Button control circuit and storage device supporting find my location function

Abstract

This utility model relates to the field of storage device technology, and more particularly to a button control circuit and storage device supporting FindMy positioning function. The button control circuit includes: a fingerprint unlocking module, a positioning module, and a button; the positioning module is connected to both the fingerprint unlocking module and the button; the button, when triggered by a user, transmits a generated shutdown signal to the positioning module; the positioning module, upon receiving the shutdown signal but not receiving a user authentication signal generated by the fingerprint unlocking module, keeps the positioning function enabled; wherein, the user authentication signal is generated by the fingerprint unlocking module when the collected current fingerprint signal of the user matches a preset fingerprint signal. Compared to existing methods, this utility model prevents the storage device's positioning function from being maliciously disabled through a combination of fingerprint unlocking and button shutdown.

Description

Technical Field

[0001] This utility model relates to the field of storage device technology, and in particular to a button control circuit and storage device that supports the FindMy positioning function. Background Technology

[0002] In existing storage devices (such as USB flash drives), to help users recover lost devices, a location module is usually installed for FindMy positioning. Users can then locate the current position of the storage device based on this information. To facilitate enabling or disabling the positioning function, a button is typically included on the storage device to directly turn the positioning feature on or off.

[0003] The existing storage device location function can be directly turned on or off via a button. Therefore, if a storage device is found by someone else, the finder can easily disable the location function by pressing the button. This makes it easy for the location function to be maliciously disabled, preventing the original user from tracking the storage device's location and increasing the difficulty of recovering it after it is lost. Therefore, how to prevent the malicious disabling of the storage device's location function is a pressing technical problem that needs to be solved. Utility Model Content

[0004] The main purpose of this utility model is to provide a button control circuit and storage device that supports the FindMy positioning function, aiming to solve the existing technical problem that users cannot prevent the positioning function of the storage device from being maliciously turned off.

[0005] To achieve the above objectives, this utility model proposes a button control circuit that supports the FindMy positioning function. The button control circuit includes: a fingerprint unlocking module, a positioning module, and a button.

[0006] The positioning module is connected to both the fingerprint unlocking module and the button.

[0007] The button is used to transmit a generated shutdown signal to the positioning module when triggered by the user;

[0008] The positioning module is used to keep the positioning function enabled when it receives the shutdown signal and when it does not receive the user authentication signal generated by the fingerprint unlocking module.

[0009] The user authentication signal is generated by the fingerprint unlocking module when the current fingerprint signal of the user is the same as the preset fingerprint signal.

[0010] In one embodiment, the fingerprint unlocking module is used to transmit the generated user authentication signal to the positioning module when the collected current fingerprint signal is the same as the preset fingerprint signal;

[0011] The positioning module is also used to disable the positioning function when it receives the shutdown signal and the user authentication signal.

[0012] In one embodiment, the fingerprint unlocking module includes: a fingerprint acquisition unit, a fingerprint storage unit, and a fingerprint unlocking unit;

[0013] The fingerprint unlocking unit is connected to the fingerprint acquisition unit, the fingerprint storage unit, and the positioning module, respectively;

[0014] The fingerprint acquisition unit is used to acquire the user's current fingerprint signal and transmit the current fingerprint signal to the fingerprint unlocking unit;

[0015] The fingerprint unlocking unit is used to transmit the generated user authentication signal to the positioning module when the current fingerprint signal is the same as the preset fingerprint signal pre-stored in the fingerprint storage unit.

[0016] In one embodiment, the fingerprint acquisition unit includes: a fingerprint acquisition chip and a first capacitor to a fourth capacitor;

[0017] The first power supply terminal of the fingerprint acquisition chip is connected to the second terminal of the first capacitor. The second power supply terminal of the fingerprint acquisition chip is connected to the first terminal of the second capacitor and the chip power supply. The third power supply terminal of the fingerprint acquisition chip is connected to the first terminal of the third capacitor and the chip power supply. The first acquisition terminal of the fingerprint acquisition chip is connected to the first terminal of the fourth capacitor. The second acquisition terminal of the fingerprint acquisition chip is connected to the second terminal of the fourth capacitor. The recognition terminal of the fingerprint acquisition chip is connected to the chip power supply. The first communication terminal, the second communication terminal, the clock terminal, the chip select terminal, the interrupt terminal, and the reset terminal of the fingerprint acquisition chip are all connected to the fingerprint unlocking unit. The first ground terminal of the fingerprint acquisition chip is connected to the second terminal of the second capacitor. The first ground terminal, the second ground terminal, the first open selection terminal, the fifth open selection terminal, the sixth open selection terminal, the eighth open selection terminal, and the test terminal of the fingerprint acquisition chip are all grounded.

[0018] The first terminal of the first capacitor is grounded, the first terminal of the second capacitor is connected to the chip power supply, and the second terminal of the third capacitor is grounded.

[0019] In one embodiment, the fingerprint storage unit includes: a fingerprint storage chip, a first resistor, a second resistor, and a fifth capacitor;

[0020] The chip select terminal, the first communication terminal, the second communication terminal, and the clock terminal of the fingerprint storage chip are all connected to the fingerprint unlocking unit. The protection terminal of the fingerprint storage chip is connected to the second terminal of the first resistor. The holding terminal of the fingerprint storage chip is connected to the second terminal of the second resistor. The power supply terminal of the fingerprint storage chip is connected to the first terminal of the fifth capacitor and the chip power supply, respectively. The first ground terminal and the second ground terminal of the fingerprint storage chip are both grounded. The first terminal of the first resistor and the first terminal of the second resistor are both connected to the chip power supply. The second terminal of the first capacitor is grounded.

[0021] In one embodiment, the fingerprint unlocking unit includes: a fingerprint unlocking chip, a diode, a third resistor, a fourth resistor, and a sixth to eleventh capacitor;

[0022] The analog-to-digital power supply terminal of the fingerprint unlocking chip is connected to the first power supply terminal of the fingerprint unlocking chip, the first terminal of the sixth capacitor, and the chip power supply, respectively. The second power supply terminal of the fingerprint unlocking chip is connected to the first terminal of the diode, the first terminal of the seventh capacitor, the first terminal of the eighth capacitor, and the chip power supply, respectively. The third power supply terminal of the fingerprint unlocking chip is connected to the first terminal of the ninth capacitor. The positioning output terminal of the fingerprint unlocking chip is connected to the positioning module. The memory chip select terminal of the fingerprint unlocking chip is connected to the fingerprint storage unit. The USB power input terminal of the fingerprint unlocking chip is connected to the first terminal of the tenth capacitor and the chip power supply, respectively. The power output terminal B is connected to the first terminal of the eleventh capacitor; the acquisition clock terminal of the fingerprint unlocking chip is connected to the first terminal of the third resistor; the first acquisition communication terminal of the fingerprint unlocking chip is connected to the fingerprint acquisition unit; the acquisition chip select terminal of the fingerprint unlocking chip is connected to the first terminal of the fourth resistor and the fingerprint acquisition unit respectively; the second acquisition communication terminal of the fingerprint unlocking chip is connected to the fingerprint acquisition unit; the storage clock terminal of the fingerprint unlocking chip is connected to the fingerprint storage unit; both the first and second storage communication terminals of the fingerprint unlocking chip are connected to the fingerprint storage unit; and the ground terminal of the fingerprint unlocking chip is grounded.

[0023] The second terminal of the sixth capacitor is grounded. The second terminal of the diode is connected to the second terminals of the seventh capacitor, the eighth capacitor, and the ninth capacitor, respectively. The second terminal of the diode is grounded. The second terminal of the tenth capacitor is grounded. The second terminal of the eleventh capacitor is grounded. The second terminal of the third resistor is connected to the fingerprint acquisition module. The second terminal of the fourth resistor is connected to the chip power supply.

[0024] In one embodiment, the positioning module includes: a Bluetooth unit and a positioning unit;

[0025] The Bluetooth unit is connected to the fingerprint unlocking module, the button, and the positioning unit, respectively.

[0026] The Bluetooth unit is used to continuously transmit a location activation signal to the location unit when it receives the shutdown signal and when it does not receive the user authentication signal generated by the fingerprint unlocking module.

[0027] The positioning unit is used to keep the positioning function enabled when it continuously receives the positioning enable signal.

[0028] In one embodiment, the Bluetooth unit includes: a Bluetooth chip, an antenna, a crystal oscillator, a first inductor, a second inductor, a fifth to a ninth resistor, and a twelfth to a twenty-seventh capacitor;

[0029] The button input terminal of the Bluetooth chip is connected to the second terminal of the fifth resistor; the first communication terminal of the Bluetooth chip is connected to the second terminal of the sixth resistor; the fingerprint input terminal of the Bluetooth chip is connected to the fingerprint unlocking module; the digital power terminal of the Bluetooth chip is grounded; the first power terminal of the Bluetooth chip is connected to the second terminal of the twelfth capacitor; the second power terminal of the Bluetooth chip is connected to the second terminal of the seventh resistor and the first terminal of the thirteenth capacitor, respectively; the third power terminal of the Bluetooth chip is connected to the first terminal of the first inductor; the fourth power terminal of the Bluetooth chip is connected to the second terminal of the first inductor; and the fifth power terminal of the Bluetooth chip is connected to the first terminals of the fourteenth capacitor, the fifteenth capacitor, and the eighth resistor, respectively. The sixth power supply terminal of the Bluetooth chip is connected to the first terminal of the sixteenth capacitor. The seventh power supply terminal of the Bluetooth chip is connected to the first terminal of the seventeenth capacitor and the power supply. The first crystal oscillator terminal of the Bluetooth chip is connected to the first terminal of the crystal oscillator. The second crystal oscillator terminal of the Bluetooth chip is connected to the second terminal of the crystal oscillator. The reset terminal of the Bluetooth chip is connected to the first terminal of the eighteenth capacitor. The antenna terminal of the Bluetooth chip is connected to the first terminal of the nineteenth capacitor. The eighth power supply terminal of the Bluetooth chip is connected to the second terminal of the twentieth capacitor, the second terminal of the twenty-first capacitor, and the second terminal of the ninth resistor. The first positioning communication terminal and the second positioning communication terminal of the Bluetooth chip are both connected to the positioning unit. The ground terminal of the Bluetooth chip is grounded.

[0030] The first end of the fifth resistor is connected to the button, the first end of the sixth resistor is connected to the power supply, the first end of the twelfth capacitor is grounded, the first end of the seventh resistor is connected to the power supply, the second ends of the thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, and eighteenth capacitors are all grounded, the first ends of the twentieth and twenty-first capacitors are grounded, the second end of the nineteenth capacitor is connected to the second end of the twenty-second capacitor and the first end of the second inductor, the second end of the second inductor is connected to the second ends of the twenty-third, twenty-fourth, and twenty-fifth capacitors, the second end of the twenty-fifth capacitor is connected to the second end of the twenty-sixth capacitor and the antenna, the second end of the twenty-seventh capacitor is connected to the antenna, and the first ends of the twenty-second, twenty-third, twenty-fourth, twenty-sixth, and twenty-seventh capacitors are all grounded.

[0031] In one embodiment, the positioning unit includes: a positioning chip, a tenth resistor, an eleventh resistor, a twenty-eighth capacitor, and a twenty-ninth capacitor;

[0032] The serial input terminal of the positioning chip is grounded; the clock terminal of the positioning chip is connected to the second terminal of the tenth resistor; the first power supply terminal of the positioning chip is connected to the power supply and the first terminal of the twenty-eighth capacitor; the first unselected terminal of the positioning chip is grounded; the first and second interrupt terminals of the positioning chip are both connected to the Bluetooth unit; the second power supply terminal of the positioning chip is connected to the power supply and the first terminal of the twenty-ninth capacitor; the digital terminal and the ground terminal of the positioning chip are both grounded; the second unselected terminal of the positioning chip is connected to the first terminal of the tenth resistor, the first terminal of the eleventh resistor, and the power supply; and the alternative terminal of the positioning chip is connected to the second terminal of the eleventh resistor.

[0033] The second terminal of the 28th capacitor and the second terminal of the 29th capacitor are both grounded.

[0034] In addition, to achieve the above objectives, this utility model also proposes a storage device, which includes a button control circuit as described above that supports the FindMy positioning function.

[0035] This utility model proposes a button control circuit and storage device supporting FindMy positioning function. The button control circuit includes: a fingerprint unlocking module, a positioning module, and a button; the positioning module is connected to both the fingerprint unlocking module and the button; the button is used to transmit a generated shutdown signal to the positioning module when triggered by a user; the positioning module is used to keep the positioning function enabled when it receives the shutdown signal and does not receive a user authentication signal generated by the fingerprint unlocking module; wherein, the user authentication signal is a signal generated by the fingerprint unlocking module when the current fingerprint signal of the user is collected is the same as a preset fingerprint signal.

[0036] Because this invention incorporates a button control circuit within the storage device, when the button is triggered by the user, it transmits a shutdown signal to the positioning module. If the positioning module only receives the shutdown signal and not the user authentication signal generated by the fingerprint unlocking module, it will maintain the positioning function. The user authentication signal is generated by the fingerprint unlocking module when the user's current fingerprint matches a preset fingerprint signal. Compared to existing methods that directly enable or disable the storage device's positioning function via a button, where the finder can easily disable the positioning function by pressing a button, this invention prevents the storage device's positioning function from being maliciously disabled through a combination of fingerprint unlocking and button shutdown. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the first embodiment of the button control circuit proposed in this utility model.

[0039] Figure 2 This is a circuit diagram of the fingerprint acquisition unit in the second embodiment of the button control circuit proposed in this utility model.

[0040] Figure 3 The circuit diagram of the fingerprint storage unit in the second embodiment of the button control circuit proposed in this utility model embodiment;

[0041] Figure 4 The circuit diagram of the fingerprint unlocking unit in the second embodiment of the button control circuit proposed in this utility model embodiment;

[0042] Figure 5 The circuit diagram of the Bluetooth unit in the third embodiment of the button control circuit proposed in this utility model embodiment;

[0043] Figure 6 The circuit diagram of the positioning unit in the third embodiment of the button control circuit proposed in this utility model is shown.

[0044] Explanation of icon numbers:

[0045] label name label name 1 Fingerprint unlock module Y Crystal Oscillator 11 fingerprint acquisition unit L1~L2 First inductor to second inductor 12 Fingerprint storage unit R1~R11 First resistor to eleventh resistor 13 Fingerprint unlocking unit C1~C29 Capacitors 1 to 29 2 Positioning module U1 fingerprint chip 21 Bluetooth unit U2 fingerprint storage chip 22 Positioning unit U3 fingerprint unlocking chip 3 Button U4 Bluetooth chip D diode U5 Positioning chip

[0046] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0047] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0050] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, the user should consider such a combination of technical solutions to be non-existent and not within the scope of protection claimed by this utility model.

[0051] It should be noted that in existing storage devices (such as USB flash drives), to enable users to retrieve the device if it is accidentally lost, a location module is usually installed within the storage device for FindMy positioning. Users can then locate the current position of the storage device based on this information. Furthermore, to facilitate enabling or disabling the positioning function, a button is typically included on the storage device to directly toggle the positioning feature on or off.

[0052] The existing storage device location function can be directly turned on or off via a button. Therefore, if a storage device is found by someone else, the finder can easily disable the location function by pressing the button. This makes it easy for the location function to be maliciously disabled, preventing the original user from tracking the storage device's location and increasing the difficulty of recovering it after it is lost. Therefore, how to prevent the malicious disabling of the storage device's location function is a pressing technical problem that needs to be solved.

[0053] To address the aforementioned technical issues, this embodiment provides a button control circuit supporting the FindMy location function. This invention includes a button control circuit within the storage device. When the button is triggered by a user, it transmits a shutdown signal to the location module. If the location module only receives the shutdown signal and not the user authentication signal generated by the fingerprint unlocking module, it will maintain the location function. The user authentication signal is generated by the fingerprint unlocking module when the user's current fingerprint signal matches a preset fingerprint signal. Compared to existing methods that directly enable or disable the storage device's location function via a button, where the finder can directly disable the location function by pressing a button, this invention prevents the storage device's location function from being maliciously disabled through a combination of fingerprint unlocking and button shutdown.

[0054] For ease of understanding, the following is combined with Figures 1 to 6 The button control circuit of the storage device provided in the embodiments of this utility model will be described in detail.

[0055] Reference Figure 1 , Figure 1 This is a schematic diagram of the first embodiment of the button control circuit proposed in this utility model.

[0056] like Figure 1 As shown, in this embodiment, the button control circuit of the storage device may include: a fingerprint unlocking module 1, a positioning module 2, and a button 3;

[0057] The aforementioned positioning module 2 is connected to the aforementioned fingerprint unlocking module 1 and the aforementioned button 3, respectively;

[0058] It should be noted that the fingerprint unlocking module 1 mentioned above can be a module that integrates fingerprint storage, fingerprint matching, and fingerprint unlocking functions. The positioning module 2 mentioned above can be any module with positioning function, such as a GPS positioning module, Bluetooth positioning module, Beidou positioning module, etc. The button 3 mentioned above can be any press-type device that generates an on / off signal (conduction signal or shutdown signal) when triggered, such as a regular button or keypad.

[0059] To prevent the storage device's location function from being disabled only when the button is triggered, such as Figure 1 As shown, in this embodiment, the button 3 is used to transmit the generated shutdown signal to the positioning module 2 when triggered by the user.

[0060] It should be noted that the aforementioned shutdown signal can be a request signal to disable the storage device's location function. It is understood that the storage device's location function has already been enabled before the shutdown signal is sent; that is, button 3 has already been triggered once before generating the shutdown signal to enable the storage device's location function.

[0061] The positioning module 2 is used to keep the positioning function enabled when it receives the shutdown signal and when it does not receive the user authentication signal generated by the fingerprint unlocking module 1.

[0062] The user authentication signal is generated by the fingerprint unlocking module 1 when the current fingerprint signal of the user is the same as the preset fingerprint signal.

[0063] It should be noted that the aforementioned current fingerprint signal can be the fingerprint signal of the user currently using the storage device, the fingerprint signal of the holder, or the fingerprint signal of a non-holder. It can be understood that the aforementioned preset fingerprint signal can be the fingerprint signal pre-stored in the storage device by the holder, or it can be understood as the fingerprint signal of the owner of the storage device.

[0064] Understandably, the aforementioned users can be either storage device owners or non-owners (i.e., pickers).

[0065] In the specific implementation, after the location function of the storage device is triggered, the location module 2 will continuously locate the storage device. When the owner of the storage device leaves it behind, it may be picked up by someone else. Since the storage device will continue to be located, if the person who picked it up wants to turn off the location function (i.e., trigger the button 3), they need to trigger not only the button 3, but also the fingerprint unlocking module 1. When the fingerprint unlocking module 1 collects a fingerprint signal that is different from the preset fingerprint signal, no user authentication signal is generated. Since the person who picked it up is not the owner of the storage device, the location module 2 fails to receive the user authentication signal generated by the fingerprint receiving module 1, so the location function remains on.

[0066] Furthermore, in order for the location function of the storage device to function properly, continue as follows Figure 1 As shown, in this embodiment, the fingerprint unlocking module 1 is used to transmit the generated user authentication signal to the positioning module 2 when the current fingerprint signal collected is the same as the preset fingerprint signal;

[0067] The positioning module 2 is also used to disable the positioning function when it receives the shutdown signal and the user authentication signal.

[0068] In the specific implementation, when the owner of the storage device finds the storage device, the location function is no longer needed. When the user triggers the button 3, the fingerprint unlocking module 1 collects the user's current fingerprint signal and it is the same as the preset fingerprint signal. Then, a user authentication signal is generated and transmitted to the location module 2. The location module 2 will receive the user authentication signal at the same time as the shutdown signal, and the location function will be turned off at this time.

[0069] Furthermore, in order to perform fingerprint unlock authentication, continue as follows Figure 1 As shown, in this embodiment, the fingerprint unlocking module 1 includes: a fingerprint acquisition unit 11, a fingerprint storage unit 12, and a fingerprint unlocking unit 13;

[0070] The fingerprint unlocking unit 13 is connected to the fingerprint acquisition unit 11, the fingerprint storage unit 12, and the positioning module 2, respectively.

[0071] It should be noted that the fingerprint acquisition unit 11 can be a unit with fingerprint acquisition function, such as a fingerprint collector, fingerprint sensor, or fingerprint acquisition chip. The fingerprint storage unit 12 can be a storage unit for storing fingerprint signals, such as a fingerprint memory or fingerprint storage chip. The fingerprint unlocking unit 13 can be a unit for comparing or matching the current fingerprint signal with a preset fingerprint signal, such as a fingerprint comparator or fingerprint unlocking chip.

[0072] The fingerprint acquisition unit 11 is used to acquire the user's current fingerprint signal and transmit the current fingerprint signal to the fingerprint unlocking unit 13;

[0073] The fingerprint unlocking unit 13 is used to transmit the generated user authentication signal to the positioning module 2 when the current fingerprint signal is the same as the preset fingerprint signal pre-stored in the fingerprint storage unit 12.

[0074] In a specific implementation, when the user has pre-stored the selected finger's fingerprint, the fingerprint storage unit 12 acquires the preset fingerprint signal. When the user has completed the work of activating the positioning function of the storage device and needs to close it, the fingerprint acquisition unit 11 is triggered at the same time as the button 3 is triggered. The user's current fingerprint is generated by the fingerprint acquisition unit 11 and transmitted to the fingerprint unlocking unit 13. The fingerprint unlocking unit 13 compares or matches the current fingerprint signal with the preset fingerprint signal. When the current fingerprint signal is the same as the preset fingerprint signal, the generated user authentication signal is transmitted to the positioning module 2.

[0075] Furthermore, in order to locate the storage device, continue as follows Figure 1 As shown, in this embodiment, the positioning module 2 includes a Bluetooth unit 21 and a positioning unit 22.

[0076] The Bluetooth unit 21 is connected to the fingerprint unlocking module 1, the button 3 and the positioning unit 22 respectively;

[0077] It should be noted that the Bluetooth unit 21 described above may be a unit that outputs a positioning enable signal or a positioning disable signal to the storage device. The positioning unit 22 described above may be a unit with positioning function, such as GPS, BeiDou, Wi-Fi, or cellular network.

[0078] The Bluetooth unit 21 is used to continuously transmit a location enable signal to the location unit when it receives the shutdown signal and when it does not receive the user authentication signal generated by the fingerprint unlocking module.

[0079] The positioning unit 22 is used to keep the positioning function enabled when it continuously receives the positioning enable signal.

[0080] It should be noted that the aforementioned location activation signal can be a signal to wake up the location function, used to enable the location function of the storage device.

[0081] In a specific implementation, if the Bluetooth unit 21 receives only the above-mentioned shutdown signal but not the above-mentioned user authentication signal at a certain moment, it can be assumed that the storage device is not held by the holder at this time, but is in the state of being picked up by someone else. Therefore, the Bluetooth unit 21 will continuously transmit the positioning enable signal to the positioning unit 22 so that the positioning unit 22 keeps the positioning function enabled.

[0082] When the Bluetooth unit 21 receives the shutdown signal and the user authentication signal, it can be assumed that the storage device is being used by the holder. Therefore, the Bluetooth unit 21 can stop outputting the positioning enable signal to the positioning unit 22, and the positioning unit 22 will turn off the positioning function.

[0083] The button control circuit in this embodiment may include a fingerprint unlocking module 1, a positioning module 2, and a button 3. When the button 3 is triggered by the user, it transmits a generated shutdown signal to the positioning module 2. If the positioning module 2 only receives the shutdown signal and does not receive the user authentication signal generated by the fingerprint unlocking module 1, it will keep the positioning function enabled. The user authentication signal is generated by the fingerprint unlocking module 1 when the collected current fingerprint signal of the user matches the preset fingerprint signal. Compared to existing methods that directly enable or disable the positioning function of the storage device via button 3, where the finder can directly disable the positioning function by pressing the button when the storage device is picked up, this invention prevents the storage device's positioning function from being maliciously disabled through a combination of fingerprint unlocking and button shutdown.

[0084] Reference Figure 2 , Figure 2 The circuit diagram of the fingerprint acquisition unit in the second embodiment of the button control circuit proposed in this utility model is shown.

[0085] Based on the above embodiments, a second embodiment of this utility model is proposed. To obtain the current fingerprint signal, such as... Figure 2 As shown, in this embodiment, the fingerprint acquisition unit 11 includes: a fingerprint acquisition chip U1 and a first capacitor C1 to a fourth capacitor C4;

[0086] The first power supply terminal of the fingerprint acquisition chip U1 is connected to the second terminal of the first capacitor C1. The second power supply terminal of the fingerprint acquisition chip U1 is connected to the first terminal of the second capacitor C2 and the chip power supply, respectively. The third power supply terminal of the fingerprint acquisition chip U1 is connected to the first terminal of the third capacitor C3 and the chip power supply, respectively. The first acquisition terminal of the fingerprint acquisition chip U1 is connected to the first terminal of the fourth capacitor C4. The second acquisition terminal of the fingerprint acquisition chip U1 is connected to the second terminal of the fourth capacitor C4. The recognition terminal of the fingerprint acquisition chip U1 is connected to the chip power supply. The first communication terminal and the second communication terminal of the fingerprint acquisition chip U1 are also connected. The fingerprint sensor U1's clock terminal, chip select terminal, interrupt terminal, and reset terminal are all connected to the fingerprint unlocking unit 13. The fingerprint sensor U1's first ground terminal is connected to the second terminal of the second capacitor C2. The fingerprint sensor U1's first ground terminal, second ground terminal, first unselect terminal, fifth unselect terminal, sixth unselect terminal, eighth unselect terminal, and test terminal are all grounded.

[0087] The first terminal of the first capacitor C1 is grounded, the first terminal of the second capacitor C2 is connected to the power supply of the chip, and the second terminal of the third capacitor C3 is grounded.

[0088] It should be noted that the fingerprint acquisition chip U1 mentioned above can be any chip used to acquire fingerprint information, such as the ICNF7332 fingerprint acquisition chip. Of course, other models can also be used, and this embodiment does not impose any restrictions on this. The power supply of the above chip (i.e. Figure 2 The 3V3 in the middle can be the power supply required for the operation of the fingerprint acquisition chip. It can be obtained by transformer, or it can be obtained by other means. This embodiment does not limit this.

[0089] In a specific implementation, the first power supply terminal of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The first pin of U1 is connected to the second terminal of the first capacitor C1, and the second power supply terminal of the fingerprint acquisition chip U1 (i.e., Figure 2 The second pin of U1 is connected to the first terminal of the second capacitor C2 and the chip power supply, respectively. The third power supply terminal of the fingerprint acquisition chip U1 (i.e. Figure 2 The twentieth pin of U1 is connected to the first terminal of the third capacitor C3 and the power supply of the aforementioned chip, respectively. The first acquisition terminal of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2The seventeenth pin of U1 is connected to the first terminal of the fourth capacitor C4, and the second acquisition terminal of the fingerprint acquisition chip U1 (i.e. Figure 2 The sixteenth pin of U1 is connected to the second terminal of the fourth capacitor C4 mentioned above.

[0090] It should be emphasized that the first and second acquisition ends of the fingerprint acquisition chip U1 are capacitive sensors used for capacitive fingerprint recognition.

[0091] The fingerprint recognition end of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 Pin 15 of U1 is connected to the power supply of the aforementioned chip, and the first communication terminal of the aforementioned fingerprint acquisition chip U1 (i.e., Figure 2 The fifth pin of U1), and the second communication terminal of the fingerprint acquisition chip U1 mentioned above (i.e. Figure 2 The sixth pin of U1), and the clock terminal of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The fourth pin of U1), and the chip select pin of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The seventh pin of U1), and the interrupt terminal of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The eighth pin of U1) and the reset pin of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The ninth pin of U1 is connected to the fingerprint unlocking unit 13 mentioned above.

[0092] It should be emphasized that the fingerprint acquisition chip U1 transmits the current fingerprint signal to the fingerprint unlocking unit 13 through the first communication terminal and the second communication terminal of the fingerprint acquisition chip U1.

[0093] The first ground terminal of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The third pin of U1 is connected to the second terminal of the second capacitor C2, and the first ground terminal and the second ground terminal of the fingerprint acquisition chip U1 are connected to each other. Figure 2 Pin 26 of U1), the first unselected pin of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The tenth pin of U1), and the fifth open-ended pin of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 Pin 22 of U1), the sixth open selection pin of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 Pin 23 of U1), the eighth open selection pin of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 Pin 25 of U1 and the test terminal of the aforementioned fingerprint acquisition chip U1 (i.e. Figure 2 The twelfth pin of U1 is grounded.

[0094] The first terminal of the first capacitor C1 is grounded, the first terminal of the second capacitor C2 is connected to the power supply of the chip, and the second terminal of the third capacitor C3 is grounded.

[0095] Furthermore, in order to store the user's preset fingerprint signal, such as Figure 3 As shown, Figure 3 This is a circuit diagram of the fingerprint storage unit in the second embodiment of the button control circuit proposed in this utility model. In this embodiment, the fingerprint storage unit 12 includes: a fingerprint storage chip U2, a first resistor R1, a second resistor R2, and a fifth capacitor C5;

[0096] The chip select terminal, the first communication terminal, the second communication terminal, and the clock terminal of the fingerprint storage chip U2 are all connected to the fingerprint unlocking unit 13. The protection terminal of the fingerprint storage chip U2 is connected to the second terminal of the first resistor R1. The holding terminal of the fingerprint storage chip U2 is connected to the second terminal of the second resistor R2. The power supply terminal of the fingerprint storage chip U2 is connected to the first terminal of the fifth capacitor C5 and the chip power supply, respectively. The first ground terminal and the second ground terminal of the fingerprint storage chip U2 are both grounded. The first terminal of the first resistor R1 and the first terminal of the second resistor R2 are both connected to the chip power supply. The second terminal of the first capacitor is grounded.

[0097] It should be noted that the fingerprint storage chip U2 mentioned above can be any chip used to store user-preset fingerprint information, such as the fingerprint storage chip with model number XT25F32-TDFN8_2X3. Of course, other models can also be used, and this embodiment does not limit this.

[0098] In a specific implementation, the chip select terminal of the aforementioned fingerprint storage chip U2 (i.e. Figure 3 The first pin of U2), the first communication terminal of the aforementioned fingerprint storage chip U2 (i.e. Figure 3 The second pin of U2), the second communication terminal of the fingerprint storage chip U2 mentioned above (i.e. Figure 3 The fifth pin of U2), and the clock terminal of the aforementioned fingerprint storage chip U2 (i.e. Figure 3 The sixth pin of U2 is connected to the fingerprint unlocking unit 13 mentioned above.

[0099] It should be emphasized that the fingerprint storage chip U2 transmits the preset fingerprint signal to the fingerprint unlocking unit 13 through the first communication terminal and the second communication terminal of the fingerprint storage chip U2.

[0100] The protection terminal of the aforementioned fingerprint storage chip U2 (i.e. Figure 3The third pin of U2 is connected to the second terminal of the first resistor R1, and the holding terminal of the fingerprint storage chip U2 (i.e., Figure 3 The seventh pin of U2 is connected to the second terminal of the second resistor R2, and the power supply terminal of the fingerprint storage chip U2 (i.e., Figure 3 The eighth pin of U2 is connected to the first terminal of the fifth capacitor C5 and the power supply of the aforementioned chip, respectively. The first ground terminal of the aforementioned fingerprint storage chip U2 (i.e. Figure 3 The fourth pin of U2) and the second ground terminal of the aforementioned fingerprint storage chip U2 (i.e. Figure 3 The GND1 of U2 is grounded, the first end of the first resistor R1 and the first end of the second resistor R2 are both connected to the power supply of the chip, and the second end of the first capacitor is grounded.

[0101] Furthermore, in order to perform fingerprint unlocking, such as Figure 4 As shown, Figure 4 This is a circuit diagram of the fingerprint unlocking unit in the second embodiment of the button control circuit proposed in this utility model. In this embodiment, the fingerprint unlocking unit 13 includes: a fingerprint unlocking chip U3, a diode D, a third resistor R3, a fourth resistor R4, and sixth capacitors C6 to eleventh capacitors C11;

[0102] The analog-to-digital power supply terminals of the fingerprint unlocking chip U3 are connected to the first power supply terminal of the fingerprint unlocking chip U3, the first terminal of the sixth capacitor C6, and the chip power supply, respectively. The second power supply terminal of the fingerprint unlocking chip U3 is connected to the first terminal of the diode D, the first terminal of the seventh capacitor C7, the first terminal of the eighth capacitor C8, and the chip power supply, respectively. The third power supply terminal of the fingerprint unlocking chip U3 is connected to the first terminal of the ninth capacitor C9. The positioning output terminal of the fingerprint unlocking chip U3 is connected to the positioning module 2. The memory chip select terminal of the fingerprint unlocking chip U3 is connected to the fingerprint storage unit 12. The USB power input terminal of the fingerprint unlocking chip U3 is connected to the first terminal of the tenth capacitor C10 and the chip power supply, respectively. The USB power input terminal of the fingerprint unlocking chip U3... The power output terminal is connected to the first terminal of the eleventh capacitor C11; the acquisition clock terminal of the fingerprint unlocking chip U3 is connected to the first terminal of the third resistor R3; the first acquisition communication terminal of the fingerprint unlocking chip U3 is connected to the fingerprint acquisition unit 11; the acquisition chip select terminal of the fingerprint unlocking chip U3 is connected to the first terminal of the fourth resistor R4 and the fingerprint acquisition unit 11 respectively; the second acquisition communication terminal of the fingerprint unlocking chip U3 is connected to the fingerprint acquisition unit 11; the storage clock terminal of the fingerprint unlocking chip U3 is connected to the fingerprint storage unit 12; both the first and second storage communication terminals of the fingerprint unlocking chip U3 are connected to the fingerprint storage unit 12; and the ground terminal of the fingerprint unlocking chip U3 is grounded.

[0103] The second terminal of the sixth capacitor C6 is grounded. The second terminal of the diode D is connected to the second terminals of the seventh capacitor C7, the eighth capacitor C8, and the ninth capacitor C9, respectively. The second terminal of the diode D is grounded. The second terminal of the tenth capacitor C10 is grounded. The second terminal of the eleventh capacitor C11 is grounded. The second terminal of the third resistor R3 is connected to the fingerprint acquisition module. The second terminal of the fourth resistor R4 is connected to the chip power supply.

[0104] It should be noted that the fingerprint unlocking chip U3 mentioned above can be any chip that compares or matches the current fingerprint signal with the preset fingerprint signal, such as the fingerprint unlocking chip with model number CCM4201S. Of course, other models can also be used, and this embodiment does not limit this.

[0105] In a specific implementation, the analog-to-digital power supply terminal of the aforementioned fingerprint unlocking chip U3 ( Figure 4 The first pin of U3 is connected to the first power supply terminal of the fingerprint unlocking chip U3. Figure 4 The second pin of U3), the first terminal of the sixth capacitor C6, and the power supply connection of the aforementioned chip are all connected to the second power supply terminal of the aforementioned fingerprint unlocking chip U3. Figure 4The seventh pin of U3 is connected to the first terminal of diode D, the first terminal of the seventh capacitor C7, the first terminal of the eighth capacitor C8, and the power supply of the chip, respectively. The third power supply terminal of the fingerprint unlocking chip U3 is... Figure 4 The eighth pin of U3 is connected to the first terminal of the ninth capacitor C9, and the positioning output terminal of the aforementioned fingerprint unlocking chip U3 ( Figure 4 The twelfth pin of U3 is connected to the aforementioned positioning module 2.

[0106] It should be emphasized that the fingerprint unlocking chip U3 transmits the user authentication signal to the positioning module 2 through the positioning output terminal of the fingerprint unlocking chip U3. That is, it outputs the signal when the current fingerprint signal is the same as the preset fingerprint signal, and does not output the signal when they are different.

[0107] The memory chip select terminal of the aforementioned fingerprint unlocking chip U3 ( Figure 4 Pin 12 of U3 is connected to the fingerprint storage unit 12, and the USB power input terminal of the fingerprint unlocking chip U3 is connected to the fingerprint storage unit 12. Figure 4 Pin 17 of U3 is connected to the first terminal of the tenth capacitor C10 and the power supply of the aforementioned chip, respectively. The USB power output terminal of the aforementioned fingerprint unlocking chip U3 ( Figure 4 Pin 18 of U3 is connected to the first terminal of the eleventh capacitor C11, and the acquisition clock terminal of the fingerprint unlocking chip U3 is connected to the first terminal of the eleventh capacitor C11. Figure 4 The 26th pin of U3 is connected to the first end of the third resistor R3, and the first acquisition and communication terminal of the fingerprint unlocking chip U3 is connected to the first end of the third resistor R3. Figure 4 Pin 27 of U3 is connected to the fingerprint acquisition unit 11, and the acquisition chip select pin of the fingerprint unlocking chip U3 is connected to the fingerprint acquisition unit 11. Figure 4 The 28th pin of U3 is connected to the first terminal of the fourth resistor R4 and the fingerprint acquisition unit 11, respectively. The second acquisition communication terminal of the fingerprint unlocking chip U3 ( Figure 4 The 29th pin of U3 is connected to the fingerprint acquisition unit 11. It should be emphasized that the fingerprint unlocking chip U3 receives the current fingerprint signal transmitted by the fingerprint acquisition unit 11 through the first acquisition communication terminal and the second acquisition communication terminal of the fingerprint unlocking chip U3.

[0108] The storage clock terminal of the aforementioned fingerprint unlocking chip U3 ( Figure 4 Pin 30 of U3 is connected to the fingerprint storage unit 12, and the first storage communication terminal of the fingerprint unlocking chip U3 is connected to the fingerprint storage unit 12. Figure 4 Pin 31 of U3 and the second storage communication terminal of the aforementioned fingerprint unlocking chip U3 ( Figure 4The 32nd pin of U3 is connected to the fingerprint storage unit 12. It should also be emphasized that the fingerprint unlocking chip U3 receives the preset fingerprint signal transmitted by the fingerprint storage unit 12 through the first storage communication terminal and the second storage communication terminal of the fingerprint unlocking chip U3.

[0109] The ground terminal of the aforementioned fingerprint unlocking chip U3 ( Figure 4 The 33rd pin of U3 is grounded, the second end of the sixth capacitor C6 is grounded, the second end of the diode D is connected to the second end of the seventh capacitor C7, the second end of the eighth capacitor C8 and the second end of the ninth capacitor C9 respectively, the second end of the diode D is grounded, the second end of the tenth capacitor C10 is grounded, the second end of the eleventh capacitor C11 is grounded, the second end of the third resistor R3 is connected to the fingerprint acquisition module, and the second end of the fourth resistor R4 is connected to the chip power supply.

[0110] In actual use, the first acquisition communication terminal and the second acquisition communication terminal of the fingerprint unlocking chip U3 can receive the current fingerprint signal, and the first storage communication terminal and the second storage communication terminal of the fingerprint unlocking chip U3 can receive the preset fingerprint signal. The fingerprint unlocking chip U3 transmits the user authentication signal to the positioning module 2 through the positioning output terminal of the fingerprint unlocking chip U3. That is, it outputs when the current fingerprint signal is the same as the preset fingerprint signal, and does not output when they are different.

[0111] Reference Figure 5 , Figure 5 The circuit diagram of the Bluetooth unit in the third embodiment of the button control circuit proposed in this utility model is shown.

[0112] Based on the above embodiments, a third embodiment of this utility model is proposed. To enable or disable the positioning function of the storage device, such as... Figure 5 As shown, in this embodiment, the Bluetooth unit 21 includes: a Bluetooth chip U4, an antenna, a crystal oscillator Y, a first inductor L1, a second inductor L2, a fifth resistor R5 to a ninth resistor R9, and a twelfth capacitor C12 to a twenty-seventh capacitor.

[0113] The button input terminal of the Bluetooth chip U4 is connected to the second terminal of the fifth resistor R5; the first communication terminal of the Bluetooth chip U4 is connected to the second terminal of the sixth resistor R6; the fingerprint input terminal of the Bluetooth chip U4 is connected to the fingerprint unlocking module 1; the digital power terminal of the Bluetooth chip U4 is grounded; the first power terminal of the Bluetooth chip U4 is connected to the second terminal of the twelfth capacitor C12; the second power terminal of the Bluetooth chip U4 is connected to the second terminal of the seventh resistor R7 and the first terminal of the thirteenth capacitor C13; the third power terminal of the Bluetooth chip U4 is connected to the first terminal of the first inductor L1; the fourth power terminal of the Bluetooth chip U4 is connected to the second terminal of the first inductor L1; and the fifth power terminal of the Bluetooth chip U4 is connected to the first terminals of the fourteenth capacitor C14, the fifteenth capacitor C15, and the eighth resistor R8. The sixth power supply terminal of Bluetooth chip U4 is connected to the first terminal of the sixteenth capacitor C16. The seventh power supply terminal of Bluetooth chip U4 is connected to the first terminal of the seventeenth capacitor C17 and the power supply. The first crystal oscillator Y terminal of Bluetooth chip U4 is connected to the first terminal of the crystal oscillator Y. The second crystal oscillator Y terminal of Bluetooth chip U4 is connected to the second terminal of the crystal oscillator Y. The reset terminal of Bluetooth chip U4 is connected to the first terminal of the eighteenth capacitor C18. The antenna terminal of Bluetooth chip U4 is connected to the first terminal of the nineteenth capacitor C19. The eighth power supply terminal of Bluetooth chip U4 is connected to the second terminal of the twentieth capacitor C20, the second terminal of the twenty-first capacitor C21, and the second terminal of the ninth resistor R9. The first positioning communication terminal and the second positioning communication terminal of Bluetooth chip U4 are both connected to the positioning unit 22. The ground terminal of Bluetooth chip U4 is grounded.

[0114] The first end of the fifth resistor R5 is connected to the button; the first end of the sixth resistor R6 is connected to the power supply; the first end of the twelfth capacitor C12 is grounded; the first end of the seventh resistor R7 is connected to the power supply; the second ends of the thirteenth capacitor C13, the fourteenth capacitor C14, the fifteenth capacitor C15, the sixteenth capacitor C16, the seventeenth capacitor C17, and the eighteenth capacitor C18 are all grounded; the first ends of the twentieth capacitor C20 and the twenty-first capacitor C21 are grounded; and the second end of the nineteenth capacitor C19 is connected to the twenty-second capacitor. The second terminal of capacitor C22 is connected to the first terminal of the second inductor L2. The second terminal of the second inductor L2 is connected to the second terminal of the twenty-third capacitor C23, the second terminal of the twenty-fourth capacitor C24, and the first terminal of the twenty-fifth capacitor C25. The second terminal of the twenty-fifth capacitor C25 is connected to the second terminal of the twenty-sixth capacitor C26 and the antenna. The second terminal of the twenty-seventh capacitor C27 is connected to the antenna. The first terminals of the twenty-second capacitor C22, the twenty-third capacitor C23, the twenty-fourth capacitor C24, the twenty-sixth capacitor C26, and the twenty-seventh capacitor C27 are all grounded.

[0115] It should be noted that the Bluetooth chip U4 mentioned above can be any chip used to transmit positioning enable and disable signals, such as the AP2T21F40 Bluetooth chip. Of course, other models can also be used, and this embodiment does not impose any limitations on this. The aforementioned power supply (i.e....) Figure 5 The +3V3 power supply can be the power required for the Bluetooth chip to operate. It can be obtained through the power supply built into the storage device, or it can be obtained through other means. This embodiment does not limit this.

[0116] It is understood that the Bluetooth chip in this embodiment is based on the FindMy feature of Apple devices for positioning. The Bluetooth unit 21 is connected to the Apple device through an antenna to achieve FindMy positioning. It should be noted that FindMy positioning can be achieved through GPS positioning, Wi-Fi positioning, Bluetooth positioning, and cellular network positioning. This embodiment uses Bluetooth positioning for explanation. The Bluetooth chip communicates with the Apple device through an antenna. FindMy can roughly determine the distance between the storage device and a known location (such as the user's Apple device).

[0117] In the specific implementation, the button input terminal of the aforementioned Bluetooth chip U4 ( Figure 5 The first pin of U4 is connected to the second terminal of the fifth resistor R5, and the first communication terminal of the Bluetooth chip U4 is connected to the second terminal of the fifth resistor R5. Figure 5The second pin of U4 is connected to the second terminal of the sixth resistor R6. The fingerprint input terminal of the aforementioned Bluetooth chip U4 ( Figure 5 The seventh pin of the Bluetooth chip U4 is connected to the fingerprint unlocking module 1, and the digital power supply terminal of the Bluetooth chip U4 is connected to the fingerprint unlocking module 1. Figure 5 The eighth pin of U4 is grounded, and the first power supply terminal of the aforementioned Bluetooth chip U4 ( Figure 5 The ninth pin of U4 is connected to the second terminal of the twelfth capacitor C12, and the second power supply terminal of the Bluetooth chip U4 is connected to the second terminal of the twelfth capacitor C12. Figure 5 The tenth pin of U4 is connected to the second terminal of the seventh resistor R7 and the first terminal of the thirteenth capacitor C13, respectively. The third power supply terminal of the Bluetooth chip U4 is... Figure 5 The eleventh pin of the aforementioned U4 is connected to the first terminal of the aforementioned first inductor L1, and the fourth power supply terminal of the aforementioned Bluetooth chip U4 is connected to the first terminal of the aforementioned first inductor L1. Figure 5 The twelfth pin of U4 is connected to the second terminal of the first inductor L1, and the fifth power supply terminal of the Bluetooth chip U4 is connected to the second terminal of the first inductor L1. Figure 5 Pin 13 of U4 is connected to the first terminal of capacitor C14, capacitor C15, and resistor R8, respectively. The sixth power supply terminal of the aforementioned Bluetooth chip U4 (…) Figure 5 The fourteenth pin of U4 is connected to the first end of the sixteenth capacitor C16, and the seventh power supply terminal of the Bluetooth chip U4 is connected to the first end of the sixteenth capacitor C16. Figure 5 Pin 17 of U4 is connected to the first terminal of the seventeenth capacitor C17 and the power supply, respectively. The first crystal oscillator terminal of the Bluetooth chip U4 is connected to the first terminal of the seventeenth capacitor C17 and the power supply. Figure 5 The 23rd pin of U4 is connected to the first end of the aforementioned crystal oscillator Y, and the second crystal oscillator terminal of the aforementioned Bluetooth chip U4 ( Figure 5 Pin 22 of U4 is connected to the second terminal of the aforementioned crystal oscillator Y, and the reset terminal of the aforementioned Bluetooth chip U4 ( Figure 5 Pin 25 of U4 is connected to the first end of capacitor C18, and the antenna terminal of the aforementioned Bluetooth chip U4 is connected to the first end of capacitor C18. Figure 5 Pin 26 of U4 is connected to the first end of capacitor C19, and the eighth power supply terminal of the Bluetooth chip U4 is connected to the first end of capacitor C19. Figure 5 Pin 27 of U4 is connected to the second terminal of capacitor C20, capacitor C21, and resistor R9, respectively. The first positioning communication terminal of Bluetooth chip U4 (…) Figure 5 Pin 31 of U4 and the second positioning communication terminal of the aforementioned Bluetooth chip U4 are both ( Figure 5 The 32nd pin of U4 is connected to the aforementioned positioning unit 22.

[0118] It should be emphasized that the button input terminal of the Bluetooth chip U4 receives the off signal generated when the button 3 is triggered, the fingerprint input terminal of the Bluetooth chip U4 receives the user authentication signal, and the Bluetooth chip U4 outputs the positioning on signal through the first positioning communication terminal and the second positioning communication terminal of the Bluetooth chip U4 to transmit signals with the positioning unit.

[0119] The ground terminal of the aforementioned Bluetooth chip U4 ( Figure 5 Pin 33 of U4 is grounded; the first end of the fifth resistor R5 is connected to the button; the first end of the sixth resistor R6 is connected to the power supply; the first end of the twelfth capacitor C12 is grounded; the first end of the seventh resistor R7 is connected to the power supply; the second ends of the thirteenth capacitor C13, the fourteenth capacitor C14, the fifteenth capacitor C15, the sixteenth capacitor C16, the seventeenth capacitor C17, and the eighteenth capacitor C18 are all grounded; the first ends of the twentieth capacitor C20 and the twenty-first capacitor C21 are grounded; and the second end of the nineteenth capacitor C19 is... The second terminal of the 22nd capacitor C22 and the first terminal of the second inductor L2 are connected to the second terminal of the 23rd capacitor C23, the second terminal of the 24th capacitor C24, and the first terminal of the 25th capacitor C25. The second terminal of the 25th capacitor C25 is connected to the second terminal of the 26th capacitor C26 and the antenna. The second terminal of the 27th capacitor C27 is connected to the antenna. The first terminals of the 22nd capacitor C22, the 23rd capacitor C23, the 24th capacitor C24, the 26th capacitor C26, and the 27th capacitor C27 are all grounded.

[0120] Furthermore, in order to locate the storage device, such as Figure 6 As shown, Figure 6 This is a circuit diagram of the positioning unit in the third embodiment of the button control circuit proposed in this utility model. In this embodiment, the positioning unit 22 includes: a positioning chip U5, a tenth resistor R10, an eleventh resistor R11, a twenty-eighth capacitor C28, and a twenty-ninth capacitor C29;

[0121] The serial input terminal of the positioning chip U5 is grounded. The clock terminal of the positioning chip U5 is connected to the second terminal of the tenth resistor R10. The first power terminal of the positioning chip U5 is connected to the power supply and the first terminal of the twenty-eighth capacitor C28. The first unselected terminal of the positioning chip U5 is grounded. The first and second interrupt terminals of the positioning chip U5 are both connected to the Bluetooth unit 21. The second power terminal of the positioning chip U5 is connected to the power supply and the first terminal of the twenty-ninth capacitor C29. The digital terminal and the ground terminal of the positioning chip U5 are both grounded. The second unselected terminal of the positioning chip U5 is connected to the first terminal of the tenth resistor R10, the first terminal of the eleventh resistor R11, and the power supply. The alternative terminal of the positioning chip U5 is connected to the second terminal of the eleventh resistor R11.

[0122] The second terminal of the 28th capacitor C28 and the second terminal of the 29th capacitor C29 are both grounded.

[0123] It should be noted that the positioning chip U5 mentioned above can be any positioning chip, such as the positioning chip with model number SC7A20. Of course, other models can also be used, and this embodiment does not limit this.

[0124] In a specific implementation, the serial input terminal of the aforementioned positioning chip U5 ( Figure 6 The first pin of U5 is grounded, and the clock pin of the aforementioned positioning chip U5 is... Figure 6 The second pin of U5 is connected to the second end of the tenth resistor R10, and the first power supply terminal of the positioning chip U5 is connected to the second pin of the tenth resistor R10. Figure 6 The third pin of U5 is connected to the aforementioned power supply and the first terminal of the aforementioned twenty-eighth capacitor C28, respectively. The first unselected terminal of the positioning chip U5 ( Figure 6 The fourth pin of U5 is grounded, and the first interrupt terminal of the aforementioned positioning chip U5 ( Figure 6 The fifth pin of U5) and the second interrupt terminal of the aforementioned positioning chip U5 ( Figure 6 The sixth pin of U5 is connected to the Bluetooth unit 21 mentioned above.

[0125] It should be emphasized that the positioning chip U5 transmits data with the Bluetooth chip U4 through the first interrupt terminal and the second interrupt terminal of the positioning chip U5. It receives the positioning enable signal output by the Bluetooth chip U4 to enable the positioning function, and disables the positioning function if it does not receive the positioning enable signal.

[0126] The second power supply terminal of the aforementioned positioning chip U5 ( Figure 6Pin 7 of U5 is connected to the aforementioned power supply and the first terminal of the aforementioned twenty-ninth capacitor C29, respectively. The digital terminal of the aforementioned positioning chip U5 ( Figure 6 The eighth pin of U5 and the ground terminal of the aforementioned positioning chip U5 ( Figure 6 The ninth pin of U5 is grounded, and the second unselected pin of the positioning chip U5 is grounded. Figure 6 The eleventh pin of the positioning chip U5 is connected to the first terminal of the tenth resistor R10, the first terminal of the eleventh resistor R11, and the power supply, respectively. The alternative terminal of the positioning chip U5 ( Figure 6 The twelfth pin of U5 is connected to the second end of the eleventh resistor R11 mentioned above;

[0127] The second terminal of the aforementioned twenty-eighth capacitor C28 and the second terminal of the aforementioned twenty-ninth capacitor C29 are both grounded.

[0128] To achieve the above objectives, this utility model also proposes a storage device, which includes the button control circuit of the storage device as described above.

[0129] It should be noted that the specific implementation of the storage device provided in this embodiment can refer to the above embodiments, and this embodiment will not elaborate on them. Therefore, the effects achieved by the storage device in this embodiment can also refer to the above embodiments, and this embodiment will not elaborate on them either.

[0130] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A button control circuit supporting FindMy positioning function, characterized in that, The button control circuit includes: a fingerprint unlocking module, a positioning module, and a button; The positioning module is connected to both the fingerprint unlocking module and the button. The button is used to transmit a generated shutdown signal to the positioning module when triggered by the user; The positioning module is used to keep the positioning function enabled when it receives the shutdown signal and when it does not receive the user authentication signal generated by the fingerprint unlocking module. The user authentication signal is generated by the fingerprint unlocking module when the current fingerprint signal of the user is the same as the preset fingerprint signal.

2. The button control circuit supporting FindMy positioning function as described in claim 1, characterized in that, The fingerprint unlocking module is used to transmit the generated user authentication signal to the positioning module when the current fingerprint signal collected is the same as the preset fingerprint signal. The positioning module is also used to disable the positioning function when it receives the shutdown signal and the user authentication signal.

3. The button control circuit supporting FindMy positioning function as described in claim 1 or 2, characterized in that, The fingerprint unlocking module includes: a fingerprint acquisition unit, a fingerprint storage unit, and a fingerprint unlocking unit; The fingerprint unlocking unit is connected to the fingerprint acquisition unit, the fingerprint storage unit, and the positioning module, respectively; The fingerprint acquisition unit is used to acquire the user's current fingerprint signal and transmit the current fingerprint signal to the fingerprint unlocking unit; The fingerprint unlocking unit is used to transmit the generated user authentication signal to the positioning module when the current fingerprint signal is the same as the preset fingerprint signal pre-stored in the fingerprint storage unit.

4. The button control circuit supporting FindMy positioning function as described in claim 3, characterized in that, The fingerprint acquisition unit includes: a fingerprint acquisition chip and a first capacitor to a fourth capacitor; The first power supply terminal of the fingerprint acquisition chip is connected to the second terminal of the first capacitor. The second power supply terminal of the fingerprint acquisition chip is connected to the first terminal of the second capacitor and the chip power supply. The third power supply terminal of the fingerprint acquisition chip is connected to the first terminal of the third capacitor and the chip power supply. The first acquisition terminal of the fingerprint acquisition chip is connected to the first terminal of the fourth capacitor. The second acquisition terminal of the fingerprint acquisition chip is connected to the second terminal of the fourth capacitor. The recognition terminal of the fingerprint acquisition chip is connected to the chip power supply. The first communication terminal, the second communication terminal, the clock terminal, the chip select terminal, the interrupt terminal, and the reset terminal of the fingerprint acquisition chip are all connected to the fingerprint unlocking unit. The first ground terminal of the fingerprint acquisition chip is connected to the second terminal of the second capacitor. The first ground terminal, the second ground terminal, the first open selection terminal, the fifth open selection terminal, the sixth open selection terminal, the eighth open selection terminal, and the test terminal of the fingerprint acquisition chip are all grounded. The first terminal of the first capacitor is grounded, the first terminal of the second capacitor is connected to the chip power supply, and the second terminal of the third capacitor is grounded.

5. The button control circuit supporting FindMy positioning function as described in claim 3, characterized in that, The fingerprint storage unit includes: a fingerprint storage chip, a first resistor, a second resistor, and a fifth capacitor; The chip select terminal, the first communication terminal, the second communication terminal, and the clock terminal of the fingerprint storage chip are all connected to the fingerprint unlocking unit. The protection terminal of the fingerprint storage chip is connected to the second terminal of the first resistor. The holding terminal of the fingerprint storage chip is connected to the second terminal of the second resistor. The power supply terminal of the fingerprint storage chip is connected to the first terminal of the fifth capacitor and the chip power supply, respectively. The first ground terminal and the second ground terminal of the fingerprint storage chip are both grounded. The first terminal of the first resistor and the first terminal of the second resistor are both connected to the chip power supply. The second terminal of the first capacitor is grounded.

6. The button control circuit supporting FindMy positioning function as described in claim 3, characterized in that, The fingerprint unlocking unit includes: a fingerprint unlocking chip, a diode, a third resistor, a fourth resistor, and sixth to eleventh capacitors; The analog-to-digital power supply terminal of the fingerprint unlocking chip is connected to the first power supply terminal of the fingerprint unlocking chip, the first terminal of the sixth capacitor, and the chip power supply, respectively. The second power supply terminal of the fingerprint unlocking chip is connected to the first terminal of the diode, the first terminal of the seventh capacitor, the first terminal of the eighth capacitor, and the chip power supply, respectively. The third power supply terminal of the fingerprint unlocking chip is connected to the first terminal of the ninth capacitor. The positioning output terminal of the fingerprint unlocking chip is connected to the positioning module. The memory chip select terminal of the fingerprint unlocking chip is connected to the fingerprint storage unit. The USB power input terminal of the fingerprint unlocking chip is connected to the first terminal of the tenth capacitor and the chip power supply, respectively. The power output terminal B is connected to the first terminal of the eleventh capacitor; the acquisition clock terminal of the fingerprint unlocking chip is connected to the first terminal of the third resistor; the first acquisition communication terminal of the fingerprint unlocking chip is connected to the fingerprint acquisition unit; the acquisition chip select terminal of the fingerprint unlocking chip is connected to the first terminal of the fourth resistor and the fingerprint acquisition unit respectively; the second acquisition communication terminal of the fingerprint unlocking chip is connected to the fingerprint acquisition unit; the storage clock terminal of the fingerprint unlocking chip is connected to the fingerprint storage unit; both the first and second storage communication terminals of the fingerprint unlocking chip are connected to the fingerprint storage unit; and the ground terminal of the fingerprint unlocking chip is grounded. The second terminal of the sixth capacitor is grounded. The second terminal of the diode is connected to the second terminals of the seventh capacitor, the eighth capacitor, and the ninth capacitor, respectively. The second terminal of the diode is grounded. The second terminal of the tenth capacitor is grounded. The second terminal of the eleventh capacitor is grounded. The second terminal of the third resistor is connected to the fingerprint acquisition module. The second terminal of the fourth resistor is connected to the chip power supply.

7. The button control circuit supporting FindMy positioning function as described in claim 1, characterized in that, The positioning module includes: a Bluetooth unit and a positioning unit; The Bluetooth unit is connected to the fingerprint unlocking module, the button, and the positioning unit, respectively. The Bluetooth unit is used to continuously transmit a location activation signal to the location unit when it receives the shutdown signal and when it does not receive the user authentication signal generated by the fingerprint unlocking module. The positioning unit is used to keep the positioning function enabled when it continuously receives the positioning enable signal.

8. The button control circuit supporting FindMy positioning function as described in claim 7, characterized in that, The Bluetooth unit includes: a Bluetooth chip, an antenna, a crystal oscillator, a first inductor, a second inductor, a fifth to a ninth resistor, and a twelfth to a twenty-seventh capacitor; The button input terminal of the Bluetooth chip is connected to the second terminal of the fifth resistor; the first communication terminal of the Bluetooth chip is connected to the second terminal of the sixth resistor; the fingerprint input terminal of the Bluetooth chip is connected to the fingerprint unlocking module; the digital power terminal of the Bluetooth chip is grounded; the first power terminal of the Bluetooth chip is connected to the second terminal of the twelfth capacitor; the second power terminal of the Bluetooth chip is connected to the second terminal of the seventh resistor and the first terminal of the thirteenth capacitor, respectively; the third power terminal of the Bluetooth chip is connected to the first terminal of the first inductor; the fourth power terminal of the Bluetooth chip is connected to the second terminal of the first inductor; and the fifth power terminal of the Bluetooth chip is connected to the first terminals of the fourteenth capacitor, the fifteenth capacitor, and the eighth resistor, respectively. The sixth power supply terminal of the Bluetooth chip is connected to the first terminal of the sixteenth capacitor. The seventh power supply terminal of the Bluetooth chip is connected to the first terminal of the seventeenth capacitor and the power supply. The first crystal oscillator terminal of the Bluetooth chip is connected to the first terminal of the crystal oscillator. The second crystal oscillator terminal of the Bluetooth chip is connected to the second terminal of the crystal oscillator. The reset terminal of the Bluetooth chip is connected to the first terminal of the eighteenth capacitor. The antenna terminal of the Bluetooth chip is connected to the first terminal of the nineteenth capacitor. The eighth power supply terminal of the Bluetooth chip is connected to the second terminal of the twentieth capacitor, the second terminal of the twenty-first capacitor, and the second terminal of the ninth resistor. The first positioning communication terminal and the second positioning communication terminal of the Bluetooth chip are both connected to the positioning unit. The ground terminal of the Bluetooth chip is grounded. The first end of the fifth resistor is connected to the button, the first end of the sixth resistor is connected to the power supply, the first end of the twelfth capacitor is grounded, the first end of the seventh resistor is connected to the power supply, the second ends of the thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, and eighteenth capacitors are all grounded, the first ends of the twentieth and twenty-first capacitors are grounded, the second end of the nineteenth capacitor is connected to the second end of the twenty-second capacitor and the first end of the second inductor, the second end of the second inductor is connected to the second ends of the twenty-third, twenty-fourth, and twenty-fifth capacitors, the second end of the twenty-fifth capacitor is connected to the second end of the twenty-sixth capacitor and the antenna, the second end of the twenty-seventh capacitor is connected to the antenna, and the first ends of the twenty-second, twenty-third, twenty-fourth, twenty-sixth, and twenty-seventh capacitors are all grounded.

9. The button control circuit supporting FindMy positioning function as described in claim 7, characterized in that, The positioning unit includes: a positioning chip, a tenth resistor, an eleventh resistor, a twenty-eighth capacitor, and a twenty-ninth capacitor; The serial input terminal of the positioning chip is grounded; the clock terminal of the positioning chip is connected to the second terminal of the tenth resistor; the first power supply terminal of the positioning chip is connected to the power supply and the first terminal of the twenty-eighth capacitor; the first unselected terminal of the positioning chip is grounded; the first and second interrupt terminals of the positioning chip are both connected to the Bluetooth unit; the second power supply terminal of the positioning chip is connected to the power supply and the first terminal of the twenty-ninth capacitor; the digital terminal and the ground terminal of the positioning chip are both grounded; the second unselected terminal of the positioning chip is connected to the first terminal of the tenth resistor, the first terminal of the eleventh resistor, and the power supply; and the alternative terminal of the positioning chip is connected to the second terminal of the eleventh resistor. The second terminal of the 28th capacitor and the second terminal of the 29th capacitor are both grounded.

10. A storage device, characterized in that, The storage device includes a button control circuit that supports the FindMy positioning function as described in any one of claims 1 to 9.

Images