Method and device for preventing key from being mistakenly locked in vehicle, controller and vehicle

Abstract

The invention provides a method and device for preventing a key from being mistakenly locked in a vehicle, a controller and a vehicle, the vehicle comprises the controller, a signal receiving and transmitting device and an intelligent key, and the method comprises the steps that if the controller completes vehicle locking operation and window lifting operation based on a locking signal transmitted by the intelligent key, the signal receiving and transmitting device is driven to transmit a first wireless signal, receiving a second wireless signal transmitted by the intelligent key based on the first wireless signal; the controller determines whether the intelligent key emitting the second wireless signal is an intelligent key emitting a locking signal according to the second wireless signal; if the intelligent key emitting the second wireless signal is the intelligent key emitting the locking signal, the controller determines whether the intelligent key emitting the second wireless signal is located in the vehicle or not according to the second wireless signal; and if the intelligent key emitting the second wireless signal is located in the vehicle, the controller controls the vehicle door to be unlocked and / or controls the vehicle window to descend by a preset height.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a method, device, controller and vehicle for preventing a key from being accidentally locked in a vehicle. Background Art

[0002] As consumers' demand for automobile intelligence and convenience continues to increase, concentrating the automatic window closing function on the smart key system has become an important means for automobile manufacturers to meet market demand and improve user experience.

[0003] However, in actual use, users may occasionally make some operational errors, especially when a newly-produced vehicle is parked at a 4S store or factory. After the staff uses the smart key to control the vehicle locking, during the automatic window closing process, due to the large number of parked vehicles, in order to avoid key confusion, the staff habitually put the smart key into the vehicle through the window gap. Since the window will be completely closed in a short time, the smart key may be mistakenly locked in the vehicle, resulting in the inability to use the vehicle normally, which will cause great inconvenience and loss to the user.

[0004] Currently, there is still a lack of effective solutions for specific scenarios where the smart key is mistakenly locked in the vehicle due to user error after the vehicle is locked. Summary of the invention

[0005] In view of this, the present application provides a method, device, controller and vehicle for preventing the key from being accidentally locked in the vehicle, so as to solve the technical problem that after the vehicle is locked, the smart key may be accidentally locked in the vehicle due to user's erroneous operation, resulting in the user being unable to use the vehicle normally, which will cause great inconvenience and loss to the user.

[0006] The embodiment of the present application provides a method for preventing a key from being accidentally locked in a vehicle, the vehicle comprising a controller, a signal transceiver, and a smart key, the method comprising: If the controller completes the vehicle locking operation and window raising operation based on the locking signal transmitted by the smart key, the signal transceiver is driven to transmit a first wireless signal, and a second wireless signal transmitted by the smart key based on the first wireless signal is received; The controller determines, according to the second wireless signal, whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal; If the smart key transmitting the second wireless signal is the smart key transmitting the locking signal, the controller determines whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal; If the smart key transmitting the second wireless signal is located in the vehicle, the controller controls the door to be unlocked and / or controls the window to be lowered to a preset height.

[0007] In the method for preventing a key from being accidentally locked in a vehicle provided in an embodiment of the present application, if the controller completes the vehicle locking operation and the window raising operation based on the locking signal transmitted by the smart key, the signal transceiver is driven to transmit a first wireless signal, and receives a second wireless signal transmitted by the smart key based on the first wireless signal; the controller determines whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal based on the second wireless signal; if the smart key transmitting the second wireless signal is the smart key transmitting the locking signal, the controller determines whether the smart key transmitting the second wireless signal is located in the vehicle based on the second wireless signal; if the smart key transmitting the second wireless signal is located in the vehicle, the controller controls the door to be unlocked and / or controls the window to be lowered to a preset height. Based on this, after the vehicle completes the locking operation and the window raising operation, the present application determines that the smart key that transmits the locking signal is still in the vehicle, unlocks the door and / or controls the window to drop to a preset height, allowing the user to open the door and / or take out the smart key left in the vehicle through the gap in the window, thereby effectively preventing the situation where the vehicle cannot be used normally due to the user's mistaken locking of the smart key in the vehicle after the vehicle is locked, avoiding unnecessary losses to the user, and improving the user experience and the intelligence level of the vehicle. The present application effectively prevents misjudgment operations caused by illegal keys or signal interference through dual verification of the identity and location of the smart key. The present application drives the signal transceiver to transmit the first wireless signal only after the vehicle completes the locking operation and the window raising operation, without the need for periodic detection, thereby reducing the energy consumption of the vehicle.

[0008] In some embodiments of the present application, the locking signal includes a first key ID, the second wireless signal includes a second key ID, and determining whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal according to the second wireless signal includes: Compare the first key ID with the second key ID; If the first key ID is the same as the second key ID, it is determined that the smart key transmitting the second wireless signal is the smart key transmitting the locking signal.

[0009] In some embodiments of the present application, the method further includes: The electric field strength of the first wireless signal is measured by the smart key, wherein the second wireless signal includes the electric field strength of the first wireless signal.

[0010] In some embodiments of the present application, determining whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal includes: Comparing the electric field strength of the first wireless signal with a preset strength range; If the electric field strength of the first wireless signal is within the strength range, it is determined that the smart key that transmits the second wireless signal is located in the vehicle.

[0011] In some embodiments of the present application, the vehicle includes a plurality of signal transceiver devices, and the plurality of signal transceiver devices are installed at different positions of the vehicle, and determining whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal includes: Comparing the electric field strength of the first wireless signal sent by each signal transceiver device with a preset strength range corresponding to each signal transceiver device; If the electric field strength of the first wireless signal sent by each signal transceiver is within the strength range corresponding to each signal transceiver, it is determined that the smart key that transmits the second wireless signal is located in the vehicle.

[0012] In some embodiments of the present application, after the controller controls the vehicle door to be unlocked, the method further includes: The controller detects whether the vehicle door is opened within a preset time period; If the vehicle door is not opened within a preset time period, the controller turns off a preset automatic relocking function of the vehicle.

[0013] In some embodiments of the present application, after determining that the smart key transmitting the second wireless signal is located in the vehicle, the method further includes: The controller executes a preset early warning reminder operation to remind the user to take away the smart key left in the vehicle. In a second aspect, an embodiment of the present application further provides a device for preventing a key from being accidentally locked in a vehicle, the vehicle comprising a signal transceiver and a smart key, the device comprising: A driving module, configured to drive the signal transceiver to transmit a first wireless signal and receive a second wireless signal transmitted by the smart key based on the first wireless signal to complete the vehicle locking operation and window raising operation based on the locking signal transmitted by the smart key; A first determination module, configured to determine, according to the second wireless signal, whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal; a second determination module, configured to determine whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal if the smart key transmitting the second wireless signal is the smart key transmitting the locking signal; The unlocking module is used to control the unlocking of the vehicle door and / or the lowering of the vehicle window to a preset height if the smart key that transmits the second wireless signal is located in the vehicle.

[0014] In a third aspect, an embodiment of the present application further provides a controller, comprising: a memory storing computer-readable instructions; and a processor executing the computer-readable instructions stored in the memory to implement the method for preventing a key from being accidentally locked in a vehicle as described in the above embodiment.

[0015] In a fourth aspect, an embodiment of the present application further provides a vehicle, comprising a signal transceiver, a smart key and a controller as described in the above embodiment.

[0016] It can be understood that the device for preventing keys from being accidentally locked in a vehicle of the second aspect provided above, the controller of the third aspect and the vehicle of the fourth aspect all correspond to the method for preventing keys from being accidentally locked in a vehicle of the first aspect. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects of the corresponding method for preventing keys from being accidentally locked in a vehicle provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings such as the provided drawings can be obtained without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the hardware structure of a vehicle provided in one embodiment of the present application.

[0019] Figure 2 It is a flowchart of a method for preventing a key from being accidentally locked in a vehicle provided by an embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of functional modules of a device for preventing a key from being accidentally locked in a vehicle provided by an embodiment of the present application.

[0021] Component Symbols Vehicle 1 Controller 10 Memory 11 Processor 12 Signal transceiver 20 Smart Key 30 Window motor 40 First sensor 50 Second sensor 60 Device 100 for preventing key from being accidentally locked in vehicle 1 Driver module 110 The first determination module 120 Second determination module 130 Unlock module 140 The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the implementation methods of the present application and the features in the implementation methods can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present application. The described implementations are only part of the implementations of the present application, rather than all the implementations.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0025] It should be further noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0026] In this application, "at least one" means one or more, and "more" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0027] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0028] Please refer to Figure 1 , Figure 1 It is a schematic diagram of the hardware structure of the vehicle 1 provided in one embodiment of the present application.

[0029] Specifically, the vehicle 1 provided in the embodiment of the present application includes a controller 10. The controller 10 may be an onboard device of the vehicle 1, such as a body controller (Body Control Module, BCM), a Passive Entry and Passive Start controller (PEPS), etc.

[0030] The method for preventing a key from being accidentally locked in a vehicle provided in an embodiment of the present application is applied to one or more controllers 10. The controller 10 is a device that can automatically perform numerical calculations and / or information processing according to pre-set or stored instructions. Its hardware includes but is not limited to a microprocessor, an application specific integrated circuit (ASIC), a programmable gate array (FPGA), a digital processor (DSP), an embedded device, etc.

[0031] In other embodiments, the controller 10 may also be any electronic product that is communicatively connected to the vehicle 1, such as a personal computer, a tablet computer, etc. The controller 10 may interact with the user through a keyboard, a mouse, a remote control, a touch pad, or a voice control device.

[0032] In some embodiments of the present application, the network where the controller 10 is located includes but is not limited to: the Internet, a wide area network, a metropolitan area network, a local area network, a virtual private network (VPN), etc.

[0033] In some embodiments of the present application, the vehicle 1 further includes a signal transceiver 20 and a smart key 30, and the controller 10 is in communication with the signal transceiver 20 and the smart key 30. In the embodiment of the present application, the signal transceiver 20 can be installed at different locations of the vehicle 1, such as inside the cab, inside the trunk, etc. The smart key 30 can include but is not limited to a PEPS key, a Bluetooth key, etc. Among them, the signal transceiver 20 can be an antenna.

[0034] Please refer to Figure 1 , Figure 1 It is a flowchart of a method for preventing a key from being accidentally locked in a vehicle 1 provided in an embodiment of the present application.

[0035] Specifically, the method for preventing a key from being accidentally locked in a vehicle 1 includes the following steps. According to different requirements, the order of some steps in the flowchart may be changed, and some steps may be omitted.

[0036] In step S10, if the controller completes the vehicle locking operation and window raising operation based on the locking signal transmitted by the smart key, the signal transceiver is driven to transmit a first wireless signal and receive a second wireless signal transmitted by the smart key based on the first wireless signal. Specifically, the vehicle 1 further includes a window motor 40 and a first sensor 50 (such as a Hall sensor, an ultrasonic sensor, etc.), and the controller 10 is in communication with the window motor 40 and the first sensor 50. The window motor 40 is used to drive the window to rise and fall, and the first sensor 50 is used to detect the switch state of the window. Since the vehicle 1 of the present application is equipped with an automatic window closing function, and the automatic window closing function is integrated into the smart key 30, after the user presses the lock button on the smart key 30, the smart key 30 will send a lock signal to the controller 10. After receiving the lock signal, the controller 10 will control the vehicle 1 to perform a locking operation according to the lock signal. The locking operation includes but is not limited to locking all doors. At the same time, the switch state of the window will be determined according to the detection data of the first sensor 50. If the window is in the open state, the controller 10 will control the window motor 40 to perform the window raising operation.

[0037] After the window is completely closed, the window motor 40 sends a window raising operation signal to the controller 10, and then the controller 10 drives all signal transceivers 20 installed in the vehicle 1 to transmit a first wireless signal, which is a low-frequency signal, such as 125KHZ.

[0038] After receiving the first wireless signal, the smart key 30 transmits a second wireless signal to the controller 10 . The second wireless signal is a high-frequency signal, such as 433.92 MHZ.

[0039] In step S11 , the controller determines whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal according to the second wireless signal.

[0040] In some embodiments of the present application, the locking signal includes a first key ID, and the second wireless signal includes a second key ID, wherein the key ID is a unique identification assigned to each smart key 30 during the manufacturing process. The key ID can be a hardware-based serial number or a hash value generated by an encryption algorithm.

[0041] Specifically, the step of determining whether the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal according to the second wireless signal includes: comparing the first key ID with the second key ID; if the first key ID is the same as the second key ID, determining that the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal. If the first key ID is different from the second key ID, determining that the smart key 30 transmitting the second wireless signal is not the smart key 30 transmitting the locking signal.

[0042] The controller 10 extracts the first key ID after receiving the locking signal and extracts the second key ID after receiving the second wireless signal. The controller 10 determines whether the first key ID and the second key ID are the same by comparing the binary representation or string representation of the first key ID and the second key ID.

[0043] In some embodiments of the present application, if it is determined that the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal, step S12 is then executed.

[0044] In some embodiments of the present application, if it is determined that the smart key 30 transmitting the second wireless signal is not the smart key 30 transmitting the locking signal, the controller 10 will consider that there is a safety risk in the vehicle 1 and refuse to perform subsequent operations. At this time, the controller 10 can also send a warning message to the user through the horn, lights, etc. of the vehicle 1 to remind the user to check the pairing status of the smart key 30.

[0045] In step S12, the controller determines whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal.

[0046] In some embodiments of the present application, after receiving the first wireless signal, the smart key 30 measures the electric field strength of the first wireless signal, and based on this, transmits a second wireless signal to the controller 10. The second wireless signal includes the electric field strength of the first wireless signal. The closer the smart key 30 is to the vehicle 1, the greater the electric field strength of the first wireless signal is measured.

[0047] Specifically, determining whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 according to the second wireless signal specifically includes: comparing the electric field strength of the first wireless signal with a preset strength range; if the electric field strength of the first wireless signal is within the strength range, determining that the smart key 30 transmitting the second wireless signal is located in the vehicle 1. For different vehicle models, the threshold value of the preset strength range is different.

[0048] After receiving the second wireless signal, the controller 10 extracts the electric field strength of the first wireless signal and determines whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 by analyzing whether the electric field strength of the first wireless signal is within a preset strength range.

[0049] In some embodiments of the present application, if the smart key 30 that transmits the second wireless signal is located in the vehicle 1 , step S13 is then executed.

[0050] In some embodiments of the present application, if the smart key 30 that transmits the second wireless signal is not in the vehicle 1 , it means that the smart key 30 is not mistakenly locked in the vehicle 1 , and the user can use the vehicle 1 normally.

[0051] In some embodiments of the present application, step S11 and step S12 may also be performed simultaneously, and the present application does not impose any limitation on this.

[0052] In other embodiments, the vehicle 1 may include multiple signal transceiver devices 20, and the multiple signal transceiver devices 20 are installed at different positions of the vehicle 1. The step of determining whether the smart key 30 that transmits the second wireless signal is located in the vehicle 1 according to the second wireless signal may include: comparing the electric field strength of the first wireless signal sent by each signal transceiver device 20 with a preset intensity range corresponding to each signal transceiver device 20; if the electric field strength of the first wireless signal sent by each signal transceiver device 20 is within the intensity range corresponding to each signal transceiver device 20, it is determined that the smart key 30 that transmits the second wireless signal is located in the vehicle 1.

[0053] Specifically, the signal transceiver 20 can be installed in the front and rear side areas inside the vehicle, the side areas on the top of the vehicle, the area near the door inside the vehicle, etc. Based on this, the smart key 30 is comprehensively positioned, the positioning accuracy of the smart key 30 is improved, and misjudgment is avoided.

[0054] In one embodiment of the present application, the method for obtaining the preset intensity range corresponding to each signal transceiver device 20 specifically includes: selecting an interference-free indoor or outdoor environment as an experimental site to ensure that there is no interference during the experiment. Obtain the electric field strength of the first wireless signal measured when the smart key 30 is farthest and closest to each signal transceiver device 20 in the vehicle 1. Repeat the measurement multiple times, take the average value of the electric field strength of the first wireless signal measured when the smart key 30 is farthest from the signal transceiver device 20 in the vehicle 1 as the upper limit of the intensity range, take the average value of the electric field strength of the first wireless signal measured when the smart key 30 is closest to the signal transceiver device 20 in the vehicle 1 as the lower limit of the intensity range, and then obtain the intensity range. Step S13, the controller controls the vehicle door to unlock and / or controls the vehicle window to drop to a preset height.

[0055] In some embodiments of the present application, the vehicle doors include but are not limited to a main driver's door, a co-pilot's door, a rear door, etc.

[0056] Specifically, the controller 10 unlocks the door when determining that the smart key 30 transmitting the second wireless signal is located in the vehicle 1. When the door is in the unlocked state, it indicates that the door is allowed to be opened.

[0057] In some embodiments of the present application, the vehicle windows include but are not limited to the main driver's window, the co-driver's window, the sunroof, etc.

[0058] Specifically, after determining that the smart key 30 transmitting the second wireless signal is located in the vehicle 1, the controller 10 sends a window opening instruction to the window motor 40. After receiving the window opening instruction, the window motor 40 lowers the window to a preset height, or completely opens the window. The height to which the window is lowered needs to meet the user's need to take the smart key 30 left in the vehicle 1 through the gap in the window.

[0059] In the method for preventing the key from being accidentally locked in the vehicle 1 in the above embodiment, if the controller 10 completes the vehicle locking operation and the window raising operation based on the locking signal transmitted by the smart key 30, the signal transceiver 20 is driven to transmit a first wireless signal, and receives a second wireless signal transmitted by the smart key 30 based on the first wireless signal; the controller 10 determines whether the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal based on the second wireless signal; if the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal, the controller 10 determines whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 based on the second wireless signal; if the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal, the controller 10 determines whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 based on the second wireless signal; if the smart key 30 transmitting the second wireless signal is located in the vehicle 1, the controller 10 controls the door to be unlocked and / or controls the window to be lowered to a preset height. Based on this, after the vehicle 1 completes the locking operation and the window raising operation, the present application determines that the smart key 30 that transmits the locking signal is still in the vehicle 1, unlocks the door and / or controls the window to drop to a preset height, allowing the user to open the door and / or take out the smart key 30 left in the vehicle 1 through the gap in the window, thereby effectively preventing the situation where the vehicle 1 cannot be used normally due to the user's mistake of locking the smart key 30 in the vehicle 1 after the vehicle 1 is locked, avoiding unnecessary losses to the user, and improving the user experience and the intelligence level of the vehicle 1. The present application effectively prevents misjudgment operations caused by illegal keys or signal interference through dual verification of the identity and location of the smart key 30. The present application drives the signal transceiver 20 to transmit the first wireless signal only after the vehicle 1 completes the locking operation and the window raising operation, without the need for periodic detection, thereby reducing the energy consumption of the vehicle 1.

[0060] In some embodiments of the present application, if after the controller 10 controls the vehicle door to be unlocked, if the vehicle door is not opened within a preset time period, the method for preventing the key from being accidentally locked in the vehicle 1 also includes: the controller 10 detects whether the vehicle door is opened within a preset time period; if the vehicle door is not opened within the preset time period, the controller 10 turns off the automatic relocking function pre-set in the vehicle 1.

[0061] Specifically, the vehicle 1 further includes a second sensor 60 (such as a Hall sensor, an ultrasonic sensor, etc.). The controller 10 is in communication connection with the second sensor 60. The second sensor 60 is used to detect the open / closed state of the vehicle window. The controller 10 determines the open / closed state of the vehicle door according to the detection data of the second sensor 30.

[0062] After unlocking the door of the vehicle 1, the controller 10 obtains the door's open and close status in real time. If the door is not opened within a preset time period, it indicates that the user has not opened the door and has not taken away the smart key 30 left in the vehicle 1. Therefore, it is necessary to temporarily disable the automatic relocking function preset in the vehicle 1. The preset time period may be 15 seconds, 30 seconds, or a user-defined time period.

[0063] Among them, the automatic relocking function means that after the car door is unlocked, if the user does not open the door within the preset time, the door will automatically be locked again.

[0064] The method for preventing the key from being accidentally locked in the vehicle 1 in the above embodiment, after unlocking the door of the vehicle 1, if the door is not opened within a preset time period, temporarily turns off the automatic relocking function pre-set in the vehicle 1, to prevent the door from being automatically locked again when the user has not taken away the smart key 30 left in the vehicle 1, to avoid the embarrassing situation that the user cannot take away the smart key 30 left in the vehicle 1 after returning to the vicinity of the vehicle 1 after the preset time period, thereby improving the user experience and the intelligence level of the vehicle 1.

[0065] In some embodiments of the present application, after the controller 10 determines that the smart key 30 that transmits the second wireless signal is located in the vehicle 1, the method for preventing the key from being accidentally locked in the vehicle 1 may also include: the controller 10 performs an early warning reminder operation to remind the user to remove the smart key 30 left in the vehicle 1.

[0066] Specifically, the early warning reminder operation includes but is not limited to controlling the flashing of the lights of the vehicle 1, controlling the horn of the vehicle 1 to sound, controlling the buzzer to sound, issuing voice reminders, and pushing notifications to the user terminal connected to the controller 10.

[0067] In the method for preventing the key from being accidentally locked in the vehicle 1 in the above embodiment, after the controller 10 determines that the smart key 30 emitting the second wireless signal is located in the vehicle 1, it performs a warning reminder operation to remind the user to take out the smart key 30 left in the vehicle 1, so that the user can be aware of the smart key 30 left in the vehicle in time, thereby avoiding the inconvenience and safety hazards caused by the smart key 30 being accidentally locked in the vehicle 1. By ensuring that the user can receive the warning reminder information in time through a variety of reminder methods, the overall user experience is improved, and the intelligence level of the vehicle 1 is improved.

[0068] See also Figure 3 , Figure 3 Schematic diagram of functional modules of a device 100 for preventing a key from being accidentally locked in a vehicle 1 provided in an embodiment of the present application.

[0069] In this embodiment, based on the same concept as the method for preventing a key from being accidentally locked in a vehicle 1 in the above embodiment, the present application also provides a device 100 for preventing a key from being accidentally locked in a vehicle 1, which can be used to perform the above method for preventing a key from being accidentally locked in a vehicle 1. For ease of explanation, the schematic diagram of the composition of the embodiment of the device 100 for preventing a key from being accidentally locked in a vehicle 1 only shows the parts related to the embodiment of the present application. Those skilled in the art can understand that the illustrated structure does not constitute a limitation on the device 100 for preventing a key from being accidentally locked in a vehicle 1, and may include more or fewer components than shown in the diagram, or combine certain components, or arrange the components differently.

[0070] Specifically, the device 100 for preventing a key from being mistakenly locked in a vehicle 1 includes a driving module 110 , a first determining module 120 , a second determining module 130 , and an unlocking module 140 .

[0071] The driving module 110 is used to drive the signal transceiver 20 to transmit a first wireless signal and receive a second wireless signal transmitted by the smart key 30 based on the first wireless signal after completing the vehicle locking operation and window raising operation based on the locking signal transmitted by the smart key 30.

[0072] Specifically, the vehicle 1 further includes a window motor 40 and a first sensor 50 (such as a Hall sensor, an ultrasonic sensor, etc.), and the controller 10 is in communication with the window motor 40 and the first sensor 50. The window motor 40 is used to drive the window to rise and fall, and the first sensor 50 is used to detect the switch state of the window. Since the vehicle 1 of the present application is equipped with an automatic window closing function, and the automatic window closing function is integrated into the smart key 30, after the user presses the lock button on the smart key 30, the smart key 30 will send a lock signal to the controller 10. After receiving the lock signal, the controller 10 will control the vehicle 1 to perform a locking operation according to the lock signal. The locking operation includes but is not limited to locking all doors. At the same time, the switch state of the window will be determined according to the detection data of the first sensor 50. If the window is in the open state, the controller 10 will control the window motor 40 to perform the window raising operation.

[0073] After the window is completely closed, the window motor 40 sends a window raising operation signal to the controller 10, and then the controller 10 drives all signal transceivers 20 installed in the vehicle 1 to transmit a first wireless signal, which is a low-frequency signal, such as 125KHZ.

[0074] After receiving the first wireless signal, the smart key 30 transmits a second wireless signal to the controller 10 . The second wireless signal is a high-frequency signal, such as 433.92 MHZ.

[0075] The first determination module 120 is used to determine whether the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal according to the second wireless signal.

[0076] In some embodiments of the present application, the locking signal includes a first key ID, and the second wireless signal includes a second key ID, wherein the key ID is a unique identification assigned to each smart key 30 during the manufacturing process. The key ID can be a hardware-based serial number or a hash value generated by an encryption algorithm.

[0077] Specifically, the step of determining whether the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal according to the second wireless signal includes: comparing the first key ID with the second key ID; if the first key ID is the same as the second key ID, determining that the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal. If the first key ID is different from the second key ID, determining that the smart key 30 transmitting the second wireless signal is not the smart key 30 transmitting the locking signal.

[0078] The controller 10 extracts the first key ID after receiving the locking signal and extracts the second key ID after receiving the second wireless signal. The controller 10 determines whether the first key ID and the second key ID are the same by comparing the binary representation or string representation of the first key ID and the second key ID.

[0079] In some embodiments of the present application, if it is determined that the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal, the second determination module 130 is then executed.

[0080] In some embodiments of the present application, if it is determined that the smart key 30 transmitting the second wireless signal is not the smart key 30 transmitting the locking signal, the controller 10 will consider that there is a safety risk in the vehicle 1 and refuse to perform subsequent operations. At this time, the controller 10 can also send a warning message to the user through the horn, lights, etc. of the vehicle 1 to remind the user to check the pairing status of the smart key 30.

[0081] The second determination module 130 is used to determine whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 according to the second wireless signal if the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal.

[0082] In some embodiments of the present application, after receiving the first wireless signal, the smart key 30 measures the electric field strength of the first wireless signal, and based on this, transmits a second wireless signal to the controller 10. The second wireless signal includes the electric field strength of the first wireless signal. The closer the smart key 30 is to the vehicle 1, the greater the electric field strength of the first wireless signal is measured.

[0083] Specifically, determining whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 according to the second wireless signal specifically includes: comparing the electric field strength of the first wireless signal with a preset strength range; if the electric field strength of the first wireless signal is within the strength range, determining that the smart key 30 transmitting the second wireless signal is located in the vehicle 1. For different vehicle models, the threshold value of the preset strength range is different.

[0084] After receiving the second wireless signal, the controller 10 extracts the electric field strength of the first wireless signal and determines whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 by analyzing whether the electric field strength of the first wireless signal is within a preset strength range.

[0085] In some embodiments of the present application, if the smart key 30 transmitting the second wireless signal is located in the vehicle 1 , the unlocking module 140 is then executed.

[0086] In some embodiments of the present application, if the smart key 30 that transmits the second wireless signal is not in the vehicle 1 , it means that the smart key 30 is not mistakenly locked in the vehicle 1 , and the user can use the vehicle 1 normally.

[0087] In some embodiments of the present application, the first determination module 120 and the second determination module 130 may also be performed simultaneously, and the present application does not impose any limitation on this.

[0088] In other embodiments, the vehicle 1 may include multiple signal transceiver devices 20, and the multiple signal transceiver devices 20 are installed at different positions of the vehicle 1. The step of determining whether the smart key 30 that transmits the second wireless signal is located in the vehicle 1 according to the second wireless signal may include: comparing the electric field strength of the first wireless signal sent by each signal transceiver device 20 with a preset intensity range corresponding to each signal transceiver device 20; if the electric field strength of the first wireless signal sent by each signal transceiver device 20 is within the intensity range corresponding to each signal transceiver device 20, it is determined that the smart key 30 that transmits the second wireless signal is located in the vehicle 1.

[0089] Specifically, the signal transceiver 20 can be installed in the front and rear side areas inside the vehicle, the side areas on the top of the vehicle, the area near the door inside the vehicle, etc. Based on this, the smart key 30 is comprehensively positioned, the positioning accuracy of the smart key 30 is improved, and misjudgment is avoided.

[0090] In one embodiment of the present application, the method for obtaining the preset intensity range corresponding to each signal transceiver device 20 specifically includes: selecting an interference-free indoor or outdoor environment as an experimental site to ensure that there is no interference during the experiment. Obtain the electric field strength of the first wireless signal measured when the smart key 30 is farthest and closest to each signal transceiver device 20 in the vehicle 1. Repeat the measurement multiple times, take the average value of the electric field strength of the first wireless signal measured when the smart key 30 is farthest from the signal transceiver device 20 in the vehicle 1 as the upper limit of the intensity range, take the average value of the electric field strength of the first wireless signal measured when the smart key 30 is closest to the signal transceiver device 20 in the vehicle 1 as the lower limit of the intensity range, and then obtain the intensity range. The unlocking module 140 is used to unlock the door of the vehicle 1 if the smart key 30 transmitting the second wireless signal is located in the vehicle 1 .

[0091] In some embodiments of the present application, the vehicle doors include but are not limited to a main driver's door, a co-pilot's door, a rear door, etc.

[0092] Specifically, the controller 10 unlocks the door when determining that the smart key 30 transmitting the second wireless signal is located in the vehicle 1. When the door is in the unlocked state, it indicates that the door is allowed to be opened.

[0093] In some embodiments of the present application, the vehicle windows include but are not limited to the main driver's window, the co-driver's window, the sunroof, etc.

[0094] Specifically, after determining that the smart key 30 transmitting the second wireless signal is located in the vehicle 1, the controller 10 sends a window opening instruction to the window motor 40. After receiving the window opening instruction, the window motor 40 lowers the window to a preset height, or completely opens the window. The height to which the window is lowered needs to meet the user's need to take the smart key 30 left in the vehicle 1 through the gap in the window.

[0095] In the device 100 for preventing the key from being accidentally locked in the vehicle 1 in the above embodiment, if the controller 10 completes the vehicle locking operation and the window raising operation based on the locking signal transmitted by the smart key 30, the signal transceiver 20 is driven to transmit a first wireless signal, and receives a second wireless signal transmitted by the smart key 30 based on the first wireless signal; the controller 10 determines whether the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal based on the second wireless signal; if the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal, the controller 10 determines whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 based on the second wireless signal; if the smart key 30 transmitting the second wireless signal is the smart key 30 transmitting the locking signal, the controller 10 determines whether the smart key 30 transmitting the second wireless signal is located in the vehicle 1 based on the second wireless signal; if the smart key 30 transmitting the second wireless signal is located in the vehicle 1, the controller 10 controls the door to be unlocked and / or controls the window to be lowered to a preset height. Based on this, after the vehicle 1 completes the locking operation and the window raising operation, the present application determines that the smart key 30 that transmits the locking signal is still in the vehicle 1, unlocks the door and / or controls the window to drop to a preset height, allowing the user to open the door and / or take out the smart key 30 left in the vehicle 1 through the gap in the window, thereby effectively preventing the situation where the vehicle 1 cannot be used normally due to the user's mistake of locking the smart key 30 in the vehicle 1 after the vehicle 1 is locked, avoiding unnecessary losses to the user, and improving the user experience and the intelligence level of the vehicle 1. The present application effectively prevents misjudgment operations caused by illegal keys or signal interference through dual verification of the identity and location of the smart key 30. The present application drives the signal transceiver 20 to transmit the first wireless signal only after the vehicle 1 completes the locking operation and the window raising operation, without the need for periodic detection, thereby reducing the energy consumption of the vehicle 1.

[0096] Combination Figure 1 As shown, in some embodiments of the present application, the controller 10 includes, but is not limited to, a memory 11 storing computer-readable instructions; and a processor 12 executing the computer-readable instructions stored in the memory 11 to implement the method of preventing the key from being accidentally locked in the vehicle according to the above embodiment.

[0097] The method for preventing a key from being accidentally locked in a vehicle provided in an embodiment of the present application is applied to one or more controllers 10. The controller 10 is a device that can automatically perform numerical calculations and / or information processing according to pre-set or stored instructions. Its hardware includes but is not limited to a microprocessor, an application specific integrated circuit (ASIC), a programmable gate array (FPGA), a digital processor (DSP), an embedded device, etc.

[0098] In some embodiments of the present application, the controller 10 can be connected to a desktop computer, a notebook, a PDA, a cloud server, etc. The controller 10 can interact with the user through a keyboard, a mouse, a remote control, a touch pad, or a voice control device.

[0099] Those skilled in the art will understand that the schematic diagram is merely an example of the controller 10 and does not constitute a limitation on the controller 10. The controller 10 may include more or fewer components than shown in the diagram, or a combination of certain components, or different components. For example, the controller 10 may also include input and output devices, network access devices, buses, etc.

[0100] The processor 12 obtains the operating system of the controller 10 and various installed applications. The processor 12 obtains the application to implement the steps in the above-mentioned various methods for preventing the key from being accidentally locked in the vehicle, for example Figure 2 Steps shown.

[0101] Exemplarily, the computer readable instructions may be divided into one or more modules / units, one or more modules / units are stored in the memory 11, and are obtained by the processor 12 to complete the present application. One or more modules / units may be a series of computer instruction segments capable of completing a specific function, and the instruction segment is used to describe the acquisition process of the computer readable instructions in the controller 10.

[0102] In some embodiments of the present application, the network where the controller 10 is located includes, but is not limited to: the Internet, a wide area network, a metropolitan area network, a local area network, a virtual private network (VPN), etc.

[0103] In some embodiments of the present application, the memory 11 is used to store program codes and various data, such as a device for preventing a key from being locked in the vehicle installed in the controller 10, and to achieve high-speed and automatic access to programs or data during the operation of the controller 10. The memory 11 may include a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium capable of carrying or storing data.

[0104] In some embodiments of the present application, the memory 11 may also be an external memory and / or an internal memory of the controller 10. Furthermore, the memory 11 may be a memory in a physical form, such as a memory stick, a TF card (Trans-flash Card), and the like.

[0105] In some embodiments of the present application, the processor 12 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor 12 is the computing core and control center of the controller 10, and uses various interfaces and lines to connect various parts of the entire controller 10, and calls the data stored in the memory 11 to execute various functions of the controller 10 and process data, such as executing the function of preventing the key from accidentally locking the vehicle.

[0106] In some embodiments of the present application, the processor 12 is used to obtain the operating system of the controller 10 and various installed applications. For example, the processor 12 obtains a program for preventing the key from being accidentally locked in the vehicle to implement the method for preventing the key from being accidentally locked in the vehicle using the above embodiment, for example Figure 2 Steps shown.

[0107] In some embodiments of the present application, the controller 10 may also include a power supply (not shown) for supplying power to each component. Preferably, the power supply may be logically connected to the processor 12 through a power management device, so that the power management device can manage charging, discharging, and power consumption. The power supply may also include one or more DC or AC power supplies, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The controller 10 may also include a Bluetooth module, a Wi-Fi module, etc., which will not be repeated here.

[0108] In some embodiments of the present application, if the modules / submodules integrated in the controller 10 are implemented in the form of software functional submodules and sold or used as independent workpieces, they can be stored in a storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also instruct the relevant hardware to complete through computer-readable instructions. The computer-readable instructions can be stored in a storage medium. When the computer-readable instructions are obtained by the processor 12, the above-mentioned Figure 2 The steps of each method embodiment are shown.

[0109] In some embodiments of the present application, the computer-readable instructions may include computer-readable instruction codes, which may be in source code form, object code form, accessible files, or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer-readable instruction code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, and read-only memory (ROM).

[0110] The memory 11 in the controller 10 stores a plurality of instructions to implement a method for preventing a key from being accidentally locked in a vehicle, and the processor 12 may obtain the plurality of instructions to implement the method for preventing a key from being accidentally locked in a vehicle of the above embodiment.

[0111] Specifically, the specific implementation method of the processor 12 for the above instructions can refer to Figure 2 The description of the relevant steps in the corresponding embodiments will not be repeated here.

[0112] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules is only a logical function division, and there may be other division methods in actual implementation.

[0113] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0114] Each functional module in each embodiment of the present application can be integrated into a processing submodule, or each submodule can exist physically separately, or two or more submodules can be integrated into one submodule. The above-mentioned integrated submodule can be implemented in the form of hardware or in the form of hardware plus software functional modules.

[0115] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present application is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any attached figure mark in the claims should not be regarded as limiting the claims involved.

[0116] In addition, it is obvious that the word "comprising" does not exclude other submodules or steps, and the singular does not exclude the plural. The multiple submodules or devices stated in this application can also be implemented by one submodule or device through software or hardware.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A method for preventing a key from being accidentally locked in a vehicle, characterized in that: The vehicle includes a controller, a signal transceiver, and a smart key, and the method includes: If the controller completes the vehicle locking operation and window raising operation based on the locking signal transmitted by the smart key, the signal transceiver is driven to transmit a first wireless signal, and a second wireless signal transmitted by the smart key based on the first wireless signal is received; The controller determines, according to the second wireless signal, whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal; If the smart key transmitting the second wireless signal is the smart key transmitting the locking signal, the controller determines whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal; If the smart key transmitting the second wireless signal is located in the vehicle, the controller controls the door to be unlocked and / or controls the window to be lowered to a preset height.

2. The method for preventing a key from being accidentally locked in a vehicle according to claim 1, characterized in that: The locking signal includes a first key ID, the second wireless signal includes a second key ID, and determining whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal according to the second wireless signal includes: Compare the first key ID with the second key ID; If the first key ID is the same as the second key ID, it is determined that the smart key transmitting the second wireless signal is the smart key transmitting the locking signal.

3. The method for preventing a key from being accidentally locked in a vehicle according to claim 1, characterized in that: The method further comprises: The electric field strength of the first wireless signal is measured by the smart key, wherein the second wireless signal includes the electric field strength of the first wireless signal.

4. The method for preventing a key from being accidentally locked in a vehicle according to claim 3, characterized in that: The step of determining whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal comprises: Comparing the electric field strength of the first wireless signal with a preset strength range; If the electric field strength of the first wireless signal is within the strength range, it is determined that the smart key that transmits the second wireless signal is located in the vehicle.

5. The method for preventing a key from being accidentally locked in a vehicle according to claim 3, characterized in that: The vehicle includes a plurality of signal transceiver devices, and the plurality of signal transceiver devices are installed at different positions of the vehicle, and determining whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal includes: Comparing the electric field strength of the first wireless signal sent by each signal transceiver device with a preset strength range corresponding to each signal transceiver device; If the electric field strength of the first wireless signal sent by each signal transceiver is within the strength range corresponding to each signal transceiver, it is determined that the smart key that transmits the second wireless signal is located in the vehicle.

6. The method for preventing a key from being accidentally locked in a vehicle according to claim 1, characterized in that: If the controller controls the vehicle door to be unlocked, the method further includes: The controller detects whether the vehicle door is opened within a preset time period; If the vehicle door is not opened within a preset time period, the controller turns off a preset automatic relocking function of the vehicle.

7. The method for preventing a key from being accidentally locked in a vehicle according to claim 1, characterized in that: After determining that the smart key transmitting the second wireless signal is located in the vehicle, the method further includes: The controller executes a preset early warning reminder operation to remind the user to take away the smart key left in the vehicle.

8. A device for preventing a key from being accidentally locked in a vehicle, characterized in that: The vehicle includes a signal transceiver and a smart key, and the device includes: A driving module, configured to drive the signal transceiver to transmit a first wireless signal and receive a second wireless signal transmitted by the smart key based on the first wireless signal to complete the vehicle locking operation and window raising operation based on the locking signal transmitted by the smart key; A first determination module, configured to determine, according to the second wireless signal, whether the smart key transmitting the second wireless signal is the smart key transmitting the locking signal; a second determination module, configured to determine whether the smart key transmitting the second wireless signal is located in the vehicle according to the second wireless signal if the smart key transmitting the second wireless signal is the smart key transmitting the locking signal; The unlocking module is used to control the unlocking of the vehicle door and / or the lowering of the vehicle window to a preset height if the smart key that transmits the second wireless signal is located in the vehicle.

9. A controller, characterized in that: The controller includes: a memory storing computer-readable instructions; and a processor executing the computer-readable instructions stored in the memory to implement the method for preventing a key from being accidentally locked in a vehicle as claimed in any one of claims 1 to 7.

10. A vehicle, characterized in that: The vehicle comprises the controller as claimed in claim 9, a signal transceiver, and a smart key.

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