Vehicle locking processing method and device and electronic equipment

Abstract

The invention provides a vehicle locking processing method and device and electronic equipment, and relates to the technical field of intelligent cabins, and the method comprises the steps: when receiving a vehicle locking signal, pausing vehicle locking processing of a vehicle, triggering a signal generator of the vehicle to emit an ultrasonic positioning signal, and triggering a signal receiver of the vehicle to receive an ultrasonic return signal; wherein the ultrasonic return signal is a signal transmitted when the mobile phone receives the ultrasonic positioning signal; judging whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal; if yes, reminding that the mobile phone is left in the vehicle according to a preset mode; and locking the vehicle in response to the pause of the locking processing of the vehicle or the absence of the mobile phone in the vehicle. The problem that the mobile phone is lost when the vehicle is locked can be effectively relieved through ultrasonic detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent cockpit, in particular to a vehicle locking processing method and device and electronic equipment. BACKGROUND

[0002] At present, the related technology proposes that, in order to solve the problem of passengers forgetting mobile phones when getting off the vehicle, whether the mobile phone is in the vehicle can be detected through the charging state of the vehicle radio panel, and when the mobile phone is forgotten, a voice broadcast is used for reminding, but the above-mentioned scheme needs to fix the detection position in the wireless charging panel area, and the mobile phone itself needs to have wireless charging function, so the hardware requirements of the vehicle and the mobile phone are high, and the implementation has certain limitations. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a vehicle locking processing method, device and electronic equipment, which can effectively alleviate the problem of mobile phone left behind when locking the vehicle without increasing the hardware cost of the vehicle and the mobile phone.

[0004] In a first aspect, the present application provides a vehicle locking processing method, which comprises: when a locking signal is received, suspending the locking processing of the vehicle, triggering the signal generator of the vehicle to emit an ultrasonic positioning signal, and triggering the signal receiver of the vehicle to receive an ultrasonic return signal; wherein the ultrasonic return signal is a signal emitted by the mobile phone when receiving the ultrasonic positioning signal; determining whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal; if so, reminding the mobile phone left in the vehicle in a preset manner; in response to the end of the suspension of the locking processing of the vehicle or the mobile phone not being in the vehicle, performing the locking processing on the vehicle.

[0005] In an embodiment, the vehicle is configured with at least one set of loudspeakers and microphones, and the loudspeakers and microphones in each set are located at the same position of the vehicle; the loudspeakers are used to perform the function of the signal generator, and the microphones are used to perform the function of the signal receiver; the steps of triggering the signal generator of the vehicle to emit the ultrasonic positioning signal and triggering the signal receiver of the vehicle to receive the ultrasonic return signal comprise: triggering the loudspeakers of the vehicle to emit the ultrasonic positioning signal, and triggering the microphones of the vehicle to receive the ultrasonic return signal.

[0006] In an embodiment, the step of determining whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal comprises: determining the signal transmission time difference corresponding to a plurality of ultrasonic positioning signals according to the emission time of the ultrasonic positioning signal and the reception time of the ultrasonic return signal corresponding to each set of loudspeakers and microphones; inputting the plurality of signal transmission time differences into a preset positioning geometric model to determine the positional relationship between the mobile phone and the vehicle; the positional relationship includes the position of the mobile phone in the vehicle.

[0007] In an embodiment, the reminding the mobile phone left in the vehicle in a preset mode comprises: reminding the mobile phone left in the vehicle by one or more of visual reminder, auditory reminder, tactile reminder and olfactory reminder through the multi-modal reminding mechanism.

[0008] In an embodiment, the method further comprises: monitoring the vehicle door switch signal and the pressure signal of the seat when the lock vehicle signal is received; if the vehicle door opening signal is received and the pressure signal of the seat is less than the preset pressure threshold, performing the step of triggering the signal generator of the vehicle to emit the ultrasonic positioning signal.

[0009] In an embodiment, the step of determining whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal comprises: if each signal receiver receives the ultrasonic return signal and the time interval between the emission time of the ultrasonic positioning signal and the reception time of the ultrasonic return signal is less than the preset time threshold, determining that the mobile phone is in the vehicle.

[0010] In an embodiment, the step of determining the signal transmission time difference corresponding to the plurality of ultrasonic positioning signals according to the emission time of the ultrasonic positioning signal and the reception time of the ultrasonic return signal corresponding to each group of loudspeakers and microphones comprises: determining half of the time interval between the emission time of the ultrasonic positioning signal emitted by the loudspeaker and the reception time of the ultrasonic return signal received by the microphone as the signal transmission time difference corresponding to the ultrasonic positioning signal.

[0011] In an embodiment, the step of determining the positional relationship between the mobile phone and the vehicle according to the plurality of signal transmission time differences input into the preset positioning geometric model comprises: obtaining a set of loudspeaker coordinate information of each loudspeaker in the vehicle; determining the straight line distance information between the corresponding loudspeaker and the mobile phone as the product of the signal transmission time difference and the signal transmission speed; performing model updating processing on the preset initial positioning geometric model by using the set of loudspeaker coordinate information and the straight line distance information to obtain a target positioning geometric model; performing solving processing on the target positioning geometric model by using a multi-lateral positioning algorithm to obtain the positional relationship between the mobile phone and the vehicle.

[0012] In a second aspect, an embodiment of the present invention further provides a vehicle locking processing device, the device comprising: a signal transmission module, which, when receiving a vehicle locking signal, suspends the vehicle locking process, triggers the vehicle's signal generator to emit an ultrasonic positioning signal, and triggers the vehicle's signal receiver to receive an ultrasonic return signal; wherein the ultrasonic return signal is a signal emitted by a mobile phone when receiving an ultrasonic positioning signal; a detection module, which determines whether the mobile phone is in the vehicle based on the ultrasonic positioning signal and the ultrasonic return signal; a multimodal reminder module, which, if the judgment result of the detection module is yes, reminds the user that the mobile phone is left in the vehicle in a preset manner; and a vehicle locking module, which locks the vehicle in response to the end of the suspension of the vehicle locking process or the absence of the mobile phone in the vehicle.

[0013] In a third aspect, an embodiment of the present invention further provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement any one of the methods provided in the first aspect.

[0014] The embodiments of the present invention bring the following beneficial effects: An embodiment of the present invention provides a vehicle locking processing method, device, and electronic equipment. When locking the vehicle, the method first transmits an ultrasonic positioning signal and receives an ultrasonic return signal through the vehicle's signal generator and signal receiver, thereby determining whether a mobile phone is left in the vehicle. Compared with the solution in the related art that detects whether the mobile phone is in the vehicle by the charging status of the vehicle's radio board, the embodiment of the present invention can effectively alleviate the problem of mobile phones being left behind when locking the vehicle through ultrasonic detection without increasing the hardware cost of the vehicle and the mobile phone.

[0015] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purposes and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1A flowchart of a vehicle locking processing method provided by an embodiment of the present application is shown in the figure; Figure 2 A detailed flowchart of a vehicle locking processing method provided by an embodiment of the present application is shown in the figure; Figure 3 A flowchart of another vehicle locking processing method provided by an embodiment of the present application is shown in the figure; Figure 4 A structural diagram of a vehicle locking processing device provided by an embodiment of the present application is shown in the figure; Figure 5 A structural diagram of an electronic device provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described below in connection with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0020] At present, with the rapid popularization of intelligent automobile technology and the continuous expansion of Internet of Vehicles application, modern automobiles are equipped with more and more high-end electronic devices and intelligent interaction systems, realizing various functions such as in-vehicle information entertainment, safety monitoring, and environmental perception. However, even under the background of continuous technological progress, the situation of passengers forgetting their mobile phones when getting off the car still occurs frequently, which not only brings inconvenience to passengers, but also may cause safety hazards or property loss.

[0021] The prior art proposes that a car equipped with a wireless charging panel can detect whether a mobile phone is in the car through the charging state. When the car door is opened, if the passenger's mobile phone is still charging on the wireless charging panel, the mobile phone forgetting reminder function is triggered, and the car will make a voice broadcast to remind the passenger to carry the mobile phone. However, this method has a location limitation. The method widely used on the market at present, which detects whether a mobile phone is in the car through the charging state of a wireless charging panel, has a detection position fixed only in the wireless charging panel area. When the mobile phone is placed in other positions in the car, such as seats, storage compartments, etc., this method cannot effectively detect the presence of the mobile phone, and thus cannot trigger the reminder function.

[0022] Based on this, the vehicle locking processing method, device, and electronic device provided by the embodiments of the present application can effectively alleviate the problem of mobile phone forgetting when locking the car through ultrasonic detection without increasing the hardware cost of the vehicle and the mobile phone.

[0023] Embodiment one: Reference is made to Figure 1A flowchart of a vehicle locking process method is shown, which can be executed by a controller of the vehicle, and mainly includes the following steps S102-S108: Step S102, when receiving a vehicle locking signal, suspending the vehicle locking process, triggering the signal generator of the vehicle to emit an ultrasonic positioning signal, and triggering the signal receiver of the vehicle to receive an ultrasonic return signal; wherein the ultrasonic return signal is a signal emitted by the mobile phone when receiving the ultrasonic positioning signal.

[0024] The vehicle locking signal is a signal sent by the passenger when getting off the vehicle, and the vehicle will usually perform a power-off operation after receiving the vehicle locking signal, but in the embodiment of the present application, the power-off process needs to be suspended (i.e., the vehicle locking process is suspended), so that the vehicle remains in a low-power state, and the signal generator emits an ultrasonic positioning signal, wherein the signal generator of the vehicle can include: a vehicle-mounted speaker, a digital horn, an array speaker, a buzzer or a piezoelectric ceramic sheet, etc. In an embodiment, when the passenger gets off the vehicle and presses the vehicle locking key, the signal generator will send an ultrasonic positioning signal to the passenger's mobile phone, and when the passenger's mobile phone is left in the vehicle, the mobile phone will emit an ultrasonic return signal when receiving the ultrasonic positioning signal, and the signal receiver of the vehicle will receive the ultrasonic return signal.

[0025] Step S104, determining whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal.

[0026] In an embodiment, whether the mobile phone is in the vehicle can be determined according to whether the mobile phone can be continuously monitored (i.e., in the reachable area of each ultrasonic positioning signal in the vehicle), or a decision threshold is set, which can include a time threshold, a signal power threshold and a distance threshold, etc. The time threshold is used to represent the time interval between the ultrasonic positioning signal sending and the ultrasonic return signal receiving, the signal power threshold needs to be pre-set by the material of the vehicle, and the distance threshold needs to be determined by the longest diagonal length of the vehicle cabin and the tolerance.

[0027] Step S106, if yes, reminding the mobile phone left in the vehicle in a preset manner.

[0028] In an embodiment, a specific prompt tone or voice broadcast (for example, you may have forgotten your mobile phone in the car, please check the co-pilot seat) can be played through the in-vehicle audio to remind the passenger's mobile phone left in the vehicle, or a high-priority reminder can be sent to the passenger's mobile phone through short message, email and instant messaging robot, and in another embodiment, if the vehicle is equipped with a smart car machine, the passenger can also be prompted by the car machine voice assistant to pick up the left mobile phone.

[0029] Step S108, in response to the end of the suspension of the vehicle locking process or the mobile phone not being in the vehicle, performing the vehicle locking process on the vehicle.

[0030] In this step, if the passenger's mobile phone is not left in the car, or after detecting that the mobile phone is left in the car, if the passenger has successfully retrieved the mobile phone according to the reminder and manually turned off the pause lock mode, or sent an instruction to the vehicle's control system through the mobile phone to make the vehicle turn off the pause lock mode according to the instruction, the vehicle will continue to power off and execute the car locking operation.

[0031] In summary, the vehicle locking method provided by the embodiments of the present invention, when locking the vehicle, first transmits an ultrasonic positioning signal and receives an ultrasonic return signal through the vehicle's signal generator and signal receiver to determine whether a mobile phone has been left inside the vehicle. This method can utilize the vehicle's existing signal generator and signal receiver for ultrasonic detection without adding additional hardware costs. Compared to related art solutions that detect whether a mobile phone is inside the vehicle based on the charging status of the onboard radio board, the embodiments of the present invention can effectively alleviate the problem of mobile phones being left behind when locking the vehicle through ultrasonic detection without increasing the hardware costs of the vehicle or the mobile phone. For example, ultrasonic detection can be used to determine whether the mobile phone can be continuously monitored or to set a decision threshold to determine whether the mobile phone is inside the vehicle. This can adapt to various vehicle-specific mobile phone left behind detection methods when locking the vehicle. Various reminder methods, such as prompt sounds, voice broadcasts, text message reminders, and intelligent vehicle-machine interaction, can also effectively alleviate the problem of mobile phones being left behind when locking the vehicle.

[0032] Example 2: The existing technology that detects whether a mobile phone is in the car by the charging status of the vehicle-mounted radio board still has problems such as limited functions and a single reminder method. Specifically, the following are: 1. The above-mentioned existing technology solution relies on the mobile phone to have a wireless charging function. If the passenger uses a mobile phone without a wireless charging function, even if the mobile phone is placed in the wireless charging area, when the passenger forgets to bring the mobile phone, the mobile phone forgotten reminder function will not be triggered, which greatly limits the scope of application of this technology; 2. The reminder method is single: most existing systems mainly use voice broadcast for reminders. This single reminder method may not effectively attract the attention of the passengers in a noisy environment, and may be ignored by the passengers. At the same time, it also lacks a personalized and diversified interactive experience.

[0033] In one embodiment, see Figure 2 The specific flow chart of a vehicle locking processing method shown in FIG. 1 is a flow chart of a vehicle locking processing method. The embodiment of the present invention also provides an implementation method for detecting and reminding a lost mobile phone when the vehicle is locked. The specific method is shown in (1) to (4) below: (1) After receiving the lock vehicle request, the vehicle suspends the power-off process, collects the mobile phone vehicle door opening signal and seat pressure signal, detects whether the vehicle door is opened and whether the passenger gets up and leaves the seat, if the vehicle door is opened and the passenger gets up and leaves the seat, the next step is entered, otherwise the power-off process is continued to be suspended, the low-power consumption state of the vehicle is maintained, and further detection results are waited.

[0034] That is, when the lock vehicle signal is received, the state of the passenger needs to be detected, specifically, when the lock vehicle signal is received, the vehicle door switch signal and the seat pressure signal are monitored, if the vehicle door opening signal is received and the seat pressure signal is less than the preset pressure threshold, it is indicated that the passenger is leaving the vehicle, at this time, the step of triggering the signal generator of the vehicle to emit an ultrasonic positioning signal needs to be performed, that is, when locking the vehicle, the power-off process is suspended, the mobile phone vehicle door opening signal and the seat pressure signal are collected, if the seat pressure signal is less than the preset pressure threshold, it is indicated that the passenger has got up and left the seat, if the vehicle door opening signal is monitored, it is indicated that the passenger has prepared to open the door and leave the vehicle, when the above two conditions are met, whether the passenger's mobile phone is left in the vehicle needs to be detected.

[0035] (2) After detecting that the vehicle door is opened and the passenger gets up and leaves the seat, ultrasonic signals are sent by multiple speakers in the vehicle, the multiple speakers work cooperatively to cover the entire vehicle cabin, to ensure that the mobile phone can receive the ultrasonic signal no matter where it is in the vehicle, after the ultrasonic signal is received by the built-in microphone of the mobile phone, the ultrasonic signal is returned to the vehicle-mounted system, wherein the vehicle is configured with at least one set of speakers and microphones, the speakers and microphones in each set are located at the same position of the vehicle; the speakers are used to perform the function of the signal generator, and the microphones are used to perform the function of the signal receiver, the vehicle-mounted system includes a signal processing and positioning algorithm module and a left-behind judgment module, the signal processing and positioning algorithm module is used to analyze the received signal by using an advanced signal processing algorithm (including a signal transmission time difference calculation model and a multilateral positioning algorithm), to calculate the accurate position of the mobile phone in the vehicle; the left-behind judgment module is used to judge whether the passenger forgets the mobile phone based on the mobile phone positioning information and the in-vehicle state data (such as the vehicle door state, the seat occupancy, etc.), for example, the signal processing algorithm calculates the specific position of the mobile phone in the vehicle, the vehicle door is in an open state, and the seat is in an unoccupied state, it is determined that the passenger forgets the mobile phone.

[0036] In an embodiment, when the lock vehicle signal is received, the state of the passenger is detected, if it is determined that the passenger wants to leave the vehicle, the speaker of the vehicle is triggered to emit an ultrasonic positioning signal, and the microphone of the vehicle is triggered to receive an ultrasonic return signal.

[0037] Specifically, after the speaker transmits the ultrasonic positioning signal, the mobile phone collects the ultrasonic positioning signal in real time through the built-in microphone, and when receiving the ultrasonic positioning signal, sends an ultrasonic return signal to the speaker that transmits the ultrasonic positioning signal. The ultrasonic return signal is received by the microphone set at the same position as the speaker.

[0038] (3) The vehicle-mounted system processes the ultrasonic signal returned by the mobile phone to determine whether the mobile phone is in the car.

[0039] In one embodiment, the time interval from the mobile phone to each signal receiver can be calculated based on the ultrasonic positioning signal and the ultrasonic return signal, and the calculated time interval can be compared with a preset time threshold to determine whether the mobile phone is in the car. For example, if each signal receiver receives the ultrasonic return signal, and the time interval between the transmission time of the ultrasonic positioning signal and the reception time of the ultrasonic return signal is less than the preset time threshold, it is determined that the mobile phone is in the car; if any signal receiver does not receive the ultrasonic return signal, or the time interval between the transmission time of the ultrasonic positioning signal and the reception time of the ultrasonic return signal is not less than the preset time threshold, it is determined that the mobile phone is not in the car.

[0040] (4) After determining that a mobile phone is in the car, the intelligent reminder solution is activated to remind the occupants through multiple aspects such as vision, hearing, touch, and smell.

[0041] In one embodiment, a multimodal reminder mechanism is used to remind the user that the mobile phone is left in the vehicle by providing one or more of visual reminders, auditory reminders, tactile reminders, and olfactory reminders. Specifically, the multimodal reminder mechanism includes the following (1) to (4): (1) Visual reminder: Display a prominent icon or pop-up window on the vehicle's central control screen, instrument panel, or other locations; or use methods such as flashing or color changes in the vehicle's lights to attract the attention of passengers. In one embodiment, if the vehicle's rearview mirror is embedded with an OLED, a streaming media rearview mirror can display dynamic icons or text and flash reminders, or use a suspended particle device to darken the vehicle's side windows or display text, so that passengers can notice the visual reminder information even after leaving the vehicle.

[0042] (2) Auditory reminder: The vehicle voice system broadcasts a reminder message or emits a warning sound; at the same time, the cloud reminds the mobile phone app to emit a ringtone or prompt sound, forming a linkage effect. In one embodiment, multiple devices can also be linked, and the smart watch, headphones, speakers, etc. that can be connected via Bluetooth wirelessly can simultaneously emit a prompt sound, so that the auditory reminder can also be used when the mobile phone is muted.

[0043] (3) Tactile reminder: informing the passenger through the steering wheel, seat vibration feedback; mobile phone vibration reminder as a supplement, in addition, according to the actual configuration of the vehicle, through the safety belt tightening, shaking, or the micro-vibration of the door handle, the passenger is given a tactile reminder.

[0044] (4) Olfactory reminder: combined with the car interior fragrance system, release a specific smell as an auxiliary reminder means, in one embodiment, if there are pregnant women, the elderly, children and other special groups in the car, the olfactory reminder function can be manually closed by the car machine, and other ways are used for olfactory reminder, in another embodiment, if the smell of the fragrance system is less than the preset threshold, the passenger needs to be warned to replace the smell bomb.

[0045] In summary, the present application can use a variety of reminder methods, use visual, auditory, tactile, olfactory and other combined reminder mechanisms to ensure that the passenger's attention can be awakened in time and effectively in various use scenarios, thereby greatly reducing the possibility of the passenger forgetting the mobile phone, and solving the problems of limited detection range, limited function and single reminder method of the existing in-vehicle mobile phone positioning and reminding system.

[0046] Example three: On the basis of the foregoing embodiment two, the present application embodiment provides a specific example of determining the specific positional relationship between the mobile phone and the vehicle by using ultrasonic signals, referring to Figure 3 The flowchart of another vehicle locking processing method is shown in FIG. 3, which mainly includes the following steps S302 to S304: Step S302, according to the emission time of the ultrasonic positioning signal and the receiving time of the ultrasonic return signal corresponding to each group of loudspeakers and microphones, the signal transmission time difference corresponding to the ultrasonic positioning signal is determined.

[0047] In one embodiment, since the ultrasonic positioning signal emitted by the loudspeaker is transmitted to the mobile phone at the same time as the ultrasonic return signal transmitted by the mobile phone is transmitted to the microphone, half of the time interval between the emission time of the ultrasonic positioning signal emitted by the loudspeaker and the receiving time of the ultrasonic return signal received by the microphone can be determined as the signal transmission time difference corresponding to the ultrasonic positioning signal.

[0048] Further, if there is a certain height difference between the speaker and the microphone during installation, that is, the straight-line distance between the emitting end of the speaker and the receiving end of the microphone and the mobile phone is different, a fixed coordinate position signal emission source is needed to replace the mobile phone during actual measurement to perform a correction test to obtain a compensation value, so that the calculation process of the signal transmission time difference is simplified by the compensation value, and the time interval between the emission time of the ultrasonic positioning signal emitted by the speaker and the reception time of the ultrasonic return signal received by the microphone is divided by two after the compensation value is subtracted, to obtain the signal transmission time difference corresponding to the ultrasonic positioning signal.

[0049] In step S304, the position relationship between the mobile phone and the vehicle is determined according to the plurality of signal transmission time differences input into the preset positioning geometric model, wherein the position relationship includes the position of the mobile phone in the vehicle.

[0050] In an embodiment, the straight-line distance information between the corresponding speaker and the mobile phone can be determined by multiplying the signal transmission time difference and the signal transmission speed, and then the initial positioning geometric model is updated by using the speaker coordinate information set and the straight-line distance information to obtain the target positioning geometric model, and finally the position relationship between the mobile phone and the vehicle is obtained by solving the target positioning geometric model through the multilateral positioning algorithm.

[0051] In another embodiment, the sound wave propagation delay can also be calculated according to the time difference between the vehicle-mounted signal emission time (or signal time mark) and the mobile phone reception time, and then the position of the mobile phone in the vehicle is calculated by constructing a positioning geometric model and using a multilateral positioning algorithm with signal data from different vehicle-mounted speakers, wherein the sound wave propagation delay is caused by the loss of ultrasonic wave propagation in the medium.

[0052] In actual application, the temperature, humidity, and pressure difference between the current atmospheric pressure and the standard atmospheric pressure can be collected by a sensor set, and then the compensation value of the loss is obtained by iterative analysis of the temperature, humidity, and pressure difference by using a dispersion-attenuation joint model, and the compensation value and the plurality of signal transmission time differences are input into the preset positioning geometric model, so as to avoid the positioning inaccuracy caused by the loss of ultrasonic wave propagation in the medium.

[0053] In summary, the present application can realize accurate positioning of the mobile phone in the vehicle by emitting ultrasonic signals from the in-vehicle speaker, receiving and returning signals by the mobile phone microphone, and using the delay, attenuation, and multipath effect of sound wave propagation, and through advanced signal processing and positioning algorithm.

[0054] Embodiment four: For the vehicle locking processing method provided by the foregoing embodiments, an embodiment of the present application provides a vehicle locking processing device, which is described with reference toFigure 4 Fig. 1 shows a schematic diagram of a vehicle locking processing device according to an embodiment of the present application, which comprises the following parts: The signal transmission module 402 suspends the vehicle locking processing when receiving the locking signal, triggers the signal generator of the vehicle to emit an ultrasonic positioning signal, and triggers the signal receiver of the vehicle to receive an ultrasonic return signal; wherein the ultrasonic return signal is a signal emitted by the mobile phone when receiving the ultrasonic positioning signal. The detection module 404 determines whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal. The multi-modal reminding module 406 reminds the mobile phone left in the vehicle in a preset manner if the detection module determines that the mobile phone is in the vehicle. The locking module 408 performs the vehicle locking processing in response to the end of the suspension of the vehicle locking processing or the mobile phone not being in the vehicle.

[0055] The vehicle locking processing device provided by the embodiments of the present application can alleviate the problem of the mobile phone left in the vehicle during locking through ultrasonic detection.

[0056] In an embodiment, the vehicle is configured with at least one set of speakers and microphones, and the speakers and microphones in each set are located at the same position of the vehicle; the speakers are used to perform the function of the signal generator, and the microphones are used to perform the function of the signal receiver; and the signal transmission module 402 is further configured to trigger the speakers of the vehicle to emit the ultrasonic positioning signal, and trigger the microphones of the vehicle to receive the ultrasonic return signal.

[0057] In an embodiment, the detection module 404 is further configured to determine a signal transmission time difference corresponding to the plurality of ultrasonic positioning signals according to the emission time of the ultrasonic positioning signal and the reception time of the ultrasonic return signal corresponding to each set of speakers and microphones, and determine the positional relationship between the mobile phone and the vehicle by inputting the plurality of signal transmission time differences into a preset positioning geometric model; the positional relationship includes the position of the mobile phone in the vehicle.

[0058] In an embodiment, the multi-modal reminding module 406 is further configured to remind the mobile phone left in the vehicle through a multi-modal reminding mechanism, such as one or more of visual reminding, auditory reminding, tactile reminding, and olfactory reminding.

[0059] In an embodiment, the signal transmission module 402 is further configured to monitor the door opening signal and the pressure signal of the seat when receiving the locking signal; if the door opening signal is received and the pressure signal of the seat is less than a preset pressure threshold, the step of triggering the signal generator of the vehicle to emit the ultrasonic positioning signal is performed.

[0060] In one embodiment, the detection module 404 is further configured to determine that the mobile phone is in the vehicle if each of the signal receivers receives the ultrasonic return signal and a time interval between a time of emitting the ultrasonic positioning signal and a time of receiving the ultrasonic return signal is less than a preset time threshold.

[0061] In one embodiment, the detection module 404 is further configured to determine that the mobile phone is in the vehicle if each of the signal receivers receives the ultrasonic return signal and a time interval between a time of emitting the ultrasonic positioning signal and a time of receiving the ultrasonic return signal is less than a preset time threshold.

[0062] In one embodiment, the detection module 404 is further configured to obtain a set of speaker coordinate information of each of the speakers in the vehicle; determine a straight-line distance information between the corresponding speaker and the mobile phone by multiplying the signal transmission time difference and the signal transmission speed; perform model updating processing on a preset initial positioning geometric model by using the set of speaker coordinate information and the straight-line distance information to obtain a target positioning geometric model; and perform solving processing on the target positioning geometric model by using a multilateral positioning algorithm to obtain the positional relationship between the mobile phone and the vehicle.

[0063] The device provided by the embodiments of the present application has the same implementation principle and technical effects as the foregoing method embodiments. For brevity, the part not mentioned in the device embodiment part can be referred to the corresponding content in the foregoing method embodiments.

[0064] The electronic device provided by the embodiments of the present application includes a processor and a storage device. The storage device stores a computer program. When the computer program is executed by the processor, the method according to any one of the embodiments described above is executed.

[0065] Figure 5 The electronic device provided by the embodiments of the present application includes a processor and a storage device. The storage device stores a computer program. When the computer program is executed by the processor, the method according to any one of the embodiments described above is executed.

[0066] The storage device can include a high-speed random access memory (RAM) and can also include a non-volatile memory such as at least one disk memory. The communication interface can be wired or wireless. The system network element and at least one other network element can be connected through the communication interface. The communication connection can be implemented by using the Internet, a wide area network, a local area network, a metropolitan area network, etc.

[0067] The bus 52 can be an ISA bus, a PCI bus, an EISA bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, Figure 5 Only one bidirectional arrow is shown in the figure, but this does not mean that there is only one bus or only one type of bus.

[0068] The memory 51 is configured to store a program, and the processor 50 executes the program after receiving an execution instruction. The method executed by the device for defining the flow process according to any one of the embodiments of the application can be applied to the processor 50 or implemented by the processor 50.

[0069] The processor 50 can be an integrated circuit chip with processing capability. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 50 or an instruction in the form of software. The processor 50 described above can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), and the like; or can be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. Each method, step and logic block diagram disclosed in the embodiments of the application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiments of the application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, or other mature storage media in the art. The storage medium is located in the memory 51, and the processor 50 reads the information in the memory 51 and combines the hardware to complete the steps of the above method.

[0070] The computer program product of the readable storage medium provided by the embodiments of the application includes a computer readable storage medium storing program codes, and the program codes include instructions for executing the method described in the foregoing method embodiments. For specific implementation, reference can be made to the foregoing method embodiments, which will not be described here.

[0071] If the functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or the portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, electronic device, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include various media that can store program code, such as USB flash drives, mobile hard drives, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0072] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A method for handling vehicle lock, characterized in that: The method comprises: When a vehicle lock signal is received, the vehicle lock process is suspended, and the vehicle's signal generator is triggered to transmit an ultrasonic positioning signal, and the vehicle's signal receiver is triggered to receive an ultrasonic return signal; wherein the ultrasonic return signal is a signal transmitted by the mobile phone when the mobile phone receives the ultrasonic positioning signal; determining whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal; If yes, reminding the user that the mobile phone is left in the vehicle in a preset manner; In response to the end of the suspension of the vehicle locking process or the absence of the mobile phone in the vehicle, the vehicle is locked.

2. The method according to claim 1, characterized in that The vehicle is configured with at least one set of speakers and microphones, wherein the speakers and microphones in each set are located at the same position of the vehicle; the speakers are used to perform the function of the signal generator, and the microphones are used to perform the function of the signal receiver; The steps of triggering the signal generator of the vehicle to emit an ultrasonic positioning signal and triggering the signal receiver of the vehicle to receive an ultrasonic return signal include: triggering the speaker of the vehicle to emit an ultrasonic positioning signal and triggering the microphone of the vehicle to receive an ultrasonic return signal.

3. The method according to claim 2, characterized in that The step of determining whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal includes: Determine the signal transmission time difference corresponding to the plurality of ultrasonic positioning signals according to the transmission time of the ultrasonic positioning signals and the reception time of the ultrasonic return signals respectively corresponding to the plurality of groups of the speakers and the microphones; The positional relationship between the mobile phone and the vehicle is determined based on the input of a plurality of signal transmission time differences into a preset positioning geometric model; the positional relationship includes the position of the mobile phone in the vehicle.

4. The method according to claim 1, wherein Reminding the user that the mobile phone is left in the vehicle in a preset manner includes: Through a multimodal reminder mechanism, the user is reminded that the mobile phone is left in the vehicle by one or more of visual reminder, auditory reminder, tactile reminder and olfactory reminder.

5. The method according to claim 1, wherein The method further comprises: When receiving the vehicle lock signal, the door switch signal and the seat pressure signal are monitored; If a door opening signal is received and the seat pressure signal is monitored to be less than a preset pressure threshold, the step of triggering the signal generator of the vehicle to transmit an ultrasonic positioning signal is performed.

6. The method according to claim 1, characterized in that The step of determining whether the mobile phone is in the vehicle according to the ultrasonic positioning signal and the ultrasonic return signal includes: If each of the signal receivers receives the ultrasonic return signal, and the time interval between the emission time of the ultrasonic positioning signal and the reception time of the ultrasonic return signal is less than a preset time threshold, it is determined that the mobile phone is in the car.

7. The method according to claim 3, characterized in that The step of determining the signal transmission time difference corresponding to the plurality of ultrasonic positioning signals according to the transmission time of the ultrasonic positioning signals and the reception time of the ultrasonic return signals respectively corresponding to the plurality of groups of the speakers and the microphones comprises: Half of the time interval between the emission time of the ultrasonic positioning signal emitted by the speaker and the reception time of the ultrasonic return signal received by the microphone is determined as the signal transmission time difference corresponding to the ultrasonic positioning signal.

8. The method according to claim 3, characterized in that The step of inputting a plurality of signal transmission time differences into a preset positioning geometric model to determine the positional relationship between the mobile phone and the vehicle includes: Obtaining a set of speaker coordinate information of each speaker in the vehicle; The product of the signal transmission time difference and the signal transmission speed is determined as the corresponding straight-line distance information between the speaker and the mobile phone; Using the loudspeaker coordinate information set and the straight-line distance information, a preset initial positioning geometric model is updated to obtain a target positioning geometric model; The target positioning geometric model is solved by a multilateral positioning algorithm to obtain the positional relationship between the mobile phone and the vehicle.

9. A vehicle locking processing device, characterized in that: The device comprises: a signal transmission module, which, upon receiving a vehicle locking signal, suspends the vehicle locking process, triggers the vehicle's signal generator to transmit an ultrasonic positioning signal, and triggers the vehicle's signal receiver to receive an ultrasonic return signal; wherein the ultrasonic return signal is a signal transmitted by the mobile phone upon receiving the ultrasonic positioning signal; a detection module, for determining whether the mobile phone is in the vehicle based on the ultrasonic positioning signal and the ultrasonic return signal; a multimodal reminder module, which, if the determination result of the detection module is yes, reminds the user that the mobile phone is left in the vehicle in a preset manner; The vehicle locking module locks the vehicle in response to the end of the suspension of the vehicle locking process or the absence of the mobile phone in the vehicle.

10. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement the method according to any one of claims 1 to 8.

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