A system and method for classifying the on / off of a vehicle information collection device according to a vehicle position

Abstract

The application provides a system and method for classifying and opening / closing vehicle information collection equipment according to vehicle position, which comprises a positioning module, a position analysis module, a storage module and a vehicle control module; the positioning module obtains current position information of the vehicle through a satellite system such as Beidou / GPS, and transmits the position information to the position analysis module; the storage module stores a position database, which contains sensitive restriction levels set for different locations; the vehicle control module is used for controlling the information collection equipment of the vehicle; the position analysis module matches the position information with the content of the position database to find out the sensitive restriction level corresponding to the position information; and the control module controls the running state of the information collection equipment of the vehicle according to the sensitive restriction level, so that different sensitive level settings are realized at different locations, and the vehicle is ensured not to violate the requirements of regulations.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle information acquisition device control, in particular to a system and method for enabling and disabling vehicle information acquisition device according to vehicle location. BACKGROUND

[0002] According to relevant laws and regulations, certain specific areas are explicitly listed as sensitive areas, and unauthorized audio and video acquisition may be considered a threat to public safety. These areas include but are not limited to important office areas, airports, ports, transportation hubs such as train stations, and military facilities and national defense projects. In these areas, any unauthorized data acquisition may violate the law and have serious consequences.

[0003] With the rapid development of intelligent connected vehicles, intelligent driving technologies such as L2 and L2+ are gradually becoming popular. These vehicles are generally equipped with various sensors such as cameras and radars, and have functions such as video recording, location tracking, and terrain mapping. Under the above legal framework, the powerful data acquisition capability also poses potential risks, which may lead to unauthorized acquisition of sensitive information by intelligent connected vehicles, resulting in the leakage of sensitive information and endangering personal privacy and public safety.

[0004] The existing solution is to manually turn on / off the sensitive area mode to enable / disable the vehicle's information acquisition device. Therefore, the data acquisition behavior of intelligent connected vehicles in these areas cannot be strictly regulated and controlled, posing a potential threat to social stability. SUMMARY

[0005] The purpose of the present application is to provide a method for automatically enabling / disabling external sensors based on changes in vehicle location, which controls the data acquisition range of sensitive areas by setting different sensitive levels corresponding to different vehicle operating modes.

[0006] To achieve the above purpose, the technical solution adopted by the present application to solve its technical problems is to provide a system for enabling and disabling vehicle information acquisition device according to vehicle location, comprising: a positioning module, a location analysis module, a storage module, and a vehicle control module.

[0007] The positioning module obtains the current location information of the vehicle through a satellite system such as Beidou / GPS, and transmits the location information to the location analysis module.

[0008] The storage module stores a location database containing sensitive restriction levels set for different locations.

[0009] The vehicle control module is used to control the vehicle's information acquisition device.

[0010] The position analysis module matches the position information with the content of the position database to find the sensitive restriction level corresponding to the position information.

[0011] The control module controls the running state of the information acquisition device of the vehicle according to the sensitive restriction level, so that different sensitive levels are realized at different locations, and it is ensured that the vehicle does not violate the regulatory requirements.

[0012] In order to achieve the above purpose, the application further provides a method for enabling and disabling the information acquisition device of a vehicle according to the position of the vehicle, wherein,

[0013] The positioning module obtains the current position information of the vehicle through a satellite system such as Beidou / GPS, and transmits the position information to the position analysis module.

[0014] The position analysis module matches the position information with the content of the position database stored in the storage module to find the sensitive restriction level corresponding to the position information, and the position database contains the sensitive restriction levels set for different locations.

[0015] The control module controls the running state of the information acquisition device of the vehicle according to the sensitive restriction level.

[0016] The method automatically switches the running state of the information acquisition device of the vehicle corresponding to different sensitive levels through the control module according to the sensitive restriction level, so that different sensitive levels are realized at different locations, and it is ensured that the vehicle does not violate the regulatory requirements.

[0017] Preferably, the information acquisition device includes a camera, a radar and other sensors (the camera includes an image acquisition device and a video acquisition device).

[0018] Preferably, the sensitive restriction level is divided in the following way:

[0019] Ordinary road conditions are divided into sensitive restriction level 1, which is a low sensitive level;

[0020] The crowd dense area is divided into sensitive restriction level 2, which is a medium sensitive level;

[0021] The airport, traffic hub and other areas are divided into sensitive restriction level 3, which is a high sensitive level.

[0022] More preferably, the control module controls the running state of the information acquisition device according to the sensitive restriction level in the following way:

[0023] Sensitive restriction level 1: the control module has no restrictions on the information acquisition device, and all information acquisition devices can start all functions;

[0024] Sensitive restriction level 2: the control module controls the information acquisition device to be available only with radar, and all cameras are turned off.

[0025] Sensitivity limit level 3, the control module controls the information acquisition device to close all cameras and radars.

[0026] More preferably, the position database contains control strategies of the operating state of the information acquisition device corresponding to different sensitivity limit levels, and the control strategies include: a definition strategy, an acquisition range strategy;

[0027] The control module controls the operating state of the information acquisition device according to the control strategy corresponding to the sensitivity limit level.

[0028] More preferably, the definition strategy is to adjust the final definition of the camera according to the sensitivity limit level, and the calculation method of the final definition is:

[0029] First, calculate the basic definition according to the preset regional basic weight corresponding to the sensitivity limit level and the maximum resolution of the camera:

[0030] Basic definition = regional basic weight × maximum resolution of camera;

[0031] Wherein, the regional basic weight ∈ [0.5, 1];

[0032] Second, calculate the dynamic definition according to the principle of using high definition for close targets and reducing the definition for distant targets:

[0033] Dynamic definition = basic definition × e^(-k × distance)

[0034] Wherein, k is the attenuation coefficient, which can be configured, and the unit of distance is meter;

[0035] Finally, calculate the final definition according to the target sensitivity coefficient preset for the target type:

[0036] Final definition = dynamic definition × (1 - target sensitivity coefficient).

[0037] More preferably, the acquisition range strategy is to set different direction thresholds according to the acquisition direction of the camera:

[0038] The basic threshold of the direction threshold is to set a preset value according to the direction, including: front threshold, side threshold, rear threshold, unit: meter,

[0039] The calculation formula of the direction threshold is:

[0040] Direction threshold = basic threshold × (1 + direction correction coefficient × sin²(θ))

[0041] Wherein, the direction threshold is dynamically adjusted according to the driving direction of the vehicle, θ is the included angle between the target and the driving direction of the vehicle, and the direction correction coefficient ∈ is [0, 0.5],

[0042] The area exceeding the direction threshold is controlled to be collected.

[0043] More preferably, the collection control is at the hardware level, and the area exceeding the threshold is not physically collected through lens angle or exposure control, or at the software level, and the pixels exceeding the threshold are marked as invalid areas in the image.

[0044] More preferably, the collection control is to perform blur processing: Gaussian blur is performed on the area exceeding the direction threshold but having been collected, and the blur radius is calculated according to the following formula:

[0045] Blur radius = (actual distance - direction threshold) x blur intensity coefficient,

[0046] Blur intensity coefficient: 0.1-0.5, configurable.

[0047] The present application automatically adjusts the sensitivity level in real time according to the vehicle position, avoids manual switching, improves the accuracy based on automatic switching of the position, and further avoids the risk of illegal driving by the vehicle owner.

[0048] The improved method of the present application realizes the optimal balance between privacy protection and system performance while ensuring the safety function of automatic driving through hierarchical control, direction threshold self-adaptation and intelligent blur processing, and the technical indicators fully surpass the traditional fixed configuration scheme, and have high scalability and compliance. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to better understand the above and other purposes, features, advantages and functions of the present application, reference can be made to the embodiments shown in the drawings. The same reference numerals in the drawings refer to the same parts. It should be understood by those skilled in the art that the drawings are intended to illustrate the preferred embodiments of the present application, and have no limiting effect on the scope of the present application, and the various parts in the drawings are not drawn to scale.

[0050] Figure 1 The structure of a system for starting and stopping vehicle information collection equipment according to the position of the vehicle is shown.

[0051] Figure 2 The flowchart of a method for starting and stopping vehicle information collection equipment according to the position of the vehicle is shown.

[0052] Figure 3 Another flowchart of a method for starting and stopping vehicle information collection equipment according to the position of the vehicle is shown.

[0053] Figure 4The diagram shows another flowchart of a method for tiered activation and deactivation of vehicle information collection equipment based on vehicle location.

[0054] The diagram shows the following components: 1. Positioning module, 2. Location analysis module, 3. Database, 4. Vehicle control module, 5. Camera, 6. Radar, 7. Radar. Detailed Implementation

[0055] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0056] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0057] In order to at least partially solve one or more of the above-mentioned problems and other potential problems, embodiments of this disclosure propose a system for hierarchically opening and closing vehicle information collection equipment based on vehicle location.

[0058] like Figure 1 As shown, it includes: positioning module 1, location analysis module 2, storage module 3, and vehicle control module 4.

[0059] Positioning module 1 obtains the vehicle's current location information through satellite systems such as BeiDou / GPS and transmits the location information to location analysis module 2;

[0060] Storage module 3 stores a location database, which contains sensitivity restriction levels set for different locations;

[0061] Vehicle control module 4 is used to control the vehicle's information acquisition equipment;

[0062] Location analysis module 2 matches the location information with the contents of the location database to identify the sensitivity restriction level corresponding to the location information;

[0063] The vehicle control module 4 controls the operating status of the vehicle's information collection equipment according to the sensitivity restriction level, thereby achieving different sensitivity level settings in different locations to ensure that the vehicle does not violate regulatory requirements.

[0064] Information acquisition equipment includes sensors such as camera 5 and radar 6. Camera 6 includes, but is not limited to, cameras that capture images and / or devices that capture video.

[0065] like Figure 2 As shown, Figure 1 The flowchart shown illustrates the method for the system to activate and deactivate vehicle information collection equipment in stages based on vehicle location.

[0066] S1. The positioning module obtains the vehicle's current location information through satellite systems such as Beidou / GPS and transmits the location information to the location analysis module;

[0067] S2. The location analysis module matches the location information with the contents of the location database stored in the storage module to find the sensitivity restriction level corresponding to the location information. The location database contains sensitivity restriction levels set for different locations.

[0068] S3. The control module controls the operating status of the vehicle's information collection equipment according to the sensitivity restriction level.

[0069] This method uses a control module to automatically switch the operating status of the vehicle's information collection equipment to the corresponding sensitivity level based on the sensitivity restriction level, thereby achieving different sensitivity level settings in different locations and ensuring that the vehicle does not violate regulatory requirements.

[0070] like Figure 3 As shown, Figure 1 The flowchart shown is an improved method for the system to activate and deactivate vehicle information collection equipment in stages based on vehicle location.

[0071] S1. The positioning module obtains the vehicle's current location information through satellite systems such as Beidou / GPS and transmits the location information to the location analysis module;

[0072] S21. The location analysis module obtains the sensitivity restriction level from the location database of the storage module. The sensitivity restriction level may include:

[0073] Sensitivity restriction level 1, low sensitivity level, corresponding to normal road conditions;

[0074] Sensitivity Level 2, Medium Sensitivity Level, corresponds to densely populated areas;

[0075] Sensitivity Level 3, High Sensitivity Level, corresponds to areas such as airports and transportation hubs;

[0076] Sensitivity restriction level 4, special sensitivity level, corresponding to other forbidden area type regions.

[0077] S22, the position analysis module selects the corresponding sensitivity restriction level according to the position information;

[0078] Sensitivity restriction level 1, the control module has no restriction on the information collection device, and all information collection devices can start all functions;

[0079] Sensitivity restriction level 2, the control module controls the information collection device to be available only by radar, and all cameras are turned off.

[0080] Sensitivity restriction level 3, the control module controls the information collection device to turn off all cameras and radars.

[0081] S3, the control module controls the running state of the information collection device of the vehicle according to the sensitivity restriction level:

[0082] Sensitivity restriction level 1, the control module has no restriction on the information collection device, and all information collection devices can start all functions;

[0083] Sensitivity restriction level 2, the control module controls the information collection device to be available only by radar, and all cameras are turned off.

[0084] Sensitivity restriction level 3, the control module controls the information collection device to turn off all cameras and radars.

[0085] As shown in Figure 4 As shown in the flow chart of another improved method of the system shown in Figure 1

[0086] S1, the positioning module obtains the current position information (position signal) of the vehicle through the Beidou / GPS satellite system, and transmits the position information to the position analysis module in the form of coordinates;

[0087] S21, the position analysis module obtains the sensitivity restriction level and the control strategy of the running state of the information collection device from the position database of the storage module, and the sensitivity restriction level can include:

[0088] Sensitivity restriction level 1, low sensitivity level, corresponding to ordinary road conditions;

[0089] Sensitivity restriction level 2, medium sensitivity level, corresponding to densely populated areas;

[0090] Sensitivity restriction level 3, high sensitivity level, corresponding to airport, transportation hub and other regions;

[0091] Sensitivity restriction level 4, special sensitivity level, corresponding to other forbidden area type regions.​

[0092] The control strategy includes a definition strategy and a collection range strategy.

[0093] S22, the position analysis module selects a sensitive restriction level corresponding to the position information and a control strategy corresponding to the sensitive restriction level according to the position information;

[0094] S3, the control module controls the running state (on / off / special parameter on) of the information collection device (camera, radar sensor, etc.) of the vehicle according to the control strategy corresponding to the sensitive restriction level;

[0095] The definition strategy and the collection range strategy included in the control strategy can be used alone or in combination, for example:

[0096] Sensitivity limit level Camera Final sharpness Acquisition range Level 1 (low) On Adaptive adjustment (see formula below) Directional threshold, exceeding part blurred or not acquired Level 2 (medium) Off - - Level 3 (high) Off - -

[0097] The definition strategy is to adjust the final definition of the camera according to the sensitive restriction level. The calculation method of the final definition is:

[0098] According to the region basic weight (for example, the weight of a commercial area is high, and the weight of a residential area is low) corresponding to the sensitive restriction level and the maximum resolution of the camera, the basic definition is calculated:

[0099] Basic definition = region basic weight × camera maximum resolution;

[0100] Wherein, the region basic weight ∈ [0.5, 1];

[0101] According to the distance of the target (high definition is used for close targets, and definition is reduced for distant targets to protect privacy), the dynamic definition is calculated:

[0102] Dynamic definition = basic definition × e^(-k × distance)

[0103] Wherein, k is the attenuation coefficient, which can be configured, and the distance unit is meters;

[0104] According to the target sensitivity coefficient of the target type (reduce the definition for sensitive targets such as pedestrians and license plates, and maintain the definition for non-sensitive targets such as road signs), the final definition is calculated:

[0105] Final definition = dynamic definition × (1 - target sensitivity coefficient)

[0106] Wherein, the target sensitivity coefficient: pedestrian is 0.3, license plate is 0.5, and others are 0.

[0107] For example:

[0108] The basic weight of the commercial area is 0.8, and the basic definition is 80% of the maximum resolution.

[0109] Residential area base weight: 0.6, base clarity is 60% maximum resolution.

[0110] The attenuation coefficient k is set to 0.01, and the clarity is reduced to 37% of the base value at a distance of 100 meters.

[0111] The collection range strategy is to set different direction thresholds according to the collection direction of the camera:

[0112] The base threshold of the direction threshold is: 200 meters in front (long-distance monitoring), 50 meters on the side (medium-distance monitoring), and 100 meters behind (considering the field of view and privacy)

[0113] The calculation formula of the direction threshold is:

[0114] Direction threshold = base threshold × (1 + direction correction coefficient × sin²(θ))

[0115] Wherein, the direction threshold is dynamically adjusted according to the driving direction of the vehicle, θ is the angle between the target and the driving direction of the vehicle, and the direction correction coefficient ∈ [0, 0.5],

[0116] The area beyond the direction threshold is controlled for collection.

[0117] The collection control can be on the hardware level through lens angle or exposure control, physically not collecting the area beyond the threshold, or on the software level, marking the pixels beyond the threshold as invalid areas in the image.

[0118] The collection control can also be blur processing: Gaussian blur is performed on the area beyond the direction threshold but has been collected, and the blur radius is calculated according to the following formula:

[0119] Blur radius = (actual distance - direction threshold) × blur intensity coefficient,

[0120] Blur intensity coefficient: 0.1~0.5, configurable.

[0121] The above levels are defined as recommended settings, which can be defined according to the actual scene and are not limited to this grading method.

[0122] The method automatically switches the running state of the vehicle information collection device corresponding to different sensitive levels through the control module according to the sensitive limit level, so as to achieve different sensitive level settings at different places and ensure that the vehicle does not violate the requirements of the regulations.

Claims

1. A method for enabling and disabling vehicle information collection equipment according to vehicle location, characterized in that, a positioning module obtains the current location information of the vehicle through the Beidou / GPS satellite system and transmits the location information to the location analysis module; the location analysis module matches the location information with the content of the location database stored in the storage module to find the sensitive restriction level corresponding to the location information, and the location database contains sensitive restriction levels set for different locations; a control module controls the operating state of the vehicle information collection equipment according to the sensitive restriction level; the sensitive restriction level is divided in the following way: ordinary road conditions are classified as sensitive restriction level 1, which is a low sensitive level; crowded areas are classified as sensitive restriction level 2, which is a medium sensitive level; airports and transportation hubs are classified as sensitive restriction level 3, which is a high sensitive level; the control module controls the operating state of the information collection equipment according to the sensitive restriction level in the following way: sensitive restriction level 1, the control module has no restrictions on the information collection equipment, and all information collection equipment can be turned on with full functions; sensitive restriction level 2, the control module controls the information collection equipment to use only radar, and turns off all cameras; sensitive restriction level 3, the control module controls the information collection equipment to turn off all cameras and radar; the location database contains control strategies for the operating state of the information collection equipment corresponding to different sensitive restriction levels, and the control strategies include: clarity strategy, collection range strategy; the control module controls the operating state of the information collection equipment according to the control strategy corresponding to the sensitive restriction level; the clarity strategy adjusts the final clarity of the camera according to the sensitive restriction level, and the calculation method of the final clarity is as follows: first, calculate the basic clarity according to the preset regional basic weight corresponding to the sensitive restriction level and the maximum resolution of the camera: basic clarity = regional basic weight × camera maximum resolution; wherein, regional basic weight ∈ [0.5, 1]; second, calculate the dynamic clarity according to the principle of using high definition for close targets and reducing clarity for distant targets: dynamic clarity = basic clarity × e^(-k × distance) wherein, k is the attenuation coefficient, which can be configured, and the distance unit is meters; finally, calculate the final clarity according to the target sensitivity coefficient preset for the target type: final clarity = dynamic clarity × (1 - target sensitivity coefficient).

2. The method of claim 1, wherein the vehicle information collection device is turned on or off according to the vehicle position classification. The collection range strategy sets different direction thresholds according to the collection direction of the camera: The basic threshold of the direction threshold is set to a preset value according to the direction, including: front threshold, side threshold, and rear threshold, unit: meters, The calculation formula of the direction threshold is: direction threshold = basic threshold × (1 + direction correction coefficient × sin²(θ)) wherein, the basic threshold is dynamically adjusted according to the vehicle driving direction, θ is the angle between the target and the vehicle forward direction, and the direction correction coefficient ∈ [0, 0.5], regions exceeding the direction threshold are controlled.

3. The method of claim 2, wherein the vehicle information collection device is turned on or off according to the vehicle position classification. The acquisition control is a hardware level through lens angle or exposure control, physically not collecting the area exceeding the threshold, or a software level marking the pixels exceeding the threshold as invalid area in the image.

4. The method of claim 2, wherein the vehicle information collection device is turned on or off according to the vehicle position classification. The acquisition control is to perform blur processing: Gaussian blur is performed on the area exceeding the direction threshold but having been collected, and the blur radius is calculated according to the following formula: Blur radius = (actual distance - direction threshold) x blur intensity coefficient, Blur intensity coefficient: 0.1-0.5, configurable.

5. A system for classifying the on and off of a vehicle information collecting device according to the position of a vehicle, which applies the method according to any one of claims 1 to 4, characterized by Comprise: Positioning module, position analysis module, storage module, vehicle control module; The positioning module obtains the current position information of the vehicle through the Beidou / GPS satellite system, and transmits the position information to the position analysis module; The storage module stores a position database, which contains sensitive limit levels set for different locations; The vehicle control module is used to control the information acquisition equipment of the vehicle; The position analysis module matches the position information with the content of the position database to find out the sensitive limit level corresponding to the position information; The control module controls the running state of the information acquisition equipment of the vehicle according to the sensitive limit level, so as to achieve different sensitive level settings in different places and ensure that the vehicle does not violate the regulations.

6. A system for classifying the activation and deactivation of a vehicle information collection device according to the position of the vehicle as claimed in claim 5, wherein The information acquisition equipment includes a camera and a radar sensor.

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