WO2020193021A1

WO2020193021A1 - Method for operating a network system by transmitting at least one dial-in parameter by means of a vehicle-external, central electronic processing device, and network system

Info

Publication number: WO2020193021A1
Application number: PCT/EP2020/054456
Authority: WO
Inventors: Christian Geiss; Heinrich LUECKEN; Markus JORDANS; Shabir MOMAND; Caspar Vogel
Original assignee: Daimler Ag
Priority date: 2019-03-26
Filing date: 2020-02-20
Publication date: 2020-10-01
Also published as: DE102019002152A1

Abstract

The invention relates to a method for operating a network system (30) comprising a local network (32), a first motor vehicle (10) and at least one second motor vehicle (22), wherein a first network (34) is produced between a first electronic processing device (12) of the first motor vehicle (10) and a vehicle-external, central electronic processing device (28) and a second network (34) is produced between a second electronic processing device (12') of the second motor vehicle (22) and the vehicle-external, central electronic processing device (28), and wherein the local network (32) is produced between the first electronic processing device (12) and the second electronic processing device (12'), at least one dial-in parameter (38) for dialing into the local network (32) is transmitted from the vehicle-external, central electronic processing device (28) to the first electronic processing device (12) and to the second electronic processing device (12'). The invention furthermore relates to a network (30).

Description

Method for operating a network system by transmitting at least one dial-in parameter by means of an external, central electronic power unit

Computing facility and network system

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 procedure is between a first electronic

Computing device of the first motor vehicle and a central electronic computing device external to the vehicle, a first network is generated and a second network is generated between a second electronic computing device of the second motor vehicle and the central electronic computing device external to the vehicle. The local network is generated between the first electronic computing device and the second electronic computing device. 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.

US 2016/0150451 A1 discloses a wireless network data router for a vehicle and an operating method therefor. The wireless network data router includes a multi-connection interface for wireless access in

Vehicle environments, for example using Wave. It also includes a wireless local area network and an interface. The

Network data router a network interface. Also includes the wireless

Network data router a downlink data connection for the vehicle and / or users in and around the vehicle. Also includes the wireless

Network data router a data processing unit for routing data between the interfaces. The data processing unit is configured to generate a score for calculate every accessible network on the wave, Wi-Fi and cellular 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 for the data transmission from vehicles or for the provision of

Data transmission services is used. Conventional transmission services such as GSM, 3G, LTE, WLAN offer slight variations in the

Transmission quality. The transmission quality can in particular by the

Data throughput, latency and availability are defined. Furthermore, the cost is very high.

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. In the method, a first network is generated between a first electronic computing device of the first motor vehicle and a central electronic computing device external to the vehicle, and a second network is generated between a second electronic computing device of the second motor vehicle and the central electronic computing device external to the vehicle. The local network is generated between the first electronic computing device and the second electronic computing device. It is provided that at least one dial-in parameter for dialing into the local network from the central electronic computing device external to the vehicle to the first electronic computing device and to the second electronic

Computing device is transferred.

This makes it possible for a dedicated transmission channel to be opened between the first motor vehicle and the second motor vehicle. This has the advantage that, in particular, data and voice services can be provided for the motor vehicles. The solution according to the invention improves the quality of the data transmission. In particular, the range, the data throughput as well as the latency and also the costs of data transmission can be reduced. Furthermore, the advantages of motor vehicles can be used, such as the

Existing power supply, installation space, antenna systems or IT technology.

In other words, dedicated transmission channels between transmitting and receiving devices can be opened by a central controller, in particular by the central electronic computing device external to the vehicle. In particular, it can be provided, for example, that a WLAN channel between the two motor vehicles, in particular between the first electronic

Computing device and the second electronic computing device, is opened. This makes it possible to select improved operating modes, for example frequencies, of the transmitting and receiving devices used.

In particular, it can be provided that the motor vehicle or a large number of motor vehicles, which have a respective electronic computing device, support each other in addition through the intelligent transmission and transmission

Receiving unit within the electronic computing devices, whereby an improved communication infrastructure can be created for data transmission. The motor vehicles act as mobile transmission masts. Signals from conventional fixed transmission masts or other access points, such as WLAN, for example, are passed on via one or more motor vehicles. Different time, frequency space or antennas or a combination thereof are used. There will be both different technologies 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 transferring data from a

Motor 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 or LTE modules 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 WL.AN 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. For the different requirements of data transmission, the most suitable of the existing communication technologies, in other words the

Transmission technologies. Depending on the length and property of the

Different transmission technologies can be used for 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 data communication, the motor vehicles with several communication technologies, in other words transmission technologies, fitted. 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.

Alternatively, it is also possible that the information about at least the two

Transmission devices by means of the two transmission technologies can be transmitted simultaneously or in parallel.

According to an advantageous embodiment, a first

Transmission technology generates the first network and generates the local network using a third transmission technology different from the first transmission technology and / or the second network is generated using a second transmission technology and the local network is generated using the third transmission technology different from the second transmission technology.

For example, it can be provided that between the first electronic

Computing device and the power plant exte rn e, central electronic

Computing device a cellular network is set up as the first network. Furthermore, it can also be provided that the second network is a cellular network between the second electronic computing device and the central one external to the vehicle

electronic computing device is generated. In particular, it can then be provided that the local network is generated between the first electronic computing device and the second electronic computing device by means of the third transmission technology, which can be a WLAN network, for example.

In particular, it can be provided that the first transmission technology and the second transmission technology are the same. Alternatively, it can be provided that the first transmission technology is different from the second transmission technology.

It has also proven to be advantageous if the first transmission technology and the second transmission technology are provided as the same transmission technologies. In other words, the first network and the second network are made using the same transmission technology between the

outside the vehicle, central electronic computing device and the two electronic computing devices of the motor vehicles. In particular, the first transmission technology and the second transmission technology can be designed as mobile radio, for example. This enables the Advantages of mobile radio, in particular the large area coverage of mobile radio, can be used to generate the first network and the second network.

In a further advantageous embodiment, the first

Transmission technology and / or the second transmission technology as

Cellular technology provided. For example, the LTE or 5G network structure can be provided as the mobile radio technology. In particular, this enables the first network and the second network to be established in a mobile manner with the central electronic computing device external to the vehicle. In particular, the mobile radio technology is characterized by a high

Availability across the board, so that a reliable connection between the central electronic computing device external to the vehicle and the

Motor vehicles can be produced. In particular, by means of the

Mobile radio technology only transmits the dial-in parameters, which have a low data density.

It has also proven to be advantageous if the local network is encrypted using a network key. In other words, it can be provided that only the first motor vehicle and the second motor vehicle can dial into the local network. This enables a data exchange to be generated only between the two motor vehicles, in particular between the two electronic computing devices of the motor vehicles. This makes it possible, in particular, for a high, secure, in particular encrypted, data exchange to be carried out between the two electronic computing devices, since only the two vehicles have access to the local network.

According to a further advantageous embodiment, it is provided that the network key is transmitted as a dial-in parameter from the central electronic computing device external to the vehicle to the first electronic computing device and to the second electronic computing device. In other words, the network key is obtained from the central electronic system external to the vehicle

Computing device provided. This is then sent to the first electronic

Computing device and transmitted to the second electronic computing device, so that the first electronic computing device and the second electronic computing device then dial into the local network using the network key can. This can reliably ensure that the local network can be generated between the two electronic computing devices.

In particular, it can also be ensured that no other participants participate in the local network. This enables safe and yet reliable operation of the network system. Furthermore, this can improve the data transmission.

It is also advantageous if the dial-in parameter is a transmission channel and / or an operating mode and / or at least one parameter for an encryption method and / or an identification of the first electronic computing device and the second electronic computing device from the central

electronic computing device is transmitted to the first electronic computing device and to the second electronic computing device. In other words, it can be provided that, for example, via the LTE network as the first network and the second network, the motor vehicles are informed of the parameters with which a corresponding local network, for example a WLAN channel, is to be established between these two motor vehicles. For this purpose, for example, the channel, the operating mode, for example an AP mode / client mode, an SSID, a key and parameters for encryption methods and security standards are communicated to the two motor vehicles, which can then establish the connection accordingly. In addition, it can be provided that the motor vehicles autonomously and continuously search for available transmission options, in other words transmission technologies, and communicate these to the external, central electronic computing device. In particular, this enables local data exchange at a high data rate, since the local network in particular makes correspondingly high data rates available.

In a further advantageous embodiment, the local network is generated with a third electronic computing device of a third motor vehicle and the at least one dial-in parameter is additionally transmitted from the central electronic computing device external to the vehicle to the third electronic computing device. In other words, the local network can in particular also be generated between three motor vehicles. In particular, the local network can also be generated between a large number, in particular more than three, electronic computing devices. The local network can thus be used between several motor vehicles be created so that they can in particular carry out an improved data exchange. For example, the network system can be provided for vehicle convoys with a large number of motor vehicles, the local network then again advantageously being made available only for the participants in the column. In particular, the respective column participants can then use the central electronic computing device external to the vehicle

corresponding dial-in parameters are made available. This enables an improved exchange of data between several vehicles.

Furthermore, it has proven to be advantageous if, depending on a position of the first motor vehicle and depending on a position of the second motor vehicle, the central electronic computing device external to the vehicle decides whether the dial-in parameter is to be transmitted. In particular, if, for example, the motor vehicles are at a predetermined distance from one another, which can be determined by the positional determination of the respective motor vehicles, it can be decided that the respective dial-in parameter for generating the local network is transmitted from the central electronic computing device external to the vehicle. If, for example, the motor vehicles should exceed this predetermined distance based on the respective position of the motor vehicles, it can be decided that the dial-in parameter is not transmitted. The reason for this in particular is that the local network, which can be generated via a WLAN network, for example, only has a high data transmission quality over a certain distance range. If the two motor vehicles do not keep this distance, no high data transmission quality can be achieved.

Another aspect of the invention relates to a network system for operating a local network with a central electronic system external to the vehicle

Computing device, with a first electronic computing device of a first motor vehicle and with a second electronic computing device of a

Motor vehicle, the network system being designed to carry out the method according to the preceding aspect or an advantageous embodiment thereof. In particular, the method is carried out by means of the network system.

The motor vehicles are in particular as passenger cars and / or as

Trucks trained. 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 mentioned above in the description and

Combinations of features and the features and combinations of features mentioned below in the description of the figures and / or shown on their own in the figures are not only in the respectively specified combination, but also in others

Combinations or can be used alone without departing from the scope of the invention.

Show:

1 is a schematic view of an embodiment of a network system;

and

2 shows a further schematic view of an embodiment of the

Network system.

In the figures, the same elements are provided with the same reference symbols.

Fig. 1 shows in a schematic side view an embodiment of a

Motor vehicle 10. Motor vehicle 10 has an electronic computing device 12. The electronic computing device 12 is coupled to a first antenna 14, to a second antenna 16 and to a third antenna 18. The first antenna 16 can be, for example, a WLAN antenna, the second antenna 16 can

for example an LTE antenna and the third antenna 18 can be for example a WLAN antenna. For example, it can be provided that the motor vehicle 10 can communicate with a base station 20 by means of the second antenna 16. It can be provided that the motor vehicle 10 can communicate with a further motor vehicle 22. In particular, the third antenna 18 communicates with the first antenna 14 of the further motor vehicle 22. In the present exemplary embodiment, the further motor vehicle 22 likewise has a second electronic computing device 12 ′, the first antenna 14, the second antenna 16 and the third antenna 18.

Furthermore, it can be provided that the further motor vehicle 22 communicates with yet another motor vehicle 24. In particular, in the present example Communication between the third antenna 18 of the further motor vehicle 22 and the third antenna 18 of the further motor vehicle 24 is carried out. in the

In the present exemplary embodiment, the further motor vehicle 24 also has the first antenna 14, the second antenna 16 and the third antenna 18 as well as a third electronic computing device 12 ″.

Furthermore, FIG. 1 shows that in the present exemplary embodiment the further motor vehicle 22 can communicate with a mobile terminal device 26, in the present embodiment

Embodiment can be communicated by means of the third antenna 18 between the motor vehicle 22 and the mobile terminal 26. Furthermore, it is shown in the present exemplary embodiment that the further motor vehicle 24 communicates with two mobile terminals 26 by means of the first antenna 14. In other words, the mobile terminals can dial into the network of the further motor vehicles 22, 24 and thus, for example, also use the cellular network of the motor vehicle 10.

In particular, FIG. 1 shows that the equipping of the motor vehicles 10, 22, 24 with the corresponding hardware and software components makes them mobile

Transmitter masts are, in interaction with the existing infrastructure, which in the present example by the base station 20, which in particular a

electronic computing device 28 can have, is formed, can build together a radio network that significantly expands the area covered by the radio network. The electronic computing device 28 of the base station can also be referred to as a central electronic computing device 28 external to the vehicle. In particular, a network system 30 is thereby formed.

A vehicle fleet is equipped, for example, with one LTE module and two WLAN modules per motor vehicle 10, 22, 24. This way everyone can

Motor vehicle 10, 22, 24 establish a connection to the Internet via cellular network, provided the cellular network is available. If only a fraction of the motor vehicles 10, 22, 24 have access to the cellular network, the motor vehicles 10, 22, 24 can 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. Each participating motor vehicle 10, 22, 24 can therefore not only serve as a user, but also as part of the network infrastructure at the same time.

In particular, FIG. 1 shows that between the electronic computing device 12 and a further electronic computing device 28 external to the vehicle, the

Information is transmitted and / or a transmission technology 34, 36, 38, 40 (FIG. 2) is additionally selected by means of the electronic computing device 28, which is configured centrally in the following exemplary embodiment, and is external to the vehicle.

This enables the quality of the data transmission to be improved. In particular, for example, the range of the data transmission

or data throughput and latency can be improved. Furthermore, the cost of data transmission can be reduced. Furthermore, it enables the advantages of the motor vehicles 10, 22, 24 to be used, such as the existing power supply, installation space, antenna systems or IT technology, among other things.

In particular, this enables the motor vehicle 10, 22, 24 to function as a mobile transmission mast, with the motor vehicle 10, 22, 24 as a transmission mast always adapting the transmitting and receiving units in the motor vehicles 10, 22, 24 to the current situation.

A dial-in parameter 38 (FIG. 2) is to be understood here as information.

FIG. 2 shows a schematic perspective view of a further embodiment of the network system 30. FIG. 2 shows a method for operating the network system 30 with a local network 32 with the first motor vehicle 10 and with at least the second motor vehicle 22. In the present exemplary embodiment, the

Motor vehicles 10, 22 designed as trucks. Between the first

electronic computing device 12 of the first motor vehicle 10 and the

A first network 34 is generated outside the vehicle, central electronic computing device 28. A second network 36 is generated between the second electronic computing device 12 ′ of the second motor vehicle 22 and the central electronic computing device 28 external to the vehicle. The local network 32 is generated between the first electronic computing device 12 and the second electronic computing device 12. It is provided that at least one dial-in parameter 38 for dialing into the local network 32 from the central electronic system external to the vehicle

Computing device 28 is transmitted to the first electronic computing device 12 and to the second electronic computing device 12.

In particular, it can be provided that the first network 34 is generated using a first transmission technology and the local network 32 is generated using a third transmission technology that differs from the first transmission technology and / or the second network 36 is generated using a second transmission technology and the second network 36 is generated using the second transmission technology Transmission technology different third transmission technology the local network 32 is generated.

Furthermore, it can be provided that the first transmission technology and the second transmission technology are provided as the same transmission technologies. For this purpose it can be provided, for example, that the first transmission technology and / or the second transmission technology are provided as mobile radio technology. For example, LTE technology or 5G technology can be provided as cellular radio technology.

Furthermore, it can be provided that the local network 32 by means of a

Network key is encrypted. In particular, the local network 32 can be designed as a WLAN network, for example.

Furthermore, it can be provided, for example, that the network key as

Dial-in parameters 38 from the external central electronic

It can further be provided that a transmission channel and / or an operating mode and / or at least one parameter for a

Encryption method and / or an identification of the first electronic

Computing device 12 and the second electronic computing device 12 from the central electronic computing device 28 external to the vehicle to the first electronic computing device 12 and to the second electronic computing device 12 'is transmitted.

Furthermore, it can be provided in particular that the local network 32 is generated with a third electronic computing device 12 ″ of the third motor vehicle 24 and that the at least one dial-in parameter 38 is additionally generated by the

vehicle-external, central electronic computing device 28 is transmitted to the third electronic computing device 12 ″.

In particular, it is provided that depending on a position of the first

Motor vehicle 10 and as a function of a position of the second motor vehicle 22, it is decided by the central electronic computing device 28 external to the vehicle whether the dial-in parameter 38 is transmitted.

In particular, the method shown in FIGS. 1 and 2 enables the opening of dedicated transmission channels between transmitting and receiving devices, for example a WLAN channel between the motor vehicles 10, 22, 24. For this purpose, the dial-in parameters 38 are based on the past, current and future expected position and the existing communication technology and channels evaluated.

As a result, improved operating modes, for example frequencies, of the transmitting and receiving device used can be selected.

The selection can be controlled centrally as well as locally or in one

Combination of both can be done. The control information can also be exchanged via any communication channel.

Fig. 2 shows in particular that the two mobile radio technology LTE

Motor vehicles 10, 22 are told which dial-in parameter 38 is to be used to set up a WLAN channel as a local network 32 between these two motor vehicles 10, 22. For this purpose, it can be provided, for example, that the channel, the operating mode, for example an AP mode or a client mode, an SSID, a key and parameters for encryption methods and security standards are communicated to the two motor vehicles 10, 22, which then establish the connection can build accordingly. In addition, the motor vehicles 10, 22 can always be available Search for transmission options and report them to the central electronic computing device 28 external to the vehicle.

In particular, a local data exchange can thus be implemented at a high data rate. For example, a WLAN network with 2.4 gigahertz, 5 gigahertz or 60 gigahertz can be generated as a local network. This can be a great

Transfer rate can be realized.

Alternatively, an optical transmission can also be carried out by means of the local network 32. For example, an optical transmitter and receiver can be arranged on the motor vehicle 10 and 32 for this purpose. For example, this can be done by means of laser transmission. As an alternative or in addition, a physical coupling, for example in a wired manner, is also possible. In particular, it can be provided that during mobile refueling, for example by means of a

Battery tanker, with this refueling, in which a wired

Transmission takes place, corresponding data can also be transmitted.

Corresponding dial-in parameters 38 can then be transferred to the tanker vehicle and to the vehicle-external, central electronic computing device 28

Motor vehicle 10, 22, 24 are transmitted.

In particular, it is provided that the local network 32 is generated only between the two motor vehicles 10, 22.

Overall, the invention shows the opening of dedicated transmission channels.

Claims

1. A 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), wherein between a first electronic computing device (12) of the first motor vehicle (10) and a central electronic computing device (28) external to the vehicle, a first network (34) is generated and a second network (34) is generated between a second electronic computing device (12 ') of the second motor vehicle (22) and the central electronic computing device (28) external to the vehicle. is generated, and wherein the local network (32) is generated between the first electronic computing device (12) and the second electronic computing device (12 '), characterized in that

at least one dial-in parameter (38) for dialing into the local network (32) is transmitted from the central electronic computing device (28) external to the vehicle to the first electronic computing device (12) and to the second electronic computing device (12 ‘).

2. The method according to claim 1,

characterized in that

the first network (34) is generated using a first transmission technology and the local network (32) is generated using a third transmission technology different from the first transmission technology and / or the second network (36) is generated using a second transmission technology and the second network (36) is generated using the second transmission technology Transmission technology different third transmission technology the local network (32) is generated.

3. The method according to claim 2,

characterized in that

the first transmission technology and the second transmission technology are provided as the same transmission technologies.

4. The method according to any one of claims 2 or 3,

characterized in that

the first transmission technology and / or the second transmission technology are provided as mobile radio technology.

5. The method according to any one of the preceding claims,

characterized in that

the local network (32) is encrypted by means of a network key.

6. The method according to claim 5,

characterized in that

the network key is transmitted as a dial-in parameter (38) from the central electronic computing device (28) external to the vehicle to the first electronic computing device (12) and to the second electronic computing device (12 ‘).

7. The method according to any one of the preceding claims,

characterized in that

as a dial-in parameter (38) a transmission channel and / or an operating mode and / or at least one parameter for an encryption method and / or an identification of the first electronic computing device (12) and the second electronic computing device (12 ') from the central electronic computing device external to the vehicle ( 28) to the first electronic

Computing device (12) and to the second electronic computing device (12 ‘) is transmitted.

8. The method according to any one of the preceding claims,

characterized in that

the local network (32) is generated with a third electronic computing device (12 ″) of a third motor vehicle (24) and the at least one

Dial-in parameters (38) also from the central electronic computing device (28) external to the vehicle to the third electronic one

Computing device (12 ") is transferred.

9. The method according to any one of the preceding claims,

characterized in that

as a function of a position of the first motor vehicle (10) and as a function of a position of the second motor vehicle (22), the central electronic computing device (28) external to the vehicle decides whether the dial-in parameter (38) is to be transmitted.

10. Network system (30) for operating a local area 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), wherein the network system (30) is designed to carry out the method according to one of Claims 1 to 9.