Intelligent ultrasonic acquisition guiding main control circuit and guiding device

Abstract

The utility model relates to the technical field of ultrasonic acquisition guiding, in particular to an intelligent ultrasonic acquisition guiding master control circuit and a guiding device. A power supply unit for providing + / -5V power supply voltage, + 3.3 V voltage-stabilized power supply, + 2.5 V voltage-stabilized power supply, + / -8.4 V power supply voltage and + 12V power supply voltage in the intelligent ultrasonic acquisition guide main control circuit is respectively in power supply connection with an analog-to-digital conversion unit, a digital-to-analog conversion unit, a motor driving unit and a main controller; a signal conditioning module in the signal conditioning and differential driving unit is sequentially connected with the preceding-stage driving unit, the analog-to-digital conversion unit and the main controller; the input end of the digital-to-analog conversion unit is connected with the main controller through an SPI bus, and the output end of the digital-to-analog conversion unit is connected with the buffer amplification unit; and the motor driving unit for providing accurate control is connected with the main controller. According to the utility model, based on the design of circuit structure in signal processing, the problem of insufficient recognition rate caused by noise is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic collection and guidance, in particular to an intelligent ultrasonic collection and guidance main control circuit and a guidance device. Background Art

[0002] As the world advances, medical equipment in primary care continues to evolve, but the corresponding operators remain inconsistent. For example, ultrasound diagnostic equipment, as it's traditionally used in today's medical field, requires specialized training. This is because the image acquisition process is complex, and improper operation can result in low image quality and inaccurate acquisition, compromising diagnostic effectiveness.

[0003] Traditional ultrasound equipment requires operators to operate it through a display, buttons, or touchscreen. Each fine-tuning operation is not intuitively reflected. Reducing fine-tuning can only be achieved through personal experience. This makes it very easy for subjective judgment to lead to operational errors during actual operation, thus affecting the doctor's diagnosis and the use of ultrasound diagnostic equipment. To address this issue, some intelligent operation schemes for voice control have been proposed in the prior art. However, the recognition rate is generally insufficient due to noise. Various solutions have been proposed in the prior art, such as head-mounted devices to reduce noise. However, this method is costly and not suitable for all ultrasound tests, and its applicability is limited.

[0004] Therefore, according to actual development needs, it is urgent to design a new type of intelligent ultrasound acquisition and guidance device, which can not only reduce the operation difficulty of primary medical personnel, but also improve the accuracy and efficiency of image acquisition to overcome the above technical problems. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects existing in the above-mentioned prior art, thereby providing an intelligent ultrasonic acquisition guidance main control circuit and guidance device.

[0006] An intelligent ultrasonic acquisition and guidance main control circuit includes: a power supply unit, an analog-to-digital conversion unit, a digital-to-analog conversion unit, a signal conditioning and differential drive unit, a motor drive unit, a buffer amplifier unit and a main controller;

[0007] A power supply unit for providing ±5V power supply voltage, +3.3V regulated power supply, +2.5V regulated power supply, ±8.4V power supply voltage and +12V power supply voltage is connected to the analog-to-digital conversion unit, the digital-to-analog conversion unit, the motor drive unit and the main controller respectively;

[0008] The signal conditioning module in the signal conditioning and differential driving unit is connected in sequence with the pre-stage driving unit, the analog-to-digital conversion unit and the main controller;

[0009] The input end of the digital-to-analog conversion unit is connected to the main controller via the SPI bus, and the output end of the digital-to-analog conversion unit is connected to the buffer amplifier unit;

[0010] The motor drive unit for providing precise control is connected to the main controller.

[0011] Preferably, the power supply unit includes a first boost unit, a second boost unit, a first linear regulator, a second linear regulator, a first low voltage difference regulator unit, a second low voltage difference regulator unit and a power reference unit;

[0012] A first boost unit for outputting a ±8.4V power supply voltage is connected to a first linear voltage regulator so that the first linear voltage regulator outputs a +5V power supply voltage; and further, the first linear voltage regulator and the first boost unit are both connected to a second linear voltage regulator so that the input end of the second linear voltage regulator is a -8.4V power supply voltage and the output end is a -5V power supply voltage, and further connected to an analog-to-digital conversion unit and a digital-to-analog conversion unit to achieve power supply;

[0013] A second boost unit for outputting a +12V power supply voltage is connected to the motor drive unit for power supply;

[0014] A first low voltage difference voltage stabilizing unit for providing a +2.5V regulated power supply is connected to the analog-to-digital conversion unit and the digital-to-analog conversion unit regulated power supply;

[0015] A second low voltage difference voltage stabilizing unit for providing a +3.3V regulated power supply is connected to the analog-to-digital conversion unit, the digital-to-analog conversion unit and the main controller regulated power supply;

[0016] The power supply input end of the power reference unit is connected to the main controller, and the power supply output end is connected to a two-stage operational amplifier to achieve connection with a +8.4V power supply voltage, a +5V power supply voltage and a +2.5V regulated power supply;

[0017] The input voltages of the first low voltage difference stabilizing unit, the second low voltage difference stabilizing unit and the second boosting unit are all 3.7V; the input voltage of the first boosting unit is 4V.

[0018] Preferably, the signal conditioning module includes: an AD8639 chip, a resistor divider network, a first parallel capacitor component, a second inductor, a second parallel capacitor component and a third inductor;

[0019] The power pin on one side of the AD8639 chip is connected to one end of the first parallel capacitor component; at the same time, the power pin on one side of the AD8639 chip is also connected to the second inductor and the VCC pin of the main controller in sequence;

[0020] The + input pin of the AD8639 chip is connected to the other end of the first parallel capacitor component and grounded;

[0021] The power pin on the other side of the AD8639 chip is connected to one end of the second parallel capacitor component; at the same time, the power pin on the other side of the AD8639 chip is also connected to the third inductor and the VEE pin of the main controller in sequence;

[0022] The - input pin of the AD8639 chip is connected to the resistor divider network and then to the pre-stage drive unit;

[0023] The output pin of the AD8639 chip is connected to the common connection point of the resistors of the resistor divider network.

[0024] Preferably, the buffer amplifier unit includes a first TL072 amplifier unit, a second TL072 amplifier unit, a triode combination circuit and an audio amplifier circuit;

[0025] The output pin of the digital-to-analog conversion unit is connected to the first TL072 amplifying unit, the second TL072 amplifying unit, the triode combination circuit and the audio amplifying circuit in sequence.

[0026] Preferably, the triode combination circuit is a symmetrical structure, comprising: a first pair of triode circuits, a second pair of triode circuits and a third pair of triode circuits;

[0027] The first pair of triode circuits is connected to the output end of the second TL072 amplifier unit, and the bases of the two triodes in the first pair of triode circuits are connected, and the collectors of the two triodes are connected and grounded;

[0028] The collectors of the two transistors in the second pair of transistor circuits are respectively connected to the emitters of the two transistors in the first pair of transistor circuits; at the same time, the bases of the two transistors in the second pair of transistor circuits are connected through a 10 kilo-ohm resistor and are respectively connected to the main controller; the emitters of the two transistors in the second pair of transistor circuits are respectively connected to the collectors of the two transistors in the third pair of transistor circuits and are grounded;

[0029] The bases of the two transistors in the third pair of transistor circuits are respectively connected to the emitters of the two transistors in the first pair of transistor circuits; the emitters of the two transistors in the third pair of transistor circuits are connected.

[0030] Preferably, the motor drive unit is composed of an H-bridge circuit consisting of a drive unit and a transistor;

[0031] Among them, the two transistors of any one path of the H bridge are connected through a diode, and the positive terminal of the diode is connected to the drive unit and a double diode, so that the two paths of the H bridge are connected through the two double diodes and two 100 ohm resistors;

[0032] The base of the transistor connected to the negative terminal of the diode in any path of the H bridge is connected to the DRV2± driving signal of the driving unit; and the DRV2± driving signal is connected to the input end of the driving unit through a connector.

[0033] Preferably, the 4V voltage, the +8.4V power supply voltage, the +5V power supply voltage and the -5V power supply voltage are all connected to the same interface, and the ground pin of the interface is grounded.

[0034] An intelligent ultrasound acquisition and guidance device includes a human-computer interaction module, a local processing mainboard integrated with an intelligent ultrasound acquisition and guidance main control circuit, and a handheld ultrasound probe and a cloud server wirelessly connected to the local processing mainboard.

[0035] The human-computer interaction module is electrically connected to the local processing mainboard to display human-computer interaction information.

[0036] The technical solution of this utility model has the following advantages:

[0037] The principle of this utility model is simple, and the structural design is ingeniously adapted to the application of ultrasonic acquisition. The design of signal processing based on the circuit structure overcomes the problem of insufficient recognition rate caused by noise, so that the device used for ultrasonic acquisition does not need to be designed with a wearable structure, and only a handheld ultrasonic probe needs to be operated in actual application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 This is a circuit structure diagram of an intelligent ultrasonic acquisition and guidance main control circuit when the utility model is applied;

[0040] Figure 2 This is a schematic diagram of the connection relationship between the signal conditioning module and the pre-stage driving unit in the present utility model;

[0041] Figure 3 This is the H-bridge circuit structure diagram of the utility model;

[0042] Figure 4 This is a schematic diagram of the triode combination circuit structure in the utility model. DETAILED DESCRIPTION

[0043] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0046] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] Example 1

[0048] This embodiment discloses an intelligent ultrasound acquisition guidance main control circuit, such as Figure 1 It includes: a power supply unit, an analog-to-digital conversion unit, a digital-to-analog conversion unit, a signal conditioning and differential drive unit, a motor drive unit, a buffer amplifier unit and a main controller; in actual application, it also includes a microphone and a speaker; the microphone is connected to the signal conditioning and differential drive unit; the speaker is connected to the buffer amplifier unit.

[0049] Specifically:

[0050] A power supply unit for providing ±5V power supply voltage, +3.3V regulated power supply, +2.5V regulated power supply, ±8.4V power supply voltage and +12V power supply voltage is connected to the analog-to-digital conversion unit, the digital-to-analog conversion unit, the motor drive unit and the main controller respectively;

[0051] The signal conditioning module in the signal conditioning and differential driving unit is connected in sequence with the pre-stage driving unit, the analog-to-digital conversion unit and the main controller;

[0052] The input end of the digital-to-analog conversion unit is connected to the main controller via the SPI bus, and the output end of the digital-to-analog conversion unit is connected to the buffer amplifier unit;

[0053] The motor drive unit for providing precise control is connected to the main controller.

[0054] In this embodiment, the power supply unit includes a first boost unit, a second boost unit, a first linear regulator, a second linear regulator, a first low voltage difference regulator unit, a second low voltage difference regulator unit and a power reference unit;

[0055] like Figure 2 A first boost unit for outputting a ±8.4V power supply voltage is connected to a first linear voltage regulator so that the first linear voltage regulator outputs a +5V power supply voltage; the first linear voltage regulator and the first boost unit are both connected to a second linear voltage regulator so that an input end of the second linear voltage regulator is a -8.4V power supply voltage and an output end thereof is a -5V power supply voltage, and the second linear voltage regulator is further connected to an analog-to-digital conversion unit and a digital-to-analog conversion unit to realize power supply;

[0056] A second boost unit for outputting a +12V power supply voltage is connected to the motor drive unit for power supply;

[0057] A first low voltage difference voltage stabilizing unit for providing a +2.5V regulated power supply is connected to the analog-to-digital conversion unit and the digital-to-analog conversion unit regulated power supply;

[0058] A second low voltage difference voltage stabilizing unit for providing a +3.3V regulated power supply is connected to the analog-to-digital conversion unit, the digital-to-analog conversion unit and the main controller regulated power supply;

[0059] The power supply input end of the power reference unit is connected to the main controller, and the power supply output end is connected to a two-stage operational amplifier to achieve connection with a +8.4V power supply voltage, a +5V power supply voltage and a +2.5V regulated power supply;

[0060] The input voltages of the first low voltage difference stabilizing unit, the second low voltage difference stabilizing unit and the second boosting unit are all 3.7V; the input voltage of the first boosting unit is 4V.

[0061] In this embodiment, the signal conditioning module includes: an AD8639 chip, a resistor divider network, a first parallel capacitor component, a second inductor, a second parallel capacitor component, and a third inductor;

[0062] The power pin on one side of the AD8639 chip is connected to one end of the first parallel capacitor component; at the same time, the power pin on one side of the AD8639 chip is also connected to the second inductor and the VCC pin of the main controller in sequence;

[0063] The + input pin of the AD8639 chip is connected to the other end of the first parallel capacitor component and grounded;

[0064] The power pin on the other side of the AD8639 chip is connected to one end of the second parallel capacitor component; at the same time, the power pin on the other side of the AD8639 chip is also connected to the third inductor and the VEE pin of the main controller in sequence;

[0065] The - input pin of the AD8639 chip is connected to the resistor divider network and then to the pre-stage drive unit;

[0066] The output pin of the AD8639 chip is connected to the common connection point of the resistors in the resistor divider network. Figure 2 As shown in the figure, the second inductor is L2, the third inductor is L3, and both are 3.3μH; the first parallel capacitor component is composed of capacitors C14 and C15 in parallel; the second parallel capacitor component is composed of capacitors C19 and C21 in parallel.

[0067] In this embodiment, the pre-stage driving unit includes: a THS4521 chip, a plurality of capacitors and resistors;

[0068] like Figure 2 As shown in the figure, the VIN- pin of the THS4521 chip is connected to the - input pin of the AD8639 chip through the series resistors R25 and R16. At the same time, the VIN- pin of the THS4521 chip is connected to the VOUT+ signal through the resistor R26. The resistor R26 is 1 kilo-ohm. The resistor R25 is 2 kilo-ohm. The VIN+ pin of the THS4521 chip is grounded through the resistor R8. At the same time, the VIN+ pin of the THS4521 chip is connected to the +5V power supply voltage through the resistor R9.

[0069] The V+ pin of the THS4521 chip is connected to ground through capacitor C18;

[0070] The V-pin of the THS4521 chip and The pins are movably connected through resistor R4; in actual preparation, resistor R4 is not soldered.

[0071] The Vb- and Vb+ pins inside the THS4521 chip are connected to the Vout- and Vout+ signals, respectively, and are further connected to the analog-to-digital conversion unit after current limiting via resistors R19 and R22. Resistors R19 and R22 are connected in parallel via two capacitors C22 and C25, and then grounded.

[0072] The Vocm pin inside the THS4521 chip outputs a 2.5V voltage and is grounded through capacitor C30.

[0073] In this embodiment, the buffer amplifier unit includes a first TL072 amplifier unit, a second TL072 amplifier unit, a triode combination circuit and an audio amplifier circuit;

[0074] The output pin of the digital-to-analog conversion unit is connected to the first TL072 amplifying unit, the second TL072 amplifying unit, the triode combination circuit and the audio amplifying circuit in sequence.

[0075] like Figure 4 The triode combination circuit is a symmetrical structure, comprising: a first pair of triode circuits, a second pair of triode circuits and a third pair of triode circuits;

[0076] A first pair of transistor circuits is connected to the output end of the second TL072 amplifier unit, and the bases of the two transistors in the first pair of transistor circuits are connected, and the collectors of the two transistors are connected and grounded. Specifically, the two transistors in the first pair of transistor circuits are transistor Q3 and transistor Q4. The collectors of transistor Q3 and transistor Q4 are connected in parallel to ground via capacitors C28 and C42.

[0077] The collectors of the two transistors in the second pair of transistor circuits are respectively connected to the emitters of the two transistors in the first pair of transistor circuits. Specifically, the two transistors in the second pair of transistor circuits are transistor Q1 and transistor Q6. The collector of transistor Q1 and the emitter of transistor Q3 are connected via resistor R10. The collector of transistor Q6 and the emitter of transistor Q4 are connected via resistor R14.

[0078] At the same time, the bases of the two transistors in the second pair of transistors are connected through a 10 kilo-ohm resistor R13, and are connected to the VCC pin and VEE pin of the main controller through dual diodes DD1 and DD4 respectively; the emitters of the two transistors in the second pair of transistors are connected to the collectors of the two transistors in the third pair of transistors and are grounded.

[0079] The bases of the two transistors in the third pair of transistors are connected to the emitters of the two transistors in the first pair of transistors; the emitters of the two transistors in the third pair of transistors are connected. Specifically: Figure 4 The two transistors in the third pair of transistors are transistor Q2 and transistor Q5; the common connection end of transistor Q2, resistor R10 and transistor Q1 is connected to the common connection end of transistor Q5, resistor R14 and transistor Q6 via capacitor C29;

[0080] The collector of transistor Q5 is connected to the VEE pin of the main controller, and is further connected to the emitter of transistor Q6 through resistor R18 and parallel capacitors C43 and C44 to ground;

[0081] Similarly, the collector of transistor Q2 is connected to the VCC pin of the main controller, and is further connected to the emitter of transistor Q1 through resistor R7 and parallel capacitors C20 and C26 to ground.

[0082] The motor drive unit consists of an H-bridge circuit consisting of a drive unit and a transistor;

[0083] Among them, the two transistors of any one path of the H bridge are connected through a diode, and the positive end of the diode is connected to the drive unit and a double diode, so that the two paths of the H bridge are connected through two double diodes and two 100 ohm resistors; the base of the transistor connected to the negative end of the diode in any one path of the H bridge is connected to the DRV2± drive signal of the drive unit; and the DRV2± drive signal is connected to the input end of the drive unit through a connector. Figure 3 As shown, specifically: the H-bridge circuit includes 4 transistors, two diodes, two double diodes, multiple capacitors and resistors;

[0084] The H-bridge circuit has a symmetrical structure, so one of them is used as an example for description: the collector of transistor Q7 is connected to the +12V power supply voltage; the base of transistor Q7 is connected to the +12V power supply voltage through resistor R21, and further connected to the DRV2+ drive signal through transistor Q9; the emitter of transistor Q7 is connected to the common terminal of the dual diode DD5; and the common connection point of transistor Q7, diode D5 and dual diode DD5 is MOTO2+;

[0085] The collector of transistor Q9 is connected to one of the output terminals of the dual diode DD5, and the emitter of transistor Q9 is grounded. The DRV2+ drive signal drives the base of transistor Q9 through a 100-ohm resistor R28. A 10k-ohm pull-down resistor R38 is connected in parallel between the base and emitter of transistor Q9 for bias stabilization. Similarly, based on the symmetrical setup, the other path of the H-bridge circuit is connected to the DRV2- drive signal, and the common connection point in this other path is MOTO2-, thus connecting the transistors, diodes, and dual diodes in this other path.

[0086] The 4V voltage, the +8.4V power supply voltage, the +5V power supply voltage and the -5V power supply voltage are all connected to the same interface, and the ground pin of the interface is grounded.

[0087] Example 2

[0088] An intelligent ultrasound acquisition and guidance device includes a human-computer interaction module, a local processing mainboard integrated with an intelligent ultrasound acquisition and guidance main control circuit according to Example 1, and a handheld ultrasound probe and a cloud server wirelessly connected to the local processing mainboard.

[0089] The human-computer interaction module is electrically connected to the local processing mainboard to display human-computer interaction information.

[0090] It should be noted that in actual application:

[0091] The intelligent ultrasound acquisition guidance device is turned on, and the human-computer interaction module displays options for tissues or organs that can provide guidance. After the user selects the tissue or organ to be examined and confirms it, the human-computer interaction module interface displays the approximate location of the tissue or organ in the human body based on medical knowledge. The speaker based on the local processing motherboard issues a voice prompt, allowing the user to use the handheld ultrasound probe to acquire ultrasound images of the tissue or organ to be examined.

[0092] The collected original ultrasound images are wirelessly transmitted to the local processing motherboard, which further transmits the original ultrasound images to the cloud server;

[0093] The cloud server processes the original ultrasound image and transmits the processed guidance information and ultrasound image back to the local processing motherboard;

[0094] The local processing main board superimposes the target organ information on the original ultrasound image and displays it on the human-computer interaction module, and provides voice guidance information. The user can adjust the position of the handheld ultrasound probe based on the final image and voice information provided by the human-computer interaction module until the cloud server returns the information that the collected image is qualified. The human-computer interaction module gives a voice prompt whether to choose to save the image. The user confirms to save and finally obtains the qualified ultrasound image of the target tissue or organ autonomously for the doctor to make subsequent diagnosis.

[0095] Example 3

[0096] This embodiment discloses a storage medium storing program instructions. When the program instructions are run, any instruction of the embodiment 2 in actual application is executed.

[0097] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An intelligent ultrasonic acquisition and guidance main control circuit, characterized in that: include: Power supply unit, analog-to-digital conversion unit, digital-to-analog conversion unit, signal conditioning and differential drive unit, motor drive unit, buffer amplifier unit and main controller; A power supply unit for providing ±5V power supply voltage, +3.3V regulated power supply, +2.5V regulated power supply, ±8.4V power supply voltage and +12V power supply voltage is connected to the analog-to-digital conversion unit, the digital-to-analog conversion unit, the motor drive unit and the main controller respectively; The signal conditioning module in the signal conditioning and differential driving unit is connected in sequence with the pre-stage driving unit, the analog-to-digital conversion unit and the main controller; The input end of the digital-to-analog conversion unit is connected to the main controller via the SPI bus, and the output end of the digital-to-analog conversion unit is connected to the buffer amplifier unit; The motor drive unit for providing precise control is connected to the main controller.

2. The intelligent ultrasonic acquisition and guidance main control circuit according to claim 1, characterized in that: The power supply unit includes a first boost unit, a second boost unit, a first linear regulator, a second linear regulator, a first low voltage difference regulator unit, a second low voltage difference regulator unit and a power reference unit; A first boost unit for outputting a ±8.4V power supply voltage is connected to a first linear voltage regulator so that the first linear voltage regulator outputs a +5V power supply voltage; and further, the first linear voltage regulator and the first boost unit are both connected to a second linear voltage regulator so that the input end of the second linear voltage regulator is a -8.4V power supply voltage and the output end is a -5V power supply voltage, and further connected to an analog-to-digital conversion unit and a digital-to-analog conversion unit to achieve power supply; A second boost unit for outputting a +12V power supply voltage is connected to the motor drive unit for power supply; A first low voltage difference voltage stabilizing unit for providing a +2.5V regulated power supply is connected to the analog-to-digital conversion unit and the digital-to-analog conversion unit regulated power supply; A second low voltage difference voltage stabilizing unit for providing a +3.3V regulated power supply is connected to the analog-to-digital conversion unit, the digital-to-analog conversion unit and the main controller regulated power supply; The power supply input end of the power reference unit is connected to the main controller, and the power supply output end is connected to a two-stage operational amplifier to achieve connection with a +8.4V power supply voltage, a +5V power supply voltage and a +2.5V regulated power supply; The input voltages of the first low voltage difference stabilizing unit, the second low voltage difference stabilizing unit and the second boosting unit are all 3.7V; the input voltage of the first boosting unit is 4V.

3. The intelligent ultrasonic acquisition and guidance main control circuit according to claim 1, characterized in that: The signal conditioning module includes: an AD8639 chip, a resistor divider network, a first parallel capacitor component, a second inductor, a second parallel capacitor component and a third inductor; The power pin on one side of the AD8639 chip is connected to one end of the first parallel capacitor component; at the same time, the power pin on one side of the AD8639 chip is also connected to the second inductor and the VCC pin of the main controller in sequence; The + input pin of the AD8639 chip is connected to the other end of the first parallel capacitor component and grounded; The power pin on the other side of the AD8639 chip is connected to one end of the second parallel capacitor component; at the same time, the power pin on the other side of the AD8639 chip is also connected to the third inductor and the VEE pin of the main controller in sequence; The - input pin of the AD8639 chip is connected to the resistor divider network and then to the pre-stage drive unit; The output pin of the AD8639 chip is connected to the common connection point of the resistors of the resistor divider network.

4. The intelligent ultrasonic acquisition and guidance main control circuit according to claim 1, characterized in that: The buffer amplifier unit includes a first TL072 amplifier unit, a second TL072 amplifier unit, a triode combination circuit and an audio amplifier circuit; The output pin of the digital-to-analog conversion unit is connected to the first TL072 amplifying unit, the second TL072 amplifying unit, the triode combination circuit and the audio amplifying circuit in sequence.

5. The intelligent ultrasonic acquisition and guidance main control circuit according to claim 4, characterized in that: The triode combination circuit is a symmetrical structure, comprising: a first pair of triode circuits, a second pair of triode circuits and a third pair of triode circuits; The first pair of triode circuits is connected to the output end of the second TL072 amplifier unit, and the bases of the two triodes in the first pair of triode circuits are connected, and the collectors of the two triodes are connected and grounded; The collectors of the two transistors in the second pair of transistor circuits are respectively connected to the emitters of the two transistors in the first pair of transistor circuits; at the same time, the bases of the two transistors in the second pair of transistor circuits are connected through a 10 kilo-ohm resistor and are respectively connected to the main controller; the emitters of the two transistors in the second pair of transistor circuits are respectively connected to the collectors of the two transistors in the third pair of transistor circuits and are grounded; The bases of the two transistors in the third pair of transistor circuits are respectively connected to the emitters of the two transistors in the first pair of transistor circuits; the emitters of the two transistors in the third pair of transistor circuits are connected.

6. The intelligent ultrasound acquisition and guidance main control circuit according to claim 1, characterized in that: The motor drive unit is composed of an H-bridge circuit consisting of a drive unit and a transistor; Among them, the two transistors of any one path of the H bridge are connected through a diode, and the positive terminal of the diode is connected to the drive unit and a double diode, so that the two paths of the H bridge are connected through the two double diodes and two 100 ohm resistors; The base of the transistor connected to the negative terminal of the diode in any path of the H bridge is connected to the DRV2± driving signal of the driving unit; and the DRV2± driving signal is connected to the input end of the driving unit through a connector.

7. The intelligent ultrasonic acquisition and guidance main control circuit according to claim 2, characterized in that: The 4V voltage, the +8.4V power supply voltage, the +5V power supply voltage and the -5V power supply voltage are all connected to the same interface, and the ground pin of the interface is grounded.

8. An intelligent ultrasound collection and guidance device, including a human-computer interaction module, characterized in that: It also includes a local processing mainboard integrated with an intelligent ultrasound acquisition and guidance main control circuit according to any one of claims 1 to 7, and a handheld ultrasound probe and a cloud server wirelessly connected to the local processing mainboard respectively; The human-computer interaction module is electrically connected to the local processing mainboard to display human-computer interaction information.

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