap stepping motor, and lighting the projection LED lamp group at the door opening side; if the rear side door of the vehicle is not opened, the projection LED lamp group is extinguished and restored to the initial projection position y0, whether the vehicle is in a steering mode is judged, and if the vehicle is in the steering mode, step S5 is entered;
Then judging whether a front side door of the vehicle is opened, if the front side door is opened, transmitting a lamp cap stepping motor control command by an MCU processing unit in the control unit, controlling a projection LED lamp group at the door opening side to rotate to a corresponding door opening projection position y2 by the lamp cap stepping motor, and lighting the projection LED lamp group at the door opening side; if the front side door of the vehicle is not opened, the projection LED lamp group is extinguished and restored to the initial projection position y0, whether the vehicle is in a steering mode is judged, and if the vehicle is in the steering mode, step S5 is entered;
And S5, when the vehicle turns to one side, the MCU processing unit in the control unit sends a lamp cap stepping motor control command, the lamp cap stepping motor on one side of the vehicle controls the projection LED lamp group on the side to rotate to the position of the turning projection position y1, the projection LED lamp group on the side is lightened, and after the turning is finished, the lamp cap stepping motor on the side is restored to the initial projection position y0.
2. A floor lamp control system as claimed in claim 1, wherein: the motor driving chip is provided with a left lamp holder stepping motor and a right lamp holder stepping motor, and the two lamp holder stepping motors are respectively arranged in the left rearview mirror and the right rearview mirror.
3. A floor lamp control system as claimed in claim 1, wherein: the target in the step S3 is a non-owner or other vehicles.
4. A floor lamp control system as claimed in claim 1, wherein: in the step S4, when two doors on the vehicle door opening side are simultaneously opened, the MCU processing unit in the control unit sends a lamp cap stepping motor control command, and the lamp cap stepping motor controls the projection LED lamp set on the door opening side to rotate to the door opening projection position y3, and then activates the projection LED lamp set.
5. A floor lamp control system as claimed in claim 1, wherein: the door opening projection position y2 is a front door position of the vehicle door opening side, and the door opening projection position y3 is a rear door position of the vehicle door opening side.
6. A floor lamp control system as claimed in claim 1, wherein: the priority of the parking door opening mode is higher than the priority of the sentinel mode and the steering mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588115.3A CN114043928B (en) | 2021-12-23 | 2021-12-23 | Floor lamp control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588115.3A CN114043928B (en) | 2021-12-23 | 2021-12-23 | Floor lamp control system and control method thereof |
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| CN114043928A CN114043928A (en) | 2022-02-15 |
| CN114043928B true CN114043928B (en) | 2024-05-14 |
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| JP2008143505A (en) * | 2006-11-16 | 2008-06-26 | Denso Corp | Headlight control device |
| CN110816395A (en) * | 2019-11-19 | 2020-02-21 | 上汽大众汽车有限公司 | Folding type hidden floor illuminating lamp |
| KR102130627B1 (en) * | 2020-03-04 | 2020-07-06 | 주식회사 대영아이디에스 | Night parking lighting device for car and its lighting method |
| CN111409544A (en) * | 2020-06-05 | 2020-07-14 | 常州富通光电科技有限公司 | Automobile rear tail lamp control system with dynamic self-adaption and welcome delay functions |
| CN216268952U (en) * | 2021-12-23 | 2022-04-12 | 常州星宇车灯股份有限公司 | Control system of floor lamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6106233B2 (en) * | 2015-09-08 | 2017-03-29 | 株式会社東海理化電機製作所 | Vehicle visual recognition device |
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2021
- 2021-12-23 CN CN202111588115.3A patent/CN114043928B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008143505A (en) * | 2006-11-16 | 2008-06-26 | Denso Corp | Headlight control device |
| CN110816395A (en) * | 2019-11-19 | 2020-02-21 | 上汽大众汽车有限公司 | Folding type hidden floor illuminating lamp |
| KR102130627B1 (en) * | 2020-03-04 | 2020-07-06 | 주식회사 대영아이디에스 | Night parking lighting device for car and its lighting method |
| CN111409544A (en) * | 2020-06-05 | 2020-07-14 | 常州富通光电科技有限公司 | Automobile rear tail lamp control system with dynamic self-adaption and welcome delay functions |
| CN216268952U (en) * | 2021-12-23 | 2022-04-12 | 常州星宇车灯股份有限公司 | Control system of floor lamp |
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