Roller shutter switching device based on NFC (Near Field Communication)

Abstract

The embodiment of the utility model provides a roller shutter opening and closing device based on NFC, and belongs to the technical field of NFC. The roller shutter opening and closing device based on the NFC comprises a roller shutter device which is provided with an NFC card reading area and used for receiving an NFC induction signal and executing roller shutter opening and closing operation; the control chip is in communication connection with the NFC card reading area and is used for reading the NFC induction signal; and the NFC indicating circuit is in communication connection with the NFC sensing chip, comprises a plurality of indicating lamps with different colors, and is used for executing the triggering of the indicating lamps with the corresponding colors based on the transmitted signals of the pins of the NFC sensing chip. According to the scheme of the utility model, by introducing the NFC technology, the safety control and convenient operation of the roller shutter device are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of NFC, and particularly relates to a rolling shutter switch device based on NFC. Background Art

[0002] An automotive rolling shutter switch, especially a rolling shutter switch of the door lock type, is an important part of an automotive safety system, mainly used for controlling the locking and unlocking of vehicle doors. Traditional rolling shutter switches usually rely on remote controls or physical buttons to achieve their switching control. Although these control methods can already meet the basic functional requirements, some technical defects have been exposed in practical applications and need to be improved urgently.

[0003] First of all, the security issue is one of the most prominent problems in the existing control solutions. Remote controls usually achieve the control of door locks through wireless signals, but such signals are vulnerable to interference or interception, resulting in the accidental locking or unlocking of doors, and may even be exploited by lawbreakers for illegal intrusion. In addition, although the operation of physical buttons is simple and direct, due to their fixed position on a specific part of the vehicle door or body, they are vulnerable to external physical damage or manipulation, which not only increases the safety hazards for vehicle owners but also affects the overall protection ability of the vehicle.

[0004] Secondly, poor portability is also a significant defect of the existing control solutions. Although remote controls are small in size, they are easy to lose or damage. Especially when vehicle owners enter and exit frequently, the management and use of remote controls become very inconvenient. And due to the limitation of the fixed position of physical buttons, vehicle owners cannot conveniently control the locking state of the vehicle door when they are away from the vehicle, lacking flexibility and convenience.

[0005] In summary, the existing control solutions for automotive rolling shutter switches have obvious deficiencies in terms of security and portability and cannot fully meet the needs of users in practical applications. Therefore, it is urgent to develop an automotive rolling shutter switch control solution with higher security, stronger portability, and easy to use. Summary of the Utility Model

[0006] The purpose of the embodiments of the utility model is to provide a rolling shutter switch device based on NFC to solve the problem that the existing control solutions for automotive rolling shutter switches have obvious deficiencies in terms of security and portability.

[0007] To achieve the above object, an embodiment of the present utility model provides a rolling curtain switch device based on NFC. The rolling curtain switch device based on NFC includes: a rolling curtain device provided with an NFC card reading area, configured to receive an NFC induction signal and perform a rolling curtain switch operation; a control chip communicatively connected to the NFC card reading area, configured to read the NFC induction signal; and an NFC indication circuit communicatively connected to the NFC induction chip, including a plurality of indicator lights of different colors, configured to trigger the indicator lights of corresponding colors based on the outgoing signals of each pin of the NFC induction chip.

[0008] Optionally, the rolling curtain switch device based on NFC further includes a power supply circuit, configured to supply power to each device or circuit in the rolling curtain switch device based on NFC.

[0009] Optionally, starting from the power input terminal, the power supply circuit is sequentially connected with a transient voltage suppression diode, a Schottky diode and a plurality of capacitors, and outputs a target voltage through a voltage regulator.

[0010] Optionally, the rolling curtain device includes: a switch handle, configured to traction the corresponding door panel after the rolling curtain switch is opened; and the NFC card reading area is arranged on the surface of the switch handle.

[0011] Optionally, the switch handle includes a groove for embedding the NFC card reading area; the NFC card reading area includes a silica gel body covered with a plastic upper cover, and the thickness of the silica gel body is the same as the depth of the groove on the switch handle for embedding the NFC card reading area; there are through holes at the four corner positions of the silica gel body for docking with the edge of the groove; there are fixing bolts passing through the through holes at the four corner positions of the plastic upper cover; the NFC card reading area further includes a plastic lower cover arranged at the bottom layer, and there are fixing buckles at the four corner positions of the plastic lower cover for fixedly embedding the NFC card reading area on the switch handle.

[0012] Optionally, the NFC card reading area further includes an NFC induction circuit arranged under the silica gel body, configured to transmit the NFC induction signal to the control chip.

[0013] Optionally, the control chip is a 32 / 8-bit single-chip microcomputer and an NFC radio frequency card chip.

[0014] Optionally, the NFC indication circuit includes: an NFC indication power supply circuit, a blue LED indication circuit, a red LED indication circuit, and a white LED indication circuit; the red LED indication circuit is connected to the first pin of the control chip that outputs the NFC reading failure signal, and the red LED light leads out the reading failure signal through the collector of the first triode connected to the first pin. A first fixed-value resistor is connected in series between the red LED light and the collector of the first triode.

[0015] Optionally, the blue LED indication circuit is connected to the second pin of the control chip that outputs the NFC reading success signal, and the blue LED light leads out the reading success signal through the collector of the second triode connected to the second pin. A second fixed-value resistor is connected in series between the blue LED light and the collector of the second triode; the white LED indication circuit is connected to the third pin of the control chip that outputs the status signal of successful NFC reading, and the white LED light leads out the status signal of successful reading through the collector of the third triode connected to the third pin. A third fixed-value resistor is connected in series between the white LED light and the collector of the third triode; among them, the NFC reading success signal is an instantaneous switch signal, and the status signal of successful NFC reading is a continuous signal.

[0016] Optionally, a trigger button and a corresponding button trigger circuit are further provided on the rolling curtain device; the button trigger circuit is communicatively connected to the control chip and is used to control the rolling curtain switch to open when the NFC reading is successful and the trigger button is triggered.

[0017] Through the above technical solution, the solution of the present utility model realizes the safe control and convenient operation of the rolling curtain device by introducing NFC (Near Field Communication) technology. Since the NFC sensing distance is extremely small and it only works effectively within a few centimeters, the safety of the device is greatly improved, and problems such as signal interference or interception that may be suffered by traditional remote controls or physical buttons are avoided. In addition, users can trigger and control the rolling curtain device by carrying an NFC card or entering NFC information into the mobile phone, which greatly improves the portability. Users no longer need to carry an extra remote control or go to a fixed physical button position for operation, and the use experience is more flexible and convenient.

[0018] Other features and advantages of the embodiments of the present utility model will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0019] The drawings are used to provide a further understanding of the embodiments of the present utility model and constitute a part of the specification. Together with the following specific implementation, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0020] Figure 1It is a schematic structural diagram of a rolling curtain switch device based on NFC provided by an embodiment of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of a power supply circuit provided by an embodiment of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of an NFC card reading area provided by an embodiment of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of an NFC indication circuit provided by an embodiment of the present utility model.

[0024] Explanation of reference numerals

[0025] 10 - Groove; 20 - Plastic upper cover; 30 - Silicone body; 40 - Perforation; 50 - Fixing bolt; 60 - Plastic lower cover; 70 - NFC induction circuit. Specific embodiments

[0026] The following details the specific embodiments of the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the embodiments of the present utility model, and are not used to limit the embodiments of the present utility model.

[0027] In the embodiments of the present utility model, unless otherwise stated, the orientation terms such as "upper, lower, left, right" generally refer to the orientation or positional relationship based on the orientation shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed when in use.

[0028] The terms "first", "second", "third", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0029] The terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal, vertical or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In addition, terms such as "substantially", "basically", etc. are intended to indicate that the relevant content does not require absolute precision, but can have a certain deviation. For example: "substantially equal" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" during actual production and operation processes, there is generally a certain deviation. Therefore, in addition to absolute equality, "substantially equal" also includes the above-mentioned situation of having a certain deviation. Taking this as an example, in other cases, unless otherwise specified, terms such as "substantially", "basically", etc. have meanings similar to the above.

[0031] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Please refer to Figure 1 , this embodiment provides a rolling shutter switch device based on NFC. The rolling shutter switch device based on NFC includes: a rolling shutter device provided with an NFC card reading area, configured to receive an NFC induction signal and perform a rolling shutter switch operation; a control chip communicatively connected to the NFC card reading area, configured to read the NFC induction signal; an NFC indication circuit communicatively connected to the NFC induction chip, including a plurality of indicator lights of different colors, configured to trigger the corresponding color indicator lights based on the outgoing signals of the respective pins of the NFC induction chip.

[0033] Preferably, the rolling shutter switch device based on NFC further includes a power supply circuit, configured to supply power to each device or circuit in the rolling shutter switch device based on NFC.

[0034] In the embodiment of the present utility model, the rolling shutter switch device based on NFC further integrates a power supply circuit to ensure the stable power supply of the entire device. The power supply circuit can convert the external input power into a working voltage of 3.3V to meet the power requirements of each chip and circuit in the device and ensure its normal operation. The power supply circuit supports a maximum input voltage of 30V, adapts to different power input situations, and enhances the compatibility and stability of the system. Through this design, the device can not only work normally under low-power conditions, but also operate stably under higher voltage inputs, avoiding system failures caused by voltage fluctuations.

[0035] Based on the solution of the present utility model, the power supply circuit can stably convert the input voltage into 3.3V, ensuring that each chip and circuit operates within the optimal voltage range, guaranteeing the reliability of the device and the stability of long-term operation. The support for a maximum input voltage range of 30V enables the device to adapt to different power input conditions, expanding the application scenarios, especially in automotive and industrial environments, with better adaptability. Through the voltage regulation design, it effectively avoids the damage that voltage fluctuations may bring to the chips and circuits of the rolling shutter switch device, improving the safety and lifespan of the system.

[0036] Preferably, as Figure 2, starting from the power input terminal, the power supply circuit is sequentially connected with a transient voltage suppression diode, a Schottky diode and multiple capacitors, and outputs a target voltage through a voltage regulator.

[0037] Specifically, starting from the power input terminal, a transient voltage suppression diode (TVS diode), a Schottky diode and multiple capacitor elements are sequentially connected, and then the voltage is stably output as the target voltage of 3.3V through a voltage regulator. The transient voltage suppression diode (SMAJ24CA) plays a role in circuit protection. When the input voltage suddenly increases or a surge occurs, it can quickly respond and absorb the overvoltage to prevent damage to subsequent circuit components. The following Schottky diode (SS14) has a low forward voltage drop and a fast recovery time, which further improves the energy efficiency of the circuit and prevents reverse current from damaging the circuit. The configuration of multiple capacitors is used for filtering to eliminate the noise and interference in the input power supply and ensure the stability and purity of the output voltage. Finally, through the voltage regulator (ME6239A33), the input voltage is stabilized to the operating voltage of 3.3V and supplied to each chip and circuit in the system.

[0038] Based on the solution of the present utility model, the combination of the transient voltage suppression diode and the Schottky diode provides effective overvoltage protection and reverse current protection for the circuit, reducing the risk of damage to circuit components caused by abnormal voltage. The multi-stage capacitor filtering design significantly reduces the power supply noise and ripple, ensures the stability and purity of the output voltage, and improves the working reliability of the system.

[0039] Preferably, the rolling curtain device includes: a switch handle for the user to traction the corresponding door panel after the rolling curtain switch is opened; the NFC card reading area is arranged on the surface of the switch handle.

[0040] In the embodiment of the present utility model, in the rolling curtain device, the switch handle not only undertakes the traditional physical traction function, but also is cleverly integrated with the NFC card reading area. Arranging the NFC card reading area on the surface of the switch handle enables the user to complete NFC sensing and the control of the rolling curtain switch only by gently touching the handle when approaching the car door. This design organically combines electronic control and mechanical operation, greatly improving the user experience. The user no longer needs additional operation steps or devices and can naturally control the rolling curtain device through the daily switch action.

[0041] Based on the solution of the present utility model, by integrating the NFC card reading area on the switch handle, the user can realize the control of the rolling curtain during the natural operation process without additional devices or steps, and the use process is more fluent and intuitive. It avoids the additional exposure of the NFC module and protects the electronic components from the external environment.

[0042] Preferably, asFigure 3 The switch handle includes a groove 10 for embedding the NFC card reading area; the NFC card reading area includes a silicone body 30 covered with a plastic upper cover 20, the thickness of the silicone body 30 is the same as the depth of the groove 10 on the switch handle for embedding the NFC card reading area; the four corner points of the silicone body 30 exist at the through holes 40 that are butted against the edge of the groove 10; the four corner points of the plastic upper cover 20 exist at the fixing bolts 50 that pass through the through holes 40; the NFC card reading area also includes a plastic lower cover 60 arranged at the bottom layer, the four corner points of the plastic lower cover 60 exist at the fixing buckles arranged opposite to the fixing bolts 50, and are used to embed and fix the NFC card reading area on the switch handle.

[0043] In the embodiment of the utility model, the design of the switch handle fully considers the integration and protection of the NFC module. By setting a groove 10 for embedding the NFC card reading area on the handle, the NFC module and the switch handle can be closely combined. The NFC card reading area adopts a silicone body 30 structure covered with a plastic upper cover 20. The thickness of the silicone body 30 accurately matches the depth of the groove 10 to ensure that the surface is flat after embedding and does not affect the normal operation of the user. The four corners of the silicone body 30 are connected to the edge of the groove 10. By setting perforations 40 at these corner points, a firm fixation with the plastic upper cover 20 is achieved. The plastic upper cover 20 firmly fixes the NFC module on the switch handle through the fixing bolts 50 that penetrate these perforations 40, further enhancing the stability and durability of the NFC module. The plastic lower cover 60 is used as the bottom layer. Through the fixing buckle directly opposite to the fixing bolt 50, the entire NFC card reading area is firmly embedded in the switch handle to prevent loosening or falling off.

[0044] Based on the solution of the utility model, through the carefully designed groove 10, perforation 40 and fixing bolt 50 structure, the NFC card reading area can be firmly embedded in the switch handle, reducing loosening or falling off caused by vibration or external force during use, and improving the durability of the overall device. The precise matching of the depth of the silicone body 30 and the groove 10 ensures that the embedding process of the NFC module is smooth and unobstructed, while maintaining the smooth and beautiful appearance of the switch handle without affecting the user's feel and operating experience. The plastic cover 20 not only provides protection for the NFC module, but also effectively prevents dust, moisture or other impurities in the external environment from corroding the NFC module. Combined with the elastic characteristics of silicone, users can get a more comfortable touch when operating the switch handle, while ensuring the reliability of the NFC function.

[0045] Preferably, the NFC card reading area further includes an NFC sensing circuit 70 disposed in the lower layer of the silicone body 30, for transmitting the NFC sensing signal to the control chip.

[0046] In the embodiment of the present utility model, the design of the NFC card reading area further optimizes the transmission and processing capabilities of NFC signals. The NFC induction circuit 70 is ingeniously embedded in the lower layer of the silicone body 30, which not only effectively utilizes the space but also enhances the stability and accuracy of NFC signals. By integrating the induction circuit with the silicone body 30, the NFC module can be more closely combined with the switch handle, reducing interference and attenuation during signal transmission. The main function of this induction circuit is to capture and process signals from NFC devices and quickly transmit these signals to the control chip to ensure the rapid response and accurate execution of the system.

[0047] Preferably, the control chip is a 32 / 8-bit single-chip microcomputer and an NFC radio frequency card chip. Most preferably, the control chip is a GD32F103C8T6 chip.

[0048] Preferably, as Figure 4 , the NFC indication circuit includes: an NFC indication power supply circuit, a blue LED indication circuit, a red LED indication circuit, and a white LED indication circuit; the red LED indication circuit is connected to the first pin of the control chip that outputs the NFC reading failure signal. The red LED light leads out the reading failure signal through the collector of the first triode connected to the first pin, and a first fixed-value resistor is connected in series between the red LED light and the collector of the first triode.

[0049] Further, the blue LED indication circuit is connected to the second pin of the control chip that outputs the NFC reading success signal. The blue LED light leads out the reading success signal through the collector of the second triode connected to the second pin, and a second fixed-value resistor is connected in series between the blue LED light and the collector of the second triode; the white LED indication circuit is connected to the third pin of the control chip that outputs the NFC reading success status signal. The white LED light leads out the reading success status signal through the collector of the third triode connected to the third pin, and a third fixed-value resistor is connected in series between the white LED light and the collector of the third triode; among them, the NFC reading success signal is an instantaneous switch signal, and the NFC reading success status signal is a continuous signal.

[0050] In the embodiment of the present utility model, the NFC indication circuit is a key feedback mechanism in the entire rolling curtain switch device. Through three different colors of LED lights, namely red, blue, and white, it provides real-time feedback information to the user during the NFC reading process. The indication circuit includes an NFC indication power supply circuit, a blue LED indication circuit, a red LED indication circuit, and a white LED indication circuit. Each LED circuit is controlled by different pins of the control chip. Specifically, the red LED indication circuit is used to indicate the situation of failed NFC reading. When the control chip detects a reading failure signal, the signal is transmitted to the red LED circuit through the first pin. After the collector of the first triode receives the signal, the red LED lights up, and the current is controlled through the series-connected first fixed-value resistor to ensure the stable operation of the circuit.

[0051] Furthermore, the blue LED indication circuit is used to indicate successful NFC reading. When the control chip detects successful NFC reading, the signal is transmitted to the blue LED circuit through the second pin. The collector of the second triode receives this signal, and the blue LED lights up instantaneously. Similarly, the current is adjusted through the series-connected second fixed-value resistor to ensure the safety of the circuit.

[0052] Furthermore, the white LED indication circuit is used to indicate the status signal after successful NFC reading. Different from the instantaneous signal of the blue LED, the white LED receives a continuous signal from the control chip through the third pin. After the signal is led out from the collector of the third triode, the white LED lights up continuously, and the current is controlled through the third fixed-value resistor to indicate that the NFC operation is successful and in an effective state.

[0053] Based on the solution of the present utility model, through the combination of red, blue, and white LED lights, users can intuitively understand the success or failure of NFC operations, greatly improving the user experience and the convenience of operation. Each LED circuit adjusts the current through a fixed-value resistor in series with a triode to ensure the stability and safety of each circuit, preventing component damage caused by current fluctuations. The blue LED provides instantaneous success feedback, while the white LED continuously lights up to indicate the effectiveness of the NFC status, ensuring that users clearly understand the current system status after the operation and avoiding misoperations.

[0054] Preferably, a trigger button and a corresponding button trigger circuit are further provided on the rolling curtain device; the button trigger circuit is communicatively connected to the control chip and is used to control the rolling curtain switch to open when the NFC reading is successful and the trigger button is triggered.

[0055] In the embodiment of the present utility model, a trigger button and a corresponding button trigger circuit are further integrated in the rolling curtain device, significantly enhancing the operation flexibility and user experience of the device. The button trigger circuit is closely communicatively connected to the control chip, enabling the user to control the state of the rolling curtain switch by manually pressing the button on the basis of successfully triggering NFC reading. Specifically, when the control chip receives the signal of successful NFC reading, if the user presses the trigger button, the button trigger circuit will immediately transmit the trigger signal to the control chip. Subsequently, the control chip executes the corresponding switch command to quickly open the rolling curtain switch.

[0056] Preferably, two patch buttons are used, and the MCU detects the button state in real time. When one of the buttons is pressed, the MCU will execute the corresponding command. For example, when the controller is in the HID mode and Bluetooth is already connected within the signal range, pressing the S1 button will open the rolling curtain. The solution of the present utility model provides a dual control mode, which can not only achieve non-contact control through NFC, but also achieve direct control through physical buttons, greatly improving the convenience and operation reliability of the device. Even when NFC fails to work properly or the user prefers manual operation, the button trigger circuit can still ensure the normal use of the device.

[0057] The optional implementation manners of the embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present utility model are not limited to the specific details in the above implementation manners. Within the scope of the technical concept of the embodiments of the present utility model, various simple modifications can be made to the technical solutions of the embodiments of the present utility model, and these simple modifications all belong to the protection scope of the embodiments of the present utility model.

[0058] In addition, it should be noted that, in the above specific implementation manners, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the embodiments of the present utility model will not separately describe various possible combination manners.

[0059] Those skilled in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by instructing relevant hardware through a program. The program is stored in a storage medium, including several instructions for enabling a single-chip microcomputer, a chip or a processor to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs.

[0060] In addition, any combination can be made among various different embodiments of the present utility model embodiment, as long as it does not violate the idea of the present utility model embodiment, and it should also be regarded as the content disclosed by the present utility model embodiment.

Claims

1. A rolling shutter switch device based on NFC, characterized in that, The NFC-based rolling shutter switch device comprises: A rolling curtain device provided with an NFC card reading area, used for receiving NFC sensing signals and for performing rolling curtain opening and closing operations; A control chip connected to the NFC card reading area for reading the NFC sensing signal; The NFC indication circuit connected to the NFC sensing chip for communication includes a plurality of indicator lights of different colors, and is used to trigger the indicator lights of corresponding colors based on the outgoing signals of the pins of the NFC sensing chip.

2. The NFC-based rolling shutter switch device according to claim 1, wherein The NFC-based rolling shutter switch device also includes a power supply circuit for supplying power to various devices or circuits in the NFC-based rolling shutter switch device.

3. The NFC-based rolling curtain switch device according to claim 2, characterized in that, The power supply circuit starts from the power supply input terminal, is connected in sequence with a transient voltage suppression diode, a Schottky diode and a plurality of capacitors, and outputs a target voltage through a voltage regulator.

4. The NFC-based rolling shutter switch device according to claim 1, characterized in that, The rolling curtain device comprises: The switch handle is used by the user to pull the corresponding door panel after the roller shutter switch is opened; The NFC card reading area is arranged on the surface of the switch handle.

5. The NFC-based rolling curtain switch device according to claim 4, wherein, The switch handle includes a groove for embedding the NFC card reading area; The NFC card reading area includes a silicone body covered with a plastic cover, and the thickness of the silicone body is the same as the depth of the groove on the switch handle for embedding the NFC card reading area; The four corner points of the silicone body are located at the perforations where the edges of the grooves meet; There are fixing bolts penetrating through the perforations at the four corner points of the plastic upper cover; The NFC card reading area also includes a plastic lower cover arranged at the bottom layer, and the four corner points of the plastic lower cover exist in the fixing buckles arranged opposite to the fixing bolts, which are used to embed and fix the NFC card reading area on the switch handle.

6. The NFC-based roller shutter switch device according to claim 5, wherein, The NFC card reading area also includes an NFC sensing circuit arranged in the lower layer of the silicone body, which is used to transmit the NFC sensing signal to the control chip.

7. The NFC-based rolling curtain switch device according to claim 1, wherein, The control chip is a 32 / 8-bit single-chip microcomputer and an NFC radio frequency card chip.

8. The NFC-based rolling shutter switch device according to claim 1, wherein, The NFC indication circuit comprises: NFC indication power supply circuit, blue LED indication circuit, red LED indication circuit and white LED indication circuit; The red LED indication circuit is connected to the first pin of the control chip that outputs the NFC read failure signal. The red LED lamp leads out the read failure signal through the collector of the first transistor connected to the first pin. A first fixed value resistor is connected in series between the red LED lamp and the collector of the first transistor.

9. The NFC-based roller shutter switch device according to claim 8, characterized in that, The blue LED indication circuit is connected to the second pin of the control chip outputting the NFC reading success signal, and the blue LED light leads out the reading success signal through the collector of the second transistor connected to the second pin, and a second fixed value resistor is connected in series between the blue LED light and the collector of the second transistor; The white LED indication circuit is connected to the third pin of the control chip outputting the NFC reading success status signal, and the white LED lamp leads out the reading success status signal through the collector of the third transistor connected to the third pin, and a third fixed value resistor is connected in series between the white LED lamp and the collector of the third transistor; wherein, The NFC reading success signal is an instantaneous switch signal, and the status signal of successful NFC reading is a continuous signal.

10. The NFC-based rolling shutter switch device according to claim 1, characterized in that, A trigger button and a corresponding button trigger circuit are also provided on the rolling curtain device; The button trigger circuit is communicatively connected to the control chip and is used to control the rolling curtain switch to open when the NFC reading is successful and the trigger button is triggered.

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