CN210377163U

CN210377163U - Balance car main control system, control system and balance car

Info

Publication number: CN210377163U
Application number: CN201921870526.XU
Authority: CN
Inventors: 臧传美
Original assignee: Zhejiang Aerlang Technology Co Ltd
Current assignee: Zhejiang Aerlang Technology Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-04-21
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses a balance car major control system relates to balance car control technical field, and this major control system includes: the Bluetooth module is used for detecting signals, processing the detection signals, sending control signals, carrying out data communication with external Bluetooth equipment and outputting Bluetooth audio signals; the motor driving module is used for driving the motor to operate, the attitude detection module is used for acquiring motion data of the balance car, the auxiliary control interface is connected with the auxiliary control system, and the power supply module is used for providing a working power supply for each circuit module of the main control system; the Bluetooth module is connected with the motor driving module and the gesture detection module. The master control system ensures the stable communication of the Bluetooth module, simplifies the production process and reduces the manufacturing cost. The utility model also discloses a balance car control system and balance car. The balance car control system adopts double systems to realize the control of the balance car, and the master control system and the auxiliary control system respectively control one motor of the balance car.

Description

Balance car main control system, control system and balance car

Technical Field

The utility model relates to a balance car control technical field especially relates to a balance car major control system, control system and balance car.

Background

Balance cars, body-sensing cars, thinking cars, and berthing cars. The operating principle is mainly established on the basic principle called dynamic stability, a gyroscope and an acceleration sensor in the vehicle body are used for detecting the change of the vehicle body posture, and a servo control system is used for accurately driving a motor to perform corresponding adjustment so as to keep the balance of the system. With the rapid development of balance cars, people put forward more functional requirements in the aspects of leisure and entertainment on the basis of walking and body building.

The existing balance car has realized wireless control music broadcast and data transmission function, but these two kinds of functions are integrated respectively on two independent PCB board modules, and the audio frequency unit needs to pass through the connecting wire by the mainboard and just can work for its power supply, and the digital data transmission unit need paste just can work on the fixed pad of subplate, not only can influence the stability of circuit, and complicated walking line and loaded down with trivial details installation have also caused the hindrance for production moreover.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, one of the purposes of the utility model lies in through the bluetooth module and the power module of major control system integrated control function, data transmission and bluetooth audio frequency function, guarantees that the bluetooth module communication is stable, reduces external connecting wire and welding process, simplifies production processes, reduces manufacturing cost, and each module of major control system all uses power module to ensure normal work for its power supply simultaneously for signal transmission's stability is stronger.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a balance car master control system includes:

the Bluetooth module is used for detecting signals, processing the detection signals, sending control signals, receiving the control signals, carrying out data communication with external Bluetooth equipment and outputting Bluetooth audio signals, and is connected with the Bluetooth module;

the motor driving module is used for driving a motor to operate and is connected with the Bluetooth module;

the gesture detection module is used for acquiring motion data of the balance car and is connected with the Bluetooth module;

the auxiliary control interface is used for being connected with an auxiliary control system and is connected with the Bluetooth module;

and the power supply module is used for providing a working power supply.

Furthermore, the Bluetooth module is connected with the audio power amplifier module.

Furthermore, the power supply module comprises a first power supply unit, a second power supply unit and a third power supply unit, the second power supply unit is connected with the first power supply unit and the third power supply unit, and the voltage output by the third power supply unit supplies power to the bluetooth module.

Further, the first power supply unit comprises an enabling circuit, a voltage reducing circuit and a filter circuit, wherein the enabling circuit is connected with the voltage reducing circuit, and the voltage reducing circuit is connected with the filter circuit;

the enabling circuit is used for receiving a control signal of the Bluetooth module and controlling power-on or power-off according to the control signal;

the voltage reduction circuit is used for converting high voltage provided by the battery into low voltage;

the filter circuit is used for filtering noise signals.

Further, the enabling circuit comprises a capacitor C24, a resistor R86, a resistor R84, a diode D8, a resistor R85, a resistor R81, a resistor R80, a triode Q13, a resistor R79, and an interface J1; the first end of the resistor R86 is connected with the bluetooth module, the second end of the resistor R86 is connected with the anode of the diode D8, the first end of the capacitor C24 is connected with the bluetooth module, the second end of the capacitor C24 is grounded, the first end of the resistor R84 is connected with the anode of the diode D8, the second end of the resistor R84 is grounded, the anode of the diode D8 is connected with one port of the interface J1, the other port of the interface J1 is connected with one end of the resistor R79, the other end of the resistor R79 is grounded, the first end of the resistor R85 is connected with the cathode of the diode D8, the second end of the resistor R85 is connected with the base of the triode Q13, the first end of the resistor R80 is connected with the bluetooth module, the second end of the resistor R80 is connected with the base of the triode Q13, the first end of the resistor R81 is connected with the base of the triode Q13, the second.

Further, the enabling circuit further comprises a triode Q10, a resistor R77, a resistor R78, a resistor R92, a resistor R93, a resistor R94 and a resistor R82; the first end of the resistor R77 is connected with the collector of the triode Q13, the second end of the resistor R77 is connected with the base of the triode Q10, the first end of the resistor R78 is connected with the base of the triode Q10, the second end of the resistor R78 is connected with the emitter of the triode Q10, the emitter of the triode Q10 is connected with the power supply VA, the first end of the resistor R92 is connected with the collector of the triode Q10, the second end of the resistor R92 is connected with the first end of the resistor R93, the second end of the resistor R93 is connected with the Bluetooth module, the first end of the resistor R94 is connected with the Bluetooth module, and the second end of the; the first end of the resistor R82 is connected with the collector of the transistor Q10, and the second end of the resistor R82 is connected with the voltage reduction circuit.

Further, the step-down circuit includes: the voltage reduction circuit comprises a voltage reduction chip U12, a resistor R83, a resistor R46, a resistor R90, a capacitor C91, a diode D20, an inductor L2, a capacitor C89, a resistor R88 and a resistor R87; a first end of the resistor R83 is connected with a pin 1 of the buck chip U12, a second end of the resistor R83 is connected with a pin 2 of the buck chip U12, a first end of the resistor R46 is connected with a pin 3 of the buck chip U12, a first end of the resistor R46 is connected with a pin 4 of the buck chip U12, the pin 4 of the buck chip U12 is grounded, a first end of the resistor R90 is connected with a pin 7 of the buck chip U12, a second end of the resistor R90 is connected with a first end of the capacitor C91, a second end of the capacitor C91 is connected with a pin 8 of the buck chip U12, a cathode of the diode D20 is connected with a pin 8 of the buck chip U12, an anode of the diode D20 is grounded, a first end of the capacitor C89, a first end of the resistor R89 is connected with a pin 4 of the buck chip U89, a second end of the capacitor C89, a second end of the resistor R89, a first end of the resistor R89 is connected with a pin 5 of the buck chip U89, a pin 36, a first end of the inductor L2 is connected with a pin 5 of the buck chip U12, and a second end of the inductor L2 is connected with a pin 8 of the buck chip U12; the inductor L2 is used for converting the high-frequency periodic signal output by the buck chip U12 into a direct-current signal.

Further, the main control system of the balance car further comprises:

the brake detection module is used for detecting the current of the motor driving module and is connected with the motor driving module and the Bluetooth module;

and the current detection module is used for detecting the running current of the motor, and the current detection circuit is connected with the motor driving module and the Bluetooth module.

Further, the brake detection module includes: a capacitor C29, a resistor R110, a resistor R109, a triode Q1 and a resistor R108; the bluetooth module is connected to electric capacity C29's first end, the second end ground connection of electric capacity C29, bluetooth module is connected to resistance R110's first end, triode Q1's collecting electrode is connected to resistance R110's second end, power VD is connected to resistance R109's first end, triode Q1's collecting electrode is connected to resistance R109's second end, triode Q1's emitter ground, triode Q1's base is connected to resistance R108's first end, resistance R108's second end is connected the motor drive module.

Further, the main control system of the balance car further comprises:

the charging detection module is used for detecting the charging condition and is connected with the Bluetooth module;

and the motor coding sampling module is used for detecting the running condition of the motor and is connected with the Bluetooth module.

Further, the attitude detection module comprises a gyroscope for detecting the angular velocity and the acceleration of the balance car body.

The utility model discloses a second purpose lies in including a major control system and a vice accuse system through balance car control system, by a motor of major control system control balance car, and another motor of vice accuse system control balance car realizes the control to the balance car.

The second purpose of the utility model is realized by adopting the following technical scheme:

a balance car control system comprising the balance car master control system of any one of claims 1 to 11, for controlling one motor of a balance car.

Further, the balance car control system further includes:

the auxiliary control system is used for controlling the other motor of the balance car and is connected with the main control system;

and the peripheral device is used for receiving the control signal sent by the main control system and/or the auxiliary control system and executing corresponding functions.

Further, the secondary control system comprises:

the auxiliary control module is used for detecting signals, processing the detection signals and sending control signals;

the motor driving module is used for driving a motor to operate and is connected with the auxiliary control module;

the attitude detection module is used for acquiring motion data of the balance car and is connected with the auxiliary control module;

the main control interface is used for being connected with a main control system and is connected with the secondary control module;

and the power supply module is used for providing a working power supply.

Further, the secondary control system further comprises:

the brake detection module is used for detecting the current of the motor driving module and is connected with the motor driving module and the auxiliary control module;

the current detection module is used for detecting the running current of the motor, and the current detection circuit is connected with the motor driving module and the auxiliary control module;

and the motor coding and sampling module is used for detecting the running condition of the motor and is connected with the auxiliary control module.

The third object of the present invention is to provide a balance car, which comprises the second object of the present invention.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the master control system integrates the Bluetooth module and the power supply module, the Bluetooth module realizes Bluetooth audio and data transmission functions, and the Bluetooth module directly integrates the control function without an external connecting wire and a welding process, so that the communication of the Bluetooth module is more stable, the production process is simplified, and the manufacturing cost is reduced; each module of the master control system uses the power supply module to supply power for the master control system, so that normal work is ensured, the stability of signal transmission is higher, and the control of one motor of the balance car is realized.

The balance car control system adopts dual-system control, and comprises a main control system and an auxiliary control system, wherein the main control system controls one motor of the balance car, the auxiliary control system controls the other motor of the balance car, the balance car is controlled, the stable operation of each motor is guaranteed, any system is convenient to maintain and replace when damaged, and the maintenance and replacement of the whole control system of the balance car are avoided.

Drawings

Fig. 1 is a schematic block diagram of a balance car master control system according to an embodiment of the present invention;

fig. 2 is a circuit diagram of a bluetooth module according to an embodiment of the present invention;

fig. 3 is a functional block diagram of a bluetooth module according to an embodiment of the present invention;

fig. 4 is a circuit diagram of an audio power amplifier module according to an embodiment of the present invention;

fig. 5 is a circuit diagram of a motor driving module according to an embodiment of the present invention;

fig. 6 is a circuit diagram of an attitude detection module according to an embodiment of the present invention;

fig. 7 is a circuit diagram of a second power supply module according to an embodiment of the present invention;

fig. 8 is a circuit diagram of a third brake detection module according to an embodiment of the present invention;

fig. 9 is a circuit diagram of a three-current detection module according to an embodiment of the present invention;

fig. 10 is a schematic block diagram of a four-balance car master control system according to an embodiment of the present invention;

fig. 11 is a circuit diagram of a four-charge detection module according to an embodiment of the present invention;

fig. 12 is a circuit diagram of a four-motor coding sampling module according to an embodiment of the present invention;

fig. 13 is a circuit diagram of a four-photoelectric switch module according to an embodiment of the present invention;

FIG. 14 is a circuit diagram of the four communication recording module according to the embodiment of the present invention;

fig. 15 is a circuit diagram of a four LED lamp module according to an embodiment of the present invention;

fig. 16 is a circuit diagram of a four-buzzer module according to an embodiment of the present invention;

fig. 17 is a schematic block diagram of a control system of a five-balance car according to an embodiment of the present invention;

fig. 18 is a schematic block diagram of a five-pair control system according to an embodiment of the present invention.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, and it is to be understood that the following description of the present invention is made only by way of illustration and not by way of limitation with reference to the accompanying drawings. The resistor in each embodiment is a resistor network, and may be one resistor element, or may be a circuit in which a plurality of resistor elements having different and/or the same resistance values are connected in series and/or in parallel. The capacitor in each embodiment is a capacitor network, and may be one capacitor element, or may be a circuit in which a plurality of capacitor elements with different and/or the same capacitance values are connected in series and/or in parallel. The chip model, pins and size in each embodiment can be adjusted according to the needs. The various embodiments may be combined with each other to form other embodiments not shown in the following description.

Example one

The embodiment I provides a balance car master control system, which aims to ensure the communication stability of a Bluetooth module through a master control system integrated control function, a Bluetooth module with a data transmission function and a Bluetooth audio function and a power supply module, reduce external connecting wires and welding procedures, simplify production procedures and reduce manufacturing cost.

Referring to fig. 1, a main control system of a balance car includes a bluetooth module, a motor driving module, an attitude detecting module, a secondary control interface, and a power supply module. The Bluetooth module is used for detecting signals, processing the detected signals and sending control signals, and can adopt various embedded single-chip microcomputers integrating Bluetooth transmission functions to detect the detection signals input by all circuit modules and output the control signals to all circuit modules in the master control system, so that various control functions are realized. Referring to fig. 2, the bluetooth module includes a bluetooth chip, a resistor R21, and a capacitor C15. Pin 1, pin 9, pin 36, pin 48 of bluetooth chip connect the power VD, and pin 8, pin 23, pin 35, pin 44, pin 47 of bluetooth chip ground connection, and resistance R21 is connected between pin 7 of bluetooth chip and power VD, and electric capacity C15 is connected between pin 7 of main control chip and ground. The pin 24 of the Bluetooth chip is connected with the Bluetooth antenna E through a capacitor C22, and is grounded through a capacitor C40 at the connection point of the capacitor C22 and the Bluetooth antenna E, the pin U0-3, the pin U0-4, the pin U0-10, the pin U0-11, the pin U0-12, the pin U0-13, the pin U0-14, the pin U0-15, the pin U0-16, the pin U0-17, the pin U0-18, the pin U0-20, the pin U0-21, the pin U0-22, the pin U0-25, the pin U0-26, the pin U0-27, the pin U0-28, the pin U0-29, the pin U0-30, the pin U0-31, the pin U0-32, the pin U0-34, the pin U0-37, the pin U0-38, the pin U0-39, and the pin U3639-33-31 of the Bluetooth chip, Other pins such as the pins U0-40, the pins U0-41, the pins U0-42, the pins U0-43, and the pins U0-46 are used for receiving a detection signal or transmitting a control signal. Other reserved pins can be connected with other circuit modules to realize corresponding control functions.

The Bluetooth module is used for receiving the control signal, carrying out data communication with external Bluetooth equipment and outputting a Bluetooth audio signal. The external bluetooth device may be an external device having a bluetooth transmission function, such as a mobile phone, a bluetooth bracelet, a bluetooth helmet, a bluetooth control switch, and the like, and the external bluetooth device includes but is not limited to the above components, which may improve the usability of the balance car. The Bluetooth module is connected with the audio power amplifier module, and the audio power amplifier module amplifies Bluetooth audio signals.

The Bluetooth module can also be replaced by a control chip with other wireless transmission functions such as WIFI.

Referring to fig. 3, the bluetooth module includes a data transmission unit for receiving data such as control signals of external bluetooth, an audio transmission unit for receiving audio signals of external bluetooth devices, and a data processing unit for calculating and processing various input data and outputting control signals to other modules. The above units may be units divided by hardware or units divided by functions.

Referring to fig. 4, the circuit of the audio power amplifier module includes an audio power amplifier chip, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C9, a capacitor C10, a capacitor C11, and a patch cable P1. Audio power amplifier chip is connected to resistance R5's one end, power supply 5V is connected to resistance R5's the other end, audio power amplifier chip is connected to resistance R6's one end, power supply 5V is connected to resistance R6's the other end, audio power amplifier chip is connected to resistance R7's one end, resistance R7's other end ground connection, audio power amplifier chip is connected to resistance R8's one end, electric capacity C9's one end is connected to resistance R8's the other end, bluetooth module is connected to electric capacity C9's the other end, audio power amplifier chip is connected to electric capacity C11's one end, electric capacity C11's other end ground connection, electric capacity C10's one end is connected audio power amplifier chip's pin 6 and ground connection, electric capacity C10's one end is connected audio power amplifier chip's. The mute switch signal output by the Bluetooth module is input into the audio power amplifier chip through the resistor R1, and the analog audio output by the Bluetooth module is input into the audio power amplifier chip through the capacitor C9 and the resistor R8 in sequence. The audio power amplifier chip is connected with audio equipment through a plug-in flat cable P1, the audio equipment can be various types of speakers, microphones and the like with audio output equipment, such as earphones, earphone type microphones, head-wearing earphones and the like, and the audio equipment comprises but is not limited to the above components, so that the use performance of the balance car can be improved.

And the motor driving module is used for driving the motor to operate and is connected with the Bluetooth module. The motor driving module comprises a first half-bridge gate driving circuit, a second half-bridge gate driving circuit and a third half-bridge gate driving circuit, and the three half-bridge gate driving circuits are identical in structure.

Referring to fig. 5, the first half-bridge gate driving circuit of the motor driving module includes a half-bridge gate driving circuit chip U6, a diode D1, a capacitor C105, a resistor R31, a resistor R33, an NMOS transistor QB2, a resistor R32, a resistor R34, an NMOS transistor QB1, a resistor R11C, and an interface TA5, and the NMOS transistor QB2 and the NMOS transistor QB1 form a group of NMOS paired transistors. Pin 2 and pin 3 of the half-bridge gate driving circuit chip U6 are connected to pins U0-31 and U0-28 of the bluetooth module, pin 4 of the half-bridge gate driving circuit chip U6 is grounded, the anode of the diode D1 is connected to pin 1 of the half-bridge gate driving circuit chip U6, pin 1 of the half-bridge gate driving circuit chip U6 is connected to the power supply VB, the cathode of the diode D1 is connected to pin 8 of the half-bridge gate driving circuit chip U6, the capacitor C105 is connected between pin 8 of the half-bridge gate driving circuit chip U6 and pin 6 of the half-bridge gate driving circuit chip U6, the resistor R31 is connected between pin 7 of the half-bridge gate driving circuit chip U6 and the gate of the NMOS tube QB2, the resistor R33 is connected between the gate of the NMOS tube QB 8 and pin 6 of the half-bridge driving circuit chip U6, the drain of the NMOS tube 2 is connected to the power supply VA, the source of the NMOS tube 2 is connected to the drain of the NMOS, the source of the NMOS transistor QB2 and the drain of the NMOS transistor QB1 are both connected to the interface TA5, the resistor R32 is connected between the pin 5 of the half-bridge gate driver circuit chip U6 and the gate of the NMOS transistor QB1, the resistor R34 is connected between the gate and the source of the NMOS transistor QB1, the resistor R11C is connected between the source and the drain of the NMOS transistor QB1, and the source of the NMOS transistor QB2 outputs current, which is externally connected to the motor through the interface TA 5.

The output current of the NMOS tube QB2 of the first half-bridge gate drive circuit passes through the motor to reach the NMOS tube QB3 of the second half-bridge gate drive circuit; the output current of the NMOS tube QB4 of the second half-bridge gate drive circuit passes through the motor to reach the NMOS tube QB5 of the third half-bridge gate drive circuit; the output current of the NMOS tube QB6 of the third half-bridge gate drive circuit passes through the motor to the NMOS tube QB1 of the first half-bridge gate drive circuit.

Pin 2 and pin 3 of three half-bridge grid drive circuit chip connect bluetooth module, receive bluetooth module's motor rotation signal, turn into the high voltage signal of the driving motor operation that corresponds with battery voltage according to motor rotation signal, export and carry out closure and disconnection for the NMOS geminate transistor that is connected, close and break off in proper order through three NMOS geminate transistors of control, and driving motor is positive and negative rotatory.

And the gesture detection module is used for acquiring the motion data of the balance car and is connected with the Bluetooth module. The gesture detection module comprises a gyroscope, the gyroscope can adopt a motion processing chip and is used for detecting motion data information of the balance car body such as angular velocity and acceleration of the balance car body, the measured analog quantity is converted into a digital quantity by using a digital motion processor and an I2C interface of the gyroscope, an accurate inclination angle value is obtained, and the digital quantity is transmitted to the Bluetooth module.

Referring to fig. 6, the gesture detection module includes two motion processing chips. A pin 24 and a pin 23 of a U1 of the motion processing chip are respectively connected with a port 2 of a resistor R17 and a port 2 of a resistor R18, a port 1 of a resistor R17 and a port 1 of a resistor R18 are respectively connected with pins U0-43 and U0-42 of a Bluetooth module, a pin 2 and a pin 3 of a U3 of the motion processing chip are respectively connected with a port 2 of a resistor R18 and a port 2 of a resistor R17, the resistor R15 is connected between a resistor R17 and a power supply VD, and the resistor R16 is connected between a resistor R18 and the power supply VD; the pin 22, the pin 13 and the pin 8 of the motion processing chip U1 are connected with a power supply VD, the pin 20, the pin 18, the pin 9 and the pin 11 of the motion processing chip U1 are grounded, and the capacitor C7 is connected between the pin 10 of the motion processing chip U1 and the ground; the pin 1, the pin 5 and the pin 16 of the motion processing chip U3 are connected with a power supply VD, the pin 4, the pin 8, the pin 9, the pin 10, the pin 11, the pin 12, the pin 13 and the pin 15 of the motion processing chip U3 are grounded, and the capacitor C25 is connected between the pin 14 of the motion processing chip U3 and the ground. In actual use, one of the two chips is selected for use according to the cost or stock condition.

And the auxiliary control interface of the main control system of the balance vehicle is used for being connected with the auxiliary control system, and the auxiliary control interface is connected with the Bluetooth module to realize communication with the auxiliary control system.

And the power supply module is used for providing working power supply for each circuit module in the master control system. And each circuit module is ensured to work normally, so that the signal transmission stability in the master control system is stronger.

Example two

The second embodiment is an improvement on the first embodiment, in order to meet different power supply requirements of each circuit module of the main control system, the power supply module changes high voltage drop provided by the battery power supply into different power supply voltages through the first power supply unit, the second power supply unit and the third power supply unit, and the first power supply unit, the second power supply unit and the third power supply unit are sequentially connected. The first power supply unit reduces a power supply voltage VA to a voltage VB, the second power supply unit reduces the voltage VB to a voltage VC, and the third power supply unit reduces the voltage VC to a voltage VD. And the voltage VD output by the third power supply unit supplies power to the Bluetooth module, and the voltage VC output by the second power supply unit supplies power to the audio power amplifier module. The second power supply unit comprises a low-dropout linear voltage-stabilizing voltage-reducing chip U1, and the third power supply unit comprises a low-dropout linear voltage-stabilizing voltage-reducing chip U2.

The power supply module further comprises an interface BLE1, wherein the interface BLE1 is a reserved power supply port and supplies power to peripheral devices. The peripheral devices comprise a battery, a motor, a lamp strip, a lighting lamp, an electrifying switch and the like, and the peripheral devices comprise but are not limited to the components, so that the service performance of the balance car can be improved.

The first power supply unit comprises an enabling circuit, a voltage reduction circuit and a filter circuit, wherein the enabling circuit is connected with the voltage reduction circuit, and the voltage reduction circuit is connected with the filter circuit. The enabling circuit is used for receiving a control signal of the Bluetooth module and controlling power-on or power-off according to the control signal; the voltage reduction circuit is used for converting high voltage provided by the battery into low voltage; the filter circuit is used for filtering noise signals. The filtering unit is a circuit formed by connecting a plurality of capacitive elements with different and/or same capacitance values, and the specific capacitance value is determined according to the actual circuit requirements. Fig. 7 shows a circuit of the power supply module.

The enabling unit receives a power-on signal of a switch button of the balance car and activates the voltage reduction unit to carry out voltage conversion. The enabling unit comprises a capacitor C24, a resistor R86, a resistor R84, a diode D8, a resistor R85, a resistor R81, a resistor R80, a triode Q13, a resistor R79 and an interface J1; the first end of the resistor R86 is connected with the bluetooth module, the second end of the resistor R86 is connected with the anode of the diode D8, the first end of the capacitor C24 is connected with the bluetooth module, the second end of the capacitor C24 is grounded, the first end of the resistor R84 is connected with the anode of the diode D8, the second end of the resistor R84 is grounded, the anode of the diode D8 is connected with one port of the interface J1, the other port of the interface J1 is connected with one end of the resistor R79, the other end of the resistor R79 is grounded, the first end of the resistor R85 is connected with the cathode of the diode D8, the second end of the resistor R85 is connected with the base of the triode Q13, the first end of the resistor R80 is connected with the bluetooth module, the second end of the resistor R80 is connected with the base of the triode Q13, the first end of the resistor R81 is connected with the base of the triode Q13, the second.

The enabling unit further comprises a triode Q10, a resistor R77, a resistor R78, a resistor R92, a resistor R93, a resistor R94 and a resistor R82; the first end of the resistor R77 is connected with the collector of the triode Q13, the second end of the resistor R77 is connected with the base of the triode Q10, the first end of the resistor R78 is connected with the base of the triode Q10, the second end of the resistor R78 is connected with the emitter of the triode Q10, the emitter of the triode Q10 is connected with the power supply VA, the first end of the resistor R92 is connected with the collector of the triode Q10, the second end of the resistor R92 is connected with the first end of the resistor R93, the second end of the resistor R93 is connected with the Bluetooth module, the first end of the resistor R94 is connected with the Bluetooth module, and the second end of the; the first end of the resistor R82 is connected with the collector of the transistor Q10, and the second end of the resistor R82 is connected with the voltage reduction circuit.

The interface J1 is connected with a switch button of the balance car, when the balance car is closed, the button is pressed down, the balance car is powered on, a power supply VA passes through a resistor R79, a diode D8, a triode Q13, a triode Q13 and a triode Q10 and is conducted, a power supply module supplies power to each circuit module, a Bluetooth module detects battery voltage VA through a port U0-14, meanwhile, the Bluetooth module detects a power-on signal through a port U0-15, the Bluetooth module sends a power supply signal to a power supply module through a port U0-20, the triode Q13 is kept conducted, the power supply module keeps supplying power, and after the button is pressed down, the power supply of each module of the main control system is not influenced by resilience of; the power-off process is consistent with the power-on process.

The step-down circuit includes: the voltage reduction circuit comprises a voltage reduction chip U12, a resistor R83, a resistor R46, a resistor R90, a capacitor C91, a diode D20, an inductor L2, a capacitor C89, a resistor R88 and a resistor R87; a first end of the resistor R83 is connected with a pin 1 of the buck chip U12, a second end of the resistor R83 is connected with a pin 2 of the buck chip U12, a first end of the resistor R46 is connected with a pin 3 of the buck chip U12, a first end of the resistor R46 is connected with a pin 4 of the buck chip U12, the pin 4 of the buck chip U12 is grounded, a first end of the resistor R90 is connected with a pin 7 of the buck chip U12, a second end of the resistor R90 is connected with a first end of the capacitor C91, a second end of the capacitor C91 is connected with a pin 8 of the buck chip U12, a cathode of the diode D20 is connected with a pin 8 of the buck chip U12, an anode of the diode D20 is grounded, a first end of the capacitor C89, a first end of the resistor R89 is connected with a pin 4 of the buck chip U89, a second end of the capacitor C89, a second end of the resistor R89, a first end of the resistor R89 is connected with a pin 5 of the buck chip U89, a pin 36, a first end of the inductor L2 is connected with a pin 5 of the buck chip U12, and a second end of the inductor L2 is connected with a pin 8 of the buck chip U12; the inductor L2 is used for converting the high-frequency periodic signal output by the buck chip U12 into a direct-current signal.

EXAMPLE III

The third embodiment is an improvement on the basis of the first embodiment or the second embodiment, and the main control system of the balance car further comprises a brake detection module and a current detection module. The brake detection module is used for detecting the current of the motor driving module and is connected with the motor driving module and the Bluetooth module. And the current detection module is used for detecting the running current of the motor, and the current detection circuit is connected with the motor driving module and the Bluetooth module. The power supply module provides required working voltage for the brake detection module and the current detection module respectively.

Referring to fig. 8, the circuit of the brake detection module includes a capacitor C29, a resistor R110, a resistor R109, a transistor Q1, and a resistor R108; the bluetooth module is connected to electric capacity C29's first end, the second end ground connection of electric capacity C29, bluetooth module is connected to resistance R110's first end, triode Q1's collecting electrode is connected to resistance R110's second end, power VD is connected to resistance R109's first end, triode Q1's collecting electrode is connected to resistance R109's second end, triode Q1's emitter ground, triode Q1's base is connected to resistance R108's first end, resistance R108's second end is connected the motor drive module. When the current of the motor driving module is overlarge, the brake detection module receives a signal of the Bluetooth module through the port U0-25, the triode Q1 is conducted, and the hardware triggers the output of the motor driving module to be powered off or the system to be powered off.

The current detection module is connected with the motor driving module and is connected with a port 1 of a resistor R0N0, a port 2 of a resistor R0N0 is grounded, and the resistor R0N0 is a milliohm-level sampling resistor R. The current detection module detects the power-on voltage difference of the milliohm level sampling resistor R0N0, and a detection signal is amplified and sampled by the operational amplifier and then is input into the Bluetooth module. Referring to fig. 9, the current detection module includes an operational amplifier U5A, a resistor R102, a diode D14, a resistor R100, a resistor R103, a resistor R96, a resistor R97, an operational amplifier U5B, a resistor R104, a diode D15, a resistor R101, a resistor R105, a resistor R98, and a resistor R99.

Pin 1 of the operational amplifier U5A is connected with pins U0-18 of the Bluetooth module, a resistor R102 is connected between pin 2 of the operational amplifier U5A and pins U0-18 of the Bluetooth module, the cathode of a diode D14 is connected with pin 2 of the operational amplifier U5A, the anode of a diode D14 is connected with pin 3 of the operational amplifier U5A, a resistor R100 is connected between pin 3 of the operational amplifier U5A and the ground, a resistor R103 is connected between the cathode of a diode D14 and the output end of the motor driving module, one end of the resistor R96 is connected with pin 3 of the operational amplifier U5A, the other end of the resistor R96 is connected with one end of a resistor R97, and the other end of the resistor R97 is connected with the motor driving circuit.

Pin 1 of the operational amplifier U5B is connected with pins U0-17 of the Bluetooth module, a resistor R104 is connected between pin 6 of the operational amplifier U5B and pins U0-17 of the Bluetooth module, the cathode of the diode D15 is connected with pin 6 of the operational amplifier U5B, the anode of the diode D15 is connected with pin 5 of the operational amplifier U5B, a resistor R101 is connected between pin 5 of the operational amplifier U5B and the ground, a resistor R105 is connected between the cathode of the diode D15 and the output end of the motor driving module, one end of the resistor R98 is connected with pin 5 of the operational amplifier U5B, the other end of the resistor R98 is connected with one end of the resistor R99, and the other end of the resistor R99 is connected with the motor driving circuit.

The current detection module further comprises a resistor R107, a capacitor C2 and a resistor R106, wherein the resistor R107 is connected between the Bluetooth module pin U0-16 and a power supply VD, the capacitor C2 is connected between the Bluetooth module pin U0-16 and the ground, and the resistor R106 is connected between the Bluetooth module pin U0-16 and the motor drive module. The circuit detects the total current of the motor drive module,

the current detection module respectively detects U-phase current and X-phase current of the motor drive module and total current of the motor drive module. The current detection module respectively inputs a detection signal of U-phase current, a detection signal of X-phase current and an overcurrent detection signal of total current to the Bluetooth module through the ports U0-18, U0-17 and U0-16. The Bluetooth module obtains an overcurrent detection signal through the port U0-16, when the total current is detected to be overlarge, the Bluetooth module performs a current reduction action on the motor driving module, and the Bluetooth module adjusts pwm duty ratio output to the motor driving module.

Example four

In a fourth embodiment, the improvement is made on the basis of any one or more of the first to third embodiments, and referring to fig. 10, the main control system of the balancing vehicle further includes a charging detection module and a motor encoding and sampling module. And the charging detection module is used for detecting the charging condition and is connected with the Bluetooth module. And the motor coding sampling module is used for detecting the running condition of the motor and is connected with the Bluetooth module. The power supply module provides required working voltage for the charging detection module and the motor coding sampling module respectively. Referring to fig. 11, the charging detection module includes an interface LED4, a diode D0, a resistor R55, a resistor R54, a capacitor C23, a transistor Q12, and a resistor R49. The anode of the diode D0 is connected with the pin 3 of the interface LED4, the pin 1 and the pin 2 of the LED4 are grounded, the cathode of the diode D0 is connected with the power supply VA, the resistor R55 is connected in series between the anode of the diode D0 and the base of the triode Q12, the resistor R54 is connected in parallel between the base and the emitter of the triode Q12, the capacitor C23 is connected in parallel between the base and the emitter of the triode Q12, the resistor R49 is connected in series between the collector of the triode Q12 and the power supply VD, and the collector of the triode Q12 is connected with the Bluetooth module through the port U0-4.

Referring to fig. 12, a circuit diagram of the motor code sampling module includes an interface JA2, a diode D2, a capacitor C9, a resistor R22, a resistor R23, a capacitor C10, a resistor R24, a resistor R25, a capacitor C11, a resistor R26, a resistor R27, a capacitor C12, a resistor R1, a resistor R40, and a capacitor C26. The capacitor C9 is connected in series between the cathode of the diode D2 and the ground, the cathode of the diode D2 is connected with the pin 1 of the interface JA2, the anode of the diode D2 is connected with the power supply VC, the resistor R22 is connected in series between one end of the resistor R23 and the power supply VD, one end of the resistor R23 is connected with the pin 2 of the interface JA2, the capacitor C10 is connected in series between the other end of the resistor R23 and the ground, and the other end of the resistor R23 is connected with the Bluetooth module through the port U0-3; the resistor R24 is connected in series between one end of the resistor R25 and the power supply VD, one end of the resistor R25 is connected with the pin 3 of the interface JA2, the capacitor C11 is connected in series between the other end of the resistor R25 and the ground, and the other end of the resistor R25 is connected with the Bluetooth module through the port U0-11; the resistor R26 is connected in series between one end of the resistor R27 and the power supply VD, one end of the resistor R27 is connected with the pin 4 of the interface JA2, the capacitor C12 is connected in series between the other end of the resistor R27 and the ground, and the other end of the resistor R27 is connected with the Bluetooth module through the port U0-22; the resistor R1 is connected in series between one end of the resistor R40 and the power supply VD, one end of the resistor R40 is connected with the pin 6 of the interface JA2, the capacitor C26 is connected in series between the other end of the resistor R40 and the ground, and the other end of the resistor R40 is connected with the Bluetooth module through the port U0-10; pin 5 of interface JA2 is connected to ground. The motor coding sampling module is connected with a Hall encoder or a photoelectric encoder through an interface JA2 to detect the running condition of the motor.

The main control system of the balance car can further comprise a photoelectric switch module, a communication burning module, an LED lamp module and a buzzer module. The photoelectric switch module is used for detecting a person standing on the balance car body; the communication burning module is used for carrying out data transmission with external equipment; and the LED lamp module is used for controlling the tail lamp and the fault display lamp of the balance car body. The balance car main control system comprises the modules but is not limited to the modules, and the service performance of the balance car can be improved.

Referring to fig. 13, the circuit of the optoelectronic switch module includes an optoelectronic switch J3, a resistor R5, a resistor R6, an optoelectronic switch J2, a resistor R62, and a resistor R52. The resistor R5 is connected in series between a power supply VD and a pin 1 of the photoelectric switch J3, a pin 2 and a pin 4 of the photoelectric switch J3 are grounded, the resistor R6 is connected in series between the power supply VD and a pin 3 of the photoelectric switch J3, and the pin 3 of the photoelectric switch J3 is connected with the Bluetooth module through a port U0-32; the resistor R62 is connected in series between a power supply VD and a pin 1 of the photoelectric switch J2, a pin 2 and a pin 4 of the photoelectric switch J2 are grounded, the resistor R52 is connected in series between the power supply VD and a pin 3 of the photoelectric switch J2, and the pin 3 of the photoelectric switch J2 is connected with the Bluetooth module through a port U0-21. A light emitting device is connected between a pin 1 and a pin 2 of the photoelectric switch J3, a light emitting device is connected between a pin 1 and a pin 2 of the photoelectric switch J2, a photosensitive element is connected between a pin 3 and a pin 4 of the photoelectric switch J3, a photosensitive element is connected between a pin 3 and a pin 4 of the photoelectric switch J2, when the photosensitive element is not shielded, the photosensitive element is conducted, and the ports U0-32 and U0-21 are grounded; when the shielding occurs, the photosensitive element is disconnected, and the ports U0-32 and U0-21 output the power supply voltage VD.

Referring to fig. 14, the circuit of the communication burning module includes a resistor R29, a resistor R30, an interface USART, and an interface JA 1. The resistor R29 is connected in series between a pin 2 of the interface USART and the Bluetooth module, the resistor R30 is connected in series between a pin 3 of the interface USART and the Bluetooth module, a pin 1 of the interface USART is connected with a power supply voltage VB, and a pin 4 of the interface USART is grounded; pin 1 of interface JA1 is connected with power supply voltage VD, pin 4 of interface JA1 is grounded, and pin 2 and pin 3 of interface JA1 are respectively connected with Bluetooth module through ports U0-37 and U0-34. The interface USART is used for communicating with the auxiliary control system, and the interface JA1 is a burning interface.

Referring to fig. 15, the circuit of the LED lamp module includes a resistor R4, a resistor R14, a transistor Q3, a resistor R13, a transistor Q4, a resistor R12, a transistor Q5, an interface LED1, a resistor R19, a transistor Q7, a resistor R75, an interface LED2, a resistor R8, a transistor Q9, a resistor R3, and an interface LED 3. The resistor R4 is connected in series between the power supply VB and the pin 1 of the interface LED1, the resistor R14 is connected in series between the bases of the triode Q3, the collector of the triode Q3 is connected with the pin 2 of the interface LED1, the emitter of the triode Q3 is grounded, the resistor R13 is connected in series between the bases of the triode Q4, the collector of the triode Q4 is connected with the pin 3 of the interface LED1, the emitter of the triode Q4 is grounded, the resistor R12 is connected in series between the bases of the triode Q5, the collector of the triode Q5 is connected with the pin 4 of the interface LED1, and the emitter of the triode Q5 is grounded. The resistor R19 is connected in series between the Bluetooth module and the base of the triode Q7, the emitter of the triode Q7 is grounded, the resistor R75 is connected in series between the collector of the triode Q7 and the pin 2 of the interface LED2, the pin 2 and the pin 3 of the interface LED2 are connected, and the pin 1 of the interface LED2 is connected with the power supply VB; the resistor R8 is connected in series between the Bluetooth module and the base of the triode Q9, the emitter of the triode Q9 is grounded, the resistor R3 is connected in series between the collector of the triode Q9 and the pin 2 of the interface LED3, the pin 2 and the pin 3 of the interface LED3 are connected, and the pin 1 of the interface LED3 is connected with the power supply VB. Pin 2, pin 3, pin 4 of interface LED1 connect red light, green light, blue light respectively for show the trouble, and interface LED2, interface LED3 connect the indicator.

Referring to fig. 16, the circuit of the buzzer module includes a resistor R2, a transistor Q2, a diode D3, and a buzzer BUZZ. The resistor R2 is connected in series between the Bluetooth module and the base of the triode Q2, the emitter of the triode Q2 is grounded, the anode of the diode D3 is connected with the collector of the triode Q2, the cathode of the diode D3 is connected with the power supply VC, and two ports of the buzzer BUZZ are respectively connected with the anode of the diode D3 and the cathode of the diode D3.

EXAMPLE five

The fifth embodiment is a control system of a balance car, and please refer to fig. 17, which includes the main control system of the balance car of the above embodiment, and the main control system is used for controlling the operation of one motor of the balance car. The balance car control system also comprises a secondary control system used for controlling another motor of the balance car and peripheral devices; the main control system is connected with the auxiliary control system.

Referring to fig. 18, a functional block diagram of the secondary control system includes a secondary control module, a motor driving module, an attitude detection module, a main control interface, and a power supply module. The auxiliary control module is used for detecting signals, processing the detection signals and sending control signals; the motor driving module is used for driving another motor of the balance car to operate and is connected with the auxiliary control module; the attitude detection module is used for acquiring motion data of the balance car and is connected with the auxiliary control module; the main control interface is used for being connected with a main control system and is connected with the secondary control module; and the power supply module is used for providing working power supply for each circuit module of the auxiliary control system. The secondary control module can be consistent with the Bluetooth module structure in the master control system.

The auxiliary control system further comprises a brake detection module, a current detection module and a motor coding sampling module. The brake detection module is used for detecting the current of the motor driving module and is connected with the motor driving module and the auxiliary control module; the current detection module is used for detecting the running current of the motor, and the current detection circuit is connected with the motor driving module and the auxiliary control module; and the motor coding and sampling module is used for detecting the running condition of the motor and is connected with the auxiliary control module.

The auxiliary control system further comprises a photoelectric switch module, a communication burning module and an LED lamp module. The photoelectric switch module is used for detecting a person standing on the balance car body; the communication burning module is used for carrying out data transmission with external equipment; and the LED lamp module is used for controlling the tail lamp and the electric quantity display lamp of the balance car body.

The circuit modules for realizing the same functions in the auxiliary control system and the main control system can adopt the same circuit structure. The balance car control system adopts dual-system control, and comprises a main control system and an auxiliary control system, wherein the main control system controls one motor of the balance car, the auxiliary control system controls the other motor of the balance car, the balance car is controlled, the stable operation of each motor is guaranteed, any system is convenient to maintain and replace when damaged, and the maintenance and replacement of the whole control system of the balance car are avoided.

And the peripheral device is used for receiving the control signal sent by the main control system and/or the auxiliary control system and executing corresponding functions. The peripheral devices comprise a battery, a motor, a lamp strip, a lighting lamp, an electrifying switch and the like, and the peripheral devices comprise but are not limited to the components, so that the service performance of the balance car can be improved.

EXAMPLE six

The sixth embodiment is a balance car, which comprises the control system of the fifth embodiment, and further comprises a frame and wheels with hub motors at two sides of the frame, wherein the master control system and the auxiliary control system are mounted on the frame, the frame can be integrated or layered, the structure is compact, and the balance car is convenient to control and complete in function.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides a balance car major control system which characterized in that: the method comprises the following steps:

the Bluetooth module is used for detecting signals, processing the detection signals, sending control signals, receiving the control signals, carrying out data communication with external Bluetooth equipment and outputting Bluetooth audio signals;

and the power supply module is used for providing a working power supply.

2. The main control system of the balance car according to claim 1, characterized in that: the Bluetooth module is used for receiving Bluetooth audio signals and amplifying the Bluetooth audio signals, and the audio power amplifier module is connected with the Bluetooth module.

3. The main control system of the balance car according to claim 1, characterized in that: the power supply module comprises a first power supply unit, a second power supply unit and a third power supply unit, the second power supply unit is connected with the first power supply unit and the third power supply unit, and the voltage output by the third power supply unit supplies power to the Bluetooth module.

4. The main control system of the balance car according to claim 3, characterized in that: the first power supply unit comprises an enabling circuit, a voltage reduction circuit and a filter circuit, wherein the enabling circuit is connected with the voltage reduction circuit, and the voltage reduction circuit is connected with the filter circuit;

the filter circuit is used for filtering noise signals.

5. The main control system of the balance car according to claim 4, characterized in that: the enabling circuit comprises a capacitor C24, a resistor R86, a resistor R84, a diode D8, a resistor R85, a resistor R81, a resistor R80, a triode Q13, a resistor R79 and an interface J1; the first end of the resistor R86 is connected with the bluetooth module, the second end of the resistor R86 is connected with the anode of the diode D8, the first end of the capacitor C24 is connected with the bluetooth module, the second end of the capacitor C24 is grounded, the first end of the resistor R84 is connected with the anode of the diode D8, the second end of the resistor R84 is grounded, the anode of the diode D8 is connected with one port of the interface J1, the other port of the interface J1 is connected with one end of the resistor R79, the other end of the resistor R79 is grounded, the first end of the resistor R85 is connected with the cathode of the diode D8, the second end of the resistor R85 is connected with the base of the triode Q13, the first end of the resistor R80 is connected with the bluetooth module, the second end of the resistor R80 is connected with the base of the triode Q13, the first end of the resistor R81 is connected with the base of the triode Q13, the second.

6. The main control system of the balance car according to claim 4, characterized in that: the enabling circuit further comprises a triode Q10, a resistor R77, a resistor R78, a resistor R92, a resistor R93, a resistor R94 and a resistor R82; the first end of the resistor R77 is connected with the collector of the triode Q13, the second end of the resistor R77 is connected with the base of the triode Q10, the first end of the resistor R78 is connected with the base of the triode Q10, the second end of the resistor R78 is connected with the emitter of the triode Q10, the emitter of the triode Q10 is connected with the power supply VA, the first end of the resistor R92 is connected with the collector of the triode Q10, the second end of the resistor R92 is connected with the first end of the resistor R93, the second end of the resistor R93 is connected with the Bluetooth module, the first end of the resistor R94 is connected with the Bluetooth module, and the second end of the; the first end of the resistor R82 is connected with the collector of the transistor Q10, and the second end of the resistor R82 is connected with the voltage reduction circuit.

7. The main control system of the balance car according to claim 4, characterized in that: the step-down circuit includes: the voltage reduction circuit comprises a voltage reduction chip U12, a resistor R83, a resistor R46, a resistor R90, a capacitor C91, a diode D20, an inductor L2, a capacitor C89, a resistor R88 and a resistor R87; a first end of the resistor R83 is connected with a pin 1 of the buck chip U12, a second end of the resistor R83 is connected with a pin 2 of the buck chip U12, a first end of the resistor R46 is connected with a pin 3 of the buck chip U12, a first end of the resistor R46 is connected with a pin 4 of the buck chip U12, the pin 4 of the buck chip U12 is grounded, a first end of the resistor R90 is connected with a pin 7 of the buck chip U12, a second end of the resistor R90 is connected with a first end of the capacitor C91, a second end of the capacitor C91 is connected with a pin 8 of the buck chip U12, a cathode of the diode D20 is connected with a pin 8 of the buck chip U12, an anode of the diode D20 is grounded, a first end of the capacitor C89, a first end of the resistor R89 is connected with a pin 4 of the buck chip U89, a second end of the capacitor C89, a second end of the resistor R89, a first end of the resistor R89 is connected with a pin 5 of the buck chip U89, a pin 36, a first end of the inductor L2 is connected with a pin 5 of the buck chip U12, and a second end of the inductor L2 is connected with a pin 8 of the buck chip U12; the inductor L2 is used for converting the high-frequency periodic signal output by the buck chip U12 into a direct-current signal.

8. The main control system of the balance car according to claim 1, characterized in that: the main control system of the balance car further comprises:

9. The main control system of the balance car according to claim 8, characterized in that: the brake detection module includes: a capacitor C29, a resistor R110, a resistor R109, a triode Q1 and a resistor R108; the bluetooth module is connected to electric capacity C29's first end, the second end ground connection of electric capacity C29, bluetooth module is connected to resistance R110's first end, triode Q1's collecting electrode is connected to resistance R110's second end, power VD is connected to resistance R109's first end, triode Q1's collecting electrode is connected to resistance R109's second end, triode Q1's emitter ground, triode Q1's base is connected to resistance R108's first end, resistance R108's second end is connected the motor drive module.

10. The main control system of the balance car according to claim 1, characterized in that: the main control system of the balance car further comprises:

11. The main control system of the balance car according to claim 1, characterized in that: the attitude detection module comprises a gyroscope and is used for detecting the angular speed and the acceleration of the balance car body.

12. A balance car control system which characterized in that: the balance car master control system comprises the balance car master control system of any one of claims 1 to 11 and is used for controlling one motor of a balance car.

13. The balance car control system according to claim 12, wherein: the balance car control system further includes:

14. The balance car control system according to claim 13, wherein: the vice accuse system includes:

and the power supply module is used for providing a working power supply.

15. The balance car control system according to claim 13, wherein: the vice accuse system still includes:

16. The utility model provides a balance car which characterized in that: comprising a balance car control system according to any of claims 12 to 15.