A movable multi-source radio frequency treatment device and a temperature control method thereof

Abstract

The application discloses a movable multi-source radio frequency treatment device and a temperature control method thereof, and relates to the field of radio frequency treatment technology, and comprises a device shell, two steering gears are arranged in the device shell, a small radio frequency heating source is connected to one steering gear, a temperature measuring module is connected to the small radio frequency heating source, one steering gear controls the radio frequency heating source and the temperature measuring module, and the other steering gear controls the overall rotation, the application adds a scanning link before temperature control, calculates the average temperature of the whole area for the next operation, uses a multi-stage temperature regulation mode when regulating the temperature, the target temperature of PID control is not the set temperature value, but the temperature positively correlated with the current temperature, adopts a closed-loop control algorithm to realize automatic control and reduce labor cost, and the multi-stage temperature regulation mode makes the temperature of the control area more balanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of radio frequency treatment technology, and particularly relates to a movable multi-source radio frequency treatment device and a temperature control method thereof. BACKGROUND

[0002] Nowadays, radio frequency treatment is more and more popular, and more and more related treatment devices are put into application.

[0003] However, the popular radio frequency treatment device is mainly in a manual operation mode, and the user must operate in real time, so that the operation level of the user is required to be relatively high. Later, even though a movable multi-source radio frequency treatment device appears, a control algorithm matched with the device does not appear, and the whole heating area cannot be well controlled. The popular radio frequency treatment device is mainly in a manual operation mode, and the user must operate in real time, so that the operation level of the user is required to be relatively high. At the present stage, the control algorithm of the movable multi-source radio frequency treatment device does not appear, and the heating effect is not uniform.

[0004] The present application provides a temperature control method based on a movable multi-source radio frequency treatment device, which adopts an FPGA as a main control chip to cooperate with three radio frequency heating sources and a temperature measurement module for common control. SUMMARY

[0005] The present application aims to provide a movable multi-source radio frequency treatment device and a temperature control method thereof to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a movable multi-source radio frequency treatment device, comprising a device shell, two steering gears are arranged in the device shell, a small radio frequency heating source is connected to one steering gear, and a temperature measurement module is connected to the small radio frequency heating source. One steering gear controls the radio frequency heating source and the temperature measurement module, and the other steering gear controls the whole rotation.

[0007] A temperature control method based on a movable multi-source radio frequency treatment device, comprising the following steps:

[0008] Step one: setting a target temperature T0 of control at the beginning of the program;

[0009] Step two: scanning a temperature link to obtain an average temperature T'0 of a working area;

[0010] The scanning process is as follows: first, the program starts, and the corresponding PWM wave is output by controlling the FPGA to control the radio frequency treatment device at a certain angle by controlling two steering gears. Figure 2Position and detect the temperature of the area (i.e. the average of the three temperature detection modules) as T1; next control the FPGA to output the corresponding PWM wave to control the two servos to control the radio frequency treatment device at Figure 3 Position, and detect the temperature of the area as T2i (where i is a flag, and the initial value is 0); next control the corresponding PWM wave to make the radio frequency treatment device rotate 60 degrees (i = i + 1) as shown in the second figure Figure 3 Position, and detect the temperature of the area as T2i, and stop after rotating twice; next control the FPGA to output the corresponding PWM wave to control the two servos to control the radio frequency treatment device at Figure 4 Position, and detect the temperature of the area as T3i, and next control the corresponding PWM wave to make the radio frequency treatment device rotate 30 degrees (i = i + 1) as shown in the second figure Figure 4 Position, and detect the temperature of the area as T3i, and stop after rotating four times; finally, take the average of all the measured temperature values as T'0;

[0011] Step three: the temperature control part calculates the target temperature T0 and the average temperature T'0 of the working area;

[0012] The temperature control process is as follows: first, the program starts, and then determines whether T'0 calculated by the last step of scanning is less than the set temperature T0;

[0013] If it is less than T0, the value of T_m is obtained using the following formula. (Since the skin area is also constantly dissipating heat during the heating process, this algorithm uses a multi-stage temperature regulation method, i.e. the target temperature of the PID control is not the set temperature value, but a temperature that positively correlates with the current temperature)

[0014]

[0015] If T'0 is greater than or equal to the set temperature T0, the program is directly ended. (Since the radio frequency treatment device only has heating function and does not have cooling capacity, in general cases, the set temperature T0 is greater than 42 degrees, and the body surface temperature of human body is generally only 20 to 30 degrees, so this situation basically does not occur;

[0016] Step four: use PID control to control the temperature of each area;

[0017] This includes controlling the FPGA to output the corresponding PWM wave to control the two servos to control the radio frequency treatment device at Figure 2 Position according to the current temperature measured by the three temperature detection modules is transmitted to the FPGA and compared with T_m to calculate Δt;

[0018]

[0019] Next, the PID algorithm is used to convert Δt into output, and three small radio frequency heating sources are controlled respectively, and the heating time is 1s. (The single heating time is too long to cause uneven heating of the whole region).

[0020] Next, the temperature of the region, i.e. the average value of the three temperature detection modules, is detected and recorded as T1.

[0021] Next, the FPGA outputs corresponding PWM waves to control two steering gears to control the radio frequency treatment device to the Figure 3 position, and the PID algorithm is used to control three small radio frequency heating sources respectively according to the steps in the previous step, and the heating time is 1s. The temperature of the region is detected and recorded as T2i (where i is a flag bit, and the initial value is 0), and then the corresponding PWM wave is controlled to rotate the radio frequency treatment device by 60 degrees (i=i+1) as Figure 3 shown in the second figure, and the temperature of the region is detected and recorded as T2i. After two rotations, the rotation is stopped.

[0022] Next, the FPGA outputs corresponding PWM waves to control two steering gears to control the radio frequency treatment device to the Figure 4 position, and the PID algorithm is used to control three small radio frequency heating sources respectively according to the steps in the previous step, and the heating time is 1s. The temperature of the region is detected and recorded as T3i, and then the corresponding PWM wave is controlled to rotate the radio frequency treatment device by 30 degrees (i=i+1) as Figure 4 shown in the second figure, and the temperature of the region is detected and recorded as T3i. After four rotations, the rotation is stopped.

[0023] Finally, all the measured temperature values are averaged and recorded as T'0, and then the process is repeated until the temperature T'0 reaches T0.

[0024] Step five: stop heating when the temperature reaches the target temperature.

[0025] In summary, the present application has the following advantages:

[0026] 1. The present application adds a scanning link before temperature control, calculates the average temperature of the whole region for the next operation, and uses a multi-stage temperature regulation method when regulating the temperature, i.e. the target temperature of the PID control is not the set temperature value, but the temperature that is positively correlated with the current temperature.

[0027] 2. The present application uses a closed-loop control algorithm to realize automatic control and reduce labor costs, and uses a multi-stage temperature regulation method to make the control region temperature more balanced. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 A temperature control method logic diagram based on a movable multi-source radio frequency treatment device of the present application;

[0030] Figure 2 A radio frequency treatment device position 1 state diagram of a movable multi-source radio frequency treatment device and its temperature control method of the present application;

[0031] Figure 3 A radio frequency treatment device position 2 state diagram of a movable multi-source radio frequency treatment device and its temperature control method of the present application;

[0032] Figure 4 A radio frequency treatment device position 3 state diagram of a movable multi-source radio frequency treatment device and its temperature control method of the present application;

[0033] Figure 5 A scanning process flow chart of a movable multi-source radio frequency treatment device and its temperature control method of the present application;

[0034] Figure 6 A temperature control process flow chart of a movable multi-source radio frequency treatment device and its temperature control method of the present application. DETAILED DESCRIPTION

[0035] All features disclosed in this specification, and / or all steps of any methods disclosed in this specification, may be combined in any combination, except combinations where at least some of the features and / or steps are mutually exclusive.

[0036] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any equivalent or similar feature. That is, unless stated otherwise, each feature is one example only of a generic series of equivalent or similar features.

[0037] The present application will now be described in detail below. Figures 1-6 The present application will now be described in detail below. Figure 1 The front, back, left, right, up and down directions of the view direction are consistent with the front, back, left, right, up and down directions of the device, Figure 1 A front view of the device of the present application, Figure 1 The directions shown are consistent with the front, back, left, right, up and down directions of the front view of the device of the present application.

[0038] Referring to Figures 1-6 The application provides a movable multi-source radio frequency treatment device and a temperature control method thereof. The device comprises a device shell 3, two steering gears are arranged in the device shell 3, a small radio frequency heating source 1 is arranged on one steering gear, a temperature measuring module 2 is arranged on the small radio frequency heating source 1, one steering gear controls the radio frequency heating source 1 and the temperature measuring module 2, and the other steering gear controls the whole rotation.

[0039] The application provides a movable multi-source radio frequency treatment device and a temperature control method thereof. The device comprises a device shell 3, two steering gears are arranged in the device shell 3, a small radio frequency heating source 1 is arranged on one steering gear, a temperature measuring module 2 is arranged on the small radio frequency heating source 1, one steering gear controls the radio frequency heating source 1 and the temperature measuring module 2, and the other steering gear controls the whole rotation.

[0040] Step one: setting a target temperature T0 for control at the beginning of the program;

[0041] Step two: scanning a temperature link to obtain an average temperature T'0 of a working area;

[0042] The scanning process is as follows: first, the program starts, corresponding PWM waves are output by a control FPGA to control two steering gears to control the radio frequency treatment device at a position and detect the temperature of the area (that is, the average value of three temperature detection modules) and record the temperature as T1; next, corresponding PWM waves are output by the control FPGA to control the two steering gears to control the radio frequency treatment device at a position and detect the temperature of the area and record the temperature as T2i (where i is a flag bit, and the initial value is 0); next, the radio frequency treatment device is rotated by 60 degrees (i=i+1) as shown in the second figure by controlling corresponding PWM waves, and the temperature of the area is detected and recorded as T2i; after rotating twice, the radio frequency treatment device is stopped; next, corresponding PWM waves are output by the control FPGA to control the two steering gears to control the radio frequency treatment device at a position and detect the temperature of the area and record the temperature as T3i; next, the radio frequency treatment device is rotated by 30 degrees (i=i+1) as shown in the second figure by controlling corresponding PWM waves, and the temperature of the area is detected and recorded as T3i; after rotating four times, the radio frequency treatment device is stopped; finally, all the detected temperature values are averaged and recorded as T'0. Figure 2 Figure 3 Figure 3 Figure 4 Figure 4

[0043] Step three: the temperature control part calculates the target temperature T0 and the average temperature T'0 of the working area;

[0044] The temperature control process is as follows: first, the program starts, whether T'0 calculated by scanning in the last step is less than the set temperature T0 is determined;

[0045] ​​​​​If T'm is less than T0, the following formula is used to obtain the value of T_m. (Since the skin area is also constantly dissipating heat during the heating process, the algorithm uses a multi-stage temperature adjustment method, i.e. the target temperature of the PID control is not the set temperature value, but a temperature that positively correlates with the current temperature)

[0046]

[0047] If T'm is greater than or equal to the set temperature T0, the program is directly ended. (Since the radio frequency treatment device only has heating function and does not have cooling capacity. In general, the set temperature T0 is greater than 42 degrees, and the body surface temperature of human body is generally only 20 to 30 degrees, so this situation basically does not occur;

[0048] Step four: use PID control the temperature of each area;

[0049] This includes controlling the FPGA to output corresponding PWM waves to control the two steering gears to control the radio frequency treatment device to the position Figure 2 The position is transmitted to the FPGA for comparison with T_m to calculate Δt;

[0050]

[0051] Next, use the PID algorithm to convert Δt into an output, and control the three small radio frequency heating sources respectively. The heating time is 1s. (The single heating time is too long, which can cause uneven heating of the entire area);

[0052] Next, detect the temperature of the region, which is the average value of the three temperature detection modules, and record it as T1;

[0053] Next, control the FPGA to output corresponding PWM waves to control the two steering gears to control the radio frequency treatment device to the position Figure 3 , and use the PID algorithm of the previous step to control the three small radio frequency heating sources respectively. The heating time is 1s. Detect the temperature of the region and record it as T2i (where i is a flag bit, the initial value is 0). Next, control the corresponding PWM wave to make the radio frequency treatment device rotate 60 degrees (i=i+1) as Figure 3 shown in the second figure, and detect the temperature of the region T2i. After two rotations, stop;

[0054] Next, control the FPGA to output corresponding PWM waves to control the two steering gears to control the radio frequency treatment device to the position Figure 4 , and use the PID algorithm of the previous step to control the three small radio frequency heating sources respectively. The heating time is 1s. Detect the temperature of the region and record it as T3i. Next, control the corresponding PWM wave to make the radio frequency treatment device rotate 30 degrees (i=i+1) as Figure 4The second graph shows, and the temperature of the region is detected as T3i, and stops after four rotations;

[0055] Finally, all measured temperature values are averaged as T'0, and the process is repeated until the temperature T'0 reaches T0;

[0056] Step five: stop heating when the temperature reaches the target temperature.

[0057] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited thereto, and any changes or substitutions without creative labor should be covered within the protection scope of the invention. Therefore, the protection scope of the invention should be limited to the protection scope defined in the claims.

Claims

1. A temperature control method based on a portable multi-source radiofrequency therapy device, characterized in that: Includes the following steps: Step 1: Set the target temperature T0 at the beginning of the program; Step 2: The temperature scanning step is used to obtain the average temperature T'0 of the working area; Step 3: The temperature control section calculates the target temperature T0 and the average temperature T'0 of the working area; Step 4: Use PID control to regulate the temperature in each zone; Step 5: Stop heating when the target temperature is reached; Step three also includes the following steps: S3.1 First, the program starts by determining whether the T'0 calculated in the previous scan is less than the set temperature T0; If S3.2 is less than T0, then use the formula to obtain the value of T_m; S3.3 If T'0 is greater than or equal to the set temperature T0, then the program will terminate directly; Step four also includes the following steps: S4.1 controls the FPGA to output the corresponding PWM wave. The current temperature measured by the three temperature measurement modules is transmitted to the FPGA and compared with T_m to calculate Δt. S4.2 The PID algorithm is used to convert Δt into an output quantity, which controls three small radio frequency heating sources respectively, with a heating time of 1 second. S4.3 The temperature of the detection area, i.e., the average value of the three temperature detection modules, is denoted as T1; S4.4 controls the FPGA to output the corresponding PWM wave to make the treatment device rotate, and uses the PID algorithm to control the three small radio frequency heating sources respectively, with a heating time of 1 second; the temperature of the detection area is recorded as T2i, and the corresponding PWM wave is controlled to make the radio frequency treatment device rotate 60 degrees, and the temperature of the area is detected as T2i. After rotating twice, it stops. S4.5 controls the FPGA to output corresponding PWM waves to make the treatment device rotate. It controls three small radio frequency heating sources through PID algorithm, with a heating time of 1 second, and detects the temperature of the area and records it as T3i. It controls the corresponding PWM waves to make the radio frequency treatment device rotate 30 degrees and detects the temperature of the area and records it as T3i. It stops after rotating four times.

2. The temperature control method based on a portable multi-source radiofrequency therapy device according to claim 1, characterized in that: Step two also includes the following steps: S2.1 controls the FPGA to output a corresponding PWM wave, thereby controlling the treatment device and detecting the area temperature, which is recorded as T1. S2.2 controls the FPGA to output a corresponding PWM wave to change the position of the treatment device and detects the temperature of the area, which is recorded as T2i. S2.3 controls the FPGA to output a corresponding PWM wave to rotate the radiofrequency therapy device by 60 degrees, and detects the temperature of the area (T2i). The device stops after rotating twice. S2.4 controls the FPGA to output a corresponding PWM wave to make the treatment device rotate and detects the temperature of the area, which is recorded as T3i; S2.5 controls the FPGA to output a corresponding PWM wave to make the treatment device rotate 30 degrees, and detects the temperature of the area and records it as T3i. It stops after rotating four times. S2.6 Take the average of all measured temperature values ​​and record it as T'0.

3. The temperature control method based on a portable multi-source radiofrequency therapy device according to claim 1, characterized in that: Take the average of all measured temperature values ​​and record it as T'0. Then repeat this process until the temperature T'0 reaches T0.

4. A portable multi-source radiofrequency ablation device, employing the temperature control method for portable multi-source radiofrequency ablation as described in claim 3, characterized in that: The device includes a housing (3), which contains two servo motors. One servo motor is connected to a small radio frequency heating source (1), and the small radio frequency heating source (1) is connected to a temperature measuring module (2). One of the servo motors controls the radio frequency heating source (1) and the temperature measuring module (2), while the other servo motor controls the rotation of the entire device.

Images