Portable needle warming instrument control system and portable needle warming instrument

Abstract

The utility model relates to the technical field of physiotherapy devices, in particular to a portable needle warming instrument control system and a portable needle warming instrument. The system comprises a main control module; the main control module is connected with the DAC module, and the main control module is used for controlling the DAC module to generate multiple paths of constant current; the DAC module is connected with the loads, the DAC module is used for converting the voltage signals into current signals, and the loads are heated through multiple paths of constant currents generated by the DAC module; the input end of the feedback module is connected with the DAC module, the output end of the feedback module is connected with the main control module, the feedback module is used for feeding back voltage information and current information of the DAC module to the main control module, and the main control module adjusts a control instruction to the DAC module according to the information fed back by the feedback module; and the interaction module is connected with the main control module, sends a control instruction to the main control module, and displays the current working state of the system at the same time. According to the utility model, the precision and safety of temperature control are improved, and the portability of the needle warming instrument is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of physical therapy devices, in particular to a portable warm needle instrument control system and a portable warm needle instrument. Background Art

[0002] With the in-depth research and wide application of TCM physiotherapy technology, warm physiotherapy methods such as moxibustion and cupping have received extensive attention and attention in the medical field due to their unique therapeutic effects. Among them, warm needle therapy, as an important means of warm physiotherapy, can effectively relieve pain and promote blood circulation by heating the back end of the needle and quickly inserting it into the acupuncture points or affected areas of the human body. It is highly respected in the field of TCM physiotherapy due to its unique advantages.

[0003] Traditional warm needle heating methods, such as using an alcohol lamp to directly heat the rear end of the needle body, have obvious shortcomings: first, the temperature of the alcohol lamp is difficult to accurately control, which can easily cause burns; second, heating with an open alcohol flame poses obvious safety hazards; third, the temperature of the needle body is unstable during the heating process and the heating is uneven; finally, the operation process is cumbersome, affecting the treatment efficiency.

[0004] In order to solve these problems, the existing technology proposes a needle warming device using electric heating, which controls the needle heating through an electronic numerical control circuit, such as using a discrete electronic numerical control circuit, connecting multiple sets of transformer taps, and selecting a suitable tap output voltage through a band switch to heat the needle body. Although this method solves the problem of alcohol lamp heating to a certain extent, it still has some significant defects.

[0005] Specifically, the output voltage of the existing electric heating needle temperature meter cannot be adjusted continuously, and can only be adjusted in large steps through the tap, which has low accuracy and cannot meet the needs of fine temperature control. At the same time, since the output current is not limited, there is a safety hazard of overcurrent. In addition, the existing needle temperature meter has a single function and cannot be remotely controlled. It is also large in size and requires an external power supply, which has poor portability. In terms of human-computer interaction, the operating interface of the existing needle temperature meter is not friendly enough, which affects its operability. Utility Model Content

[0006] The purpose of the present utility model is to provide a portable warm needle instrument control system and a portable warm needle instrument in order to solve at least one of the above technical problems.

[0007] The utility model provides a portable needle temperature instrument control system, comprising: a main control module, a DAC module, a feedback module, and an interaction module;

[0008] The main control module is connected to the DAC module, and the main control module is used to control the DAC module to generate multiple constant currents;

[0009] The DAC module is connected to the load, and the DAC module is used to convert the voltage signal into a current signal, and the multiple constant currents generated by the DAC module are used to heat each load respectively;

[0010] The input end of the feedback module is connected to the DAC module, and the output end is connected to the main control module. The feedback module is used to feed back the voltage information and current information of the DAC module to the main control module, and the main control module adjusts the control instructions to the DAC module according to the information fed back by the feedback module;

[0011] The interactive module is connected to the main control module, and the interactive module sends the control instruction to the main control module, and the interactive module displays the current working status of the system.

[0012] Further, the interaction module includes: an input unit, a display unit, and an alarm unit;

[0013] The input unit is used to generate the control instruction according to the instruction input by the user;

[0014] The display unit is used to display the current working state of the system, which includes the switch state of each output, the output voltage of each output, the output current of each output, and the remaining time of the timing heating of each output;

[0015] The alarm unit is used to remind the user that heating is complete when one output reaches the scheduled heating time. The alarm unit is also used to remind the user of system fault information.

[0016] Furthermore, the system further comprises: a remote module;

[0017] The remote module is wirelessly connected to the main control module. The operation of the main control module can be controlled by the remote module. The remote module is also used to display the current working status of the system.

[0018] Further, the feedback module includes: a voltage feedback unit and a current feedback unit;

[0019] The voltage feedback unit is used to collect voltage information of the DAC module, compare the voltage information with a reference voltage, and send the comparison result to the main control module;

[0020] The current feedback unit is used to collect current information of the DAC module and determine whether to execute the overcurrent protection function according to the current information.

[0021] Furthermore, the main control module adopts ESP32 chip.

[0022] Furthermore, the DAC module includes a SX1308 chip and a second-order low-pass filter circuit.

[0023] Furthermore, the feedback module includes an LM339 comparator.

[0024] Furthermore, the system further comprises: a power module, the power module being connected to each module of the system; the power module comprising a power management unit, a battery unit and a charging unit connected to the power management unit;

[0025] When the charging unit is connected to an external power source, the power management unit uses the external power source to charge the battery unit, and the power management unit supplies power to various modules of the system;

[0026] When the charging unit is not connected to an external power source, the power management unit uses the electric energy stored in the battery unit to supply power to various modules of the system.

[0027] Furthermore, the power management unit adopts an IP5306 chip.

[0028] The utility model also provides a portable warm needle instrument for heating warm needles. The portable warm needle instrument comprises any one of the portable warm needle instrument control systems described above.

[0029] The beneficial effects of the utility model include:

[0030] The utility model significantly improves the portability of the device by adopting a compact design and a built-in lithium battery. The utility model combines the analog DAC, feedback resistor, LM339 and SX1308 circuit design at the hardware level with software settings and fast recovery fuses to achieve a more reliable overcurrent protection mechanism. The utility model uses the powerful ESP32 as the main control chip, supports WIFI and Bluetooth protocols, and realizes the remote control function of the device. The utility model introduces an OLED display and button operation, providing an intuitive and easy-to-operate human-computer interaction interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the control system structure of a portable temperature needle instrument according to one embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of the main control circuit principle of an implementation mode of the utility model;

[0033] Figure 3 This is a schematic diagram of the circuit principle of one channel of one implementation mode of the utility model;

[0034] Figure 4This is a schematic diagram of the circuit principle of the LM339 comparator of one implementation mode of the utility model;

[0035] Figure 5 A schematic diagram of the circuit principle of a power management circuit according to an embodiment of the present utility model Figure 1 ;

[0036] Figure 6 A schematic diagram of the circuit principle of a power management circuit according to an embodiment of the present utility model Figure 2 ;

[0037] Figure 7 This is a schematic diagram of the circuit principle of an OLED display screen according to one embodiment of the present utility model;

[0038] Figure 8 This is a schematic diagram of the circuit principle of a buzzer in one embodiment of the utility model;

[0039] Fig. 9 This is a schematic diagram of the circuit principle of a key according to one embodiment of the utility model;

[0040] Fig.10 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 1 ;

[0041] Fig.11 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 2 ;

[0042] Fig.12 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 3 ;

[0043] Fig.13 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 4 . DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] Embodiment 1

[0046] Figure 1 This is a schematic diagram of the control system structure of a portable needle temperature instrument according to one embodiment of the present invention. Figure 1As shown, according to an embodiment of the utility model, a portable temperature needle instrument control system includes: a main control module, a DAC module, a feedback module, and an interaction module;

[0047] The main control module is connected to the DAC module, and the main control module is used to control the DAC module to generate multiple constant currents;

[0048] The DAC module is connected to the load. The DAC module is used to convert the voltage signal into a current signal. The multiple constant currents generated by the DAC module are used to heat each load.

[0049] The input end of the feedback module is connected to the DAC module, and the output end is connected to the main control module. The feedback module is used to feed back the voltage information and current information of the DAC module to the main control module. The main control module adjusts the control instructions to the DAC module according to the information fed back by the feedback module;

[0050] The interactive module is connected to the main control module, and the interactive module sends control instructions to the main control module. At the same time, the interactive module displays the current working status of the system.

[0051] In this embodiment, the portable temperature needle instrument control system includes: a main control module, a DAC module, a feedback module, and an interactive module; the user sends a control instruction to the main control module through the interactive module, and the main control module controls the DAC module to generate multiple constant currents according to the control instruction, and the current size of each current can be adjusted. Each output of the DAC module is connected to a load, and the load is a temperature needle. The temperature needle is heated by the constant current output by the DAC module. According to the control instruction, when the preset time is reached, the temperature needle reaches the preset temperature, and the main control module controls the output to stop, thereby realizing controllable heating of multiple temperature needles. During the heating process, the feedback module collects the voltage information and current information of the DAC module, and sends feedback information to the main control module. The main control module adjusts the control instruction to the DAC module according to the feedback information of the DAC module, realizes the overcurrent protection function and the overvoltage protection function, and ensures the safety of the load heating.

[0052] The utility model realizes the precise and controllable heating of multiple warm needles; the user issues control instructions through the interactive module, and the main control module controls the DAC module to output a constant current, adjusts the current size of each channel, and realizes the heating of the warm needles by connecting with the warm needles; during the heating process, the system uses the feedback module to monitor the voltage and current information in real time, performs overcurrent and overvoltage protection, and ensures the safety and accuracy of the warm needle heating process. The utility model has the function of preset time and temperature control, and can automatically stop heating when the predetermined conditions are met, thereby improving the convenience of operation and the control accuracy of the warm needle instrument.

[0053] According to an implementation mode of the utility model, the interaction module includes: an input unit, a display unit, and an alarm unit;

[0054] The input unit is used to generate control instructions according to instructions input by the user;

[0055] The display unit is used to display the current working status of the system, which includes the switch status of each output, the output voltage of each output, the output current of each output, and the remaining time of the timing heating of each output;

[0056] The alarm unit is used to remind the user that heating is complete when one output reaches a preset condition. The alarm unit is also used to prompt system fault information.

[0057] In this embodiment, the interactive module adopts a graphical interface, including an input unit, a display unit, and an alarm unit; specifically, the input unit adopts a plurality of buttons, through which the set voltage or set current of each output and the preset heating time can be adjusted; the display unit adopts an OLED screen, and the switch state of each output, the output voltage of each output, the output current of each output, and the remaining timed heating time of each output are displayed on the OLED screen; the input unit can be a button set at the edge of the OLED screen, or a touch button set on the OLED screen. Taking the latter as an example, by pressing the touch button on the OLED screen Operation, set the switch state, heating current, heating voltage and timed heating time of each temperature needle; the alarm unit includes a buzzer. When one output reaches the preset condition, the heating ends, the buzzer emits a prompt sound, and the prompt text is displayed on the OLED screen, such as "the Xth output ends heating". The preset condition can be that the timed heating time is reached; when the system fails, such as the output current is too large or the output voltage is too large, and the output of this channel stops automatically, the alarm unit can give a fault information reminder, the buzzer emits a prompt sound, and the corresponding prompt text is displayed on the OLED screen, such as "the Yth output current is overloaded, stop heating", etc.

[0058] The utility model realizes controllable heating of multiple temperature needles by adopting OLED screen and buttons as human-computer interaction interface. The graphical interface is concise and clear, and the operation is easy. The user can intuitively adjust the set voltage, current, and heating time, and obtain the heating end or system failure information in time through the alarm unit, thereby effectively improving the control accuracy of multiple temperature needle heating and user experience.

[0059] According to an embodiment of the utility model, the portable needle temperature instrument control system further includes: a remote module;

[0060] The remote module is wirelessly connected to the main control module. The operation of the main control module can be controlled through the remote module. The remote module is also used to display the current working status of the system.

[0061] In this embodiment, the user can pre-install an application on a mobile phone or computer, and connect the application as a remote module to the main control module. The function of the remote module is similar to that of the interactive module, and a graphical interface is used. The user can send control instructions to the main control module through the remote module to adjust the set voltage or set current of each output, as well as the preset heating time; the switch status, heating current, heating voltage and timed heating time of each temperature needle can be viewed through the application; when the preset heating time is reached or a system failure occurs, the user can also understand the corresponding situation through the application.

[0062] The utility model realizes the remote control and status monitoring functions of the portable temperature needle instrument control system by introducing a remote module; the user can remotely send control instructions through an application on a mobile phone or computer, adjust various parameters of the temperature needle instrument, and view its working status in real time. The system can also promptly notify the user when the preset heating time is reached or a fault occurs, thereby improving the convenience and safety of use.

[0063] According to an embodiment of the present invention, the feedback module includes: a voltage feedback unit and a current feedback unit;

[0064] The voltage feedback unit is used to collect the voltage information of the DAC module, compare the voltage information with the reference voltage, and send the comparison result to the main control module;

[0065] The current feedback unit is used to collect the current information of the DAC module and determine whether to execute the overcurrent protection function according to the current information;

[0066] The feedback module includes the LM339 comparator.

[0067] The voltage feedback unit of the utility model collects voltage information of the DAC module, compares the collected voltage information with the set voltage, and sends the comparison result to the main control module, and the main control module adjusts the voltage of the output of this path; the current feedback unit includes an LM339 comparator, and the current feedback unit collects the voltage drop across the feedback resistor and compares it with the reference voltage. When the output current is too large, the voltage drop across the feedback resistor exceeds the reference voltage, and the LM339 outputs a low level. The main control module controls the DAC module to turn off the output of this path according to the low level signal, thereby playing an overcurrent protection function. When the output of this path is turned off for a system set time, the main control module controls the DAC module to restore the heating function of the output of this path, thereby ensuring the warm needle effect.

[0068] The utility model adopts voltage feedback to ensure the stability of output voltage; at the same time, the LM339 comparator is used to realize the current feedback and overcurrent protection function. When the overcurrent is detected, the system can automatically shut down the problematic output path and resume heating after the safety time has passed, effectively preventing damage and ensuring the heating effect of the warm needle. Compared with the existing design, this solution not only improves the safety at the hardware level, but also further improves the overall reliability and stability through software settings and fast recovery fuses.

[0069] According to one implementation of the utility model, the main control unit adopts an ESP32 chip;

[0070] The DAC module includes the SX1308 chip and a second-order low-pass filter circuit.

[0071] The ESP32 chip has Bluetooth and WIFI functions, and also has a timing function. The ESP32 chip only requires a few peripheral devices to achieve powerful processing functions. In this embodiment, the main control unit uses the ESP32 chip, which can communicate with the remote module without adding a communication chip. The built-in RTC function of the chip can be used as a timer to time each output and automatically restore the heating of the output in the overcurrent protection function.

[0072] The ESP32 chip generates a PWM signal, which is then converted into an analog voltage signal through a second-order low-pass filter circuit and input into the SX1308 chip to implement a multi-channel analog DAC. The output of the SX1308 is controlled by changing the duty cycle of the PWM signal.

[0073] The utility model adopts ESP32 as the main control unit, combines its built-in Bluetooth, WIFI and RTC functions, realizes remote communication and precise timing control without additional communication chips, and significantly improves the integration and reliability of the system. The main control unit of the utility model adopts ESP32 chip and uses SX1308 chip as the switching power supply chip, realizes low-cost multi-channel analog DAC, and ensures the accuracy and flexibility of constant current output.

[0074] According to an embodiment of the present utility model, the portable needle temperature instrument control system further includes: a power module, the power module is connected to each module of the system; the power module includes a power management unit, a battery unit and a charging unit connected to the power management unit;

[0075] When the charging unit is connected to an external power source, the power management unit uses the external power source to charge the battery unit, and the power management unit supplies power to various modules of the system;

[0076] When the charging unit is not connected to an external power source, the power management unit uses the power stored in the battery unit to power various modules of the system;

[0077] The power management unit uses the IP5306 chip.

[0078] In this implementation, the IP5306 chip is used as the power management unit, and the lithium battery is used as the battery unit. The structure is compact. The IP5306 is used as a battery charge and discharge management IC. When connected to an external power supply, the lithium battery stores electricity, and the IP5306 directly uses the external power supply to power the various modules of the system; when not connected to an external power supply, the IP5306 uses the electric energy stored in the lithium battery to power the various modules of the system.

[0079] The utility model takes into account the portability requirement of the temperature needle instrument, has a compact structure, a small size, can be used anytime and anywhere, does not need to rely on an external power supply, and significantly enhances its portability and practicability.

[0080] According to an embodiment of the utility model, a portable warm needle instrument is provided for heating warm needles, and the portable warm needle instrument includes any one of the portable warm needle instrument control systems described above.

[0081] In terms of safety, the utility model realizes overcurrent and overvoltage protection through hardware circuit design combined with software control, improving the stability and reliability of the system; the main control unit adopts ESP32 chip, supports WIFI and Bluetooth protocols, realizes remote control function, and accurately controls the output of DAC module through PWM signal and second-order low-pass filter circuit, realizing accurate adjustment of multi-channel constant current; the interactive module adopts graphical OLED screen and buttons, providing an intuitive and simple operation interface; the remote module allows users to remotely operate and monitor through mobile phones or computer applications; the power management module adopts IP5306 chip to ensure effective charge and discharge management of the battery. The utility model realizes the portability, safety and user-friendliness of the equipment; the system adopts compact design and built-in lithium battery, gets rid of the dependence on external power supply and enhances portability.

[0082] Embodiment 2

[0083] According to an embodiment of the utility model, a portable temperature needle instrument control system includes a hardware part and a software part;

[0084] The hardware part includes: main control circuit, multiple channels, power management circuit, OLED display, buzzer, and buttons;

[0085] The main control circuit includes a main control chip ESP32; the multi-channel includes a switching power supply chip SX1308 and a LM339 comparator; and the power management circuit includes a power management chip IP5306.

[0086] Figure 2 This is a schematic diagram of the main control circuit principle of an implementation mode of the utility model; Figure 3 This is a schematic diagram of the circuit principle of one channel of one implementation mode of the utility model; Figure 4 This is a schematic diagram of the circuit principle of the LM339 comparator in one embodiment of the utility model. Figure 2-Figure 4 As shown, the ESP32 chip as the main control chip outputs multiple analog voltages through its multiple PWM output ports after filtering by a second-order active low-pass filter to form multiple DACs, thereby realizing multiple analog outputs. Each DAC output is connected to the non-inverting end of the LM339 comparator after passing through the feedback resistor. The inverting terminal of the LM339 is connected to the reference voltage, and its output is connected to the enable end of the SX1308. When the output current is too large, the voltage drop across the feedback resistor exceeds the reference voltage, the LM339 outputs a low level, and the SX1308 is turned off, which plays an overcurrent protection role. As a switching power supply chip, the SX1308 outputs a constant current to the load (warm needle) under the control of the LM339. The output current can be changed by adjusting the DAC output voltage. In this embodiment, six outputs are taken as an example.

[0087] Figure 5 A schematic diagram of the circuit principle of a power management circuit according to an embodiment of the present utility model Figure 1 ; Figure 6 A schematic diagram of the circuit principle of a power management circuit according to an embodiment of the present utility model Figure 2 .like Figure 5 and Figure 6 As shown in the figure, IP5306 is used as a power management IC to control the charging and discharging of lithium batteries. When no external power is connected, it powers the system; when an external power is connected, it charges the lithium battery and powers the system.

[0088] Figure 7 This is a schematic diagram of the circuit principle of an OLED display screen according to one embodiment of the present utility model; Figure 8 This is a schematic diagram of the circuit principle of a buzzer in one embodiment of the utility model; Fig. 9 This is a schematic diagram of the circuit principle of a key according to one embodiment of the utility model. Figure 7-Figure 9 As shown in the figure, the OLED display is connected to the I2C interface of ESP32 to display the current output status of each channel and menu information. The buzzer is used to issue a prompt tone, and multiple independent buttons are connected to the GPIO port of ESP32 for human-computer interaction.

[0089] Fig.10 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 1 ; Fig.11 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 2 ; Fig.12 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 3; Fig.13 A schematic diagram of the circuit principle of a test terminal according to an embodiment of the present invention Figure 4 .like Figure 10-13 As shown, the system sets test terminals at key positions of the hardware circuit. When the system fails, these test terminals can be used to quickly find the hardware fault point, troubleshoot and repair the fault.

[0090] The software part realizes the following functions:

[0091] ESP32 combines PWM with timers to generate multiple PWM signals. Each output voltage is controlled by adjusting the duty cycle. ESP32 samples each feedback voltage through ADC and compares it with the set threshold. When the feedback voltage exceeds the threshold, hardware overcurrent protection is implemented by controlling the corresponding SX1308 enable terminal, and the software timer is started to try to restart the output after a certain period of time.

[0092] The system supports wireless network connection and can be remotely controlled through web pages or APP. The OLED display and key detection program run in independent tasks and communicate with the output control task through message queues to achieve human-computer interaction. The system operation status is displayed through OLED, including the status of each output switch, current size, remaining time of timing, battery power, etc. Parameters such as output current and timing time can be set by pressing buttons.

[0093] The utility model adopts the ESP32 main control chip, fully utilizing its advantages of supporting WIFI and Bluetooth protocols, realizing remote control function, greatly enhancing the scalability of the system, and providing users with a convenient and flexible operation experience; the ESP32 main control chip is combined with the SX1308 switching power supply IC and the LM339 comparator to achieve multi-channel adjustable constant current output. Through the circuit design of analog DAC, feedback resistor, etc., output overcurrent protection is realized at the hardware level, improving the stability and safety of the system.

[0094] The utility model integrates the IP5306 power management chip to achieve efficient charge and discharge management of lithium batteries, so that the device can operate independently without an external power supply, significantly enhancing the portability of the device. In addition, the device is equipped with an OLED display and a series of independent buttons, building an intuitive and easy-to-operate human-computer interaction interface, allowing users to easily control each output and monitor the status in real time, greatly improving the user experience.

[0095] In view of the problem that the existing technology relies on output current limitation (such as fuse) to achieve protection and has insufficient reliability, the utility model not only realizes overcurrent protection at the hardware level, but also further enhances the safety of the device through the combination of software setting and fast recovery fuse. This combination of software and hardware ensures that the device can respond quickly and accurately when facing various abnormal situations.

[0096] The utility model integrates advanced hardware and software technologies to provide users with an excellent product solution with high portability, high security, strong scalability and excellent human-computer interaction experience.

[0097] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0098] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A portable needle temperature instrument control system, characterized in that: include: Main control module, DAC module, feedback module, interaction module; The main control module is connected to the DAC module, and the main control module is used to control the DAC module to generate multiple constant currents; The DAC module is connected to the load, and the DAC module is used to convert the voltage signal into a current signal, and the multiple constant currents generated by the DAC module are used to heat each load respectively; The input end of the feedback module is connected to the DAC module, and the output end is connected to the main control module. The feedback module is used to feed back the voltage information and current information of the DAC module to the main control module, and the main control module adjusts the control instructions to the DAC module according to the information fed back by the feedback module; The interactive module is connected to the main control module, and the interactive module sends the control instruction to the main control module, and the interactive module displays the current working status of the system.

2. The portable warm needle according to claim 1 The instrument control system is characterized in that The interaction module includes: an input unit, a display unit, and an alarm unit; The input unit is used to generate the control instruction according to the instruction input by the user; The display unit is used to display the current working state of the system, which includes the switch state of each output, the output voltage of each output, the output current of each output, and the remaining time of the timing heating of each output; The alarm unit is used to remind the user that heating is complete when one output reaches the scheduled heating time. The alarm unit is also used to remind the user of system fault information.

3. The portable warm needle according to claim 1 The instrument control system is characterized in that The system further comprises: a remote module; The remote module is wirelessly connected to the main control module. The operation of the main control module can be controlled by the remote module. The remote module is also used to display the current working status of the system.

4. The portable warm needle according to claim 1 The instrument control system is characterized in that The feedback module includes: a voltage feedback unit and a current feedback unit; The voltage feedback unit is used to collect voltage information of the DAC module, compare the voltage information with a reference voltage, and send the comparison result to the main control module; The current feedback unit is used to collect current information of the DAC module and determine whether to execute the overcurrent protection function according to the current information.

5. The portable temperature needle instrument control system according to claim 1 is characterized in that: The main control module adopts ESP32 chip.

6. The portable needle temperature instrument control system according to claim 1 is characterized in that: The DAC module includes a SX1308 chip and a second-order low-pass filter circuit.

7. The portable needle temperature instrument control system according to claim 1 is characterized in that: The feedback module includes a LM339 comparator.

8. The portable warm needle according to claim 1 The instrument control system is characterized in that The system further comprises: a power module, the power module being connected to each module of the system; the power module comprising a power management unit, a battery unit and a charging unit connected to the power management unit; When the charging unit is connected to an external power source, the power management unit uses the external power source to charge the battery unit, and the power management unit supplies power to various modules of the system; When the charging unit is not connected to an external power source, the power management unit uses the electric energy stored in the battery unit to supply power to various modules of the system.

9. The portable needle temperature instrument control system according to claim 8, characterized in that: The power management unit adopts IP5306 chip.

10. A portable warm needle device for heating warm needles, characterized in that: It comprises a portable needle temperature instrument control system as described in any one of claims 1-9.

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