CN111667614A - Door opening method and system of Bluetooth induction lock - Google Patents
Door opening method and system of Bluetooth induction lock Download PDFInfo
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- CN111667614A CN111667614A CN202010412803.3A CN202010412803A CN111667614A CN 111667614 A CN111667614 A CN 111667614A CN 202010412803 A CN202010412803 A CN 202010412803A CN 111667614 A CN111667614 A CN 111667614A
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- 230000006698 induction Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000004044 response Effects 0.000 claims description 22
- 238000010295 mobile communication Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Quality & Reliability (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention provides a door opening method and a system of a Bluetooth induction lock, belonging to the technical field of intelligent door locks; the door opening method of the Bluetooth induction lock comprises the following steps: s1: receiving an unlocking signal of a Bluetooth key, performing security authentication on the Bluetooth key, and executing the next step if the authentication is passed; s2: detecting a user distance outside a door; s3: judging whether a user outside a door is at a preset door opening distance or not, and if so, executing the next step; s4: unlocking; according to the door opening method of the Bluetooth induction lock, after the unlocking signal of the Bluetooth key is received, if the user is not in the door opening distance range, the door lock cannot be opened, and the safety performance of the Bluetooth induction lock is improved.
Description
Technical Field
The invention relates to the technical field of intelligent door locks, in particular to a door opening method and a system of a Bluetooth induction lock.
Background
Along with the improvement of living standard of people, the higher requirement on the intelligence of the lock is mainly reflected in that the lock is more humanized and intelligent in the functions, operation and use processes.
The bluetooth intelligence lock in the existing market opens the door flow and does: when the Bluetooth intelligent door lock only needs to identify that the mobile phone or the Bluetooth key is out of the door and belongs to a legal user, the door can be opened. When the user is far away from the home or even the user does not see the home, the Bluetooth intelligent door lock can be interacted with the mobile phone or the Bluetooth key of the user, so that the door lock is opened in a sensing mode, and the safety is poor.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the safety of the bluetooth intelligent door lock in the prior art is poor when the door is opened by induction, so that the door opening method and the system of the bluetooth induction lock with better safety performance are provided.
In order to solve the technical problem, the door opening method of the bluetooth induction lock provided by the invention comprises the following steps:
s1: receiving an unlocking signal of a Bluetooth key, performing security authentication on the Bluetooth key, and executing the next step if the authentication is passed;
s2: detecting a user distance outside a door;
s3: judging whether a user outside a door is at a preset door opening distance or not, and if so, executing the next step;
s4: and (6) unlocking.
Preferably, in the step S2, the distance between the user and the door is detected by a radar ranging module.
Preferably, the method is characterized by further comprising the following steps:
s12: and after the Bluetooth key is subjected to security authentication, judging whether the Bluetooth key is out of the door, and if so, executing the next step.
Preferably, in the step S12, the bluetooth directional antenna is used to receive the unlocking signal of the bluetooth key, so as to determine the strength of the unlocking signal transmitted by the bluetooth key, and determine whether the bluetooth key is located outside the door according to the strength.
Preferably, the bluetooth directional antenna points to the outside of the door, and whether the bluetooth key is outside the door is determined by using the fact that the received unlocking signal of the bluetooth key is greater than a preset threshold value.
Preferably, the preset threshold is determined by using the strongest signal in the gate as a reference signal and adding a modified value to the reference signal.
Preferably, the revision value is 5-10 db.
As a preferred scheme, the bluetooth key is a mobile communication device inserted with an SIM card, and a bluetooth transmitting module is integrated on the SIM card.
A door opening system for a bluetooth induction lock, comprising: bluetooth response lock and bluetooth key, bluetooth response lock includes:
the Bluetooth sensing module is used for receiving an unlocking signal of the Bluetooth key and sending the unlocking signal to the control module;
the radar ranging module is used for detecting the user distance outside the door and sending a detection signal to the control module;
and the control module is used for respectively receiving the signals of the Bluetooth induction module and the radar ranging module and judging: whether the Bluetooth key passes the safety certification and whether the user moves to the outside of the door for a preset distance or not, and is used for sending a signal to unlock the lock.
As a preferred scheme, the bluetooth key is a mobile communication device inserted with an SIM card, and a bluetooth transmitting module is integrated on the SIM card.
As a preferred scheme, a security chip is further integrated on the SIM card, and the security chip is used for protecting information of the bluetooth key.
Preferably, the bluetooth sensing module detects the received strength of the unlocking signal of the bluetooth key by using a bluetooth directional antenna, and the bluetooth directional antenna points to the outside of the door and is in signal connection with the control module. The technical scheme of the invention has the following advantages:
1. the door opening method of the Bluetooth induction lock provided by the invention also comprises the step of detecting the distance between the outside user and the door after receiving the signal of the Bluetooth key, and the door lock can be opened only when the user is at the preset door opening distance; when the user is not in the door opening distance range, the door lock cannot be opened even if the signal of the Bluetooth transmitting module is received; the setting of the distance of opening the door has increased the security performance of bluetooth response lock.
2. According to the door opening method of the Bluetooth induction lock, the radar ranging module is adopted to detect the distance of a user outside the door, so that stable, accurate, high-sensitivity and high-speed distance measurement can be realized, and accurate distance induction door opening is realized.
3. The door opening method of the Bluetooth induction lock further comprises the step of judging whether the Bluetooth transmitting module is outside or inside the door, and only when the Bluetooth transmitting module meets the condition of being outside the door, the next step of user distance measurement operation can be executed; the condition that the user is in the door, the lock is opened is avoided appearing.
4. According to the door opening method of the Bluetooth induction lock, the Bluetooth directional antenna has larger forward gain, can inhibit backward signals and can increase the anti-interference capability; when the Bluetooth directional antenna points to the outside of the door, the difference of front and back signals is obvious, the signals in the door are weak, the strongest signal in the door is used as a reference signal to be compared with the signals outside the door, and whether the Bluetooth transmitting module is outside the door or not can be conveniently judged by utilizing the difference between the inside and the outside of the door, so that the judgment is more accurate.
5. According to the door opening system of the Bluetooth induction lock, the Bluetooth key is mobile communication equipment inserted with the SIM card, the induction mode of the Bluetooth SIM card is adopted, a special Bluetooth unlocking APP is not required to be opened, and the door opening system is more convenient to use.
6. According to the door opening system of the Bluetooth induction lock, the safety chip is arranged, so that the Bluetooth interaction of the Bluetooth key and the Bluetooth induction lock is encrypted in the whole process, and the door opening system is safer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a door opening system of a bluetooth induction lock provided in the present invention.
Fig. 2 is a flowchart of a door opening method of the bluetooth induction lock provided in the present invention.
Fig. 3 is a flowchart of bluetooth key registration provided in the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, the present embodiment provides a door opening system of a bluetooth induction lock, including: set up bluetooth response module, radar ranging module and the control module in bluetooth response lock, still include: a Bluetooth key.
The radar ranging module is used for detecting the distance between users outside the door and sending a detection signal to the control module.
The Bluetooth induction module is used for receiving an unlocking signal of the Bluetooth transmitting module and sending the signal to the control module.
The Bluetooth key is mobile communication equipment inserted with an SIM card, and a Bluetooth transmitting module is integrated on the SIM card; the mobile communication equipment is a mobile phone, and the Bluetooth transmitting module can automatically send signals to the Bluetooth sensing module through a power supply of the mobile phone; and a security chip is further integrated on the SIM card and used for protecting the information of the Bluetooth key. In addition, as an alternative embodiment, the mobile phone can also adopt other mobile communication equipment suitable for inserting the SIM card.
The Bluetooth induction module detects the intensity of the received unlocking signal of the Bluetooth key by adopting a Bluetooth directional antenna, and the Bluetooth directional antenna points outdoors and is in signal connection with the control module.
The control module receives the signals of the Bluetooth induction module and the radar ranging module respectively and judges: whether the Bluetooth key passes the safety certification, whether the user is outside the door or not, and whether the user moves to a preset distance outside the door or not, and sends a signal to unlock the door.
Example 2
This example provides an unlocking method of a bluetooth induction lock, as shown in fig. 2, including the following steps:
step S1: receiving an unlocking signal of a Bluetooth key, performing security authentication on the Bluetooth key, and executing the next step if the authentication is passed; the Bluetooth key is mobile communication equipment inserted with an SIM (subscriber identity module), a Bluetooth transmitting module is integrated on the mobile communication equipment, and the Bluetooth transmitting module can automatically send signals to a Bluetooth induction module through a power supply of the mobile communication equipment; when the mobile communication equipment approaches to the Bluetooth induction lock, a Bluetooth induction module on the Bluetooth induction lock automatically scans and receives signals of the Bluetooth transmitting module and performs Bluetooth connection with the mobile communication; for the safety of opening a door by the Bluetooth induction lock, malicious door opening is prevented, after the Bluetooth induction lock is in Bluetooth connection with the mobile communication, the Bluetooth induction lock performs safety authentication on the mobile communication equipment, the algorithm of the safety authentication adopts an AES (advanced encryption standard) algorithm, and the secret key of each Bluetooth key safety algorithm has uniqueness.
Step S12: and after the Bluetooth key is subjected to security authentication, judging whether the Bluetooth key is out of the door, and if so, executing the next step. Specifically, the bluetooth directional antenna is integrated on the bluetooth induction lock, and the bluetooth directional antenna points to the outside of the door. And when the signal intensity of the Bluetooth transmitting module received by the Bluetooth directional antenna is greater than a preset threshold value, judging that the Bluetooth key is positioned outdoors. And the preset threshold value is determined by taking the strongest signal in the gate as a reference signal and adding a revision value of 5-10 db on the basis of the reference signal.
Step S2: the user distance outside the door is detected. Specifically, the bluetooth response is locked to be integrated with radar ranging module, radar ranging module adopts TOF laser radar, detects the user distance outdoors through radar ranging module.
Step S3: and judging whether the user outside the door is at a preset door opening distance or not, and if so, executing the next step. The radar ranging module sends a detection signal to the control module, and the control module judges whether a user is in a preset door opening distance.
Step S4: and (6) unlocking.
In this embodiment, before unlocking, the bluetooth key needs to be registered first.
As shown in fig. 3, the step of registering the bluetooth key is as follows:
step 1: setting a Bluetooth PIN code; when the bluetooth response is opened the door, the prerequisite is that to carry out the bluetooth authentication, and every bluetooth key all has a unique PIN code, and the PIN code is the key of bluetooth authentication algorithm, and when bluetooth response lock connected user's bluetooth key, the bluetooth key carries out safety certification according to bluetooth safety certification flow through the PIN code, and safety certification passes through the back, can carry out the bluetooth response and open the door.
The user registers bluetooth key operation suggestion according to the APP on the APP customer end, inputs bluetooth key PIN code, and after the bluetooth response lock received APP customer end and registers bluetooth key instruction, the system will generate a user information list, and the information list contains bluetooth key PIN code, bluetooth response door opening distance, the internal reference signal of bluetooth response door opening.
Step 2: measuring an in-door signal; after bluetooth PIN sign indicating number setting is accomplished to bluetooth response lock, signal measurement step in bluetooth response lock initiating door, every 200ms acquires the signal of a bluetooth key and sends for the APP customer end, the user searches the bluetooth signal about 1 meter in the door, the strongest signal in APP customer end meeting automatic recording door, after the user searches to accomplish clicks the decision button for use, send indoor reference signal and give bluetooth response lock, the back is received to bluetooth response lock, in preserving this user information table to indoor reference signal value.
And 3, step 3: setting the door opening distance of the door; when the Bluetooth key is registered, the door opening distance outside the door needs to be set, and the Bluetooth key user opens the door and can open the door only when the set door opening distance is reached; when the bluetooth key registers, accomplish the interior signal measurement step back of door, carry out the distance setting of opening door outward, the bluetooth response lock initiates the distance setting step of opening door outward, and the user of uploading every 200ms of bluetooth response lock gives the APP customer end from the distance of bluetooth response lock, and distance message can show in real time on the APP interface, and convenience of customers looks over, after the user clicks the confirm button on the APP interface for use, and the distance setting of opening door outward is accomplished.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. A door opening method of a Bluetooth induction lock is characterized by comprising the following steps:
s1: receiving an unlocking signal of a Bluetooth key, performing security authentication on the Bluetooth key, and executing the next step if the authentication is passed;
s2: detecting a user distance outside a door;
s3: judging whether a user outside a door is at a preset door opening distance or not, and if so, executing the next step;
s4: and (6) unlocking.
2. The door opening method of the bluetooth induction lock according to claim 1, wherein in the step S2, a user distance outside the door is detected by a radar ranging module.
3. The door opening method of the bluetooth induction lock according to claim 1 or 2, further comprising the steps of:
s12: and after the Bluetooth key is subjected to security authentication, judging whether the Bluetooth key is out of the door, and if so, executing the next step.
4. The door opening method of claim 3, wherein in the step S12, the unlocking signal of the Bluetooth key is received through the Bluetooth directional antenna to determine the strength of the unlocking signal transmitted by the Bluetooth key, and whether the Bluetooth key is outside the door is determined according to the strength.
5. The door opening method of the Bluetooth induction lock according to claim 4, wherein the Bluetooth directional antenna points to the outside of the door, and whether the Bluetooth key is outside the door is determined based on the fact that the received unlocking signal of the Bluetooth key is greater than a preset threshold.
6. The method of claim 5, wherein the predetermined threshold is determined by using the strongest signal in the door as a reference signal and adding a modified value to the reference signal.
7. The door opening method of the Bluetooth induction lock according to claim 6, wherein the revision value is 5-10 db.
8. The door opening method of the Bluetooth induction lock according to any one of claims 1 to 7, wherein the Bluetooth key is a mobile communication device inserted with an SIM card, and the SIM card is integrated with a Bluetooth transmitting module.
9. The utility model provides a system of opening door of bluetooth response lock which characterized in that includes: bluetooth response lock and bluetooth key, bluetooth response lock includes:
the Bluetooth sensing module is used for receiving an unlocking signal of the Bluetooth key and sending the unlocking signal to the control module;
the radar ranging module is used for detecting the user distance outside the door and sending a detection signal to the control module;
and the control module is used for respectively receiving the signals of the Bluetooth induction module and the radar ranging module and judging: whether the Bluetooth key passes the safety certification and whether the user moves to the outside of the door for a preset distance or not, and is used for sending a signal to unlock the lock.
10. The door opening system of the bluetooth induction lock according to claim 9, wherein the bluetooth key is a mobile communication device inserted with a SIM card, and the bluetooth transmitting module is integrated on the SIM card.
11. The door opening system of the bluetooth induction lock according to claim 10, wherein a security chip is further integrated on the SIM card, and the security chip is used for protecting the information of the bluetooth key.
12. The door opening system of the Bluetooth induction lock according to any one of claims 9 to 11, wherein the Bluetooth induction module detects the received unlocking signal strength of the Bluetooth key by using a Bluetooth directional antenna, and the Bluetooth directional antenna points to the outside of the door and is in signal connection with the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412803.3A CN111667614A (en) | 2020-05-15 | 2020-05-15 | Door opening method and system of Bluetooth induction lock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412803.3A CN111667614A (en) | 2020-05-15 | 2020-05-15 | Door opening method and system of Bluetooth induction lock |
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| CN111667614A true CN111667614A (en) | 2020-09-15 |
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| CN202010412803.3A Pending CN111667614A (en) | 2020-05-15 | 2020-05-15 | Door opening method and system of Bluetooth induction lock |
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| CN113611016A (en) * | 2021-07-30 | 2021-11-05 | 重庆五州门业开发有限公司 | Bluetooth unlocking method, anti-theft lock and anti-theft door |
| CN113781683A (en) * | 2021-10-25 | 2021-12-10 | 广东沅朋网络科技有限公司 | Bluetooth-based non-inductive access control system |
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