CN220391161U - Closing and opening control system of automobile ceiling screen - Google Patents
Closing and opening control system of automobile ceiling screen Download PDFInfo
- Publication number
- CN220391161U CN220391161U CN202322208673.3U CN202322208673U CN220391161U CN 220391161 U CN220391161 U CN 220391161U CN 202322208673 U CN202322208673 U CN 202322208673U CN 220391161 U CN220391161 U CN 220391161U
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- magnetic field
- field intensity
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- 230000006698 induction Effects 0.000 claims abstract description 8
- 230000002618 waking effect Effects 0.000 claims abstract description 7
- 230000007958 sleep Effects 0.000 claims abstract 2
- 238000001514 detection method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000005059 dormancy Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract 1
- 238000005282 brightening Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The utility model relates to a closing and opening control system of an automobile ceiling screen, which comprises an in-car host controller and a ceiling screen assembly, wherein the ceiling screen assembly comprises a main board and a display screen, a magnet is arranged on the display screen, a Hall sensor capable of receiving a magnetic field intensity value is also arranged at a corresponding position of the main board, an MCU module is also arranged in the main board, the induction distance between the magnet and the Hall sensor changes along with the turnover of the display screen, the MCU module of the main board compares the real-time magnetic field intensity value with a set magnetic field intensity value, a high level or low level signal is output to the host controller, and the host controller judges the opening and closing states of the display screen so as to give a bright screen instruction for opening the display screen and waking up or give a screen closing instruction for closing the display screen and going into sleep. Through the induction fit of the Hall sensor and the magnet, the abrasion of structural parts can be avoided, the opening and the closing are simpler, and the use reliability of the whole system can be improved.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to a closing and opening control system of an automobile ceiling screen.
Background
The automobile ceiling screen is a latest product for realizing information interaction between people and automobiles in the automobile, and is connected to a host controller in the automobile through a wire harness. The function is mainly realized by transmitting the level state of the closed screen to a host module of an automobile when the ceiling screen is closed, and then closing the backlight and the display picture of the ceiling screen after the host receives the hard-wire signal of the closed screen. The current common circuit mode of the automobile switch system is to realize the detection function in a micro switch triggering mode, and structural parts and micro abrasion can be caused after the automobile switch system is opened and closed for many times, so that the reliability is reduced.
Disclosure of Invention
The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides the closing and opening control system of the automobile ceiling screen, and the Hall sensor is matched with the magnet in an induction way, so that the abrasion of structural members can be avoided, the opening and closing are simpler, and the use reliability of the whole system can be improved.
The technical scheme of the utility model is as follows: a control system for closing and opening a ceiling screen of an automobile comprises an in-automobile host controller and a ceiling screen assembly, wherein the ceiling screen assembly comprises a main board and a display screen which can be turned over and opened relative to the main board, a magnet is arranged on the display screen, a Hall sensor which can receive a magnetic field intensity value is also arranged at a corresponding position of the main board, an MCU module which can calculate and process the magnetic field intensity value is also arranged in the main board, the induction distance between the magnet and the Hall sensor is changed along with the turning over of the display screen, so that the magnetic field intensity value received by the Hall sensor is variable,
the MCU module of the main board compares the real-time magnetic field intensity value with the set magnetic field intensity value, outputs a high-level signal or a low-level signal to the host controller, and the host controller judges the opening and closing states of the display screen through the level signal so as to give a screen-on instruction for opening a display screen and waking up, or give a screen-off instruction for closing the display screen and entering into dormancy.
Preferably, in the state that the display screen is closed: when the real-time closing magnetic field intensity value alpha 1 received by the Hall sensor is larger than the setting closing magnetic field intensity value alpha 2, outputting a high-level signal to the host controller, judging that the display screen is closed by the host controller, and sending a screen closing instruction for closing the display screen and entering into dormancy to the display screen;
under the state that the display screen is turned over and opened: when the real-time starting magnetic field intensity value beta 1 received by the Hall sensor is smaller than the set starting magnetic field intensity value beta 2, a low-level signal is output to the host controller, the host controller judges that the display screen is opened, and sends a screen-lighting instruction for starting a display screen and waking up the display screen.
Preferably, the closed magnetic field intensity value α2 is set to 120, and the open magnetic field intensity value β2 is set to 80.
Preferably, the opening limit angle of the display screen is 105 degrees, and the detection signal value range of the Hall sensor is 0-300.
The utility model provides a method for sensing by using the cooperation of a Hall sensor and a magnet, which is characterized in that a host controller judges whether a display screen is opened or closed through the change of a magnetic field intensity value so as to control the bright screen and the close screen of the display screen. The detection is carried out in a non-contact mode, so that the opening and closing detection is simpler, and the use reliability of the whole system can be improved.
In addition, the specified induction distance can be set in a mode of calibrating the magnetic field intensity, so that the method is more flexible.
Drawings
FIG. 1 is a system control flow diagram of an embodiment of the present utility model;
FIG. 2 is a diagram of one of the construction of a ceiling assembly in accordance with an embodiment of the present utility model, wherein the display is in an open state and S is the maximum angle at which the display is open;
FIG. 3 is a second block diagram of a ceiling assembly in accordance with an embodiment of the present utility model, wherein the display is in a closed position.
In the figure: the ceiling screen assembly A, the main board A1, the display screen A2, the magnet 1 and the Hall sensor 2.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, the closing and opening control system of the automobile ceiling screen comprises an in-car host controller and a ceiling screen assembly a, wherein the ceiling screen assembly a comprises a main board A1 and a display screen A2 which can be turned over and opened relative to the main board A1, the main board A1 is arranged on an automobile, the display screen A2 is hinged with the main board A1, a magnet 1 is arranged on the display screen A2, a hall sensor 2 which can receive a magnetic field intensity value is also arranged at a corresponding position of the main board A1, the magnet 1 and the hall sensor 2 are required to correspond to each other in position in a covering state of the display screen A2, an MCU module which can perform filtering calculation processing on the magnetic field intensity value is also arranged in the main board A1, the magnetic field intensity value received by the hall sensor 2 is sent to the MCU module through an I2C bus, the induction distance between the magnet 1 and the hall sensor 2 is changed along with the turning over of the display screen A2, so that the magnetic field intensity value received by the hall sensor 2 is changeable,
the MCU module of the main board A1 compares the real-time magnetic field intensity value with the set magnetic field intensity value, outputs a high-level signal or a low-level signal to the host controller, and the host controller judges the on-off state of the display screen A2 through the received level signal so as to give a screen-on instruction for starting a display screen and waking up the display screen A2 or give a screen-off instruction for giving a screen-off instruction for closing the display screen and entering into dormancy to the display screen A2.
Specifically, in the case where the display screen A2 is in the on state: when the real-time closing magnetic field intensity value alpha 1 received by the Hall sensor 2 is larger than the setting closing magnetic field intensity value alpha 2, outputting a high-level signal to a host controller through a hard wire output signal, and processing and judging that the display screen A2 is closed after the host controller receives the high-level signal, and sending a screen closing instruction for closing a display screen and entering into dormancy to the display screen A2;
in the state that the display screen A2 is turned on: when the real-time starting magnetic field intensity value beta 1 received by the Hall sensor 2 is smaller than the set starting magnetic field intensity value beta 2, a signal is output through a hard wire, a low-level signal is output to a host controller, the host controller processes the low-level signal and judges that the display screen A2 is opened after receiving the low-level signal, and a screen-lighting instruction for starting a display screen and waking up is sent to the display screen A2.
Specifically, the closed magnetic field intensity value α2 is set to 120, and the open magnetic field intensity value β2 is set to 80.
Specifically, the overturning angle of the display screen A2 is 0-105 degrees (the opening limit angle of the display screen is 105 degrees), and the range of detection signal values of the Hall sensor 2 is 0-300 degrees.
The utility model provides a method for sensing by using the cooperation of the Hall sensor 2 and the magnet 1, wherein the display screen A2 is judged to be opened or closed by a host controller through the change of the magnetic field intensity value, so that the bright screen and the off screen of the display screen A2 are controlled. The detection is carried out in a non-contact mode, so that the opening and closing detection is simpler, and the use reliability of the whole system can be improved.
In addition, the specified induction distance can be set in a mode of calibrating the magnetic field intensity, so that the method is more flexible.
During the screen closing test, the display screen A2 is in the closed state: if the host controller receives the high-level signal, the display screen A2 is judged to be closed, a screen closing instruction is given, and the screen closing test is qualified;
during the bright screen test, when the display screen A2 is in a turned-on state: if the host controller receives the low-level signal, the display screen A2 is judged to be opened, a screen-brightening instruction is given, and the screen-brightening test is qualified;
when the test is performed, the screen closing test and the screen brightening test are qualified, the whole test result of the closing and opening control system of the automobile ceiling screen is qualified, and when any one of the test processes in the screen closing test and the screen brightening test is unqualified, the test result of the closing and opening control system of the automobile ceiling screen is unqualified.
Claims (4)
1. A closing and opening control system of an automobile ceiling screen is characterized in that: the intelligent automobile ceiling system comprises a host controller and a ceiling screen assembly in the automobile, wherein the ceiling screen assembly comprises a main board and a display screen which can be turned and opened relative to the main board, a magnet is arranged on the display screen, a Hall sensor which can receive a magnetic field intensity value is also arranged at a corresponding position of the main board, an MCU module which can calculate and process the magnetic field intensity value is also arranged in the main board, the induction distance between the magnet and the Hall sensor changes along with the turning of the display screen, so that the magnetic field intensity value received by the Hall sensor is variable, the MCU module of the main board compares the real-time magnetic field intensity value with a set magnetic field intensity value, a high-level signal or a low-level signal is output to the host controller, and the host controller judges the opening and closing states of the display screen through the level signal so as to give a bright screen instruction for opening the display screen and waking up or give a screen closing instruction for closing the display screen and entering into a sleep mode.
2. The system for controlling the closing and opening of a roof panel of an automobile according to claim 1, wherein: when the display screen is in the on state: when the real-time closing magnetic field intensity value alpha 1 received by the Hall sensor is larger than the setting closing magnetic field intensity value alpha 2, outputting a high-level signal to the host controller, judging that the display screen is closed by the host controller, and sending a screen closing instruction for closing the display screen and entering into dormancy to the display screen;
under the state that the display screen is turned over and opened: when the real-time starting magnetic field intensity value beta 1 received by the Hall sensor is smaller than the set starting magnetic field intensity value beta 2, a low-level signal is output to the host controller, the host controller judges that the display screen is opened, and sends a screen-lighting instruction for starting a display screen and waking up the display screen.
3. The system for controlling the closing and opening of a roof panel of a motor vehicle according to claim 2, wherein: the closed magnetic field intensity value α2 was set to 120, and the open magnetic field intensity value β2 was set to 80.
4. A closing and opening control system for a roof panel of an automobile according to claim 1, 2 or 3, wherein: the overturning angle of the display screen is 0-105 degrees, and the detection signal value range of the Hall sensor is 0-300 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322208673.3U CN220391161U (en) | 2023-08-16 | 2023-08-16 | Closing and opening control system of automobile ceiling screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322208673.3U CN220391161U (en) | 2023-08-16 | 2023-08-16 | Closing and opening control system of automobile ceiling screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220391161U true CN220391161U (en) | 2024-01-26 |
Family
ID=89604717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322208673.3U Active CN220391161U (en) | 2023-08-16 | 2023-08-16 | Closing and opening control system of automobile ceiling screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220391161U (en) |
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2023
- 2023-08-16 CN CN202322208673.3U patent/CN220391161U/en active Active
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