CN115534868A - Vehicle and welcome control system for vehicle - Google Patents

Abstract

The invention discloses a vehicle and a welcome control system for the vehicle, wherein the system comprises: the intelligent entry modules are used for performing identity authentication on the intelligent key and ranging the intelligent key after the identity authentication is passed so as to obtain ranging information; the position decision module is used for acquiring the position information of the intelligent key according to the distance measuring information; the analysis module is used for analyzing and obtaining the movement trend of the intelligent key according to the position information; and the vehicle body control module is used for executing a corresponding welcome strategy according to the position information and the movement trend so as to control the vehicle to welcome guests. Therefore, accurate positioning can be achieved, the vehicle is controlled to execute a corresponding welcome strategy, vehicle intellectualization is achieved, vehicle flexibility is given, and good human-vehicle interaction experience is achieved.

Description

Vehicle and welcome control system for the vehicle

technical field

The invention relates to the technical field of automobile intelligence, in particular to a vehicle and a welcome control system for the vehicle.

Background technique

With the improvement of social living standards, the demand for cars from families and individuals has increased sharply. At the same time, people have higher and higher requirements for the comfort and intelligence of vehicles. Therefore, the welcome system of vehicles is more and more popular among people. .

At present, the welcome system on most vehicles detects the direct distance between the car key and the car through the Bluetooth sensor. Due to the characteristics of Bluetooth, the general positioning accuracy is 3-5 meters, which can only achieve fuzzy positioning and cannot accurately locate long distances. , and then it is impossible to achieve precise welcome area division and stability of the welcome function.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the first purpose of the present invention is to propose a welcome control system for vehicles, which can realize precise positioning, and control the vehicle to execute the corresponding welcome strategy, realize the intelligence of the vehicle, endow the vehicle with agility, and then realize Good human-vehicle interaction experience.

A second object of the invention is to propose a vehicle.

In order to achieve the above object, the embodiment of the first aspect of the present invention proposes a welcome control system for vehicles, including: a plurality of smart entry modules, each of which is used to authenticate the smart key, and After the identity authentication is passed, the distance measurement is performed on the smart key to obtain distance measurement information; the location decision module is used to obtain the location information of the smart key according to the distance measurement information; the analysis module is used to analyze and obtain the movement trend of the smart key according to the location information; The body control module is used to implement corresponding welcome strategy according to the location information and motion trend, so as to control the vehicle to welcome guests.

According to the welcome control system for vehicles according to the embodiment of the present invention, the smart key is authenticated by each smart entry module, and after the identity authentication is passed, the distance measurement is performed on the smart key to obtain distance measurement information, and the location information is passed. The decision-making module obtains the position information of the smart key according to the distance measurement information, and the movement trend of the smart key is obtained through the analysis module according to the position information analysis, so that the body control module executes the corresponding welcome strategy according to the position information and movement trend. As a result, precise positioning can be achieved, and the vehicle can be controlled to implement the corresponding welcome strategy to realize the intelligence of the vehicle, endow the vehicle with agility, and then realize a good human-vehicle interaction experience.

According to an embodiment of the present invention, the intelligent entry module is also used to authenticate the identity of the intelligent key by using an asymmetric encryption algorithm.

According to an embodiment of the present invention, the smart entry module is also used to measure the distance of the smart key based on ultra-wideband technology to obtain distance measurement information.

According to an embodiment of the present invention, the distance measurement information includes distance information, and the position decision module is specifically used to: take the position coordinates of each intelligent entry module as the center of the circle, and the corresponding distance information as the radius, generate multiple arcs, and obtain multiple The intersection point of two arcs can get the location information of the smart key.

According to an embodiment of the present invention, the analysis module is specifically configured to: analyze and obtain the movement trend of the smart key according to the change of the position information.

According to an embodiment of the present invention, the location information includes the angle information and distance information of the smart key, and the vehicle body control module is specifically used for: when it is determined according to the movement trend that the user has the intention to unlock the vehicle, perform corresponding welcome according to the angle information and distance information Strategy.

According to an embodiment of the present invention, the vehicle body control module is specifically configured to: when it is determined according to the distance information that the smart key is within the first distance range, control the vehicle's body lighting system to work according to the angle information; when it is determined according to the distance information that the smart key is within the first distance range When the distance is within the second distance, the suspension system of the vehicle is controlled according to the angle information; when the smart key is determined to be within the third distance according to the distance information, the body entertainment system of the vehicle is controlled according to the angle information.

According to an embodiment of the present invention, the multiple smart entry modules include four smart entry modules, and the four smart entry modules are respectively arranged at four corner positions of the vehicle.

In order to achieve the above purpose, the embodiment of the second aspect of the present invention provides a vehicle, including the above welcome control system for the vehicle.

According to the vehicle of the embodiment of the present invention, through the above-mentioned welcome control system for the vehicle, it can realize accurate positioning, and control the vehicle to execute the corresponding welcome strategy, realize the intelligentization of the vehicle, endow the vehicle with agility, and then realize a good human Car interaction experience.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

FIG. 1 is a schematic structural diagram of a welcome control system for a vehicle according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of obtaining location information of a smart key according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of a motion trajectory of a smart key according to an embodiment of the present invention;

FIG. 4 is a structural schematic diagram of a welcome control system for a vehicle according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of area division when executing a welcome strategy according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The vehicle and the welcome control system for the vehicle proposed by the embodiments of the present invention are described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a welcome control system for a vehicle according to an embodiment of the present invention. As shown in Fig. 1, the welcome control system for a vehicle may include: a plurality of intelligent entry modules (such as intelligent entry modules M1, M2, M3, M4, . . . ), a location decision module 120 , an analysis module 130 and a vehicle body control module 140 .

Wherein, each smart entry module is used for identity authentication of the smart key, and after the identity authentication is passed, distance measurement is performed on the smart key to obtain distance measurement information. The location decision module 120 is used to obtain location information of the smart key according to distance measurement information. The analysis module 130 is used to analyze and obtain the movement trend of the smart key according to the location information. The vehicle body control module 140 is used to implement a corresponding greeting policy according to the location information and movement trend, so as to control the vehicle to greet guests.

Specifically, the smart entry module can provide an identity authentication function to authenticate smart keys (such as but not limited to electronic keys, mobile phones, portable wearable smart devices, etc.) to confirm whether the smart keys are legal, thereby ensuring the identity of the vehicle safety. Optionally, the smart entry module can use an asymmetric encryption algorithm to perform identity authentication on the smart key, which can be implemented using existing technologies, and will not be described in detail here.

After the smart entry module confirms that the smart key is legal, the smart entry module can measure the distance of the smart key based on radio frequency technology to obtain ranging information, and send it to the position decision module 120, so that the position decision module 120 can obtain the distance information according to the distance measurement information. The location information of the smart key. Among them, due to the use of radio frequency technology for multi-point ranging, not only the direction (that is, the angle) of the smart key can be accurately known, but also the distance between the smart key and the vehicle can be accurately known, and the accuracy can reach cm level. The location information of the smart key has high precision. Optionally, the smart entry module can measure the distance of the smart key based on Ultra Wide Band (UWB) technology to obtain distance measurement information, perform multi-point distance measurement based on UWB technology, and finally obtain the location information of the smart key It has high precision, among which the distance positioning accuracy can reach within ±10cm, and the angle positioning accuracy can reach within ±3°.

After the location decision module 120 obtains the location information of the smart key according to the ranging information, it sends it to the analysis module 130, so that the analysis module 130 analyzes and obtains the movement trend of the smart key according to the location information. Among them, due to the use of radio frequency technology for multi-point ranging, not only can the direction of the smart key be accurately known, but also the distance between the smart key and the vehicle can be accurately known, with an accuracy of up to cm level, and the normal pace of a person is 50-60cm, so Every time the car owner takes a step, he can accurately determine the location of the smart key, thus achieving super location awareness.

Finally, the vehicle body control module 140 obtains and executes a corresponding welcome strategy according to the position information and movement trend, so as to realize the welcome function of the vehicle. It should be noted that the location information here is mainly used to determine the angle and distance between the smart key and the vehicle in space, and the motion track is mainly used to determine the movement direction of the smart key, and then determine the intention of the car owner. Therefore, when performing welcome control , it can be determined according to the movement trajectory whether the owner has the intention to unlock the vehicle, if so, according to the location information of the smart key, obtain and execute the corresponding welcome policy to realize the welcome function of the vehicle, so as to realize the intelligentization of the vehicle and give the vehicle Agility, and then achieve a good human-vehicle interaction experience.

In some embodiments, the distance measurement information includes distance information, and the position decision module 120 is further specifically configured to: take the position coordinates of each intelligent entry module as the center of the circle, and the corresponding distance information as the radius, generate multiple arcs, and obtain multiple The intersection point of two arcs can get the location information of the smart key.

For example, taking four smart entry modules as an example, as shown in Figure 2, they are respectively smart entry modules M1, M2, M3 and M4, and the four smart entry modules are evenly arranged around the vehicle, such as being arranged on the vehicle's At the four corner positions, each smart entry module measures the distance of the smart key based on radio frequency technology. Perform distance measurement to obtain the distances R1, R2 and R3 between the smart key and the vehicle, and send them to the location decision module 120 . Then, the position decision-making module 120 takes the position coordinates of the intelligent entry module M1 as the center of the circle, and the corresponding distance R1 as the radius to generate the first circular arc. The second circular arc takes the location coordinates of the smart entry module M3 as the center and the corresponding distance R3 as the radius to generate the third circular arc. These three circular arcs finally intersect at a point A1, which is the position of the smart key information.

Therefore, the location information of the smart key can be obtained quickly and accurately based on the multi-point ranging of the radio frequency technology.

In some embodiments, the analysis module 130 is specifically configured to: analyze and obtain the movement trend of the smart key according to changes in location information. Specifically, multiple smart entry modules can be used for distance measurement for a period of time, and the location decision module 120 can be used to analyze and record the location information of the smart key. Due to the multi-point distance measurement based on radio frequency technology, the positioning accuracy can reach cm level. The normal pace of a person is 50-60cm, so every step taken by the car owner can be accurately recorded, and based on a series of recorded position information, the movement trend of the smart key can be accurately judged. As shown in Figure 3, A1, A2, A3, A4, ..., An represent the position information of the smart key, and the movement trend of the smart key can be obtained according to these position information, and the owner's intention can be accurately obtained based on the movement trend. If the smart key is at A1 at the previous moment and at A2 at the next moment, it can be determined that the smart key is facing the vehicle, so that it can be determined that the owner has the intention of approaching the vehicle to unlock the vehicle.

Further, in some embodiments, the location information includes the angle information and distance information of the smart key, and the vehicle body control module 140 is specifically configured to: when it is determined according to the movement trend that the user intends to unlock the vehicle, perform corresponding actions according to the angle information and distance information. Welcome policy.

That is to say, when the vehicle body control module 140 determines that the user intends to unlock the vehicle according to the movement trend, it also acquires and executes a corresponding welcome strategy according to the angle information and distance information of the smart key. Among them, the angle information is mainly used to determine which direction the smart key is in the vehicle, such as front, rear, left and rear, and the distance information is mainly used to determine the distance between the smart key and the vehicle.

In some embodiments, the body control module 140 is specifically configured to: when it is determined according to the distance information that the smart key is within the first distance range, control the vehicle's body lighting system to work according to the angle information; when it is determined according to the distance information that the smart key is within the second range When the distance is within the range, the suspension system of the vehicle is controlled according to the angle information; when the smart key is determined to be within the third distance according to the distance information, the body entertainment system of the vehicle is controlled according to the angle information.

Specifically, as shown in FIG. 4 and FIG. 5, when it is determined according to the trajectory of the smart key that the owner is carrying the smart key and approaches the vehicle from a distance, when the distance between the smart key and the vehicle is within the first distance range, that is, When the smart key is in the area d1, the body control module 140 sends corresponding control commands to the body lighting system 151 according to the angle information, so that the body lighting system 151 executes corresponding commands to control the body lights, for example, turn on the welcome light of the vehicle on the side of the vehicle owner approaching the area Or execute the set welcome lights, etc.; if the owner continues to bring the smart key close to the vehicle, when the distance between the smart key and the vehicle is within the second distance range, that is, when the smart key is in the area d2, the body control module 140 Send corresponding control commands to the suspension system 152 according to the angle information, so that the suspension system 152 executes corresponding commands to control the suspension of the vehicle body. Continue to carry the smart key close to the vehicle, when the distance between the smart key and the vehicle is within the third distance range, that is, when the smart key is in the area d3, the body control module 140 sends corresponding control commands to the body entertainment system 153 according to the angle information In order to make the vehicle body entertainment system 153 send the preset welcome music or welcome sound effect data to the speaker, and play it through the speaker, so as to realize the personalized welcome. Therefore, through the body lighting system, suspension system and body entertainment system, the three-dimensional welcome of vision and hearing can be realized, and the personalized and intelligent welcome of the vehicle can be realized.

It should be noted that here only the body lighting system, suspension system and body entertainment system are used as examples for illustration. In practical applications, other welcome methods can also be added, and there is no limitation here.

In some embodiments, as shown in FIG. 4 , the welcome control system of the vehicle further includes: a vehicle state monitoring module 160, configured to acquire state information of the vehicle; The state information of the vehicle implements the corresponding welcome strategy to control the vehicle for greeting.

That is to say, when executing the corresponding welcome strategy, the vehicle body control module 140 also obtains the status information of the vehicle through the vehicle status monitoring module 160 to determine whether the vehicle is in a normal working state and locked state, and if so, then according to the position Information and motion trends implement the corresponding welcome strategy to control the vehicle for greeting.

In summary, according to the welcome control system for vehicles according to the embodiment of the present invention, before the vehicle is unlocked, the movement trend, distance information and angle information of the smart key can be accurately determined based on radio frequency technology, and then according to the movement trend, The distance information and angle information implement the corresponding welcome strategy, realize the three-dimensional welcome of vision and hearing, and endow the vehicle with flexibility, thus making the vehicle more intelligent.

FIG. 6 is a block diagram of a vehicle according to an embodiment of the present invention. Referring to FIG. 6 , the vehicle 1000 includes the aforementioned welcome control system 100 for a vehicle.

According to the vehicle of this embodiment, through the above-mentioned welcome control system for the vehicle, it is possible to accurately determine the movement trend, distance information and angle information of the smart key based on radio frequency technology before the vehicle is unlocked, and then according to the movement trend, distance The information and angle information implement the corresponding welcome strategy, realize the three-dimensional welcome of vision and hearing, and endow the vehicle with flexibility, thus making the vehicle more intelligent.

It should be noted that the logic and/or steps shown in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, apparatus, or device and execute instructions), or in combination with these Instructions are used to execute systems, devices, or equipment. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. processing to obtain the program electronically and store it in computer memory.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the above described embodiments, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A welcome control system for a vehicle, comprising:

the intelligent entry modules are used for performing identity authentication on an intelligent key and ranging the intelligent key after the identity authentication is passed so as to obtain ranging information;

the position decision module is used for acquiring the position information of the intelligent key according to the ranging information;

the analysis module is used for analyzing and obtaining the movement trend of the intelligent key according to the position information;

and the vehicle body control module is used for executing a corresponding welcome strategy according to the position information and the movement trend so as to control the vehicle to welcome guests.

2. The system of claim 1, wherein the smart entry module is configured to authenticate the fob using an asymmetric encryption algorithm.

3. The system of claim 1, wherein the smart entry module is configured to perform ranging on the smart key based on ultra-wideband technology to obtain ranging information.

4. The welcome control system for a vehicle as claimed in any one of claims 1 to 3, wherein the ranging information comprises distance information, the position decision module being specifically configured to:

and generating a plurality of circular arcs by taking the position coordinate of each intelligent access module as a circle center and the corresponding distance information as a radius, and acquiring intersection points of the plurality of circular arcs to obtain the position information of the intelligent key.

5. A welcome control system as claimed in any one of claims 1 to 3 wherein the analysis module is specifically configured to:

and analyzing and obtaining the movement trend of the intelligent key according to the change condition of the position information.

6. The welcome control system for a vehicle according to claim 1, wherein the position information includes angle information and distance information of the smart key, the vehicle body control module is specifically configured to:

and when the user is determined to have the intention of unlocking the vehicle according to the movement trend, executing a corresponding welcome strategy according to the angle information and the distance information.

7. The welcome control system for a vehicle according to claim 6, wherein the body control module is specifically configured to:

when the intelligent key is determined to be in a first distance range according to the distance information, controlling a vehicle body lighting system of the vehicle to work according to the angle information;

when the intelligent key is determined to be in a second distance range according to the distance information, controlling the suspension system of the vehicle to act according to the angle information;

and when the intelligent key is determined to be in a third distance range according to the distance information, controlling the vehicle body entertainment system of the vehicle to work according to the angle information.

8. The welcome control system for a vehicle according to claim 6 or 7, further comprising:

the vehicle state monitoring module is used for acquiring state information of the vehicle;

the vehicle body control module is further used for executing a corresponding welcome strategy according to the position information, the movement trend and the state information of the vehicle so as to control the vehicle to welcome guests.

9. The guest control system for a vehicle of claim 1, wherein the plurality of smart entry modules includes four smart entry modules, the four smart entry modules being disposed at four apex angles of the vehicle, respectively.

10. A vehicle characterized by comprising the welcome control system for a vehicle as claimed in any one of claims 1 to 9.

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