Intelligent control system and method for ultrasonic waves

Abstract

The invention discloses an intelligent control system for ultrasonic waves. The system comprises a man-machine interaction module, a control module, a temperature detection circuit module, a current acquisition circuit module, a power output module, a first circuit output module, a frequency tracking and safety protection module and a second circuit output module. The control module is used for receiving electric signals output by the man-machine interaction module, the current acquisition module and the temperature detection module, the output end of the control module is communicated with the power output module so as to control the power output module to output controllable voltage signals, and electric signals output by the power output module are communicated with the second circuit output module; meanwhile, the electric signal output by the control module is transmitted to the frequency tracking and safety protection module through the first circuit output module, the frequency tracking and safety protection module outputs the frequency signal to the current acquisition module through the second circuit output module, and the current acquisition module inputs the acquired current signal to the control module. The CMOS phase-locked loop integrated circuit of the frequency tracking and safety protection module and the trigger U1 are adopted, the frequency scanning function is achieved, automatic locking and frequency automatic tracking locking are achieved when the signals are consistent with feedback signals, and stability and precision are high.

Description

Technical Field

[0001] The present invention relates to the field of ultrasonic technology, and in particular to an ultrasonic intelligent control system and method. Background Art

[0002] Ultrasonic waves are sound waves with a frequency higher than 20,000 Hz. They are mechanical longitudinal waves that propagate in elastic media. Ultrasonic waves have high frequencies and short wavelengths. They have good directionality, high energy, and strong penetrating power during propagation. Ultrasonic waves are widely used in many fields, including medical diagnosis, industrial testing, and underwater detection.

[0003] The current ultrasound uses a single-chip microcomputer to achieve automatic tracking of the output frequency. Due to the limitation of the single-chip microcomputer, the output frequency fluctuation range is large, and the output frequency cannot be locked well, so the equipment working efficiency is not high. The frequency output of the ultrasonic self-excitation circuit on the market is not stable enough and is greatly affected by the environment; the output power is limited and cannot meet the application environment with high power requirements; the anti-interference ability is weak, which affects the working stability, and the debugging is complicated and the frequency adjustment is limited. The real-time performance of the ultrasonic circuit controlled by the single-chip microcomputer is limited by the processing power of the single-chip microcomputer, and the anti-interference ability is limited. Especially when the power consumption is low, the weak signal will affect the measurement accuracy and stability, and the output frequency cannot be well controlled due to the limited output range of the single-chip microcomputer itself.

[0004] Therefore, it is urgent to develop an ultrasonic automatic frequency tracking method that can change the output power, adjust the output voltage, and can be adjusted according to different environments, automatically track and lock the frequency, and has high stability and high precision. Summary of the invention

[0005] The purpose of the present invention is to provide an ultrasonic intelligent control system and method to solve the problems of the current ultrasonic control system that the stability and accuracy need to be improved and the output voltage cannot be adjusted.

[0006] The purpose of the present invention is achieved through the following technical solutions: An ultrasonic intelligent control system, the system comprising a human-computer interaction module, a control module, a temperature detection circuit module, a current acquisition circuit module, a power output module, a first circuit output module, a frequency tracking and safety protection module, and a second circuit output module; The control module is used to receive the electrical signals output by the human-computer interaction module and the temperature detection module. The output end of the control module is connected to the power output module, thereby controlling the power output module to output a controllable voltage signal. The electrical signal output by the power output module is connected to the second circuit output module. Meanwhile, the electrical signal output by the control module is transmitted to the frequency tracking and safety protection module through the first circuit output module. The frequency tracking and safety protection module outputs the frequency signal to the current acquisition module through the second circuit output module, and the current acquisition module inputs the collected current signal into the control module.

[0007] Further, a group of voltage signals are obtained by voltage division of the resistor R33 and the resistor R31 in the temperature detection circuit module and then connected to the positive terminal of the operational amplifier U11.1. The temperature sensor is connected through the terminal block J8, forms a voltage division circuit with the resistor R32 and then is connected to the negative terminal of the operational amplifier U11.1. After the signal is amplified by the resistor R27, it is connected to the single-chip microcomputer U12 of the control module to obtain the temperature signal. The temperature detection circuit module includes the resistor R33, the resistor R31, the resistor R32, the resistor R27, the capacitors C28, C27, the operational amplifier U11.1, and the terminal block J8.

[0008] One end of the resistor R33 is connected to the power supply VCC and the other end is connected to the 3rd pin of the operational amplifier U11.1. One end of the resistor R31 is connected to the resistor R33 and the other end is connected to the ground GND. The 1st pin of the terminal block J8 is connected to the power supply VCC, the 2nd pin is connected to the 2nd pin of the operational amplifier U11.1. One end of the resistor R27 is connected to the 2nd pin of the operational amplifier and the other end is connected to the 1st pin of the operational amplifier. The capacitor C28 is in parallel with the resistor R27. One end of the capacitor C27 is connected to the power supply VCC and the other end is connected to the ground GND. The 1st pin of the operational amplifier U11.1 is connected to the 8th pin of the single-chip microcomputer U12 of the control module.

[0009] Further, the current acquisition circuit module includes the precision current transformer U13, the resistors R35, R34, the capacitor C30, and the diode D11.

[0010] One end of the precision current transformer U13 is connected to the positive pole of the diode D11 and the other end is grounded. One end of the resistor R35 is connected to the positive pole of the diode D11 and the other end is grounded. One end of the capacitor C30 is connected to the negative pole of the diode D11 and the other end is grounded. The resistor R34 is in parallel with the capacitor C30. The negative pole of the diode D11 is connected to the 5th pin of the single-chip microcomputer U12 of the control module.

[0011] The precision current transformer U13 receives the electrical signal of the second circuit output module and outputs a current signal. After passing through the resistor R35, a voltage signal is obtained. After rectification and filtering by the diode D11 and the capacitor C29, it is connected to the single-chip microcomputer U12 of the control module to obtain the current signal.

[0012] Further, the human-computer interaction module includes a capacitor C31, an RS-48 chip U14, a resistor R129, a resistor R130, a resistor R131, and a terminal block J12.

[0013] One end of the resistor R129 is connected to the power supply VCC, and the other end is connected to pin 6 of the RS-48 chip U14; one end of the resistor R130 is connected to the ground, and the other end is connected to pin 7 of the RS-48 chip U14; one end of the resistor R131 is connected to pin 6 of the RS-48 chip U14, and the other end is connected to pin 7 of the RS-48 chip U14; Pin 1 of the terminal block J12 is connected to the power supply VCC, pin 2 is connected to pin 7 of the RS-48 chip U14, pin 3 is connected to pin 6 of the RS-48 chip U14, and pin 4 is connected to the ground GND; Pin 1 of the RS-48 chip U14 is connected to pin 1 of the single-chip microcomputer U12 of the control module, pins 2 and 3 are connected and then connected to pin 3 of the single-chip microcomputer U12 of the control module, and pin 4 is connected to pin 2 of the single-chip microcomputer U12 of the control module. Thus, the human-computer interaction module transmits signals to the control module through the RS-48 chip U14.

[0014] Further, the power output module includes a composite transistor array JP1, a capacitor C32, a capacitor C6, a terminal block J2, a terminal block L2, a terminal block L4, a terminal block L8, a terminal block L16, a terminal block L32, a terminal block L64, a relay K3, a relay K5, a relay K6, a relay K8, a relay K7, a relay K12, a relay K11, diodes D14, D15, D16, D13, D17, D18, D19, an inductor L1, and a bridge rectifier D10.

[0015] One end of the capacitor C32 is connected to the power supply +24V, and the other end is connected to the ground; One end of the terminal block J2 is connected to pin 5 of the relay K3, and the other end is connected to the terminal block L64; The positive electrode of the diode D14 is connected to pin 1 of the relay K3, and the negative electrode is connected to pin 2 of the relay K3; the positive electrode of the diode D15 is connected to pin 1 of the relay K5, and the negative electrode is connected to pin 2 of the relay K5; the positive electrode of the diode D17 is connected to pin 1 of the relay K7, and the negative electrode is connected to pin 2 of the relay K7; the positive electrode of the diode D18 is connected to pin 1 of the relay K12, and the negative electrode is connected to pin 2 of the relay K12; the positive electrode of the diode D19 is connected to pin 1 of the relay K11, and the negative electrode is connected to pin 2 of the relay K11; pin 3 of the relay K3 is connected to pin 5 of the relay K5, and pin 4 is connected to the terminal block L2; pin 3 of the relay K5 is connected to pin 5 of the relay K6, and pin 4 is connected to the terminal block L3; pin 3 of the relay K6 is connected to pin 5 of the relay K8, and pin 4 is connected to the terminal block L4; pin 3 of the relay K8 is connected to pin 5 of the relay K7, and pin 4 is connected to the terminal block L8; pin 3 of the relay K7 is connected to pin 5 of the relay K12, and pin 4 is connected to the terminal block L16; pin 3 of the relay K12 is connected to pin 5 of the relay K11, and pin 4 is connected to the terminal block L32; pin 3 of the relay K11 is connected to the terminal block J2, and pin 4 is connected to the terminal block L64; Pin 1 of the composite transistor array JP1 is connected to pin 40 of the single-chip microcomputer U12 of the control module, pin 2 is connected to pin 38 of the single-chip microcomputer U12 of the control module, pin 3 is connected to pin 37 of the single-chip microcomputer U12 of the control module, pin 4 is connected to pin 36 of the single-chip microcomputer U12 of the control module, pin 5 is connected to pin 33 of the single-chip microcomputer U12 of the control module, pin 6 is connected to pin 32 of the single-chip microcomputer U12 of the control module, pin 7 is connected to pin 31 of the single-chip microcomputer U12 of the control module, pin 8 is connected to the ground GND, pin 9 is connected to the power supply +24V, pin 10 is connected to the relay K7, pin 11 is connected to the relay K12, pin 12 is connected to the relay 11, pin 13 is connected to the relay K3, pin 14 is connected to the relay K5, pin 15 is connected to the relay K6, and pin 16 is connected to the relay K8.

[0016] Pin 1 of the inductor L1 is connected to pin 3 of the terminal block J2, pin 4 is connected to pin 1 of the terminal block J2, pin 2 is connected to pin 1 of the bridge rectifier D10, and pin 3 is connected to pin 3 of the bridge rectifier D10; the C6 is connected in parallel with pins 2 and 3 of the inductor L1; pin 2 of the bridge rectifier D10 is connected to the output voltage VDC+, pin 4 is connected to the signal ground SGND, and is input to the second output circuit module.

[0017] The control module raises the output signal to 24V through the composite transistor array JP1 of the power output module, the control signal is connected to the relay, and finally a controllable output voltage of 1-128V is formed. The output voltage signal is filtered by the capacitor C6 and then input to the second circuit output module.

[0018] Further, the first circuit output module includes resistor R36, resistor R37, resistor R38, and triode Q5; One end of the resistor R36 is connected to the power supply VCC, and the other end is connected to the resistor R37; the resistor R37 is connected to the 1st pin of the triode Q5; the 2nd pin of the triode Q5 is connected to the resistor R38, and the 3rd pin is connected to the ground; one end of the resistor R38 is connected to the power supply VCC; one end of the resistor R37 is connected to the 17th pin of the microcontroller U12 of the control module; the 3rd pin of the triode Q5 is connected to the 5th pin of the CMOS phase-locked loop integrated circuit U7 of the frequency tracking and safety protection module.

[0019] After the signal output by the control module passes through the triode Q5 of the first circuit output module, the voltage is boosted to 12V, and then the signal is input into the frequency tracking and safety protection module.

[0020] Further, the control module includes capacitor C29, capacitor E3, microcontroller U12, and terminal block J10; The 1st pin of the terminal block J10 is connected to the power supply VCC, the 2nd pin is connected to the 18th pin of the microcontroller U12, the 3rd pin is connected to the 19th pin of the microcontroller U12, and the 4th pin is connected to the ground; one end of the capacitor C29 is connected to the power supply VCC, and the other end is connected to the ground; the capacitor E3 is connected in parallel with the capacitor C29.

[0021] Further, the frequency tracking and safety protection module includes capacitor C16, capacitor C14, capacitor C15, capacitor C12, capacitor C21, capacitor C7, capacitor C4, capacitor C19, capacitor C20, capacitor C25, resistor R39, resistor R10, resistor R13, resistor R18, resistor R22, resistor R19, resistor R20, resistor R21, resistor R24, resistor R23, resistor R12, resistor R15, resistor R1, resistor R7, resistor R8, potentiometer W1, potentiometer W2, triode Q4, triode Q3, triode Q2, diode D6, gate driver chip U3, high-speed optocoupler U6, CMOS phase-locked loop U7, and flip-flop U1.

[0022] One end of the capacitor C16 is connected to the power supply +15V, and the other end is connected to the resistor R13; the capacitor C14 is in parallel with the capacitor C16; one end of the resistor R39 is connected to the power supply +15V, and the other end is connected to pin 3 of the gate driver chip U3; one end of the resistor R13 is connected to the capacitor C16, and the other end is connected to the signal ground SGND; one end of the diode D6 is connected to the power supply +15V, and the other end is connected to pin 8 of the gate driver chip U3; one end of the capacitor C15 is connected to pin 8 of the gate driver chip U3, and the other end is connected to pin 6 of the gate driver chip U3; the capacitor C12 is in parallel with the capacitor C15; one end of the resistor R10 is connected to pin 6 of the gate driver chip U3, and the other end is connected to the midpoint of the output MOS transistor; pin 1 of the gate driver chip U3 is connected to the power supply +15V, pin 2 is connected to the resistor R20, pin 3 is connected to the resistor R39, pin 4 is connected to C16, pin 5 is connected to the lower transistor of the MOS transistor, pin 7 is connected to the upper transistor of the MOS transistor, and pin 8 is connected to the diode D6; one end of the capacitor C21 is connected to the power supply +5V, and the other end is connected to the signal ground SGND; one end of the resistor R18 is connected to the power supply +12V, and the other end is connected to pin 2 of the high-speed optocoupler U6; one end of the resistor R22 is connected to the power supply +12V, and the other end is connected to pin 3 of the high-speed optocoupler U6; one end of the resistor R23 is connected to the power supply +12V, and the other end is connected to the resistor R24; one end of the resistor R24 is connected to pin 1 of the triode Q4; pin 2 of the triode Q4 is grounded, and pin 3 is connected to pin 2 of the terminal block J7; pin 1 of the terminal block J7 is connected to pin 3 of the high-speed optocoupler U6; one end of the resistor R19 is connected to the power supply +5V, and the other end is connected to pin 6 of the high-speed optocoupler U6; one end of the resistor R21 is connected to pin 6 of the high-speed optocoupler U6, and the other end is connected to pin 1 of the triode Q3; pin 2 of the triode Q3 is connected to the signal ground SGND; one end of the resistor R20 is connected to the power supply +15V, and the other end is connected to pin 3 of the triode Q3; the capacitor C7 is connected in parallel between pins 6 and 7 of the CMOS phase-locked loop U7; one end of the resistor R7 is grounded, and the other end is connected to pin 1 of the potentiometer W1; pins 2 and 3 of the potentiometer W1 are short-circuited and connected to pin 12 of the CMOS phase-locked loop U7; one end of the resistor R6 is grounded, and the other end is connected to pin 1 of the potentiometer W2; pins 2 and 3 of the potentiometer W2 are short-circuited and connected to pin 11 of the CMOS phase-locked loop U7; one end of the resistor R12 is connected to pin 13 of the CMOS phase-locked loop U7, and the other end is connected to the resistor R1; the other end of the resistor R1 is connected to pin 9 of the CMOS phase-locked loop U7; one end of the resistor R15 is grounded, and the other end is connected to the capacitor C4; the other end of the capacitor C4 is connected to pin 9 of the CMOS phase-locked loop U7; pin 1 of the triode Q2 is connected to the resistor R25, pin 2 is grounded, and pin 3 is connected to pin 9 of the CMOS phase-locked loop U7; the other end of the resistor R25 is connected to pin 8 of the flip-flop U1;Pin 1 of the trigger C1 is connected to pin 11, pin 2 is connected to pin 5, pin 3 is connected to pin 4 of the CMOS phase-locked loop U7, pin 4 is grounded, pin 6 is grounded, pin 7 is grounded, and pin 8 is connected to pin 5 of the CMOS phase-locked loop U7; pin 10 is grounded, pin 12 is connected to pin 9, pin 13 is connected to pin 3 of the CMOS phase-locked loop U7, and pin 14 is connected to the power supply VCC. One end of the capacitor C19 is connected to the power supply +12V, and the other end is grounded; the capacitor C20 is in parallel with the capacitor C19; the capacitor C25 is in parallel with the capacitor C19.

[0023] The electrical signal output by the first circuit output module passes through the CMOS phase-locked loop U7 and the trigger U1 of the frequency tracking and safety protection module, and then the output signal is connected to the gate drive chip U3 to drive the MOS transistor to output, realizing automatic frequency tracking and locking. The gate drive chip U3 inputs the frequency signal into the second circuit output module to control the output of the MOS transistors R3 and R14 of the second circuit output module, and changes the voltage signal output by the power output module into a high-frequency output signal to drive the horn to output.

[0024] A control method for an intelligent control system of the above ultrasonic wave includes the following steps: The user starts the ultrasonic wave by starting the human-computer interaction module. The human-computer interaction module receives the instruction and sends an electrical signal to the control module. The control module controls the power output module to output the corresponding voltage according to the received electrical signal, and inputs it into the second circuit output module after filtering; at the same time, the electrical signal output by the control module is output to the frequency tracking and safety protection module through the first circuit output module, thereby adjusting the output frequency, and the second circuit output module controls the output of the horn through the output frequency. The current acquisition circuit module continuously acquires the current signal of the frequency tracking and safety protection module and inputs it into the control module. At the same time, the temperature detection circuit module also inputs the temperature information into the control module and records it. The control module analyzes and compares the collected information, measures the temperature of the liquid through the temperature sensor. When the detected current value exceeds the preset safety threshold, the control module immediately cuts off the power output module.

[0025] The beneficial effects of the present invention are as follows: 1. For the intelligent control system and method of ultrasonic wave provided by the present invention, due to the adoption of the CMOS phase-locked loop integrated circuit and the trigger U1 of the frequency tracking and safety protection module, the frequency scanning function is realized. When it is consistent with the feedback signal, it is automatically locked, and the frequency is automatically tracked and locked, with high stability and high precision.

[0026] 2. For the intelligent control system and method of ultrasonic wave provided by the present invention, it can change the output power, and the output voltage can be adjusted from 1V to 128V according to different environments.

[0027] 3. The intelligent control system and method for ultrasonic waves provided by the present invention adopt a dynamic current protection mechanism. The resonant current signal of the frequency tracking module is collected in real time through the precision current transformer U13 of the current acquisition circuit module. When the detected current value exceeds the preset safety threshold, the control module immediately cuts off the power output module and triggers a three-level protection mechanism, which has isolation protection.

[0028] 4. The intelligent control system and method for ultrasonic waves provided by the present invention use a temperature sensor to measure the temperature of the liquid, and combine the PID incomplete differential algorithm for dynamic time control, which can be dynamically adjusted according to the ambient noise and effectively suppress high-frequency interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the electrical signal connection relationship of each module of the intelligent control system for ultrasonic waves of the present invention; Figure 2 Schematic diagram of the circuit connection relationship of the temperature detection circuit module of the present invention; Figure 3 Schematic diagram of the circuit connection relationship of the current acquisition circuit module of the present invention; Figure 4 Schematic diagram of the circuit connection relationship of the human-computer interaction module of the present invention; Figure 5 Schematic diagram of the circuit connection relationship of the power output module of the present invention; Figure 6 Schematic diagram of the circuit connection relationship of the first circuit output module of the present invention; Figure 7 Schematic diagram of the circuit connection relationship of the control module of the present invention; Figure 8 Schematic diagram of the circuit connection relationship of the frequency tracking and safety protection module of the present invention; Figure 9 Schematic diagram of the circuit connection relationship of the second circuit output module of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0030] Definition of the terms used in the present invention: Unless otherwise specified, the initial definitions provided for the terms in this article apply to the terms throughout the specification; for terms not specifically defined in this article, their meanings should be given according to the disclosure content and context, which can be understood by those skilled in the art.

[0031] In order to more clearly illustrate the technical solution of the present invention, the specific implementation manner is described as follows: Embodiment 1 As Figure 1As shown, an intelligent control system for ultrasonic waves disclosed in Embodiment 1 of the present invention. The system includes a human-computer interaction module, a control module, a temperature detection circuit module, a current acquisition circuit module, a power output module, a first circuit output module, a frequency tracking and safety protection module, and a second circuit output module. The control module is used to receive the electrical signals output by the human-computer interaction module, the current acquisition module, and the temperature detection module. The output end of the control module is connected to the power output module, thereby controlling the power output module to output a controllable voltage signal. The electrical signal output by the power output module is connected to the second circuit output module. At the same time, the control module transmits the collected information to the first circuit output module and the frequency tracking and safety protection module through electrical signals. The frequency tracking and safety protection module outputs the frequency signal to the current acquisition module through the second circuit output module. The current acquisition module inputs the collected current signal to the control module.

[0032] The circuit of the temperature detection circuit module is as Figure 2 shown. The temperature detection circuit module includes a resistor R33, a resistor R31, a resistor R32, a resistor R27, a capacitor C28, a capacitor C27, an operational amplifier U11.1, and a terminal block J8.

[0033] The temperature detection circuit module obtains a set of electrical signals by dividing the voltage of the resistor R33 and the resistor R31, and then connects them to the positive terminal of the operational amplifier U11.1. The PT1000 thermal resistor is used as a temperature sensor and is connected through J8. It forms a voltage division circuit with the resistor R32 and is then connected to the negative terminal of the operational amplifier U11.1. After the signal is amplified by the resistor R27, it is connected to the single-chip microcomputer U12 of the control module, and the voltage value is converted into a corresponding temperature signal.

[0034] Specifically, the circuit connection relationship of the temperature detection circuit module is as follows: One end of the resistor R33 is connected to the power supply VCC, and the other end is connected to the 3rd pin of the operational amplifier U11.1. One end of the resistor R31 is connected to the resistor R33, and the other end is connected to the ground GND. The 1st pin of the terminal block J8 is connected to the power supply VCC, the 2nd pin is connected to the 2nd pin of the operational amplifier U11.1. One end of the resistor R27 is connected to the 2nd pin of the operational amplifier, and the other end is connected to the 1st pin of the operational amplifier. The capacitor C28 is connected in parallel with the resistor R27. One end of the capacitor C27 is connected to the power supply VCC, and the other end is connected to the ground GND.

[0035] The 1st pin of the operational amplifier U11.1 of the temperature detection circuit module is connected to the 8th pin of the single-chip microcomputer U12 of the control module.

[0036] The circuit of the current acquisition circuit module is as Figure 3As shown, the current acquisition circuit module includes a precision current transformer U13, a resistor R35, a resistor R34, a capacitor C30, and a diode D11.

[0037] The feedback current of the current acquisition circuit module outputs a current signal through the precision current transformer U13, and a voltage signal is obtained after passing through the resistor R35. After rectification and filtering by the diode D11 and the capacitor C29, it is connected to the microcontroller U12 of the control module to convert the voltage value into the corresponding temperature signal.

[0038] The circuit connection relationship of the specific current acquisition circuit module is as follows: One end of the precision current transformer U13 is connected to the positive electrode of the diode D11, and the other end is grounded; one end of the resistor R35 is connected to the positive electrode of the diode D11, and the other end is grounded; one end of the capacitor C30 is connected to the negative end of the diode D11, and the other end is grounded; the resistor R34 is connected in parallel with the capacitor C30.

[0039] The negative end of the diode D11 of the current acquisition circuit module is connected to the fifth pin of the single chip microcomputer U12 of the control module.

[0040] The circuit of the human-computer interaction module is as follows Figure 4 As shown, the human-computer interaction module includes a capacitor C31, an RS-48 chip U14, a resistor R129, a resistor R130, a resistor R131, and a connection terminal J12.

[0041] The human-computer interaction module uses RS-48 chip U14 for communication, with a baud rate of 9600. The control module is connected to the RS-48 chip U14 communication chip through the microcontroller U12 communication port. The RS-48 chip U14 communication chip communicates with the human-computer interaction module (touch screen) through a connecting line to realize data interaction.

[0042] The circuit connection relationship of the human-computer interaction module is specifically as follows: One end of the resistor R129 is connected to the power supply VCC, and the other end is connected to the 6th pin of the RS-48 chip U14; one end of the resistor R130 is connected to the ground, and the other end is connected to the 7th pin of the RS-48 chip U14; one end of the resistor R131 is connected to the 6th pin of the RS-48 chip U14, and the other end is connected to the 7th pin of the RS-48 chip U14; Pin 1 of the connection terminal J12 is connected to the power supply VCC, pin 2 is connected to pin 7 of the RS-48 chip U14, pin 3 is connected to pin 6 of the RS-48 chip U14, and pin 4 is connected to the ground GND.

[0043] Pin 1 of the RS-48 chip U14 of the human-computer interaction module is connected to pin 1 of the single-chip microcomputer U12 of the control module. Pins 2 and 3 are connected and inserted into pin 3 of the single-chip microcomputer U12 of the control module. Pin 4 is connected to pin 2 of the single-chip microcomputer U12 of the control module. The circuit of the power output module is as Figure 5 shown. The power output module includes a composite transistor array JP1, a capacitor C32, a capacitor C6, a terminal block J2, a terminal block L2, a terminal block L4, a terminal block L8, a terminal block L16, a terminal block L32, a terminal block L64, a relay K3, a relay K5, a relay K6, a relay K8, a relay K7, a relay K12, a relay K11, diodes D14, D15, D16, D13, D17, D18, D19, an inductor L1, and a bridge rectifier D10.

[0044] The single-chip microcomputer U12 of the control module passes through the composite transistor array JP1 to raise the output signal to a 24V control signal and access the relay. The power output module is composed of 7 relays in series, finally forming a controllable output voltage of 1-128V. The output voltage signal is filtered by the capacitor C6 and then input into the second circuit output module.

[0045] The specific circuit connection relationship of the power output module is as follows: One end of the capacitor C32 is connected to the power supply +24V, and the other end is connected to the ground; One end of the terminal block J2 is connected to pin 5 of the relay K3, and the other end is connected to the terminal block L64; The positive electrode of the diode D14 is connected to pin 1 of the relay K3, and the negative electrode is connected to pin 2 of the relay K3; the positive electrode of the diode D15 is connected to pin 1 of the relay K5, and the negative electrode is connected to pin 2 of the relay K5; the positive electrode of the diode D17 is connected to pin 1 of the relay K7, and the negative electrode is connected to pin 2 of the relay K7; the positive electrode of the diode D18 is connected to pin 1 of the relay K12, and the negative electrode is connected to pin 2 of the relay K12; the positive electrode of the diode D19 is connected to pin 1 of the relay K11, and the negative electrode is connected to pin 2 of the relay K11; pin 3 of the relay K3 is connected to pin 5 of the relay K5, and pin 4 is connected to the terminal L2; pin 3 of the relay K5 is connected to pin 5 of the relay K6, and pin 4 is connected to the terminal L3; pin 3 of the relay K6 is connected to pin 5 of the relay K8, and pin 4 is connected to the terminal L4; pin 3 of the relay K8 is connected to pin 5 of the relay K7, and pin 4 is connected to the terminal L8; pin 3 of the relay K7 is connected to pin 5 of the relay K12, and pin 4 is connected to the terminal L16; pin 3 of the relay K12 is connected to pin 5 of the relay K11, and pin 4 is connected to the terminal L32; pin 3 of the relay K11 is connected to the terminal J2, and pin 4 is connected to the terminal L64.

[0046] Pin 1 of the inductor L1 is connected to pin 3 of the terminal J2, pin 4 is connected to pin 1 of the terminal J2, pin 2 is connected to pin 1 of the bridge rectifier D10, and pin 3 is connected to pin 3 of the bridge rectifier D10; the C6 is connected in parallel with pins 2 and 3 of the inductor L1; pin 2 of the bridge rectifier D10 is connected to the output voltage VDC+, pin 4 is connected to the signal ground SGND, and is input to the second output circuit module.

[0047] Pin 1 of the composite transistor array JP1 of the power output module is connected to pin 40 of the single-chip microcomputer U12 of the control module, pin 2 is connected to pin 38 of the single-chip microcomputer U12 of the control module, pin 3 is connected to pin 37 of the single-chip microcomputer U12 of the control module, pin 4 is connected to pin 36 of the single-chip microcomputer U12 of the control module, pin 5 is connected to pin 33 of the single-chip microcomputer U12 of the control module, pin 6 is connected to pin 32 of the single-chip microcomputer U12 of the control module, pin 7 is connected to pin 31 of the single-chip microcomputer U12 of the control module, pin 8 is connected to the ground GND, pin 9 is connected to the power supply +24V, pin 10 is connected to the relay K7, pin 11 is connected to the relay K12, pin 12 is connected to the relay 11, pin 13 is connected to the relay K3, pin 14 is connected to the relay K5, pin 15 is connected to the relay K6, and pin 16 is connected to the relay K8.

[0048] The circuit of the first circuit output module is as Figure 6 shown, and the first circuit output module includes a resistor R36, a resistor R37, a resistor R38, and a triode Q5.

[0049] The single-chip microcomputer U12 of the control module outputs a signal. After passing through the triode Q5, the voltage is boosted to 12V and input to the frequency tracking and safety protection module.

[0050] The specific circuit connection relationship of the first circuit output module is as follows: One end of the resistor R36 is connected to the power supply VCC, and the other end is connected to the resistor R37; the resistor R37 is connected to the pin 1 of the triode Q5; the pin 2 of the triode Q5 is connected to the resistor R38, and the pin 3 is connected to the ground; one end of the resistor R38 is connected to the power supply VCC.

[0051] One end of the resistor R37 of the first circuit output module is connected to the pin 17 of the single-chip microcomputer U12 of the control module; the pin 3 of the triode Q5 of the first circuit output module is connected to the pin 5 of the CMOS phase-locked loop integrated circuit U7 of the frequency tracking and safety protection module.

[0052] The circuit of the control module is as Figure 7 shown. The control module includes a capacitor C29, a capacitor E3, a single-chip microcomputer U12, and a terminal block J10. The user inputs the horn parameters through the human-computer interaction module. After obtaining the data, the control module compares with the built-in database to obtain an accurate voltage output range, and outputs an electrical signal to control the power output module to output the corresponding voltage range.

[0053] The specific circuit connection relationship of the control module is as follows: The pin 1 of the terminal block J10 is connected to the power supply VCC, the pin 2 is connected to the pin 18 of the single-chip microcomputer U12, the pin 3 is connected to the pin 19 of the single-chip microcomputer U12, and the pin 4 is connected to the ground; one end of the capacitor C29 is connected to the power supply VCC, and the other end is connected to the ground; the capacitor E3 is connected in parallel with the capacitor C29.

[0054] The circuit of the frequency tracking and safety protection module is as Figure 8 shown. The frequency tracking and safety protection module includes capacitors C16, C14, C15, C12, C21, C7, C4, C19, C20, C25, resistors R39, R10, R13, R18, R22, R19, R20, R21, R24, R23, R12, R15, R1, R7, R8, potentiometers W1, W2, triodes Q4, Q3, Q2, diode D6, gate driver chip U3, high-speed optocoupler U6, CMOS phase-locked loop U7, and flip-flop U1.

[0055] The first circuit output module outputs a signal. After passing through the CMOS phase-locked loop U7 and the flip-flop U1 of the frequency tracking and safety protection module, the output signal is connected to the gate driver chip U3 to drive the MOS transistor to output, realizing automatic frequency tracking and locking.

[0056] The specific circuit connection relationship of the frequency tracking and safety protection module is as follows: One end of the capacitor C16 is connected to the power supply +15V, and the other end is connected to the resistor R13; the capacitor C14 is connected in parallel with the capacitor C16; one end of the resistor R39 is connected to the power supply +15V, and the other end is connected to pin 3 of the gate driver chip U3; one end of the resistor R13 is connected to the capacitor C16, and the other end is connected to the signal ground SGND; one end of the diode D6 is connected to the power supply +15V, and the other end is connected to pin 8 of the gate driver chip U3; one end of the capacitor C15 is connected to pin 8 of the gate driver chip U3, and the other end is connected to pin 6 of the gate driver chip U3; the capacitor C12 is connected in parallel with the capacitor C15; one end of the resistor R10 is connected to pin 6 of the gate driver chip U3, and the other end is connected to the midpoint of the output MOS transistor; pin 1 of the gate driver chip U3 is connected to the power supply +15V, pin 2 is connected to the resistor R20, pin 3 is connected to the resistor R39, pin 4 is connected to C16, pin 5 is connected to the MOS transistor R14, pin 7 is connected to the MOS transistor R3, and pin 8 is connected to the diode D6; one end of the capacitor C21 is connected to the power supply +5V, and the other end is connected to the signal ground SGND; one end of the resistor R18 is connected to the power supply +12V, and the other end is connected to pin 2 of the high-speed optocoupler U6; one end of the resistor R22 is connected to the power supply +12V, and the other end is connected to pin 3 of the high-speed optocoupler U6; one end of the resistor R23 is connected to the power supply +12V, and the other end is connected to the resistor R24; one end of the resistor R24 is connected to pin 1 of the triode Q4; pin 2 of the triode Q4 is grounded, and pin 3 is connected to pin 2 of the terminal block J7; pin 1 of the terminal block J7 is connected to pin 3 of the high-speed optocoupler U6; one end of the resistor R19 is connected to the power supply +5V, and the other end is connected to pin 6 of the high-speed optocoupler U6; one end of the resistor R21 is connected to pin 6 of the high-speed optocoupler U6, and the other end is connected to pin 1 of the triode Q3; pin 2 of the triode Q3 is connected to the signal ground SGND; one end of the resistor R20 is connected to the power supply +15V, and the other end is connected to pin 3 of the triode Q3; the capacitor C7 is connected across pins 6 and 7 of the CMOS phase-locked loop U7; one end of the resistor R7 is grounded, and the other end is connected to pin 1 of the potentiometer W1; pins 2 and 3 of the potentiometer W1 are short-circuited and connected to pin 12 of the CMOS phase-locked loop U7; one end of the resistor R6 is grounded, and the other end is connected to pin 1 of the potentiometer W2; pins 2 and 3 of the potentiometer W2 are short-circuited and connected to pin 11 of the CMOS phase-locked loop U7; one end of the resistor R12 is connected to pin 13 of the CMOS phase-locked loop U7, and the other end is connected to the resistor R1; the other end of the resistor R1 is connected to pin 9 of the CMOS phase-locked loop U7; one end of the resistor R15 is grounded, and the other end is connected to the capacitor C4; the other end of the capacitor C4 is connected to pin 9 of the CMOS phase-locked loop U7; pin 1 of the triode Q2 is connected to the resistor R25, pin 2 is grounded, and pin 3 is connected to pin 9 of the CMOS phase-locked loop U7; the other end of the resistor R25 is connected to pin 8 of the flip-flop U1;Pin 1 of the trigger C1 is connected to pin 11, pin 2 is connected to pin 5, pin 3 is connected to pin 4 of the CMOS phase-locked loop U7, pin 4 is grounded, pin 6 is grounded, pin 7 is grounded, and pin 8 is connected to pin 5 of the CMOS phase-locked loop U7; pin 10 is grounded, pin 12 is connected to pin 9, pin 13 is connected to pin 3 of the CMOS phase-locked loop U7, and pin 14 is connected to the power supply VCC. One end of the capacitor C19 is connected to the power supply +12V, and the other end is grounded; the capacitor C20 is in parallel with the capacitor C19; the capacitor C25 is in parallel with the capacitor C19.

[0057] The second circuit output module is as Figure 9 shown, and includes a capacitor C13, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C34, a capacitor C33, a resistor R4, a resistor R16, a resistor R5, a resistor R17, a resistor R41, a resistor R40, a resistor R44, a diode D2, a diode D7, a diode D5, a diode D1, a transformer T3, an inductor L5, a horn J11, an MOS transistor R3, and an MOS transistor R14.

[0058] The circuit connection relationship of the second circuit output module is specifically as follows: One end of the capacitor C13 is connected to the diode D2, and the other end is connected to the capacitor C22; the other end of the capacitor C22 is connected to pin 3 of the MOS transistor R3; one end of the capacitor bank C23 is connected to the diode D1, and the other end is connected to the capacitor C24; the other end of the capacitor C24 is connected to pin 3 of the MOS transistor R14; one end of the capacitor C34 is connected to the power supply VDC, and the other end is connected to the capacitor C33; the other end of the capacitor C33 is connected to the signal ground SGND; one end of the resistor R4 is connected to pin 7 of the gate driver chip U3, and the other end is connected to the resistor R5; the other end of the resistor R5 is connected to pin 3 of the MOS transistor R3; one end of the resistor R16 is connected to pin 5 of the gate driver chip U3, and the other end is connected to the resistor R17; the other end of the resistor R17 is connected to pin 3 of the MOS transistor R14; the resistor R41 is in parallel with the capacitor C34; the resistor R40 is in parallel with the capacitor C33; one end of the resistor R34 is connected to the ground GND, and the other end is connected to pin 1 of the horn J11; the diode D5 is in parallel with the resistor R4; the diode D1 is in parallel with the resistor R16; the diode D2 is connected in parallel between pin 2 and pin 3 of the MOS transistor R3; the diode D7 is connected in parallel between pin 2 and pin 3 of the MOS transistor R14; pin 1 of the transformer T3 is connected to pin 3 of the MOS transistor R3, pin 2 is connected to the capacitor C34, pin 3 is connected to the ground GND, and pin 4 is connected to the inductor L5; the other end of the inductor L5 is connected to pin 2 of the horn J11; pin 1 of the MOS transistor R3 is connected to the resistor R4, and pin 3 is connected to pin 2 of the MOS transistor R14.

[0059] Meanwhile, this embodiment also provides a control method for an intelligent control system of ultrasonic waves, including the following steps: The user starts the ultrasonic waves by activating the human-machine interaction module. The control module receives the instruction issued by the human-machine interaction module, such as the horn parameter instruction. After obtaining the horn parameter data, the control module compares it with the built-in database to obtain the accurate voltage output range, and outputs an electrical signal to control the power output module to output the corresponding voltage range. In addition, after receiving the start instruction, the control module controls the signal output through the first circuit output module, and then adjusts the output frequency through the frequency tracking and safety protection module. The second circuit output module controls the horn output by controlling the output frequency. The resonant current signal of the frequency tracking and safety protection module is collected in real time through the current acquisition circuit module and input into the control module. At the same time, the temperature detection circuit module also inputs the temperature information into the control module and records it.

[0060] The control module analyzes and compares the collected information, measures the temperature of the liquid through the temperature sensor. When the detected current value exceeds the preset safety threshold, the control module immediately cuts off the power output module.

[0061] The working principle of the intelligent control method of ultrasonic waves is as follows: The RS-48 chip U14 of the human-machine interaction module receives the instruction of the horn parameter, and transmits it to the single-chip microcomputer U12 of the control module through an electrical signal. The single-chip microcomputer U12 issues an electrical signal to control the composite transistor array JP1 of the power output module to output a signal, and controls the relays K3, K5, K6, K8, K7, K12, and K11 to work together to output a voltage, which is input into the second circuit output module after filtering.

[0062] At the same time, the single-chip microcomputer U12 issues a voltage signal to control the output of the first circuit module. The first voltage circuit output module boosts the electrical signal to the 12V range and inputs it into the frequency tracking and safety protection module. After receiving the start signal, the CMOS phase-locked loop U7 of the frequency tracking and safety protection module outputs a frequency signal through its pin 3. The frequency signal is filtered and amplified, and then input into the gate drive chip U3 through the high-speed optocoupler U6. The gate drive chip U3 inputs the frequency signal into the second circuit output module respectively, controls the MOS transistors R3 and R14 of the second circuit output module to output, and changes the voltage signal output by the power output module into a high-frequency output signal to drive the horn to output.

[0063] The output signal inputs the feedback signal into pin 14 of the CMOS phase-locked loop U7 through the resistor R44. The CMOS phase-locked loop U7 Finally, by continuously adjusting the frequency of its voltage-controlled oscillator, the output signal of the voltage-controlled oscillator is synchronized with the frequency and phase of the input signal to achieve phase locking.

[0064] The current acquisition module acquires the output current and inputs the electrical signal into the single-chip microcomputer U12. At the same time, the temperature detection module also inputs the temperature information into the control module.

[0065] The control module analyzes and compares the collected information, measures the temperature of the liquid through the temperature sensor, and then controls the output time. When the detected current value exceeds the preset safety threshold, the control module immediately cuts off the power output module and triggers a three-level protection mechanism.

Claims

1. An ultrasonic intelligent control system, characterized in that: The system includes a human-computer interaction module, a control module, a temperature detection circuit module, a current acquisition circuit module, a power output module, a first circuit output module, a frequency tracking and safety protection module, and a second circuit output module; The control module is used to receive the electrical signals output by the human-computer interaction module, the current acquisition module and the temperature detection module. The output end of the control module is connected to the power output module, thereby controlling the power output module to output a controllable voltage signal. The electrical signal output by the power output module is connected to the second circuit output module. At the same time, the electrical signal output by the control module is transmitted to the frequency tracking and safety protection module through the first circuit output module. The frequency tracking and safety protection module outputs the frequency signal to the current acquisition module through the second circuit output module. The current acquisition module inputs the collected current signal to the control module.

2. An ultrasonic intelligent control system according to claim 1, characterized in that: The temperature detection circuit module obtains a set of voltage signals by dividing the voltage of the resistor R33 and the resistor R31, and then connects to the positive end of the operational amplifier U11.

1. The temperature sensor is connected by the terminal J8, and then connected to the negative end of the operational amplifier U11.1 after forming a voltage divider circuit with the resistor R32. After the signal is amplified by the resistor R27, it is connected to the single-chip computer U12 of the control module to obtain the temperature signal; The temperature detection circuit module includes a resistor R33, a resistor R31, a resistor R32, a resistor R27, a capacitor C28, a capacitor C27, an operational amplifier U11.1, and a connection terminal J8.

3. The ultrasonic intelligent control system according to claim 1, characterized in that: The current acquisition circuit module includes a precision current transformer U13, a resistor R35, a resistor R34, a capacitor C30, and a diode D11; The precision current transformer U13 receives the electrical signal from the second circuit output module and outputs a current signal, which is then passed through the resistor R35 to obtain a voltage signal, which is then rectified and filtered by the diode D11 and the capacitor C29 and connected to the microcontroller U12 of the control module to obtain the current signal.

4. The ultrasonic intelligent control system according to claim 1, characterized in that: The human-computer interaction module includes a capacitor C31, an RS-48 chip U14, a resistor R129, a resistor R130, a resistor R131, and a terminal J12; Pin 1 of the RS-48 chip U14 is connected to pin 1 of the single-chip microcomputer U12 of the control module, pins 2 and 3 are connected to pin 3 of the single-chip microcomputer U12 of the control module, and pin 4 is connected to pin 2 of the single-chip microcomputer U12 of the control module, and then the human-computer interaction module transmits the signal to the control module through the RS-48 chip U14.

5. The ultrasonic intelligent control system according to claim 1, characterized in that: The power output module includes a composite transistor array JP1, a capacitor C32, a capacitor C6, an inductor L1, a bridge stack D10 and 7 relays connected in series; The electrical connection between the composite transistor array JP1 and the single chip microcomputer U12 of the control module; The control module increases the output signal to 24V through the composite transistor array JP1 of the power output module, and the control signal is connected to the relay to finally form a controllable output voltage of 1-128V. The output voltage signal is filtered by capacitor C6 and then input into the second circuit output module.

6. The ultrasonic intelligent control system according to claim 1, characterized in that: The first circuit output module includes a resistor R36, a resistor R37, a resistor R38, and a transistor Q5; The signal output by the control module passes through the transistor Q5 of the first circuit output module, the voltage is increased to 12V, and then the signal is input to the frequency tracking and safety protection module; Pin 3 of the transistor Q5 is connected to pin 5 of the CMOS phase-locked loop integrated circuit U7 of the frequency tracking and safety protection module.

7. The ultrasonic intelligent control system according to claim 1, characterized in that: The control module includes capacitor C29, capacitor E3, single-chip microcomputer U12, and wiring terminal J10; pin 1 of the wiring terminal J10 is connected to the power supply VCC, pin 2 is connected to pin 18 of the single-chip microcomputer U12, pin 3 is connected to pin 19 of the single-chip microcomputer U12, and pin 4 is connected to ground; one end of the capacitor C29 is connected to the power supply VCC, and the other end is grounded; the capacitor E3 is connected in parallel with the capacitor C29.

8. The ultrasonic intelligent control system according to claim 1, characterized in that: The frequency tracking and safety protection module includes a potentiometer W1, a potentiometer W2, a transistor Q4, a transistor Q3, a transistor Q2, a diode D6, a gate drive chip U3, a high-speed optocoupler U6, a CMOS phase-locked loop U7 and a trigger U1; After the electrical signal output by the first circuit output module passes through the CMOS phase-locked loop U7 and trigger U1 of the frequency tracking and safety protection module, the output signal is connected to the gate drive chip U3 to drive the MOS tube output to achieve automatic frequency tracking and locking. The gate drive chip U3 inputs the frequency signal into the second circuit output module, controls the output of the MOS tubes R3 and R14 of the second circuit output module, and converts the voltage signal output by the power output module into a high-frequency output signal to drive the amplitude transformer output.

9. A control method for an ultrasonic intelligent control system according to claims 1 to 8, characterized in that: The steps include: The user starts the ultrasound by activating the human-computer interaction module; The human-computer interaction module receives the instruction and sends an electrical signal to the control module. The control module controls the power output module to output the corresponding voltage according to the received electrical signal, and inputs the voltage into the second circuit output module after filtering. At the same time, the electrical signal output by the control module is output to the frequency tracking and safety protection module through the first circuit output module, and then the output frequency is adjusted. The second circuit output module controls the output of the amplitude transformer through the output frequency. The current acquisition circuit module collects the current signal of the frequency tracking and safety protection module in real time and inputs it into the control module. At the same time, the temperature detection circuit module also inputs the temperature information into the control module and records it. The control module analyzes and compares the collected information, measures the temperature of the liquid by analyzing the temperature sensor, and when the detected current value exceeds the preset safety threshold, the control module immediately cuts off the power output module.

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