Spinal nerve distribution point teaching model control circuit

Abstract

The utility model 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; 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 control circuit of the utility model, 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 utility model relates to teaching aid technical field more specifically, it relates to a kind of spinal nerve distribution point teaching model control circuit. BACKGROUND

[0002] In prior art, human body model has been widely used as medical teaching aid, which is a more common technical solution. Through these models, learners can intuitively observe and understand the specific positions of acupoints, meridians, blood vessels, muscles and other tissues in human body structure, so as to more efficiently master relevant knowledge. This teaching method is not only vivid, but also facilitates learners to establish overall understanding of human body structure.

[0003] In order to further improve teaching effect, and help student to understand relevant knowledge more deeply, some human body models are improved in design. At key positions of the model, such as specific acupoints or important organ regions, button functions that can sense touch are added. When students touch these buttons, the touch control system inside the model will trigger corresponding operations, and play detailed knowledge information related to the touch position through the loudspeaker. In this way, students can obtain the required theoretical explanation in real time while operating, so as to more efficiently learn medical knowledge. This design combining interactivity and intuitiveness not only enhances the interest of learning, but also significantly improves the practicality and effect of teaching.

[0004] For example, Chinese utility model patent (application number: 201811191698.4) proposes an intelligent robot with medical and household composite functions, which includes a human body simulation model, a supporting 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. Through the control system, medical and health human-computer interaction function and household auxiliary function can be realized. The medical and health human-computer interaction function includes one or more of sign recognition, medical inquiry and health inquiry, which can specifically include voice recognition and light indication of acupoints and / or meridians, voice output, visual information output function, intelligent inquiry function and active diagnosis function. The household auxiliary function includes one or more of intelligent tutoring, interactive entertainment and household appliance intelligent control.

[0005] However, the above intelligent robot still has some obvious shortcomings. First, the robot only supports controlling the robot through voice interaction to light prompt acupoint related information, or triggering voice to play related knowledge through touching the corresponding position. This single interaction mode limits the user's operation selection and cannot control the robot through other operation devices. In addition, the robot lacks the function of recording and managing the learning information of students and cannot track and evaluate the learning progress of students. This defect makes it difficult for the robot to realize targeted and personalized teaching guidance in the teaching process, affecting the comprehensive practicality and teaching effect of the robot as a medical teaching tool. TECHNICAL PROBLEM

[0006] In view of the defects of the prior art, the present application aims to provide a spinal nerve distribution point teaching model control circuit to overcome the defect that the existing teaching equipment cannot record the learning progress.

[0007] The above technical problem of the present application is solved by the following technical solution: a spinal nerve distribution point teaching model control circuit, comprising:

[0008] At least one touch unit for sensing touch actions to generate touch signals;

[0009] A control unit for generating corresponding first signals in response to the touch signals, the first signals being used at least for recording touch position information;

[0010] A signal conversion unit for converting the first signals into second signals and sending them to external devices, or for receiving third signals sent by external devices, converting the third signals into fourth signals and then transmitting them to the control unit;

[0011] The touch unit and the signal conversion unit are both in communication connection with the control unit.

[0012] In one embodiment, the signal conversion unit specifically comprises: a signal conversion chip; a first input end of the signal conversion chip is in communication connection with a first output end of the control unit, for receiving the first signals output by the control unit; a first output end of the signal conversion chip is in communication connection with a first input end of the control unit, for sending the fourth signals to the control unit; a second input end of the signal conversion chip is in communication connection with an output end of the external device, for receiving the third signals output by the external device; and a second output end of the signal conversion chip is in communication connection with an input end of the external device, for sending the second signals to the external device.

[0013] In one embodiment, the signal conversion unit further comprises 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 with the third pin of the signal conversion chip through the third capacitor; the fourth pin of the signal conversion chip is connected with the fifth pin of the signal conversion chip through the sixth capacitor; the eleventh pin of the signal conversion chip is connected with the first output end of the control unit; the twelfth pin of the signal conversion chip is connected with the first input end of the control unit through the twelfth resistor; the thirteenth pin of the signal conversion chip is connected with the output end of the external device through the thirteenth resistor; the fourteenth pin of the signal conversion chip is connected with 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 with 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 further connected with a 3.3V voltage end; the sixteenth pin of the signal conversion chip is further grounded through the second capacitor.

[0014] In one embodiment, the control unit comprises a first control chip; the first input end of the first control chip is connected with the twelfth pin of the signal conversion chip through the twelfth resistor; the first output end of the first control chip is connected with the eleventh pin of the signal conversion chip; the second input end and the third input end of the first control chip are connected with the output ends of two touch units respectively.

[0015] In one embodiment, the eleventh pin, the twenty-eighth pin, the fiftieth pin, the seventy-fifth pin and the one-hundredth pin of the first control chip are connected with a 3.3V voltage end; 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 grounded; the sixty-ninth pin of the first control chip is connected with the twelfth pin of the signal conversion chip through the twelfth resistor; the sixty-eighth pin of the first control chip is connected with the eleventh pin of the signal conversion chip; the forty-eighth pin and the seventy-ninth pin of the first control chip are connected with the touch units.

[0016] In one embodiment, the touch unit comprises a second control chip, at least one electrode sheet and at least one current-limiting resistor; each electrode sheet is connected with the second control chip through the current-limiting resistor; the second control chip is connected with the control unit.

[0017] In one embodiment, the touch unit specifically comprises fifteen electrode pieces and fifteen current-limiting resistors, the fifteen electrode pieces are respectively connected with 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 with the control unit.

[0018] In one embodiment, the check unit comprises a check 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 check chip are grounded; the fifth pin and the sixth pin of the check chip are connected with the first control chip U3; the seventh pin of the check chip is grounded; the seventh pin of the check chip is further connected with the 3.3V voltage end through the fourteenth capacitor; the fifth pin of the check chip is connected with the 3.3V voltage end through the twenty-second resistor; the sixth pin of the check chip is connected with the 3.3V voltage end through the twenty-first resistor.

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

[0020] In one embodiment, the spinal nerve distribution point teaching model control circuit further comprises a voice playing unit for playing predetermined voice data in response to a control signal output by the control unit; the voice playing unit is connected with the control unit.

[0021] In summary, the spinal nerve distribution point teaching model control circuit has the following advantages: the spinal nerve distribution point teaching model control circuit comprises at least one touch unit for sensing a touch action to generate a touch signal; a control unit for generating a corresponding first signal in response to the touch signal, the first signal being used at least for recording touch position information; a signal conversion unit 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 the external device, 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 connected with the control unit; the spinal nerve distribution point teaching model control circuit of the utility model realizes the communication function between the control unit and the external device. Not only can the learning progress of the user be recorded, but also the related functions of the teaching model can be controlled through the external device, effectively overcoming the shortcomings of the single control means of the existing teaching model and the inability to record the learning progress. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The spinal nerve distribution point teaching model control circuit of the utility model is a structural block diagram;

[0023] Figure 2The signal conversion unit circuit principle diagram of the embodiment of the utility model;

[0024] Figure 3 The first control chip circuit principle diagram of the embodiment of the utility model;

[0025] Figure 4 The crystal oscillator, filter circuit and reset circuit principle diagram of the control unit in the embodiment of the utility model;

[0026] Figure 5 The first second control chip circuit principle diagram in the embodiment of the utility model;

[0027] Figure 6 The schematic diagram of fifteen plug-in connectors for connecting with electrode pieces in the embodiment of the utility model;

[0028] Figure 7 The second second control chip circuit principle diagram in the embodiment of the utility model;

[0029] Figure 8 The schematic diagram of another fifteen plug-in connectors for connecting with electrode pieces in the embodiment of the utility model;

[0030] Figure 9 The teaching model hierarchical structure schematic diagram of the embodiment of the utility model;

[0031] Figure 10 The schematic diagram of the electrode piece of the embodiment of the utility model;

[0032] Figure 11 The speech playing unit circuit principle diagram of the embodiment of the utility model;

[0033] Figure 12 The RTC unit circuit principle diagram of the embodiment of the utility model;

[0034] Figure 13 The LED module circuit principle diagram of the embodiment of the utility model;

[0035] Figure 14 The EEPRROM circuit principle diagram of the embodiment of the utility model;

[0036] Figure 15 The teaching model appearance front side schematic diagram of the embodiment of the utility model;

[0037] Figure 16 The teaching model appearance back side schematic diagram of the embodiment of the utility model;

[0038] Figure 17 The teaching model and computer communication connection use flow schematic diagram of the embodiment of the utility model;

[0039] In the figure: 1, touch unit; 2, control unit; 3, signal conversion unit; 4, voice playing unit; 101, artificial skin layer; 102, FPC soft board interlayer; 103, fixed layer. DETAILED DESCRIPTION

[0040] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. Several embodiments of the present application are given in the drawings. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein.

[0041] In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the cases of A alone, A and B together, and B alone. Wherein A and B can be singular or plural. The character " / " generally represents that the associated objects before and after are in an "or" relationship. "At least one of the following" and similar expressions mean any combination of these items, including any combination of single or multiple items. For example, at least one of a, b and c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c can be single or multiple.

[0042] Those of ordinary skill in the art can realize that the units and algorithm steps described in the embodiments disclosed herein can be realized by electronic hardware, computer software and a combination of electronic hardware and computer software. Whether the functions are realized in hardware or software mode depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0043] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0044] In several embodiments provided in the present application, any function, if realized in the form of a software function unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on such an understanding, the technical solutions of the present application essentially or the parts of the technical solutions that make contributions to the prior art, or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing an apparatus (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0045] The above description is merely specific embodiments of the present application, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

[0046] The utility model will be described in detail below in combination with the drawings and embodiments.

[0047] Embodiment one

[0048] In order to solve the above problems, the utility model provides a kind of spinal nerve distribution point teaching model control circuit, as shown in Figure 1 A spinal nerve distribution point teaching model control circuit, characterized by comprising:

[0049] At least one touch unit 1 is used to induct touch action to generate touch signal;

[0050] Control unit 2 is used to respond to touch signal to generate corresponding first signal, and the first signal is at least used to record touch position information;

[0051] Signal conversion unit 3 is used to convert the first signal into second signal and send to external device, or for receiving the third signal sent by external device, the fourth signal is transmitted to control unit after converting the third signal;

[0052] The touch unit 1 and the signal conversion unit 3 are both connected with the control unit 2.

[0053] In summary, the present application sets a touch unit on the control circuit of the spine nerve distribution point teaching model, which can generate a touch signal when the user touches the corresponding position. The control unit is used to execute a predetermined program; for example, when the user touches the neck nerve, the control unit can control the voice playing unit to play the content associated with the neck nerve when receiving the touch signal; when the user touches the waist nerve, the control unit can control the voice playing unit to play the content associated with the waist nerve when receiving the touch signal.

[0054] In order to record the learning progress of the user, the control unit needs to interact with the external device to make the voice information played by the teaching model each time it is touched can be recorded by the external device. At the same time, the control unit can also receive a control signal through the external device to complete the corresponding action in response to the external control signal. In order to ensure the stable communication between the control unit and the external device, the present application sets a signal conversion unit on the control circuit of the teaching model. 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 learning progress of the user. In addition, the signal conversion unit also receives the third signal sent by the external device, converts it into a fourth signal and transmits it to the control unit, so that the control unit executes the corresponding control instruction.

[0055] The external device can be a computer, a mobile phone, a tablet or other mobile communication devices. Through the action of the signal conversion unit, stable communication is realized between the control unit and the external device, thereby ensuring the effectiveness of the learning progress record and the external control function.

[0056] The control unit generates a first signal in response to the touch signal, and the first signal contains the current touch position information, which is used for the external device to record the learning progress of the user. 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), which is converted into a fourth signal that can be recognized by the control unit through the communication protocol by the signal conversion unit, so as to ensure that the control unit can execute the instruction. The whole process realizes the bidirectional conversion of the signal through the signal conversion unit, guarantees the stability and compatibility of the communication, and completes the functions of learning progress record and instruction execution.

[0057] In summary, the present application sets a signal conversion unit in the teaching model to realize the communication function between the control unit and the external device. Not only can the learning progress of the user be recorded, but also the related functions of the teaching model can be controlled through the external device, effectively overcoming the shortcomings of the single control means and the inability to record the learning progress of the existing teaching model.

[0058] In one embodiment, the signal conversion unit specifically comprises: a signal conversion chip U4; a first input end of the signal conversion chip U4 is in communication connection with a 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 U4 is in communication connection with a 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 U4 is in communication connection with an output end of the external device, for receiving a third signal output by the external device; and a second output end of the signal conversion chip U4 is in communication connection with an input end of the external device, for sending a second signal to the external device.

[0059] In actual use, the signal conversion chip U4 is specifically an SP2323 chip, which can realize mutual conversion between TTL signals and RS-232 signals; wherein the TTL signals are used for mutual communication with the communication interface of the control unit; and the RS-232 signals are used for mutual communication with the interface of the host computer. The control unit, such as a single-chip microcomputer, usually transmits and receives data through a UART interface, and outputs TTL signals. The TTL signal level range is small, and is suitable for internal communication of microcontrollers and other digital logic devices. In the case of needing to communicate with external devices at a long distance, the TTL signal cannot meet such a demand, and it is necessary to convert the TTL signal into a signal with stronger anti-interference capability. In the present application, the RS-232 signal is adopted. The high-voltage design of RS-232 increases the anti-interference capability of the signal, but is incompatible with the TTL signal.

[0060] In the present embodiment, the first signal is a TTL signal output by the control unit and containing the current user learning progress; after the first signal passes through the signal conversion chip U4, an RS-232 signal containing the current user learning progress, that is, the second signal, is generated and transmitted 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, the fourth signal is generated, which is a TTL signal recognizable by the single-chip microcomputer.

[0061] The standard transmission rate specified by RS-232 is 50 b / s, 75 b / s, 110 b / s, 150 b / s, 300 b / s, 600 b / s, 1200 b / s, 2400 b / s, 4800 b / s, 9600 b / s, 19200 b / s, which can be flexibly adapted to devices of different rates. For slow peripherals, a lower transmission rate can be selected; otherwise, a higher transmission rate can be selected. Secondly, the RS-232 signal specifies that the logic "1" level is -5 V~ -15 V, and the logic "0" level is +5 V~ +15 V. 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 2 V, and the receiver can identify a signal as high as +3 V as logic "0" and a signal as low as -3 V as logic "1". Since RS-232 adopts a serial transmission mode, and converts the TTL level of the microcomputer into the RS-232C level, the transmission distance can generally reach 30 m. If a 20 mA current loop is used for transmission, the transmission distance can reach 1000 m. In addition, if a Modem is added to the RS-232 bus interface, transmission can be carried out through wired, wireless or optical fiber, and the transmission distance can be even longer, which is more suitable for enabling the teaching model control circuit to realize long-distance communication with the outside.

[0062] 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 terminal of the control unit; the twelfth pin of the signal conversion chip U4 is communicatively connected to the first input terminal of the control unit through the twelfth resistor R12; the third pin of the signal conversion chip U4 is communicatively connected to the first input terminal of the control unit through the twelfth resistor R12; the fourth pin of the signal conversion chip U4 is communicatively connected to the first output terminal of the control unit through the twelfth resistor R12; the eleventh ... Pin 13 is connected to the output terminal of the external device via the thirteenth resistor R13; pin 14 of the signal conversion chip U4 is connected to the input terminal of the external device via the eleventh resistor R11; pin 15 of the signal conversion chip U4 is grounded; pin 6 of the signal conversion chip U4 is grounded via the fifth capacitor C5; pin 2 of the signal conversion chip U4 is grounded via the fourth capacitor C4 and the ninth resistor R9; pin 2 of the signal conversion chip U4 is connected to pin 16 of the signal conversion chip U4 via the fourth capacitor C4 and the tenth resistor R10; pin 16 of the signal conversion chip U4 is also electrically connected to the 3.3V voltage terminal; pin 16 of the signal conversion chip U4 is also grounded via the second capacitor C2.

[0063] Specifically, such as Figure 2 As shown, pin 11 of signal conversion chip U4 is T1IN, used to connect to the control unit to receive the TTL signal output by the control unit. Pin 12 of signal conversion chip U4 is R1OUT, used to output the converted TTL signal to the control unit. Pin 13 of signal conversion chip U4 is R1IN, used to receive the RS-232 signal input from the external device. Pin 14 of signal conversion chip U4 is T1OUT, used to output the converted RS-232 signal to the external device. Signal conversion chip U4 is connected to the external device via connector J2 to facilitate connection or disconnection of communication with the external device.

[0064] In one embodiment, the control unit includes: a first control chip U3; a first input terminal of the first control chip U3 is communicatively connected to the twelfth pin of the signal conversion chip U4 via the twelfth resistor; a first output terminal of the first control chip U3 is communicatively connected to the eleventh pin of the signal conversion chip U4; and a second input terminal and a third input terminal of the first control chip U3 are communicatively connected to the output terminals of the two touch units, respectively.

[0065] In the 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 a received trigger signal, that is, after the single-chip microcomputer receives a touch signal output by the touch unit, it can determine which part is triggered to send the touch signal based on the touch signal, then play the corresponding 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 upper computer for recording and statistics to determine the learning progress of the user.

[0066] In one embodiment, the eleventh pin, the twenty-eighth pin, the fiftieth pin, the seventy-fifth pin, and the one hundredth pin of the first control chip U3 are connected with 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 U3 are grounded; the sixty-ninth pin of the first control chip U3 is connected with the twelfth pin of the signal conversion chip U4 through the twelfth resistor; the sixty-eighth pin of the first control chip U3 is connected with the eleventh pin of the signal conversion chip U4; the forty-eighth pin and the seventy-ninth pin of the first control chip U3 are connected with the touch unit.

[0067] Specifically, the second input end and the third input end of the single-chip microcomputer are connected with two touch units respectively, supporting multi-point touch control, and being able to accurately determine the specific touch position, meeting the needs of complex touch control scenarios. The eleventh pin, the twenty-eighth pin, and other pins are connected to the 3.3V voltage terminal, and the tenth pin, the twenty-seventh pin, and other pins are grounded, providing good power distribution and grounding loop, reducing signal interference caused by power supply noise or inconsistent ground potential; through program control, when the touch signal is detected, the single-chip microcomputer can automatically trigger the voice broadcast related to the touch position, improving the interactivity and intelligent degree of teaching.

[0068] In one embodiment, the control unit further comprises: a first crystal oscillator J6 and a second crystal oscillator Y1; two ends of the first crystal oscillator J6 are connected with the eighth pin and the ninth pin of the single-chip microcomputer respectively, the first crystal oscillator J6 is a system clock, and an optional internal clock of the single-chip microcomputer or an external 32.768K clock; two ends of the second crystal oscillator Y1 are connected with the twelfth pin and the thirteenth pin of the single-chip microcomputer respectively, the second crystal oscillator Y1 is a high-speed clock, and an optional internal high-speed crystal oscillator or an external high-speed crystal oscillator with a speed of 8MHz; the double crystal oscillator design provides flexible selection of a clock source, and can adapt to various application scenarios. The control unit further comprises a filter circuit, and filtering of a 3.3V voltage end is realized by using parallel capacitors; C7-C11 are filter capacitors of a minimum system of a power supply of the single-chip microcomputer, and are used to ensure the power supply stability when the system power supply enters the single-chip microcomputer. SW1 is a reset button, and when it is necessary to re-run a program, the button is pressed to short-circuit GND. The system is reset to re-read the single-chip microcomputer; the reset circuit provides a stable recovery mechanism for the system, and prevents the system from stalling due to running errors or program crashes. FB1 and FB2 are used to distinguish an analog power supply and a digital power supply, the analog power supply and the digital power supply are distinguished, interference between the two is reduced, and the accuracy of analog signal processing and the integrity of digital signals are ensured.

[0069] In one embodiment, the touch unit comprises a second control chip, at least one electrode sheet and at least one current-limiting resistor; each electrode sheet is connected with the second control chip in communication through each current-limiting resistor; and the second control chip is connected with the control unit in communication.

[0070] In the embodiment, the touch unit comprises a plurality of electrode sheets, a plurality of current-limiting resistors and a second control chip, wherein the second control chip is a micro-control chip with a model of CA51M151P6A; the electrode sheets are arranged at positions of the teaching model and are electrically connected with corresponding ports of the second control chip through wires and resistors; when a user touches the positions where the electrode sheets are arranged, a capacitance is formed between the user and the electrode sheets, so that the level of the corresponding port of the second control chip is changed, and the second control chip can receive the touch sensing signal. Each electrode sheet corresponds to one port, and the second control chip can generate serial port coding based on the port receiving the control signal and input the serial port coding 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.

[0071] In one embodiment, the touch unit specifically comprises: fifteen electrode sheets and fifteen current-limiting resistors; the fifteen electrode sheets are connected with the second control chip in communication through the fifteen current-limiting resistors respectively; and the fifteenth pin and the sixteenth pin of the second control chip are connected with the control unit in communication.

[0072] In the present application, the number of touch units is two, both of which include a second control chip and fifteen electrode pieces, so the teaching model has a total of 30 touch areas for the user to touch. As shown in Figure 3 The two second control chips are respectively connected with the forty-seventh pin, the forty-eighth pin, the seventy-eighth pin and the seventy-ninth pin of the first control chip U3, which can transmit touch signals to the first control chip U3 and receive control signals transmitted by the first control chip U3 to perform corresponding actions, for example, LED lamp beads can be connected to the interfaces of the second control chip, and when the spinal nerves of a specific position need to be displayed, the control signals 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 to make a prompt according to the control signals.

[0073] In one embodiment, it further comprises a voice playing unit 4 for playing predetermined voice data in response to the control signal output by the control unit; the voice playing unit is connected with the control unit.

[0074] In actual application, as shown in Figure 11 The control circuit further comprises a voice playing unit for playing voice information, which includes a music master control chip U23, which is specifically a control chip with a model of BY9001-24QS, and can play predetermined music files based on the playing instruction issued by the first control chip U3. The music files are stored in the SD card in a predetermined format and a predetermined naming for the music master control chip U23 to read. The voice playing unit further includes a power amplifier chip U24 for amplifying the music signal to drive the loudspeaker to play corresponding sound, specifically, the power amplifier chip U24 is a power amplifier chip with a model of MIX2002 to drive the loudspeaker to work.

[0075] In one embodiment, as shown in Figure 14As shown, the control circuit further comprises a verification unit; the verification unit comprises a verification chip, a twenty-first resistor, a twenty-second resistor and a fourteenth capacitor, a first pin, a second pin, a third pin and a fourth pin of the verification chip are grounded; a fifth pin and a sixth pin of the verification chip are connected with the first control chip U3; a seventh pin of the verification chip is grounded; the seventh pin of the verification chip is further connected with a 3.3V voltage end through the fourteenth capacitor; the fifth pin of the verification chip is connected with the 3.3V voltage end through the twenty-second resistor; and the sixth pin of the verification chip is connected with the 3.3V voltage end through the twenty-first resistor, for system verification. When the system starts, information in the EEPROM is read. When the read information is consistent with the pre-stored information, the system performs subsequent actions. In the embodiment, the EEPROM chip specifically adopts a chip of model AT24C02M / TR to realize system verification. The system verification of the EEPROM is mainly based on the cyclic redundancy check (CRC) technology, for ensuring the integrity of the stored data. First, a 16-bit CRC check code (hash value generated by polynomial division) is calculated for the original data, the check code is attached at the end of the data, and the data and the check code are stored in the EEPROM together; the data and the stored CRC check code are read from the EEPROM; the CRC value of the read data is recalculated; and the newly calculated CRC is compared with the stored check code, if they are inconsistent, it is determined that the data is abnormal.

[0076] In one embodiment, as shown in FIG. 6, the teaching model further comprises an LED indicator light, which is used to indicate the current system state and the corresponding key state; the signal indication can be customized according to the actual use. Figure 13

[0077] In one embodiment, as shown in FIG. 6, the teaching model further comprises an LED indicator light, which is used to indicate the current system state and the corresponding key state; the signal indication can be customized according to the actual use. Figure 12 Embodiment Two

[0078]

[0079] ​​In one embodiment, the present application also provides a method of running on a computer system, interacting with the above-mentioned model, as shown in Figure 17 The method includes, as shown, first logging in using an account password when the student uses it, after logging in, the software can automatically load the current learning progress of the student, and give relevant exercises, when the student touches the relevant area on the model, the content displayed on the computer display can be enlarged according to the part touched by the student, and it is judged whether the position touched by the student is correct, if correct, switch to the next area, if not correct, the relevant tutorial will be played on the computer interface, and the problem setting is re-audited. 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 to learn later.

[0080] Embodiment three

[0081] As shown in Figure 15 , Figure 16 The present embodiment provides a spinal nerve distribution point teaching model device, which comprises the spinal nerve distribution point teaching model control circuit according to any one of the embodiments and a humanoid support seat; a fixed layer, an FPC soft board interlayer and a simulated skin layer are wrapped on the humanoid support seat; the first surface of the fixed layer is fixedly connected with the humanoid support seat; the second surface of the fixed layer is fixedly connected with the first surface of the FPC soft board interlayer; the second surface of the FPC soft board interlayer is fixedly connected with the simulated skin layer; and the electrode sheet is embedded in the inside of the FPC soft board interlayer.

[0082] In one embodiment, the electrode sheet is circular in design, and the diameter of the electrode sheet is 20 mm.

[0083] As shown in Figure 9 The teaching model device is composed of three layers, the innermost layer is the fixed layer 103, which provides support for the overall model and ensures that the model maintains a stable human form; the middle layer is the FPC soft board interlayer 102, which is closely attached to the fixed layer, so that the circuit board is consistent with the shape of the fixed layer 103, 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 to improve the realism of the model, but also can print spinal nerve information on the surface according to actual needs, so that the user can observe the information of the relevant position while touching. The overall design enhances the functionality and appearance of the teaching model, significantly improving the user's learning experience and interactive effect.

[0084] Specifically, as shown in Figure 10As shown; the electrode sheet is used for mutual induction with the human finger to change the capacitance value, and then generate a touch signal, so it is necessary to design the touch electrode sheet with the contact area of the human finger as the reference, in the embodiment, the shape of the electrode sheet is circular, and the diameter is 20mm, avoiding that the contact area is too small to trigger, and the dark gray bar area on the right side of the electrode sheet is a metal copper leakage area, which is used for connection with the wire to realize electrical connection with the second control chip.

[0085] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, and the computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of the methods can be included. Wherein, any reference to memory, storage, database or other medium used in each embodiment provided by the present application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), 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) and the like.

[0086] The technical features of the above embodiments can be combined in any way, and in order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0087] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solution under the idea of the present application belongs to the protection scope of the present application. It should be pointed out that for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A spinal nerve distribution point teaching model control circuit, characterized in that, The application relates to a touch signal conversion device, which comprises the following parts: at least one touch unit for sensing a touch action to generate a touch signal; a control unit for generating a corresponding first signal in response to the touch signal, wherein the first signal is used for recording touch position information at least; a signal conversion unit 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 the external device, converting the third signal into a fourth signal and then transmitting the fourth signal to the control unit; the signal conversion unit specifically comprises a signal conversion chip; a first input end of the signal conversion chip is in communication connection with a first output end of the control unit, and is used for receiving the first signal output by the control unit; a first output end of the signal conversion chip is in communication connection with a first input end of the control unit, and is used for sending the fourth signal to the control unit; a second input end of the signal conversion chip is in communication connection with an output end of the external device, and is used for receiving the third signal output by the external device; and a second output end of the signal conversion chip is in communication connection with an input end of the external device, and is used for sending the second signal to the external device; the touch unit and the signal conversion unit are both in communication connection with the control unit.

2. The control circuit of a spinal nerve distribution point teaching model according to claim 1, wherein, The signal conversion unit further comprises 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; a first pin of the signal conversion chip is connected with a third pin of the signal conversion chip through the third capacitor; a fourth pin of the signal conversion chip is connected with a fifth pin of the signal conversion chip through the sixth capacitor; an eleventh pin of the signal conversion chip is in communication connection with the first output end of the control unit; a twelfth pin of the signal conversion chip is in communication connection with the first input end of the control unit through the twelfth resistor; a thirteenth pin of the signal conversion chip is in communication connection with the output end of the external device through the thirteenth resistor; a fourteenth pin of the signal conversion chip is in communication connection with the input end of the external device through the eleventh resistor; a fifteenth pin of the signal conversion chip is grounded; a sixth pin of the signal conversion chip is grounded through the fifth capacitor; a second pin of the signal conversion chip is grounded through the fourth capacitor and the ninth resistor in sequence; and the second pin of the signal conversion chip is connected with a 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 further electrically connected with a 3.3V voltage end; and the sixteenth pin of the signal conversion chip is further grounded through the second capacitor.

3. The control circuit of a spinal nerve distribution point teaching model according to claim 2, wherein, The control unit comprises a first control chip; a first input end of the first control chip is in communication connection with the twelfth pin of the signal conversion chip through the twelfth resistor; a first output end of the first control chip is in communication connection with the eleventh pin of the signal conversion chip; a second input end and a third input end of the first control chip are respectively in communication connection with output ends of two touch units.

4. The control circuit of claim 3, wherein, The eleventh pin, the twenty-eighth pin, the fiftieth pin, the seventy-fifth pin and the one hundredth pin of the first control chip are connected with a 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 grounded; The sixty-ninth pin of the first control chip is in communication connection with the twelfth pin of the signal conversion chip through the twelfth resistor; The sixty-eighth pin of the first control chip is in communication connection with the eleventh pin of the signal conversion chip; The forty-eighth pin and the seventy-ninth pin of the first control chip are in communication connection with the touch unit.

5. The control circuit of a spinal nerve distribution point teaching model according to claim 1, wherein, The touch unit comprises a second control chip, at least one electrode sheet and at least one current-limiting resistor; Each of the electrode sheets is in communication connection with the second control chip through each of the current-limiting resistors; The second control chip is in communication connection with the control unit.

6. The control circuit of a spinal nerve distribution point teaching model according to claim 5, wherein, The touch unit specifically comprises fifteen electrode sheets and fifteen current-limiting resistors; The fifteen electrode sheets are in communication connection with the second control chip through the fifteen current-limiting resistors; The fifteenth pin and the sixteenth pin of the second control chip are in communication connection with the control unit.

7. The control circuit of a spinal nerve distribution point teaching model according to claim 6, wherein, Further comprising: a check unit; The check unit comprises a check 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 check chip are grounded; The fifth pin and the sixth pin of the check chip are connected with the first control chip U3; The seventh pin of the check chip is grounded; The seventh pin of the check chip is further in electrical connection with a 3.3V voltage terminal through the fourteenth capacitor; the fifth pin of the check chip is connected with a 3.3V voltage terminal through the twenty-second resistor; the sixth pin of the check chip is connected with a 3.3V voltage terminal through the twenty-first resistor.

8. The control circuit of a spinal nerve distribution point teaching model according to claim 7, wherein, The electrode sheet is circular in design, and the diameter of the electrode sheet is 20mm.

9. The control circuit of a spinal nerve distribution point teaching model according to claim 1, wherein, Further comprising: a voice playing unit for playing predetermined voice data in response to a control signal output by the control unit; The voice playing unit is in communication connection with the control unit.

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