CN115424387A - Intelligent door lock and unlocking method - Google Patents

Intelligent door lock and unlocking method Download PDF

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Publication number
CN115424387A
CN115424387A CN202211028069.6A CN202211028069A CN115424387A CN 115424387 A CN115424387 A CN 115424387A CN 202211028069 A CN202211028069 A CN 202211028069A CN 115424387 A CN115424387 A CN 115424387A
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human body
signal
body induction
moment
signal intensity
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范伟佳
王莎莎
刘洋
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Qingdao Hisense Smart Life Technology Co Ltd
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Qingdao Hisense Smart Life Technology Co Ltd
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The application discloses an intelligent door lock and an unlocking method, and belongs to the field of intelligent control. The method comprises the following steps: transmitting a first human body induction signal at a first time and determining a first signal strength; transmitting a second human body induction signal at a second moment after the first moment and determining a second signal strength; if the second signal intensity is greater than the first signal intensity and the difference value between the second signal intensity and the first signal intensity is greater than or equal to the human body induction intensity threshold value, carrying out face recognition on the target object; and if the face recognition of the target object is successful, executing unlocking operation. In this application, intelligence lock can only detect the target object of motion, and can not detect static target object, and the human response sensitivity of intelligent lock can also automatically regulated avoids intelligent lock to be in the state of being triggered always, has promoted the battery continuation of the journey and the life of intelligent lock.

Description

Intelligent door lock and unlocking method
Technical Field
The application relates to the field of intelligent control, in particular to an intelligent door lock and an unlocking method.
Background
For the intelligent door lock unlocked by face recognition, whether a person approaches the intelligent door lock is firstly detected, if the person approaches the intelligent door lock, the face recognition is carried out, and if the face recognition succeeds, the door lock operation is executed. However, this intelligence lock always detects people or the object in front of it, can lead to intelligent lock to be in the state of being triggered frequently, and then can reduce the life of intelligent lock.
Disclosure of Invention
The application provides an intelligent door lock and an unlocking method, which can solve the problem that the intelligent door lock is frequently triggered by mistake in the related technology. The technical scheme is as follows:
on one hand, the intelligent door lock comprises a controller, a human body sensor, a camera and a motor; the controller is configured to:
under the condition that a first time reaches the starting time of a human body induction cycle, controlling the human body inductor to emit a first human body induction signal and determining first signal intensity, wherein the first signal intensity is the signal intensity reflected back after the first human body induction signal meets a target object;
at a second time after the first time, controlling the human body sensor to emit a second human body sensing signal and determining a second signal intensity, wherein the second signal intensity is the signal intensity of the second human body sensing signal reflected back after encountering the target object, and the duration between the second time and the first time is less than the length of the human body sensing period;
if the second signal intensity is greater than the first signal intensity, and the difference value between the second signal intensity and the first signal intensity is greater than or equal to a human body induction intensity threshold value, controlling the camera to perform face recognition on the target object;
and if the face recognition of the target object is successful, controlling the motor to execute unlocking operation.
Optionally, the controller is further configured to:
and if the second signal strength is less than or equal to the first signal strength, or the second signal strength is greater than the first signal strength but the difference value between the second signal strength and the first signal strength is less than the human body induction strength threshold value, waiting for the next human body induction period.
Optionally, the controller is further configured to:
if the face recognition of the target object fails, determining the continuous times of the face recognition failure after the last human body induction sensitivity adjustment and before the first moment;
if the continuous times of the face recognition failure are more than or equal to M, determining the duration between the first moment and a third moment, wherein the third moment is the moment which is before the first moment and begins from the first moment and has the M-th face recognition failure;
and if the duration between the first moment and the third moment is less than or equal to a duration threshold, reducing the human body induction sensitivity.
Optionally, the controller is specifically configured to:
increasing the human body induction intensity threshold, and/or increasing the length of the human body induction period.
Optionally, the controller is further configured to:
and under the condition of unlocking by the electronic key or the entity key, restoring the human body induction sensitivity to the default sensitivity.
In another aspect, a method of unlocking is provided, the method comprising:
under the condition that a first time reaches the starting time of a human body induction cycle, emitting a first human body induction signal and determining first signal intensity, wherein the first signal intensity refers to the signal intensity of a reflected signal of the first human body induction signal after meeting a target object;
emitting a second human body induction signal at a second moment after the first moment and determining second signal intensity, wherein the second signal intensity refers to the signal intensity of the second human body induction signal reflected back after encountering the target object, and the duration between the second moment and the first moment is less than the length of the human body induction period;
if the second signal intensity is greater than the first signal intensity, and the difference value between the second signal intensity and the first signal intensity is greater than or equal to a human body induction intensity threshold value, performing face recognition on the target object;
and if the face recognition of the target object is successful, executing unlocking operation.
Optionally, the method further comprises:
if the second signal strength is less than or equal to the first signal strength, or the second signal strength is greater than the first signal strength but the difference between the second signal strength and the first signal strength is less than the human body induction strength threshold, waiting for a next human body induction period.
Optionally, the method further comprises:
if the face recognition of the target object fails, determining the continuous times of face recognition failure after the last adjustment of the human body induction sensitivity and before the first moment;
if the continuous times of the face recognition failure are more than or equal to M, determining the duration between the first moment and a third moment, wherein the third moment is the moment which is before the first moment and begins from the first moment and has the M-th face recognition failure;
and if the duration between the first moment and the third moment is less than or equal to a duration threshold, reducing the human body induction sensitivity.
Optionally, in the process of reducing the human body sensing sensitivity, the method includes:
increasing the human body induction intensity threshold, and/or increasing the length of the human body induction period.
Optionally, after the reducing the human body sensing sensitivity, the method further comprises:
and under the condition of unlocking by the electronic key or the entity key, restoring the human body induction sensitivity to the default sensitivity.
In another aspect, there is provided an unlocking apparatus, including:
the first determining module is used for transmitting a first human body induction signal and determining first signal intensity under the condition that a first moment reaches the starting moment of a human body induction cycle, wherein the first signal intensity is the signal intensity of the first human body induction signal reflected back after encountering a target object;
a second determining module, configured to transmit a second human body sensing signal at a second time after the first time and determine a second signal strength, where the second signal strength is a signal strength of the second human body sensing signal reflected back after encountering the target object, and a duration between the second time and the first time is less than a length of the human body sensing period;
the face recognition module is used for carrying out face recognition on the target object if the second signal intensity is greater than the first signal intensity and the difference value between the second signal intensity and the first signal intensity is greater than or equal to a human body induction intensity threshold value;
and the unlocking module is used for executing unlocking operation if the face recognition of the target object is successful.
Optionally, the apparatus further comprises:
and a waiting module, configured to wait for a next human body sensing period if the second signal strength is less than or equal to the first signal strength, or if the second signal strength is greater than the first signal strength but a difference between the second signal strength and the first signal strength is less than the human body sensing strength threshold.
Optionally, the apparatus further comprises:
a failure frequency determining module, configured to determine, if the face recognition of the target object fails, a number of consecutive times of face recognition failure after the last adjustment of the human body sensitivity and before the first time;
a duration determining module, configured to determine a duration between the first time and a third time if the consecutive number of face recognition failures is greater than or equal to M, where the third time is a time of an mth face recognition failure that is located before the first time and starts from the first time;
and the sensitivity reduction module is used for reducing the human body induction sensitivity if the duration between the first moment and the third moment is less than or equal to a duration threshold.
Optionally, the sensitivity reduction module is specifically configured to:
increasing the human body induction intensity threshold, and/or increasing the length of the human body induction period.
Optionally, the apparatus further comprises:
and the recovery module is used for recovering the human body induction sensitivity to the default sensitivity under the condition of unlocking by the electronic key or the entity key.
In another aspect, a computer-readable storage medium is provided, in which a computer program is stored, and the computer program realizes the steps of the unlocking method when being executed by a processor.
In another aspect, a computer program product containing instructions is provided, which when run on a computer causes the computer to perform the steps of the unlocking method described above.
The technical scheme provided by the application can at least bring the following beneficial effects:
in the unlocking device that this application embodiment provided, intelligence lock can only detect the target object of motion, and can not detect static target object, has avoided the influence of wall to the human response of intelligence lock in narrow corridor to the requirement of intelligence lock to installation and use scene complexity has been reduced. Moreover, in places with large flow of people, the intelligent door lock can automatically adjust the human body induction sensitivity, avoid the intelligent door lock to be always in a triggered state, and improve the battery endurance and the service life of the intelligent door lock.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a structural block diagram of an intelligent door lock according to an embodiment of the present application;
FIG. 2 is a flow chart of an unlocking method provided by the embodiment of the present application;
fig. 3 is a flowchart of a human body dynamic sensing detection mechanism provided in an embodiment of the present application;
fig. 4 is a flowchart of a human body sensing false trigger mechanism according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of an unlocking device provided in an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.
First, the intelligent door lock 100 provided in the embodiment of the present application will be explained in detail.
Referring to fig. 1, fig. 1 is a block diagram of an intelligent door lock 100 according to an embodiment of the present disclosure. As shown, the intelligent door lock 100 includes: a controller 101, a human body sensor 102, a camera 103 and a motor 104; the controller 101 and the human body sensor 102 are connected through a signal line 1, the controller 101 and the camera 103 are connected through a signal line 2, and the controller 101 and the motor 104 are connected through a signal line 3.
The controller 101 is a control center of the intelligent door lock 100, and the controller 101 can control the human body sensing sensitivity of the human body sensor 102 through the signal line 1. Further, the human body sensor 102 may return the result of each human body sensing to the controller 101. Under the condition that a human body approaches to the intelligent door lock as a result of human body induction, the controller 101 can also control the camera 103 to perform face recognition through the signal line 2. The camera 103 may also return the face recognition result to the controller 101. In case that the face recognition result is that the face recognition is successful, the controller 101 may control the motor 104 to perform the unlocking operation through the signal line 3.
Optionally, the controller 101 may also dynamically adjust the human body sensing sensitivity of the human body sensor 102 according to the human body sensing result of the human body sensor 102 and the face recognition result of the camera 103, so as to reduce false triggering of the smart door lock 100.
It should be noted that the controller 101 may be an MCU (micro controller Unit), the human body sensor 102 may be an infrared emitter or a radar, and the camera 103 may be a common camera or a night vision camera, which is not limited in this embodiment of the present disclosure.
Those skilled in the art should understand that the above-mentioned controller 101, the human body sensor 102, the camera 103 and the motor 104 are only examples, and other existing or future controllers, human body sensors, cameras and motors may be suitable for the embodiments of the present application, and are included in the scope of the embodiments of the present application, and are incorporated herein by reference.
It should be noted that, the intelligent door lock described in the embodiment of the present application is for more clearly illustrating the technical solutions of the embodiment of the present application, and does not constitute a limitation to the technical solutions provided in the embodiment of the present application, and as a person skilled in the art knows new technologies, the technical solutions provided in the embodiment of the present application are also applicable to similar technical problems.
Next, the unlocking method provided in the embodiment of the present application will be explained in detail.
Fig. 2 is a flowchart of an unlocking method provided in an embodiment of the present application, where the method is applied to an intelligent door lock. Referring to fig. 2, the method includes the following steps.
Step 201: and under the condition that the first time reaches the starting time of the human body induction period, emitting a first human body induction signal and determining the first signal intensity, wherein the first signal intensity is the signal intensity of the first human body induction signal reflected back after encountering the target object.
In order to increase the battery endurance and the service life of the intelligent door lock, the intelligent door lock can periodically perform human body induction. That is, the intelligent door lock can detect human body induction once in each human body induction period.
When the intelligent door lock works, whether the current time reaches the starting time of the human body induction cycle or not can be determined, and if the current time reaches the starting time of the human body induction cycle, human body induction is detected. For convenience of description, the current time is referred to as a first time. That is, under the condition that the first moment reaches the start moment of the human body induction cycle, the smart door lock can emit a first human body induction signal. Because the first human body induction signal can be reflected back when meeting the target object, therefore, the intelligent door lock can also confirm the signal intensity of the human body induction signal that reflects back, regard this signal intensity as first signal intensity.
Optionally, under the condition that intelligence lock includes the controller, human sensor, camera and motor, if the first moment arrives human response cycle's the moment of beginning, the controller can control human sensor transmission first human response signal, can be reflected when first human response signal meets the target object, at this moment, human sensor receives the human response signal of reflecting back to confirm the signal strength of the human response signal of reflecting back, then feed back this signal strength to the controller. The controller determines the signal strength as a first signal strength.
Based on the above description, the human body sensor may be an infrared human body sensor or a radar human body sensor, so the first human body induction signal refers to an infrared signal or a radar signal emitted by the human body sensor.
Step 202: and emitting a second human body induction signal at a second moment after the first moment and determining second signal intensity, wherein the second signal intensity is the signal intensity of the second human body induction signal reflected back after encountering the target object, and the duration between the second moment and the first moment is less than the length of the human body induction period.
After the intelligent door lock transmits the first human body induction signal, the intelligent door lock immediately transmits a second human body induction signal under the condition that a second moment is reached after a certain time, and when the second human body induction signal meets a target object and is reflected back, the signal intensity of the reflected human body induction signal is determined, and the signal intensity is determined as the second signal intensity.
Optionally, under the condition that intelligence lock includes controller, human sensor, camera and motor, second moment after first moment, the human sensor transmission second human sensing signal of controller control, can be reflected when the human sensing signal of second meets the target object, at this moment, the human sensor receives the human sensing signal who reflects back to confirm the signal strength of the human sensing signal who reflects back, then feed back this signal strength to the controller. The controller determines the signal strength as a second signal strength.
In the installation environment of the intelligent door lock, a static obstacle or a human body may exist, and a moving obstacle or a human body may also exist, but the intelligent door lock has no meaning for detecting the static obstacle or the human body, so in order to reduce the number of false triggering, the intelligent door lock can detect only the moving obstacle or the human body without detecting the static obstacle or the human body. In order to detect moving obstacles or human bodies, the intelligent door lock can transmit a first human body induction signal at a first moment and determine first signal intensity, transmit a second human body induction signal at a second moment and determine second signal intensity, and then determine whether a target object is in a moving state or not according to the first signal intensity and the second signal intensity.
Because human body induction is carried out once in a human body induction period, the duration between the first moment and the second moment is less than the length of the human body induction period. Moreover, in order to improve the detection accuracy, the time length between the first time and the second time is not too long.
It should be noted that the duration between the first time and the second time is set by a technician in advance, and may be adjusted according to different requirements in different situations. For example, the time duration between the first time and the second time is 100 milliseconds.
Step 203: and if the second signal intensity is greater than the first signal intensity and the difference value between the second signal intensity and the first signal intensity is greater than or equal to the human body induction intensity threshold value, carrying out face recognition on the target object.
If the second signal intensity is greater than the first signal intensity, and the difference value between the second signal intensity and the first signal intensity is greater than or equal to the human body induction intensity threshold value, it is indicated that the target object is in a motion state and is approaching the intelligent door lock, the target object may need to be operated to open the intelligent door lock, at the moment, the target object can be subjected to face recognition, and therefore whether unlocking operation needs to be executed or not is determined.
Optionally, under the condition that intelligence lock includes controller, human sensor, camera and motor, the controller is determining that second signal strength is greater than first signal strength, and is greater than or equal to under the condition of human induction intensity threshold value in the difference between second signal strength and the first signal strength, and the controller controls the camera to carry out face identification to the target object.
When the face of the target object is identified, the face image of the target object is obtained, and the face image of the target object is matched with the face images in the face image library. And if the face image matched with the face image of the target object exists in the face image library, determining that the face recognition of the target object is successful. And if the face image matched with the face image of the target object does not exist in the face image library, determining that the face recognition of the target object fails.
The face images stored in the face image library are face images of users with unlocking authority. That is to say, only if the face image of the user is located in the face image library, the user has the unlocking authority of the intelligent door lock, and if the face image of the user is not located in the face image library, the user does not have the unlocking authority of the intelligent door lock. Moreover, the face images in the face image library can be acquired and stored in advance for a manager of the intelligent door lock, and the manager can add or delete part of the face images in the face image library according to different requirements.
The human body sensing threshold is set by a technician in advance, and can be adjusted according to different requirements under different conditions, and the human body sensing threshold is not limited in the embodiment of the application.
Optionally, if the second signal strength is less than or equal to the first signal strength, or the second signal strength is greater than the first signal strength but the difference between the second signal strength and the first signal strength is less than the human body induction strength threshold, waiting for the next human body induction period.
When the second signal strength is less than the first signal strength, the target object is far away from the door lock. When the second signal intensity is greater than the first signal intensity but the difference value between the second signal intensity and the first signal intensity is smaller than the human body induction intensity threshold value, it is indicated that the target object only passes through the intelligent door lock, and the operation of opening the intelligent door lock is not required, so that the human face recognition operation is not performed, and the next human body induction period is waited.
Step 204: and if the face recognition of the target object is successful, executing unlocking operation.
If the face recognition of the target object is successful, the target object is indicated to be a user with unlocking authority, and at the moment, the intelligent door lock executes unlocking operation.
Optionally, in a case that the smart door lock includes a controller, a human body sensor, a camera, and a motor, if the face recognition is successful, the controller controls the motor to perform an unlocking operation.
Optionally, if the face recognition fails, it indicates that the target object is not a user with unlocking authority, and at this time, the smart door lock does not act, and waits for the next human body induction period.
For example, assume that the first time is time C1, the second time is time C2, and the time duration between the first time and the second time is 100 milliseconds. Fig. 3 is a flowchart of a human body dynamic sensing detection mechanism according to an embodiment of the present application. As shown in fig. 3, in the case that it is determined that the time point C1 reaches the start time of the human body sensing period, the smart door lock transmits a first human body sensing signal and determines a first signal strength A1, and transmits a second human body sensing signal and determines a second signal strength A2 100 milliseconds after the time point C1, that is, at the time point C2. And judging whether the second signal intensity A2 is greater than the first signal intensity A1 or not, and whether the difference value between the second signal intensity A2 and the first signal intensity A1 is greater than or equal to a human body induction intensity threshold value delta A or not, and if the second signal intensity A2 is greater than the first signal intensity A1 and the difference value is greater than or equal to the human body induction intensity threshold value delta A, carrying out face recognition. And when the face recognition is successful, unlocking operation is executed, if the face recognition is failed, the operation is not carried out, and the next human body induction period is waited. And if the second signal intensity A2 is not greater than the first signal intensity A1 or the difference is smaller than the human body induction intensity threshold value delta A, not operating and waiting for the next human body induction period.
Optionally, under the condition that the face recognition of the target object fails, the intelligent door lock can also adjust the human body induction sensitivity, so that the number of times of false triggering is reduced, and the service life of the intelligent door lock is prolonged. That is, if the face recognition of the target object fails, the consecutive number of times of the face recognition failure after the last adjustment of the human body sensing sensitivity and before the first time is determined. And if the continuous times of face recognition failure are more than or equal to M, determining the time length between the first moment and a third moment, wherein the third moment is the moment which is before the first moment and begins from the first moment and has face recognition failure for the M time. And if the duration between the first moment and the third moment is less than or equal to the duration threshold, reducing the human body induction sensitivity.
That is, if the face recognition of the target object fails and there have been M consecutive face recognition failures this time, the time length between the time when the face recognition failed for the first time and the time when the face recognition failed for the last time in the M consecutive times is determined. And if the duration is less than or equal to the duration threshold, reducing the human body induction sensitivity.
When the continuous times of the face recognition failure are greater than or equal to M and the time between the first time and the third time is less than or equal to the time threshold, the human body induction is falsely triggered to perform face recognition, so that the times of the false triggering of the human body induction are reduced by reducing the human body induction sensitivity, and the battery endurance and the service life of the intelligent door lock can be improved.
The human body induction sensitivity refers to the detection capability of the intelligent door lock on a target object in front of the intelligent door lock, and the influence factors generally comprise a human body induction intensity threshold value and/or the length of a human body induction period. Therefore, the implementation process of reducing the human body sensing sensitivity may include: increasing the human body induction intensity threshold value and/or increasing the length of the human body induction period. That is, the ways of reducing the human body sensing sensitivity include three ways, which will be described next.
The first method is as follows: the human body sensing sensitivity can be reduced by increasing the human body sensing intensity threshold.
The intelligent door lock may have adjusted the threshold value of human body induction intensity before the first moment, and at this time, the threshold value of human body induction intensity after the last adjustment may be directly increased. Of course, the intelligent door lock may not adjust the human body induction intensity threshold before the first time, and at this time, the default human body induction intensity threshold may be directly increased.
The human body induction intensity threshold value and the detection distance of the intelligent door lock for human body induction are in inverse proportion, the detection distance corresponding to the default human body induction intensity threshold value is the farthest, at the moment, the detectable area of the intelligent door lock is the largest, and the detectable target objects are the largest. When the human response intensity threshold value of increase, the detection distance that corresponds dwindles, and the detectable region of intelligence lock dwindles, and detectable object also becomes fewly, and then has reduced the number of times that intelligence lock was triggered by mistake.
It should be noted that the default human body sensing intensity threshold is set in advance, and in different situations, the default human body sensing intensity threshold can be adjusted according to different requirements. For example, the default human body induction threshold is 100. In addition, the increment of the human body induction intensity threshold value can be preset and can be adjusted according to different requirements. For example, the human body induction intensity threshold is increased by 100.
For example, assuming that the default human body induction intensity threshold is 100 and the corresponding detection distance is 2 meters, at this time, the intelligent door lock may detect a target object in an area 2 meters ahead; when the human body induction intensity threshold value is increased to 150, the corresponding detection distance is shortened to 1.5 meters, the area range detected by the intelligent door lock is correspondingly reduced, and the target object detected by the intelligent door lock is reduced.
The second method comprises the following steps: the human body sensing sensitivity can be reduced by increasing the length of the human body sensing period.
The length of the human body induction cycle of the intelligent door lock may be adjusted before the first moment, and at the moment, the length of the human body induction cycle after the last adjustment can be directly increased. Of course, the length of the human body induction period may not be adjusted before the first time, and at this time, the length of the default human body induction period may be directly increased.
Because the length of the human body induction period is increased, when a target object passes through the intelligent door lock, the target object may not be detected in a plurality of continuous human body induction periods, so that the human body induction sensitivity is reduced, and the times of false triggering of the intelligent door lock are reduced.
It should be noted that the length of the default human body sensing period is preset, and in different situations, the length can be adjusted according to different requirements. For example, the default length of the human body sensing period is 1 second. In addition, the increment of the length of the human body induction period can be preset and can be adjusted according to different requirements. For example, the length of the human body sensing period is increased by 1 second.
For example, assuming that the default length of the human body sensing period is 1 second, when the length of the human body sensing period is increased to 2 seconds, a user passing by the smart door lock will not be detected in a plurality of consecutive human body sensing periods, thereby reducing the number of times the smart door lock is triggered by mistake.
The third method comprises the following steps: the human body induction sensitivity can be reduced by simultaneously increasing the human body induction intensity threshold and the length of the human body induction period.
For a specific implementation process, reference is made to the related descriptions in the first and second manners, which are not described herein again.
Optionally, if the continuous times of the face recognition failures are less than M, or the continuous times of the face recognition failures are greater than or equal to M but the time length between the first time and the third time is greater than the time length threshold, no action is performed, and a next human body induction period is waited.
When the continuous times of the face recognition failure are less than M, or the continuous times of the face recognition failure are greater than or equal to M but the time length between the first time and the third time is greater than the time length threshold value, it is indicated that a passing user is sensed by the intelligent door lock, and at the moment, the human body sensing sensitivity does not need to be reduced, and the next human body sensing period is waited.
It should be noted that, the above M and the duration threshold are set in advance, and in different cases, the M and the duration threshold may be adjusted according to different requirements. For example, M is 5 and the duration threshold is 10 minutes.
For example, fig. 4 is a flowchart of a human body sensing false trigger mechanism provided in an embodiment of the present application. As shown in fig. 4, when the face recognition fails, determining the number of consecutive times that the face recognition fails after the last adjustment of the human body sensing sensitivity and before the first time; if the continuous times of face recognition failure are less than 5 times, stopping the operation, and waiting for the next human body induction period, and if the continuous times of face recognition failure are more than or equal to 5 times, determining whether the time length between the 1 st face recognition failure time and the 5 th face recognition failure time in the 5 times is less than or equal to 10 minutes; if the time is more than 10 minutes, the intelligent door lock does not act, the next human body induction period is waited, if the time is less than or equal to 10 minutes, the human body induction sensitivity is reduced, the intelligent door lock is in a dormant state, and the next human body induction period is waited.
Optionally, after the sensitivity of human body sensing is reduced, the method further includes: and under the condition of unlocking by the electronic key or the entity key, the human body sensing sensitivity is restored to the default sensitivity. That is, after the user unlocks through the electronic key or the entity key, the human body induction sensitivity can be automatically restored to the default sensitivity.
Above-mentioned operation of reducing human response sensitivity is to avoid intelligent lock to be triggered by the mistake, unblank through the electronic key or the entity key when the user, if do not resume human response sensitivity to default sensitivity, when the next user unblanks, even if do not have a large amount of people to flow through before the intelligent lock, in order to be close to intelligent lock as far as, can influence user experience like this. Therefore, after the user unlocks through the electronic key or the entity key, the human body sensing sensitivity needs to be restored to the default sensitivity, so that the intelligent door lock can be ensured to identify the user and execute the unlocking operation quickly.
After the user unlocks through the electronic key or the entity key, whether the human body sensing sensitivity needs to be automatically recovered to the default sensitivity or not can be opened or closed in the user-defined setting of the intelligent door lock according to the needs, and the method is not limited in the embodiment of the application.
Based on the above description, when the human body sensing sensitivity is decreased, the human body sensing intensity threshold may be increased, and/or the length of the human body sensing period may be increased. Therefore, when the human body sensing sensitivity is restored to the default human body sensing sensitivity, the human body sensing sensitivity may be restored to the default human body sensing sensitivity, and/or the length of the human body sensing period may be restored to the default length of the human body sensing period.
In summary, in the unlocking method provided by the embodiment of the application, the intelligent door lock can only detect a moving target object, but not a static target object, so that the influence of the wall in a narrow corridor on the human body induction of the intelligent door lock is avoided, and the requirement of the intelligent door lock on the complexity of installation and use scenes is reduced. Moreover, in places with large flow of people, the intelligent door lock can automatically adjust the human body induction sensitivity, so that the intelligent door lock is prevented from being always in a triggered state, and the battery endurance and the service life of the intelligent door lock are prolonged.
Fig. 5 is a schematic structural diagram of an unlocking device provided in an embodiment of the present application, which may be implemented by software, hardware, or a combination of the two as part or all of an intelligent door lock. Referring to fig. 5, the apparatus includes: a first determination module 501, a second determination module 502, a face recognition module 503, and an unlocking module 504.
A first determining module 501, configured to transmit a first human body sensing signal and determine a first signal intensity when a first time reaches a start time of a human body sensing cycle, where the first signal intensity is a signal intensity of a first human body sensing signal reflected back after encountering a target object;
a second determining module 502, configured to transmit a second human body sensing signal at a second time after the first time and determine a second signal strength, where the second signal strength is a signal strength of the second human body sensing signal reflected back after encountering the target object, and a duration between the second time and the first time is less than a length of the human body sensing period;
a face recognition module 503, configured to perform face recognition on the target object if the second signal strength is greater than the first signal strength, and a difference between the second signal strength and the first signal strength is greater than or equal to a human body induction strength threshold;
and the unlocking module 504 is used for executing unlocking operation if the face recognition of the target object is successful.
Optionally, the apparatus further comprises:
and the waiting module is used for waiting for the next human body induction period if the second signal strength is less than or equal to the first signal strength, or the second signal strength is greater than the first signal strength but the difference value between the second signal strength and the first signal strength is less than the human body induction strength threshold value.
Optionally, the apparatus further comprises:
the failure frequency determining module is used for determining the continuous frequency of face recognition failure after the human body induction sensitivity is adjusted last time and before the first time if the face recognition of the target object fails;
the time length determining module is used for determining the time length between the first moment and a third moment if the continuous times of face recognition failure are larger than or equal to M, wherein the third moment is the moment of face recognition failure for the Mth time which is positioned before the first moment and starts from the first moment;
and the sensitivity reduction module is used for reducing the human body induction sensitivity if the duration between the first moment and the third moment is less than or equal to the duration threshold.
Optionally, the sensitivity reduction module is specifically configured to:
increasing the human body induction intensity threshold value and/or increasing the length of the human body induction period.
Optionally, the apparatus further comprises:
and the recovery module is used for recovering the human body induction sensitivity to the default sensitivity under the condition of unlocking by the electronic key or the entity key.
In summary, in the unlocking device provided in the embodiment of the present application, the intelligent door lock can only detect a moving target object, but cannot detect a static target object, so that the influence of the wall on the human body induction of the intelligent door lock in a narrow corridor is avoided, and the requirement of the intelligent door lock on the complexity of installation and use scenes is reduced. Moreover, in places with large flow of people, the intelligent door lock can automatically adjust the human body induction sensitivity, so that the intelligent door lock is prevented from being always in a triggered state, and the battery endurance and the service life of the intelligent door lock are prolonged.
It should be noted that: in practical applications, the above functions may be distributed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions. In addition, the unlocking device provided by the embodiment and the unlocking method embodiment belong to the same concept, and the specific implementation process is described in the method embodiment, which is not described again.
In some embodiments, a computer-readable storage medium is also provided, in which a computer program is stored, which when executed by a processor implements the steps of the unlocking method in the above embodiments. For example, the computer readable storage medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
It is noted that the computer-readable storage medium mentioned in the embodiments of the present application may be a non-volatile storage medium, in other words, a non-transitory storage medium.
It should be understood that all or part of the steps for implementing the above embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The computer instructions may be stored in the computer-readable storage medium described above.
That is, in some embodiments, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the steps of the unlocking method of the above embodiments.
It is to be understood that reference herein to "at least one" means one or more and "a plurality" means two or more. In the description of the embodiments of the present application, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," and the like do not denote any order or importance, but rather the terms "first," "second," and the like do not denote any order or importance.
It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data for analysis, stored data, displayed data, etc.) and signals referred to in the embodiments of the present application are authorized by the user or fully authorized by each party, and the collection, use and processing of the relevant data need to comply with relevant laws and regulations and standards in relevant countries and regions. For example, the face images referred to in the embodiments of the present application are all acquired under sufficient authorization.
The above-mentioned embodiments are provided by way of example and should not be construed as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. An intelligent door lock is characterized by comprising a controller, a human body inductor, a camera and a motor; the controller is configured to:
under the condition that a first time reaches the starting time of a human body induction cycle, controlling the human body inductor to emit a first human body induction signal and determining first signal intensity, wherein the first signal intensity is the signal intensity reflected back after the first human body induction signal meets a target object;
at a second time after the first time, controlling the human body sensor to emit a second human body sensing signal and determining a second signal intensity, wherein the second signal intensity is the signal intensity of the second human body sensing signal reflected back after encountering the target object, and the duration between the second time and the first time is less than the length of the human body sensing period;
if the second signal intensity is greater than the first signal intensity, and the difference value between the second signal intensity and the first signal intensity is greater than or equal to a human body induction intensity threshold value, controlling the camera to perform face recognition on the target object;
and if the face recognition of the target object is successful, controlling the motor to execute unlocking operation.
2. The intelligent door lock of claim 1, wherein the controller is further configured to:
if the second signal strength is less than or equal to the first signal strength, or the second signal strength is greater than the first signal strength but the difference between the second signal strength and the first signal strength is less than the human body induction strength threshold, waiting for a next human body induction period.
3. The intelligent door lock of claim 1 or 2, wherein the controller is further configured to:
if the face recognition of the target object fails, determining the continuous times of the face recognition failure after the last human body induction sensitivity adjustment and before the first moment;
if the continuous times of the face recognition failure are more than or equal to M, determining the duration between the first moment and a third moment, wherein the third moment is the moment which is before the first moment and begins from the first moment and has the M-th face recognition failure;
and if the duration between the first moment and the third moment is less than or equal to a duration threshold, reducing the human body induction sensitivity.
4. The intelligent door lock of claim 3, wherein the controller is specifically configured to:
increasing the human body induction intensity threshold, and/or increasing the length of the human body induction period.
5. The intelligent door lock of claim 3, wherein the controller is further configured to:
and under the condition of unlocking by the electronic key or the entity key, restoring the human body induction sensitivity to the default sensitivity.
6. A method of unlocking, the method comprising:
transmitting a first human body induction signal and determining first signal intensity under the condition that a first time reaches the starting time of a human body induction cycle, wherein the first signal intensity is the signal intensity of a reflected signal of the first human body induction signal after encountering a target object;
emitting a second human body induction signal at a second moment after the first moment and determining second signal intensity, wherein the second signal intensity refers to the signal intensity of the second human body induction signal reflected back after encountering the target object, and the duration between the second moment and the first moment is less than the length of the human body induction period;
if the second signal intensity is larger than the first signal intensity, and the difference value between the second signal intensity and the first signal intensity is larger than or equal to a human body induction intensity threshold value, carrying out face recognition on the target object;
and if the face recognition of the target object is successful, executing unlocking operation.
7. The method of claim 6, wherein the method further comprises:
and if the second signal strength is less than or equal to the first signal strength, or the second signal strength is greater than the first signal strength but the difference value between the second signal strength and the first signal strength is less than the human body induction strength threshold value, waiting for the next human body induction period.
8. The method of claim 6 or 7, further comprising:
if the face recognition of the target object fails, determining the continuous times of face recognition failure after the last adjustment of the human body induction sensitivity and before the first moment;
if the continuous times of the face recognition failure are more than or equal to M, determining the duration between the first moment and a third moment, wherein the third moment is the moment which is before the first moment and begins from the first moment and has the M-th face recognition failure;
and if the duration between the first moment and the third moment is less than or equal to a duration threshold, reducing the human body induction sensitivity.
9. The method of claim 8, wherein said reducing said human body sensitivity comprises:
increasing the human body induction intensity threshold, and/or increasing the length of the human body induction period.
10. The method of claim 8, wherein after said reducing said human body sensitivity, further comprising:
and under the condition of unlocking by the electronic key or the entity key, restoring the human body induction sensitivity to the default sensitivity.
CN202211028069.6A 2022-08-25 2022-08-25 Intelligent door lock and unlocking method Pending CN115424387A (en)

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