CN212359371U - Automatic lock reminding system - Google Patents
Automatic lock reminding system Download PDFInfo
- Publication number
- CN212359371U CN212359371U CN201922165299.7U CN201922165299U CN212359371U CN 212359371 U CN212359371 U CN 212359371U CN 201922165299 U CN201922165299 U CN 201922165299U CN 212359371 U CN212359371 U CN 212359371U
- Authority
- CN
- China
- Prior art keywords
- motor
- current
- locking
- lock
- door lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The utility model provides an automatic door lock locking reminding system, which detects the working current of a motor through a current sensor and detects the rotation angle of the motor through an angle sensor; if the current of the motor is within the range of the locking working current and the motor rotates by a set angle, sending a normal locking prompt; or if the current of the motor is larger than the locking working current range and the motor does not rotate, an unlocking prompt is sent; or if the current of the motor is larger than the preset working current range of the motor lock and the motor rotates by a set angle, a false lock prompt is sent. The utility model discloses a working condition that detects the motor judges the state of locking, can distinguish normally to lock and false lock, and the signal that stretches out that colludes earlier than detecting main spring bolt and/or world moreover can in time send out warning information.
Description
Technical Field
The utility model belongs to the technical field of automatic lock and specifically relates to an automatic lock warning system that locks.
Background
After the automatic door lock is closed, the motor drives the lock tongue or the top and bottom hook to extend out, so that automatic locking is realized, and great convenience is brought. However, if the door is not closed properly or the door is deformed, the locking problem such as unlocking or false locking may occur. If the locking problem occurs and the user does not know, potential safety hazards exist.
Disclosure of Invention
The utility model aims at providing an automatic lock warning system that locks detects the locking state of automatic lock, sends warning information.
The utility model provides an automatic lock reminding system that locks, including processing controller, motor drive circuit, current sensor, angle sensor, reminiscences, drive mechanism, main spring bolt and/or world collude, wherein, motor drive circuit, current sensor, angle sensor, reminiscences are connected with processing controller electricity respectively, processing controller passes through motor drive circuit control motor and rotates, and then drive main spring bolt and/or world through drive mechanism and collude and stretch out and realize locking, current sensor detects motor operating current and sends processing controller, angle sensor detects motor turned angle and sends processing controller; and the processing controller controls the reminder to send out reminding information according to the motor working current detection information and the motor rotation angle detection information.
Optionally, the preset motor locking working current range includes a preset motor locking working current setting range when the door lock leaves a factory, or a test range for testing and storing the motor locking working current in the door lock installation process. The preset motor locking rotation angle threshold comprises a preset motor rotation angle setting range within which the motor drives the main lock tongue and/or the top and bottom hook to completely extend out when the door lock leaves a factory, or a motor rotation angle testing range within which the motor drives the main lock tongue and/or the top and bottom hook to completely extend out is tested and adjusted in the door lock installation process.
The automatic door lock can also test and store the motor current test range in the unlocked state in the installation process, and further judge the unlocked state through the motor current.
The automatic door lock can also test and store the motor current test range or current change characteristics in the false locking process in the installation process, and further judge the false locking state through the motor current.
Further, the reminder is arranged on the inner panel and/or the outer panel of the automatic door lock to remind the locking state of the automatic door lock.
Furthermore, the reminding system also comprises a human body sensor arranged on an indoor panel or an outdoor panel, the automatic door lock judges that the user is in the door or outside the door according to a human body signal detected by the human body sensor, and the automatic door lock respectively controls the indoor reminder or the outdoor reminder to send reminding information.
The reminding system also comprises a wireless communication module, and the automatic door lock sends locking state information to the mobile phone of the user through the wireless communication module.
The utility model detects the locking state of the automatic door lock by combining the working current and the rotation angle of the motor, and if the current of the motor is in the normal locking working range and the motor rotates the locking set angle, the motor is judged to drive the main lock tongue and/or the ground hook to extend out to realize normal locking; if the current of the motor exceeds the normal locking working range and the rotating angle is smaller than the locking set threshold value, judging that the motor does not drive the main bolt and/or the top and bottom hook to extend out and is not locked; if the current of the motor exceeds the normal locking working range and the motor rotates the locking set angle, the motor is judged to drive the main bolt and/or the top and bottom hook to forcibly extend out to cause false locking. The user passes in and out the door and is in a hurry relatively usually, because main spring bolt and/or collude in the sky and stretch out and be the motor drive, the utility model discloses a working condition judgement locking state that detects the motor can distinguish normally to lock and false lock, and earlier than the signal that stretches out that detects main spring bolt and/or collude in the sky, also the time that also finds the problem of locking is earlier, can in time send out warning information, and scene strong adaptability.
Furthermore, the utility model discloses can also be through setting up the locking state that current sensor and angle sensor detected automatic lock on door lock panel, avoid setting up sensor detection main spring bolt and/or colluding in the lock body and stretch out and receive the restriction of lock body space, simultaneously, can not change the lock body through only changing door lock panel, upgrade the automatic lock of electron to mechanical lock.
The technical solutions of the present invention will be described with reference to the following examples.
Drawings
Fig. 1 is a schematic block diagram of an automatic door lock structure.
Fig. 2 is a block diagram showing the structure of the automatic door lock locking reminding system of the present invention.
Detailed Description
In the schematic block diagram of the automatic door lock structure shown in fig. 1, the automatic door lock includes a processing controller, a motor driving circuit, a transmission structure, a main bolt and/or a top and bottom hook, and a peripheral detector, wherein the processing controller controls the motor to rotate through the driving circuit according to a locking control signal detected by the peripheral detector, so as to control the extension and retraction of the main bolt and/or the top and bottom hook. According to different lock bodies, the lock body can be divided into a mechanical lock body and an electronic lock body.
The automatic door lock of the mechanical lock body is characterized in that a motor is arranged on a door lock panel, a lock cylinder is used as a transmission structure, the motor drives the lock cylinder, and then a lock cylinder shifting head controls the extension and retraction of a main lock tongue and/or a top and bottom hook, so that the lock body does not need to be replaced. The periphery detector is a locking button arranged on the door lock panel, a user inputs a locking control signal through the locking button, and the automatic door lock controls automatic locking according to the locking button signal input by the user.
The automatic door lock of the electronic lock body is characterized in that a motor drives a main bolt and/or a top and bottom hook to stretch and retract through a rotating shaft gear and a transmission gear. The peripheral detector is a door closing sensor arranged in the electronic lock body, and the automatic door lock controls automatic locking according to a door closing signal detected by the door closing sensor.
The processing controller can be a logic judgment control circuit, and can also comprise an MCU, a CPU or a singlechip and the like.
In fig. 2 the utility model discloses in automatic lock warning system structure sketch map of locking, including processing controller, motor drive circuit, current sensor, angle sensor, reminiscences, drive mechanism, main spring bolt and/or the world colludes, wherein, peripheral detector, motor drive circuit, current sensor, angle sensor, reminiscences are connected with the processing controller electricity respectively, and processing controller passes through motor drive circuit control motor and rotates, and then colludes through drive mechanism drive main spring bolt and/or the world and stretch out the realization and lock.
The current sensor detects the working current of the motor, and the angle sensor detects the rotation angle of the motor; the processing controller judges the locking state of the automatic door lock according to the working current of the motor and the rotation angle of the motor: if the current of the motor is within the preset motor locking working current range and the rotation angle of the motor is not smaller than the preset motor locking rotation angle threshold, judging normal locking; if the current of the motor is larger than the preset motor locking working current range and the rotation angle of the motor is smaller than the preset motor locking rotation angle threshold, judging that the motor is unlocked; and if the motor current is larger than the preset motor locking working current range and the motor rotation angle is not smaller than the preset motor locking rotation angle threshold, judging false locking.
The current sensor is arranged in the motor circuit and used for detecting the working current of the motor. The working current of the motor is in direct proportion to the load, for an automatic door lock with a certain parameter setting motor and lock body structure, the working current when the motor drives the main lock tongue and/or the top and bottom hook to extend out to realize locking should be within a fixed range, the working current can be preset in the judgment module when the automatic door lock leaves a factory, and the automatic door lock can judge the locking state by comparing with the preset locking working current range of the motor.
Considering that the door or lock of different families has different states, such as some doors with or without top and bottom hooks, some doors generate different deformation, etc., the resistance of the motor driving the main bolt and/or the top and bottom hooks to extend to realize locking may also be changed, in order to better adapt to different door lock states, a preferable method is to test the range of the locking working current of the motor in the installation process of the door lock and store the range in the control module. The current test mode of the motor for locking the automatic door lock is started, the current sensor detects the motor working current for normally locking the door for several times, such as 3 times or 5 times of locking tests, the maximum to minimum range of the detected current is counted and stored as the judgment range of the motor locking working current. The locking working current judgment range established through the test is more accurate, and different state characteristics of different doors or lock bodies are reflected.
In the general automatic door lock, the main bolt and/or the top and bottom hook are/is fully extended to about 2 cm, and in the automatic door lock locked by the lock cylinder shifting block, the lock cylinder shifting block rotates 2 circles to push the main bolt and/or the top and bottom hook to be fully extended and locked. Obviously, the motor drives the main bolt and/or the top and bottom hook to fully extend and need to rotate a certain angle, such as 2 circles. The motor rotation angle in the locking process is detected through the angle sensor, if the motor current is within the preset motor locking working current range, and the motor rotation angle is not smaller than the preset motor locking rotation angle threshold value, the motor drives the main bolt and/or the top and bottom hook to completely extend out, and normal locking is judged. Wherein the angle sensor may comprise a stepper motor.
Obviously, the preset motor locking rotation angle threshold value may preset a motor rotation angle setting range in which the motor drives the main lock tongue and/or the top and bottom hook to completely extend when the door lock is shipped, or may test and adjust a motor rotation angle testing range in which the motor drives the main lock tongue and/or the top and bottom hook to completely extend in the door lock installation process, for example, in an upgrade process of a mechanical door lock without replacing the lock body, the preset motor locking rotation angle may be adjusted according to the completely extending length of the main lock tongue and/or the top and bottom hook of the original lock body, so that the motor can just drive the main lock tongue and/or the top and bottom hook to completely extend to realize locking, thereby preventing the motor from rotating an excessive angle, or preventing the main lock tongue and/or the top and bottom hook.
When the full-automatic lock is automatically locked, if the door frame is deformed or the door is not closed in place, the motor drives the main lock tongue and/or the top and bottom hook to extend out to meet the obstruction of the door frame, the load is increased, and the motor is forced to overcome the resistance by increasing the current. In the whole locking process, although the motor current is continuously increased to enable the motor current to exceed the preset normal locking working current range all the time, the motor still cannot rotate, namely the motor rotating angle is always smaller than the preset motor locking rotating angle threshold value, and the motor cannot be locked.
Obviously, the automatic door lock can also test the current range of the motor when the main lock tongue and/or the top and bottom hook cannot extend out in the installation process, and then judge the unlocked state according to the test range of the current of the motor. The method comprises the steps of starting an unlocked motor current test mode of the automatic door lock, blocking a main bolt and/or a top and bottom hook to prevent the main bolt and/or the top and bottom hook from extending out of a lock body, detecting the motor working current which cannot be locked for several times through a current sensor, for example, carrying out unlocking tests for 3 times or 5 times, counting the maximum to minimum range of the detected current, storing the maximum to minimum range in a judgment module, and taking the maximum to minimum range as the judgment range of the motor unlocking working current.
Further, a clock module is arranged in the automatic door lock, the locking process is detected, and if the locking failure occurs, the motor is controlled to stop within a set time, such as 3 seconds or 5 seconds, so that the long-time overload work of the motor is avoided.
When the door frame is deformed or the door is not closed in place, the main bolt and/or the top and bottom hook extend out to meet the obstruction of the door frame, the motor overcomes the obstruction of the door frame by increasing the current, and the other possible situation is that the main bolt reversely pushes the door frame to force the door to be staggered with the door frame, the door is in a virtual covering state, and meanwhile, the main bolt and/or the top and bottom hook can break away from the constraint of the door frame to completely extend out, so that a false locking state occurs.
In the false locking process, the motor current detected by the current sensor is larger than the preset motor locking working current range, and meanwhile, the motor rotation angle detected by the angle sensor is not smaller than the preset motor locking rotation angle threshold, namely, the motor rotates by the same angle as the normal locking.
It will be appreciated that during false lock, the motor current is greater than the normal lock current and less than the unlock current. And the magnitude of the motor current is in a larger fluctuation range in the false locking process, namely when locking begins, because the main bolt stretches out and is hindered by the door frame and exceeds the locking working current range, the angle sensor can not detect the motor corner, when the motor current is increased to a certain range, the main bolt pushes the door frame reversely and forces the door to stagger with the door frame, the main bolt and/or the top and bottom hook stretch out gradually, meanwhile, the angle sensor detects the motor corner, the motor current is reduced and tends to the locking working current range until the main bolt and/or the top and bottom hook stretch out completely, the motor rotation angle is not less than the preset motor locking corner threshold value, the motor current is 0, and false locking occurs.
The normal locking and the false locking are performed, although the rotating angle of the motor is the same, the current of the motor driving the main bolt and/or the heaven and earth hook in the process of completely extending is different, the current of the motor in the normal locking is within the preset motor locking working current range and is smaller than that of the false locking, and the current of the motor in the false locking is beyond the preset motor locking working current range.
The automatic door lock can test and store the motor current range or current change characteristics of the false locking process in the installation process, and then judge the false locking state through the motor current. The current test mode of the motor for opening the false lock of the automatic door lock is that firstly, the automatic door lock starts to be locked under the condition that the door cannot be closed to a certain position, then the door is slowly pushed to be opened, so that the motor drives the main bolt and/or the heaven and earth hook to completely extend out, the motor working current of the false lock is detected for several times through the current sensor, for example, the false lock test for 3 times or 5 times, the maximum to minimum range or the change characteristic of the detection current is counted and stored in the judgment module to be used as the size or the change judgment range of the motor false lock working.
Further, the reminder is arranged on the inner panel and/or the outer panel of the automatic door lock to remind the locking state of the automatic door lock. The reminder comprises an LED lamp, for example, different states of locking, unlocking or false locking are prompted through different colors of the LED lamp, and different states of locking, unlocking or false locking are prompted through the speed of the flashing rhythm of the LED lamp and the like.
The reminder includes a sound generating means, such as a voice reminder via a speaker or a different beeping sound via a buzzer to remind of different states of locked, unlocked or false locked. For example, when the automatic door lock is unlocked or falsely locked, a voice reminding message of the unlocking or falsely locking is sent out through a loudspeaker on the inner door or/and the outer door panel. A combination of both acousto-optic is preferred.
Further, the automatic door lock also comprises a wireless communication module, and the automatic door lock sends locking state information to a mobile phone of a user through the wireless communication module.
Furthermore, the automatic door lock is provided with a human body sensor inside or outside the door to detect a human body signal during locking, and the processing controller judges whether the user is inside or outside the door according to the human body detection signal and respectively controls the reminder inside or outside the door to send out reminding information.
Further, the human body sensor includes a contact type sensor or a non-contact type human body sensor.
Optionally, the touch human body sensor includes a touch sensor disposed on a door lock handle inside or outside the door, and the processing controller determines that the user is inside or outside the door according to a door lock handle touch signal detected by the touch sensor when the door is closed and locked.
Optionally, the contact type human body sensor comprises a locking button arranged on an indoor panel and/or an outdoor panel, the automatic door lock controls the motor to drive the main bolt and/or the ground hook to extend out and lock according to a locking button signal input by a user, the user is positioned in the door or outside the door when the door is judged to be locked according to the locking button signal input by the user, and the door or outside reminder is controlled to send locking state reminding information respectively.
Optionally, the contact type human body sensor includes a photoelectric switch arranged on the door lock handle inside or outside the door, for example, a correlation type photoelectric switch is arranged between the handle and the panel, a light emitting tube is arranged on the door lock handle, and a receiving tube is arranged on the door lock panel corresponding to the light emitting tube. When the door is closed and locked, a user holds the handle, due to the shielding of the hand, the light of the light-emitting tube cannot irradiate the receiving tube, the photoelectric switch is not conducted and is in an off state, after the door is closed and locked, if the user leaves the door lock handle, the light between the handle and the panel is not shielded, the light of the light-emitting tube irradiates the receiving tube, and the photoelectric switch is conducted and is in an on state. And the processing controller judges whether the user is in the door or out of the door according to the change of the photoelectric switch after the door is closed in place.
Optionally, the non-contact human body sensor includes an intelligent camera, and after the intelligent camera is closed in place, the user is identified through video image analysis, for example, the intelligent camera is arranged at a certain position in a room, such as on a wall or a table, and a door zone is shot towards a door, so that the door image can be shot, or the intelligent camera is arranged on a wall where a door transverse frame or a door is located, such as on the door transverse frame or a door top wall, so that the door zone can be shot downwards. After the door is closed and locked, if the user is identified by the intelligent camera, the user is judged to be in the door, and if the user is not identified by the camera in the door, the user is judged to be out of the door.
Optionally, the non-contact human body sensor may further include a human body infrared sensor, and the processing controller determines that the user is inside or outside the door according to a human body infrared signal sensed by the human body infrared sensor when the door is closed and locked.
The motor rotation signal detected by the motor detectors such as the motor current sensor, the motor angle sensor and the like can reflect the whole continuous locking process from beginning to end of the automatic door lock, and is more detailed and comprehensive than the single-point locking signal for detecting the main bolt and/or the world hook extending through the position sensor, if the continuous process for detecting the main bolt and/or the world hook extending and locking through the position sensor needs to be provided with a plurality of position sensors, and the discontinuous locking signal is detected. The continuous detection signal can detect the interruption of the locking signal at any time, so that the locking problem can be found in time, and the intermittent signal can find the locking problem and needs a set time to wait for the detection result of the next detection signal, so that the reminding is delayed.
Claims (9)
1. The utility model provides an automatic reminding system that locks of lock, includes that processing controller, motor drive circuit, current sensor, angle sensor, reminiscences, drive mechanism, main spring bolt and/or world collude, and wherein, motor drive circuit, current sensor, angle sensor, reminiscences are connected with the processing controller electricity respectively, and processing controller passes through motor drive circuit control motor and rotates, and then colludes through drive mechanism drive main spring bolt and/or world and stretch out the realization and lock characterized by:
the current sensor detects the working current of the motor and sends the working current to the processing controller, and the angle sensor detects the rotation angle of the motor and sends the rotation angle to the processing controller;
the processing controller judges the locking state of the automatic door lock according to the working current of the motor and the rotation angle of the motor to control the reminder to send out reminding information.
2. The reminder system of claim 1, wherein: the motor working current detection information comprises a preset range of motor locking working current when the motor is delivered from a factory, or a test range of motor locking working current is tested and stored in the door lock installation process, and then the locking state is judged through the motor current.
3. The reminder system of claim 1, wherein: the angle sensor includes a stepping motor.
4. A reminder system according to claim 1 or 3, characterized in that: the motor rotation angle detection information comprises a preset motor rotation angle setting range within which a motor drives a main lock tongue and/or a top and bottom hook to completely extend when the door lock leaves a factory, or a motor rotation angle test range within which the motor drives the main lock tongue and/or the top and bottom hook to completely extend is tested and adjusted in the door lock installation process.
5. The reminder system of claim 1, wherein: the automatic door lock can also test and store the motor current test range in the unlocked state in the installation process, and further judge the unlocked state through the motor current.
6. The reminder system of claim 1, wherein: the automatic door lock can also test and store the motor current test range or current change characteristics in the false locking process in the installation process, and further judge the false locking state through the motor current.
7. A reminder system according to claim 1 or 2 or 3 or 5 or 6, characterized in that: the reminder is arranged on the inner panel and/or the outer panel of the automatic door lock.
8. The reminder system of claim 7, wherein: and a human body sensor is also arranged on the panel inside or outside the door, the automatic door lock judges whether the user is in the door or outside the door according to a human body signal detected by the human body sensor, and the reminder inside or outside the door is respectively controlled to send out reminding information.
9. The reminder system of claim 1, wherein: the reminding system also comprises a wireless communication module, and the automatic door lock sends locking state information to the mobile phone of the user through the wireless communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165299.7U CN212359371U (en) | 2019-12-06 | 2019-12-06 | Automatic lock reminding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165299.7U CN212359371U (en) | 2019-12-06 | 2019-12-06 | Automatic lock reminding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359371U true CN212359371U (en) | 2021-01-15 |
Family
ID=74138153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922165299.7U Active CN212359371U (en) | 2019-12-06 | 2019-12-06 | Automatic lock reminding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359371U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914714A (en) * | 2021-11-09 | 2022-01-11 | 惠州市昊成工控科技有限公司 | Intelligent lock door opening and closing detection method and intelligent lock |
| CN115324428A (en) * | 2022-08-10 | 2022-11-11 | 安徽信息工程学院 | Door lock state reminding control system and method |
| CN115434578A (en) * | 2022-08-05 | 2022-12-06 | 深圳市润点创新科技有限公司 | State detection method for intelligent lock |
| CN117558077A (en) * | 2024-01-10 | 2024-02-13 | 深圳市每开创新科技有限公司 | Parameter adjustment method of electronic lock, storage medium and terminal device |
-
2019
- 2019-12-06 CN CN201922165299.7U patent/CN212359371U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914714A (en) * | 2021-11-09 | 2022-01-11 | 惠州市昊成工控科技有限公司 | Intelligent lock door opening and closing detection method and intelligent lock |
| CN115434578A (en) * | 2022-08-05 | 2022-12-06 | 深圳市润点创新科技有限公司 | State detection method for intelligent lock |
| CN115434578B (en) * | 2022-08-05 | 2024-05-03 | 深圳市润点创新科技有限公司 | State detection method for intelligent lock |
| CN115324428A (en) * | 2022-08-10 | 2022-11-11 | 安徽信息工程学院 | Door lock state reminding control system and method |
| CN117558077A (en) * | 2024-01-10 | 2024-02-13 | 深圳市每开创新科技有限公司 | Parameter adjustment method of electronic lock, storage medium and terminal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212359371U (en) | Automatic lock reminding system | |
| CN111140090A (en) | Automatic lock locking state detection system | |
| CN211818716U (en) | Automatic door lock locking detection control device of mechanical lock body | |
| US20190295347A1 (en) | System and method for providing hands free operation of at least one vehicle door | |
| US6563431B1 (en) | Automatic garage door system and method | |
| CN104832027B (en) | Vehicle window control method, device and vehicle | |
| US7956721B2 (en) | Power conserving mobile transmitter | |
| WO2006101599A1 (en) | Operating system utilizing a delay-open function for a motorized barrier operator | |
| US8085129B2 (en) | Power conserving mobile transmitter used with an automated barrier operating system | |
| CN110924754A (en) | Step-by-step locking control system of automatic door lock | |
| CN110566045A (en) | Intelligent unlocking or false locking reminding system for door lock | |
| CN109281556A (en) | For detecting the system and method for the non-latching situation of closure member | |
| US20180361992A1 (en) | Vehicle lighting system | |
| CN212359370U (en) | Automatic lock reminding device that locks | |
| CN211448134U (en) | Intelligent unlocking or false locking reminding system for door lock | |
| JP2001336326A (en) | Automatic-unlocking-function-equipped device and system for opening door | |
| CN210067676U (en) | Intelligence lock reminding device that does not lock of closing door | |
| KR101934357B1 (en) | Tailgate automatic opening and lamp self-checking method interlocking smart key | |
| CN213627163U (en) | Automatic welcome door opening and closing system | |
| KR20110024915A (en) | Apparatus and method for controlling door | |
| CN212224926U (en) | Step-by-step locking control system of automatic door lock | |
| US11661787B2 (en) | Safe and lock detection system | |
| JP2002168014A (en) | Remote controller for door lock | |
| CN210067674U (en) | Intelligence lock suggestion device that locks | |
| CN207879146U (en) | A kind of intelligent window based on PLC controls |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |