WO2012051777A1 - Procédé de contrôle d'accès et dispositif pour un réseau de capteurs sans fil (wsn) pour accéder à un réseau de télécommunication par l'intermédiaire de multiples passerelles - Google Patents

Procédé de contrôle d'accès et dispositif pour un réseau de capteurs sans fil (wsn) pour accéder à un réseau de télécommunication par l'intermédiaire de multiples passerelles Download PDF

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Publication number
WO2012051777A1
WO2012051777A1 PCT/CN2010/080406 CN2010080406W WO2012051777A1 WO 2012051777 A1 WO2012051777 A1 WO 2012051777A1 CN 2010080406 W CN2010080406 W CN 2010080406W WO 2012051777 A1 WO2012051777 A1 WO 2012051777A1
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Prior art keywords
wsn
gateway
node
network
wsn gateway
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PCT/CN2010/080406
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English (en)
Chinese (zh)
Inventor
贾倩
马景旺
余万涛
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中兴通讯股份有限公司
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Publication of WO2012051777A1 publication Critical patent/WO2012051777A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

Definitions

  • the present invention relates to a network technology, and in particular, to an access control method and apparatus for a wireless sensor network to access a telecommunications network through multiple gateways.
  • wireless sensor networks are a new information acquisition and processing technology. Due to recent improvements in microfabrication technology, communication technology, and battery technology, tiny sensor terminals have the ability to sense, wirelessly communicate and process information. Such sensor terminals can not only sense and detect the target of the environment and its changes, but also process the collected data and send the processed data to the data collection center by wireless transmission.
  • These sensor terminals typically consist of a power supply, sensing components, an embedded processor, memory, communication components, and execution software. Among them, the power supply provides the sensor node with the energy necessary for normal operation.
  • the sensing component is used to sense, acquire, and convert external information into digital signals.
  • the embedded processor is responsible for coordinating the work of various parts of the node, such as performing necessary processing, saving, and controlling the operating mode of the sensing component and the power supply.
  • the communication component is responsible for communicating with other sensors or observers.
  • Execution software provides the necessary software support for sensor terminals, such as embedded operating systems, embedded database systems, and more. Detecting thermal, infrared, sonar, radar and seismic signals in the surrounding environment of the sensor terminal by means of a variety of sensing components built into the sensor terminal, thereby detecting temperature, humidity, noise, light intensity, pressure, soil composition , a lot of information such as the size, speed and direction of moving objects. Sensor terminals typically form a network in a self-organizing or pre-configured manner.
  • wireless sensor networks In terms of communication methods, although wired, wireless, infrared, and optical formats can be used, it is generally considered that short-range wireless low-power communication technology is most suitable for the use of sensor networks, generally called wireless sensor networks.
  • WSN Wireless Sensor Network
  • the current widely used wireless low-power communication technologies include: IEEE ( Institute of Electrical and Electronics Engineers) 802.15.4 and Zigbee technology.
  • IEEE 802.15.4 is a low-speed wireless personal area network (WPAN) standard developed by IEEE. IEEE 802.15.4 specifies the physical layer and medium access control layer (MAC, Media Access Control) standards. The IEEE 802.15.4 compliant communication module features low cost, low power consumption, and small size.
  • WPAN wireless personal area network
  • IEEE 802.15.4 specifies the physical layer and medium access control layer (MAC, Media Access Control) standards.
  • MAC medium access control layer
  • the IEEE 802.15.4 compliant communication module features low cost, low power consumption, and small size.
  • FIG. 1 is a schematic diagram of a combined network structure. As shown in FIG. 1, the combined network specifically includes a combination of a wireless sensor network and a telecommunication network, such as a second generation (2G, 2nd Generation) mobile communication, and a third generation (3G, 3rd Generation).
  • a wireless sensor network such as a second generation (2G, 2nd Generation) mobile communication
  • 3G, 3rd Generation a third generation
  • xDSL x Digital Subscriber Line
  • FTTx Fiber To The x, x for home, building, node, premises
  • broadband wireless access satellite/microwave, etc.
  • the wireless sensor network can effectively transmit the data perceived by the wireless sensor network to the data center.
  • the way of acquiring data of the natural world can be greatly changed.
  • it can also centrally manage wireless sensor networks to solve the problem that wireless sensor networks that are currently scattered everywhere are difficult to manage.
  • the combination of a wireless sensor network and a telecommunication network refers to connecting a wireless sensor network with a telecommunication network, and utilizing the telecommunication network to monitor, manage, and complete the service carrying and cooperation of the wireless sensor network and the services provided by the telecommunication network, and expand the telecom network.
  • the services provided by wireless sensor networks are typically a wireless sensor network connected to a telecommunications network platform via a WSN gateway device.
  • the WSN node is a wireless sensor network.
  • the sensor node is connected to the WSN gateway by one or more hops.
  • the WSN node is responsible for collecting and uploading data, as well as receiving and executing commands.
  • the number of devices that make up a wireless sensor network is as few as a few hundreds, and devices can be networked in a star, tree, or mesh (MESH) manner, some of which have strong networking and Data forwarding capability.
  • the WSN node in the wireless sensor network reports the data to the relevant network element entity on the telecommunication network side through the WSN gateway.
  • the WSN nodes in the wireless sensor network may be of various types, including temperature measurers, electricity meters, fire alarms, etc. These different types of WSN nodes correspond to different business applications.
  • the telecommunication network platform includes functional entities such as a management platform and a service platform.
  • the management platform is responsible for implementing the device management function;
  • the service platform is responsible for integrating the services provided by the various service providers and providing them to the end users, and managing the use of the services by the users, and is responsible for completing the entire business process.
  • WSN gateway As a device connecting wireless sensor network and telecommunication network, WSN gateway mainly completes wireless sensor network configuration and networking, protocol conversion, address mapping and data forwarding.
  • the WSN node is connected to the telecommunications network platform through the WSN gateway.
  • the WSN node is a sensor node constituting the wireless sensor network and is connected to the WSN gateway by one or more hops.
  • the WSN node is responsible for collecting and uploading data, as well as receiving and executing commands.
  • the devices that make up the WSN are as few as a few and hundreds of devices.
  • the devices can be networked in a star, tree, or MESH mode. Some devices may have strong networking and data forwarding capabilities.
  • the WSN node is the end of the extended network.
  • the characteristics of WSN node dense deployment make a wireless sensor network often have a large number of nodes, which may cause a large load on the WSN gateway. Especially when the amount of data is large, congestion and data loss may occur, which may affect normal work. Therefore, when the wireless sensor network is combined with the telecommunication network, in order to balance the load and share the network burden, it is necessary to solve the problem of large load and possible congestion.
  • the main WSN gateway itself also undertakes the functions of wireless sensor network configuration and networking, protocol conversion, address mapping, and data forwarding, if the primary WSN gateway performs scheduling of multiple WSN gateways, it will inevitably affect the working efficiency of the primary WSN gateway. Since the current network technology is still in the discussion stage, how to ensure that the WSN node selects the appropriate WSN gateway to access the telecommunication network accurately and efficiently, there is no technical solution available for reference. Summary of the invention
  • the main object of the present invention is to provide an access control method and apparatus for a wireless sensor network to access a telecommunication network through multiple gateways, and a management platform in the telecommunication network provides access control for a WSN node to access a telecommunication network. method.
  • An access control method for a wireless sensor network accessing a telecommunication network through multiple gateways is applied to a network combining a wireless sensor network and a telecommunication network, wherein the wireless sensor network is provided with a WSN node and a WSN gateway; the telecommunication network
  • the management platform is configured to perform scheduling allocation of the WSN gateway, and allocate the WSN gateway used by the WSN node to access the telecommunication network.
  • the scheduling assignment of the WSN gateway is performed, and the WSN gateway used when the WSN node is allocated to access the telecommunication network is specifically:
  • the management platform determines that a WSN node joins in the wireless sensor network, or a WSN gateway joins, or when the WSN gateway exits, assigns a WSN gateway to the newly added WSN node, or assigns a WSN node to the newly added WSN gateway, or exits
  • the WSN node connected under the WSN gateway re-allocates the WSN gateway; and notifies the WSN node and the WSN gateway allocated for the WSN node with the corresponding information of the WSN gateway allocated for the WSN node.
  • the management platform allocates the WSN gateway used by the WSN node to access the telecommunication network
  • the related information and the communication connection configuration information of the WSN node are sent to the allocated WSN gateway
  • the allocated WSN gateway is The related information and the communication connection configuration information are sent to the WSN node.
  • the method further includes:
  • the management platform stores the correspondence between the WSN gateway and the WSN node connected to the WSN gateway, the related information of each WSN gateway and each WSN node connected to the WSN gateway, and corresponding communication connection configuration information.
  • the related information of the WSN node includes the identifier and address information of the WSN node; the related information of the WSN gateway includes address information of the WSN gateway; and the communication connection configuration information is a WSN node and a WSN allocated to the WSN node.
  • the WSN gateway records and stores the identifier and network address of the WSN node accessing the telecommunication network through the WSN gateway, and the communication connection configuration information between the WSN node and the WSN gateway; and the communication between the WSN node and the gateway is saved. Connection configuration information and address information of the gateway.
  • each WSN gateway in the wireless sensor network communicates over a wireless sensor network or over a telecommunications network.
  • one WSN node has a corresponding relationship with more than one WSN gateway.
  • a wireless sensor network is connected to an access control device of a telecommunication network through a multi-gateway, and is applied to a combined network including a wireless sensor network and a telecommunication network, and the device includes:
  • the allocation unit is configured to perform scheduling allocation of the WSN gateway, and allocate the WSN gateway used by the WSN node to access the telecommunications network.
  • the allocating unit further includes: a determining subunit, an assigning subunit, and a notification subunit; wherein Determining a subunit for determining that a WSN node joins in the wireless sensor network, or when a WSN gateway joins, or when the WSN gateway exits, triggering the allocation unit;
  • An allocation subunit configured to allocate a WSN gateway for the newly joined WSN node, or allocate a WSN node for the newly added WSN gateway, or reassign the WSN gateway for exiting the WSN node connected under the WSN gateway;
  • a notification subunit configured to notify the WSN node and the WSN gateway allocated to the WSN node respectively, corresponding information of the WSN node and the WSN gateway allocated to the WSN node.
  • the notification subunit when the determining subunit determines that the WSN node accesses the WSN gateway of the telecommunication network, the notification subunit further sends related information and communication connection configuration information of the WSN node to the determined WSN gateway, and And transmitting the determined information about the WSN gateway and the communication connection configuration information to the WSN node.
  • the device further includes:
  • a storage unit configured to store a correspondence between the WSN gateway and the WSN node connected to the WSN gateway; and, the WSN gateway and related information of each WSN node connected to the WSN gateway, and corresponding communication connection configuration information.
  • the multi-WSN gateway in the wireless sensor network is scheduled and allocated by the management platform of the telecommunication network, and the multiple gateways are in a peer-to-peer mode, and the WSN gateway is not necessarily determined by the main WSN gateway in the WSN gateway for the WSN node. That is, the WSN gateway can be dedicated to the data communication of the WSN node, the efficiency of the WSN node accessing the telecommunication network is improved, and the data congestion problem caused by the low communication efficiency caused by the WSN gateway being used for the WSN gateway allocation can be avoided. The normal and efficient operation of the combined network. DRAWINGS
  • Figure 1 is a schematic diagram of a combined network structure
  • FIG. 2 is a flowchart of a method for determining a WSN gateway for a WSN node according to the present invention
  • FIG. 3 is a functional block diagram of an apparatus for determining a WSN gateway for a WSN node according to the present invention. detailed description
  • the basic idea of the present invention is: scheduling and allocating multiple WSN gateways in a wireless sensor network by a management platform of a telecommunication network, and multiple gateways are in a peer-to-peer mode, and no longer need to be determined by the primary WSN gateway in the WSN gateway for the WSN node.
  • the WSN gateway which enables the WSN gateway to be dedicated to the data communication of the WSN node, improves the efficiency of accessing the WSN node to the telecommunication network, and also avoids data congestion caused by the low communication efficiency caused by the WSN gateway being used for WSN gateway allocation.
  • the problem is to ensure the normal and efficient operation of the combined network.
  • the following is an example of a wireless sensor network based on ZigBee technology to illustrate how a WSN node accesses a telecommunications network through multiple WSN gateways.
  • ZigBee is a short-range, low-rate, low-cost, low-power wireless network technology. It uses Direct Sequence Spread Spectrd (DSSS) technology and operates at 868MHz, 915MHz or 2.4GHz, all without the need to apply for a license.
  • DSSS Direct Sequence Spread Spectrd
  • the configuration of wireless personal area network based on ZigBee technology is a new development of short-range wireless communication technology in recent years, and has been widely used in the field of industrial automation and smart home.
  • the function of the network coordinator is to coordinate the establishment of the network, which is the first device in the network.
  • a ZigBee network has only one network coordinator, which is responsible for initiating the establishment of new networks, setting network parameters, managing nodes in the network, and storing networks. Node information, etc., can also perform the function of the router after the network is formed. Routers can participate in route discovery, message forwarding, and extend the coverage of the network by connecting other nodes.
  • the endpoint connects to the network through a network coordinator or router, but does not allow any other node to join the network through it.
  • the application scenario of the present invention is a network in which the telecommunication network shown in FIG. 1 is combined with a wireless sensor network. It should be noted that the general structure of the combined network in the present invention and the existing combined network. The structure is exactly the same, except that some of the functions implemented by some network elements are different from the existing network elements.
  • the allocation of the WSN gateway of the WSN node is mainly performed by the management platform in the telecommunication network.
  • the telecommunication network includes a management platform and a service platform.
  • the management platform is responsible for implementing device management functions.
  • the service platform is responsible for integrating services provided by various service providers and providing them to end users, while using services for users. The situation is managed and the entire business process is completed.
  • the WSN gateway mainly performs wireless sensor network configuration and networking, protocol conversion, address mapping, and data forwarding. Multiple WSN gateways can exist in the network.
  • the WSN node is connected to the telecommunications network platform through the WSN gateway.
  • the first WSN gateway joining the wireless sensor network acts as a coordinator in the ZigBee network and is responsible for the formation of the wireless sensor network.
  • the subsequently added WSN gateway acts as a router to join the wireless sensor network.
  • the WSN node can join the wireless sensor network as a router or terminal node. Both the WSN gateway and the WSN node need to support ZigBee technology.
  • a trust center is a trusted device that distributes security keys across the network. It allows communication-related devices to join the wireless sensor network and assign keys, thus ensuring end-to-end security between devices.
  • the network coordinator can become a trust center.
  • the device In order to implement trust management, the device needs to receive the initial master key from the trust center, and the link key must also be obtained from the trust center in a secure manner.
  • the first WSN gateway that joins the wireless sensor network acts as a trust center for network security management.
  • the WSN gateway and the management platform or other network entity in the telecommunication network implement identity authentication and secure communication with the WSN gateway through the identity of the WSN gateway.
  • the WSN gateway and the WSN node make a secure connection through the link key.
  • the WSN gateway that joins the wireless sensor network creates the wireless sensor network as the network coordinator, it needs to register with the management platform and complete the access authentication to the telecommunication network; the WSN gateway to be added later can be used as The router joins the wireless sensor network.
  • the network coordinator can send the newly added WSN gateway information to the management platform, or can be registered by the newly added WSN gateway to the management platform.
  • the management platform will save and maintain the information of each WSN gateway.
  • the information includes parameters such as the address and access capability of the WSN gateway.
  • the WSN node is authenticated and configured by the network coordinator to join the wireless sensor network, and then the network coordinator will notify the management platform and upload relevant information of the WSN node to the management platform.
  • the management platform will save and maintain information about each WSN node, including the identity and address of the WSN node.
  • the network coordinator authenticates the WSN node, and negotiates with the WSN node based on the initial master key to determine the link key required for the WSN node to join the sensor network, thereby implementing The WSN node successfully joins the sensor network, and a secure communication connection is established between the network coordinator and the WSN node through the link key.
  • the management platform is responsible for scheduling and allocating the WSN gateway when the WSN node accesses the telecommunication network according to the information of each WSN gateway and the related information of the WSN node. During the allocation, the management platform sends the related information of the WSN node and the communication connection configuration information to the designated WSN gateway, and sends the related information of the specified WSN gateway and the communication connection configuration information to the corresponding WSN node.
  • the related information of the WSN node includes the identifier, address, and the like of the WSN node; the related information of the WSN gateway includes the address of the WSN gateway.
  • the communication connection configuration information is a configuration parameter required for establishing a communication connection between the designated WSN gateway and the WSN node to which it is responsible, including a link key and the like, and the WSN gateway and the WSN node establish security through the link key. Communication connection.
  • the management platform will save and maintain the correspondence between a WSN gateway and the WSN node it is responsible for.
  • the management platform also stores related information of each WSN gateway and each WSN node and corresponding communication connection configuration information. In the present invention, the management platform performs scheduling allocation of multiple gateways, and after the WSN node allocates the gateway used when accessing the telecommunication network, the network coordinator no longer provides access to the original WSN node, and the WSN node has obtained the obtained from the management platform. After the associated information of the assigned gateway and the communication connection configuration information establish a secure communication connection with the assigned gateway, the assigned gateway is responsible for accessing the telecommunications network for the WSN node.
  • one WSN node may correspond to more than one WSN gateway, that is, one WSN node may access the telecommunication network through one or more WSN gateways, realize self-detection or monitoring data transmission, and accept telecommunications. Control commands sent by the network, etc.
  • each WSN gateway records and stores the identification and network address of the WSN node accessing the telecommunication network through the WSN gateway, the communication connection configuration information between the WSN node and the WSN gateway, and the like.
  • Each WSN gateway in a wireless sensor network can communicate over a wireless sensor network or over a telecommunications network.
  • the method for determining a WSN gateway for a WSN node includes the following steps:
  • Step 201 The management platform of the telecommunication network records and saves related information of the WSN gateway and the WSN node.
  • the management platform After the WSN gateway and the WSN node join the wireless sensor network, the management platform will record and save the information after receiving the information.
  • Step 202 The management platform of the telecommunication network allocates the WSN gateway when the WSN node accesses the telecommunication network.
  • the management platform allocates the WSN gateway to the WSN node when accessing the telecommunication network according to a certain policy, and the management platform sends the related information and the communication connection configuration information of the WSN node to the designated WSN gateway, and the related information of the designated WSN gateway and the Communication connection configuration information Send to the corresponding WSN node.
  • the policy of the WSN gateway when the WSN node allocates access to the telecommunication network can be determined by the specific operator. Specifically, the principle that the number of route hops is small, the WSN gateway does not exceed the threshold load, and the load is as balanced as possible is generally adopted.
  • one or more WSN gateways with fewer hops (such as less than the set hop count) from the WSN node of the to-be-assigned gateway are used as gateways for accessing the telecommunication network, and fewer routes are found.
  • the WSN gateway with the least load hop count is selected, and the WSN gateway with the lightest load is selected as the WSN node access gateway.
  • the selection strategy of the gateway is not difficult, and the substantive content of the technical solution of the present invention is not implemented, and the implementation details thereof will not be described herein.
  • the communication connection configuration information is a configuration parameter required for establishing a communication connection between the designated WSN gateway and the WSN node to which it is responsible, including a link key and the like, and the WSN gateway and the WSN node establish security through the link key. Communication connection.
  • Step 203 After the management platform of the telecommunication network schedules and allocates the WSN gateway and the WSN node in the wireless sensor network, the correspondence between the WSN gateway and the WSN node that is responsible for accessing is saved and maintained, and the management platform also stores each WSN gateway. Information related to each WSN node and corresponding communication connection configuration information.
  • the management platform may select another WSN gateway that is closer to it for a certain WSN node, thereby reducing it and the WSN.
  • the routing path between gateways reduces the communication complexity and energy saving effect in the sensor network.
  • the management platform changes the WSN gateway accessed by the WSN node in order to balance the load, and then can be restarted by the management platform.
  • a new WSN gateway is provided for the WSN node to provide the telecommunication network access.
  • the management platform sends the information about the WSN node and the communication connection configuration information to the newly designated WSN gateway, and sends the information of the new WSN gateway to the WSN node that needs to be changed. And notify the WSN gateway change message that the WSN node is provided with the telecommunication network.
  • Network access WSN gateway is provided.
  • the newly designated WSN gateway adds related information of the WSN node to the WSN gateway, and the original WSN gateway deletes related information of the WSN node saved in the WSN gateway. Subsequently, the newly designated WSN gateway will provide telecommunication network access for the WSN node, and the original WSN gateway no longer provides telecommunication network access for the WSN node.
  • the management platform and the WSN gateway used by the WSN node to access the telecommunication network will clear the saved information about the WSN node, and the WSN gateway is no longer the WSN node. Provide telecommunications network access.
  • the management platform allocates the WSN node that the WSN gateway is responsible for to the other WSN gateways, performs adjustment of the WSN gateway allocation, and updates the saved WSN gateway and Correspondence relationship of WSN nodes and their corresponding information and communication connection configuration information.
  • the WSN gateway involved in the adjustment also needs to update the saved WSN node information according to the scheduled result.
  • the management platform may subsequently send related information of the WSN node to the telecommunication network service platform, and the telecommunication network service platform may configure relevant parameters of the WSN node, enable services supported by the WSN node, and enable the WSN node to pass the WSN gateway to The business platform reports data.
  • the apparatus for determining a WSN gateway for a WSN node includes the application to a combined network including a wireless sensor network and a telecommunication network.
  • the device includes:
  • the allocating unit 30 is configured to perform scheduling allocation of the WSN gateway, and allocate the WSN gateway used by the WSN node to access the telecommunication network.
  • the above-mentioned allocating unit 30 further includes: a determining subunit 301, an assigning subunit 302, and a notification subunit 303;
  • a determining subunit 301 configured to determine that a WSN node joins in the wireless sensor network, or has a WSN gateway join, or the WSN gateway exits, triggering the assigning subunit 302;
  • An allocation subunit 302 configured to allocate a WSN gateway to the newly joined WSN node, or be new The added WSN gateway allocates a WSN node, or re-allocates the WSN gateway for exiting the WSN node connected under the WSN gateway;
  • the notification subunit 303 is configured to notify the WSN node and the WSN gateway allocated for the WSN node to the WSN node and the corresponding information of the WSN gateway allocated to the WSN node.
  • the notification subunit 303 When the determining subunit 301 determines that the WSN node accesses the WSN gateway of the telecommunication network, the notification subunit 303 further sends the related information of the WSN node and the communication connection configuration information to the determined WSN gateway, and determines the determined The information about the WSN gateway and the communication connection configuration information are sent to the WSN node.
  • the device for determining a WSN gateway for a WSN node includes a storage unit 31, configured to store a correspondence between a WSN gateway and a WSN node connected to the WSN gateway; and, the WSN gateway and the WSN gateway are connected. Information about each WSN node and corresponding communication connection configuration information.
  • the related information of the WSN node includes the identifier and address information of the WSN node; the related information of the WSN gateway includes the address information of the WSN gateway; and the communication connection configuration information establishes a communication connection between the WSN node and the WSN gateway allocated to the WSN node.
  • Required configuration parameters include the identifier and address information of the WSN node; the related information of the WSN gateway includes the address information of the WSN gateway; and the communication connection configuration information establishes a communication connection between the WSN node and the WSN gateway allocated to the WSN node.
  • the WSN gateway records and stores the identifier and network address of the WSN node accessing the telecommunication network through the WSN gateway, and the communication connection configuration information between the WSN node and the WSN gateway; the WSN node stores the communication connection configuration information with the gateway. And the address information of the gateway.
  • each WSN gateway in the wireless sensor network communicates through a wireless sensor network or through a telecommunication network.
  • a WSN node has a corresponding relationship with more than one WSN gateway.
  • the apparatus for determining a WSN gateway for a WSN node shown in FIG. 3 of the present invention is designed to implement a method for determining a WSN gateway for a WSN node, and the WSN node shown in FIG. 3 determines each device in the WSN gateway.
  • the function of the processing unit can be understood with reference to the aforementioned related description of the combined network or the method for determining the WSN gateway for the WSN node. In the picture
  • the functions of the various processing units can be implemented by a program running on the processor, or by a specific logic circuit.

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Abstract

La présente invention porte sur un procédé de contrôle d'accès pour un réseau de capteurs sans fil (WSN) pour accéder à un réseau de télécommunication par l'intermédiaire de multiples passerelles, le procédé étant appliqué à un réseau comprenant l'intégration du WSN et du réseau de télécommunication. Le WSN a des nœuds WSN et de multiples passerelles WSN. Le réseau de télécommunication a une plateforme de gestion qui affecte les passerelles WSN devant être utilisées pour des nœuds WSN, afin d'accéder au réseau de télécommunication. La présente invention porte également sur un dispositif de contrôle d'accès pour le WSN pour accéder au réseau de télécommunication. La présente invention assure que le réseau d'intégration fonctionne normalement et de manière efficace.
PCT/CN2010/080406 2010-10-19 2010-12-28 Procédé de contrôle d'accès et dispositif pour un réseau de capteurs sans fil (wsn) pour accéder à un réseau de télécommunication par l'intermédiaire de multiples passerelles WO2012051777A1 (fr)

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WO2017200131A1 (fr) * 2016-05-18 2017-11-23 전자부품연구원 Système de réseau de capteurs sans fil capable de redistribution de nœud d'accès, et procédé associé

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