Control circuit of operation teaching recorder

Abstract

The utility model provides a control circuit of an operation teaching recorder, which comprises a power supply in power supply connection with a power supply voltage regulating circuit, the power supply voltage regulating circuit in power supply connection with a main control circuit of the operation teaching recorder, and an output end of the main control circuit of the operation teaching recorder in control connection with a storage circuit and a wireless communication circuit. The input end of the operation teaching recorder main control circuit is connected with the output end of the audio signal input circuit and the output end of the video signal input circuit, the audio signal input circuit can receive multiple channels of audio signals, and the video signal input circuit can receive multiple channels of video signals; the output end of the operation teaching recorder main control circuit can directly output video signals and audio signals. The beneficial effects of the utility model are that a plurality of video signal sources and audio signal sources can be recorded at the same time, noise and interference can be filtered, and the quality of teaching videos can be improved.

Description

Technical Field

[0001] This utility model relates to the field of control circuit technology, specifically to a control circuit for a surgical teaching recorder. Background Technology

[0002] The surgical teaching recorder is a key component of a surgical teaching system, used to record video and audio during the surgical process. It comprehensively records surgical details, providing clear and precise documentation of the entire procedure, including the start time, anesthesia induction and maintenance phases, incision location and size, tissue separation and exposure, removal or repair of diseased tissue, application of hemostasis measures, instrument usage, and suturing to close the incision. Doctors and medical students can review the surgical records to analyze the strengths and weaknesses of the surgical procedure. For complex surgeries, postoperative review helps team members better understand the difficulties and key decision points during the procedure, summarize lessons learned, and improve surgical techniques. Simultaneously, it provides valuable primary data for medical research; researchers can analyze large amounts of surgical records to explore new surgical methods or optimize existing surgical procedures. In telemedicine consultations, the content of the surgical teaching recorder can be transmitted in real time to experts in other medical institutions, allowing them to observe the surgical progress synchronously and provide real-time opinions and suggestions. For example, when performing complex surgeries, primary hospitals can use the surgical teaching recorder to allow experts from higher-level hospitals to remotely guide the surgical procedure, improving the success rate.

[0003] Surgical teaching recorders provide the most authentic teaching materials for medical education. Medical students can visually learn surgical procedures, anatomical structure identification, correct use of surgical instruments, and collaborative models among surgical team members by watching various surgical recordings. Compared to traditional textbooks and theoretical explanations, surgical recordings are more visually impactful, enabling students to better understand the actual surgical situation. For example, in surgical teaching, instructors can use video recordings of joint replacement surgeries to explain in detail key steps such as surgical approach and prosthesis placement, helping students build intuitive surgical knowledge. For skills training of interns and residents, surgical teaching recorders can be used to assess whether their operational skills meet standards. Training instructors can observe trainees' adherence to procedures, proficiency, and adaptability during surgical operations based on the recordings, and provide targeted feedback and guidance. Simultaneously, these records can also serve as an important basis for skills assessment, ensuring the quality of medical training and the professional level of physicians.

[0004] Therefore, surgical teaching recorders play a vital role in medical education and training, helping doctors and students better understand and master surgical techniques. However, current surgical teaching recorders generally only support single audio and single video signal inputs, and interference exists between the audio and video signal sources, resulting in noise and interference in the recorded teaching videos. Furthermore, most existing surgical teaching recorders lack real-time data transmission and interaction capabilities; they only record on-site, and playback is only possible after recording is complete. This results in a less than ideal user experience for doctors and students. Utility Model Content

[0005] To address the problems in existing technologies, this utility model provides a control circuit for a surgical teaching recorder. By incorporating a power supply, a power voltage adjustment circuit, a main control circuit, an audio signal input circuit, a video signal input circuit, a wireless communication circuit, and a storage circuit within the control circuit, it enables simultaneous recording from multiple video and audio signal sources, filters out noise and interference, improves the quality of teaching videos, and significantly enhances the user experience for doctors and students. This solves the problem that existing surgical teaching recorders generally only support single audio and single video signal input and lack real-time data transmission and interaction capabilities.

[0006] This utility model provides a control circuit for a surgical teaching recorder, including a power supply, a power voltage adjustment circuit, a main control circuit for the surgical teaching recorder, an audio signal input circuit, a video signal input circuit, a wireless communication circuit, and a storage circuit. The output terminal of the power supply is connected to the input terminal of the power voltage adjustment circuit, and the output terminal of the power voltage adjustment circuit is connected to the main control circuit for the surgical teaching recorder. The output terminal of the main control circuit is connected to the storage circuit and the wireless communication circuit. The main control circuit can wirelessly connect with other electronic devices through the wireless communication circuit. The input terminal of the main control circuit is connected to the output terminals of the audio signal input circuit and the video signal input circuit. The audio signal input circuit can receive multiple audio signals, and the video signal input circuit can receive multiple video signals. The output terminal of the main control circuit can directly output video and audio signals. The main control circuit can filter the audio and video signals input by the audio and video signal input circuits before outputting them.

[0007] This utility model is further improved in that the main control circuit of the surgical teaching recorder is provided with a main control chip U1. The main control chip U1 has 100 pins. Pins U28 and N24 of the main control chip U1 are connected to the output terminal of the power supply voltage adjustment circuit. Pins AE38, AC35, AB33, AB36, AC34, AA35, and AC33 of the main control chip U1 are connected to the storage circuit. Pins AB24 and AE25 of the main control chip U1 are connected to the wireless communication circuit. Pins AD37 and AE37 of the main control chip U1 are connected to the output terminal of the audio signal input circuit. Pins AC36 and AB38 of the main control chip U1 are connected to the output terminal of the video signal input circuit.

[0008] This utility model is further improved by including a voltage regulator chip U29, an inductor L5, and capacitors C193, C186, C195, C248, C249, and C246 in the power supply voltage adjustment circuit. The voltage regulator chip U29 has eight pins. The second pin of the voltage regulator chip U29 is connected to the output terminal of the power supply, one end of capacitor C193, and one end of capacitor C186. The third pin of the voltage regulator chip U29 is connected to one end of inductor L5. The other end of the inductor L5 is connected to one end of the capacitor C195, one end of the capacitor C248, one end of the capacitor C249, one end of the capacitor C246, and pins U28 and N24 of the main control chip U1. Pin 4 of the voltage regulator chip U29, the other end of the capacitor C193, the other end of the capacitor C186, the other end of the capacitor C195, the other end of the capacitor C248, the other end of the capacitor C249, and the other end of the capacitor C246 are grounded.

[0009] This utility model is further improved by including an audio signal receiving chip U20, capacitors C132, C133, C121, and C126 in the audio signal input circuit. The audio signal receiving chip U20 has 33 pins. Pin 10 of the audio signal receiving chip U20 is connected to one end of capacitor C121, and pin 12 of the audio signal receiving chip U20 is connected to one end of capacitor C126. The other ends of capacitors C121 and C126 can be connected to an audio signal input device. Pin 14 of the audio signal receiving chip U20 is connected to one end of capacitor C132, and pin 16 of the audio signal receiving chip U20 is connected to one end of capacitor C133. The other ends of capacitors C132 and C133 can be connected to an audio signal input device. Pins 20 and 22 of the audio signal receiving chip U20 are connected to pins AD37 and AE37 of the main control chip U1, respectively.

[0010] This utility model is further improved by including a video signal receiving chip U40, a resistor R234, and a resistor R235 in the video signal input circuit. The video signal receiving chip U40 has 77 pins. Pins 26, 27, 28, 29, 31, 32, 33, and 34 of the video signal receiving chip U40 can be connected to multiple HDMI interfaces. Pin 14 of the video signal receiving chip U40 is connected to one end of the resistor R234, and the other end of the resistor R234 is connected to pin AC36 of the main control chip U1. Pin 13 of the video signal receiving chip U40 is connected to one end of the resistor R235, and the other end of the resistor R235 is connected to pin AB38 of the main control chip U1.

[0011] This utility model is further improved by providing a storage chip U13 in the storage circuit. The storage chip U13 has 16 pins. The second pin Y of the storage chip U13 is connected to the other end of the inductor L5. The first, third, seventh, eighth, ninth, 15th, and 16th pins of the storage chip U13 are respectively connected to the AA35, AC33, AC35, AB36, AC34, AB33, and AE38 pins of the main control chip U1.

[0012] This utility model is further improved by including a wireless communication chip U11 and a resistor R203 in the wireless communication circuit. The wireless communication chip U11 has 41 pins. The 14th pin of the wireless communication chip U11 is connected to one end of the resistor R203, and the other end of the resistor R203 is connected to the other end of the inductor L5. The 12th and 13th pins of the wireless communication chip U11 are connected to the AB24th and AE25th pins of the main control chip U1, respectively. The 19th and 20th pins of the wireless communication chip U11 are also connected to a wireless communication antenna.

[0013] This utility model is further improved in that the main control chip U1 is model GK7628V100, the voltage regulator chip U29 is model MP1495, the wireless communication chip U11 is model RTL8211F, the audio signal receiving chip U20 is model TLV320AIC31, the video signal receiving chip U40 is model IT6801FN, the storage chip U13 is model SPI-NOR-256Mb, and the power supply is a 12V DC constant voltage source.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: It provides a control circuit for a surgical teaching recorder. By setting up a power supply, a power voltage adjustment circuit, a main control circuit, an audio signal input circuit, a video signal input circuit, a wireless communication circuit, and a storage circuit within the control circuit of the surgical teaching recorder, the main control circuit can filter the audio and video signals input from the audio and video signal input circuits before outputting them. The audio signal input circuit can receive multiple audio signals, and the video signal input circuit can receive multiple video signals. It can simultaneously record multiple video and audio signal sources, filter out noise and interference, improve the quality of teaching videos, and also transmit and share teaching videos in real time. It can also conduct intraoperative conferences via wireless communication and perform 4K projection demonstration teaching, greatly improving the user experience for doctors and students. It solves the problem that existing surgical teaching recorders generally only support single audio and single video signal input and do not have real-time data transmission and interaction functions. Attached Figure Description

[0015] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the control circuit of a surgical teaching recorder according to the present invention;

[0017] Figure 2 This is a circuit diagram of the main control circuit of the surgical teaching recorder of this utility model;

[0018] Figure 3 This is a circuit diagram of the power supply voltage adjustment circuit of this utility model;

[0019] Figure 4 This is a circuit diagram of the audio signal input circuit of this utility model;

[0020] Figure 5 This is a circuit diagram of the video signal input circuit of this utility model;

[0021] Figure 6 This is a circuit diagram of the storage circuit of this utility model;

[0022] Figure 7 This is a circuit diagram of the wireless communication circuit of this utility model. Detailed Implementation

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figures 1-7As shown, the control circuit of a surgical teaching recorder provided by this utility model includes a power supply, a power supply voltage adjustment circuit, a main control circuit of the surgical teaching recorder, an audio signal input circuit, a video signal input circuit, a wireless communication circuit, and a storage circuit. The output terminal of the power supply is connected to the input terminal of the power supply voltage adjustment circuit, and the output terminal of the power supply voltage adjustment circuit is connected to the main control circuit of the surgical teaching recorder. The output terminal of the main control circuit of the surgical teaching recorder is connected to the storage circuit and the wireless communication circuit. The main control circuit of the surgical teaching recorder can wirelessly connect with other electronic devices through the wireless communication circuit. The input terminal of the main control circuit of the surgical teaching recorder is connected to the output terminal of the audio signal input circuit and the output terminal of the video signal input circuit. The audio signal input circuit can receive multiple audio signals, and the video signal input circuit can receive multiple video signals. The output terminal of the main control circuit of the surgical teaching recorder can directly output video and audio signals. In this embodiment, the main control circuit of the surgical teaching recorder can filter the audio and video signals input from the audio signal input circuit and the video signal input circuit before outputting them. The audio signal input circuit can receive multiple audio signals, and the video signal input circuit can receive multiple video signals. It can record multiple video and audio signal sources simultaneously, filter out noise and interference, improve the quality of teaching videos, and can also transmit and share teaching videos in real time. It can also conduct intraoperative conferences via wireless communication and perform 4K projection demonstration teaching, which greatly improves the user experience for doctors and students.

[0027] like Figure 2 As shown, the main control circuit of the surgical teaching recorder includes a main control chip U1, model GK7628V100, with 100 pins. Pins U28 and N24 of the main control chip U1 are connected to the output of the power supply voltage adjustment circuit. Pins AE38, AC35, AB33, AB36, AC34, AA35, and AC33 of the main control chip U1 are connected to the storage circuit. Pins AB24 and AE25 of the main control chip U1 are connected to the wireless communication circuit. Pins AD37 and AE37 of the main control chip U1 are connected to the output of the audio signal input circuit. Pins AC36 and AB38 of the main control chip U1 are connected to the output of the video signal input circuit. The power supply is a 12V DC constant voltage source. In this embodiment, the main control circuit of the surgical teaching recorder is used to filter the audio and video signals input from the audio and video signal input circuits before outputting them.

[0028] like Figure 3As shown, the power supply voltage adjustment circuit includes a voltage regulator chip U29, inductor L5, capacitors C193, C186, C195, C248, C249, and C246. The voltage regulator chip U29 is an MP1495 model and has eight pins. Pin 2 of the voltage regulator chip U29 is connected to the output terminal of the power supply, one end of capacitor C193, and one end of capacitor C186. Pin 3 of the voltage regulator chip U29 is connected to... One end of inductor L5 is connected to the ground, and the other end of inductor L5 is connected to one end of capacitor C195, one end of capacitor C248, one end of capacitor C249, one end of capacitor C246, and pins U28 and N24 of the main control chip U1. Pin 4 of voltage regulator chip U29, the other end of capacitor C193, the other end of capacitor C186, the other end of capacitor C195, the other end of capacitor C248, the other end of capacitor C249, and the other end of capacitor C246 are grounded. In this embodiment, the power supply voltage adjustment circuit is used to supply power to the main control circuit, storage circuit, and wireless communication circuit of the surgical teaching recorder.

[0029] like Figure 4 As shown, the audio signal input circuit includes an audio signal receiving chip U20, capacitors C132, C133, C121, and C126. The audio signal receiving chip U20 is a TLV320AIC31 with 33 pins. Pin 10 of U20 is connected to one end of capacitor C121, and pin 12 is connected to one end of capacitor C126. The other ends of capacitors C121 and C126 can be connected to an audio signal input device. Pin 14 of U20 is connected to one end of capacitor C132, and pin 16 is connected to one end of capacitor C133. The other ends of capacitors C132 and C133 can be connected to an audio signal input device. Pins 20 and 22 of U20 are connected to pins AD37 and AE37 of the main control chip U1, respectively. In this embodiment, the audio signal input circuit is used to receive multiple audio signals and perform preliminary filtering and noise reduction before outputting them to the main control circuit of the surgical teaching recorder. The main control circuit of the surgical teaching recorder then processes the signals again before outputting them.

[0030] like Figure 5As shown, the video signal input circuit includes a video signal receiving chip U40, resistors R234 and R235. The video signal receiving chip U40 is model IT6801FN and has 77 pins. Pins 26, 27, 28, 29, 31, 32, 33, and 34 of the video signal receiving chip U40 can connect to multiple HDMI interfaces. Pin 14 of the video signal receiving chip U40 is connected to one end of resistor R234, and the other end of resistor R234 is connected to pin AC36 of the main control chip U1. Pin 13 of the video signal receiving chip U40 is connected to one end of resistor R235, and the other end of resistor R235 is connected to pin AB38 of the main control chip U1. In this embodiment, the video signal input circuit receives multiple video signals, performs preliminary filtering and noise reduction, and outputs them to the main control circuit of the surgical teaching recorder. The main control circuit then processes the signals again before outputting them.

[0031] like Figure 6 As shown, the storage circuit includes a storage chip U13, model SPI-NOR-256Mb, with 16 pins. Pin Y of storage chip U13 is connected to the other end of inductor L5. Pins 1, 3, 7, 8, 9, 15, and 16 of storage chip U13 are connected to pins AA35, AC33, AC35, AB36, AC34, AB33, and AE38 of the main control chip U1, respectively. In this embodiment, the storage circuit is used to store audio and video data according to the control commands from the main control circuit of the surgical teaching recorder.

[0032] like Figure 7 As shown, the wireless communication circuit includes a wireless communication chip U11 and a resistor R203. The wireless communication chip U11 is an RTL8211F and has 41 pins. Pin 14 of the wireless communication chip U11 is connected to one end of resistor R203, and the other end of resistor R203 is connected to the other end of inductor L5. Pins 12 and 13 of the wireless communication chip U11 are connected to pins AB24 and AE25 of the main control chip U1, respectively. Pins 19 and 20 of the wireless communication chip U11 are also connected to a wireless communication antenna. In this embodiment, the wireless communication circuit is used to send and receive wireless audio and video data according to the control commands of the main control circuit of the surgical teaching recorder.

[0033] As can be seen from the above, this utility model provides a control circuit for a surgical teaching recorder. By setting up a power supply, a power voltage adjustment circuit, a main control circuit, an audio signal input circuit, a video signal input circuit, a wireless communication circuit, and a storage circuit within the control circuit of the surgical teaching recorder, the main control circuit can filter the audio and video signals input from the audio and video signal input circuits before outputting them. The audio signal input circuit can receive multiple audio signals, and the video signal input circuit can receive multiple video signals. This enables simultaneous recording of multiple video and audio signal sources, filtering out noise and interference, improving the quality of the teaching video, and allowing for real-time transmission and sharing of teaching videos. It also enables intraoperative conferencing via wireless communication and 4K projection demonstration teaching, significantly improving the user experience for doctors and students. This solves the problem that existing surgical teaching recorders generally only support single audio and single video signal input and lack real-time data transmission and interaction functions.

[0034] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A control circuit for a surgical teaching record, characterized by: The power supply, the power voltage adjustment circuit, the operation demonstration recorder main control circuit, the audio signal input circuit, the video signal input circuit, the wireless communication circuit and the storage circuit are connected, the output end of the power supply is connected with the input end of the power voltage adjustment circuit, the output end of the power voltage adjustment circuit is connected with the operation demonstration recorder main control circuit, the output end of the operation demonstration recorder main control circuit is connected with the storage circuit and the wireless communication circuit, the operation demonstration recorder main control circuit can be connected with other electronic devices through the wireless communication circuit, the input end of the operation demonstration recorder main control circuit is connected with the output end of the audio signal input circuit and the output end of the video signal input circuit, the audio signal input circuit can receive multiple audio signals, the video signal input circuit can receive multiple video signals, the output end of the operation demonstration recorder main control circuit can directly output video signals and audio signals, and the operation demonstration recorder main control circuit can filter the audio signals and the video signals input by the audio signal input circuit and the video signal input circuit.

2. The control circuit of a surgical teachable recorder according to claim 1, characterized in that: The main control chip U1 is arranged in the operation demonstration recorder main control circuit, the main control chip U1 is provided with 100 pins, the U28 pin and the N24 pin of the main control chip U1 are connected with the output end of the power voltage adjustment circuit, the AE38 pin, the AC35 pin, the AB33 pin, the AB36 pin, the AC34 pin, the AA35 pin and the AC33 pin of the main control chip U1 are connected with the storage circuit, the AB24 pin and the AE25 pin of the main control chip U1 are connected with the wireless communication circuit, the AD37 pin and the AE37 pin of the main control chip U1 are connected with the output end of the audio signal input circuit, and the AC36 pin and the AB38 pin of the main control chip U1 are connected with the output end of the video signal input circuit.

3. The control circuit of a surgical teachable recorder according to claim 2, characterized in that: The voltage stabilizing chip U29, the inductor L5, the capacitor C193, the capacitor C186, the capacitor C195, the capacitor C248, the capacitor C249 and the capacitor C246 are arranged in the power voltage adjustment circuit, the voltage stabilizing chip U29 is provided with eight pins, the second pin of the voltage stabilizing chip U29 is connected with the output end of the power supply, one end of the capacitor C193 and one end of the capacitor C186, the third pin of the voltage stabilizing chip U29 is connected with one end of the inductor L5, the other end of the inductor L5 is connected with one end of the capacitor C195, one end of the capacitor C248, one end of the capacitor C249, one end of the capacitor C246 and the U28 pin and the N24 pin of the main control chip U1, and the fourth pin of the voltage stabilizing chip U29, the other end of the capacitor C193, the other end of the capacitor C186, the other end of the capacitor C195, the other end of the capacitor C248, the other end of the capacitor C249 and the other end of the capacitor C246 are grounded.

4. The control circuit of a surgical teachable recorder according to claim 3, characterized in that: The audio signal input circuit is internally provided with an audio signal receiving chip U20, a capacitor C132, a capacitor C133, a capacitor C121 and a capacitor C126, wherein the audio signal receiving chip U20 is provided with 33 pins, the 10th pin of the audio signal receiving chip U20 is connected with one end of the capacitor C121, the 12th pin of the audio signal receiving chip U20 is connected with one end of the capacitor C126, the other end of the capacitor C121 and the other end of the capacitor C126 can be connected with an audio signal input device, the 14th pin of the audio signal receiving chip U20 is connected with one end of the capacitor C132, the 16th pin of the audio signal receiving chip U20 is connected with one end of the capacitor C133, the other end of the capacitor C132 and the other end of the capacitor C133 can be connected with an audio signal input device, the 20th and 22nd pins of the audio signal receiving chip U20 are respectively connected with the AD37 and AE37 pins of the main control chip U1.

5. The control circuit of a surgical teachable recorder according to claim 4, characterized in that: The video signal input circuit is internally provided with a video signal receiving chip U40, a resistor R234 and a resistor R235, wherein the video signal receiving chip U40 is provided with 77 pins, the 26th, 27th, 28th, 29th, 31st, 32nd, 33rd and 34th pins of the video signal receiving chip U40 can be connected with a plurality of HDMI interfaces, the 14th pin of the video signal receiving chip U40 is connected with one end of the resistor R234, the other end of the resistor R234 is connected with the AC36 pin of the main control chip U1, the 13th pin of the video signal receiving chip U40 is connected with one end of the resistor R235, the other end of the resistor R235 is connected with the AB38 pin of the main control chip U1.

6. The control circuit of a surgical teachable recorder according to claim 5, characterized in that: The storage circuit is internally provided with a storage chip U13, the storage chip U13 is provided with 16 pins, the 2nd pin Y of the storage chip U13 is connected with the other end of the inductor L5, the 1st, 3rd, 7th, 8th, 9th, 15th and 16th pins of the storage chip U13 are respectively connected with the AA35, AC33, AC35, AB36, AC34, AB33 and AE38 pins of the main control chip U1.

7. The control circuit of a surgical teachable recorder according to claim 6, characterized in that: The wireless communication circuit is internally provided with a wireless communication chip U11 and a resistor R203, the wireless communication chip U11 is provided with 41 pins, the 14th pin of the wireless communication chip U11 is connected with one end of the resistor R203, the other end of the resistor R203 is connected with the other end of the inductor L5, the 12th and 13th pins of the wireless communication chip U11 are respectively connected with the AB24 and AE25 pins of the main control chip U1, the 19th and 20th pins of the wireless communication chip U11 are also connected with a wireless communication antenna.

8. The control circuit of a surgical teachable recorder according to claim 7, characterized in that: The model of the main control chip U1 is GK7628V100, the model of the voltage stabilizing chip U29 is MP1495, the model of the wireless communication chip U11 is RTL8211F, the model of the audio signal receiving chip U20 is TLV320AIC31, the model of the video signal receiving chip U40 is IT6801FN, the model of the storage chip U13 is SPI-NOR-256Mb, and the power supply is a 12V direct current constant voltage source.

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