CN212027456U

CN212027456U - Intelligent lock

Info

Publication number: CN212027456U
Application number: CN202020193715.4U
Authority: CN
Inventors: 唐俊雄
Original assignee: Dessmann China Machinery and Electronic Co Ltd
Current assignee: Dessmann China Machinery and Electronic Co Ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-11-27
Anticipated expiration: 2030-02-21

Abstract

The utility model discloses an intelligent lock belongs to intelligent lock technical field. The device comprises a power supply and a voltage converter, and also comprises a photosensitive module, a motor control module, a main control module and an identification module; the power supply, the photosensitive module and the voltage converter are sequentially connected in series, and the identification module, the main control module and the motor control module are all connected with the voltage converter; the identification module and the motor control module are connected with the main control module; the photosensitive module is arranged at a light-transmitting area on the lockset. The technical problem that the lock structure space is difficult to design is solved in the resetting of traditional mechanical keys in the prior art, the intelligent lock is reset by changing the intensity of light in a light-transmitting area on the lock, and the light-transmitting area structure space provided with the photosensitive module is easy to design.

Description

Intelligent lock

Technical Field

The utility model relates to an intelligence lock technical field, concretely relates to intelligence lock.

Background

Compared with a traditional mechanical lock, the intelligent door lock is a composite lock with safety, convenience and advanced technology. However, as an electronic device, an intelligent lock may inevitably have an operation failure of an electronic system, such as electrostatic interference, and a program runs off to cause a device crash, and as a key device with a high use frequency, the lock has very important reliability and stability, and in order to solve the problem of a crash situation, a system reset module is generally added outside a door of the intelligent lock. Traditional module that resets adopts the form that the button resets, will reset the button design in the relative hidden position of tool to lock front bezel, through the lock that resets of pressing down to the button that resets. However, the traditional mechanical key reset has the technical problems that the appearance of the lock is damaged, the structural space of the lock is not easy to design, and only the control part of the lock can be reset.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The technical problem that there is the difficult design of tool to lock structure space to traditional machinery button among the prior art resets, the utility model provides an intelligence lock is equipped with photosensitive module's printing opacity district structural space and easily designs, and through the printing opacity district illumination intensity that changes on the tool to lock, resets to intelligence lock.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

an intelligent lock comprises a power supply, a voltage converter, a photosensitive module, a motor control module, a main control module and an identification module; the power supply, the photosensitive module and the voltage converter are sequentially connected in series, and the identification module, the main control module and the motor control module are all connected with the voltage converter; the identification module and the motor control module are connected with the main control module; the photosensitive module is arranged at a light-transmitting area on the lockset.

According to the photosensitive action of photosensitive module, the illumination intensity change that photosensitive module received is changed through the light-transmitting area on the tool to lock to realize the break-make of circuit structure in the photosensitive module.

Optionally, the photosensitive module includes a photosensitive element, a first resistor R1 and a switch tube Q, one end of the photosensitive element is connected to the positive terminal of the power supply and the first end of the switch tube Q, the other end of the photosensitive element is connected to the third terminal of the switch tube Q and one end of a first resistor R1, the second terminal of the switch tube Q is connected to the voltage converter, and the other end of the first resistor R1 and the negative terminal of the power supply are both grounded. The power supplies input electric energy to the voltage converter through the switching tube Q, the voltage converter outputs 3.3V or 5V to other modules of the intelligent lock, and the power supplies of the intelligent lock are batteries generally. According to the photosensitive action of the photosensitive element, the change of the illumination intensity can cause the change of the characteristics of the photosensitive element, and the voltage difference between the G pole and the S pole of the switching tube Q is further influenced, so that the on-off of the switching tube Q is realized. Taking the photo resistor R2 as an example, under normal conditions, the photo resistor R2 is arranged at the hidden light part of the lock, the received light is weak, and due to the photo characteristic of the photo resistor R2, the resistor presents high impedance, and R2 is Rd. The difference between the G pole and the S pole of the switching tube Q is equal to the difference between the voltage V3 far away from the grounding end and the power supply voltage V1 of R1 in the circuit, the maximum starting voltage of the switching tube Q is Vth, which is a negative value, the difference between the G pole and the S pole of the switching tube Q is Vg-Vs, which is V1R 1/(R1+ Rd) -V1, which is a negative value, Vgs is less than or equal to Vth, and the switching tube Q is in an on state to supply power to the whole lock. When the lockset is halted, the resetting operation is needed, and at the moment, the light-transmitting area of the lockset can be irradiated by using a mobile phone flashlight which is carried by people at ordinary times. When strong light irradiates, the photoresistor R2 receives strong light, the resistance value is reduced due to the photosensitive characteristic of the photoresistor, R2 is Rb, the voltage difference Vg-Vs between the G pole and the S pole of the switching tube Q is V1R 1/(R1+ Rb) -V1 is a negative value, Vgs is more than Vth, the switching tube Q is closed, and the whole device is powered off. In conclusion, according to the photosensitive characteristic of the photosensitive resistor, the lock complete machine is powered off and powered on to reset, the design is ingenious, the power is completely cut off, and the lock is reset to the maximum extent. When the lockset is halted, a user can reset the lockset by using the portable luminous articles such as a mobile phone, and the lockset is simple to operate, convenient and fast.

Optionally, the voltage converter is an LDO converter or a DCDC converter. When the voltage conversion voltage difference in the circuit is smaller, an LDO (low Dropout regulator) converter is selected, the voltage conversion voltage difference required by the converter is small, and the conversion efficiency is high; when the voltage conversion voltage difference in the circuit is large, a DCDC (direct Current) converter is selected, and the converter can convert the direct current voltage into the specified direct current voltage and has the characteristics of large output current, small static current, high conversion efficiency and the like.

Optionally, the identification module is a fingerprint module connected to the voltage converter, and the fingerprint module includes a fingerprint acquisition module and a fingerprint identification module; the fingerprint acquisition module is connected with the fingerprint identification module. The fingerprint collecting module collects fingerprints by utilizing the refraction and reflection principles of light. The light is emitted to the fingerprint through the prism, the refraction angle on the uneven lines of the fingerprint and the reflected light are different in brightness and darkness, and therefore the optical device collects picture information with different brightness and darkness degrees to finish fingerprint collection. The fingerprint identification module analyzes the fingerprint acquired by the fingerprint acquisition module, extracts the characteristics of the fingerprint, separates specific characteristic points to replace different fingerprint lines, compares the acquired fingerprint characteristics with fingerprint characteristics stored in a database of the fingerprint identification module one by one, judges whether the fingerprint belongs to the same fingerprint, and sends an unlocking signal to the main control module if the fingerprint comparison is successful, and the main control module receives the signal and controls the motor control module to unlock; if the fingerprint comparison is unsuccessful, the fingerprint module does not send a signal to the main control module. The fingerprint input mode is used for unlocking, and the method is simple, safe and reliable.

Optionally, the identification module is a password touch key module connected with the voltage converter, and the password touch key module comprises a touch screen, an RC control circuit and a password identification module which are connected in sequence. The password touch control module senses touch action by using capacitance voltage change of the RC control circuit to identify the password. The RC (resistor capacitor circuit) control circuit is connected with the touch screen, when a human hand approaches the touch screen, a capacitor is formed between the RC (resistor capacitor) control circuit and an electrode plate below the touch screen, and touch action is induced by detecting the change of the capacitor. The password identification module compares the password input through the touch screen and the RC control circuit with the correct password stored in the database, if the password comparison is successful, the password identification module sends an unlocking signal to the main control module, and the main control module receives the signal and controls the motor control module to unlock; if the password comparison is unsuccessful, the password identification module does not send a signal to the main control module. The unlocking is carried out by utilizing a password input mode, and the method is simple, safe and reliable.

Optionally, the identification module is a card swiping module connected with the voltage converter, and the card swiping module includes a card reader and a card number identification module which are connected in sequence. When the lock is unlocked, the card reader is close to the card reading position, and the card reader reads the card number of the card. Then the card number identification module determines whether to send signals to the main control module by comparing with the correct card number, if the card number comparison is successful, the card number identification module sends an unlocking signal to the main control module, and the main control module receives the signal and controls the motor control module to unlock; if the card number comparison is unsuccessful, the password identification module does not send a signal to the main control module.

Optionally, the identification module is a face identification module connected to the voltage converter, and the face identification module includes a camera and a face contour identification module that are connected in sequence. The camera collects images of human faces, and the human face recognition module recognizes the images by using a human face contour recognition algorithm built in the human face contour recognition module. Firstly, graying a face image acquired by a camera by a face contour recognition algorithm; secondly, the image is converted into a simple outline expression form by analyzing the brightness of the image, and a certain number of measured values are generated through the outline expression form; finally, the measured values are compared with the measured values stored in the database, if the measured values are similar to each other, the face recognition module sends an unlocking signal to the main control module, and the main control module receives the signal and controls the motor control module to unlock; if the difference is larger than the measured value, the face recognition module does not send a signal to the main control module. The face recognition is used for unlocking, and the unlocking method is simple, safe and reliable.

Optionally, when the switching tube Q is an MOS tube, the first end of the switching tube Q is a source electrode, the second end of the switching tube Q is a drain electrode, and the third end of the switching tube Q is a gate electrode; or, when the switching tube Q is a triode, the first end of the switching tube Q is an emitter, the second end of the switching tube Q is a collector, and the third end of the switching tube Q is a base.

The basic principle of the MOS tube is the same as that of the triode, and the on-off of a circuit power supply is realized according to the characteristics of the MOS tube or the triode, so that the reset operation of the lock is realized. Taking a MOS transistor as an example, the maximum starting voltage of the MOS transistor is Vth, and Vth is a negative value, under normal conditions, the G-pole and S-pole differential pressure Vgs of the MOS transistor is Vg-Vs-V1 × R1/(R1+ Rd) -V1 is a negative value, and at this time, Vgs is less than or equal to Vth, and the MOS transistor is in an on state to supply power to the whole lock. When the lock is halted, a reset operation is required, the light transmission area of the lock is irradiated by strong light, the G pole and S pole pressure difference Vgs-Vs-V1R 1/(R1+ Rb) -V1 of the MOS tube is a negative value, Vgs is larger than Vth, the MOS tube is closed, and the whole device is powered off. The characteristic of MOS pipe is utilized, and the tool to lock outage circular telegram is realized to the control operation that resets, and design benefit can realize furthest's resetting.

Optionally, the light-transmitting area on the lockset is made of a light-transmitting material; or the lockset is provided with an opening as a light-transmitting area, and the light-transmitting area can be made of silicate glass or polymethyl methacrylate or transparent glass fiber reinforced plastic. The light-transmitting material is used for setting the light-transmitting area at the invisible part of the lockset, natural light is not easy to irradiate the invisible part, the transmitted light is weak, and the change of the photoresistance can not be caused. When the tool to lock crashed and needs to reset, the light-transmitting area is the illumination of seeing through the cell-phone flashlight again very easily, and the photo resistance changes, realizes the tool to lock outage, realizes the tool to lock operation that resets.

Optionally, the photosensitive element is a photosensitive resistor R2, a photosensitive diode D1, or a phototriode.

When the photosensitive element is a photodiode D1, the cathode of the photodiode D1 is connected to the first terminal of the switching tube Q, and the anode of the photodiode D1 is connected to the third terminal of the switching tube Q and one end of the first resistor R1. When the photosensitive element is a phototriode, the E pole of the phototriode is connected with the first end of the switch tube Q, and the C pole of the phototriode is connected with the third end of the switch tube Q and one end of the first resistor R1. The basic principle of the photosensitive diode is the same as that of the phototriode, and the difference is that the phototriode converts an optical signal into an electric signal and simultaneously amplifies a signal current, so that the photosensitive diode has higher sensitivity. The base of the general phototriode is in the tube, and only the collector (C pole) and emitter (E pole) lead wires (also the base wire is led out). When the voltage is constant, the larger the illumination intensity is, the larger the current passing through the photosensitive diode and the photosensitive triode is. Under the normal working condition of the lockset, the extremely small current passing through the photosensitive diode and the photosensitive triode due to weak received light is I1, the difference between the G pole and the S pole voltage of the switching tube Q is equal to the difference between the voltage V3 far away from the grounding end of R1 in the circuit and the power supply voltage V1, the maximum starting voltage of the switching tube Q is Vth, the Vth is a negative value, the difference Vgs between the G pole and the S pole voltage of the switching tube Q is Vg-Vs I1R 1-V1 which is a negative value, the Vgs is less than or equal to Vth, and the switching tube Q supplies power to the whole lock in a switching-on state. When the lockset is halted, the resetting operation is needed, and at the moment, the light-transmitting area of the lockset can be irradiated by using a mobile phone flashlight which is carried by people at ordinary times. When strong light irradiates, the photosensitive diode or the photosensitive triode receives the strong light, the current passing through the photosensitive diode or the photosensitive triode is increased to I2 due to the photosensitive characteristic of the photosensitive diode or the photosensitive triode, the voltage difference Vgs-Vs between the G pole and the S pole of the switching tube Q is I2R 1-V1, and at the moment, Vgs is greater than Vth, the switching tube Q is closed, and the whole device is powered off. In conclusion, according to the photosensitive characteristic of the photosensitive diode or the photosensitive triode, the whole lockset is powered off and powered on to reset, the design is ingenious, the power is completely off, and the lockset is reset to the maximum extent. When the lockset is halted, a user can reset the lockset by using the carried articles, and the lockset is simple to operate, convenient and fast.

An intelligent lock, which comprises the following steps:

A. constructing the intelligent lock in any one of the above items;

B. when the lockset is halted, a light-transmitting area of the lockset is irradiated by using a portable flashlight;

C. after the illumination is finished, the flashlight of the mobile phone is moved away from the light-transmitting area of the lockset, so that the reset operation of the intelligent lock is completed.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the embodiment of the utility model provides an utilize the cell-phone flashlight that people hand-carried to reset to the intelligence lock, easy operation, convenient and fast.

(2) The embodiment of the utility model provides an in reset the tool to lock through photosensitive element's photosensitive characteristic, photosensitive element sets up inside the tool to lock, need not set up reset button on the tool to lock surface, compares traditional mechanical button and resets, can not destroy the tool to lock outward appearance, and the tool to lock outward appearance is pleasing to the eye, and the structure space is easily designed.

(3) The embodiment of the utility model provides an in realize switching on and shutting down through the two poles of the earth voltage difference of control switch pipe Q, possible switching on and shutting down for the whole lock, have the biggest width and the degree of depth that resets.

Drawings

Fig. 1 is a schematic view of an appearance and a usage of an intelligent lock according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a logic structure of an intelligent lock according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a logic structure of the intelligent lock according to fig. 2, according to an alternative embodiment.

Fig. 4 is a photosensitive module circuit diagram of the embodiment of the present invention based on a photosensitive resistor for an intelligent lock.

Fig. 5 is a photosensitive module circuit diagram of an intelligent lock based on a photodiode or a phototransistor.

The reference numerals in the schematic drawings illustrate:

1. a photosensitive element; 2. a light-transmitting region; 3. an intelligent lock; 4. provided is a mobile phone.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings 1-4 and examples.

Example 1

With reference to fig. 1, 2, 3, 4, and 5, the intelligent lock of the present embodiment includes a power supply, a voltage converter, a photosensitive module, a motor control module, a main control module, and an identification module; the power supply, the photosensitive module and the voltage converter are sequentially connected in series, and the identification module, the main control module and the motor control module are all connected with the voltage converter; the identification module and the motor control module are connected with the main control module; the photosensitive module is arranged at the light-transmitting area 2 on the lockset.

According to the photosensitive action of the photosensitive module, the change of the illumination intensity of the photosensitive module is changed through the light-transmitting area 2 on the lockset, so that the on-off of a circuit structure in the photosensitive module is realized; under the normal illumination condition, the internal circuit of photosensitive module is in the on-state, and the electric energy of power passes through photosensitive module and voltage converter and transforms and transmits, for identification module, host system and motor control module power supply. When the lockset is in a crash, a fault and other situations which cannot work normally occur, the lockset generally needs to be reset again to check or eliminate the fault states such as the crash, strong light (the strong light can be from a flash lamp of a mobile phone 4 or flashlight illumination and the like) is emitted into a light-transmitting area 2 of the lockset, after a photosensitive module senses the strong light illumination, an internal circuit of the photosensitive module is turned off, and due to the series connection relationship between a power supply and the photosensitive module and a voltage converter, the power supply cannot supply power for an identification module, a main control module and a motor control module of an intelligent lock 3; after the strong light disappears, the internal circuit of the photosensitive module is switched on, and the power supply continues to supply power to the identification module, the main control module and the motor control module; in conclusion, the light intensity of the light sensitive module is changed through the light sensitive action of the light sensitive module, the power-off and power-on operations of all loads of the intelligent lock 3 are realized, and the structural space is easy to design. The reset device such as an additional reset switch is not needed to be designed, the design difficulty of the appearance structure of the lock is reduced, in terms of reset, an input main power supply is powered off, the reset width and the reset depth are the largest, and the reset scheme is the most thorough in power off.

Example 2

With reference to fig. 1, 2, 3 and 4, the intelligent lock 3 of this embodiment, compared with the technical solution of embodiment 1, the photosensitive module includes a photosensitive element 1, a first resistor R1 and a switch tube Q, one end of the photosensitive element 1 is connected to the positive electrode of the power supply and the first end of the switch tube Q, the other end of the photosensitive element 1 is connected to the third end of the switch tube Q and one end of a first resistor R1, the second end of the switch tube Q is connected to the voltage converter, and the other end of the first resistor R1 and the negative electrode of the power supply are both grounded.

The power supplies input electric energy to the voltage converter through the switching tube Q, the voltage converter outputs 3.3V or 5V to other modules of the intelligent lock 3, and the power supplies of the intelligent lock 3 are batteries generally. According to the photosensitive action of the photosensitive element 1, the change of the illumination intensity can cause the change of the characteristics of the photosensitive element 1, and the voltage difference between the G pole and the S pole of the switching tube Q is further influenced, so that the on-off of the switching tube Q is realized. Taking the photo resistor R2 as an example, under normal conditions, the photo resistor R2 is arranged at the hidden light part of the lock, the received light is weak, and due to the photo characteristic of the photo resistor R2, the resistor presents high impedance, and R2 is Rd. The difference between the G pole and the S pole of the switching tube Q is equal to the difference between the voltage V3 far away from the grounding end and the power supply voltage V1 of R1 in the circuit, the maximum starting voltage of the switching tube Q is Vth, which is a negative value, the difference between the G pole and the S pole of the switching tube Q is Vg-Vs, which is V1R 1/(R1+ Rd) -V1, which is a negative value, Vgs is less than or equal to Vth, and the switching tube Q is in an on state to supply power to the whole lock. When the lockset is halted, the resetting operation is needed, and at this time, the light-transmitting area 2 of the lockset can be irradiated by the flashlight 4 of the mobile phone which is carried with people at ordinary times. When strong light irradiates, the photoresistor R2 receives strong light, the resistance value is reduced due to the photosensitive characteristic of the photoresistor, R2 is Rb, the voltage difference Vg-Vs between the G pole and the S pole of the switching tube Q is V1R 1/(R1+ Rb) -V1 is a negative value, Vgs is more than Vth, the switching tube Q is closed, and the whole device is powered off. In conclusion, according to the photosensitive characteristic of the photosensitive resistor, the lock complete machine is powered off and powered on to reset, the design is ingenious, the power is completely cut off, and the lock is reset to the maximum extent. When the lockset is halted, a user can reset the lockset by using the carried articles, and the lockset is simple to operate, convenient and fast.

Example 3

With reference to fig. 1, 2, 3, 4 and 5, in comparison with the technical solutions of

embodiments

1 and 2, the intelligent lock 3 of the present embodiment is configured such that the voltage converter is an LDO converter or a DCDC converter. When the voltage conversion voltage difference in the circuit is smaller, an LDO (low Dropout regulator) converter is selected, the voltage conversion voltage difference required by the converter is small, and the conversion efficiency is high; when the voltage conversion voltage difference in the circuit is large, a DCDC (direct Current) converter is selected, and the converter can convert the direct current voltage into the specified direct current voltage and has the characteristics of large output current, small static current, high conversion efficiency and the like.

Example 4

With reference to fig. 1, 2, and 3, in the intelligent lock 3 of this embodiment, compared with any one of the technical solutions of embodiments 1 to 3, the identification module is a fingerprint module connected to the voltage converter, and the fingerprint module includes a fingerprint acquisition module and a fingerprint identification module; the fingerprint acquisition module is connected with the fingerprint identification module.

The fingerprint collecting module collects fingerprints by utilizing the refraction and reflection principles of light. The light is emitted to the fingerprint through the prism, the refraction angle on the uneven lines of the fingerprint and the reflected light are different in brightness and darkness, and therefore the optical device collects picture information with different brightness and darkness degrees to finish fingerprint collection. The fingerprint identification module analyzes the fingerprint acquired by the fingerprint acquisition module, extracts the characteristics of the fingerprint, separates specific characteristic points to replace different fingerprint lines, compares the acquired fingerprint characteristics with fingerprint characteristics stored in a database of the fingerprint identification module one by one, judges whether the fingerprint belongs to the same fingerprint, and sends an unlocking signal to the main control module if the fingerprint comparison is successful, and the main control module receives the signal and controls the motor control module to unlock; if the fingerprint comparison is unsuccessful, the fingerprint module does not send a signal to the main control module. The fingerprint input mode is used for unlocking, and the method is simple, safe and reliable.

Example 5

With reference to fig. 1, 2, and 3, in the intelligent lock 3 of this embodiment, compared with any one of the technical solutions of embodiments 1 to 4, the identification module is a password touch key module connected to the voltage converter, and the password touch key module includes a touch screen, an RC control circuit, and a password identification module that are connected in sequence.

The password touch control module senses touch action by using capacitance voltage change of the RC control circuit to identify the password. The RC (resistor capacitor circuit) control circuit is connected with the touch screen, when a human hand approaches the touch screen, a capacitor is formed between the RC (resistor capacitor) control circuit and an electrode plate below the touch screen, and touch action is induced by detecting the change of the capacitor. The password identification module compares the password input through the touch screen and the RC control circuit with the correct password stored in the database, if the password comparison is successful, the password identification module sends an unlocking signal to the main control module, and the main control module receives the signal and controls the motor control module to unlock; if the password comparison is unsuccessful, the password identification module does not send a signal to the main control module. The unlocking is carried out by utilizing a password input mode, and the method is simple, safe and reliable.

Example 6

With reference to fig. 1, 2, and 3, in the intelligent lock 3 of this embodiment, compared with any one of the technical solutions of embodiments 1 to 5, the identification module is a card swiping module connected to the voltage converter, and the card swiping module includes a card reader and a card number identification module, which are connected in sequence. When the lock is unlocked, the card reader is close to the card reading position, and the card reader reads the card number of the card. Then the card number identification module determines whether to send signals to the main control module by comparing with the correct card number, if the card number comparison is successful, the card number identification module sends an unlocking signal to the main control module, and the main control module receives the signal and controls the motor control module to unlock; if the card number comparison is unsuccessful, the password identification module does not send a signal to the main control module.

Example 7

With reference to fig. 1, 2 and 3, compared with any one of the technical solutions of embodiments 1 to 6, the intelligent lock 3 of the present embodiment may be further modified as follows: the identification module is a face identification module connected with the voltage converter, and the face identification module comprises a camera and a face contour identification module which are sequentially connected. The camera collects images of human faces, and the human face recognition module recognizes the images by using a human face contour recognition algorithm built in the human face contour recognition module. Firstly, graying a face image acquired by a camera by a face contour recognition algorithm; secondly, the image is converted into a simple outline expression form by analyzing the brightness of the image, and a certain number of measured values are generated through the outline expression form; finally, the measured values are compared with the measured values stored in the database, if the measured values are similar to each other, the face recognition module sends an unlocking signal to the main control module, and the main control module receives the signal and controls the motor control module to unlock; if the difference is larger than the measured value, the face recognition module does not send a signal to the main control module. The face recognition is used for unlocking, and the unlocking method is simple, safe and reliable.

Example 8

With reference to fig. 1, 2, 3, 4 and 5, compared with any one of the technical solutions in embodiments 1 to 7, the intelligent lock 3 in this embodiment may be further modified as follows: when the switching tube Q is an MOS tube, the first end of the switching tube Q is a source electrode, the second end of the switching tube Q is a drain electrode, and the third end of the switching tube Q is a grid electrode; or, when the switching tube Q is a triode, the first end of the switching tube Q is an emitter, the second end of the switching tube Q is a collector, and the third end of the switching tube Q is a base.

The basic principle of the MOS tube is the same as that of the triode, and the on-off of a circuit power supply is realized according to the characteristics of the MOS tube or the triode, so that the reset operation of the lock is realized. Taking a MOS transistor as an example, the maximum starting voltage of the MOS transistor is Vth, and Vth is a negative value, under normal conditions, the G-pole and S-pole differential pressure Vgs of the MOS transistor is Vg-Vs-V1 × R1/(R1+ Rd) -V1 is a negative value, and at this time, Vgs is less than or equal to Vth, and the MOS transistor is in an on state to supply power to the whole lock. When the lock is halted, a reset operation is required, the lock light-transmitting area 2 is irradiated by strong light, the G pole and S pole pressure difference Vgs-Vs V1R 1/(R1+ Rb) -V1 of the MOS tube is negative, Vgs is larger than Vth, the MOS tube is closed, and the whole device is powered off. The characteristic of MOS pipe is utilized, and the tool to lock outage circular telegram is realized to the control operation that resets, and design benefit can realize furthest's resetting.

Example 9

With reference to fig. 1, compared with any one of the technical solutions of embodiments 1 to 8, in the intelligent lock 3 of the present embodiment, the light-transmitting area 2 on the lock is made of a light-transmitting material; or an opening is arranged on the lockset to be used as a light-transmitting area 2, and the material of the light-transmitting area 2 can be silicate glass, polymethyl methacrylate or transparent glass fiber reinforced plastic. The light-transmitting material is used for arranging the light-transmitting area 2 at the invisible part of the lockset, natural light is not easy to irradiate the invisible part, and the transmitted light is weak, so that the change of the photoresistance can not be caused. When the tool to lock crashed and needs to reset, light transmission area 2 sees through the illumination of 4 torches of cell-phone again very easily, and photosensitive element 1 break-make realizes the tool to lock break-make electricity, realizes the tool to lock operation that resets.

Example 10

With reference to fig. 1, 2, 3, and 5, in the smart lock 3 of this embodiment, compared with any one of the technical solutions of embodiments 1 to 9, the photosensitive element 1 is a photosensitive resistor R2, a photosensitive diode D1, or a phototriode.

When the photosensitive element 1 is the photodiode D1, the cathode of the photodiode D1 is connected to the first terminal of the switching tube Q, and the anode of the photodiode D1 is connected to the third terminal of the switching tube Q and one end of the first resistor R1. When the photosensitive element 1 is a phototriode, the E pole of the phototriode is connected with the first end of the switch tube Q, and the C pole of the phototriode is connected with the third end of the switch tube Q and one end of the first resistor R1. The basic principle of the photosensitive diode is the same as that of the phototriode, and the difference is that the phototriode converts an optical signal into an electric signal and simultaneously amplifies a signal current, so that the photosensitive diode has higher sensitivity. The base of the general phototriode is in the tube, and only the collector (C pole) and emitter (E pole) lead wires (also the base wire is led out). When the voltage is constant, the larger the illumination intensity is, the larger the current passing through the photosensitive diode and the photosensitive triode is. Under the normal working condition of the lockset, the extremely small current passing through the photosensitive diode and the photosensitive triode due to weak received light is I1, the difference between the G pole and the S pole voltage of the switching tube Q is equal to the difference between the voltage V3 far away from the grounding end of R1 in the circuit and the power supply voltage V1, the maximum starting voltage of the switching tube Q is Vth, the Vth is a negative value, the difference Vgs between the G pole and the S pole voltage of the switching tube Q is Vg-Vs I1R 1-V1 which is a negative value, the Vgs is less than or equal to Vth, and the switching tube Q supplies power to the whole lock in a switching-on state. When the lockset is halted, the resetting operation is needed, and at this time, the light-transmitting area 2 of the lockset can be irradiated by the flashlight 4 of the mobile phone which is carried with people at ordinary times. When strong light irradiates, the photosensitive diode or the photosensitive triode receives the strong light, the current passing through the photosensitive diode or the photosensitive triode is increased to I2 due to the photosensitive characteristic of the photosensitive diode or the photosensitive triode, the voltage difference Vgs-Vs between the G pole and the S pole of the switching tube Q is I2R 1-V1, and at the moment, Vgs is greater than Vth, the switching tube Q is closed, and the whole device is powered off. In conclusion, according to the photosensitive characteristic of the photosensitive diode or the photosensitive triode, the whole lockset is powered off and powered on to reset, the design is ingenious, the power is completely off, and the lockset is reset to the maximum extent. When the lockset is halted, a user can reset the lockset by using the carried articles, and the lockset is simple to operate, convenient and fast.

Example 11

The intelligent lock resetting method provided by the embodiment comprises the following steps:

A. constructing the intelligent lock 3 described in any one of embodiments 1-10;

B. when the intelligent lock 3 is halted, a flashlight of a portable mobile phone 4 is used for irradiating the light-transmitting area 2 of the intelligent lock 3;

C. then, the flashlight of the mobile phone 4 is moved away from the light-transmitting area 2 of the intelligent lock 3, so that the reset operation of the intelligent lock 3 is realized;

the present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. An intelligent lock comprises a power supply and a voltage converter, and is characterized by further comprising a photosensitive module, a motor control module, a main control module and an identification module; the power supply, the photosensitive module and the voltage converter are sequentially connected in series, and the identification module, the main control module and the motor control module are all connected with the voltage converter; the identification module and the motor control module are connected with the main control module; the photosensitive module is arranged at a light-transmitting area on the lockset.

2. An intelligent lock as claimed in claim 1, wherein the photosensitive module comprises a photosensitive element, a first resistor R1 and a switch Q, one end of the photosensitive element is connected to the positive terminal of the power supply and the first terminal of the switch Q, the other end of the photosensitive element is connected to the third terminal of the switch Q and one end of a first resistor R1, the second terminal of the switch Q is connected to the voltage converter, and the other end of the first resistor R1 and the negative terminal of the power supply are both grounded.

3. An intelligent lock according to claim 1, wherein the voltage converter is an LDO converter or a DCDC converter.

4. The intelligent lock according to claim 1, wherein the identification module is a fingerprint module connected with the voltage converter, and the fingerprint module comprises a fingerprint acquisition module and a fingerprint identification module; the fingerprint acquisition module is connected with the fingerprint identification module.

5. The intelligent lock according to claim 1, wherein the identification module is a password touch key module connected with the voltage converter, and the password touch key module comprises a touch screen, an RC control circuit and a password identification module which are connected in sequence.

6. A smart lock as claimed in claim 1, wherein the identification module is a card swiping module connected to the voltage converter, the card swiping module comprising a card reader and a card number identification module connected in series.

7. An intelligent lock as claimed in claim 1, wherein the recognition module is a face recognition module connected to the voltage converter, and the face recognition module comprises a camera and a face contour recognition module which are connected in sequence.

8. The intelligent lock according to claim 2, wherein when the switching tube Q is an MOS tube, the first end of the switching tube Q is a source electrode, the second end of the switching tube Q is a drain electrode, and the third end of the switching tube Q is a gate electrode; or, when the switching tube Q is a triode, the first end of the switching tube Q is an emitter, the second end of the switching tube Q is a collector, and the third end of the switching tube Q is a base.

9. An intelligent lock as claimed in claim 1, wherein the light-transmitting region of the lock is made of a light-transmitting material; or the lockset is provided with an opening as a light-transmitting area, and the light-transmitting area can be made of silicate glass or polymethyl methacrylate or transparent glass fiber reinforced plastic.

10. A smart lock as claimed in claim 2, wherein the light sensitive element is a light sensitive resistor R2, a light sensitive diode D1 or a phototriode.