CN111667614A - A method and system for opening the door of a bluetooth sensor lock - Google Patents

Abstract

The invention provides a method for opening a door of a Bluetooth induction lock and a system thereof, belonging to the technical field of intelligent door locks; the method for opening a door of a Bluetooth induction lock includes the following steps: S1: Receive an unlocking signal of a Bluetooth key, and perform an unlocking operation on the Bluetooth key. Security authentication, if the authentication is passed, go to the next step; S2: Detect the user distance outside the door; S3: determine whether the user outside the door is within the preset opening distance, if so, go to the next step; S4: Unlock; the present invention The method of opening the door of the bluetooth induction lock, after receiving the unlocking signal of the bluetooth key, if the user is not within the range of the door opening, the door lock cannot be opened, which increases the safety performance of the bluetooth induction lock.

Description

A method and system for opening the door of a bluetooth sensor lock

technical field

The invention relates to the technical field of intelligent door locks, in particular to a method and a system for opening the door of a Bluetooth induction lock.

Background technique

With the improvement of people's living standards, the higher requirements for the intelligent type of the lock are mainly reflected in the more humanized and intelligent in its function and operation and use process.

The current open process of the Bluetooth smart door lock on the market is: when the Bluetooth smart door lock only needs to recognize that the mobile phone or the Bluetooth key is outside the door and belongs to a legitimate user, the door can be opened. When the user is far away from the home door or even when the user has not seen the home door, the Bluetooth smart door lock may interact with the user's mobile phone or Bluetooth key, so that the door lock can be opened by induction, resulting in poor security.

SUMMARY OF THE INVENTION

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the Bluetooth smart door lock in the prior art has poor safety when sensing the door to open the door, so as to provide a Bluetooth sensor lock door opening method with better safety performance and the same. its system.

In order to solve the above-mentioned technical problems, the door opening method of the bluetooth induction lock provided by the present invention comprises the following steps:

S1: Receive the unlocking signal of the bluetooth key, and perform security authentication on the bluetooth key, if the authentication is passed, execute the next step;

S2: Detect the user distance outside the door;

S3: Determine whether the user outside the door is within the preset door opening distance, and if so, execute the next step;

S4: Unlock.

As a preferred solution, in the step S2, the distance of the user outside the door is detected by the radar ranging module.

As a preferred version, it is characterized in that, also comprises the following steps:

S12: After the security authentication of the bluetooth key is passed, determine whether the bluetooth key is outside the door, and if so, execute the next step.

As a preferred solution, in the step S12, the unlocking signal of the Bluetooth key is received through a 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.

As a preferred solution, the Bluetooth directional antenna points to the outside of the door, and the received unlocking signal of the Bluetooth key is greater than a preset threshold to determine whether the Bluetooth key is outside the door.

As a preferred solution, the preset threshold is determined by taking the strongest signal in the gate as a reference signal, and adding a revised value to the reference signal.

As a preferred solution, the revision value is 5-10db.

As a preferred solution, the bluetooth key is a mobile communication device with a SIM card inserted therein, and a bluetooth transmitting module is integrated on the SIM card.

A door opening system of a bluetooth sensor lock, comprising: a bluetooth sensor lock and a bluetooth key, the bluetooth sensor lock comprises:

a bluetooth sensing module for receiving the unlocking signal of the bluetooth key and sending the unlocking signal to the control module;

The radar ranging module is used to detect the user distance outside the door and send the detection signal to the control module;

The control module is used to respectively receive the signals of the bluetooth sensing module and the radar ranging module, and determine whether the bluetooth key has passed the security authentication and whether the user has moved to a preset distance outside the door, and is used to send signals Unlock.

As a preferred solution, the bluetooth key is a mobile communication device with a SIM card inserted therein, and a bluetooth transmitting module is integrated on the SIM card.

As a preferred solution, a security chip is also integrated on the SIM card, and the security chip is used to protect the information of the Bluetooth key.

As a preferred solution, it is characterized in that the bluetooth sensing module uses a bluetooth directional antenna to detect the strength of the received unlocking signal of the bluetooth key, and the bluetooth directional antenna points out of the door and is signally connected to the control module. The technical scheme of the present invention has the following advantages:

1. The method for opening the door of the bluetooth induction lock provided by the present invention, after receiving the signal of the bluetooth key, also includes the detection of the distance of the user outside the door, and the door lock can be opened only when the user is at the preset opening distance; when the user is not opening the door. Within the distance range, even if the signal from the Bluetooth transmitter module is received, the door lock cannot be opened; the setting of the door opening distance increases the security performance of the Bluetooth sensor lock.

2. The method for opening the door of the Bluetooth induction lock provided by the present invention adopts the radar ranging module to detect the user distance outside the door, which can measure the distance stably, accurately, highly sensitively and at high speed, and realizes accurate distance sensing to open the door.

3. The method for opening the door of the bluetooth sensor lock provided by the present invention also includes judging whether the bluetooth transmitting module is outside the door or inside the door, and the next step user distance measurement operation can be performed only when the bluetooth transmitting module satisfies the condition that the bluetooth transmitting module is outside the door; Avoid the situation where the user is inside the door and the door lock is opened.

4. In the method for opening the door of the bluetooth induction lock provided by the present invention, the bluetooth directional antenna has a large forward gain, which can suppress the backward signal and increase the anti-interference ability; when the bluetooth directional antenna points out of the door, the difference between the front and rear signals is obvious. , the signal inside the door is weak, the strongest signal inside the door is used as the reference signal and the signal outside the door is compared, and the difference between the inside and outside of the door can be used to easily judge whether the Bluetooth transmitter module is outside the door, and the judgment is more accurate.

5. In the door opening system of the bluetooth induction lock provided by the present invention, the bluetooth key is a mobile communication device with a SIM card inserted, and adopts the induction method of the bluetooth SIM card, without opening a special bluetooth unlocking APP, which is more convenient to use.

6. The door opening system of the Bluetooth induction lock provided by the present invention, the setting of the security chip makes the Bluetooth interaction between the Bluetooth key and the Bluetooth induction lock encrypted in the whole process, which is more secure.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the door opening system of the Bluetooth induction lock provided in the present invention.

FIG. 2 is a flow chart of the method for opening the door of the Bluetooth induction lock provided in the present invention.

FIG. 3 is a flow chart of the registration of the Bluetooth key provided in the present invention.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts 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. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in FIG. 1 , this example provides a door opening system of a Bluetooth induction lock, including a Bluetooth induction module, a radar ranging module and a control module arranged in the Bluetooth induction lock, and also includes a Bluetooth key.

The radar ranging module is used to detect the user distance outside the door, and send the detection signal to the control module.

The bluetooth sensing module is used for receiving the unlocking signal of the bluetooth transmitting module, and sending the signal to the control module.

The bluetooth key is a mobile communication device with a SIM card inserted, and a bluetooth transmitting module is integrated on the SIM card; the mobile communication device is a mobile phone, and the bluetooth transmitting module can automatically send towards the bluetooth sensing module through the power of the mobile phone The SIM card is also integrated with a security chip, and the security chip is used to protect the information of the Bluetooth key. In addition, as an alternative implementation manner, the mobile phone may also adopt other mobile communication devices suitable for inserting a SIM card.

The bluetooth sensing module uses a bluetooth directional antenna to detect the strength of the received unlocking signal of the bluetooth key, and the bluetooth directional antenna points out of the door and is signally connected to the control module.

The control module receives the signals of the bluetooth sensing module and the radar ranging module respectively, and judges whether the bluetooth key has passed the security authentication, whether the user is outside the door, and whether the user has moved to a preset distance outside the door, and Send a signal to unlock.

Example 2

This example provides a method for unlocking a Bluetooth sensor lock, as shown in Figure 2, including the following steps:

Step S1: Receive the unlock signal of the bluetooth key, and perform security authentication on the bluetooth key, and if the authentication is passed, perform the next step; wherein, the bluetooth key is a mobile communication device with a SIM inserted, and the mobile communication A Bluetooth transmitter module is integrated on the device, and the Bluetooth transmitter module can automatically send signals toward the Bluetooth sensor module through the power supply of the mobile communication device; when the mobile communication device is close to the Bluetooth sensor lock, the Bluetooth sensor module on the Bluetooth sensor lock automatically scans Receive the signal of the bluetooth transmitting module, and make a bluetooth connection with the mobile communication; for the safety of the bluetooth induction lock to open the door and prevent malicious opening, after the bluetooth induction lock and the mobile communication are connected by bluetooth, the bluetooth The induction lock performs security authentication on the mobile communication device, the security authentication algorithm adopts the AES algorithm, and the key of each Bluetooth key security algorithm is unique.

Step S12: After the security authentication of the bluetooth key is passed, determine whether the bluetooth key is outside the door, and if so, execute the next step. Specifically, the Bluetooth induction lock is integrated with a Bluetooth directional antenna, and the Bluetooth directional antenna points out of the door. When the signal strength of the Bluetooth transmitting module received by the Bluetooth directional antenna is greater than a preset threshold, it is determined that the Bluetooth key is located outside the door. Wherein, the preset threshold value is determined by taking the strongest signal in the gate as the reference signal, and adding a revised value of 5-10db on the basis of the reference signal.

Step S2: Detecting the user distance outside the door. Specifically, the Bluetooth sensor lock is integrated with a radar ranging module, the radar ranging module adopts TOF laser radar, and the user distance outside the door is detected by the radar ranging module.

Step S3: Determine whether the user outside the door is within the preset door opening distance, and if so, execute the next step. The radar ranging module sends the detection signal to the control module, and the control module determines whether the user is within the preset door opening distance.

Step S4: unlocking.

In this embodiment, before unlocking, the Bluetooth key needs to be registered first.

As shown in Figure 3, the steps to register the Bluetooth key are as follows:

Step 1: Bluetooth PIN code setting; when opening the door by Bluetooth induction, the prerequisite is that Bluetooth authentication is required. Each Bluetooth key has a unique PIN code. The PIN code is the key of the Bluetooth authentication algorithm. When the Bluetooth induction lock is connected When the user's bluetooth key is used, the bluetooth key passes the PIN code for safety authentication according to the bluetooth safety authentication process, and the bluetooth induction door can be opened only after the safety authentication is passed.

On the APP client, the user presses the APP registration bluetooth key operation prompt, and enters the bluetooth key PIN code. After the bluetooth sensor lock receives the APP client registration bluetooth key instruction, the system will generate a user information list, and the information list contains the bluetooth key PIN code. , Bluetooth induction door opening distance, Bluetooth induction door open reference signal.

Step 2: Signal measurement in the door; after the Bluetooth induction lock completes the setting of the Bluetooth PIN code, the Bluetooth induction lock initiates the measurement of the signal in the door, obtains the signal of the Bluetooth key every 200ms and sends it to the APP client, and the user is 1 meter inside the door. Search for Bluetooth signals left and right, the APP client will automatically record the strongest signal in the door. After the user clicks the OK button after searching, it will send the reference signal in the door to the Bluetooth induction lock. After the Bluetooth induction lock is received, the reference signal value in the door will be saved in the in the user information table.

Step 3: Setting the distance to open the door outside the door; when registering the bluetooth key, you need to set the distance to open the door outside the door. The user of the bluetooth key needs to reach the set distance to open the door to open the door; when the bluetooth key is registered, the signal inside the door is completed. After the measurement step, set the door opening distance. The Bluetooth sensor lock initiates the door opening distance setting step. The Bluetooth sensor lock uploads the distance between the user and the Bluetooth sensor lock to the APP client every 200ms, and the distance information will be displayed on the APP interface in real time. It is convenient for users to view. After the user clicks the OK button on the APP interface, the setting of the door opening distance is completed.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present 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.

Images