CN112309273A - Vehicle-mounted LED display system and vehicle display control system - Google Patents
Vehicle-mounted LED display system and vehicle display control system Download PDFInfo
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- CN112309273A CN112309273A CN202011364326.4A CN202011364326A CN112309273A CN 112309273 A CN112309273 A CN 112309273A CN 202011364326 A CN202011364326 A CN 202011364326A CN 112309273 A CN112309273 A CN 112309273A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The embodiment of the invention discloses a vehicle-mounted LED display system and a vehicle-mounted display control system applying the center console. The in-vehicle LED display system includes, for example: the vehicle-mounted LED display screen comprises a data transmission interface connected with a vehicle central control system, an embedded processor connected with the data transmission interface and a vehicle-mounted LED display screen connected with the embedded processor; the embedded processor acquires display information from a vehicle central control system through the data transmission interface, analyzes the display information to obtain display data, and sends the display data to the vehicle-mounted LED display screen for display; and/or the embedded processor acquires the display screen control information from the vehicle central control system through the data transmission interface, analyzes the display screen control information to obtain a display screen control instruction, and controls the display of the vehicle-mounted LED display screen through the display screen control instruction. The embodiment of the invention can improve the passenger experience and the market competitiveness of the vehicle.
Description
Technical Field
The invention relates to the field of vehicle front-mounted technology and display technology, in particular to a vehicle-mounted LED display system and a vehicle display control system.
Background
Currently, LED (Light Emitting Diode) display devices are used in various fields due to their advantages such as low cost, low power consumption, high visibility, and free assembly. In the field of vehicles, such as automobiles, there are many parts of information that need to be reminded or informed to passengers during the operation of automobiles, such as get-off reminding, seat belt fastening reminding, and the like. Similar warning usually reminds through modes such as pronunciation and lamp sudden strain of a muscle at present, and is less to the content that the passenger who sits in the front passenger seat reminded and advised, does not even remind, and passenger experience is relatively poor, and market competition is low.
Disclosure of Invention
Therefore, to overcome at least some of the defects and shortcomings in the prior art, embodiments of the present invention provide an on-board LED display system and a vehicle display control system to improve passenger experience and vehicle market competitiveness.
In one aspect, an embodiment of the present invention provides a vehicle-mounted LED display system, including: the system comprises a data transmission interface connected with a vehicle central control system, an embedded processor connected with the data transmission interface and a vehicle-mounted LED display screen connected with the embedded processor; the embedded processor acquires display information from the vehicle central control system through the data transmission interface, analyzes the display information to obtain display data, and sends the display data to the vehicle-mounted LED display screen for display; and/or the embedded processor acquires display screen control information from the vehicle central control system through the data transmission interface, analyzes the display screen control information to obtain a display screen control instruction, and controls the display of the vehicle-mounted LED display screen through the display screen control instruction.
According to the embodiment of the invention, the vehicle-mounted LED display system is arranged, so that the display of corresponding information such as animation, pictures, characters (including Chinese and English) and the like can be realized, passengers sitting on the passenger seat can be pleased and reminded, the grade and market competitiveness of a vehicle are improved, and the riding experience of the passengers is improved.
In an embodiment of the present invention, the vehicle-mounted LED display system further includes a power interface respectively connected to the embedded processor and the vehicle-mounted LED display screen; a first power supply control circuit is arranged between the power supply interface and the vehicle-mounted LED display screen and is used for controlling the on-off of a circuit from the power supply interface to the vehicle-mounted LED display screen; the first power supply control circuit is also connected to a general input/output interface of the embedded processor.
In one embodiment of the present invention, the first power supply control circuit includes a first switch circuit in which a relay is provided.
In an embodiment of the invention, the embedded processor further receives and analyzes display system sleep information sent by the vehicle central control system to obtain a sleep instruction, and controls the vehicle-mounted LED display system to enter a sleep mode under the control of the sleep instruction; the standby current of the vehicle-mounted LED display system in the sleep mode is not more than 0.1 milliampere, and the starting time of the vehicle-mounted LED display system is not more than 1 second.
In one embodiment of the invention, the vehicle-mounted LED display system further comprises a microcontroller, wherein the microcontroller is connected between the data transmission interface and the embedded processor and is connected to the power interface; the microcontroller is connected with the data transmission interface through a controller local area network bus protocol and connected with the embedded processor through a serial bus protocol; the microcontroller acquires the display information and/or the display screen control information from the vehicle central control system through the data transmission interface and transmits the display information and/or the display screen control information to the embedded processor.
In an embodiment of the invention, the microcontroller further receives and analyzes display system sleep information sent by the vehicle central control system through the data transmission interface to obtain a sleep instruction, and controls the vehicle-mounted LED display system to enter a sleep mode under the control of the sleep instruction; the standby current of the vehicle-mounted LED display system in the sleep mode is not more than 0.1 milliampere, and the starting time of the vehicle-mounted LED display system is not more than 1 second.
In an embodiment of the present invention, the vehicle-mounted LED display system further includes a second power control circuit and a third power control circuit, the second power control circuit is connected between the power interface and the vehicle-mounted LED display screen to control on/off of a circuit from the power interface to the vehicle-mounted LED display screen, the third power control circuit is connected between the power interface and the embedded processor to control on/off of a circuit from the power interface to the embedded processor, and the second power control circuit and the third power control circuit are respectively connected to a general input/output interface of the microprocessor.
In an embodiment of the invention, the vehicle-mounted LED display screen includes an LED lamp panel, the LED lamp panel includes a plurality of LED lamp points, a distance between every two adjacent LED lamp points is P1.2, and a resolution of the vehicle-mounted LED display screen is 320 × 32.
In another aspect, a vehicle display control system according to an embodiment of the present invention is a vehicle display control system provided on a center console of a vehicle, the center console including a center control system panel and a front passenger seat panel, the vehicle display control system including: the vehicle-mounted LED display system is arranged on the copilot panel; and the vehicle central control system is arranged on the central control system panel and is connected with the vehicle-mounted LED display system.
In one embodiment of the invention, the vehicle central control system comprises a central control processor and a vehicle state sensing circuit, wherein the central control processor is connected with the vehicle state sensing circuit and is connected with the data transmission interface of the vehicle-mounted LED display system; the vehicle state sensing circuit senses the real-time working state of the vehicle and feeds the real-time working state back to the central control processor, and the central control processor sends corresponding display screen control signals and/or display information to the vehicle-mounted LED display system according to the real-time working state.
The technical scheme can have the following advantages or beneficial effects: according to the embodiment of the invention, the vehicle-mounted LED display system is arranged, so that the display of corresponding information such as animation, pictures, characters (including Chinese and English) and the like can be realized, passengers sitting on the passenger seat can be pleased and reminded, the grade and market competitiveness of a vehicle are improved, and the riding experience of the passengers is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.
Fig. 2 is a schematic view of the arrangement of the vehicle display control system shown in fig. 1 on a center console.
Fig. 3 is a schematic structural diagram of an on-vehicle LED display system shown in fig. 2.
Fig. 4 is a schematic structural diagram of another vehicle-mounted LED display system shown in fig. 2.
Fig. 5 is a schematic structural diagram of another vehicle-mounted LED display system shown in fig. 2.
Fig. 6 is a schematic structural diagram of a vehicle central control system shown in fig. 1.
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.
Fig. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention. As shown in fig. 1, the vehicle 10 includes, for example: center console 100, vehicle display control system 300, primary driver seat 400, and secondary driver seat 200. Typically, the center console 100, the vehicle display control system 300, the primary driver seat 400, and the secondary driver seat 200 are all disposed in the cabin in the front portion of the vehicle 10, with the center console 100 being disposed opposite the primary driver seat 400 and the secondary driver seat 200. Of course, in other vehicles, the positions of the primary driver's seat 400 and the secondary driver's seat 200 may be set in other manners, and the primary driver's seat 400 is not necessarily on the left side of the vehicle 10, and the secondary driver's seat 200 is not necessarily on the right side of the vehicle 10. The vehicle display control system 300 is provided on the center console 100.
Specifically, as shown in fig. 2, the console 100 may include, for example: a dashboard panel 140, a co-driver deck 110, and a center control system panel 130. The center control system panel 130 is disposed between the instrument panel 140 and the passenger compartment panel 110. The instrument panel 140 is opposed to the primary driver seat 400, and the secondary driver seat panel 110 is opposed to the secondary driver seat 200. Typically, an instrument panel such as a vehicle speed instrument panel, mileage dial, etc., may be provided on the instrument panel 140. The vehicle display control system 300 includes a vehicle center control system 310 and an on-vehicle LED display system 120 connected to the vehicle center control system 310, wherein the vehicle center control system 300 is disposed on a center control system panel 130, which may be provided with, for example, a touch LCD display screen and various control buttons such as a console button, an audio volume button, an air conditioning button, and the like. The arrangement can be made according to the scheme in the prior art, and the specific layout and structure are not described in detail here. The vehicle-mounted LED display system 120 is arranged on the passenger seat panel 110, so that passengers sitting on the passenger seat 200 can better obtain vehicle reminding information through the vehicle-mounted LED display system 120, the LED display of the reminding information is realized, the passengers sitting on the passenger seat 200 can more conveniently and intuitively obtain the vehicle reminding information, the grade and the quality of the vehicle are improved, and the market competitiveness of the vehicle is also improved.
Further, as shown in fig. 3, the in-vehicle LED display system 120 may include, for example: data transmission interface 121, embedded processor 122, vehicle-mounted LED display screen 123 and power interface 124. The data transmission interface 121 is connected to the embedded processor 122, the embedded processor 122 is connected to the vehicle-mounted LED display screen 123, and the embedded processor 122 and the vehicle-mounted LED display screen 123 are respectively connected to the power interface 124. The data transmission interface 121 may be, for example, a connector such as a pin header, a bus header, etc., which is connected to the vehicle center control system 310 through a Controller Area Network (CAN) bus with the vehicle center control system 310 to obtain display information and/or control information from the vehicle center control system 310 of the vehicle center control system 310. The embedded processor 122 may be, for example, an ARM core-based processor, and is configured to analyze and process the display screen control information transmitted from the data transmission interface 121 to obtain a display screen control instruction, and control the vehicle-mounted LED display screen 123 according to the display screen control instruction, for example, to control brightness, contrast, and the like of the vehicle-mounted LED display screen 123. In addition, the embedded processor 122 also performs parsing, image processing such as zooming and the like on the display information transmitted from the data transmission interface 121, such as characters and pictures to be displayed, and then converts the processed data into display data and control signals in TTL format, and sends the display data and control signals to the on-vehicle LED display screen 123 for display, so that the passenger sitting in the passenger seat 200 can clearly and intuitively learn the relevant information. Specifically, the power interface 124 may be, for example, a power terminal or other connection interface, which is respectively connected to the embedded processor 122 and the vehicle-mounted LED display screen 123 to supply power to the embedded processor 122 and the vehicle-mounted LED display screen 123. The power interface 124 is used to access power from a vehicle's power source, such as a vehicle power management module. In addition, when the vehicle LED display screen 123 does not need to display, the vehicle LED display system 120 may enter a standby state (or sleep state) to reduce power consumption. In the standby state, the standby current of the on-board LED display system 120 is not more than 0.1ma, and the start-up time is not more than 1 second, so as to meet the requirements of the vehicle.
Further, as shown in fig. 4, the in-vehicle LED display system 120 may further include a first power control circuit 125. The first power control circuit 125 is connected between the power interface 124 and the vehicle-mounted LED display screen 123, and the embedded processor 122 is configured with a General Purpose input/output interface (GPIO), and the first power control circuit 125 is further connected to the General Purpose input/output interface of the embedded processor 122, for example. Specifically, the first power control circuit 125 may include, for example, a first switch circuit (not shown), which may be provided with, for example, a relay or other switch circuit, and may receive an external input signal to control the on/off of the circuit. The first power control circuit 125 receives a control signal sent by the general purpose input/output interface of the embedded processor 122, and controls the on/off of a circuit from the power interface 124 to the on-vehicle LED display screen 123 according to the received signal sent by the embedded processor 122, so as to control the on/off of the on-vehicle LED display screen 123.
Further, as shown in FIG. 4, in-vehicle LED display system 120 may also include non-volatile storage 126. The non-volatile memory 126 is coupled to the embedded processor 122. The non-volatile memory 126 may be, for example, a FLASH memory (FLASH memory), which may store program data (i.e., display information) such as various pictures or text data, and may be called and processed by the embedded processor 122, and finally convert the processed data into display data and control signals in a TTL format, and send the display data and control signals to the on-board LED display screen 123 for display.
According to the embodiment of the invention, the vehicle-mounted LED display system is arranged on the copilot seat panel on the center console, so that the display of corresponding information such as animation, pictures, characters (including Chinese and English) and the like can be realized, passengers sitting on the copilot seat can be pleased and reminded, the grade and market competitiveness of a vehicle are improved, and the riding experience of the passengers is improved.
Specifically, the vehicle-mounted LED display system may include, for example, the following two operation modes:
1) the working mode is as follows: when the automobile is started or in a scene needing to be displayed by the LED display screen, the central control system 310 of the automobile sends a wake-up command through the CAN bus, after the embedded processor is awakened, the starting time of the whole vehicle-mounted LED display system 120 is less than 1 second, namely within 1 second, the power supply of the screen body of the vehicle-mounted LED display screen 123 is started, and data display of the LED display screen, such as program picture display, is carried out;
2) sleep mode (or standby mode): the embedded processor is responsible for providing a CAN bus protocol to receive control information and/or display information sent by the vehicle center control system 310 of the vehicle center control system 310, for example, when the vehicle is about to be shut down or in a certain scene, the embedded processor 122 receives a sleep (or standby) command sent by the vehicle center control system 310 of the vehicle center control system 310, and the embedded processor 122 generates a control signal according to the sleep command and sends the control signal to the first power control circuit 125 to disconnect a power path, so as to turn off a screen power supply of the on-vehicle LED display screen 123 and turn on a CAN bus wake-up function. Then, the embedded processor 122 itself will enter the sleep mode to wait for the vehicle central control system 310 to wake up; that is, the whole vehicle-mounted LED display system 120 enters a sleep (or standby) mode, and the standby current of the vehicle-mounted LED display system 120 cannot exceed 0.1mA during sleep.
More specifically, the embedded processor 122 transmits display information and/or display screen control information according to the vehicle center control system 310, e.g., a touch screen, such as a PAD, thereon. The embedded processor 122 receives the display information and/or the display screen control information sent by the CAN bus protocol, and completes corresponding information display and display screen control. The displayed content includes animation, pictures, Chinese, English, etc.
The in-vehicle LED display system 120 may also have word stocks available from it, such as GB2312 and ASCII word stocks. The word stock is stored in the nonvolatile memory 126, such as FLASH, for example, the PAD of the vehicle central control system 310 sends a character code, and the embedded processor 122 extracts corresponding text dot matrix data from FLASH according to the character code and sends the text dot matrix data to the on-vehicle LED display screen 123 for displaying. The text size may be, for example, 16, 24, etc., the font may be, for example, song style, regular style, black style, etc., the text supports alignment modes such as left, middle, right alignment, etc., and supports display modes such as left translation, right translation, static display, blinking, random, left and right close, left and right folio, horizontal lily, etc., and the text display speed and the text dwell time may be controlled and adjusted.
Moreover, the embedded processor also supports multi-region split screen display of the vehicle-mounted LED display screen, namely the split screen display of the vehicle-mounted LED display screen. And programs such as pictures, animations and the like in each subarea of the vehicle-mounted LED display screen can be updated independently and are not influenced by other subareas. The vehicle-mounted LED display screen can also support 256-level brightness adjustment, and can be adjusted along with backlight control of the vehicle central control system 310 or independently.
The embedded processor 122 supports CAN bus wakeup, and the embedded processor 122 receives and processes data on the CAN bus from the vehicle center control system 310. The data from the vehicle center control system 310 includes, for example: 1) program data information (i.e., display information) to be displayed on the on-board LED display screen 123; 2) control information (i.e., display screen control information) for the on-board LED display screen 123. The embedded processor 122 directly obtains, analyzes and processes program data to be displayed on the vehicle-mounted LED display screen 123 through the data transmission interface 121. For the display screen control information of the screen body of the vehicle-mounted LED display screen 123, for example, the brightness adjustment information of the vehicle-mounted LED display screen 123, the embedded processor 122 directly analyzes the display screen control information to obtain a brightness adjustment instruction, and controls the vehicle-mounted LED display screen 123 according to the brightness adjustment instruction; for the control information data of the power supply of the vehicle-mounted LED display screen 123, the embedded processor 122 directly sends a control signal to the first power supply control circuit 125 after obtaining the control information data, so as to control the screen body of the vehicle-mounted LED display screen 123.
The following exemplifies the contents displayed on the vehicle-mounted LED display screen:
1. when the vehicle is powered on, the vehicle-mounted LED screen 123 sequentially displays: 1. welcome (animated); 2. weather today: sunny, 25 ℃; 3. happy festival of national celebration; when the whole vehicle is powered off, the following display modes are displayed in sequence: 1. the getting-off is safe; 2. bye (in animation);
2. after the vehicle starts, if the safety belt is not fastened by the person on the primary and/or secondary driver seat, the red alarm icon and the safety warning words are played on the vehicle-mounted LED display screen 123 in a circulating rolling mode to remind the related person to fasten the safety belt;
3. when a Bluetooth call is made, the vehicle-mounted LED display screen 123 displays an icon in the call; when music is played, the vehicle-mounted LED display screen 123 displays a music time domain frequency spectrum waveform;
4. the display contents of holidays (spring festival, afternoon festival, national festival, mid-autumn festival and the like) are preset in the FLASH, the embedded processor 122 judges whether the current date is the preset holiday, and when the holiday is preset, the embedded processor 122 controls the vehicle-mounted LED display screen 123 to display holiday blessings, which can be embodied in the forms of characters, pictures, animations and the like;
5. displaying weather states such as air conditioning air volume/temperature, time, weather and the like on the vehicle-mounted LED display screen 123 in a text + picture mode, and refreshing at regular intervals;
6. when the vehicle accelerates, the embedded processor 122 acquires the acceleration state of the vehicle, and displays the vehicle speed on the vehicle-mounted LED display screen 123 in the form of icons and characters;
7. when the vehicle central control system 310 detects that the seat belt of the passenger seat is in an unfastened state and has a door opening action, the embedded processor 122 controls the vehicle-mounted LED display screen 123 to display related contents in a text + picture mode so as to prompt passengers to pay attention to the coming vehicle from the side and the rear.
In addition, in another embodiment of the present invention, as shown in fig. 5, the in-vehicle LED display system 120 may further include a microcontroller 127, wherein the microcontroller 127 is connected between the data transmission interface 121 and the embedded processor 122. The microcontroller is connected to the data transmission interface 121 via a controller area network bus protocol and to the embedded processor 122 via a serial bus protocol. The power interface 124 is also connected to the microcontroller 127 for supplying power thereto. The microcontroller 127 may be, for example, an MCU, and acquires display screen control information from the vehicle central control system 310 through the data transmission interface 121, and transparently transmits the display screen control information to the embedded processor 122, so that the embedded processor 122 analyzes the display screen control information to obtain a display screen control instruction, and sends the display screen control instruction to the vehicle-mounted LED display screen 123 for control, for example, to control the brightness and contrast of the vehicle-mounted LED display screen 123. In addition, the microcontroller 127 also transmits display information transmitted from the data transmission interface 121, such as words and pictures to be displayed, to the embedded processor 122, and the embedded processor 122 performs processing such as zooming on the received word and picture data, converts the processed data into display data and control signals in TTL format, and sends the display data and control signals to the on-board LED display screen 123 for display, so that a passenger sitting in the front passenger seat 200 can clearly and intuitively learn related information. In addition, when the on-board LED display screen 123 does not need to display, a standby state (or sleep state) may be entered to reduce power consumption of the on-board LED display system 120. The standby current of the vehicle-mounted LED display system 120 is not more than 0.1 milliampere, and the starting time of the vehicle-mounted LED display system 120 is not more than 1 second.
As mentioned above, as shown in fig. 5, the on-board LED display system 120 further includes, for example, a second power control circuit 128 and a third power control circuit 129. The second power control circuit 128 is connected between the data transmission interface 124 and the vehicle-mounted LED display screen 123, and the third power control circuit 129 is connected between the data transmission interface 124 and the embedded processor 122. A general-purpose input/output interface is configured on the microprocessor 127, and the second power control circuit 128 and the third power control circuit 129 are respectively connected to the general-purpose input/output interface of the microprocessor 127. Specifically, the second power control circuit 128 and the third power control circuit 129 may each include, for example, a switch circuit (not shown), which may be, for example, a relay or other switch circuit, and may receive an external input signal to control the on/off of the circuit. The second power control circuit 128 receives signals sent by the microcontroller 127 through the general input/output interface, and controls the on/off of a circuit from the power interface 124 to the on-board LED display screen 123, so as to control the on/off of the on-board LED display screen 123. The third power control circuit 129 receives signals from the microcontroller 127 through the gpio interface, and controls the on/off of the circuit from the power interface 124 to the embedded processor 122, so as to control the on/off of the embedded processor 122. Therefore, the microcontroller 127 can control the power consumption of the embedded processor 122 and the vehicle-mounted LED display screen 123, and the system power consumption is saved.
In addition, the on-vehicle LED display screen 123 may include, for example, an LED lamp panel including, for example, a plurality of LED lamp points (or LED lamp beads). The distance between every two adjacent LED lamp points is P1.2. The resolution of the on-board LED display screen may be, for example, 320 × 32. Of course, the resolution and the dot spacing of the on-board LED display screen 123 may be other values, and the invention is not limited thereto. And the LED display screen with small resolution is adopted for displaying, so that the power consumption of the whole vehicle can be reduced. Of course, it may be adjusted according to the inner space of the vehicle 10 and the size of the passenger compartment panel 110.
Further, as shown in fig. 6, the vehicle center control system 310 may, for example, include a center control processor 410 and a vehicle state sensing circuit 420. The central processor 410 is connected to the vehicle condition sensing circuit 420. The central control processor 410 is connected to the data transmission interface 121 of the vehicle-mounted LED display system 120.
The central processor 410 is, for example, an embedded processor, an MCU, a DSP, or other processor, and is a processor capable of acquiring a corresponding signal and performing corresponding processing according to the signal. The vehicle state sensing circuit 420 includes, for example, a plurality of state sensing modules, such as a seat belt state sensing module, a door state sensing module, a weather condition sensing module, and the like. The vehicle state sensing circuit 420 senses a real-time working state of the vehicle and feeds the real-time working state back to the central control processor 410, and the central control processor 410 sends corresponding display screen control information and/or display information to the vehicle-mounted LED display system 120 for display according to the real-time working state.
When the sleep mode needs to be entered, the central control processor 410 sends the sleep information of the display system to the embedded processor or the microcontroller of the vehicle-mounted LED display system 120, so that the embedded processor or the microcontroller controls the vehicle-mounted LED display system 120 to enter the sleep mode.
According to the embodiment of the invention, the vehicle-mounted LED display system is arranged on the center console, so that the display of corresponding information such as animation, pictures, characters (including Chinese and English) and the like can be realized, passengers sitting on the passenger seat can be pleased and reminded, the grade and market competitiveness of the vehicle are improved, and the riding experience of the passengers is improved.
Specifically, the vehicle-mounted LED display system may include, for example, the following two operation modes:
1) sleep mode (or standby mode): the Microcontroller (MCU)127 acquires a control instruction and display data from the vehicle central control system 310 through a CAN bus protocol; for example, when the vehicle is about to shut down or is in a certain scene, a sleep command sent by the vehicle central control system 310 is received, the MCU turns off the screen power of the vehicle-mounted LED display screen 123 according to the sleep command, turns off the power of the embedded processor 122, and turns on the CAN bus wake-up function; then, the vehicle enters a sleep mode to wait for the vehicle central control system 310 to be in an awakened state, that is, the whole vehicle-mounted LED display system 120 enters the sleep (or standby) mode; in the sleep mode, the standby current of the entire vehicle-mounted LED display system 120 cannot exceed 0.1 mA;
2) when the vehicle is started or needs to be displayed by the vehicle-mounted LED display screen 123, the vehicle central control system 300 sends a wake-up command through the CAN bus, after the MCU is woken up, the start time of the whole vehicle-mounted LED display system 120 is less than 1 second, namely the second power supply control circuit and the third power supply control circuit are controlled to respectively turn on the screen power supply of the vehicle-mounted LED display screen 123 and the power supply of the embedded processor 121 within 1 second, so as to perform corresponding display.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and used in combination without conflict between technical features and structures, and without departing from the purpose of the present invention.
Furthermore, it should be appreciated that in the embodiments provided by the present invention, the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An on-vehicle LED display system, comprising: the system comprises a data transmission interface connected with a vehicle central control system, an embedded processor connected with the data transmission interface and a vehicle-mounted LED display screen connected with the embedded processor;
the embedded processor acquires display information from the vehicle central control system through the data transmission interface, analyzes the display information to obtain display data, and sends the display data to the vehicle-mounted LED display screen for display;
and/or the embedded processor acquires display screen control information from the vehicle central control system through the data transmission interface, analyzes the display screen control information to obtain a display screen control instruction, and controls the display of the vehicle-mounted LED display screen through the display screen control instruction.
2. The vehicle-mounted LED display system of claim 1, further comprising a power interface connected to the embedded processor and the vehicle-mounted LED display screen, respectively; a first power supply control circuit is arranged between the power supply interface and the vehicle-mounted LED display screen and is used for controlling the on-off of a circuit from the power supply interface to the vehicle-mounted LED display screen; the first power supply control circuit is also connected to a general input/output interface of the embedded processor.
3. The vehicle-mounted LED display system of claim 2, wherein the first power control circuit comprises a first switch circuit, and a relay is disposed in the first switch circuit.
4. The vehicle-mounted LED display system of claim 1, wherein the embedded processor further receives and analyzes display system sleep information sent by the vehicle central control system to obtain a sleep instruction, and controls the vehicle-mounted LED display system to enter a sleep mode under the control of the sleep instruction; the standby current of the vehicle-mounted LED display system in the sleep mode is not more than 0.1 milliampere, and the starting time of the vehicle-mounted LED display system is not more than 1 second.
5. The vehicle mounted LED display system of claim 1 further comprising a microcontroller connected between said data transmission interface and said embedded processor and to said power interface; the microcontroller is connected with the data transmission interface through a controller local area network bus protocol and connected with the embedded processor through a serial bus protocol; the microcontroller acquires the display information and/or the display screen control information from the vehicle central control system through the data transmission interface and transmits the display information and/or the display screen control information to the embedded processor.
6. The vehicle-mounted LED display system of claim 5, wherein the microcontroller further receives and analyzes display system sleep information sent by the vehicle central control system through the data transmission interface to obtain a sleep instruction, and controls the vehicle-mounted LED display system to enter a sleep mode under the control of the sleep instruction; the standby current of the vehicle-mounted LED display system in the sleep mode is not more than 0.1 milliampere, and the starting time of the vehicle-mounted LED display system is not more than 1 second.
7. The vehicle-mounted LED display system according to claim 6, further comprising a second power control circuit and a third power control circuit, wherein the second power control circuit is connected between the power interface and the vehicle-mounted LED display screen to control the on/off of the circuit from the power interface to the vehicle-mounted LED display screen, the third power control circuit is connected between the power interface and the embedded processor to control the on/off of the circuit from the power interface to the embedded processor, and the second power control circuit and the third power control circuit are respectively connected to the general input/output interface of the microprocessor.
8. The vehicle-mounted LED display system of claim 1, wherein the vehicle-mounted LED display screen comprises an LED lamp panel, the LED lamp panel comprises a plurality of LED lamp points, the distance between every two adjacent LED lamp points is P1.2, and the resolution of the vehicle-mounted LED display screen is 320 x 32.
9. A vehicle display control system provided on a center console of a vehicle, the center console including a center control system panel and a front passenger seat panel, characterized by comprising:
the on-vehicle LED display system of any one of claims 1 to 8, provided on the passenger seat panel; and
and the vehicle central control system is arranged on the central control system panel and is connected with the vehicle-mounted LED display system.
10. The vehicle display control system according to claim 1, wherein the vehicle central control system comprises a central control processor and a vehicle state sensing circuit, the central control processor is connected with the vehicle state sensing circuit, and the central control processor is connected with the data transmission interface of the vehicle-mounted LED display system; the vehicle state sensing circuit senses the real-time working state of the vehicle and feeds the real-time working state back to the central control processor, and the central control processor sends corresponding display screen control signals and/or display information to the vehicle-mounted LED display system according to the real-time working state.
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| CN202011364326.4A CN112309273A (en) | 2020-11-27 | 2020-11-27 | Vehicle-mounted LED display system and vehicle display control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114446226A (en) * | 2022-03-07 | 2022-05-06 | 广西维合丰光电科技有限公司 | LED display screen dynamic display remote monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114446226A (en) * | 2022-03-07 | 2022-05-06 | 广西维合丰光电科技有限公司 | LED display screen dynamic display remote monitoring system |
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