Method, device and vehicle for controlling automatic locking of a vehicle

Abstract

The application provides a method, device and vehicle for controlling automatic locking of a vehicle. When a key search function is activated, a plurality of low-frequency antennas are controlled to cyclically send first authentication information in a preset order. In this way, the signal sent by the vehicle body controller and the signal received by the key controller are unbound, which can greatly reduce the waiting time when each low-frequency antenna sends a signal. Then, based on the received first feedback information, a target low-frequency antenna is determined, and then the target low-frequency antenna is controlled to send second authentication information and all low-frequency antennas are controlled to send field strength carriers. In this way, after the target low-frequency antenna is determined, only the target low-frequency antenna needs to send the second authentication information to determine that the second feedback information is the information of the corresponding key controller, and the remaining antennas do not need to send the second authentication information in turn, but only need to send the field strength carriers to determine the specific position of the key. In this way, the time for searching for the key can be shortened, and the vehicle can be timely and accurately controlled to automatically lock.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a method and device for controlling automatic locking of a vehicle and the vehicle. BACKGROUND

[0002] With the development of the automotive industry, keyless entry and keyless start are increasingly common on vehicles. A keyless entry and keyless start system detects a key based on signals sent by four or six low-frequency antennas arranged on a vehicle, and then implements keyless start and off-vehicle locking functions.

[0003] However, the prerequisite for implementing the off-vehicle locking function is to detect a change in the key before locking. However, the existing detection time period for the key is too long, and the detection accuracy is not high enough, so that the key is often not detected, resulting in failure of the off-vehicle locking function. SUMMARY

[0004] Therefore, the present application aims to provide a method and device for controlling automatic locking of a vehicle and the vehicle.

[0005] To achieve the above object, the present application provides, in a first aspect, a method for controlling automatic locking of a vehicle. The method is based on a keyless entry and start system, which includes multiple low-frequency antennas. The method comprises the following steps:

[0006] In response to the key search function being awakened, the multiple low-frequency antennas are controlled to cyclically send first authentication information in a preset order;

[0007] In response to receiving first feedback information, a target low-frequency antenna is determined based on the first feedback information;

[0008] The target low-frequency antenna is controlled to send second authentication information, and all low-frequency antennas are controlled to send field strength carriers;

[0009] In response to receiving second feedback information, the vehicle is automatically locked based on the second feedback information.

[0010] Optionally, the multiple low-frequency antennas include a first low-frequency antenna arranged in the vehicle, a second low-frequency antenna and a third low-frequency antenna arranged on both sides of the vehicle body, and a fourth low-frequency antenna arranged at the rear of the vehicle;

[0011] The multiple low-frequency antennas are controlled to cyclically send first authentication information in a preset order, which comprises the following steps:

[0012] The first authentication information is controlled to be sent in the order of the second low-frequency antenna, the third low-frequency antenna, the first low-frequency antenna, and the fourth low-frequency antenna;

[0013] or controlling the second low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time, and then controlling the third low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time;

[0014] or controlling the second low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time, and then controlling the first low-frequency antenna and the third low-frequency antenna to send the first authentication information at the same time;

[0015] or controlling the third low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time, and then controlling the second low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time;

[0016] or controlling the third low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time, and then controlling the second low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time.

[0017] Optionally, the determining the target low-frequency antenna based on the first feedback information comprises:

[0018] in response to receiving one first feedback information, decrypting the first feedback information to obtain decrypted first information;

[0019] determining antenna label information based on the decrypted first information, the antenna label information corresponding to one of the low-frequency antennas;

[0020] determining the low-frequency antenna corresponding to the antenna label information as the target low-frequency antenna.

[0021] Optionally, the determining the target low-frequency antenna based on the first feedback information comprises:

[0022] in response to receiving two first feedback information at the same time, respectively decrypting the two first feedback information to obtain two decrypted first information;

[0023] determining two antenna label information based on the two decrypted first information, each of the antenna label information corresponding to one of the low-frequency antennas;

[0024] determining two low-frequency antennas corresponding to the two antenna label information as two initial target low-frequency antennas;

[0025] determining the target low-frequency antenna based on the two initial target low-frequency antennas.

[0026] Optionally, the determining the target low-frequency antenna based on the two initial target low-frequency antennas comprises:

[0027] controlling the two initial target low-frequency antennas to send initial field strength carriers at the same time;

[0028] In response to receiving an initial feedback information, determining antenna index information based on the initial feedback information, determining a low-frequency antenna corresponding to the antenna index information as a target low-frequency antenna;

[0029] In response to receiving two initial feedback information, determining two initial field strength values based on the two initial feedback information respectively, each of the initial field strength values corresponding to a low-frequency antenna;

[0030] Comparing the two initial field strength values, and determining a low-frequency antenna corresponding to a larger initial field strength value as a target low-frequency antenna.

[0031] Optionally, the controlling the vehicle to automatically lock based on the second feedback information comprises:

[0032] In response to the second feedback information being valid, determining a vehicle key position based on the second feedback information;

[0033] In response to the vehicle key position being located outside a preset area, controlling the vehicle to automatically lock.

[0034] Optionally, the controlling the vehicle to automatically lock based on the second feedback information further comprises:

[0035] In response to the vehicle key position being located within the preset area, cyclically executing a key searching strategy until the determined vehicle key position is located outside the preset area, or the number of times of cyclic execution reaches a preset number of times and no second feedback information is received or the received second feedback information is invalid, and then controlling the vehicle to automatically lock;

[0036] The key searching strategy comprises:

[0037] Controlling the target low-frequency antenna to send second authentication information and controlling all low-frequency antennas to send field strength carriers;

[0038] In response to receiving second feedback information and the second feedback information being valid, determining a vehicle key position based on the second feedback information.

[0039] Optionally, the determining the vehicle key position based on the second feedback information comprises:

[0040] Decrypting the second feedback information to obtain decrypted second information;

[0041] Determining a plurality of field strength values based on the decrypted second information, the plurality of field strength values corresponding to the plurality of field strength carriers one by one;

[0042] Determining a vehicle key position based on the plurality of field strength values and a preset field strength rule.

[0043] The second aspect of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method of any one of the first aspect.

[0044] The third aspect of the present application provides a vehicle comprising the electronic device of the third aspect.

[0045] As can be seen from the above, the method, device and vehicle provided by the present application can control multiple low-frequency antennas to send first authentication information in a preset order when the key search function is woken up, that is, the second low-frequency antenna can send a signal after the first low-frequency antenna sends a signal, without waiting for the feedback of the key controller to the first low-frequency antenna, so as to decouple the signal sent by the vehicle body controller and the signal received by the key controller, greatly reducing the waiting time of each low-frequency antenna when sending a signal, and further greatly shortening the time for each antenna to search for a key, speeding up the key search frequency, quickly and accurately detecting the key and the change of the key position, and further timely and accurately controlling the vehicle to automatically lock; then determining a target low-frequency antenna based on the received first feedback information, and then controlling the target low-frequency antenna to send second authentication information and controlling all low-frequency antennas to send field strength carriers, so that after the target low-frequency antenna is determined, only the target low-frequency antenna needs to send the second authentication information to determine that the second feedback information is the information of the corresponding key controller, and the remaining antennas do not need to send the second authentication information in turn, but only need to send the field strength carriers for determining the specific position of the key, so that the time for searching for the key can be shortened, the accuracy and sensitivity of searching for the key can be improved, and the vehicle can be timely and accurately controlled to automatically lock. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the present application or related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art descriptions. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0047] Figure 1 A schematic diagram of arranging four low-frequency antennas on an existing vehicle;

[0048] Figure 2 A schematic diagram of an existing key search strategy;

[0049] Figure 3 A schematic diagram of the feedback principle of the vehicle body controller and the key controller in the existing key search strategy;

[0050] Figure 4A flowchart of a method for controlling automatic locking of a vehicle according to an embodiment of the present application;

[0051] Figure 5 A feedback principle diagram of a vehicle body controller and a key controller according to an embodiment of the present application;

[0052] Figure 6 A diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0054] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the embodiments of the present application should be understood as their common meanings to those skilled in the art to which the present application pertains. The terms "first", "second", and similar terms used in the embodiments of the present application do not denote any order, quantity, or importance, but are merely used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" and "connected" and similar terms do not mean only physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are merely used to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0055] The keyless entry and start system (PEPS) includes an antenna system, Figure 1 is an exemplary structural diagram of an antenna system of a PEPS system. As Figure 1 shown, the antenna system includes: a first low-frequency antenna 110 arranged at a middle position inside the vehicle; a second low-frequency antenna 120 and a third low-frequency antenna 130 arranged at the driver side and the front passenger side outside the vehicle, respectively; and a fourth low-frequency antenna 140 arranged at a trunk position inside the vehicle.

[0056] The first low-frequency antenna 110, the second low-frequency antenna 120, the third low-frequency antenna 130, and the fourth low-frequency antenna 140 are configured to be able to generate field strength carriers for searching for a key; the relative positions between the first low-frequency antenna 110, the second low-frequency antenna 120, the third low-frequency antenna 130, and the fourth low-frequency antenna 140 are configured to be able to enable the antenna system to generate field strength carriers capable of covering the entire interior of the vehicle; and the fourth low-frequency antenna 140 is configured to be able to generate field strength carriers covering an external area of the trunk of the vehicle.

[0057] In the related art, the body controller detects the key by controlling the four low-frequency antennas to send signals, thereby realizing the keyless start and off-vehicle locking functions. For example, as shown in FIGS. 1 to 3, after the key search function is awakened, the body controller controls the low-frequency antennas to sequentially execute the key search strategy in the order of the second low-frequency antenna 120, the third low-frequency antenna 130, the first low-frequency antenna 110, and the fourth low-frequency antenna 140. The key search strategy is that one of the low-frequency antennas sends low-frequency data, and then all the low-frequency antennas sequentially send field strength carriers. After the key controller receives the low-frequency data sent by the second low-frequency antenna 120 and the field strength carriers sent by the four low-frequency antennas, the key controller returns high-frequency data based on the low-frequency data and the field strength carriers. After the body controller receives the high-frequency data, the body controller decrypts the high-frequency data, and then calculates the key position based on the high-frequency data. If the calculated key position is in the unlocking area, it indicates that the key search strategy is correct at this time, and the key position is marked as the starting position. Then, the third low-frequency antenna 130, the first low-frequency antenna 110, and the fourth low-frequency antenna 140 are controlled to sequentially execute the key search strategy, and the above steps are repeated until the finally determined key position is in the locking area, and the vehicle can be controlled to lock. Figure 2 Figure 3

[0058] However, the above-described key search process is only in an ideal state. In actual use, due to spatial electromagnetic interference, the limitation of low-frequency communication distance, and the influence of the key search strategy, the key cannot be detected and the key position cannot be determined in actual use.

[0059] This is because, in the first aspect, the signal sent by the body controller and the feedback signal of the key controller are integrated in the above-described key search process, that is, after a low-frequency antenna executes the sequential key search strategy, the next low-frequency antenna cannot execute the key search strategy until the high-frequency data fed back by the key controller is received, which results in a very long time for executing the key search strategy once.

[0060] For example, executing the key search strategy once includes that one low-frequency antenna sends low-frequency data, and all the four low-frequency antennas sequentially send field strength carriers. This process takes about 60 ms, and then waiting for the feedback of the key controller takes about 140 ms, that is, executing the key search strategy once takes at least 200 ms. If the key search strategy is sequentially executed in the order of the second low-frequency antenna 120, the third low-frequency antenna 130, the first low-frequency antenna 110, and the fourth low-frequency antenna 140, the time for one cycle of polling of the four low-frequency antennas is about 800 ms. Thus, the time period for one cycle of polling of the four antennas is too long, which results in that the change of the key position cannot be sensitively detected, the detection accuracy is not high, and the key cannot be detected.​​

[0061] In the second aspect, when the existing low-frequency antenna using PEPS searches for the key, the polling order is fixed as the order of the second low-frequency antenna 120, the third low-frequency antenna 130, the first low-frequency antenna 110, and the fourth low-frequency antenna 140, that is, each time the polling starts with the second low-frequency antenna 120, that is, the driver side antenna. This fixed order reduces the sensitivity of the key search.

[0062] However, the prerequisite for the implementation of the off-car locking function is to detect the change of the key to lock, for example, to detect that the key enters the locking area from the unlocking area, or to start detecting the key and not to detect the key after a period of time, so as to execute the automatic locking function of the vehicle. If the detection period is too long, the detection frequency is too low or the detection sensitivity is not enough, it is easy to appear that the key cannot be detected or the change of the position of the key cannot be detected, which will cause the off-car locking function to fail.

[0063] Therefore, how to shorten the time of each round of key search, speed up the frequency of key search, and improve the sensitivity of key search, so as to quickly and accurately detect the key and the change of the position of the key, and then timely and accurately control the automatic locking of the vehicle is an urgent problem to be solved.

[0064] Based on this, referring to Figure 4 The present application provides a method for controlling the automatic locking of a vehicle, which is executed based on a keyless entry and start system, and the keyless entry and start system comprises a plurality of low-frequency antennas. The plurality of low-frequency antennas can comprise a first low-frequency antenna arranged in the vehicle, a second low-frequency antenna and a third low-frequency antenna arranged on the two sides of the vehicle body respectively, and a fourth low-frequency antenna arranged at the tail of the vehicle.

[0065] The method is executed by a vehicle body controller, and the method specifically comprises:

[0066] Step S100, in response to the key search function being awakened, controlling the plurality of low-frequency antennas to send first authentication information in a preset order;

[0067] Step S200, in response to receiving the first feedback information, determining the target low-frequency antenna based on the first feedback information;

[0068] Step S300, controlling the target low-frequency antenna to send second authentication information and controlling all low-frequency antennas to send field strength carriers;

[0069] Step S400, in response to receiving the second feedback information, controlling the automatic locking of the vehicle based on the second feedback information.

[0070] Specifically, the low-frequency antenna is an antenna with a specific function on the vehicle. The antenna of the vehicle includes a low-frequency antenna and a high-frequency antenna, each of which plays a different role. Among them, the low-frequency antenna induces a voltage by receiving a change in an electromagnetic field, and receives and transmits signals by transmitting a current to generate an electromagnetic field, and the signals received and transmitted by the low-frequency antenna are mainly amplitude modulation signals (AM signals). The high-frequency antenna generates a weak induced current by sensing a change in an electromagnetic field, and receives and transmits signals by transmitting a current to generate a strong electromagnetic field, and the signals received and transmitted by the high-frequency antenna are mainly frequency modulation band signals (referred to as "FM signals") or Global Positioning System signals (GPS signals).

[0071] The real-time monitoring of the vehicle door state change and the acquisition of the in-vehicle image, when the in-vehicle image shows that there is no user in the vehicle and the vehicle door state is closed, the key search function is awakened. At this time, the vehicle body controller controls the plurality of low-frequency antennas to send the first authentication information in a preset order. The first authentication information can be the low-frequency data described above.

[0072] Due to the limitation of the low-frequency communication distance, only when the key controller is within a preset distance from the low-frequency antenna, the key controller can receive the first authentication information sent by the low-frequency antenna. When the key controller is outside the preset distance from the low-frequency antenna, the key controller cannot receive the first authentication information sent by the low-frequency antenna.

[0073] Therefore, the plurality of low-frequency antennas are controlled to send the first authentication information in a preset order until the key controller receives the first authentication information sent by at least one low-frequency antenna, generates corresponding first feedback information and sends it to the vehicle body controller, and the vehicle body controller receives the first feedback information to determine that the key is around the vehicle.

[0074] In this application, when the key search function is awakened, the plurality of low-frequency antennas are directly controlled to send the first authentication information in a preset order, without the need to control all low-frequency antennas to send field strength carriers, which can reduce the time for the vehicle body controller to send information to the key controller and reduce the time for searching the key.

[0075] At the same time, the plurality of low-frequency antennas are controlled to send the first authentication information in a preset order, that is, the plurality of low-frequency antennas can send the first authentication information in a preset order (see Figure 5), the second low-frequency antenna can send signals according to the rule without waiting for the feedback of the key controller to the first low-frequency antenna. In this way, the sending of the vehicle body controller and the receiving of the key controller are decoupled, which can greatly reduce the waiting time of each low-frequency antenna when sending signals, and further shorten the time for each antenna to find the key, speed up the frequency of finding the key, quickly and accurately detect the key and the change of the key position, and timely and accurately control the automatic locking of the vehicle.

[0076] The preset sequence is a preset sequence of sending the first authentication information.

[0077] Although the vehicle body controller receives the first feedback information, it can determine that the key is around the vehicle, but since the vehicle body controller does not send the field strength carrier, the corresponding field strength value (a necessary value for calculating the specific position of the key) is not in the first feedback information of the key controller. Therefore, the specific position of the key cannot be determined based on the first feedback information, and the specific position of the key needs to be further determined to determine whether the position of the key changes and whether the vehicle can be automatically locked.

[0078] Therefore, the target low-frequency antenna is determined based on the received first feedback information, and the target low-frequency antenna is one of the multiple low-frequency antennas and is the low-frequency antenna closest to the key controller.

[0079] Then, the target low-frequency antenna is controlled to send the second authentication information and all low-frequency antennas are controlled to send the field strength carrier. In this way, the target low-frequency antenna closest to the key controller is determined as the main antenna, the main antenna is controlled to send the second authentication information, and all low-frequency antennas are controlled to send the field strength carrier. In this way, when the specific position of the key is determined, the second authentication information is no longer sent according to the conventional main driver side antenna - vice driver side antenna - front passenger side antenna - rear passenger side antenna, but the target low-frequency antenna closest to the key controller is used as the main antenna to send the second authentication information, and other low-frequency antennas send the field strength carrier. In this way, the second authentication information can be used to verify that the feedback key controller is the key controller corresponding to the vehicle, and all low-frequency antennas can be used to calculate the specific position of the key, which not only shortens the time for finding the key, but also improves the accuracy and sensitivity of finding the key. The accuracy and timeliness of the feedback information of the key controller can be improved, and the key and the change of the key position can be quickly and accurately detected, and the vehicle can be timely and accurately controlled to automatically lock.

[0080] In the process of controlling the target low-frequency antenna to send the second authentication information and controlling all low-frequency antennas to send the field intensity carrier, when the key controller receives the second authentication information and the field intensity carrier, the second feedback information is generated and sent to the vehicle body controller, the vehicle body controller determines the specific position of the key based on the received second feedback information, and controls the vehicle to automatically lock based on the determined specific position of the key.

[0081] In the present application, when the key finding function is awakened, the multiple low-frequency antennas are controlled to send the first authentication information in a preset order, that is, the second low-frequency antenna can send the signal after the first low-frequency antenna sends the signal, without waiting for the feedback of the key controller to the first low-frequency antenna. In this way, the signal sending of the vehicle body controller and the signal receiving of the key controller are decoupled, which can greatly reduce the waiting time of each low-frequency antenna when sending the signal, thereby greatly shortening the time for each antenna to find the key, speeding up the key finding frequency, quickly and accurately detecting the key and the change of the key position, and accurately controlling the vehicle to automatically lock in time. Then, the target low-frequency antenna is determined based on the received first feedback information, and the target low-frequency antenna is controlled to send the second authentication information and all low-frequency antennas are controlled to send the field intensity carrier. In this way, after the target low-frequency antenna is determined, only the target low-frequency antenna needs to send the second authentication information to determine that the second feedback information is the information corresponding to the key controller, and the remaining antennas do not need to send the second authentication information in turn, but only need to send the field intensity carrier to determine the specific position of the key. In this way, the time for finding the key can be shortened, the accuracy and sensitivity of finding the key can be improved, and the vehicle can be accurately controlled to automatically lock in time.

[0082] In some embodiments, the control of the multiple low-frequency antennas to send the first authentication information in a preset order includes:

[0083] controlling the first authentication information to be sent in the order of the second low-frequency antenna, the third low-frequency antenna, the first low-frequency antenna, and the fourth low-frequency antenna;

[0084] or controlling the second low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time, and then controlling the third low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time;

[0085] or controlling the second low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time, and then controlling the first low-frequency antenna and the third low-frequency antenna to send the first authentication information at the same time;

[0086] or controlling the third low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time, and then controlling the second low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time;

[0087] Or first control the third low frequency antenna and the fourth low frequency antenna to send the first authentication information at the same time, and then control the second low frequency antenna and the first low frequency antenna to send the first authentication information at the same time.

[0088] Specifically, the off-vehicle locking function needs to be executed only after the person in the vehicle leaves the vehicle and closes the door, and there are two possible situations when the person in the vehicle leaves the vehicle: the first is that the person leaves the vehicle from the main driver side, and after leaving the vehicle, he / she may pass near the vehicle head and then move away from the vehicle, or he / she may pass near the vehicle tail and then move away from the vehicle; the second is that the person leaves the vehicle from the co-driver side, and after leaving the vehicle, he / she may pass near the vehicle head and then move away from the vehicle, or he / she may pass near the vehicle tail and then move away from the vehicle.

[0089] Therefore, when controlling multiple low-frequency antennas to send the first authentication information in a preset order, there are four ways:

[0090] The first way is to send the first authentication information in the order of the second low-frequency antenna, the third low-frequency antenna, the first low-frequency antenna, and the fourth low-frequency antenna. In this way, the four low-frequency antennas send the first authentication information in turn without waiting for the reply of the key controller before sending the next low-frequency antenna. During the process of sending the first authentication information in turn by the four low-frequency antennas, if the key controller receives a certain authentication information, the first feedback information will be generated and sent to the vehicle body controller, and the vehicle body controller can determine the key around the vehicle after receiving the first feedback information. At this time, the other low-frequency antennas do not need to continue to send the first authentication information.

[0091] With this way, since the four low-frequency antennas send the first authentication information in turn, the remaining low-frequency antennas do not need to continue to send the first authentication information after receiving the first feedback information, so that the power consumption of the vehicle can be reduced.

[0092] The second way is to control the second low-frequency antenna (i.e. the main driver side antenna) and the first low-frequency antenna (i.e. the vehicle head side antenna) to send the first authentication information at the same time, and then control the third low-frequency antenna (i.e. the co-driver side antenna) and the fourth low-frequency antenna (the vehicle tail side antenna) to send the first authentication information at the same time. This way corresponds to the person in the vehicle leaving the vehicle from the main driver side, and after leaving the vehicle, he / she passes near the vehicle head and then moves away from the vehicle. This way of controlling low-frequency antennas makes it very likely that the key controller directly receives the first authentication information when controlling the second low-frequency antenna (i.e. the main driver side antenna) and the first low-frequency antenna (i.e. the vehicle head side antenna) to send the first authentication information at the same time, and then returns the first feedback information, so that it is not necessary to control the third low-frequency antenna (i.e. the co-driver side antenna) and the fourth low-frequency antenna (the vehicle tail side antenna) to send the first authentication information. In this way, the time for finding the key can be further shortened and the sensitivity and accuracy of finding the key can be improved according to the actual situation.

[0093] The third mode is to control the second low-frequency antenna and the fourth low-frequency antenna to simultaneously send the first authentication information, and then control the first low-frequency antenna and the third low-frequency antenna to simultaneously send the first authentication information. This mode corresponds to a situation in which the person inside the vehicle leaves the vehicle from the side of the main driver, passes near the tail of the vehicle after leaving the vehicle, and then moves away from the vehicle. This way of controlling the low-frequency antenna makes it very likely that the key controller directly receives the first authentication information when the second low-frequency antenna and the fourth low-frequency antenna are controlled to simultaneously send the first authentication information in the first step, and then returns the first feedback information. Therefore, there is no need to control the third low-frequency antenna and the first low-frequency antenna to send the first authentication information. In this way, the time for finding the key can be further shortened, and the sensitivity and accuracy of finding the key can be improved.

[0094] The fourth mode is to control the third low-frequency antenna and the first low-frequency antenna to simultaneously send the first authentication information, and then control the second low-frequency antenna and the fourth low-frequency antenna to simultaneously send the first authentication information. This mode corresponds to a situation in which the person inside the vehicle leaves the vehicle from the side of the co-driver, passes near the head of the vehicle after leaving the vehicle, and then moves away from the vehicle. This way of controlling the low-frequency antenna makes it very likely that the key controller directly receives the first authentication information when the third low-frequency antenna and the first low-frequency antenna are controlled to simultaneously send the first authentication information in the first step, and then returns the first feedback information. Therefore, there is no need to control the second low-frequency antenna and the fourth low-frequency antenna to send the first authentication information. In this way, the time for finding the key can be further shortened, and the sensitivity and accuracy of finding the key can be improved.

[0095] The fifth mode is to control the third low-frequency antenna and the fourth low-frequency antenna to simultaneously send the first authentication information, and then control the second low-frequency antenna and the first low-frequency antenna to simultaneously send the first authentication information. This mode corresponds to a situation in which the person inside the vehicle leaves the vehicle from the side of the co-driver, passes near the tail of the vehicle after leaving the vehicle, and then moves away from the vehicle. This way of controlling the low-frequency antenna makes it very likely that the key controller directly receives the first authentication information when the third low-frequency antenna and the fourth low-frequency antenna are controlled to simultaneously send the first authentication information in the first step, and then returns the first feedback information. Therefore, there is no need to control the second low-frequency antenna and the first low-frequency antenna to send the first authentication information. In this way, the time for finding the key can be further shortened, and the sensitivity and accuracy of finding the key can be improved.

[0096] In a specific implementation, which mode to select can be determined in combination with the in-vehicle image and the vehicle door state change information. Specifically, when the in-vehicle image shows that the last person inside the vehicle is opening a door at a certain time, and the door state change information shows that the state of the door changes from opening to closing, at this time, the low-frequency antenna corresponding to the door is preferentially controlled to send the first authentication information. The in-vehicle image can also be used to determine whether the person is near the head of the vehicle or near the tail of the vehicle, and then the determined low-frequency antenna at the head or tail of the vehicle is controlled together with the previous low-frequency antenna to simultaneously send the first authentication information.

[0097] Exemplarily, when the in-vehicle image shows that the last person in the vehicle is opening the co-driver door at a certain moment, and the co-driver door state change information shows that the state of the door changes from opening to closing, and then the in-vehicle image is combined with the out-vehicle image to determine that the person is near the front of the vehicle, the first authentication information can be simultaneously sent by the low-frequency antenna on the front side of the vehicle, i.e., the first low-frequency antenna, and the low-frequency antenna on the co-driver side, i.e., the third low-frequency antenna.

[0098] In the present application, different control modes are set to control the multiple low-frequency antennas to send the first authentication information in a preset order. These control modes cover all possible situations when the in-vehicle person leaves the vehicle, which can greatly improve the probability of the key controller receiving the first authentication information, and further greatly improve the possibility of finding the key, so that the vehicle body controller can timely and accurately control the vehicle to automatically lock. At the same time, the number of low-frequency antennas sending the first authentication information can be reduced, and the power consumption can be reduced.

[0099] In some embodiments, the target low-frequency antenna is determined based on the first feedback information, including:

[0100] In response to receiving a first feedback information, the first feedback information is decrypted to obtain decrypted first information;

[0101] The antenna number information corresponding to the decrypted first information is determined based on the decrypted first information, and the antenna number information corresponds to a low-frequency antenna;

[0102] The low-frequency antenna corresponding to the antenna number information is determined as the target low-frequency antenna.

[0103] Specifically, when the first authentication information is sent in the order of the second low-frequency antenna, the third low-frequency antenna, the first low-frequency antenna, and the fourth low-frequency antenna, the key controller returns the first feedback information in sequence because each low-frequency antenna sends the first authentication information in sequence. Therefore, the vehicle body controller can only receive one first feedback information at the same time.

[0104] When the vehicle body controller receives a first feedback information, the first feedback information is decrypted to obtain decrypted first information. The antenna number information of the low-frequency antenna sending the first authentication information is included in the decrypted first information, and the low-frequency antenna corresponding to the antenna number information is determined as the target low-frequency antenna. When the vehicle body controller receives the first feedback information, it indicates that the key controller is near the low-frequency antenna corresponding to the first feedback information. Therefore, the target low-frequency antenna is determined based on the first feedback information, which can determine that the key controller is near the target low-frequency antenna.

[0105] In the application, when a first feedback information is received, a target low-frequency antenna close to the key controller can be determined based on the first feedback information, and then each low-frequency antenna can be accurately controlled to send different signals in the subsequent process, so as to calculate the specific position of the key and improve the accuracy and sensitivity of finding the key.

[0106] In some embodiments, the determining the target low-frequency antenna based on the first feedback information comprises:

[0107] In response to receiving two first feedback information at the same time, the two first feedback information are decrypted respectively to obtain two decrypted first information.

[0108] Based on the two decrypted first information, two antenna label information are determined respectively, each of the antenna label information corresponding to one of the low-frequency antennas.

[0109] The two low-frequency antennas corresponding to the two antenna label information are determined as two initial target low-frequency antennas.

[0110] The target low-frequency antenna is determined based on the two initial target low-frequency antennas.

[0111] Specifically, when the two low-frequency antennas are controlled to send the first authentication information at the same time, if the key controller is near the two low-frequency antennas, the key controller can receive the first authentication information sent by the two low-frequency antennas at the same time, and then return two first feedback information at the same time. Therefore, the vehicle body controller can receive the two first feedback information at the same time.

[0112] When the vehicle body controller receives the two first feedback information at the same time, the two first feedback information are decrypted respectively to obtain two decrypted first information, and then based on the two decrypted first information, two antenna label information are determined respectively. The two low-frequency antennas corresponding to the two antenna label information are determined as two initial target low-frequency antennas.

[0113] Finally, based on the two initial target low-frequency antennas, a low-frequency antenna closer to the key controller is determined as the target low-frequency antenna.

[0114] In the application, when the two first feedback information are received at the same time, a target low-frequency antenna close to the key controller can be determined based on the two first feedback information, and then each low-frequency antenna can be accurately controlled to send different signals in the subsequent process, so as to calculate the specific position of the key and improve the accuracy and sensitivity of finding the key.

[0115] In some embodiments, the determining the target low-frequency antenna based on the two initial target low-frequency antennas comprises:

[0116] controlling two initial target low-frequency antennas to simultaneously send initial field intensity carriers;

[0117] in response to receiving an initial feedback information, determining antenna index information based on the initial feedback information, and determining a low-frequency antenna corresponding to the antenna index information as a target low-frequency antenna;

[0118] in response to receiving two initial feedback information, determining two initial field intensity values based on the two initial feedback information respectively, each of the initial field intensity values corresponding to a low-frequency antenna, and comparing the two initial field intensity values to determine a low-frequency antenna corresponding to a larger initial field intensity value as a target low-frequency antenna.

[0119] Specifically, when determining a target low-frequency antenna based on two initial target low-frequency antennas, it is necessary to determine which of the two target low-frequency antennas is closer to the key controller, and then it is necessary to determine the distance between the target low-frequency antenna and the key controller through the field intensity value.

[0120] Controlling two initial target low-frequency antennas to simultaneously send initial field intensity carriers will have two possibilities:

[0121] The first possibility is that the key controller is still near the two initial target antennas and can receive the initial field intensity carriers sent by the two initial target low-frequency antennas, and then the key controller generates corresponding initial field intensity values based on the two received initial field intensity carriers. Comparing the two initial field intensity values, a low-frequency antenna corresponding to a larger initial field intensity value is determined as a target low-frequency antenna, because the larger initial field intensity value represents that the initial target low-frequency antenna corresponding to the larger initial field intensity value is closer to the key controller, so that the target low-frequency antenna can be more accurately determined.

[0122] The second possibility is that the key controller is closer to one of the initial target low-frequency antennas and can receive the initial field intensity carrier sent by the initial target low-frequency antenna, and is farther away from the other initial target low-frequency antenna and cannot receive the initial field intensity carrier sent by the other initial target low-frequency antenna. At this time, the key controller can only receive one initial field intensity carrier and can only feed back one initial feedback information. The vehicle body controller determines antenna index information based on the initial feedback information, and determines a low-frequency antenna corresponding to the antenna index information as a target low-frequency antenna.

[0123] In this application, the initial target low-frequency antennas are controlled to simultaneously send initial field intensity carriers, so that the number of initial feedback information returned by the key controller and the initial field intensity value can be used to determine the target low-frequency antenna in the two initial target low-frequency antennas, and the target low-frequency antenna can be more accurately determined.

[0124] In some embodiments, the controlling the vehicle to automatically lock based on the second feedback information comprises:

[0125] determining the key position based on the second feedback information in response to the second feedback information being valid;

[0126] controlling the vehicle to be automatically locked in response to the key position being outside the preset area.

[0127] Specifically, when the second feedback information is received, it is necessary to judge whether the second feedback information is valid. Specifically, the second feedback information is decrypted to obtain decrypted second information; based on the decrypted second information, a plurality of field strength values are obtained, and the plurality of field strength values correspond one-to-one to a plurality of field strength carriers; in response to one of the field strength values being a preset invalid value, it is determined that the second feedback information is invalid; in response to none of the field strength values being a preset invalid value, it is determined that the second feedback information is valid.

[0128] If the key controller receives at least one second authentication information and at least one field strength carrier, the key controller generates feedback information based on the second authentication information, generates a corresponding field strength value based on each field strength carrier, then packages and encrypts the feedback information and all field strength values to generate second feedback information, and sends it to the body controller. The feedback information can be a preset information for verifying whether the key controller is the key controller corresponding to the vehicle.

[0129] After the body controller receives the second feedback information, the second feedback information is decrypted to obtain decrypted second information, and a plurality of field strength values are determined based on the decrypted second information, and the plurality of field strength values correspond one-to-one to a plurality of field strength carriers.

[0130] When at least one of the plurality of field strength values is a preset invalid value, it is determined that the second feedback information is invalid, and the key position cannot be determined based on the second feedback information.

[0131] The preset invalid value is a preset invalid numerical value. For example, the preset invalid value is 0 or a negative number.

[0132] Generally, the field strength value in the second feedback information returned by the key controller is a number greater than 0, and the body controller can calculate the specific position of the key based on the four field strength values corresponding to the four low-frequency antennas. However, during the process of returning the second feedback information by the body controller, the returned field strength value may be 0 or a negative number due to the influence of space electromagnetic interference or other signals, which causes the body controller to be unable to calculate the key position based on the field strength value. Therefore, when at least one of the plurality of field strength values is a preset invalid value, it is determined that the second feedback information is invalid, and the key position cannot be determined based on the second feedback information. When none of the plurality of field strength values is a preset invalid value, it can be determined that the second feedback information is valid.

[0133] Then the key position is determined based on the second feedback information. Specifically, the key position is determined based on the plurality of field strength values in the second feedback information and a preset field strength rule. The preset field strength rule is a relationship between the field strength values of the first to fourth low frequency antennas and the position of the key stored by the body controller itself.

[0134] The body controller obtains the field strength values of the low frequency antennas based on the second feedback information, and matches the field strength values with the preset field strength rule, so as to determine the current position of the key.

[0135] When the key position is located outside the preset area, it indicates that the key has left the unlocking area and entered the locking area, and the vehicle is controlled to be automatically locked at this time. The preset area is a preset unlocking area, and the vehicle cannot be controlled to be automatically locked when the key is located in the unlocking area; the vehicle can be controlled to be automatically locked when the key is located outside the unlocking area, i.e., in the locking area.

[0136] In the present application, the second feedback information determines the key position, and when it is determined that the key position is located outside the preset area, it can be determined that the vehicle has entered the locking area from the unlocking area (because it has been determined in step S200 that the key controller is around the vehicle), and the vehicle can be controlled to be automatically locked at this time.

[0137] In some embodiments, the controlling the vehicle to be automatically locked based on the second feedback information further includes: when the key position is located in the preset area, the key searching strategy is repeatedly executed until the determined key position is located outside the preset area, or the number of repeated executions reaches a preset number and no second feedback information is received or the received second feedback information is invalid, the vehicle is controlled to be automatically locked.

[0138] The key searching strategy includes:

[0139] The target low frequency antenna is controlled to send the second authentication information, and all low frequency antennas are controlled to send the field strength carrier;

[0140] In response to receiving the second feedback information and the second feedback information being valid, the key position is determined based on the second feedback information.

[0141] Specifically, when the key position is located in the preset area, it indicates that the key is located in the unlocking area, and the user has not left the unlocking area, and the key position needs to be continuously monitored until the key enters the locking area. Therefore, the key searching strategy is repeatedly executed until the determined key position is located outside the preset area, which indicates that the key has entered the locking area from the unlocking area, and the vehicle can be controlled to be automatically locked at this time.

[0142] Or, in the process of cyclically executing the key search strategy, the number of times of cyclic execution has reached the preset number, but no second feedback information is still received, indicating that the user has left the unlocking area far away at this time, resulting in that the key cannot receive the second field strength carrier, so as to fail to feed back the second feedback information, so the vehicle can be controlled to be automatically locked at this time.

[0143] Or, in the process of continuing to control all low-frequency antennas to cyclically send the second field strength carrier, the number of times of cyclic execution has reached the preset number, but the received second feedback information is invalid or no second feedback information is received, indicating that the key controller can be affected by spatial electromagnetic interference, signal interference or distance, resulting in that the effective field strength carrier cannot be received or the effective field strength value cannot be generated, resulting in that the second feedback information is invalid, but the number of times of cyclic execution has reached the preset number at this time, and it is meaningless to continue to send the field strength carrier, which will only consume excessive power, so the vehicle can be controlled to be automatically locked at this time.

[0144] The preset number of times is the preset number of times of cyclically sending the field strength carrier, and under normal circumstances, when the number of cycles reaches the preset number of times and no effective second feedback information is received, it is almost impossible to receive effective second feedback information by continuing to cyclically execute. Illustratively, the preset number of times is 10 or 12.

[0145] In the present application, by judging the second feedback information, it is determined whether the position of the key can be determined based on the second feedback information, and it is determined whether the vehicle can be controlled to be automatically locked based on the determined position of the key, so that the change of the position of the key can be accurately determined, and the vehicle can be timely and accurately controlled to be automatically locked.

[0146] In the present application, in the process of searching for the key, the feedback logic of the vehicle body controller and the key controller is decoupled. The vehicle body controller only needs to trigger the low-frequency antenna to search for the key, and the interval is to drive all low-frequency antennas or part of the low-frequency antennas to search for the key.

[0147] The data feedback of the key controller by the vehicle body controller is separated, and the vehicle body controller no longer controls the second low-frequency antenna to send low-frequency data after the key controller feeds back the low-frequency data of the first low-frequency antenna (i.e. the first authentication information). In the process of triggering the low-frequency antenna to search for the key, as long as the high-frequency data (i.e. the first feedback information) fed back by the key controller is received and the encryption and decryption are successful, it is considered that there is a legal key, at this time, it can be confirmed that the key is in the vicinity of the vehicle, which can be used as an important precondition trigger condition (the trigger condition of the away-from-vehicle locking is that the key changes from having to not having, or the position of the key changes from the unlocking area to the locking area).

[0148] After the key is determined to be in the vicinity of the vehicle in the above step, a low-frequency antenna is controlled to send low-frequency data (i.e., second authentication information), and other low-frequency antennas are controlled to send field intensity carriers to determine the specific position of the key.

[0149] In the process of sending the first authentication data, a maximum query period is set to 12 times, and if the second feedback information is received within 12 times, it indicates that the key is found, and then the step of sending the second authentication information is entered; if the first feedback information is not received within 12 times, the key is not found, and then a traditional key positioning strategy is entered in order to reduce energy consumption.

[0150] The application can significantly shorten the time for finding the key in each round, so that multiple key searching actions can be performed in the same time, and the automatic locking failure caused by the fact that the key cannot be found in the case of environmental interference and the person carrying the key leaves the vehicle beyond the communication range of the key and the vehicle.

[0151] It should be noted that the method of the embodiments of the application can be executed by a single device, such as a computer or a server. The method of the embodiments can also be applied to a distributed scenario, and be completed by multiple devices cooperating with each other. In this distributed scenario, one of the multiple devices can only execute one or more steps in the method of the embodiments of the application, and the multiple devices can interact with each other to complete the method.

[0152] It should be noted that some embodiments of the application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than the order described above and still achieve desirable results. In addition, the processes depicted in the figures do not necessarily require the particular order shown or sequential order to achieve the desired results. In certain implementations, multitasking and parallel processing can be advantageous.

[0153] Based on the same inventive concept, the application also provides a device for controlling automatic locking of a vehicle, which corresponds to any of the above-mentioned method embodiments. The device is executed based on a keyless entry and start system, and the keyless entry and start system includes multiple low-frequency antennas.

[0154] The device for controlling automatic locking of a vehicle includes:

[0155] The sending module is configured to, in response to the key searching function being woken up, control the multiple low-frequency antennas to cyclically send first authentication information in a preset order.

[0156] The determining module is configured to, in response to receiving the first feedback information, determine the target low-frequency antenna based on the first feedback information.

[0157] a control module, configured to control the target low-frequency antenna to send the second authentication information and control all the low-frequency antennas to send the field intensity carrier;

[0158] an execution module, configured to control the vehicle to be automatically locked in response to receiving the second feedback information based on the second feedback information.

[0159] In some embodiments, the plurality of low-frequency antennas comprises a first low-frequency antenna arranged in the vehicle, a second low-frequency antenna and a third low-frequency antenna arranged on two sides of the vehicle body respectively, and a fourth low-frequency antenna arranged at the rear of the vehicle.

[0160] In some embodiments, the sending module is further configured to:

[0161] control the first authentication information to be sent by the second low-frequency antenna, the third low-frequency antenna, the first low-frequency antenna and the fourth low-frequency antenna in sequence;

[0162] or control the first authentication information to be sent by the second low-frequency antenna and the first low-frequency antenna simultaneously, and then control the first authentication information to be sent by the third low-frequency antenna and the fourth low-frequency antenna simultaneously;

[0163] or control the first authentication information to be sent by the second low-frequency antenna and the fourth low-frequency antenna simultaneously, and then control the first authentication information to be sent by the first low-frequency antenna and the third low-frequency antenna simultaneously;

[0164] or control the first authentication information to be sent by the third low-frequency antenna and the first low-frequency antenna simultaneously, and then control the first authentication information to be sent by the second low-frequency antenna and the fourth low-frequency antenna simultaneously;

[0165] or control the first authentication information to be sent by the third low-frequency antenna and the fourth low-frequency antenna simultaneously, and then control the first authentication information to be sent by the second low-frequency antenna and the first low-frequency antenna simultaneously.

[0166] In some embodiments, the determination module is further configured to:

[0167] decrypt the first feedback information to obtain decrypted first information in response to receiving one first feedback information;

[0168] determine antenna label information based on the decrypted first information, the antenna label information corresponding to one of the low-frequency antennas;

[0169] determine the low-frequency antenna corresponding to the antenna label information as the target low-frequency antenna.

[0170] In some embodiments, the determination module is further configured to:

[0171] decrypt two first feedback information respectively to obtain two decrypted first information in response to receiving the two first feedback information simultaneously;

[0172] determining two antenna label information respectively based on the two decrypted first information, each of the antenna label information corresponding to a low-frequency antenna;

[0173] determining two initial target low-frequency antennas based on the two antenna label information;

[0174] determining a target low-frequency antenna based on the two initial target low-frequency antennas.

[0175] In some embodiments, the determining module is further configured to:

[0176] controlling the two initial target low-frequency antennas to simultaneously send initial field strength carriers;

[0177] in response to receiving an initial feedback information, determining an antenna label information based on the initial feedback information, and determining a low-frequency antenna corresponding to the antenna label information as a target low-frequency antenna;

[0178] in response to receiving two initial feedback information, determining two initial field strength values respectively based on the two initial feedback information, each of the initial field strength values corresponding to a low-frequency antenna, and comparing the two initial field strength values to determine a low-frequency antenna corresponding to a larger initial field strength value as a target low-frequency antenna.

[0179] In some embodiments, the executing module is further configured to:

[0180] in response to the second feedback information being valid, determining a vehicle key position based on the second feedback information;

[0181] in response to the vehicle key position being located outside a preset area, controlling the vehicle to automatically lock.

[0182] In some embodiments, the executing module is further configured to:

[0183] in response to the vehicle key position being located within the preset area, cyclically executing a key searching strategy until the determined vehicle key position is located outside the preset area, or the number of cycles reaches a preset number and no second feedback information is received or the received second feedback information is invalid, and then controlling the vehicle to automatically lock;

[0184] wherein the key searching strategy comprises:

[0185] controlling the target low-frequency antenna to send a second authentication information and controlling all low-frequency antennas to send field strength carriers;

[0186] in response to receiving a second feedback information and the second feedback information being valid, determining a vehicle key position based on the second feedback information.

[0187] In some embodiments, the execution module is further configured to:

[0188] decrypt the second feedback information to obtain decrypted second information;

[0189] determine a plurality of field strength values based on the decrypted second information, the plurality of field strength values corresponding to the plurality of field strength carriers one by one;

[0190] determine the position of the vehicle key based on the plurality of field strength values and a preset field strength rule.

[0191] For the convenience of description, the above device is described as various modules described respectively in terms of functions. Of course, in the implementation of the present application, the functions of each module can be implemented in one or more software and / or hardware.

[0192] The device of the above embodiment is used to implement the method of controlling the automatic locking of the vehicle in any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be described here.

[0193] Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present application also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the method of controlling the automatic locking of the vehicle according to any of the above embodiments.

[0194] Figure 6 A more specific hardware structure of an electronic device is shown, which can include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 for communication within the device.

[0195] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, etc., for executing related programs to implement the technical solutions provided by the embodiments of the present application.

[0196] The memory 1020 can be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, etc. The memory 1020 can store an operating system and other application programs, and when the technical solutions provided in the embodiments of the present specification are implemented by software or firmware, the related program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0197] The input / output interface 1030 is configured to connect an input / output module to realize information input and output. The input / output module can be configured as a component in the device (not shown in the figure) or can be externally connected to the device to provide corresponding functions. The input device can include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device can include a display, a speaker, a vibrator, an indicator light, etc.

[0198] The communication interface 1040 is configured to connect a communication module (not shown in the figure) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired manner (such as USB, network cable, etc.) or through a wireless manner (such as mobile network, WIFI, Bluetooth, etc.).

[0199] The bus 1050 includes a channel for transmitting information between various components (such as the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040) of the device.

[0200] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040, and the bus 1050, in the specific implementation process, the device can also include other components necessary for normal operation. In addition, those skilled in the art can understand that the above device can also only contain components necessary for implementing the embodiments of the present specification, and does not necessarily contain all the components shown in the figure.

[0201] The electronic device of the above embodiments is used to implement the method of controlling the automatic locking of the vehicle in any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described here.

[0202] Based on the same inventive concept, the present application also provides a non-transitory computer readable storage medium, which stores computer instructions for causing the computer to execute the method of controlling the automatic locking of the vehicle as described in any of the above embodiments.

[0203] The computer readable medium of the embodiments includes permanent and non-permanent, removable and non-removable media, which can realize information storage by any method or technology. The information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

[0204] The storage medium of the above-mentioned embodiments stores computer instructions for causing the computer to execute the method of controlling the automatic locking of the vehicle as described in any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which are not repeated here.

[0205] Based on the same inventive concept, corresponding to the method of any of the above-mentioned embodiments, the present application also provides a computer program product comprising computer program instructions which, when executed on a computer, cause the computer to perform the method of controlling the automatic locking of the vehicle as described in any of the above embodiments, with the beneficial effects of the corresponding method embodiments, which are not repeated here.

[0206] Based on the same inventive concept, corresponding to the method of any of the above-mentioned embodiments, the present application also provides a vehicle comprising the device, electronic equipment, storage medium or computer program product described in any of the above-mentioned embodiments. The vehicle has the beneficial effects of any of the above-mentioned embodiments, which are not repeated here.

[0207] It can be understood that before using the technical solutions of various embodiments in the present disclosure, the type of personal information involved, the scope of use, the scene of use, etc. will be informed to the user in a proper manner, and the authorization of the user will be obtained.

[0208] For example, in response to receiving the user's active request, the user is sent prompt information to explicitly prompt the user that the operation requested to be performed will require the acquisition and use of the user's personal information. Thus, the user can voluntarily choose whether to provide personal information to the software or hardware such as electronic equipment, application programs, servers or storage media that perform the technical solutions of the present disclosure according to the prompt information.

[0209] As an optional but not limited implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0210] It is understood that the above notification and user authorization process are merely illustrative and do not constitute a limitation on the implementation of this disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this disclosure.

[0211] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0212] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0213] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0214] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A method of controlling automatic locking of a vehicle, characterized by, The method is performed based on a keyless entry and start system including a plurality of low-frequency antennas, and the method comprises: In response to the key search function being woken up, the plurality of low-frequency antennas are controlled to send first authentication information in a preset sequence, and after the first low-frequency antenna sends the first authentication information, the second low-frequency antenna can send the first authentication information in the preset sequence without waiting for feedback from the key controller to the first low-frequency antenna, thereby unbinding the vehicle body controller sending signal and the key controller receiving signal; In response to receiving first feedback information, a target low-frequency antenna is determined based on the first feedback information, wherein the first feedback information is generated and sent by the key controller based on the first authentication information; The target low-frequency antenna is controlled to send second authentication information and all low-frequency antennas are controlled to send field strength carriers; In response to receiving second feedback information, the vehicle is automatically locked based on the second feedback information, wherein the second feedback information is generated and sent by the key controller based on the second authentication information and the field strength carriers.

2. The method of claim 1, wherein, The plurality of low-frequency antennas include a first low-frequency antenna arranged in the vehicle, a second low-frequency antenna and a third low-frequency antenna arranged on both sides of the vehicle body, and a fourth low-frequency antenna arranged at the rear of the vehicle; The control of the plurality of low-frequency antennas to send the first authentication information in the preset sequence comprises: controlling the first authentication information to be sent in the order of the second low-frequency antenna, the third low-frequency antenna, the first low-frequency antenna, and the fourth low-frequency antenna; or controlling the second low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time, and then controlling the third low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time; or controlling the second low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time, and then controlling the first low-frequency antenna and the third low-frequency antenna to send the first authentication information at the same time; or controlling the third low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time, and then controlling the second low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time; or controlling the third low-frequency antenna and the fourth low-frequency antenna to send the first authentication information at the same time, and then controlling the second low-frequency antenna and the first low-frequency antenna to send the first authentication information at the same time.

3. The method of claim 1, wherein, The determination of the target low-frequency antenna based on the first feedback information comprises: In response to receiving one first feedback information, the first feedback information is decrypted to obtain decrypted first information; determining antenna label information based on the decrypted first information, wherein the antenna label information corresponds to one of the low-frequency antennas; determining the low-frequency antenna corresponding to the antenna label information as the target low-frequency antenna.

4. The method of claim 1, wherein, The determination of the target low-frequency antenna based on the first feedback information comprises: In response to receiving two first feedback information at the same time, the two first feedback information are decrypted to obtain two decrypted first information; determining two antenna label information based on the two decrypted first information, wherein each of the antenna label information corresponds to one of the low-frequency antennas; determining two low-frequency antennas corresponding to the two antenna label information as two initial target low-frequency antennas; determining the target low-frequency antenna based on the two initial target low-frequency antennas.

5. The method of claim 4, wherein, The target low-frequency antenna is determined based on the two initial target low-frequency antennas, including: controlling two initial target low-frequency antennas to simultaneously send initial field intensity carriers; in response to receiving an initial feedback information, determining antenna label information based on the initial feedback information, and determining a low-frequency antenna corresponding to the antenna label information as a target low-frequency antenna; in response to receiving two initial feedback information, determining two initial field intensity values based on the two initial feedback information, each of the initial field intensity values corresponding to a low-frequency antenna; comparing the two initial field intensity values, and determining a low-frequency antenna corresponding to a larger initial field intensity value as a target low-frequency antenna.

6. The method of claim 1, wherein, The vehicle is automatically locked based on the second feedback information, including: in response to the second feedback information being valid, determining a vehicle key position based on the second feedback information; in response to the vehicle key position being located outside a preset area, controlling the vehicle to be automatically locked.

7. The method of claim 6, wherein, The vehicle is automatically locked based on the second feedback information, further including: in response to the vehicle key position being located within the preset area, cyclically executing a key searching strategy until the determined vehicle key position is located outside the preset area, or the number of cycles reaches a preset number and no second feedback information is received or the received second feedback information is invalid, and then controlling the vehicle to be automatically locked; wherein the key searching strategy includes: controlling the target low-frequency antenna to send second authentication information and controlling all low-frequency antennas to send field intensity carriers; in response to receiving second feedback information and the second feedback information being valid, determining a vehicle key position based on the second feedback information.

8. The method according to claim 6 or 7, characterized in that, The vehicle key position is determined based on the second feedback information, including: decrypting the second feedback information to obtain decrypted second information; determining a plurality of field intensity values based on the decrypted second information, the plurality of field intensity values corresponding to the plurality of field intensity carriers one by one; determining a vehicle key position based on the plurality of field intensity values and a preset field intensity rule.

9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the program to implement the method of any one of claims 1 to 8.

10. A vehicle characterized by comprising: The electronic device of claim 9. The electronic device of claim 9.

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