CN112009421A - Locking and unlocking method and system for vehicle - Google Patents
Locking and unlocking method and system for vehicle Download PDFInfo
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- CN112009421A CN112009421A CN201910457306.2A CN201910457306A CN112009421A CN 112009421 A CN112009421 A CN 112009421A CN 201910457306 A CN201910457306 A CN 201910457306A CN 112009421 A CN112009421 A CN 112009421A
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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
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
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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
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
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Abstract
The application provides a locking and unlocking method and a system of a vehicle, wherein the method comprises the following steps: the target vehicle transmits a first detection signal according to a first set frequency; the target vehicle judges whether confirmation information returned by the target key in response to the first detection signal is received; if so, the target vehicle transmits a second detection signal according to a second set frequency; the target vehicle receives confirmation information returned by the target key in response to the second detection signal; the target vehicle respectively determines the distance between a target key and the target vehicle according to the received signal intensity values; the target vehicle determines the variation trend of the distance between the target key and the target vehicle according to the distances between the target key and the target vehicle; if the change trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation; and if the change trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation. According to the unlocking or locking method and the unlocking or locking device, the false triggering of unlocking or locking can be reduced, and the unlocking or locking accuracy is improved.
Description
Technical Field
The application relates to the technical field of intelligent driving, in particular to a locking and unlocking method and system for a vehicle.
Background
With the intelligent development of automobiles, a part of automobiles have been actively unlocked or locked, for example, when an owner of the automobile approaches the automobile with a legal key, the automobile is actively unlocked; when the owner leaves the vehicle with the legal key, the vehicle is actively locked.
Although the automobile can be actively unlocked and locked, the accuracy of unlocking and locking the automobile is high for users, so that how to accurately unlock and lock the automobile becomes a problem.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present application provide a method and a system for locking and unlocking a vehicle, so as to achieve the purposes of reducing false triggering of unlocking or locking and improving the accuracy of unlocking or locking, and the technical scheme is as follows:
a vehicle locking and unlocking method includes:
the target vehicle transmits a first detection signal according to a first set frequency;
the target vehicle judges whether confirmation information returned by a target key responding to the first detection signal is received;
if so, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency;
the target vehicle receives the confirmation information returned by the target key in response to the second detection signal, and the confirmation information returned by the target key in response to the second detection signal at least comprises: measuring the intensity of the second detection signal to obtain a signal intensity value;
the target vehicle respectively determines the distance between the target key and the target vehicle according to the received signal intensity values;
the target vehicle determines the variation trend of the distance between the target key and the target vehicle according to the distances between the target key and the target vehicle;
if the change trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation;
and if the change trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation.
Preferably, before the target vehicle performs the unlocking operation, the method further includes:
the target vehicle judges whether the target key is in a first set interval;
if so, the target vehicle judges whether the target vehicle is in a locked state;
and if so, the target vehicle executes unlocking operation.
Preferably, the method further comprises:
judging whether the duration of transmitting a second detection signal according to the second set frequency exceeds a set threshold value;
and if so, stopping transmitting the second detection signal according to the second set frequency, and returning to execute the step of transmitting the first detection signal according to the first set frequency.
Preferably, before the target vehicle performs the locking operation, the method further includes:
the target vehicle judges whether the target key exists in a second set interval or not;
if not, the target vehicle executes locking operation.
A locking and unlocking system of a vehicle, comprising:
the first transmitting module is used for transmitting a first detection signal according to a first set frequency;
the first judgment module is used for judging whether confirmation information returned by the target key responding to the first detection signal is received or not, and if yes, the second transmission module is executed;
the second transmitting module is configured to transmit a second probe signal according to a second set frequency, where the second set frequency is higher than the first set frequency;
a first receiving module, configured to receive acknowledgement information returned by the target key in response to the second probe signal, where the acknowledgement information returned by the target key in response to the second probe signal at least includes: measuring the intensity of the second detection signal to obtain a signal intensity value;
the first determining module is used for respectively determining the distance between the target key and the target vehicle according to the received signal strength values;
the second determination module is used for determining the variation trend of the distance between the target key and the target vehicle according to the distances between the target key and the target vehicle;
the first execution module is used for executing unlocking operation by the target vehicle if the variation trend of the distance between the target key and the target vehicle is from large to small;
and the second execution module is used for executing locking operation on the target vehicle if the trend of the distance between the target key and the target vehicle is from small to large.
Preferably, the system further comprises:
the second judgment module is used for judging whether the target key is in a first set interval or not, and if so, the third judgment module is executed;
and the third judgment module is used for judging whether the target vehicle is in a locked state or not, and if so, executing unlocking operation.
Preferably, the system further comprises:
a fourth judging module, configured to judge whether a duration of transmitting a second detection signal according to the second set frequency exceeds a set threshold, and if so, execute the stopping module;
and the stopping module is used for stopping transmitting the second detection signal according to the second set frequency and returning to execute the step of transmitting the first detection signal according to the first set frequency.
Preferably, the system further comprises:
and the fifth judging module is used for judging whether the target key exists in a second set interval before the target vehicle performs the locking operation, and if not, performing the locking operation.
Compared with the prior art, the beneficial effect of this application is:
in the application, a target vehicle transmits a first detection signal according to a first set frequency, realizes uninterrupted transmission of the detection signal, and judges whether confirmation information returned by a target key in response to the first detection signal is received, if so, transmits a second detection signal according to a second set frequency higher than the first set frequency, increases the transmission density of the detection signal, and receives confirmation information returned by the target key in response to the second detection signal, wherein the confirmation information at least comprises a signal intensity value obtained by measuring the intensity of the first detection signal, on the basis, the target vehicle can respectively determine different distances between the target key and the target vehicle according to the signal intensity values, determine the variation trend of the distance between the target key and the target vehicle according to a plurality of different distances, unlock or lock according to the variation trend of the distance, the false triggering of unlocking or locking can be reduced, and the accuracy of unlocking or locking is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a flowchart of a locking and unlocking method for a vehicle according to the present application;
FIG. 2 is another flow chart of a method for locking and unlocking a vehicle provided by the present application;
FIG. 3 is a further flowchart of a method for locking and unlocking a vehicle according to the present disclosure;
FIG. 4 is a flowchart of another method for locking and unlocking a vehicle according to the present disclosure;
FIG. 5 is a flowchart illustrating a method for locking and unlocking a vehicle according to the present disclosure;
FIG. 6 is a flowchart illustrating a method for locking and unlocking a vehicle according to the present disclosure;
fig. 7 is a schematic logical structure diagram of a locking and unlocking system of a vehicle according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The embodiment of the application discloses a locking and unlocking method of a vehicle, which comprises the following steps: the target vehicle transmits a first detection signal according to a first set frequency; the target vehicle receives confirmation information returned by the target key in response to the first detection signal, and the confirmation information serves as first confirmation information, and the first confirmation information at least comprises: measuring the strength of the first detection signal to obtain a signal strength value; the target vehicle respectively determines the distance between the target key and the target vehicle according to the received signal intensity values; the target vehicle determines the variation trend of the distance between the target key and the target vehicle according to the distances between the target key and the target vehicle; if the change trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation; and if the change trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation. In the present application, the accuracy of unlocking or locking can be improved.
Referring to fig. 1, a method for locking and unlocking a vehicle according to an embodiment of the present disclosure is described below, which may include:
step S11, the target vehicle transmits a first probe signal according to a first set frequency.
The steps can be applied to the scenes of unlocking and locking the target vehicle. If the target vehicle is in a locked state, a scene that the target vehicle needs to be unlocked is provided; the user leaves the target vehicle and needs to lock the target vehicle when the last door of the target vehicle is closed.
When the method is applied to a scene locked by a target vehicle, the process of transmitting the first detection signal by the target vehicle according to the first set frequency may include:
a11, when the user leaves the target vehicle and the last door of the target vehicle is closed, judging whether the target key exists in the target vehicle.
If not, go to step A12.
And A12, judging whether the target key exists outside the target vehicle.
If so, step A13 is performed.
A13, the target vehicle transmits a first detection signal according to a first set frequency.
It should be noted that the magnitude of the first setting frequency can be flexibly set according to different application scenarios. For example, the first set frequency in the lock scenario may be higher than the first set frequency in the unlock scenario.
In this embodiment, the first probe signal may be transmitted by an antenna disposed outside the target vehicle at a first set frequency. Wherein the antenna may be disposed at any position outside the target vehicle. Preferably, the antenna may be disposed on the target vehicle outside door handle.
And step S12, the target vehicle judges whether the confirmation information returned by the target key in response to the first detection signal is received.
If yes, go to step S13.
And S13, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency.
After the step S12 determines that the confirmation information returned by the target key in response to the second detection signal is received, it indicates that the target key is detected within a reasonable distance interval, so this step may employ a higher set frequency to transmit the second detection signal, thereby further improving the accuracy of unlocking.
And S14, the target vehicle receives the confirmation information returned by the target key in response to the second detection signal.
The confirmation information returned by the target key in response to the second detection signal at least comprises: and measuring the intensity of the second detection signal to obtain a signal intensity value.
Preferably, the confirmation information returned by the target key in response to the second detection signal may further include: identity information of the target key.
It will be appreciated that each time the target key receives a second probe signal, the target key returns an acknowledgement in response to the second probe signal. The target vehicle will receive multiple confirmation messages.
Step S15, the target vehicle determines the distance between the target key and the target vehicle according to the received signal strength values.
Based on the plurality of pieces of confirmation information received by the target vehicle in step S14, the target vehicle may determine the distance between the target key and the target vehicle, respectively, according to the signal strength value in each piece of confirmation information received.
The target vehicle may look up a distance corresponding to the signal intensity value from a pre-constructed signal intensity value mapping table as the distance between the target key and the target vehicle. The mapping relation between the signal strength value and the distance is recorded in the signal strength mapping table.
It should be noted that the confirmation information returned by the target key in response to the second detection signal includes: when the signal intensity value and the identity information of the target key are obtained, the target vehicle can verify the identity information of the target key, and after the identity information of the target key is legal, the distance between the target key and the target vehicle is respectively determined according to the received signal intensity values, so that the execution safety of subsequent operations (such as unlocking) is improved.
Step S16, the target vehicle determines a trend of change in the distance between the target key and the target vehicle according to the respective distances between the target key and the target vehicle.
The determining, by the target vehicle, a trend of change in the distance between the target key and the target vehicle according to the respective distances between the target key and the target vehicle may include:
and the target vehicle compares the distances between the target key and the target vehicle to obtain a comparison result, and determines the variation trend of the distance between the target key and the target vehicle according to the comparison result.
For example, according to the sequence of the received signal strength values, the distances between the target key and the target vehicle are respectively represented as A, B, C, and if a is 3 meters, B is 2.4 meters, and C is 1.6 meters, the comparison result is that a > B > C, and the trend of the distance between the target key and the target vehicle changes from large to small.
Or, according to the sequence of the received signal intensity values, the distances between the target key and the target vehicle are respectively represented as C, B, A, if a is 3 meters, B is 2.4 meters, and C is 1.6 meters, the comparison result is that C < B < a, and the trend of the distance between the target key and the target vehicle changes from small to large.
And step S17, if the variation trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation.
If the change trend of the distance between the target key and the target vehicle is from large to small, the motion track of the target key can be determined to be close to the target vehicle, and therefore the target vehicle can execute unlocking operation.
And step S18, if the trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation.
If the trend of the distance between the target key and the target vehicle is from small to large, the movement track of the target key can be determined to be far away from the target vehicle, and therefore the target vehicle can perform locking operation.
After the target vehicle performs the locking operation, the target vehicle may determine whether to start the active welcome mode by determining whether the target key is in the vehicle detection area. If the target key is not in the vehicle detection area, the active welcome mode can be started, the operation returns to the step S11, the unlocking operation is further executed, and the situation of mistaken unlocking is reduced.
The specific implementation manner that the target vehicle determines whether to start the active welcome mode by judging whether the target key is in the vehicle detection area may include:
when the target vehicle is in an external locking state, the PEPS in the target vehicle drives the external low-frequency antenna of the vehicle to search for a target key, if the target key is not found, the active welcome mode is started, and the external antenna of the vehicle is driven by the PEPS to transmit a first detection signal at a first set frequency; if the target key is found, the antenna is driven to transmit a first detection signal according to a first set frequency until the active welcome mode is started after the target key cannot be detected in a determined area near the target vehicle.
In the application, a target vehicle transmits a first detection signal according to a first set frequency, realizes uninterrupted transmission of the detection signal, and judges whether confirmation information returned by a target key in response to the first detection signal is received, if so, transmits a second detection signal according to a second set frequency higher than the first set frequency, increases the transmission density of the detection signal, and receives confirmation information returned by the target key in response to the second detection signal, wherein the confirmation information at least comprises a signal intensity value obtained by measuring the intensity of the first detection signal, on the basis, the target vehicle can respectively determine different distances between the target key and the target vehicle according to the signal intensity values, determine the variation trend of the distance between the target key and the target vehicle according to a plurality of different distances, unlock or lock according to the variation trend of the distance, the false triggering of unlocking or locking can be reduced, and the accuracy of unlocking or locking is improved.
In another embodiment of the present application, another method for locking and unlocking a vehicle is provided, and referring to fig. 2, the method may include:
step S21, the target vehicle transmits a first probe signal according to a first set frequency.
And step S22, the target vehicle judges whether the confirmation information returned by the target key in response to the first detection signal is received.
If yes, go to step S23.
And S23, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency.
And S24, the target vehicle receives the confirmation information returned by the target key in response to the second detection signal.
The confirmation information returned by the target key in response to the second detection signal at least comprises: and measuring the intensity of the second detection signal to obtain a signal intensity value.
Step S25, the target vehicle determines the distance between the target key and the target vehicle according to the received signal strength values.
Step S26, the target vehicle determines a trend of change in the distance between the target key and the target vehicle according to the respective distances between the target key and the target vehicle.
Steps S21-S26 are the same as steps S11-S16 in the previous embodiment, and the detailed procedures of steps S21-S26 can be referred to the related descriptions of steps S11-S16, and are not described herein again.
Step S27, if the trend of the distance between the target key and the target vehicle is from large to small, the target vehicle determines whether the target key is in a first setting interval.
If yes, go to step S28.
The first setting interval may be understood as: a region closer to the target vehicle. The first setting interval can be flexibly set according to actual needs.
Step S28, the target vehicle determines whether the target vehicle is in a locked state.
If yes, go to step S29.
Step S29, the target vehicle performs an unlocking operation.
On the basis that the variation trend of the distance between the target key and the target vehicle is from large to small, whether the target key is in a first set interval or not and whether the target vehicle is in a locking state or not are further judged, and the unlocking accuracy can be further improved.
The detailed process of step S29 can be referred to the related description of step S17 in the foregoing embodiment, and is not described herein again.
Step S210, if the trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation.
Step S210 is the same as step S18 in the foregoing embodiment, and the detailed process of step S210 can refer to the related description of step S18, which is not described herein again.
In another embodiment of the present application, another method for locking and unlocking a vehicle is described, and referring to fig. 3, the method may include:
step S31, the target vehicle transmits a first probe signal according to a first set frequency.
And step S32, the target vehicle judges whether the confirmation information returned by the target key in response to the first detection signal is received.
If yes, go to step S33.
And S33, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency.
And S34, the target vehicle receives the confirmation information returned by the target key in response to the second detection signal.
The confirmation information returned by the target key in response to the second detection signal at least comprises: and measuring the intensity of the second detection signal to obtain a signal intensity value.
Step S35, the target vehicle determines the distance between the target key and the target vehicle according to the received signal strength values.
Step S36, the target vehicle determines a trend of change in the distance between the target key and the target vehicle according to the respective distances between the target key and the target vehicle.
And step S37, if the variation trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation.
Step S38, if the trend of the distance between the target key and the target vehicle is not from large to small, the target vehicle determines whether the target key is in a first setting interval.
Non-large to small can be understood as: the size of the sample is not always from large to small, for example, from large to small, then from small to large. After the user moves from big to small, the corresponding user movement track from small to big is as follows: the user approaches the target vehicle for a certain distance and then moves away from the target vehicle.
In this embodiment, if the trend of the change of the distance between the target key and the target vehicle is non-decreasing, the target vehicle determines whether the target key is in a first set interval, so as to further ensure the accuracy of unlocking.
The detailed process of the target vehicle determining whether the target key is in the first setting interval may refer to the related description of step S27 in the foregoing embodiment, and is not repeated herein.
If yes, go to step S37.
Step S39, the target vehicle determines whether the target vehicle is in a locked state.
If yes, go to step S310.
And S310, the target vehicle executes unlocking operation.
Steps S39-S310 are the same as steps S28-S29 in the previous embodiment, and the detailed procedures of steps S39-S310 can be referred to the related descriptions of steps S28-S29, which are not repeated herein.
Step S311, if the trend of the distance between the target key and the target vehicle is from small to large, the target vehicle performs a locking operation.
Step S311 is the same as step S210 in the foregoing embodiment, and the detailed process of step S311 can refer to the related description of step S210, which is not described herein again.
In another embodiment of the present application, another method for locking and unlocking a vehicle is described, and referring to fig. 4, the method may include:
step S41, the target vehicle transmits a first probe signal according to a first set frequency.
And step S42, the target vehicle judges whether the confirmation information returned by the target key in response to the first detection signal is received.
If yes, go to step S43.
And S43, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency.
And S44, the target vehicle receives the confirmation information returned by the target key in response to the second detection signal.
The confirmation information returned by the target key in response to the second detection signal at least comprises: and measuring the intensity of the second detection signal to obtain a signal intensity value.
Step S45, the target vehicle determines the distance between the target key and the target vehicle according to the received signal strength values.
Step S46, the target vehicle determines a trend of change in the distance between the target key and the target vehicle according to the respective distances between the target key and the target vehicle.
And step S47, if the variation trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation.
And step S48, if the trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation.
Steps S41-S48 are the same as steps S11-S18 in the previous embodiment, and the detailed procedures of steps S41-S48 can be referred to the related descriptions of steps S11-S18, and are not described herein again.
And step S49, judging whether the duration of the second detection signal transmitted according to the second set frequency exceeds a set threshold value.
If yes, go to step S410.
The set threshold value can be flexibly set according to needs.
And step S410, stopping transmitting the second detection signal according to the second set frequency, and returning to execute the step S51.
And stopping transmitting the second detection signal according to the second set frequency on the basis that the duration of transmitting the second detection signal according to the second set frequency exceeds the set threshold in the step S49, and returning to execute the step A41 to avoid the too fast consumption of the electric quantity of the storage battery of the target vehicle so as to save resources.
In another embodiment of the present application, another method for locking and unlocking a vehicle is described, and referring to fig. 5, the method may include:
step S51, the target vehicle transmits a first probe signal according to a first set frequency.
And step S52, the target vehicle judges whether the confirmation information returned by the target key in response to the first detection signal is received.
If yes, go to step S53.
And S53, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency.
And S54, the target vehicle receives the confirmation information returned by the target key in response to the second detection signal.
The confirmation information returned by the target key in response to the second detection signal at least comprises: and measuring the intensity of the second detection signal to obtain a signal intensity value.
Step S55, the target vehicle determines the distance between the target key and the target vehicle according to the received signal strength values.
Step S56, the target vehicle determines a trend of change in the distance between the target key and the target vehicle according to the respective distances between the target key and the target vehicle.
And step S57, if the variation trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation.
Steps S51-S27 are the same as steps S11-S17 in the previous embodiment, and the detailed procedures of steps S51-S57 can be referred to the related descriptions of steps S11-S17, and are not described herein again.
And step S58, if the trend of the distance between the target key and the target vehicle is from small to large, the target vehicle judges whether the target key exists in a second set interval.
If not, step S59 is executed.
The second setting interval can be flexibly set according to actual needs.
At step S59, the target vehicle performs a locking operation.
On the basis that the variation trend of the distance between the target key and the target vehicle is from small to large, whether the target key exists in the second set interval or not is further judged, and the accuracy of the locking operation can be further improved.
The detailed process of step S59 can be referred to the related description of the locking operation performed by the target vehicle in step S18 in the foregoing embodiment, and will not be described herein again.
In another embodiment of the present application, another method for locking and unlocking a vehicle is described, and referring to fig. 6, the method may include:
step S61, the target vehicle transmits a first probe signal according to a first set frequency.
And step S62, the target vehicle judges whether the confirmation information returned by the target key in response to the first detection signal is received.
If yes, go to step S63.
And S63, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency.
And S64, the target vehicle receives the confirmation information returned by the target key in response to the second detection signal.
The confirmation information returned by the target key in response to the second detection signal at least comprises: and measuring the intensity of the second detection signal to obtain a signal intensity value.
Step S65, the target vehicle determines the distance between the target key and the target vehicle according to the received signal strength values.
Step S66, the target vehicle determines a trend of change in the distance between the target key and the target vehicle according to the respective distances between the target key and the target vehicle.
And step S67, if the variation trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation.
And step S68, if the trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation.
Steps S61-S68 are the same as steps S11-S18 in the previous embodiment, and the detailed procedures of steps S61-S68 can be referred to the related descriptions of steps S11-S18, and are not described herein again.
And step S69, if the trend of the distance between the target key and the target vehicle is not from small to large, the target vehicle judges whether the target key exists in a second set interval.
Not from small to large, it can be understood that: the size of the sample is not always from small to large, for example, from small to large, and then from large to small. After the user moves from small to large, the user moves along the track from large to small: and after the user is far away from the target vehicle for a certain distance, the user returns to be close to the target vehicle.
If not, go to step S610.
The second setting interval can be flexibly set according to actual needs.
And step S610, the target vehicle executes locking operation.
On the basis that the variation trend of the distance between the target key and the target vehicle is not from small to large, whether the target key exists in the second set interval or not is further judged, and the accuracy of the locking operation can be further improved.
Next, a locking and unlocking system for a vehicle according to the present application will be described, and the locking and unlocking system for a vehicle described below and the locking and unlocking method for a vehicle described above may be referred to in correspondence with each other.
Referring to fig. 7, the locking and unlocking system of the vehicle includes: the device comprises a first transmitting module 11, a first judging module 12, a second transmitting module 13, a first receiving module 14, a first determining module 15, a second determining module 16, a first executing module 17 and a second executing module 18.
The first transmitting module 11 is configured to transmit a first probe signal according to a first set frequency.
And the first judging module 12 is configured to judge whether an acknowledgement message returned by the target key in response to the first detection signal is received, and if so, execute the second transmitting module 13.
The second transmitting module 13 is configured to transmit a second probe signal according to a second set frequency, where the second set frequency is higher than the first set frequency.
A first receiving module 14, configured to receive the acknowledgement returned by the target key in response to the second probe signal, where the acknowledgement returned by the target key in response to the second probe signal at least includes: and measuring the intensity of the second detection signal to obtain a signal intensity value.
And the first determining module 15 is configured to determine distances between the target key and the target vehicle according to the received signal strength values, respectively.
The second determination module 16 is configured to determine a trend of a change in the distance between the target key and the target vehicle according to each distance between the target key and the target vehicle.
The first executing module 17 is configured to execute an unlocking operation by the target vehicle if a variation trend of a distance between the target key and the target vehicle is from large to small.
And the second execution module 18 is configured to execute the locking operation on the target vehicle if the trend of the distance between the target key and the target vehicle is from small to large.
In this embodiment, the locking and unlocking system for a vehicle may further include:
and the second judgment module is used for judging whether the target key is in the first set interval, and if so, executing the third judgment module.
And the third judgment module is used for judging whether the target vehicle is in a locked state or not, and if so, executing unlocking operation.
In this embodiment, the locking and unlocking system for a vehicle may further include:
and the fourth judging module is used for judging whether the duration time for transmitting the second detection signal according to the second set frequency exceeds a set threshold value, and if so, the stopping module is executed.
And the stopping module is used for stopping transmitting the second detection signal according to the second set frequency and returning to execute the step of transmitting the first detection signal according to the first set frequency.
In this embodiment, the locking and unlocking system for a vehicle may further include:
and the fifth judging module is used for judging whether the target key exists in a second set interval before the target vehicle performs the locking operation, and if not, performing the locking operation.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
The above detailed description is provided for a method and a system for locking and unlocking a vehicle, and a specific example is applied in the detailed description to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. A method for locking and unlocking a vehicle, comprising:
the target vehicle transmits a first detection signal according to a first set frequency;
the target vehicle judges whether confirmation information returned by a target key responding to the first detection signal is received;
if so, the target vehicle transmits a second detection signal according to a second set frequency, wherein the second set frequency is higher than the first set frequency;
the target vehicle receives the confirmation information returned by the target key in response to the second detection signal, and the confirmation information returned by the target key in response to the second detection signal at least comprises: measuring the intensity of the second detection signal to obtain a signal intensity value;
the target vehicle respectively determines the distance between the target key and the target vehicle according to the received signal intensity values;
the target vehicle determines the variation trend of the distance between the target key and the target vehicle according to the distances between the target key and the target vehicle;
if the change trend of the distance between the target key and the target vehicle is from large to small, the target vehicle executes unlocking operation;
and if the change trend of the distance between the target key and the target vehicle is from small to large, the target vehicle executes locking operation.
2. The method of claim 1, wherein prior to the target vehicle performing the unlocking operation, further comprising:
the target vehicle judges whether the target key is in a first set interval;
if so, the target vehicle judges whether the target vehicle is in a locked state;
and if so, the target vehicle executes unlocking operation.
3. The method of claim 1, further comprising:
judging whether the duration of transmitting a second detection signal according to the second set frequency exceeds a set threshold value;
and if so, stopping transmitting the second detection signal according to the second set frequency, and returning to execute the step of transmitting the first detection signal according to the first set frequency.
4. The method of claim 1, wherein prior to the target vehicle performing the locking operation, further comprising:
the target vehicle judges whether the target key exists in a second set interval or not;
if not, the target vehicle executes locking operation.
5. A locking and unlocking system for a vehicle, comprising:
the first transmitting module is used for transmitting a first detection signal according to a first set frequency;
the first judgment module is used for judging whether confirmation information returned by the target key responding to the first detection signal is received or not, and if yes, the second transmission module is executed;
the second transmitting module is configured to transmit a second probe signal according to a second set frequency, where the second set frequency is higher than the first set frequency;
a first receiving module, configured to receive acknowledgement information returned by the target key in response to the second probe signal, where the acknowledgement information returned by the target key in response to the second probe signal at least includes: measuring the intensity of the second detection signal to obtain a signal intensity value;
the first determining module is used for respectively determining the distance between the target key and the target vehicle according to the received signal strength values;
the second determination module is used for determining the variation trend of the distance between the target key and the target vehicle according to the distances between the target key and the target vehicle;
the first execution module is used for executing unlocking operation by the target vehicle if the variation trend of the distance between the target key and the target vehicle is from large to small;
and the second execution module is used for executing locking operation on the target vehicle if the trend of the distance between the target key and the target vehicle is from small to large.
6. The system of claim 5, further comprising:
the second judgment module is used for judging whether the target key is in a first set interval or not, and if so, the third judgment module is executed;
and the third judgment module is used for judging whether the target vehicle is in a locked state or not, and if so, executing unlocking operation.
7. The system of claim 5, further comprising:
a fourth judging module, configured to judge whether a duration of transmitting a second detection signal according to the second set frequency exceeds a set threshold, and if so, execute the stopping module;
and the stopping module is used for stopping transmitting the second detection signal according to the second set frequency and returning to execute the step of transmitting the first detection signal according to the first set frequency.
8. The system of claim 5, further comprising:
and the fifth judging module is used for judging whether the target key exists in a second set interval before the target vehicle performs the locking operation, and if not, performing the locking operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910457306.2A CN112009421A (en) | 2019-05-29 | 2019-05-29 | Locking and unlocking method and system for vehicle |
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| CN201910457306.2A CN112009421A (en) | 2019-05-29 | 2019-05-29 | Locking and unlocking method and system for vehicle |
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