Information prompting method, device, equipment, vehicle, medium and product

Abstract

The invention discloses an information prompting method, device and equipment, a vehicle, a medium and a product, and the method comprises the steps: carrying out the target detection of a cabin of the vehicle through a positioning module in response to the flameout of the vehicle, and obtaining the detection data; determining a detection result according to the detection data; and in response to opening of a main driving door of the vehicle, the projection effect of the projection module is controlled according to the detection result, and different projection effects correspond to different prompt information. By means of the mode, the most intuitive visual feedback can be provided at the moment when the user gets off the vehicle, it is guaranteed that prompt information and user actions are highly synchronized through the design, and hysteresis of information prompt can be effectively avoided.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, and particularly relates to an information prompting method, device, equipment, vehicle, medium and product. Background Technology

[0002] In the wave of automotive intelligence, cabin safety (e.g., preventing accidental locking of children or pets, and preventing forgotten items) is becoming increasingly prominent. Existing solutions, such as millimeter-wave radar and cabin cameras, as independent safety modules, have inherent flaws in their alert methods, such as delayed timing and easy overlooking. They cannot provide direct and effective intervention at the most critical moment when the user leaves the vehicle; in other words, the information alert methods in these technologies are lagging. Summary of the Invention

[0003] This application provides an information prompting method, apparatus, equipment, vehicle, medium, and product that can effectively avoid information prompting delays.

[0004] In a first aspect, embodiments of this application provide an information prompting method applied to an electronic device, wherein the electronic device is communicatively connected to a projection module installed in a vehicle, and the vehicle further includes a positioning module that emits a detection signal; the method includes: In response to the vehicle being turned off, the positioning module performs target detection on the vehicle's cabin to obtain detection data; Based on the detection data, the detection result is determined; In response to the opening of the driver's door of the vehicle, the projection effect of the projection module is controlled according to the detection result, and different projection effects correspond to different prompt messages; The detection results indicate at least one of the following: Vital signs were detected, or no vital signs were detected; The target item was detected, or the target item was not detected.

[0005] Secondly, embodiments of this application provide an information prompting device applied to an electronic device, wherein the electronic device is communicatively connected to a projection module installed in a vehicle, and the vehicle further includes a positioning module that emits a detection signal; the device includes: The first response module is used to respond to the vehicle being turned off by using the positioning module to detect targets in the vehicle's cabin and obtain detection data. The second response module is used to determine the detection result based on the detection data; The projection module is used to respond to the opening of the driver's door of the vehicle and control the projection effect of the projection module according to the detection result. Different projection effects correspond to different prompt information. The detection results indicate at least one of the following: Vital signs were detected, or no vital signs were detected; The target item was detected, or the target item was not detected.

[0006] Thirdly, embodiments of this application provide an electronic device, including: a processor and a memory storing computer program instructions; the processor, when executing the computer program instructions, implements the information prompting method as described in the first aspect.

[0007] Fourthly, embodiments of this application provide a vehicle that includes the electronic equipment described in the third aspect.

[0008] Fifthly, embodiments of this application provide a computer-readable storage medium storing computer program instructions, which, when executed by a processor, implement the information prompting method as described in the first aspect.

[0009] In a sixth aspect, embodiments of this application provide a computer program product in which instructions, when executed by a processor of an electronic device, cause the electronic device to perform the information prompting method as described in the first aspect.

[0010] In this embodiment, in response to the vehicle being turned off, the positioning module performs target detection in the vehicle's cabin to obtain detection data; based on the detection data, a detection result is determined; in response to the driver's side door opening, the projection effect of the projection module is controlled according to the detection result, with different projection effects corresponding to different prompts. Through this method, the most intuitive visual feedback can be provided the instant the user exits the vehicle. This design ensures a high degree of synchronization between the prompts and the user's actions, effectively avoiding information lag and improving the user experience. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a flowchart illustrating an information prompting method provided in an embodiment of this application; Figure 2a This is a schematic diagram of the hardware structure of the vehicle provided in the embodiments of this application; Figure 2b This is a schematic diagram of the preset coordinate system provided in the embodiments of this application; Figure 2cThis is a schematic diagram illustrating the identification principle of the positioning module provided in the embodiments of this application; Figure 2d This is a schematic diagram showing the positional relationship between the projection module, the door bottom panel, and the door provided in the embodiments of this application; Figure 2e This is a schematic diagram of the imaging unit provided in an embodiment of this application; Figure 2f This is a schematic diagram of the light source arrangement on the PCB board provided in the embodiments of this application; Figure 2g This is a front view of the three-group imaging unit provided in the embodiments of this application; Figure 2h This is a schematic diagram of a projection effect provided in an embodiment of this application; Figure 2i This is another schematic diagram of the projection effect provided in the embodiment of this application; Figure 2j This is another schematic diagram of the projection effect provided in the embodiment of this application; Figure 2k This is a schematic diagram of the control circuit provided in an embodiment of this application; Figure 2l This is a schematic diagram of the projection module structure provided in an embodiment of this application; Figure 2m This is another flowchart illustrating the information prompting method provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the information prompting device provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0013] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0014] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0015] In all specific embodiments of this application, when processing data related to user identity or characteristics, such as user information, user behavior data, user historical data, and user location information, user permission or consent is obtained first. Furthermore, the collection, use, and processing of this data comply with relevant laws, regulations, and standards. Additionally, when embodiments of this application require access to sensitive personal information, separate permission or consent from the user is obtained through pop-ups or redirects to confirmation pages. Only after obtaining the user's separate permission or consent is the necessary user-related data required for the proper functioning of these embodiments obtained.

[0016] To address the problems of the prior art, embodiments of this application provide an information prompting method, apparatus, device, vehicle, medium, and product. The information prompting method provided in this application embodiment will be described first below.

[0017] Figure 1 A flowchart illustrating an embodiment of the information prompting method provided in this application is shown. Figure 1 As shown in the embodiment of this application, the information prompting method is applied to an electronic device. The electronic device is communicatively connected to a projection module installed in a vehicle. The vehicle also includes a positioning module, which emits a detection signal. The method includes the following steps 101-103, wherein: Step 101: In response to the vehicle being turned off, the positioning module performs target detection on the vehicle's cabin to obtain detection data.

[0018] The positioning module can emit detection signals, such as radio waves. The positioning module may include an Ultra-Wide Band (UWB) chip, which transmits the detection signals. Target detection can be used to detect vital signs such as breathing and heartbeat in infants, pets, etc., within the cabin, and / or to detect signal-emitting objects such as car keys, mobile phones, etc. Alternatively, an Occupant Monitoring System (OMS) can be used to identify vital signs or objects within the vehicle through image processing technology.

[0019] When an engine shutdown signal is detected, the vehicle is determined to be off. In this case, the electronic equipment sends a command to the positioning module located in the vehicle, instructing it to enter detection mode and perform target detection in the vehicle's cabin. For example, it collects vital signs (to determine if there are any living beings in the cabin) and location data of target objects (to determine if there are any target objects in the cabin). This process is silently completed in the background while the user is packing their belongings and unfastening their seatbelt.

[0020] The probe data can be collected at preset intervals, such as once every 30 seconds or once every minute, without any limitation.

[0021] Step 102: Determine the detection result based on the detection data.

[0022] The electronic device analyzes the detection data collected by the positioning module to determine the detection result. The detection result indicates at least one of the following: (1) Vital signs were detected, or no vital signs were detected; (2) The target item is detected, or the target item is not detected.

[0023] The target items mentioned above may include items such as car keys and mobile phones.

[0024] The electronic device can analyze the detection data as it is collected to obtain a detection result, thus generating multiple detection results. Alternatively, it can calculate the average of the detection data collected within a first preset time period and determine the detection result based on the average calculation result. The specific method can be set according to the actual situation and is not limited here.

[0025] Step 103: In response to the opening of the driver's door of the vehicle, control the projection effect of the projection module according to the detection result, and different projection effects correspond to different prompt information.

[0026] "Driver's door open" can be considered a switch event that triggers the information prompt. The projection effect of the projection module can be controlled based on the detection result closest to the moment "driver's door open", or based on the detection result within a preset time period closest to the moment "driver's door open". For example, the preset time period can be 1 minute. If the detection results obtained within 1 minute are all the same, then one of these detection results can be selected to control the projection effect of the projection module.

[0027] When the driver's door is opened, the electronic equipment controls the projection module to project a corresponding message based on the detection results. Different detection results correspond to different detection effects, and different projection effects correspond to different prompts. Specifically, the message can be projected onto the ground next to the driver's door. The projection effect includes at least one of the following: a projected pattern, a projected color, and a projected flashing frequency. For example, if the detection result indicates that vital signs have been detected, the corresponding projection effect could be: a red light with a flashing frequency of 1Hz; if the detection result indicates that no vital signs have been detected, but a target object has been detected, the corresponding projection effect could be: a yellow light with a flashing frequency of 0Hz (i.e., no flashing, in a stable lighting state); if the detection result indicates that no vital signs have been detected, but no target object has been detected, the corresponding projection effect could be: a white light with a flashing frequency of 0Hz. The projection module can reuse the vehicle's puddle lights, enriching their functionality: transforming traditionally single-function puddle lights used only for welcome lighting into a feedback carrier for real-time perception of the cabin environment, alerting users to any vital signs or target objects left behind, thus enhancing the product value of the puddle lights.

[0028] In this embodiment, in response to the vehicle being turned off, the positioning module performs target detection in the vehicle's cabin to obtain detection data; based on the detection data, a detection result is determined; in response to the driver's side door opening, the projection effect of the projection module is controlled according to the detection result, with different projection effects corresponding to different prompts. Through this method, the most intuitive visual feedback can be provided the instant the user exits the vehicle. This design ensures a high degree of synchronization between the prompts and the user's actions, effectively avoiding information lag.

[0029] In one embodiment of this application, the number of the positioning modules is at least two, and each positioning module is distributed at a different location in the vehicle; In response to the vehicle being turned off, the positioning module performs target detection in the vehicle's cabin to obtain detection data, including: In response to the vehicle being turned off, a detection command is sent to each of the positioning modules so that the positioning modules can perform target detection on the cabin and obtain detection sub-data for each of the positioning modules; The probe data is determined based on each of the probe sub-data.

[0030] Specifically, when an engine shutdown signal is detected, the vehicle is determined to be off. The electronic device sends a detection command to each positioning module. After receiving the detection command, the positioning module enters the detection mode to perform target detection on the cabin and obtains the detection sub-data of each positioning module.

[0031] When each positioning module detects a target in the cockpit, it can detect once every first preset time interval, for example, every 30 seconds (or other preset time intervals, which are not limited here), and obtain a detection sub-data. The latest set of detection sub-data (including the detection sub-data obtained by each positioning module) is used as the detection data.

[0032] Positioning modules can be installed at the front and rear of the vehicle, for example, Figure 2a As shown, there are three positioning modules: two at the front of the vehicle and one at the rear. The positioning module at the rear of the vehicle, being closer to the rear seats (where infants and pets are easily forgotten), can perform more precise micro-motion detection of vital signs inside the cabin. Figure 2a The vehicle's hardware structure diagram includes a projection module, a positioning module, and a body controller (in this case, the electronic device is the body controller). The projection module is installed on the underbody panels of the driver and passenger doors, projecting multiple different patterns onto the ground. At least two positioning modules are installed, staggered at the front and rear of the vehicle for precise positioning. Objects to be identified inside the vehicle include, but are not limited to, infants, pets, and other vital signs with breathing and heartbeats, or items such as car keys and mobile phones equipped with UWB chips and capable of emitting radio waves. After precise positioning via UWB, the body controller controls the independent projection units within the projection module.

[0033] In this embodiment, after the vehicle is turned off, the positioning module performs target detection in the cabin to obtain detection data. This data is then used to determine whether there are any signs of life or target items in the cabin, and to promptly remind the user, effectively avoiding the lag in information prompts.

[0034] In one embodiment of this application, a detection command is sent to each of the positioning modules to enable the positioning modules to perform target detection on the cockpit, thereby obtaining detection sub-data for each positioning module, including: For each of the positioning modules, a detection command is sent to the positioning module so that the positioning module detects the vital signs of the cockpit at first preset time intervals to obtain first sub-data, and detects the target object to obtain second sub-data; and, The first sub-data and the second sub-data are used as the detection sub-data of the positioning module.

[0035] In this embodiment, when each positioning module detects a target in the cockpit, it can detect once every first preset time interval, for example, once every 30 seconds (or other preset time intervals, which are not limited here), and obtain a detection sub-data.

[0036] For example, the positioning module and the target item may include a UWB chip. A UWB chip is a semiconductor device that implements UWB technology. Its advantages stem from the characteristics of ultra-wideband signals, including high-precision positioning, high-speed data transmission, and low power consumption. It is suitable for scenarios that require short-range high-speed communication and accurate positioning.

[0037] When the positioning module detects a target in the cabin, it detects vital signs within the cabin to obtain the first sub-data. For example, the positioning module continuously performs micro-motion detection on the cabin to obtain echo signals (i.e., the first sub-data). Subsequently, the echo signals can be analyzed using algorithms, such as Fourier transform, to extract features consistent with human breathing and heartbeat frequencies, or features consistent with the breathing and heartbeat frequencies of animals (e.g., cats, dogs, and other pets), thereby determining whether vital signs have been detected inside the cabin.

[0038] Taking infants as an example, under normal circumstances, the functions of various organs in newborns are not fully developed. At this time, their respiratory rate and heart rate are relatively fast, with a respiratory rate of generally 40-45 breaths per minute and a heart rate of generally 120-140 beats per minute. As they grow older, the functions of various organs gradually improve, and their respiratory rate and heart rate gradually decrease. This differs from the adult respiratory rate, which is generally 12-20 breaths per minute and the heart rate, which is generally 60-100 beats per minute. The same principle can also be used to identify vital signs in pets and other animals.

[0039] On the other hand, the detection of the target object involves the positioning module sending radio waves. These radio waves reach the target object (if the target object is inside the cabin), and the target object then sends its own radio waves, which are received by the positioning module. The time for this process is T, and the transmission rate of the radio waves is the speed of light, c. From this, the distance between the positioning module and the target object can be calculated. The time T or distance mentioned above can be used as the second sub-data of the positioning module in subsequent calculations. It should be noted that if there is no target object inside the cabin when the positioning module is detecting it, the positioning module will not receive the radio waves emitted by the target object. In this case, the second sub-data can be 0 or other identifiers, with other identifiers indicating that the positioning module did not receive the radio waves emitted by the target object. The detection sub-data of the positioning module includes the first sub-data and the second sub-data.

[0040] In this embodiment, when the positioning module detects targets in the cabin, it detects vital signs in the cabin to obtain first sub-data and detects target objects to obtain second sub-data. The first sub-data and the second sub-data are used as the detection sub-data of the positioning module, which facilitates subsequent determination of whether there are vital signs, target objects, etc. in the cabin based on the detection data, so as to promptly remind the user and effectively avoid the lag in information prompts.

[0041] In one embodiment of this application, the first sub-data and the second sub-data most recently detected by each positioning module are analyzed and processed. Specifically, the first sub-data and the second sub-data are used as the detection sub-data of the positioning module, including: The first and second sub-data obtained most recently by the positioning module are used as the detection sub-data of the positioning module; the detection data includes the detection sub-data of each positioning module. Determining the detection result based on the detection data includes: For each of the detection sub-data in the detection data, if there is at least one detection sub-data, after data analysis of the first sub-data of the detection sub-data, it is determined that the first sub-data indicates the identification of vital signs, then the detection result indicates the identification of vital signs. And / or, for each of the detection sub-data in the detection data, if after data analysis of the first sub-data of each detection sub-data it is determined that each first sub-data indicates that no vital signs have been identified, then the detection result indicates that no vital signs have been identified. And / or, for each of the detection sub-data in the detection data, if after data analysis of the second sub-data of each of the detection sub-data, it is determined that each of the second sub-data indicates that the target item was not detected, then the detection result indicates that the target item was not detected; And / or, for each of the detection sub-data in the detection data, if after data analysis of the second sub-data of each detection sub-data it is determined that each second sub-data includes the distance between the corresponding positioning module and the target item, then the target position of the target item in the preset coordinate system is determined according to each distance; if the target position is located inside the cockpit, then the detection result indicates that the target item has been detected.

[0042] Specifically, data analysis is performed on each first sub-data set. For example, features consistent with human breathing and heart rate are extracted through Fourier transform or other means, or features consistent with animal breathing and heart rate (e.g., pets such as cats and dogs) are extracted. If these features are extracted, it indicates that vital signs have been identified. As long as features consistent with human breathing and heart rate or features consistent with animal breathing and heart rate (e.g., pets such as cats and dogs) are extracted from a first sub-data set, it is considered that there is an object with vital signs in the cockpit, and the detection result indicates that vital signs have been identified.

[0043] If no features consistent with human breathing and heart rate are extracted from each of the first sub-data sets, or if no features consistent with animal breathing and heart rate (e.g., pets such as cats and dogs) are extracted, it is considered that there are no living beings in the cabin, and the detection results indicate that no living beings have been identified.

[0044] Data analysis is performed on each second sub-data point. If each second sub-data point indicates that no target item was detected, for example, if each second sub-data point is 0, then the detection result is determined to indicate that no target item was detected.

[0045] If each of the second sub-data points includes the distance between the corresponding positioning module and the target item—for example, if the second sub-data point includes time T, and the distance between the positioning module and the target item can be calculated based on time T—or if the second sub-data point directly includes the distance between the positioning module and the target item, then the position of the target item is determined based on each distance. Specifically, a preset coordinate system is constructed. The preset coordinate system can be a two-dimensional Cartesian coordinate system with the vehicle center as the origin, the vehicle centerline as the Y-axis, and the X-axis perpendicular to the Y-axis and parallel to the horizontal direction. Alternatively, the preset coordinate system can be a three-dimensional Cartesian coordinate system with the vehicle center as the origin, the vehicle centerline as the Y-axis, the X-axis perpendicular to the Y-axis and parallel to the horizontal direction, and the Z-axis perpendicular to the horizontal direction. Other definitions of the preset coordinate system are also possible and are not limited here.

[0046] like Figure 2b , Figure 2c As shown in Figure d, in the preset coordinate system (two-dimensional rectangular coordinate system), the coordinates of anchor points P1 (first positioning module), P2 (second positioning module), and P3 (third positioning module) in the preset coordinate system are (Px1, Py1), (Px2, Py2), and (Px3, Py3), respectively. Specifically, two anchor points are located inside the front bumper, with coordinates P1 (Px1, Py1) and P2 (Px2, Py2), respectively. The other anchor point is located on the top of the rear passenger compartment interior, with coordinates P3 (Px3, Py3). Anchor point P3 can be used for micro-motion detection of vital signs inside the vehicle. The three anchor points work together to achieve precise positioning and detection of items such as car keys and mobile phones. Figure 2cThe circles in the diagram represent the outward radiating of the anchor points.

[0047] The distance is calculated by taking the radio waves to travel one round trip between each anchor point and the object to be identified, B (i.e., the target item), using the formula: Distance BP = (Speed ​​of light c * Time of flight T) / 2; Wherein, BP1= = / 2; BP2= = / 2; BP3= = / 2; By using any two of the above equations, the coordinates (Px, Py) of the object B to be identified can be obtained, and these coordinates are the target position.

[0048] Taking a cabin space that is 3m long and 2m wide as an example, if -1≤Px≤1 and -1.5≤Py≤1.5, it can be determined whether the object to be identified, B, is inside or outside the cabin.

[0049] If the preset coordinate system is a three-dimensional rectangular coordinate system, then three anchor points are needed to construct three equations for calculation.

[0050] In this embodiment, after the vehicle is turned off and before the driver's side door is opened, the first and second sub-data obtained most recently by the positioning module are analyzed. On the one hand, analyzing the latest acquired data can avoid inaccurate detection results. On the other hand, through data analysis, it can be determined whether there are any objects with vital signs left in the cabin, or whether target items are left behind, so that the user can be promptly reminded after the driver's side door is opened, effectively avoiding reminder delays and improving the user experience. In another embodiment of this application, the determination of whether a target item is left in the cockpit is made in a different way. Specifically, the first sub-data and the second sub-data are used as the detection sub-data of the positioning module, including: The earliest and latest first and second sub-data detected by the positioning module within the second preset time period are used as the detection sub-data of the positioning module, wherein the end time of the second preset time period is the time when the positioning module most recently detected the first and second sub-data. Determining the detection result based on the detection data includes: For each of the probe sub-data in the probe data, data analysis is performed on the earliest detected second sub-data in each probe sub-data to obtain a first analysis result; and, Data analysis is performed on the second sub-data that is detected latest in each of the aforementioned probe sub-data to obtain a second analysis result; If the first analysis result indicates that each of the earliest detected second sub-data includes the corresponding first distance between the positioning module and the target item, then the first position of the target item in the preset coordinate system is determined based on each of the first distances; And / or, if the second analysis result indicates that each latest detected second sub-data includes the corresponding second distance between the positioning module and the target item, then the second position of the target item in the preset coordinate system is determined based on each second distance; And / or, if both the first position and the second position are located inside the cabin, and the distance between the first position and the second position is less than a preset threshold, then the detection result indicates that a target item has been detected.

[0051] In this embodiment, when determining whether the detection result indicates that the target item has been detected, it is necessary to acquire two sets of data. The first set of data consists of the first sub-data and the second sub-data that were detected earliest within the second preset time period. The second set of data consists of the first sub-data and the second sub-data that were detected latest within the second preset time period. The first sub-data and the second sub-data that were detected latest are also the first sub-data and the second sub-data that were most recently detected by the positioning module.

[0052] For example, if the time when the positioning module last detected the first sub-data and the second sub-data is 10:30, then the end time of the second preset duration is 10:30:00. The start time can be set according to actual needs, for example, it can be set to 10:29:30. In this case, the second preset duration is 30 seconds.

[0053] For example, if there are three positioning modules, namely positioning module A, positioning module B, and positioning module C, and within the interval from 10:29:30 to 10:30:00, if the three positioning modules detect the first sub-data and the second sub-data at 10:29:30, then this set of first and second sub-data is the earliest first and second sub-data detected within the second preset time period. The second sub-data obtained by each positioning module is analyzed to obtain the first analysis result. If the first analysis result indicates that the second sub-data of positioning module A includes the first distance between positioning module A and the target item, the second sub-data of positioning module B includes the first distance between positioning module B and the target item, and the second sub-data of positioning module C includes the first distance between positioning module C and the target item, then the first position of the target item in the preset coordinate system is determined based on these three first distances. The construction method of the preset coordinate system can be found above and will not be repeated here.

[0054] Similarly, the first and second sub-data detected latest within the second preset time period by each positioning module are analyzed to obtain a second analysis result; if the second analysis result indicates that the second sub-data of positioning module A includes the second distance between positioning module A and the target item, the second sub-data of positioning module B includes the second distance between positioning module B and the target item, and the second sub-data of positioning module C includes the second distance between positioning module C and the target item, then the second position of the target item in the preset coordinate system is determined based on these three second distances.

[0055] By determining whether the distance between the first and second positions is less than a preset threshold, it can be determined whether the target item has moved within a second preset time period. If it is less than the preset threshold, it can be considered that the target item has not moved, the user has not taken the target item, and the target item is considered a lost and found item, requiring a reminder. If both the first and second positions are located within the cabin, and the distance between the first and second positions is greater than or equal to the preset threshold; or if only one of the first and second positions is not located within the cabin, and the distance between the first and second positions is greater than or equal to the preset threshold, it can be considered that the target item has moved, the user has taken the target item, and in this case, the target item is not considered a lost and found item, and no reminder is needed. In the above, by judging the positional changes of the target item within the second preset time period, it is possible to more accurately determine whether the target item is a lost and found item, thereby determining whether the detection result indicates that the target item has been detected, preparing for whether a lost and found item reminder is needed subsequently.

[0056] In one embodiment of this application, the projection module is disposed on the bottom panel of the driver's side door. When the driver's side door is closed, the light outlet of the projection module is blocked by the driver's side door; when the driver's side door is opened to a preset angle, the light outlet of the projection module is exposed. Controlling the projection effect of the projection module based on the detection results includes: If the driver's door is opened to a preset angle, the projection effect of the projection module on the ground is controlled according to the detection result. The projection effect includes at least one of the following: projection pattern, projection color, and projection flicker frequency.

[0057] like Figure 2d The diagram shows the positional relationship between the projection module 1, the door bottom panel 2, and the door 3. The main body of the projection module 1 is fixedly installed on the door bottom panel 2, forming a whole with the door bottom panel 2. The entire projection module 1 is located in the interlayer space between the door bottom panel 2 and the door 3 sheet metal.

[0058] When the driver opens the car door 3, and the car door 3 is rotated open to a critical angle of about 30° (i.e., the preset angle), the projection module 1 is fully exposed and the projection light cone 4 is unobstructed.

[0059] At this moment, the opening / closing signal of door 3 is sent to the electronic device to execute the decision command: the electronic device integrates real-time UWB data, makes a decision within milliseconds, and sends a projection command to projection module 1, projecting the corresponding pattern through the optical path. The door closes, blocking the light outlet, the electronic device shuts off all LED light sources, and the system enters a low-power standby state, waiting for the next trigger.

[0060] In this embodiment, the door bottom panel 2 and the projection module 1 are fixed, and the door 3 rotates relative to the projection module 1. When the door 3 is closed, the lower structure of the door's interior panel will completely block the light outlet of the projection module. This design brings multiple advantages, such as preventing mud and water contamination, preventing scratches and damage, and preventing optical aging. This installation scheme fundamentally solves the reliability problems caused by exposed designs, significantly improving the product's life cycle and performance stability in harsh environments.

[0061] In one embodiment of this application, the projection module includes multiple imaging units. Each imaging unit includes a light source, a condenser lens, a film with a projection pattern, and an imaging lens arranged sequentially. The projection pattern of the film in each imaging unit is different. The step of controlling the projection effect of the projection module onto the ground based on the detection results includes: If the detection result indicates that vital signs have been identified, the circuit containing the light source of the first imaging unit among the plurality of imaging units is powered on to project the projection pattern of the film in the first imaging unit onto the ground. Alternatively, if the detection result indicates that no vital signs were detected and the target object was detected, the circuit containing the light source of the second imaging unit among the plurality of imaging units is powered on to project the projection pattern of the film in the second imaging unit onto the ground. Alternatively, if the detection result indicates that no vital signs were identified and no target object was detected, the circuit containing the light source of the third imaging unit among the plurality of imaging units is powered on to project the projection pattern of the film in the third imaging unit onto the ground. The light sources of the first imaging unit, the second imaging unit, and the third imaging unit are of different colors.

[0062] Specifically, such as Figure 2e As shown, the imaging unit includes a light source 111, a condenser lens 112, a film with a projection pattern 113, and an imaging lens 114 arranged in sequence.

[0063] a. Light source 111 Taking three imaging units as an example, the light source arrangement of the three imaging units is as follows: Figure 2f As shown, three groups of high-brightness SMD LED light sources are arranged at intervals on the PCB board, wherein: Group 1 (Life Legacy): Red LED light source 111, wavelength 612~630nm, luminous efficacy approximately 50Lm / W; The second group (items left behind): Yellow LED light source 121, wavelength 580~600nm, luminous efficacy approximately 100Lm / W; The third group (lighting projection): white LED light source 131, color temperature 5800k~6000K, luminous efficacy approximately 150Lm / W; Because different colors have different light effects, the corresponding driving brightness under the same voltage and current is: white LED > yellow LED > red LED. The brightness of white LED is about three times that of red LED.

[0064] like Figure 2k As shown, the projection module also includes a main control chip and a driver chip. The main control chip interacts with the vehicle controller (in this case, the electronic device is the vehicle controller). Both the main control chip and the driver chip are connected to a 12V power supply. When the data monitored by UWB is sent to the vehicle controller, the vehicle controller outputs a LIN signal to control the projection module to perform the corresponding projection. The main control chip (IND83216) integrates the functions of an MCU control unit, a CANFD transceiver, and a crystal oscillator. It controls the driver chip (IND83010) through the UART serial communication protocol. This driver chip has a total of 24 channels, divided into groups of 8 channels to control red, yellow, and white LEDs respectively. The maximum current of a single LED is 0.8A.

[0065] The three LEDs are packaged on the same aluminum-based PCB board, which facilitates heat dissipation and ensures that the relative positions of the light sources are fixed. The corresponding control logic is as follows: Group 1 (Life Remnant Warning): The red LED is controlled by flashing, supports high-frequency PWM (Pulse Width Modulation) control, and has an independent drive circuit.

[0066] The second group (item left warning): The yellow LED control logic is always on, with an independent drive circuit.

[0067] The third group (conventional lighting projection): white LED control logic is always on, with an independent driving circuit.

[0068] The red flashing scheme is set at a frequency of 1Hz, which is a compromise value taken into account in terms of human factors. Too fast a frequency (>2Hz) will make people anxious, while too slow a frequency (<0.5Hz) will be easily mistaken for a malfunction or go unnoticed. 1Hz can effectively capture attention and is less likely to cause discomfort.

[0069] The duty cycle is set to 50% - 80% (meaning the on time is longer than the off time). A high duty cycle ensures that the pattern has a sufficiently high peak brightness during the "on" cycle, making it clearly visible even in underground parking garages with strong ambient light, while avoiding "false alarms" caused by too low brightness or too long off time.

[0070] b. Condensing lens 112 Located in front of the LED, the three sets of focusing lenses have the same structure and position. They are all used to collect the Lambertian light emitted by the LED and converge and collimate it into a parallel beam, thereby improving the light energy utilization rate and making the final projected pattern uniform in brightness and clear in boundary.

[0071] c. Film 113 Optical-grade film engraved with custom patterns is the core module of the imaging image. A beam of light passes through the film, projecting the pattern onto it; different imaging units correspond to different film patterns.

[0072] d. Imaging lens 114 Its function is to magnify, correct, and clearly image the pattern on the film onto the ground. Its focal length and curvature are precisely calculated to ensure no distortion or loss of image quality at a projection distance of approximately 500-800mm.

[0073] According to the optical lens imaging formula 1 / u + 1 / v = 1 / f (object distance u, image distance v, focal length f), with a fixed image distance (projection distance) v, a shorter focal length f results in a greater magnification. This allows it to enlarge the pattern on the film, creating a highly impactful warning area on the ground.

[0074] Since there are significant differences in the luminous flux of the LED light source corresponding to the three imaging units and the size of the ground imaging pattern, in order to ensure consistent brightness for different patterns, the number of lenses, diameter, thickness, radius of curvature, and other parameters of the imaging lenses can be adjusted as needed to determine different lens focal lengths.

[0075] like Figure 2g As shown, the red LED corresponds to the first imaging unit 11, the yellow LED corresponds to the first imaging unit 12, and the white LED corresponds to the first imaging unit 13.

[0076] Scenario 1: If a living being is confirmed inside the cabin, control the multi-frame ground projection device to project a flashing, conspicuous red warning symbol onto the ground corresponding to the vehicle door. Figure 2h As shown, this provides a real-time, intuitive visual alert. If the driver fails to notice the visual alert and take further action to lock the vehicle, the system immediately triggers a high-priority alarm, including continuous horn honking or a text message notification.

[0077] Scenario 2: If the object to be identified (such as a mobile phone or car keys) is detected to be stationary, it can be determined that the item was left behind. The multi-frame ground projection light device will then project a yellow warning symbol and the text "Left Behind" onto the ground near the corresponding car door. Figure 2i As shown.

[0078] Scenario 3: If no vital signs are detected inside the vehicle, and no items are found left behind, control the multi-frame ground projection light device to project a normal white carpet light pattern onto the floor of the corresponding vehicle door, such as... Figure 2j As shown.

[0079] The differences between the three projection patterns are as follows: Since the voltage and current of the LED control circuit in this design are the same, the output luminous flux of different colored LED light sources is different (red < yellow < white) when the maximum driving current is 0.8A. In order to ensure that the size and brightness of the three projection patterns are not significantly different, the projection field of view is controlled by adjusting the focal length and size of the corresponding projection unit, reducing the size of the red warning pattern and enlarging the pattern of the white carpet light to ensure that the brightness of the three projection patterns is consistent.

[0080] like Figure 2l The projection module structure shown consists of a heat sink 1111, a PCB module 1112 (including three groups of LED light sources arranged at intervals), an imaging module 1113, an outer cover 1114 with a bracket, and a wiring harness 1115. The imaging module 1113 integrates multiple projection units (each imaging unit includes a projection unit and a group of LED light sources from the PCB module 1112). The optical axes corresponding to each projection unit are O1, O2, O3…, and each projection unit includes an optical film, an imaging lens, and a barrel. The PCB module 1112 integrates circuitry that can individually drive and control the LED light sources. Both are secured to the heat sink 1111 with screws, and then the entire heat sink 1111 is mounted on the outer cover 1114 with a bracket.

[0081] In this embodiment, different imaging units are used for projection based on the different detection results, resulting in different projection effects and thus presenting different prompts. This method provides the most intuitive visual feedback the moment the user gets off the vehicle. This design ensures a high degree of synchronization between the prompts and the user's actions, effectively avoiding information lag.

[0082] In one embodiment of this application, after controlling the projection effect of the projection module based on the detection result, the method further includes: In response to the closing of the driver's side door, if the time interval between the closing and opening of the driver's side door is less than a third preset duration, a target method is used to provide a prompt, which includes at least one of an audio prompt, a text message prompt, and a mobile phone call prompt. Specifically, if the time interval between the opening and closing of the driver's door is less than a third preset duration (e.g., 10 seconds), and given the short time, the user is unlikely to take away the infant or pet left behind during this period, there is a possibility of leaving something behind. Therefore, other methods of alerting the user are necessary, such as audio alerts (e.g., triggering a horn), SMS alerts (e.g., sending an alert SMS to the user's mobile phone), or mobile phone call alerts (e.g., dialing the user's mobile phone to alert them). If, after using visual feedback to provide an alert, there are still signs of life or the target item left behind, further targeted alerts will be used to avoid safety hazards to the infant or pet, or inconvenience caused by leaving the target item behind.

[0083] The following examples illustrate the information prompting method provided in the embodiments of this application.

[0084] like Figure 2m As shown, the information prompting method provided in this application embodiment includes: Step 201: When the vehicle is turned off, the vehicle's central processing unit sends instructions to all UWB anchor points to put them into monitoring mode. Step 202: The UWB anchor points begin to work together, continuously scanning the cockpit and collecting positioning and micro-motion detection data; Step 203: Determine if the car door is open. If it is not open, proceed to step 202; if it is open, proceed to step 204. Step 204: The central processing unit acquires and analyzes the data collected by the UWB anchor point to obtain the detection results.

[0085] Step 205: Based on the detection results, control the projection effect of the projection module. Different projection effects correspond to different prompt messages.

[0086] If the detection results indicate that vital signs have been detected, then strategy one (highest priority) will be executed: control the projector to project a flashing red warning pattern; if the user still locks the car and leaves, trigger the horn and send an SMS notification. If the detection results indicate that no life signs were detected but the target item was found, then execute strategy two (medium priority): control the projector to project a solid yellow warning pattern; If the detection results indicate that no life signs were detected and no target item was left behind, then execute strategy three (safe mode): control the projector to project a white, constantly lit pattern.

[0087] By providing the most intuitive visual feedback the moment the user gets off the vehicle, this design ensures a high degree of synchronization between the warning information and the user's actions, achieving the best timing for human-computer interaction.

[0088] Figure 3 A structural diagram of the information prompting device provided in an embodiment of this application is shown. Figure 3 As shown, the information prompting device 300 is applied to an electronic device. The electronic device is communicatively connected to a projection module installed in a vehicle. The vehicle also includes a positioning module that emits detection signals. The information prompting device 300 includes: The first response module 301 is used to respond to the vehicle being turned off by performing target detection on the vehicle's cabin through the positioning module and obtaining detection data. The second response module 302 is used to determine the detection result based on the detection data; Projection module 303 is used to respond to the opening of the driver's door of the vehicle and control the projection effect of the projection module according to the detection result. Different projection effects correspond to different prompt information. The detection results indicate at least one of the following: Vital signs were detected, or no vital signs were detected; The target item was detected, or the target item was not detected.

[0089] In one embodiment of this application, the number of the positioning modules is at least two, and each positioning module is distributed at a different location in the vehicle; The first response module 301 includes: The first response submodule is used to send a detection command to each of the positioning modules in response to the vehicle being turned off, so that the positioning modules can perform target detection on the cabin and obtain detection sub-data of each positioning module. A determination submodule is used to determine the detection data based on each of the detection sub-data.

[0090] In one embodiment of this application, the first response submodule includes: The detection unit is used to send a detection command to each of the positioning modules, so that the positioning module detects the vital signs of the cabin every first preset time interval to obtain first sub-data, and detects the target object to obtain second sub-data. A determining unit is used to use the first sub-data and the second sub-data as the detection sub-data of the positioning module.

[0091] In one embodiment of this application, both the positioning module and the target item include a UWB chip; Determine the unit, specifically for: The first and second sub-data obtained most recently by the positioning module are used as the detection sub-data of the positioning module. The second response module 302 is specifically used for: For each of the detection sub-data in the detection data, if there is at least one detection sub-data, after data analysis of the first sub-data of the detection sub-data, it is determined that the first sub-data indicates the identification of vital signs, then the detection result indicates the identification of vital signs. And / or, for each of the detection sub-data in the detection data, if after data analysis of the first sub-data of each detection sub-data it is determined that each first sub-data indicates that no vital signs have been identified, then the detection result indicates that no vital signs have been identified. And / or, for each of the detection sub-data in the detection data, if after data analysis of the second sub-data of each of the detection sub-data, it is determined that each of the second sub-data indicates that the target item was not detected, then the detection result indicates that the target item was not detected; And / or, for each of the detection sub-data in the detection data, if after data analysis of the second sub-data of each detection sub-data it is determined that each second sub-data includes the distance between the corresponding positioning module and the target item, then the target position of the target item in the preset coordinate system is determined according to each distance; if the target position is located inside the cockpit, then the detection result indicates that the target item has been detected.

[0092] In one embodiment of this application, the determining unit is specifically used for: The earliest and latest first and second sub-data detected by the positioning module within the second preset time period are used as the detection sub-data of the positioning module, wherein the end time of the second preset time period is the time when the positioning module most recently detected the first and second sub-data. The second response module 302 is specifically used for: For each of the probe sub-data in the probe data, data analysis is performed on the earliest detected second sub-data in each probe sub-data to obtain a first analysis result; and, Data analysis is performed on the second sub-data that is detected latest in each of the aforementioned probe sub-data to obtain a second analysis result; If the first analysis result indicates that each of the earliest detected second sub-data includes the corresponding first distance between the positioning module and the target item, then the first position of the target item in the preset coordinate system is determined based on each of the first distances; And / or, if the second analysis result indicates that each latest detected second sub-data includes the corresponding second distance between the positioning module and the target item, then the second position of the target item in the preset coordinate system is determined based on each second distance; And / or, if both the first position and the second position are located inside the cabin, and the distance between the first position and the second position is less than a preset threshold, then the detection result indicates that a target item has been detected.

[0093] In one embodiment of this application, the projection module is disposed on the bottom panel of the driver's side door. When the driver's side door is closed, the light outlet of the projection module is blocked by the driver's side door; when the driver's side door is opened to a preset angle, the light outlet of the projection module is exposed. Projection module 303 is specifically used for: If the driver's door is opened to a preset angle, the projection effect of the projection module on the ground is controlled according to the detection result. The projection effect includes at least one of the following: projection pattern, projection color, and projection flicker frequency.

[0094] In one embodiment of this application, the projection module includes multiple imaging units. Each imaging unit includes a light source, a condenser lens, a film with a projection pattern, and an imaging lens arranged sequentially. The projection pattern of the film in each imaging unit is different. The projection module 303 is specifically used for: If the detection result indicates that vital signs have been identified, the circuit containing the light source of the first imaging unit among the plurality of imaging units is powered on to project the projection pattern of the film in the first imaging unit onto the ground. Alternatively, if the detection result indicates that no vital signs were detected and the target object was detected, the circuit containing the light source of the second imaging unit among the plurality of imaging units is powered on to project the projection pattern of the film in the second imaging unit onto the ground. Alternatively, if the detection result indicates that no vital signs were identified and no target object was detected, the circuit containing the light source of the third imaging unit among the plurality of imaging units is powered on to project the projection pattern of the film in the third imaging unit onto the ground. The light sources of the first imaging unit, the second imaging unit, and the third imaging unit are of different colors.

[0095] In one embodiment of this application, the information prompting device 300 further includes: The third response module is used to respond to the closing of the driver's side door. If the time interval between the closing and opening of the driver's side door is less than a third preset duration, a target method is used to provide a prompt. The target method includes at least one of sound prompt, SMS prompt, and mobile phone call prompt. The information prompting device 300 provided in this application embodiment can implement all the processes implemented in the aforementioned information prompting method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0096] Figure 4 A schematic diagram of the hardware structure of the electronic device provided in an embodiment of this application is shown.

[0097] The electronic device may include a processor 601 and a memory 602 storing computer program instructions.

[0098] Specifically, the processor 601 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0099] Memory 602 may include mass storage for data or instructions. For example, and not limitingly, memory 602 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 602 may include removable or non-removable (or fixed) media. Where appropriate, memory 602 may be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, memory 602 is non-volatile solid-state memory.

[0100] Memory may include read-only memory (ROM), random access memory (RAM), disk storage media devices, optical storage media devices, flash memory devices, and electrical, optical, or other physical / tangible memory storage devices. Therefore, typically, memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the methods according to the first or second aspect of this disclosure.

[0101] The processor 601 implements any of the information auditing methods described in the above embodiments by reading and executing computer program instructions stored in the memory 602.

[0102] In one example, the electronic device may also include a communication interface 603 and a bus 610. For example, Figure 4 As shown, the processor 601, memory 602, and communication interface 603 are connected through bus 610 and complete communication with each other.

[0103] The communication interface 603 is mainly used to realize communication between various modules, devices, units and / or equipment in the embodiments of this application.

[0104] Bus 610 includes hardware, software, or both, that couples components of an information auditing method or verification device together. For example, and not as a limitation, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 610 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, any suitable bus or interconnect is contemplated herein.

[0105] Furthermore, in conjunction with the information prompting methods in the above embodiments, this application embodiment can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the information prompting methods in the above embodiments.

[0106] This application provides a computer program product in which the instructions are executed by the processor of an electronic device, causing the electronic device to perform any of the information prompting methods described in the above embodiments.

[0107] This application provides a vehicle that includes the electronic devices described in the above embodiments.

[0108] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described as examples. However, the method process of this application is not limited to the specific steps described. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0109] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0110] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0111] The foregoing flowcharts and / or block diagrams of methods, apparatus (systems) according to embodiments of the present disclosure have described various aspects of the present disclosure. It should be understood that each block of the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to create a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowcharts and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block of the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0112] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. An information presentation method characterized by comprising: The method is applied to an electronic device in communication with a projection module arranged in a vehicle, the vehicle further comprising a positioning module that emits a detection signal, and the method comprises: In response to the vehicle being turned off, target detection is performed on a cabin of the vehicle by the positioning module to obtain detection data; A detection result is determined according to the detection data; In response to a driver door of the vehicle being opened, a projection effect of the projection module is controlled according to the detection result, and different projection effects correspond to different prompt information; The detection result indicates at least one of the following: A vital sign is identified, or a vital sign is not identified; A target object is detected, or the target object is not detected.

2. The information presentation method according to claim 1, characterized by, The number of the positioning modules is at least two, and each positioning module is distributed at a different position of the vehicle; In response to the vehicle being turned off, target detection is performed on a cabin of the vehicle by the positioning module to obtain detection data, comprising: In response to the vehicle being turned off, a detection instruction is sent to each positioning module to enable the positioning module to perform target detection on the cabin to obtain detection sub-data of each positioning module; A detection result is determined according to each detection sub-data.

3. The information prompting method of claim 2, wherein The detection instruction is sent to each positioning module to enable the positioning module to perform target detection on the cabin to obtain detection sub-data of each positioning module, comprising: For each positioning module, a detection instruction is sent to the positioning module to enable the positioning module to detect a vital sign of the cabin every first preset time length to obtain first sub-data, and to detect the target object to obtain second sub-data; and The first sub-data and the second sub-data are taken as the detection sub-data of the positioning module.

4. The information presentation method according to claim 3, characterized by, The positioning module and the target object each comprise an ultra-wideband (UWB) chip; The first sub-data and the second sub-data are taken as the detection sub-data of the positioning module, comprising: The first sub-data and the second sub-data obtained by the positioning module in the last detection are taken as the detection sub-data of the positioning module; The detection result is determined according to the detection data, comprising: For each detection sub-data in the detection data, if there is at least one detection sub-data, a first sub-data of the detection sub-data is analyzed to determine that the first sub-data indicates that a vital sign is identified, and it is determined that the detection result indicates that a vital sign is identified; And / or, for each detection sub-data in the detection data, if a first sub-data of each detection sub-data is analyzed to determine that each first sub-data indicates that a vital sign is not identified, it is determined that the detection result indicates that a vital sign is not identified; And / or, for each detection sub-data in the detection data, if a second sub-data of each detection sub-data is analyzed to determine that each second sub-data indicates that the target object is not detected, it is determined that the detection result indicates that the target object is not detected; And / or, for each of the detection sub-data in the detection data, if it is determined by data analysis on the second sub-data of each of the detection sub-data that each of the second sub-data includes a distance between the corresponding positioning module and the target object, a target position of the target object in a preset coordinate system is determined according to each distance; if the target position is located in the cabin, it is determined that the detection result indicates that a target object is detected.

5. The information presentation method according to Claim 3, wherein The first sub-data and the second sub-data are taken as the detection sub-data of the positioning module, comprising: The first sub-data and the second sub-data detected by the positioning module in a second preset time period are taken as the detection sub-data of the positioning module, wherein the end time of the second preset time period is the time when the first sub-data and the second sub-data detected by the positioning module last time; The detection result is determined according to the detection data, comprising: For each of the detection sub-data in the detection data, data analysis is performed on the second sub-data detected earliest in each of the detection sub-data to obtain a first analysis result; and, Data analysis is performed on the second sub-data detected latest in each of the detection sub-data to obtain a second analysis result; If the first analysis result indicates that each of the second sub-data detected earliest includes a first distance between the corresponding positioning module and the target object, a first position of the target object in a preset coordinate system is determined according to each of the first distances; And / or, if the second analysis result indicates that each of the second sub-data detected latest includes a second distance between the corresponding positioning module and the target object, a second position of the target object in the preset coordinate system is determined according to each of the second distances; And / or, if the first position and the second position are both located in the cabin and the distance between the first position and the second position is less than a preset threshold, it is determined that the detection result indicates that a target object is detected.

6. The information presentation method according to Claim 1, wherein The projection module is arranged on a door bottom guard plate of the driver door, and the light outlet of the projection module is blocked by the driver door when the driver door is closed; The light outlet of the projection module is exposed when the driver door is opened by a preset angle; The projection effect of the projection module is controlled according to the detection result, comprising: If the driver door is opened by a preset angle, the projection effect of the projection module projected to the ground is controlled according to the detection result, and the projection effect comprises at least one of a projection pattern, a projection color, and a projection flicker frequency.

7. The information presentation method according to claim 6, characterized by, The projection module comprises a plurality of imaging units, and each of the imaging units comprises a light source, a condenser lens, a film with a projection pattern, and an imaging lens arranged in sequence, and the projection pattern of the film in each of the imaging units is different; The projection effect of the projection module projected to the ground is controlled according to the detection result, comprising: In a case where the detection result indicates that a vital sign is identified, a circuit in which a light source of a first imaging unit of the plurality of imaging units is located is powered on to project a projection pattern of a film sheet in the first imaging unit to the ground; Or, in a case where the detection result indicates that a vital sign is not identified and the target object is detected, a circuit in which a light source of a second imaging unit of the plurality of imaging units is located is powered on to project a projection pattern of a film sheet in the second imaging unit to the ground; Or, in a case where the detection result indicates that a vital sign is not identified and the target object is not detected, a circuit in which a light source of a third imaging unit of the plurality of imaging units is located is powered on to project a projection pattern of a film sheet in the third imaging unit to the ground; The colors of the light sources of the first imaging unit, the second imaging unit, and the third imaging unit are different.

8. The information presentation method according to any one of claims 1 to 7, characterized by, After the projection effect of the projection module is controlled according to the detection result, the method further includes: In response to the closing of the driver's door, if a time interval between the closing of the driver's door and the opening of the driver's door is less than a third preset time length, a target mode is adopted to perform prompting, the target mode including at least one of sound prompting, mobile phone short message prompting, and mobile phone call prompting.

9. An information presentation device, characterized by comprising: The electronic device is applied to an electronic device, the electronic device is in communication connection with a projection module arranged in a vehicle, the vehicle further includes a positioning module, the positioning module emits a detection signal, and the device includes: A first response module is configured to, in response to the vehicle being turned off, perform target detection on a cabin of the vehicle by using the positioning module to obtain detection data; A second response module is configured to determine a detection result according to the detection data; A projection module is configured to, in response to the opening of a driver's door of the vehicle, control a projection effect of the projection module according to the detection result, different projection effects corresponding to different prompt information; The detection result indicates at least one of the following: A vital sign is identified, or a vital sign is not identified; A target object is detected, or the target object is not detected.

10. An electronic device, comprising: The device includes: A processor and a memory storing computer program instructions; The processor executes the computer program instructions to implement the information prompting method in any one of claims 1-8.

11. A vehicle characterized by comprising: The vehicle includes the electronic device in claim 10.

12. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer program instructions, and the computer program instructions are executed by the processor to implement the information prompting method in any one of claims 1-8.

13. A computer program product, characterised in that, The instructions in the computer program product are executed by the processor of the electronic device to cause the electronic device to perform the information prompting method in any one of claims 1-8.

Images