DE102019002165A1 - Method for operating a network system with a local network and network system - Google Patents

Abstract

The invention relates to a method for operating a network system (30) with a local network (32) with a first and with a second motor vehicle (10, 22), with the local network (32.) of one of the motor vehicles (10, 22, 24) ) is generated by means of the electronic computing device (12), the other motor vehicle (10, 22, 24) being dialed into the local network (32) by means of an electronic computing device (12) of this motor vehicle (10, 22, 24), whereby from a motor vehicle-external, central electronic computing device (28) of the base station (20) is determined depending on a decision criterion which of the motor vehicles (10, 22, 24) is dialed into the local network (32). The invention also relates to a network system (30).

Description

The invention relates to a method for operating a network system with a local network with a first motor vehicle and with at least one second motor vehicle. The local network is generated by at least one of the motor vehicles by means of an electronic computing device of the network system, the other motor vehicle being dialed into the local network by means of a transmission technology using an electronic computing device of this motor vehicle. The invention also relates to a network system.

Different transmission technologies such as mobile radio technology or other radio technology such as WLAN or Bluetooth are already known from the prior art. Due to the limited number of base stations or other access points, there are supply gaps, capacity bottlenecks and high latencies due to the central processing.

The US 2016/0150451 A1 discloses a wireless network router for a vehicle and a method of operation therefor. The wireless network data router includes a multiple connection interface for wireless access in vehicle environments, here using Wave. It also includes a wireless local area network and an interface. The network data router also includes a network interface. Furthermore, the wireless network data router comprises a downlink data connection for the vehicle and / or users in the vehicle and in its surroundings. The wireless network data router further comprises a data processing unit for routing data between the interfaces. The data processing unit is configured to calculate a number of points for each accessible network on the wave, Wi-Fi and cellular radio interfaces. Furthermore, the data processing unit is configured to switch the uplink connection of the data router of the wireless network to the accessible network with the best score. This document further discloses a wireless network data router for vehicles for connecting vehicles to the Internet via a multi-network device, the router being a mobile router capable of forming a network of connected vehicles, the router being for using parked vehicles Vehicles arranged to redistribute Wi-Fi signals from fixed hotspots.

It is also known from the prior art that only one connection is used for the data transmission from vehicles or for the provision of data transmission services. Conventional transmission services such as GSM, 3G, LTE, WLAN offer little flexibility in terms of transmission quality. The transmission quality can be defined in particular by the data throughput, the latency and the availability. Furthermore, the costs are very high, especially for mobile communications.

The object of the present invention is to create a method and a network system by means of which the quality of data transmission during communication can be improved.

This object is achieved by a method and by a network system according to the independent claims. Advantageous embodiments are specified in the subclaims.

One aspect of the invention relates to a method for operating a network system with a local network, with a first motor vehicle and with at least one second motor vehicle. The local network is generated by at least one of the motor vehicles by means of the electronic computing device of the respective motor vehicle. The other motor vehicle is dialed into the local network by means of a transmission technology using an electronic computing device of this motor vehicle.

It is provided that a central electronic computing device external to the vehicle determines which of the vehicles is dialed into the local network as a function of a decision criterion.

In particular, the quality of the data transmission can be better matched to the existing requirements of the data stream in question.

In particular, it can be provided according to the invention that the decision about the network structure is negotiated by a central computing device external to the vehicle or by a decentralized electronic computing device, for example among the motor vehicles. A mixture of these is also possible. In particular, the decision can also be made as a function of one or a plurality, in particular more than one, of decision criteria.

The local network can thus be established between the motor vehicles. Data packets can thus be transmitted between the motor vehicles.

Between the motor vehicle that provides the local network, a first Network. The transmission technology between a base station and the motor vehicle, by means of which the first network can be set up, is also referred to below as first transmission technology. The transmission technology between the two motor vehicles, that is to say for the local network, is also referred to below as the second transmission technology.

In other words, it can be provided that a data connection is established between the two motor vehicles, for example via WLAN or DSRC. In particular, a fixed first network with the base station as the communication infrastructure is established between one of the two motor vehicles, for example via mobile radio or likewise via WLAN. In other words, it is provided in particular that the first transmission technology can be, for example, cellular radio or WLAN, while the second transmission technology is, in particular, WLAN or DSRC. In other words, the first transmission technology can be different from the second transmission technology. It is also possible for the first transmission technology to be designed in the same way as the second transmission technology.

The DSRC module is a type of communication, in other words a transmission technology, by means of which communication can be carried out over a short distance. In particular, the DSRC (Dedicated Short Range Communication) module is a transmission technology by means of which a semi-passive transponder technology with very small communication zones is established. For example, the CEN and ETSI communication can be viewed under DSRC. Furthermore, the wave communication can be viewed as a DSRC communication. In particular, the DSRC communication between vehicle-to-vehicle communication, which can also be referred to as V2V communication, takes place to prevent collisions. In particular, traffic jam reports can be exchanged between the motor vehicles using this method. With the DSRC method, for example, an IEEE 802.11p network can be set up. The WLAN is a wireless local area network. It describes a local radio network, mostly using the IEEE 802.11 family standard. A GSM, a UMTS, an LTE, a 5G, a C-V2X / Sidelink, for example, can be provided as a mobile radio using the mobile radio module. ZigBee according to the IEEE-802.15.4 standard can also be used. It is also possible that the mm-Wave is used according to the IEEE-802.11ad standard. Furthermore, communication can also be carried out using Bluetooth, for example.

The central electronic computing device external to the vehicle functions in this case in particular as a control unit. The motor vehicle, by means of which the local network and in particular also the first network is established, can in particular be referred to as an access point, while the motor vehicle which is dialed into the local network can be referred to as a client. In particular, a hierarchical structure can thereby be determined and produced by means of the central electronic computing device external to the vehicle, the hierarchical structure being controlled by the central electronic computing device external to the vehicle.

This enables the quality of the data transmission between the motor vehicle, in particular between the motor vehicles, and the base station to be improved.

This is particularly useful because WLAN networks are structured hierarchically in infrastructure mode. Such a local network consists of a central participant, the so-called access point, which acts as the organizer of the network and coordinates the radio traffic between all nodes dialed into the network. In other words, the organizer is the motor vehicle between which the first network and the base station is established. The other network nodes are subordinate to the coordination of the access point and are called clients in particular.

This results in a hierarchy of a coordinating access point and several participating clients in every network.

Since the position of the participants and thus the network topology are constantly changing in a local network made up of mobile transmitters, especially motor vehicles and receivers, especially motor vehicles, it is inevitable that existing hierarchical radio networks will often collapse because the motor vehicles that act as clients , lose the radio connection to the access point of your current network.

According to the invention it is now provided that a centrally running algorithm assigns the access point role to a node at regular intervals and assigns the client role to all other nodes in the immediate vicinity. On the basis of this allocation, the access points build a network for the respective time period into which surrounding clients can dial. In particular, the clients are dialed in. This process will be for everyone Repeated time segment so that the network hierarchy is new for each time segment.

The network hierarchy can in particular also be optimized as a function of the data transmission requirements of the individual nodes / motor vehicles. In other words, a data transmission requirement can be viewed as a decision criterion.

Furthermore, depending on the data requirement, parked vehicles, for example, can also be “woken up” in a targeted manner.

If, for example, a data transmission requirement at a certain location or in a certain region cannot be met, motor vehicles could be directed there in order to establish a correspondingly improved network hierarchy. For example, route guidance in the motor vehicle can be specifically changed for this purpose, or an autonomously driving motor vehicle could be guided there, for example.

In particular, there is a large number of local networks over a geographical area, which are optimized using the method according to the invention.

In particular, it can be provided that the motor vehicle or a large number of motor vehicles that have a respective electronic computing device support each other in addition through the intelligent transmitting and receiving unit within the electronic computing devices, whereby an improved communication infrastructure can be created for the data transmission. The motor vehicles act as mobile transmission masts. Signals from conventional fixed transmission masts or other access points such as WLAN can be passed on via one or more motor vehicles. Different times, frequency positions or antennas or a combination thereof are used. Different technologies are used for different data streams, for example channel bundling, as well as cooperative transmission methods such as the application of MIMO, relaying, distributed antenna systems for motor vehicles between the motor vehicles and the cellular network and other access points. When transmitting data from one vehicle to the next, the direct transmission path is used as long as the connection exists.

In particular, by equipping motor vehicles with the appropriate hardware and software, i.e. physical components and computer program products, these become mobile transmission masts that, in cooperation with the existing infrastructure and with each other, build a radio network that significantly expands the area covered by the radio network. For example, it can be provided that a motor vehicle is equipped with the LTE modem and, for example, two WLAN modules per motor vehicle. In this way, every motor vehicle can establish a connection to the Internet using the LTE modem, provided the cellular network is available. If only a fraction of the vehicles have access to the cellular network, the vehicles can communicate with each other via WLAN connections and thus establish a connection bridge to the cellular network. In this way, a large number of network nodes can be supplied with Internet access, although only one of them is supplied with a cellular network. Each participating motor vehicle can therefore not only serve as a user, but at the same time also as part of the network infrastructure.

In particular by combining different communication channels with different transmission technologies for motor vehicles, the connection between the motor vehicles can advantageously be established. The most suitable of the existing communication technologies, in other words the transmission technologies, are used for the different data transmission requirements. Different transmission technologies can be used depending on the length and properties of the transmission path. For example, it can be provided that radio technologies that are designed for short-range radio are used for a short transmission path. For a long transmission path, on the other hand, radio technologies can be used that are designed for communication over greater distances.

Therefore, in order to improve the data communication, the motor vehicles are equipped with a plurality of communication technologies, in other words transmission technologies. Thanks to the technology mix, the right communication technology or a combination from the technology mix can be selected for each data package or information.

In an advantageous development, a first network can be generated by means of the electronic computing device from one of the motor vehicles using a further transmission technology and a base station of the network system, and the local network can be generated from this motor vehicle, with which one of the motor vehicles is additionally determined depending on a decision criterion the first network is created. Under base station is in particular one central server, which can be implemented as a cloud, for example.

According to an advantageous embodiment, a third motor vehicle with a third electronic computing device is dialed into the local network by means of the second transmission technology. In particular, it can be provided that a large number of motor vehicles, in particular more than three motor vehicles, are dialed into the local network. In other words, the motor vehicle, between which the first network has been established between the base station and this motor vehicle and which provides the local network, serves as an access point, while the other motor vehicles, in particular the large number of motor vehicles, in the local network as clients can be dialed in. The local network can thus be provided for a large number of motor vehicles. In particular, this enables the data transmission quality between the motor vehicles and the base station to be improved.

It has also proven to be advantageous if, when a predetermined distance is exceeded by the motor vehicle which sets up the local network, from the other two motor vehicles, as a decision criterion, the central electronic computing device external to the vehicle determines which of the two remaining motor vehicles is the local network is generated and which of the two remaining vehicles is dialed into the local network. In other words, should the motor vehicle, which is the access point, move away, the electronic computing device external to the vehicle can decide which of the remaining motor vehicles will now assume the role of the access point. In particular, this is implemented as a function of the decision criterion or several decision criteria, for example a connection quality of the respective motor vehicle to the base station. The local network is then set up between the two remaining motor vehicles, one of the two motor vehicles then being provided as an access point while the other motor vehicle dials into the local network. In particular, the further motor vehicle is dialed into the local network. The central electronic computing device external to the vehicle therefore decides which of the two remaining vehicles is provided as an access point and which of the two remaining vehicles is dialed into the local network, adapted to the current situation. A network hierarchy can thereby be provided in an improved manner. As a result, the data transmission quality between the remaining motor vehicles or between the motor vehicles and the base station can be improved.

In a further advantageous embodiment, depending on a current potential connection quality of the transmission technology of a respective motor vehicle, it is determined as a decision criterion which of the motor vehicles is dialed into the local network. In particular, the connection quality is dependent on a position of the motor vehicle, both the current and a future position of the motor vehicle, as well as a speed of the motor vehicle and a reception quality of the respective transmission device of the motor vehicle. In particular, so-called heartbeat tests can be used to check the connection quality between the central electronic computing device external to the vehicle and the respective electronic computing devices of the respective motor vehicles, whereby the connection quality can be determined. In particular, depending on this specific potential connection quality, it can then be decided between which of the motor vehicles the first network is generated. This makes it possible to better decide between which of the motor vehicles the first network is generated. This improves the data transmission quality between the motor vehicles and the central electronic computing device of the base station external to the vehicle.

It is also advantageous if the central electronic computing device external to the vehicle is used to determine which of the vehicles is dialed into the local network in a manner adapted to the current situation at predetermined time intervals. In other words, the role of the access point or the client is reassigned in particular at predetermined time intervals by means of the central electronic computing device external to the vehicle. For example, this can be carried out on the basis of a speed of the respective motor vehicle. The network hierarchy for a specific geographical area is thus generated anew at each time segment, in particular at each time interval, and the corresponding roles within the network are reassigned. In this way, the network hierarchy can be redefined, adapted to the current situation, so that the data transmission quality can be improved in accordance with the current situation.

Furthermore, it has proven to be advantageous if it is determined as a decision criterion as a decision criterion which of the motor vehicles is dialed into the local network as a function of a future position of the motor vehicles. If, for example, one of the motor vehicles should drive into a tunnel in the future, it can be determined, for example, that this motor vehicle no longer serves as an access point, since a radio connection between this motor vehicle and the base station can have a poor connection quality. In particular, it is then determined that this motor vehicle dials in or is dialed in as a participant in the local network. A motor vehicle that is located outside this tunnel can then in turn serve as an access point and thus establish the network, in particular the first network, between the base station and the motor vehicle. The respective networks can thus be established as a function of the positions of the respective motor vehicles, as a result of which the data transmission quality for the motor vehicles and the base station can be improved.

In a further advantageous embodiment, depending on future and / or past connectivity information, it is determined as a decision criterion which of the motor vehicles is dialed into the local network. In particular, an algorithm for assigning the roles of the access point and the client takes place, which uses data on the current position and connectivity of the mobile network nodes, in particular the motor vehicles, as well as historical connectivity information from a database to determine the positions and connectivities of all To forecast motor vehicles in the coming period. On the basis of this prognosis, an improved network topology is then determined by means of the central electronic computing device external to the vehicle, with each of the vehicles being assigned either the role of the access point or the client on the basis of this particular network topology. This results in improved operation with improved data transmission quality of the network system.

In a further advantageous embodiment, when the motor vehicle with which the local network is generated exceeds a predetermined distance, this motor vehicle is dialed into a further local network by the other motor vehicle. If, for example, the motor vehicle between which the first network was established or generated is faster than the other motor vehicle, this motor vehicle moves away from the other motor vehicle. In particular, the other motor vehicle can no longer dial into the local network of the motor vehicle with the local network. If the motor vehicle that has set up the local network then approaches other, further motor vehicles, with a local network already being established between these motor vehicles, the motor vehicle is dialed into this local network of the further motor vehicles. Thus, the motor vehicle that previously served as an access point becomes a client. In particular, it can then be provided that the other motor vehicle, which was previously the client, can now become the access point. In this way, the data transmission between the motor vehicles and the base station can be improved in an advantageous manner.

A further aspect of the invention relates to a network system for operating a local network with a central electronic computing device external to the vehicle, with a first electronic computing device of a first motor vehicle and with a second electronic computing device of a second motor vehicle, the network system for performing the method or an advantageous embodiment is designed according to the preceding aspect. In particular, the method is carried out by means of the network system.

Advantageous embodiments of the method are to be regarded as advantageous embodiments of the network system. For this purpose, the network system has objective features which enable the method or an advantageous embodiment thereof to be carried out.

Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and with reference to the drawings. The features and combinations of features mentioned above in the description as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination, but also in other combinations or on their own, without the scope of the Invention to leave.

• 1 eine schematische Ansicht einer Ausführungsform des Verfahrens;
• 2 ein schematisches Ablaufdiagramm einer Ausführungsform des Verfahrens;
• 3 eine schematische Ansicht einer Ausführungsform des Verfahrens in einer ersten Situation;
• 4 eine weitere schematische Ansicht einer Ausführungsform des Verfahrens in einer zweiten Situation;
• 5 eine weitere schematische Ansicht einer Ausführungsform des Verfahrens in einer dritten Situation;
• 6 eine weitere schematische Ansicht einer Ausführungsform des Verfahrens in einer vierten Situation; und
• 7 eine weitere schematische Ansicht einer Ausführungsform des Verfahrens in einer fünften Situation.

Show:

• 1 a schematic view of an embodiment of the method;
• 2 a schematic flow diagram of an embodiment of the method;
• 3 a schematic view of an embodiment of the method in a first situation;
• 4th a further schematic view of an embodiment of the method in a second situation;
• 5 a further schematic view of an embodiment of the method in a third situation;
• 6th a further schematic view of an embodiment of the method in a fourth situation; and
• 7th a further schematic view of an embodiment of the method in a fifth situation.

Identical or functionally identical elements are provided with the same reference symbols in the figures.

1 shows an embodiment of a motor vehicle in a schematic side view 10 . The car 10 has an electronic computing device 12 on. The electronic computing device 12 is with a first antenna 14th , with a second antenna 16 and with a third antenna 18th coupled. The first antenna 16 can for example be a WLAN antenna, the second antenna 16 can for example be an LTE antenna and the third antenna 18th can for example be a WLAN antenna. For example, it can be provided that the motor vehicle 10 with a base station 20th by means of the second antenna 16 can communicate. It can be provided that the motor vehicle 10 with another motor vehicle 22nd can communicate. In particular, the third antenna communicates 18th with the first antenna 14th of the further motor vehicle 22nd . The other motor vehicle 22nd in the present exemplary embodiment also has an electronic computing device 12 , the first antenna 14th , the second antenna 16 and the third antenna 18th on.

It can also be provided that the further motor vehicle 22nd with yet another motor vehicle 24 communicates. In the present example, communication is particularly important between the third antenna 18th of the further motor vehicle 22nd and the third antenna 18th of yet another motor vehicle 24 carried out. In the present exemplary embodiment, it has yet another motor vehicle 24 also the first antenna 14th , the second antenna 16 and the third antenna 18th and an electronic computing device 12 " on.

Also shows 1 that in the present embodiment the further motor vehicle 22nd with a mobile device 26th can communicate, in the present exemplary embodiment using the third antenna 18th between the motor vehicle 22nd and the mobile device 26th can be communicated. Furthermore, it is shown in the present exemplary embodiment that the still further motor vehicle 24 by means of the first antenna 14th with two mobile devices 26th communicates. In other words, the mobile terminals can join the network of the other motor vehicles 22nd , 24 dial in and thus, for example, the mobile network of the motor vehicle 10 with benefit.

In particular shows 1 that through the equipment of the motor vehicles 10 , 22nd , 24 With the appropriate hardware and software components, these become mobile transmission masts that interact with the existing infrastructure, which in the present example is provided by the base station 20th which in particular is an electronic computing device 28 can have, is formed, can build together a radio network that significantly expands the area covered by the radio network. In particular, between the motor vehicles 10 , 22nd , 24 and the base station 20th a network system 30th to be provided.

A vehicle fleet is, for example, with one LTE module and two WLAN modules per vehicle 10 , 22nd , 24 fitted. In this way, every motor vehicle 10 , 22nd , 24 Connect to the Internet via cellular network, provided that the cellular network is available. Should only be a fraction of the motor vehicles 10 , 22nd , 24 Vehicles can have access to the cellular network 10 , 22nd , 24 Communicate with each other via WLAN connections and thus establish a connection bridge between cellular networks. In this way, a large number of network nodes can be supplied with Internet access, although only one of them is supplied with a cellular network, in this case the motor vehicle 10 . Every participating vehicle 10 , 22nd , 24 can thus not only serve as a user, but also as part of the network infrastructure at the same time.

Between the motor vehicle 10 , 22nd , 24 which is a local area network 32 provides a first network by means of a further transmission technology 34 to be provided. The following is the transmission technology between the base station 20th and the motor vehicle 10 , 22nd , 24 , by means of which the first network 34 can also be referred to as the first transmission technology. The transmission technology between the two vehicles 10 , 22nd , 24 , i.e. for the local network 32 , is also referred to below as the second transmission technology.

In the method for operating a network system 30th with a local network 32 ( 3 ) with the first motor vehicle 10 and with at least the second motor vehicle 22nd , is for example between one of the motor vehicles 10 , 22nd , 24 by means of a first transmission technology and the base station 20th of the network system 30th a first network 34 by means of an electronic computing device 12 of the respective motor vehicle 10 , 22nd , 24 generated and from this motor vehicle 10 , 22nd , 24 becomes the local network 32 by means of the electronic computing device 12 generated. The other motor vehicle 10 , 22nd , 24 is made using a second transmission technology using a electronic computing device 12 this motor vehicle 10 , 22nd , 24 in the local network 32 dialed in.

It is provided that the central electronic computing device external to the vehicle 28 the base station 20th is determined as a function of a decision criterion, in particular by means of which of the motor vehicles 10 , 22nd , 24 the first network 34 is generated and which of the motor vehicles 10 , 22nd , 24 in the local network 32 is dialed in.

Thus, between the motor vehicles 10 , 22nd , 24 the local network 32 be formed. Data packets can thus be sent between the motor vehicles 10 , 22nd , 24 be transmitted.

In particular shows 1 that a third motor vehicle 24 with a third electronic computing device 12 in the local network 32 is dialed in using the second transmission technology.

Furthermore, the 1 that depending on a current potential connection quality of the transmission technology of a respective motor vehicle 10 , 22nd , 24 as a decision criterion is determined between which of the motor vehicles 10 , 22nd , 24 the first network 34 is produced.

In particular, it can be provided that by means of the central electronic computing device external to the vehicle 28 at predetermined time intervals adapted to the current situation is determined between which of the motor vehicles 10 , 22nd , 24 the first network 34 is produced.

Furthermore, it can be provided that depending on a future position of the motor vehicles 10 , 22nd , 24 as a decision criterion is determined between which of the motor vehicles 10 , 22nd , 24 the first network 34 is produced. It can furthermore be provided that, depending on future and / or past connectivity information, it is determined as a decision criterion between which of the motor vehicles 10 , 22nd , 24 the first network 32 is produced.

2 shows a schematic view of a flow chart of the method. In one step S1 the current position and connectivity of all motor vehicles 10 , 22nd , 24 definitely, in one step S2 the network topology is determined centrally by means of the central electronic computing device external to the vehicle 28 . In one step S3 becomes the future position of all motor vehicles 10 , 22nd , 24 , in other words, a forecast. Out of step S4 a query is made to a database with the corresponding connectivity information. In step S5 the network topology is determined further by means of the central electronic computing device external to the vehicle 28 . In step S6 will be the future connectivity of all motor vehicles 10 , 22nd , 24 certainly. In other words, a forecast of future connectivity is found in the step S6 instead of. In step S7 a further determination of the future network topology takes place depending on the future position of all motor vehicles 10 , 22nd , 24 according to step S3 as well as the future connectivity of all vehicles 10 , 22nd , 24 according to the step S6 . In particular, the step S7 again by the central electronic computing device external to the vehicle 28 carried out. In step S8 in turn, roles are assigned for the next time interval of the motor vehicles 10 , 22nd , 24 . In particular, roles are assigned to which of the motor vehicles 10 , 22nd , 24 the first network 34 with the base station 20th builds and which of the motor vehicles 10 , 22nd , 24 in the local network 32 is dialed in. In other words takes place in the crotch S8 the role allocation takes place, which of the motor vehicles 10 , 22nd , 24 serves as an access point and which of the motor vehicles 10 , 22nd , 24 serves as a client.

In other words it shows 2 an algorithm for assigning the roles of access point and client, the data on the current position and connectivity of the mobile network nodes, in particular the motor vehicles 10 , 22nd , 24 , as well as uses historical connectivity information from a database to track the position and connectivity of all vehicles 10 , 22nd , 24 to forecast in the coming period. On the basis of this forecast, the algorithm calculates an improved network topology and also assigns it to each of the vehicles on this basis 10 , 22nd , 24 either the role of access point or client.

3 shows in a schematic view an embodiment of the method in a first situation. At the beginning of a new time interval, each of the motor vehicles opens 10 , 22nd , 24 with the role of access point a WLAN network that is part of the local network 32 and that the surrounding clients can dial into. In the present exemplary embodiment, the clients are the motor vehicles 22nd and 24 while the motor vehicle acts as an access point 10 provided. Furthermore, the 3 that further motor vehicles are on a road, one of the motor vehicles, which is designated as 10 ', an access point being provided, while the second further motor vehicles 22 ' , 24 ' into the local network 32 ' have dialed in.

4th shows the method according to an embodiment in a second situation. The car 10 which is the local network 32 builds away from the other motor vehicles 22nd , 24 of the local network 32 . This is particularly indicated by the arrow 36 shown. A distance A. between motor vehicles 10 , 22nd , 24 is still sufficient here so that the first motor vehicle 10 can still serve as an access point.

5 shows in a schematic view an embodiment of the method in a third situation. The car 10 has moved away from motor vehicles 22nd , 24 removed, so in particular the local network 32 has collapsed. The car 10 In other words, it has proven itself as an access point out of reach of motor vehicles 22nd , 24 removed so that the local network 32 has collapsed. In particular, it is shown in the following embodiment or in the following example that the motor vehicle 10 near the local network 32 ' , which from the motor vehicle 10 ' is being built.

6th shows in a schematic view an embodiment of the method in a fourth situation. The situation is appropriate 5 shown. In the following 6th is done by means of the central electronic computing device external to the vehicle 28 determines that the motor vehicle 10 now in the local network 32 ' can dial in. In other words, the automobile becomes 10 from the access point to the client. In other words, the motor vehicle chooses itself 10 now in the local network 32 ' one made by the motor vehicle 10 ' provided.

In other words, it is provided that when a predetermined distance is exceeded A. of the motor vehicle 10 with which the local network 32 is generated by the other motor vehicles 22nd , 24 this motor vehicle 10 into another local network 32 ' is dialed in.

Furthermore, it can in particular be provided that by means of the central electronic computing device external to the vehicle 28 it is determined that the motor vehicle 24 as an access point for a new local network 32 " ( 7th ) is determined.

7th shows an embodiment of the method in a fifth situation. The car 10 was in the local network 32 ' dialed in. The car 24 has yet another local network 32 " built, with the motor vehicle 22nd and a motor vehicle 24 in this local network 32 " have dialed in. The local network 32 thus no longer exists.

In particular, it is thus provided that when a predetermined distance is exceeded A. of the motor vehicle 10 which is the local network 32 builds up from the other two motor vehicles 22nd , 24 as a decision criterion by means of the central electronic computing device external to the vehicle 28 it is determined between which of the two remaining vehicles 22nd , 24 the first network 34 and the local network 32 " are generated and which of the two remaining vehicles 22nd , 24 in the local network 32 " is dialed in.

Overall, the invention shows a continuous improvement in the network hierarchy.

List of reference symbols

10

first motor vehicle

12th

electronic computing device

14th

first antenna

16

second antenna

18th

third antenna

20th

Base station

22nd

second motor vehicle

24

third motor vehicle

26th

mobile device

28

Central electronic computing device external to the vehicle

30th

Network system

32

local network

32 '

local network

32 "

local network

34

first network

A.

distance

S1

first step

S2

second step

S3

Third step

S4

fourth step

S5

fifth step

S6

sixth step

S7

seventh step

S8

eighth step

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• US 2016/0150451 A1 [0003]

Claims (10)

Method for operating a network system (30) with a local network (32) with a first motor vehicle (10) and with at least one second motor vehicle (22), the local network (32) of one of the motor vehicles (10, 22, 24) is generated by means of an electronic computing device (12) of the respective motor vehicle (10, 22, 24), the other motor vehicle (10, 22, 24) using a transmission technology by means of an electronic computing device (12) of this motor vehicle (10, 22, 24) is dialed into the local network (32), characterized in that a central electronic computing device (28) external to the vehicle determines which of the vehicles (10, 22, 24) is dialed into the local network (32) as a function of a decision criterion . Procedure according to Claim 1 , characterized in that a first network (34) is generated by one of the motor vehicles (10, 22, 24) by means of a further transmission technology and a base station (20) of the network system (30) by means of the electronic computing device (12) and by this motor vehicle (10, 22, 24) the local network (32) is generated, whereby it is additionally determined as a function of a decision criterion by means of which of the motor vehicles (10, 22, 24) the first network (32) is generated. Procedure according to Claim 1 or 2 , characterized in that depending on a current potential connection quality of the transmission technology of a respective motor vehicle (10, 22, 24) is determined as a decision criterion which of the motor vehicles (10, 22, 24) is dialed into the local network (32). Method according to one of the preceding claims, characterized in that by means of the central electronic computing device (28) external to the vehicle, it is determined at predetermined time intervals adapted to the current situation, which of the vehicles (10, 22, 24) dials into the local network (32) becomes. Method according to one of the preceding claims, characterized in that depending on a future position of the motor vehicles (10, 22, 24) it is determined as a decision criterion which of the motor vehicles (10, 22, 24) is dialed into the local network (32). Method according to one of the preceding claims, characterized in that depending on future and / or past connectivity information, it is determined as a decision criterion which of the motor vehicles (10, 22, 24) is dialed into the local network (32). Method according to one of the preceding claims, characterized in that a third motor vehicle (24) is dialed into the local network (32) with a third electronic computing device (12). Procedure according to Claim 7 , characterized in that when a predetermined distance (A) of the motor vehicle (10, 22, 24) which sets up the local network (32) is exceeded, from the other two motor vehicles (10, 22, 24) as a decision criterion by means of the vehicle-external , central electronic computing device (28) is determined by which of the two remaining motor vehicles (10, 22, 24) the local network (32) is generated and which of the two remaining motor vehicles (10, 22, 24) in the local network (32 ) is dialed in. Method according to one of the preceding claims, characterized in that when a predetermined distance (A) is exceeded by the motor vehicle (10, 22, 24) with which the local network (32) is generated, from the other motor vehicle (10, 22, 24) this motor vehicle (10, 22, 24) is dialed into a further local network (32 '). Network system (30) for operating a local network (32) with a central electronic computing device (28) external to the vehicle, with a first electronic computing device (12) of a first motor vehicle (10) and with a second electronic computing device (12) of a second motor vehicle ( 22), the network system (30) for performing the method according to one of the Claims 1 to 8th is trained.

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