WO2009071383A1

WO2009071383A1 - Method and device for the integration of at least one new router into an existing wireless sensor-actuator network

Info

Publication number: WO2009071383A1
Application number: PCT/EP2008/064084
Authority: WO
Inventors: Carsten Meyer; Christoph Niedermeier; Jürgen REICHMANN; Andreas Zeidler
Original assignee: Siemens Aktiengesellschaft
Priority date: 2007-12-07
Filing date: 2008-10-20
Publication date: 2009-06-11
Also published as: DE102007058988A1

Abstract

The invention relates to a method for the integration of at least one new router (07) into an existing wireless sensor-actuator network (05), comprising the following process steps: - incorporating a device (01) into the network (05); - incorporating at least one new router (07) into the network (05); - determining or detecting operating parameters of the network (05) by means of the device (01); - automatic imprinting of the at least one new router (07) by transmitting the operating parameters from the device (01) to the at least one new router (07); - starting operation of the at least one new router (07) in the network (05). The invention further proposes a device (01) for the integration of at least one new router (07) into an existing wireless sensor actuator network (05).

Description

description

Method and device for integrating at least one new network node into an existing wireless sensor / actuator network

The invention relates to a method for integrating at least one new network node into an existing wireless sensor-actuator network according to the preamble of claim 1, and to a device for integrating at least one new network node into an existing wireless sensor-actuator network according to the preamble of claim 10.

In distributed sensor-actuator wireless networks, there typically occurs the problem that parts of the network need to be expanded or replaced. This is e.g. always the case when defective nodes are replaced by new nodes or in addition new nodes are integrated into the operation, for example, either for compression, magnification or

Extension of functionality. In the context of an industrial application, it should be assumed that network nodes on delivery do not have any specific configuration or application software, but merely generic capabilities to discover existing networks and to connect to them at the network level.

A typical problem with this is that different networks have completely different operating parameters, such as radio parameters, duty cycles and the like.

As part of the commissioning therefore a so-called embossing of the new sensor nodes on the general operating parameters of the already installed network is inevitable, ie the radio parameters such as frequency channel, frequency of transmission and the like, and the duty cycle called duty cycles are adapted to the existing network , If the node has to autonomously discover or determine the operating parameters of the network, the problem arises that the new node remains in a non-operational state for an indeterminate period and / or consumes invaluable valuable energy, which can lead to a significant shortening of the lifetime. Another problem with commissioning is that manual embossing of a new node requires a great deal of knowledge about the design and operation of sensor-actuator networks and must therefore be performed by specially trained and qualified personnel, which greatly increases the cost of installation work elevated.

Conversely, the problem can also be shifted to the network, but it is necessary for the nodes in the network to use additional work cycles to receive a new node on a particular channel. Since this represents a significant burden on the energy reserves of the network nodes, this method is not practical. In the sense of a cost-efficient operation of wireless sensor networks, it is therefore essential to make the effort of commissioning new

Nodes, embossing, through the application of appropriate self-configuration mechanisms to minimize or minimize.

Another aspect concerns the problem of static localization of nodes. Here a distinction is made between the following localization problems:

- Localization of applied new nodes. Newly deployed nodes are typically associated with a particular location. This can be logical in nature ("Machine 3", "Location 17"), or even geographic (latitude and longitude, building, space).

Localization of nodes in an existing network. In existing networks, certain nodes must be locatable, for example, to find a node that has failed and / or is not active.

Current existing solutions to the problem are: a) One-time static determination of all relevant operating parameters, such as radio channel, duty cycles, actuator configurations, etc., during the production of the node. This disadvantageously leads to a very limited flexibility, since all nodes are identical, and thus very limited usability, since no parallel networked separate network topologies are possible. In addition, this results in a high outlay for the production of the nodes, since each node must be individually produced for a particular site and / or a particular application in the worst case.

b) A pre-configuration by specially trained personnel. All operating parameters are configured in a special software module before the node is installed, which is then customized and installed on the sensor nodes. Subsequently, the sensor node can be introduced into the network and activated. This solution requires special, in-depth knowledge of the internal processes and mechanisms of existing sensor-actuator networks. Accordingly, the use of specially trained personnel for these purposes also leads to higher installation costs.

c) A self-configuration of the nodes. Standard nodes are introduced into the network and determine the operating parameters in cooperation with adjacent nodes completely autonomous. Due to the specific field of application and the associated special requirements, in particular with regard to energy efficiency, a completely autonomous method leads to a heavy use of the energy supply, for example the battery capacity of both the new node and the nodes of the network involved in the method. This is particularly because the new node must scan all available frequency channels to identify the channel over which the network is communicating. Because the network for reasons Since energy efficiency only communicates across the channel for a short time interval, it is necessary to observe each channel for a considerable amount of time. In addition, once the correct channel has been identified, it is necessary to perform a time synchronization. Thus, this variant is both time-consuming and energy-consuming.

US 2006/0223569 A1 discloses an apparatus and a method for network management in wireless distributed systems by means of a mobile device. The procedure allows the steps described in b) to be carried out for the manual configuration of network nodes on site. The device serves primarily to test the functionality of the network nodes. When deploying the device is used to determine the best possible parameters for high availability. Such parameters are typically the signal strengths of the base network nodes, also referred to as backbone nodes, among each other. If nodes are already deployed and integrated into the network, their identity with the mobile device can be determined.

However, the following are missing, necessary for the solution of the problems described above: - self-configuration. The configuration of network nodes must be done manually in the known method. The introduction of a node into the network from an embryonic state in which the network node has no information about network or application parameters. - Communication with node and network in parallel operation during the scan phase. Thus, the possibility to handle the integration of a new node in the network for reasons of energy efficiency via the mobile device, not given. - Determining the exact position of a node using a localization process, which is handled by the mobile device, so that the network does not need to provide resources for this purpose. - Use an identity of the node to automatically assign certain roles, for example, or to load suitable applications. Further information about the node, such as existing hardware component, available sensors, are neither collected nor used for further configuration purposes in the known method.

Overall, it is unsatisfactory in the prior art that, in particular, the important question of a better energy efficiency of the configuration method is not solved.

It is an object of the invention to provide a method of integrating at least one new network node into an existing wireless sensor-actuator network, enabling better energy efficiency of the configuration method, and a device for integrating at least one new network node into an existing wireless sensor-actuator network ,

The object is solved by the features of claim 1 and of claim 10.

A first subject of the invention accordingly comprises a method for integrating at least one new network node into an existing wireless sensor-actuator network with the method steps:

- Introduce a device in the network.

- introducing at least one new network node into the network. - Determination or detection of operating parameters of the network by means of the device.

- Automatically coining the at least one new network node by transmitting the operating parameters from the device to the at least one new network node. - Recording the operation of the at least one new network node in the network. A basic idea of the invention consists in the use of a device, also referred to below as an imprint device (ID), which acts as a translator and / or intermediary between an existing sensor-actuator network, referred to below as a network, and an arbitrary number of new, hereinafter referred to as node network node of the sensor-actuator network is used. The network nodes may be sensor nodes as well as actuator nodes or basic network nodes.

The ID makes it possible to determine all operating parameters of the existing network for the participating new nodes and to characterize the new nodes according to these operating parameters. The ID handles complex communication tasks, such as discovering the network by scanning different frequency channels and negotiating the operating parameters. Thus, an energy-operational and cost-efficient commissioning of new nodes in existing wireless sensor actuator networks can be achieved. The network acts partially autonomously, since it is not the network nodes themselves that autonomously determine the operating parameters, but the ID.

Preferably, after the introduction of the at least one new network node into the network, a first commissioning of the at least one new network node takes place.

It is preferably provided that the at least one new network node is at initial startup in an embryonic state in which the network node: an identification feature, which does not necessarily have to be globally unique, but should be locally unique in the destination network,

Preferably, as of fabrication, a bootstrapping mechanism by means of which the network node is able to independently discover surrounding networks, as well as

a node profile describing the type and characteristics of the network node, has, wherein the network node is free of a specially recorded operating or application software. Therefore, it must first be configured with regard to the task to be accomplished. This includes, among other things, the installation of an executable program.

The at least one new network node preferably uses a specific radio channel, a so-called pilot channel, for the autonomous detection of surrounding networks.

According to an advantageous embodiment of the method according to the invention, it is provided that, after the device has been introduced into the network and after the at least one new network node has been introduced into the network: In a first step, the device is contacted by the at least one new network node, for example via a predefined network node Pilot channel and a determination of the identification feature of the network node and the information contained in the node profile is carried out. The identifier of a node includes all the information that the node can provide to identify and authenticate to the network and, upon successful completion of these steps, obtain access authorization. At the end of this step, the ID is owned by all of the

Node available information.

In a second step, the device is contacted to the existing network, preferably via a wireless communication interface in order to determine the operating parameters of the network, which are not known to it at first. Generally, wireless sensor-actuator networks are operated to minimize the active operating cycles, ie, the network is essentially inactive and only monitors at certain internally negotiated times (regular case) or when a particular event occurs (irregular case). on. However, for the general scenario of multi-hop communication, only the regular case is relevant. There, as already If the radio parameters of the network are not known to the ID a priori, then in this step it must monitor all radio channels at full transmit-receive strength for an extended period of time and, if finding the correct channel with the network, all duty cycle information and other parameters negotiate (eg time synchronization). This is done taking into account the information about the new node obtained in the first step. At the end of the second step, the ID has all the necessary information that the new node needs to be integrable into the network.

In a third step, the determined or learned information is impressed on the network via the communication connection established in the first step onto the at least one preferably embryonic new network node. At the end of the third step, the new network-level node is fully configured. - The fourth step is the start of the operation of the new node in the existing network based on the operating parameters impressed on it. At the end of the fourth step, the new node is fully integrated into the network.

A central aspect of the functioning of the device is that it is capable of using suitable

Communication interfaces with the or to be integrated new node and the network to communicate simultaneously. The device are due to design enough resources over a sufficiently long period available. The device may, but need not, have a user interface through which a user may manipulate certain parameters of the method.

An advantageous embodiment of the method according to the invention provides that the device is used as a trustworthy certification entity known to the network, which identifies and authenticates the at least one new network node with respect to the network. possible without this having to have appropriate mechanisms.

It is conceivable that the device for use as a trusted, the network known certification authority:

in the second step (B), an identification feature obtained in the first step (A), unknown to the network and therefore untrusted, such as a media access control (MAC) address or the like, is inserted therefrom using a certification key trusted authentication feature, in the third step (C) the at least one new network node additionally informs the generated authentication feature, wherein

- In the fourth step (D), the authentication feature is used in addition to the node's own identification feature as a partial identification feature.

The negotiation of the operating parameters with the network preferably requires prior authentication of the at least one new network node, which is carried out by the latter itself, the device serving as a gateway, which forwards messages between the at least one new network node and the network in each case without modification. This avoids an energy consuming, fully autonomous temporal synchronization between the new node and the network. The ID can take over this synchronization because increased power consumption is not a problem with this device.

The device preferably supports or enables a static localization of the at least one new network node. The goal of this variant is the assignment of nodes to defined geographical positions, both in the event that the node has the ability to perform even distance measurements to other nodes, as well as for the case that he does not have this ability. The following variants are conceivable:

- The node itself can perform distance measurements. In this case, the ID is placed in a particular order at a sufficient number of given reference points, thus simulating various nodes with known positions in turn. The obtained distance information as well as the known positions of the reference points serve to determine the position of the new node after completion of the measurement phase. The exact sequence of the individual steps may vary depending on the selected positioning method. For example, it is conceivable that, for reasons of energy efficiency, the elaborate calculations necessary for determining the position are largely carried out on the ID and thus the battery of the new node is spared.

The node itself can not perform distance measurements or otherwise determine its position. In this case, the position determination is carried out independently by the ID and the position gained is then impressed on the new node. For determination of the position by the ID any method, such as World Geodetic System 1984 (WGS-84) for the outdoor area or ultrasound for the indoor area, conceivable. The energy efficiency of the respective process does not matter, because the ID has sufficient battery capacity. In the simplest case, the position at which the new node is to be placed is fixed and e.g. marked by radio frequency identification (RFID) or bar code. The ID can read this position information and notify the new node.

The inventive method completely and adequately solves the problems mentioned in the introduction to the description.

A second subject of the invention comprises a device for integrating at least one new network node into an existing wireless sensor-actuator network, which direction as an imprint device (ID) or translator and / or intermediary between the existing network and the at least one new network node is used. For this purpose, the device comprises means for determining or acquiring operating parameters of an existing network, and means for transmitting the operating parameters to the at least one network node newly introduced into the network.

A central aspect of the functioning of the device is that it is capable of providing the means for

Determining or recording of operating parameters of an existing network, as well as the means for transmitting the operating parameters to a newly introduced into the network network node forming, suitable Kommunikationsschnittstel- len to the node or nodes to be integrated and the network to communicate preferably simultaneously. The device are due to design enough resources over a sufficiently long period available. The device may, but need not, have a user interface through which a user may manipulate certain parameters of the method.

Preferably, the device comprises as part of the means for determining operational parameters of an existing network, as well as part of the means for transmitting the operating parameters to the at least one network node newly introduced into the network: a radio interface for communication with an existing sensor Actuator network and / or - a wireless or wired interface for the

Communication with a new network node to be embossed, for example a sensor node, and / or

- A general communication interface for the configuration of the device, which is usually done before the start of the installation process.

The device may also be included as part of the means for detecting operational parameters of an existing one Netzwerkes, as well as part of the means for transmitting the operating parameters to the at least one newly introduced into the network network node: a user interface, for example in the form of a not necessarily graphical user interface, for interacting with a user and / or

a configuration unit for storing configuration data necessary for the installation process and / or a positioning unit for determining the position of new network nodes and for finding known network nodes and / or

an authentication unit for generating and forwarding authenticated information, such as identification features for network nodes, and / or a Certrificate Store for the protected storage of permanent and generated certificates and / or an Imprint Unit for accommodating the functionality required for the embossing of new nodes ,

Embodiments of the invention are illustrated in the drawings and are explained in more detail below. Show it :

Fig. 1 is a schematic representation of a device according to the invention.

2 shows a schematic representation of the sequence of a first method according to the invention.

Fig. 3 is a schematic representation of the sequence of a second method according to the invention.

A device 01 according to the invention designated as ID 01 is shown in FIG. The ID 01 comprises functional blocks 02 and external interfaces 03. The ID 01 preferably has three separate external interfaces: A radio interface 04 for communication with an existing sensor-actuator network 05.

A wireless or wired interface 06 for communication with a new network node 07 to be embossed, for example a sensor node 07.

A general communication interface 08 for the configuration of the ID 01, which usually takes place before the beginning of the installation process.

The ID also has the following functional blocks 02:

A user interface 09. This is a not necessarily graphical user interface for interacting with the user (for example GUI; Graphical User Interface).

- A configuration unit 10. This stores the configuration data required for the installation process.

- A Positioning Unit 11. This position determination, based on any location method, for new nodes and the discovery of known network nodes.

An Authentication Unit 12. This is used to create and forward authenticated information, such as node identification.

- A Certrificate Store 13. This is used for the protected storage of permanent and generated certificates.

- An Imprint Unit 14. This houses the entire functionality required for the embossing of new nodes.

FIG. 2 shows the steps of a first method according to the invention. A basic idea of the invention is the use of a device 01, also referred to as ID 01, which acts as a translator and / or intermediary between an existing sensor-actuator network 05, also designated as network 05, and any number of new ones, also as nodes 07 designated sensor and / or actuator node 07 is used. The ID oil makes it possible to determine all the operating parameters of the existing network 05 for the participating new nodes 07 and to characterize the new nodes 07 in accordance with these operating parameters. The ID 01 takes on complex communication tasks, such as discovering the network 05 by scanning various frequency channels and negotiating the operating parameters. Thus, an energy-operational and cost-efficient commissioning of new node 07 in existing wireless sensor-actuator networks 05 can be achieved. The network 05 acts partially autonomously, since not the network nodes 07 self-autonomously determine the operating parameters, but the ID 01.

An essential feature of the method according to the invention is that the participating new nodes 07 are in an embryonic state at initial startup. The essential features of this condition are:

The node 07 has an identification feature. This does not necessarily have to be globally unique, but should be locally unique in the destination network 05.

- The node 05 has a so-called Bootstrapping mechanism from fabrication. With the help of this mechanism, the node 07 is able to independently detect surrounding networks 05. For this he uses a certain radio channel, a so-called pilot channel.

The node 07 has a node profile which describes the design and functional features of the node 07. Node 07 has not loaded any special operating or application software. Therefore, it first has to be configured with regard to the task to be accomplished. This includes, among other things, the installation of an executable program.

A central aspect of the functioning of the ID 01 is that it is able to communicate with the node or nodes 07 and the network 05 to be integrated preferably via suitable communication interfaces 04, 06. Due to the design, ID 01 is sufficient Resources over a sufficiently long period of time available to perform the inventive method. The ID oil may or may not have a user interface 09 that allows a user to influence certain parameters of the method.

The integration of a new node 07 with the aid of the ID 01 is preferably carried out in the following steps illustrated in FIG. 2: In a first step A, the ID 01 makes contact with the new node 07 via the predefined pilot channel and determines the identification feature of the node 07 and the information contained in the node profile. The identification feature of a node 07 includes all information that the node 07 can provide to identify and authenticate to the network 05 and, as a result, to successfully obtain access authorization upon successful completion of these steps. At the end of this first step A, the ID 01 is in possession of all information available from node 07.

In a second step B, the ID 01 makes contact with the network 05 via a wireless communication interface 04 in order to determine the operating parameters of the network 05, which are initially unknown to it. In general, wireless sensor-actuator networks 05 are operated to minimize the active duty cycles, ie, the network 05 is essentially inactive and only watches at certain internally negotiated times (regular case) or when a particular event occurs (irregular case). However, for the general scenario of multi-hop communication, only the regular case is relevant. Since, as already mentioned, the radio parameters of the network 05 are not known to the ID 01 a priori, the ID 01 in the second step B has to monitor all radio channels with full transmission and / or reception strength over a longer period of time and if found the correct channel with the network 05 all information on the duty cycle and, if necessary, other parameters (eg time Negotiate synchronization). This takes place taking into account the information obtained in the first step A about the new node 07. At the end of the second step B, the ID 01 has all the necessary information that the new node 07 needs to be integrable into the network 05.

In a third step C, the determined or learned information is impressed on the network 05 via the already existing communication connection to the preferably still embryonic new node 07. At the end of the third step C, the new node 07 is fully configured at the network level.

In a fourth and final step D, the new node 07 starts operating in the network 05 based on the operating parameters embossed on it. At the end of the fourth step D, the new node 07 is completely integrated into the network 05.

FIG. 3 shows the detailed sequence of a first variant of the method according to the invention described above. The discovery of the network 05 by the ID 01 and the determination of the operating parameters of the network 05 are not shown in detail, since these steps are performed as in the method shown in FIG. The focus of the illustration in FIG. 3 is on the generation of an authentication feature for the new node 07 by the ID 01 and the use of this authentication feature in the further course of the method.

In the first variant of the method described above, shown in FIG. 3, the ID 01 can also be used as a trusted certification authority known to the network 05, which makes it possible to identify and authenticate the node 07 with respect to the network 05, without the latter appropriate mechanisms must have.

The following additions to the procedure described above are necessary for this: In the second step B, the ID oil uses an identification feature obtained in the first step A, unknown to the network 05 and therefore untrustworthy, such as a media access control (MAC) address or the like, to obtain a trusted authentication using a certification key to generate a characteristic. In the course of negotiating the operating parameters with the network 05, this authentication feature is communicated to the network 05 and can serve from this time the authorization of the node 07.

In the third step C, the authentication feature generated by the ID 01 is additionally communicated to the new node 07.

In the fourth step D, this authentication feature is used as a partial identification feature in addition to the node-specific identification feature.

In a second variant of the above-described method, the ID can support or enable the static localization of the new node. The goal of the variant is the assignment of nodes to defined geographical positions, both in the event that the node has the ability to perform even distance measurements to other nodes, as well as in the event that he does not have this capability. The following subvariants are conceivable:

The node can itself carry out distance measurements. In this case, the ID is placed in a particular order at a sufficient number of given reference points, thus simulating various nodes with known positions in turn. The obtained distance information as well as the known positions of the reference points serve to determine the position of the new node after completion of the measurement phase. The exact sequence of the individual steps may vary depending on the selected position determination method. For example, it is conceivable that, for reasons of energy efficiency, the complex calculations required to determine the position are largely based on the ID and so the battery of the new node is spared. The node itself can not perform distance measurements or otherwise determine its position. In this case, the position determination is carried out independently by the ID and the position gained is then impressed on the new node. For determination of the position by the ID any method, such as World Geodetic System 1984 (WGS-84) for the outdoor area or ultrasound for the indoor area, conceivable. The energy efficiency of the respective method does not matter, because the ID has sufficient battery capacity. In the simplest case, the position at which the new node is to be placed is fixed and marked, for example, by Radio Frequency Identification (RFID) or bar code. The ID can read this position information and notify the new node.

A third variant of the method described above is based on the assumption that the negotiation of the operating parameters with the network requires in advance a complex authentication of the node, which is to be performed only by the node itself. In this case, the ID serves only as a gateway that forwards messages between the new node and the network without modification. This will avoid an energy consuming, fully autonomous temporal synchronization between the new node and the network. The ID can take over this synchronization since an increased energy consumption in this device presents no problem.

It is important to emphasize that in the integration of a new node in an existing sensor-actuator network tasks are transferred according to the invention to the ID, which performs these tasks in cooperation with the network completely autonomous, ie without the need for human user interaction. The inventive method specified in this sense protects in particular the energy stores of both the new node to be integrated, as well as the already applied sensor actuator

Network as much as possible. This is the case to a greater extent, the more nodes are deployed in a timely manner, since once learned operating parameters can be used for the embossing of all other nodes. By using the very easy-to-use, largely autonomously operating ID, the complexity of installing new sensor nodes is greatly reduced, drastically reducing the frequency of errors. A basic idea of the invention consists in the completely autonomous implementation of the configuration of new sensor nodes and their integration into an existing sensor-actuator network with the aid of the proposed device.

The realization of the method according to the invention offers the following advantages:

- Reduction of the installation effort and the required qualification of the executing persons.

- Increasing the lifetime of the network by minimizing network-side configuration overhead for new nodes.

No network-specific configuration of the nodes to be deployed required in advance. During installation, preconfigured nodes are generally used from the factory. - Discovery of network operating parameters must be done only once if multiple nodes are installed in a timely manner. In a fully node-based method of the prior art, this step must be repeated by each individual node.

Appropriate configuration of the ID can increase the security against "foreign" or unauthorized nodes.The ID can act as a "trustworthy entity" to increase the new nodes. log on to the network without incurring any extra work. - With suitable equipment, the ID can take over this task for nodes that do not have their own positioning mechanisms. As a result, this function, which in any case is only required when deploying nodes, can be saved in static sensor networks. In addition, the energy supply of node and network is spared. The ID can serve in deployed networks to locate nodes whose position information is known, eg for maintenance purposes. In this case, the ID can offer a route guidance for the service technician.

Claims

claims

A method for integrating at least one new network node (07) into an existing wireless sensor-actuator network (05), characterized by the method steps:

- introducing a device (01) into the network (05);

- introducing at least one new network node (07) into the network (05);

- Determination or detection of operating parameters of the network (05) by means of the device (01);

- Automatic embossing of the at least one new network node (07) by transmitting the operating parameters from the device (01) to the at least one new network node (07);

- Recording the operation of the at least one new network node (07) in the network (05).

2. The method according to claim 1, characterized in that after the introduction of the at least one new network node (07) in the network (05) initial commissioning of the at least one new network node (07).

3. The method according to claim 2, characterized in that the at least one new network node (07) at initial startup: - an identification feature,

a bootstrapping mechanism by means of which the network node (07) is able to discover autonomously surrounding networks / 05) and a node profile which describes the design and functional features of the network node (07), the network node (07 ) is free of any special operating or application software.

4. The method according to claim 3, characterized in that the at least one new network node (07) for autonomous detection of surrounding networks (05) uses a pilot channel.

5. The method according to claim 3 or 4, characterized in that after introducing the device (01) into the network (07) and after introducing the at least one new network node (07) in the network (05): in a first step ( A) a contact of the device (01) with the at least one new network node (07) and a determination of the identification feature of the network node (07) and the information contained in the node profile is carried out;

- In a second step (B), a contact of the device (01) with the existing network (05) takes place to determine the operating parameters of the network (05); in a third step (C), the information determined via the network (05) is impressed on the at least one new network node (07) via the communication connection established in the first step (A);

- Whereupon then as a fourth step (D) the start of the operation of the new network node (07) in the existing

Network (05) based on the impressed him operating parameters.

6. Method according to claim 5, characterized in that the device (01) is used as a trustworthy certification entity known to the network (05), which identifies and authenticates the at least one new network node (07) to the network (05). allows.

7. The method according to claim 6, characterized the device (Ol) for use as a trusted certification entity known to the network (05):

- In the second step (B) used in the first step (A), the network (05) unknown identifier used to generate a trusted authentication feature using a certification key, in the third step (C) the at least one new network node (07) additionally informs the generated authentication feature, wherein

8. The method according to claim 5, characterized in that the negotiation of the operating parameters with the network (05) requires in advance authentication of the at least one new network node (07), which is carried out by the latter itself, wherein the device (01) as Gateway is used, which forwards messages between the at least one new network node (07) and the network (01).

9. The method according to any one of claims 5 to 8, characterized in that the device (01) supports a static localization of the at least one new network node (07).

10. Device (01) for integrating at least one new network node (07) into an existing wireless sensor

Actuator network (05), characterized in that the device (01) serves as a translator and / or intermediary between the existing network (05) and at least one new network node (07), and for this purpose means for determining or acquiring operating parameters of a existing network (05), as well as means of driving parameters to the at least one newly introduced into the network (05) network node (07).

11. The device according to claim 10, characterized in that the device (01) as part of the means for detection or detection of operating parameters of an existing network (05), and as part of the means for transmitting the operating parameters to the at least one new in the Network (05) introduced network node (07):

- A radio interface (04) for communication with an existing sensor-actuator network (05) and / or

a wireless or wired interface (06) for communication with a new network node (07) to be embossed and / or a general communication interface (08) for the configuration of the device (01).

12. The device according to claim 10 or 11, characterized in that the device (01) as part of the means for detecting or detecting operating parameters of an existing network (05), and as part of the means for transmitting the operating parameters to the at least one new network node (07) introduced into the network (05):

a user interface (09) for interacting with a user and / or

a configuration unit (10) for storing configuration data necessary for the installation process and / or a positioning unit (11) for determining the position of new network nodes and for locating known network nodes and / or an authentication unit (12) for generating and forwarding authenticated information, and /or

a Certrificate Store (13) for protected storage of permanent and generated certificates and / or - An imprint unit (14) for accommodating the functionality required for the embossing of new nodes includes.