Power decay analysis circuit, method, and dental unit

Abstract

The application relates to the technical field of dental unit equipment, and discloses a power attenuation condition analysis circuit and method of a dental unit and the dental unit, the circuit comprising a main control module, a temperature detection module, a counting module, a timing module, a power attenuation judgment module and a signal output module, wherein: the temperature data of the dental unit is monitored through the temperature detection module, the effective sterilization count is completed based on the temperature data through the counting module, the use duration of the dental unit is collected through the timing module, and the power attenuation condition prompt signal of the dental unit is generated and output according to the total sterilization times of the dental unit and the total running duration of the dental unit. It can be seen that the power attenuation of the handle of the dental unit can be quantified through the integrated circuit, the accuracy and reliability of determining the power attenuation condition of the dental unit are improved, the working stability and use safety of the dental unit are effectively ensured, manual intervention and subjective estimation are not needed throughout the process, and the use convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of dental cleaning equipment technology, and in particular to a circuit, method, and dental cleaning machine for analyzing the power attenuation of a dental cleaning machine. Background Technology

[0002] As a core diagnostic and treatment device in dental clinics, the ultrasonic scaler's handle is the core working component, integrating an ultrasonic transducer that converts electrical energy into ultrasonic vibration mechanical energy to achieve functions such as tartar removal and periodontal treatment. According to dental instrument sterilization standards, the ultrasonic scaler handle must undergo high-temperature, high-pressure sterilization.

[0003] However, long-term use and repeated sterilization processes can lead to transducer aging and seal wear in ultrasonic scalers, resulting in power attenuation. This directly causes reduced scaling efficiency and incomplete water atomization. Unstable power can also damage tooth structure or the working tip, severely impacting treatment effectiveness and operational safety. Currently, existing ultrasonic scaler handpieces lack parameter recording and data storage capabilities. Healthcare professionals cannot accurately obtain core data such as the number of sterilization cycles and cumulative usage time. They can only roughly estimate power attenuation through subjective perception of vibration intensity and operational experience, leading to low accuracy and reliability. Therefore, proposing a technical solution to improve the accuracy and reliability of determining ultrasonic scaler power attenuation is crucial. Summary of the Invention

[0004] This invention provides a circuit, method, and dental scaler for analyzing power attenuation, which can help improve the accuracy and reliability of determining the power attenuation of the dental scaler.

[0005] To address the aforementioned technical problems, the first aspect of this invention discloses a power attenuation analysis circuit for a dental scaler. The circuit includes a main control module, a temperature detection module, a counting module, a timing module, a power attenuation judgment module, and a signal output module, wherein: The first end of the temperature detection module is electrically connected to the first end of the counting module, the second end of the counting module is electrically connected to the first end of the main control module, the first end of the timing module is electrically connected to the second end of the main control module, the first end of the power attenuation judgment module is electrically connected to the third end of the main control module, and the second end of the power attenuation judgment module is electrically connected to the first end of the signal output module. The temperature detection module is used to detect the temperature data of the dental cleaning machine, convert the temperature data into a temperature signal, and transmit the temperature signal to the counting module; The counting module is used to count and judge the temperature signal. When the temperature signal is greater than or equal to a preset temperature threshold, it determines the duration for which the temperature signal is greater than or equal to the temperature threshold. When the duration is greater than or equal to a preset duration threshold, it outputs a dental cleaning machine disinfection counting signal to the main control module. The timing module is used to detect the current usage time of the dental cleaning machine, convert the current usage time into a usage time signal, and transmit the usage time signal to the main control module; The main control module is used to determine the total number of disinfection cycles of the dental scaler based on the disinfection count signal of the dental scaler, and to determine the total running time of the dental scaler based on the usage duration signal, and to transmit the total number of disinfection cycles and the total running time to the power attenuation judgment module; The power attenuation judgment module is used to generate a power attenuation prompt signal for the dental scaler based on the total number of disinfection cycles and the total running time of the dental scaler. The signal output module is used to output a signal indicating the power attenuation of the dental cleaning machine.

[0006] As an optional implementation, in the first aspect of the invention, the circuit further includes a storage module, wherein: The first end of the storage module is electrically connected to the fourth end of the main control module; The storage module is used to store the total number of disinfection cycles of the dental cleaning machine.

[0007] As an optional implementation, in the first aspect of the invention, the circuit further includes a power management module, which includes an output short-circuit protection circuit and a voltage monitoring circuit, wherein: The input terminal of the output short-circuit protection circuit is used to be electrically connected to the power supply. The output terminal of the output short-circuit protection circuit is electrically connected to the fifth terminal of the main control module, the second terminal of the temperature detection module, the third terminal of the counting module, the second terminal of the timing module, the third terminal of the power attenuation judgment module, the second terminal of the signal output module, the second terminal of the storage module, and the first terminal of the voltage monitoring circuit. The second terminal of the voltage monitoring circuit is used to be electrically connected to the power supply, and the third terminal of the voltage monitoring circuit is electrically connected to the third terminal of the storage module. The output short-circuit protection circuit is used to regulate the power input voltage of the power supply to obtain the output voltage. The voltage monitoring circuit is used to monitor the power input voltage of the power supply, and locks the storage module when the power input voltage is lower than a preset power input voltage threshold.

[0008] As an optional implementation, in a first aspect of the present invention, the temperature detection module includes a temperature detection circuit and a first signal processing circuit, wherein: The first terminal of the temperature detection circuit is electrically connected to the first terminal of the first signal processing circuit, and the second terminal of the first signal processing circuit is electrically connected to the first terminal of the counting module. The temperature detection circuit is used to detect the temperature data of the dental cleaning machine and convert the temperature data into a temperature signal; The first signal processing circuit is used to perform a first signal processing operation on the temperature signal and output the processed temperature signal to the counting module. The first signal processing operation includes a filtering operation and a voltage following operation.

[0009] As an optional implementation, in a first aspect of the invention, the counting module includes a temperature comparison circuit and a timer circuit, wherein: The first terminal of the temperature comparison circuit is electrically connected to the first terminal of the temperature detection module, the second terminal of the temperature comparison circuit is electrically connected to the first terminal of the timer circuit, and the second terminal of the timer circuit is electrically connected to the first terminal of the main control module. The temperature comparison circuit is used to determine whether the temperature signal is greater than or equal to the temperature threshold. When the temperature signal is greater than or equal to the temperature threshold, a high-level signal is output to the timer circuit. The timer circuit is used to output a dental cleaning machine disinfection count signal to the main control module when it receives the high-level signal and the duration of the high-level signal is greater than or equal to the duration threshold.

[0010] As an optional implementation, in a first aspect of the present invention, the timing module includes an analog switching circuit, an operational amplifier timing circuit, and a second signal processing circuit, wherein: The first terminal of the analog switch circuit is electrically connected to the first terminal of the operational amplifier timing circuit, the second terminal of the operational amplifier timing circuit is electrically connected to the first terminal of the second signal processing circuit, and the second terminal of the second signal processing circuit is electrically connected to the second terminal of the main control module. The analog switch circuit is used to turn on when the dental scaler is detected to start working, and to transmit the working voltage of the dental scaler to the operational amplifier timing circuit. The operational amplifier timing circuit is used to determine the current usage duration corresponding to the operating voltage and convert the current usage duration into a usage duration signal; The second signal processing circuit is used to perform a second signal processing operation on the usage duration signal and transmit the processed usage duration signal to the main control module. The second signal processing operation includes voltage following operation, amplification operation and filtering operation.

[0011] As an optional implementation, in a first aspect of the invention, the operational amplifier timing circuit includes a timing capacitor and a timing comparator, wherein: The first end of the timing capacitor is electrically connected to the first end of the analog switch circuit and the inverting end of the timing comparator, respectively. The non-inverting end of the timing comparator is grounded. The second end of the timing capacitor and the output end of the timing comparator are electrically connected to the first end of the signal processing circuit, respectively. The timing capacitor is used to charge linearly over time based on the operating voltage; The timing comparator is used to output a usage duration signal that is proportional to the current usage duration corresponding to the operating voltage, and the usage duration signal includes a voltage signal.

[0012] As an optional implementation, in the first aspect of the present invention, the power attenuation determination module includes a voltage reference source circuit, a first comparator circuit, and a second comparator circuit, wherein: The first terminal of the voltage reference source circuit is used to be electrically connected to the power supply. The second terminal of the voltage reference source circuit is electrically connected to the inverting terminals of the first comparator circuit and the second comparator circuit, respectively. The non-inverting terminals of the first comparator circuit and the second comparator circuit are electrically connected to the third terminal of the main control module, respectively. The voltage reference source circuit is used to convert the power input voltage of the power supply into a reference voltage; The first comparator circuit is used to determine a power attenuation indication sub-signal for the first dental scaler based on the reference voltage and the total number of times the dental scaler has been sterilized. The second comparator circuit is used to determine a power attenuation indication signal for the second dental scaler based on the reference voltage and the total operating time of the dental scaler.

[0013] The second aspect of this invention discloses a method for analyzing the power attenuation of a dental scaler, the method being applied to the power attenuation analysis circuit of any of the dental scalers described in the first aspect of this invention, the method comprising: The temperature data of the dental scaler is detected and converted into a temperature signal, the temperature signal including the voltage signal corresponding to the temperature data; Determine whether the temperature signal is greater than or equal to a preset temperature threshold. When the temperature signal is greater than or equal to the temperature threshold, determine the duration for which the temperature signal is greater than or equal to the temperature threshold. When the duration is greater than or equal to a preset duration threshold, generate a dental cleaning machine disinfection count signal. The dental cleaning machine disinfection count signal indicates that the dental cleaning machine has completed one disinfection operation. The current usage time of the dental cleaning machine is detected and converted into a usage time signal; The total number of disinfection cycles of the dental scaler is determined based on the disinfection count signal of the dental scaler, and the total running time of the dental scaler is determined based on the usage duration signal; Based on the total number of disinfection cycles and the total runtime of the dental scaler, a power attenuation warning signal is generated. The power attenuation warning signal includes a normal signal, a warning signal, or a component replacement signal.

[0014] The third aspect of the present invention discloses a dental scaler, which includes a power attenuation analysis circuit as described in any of the first aspects of the present invention, and executes a power attenuation analysis method as described in the second aspect of the present invention through the power attenuation analysis circuit as described in any of the first aspects of the present invention to determine the power attenuation of the dental scaler.

[0015] The fourth aspect of the present invention discloses a computer storage medium storing computer instructions, which, when invoked, are used to execute the steps in the power attenuation analysis method for a dental scaler described in the second aspect of the present invention.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In this embodiment of the invention, a temperature detection module monitors the temperature data of the dental scaler, a counting module completes effective disinfection counting based on the temperature data, and a timing module collects the usage time of the dental scaler. Based on the total number of disinfection cycles and the total runtime of the dental scaler, a power attenuation indicator signal is generated and output. Therefore, implementing this invention allows for the quantification of power attenuation in the dental scaler handle through integrated circuitry, improving the accuracy and reliability of determining power attenuation, effectively ensuring the stability and safety of the dental scaler's operation, and eliminating the need for manual intervention or subjective estimation throughout the process, thus enhancing ease of use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the power attenuation analysis circuit of a dental cleaning machine disclosed in an embodiment of the present invention; Figure 2 This is a schematic diagram of the power attenuation analysis circuit of another dental cleaning machine disclosed in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a storage module disclosed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a power management module disclosed in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a temperature detection module disclosed in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a counting module disclosed in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a timing module disclosed in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a power attenuation judgment module disclosed in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of a signal output module disclosed in an embodiment of the present invention; Figure 10 This is a flowchart illustrating a method for analyzing the power attenuation of a dental scaler according to an embodiment of the present invention. Figure 11 This is a schematic diagram of the structure of a dental cleaning machine disclosed in an embodiment of the present invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This invention discloses a power attenuation analysis circuit, method, and dental scaler for a dental scaler. It quantifies the power attenuation of the dental scaler handle through integrated circuitry, improving the accuracy and reliability of determining the power attenuation, effectively ensuring the stability and safety of the dental scaler's operation, and eliminating the need for manual intervention and subjective estimation throughout the process, thus enhancing ease of use. Detailed descriptions follow.

[0023] Example 1 Please see Figure 1 , Figure 1 This is a schematic diagram of a power attenuation analysis circuit for a dental scaler disclosed in an embodiment of the present invention. Figure 1 The power attenuation analysis circuit shown for the dental scaler can be applied to a dental scaler, which may include an ultrasonic scaler with a built-in ultrasonic transducer. For example... Figure 1 As shown, the power attenuation analysis circuit of the dental scaler may include a main control module 10, a temperature detection module 20, a counting module 30, a timing module 40, a power attenuation judgment module 50, and a signal output module 60, wherein: The first end of the temperature detection module 20 is electrically connected to the first end of the counting module 30, the second end of the counting module 30 is electrically connected to the first end of the main control module 10, the first end of the timing module 40 is electrically connected to the second end of the main control module 10, the first end of the power attenuation judgment module 50 is electrically connected to the third end of the main control module 10, and the second end of the power attenuation judgment module 50 is electrically connected to the first end of the signal output module 60. Temperature detection module 20 is used to detect the temperature data of the dental scaler, convert the temperature data into a temperature signal, and transmit the temperature signal to counting module 30; The counting module 30 is used to count and judge the temperature signal. When the temperature signal is greater than or equal to the preset temperature threshold, it determines the duration for which the temperature signal is greater than or equal to the temperature threshold. When the duration is greater than or equal to the preset duration threshold, it outputs the dental cleaning machine disinfection counting signal to the main control module 10. The timing module 40 is used to detect the current usage time of the dental cleaning machine, convert the current usage time into a usage time signal, and transmit the usage time signal to the main control module 10; The main control module 10 is used to determine the total number of disinfection times of the dental scaler based on the disinfection count signal and the total running time of the dental scaler based on the usage duration signal, and transmit the total number of disinfection times and the total running time to the power attenuation judgment module 50. The power attenuation judgment module 50 is used to generate a power attenuation prompt signal for the dental scaler based on the total number of disinfection cycles and the total running time of the dental scaler. The signal output module 60 is used to output a signal indicating the power attenuation of the dental cleaning machine.

[0024] In this embodiment of the invention, optionally, the dental scaler may include an ultrasonic dental scaler with a built-in ultrasonic transducer. The ultrasonic dental scaler needs to be sterilized by high temperature and high pressure steaming. Therefore, the temperature data of the dental scaler can be detected by a temperature detection module. Specifically, the temperature detection module is used to detect the ambient temperature data of the dental scaler, and then convert the temperature data into a temperature signal. The temperature signal may include a stable analog voltage that is linearly corresponding to the temperature data, and then the temperature signal is transmitted to the counting module.

[0025] In this embodiment of the invention, optionally, the counting module can count and judge the temperature signal based on preset temperature and duration conditions. When the temperature signal simultaneously meets both the temperature and duration conditions, it is determined that the dental scaler has performed a high-temperature sterilization operation. Specifically, when the temperature signal is greater than or equal to a preset temperature threshold, the duration for which the temperature signal is greater than or equal to the temperature threshold is determined. When the duration is greater than or equal to a preset duration threshold, the dental scaler sterilization count signal is output to the main control module. The temperature threshold and duration threshold can be customized. For example, the temperature threshold can be set to 121 degrees Celsius, and the duration threshold can be set to 3 minutes. The dental scaler sterilization count signal can indicate that the dental scaler has performed a high-temperature sterilization operation.

[0026] In this embodiment of the invention, optionally, the timing module can be used to detect the current usage time of the dental scaler. Specifically, the timing module can be linked with the working circuit of the dental scaler. When the dental scaler starts ultrasonic operation, the timing module automatically starts timing. When the dental scaler stops working, the timing module pauses timing, accumulates the total usage time, converts the current usage time into a usage time signal, and transmits the usage time signal to the main control module. Specifically, the timing module can output an analog voltage signal that is proportional to the duration, and then transmit the analog voltage signal to the main control module.

[0027] In this embodiment of the invention, optionally, the main control module can be used to determine the total number of disinfection cycles of the dental scaler based on the disinfection count signal, and to determine the total running time of the dental scaler based on the usage duration signal, and transmit the total number of disinfection cycles and the total running time to the power attenuation judgment module; the power attenuation judgment module can be used to generate a power attenuation prompt signal of the dental scaler based on the total number of disinfection cycles and the total running time of the dental scaler. Specifically, the power attenuation judgment module can perform threshold judgments on the total number of disinfection cycles and the total running time of the dental scaler respectively, and the generated power attenuation prompt signals of the dental scaler are sorted in descending order of signal level as replacement signal, warning signal, and normal signal; when the total number of disinfection cycles is less than a preset warning threshold, a normal signal is generated; when the total number of disinfection cycles is greater than or equal to the warning threshold but less than a preset upper limit threshold, a warning signal is generated; when the total number of disinfection cycles is greater than or equal to the upper limit threshold, a replacement signal is generated. A normal signal is generated when the total runtime of the dental scaler is less than the preset time warning threshold; a warning signal is generated when the total runtime is greater than or equal to the time warning threshold but less than the preset time upper limit threshold; and a replacement signal is generated when the total runtime is greater than or equal to the time upper limit threshold. The number of times warning threshold and the time warning threshold can be set to 80% of the number of times upper limit threshold, and both the number of times upper limit threshold and the time upper limit threshold can be set according to the actual test lifespan of the dental scaler.

[0028] In this embodiment of the invention, optionally, the signal output module is used to output a power attenuation prompt signal for the dental scaler. When the level of the power attenuation prompt signal generated based on the total number of dental scaler sterilizations is different from the level of the power attenuation prompt signal generated based on the total running time of the dental scaler, the signal output module outputs a signal with a higher level. For example, when a normal signal is generated based on the total number of dental scaler sterilizations and a replacement signal is generated based on the total running time of the dental scaler, the signal output module outputs a replacement signal.

[0029] It is evident that implementation Figure 1The described power attenuation analysis circuit for the dental scaler can monitor the temperature data of the dental scaler through a temperature detection module, complete effective disinfection counting based on the temperature data through a counting module, and collect the usage time of the dental scaler through a timing module. Based on the total number of disinfection times and the total running time of the dental scaler, it generates and outputs a power attenuation prompt signal. It can quantify the power attenuation of the dental scaler handle through integrated circuitry, improving the accuracy and reliability of determining the power attenuation of the dental scaler, effectively ensuring the stability and safety of the dental scaler's operation, and requiring no manual intervention or subjective estimation throughout the process, thus improving ease of use.

[0030] In an optional embodiment, please refer to Figure 2 , Figure 2 This is a schematic diagram of the power attenuation analysis circuit of another dental cleaning machine disclosed in an embodiment of the present invention. Figure 2 As shown, the power attenuation analysis circuit of the dental scaler may further include a storage module 70, wherein: The first terminal of the storage module 70 is electrically connected to the fourth terminal of the main control module 10; Storage module 70 is used to store the total number of sterilizations performed by the dental cleaning machine.

[0031] In this optional embodiment, see [link to optional embodiment]. Figure 3 , Figure 3 This is a schematic diagram of the structure of a storage module disclosed in an embodiment of the present invention. Figure 3 As shown, the storage module may include a storage chip U5 for storing the total number of sterilizations performed by the dental cleaning machine. The storage chip may be of model M24C01, which can store data for a long time and ensure that the data is not lost when power is off.

[0032] As can be seen, implementing this optional embodiment enables the independent storage of the total number of disinfection cycles for the dental scaler via the storage module, achieving persistent preservation of disinfection cycle data. This facilitates medical staff in calculating the frequency of equipment disinfection, provides accurate data support for handle maintenance and replacement, and avoids misjudgments of power attenuation due to data loss. In another alternative embodiment, such as Figure 2 As shown, the power attenuation analysis circuit of the dental scaler may further include a power management module 80, which includes an output short-circuit protection circuit 801 and a voltage monitoring circuit 802, wherein: The input terminal of the output short-circuit protection circuit 801 is used to be electrically connected to the power supply. The output terminal of the output short-circuit protection circuit 801 is electrically connected to the fifth terminal of the main control module 10, the second terminal of the temperature detection module 20, the third terminal of the counting module 30, the second terminal of the timing module 40, the third terminal of the power attenuation judgment module 50, the second terminal of the signal output module 60, the second terminal of the storage module 70, and the first terminal of the voltage monitoring circuit 802. The second terminal of the voltage monitoring circuit 802 is used to be electrically connected to the power supply, and the third terminal of the voltage monitoring circuit 802 is electrically connected to the third terminal of the storage module 70. The output short-circuit protection circuit 801 is used to regulate the power input voltage of the power supply to obtain the output voltage. The voltage monitoring circuit 802 is used to monitor the power input voltage of the power supply. When the power input voltage is lower than the preset power input voltage threshold, the storage module 70 is locked.

[0033] In this optional embodiment, see [link to optional embodiment]. Figure 4 , Figure 4 This is a schematic diagram of the structure of a power management module disclosed in an embodiment of the present invention. Figure 4 As shown, the power management module 80 includes an output short-circuit protection circuit 801 and a voltage monitoring circuit 802. The output short-circuit protection circuit 801 may include an output short-circuit protection chip U13 and its peripheral circuits. The output short-circuit protection chip may be a TPS61200DRCR. The output short-circuit protection circuit can be connected to a power supply to regulate the power input voltage and obtain the output voltage. The power supply may include a button battery. It can realize a fixed and adjustable output voltage option of 1.8V-5.5V, and has a built-in energy-saving mode and overheat protection to improve efficiency at low output power. This embodiment of the invention takes the power management module outputting a stable 3.3V voltage to power the entire circuit as an example for illustration.

[0034] In this optional embodiment, optionally, such as Figure 4 As shown, the voltage monitoring circuit may include a voltage monitoring chip U12 and its peripheral circuits. The voltage monitoring chip may be a TLV803SDBZR. The voltage monitoring circuit is used to monitor the power input voltage of the power supply. When the power input voltage is lower than the preset power input voltage threshold, for example, when the power input voltage is lower than 2.2V, a reverse protection signal is triggered. The P-type MOSFET Q2 outputs a reverse level to lock the data stored in the storage module, ensuring that the data is not lost.

[0035] As can be seen, implementing this optional embodiment can achieve stable voltage regulation through the output short-circuit protection circuit of the power management module, providing low-noise and reliable power supply for the entire circuit, and adapting to the low-power operation requirements of the dental cleaning machine handle; the voltage monitoring circuit monitors the power supply voltage in real time, and automatically locks the storage module when the voltage is lower than the threshold to avoid data loss or write errors caused by undervoltage, while improving the safety of circuit operation, and adapting to the scenario of long-term sealed use of the dental cleaning machine handle without frequent power supply replacement.

[0036] In yet another alternative embodiment, such as Figure 2 As shown, the temperature detection module 20 includes a temperature detection circuit 201 and a first signal processing circuit 202, wherein: The first terminal of the temperature detection circuit 201 is electrically connected to the first terminal of the first signal processing circuit 202, and the second terminal of the first signal processing circuit 202 is electrically connected to the first terminal of the counting module 30. Temperature detection circuit 201 is used to detect the temperature data of the dental scaler and convert the temperature data into a temperature signal; The first signal processing circuit 202 is used to perform a first signal processing operation on the temperature signal and output the processed temperature signal to the counting module 30. The first signal processing operation includes filtering operation and voltage following operation.

[0037] In this optional embodiment, see [link to optional embodiment]. Figure 5 , Figure 5 This is a schematic diagram of the structure of a temperature detection module disclosed in an embodiment of the present invention. Figure 5 As shown, the temperature detection module 20 includes a temperature detection circuit 201 and a first signal processing circuit 202. The temperature detection circuit may include a temperature sensor U1, which may be a TMP235AIDBVR with an operating temperature of -40℃ to +150℃, fully covering the sterilization temperature of the dental scaler, such as a sterilization temperature of 121℃ or a steaming temperature of 134℃. The output characteristic of the temperature sensor is Vout=10mV / ℃*T(℃)+500mV, where T represents the ambient temperature, i.e., the temperature data of the dental scaler. 121℃ corresponds to a fixed output of 1.71V, and 134℃ corresponds to 1.84V. No table lookup or linearization calibration is required. The static current is only 5.4μA, which can be powered by a button battery for long-term operation. The temperature sensor can be directly connected to a power supply for power. The temperature sensor is used to detect the temperature data of the dental scaler, i.e., the ambient temperature, and convert the temperature data into a temperature signal, i.e., a voltage signal. The output pin of the temperature sensor is connected to the first signal processing circuit.

[0038] In this optional embodiment, optionally, such as Figure 5As shown, the first signal processing circuit may include a first filter sub-circuit and a first voltage follower sub-circuit. The first filter sub-circuit may include a resistor R1 and an inductor C1, and the first voltage follower sub-circuit may include an amplifier U2.1. The temperature sensor U1 receives the temperature signal from its output pin, performs a first-order RC filter on the first filter sub-circuit, and then connects it to the first voltage follower sub-circuit for voltage following. This suppresses electromagnetic interference in high-temperature environments, ensures stable temperature signal output, and then outputs a stable linear voltage proportional to the ambient temperature.

[0039] As can be seen, implementing this optional embodiment can detect the ambient temperature of the dental scaler through a temperature detection circuit, eliminate electromagnetic interference and signal noise in a high-temperature disinfection environment through filtering, ensure stable output of the temperature signal through voltage following operation, improve the accuracy and linearity of temperature detection, accurately identify the disinfection standard temperature, and reduce counting errors caused by temperature signal drift.

[0040] In yet another alternative embodiment, the counting module 30 includes a temperature comparison circuit 301 and a timer circuit 302, wherein: The first terminal of the temperature comparison circuit 301 is electrically connected to the first terminal of the temperature detection module 20, the second terminal of the temperature comparison circuit 301 is electrically connected to the first terminal of the timer circuit 302, and the second terminal of the timer circuit 302 is electrically connected to the first terminal of the main control module 10. Temperature comparison circuit 301 is used to determine whether the temperature signal is greater than or equal to the temperature threshold. When the temperature signal is greater than or equal to the temperature threshold, it outputs a high-level signal to timer circuit 302. The timer circuit 302 is used to output a dental cleaning machine disinfection count signal to the main control module 10 when a high-level signal is received and the duration of the high-level signal is greater than or equal to the duration threshold.

[0041] In this optional embodiment, see [link to optional embodiment]. Figure 6 , Figure 6 This is a schematic diagram of the structure of a counting module disclosed in an embodiment of the present invention. Figure 6 As shown, the counting module 30 includes a temperature comparison circuit 301 and a timer circuit 302. The temperature comparison circuit may include a temperature comparator U3.1 and a voltage divider circuit. The voltage divider circuit may include resistors R13 and R14, both with a resistance of 1KΩ, used to divide the input reference voltage into a temperature threshold voltage corresponding to the temperature threshold. Taking a temperature threshold of 121℃ as an example, the temperature threshold voltage is 1.71V. The non-inverting input of the temperature comparator is connected to the temperature signal (voltage signal) collected by the temperature sensor, and the inverting input is connected to the temperature threshold voltage. When the voltage signal is greater than or equal to the temperature threshold, the temperature comparator outputs a high-level signal to the timer circuit.

[0042] In this optional embodiment, optionally, such as Figure 6 As shown, the timer circuit may include a timer chip U4 and its peripheral circuits. The timer chip may be a TLC555IDR. A monostable circuit with a preset duration threshold can be built using the timer chip. The preset duration threshold can be set according to requirements. In this embodiment of the invention, the preset duration threshold is 3 minutes as an example. When the timer circuit receives a high-level signal output by the temperature comparator and the signal duration is greater than or equal to the duration threshold, the timer circuit will output a pulse trigger signal, which is the dental cleaning machine disinfection counting signal.

[0043] As can be seen, implementing this optional embodiment can accurately determine whether the temperature signal meets the standard through the temperature comparison circuit, and complete the duration anti-jitter verification in combination with the timer circuit. It is determined to be effective disinfection only when both temperature and duration are satisfied, reducing the false counting problem caused by daily temperature fluctuations and short-term high temperatures, and improving the reliability of counting data.

[0044] In yet another alternative embodiment, such as Figure 2 As shown, the timing module 40 includes an analog switching circuit 401, an operational amplifier timing circuit 402, and a signal processing circuit 403, wherein: The first terminal of the analog switch circuit 401 is electrically connected to the first terminal of the operational amplifier timing circuit 402, the second terminal of the operational amplifier timing circuit 402 is electrically connected to the first terminal of the signal processing circuit 403, and the second terminal of the signal processing circuit 403 is electrically connected to the second terminal of the main control module 10. The analog switch circuit 401 is used to turn on when the dental scaler is detected to start working and to transmit the working voltage of the dental scaler to the operational amplifier timing circuit 402. The op-amp timing circuit 402 is used to determine the current usage duration corresponding to the operating voltage and convert the current usage duration into a usage duration signal; The signal processing circuit 403 is used to perform signal processing operations on the usage duration signal and transmit the processed usage duration signal to the main control module 10. The signal processing operations include voltage following operation, amplification operation and filtering operation.

[0045] In this optional embodiment, the timing module can optionally be linked to the working circuit of the dental scaler. When the dental scaler starts ultrasonic operation, the timing module automatically starts timing; when the dental scaler stops operating, the timing module pauses timing, accumulates the total usage time, converts the current usage time into a usage time signal, and transmits the usage time signal to the main control module. Please refer to [link to relevant documentation]. Figure 7 , Figure 7 This is a schematic diagram of the structure of a timing module disclosed in an embodiment of the present invention. Figure 7As shown, the timing module 40 may include an analog switch circuit 401, an operational amplifier timing circuit 402, and a signal processing circuit 403. The analog switch circuit may include an analog switch chip, such as a CD4066BM. When the dental scaler starts working, the operating voltage of the dental scaler enters the analog switch circuit, triggering the analog switch circuit to close and conduct. Then, the operating voltage enters the operational amplifier timing circuit.

[0046] In this optional embodiment, optionally, such as Figure 7 As shown, the operational amplifier timing circuit can be used to determine the current usage duration corresponding to the operating voltage and convert the current usage duration into a usage duration signal; the signal processing circuit can be used to perform signal processing operations on the usage duration signal and transmit the processed usage duration signal to the main control module. The signal processing operations include voltage following operation, amplification operation, and filtering operation, specifically, as follows... Figure 7 As shown, the signal processing circuit may include a second voltage follower sub-circuit, a voltage amplification sub-circuit, and a second filtering sub-circuit. The second voltage follower sub-circuit may include a comparator U6.2 for voltage following of the usage duration signal. The voltage amplification sub-circuit includes a comparator U6.3, resistors R15, R16, R17, and R18, and a capacitor C10. Resistors R15 and R16 are used to adjust the voltage amplification factor, and resistors R18 and capacitor C10 are used to improve phase shift. The second filtering sub-circuit may include a resistor R4 and a capacitor C5 for filtering the usage duration signal to further improve signal quality and output a stable voltage signal.

[0047] As can be seen, implementing this optional embodiment can automatically turn on / off with the start and stop of the dental scaler, thereby realizing the automatic triggering and pausing of the timing function. The operational amplifier timing circuit accurately converts the usage duration signal, and the second signal processing circuit improves the stability and accuracy of the duration signal through voltage following, amplification, and filtering operations. The pure analog circuit architecture requires no programming, operates stably, has strong anti-interference ability, and can accurately accumulate the total running time of the dental scaler.

[0048] In yet another alternative embodiment, such as Figure 7 As shown, the op-amp timing circuit 402 includes a timing capacitor C4 and a timing comparator U6.1, wherein: The first terminal of the timing capacitor C4 is electrically connected to the first terminal of the analog switch circuit 401 and the inverting terminal of the timing comparator, respectively. The non-inverting terminal of the timing comparator U6.1 is grounded. The second terminal of the timing capacitor C4 and the output terminal of the timing comparator U6.1 are electrically connected to the first terminal of the signal processing circuit 403, respectively. The timing capacitor C4 is used for linear charging over time based on the operating voltage; The timing comparator U6.1 is used to output a usage duration signal that is proportional to the current usage duration corresponding to the operating voltage. The usage duration signal includes a voltage signal.

[0049] In this optional embodiment, when the dental scaler starts working, the dental scaler's operating voltage enters the analog switch circuit, triggering the analog switch circuit to close and conduct. Then, the operating voltage enters the operational amplifier timing circuit. After the operating voltage is input through resistor R2, capacitor C4 charges linearly over time based on the operating voltage. The timing comparator U6.1 outputs a usage duration signal that is proportional to the current usage duration corresponding to the operating voltage. The usage duration signal includes a voltage signal. When the dental scaler stops working, the analog switch circuit opens, capacitor C4 maintains the current voltage, and the accumulated working duration is locked.

[0050] As can be seen, implementing this optional embodiment can linearly charge the timing capacitor with working time, and the timing comparator outputs a voltage signal that is proportional to the usage time. This results in high timing linearity, reduced error, and the accumulated time can be locked after the circuit is powered off. There is no power-off drift problem, and timing accuracy can be guaranteed without additional calibration. This is suitable for long-term and intermittent use scenarios of dental cleaning machine handles.

[0051] In yet another alternative embodiment, such as Figure 2 As shown, the power attenuation judgment module 50 includes a voltage reference source circuit 501, a first comparator circuit 502, and a second comparator circuit 503, wherein: The first terminal of the voltage reference source circuit 501 is used to be electrically connected to the power supply. The second terminal of the voltage reference source circuit 501 is electrically connected to the inverting terminal of the first comparator circuit 502 and the inverting terminal of the second comparator circuit 503, respectively. The non-inverting terminal of the first comparator circuit 502 and the non-inverting terminal of the second comparator circuit 503 are electrically connected to the third terminal of the main control module 10, respectively. The voltage reference source circuit 501 is used to convert the power input voltage of the power supply into a reference voltage. The first comparator circuit 502 is used to determine the first dental scaler power attenuation prompt signal based on the reference voltage and the total number of times the dental scaler is disinfected; The second comparator circuit 503 is used to determine the power attenuation prompt signal of the second dental scaler based on the reference voltage and the total running time of the dental scaler.

[0052] In this optional embodiment, see [link to optional embodiment]. Figure 8 , Figure 8 This is a schematic diagram of the structure of a power attenuation judgment module disclosed in an embodiment of the present invention. Figure 8As shown, the power attenuation judgment module 50 includes a voltage reference source circuit 501, a first comparator circuit 502, and a second comparator circuit 503. The voltage reference circuit is electrically connected to the power supply and is used to convert the power supply input voltage into a reference voltage, for example, outputting a stable 2.5V reference voltage. Then, the voltage divider resistors in the first comparator circuit are used to set a warning threshold and a maximum threshold for the number of occurrences, and the voltage divider resistors in the second comparator circuit are used to set a warning threshold and a maximum threshold for the duration.

[0053] In this optional embodiment, optionally, such as Figure 8 As shown, the first comparator circuit may include a first comparator U9.1, a second comparator U9.2, and a third comparator U3.3. The first comparator circuit is used to determine the first dental scaler power attenuation prompt signal based on the reference voltage and the total number of times the dental scaler has been disinfected. Specifically, the first comparator U9.1 is used to output a replacement signal based on the total number of times the dental scaler has been disinfected, the second comparator U9.2 is used to output a warning signal based on the total number of times the dental scaler has been disinfected, and the third comparator U3.3 is used to output a normal signal based on the total number of times the dental scaler has been disinfected.

[0054] In this optional embodiment, optionally, such as Figure 8 As shown, the second comparator circuit may include a fourth comparator U9.3, a fifth comparator U9.4, and a sixth comparator U3.2. This second comparator circuit determines the power attenuation indication sub-signal of the second dental scaler based on the reference voltage and the total operating time of the scaler. Specifically, the fourth comparator U9.3 outputs a replacement signal based on the total operating time, the fifth comparator U9.4 outputs a warning signal based on the total operating time, and the sixth comparator U3.2 outputs a normal signal based on the total operating time. The power attenuation judgment module has a built-in output buffer to avoid signal interference between modules and ensure stable transmission of the trigger signal.

[0055] In this optional embodiment, see [link to optional embodiment]. Figure 9 , Figure 9 This is a schematic diagram of the structure of a signal output module disclosed in an embodiment of the present invention. Figure 9 As shown, the signal output module can receive the power attenuation status prompt signal from the power attenuation judgment module. This signal can include three levels: normal, warning, or replacement. The power attenuation prompt signal directly drives the miniature audio-visual device in the signal output module, causing different colored LEDs to flash and / or a buzzer to sound, visually indicating the power attenuation status of the dental scaler to the user. Figure 9 As shown, the signal output module may include dual-color surface mount LEDs. Taking red / green surface mount LEDs as an example, a solid green light indicates normal operation, a flashing yellow light (alternating between red and green) indicates a warning, and a flashing red light indicates that replacement is required.

[0056] As can be seen, implementing this optional embodiment can provide a high-precision, low-drift reference voltage through a voltage reference source, ensuring the stability of threshold judgment. By independently judging based on the total number of disinfection cycles and the total running time through the first and second comparator circuits, corresponding power attenuation prompt sub-signals are generated, realizing multi-parameter, hierarchical power attenuation identification, accurately distinguishing between normal, warning, and replacement-need states, avoiding the risk of misjudgment from single-parameter judgment, and improving the accuracy and reliability of judgment.

[0057] Example 2 Please see Figure 10 , Figure 10 This is a flowchart illustrating a method for analyzing the power attenuation of a dental scaler according to an embodiment of the present invention. Figure 10 The described method for analyzing the power attenuation of a dental scaler can be applied to a power attenuation analysis circuit in a dental scaler. This circuit executes the method to determine the power attenuation of the dental scaler. This invention is not limited in its specific embodiments. For example... Figure 2 As shown, the method for analyzing the power attenuation of this dental scaler may include the following operations: 901. Detect the temperature data of the dental scaler and convert the temperature data into a temperature signal.

[0058] In this embodiment of the invention, optionally, the temperature data of the compressor can be detected by a temperature detection circuit and converted into a temperature signal. The temperature data can represent the ambient temperature data of the environment in which the dental cleaning machine is located, and the temperature signal can represent a voltage signal that is linearly corresponding to the temperature data.

[0059] 902. Determine whether the temperature signal is greater than or equal to the preset temperature threshold. When the temperature signal is greater than or equal to the temperature threshold, determine the duration for which the temperature signal is greater than or equal to the temperature threshold. When the duration is greater than or equal to the preset duration threshold, generate a dental cleaning machine disinfection count signal.

[0060] Optionally, in this embodiment of the invention, a counting module can determine whether the temperature signal is greater than or equal to a preset temperature threshold. The preset temperature threshold is the minimum disinfection temperature of the dental scaler. When the temperature signal is greater than or equal to the temperature threshold, the duration for which the temperature signal is greater than or equal to the temperature threshold is determined. Then, it is determined whether the duration is greater than a preset duration threshold. The duration threshold represents the shortest single disinfection time of the dental scaler. The temperature threshold and duration threshold can be customized. For example, the temperature threshold can be set to 121 degrees Celsius, and the duration threshold can be set to 3 minutes. When the duration is greater than or equal to the preset duration threshold, a dental scaler disinfection counting signal is generated. The dental scaler disinfection counting signal indicates that the dental scaler has completed one disinfection operation. That is, when the dental scaler is in an environment greater than or equal to 121 degrees Celsius for more than 3 minutes, it is determined that the dental scaler has undergone one high-temperature disinfection operation.

[0061] 903. Detect the current usage time of the dental scaler and convert the current usage time into a usage time signal.

[0062] In this embodiment of the invention, optionally, the current usage time of the dental scaler can be detected by a timing module and converted into a usage time signal. Specifically, after the dental scaler is powered on, the current usage time of the dental scaler is automatically collected synchronously and converted into a voltage signal proportional to the usage time.

[0063] 904. Determine the total number of disinfection cycles of the dental scaler based on the disinfection count signal, and determine the total runtime of the dental scaler based on the usage duration signal.

[0064] In this embodiment of the invention, optionally, the total number of times the dental scaler is disinfected can be obtained by accumulating the disinfection count signal, and the total running time of the dental scaler can be obtained by accumulating the usage time signal.

[0065] 905. Generate a power attenuation warning signal for the dental scaler based on the total number of sterilization cycles and the total runtime of the dental scaler. The power attenuation warning signal includes a normal signal, a warning signal, or a component replacement signal.

[0066] In this embodiment of the invention, optionally, a power attenuation judgment module can generate a power attenuation prompt signal for the dental scaler based on the total number of disinfection cycles and the total operating time of the dental scaler. This power attenuation prompt signal includes a normal signal, a warning signal, or a component replacement signal. Specifically, threshold judgments can be performed on the total number of disinfection cycles and the total operating time of the dental scaler. The generated power attenuation prompt signals are sorted in descending order of signal level as replacement signal, warning signal, and normal signal. A normal signal is generated when the total number of disinfection cycles is less than a preset warning threshold. A warning signal is generated when the total number of disinfection cycles is greater than or equal to the warning threshold but less than a preset upper limit threshold. A replacement signal is generated when the total number of disinfection cycles is greater than or equal to the upper limit threshold. Similarly, a normal signal is generated when the total operating time is less than a preset duration warning threshold. A warning signal is generated when the total operating time is greater than or equal to the warning threshold but less than a preset upper limit threshold. A replacement signal is generated when the total operating time is greater than or equal to the upper limit threshold. The alarm threshold for the number of times the device is used can be set to 80% of the maximum number of times the device is used, and the alarm threshold for the duration can be set to 80% of the maximum duration the device is used. Both the maximum number of times the device is used and the maximum duration the device is used can be set based on the actual test lifespan of the dental scaler. When the power attenuation warning signal generated based on the total number of times the device is used differs from the power attenuation warning signal generated based on the total running time of the device, the signal with the higher level is output. For example, if a normal signal is generated based on the total number of times the device is used, but a replacement signal is generated based on the total running time, a replacement signal is output.

[0067] It is evident that implementation Figure 9The described method for analyzing the power attenuation of a dental scaler can detect the temperature data of the dental scaler, convert the temperature data into a temperature signal, determine whether the temperature signal is greater than or equal to a preset temperature threshold, determine the duration of the temperature signal being greater than or equal to the temperature threshold when the temperature signal is greater than or equal to the temperature threshold, and generate a dental scaler disinfection count signal when the duration is greater than or equal to a preset duration threshold. It also detects the current usage time of the dental scaler and converts the current usage time into a usage time signal, determines the total number of disinfection cycles based on the dental scaler disinfection count signal, and determines the total running time of the dental scaler based on the usage time signal. Based on the total number of disinfection cycles and total operating time of the dental scaler, a power attenuation warning signal is generated. This signal includes normal, warning, or component replacement signals. The system quantifies the disinfection and usage data, accurately generating three types of warning signals: normal, warning, and component replacement. This allows for early warning and timely alerts regarding power attenuation, improving the accuracy and reliability of determining power attenuation. It avoids delays in handpiece replacement that could affect treatment outcomes, while also preventing excessive replacements that could waste resources. Furthermore, it enables digital management of the entire dental scaler lifecycle, reducing equipment usage and maintenance costs.

[0068] Example 3 Please see Figure 11 , Figure 11 This is a schematic diagram of the structure of a dental cleaning machine disclosed in an embodiment of the present invention. Figure 11 The illustrated dental scaler includes a power attenuation analysis circuit as described in any of Embodiment 1. By executing the power attenuation analysis method as described in Embodiment 2 using this circuit, the power attenuation of the dental scaler can be determined. A temperature detection module monitors the temperature data of the dental scaler, a counting module performs effective disinfection counting based on the temperature data, and a timing module collects the usage time. Based on the total number of disinfection cycles and the total runtime, a power attenuation warning signal is generated and output. This integrated circuit quantifies the power attenuation of the dental scaler handle, improving the accuracy and reliability of determining the power attenuation, effectively ensuring the stability and safety of the dental scaler's operation. Furthermore, the entire process requires no manual intervention or subjective estimation, enhancing ease of use. It should be noted that for a detailed description of the power attenuation analysis circuit, please refer to the specific description in Embodiment 1; this embodiment will not repeat it.

[0069] It is evident that implementation Figure 11The described dental scaler can quantify the power attenuation of the scaler handle through integrated circuitry, improving the accuracy and reliability of determining the power attenuation of the scaler, effectively ensuring the stability and safety of the scaler's operation, and requiring no manual intervention or subjective estimation throughout the process, thus improving ease of use. It avoids affecting the treatment effect due to untimely handle replacement and prevents excessive replacement from wasting resources. At the same time, it realizes digital management of the entire life cycle of the dental scaler, reducing the cost of equipment use and maintenance.

[0070] Example 4 This invention discloses a computer storage medium storing computer instructions. When these computer instructions are invoked, they are used to execute the steps in the power attenuation analysis method for a dental scaler disclosed in Embodiment 2 of this invention.

[0071] Example 5 This invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform the steps in the method for analyzing the power attenuation of a dental scaler described in Embodiment 2.

[0072] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0073] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0074] Finally, it should be noted that the power attenuation analysis circuit, method, and dental scaler disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power attenuation analysis circuit for a dental scaler, characterized in that, The circuit includes a main control module, a temperature detection module, a counting module, a timing module, a power attenuation judgment module, and a signal output module, wherein: The first end of the temperature detection module is electrically connected to the first end of the counting module, the second end of the counting module is electrically connected to the first end of the main control module, the first end of the timing module is electrically connected to the second end of the main control module, the first end of the power attenuation judgment module is electrically connected to the third end of the main control module, and the second end of the power attenuation judgment module is electrically connected to the first end of the signal output module. The temperature detection module is used to detect the temperature data of the dental cleaning machine, convert the temperature data into a temperature signal, and transmit the temperature signal to the counting module; The counting module is used to count and judge the temperature signal. When the temperature signal is greater than or equal to a preset temperature threshold, it determines the duration for which the temperature signal is greater than or equal to the temperature threshold. When the duration is greater than or equal to a preset duration threshold, it outputs a dental cleaning machine disinfection counting signal to the main control module. The timing module is used to detect the current usage time of the dental cleaning machine, convert the current usage time into a usage time signal, and transmit the usage time signal to the main control module; The main control module is used to determine the total number of disinfection cycles of the dental scaler based on the disinfection count signal of the dental scaler, and to determine the total running time of the dental scaler based on the usage duration signal, and to transmit the total number of disinfection cycles and the total running time to the power attenuation judgment module; The power attenuation judgment module is used to generate a power attenuation prompt signal for the dental scaler based on the total number of disinfection cycles and the total running time of the dental scaler. The signal output module is used to output a signal indicating the power attenuation of the dental cleaning machine.

2. The power attenuation analysis circuit for the dental scaler according to claim 1, characterized in that, The circuit also includes a storage module, wherein: The first end of the storage module is electrically connected to the fourth end of the main control module; The storage module is used to store the total number of disinfection cycles of the dental cleaning machine.

3. The power attenuation analysis circuit for the dental scaler according to claim 2, characterized in that, The circuit also includes a power management module, which comprises an output short-circuit protection circuit and a voltage monitoring circuit, wherein: The input terminal of the output short-circuit protection circuit is used to be electrically connected to the power supply. The output terminal of the output short-circuit protection circuit is electrically connected to the fifth terminal of the main control module, the second terminal of the temperature detection module, the third terminal of the counting module, the second terminal of the timing module, the third terminal of the power attenuation judgment module, the second terminal of the signal output module, the second terminal of the storage module, and the first terminal of the voltage monitoring circuit. The second terminal of the voltage monitoring circuit is used to be electrically connected to the power supply, and the third terminal of the voltage monitoring circuit is electrically connected to the third terminal of the storage module. The output short-circuit protection circuit is used to regulate the power input voltage of the power supply to obtain the output voltage. The voltage monitoring circuit is used to monitor the power input voltage of the power supply, and locks the storage module when the power input voltage is lower than a preset power input voltage threshold.

4. The power attenuation analysis circuit for a dental scaler according to any one of claims 1-3, characterized in that, The temperature detection module includes a temperature detection circuit and a first signal processing circuit, wherein: The first terminal of the temperature detection circuit is electrically connected to the first terminal of the first signal processing circuit, and the second terminal of the first signal processing circuit is electrically connected to the first terminal of the counting module. The temperature detection circuit is used to detect the temperature data of the dental cleaning machine and convert the temperature data into a temperature signal; The first signal processing circuit is used to perform a first signal processing operation on the temperature signal and output the processed temperature signal to the counting module. The first signal processing operation includes a filtering operation and a voltage following operation.

5. The power attenuation analysis circuit for a dental scaler according to any one of claims 1-3, characterized in that, The counting module includes a temperature comparison circuit and a timer circuit, wherein: The first terminal of the temperature comparison circuit is electrically connected to the first terminal of the temperature detection module, the second terminal of the temperature comparison circuit is electrically connected to the first terminal of the timer circuit, and the second terminal of the timer circuit is electrically connected to the first terminal of the main control module. The temperature comparison circuit is used to determine whether the temperature signal is greater than or equal to the temperature threshold. When the temperature signal is greater than or equal to the temperature threshold, a high-level signal is output to the timer circuit. The timer circuit is used to output a dental cleaning machine disinfection count signal to the main control module when it receives the high-level signal and the duration of the high-level signal is greater than or equal to the duration threshold.

6. The power attenuation analysis circuit for a dental scaler according to any one of claims 1-3, characterized in that, The timing module includes an analog switching circuit, an operational amplifier timing circuit, and a second signal processing circuit, wherein: The first terminal of the analog switch circuit is electrically connected to the first terminal of the operational amplifier timing circuit, the second terminal of the operational amplifier timing circuit is electrically connected to the first terminal of the second signal processing circuit, and the second terminal of the second signal processing circuit is electrically connected to the second terminal of the main control module. The analog switch circuit is used to turn on when the dental scaler is detected to start working, and to transmit the working voltage of the dental scaler to the operational amplifier timing circuit. The operational amplifier timing circuit is used to determine the current usage duration corresponding to the operating voltage and convert the current usage duration into a usage duration signal; The second signal processing circuit is used to perform a second signal processing operation on the usage duration signal and transmit the processed usage duration signal to the main control module. The second signal processing operation includes voltage following operation, amplification operation and filtering operation.

7. The power attenuation analysis circuit for the dental scaler according to claim 6, characterized in that, The operational amplifier timing circuit includes a timing capacitor and a timing comparator, wherein: The first end of the timing capacitor is electrically connected to the first end of the analog switch circuit and the inverting end of the timing comparator, respectively. The non-inverting end of the timing comparator is grounded. The second end of the timing capacitor and the output end of the timing comparator are electrically connected to the first end of the signal processing circuit, respectively. The timing capacitor is used to charge linearly over time based on the operating voltage; The timing comparator is used to output a usage duration signal that is proportional to the current usage duration corresponding to the operating voltage, and the usage duration signal includes a voltage signal.

8. The power attenuation analysis circuit for a dental scaler according to any one of claims 1-3, characterized in that, The power attenuation judgment module includes a voltage reference source circuit, a first comparator circuit, and a second comparator circuit, wherein: The first terminal of the voltage reference source circuit is used to be electrically connected to the power supply. The second terminal of the voltage reference source circuit is electrically connected to the inverting terminals of the first comparator circuit and the second comparator circuit, respectively. The non-inverting terminals of the first comparator circuit and the second comparator circuit are electrically connected to the third terminal of the main control module, respectively. The voltage reference source circuit is used to convert the power input voltage of the power supply into a reference voltage; The first comparator circuit is used to determine a power attenuation indication sub-signal for the first dental scaler based on the reference voltage and the total number of times the dental scaler has been sterilized. The second comparator circuit is used to determine a power attenuation indication signal for the second dental scaler based on the reference voltage and the total operating time of the dental scaler.

9. A method for analyzing the power attenuation of a dental scaler, characterized in that, The method is applied to the power attenuation analysis circuit of a dental scaler, and the method includes: The temperature data of the dental scaler is detected and converted into a temperature signal, the temperature signal including the voltage signal corresponding to the temperature data; Determine whether the temperature signal is greater than or equal to a preset temperature threshold. When the temperature signal is greater than or equal to the temperature threshold, determine the duration for which the temperature signal is greater than or equal to the temperature threshold. When the duration is greater than or equal to a preset duration threshold, generate a dental cleaning machine disinfection count signal. The dental cleaning machine disinfection count signal indicates that the dental cleaning machine has completed one disinfection operation. The current usage time of the dental cleaning machine is detected and converted into a usage time signal; The total number of disinfection cycles of the dental scaler is determined based on the disinfection count signal of the dental scaler, and the total running time of the dental scaler is determined based on the usage duration signal; Based on the total number of disinfection cycles and the total runtime of the dental scaler, a power attenuation warning signal is generated. The power attenuation warning signal includes a normal signal, a warning signal, or a component replacement signal.

10. A dental cleaning machine, characterized in that, The dental scaler includes a power attenuation analysis circuit as described in any one of claims 1-8, and executes the power attenuation analysis method as described in claim 9 through the power attenuation analysis circuit as described in any one of claims 1-8 to determine the power attenuation of the dental scaler.

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