TWI507831B - Vehicle system interface swithcing method, apparatus and system thereof - Google Patents

Description

Interface switching method, device and system for vehicle system

The invention relates to a device switching method, device and system for a vehicle system, in particular to a vehicle system for utilizing an interface switching circuit in a vehicle system to achieve enhanced image signals and provide a new control interface.

In addition to emphasizing the improvement of the driving performance of the car itself, the development of the existing car has gradually paid attention to the multi-functional requirements that can be provided to the driver in the car. For example, the user can control various cars through the in-vehicle control interface. Internal devices, such as car audio and video systems, navigation systems, and common driving record systems, integrate the operation of these systems through a control interface.

According to the conventional car audio-visual satellite navigation system, the car audio-visual navigation system mainly includes a control host that controls the operation of the whole system, a control panel that connects the control host and provides a user operation interface, and a display screen to display various displays. The operating interface of the system, satellite navigation screens, and audio and video content.

Since the vehicle is often designed with the local market demand as the main axis in the manufacturing process, the car audio-visual satellite navigation system is built into the system when the vehicle is shipped, that is, combined with local map data, and the definition of video and audio code should also be met. Local norms.

However, in the prior art, the original AV satellite navigation equipment in the car may not meet the needs of each driving user. In the face of the ever-changing audio and video technology, the original design may not be updated in real time.

In order to solve the problem that the original in-vehicle system is not easy to customize, the conventional technology has provided an external connection method to load the newly added function system on the original system.

In order to provide an operating environment other than the operating interface and interface functions provided by the original vehicle system, the invention disclosed in the disclosure relates to an interface switching device disposed in a vehicle system, the vehicle system including the associated circuit modules The main control circuit; the image processing module for processing the original image signal input to the vehicle system; the input interface module for inputting the hardware interface of the hardware or software of the vehicle system, wherein at least the first operation interface of the vehicle system is provided The image and the second operation interface image, and the definition of the interface function; the interface switching device for receiving the image signal and the control signal transmitted by the main control circuit, the interface switching device is used to switch the operation interface of the vehicle system, for example, switching to the first The operation interface image or the second operation interface image is switched, and the interface function definition corresponding to the first operation interface image or the second operation interface image is switched; the interface switching device is provided with the image enhancement module for adjusting the image parameter of the image signal; A display module for displaying an interface image and video content.

According to one embodiment, the main control circuit, the input interface module and the image processing module form a driving computer, an interface switching device, and a display module, which can be separate and modularized independent devices.

In another embodiment, the driving computer, the interface switching device and the display module composed of the main control circuit, the input interface module and the image processing module can be a single device integrating all the circuits.

In an embodiment, the interface switching device is mainly provided with an image input interface for receiving an image signal, and the received image signal includes the first operation interface image used in the vehicle system, and replaces the first operation interface image. The second operation interface image has a signal input interface for receiving a control signal generated by the user operating the interface function defined by the first operation interface image, and a control signal generated by the interface function redefined by operating the second operation interface image.

The interface switching device is provided with a signal switching unit for switching the output of the first operation interface image and the second operation interface image according to a user selection or a system preset. The interface switching device further includes an image enhancement module for adjusting the image signal, which may include adjusting the resolution of the input image signal and various color parameters to enhance the image quality, and then outputting the first operation interface image or the second operation interface via the image output interface. The image and the image signal adjusted by the image enhancement module.

In an embodiment, the interface switching device may include a feedback signal interface, and the interface switching device obtains the image display and processing capability of the display module via the feedback signal interface, so the image enhancement module obtains the display mode according to the feedback signal interface. The image parameters of the group are displayed and processed to adjust the image parameters of the image signal. The image signal processed by the image enhancement module is a television signal, a video signal, a navigation screen signal, a driving record signal or a digital image signal input from the image input interface to the interface switching device.

Moreover, when the interface switching device switches to the second operation interface image, the corresponding interface function is redefined, including redefining the function of the physical button or the knob of the vehicle system, and further includes redefining the physical button or knob when performing a function. The way of operation.

The process of the interface switching method of the related vehicle system includes starting the vehicle system first, and then scanning the first operation interface image or the second operation interface image supported by the input interface module, and loading the corresponding first operation interface image or The interface function definition of the second operation interface image.

In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings and the annexed drawings are intended to be illustrative and not to limit the invention.

10‧‧‧ display device

101‧‧‧Control knob

103‧‧‧Control buttons

105‧‧‧Home screen

107‧‧‧Input interface

21‧‧‧Display module

23‧‧‧Interface switching device

231‧‧‧Image Enhancement Module

25‧‧‧Master circuit

27‧‧‧Input interface module

201‧‧‧Image signal

202‧‧‧ feedback signal

203‧‧‧Control signal

204‧‧‧ original image signal

205‧‧‧Other input signals

29‧‧‧Image Processing Module

30‧‧‧Interface switching device

301‧‧‧Microprocessing unit

302‧‧‧Image input interface

303‧‧‧Signal input interface

304‧‧‧Signal switching unit

305‧‧‧Image Enhancement Module

306‧‧‧Image output interface

307‧‧‧ feedback signal interface

32‧‧‧Master circuit

34‧‧‧Display module

One of the steps S401~S407‧‧‧ interface switching process

Step S501~S509‧‧‧Interface Switching Process 2

Step S601~S613‧‧‧ interface switching process three

Step S701~S715‧‧‧Image Enhancement Process

Figure 1 is a schematic view showing the operation interface of the vehicle; 2 is a schematic block diagram showing an embodiment of a vehicle switching system having an interface switching device; FIG. 3 is a block diagram showing an embodiment of an interface switching device of the vehicle system of the present invention; FIG. 5 is a second flowchart of an embodiment of an interface switching method for a vehicle system of the present invention; FIG. 6 is a third flowchart of an embodiment of an interface switching method for a vehicle system of the present invention; A flowchart of an image enhancement method in an interface switching method of a vehicle system.

The disclosure discloses a method, device and system for interface switching of a vehicle system, which is a solution for providing a customized vehicle system interface, allowing a user to operate on a customized interface of an original system interface, and Apply the new car system flexibly. For example, the new car system can provide functions that the original system can't achieve. For example, switching the new system through the interface switching circuit can not only provide a new control interface, but also enhance the video signal during video playback, or provide a new function. .

Figure 1 first schematically shows an overview of the in-vehicle operating interface.

This example shows a schematic diagram of an in-vehicle device including a display device 10 and one or more physical buttons such as control knob 101 and control button 103. In the current design, in addition to some physical control interfaces such as physical knobs (101) and buttons (103), the display device 10 can also be a touch display, as one of the options for operating various devices in the vehicle, for example, display. The device 10 can display a main screen 105 and an input interface 107 disposed at an edge or a specific position, so that the user can control the device in an operation screen, such as an audio, an air conditioner, a driving record, a movie play, a navigation screen, and the like.

The control circuit implementation of the in-vehicle operation interface can be seen in the vehicle shown in Figure 2. An embodiment of the system.

In this example, the main circuit module of the vehicle system includes a display module 21, an interface switching device 23, and a main control circuit 25, and the image processing module 29 is a processing circuit module for processing various signal sources. The car system can process signals generated by various image sources, such as other input signals 205 as shown in the figure, including common DVD video signals, television signals, driving recorders, navigation systems, and tuner. audio and video, etc., may further include a communication interface using a specific AV content acquired, such as through a universal serial bus cable (USB) and wireless Bluetooth (Bluetooth ^TM), and other data communication interface WiFi ^TM achieved. The input interface module 27 includes a traditional input interface such as a hardware button and a knob, and can also be a touch interface implemented by software.

The main control circuit 25 is the main control circuit of the entire vehicle system, and is electrically connected to the internal circuits for contacting the circuit modules in the vehicle system, for example, processing various input interfaces generated by the user from the input interface module 27. The generated signal is converted to generate a control signal (203) to the system.

The image processing module 29 is configured to process the original image signal input to the vehicle system. The main control circuit 25 connects the video signal (mainly the image signal) processed by the image processing module 29 to the display module 21, such as by the main control. The original image signal (204) output by the circuit 25, the original image signal (204) mainly refers to the image signal directly input by various input sources, and has not been processed by the interface switching device 23 disclosed in the present disclosure.

Then, both the control signal (203) and the original video signal (204) are input to the interface switching device 23 by the main control circuit 25. The interface switching device 23 can be an independent device, which is modified between the main control circuit 25 and the display module 21 in the original vehicle system, and represents the main control circuit 25, the input interface module 27 and the image processing module. The driving computer composed of the group 29, and the interface switching device 23 and the display module 21 can be separate and modularized independent devices, and each circuit module can be a separate and replaceable device. In another embodiment, the interface switching device 23 can also be embedded in the original car. The circuit module of the machine system can be integrated into other devices as a single device, but does not exclude the independent installation, update and replacement functions of the circuit modules.

According to the embodiment, the interface switching device 23 can be provided with an image enhancement module 231 implemented by a firmware, a software or a hardware. The image enhancement module 231 can be a functional module in the interface switching device 23, and is not excluded as an external plug-in. Circuit module. The interface switching device 23 is mainly an external module or device mounted on the original vehicle system, so that the user or the related system vendor can redefine the function of the operation interface provided by the original vehicle system. In this example, the interface switching device 23 will re-read the control signal (203) and convert it to a newly defined control command for the system.

For example, after the interface switching device 23 provided by the present invention is mounted, the user can still decide to use the original operation interface; or press a switch button to provide an operation that can replace the original system (such as the original). interface. The input interface module 27 connected to the main control circuit 25 in the figure is provided with a memory, wherein the car camera system displays the interface image of the display module 21 (such as the old first operation interface image, the new second operation interface). The function definition of the image and the related operation interface, including the hardware button/knob, and the interface function implemented by the software; in the present invention, the input interface module 27 further provides an input interface image which can replace the original operation interface and re The defined input interface.

When the main control circuit 25 receives the instruction of the user switching interface, it will obtain the interface image provided by the input interface module 27, including the function of redefining the original various operation interfaces of the system. The user can select and generate the control signal (203), switch the operation interface to the replaced operation interface, and cooperate with the redefined input interface function, so that the new system function can be enjoyed, and the interface switching device 23 will be redefined according to the definition. The button (hardware or software operation interface) function performs the corresponding function.

It is worth mentioning that the example of redefining the button function is often because the original operation interface is limited, and it is not enough to perform all the new functions generated by the new car system. Therefore, the original button is redefined or a new one is re-provisioned. The software operation interface is sufficient to cope with the new features of the new system. If the original button provides the work of short press once Yes, redefinition can include long press, short press twice, or long press and short press to provide a variety of operational functions.

The function of the other interface switching device 23 is to process the image signal and the control signal (203) transmitted by the main control circuit 25, such as the received original image signal (204), and switch the operation interface of the vehicle system, such as switching. The first operation interface image or the second operation interface image is included therein, and the interface function definition corresponding to the first operation interface image or the second operation interface image is switched.

Image parameter adjustment such as contrast enhancement, brightness adjustment, and tone adjustment of each frame and each pixel in the image, especially image enhancement processing, including increasing color saturation, edge sharpening, and image resolution. Enhance, etc., so that the output image exceeds the quality of the original original image signal 204. Therefore, the application interface switching device 23 of the embodiment of the present invention not only provides various key integration and control signal processing, but also provides the benefits of image enhancement.

The image signal (201) generated by the image enhancement module 231 in the interface switching device 23 is transmitted to the display module 21. The display module 21 is a circuit module including a display screen and an associated control circuit, and the image signal can be 201) Displayed. Moreover, the display module 21 can be provided with a touch screen, and becomes one of various input interfaces managed by the input interface module 27 connected to the main control circuit 25.

According to the embodiment of the invention, the interface switching device 23 can perform corresponding image signal processing according to the image display capability of the display module 21 in addition to the function of operating the interface switching. For example, the interface switching device 23 can obtain relevant information from the display module 21, including a signal (feedback signal 202) that is reflected when displaying each image, that is, the resolution of the original image signal (204) is adjusted to conform to the display capability of the related display, or according to The image saturation, contrast, and other parameters that the display can present enhance the original image signal (204).

The image enhancement module 231 can be implemented by a circuit, a firmware or a software method, analyzes the input image signal, obtains information of each frame and each pixel, and performs corresponding image enhancement processing according to the information of the display module 21, including if the original image is parsed. If the degree is insufficient, the image resolution can be increased by image insertion; if the image contrast is not good, it can be transmitted. Adjust the distribution of the gray scale of the screen, and also adjust the difference between the lowest and maximum brightness of the area.

In addition, in the image enhancement process, the currently disclosed image processing techniques can be used, such as a low dynamic range image enhancement technique, such as the Histogram-equalization based methods, retina Retinex-based methods, Gradient domain-based methods, and Tone mapping methods. The embodiment can also refer to the description of FIG. 7.

For the implementation of the above interface switching device, reference may be made to the circuit block diagram of the embodiment shown in FIG.

The interface switching device 30 is an independently operated device electrically connected to the main control circuit (32, also shown as the main control circuit 25 shown in FIG. 2) of the vehicle system, or a circuit module embedded in the vehicle system. There is a micro processing unit 301 for processing signals between the circuits in the interface of the vehicle system interface, and circuit units electrically connected to the micro processing unit 301, including an image input interface 302 for receiving signals of the self-control circuit 32, and signal input. The interface 303, and a signal switching unit 304 that performs interface image switching and an image enhancement module 305 that performs image enhancement technology.

According to the user's choice, for example, inputting a selection signal through the signal input interface, the signal switching unit 304 switches the original (first operation interface) of the vehicle system and the replaced new operation interface (second operation interface) image and related control signals; The image processed by the image enhancement module 305 (such as a television, a video, a navigation screen, a driving record screen, etc.) can be output to the display module 34 through the image output interface 306. The display module 34 can be original in the vehicle system. Display and related circuits. The interface switching device 30 also receives the signal fed back from the display module 34 through the feedback signal interface 307, including the image display and processing capability of the display module 34. Therefore, the image enhancement module 305 can adjust the output image signal accordingly. Image parameters.

The interface switching device 30 is mainly configured to receive the image signal and the control signal transmitted by the main control circuit (32), and switch the image of the device 30 through the interface, as shown in the figure. The input interface 302 is received by the signal input interface 303, and the signals are processed by the micro processing unit 301, including the control signal generated by the redefined operation interface, input by the signal input interface 303, and input by the main control circuit 3. The original image signal, or an interface image including the original operation interface, may be input by the image input interface 302.

That is, the image signal received by the interface switching device 30 via the image input interface 302 includes the first operation interface image of the vehicle system and the second operation interface image of the first operation interface image, and the first operation interface image is as follows. The original or previously generated operation interface image of the vehicle system; and the second operation interface image instead of the interface image of the redefined interface function may be identical to the first operation interface image or rewritten. In conjunction with switching to a new operation interface (such as the second operation interface image), the signal input interface 303 is a control signal generated by receiving an interface function defined by the original first operation interface image; and the receiving operation is based on the new second operation. The control signals generated by the interface function redefined by the interface image, such as the redefined key/knob functions.

The image signals input to the interface switching device 30 via the video input interface 302 include a television signal, a DVD video signal, a navigation screen signal, a driving record signal, etc., and may also include a digital image signal obtained by a specific communication interface (such as USB). The image signal adjusted by the image enhancement module 305 and the first operation interface image or the second operation interface image switched by the signal switching unit 304 are output to the display module 34 via the image output interface 306.

It is worth mentioning that the first operation interface image may be a static or dynamic image of the original interface of the original vehicle system, and includes various operation interface functions originally set; and the first operation interface image may be represented as a second operation. The old interface image other than the interface image; the second operation interface image indicates a new one to replace the first operation interface image, including the redefined interface function.

FIG. 4 shows one of the processes of an embodiment of the interface switching method of the vehicle system of the present invention.

The step flow includes first starting the vehicle system (step S401), wherein the main control circuit is an input interface of the scan input interface module (step S403), in particular, the input interface module connected to the main control circuit stores and supports the first An operation interface image or a second operation interface image, and a corresponding interface function definition. The interface functions that are redefined in comparison to the second operating interface image include redefining the functionality of the physical buttons or knobs of the vehicle system; and the redefined interface functions may include redefining a physical button or knob operation when performing a function. The way, such as long press, short press, or continuous press, may result in new features due to redefinition.

Then, an interface definition is loaded (step S405), including loading an interface function definition corresponding to the first operation interface image or the second operation interface image according to the user selection or the system preset, and performing the first operation simultaneously The interface function definition of the interface image or the second operation interface image, and finally executing the redefined input interface module according to the selected result (step S407), so that the operation interface of the vehicle system, including the physical button or the software input interface, is compared To a redefined function that can be supported.

In an automatic program, if the system scans that the input interface module has loaded a new second operation interface image and a new interface function definition, the new interface and function are preferentially defined as the preset values for booting; If the system does not scan to replace the old (or existing) interface image and definition, the first interface image and the corresponding interface function definition are activated.

FIG. 5 is a flow chart of an embodiment of an interface switching method after system startup.

After the execution of a specific operation interface (the first or second operation interface), according to the user operation, the main control circuit of the system receives the interface input signal (step S501), and the signal is transmitted to the interface switching device, and the interface switching device parses the signal. (Step S503), and determine whether the input signal is the redefined interface? (Step S505).

Wherein, when the operation interface loaded after the system is started is the first operation interface image, the interface function definition corresponding to the first operation interface image is simultaneously loaded; when the loading operation interface is the second operation interface image, the simultaneous loading is performed. Corresponding to the second operation interface image Interface function definition.

When the signal is from the old interface definition (No), step S507 is executed to perform the original definition function, that is, the first operation interface signal under the interface function definition corresponding to the first operation interface image is received, that is, according to the corresponding Define the processing of the first operating interface signal.

If the signal is new and replaces the old interface definition (Yes), the redefined function will be executed (step S509), that is, when the second operation interface signal corresponding to the interface function definition corresponding to the second operation interface image is received, The second operation interface signal is processed according to the corresponding definition.

However, in an embodiment, the user can still control the vehicle system switching operation interface according to his own choice, as shown in FIG. 6 , which illustrates an embodiment of processing image enhancement in the interface switching method of the vehicle system of the present invention.

Initially, the vehicle system is activated by the first operation interface, wherein the circuit processes the signal generated by the first operation interface (step S601), and displays the first operation interface image on the display screen (step S603).

After that, the main control circuit of the system receives the interface switching signal (step S605), for example, the user decides to switch to the second operation interface through the operation interface. At this time, when the new interface environment is presented, the display of the display screen can be synchronously determined. The parameter (step S607) is to perform an image enhancement step (step S609), and the image enhancement is such as the process flow described in FIG. Then, the second operation interface signal is processed (step S611) and the second operation interface is switched (step S613).

7 is a flow chart showing an image enhancement method in the interface switching method of the vehicle system of the present invention.

Obtaining the ratio of the brightest and darkest regions of the image (step S701), and then obtaining the dynamic range according to the ratio of the brightest (over exposure) and the darkest (under exposure) in the image frame (dynamic range) (Step S703).

Further, for Low Dynamic Range (LDR) image enhancement (step S705), a high dynamic range and a low dynamic range are obtained (step S707), but still Keep the image contrast.

Thereafter, various image parameters are adjusted, such as adjusting the brightness (step S709), adjusting the contrast (step S711), adjusting the color saturation (step S713), and generating the adjusted image (step S715).

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent structural changes that are made by using the specification and the contents of the present invention are equally included in the present invention. Within the scope, it is combined with Chen Ming.

30‧‧‧Interface switching device

301‧‧‧Microprocessing unit

302‧‧‧Image input interface

303‧‧‧Signal input interface

304‧‧‧Signal switching unit

305‧‧‧Image Enhancement Module

306‧‧‧Image output interface

307‧‧‧ feedback signal interface

32‧‧‧Master circuit

34‧‧‧Display module

Claims (9)

An interface switching device for a vehicle system includes: a micro processing unit that processes signals between circuits in the vehicle system interface switching device; an image input interface electrically connected to the micro processing unit for receiving image signals, The received image signal includes a first operation interface image of the vehicle system and a second operation interface image replacing the first operation interface image; a signal input interface electrically connected to the micro processing unit for receiving control The signal includes a control signal generated by an interface function defined by the operation of the first operation interface image, or a control signal generated by an interface function defined by the second operation interface image, and a signal switching unit electrically connected to the micro processing unit The first operation interface image and the second operation interface image are switched, and an image enhancement module is electrically connected to the micro processing unit for adjusting image parameters of the image signal; and an image output interface, For outputting the first operation interface image or the second operation interface image, and enhancing the mode through the image Adjusting the image signal to a display module; wherein the interface function redefined corresponding to the second operation interface image comprises redefining a function of a physical button or a knob of the vehicle system, and the redefined interface function further includes Redefining the manner in which the physical button or knob operates when a function is performed to replace the second operator interface with a redefined interface function and perform the corresponding function in conjunction with the redefined function of the physical button or knob. The interface switching device of the vehicle system of claim 1, further comprising a feedback signal interface, wherein the interface switching device obtains image display and processing capability of the display module via the feedback signal interface. The interface switching device of the vehicle system of claim 2, wherein the image enhancement module adjusts image parameters of the image signal according to the image display and processing capability of the display module by the feedback signal interface. The interface switching device of the vehicle system of claim 3, wherein the image signal processed by the image enhancement module is a television signal, a video signal, a navigation screen signal input from the image input interface to the interface switching device, Driving record signal or digital video signal. A vehicle system for applying the interface switching device according to claim 1, comprising: a main control circuit for contacting the control circuit of each circuit module; an image processing module electrically connecting the main control a circuit for processing an original image signal input to the vehicle system; an input interface module electrically connected to the main control circuit, and a memory body for recording an input interface implemented by a hardware or a software of the vehicle system, at least Providing a definition of the first operation interface image and the second operation interface image and the interface function of the vehicle system; the interface switching device is electrically connected to the main control circuit, and receives the image signal and control transmitted by the main control circuit And switching an operation interface of the vehicle operating system to the first operation interface image or the second operation interface image, and switching an interface function definition corresponding to the first operation interface image or the second operation interface image; the interface switching The device is provided with the image enhancement module for adjusting image parameters of the image signal; and the display module receives and displays the image switching device And the first operation interface image and the second operation interface image obtained by the input interface module; wherein the first operation interface image is provided by the input interface module and the second operation Interface image, and definition of the interface function to compare the second operation interface image, and the redefined interface function includes redefining the function of the physical button or knob of the vehicle system The redefinition of the interface function further includes redefining the manner in which the physical button or knob operates when a function is performed; and the interface switching device replaces the second interface with the redefined interface function, with a redefined The physical button or knob operation performs the corresponding function. The vehicle system of claim 5, wherein the main control circuit, the input interface module and the image processing module comprise a driving computer, the interface switching device and the display module are separately arranged and modularized. Separate device. The vehicle system of claim 5, wherein the main control circuit, the input interface module and the image processing module comprise a driving computer, the interface switching device and the display module are a single device integrating all circuits . An interface switching method of the vehicle system according to claim 5, comprising: starting the vehicle system; scanning the first operation interface image or the second operation interface image supported by the input interface module; loading the pair The interface function definition of the first operation interface image or the second operation interface image; and the interface function definition of the first operation interface image or the second operation interface image. The interface switching method of the vehicle system of claim 8, further comprising: when the loading operation interface is the first operation interface image, loading the interface function definition corresponding to the first operation interface image; The loading operation interface is the second operation interface image, and the interface function definition corresponding to the second operation interface image is simultaneously loaded; when the first operation interface signal corresponding to the interface function definition corresponding to the first operation interface image is received Processing the first operation interface signal according to the corresponding definition; and when receiving the interface function definition corresponding to the second operation interface image The second operation interface signal processes the second operation interface signal according to the corresponding definition.