Voice grain moisture detection device, chip and electronic equipment

Abstract

The utility model provides a voice grain moisture detection device, a chip and electronic equipment. The voice grain moisture detection device comprises a microcontroller module, and a high-voltage driving detection module, a moisture detection module, a voice broadcast module and a display module which are respectively connected with the microcontroller module, wherein the first output end of the microcontroller module is connected with the input end of the high-voltage driving detection module, the output end of the high-voltage driving detection module is connected with the input end of the moisture detection module, the output end of the moisture detection module is connected with the input end of the microcontroller module, and the second output end of the microcontroller module is connected with the voice broadcast module. And a third output end of the microcontroller module is connected with the display module. Grain moisture detection is carried out in combination with a high-voltage driving technology, the sensitivity and accuracy of a detection result are effectively improved, the influence of variable environmental factors is avoided, meanwhile, a customized voice broadcast function is provided, voice pronunciation is more friendly, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of integrated circuit technology, and in particular, to a voice-based grain moisture detection device, a chip, and an electronic device. Background Art

[0002] In the fields of agriculture and grain processing, the accurate determination of the moisture content of grains is of crucial importance. Grain moisture meters are key tools to achieve this goal and have become indispensable instruments in agricultural production and grain processing. They are used to quickly and accurately measure the moisture content in grain samples, which is of great significance for evaluating grain quality, guiding storage conditions, and pricing.

[0003] After measuring the moisture content of grains, existing grain moisture meters mainly use a buzzer to give a prompt or simply display the detection status on an LED screen. However, these feedback methods are relatively primitive in terms of information transmission and user interaction. For example, the buzzer prompt method is rather blunt, lacking intuitiveness and friendliness, resulting in a poor user experience. In addition, under changing environmental conditions such as temperature and humidity changes, existing grain moisture meters may not be able to provide stable and accurate measurement results, leading to poor accuracy and sensitivity in grain moisture measurement.

[0004] The foregoing description is provided to give general background information and does not necessarily constitute prior art. Summary of the Utility Model

[0005] In view of this, this application provides a voice-based grain moisture detection device, a chip, and an electronic device to solve the defects of low accuracy, poor stability, and blunt voice prompts in existing grain moisture measurement technologies.

[0006] A voice-based grain moisture detection device provided by this application includes a microcontroller module, as well as a high-voltage drive detection module, a moisture detection module, a voice broadcast module, and a display module that are respectively connected to the microcontroller module. Among them, the first output end of the microcontroller module is connected to the input end of the high-voltage drive detection module, the output end of the high-voltage drive detection module is connected to the input end of the moisture detection module, the output end of the moisture detection module is connected to the input end of the microcontroller module, the second output end of the microcontroller module is connected to the voice broadcast module, and the third output end of the microcontroller module is connected to the display module.

[0007] Further, in some embodiments of the present application, the high-voltage drive detection module includes a transformer, a first capacitor, a second capacitor, a first diode, a second diode, a first triode, and a first resistor. Among them, the first end of the transformer is connected to the supply voltage, and the first end of the transformer is also connected to the first input end of the moisture detection module. The second end of the transformer is respectively connected to the positive electrode of the first diode and the negative electrode of the second diode. The negative electrode of the first diode is connected to one end of the first capacitor, and the negative electrode of the first diode is also connected to the second input end of the moisture detection module. The third end of the transformer is respectively connected to the other end of the first capacitor and one end of the second capacitor. The other end of the first capacitor is also connected to one end of the second capacitor. The other end of the second capacitor is connected to the positive electrode of the second diode, and the positive electrode of the second diode is also connected to the third input end of the moisture detection module. The fourth end of the transformer is connected to the collector of the first triode. The base of the first triode is connected to one end of the first resistor, and the other end of the first resistor is connected to the first output end of the microcontroller module.

[0008] Further, in some embodiments of the present application, the moisture detection module includes a measurement electrode, an operational amplifier, a third diode, a fourth diode, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor. Among them, the first end of the operational amplifier is respectively connected to one end of the second resistor, the negative electrode of the third diode, the positive electrode of the fourth diode, and one end of the measurement electrode. The other end of the second resistor is connected to one end of the third resistor. The other end of the measurement electrode is connected to one end of the fourth resistor. The other end of the fourth resistor is respectively connected to one end of the first capacitor in the high-voltage drive detection module and the negative electrode of the first diode. The second end of the operational amplifier is respectively connected to the positive electrode of the third diode, the negative electrode of the fourth diode, one end of the fifth resistor, and one end of the sixth resistor. One end of the fifth resistor is connected to one end of the sixth resistor. The second end of the operational amplifier is also connected to the other end of the second capacitor in the high-voltage drive detection module and the positive electrode of the second diode. The third end of the operational amplifier is respectively connected to the other end of the fifth resistor and one end of the first capacitor in the high-voltage drive detection module and the negative electrode of the first diode. The third end of the operational amplifier is also connected to the supply voltage. The fourth end of the operational amplifier is connected to the other end of the sixth resistor. The fifth end of the operational amplifier is respectively connected to the other end of the third resistor and the microcontroller module.

[0009] Further, in some embodiments of the present application, the voice broadcast module includes a voice chip, a speaker, a third capacitor, and a fourth capacitor. Among them, the first pin, the second pin, and the third pin of the voice chip are respectively connected to the microcontroller module. The fourth pin and the fifth pin of the voice chip are respectively connected to the speaker. The sixth terminal of the voice chip is respectively connected to one end of the third capacitor and one end of the fourth capacitor. The sixth terminal of the voice chip is also connected to a power supply voltage. The other end of the third capacitor is connected to the other end of the fourth capacitor.

[0010] Further, in some embodiments of the present application, the device further includes an interaction module, and the interaction module is respectively connected to the microcontroller module and the moisture detection module.

[0011] Further, in some embodiments of the present application, the interaction module includes a zero calibration unit, a calibration unit, and a measurement control unit. Among them, the first end of the zero calibration unit is connected to one end of the measurement electrode in the moisture detection module, and the second end of the zero calibration unit is connected to the other end of the measurement electrode in the moisture detection module. The calibration unit and the measurement control unit are respectively connected to the microcontroller module.

[0012] Further, in some embodiments of the present application, the device further includes a power supply module, and the power supply module is respectively connected to the high-voltage drive detection module, the microcontroller module, the voice broadcast module, and the display module.

[0013] Further, in some embodiments of the present application, the device further includes a data module, and the data module is respectively connected to the microcontroller module, the moisture detection module, the voice broadcast module, and the display module.

[0014] The present application also provides a chip, including the voice grain moisture detection device as described above.

[0015] The present application also provides an electronic device, including the voice grain moisture detection device as described above or the chip as described above.

[0016] Implementing the embodiments of the present application has the following beneficial effects:

[0017] As described above, a voice-based grain moisture detection device, a chip, and an electronic device provided by the present application. The voice-based grain moisture detection device includes a microcontroller module, and a high-voltage drive detection module, a moisture detection module, a voice broadcast module, and a display module that are respectively connected to the microcontroller module. Among them, the first output end of the microcontroller module is connected to the input end of the high-voltage drive detection module, the output end of the high-voltage drive detection module is connected to the input end of the moisture detection module, the output end of the moisture detection module is connected to the input end of the microcontroller module, the second output end of the microcontroller module is connected to the voice broadcast module, and the third output end of the microcontroller module is connected to the display module. By combining high-voltage drive technology for grain moisture detection, the present application effectively improves the sensitivity and accuracy of the detection results, avoids the situation where the prior art is easily affected by variable environmental factors, resulting in a decrease in accuracy and stability. At the same time, a customized voice broadcast function is provided, making the voice pronunciation more friendly, enhancing the user experience, and reducing the product cost. Description of the Drawings

[0018] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments that conform to the present application, and are used together with the specification to explain the principles of the present application. To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the voice-based grain moisture detection device provided by the embodiment of the present application;

[0020] Figure 2 It is a schematic circuit principle diagram of the high-voltage drive detection module and the moisture detection module provided by the embodiment of the present application;

[0021] Figure 3 It is a schematic circuit principle diagram of the microcontroller module and the voice broadcast module provided by the embodiment of the present application.

[0022] Illustration: 10 - microcontroller module; 20 - high-voltage drive detection module; 30 - moisture detection module; 40 - voice broadcast module; 50 - display module; R1 - first resistor; R2 - second resistor; R3 - third resistor; R4 - fourth resistor; R5 - fifth resistor; R6 - sixth resistor; C1 - first capacitor; C2 - second capacitor; C3 - third capacitor; C4 - fourth capacitor; U1 - operational amplifier; U2 - voice chip; D1 - first diode; D2 - second diode; D3 - third diode; D4 - fourth diode; D5 - fifth diode; T1 - transformer; Q1 - first triode.

[0023] The realization, functional features and advantages of the present application will be further described in conjunction with embodiments with reference to the accompanying drawings. Through the above-mentioned accompanying drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiments

[0024] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0025] It should be noted that in this document, the terms "including", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined based on their explanations in the specific embodiments or further in combination with the context of the specific embodiments.

[0026] It should be understood that the specific embodiments described herein are merely used to explain the present application and are not used to limit the present application.

[0027] In subsequent descriptions, suffixes such as "module", "component" or "unit" used to represent elements are only for the convenience of description of the present application, and they have no specific meaning in themselves. Therefore, "module", "component" or "unit" can be used interchangeably.

[0028] In the fields of agriculture and food processing, the accurate determination of the moisture content of grains is crucial. Grain moisture meters are key tools to achieve this goal and have become indispensable instruments in agricultural production and food processing. However, existing grain moisture meters are easily affected by external environmental factors, resulting in poor accuracy of moisture detection. After the moisture detection is completed, buzzers are used for voice prompts in the prior art, and the interaction method is rather rigid, affecting the user experience.

[0029] To solve the above technical problems, an embodiment of the present application provides a voice grain moisture detection device, a chip and an electronic device. By combining high-voltage drive technology for grain moisture detection, the sensitivity and accuracy of the detection results are effectively improved, and the influence of variable environmental factors is avoided. At the same time, a customized voice broadcast function is provided, making the voice pronunciation more friendly and enhancing the user experience.

[0030] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a voice grain moisture detection device provided by an embodiment of the present application.

[0031] As Figure 1 shown, in this embodiment, a voice grain moisture detection device is provided, including a microcontroller module 10, and a high-voltage drive detection module 20, a moisture detection module 30, a voice broadcast module 40 and a display module 50 respectively connected to the microcontroller module 10; wherein, the first output end of the microcontroller module 10 is connected to the input end of the high-voltage drive detection module 20, the output end of the high-voltage drive detection module 20 is connected to the input end of the moisture detection module 30, the output end of the moisture detection module 30 is connected to the input end of the microcontroller module 10, the second output end of the microcontroller module 10 is connected to the voice broadcast module 40, and the third output end of the microcontroller module 10 is connected to the display module 50.

[0032] Specifically, the voice grain moisture detection device provided in this embodiment includes a microcontroller module 10, and a high-voltage drive detection module 20, a moisture detection module 30, a voice broadcast module 40 and a display module 50 respectively connected to the microcontroller module 10. In the specific implementation process, the microcontroller module 10 controls the high-voltage drive detection module 20 to boost the voltage, so as to insert the test electrode into the measured substance under high-voltage conditions. When there is moisture in the substance, current flows through the test electrode. Then, the moisture detection module 30 detects the moisture of the measured substance, converts the detected signal into an analog voltage signal and a reference analog signal together, and inputs them into the microcontroller module 10. The microcontroller module 10 obtains the moisture content through internal program comparison and conversion, outputs the moisture content to the display module 50 for display, and performs voice broadcast through UART communication to the voice broadcast module 40WT588F02B-8S.

[0033] This embodiment combines high-voltage drive technology for grain moisture detection, effectively improves the sensitivity and accuracy of the detection results, and at the same time provides a customized voice broadcast function, making the voice pronunciation more friendly, enhancing the user experience and reducing the product cost.

[0034] Furthermore, in some embodiments, such as Figure 2As shown, the high-voltage drive detection module 20 in this embodiment may specifically include a transformer T1, a first capacitor C1, a second capacitor C2, a first diode D1, a second diode D2, a first triode Q1, and a first resistor R1. Among them, the first end of the transformer T1 is connected to the power supply voltage, and the first end of the transformer T1 is also connected to the first input end of the moisture detection module 30. The second end of the transformer T1 is respectively connected to the positive electrode of the first diode D1 and the negative electrode of the second diode D2. The negative electrode of the first diode D1 is connected to one end of the first capacitor C1, and the negative electrode of the first diode D1 is also connected to the second input end of the moisture detection module 30. The third end of the transformer T1 is respectively connected to the other end of the first capacitor C1 and one end of the second capacitor C2. The other end of the first capacitor C1 is also connected to one end of the second capacitor C2. The other end of the second capacitor C2 is connected to the positive electrode of the second diode D2, and the positive electrode of the second diode D2 is also connected to the third input end of the moisture detection module 30. The fourth end of the transformer T1 is connected to the collector of the first triode Q1. The base of the first triode Q1 is connected to one end of the first resistor R1, and the other end of the first resistor R1 is connected to the first output end of the microcontroller module 10.

[0035] When powered on in this embodiment, the microcontroller module 10 outputs a PWM pulse signal to drive the high-voltage drive detection module 20, so that the high-voltage drive detection module 20 generates a high voltage in the secondary coil through the mutual induction of the primary coil by the triode switch, and then generates a high voltage output that is twice the secondary coil voltage through a voltage-doubling rectifier circuit to provide high-voltage detection conditions, avoiding the inaccurate moisture detection caused by the lack of high-voltage drive detection in the prior art.

[0036] Further, in some embodiments, such as Figure 2As shown in the figure, the moisture detection module 30 in this embodiment may specifically include a measurement electrode, an operational amplifier U1, a third diode D3, a fourth diode D4, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6. Among them, the first terminal of the operational amplifier U1 is respectively connected to one end of the second resistor R2, the cathode of the third diode D3, the anode of the fourth diode D4, and one end of the measurement electrode. The other end of the second resistor R2 is connected to one end of the third resistor R3. The other end of the measurement electrode is connected to one end of the fourth resistor R4. The other end of the fourth resistor R4 is respectively connected to one end of the first capacitor C1 in the high-voltage drive detection module 20 and the cathode of the first diode D1. The second terminal of the operational amplifier U1 is respectively connected to the anode of the third diode D3, the cathode of the fourth diode D4, one end of the fifth resistor R5, and one end of the sixth resistor R6. One end of the fifth resistor R5 is connected to one end of the sixth resistor R6. The second terminal of the operational amplifier U1 is also connected to the other end of the second capacitor C2 in the high-voltage drive detection module 20 and the anode of the second diode D2. The third terminal of the operational amplifier U1 is respectively connected to the other end of the fifth resistor R5 and one end of the first capacitor C1 in the high-voltage drive detection module 20 and the cathode of the first diode D1. The third terminal of the operational amplifier U1 is also connected to the supply voltage. The fourth terminal of the operational amplifier U1 is connected to the other end of the sixth resistor R6. The fifth terminal of the operational amplifier U1 is respectively connected to the other end of the third resistor R3 and the microcontroller module 10.

[0037] Among them, the second resistor R2 and the sixth resistor R6 of the moisture detection module 30 are variable resistors.

[0038] Further, in some embodiments, as Figure 3 shown, the voice broadcast module 40 in this embodiment may specifically include a voice chip U2, a speaker, a third capacitor C3, and a fourth capacitor C4. Among them, the first pin, the second pin, and the third pin of the voice chip U2 are respectively connected to the microcontroller module 10. The fourth pin and the fifth pin of the voice chip U2 are respectively connected to the speaker. The sixth terminal of the voice chip U2 is respectively connected to one end of the third capacitor C3 and one end of the fourth capacitor C4. The sixth terminal of the voice chip U2 is also connected to the supply voltage. The other end of the third capacitor C3 is connected to the other end of the fourth capacitor C4.

[0039] The voice broadcast module provided in this embodiment can perform user-customized voice broadcasts, avoiding the harsh situation of using a buzzer in the prior art. The voice prompt is more friendly, effectively improving the user experience.

[0040] Further, in some embodiments, the voice grain moisture detection device may specifically further include an interaction module, and the interaction module is respectively connected to the microcontroller module and the moisture detection module.

[0041] Further, in some embodiments, the interaction module may specifically include a zero calibration unit, a calibration unit, and a measurement control unit. Among them, the first end of the zero calibration unit is connected to one end of the measurement electrode in the moisture detection module, and the second end of the zero calibration unit is connected to the other end of the measurement electrode in the moisture detection module; the calibration unit and the measurement control unit are respectively connected to the microcontroller module.

[0042] Specifically, in this embodiment, the interaction module is respectively connected to the microcontroller module and the moisture detection module. The interaction module is composed of a zero calibration unit, a calibration unit, and a measurement control unit. Among them, the zero calibration unit includes a zero calibration button (SW1), the calibration unit includes a calibration button (KEY1), and the measurement control unit includes a measurement button (KEY2); users can perform operations such as zero calibration, calibration, and start measurement through the zero calibration unit, the calibration unit, and the measurement control unit.

[0043] The above buttons and keys are directly connected to the microcontroller module, and the microcontroller module recognizes and responds to the user's operations.

[0044] Further, in some embodiments, the voice grain moisture detection device may specifically further include a power supply module, and the power supply module is respectively connected to the high-voltage drive detection module, the microcontroller module, the voice broadcast module, and the display module.

[0045] Specifically, this embodiment also provides a power supply module for providing stable power for the entire voice grain moisture detection device and supplying power by connecting all modules in the voice grain moisture detection device. In addition, the voice grain moisture detection device in this embodiment may specifically further include a circuit protection module for protecting the circuit from abnormal conditions such as overload and short circuit.

[0046] Further, in some embodiments, the voice grain moisture detection device may specifically further include a data module, and the data module is respectively connected to the microcontroller module, the moisture detection module, the voice broadcast module, and the display module.

[0047] Specifically, the data module provided in this embodiment is also respectively connected to the microcontroller module, the moisture detection module, the voice broadcast module, and the display module. The data module can read or store the moisture detection data of the microcontroller module and transmit it to the voice broadcast module and the display module.

[0048] In addition, the data module can also be used to store historical test data and can transmit the test data to a small program or APP via Bluetooth, making the data interaction method more intuitive and facilitating the backtracking of historical test data.

[0049] To facilitate the understanding of the voice-based grain moisture detection device provided in this embodiment, the working process of the voice-based grain moisture detection device will be described in detail below. When starting to work, when powered on, the microcontroller module outputs a PWM pulse signal to the high-voltage drive detection module. The high-voltage drive detection module generates high voltage in the secondary coil through the mutual induction of the primary coil of the triode switch, and then generates a high voltage output that is twice the secondary coil voltage through a voltage doubler rectifier circuit; Manually press the zero calibration button SW1 and briefly press the calibration button KEY1 on the control panel to adjust the knob potentiometer RP1 to set an appropriate operational amplifier reference potential. When the display shows "Zero calibration OK", it is completed; After zero calibration, briefly press the measurement button KEY2 on the control panel to start the test process.

[0050] First, the high-voltage drive detection module forms a closed loop when it contacts the object to be measured in the high-voltage circuit, generates a small potential on the moisture detection module and compares it with the reference potential, and amplifies it through the operational amplifier and gives it to the ADC pin of the microcontroller module; The ADC software algorithm inside the microcontroller module obtains the analog quantity sent by the operational amplifier, calculates the humidity value through calculation, and transmits it to the voice broadcast module for voice broadcast, and also transmits it to the display module to display the value.

[0051] In summary, the voice-based grain moisture detection device provided in this embodiment combines high-voltage drive technology for grain moisture detection, effectively improving the sensitivity and accuracy of the detection results, avoiding the situation where the prior art is easily affected by variable environmental factors, resulting in a decrease in accuracy and stability. At the same time, it provides a customized voice broadcast function, making the voice pronunciation more friendly, enhancing the user experience, and reducing the product cost.

[0052] In other embodiments, a chip is also provided, including the voice-based grain moisture detection device as described above.

[0053] In other embodiments, an electronic device is also provided, including the voice-based grain moisture detection device or the chip as described above.

[0054] That is, the above description is only for the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the content of the specification and drawings of the present application, such as the mutual combination of technical features between embodiments, or direct or indirect application in other related technical fields, is similarly included in the patent protection scope of the present application.

[0055] In addition, for structural elements with the same or similar characteristics, the present application may use the same or different reference numerals for identification. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0056] In the present application, the phrase "for example" is used to mean "used as an example, illustration, or explanation". Any embodiment described in the present application as "for example" is not necessarily to be construed as more preferred or more advantageous than other embodiments. The above description is given to enable any person skilled in the art to implement and use the present application. In the above description, various details are set forth for purposes of explanation.

[0057] It should be understood that those of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other embodiments, well-known structures and processes will not be elaborated in detail so as not to obscure the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

Claims

1. A voice grain moisture detection device, characterized in that: It includes a microcontroller module, and a high-voltage drive detection module, a moisture detection module, a voice broadcast module and a display module respectively connected to the microcontroller module; wherein the first output end of the microcontroller module is connected to the input end of the high-voltage drive detection module, the output end of the high-voltage drive detection module is connected to the input end of the moisture detection module, the output end of the moisture detection module is connected to the input end of the microcontroller module, the second output end of the microcontroller module is connected to the voice broadcast module, and the third output end of the microcontroller module is connected to the display module.

2. The speech grain moisture detection device according to claim 1 is characterized in that: The high-voltage drive detection module includes a transformer, a first capacitor, a second capacitor, a first diode, a second diode, a first transistor and a first resistor, wherein the first end of the transformer is connected to the power supply voltage, the first end of the transformer is also connected to the first input end of the moisture detection module, the second end of the transformer is respectively connected to the positive electrode of the first diode and the negative electrode of the second diode, the negative electrode of the first diode is connected to one end of the first capacitor, the negative electrode of the first diode is also connected to the second input end of the moisture detection module, the third end of the transformer is respectively connected to the other end of the first capacitor and one end of the second capacitor, the other end of the first capacitor is also connected to one end of the second capacitor, the other end of the second capacitor is connected to the positive electrode of the second diode, the positive electrode of the second diode is also connected to the third input end of the moisture detection module, the fourth end of the transformer is connected to the collector of the first transistor, the base of the first transistor is connected to one end of the first resistor, and the other end of the first resistor is connected to the first output end of the microcontroller module.

3. The speech grain moisture detection device according to claim 2 is characterized in that: The moisture detection module includes a measuring electrode, an operational amplifier, a third diode, a fourth diode, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor, wherein the first end of the operational amplifier is respectively connected to one end of the second resistor, the cathode of the third diode, the anode of the fourth diode and one end of the measuring electrode, the other end of the second resistor is connected to one end of the third resistor, the other end of the measuring electrode is connected to one end of the fourth resistor, the other end of the fourth resistor is respectively connected to one end of the first capacitor in the high-voltage drive detection module and the cathode of the first diode, and the second end of the operational amplifier is respectively connected to the anode of the third diode. , the cathode of the fourth diode, one end of the fifth resistor and one end of the sixth resistor, one end of the fifth resistor is connected to one end of the sixth resistor, the second end of the operational amplifier is also connected to the other end of the second capacitor in the high-voltage drive detection module and the anode of the second diode, the third end of the operational amplifier is respectively connected to the other end of the fifth resistor and one end of the first capacitor in the high-voltage drive detection module and the cathode of the first diode, the third end of the operational amplifier is also connected to the power supply voltage, the fourth end of the operational amplifier is connected to the other end of the sixth resistor, and the fifth end of the operational amplifier is respectively connected to the other end of the third resistor and the microcontroller module.

4. The speech grain moisture detection device according to claim 1, characterized in that: The voice broadcast module includes a voice chip, a speaker, a third capacitor and a fourth capacitor, wherein the first pin, the second pin and the third pin of the voice chip are respectively connected to the microcontroller module, the fourth pin and the fifth pin of the voice chip are respectively connected to the speaker, the sixth end of the voice chip is respectively connected to one end of the third capacitor and one end of the fourth capacitor, the sixth end of the voice chip is also connected to the power supply voltage, and the other end of the third capacitor is connected to the other end of the fourth capacitor.

5. The speech grain moisture detection device according to claim 1, characterized in that: The device also includes an interaction module, which is connected to the microcontroller module and the moisture detection module respectively.

6. The speech grain moisture detection device according to claim 5 is characterized in that: The interactive module includes a zeroing unit, a calibration unit and a measurement control unit, wherein the first end of the zeroing unit is connected to one end of the measuring electrode in the moisture detection module, and the second end of the zeroing unit is connected to the other end of the measuring electrode in the moisture detection module; the calibration unit and the measurement control unit are respectively connected to the microcontroller module.

7. The speech grain moisture detection device according to claim 1 is characterized in that: The device also includes a power supply module, which is respectively connected to the high-voltage drive detection module, the microcontroller module, the voice broadcast module and the display module.

8. The speech grain moisture detection device according to claim 1 is characterized in that: The device also includes a data module, which is respectively connected to the microcontroller module, the moisture detection module, the voice broadcast module and the display module.

9. A chip, characterized in that: It comprises the voice grain moisture detection device as described in any one of claims 1-8.

10. An electronic device, characterized in that: It comprises the voice grain moisture detection device as described in any one of claims 1 to 8 or the chip as described in claim 9.

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