CN107610292B - Bluetooth-based unlocking method of controllable-distance intelligent door lock - Google Patents
Bluetooth-based unlocking method of controllable-distance intelligent door lock Download PDFInfo
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- CN107610292B CN107610292B CN201710833085.5A CN201710833085A CN107610292B CN 107610292 B CN107610292 B CN 107610292B CN 201710833085 A CN201710833085 A CN 201710833085A CN 107610292 B CN107610292 B CN 107610292B
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Abstract
The invention discloses a Bluetooth-based unlocking method of a controllable-distance intelligent door lock, which comprises the following steps: starting to calibrate the signal strength; establishing Bluetooth connection between the mobile terminal and the intelligent door lock; the mobile terminal is close to the intelligent door lock, and the obtained current signal intensity is used as a zero-distance reference value to be written into the intelligent door lock; the intelligent door lock broadcasts the number and the zero-distance signal intensity of the intelligent door lock outwards; polling peripheral intelligent door locks by the mobile terminal, and storing information of all scanned intelligent door locks; the mobile terminal calculates the distances between the mobile terminal and all scanned intelligent door locks according to the numbers of the intelligent door locks received by broadcasting and the zero-distance signal intensity; acquiring the intelligent door lock closest to the mobile terminal, and judging whether the distance between the intelligent door lock closest to the mobile terminal reaches an unlocking distance, if so, controlling the intelligent door lock closest to the mobile terminal to unlock; otherwise, returning after delaying the set time. The invention has the advantages of lower cost, simple unlocking process, more accurate sensing distance and improved user experience.
Description
Technical Field
The invention relates to the field of intelligent access control, in particular to an unlocking method of a distance-controllable intelligent door lock based on Bluetooth.
Background
At present, current bluetooth lock is generally unblanked through the button of unblanking that clicks the cell-phone APP the inside, and the cell-phone at first need be opened to this process, then starts APP, clicks at last and unblanks. The whole process is complicated and not easy to use. The other is that a distance sensing module is added in the bluetooth device, when sensing that someone approaches, the bluetooth device is informed to broadcast, and then the unlocking operation is performed. The mode adds extra equipment, and is with high costs, and the design is complicated, is unfavorable for promoting.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the unlocking method of the controllable-distance intelligent door lock based on the Bluetooth, which has the advantages of lower cost, simple unlocking process, more accurate induction distance and improvement of user experience, aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the unlocking method for the controllable-distance intelligent door lock based on the Bluetooth is constructed and comprises the following steps:
A) starting to calibrate the signal strength;
B) establishing Bluetooth connection between a mobile terminal of an installer and the intelligent door lock; an APP for zero distance verification is installed on the mobile terminal of the installer;
C) the mobile terminal of the installer is close to the intelligent door lock, and the APP for zero distance verification acquires the current signal intensity and takes the current signal intensity as a zero distance reference value to be written into the intelligent door lock;
D) the intelligent door lock continuously broadcasts the serial number and the zero-distance signal intensity of the intelligent door lock;
E) polling peripheral intelligent door locks by a mobile terminal of an owner, and storing information of all scanned intelligent door locks in the mobile terminal of the owner; an APP for unlocking is installed on the mobile terminal of the owner;
F) the mobile terminal of the owner respectively calculates the distances between the mobile terminal of the owner and all the scanned intelligent door locks according to the numbers of the intelligent door locks received by broadcasting and the zero-distance signal intensity;
G) acquiring the nearest intelligent door lock, and judging whether the distance between the nearest intelligent door lock and the mobile terminal of the owner reaches the unlocking distance, if so, executing the step H); otherwise, returning to the step E) after delaying the set time;
H) the APP for unlocking unlocks the intelligent door lock closest to the APP.
In the unlocking method of the controllable-distance intelligent door lock based on the Bluetooth, the method also comprises the preprocessing step before the step E):
E0) and the mobile terminal of the owner downloads the number, the key and the encryption key of the intelligent door lock to be unlocked from the server side.
In the unlocking method of the bluetooth-based controllable distance intelligent door lock, the step H) further includes:
H1) the mobile terminal of the owner generates a first random number, encrypts the first random number by using the encryption key to obtain a first ciphertext, and then initiates a request to the nearest intelligent door lock to obtain a second random number generated by the nearest intelligent door lock;
H2) decrypting the first ciphertext through the decryption key implanted in the intelligent door lock closest to the intelligent door lock, and judging whether decryption is successful, if so, executing step H3); otherwise, ending;
H3) the intelligent door lock closest to the intelligent door lock stores the first random number obtained by decryption, generates a second random number, encrypts the first random number obtained by decryption and the generated second random number respectively by using the encryption key to obtain a second ciphertext, and returns the second ciphertext to the mobile terminal of the owner;
H4) the owner's mobile terminal decrypts the second ciphertext and judges whether the decryption is successful, if so, step H5 is executed); otherwise, ending;
H5) obtaining a first random number and a second random number returned after the decryption, judging whether the first random number returned is matched with the first random number local to the mobile terminal of the owner, if so, executing step H6); otherwise, ending;
H6) the mobile terminal of the owner integrates the returned first random number, the second random number, the key and the door opening instruction, and encrypts the integrated data by using the encryption key to obtain a third ciphertext;
H7) the owner mobile terminal initiates a door opening request to the nearest intelligent door lock;
H8) the intelligent door lock closest to the intelligent door lock decrypts the third ciphertext and judges whether decryption is successful, if so, step H9 is executed; otherwise, ending;
H9) comparing the first random number, the second random number and the key obtained by decryption with the local first random number, the second random number and the key of the intelligent door lock closest to the intelligent door lock respectively, and judging whether the first random number, the second random number and the key are consistent, if so, unlocking the intelligent door lock closest to the intelligent door lock, and executing step H10); otherwise, ending;
H10) and the intelligent door lock closest to the intelligent door lock returns the unlocking state to the mobile terminal of the owner.
In the unlocking method of the controllable-distance intelligent door lock based on the Bluetooth, the encryption key is an AES encryption algorithm.
In the unlocking method of the controllable-distance intelligent door lock based on the Bluetooth, the mobile terminal of an installer or the mobile terminal of an owner is a smart phone or a tablet computer.
The Bluetooth-based unlocking method of the controllable-distance intelligent door lock has the following beneficial effects: because need not to increase apart from the response module, carry out distance detection based on bluetooth, just can accurate calculation owner's mobile terminal and intelligent lock's distance, under the condition that does not increase extra hardware, make the response distance more accurate, its cost is lower, the process of unblanking is simple, the response distance is more accurate, improve user experience.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an embodiment of the unlocking method of the Bluetooth-based controllable distance intelligent door lock of the invention;
fig. 2 is a schematic connection diagram of a mobile terminal of an installer and an intelligent door lock in the embodiment;
fig. 3 is a specific flowchart of unlocking the nearest intelligent door lock by the APP for unlocking in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 embodiment of the unlocking method of the controllable-distance intelligent door lock based on the Bluetooth, the flow chart of the unlocking method of the controllable-distance intelligent door lock based on the Bluetooth is shown in fig. 1. In fig. 1, the unlocking method of the bluetooth-based controllable distance intelligent door lock includes the following steps:
step S01 begins calibrating signal strength: in this step, the calibration of the signal strength is started.
Step S02, establishing Bluetooth connection between the mobile terminal of the installer and the intelligent door lock: in this step, establish the bluetooth connection of installer's mobile terminal and intelligent lock. It is worth mentioning that installer's mobile terminal can be smart mobile phone or panel computer etc. installs the APP that is used for zero distance check on installer's mobile terminal, and this APP's that is used for zero distance check name can be named according to actual demand, for example: the assistant may be named by other names. Fig. 2 is a schematic diagram of connection between the mobile terminal of the installer and the intelligent door lock in this embodiment, and in fig. 2, the intelligent door lock includes a bluetooth module, a processing control module and a door lock body, the processing control module communicates with the mobile terminal through the bluetooth module, and the processing control module is used for controlling the door lock body to perform corresponding actions.
Step S03 closes the mobile terminal of the installer to the intelligent door lock, and the APP for zero distance check obtains the current signal strength and writes the current signal strength into the intelligent door lock as a zero distance reference value: the mobile terminal of the installer is close to the intelligent door lock, the APP for zero distance verification obtains the current signal strength, the current signal strength is used as a zero distance reference value to be written into the intelligent door lock, and therefore calibration is completed. After the calibration is completed, the subsequent interaction process of the intelligent door lock can be started.
Step S04 the number and the zero distance signal intensity of the intelligent door lock are continuously broadcasted to the outside: in the step, the intelligent door lock continuously broadcasts outwards, and the broadcast content comprises the number of the intelligent door lock and the zero-distance signal intensity.
Step S05, the owner 'S mobile terminal polls the neighboring smart door locks, and stores the information of all scanned smart door locks in the owner' S mobile terminal: and polling peripheral intelligent door locks by the mobile terminal of the owner, and storing the information of all scanned intelligent door locks in the mobile terminal of the owner. The owner's mobile terminal may be a smart phone or a tablet computer, etc. Install the APP that is used for unblanking on the mobile terminal of owner, this APP that is used for unblanking can name according to the actual demand, for example: the jacobian, of course, may be named otherwise.
Step S06, the owner 'S mobile terminal respectively calculates the distance between the owner' S mobile terminal and all scanned intelligent door locks according to the number of the intelligent door lock received by broadcasting and the zero distance signal intensity: in this step, the owner's mobile terminal calculates the distances between the owner's mobile terminal and all scanned intelligent door locks respectively according to the numbers of the intelligent door locks received by broadcasting and the zero-distance signal strength.
Step S07 obtains the nearest intelligent door lock, and determines whether the distance between the nearest intelligent door lock and the owner' S mobile terminal reaches the unlocking distance: in this step, the intelligent door lock closest to the owner 'S mobile terminal is selected from all the scanned intelligent door locks, and whether the distance between the intelligent door lock closest to the owner' S mobile terminal reaches the unlocking distance is judged, if so, step S09 is executed; otherwise, step S08 is executed.
Step S08 delays the set time: if the judgment result of the above step S07 is no, the present step is executed. In this step, the process returns to step S05 after a delay of a set time. It should be noted that, in practical applications, the setting time can be flexibly set according to specific situations.
Step S09 is used for the APP control that unlocks to unblank and unblanks apart from nearest intelligent lock: if the judgment result of the above step S07 is yes, the present step is executed. In this step, the APP for unlocking controls the intelligent door lock closest to the APP for unlocking.
The distance between the mobile terminal and the intelligent door lock can be accurately calculated without adding a distance sensing module, and the safe door opening distance can be adjusted according to business requirements and safety standards in practical application. The invention improves the traditional user experience of opening the door by using the Bluetooth of the mobile phone; under the condition of not increasing additional hardware, the sensing distance is more accurate, and the user experience is further improved; the door opening distance is controllable, so that the management is convenient, and the safety is improved. In addition, zero distance check-up and the action of unblanking operate on two different APPs respectively, can reduce the owner like this and use the degree of difficulty.
It should be noted that before the above step S05, a preprocessing step is further included:
s50, the mobile terminal of the owner downloads the number, the key and the encryption key of the intelligent door lock to be unlocked from the server side: in the step, the mobile terminal of the owner starts to prepare, and the serial number, the key and the encryption key of the intelligent door lock to be unlocked are downloaded from the server side, so that the subsequent unlocking process is facilitated. It is worth mentioning that the encryption key is the AES encryption algorithm. Of course, in some cases of the present embodiment, other types of encryption algorithms that can implement the encryption function of the present invention may also be used.
For the present embodiment, the step S09 can be further refined, and the detailed flowchart is shown in fig. 3. In fig. 3, the step S09 further includes:
step S901, a mobile terminal of a business owner generates a first random number, encrypts the first random number using an encryption key to obtain a first ciphertext, and then sends a request to a nearest smart door lock to obtain a second random number generated by the nearest smart door lock: in this step, the mobile terminal of the owner generates a first random number, encrypts the first random number by using the encryption key to obtain a first ciphertext, and requests to obtain a second random number required by a subsequent instruction, wherein the second random number is generated by the nearest intelligent door lock.
Step S902 decrypts the first ciphertext with the decryption key implanted in the nearest smart door lock, and determines whether decryption is successful: in this step, the first ciphertext is decrypted by a decryption key implanted in the nearest intelligent door lock, whether decryption is successful or not is judged, and if the judgment result is yes, step S904 is executed; otherwise, step S903 is executed.
Step S903 ends: if the judgment result of the step S902 is no, that is, the decryption fails, the present step is executed. In this step, the process ends.
Step S904, the smart door lock closest to the owner stores the first random number obtained by the decryption, generates a second random number, encrypts the first random number obtained by the decryption and the generated second random number using the encryption key, respectively, to obtain a second ciphertext, and returns the second ciphertext to the owner' S mobile terminal: and after the nearest intelligent door lock is successfully decrypted, a first random number is obtained, the first random number is stored in the nearest intelligent door lock, a second random number is generated by the nearest intelligent door lock, the first random number obtained by decryption and the generated second random number are respectively encrypted by using an encryption key to obtain a second ciphertext, and the second ciphertext is returned to the mobile terminal of the owner. After this step is executed, step S905 is executed.
Step S905, the mobile terminal of the owner decrypts the second ciphertext, and determines whether decryption is successful: in this step, the mobile terminal of the owner decrypts the second ciphertext and determines whether the decryption is successful, and if the determination result is yes, S907 is executed; otherwise, step S906 is performed.
Step S906 ends: if the judgment result of the above step S905 is no, that is, the decryption of the second ciphertext fails, the present step is executed. In this step, the process ends.
Step S907 obtains the returned first random number and second random number after this decryption, and determines whether the returned first random number matches the first random number local to the mobile terminal of the owner: if the judgment result in the step S905 is yes, that is, the second ciphertext is successfully decrypted, the step is executed. In this step, the returned first random number and the second random number are obtained after the decryption is successful, whether the returned first random number matches with the first random number local to the owner' S mobile terminal is judged, and if the judgment result is yes, step S909 is executed; otherwise, step S908 is performed.
Step S908 ends: if the judgment result of the step S905 is no, the present step is executed. In this step, the process ends.
Step S909, the owner' S mobile terminal integrates the returned first random number, second random number, key, and door opening command, and encrypts the integrated data using the encryption key to obtain a third ciphertext: in this step, the mobile terminal of the owner integrates the returned first random number, second random number, key and door opening instruction, that is, concatenates the first random number, second random number, key and door opening instruction, reads or transmits data in a serial manner, and then encrypts the integrated data by using the encryption key to obtain a third ciphertext.
Step S910, the mobile terminal of the owner initiates a door opening request to the nearest intelligent door lock: in this step, the owner's mobile terminal initiates a door opening request to the nearest intelligent door lock.
Step S911, the intelligent door lock closest to the intelligent door lock decrypts the third ciphertext, and judges whether decryption is successful: in this step, the nearest intelligent door lock decrypts the third ciphertext and determines whether decryption is successful, and if the determination result is yes, step S913 is executed; otherwise, step S912 is executed.
Step S912 ends: if the judgment result of the step S911 is negative, the step is executed. In this step, the process ends.
Step S913 compares the first random number, the second random number and the key obtained by decryption this time with the local first random number, the local second random number and the local key of the smart door lock closest to the first random number, the local second random number and the local key of the smart door lock, and determines whether they are the same: in this step, the first random number, the second random number and the key obtained by the decryption are compared with the local first random number, the second random number and the key of the intelligent door lock which are closest to each other respectively, and whether the two random numbers are consistent is judged, that is, the first random number obtained by the decryption is compared with the local first random number of the intelligent door lock, the second random number obtained by the decryption is compared with the local second random number of the intelligent door lock, the key obtained by the local decryption is compared with the local key of the intelligent door lock, whether the two random numbers are consistent is judged, and if the judgment result is yes, step S915 is executed; otherwise, step S914 is executed.
Step S914 ends: if the result of the determination of the above step S913 is no, the present step is executed. In this step, the process ends.
Step S915, unlocking the nearest intelligent door lock: if the judgment result of the above step S913 is yes, the present step is executed. In this step, the intelligent lock closest to is unblanked the action, specifically be used for the APP control that unblanks to carry out the action of unblanking apart from the nearest intelligent lock. After this step is executed, step S916 is executed.
Step S916, the nearest intelligent door lock returns the unlocking state to the owner' S mobile terminal: in this step, the nearest intelligent door lock returns the unlocking state to the mobile terminal of the owner. Thus, the unlocking function of the intelligent lock door is completed.
In a word, the invention can improve the traditional user experience of opening the door by using the Bluetooth of the mobile phone; under the condition of not increasing additional hardware, the sensing distance is more accurate, and the user experience can be further improved; the door opening distance is controllable, so that the intelligent door lock can be managed conveniently, and the safety of the intelligent door lock is improved. The unlocking process is simple, and the cost can be greatly reduced. The invention is not only suitable for unlocking the intelligent door lock, but also suitable for unlocking other intelligent access control equipment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The unlocking method of the controllable-distance intelligent door lock based on the Bluetooth is characterized by comprising the following steps of:
A) starting to calibrate the signal strength;
B) establishing Bluetooth connection between a mobile terminal of an installer and the intelligent door lock; an APP for zero distance verification is installed on the mobile terminal _ of the installer; the name of the APP used for zero distance checking is named as a Jacobian;
C) the mobile terminal of the installer is close to the intelligent door lock, and the APP for zero distance verification acquires the current signal intensity and takes the current signal intensity as a zero distance reference value to be written into the intelligent door lock;
D) the intelligent door lock continuously broadcasts the serial number and the zero-distance signal intensity of the intelligent door lock;
E) polling peripheral intelligent door locks by a mobile terminal of an owner, and storing information of all scanned intelligent door locks in the mobile terminal of the owner; an APP for unlocking is installed on the mobile terminal of the owner; the APP for unlocking is named as Yamao;
F) the mobile terminal of the owner respectively calculates the distances between the mobile terminal of the owner and all the scanned intelligent door locks according to the numbers of the intelligent door locks received by broadcasting and the zero-distance signal intensity;
G) acquiring the nearest intelligent door lock, and judging whether the distance between the nearest intelligent door lock and the mobile terminal of the owner reaches the unlocking distance, if so, executing the step H); otherwise, returning to the step E) after delaying the set time;
H) the APP for unlocking controls the intelligent door lock closest to the APP to unlock; before the step E), the method also comprises a pretreatment step:
E0) the mobile terminal of the owner downloads the number, the key and the encryption key of the intelligent door lock to be unlocked from the server side;
the step H) further comprises the following steps:
hl) the mobile terminal of the owner generates a first random number, encrypts the first random number by using the encryption key to obtain a first ciphertext, and then initiates a request to the nearest intelligent door lock to obtain a second random number generated by the nearest intelligent door lock;
H2) decrypting the first ciphertext through the decryption key implanted in the intelligent door lock closest to the intelligent door lock, and judging whether decryption is successful, if so, executing step H3); otherwise, ending;
H3) the intelligent door lock closest to the intelligent door lock stores the first random number obtained by decryption, generates a second random number, encrypts the first random number obtained by decryption and the generated second random number respectively by using the encryption key to obtain a second ciphertext, and returns the second ciphertext to the mobile terminal of the owner;
H4) the owner's mobile terminal decrypts the second ciphertext and judges whether the decryption is successful, if so, step H5 is executed); otherwise, ending;
H5) obtaining a first random number and a second random number returned after the decryption, judging whether the first random number returned is matched with the first random number local to the mobile terminal of the owner, if so, executing step H6); otherwise, ending;
H6) the mobile terminal of the owner integrates the returned first random number, the second random number, the key and the door opening instruction, and encrypts the integrated data by using the encryption key to obtain a third ciphertext;
H7) the owner mobile terminal initiates a door opening request to the nearest intelligent door lock;
H8) the intelligent door lock closest to the intelligent door lock decrypts the third ciphertext and judges whether decryption is successful, if so, step H9 is executed; otherwise, ending;
H9) comparing the first random number, the second random number and the key obtained by decryption with the local first random number, the second random number and the key of the intelligent door lock closest to the intelligent door lock respectively, and judging whether the first random number, the second random number and the key are consistent, if so, unlocking the intelligent door lock closest to the intelligent door lock, and executing step H10); otherwise, ending;
H10) and the intelligent door lock closest to the intelligent door lock returns the unlocking state to the mobile terminal of the owner.
2. The unlocking method of the bluetooth-based controllable distance intelligent door lock according to claim 1, wherein the encryption key is an AES encryption algorithm.
3. The unlocking method of the Bluetooth-based controllable-distance intelligent door lock according to claim 1, wherein the mobile terminal of an installer or the mobile terminal of an owner is a smart phone or a tablet computer.
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| WO2019227389A1 (en) * | 2018-05-31 | 2019-12-05 | 深圳市蚂蚁雄兵物联技术有限公司 | Interaction method for wireless door lock, and door lock system |
| CN109377606B (en) * | 2018-10-17 | 2022-12-23 | 深圳市华智创科智能科技有限公司 | Access control method and system |
| CN111163443B (en) * | 2018-10-19 | 2021-09-21 | 珠海格力电器股份有限公司 | Method and device for adjusting power consumption of Bluetooth lock |
| CN109636974A (en) * | 2018-12-11 | 2019-04-16 | 广东行远信息技术有限公司 | A kind of access control system based on IBEACON |
| CN112419543A (en) * | 2019-08-22 | 2021-02-26 | 国民科技(深圳)有限公司 | Unlocking method, mobile terminal, intelligent door lock, unlocking system and storage medium |
| CN112652091A (en) * | 2019-09-25 | 2021-04-13 | 北京车和家信息技术有限公司 | Vehicle unlocking method, vehicle machine and mobile terminal |
| CN111554008B (en) * | 2020-04-22 | 2024-01-16 | 支付宝(杭州)信息技术有限公司 | Digital key binding method, digital key verification method, mobile electronic equipment and near field communication device |
| CN114148285A (en) * | 2021-10-21 | 2022-03-08 | 中山市澳多电子科技有限公司 | Automobile lock opening and closing control method and system based on Bluetooth technology |
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| CN102568061B (en) * | 2010-12-30 | 2014-08-06 | 中国移动通信集团公司 | Method, system and device for achieving entrance guard control |
| CN104103111B (en) * | 2014-07-19 | 2016-08-17 | 张明 | Automatically-controlled door access control system based on Bluetooth of mobile phone communication and its implementation |
| CN105809777B (en) * | 2014-12-29 | 2019-06-18 | 腾讯科技（深圳）有限公司 | Access control system, client and the auth method of gate inhibition |
| CN105069864A (en) * | 2015-07-10 | 2015-11-18 | 西安电子科技大学 | Door lock control secure communication scheme based on NFC (near field communication) function of smart phone |
| CN106981107A (en) * | 2016-01-19 | 2017-07-25 | 福建省光速达物联网科技股份有限公司 | The unlocked by mobile telephone method and system of control of bluetooth access |
| CN106780901A (en) * | 2016-12-27 | 2017-05-31 | 李天瑜 | A kind of intelligent door lock system and its application based on mobile phone MAC Address |
| CN106971441B (en) * | 2017-04-28 | 2020-04-17 | 深圳星普森信息技术有限公司 | Unlocking method, door lock, key and lockset |
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