High-safety non-inductive Bluetooth unlocking system used in intelligent door lock

Abstract

The utility model discloses a high-safety non-inductive Bluetooth unlocking system used in an intelligent door lock, and relates to the technical field of intelligent door locks. The anti-theft lock comprises a lock body, a central control unit, a Bluetooth communication module, a biological recognition module, an alarm module, an infrared detection module, a safety detection module and a power module, wherein the output end of the central control unit is bidirectionally and electrically connected with the input end of the Bluetooth communication module. Through the arrangement of the safety detection module and the alarm module, potential safety hazards can be found and processed in time, it is ensured that the lock body is always in a safe state, all-around safety protection is provided for a user, quick response can be achieved whether in the face of abnormal Bluetooth signals or the lock body is damaged by external force, and the user and security personnel can be informed in time; and the infrared detection module can sense the approaching of the user in advance, and is matched with the Bluetooth module to realize more intelligent unlocking preparation, so that the use convenience of the user is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of intelligent door lock, especially, relate to a high security non-inductive bluetooth unlocking system for use in intelligent door lock. BACKGROUND

[0002] With the rapid development of internet of things technology, intelligent door lock as the important entrance of smart home, gradually walks into people's life, and the bluetooth unlocking technology is widely applied in the field of intelligent door lock and access control system because of its low power consumption, low cost and the characteristics of being convenient to connect with mobile device, the early bluetooth unlocking system only realized the basic unlocking function, and the user can complete the door opening operation through the mobile phone bluetooth connection door lock and sends simple unlocking instruction, but along with people's life safety and convenience requirement unceasingly improves, this simple bluetooth unlocking system already can not satisfy the demand.

[0003] At present, the traditional intelligent door lock bluetooth signal works in the public frequency band of 2.4GHz, and the signal is susceptible to interference, and the criminal can use signal hijacking technology to steal the unlocking instruction without the user's knowledge, and by setting up the bluetooth signal amplifier and signal hijacking device, the communication data between the user's mobile phone and the door lock can be intercepted within a certain range, so that the unlocking password or instruction is obtained, and the door lock is illegally opened.

[0004] Therefore, we provide a high security non-inductive bluetooth unlocking system for use in intelligent door lock to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a high security non-inductive bluetooth unlocking system for use in intelligent door lock, which solves the problem of the intelligent door lock bluetooth signal working in the public frequency band of 2.4GHz in the prior art, and the signal is susceptible to interference and the unlocking instruction is stolen without the user's knowledge.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes.

[0007] The utility model discloses a high security non -inductive bluetooth system of opening of a kind of intelligent door lock, including lock body, central control unit, bluetooth communication module, biological recognition module, alarm module, infrared detection module, safety detection module and power module, the output of central control unit is bidirectionally electrically connected with the input of bluetooth communication module, the output of biological recognition module is unidirectionally electrically connected with the input of central control unit, the output of central control unit is unidirectionally electrically connected with the input of alarm module, the output of infrared detection module is unidirectionally electrically connected with the input of central control unit, the output of safety detection module is bidirectionally electrically connected with the input of central control unit, the system is mainly composed of lock body, user mobile device and background management server, central control unit is connected bluetooth communication module through SPI interface, bluetooth communication module adopts BLE5.0 low power consumption bluetooth chip, the chip has excellent low power consumption characteristics, can keep working state for a long time without frequently replacing battery, effectively reduce the energy consumption of lock body, the system can effectively resist various security attacks, guarantee the security of opening process and the confidentiality of user information, wherein biological recognition module and safety detection module play a key role, fingerprint and face recognition have uniqueness and irreproducibility, greatly improve the accuracy and security of identity verification, compared with traditional password or simple device pairing, almost impossible to be forged or stolen by others, further reduce the risk of theft, provide more solid protection for user property safety, safety detection module continuously monitors bluetooth signal strength, connection state and opening operation frequency etc. information through bluetooth communication module, once detects abnormal situation, such as abnormal signal fluctuation, frequent invalid opening attempt, central control unit immediately triggers defense mechanism.

[0008] The utility model further sets up, central control unit is connected bluetooth communication module through SPI interface, bluetooth communication module adopts BLE5.0 low power consumption bluetooth chip, the output and input of central control unit are electrically connected with storage module, storage module adopts large capacity's flash memory, BLE5.0 has remarkable improvement compared with previous generation on transmission distance and speed, transmission distance farthest can reach hundreds of meters, data transmission rate is faster, ensure when bluetooth data transmission is carried out with user mobile device, both can guarantee the high efficiency of data transmission, and can expand signal coverage range, central control unit is also connected with storage module, adopts large capacity's flash memory, for storing encryption key, user information and opening record data.

[0009] The utility model further sets up, the biological recognition module includes fingerprint identification sensor, face recognition camera and infrared light supplement lamp, the biological recognition module is connected with central control unit through I2C interface, the face recognition camera adopts high definition image sensor, the infrared light supplement lamp sets up in the outside of face recognition camera, face recognition camera adopts high definition image sensor, matches infrared light supplement lamp, can accurate collection user face image under different illumination conditions, the selected camera supports automatic focusing and wide dynamic range, ensure that also can clearly capture facial features under strong light, backlight and other complex environment.

[0010] The utility model further sets up, the alarm module includes local audible and visual alarm and wireless alarm transmitter, wireless alarm transmitter sends alarm information to user mobile device through bluetooth communication module, when detecting abnormal condition, local audible and visual alarm immediately sends high decibel alarm sound and scintillation light, causes surrounding personnel's attention, simultaneously, wireless alarm transmitter sends alarm information to user mobile device and background management server through bluetooth communication module or other wireless communication mode, such as wi-fi, 4G etc., ensure security personnel and user can know abnormal condition in time.

[0011] The utility model further sets up, the infrared detection module adopts infrared detection sensor, infrared detection sensor is connected with central control unit through GPIO interface, the safety detection module includes signal monitoring sensor, data acquisition chip and microcontroller, signal monitoring sensor is responsible for real time collection bluetooth signal strength, connection state etc. information, is connected with data acquisition chip through SPI interface. Data acquisition chip selects high performance ADC chip, can fast, accurate with sensor collection analog signal converts into digital signal, and transmission microcontroller, microcontroller adopts low power ARMCortex-M series chip, is responsible for the data that collects preliminary processing and analysis, infrared detection module is used for real time monitoring whether the doorway is close to people, when detecting human infrared signal, will signal transmission central control unit, central control unit receives signal, can according to preset program, advance wake-up bluetooth communication module or carry out other relevant operation, and the pilot light of door lock periphery provides convenience for user to open lock.

[0012] The utility model further sets up, the lock body surface is provided with handle, the fingerprint identification sensor sets up in the surface of handle, and the fingerprint identification module is installed in the surface of handle, and it is convenient for user to hold the process of opening the door to carry out fingerprint unlocking, improve the convenience in the process of unlocking.

[0013] The utility model further sets up, the power module includes rechargeable lithium cell and charging interface, the output of power module and the input of central control unit one -way electric connection, power module includes rechargeable lithium cell and charging interface can provide power support for this door lock.

[0014] The utility model further sets up, the lock body adopts alloy material quality to make, lock core adopts B grade lock core, the lock body adopts alloy material quality to make, can effectively improve the use intensity of lock body, avoid the possible of violent destruction.

[0015] The utility model has the advantages of the following.

[0016] 1, the utility model discloses a security detection module and the setting of alarm module can discover and handle security risks in time, ensure that the door lock is always in a safe state, provide all -round safety protection for the user, no matter face abnormal bluetooth signal or the door lock suffers external force destruction, can respond quickly, notify the user and security personnel in time, maximum degree reduces the loss, and the infrared detection module can sense the user's approach in advance, and cooperate with the bluetooth module to realize more intelligent unlocking preparation, improve the convenience of user's use, simultaneously, the long -distance transmission and high -speed data transmission brought by BLE5.0 low -power consumption bluetooth chip also further optimizes the user experience, and the user need not wait for connection and verification at the door, can quickly unlock and enter the door, improve the life and work efficiency.

[0017] 2, the utility model discloses a BLE5.0 low -power consumption bluetooth chip and reasonable hardware design are used, effectively reduce the energy consumption of lock body, reduce the battery replacement frequency, meet the energy -conserving and environment -protecting concept, also reduce the use cost of user, and the biological recognition module realizes more natural, convenient unlocking mode, and the user need not manually input password or operate mobile phone application, only need to put the finger on the fingerprint sensor easily, or stay in front of the face recognition camera slightly, can complete identity authentication quickly, save the unlocking time, especially suitable for the case of double -hand full article or anxious entry, improve the convenience of user's use. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing to do simple introduction.

[0019] Figure 1 It is a kind of high security non-inductive bluetooth unlocking system's system principle diagram used in intelligent door lock.

[0020] Figure 2 It is the composition diagram of biological recognition module in a kind of high security non-inductive bluetooth unlocking system used in intelligent door lock.

[0021] Figure 3It is a composition diagram of a security detection module in a high-security non-inductive Bluetooth unlocking system used in an intelligent door lock.

[0022] Figure 4 It is a composition diagram of an alarm module in a high-security non-inductive Bluetooth unlocking system used in an intelligent door lock.

[0023] Figure 5 It is a composition diagram of a power module in a high-security non-inductive Bluetooth unlocking system used in an intelligent door lock. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described below with reference to the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all the embodiments. Embodiment one

[0025] Please refer to Figures 1-5 The utility model discloses a high-security non-inductive Bluetooth unlocking system used in an intelligent door lock, which comprises a lock body, a central control unit, a Bluetooth communication module, a biological recognition module, an alarm module, an infrared detection module, a security detection module and a power module. The output end of the central control unit is bidirectionally electrically connected with the input end of the Bluetooth communication module. The output end of the biological recognition module is unidirectionally electrically connected with the input end of the central control unit. The output end of the central control unit is unidirectionally electrically connected with the input end of the alarm module. The output end of the infrared detection module is unidirectionally electrically connected with the input end of the central control unit. The output end of the security detection module is bidirectionally electrically connected with the input end of the central control unit.

[0026] Specifically, the system mainly comprises a lock body, a user mobile device and a background management server. The central control unit is connected with the Bluetooth communication module through an SPI interface. The Bluetooth communication module adopts a BLE5.0 low-power Bluetooth chip, which has excellent low-power characteristics and can keep working for a long time without frequent battery replacement, effectively reducing the energy consumption of the lock body. The system can effectively resist various security attacks and protect the security of the unlocking process and the confidentiality of user information. The biological recognition module and the security detection module play a key role. Fingerprint and face recognition have uniqueness and non-replicability, greatly improving the accuracy and security of identity verification. Compared with traditional passwords or simple device pairing, it is almost impossible to be forged or stolen by others, further reducing the risk of theft and providing more solid protection for user property safety. The security detection module continuously monitors the Bluetooth signal strength, connection state and unlocking operation frequency and other information through the Bluetooth communication module. Once an abnormal situation is detected, such as abnormal signal fluctuation and frequent invalid unlocking attempts, the central control unit triggers the defense mechanism immediately. Embodiment two

[0027] Please refer to Figures 1-5 On the basis of embodiment one, the central control unit is connected with the Bluetooth communication module through the SPI interface, the Bluetooth communication module adopts a BLE5.0 low-power Bluetooth chip, the output end and the input end of the central control unit are electrically connected with a storage module, the storage module adopts a large-capacity Flash memory, the biological recognition module includes a fingerprint recognition sensor, a face recognition camera and an infrared fill light, the biological recognition module is connected with the central control unit through an I2C interface, the face recognition camera adopts a high-definition image sensor, the infrared fill light is arranged on the outer side of the face recognition camera, the alarm module includes a local sound and light alarm and a wireless alarm transmitter, the wireless alarm transmitter sends alarm information to a user mobile device through the Bluetooth communication module, the infrared detection module adopts an infrared detection sensor, the infrared detection sensor is connected with the central control unit through a GPIO interface, the safety detection module includes a signal monitoring sensor, a data acquisition chip and a microcontroller, a handle is arranged on the surface of the lock body, the fingerprint recognition sensor is arranged on the surface of the handle, the power module includes a rechargeable lithium battery and a charging interface, the output end of the power module is unidirectionally and electrically connected with the input end of the central control unit, the lock body is made of an alloy material, and the lock cylinder adopts a B-grade lock cylinder.

[0028] Specifically: BLE5.0 has a significant improvement in transmission distance and speed compared to the previous generation, the transmission distance can reach hundreds of meters, the data transmission rate is faster, which ensures that when the Bluetooth data transmission with the user's mobile device, it can not only ensure the efficiency of data transmission, but also expand the signal coverage range, the central control unit is also connected with a storage module, which uses a large capacity of Flash memory to store encrypted keys, user information and unlocking records and other data, the face recognition camera uses a high-definition image sensor, which is matched with an infrared fill light, which can accurately collect user face images under different lighting conditions, the selected camera supports auto focus and wide dynamic range, which ensures that it can clearly capture facial features in complex environments such as strong light and backlight, when detecting abnormal conditions, the local audible alarm immediately emits a high-decibel alarm sound and flashing light to attract the attention of surrounding personnel, at the same time, the wireless alarm transmitter sends alarm information to the user's mobile device and the background management server through the Bluetooth communication module or other wireless communication methods such as Wi-Fi, 4G, etc., to ensure that security personnel and users can be aware of abnormal conditions in time, the infrared detection module is used to monitor whether someone is approaching the door in real time, when detecting human infrared signals, the signals are transmitted to the central control unit, the central control unit receives the signals and can wake up the Bluetooth communication module in advance or perform other related operations according to the preset program, and the indicator light around the lock body is lit to provide convenience for the user to unlock, the signal monitoring sensor is responsible for real-time collection of Bluetooth signal strength, connection state and other information, which is connected with the data acquisition chip through the SPI interface, the data acquisition chip selects a high-performance ADC chip, which can quickly and accurately convert the analog signals collected by the sensor into digital signals and transmit them to the microcontroller, the microcontroller uses a low-power ARMCortex-M series chip, which is responsible for preliminary processing and analysis of the collected data, the fingerprint recognition module is installed on the surface of the handle, which facilitates the user to hold the handle during the unlocking process, improving the convenience of the unlocking process, the power module includes a rechargeable lithium battery and a charging interface to provide power support for the lock body, the lock body is made of alloy material, which can effectively improve the use strength of the lock body and avoid the possibility of violent destruction.

[0029] The working principle of the utility model is: when the user carries the paired mobile phone close to the lock body, the infrared detection module detects the human infrared signal, transmits the signal to the central control unit, the central control unit awakens the Bluetooth communication module in advance, prepares to connect with the mobile phone, after the central control unit receives the instruction, carries out the verification, if the verification is passed, sends the instruction to the lock body, controls the lock cylinder in the lock body to withdraw, realizes the automatic unlocking of the lock body, in the running process of the lock body, the safety detection module continuously monitors the Bluetooth signal and the unlocking operation condition through the Bluetooth communication module, if the abnormality is detected, such as signal abnormal fluctuation or frequent invalid unlocking attempt, the central control unit freezes the Bluetooth unlocking function immediately, and triggers the alarm module, the local audible and visual alarm in the alarm module gives the alarm, the wireless alarm transmitter sends the alarm information to the user's mobile phone and the background management server through the Bluetooth communication module, after the user receives the alarm information, can view the abnormal details through the mobile phone application, and takes the corresponding measures, such as modifying the password, viewing the unlocking record etc.

[0030] The above disclosed utility model preferred embodiment is only used for helping to set forth the utility model, the preferred embodiment does not describe all the details, and also does not limit the utility model to only the specific implementation mode, the description selects and specifically describes these embodiments, is in order to better explain the principle and practical application of the utility model, thereby enabling the person skilled in the art to understand and utilize the utility model very well.

Claims

1. A high-security non-inductive Bluetooth unlocking system used in an intelligent door lock, comprising a lock body, a central control unit, a Bluetooth communication module, a biometric identification module, an alarm module, an infrared detection module, a safety detection module and a power module, characterized in that: An output end of the central control unit is bidirectionally electrically connected with an input end of the Bluetooth communication module, an output end of the biological recognition module is unidirectionally electrically connected with an input end of the central control unit, an output end of the alarm module is unidirectionally electrically connected with an input end of the central control unit, an output end of the infrared detection module is unidirectionally electrically connected with an input end of the central control unit, and an output end of the safety detection module is bidirectionally electrically connected with an input end of the central control unit.

2. A high security non-inductive Bluetooth unlocking system used in an intelligent door lock according to claim 1, characterized in that: The central control unit is connected with the Bluetooth communication module through an SPI interface, the Bluetooth communication module adopts a BLE5.0 low-power Bluetooth chip, and the output end and the input end of the central control unit are both electrically connected with a storage module, and the storage module adopts a large-capacity Flash memory.

3. A high security non-inductive Bluetooth unlocking system used in an intelligent door lock according to claim 1, characterized in that: The biological recognition module comprises a fingerprint recognition sensor, a face recognition camera and an infrared light supplement lamp, the biological recognition module is connected with the central control unit through an I2C interface, the face recognition camera adopts a high-definition image sensor, and the infrared light supplement lamp is arranged outside the face recognition camera.

4. A high security non-inductive Bluetooth unlocking system used in an intelligent door lock according to claim 1, characterized in that: The alarm module comprises a local sound-light alarm and a wireless alarm transmitter, and the wireless alarm transmitter sends alarm information to a user mobile device through the Bluetooth communication module.

5. A high security non-inductive Bluetooth unlocking system used in an intelligent door lock according to claim 1, characterized in that: The infrared detection module adopts an infrared detection sensor, the infrared detection sensor is connected with the central control unit through a GPIO interface, and the safety detection module comprises a signal monitoring sensor, a data acquisition chip and a microcontroller.

6. A high security non-inductive Bluetooth unlocking system used in an intelligent door lock according to claim 3, characterized in that: A handle is arranged on the surface of the lock body, and the fingerprint recognition sensor is arranged on the surface of the handle.

7. A high security non-inductive Bluetooth unlocking system used in an intelligent door lock according to claim 1, characterized in that: The power module comprises a rechargeable lithium battery and a charging interface, and an output end of the power module is unidirectionally electrically connected with an input end of the central control unit.

8. A high security non-inductive Bluetooth unlocking system used in an intelligent door lock according to claim 1, characterized in that: The lock body is made of an alloy material, and the lock core is a B-grade lock core.

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