FIELD OF THE INVENTION

The present invention relates to security device. More particularly, the present invention relates to a secure digital lock system. Further the present invention relates to a method of working of the secure digital lock system.

BACKGROUND OF THE INVENTION

Security devices, such as padlocks and other types of conventional locks, are used, for example, to prevent access to a room, building, enclosure, container, or piece of equipment. Exemplary padlocks include those opened by a key and those opened by manipulation of lock components in accordance with a unique combination. In a conventional padlock, a shackle is secured within a lock body by one or more internal locking members that are received in corresponding notches in the shackle to prevent axial withdrawal of the shackle from the lock body. Certain conventional padlocks of this type may be susceptible to unauthorized opening by manipulation of the locking members using a lock-picking tool or other instrument inserted into the lock body [e.g., through the shackle holes] to disengage the locking members from the shackle notches.

In another conventional invention describes locking arrangements for securing a lock, such as, for example, a padlock, in a locked condition against unauthorized attempts to unlock or open the lock. According to one exemplary aspect of the present application, a lock may include a locking mechanism having a blocker moveable between locked and unlocked positions, and one or more components that allow movement of the blocker to the unlocked position upon proper manipulation of the lock, and that secure the blocker against unauthorized movement to the unlocked position.

Combination locks which permit the user to change the combination are well-known. A plurality of combination dials and cooperating sleeves rotate about a common axis. The sleeves are normally coupled to corresponding dials for rotation therewith. Except when the dials are on-combination, the sleeves block movement of a slide relative to the sleeves that is required to open the lock. To change the combination, the sleeves are uncoupled from the corresponding dials by moving the sleeves axially relative to the dials. The sleeves are moved axially in one direction relative to the combination dials to open the lock and are moved axially in the opposite direction to permit the combination to be changed. IN201841037059A relates a digital padlock. The present relates to the field of digital padlock using wireless communication system. A digital padlock comprises of a main body with a front cover and a shackle, said main body consists of a master centre wherein said master centre comprises of impact sensing means and shackle position sensing means, said sensing means are connected to a microcontroller and said microcontroller is connected to the user interface device through wireless communication means. However, the communication happens using Bluetooth, Zigbee or Wi-Fi. Sensors are used for alerting the shackle movement.

AU2015101796B4 relates to a Keyless-Operation Padlock, System and Method of Use. A keyless- operation padlock having a padlock body, a shackle, a locking mechanism located in the body and associated with the shackle to lock the shackle to the body in a locked condition and to release at least a part of the shackle in an unlocked condition, the locking mechanism including a signal receiver, at least one control assembly and at least one actuator, the locking mechanism being unlocked upon verification of a signal including an unlock code transmitted by a mobile computing device. However the unique identifying code is generated from a personal computing device whereas in the present invention, the user manually punches the code.

CN205445195U relates to a linkage padlock system. The utility model belongs to the technical field of bag lock, in particular to linkage padlock system, including intelligent padlock, drive arrangement, power supply unit, communication module and mobile device, the intelligence padlock passes through communication module with the mobile device communication, the intelligence padlock sets up to two at least, and intelligence the padlock through the linkage push -and -pull rod with drive arrangement connects, drive arrangement with communication module all with power supply unit connects, the intelligence padlock includes digit wheel subassembly and TSA lock benevolence. Compared with the prior art, the utility model discloses a mode of unblanking is various, can carry out intelligence through the mobile device and unblank, and intelligent degree is high, and the convenient and fast that unblanks, locks can meet the need of market. And this system can carry out the unblock operation to two padlocks simultaneously to improve the efficiency of unblanking. However voice or mobile communication is used to block the unlocking mechanism, whereas in the present invention, block code is used to block the unlocking mechanism which is generated from mobile application. CN105201304B relates to a kind of intelligence padlock system anu miemgeni unlocking meinou. The invention belongs to bag lock technical field, more particularly to a kind of intelligent padlock system, including intelligent padlock and mobile device, intelligent padlock and mobile device communicate ; Intelligent padlock includes upper lock housing, lower lock housing, push button, fixing piece, sliding component, knob, driving device, circuit board and for electric installation, knob sleeve is set on center-pole, push button is set to the side of knob, it is connect with driving device for electric installation and communication module, communication module is also connect with for electric installation, driving device is set to the side of knob, and driving device can be moved towards or away from knob, sliding component is set between push button and fixing piece, and circuit board is connect with driving device, for electric installation and communication module ; Control module is provided in mobile device, control module is communicated by communication module and circuit board. Compared with the existing technology, the present invention can carry out intelligent unlocking by mobile device, and intelligence degree is high, unlock, be latched convenient and efficient, disclosure satisfy that the market demand. However this invention uses mechanical dials to set passcode.

WO1998032296A1 relates to a remote control keyless padlock. A remotely controlled padlock apparatus wherein the padlock will release its shackle upon activation when a code signal is received from a remote transmitter device. The padlock apparatus invention uses micropower technology to provide a padlock that can run one or more years on a set of AA batteries or indefinitely with rechargeable cells supported by solar batteries [Solar cells]. The padlock apparatus incorporates an illumination feature for use in time of darkens. A user only needs to point the transmitter in the general direction of the padlock and press the transmit button. At that point the padlock will open and illuminate the local area for a predetermined amount of time, indicating the exact location of the padlock. However, this invention uses remote signal based like automobile door lock using radio frequency.

The current digital lock system replacing the mechanical types uses NFC or Wi Fi or Bluetooth or RFID or Bio metric methods to access and control the locks.

The disadvantages of the current digital lock systems are i] Radio signals can be cloned ii] Number of users to access the lock is restricted e.g. In biomeuiu usei s iingeipnin io ue registered and the number of person who can register is restricted to say 50 to 100. iii] User to have completed certain pre-requisite and which cannot happen instantaneously e.g. In biometric user’s fingerprint to be registered prior to access the lock

Accordingly, there exists a need for a secure digital lock system. Further there exists a need for a method of working of the secure digital lock system.

OBJECTS OF INVENTION

It is the primary object of the present invention to provide a keyless secure digital lock system.

It is another object of the present invention to provide a safe, secured, sharable system to overcome the existing digital lock disadvantages.

It is another object of the present invention to provide a system which can be integrated with any other third-party systems to have end user access to lock in dynamic manner.

It is another object of the present invention to provide a system to control random code/ hacking by having restriction in number of tries and to provide a provision to have a voluntary block by the owner.

It is another object of the present invention, wherein the secure digital lock system allows the owner to assign who to use, period of usage to the second or third party users.

It is another object of the present invention, wherein the secure digital lock system is mobile application-based generation with non-repetitive pass codes to unlock, with a burglar alarm and with a secured physical asset movement.

It is another object of the present invention, wherein the secure digital lock system is a cloud based Application programming interface [APIs] for third party system integration for commerce/e- commerce e.g. food delivery systems, logistics/courier delivery system, temporary relative home stay, paying guest, hostel, office and the like. It is another object of the present invention, wherein the secure digital IOCK sysiem anows mumusci authorization/privileges with admin functionality.

It is another object of the present invention, wherein the secure digital lock system provides an innovative shackle design for a tamper proofing.

It is another object of the present invention, wherein the secure digital lock system provides an innovative CAM based operation for locking/unlocking mechanism.

It is another object of the present invention, wherein the secure digital lock system provides dynamic braking system to ensure smooth operation.

It is another object of the present invention, wherein the secure digital lock system provides alarm system in case of shackle breakage or tampering.

It is another object of the present invention, wherein the secure digital lock system provides blocking key entry and retries unit to ensure random code/hacking access.

It is another object of the present invention, wherein the owner of the lock can block any passcode entry and only the owner can unblock it.

It is another object of the present invention, wherein the secure digital lock system provides stop timer-controlled access.

It is another object of the present invention, wherein the secure digital lock system provides standby battery system in case of main battery drain off.

It is another object of the present invention, wherein the secure digital lock system provides provision to charge using USB port.

It is another object of the present invention, wherein the secure digital lock system provides lock identification using QR code. It is another object of the present invention, wherein the secure dignai IOCK sysiem pioviues _l ougn hardened alloy casing.

It is another object of the present invention to provide a cost effective secure digital lock system.

It is another object of the present invention, wherein the secure digital lock system does not alter the existing latches or does not require any installations to be done.

It is another object of the present invention, wherein the secure digital lock system has a virtual communication with the mobile application for operation and the locks are suitable for remote operations.

SUMMARY OF THE INVENTION

One or more of the problems of the conventional prior art may be overcome by various embodiments of the present invention.

It is the primary aspect of the present invention to provide a digital lock system, comprising: multiple user profiles with user devices associated with plurality of pass codes in the mobile application; wherein multiple user profiles comprises of atleast one primary user profile and plurality of secondary user profiles a plurality of digital lock devices, each comprising: a shackle comprising a lock mechanism to hold a top casing and a bottom casing; a key pad membrane comprising two or more hard press keys; an electronic circuit board comprising a microprocessor and a firmware; a motor; a cam; a locking lever; and an alert unit; wherein the top casing is fastened to the bottom casing, the microprocessor senses hacksawed of shackles, pulling or breakage and alert the primary user profile with the alert unit this is activated by a limit switch and a spring linked to the shackle; wherein the electronic circuit board controls the opening oi ciosmg oi me uignai KICK devices based on authentication pass codes, and wherein the mobile application in the user devices and the firmware in the electronic circuit board are communicated virtually to power the motor to drive the cam and the locking lever to unlock the digital lock devices on receiving the authentication pass code signals from the users via hard press keys on the key pad membrane.

It is another aspect of the present invention to provide a digital lock system, wherein the key pad membrane holds two or more hard press keys to enter the passcode by the secondary users and holds a slit to view a display unit attached to the electronic circuit board.

It is another aspect of the present invention to provide a digital lock system, wherein the top casing comprises a provision to insert the shackle, to paste a quick response (QR) code, to grip the key pad membrane, and with slots to view display units like OLED display and LED to indicate charging activity of the power sources.

It is another aspect of the present invention to provide a digital lock system, wherein the QR code represents the unique serial number of each digital lock device.

It is another aspect of the present invention to provide a digital lock system, wherein the limit switch senses the unwanted movement of the shackle or breaking of the shackle.

It is another aspect of the present invention to provide a digital lock system, wherein a top housing mechanism is fixed to the inside part of the top casing held using one or more screws.

It is another aspect of the present invention to provide a digital lock system, wherein a bottom housing mechanism fixed to the inside part of the bottom casing, houses the locking lever, a locking lever spring, the cam, a geared DC motor, a brake lever, a brake lever joint, a brake lever spring and a circlip.

It is another aspect of the present invention to provide a digital lock system, wherein the bottom casing comprises slots to place one or more power sources like main battery and a secondary battery. It is another aspect of the present invention to provide a digital lock system, wherein the primary battery and the secondary battery are connected to the electronic circuit board through a power sliding switch to alternate between the power sources for feeding the power for operation.

It is another aspect of the present invention to provide a digital lock system, wherein a shackle locking screw holds the shackle in position for a movement and is linked to the limit switch which acts as an input in case of break-ins.

It is another aspect of the present invention to provide a digital lock system, wherein an umbrella cap/cover sliding over the shackle sits over the top casing denies entry of dust and water through the gaps of the shackle.

It is another aspect of the present invention to provide a digital lock system, wherein one or more screws holding the electronic circuit board is part of the top casing with an intermediate spacer which serve as a holding and insulator mechanism to the top casing and the electronic circuit board.

It is another aspect of the present invention to provide a digital lock system, wherein the top casing whose one side comprises a provision to hold the shackle spring which empowers the release of the shackle from the locking lever and the top casing whose another side comprises the shackle locking screw to guide the shackle during its movement of release.

It is another aspect of the present invention to provide a digital lock system, wherein the electronic circuit board comprises the microprocessor with computer implementable instructions enable to run and perform the authentication of the secondary user profiles and the microprocessor is programmed to fetch and compare the secondary user input with the primary user input.

It is another aspect of the present invention to provide a digital lock system, wherein the primary user profile is configured to perform a voluntary block to an unauthorized secondary user profile.

It is another aspect of the present invention to provide a method of working of the digital lock system, comprising: embedding a microprocessor in an electronic circuit board inside the digital lock device; receiving an authentication pass code in the mobile applicauon or muiupie seconuaiy user devices from atleast one primary user device; entering the received authentication pass code in a key pad membrane configured in a digital lock device by the secondary user profile; transferring of the above user authentication input code to the microprocessor; fetching and authenticating the code by the microprocessor; executing programs by the embedded microprocessor programming logic; unlocking of the digital lock device if the received pass code matches with the expected data of the primary user profile; and locking/blocking of the digital lock device if the received pass code does not matches with the expected data of the primary user profile, wherein the electronic circuit board comprises the microprocessor with computer implementable instructions enable to run and perform the authentication of the secondary user profiles, the microprocessor is programmed to fetch and compare the secondary user profile input with the primary user profile input, wherein the embedded microprocessor programming logic is configured to control the opening and locking of the digital lock device, and wherein if wrong pass code is pressed by the secondary user or if hacksawed of a shackle, and pulling or breakage of the shackle beyond a threshold limit, the primary user profile is alerted with an alert unit this is activated by a limit switch and a spring linked to the shackle, and after two or more wrong entries the digital lock device is blocked by the primary user profile and no further entry of codes allowed for predetermined time limit.

BRIEF DESCRIPTION OF THE DRAWINGS:

So that the manner in which the features, advantages and objects of the invention, as well as others which will become apparent, may be understood in more detail, more particular description of the invention briefly summarized above may be had by reference to the embodiment thereof which is illustrated in the appended drawing, which form a part of this specification. It is to be noted, however, that the drawing illustrates only a preferred embodiment of the invention and is therefore not to be considered limiting of the invention's scope as it may admit to other equally effective embodiments. Figure 1 shows the isometric view of the digital lock in arrangeniem io me mam icaime or me present invention.

Figure 2 portrays the exploded view of the digital lock in arrangement to the main feature of the present invention.

Figure 3 explains the exploded view of the sub assembly of the motor, locking lever and dynamic braking mechanism of the digital lock in accordance to the present invention.

Figure 4 describes the exploded view of the shackle sub assembly in arrangement to the main feature of the present invention.

Figure 5 outlines the main metal casing [top and bottom casing] which forms the body of the digital lock in arrangement to the main feature of the present invention.

Figure 6 defines the block diagram of the Electronic circuit board of the digital lock in arrangement to the main feature of the present invention.

Figure 7 describes the exploded view of the sub assembly of the Electronic circuit board which is the brain of the digital lock in arrangement to the main feature of the present invention.

Figure 8 illustrates the photograph of the digital lock device according to the present invention. Figure 9 illustrates the flowchart of the working of method of unlocking the digital lock device according to the present invention.

Figure 10 illustrates the flowchart of the operation of burglar alarm operation according to the present invention.

DESCRIPTION FOR DRAWINGS WITH REFERENCE NUMERALS:

[1] Shackle

[2] Shackle locking screw

[3] Safety Limit Switch

[4] M4 Screw

[5] Shackle Spring

[6] Umbrella Cap/cover

[7] Top Casing

[8] Power sliding switch

[9] Bottom Casing

[10] USB Dust cover

[11] Buzzer/alert unit

[12] M4 Allen Screw [13] Main Battery

[14] Emergency/secondary Battery

[15] Electronic Circuit Board

[ 16] Electronics Circuit Holding Spacer/intermediate spacer [17] M3 Screw Holding Circuit Board

[ 18] Key Pad Membrane

[19] M3 Allen Screw

[20] Top Housing Mechanism

[21] Locking Lever [22] Circlip

[23] Locking Lever Spring

[24] Cam

[25] Bottom Housing Mechanism

[26] M4 Screw [27] Geared DC Motor

[28] Brake Lever joint

[29] Brake Lever

[30] Brake lever Spring

[31] QR Code [32] LED

[100] Digital lock device

[200] Method of working of the digital lock system

[201] Entering the received authentication pass code in a key pad membrane configured in a digital lock device by the secondary user profile [202] Fetching and authenticating the code by the microprocessor

[203] Unlocking of the digital lock device if the received pass code matches with the expected data of the primary user profile

[204] Locking/blocking of the digital lock device if the received pass code does not matches with the expected data of the primary user profile [300] If wrong pass code is pressed by the secondary user or if hacksawed of a shackle, and pulling or breakage of the shackle beyond a threshold limit

[301] The primary user profile is alerted with an alert unit this is activated by a limit switch and a spring linked to the shackle DETAILED DESCRIPTION OF THE INVENTION

It is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The present disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

The present invention relates to security device. More particularly, the present invention relates to a secure digital lock system. Further the present invention relates to a method of working of the secure digital lock system.

The present invention relates to smart lock system, in padlock arrangement. In particular, the present system addresses the following, no limits in number of users per lock, no direct communication to avoid possible cloning and provide dynamism in user access.

The smart digital lock system consists of top and bottom housing which has weather shield coating. Hard press Keypads are provided on the front end of the top housing, allowing to enter the pass code for unlocking the system. Unique shackle design with connected levers addresses the alert needs and a method to fasten the housings. Any cut open of the shackle by hacksaw or by other means [beyond certain threshold limit of the pulling or hammering force exhibited over the shackle] will trigger the alarm system to ring with a 72 Decibel buzzer noise. The passcode entry on validation power the motor and cam operation to unlock the system. More than 3 wrong entries the system blocks further entry for security reasons.

User can do a voluntary block by entering 6-digit code provided through the mobile app to block the entire system. This voluntary block is a unique feature which is not present in any other type of digital locks in the market. Unblocking also requires a set of 6-digit passcode which is provided in the app after validating certain security questions which was registered by the user.

The digital lock system is integrated with any other third-party systems to have end user access to lock in dynamic manner e.g. Food Delivery Merchant can integrate the digital lock system through API and give a facility for the end customer to open the lock and nowhere in between the source and destination the carriers will not be able to open the lock. This elimniaies me pie-iegisuauon or me user authentication in to the lock firmware.

Figure 1 shows the isometric view of the smart lock in agreement to the main feature of the present invention. The main parts of the smart lock comprise of Shackle [1] which is the key component which has the lock mechanism to hold top casing [7] and bottom casing [9] apart from the intended main purpose. The silicon umbrella cover [6] protects any water or dust entry into the lock which is part of the shackle assembly. Key pad membrane [ 18] hold the hard press keys to enter the passcode by the user and also hold a slit to view the OLED display attached to the Electronics Circuit Board [15]. The top housing also has provision to have QR code [31] which represents the serial number of the lock. The top housing has also a round slot [32] to display the LED to indicate charging activity of the batteries.

Figure 2 portrays the exploded view of the smart lock in arrangement to the main features of the present invention. All the main components of the smart lock system are shown with proper numbering.

Figure 3 explains the sub assembly of the motor, locking lever and dynamic braking mechanism of the smart lock in accordance to the present invention. Top housing mechanism [20] is fixed to the inside part of the top housing [7] held using screws [19]. The bottom housing mechanism [25] houses the locking lever [21], locking lever spring [23] cam [24], geared DC motor [27], brake lever [28], brake lever joint, brake lever spring [30] and circlip [22]. This bottom housing mechanism holds the heart of the smart lock system.

Figure 4 describes the shackle sub assembly in arrangement to the main feature of the present invention. Shackle has provision to place the umbrella cap [6]. A guiding screw [2] holds the shackle in position for a proper movement and also linked to the limit switch [3] which acts as input in case of break-ins. Shackle acts like a screwdriver to fasten the screw [4] to hold top and bottom casing. The limit switch and the spring [5] act in combination towards the alert system during the pull out or shackle hacksawed.

Figure 5 outlines the main metal casing which forms the body of the smart lock in arrangement to the main feature of the present invention. The top casing [7] which is part of the main body of the smart IOCK geis lasieneu io me uouom housing [9] of the smart lock. The top housing has the provision to insert the shackle [1], paste QR code sticker [32], grip key pad membrane [18], slots to view OLED display and LED [32]. Umbrella cover [6] sliding over the shackle also sits over the top part of the housing denies entry of dust and water through the gaps of the shackle. Screws [17] holding the Electronics circuit board is part of the top housing with an intermediate spacer [16] which serve as a holding and insulator mechanism to the body and the electronics circuit board. On one side the top housing has provision to hold shackle spring [5] which empowers the release of the shackle from locking lever and another side there is a shackle locking screw [2] to guide shackle during its movement of release. Further top holds the Safety limit switch [3] which senses the unwanted movement of shackle or shackle breaks.

The bottom casing [9] part has slots to place the Main Battery [13], Emergency Battery [14] and Electronics Circuit Board [15] in position. The bottom housing under belly side has 3 opening to accommodate Buzzer [11], exhibit charging ports of the electronics circuit board for battery charging, which is protected by USB dust cover [10] and power sliding switch [8] to switch between main battery [13] and emergency battery [14].

Figure 6 define the block diagram of the Electronic circuit board which is the brain of the smart lock in arrangement to the main feature of the present invention.

Figure 7 describes the sub assembly of the Electronic Circuit Board of the smart lock in arrangement to the main feature of the present invention. Key pad membrane [18] which gets the passcode input is connected to the Electronic circuit board [15]. Holding spacer [16] acts as an insulator and holding mechanism of the Electronic circuit board with the top casing [7] of the smart lock, also additional screw [17] is fastened to hold the electronic circuit board in position. Primary Main Battery [13] and Secondary emergency battery [14] are connected to the electronic circuit board through power sliding switch [8] to alternate between the power sources which feeds the required power for operation.

Referring to Figure 9, the flowchart of the working of method of unlocking the digital lock device according to the present invention is illustrated. Referring to Figure 10, the flowchart of the operation of burglar alarm operation according to the present invention is illustrated. A method [200] of working of the digital lock system, comprising: embedding a microprocessor in an electronic circuit board [15] inside me uignai KICK uevice L I ouj , receiving an authentication pass code in the mobile application of multiple secondary user devices from atleast one primary user device; entering [201] the received authentication pass code in a key pad membrane [18] configured in a digital lock device [100] by the secondary user profile; transferring of the above user authentication input code to the microprocessor; fetching and authenticating [202] the code by the microprocessor; executing programs by the embedded microprocessor programming logic; unlocking [203] of the digital lock device [100] if the received pass code matches with the expected data of the primary user profile; and locking/blocking [204] of the digital lock device [100] if the received pass code does not matches with the expected data of the primary user profile.

The electronic circuit board [15] comprises the microprocessor with computer implementable instructions enable to run and perform the authentication of the secondary user profiles. The microprocessor is programmed to fetch and compare the secondary user profile input with the primary user profile input. The embedded microprocessor programming logic is configured to control the opening and locking of the digital lock device [100]. If wrong pass code is pressed by the secondary user or if hacksawed [300] of a shackle [1], and pulling or breakage of the shackle [1] beyond a threshold limit, the primary user profile is alerted [301] with an alert unit [11] this is activated by a limit switch [3] and a spring [5] linked to the shackle [1], and after two or more wrong entries the digital lock device [100] is blocked by the primary user profile and no further entry of codes allowed for pre-determined time limit.

Unlocking system uses passcode only through keypad entry as the interface. Alarm: Tampering by Push or pull effect on the shackle beyond the threshold limit creates unwanted movement of shackle which passes the movement to roller that switches to trigger alarm. No wireless communication, only Virtual communication between lock and the mobile application. Unlocking can happen only at in-person on premises of the lock. Access denied is shown as “wrong” to the user through OLED display. Running proprietary algorithm in mobile application and in the microprocessor of the device helps to match the passcode match in order to unlock the system. User manually punches the code through keypad. Passcode generated and can be shared over a call, email etc. to key in for unlocking purpose. Pass codes are used to unlock and block. User rights and privileges are controlled in mobile application. Rectangular lever mechanism useu wnn cam ioi locking mechanism. Unlock code is programmatic and no human interface. Only one way is there i.e. by entering the pass code to unlock the system. Electronics and Mechanical lock, uses digital 4 digit passcode entries are done to unlock the system. No location based control. Passcode from mobile application on entry in the lock is validated to unlock the system. Block code is used to block the unlocking mechanism which is generated from mobile application. Entry of passcode is through keypad on the lock, manual and not through wireless. No dials or number to be rotated. Battery powered- Primary and secondary battery source. No remote unlocking possible through internet connectivity to the lock directly from a remote device. Uses motor and gear box to operate shackle. There are no servers and database involved in the system.

The digital lock system has virtual communication between the mobile application and the firmware in the electronic circuit board, on passcode authentication signals the motor to drive cam and lever to unlock. A smart lock consists of intelligent system to sense any breakage and alert in the neighborhood with a buzzer alarm sound this is activated by the limited switch and spring linked to the shackle. The smart lock has provision to add user instantly in to third party systems through APIs. The smart lock has a unique shackle which incorporates a method to fasten the top and bottom casing wherein the shackle acts like a screwdriver. The smart lock has an emergency backup battery in case of primary battery power has drained off. The smart lock has dynamic braking system to control the cam rotation to one revolution precise using mechanical interface of spring and joints. The smart lock has a unique shape of locking lever and cam for a smooth operation. The smart lock has an exclusive algorithm which runs the mobile app and in the firmware for a proper virtual communication. The smart lock has a custom-made keypad membrane to fit to size and for a better longevity of operation. The smart lock has the program to ensure to protect from wrong tries and to block the user for any further unlocking operations. The present invention relates to the smart digital padlock using virtual communication system. The smart lock system comprises of casing, shackle, electronic circuit board, key pad membrane, Battery, cam and lever mechanism with proper housing and accessories which satisfies the claim made in this art.

Advantages:

• A smart lock which has provision to add user instantly in to third party systems through APIs. • A smart lock which has a unique shackle which incorporates a memoa to rasien me top ana bottom casing wherein the shackle acts like a screwdriver.

• A smart lock which has an emergency backup battery in case of primary battery power has drained off.

• A smart lock which has dynamic braking system to control the cam rotation to one revolution precise using mechanical interface of spring and joints.

• A smart lock which has a unique shape of locking lever and cam for a smooth operation.

• A smart lock which has an exclusive algorithm which runs the mobile app and in the firmware for a proper virtual communication.

• A smart lock which has a custom-made keypad membrane to fit to size and for a better longevity of operation.

• A smart lock which has the program to ensure to protect from wrong tries and to block the user for any further unlocking operations. Although, the invention has been described and illustrated with respect to the exemplary embodiments thereof, it should be understood by those skilled in the art that the foregoing and various other changes, omissions, and additions may be made therein and thereto, without parting from the spirit and scope of the present invention.