WO2012051775A1 - 无线传感器网络终端的寻址方法及结合网络 - Google Patents

无线传感器网络终端的寻址方法及结合网络 Download PDF

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Publication number
WO2012051775A1
WO2012051775A1 PCT/CN2010/080330 CN2010080330W WO2012051775A1 WO 2012051775 A1 WO2012051775 A1 WO 2012051775A1 CN 2010080330 W CN2010080330 W CN 2010080330W WO 2012051775 A1 WO2012051775 A1 WO 2012051775A1
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wsn
network
terminal
wsn terminal
storage unit
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PCT/CN2010/080330
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English (en)
French (fr)
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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 WO2012051775A1 publication Critical patent/WO2012051775A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support

Definitions

  • the present invention relates to a network technology, and in particular, to a method and a combination network for a wireless sensor network (WSN) terminal.
  • WLAN wireless sensor network
  • WSN is 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.
  • short-range wireless low-power communication technology is most suitable for use of a sensor network, and is generally called WSN.
  • WSN wireless low Power communication technologies
  • 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 (PHY) 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 (PHY) 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.
  • the ZigBee Alliance is an organization dedicated to developing reliable, low-cost, low-power, wireless network connectivity monitoring and control products based on open global standards.
  • the physical layer and MAC layer of the ZigBee standard use IEEE 802.15.4 technology, and the network layer, security management, application layer specification, and interoperability are developed by the ZigBee Alliance.
  • the ZigBee smart energy public applications profile and the ZigBee home automation public applications profile in the ZigBee standard are separate for business environment applications and home applications.
  • the WSN terminal's micro-processing capability and wireless communication capability make WSN have broad application prospects, including military applications, biological and environmental monitoring, health applications, home applications, industrial control. And monitoring, etc.
  • the communication in the WSN can be encrypted, and the encryption operation in the WSN uses the Advanced Encryption Standard (AES) algorithm, and the symmetric key length used is 128 bits.
  • the keys used in the WSN mainly include: a master key, which is a shared key used in the process of establishing a symmetric key establishment protocol.
  • the master key is the basis for long-term security between the two devices and can be used to generate link keys.
  • a link key, in a PAN network, is a key shared between two devices for secure communication between two devices.
  • Network key which is a shared key in a PAN network and is used for the security of broadcast communication.
  • a trust center is a type of trusted device that distributes security keys across the network. It allows devices to join the network and assign keys, thus ensuring end-to-end security between devices.
  • the network coordinator can become a trust center.
  • the Trust Center provides the following three functions: Trust Management, the task is responsible for device authentication for joining the network; network management, the task is responsible for obtaining and assigning network keys to the device; configuration management, the task is to bind the application to the device it manages, End-to-end secure transfer between two devices.
  • the device In order to implement trust management, the device requires the trust center to receive the initial master key.
  • the device should receive the initial network key and can only obtain updates to the network key from the Trust Center.
  • the device needs to receive a master key or link key from the trust center to establish an end-to-end secure link between the two devices.
  • the additional link key, master key, and network key can only be obtained from the trust center in a secure manner.
  • the trust center should periodically update the network according to a certain strategy. The key is passed and a new network key is passed to each device.
  • the combination of WSN and telecommunication network refers to connecting the WSN with the telecommunication network, using the telecommunication network to monitor, manage and complete the service bearer and cooperation implementation of the WSN and the services it provides, and extend the services provided by the WSN through the telecommunication network.
  • the combination of WSN and telecommunication network is generally that the WSN is connected to the telecommunication network platform through the gateway device.
  • the WSN terminal is a sensor node constituting the WSN and is connected to the gateway by one or more hops.
  • the WSN terminal 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 hundreds, and the devices can be networked in a star, tree, or mesh (MESH) manner, some of which have strong networking and data forwarding. ability.
  • the software of the WSN terminal needs to be upgraded or the parameters in the WSN terminal are required from the perspective of WSN terminal management. Update, etc.
  • the network element entity related to the telecommunication network side needs to actively establish communication with the WSN terminal, and after establishing communication, perform software upgrade and parameter update of the WSN terminal.
  • the WSN terminal is in the WSN, and the network element entity associated with the telecommunication network side does not know the network address of the WSN terminal, so the network element entity on the telecommunication network side cannot directly establish communication with the WSN terminal. At present, there is no corresponding technical solution for this problem and demand.
  • the addressing method of the WSN terminal needs to be considered, so that the network element entity on the telecommunication network side can find the WSN terminal located in the WSN and establish communication, so that the network element on the telecommunication network side can be made.
  • the entity performs management functions for the WSN terminal.
  • the main object of the present invention is to provide an addressing method and a bonding network for a WSN terminal, so that a network element entity on the telecommunication network side can find a WSN terminal located in the WSN and establish communication.
  • the present invention provides an addressing method for a WSN terminal, the method comprising:
  • the network element entity on the telecommunication network side obtains the network address of the WSN terminal from the storage unit on the telecommunication network side; the network element entity finds the WSN terminal according to the network address of the WSN terminal.
  • the storage unit stores at least an identifier of the WSN terminal and a network address of the corresponding WSN terminal.
  • the network element entity obtains a network address of the WSN terminal from the storage unit, specifically:
  • the network element entity provides an identifier of the WSN terminal to the storage unit
  • the storage unit searches for a network address of the corresponding WSN terminal according to the identifier of the WSN terminal, and returns the network address to the network element entity. Further, the network unit entity provides the identifier of the WSN terminal to the storage unit, specifically: the network unit entity sends a request for addressing the WSN terminal to the storage unit, where the request includes the identifier of the WSN terminal.
  • the method further includes:
  • the WSN gateway allocates a network address to the WSN terminal. Further, after the WSN terminal joins the WSN, the method further includes: sending, by the WSN gateway, the identifier of the WSN terminal and the allocated network address to the storage unit for saving; the WSN gateway sends the identifier of the WSN terminal to The network element entity saves.
  • the network address is an IP address.
  • the storage unit is disposed in a WSN management platform
  • the present invention also provides a bonding network, including a telecommunication network and a WSN; the telecommunication network includes a network element entity and a storage unit; and the WSN includes a WSN terminal;
  • the network element entity is configured to obtain a network address of the WSN terminal from the storage unit, and is further configured to find the WSN terminal according to the network address of the WSN terminal returned by the storage unit;
  • FIG. 1 is a schematic flow chart of an addressing method of a WSN terminal according to the present invention
  • FIG. 3 is a schematic structural diagram of an embodiment of a network according to the present invention. detailed description
  • the WSN can use the 6LowPan technical solution formulated by the IETF organization, and the communication within the WSN and the communication between the WSN and the telecommunication network can use the IP technology for communication.
  • the WSN gateway allocates a network address conforming to the IP address format for the WSN terminal.
  • the network address of the WSN terminal is stored in the storage unit on the telecommunication network side; after the network element entity on the telecommunication network side obtains the network address of the WSN terminal from the storage unit, the WSN terminal is found according to the IP address according to the network address and communication is established.
  • the addressing method of the WSN terminal of the present invention is as shown in FIG. 1 and includes the following steps:
  • each WSN terminal may have an identity.
  • the WSN terminal can be identified in a format similar to the International Mobile Equipment Identity (IMEI).
  • IMEI International Mobile Equipment Identity
  • the identity of the WSN terminal may be written by the WSN terminal equipment provider to the WSN terminal when the WSN terminal is produced.
  • the WSN gateway allocates a network address to the WSN terminal, and the network address is an IP address.
  • the network element entity on the telecommunication network side also stores the identifier of the WSN terminal.
  • the WSN service platform saves the service parameters of the WSN terminal, and configures the WSN, in addition to the identifier of the WSN terminal. Related parameters of the service performed by the terminal, enabling related services supported by the WSN terminal, and the like.
  • the WSN gateway sends the changed network address of the WSN terminal to the storage unit for storage.
  • the network element entity When a network element entity needs to establish communication with a WSN terminal, the network element entity provides the storage unit with the identifier of the WSN terminal, specifically: the network unit entity sends a request for addressing the WSN terminal to the storage unit, where the request includes the WSN terminal. Identification; save in storage unit The identifier of each WSN terminal that joins the WSN network and the corresponding network address, so that the storage unit searches for the network address of the corresponding WSN terminal according to the identifier of the WSN terminal in the request, and returns it to the network element entity.
  • Step 102 The network element entity finds the WSN terminal according to the network address of the WSN terminal. According to the network address of the WSN terminal, the network element entity can find and establish communication with the specific WSN terminal according to the IP communication protocol.
  • the present invention provides a combined network, including a telecommunication network and a WSN;
  • the telecommunication network includes a network element entity 10 and a storage unit 20; and the WSN includes a WSN terminal 30;
  • the WSN gateway 40 is further configured to: after the WSN terminal 30 joins the WSN, send the identifier of the WSN terminal 30 and the assigned network address to the storage unit 20 for storage; and send the identifier of the WSN terminal 30 to the network unit entity 10 for storage.
  • the network unit entity 10 is further configured to send a request to the storage unit 20 to address the WSN terminal 30, where the request includes the identifier of the WSN terminal 30;
  • the storage unit 20 is further configured to search for the network address of the corresponding WSN terminal 30 according to the identifier of the WSN terminal 30 in the request, and return to the network element entity 10.
  • the network element entity 10 may be a WSN management platform or a WSN service platform. Specifically, when the network element entity 10 is a WSN management platform, the WSN management platform searches the storage unit 20 for the WSN terminal 30 according to the identifier of the WSN terminal 30. The network address is found in the WSN terminal 30 based on the network address of the WSN terminal 30 and communication is established. When the network element entity 10 is the WSN service platform, when receiving the service request related to the WSN terminal 30, the WSN service platform searches the storage unit 20 for the network address of the WSN terminal 30 according to the identifier of the WSN terminal 30, and according to the WSN terminal. The network address of 30 finds the WSN terminal 30 and establishes communication.
  • FIG. 3 is a schematic diagram of a combined network according to an embodiment of the present invention, where the network element entity is a WSN service platform; and the storage unit is located in the WSN management platform.
  • the combined network and addressing flow of the present invention will now be described in conjunction with this embodiment.
  • Each WSN is a wireless network composed of a group of WSN terminals in a self-organizing manner.
  • Each WSN corresponds to a WSN gateway, and the WSN is internal (the so-called WSN internally refers to a WSN terminal in a WSN).
  • Inter-, or between the WSN terminal and the corresponding WSN gateway) communicates with the near-macro wireless communication technology.
  • the WSN is connected to the telecommunications network through the WSN gateway.
  • the WSN gateway accesses the core network of the telecommunication network through the access network, and then connects to the WSN management platform and the WSN service platform through the core network.
  • the WSN is based on the IEEE 802.15.4 technology.
  • the WSN gateway is the device responsible for connecting the WSN and the telecommunication network. It mainly performs functions such as protocol conversion, address mapping, data forwarding, and communication routing. It can also integrate functions such as security and accounting, WSN creation and management.
  • the functions that the WSN gateway can support include: Supporting WSN internal data coordination and aggregation; Supporting one or more of 2G mobile communication, 3G mobile communication, xDSL, FTTx, broadband wireless access, satellite/microwave and other long-distance communication joining methods, The aggregated data is transmitted to the communication peer; the device authentication and user authentication of the WSN gateway are supported by the WSN service platform and the remote management server; the parameters and software configuration of the WSN gateway are supported by the service platform and the remote management server; user authentication and service security are supported. , equipment management security mechanism; WSN creation and management.
  • the WSN gateway acts as the coordination point of the personal area network in the WSN, and is responsible for the establishment of the WSN; the WSN terminal can join the WSN as a routing node or a terminal node.
  • WSN gateways and WSN terminals need to support IEEE 802.15.4 communication technology.
  • WSN Gateway needs to select a network identifier (PAN ID) for the WSN when it creates the WSN.
  • PAN ID network identifier
  • the network identifier of the WSN may be specified by the WSN gateway or may be specified by the WSN management platform.
  • the WSN gateway or the WSN management platform determines the network identifier of the WSN, and the WSN management platform records the WSN information, including: the network identifier of the WSN, and the information of the WSN gateway that creates the WSN.
  • the information of the WSN gateway may include: an identifier of the WSN gateway, a network address of the WSN gateway in the telecommunication network, and the like.
  • the WSN gateway acts as a trust center for WSN security management.
  • the network configuration parameters for implementing secure communication are obtained from the WSN gateway (the WSN gateway authenticates the WSN terminal, and the information of the WSN terminal can be known at this time), and the WSN terminal uses the network configuration parameter to join the WSN and implement security. Communication.
  • the process of joining the WSN to the WSN can use the relevant specifications in the IEEE 802.15.4 technology, and details are not described herein.
  • the WSN gateway allocates a network address conforming to the IP address format for the WSN terminal; after the WSN terminal joins the WSN, the WSN gateway sends the information of the WSN terminal to the WSN management platform (here, the storage unit) for saving.
  • the information of the WSN terminal includes at least: an identifier of the WSN terminal and a network address of the WSN terminal, and may further include: a network identifier of the WSN where the WSN terminal is located, and a device capability parameter of the WSN terminal.
  • the WSN service platform is a functional entity that operates and manages the common services in the telecommunication network and the WSN in the telecommunication network. It 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.
  • the WSN service platform cooperates with other functional entities in the telecommunication network according to the needs of different services, such as AAA, Authentication Authorization and Accounting.
  • the business platform may also be connected to a remote server to update the business directly.
  • the WSN service platform configures relevant parameters of the service performed by the WSN terminal, enables related services supported by the WSN terminal, and the like, and saves information such as the identifier of the WSN terminal and the service parameters of the WSN terminal.
  • the WSN management platform is a functional entity that implements management of the WSN.
  • the WSN management platform can be composed of a management server that implements management functions for the WSN through the telecommunication network.
  • the WSN management platform (storage unit) holds the information of the WSN terminal, so that the network address of the WSN terminal can be queried according to the identity of the WSN terminal.
  • the network element entity may be a WSN management platform or a WSN service platform or other network device;
  • the WSN management platform When the network element entity is the WSN management platform, when the WSN management platform receives the service request of a certain WSN terminal, the WSN management platform sends a request for addressing the WSN terminal (the identifier of the WSN terminal), that is, the WSN management platform can be based on the WSN.
  • the identifier of the terminal queries the network address of the WSN terminal in the information of the WSN terminal saved by itself (storage unit), and then finds the WSN terminal according to the obtained network address of the WSN terminal, and establishes communication with the WSN terminal;
  • the WSN service platform When the network element entity is the WSN service platform, when the WSN service platform receives the service request of a certain WSN terminal, the WSN service platform sends a request for addressing the WSN terminal (the identifier of the WSN terminal) to the storage unit, and provides the identifier of the WSN terminal.
  • the WSN management platform can query the network address of the WSN terminal in the information of the WSN terminal saved by itself (storage unit) according to the identifier of the WSN terminal, and provide the network address of the WSN terminal to the WSN.
  • the service platform the service platform finds the corresponding WSN terminal according to the obtained network address of the WSN terminal.

Abstract

Description

无线传感器网络终端的寻址方法及结合网络 技术领域
本发明涉及结合网络技术, 尤其涉及一种无线传感器网络(WSN , Wireless Sensor Network )终端的寻址方法及结合网络。 背景技术
WSN作为计算、 通信和传感器三项技术相结合的产物, 是一种全新的 信息获取和处理技术。 由于近来微型制造技术、 通讯技术及电池技术的改 进, 促使微小的传感器终端可具有感应、 无线通讯及处理信息的能力。 此 类传感器终端不但能够感应及侦测环境的目标物及其改变, 并且可处理收 集到的数据, 并将处理过后的资料以无线传输的方式送到数据收集中心。 这些传感器终端通常由电源、 感知部件、 嵌入式处理器、 存储器、 通信部 件和执行软件这几部分构成。 其中, 电源为传感器节点提供正常工作所必 需的能源。 感知部件用于感知、 获取外界的信息, 并将其转换为数字信号。 嵌入式处理器负责协调节点各部分的工作, 如对感知部件获取的信息进行 必要的处理、 保存, 控制感知部件和电源的工作模式等。 通信部件负责与 其他传感器或观察者进行通信。 执行软件则为传感器终端提供必要的软件 支持, 如嵌入式操作系统、 嵌入式数据库系统等。 借助于传感器终端中内 置的形式多样的感知部件来测量该传感器终端所在周边环境中的热、 红外、 声纳、 雷达和地震波信号, 从而探测包括温度、 湿度、 噪声、 光强度、 压 力、 土壤成分、 移动物体的大小、 速度和方向等众多信息。 传感器终端一 般通过自组织或预配置的方式构成网络。 在通信方式上, 虽然可以釆用有 线、 无线、 红外和光等多种形式, 但一般认为短距离的无线低功率通信技 术最适合传感器网络的使用, 一般称作 WSN。 目前使用比较广泛的无线低 功率通信技术包括: 电气和电子工程师协会(IEEE, Institute of Electrical and Electronics Engineers ) 802.15.4和 ZigBee技术。
IEEE 802.15.4 是由 IEEE 开发的低速无线个域网 (WPAN, Wireless Personal Area Network )标准。 IEEE 802.15.4规定了物理层(PHY )和介质 访问控制层(MAC , Media Access Control )标准。 符合 IEEE 802.15.4标准 的通信模块具备低成本、 低耗电、 小尺寸的特点。
ZigBee联盟是一个致力于在开放的全球标准的基础上, 开发可靠的、 低成本、 低耗电、 无线网络连接的监测和控制产品的组织。 ZigBee标准的 物理层和 MAC层釆用 IEEE 802.15.4技术, 网络层、 安全管理、 应用层规 范以及互通性由 ZigBee联盟开发。 ZigBee标准中的 ZigBee智能能源公共 应用规范 ( ZigBee smart energy public applications profile )和 ZigBee家庭自 动化应用规范 ( ZigBee home automation public applications profile )分另 ll针 对商业环境应用和家庭应用。
互联网工程任务组 ( IETF, the Internet Engineering Task Force )制定了 在基于 IEEE 802.15.4标准的无线低速个域网上支持 IP通信的技术方案、即 6LowPan技术方案。在 6LowPan方案中,无线低速个域网的底层釆用 IEEE 802.15.4规定的 PHY层和 MAC层, 网络层釆用 IPv6协议; 由于 IPv6中, MAC支持的载荷长度远大于 6LowPan底层所能提供的载荷长度,为了实现 MAC层与网络层的无缝链接, 在网络层和 MAC层之间增加一个网络适配 层, 用来完成包头压缩、 分片与重组以及网状路由转发等工作。 根据该方 案,可以利用 IEEE 802.15.4链路支持基于 IP的通信的同时,遵守开放标准 以及保证与其他 IP设备的互操作性, 减少无线个域网与其它网络互联时的 复杂度。
WSN终端的微处理能力和无线通信能力使 WSN有广阔的应用前景, 其应用包括军事应用、 生物和环境监测、 健康应用、 家庭应用、 工业控制 和监测等。
另夕卜, 为了实现 WSN的安全, 可以对 WSN中的通信进行加密, WSN 中的加密运算釆用先进加密标准算法 ( AES , Advanced Encryption Standard ), 釆用的对称密钥长度为 128位。 WSN中使用的密钥主要包括: 主密钥 (Master key ), 该密钥是执行对称钥密钥建立协议过程中使用 的一个共享密钥。 主密钥是两个设备之间长期安全的基础, 并可用于生成 链接密钥。
链接密钥(Link key ),在一个 PAN网中,是两个设备之间共享的密钥, 用于两个设备之间的安全通信。
网络密钥 (Network key ), 该密钥为一个 PAN网络中共享的密钥, 用 于广播通信的安全。
为实现 WSN的安全和密钥的管理等, WSN中存在信任中心。 信任中 心是在网络中分配安全钥匙的一种信任设备, 它允许设备加入网络, 并分 配密钥, 因而确保设备之间端到端的安全性。 在釆用安全机制的网络中, 网络协调者可成为信任中心。 信任中心提供以下三种功能: 信任管理, 任 务是负责对加入网络的设备验证; 网络管理, 任务是负责获取和分配网络 钥匙给设备; 配置管理, 任务是对其管理的设备绑定应用程序, 在两设备 之间实现端到端的安全传输。
为了实现信任管理, 设备需要信任中心接收初始主密钥。
为了实现网络管理的目的, 设备应接收初始的网络密钥, 并且只能从 信任中心获得网络密钥的更新。
为实现网络配置, 设备需要从信任中心接收主密钥或链路密钥, 以建 立两个设备间的端对端的安全链路。
除了初始的主密钥, 附加的链路密钥、 主密钥、 网络密钥只能够釆用 安全的方式从信任中心获得。 信任中心应当根据某一策略周期性地更新网 络密钥, 并将新的网络密钥传送给每个设备。
WSN和电信网结合, 如第二代(2G, 2nd Generation )移动通信、 第三 代(3G, 3rd Generation )移动通信、各种类型数字用户线路( xDSL, x Digital Subscriber Line )、 光乡千接入 ( FTTx, Fiber To The x, x为 home、 buildings node, premises等)、 宽带无线接入、 卫星 /微波等, 可以使 WSN作为现有 网络的延伸, 扩展通信网络的能力, 使通信对象从人扩展到物理世界, 具 有良好的发展前景。 WSN与现有的电信网络结合后, 可以使 WSN感知的 数据有效地传递到数据中心, 通过对数据的整理和分析, 可以极大程度地 改变人类获取自然世界的数据的方式, 同时也能够对 WSN 进行集中的管 理, 解决目前分散在各处的 WSN难以管理的问题。
WSN与电信网络结合, 是指将 WSN与电信网络相连接, 利用电信网 络对 WSN及其提供的业务进行监控、 管理及完成业务的承载与合作实施, 并通过电信网络扩展 WSN 所提供的业务。 WSN 和电信网的结合一般是 WSN通过网关设备连接至电信网平台。
WSN终端为构成 WSN的传感器节点, 通过一跳或多跳与网关连接。 WSN终端负责釆集并上传数据, 以及接收并执行命令。 组成 WSN的设备 少则几个多则几百个, 设备间可根据需要以星形、 树形或网状(MESH )等 方式组网, 其中某些设备或具有较强的组网和数据转发能力。
WSN和电信网络结合时, WSN釆用 6LowPan技术方案支持 IP通信, 使 WSN和电信网络之间能够釆用 IP技术进行通信,可以减少在协议转换、 数据转发等方面的复杂度。因此 WSN支持 IP通信将是 WSN和电信网络结 合时的重要的技术方向。
WSN和电信网络结合后, 除了实现 WSN终端通过网关将有关数据上 报给电信网络侧相关的网络单元实体以外, 从 WSN终端管理的角度考虑, 在 WSN终端的软件需要升级或者 WSN终端内的参数需要更新等情况下, 需要电信网络侧相关的网络单元实体主动建立和 WSN终端的通信,建立通 信后, 执行 WSN终端的软件升级和参数更新等业务。 但 WSN终端处于 WSN内, 电信网络侧相关的网络单元实体不掌握 WSN终端的网络地址, 因此电信网络侧的网络单元实体不能直接和 WSN终端建立通信。 目前针对 该问题和需求, 还没有对应的技术方案。
因此,在 WSN和电信网络的结合时,需要考虑 WSN终端的寻址方法, 使电信网络侧的网络单元实体能够寻找到位于 WSN中的 WSN终端并建立 通信, 从而可以使电信网络侧的网络单元实体执行对 WSN 终端的管理功 能。 发明内容
有鉴于此,本发明的主要目的在于提供一种 WSN终端的寻址方法及结 合网络, 使电信网络侧的网络单元实体能够寻找到位于 WSN中的 WSN终 端并建立通信。
为了达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种 WSN终端的寻址方法, 该方法包括:
电信网络侧的网络单元实体从电信网络侧的存储单元获取 WSN 终端 的网络地址;所述网络单元实体根据所述 WSN终端的网络地址寻找到 WSN 终端。
进一步地, 所述存储单元至少存储 WSN终端的标识和对应的 WSN终 端的网络地址。
进一步地, 所述网络单元实体从存储单元获得 WSN终端的网络地址 , 具体为:
所述网络单元实体向所述存储单元提供 WSN终端的标识;
所述存储单元根据所述 WSN终端的标识查找对应的 WSN终端的网络 地址, 并返回给所述网络单元实体。 进一步地, 所述网络单元实体向存储单元提供 WSN终端的标识, 具体 为: 所述网络单元实体向存储单元发送寻址 WSN终端的请求, 所述请求中 包括 WSN终端的标识。
进一步地,所述网络单元实体向存储单元发送寻址 WSN终端的请求之 前, 该方法还包括:
WSN终端加入 WSN时, WSN网关为 WSN终端分配一个网络地址。 进一步地, WSN终端加入 WSN后, 该方法还包括: 所述 WSN网关 将 WSN终端的标识和分配的所述网络地址发送给所述存储单元进行保存; 所述 WSN网关将 WSN终端的标识发送给所述网络单元实体进行保存。
进一步地, 所述网络地址为 IP地址。
进一步地, 所述存储单元设置在 WSN管理平台中;
或者, 所述存储单元作为一个独立的设备设置在电信网络侧。
本发明还提供了一种结合网络, 包括电信网络和 WSN; 所述电信网络 包括网络单元实体和存储单元; 所述 WSN包括 WSN终端; 其中,
所述网络单元实体, 用于从存储单元获取 WSN终端的网络地址; 还用 于根据所述存储单元返回的 WSN终端的网络地址寻找到 WSN终端;
所述存储单元, 用于向所述网络单元实体提供 WSN终端的网络地址。 进一步地, 所述 WSN还包括 WSN网关, 用于在 WSN终端加入 WSN 时, 为 WSN终端分配一个网络地址; 所述网络地址为 IP地址。
进一步地,所述 WSN网关,还用于在 WSN终端加入 WSN后,将 WSN 终端的标识和分配的所述网络地址发送给所述存储单元进行保存; 将 WSN 进一步地, 所述网络单元实体, 还用于向所述存储单元发送寻址 WSN 终端的请求, 所述请求中包括 WSN终端的标识;
相应的, 所述存储单元, 还用于根据所述请求中的 WSN终端的标识查 找对应的 WSN终端的网络地址, 并返回给所述网络单元实体。 本发明的寻址方案中, 当 WSN终端加入到 WSN时, 由 WSN网关为 该 WSN终端分配一个符合 IP地址格式的网络地址;该 WSN终端的网络地 址保存在电信网络侧的存储单元;并且该存储单元中还保存了 WSN终端的 标识; 当电信网络侧的网络单元实体需要对某个 WSN 终端寻址时, 将该 WSN终端的标识提供给存储单元, 则存储单元可以直接查找到 WSN终端 的网络地址返回给网络单元实体, 如此根据该网络地址按照 IP通信协议就 可以寻找到 WSN终端并建立通信,实现电信网络侧的网络单元实体执行对 WSN终端的管理功能。 附图说明
图 1为本发明 WSN终端的寻址方法流程示意图;
图 2为本发明结合网络的结构示意图;
图 3为本发明结合网络一实施例的结构示意图。 具体实施方式
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 本发明中, WSN可以釆用 IETF组织制定的 6LowPan技术方案, 则 WSN内部的通信、 以及 WSN与电信网络的通信都可以釆用 IP技术进行通 信。 当 WSN终端加入到 WSN时, 由 WSN网关为该 WSN终端分配符合 IP地址格式的网络地址。 WSN终端的网络地址保存在电信网络侧的存储单 元; 电信网络侧的网络单元实体向存储单元获得 WSN终端的网络地址后 , 根据该网络地址按照 IP通信协议寻找到 WSN终端并建立通信。
本发明 WSN终端的寻址方法如图 1所示, 包括如下步骤:
步骤 101 , 电信网络侧的网络单元实体从电信网络侧的存储单元获取 WSN终端的网络地址。 网络单元实体可以是电信网络侧的 WSN业务平台、也可以是电信网络 侧的 WSN管理平台, 也可以是电信网络侧的其他设备。
本发明在电信网络侧设置一个存储单元,用于存储 WSN终端的标识和 网络地址等 WSN终端的信息。较佳地, 该存储单元可以位于电信网络侧的 WSN管理平台中;存储单元也可以作为一个独立的设备设置在电信网络侧。
为了标识 WSN终端, 每个 WSN终端可以具有一个标识。 对于 WSN 终端的识别, 可以釆用与国际移动设备身份码 ( IMEI, International Mobile Equipment Identity )类似的格式对 WSN终端进行标识。 WSN终端的标识 可以由 WSN终端设备提供商在生产 WSN终端时将 WSN终端的标识写进 WSN终端。
当 WSN终端加入到 WSN时,由 WSN网关为该 WSN终端分配一个网 络地址, 该网络地址为 IP地址。
WSN终端加入到 WSN后, WSN网关将该 WSN终端的信息发送给存 储单元进行保存, WSN终端的信息至少包括: WSN终端的标识、 和 WSN 终端的网络地址 , 还可以包括: WSN终端所在的 WSN的网络标识、 WSN 终端的设备能力参数等信息。
另外, WSN终端加入到 WSN后, 电信网络侧的网络单元实体也会保 存 WSN终端的标识, 例如、 WSN业务平台除了保存 WSN终端的标识外, 还保存 WSN终端的业务参数等信息, 并配置 WSN终端执行的业务的有关 参数, 启用 WSN终端支持的有关业务等。 当 WSN终端的网络地址发生变 动时, 由 WSN网关将变动后的 WSN终端的网络地址发送给存储单元进行 保存。
当一个网络单元实体需要和某个 WSN终端建立通信时,网络单元实体 向存储单元提供 WSN终端的标识, 具体的: 网络单元实体向存储单元发送 寻址 WSN终端的请求, 该请求中包括 WSN终端的标识; 存储单元中保存 了加入 WSN网络的每个 WSN终端的标识和对应的网络地址, 如此, 存储 单元根据请求中的 WSN终端的标识查找到对应的 WSN终端的网络地址, 并返回给网络单元实体。
步骤 102 , 网络单元实体根据 WSN终端的网络地址寻找到 WSN终端。 网络单元实体根据 WSN终端的网络地址, 按照 IP通信协议就可以查 找到具体的 WSN终端, 并与之建立通信。
为了实现上述寻址方法, 如图 2所示, 本发明提供了一种结合网络, 包括电信网络和 WSN;电信网络包括网络单元实体 10和存储单元 20; WSN 包括 WSN终端 30; 其中,
网络单元实体 10, 用于从存储单元获取 WSN终端 30的网络地址; 还 用于根据存储单元 20返回的 WSN终端 30的网络地址寻找到 WSN终端 30; 存储单元 20, 用于向网络单元实体 10提供 WSN终端 30的网络地址。
WSN还包括 WSN网关 40, 用于在 WSN终端 30加入 WSN时, 为 WSN终端 30分配一个网络地址; 分配的网络地址为 IP地址。
WSN网关 40, 还用于在 WSN终端 30加入 WSN后, 将 WSN终端 30 的标识和分配的网络地址发送给存储单元 20进行保存;将 WSN终端 30的 标识发送给网络单元实体 10进行保存。
网络单元实体 10, 还用于向存储单元 20发送寻址 WSN终端 30的请 求, 该请求中包括 WSN终端 30的标识;
相应的, 存储单元 20, 还用于根据所述请求中的 WSN终端 30的标识 查找对应的 WSN终端 30的网络地址, 并返回给网络单元实体 10。
网络单元实体 10可以是 WSN管理平台, 也可以是 WSN业务平台; 具体的, 当上述网络单元实体 10为 WSN管理平台时, WSN管理平台 根据 WSN终端 30的标识到存储单元 20中查找 WSN终端 30的网络地址, 并才艮据 WSN终端 30的网络地址寻找到 WSN终端 30并建立通信。 当上述网络单元实体 10为 WSN业务平台时, WSN业务平台接收到与 WSN终端 30有关的业务请求时, 根据 WSN终端 30的标识到存储单元 20 中查找 WSN终端 30的网络地址, 并根据 WSN终端 30的网络地址寻找到 WSN终端 30并建立通信。
图 3 所示为本发明一个具体实施例的结合网络示意图, 其中, 网络单 元实体为 WSN业务平台; 存储单元位于 WSN管理平台。 下面结合该实施 例来说明本发明的结合网络和寻址流程。
如图 3所示存在多个 WSN, 每个 WSN是由一组 WSN终端以自组织 方式组成的无线网络, 每个 WSN对应了一个 WSN网关, WSN内部 (所 谓 WSN内部指一个 WSN中的 WSN终端间、或者 WSN终端和对应的 WSN 网关间) 以近巨离无线通信技术进行通信。 WSN通过 WSN网关和电信网 络连接。 如图 3所示, WSN网关通过接入网接入到电信网络的核心网, 再 通过核心网连接到 WSN管理平台和 WSN业务平台。 本发明中, WSN是 基于 IEEE 802.15.4技术组建的。
WSN网关为负责连接 WSN和电信网络的设备, 主要完成协议转换、 地址映射、 数据转发、 通信路由等功能, 也可以集成安全和计费、 WSN的 创建和管理等功能。 WSN网关可以支持的功能包括: 支持 WSN内部数据 协同和汇聚; 支持以 2G移动通信、 3G移动通信、 xDSL、 FTTx、 宽带无线 加入、 卫星 /微波等远距离通信加入方式的一种或多种, 将汇聚的数据传输 到通信对端; 支持 WSN业务平台和远程管理服务器对 WSN网关的设备认 证和用户认证;支持业务平台和远程管理服务器对 WSN网关的参数和软件 配置; 支持用户认证、 业务安全、设备管理安全机制; WSN的创建和管理。
具体说明一下 WSN的创建: WSN网关作为 WSN中的个域网协调点, 负责 WSN的组建; WSN终端可以作为路由节点或者终端节点加入 WSN。 WSN网关和 WSN终端需要支持 IEEE 802.15.4通信技术。为了区分不同的 WSN, WSN网关创建 WSN时需要为该 WSN选择一个网络标识( PAN ID )。 WSN的网络标识可以由 WSN网关指定, 也可以由 WSN管理平台指定。
本发明中, WSN网关创建 WSN后, 由 WSN网关或者由 WSN管理平 台确定该 WSN的网络标识, WSN管理平台中记录该 WSN的信息, 包括: WSN的网络标识、 创建该 WSN的 WSN网关的信息; WSN网关的信息可 以包括: WSN 网关的标识、 WSN 网关在电信网络中的网络地址等。 本发 明中, 可以根据 WSN终端所在的 WSN的网络标识、 WSN网关的标识、 WSN 网关在电信网络中的网络地址、 WSN 网关与电信网络连接的接口信 息中的至少一个来确定出 WSN终端所在的 WSN。
另夕卜, WSN 网关还作为信任中心进行 WSN的安全管理。 一个 WSN 终端加入 WSN时, 从 WSN网关获得实现安全通信的网络配置参数(WSN 网关对 WSN终端进行认证, 此时可以获知 WSN终端的信息), WSN终端 使用网络配置参数加入到该 WSN并实现安全通信。 WSN终端加入 WSN 的过程可以釆用 IEEE 802.15.4技术中的有关规范, 本发明中不再赘述。
WSN终端加入 WSN时, WSN网关为该 WSN终端分配一个符合 IP地 址格式的网络地址; WSN终端加入 WSN后 , WSN网关将 WSN终端的信 息发送给 WSN管理平台 (此处为存储单元)进行保存, WSN终端的信息 至少包括: WSN终端的标识、和 WSN终端的网络地址,还可以包括: WSN 终端所在的 WSN的网络标识、 WSN终端的设备能力参数等信息。
WSN业务平台, 是电信网络中运行和管理电信网络及 WSN中共同业 务的功能实体, 负责整合各个服务提供商提供的业务, 并将其提供给终端 用户, 同时对用户使用业务的情况进行管理。 WSN业务平台会根据不同业 务的需要, 协同电信网络中其他功能实体, 例如认证授权计费 (AAA, Authentication Authorization and Accounting )月良务器冗成整个业务: 程。 业 务平台还可能与远程服务器连接, 直接对业务进行更新。 在 WSN终端加入 WSN后, WSN业务平台配置 WSN终端执行的业务的有关参数,启用 WSN 终端支持的有关业务等; 并保存 WSN终端的标识、 和 WSN终端的业务参 数等信息。
WSN管理平台, 是对 WSN实施管理的功能实体。 WSN管理平台可以 由管理服务器组成, 管理服务器通过电信网络对 WSN实施管理功能。 在该 实施例中, WSN管理平台 (存储单元 )保存有 WSN终端的信息, 因此可 以才艮据 WSN终端的标识查询到 WSN终端的网络地址。
本发明中, 网络单元实体可以是 WSN管理平台或 WSN业务平台或其 他网络设备; 其中:
在网络单元实体是 WSN管理平台时, 当 WSN管理平台接收到某个 WSN终端的业务请求时,向存储单元发送寻址 WSN终端的请求(携带 WSN 终端的标识)、 即 WSN管理平台可以根据 WSN终端的标识在自身 (存储 单元)保存的 WSN终端的信息中查询到 WSN终端的网络地址, 然后根据 获得的 WSN终端的网络地址寻找到该 WSN终端, 并和该 WSN终端建立 通信;
在网络单元实体是 WSN业务平台时, 当 WSN业务平台接收到某个 WSN终端的业务请求时,向存储单元发送寻址 WSN终端的请求(携带 WSN 终端的标识), 将该 WSN终端的标识提供给 WSN管理平台 (存储单元), WSN管理平台可以根据 WSN终端的标识在自身(存储单元)保存的 WSN 终端的信息中查询到 WSN终端的网络地址, 并将该 WSN终端的网络地址 提供给 WSN业务平台, 业务平台根据获得的 WSN终端的网络地址寻找到 对应的 WSN终端。
如此就实现了对 WSN终端的寻址。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种 WSN终端的寻址方法, 其特征在于, 该方法包括:
电信网络侧的网络单元实体从电信网络侧的存储单元获取无线传感器 网络( WSN )终端的网络地址; 所述网络单元实体根据所述 WSN终端的 网络地址寻找到 WSN终端。
2、 根据权利要求 1所述 WSN终端的寻址方法, 其特征在于, 所述存 储单元至少存储 WSN终端的标识和对应的 WSN终端的网络地址。
3、 根据权利要求 2所述 WSN终端的寻址方法, 其特征在于, 所述网 络单元实体从存储单元获得 WSN终端的网络地址, 具体为:
所述网络单元实体向所述存储单元提供 WSN终端的标识;
所述存储单元根据所述 WSN终端的标识查找对应的 WSN终端的网络 地址, 并返回给所述网络单元实体。
4、 根据权利要求 3所述 WSN终端的寻址方法, 其特征在于, 所述网 络单元实体向存储单元提供 WSN终端的标识, 具体为: 所述网络单元实体 向存储单元发送寻址 WSN终端的请求,所述请求中包括 WSN终端的标识。
5、 根据权利要求 4所述 WSN终端的寻址方法, 其特征在于, 所述网 络单元实体向存储单元发送寻址 WSN终端的请求之前, 该方法还包括:
WSN终端加入 WSN时, WSN网关为 WSN终端分配一个网络地址。
6、 根据权利要求 5所述 WSN终端的寻址方法, 其特征在于, WSN终 端加入 WSN后, 该方法还包括: 所述 WSN网关将 WSN终端的标识和分 配的所述网络地址发送给所述存储单元进行保存; 所述 WSN网关将 WSN
7、 根据权利要求 1至 6中任一项所述 WSN终端的寻址方法, 其特征 在于, 所述网络地址为 IP地址。
8、 根据权利要求 1至 6中任一项所述 WSN终端的寻址方法, 其特征 在于,
所述存储单元设置在 WSN管理平台中;
或者, 所述存储单元作为一个独立的设备设置在电信网络侧。
9、 一种结合网络, 其特征在于, 包括电信网络和 WSN; 所述电信网 络包括网络单元实体和存储单元; 所述 WSN包括 WSN终端; 其中,
所述网络单元实体, 用于从存储单元获取 WSN终端的网络地址; 还用 于根据所述存储单元返回的 WSN终端的网络地址寻找到 WSN终端;
所述存储单元, 用于向所述网络单元实体提供 WSN终端的网络地址。
10、 根据权利要求 9所述结合网络, 其特征在于, 所述 WSN还包括 WSN网关, 用于在 WSN终端加入 WSN时, 为 WSN终端分配一个网络地 址; 所述网络地址为 IP地址。
11、 根据权利要求 10所述结合网络, 其特征在于, 所述 WSN网关, 还用于在 WSN终端加入 WSN后, 将 WSN终端的标识和分配的所述网络 地址发送给所述存储单元进行保存;将 WSN终端的标识发送给所述网络单 元实体进行保存。
12、 根据权利要求 11所述结合网络, 其特征在于,
所述网络单元实体, 还用于向所述存储单元发送寻址 WSN 终端的请 求, 所述请求中包括 WSN终端的标识;
相应的, 所述存储单元, 还用于根据所述请求中的 WSN终端的标识查 找对应的 WSN终端的网络地址, 并返回给所述网络单元实体。
PCT/CN2010/080330 2010-10-19 2010-12-27 无线传感器网络终端的寻址方法及结合网络 WO2012051775A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442556A (zh) * 2008-12-25 2009-05-27 北京交通大学 一种基于IPv6的无线传感器网络服务器系统
CN101488975A (zh) * 2009-01-13 2009-07-22 王晓喃 实现无线传感器网络与IPv6网络全IP通信的系统
US20100082789A1 (en) * 2007-09-28 2010-04-01 Samsung Electronics Co., Ltd. Ip address assignment method and apparatus for providing ip service in a zigbee network system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101588619B (zh) * 2009-06-15 2010-11-03 常熟理工学院 下一代全ip无线传感器网络路由实现系统和服务方法
CN102300206B (zh) * 2010-06-22 2016-06-15 中兴通讯股份有限公司 无线传感器网络终端的寻址方法及结合网络

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100082789A1 (en) * 2007-09-28 2010-04-01 Samsung Electronics Co., Ltd. Ip address assignment method and apparatus for providing ip service in a zigbee network system
CN101442556A (zh) * 2008-12-25 2009-05-27 北京交通大学 一种基于IPv6的无线传感器网络服务器系统
CN101488975A (zh) * 2009-01-13 2009-07-22 王晓喃 实现无线传感器网络与IPv6网络全IP通信的系统

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