CN217893117U

CN217893117U - Display circuit of motorcycle intelligent instrument

Info

Publication number: CN217893117U
Application number: CN202222326093.XU
Authority: CN
Inventors: 黄泽胜; 黄泽友; 谭玉华
Original assignee: Chongqing Sansan Electric Appliance Co ltd
Current assignee: Chongqing Sansan Electric Appliance Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-11-25
Anticipated expiration: 2032-09-01

Abstract

The utility model provides a display circuit of a motorcycle intelligent instrument, which comprises a power module, a controller module and a display module; the display end of the controller module is connected with the display end of the display module, the power supply output end of the power supply module is connected with the power supply end of the controller module and the power supply end of the display module, and corresponding working voltages are respectively provided for the controller module and the display module. The utility model discloses can instruct turn left, turn right, short-distance beam etc. and can numerical value display speed of a motor vehicle, battery voltage and residual capacity etc to provide safety protection's mains voltage.

Description

Display circuit of motorcycle intelligent instrument

Technical Field

The utility model relates to a motorcycle instrument technical field especially relates to a motorcycle intelligence instrument display circuit.

Background

With the continuous technical reform along with the rapid development of the motorcycle industry, the motorcycle is subjected to several changes, and the changes are huge in both form and function. It is no longer just a simple element providing speed, and it can show more important car information. The popularization of integration and digital control technology enriches the functions of the automobile instrument and makes the visual effect more pleasant. At present, from the market keeping quantity, most of the instruments adopt mechanical instruments, such as a pointer for vehicle speed and rotating speed information.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem who exists among the prior art at least, creatively provided a motorcycle intelligent instrument display circuit very much.

In order to achieve the above object of the present invention, the present invention provides a display circuit for a motorcycle intelligent instrument, which comprises a power module, a controller module and a display module;

the display end of the controller module is connected with the display end of the display module, the power supply output end of the power supply module is connected with the power supply end of the controller module and the power supply end of the display module, and corresponding working voltages are respectively provided for the controller module and the display module.

In a preferred embodiment of the present invention, the power module includes: the voltage input end IGN is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the first end of the inductor L1, the second end of the inductor L1 is connected with the first end of the capacitor EC5, the first end of the capacitor EC4, the first end of the capacitor EC1, the first end of the capacitor C1 and the voltage input end Vin of the power chip LDO1, the second end of the capacitor EC5 is connected with the second end of the capacitor EC4, the second end of the capacitor EC1, the second end of the capacitor C1, the first end of the capacitor C6, the first end of the capacitor C3, the first end of the capacitor EC6, the power ground end GND and the power ground of the power chip LDO1, the reset delay end D of the power chip LDO1 is connected with the second end of the capacitor C6, the voltage output end Vout of the power chip LDO1 is connected with the second end of the capacitor C3, the second end of the capacitor EC6 and the first end of the inductor L3, the second end of the inductor L3 is connected with the second end of the inductor L3, and the output voltage V5 + of the power chip LDO 3;

or the power supply module comprises: the voltage input end IGN is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the collector of the triode Q1, the collector of the triode Q2 and the first end of the resistor R1, the second end of the resistor R1 is connected with the first end of the capacitor C5, the cathode of the diode D2 and the base of the triode Q2, the second end of the capacitor C5 is connected with the anode of the diode D2 and the power ground, the emitter of the triode Q2 is connected with the base of the triode Q1, the emitter of the triode Q1 is connected with the first end of the capacitor EC5, the first end of the capacitor EC4, the first end of the capacitor EC1, the first end of the capacitor C3, the first end of the capacitor EC6, the first end of the capacitor C18, the power ground end of the power chip LDO1 and the power ground, the power ground end of the power chip C1 is connected with the power ground, the power chip C1 is connected with the second end of the power ground, the power chip L3, the second end of the capacitor C3 is connected with the power chip V3, the second end of the capacitor C3 and the second end of the capacitor C3, the power chip is connected with the second end of the power chip Vout, and the second end of the capacitor C3, and the capacitor C3, the second end of the capacitor C3, and the capacitor C3.

In a preferred embodiment of the present invention, the display module includes an indicator light module or/and a numerical display module;

when the display module is an indicator light module, the indicating end of the controller module is connected with the indicating end of the indicator light module;

and when the display module is a numerical value display module, the numerical value display end of the controller module is connected with the display end of the numerical value display module.

In a preferred embodiment of the present invention, the indicator light module includes one or any combination of a left turn indicator module, a right turn indicator module, a low beam indicator module, a ready indicator module, and an emergency indicator module;

the left turn indicating module comprises: the anode of the diode D4 is connected with the left turn indication control end PB03 of the controller U2, the cathode of the diode D4 is connected with the first end of the resistor R12, the second end of the resistor R12 is connected with the first end of the resistor R14, the anode of the light emitting diode LED1 and the anode of the light emitting diode LED3, the second end of the resistor R14 is connected with the power ground, and the cathode of the light emitting diode LED1 and the cathode of the light emitting diode LED3 are connected with the power ground;

the right turn indicating module includes: the anode of the diode D3 is connected with the right turn indication control end PB04 of the controller U2, the cathode of the diode D3 is connected with the first end of the resistor R13, the second end of the resistor R13 is connected with the first end of the resistor R15, the anode of the light emitting diode LED2 and the anode of the light emitting diode LED4, the second end of the resistor R15 is connected with a power ground, and the cathode of the light emitting diode LED2 and the cathode of the light emitting diode LED4 are connected with the power ground;

the low beam indication module comprises: the anode of the diode D5 is connected to the low-beam indication control terminal PB05 of the controller U2, the cathode of the diode D5 is connected to the first terminal of the resistor R20, the second terminal of the resistor R20 is connected to the anode of the LED8 of the light emitting diode, and the cathode of the LED8 of the light emitting diode is connected to the power ground;

the emergency indication module comprises: a first end of the resistor R132 is connected with the +5V power supply voltage, a second end of the resistor R132 is connected with the anode of the light-emitting diode LED96, and the cathode of the light-emitting diode LED96 is connected with an emergency indication control end PA11 of the controller U2;

the ready indication module comprises: the first end of the resistor R138 is connected with the +5V power supply voltage, the second end of the resistor R138 is connected with the anode of the light emitting diode LED89, and the cathode of the light emitting diode LED89 is connected with the preparation completion indication control end PA10 of the controller U2.

In a preferred embodiment of the present invention, the wireless communication device further includes a line communication module, the line communication module includes: the first end of the resistor R10 and the first end of the resistor R16 are connected with a communication end, the second end of the resistor R10 is connected with the first end of the resistor R11 and a power supply voltage +5V, the second end of the resistor R11 is connected with the base of the triode Q4 and the collector of the triode Q5, the base of the triode Q5 is connected with the first end of the resistor R17, the second end of the resistor R16 and the first end of the capacitor C12, the second end of the capacitor C12 is connected with the second end of the resistor R17, the emitter of the triode Q5, the emitter of the triode Q4 and a power ground, the collector of the triode Q4 is connected with the first end of the resistor R9 and the communication end PA15 of the controller U2, and the second end of the resistor R9 is connected with the power supply voltage +5V.

In a preferred embodiment of the present invention, the value display module includes one or any combination of a vehicle speed value display module, a voltage value display module, and a power value display module;

the vehicle speed value display module comprises: a bit output end GRID1 of the LED driving controller U3 is connected with a cathode of the light emitting diode LED11, a cathode of the light emitting diode LED12, a cathode of the light emitting diode LED13, a cathode of the light emitting diode LED14, a cathode of the light emitting diode LED15, a cathode of the light emitting diode LED16 and a cathode of the light emitting diode LED 17; the positive electrode of the light emitting diode LED11 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED12 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED13 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED14 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED15 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED16 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED17 is connected with the segment output end SEG7 of the LED drive controller U3;

a bit output end GRID2 of the LED driving controller U3 is connected with a cathode of the light emitting diode LED18, a cathode of the light emitting diode LED19, a cathode of the light emitting diode LED20, a cathode of the light emitting diode LED21, a cathode of the light emitting diode LED22, a cathode of the light emitting diode LED23 and a cathode of the light emitting diode LED 24; the positive electrode of the light emitting diode LED18 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED19 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED20 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED21 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED22 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED23 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED24 is connected with the segment output end SEG7 of the LED drive controller U3;

a bit output end GRID3 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED25, a cathode of the light emitting diode LED26, a cathode of the light emitting diode LED27, a cathode of the light emitting diode LED28, a cathode of the light emitting diode LED29, a cathode of the light emitting diode LED30, and a cathode of the light emitting diode LED 31; the positive electrode of the light emitting diode LED25 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED26 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED27 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED28 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED29 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED30 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED31 is connected with the segment output end SEG7 of the LED drive controller U3;

the voltage value display module includes: a bit output end GRID4 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED32, a cathode of the light emitting diode LED33, a cathode of the light emitting diode LED34, a cathode of the light emitting diode LED35, a cathode of the light emitting diode LED36, a cathode of the light emitting diode LED37, and a cathode of the light emitting diode LED 38; the positive electrode of the light-emitting diode LED32 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light-emitting diode LED33 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light-emitting diode LED34 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light-emitting diode LED35 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light-emitting diode LED36 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light-emitting diode LED37 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light-emitting diode LED38 is connected with the segment output end SEG7 of the LED drive controller U3;

a bit output end GRID5 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED39, a cathode of the light emitting diode LED40, a cathode of the light emitting diode LED41, a cathode of the light emitting diode LED42, a cathode of the light emitting diode LED43, a cathode of the light emitting diode LED44, a cathode of the light emitting diode LED45, and a cathode of the light emitting diode LED 7; the positive electrode of the light-emitting diode LED39 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light-emitting diode LED40 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light-emitting diode LED41 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light-emitting diode LED42 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light-emitting diode LED43 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light-emitting diode LED44 is connected with the segment output end SEG6 of the LED drive controller U3, the positive electrode of the light-emitting diode LED45 is connected with the segment output end SEG7 of the LED drive controller U3, and the positive electrode of the light-emitting diode LED7 is connected with the segment output end SEG8 of the LED drive controller U3;

a bit output end GRID6 of the LED drive controller U3 is connected with a cathode of the LED46, a cathode of the LED48, a cathode of the LED50, a cathode of the LED52, a cathode of the LED54, a cathode of the LED56 and a cathode of the LED 58; the positive electrode of the light-emitting diode LED46 is connected with a segment output end SEG1 of the LED drive controller U3, the positive electrode of the light-emitting diode LED48 is connected with a segment output end SEG2 of the LED drive controller U3, the positive electrode of the light-emitting diode LED50 is connected with a segment output end SEG3 of the LED drive controller U3, the positive electrode of the light-emitting diode LED52 is connected with a segment output end SEG4 of the LED drive controller U3, the positive electrode of the light-emitting diode LED54 is connected with a segment output end SEG5 of the LED drive controller U3, the positive electrode of the light-emitting diode LED56 is connected with a segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light-emitting diode LED58 is connected with a segment output end SEG7 of the LED drive controller U3;

the electric quantity value display module comprises: a bit output end GRID7 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED47, a cathode of the light emitting diode LED49, a cathode of the light emitting diode LED51, a cathode of the light emitting diode LED53, a cathode of the light emitting diode LED55, a cathode of the light emitting diode LED57, and a cathode of the light emitting diode LED 59; the positive electrode of the light emitting diode LED47 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED49 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED51 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED53 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED55 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED57 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED59 is connected with the segment output end SEG7 of the LED drive controller U3;

a bit output end GRID8 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED60, a cathode of the light emitting diode LED62, a cathode of the light emitting diode LED64, a cathode of the light emitting diode LED66, a cathode of the light emitting diode LED68, a cathode of the light emitting diode LED70, and a cathode of the light emitting diode LED 72; the anode of the light emitting diode LED60 is connected with the segment output end SEG1 of the LED drive controller U3, the anode of the light emitting diode LED62 is connected with the segment output end SEG2 of the LED drive controller U3, the anode of the light emitting diode LED64 is connected with the segment output end SEG3 of the LED drive controller U3, the anode of the light emitting diode LED66 is connected with the segment output end SEG4 of the LED drive controller U3, the anode of the light emitting diode LED68 is connected with the segment output end SEG5 of the LED drive controller U3, the anode of the light emitting diode LED70 is connected with the segment output end SEG6 of the LED drive controller U3, and the anode of the light emitting diode LED72 is connected with the segment output end SEG7 of the LED drive controller U3.

In a preferred embodiment of the present invention, the present invention further includes: the power ground terminal VSS1 of the LED driving controller U3 is connected to the power ground terminal VSS2 of the LED driving controller U3, the power ground terminal VSS3 of the LED driving controller U3 and the power ground, the data terminal DIO of the LED driving controller U3 is connected to the first terminal of the resistor R139 and the first terminal of the capacitor C13, the second terminal of the resistor R139 is connected to the first terminal of the resistor R140, the first terminal of the resistor R194 and the power voltage +5V, the second terminal of the resistor R140 is connected to the first terminal of the capacitor C14 and the clock terminal CLK of the LED driving controller U3, the second terminal of the resistor R194 is connected to the first terminal of the capacitor C16 and the chip select terminal STB of the LED driving controller U3, the second terminal of the capacitor C13 is connected to the second terminal of the capacitor C14, the second terminal of the capacitor C16 and the power ground, the power supply terminal VDD1 of the LED driving controller U3 is connected to the power voltage +5V, the power supply terminal VDD2 of the LED driving controller U3 is connected to the first terminal of the capacitor C15 and the second terminal of the capacitor EC 2.

In a preferred embodiment of the present invention, the controller module includes: a capacitor terminal VCAP of the controller U2 is connected to a first terminal of the capacitor C7 and a first terminal of the capacitor C8, a second terminal of the capacitor C8 is connected to a second terminal of the capacitor C7 and a power ground, a reset terminal RESETB of the controller U2 is connected to a first terminal of the capacitor C9, a first terminal of the resistor R8 and a reset interface RSTB, a second terminal of the resistor R8 is connected to a +5V power supply, a second terminal of the capacitor C9 is connected to a first terminal of the capacitor C10 and a power ground, a second terminal of the capacitor C10 is connected to a +5V power supply and a +5V power supply of the controller U2, a chip select terminal PA04 of the controller U2 is connected to a chip select terminal STB of the LED driver controller U3, a power ground terminal DVSS of the controller U2 is connected to a power ground, a power supply terminal DVCC of the controller U2 is connected to a first terminal of the capacitor C11 and a +5V power supply, a second terminal of the capacitor C11 is connected to a power ground, a data terminal PA09 of the controller U2 is connected to a first terminal of the resistor R141 of the controller U2, a clock terminal CLK of the controller U2 is connected to a clock terminal of the controller U3, a second terminal of the controller U3 is connected to a second terminal of the resistor U141 of the controller U3; the data end PA13/SWDIO of the controller U2 is connected with the interface 5 of the connector J1, the clock end PA14/SWCLK of the controller U2 is connected with the interface 4 of the connector J1, the start end BOOT0 of the controller U2 is connected with the first end of the resistor R7 and the interface 3 of the connector J1, the second end of the resistor R7 is connected with the power ground, the interface 2 of the connector J1 is connected with the power ground, and the interface 1 of the connector J1 is connected with +5V of power voltage.

In conclusion, owing to adopted above-mentioned technical scheme, the utility model discloses can instruct left turn, right turn, short-distance beam etc. and can numerical value display speed of a motor vehicle, battery voltage and residual capacity etc to provide safety protection's mains voltage.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a connection schematic block diagram of the present invention.

Fig. 2 is a schematic diagram of the circuit connection of the power module of the present invention.

Fig. 3 is a schematic diagram of the power module circuit connection of the present invention.

Fig. 4 is a schematic diagram of the circuit connection of the left turn indication module of the present invention.

Fig. 5 is a schematic diagram of the circuit connection of the right turn indicating module of the present invention.

Fig. 6 is a schematic circuit connection diagram of the low beam indicating module of the present invention.

Fig. 7 is a schematic diagram of the circuit connection between the ready-to-finish indicating module and the emergency indicating module of the present invention.

Fig. 8 is a circuit connection diagram of a line communication module according to the present invention.

Fig. 9 is a schematic diagram of the vehicle speed value display module circuit connection of the present invention.

Fig. 10 is a schematic diagram of the circuit connection of the voltage value display module according to the present invention.

Fig. 11 is a schematic diagram of the circuit connection of the electric quantity value display module of the present invention.

Fig. 12 is a schematic diagram of the circuit connection of the LED driving controller module according to the present invention.

Fig. 13 is a schematic diagram of the controller module circuit connection of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The utility model provides a display circuit of a motorcycle intelligent instrument, as shown in figure 1, comprising a power module, a controller module and a display module;

In a preferred embodiment of the present invention, the power module includes: as shown in fig. 2, the voltage input end IGN is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the first end of the inductor L1, the second end of the inductor L1 is connected to the first end of the capacitor EC5, the first end of the capacitor EC4, the first end of the capacitor EC1, the first end of the capacitor C1 and the voltage input end Vin of the power chip LDO1, the second end of the capacitor EC5 is connected to the second end of the capacitor EC4, the second end of the capacitor EC1, the second end of the capacitor C1, the first end of the capacitor C6, the first end of the capacitor C3, the first end of the capacitor EC6, the first end of the capacitor C18, the power ground GND of the power chip LDO1 and the power ground, the power ground GND1 of the power chip LDO1 is connected to the power ground, the reset delay end D of the power chip LDO1 is connected to the second end of the capacitor C6, the voltage output end of the power chip LDO1 is connected to the second end of the capacitor C3, the second end of the capacitor EC6 and the first end of the inductor L3, the second end of the inductor L3 is connected to the second end of the capacitor C3, and the voltage output end V5 of the inductor L3; the ignition voltage input by the voltage input end IGN is converted into a stable +5V power voltage through the power chip LDO1 and is output. The model of the power supply chip LDO1 is TLE4275, the model of the diode D1 is 1N4007, the inductor L1 and the inductor L3 are 600 omega inductors, the resistance values of the capacitor C3, the capacitor C18 and the capacitor C1 are 0.1uF, the capacitance value of the capacitor EC6 is 100uF, the capacitance values of the capacitor EC5, the capacitor EC4 and the capacitor EC1 are 47uF, and the capacitance value of the capacitor C6 is 0.01uF.

Or the power supply module comprises: as shown in fig. 3, the voltage input terminal IGN is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the collector of the transistor Q1, the collector of the transistor Q2 and the first terminal of the resistor R1, the second terminal of the resistor R1 is connected to the first terminal of the capacitor C5, the cathode of the diode D2 and the base of the transistor Q2, the second terminal of the capacitor C5 is connected to the anode of the diode D2 and the power ground, the emitter of the transistor Q2 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the first terminal of the capacitor EC5, the first terminal of the capacitor EC4, the first terminal of the capacitor EC1, the first terminal of the capacitor C3, the first terminal of the capacitor EC6, the first terminal of the capacitor C18, the first terminal of the power chip EC 18, the power ground and the power ground, the power ground of the power chip EC1 is connected to the power ground, the power chip 1 is connected to the power supply terminal of the capacitor EC6, the power supply chip EC1 is connected to the second terminal of the capacitor C3, the power supply terminal of the capacitor EC5 is connected to the power supply terminal of the capacitor C1, the power supply terminal of the capacitor C3, the second terminal of the capacitor C3 is connected to the power supply terminal of the capacitor C3, and the power supply terminal of the capacitor C3, the capacitor C3 is connected to the second terminal of the capacitor C3, and the capacitor C3, the power supply terminal of the power supply chip is connected to the second terminal of the capacitor C3, and the capacitor C3, the output terminal of the capacitor C3 is connected to the capacitor C3, and the second terminal of the capacitor C3, and the capacitor C3 is connected to the capacitor C3, the power supply terminal of the second terminal of the capacitor C3, and the capacitor C3, the capacitor C1, the output terminal of the capacitor C3 is connected to the capacitor C3. When the ignition voltage input by the voltage input end IGN is higher than the stabilized voltage of a diode D2 (a voltage stabilizing diode), the diode D2 is conducted, the base voltage of the triode Q2 is pulled low at the moment, the triode Q2 is in a cut-off state, when the triode Q2 is in the cut-off state, the base of the triode Q1 is a cut-off level, the triode Q1 is also in the cut-off state, the emitting electrode of the triode Q1 has no power supply voltage output, the disconnection of a circuit is realized, and the effect of safety protection is achieved; when the ignition voltage input by the voltage input end IGN is lower than the regulated voltage of the diode D2, the diode D2 is not conducted, the triode Q2 is in a conducting state at the moment, when the triode Q2 is in the conducting state, the base of the triode Q1 is a conducting level, the triode Q1 is also in the conducting state, the emitting electrode of the triode Q1 is provided with power voltage output, the circuit is closed, and the voltage output by the emitting electrode of the triode Q1 is converted into stable +5V power voltage output through the power chip LDO 1. The model of the power supply chip LDO1 is TLE4275, the model of the diode D1 is 1N4007, the inductor L3 is a 600 omega inductor, the resistance values of the capacitor C3, the capacitor C18 and the capacitor C1 are 0.1uF, the capacitance value of the capacitor EC6 is 100uF, the capacitance values of the capacitor EC5, the capacitor EC4 and the capacitor EC1 are 47uF, and the capacitance value of the capacitor C6 is 0.01uF; the model of the triode Q1 is 2SC2983, the model of the triode Q2 is MMBT5551, the resistance value of the resistor R1 is 4.7K, the resistance value of the capacitor C5 is 0.1uF, and the model of the diode D2 is SMAJ4747AHE3.

Preferably, the battery module further includes an electricity storage module, and the battery module includes: the storage battery power supply terminal BAT is connected with a first end of the capacitor C141 and the anode of the diode D2, a second end of the capacitor C141 is connected with the power ground, and the cathode of the diode D1 is connected with a first end of the inductor L1 or the collector of the triode Q1. The capacitance value of the capacitor C141 is 0.01uF, and the model number of the diode D2 is SK34. When not ignited, the power supply output by the storage battery power supply terminal BAT supplies power, and the ignition power supply input by the voltage input terminal IGN supplies power after ignition.

the left turn indicating module comprises: as shown in fig. 4 and 13, the anode of the diode D4 is connected to the left turn indication control terminal PB03 of the controller U2, the cathode of the diode D4 is connected to the first terminal of the resistor R12, the second terminal of the resistor R12 is connected to the first terminal of the resistor R14, the anode of the light emitting diode LED1 and the anode of the light emitting diode LED3, the second terminal of the resistor R14 is connected to the power ground, and the cathode of the light emitting diode LED1 and the cathode of the light emitting diode LED3 are connected to the power ground; when the controller U2 detects that the left turn lamp is turned on, the controller U2 sends a lighting level to the light emitting diodes LED1 and LED3, and the light emitting diodes LED1 and LED3 are turned on to indicate that the left turn lamp is turned on. The type of the light emitting diode LED1 and the type of the light emitting diode LED3 are 0603-GREEN, the type of the diode D4 is 1N4007, the resistance value of the resistor R12 is 1K, and the resistance value of the resistor R14 is 510 omega.

The right turn indicating module includes: as shown in fig. 5 and 13, the anode of the diode D3 is connected to the right turn indication control terminal PB04 of the controller U2, the cathode of the diode D3 is connected to the first terminal of the resistor R13, the second terminal of the resistor R13 is connected to the first terminal of the resistor R15, the anode of the light emitting diode LED2 and the anode of the light emitting diode LED4, the second terminal of the resistor R15 is connected to the power ground, and the cathode of the light emitting diode LED2 and the cathode of the light emitting diode LED4 are connected to the power ground; when the controller U2 detects that the right turn lamp is turned on, the controller U2 sends an illumination level to the light emitting diodes LED2 and LED4, and the light emitting diodes LED2 and LED4 are turned on to indicate that the right turn lamp is turned on. The type of the light emitting diode LED2 and the type of the light emitting diode LED4 are 0603-GREEN, the type of the diode D3 is 1N4007, the resistance value of the resistor R13 is 1K, and the resistance value of the resistor R15 is 510 omega.

The low beam indication module includes: as shown in fig. 6 and 13, the anode of the diode D5 is connected to the low beam indication control terminal PB05 of the controller U2, the cathode of the diode D5 is connected to the first terminal of the resistor R20, the second terminal of the resistor R20 is connected to the anode of the LED8 of the light emitting diode, and the cathode of the LED8 of the light emitting diode is connected to the power ground; when the controller U2 detects that the right turn lamp is turned on, the controller U2 sends an illumination level to the light emitting diode LED8, and the light emitting diode LED8 is illuminated, indicating that the low beam lamp is illuminated. The type of the light emitting diode LED8 is 0603-G, the resistance value of the resistor R20 is 1K, and the type of the diode D5 is 1N4007.

The emergency indication module comprises: a first end of the resistor R132 is connected with the +5V power supply voltage, a second end of the resistor R132 is connected with the anode of the light-emitting diode LED96, and the cathode of the light-emitting diode LED96 is connected with an emergency indication control end PA11 of the controller U2; when the controller U2 detects that the emergency button is pressed, the controller U2 sends a lighting level to the light emitting diode LED96, and the light emitting diode LED96 lights up, indicating that the emergency indicator lamp lights up. The type of the light emitting diode LED96 is 0603-G, and the resistance value of the resistor R132 is 220 omega.

The ready indication module comprises: as shown in fig. 7 and 13, a first terminal of the resistor R138 is connected to the power supply voltage +5V, a second terminal of the resistor R138 is connected to the anode of the light emitting diode LED89, and the cathode of the light emitting diode LED89 is connected to the ready indication control terminal PA10 of the controller U2. When the controller U2 detects that the system is ready, the controller U2 sends a lighting level to the light emitting diode LED89, and the light emitting diode LED89 lights up, indicating that the system is ready to light up. The type of the light emitting diode LED89 is 0603-Y, and the resistance value of the resistor R138 is 220 omega.

In a preferred embodiment of the present invention, the system further comprises a line communication module, the line communication module includes: as shown in fig. 8 and 13, the first end of the resistor R10 and the first end of the resistor R16 are connected to the communication terminal, the second end of the resistor R10 is connected to the first end of the resistor R11 and the supply voltage +5V, the second end of the resistor R11 is connected to the base of the transistor Q4 and the collector of the transistor Q5, the base of the transistor Q5 is connected to the first end of the resistor R17, the second end of the resistor R16 and the first end of the capacitor C12, the second end of the capacitor C12 is connected to the second end of the resistor R17, the emitter of the transistor Q5, the emitter of the transistor Q4 and the power ground, the collector of the transistor Q4 is connected to the first end of the resistor R9 and the communication terminal PA15 of the controller U2, and the second end of the resistor R9 is connected to the supply voltage +5V. The model of the triode Q4 and the model of the triode Q5 are MMBT5551, the resistance values of the resistor R17 and the resistor R9 are 4.7K, the resistance values of the resistor R16, the resistor R10 and the resistor R11 are 10K, and the resistance value of the capacitor C12 is 0.01uF.

In a preferred embodiment of the present invention, the value display module includes one or any combination of a vehicle speed value display module, a voltage value display module, and an electric quantity value display module;

the vehicle speed value display module comprises: as shown in fig. 9 and 12, the bit output terminal GRID1 of the LED drive controller U3 is connected to the cathode of the light emitting diode LED11, the cathode of the light emitting diode LED12, the cathode of the light emitting diode LED13, the cathode of the light emitting diode LED14, the cathode of the light emitting diode LED15, the cathode of the light emitting diode LED16, and the cathode of the light emitting diode LED 17; the positive electrode of the light emitting diode LED11 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED12 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED13 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED14 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED15 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED16 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED17 is connected with the segment output end SEG7 of the LED drive controller U3; the light emitting diode LED11, the light emitting diode LED12, the light emitting diode LED13, the light emitting diode LED14, the light emitting diode LED15, the light emitting diode LED16, and the light emitting diode LED17 constitute a lighting lamp of a seven-segment digital tube.

A bit output end GRID2 of the LED driving controller U3 is connected with a cathode of the light emitting diode LED18, a cathode of the light emitting diode LED19, a cathode of the light emitting diode LED20, a cathode of the light emitting diode LED21, a cathode of the light emitting diode LED22, a cathode of the light emitting diode LED23 and a cathode of the light emitting diode LED 24; the positive electrode of the light emitting diode LED18 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED19 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED20 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED21 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED22 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED23 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED24 is connected with the segment output end SEG7 of the LED drive controller U3; the light emitting diodes LED18, LED19, LED20, LED21, LED22, LED23, and LED24 constitute a lighting lamp of a seven-segment digital tube.

A bit output end GRID3 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED25, a cathode of the light emitting diode LED26, a cathode of the light emitting diode LED27, a cathode of the light emitting diode LED28, a cathode of the light emitting diode LED29, a cathode of the light emitting diode LED30, and a cathode of the light emitting diode LED 31; the positive electrode of the light-emitting diode LED25 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light-emitting diode LED26 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light-emitting diode LED27 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light-emitting diode LED28 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light-emitting diode LED29 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light-emitting diode LED30 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light-emitting diode LED31 is connected with the segment output end SEG7 of the LED drive controller U3; the light emitting diodes LED25, LED26, LED27, LED28, LED29, LED30, and LED31 constitute a lighting lamp of a seven-segment digital tube. The controller U2 displays the real-time vehicle speed it detects on the display module.

The voltage value display module comprises: as shown in fig. 10 and 12, the bit output terminal GRID4 of the LED drive controller U3 is connected to the cathode of the light emitting diode LED32, the cathode of the light emitting diode LED33, the cathode of the light emitting diode LED34, the cathode of the light emitting diode LED35, the cathode of the light emitting diode LED36, the cathode of the light emitting diode LED37, and the cathode of the light emitting diode LED 38; the positive electrode of the light emitting diode LED32 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED33 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED34 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED35 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED36 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED37 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED38 is connected with the segment output end SEG7 of the LED drive controller U3; the light emitting diodes LED32, LED33, LED34, LED35, LED36, LED37, and LED38 constitute a lighting lamp of a seven-segment digital tube.

A bit output end GRID5 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED39, a cathode of the light emitting diode LED40, a cathode of the light emitting diode LED41, a cathode of the light emitting diode LED42, a cathode of the light emitting diode LED43, a cathode of the light emitting diode LED44, a cathode of the light emitting diode LED45, and a cathode of the light emitting diode LED 7; the positive electrode of the light-emitting diode LED39 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light-emitting diode LED40 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light-emitting diode LED41 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light-emitting diode LED42 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light-emitting diode LED43 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light-emitting diode LED44 is connected with the segment output end SEG6 of the LED drive controller U3, the positive electrode of the light-emitting diode LED45 is connected with the segment output end SEG7 of the LED drive controller U3, and the positive electrode of the light-emitting diode LED7 is connected with the segment output end SEG8 of the LED drive controller U3; the light emitting diodes LED39, LED40, LED41, LED42, LED43, LED44, LED45, and LED7 constitute seven-segment digital tubes and spot lighting lamps.

A bit output end GRID6 of the LED drive controller U3 is connected with a cathode of the LED46, a cathode of the LED48, a cathode of the LED50, a cathode of the LED52, a cathode of the LED54, a cathode of the LED56 and a cathode of the LED 58; the positive electrode of the light emitting diode LED46 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED48 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED50 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED52 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED54 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED56 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED58 is connected with the segment output end SEG7 of the LED drive controller U3; the light emitting diode LED46, the light emitting diode LED48, the light emitting diode LED50, the light emitting diode LED52, the light emitting diode LED54, the light emitting diode LED56, and the light emitting diode LED58 constitute a lighting lamp of a seven-segment digital tube. The controller U2 displays the real-time battery voltage values it detects on the display module.

The electric quantity value display module comprises: as shown in fig. 11 and 12, the bit output terminal GRID7 of the LED drive controller U3 is connected to the cathode of the light emitting diode LED47, the cathode of the light emitting diode LED49, the cathode of the light emitting diode LED51, the cathode of the light emitting diode LED53, the cathode of the light emitting diode LED55, the cathode of the light emitting diode LED57, and the cathode of the light emitting diode LED 59; the positive electrode of the light emitting diode LED47 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED49 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED51 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED53 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED55 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED57 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED59 is connected with the segment output end SEG7 of the LED drive controller U3; the light emitting diode LED47, the light emitting diode LED49, the light emitting diode LED51, the light emitting diode LED53, the light emitting diode LED55, the light emitting diode LED57, and the light emitting diode LED59 constitute a lighting lamp of a seven-segment digital tube.

A bit output end GRID8 of the LED driving controller U3 is connected to a cathode of the light emitting diode LED60, a cathode of the light emitting diode LED62, a cathode of the light emitting diode LED64, a cathode of the light emitting diode LED66, a cathode of the light emitting diode LED68, a cathode of the light emitting diode LED70, and a cathode of the light emitting diode LED 72; the anode of the light emitting diode LED60 is connected with the segment output end SEG1 of the LED drive controller U3, the anode of the light emitting diode LED62 is connected with the segment output end SEG2 of the LED drive controller U3, the anode of the light emitting diode LED64 is connected with the segment output end SEG3 of the LED drive controller U3, the anode of the light emitting diode LED66 is connected with the segment output end SEG4 of the LED drive controller U3, the anode of the light emitting diode LED68 is connected with the segment output end SEG5 of the LED drive controller U3, the anode of the light emitting diode LED70 is connected with the segment output end SEG6 of the LED drive controller U3, and the anode of the light emitting diode LED72 is connected with the segment output end SEG7 of the LED drive controller U3. The light emitting diodes LED60, LED62, LED64, LED66, LED68, LED70, and LED72 constitute a lighting lamp of a seven-segment digital tube. The controller U2 displays the remaining power it detects on the display module.

In a preferred embodiment of the present invention, the LED driving controller module is further included, and the LED driving controller module includes: as shown in fig. 12, the power ground terminal VSS1 of the LED driving controller U3 is connected to the power ground terminal VSS2 of the LED driving controller U3, the power ground terminal VSS3 of the LED driving controller U3 and the power ground, the data terminal DIO of the LED driving controller U3 is connected to the first terminal of the resistor R139 and the first terminal of the capacitor C13, the second terminal of the resistor R139 is connected to the first terminal of the resistor R140, the first terminal of the resistor R194 and the power voltage +5V, the second terminal of the resistor R140 is connected to the first terminal of the capacitor C14 and the clock terminal CLK of the LED driving controller U3, the second terminal of the resistor R194 is connected to the first terminal of the capacitor C16 and the chip select terminal STB of the LED driving controller U3, the second terminal of the capacitor C13 is connected to the second terminal of the capacitor C14, the second terminal of the capacitor C16 and the power ground, the power supply terminal VDD1 of the LED driving controller U3 is connected to the power voltage +5V, the first terminal of the capacitor C15 and the second terminal of the capacitor EC2 are connected to the power ground terminal VDD of the capacitor C15 and the power terminal VDD. The model of the LED driving controller U3 is TM1629A, the capacitance values of the capacitor C13, the capacitor C14, and the capacitor C16 are 100pF, the capacitance value of the capacitor C15 is 0.1uF, the capacitance value of the capacitor EC2 is 100uF, and the resistances of the resistor R139, the resistor R140, and the resistor R194 are 10K.

In a preferred embodiment of the present invention, the controller module includes: as shown in fig. 12 and 13, the capacitor terminal VCAP of the controller U2 is connected to the first terminal of the capacitor C7 and the first terminal of the capacitor C8, the second terminal of the capacitor C8 is connected to the second terminal of the capacitor C7 and the power ground, the reset terminal RESETB of the controller U2 is connected to the first terminal of the capacitor C9, the first terminal of the resistor R8 and the reset interface RSTB, the reset interface RSTB is connected to the reset button, and the other terminal of the reset button is connected to the power ground; the second end of the resistor R8 is connected with a power supply voltage +5V, the second end of the capacitor C9 is connected with the first end of the capacitor C10 and a power supply ground, the second end of the capacitor C10 is connected with a power supply end AVCC of the controller U2 and the power supply voltage +5V, a chip selection end PA04 of the controller U2 is connected with a chip selection end STB of the LED driving controller U3, a power supply ground end DVSS of the controller U2 is connected with the power supply ground, the power supply end DVCC of the controller U2 is connected with the first end of the capacitor C11 and the power supply voltage +5V, the second end of the capacitor C11 is connected with the power supply ground, a data end PA09 of the controller U2 is connected with the first end of the resistor R142, a clock end PA08 of the controller U2 is connected with the first end of the resistor R141, the second end of the resistor R142 is connected with a data end DIO of the LED driving controller U3, and the second end of the resistor R141 is connected with a clock end CLK of the LED driving controller U3; the data end PA13/SWDIO of the controller U2 is connected with the interface 5 of the connector J1, the clock end PA14/SWCLK of the controller U2 is connected with the interface 4 of the connector J1, the start end BOOT0 of the controller U2 is connected with the first end of the resistor R7 and the interface 3 of the connector J1, the second end of the resistor R7 is connected with the power ground, the interface 2 of the connector J1 is connected with the power ground, and the interface 1 of the connector J1 is connected with +5V of power voltage. The model of the controller U2 is HC32L130F8UA, the resistances of the resistor R7 and the resistor R8 are 10K, the resistances of the resistor R142 and the resistor R141 are 0 Ω, the capacitance of the capacitor C11, the capacitor C10, the capacitor C9 and the capacitor C8 is 0.1uF, and the capacitance of the capacitor C7 is 4.7uF.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A display circuit of a motorcycle intelligent instrument is characterized by comprising a power supply module, a controller module and a display module;

2. A motorcycle smart meter display circuit as claimed in claim 1, wherein the power module includes: the voltage input end IGN is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the first end of the inductor L1, the second end of the inductor L1 is connected with the first end of the capacitor EC5, the first end of the capacitor EC4, the first end of the capacitor EC1, the first end of the capacitor C1 and the voltage input end Vin of the power chip LDO1, the second end of the capacitor EC5 is connected with the second end of the capacitor EC4, the second end of the capacitor EC1, the second end of the capacitor C1, the first end of the capacitor C6, the first end of the capacitor C3, the first end of the capacitor EC6, the power ground end GND and the power ground of the power chip LDO1, the reset delay end D of the power chip LDO1 is connected with the second end of the capacitor C6, the voltage output end Vout of the power chip LDO1 is connected with the second end of the capacitor C3, the second end of the capacitor EC6 and the first end of the inductor L3, the second end of the inductor L3 is connected with the second end of the capacitor C18, and the voltage output end V5 + the power supply chip LDO 1;

3. A motorcycle smart meter display circuit as claimed in claim 1, characterised in that the display module comprises an indicator light module or/and a numerical display module;

4. The motorcycle intelligent instrument display circuit of claim 3, wherein the indicator light module comprises one or any combination of a left turn indicator module, a right turn indicator module, a low beam indicator module, a ready indicator module and an emergency indicator module;

the low beam indication module comprises: the anode of the diode D5 is connected with the low-beam indication control end PB05 of the controller U2, the cathode of the diode D5 is connected with the first end of the resistor R20, the second end of the resistor R20 is connected with the anode of the LED8 of the light emitting diode, and the cathode of the LED8 of the light emitting diode is connected with the power ground;

the emergency indication module comprises: a first end of the resistor R132 is connected with the +5V power supply voltage, a second end of the resistor R132 is connected with the anode of the light emitting diode LED96, and the cathode of the light emitting diode LED96 is connected with an emergency indication control end PA11 of the controller U2;

the ready indication module comprises: a first end of the resistor R138 is connected to the supply voltage +5V, a second end of the resistor R138 is connected to an anode of the light emitting diode LED89, and a cathode of the light emitting diode LED89 is connected to the preparation completion indication control terminal PA10 of the controller U2.

5. A motorcycle smart meter display circuit as claimed in claim 1, further comprising a line communication module, said line communication module comprising: the first end of the resistor R10 and the first end of the resistor R16 are connected with the communication end, the second end of the resistor R10 is connected with the first end of the resistor R11 and the power supply voltage +5V, the second end of the resistor R11 is connected with the base of the triode Q4 and the collector of the triode Q5, the base of the triode Q5 is connected with the first end of the resistor R17, the second end of the resistor R16 is connected with the first end of the capacitor C12, the second end of the capacitor C12 is connected with the second end of the resistor R17, the emitter of the triode Q5, the emitter of the triode Q4 and the power ground, the collector of the triode Q4 is connected with the first end of the resistor R9 and the communication end PA15 of the controller U2, and the second end of the resistor R9 is connected with the power supply voltage +5V.

6. The motorcycle intelligent instrument display circuit of claim 3, wherein the numerical value display module comprises one or any combination of a vehicle speed numerical value display module, a voltage numerical value display module and an electric quantity numerical value display module;

a bit output end GRID2 of the LED driving controller U3 is connected with a cathode of the light emitting diode LED18, a cathode of the light emitting diode LED19, a cathode of the light emitting diode LED20, a cathode of the light emitting diode LED21, a cathode of the light emitting diode LED22, a cathode of the light emitting diode LED23 and a cathode of the light emitting diode LED 24; the positive electrode of the light-emitting diode LED18 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light-emitting diode LED19 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light-emitting diode LED20 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light-emitting diode LED21 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light-emitting diode LED22 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light-emitting diode LED23 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light-emitting diode LED24 is connected with the segment output end SEG7 of the LED drive controller U3;

a bit output end GRID6 of the LED drive controller U3 is connected with a cathode of the LED46, a cathode of the LED48, a cathode of the LED50, a cathode of the LED52, a cathode of the LED54, a cathode of the LED56 and a cathode of the LED 58; the positive electrode of the light emitting diode LED46 is connected with the segment output end SEG1 of the LED drive controller U3, the positive electrode of the light emitting diode LED48 is connected with the segment output end SEG2 of the LED drive controller U3, the positive electrode of the light emitting diode LED50 is connected with the segment output end SEG3 of the LED drive controller U3, the positive electrode of the light emitting diode LED52 is connected with the segment output end SEG4 of the LED drive controller U3, the positive electrode of the light emitting diode LED54 is connected with the segment output end SEG5 of the LED drive controller U3, the positive electrode of the light emitting diode LED56 is connected with the segment output end SEG6 of the LED drive controller U3, and the positive electrode of the light emitting diode LED58 is connected with the segment output end SEG7 of the LED drive controller U3;

7. The motorcycle smart meter display circuit of claim 6, further comprising: the power ground terminal VSS1 of the LED driving controller U3 is connected to the power ground terminal VSS2 of the LED driving controller U3, the power ground terminal VSS3 of the LED driving controller U3 and the power ground, the data terminal DIO of the LED driving controller U3 is connected to the first terminal of the resistor R139 and the first terminal of the capacitor C13, the second terminal of the resistor R139 is connected to the first terminal of the resistor R140, the first terminal of the resistor R194 and the power voltage +5V, the second terminal of the resistor R140 is connected to the first terminal of the capacitor C14 and the clock terminal CLK of the LED driving controller U3, the second terminal of the resistor R194 is connected to the first terminal of the capacitor C16 and the chip select terminal STB of the LED driving controller U3, the second terminal of the capacitor C13 is connected to the second terminal of the capacitor C14, the second terminal of the capacitor C16 and the power ground, the power supply terminal VDD1 of the LED driving controller U3 is connected to the power voltage +5V, the power supply terminal VDD2 of the LED driving controller U3 is connected to the first terminal of the capacitor C15 and the second terminal of the capacitor EC 2.

8. A motorcycle smart meter display circuit as claimed in claim 1, wherein the controller module includes: a capacitor terminal VCAP of the controller U2 is connected to a first terminal of the capacitor C7 and a first terminal of the capacitor C8, a second terminal of the capacitor C8 is connected to a second terminal of the capacitor C7 and a power ground, a reset terminal RESETB of the controller U2 is connected to a first terminal of the capacitor C9, a first terminal of the resistor R8 and a reset interface RSTB, a second terminal of the resistor R8 is connected to a +5V power supply, a second terminal of the capacitor C9 is connected to a first terminal of the capacitor C10 and a power ground, a second terminal of the capacitor C10 is connected to a +5V power supply and a +5V power supply of the controller U2, a chip select terminal PA04 of the controller U2 is connected to a chip select terminal STB of the LED driver controller U3, a power ground terminal DVSS of the controller U2 is connected to a power ground, a power supply terminal DVCC of the controller U2 is connected to a first terminal of the capacitor C11 and a +5V power supply, a second terminal of the capacitor C11 is connected to a power ground, a data terminal PA09 of the controller U2 is connected to a first terminal of the resistor R141 of the controller U2, a clock terminal CLK of the controller U2 is connected to a clock terminal of the controller U3, a second terminal of the controller U3 is connected to a second terminal of the resistor U141 of the controller U3; the data end PA13/SWDIO of the controller U2 is connected with the interface 5 of the connector J1, the clock end PA14/SWCLK of the controller U2 is connected with the interface 4 of the connector J1, the start end BOOT0 of the controller U2 is connected with the first end of the resistor R7 and the interface 3 of the connector J1, the second end of the resistor R7 is connected with the power ground, the interface 2 of the connector J1 is connected with the power ground, and the interface 1 of the connector J1 is connected with +5V of power voltage.