Spinal nerve distribution point teaching model control circuit and teaching model equipment

Abstract

The invention provides a spinal nerve distribution point teaching model control circuit and teaching model equipment, and the control circuit comprises at least one touch unit which is used for sensing a touch action to generate a touch signal; the control unit is used for responding to the touch signal to generate a corresponding first signal, and the first signal is at least used for recording touch position information; the signal conversion unit is used for converting the first signal into a second signal and sending the second signal to external equipment, or is used for receiving a third signal sent by the external equipment, converting the third signal into a fourth signal and then transmitting the fourth signal to the control unit; the touch unit and the signal conversion unit are both in communication connection with the control unit; by adopting the spinal nerve distribution point teaching model equipment provided by the invention, the communication function between the control unit and the external equipment is realized. The learning progress of a user can be recorded, related functions of the teaching model can be controlled through external equipment, and the defects that an existing teaching model is single in control means and cannot record the learning progress are effectively overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching tools, and more specifically, to a spinal nerve distribution point teaching model control circuit and a teaching model device. Background Art

[0002] In the prior art, human models have been widely used as medical teaching tools, which is a relatively common technical solution. Through these models, learners can intuitively observe and understand the specific locations of acupuncture points, meridians, blood vessels, muscles and other tissues in the human body structure, so as to master relevant knowledge more efficiently. This teaching method is not only vivid, but also convenient for learners to establish an overall understanding of the human body structure.

[0003] In order to further improve the teaching effect and help students understand the relevant knowledge more deeply, some human models have been improved in design. Touch-sensitive buttons have been added to key locations of the model, such as specific acupuncture points or important organ areas. When students touch these buttons, the touch control system inside the model triggers the corresponding operation and plays detailed knowledge information related to the touch position through the speaker. In this way, students can obtain the required theoretical explanations in real time while operating, so as to learn medical knowledge more efficiently. This design, which combines interactivity and intuitiveness, not only enhances the fun of learning, but also significantly improves the practicality and effectiveness of teaching.

[0004] For example, the Chinese invention patent (application number: 201811191698.4) proposes an intelligent robot with medical and household composite functions, including: a human body simulation model, a support base, an interactive human body sign prompting device and a control system. The control system includes an information acquisition module, an information storage module, an information processing module and an execution terminal. The control system can realize medical and health care human-computer interaction functions and household auxiliary functions. The medical and health care human-computer interaction functions include one or more of physical sign recognition, medical consultation, and health consultation, and may specifically include voice recognition and light indication of acupoints and / or meridians, voice output, and visual information output functions, intelligent consultation functions and active diagnosis functions. The household auxiliary functions include one or more of intelligent tutoring, interactive entertainment and intelligent control of home appliances.

[0005] However, the above-mentioned intelligent robot still has some obvious shortcomings. First, the robot only supports voice interaction to control the robot to prompt acupoint-related information with lights, or to trigger voice playback of relevant knowledge by touching the corresponding position. This single interaction method limits the user's operation options, and the robot cannot be controlled by other operating devices. In addition, the robot lacks the function of recording and managing students' learning information, and cannot track and evaluate students' learning progress. This defect makes it difficult for the robot to achieve targeted and personalized teaching and guidance during the teaching process, affecting its comprehensive practicality and teaching effect as a medical teaching tool. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a spinal nerve distribution point teaching model control circuit and a teaching model device to overcome the shortcoming that the existing teaching equipment cannot record the learning progress.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: In a first aspect, the present application provides a spinal nerve distribution point teaching model control circuit, comprising: At least one touch unit, used for sensing a touch action to generate a touch signal; A control unit, configured to respond to the touch signal to generate a corresponding first signal, wherein the first signal is at least used to record touch position information; a signal conversion unit, used to convert the first signal into a second signal and send the second signal to an external device, or to receive a third signal sent by an external device, convert the third signal into a fourth signal and then transmit the fourth signal to a control unit; A verification unit, used to provide a verification function for the control unit; The verification unit, the touch unit, and the signal conversion unit are all connected to the control unit for communication.

[0008] In one embodiment, the signal conversion unit specifically includes: a signal conversion chip; a first input end of the signal conversion chip is communicatively connected to the first output end of the control unit, for receiving a first signal output by the control unit; a first output end of the signal conversion chip is communicatively connected to the first input end of the control unit, for sending a fourth signal to the control unit; a second input end of the signal conversion chip is communicatively connected to the output end of the external device, for receiving a third signal output by the external device; a second output end of the signal conversion chip is communicatively connected to the input end of the external device, for sending a second signal to the external device.

[0009] In one embodiment, the signal conversion unit further includes: a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor and a thirteenth resistor; the first pin of the signal conversion chip is connected to the third pin of the signal conversion chip through the third capacitor; the fourth pin of the signal conversion chip is connected to the fifth pin of the signal conversion chip through the sixth capacitor; the eleventh pin of the signal conversion chip is communicatively connected to the first output end of the control unit; the twelfth pin of the signal conversion chip is communicatively connected to the first input end of the control unit through the twelfth resistor; the thirteenth pin of the signal conversion chip is connected to the first input end of the control unit through the twelfth resistor; The thirteenth resistor is communicatively connected to the output end of the external device; the fourteenth pin of the signal conversion chip is communicatively connected to the input end of the external device through the eleventh resistor; the fifteenth pin of the signal conversion chip is grounded; the sixth pin of the signal conversion chip is grounded through the fifth capacitor; the second pin of the signal conversion chip is grounded through the fourth capacitor and the ninth resistor in sequence; the second pin of the signal conversion chip is connected to the sixteenth pin of the signal conversion chip through the fourth capacitor and the tenth resistor in sequence; the sixteenth pin of the signal conversion chip is also electrically connected to the 3.3V voltage end; the sixteenth pin of the signal conversion chip is also grounded through the second capacitor.

[0010] In one embodiment, the control unit includes: a first control chip; a first input terminal of the first control chip is communicatively connected to the twelfth pin of the signal conversion chip through the twelfth resistor; a first output terminal of the first control chip is communicatively connected to the eleventh pin of the signal conversion chip; a second input terminal of the first control chip and a third input terminal of the first control chip are communicatively connected to the output terminals of the two touch units respectively.

[0011] In one embodiment, the 11th pin, the 28th pin, the 50th pin, the 75th pin and the 100th pin of the first control chip are all connected to the 3.3V voltage terminal; the 10th pin, the 27th pin, the 49th pin, the 74th pin and the 99th pin of the first control chip are all grounded; the 69th pin of the first control chip is communicatively connected to the 12th pin of the signal conversion chip through the 12th resistor; the 68th pin of the first control chip is communicatively connected to the 11th pin of the signal conversion chip; the 48th pin and the 79th pin of the first control chip are both communicatively connected to the touch unit.

[0012] In one embodiment, the touch unit includes a second control chip, at least one electrode sheet and at least one current-limiting resistor; each of the electrode sheets is communicatively connected to the second control chip through each of the current-limiting resistors; and the second control chip is communicatively connected to the control unit.

[0013] In one embodiment, the touch unit specifically includes: fifteen electrode sheets and fifteen current-limiting resistors, and the fifteen electrode sheets are respectively communicated with the second control chip through the fifteen current-limiting resistors; the fifteenth and sixteenth pins of the second control chip are both communicated with the control unit.

[0014] In one embodiment, the spinal nerve distribution point teaching model device also includes: a fixed layer, an FPC soft board interlayer and a simulated skin layer; one side of the FPC soft board interlayer is fixedly connected to the fixed layer; the other side of the FPC soft board interlayer is fixedly connected to the simulated skin layer; an electrode sheet is embedded inside the FPC soft board interlayer, and the electrode sheet is connected to the touch unit.

[0015] In one embodiment, the electrode sheet is circular in design, and the diameter of the electrode sheet is 20 mm.

[0016] In one embodiment, the spinal nerve distribution point teaching model device further includes: a voice playback unit, which is used to respond to the control signal output by the control unit and play the corresponding predetermined voice data; the voice playback unit is communicatively connected with the control unit.

[0017] In one embodiment, the verification unit includes a verification chip, a twenty-first resistor, a twenty-second resistor and a fourteenth capacitor. The first, second, third and fourth pins of the verification chip are grounded; the fifth and sixth pins of the verification chip are both connected to the first control chip U3; the seventh pin of the verification chip is grounded; the seventh pin of the verification chip is also electrically connected to the 3.3V voltage terminal through the fourteenth capacitor; the fifth pin of the verification chip is connected to the 3.3V voltage terminal through the twenty-second resistor; and the sixth pin of the verification chip is connected to the 3.3V voltage terminal through the twenty-first resistor.

[0018] In a second aspect, the present application provides a spinal nerve distribution point teaching model device, comprising a spinal nerve distribution point teaching model control circuit as described in any one of the first aspects, and a humanoid support seat; The humanoid support seat is wrapped with a fixing layer, an FPC soft board interlayer and a simulated skin layer; The first surface of the fixing layer is fixedly connected to the humanoid support seat; The second surface of the fixed layer is fixedly connected to the first surface of the FPC soft board interlayer; The second surface of the FPC soft board interlayer is fixedly connected to the simulated skin layer; The electrode sheet is embedded in the FPC soft board interlayer.

[0019] In one embodiment, the electrode sheet is circular in design, and the diameter of the electrode sheet is 20 mm.

[0020] In summary, the present invention has the following beneficial effects: a spinal nerve distribution point teaching model control circuit and teaching model device, the control circuit includes: at least one touch unit for sensing touch action to generate a touch signal; a control unit for responding to the touch signal to generate a corresponding first signal, the first signal at least used to record touch position information; a signal conversion unit for converting the first signal into a second signal and sending it to an external device, or for receiving a third signal sent by an external device, converting the third signal into a fourth signal and then transmitting it to the control unit; the touch unit and the signal conversion unit are both connected to the control unit in communication; the spinal nerve distribution point teaching model device of the present invention is used to realize the communication function between the control unit and the external device. It can not only record the user's learning progress, but also control the relevant functions of the teaching model through external devices, effectively overcoming the shortcomings of the existing teaching model that the control means are single and the learning progress cannot be recorded. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A control circuit structure block diagram of a spinal nerve distribution point teaching model of the present invention; Figure 2 This is a schematic diagram of a signal conversion unit circuit in an embodiment of the present invention; Figure 3 This is a schematic diagram of the circuit of the first control chip in an embodiment of the present invention; Figure 4 It is a schematic diagram of a crystal oscillator, a filter circuit, and a reset circuit of a control unit in an embodiment of the present invention; Figure 5 This is a schematic diagram of the first second control chip circuit in an embodiment of the present invention; Figure 6 is a schematic diagram of fifteen connectors for connecting to electrode sheets in an embodiment of the present invention; Figure 7 is a schematic diagram of a second second control chip circuit in an embodiment of the present invention; Figure 8 is a schematic diagram of fifteen other connectors for connecting to electrode sheets in an embodiment of the present invention; Fig. 9 A schematic diagram of the hierarchical structure of a teaching model according to an embodiment of the present invention; Fig.10 is a schematic diagram of an electrode sheet according to an embodiment of the present invention; Fig.11 This is a circuit diagram of a voice playback unit according to an embodiment of the present invention; Fig.12 The RTC unit circuit schematic diagram of an embodiment of the present invention; Fig.13 This is a schematic diagram of a circuit of an LED module according to an embodiment of the present invention; Fig.14 The original diagram of the EEPRROM circuit of an embodiment of the present invention; Fig.15 This is a front view of the teaching model according to an embodiment of the present invention; Fig.16 This is a schematic diagram of the back appearance of a teaching model according to an embodiment of the present invention; Fig.17 A schematic diagram of the use process of the teaching model and the computer communication connection according to an embodiment of the present invention; In the figure: 1. touch unit; 2. control unit; 3. signal conversion unit; 4. voice playback unit; 101. simulated skin layer; 102. FPC soft board interlayer; 103. fixing layer. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0023] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0024] Those of ordinary skill in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0025] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0026] In several embodiments provided in the present application, any function can be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for enabling a device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0027] The above is only a specific implementation of the present application. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application should be based on the protection scope of the claims.

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Embodiment 1 In order to solve the above problems, the present invention provides a spinal nerve distribution point teaching model control circuit, such as Figure 1 As shown, a spinal nerve distribution point teaching model device is characterized by comprising: At least one touch unit 1, used for sensing a touch action to generate a touch signal; A control unit 2, configured to respond to a touch signal to generate a corresponding first signal, wherein the first signal is at least used to record touch position information; A signal conversion unit 3, used for converting the first signal into a second signal and sending the second signal to an external device, or for receiving a third signal sent by an external device, converting the third signal into a fourth signal and then transmitting the fourth signal to a control unit; A verification unit, used to provide a verification function for the control unit; The verification unit, the touch unit 1 and the signal conversion unit 3 are all connected to the control unit 2 for communication.

[0030] In summary, the present application can generate a touch signal when sensing that a user touches a corresponding position by setting a touch unit on the spinal nerve distribution point teaching model device. The control unit is used to execute a predetermined program; for example, when the user touches the cervical nerve, the control unit can control the voice playback unit to play the content associated with the cervical nerve when receiving the touch signal; when the user touches the lumbar nerve, the control unit can control the voice playback unit to play the content associated with the lumbar nerve when receiving the touch signal.

[0031] In order to record the user's learning progress, the control unit needs to interact with the external device so that the voice information broadcast each time the teaching model is touched can be recorded by the external device. At the same time, the control unit can also receive control signals through the external device to complete corresponding actions in response to the external control signal. In order to ensure stable communication between the control unit and the external device, the present application sets a signal conversion unit on the teaching model device. The signal conversion unit converts the first signal output by the control unit into a second signal and sends it to the external device, so that the external device can receive and store the user's learning progress. In addition, the signal conversion unit also receives the third signal sent by the external device, converts it into a fourth signal and passes it to the control unit so that the control unit executes the corresponding control instruction.

[0032] The external device can be a computer, or other mobile communication devices such as a mobile phone or a tablet. Through the function of the signal conversion unit, stable communication between the control unit and the external device is achieved, thereby ensuring the effectiveness of the learning progress record and the external control function.

[0033] The control unit generates a first signal in response to the touch signal. The first signal includes the current touch position information, which is used by the external device to record the user's learning progress. The signal conversion unit converts the first signal into a second signal based on the communication protocol to improve the stability of signal transmission. At the same time, the external device sends a third signal (control signal), and the signal conversion unit converts it into a fourth signal that can be recognized by the control unit through the communication protocol to ensure that the control unit can execute the instruction. The entire process realizes two-way conversion of signals through the signal conversion unit to ensure the stability and compatibility of communication, so as to complete the functions of learning progress recording and instruction execution.

[0034] In summary, the present application realizes the communication function between the control unit and the external device by setting a signal conversion unit in the teaching model. It can not only record the user's learning progress, but also control the relevant functions of the teaching model through the external device, effectively overcoming the shortcomings of the existing teaching model with a single control method and unable to record the learning progress.

[0035] In one embodiment, the signal conversion unit specifically includes: a signal conversion chip U4; the first input end of the signal conversion chip U4 is communicatively connected to the first output end of the control unit, for receiving the first signal output by the control unit; the first output end of the signal conversion chip U4 is communicatively connected to the first input end of the control unit, for sending a fourth signal to the control unit; the second input end of the signal conversion chip U4 is communicatively connected to the output end of the external device, for receiving the third signal output by the external device; the second output end of the signal conversion chip U4 is communicatively connected to the input end of the external device, for sending a second signal to the external device.

[0036] In actual use, the signal conversion chip U4 is specifically an SP2323 chip, which can realize the mutual conversion between TTL signals and RS-232 signals; wherein, the TTL signal is used to communicate with the communication interface of the control unit; the RS-232 signal is used to communicate with the interface of the host computer. The control unit, such as a single-chip microcomputer, usually sends and receives data through the UART interface, and the output is a TTL signal. The TTL signal has a small level range and is suitable for internal communication of microcontrollers and other digital logic devices. In the case of long-distance communication with external devices, the TTL signal cannot meet this demand, and the TTL signal needs to be converted into a signal with stronger anti-interference ability. In this application, the RS-232 signal is used. The high voltage design of RS-232 increases the anti-interference ability of the signal, but it is incompatible with the TTL signal.

[0037] In this embodiment, the first signal is a TTL signal output by the control unit containing the current user's learning progress; after the first signal passes through the signal conversion chip U4, it generates an RS-232 signal containing the current user's learning progress, that is, the second signal, and transmits it to the external device. The third signal is an RS-232 signal output by the external device. After the third signal is converted by the signal conversion chip U4, it generates a fourth signal, which is a TTL signal that can be recognized by the single-chip microcomputer.

[0038] The standard transmission rates specified by RS-232 are 50b / s, 75b / s, 110b / s, 150b / s, 300b / s, 600b / s, 1200b / s, 2400b / s, 4800b / s, 9600b / s, and 19200b / s, which can flexibly adapt to devices with different speeds. For slow peripherals, a lower transmission rate can be selected; conversely, a higher transmission rate can be selected. Secondly, the RS-232 signal specifies that the level of logic "1" is -5V~-15V, and the level of logic "0" is +5V~+15V. By adjusting the level logic, the anti-interference ability can be improved and the communication distance can be increased. The noise tolerance of RS-232 is 2V, and the receiver will be able to identify signals as high as +3V as logic "0" and signals as low as -3V as logic "1". Since RS-232 uses serial transmission and converts the TTL level of the microcomputer to the RS-232C level, its transmission distance can generally reach 30 meters. If a photoelectrically isolated 20 mA current loop is used for transmission, its transmission distance can reach 1000 meters. In addition, if a modem is added to the RS-232 bus interface and transmitted through wired, wireless or optical fiber, its transmission distance can be farther, which is more suitable for enabling teaching model equipment to achieve long-distance communication with the outside.

[0039] In one embodiment, the signal conversion unit further includes: a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12 and a thirteenth resistor R13; the first pin of the signal conversion chip U4 is connected to the third pin of the signal conversion chip U4 through the third capacitor C3; the fourth pin of the signal conversion chip U4 is connected to the fifth pin of the signal conversion chip U4 through the sixth capacitor C6; the eleventh pin of the signal conversion chip U4 is communicatively connected to the first output end of the control unit; the twelfth pin of the signal conversion chip U4 is communicatively connected to the first input end of the control unit through the twelfth resistor R12; the first pin of the signal conversion chip U4 is connected to the first input end of the control unit through the twelfth resistor R12; the second pin of the signal conversion chip U4 is connected to the first input end of the control unit through the twelfth resistor R12; the first ... The thirteenth pin is communicatively connected with the output end of the external device through the thirteenth resistor R13; the fourteenth pin of the signal conversion chip U4 is communicatively connected with the input end of the external device through the eleventh resistor R11; the fifteenth pin of the signal conversion chip U4 is grounded; the sixth pin of the signal conversion chip U4 is grounded through the fifth capacitor C5; the second pin of the signal conversion chip U4 is grounded through the fourth capacitor C4 and the ninth resistor R9 in sequence; the second pin of the signal conversion chip U4 is connected to the sixteenth pin of the signal conversion chip U4 through the fourth capacitor C4 and the tenth resistor R10 in sequence; the sixteenth pin of the signal conversion chip U4 is also electrically connected to the 3.3V voltage end; the sixteenth pin of the signal conversion chip U4 is also grounded through the second capacitor C2.

[0040] Specifically, if Figure 2 As shown, the eleventh pin of the signal conversion chip U4 is T1IN, which is used to connect with the control unit to receive the TTL signal output by the control unit, the twelfth pin of the signal conversion chip U4 is R1OUT, which is used to output the converted TTL signal to the control unit, the thirteenth pin of the signal conversion chip is R1IN, which is used to receive the RS-232 signal input by the external device, and the fourteenth pin of the signal conversion chip U4 is T1OUT, which is used to output the converted RS-232 signal to the external device. The signal conversion chip U4 is connected to the external device through the connector J2 to facilitate connecting or disconnecting the communication with the external device.

[0041] In one embodiment, the control unit includes: a first control chip U3; the first input end of the first control chip U3 is communicatively connected to the twelfth pin of the signal conversion chip U4 after passing through the twelfth resistor; the first output end of the first control chip U3 is communicatively connected to the eleventh pin of the signal conversion chip U4; the second input end of the first control chip U3 and the third input end of the first control chip U3 are respectively communicatively connected to the output ends of the two touch units.

[0042] In this embodiment, the first control chip U3 is a single-chip microcomputer chip, and the specific model is: STM32F103VET6. The single-chip microcomputer chip can execute a predetermined program based on the received trigger signal, that is, after the single-chip microcomputer receives the touch signal output by the touch unit, it can determine which part is touched to send the touch signal based on the touch signal, and then play the voice based on the touch signal, and generate a first signal based on the part corresponding to the touch signal, and send it to the host computer for recording and statistics to determine the user's learning progress.

[0043] In one embodiment, the 11th, 28th, 50th, 75th and 100th pins of the first control chip U3 are all connected to the 3.3V voltage terminal; the 10th, 27th, 49th, 74th and 99th pins of the first control chip U3 are all grounded; the 69th pin of the first control chip U3 is communicatively connected to the 12th pin of the signal conversion chip U4 through the 12th resistor; the 68th pin of the first control chip U3 is communicatively connected to the 11th pin of the signal conversion chip U4; the 48th and 79th pins of the first control chip U3 are both communicatively connected to the touch unit.

[0044] Specifically, the second input terminal and the third input terminal of the single-chip microcomputer are connected to two touch units respectively, supporting multi-touch, and can accurately determine the specific touch position to meet the needs of complex touch scenarios. Multiple pins such as the 11th and 28th pins are connected to the 3.3V voltage terminal, and multiple pins such as the 10th and 27th pins are grounded, providing a good power distribution and grounding loop, reducing signal interference caused by power noise or inconsistent ground potential; through program control, when a touch signal is detected, the single-chip microcomputer can automatically trigger the voice broadcast related to the touch position, which improves the interactivity and intelligence of teaching.

[0045] In one embodiment, the control unit also includes: a first crystal oscillator J6 and a second crystal oscillator Y1; the two ends of the first crystal oscillator J6 are respectively connected to the eighth and ninth pins of the single-chip microcomputer, the first crystal oscillator J6 is a system clock, and the internal clock of the single-chip microcomputer or the external 32.768K clock can be selected; the two ends of the second crystal oscillator Y1 are respectively connected to the twelfth and thirteenth pins of the single-chip microcomputer, and the second crystal oscillator Y1 is a high-speed clock, and the internal high-speed crystal oscillator or the external high-speed crystal oscillator with a speed of 8MHz can be selected; the dual crystal oscillator design provides a flexible clock source selection, which can be adapted to a variety of application scenarios. The control unit also includes a filter circuit, which uses parallel capacitors to achieve filtering of the 3.3V voltage end, and C7-C11 is the minimum system filter capacitor of the single-chip microcomputer power supply, which is used to ensure the power supply stability when the system power enters the single-chip microcomputer. SW1 is a reset button. When the program needs to be re-run, press the button to short-circuit GND. The system resets and re-reads the single-chip microcomputer; the reset circuit provides a stable recovery mechanism for the system to prevent system stagnation caused by operation errors or program crashes. FB1 and FB2 are used to isolate and distinguish between analog power supply and digital power supply. By distinguishing between analog power supply and digital power supply, the interference between the two is reduced, ensuring the accuracy of analog signal processing and the integrity of digital signals.

[0046] In one embodiment, the touch unit includes a second control chip, at least one electrode sheet and at least one current-limiting resistor; each of the electrode sheets is communicatively connected to the second control chip through each of the current-limiting resistors; and the second control chip is communicatively connected to the control unit.

[0047] In this embodiment, the touch unit is composed of a plurality of electrode sheets, a plurality of current resistors and a second control chip, wherein the second control chip adopts a microcontroller chip of model CA51M151P6A; the electrode sheet is arranged at the position of the teaching model, and is electrically connected to the corresponding port of the second control chip through each resistor by means of a wire, when the user touches the position of the electrode sheet, a capacitor can be formed between the electrode sheet, thereby changing the level of the port corresponding to the second control chip, and the second control chip can receive the touch sensing signal. And each electrode sheet corresponds to a port respectively, and the second control chip can generate a serial port code based on the port receiving the control signal, and input it into the first control chip U3, so that the first control chip U3 can execute a predetermined instruction according to the received serial port signal.

[0048] In one embodiment, the touch unit specifically includes: fifteen electrode sheets and fifteen current-limiting resistors; the fifteen electrode sheets are respectively communicated with the second control chip through the fifteen current-limiting resistors; the fifteenth and sixteenth pins of the second control chip are both communicated with the control unit.

[0049] In the present application, there are two touch units, both of which include a second control chip and fifteen electrode sheets, so the teaching model has a total of 30 touch areas for the user to touch. Figure 3 As shown, the two second control chips are respectively connected to the 47th, 48th, 78th and 79th pins of the first control chip U3 for communication. On the one hand, they can transmit the touch signal to the first control chip U3, and on the other hand, they can receive the control signal transmitted by the first control chip U3 to perform corresponding actions. For example, LED lamp beads can be connected to each interface of the second control chip. When the spinal nerves at a specific position need to be displayed, the control signal transmitted by the first control chip U3 can be received, and then the LED lamp beads of the corresponding interface can be controlled to emit light according to the control signal to give a prompt.

[0050] In one embodiment, it further includes: a voice playing unit 4, which is used to respond to the control signal output by the control unit and play the predetermined voice data accordingly; the voice playing unit is communicatively connected with the control unit.

[0051] In practical applications, such as Fig.11 As shown, the teaching model is also provided with a voice playing unit for playing voice information, and the voice playing unit includes a music main control chip U23, which specifically adopts a control chip of model BY9001-24QS, and can play a predetermined music file correspondingly based on the play instruction issued by the first control chip U3, and the music file is stored in the SD card in a predetermined format and a predetermined name for reading by the music main control chip U23. The voice playing unit also includes a power amplifier chip U24, which is used to amplify the music signal to drive the speaker to play the corresponding sound. Specifically, the power amplifier chip U24 adopts a power amplifier chip of model MIX2002 to drive the speaker to work.

[0052] In one embodiment, Fig.14As shown, the verification unit includes a verification chip, a twenty-first resistor, a twenty-second resistor and a fourteenth capacitor. The first pin, the second pin, the third pin and the fourth pin of the verification chip are grounded; the fifth pin and the sixth pin of the verification chip are connected to the first control chip U3; the seventh pin of the verification chip is grounded; the seventh pin of the verification chip is also electrically connected to the 3.3V voltage terminal through the fourteenth capacitor; the fifth pin of the verification chip is connected to the 3.3V voltage terminal through the twenty-second resistor; the sixth pin of the verification chip is connected to the 3.3V voltage terminal through the twenty-first resistor, which is used for system verification. When the system starts, the information in the EEPROM is read. When the information read is consistent with the pre-stored information, the system executes subsequent actions. In this embodiment, the EEPROM chip specifically uses a chip with a model of AT24C02M / TR to implement system verification. The system verification of EEPROM is mainly based on cyclic redundancy check (CRC) technology to ensure the integrity of stored data. First, a 16-bit CRC checksum is calculated for the original data (a hash value is generated by polynomial division), the checksum is appended to the end of the data, and stored in the EEPROM together with the data; the data and the stored CRC checksum are read from the EEPROM; the CRC value is recalculated for the read data; the newly calculated CRC is compared with the stored checksum, and if they are inconsistent, the data is considered abnormal.

[0053] In one embodiment, Fig.13 As shown, this teaching model also comes with an LED indicator light to indicate the current system status and the corresponding button status; the signal indication can be customized according to actual usage.

[0054] In one embodiment, Fig.12 As shown in the figure, this teaching model is also equipped with an RTC unit. The VCC_RTC and VBAT in the figure provide power for the RTC module. VCC_RTC is the main system power supply. When the main system is powered, the RTC module uses VCC_RTC first. VBAT is the backup battery (BT1). When the main power fails (such as power outage), the RTC switches to battery power to ensure the continuous operation of the clock. When VCC_RTC is powered, the RTC uses the main power supply. When VCC_RTC is not powered, the diode allows the RTC to automatically switch to battery power; the function of the RTC is realized through seamless switching between the main power supply and the backup battery, stable power supply of the filter capacitor, and a simple Schottky diode design. This design ensures that the RTC module can continue to operate in the event of a power outage.

[0055] Embodiment 2 In one embodiment, the present application also provides a method for interacting with the above model running on a computer system, such as Fig.17As shown, the method includes: when the student uses it, first log in with the account password. After logging in, the software can automatically load the student's current learning progress and give relevant exercises. When the student touches the relevant area on the model, the content displayed on the computer monitor can be magnified according to the part touched by the student, and it is judged whether the position touched by the student is correct. If it is correct, it will switch to the next area. If it is not correct, the relevant tutorial will be played on the computer interface, and the questions will be reviewed again. After the student completes the training and learning of the current area, the software can store the current learning progress data in the database to facilitate the student's subsequent learning.

[0056] Embodiment 3 like Fig.15 , Fig.16 As shown, this embodiment provides a spinal nerve distribution point teaching model device, including a spinal nerve distribution point teaching model control circuit as described in any one of the first embodiments, and a humanoid support seat; the humanoid support seat is wrapped with a fixed layer, an FPC soft board interlayer and a simulated skin layer; the first surface of the fixed layer is fixedly connected to the humanoid support seat; the second surface of the fixed layer is fixedly connected to the first surface of the FPC soft board interlayer; the second surface of the FPC soft board interlayer is fixedly connected to the simulated skin layer; the interior of the FPC soft board interlayer is inlaid with an electrode sheet, and the electrode sheet is connected to the touch unit.

[0057] In one embodiment, the electrode sheet is circular in design, and the diameter of the electrode sheet is 20 mm.

[0058] like Fig. 9 As shown, the teaching model device consists of a three-layer structure. The innermost layer is the fixed layer 103, which provides support for the entire model and ensures that the model maintains a stable human body shape; the middle layer is the FPC soft board interlayer 102, which fits tightly with the fixed layer, so that the circuit board and the fixed layer 103 have the same shape, ensuring the rationality of the circuit layout and the integrity of the shape; the outermost layer is the simulated skin layer 101, which not only simulates the human epidermis and improves the realism of the model, but also can print spinal nerve information on the surface according to actual needs, so that users can observe the information of related positions while touching. The overall design enhances the functionality and appearance of the teaching model, and significantly improves the user's learning experience and interactive effect.

[0059] Specifically, if Fig.10 As shown; the electrode sheet is used to sense the human finger to change the capacitance value and generate a touch signal. Therefore, the touch electrode sheet needs to be designed with reference to the contact area of ​​the human finger. In this embodiment, the electrode sheet is circular in shape with a diameter of 20 mm to avoid the contact area being too small to be triggered, and the dark gray strip area on the right side of the electrode sheet is a metal copper leakage area, which is used to connect to the wire to achieve electrical connection with the second control chip.

[0060] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0061] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A spinal nerve distribution point teaching model control circuit, characterized in that: include: At least one touch unit, used for sensing a touch action to generate a touch signal; A control unit, configured to respond to the touch signal to generate a corresponding first signal, wherein the first signal is at least used to record touch position information; a signal conversion unit, used to convert the first signal into a second signal and send the second signal to an external device, or to receive a third signal sent by an external device, convert the third signal into a fourth signal and then transmit the fourth signal to a control unit; A verification unit, used to provide a verification function for the control unit; The verification unit, the touch unit, and the signal conversion unit are all connected to the control unit for communication.

2. A spinal nerve distribution point teaching model control circuit according to claim 1, characterized in that: The signal conversion unit specifically includes: a signal conversion chip; The first input terminal of the signal conversion chip is communicatively connected with the first output terminal of the control unit, and is used to receive the first signal output by the control unit; The first output terminal of the signal conversion chip is communicatively connected to the first input terminal of the control unit, and is used to send a fourth signal to the control unit; The second input terminal of the signal conversion chip is communicatively connected to the output terminal of the external device, and is used to receive a third signal output by the external device; The second output terminal of the signal conversion chip is communicatively connected to the input terminal of the external device, and is used to send a second signal to the external device.

3. A spinal nerve distribution point teaching model control circuit according to claim 2, characterized in that: The signal conversion unit further includes: a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor and a thirteenth resistor; The first pin of the signal conversion chip is connected to the third pin of the signal conversion chip through the third capacitor; The fourth pin of the signal conversion chip is connected to the fifth pin of the signal conversion chip through the sixth capacitor; The eleventh pin of the signal conversion chip is communicatively connected to the first output terminal of the control unit; The twelfth pin of the signal conversion chip is communicatively connected to the first input terminal of the control unit through the twelfth resistor; The thirteenth pin of the signal conversion chip is communicatively connected to the output end of the external device through the thirteenth resistor; The fourteenth pin of the signal conversion chip is communicatively connected to the input terminal of the external device through the eleventh resistor; The fifteenth pin of the signal conversion chip is grounded; The sixth pin of the signal conversion chip is grounded after passing through the fifth capacitor; The second pin of the signal conversion chip is connected to the ground through the fourth capacitor and the ninth resistor in sequence; the second pin of the signal conversion chip is connected to the sixteenth pin of the signal conversion chip through the fourth capacitor and the tenth resistor in sequence; The sixteenth pin of the signal conversion chip is also electrically connected to the 3.3V voltage terminal; the sixteenth pin of the signal conversion chip is also grounded after passing through the second capacitor.

4. A spinal nerve distribution point teaching model control circuit according to claim 3, characterized in that: The control unit includes: a first control chip; The first input terminal of the first control chip is communicatively connected to the twelfth pin of the signal conversion chip through the twelfth resistor; The first output terminal of the first control chip is communicatively connected to the eleventh pin of the signal conversion chip; The second input terminal of the first control chip and the third input terminal of the first control chip are respectively connected to the output terminals of the two touch units for communication.

5. A spinal nerve distribution point teaching model control circuit according to claim 4, characterized in that: The 11th pin, the 28th pin, the 50th pin, the 75th pin and the 100th pin of the first control chip are all connected to the 3.3V voltage terminal; The tenth pin, the twenty-seventh pin, the forty-ninth pin, the seventy-fourth pin and the ninety-ninth pin of the first control chip are all grounded; The sixty-ninth pin of the first control chip is communicatively connected to the twelfth pin of the signal conversion chip through the twelfth resistor; The sixty-eighth pin of the first control chip is communicatively connected with the eleventh pin of the signal conversion chip; The 48th and 79th pins of the first control chip are both connected to the touch unit for communication.

6. A spinal nerve distribution point teaching model control circuit according to claim 1, characterized in that: The touch unit includes a second control chip, at least one electrode sheet and at least one current limiting resistor; Each of the electrode sheets is connected to the second control chip through each of the current limiting resistors; The second control chip is communicatively connected with the control unit.

7. A spinal nerve distribution point teaching model control circuit according to claim 6, characterized in that: The touch unit specifically includes: fifteen electrode sheets and fifteen current-limiting resistors; The fifteen electrode sheets are respectively connected to the second control chip through the fifteen current-limiting resistors; The fifteenth pin and the sixteenth pin of the second control chip are both connected to the control unit for communication.

8. The spinal nerve distribution point teaching model control circuit according to claim 1, characterized in that: Also includes: The voice playing unit is used to respond to the control signal output by the control unit and play the predetermined voice data accordingly; The voice playing unit is communicatively connected with the control unit.

9. A spinal nerve distribution point teaching model control circuit according to claim 1, characterized in that: The verification unit includes a verification chip, a twenty-first resistor, a twenty-second resistor and a fourteenth capacitor, and the first pin, the second pin, the third pin and the fourth pin of the verification chip are grounded; The fifth and sixth pins of the verification chip are both connected to the first control chip U3; The seventh pin of the verification chip is grounded; The seventh pin of the verification chip is also electrically connected to the 3.3V voltage terminal through the fourteenth capacitor; the fifth pin of the verification chip is connected to the 3.3V voltage terminal through the twenty-second resistor; the sixth pin of the verification chip is connected to the 3.3V voltage terminal through the twenty-first resistor.

10. A spinal nerve distribution point teaching model device, characterized in that: It comprises a spinal nerve distribution point teaching model control circuit as claimed in any one of claims 1 to 9, and a humanoid support seat; The humanoid support seat is wrapped with a fixing layer, an FPC soft board interlayer and a simulated skin layer; The first surface of the fixing layer is fixedly connected to the humanoid support seat; The second surface of the fixed layer is fixedly connected to the first surface of the FPC soft board interlayer; The second surface of the FPC soft board interlayer is fixedly connected to the simulated skin layer; An electrode sheet is embedded inside the FPC soft board interlayer, and the electrode sheet is connected to the touch unit.

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