Control circuit and control method of vibration screen
By designing the control circuit of the vibration screen, using the synchronous processing of touch signals between the MCU and the host terminal and sending vibration signals, the problem of visual confirmation required after the central control screen operation is solved, and driving safety and control accuracy are improved.
Patent Information
- Application Number
- CN202510190482.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-05-30
AI Technical Summary
The existing car central control screen requires the driver to make visual confirmation after operation, which causes the driver to be distracted and increases safety risks.
A control circuit for a vibration screen is designed, including a deserializer, the host terminal and the MCU. By receiving touch signals and sending vibration signals, the driver can successfully operate through vibration sensing after operating the central control screen.
It solves the problem that the driver needs to visually confirm the successful control during driving, improves driving safety, and supports high-speed video data transmission and bidirectional control communication through the FPD-Link III serial bus, improving control accuracy.
Smart Images
Figure CN120065836A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of in-vehicle intelligent cockpits, and particularly relates to a control circuit and a control method for a vibrating screen. Background Art
[0002] As a future mobile intelligent terminal, the in-vehicle system of a car will be a key node connecting people's lives; therefore, in the past development process of cars, the packaging of the car cockpit has become one of the most important tasks for car manufacturers. With the increasing influence of intelligence on users' willingness to purchase cars, car manufacturers will only pay more and more attention to intelligent cockpits; However, in the actual operation process, visual confirmation is required after touching the central control screen, which will cause the driver to be distracted. If the driver keeps operating to confirm the successful operation, it is easy to cause safety accidents. The existing screens cannot inform the driver of the perception effect of the central control screen operation during driving. Therefore, it is necessary to develop a control circuit and a control method for a vibrating screen to solve the existing problems. Summary of the Invention
[0003] The purpose of the present invention is to provide a control circuit and a control method for a vibrating screen to solve the problem that the driver needs visual confirmation to determine whether the operation of the central control screen is successful after using it.
[0004] To achieve the above purpose, the present invention provides the following technical solutions: A control circuit for a vibrating screen, comprising: A deserialiser, which receives touch signals; A host terminal, which receives the touch signals from the deserialiser, processes the touch signals to obtain touch actions, and invokes corresponding applications in response to the touch actions; An MCU, which receives and processes the touch signals and sends vibration signals according to the touch signals; Wherein, the MCU and the host terminal trigger and process the touch signals at the same time point.
[0005] Preferably, the touch signals include at least one of a touch point or a touch area.
[0006] Preferably, the deserialiser is connected to the host terminal through an FPD_Link bus.
[0007] Preferably, the vibration signals are sent to a driving chip, and the driving chip sends driving instructions to drive the motor to work. The driving chip transmits the vibration signals through a control bus I2C.
[0008] Preferably, the motor includes a first motor, a second motor, and a third motor; The first motor is connected to a first driving chip, and the first driving chip is connected to the I2C1 port of the MCU; The second motor is connected to a second driving chip, and the second driving chip is connected to the I2C1 port of the MCU; The third motor is connected to a third driving chip, and the third driving chip is connected to the I2C1 port of the MCU.
[0009] Preferably, the audio output I2S port of the MCU is connected to an audio codec, the audio codec is connected to an audio amplifier, and the audio amplifier is connected to a speaker.
[0010] Preferably, the I2C port of the deserialiser is connected to the I2C3 port of the MCU and the TP port of the host, and the TP port of the host is connected to the GPIO port of the deserialiser.
[0011] Preferably, the LVDS interface of the deserialiser is connected to the LCM interface of the touch screen.
[0012] The present invention further provides a control method for a control circuit of a vibrating screen, comprising the following steps: When the touch screen receives a touch signal, it transmits the touch point or area to the deserialiser and the MCU of the touch screen through a digital I2C signal, and the deserialiser transmits it to the host through the FPD_Link bus; When the host receives a touch action, the MCU of the touch screen also receives the touch action. The host and the MCU of the touch screen process the touch action simultaneously. The host responds to this touch action and calls the corresponding application function. The MCU of the touch screen simultaneously sends an instruction to the corresponding control bus I2C to configure the driving chip of the motor, and the driving chip drives the motor to work.
[0013] The technical effects and advantages of the present invention: The control circuit and control method of the vibrating screen are mainly applied to the touch vibration feedback of the in-vehicle intelligent cockpit. After the driver completes the operation of the central control screen during driving, a perception effect is obtained, solving the problem that the driver does not need to visually confirm whether the operation is successful; through the FPD-Link III serial bus, full-duplex control that supports high-speed video data transmission and two-way control communication through a single differential link is achieved, improving the control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a framework schematic diagram of the present invention; Figure 2 is a schematic diagram of the method flow of the present invention; Figure 3 is a schematic diagram of the method embodiment flow of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0016] The present invention provides a control circuit for a vibration screen as shown in Figure 1 and includes: A deserialiser that receives touch signals; in this embodiment, the model of the deserialiser is DS90UB948-Q1; the deserialiser is connected to the host through the FPD_Link bus; the I2C port of the deserialiser is connected to the I2C3 port of the MCU and the TP port of the host, and the TP port of the host is connected to the GPIO port of the deserialiser. The LVDS interface of the deserialiser is connected to the LCM interface of the touch screen; A host that receives the touch signals from the deserialiser, processes the touch signals to obtain touch actions, and invokes corresponding applications in response to the touch actions; An MCU that receives and processes the touch signals and sends vibration signals according to the touch signals; in this embodiment, the model of the MCU is STM32G0B1KET3TR (32pin); Among them, the MCU and the host trigger and process the touch signals at the same time point; The touch signals include at least one of a touch point or a touch area, The vibration signals are sent to a drive chip, and the drive chip sends drive instructions to drive the motor to work. In this embodiment, the drive chip transmits the vibration signals through the control bus I2C; The motors include a first motor, a second motor, and a third motor; The first motor is connected to a first drive chip, and the first drive chip is connected to the I2C1 port of the MCU; The second motor is connected to a second drive chip, and the second drive chip is connected to the I2C1 port of the MCU; The third motor is connected to a third drive chip, and the third drive chip is connected to the I2C1 port of the MCU; In this embodiment, the motors further include a fourth motor, a fifth motor, and a sixth motor; The fourth motor is connected to a fourth drive chip, and the fourth drive chip is connected to the I2C2 port of the MCU; The fifth motor is connected to a fifth drive chip, and the fifth drive chip is connected to the I2C2 port of the MCU; The sixth motor is connected to a sixth driving chip, and the sixth driving chip is connected to the I2C2 port of the MCU; The audio output I2S port of the MCU is connected to an audio codec. In this embodiment, the model of the audio codec is AK4940VN. The audio codec is connected to an audio amplifier, and the audio amplifier is connected to a speaker. In this embodiment, the model of the audio amplifier is TPA6211A1-Q1.
[0017] The present invention further provides a control method for a control circuit of a vibration screen, as Figure 2 、 Figure 3 shown, including the following steps: Step 1: When the touch screen receives a touch signal, it transmits the touch point or area to the deserializer and the MCU of the touch screen through a digital I2C signal, and the deserializer transmits it to the host through the FPD_Link bus; Step 2: When the host receives a touch action, the MCU of the touch screen also receives the touch action. The host and the MCU of the touch screen process the touch action simultaneously. The host responds to this touch action and calls the corresponding application function. The MCU of the touch screen simultaneously sends an instruction to the corresponding control bus I2C to configure the driving chip of the motor, and the driving chip drives the motor to work.
[0018] The FPD-Link III serial bus supports full-duplex control for high-speed video data transmission and two-way control communication through a single differential link; as Figure 1 shown, the left side is responsible for coordinate judgment after touch event input, and the right side is responsible for driving and audio feedback; In this embodiment, the interrupt feedback of the Touchpanel and the bus control of FPD_Link on the separated cockpit are adopted. In this embodiment, the Touchpanel is a touch screen. When the Touchpanel receives a touch signal, it will transmit the specific touch point or area to the deserializer and the MCU of the touch screen through a digital I2C signal, and then the deserializer will transmit it to the host through the FPD_Link bus; when the host receives the action of Touch, the MCU of the touch screen will also receive this action. In this embodiment, the action is a touch action. The host and the MCU of the touch screen process this action simultaneously. The host responds to this touch action and calls the relevant application function. The MCU of the touch screen will simultaneously send an instruction to the corresponding control bus I2C to configure the driving chip of the motor, and the driving chip drives the motor; The control circuit and control method of the vibrating screen are mainly applied to the touch vibration feedback of the in-vehicle intelligent cockpit. After the driver completes the operation of the central control screen during driving, a perception effect is obtained, solving the problem that the driver does not need to visually confirm whether the operation is successful; through the FPD-Link III serial bus, full-duplex control that supports high-speed video data transmission and two-way control communication through a single differential link is achieved, improving the accuracy of control.
[0019] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A control circuit for a vibration screen, characterized in that: include: A deserializer, wherein the deserializer receives a touch signal; The host receives the touch signal of the deserializer, processes the touch signal to obtain a touch action, and calls a corresponding application in response to the touch action; MCU, receives and processes the touch signal, and sends a vibration signal according to the touch signal; The MCU and the host trigger the same time point for processing the touch signal.
2. The control circuit of a vibration screen according to claim 1, characterized in that: The touch signal includes at least one of a touch point or a touch area.
3. The control circuit of a vibration screen according to claim 1, characterized in that: The deserializer is connected to the host end via a FPD_Link bus.
4. The control circuit of a vibration screen according to claim 1, characterized in that: The vibration signal is sent to a driving chip, and the driving chip sends a driving instruction to drive the motor to work.
5. The control circuit of a vibration screen according to claim 4, characterized in that: The driving chip transmits the vibration signal via the control bus I2C.
6. The control circuit of a vibration screen according to claim 5, characterized in that: The motors include a first motor, a second motor, and a third motor; The first motor is connected to a first driving chip, and the first driving chip is connected to an I2C1 port of the MCU; The second motor is connected to a second driving chip, and the second driving chip is connected to an I2C1 port of the MCU; The third motor is connected to a third driving chip, and the third driving chip is connected to the I2C1 port of the MCU.
7. The control circuit of a vibration screen according to claim 1, characterized in that: The audio output I2S port of the MCU is connected to an audio codec, the audio codec is connected to an audio amplifier, and the audio amplifier is connected to a speaker.
8. The control circuit of a vibration screen according to claim 1, characterized in that: The I2C port of the deserializer is connected to the I2C3 port of the MCU and the TP port of the host end, and the TP port of the host end is connected to the GPIO port of the deserializer.
9. The control circuit of a vibration screen according to claim 1, characterized in that: The LVDS interface of the deserializer is connected to the LCM interface of the touch screen.
10. A control method for a control circuit of a vibration screen according to any one of claims 1 to 9, characterized in that: The following steps are involved: When the touch screen receives the touch signal, it transmits the touch point or area to the deserializer and the touch screen's MCU through a digital I2C signal, and the deserializer transmits it to the host through the FPD_Link bus; When the host receives a touch action, the MCU of the touch screen also receives the touch action. The host and the MCU of the touch screen process the touch action at the same time. The host responds to the touch action and calls the corresponding application function. The MCU of the touch screen also sends instructions to the corresponding control bus I2C to configure the driver chip of the motor, and the driver chip drives the motor to work.