Remote sensing key

Abstract

The invention discloses a remote sensing key, and relates to the technical field of wireless equipment, the remote sensing key comprises a wireless charging module, a power supply module and a wireless communication module; the voltage output end of the wireless charging module is connected to the voltage input end of the power supply module; the voltage output end of the power supply module is connected to the voltage input end of the wireless communication module; a transmitting antenna is arranged on the wireless communication module to transmit a key wireless signal; the remote sensing key is suitable for being arranged at a target position of the mobile terminal; the target position of the mobile terminal is also provided with a reverse charging module. When the reverse charging function of the mobile terminal is opened, the remote sensing key enters the working state, remote wireless unlocking operation can be achieved at any time on the premise that a power source of the key does not need to be used, and the reliability of the remote sensing key is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wireless devices, and in particular to a remote sensing key. Background Art

[0002] A wireless key refers to a device or system that uses wireless communication technology to achieve identity authentication or control functions. It is widely used in automobiles, smart homes, access control management and other fields.

[0003] Wireless keys can be divided into the following main types: radio frequency identification (RFID) keys, Bluetooth keys, infrared remote control keys, ultra-wideband (UWB) keys, etc. Among the above types of wireless keys, Bluetooth keys, infrared remote control keys, and UWB keys require the key itself to have a power module, which is powered by a battery or other energy storage module to achieve the wireless communication function of the wireless key. Once the energy storage module is out of power, the wireless key may not be used directly. Although radio frequency identification (RFID) keys do not require power supply, they must be close to the preset radio frequency identification unit near the door lock to open the door, which is less convenient. Summary of the invention

[0004] The present application provides a remote sensing key, which improves the reliability of the remote sensing key.

[0005] On the one hand, a remote sensing key is provided, the remote sensing key comprising a wireless charging module, a power supply module and a wireless communication module;

[0006] The voltage output end of the wireless charging module is connected to the voltage input end of the power supply module; the voltage output end of the power supply module is connected to the voltage input end of the wireless communication module;

[0007] The wireless communication module is provided with a transmitting antenna to transmit a key wireless signal;

[0008] The remote sensing key is suitable for being arranged at a target position of a mobile terminal; a reverse charging module is also arranged at the target position of the mobile terminal; when the reverse charging function of the mobile terminal is turned on, the remote sensing key enters a working state.

[0009] The remote sensing key provided in the embodiment of the present invention obtains power from the mobile terminal through the wireless charging module without the need to replace the battery or charge it separately. In addition, the remote sensing key is integrated into a mobile terminal, such as a smart phone or a smart watch, so that the user can carry one device to realize the identity authentication or control operation of the remote sensing key. At the same time, the remote sensing key is managed and configured through the APP of the mobile terminal, which also improves the intelligence level of the overall system.

[0010] In a possible implementation, the wireless charging module includes a wireless charging coil and a wireless power receiving chip; the first node of the wireless charging coil is connected to the first pin of the wireless power receiving chip; the second node of the wireless charging coil is connected to the second pin of the wireless power receiving chip; and the output pin of the wireless power receiving chip is connected to the voltage input end of the power supply module.

[0011] The remote sensing key provided by the embodiment of the present invention not only simplifies the circuit structure by directly connecting the wireless charging coil with the wireless power receiving chip, but also makes it easier to integrate the wireless charging module into the compact space of the remote sensing key.

[0012] In a possible implementation, the power supply module is an LDO power supply module.

[0013] The remote sensing key provided in the embodiment of the present invention uses an LDO power module to provide a stable output voltage while having a low static current consumption, which helps to extend the battery life of the mobile terminal.

[0014] In a possible implementation, the LDO power module includes a power chip; a power supply pin of the power chip is connected to an output pin of the wireless power receiving chip; and the output pin of the power chip is connected to a voltage input terminal of the wireless communication module.

[0015] In the remote sensing key provided by the embodiment of the present invention, the wireless power receiving chip receives the electric energy, and the power chip then stably outputs the electric energy to the wireless communication module, thereby improving the energy utilization efficiency of the entire remote sensing key and helping to ensure the stability and reliability of the wireless communication module.

[0016] In a possible implementation, the wireless communication module includes a key pairing pin; the key pairing pin is connected to an output pin of the power chip through a pairing switch.

[0017] The remote sensing key provided in the embodiment of the present invention can enable or disable the pairing function of the wireless communication module when needed through the pairing switch, thereby avoiding unnecessary pairing attempts and improving the security of the entire remote sensing key system.

[0018] In a possible implementation manner, the wireless communication module further includes a voltage output pin; and the voltage output pin is grounded through a light emitting diode.

[0019] The remote sensing key provided in the embodiment of the present invention is used to display the working status of the wireless communication module by setting a light emitting diode as a status indicator light.

[0020] In a possible implementation, when the voltage at the voltage input terminal of the wireless communication module is at a high level, the voltage output pin outputs a high level to turn on the light emitting diode.

[0021] The remote sensing key provided in the embodiment of the present invention sets a light emitting diode LED light as a status indicator light to display the working status of the wireless communication module. When the wireless communication module is in pairing mode and has been paired successfully, the LED lights up to intuitively convey the current working status to the user, and also facilitates the user to discover faults in time.

[0022] On the other hand, a method for using a remote sensing key is provided, the method comprising:

[0023] When a designated operation on the mobile terminal is received, the reverse charging function of the mobile terminal is turned on to put the remote sensing key in a working state.

[0024] The method for using the remote sensing key provided in an embodiment of the present invention is that when the user needs to use the remote sensing key, the user can turn on the wireless reverse charging function of the mobile terminal. At this time, the wireless charging module in the remote sensing key will respond to this function to generate a corresponding voltage. After the power supply module receives the voltage output by the wireless charging module, it will stabilize the voltage and provide it to the wireless communication module, thereby sending a signal corresponding to the remote sensing key through the wireless communication module to implement the corresponding unlocking operation, and the remote sensing key enters a working state.

[0025] In a possible implementation, the method further includes:

[0026] When the remote sensing key is in working state, the touch switch in the remote sensing key is touched to make the wireless communication module enter the pairing state.

[0027] The remote sensing key usage method provided in the embodiment of the present invention can enable or disable the pairing function of the wireless communication module when needed by setting a pairing switch and touching the touch switch in the remote sensing key, thereby avoiding unnecessary pairing attempts and improving the security of the entire remote sensing key system.

[0028] In a possible implementation, the method further includes:

[0029] When the reverse charging function of the mobile terminal is turned on, the working state of the wireless charging module of the remote sensing key is detected by the mobile terminal;

[0030] When it is detected that the working state of the wireless charging module of the remote sensing key is abnormal, the abnormal information is displayed on the interface of the mobile terminal.

[0031] The remote sensing key usage method provided in the embodiment of the present invention helps to timely discover and solve potential hardware problems and improve user experience by monitoring the working status of the wireless charging module in real time and notifying the user in time when an abnormality is found.

[0032] The technical solution provided by this application may have the following beneficial effects:

[0033] The present application provides a remote sensing key, which includes a wireless charging module, a power supply module and a wireless communication module; the voltage output end of the wireless charging module is connected to the voltage input end of the power supply module; the voltage output end of the power supply module is connected to the voltage input end of the wireless communication module; a transmitting antenna is arranged on the wireless communication module to transmit a key wireless signal; the remote sensing key is suitable for being arranged at a target position of a mobile terminal; a reverse charging module is also arranged at the target position of the mobile terminal; when the mobile terminal turns on the reverse charging function, the remote sensing key enters a working state. In the above scheme, when a user needs to use the remote sensing key, the wireless reverse charging function of the mobile terminal can be turned on. At this time, the wireless charging module in the remote sensing key will generate a corresponding voltage in response to the function. After receiving the voltage output by the wireless charging module, the power supply module stabilizes it and provides it to the wireless communication module, thereby sending a signal corresponding to the remote sensing key through the wireless communication module to realize the corresponding unlocking operation. Without using the power supply of the key itself, the remote wireless unlocking operation can be realized at any time, thereby improving the reliability of the remote sensing key. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 is a schematic structural diagram of a remote sensing key according to an exemplary embodiment;

[0036] Figure 2 is a schematic structural diagram of another remote sensing key according to an exemplary embodiment;

[0037] Figure 3 is a circuit structure diagram of a wireless charging module and an LDO power module according to an exemplary embodiment;

[0038] Figure 4 is a schematic diagram of a circuit structure of a Bluetooth chip according to an exemplary embodiment;

[0039] Figure 5 is a method flow chart showing a method for using a remote sensing key according to an exemplary embodiment;

[0040] Figure 6 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0042] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0043] A wireless key refers to a device or system that uses wireless communication technology to achieve identity authentication or control functions. It is widely used in automobiles, smart homes, access control management and other fields.

[0044] To meet the application requirements in different scenarios, there are many types of wireless keys, including radio frequency identification (RFID) keys, Bluetooth keys, infrared remote control keys, ultra-wideband (UWB) keys, etc. Specifically, Bluetooth keys, infrared remote control keys and ultra-wideband (UWB) keys are powered by built-in power modules and rely on energy storage modules such as batteries to ensure the continuous stability of wireless communication functions and achieve long-distance identity authentication or control operations. This undoubtedly improves the user experience. However, this power supply method also brings a potential problem: once the energy storage module is exhausted, the wireless key will lose its proper function, leaving the user in an embarrassing situation of being unable to open the door.

[0045] Although a radio frequency identification (RFID) key does not require power supply, it must be placed close to a preset radio frequency identification unit near the door lock to open the door, which is less convenient.

[0046] Therefore, in practical applications, there is no solution that can simultaneously overcome the power and distance difficulties of wireless keys. Based on this, the inventors have discovered that a remote sensing key can be designed to achieve remote wireless unlocking operations without using the key's own power supply, thereby improving the reliability of the remote sensing key and overcoming the above-mentioned defects of wireless keys in traditional technologies.

[0047] Figure 1 FIG. 1 is a schematic diagram showing the structure of a remote sensing key according to an exemplary embodiment. Figure 1 As shown, the remote sensing key includes a wireless charging module, a power supply module and a wireless communication module;

[0048] The voltage output end of the wireless charging module is connected to the voltage input end of the power supply module; the voltage output end of the power supply module is connected to the voltage input end of the wireless communication module;

[0049] The wireless communication module is provided with a transmitting antenna to transmit a key wireless signal;

[0050] The remote sensing key is suitable for being arranged at a target position of a mobile terminal; a reverse charging module is also arranged at the target position of the mobile terminal; when the reverse charging function of the mobile terminal is turned on, the remote sensing key enters a working state.

[0051] Optionally, in an embodiment of the present application, the wireless communication module may be a Bluetooth chip, for example, a Bluetooth chip of model N32WB03x may be used.

[0052] Please refer to Figure 2 , which shows a schematic diagram of the structure of a remote sensing key involved in an embodiment of the present application. Figure 2 As shown, the wireless communication module includes a key pairing pin; the key pairing pin is connected to the output pin of the power chip through a pairing switch.

[0053] The pairing switch can be a touch switch. When the user triggers the pairing switch by a touch operation, the remote sensing key can enter the pairing state, so as to pair with other door lock devices with Bluetooth function, thereby realizing pairing or switching devices when the remote sensing key is used for the first time.

[0054] like Figure 2 As shown, the wireless communication module also includes a voltage output pin; the voltage output pin is grounded through a light emitting diode.

[0055] Furthermore, when the voltage at the voltage input end of the wireless communication module is at a high level, when the voltage input end of the wireless communication module receives a high level signal, the voltage output pin also outputs a high level to turn on the light-emitting diode. The light-emitting diode serves as a status indicator to display the working status of the wireless communication module. When the wireless communication module is in pairing mode and has been paired successfully, the LED lights up to intuitively convey the current working status to the user. In addition, this design also provides convenience for users to discover faults in a timely manner. Once the LED fails to light up normally, the user can quickly perceive and take corresponding solutions, thereby effectively improving the user experience.

[0056] Please refer to Figure 3 , which shows a circuit structure diagram of a wireless charging module and an LDO power module involved in an embodiment of the present application. Figure 3 As shown, the wireless charging module includes a wireless charging coil and a wireless power receiving chip; the first node (i.e., P1) of the wireless charging coil is connected to the first pin (i.e., COM1) of the wireless power receiving chip; the second node (i.e., P2) of the wireless charging coil is connected to the second pin (i.e., COM2) of the wireless power receiving chip; the output pin of the wireless power receiving chip (i.e., the VOUT pin of the wireless power receiving chip) is connected to the voltage input end of the power supply module.

[0057] Optionally, the wireless power receiving chip may be a NU1680 / NU1680C model chip.

[0058] like Figure 3 As shown, the power supply module in the embodiment of the present application can be an LDO power supply module, which includes a power supply chip; the power supply pin of the power supply chip (i.e., the VIN pin in the power supply chip) is connected to the output pin of the wireless power receiving chip (i.e., the VOUT pin in the power supply chip); the output pin of the power supply chip is connected to the voltage input terminal of the wireless communication module.

[0059] Optionally, the power chip may be a ZM95XX_DFN1X1 chip.

[0060] Please refer to Figure 4 , which shows a circuit structure diagram of a Bluetooth chip involved in the embodiment of the present application. Figure 4 As shown, the model of the Bluetooth chip is N32WB03x. Optionally, the PB1 and PB2 pins in the Bluetooth chip can be used as voltage output pins. When these two pins output high-level signals, the light-emitting diodes (including Figure 4 The LED_BLUE and LED_RED in the circuit will respond and light up immediately.

[0061] Optionally, the PA1 pin of the Bluetooth chip is a key pairing pin, and when the user triggers the touch button K1, the Bluetooth chip enters pairing mode.

[0062] In summary, the present application provides a remote sensing key, which includes a wireless charging module, a power supply module and a wireless communication module; the voltage output end of the wireless charging module is connected to the voltage input end of the power supply module; the voltage output end of the power supply module is connected to the voltage input end of the wireless communication module; a transmitting antenna is arranged on the wireless communication module to transmit a key wireless signal; the remote sensing key is suitable for being arranged at a target position of a mobile terminal; a reverse charging module is also arranged at the target position of the mobile terminal; when the mobile terminal turns on the reverse charging function, the remote sensing key enters a working state. In the above scheme, when the user needs to use the remote sensing key, the wireless reverse charging function of the mobile terminal can be turned on. At this time, the wireless charging module in the remote sensing key will generate a corresponding voltage in response to the function. After receiving the voltage output by the wireless charging module, the power supply module stabilizes it and provides it to the wireless communication module, thereby sending a signal corresponding to the remote sensing key through the wireless communication module to realize the corresponding unlocking operation. Without using the power supply of the key itself, the remote wireless unlocking operation can be realized at any time, thereby improving the reliability of the remote sensing key.

[0063] Figure 5 is a method flow chart showing a method for using a remote sensing key according to an exemplary embodiment. The remote sensing key may be as follows Figure 1 The remote sensing key in the embodiment shown, such as Figure 5 As shown, the method includes:

[0064] Step 501, when a designated operation on a mobile terminal is received, a reverse charging function of the mobile terminal is turned on to put the remote sensing key in a working state.

[0065] When the remote sensing key is required to be in working state, the user needs to operate the mobile terminal to turn on the reverse charging function. At this time, the remote sensing key enters the working state and can transmit a wireless unlocking signal. The on-demand power supply through the mobile terminal avoids the failure problem of traditional keys due to insufficient power, and there is no need to operate the key itself additionally, and the unlocking function can be realized only through the mobile terminal control.

[0066] Step 502: When the reverse charging function of the mobile terminal is turned off, the remote sensing key exits the working state.

[0067] In the embodiment of the present application, the remote sensing key only supplies power when needed and stops running after the reverse charging is turned off, thereby avoiding unnecessary consumption of power by the remote sensing key during standby.

[0068] Optionally, in an embodiment of the present application, when the remote sensing key is in a working state, a touch switch in the remote sensing key is touched to put the wireless communication module into a pairing state.

[0069] When the wireless communication module enters the pairing state, it can establish a one-to-one secure connection with the smart lock, vehicle system, etc. In other words, the remote sensing key involved in the embodiment of the present application not only has the traditional unlocking function, but also provides a convenient pairing function when using for the first time or switching devices, bringing users a more flexible and personalized use experience.

[0070] Optionally, in order to further improve the convenience and safety of use, the embodiment of the present application is also designed with an intelligent detection function. When the reverse charging function of the mobile terminal is turned on, the working status of the wireless charging module of the remote sensing key is detected by the mobile terminal.

[0071] When it is detected that the working state of the wireless charging module of the remote sensing key is abnormal, abnormal information is displayed on the interface of the mobile terminal to remind the user to perform corresponding processing.

[0072] In an embodiment of the present application, in addition to turning on the reverse charging function, the mobile terminal may also be provided with software for detecting the power consumption of its reverse charging module. That is to say, when the mobile terminal turns on the reverse charging function, it will also monitor the power consumption of the reverse charging function of the mobile terminal in real time, so as to know whether the wireless charging module of the remote sensing key is working normally; if the power consumption of the reverse charging function of the mobile terminal is significantly smaller, it means that the wireless charging module of the remote sensing key has not obtained enough energy from the reverse charging function of the mobile terminal, and the remote sensing key cannot work normally. At this time, the mobile terminal can display its abnormal information on the interface.

[0073] Furthermore, the mobile terminal is not used to open the remote sensing key by default after the reverse charging function is turned on. Instead, it is only when the remote sensing key is attached to the reverse charging function area of ​​the mobile terminal that the remote sensing key function is judged to be abnormal. Specifically, when the user turns on the reverse charging function, a selection control appears on the interface of the mobile terminal to intuitively prompt the user to confirm whether the reverse charging function is used to power the remote sensing key at this time; only when the user actively triggers the selection control, it means that the user has confirmed that the reverse charging function of the mobile terminal is used to power the remote sensing key to activate the remote sensing key, and the mobile terminal will detect the power consumption of the wireless charging module of the remote sensing key. This design not only avoids the trouble caused by misoperation, but also further improves the convenience and safety of use.

[0074] In summary, the present application provides a remote sensing key, which includes a wireless charging module, a power supply module and a wireless communication module; the voltage output end of the wireless charging module is connected to the voltage input end of the power supply module; the voltage output end of the power supply module is connected to the voltage input end of the wireless communication module; a transmitting antenna is arranged on the wireless communication module to transmit a key wireless signal; the remote sensing key is suitable for being arranged at a target position of a mobile terminal; a reverse charging module is also arranged at the target position of the mobile terminal; when the mobile terminal turns on the reverse charging function, the remote sensing key enters a working state. In the above scheme, when the user needs to use the remote sensing key, the wireless reverse charging function of the mobile terminal can be turned on. At this time, the wireless charging module in the remote sensing key will generate a corresponding voltage in response to the function. After receiving the voltage output by the wireless charging module, the power supply module stabilizes it and provides it to the wireless communication module, thereby sending a signal corresponding to the remote sensing key through the wireless communication module to realize the corresponding unlocking operation. Without using the power supply of the key itself, the remote wireless unlocking operation can be realized at any time, thereby improving the reliability of the remote sensing key.

[0075] An embodiment of the present invention further provides a computer device, which can be implemented as the above-mentioned mobile terminal.

[0076] See also Figure 6 , Figure 6 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 6 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the computer device, including instructions stored in or on the memory to display graphic information in a graphical user interface on an external input / output device (such as a display device coupled to an interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 6 A processor 10 is taken as an example.

[0077] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0078] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0079] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0080] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0081] The computer device further comprises a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0082] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0083] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0084] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

[0085] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0086] It will be appreciated that the present application is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

Claims

1. A remote sensing key, characterized in that: The remote sensing key includes a wireless charging module, a power supply module and a wireless communication module; The voltage output end of the wireless charging module is connected to the voltage input end of the power supply module; the voltage output end of the power supply module is connected to the voltage input end of the wireless communication module; The wireless communication module is provided with a transmitting antenna to transmit a key wireless signal; The remote sensing key is suitable for being arranged at a target position of the mobile terminal; a reverse charging module is also arranged at the target position of the mobile terminal; When the mobile terminal turns on the reverse charging function, the remote sensing key enters a working state.

2. The remote sensing key according to claim 1, characterized in that: The wireless charging module includes a wireless charging coil and a wireless power receiving chip; the first node of the wireless charging coil is connected to the first pin of the wireless power receiving chip; the second node of the wireless charging coil is connected to the second pin of the wireless power receiving chip; the output pin of the wireless power receiving chip is connected to the voltage input end of the power supply module.

3. The remote sensing key according to claim 2, characterized in that: The power supply module is an LDO power supply module.

4. The remote sensing key according to claim 3, characterized in that: The LDO power module includes a power chip; the power supply pin of the power chip is connected to the output pin of the wireless power receiving chip; the output pin of the power chip is connected to the voltage input end of the wireless communication module.

5. The remote sensing key according to claim 4, characterized in that: The wireless communication module includes a key pairing pin; the key pairing pin is connected to the output pin of the power chip through a pairing switch.

6. The remote sensing key according to any one of claims 1 to 4, characterized in that: The wireless communication module also includes a voltage output pin; the voltage output pin is grounded through a light emitting diode.

7. The remote sensing key according to claim 6, characterized in that: When the voltage at the voltage input terminal of the wireless communication module is at a high level, the voltage output pin outputs a high level to turn on the light emitting diode.

8. A method for using a remote sensing key, characterized in that: The method is applied to the remote sensing key according to any one of claims 1 to 7; the method comprises: When a designated operation on the mobile terminal is received, the reverse charging function of the mobile terminal is turned on to put the remote sensing key in a working state.

9. The method according to claim 8, characterized in that The method further comprises: When the remote sensing key is in working state, the touch switch in the remote sensing key is touched to make the wireless communication module enter the pairing state.

10. The method according to claim 8, characterized in that The method further comprises: When the reverse charging function of the mobile terminal is turned on, the working state of the wireless charging module of the remote sensing key is detected by the mobile terminal; When it is detected that the working state of the wireless charging module of the remote sensing key is abnormal, the abnormal information is displayed on the interface of the mobile terminal.

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