CN111915772B - A method of remote unlocking - Google Patents

Abstract

The invention discloses a remote unlocking method, which comprises the following steps: registering and acquiring a unique account; the unique serial number of the intelligent container lock is recorded by using a mobile communication terminal, the serial number of the intelligent container lock is encrypted by adopting an asymmetric algorithm, and a block chain corresponding to the unique serial number of the intelligent container lock is established; the encrypted numbers are added with corresponding timestamps and uploaded to corresponding block chains; feeding back the private keys obtained by encryption to the mobile communication terminal and the intelligent container lock respectively; the mobile communication terminal initiates an unlocking request and provides an unlocking private key; if the private key provided by the mobile communication terminal is consistent with the private key stored in the block chain, entering a numbering request of the intelligent container lock, otherwise exiting; the mobile communication terminal acquires the serial number of the intelligent container lock and sends the serial number of the intelligent container lock on the mobile communication terminal to the intelligent container lock; if the two lock unlocking signals are consistent, the controller issues an unlocking signal to the driving mechanism to unlock the intelligent lock of the container, and otherwise, the unlocking fails.

Description

A method of remote unlocking

technical field

The invention relates to the technical field of container intelligent locks, in particular to a method for remote unlocking.

Background technique

With the development of society, logistics transportation is applied to a variety of transportation carriers, the most important of which is the use of containers, which currently reflects a new, high-efficiency and high-benefit transportation mode. However, in the process of transportation, in order to ensure the safety of the goods, it is usually necessary to unlock the transport device and check the goods at the starting point, transfer station or terminal station. At present, the common unlocking methods on the market include password unlocking, Bluetooth unlocking, fingerprint unlocking, and card-swiping unlocking. Among them, bluetooth unlocking is the mainstream of the development of the prior art; however, it requires short-distance operation; in the prior art, there is no remote unlocking method for container smart locks.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a method for remote unlocking, and the technical scheme adopted in the present invention is as follows:

A method for remote unlocking, which is used for container smart locks. The container smart locks include a lock body and a lock rope fixing device that are fixed on the container door in one-to-one correspondence; A storage battery, a controller and a drive mechanism; the controller is provided with a SIM card communication circuit and a memory;

The method for remote unlocking comprises the following steps:

Encryption phase:

Use a mobile communication terminal to register and obtain a unique account;

Utilize the mobile communication terminal to enter the unique number of the container smart lock, and use an asymmetric algorithm to encrypt the number of the container smart lock, and establish a block chain corresponding to the unique number of the container smart lock; The number of the lock is stamped with the corresponding timestamp and uploaded to the corresponding blockchain;

Feedback the private key obtained by encrypting the serial number of the container smart lock to the mobile communication terminal and the container smart lock respectively;

Unlocking stage:

The mobile communication terminal initiates an unlock request and provides a private key for unlocking;

If the private key provided by the mobile communication terminal is consistent with the private key stored in the blockchain, enter the number request of the container smart lock, otherwise, exit the unlock;

The mobile communication terminal obtains the serial number of the container smart lock, and sends the serial number of the container smart lock on the mobile communication terminal to the container smart lock;

If they are consistent, the controller sends an unlock signal to the drive mechanism to open the container smart lock, otherwise, the unlock fails.

Further, the remote unlocking method further includes encrypting the account number of the mobile communication terminal after unlocking and uploading it to the blockchain corresponding to the serial number of the container smart lock.

Further, the remote unlocking method also includes obtaining the unique number of the container smart lock, and making a request for secure access to the blockchain, and obtaining the private key corresponding to the unique number of the container smart lock.

Further, the mobile communication terminal uses identity information for registration.

Further, a bluetooth chip is provided on the controller.

Compared with the prior art, the present invention has the following beneficial effects:

The present invention skillfully sets the SIM card communication circuit, and establishes a block chain with the unique number of the container smart lock, and encrypts the unique number of the container smart lock through an asymmetric algorithm; through the double verification of the private key and the number of the container smart lock , to ensure the safety of unlocking. In addition, the present invention can also use bluetooth communication to unlock, so as to meet various unlocking methods. To sum up, the present invention has the advantages of safety and reliability, rich unlocking methods, etc., and has high practical value and popularization value in the technical field of container intelligent locks.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not It is regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can also be obtained based on these drawings without creative work.

Fig. 1 is a flowchart of the present invention.

Fig. 2 is a schematic structural diagram of the electronic lock of the present invention.

Fig. 3 is an internal structure diagram (1) of the electronic lock of the present invention.

Fig. 4 is a bottom structural view of the electronic lock of the present invention.

Fig. 5 is an internal structure diagram (2) of the electronic lock of the present invention.

Fig. 6 is a schematic structural view of the lock cylinder of the present invention.

Fig. 7 is a structural diagram (1) of the locking cord fixing member of the present invention.

Fig. 8 is a structure diagram (2) of the locking cord fixing part of the present invention.

Fig. 9 is a structure diagram (3) of the locking cord fixing member of the present invention.

Fig. 10 is a schematic diagram of the internal three-dimensional structure of the electronic lock of the present invention.

Fig. 11 is a schematic diagram of the bluetooth chip of the present invention.

Fig. 12 is a schematic diagram of the interface circuit of the present invention.

Fig. 13 is a schematic diagram of the driving circuit for unlocking the motor of the present invention.

Fig. 14 is a schematic diagram of the motor lock driving circuit of the present invention.

Fig. 15 is a schematic diagram of the motor interface circuit of the present invention.

Fig. 16 is a schematic diagram of the indicator light circuit of the present invention.

Fig. 17 is a schematic diagram of the sensor acquisition circuit of the present invention.

In the above drawings, the names of components corresponding to the reference signs are as follows:

101-lock body, 102-battery compartment cover, 103-screw, 104-lock head, 105-lock rope, 106-battery, 107-sealing ring, 108-capacitor, 109-green indicator light, 110-dust cover, 111-power connector slot, 112-red indicator light, 113-lock hole, 114-circuit board compartment cover fixing hole, 115-mechanical compartment cover fixing hole, 116-battery compartment, 117-lock body mounting hole, 118- Dust cover rotation device, 119-wear-resistant sleeve, 120-chip hole, 121-circuit board cover, 122-mechanical cover fixing column, 123-unlock sensor, 124-positioning hole, 125-motor, 126- Sensor trigger, 127-lock sensor, 128-lock cylinder, 129-lock head detection sensor, 130-interface board, 131-light guide column, 132-power line wiring groove, 133-bolt baffle, 134- Motor drive hole, 135-lock head detection thimble baffle plate, 136-bolt spring, 137-thimble, 138-bolt bolt, 139-lock head detection steel ball, 140-lock head locking steel ball, 141-lock chamber, 142- Chip removal slot, 143-motor gear, 201-lock rope fixing device, 202-lock rope fixing screw hole, 203-lock fixing device cover fixing hole, 204-lock fixing device cover plate, 205-screw limit groove , 206-lock head fixing hole, 207-lock head anti-drop steel ball, 208-lock rope fixing port, 209-lock rope fixing device installation hole, 1041-locking groove.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present invention will be further described below in conjunction with the accompanying drawings and examples. The implementation of the present invention includes but not limited to the following examples. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

Example

As shown in FIG. 1 to FIG. 17 , this embodiment provides a method for remote unlocking, which is used in a container smart lock. Then, the structure of the container smart lock in this embodiment is introduced first. It should be noted that the serial numbers such as "first" and "second" in this embodiment are only used to distinguish similar components, and should not be understood as specific limitations on the scope of protection. In addition, directional terms such as "bottom", "top", "surrounding edge", and "center" in this embodiment are described based on the drawings. Not only that, this embodiment is based on the improvement of the circuit and mechanical structure, and does not improve the software program, which is a combination of conventional program segments, which will not be repeated here.

The first part, the mechanical part of the lock module:

Wherein, the lock module includes a lock body 101 and a lock rope fixing device 201 fixed on the container door in one-to-one correspondence; Between the lock rope fixing device 201 and the lock rope 105 fixedly connected with the lock rope fixing device 201, and the battery 106, the circuit board and the lock head driving mechanism arranged in the lock body 101 and electrically connected to each other; A detachable connection is adopted between the lock head driving mechanism and the lock head 104 . Wherein, a battery compartment 116 is arranged in the lock body 101, a sealing ring 107 is arranged between the battery compartment 116 and the battery compartment cover 102, and a screw rod 103 is used to connect the battery compartment cover 102 and the battery compartment 116. In addition, a circuit board compartment cover 121 is also provided on the lock body 101 . A wear-resistant sleeve 119 coaxial with the lock bore 141 for inserting the lock head 104 is disposed inside the lock body 101 . In order to avoid sundries entering in the wear-resistant sleeve 119, the lock body 101 is provided with a lock hole 113 communicated with the wear-resistant sleeve 119, and the lock body 101 is fixed with a lock for blocking the lock hole 113 after being toggled. dust cover 110.

In addition, the lock rope fixing device 201 of this embodiment is provided with a lock rope fixing screw hole 202, a lock fixing device cover plate fixing hole 203, a lock fixing device cover plate 204, a screw limiting groove 205, and a lock fixing hole 206. , lock head anti-falling steel ball 207, lock rope fixing opening 208 and lock rope fixing device installation hole 209.

The lock head driving mechanism in this embodiment includes a lock cylinder 128, connected with the lock cylinder 128, a motor 125 for driving the lock cylinder 128, and arranged on the lock cylinder 128 for detecting that the lock cylinder 104 is inserted into the lock cylinder 128 The lock detection sensor 129 of the internal state. Wherein, the lock cylinder 128 includes a lock cylinder shell in an L shape, a lock bore 141 provided in the lock core shell for inserting the lock head 104, and a first pipe vertically communicated with the lock bore 141 in the lock core shell. And the second pipeline, the lock detection steel ball 139 arranged in the first pipeline, the thimble 137 that is arranged in the first pipeline and one end is in contact with the lock detection steel ball 139, is arranged on the outside of the lock cylinder shell, and is connected with the thimble 137 The other end is connected to the lock detection thimble baffle 135 for pressing the lock detection sensor 129, the lock lock steel ball 140 which is arranged at the front end of the second pipeline and contacts the lock bore 141, and one end is connected with the lock lock The tight steel ball 140 extrudes and contacts the dead bolt 138 arranged in the second pipeline, and is engaged with the other end of the dead bolt 138, and is fixedly connected with the bearing end of the motor 125 for driving the dead bolt 138 along the second pipeline. The motor gear 143 for pipeline movement is arranged at the rear end of the second pipeline, and is used for the deadbolt baffle 133 for blocking the second pipeline. One end is placed in the deadbolt 138, and the other end is pressed against the deadbolt baffle. The deadbolt spring 136 on 133 is sleeved on the bearing of the motor 125 and has a fan-shaped sensor trigger 126, and the unlocking sensor 123 is fixed on both sides of the motor 125 and is pressed against the sensor trigger 126. And lock sensor 127. In this embodiment, the lock head 104 is provided with a locking groove 1041 that is pressed into contact with the lock head locking steel ball 140; in addition, the diameter of the connection between the first pipe and the lock bore 141 is smaller than that of the first pipe. The diameter of the connection between the second pipe and the lock chamber 141 is smaller than the diameter of the second pipe.

The second part, the intelligent drive module part:

Wherein, the circuit board is provided with a controller electrically connected to the battery 106 and the motor 125 respectively; the controller includes a bluetooth chip U2 whose model is nRF52832, and the VDD pin is connected to the battery 106, and one end of the parallel connection is connected to the bluetooth chip U2. Capacitor C10, capacitor C11, and capacitor C16 connected to the VDD pin and the other end grounded, the motor unlocking drive circuit connected to the serial port P0.03 of the Bluetooth chip U2, and the motor unlocking drive circuit connected to the serial port P0.04 of the Bluetooth chip U2 The motor lock drive circuit is connected with the serial port P0.05 of the bluetooth chip U2, and the lock insertion detection circuit for collecting the signal of the lock detection sensor 129 is connected with the serial port P0.13 of the bluetooth chip U2. The lock acquisition circuit for collecting the signal of the lock sensor 127 is connected with the serial port P0.14 of the bluetooth chip U2, the unlock acquisition circuit for collecting the signal of the unlock sensor 123, and connected with the serial port of the bluetooth chip U2 SIM card communication circuit. Among them, the structure of the motor unlocking driving circuit is the same as that of the motor locking driving circuit, and the motor unlocking driving circuit includes a transistor Q6 whose base is connected to the serial port P0.03 of the Bluetooth chip U2 through a resistor R17, and whose emitter is grounded. The resistor R18 is connected to the collector of the triode Q6, the source is connected to the battery, and the drain is connected to the motor of the field effect transistor D6, and the resistor R21 is connected between the battery and the gate of the field effect transistor D6. In addition, the lock head insertion detection circuit, the lock acquisition circuit and the unlock acquisition circuit have the same structure, and the lock acquisition circuit includes a capacitor C44 with one end connected to the serial port P0.13 of the Bluetooth chip U2 and the other end grounded, and One end of the resistor R26 is connected to the serial port P0.13 of the Bluetooth chip U2; the lock sensor 127 is arranged in parallel with the capacitor C44.

The method for remote unlocking of this embodiment is described in detail below, including the following steps:

First, the encryption phase:

(11) Use the mobile communication terminal to register with identity information and obtain a unique account number;

(12) Utilize the mobile communication terminal to enter the unique numbering of the container smart lock, and use an asymmetric algorithm to encrypt the numbering of the container smart lock, and set up a block chain corresponding to the unique number of the container smart lock; after the encryption The number of the container smart lock is stamped with the corresponding time stamp and uploaded to the corresponding blockchain;

(13) feed back the private key obtained by encrypting the serial number of the container smart lock to the mobile communication terminal and the container smart lock respectively;

Second, the unlocking stage:

(21) The mobile communication terminal initiates an unlock request and provides a private key for unlocking;

(22) If the private key provided by the mobile communication terminal is consistent with the private key stored in the block chain, then enter the serial number request of the container smart lock, otherwise, exit the unlocking;

(23) The mobile communication terminal acquires the serial number of the container smart lock, and sends the serial number of the container smart lock on the mobile communication terminal to the container smart lock;

(24) If they are consistent, the controller sends an unlock signal to the drive mechanism to open the container smart lock, otherwise, the unlock fails.

(24) After unlocking, encrypt the account number of the mobile communication terminal and upload it to the block chain corresponding to the serial number of the container smart lock.

(25) Obtain the unique number of the container smart lock, and perform a secure access block chain request to obtain the private key corresponding to the unique number of the container smart lock.

The above-described embodiments are only preferred embodiments of the present invention, and are not limitations on the scope of protection of the present invention. However, all changes made by adopting the design principle of the present invention and performing non-creative work on this basis should belong to the protection scope of the present invention. within.

Claims (5)

1. A remote unlocking method is used for an intelligent container lock and is characterized in that the intelligent container lock comprises lock bodies and locking rope fixing devices which are fixed on the container doors of a container in a one-to-one correspondence manner; the lock body is internally provided with a storage battery, a controller and a driving mechanism which are electrically connected with each other; the controller is provided with an SIM card communication circuit and a memory;

the remote unlocking method comprises the following steps:

and an encryption stage:

registering and acquiring a unique account number by using a mobile communication terminal;

the unique serial number of the intelligent container lock is input by using a mobile communication terminal, the serial number of the intelligent container lock is encrypted by adopting an asymmetric algorithm, and a block chain corresponding to the unique serial number of the intelligent container lock is established; covering the encrypted serial number of the intelligent container lock with a corresponding timestamp, and uploading the serial number to a corresponding block chain;

respectively feeding back a private key obtained by encrypting the serial number of the intelligent container lock to the mobile communication terminal and the intelligent container lock;

an unlocking stage:

the mobile communication terminal initiates an unlocking request and provides an unlocking private key;

if the private key provided by the mobile communication terminal is consistent with the private key stored in the block chain, entering a numbering request of the intelligent container lock, otherwise, exiting unlocking;

the mobile communication terminal acquires the serial number of the intelligent container lock and sends the serial number of the intelligent container lock on the mobile communication terminal to the intelligent container lock;

if the container is consistent with the intelligent lock, the controller sends an unlocking signal to the driving mechanism to unlock the intelligent lock of the container, otherwise, the unlocking fails;

the lock module comprises lock bodies 101 and lock rope fixing devices 201 which are fixed on the door of the container in a one-to-one correspondence manner, lock heads 104 which are inserted into the lock bodies 101 and are detachably connected with the lock bodies 101, lock ropes 105 which are arranged between the lock heads 104 and the lock rope fixing devices 201 and are fixedly connected with the lock rope fixing devices 201, and batteries 106, circuit boards and lock head driving mechanisms which are arranged in the lock bodies 101 and are electrically connected with one another; the lock head driving mechanism is detachably connected with the lock head 104; wherein, a battery compartment 116 is arranged in the lock body 101, a sealing ring 107 is arranged between the battery compartment 116 and the battery compartment cover 102, and the battery compartment cover 102 is connected with the battery compartment 116 by a screw 103; in addition, a circuit board compartment cover 121 is also arranged on the lock body 101; an anti-abrasion sleeve 119 which is coaxial with the lock chamber 141 and used for inserting the lock head 104 is arranged in the lock body 101; in order to prevent sundries from entering the anti-abrasion sleeve 119, a lock hole 113 communicated with the anti-abrasion sleeve 119 is formed in the lock body 101, and a dust cover 110 used for shielding the lock hole 113 after being shifted is fixed on the lock body 101;

the locking rope fixing device 201 is provided with a locking rope fixing screw hole 202, a lock head fixing device cover plate fixing hole 203, a lock head fixing device cover plate 204, a screw limiting groove 205, a lock head fixing hole 206, a lock head anti-falling steel ball 207, a locking rope fixing port 208 and a locking rope fixing device mounting hole 209 in the Shanghai; the lock head driving mechanism comprises a lock cylinder 128, a motor 125 connected with the lock cylinder 128 and used for driving the lock cylinder 128, and a lock head detection sensor 129 arranged on the lock cylinder 128 and used for detecting the state that the lock head 104 is inserted into the lock cylinder 128; the lock cylinder 128 comprises an L-shaped lock cylinder shell, a lock chamber 141 arranged in the lock cylinder shell and used for inserting the lock head 104, a first pipeline and a second pipeline which are arranged in the lock cylinder shell and vertically communicated with the lock chamber 141, a lock head detection steel ball 139 arranged in the first pipeline, a thimble 137 arranged in the first pipeline and one end of which is in contact with the lock head detection steel ball 139, a lock head detection thimble baffle 135 arranged outside the lock cylinder shell and connected with the other end of the thimble 137 and used for jacking a lock head detection sensor 129, a lock head locking steel ball 140 arranged at the front end of the second pipeline and in contact with the lock chamber 141, a lock tongue 138 arranged in the second pipeline and with one end in extrusion contact with the lock head locking steel ball 140, a motor gear 143 which is in meshing connection with the other end of the lock tongue 138 and is fixedly connected with the bearing end of the motor 125 and used for driving the lock tongue 138 to move along the second pipeline, a lock tongue baffle plate arranged at the rear end of the second pipeline and used for plugging the second pipeline, a lock tongue baffle plate 133, a spring element 126, a spring element which is arranged in the lock head and is arranged in the lock head of the second pipeline and is matched with the lock head sensor 123, and a spring element 126 and a trigger sensor which are arranged on the lock head and are arranged on the two sides of the lock head and the lock head sensor element; in this embodiment, the lock head 104 is provided with a locking groove 1041 in pressing contact with the lock head locking steel ball 140; in addition, the diameter of the first conduit where it communicates with the lock bore 141 is smaller than the diameter of the first conduit, and the diameter of the second conduit where it communicates with the lock bore 141 is smaller than the diameter of the second conduit.

2. The remote unlocking method according to claim 1, further comprising encrypting an account number of the mobile communication terminal after unlocking and uploading the encrypted account number to a block chain corresponding to the number of the intelligent container lock.

3. The method of claim 1, further comprising obtaining a unique number of the smart container lock, and performing a security access block chain request to obtain a private key corresponding to the unique number of the smart container lock.

4. A remote unlocking method as claimed in any one of claims 1 to 3, wherein the mobile communication terminal is registered with identity information.

5. A remote unlocking method according to any one of claims 1 to 3, wherein a bluetooth chip is provided on the controller.

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