TFT motorcycle instrument with intelligent screen brightness awakening function

Abstract

The utility model relates to the technical field of motorcycle instruments, and particularly discloses an intelligent screen brightness awakening TFT motorcycle instrument which comprises an instrument body, a PCB and a TFT display screen electrically connected with the PCB are arranged on the instrument body, and the TFT display screen is electrically connected with the PCB. The PCB comprises an illumination detection circuit, a single-chip microcomputer main control circuit, a dimming output circuit, a display screen interface circuit and a power management circuit, and the illumination detection circuit, the dimming output circuit and the power management circuit are all electrically connected with the single-chip microcomputer main control circuit. The display screen interface circuit is electrically connected with the dimming output circuit and the TFT display screen. According to the utility model, the illumination detection circuit, the single chip microcomputer main control circuit and the dimming output circuit are arranged to cooperate with each other, so that the brightness of the TFT display screen can be automatically adjusted according to the brightness of the environment, a driver can clearly see information displayed on the TFT display screen in the driving process, and the safety is good.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle instrument technology, and in particular to a TFT motorcycle instrument with intelligent screen brightness wake-up. Background Technology

[0002] Motorcycle instrument panels are crucial devices for monitoring the operational status of various motorcycle systems. They can display fuel consumption, current speed, mileage, and more. Drivers can use the instrument panel to monitor the working status of each component at any time. With the continuous upgrading of motorcycle electronic configurations, the degree of electronic control in motorcycles is increasing, and multifunctional, high-precision, high-sensitivity, and intuitively readable electronic digital displays and image displays, such as LCD instruments, are increasingly being used in motorcycles.

[0003] A search revealed that Chinese utility model patent CN202320046023.0 discloses a liquid crystal display (LCD) motorcycle system, comprising: a microcontroller circuit including a microcontroller chip and a power supply terminal connected to the microcontroller chip; an LCD display circuit connected to the data interface of the microcontroller chip, the LCD display circuit including an LCD driver chip and an LCD screen connected to the data transmission interface of the LCD driver chip; and a gear data transmission circuit including a multi-parallel gear module, the gear module including a tenth diode and a tenth resistor connected in series with the anode of the tenth diode, with one end of an eleventh resistor connected between the tenth diode and the tenth resistor. This utility model discloses an LCD display motorcycle system that allows motorcycle instruments using this system to intuitively display information such as speed, gear, and fuel level on an LCD screen.

[0004] While the existing motorcycle instrument panels can meet basic usage needs, they lack automatic light sensing and their brightness is not adjustable, which can cause glare for the driver, making it difficult to see the instrument panel and even posing a safety risk. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a TFT motorcycle instrument panel with intelligent screen brightness wake-up, which addresses the above-mentioned defects of the prior art. By setting up a light detection circuit, a microcontroller main control circuit and a dimming output circuit to work together, the brightness of the TFT display screen is automatically adjusted according to the brightness of the environment, so that the driver can see the information displayed on the TFT display screen clearly while driving, thus improving safety.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A smart TFT motorcycle instrument panel with brightness-activated wake-up includes an instrument body, on which a PCB circuit board and a TFT display screen electrically connected to the PCB circuit board are disposed. The PCB circuit board includes a light detection circuit, a microcontroller main control circuit, a dimming output circuit, a display screen interface circuit, and a power management circuit. The light detection circuit, the dimming output circuit, and the power management circuit are all electrically connected to the microcontroller main control circuit. The display screen interface circuit is electrically connected to both the dimming output circuit and the TFT display screen.

[0008] Preferably, the instrument body has a circuit board mounting cavity on its inner side, and a display screen front frame is provided at the front end of the instrument body, with the TFT display screen installed in the display screen front frame.

[0009] Preferably, the microcontroller main control circuit includes a microcontroller chip U2, a crystal oscillator Y1, a control button S1, an inductor L1, and an inductor L2, wherein the crystal oscillator Y1, the control button S1, the inductor L1, and the inductor L2 are all connected to the microcontroller chip U2.

[0010] Preferably, the light detection circuit includes a light sensor IR1, an analog-to-digital converter chip U1, and a capacitor C1. The light sensor IR1 and the capacitor C1 are both connected to the analog-to-digital converter chip U1, and the analog-to-digital converter chip U1 is connected to the microcontroller chip U2.

[0011] Preferably, the dimming output circuit includes a dimming chip U3, resistors R4, R5, and R9, and transistor Q1. Resistors R4, R5, and R9, and transistor Q1 are all connected to the dimming chip U3, and the dimming chip U3 is connected to the microcontroller chip U2.

[0012] Preferably, the display interface circuit includes a display interface CH1, an inductor L2, a diode D4, a capacitor C9, and a capacitor C10. The inductor L2 and the diode D4 are both connected to the transistor Q1, and the inductor L2, the capacitor C9, and the capacitor C10 are all connected to the display interface CH1. The display interface CH1 is connected to the TFT display screen.

[0013] By adopting the above technical solution, the TFT motorcycle instrument panel with intelligent screen brightness wake-up provided by this utility model has the following beneficial effects: The instrument panel body of the TFT motorcycle instrument panel is provided with a PCB circuit board and a TFT display screen electrically connected to the PCB circuit board. The light detection circuit, dimming output circuit and power management circuit in the PCB circuit board are all electrically connected to the microcontroller main control circuit. The display screen interface circuit is electrically connected to the dimming output circuit and the TFT display screen respectively. By setting the light detection circuit, the microcontroller main control circuit and the dimming output circuit to work together, the brightness of the TFT display screen is automatically adjusted according to the brightness of the environment. This allows the driver to see the information displayed on the TFT display screen clearly while driving, thereby avoiding the driver being dazzled by the instrument panel lights or being unable to see the instrument panel clearly, or even causing dangerous situations, thus improving safety. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is a perspective view of the present utility model;

[0016] Figure 3 This is a perspective view of the present invention from another angle;

[0017] Figure 4 This is a circuit diagram of the PCB circuit board in this utility model;

[0018] In the diagram, 1-instrument body, 2-PCB circuit board, 3-TFT display screen, 4-circuit board mounting cavity, 5-display screen front frame. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] like Figure 1-3 As shown, the intelligent screen brightness-activated TFT motorcycle instrument panel includes an instrument body 1. A PCB circuit board 2 and a TFT display screen 3 electrically connected to the PCB circuit board 2 are mounted on the instrument body 1. The PCB circuit board 2 includes a light detection circuit, a microcontroller main control circuit, a dimming output circuit, a display screen interface circuit, and a power management circuit. The light detection circuit, dimming output circuit, and power management circuit are all electrically connected to the microcontroller main control circuit. The display screen interface circuit is electrically connected to both the dimming output circuit and the TFT display screen. It is understood that a circuit board mounting cavity 4 is formed on the inner side of the instrument body 1, and a display screen front frame 5 is provided at the front end of the instrument body 1, with the TFT display screen 3 mounted within the display screen front frame 5.

[0023] Specifically, the microcontroller main control circuit includes a microcontroller chip U2, a crystal oscillator Y1, a control button S1, an inductor L1, and an inductor L2. The crystal oscillator Y1, the control button S1, the inductor L1, and the inductor L2 are all connected to the microcontroller chip U2. The light detection circuit includes a light sensor IR1, an analog-to-digital converter chip U1, and a capacitor C1. The light sensor IR1 and the capacitor C1 are both connected to the analog-to-digital converter chip U1, and the analog-to-digital converter chip U1 is connected to the microcontroller chip U2. Understandably, the light sensor IR1 extends outside the instrument body 1. It uses a photoresistor or photoelectric sensor (such as BH1750) to sense changes in light intensity, sensor resistance / current, and convert them into voltage signals through a voltage divider circuit. It monitors the ambient light intensity in real time and then performs ADC conversion processing through the analog-to-digital converter chip U1 to output a digital signal to the microcontroller chip U2. The analog-to-digital converter chip U1 can be an ADC0832 chip, etc., and the microcontroller chip U2 can be an STM32 / 51 series chip, etc. It receives the light intensity data after ADC conversion, performs internal PID / threshold comparison, generates a PWM dimming control signal, and transmits it to the dimming output circuit.

[0024] Specifically, the dimming output circuit includes a dimming chip U3, resistors R4, R5, and R9, and transistor Q1. Resistors R4, R5, and R9, and transistor Q1 are all connected to the dimming chip U3, which is connected to the microcontroller chip U2. The display interface circuit includes a display interface CH1, inductor L2, diode D4, capacitor C9, and capacitor C10. Inductor L2 and diode D4 are both connected to transistor Q1, and inductor L2, capacitor C9, and capacitor C10 are all connected to the display interface CH1, which is connected to the TFT display screen. It is understood that the dimming chip U3 can be an LM3409 chip, etc., used to receive PWM dimming control signals and adjust the load current of the display interface circuit according to the PWM dimming control signals, thereby adjusting the brightness of the TFT display screen 4.

[0025] Understandably, the power management circuit includes a power management chip U4, resistors R39 and R40, and capacitors C38 and C39. Resistors R39, R40, C38, and C39 are all connected to the power management chip U4. The power management chip U4 is connected to the microcontroller chip U2. The power management chip U4 uses an LM117-S chip, which is used to connect to an external power supply and output the corresponding voltage to power the above circuit, thereby realizing multi-channel regulated output.

[0026] Understandably, this utility model is reasonably designed and uniquely constructed. By setting up a light detection circuit, a microcontroller main control circuit, and a dimming output circuit to work together, it can automatically adjust the brightness of the TFT display screen 3 according to the ambient light level. This allows the driver to clearly see the information displayed on the TFT display screen 3 while driving, thereby avoiding the driver being dazzled by the dashboard lights while driving a motorcycle, or being unable to see the dashboard clearly, or even causing dangerous situations, thus ensuring good safety.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A TFT motorcycle instrument with intelligent screen brightness wake-up, comprising an instrument body, a PCB circuit board and a TFT display screen electrically connected with the PCB circuit board are arranged on the instrument body, characterized in that: The PCB circuit board comprises an illumination detection circuit, a single-chip microcomputer master control circuit, a light adjustment output circuit, a display screen interface circuit and a power management circuit, the illumination detection circuit, the light adjustment output circuit and the power management circuit are electrically connected with the single-chip microcomputer master control circuit, and the display screen interface circuit is electrically connected with the light adjustment output circuit and a TFT display screen respectively.

2. The TFT motorcycle instrument with intelligent screen brightness wake-up according to claim 1, characterized in that: An inner side of the instrument body is provided with a circuit board mounting cavity, a front end of the instrument body is provided with a display screen front frame, and the TFT display screen is mounted in the display screen front frame.

3. The TFT motorcycle instrument with intelligent screen brightness wake-up as claimed in claim 1, wherein: The single-chip microcomputer master control circuit comprises a single-chip microcomputer chip U2, a crystal oscillator Y1, a control button S1, an inductor L1 and an inductor L2, the crystal oscillator Y1, the control button S1, the inductor L1 and the inductor L2 are connected with the single-chip microcomputer chip U2.

4. The TFT motorcycle instrument with intelligent screen brightness wake-up according to claim 3, characterized in that: The illumination detection circuit comprises an illumination sensor IR1, an analog-digital conversion chip U1 and a capacitor C1, the illumination sensor IR1 and the capacitor C1 are connected with the analog-digital conversion chip U1, and the analog-digital conversion chip U1 is connected with the single-chip microcomputer chip U2.

5. The TFT motorcycle instrument with intelligent screen brightness wake-up according to claim 3, characterized in that: The light adjustment output circuit comprises a light adjustment chip U3, a resistor R4, a resistor R5, a resistor R9 and a transistor Q1, the resistor R4, the resistor R5, the resistor R9 and the transistor Q1 are connected with the light adjustment chip U3, and the light adjustment chip U3 is connected with the single-chip microcomputer chip U2.

6. The TFT motorcycle instrument with intelligent screen brightness wake-up according to claim 5, characterized in that: The display screen interface circuit comprises a display screen interface CH1, an inductor L2, a diode D4, a capacitor C9 and a capacitor C10, the inductor L2 and the diode D4 are connected with the transistor Q1, the inductor L2, the capacitor C9 and the capacitor C10 are connected with the display screen interface CH1, and the display screen interface CH1 is connected with the TFT display screen.

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