CN216216526U

CN216216526U - Display box circuit of sensor module

Info

Publication number: CN216216526U
Application number: CN202122395620.8U
Authority: CN
Inventors: 江冠华; 袁礼刚
Original assignee: Jiangsu Jwt Electronics Shares Co ltd
Current assignee: Jiangsu Jwt Electronics Shares Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The application provides a display case circuit of sensor module, includes: the system comprises a power supply interface circuit, an anti-reverse connection circuit, a voltage reduction circuit, an MCU circuit, an inertial navigation circuit, a stepping motor driving circuit, a knocking circuit, a pressure sensing circuit and a 2.4G wireless circuit, wherein the power supply interface circuit is connected with the anti-reverse connection circuit, and the anti-reverse connection circuit is connected with the voltage reduction circuit; the inertial navigation circuit, the knocking circuit, the pressure sensing circuit and the 2.4G wireless circuit are respectively connected with the MCU circuit, the inertial navigation circuit, the knocking circuit and the pressure sensing circuit respectively perform bidirectional transmission of data signals with the MCU chip, and the MCU chip is also used for respectively controlling the inertial navigation switch and the indicator lamp, the knocking switch and the indicator lamp and the pressure sensing switch and the indicator lamp to be turned on and off; the output end of the MCU chip is connected with a driving circuit of the stepping motor, and the MCU chip is used for sending a pulse signal to the stepping driver when the inertial navigation switch is turned on, so that the stepping motor is driven to convert the pulse signal into angular displacement.

Description

Display box circuit of sensor module

Technical Field

The utility model relates to the field of electricity, in particular to a display box circuit of a sensor module.

Background

With the overall development of the economic society and the gradual improvement of the living standard of people, household appliances, intelligent products and the like gradually go deep into the aspects of the life of people, such as: a sweeping robot, an express robot, a catering robot, a refrigerator, an earphone and the like. These appliances, smart appliances and smart products generally have a plurality of sensor modules, for example, one or more of a gyroscope module for detecting an inertial navigation characteristic value of the appliance, a tapping module for detecting a tapping characteristic value of the appliance, a pressure-sensitive module for detecting a pressure-sensitive characteristic value of the appliance, and a 2.4G wireless module. The applicant designs modules such as a gyroscope module, a knocking module, a pressure sensing module and a 2.4G wireless module for production and sale, designs a special display box for displaying in order to publicize or more intuitively display the performance of the sensor modules, and designs a special display box circuit for supporting and displaying characteristic values such as inertial navigation, knocking and pressure sensing of related modules.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a display box circuit of a sensor module, which is used for displaying inertial navigation, knocking and pressure characteristic values of the corresponding sensor module.

A display case circuit of a sensor module, comprising: the power supply circuit comprises a power supply interface circuit, an anti-reverse connection circuit, a voltage reduction circuit, an MCU circuit, an inertial navigation circuit, a stepping motor driving circuit, a knocking circuit, a pressure sensing circuit and a 2.4G wireless circuit, wherein the power supply interface circuit is connected with the anti-reverse connection circuit, the output end of the anti-reverse connection circuit is connected with the input end of the voltage reduction circuit, and the voltage reduction circuit is used for reducing 5V direct current into 3.3V direct current; the inertial navigation circuit, the knocking circuit, the pressure sensing circuit and the 2.4G wireless circuit are respectively connected with the MCU circuit, the 2.4G wireless circuit and an MCU chip of the MCU circuit carry out bidirectional signal transmission, the MCU chip is also used for controlling the on and off of a 2.4G switch and an indicator light of the 2.4G wireless circuit, and the 2.4G switch can be wirelessly controlled by a remote controller to switch the working modes of the MCU chip when being turned on; the inertial navigation circuit, the knocking circuit and the pressure sensing circuit respectively perform bidirectional transmission of data signals with the MCU chip, and the MCU chip is further used for respectively controlling the inertial navigation switch and the indicator lamp of the inertial navigation circuit, the knocking switch and the indicator lamp of the knocking circuit and the pressure sensing switch and the indicator lamp of the pressure sensing circuit to be turned on and turned off; the output end of the MCU chip is connected with the stepping motor driving circuit, the MCU chip is used for sending a pulse signal to a stepping driver of the stepping motor driving circuit when the inertial navigation switch is switched on, and the stepping driver is used for driving the stepping motor to convert the pulse signal into angular displacement.

In some embodiments, the power interface circuit comprises: interface J1, interface CN3, diode D1, diode D2 and switch K1, 1 pin of interface J1 is connected with 1 pin of interface CN3, interface J1 is used for connecting a 6V battery power supply, interface CN3 is used for connecting a 6V external power supply, interface CN3 is disconnected with interface J1 when being connected with the power supply, diode D1 and diode D2 are connected with 2 pins of interface J1, diode D1 is connected with diode D2 in series, diode D1 and diode D2 play the roles of voltage reduction and battery reverse connection prevention, diode D2 is connected with 2 pins of switch K1, switch K1 is used for controlling the on or off of the power supply, and 1 pin of switch K1 is connected with reverse connection prevention circuit.

In some embodiments, the output end of the reverse connection prevention circuit is further connected with an interface H1, a knocking switch circuit of the knocking circuit, a stepping motor driving circuit and a display screen interface circuit.

Furthermore, the anti-reverse connection circuit comprises a P-type MOS tube Q1 and a resistor R5, wherein one end of the resistor R5 is connected with the grid electrode of the P-type MOS tube Q1, the other end of the resistor R5 is grounded, a pin 1 of the switch K1 is connected with the drain electrode of the P-type MOS tube Q1, and 5V direct current is output by the source electrode of the P-type MOS tube Q1.

In some embodiments, the output end of the voltage reduction circuit is connected to the interface H2, the inertial navigation switch circuit of the inertial navigation circuit, the pressure-sensitive switch circuit of the pressure-sensitive circuit, the 2.4G switch circuit of the 2.4G wireless circuit, the function switching circuit, the reset circuit, and the burning interface.

Further, the voltage-reducing circuit includes: the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the voltage reduction chip U1, the capacitor C5, the capacitor C6 and the capacitor C7, wherein the voltage reduction chip U1 is used for reducing 5V direct current into 3.3V direct current, the capacitor C1, the capacitor C2, the capacitor C3 and the capacitor C4 are connected with an input end of the voltage reduction chip U1 after being connected in parallel, the capacitor C1, the capacitor C2, the capacitor C3 and the capacitor C4 play a role in filtering, the capacitor C5, the capacitor C6 and the capacitor C7 are connected with an output end of the voltage reduction chip U1 in parallel, and the capacitor C5, the capacitor C6 and the capacitor C7 play a role in filtering.

In some embodiments, the inertial navigation circuit includes an inertial navigation interface circuit, an inertial navigation switch circuit, and an inertial navigation indicator light circuit, the inertial navigation interface circuit is bidirectionally connected to the MCU chip U2, an output terminal of the MCU chip U2 is connected to an input terminal of the inertial navigation switch circuit, and an output terminal of the inertial navigation switch circuit is connected to the inertial navigation interface circuit and the inertial navigation indicator light circuit.

Further, the inertial navigation interface circuit is connected with the 16 pins and the 17 pins of the MCU chip U2, and the inertial navigation interface circuit includes: the circuit comprises a connector H9, a resistor R19 and a resistor 20, wherein a pin 3 of the connector H9 is connected with the resistor R19 and then connected with a pin 16 of an MCU chip U2, and a pin 2 of the connector H9 is connected with a resistor R20 and then connected with a pin 17 of the MCU chip U2; MCU chip U2's 15 feet and be used to lead switch circuit and be connected, be used to lead switch circuit and include: the resistance R1 and the P-type MOS tube Q2, the resistance R1 is connected with the grid and the source of the P-type MOS tube Q2, the pin 15 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 1 of the interface H9 of the inertial navigation interface circuit and the inertial navigation indicator lamp circuit; the inertial navigation indicator lamp circuit comprises a resistor R15 and a display lamp LED4, wherein the resistor R15 is connected with the display lamp LED4 in series, one end of the display lamp LED4 is connected with the resistor R15, the other end of the display lamp LED4 is grounded, and the resistor R15 plays a role in limiting current.

In some embodiments, the stepping motor driving circuit includes a stepping driver Q6, an interface H3, and a capacitor C10, wherein pins 1 to 4 of the stepping driver Q6 are respectively connected to

pins

62, 61, 59, and 58 of the MCU chip U2,

pins

8 and 9 of the stepping driver Q6 are respectively connected to one end of the capacitor C10, and pins 13 to 16 of the stepping driver Q6 are connected to the interface H3.

In some embodiments, the knocking circuit comprises a knocking interface circuit, a knocking switch circuit and a knocking indicator light circuit, the knocking interface circuit is bidirectionally connected with the MCU chip U2, the output end of the MCU chip U2 is connected with the input end of the knocking switch circuit, and the output end of the knocking switch circuit is connected with the knocking interface circuit and the knocking indicator light circuit.

Further, the knocking interface circuit is connected with the 26 pins of the MCU chip U2, and the knocking interface circuit includes: the MCU chip comprises an interface CN1, a resistor R7 and a resistor R8, wherein a pin 1 of the interface CN1 is connected with a resistor R7 and a resistor R8, a resistor R7 is connected with a resistor R8 in series, and one end of the resistor R8 is connected with a pin 26 of the MCU chip U2; MCU chip U2's 27 feet and strike switch circuit connection, strike the switch circuit and include: the circuit comprises a resistor R2 and a P-type MOS tube Q3, wherein the resistor R2 is connected with the grid and the source of the P-type MOS tube Q3, the pin 27 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 3 of an interface CN1 of a knocking interface circuit and a knocking indicator lamp circuit; the knocking indicating lamp circuit comprises a resistor R6 and a display lamp LED1, the resistor R6 is connected with the display lamp LED1 in series, one end of the display lamp LED1 is connected with the resistor R6, the other end of the display lamp LED1 is grounded, and the resistor R6 plays a role in limiting current.

In some embodiments, the pressure-sensitive circuit includes a pressure-sensitive interface circuit, a pressure-sensitive switch circuit and a pressure-sensitive indicator light circuit, the pressure-sensitive interface circuit is bidirectionally connected to the MCU chip U2, an output terminal of the MCU chip U2 is connected to an input terminal of the pressure-sensitive switch circuit, and an output terminal of the pressure-sensitive switch circuit is connected to the pressure-sensitive interface circuit and the pressure-sensitive indicator light circuit.

Further, the pressure-sensitive interface circuit is connected with

pins

28, 29 and 30 of the MCU chip U2, and includes: the interface comprises an interface CN4, a resistor R10 and a resistor 11, wherein a pin 1 of the interface CN4 is connected with a pin 29 of the resistor R10 and an MCU chip U2, a pin 2 of the interface CN4 is connected with a pin 30 of the resistor R11 and an MCU chip U2, and a pin 3 of the interface CN4 is connected with a pin 28 of the MCU chip U2; MCU chip U2's 19 feet and pressure switch circuit are connected, and pressure switch circuit includes: the resistor R3 and the P-type MOS tube Q4, the resistor R3 is connected with the grid and the source of the P-type MOS tube Q4, the pin 19 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 5 of the interface CN4 of the pressure-sensitive interface circuit and the pressure-sensitive indicator lamp circuit; the pressure-sensitive indicating lamp circuit comprises a resistor R12 and a display lamp LED3, wherein the resistor R12 is connected with the display lamp LED3 in series, one end of the display lamp LED3 is connected with the resistor R12, the other end of the display lamp LED3 is grounded, and the resistor R12 plays a role in limiting current.

In some embodiments, the 2.4G wireless circuit includes a 2.4G interface circuit, a 2.4G switch circuit and a 2.4G indicator light circuit, the 2.4G interface circuit is bidirectionally connected to the MCU chip U2, the 2.4G interface circuit is further connected to the wireless transceiver, the output of the MCU chip U2 is connected to the input of the 2.4G switch circuit, the MCU can be wirelessly controlled by the remote controller when the 2.4G switch circuit is turned on, and the output of the 2.4G switch circuit is connected to the 2.4G interface circuit and the 2.4G indicator light circuit.

Furthermore, the 2.4G interface circuit is connected with pins 33 to 39 of the MCU chip U2, the 2.4G interface circuit includes an interface H4, pins 3 to 9 of the interface H4 are connected with pins 33 to 39 of the MCU chip U2; MCU chip U2's 40 feet and 2.4G switching circuit are connected, and 2.4G switching circuit includes: the resistor R4 and the P-type MOS tube Q5, the resistor R4 is connected with the grid and the source of the P-type MOS tube Q5, the pin 40 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 2 of the interface H4 of the 2.4G interface circuit and the 2.4G indicator lamp circuit; the 2.4G indicating lamp circuit comprises a resistor R9 and a display lamp LED2, wherein the resistor R9 is connected with the display lamp LED2 in series, one end of the display lamp LED2 is connected with the resistor R9, the other end of the display lamp LED2 is grounded, and the resistor R9 plays a role in limiting current.

In some embodiments, the display box circuit of the sensor module further includes a display screen interface circuit, the display screen interface circuit is used for switching and displaying the inertial navigation, the knocking or the pressure characteristic value by the display screen, and the display screen interface circuit includes: interface CN5, resistance R17, resistance R18 and electric capacity C20, 4 feet and resistance R17 of interface CN5 are connected and are connected with MCU chip U2's 42 feet, 5 feet and resistance R18 of interface CN5 are connected and are connected with MCU chip U2's 43 feet, 5 feet and electric capacity C20 of interface CN5 are connected and are earthed again.

In some embodiments, the display case circuitry of the sensor module further comprises: the clock hand signal circuit, the function switching circuit, the reset circuit and the burning interface are connected with the input end of the MCU chip U2, and the burning interface is bidirectionally connected with the MCU chip U2.

Furthermore, the hour hand signal circuit comprises a first hour hand signal circuit and a second hour hand signal circuit, the first hour hand signal circuit comprises a capacitor C11, a capacitor C12 and a crystal oscillator Y1, the capacitor C11 and the capacitor C12 are respectively connected with two ends of the crystal oscillator Y1, and two ends of the crystal oscillator Y1 are respectively connected with a pin 3 and a pin 4 of the MCU chip U2; the second hour hand signal circuit comprises a capacitor C15, a capacitor C16 and a crystal oscillator Y2, wherein the capacitor C15 and the capacitor C16 are respectively connected with two ends of the crystal oscillator Y2, and two ends of the crystal oscillator Y2 are respectively connected with a pin 5 and a pin 6 of the MCU chip U2.

Further, the function switching circuit is connected to pin 18 of the MCU chip U2, and the function switching circuit includes: the switch STEUP is connected with the capacitor C17 in parallel and then connected with the resistor R13 in parallel, the switch STEUP is a manual press switch, and the press switch STEUP outputs low level to the 18 feet of the MCU chip U4 to trigger the function switching of the MCU chip U2. The switching function mode corresponding to the push switch STEUP is determined by setting an internal program of the MCU chip U2.

Further, the reset circuit is connected with 7 feet of the MCU chip U2, and the reset circuit comprises: the switch RST is connected with the capacitor C18 in parallel and then connected with the resistor R14 in parallel, the switch RST is a manual push switch, and the push switch RST outputs a low level to a pin 7 of the MCU chip U2, so that the reset effect on the MCU chip U2 is achieved.

Furthermore, the burning interface is used for burning or/and reading a control program in the MCU chip U2, and pins 1 to 4 of the burning interface P1 are respectively connected with

pins

60, 7, 49 and 46 of the MCU chip U2.

Drawings

Fig. 1 is a circuit diagram of a power supply interface circuit and an anti-reverse circuit of a display case circuit of a sensor module of the present application.

Fig. 2 is a circuit diagram of the voltage step-down circuit, interface H1, and interface H2 of the display case circuit of the sensor module of the present application.

FIG. 3 is a circuit diagram of an inertial navigation circuit of a display case circuit of the sensor module of the present application.

Fig. 4 is a circuit diagram of a strike circuit of the display case circuit of the sensor module of the present application.

Fig. 5 is a circuit diagram of a pressure sensing circuit of a display case circuit of the sensor module of the present application.

Fig. 6 is a circuit diagram of a 2.4G wireless circuit of the display case circuit of the sensor module of the present application.

Fig. 7 is a circuit diagram of a stepper motor drive circuit and a display screen interface circuit of a display case circuit of a sensor module of the present application.

Fig. 8 is a circuit diagram of an MCU circuit of a display case circuit of the sensor module of the present application.

Fig. 9 is a circuit diagram of an hour hand signal circuit, a function switching circuit, a reset circuit, and a burning interface of a display box circuit of the sensor module of the present application.

The drawings are described in detail below with reference to specific embodiments.

Detailed Description

The following examples are described to aid in the understanding of the present application and are not, and should not be construed to, limit the scope of the present application in any way.

In the following description, those skilled in the art will recognize that components may be described throughout this discussion as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including being integrated within a single system or component).

Also, connections between components or systems are not intended to be limited to direct connections, but rather, data between these components may be modified, reformatted, or otherwise changed by intervening components. Additionally, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

Example 1:

a display case circuit for a sensor module, as shown in fig. 1-9, comprising: the power supply circuit comprises a power supply interface circuit, an anti-reverse connection circuit, a voltage reduction circuit, an MCU circuit, an inertial navigation circuit, a stepping motor driving circuit, a knocking circuit, a pressure sensing circuit and a 2.4G wireless circuit, wherein the power supply interface circuit is connected with the anti-reverse connection circuit, the output end of the anti-reverse connection circuit is connected with the input end of the voltage reduction circuit, and the voltage reduction circuit is used for reducing 5V direct current into 3.3V direct current; the inertial navigation circuit, the knocking circuit, the pressure sensing circuit and the 2.4G wireless circuit are respectively connected with the MCU circuit, the 2.4G wireless circuit and an MCU chip of the MCU circuit carry out bidirectional signal transmission, the MCU chip is also used for controlling the on and off of a 2.4G switch and an indicator light of the 2.4G wireless circuit, and the 2.4G switch can be wirelessly controlled by a remote controller to switch the working modes of the MCU chip when being turned on; the inertial navigation circuit, the knocking circuit and the pressure sensing circuit respectively perform bidirectional transmission of data signals with the MCU chip, and the MCU chip is further used for respectively controlling the inertial navigation switch and the indicator lamp of the inertial navigation circuit, the knocking switch and the indicator lamp of the knocking circuit and the pressure sensing switch and the indicator lamp of the pressure sensing circuit to be turned on and turned off; the output end of the MCU chip is connected with the stepping motor driving circuit, the MCU chip is used for sending a pulse signal to a stepping driver of the stepping motor driving circuit when the inertial navigation switch is switched on, and the stepping driver is used for driving the stepping motor to convert the pulse signal into angular displacement.

The power supply interface circuit includes: interface J1, interface CN3, diode D1, diode D2 and switch K1, 1 pin of interface J1 is connected with 1 pin of interface CN3, interface J1 is used for connecting a 6V battery power supply, interface CN3 is used for connecting a 6V external power supply, interface CN3 is disconnected with interface J1 when being connected with the power supply, diode D1 and diode D2 are connected with 2 pins of interface J1, diode D1 is connected with diode D2 in series, diode D1 and diode D2 play the roles of voltage reduction and battery reverse connection prevention, diode D2 is connected with 2 pins of switch K1, switch K1 is used for controlling the on or off of the power supply, and 1 pin of switch K1 is connected with reverse connection prevention circuit. The output end of the reverse connection preventing circuit is also connected with an interface H1, a knocking switch circuit of a knocking circuit, a stepping motor driving circuit and a display screen interface circuit. The anti-reverse circuit comprises a P-type MOS tube Q1 and a resistor R5, one end of the resistor R5 is connected with the grid electrode of the P-type MOS tube Q1, the other end of the resistor R5 is grounded, a pin 1 of a switch K1 is connected with the drain electrode of the P-type MOS tube Q1, and 5V direct current is output from the source electrode of the P-type MOS tube Q1. The output end of the voltage reduction circuit is connected with the interface H2, the inertial navigation switch circuit of the inertial navigation circuit, the pressure sensing switch circuit of the pressure sensing circuit, the 2.4G switch circuit of the 2.4G wireless circuit, the function switching circuit, the reset circuit and the burning interface. The step-down circuit includes: the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the voltage reduction chip U1, the capacitor C5, the capacitor C6 and the capacitor C7, wherein the voltage reduction chip U1 is used for reducing 5V direct current into 3.3V direct current, the capacitor C1, the capacitor C2, the capacitor C3 and the capacitor C4 are connected with an input end of the voltage reduction chip U1 after being connected in parallel, the capacitor C1, the capacitor C2, the capacitor C3 and the capacitor C4 play a role in filtering, the capacitor C5, the capacitor C6 and the capacitor C7 are connected with an output end of the voltage reduction chip U1 in parallel, and the capacitor C5, the capacitor C6 and the capacitor C7 play a role in filtering.

The inertial navigation circuit comprises an inertial navigation interface circuit, an inertial navigation switch circuit and an inertial navigation indicator lamp circuit, the inertial navigation interface circuit is bidirectionally connected with the MCU chip U2, the output end of the MCU chip U2 is connected with the input end of the inertial navigation switch circuit, and the output end of the inertial navigation switch circuit is connected with the inertial navigation interface circuit and the inertial navigation indicator lamp circuit. The inertial navigation interface circuit is connected with 16 pins and 17 pins of the MCU chip U2, and comprises: the circuit comprises a connector H9, a resistor R19 and a resistor 20, wherein a pin 3 of the connector H9 is connected with the resistor R19 and then connected with a pin 16 of an MCU chip U2, and a pin 2 of the connector H9 is connected with a resistor R20 and then connected with a pin 17 of the MCU chip U2; MCU chip U2's 15 feet and be used to lead switch circuit and be connected, be used to lead switch circuit and include: the resistance R1 and the P-type MOS tube Q2, the resistance R1 is connected with the grid and the source of the P-type MOS tube Q2, the pin 15 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 1 of the interface H9 of the inertial navigation interface circuit and the inertial navigation indicator lamp circuit; the inertial navigation indicator lamp circuit comprises a resistor R15 and a display lamp LED4, wherein the resistor R15 is connected with the display lamp LED4 in series, one end of the display lamp LED4 is connected with the resistor R15, the other end of the display lamp LED4 is grounded, and the resistor R15 plays a role in limiting current. The stepping motor driving circuit comprises a stepping driver Q6, an interface H3 and a capacitor C10, pins 1 to 4 of the stepping driver Q6 are respectively connected with

pins

62, 61, 59 and 58 of an MCU chip U2,

pins

8 and 9 of the stepping driver Q6 are respectively connected with one end of the capacitor C10, and pins 13 to 16 of the stepping driver Q6 are connected with the interface H3.

The knocking circuit comprises a knocking interface circuit, a knocking switch circuit and a knocking indicator lamp circuit, the knocking interface circuit is in two-way connection with the MCU chip U2, the output end of the MCU chip U2 is connected with the input end of the knocking switch circuit, and the output end of the knocking switch circuit is connected with the knocking interface circuit and the knocking indicator lamp circuit. The knocking interface circuit is connected with a 26 pin of the MCU chip U2 and comprises: the MCU chip comprises an interface CN1, a resistor R7 and a resistor R8, wherein a pin 1 of the interface CN1 is connected with a resistor R7 and a resistor R8, a resistor R7 is connected with a resistor R8 in series, and one end of the resistor R8 is connected with a pin 26 of the MCU chip U2; MCU chip U2's 27 feet and strike switch circuit connection, strike the switch circuit and include: the circuit comprises a resistor R2 and a P-type MOS tube Q3, wherein the resistor R2 is connected with the grid and the source of the P-type MOS tube Q3, the pin 27 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 3 of an interface CN1 of a knocking interface circuit and a knocking indicator lamp circuit; the knocking indicating lamp circuit comprises a resistor R6 and a display lamp LED1, the resistor R6 is connected with the display lamp LED1 in series, one end of the display lamp LED1 is connected with the resistor R6, the other end of the display lamp LED1 is grounded, and the resistor R6 plays a role in limiting current.

The pressure sensing circuit comprises a pressure sensing interface circuit, a pressure sensing switch circuit and a pressure sensing indicating lamp circuit, the pressure sensing interface circuit is in two-way connection with the MCU chip U2, the output end of the MCU chip U2 is connected with the input end of the pressure sensing switch circuit, and the output end of the pressure sensing switch circuit is connected with the pressure sensing interface circuit and the pressure sensing indicating lamp circuit. The pressure-sensitive interface circuit is connected with

pins

28, 29 and 30 of the MCU chip U2, and comprises: the interface comprises an interface CN4, a resistor R10 and a resistor 11, wherein a pin 1 of the interface CN4 is connected with a pin 29 of the resistor R10 and an MCU chip U2, a pin 2 of the interface CN4 is connected with a pin 30 of the resistor R11 and an MCU chip U2, and a pin 3 of the interface CN4 is connected with a pin 28 of the MCU chip U2; MCU chip U2's 19 feet and pressure switch circuit are connected, and pressure switch circuit includes: the resistor R3 and the P-type MOS tube Q4, the resistor R3 is connected with the grid and the source of the P-type MOS tube Q4, the pin 19 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 5 of the interface CN4 of the pressure-sensitive interface circuit and the pressure-sensitive indicator lamp circuit; the pressure-sensitive indicating lamp circuit comprises a resistor R12 and a display lamp LED3, wherein the resistor R12 is connected with the display lamp LED3 in series, one end of the display lamp LED3 is connected with the resistor R12, the other end of the display lamp LED3 is grounded, and the resistor R12 plays a role in limiting current.

2.4G wireless circuit includes 2.4G interface circuit, 2.4G switch circuit and 2.4G pilot lamp circuit, 2.4G interface circuit and MCU chip U2 both way junction, 2.4G interface circuit still is connected with wireless transceiver, MCU chip U2's output is connected with 2.4G switch circuit's input, 2.4G switch circuit switches on then can be with remote controller wireless control MCU, 2.4G switch circuit's output and 2.4G interface circuit and 2.4G pilot lamp circuit connection. The 2.4G interface circuit is connected with pins 33 to 39 of the MCU chip U2, the 2.4G interface circuit comprises an interface H4, and pins 3 to 9 of the interface H4 are connected with pins 33 to 39 of the MCU chip U2; MCU chip U2's 40 feet and 2.4G switching circuit are connected, and 2.4G switching circuit includes: the resistor R4 and the P-type MOS tube Q5, the resistor R4 is connected with the grid and the source of the P-type MOS tube Q5, the pin 40 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 2 of the interface H4 of the 2.4G interface circuit and the 2.4G indicator lamp circuit; the 2.4G indicating lamp circuit comprises a resistor R9 and a display lamp LED2, wherein the resistor R9 is connected with the display lamp LED2 in series, one end of the display lamp LED2 is connected with the resistor R9, the other end of the display lamp LED2 is grounded, and the resistor R9 plays a role in limiting current.

The display box circuit of sensor module still includes display screen interface circuit, and display screen interface circuit is used for supplying the display screen to switch to show and is used to lead, strike or the pressure sense eigenvalue, and display screen interface circuit includes: interface CN5, resistance R17, resistance R18 and electric capacity C20, 4 feet and resistance R17 of interface CN5 are connected and are connected with MCU chip U2's 42 feet, 5 feet and resistance R18 of interface CN5 are connected and are connected with MCU chip U2's 43 feet, 5 feet and electric capacity C20 of interface CN5 are connected and are earthed again. The display case circuit of the sensor module further comprises: the clock hand signal circuit, the function switching circuit, the reset circuit and the burning interface are connected with the input end of the MCU chip U2, and the burning interface is bidirectionally connected with the MCU chip U2. The hour hand signal circuit comprises a first hour hand signal circuit and a second hour hand signal circuit, the first hour hand signal circuit comprises a capacitor C11, a capacitor C12 and a crystal oscillator Y1, the capacitor C11 and the capacitor C12 are respectively connected with two ends of a crystal oscillator Y1, and two ends of a crystal oscillator Y1 are respectively connected with a pin 3 and a pin 4 of the MCU chip U2; the second hour hand signal circuit comprises a capacitor C15, a capacitor C16 and a crystal oscillator Y2, wherein the capacitor C15 and the capacitor C16 are respectively connected with two ends of the crystal oscillator Y2, and two ends of the crystal oscillator Y2 are respectively connected with a pin 5 and a pin 6 of the MCU chip U2. The function switching circuit is connected with 18 feet of the MCU chip U2, and the function switching circuit comprises: the switch STEUP is connected with the capacitor C17 in parallel and then connected with the resistor R13 in parallel, the switch STEUP is a manual press switch, and the press switch STEUP outputs low level to the 18 feet of the MCU chip U4 to trigger the function switching of the MCU chip U2. The switching function mode corresponding to the push switch STEUP is determined by setting an internal program of the MCU chip U2. Reset circuit is connected with MCU chip U2's 7 feet, and reset circuit includes: the switch RST is connected with the capacitor C18 in parallel and then connected with the resistor R14 in parallel, the switch RST is a manual push switch, and the push switch RST outputs a low level to a pin 7 of the MCU chip U2, so that the reset effect on the MCU chip U2 is achieved.

pins

60, 7, 49 and 46 of the MCU chip U2.

While various aspects and embodiments have been disclosed herein, it will be apparent to those skilled in the art that other aspects and embodiments can be made without departing from the spirit of the disclosure, and that several modifications and improvements can be made without departing from the spirit of the disclosure. The various aspects and embodiments disclosed herein are presented by way of example only and are not intended to limit the present disclosure, which is to be controlled in the spirit and scope of the appended claims.

Claims

1. A display case circuit of a sensor module, comprising: the power supply circuit comprises a power supply interface circuit, an anti-reverse connection circuit, a voltage reduction circuit, an MCU circuit, an inertial navigation circuit, a stepping motor driving circuit, a knocking circuit, a pressure sensing circuit and a 2.4G wireless circuit, wherein the power supply interface circuit is connected with the anti-reverse connection circuit, the output end of the anti-reverse connection circuit is connected with the input end of the voltage reduction circuit, and the voltage reduction circuit is used for reducing 5V direct current into 3.3V direct current; the inertial navigation circuit, the knocking circuit, the pressure sensing circuit and the 2.4G wireless circuit are respectively connected with the MCU circuit, the 2.4G wireless circuit and an MCU chip of the MCU circuit carry out bidirectional signal transmission, and the MCU chip is also used for controlling the 2.4G switch of the 2.4G wireless circuit and the on and off of the indicator light; the inertial navigation circuit, the knocking circuit and the pressure sensing circuit respectively perform bidirectional transmission of data signals with the MCU chip, and the MCU chip is further used for respectively controlling the inertial navigation switch and the indicator lamp of the inertial navigation circuit, the knocking switch and the indicator lamp of the knocking circuit and the pressure sensing switch and the indicator lamp of the pressure sensing circuit to be turned on and turned off; the output end of the MCU chip is connected with the stepping motor driving circuit, the MCU chip is used for sending a pulse signal to a stepping driver of the stepping motor driving circuit when the inertial navigation switch is switched on, and the stepping driver is used for driving the stepping motor to convert the pulse signal into angular displacement.

2. The sensor module display case circuit of claim 1, wherein the power interface circuit comprises: interface J1, interface CN3, diode D1, diode D2 and switch K1, 1 pin of interface J1 is connected with 1 pin of interface CN3, interface J1 is used for connecting a 6V battery power supply, interface CN3 is used for connecting a 6V external power supply, interface CN3 is disconnected with interface J1 when being connected with the power supply, diode D1 and diode D2 are connected with 2 pins of interface J1, diode D1 is connected with diode D2 in series, diode D1 and diode D2 play the roles of voltage reduction and battery reverse connection prevention, diode D2 is connected with 2 pins of switch K1, switch K1 is used for controlling the on or off of the power supply, and 1 pin of switch K1 is connected with reverse connection prevention circuit.

3. The display box circuit of the sensor module as claimed in claim 1, wherein the output terminal of the anti-reverse circuit is further connected with the interface H1, the tapping switch circuit of the tapping circuit, the stepping motor driving circuit and the display screen interface circuit.

4. The display box circuit of the sensor module as claimed in claim 3, wherein the anti-reverse circuit comprises a P-type MOS transistor Q1 and a resistor R5, one end of the resistor R5 is connected with the gate of the P-type MOS transistor Q1, the other end is grounded, the pin 1 of the switch K1 is connected with the drain of the P-type MOS transistor Q1, and the source of the P-type MOS transistor Q1 outputs 5V direct current.

5. The display box circuit of the sensor module of claim 1, wherein the output terminal of the voltage-reducing circuit is connected to the interface H2, the inertial navigation switch circuit of the inertial navigation circuit, the pressure-sensitive switch circuit of the pressure-sensitive circuit, the 2.4G switch circuit of the 2.4G wireless circuit, the function switching circuit, the reset circuit, and the burn interface.

6. The display case circuit of sensor module of claim 5, wherein the voltage reduction circuit comprises: the capacitor C1, the capacitor C2, the capacitor C3, the capacitor C4, the voltage reduction chip U1, the capacitor C5, the capacitor C6 and the capacitor C7, wherein the voltage reduction chip U1 is used for reducing 5V direct current into 3.3V direct current, the capacitor C1, the capacitor C2, the capacitor C3 and the capacitor C4 are connected with an input end of the voltage reduction chip U1 after being connected in parallel, the capacitor C1, the capacitor C2, the capacitor C3 and the capacitor C4 play a role in filtering, the capacitor C5, the capacitor C6 and the capacitor C7 are connected with an output end of the voltage reduction chip U1 in parallel, and the capacitor C5, the capacitor C6 and the capacitor C7 play a role in filtering.

7. The display case circuit of sensor module of claim 1, comprising one or more features selected from the group consisting of:

A. the inertial navigation circuit comprises an inertial navigation interface circuit, an inertial navigation switch circuit and an inertial navigation indicator lamp circuit, the inertial navigation interface circuit is bidirectionally connected with the MCU chip U2, the output end of the MCU chip U2 is connected with the input end of the inertial navigation switch circuit, and the output end of the inertial navigation switch circuit is connected with the inertial navigation interface circuit and the inertial navigation indicator lamp circuit;

B. the knocking circuit comprises a knocking interface circuit, a knocking switch circuit and a knocking indicator lamp circuit, the knocking interface circuit is bidirectionally connected with the MCU chip U2, the output end of the MCU chip U2 is connected with the input end of the knocking switch circuit, and the output end of the knocking switch circuit is connected with the knocking interface circuit and the knocking indicator lamp circuit;

C. the pressure sensing circuit comprises a pressure sensing interface circuit, a pressure sensing switch circuit and a pressure sensing indicating lamp circuit, the pressure sensing interface circuit is bidirectionally connected with the MCU chip U2, the output end of the MCU chip U2 is connected with the input end of the pressure sensing switch circuit, and the output end of the pressure sensing switch circuit is connected with the pressure sensing interface circuit and the pressure sensing indicating lamp circuit;

D. the 2.4G wireless circuit comprises a 2.4G interface circuit, a 2.4G switch circuit and a 2.4G indicator lamp circuit, the 2.4G interface circuit is bidirectionally connected with the MCU chip U2, the 2.4G interface circuit is also connected with the wireless transceiver, the output end of the MCU chip U2 is connected with the input end of the 2.4G switch circuit, the MCU can be wirelessly controlled by a remote controller when the 2.4G switch circuit is switched on, and the output end of the 2.4G switch circuit is connected with the 2.4G interface circuit and the 2.4G indicator lamp circuit;

E. the stepping motor driving circuit comprises a stepping driver Q6, an interface H3 and a capacitor C10, pins 1 to 4 of the stepping driver Q6 are respectively connected with pins 62, 61, 59 and 58 of an MCU chip U2, pins 8 and 9 of the stepping driver Q6 are respectively connected with one end of the capacitor C10, and pins 13 to 16 of the stepping driver Q6 are connected with the interface H3.

8. The display case circuit of sensor module of claim 7, comprising one or more features selected from the group consisting of:

a. the inertial navigation interface circuit is connected with 16 pins and 17 pins of the MCU chip U2, and comprises: the circuit comprises a connector H9, a resistor R19 and a resistor 20, wherein a pin 3 of the connector H9 is connected with the resistor R19 and then connected with a pin 16 of an MCU chip U2, and a pin 2 of the connector H9 is connected with a resistor R20 and then connected with a pin 17 of the MCU chip U2; MCU chip U2's 15 feet and be used to lead switch circuit and be connected, be used to lead switch circuit and include: the resistance R1 and the P-type MOS tube Q2, the resistance R1 is connected with the grid and the source of the P-type MOS tube Q2, the pin 15 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 1 of the interface H9 of the inertial navigation interface circuit and the inertial navigation indicator lamp circuit; the inertial navigation indicator lamp circuit comprises a resistor R15 and a display lamp LED4, wherein the resistor R15 is connected with the display lamp LED4 in series, one end of the display lamp LED4 is connected with the resistor R15, the other end of the display lamp LED4 is grounded, and the resistor R15 plays a role in limiting current;

b. the knocking interface circuit is connected with a 26 pin of the MCU chip U2 and comprises: the MCU chip comprises an interface CN1, a resistor R7 and a resistor R8, wherein a pin 1 of the interface CN1 is connected with a resistor R7 and a resistor R8, a resistor R7 is connected with a resistor R8 in series, and one end of the resistor R8 is connected with a pin 26 of the MCU chip U2; MCU chip U2's 27 feet and strike switch circuit connection, strike the switch circuit and include: the circuit comprises a resistor R2 and a P-type MOS tube Q3, wherein the resistor R2 is connected with the grid and the source of the P-type MOS tube Q3, the pin 27 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 3 of an interface CN1 of a knocking interface circuit and a knocking indicator lamp circuit; the knocking indicator lamp circuit comprises a resistor R6 and a display lamp LED1, the resistor R6 is connected with the display lamp LED1 in series, one end of the display lamp LED1 is connected with the resistor R6, the other end of the display lamp LED1 is grounded, and the resistor R6 plays a role in limiting current;

c. the pressure-sensitive interface circuit is connected with pins 28, 29 and 30 of the MCU chip U2, and comprises: the interface comprises an interface CN4, a resistor R10 and a resistor 11, wherein a pin 1 of the interface CN4 is connected with a pin 29 of the resistor R10 and an MCU chip U2, a pin 2 of the interface CN4 is connected with a pin 30 of the resistor R11 and an MCU chip U2, and a pin 3 of the interface CN4 is connected with a pin 28 of the MCU chip U2; MCU chip U2's 19 feet and pressure switch circuit are connected, and pressure switch circuit includes: the resistor R3 and the P-type MOS tube Q4, the resistor R3 is connected with the grid and the source of the P-type MOS tube Q4, the pin 19 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 5 of the interface CN4 of the pressure-sensitive interface circuit and the pressure-sensitive indicator lamp circuit; the pressure-sensitive indicator lamp circuit comprises a resistor R12 and a display lamp LED3, wherein the resistor R12 is connected with the display lamp LED3 in series, one end of the display lamp LED3 is connected with the resistor R12, the other end of the display lamp LED3 is grounded, and the resistor R12 plays a role in limiting current;

d. the 2.4G interface circuit is connected with pins 33 to 39 of the MCU chip U2, the 2.4G interface circuit comprises an interface H4, and pins 3 to 9 of the interface H4 are connected with pins 33 to 39 of the MCU chip U2; MCU chip U2's 40 feet and 2.4G switching circuit are connected, and 2.4G switching circuit includes: the resistor R4 and the P-type MOS tube Q5, the resistor R4 is connected with the grid and the source of the P-type MOS tube Q5, the pin 40 of the MCU chip U2 is connected with the grid of the P-type MOS tube Q3, and the drain of the P-type MOS tube Q3 is connected with the pin 2 of the interface H4 of the 2.4G interface circuit and the 2.4G indicator lamp circuit; the 2.4G indicating lamp circuit comprises a resistor R9 and a display lamp LED2, wherein the resistor R9 is connected with the display lamp LED2 in series, one end of the display lamp LED2 is connected with the resistor R9, the other end of the display lamp LED2 is grounded, and the resistor R9 plays a role in limiting current.

9. The display box circuit of sensor module of claim 1, wherein the display box circuit of sensor module further comprises a display interface circuit for the display to switch and display inertial navigation, tapping or pressure characteristic values, the display interface circuit comprising: the circuit comprises an interface CN5, a resistor R17, a resistor R18 and a capacitor C20, wherein a pin 4 of the interface CN5 is connected with a resistor R17 and then connected with a pin 42 of an MCU chip U2, a pin 5 of the interface CN5 is connected with a resistor R18 and then connected with a pin 43 of an MCU chip U2, and a pin 5 of the interface CN5 is connected with a capacitor C20 and then grounded; the display case circuit of the sensor module further comprises: the clock hand signal circuit, the function switching circuit, the reset circuit and the burning interface are connected with the input end of the MCU chip U2, and the burning interface is bidirectionally connected with the MCU chip U2.

10. The display box circuit of the sensor module of claim 9, wherein the hour hand signal circuit comprises a first hour hand signal circuit and a second hour hand signal circuit, the first hour hand signal circuit comprises a capacitor C11, a capacitor C12 and a crystal oscillator Y1, the capacitor C11 and the capacitor C12 are respectively connected with two ends of a crystal oscillator Y1, and two ends of a crystal oscillator Y1 are respectively connected with 3 pins and 4 pins of an MCU chip U2; the second hour hand signal circuit comprises a capacitor C15, a capacitor C16 and a crystal oscillator Y2, wherein the capacitor C15 and the capacitor C16 are respectively connected with two ends of a crystal oscillator Y2, and two ends of a crystal oscillator Y2 are respectively connected with a pin 5 and a pin 6 of an MCU chip U2; the function switching circuit is connected with 18 feet of the MCU chip U2, and the function switching circuit comprises: the switch STEUP is connected with the capacitor C17 in parallel and then connected with the resistor R13 in parallel, the switch STEUP is a manual press switch, and the press switch STEUP outputs low level to 18 feet of the MCU chip U4 to trigger the function switching of the MCU chip U2; determining a switching function mode corresponding to the push switch STEUP by setting an internal program of the MCU chip U2; reset circuit is connected with MCU chip U2's 7 feet, and reset circuit includes: the switch RST is connected with the capacitor C18 in parallel and then connected with the resistor R14 in parallel, the switch RST is a manual push switch, and the push switch RST outputs a low level to a pin 7 of the MCU chip U2 to play a role in resetting the MCU chip U2; the burning interface is used for burning or/and reading a control program in the MCU chip U2, and pins 1 to 4 of the burning interface P1 are respectively connected with pins 60, 7, 49 and 46 of the MCU chip U2.