Electrode gun status cueing device

Abstract

The application discloses an electric gun state prompting device and relates to motor sound prompting technology. The application comprises the following steps: firstly, a binary signal is obtained by triggering a mode switch of the electric gun and inputting an MCU controller; then, a motor driving circuit is powered by a battery module, a battery voltage detection result signal is input into the MCU controller, a voltage stabilizing circuit is powered at the same time, and an output signal of the voltage stabilizing circuit is input into an interface of the MCU controller; finally, a high-frequency signal with different duty cycles is designed by a PWM function of the MCU controller, a field effect tube MOS is driven to make the motor emit different sounds, and thus the electric gun state is determined by different motor prompt sounds. The application can directly determine the electric gun state by the motor sound, does not need to additionally install large-size sound emitting components, and saves equipment space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic air gun, and particularly relates to an electric gun state prompting device. BACKGROUND

[0002] At present, the general electronic air gun cannot increase the large-size sound generating component which is popular on the market due to the space reason, and thus the electronic air gun cannot automatically send a prompt sound to inform the user of the actual state (such as low voltage, abnormality and the like) of the air gun under the low pressure and abnormal state, and can only rely on the experience of the user to estimate the problem. SUMMARY

[0003] The present application relates to the technical field of electronic air gun, and particularly relates to an electric gun state prompting device.

[0004] The purpose of the present application can be achieved by the following technical scheme: an electric gun state prompting device, characterized by comprising a single-shot continuous-shot mode switch circuit, a gun trigger switch circuit, an MCU controller, an isolation circuit, a power supply circuit, a battery voltage detection circuit, an LDO voltage stabilizing circuit, a motor driving circuit and a motor; the power supply circuit is connected with the battery voltage detection circuit, the LDO voltage stabilizing circuit and the motor driving circuit respectively; the power supply circuit supplies power to the MCU controller, the battery voltage detection circuit, the LDO voltage stabilizing circuit, the isolation circuit and the motor driving circuit; the MCU controller is connected with the single-shot continuous-shot mode switch circuit, the gun trigger switch circuit, the battery voltage detection circuit and the LDO voltage stabilizing circuit, and is connected with the isolation circuit; the motor driving circuit is connected with the isolation circuit and the motor.

[0005] Further, the voltage stabilizing circuit comprises a +3.3V voltage stabilizing circuit U5, a diode D5, an inductor BT1, a capacitor C6, a resistor RT2 and a resistor R4; a pin 2 of the voltage stabilizing circuit U5, one end of the capacitor C6 and one end of the inductor BT1 are connected; the other end of the inductor BT1 is connected with the cathode of the diode D5, and is connected with the BAT+ through the anode of the diode D5; the other end of the capacitor C6 is connected with the resistor BT2, and is grounded through the other end of the resistor BT2; a pin 3 of the voltage stabilizing circuit U5 is connected with one end of the resistor R4.

[0006] Further, the single-shot continuous-shot mode switch circuit comprises a switch K3 and a pin 4 of the MCU controller; one end of the switch K3 and the pin 4 of the MCU controller are connected, and the other end of the switch K3 is grounded.

[0007] Further, the gun trigger switch circuit comprises switch K2, capacitor C4, capacitor C5, resistor R5, resistor R4, resistor R3, capacitor C3, capacitor C101, controller U3, MCU controller UI pin 3, MCU controller UI pin 2, MCU controller UI pin 1, MCU controller UI pin 8; one end of switch K2 is connected with one end of capacitor C4 and one end of resistor R5, the other end of capacitor C4 and switch K2 is grounded; MCU controller pin 3, one end of switch K2 and one end of resistor R5 are connected; the other end of resistor R5, one end of resistor R4, one end of resistor R3 and one end of capacitor C3 are connected; the other end of resistor R4, MCU controller UI pin 1 and one end of capacitor C5 are connected; the other end of capacitor C5 and MCU controller UI pin 8 are connected and grounded; the other end of resistor R3, MCU controller UI pin 2 and one end of capacitor C101 are connected; one end of capacitor C101 and controller U3 pin 3 are connected; one end of capacitor C3 and controller pin 1 are connected; controller U3 pin 2, the other end of capacitor C3 and the other end of capacitor C101 are connected and grounded.

[0008] Further, the MCU controller UI model is SN8F570.

[0009] Further, the isolation circuit comprises PNP transistor Q3, NPN transistor Q3A, DTC transistor Q5, resistor R1, resistor R2, resistor R6, resistor R7, resistor R9, resistor R10, resistor R11, resistor R12, MCU controller UI pin 6, MCU controller UI pin 7; the base of transistor Q3A, one end of resistor R2 and one end of resistor R7 are connected, the other end of resistor R2 and the emitter of transistor Q3A are grounded; the other end of resistor R7 and MCU controller UI pin 7 are connected; the collector of transistor Q3A and one end of resistor R1 are connected; the other end of resistor R1 and the base of transistor Q3 are connected; the collector of transistor Q3 and one end of resistor R11 are connected; the other end of resistor R11 and one end of resistor R12 are connected, and grounded through the other end of resistor R12; MCU controller UI pin 6 and one end of resistor R10 are connected; the other end of resistor R10 and the base of transistor Q5 are connected, and the emitter of transistor Q5 is grounded; the collector of transistor Q5 and one end of resistor R6 are connected; one end of resistor R9, the emitter of transistor Q3, the other end of resistor R6 and battery BAT+ are connected.

[0010] Further, the motor driving circuit comprises a motor M1, a PMOS tube Q4, an NMOS tube Q2, a Schottky diode D1, a Schottky diode D2, a Schottky diode D3, a PMOS tube Q4 drain, an NMOS tube Q2 drain, a Schottky diode D3 anode, a Schottky diode D2 anode, a Schottky diode D1 cathode, a motor M1 pin 2, an NMOS tube Q2 source, a Schottky diode D1 anode, a PMOS tube Q4 source, a Schottky diode D3 cathode, a Schottky diode D2 cathode, a motor M1 pin 1, and a battery BAT+.

[0011] Further, the power supply circuit supplies power to the MCU controller UI through a resistor R9, a resistor R8, and a capacitor C100; the other end of the resistor R9, one end of the resistor R8, one end of the capacitor C100, and a MCU controller UI pin 5 are connected; the other end of the resistor R8 and the other end of the capacitor C100 are connected and grounded. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a functional block diagram of the application.

[0013] Figure 2 It is a circuit schematic diagram of the application. DETAILED DESCRIPTION

[0014] As shown in the figure, an electric gun state prompting device is characterized in that it comprises the following steps: S1, MCU controller input signal acquisition; S2, electric gun working voltage acquisition and battery voltage detection; S3, different duty cycle signal driving motor to emit different prompt sounds. Figure 1 The MCU controller input signal acquisition step comprises obtaining a binary signal input MCU controller by triggering the mode switch of the electric gun.

[0015] The electric gun working voltage acquisition and battery voltage detection step comprises supplying power to the motor driving circuit by the battery module, then inputting the battery voltage detection result signal to the MCU controller, simultaneously supplying power to the voltage stabilizing circuit, and inputting the voltage stabilizing circuit output signal to the MCU controller interface.

[0016] The different duty cycle signal driving motor to emit different prompt sounds step comprises that the MCU controller output signal realizes the simultaneous transmission of motor driving and prompt sound through the isolation circuit, and then realizes the motor emitting different sound prompts of the electric gun state.

[0017] Further, as shown in the figure, the electric gun switch is triggered, that is, the "single shot burst mode switch" (K3) and the "gun trigger switch" (K4).

[0018] Figure Two Further, as shown in the figure, the electric gun switch is triggered, that is, the "single shot burst mode switch" (K3) and the "gun trigger switch" (K4). Figure Two Figure Two ​​K2) MCU controller input signal is obtained, when the "single shot mode switch" and "gun trigger switch" is pressed input 0.

[0019] Further, when the battery-powered module is powered on, the battery voltage state is detected by the battery voltage detection module in the MCU controller, and when it is within the normal range, the state of the "single shot mode switch" is detected in turn to determine the working mode of the electric gun, and then the state of the "gun trigger switch" is detected. When a 0 value is detected, the electric gun performs a single shot mode action or a continuous shot mode action.

[0020] Further, the isolation circuit is composed of PNP transistor (Q3), NPN transistor (Q3A), DTC transistor (Q5) and resistor, MCU controller pin 7 output signal is input to the base of NPN transistor through resistor R7, the emitter of PNP transistor is connected to the positive electrode of the battery (BAT+), and the MCU controller pin 6 output signal (i.e. motor drive signal) is driven field effect MOS tube through DTC transistor, thereby making the motor sound; Figure Two Figure Two Figure Two Figure Two This isolation circuit converts the high and low levels of the MCU controller output into the high and low levels of the battery voltage in real time. The supply voltage of this MCU controller is 3.3V, so the high and low levels of its output can only be 0V-3.3V.

[0021] Further, the motor drive circuit is a high-power MOS switch tube (Q2 and Q4) that connects the negative electrode of the motor to the ground or disconnects the negative electrode of the motor to the ground according to the instructions of the MCU controller.

[0022] Further, the field effect tube MOS is controlled by the MCU controller to apply a short low duty cycle high frequency signal to the field effect tube MOS, changing the energizing voltage and energizing time of the motor coil. Due to the input of a short low duty cycle, the motor gets a short energizing time and cannot rotate normally, only a short energizing, so that the motor vibrates following the input frequency, and then makes a sound. Figure Two

[0023] Further, the electric gun integrated circuit motor can emit two distinct prompt sounds, the first "beep" sound is a high frequency signal with a frequency of 1KHZ 6% duty cycle and a signal length of 200ms, which drives the field effect tube MOS to make the motor sound, and the second "drop" sound is a high frequency signal with a frequency of 1.3KHZ 3% duty cycle and a signal length of 200ms, which drives the field effect tube MOS to make the motor sound. These two sounds can meet the customer's warning requirements for the gun.

[0024]

[0025] ​​​​​Further, the gun motor sound prompting function can alert low voltage abnormal state, voltage too high abnormal and single shot timeout abnormal state.

Claims

1. An electric gun state prompting device, characterized by The single-shot continuous mode switch circuit, the gun trigger switch circuit, the MCU controller, the isolation circuit, the power supply circuit, the battery voltage detection circuit, the LDO voltage stabilizing circuit, the motor driving circuit and the motor are connected.

2. The electric gun state prompting device according to claim 1, characterized in that: The voltage stabilizing circuit comprises a +3.3V voltage stabilizing circuit U5, a diode D5, an inductor BT1, a capacitor C6, a resistor RT2 and a resistor R4.

3. The electric gun state prompting device according to claim 1, characterized in that: The single-shot continuous mode switch circuit comprises a switch K3 and a pin 4 of the MCU controller.

4. The electric gun state prompting device according to claim 1, characterized in that: The gun trigger switch circuit comprises a switch K2, a capacitor C4, a capacitor C5, a resistor R5, a resistor R4, a resistor R3, a capacitor C3, a capacitor C101, a controller U3, a pin 3 of the MCU controller, a pin 2 of the MCU controller, a pin 1 of the MCU controller and a pin 8 of the MCU controller.

5. The electric gun status prompting device according to claim 1, characterized in that: The MCU controller is of the SN8F570 type.

6. The electric gun status prompting device according to claim 1, characterized in that: The isolation circuit comprises a PNP type transistor Q3, an NPN type transistor Q3A, a DTC transistor Q5, a resistor R1, a resistor R2, a resistor R6, a resistor R7, a resistor R9, a resistor R10, a resistor R11, a resistor R12, an MCU controller UI pin 6, an MCU controller UI pin 7; the base of the transistor Q3A, one end of the resistor R2 and one end of the resistor R7 are connected, the other end of the resistor R2 and the emitter of the transistor Q3A are grounded; the other end of the resistor R7 and the MCU controller UI pin 7 are connected; the collector of the transistor Q3A and one end of the resistor R1 are connected; the other end of the resistor R1 and the base of the transistor Q3 are connected; the collector of the transistor Q3 and one end of the resistor R11 are connected; the other end of the resistor R11 and one end of the resistor R12 are connected, and the other end of the resistor R12 is grounded; the MCU controller UI pin 6 and one end of the resistor R10 are connected; the other end of the resistor R10, the base of the transistor Q5 and the emitter of the transistor Q5 are connected, and the emitter of the transistor Q5 is grounded; the collector of the transistor Q5 and one end of the resistor R6 are connected; one end of the resistor R9, the emitter of the transistor Q3, the other end of the resistor R6 and the battery BAT+ are connected.

7. The electric gun status prompting device according to claim 1, characterized in that: The motor driving circuit comprises a motor M1, a PMOS tube Q4, an NMOS tube Q2, a Schottky diode D1, a Schottky diode D2 and a Schottky diode D3; the drain of the PMOS tube Q4, the drain of the NMOS tube Q2, the anode of the Schottky diode D3, the anode of the Schottky diode D2, the cathode of the Schottky diode D1 and the pin 2 of the motor M1 are connected; the source of the NMOS tube Q2 and the anode of the Schottky diode D1 are grounded; the source of the PMOS tube Q4, the cathode of the Schottky diode D3, the cathode of the Schottky diode D2, the pin 1 of the motor M1 and the battery BAT+ are connected.

8. The electric gun status prompting device according to claim 1, characterized in that: The power supply circuit supplies power to the MCU controller UI through the resistor R9, the resistor R8 and the capacitor C100; the other end of the resistor R9, one end of the resistor R8, one end of the capacitor C100 and the MCU controller UI pin 5 are connected; the other end of the resistor R8 and the other end of the capacitor C100 are connected and grounded.

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