CN113356692B - Intelligent door lock and control method - Google Patents
Intelligent door lock and control method Download PDFInfo
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- CN113356692B CN113356692B CN202010135134.XA CN202010135134A CN113356692B CN 113356692 B CN113356692 B CN 113356692B CN 202010135134 A CN202010135134 A CN 202010135134A CN 113356692 B CN113356692 B CN 113356692B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
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Abstract
The application provides an intelligent door lock and a control method. The intelligence lock includes: a main body; the body includes a switch; an identification module; a pyroelectric infrared sensor disposed on the body; the pyroelectric infrared sensor is used for detecting a human body activity signal and sending a first trigger instruction to the controller after the pyroelectric infrared sensor detects the human body activity signal; a controller; the controller is electrically connected with the pyroelectric infrared sensor, the identification module and the switch respectively; the controller is used for sending a second trigger instruction to the identification module according to the first trigger instruction and controlling the switch to be switched on and off according to the identification result of the identification module. Compared with the prior art, the problem that a user needs to manually trigger the door lock and inconvenience is brought to the user is solved. In addition, whether a human body is close to the intelligent door lock is determined through the pyroelectric infrared sensor, power consumption is low, and the intelligent door lock can be widely applied to the intelligent door lock.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to an intelligent door lock and a control method.
Background
Along with the development of science and technology, more and more products have realized the intellectuality, for example current intelligent lock can be through modes such as password, fingerprint, face identification unblock, provides convenience for the user. However, most of the existing intelligent door locks need to be manually triggered first, and whether a person is close to the intelligent door lock cannot be automatically identified, for example, the intelligent door lock is unlocked in a face identification mode, the user needs to be manually triggered first after being close to the intelligent door lock, and if the user holds an object in the hand, the intelligent door lock is inconvenient. The inventor finds in practical research that at present, a small part of intelligent door locks automatically sense human bodies by adopting an infrared emission technology, but the power consumption of the mode is too large.
Disclosure of Invention
An object of the embodiment of the application is to provide an intelligent door lock and a control method, so as to solve the problem that the current intelligent door lock automatically responds to a human body by adopting an infrared emission technology, and the power consumption of the method is too large.
The application is realized as follows:
in a first aspect, an embodiment of the present application provides an intelligent door lock, including: a main body; the body includes a switch; an identification module; disposed on the body; a pyroelectric infrared sensor disposed on the main body; the pyroelectric infrared sensor is used for detecting a human body activity signal and sending a first trigger instruction to the controller after the pyroelectric infrared sensor detects the human body activity signal; and a controller; the controller is electrically connected with the pyroelectric infrared sensor, the identification module and the switch respectively; the controller is used for sending a second trigger instruction to the identification module according to the first trigger instruction and controlling the switch to be switched on and off according to the identification result of the identification module.
The intelligent door lock that this application embodiment provided, accessible pyroelectric infrared sensor detects whether someone is close to, and is specific, and the pyroelectric element among the pyroelectric infrared sensor can be used for detecting human produced infrared radiation, and then confirms that someone is close to through the infrared radiation that detects. And when the human body activity signal is detected, sending a first trigger instruction to the controller so that the controller triggers the identification module. Compared with the prior art, the problem that a user needs to manually trigger the door lock and inconvenience is brought to the user is solved. In addition, whether a human body is close to the intelligent door lock is determined through the pyroelectric infrared sensor, power consumption is low, and the intelligent door lock can be widely applied to the intelligent door lock.
With reference to the technical solution provided by the first aspect, in some possible implementations, the intelligent door lock further includes a power module; the power supply module is electrically connected with the identification module, the controller and the pyroelectric infrared sensor respectively; the power module is used for supplying power to the identification module, the controller and the pyroelectric infrared sensor.
In this application embodiment, supply power for identification module, controller and pyroelectric infrared sensor through power module, guaranteed the stable work of whole intelligent lock.
With reference to the technical solution provided by the first aspect, in some possible implementation manners, the intelligent door lock further includes a power management module; the power management module is electrically connected with the power module, the identification module, the controller and the pyroelectric infrared sensor respectively; the power supply module is used for supplying power to the power supply management module; the power management module is used for continuously supplying power to the pyroelectric infrared sensor and supplying power to the controller and the identification module after the pyroelectric infrared sensor detects the human body activity signal.
The intelligent door lock that this application embodiment provided still is provided with power management module, and power management module sustainable meeting pyroelectric infrared sensor supplies power. When the pyroelectric infrared sensor detects a human body activity signal, the power management module can supply power to the controller and the identification module, and the power consumption of the intelligent door lock is further reduced.
With reference to the technical solution provided by the first aspect, in some possible implementation manners, the intelligent door lock further includes a first resistor, a second resistor, an electric resistor, a first capacitor, a second capacitor, and a third capacitor; the power end of the pyroelectric infrared sensor is electrically connected with the first end of the first resistor, and the second end of the first resistor is connected with a power supply; the power end of the pyroelectric infrared sensor is also electrically connected with the first end of the first capacitor, and the second end of the first capacitor is grounded; a first signal end of the pyroelectric infrared sensor is electrically connected with a first end of the second resistor, and a second end of the second resistor is electrically connected with a first end of the power management module; the first signal end of the pyroelectric infrared sensor is also electrically connected with the first end of the second capacitor, and the second end of the second capacitor is grounded; a second signal end of the pyroelectric infrared sensor is electrically connected with a first end of the third resistor, and a second end of the third resistor is electrically connected with a second end of the power management module; the second signal end of the pyroelectric infrared sensor is also electrically connected with the first end of the third capacitor, and the second end of the third capacitor is grounded; and the grounding end of the pyroelectric infrared sensor is grounded.
In the embodiment of the application, through the circuit structure, the sensitivity of the pyroelectric infrared sensor can be improved, and interference signals or invalid signals in the circuit can be effectively eliminated. Plays a positive role in the operation of the pyroelectric infrared sensor.
With reference to the technical solution provided by the first aspect, in some possible implementation manners, the identification module includes a voiceprint identification module; the voiceprint recognition module comprises a microphone and a voiceprint chip; the voiceprint chip is respectively electrically connected with the microphone and the controller, and is used for receiving voice information of the microphone, comparing the voice information with preset voice information in a voiceprint mode, judging whether a voiceprint comparison result is larger than a preset threshold value or not, and sending an instruction for opening the switch to the controller after the voiceprint comparison result is larger than the preset threshold value.
The intelligent lock in the embodiment of the application provides a mode that the voiceprint unblanked, also, acquires speech information through the microphone in the voiceprint recognition module, and the voiceprint chip in the rethread voiceprint recognition module will speech information carries out the voiceprint to compare with preset speech information, if compare the note result and be greater than preset threshold value, then send the instruction that is used for opening the switch to the controller. Because the voiceprint has the uniqueness of biological identification like the iris, the security of the door lock is provided by unlocking through the voiceprint. In addition, the voiceprint recognition only needs the user to speak, and the user does not need to align the face to the lens or place the hand on the fingerprint recognition board, so that convenience is improved.
With reference to the technical solution provided by the first aspect, in some possible implementations, the microphone includes a first microphone and a second microphone; the voiceprint chip is electrically connected with the first microphone and the second microphone; the voiceprint chip is used for comparing the received voice information of the first microphone with the received voice information of the second microphone, and then filtering the environmental noise.
The intelligence lock in this application embodiment is provided with two microphones. The voiceprint chip can compare the voice information of the two microphones, and then filter the environmental noise, and further enable the extracted voice of the user to be clearer and more accurate.
In combination with the technical solution provided by the first aspect, in some possible implementation manners, the intelligent door lock further includes a fresnel lens, and the fresnel lens is disposed above the pyroelectric infrared sensor.
In the embodiment of the application, the Fresnel lens is arranged above the pyroelectric infrared sensor, so that the sensing angle and sensitivity of the pyroelectric infrared sensor can be improved.
With reference to the technical solution provided by the first aspect, in some possible implementation manners, the identification module includes a face identification module and/or a password identification module and/or a fingerprint identification module.
The intelligent lock that this application embodiment provided can combine multiple identification means simultaneously, has increased the function of intelligent lock, detects human activity signal at the intelligent lock, can provide multiple identification means, and the user can use arbitrary identification means to unblank according to the demand, has improved user experience, also provides convenience for the user.
In a second aspect, an embodiment of the present application provides a control method, which is applied to the intelligent door lock provided in the first aspect, where the method includes: the pyroelectric infrared sensor sends a first trigger instruction to the controller after detecting the human body activity signal; after receiving the first trigger instruction, the controller sends a second trigger instruction to the identification module; after receiving the second trigger instruction, the identification module acquires an identification result according to input information of a user and sends the identification result to the controller; and the controller controls the switch to be switched on and off according to the identification result.
In combination with the technical solution provided by the second aspect, in some possible implementations, the intelligent door lock further includes a power module and a power management module; the power management module is electrically connected with the power module, the identification module, the controller and the pyroelectric infrared sensor respectively; the power supply module is used for supplying power to the power supply management module; the power supply management module is used for continuously supplying power to the pyroelectric infrared sensor; when the pyroelectric infrared sensor detects the human body activity signal, the method further comprises the following steps: the pyroelectric infrared sensor sends a third trigger instruction to the power management module; and the power supply management module supplies power to the controller and the identification module after receiving the third trigger instruction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an intelligent door lock provided in an embodiment of the present application.
Fig. 2 is a schematic module diagram of another intelligent door lock according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a detection circuit according to an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of another intelligent door lock provided in the embodiment of the present application.
Fig. 5 is a schematic structural diagram of a voiceprint recognition module and a controller according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of another intelligent door lock according to an embodiment of the present application.
Fig. 7 is a flowchart illustrating steps of a control method according to an embodiment of the present disclosure.
Icon: 10-intelligent door lock; 100-a body; 200-an identification module; 201-a microphone; 202-display screen; 203-lens; 204-lens fill light; 205-fingerprint recognition board; 206-keyhole; 300-pyroelectric Infrared sensor.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Most of existing intelligent door locks need to be manually triggered first, whether people are close to the intelligent door lock can not be automatically identified, for example, when the intelligent door lock is unlocked in a face recognition mode, a user needs to manually trigger the intelligent door lock first after being close to the intelligent door lock, and if the user holds an object in the hand, the user is inconvenient. A small part of intelligent door locks automatically sense human bodies by adopting an infrared emission technology, but the power consumption of the mode is too large.
In view of the above problems, the present inventors have studied and researched to provide the following embodiments to solve the above problems.
Referring to fig. 1, an embodiment of the present application provides an intelligent door lock 10. This intelligence lock 10 includes: the main body 100, the identification module 200, the controller, and the pyroelectric InfraRed sensor 300 (PIR).
Wherein, a switch is provided on the main body 100. The switch may be an electromagnetic switch, a single control switch, a double control switch, or the like. Of course, the switch may also include actuators such as a motor, compressor, etc.
The above-described identification module 200 is provided on the main body 100, and the identification module 200 is used to identify a user. For example, the recognition module 200 may be a fingerprint recognition module or a face recognition module. When the recognition module 200 is a fingerprint recognition module, a fingerprint recognition plate is provided on the main body 100, and when the recognition module 200 is a face recognition module, a lens for recognizing an iris is provided on the main body 100.
The pyroelectric infrared sensor 300 described above is also provided on the main body 100. The pyroelectric infrared sensor 300 may be used to detect human activity signals. Specifically, the pyroelectric element in the pyroelectric infrared sensor 300 may be used to detect infrared radiation generated by a human body, and then determine that the human body approaches through the detected infrared radiation.
The controller is electrically connected to the identification module 200, the pyroelectric infrared sensor 300 and the switch.
The Controller may be a single chip, such as a 51 single chip, a Programmable Logic Controller (PLC), or a general Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. A general purpose processor may be a microprocessor or the controller may be any conventional processor or the like.
The following is a description of the overall operation of the intelligent door lock 10: after the pyroelectric infrared sensor 300 detects the human body activity signal, the pyroelectric infrared sensor 300 sends a first trigger instruction to the controller to operate the controller. After the controller receives the first trigger instruction of the pyroelectric infrared sensor 300, the controller sends a second trigger instruction to the identification module 200, so that the identification module operates. After the identification module 200 receives the second trigger instruction, the identification module 200 may obtain an identification result according to the input information of the user, for example, when the identification module 200 is a fingerprint identification module, the user may place a finger with a recorded fingerprint on a fingerprint identification board for identification; for another example, when the recognition module 200 is a face recognition module, the user may aim the face at the lens. The recognition module 200 obtains a recognition result according to the fingerprint input by the user or the detected iris. The recognition result 200 is then sent to the controller. After receiving the identification result, the controller controls the switch to be turned on and off based on the identification result, for example, when the identification result is correct, that is, the fingerprint of the user is consistent with the entered fingerprint or the iris of the user is consistent with the entered iris, the controller controls the switch to be turned on. Correspondingly, when the recognition result is negative, the controller controls the switch to be continuously closed.
It should be noted that the working current of the pyroelectric infrared sensor 300 is 4 to 5 microamperes, while the working current of the intelligent door lock adopting the infrared emission technology for human body induction in the prior art is 30 to 50 milliamperes. In comparison, the intelligent door lock 10 that performs human body sensing through the pyroelectric infrared sensor 300 provided by the present application has very low power consumption.
In summary, the intelligent door lock 10 provided in the embodiment of the present application can detect whether a human body is approaching through the pyroelectric infrared sensor 300. When the human body activity signal is detected, a first trigger instruction is sent to the controller, so that the controller triggers the identification module 200. Compared with the prior art, the problem that inconvenience is brought to a user due to the fact that the user needs to manually trigger the door lock is solved. In addition, whether a human body approaches is determined through the pyroelectric infrared sensor 300, power consumption is low, and the intelligent door lock can be widely applied to intelligent door locks.
Optionally, in order to improve the sensing angle and sensitivity of the pyroelectric infrared sensor 300. The intelligent door lock further comprises a Fresnel lens. The fresnel lens is disposed above the pyroelectric infrared sensor 300. The Fresnel lens is also named as a screw lens, is mostly a sheet formed by injecting and pressing polyolefin materials and is also made of glass, one surface of the lens is a smooth surface, the other surface of the lens is inscribed with concentric circles from small to large, and the texture of the Fresnel lens is designed according to the requirements of light interference and interference, relative sensitivity and receiving angle. Therefore, the sensing angle and sensitivity of the pyroelectric infrared sensor 300 can be significantly improved by the fresnel lens.
Optionally, the intelligent door lock further comprises a power module. The power module is respectively and electrically connected with the identification module, the controller and the pyroelectric infrared sensor. The power module is used for supplying power for the identification module, the controller and the pyroelectric infrared sensor.
In the embodiment of the application, the power module supplies power to the identification module, the controller and the pyroelectric infrared sensor, so that the stable work of the whole intelligent door lock is ensured.
The applicant finds that if the intelligent door lock does not sense the approach of a human body, the power module continuously supplies power to the controller and the identification module, and unnecessary waste is necessarily caused. Therefore, in the embodiment of the present application, the smart door lock further includes a power management module.
Referring to fig. 2, the power management module is electrically connected to the power module, the identification module, the controller and the pyroelectric infrared sensor. The power supply module is used for supplying power for the power supply management module. And the power supply management module is used for continuously supplying power to the pyroelectric infrared sensor and supplying power to the controller and the identification module after the pyroelectric infrared sensor detects a human activity signal. That is, when the intelligent door lock is in use, the pyroelectric infrared sensor is continuously powered, and the controller and the identification module are not continuously powered. And only after the pyroelectric infrared sensor detects a human body activity signal, the power supply management module supplies power to the controller and the identification module. That is, after the pyroelectric infrared sensor detects the human body activity signal, the pyroelectric infrared sensor sends a third trigger instruction to the power management module. And the power management module supplies power to the controller and the identification module after receiving the third trigger instruction.
The power management module may be a power management chip, such as ADP3168, TL949, or the like. Of course, the power management module may also be implemented by a transistor.
To sum up, the intelligence lock that this application embodiment provided still is provided with power management module, and the sustainable pyroelectric infrared sensor power supply that can of power management module. When the pyroelectric infrared sensor detects a human body activity signal, the power management module can supply power to the controller and the identification module, and the power consumption of the intelligent door lock is further reduced.
Referring to fig. 3, a detection circuit connected to the pyroelectric infrared sensor and the power management module is described below. The detection circuit includes: the pyroelectric infrared sensor comprises a first resistor R1, a second resistor R2, an electric three resistor R3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a pyroelectric infrared sensor PIR and a power management module M1.
The power supply end of the pyroelectric infrared sensor PIR is electrically connected with the first end of the first resistor R1. The second end of the first resistor R1 is connected with a 3.3V power supply. The power supply end of the pyroelectric infrared sensor PIR is also electrically connected with the first end of the first capacitor C1, and the second end of the first capacitor C1 is grounded.
In the embodiment of the present application, the resistance of the first resistor R1 is 10 ohms, and the capacitance of the first capacitor C1 is 470 nanofarads.
The first signal end of the pyroelectric infrared sensor PIR is electrically connected with the first end of the second resistor R2. A second terminal of the second resistor R2 is electrically connected to a first terminal of the power management module M1. The first signal end of the pyroelectric infrared sensor PIR is also electrically connected with the first end of a second capacitor C2. The second terminal of the second capacitor C2 is connected to ground.
In the embodiment of the present application, the resistance of the second resistor R2 is 470 ohms, and the capacitance of the second capacitor C2 is 47 picofarads.
The second signal end of the pyroelectric infrared sensor PIR is electrically connected with the first end of the third resistor R3. The second end of the third resistor R3 is electrically connected to the second end of the power management module M1. The second signal end of the pyroelectric infrared sensor PIR is also electrically connected with the first end of a third capacitor C3. The second terminal of the third capacitor C3 is connected to ground.
In the embodiment of the present application, the resistance of the third resistor R3 is 470 ohms, and the capacitance of the third capacitor C3 is 47 picofarads.
The grounding end of the pyroelectric infrared sensor is grounded.
The resistances of the first resistor R1, the second resistor R2, and the electrical resistor R3 are not limited in this application. For example, the first resistor R1 may be 5 ohms, the second resistor R2 may be 500 ohms, and so on. In addition, the number of the resistors is not limited in this application, and for example, two first resistors R1 may be connected in series, three second resistors R2 may be connected in parallel, and so on. Accordingly, the capacitance values and the numbers of the first capacitor C1, the second capacitor C2 and the third capacitor C3 are not limited in this application.
In the embodiment of the application, through the circuit structure, the sensitivity of the pyroelectric infrared sensor can be improved, and interference signals or invalid signals in the circuit can be effectively eliminated. Plays a positive role in the operation of the pyroelectric infrared sensor.
Referring to fig. 4, optionally, the embodiment of the present application further provides a method for unlocking through voiceprint recognition. That is, the recognition module is a voiceprint recognition module.
The voiceprint recognition module includes a microphone 201 and a voiceprint chip.
The voiceprint chip is electrically connected with the microphone 201 and the controller respectively. The voiceprint chip is used for receiving the voice information of the microphone 201, comparing the voice information with preset voice information, judging whether a voiceprint comparison result is larger than a preset threshold value or not, and sending an instruction for turning on a switch to the controller after the voiceprint comparison result is larger than the preset threshold value.
Referring to fig. 5, in the embodiment of the present application, the signal of the voiceprint chip is TH1520 CP. The preset voice information is a sound which is input by a user in advance, for example, the user can input sentences such as "Tianwang and tiger" or "I come back and cheer". The voiceprint chip can perform voiceprint comparison through a built-in algorithm according to the voice information received by the microphone 201 and preset voice information. Before comparison, the voice information is subjected to feature extraction, and then the voice information after feature extraction is compared. The preset threshold may be a specific value, such as 80%. That is, when the comparison result between the voice information and the preset voice information is greater than 80%, it indicates that the verification is passed, and at this time, the voiceprint chip sends an instruction for turning on the switch to the controller. And after the controller receives the command again, the controller drives the motor, the compressor and other execution components to open the switch.
The intelligent lock in the embodiment of the application provides a voiceprint unlocking mode, namely, acquires voice information through a microphone 201 in a voiceprint recognition module, and then carries out voiceprint comparison on the voice information and preset voice information through a voiceprint chip in the voiceprint recognition module, and if a comparison result is larger than a preset threshold value, an instruction for opening a switch is sent to a controller. Because the voiceprint is the same as the iris and has the uniqueness of biological identification, the security of the door lock is provided by unlocking through the voiceprint. In addition, the voiceprint recognition only needs the user to speak, and the user does not need to align the face to the lens or place the hand on the fingerprint recognition board, so that convenience is improved.
Optionally, the microphone comprises a first microphone and a second microphone. The voiceprint chip is electrically connected with the first microphone and the second microphone. The voiceprint chip is used for comparing the received voice information of the first microphone with the received voice information of the second microphone, and then filtering the environmental noise.
The intelligence lock in this application embodiment is provided with two microphones. The voiceprint chip can compare the voice information of the two microphones, and then filter the environmental noise, and further enable the extracted voice of the user to be clearer and more accurate.
In the embodiment of the present application, the recognition module may be the above-mentioned voiceprint recognition module, and may further include one or more of a face recognition module, a password recognition module, and a fingerprint recognition module. As shown in fig. 6, the intelligent door lock 10 provided in the embodiment of the present application is sequentially provided with, from top to bottom, a display screen 202, a lens 203 (for face recognition), a lens light supplement lamp 204, a pyroelectric infrared sensor 300, a microphone 201, and a fingerprint recognition board 205.
Of course, in other embodiments, the intelligent door lock 10 may also have the functions of a conventional door lock, such as a key hole 206 at the lowest end of the intelligent door lock.
It should be noted that fig. 6 is a structural diagram of each identification module on the intelligent door lock, and in other embodiments, the position arrangement of the identification module may be different from that in fig. 6. For example, the microphone 201 is disposed at the top end of the main body 100, but the present application is not limited thereto.
To sum up, the intelligent lock that this application embodiment provided can combine multiple identification mode simultaneously, has increased the function of intelligent lock, detects human activity signal at the intelligent lock, can provide multiple identification mode, and the user can use arbitrary identification mode to unblank according to the demand, has improved user experience, also provides convenience for the user.
Referring to fig. 7, based on the same inventive concept, an embodiment of the present application further provides a control method. The method is applied to the intelligent door lock provided by the embodiment. The method comprises the following steps: step S101-step S104.
Step S101: the pyroelectric infrared sensor sends a first trigger instruction to the controller after detecting a human body activity signal.
Step S102: and after receiving the first trigger instruction, the controller sends a second trigger instruction to the identification module.
Step S103: and after receiving the second trigger instruction, the identification module acquires an identification result according to the input information of the user and sends the identification result to the controller.
Step S104: and the controller controls the switch to be switched on and off according to the identification result.
Optionally, when the intelligent door lock further includes the power module and the power management module in the above embodiments, after the pyroelectric infrared sensor detects the human activity signal, the method further includes: and the pyroelectric infrared sensor sends a third trigger instruction to the power management module. And the power management module supplies power to the controller and the identification module after receiving the third trigger instruction.
It should be noted that, since the whole operation process of the intelligent door lock has been described in the above embodiments, the repeated explanation is not provided herein to avoid the encumbrance. The same parts may be referred to each other.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
In the description of the present application, it is noted that the orientation or positional relationship that the article of the application is conventionally placed in use is merely for convenience in describing the application and for simplicity in description, and is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. An intelligent door lock, comprising:
a main body; the body comprises a switch;
an identification module; disposed on the body;
a pyroelectric infrared sensor disposed on the body; the pyroelectric infrared sensor is used for detecting a human body activity signal and sending a first trigger instruction to the controller after the pyroelectric infrared sensor detects the human body activity signal; and
a controller; the controller is electrically connected with the pyroelectric infrared sensor, the identification module and the switch respectively; the controller is used for sending a second trigger instruction to the identification module according to the first trigger instruction and controlling the switch to be switched on and off according to the identification result of the identification module;
the intelligent door lock further comprises a power supply module; the power supply module is electrically connected with the identification module, the controller and the pyroelectric infrared sensor respectively; the power supply module is used for supplying power to the identification module, the controller and the pyroelectric infrared sensor;
the intelligent door lock also comprises a power supply management module; the power management module is electrically connected with the power module, the identification module, the controller and the pyroelectric infrared sensor respectively; the power supply module is used for supplying power to the power supply management module; the power supply management module is used for continuously supplying power to the pyroelectric infrared sensor and supplying power to the controller and the identification module after the pyroelectric infrared sensor detects the human body activity signal;
the intelligent door lock further comprises a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor and a third capacitor; the power end of the pyroelectric infrared sensor is electrically connected with the first end of the first resistor, and the second end of the first resistor is connected with a power supply; the power end of the pyroelectric infrared sensor is also electrically connected with the first end of the first capacitor, and the second end of the first capacitor is grounded; a first signal end of the pyroelectric infrared sensor is electrically connected with a first end of the second resistor, and a second end of the second resistor is electrically connected with a first end of the power management module; the first signal end of the pyroelectric infrared sensor is also electrically connected with the first end of the second capacitor, and the second end of the second capacitor is grounded; a second signal end of the pyroelectric infrared sensor is electrically connected with a first end of the third resistor, and a second end of the third resistor is electrically connected with a second end of the power management module; the second signal end of the pyroelectric infrared sensor is also electrically connected with the first end of the third capacitor, and the second end of the third capacitor is grounded; and the grounding end of the pyroelectric infrared sensor is grounded.
2. The intelligent door lock of claim 1, wherein the identification module comprises a voiceprint identification module;
the voiceprint recognition module comprises a microphone and a voiceprint chip;
the voiceprint chip is respectively electrically connected with the microphone and the controller, and is used for receiving voice information of the microphone, comparing the voice information with preset voice information in a voiceprint mode, judging whether a voiceprint comparison result is larger than a preset threshold value or not, and sending an instruction for opening the switch to the controller after the voiceprint comparison result is larger than the preset threshold value.
3. The smart door lock of claim 2, wherein the microphone comprises a first microphone and a second microphone; the voiceprint chip is electrically connected with the first microphone and the second microphone; the voiceprint chip is used for comparing the received voice information of the first microphone with the received voice information of the second microphone, and then filtering the environmental noise.
4. The intelligent door lock of claim 1, further comprising a fresnel lens disposed above the pyroelectric infrared sensor.
5. The intelligent door lock according to claim 1, wherein the identification module comprises a face recognition module and/or a password identification module and/or a fingerprint identification module.
6. A control method applied to the intelligent door lock according to claim 1, the method comprising:
the pyroelectric infrared sensor sends a first trigger instruction to the controller after detecting the human body activity signal;
after receiving the first trigger instruction, the controller sends a second trigger instruction to the identification module;
after receiving the second trigger instruction, the identification module acquires an identification result according to input information of a user and sends the identification result to the controller;
and the controller controls the switch to be switched on and off according to the identification result.
7. The control method of claim 6, wherein the smart door lock further comprises a power module and a power management module; the power management module is electrically connected with the power module, the identification module, the controller and the pyroelectric infrared sensor respectively; the power supply module is used for supplying power to the power supply management module; the power supply management module is used for continuously supplying power to the pyroelectric infrared sensor; when the pyroelectric infrared sensor detects the human body activity signal, the method further comprises the following steps:
the pyroelectric infrared sensor sends a third trigger instruction to the power management module;
and the power supply management module supplies power to the controller and the identification module after receiving the third trigger instruction.
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