CN111535673A - Intelligent door locking and opening system and control method thereof - Google Patents
Intelligent door locking and opening system and control method thereof Download PDFInfo
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- CN111535673A CN111535673A CN202010350490.3A CN202010350490A CN111535673A CN 111535673 A CN111535673 A CN 111535673A CN 202010350490 A CN202010350490 A CN 202010350490A CN 111535673 A CN111535673 A CN 111535673A
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- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000013459 approach Methods 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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Abstract
The invention relates to an intelligent lock door opening system and a control method thereof, wherein the system comprises a main controller, a touch key, a sensor and an intelligent lock control panel connected with an intelligent lock door opening structure; the touch key is used for receiving a touch signal from a user operation; the main controller is used for receiving the touch signal transmitted by the touch key to generate a control signal; the sensor is used for working according to the control signal to detect whether a human body exists in the designated area or not so as to form a detection signal, and the detection signal is input to the main controller so that the main controller controls the intelligent lock control panel to work; and the intelligent lock control panel is used for driving the intelligent lock door opening structure to work under the control of the main controller. The invention reduces misjudgment of door opening, improves safety and improves user experience.
Description
Technical Field
The invention relates to an intelligent lock, in particular to an intelligent lock door opening system and a control method thereof.
Background
At present, the intelligent lock is more and more widely applied, and most of the intelligent locks are electronic coded locks, card swiping door locks and fingerprint locks. The existing unlocking mode comprises three modes, the first mode is a mechanical mode of directly pressing a handle to open a door, but the user experience of the mode is poor, and the science and technology sense is lacked; the second is that the door is directly opened by using the capacitance touch of the inner handle, but the method is easy to have misoperation, the door can be opened by interference outside the door, and huge risks are caused; the third is to awaken the inner handle through PIR (human infrared sensing), detect the human position again closely, the automatic door lock that opens the door when people are close to the sensing handle, this is a mode that the segmentation response mode opened the door, though can judge partial malfunction under certain removal detection condition, but the health is close to when the door, for example also can cause the mistake to open the door when cat eye looks over the gate state, the security is not high.
Therefore, it is necessary to design a new system to reduce misjudgment of door opening, improve safety, and improve user experience.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an intelligent door locking and opening system and a control method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: an intelligent lock door opening system comprises a main controller, a touch key, a sensor and an intelligent lock control panel connected with an intelligent lock door opening structure; the touch key is used for receiving a touch signal from a user operation; the main controller is used for receiving the touch signal transmitted by the touch key to generate a control signal; the sensor is used for working according to the control signal to detect whether a human body exists in the designated area or not so as to form a detection signal, and the detection signal is input to the main controller so that the main controller controls the intelligent lock control panel to work; and the intelligent lock control panel is used for driving the intelligent lock door opening structure to work under the control of the main controller.
The further technical scheme is as follows: the sensor includes an infrared light LED lamp.
The further technical scheme is as follows: also includes a power supply unit; and the power supply unit is used for supplying power to the main controller, the touch key and the sensor.
The further technical scheme is as follows: the intelligent lock control panel is connected with the power supply unit.
The further technical scheme is as follows: the touch key is a capacitive touch key, and the sensor is an infrared light sensor.
The invention also provides a control method of the intelligent door locking and opening system, which comprises the following steps:
initializing a touch key and a sensor;
the sensor is turned off, and the main controller and the intelligent lock control panel enter a dormant state;
the touch key receives a touch signal from user operation;
the main controller judges whether the touch signal is a valid signal;
if the touch signal is a valid signal, turning on a sensor to receive the intensity of the reflected light;
the main controller judges whether a human body approaches to the designated area or not according to the received intensity of the reflected light;
if a human body is close to the designated area, the main controller controls the intelligent lock control panel to work, the intelligent lock control panel drives the intelligent lock door opening structure to work, and the intelligent lock door opening structure performs unlocking operation.
The further technical scheme is as follows: the designated area is an area formed by enclosing the intelligent lock and the wall at a distance of 20cm to 30 cm.
The further technical scheme is as follows: the main controller judges whether a human body is close to the designated area according to the received intensity of the reflected light, and the method comprises the following steps:
the main controller calculates the variation of the received reflected light intensity;
the main controller judges whether an object shelters and moves in the designated area according to the variable quantity;
if the specified area is blocked and moved by an object, a human body approaches the specified area;
if the designated area is not blocked and moved by the object, no human body is close to the designated area.
The further technical scheme is as follows: the work of main control unit control intelligence lock control panel, the work of intelligent lock control panel drive intelligence lock structure of opening the door, before the operation of unblanking is carried out to the intelligence lock structure of opening the door, still include:
the main controller calculates the effective photoelectrons received by the sensor to obtain an effective photocurrent;
calculating the relative distance of the current sensor to the human body according to the effective photocurrent;
judging whether the position of the human body is located in the designated area or not according to the relative distance;
and if the position of the human body is located in the designated area, executing the main controller to control the intelligent lock control panel to work, driving the intelligent lock door opening structure to work by the intelligent lock control panel, and unlocking the intelligent lock door opening structure.
The further technical scheme is as follows: effective photoelectrons received by the sensor are
Wherein C is an integral capacitance, t0For initial detection of the background noise time, I0For the initial detection of the intensity of light, u, detected during the background noise0Measuring an integral voltage during initial detection of the bottom noise; t is t1For the effective signal time detected by the sensor, I1Is the light intensity, u, of the effective signal detected by the sensor1The end integration voltage is measured at the time of a valid signal detected by the sensor, and the valid signal comprises a signal left after removing the environmental noise.
Compared with the prior art, the invention has the beneficial effects that: according to the intelligent lock door opening mechanism, the touch key is used for sensing the first closing, the sensor is used for detecting the second closing, when the touch key senses that a user operates, the main controller starts the sensor to detect whether a human body is near the intelligent lock, and only when the touch key and the sensor sense the information that the user wants to open the door, the intelligent lock control board can be controlled to drive the intelligent lock door opening structure to open the door, so that misjudgment is reduced, the safety is improved, and the user experience is improved.
The invention is further described below with reference to the accompanying drawings and specific embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of an intelligent door locking and opening system according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a control method of an intelligent door locking and opening system according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of an intelligent door locking and unlocking system according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
As shown in fig. 1-3, the intelligent door lock opening system provided in this embodiment can be applied to the door opening control process of an intelligent door lock, and solves the safety problem caused by the malfunction of door opening due to interference caused by single capacitance sensing. The multiple authentication using the sensor 30 provides sufficient convenience and reliability to the user while ensuring safety.
Referring to fig. 1, the intelligent lock door opening system includes a main controller 10, a touch button 20, a sensor 30, and an intelligent lock control board 40 connected to an intelligent lock door opening structure; a touch key 20 for receiving a touch signal from a user operation; a main controller 10 for receiving the touch signal transmitted from the touch key 20 to generate a control signal; the sensor 30 is used for working according to the control signal to detect whether a human body exists in the designated area or not so as to form a detection signal, and the detection signal is input to the main controller 10 so that the main controller 10 controls the intelligent lock control panel 40 to work; and the intelligent lock control board 40 is used for driving the intelligent lock door opening structure to work under the control of the main controller 10.
In the present embodiment, the model of the main controller 10 is, but not limited to, CY8C4025 LQI.
Set up main control unit 10 and regard as the core control device of whole intelligent lock system of opening door, carry out the response of first pass with the help of touch button 20, carry out the detection of second pass by sensor 30 again, when guaranteeing that someone is requesting the operation of opening the door, just can control intelligent lock control panel 40 drive intelligent lock structure of opening the door and open the door, stretch into the touch button 20 that handle the inside touch corresponds through the hand, with this start main control unit 10, whether there is the human body near intelligent lock by main control unit 10 start sensor 30 detection, also be in the appointed area, it initiatively thinks to open the door to synthesize the information that obtains according to dual detection, thereby automatic unblank, reduce the erroneous judgement, improve the security and promote user experience again.
In one embodiment, the touch key 20 is, but not limited to, a capacitive touch key 20, and the sensor 30 is, but not limited to, an infrared light sensor 30.
In an embodiment, referring to fig. 1, the sensor is connected to an infrared LED lamp 50, and when the sensor 30 works, the infrared LED lamp 50 is started to work, so as to improve the detection accuracy of the sensor 30.
In an embodiment, the intelligent door locking and unlocking system further includes a power supply unit 60; and a power supply unit 60 for supplying power to the main controller 10, the touch key 20, and the sensor 30.
In addition, the smart lock control board 40 is connected to the power supply unit 60.
The smart lock control board 40 may be connected to an external power supply device to provide a 6V power supply for the power supply unit 60 to perform charging processing, and the power supply unit 60 provides a 3.3V power supply for the main controller 10, the touch button 20, and the sensor 30.
Foretell intelligence lock system of opening door has promoted intelligent lock user experience, and reinforcing lock science and technology is felt, has solved single electric capacity mode response because the safety problem that the malfunction that disturbs to open the door caused. The sensor 30 multiple authentication is adopted to bring sufficient convenience and reliability to the user on the premise of ensuring safety, and the mode of awakening the main controller 10 by the sensor 30 can save cost, reduce power consumption and bring better experience to the user.
Foretell intelligent lock system of opening door, through carrying out the response of first pass with the help of touch button 20, carry out the detection of second pass by sensor 30 again, sense the user when the operation when touch button 20, main control unit 10 starts sensor 30 and surveys whether there is the human body near intelligent lock, only touch button 20 and sensor 30 all sense the information that someone thought to open the door, just can control intelligent lock control panel 40 drive intelligent lock structure of opening the door and open the door, reduce the erroneous judgement, improve the security and promote user experience again.
In an embodiment, please refer to fig. 2, a control method of an intelligent door locking and unlocking system is further provided, which includes steps S110 to S170.
S110, initializing the touch key 20 and the sensor 30.
In the present embodiment, the touch key 20 and the sensor 30 are initialized to improve the accuracy of the subsequent detection.
And S120, turning off the sensor 30, and enabling the main controller 10 and the intelligent lock control board 40 to enter a dormant state.
In this embodiment, the form of the sensor 30 may be turned off by active control to ensure that the entire system enters a sleep state.
S130, the touch key 20 receives a touch signal from a user operation.
In the present embodiment, the touch signal is a signal generated by the user extending his/her hand to press the touch key 20.
S140, the main controller 10 determines whether the touch signal is a valid signal.
In this embodiment, the main controller 10 can determine whether the touch signal is a valid signal by the time when the touch signal exists, and the like, and only when the touch signal is valid, the sensor 30 is triggered to perform infrared light detection.
If the touch signal is not the valid signal, executing the step S120;
s150, if the touch signal is a valid signal, the sensor 30 is turned on to receive the intensity of the reflected light.
In this embodiment, when it is detected that a hand is inserted into the handle to open the door, that is, the touch signal is a valid type, the main controller 10 starts the sensor 30 to detect whether a human body approaches, and the sensor 30 emits 940nm near-infrared light at a certain frequency.
S160, the main controller 10 determines whether there is a human body approaching the designated area according to the received intensity of the reflected light.
In this embodiment, the designated area is an area enclosed by the smart lock and the wall at a distance of 20cm to 30 cm.
Considering the installation position of the intelligent lock, the distance between the intelligent lock and the wall is reserved for 15 cm, the emission angle of the sensor 30 is set to be +/-30 degrees, and therefore the distance to be detected is that the distance between the door lock and the wall is l-h-ctg 30 degrees and is approximately equal to 26 cm.
In one embodiment, the step S160 may include steps S161 to S164.
S161, the main controller 10 calculates the variation of the received reflected light intensity;
s162, the main controller 10 judges whether an object is shielded and moved in the designated area according to the variable quantity;
s163, if the specified area is blocked and moved by the object, a human body approaches the specified area;
and S164, if the specified area is not blocked and moved by the object, no human body is close to the specified area.
Specifically, assuming that the LED luminous efficiency of the sensor 30 with 940nm is η, the current is I, the forward voltage is u, the absorption coefficient of the medium to the 940nm light wave is α, the light emission cone angle is θ, the reflection coefficient is τ, and at a distance of l from the sensor 30, the light intensity I received by the object light sensation with area s can be approximated as:
therefore, under the condition that the voltage, the current and the absorption coefficient are not changed, the light intensity received by the sensor 30 and reflected by the sensor is in direct proportion to the reflection area, the reflection coefficient and the reflectivity, and the light intensity received by the sensor 30 and reflected by the sensor 30 are in inverse proportion to the fourth power of the distance between the sensor 30, so that whether an object is shielded and moved can be judged only by calculating the variation of the received reflected light intensity, and meanwhile, the shielded object distance is estimated.
S170, if a human body is close to the designated area, the main controller 10 controls the intelligent lock control panel 40 to work, the intelligent lock control panel 40 drives the intelligent lock door opening structure to work, and the intelligent lock door opening structure performs unlocking operation;
if no human body is close to the designated area, the step S120 is executed.
The control method of the intelligent door lock opening system improves user experience of the intelligent door lock, enhances scientific and technological sense of the door lock, and solves the safety problem caused by false operation of door opening interference in a single capacitance mode. The sensor 30 multiple authentication is adopted to bring sufficient convenience and reliability to the user on the premise of ensuring safety, and the mode of awakening the main controller 10 by the sensor 30 can save cost, reduce power consumption and bring better experience to the user.
Fig. 3 is a schematic flowchart of a control method of an intelligent door locking and unlocking system according to another embodiment of the present invention. As shown in fig. 3, the control method of the intelligent door locking and opening system of the present embodiment includes steps S210-S300. Steps S210 to S260 are similar to steps S110 to S160 in the above embodiment, and step S270 is similar to step S300 in the above embodiment, and are not repeated here. The added steps S260 to S290 in the present embodiment will be described in detail below.
S270, the main controller 10 calculates the effective photoelectrons received by the sensor 30 to obtain effective photocurrent;
s280, calculating the relative distance of the human body detected by the current sensor 30 according to the effective photocurrent;
s290, judging whether the position of the human body is located in the designated area or not according to the relative distance;
if the position of the human body is located in the designated area, executing the step S300;
if the position of the human body is not located in the designated area, step S220 is executed.
When the sensor 30 detects that a human body is close to a designated area, because the sensor 30 detects the reflected light intensity, but there are interference lights of all bands such as sunlight or interference of the infrared light LED lamp 50 in the nature, in order to eliminate these natural or artificial light noises, it is necessary to detect and cancel the environmental noise in the use process, remove the external interference, and avoid the risk that the intelligent lock can be opened due to the existence of interference.
Specifically, if the external noise is considered to be stable and constant in a short time during which the light intensity is detected, the effective photoelectrons received by the sensor 30 are
Wherein C is an integral capacitance, t0For initial detection of the background noise time, I0For the initial detection of the intensity of light, u, detected during the background noise0Measuring an integral voltage during initial detection of the bottom noise; t is t1Is the effective signal time, I, detected by the sensor 301Is the intensity of the valid signal detected by the sensor 30, i.e. the received light intensity, u1The end integration voltage is measured at the time of the valid signal detected by sensor 30, which includes the signal left to remove the ambient noise floor. The relative distance of the human body detected by the current sensor 30 is obtained according to the effective photocurrent, and the effective value of the touch key 20 is synthesized to judge whether a person in the vicinity of the intelligent lock wants to open the intelligent lock, so that the door can be prepared to be opened.
It should be noted that, as can be clearly understood by those skilled in the art, the specific implementation process of the control method of the intelligent lock door opening system may refer to the corresponding description in the foregoing embodiment of the intelligent lock door opening system, and for convenience and conciseness of description, no further description is provided herein.
The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. An intelligent lock door opening system is characterized by comprising a main controller, a touch key, a sensor and an intelligent lock control panel connected with an intelligent lock door opening structure; the touch key is used for receiving a touch signal from a user operation; the main controller is used for receiving the touch signal transmitted by the touch key to generate a control signal; the sensor is used for working according to the control signal to detect whether a human body exists in the designated area or not so as to form a detection signal, and the detection signal is input to the main controller so that the main controller controls the intelligent lock control panel to work; and the intelligent lock control panel is used for driving the intelligent lock door opening structure to work under the control of the main controller.
2. The intelligent lock and door opening system according to claim 1, wherein the sensor is connected with an infrared LED lamp.
3. The intelligent lock-door opening system according to claim 1, further comprising a power supply unit; and the power supply unit is used for supplying power to the main controller, the touch key and the sensor.
4. The intelligent lock door opening system according to claim 3, wherein the intelligent lock control board is connected with the power supply unit.
5. The intelligent lock and door opening system of claim 1, wherein the touch key is a capacitive touch key, and the sensor is an infrared sensor.
6. A control method of an intelligent lock door opening system is characterized by comprising the following steps:
initializing a touch key and a sensor;
the sensor is turned off, and the main controller and the intelligent lock control panel enter a dormant state;
the touch key receives a touch signal from user operation;
the main controller judges whether the touch signal is a valid signal;
if the touch signal is a valid signal, turning on a sensor to receive the intensity of the reflected light;
the main controller judges whether a human body approaches to the designated area or not according to the received intensity of the reflected light;
if a human body is close to the designated area, the main controller controls the intelligent lock control panel to work, the intelligent lock control panel drives the intelligent lock door opening structure to work, and the intelligent lock door opening structure performs unlocking operation.
7. The control method of the intelligent lock-door opening system according to claim 6, wherein the designated area is an area enclosed by the intelligent lock and the wall at a distance of 20cm to 30 cm.
8. The method as claimed in claim 7, wherein the step of the main controller determining whether a human body is approaching the designated area according to the intensity of the received reflected light comprises:
the main controller calculates the variation of the received reflected light intensity;
the main controller judges whether an object shelters and moves in the designated area according to the variable quantity;
if the specified area is blocked and moved by an object, a human body approaches the specified area;
if the designated area is not blocked and moved by the object, no human body is close to the designated area.
9. The control method of the intelligent lock door opening system according to claim 6, wherein the main controller controls the operation of the intelligent lock control panel, the intelligent lock control panel drives the operation of the intelligent lock door opening structure, and before the intelligent lock door opening structure performs the unlocking operation, the method further comprises:
the main controller calculates the effective photoelectrons received by the sensor to obtain an effective photocurrent;
calculating the relative distance of the current sensor to the human body according to the effective photocurrent;
judging whether the position of the human body is located in the designated area or not according to the relative distance;
and if the position of the human body is located in the designated area, executing the main controller to control the intelligent lock control panel to work, driving the intelligent lock door opening structure to work by the intelligent lock control panel, and unlocking the intelligent lock door opening structure.
10. The method as claimed in claim 9, wherein the effective light received by the sensor is photoelectronic
Where c is the integrating capacitance, t0For initial detection of the background noise time, I0For the initial detection of the intensity of light, u, detected during the background noise0Measuring an integral voltage during initial detection of the bottom noise; t is t1For the effective signal time detected by the sensor, I1Is the light intensity, u, of the effective signal detected by the sensor1The end integration voltage is measured at the time of a valid signal detected by the sensor, and the valid signal comprises a signal left after removing the environmental noise.
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| CN202010350490.3A CN111535673A (en) | 2020-04-28 | 2020-04-28 | Intelligent door locking and opening system and control method thereof |
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| CN202010350490.3A CN111535673A (en) | 2020-04-28 | 2020-04-28 | Intelligent door locking and opening system and control method thereof |
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| CN113327353A (en) * | 2021-06-02 | 2021-08-31 | 广东好太太智能家居有限公司 | Unlocking method of intelligent door lock, intelligent door lock and intelligent door lock system |
| CN113345144A (en) * | 2021-08-05 | 2021-09-03 | 德施曼机电（中国）有限公司 | Intelligent lock, wearable device, and intelligent lock unlocking method and system |
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Application publication date: 20200814 |