CN111479373B - Multi-path holder synchronous rotation control system of automobile working lamp - Google Patents

Multi-path holder synchronous rotation control system of automobile working lamp Download PDF

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Publication number
CN111479373B
CN111479373B CN202010414031.7A CN202010414031A CN111479373B CN 111479373 B CN111479373 B CN 111479373B CN 202010414031 A CN202010414031 A CN 202010414031A CN 111479373 B CN111479373 B CN 111479373B
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bus
holder
main control
power
control board
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CN111479373A (en
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吕国华
杨文攀
蒋志达
蒋润华
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Guangzhou Chaoliang Electronic Technology Co ltd
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Guangzhou Chaoliang Electronic Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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Abstract

The invention discloses a multi-path holder synchronous rotation control system of an automobile working lamp, which comprises: the system comprises a main control board, a holder driving board, a power bus, a CAN bus and a wireless remote controller; the main control board is connected with the holder drive board and the wireless remote controller, supplies a power bus and a CAN bus network to the holder drive board, and receives an operation signal of the wireless remote controller; the holder driving plate drives the holder azimuth and the pitching motor to rotate horizontally and pitch vertically; the power supply bus and the CAN bus are used for power supply connection and CAN network electrical connection between the storage battery and the main control board, between the main control board and the holder drive board and between the holder drive board; the wireless remote controller sends a holder operation signal, the main control board receives the operation signal, and after data analysis and processing, the operation signal is communicated with the multi-path holder drive board on the CAN bus network in a conversation mode, so that the multi-path cloud platforms are driven to rotate in the horizontal direction and pitch in the vertical direction synchronously to move to a required direction angle, and the consistency of the multi-path cloud platforms is ensured.

Description

Multi-path holder synchronous rotation control system of automobile working lamp
Technical Field
The invention belongs to the technical field of holders of automobile working lamps, and particularly relates to a multi-path holder synchronous rotation control system of an automobile working lamp.
Background
At present, the automobile working lamp is fixed below a lamp body through a mounting bracket, and the automobile working lamps of some manufacturers do not have adjusting mechanisms for adjusting direction and angle, so that the illumination using effect of the working lamp cannot meet the requirements of different illumination scenes of automobiles; sometimes, some manufacturers make some improvements on the lamp body of the working lamp of the automobile, and add an adjustable rotating mechanism for adjusting the angle of the working lamp in the horizontal direction and the vertical direction.
For example: patent document "ZL201921023949.8" has proposed "a multi-direction angularly adjustable car work light", through install adjustable rotary mechanism on the lamp body, does not borrow the multi-direction angular adjustment that any instrument can realize the lamp body, easy operation facilitates the use, and its main technical scheme is: comprises a lamp body, an adjustable rotating mechanism, a rotating shaft, a locking part, a fixing part and the like; the lamp body is provided with a fixed groove and a cavity, and the fixed groove and the cavity are positioned at two sides of the lamp body; the adjustable rotating mechanism is inserted into the fixing groove, and the locking piece is connected with the lamp body and the adjustable rotating mechanism; the fixing piece is arranged on the lamp body and positioned in the fixing groove; the adjustable rotating mechanism is provided with an arc-shaped limiting hole; the rotating shaft is horizontally arranged, one end of the rotating shaft is connected with the fixing piece, and the other end of the rotating shaft is connected with the adjustable rotating mechanism; the angle of the working lamp in multiple directions can be adjusted by adjusting the adjustable rotating mechanism below the lamp body.
But the technical scheme has the following defects: the adjustable rotating mechanism of the automobile working lamp needs to be adjusted to a certain fixed position in a factory and locked, so that the consistency of the direction and the angle of at least two automobile working lamps can be ensured, if the automobile needs to adjust the angle of the automobile working lamp in a certain direction under different lighting scenes, the adjustable rotating mechanism of the automobile working lamp often needs to be readjusted to a proper direction angle, because at least two working lamps are installed on the automobile, the multiple adjustable rotating mechanisms need to be adjusted manually and repeatedly compared, the task is complex, the consistency of the direction angles of the adjustable rotating mechanisms of the two working lamps is difficult to ensure, and finally the requirements of different lighting scenes of the automobile are difficult to meet.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention aims to provide a multi-channel cradle head synchronous rotation control system for an automobile working lamp, wherein the automobile working lamp is mounted on a cradle head, a cradle head driving board is controlled through a wireless remote controller, and the internal directions and pitching motors of the multi-channel cradle head are driven to rotate along the horizontal direction and perform pitching motion along the vertical direction, so as to solve the problems of direction angle and consistency of control and adjustment of the automobile working lamp in different lighting scenes.
According to one aspect of the invention, a multi-path holder synchronous rotation control system of an automobile working lamp is provided, which comprises a main control board, a plurality of holder driving boards, a power bus, a CAN bus and a wireless remote controller; the main control board is electrically connected with the vehicle-mounted storage battery through a power bus, is electrically connected with the holder drive plate through the power bus, and is also electrically connected with the holder drive plates through a CAN bus. The main control board is provided with a central processing unit, the central processing unit receives an operation signal sent by the wireless remote controller, and after data analysis and processing, the analyzed and processed signal is communicated with the plurality of holder drive plates in a session mode on the CAN network, so that the plurality of holder drive plates respectively drive the plurality of paths of cloud platforms to rotate along the horizontal direction and synchronously move in the pitching direction along the vertical direction to a required direction angle, and the consistency of the cloud platforms is ensured.
In some embodiments, the wireless remote controller is provided with a power switch, a stop button, an upper operation button, a lower operation button, a left operation button and a right operation button, when the wireless remote controller is powered on, the wireless remote controller selects to continuously press any one of the upper operation button, the lower operation button, the left operation button and the right operation button, generates a corresponding operation signal and sends the operation signal to the wireless receiver on the central processing unit, and after receiving the operation signal, the wireless receiver sends the operation signal to the central processing unit
In some embodiments, the wireless remote controller is provided with a power switch, a stop button, an upper operation button, a lower operation button, a left operation button and a right operation button, when the wireless remote controller is powered on, the wireless remote controller selects to continuously press any one of the upper operation button, the lower operation button, the left operation button and the right operation button, generates a corresponding operation signal and sends the operation signal to the wireless receiver on the central processing unit, and the wireless receiver receives the operation signal and sends the operation signal to the central processing unit.
In some embodiments, the main control board further comprises a voltage conversion unit, the voltage conversion unit directly forms an electrical through loop from a power input I1 of the vehicle-mounted storage battery as a power bus output O1, the power bus output O1 is a power input of the cradle head driving board, the power input I1 also forms another electrical loop, the other parallel electrical loop is connected in parallel with the power bus output O1 and led out, and the other parallel electrical loop is converted into a working voltage +5V and GND required by the central processing unit after passing through a DC/DC isolation converter U6; the central processing unit comprises an MCU (microprogrammed control Unit) microprocessor U1, a CAN (controller area network) controller U2, an isolation CAN transceiver U3, an I/O (input/output) interface circuit U4 and a wireless receiver U5, the isolation CAN transceiver U3 converts the logic level of the CAN controller U2 into the differential level of a CAN bus, data are transmitted on two CAN bus cables with differential voltage, and the output of the two CAN buses is led to a port O2 for a holder driving plate to input the CAN bus; the I/O interface circuit U4 is a channel for controlling signal transmission between the MCU microprocessor U1 and peripheral circuits, and receives an operation signal from the wireless receiver U5; the wireless receiver U5 receives the operation signal I2 of the wireless remote controller.
In some embodiments, the wireless receiver U5 receives an operation signal I2 from a wireless remote controller, such as a pan/tilt power switch, a stop, a rotation in a horizontal direction, or a pitching motion in a vertical direction, and transmits the operation signal to the MCU microprocessor U1 through the I/O interface circuit U4; the MCU microprocessor U1 receives a wireless receiver operation signal from the I/O interface circuit U4, analyzes and processes data and then sends the data to the CAN controller U2; the CAN controller U2 receives data sent by the MCU microprocessor U1, processes the data and transmits the data to the isolation CAN transceiver U3, and meanwhile, the CAN controller U2 also receives the data received by the isolation CAN transceiver U3, processes the data and transmits the data to the MCU microprocessor U1; the MCU microprocessor U1, the CAN controller U2 and the isolation CAN transceiver U3 establish session type communication through a CAN bus, so that a multi-channel holder driving plate is controlled to drive the holder azimuth and the pitching motor to rotate along the horizontal direction and pitch along the vertical direction.
In some embodiments, the pan/tilt head drive plate comprises a voltage transformation and bus unit and a motor drive unit; the voltage conversion and bus unit takes the power output of the main control board as + VBAT and GND of the power input I3 of the holder driving board, and directly forms an electric straight-through loop to form a + VBAT and GND of the power bus led to the output end O3, and in addition, another electric loop is led out in parallel and is converted into the working voltage of the motor driving unit after passing through a DC/DC isolation converter U8; the CAN bus output of the main control board is used as the CAN bus input I3 CAN-H, CAN-L and PE of the holder driving board, and a CAN bus electric passage is directly formed and led to the CAN-H, CAN-L and PE of the output end O3; the motor driving unit comprises an MCU microprocessor U1, a CAN controller U2, an isolation CAN transceiver U3, a PWM controller U4, a PWM controller U5, an azimuth motor driver U6 and a pitching motor driver U7; the PWM controller U4 and the PWM controller U5 respectively provide pulse width modulation signals for the azimuth and pitch motor driver U6 and the motor driver U7; the azimuth motor driver U6 and the pitching motor driver U7 are both H-bridge power conversion circuits, a direct-current power supply is inverted into a square-wave power supply to be used by the azimuth or pitching motor O4 or O5, and the output voltages of the azimuth and pitching drivers U6 and U7 are respectively adjusted by adjusting the duty ratios of pulse width modulation signals of the PWM controllers U4 and U5, so that the rotation speed and the direction of the azimuth or pitching motor O4 or O5 are controlled.
In some embodiments, when the isolated CAN transceiver U3 receives the operation instruction data of the pan/tilt rotation and vertical pitch motion sent by the main control board through the CAN bus, the CAN controller receives the data of the isolated CAN transceiver and processes the data to transmit to the MCU microprocessor, and the MCU microprocessor, after data analysis and processing, switches on the PWM controller to drive the azimuth or pitch motor driver, thereby driving the azimuth or pitch motor to move according to the operation instruction.
In some embodiments, the power bus consists of two lines + VBAT and GND, the power input of which is from the on-board battery output I1; the power bus of the control system comprises three sections, wherein the first section is output to a main control board by a vehicle-mounted storage battery and input to I1, the second section is output to a tripod head drive board by a main control board power supply and input to I3, the third section is a connecting line between the power output end O3 of a first tripod head drive board and the power input end I3 of a next tripod head drive board, and the three sections of power connecting lines form series electrical connection; the CAN bus comprises a twisted pair CAN _ H with a shield, a CAN _ L and a PE, a shielding layer PE of the CAN bus is connected into a multipoint grounding mode, the CAN bus at least comprises two sections, the first section is from the output end O2 of the CAN bus of the main control board to the input end I3 of the CAN bus of the holder driving board, the second section is from the output end O3 of the CAN bus of one holder driving board to the input end I3 of the CAN bus of the next holder driving board, and two sections of CAN connecting wires form series electrical connection.
In some embodiments, a power output end + VBAT and GND from the vehicle-mounted storage battery are connected to a power input end + VBAT and GND of the main control board MCP through an electric direct-through loop, the main control board MCP is connected with the holder driving boards PAN1, PAN2, PANX and PAN8 and the wireless remote controller WRC, and is used for supplying power bus + VBAT and GND of the holder driving boards and CAN bus networks CAN-H, CAN-L and PE to receive operation signals of the wireless remote controller WRC; the power input end + VBAT and the GND of the PAN driving board PAN are led from the power output end + VBAT and the GND of the main control board MPC, and the CAN bus control signals CAN _ H and CAN _ L are led from CAN bus networks CAN-H, CAN-L and PE output by the main control board; and the power supply bus + VBAT, GND and CAN buses CAN-H, CAN-L and PE are used for power supply connection and CAN network electrical connection between the storage battery and the main control board MPC, between the main control board MPC and the PAN head drive board PAN, between the PAN head drive board PAN1 and PAN 2.
Through the implementation of the technical scheme, the multi-path holder synchronous rotation control system can achieve the following effects: firstly, the directions and the angles of a plurality of holders can be controlled and adjusted through the operation of a wireless remote controller, the consistency of the rotating directions and the angles of the working lamps on the holders is ensured, the use is simple and convenient, and the requirements of different lighting scenes of an automobile are met; secondly, a power bus and CAN bus control mode is adopted, the connection length is shortened, and the connection is convenient and rapid; and thirdly, the system is easy to expand and upgrade, and can be connected with a plurality of cloud platforms to mount the working lamp of the automobile at most under the condition that the capacity of the automobile storage battery allows.
Drawings
Fig. 1 is a block diagram of a multi-way pan-tilt synchronous rotation control system of an automobile working lamp according to an embodiment of the present invention;
fig. 2 is a functional layout diagram of a wireless remote controller in a multi-way pan/tilt/zoom synchronous rotation control system of an automotive working lamp according to an embodiment of the present invention.
Fig. 3 is a functional block diagram of a main control board in a multi-path pan-tilt synchronous rotation control system of an automobile work light according to an embodiment of the present invention;
fig. 4 is a functional block diagram of a pan/tilt drive board in the multi-way pan/tilt synchronous rotation control system of the automotive working lamp according to an embodiment of the present invention;
fig. 5 is a subsystem interconnection wiring diagram in the multi-way pan-tilt synchronous rotation control system of the automobile working lamp according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention discloses a multi-path holder synchronous rotation control system of an automobile working lamp, wherein the automobile working lamp is arranged on a holder, a holder driving plate is controlled through the operation of a wireless remote controller, the internal position of the multi-path holder and a pitching motor are driven to rotate along the horizontal direction and pitch along the vertical direction, and the problems of direction angle and consistency of the control and adjustment of the automobile working lamp under different lighting scenes are solved.
As shown in fig. 1 to fig. 5, in this embodiment, a multi-way pan-tilt synchronous rotation control system for an automobile working lamp includes a main control board, a pan-tilt driving board, a power bus, a CAN bus, and a wireless remote controller.
As shown in FIG. 1, in the present embodiment, the external power source is a vehicle-mounted storage battery (voltage 9-32V) as the power input of the control system to the main control board; the main control board is electrically connected with the holder drive board and supplies a power bus and a CAN bus network to the holder drive board, and the main control board CAN also receive an operation signal of a wireless remote controller; the power input of the holder driving board is led from a power bus output by the main control board, the control signal of the CAN bus is led from a CAN bus network output by the main control board, and the holder driving board drives the holder azimuth and the pitching motor to rotate along the horizontal direction and pitch along the vertical direction.
On the connection, the power supply bus and the CAN bus CAN be used for power supply connection and CAN network electrical connection between the storage battery and the main control board, between the main control board and the holder drive board, and between the holder drive boards; the wireless remote controller sends operation signals of horizontal rotation and vertical pitching motion of the holder;
after receiving the operation signal from the wireless remote controller, the main control board analyzes and processes the data of the central processing unit, and then communicates with the multi-path cloud platform driving board in a conversation mode on the CAN network, so that the multi-path cloud platform is driven to rotate along the horizontal direction and synchronously move in a pitching mode along the vertical direction to a required direction angle, and the consistency of the multi-path cloud platform is ensured.
As the cradle head is the prior art, the specific principle and structure of the cradle head are not repeated.
As shown in fig. 2, the wireless remote controller is provided with a power switch and a stop button, an upper operation button and a lower operation button for controlling pitching motion of the cradle head in the vertical direction, and a left operation button and a right operation button for rotating motion in the horizontal direction, when the power switch of the wireless remote controller is turned on, any one of the upper operation button, the lower operation button, the left operation button and the right operation button is selected to be continuously pressed, the wireless remote controller generates a corresponding operation signal and sends the operation signal to the wireless receiver, and after the wireless receiver on the main control board receives the operation signal, the multi-path cradle head on the automobile can synchronously rotate in the required direction or angle at the same time until the proper direction or angle is reached.
The following describes the specific working principle and control flow of the main control board in detail:
as shown in fig. 3, in the present embodiment, the main control board includes a voltage conversion unit and a central processing unit; the voltage conversion unit directly forms an electric direct-connection loop from a power input I1 of the vehicle-mounted storage battery as a power bus output O1, the power bus output O1 is the power input of the holder driving plate, and the other electric loop is led out from the power input I1 in parallel and is converted into working voltage +5V and GND required by the central processing unit after passing through a DC/DC isolation converter U6.
On the connection, the central processing unit comprises an MCU microprocessor U1, a CAN controller U2, an isolation CAN transceiver U3, an I/O interface circuit U4 and a wireless receiver U5; MCU microprocessor U1 is the core of control system data and instruction analysis and processing, CAN controller U2 is CAN bus network core control device, keep apart CAN transceiver U3 is the interface between CAN controller U2 and the physical bus, keep apart CAN transceiver U3 and convert CAN controller U2's logic level into CAN bus's differential level, transmit data on two CAN bus cables that have differential voltage, two CAN bus outputs lead to port O2, supply cloud platform drive plate to make CAN bus input usefulness.
The I/O interface circuit U4 is a channel for transmitting control signals of the MCU microprocessor U1 and peripheral circuits, and receives an operation signal from the wireless receiver U5; the wireless receiver U5 receives the operation signal I2 of the wireless remote controller.
The specific signal processing and analysis control flow of the main control board central processing unit is as follows:
the wireless receiver U5 receives an operation signal I2 from a cradle head power switch, stop, rotation in the horizontal direction or pitching motion in the vertical direction of the wireless remote controller, and then transmits the operation signal to the MCU microprocessor U1 through an I/O interface circuit U4; the MCU microprocessor U1 receives a wireless receiver operation signal from the I/O interface circuit U4, analyzes and processes data and then sends the data to the CAN controller U2; the CAN controller U2 receives data sent by the MCU microprocessor U1, processes the data and transmits the data to the isolation CAN transceiver U3, and meanwhile, the CAN controller U2 also receives the data received by the isolation CAN transceiver U3, processes the data and transmits the data to the MCU microprocessor U1.
And on connection, the MCU microprocessor U1, the CAN controller U2 and the isolation CAN transceiver U3 establish session communication through a CAN bus, and control data are correctly received and transmitted, so that the multi-channel cradle head driving plate is controlled to drive the cradle head to rotate in the azimuth direction and the pitching motor to pitch along the horizontal direction and the vertical direction, and the consistency of the movement of the cradle head and the pitching motor is ensured.
The above is the specific working principle and control flow of the main control board, and the following is a detailed description of the specific working principle and control flow of the holder driving board:
as shown in fig. 4, in the present embodiment, the pan/tilt drive board is composed of a voltage conversion and bus unit and a motor drive unit; the voltage conversion and bus unit takes the power output of the main control board as the + VBAT and GND of the power input I3 of the holder driving board, and directly forms an electric through loop to form the + VBAT and GND which are led to the output end O3 by the power bus, and in addition, the other electric loop is led out in parallel, and is converted into the working voltage required by the motor driving unit after passing through the DC/DC isolation converter U8; the CAN bus output of the main control board is used as the CAN bus input I3 CAN-H, CAN-L and PE of the holder driving board, and a CAN bus electric passage is directly formed and led to the CAN-H, CAN-L and PE of the output end O3.
In connection, the motor driving unit comprises an MCU microprocessor U1, a CAN controller U2, an isolation CAN transceiver U3, PWM controllers U4 and U5, an azimuth motor driver U6 and a pitching motor driver U7; the functions and functions of the MCU microprocessor U1, the CAN controller U2 and the isolation CAN transceiver U2 are the same as those of the main control board, and are not described again; PWM controllers U4 and U5 respectively provide pulse width modulation signals for azimuth and pitching motor drivers U6 and U7; the azimuth motor driver U6 and the pitching motor driver U7 are H-bridge power conversion circuits, can invert a direct-current power supply into a square wave power supply for the azimuth or pitching motor O4 or O5 to use, and can respectively adjust the output voltages of the azimuth and pitching drivers U6 and U7 by adjusting the duty ratio of pulse width modulation signals of the PWM controllers U4 and U5, thereby realizing the control of the rotating speed and the direction of the azimuth or pitching motor O4 or O5.
The control flow of the motor driving unit is as follows: when the isolation CAN transceiver receives operation instruction data of the rotation and vertical pitching motion of the holder azimuth sent by the main control panel through the CAN bus, the CAN controller receives the data of the isolation CAN transceiver and processes the data to the MCU microprocessor, and the MCU microprocessor is used for switching on the PWM controller through data analysis and processing to drive the azimuth or pitching motor driver, so as to drive the azimuth or pitching motor to move according to the operation instruction.
The above is the operating principle and control flow of the holder drive board, and the following introduces the composition and wiring mode of the power bus and the CAN bus:
as shown in fig. 4, in the present embodiment, the power supply bus line is composed of two lines + VBAT and GND, and its power supply input is from the vehicle-mounted battery output I1; the power bus of the invention is composed of three sections, wherein the first section is formed by outputting a vehicle-mounted storage battery to a main control panel input I1, the second section is formed by outputting a main control panel power output O1 to a holder drive panel power input I3, the third section is formed by connecting a power output end O3 of a first holder drive panel with a power input end I3 of a next holder drive panel, and the three sections of power connecting wires are all electrically connected in series, so that the length of the connecting wires can be shortened, and the quick connection is convenient. In other embodiments, the power bus of the present invention may be formed in four segments, etc.
On connecting, the CAN bus comprises the twisted pair CAN _ H of taking the shielding, CAN _ L, PE, consider the anti-electromagnetic interference requirement of CAN bus, the shielding layer PE of CAN bus connects into the multiple spot ground connection mode, the CAN bus of this control system comprises two sections at least, first section is by master control board CAN bus output O2 to cloud platform drive plate CAN bus input I3, the second section is CAN bus output O3 of a cloud platform drive plate and CAN bus input I3 of next cloud platform drive plate, two sections CAN connecting wire all constitute series connection electrical connection, CAN shorten the line length like this, convenient quick wiring.
To more clearly express the interconnection of the subsystems of the control system, please refer to fig. 5.
As shown in fig. 5, the power output terminal + VBAT, GND from the on-board battery BAT are connected to the power input terminal + VBAT, GND of the main control board MCP through an electrical through loop, the main control board MCP is connected to the PAN1, PAN2, PANX, PAN8 and the wireless remote controller WRC, and supplies power buses (+ VBAT, GND) of the PAN head drive board and a CAN bus network (CAN-H, CAN-L, PE) to the PAN head drive board, and receives WRC operation signals of the wireless remote controller; the power input end + VBAT and GND of the PAN driving board PAN are led from the power output end + VBAT and GND of the main control board MPC, and CAN bus control signals CAN _ H and CAN _ L are led from CAN bus networks (CAN-H, CAN-L and PE) output by the main control board;
and the power supply buses (+ VBAT, GND) and the CAN buses (CAN-H, CAN-L and PE) are used for power supply connection and CAN network electrical connection between the storage battery and the main control board MPC, between the main control board MPC and the PAN head drive board PAN, between the PAN head drive board PAN1 and PAN 2.
The multi-channel holder synchronous rotation control system provided by the embodiment of the invention has the following functions: firstly, the direction and the angle of the cradle head can be controlled and adjusted through the operation of the wireless remote controller, the consistency of the rotating direction and the angle of each working lamp is ensured, and the operation is simple and convenient, so that the requirements of different lighting scenes of an automobile are met; secondly, a power bus and CAN bus control mode is adopted, the connection length is shortened, and the connection is convenient and rapid; and thirdly, the system is easy to expand and upgrade, and can be connected with eight cloud platforms at most for installing the automobile working lamp under the condition that the capacity of the automobile storage battery allows.
The present invention is not limited to the above-mentioned alternative embodiments, and any other various products can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, all of which fall within the scope of the present invention, fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides a multichannel cloud platform synchronous revolution control system of car work light which characterized in that: the system comprises a main control board, a plurality of holder driving boards, a power bus, a CAN bus and a wireless remote controller;
the main control board is electrically connected with the vehicle-mounted storage battery, the main control board is electrically connected with the holder drive plate through a power bus, and the main control board is also electrically connected with the plurality of holder drive plates through a CAN bus;
the main control board is provided with a central processing unit, the central processing unit receives operation signals sent by the wireless remote controller, after data analysis and processing, the analyzed and processed signals are communicated with the plurality of holder drive plates in a session mode on a CAN network, the holder drive plates respectively drive the plurality of cloud platforms to rotate along the horizontal direction and synchronously move in a pitching mode along the vertical direction, the wireless remote controller is provided with a power switch, a stop button, an upper operation button, a lower operation button, a left operation button, a right operation button and a left operation button, when the wireless remote controller is powered on, the wireless remote controller selects to continuously press any one of the upper operation button, the lower operation button, the left operation button and the right operation button, the wireless remote controller generates corresponding operation signals and sends the operation signals to a wireless receiver on the central processing unit, the wireless receiver receives the operation signals and sends the operation signals to the central processing unit, the main control board further comprises a voltage conversion unit, the voltage conversion unit directly forms an electrical loop from a power input I1 of a vehicle-mounted storage battery to serve as a power bus output O1, the power bus output O1 is a power input I1, another electrical loop is connected with a DC/DC converter, and a GND/DC converter is connected in parallel, and the DC converter is connected with the DC converter 5, and the DC converter is connected with the DC converter.
2. The multi-way holder synchronous rotation control system of the working lamp of the automobile according to claim 1, characterized in that: the central processing unit comprises an MCU (microprogrammed control Unit) microprocessor U1, a CAN controller U2, an isolated CAN transceiver U3, an I/O (input/output) interface circuit U4 and a wireless receiver U5, wherein the isolated CAN transceiver U3 converts the logic level of the CAN controller U2 into the differential level of a CAN bus, transmits data on two CAN bus cables with differential voltage, and outputs of the two CAN buses are led to a port O2 for the tripod head drive board to be used as CAN bus input; the I/O interface circuit U4 is a channel for transmitting control signals between the MCU microprocessor U1 and peripheral circuits, and receives an operation signal from the wireless receiver U5; the wireless receiver U5 receives an operation signal I2 of the wireless remote controller.
3. The multi-way pan-tilt synchronous rotation control system of the automobile working lamp according to claim 2, characterized in that: and the wireless receiver U5 receives an operation signal I2 from a holder power switch, a stop, a rotation in the horizontal direction or a pitching motion in the vertical direction of the wireless remote controller, and then transmits the operation signal to the MCU microprocessor U1 through the I/O interface circuit U4.
4. The multi-pan-tilt synchronous rotation control system of the working lamp of the automobile according to claim 3, characterized in that: the MCU microprocessor U1 receives the wireless receiver operation signal from the I/O interface circuit U4, analyzes and processes the data, and then sends the data to the CAN controller U2; the CAN controller U2 receives data sent by the MCU microprocessor U1, processes the data and transmits the data to the isolation CAN transceiver U3, and meanwhile, the CAN controller U2 also receives the data received by the isolation CAN transceiver U3, processes the data and transmits the data to the MCU microprocessor U1; and the MCU microprocessor U1, the CAN controller U2 and the isolated CAN transceiver U3 establish session communication through a CAN bus, so that the multi-path holder driving plate is controlled to drive the holder azimuth and the pitching motor to rotate along the horizontal direction and pitch along the vertical direction.
5. The multi-way holder synchronous rotation control system of the working lamp of the automobile according to claim 4, characterized in that: the holder driving plate comprises a voltage conversion and bus unit and a motor driving unit; the voltage conversion and bus unit takes the power output of the main control board as + VBAT and GND of the power input I3 of the holder driving board, and directly forms an electric through loop to form a + VBAT and GND which are led to the output end O3 by the power bus, and in addition, another electric loop is led out in parallel and is converted into the working voltage of the motor driving unit after passing through a DC/DC isolation converter U8; the CAN bus output of the main control board is used as the CAN bus input I3 of the holder driving board to input CAN-H, CAN-L and PE, and a CAN bus electric passage is directly formed and led to the CAN-H, CAN-L and PE of the output end O3;
the motor driving unit comprises an MCU (microprogrammed control Unit) microprocessor U1, a CAN (controller area network) controller U2, an isolation CAN transceiver U3, a PWM (pulse-width modulation) controller U4, a PWM controller U5, an azimuth motor driver U6 and a pitching motor driver U7;
the PWM controller U4 and the PWM controller U5 respectively provide pulse width modulation signals for an azimuth and pitching motor driver U6 and a motor driver U7; the azimuth motor driver U6 and the pitch motor driver U7 are both H-bridge power conversion circuits, a direct-current power supply is inverted into a square-wave power supply for the azimuth or pitch motor O4 or O5 to use, and the output voltages of the azimuth motor driver U6 and the pitch motor driver U7 are respectively adjusted by adjusting the duty ratios of pulse width modulation signals of the PWM controllers U4 and U5, so that the rotation speed and the direction of the azimuth motor O4 or the pitch motor O5 are controlled.
6. The multi-pan-tilt synchronous rotation control system of the working lamp of the automobile according to claim 5, characterized in that: when the isolation CAN transceiver U3 receives the operation instruction data of the rotation and vertical pitching motion of the holder in the azimuth direction sent by the main control panel through the CAN bus, the CAN controller receives the data of the isolation CAN transceiver U3 by the U2 and processes the data to transmit the data to the MCU microprocessor U1, and the MCU microprocessor U1 is connected with the PWM controller U4 through data analysis and processing to drive the azimuth motor driver U6 or the pitching motor driver U7 so as to drive the azimuth motor O4 or the pitching motor O5 to move according to the operation instruction.
7. The multi-pan-tilt synchronous rotation control system of the working lamp of the automobile as claimed in claim 6, wherein: the power bus consists of two lines + VBAT and GND, and the power input of the power bus is from the output I1 of the vehicle-mounted storage battery; the power bus of the control system comprises three sections, wherein the first section is output to the main control panel input I1 by a vehicle-mounted storage battery, the second section is output to the holder drive board power input I3 by the main control panel power output O1, the third section is a connecting line between the power output end O3 of the first holder drive board and the power input end I3 of the next holder drive board, and the three sections of power connecting lines are all in series electrical connection;
the CAN bus comprises shielded twisted-pair lines CAN _ H, CAN _ L and PE, a shielding layer PE of the CAN bus is connected in a multipoint grounding mode, the CAN bus at least comprises two sections, the first section is from the output end O2 of the CAN bus of the main control board to the input end I3 of the CAN bus of the holder driving board, the second section is from the output end O3 of the CAN bus of one holder driving board to the input end I3 of the CAN bus of the next holder driving board, and two sections of CAN connecting lines form serial electrical connection.
8. The multi-pan-tilt synchronous rotation control system of the working lamp of the automobile according to claim 7, characterized in that: a power output end + VBAT and a GND from a vehicle-mounted storage battery are connected to a power input end + VBAT and a GND of the main control board MCP through an electric direct loop, the main control board MCP is connected with the holder driving boards PAN1, PAN2, PANX and PAN8 and the wireless remote controller WRC, the power bus + VBAT and the GND of the holder driving boards and CAN bus networks CAN-H, CAN-L and PE are supplied, and operation signals of the wireless remote controller WRC are received;
the power input end + VBAT and GND of the PAN head driving board PAN are led from the power output end + VBAT and GND of the main control board MPC, and CAN bus control signals CAN _ H and CAN _ L are led from CAN bus networks CAN-H, CAN-L and PE output by the main control board;
the power supply bus + VBAT, GND and the CAN buses CAN-H, CAN-L and PE are used for power supply connection and CAN network electrical connection between a storage battery and the main control board MPC, between the main control board MPC and the PAN head drive board PAN, between the PAN head drive board PAN1 and PAN 2.
CN202010414031.7A 2020-05-15 2020-05-15 Multi-path holder synchronous rotation control system of automobile working lamp Active CN111479373B (en)

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CN2737100Y (en) * 2004-11-02 2005-10-26 郑贵林 CAN bus based cradle head control system
CN201608828U (en) * 2010-01-13 2010-10-13 山东神戎电子股份有限公司 High-precision intelligent servo monitoring device for laser illuminator
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