CN111877870A

CN111877870A - Lock cylinder, key and unlocking method for lock

Info

Publication number: CN111877870A
Application number: CN202010698907.5A
Authority: CN
Inventors: 张伦泳
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-11-03
Anticipated expiration: 2040-07-20
Also published as: CN111877870B

Abstract

The embodiment of the invention relates to a lock cylinder, a key and an unlocking method for a lock. When a key is inserted into the lock core, the SIM card in the SIM card placing part is electrically connected with a control module in the lock core, the control module is connected with a wireless communication network and initiates a registration request to the wireless communication network by using the IMEI number configured by the control module and the IMSI number of the SIM card so as to check the matching relation between the IMEI number and the IMSI number, when the IMEI number is matched with the IMSI number, the control module performs unlocking operation to open the lock, and when the IMEI number is not matched with the IMSI number, the control module does not perform unlocking operation.

Description

Lock cylinder, key and unlocking method for lock

Technical Field

The embodiment of the invention relates to the technical field of intelligent locks, in particular to a lock core, a key and an unlocking method for a lock.

Background

The existing intelligent lock is unlocked by receiving fingerprint or password input through a control panel. Under the condition that the intelligent lock is associated with the intelligent home, the user can also operate the intelligent home by inputting the instruction code into the intelligent lock. In some schemes, unlocking devices such as an access control card and a smart phone are connected with a lock in a non-contact wireless connection mode and complete data interaction, so that unlocking or smart home control and other operations are realized.

The existing intelligent lock usually uses a key storing replaceable verification information to match with a lock cylinder, so the intelligent lock needs to be connected with a network firstly and then is verified.

In addition, the existing intelligent lock can only perform passive alarm basically for special requirements, such as functions of alarm and the like. Specifically, for example, the existing smart lock alarms when the lock body structure is damaged or the lock body vibrates, and this alarm method can only be used when someone breaks the smart lock. Although there are active alarm modes for smart locks, the existing smart locks usually need to recognize specific input conditions, such as specific passwords, command codes, fingerprints, human faces, and the like. This is clearly not applicable to emergency situations where, for example, the user finds someone trailing or is stressed. At this time, it is obviously inconvenient for the user to alarm by inputting a password or the like, because it is obvious that the action unrelated to unlocking causes the alertness of the harmer, thereby increasing the danger of the user being harmed.

Disclosure of Invention

The invention aims to solve the technical problems that in order to overcome the defects in the prior art, the lock cylinder, the key and the unlocking method for the lock are provided, so that the technical problems that the unlocking is inconvenient and other modes for alarming are inconvenient to use in an emergency situation are solved.

According to an aspect of an embodiment of the present invention, there is provided a key including: a handle portion; an insertion portion connected with the handle portion and insertable into a key cylinder of a corresponding lock; and a SIM card placing section provided in the handle section or the insertion section. When the key is inserted into the lock cylinder, a SIM card in the SIM card placing part is electrically connected with a control module in the lock cylinder, the control module is connected with a wireless communication network and initiates a registration request to the wireless communication network by using an IMEI number configured by the control module and an IMSI number of the SIM card so as to check the matching relation between the IMEI number and the IMSI number, when the IMEI number is matched with the IMSI number, the control module executes unlocking operation to open the lock, and when the IMEI number is not matched with the IMSI number, the control module does not execute unlocking operation.

According to an aspect of an embodiment of the present invention, there is provided a lock cylinder for a lock, characterized in that the lock cylinder includes: a control module for connecting to a wireless communications network and controlling the lock body of the lock, the control module being configured with an IMEI number, the IMEI number matching an IMSI number of one or more SIM cards; and a connection module which electrically connects the SIM card provided in the key with the control module after the key is inserted into the key cylinder. When the key is inserted into the lock cylinder, the control module connects to a wireless communication network and initiates a registration request to the wireless communication network using the IMEI number and the IMSI number to check a matching relationship between the IMEI number and the IMSI number, performs an unlocking operation to open the lock when the IMEI number matches the IMSI number, and does not perform the unlocking operation when the IMEI number does not match the IMSI number.

According to an aspect of an embodiment of the present invention, an embodiment of the present invention provides a method of unlocking, including: inserting a key provided with a SIM card into a lock cylinder of a lock, wherein the lock cylinder comprises a control module and a connection module, the control module is used for connecting to a wireless communication network and controlling a lock body of the lock, the control module is configured with an IMEI number, the IMEI number is matched with IMSI numbers of one or more SIM cards, the connection module enables the SIM card arranged in the key to be electrically connected with the control module after the key is inserted into the lock cylinder, when the key is inserted into the lock cylinder, the control module is connected with the wireless communication network and initiates a registration request to the wireless communication network by using the IMEI number and the IMSI number so as to check the matching relation of the IMEI number and the IMSI number, when the IMEI number is matched with the IMSI number, the control module performs an unlocking operation to open the lock, and when the IMEI number is not matched with the IMSI number, the control module does not perform an unlocking operation.

The embodiment of the invention has the beneficial effects that: the unlocking device can be quickly and conveniently unlocked, and an alarm mode can be integrated in daily unlocking actions, so that alarm is realized under the condition that other people cannot be warned, and the alarm action is hidden and convenient to operate.

Drawings

FIG. 1 is a front view of a key according to an embodiment of the present invention;

FIG. 2 is a rear view of a key according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a key of the embodiment of the present invention taken along line A-A of FIG. 1;

FIG. 4 is a bottom view of a key according to an embodiment of the present invention;

FIG. 5 is a top view of a key according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a lock cylinder of an embodiment of the present invention;

FIG. 7 is a perspective view of a lock cylinder of an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the lock cylinder of the embodiment of the present invention taken along line D-D of FIG. 6;

FIG. 9 is a cross-sectional view of the lock cylinder of the embodiment of the present invention taken along line E-E of FIG. 6;

fig. 10 is a cross-sectional view of a lock cylinder of the embodiment of the present invention, taken along line F-F of fig. 6.

Reference numerals:

1. the key, 10, the inserting part, 11, the handle part, 12, the SIM card placing part, 101, the contact of the inserting part, 1011 and 1016, the SIM card connecting contact, 1017 and 1018, the short contact, 1019, the connecting line of the key, 1021 and 1023, the locating slot, 1024 and the key bit;

2. lock cylinder, 20, control module, 21, connection module, 22, non-rotatable part, 23, rotatable part, 2121 and 2128, connection contacts of lock cylinder, 211 and 218, connection lines of lock cylinder, 234, functional conductors, 2341, recesses of functional conductors, 2371 and 2378, conduction ring, 2281 and 2283, connection node, 22811-22812/22821-22822/22831-22832, node port, 228111 and 228121, positioning structure, 24, spring, 251 and 258, mechanical latch, 2511, first part of mechanical latch, 2512, second part of mechanical latch, S, contact surface of first part of mechanical latch and said second part, 235, positioning bar, 201, output bus, 202, feedback and input bus, D, lock body device.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

It is to be noted that, for the sake of understanding, it is assumed that the lock hole of the key cylinder described in the following embodiments is disposed in a vertical posture when the key is not inserted, and thus, the key is also disposed in the same vertical posture. Thus, references hereinafter to the directions of "upper" or "top", "lower" or "bottom" are respectively intended to refer to the state when vertically disposed. In use, the positional relationship between the components is subject to actual orientation.

Key with a key body

As shown in fig. 1 to 5, an embodiment of the present invention provides a key 1 including an insertion portion 10, a handle portion 11, and a SIM card placing portion 12. The insertion portion 10 is connected to the handle portion 11. The insert 10 can be inserted into the lock cylinder of a corresponding lock, for example, in the embodiment of the invention, into the lock cylinder 2. When the key 1 is inserted into the key cylinder 2, a SIM card (subscriber identity Module) in the SIM card placing section 12 is electrically connected to the control Module 20 in the key cylinder 2. The control module 20 connects to the wireless communication network and initiates a registration request to the wireless communication network using its configured IMEI number and the IMSI number of the SIM card to check the matching relationship of the IMEI number and the IMSI number. When the IMEI number matches the IMSI number, the control module 20 performs an unlocking operation to open the lock. When the IMEI number does not match the IMSI number, the control module 20 does not perform the unlocking operation. The key with the structure can be used for quickly and conveniently unlocking.

On the mobile communication network, the IMEI number of the mobile communication network terminal on the lock core is bound with the IMSI number of the SIM card applicable to the lock core, namely, only a limited SIM card can be connected with the mobile communication network through the lock core. And after the lock cylinder is connected with the mobile communication network, the lock body is automatically controlled to be unlocked. Therefore, the lock cylinder can be unlocked without rotating the lock cylinder.

In one embodiment, the control module 20 performs an auxiliary function when the IMEI number matches the IMSI number and the key 1 is rotated. In one embodiment, the auxiliary function comprises one or a combination of the following functions: an alarm function, an information transmission function, and a function of controlling the indoor device. For example, the auxiliary functions may include: alarm, safety alarm, lamp switch, curtain switch, etc.

In one embodiment, the insertion portion 10 is provided with a plurality of contacts, any two of which constitute a first shorting contact and a second shorting contact that are shorted to each other. In the example shown in fig. 3, the

contacts

1017 and 1018 constitute a first short contact 1017 and a second short contact 1018, respectively. The first short contact point 1017 and the second short contact point 1018 can be electrically connected with corresponding contacts of the lock cylinder 2, respectively. Therefore, when the key is inserted into the matched lock cylinder, the control module of the lock cylinder closes the flight mode according to the short-circuit and is connected with the wireless communication network. Since keys corresponding to different lock cylinders are generally different from one another, the short contact point is not limited to the first short contact point 1017 and the second short contact point 1018 being shorted with each other. In other words, the first short contact point and the second short contact point may be any two contacts of the

contacts

1011 and 1018, for example. Therefore, the invention can further avoid the actions of maliciously copying the key and attempting to unlock by using other keys.

In one embodiment, the key may not include a shorting contact. In this case, the lock cylinder will periodically attempt to make a network connection.

In one embodiment, one or more pairs of contacts that are shorted to each other are provided in the plurality of contacts of the interposer 10. When all the contacts short-circuited with each other are electrically connected to the corresponding contacts of the lock cylinder 2, the control module 20 will close the flight mode and connect to the wireless communication network according to the short-circuit line. The invention can further avoid the behavior of maliciously copying the key and the behavior of trying to unlock by using other keys by arranging a plurality of pairs of contacts which are inserted in short circuit with each other.

In one embodiment, a plurality of contacts 1011-1018 are arranged on the insertion portion 10 in the direction of insertion of the key 1 into the lock cylinder 2. In fig. 3 and 4, a plurality of

contacts

1011 and 1018 are arranged at the lower portion of the key.

In one embodiment, the insertion portion 10 is provided with a plurality of randomly arranged SIM

card connecting contacts

1011 and 1016, each of which is connected with a corresponding pin of the SIM card. Fig. 3 only shows the case where the SIM card connection contacts 1011-1016 are sequentially connected to the pins of the SIM. Because the general corresponding relations between the keys corresponding to different lock cylinders are different from each other, the SIM card connecting contact points of different keys, which are communicated with the SIM card pins, are randomly arranged, so that the behavior of maliciously copying the keys and the behavior of trying to unlock by using other keys can be avoided.

In one embodiment, the number of the SIM card contacts is at least 4, so as to accommodate various existing SIM cards. In the embodiment shown in fig. 3, there are 6 SIM card connection contacts.

In one embodiment, the insertion portion 10 has a plurality of contacts arranged in a direction in which the key 1 is inserted into the key cylinder 2, and the plurality of contacts are provided with interfering contacts that are not electrically connected to any of the contacts or the SIM card. The provision of interfering contacts avoids the act of maliciously copying keys and attempting to unlock with other keys.

In one embodiment, the middle of the contacts 1101-1018 is a conductive portion, and the peripheral portions of the contacts 1101-1018 are made of an insulating material to prevent shorting to each other.

In one embodiment, as shown in fig. 3, the SIM card placing section 12 is a card slot provided on the handle section 11. The SIM card is inserted into the key, and the plugging and unplugging of the SIM card can be realized by the help of a card support commonly used by the existing smart phone.

In an embodiment, the insert 10 is provided with an insert positioning structure to position the insert 10 when the insert 10 is inserted into the lock cylinder 2. In one embodiment, the positioning structure of the insertion portion is configured as at least one

positioning groove

1021 and 1023. As shown in fig. 1 to 2, the positioning grooves may be two

positioning grooves

1021 and 1022 on the front surface and one positioning groove 1023 on the back surface.

In one embodiment, the insert 10 is provided with a key tooth 1024 to cooperate with a mechanical latch of the lock cylinder 2 to effect a conventional unlocking mechanism.

Lock core

As shown in fig. 6 to 10, an embodiment of the present invention provides a key cylinder 2 for a lock. The lock cylinder 2 comprises a control module 20 and a connection module 21. The control module 20 is used for connecting to a wireless communication network and controlling the body of the lock. The control module 20 is configured with an IMEI number, wherein the IMEI number matches the IMSI number of one or more SIM cards. The connection module 2 electrically connects the SIM provided in the key to the control module 20 after the key is inserted into the key cylinder. When a key is inserted into the lock cylinder 2, for example, when the key 1 is inserted into the lock cylinder 2, the control module 20 connects to a wireless communication network and initiates a registration request to the wireless communication network using the IMEI number and the IMSI number to check the matching relationship of the IMEI number and the IMSI number. When the IMEI number matches the IMSI number, the control module 20 performs an unlocking operation to open the lock. When the IMEI number does not match the IMSI number, the control module 20 does not perform the unlocking operation. The lock core with the structure can be quickly and conveniently unlocked.

In one embodiment, the connection module 21 is electrically connected to the control module 20 through the

connection lines

211 and 218. Among the connection lines of the connection module 21, the

connection lines

217 and 218 are a first short line and a second short line, respectively, which form a short unit. The first short connection line 217 and the second short connection line 218 can be electrically connected with a first short contact point 1017 and a second short contact point 1018, respectively, which are short-circuited to each other on the key 1. When no key is inserted into the key cylinder 2 or a key not matching the key cylinder 2 is inserted into the key cylinder 2, the first and

second shorting lines

217 and 218 are in a disconnected state, and the control module 20 is set to an airplane mode to disconnect from the wireless communication network. When a key (e.g., key 1) matching the lock cylinder 2 is inserted into the lock cylinder 2, the first short connection line 217 and the second short connection line 218 are electrically connected through the first short contact point and the second short contact point, and the control module 20 turns off the flight mode and connects to the wireless communication network.

In an embodiment, the connection module 21 comprises one or more shorting units. The plurality of short-circuit units may be set such that when one or more of the short-circuits are made, the control module 20 switches off the flight mode, thereby adapting the plurality of keys and improving safety.

In other embodiments, the control module 20 is configured to determine whether a short-circuit exists in the connection line with the connection module 21. Therefore, in other embodiments, the connection module 21 may not be provided with a specific short connection line. In this case, the control module 20 may preset (e.g., by software of an external device) one or more pairs of arbitrarily arranged connection lines as short connection lines. Thereby, the control module 20 can set a key corresponding to the key cylinder 2.

In one embodiment, the lock cylinder may not include the function of turning off the flight mode via a short circuit. In this case, the lock cylinder will periodically attempt to make a network connection.

In an embodiment, the lock cylinder 2 comprises a non-rotatable part 22 and a rotatable part 23. The non-rotatable portion 22 surrounds the outside of the rotatable portion 23 with an axis in the direction in which the key 1 is inserted (the right-left direction in fig. 6, i.e., the axial direction of the key cylinder). When the key 1 is inserted into the key cylinder, the key 1 is located in the key hole in the rotatable portion 23.

In one embodiment, the connection module 21 further includes

connection contacts

2121 and 2128 and conductive rings 2371 and 2378. The

connection contacts

2121 and 2128 are provided on the rotatable portion 23 and rotate together with the rotatable portion 23. A conductive ring 2371 and 2378 are secured to the non-rotatable portion 22. The inner sides of the conductive rings 2371 and 2378 are slidably connected to the

connection contacts

2121 and 2128, respectively, and the outer sides of the conductive rings 2371 and 2378 are connected to the

connection lines

211 and 218. Non-rotatable portion 22 and rotatable portion 23 are insulated from each other except for conductive rings 2371 and 2378. Thereby, a connection between the key 1 and the control module 20 when the rotatable part 23 is rotated can be ensured.

In one embodiment, the connecting contacts 2121-2128 are bi-directional resilient bumps arranged along the direction of insertion of the key 1. As shown in fig. 6 and 7, the connecting

contacts

2121 and 2128 are disposed right below the lock cylinder 2, and the connecting

contacts

2121 and 2128 are in one-to-one correspondence with the connecting

contacts

1011 and 1018 of the key 1 and in one-to-one correspondence with the conducting rings 2371 and 2378.

In one embodiment, the conductive rings 2371 and 2378 are metal conductive rings.

In an embodiment, the lock cylinder 2 comprises a rotatable part and a function conductor 234. The functional conductor 234 extends from the rotatable part 23 and is offset from the centre of rotation of the rotatable part 23. The connection module 21 is provided with at least one connection node connected to the control module 20. With the rotation of the rotatable part 23, the function conductor 234 can be connected with the control module 20 via the connection node, thereby performing an auxiliary function by the control module 20. In an embodiment, the connection module 21 is provided with a plurality of connection nodes arranged along the same circumference, such that upon rotation of the rotatable part 23, the functional conductor 234 can be connected with any of the connection nodes. In the example shown in fig. 6, the connection module 21 is provided with 6 connection nodes.

In one embodiment, the auxiliary function comprises one or a combination of the following functions: an alarm function, an information transmission function, and a function of controlling the indoor device. For example, the auxiliary functions may include: alarm, safety alarm, lamp switch, curtain switch, etc.

In one embodiment, the connection nodes each include oppositely disposed pairs of node ports. Functional conductor 234 can be rotated between each pair of node ports to short the pair of node ports. When functional conductor 234 is not rotated between the paired node ports, the paired node ports are in an open state. In the examples shown in fig. 8 and 9, the paired node ports include node ports 22811-22812, node ports 22821-22822, and node ports 22831-22832.

In an embodiment, at least one node port of the pair of node ports is provided with a positioning structure. The function conductor 234 can be positioned onto the positioning structure of a pair of node ports as the rotatable portion 23 is rotated with the key. In the examples shown in fig. 8 and 9, taking the connection node 2281 as an example, the node ports 22811-22812 are respectively provided with

positioning structures

228111 and 228121.

In one embodiment, the positioning structure is positioned with the functional conductor 234 by a form fit. In an embodiment, the positioning structure is a protrusion/recess and is positioned with a form fit with a corresponding recess/protrusion of the functional conductor 234. In other words, the protrusions of the node ports are positioned with a form fit with the corresponding recesses of functional conductor 234, or/and the recesses of the node ports are positioned with a form fit with the corresponding protrusions of functional conductor 234.

In one embodiment, the triggering of the auxiliary function requires that the functional conductor 234 remain connected to the connection node for at least 500 ms. The control module 20 can thus decide the next action depending on the position reached by the rotation of the cylinder 2.

In one embodiment, the lock cylinder 2 is provided with one or more

mechanical latches

251 and 258. Each

mechanical latch

251 and 258 includes a first portion and a second portion. Taking the mechanical latch 251 as an example, it includes a first portion 2511 and a second portion 2512. The length of the first portion is randomly set. One end of the first part is connected to the non-rotatable part 22 and extends partly into the rotatable part by means of a spring 24. The end of the first part opposite to the end connected to the non-rotatable part 22 is in contact with the second part. The second part extends completely into the rotatable part 23. The end of the second part opposite to the end in contact with the first part abuts against the rotatable part when no key is inserted into the lock cylinder 2. When a key matching the lock cylinder 2 is inserted into the lock cylinder 2, the contact surface S of the first portion with the second portion is located on the outer circumferential surface of the rotatable portion 23. In one embodiment, the contact surfaces S of both the first and second portions are coated with an insulating material.

In an embodiment, the control module 20 includes an internet of things terminal built-in chip and an intelligent lock control chip.

In an embodiment, a positioning bar 235 is provided in the lock cylinder 2. In the example shown in fig. 10, 3 positioning bars 235 are provided in the rotatable portion 23. To correspond to the respective locating slot of the key.

In one embodiment, the control module 20 is coupled to the lock body D and/or other external devices via an output bus 201 and a feedback and input bus 202. In one embodiment, the control module 20 is wirelessly connected to an external device.

Unlocking method

The embodiment of the invention provides an unlocking method. Specifically, the method unlocks the lock by inserting a key 1 provided with a SIM card into a key cylinder 2 of the lock. Therein, the lock cylinder 2 comprises a control module 20 and a connection module 21. The control module 20 is used for connecting to a wireless communication network and controlling the body of the lock. The control module 20 is configured with an IMEI number that matches the IMSI number of one or more SIM cards. The connection module 21 electrically connects the SIM card provided in the key 1 with the control module 20 after the key 1 is inserted into the key cylinder 2. When the key 1 is inserted into the lock cylinder 2, a wireless communication network is connected through the control module 20 and a registration request is initiated to the wireless communication network using the IMEI number and the IMSI number to check the matching relationship of the IMEI number and the IMSI number. When the IMEI number matches the IMSI number, the control module 20 performs an unlocking operation to open the lock. When the IMEI number does not match the IMSI number, the control module 20 does not perform the unlocking operation.

In an embodiment, the lock cylinder 2 comprises a rotatable part 23 and a function conductor 234 extending from the rotatable part 23 and being offset from the center of rotation of the rotatable part. The connection module 21 is provided with at least one connection node connected to the control module 20. The method further comprises the following steps: as the rotatable part 23 rotates, the function conductor 234 is connected with the control module 20 via the connection node, so that the auxiliary function is performed by the control module 20.

In one embodiment, the control module 20 waits at least 500ms after connecting to the wireless communication network to perform an action to rotate the function conductor 234 to one of the connection nodes to determine whether to perform an unlocking and/or auxiliary function.

In one embodiment, the auxiliary function comprises one or a combination of the following functions: the alarm function is used for sending an emergency help-seeking short message to a preset terminal; an information sending function of sending information to a preset terminal; and controlling the function of the indoor equipment and sending a control signal to the indoor equipment. For example, the auxiliary functions may include: alarm, safety alarm, lamp switch, curtain switch, etc.

In one embodiment, the control module 20 waits at least 500ms after the rotatable portion 23 stops rotating after connecting to the wireless communication network before performing the next action.

Specific examples

Embodiments of the present invention will be described below by way of specific examples. This example comprises a key 1 and a cylinder 2 for a lock, the key 1 corresponding to the cylinder 2.

As shown in fig. 1 to 5, the key 1 includes an insertion portion 10, a handle portion 11, and a SIM card placing portion 12. The SIM card placing section 12 is a card slot to which a SIM card is fitted, and is provided in the handle section 11. On the lower surface of the insertion portion 10, 8

contacts

1011 and 1018 are sequentially provided along the direction in which the key 1 is inserted. Contact 1011-: contacts 1011-1016 connected in series with the pins of the SIM card, and a first short contact 1017 and a second short contact 1018 shorted to each other. The SIM card is connected to the contacts 1011-1016 by means of a key connection line 1019 provided in the key. The middle of the contacts 1101-1018 is a conductive portion and the peripheral portion is made of an insulating material. The insertion portion 10 is provided with two

positioning grooves

1021 and 1022 on the front side and one positioning groove 1023 on the rear side. The insertion portion 10 is provided with a key bit. As shown in fig. 6 to 10, the mechanical part of the lock cylinder 2 includes a non-rotatable part 22 and a rotatable part 23. The circuit part of the lock cylinder 2 comprises a control module 20 and a connection module 21. In the example, the control module 20 is arranged in the non-rotatable part 22, and a large part of the connection module 21 is also arranged in the non-rotatable part 22. The connection module 21 includes connection contacts 2121-2128, a conductive ring 2371-2378 and connection lines 211-218.

Connection contacts

2121 and 2128 and conductive rings 2371 and 2378 are provided on the rotatable portion 23. The connecting

contacts

2121 and 2128 rotate together with the rotatable part 23. The connection contacts 2121-2128 are provided as bidirectional elastic projections arranged in order below the rotatable portion 23 in the direction in which the key 1 is inserted when the key 1 is not inserted into the key cylinder 2. The inner sides of the conductive rings 2371 and 2378 are respectively corresponding to and slidably connected to the

connection contacts

2121 and 2128, and the outer sides of the conductive rings 2371 and 2378 are connected to the

connection lines

211 and 218. Non-rotatable portion 22 and rotatable portion 23 are insulated from each other except for conductive rings 2371 and 2378.

The lock cylinder 2 extends from the rotatable part 23 and is offset from the functional conductor 234 of the center of rotation of the rotatable part 23. As shown in fig. 6, the rotatable portion 23 of the functional conductor 234 extends from a surface away from the direction of key insertion. The connection module 21 is provided with

connection nodes

2281 and 2283 arranged along the same circumference connected to the control module 20. The node comprises a pair of node ports 22811-22812, 22821-22822 and 22831-22832 which are oppositely arranged. As shown in fig. 8 and 9, taking the connection node 2281 as an example, the node ports 22811-22812 are respectively provided with

positioning structures

228111 and 228121. The positioning structure is a protrusion and the functional conductor 234 is provided with a recess that is form-fit to the protrusion.

The lock cylinder 2 is provided with one or more

mechanical latches

251 and 258. Each

mechanical latch

251 and 258 includes a first portion and a second portion. Taking the mechanical latch 251 as an example, it includes a first portion 2511 and a second portion 2512. The length of the first portion is randomly set. The total length of each

mechanical lock tongue

251 and 258 is the same. One end of the first part is connected to the non-rotatable part 22 and extends partly into the rotatable part by means of a spring 24. The end of the first part opposite to the end connected to the non-rotatable part 22 is in contact with the second part. The second part extends completely into the rotatable part 23. The end of the second part opposite to the end in contact with the first part abuts against the rotatable part when no key is inserted into the lock cylinder 2. When a key matching the lock cylinder 2 is inserted into the lock cylinder 2, the contact surface S of the first portion with the second portion is located on the outer circumferential surface of the rotatable portion 23. In one embodiment, the contact surfaces S of both the first and second portions are coated with an insulating material.

The control module 20 includes an internet of things terminal built-in chip and an intelligent lock control chip. The control module 20 is connected to the lock body D and other external devices through an output bus 201 and a feedback and input bus 202.

A positioning bar 235 is arranged in the lock cylinder 2. As shown in fig. 10, 3 positioning bars 235 are provided in the rotatable portion 23, corresponding to 2 positioning grooves on the front surface and 1 positioning groove on the rear surface of the key 1, respectively.

The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A key, characterized in that it comprises:

a handle portion;

an insertion portion connected with the handle portion and insertable into a key cylinder of a corresponding lock; and

a SIM card placing section provided in the handle section or the insertion section,

wherein, when the key is inserted into the lock core, the SIM card in the SIM card placing part is electrically connected with the control module in the lock core, the control module is connected with a wireless communication network and initiates a registration request to the wireless communication network by using the IMEI number configured by the control module and the IMSI number of the SIM card so as to check the matching relationship between the IMEI number and the IMSI number,

when the IMEI number matches the IMSI number, the control module performs an unlocking operation to unlock the lock, and

and when the IMEI number is not matched with the IMSI number, the control module does not execute unlocking operation.

2. The key according to claim 1,

the control module performs an assistance function when the IMEI number matches the IMSI number and the key is rotated.

3. The key according to claim 1, wherein the insertion portion is provided with a plurality of contacts, any two of which constitute first and second short contact points that are short-circuited to each other,

the first short contact point and the second short contact point can be electrically connected with corresponding contacts of the lock cylinder respectively.

4. The key according to claim 1,

the inserting part is provided with a plurality of SIM card connecting contact points which are arranged randomly, and each SIM card connecting contact point is connected with a corresponding pin of the SIM card.

5. A lock cylinder for a lock, the lock cylinder comprising:

a control module for connecting to a wireless communications network and controlling the lock body of the lock, the control module being configured with an IMEI number, the IMEI number matching an IMSI number of one or more SIM cards; and

a connection module electrically connecting a SIM card provided in the key with the control module after the key is inserted into the key cylinder,

wherein, when the key is inserted into the key cylinder, the control module connects to a wireless communication network and initiates a registration request to the wireless communication network using the IMEI number and the IMSI number to check a matching relationship of the IMEI number and the IMSI number,

6. The lock cylinder according to claim 5,

the lock cylinder includes a rotatable portion and a functional conductor extending from the rotatable portion and offset from a center of rotation of the rotatable portion;

the connection module is provided with at least one connection node connected to the control module,

as the rotatable part rotates, the function conductor can be connected with the control module via the connection node, thereby performing an auxiliary function by the control module.

7. The lock cylinder according to claim 6,

the connection module is provided with a plurality of the connection nodes arranged along the same circumference so that the functional conductor can be connected with any of the connection nodes when the rotatable portion rotates.

8. The lock cylinder according to claim 6,

the auxiliary function comprises one or a combination of several of the following functions:

an alarm function, an information transmission function, and a function of controlling the indoor device.

9. The lock cylinder according to claim 6,

the control module comprises an internet of things terminal built-in chip and an intelligent lock control chip.

10. A method of unlocking a lock, the method comprising:

inserting a key provided with a SIM card into a lock cylinder of a lock, wherein the lock cylinder comprises a control module and a connection module, the control module is used for connecting to a wireless communication network and controlling a lock body of the lock, the control module is configured with an IMEI number, the IMEI number is matched with the IMSI number of one or more SIM cards, and the connection module enables the SIM card arranged in the key to be electrically connected with the control module after the key is inserted into the lock cylinder,

connecting a wireless communication network through the control module and initiating a registration request to the wireless communication network using the IMEI number and the IMSI number to check a matching relationship of the IMEI number and the IMSI number when the key is inserted into the lock cylinder,

when the IMEI number matches the IMSI number, the control module performs an unlocking operation to unlock the lock, an

11. The method of claim 10,

the method further comprises the following steps: connecting the function conductor with the control module via the connection node as the rotatable part rotates, thereby performing an auxiliary function by the control module.

12. The method of claim 11,

the auxiliary functions executed by the control module comprise one or a combination of the following functions:

an alarm function, which sends an emergency help-seeking short message to a preset terminal,

an information transmitting function of transmitting information to a preset terminal, an

And controlling the function of the indoor equipment and sending a control signal to the indoor equipment.