CN112647767A - Alarm method, alarm device, anti-theft door alarm method and anti-theft door - Google Patents
Alarm method, alarm device, anti-theft door alarm method and anti-theft door Download PDFInfo
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- CN112647767A CN112647767A CN202011388102.7A CN202011388102A CN112647767A CN 112647767 A CN112647767 A CN 112647767A CN 202011388102 A CN202011388102 A CN 202011388102A CN 112647767 A CN112647767 A CN 112647767A
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
- E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
- E05B45/10—Electric alarm locks with contact making inside the lock or in the striking plate by introducing the key or another object
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
- E05B2045/069—Timers therefor
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Abstract
The invention provides an alarm method, an alarm device, an anti-theft door alarm method and an anti-theft door, which solve the problem that the potential safety hazard of human bodies and property is caused by forgetting to pull out a key after people open and close the door. The method comprises the following steps: detecting whether the first component is arranged in the second component or not, and if so, detecting whether the third component reaches the first position or not; if the third component reaches the first position, timing is started, and whether the third component reaches the second position or not is detected; if the third component does not reach the second position, alarming when the timing meets the preset time, and if the third component reaches the second position, restarting timing; continuously detecting whether the third component reaches the next preset position, if not, alarming when the timing meets the preset time, and if so, restarting timing; and repeating the previous step until the detection of all the positions is completed.
Description
Technical Field
The invention relates to the technical field of door locks, in particular to an alarm method, an alarm device, an alarm method of a security door and the security door.
Background
The intelligent door lock has become a big wind gap in the intelligent household market. With the development of artificial intelligence technology, modes such as face recognition, voice recognition, sensor recognition and the like are applied to intelligent door locks in a mature way. However, no matter what unlocking mode is used, the key is basically equipped for unlocking, and the situation that people forget to pull the key is caused frequently, so that the potential safety hazard of the people and property is brought.
Disclosure of Invention
In view of the above, the invention provides an alarm method, an alarm device, an anti-theft door alarm method and an anti-theft door, which solve the problem that people forget to pull out a key after opening and closing people, thereby bringing about potential safety hazards to human bodies and property.
An alarm method, an alarm device, a security door alarm method and a security door provided by an embodiment of the present invention include: detecting whether the first component is arranged in the second component or not, and if so, detecting whether the third component reaches the first position or not; if the third component reaches the first position, timing is started, and whether the third component reaches the second position or not is detected; if the third component does not reach the second position, alarming when the timing meets the preset time, and if the third component reaches the second position, restarting timing; continuously detecting whether the third component reaches the next preset position, if not, alarming when the timing meets the preset time, and if so, restarting timing; and repeating the previous step until the detection of all the positions is completed.
In an embodiment of the present invention, after detecting whether the first component is placed in the second component, the method further includes: and if the first component is arranged in the second component and the third component is not detected, timing is started, and an alarm is given when the timing meets the preset time.
In one embodiment of the present invention, the method further includes: and detecting whether the first component is arranged in the second component in real time, and if not, stopping timing.
An alarm device comprising: the detection module is configured to detect whether the first component is placed in the second component and detect whether the third component reaches a preset position; the timing module is configured to start timing when the first component is placed in the second component and the third component reaches a preset position; and if the third part reaches the next preset position from the last preset position, restarting timing. And the alarm module is configured to give an alarm when the timing meets the preset time.
In an embodiment of the present invention, the timing module is further configured to: if the first part is placed in the second part and the third part is not detected, starting timing; and/or detecting whether the first component is arranged in the second component in real time, and if not, stopping timing.
An alarm method of a security door, comprising: detecting whether a key is inserted into the keyhole, and if so, detecting whether the main lock tongue reaches a first-stage stroke; if the main bolt reaches the first-stage stroke, timing is started, and whether the main bolt reaches the second-stage stroke is detected; if the main bolt does not reach the secondary stroke, alarming when the timing meets the preset time, and restarting timing if the main bolt reaches the secondary stroke; continuously detecting whether the main spring bolt reaches the next-stage stroke or not, if the main spring bolt does not reach the next-stage stroke, alarming when the timing meets the preset time, and if the main spring bolt reaches the next-stage stroke, restarting timing; and repeating the previous step until the detection of all the strokes is completed.
In an embodiment of the present invention, after detecting whether the key is inserted into the key hole, the method further includes: and if the key is inserted into the keyhole and the main bolt is not detected, timing is started, and an alarm is given when the timing meets the preset time.
In one embodiment of the present invention, the method further includes: and detecting whether the key is inserted into the key hole in real time, and if not, stopping timing.
A security door, comprising: the door lock comprises a key hole, a lock cylinder and a main bolt; the first detection device is arranged in the lock cylinder and is used for detecting whether a key is inserted into the key hole or not; the at least two second detection devices are respectively embedded in the holes of the side strips on the door frame of the anti-theft door, and the at least two second detection devices are respectively used for detecting the stroke of each stage of the main bolt; the timing device is connected with the first detection device and the second detection device and is used for calculating the time of inserting the key into the key hole and/or the time of stopping the main lock tongue at each stage of stroke; and the alarm device is connected with the timing device and is used for giving an alarm when the timing meets the preset time.
In one embodiment of the present invention, the first detecting means and/or the second detecting means is a photogate.
The embodiment of the invention provides an alarm method, an alarm device, a security door alarm method and a security door, wherein the alarm method comprises the following steps: detecting whether the first component is arranged in the second component or not, and if so, detecting whether the third component reaches the first position or not; if the third component reaches the first position, timing is started, and whether the third component reaches the second position or not is detected; if the third component does not reach the second position, alarming when the timing meets the preset time, and if the third component reaches the second position, restarting timing; continuously detecting whether the third component reaches the next preset position, if not, alarming when the timing meets the preset time, and if so, restarting timing; and repeating the previous step until the detection of all the positions is completed. The invention can realize the delayed alarm of the key forgetting to pull out by the method, can adapt to different habits of leading the lock tongue to extend out in the first stage and extend out in the second stage when the user locks reversely, has strong universality, and improves the personal and property safety.
Drawings
Fig. 1 is a schematic flow chart of an alarm method according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an alarm device according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of an alarm method according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
fig. 1 is a schematic flow chart of an alarm method according to an embodiment of the present invention.
As shown in fig. 1, the alarm method of the present invention includes,
and step S01, detecting whether the first component is arranged in the second component, and if so, detecting whether the third component reaches the first position. It is first detected whether the first component has been placed in the second component and, if the first component has been placed in the second component, it is started to detect whether the third component has reached the first position. If the result of the detection is that the first component is not placed in the second component, the alarm device does not need to be activated and the subsequent steps do not have to be performed.
And step S02, if the third component reaches the first position, starting timing, and detecting whether the third component reaches the second position. If the third component reaches the first position, the timer connected with the detection device at the first position starts to count time, and whether the third component reaches the second position is detected.
And step S03, if the third component does not reach the second position, alarming when the timing meets the preset time, and if the third component reaches the second position, restarting the timing. When the third part is detected to reach the second position, the timer connected with the detection device at the first position stops counting and returns to zero, and the timer connected with the detection device at the second position starts counting. When it is not detected that the third part has reached the second position, the timer connected to the detecting device at the first position counts for a predetermined time, for example, one minute, and the alarm device gives an alarm to remind the user to separate the first part and the second part in time.
And step S04, continuously detecting whether the third component reaches the next preset position, if the third component does not reach the next preset position, alarming when the timing meets the preset time, and if the third component reaches the next preset position, restarting timing. When the third part reaches the second position, a timer connected with the detection device at the second position starts to time, and simultaneously detects whether the third part reaches the third position, if the third part does not reach the third position, the timer connected with the detection device at the second position times to a preset time, for example, the time is up to one minute, the alarm device gives an alarm to remind a user of separating the first part from the second part in time; and if the third component reaches the third position, the timer connected with the detection device at the second position stops timing and returns to zero, and the timer connected with the detection device at the third position starts timing. Repeating the step, after the timer at the current position starts to time, detecting whether the third part reaches the next preset position from the current position, if the third part reaches the next preset position from the current position, stopping the time counting of the timer at the current position, and starting the time counting of the timer at the next preset position; if the third part does not reach the next preset position from the current position, the timer at the current position continues to count until the preset time is reached, for example, one minute is counted up, and then the alarm device gives an alarm to remind the user to separate the first part from the second part in time.
And step S05, repeating the previous step until the detection of all the positions is completed. Step S04 is repeated until the detection of all the positions is completed. When the third part reaches the last preset position, the timer at the last preset position stops timing, the timer at the last preset position starts timing, whether the third part reaches the next preset position does not need to be detected, the preset time is timed to be up by the timer, for example, the timing is up to one minute, and the alarm device gives an alarm to remind a user of separating the first part from the second part in time.
In addition to the above steps S01 to S05, the alarm method of the present invention further includes, after detecting whether the first component is placed in the second component: step S06: and if the first component is arranged in the second component and the third component is not detected, timing is started, and an alarm is given when the timing meets the preset time. Detecting whether the first part is arranged in the second part or not, if the first part is arranged in the second part, detecting the third part, if the third part is not detected, starting timing by a timer connected with a detection device in the second part, and if the third part is not detected within a preset time range, sending an alarm by an alarm device to remind a user of separating the first part from the second part in time when the timing reaches the preset time; if the third component is detected during the time when the timer connected to the detecting means in the second component starts counting but does not reach the preset time, the steps S01 to S05 are performed.
In the execution process of the above-mentioned step 01 to step S06, it is detected in real time whether the first component is placed in the second component, and if not, the timing is stopped. While the step 01 to the step S06 are being performed, it is detected once at intervals of a preset time period whether the first part is still placed in the second part, and if it is detected that the first part is not placed in the second part any more during the step 01 to the step S06, the timing is stopped and the alarm is not triggered any more.
The invention can realize the delayed alarm of the key forgetting to pull out by the method, can adapt to different habits of leading the lock tongue to extend out in the first stage and extend out in the second stage when the user locks reversely, has strong universality, and improves the personal and property safety.
Example two:
fig. 2 is a schematic structural diagram of an alarm device according to an embodiment of the present invention.
As shown in fig. 2, the alarm device 100 of the present invention includes: detection module 10, timing module 20, alarm module 30. Wherein the detection module 10 is configured to detect whether the first component is placed in the second component and whether the third component reaches a preset position; the timing module 20 is configured to start timing when the first part is placed in the second part and the third part reaches a preset position; and if the third part reaches the next preset position from the last preset position, restarting the timing. The alarm module 30 is configured to issue an alarm when the timer expires a preset time. The detecting module 10 may include a first detecting unit and a plurality of second detecting units, where the plurality of second detecting units respectively correspond to one position, that is, each second detecting unit detects whether the third component reaches d its corresponding position. The timing module 10 may include a first timing module and a plurality of second timing modules, the first timing module is configured to time in the second component, and the plurality of second timing modules respectively correspond to one position, that is, each second timing module calculates time at the corresponding position; in addition, the timing module 10 can be one, and the whole process is uniformly timed. The first detection unit detects whether the first part is arranged in the second part, if so, the second detection unit corresponding to the first position detects whether the third part reaches the first position, if so, the timing module 20 starts timing, and the second detection unit corresponding to the second position detects whether the third part reaches the second position; if the third component does not reach the second position, when the time counted by the timing module 20 meets the preset time, the alarm module 30 alarms, and if the third component reaches the second position, the timing module 20 restarts timing; continuing to detect, detecting whether the third component reaches the next preset position by the second detection unit at the next preset position, if the third component does not reach the next preset position, when the timing of the timing module 20 meets the preset time, alarming by the alarming module 30, and if the third component reaches the next preset position, restarting timing by the timing module 20; and repeating the previous step until the detection of all the positions is completed.
The timing module 20 is further configured to: if the first part is placed in the second part and the third part is not detected, timing is started. If the first detection unit detects that the first component is placed in the second component and all the second detection units do not detect the third component, the timing module 20 starts timing, and when the timing meets the preset time, the alarm module 30 gives an alarm. The first detection unit detects whether the first part is arranged in the second part, if the first part is arranged in the second part and all the second detection units detect the third part, if the third part is not detected, the timing module 20 starts timing, and if all the second detection units do not detect the third part within a preset time range, when the timing of the timing module 20 reaches the preset time, the alarm module 30 gives an alarm to remind a user to separate the first part and the second part in time; if the second detecting unit detects the third component during the time of the timing module 20 but not reaching the preset time, the detecting process described in the previous paragraph is repeated.
The timing module 20 is further configured to: and detecting whether the first component is arranged in the second component in real time, and if not, stopping timing. The first detection unit detects whether the first component is still placed in the second component once every preset time interval, and if the first detection unit detects that the first component is not placed in the second component any more in the timing process of the timing module, the timing module 20 stops timing and does not trigger the alarm module 30 to alarm any more.
Example three:
fig. 3 is a schematic flow chart of an alarm method according to another embodiment of the present invention.
As shown in fig. 3, the alarm method of the security door of the present invention includes:
and S001, detecting whether the key is inserted into the keyhole, and if so, detecting whether the main bolt reaches a first-stage stroke. Firstly, whether a key is placed in a key hole or not is detected, and if the key is placed in the key hole, whether the main bolt reaches a primary stroke or not is detected. If the key is not placed in the keyhole as a result of the detection, the alarm device does not need to be activated and subsequent steps do not need to be performed.
And S002, if the main bolt reaches the first-stage stroke, timing is started, and whether the main bolt reaches the second-stage stroke is detected. And if the main bolt reaches the first-stage stroke as a detection result, a timer connected with the detection device at the first-stage stroke starts to time, and whether the main bolt reaches the second-stage stroke is detected.
And step S003. When the main bolt is detected to reach the second-stage stroke, the timer connected with the detection device at the first-stage stroke stops timing and returns to zero, and the timer connected with the detection device at the second-stage stroke starts timing. When the main bolt is not detected to reach the second-stage stroke all the time, a timer connected with the detection device at the first-stage stroke counts for a preset time, for example, the timer counts for one minute, and then the alarm device gives an alarm to remind a user to pull out the key in time.
And step S004, whether the main bolt reaches the next-stage stroke or not is continuously detected, if the main bolt does not reach the next-stage stroke, an alarm is given when the timing meets the preset time, and if the main bolt reaches the next-stage stroke, the timing is restarted. When the main bolt reaches the second-stage stroke, a timer connected with the detection device at the second-stage stroke starts to time, and simultaneously detects whether the main bolt reaches the third-stage stroke, if the main bolt does not reach the third-stage stroke, the timer connected with the detection device at the second-stage stroke times to a preset time, for example, the time is up to one minute, the alarm device sends out an alarm to remind a user of pulling out a key in time; and if the main bolt reaches the third-stage stroke, the timer connected with the detection device at the second-stage stroke stops timing and returns to zero, and the timer connected with the detection device at the third-stage stroke starts timing. Repeating the step, after the timer at the current position starts to time, detecting whether the main bolt reaches the next stroke from the current stroke, if the main bolt reaches the next stroke from the current stroke, stopping the time by the timer at the current stroke, and starting the time by the timer at the next stroke; if the main bolt does not reach the next travel from the current travel, the timer of the current travel continues to count time until the preset time is reached, for example, one minute is counted up, and at the moment, the alarm device gives an alarm to remind the user to pull out the key in time.
And step S005, repeating the previous step until the detection of all the strokes is completed. And repeating the previous step until the detection of all the positions is completed. Step S004 is repeated until the detection of all the positions is completed. When the main bolt reaches the last stroke, the timer at the penultimate stroke stops timing, the timer at the last stroke starts timing, whether the main bolt reaches the next stroke is not required to be detected, the timer is only required to count for the preset time, for example, one minute is counted, and the alarm device sends out an alarm to remind a user of pulling out the key in time.
In addition to the above steps S001 to S005, the alarm method of the present invention further includes, after detecting whether the key is inserted into the keyhole, the steps of: step S006: and if the key is inserted into the keyhole and the main bolt is not detected, timing is started, and an alarm is given when the timing meets the preset time. Detecting whether a key is inserted into a keyhole, if the key is inserted into the keyhole, detecting a main lock tongue at the same time, if the main lock tongue is not detected, starting timing by a timer connected with a detection device in the keyhole, if the main lock tongue is not detected in a preset time range, and if the timing reaches the preset time, sending an alarm by an alarm device to remind a user to pull out the key in time; if the main bolt is detected in the process that the timer connected with the detection device in the key hole starts counting but does not reach the preset time, the steps S001 to S005 are executed.
In the execution process of the above steps S001 to S006, whether the key is inserted into the keyhole is detected in real time, and if not, the timing is stopped. While the steps S001 to S006 are performed, it is detected whether a key is inserted into the keyhole every a predetermined time period, and if it is detected that the key is not in the keyhole during the steps S001 to S006, the timing is stopped and the alarm is not triggered.
Example four:
the application a security door, include: the door lock comprises a door lock body, a first detection device, a second detection device, a timing device and an alarm device, wherein the door lock body comprises a key hole, a lock cylinder and a main lock tongue; the first detection device is arranged in the lock cylinder and is used for detecting whether the key is inserted into the key hole or not; the second detection devices comprise at least two second detection devices which are respectively embedded in holes of side strips on the door frame of the anti-theft door, wherein the at least two second detection devices are respectively used for detecting the stroke of each stage of the main bolt; the timing device is connected with the first detection device and the second detection device and is used for calculating the time of inserting the key into the keyhole and/or the time of stopping the main lock tongue at each stage of stroke; the alarm device is connected with the timing device and is used for giving an alarm when the timing meets the preset time.
When the anti-theft door is reversely locked, firstly, a user inserts a key into a key hole, a first detection device arranged in a lock cylinder can detect the key, then the user starts to rotate the key in the forward direction to twist a main lock tongue, after the main lock tongue stretches out and draws back at one stage, the lock tongue can reach a second detection device, the second detection device starts to time, and at the moment, if the first detection device always detects that the key stays in the key hole and the second detection device times for one minute, the door lock automatically alarms to remind the user to pull out the key; if the user needs the main bolt to be in two-stage extension, after the main bolt continuously travels from the first-stage stroke to the second detection device when the second-stage stroke reaches the second detection device, the timing at the first-stage stroke is reset and the timing device at the second-stage stroke is used for starting timing, and when the timing reaches the preset time, for example, one minute, the alarm device alarms after the time reaches.
When the lock is unlocked, a user firstly inserts a key into the key hole, the first detection device arranged in the lock cylinder detects the key, then the user starts to rotate the key reversely to twist the main lock bolts, the main lock bolts sequentially exit the detection range of all the second detection devices, the timing device in the key hole starts to time after the second detection devices cannot detect the main lock bolts, and the alarm device alarms when the first detection device detects that the key is still in the key hole and the timing reaches the preset time.
It will be appreciated that the first and/or second sensing means is a photogate, including a miniature photogate. In addition, the first detection device and the second detection device can also be other detection equipment, and the specific types of the first detection device and the second detection device are not limited in the invention.
No matter be ordinary lock or intelligent lock at present, all be equipped with the key and unblank, detect the stroke of spring bolt through the photoelectricity door and judge whether the method of reporting to the police, can realize the time delay warning that the key forgotten to extract, make the spring bolt one-level stretch out and the different custom that the second grade stretches out when also can adapt to the user and counter lock, the commonality is strong.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.
Claims (10)
1. An alarm method, comprising:
detecting whether the first component is arranged in the second component or not, and if so, detecting whether the third component reaches the first position or not;
if the third component reaches the first position, timing is started, and whether the third component reaches the second position or not is detected;
if the third component does not reach the second position, alarming when the timing meets the preset time, and if the third component reaches the second position, restarting timing;
continuously detecting whether the third component reaches the next preset position, if not, alarming when the timing meets the preset time, and if so, restarting timing;
and repeating the previous step until the detection of all the positions is completed.
2. The alarm method of claim 1, further comprising, after detecting whether the first component is disposed within the second component:
and if the first component is arranged in the second component and the third component is not detected, timing is started, and an alarm is given when the timing meets the preset time.
3. The alarm method according to claim 1, further comprising: and detecting whether the first component is arranged in the second component in real time, and if not, stopping timing.
4. An alarm device, comprising:
the detection module is configured to detect whether the first component is placed in the second component and detect whether the third component reaches a preset position;
the timing module is configured to start timing when the first component is placed in the second component and the third component reaches a preset position; if the third part reaches the next preset position from the last preset position, timing is restarted;
and the alarm module is configured to give an alarm when the timing meets the preset time.
5. The alarm device of claim 4, wherein the timing module is further configured to:
if the first part is placed in the second part and the third part is not detected, starting timing; and/or
And detecting whether the first component is arranged in the second component in real time, and if not, stopping timing.
6. An alarm method for a security door, comprising:
detecting whether a key is inserted into the keyhole, and if so, detecting whether the main lock tongue reaches a first-stage stroke;
if the main bolt reaches the first-stage stroke, timing is started, and whether the main bolt reaches the second-stage stroke is detected;
if the main bolt does not reach the secondary stroke, alarming when the timing meets the preset time, and restarting timing if the main bolt reaches the secondary stroke;
continuously detecting whether the main spring bolt reaches the next-stage stroke or not, if the main spring bolt does not reach the next-stage stroke, alarming when the timing meets the preset time, and if the main spring bolt reaches the next-stage stroke, restarting timing;
and repeating the previous step until the detection of all the strokes is completed.
7. The door lock alarm method according to claim 6, further comprising, after detecting whether the key is inserted into the key hole:
and if the key is inserted into the keyhole and the main bolt is not detected, timing is started, and an alarm is given when the timing meets the preset time.
8. The door lock warning method according to claim 6, further comprising: and detecting whether the key is inserted into the key hole in real time, and if not, stopping timing.
9. A security door, comprising:
the door lock comprises a key hole, a lock cylinder and a main bolt;
the first detection device is arranged in the lock cylinder and is used for detecting whether a key is inserted into the key hole or not;
the at least two second detection devices are respectively embedded in the holes of the side strips on the door frame of the anti-theft door, and the at least two second detection devices are respectively used for detecting the stroke of each stage of the main bolt;
the timing device is connected with the first detection device and the second detection device and is used for calculating the time of inserting the key into the key hole and/or the time of stopping the main lock tongue at each stage of stroke;
and the alarm device is connected with the timing device and is used for giving an alarm when the timing meets the preset time.
10. The security door of claim 9, wherein said first and/or second detection means is a photoelectric door.
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| CN202011388102.7A CN112647767B (en) | 2020-12-01 | 2020-12-01 | Alarm method, alarm device, anti-theft door alarm method and anti-theft door |
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| CN202011388102.7A CN112647767B (en) | 2020-12-01 | 2020-12-01 | Alarm method, alarm device, anti-theft door alarm method and anti-theft door |
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| CN201138508Y (en) * | 2007-12-14 | 2008-10-22 | 平步尘 | Alarming device preventing forgetting key |
| CN204139759U (en) * | 2014-10-14 | 2015-02-04 | 吕夏清 | Security door key is forgotten to pull out prompting and locking system |
| CN205121832U (en) * | 2015-10-14 | 2016-03-30 | 阜阳师范学院 | Antitheft system used for door lock |
| CN205857943U (en) * | 2016-08-08 | 2017-01-04 | 卓有惟 | Whether a kind of automatic decision door key is from keyhole extracting apparatus |
| CN206111025U (en) * | 2016-10-06 | 2017-04-19 | 辽宁石油化工大学 | Prevent to leave behind many functional safety door of key |
| CN207033116U (en) * | 2017-08-07 | 2018-02-23 | 深圳信息职业技术学院 | A kind of fully-automatic intelligent family door-locking system |
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| CN112647767B (en) | 2021-07-23 |
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