CN116709294A

CN116709294A - Automatic switching method and device for vehicle network and storage medium

Info

Publication number: CN116709294A
Application number: CN202310713441.5A
Authority: CN
Inventors: 汪星星; 唐如意
Original assignee: Chengdu Seres Technology Co Ltd
Current assignee: Chongqing Selis Phoenix Intelligent Innovation Technology Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-09-05

Abstract

The application provides a vehicle network automatic switching method, a device and a storage medium. The method comprises the following steps: acquiring a navigation road section of a vehicle, and dividing the navigation road section into a plurality of road section sections according to the network speed difference of a network operator; when judging that the vehicle drives into the network speed approaching section from the network speed difference section, keeping the current SIM card for network connection; when judging that the vehicle drives into the network speed difference road section from the network speed approaching road section, acquiring the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be driven into, and comparing the average network speed with the required network speed; when the average network speed of the current SIM card is not lower than the required network speed, the current SIM card is kept to be connected with the network, and when the average network speed of the current SIM card is lower than the required network speed, the current SIM card is switched at the network speed difference road section to be driven in. According to the vehicle networking method and device, the quality and stability of the vehicle networking are improved, the use experience of a user on the vehicle-mounted network is improved, and the driving experience of the user is enhanced.

Description

Automatic switching method and device for vehicle network and storage medium

Technical Field

The present application relates to the technical field of new energy automobiles, and in particular, to a method and apparatus for automatically switching a vehicle network, and a storage medium.

Background

With rapid development of information technology, the integration of the internet and the automobile industry is increasingly deepened, and the internet of vehicles technology gradually becomes an important development trend of the automobile industry. Among them, the remote communication terminal Tbox plays a key role in realizing the vehicle networking function. The Tbox integrates a vehicle body network and a wireless communication function, is usually based on an Android or Linux operating system, contains one or more SIM cards, and realizes a networking function through the SIM cards.

However, the application option of the SIM card in the Tbox is mainly set by the user, which brings about some problems in practical application. In one aspect, different SIM cards may correspond to different network operators, but there are significant differences in network coverage areas and quality for the different operators. This may cause the user to experience a situation that the vehicle network is on or cannot be connected due to uneven coverage or poor signal quality of the currently selected operator network during the driving process, thereby causing adverse effects on the driving experience of the user. On the other hand, the existing Tbox usually only relies on the user to manually switch the SIM card to solve the problem of uneven network coverage, and the method is complex in operation, and in the actual running process, the user may not be able to know the change of the network state in time, so that a timely SIM card switching decision cannot be made.

Disclosure of Invention

In view of the above, the embodiments of the present application provide a method, an apparatus, and a storage medium for automatically switching a vehicle network, so as to solve the problems in the prior art that the use experience of a vehicle network is reduced and the quality and stability of the vehicle network are poor because the intelligent network switching of the vehicle cannot be realized.

In a first aspect of an embodiment of the present application, there is provided a vehicle network automatic switching method, including: the method comprises the steps of obtaining a navigation road section of a vehicle, and dividing the navigation road section into a plurality of road section sections according to the network speed difference of a network operator, wherein the road section sections comprise network speed approaching road sections and network speed difference road sections; when the vehicle is judged to drive into a network speed approaching section from a network speed difference section in the running process of the vehicle, the current SIM card is kept to be connected with the network; when judging that the vehicle enters the network speed difference road section from the network speed approaching road section, judging whether the network speed of the current SIM card corresponding to the network speed difference road section to be entered meets the preset requirement, and when the network speed of the current SIM card meets the preset requirement, keeping the current SIM card to be connected with the network; when the preset requirement is not met, acquiring the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be driven in, and comparing the average network speed of the current SIM card with the required network speed; when the average network speed of the current SIM card is not lower than the required network speed, the current SIM card is kept to be connected with the network, when the average network speed of the current SIM card is lower than the required network speed, the current SIM card is switched on a network speed difference road section to be driven in, and the vehicle is enabled to enter a switching preparation mode.

In a second aspect of an embodiment of the present application, there is provided a vehicle network automatic switching device, including: the system comprises a dividing module, a control module and a control module, wherein the dividing module is configured to acquire a navigation road section of a vehicle, divide the navigation road section into a plurality of road section sections according to the network speed difference of a network operator, and the road section sections comprise network speed approaching road sections and network speed difference road sections; the first judging module is configured to keep the current SIM card to be connected with the network when judging that the vehicle enters the network speed approaching section from the network speed difference section in the running process of the vehicle; the second judging module is configured to judge whether the network speed of the current SIM card corresponding to the network speed difference road section to be driven in meets the preset requirement when judging that the vehicle drives in the network speed difference road section from the network speed approaching road section, and keep the current SIM card to be connected with the network when meeting the preset requirement; the comparison module is configured to acquire the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be driven in when the preset requirement is not met, and compare the average network speed of the current SIM card with the required network speed; and the switching module is configured to keep the current SIM card to be connected with the network when the average network speed of the current SIM card is not lower than the required network speed, switch the current SIM card on a network speed difference road section to be driven in when the average network speed of the current SIM card is lower than the required network speed, and enable the vehicle to enter a switching preparation mode.

In a third aspect of the embodiments of the present application, there is provided a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the above method.

The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:

dividing a navigation road section into a plurality of road section sections according to the network speed difference of a network operator by acquiring the navigation road section of the vehicle, wherein the road section sections comprise a network speed approaching road section and a network speed difference road section; when the vehicle is judged to drive into a network speed approaching section from a network speed difference section in the running process of the vehicle, the current SIM card is kept to be connected with the network; when judging that the vehicle enters the network speed difference road section from the network speed approaching road section, judging whether the network speed of the current SIM card corresponding to the network speed difference road section to be entered meets the preset requirement, and when the network speed of the current SIM card meets the preset requirement, keeping the current SIM card to be connected with the network; when the preset requirement is not met, acquiring the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be driven in, and comparing the average network speed of the current SIM card with the required network speed; when the average network speed of the current SIM card is not lower than the required network speed, the current SIM card is kept to be connected with the network, when the average network speed of the current SIM card is lower than the required network speed, the current SIM card is switched on a network speed difference road section to be driven in, and the vehicle is enabled to enter a switching preparation mode. The application can automatically adjust the selection of the SIM card according to the change of the network state so as to improve the quality and stability of the vehicle networking, improve the use experience of a user on the vehicle-mounted network and improve the vehicle driving experience of the user.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic architecture diagram of a vehicle network automatic switching system according to an embodiment of the present application in an actual application scenario;

fig. 2 is a schematic flow chart of a vehicle network automatic switching method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a vehicle network automatic switching device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

In the field of new energy automobiles, tbox is called as a Telematics Box, is short for a remote communication terminal, and is a device integrating a vehicle body network and a wireless communication function. It is generally based on an operating system such as Android, linux and has a communication function as a communication part of a vehicle. The Tbox implements networking functions by embedding one or more SIM cards, which may correspond to different operators, respectively, providing the user with freedom to select network operators. However, the network coverage of the operator is not always uniform, and thus the user may encounter unstable network connection in some places, resulting in degradation of the use experience of the in-vehicle network. In some cases, the car may not even be networked at all, affecting the driving experience.

In the new energy automobile, the Tbox not only provides networking services, but also provides services such as remote diagnosis, remote control, emergency call, navigation, etc. of the vehicle, and provides communication support for more advanced functions such as automatic driving of the vehicle, networking of vehicles, etc.

In view of the problems existing in the prior art, the embodiment of the application provides a vehicle network automatic switching method. According to the embodiment of the application, the optimal SIM card is dynamically selected for network connection according to the network signal condition of the vehicle driving route and the network demand of the current vehicle, so that the quality and stability of the vehicle networking are optimized. Specifically, the application can select and switch the SIM card according to the road section type where the current vehicle is and the pre-determined road section type by acquiring the navigation road section of the vehicle and dividing the navigation road section into a plurality of road section sections according to the network speed difference of the network operator, wherein the road section sections respectively comprise the network speed approaching road section and the network speed difference road section. When the vehicle enters the network speed approaching section from the network speed difference section, the current SIM card can be kept to be connected with the network, and because the network quality of each network operator is similar in the network speed approaching section, frequent switching is not needed. When a vehicle enters a network speed difference road section from a network speed approaching road section, the application judges whether the network speed of the current SIM card corresponding to the network speed difference road section to be entered meets the preset requirement, if not, the application decides whether SIM card switching is needed according to the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be entered, thereby enabling the vehicle to be always networked under the network of an operator with the best network quality. According to the application, by introducing dynamic pre-judgment on the network state of the driving road section and real-time evaluation on the network demand, the automatic optimization of the vehicle-mounted network is realized, and the stability of the vehicle networking and the driving experience of a user are greatly improved.

In addition, the method and the system also compare the recorded actual network speed of each road section interval with the expected network speed of each road section interval issued by the cloud server through the whole vehicle controller, and upload the actual network speed of the road section interval to the cloud server when the difference between the actual network speed and the expected network speed is larger than a threshold value, so that the cloud server can update the expected network speed by utilizing the actual network speed data, the prediction accuracy is improved, more accurate network switching is realized, and the quality and stability of vehicle networking are further improved.

Fig. 1 is a schematic architecture diagram of a vehicle network automatic switching system according to an embodiment of the present application in an actual application scenario. As shown in fig. 1, the vehicle network automatic switching system includes a vehicle-mounted infotainment system IVI, a mobile terminal, a vehicle controller VCU, a cloud server, and a Tbox; the vehicle-mounted information entertainment system IVI and a mobile terminal (such as a mobile phone) user send navigation information to the vehicle control unit VCU, the cloud server is used for transmitting the navigation information and network speed conditions of different road sections and dividing the road sections, and the vehicle control unit VCU is used for sending a switching instruction to the Tbox, so that the Tbox switches the SIM card according to the current network conditions, and network quality in a driving process is improved.

According to the vehicle network automatic switching system, the travel route (namely the navigation road section of the vehicle) of the user is known based on the navigation information or the driving habit of the user, the network condition of each operator on the navigation road section is known based on the cloud interconnection technology, the networking switching of the SIM card is intelligently completed according to the acquired network condition and the network condition of the vehicle, and the network speed corresponding to the network operator which is optimally adapted to the vehicle running on each road section is ensured.

The following describes the technical scheme of the present application in detail with reference to the accompanying drawings and specific embodiments.

Fig. 2 is a flow chart of a vehicle network automatic switching method according to an embodiment of the present application. The vehicle network automatic switching method of fig. 2 may be performed by a cloud server or a whole vehicle controller. As shown in fig. 2, the vehicle network automatic switching method specifically may include:

s201, acquiring a navigation road section of a vehicle, and dividing the navigation road section into a plurality of road section sections according to the network speed difference of a network operator, wherein the road section sections comprise a network speed approaching road section and a network speed difference road section;

s202, when the vehicle is judged to be driven into a network speed approaching section from a network speed difference section in the running process of the vehicle, the current SIM card is kept to be connected with the network;

S203, when judging that the vehicle drives into the network speed difference road section from the network speed approaching road section, judging whether the network speed of the current SIM card corresponding to the network speed difference road section to be driven in meets the preset requirement, and when meeting the preset requirement, keeping the current SIM card to be connected with the network;

s204, when the preset requirement is not met, acquiring the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be driven in, and comparing the average network speed of the current SIM card with the required network speed;

and S205, when the average network speed of the current SIM card is not lower than the required network speed, the current SIM card is kept to be connected with the network, and when the average network speed of the current SIM card is lower than the required network speed, the current SIM card is switched on a network speed difference road section to be driven in, and the vehicle is made to enter a switching preparation mode.

In the embodiment of the application, the SIM card refers to a subscriber identity module card (Subscriber Identity Module Card) used in a vehicle-mounted communication device (Telematics Box, TBOX). The SIM card is provided by each network operator and stores key information identifying and authenticating the user, allowing the in-vehicle device to connect to the operator's network.

In the application environment of the embodiment of the application, the SIM card is used for realizing the networking function of the vehicle-mounted equipment, so that the vehicle can access the Internet to transmit and receive data. In practice, the TBOX may contain one or more SIM cards, each corresponding to a different network operator. According to the embodiment of the application, the most suitable SIM card is automatically selected for network connection according to the road section on which the vehicle runs and the corresponding network condition, so that the quality and stability of the networking of the vehicle are optimized.

In some embodiments, obtaining a navigation section of a vehicle, dividing the navigation section into a plurality of section sections according to a network speed difference of a network operator, includes: the method comprises the steps of acquiring a navigation road section of a vehicle from a user mobile phone navigation application program or a vehicle machine navigation application program, acquiring network speeds corresponding to continuous positions of the navigation road section of each network operator acquired in advance by utilizing a data acquisition vehicle, and dividing the navigation road section by utilizing the network speeds of the network operators at the continuous positions to obtain a plurality of road section sections.

Specifically, firstly, the vehicle navigation road section selected by the user is acquired, and in practical application, the navigation road section information selected by the user can be acquired through the navigation APP of the mobile phone of the user or the navigation APP of the vehicle. After the navigation road section information is obtained, the obtained navigation road section is divided according to the network speed difference conditions of each network operator at different positions in the road section, so that a plurality of road section sections are obtained.

In one example, the data collection vehicle may be used to collect network speed information of each network operator at continuous positions of the navigation section in advance, where the network operators may include mobile, connected, telecommunication, etc., so as to determine an original network speed corresponding to each position of the navigation section by each network operator, and then divide the navigation section according to the original network speed information, so as to finally obtain a plurality of section intervals.

In some embodiments, dividing the navigation road segments to obtain a plurality of road segment intervals by using network speeds of network operators at continuous positions includes: determining the network speed difference of continuous positions of each network operator in the navigation road section, setting a road section with the network speed difference smaller than a network speed threshold value between each network operator as a network speed approaching road section, and setting a road section with the network speed difference larger than the network speed threshold value between at least two network operators as a network speed difference road section; and acquiring the road section length corresponding to the road section with the different road speed, and setting the road section with the different road speed, the road section length of which is smaller than the preset road section length, as the road section with the approaching road speed.

Specifically, the embodiment of the application divides the navigation road section into two different types of road section sections based on the network speed difference of different network operators at each position of the navigation road section, namely a network speed approaching road section and a network speed difference road section. In practical applications, the network speed approaching road segments are used for representing road segments with the network speed difference between the network operators being smaller than the network speed threshold, and the network speed difference road segments are used for representing road segments with the network speed difference between at least two network operators being larger than the network speed threshold.

Further, the embodiment of the application also obtains the average network speed of the SIM card corresponding to each network operator in each network speed difference road section, and also needs to process the network speed difference road sections obtained through preliminary division, compares the road section length of each network speed difference road section with the preset road section length, and modifies the network speed difference road section with the road section length smaller than the preset road section length into a network speed approaching road section, thereby avoiding frequent switching of the SIM card caused by the shorter network speed difference road section.

In one example, assume the case where the TBOX in the vehicle has only two different operators' SIM cards onboard. In this case, the road segment division situation corresponding to the respective two operators can be found. That is, when the network speeds of two operators are approaching, they are regarded as network speed approaching sections; when the network speed difference between two operators is larger than the threshold value, the network speed difference is taken as a network speed difference road section.

According to the technical scheme provided by the embodiment, road sections are accurately divided according to the network speed difference of different network operators at the positions of each navigation road section, so that the optimal network is automatically selected for connection according to the network conditions of different road sections in the running process of a vehicle, and the networking experience of the vehicle is optimized.

In some embodiments, the network speed threshold is determined in the following manner, including: the network speed threshold is set based on the preset function requirement of the vehicle, or the network speed threshold is dynamically determined based on the minimum network speed of the SIM card corresponding to each network operator and the preset constant, and the network speed threshold is equal to the minimum network speed of the SIM card divided by the constant.

Specifically, the network speed threshold is selected depending on the network speed required by the vehicle, and the threshold can be either a preset fixed threshold or a dynamically determined threshold to adapt to different network speed conditions. The following description describes a manner of determining the network speed threshold in connection with a specific embodiment, and may specifically include the following:

in one example, the net speed threshold is set based on a preset vehicle's functional requirements, where the net speed threshold is determined by the minimum net speed required to implement the vehicle's requisite functions, such as: a song listening function, a navigation function, etc. In practical applications, the developer may determine this threshold in advance according to the requirements of the vehicle, for example, set the network speed threshold to 1Mbps.

In another example, the network speed threshold may also be dynamically determined based on a minimum network speed of the respective network operator's corresponding SIM card and a preset constant, for example: the calculation formula of the network speed threshold T is as follows: t=s/K, i.e. the network speed threshold is equal to the minimum network speed of the SIM card divided by a constant. Here, T represents a threshold of the network speed, K represents a predetermined constant (for example, K may be set to 2), and S represents a network speed corresponding to an operator with the slowest network speed among the plurality of operators, that is, a network speed of a SIM card corresponding to an operator with the slowest network speed is selected as S among all the network operators. By dynamically calculating the network speed threshold in this way, the division of the navigation road segments can be realized based on the relative difference between the network speeds, thereby enhancing the rationality of road segment division.

Alternatively, assume that there are two operators with network speeds S1 and S2, respectively. When s1=1mbps and s2=11 Mbps, the absolute difference between the two is 10Mbps. Using the above formula, the net speed threshold t=s1/k=0.5 Mbps can be calculated. Since this value is smaller than the absolute difference between the two, it is divided into network speed difference sections. For another example, when s1=100 Mbps and s2=110 Mbps, the absolute difference between the two is still 10Mbps. But the calculated net speed threshold t=s1/k=50 Mbps is larger than the absolute difference between the two, and is thus divided into net speed approaching sections.

By the network speed threshold determining method provided by the embodiment, the setting of the network speed threshold can reflect the relative difference of the network speed, not just the absolute difference. Therefore, reasonable road section division can be obtained under the condition of small network speed or large network speed. Thus, the requirements of vehicle functions are met, and the accuracy and rationality of road section division are improved.

In some embodiments, the method further comprises: when the vehicle is started, determining the road section type corresponding to the current starting place of the vehicle, and when the road section type is a network speed difference road section, selecting a SIM card corresponding to a network operator with the highest network speed in the network speed difference road section for network connection; when the road section type is a network speed approaching road section, judging whether a network speed difference road section exists in the navigation road section, if the network speed difference road section does not exist, selecting a SIM card corresponding to a network operator with the highest preset priority for network connection, and if the network speed difference road section exists, selecting the SIM card corresponding to the network operator with the highest occurrence frequency for network connection based on the occurrence frequency of the SIM card corresponding to the network operator with the highest network speed in each network speed difference road section.

Specifically, for network selection when the vehicle starts, a proper SIM card is selected for first networking based on the type of a road section to which a starting place belongs and network speed. That is, when the vehicle is started, the road section type corresponding to the current starting place of the vehicle is determined, and the SIM card corresponding to the corresponding network operator is selected according to the road section type to perform network connection.

Further, first, when the vehicle starts, it is necessary to determine the road segment type corresponding to the current starting location of the vehicle. The foregoing embodiments have discussed how to divide a navigation section into a plurality of section sections including a network speed difference section and a network speed approaching section according to a network speed difference of a network operator. And if the road section type corresponding to the current starting place is the network speed difference road section, selecting a SIM card corresponding to a network operator with the highest network speed in the network speed difference road section for network connection. This is because there is a significant difference in network speeds of different network operators in such a road section, and thus, selecting a network operator with the highest network speed will be able to provide the vehicle with the optimal network service.

However, if the road segment type corresponding to the current starting location is a network speed approaching road segment, the embodiment of the present application further judges whether a network speed difference road segment exists in the navigation road segment. And if the network speed difference road section does not exist, selecting a SIM card corresponding to the network operator with the highest preset priority to perform network connection. This is because in this case, since the network speeds of the respective network operators are not greatly different, the SIM card can be selected according to a preset priority.

Further, if the network speed difference road sections exist in the navigation road sections, the application selects the SIM card corresponding to the network operator with the highest occurrence frequency to carry out network connection based on the occurrence frequency of the SIM card corresponding to the network operator with the highest network speed in each network speed difference road section. In practical application, firstly, the SIM card with the fastest network speed is found out in each network speed difference road section, and the occurrence frequency of the SIM cards of different operators is counted. Then, the SIM card with the highest occurrence frequency is used as the initial optimal SIM card. If there are SIM cards with the same frequency, further screening may be performed based on the length of the SIM card in the road section, for example: and selecting the SIM card with the longest road section length corresponding to the SIM card from the SIM cards of the network operators with the highest occurrence frequency as the networking SIM card.

According to the technical scheme provided by the embodiment, the vehicle can be ensured to select the optimal network connection under any condition, so that the network performance of the vehicle is maximized, and the stability and the user experience of the vehicle navigation and other online functions are improved.

In some embodiments, determining whether the network speed of the current SIM card corresponding to the network speed difference section to be driven in meets a preset requirement, and when the network speed meets the preset requirement, maintaining the current SIM card to perform network connection includes: and acquiring the network speeds of the SIM cards of the network operators corresponding to the network speed difference road sections to be driven in, judging whether the current SIM card is the SIM card with the highest network speed, and when the current SIM card is the SIM card with the highest network speed, keeping the current SIM card to be connected with the network.

Specifically, in the running process of the vehicle, the embodiment of the application determines whether the SIM card needs to be switched according to different road sections to which the vehicle is about to run and the network speed requirement of the vehicle. When the vehicle needs to drive into the network speed approaching section from the network speed difference section, the SIM card is not switched at the moment, but the current SIM card is maintained to be connected with the network. This is because the network speed difference between network operators is small in the network speed approaching section, and thus the current SIM card can still meet the network speed requirement of the vehicle.

Further, when a vehicle needs to drive into a differential network speed segment from a near network speed segment, embodiments of the present application may begin determining N meters (e.g., 30 meters) from the differential network speed segment. Firstly, the network speed of the SIM card of each network operator corresponding to the network speed difference road section to be driven in is obtained, and whether the current SIM card is the SIM card with the highest network speed is judged. If the current SIM card is the SIM card with the highest network speed, the current SIM card is kept to be connected with the network. Otherwise, the network speed required by the current vehicle and the average network speed of the current SIM card of the next road segment are obtained. If the average network speed is higher than the required network speed, the current SIM card is still kept to be connected with the network; if the average network speed is smaller than the required network speed, determining that networking switching is required in the next path segment, and entering a switching preparation mode.

In some embodiments, after the vehicle is put into the switch ready mode, the method further comprises: acquiring a current application program function of the vehicle, caching data generated by the current application program function, monitoring a preset network switching trigger condition, and switching a current SIM card of the vehicle when the vehicle meets the network switching trigger condition.

Specifically, after the vehicle enters a switching preparation mode, the current application program function of the vehicle is acquired, data generated by the application program function is cached, a preset network switching trigger condition is monitored, and when the vehicle meets the network switching trigger condition, the operation of SIM card switching is performed. The following details of the data buffering of the application function and the network handover triggering condition are described in connection with the specific embodiments, which may specifically include the following:

when the vehicle enters the switch preparation mode, various application functions currently running on the vehicle are first acquired, including but not limited to navigation, music playing, autopilot analysis, high-precision maps, etc. In order to ensure that the short network speed interruption caused by the SIM card switching does not cause bad experience to the running of the vehicle in the network switching process, the vehicle can buffer the data generated by the application program functions. For example: the vehicle may download a part of music in advance or load data of a high-definition map in advance to buffer network speed fluctuation possibly generated in the network switching process.

And the vehicle monitors the preset network switching triggering condition in real time while caching the data. In practical applications, the network switching trigger conditions may include that a piece of music is played, navigation is not needed in the front 300m, and voice call is finished. When the vehicle meets the network switching triggering conditions, the SIM card is switched. By the method, the user use influence caused by network switching can be reduced as much as possible, and the user experience is improved.

Further, in the driving process, the vehicle controller VCU records actual network speeds corresponding to each road section interval, when detecting that the network speeds of at least two road section intervals issued by the cloud are inconsistent with the actual network speeds, closes a function of automatically adjusting the SIM card based on the road section network speeds, checks whether the current network speed of the SIM card meets the internet surfing requirements of the user, if so, continues to use the current SIM card for networking, if not, adopts other SIM cards for network speed testing, and uses the SIM card with the fastest actual network speed as a subsequent SIM card for networking.

In some embodiments, the method further comprises: and comparing the recorded actual network speed of each road section interval with the expected network speed of each road section interval issued by the cloud server by using the whole vehicle controller, and uploading the actual network speed of the road section interval to the cloud server when the difference between the actual network speed and the expected network speed is greater than a threshold value, so that the cloud server can update the expected network speed by using the actual network speed of the road section interval.

Specifically, after the vehicle is driven, the whole vehicle controller firstly compares the recorded actual network speed of each road section interval with the expected network speed of the corresponding road section interval issued by the cloud server. The purpose of this comparison is to verify whether the difference between the actual network speed and the expected network speed exceeds a set threshold, which may be a fixed value or a value calculated dynamically according to a specific algorithm.

If the difference between the actual network speed and the expected network speed of a certain road section interval is found to exceed the set threshold value, the whole vehicle controller uploads the actual network speed of the road section interval to the cloud server. Therefore, the cloud server can be helped to acquire and update the network speed data of the road section interval in real time, and accuracy and practicability of expected network speed are guaranteed.

Further, after receiving the new actual network speed data, the cloud server uses the data to update the original expected network speed. The updating mode can be to simply replace original data, or to perform data fusion or optimization through an algorithm. This process can help the cloud server provide more accurate expected network speed information, thereby helping the subsequently traveling vehicles to better plan and select network connection strategies.

According to the technical scheme provided by the embodiment, the method can effectively utilize the real network speed data acquired in real time and the powerful computing power of the cloud server, realize accurate prediction and real-time update of the network speed of the road section interval, provide more accurate and practical decision basis for vehicle-mounted network connection, and improve the quality of vehicle-mounted network service and user experience.

According to the technical scheme provided by the embodiment of the application, firstly, road sections are divided based on the network speed difference, so that the SIM card with the optimal network speed of each road section can be determined based on the road sections after the vehicle-to-machine system acquires the user journey. By intelligently switching the SIM cards in the TBOX in the corresponding road sections, the vehicle can know the optimal SIM card application strategy for the navigation in advance and execute the operation strategy. The strategy not only improves the stability of the network speed of the vehicle and the machine, but also plays the network speed performance of different network operators as much as possible. Secondly, by dynamically switching the SIM card, the application optimizes the network experience of the vehicle. Particularly, in the running process of the vehicle, the SIM card is intelligently switched according to the actual network speed and the requirements of application programs so as to realize the optimal network connection state. This not only provides a stable and high quality in-vehicle network service, but also improves the user experience. Finally, the application updates the expected network speed in real time through the actual network speed data collected by the whole vehicle controller and the cloud server, so that the future network speed prediction is more accurate. In this process, the vehicle dynamically selects the most suitable network connection according to the actual situation and requirements, thereby maximizing the network performance and user experience of the vehicle.

In conclusion, the technical scheme of the application realizes the intellectualization and individuation of the vehicle-mounted network, provides stable and high-quality vehicle-mounted network service, remarkably enhances the user experience, and has important practical value and wide application prospect.

The following are examples of the apparatus of the present application that may be used to perform the method embodiments of the present application. For details not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the method of the present application.

Fig. 3 is a schematic structural diagram of an automatic switching device for a vehicle network according to an embodiment of the present application. As shown in fig. 3, the vehicle network automatic switching device includes:

the dividing module 301 is configured to obtain a navigation section of the vehicle, and divide the navigation section into a plurality of section sections according to a network speed difference of a network operator, wherein the section sections include a network speed approaching section and a network speed difference section;

a first judging module 302 configured to keep the current SIM card network connected when judging that the vehicle is driving from the network speed difference section to the network speed approaching section during the driving of the vehicle;

a second judging module 303, configured to, when judging that the vehicle enters the network speed difference road section from the network speed approaching road section, judge whether the network speed of the current SIM card corresponding to the network speed difference road section to be entered meets a preset requirement, and when meeting the preset requirement, keep the current SIM card connected to the network;

The comparison module 304 is configured to obtain a required network speed of the vehicle and an average network speed of the current SIM card corresponding to the network speed difference road section to be driven in when the preset requirement is not met, and compare the average network speed of the current SIM card with the required network speed;

and the switching module 305 is configured to keep the current SIM card to be connected with the network when the average network speed of the current SIM card is not lower than the required network speed, switch the current SIM card on a network speed difference road section to be driven in when the average network speed of the current SIM card is lower than the required network speed, and enable the vehicle to enter a switching preparation mode.

In some embodiments, the dividing module 301 of fig. 3 obtains the navigation section of the vehicle from the user mobile phone navigation application program or the vehicle navigation application program, obtains the network speed corresponding to the continuous position of the navigation section of each network operator pre-collected by the data collection vehicle, and divides the navigation section by the network speed of the network operator at the continuous position to obtain a plurality of section sections.

In some embodiments, the partitioning module 301 of fig. 3 determines network speed differences for successive locations of respective network operators within the navigation segment, sets segment segments for which the network speed differences between the respective network operators are less than the network speed threshold as network speed approaching segments, and sets segment segments for which the network speed differences between at least two network operators are greater than the network speed threshold as network speed difference segments; and acquiring the road section length corresponding to the road section with the different road speed, and setting the road section with the different road speed, the road section length of which is smaller than the preset road section length, as the road section with the approaching road speed.

In some embodiments, the partitioning module 301 of fig. 3 sets the network speed threshold based on a preset functional requirement of the vehicle, or dynamically determines the network speed threshold based on a minimum network speed of the SIM card corresponding to each network operator and a preset constant, where the network speed threshold is equal to the minimum network speed of the SIM card divided by the constant.

In some embodiments, when the vehicle starts, the third judging module 306 in fig. 3 determines a road segment type corresponding to a current starting location of the vehicle, and when the road segment type is a network speed difference road segment, selects a SIM card corresponding to a network operator with the highest network speed in the network speed difference road segment for network connection; when the road section type is a network speed approaching road section, judging whether a network speed difference road section exists in the navigation road section, if the network speed difference road section does not exist, selecting a SIM card corresponding to a network operator with the highest preset priority for network connection, and if the network speed difference road section exists, selecting the SIM card corresponding to the network operator with the highest occurrence frequency for network connection based on the occurrence frequency of the SIM card corresponding to the network operator with the highest network speed in each network speed difference road section.

In some embodiments, the second determining module 303 of fig. 3 obtains the network speeds of the SIM cards of the network operators corresponding to the network speed difference road sections to be driven in, determines whether the current SIM card is the SIM card with the highest network speed, and when the current SIM card is the SIM card with the highest network speed, keeps the current SIM card connected to the network.

In some embodiments, the switching module 305 of fig. 3 obtains the current application function of the vehicle after the vehicle enters the switching preparation mode, caches data generated by the current application function, monitors a preset network switching trigger condition, and switches the current SIM card of the vehicle when the vehicle meets the network switching trigger condition.

In some embodiments, the updating module 307 of fig. 3 compares the recorded actual network speed of each road section interval with the expected network speed of each road section interval issued by the cloud server by using the whole vehicle controller, and when the difference between the actual network speed and the expected network speed is greater than the threshold value, uploads the actual network speed of the road section interval to the cloud server, so that the cloud server updates the expected network speed by using the actual network speed of the road section interval.

It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.

Fig. 4 is a schematic structural diagram of an electronic device 4 according to an embodiment of the present application. As shown in fig. 4, the electronic apparatus 4 of this embodiment includes: a processor 401, a memory 402 and a computer program 403 stored in the memory 402 and executable on the processor 401. The steps of the various method embodiments described above are implemented by processor 401 when executing computer program 403. Alternatively, the processor 401, when executing the computer program 403, performs the functions of the modules/units in the above-described apparatus embodiments.

Illustratively, the computer program 403 may be partitioned into one or more modules/units, which are stored in the memory 402 and executed by the processor 401 to complete the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing a specific function for describing the execution of the computer program 403 in the electronic device 4.

The electronic device 4 may be a desktop computer, a notebook computer, a palm computer, a cloud server, or the like. The electronic device 4 may include, but is not limited to, a processor 401 and a memory 402. It will be appreciated by those skilled in the art that fig. 4 is merely an example of the electronic device 4 and is not meant to be limiting of the electronic device 4, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the electronic device may also include an input-output device, a network access device, a bus, etc.

The processor 401 may be a central processing unit (Central Processing Unit, CPU) or other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 402 may be an internal storage unit of the electronic device 4, for example, a hard disk or a memory of the electronic device 4. The memory 402 may also be an external storage device of the electronic device 4, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the electronic device 4. Further, the memory 402 may also include both internal storage units and external storage devices of the electronic device 4. The memory 402 is used to store computer programs and other programs and data required by the electronic device. The memory 402 may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided by the present application, it should be understood that the disclosed apparatus/computer device and method may be implemented in other manners. For example, the apparatus/computer device embodiments described above are merely illustrative, e.g., the division of modules or elements is merely a logical functional division, and there may be additional divisions of actual implementations, multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, and the computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of each of the method embodiments described above. The computer program may comprise computer program code, which may be in source code form, object code form, executable file or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A vehicle network automatic switching method, characterized by comprising:

the method comprises the steps of obtaining a navigation road section of a vehicle, and dividing the navigation road section into a plurality of road section sections according to the network speed difference of a network operator, wherein the road section sections comprise network speed approaching road sections and network speed difference road sections;

when the vehicle is judged to be driven into the network speed approaching section from the network speed difference section in the running process of the vehicle, the current SIM card is kept to be connected with the network;

when the vehicle is judged to drive into the network speed difference road section from the network speed approaching road section, judging whether the network speed of the current SIM card corresponding to the network speed difference road section to be driven in meets the preset requirement, and when the network speed of the current SIM card meets the preset requirement, keeping the current SIM card to be connected with a network;

When the preset requirement is not met, acquiring the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be driven in, and comparing the average network speed of the current SIM card with the required network speed;

when the average network speed of the current SIM card is not lower than the required network speed, the current SIM card is kept to be connected with the network, when the average network speed of the current SIM card is lower than the required network speed, the current SIM card is switched on the network speed difference road section to be driven in, and the vehicle enters a switching preparation mode.

2. The method of claim 1, wherein the obtaining the navigation section of the vehicle, dividing the navigation section into a plurality of section areas according to the network speed difference of the network operators, comprises:

and acquiring a navigation road section of the vehicle from a user mobile phone navigation application program or a vehicle machine navigation application program, acquiring network speeds corresponding to continuous positions of the navigation road section of each network operator acquired in advance by utilizing a data acquisition vehicle, and dividing the navigation road section by utilizing the network speeds of the network operators at the continuous positions to obtain a plurality of road section sections.

3. The method according to claim 2, wherein dividing the navigation section by using the network speed of the network operator at the continuous location to obtain a plurality of section intervals comprises:

determining the network speed difference of continuous positions of each network operator in the navigation road section, setting a road section of which the network speed difference is smaller than a network speed threshold value between each network operator as the network speed approaching road section, and setting a road section of which the network speed difference is larger than the network speed threshold value between at least two network operators as the network speed difference road section; and acquiring the road section length corresponding to the road section with the different road speed, and setting the road section with the different road speed, the road section length of which is smaller than the preset road section length, as a road section with the approaching road speed.

4. A method according to claim 3, wherein determining the network speed threshold value comprises:

and setting the network speed threshold based on the preset function requirement of the vehicle, or dynamically determining the network speed threshold based on the minimum network speed of the SIM card corresponding to each network operator and a preset constant, wherein the network speed threshold is equal to the minimum network speed of the SIM card divided by the constant.

5. The method according to claim 1, wherein the method further comprises:

when a vehicle is started, determining a road section type corresponding to a current starting place of the vehicle, and when the road section type is a network speed difference road section, selecting a SIM card corresponding to a network operator with highest network speed in the network speed difference road section for network connection;

and when the road section type is a network speed approaching road section, judging whether a network speed difference road section exists in the navigation road section, if not, selecting a SIM card corresponding to a network operator with the highest preset priority for network connection, and if so, selecting a SIM card corresponding to the network operator with the highest occurrence frequency for network connection based on the occurrence frequency of the SIM card corresponding to the network operator with the highest network speed in each network speed difference road section.

6. The method according to claim 1, wherein the determining whether the network speed of the current SIM card corresponding to the network speed difference section to be driven in meets a preset requirement, and when the preset requirement is met, maintaining the current SIM card for network connection includes:

and acquiring the network speed of the SIM card of each network operator corresponding to the network speed difference road section to be driven in, judging whether the current SIM card is the SIM card with the highest network speed, and when the current SIM card is the SIM card with the highest network speed, keeping the current SIM card to be connected with the network.

7. The method of claim 1, wherein after the entering the vehicle into a switch ready mode, the method further comprises:

acquiring a current application program function of the vehicle, caching data generated by the current application program function, monitoring a preset network switching trigger condition, and switching a current SIM card of the vehicle when the vehicle meets the network switching trigger condition.

8. The method according to claim 1, wherein the method further comprises:

and comparing the recorded actual network speed of each road section interval with the expected network speed of each road section interval issued by the cloud server by using the whole vehicle controller, and uploading the actual network speed of the road section interval to the cloud server when the difference between the actual network speed and the expected network speed is greater than a threshold value, so that the cloud server can update the expected network speed by using the actual network speed of the road section interval.

9. An automatic switching device for a vehicle network, comprising:

the system comprises a dividing module, a control module and a control module, wherein the dividing module is configured to acquire a navigation road section of a vehicle, divide the navigation road section into a plurality of road section sections according to the network speed difference of a network operator, and the road section sections comprise a network speed approaching road section and a network speed difference road section;

The first judging module is configured to keep the current SIM card to be connected with the network when judging that the vehicle runs from the network speed difference road section to the network speed approaching road section in the running process of the vehicle;

the second judging module is configured to judge whether the network speed of the current SIM card corresponding to the network speed difference road section to be driven in meets a preset requirement when the vehicle is driven in the network speed difference road section from the network speed approaching road section, and keep the current SIM card to be connected with the network when the network speed of the current SIM card meets the preset requirement;

the comparison module is configured to acquire the required network speed of the vehicle and the average network speed of the current SIM card corresponding to the network speed difference road section to be driven in when the preset requirement is not met, and compare the average network speed of the current SIM card with the required network speed;

and the switching module is configured to keep the current SIM card to be connected with a network when the average network speed of the current SIM card is not lower than the required network speed, switch the current SIM card on the network speed difference road section to be driven in when the average network speed of the current SIM card is lower than the required network speed, and enable the vehicle to enter a switching preparation mode.

10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method according to any one of claims 1 to 8.