Multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance

Abstract

The present invention discloses a multi-lead real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance, comprising a temperature calculation and acquisition circuit, a transmission module, and a plurality of electrode shells mounted on an electrode cap. Gel electrodes are arranged inside the electrode shells, and a platinum resistance probe is arranged on the electrode shells and is located at the center of a transcranial electrical stimulation intervention point. The gel electrode is connected to an electrical stimulation intervention signal generating circuit via a first wire, and the platinum resistance probe is connected to the temperature calculation and acquisition circuit via a second wire. The temperature value output by the temperature calculation and acquisition circuit is transmitted to a user end via the transmission module. The temperature calculation and acquisition circuit comprises a temperature calculation and acquisition circuit and an analog multiplexer. The analog multiplexer is used to connect the multi-lead platinum resistance probe to the temperature calculation and acquisition circuit within a set period to obtain the scalp temperature contacted by the platinum resistance probe according to the approximately linear variation relationship between the impedance value and the temperature within a set temperature range.

Description

Technical Field

[0001] The present invention relates to the field of transcranial electrical stimulation science and technology, and in particular to a multi-conductor real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance. Background Art

[0002] Transcranial electrical stimulation (TES) is a non-invasive, safe, reliable, and cost-effective treatment for common psychiatric disorders. With the development of artificial power sources, research in the 19th and early 20th centuries enabled the use of electric current to treat psychiatric disorders. Recently, there has been a resurgence in research on the use of low-intensity direct current (DC) and alternating current (AC) for the regulation of neurological and cognitive disorders. This technology has rapidly developed in recent decades due to its advantages of not requiring medication or surgery and having no side effects.

[0003] In the application of this technology, regardless of which electrical stimulation mode is used, an electrode structure for releasing electrical stimulation signals is essential. However, in practice, electrical stimulation often lasts for more than several minutes. Due to different objective conditions such as posture and head shape, the contact between the electrodes wrapped in the EEG cap and the scalp cannot be closely attached to the scalp. These factors can lead to excessive heat release from the electrical signals due to excessive impedance or prolonged stimulation time, resulting in burns to the skin. Excessive heat release from electrical stimulation has become a major side effect and unstable factor in the use of electrical stimulation to intervene in mental and cognitive diseases.

[0004] In the related art, a patent application document with publication number CN117159918A proposes an EEG control system, which includes an EEG acquisition module, a transcranial electrical stimulation module, an impedance detection module and a temperature detection module. The temperature detection module starts to detect the temperature of the human cerebral cortex when the transcranial electrical stimulation module performs electrical stimulation. When the temperature exceeds a certain threshold, the transcranial electrical stimulation module stops releasing the stimulation current, which can improve the safety of the system. However, the temperature detection module in this scheme uses a temperature sensor, which is easily damaged during use and has low stability.

[0005] The patent application document with publication number CN104382594A proposes an EEG electrode cap, which integrates the electrode sheet and the fixing ring to facilitate skin pretreatment, glue injection and glue repair. In essence, it is a wet electrode, but the traditional wet electrode operation process is cumbersome and requires applying conductive paste or soaking in saline solution. It will also cause problems such as wet hair and skin discomfort to the subjects. The use of new gel electrodes can largely avoid these problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is how to realize scalp temperature monitoring during electrical stimulation treatment, while taking into account the simplicity of structure and circuit size and the completeness of temperature acquisition function.

[0007] The present invention solves the above technical problems through the following technical means:

[0008] A multi-lead real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance is proposed. The system includes a temperature calculation and acquisition circuit, a transmission module, and several electrode shells mounted on an electrode cap. Gel electrodes are arranged inside the electrode shells, and platinum resistance probes are arranged on the electrode shells and located at the center of the transcranial electrical stimulation intervention point. The gel electrodes are connected to the electrical stimulation intervention signal generating circuit via a first wire, and the platinum resistance probes are connected to the temperature calculation and acquisition circuit via a second wire. The temperature value output by the temperature calculation and acquisition circuit is transmitted to the user end via the transmission module. The temperature calculation and acquisition circuit includes a temperature calculation and acquisition circuit and an analog multiplexer. The temperature calculation and acquisition circuit includes a bridge circuit and a temperature calculation module, wherein:

[0009] The analog multiplexer is used to connect a multi-lead platinum resistance probe to a bridge circuit within a set period. The bridge circuit is used to calculate the impedance value of the connected platinum resistance probe. The temperature calculation module is used to obtain the scalp temperature contacted by the platinum resistance probe according to the approximately linear variation relationship between the impedance value and temperature within a set temperature range.

[0010] Furthermore, the platinum resistance probe is connected to the bridge circuit via the analog multiplexer, and the output of the bridge circuit is connected to the single chip microcomputer;

[0011] The analog multiplexer is used to connect the platinum resistance probes for temperature sensing to the bridge circuit in a time-series pre-numbered manner according to the binary signal sent by the I / O port of the single-chip computer in a time-division multiplexing manner.

[0012] Furthermore, the electrode shell includes an electrode shell cover and an electrode shell base. The electrode shell cover can be fastened to the electrode shell base to fix the gel electrode inside. The gel electrode passes through the electrode shell base and contacts the scalp.

[0013] Furthermore, a mounting plate is provided at the bottom of the electrode shell base, and platinum metal wires extending from both ends of the platinum resistance probe serve as second conductors. The second conductors are sealed with an insulator and fixed to the mounting plate at a set angle so that the platinum resistance probe is located at the center of the transcranial electrical stimulation intervention point.

[0014] Furthermore, the platinum resistance probe is fixed to the mounting plate via double-sided adhesive tape.

[0015] Furthermore, the second wire is sealed with an insulator and then fixed to the mounting plate at an angle of 120 degrees.

[0016] Furthermore, the mounting plate is an EVA foam material cotton board with an annular plate structure, the inner ring size of the mounting plate is the same as the size of the platinum metal wires led out from both ends of the platinum resistance probe, and the outer ring size of the mounting plate is the same as the size of the electrode shell base.

[0017] Furthermore, the hardness of the EVA foam material cotton board is 38 degrees.

[0018] Furthermore, the second wires extending from both ends of the platinum resistance probe are welded to male DuPont wires, and then the male DuPont wires are connected to the temperature calculation and acquisition circuit.

[0019] Furthermore, the top opening of the electrode shell cover is used to place the gel electrode and accommodate the brain electrical stimulation signal generating circuit, and the side opening of the electrode shell cover is used for the second wire to pass through.

[0020] The advantages of the present invention are:

[0021] (1) The overall transcranial electrical stimulation gel electrode system designed by the present invention is fixed on the scalp through an electroencephalogram cap so that the gel electrode and the platinum resistor are in contact with the scalp. The temperature calculation and acquisition circuit is used to obtain the accurate platinum resistor resistance by measuring the voltage drop difference through the bridge method. The scalp temperature during electrical stimulation of this lead electrode is obtained by the characteristic that the platinum resistor resistance changes approximately linearly with temperature within the set temperature range. The multi-lead temperature measurement electrical stimulation electrode is used to perform short-cycle time-division multiplexing temperature acquisition. Finally, the collected real-time temperature is transmitted to the user end of the electrical stimulation instrument through the transmission module for temperature monitoring. By using this multi-lead temperature measurement electrical stimulation electrode, the scalp temperature around the stimulation point during transcranial electrical stimulation can be monitored without affecting the performance of the electroencephalogram stimulation instrument, and the occurrence of scalp burns caused by excessive impedance and poor heat dissipation due to poor electrode contact is prevented. It takes into account simplicity and functionality, meets the needs of scientific research and medical fields for the increasingly extensive side effects and safety monitoring of electrical stimulation intervention research, and has broad application prospects.

[0022] (2) The second wires encapsulated with insulators at both ends of the platinum resistance probe are welded to the DuPont wire to ensure good contact, and the second wires are fixed at an angle of 120 degrees under the EVA foam board, so that the platinum resistance probe is located near the center of the transcranial electrical stimulation intervention point to ensure that the accurate temperature of the stimulation point during intervention is obtained.

[0023] (3) The mounting plate for fixing the platinum resistor is composed of an EVA foam material cotton board of corresponding size and a hardness of about 38 degrees. This type of EVA foam cotton board has a certain elasticity and rigidity to ensure that the platinum resistor temperature probe is closely attached to the scalp near the center of the stimulation point during operation.

[0024] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on a platinum resistor proposed in one embodiment of the present invention;

[0026] Figure 2 1 is a schematic structural diagram of a temperature calculation and acquisition circuit according to an embodiment of the present invention;

[0027] Figure 3 This is a principle block diagram of a temperature calculation and acquisition circuit and a transmission module in one embodiment of the present invention;

[0028] Figure 4 1 is a schematic diagram of the installation structure of a platinum resistance probe in one embodiment of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the electrode shell in one embodiment of the present invention.

[0030] In the picture:

[0031] 1-electrode shell cover, 2-electrode shell base, 3-gel electrode, 4-platinum resistance probe, 5-mounting plate, 6-insulator, 7-temperature calculation and acquisition circuit. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] like Figures 1 to 2As shown, an embodiment of the present invention proposes a multi-lead real-time temperature acquisition transcranial electrical stimulation gel electrode 3 system based on platinum resistance, the system includes a temperature calculation and acquisition circuit 7, a transmission module and several electrode shells installed on the electrode cap, the gel electrode 3 is arranged inside the electrode shell, the platinum resistance probe 4 is arranged on the electrode shell and the platinum resistance probe 4 is located at the center of the transcranial electrical stimulation intervention point, the gel electrode 3 is connected to the electrical stimulation intervention signal generating circuit via a first wire, the platinum resistance probe 4 is connected to the temperature calculation and acquisition circuit 7 via a second wire, and the temperature value output by the temperature calculation and acquisition circuit 7 is transmitted to the user end via the transmission module; the temperature calculation and acquisition circuit 7 includes a temperature calculation and acquisition circuit and an analog multiplexer, and the temperature calculation and acquisition circuit includes a bridge circuit and a temperature calculation module, wherein:

[0034] The analog multiplexer is used to connect the multi-lead platinum resistance probe 4 to the bridge circuit within a set period. The bridge circuit is used to calculate the impedance value of the connected platinum resistance probe 4. The temperature calculation module is used to obtain the scalp temperature contacted by the platinum resistance probe 4 according to the approximately linear change relationship between the impedance value and temperature within the set temperature range.

[0035] It should be noted that in this embodiment, the platinum resistance probe 4 uses a Pt100 platinum resistance wire. The Pt100 platinum resistance wire uses the characteristic that the resistance of the platinum resistor changes linearly with the temperature within a certain temperature range to change the resistance value, and the wires at both ends of the resistance wire are connected to the temperature calculation and acquisition circuit 7. Finally, the collected real-time temperature is transmitted to the user end of the electrical stimulation instrument, that is, the host computer (computer, mobile phone, tablet computer, etc.) for controlling the electrical stimulation instrument through a transmission module (such as Bluetooth, WiFi, etc.) for temperature monitoring, and an analog multiplexer is used to perform short-cycle time-division multiplexing temperature acquisition on the multi-channel temperature-measuring electrical stimulation electrode. By using this multi-channel temperature-measuring electrical stimulation electrode, it is possible to monitor the scalp temperature around the stimulation point during transcranial electrical stimulation without affecting the performance of the brain electrical stimulation instrument, and prevent scalp burns caused by excessive impedance and poor heat dissipation due to poor electrode contact. It takes into account simplicity and functionality, meets the needs of scientific research and medical fields for increasingly extensive electrical stimulation intervention research side effects and safety monitoring, and has broad application prospects.

[0036] As a further preferred technical solution, Figure 2 As shown, the platinum resistance probe 4 is connected to the bridge circuit via the analog multiplexer, and the output of the bridge circuit is connected to the single-chip microcomputer; the analog multiplexer is used to connect the platinum resistance probe 4 for temperature sensing to the bridge circuit in a time-sequential pre-numbered manner in accordance with the binary signal emitted by the I / O port of the single-chip microcomputer in the form of time division multiplexing.

[0037] It should be noted that the Pt100 platinum resistance wire can be connected to the bridge circuit composed of precision chip resistors on the circuit board through the DuPont line connected to the wire by plugging and unplugging to obtain accurate temperature-related voltage drop; the voltage drop across the Pt100 platinum resistor is read using the microcontroller analog-to-digital conversion interface and the impedance value of the Pt100 platinum resistance wire is obtained according to the bridge circuit resistance calculation method, and the scalp temperature contacted by the platinum resistance probe 4 is obtained from the approximately linear change relationship between the impedance value of the platinum resistor and the temperature in the temperature range of 0-100℃; the binary signal sent by the analog multiplexer and the microcontroller I / O port is used to convert multiple The temperature of the lead is obtained by connecting the EEG stimulation electrodes to the bridge circuit with a time-sequential pre-number, and the real-time temperature of multi-lead EEG stimulation in a short period (within 1 second) is obtained using the same algorithm and principle. For example, the temperature calculation and acquisition circuit 7 connects the platinum resistor to the bridge circuit to obtain the voltage drop caused by the resistance of the platinum resistor, and then calculates the temperature value at the connected lead electrode corresponding to the voltage drop through the single-chip microcomputer program. Finally, the single-chip microcomputer program controls the analog multiplexer to connect the multi-lead (1-8 leads) Pt100 platinum resistor to the bridge circuit within a short period (1 second), thereby realizing multi-lead real-time temperature acquisition and monitoring and transmitting the results to the user end through the transmission module.

[0038] As a further preferred technical solution, Figure 3 As shown, the Pt100 platinum resistor probe 4 is connected to the temperature calculation and acquisition circuit 7 through the female connector and forms a bridge circuit with R1m, R2m, and R3m to calculate the accurate platinum resistor resistance value. The battery power supply and the voltage stabilization circuit provide stable voltage. The bridge circuit obtains the different voltage drops caused by the change in the impedance value of the Pt100 platinum resistor due to temperature change through the bridge circuit principle, and then reads the voltage drop through the microcontroller I / O module and calculates the temperature value at the stimulation electrode point corresponding to the voltage drop; the MUX36S08 chip that receives the microcontroller encoding signal controls the on and off of the eight pins S1-S8, and the analog multiplexer connects the platinum resistor probe 4 for temperature sensing in the eight conductive stimulation signals to the bridge circuit in the form of time division multiplexing; the microcontroller program controls the analog multiplexer to form a multiplexing circuit to connect the multi-lead (1-8 leads) Pt100 platinum resistors to the bridge circuit within a short period (1 second), thereby realizing multi-lead real-time temperature acquisition and monitoring.

[0039] Furthermore, the transmission module and the temperature calculation and acquisition circuit 7 are integrated on a circuit board and controlled by a single-chip microcomputer program. The collected temperature value is transmitted to the user end for visual monitoring, the voltage drop is read at the single-chip microcomputer I / O port, and the single-chip microcomputer program is burned to realize the calculation of the voltage drop to temperature and the access pin control of the analog multiplexer input end.

[0040] As a further preferred technical solution, Figures 4 and 5As shown, the electrode shell includes an electrode shell cover 1 and an electrode shell base 2. The electrode shell cover 1 can be fastened to the electrode shell base to fix the gel electrode 3 inside. The gel electrode 3 passes through the electrode shell base 2 and contacts the scalp.

[0041] Specifically, the internal structure of the electrode shell cover 1 is designed to accommodate a fixed conductive gel electrode 3, and the electrode shell base 2 and the motor shell cover can be firmly fastened to fix the internal gel electrode 3. The gel electrode 3 passes through the electrode shell base 2 and contacts the scalp. The gel electrode 3 itself is conductive and has strong conductivity and can be used for electrical stimulation. The first wire is connected to the electrode contact under the electrode shell cover 1 to generate a stimulation signal circuit, and the hole in the electrode shell base 2 passes through to contact the scalp for brain electrical stimulation intervention. The electrode shell base 2 bayonet fixes the entire platinum resistance-based multi-conductor real-time temperature acquisition transcranial electrical stimulation gel electrode 3 system on a dedicated electrode cap.

[0042] As a further preferred technical solution, a mounting plate 5 is provided at the bottom of the electrode shell base 2, and the platinum metal wires led out from both ends of the platinum resistance probe 4 serve as second wires. The second wires led out from both ends of the platinum resistance probe 4 are welded to the male DuPont wires, and then the male DuPont wires are connected to the temperature calculation and acquisition circuit 7. The Pt100 platinum resistance wire is connected to the bridge circuit composed of precision chip resistors on the circuit board through the DuPont wires connected to the wires by a plug-in method. The wires plastic-encapsulated by the insulator 6 led out from both ends of the platinum resistance probe 4 are connected in series to the resistance bridge circuit module of the temperature calculation and acquisition circuit 7, and then the resistance bridge voltage drop and impedance value calculation formula are used to obtain the real-time impedance value of the platinum resistance probe 4 that changes with temperature;

[0043] The second wire is plastic-sealed with an insulator 6 and fixed to the mounting plate 5 at a set angle so that the platinum resistance probe 4 is located at the center of the transcranial electrical stimulation intervention point to ensure accurate stimulation point temperature during intervention.

[0044] As a further preferred technical solution, the second wire is plastic-sealed with an insulator 6 and fixed to the mounting plate 5 at an angle of 120 degrees. The wires plastic-sealed with an insulator 6 leading out from both ends of the Pt100 platinum resistance wire probe are fixed under the EVA foam cotton board at an angle of 120 degrees, so that the platinum resistance probe 4 is located near the center of the transcranial electrical stimulation intervention point to ensure that the accurate temperature of the stimulation point during intervention is obtained.

[0045] As a further preferred technical solution, the mounting plate 5 is an EVA foam material cotton board with a ring-shaped plate structure, the hardness of the EVA foam material cotton board is 38 degrees, the inner ring size of the mounting plate 5 is the same as the size of the platinum metal wire led out from both ends of the platinum resistance probe 4, the outer ring size of the mounting plate 5 is the same as the size of the electrode shell base 2, and the platinum resistance probe 4 is fixed to the mounting plate 5 by double-sided tape.

[0046] It should be noted that the platinum resistor fixing device is designed in the shape of a circular ring, which is exactly the same size as the electrode shell base 2, so that the gel electrode 3 can perform electrical brain stimulation intervention on the scalp through the platinum resistor fixing device; and the inner ring size of the platinum resistor fixing device is the same as the size of the platinum metal wires on both sides of the Pt100 platinum resistor wire platinum resistor probe 4, ensuring that the platinum resistor probe 4 is located near the center of the intervention point during electrode operation.

[0047] The mounting plate 5 is composed of an EVA foam material cotton board of corresponding size and a hardness of about 38 degrees. This type of EVA foam cotton board has a certain elasticity and rigidity, ensuring that the platinum resistance temperature probe is closely attached to the scalp near the center of the stimulation point during operation, and the double-sided adhesive of the platinum resistance fixing device can fix the Pt100 platinum resistance wire and the lower end of the electrode shell base 2 together.

[0048] As a further preferred technical solution, the top of the electrode shell cover 1 is opened to place the gel electrode 3 and accommodate the brain electrical stimulation signal generating circuit, and the side opening of the electrode shell cover 1 is for the second wire to pass through, wherein the electrode shell base 2 is connected to the platinum resistor fixing device and has a middle opening for the gel electrode 3 to pass through and contact the scalp; the electrode shell cover 1 can be tightly buckled with the electrode shell base 2 and have holes for the wires at both ends of the platinum resistor to be connected to the gel electrode 3, and the wires pass through to connect the temperature calculation and acquisition circuit 7 and the electrical stimulation signal generating circuit.

[0049] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0051] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance, characterized in that: The system includes a temperature calculation and acquisition circuit, a transmission module, and several electrode shells installed on an electrode cap. A gel electrode is arranged inside the electrode shell, and a platinum resistance probe is arranged on the electrode shell and is located at the center of the transcranial electrical stimulation intervention point. The gel electrode is connected to the electrical stimulation intervention signal generating circuit via a first wire, and the platinum resistance probe is connected to the temperature calculation and acquisition circuit via a second wire. The temperature value output by the temperature calculation and acquisition circuit is transmitted to the user end via the transmission module; the temperature calculation and acquisition circuit includes a temperature calculation acquisition circuit and an analog multiplexer, and the temperature calculation acquisition circuit includes a bridge circuit and a temperature calculation module, wherein: The analog multiplexer is used to connect a multi-lead platinum resistance probe to a bridge circuit within a set period. The bridge circuit is used to calculate the impedance value of the connected platinum resistance probe. The temperature calculation module is used to obtain the scalp temperature contacted by the platinum resistance probe according to the approximately linear variation relationship between the impedance value and temperature within a set temperature range.

2. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 1, characterized in that: The platinum resistance probe is connected to the bridge circuit via the analog multiplexer, and the output of the bridge circuit is connected to the single chip microcomputer; The analog multiplexer is used to connect the platinum resistance probes for temperature sensing to the bridge circuit in a time-series pre-numbered manner according to the binary signal sent by the I / O port of the single-chip computer in a time-division multiplexing manner.

3. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 1, characterized in that: The electrode shell includes an electrode shell cover and an electrode shell base. The electrode shell cover and the electrode shell base can be fastened to fix the gel electrode inside. The gel electrode passes through the electrode shell base and contacts the scalp.

4. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 3, characterized in that: A mounting plate is provided at the bottom of the electrode shell base, and platinum wires extending from both ends of the platinum resistance probe serve as second conductors. The second conductors are sealed with an insulator and fixed to the mounting plate at a set angle so that the platinum resistance probe is located at the center of the transcranial electrical stimulation intervention point.

5. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 4, characterized in that: The platinum resistance probe is fixed to the mounting plate via double-sided adhesive tape.

6. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 4, characterized in that: The second wire is sealed with an insulator and fixed to the mounting plate at an angle of 120 degrees.

7. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 4, characterized in that: The mounting plate is an EVA foam material cotton board with an annular plate structure. The inner ring size of the mounting plate is the same as the size of the platinum metal wires led out from both ends of the platinum resistance probe, and the outer ring size of the mounting plate is the same as the size of the electrode shell base.

8. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 7, characterized in that: The hardness of the EVA foam material cotton board is 38 degrees.

9. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 4, characterized in that: The second wires drawn out from both ends of the platinum resistance probe are welded to the male DuPont wires, and then the male DuPont wires are connected to the temperature calculation and acquisition circuit.

10. The multi-channel real-time temperature acquisition transcranial electrical stimulation gel electrode system based on platinum resistance as claimed in claim 1, characterized in that: The top of the electrode shell cover is opened to place the gel electrode and accommodate the brain electrical stimulation signal generating circuit, and the side opening of the electrode shell cover is opened for the second wire to pass through.

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