CN114148285A - Automobile lock opening and closing control method and system based on Bluetooth technology - Google Patents
Automobile lock opening and closing control method and system based on Bluetooth technology Download PDFInfo
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- CN114148285A CN114148285A CN202111230405.0A CN202111230405A CN114148285A CN 114148285 A CN114148285 A CN 114148285A CN 202111230405 A CN202111230405 A CN 202111230405A CN 114148285 A CN114148285 A CN 114148285A
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- 230000000694 effects Effects 0.000 claims abstract description 13
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/10—Communication protocols, communication systems of vehicle anti-theft devices
- B60R2325/101—Bluetooth
Abstract
The invention discloses a method and a system for controlling the opening, closing and locking of an automobile based on a Bluetooth technology, wherein the method specifically comprises the steps that the automobile is connected with a key terminal with a Bluetooth module in a Bluetooth mode, and the signal intensity or distance between the automobile and the key terminal is obtained; a forced unlocking value, an unlocking value, a locking value, a protection value and a disconnection value are preset in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal; if the signal intensity is gradually increased or the distance is gradually reduced, the automobile is unlocked when the signal intensity or the distance reaches an unlocking value; if the signal intensity is gradually reduced or the distance is gradually increased, the automobile is locked when the signal intensity or the distance reaches a locking value, the forced unlocking value is effective, and the unlocking value is invalid; when the signal intensity or the distance reaches the protection value, the unlocking value takes effect again; when the signal strength or distance reaches the disconnection value, the automobile is disconnected from the key terminal. The problem that the lock is frequently jumped at critical signal intensity or critical distance is solved, and the meaningless locking and unlocking of the automobile are avoided.
Description
Technical Field
The invention relates to the technical field of automobile key control, in particular to an automobile lock opening and closing control method and system based on a Bluetooth technology.
Background
Along with the promotion of automotive electronics, the intelligent key develops more and more fast, wherein just including the comfortable entering system of bluetooth, the comfortable entering system of bluetooth makes the user carry under the circumstances that the bluetooth terminal that has certified is established with the car and is connected, can realize the car automatic unblank and close the lock when user and car exist the certain distance, has removed the vexation that the car owner turned over the car key from, has promoted car owner's use and has experienced, and the car owner need not hand-carried car key.
The working principle of the comfortable Bluetooth access system in the prior art is as follows: the automobile is provided with an unlocking value and a locking value according to the distance between the automobile and the authenticated Bluetooth terminal or the strength of signal strength, and when the authenticated Bluetooth terminal carried by a user moves until the distance between the automobile and the authenticated Bluetooth terminal is gradually increased or the signal strength is gradually reduced to reach the locking value, the automobile is locked; when the authenticated Bluetooth terminal carried by the user moves to the position where the distance between the authenticated Bluetooth terminal and the automobile is gradually reduced or the signal intensity is gradually increased to reach the unlocking value, the automobile is unlocked.
When the distance or signal strength varies within a critical range formed between the unlock value and the lock close value, the vehicle may be continuously unlocked and locked.
Disclosure of Invention
In order to solve the technical problems, the invention provides a vehicle lock-unlock control method based on the Bluetooth technology, which can solve the problem that a vehicle frequently and continuously locks at the critical signal intensity or the critical distance, and comprises the following steps:
a vehicle lock and unlock control method based on Bluetooth technology includes:
the method comprises the steps that a vehicle and a key terminal with a Bluetooth module establish Bluetooth connection, and the signal intensity or distance between the vehicle and the key terminal is obtained;
a forced unlocking value, an unlocking value, a locking value, a protection value and a disconnection value are preset in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal;
if the signal intensity is gradually increased or the distance is gradually reduced, the automobile is unlocked when the signal intensity or the distance reaches an unlocking value;
if the signal strength gradually decreases or the distance gradually increases,
when the signal intensity or the distance reaches a locking value, the automobile is locked, the forced unlocking value is effective, the unlocking value is invalid, the signal intensity is in an interval between a value smaller than the forced unlocking value and a value larger than the protection value, or the distance is larger than the forced unlocking value and the value smaller than the protection value, the automobile does not execute the unlocking or locking action, and when the signal intensity is increased or the distance is reduced to reach the forced unlocking value, the automobile is unlocked;
when the signal intensity or the distance reaches the protection value, the unlocking value takes effect again;
when the signal strength or distance reaches the disconnection value, the automobile is disconnected from the key terminal.
Preferably, the method for presetting the forced unlocking value, the closing value, the protection value and the disconnection value in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal comprises the following steps:
after an unlocking value and a locking value are preset in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal, a forced unlocking value is generated according to the preset unlocking value, and a protection value and a disconnection value are generated according to the preset locking value.
Preferably, the automobile is provided with a first Bluetooth module, the key terminal is provided with a second Bluetooth module, the first Bluetooth module transmits Bluetooth signals and establishes Bluetooth connection with the second Bluetooth module, and the signal intensity is indicated by received field intensity signals between the first Bluetooth module and the second Bluetooth module.
Preferably, the key terminal is a mobile terminal or pke electronic key.
This application has still provided a car switch lock control system based on bluetooth, includes:
a key terminal having a bluetooth module;
the automobile is used for establishing Bluetooth connection with a Bluetooth module of the key terminal and acquiring the signal intensity or distance between the automobile and the key terminal;
the key terminal is used for presetting a forced unlocking value, an unlocking value, a closing value, a protection value and a disconnection value which are sequentially far away from the automobile according to the signal intensity or the distance between the automobile and the key terminal;
if the signal intensity is gradually increased or the distance is gradually reduced, the automobile is unlocked when the signal intensity or the distance reaches an unlocking value;
if the signal strength gradually decreases or the distance gradually increases,
when the signal intensity or the distance reaches a locking value, the automobile is locked, the forced unlocking value is effective, the unlocking value is invalid, the signal intensity is in an interval between a value smaller than the forced unlocking value and a value larger than the protection value, or the distance is larger than the forced unlocking value and the value smaller than the protection value, the automobile does not execute the unlocking or locking action, and when the signal intensity is increased or the distance is reduced to reach the forced unlocking value, the automobile is unlocked;
when the signal intensity or the distance reaches the protection value, the unlocking value takes effect again;
when the signal strength or distance reaches the disconnection value, the automobile is disconnected from the key terminal.
The automobile lock and unlock control method and system based on the Bluetooth technology have the following advantages:
(1) after the automobile is connected with the key terminal through Bluetooth, if the signal intensity between the automobile and the key terminal is increased or the distance between the automobile and the key terminal is reduced to reach an unlocking value, the automobile is unlocked, and the automobile enters without a key;
(2) when the driver leaves the automobile, the signal intensity is gradually reduced or the distance is gradually increased until the signal intensity reaches a lock closing value, the automobile is automatically locked, and therefore the lock closing of the automobile is realized without a key;
(3) when the signal intensity is gradually reduced or the distance is gradually increased to reach the locking value, the forced unlocking value is effective after the automobile is automatically locked, the unlocking value is invalid, and the automobile is unlocked when the driver moves to the signal intensity again or the distance reaches the forced unlocking value, so that the phenomenon that the automobile is mistakenly unlocked when the driver moves in the interval between the forced unlocking value and the protection value when the signal intensity or the distance is between the forced unlocking value and the protection value is avoided, the function of the automobile entering without a key is ensured, and the phenomenon that the automobile is unintentionally locked and unlocked is also avoided;
(4) the forced unlocking value, the locking value, the protection value and the disconnection value which are sequentially far away from the automobile are set, so that the automobile can carry out unlocking or locking actions under different signal strengths or distances, and the automobile is prevented from frequently jumping and locking at the critical signal strength or the critical distance.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic step diagram of a vehicle lock/unlock control method based on bluetooth technology in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an automobile switch lock control system according to embodiment 3 of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example 1
Referring to fig. 1, an embodiment 1 of the present invention is provided, where the method for controlling an automobile switch lock based on a bluetooth technology specifically includes:
the method comprises the steps that a vehicle and a key terminal with a Bluetooth module establish Bluetooth connection, and the signal intensity between the vehicle and the key terminal is obtained;
presetting a forced unlocking value, an unlocking value, a locking value, a protection value and a disconnection value which are sequentially far away from the automobile according to the signal intensity between the automobile and the key terminal;
if the signal intensity is gradually increased to the state that the signal intensity is greater than or equal to the unlocking value, unlocking the automobile;
if the signal strength is gradually decreased and gradually increased,
when the signal intensity is smaller than or equal to the locking value and larger than the protection value, the automobile is locked, the forced unlocking value is effective, the unlocking value is invalid, the automobile does not execute the action when the key terminal moves in the interval between the signal intensity smaller than the forced unlocking value and larger than the protection value, and the automobile is unlocked when the signal intensity is increased to be larger than or equal to the forced unlocking value again;
when the signal intensity is continuously reduced to be less than or equal to the protection value and greater than the disconnection value, the unlocking value is effective again; then the key terminal moves towards the direction close to the automobile until the signal intensity is increased again to be larger than or equal to the unlocking value, and the automobile is unlocked;
when the signal strength is less than or equal to the disconnection value, the automobile is disconnected from the key terminal.
According to the above, it can be seen that:
when a driver carrying the key terminal approaches the automobile, the signal intensity between the key terminal and the automobile is gradually increased to a value when the signal intensity is larger than or equal to an unlocking value, the automobile is unlocked, and the keyless entry into the automobile is realized.
When a driver carrying the key terminal is far away from the automobile, the signal intensity between the key terminal and the automobile is gradually reduced, when the signal intensity is smaller than or equal to a locking value and larger than a protection value, the automobile is locked, the forced unlocking value takes effect at the moment, and the unlocking value is invalid; when the signal intensity is less than or equal to the protection value and greater than the disconnection value, the unlocking value takes effect again; when the signal strength is less than or equal to the disconnection value, the automobile is disconnected from the key terminal.
When the signal intensity between the key terminal and the automobile is reduced to be less than or equal to a locking value and greater than a protection value, the automobile is locked, and the automobile is unlocked only when the driver carries the key terminal to approach the automobile again until the signal intensity is greater than or equal to a forced unlocking value;
when the driver carries the key terminal to keep away from the automobile until the signal intensity is larger than or equal to the protection value and smaller than the disconnection value, the unlocking value takes effect again, and if the driver carries the key terminal to get close to the automobile again, when the signal intensity or the distance reaches the unlocking value, the automobile is unlocked.
Therefore, after a driver carrying the key terminal is far away from the automobile and locks the automobile, the phenomenon that the automobile is unlocked by mistake when the signal intensity or distance of the driver moves between a forced unlocking value and a protection value is avoided; the function of the automobile entering without a key is ensured, and the meaningless lock opening and closing of the automobile is also avoided.
Specifically, the method for presetting the forced unlocking value, the locking value, the protection value and the disconnection value in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal comprises the following steps:
after an unlocking value and a locking value are preset in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal, a forced unlocking value is generated according to the preset unlocking value, and a protection value and a disconnection value are generated according to the preset locking value.
In the embodiment, the value range of the unlocking value is 0 to-30 db, the value range of the locking value is 6 to-40 db, the value range of the protection value is-9 to-50 db, the value range of the disconnection value is-40 db, and the automobile can adjust the values of the unlocking value and the locking value according to the requirement of the automobile so as to be suitable for different use conditions.
Specifically, the automobile is provided with a first Bluetooth module, the key terminal is provided with a second Bluetooth module, the first Bluetooth module transmits Bluetooth signals and establishes Bluetooth connection with the second Bluetooth module, and the signal intensity is indicated by receiving field intensity signals between the first Bluetooth module and the second Bluetooth module.
If the signal strength gradually decreases or the distance gradually increases, it should be noted that, if the protection value and the disconnection value are overlapped, the unlocking value can be enabled to take effect again.
Example 2
Presetting a forced unlocking value, an unlocking value, a locking value, a protection value and a disconnection value which are sequentially far away from the automobile according to the distance between the automobile and the key terminal;
establishing Bluetooth connection with a key terminal to acquire the distance between the key terminal and the Bluetooth connection;
if the distance is gradually reduced to the current distance which is less than or equal to the unlocking value, the automobile is unlocked;
if the distance is gradually increased,
when the distance is greater than or equal to the locking value and less than the protection value, the automobile is locked, the forced unlocking value is effective, the unlocking value is invalid, when the distance is greater than the forced unlocking value and less than the protection value, the automobile does not execute the action, and when the distance is reduced again to reach the forced unlocking value, the automobile is unlocked;
when the distance is equal to or greater than the protection value and less than the disconnection value, the unlocking value takes effect again;
and when the distance is greater than or equal to the disconnection value, the automobile is disconnected with the key terminal.
According to the above, it can be seen that:
in this embodiment, five distance values of a forced unlocking value, an unlocking value, a locking value, a protection value and a disconnection value are preset, so that the distance between the automobile and the key terminal is acquired after the bluetooth connection is established between the first bluetooth module and the second bluetooth module, and the unlocking or locking action of the automobile is executed according to the distance between the automobile and the key terminal.
After the automobile acquires the received field intensity signal indication between the automobile and the second Bluetooth module through the first Bluetooth module, the automobile converts the acquired received field intensity signal indication into the distance between the first Bluetooth module and the second Bluetooth module, and therefore the distance between a driver and the automobile is obtained.
Specifically, in this embodiment, the distance is converted from the received field intensity signal indication, and the calculation formula of the distance is as follows: and d ^ 10 [ (RSSI-A)/10 x n ], wherein RSSI represents a received field strength signal indication, A represents the signal strength when the first Bluetooth module and the second Bluetooth module are separated by 1 meter, n represents an environment attenuation factor, and d represents the distance between the first Bluetooth module and the second Bluetooth module.
In this embodiment, the forced unlock value is set to 2m, the unlock value is set to 5m, the lock close value is set to 10m, the guard value is set to 15m, and the off value is set to 25 m.
The method specifically comprises the following steps:
acquiring a distance D between the automobile and the key terminal;
if the distance D is gradually decreased, then,
when the distance D is less than or equal to 5m, the automobile is unlocked;
if the distance D is gradually increased, then,
when the distance D is more than or equal to 10 and less than 15m, the automobile is locked, the forced unlocking value takes effect, and the unlocking value is invalid; then when the key terminal moves in the range that the distance between the key terminal and the automobile is more than 2m and less than D and less than 15m, the automobile does not execute unlocking and locking actions; when the distance between the key terminal and the automobile is reduced again to D less than or equal to 2m, the automobile is unlocked;
the distance D is continuously increased to be more than or equal to 15 and less than 25m, the unlocking value takes effect again, and if the distance between the key terminal and the automobile is reduced to be less than or equal to 5m again, the automobile is unlocked;
and the distance D is continuously increased to D more than or equal to 25m, and the key terminal is disconnected with the automobile.
The user can preset an unlocking value and a locking value according to the self requirement and the automobile, after the unlocking value and the locking value are preset, a forced unlocking value is generated according to the preset unlocking value, and a protection value and a disconnection value are generated according to the preset locking value, for example, the forced unlocking value is reduced by 2-3m on the basis of the unlocking value, the protection value is increased by 5m on the basis of the locking value, and the disconnection value is increased by 5m on the basis of the locking value.
Example 3
Referring to fig. 2, this embodiment provides a vehicle lock/unlock control system based on bluetooth technology, including:
a key terminal having a bluetooth module;
the automobile is used for establishing Bluetooth connection with a Bluetooth module of the key terminal and acquiring the signal intensity or distance between the automobile and the key terminal;
the key terminal is used for presetting a forced unlocking value, an unlocking value, a closing value, a protection value and a disconnection value which are sequentially far away from the automobile according to the signal intensity or the distance between the automobile and the key terminal;
if the signal intensity is gradually increased or the distance is gradually reduced, the automobile is unlocked when the signal intensity or the distance reaches an unlocking value;
if the signal strength gradually decreases or the distance gradually increases,
when the signal intensity or the distance reaches a locking value, the automobile is locked, the forced unlocking value is effective, the unlocking value is invalid, the signal intensity is in an interval between a value smaller than the forced unlocking value and a value larger than the protection value, or the distance is larger than the forced unlocking value and the value smaller than the protection value, the automobile does not execute the unlocking or locking action, and when the signal intensity is increased or the distance is reduced to reach the forced unlocking value, the automobile is unlocked;
when the signal intensity or the distance reaches the protection value, the unlocking value takes effect again;
when the signal strength or distance reaches the disconnection value, the automobile is disconnected from the key terminal.
The automobile switch lock control system based on the Bluetooth technology realizes automatic unlocking and locking of an automobile within a certain distance range, realizes keyless switch lock of the automobile, and the automobile performs unlocking or locking actions under different signal strengths or distances, so that the automobile is prevented from frequently jumping and locking at critical signal strength or critical distance.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (5)
1. A vehicle lock and unlock control method based on Bluetooth technology is characterized by comprising the following steps:
the method comprises the steps that a vehicle and a key terminal with a Bluetooth module establish Bluetooth connection, and the signal intensity or distance between the vehicle and the key terminal is obtained;
a forced unlocking value, an unlocking value, a locking value, a protection value and a disconnection value are preset in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal;
if the signal intensity is gradually increased or the distance is gradually reduced, the automobile is unlocked when the signal intensity or the distance reaches an unlocking value;
if the signal strength gradually decreases or the distance gradually increases,
when the signal intensity or the distance reaches a locking value, the automobile is locked, the forced unlocking value is effective, the unlocking value is invalid, the signal intensity is in an interval between a value smaller than the forced unlocking value and a value larger than the protection value, or the distance is larger than the forced unlocking value and the value smaller than the protection value, the automobile does not execute the unlocking or locking action, and when the signal intensity is increased or the distance is reduced to reach the forced unlocking value, the automobile is unlocked;
when the signal intensity or the distance reaches the protection value, the unlocking value takes effect again;
when the signal strength or distance reaches the disconnection value, the automobile is disconnected from the key terminal.
2. The method for controlling the opening, closing and locking of the automobile based on the bluetooth technology according to claim 1, wherein the method for presetting the forced opening value, the closing value, the protection value and the disconnection value in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal comprises the following steps:
after an unlocking value and a locking value are preset in sequence from near to far according to the signal strength or the distance between the automobile and the key terminal, a forced unlocking value is generated according to the preset unlocking value, and a protection value and a disconnection value are generated according to the preset locking value.
3. The method as claimed in claim 1, wherein the vehicle has a first bluetooth module, the key terminal has a second bluetooth module, the first bluetooth module transmits a bluetooth signal and establishes a bluetooth connection with the second bluetooth module, and the signal strength is an indication of a received field strength signal between the first bluetooth module and the second bluetooth module.
4. The vehicle switch lock control method based on the Bluetooth technology as claimed in any one of claims 1 to 3, wherein the key terminal is a mobile terminal or pke electronic key.
5. A car switch lock control system based on bluetooth, its characterized in that includes:
a key terminal having a bluetooth module;
the automobile is used for establishing Bluetooth connection with a Bluetooth module of the key terminal and acquiring the signal intensity or distance between the automobile and the key terminal;
the key terminal is used for presetting a forced unlocking value, an unlocking value, a closing value, a protection value and a disconnection value which are sequentially far away from the automobile according to the signal intensity or the distance between the automobile and the key terminal;
if the signal intensity is gradually increased or the distance is gradually reduced, the automobile is unlocked when the signal intensity or the distance reaches an unlocking value;
if the signal strength gradually decreases or the distance gradually increases,
when the signal intensity or the distance reaches a locking value, the automobile is locked, the forced unlocking value is effective, the unlocking value is invalid, the signal intensity is in an interval between a value smaller than the forced unlocking value and a value larger than the protection value, or the distance is larger than the forced unlocking value and the value smaller than the protection value, the automobile does not execute the unlocking or locking action, and when the signal intensity is increased or the distance is reduced to reach the forced unlocking value, the automobile is unlocked;
when the signal intensity or the distance reaches the protection value, the unlocking value takes effect again;
when the signal strength or distance reaches the disconnection value, the automobile is disconnected from the key terminal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158219A (en) * | 2022-06-23 | 2022-10-11 | 中山市澳多电子科技有限公司 | Automobile handle lock opening and closing control method and system based on Bluetooth technology |
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