TW202107342A - Fingerprint authentication method capable of preventing undesired locking before performing settings on the fingerprint authentication system - Google Patents

Abstract

A fingerprint authentication method is applicable to a fingerprint authentication system. The fingerprint authentication system comprises a control unit and a fingerprint sensing portion. The method comprises the following steps: (A) after the control unit determines that the fingerprint sensing portion is touched, the control unit determines whether a fingerprint data in a database includes an administrator fingerprint and, if the determination is negative, authentication is determined to be successful; (B) if the determination in step (A) is positive, the control unit performs a comparison to determine whether a fingerprint detected by the fingerprint sensing portion matches with the fingerprint data, such that the authentication is determined to be successful when the comparison result is positive and the verification is determined to be not successful when the comparison result is negative. The comparison is carried out only when the fingerprint data includes an administrator fingerprint and, when the fingerprint data does not include an administrator fingerprint, authentication is determined to be successful only if a user touches the fingerprint sensing portion, so as to prevent a difficulty condition of being unable to unlock or operate due to erroneous locking occurred before performing settings.

Description

Fingerprint authentication method

The invention relates to an authentication method, in particular to a fingerprint authentication method.

The existing fingerprint authentication method applied to a door cabinet is to provide an electric lock, a fingerprint sensor and a control unit on the door cabinet.

When a user touches the fingerprint sensor with a finger, the control unit will verify the fingerprint information sensed by the fingerprint sensor. When the verification is successful, the control unit will control the electric lock to unlock, so that the door cabinet Can be turned on.

However, if the electric lock is locked by mistake when it is installed or the user has not set it for the first time, since no fingerprint information has been entered at this time, the control unit will not be able to search for the matching fingerprint information and cannot be unlocked. As a result, the brand-new door cabinet cannot be used. If the item has been inserted, the user must destroy the electric lock or the door cabinet before taking the object, which is quite inconvenient.

Therefore, the purpose of the present invention is to provide a fingerprint authentication method that can avoid being locked by mistake and cannot be opened when it has not been set.

Therefore, the fingerprint authentication method of the present invention is applied to a fingerprint authentication system. The fingerprint authentication system includes a control unit and a fingerprint sensor. The method includes the following steps:

(A) After the control unit determines that the fingerprint sensor is touched, the control unit determines whether a fingerprint data in a database contains an administrator fingerprint, and if the determination is no, it determines that the authentication is successful.

(B) If the judgment of step (A) is yes, the control unit compares whether the fingerprint detected by the fingerprint sensor is consistent with the fingerprint data, if the judgment is yes, the authentication is judged to be successful, if the judgment is no, then The authentication is determined to be unsuccessful.

The effect of the present invention is to compare and determine when the fingerprint data includes the manager's fingerprint, and when the fingerprint data does not include the manager's fingerprint, the user only needs to touch the fingerprint sensor to determine the authentication Success can avoid the dilemma that the user is locked by mistake and cannot be opened or used before setting.

1 and 2, an embodiment of the fingerprint authentication method of the present invention is applied to a fingerprint authentication system, the fingerprint authentication system is suitable for installation in a door cabinet 9 provided with an electric lock 8, the fingerprint authentication system includes a Control panel 2 and a control unit 3. The control panel 2 has a fingerprint sensor 21, a wake-up button 22, a new button 23, a delete button 24, and an indicator light 25. The control unit 3 is electrically connected to the fingerprint sensor Section 21, the wake-up button 22, the new button 23, the delete button 24, the indicator light 25 and the electric lock 8, and according to the signal output from the control panel 2 by the user to determine whether to unlock or perform the following述functionality.

The fingerprint sensor 21, the wake-up button 22 and the indicator light 25 are arranged on the outside of the door cabinet 9, and the new button 23 and the delete button 24 are arranged on the inside of the door cabinet 9.

Corresponding to the control panel 2, the fingerprint authentication method can perform four functions including authentication, wake-up, adding and deleting, which are described as follows:

Authentication function: Refer to Figure 1, Figure 2 and Figure 3. The authentication function includes steps 41 to 44.

In steps 41 to 43, after the control unit 3 is activated, the control unit 3 can control the indicator light 25 to emit a white light, indicating that the control unit 3 enters a standby mode, and then the user can touch the fingerprint sensor 21 with a finger After the control unit 3 determines that the fingerprint sensor 21 is touched, the control unit 3 first determines whether a fingerprint data in a database contains an administrator fingerprint, and if the determination is no, it means that the fingerprint data currently contains If there is no fingerprint, the control unit 3 determines that the authentication is successful, and controls the electric lock 8 to unlock, so that the user can press the new button 23 to make further settings after opening the door cabinet 9.

In steps 43 and 44, if the judgment of step 42 is yes, it means that the administrator fingerprint has been created in the fingerprint data, and there may also be at least one user fingerprint at the same time. Therefore, the control unit 3 compares the fingerprint sensor 21 Whether the detected fingerprint matches the fingerprint data (the administrator's fingerprint or at least one user's fingerprint), if the judgment is yes, it is judged that the authentication is successful, the control unit 3 controls the electric lock 8 to unlock, and if the judgment is no, It is determined that the authentication is unsuccessful, the control unit 3 controls the indicator light 25 to emit red light, and the electric lock 8 maintains the locked state.

Wake-up function: Refer to Figure 1, Figure 2 and Figure 4, the wake-up function includes steps 51~54.

In steps 51 to 53, the control unit 3 enters the standby mode after being started, and after determining that it has not been operated for an idle time (for example, 15 seconds), enters a sleep mode, and controls the indicator light 25 to go out. In the sleep mode, even if the user touches the fingerprint sensor 21, the control unit 3 will not perform interpretation and unlocking. In addition, the control unit 3 can also control the fingerprint sensor 21 to stop sensing or stop part of the operation, so as to reduce energy consumption and achieve a power saving effect.

In step 54, the user can output a wake-up signal by pressing the wake-up button 22. After receiving the wake-up signal in the sleep mode, the control unit 3 will re-enter the standby mode to perform the authentication function. At this time, The control unit 3 controls the indicator 25 to turn on white again to inform the user that the control unit 3 has entered the standby mode.

New function: Refer to Figure 1, Figure 2 and Figure 5. The new function includes steps 61~65 to add the user's fingerprint to the fingerprint data.

In steps 61 to 63, the user can output a new signal by pressing the new button 23. In order to avoid accidental touches, it is better to set the new button 23 to be pressed for a period of time (for example, 3 seconds). The control unit 3 determines that the newly added signal is received. After the control unit 3 determines that the new signal is received, the control unit 3 determines whether the fingerprint data contains the administrator's fingerprint. If the determination is no, it means that there is no fingerprint in the fingerprint data, and the control unit 3 then Step 63 is executed to set the first stored fingerprint as the administrator's fingerprint, that is, the user who first stores the fingerprint is the administrator. In step 63, the control unit 3 repeats a sensing procedure for a predetermined number of times (for example, 3 times), and then finishes setting the fingerprint of the administrator.

The sensing procedure is: the control unit 3 controls the indicator 25 to light green, and the user touches the fingerprint sensor 21 with a finger. After the fingerprint sensor 21 finishes sensing the fingerprint, the control unit 3 controls the indicator 25 The green light flashes, prompting the user to remove the finger, so that the induction process is completed.

The user then touches the fingerprint sensor 21 again to perform a second sensing. The control unit 3 controls the indicator light 25 to light green when the fingerprint sensor 21 is sensing, and controls the indicator light after the fingerprint sensing is completed. 25 flashes green light. After repeating the sensing process three times, the control unit 3 controls the indicator light 25 to return to the bright white light and return to the standby mode. The fingerprint information of the three sensings will be stored in the fingerprint data and act as the administrator Fingerprint for subsequent authentication.

In steps 64 and 65, when the judgment of step 62 is yes, it means that the administrator fingerprint has been established in the fingerprint data. At this time, the administrator needs to touch the fingerprint sensor 21 first, and the control unit 3 Compare whether the fingerprint detected by the fingerprint sensor 21 matches the fingerprint of the administrator. If the judgment is yes, it means that the administrator has authorized the new addition. Then set a user fingerprint. In step 65, Same as the operation in step 63, the control unit 3 repeats the sensing procedure for the predetermined number of times (for example, 3 times), completes setting the user fingerprint, and stores the user fingerprint into the fingerprint data for subsequent authentication.

It is worth mentioning that the fingerprint data can also be set to include only the manager's fingerprint and not the other user's fingerprints. At this time, in step 61, when the control unit 3 determines that the new signal is received, it is Go directly to step 63 to set the manager's fingerprint.

Delete function: Refer to Figure 1, Figure 2 and Figure 6. The delete function includes steps 71 to 73 to delete all fingerprint information in the fingerprint data.

In steps 71 to 73, the user can output a delete signal by pressing the delete button 24. In order to avoid accidental touches, it is better to set the control unit 3 to press the delete button 24 for a period of time (for example, 3 seconds). It is determined that the delete signal is received. After the control unit 3 determines that the delete signal is received, the manager must touch the fingerprint sensor 21 to make the control unit 3 compare whether the fingerprint detected by the fingerprint sensor 21 matches the manager's fingerprint. If the judgment is yes, it means that the control unit 3 deletes the fingerprint data with the approval of the administrator.

It is worth mentioning that the fingerprint authentication system may also include a buzzer or a horn (not shown), and the control unit 3 compares the fingerprint detected by the fingerprint sensor 21 with the fingerprint of the administrator or the user. When the fingerprint matches, the control unit 3 can output a prompt sound signal to the buzzer or horn to output a sound to remind the user that the authentication is successful.

In summary, the fingerprint authentication method of the present invention performs comparison and judgment only when the fingerprint data contains the fingerprint of the administrator, and when the fingerprint data does not contain the fingerprint of the administrator, the user only needs to touch the fingerprint sensor 21 can determine that the authentication is successful, which can avoid the dilemma that the user accidentally locks the electric lock 8 and cannot open the door cabinet 9 when the setting has not been made, so the objective of the invention can be achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope of the patent of the present invention.

2: control panel 21: Fingerprint sensor 22: Wake up button 23: New button 24: delete button 25: indicator light 3: control unit 41~44: Steps 51~54: Steps 61~65: Steps 71~73: Steps 8: Electric lock 9: Door cabinet

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figures 1 and 2 are schematic diagrams illustrating that an embodiment of the fingerprint authentication method of the present invention is applied to a fingerprint authentication system, and the fingerprint authentication system is installed in a door cabinet provided with an electric lock; Figure 3 is a flowchart of the authentication function of this embodiment; Figure 4 is a flowchart of the wake-up function of this embodiment; FIG. 5 is a flowchart of the newly added function of this embodiment; and Fig. 6 is a flowchart of the deletion function of this embodiment.

41~44: Steps

Claims (8)

A fingerprint authentication method is applied to a fingerprint authentication system. The fingerprint authentication system includes a control unit and a fingerprint sensor. The method includes the following steps: (A) After the control unit determines that the fingerprint sensor is touched, the control unit determines whether a fingerprint data in a database contains an administrator fingerprint, and if the determination is no, it determines that the authentication is successful; and (B) If the judgment of step (A) is yes, the control unit compares whether the fingerprint detected by the fingerprint sensor is consistent with the fingerprint data, if the judgment is yes, then the authentication is judged to be successful, if the judgment is no, then The authentication is determined to be unsuccessful. The fingerprint authentication method as described in claim 1, further includes the following steps: (C) The control unit enters a standby mode after startup, and enters a sleep mode after judging that it has not been operated for an idle time; and (D) The control unit re-enters the standby mode after receiving a wake-up signal in the sleep mode. The fingerprint authentication method as described in claim 1, further includes the following steps: (E) After the control unit receives a new signal, it sets the manager's fingerprint. The fingerprint authentication method as described in claim 1, further includes the following steps: (F) After the control unit receives a new signal, the control unit determines whether the fingerprint data includes the manager's fingerprint, and if the judgment is no, sets the manager's fingerprint; and (G) If the judgment of step (F) is yes, the control unit compares whether the fingerprint detected by the fingerprint sensor matches the manager's fingerprint, and if the judgment is yes, it sets a user fingerprint and uses the The user's fingerprint is stored in the fingerprint data. The fingerprint authentication method according to claim 4, wherein, in step (F), the control unit repeats a sensing procedure a predetermined number of times, and then finishes setting the administrator fingerprint. The fingerprint authentication method according to claim 4, wherein, in step (G), the control unit repeats a sensing procedure a predetermined number of times to complete the setting of the user fingerprint. The fingerprint authentication method as described in claim 1, further includes the following steps: (H) After the control unit receives a delete signal, the control unit compares whether the fingerprint detected by the fingerprint sensor matches the manager's fingerprint, and if the judgment is yes, deletes the fingerprint data. The fingerprint authentication method as described in claim 1, further includes the following steps: (I) The control unit outputs a prompt sound signal when comparing the fingerprint detected by the fingerprint sensor with the fingerprint data.

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