CN1881917A - Household network wireless netting and communication method - Google Patents

Household network wireless netting and communication method Download PDF

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CN1881917A
CN1881917A CN 200510076984 CN200510076984A CN1881917A CN 1881917 A CN1881917 A CN 1881917A CN 200510076984 CN200510076984 CN 200510076984 CN 200510076984 A CN200510076984 A CN 200510076984A CN 1881917 A CN1881917 A CN 1881917A
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network
device
data
central node
frame
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CN 200510076984
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CN100512174C (en
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喻子达
李莉
高明新
张俐
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海尔集团公司
青岛海尔科技有限公司
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Abstract

The invention relates to a method of family network wireless combination and communication, wherein said family network comprises several nodes; and the method comprises: the central node builds and starts the new network; the sub node is added into the started new network; the nodes process communication; said new network comprises; the central node processes energy detecting scanning, to record the energy conditions of each channel; the central node processes active scanning on each channel, to check the network activity of each channel, and store the network condition; based on the result of scanning channel, selecting the working channel of new network; said central node selects network mark for the new network, to generate short address; the central node starts the new network, sends signal mark and allows the sub node to be added into the new network; and deleting the sub node from network. the invention can realize communication between different wireless devices to build and manage the family wireless network.

Description

一种家庭网络无线组网和通讯的方法 A method of home network wireless networking and communications

技术领域 FIELD

本发明涉及家庭网络的维护技术,特别是涉及一种家庭网络无线组网和通讯的方法。 The present invention relates to a maintenance technician home network, and more particularly to a method for a home network wireless networking and communications.

背景技术 Background technique

家庭网络是在家庭范围内,实现信息设备、通讯设备、娱乐设备、家用电器、自动化设备、保安(监控)装置等设备互联,资源共享的一种网络。 Home networking is within the family, for device interconnection information equipment, communications equipment, entertainment equipment, household appliances, automation equipment, security (monitoring) devices, network resource sharing. 家庭网络主要由家庭控制子网和高速家庭主网组成。 Home network consists of home control sub-network and high-speed-home network components. 家庭控制子网通过电话或互联网等方式实现家庭网络的远程控制并通过以太网实现与高速家庭主网的连接。 Home control sub-network through telephone or internet to remotely control the home network and to achieve connection with a high-speed home the main network via Ethernet. 家庭控制子网要求有一定的扩展性以适应未来新电器设备的加入。 Home control sub-network requires a certain degree of scalability to accommodate the addition of future new electrical equipment.

家庭无线控制网络(WHCN,Wireless Home Control Network)是一种低数据率的无线个人域网络,也是一种简单的、低成本的无线通信网络,这种网络支持低功率和允许要求灵活的应用的无线联接。 Wireless home control network (WHCN, Wireless Home Control Network) is a wireless personal area network of a low data rate, but also a simple, low-cost wireless communications networks that support low power and permit requirements flexible applications wireless connection. WHCN的主要目标是在家电、传感器和监视器之间,实现易安装、可靠数据传输、短距离工作、低成本和低功耗的无线网络。 The main objective WHCN is between appliances, sensors and monitors, to achieve easy to install, reliable data transmission, short working distance, low cost and low power wireless network. 同时,支持简单和灵活的网络拓扑。 At the same time, support for simple and flexible network topology.

无线网络支持无线通讯的功能,支持家庭控制子网设备之间的数据通信、实时传输数据信息、人机交互式操作和具有图形用户界面控制功能,使用户方便直观地操作和控制各个设备。 Wireless networks support wireless communication, supporting the home control data communication between the sub-devices, real-time transmission of data information, the man-machine interactive operation, and graphical user interface controls with the user easy and intuitive to operate and control the respective devices.

在构建家庭无线控制网络时,存在的问题是:为了使得不同生产厂家的无线设备能够相互通讯,需要发展一个统一的组网和通讯标准;以合理的价格和较低复杂性来向家庭消费者引入新的产品和服务;支持无线网络连接标准;降低用户对家庭设备网络的控制、操作模式的冗余性。 When building a home wireless control network, there is a problem: in order to make different manufacturers of wireless devices to communicate with each other, the need to develop a unified networking and communications standards; at reasonable prices and lower complexity for consumers to families introduction of new products and services; support Wi-Fi standards; reduce redundancy of user control of home devices in the network, the operation mode.

发明内容 SUMMARY

本发明解决的技术问题在于提供一种家庭网络无线组网和通讯的方法。 The invention solves the technical problem is to provide a home network wireless networking and communication methods. 可以使得不同生产厂家的无线设备按照统一的标准相互通讯。 May be such that different manufacturers of wireless equipment in accordance with a uniform standard communication with each other.

为此,本发明解决技术问题的技术方案是:提供一种家庭网络无线组网和通讯的方法,所述家庭网络包括多个节点;包括步骤: To this end, the present invention is to solve the technical solution Problem: to provide a home network and a wireless communication network, said home network comprising a plurality of nodes; comprising the steps of:

1)中心节点建立和启动新的网络;2)子节点添加到该中心节点启动的新网络中;3)节点之间进行通讯;其中,所述步骤1)包括:11)所述中心节点进行能量检测扫描,通过扫描记录各信道能量情况;12)所述中心节点对各信道进行主动扫描,检查各信道网络活动情况,对各信道存在网络情况进行记录;13)根据扫描信道的结果,选定新网络的工作信道;14)所述中心节点为该新网络选择网络标识符,产生短地址;15)所述中心节点启动该新的网络,发出信标。 1) the central node establishes and starts a new network; Add 2) a child node to the central node initiated the new network; communication 3) between nodes; wherein said step a) includes: 11) the central node energy detection scan, by scanning the recording of each channel energy situation; 12) the central node for each channel active scanning, check the channel network activities, there is a network where the recording of the respective channels; 13) according to the result of the scanning of channels, is selected from given the new network operating channel; 14) the central node of the new network selection network identifier, generating a short address for; 15) the central node starts the new network, sends out a beacon.

优选地,所述步骤2)包括:21)用户输入子节点标识符,将子节点注册到中心节点上;22)子节点在信道上监听,查找活动的网络;23)当子节点找到网络时,子节点将停留在该信道上向中心节点发出注册请求;24)中心节点接收并验证所述注册请求;如果通过验证,中心节点向子节点发送允许加入网络命令;25)子节点接收到加入网络命令后加入网络,并向中心节点发送加入网络信息;26)中心节点接收到子节点应答,将该节点注册成网络的成员。 Preferably, said step 2) includes: 21) a user input sub-node identifier to register child nodes to the central node; 22) sub-node channel monitoring, lookup network activities; 23) when the child node of a network is found child node will stay in the channel issued the registration request to the central node; 24) the central node receives and verifies the registration request; If verified, the central node transmits to the child node allowed to join the network command; 25) child node receives the participation after the network commands added to the network, and transmits added network information Center node; 26) central node receives the child node response, the node registered as members of the network.

优选地,所述步骤26)中,如果中心节点接收正确的响应失败或者接收响应超时,子节点返回步骤22),以便重复开始进入下一个信道;如果子节点扫描所有信道仍不能得到注册,将进入下一轮循环。 Preferably, in the step 26), if the central node receives a correct response to a failure or receiving response timeout, a child node returns to the step 22), to repeat the start into the next channel; If the child node scans all channels still can not be registered, the enter the next cycle.

优选地,还包括从网络中删除子节点:41)中心节点发送删除命令给要删除的子节点;42)子节点接收命令并对命令进行校验;43)如果校验通过,子节点将从网络中删除自己,通过内部复位清除所有内部变量为加入另一网络做准备;44)中心节点将该子节点相应的设备从设备列表和网络中删除;其中,中心节点删除子节点可以要求子节点的删除确认,也可以不要求子节点的删除确认。 Preferably, further comprising deleting child nodes from the network: 41) central node sends a delete command to the child node to be deleted; 42) the child node receives a command and the command checksum; 43) if the check passes, the child node from network remove themselves, by the internal reset all internal variables in preparation for the addition of another network; 44) central node the child node corresponding device is deleted from the list of devices and networks; wherein, the central node deletes the child node may request a child node the delete confirmation may not be required to delete confirmed child nodes.

优选地,还包括从网络中删除子节点:51)子节点发送删除请求命令给中心节点,希望从网络中被删除;52)中心节点校验该删除请求命令;53)如果校验通过,中心节点将该子节点从网络中删除。 Preferably, further comprising deleting child nodes from the network: 51) child node sends a delete request command to the central node, desired to be deleted from the network; 52) central node verifies the delete request command; 53) If the verification by the central node of the child node removed from the network.

54)子节点将自己从网络中删除,通过内部复位清除所有内部变量为加入另一网络做准备;其中,子节点自我删除可以要求中心节点的删除确认,也可以不要求中心节点的删除确认。 54) subnode remove themselves from the network, through the internal reset all internal variables in preparation for the addition of another network; wherein the child node delete itself may request a delete confirmation central node, it may not be required to delete confirmation center node.

优选地,家庭网络中工作信道的选择和建立包括:61)在扫描过程中,中心节点逐个扫描家庭网络中的每个信道;62)在每个信道上,中心节点的接收端测量接收信号的功率值;63)如果中心节点接收到的测量值高于允许的阈值,报告该信道处于工作状态;64)如果接收到的测量值低于设定的阈值,报告该信道处于闲置状态;65)扫描完毕,中心节点选择一个闲置的信道作为初始工作信道;优选地,家庭网络中工作信道的选择和建立还包括:71)收发器或中心节点将选择信道的信息发送给别的收发器;72)中心节点发送信道选择命令并且要求收发器工作在选定的信道;73)当信道正常通信时,如果接收信号的功率值较小,中心节点可以给别的接收器发送命令并且要求改变当前信道。 Preferably, the selection and establishment of working channels in the home network comprises: 61) during scanning, the central node individual scans the home network of each channel; 62) measure the received signal at the receiving end of each channel, the central node power value; 63) if the central node receives the measured value is higher than the allowed threshold, the report of the channel in the working state; 64) if the received measurement is below a set threshold, the report of the channel is idle; 65) scan is completed, the central node selects an idle channel as the initial working channel; preferably, the selection and establishment of working channels in the home network further comprises: 71) transceiver, or the central node selection information channel to the other transceiver; 72 ) central node sends a channel selection command and claims the transceiver operates in the selected channel; 73) when the channel is normal communication, if the power of the received signal is small, the central node can send commands to other receivers and requires to change the current channel .

优选地,所述步骤3)的通讯包括数据从设备传输到中心节点:设备首先监听网络信标;发现信标后,设备与中心节点信标信号同步;当信道闲置时,设备发射数据帧到中心节点;中心节点发射可选的应答帧表明成功接收数据;数据传输完成。 Preferably, the step 3) correspond include data from the device to the central node: device first listening network beacons; after discovery beacon, the device and the central node beacon signal synchronization; When the channel is idle, the device transmits the data frame to central node; central node to transmit an optional acknowledgment frame indicating a successful reception data; data transfer is complete.

优选地,所述步骤3)的通讯包括数据从中心节点传输到设备:在启动信标的网络中,当中心节点发送数据到设备时,信标表明数据正在等待;设备周期性的监听网络信标;当设备探测到信息正在中心节点等待,就发射要求数据的命令;中心节点发射应答帧表明成功接收数据要求;等待的数据通过信道被发送;设备发射应答帧表明成功接收数据;传输过程完成。 Preferably, the step 3) correspond include data from the central node transmitted to the device: starting a beacon enabled network, when transmitting data center node to the apparatus, the beacon indicates that data is waiting; device periodically listening network beacons ; when the device detects that the information is waiting for the central node, to transmit command data request; central node transmits a response frame indicates a successful reception data requirements; wait for data to be transmitted over the channel; device transmits a response frame indicates a successful reception of data; transmission process is completed.

优选地,所述步骤3)的通讯包括数据从中心节点传输到设备:设备即使没有接收到信标帧,也向中心节点发送数据要求命令;如果中心节点发射应答帧或者数据等待命令表明成功接收数据要求并且有数据在等待,等待的数据通过信道被发送到设备;设备发射应答帧表明成功接收数据;传输过程完成;如果没有数据等待,中心节点向设备发送0字节的数据帧。 Preferably, the step 3) communication comprises a data center node transmitted from the device: the device even without receiving the beacon frame, but also request command transmitting data center node to; if the central node transmits a response frame or data waiting for a command indicating a successful reception data requirements and data waiting, waiting for data to be transmitted to the device through the channel; device transmits a response frame indicates a successful reception of data; transmission is complete; if no data is waiting, the central node transmits 0-byte data frame to the device.

优选地,所述步骤3)的通讯包括数据从设备传输到设备:当一个设备向另一个设备要求数据时,设备向期望的设备发射要求数据的命令;期望的设备发射应答帧表示数据要求成功的接收;如果数据正在等待,期望的设备就会发射数据帧;如果没有数据在等待,源设备发射0长度负荷的数据帧,表明没有数据等待。 Preferably, the step 3) correspond include data from the device to the apparatus: When a device requires the data to another device, the device command requires the transmission of data to a desired device; desired device transmitting the response frame data representing the requirements for successful receiving; if data is waiting, the desired equipment will transmit a data frame; If no data is waiting, the source device transmits a zero-length payload of data is a frame indicating that no data is waiting. 要求数据的设备发射应答帧表示数据帧的成功接收;传输过程结束;当一个设备向另一个设备传输数据时,设备让数据等待准备联接,并且向期望的目标设备发射数据等待的命令;目标设备发射应答帧表示数据等待信号的成功接收;当源设备接收到目标设备的应答帧,源设备向目标设备发送数据帧;目标设备发射应答帧表示数据的成功接收。 Requires device data transmission acknowledgment frame indicating successful reception of the data frame; end of a transmission; when one device transmit data to another device, the device allows data wait ready coupled, and the pending command to the desired target device transmits data; target device transmitting the response frame data indicating successful reception wait signal; when the source device receives a target device response frame, the source device transmits to the target device data frame; target device transmits a response frame indicating successful reception of data.

优选地,物理层帧通用数据单元数据包中包括物理层头域和物理层负荷域;物理层头域保证接收设备同步和锁定比特流;物理层负荷域包含长度可变媒介访问控制层通用数据帧;物理层头域包括训练序列域和帧分界域两部分。 Preferably, the physical layer frame generic data unit packet includes a physical layer header and a physical layer load region; physical layer header fields ensure that the receiving device synchronization and locking bitstream; physical layer load domain comprises a universal variable length data medium access control layer a frame; physical layer header field comprises two portions of the training sequence field and the frame boundary domain.

优选地,在家庭网络中,信道工作方式基于以下三个方面:使用挂起信道估计估测工作环境;使用CSMA/CA算法估测每个信道数据传输的状态;基于信道质量估测程序,无线子网中的收发器选择理想的工作信道。 Preferably, in the home network, the channel mode of operation is based on three aspects: use the suspend channel estimation estimates the work environment; use state CSMA / CA algorithm estimates for each channel for data transmission; based on channel quality estimation program, a wireless transceiver select the desired operating channel subnet.

优选地,媒介访问控制层帧包括:媒介访问控制层头域,包括帧控制、序列数和地址信息;媒介访问控制层负荷域,序列长度可变,不同的媒介访问控制层帧类型含不同的信息;媒介访问控制层尾域,包括帧校验序列;其中,如果帧控制域中安全使能置位,负荷域受到安全组件的保护。 Preferably, the medium access control layer frame comprising: a media access control layer header fields, including a frame control, sequence number and the address information; variable medium access control layer load region, sequence length, different media access control layer frame type containing different information; medium access control layer tail domain, including the frame check sequence; wherein, if the frame control secure domain enable bit is set, load range by the security component protection.

优选地,媒介访问控制层帧分为信标帧、应答帧、命令帧和数据帧;其中,命令帧格式的媒介访问控制层头域包括帧控制、家庭网络目标标识和地址、家庭网络源标识和地址;如果帧控制域中的安全使能设置为0,命令负荷域还包括媒介访问控制层指令;如果帧控制域中的安全使能设置为1,根据选择的安全组件,设备对命令负荷域进行处理,以决定媒介访问控制层指令;数据帧的帧控制域中具有相应的帧类型取值,适当设定数据帧格式中别的域;如果帧控制域中的安全使能设置为0,数据负荷域应该包括传递给上层的字节序列;如果帧控制域中的安全使能设置为1,根据选择的安全组件,设备对数据负荷域进行处理,以决定传递给上层的字节序列。 Preferably, the medium access control layer frame is divided into a beacon frame, a response frame, a command frame and a data frame; wherein the command frame format of a medium access control layer header includes a frame control, the home network destination identifier and the address, the home network Source Identification and address; if the safe use of the frame control field can be set to 0, the command load region further comprises a media access control layer instruction; if the frame control security-enabled domain can be set to 1, according to the selection of a security component, device command load domain processing to determine the media access control layer instruction; data frame is a frame control field having a corresponding frame type values, appropriately setting the data frame format of other fields; if security frame control field enable is set to 0 the data load range should include transfer to a byte sequence an upper layer; if security frame control field is enabled is set to 1, process data load region according to the selection of a security component, equipment, to determine the transfer to the byte sequence an upper layer .

优选地,网络层获得应用层数据包单元并且产生网络层数据包单元;网络层采用分帧技术将数据分成多个数据包单元传递给媒介访问控制层;网络层负责在源节点和目标节点之间建立其所使用的路由;网络层定义路由地址结构,使本地家庭网络上的节点可以建立通讯。 Preferably, the network layer to obtain an application layer packet unit and generates a network layer packet unit; the network layer using framing technique divides the data into a plurality of packet units transmitted to the media access control layer; the network layer is responsible for the source node and the destination node of the inter-establish the route they use; the network layer defines the routing address structure, the nodes on the local home network can establish communications.

优选地,家庭网络中两个模块间进行数据交流时,发送模块网络层调用网络层数据发送基元;当发送端的网络层发送完要求命令,媒介访问控制层/物理层产生确信信息并且返回给网络层;当接收端得到数据,接收端的媒介访问控制层/物理层向其网络层汇报指示。 Preferably, when the home network for data exchange between two modules, the sending module network layer invoking the network layer data transmission primitive; When the transmission side of the network layer of sending the request command, layer / physical layer media access control generates believes that the information and return to the network layer; when the receiving end of data, the receiving side medium access control layer / physical layer indicates to report to the network layer.

优选地,网络层向应用层汇报:无线信道联接质量指示;网络拓扑联接;质量信息。 Preferably, the network layer to the application report layers: a radio channel connection quality indicator; topology coupled; quality information.

优选地,通信和应用层帧的格式化在应用层和网络层之间进行;使用者或设备可发送命令控制相连接模块的运作,包括:启动/关闭模块运作、设置模块操作频道、请求模块扫描所有运作频道并可在一个可用频道中工作。 Formatting Preferably, the communication and application layer frames between the application layer and the network layer; user or device may send commands to control the operation of the phase connection module, comprising: a startup / shutdown module operation, the setting module the operation channel request module scan all operational channels and can operate in one of the available channels.

优选地,设备和家庭网络相连方式包括:设备直接申请和家庭网络连接;网关注册确认相连接的设备;如果网关发现有设备未被注册,网关发送询问去查询未注册设备;设备和网络信息在网关,移动控制中心和设备之间的交换包括:申请下载设备文件,网关询问和设备连接的模块报道的设备信息;上载设备文件,设备给网关传递设备信息;申请下载设备注册表,移动控制中心要求网关提供连接信息;上载设备注册表,网关给移动控制中心发送连接信息;设备从家庭网络断开方式包括:设备询问与家庭网络断开;网关询问设备与家庭网络断开。 Preferably, the device and a home network connected mode comprising: a device directly applications and home network connection; Gateway Registration Acknowledgment connected devices; if the gateway is found the device is not registered, the gateway sends an inquiry to inquire the unregistered device; device and network information exchange between the gateway, the mobile control center and the apparatus comprising: application download device file, the device information module gateway queries and attached reports; upload device file device to the gateway transmitting device information; application download device registry, a mobile control center requires the gateway to provide connection information; upload device registry, the gateway to the mobile control center transmits the connection information; device is disconnected from the home network include: device query to the home network is disconnected; gateway interrogation device to the home network is disconnected.

相对于现有技术,本发明的有益效果是:由于本发明针对家庭无线控制网络的组网和通讯方法提供统一的流程,使得不同生产厂家的无线设备能够相互连接和通讯,适用于家庭无线网络的构建和管理。 With respect to the prior art, the beneficial effects of the invention are: Since the present invention provides a unified process for networking and communication method of a wireless control network home, so that different manufacturers of wireless devices can connect and communicate with each other for a home wireless network construction and management. 并且可以以合理的价格和较低复杂性来向家庭消费者引入新的产品和服务。 And we can introduce new products and services to home consumers at reasonable prices and lower complexity.

本发明的优点还在于:降低用户对家庭设备网络的控制、操作模式的冗余性。 Advantage of the invention is further characterized by: reducing the redundancy of user control of home devices of a network, mode of operation.

附图说明 BRIEF DESCRIPTION

图1是家庭无线控制网络的结构图;图2是家庭无线控制网络的星状拓扑结构图;图3是家庭无线控制网络的对等拓扑结构图;图4是本发明的方法中WHCN网络建立和启动的流程图;图5是本发明的方法中子节点添加到网络的流程图;图6是本发明的方法中中心节点发起从网络中删除一个子节点的流程图;图7是本发明的方法中子节点发起从网络中删除一个子节点的流程图;图8是本发明的方法中工作信道选择和建立的流程图;图9是无线家庭控制子网通信协议体系结构示意图;图10是数据从设备传输到中心节点的机制示意图;图11是数据从中心节点传输到设备的机制示意图;图12和图13是对等网络中数据从设备传输到设备的机制示意图;图14是WHCN中两个模块间数据的传输流程图;图15是网络层对来自应用层的数据的分帧示意图;图16是网络层的子帧组合的示意图; FIG 1 is a configuration diagram of a wireless control network family; FIG. 2 is a star topology diagram of a wireless control network family; FIG. 3 is a topology diagram of wireless control network such as a home; FIG. 4 is WHCN network setup method of the present invention and flow initiated; FIG. 5 is a method of adding the child nodes of the present invention to the flowchart of a network; FIG. 6 is a flowchart of deleting a child node from the network, the method according to the present invention, the central node initiated; FIG. 7 is the present invention the method of neutron node initiates a flowchart of a child node removed from the network; FIG. 8 is a method of the present invention, the working channel selection and establishment of a flowchart; FIG. 9 is a schematic structural diagram of a wireless home control sub-network communication protocol system; FIG. 10 It is a schematic view of data from the device to the central node of the mechanism; FIG. 11 is a schematic view of the mechanism device data transmitted from the central node; FIG. 12 and FIG. 13 is the data like a network diagram mechanism from the device to device; FIG. 14 is WHCN between the two modules for transmitting data flowchart; FIG. 15 is a network layer framing a schematic view of the data from the application layer; FIG. 16 is a schematic view of a sub-network layer frame combination; 图17是信息在应用层和网络层之间的交换流程图。 FIG 17 is exchanged flowchart of information between the application layer and the network layer.

具体实施方式 Detailed ways

请参阅图1,家庭无线控制网络包括家庭控制子网网关110、移动控制终端120和多个无线通讯模块130。 Refer to Figure 1, wireless home control network, including home control sub-network gateways 110, mobile control terminal 120 and a plurality of wireless communication module 130.

家庭控制子网网关110是家庭无线控制网络的中心。 Home control sub-network gateway 110 is a central wireless control network family. 用于充当家庭无线控制网络的信息和控制中心;并且作为家庭无线控制网络和外界信息网络(如:以太网、电话系统等等,图未示)之间的接口或信息交换中心,以及家庭信息网络和家庭无线控制网络之间的联合点。 To act as wireless home control network information and control centers; and a wireless home control network and the outside world information networks: interface or the exchange of information between the center (e.g., Ethernet, telephone systems, etc., not shown), and home information joint point between the network and the home wireless control network.

移动控制终端120在WHCN中是一个专用和简单的显示器和控制终端。 Movement control terminal 120 is a specific and simple displays and control terminals WHCN in. 用户可以通过移动控制终端120获得各种服务的平台;移动控制终端120可以与家庭控制子网网关110相互通讯,实现所有家庭控制子网设备140的集中控制;在紧急情况下,移动控制终端120可以和各个节点直接通讯。 The user can control the mobile terminal 120 to obtain various services platform; movement control terminal 120 may be 110 each communicate with the home control sub-network gateway, the realization of all the home control sub apparatus centralized control 140; in case of emergency, the mobile control terminal 120 can and individual nodes communicate directly.

移动控制终端120可以接收网络设备140的数据和状态并且借助子网网关110给每个设备发送控制命令。 Movement control terminal 120 may receive a network device and a state 140 and by means of the subnet gateway 110 sends a control command to each device.

无线通讯模块130是家庭控制子网设备的通讯核心,通讯模块是各个家庭控制子网设备和无线网络的无线通讯接口单元。 Wireless communication module 130 is a home control sub-device communications core, communication modules are each home control sub-network equipment and wireless network wireless communication interface unit.

在家庭无线控制子网中,无线通讯模块130是基本单元。 Home Wireless control subnet, wireless communication module 130 is the basic unit. 在家庭控制子网网关110和移动控制终端120中,无线通讯模块是部分功能模块。 In the home control sub-network gateway 110 and the mobile control terminal 120, the wireless communication module is a part of the function modules. 一般来说,子网网关110中的无线通讯模块,叫做无线通讯中心节点模块,发挥协调器的作用。 In general, the subnet gateway 110 wireless communication module, called Wireless Communication Center node module, to play the role of coordinator.

请参阅图2和图3,是家庭无线控制网络的拓扑结构图。 See Figures 2 and 3, it is a topology diagram of a wireless control network family.

为满足实际应用的要求,WHCN有多种拓扑:例如,星状拓扑(图2参照)或对等拓扑(图3参照)。 To meet the requirements of practical applications, WHCN a variety of topologies: e.g., like a star topology (see FIG. 2) or to topology (see FIG. 3). 在网络拓扑中,节点必须有独一无二的地址。 In the network topology, the node must have a unique address. 节点又可分为全功能节点221和简化功能节点222。 The node can be divided into full-function node 221, and a simplified functional node 222.

参阅图2,采用星状拓扑时,网络中存在一个中心节点210和若干子节点220,其它设备直接和中心节点210联接,通信建立在中心节点210和设备之间。 When refer to FIG. 2, uses a star topology, the network comprises a central node 210 and several child nodes 220, other device directly and the central node 210 is coupled, the communication is established between the central node 210 and the devices. WHCN中心节点210也叫中心控制器。 WHCN central node 210, also known as the central controller. 设备的典型应用是作为网络通讯的起始节点或者终止节点,通过中心节点实现设备之间的通信。 Typical applications are used as the starting node of a network communication or a terminating node, the communication between devices is achieved by the central node.

WHCN中心节点210的具体应用是能够初始、终止或者路由网络中的通信。 Particular application WHCN central node 210 is able to initially terminate or routing network communication. WHCN中心节点210是WHCN的主要控制中心。 WHCN central node 210 is a master control center WHCN of.

全功能收发器第一次启动后,就建立自己的网络,成为WHCN中心节点210,所有的星状网络都独立于正在工作的其它星状网络。 After the full-featured transceiver is first started, they build their own network, a WHCN central node 210, all of the star network independent of the other star network is working. 在射频通信范围内,通过选择没有被别的网络使用的WHCN标识,就可以建立一个新的网络。 Within radio communication range, by selecting WHCN ID is not used by another network, you can create a new network. 一旦WHCN标识被选定,WHCN中心节点允许别的设备加入网络。 Once WHCN flag is selected, WHCN central node to allow other devices to join the network.

如前所述,中心节点210是星状拓扑网络的中心点。 As described above, the central node 210 is the center point of a star topology network. 一般情况下,子网网关的无线模块是中心节点。 In general, the wireless module subnet gateway is the central point.

在无线网络中,中心节点210遵循家庭控制子网通信协议,可以与家庭控制子网设备通过无线的方式进行数据交换。 In wireless networks, the central node 210 to follow the home control sub-network communication protocol, and the home control sub-apparatus data exchange via a wireless manner. 中心节点一般是有足够存储空间的专用节点。 The central node is typically a dedicated node enough storage space.

中心节点210通过子网网关获得用户的查询/控制命令。 The central node 210 to obtain the user's query by subnet gateway / control commands. 中心节点210传输关于WHCN的这些查询和控制命令并传送到预期的节点,所述预期的节点与被控设备连接。 Transmitting center node 210 of these queries and control commands and transmitted to the intended node, the intended node WHCN the controlled device is connected.

中心节点210也从被控制设备接收信息,并判断接收到的数据的正确性和有效性,如正确,则得到控制命令和有效数据信息。 The central node 210 is also from the control device receives the information and determines the accuracy and validity of the received data, as correct, give a control command and valid data information. 中心节点210可以决定向控制网络报告信息或转寄信息给与被控制设备相连接的其他无线节点。 The central node 210 may determine other wireless nodes to the control network report information or forwarding the information given by the control device is connected.

在星状网络中,中心节点210提供必要的网络功能如:连接和分离、定时、路由路径等。 In a star network, the central node 210 to provide the necessary network functions such as: connection and disconnection, timing, routing paths.

无线通讯模块是家庭无线控制子网设备的核心。 Wireless communication module is the core of wireless home control sub-network devices. 无线收发器称为子节点220,安置在每个设备上;子网网关和中心节点通过无线收发器来实现。 The wireless transceiver is called the child node 220, disposed on each device; subnet gateway and the central node is achieved through the wireless transceiver.

从功能方面来看,中心节点210是全功能的无线收发器,而家电设备上的子节点220是简化功能的无线收发器。 From a functional point of view, the central node 210 is a fully functional radio transceiver, and the child node on the home devices 220 is a simplified functional radio transceiver. 无线网络通信就是这些无线设备之间的通信。 Wireless communication network is a communication between the wireless devices.

子节点220是各个家庭控制子网设备的通讯接口单元。 Child node 220 are each home control sub-device communication interface unit. 控制家电的通讯模块接收指令、数据和其它信息,并进行传输。 Control appliance communication module receives commands, data and other information, and transmitted. 如接收的数据正确,则得到控制命令和有效数据信息,再将其进行传输。 The received data is correct, then the obtained control command and valid data information, and then subjected to transmission. 这些指令可能来自子网网关、中心节点或其他通讯模块。 These instructions may come from the subnet gateway, central node or other communication module.

此设备根据这些数据信息执行相应的动作,在此动作完成后,返回给WHCN相应的反馈信息,反馈信息指示了当前此设备的现行状态或应答信息。 This device performs the corresponding operation based on these data, after this operation is completed, return to the corresponding feedback information WHCN, feedback information indicating the current active state of the device or acknowledgment information.

当然,子节点220也给WHCN传输连接设备的查询信号/反馈信息。 Of course, the child node 220 to WHCN transmission inquiry signal connection device / feedback information.

参阅图3,采用对等拓扑时,与星状拓扑不同的是:在网络中,设备之间没有中心、主从,或者等级的区分。 Referring to Figure 3, when using a peer topology, the star topology is different: in the network, there is no center between devices, master-slave, or class distinction. 设备之间的通讯,仅取决于网络状况、设备功能和许可。 Communication between devices, only depending on network conditions, device functionality and licensing. 如果任何其他节点在某节点无线电范围内,这两个节点会开始通信。 If any other nodes within a node radio range, these two nodes will start communication. 对等布局可以产生更复杂的网络形式,例如,网孔拓扑等。 Peer layout may produce a more complex network in the form, e.g., mesh topologies. 对等拓扑可以特设、自组织和自恢复,也支持多跳跃实现信息从一个设备到另一个设备的路由。 Peer topology may be ad hoc, self-organizing and self-healing, and also supports multi-jump achieve routing information from one device to another device. 当然,某个/些节点也可以作为连接简化功能节点的中心节点。 Of course, one / some of the nodes may be a central node connected to a simplified functional nodes.

请参阅图4,是本发明的方法中WHCN网络建立和启动的流程图。 Please refer to FIG. 4 is a flowchart WHCN network setup and start-up method of the present invention.

步骤S411,中心节点在当前未组网的情况下,将试图建立一个新网络。 Step S411, the central node in the current circumstances is not networking, it will attempt to establish a new network.

步骤S412,中心节点进行能量检测扫描,检查各信道能量情况,查找可能存在的通道干扰。 Step S412, the central node energy detection scan, check the channel energy situation, to find co-channel interference may be present. 中心节点通过扫描记录各信道能量情况。 The central node by scanning the recording of each channel energy situation.

步骤S413,中心节点对各信道进行主动扫描,检查各信道网络活动情况,对各信道存在网络情况进行记录。 Step S413, the central node to each channel active scanning, check the channel network activities, there is a network where the recording of each channel.

步骤S414,根据扫描信道的结果,选定一个最干净的信道作为新网络的工作信道。 Step S414, the according to the result of the scanning of channels, a selected one of the most clean channel as a working channel of the new network.

步骤S415,如果找到一个合适的信道,中心节点将为这个待建网络选择一个网络标识符,这个标识符必须是在所有信道已发现网络中独以一无二的。 Step S415, if it finds a suitable channel, the central node will select a network identifier for this to be built network, this identifier must have been found in the network only to a goes across all channels.

步骤S416,一旦WHCN网络标识符选定,中心节点将产生一个短地址,这个短地址在即将建立的这个网络中也是唯一的。 Step S416, once WHCN network identifier selected, the central node will result in a short address, the short address in the upcoming establishment of this network is unique.

步骤S417,完成上述步骤,中心节点将启动这个网络。 Step S417, the above steps, the central node will start the network. 中心节点开始发出信标,子节点可以加入到这个网络。 The central node starts to generate the beacon, the child nodes can be added to the network.

请参阅图5,是本发明的方法中子节点添加到网络的流程图。 Refer to FIG. 5, it is a method of adding the child nodes of the present invention to the flowchart network.

假定子节点没有被注册到任何网络或者子节点被从网络里删除。 Assume the child node is not registered to any network or child node is removed from the network.

步骤S511,用户输入子节点标识符(ID号),将子节点注册到中心节点上,中心节点允许设备注册(注册可以通过PDA、INTERNET网络或者中心节点上运行的应用程序等方式进行)。 Step S511, the user input sub-node identifier (ID number), the register child nodes to the central node, the central node allows the device (registration may be performed by PDA, application programs running on the INTERNET network or central node mode).

步骤S512,子节点在每一个信道上监听,查找是否有活动的网络供其注册。 Step S512, the child nodes in each channel to listen, find out if there is an active network for its registration.

步骤S513,当子节点找到一个网络,子节点将停留在这个通道上向中心节点发出注册请求。 Step S513, the when the child node finds a network, the child node will stay issue a registration request to the central node in this path.

步骤S514,当发出注册请求时中心节点接收到一个注册请求,中心节点验证这个注册请求,如果通过验证,中心节点允许子节点加入网络,将向子节点发送允许加入网络命令。 Step S514, the central node receives a registration request when issuing the registration request, the central node to verify the registration request, if verified, the central node allows child nodes to join the network, will the child node sends allowed to join the network command. 如果未通过验证,则中心节点发送注册失败命令或不做任何应答,子节点接受到注册失败命令或等待应答超时后,进入下一信道。 If not verified, the central node transmits a registration failure command or not any response, the child node receives registration after a failed command or wait for a response time-out, go to the next channel.

步骤S515,子节点接收到加入网络命令,将自身加入网络,并向中心节点发送加入网络信息。 Step S515, the child node receives the join the network command itself to join the network, and transmits added Network Information Center node.

步骤S516,中心节点接收到子节点应答,将这个节点注册成网络的一个成员。 Step S516, the central node receives the child node response will register the node as a member of the network.

步骤S517,中心节点提示这个设备成功注册到网络。 Step S517, the central node suggesting this device is successfully registered on the network.

如果中心节点接收正确的响应失败或者接收响应超时,子节点返回步骤S512,以便重复开始进入下一个信道。 If the central node receives a correct response to a failure or receiving the response timeout, the child node returns step S512, the to repeat begins to enter the next channel.

如果一个子节点扫描了所有信道仍不能得到注册,将进入下一轮循环。 If a child node scans all channels still can not be registered, we will enter the next cycle.

请参阅图6,是本发明的方法中中心节点发起从网络中删除一个子节点的流程图。 Please refer to FIG. 6 is a flowchart of deleting a child node from the network, the method according to the present invention, the central node initiated.

假设一个子节点已经被注册到一个网络。 Suppose a child node has been registered to a network.

步骤S611,中心节点发送一个删除命令给要删除的子节点。 Step S611, the central node sends child nodes of a delete command to be deleted.

步骤S612,子节点接收命令并对命令进行校验。 Step S612, the child node receives the command and command check.

步骤S613,如果校验通过,子节点将从网络中删除自己,通过内部复位清除所有内部变量为加入另一网络做准备。 Step S613, if the check is passed, the child node from the network remove yourself by internal reset clears all internal variables in preparation for the addition of another network.

步骤S614,中心节点将这个设备从设备列表和网络中删除。 Step S614, the central node of this device is removed from the list of devices and networks.

中心节点删除子节点可以要求子节点的删除确认,也可以不要求子节点的删除确认。 Central node Removes the child node can request deletion confirm the child nodes, also may not require a delete confirmation child nodes.

请参阅图7,是本发明的方法中子节点发起从网络中删除一个子节点的流程图。 See FIG. 7 is a flowchart of deleting a child node from the network method of child nodes according to the present invention is initiated.

假设一个子节点已经注册到一个网络。 Suppose a child node is registered to a network.

步骤S711,子节点发送一个删除请求命令给中心节点,希望从网络中被删除。 Step S711, the child node sends a delete request command to the central node, desired to be removed from the network.

步骤S712,中心节点校验这个命令。 Step S712, the central node check command.

步骤S713,如果校验通过,中心节点将这个节点从网络中删除。 Step S713, the if the verification passes, the central node to the node removed from the network.

步骤S714,子节点将自己从网络中删除通过内部复位清除所有内部变量为加入另一网络做准备。 Step S714, the child nodes remove yourself through internal reset clears all internal variables in preparation for the addition of another network from the network.

子节点自我删除可以要求中心节点的删除确认,也可以不要求中心节点的删除确认。 Child node delete itself may request deletion confirmation central node may not request deletion confirmation central node.

请参阅图8,是本发明的方法中工作信道选择和建立的流程图。 Please refer to FIG. 8, the present invention is a method of working channel selection and establishment of a flowchart.

步骤S811,在WHCN中,无线收发器工作时,首先运行扫描程序。 Step S811, in WHCN, the wireless transceiver is operating, would run the program.

步骤S812,在扫描过程中,中心节点逐个扫描WHCN中的每个信道。 Step S812, the scanning process, the individual scans WHCN central node in each channel.

步骤S813,在每个信道上,中心节点的接收端测量接收信号(例如ED和RSSI)的功率值。 Step S813, measuring the power value of the received signal (e.g., ED and RSSI) at the receiving end of each channel, the central node.

步骤S814,如果中心节点接收到的ED或RSSI高于CCA允许的阈值,报告这个信道处于“工作”状态。 Step S814, the if the central node receives an ED or RSSI above CCA allowed threshold, reporting the channel is "awake".

步骤S815,如果接收到的ED或RSSI低于设定的阈值,报告这个信道处于“闲置”状态。 Step S815, the ED or if the received RSSI is below a set threshold, the channel is reported in the "idle" state.

步骤S816,扫描程序运行完,中心节点可以选择一个“闲置”的信道作为初始工作信道。 Step S816, the scanner runs out, the central node may select an "idle" channel as the initial operating channel.

步骤S817,收发器或中心节点可以将选择信道的信息发送给别的收发器。 Step S817, the transceiver or the central node may transmit information for selecting a channel to the other transceiver.

步骤S818,中心节点发送信道选择命令并且要求收发器工作在选定的信道。 Step S818, the central node transmits a channel selection command and claims the transceiver operates in the selected channel.

步骤S819,当一个信道正常通信时,如果接收信号的ED很小,中心节点可以给别的接收器发送命令并且要求改变当前信道。 Step S819, when a channel for communication, if ED is small, the central node of the received signal can send commands to other receivers and requires changing the current channel.

请参阅图9,下面介绍无线家庭控制子网通信协议体系结构。 See Figure 9, the following describes wireless home control sub-network communication protocol architecture.

无线家庭控制子网的基本网络体系结构包括:物理层(PHY层)910、媒介访问控制层(MAC层)920、网络层930和应用层940,此四层全部在无线模块内;在应用层940的顶部,有一个设备和无线模块共同拥有的设备亚层950。 Wireless home control sub basic network architecture comprising: a physical layer (PHY Layer) 910, media access control layer (MAC layer) 920, a network layer 930 and application layer 940, the four are all within the wireless module; in the application layer the top 940, with a sub-layer device and a wireless device module 950 jointly owned.

需要说明的是,设备亚层950直接与设备(如家用电器、感应器等)和制造商有关。 Incidentally, the device sub-layer 950 is directly related to the devices (such as household appliances, sensors, etc.) and the manufacturer. 在应用中其功能和界面是不同的。 In the application of its functionality and interface are different. 在此,不对此层进行详细说明。 Here, without this layer is described in detail.

应用层(Application Layer)940负责处理特定的应用程序细节,实现设备与WHCN连接的接口和信息交换。 The application layer (Application Layer) 940 is responsible for processing the specific application details, implement the interface and information exchange device WHCN connected. 通过应用层,在WHCN中的其它设备只需了解虚拟的网络对象描述而不必了解该设备的具体实现细节就能实现控制/状态查询。 Through the application layer, other devices need to know the WHCN virtual network object description of the apparatus without having to know specific implementation details can achieve control / status query.

WHCN使用网络层通讯中间件来实现统一的网络通讯。 WHCN using the network layer communications middleware to achieve a unified network communications. 网络层(NetworkLayer,NWK)930隐藏底层通讯媒介的复杂性,为应用层940提供设备到设备的通信。 Network layer (NetworkLayer, NWK) 930 hides the complexity of the underlying communication medium for providing application-layer device 940 to the communication device. 其所做的工作包括:数据管理,将应用程序交给其的数据传送给下面的媒介通讯接口层(MAC/PHY)。 Of his efforts include: data management, the application to which the data to the following media communication interface layer (MAC / PHY).

传输服务管理,提供网络路径服务和网络信息,传输控制信息/状态查询在此层中进行,和网络信息共同被传送到预期设备。 Transmission service management, provides network routing service and network information, transmission control information / status query in this layer, and network common information is transmitted to the intended device.

由于不同的媒介所采用的码元编码方式,数据通讯速率、CSMA/CA实现方式、硬件连接方式等等各有不同。 Since the symbol encoding different media used, the data communication speed, CSMA / CA implementations, hardware, connections, etc. differ. MAC层(媒介访问控制层,MAC)920就是根据不同的要求和网络来确定不同的媒介通讯接口。 MAC layer (Media Access Control layer, MAC) 920 is used to determine the different media communication interface depending on the requirements and the network. 在MAC层920中,实现数据链路层部分,包括底层设备驱动程序和网络接口硬件。 In the MAC layer 920, data link layer portion, including the underlying device drivers and network interface hardware.

物理层(Physical Level,PHY)910处于网络通讯协议的最底层。 The physical layer (Physical Level, PHY) 910 at the bottom of network communication protocols. 在无线通信中,物理层负责射频传输/接收端的启动。 In wireless communications, a physical layer is responsible for starting radio transmission / receiving end. 物理数据服务有助于物理协议数据单元(PDUs)的传输/接收越过物理无线电信道。 The physical data transmission service helps physical protocol data unit (the PDUs) / reception over the physical radio channel. 物理层的主要的流出是无线收发器的活动和释放,能量探测,连接质量说明,频道选择,清晰频道评估,和越过物理媒介传输以及接收。 The main outflow physical activity and the release layer is a radio transceiver, detecting the energy, the quality of the connection described, the channel selection, clear channel assessment, across the physical media and transmission and reception.

下面分别介绍各层在组网和通讯时的规范。 The following describes the specifications of each layer in the networking and communications.

PHY层主要完成以下功能:启动和关闭无线收发器;当前通道的能量检测;信道清除估计以满足CSMA/CA方式的要求;信道频率选择;分时方式进行数据发射和接收。 The PHY layer provides the following functions: wireless transceiver startup and shutdown; current energy detection channel; clear channel estimation to meet the requirements of CSMA / CA mode; frequency selective channel; time-sharing mode for data transmission and reception.

一个设备可以工作在一个或者几个频带上。 A device can operate in one or several frequency bands. 在不同频带上,调制/扩频方式可以完全不同。 On different frequency bands, modulation / spreading mode can be completely different. 在430-435Mhz和787-797MHz频带上,目前采用FSK进行调制和扩频。 On 430-435Mhz and 787-797MHz band, currently using FSK modulation and spreading. 在以后可能采用DSSS调制方法QPSK和OQPSK调制方式。 After possible to employ DSSS modulation method QPSK and OQPSK modulation. 在将来可以选择2405MHz频带。 May be selected 2405MHz band in the future.

为了满足WHCN的发展,在每个频带上,都分配多个工作信道。 In order to meet the development WHCN in each frequency band, is allocated a plurality of working channels. 具体分配如下:在430MHz频带上,每个工作信道带宽为1MHz,代表WHCN的1#、2#、3#和4#信道:FC=431+1×(k-1)(MHz)其中,k=1,2,3,4在787MHz频带上,每个工作信道带宽为1MHz,代表WHCN的5#、6#、7#、8#、9#、10#、11#、12#、13#和14#信道:FC=788+1×(k-5)(MHz)其中,k=5,6,7,8,9,10,11,12,13,14在2405MHz频带上,每个工作信道带宽为2MHz,代表WHCN的15#、16#、17#、18#、19#和20#信道:FC=2405+2×(k-10)(MHz)其中,k=15,16,17,18,19,20物理层帧通用数据单元的格式可以是:每个PPDU(PHY Layer ProtocolData Unit,简称PPDU)数据包中包括物理层头域和物理层负荷域。 DETAILED distributed as follows: in the 430MHz band, each working channel bandwidth is 1MHz, the representative WHCN 1 #, 2 #, 3 # and 4 # Channel: FC = 431 + 1 × (k-1) (MHz) where, k = 1,2,3,4 in the 787MHz band, each working channel bandwidth is 1MHz, the representative WHCN # 5, # 6, # 7, # 8, # 9, # 10, # 11, # 12, # 13 and 14 # channel: FC = 788 + 1 × (k-5) (MHz) where, k = 5,6,7,8,9,10,11,12,13,14 in the 2405MHz band, each work channel bandwidth of 2MHz, representative of WHCN 15 #, 16 #, 17 #, 18 #, 19 # and 20 # channel: FC = 2405 + 2 × (k-10) (MHz) where, k = 15,16,17 , 18, 19, the physical layer frame common format data units may be: each PPDU (PHY layer ProtocolData unit, referred to as PPDU) packet includes a physical layer header and a physical layer load range. 物理层头域保证接收设备同步和锁定比特流;物理层负荷域包含长度可变MAC层通用数据帧。 The physical layer header to ensure that the receiving device synchronization and locking bitstream; physical layer load domain comprises a variable length Generic data frame MAC layer.

物理层头域包括训练序列域和帧分界域两部分。 The physical layer header comprises a part of the training sequence field and two frame boundary domain. 物理层头域确保发送端和接收端同步,使接收时钟和发送始钟同步,并确定帧接收的开始。 The physical layer header field to ensure the transmission and receiver synchronization, the reception clock and the transmission start clock synchronization, and determining the received frame starts. 接收端使用训练序列域确保码片和符号和一个输入信息同步。 Receiver uses the training sequence field and to ensure that chips and a symbol synchronization input information.

物理层负荷域包括MAC数据和其他信息。 The physical layer load region comprises a MAC data and other information. 通常,无线传输器的用户可允许根据不同的应用修改MAC层。 Generally, a wireless transmitter user may be allowed to modify the MAC layer depending on the application.

当用户不能定义物理层负荷域的帧长度,在MAC域中直接定义这个长度。 When the user can not define the frame length physical layer load region directly define the length of the MAC domain.

物理层负荷域长度可变(物理层头域设定长度),并且包含物理层数据包的数据。 The variable load length field physical layer (PHY header length field is set), and contains a physical layer data packet. 物理层负荷域包括MAC层帧。 The physical layer load domain includes a MAC layer frame.

物理层负荷域长度帧长度域长度为8比特,表示物理层负荷域的字节数。 The physical layer load region length frame length field length is 8 bits, represents the number of bytes in the physical layer load domain.

在WHCN中,支持多信道通信,无线模块可以要求或选择工作在不同的射频信道。 In WHCN, the support multi-channel communication, the wireless module may be required or choose to work in different radio frequency channels. 一般情况下,在WHCN中,中心节点决定WHCN中的工作信道;在一组收发器中,子中心节点决定这组收发器的工作信道。 In general, in WHCN, the central node determines the operating channel WHCN in; a set of transceivers, the sub-central node determines the operating channel the set of transceivers.

在WHCN的某工作信道中,中心节点没有探测到传输的信号;或者,在某工作信道上,探测信号值低于接收端的灵敏度,则称所述信道为挂起信道。 In one working channel WHCN the central node does not detect the signal transmission; or lower than the receiving end of sensitivity in a working channel, the detection signal value, called the channel is pending channel. 如果在某个信道上,中心节点探测到传输信号高于允许的阈值,就称这个信道没有挂起。 If the detected transmit signal is higher than the allowed threshold value of a channel, the central node, to said channel currently has no pending.

挂起信道估计(Clear channel assessment,简称CCA)允许阈值定义为:允许10dB,高于接收端的灵敏度。 Suspend channel estimation (Clear channel assessment, abbreviated CCA) allows the threshold is defined as: allow 10dB, is higher than the receiving end sensitivity.

在WHCN中,信道工作方式基于以下三个方面:使用挂起信道估计估测工作环境;使用CSMA/CA算法估测每个信道数据传输的状态;基于信道质量估测程序,无线子网中的收发器选择理想的工作信道。 In WHCN, the channel mode of operation is based on three aspects: to use the suspend channel estimation estimate the work environment; using CSMA / CA algorithm to estimate each channel data transmission state; based on channel quality estimation procedures, wireless subnet transceiver over the selected working channel.

工作信道选择和建立的流程具体是:在WHCN中,无线收发器工作时,首先运行扫描程序。 Working channel selection and building process in particular: in WHCN, the wireless transceiver is operating, would run the program.

在扫描过程中,中心节点逐个扫描WHCN中的每个信道。 During the scanning process, individual scans WHCN central node in each channel.

在每个信道上,中心节点的接收端测量接收信号(例如ED和RSSI)的功率值。 Measure the received signal at the receiving end of each channel, the central node (e.g., ED and RSSI) power value.

如果中心节点接收到的ED或RSSI高于CCA允许的阈值,物理层会报告这个信道处于“工作”状态。 If the central node receives an ED or RSSI above CCA allowed threshold, the physical report layer This channel is in the "working" state.

如果接收到的ED或RSSI低于设定的阈值,物理层报告这个信道处于“闲置”状态。 If the received ED or RSSI drops below a set threshold, the physical layer reports this channel is in the "idle" state.

扫描程序运行完,中心节点可以选择一个“闲置”的信道作为初始工作信道。 Scanner runs out, the central node may select an "idle" channels as the initial working channel.

收发器或中心节点可以将选择信道的信息发送给别的收发器。 Transceiver or the central node may choose to send information on the channel to the other transceiver.

中心节点发送信道选择命令并且要求收发器工作在选定的信道。 The central node and a transmission channel selection command in claim transceiver operates in the selected channel.

当一个信道正常通信时,如果接收信号的ED很小,中心节点可以给别的接收器发送命令并且要求改变当前信道。 When a channel for communication, if ED is small, the central node of the received signal can send commands to other receivers and requires changing the current channel.

WHCN中无线收发器的MAC层处理所有对物理射频信道的访问,并且完成以下功能:管理物理层以及提供数据和命令的接口;基于网络层和应用层命令,执行WHCN的基本功能;支持设备安全模式;采用CSMA/CA方式决定工作信道。 The MAC layer WHCN wireless transceiver handles all access to the physical radio channel, and perform the following functions: management of the physical layer and provide data and command interfaces; based on the network layer and application layer command, perform basic functions WHCN; and supporting the security device mode; using CSMA / CA scheme determining operating channel.

每个MAC帧包括以下几个基本部分:MAC头域,包括帧控制、序列数和地址信息。 Each MAC frame comprises the following basic parts: MAC header field includes a frame control, sequence number and the address information. MAC负荷域,序列长度可变,不同的MAC帧类型含不同的信息。 MAC load region, sequences of variable length, different MAC frame type containing different information. MAC尾域,包括帧校验序列。 MAC tail domain, including the frame check sequence.

MAC帧是一序列域的排列。 MAC frame is arranged in a sequence of fields. 所有帧的说明顺序是其从物理层被发射的顺序,从左到右,先发射最低有效位。 DESCRIPTION sequence of all frames is the order from the physical layer to be transmitted, from left to right, the first transmitting the least significant bit. 在每个域中,比特位标号从0(最左边、最低有效位)到k-1(最右边、最高有效位),总长度为k比特。 In each domain, bits are numbered from 0 (left-most, least significant bit) to k-1 (to the right, most significant bit), a total length of k bits. 对于长度大于一个字节的域,物理层先发射包括最低标号的字节,然后发射包括最高标号的字节。 For lengths greater than one-byte field, the physical layer to transmit comprises the lowest numbered byte, then transmitted including the highest numbered bytes.

MAC负荷域包含不同类型帧内容信息,域长度可变。 MAC domain comprises different types of load frame content information, variable length fields. 如果帧控制域中安全使能置1,MAC负荷受到安全组件的保护。 If the frame control secure domain enabled set 1, MAC load protected by the security module.

MAC尾域即帧校验序列(FCS)长度为16比特,是一个16比特ITU-T循环冗余校验。 MAC tail domain i.e., frame check sequence (FCS) length of 16 bits, a 16-bit ITU-T cyclic redundancy check.

FCS计算用16次多项式:G16(x)=x16+x12+x5+1方法如下:假设多项式M(x)=b0xk-1+b1xk-2+....+bk-2x+bk-1代表要计算校验和的序列M(x)×x16M(x)×x16G16(x)]]>(模2方式),得多项余式R(x)=r0x15+r1x14+...+r14x+r15FCS取余式的系数。 FCS calculation with 16 degree polynomial: G16 (x) = x16 + x12 + x5 + 1 as follows: Suppose the polynomial M (x) = b0xk-1 + b1xk-2 + .... + bk-2x + bk-1 representatives to calculate the checksum and sequence of M (x) & times; x16M (x) & times; x16G16 (x)]]> (modulo two) to give a number of remainder R (x) = r0x15 + r1x14 + ... + r14x + r15FCS modulo the coefficients.

在MAC层目前主要有四种帧格式,分别是信标帧、应答帧、命令帧和数据帧。 In the MAC layer present there are four frame formats, respectively, a beacon frame, a response frame, a command frame and data frames.

信标帧信息包是中心节点发送的一个重要的和特别的信息包。 The beacon frame packet is an important and special packet center sent by the node.

如下的信息被传送到信标信息包:信标信息为所有无线模块的工作建立一个时间尺度,每一个信标信号可以指出下一个信标信息的起始时间;信标信息从网关传播网络信息(包括连接、信道和更多的信息);信标信息包可将从网关的获得的路线信息发给每一个模块。 The following information is transmitted to the beacon packet: the beacon information to the work of all the wireless module to establish a time scale, each beacon signal may indicate the start time of the next beacon information; beacon information from the gateway communication networks (including the connecting channel and more information); the beacon packet may be from the route information obtained by the gateway issued to each of the modules.

应答帧来自WHCN中的每个模块,应答帧分为广播型应答帧信息和预定型应答帧信息。 Response frame from the WHCN each module, the response frame is divided into a broadcast response frame information, and the predetermined type response frame information.

广播型应答帧信息广播应答信息给WHCN中所有的设备并希望所有的节点听到应答信息。 Broadcast-type response frame information broadcast response information to WHCN all the equipment and hope that all nodes hear the greeting message.

预定型应答帧信息是指当接收端收到来自一个信息源的特殊信息时,基于要求,接收端向发射端返回一个响应。 Predetermined type response frame information means that when the receiver receives specific information from an information source, based on the requirements, the receiver returns to the transmitting end a response.

MAC命令帧格式的MAC头域包括帧控制、WHCN目标标识和地址、WHCN源标识和地址。 MAC command frame format of the MAC header includes a frame control, WHCN target identifier and the address, WHCN source identifier and the address. 如果帧控制域中的安全使能设置为0,命令负荷域应该包括MAC指令。 If the security frame control field enable is set to 0, the command load range should include a MAC instruction. 如果帧控制域中的安全使能设置为1,根据选择的安全组件,设备对命令负荷域进行处理,以决定MAC指令。 If the frame control of the security domain, so that can be set to 1, the command load region is processed according to the selected security components, devices, to determine the MAC instruction.

如果对输出MAC命令帧有安全要求,应该根据安全组件,对这个域的字节进行处理。 If the frame safety requirements for output MAC command, should be based on the security component of bytes of this field is processed.

在帧控制域中,帧类型取值100,表明是一个数据帧。 In the frame control field, a frame type value 100, indicating a data frame. 根据要求适当设定数据帧格式中别的域。 Appropriately setting the data frame format in other fields as required.

如果帧控制域中的安全使能设置为0,数据负荷域应该包括传递给上层的字节序列。 If the security frame control field enable is set to 0, the data load field should include transfer to a byte sequence the upper layer. 如果帧控制域中的安全使能设置为1,根据选择的安全组件,设备对数据负荷域进行处理,以决定传递给上层的字节序列。 If the security frame control field is enabled is set to 1, according to the selection of the security component, the device processes the data load region, to determine the transfer to the byte sequence the upper layer.

数据帧的负荷域包括上层(网络层)要求MAC层发射的字节序列。 Load-domain data for the frame comprises a byte sequence an upper layer (network layer) requires MAC layer transmission. 如果对输出数据帧有安全要求,应该根据对应目标地址之一的安全组件,对这个域的字节序列进行处理。 If there are security requirements for the output data frame, should be based on the security component, one corresponding destination address, a sequence of bytes of this field is processed.

WHCN中数据传输模式可分为三种数据传输类型:设备发射数据,数据传输给WHCN中的中心节点;设备接收数据,中心节点发射数据;两个对等设备之间数据的传输。 WHCN the data transfer mode can be divided into three types of data transmission: the device transmitting data, the data transmitted to the central node WHCN the; receive data, the central node transmits data; transmitting data between two peer.

在星状拓扑中,使用前两种传输方式,因为数据只在中心节点和设备之间交换。 In the star topology, the use of the first two transmission mode, because the data exchanged only between the central node and the device. 在对等拓扑中,网络中两个设备也可以交换数据,因此使用三种传输方式。 Peer topology, the network of the two devices may exchange data, the use of three types of transmission.

请参阅图10,下面介绍数据从设备传输到中心节点的机制:WHCN是一种信标使能的网络,这种网络支持信标的传送。 Please refer to FIG. 10, the following describes the mechanism for transferring data from the device to the central node: WHCN a beacon enabled networks that support beacon transmission.

在一个信标使能的网络中,设备首先监听网络信标。 In a beacon enabled network, the device first listen to the network beacons. 发现信标后,设备与中心节点信标信号同步。 After the discovery beacon, the device and the central node beacon signal synchronization. 当信道闲置时(使用CSMA/CA避免信道阻塞),设备发射数据帧到中心节点。 When the channel is idle (using CSMA / CA to avoid channel congestion), the device transmits the data frame to the central node. 中心节点发射一个可选的应答帧表明成功接收数据。 The central node to transmit an optional acknowledgment frame indicates a successful reception of data. 数据传输完成。 Data transfer is complete.

请参阅图11,下面介绍数据从中心节点传输到设备的机制:在一个启动信标的网络中,当中心节点发送数据到设备(收发器)时,在网络中,信标表明数据正在等待。 Please refer to FIG. 11, the following describes the mechanism for data transfer from the central node to the device: in a start beacon network, when transmitting data center node device (transceiver), in the network, a beacon indicates that data is waiting. 设备周期性的监听网络信标。 Device periodically listening network beacons. 当设备探测到信息正在中心节点等待,就放射一个要求数据的MAC命令(数据要求)。 When the device detects that the information is waiting for the central node, to radiation MAC command (data request) a data requirements. 中心节点发射一个应答帧表明成功接收数据要求。 The central node transmits a response frame indicates a successful reception data requirements. 等待的数据通过信道被发送。 Waiting for data to be transmitted over the channel. 设备发射一个应答帧表明成功接收数据。 Device transmits a response frame indicates a successful reception of data. 传输过程完成。 Transmission process is complete. 凭借接收到的应答,信息从等待信息列中删除。 With responses received, the information is deleted from the waiting information column.

为了满足特殊要求,即使没有接收到信标帧,无线节点也向中心节点发送数据要求命令。 In order to meet specific requirements, even if not received the beacon frame, the wireless node can send data request command to the central node.

如果中心节点发射一个应答帧或者数据等待命令表明成功接收数据要求并且有数据在等待,等待的数据通过信道被发送到节点。 If the central node transmits a response frame or a data wait command indicates successful reception of data requirements and data waiting, waiting for data to be sent to the node via a channel. 设备发射一个应答帧表明成功接收数据。 Device transmits a response frame indicates a successful reception of data. 传输过程完成。 Transmission process is complete. 凭借接收到的应答,在中心节点中,信息从等待信息列中删除。 With responses received, the central node, the information is deleted from the waiting information column.

如果没有数据等待,中心节点向节点发送0字节的数据帧。 If no data is waiting, the central node transmits 0-byte data frame to the node.

请参阅图12和图13,下面介绍在对等网络中数据从设备传输到设备的机制:在对等网络或星状网络中,一个设备可以和其射频影响范围内的别的设备通讯。 See FIGS. 12 and 13, the following describes the mechanism of data to peer network from the device to the device: the peer network or star network, a device may be another device communication and its radio sphere of influence. 为了有效完成这类通讯,设备需要连续接收或者设备间需要彼此同步。 In order to efficiently complete such communication, the device needs to continuously receive or inter-device needs to be synchronized with each other.

参阅图12,当一个设备向另一个设备要求数据时,设备向期望的设备发射要求数据的命令。 Referring to Figure 12, when a device requires data to another device, the device command requires the transmission of data to a desired device. 期望的设备发射应答帧表示数据要求成功的接收。 Desired device transmitting the response frame data representing the requirements of successful reception. 如果数据正在等待,期望的设备就会发射数据帧。 If the data is waiting, expect the device will transmit data frames. 如果没有数据在等待,源设备发射0长度负荷的数据帧,表明没有数据等待。 If no data is waiting, the data frame transmission zero-length load source device, indicating that no data is waiting. 要求数据的设备发射应答帧表示数据帧的成功接收。 It requires device data transmission acknowledgment frame indicating successful reception of the data frame. 传输过程结束。 Transmission process ends.

参阅图13,当一个设备向另一个设备传输数据时,设备会让数据等待准备联接,并且向期望的目标设备发射数据等待的MAC命令(数据等待)。 Referring to Figure 13, when one device transmit data to another device, the device makes the data waits ready coupled, and waits for the desired target device to transmit data MAC command (data latency). 目标设备发射一个应答帧表示数据等待信号的成功接收。 The target device transmits a response frame indicating successful reception waiting signal data. 当源设备接收到目标设备的应答帧,源设备向目标设备发送数据帧。 When the source device receives a target device response frame, the source device transmits data frames to the target device. 目标设备发射应答帧表示数据的成功接收。 The target device transmits a response frame indicating successful reception of data.

当网络层要求对输入和输出的特殊帧信息提供安全功能时,MAC层负责支持下面的安全模式:非安全模式和安全模式。 When the network layer require the safety function of the specific frame information input and output, MAC layer is responsible supports the following security modes: a non-secure mode and a secure mode.

非安全模式是MAC默认模式,不提供MAC安全功能。 Non-secure mode is the MAC default mode does not provide MAC security features. 工作在非安全模式的设备不会对输入帧信息有任何安全处理。 Work in equipment non-secure mode will not have any security processing of the input frame information.

安全模式是MAC对输入输出帧信息提供密码保护的机制。 Safe mode is a MAC to provide password protection for the input and output frame mechanisms. 当设备工作在安全模式,会使用安全算法。 When the device is operating in secure mode, using security algorithms. 安全算法包括一系列对MAC层帧信息的安全处理。 Security algorithm comprises security processing a series of MAC layer frame information. 例如,安全算法可以采用DES或AES算法。 For example, a security algorithm can be DES or AES algorithm.

网络层位于应用层和MAC层之间。 The network layer is located between the application layer and the MAC layer. 不同通讯媒体要求独立的网络层。 Different communication media independence of the network layer. 网络层的最重要工作是建立网络功能和设置网络路由选择路径。 The most important work of the network layer is to establish a network function and set network routing paths.

下面以星形拓扑为例说明网络层的规范。 Here in a star topology as an example standardized network layer. 在星形拓扑中,网络被中心节点的信号设备控制,WHCN中心节点在网络中负责启动和维护设备,以及所有其他的设备,如末端设备,直接与WHCN的中心节点联系。 In a star topology, the network is the signal device central control nodes, WHCN central node is responsible for the network startup and maintenance equipment, and all other devices, such as terminal equipment, direct contact with the central node WHCN of.

网络层主要功能可划分为网络层数据服务和网络层管理服务。 The network layer main function can be divided into network-layer data services and network layer management services.

网络层的数据服务包括:(1)数据包单元的产生和分开。 Data service network layer comprising: generating and separately (1) a data packet unit. 网络层获得应用层数据包单元(PacketData Unit,PDU)并且产生网络层PDU。 Network layer obtained application layer data packet unit (PacketData Unit, PDU) and generate a network layer PDU. 采用通过将数据分成多个PDU传递给MAC层的分帧技术。 Using framing techniques transferred to the MAC layer by dividing the data into a plurality PDU.

(2)具体拓扑路由。 (2) the specific topology routing. 网络服务支持发送PDU给适当的设备,如通讯的结束位置或通讯链路的下一步。 Network Services supports sending PDU to the appropriate equipment, such as the next end position or communication link of communication. 网络层负责在源节点和目标节点之间建立它们所使用的路由. The network layer is responsible for establishing the route they use between the source node and the destination node. 网络层可以定义自己的路由地址结构,使本地WHCN网络上的节点可以建立通讯。 The network layer can define your own routing address structure, the nodes on the local WHCN network can establish communications.

网络层的管理服务包括:网络层从应用设备获得命令并且指示MAC层完成以下工作:(1)启动WHCN:中心节点建立一个WHCN或联入存在的WHCN;(2)发现和确定一个新设备,并建立联系和交换服务;(3)联接和断开:联入WHCN或从WHCN中断开;(4)编址技术:一个WHCN中心节点给加入到网络的设备分配地址的能力;(5)接收控制:设备控制接收器活动时的能力;(6)动态信道选择:当前信道因为干扰有问题,选择一个更好的信道;(7)体拓扑维持:维持网络层的拓扑。 Management service network layer comprising: a network layer obtained from application of the device command and instructs the MAC layer performs the following tasks: (1) Start WHCN: the central node establishes a WHCN or joining present WHCN; (2) the discovery and determining a new device, and connect and exchange services; (3) is coupled and disconnected: joining WHCN or disconnected from WHCN; and (4) addressing technique: a WHCN central node to join to the distribution address of the device network capacity; (5) reception control: ability device control receiver activity; (6) dynamic channel selection: the current channel because of the interference problem, select a better channel; (7) tOPOLOGY maintained: maintaining the topology of the network layer.

网络层通过一系列网络基元实现所有的网络服务。 Network layer implements all of the network services through a set of primitives. 当网络层收到来自应用层的命令和数据,网络层设置这些基元的参数。 When the network layer receives commands and data from the application layer, the network layer is disposed parameters of these primitives. MAC/PHY层执行这些基元。 MAC / PHY layer performs these primitives.

请参阅图14,下面介绍WHCN中两个模块间数据的传输流程。 Refer to FIG. 14, the following describes the transmission flow between WHCN the two modules data.

两个模块之间进行数据交流,发送模块网络层调用网络层数据发送基元。 Data exchange between two modules, the sending module network layer invoking the network layer data transmission primitive. 当发送端的网络层发送完这个要求命令,MAC/PHY层产生一个确信信息并且返回给网络层。 When the transmission side of the network layer of the transmitting end of this request command, MAC / PHY layer to produce a confident message and returns to the network layer. 当接收端得到数据,接收端的PHY/MAC向它的网络层汇报一个指示。 When the receiving end the data receiving side PHY / MAC to its network layer reporting an indication.

请参阅图15,为提高无线通信的准确性,在发射机的网络层,来自应用层的大数据包被分成小数据包,这种小数据包适合MAC层。 Please refer to FIG. 15, in order to improve the accuracy of the wireless communication in the network layer of the transmitter, large data packets from the application layer is divided into small packets, this small packet for the MAC layer.

分帧的长度原则是:每一子帧的长度都小于NWK层帧长度。 The length of the sub-frame principle is: the length of each subframe is less than the NWK layer frame length. 除最后一个子帧外,其余子帧的长度相等。 Except the last sub-frame is equal to the remaining length of the sub-frame. 除最后一个子帧外,其余子帧的长度必须是偶字节数。 Except the last sub-frame, the remaining length of the sub-frame must be even-numbered bytes.

在分帧时,创造出子帧序号并分配给每一个子帧,可应用于MAC负荷中。 When sub-frame, to create a sub-frame number and is assigned to each subframe, it can be applied MAC payload.

在发送端NWK层中设置一个计数器,该计数器有一个最大值,表示发送一个数据包所允许的最长时间。 Provided at the transmitting end NWK layer is a counter which has a maximum value, and shows that the maximum time a packet allowed. 这个计数器从发送第0个子帧开始计数,如果计数器累计到最大值,这个数据包还没有发送完毕,发送端NWK层就抛弃属于这个数据包还没有发送的子帧。 The counter starts counting from the transmission 0th subframe, if the counter accumulated to a maximum value, the data packet has not been sent, the sender NWK layer abandoned subframe belonging to the packet are not transmitted.

每一个子帧的发送是独立的,这样就允许一个子帧的重发。 Transmission of each subframe are independent, thus allowing retransmission of a sub-frame.

一个数据包的若干子帧,在通道不发生拥塞的情况下,作为一个子帧列(burst)发送。 Several sub-packet of the frame, in the case where the channel is not congested, and as a sub-frame column (Burst) transmission.

请参阅图16,在接收端的网络层,接收到的子帧,按序号重新组合成完整的数据包,这个过程称为子帧组合。 Refer to FIG. 16, at the receiving end of the network layer, the sub-frame received, by serial number reassembled into a complete data packet, this process is called a sub-frame assembly.

接收端网络层依靠帧类型、源地址、目的地址、子帧序列号将若干属于同一个数据包的子帧进行组合。 Receiving network layer side rely on frame type, source address, destination address, the sub-frame sequence number to a number belonging to the sub-frame of the same data packet are combined.

在接收端NWK层中为每一个正在接收的数据包设置一个计数器,该计数器有一个最大值,表示接收一个数据包所允许的最长时间。 Each being received packet is provided a counter at the receiving end the NWK layer as the counter has a maximum value, it represents receiving the maximum time a packet allowed. 这个计数器从接收到当前数据包的第0个子帧开始计数,如果计数器累计到最大值,这个数据包还没有接收完毕,接收端NWK层就抛弃所有属于这个数据包的已接收的子帧。 The counter starts at 0-th subframe receiving the current packet, if the counter accumulated to a maximum value, the data packet has not been received, the receiving side the NWK layer to discard all received sub-part of the packet frames. 如果在计数器已经溢出的情况下,又收到属于此数据包的子帧,接收方向发送方发送ACK帧,并抛弃收到的子帧。 If in the case where the counter has overflowed, and receives subframe belonging to this packet, the receiving direction of the transmission side transmits an ACK frame, and discard the subframe received.

接收方NWK层抛弃收到的重复子帧。 Recipient NWK layer discarded repeats the received frame. 对应被抛弃的重复子帧接收方NWK层同样向发送方发送ACK帧。 Corresponding to abandoned repeated subframe recipient NWK layer also sends an ACK frame to the sender.

服务品质和路由程序、MAC功能和信道选择有关系。 Quality of service and routing procedures, MAC functions and channel selection relationship. 网络层应该汇报以下信息给应用层。 The network layer should report the following information to the application layer.

无线信道联接质量指示。 Radio channel link quality indication. 联接质量指示测量(link quality indication,简称LQI)是一个已接收信息包质量或强度特性。 Coupling quality indicator measurement (link quality indication, referred LQI) is a received packet quality or strength characteristics. 使用接收端能量探测、信噪比估计或联合两种方法完成联接质量的测量。 Use receiving end energy detection, SNR estimation, or combined two approaches completion of the measurement the coupling mass.

网络拓扑联接。 Network topology connection. 启动网络时,中心节点的网络层汇报网络中所有节点的地址。 When starting the network, the network layer central node reporting network addresses of all nodes. 可被定义成连接表。 It may be defined as a connection table. 启动网络时,每个节点设备(收发机)汇报星状网络中中心节点的地址,以及对等网络或网孔网络中相关节点设备的地址。 Start the network, each node device (transceiver) reported a star network in the central node address, as well as peer to peer network or mesh network related node address of the device. 两种信息都来自节点的MAC层。 Two kinds of information are the MAC layer from a node.

其它质量信息,网络层可以要求MAC层提供服务质量,MAC层接收质量服务(网络服务)请求后,给一个反馈和指示。 Other quality information, the network layer may request the MAC layer to provide the quality of service, the MAC layer receiving quality of service (network service) the request, to a feedback and instructions.

访问信道和信道扫描是基于星状拓扑网络的。 Access channel and channel scanning is performed on a star topology network.

在网络建立之前,或网络中心节点安装信道之前,在网络中的所有无线节点可在一欠缺的信道或者任一安装成被用户配置的节点信道上运作。 Before the establishment of a network, or a network central node before installing the channel, all the wireless nodes in the network may be a lack of any channel or a mounted operating the user node being configured channel.

一组节点访问信道的流程包括:启动后,中心节点扫描所有的信道并且决定星状拓扑的工作信道。 A set of nodes process access channel comprising: after startup, the central node scans all the channels and determines the operating channel star topology.

中心节点发出信道信息。 The central node sends the channel information.

无线收发机(节点)从中心节点得到信道信息。 Wireless transceivers (nodes) to obtain channel information from the central node.

在星状拓扑中,无线收发机将工作在给定工作信道。 In the star topology, the wireless transceiver will be operating at a given operating channel.

在MAC帧中的MAC头标,如果中心节点要改变这个星状拓扑的工作信道,将置信道状态为1,同时,给出下一个操作信道号。 In the MAC frame of MAC header, if the central node to change this star topology working channel, the confidence channel state is 1, and gives a next operation channel number.

如果节点设备判断信道状态为1,将工作信道转变为当前信道域所指定的信道。 If the node device determines the channel state is 1, the working channel into the channel channel domains specified current.

如果节点没有和中心节点连接上,会被动的扫描目前的WHCN网络的操作信道。 On if the node is not and the central node is connected, it will be operating channel passive scanning current WHCN network. 如果得不到操作信道,会返回到默认信道。 If not operating channel, it will return to the default channel.

信道扫描是启动程序中基本的部分。 Channel scanning is an essential part of the startup procedure. 扫描基元可以对一系列给定的信道进行信道初始化。 Scan primitives can for a given set of channel channel initialization. 设备使用信道扫描测量信道上的能量,并且寻找中心节点,或者在扫描设备范围内,寻找中心节点发射的信标帧。 Apparatus using the channel scan measurement of energy channels, and find the center node, or within the scanning range of the device, find the beacon frame central node transmitted. 能量探测扫描过程中,MAC层不应该处理任何从PHY层数据服务接收到的帧。 Energy probe scanning process, MAC layer should not process any frames received from the PHY layer data services to. 网络层可以给出扫描要求,PHY层执行完扫描任务后,MAC层会向网络层发送一个确认信息。 The network layer can be given scanning required, the PHY layer is finished performing the scan task, the MAC layer sends an acknowledgment message to the network layer. 有如下两种扫描运作:WHCN中心节点的积极扫描运作。 There are two operations follows Scan: active scanning operation WHCN central node. 目的是为全部WHCN网络找出可用的和低干扰的信道。 Object is to find available and channel low interference for all WHCN network. WHCN节点的被动扫描操作运作。 Passive scanning operation operation WHCN node. 目的是再跟踪WHCN的运作信道和恢复与WHCN的联系。 The purpose is to re-trace the operation of the channel WHCN and recovery associated with WHCN of.

下面介绍在网络层实现启动WHCN流程:完成信道扫描并且选择了一个适合的WHCN标识后,中心节点或网关会启动一个WHCN。 The following describes the network layer promoter WHCN process: After the completion of the channel scanning and selects a suitable WHCN identifier, the central node or gateway initiates a WHCN. 网关或中心节点设置一个WHCN地址。 Gateway or central node provided a WHCN address.

通过使用网络启动,网关或中心节点被命令启动一个WHCN。 By using a network boot, a gateway or central node starts a WHCN command. 接收到网络启动基元后,MAC层设置当前信道为工作信道和WHCN标识。 After receiving the network boot primitive, MAC layer sets the current channel as a working channel and WHCN identification. 完成这些后,MAC层会汇报网络启动确认基元响应并且工作为WHCN中心节点。 After these, MAC layer may report to the network boot confirm primitive response and work WHCN central node. 网络启动,汇报结果。 Network boot, reporting the results.

网关或中心节点使用网络启动要求基元开始发射信标。 Gateway or central node using a network boot in claim motif begin transmitting beacon. 接收到这个基元后,MAC层会设置WHCN标识以及在信标帧的WHCN源标识域使用这个值。 After receiving this primitive, MAC layer identifier is set and using this value WHCN WHCN source identification field in the beacon frame. 信标帧的源地址域应该包含WHCN地址的信息。 The source address field of the beacon frame should contain information WHCN address.

在WHCN中,中心节点或网关发射信标帧表示自己的存在。 In WHCN, the central node or gateway transmitting a beacon frame indicates their presence. 通过网络启动要求基元,完成信标帧发射的初始化。 The network start request primitive to complete the initialization beacon frame transmitted. 接收到这个基元后,借助设备联接的WHCN标识和设备联接的地址,中心节点或网关的MAC发射信标。 After receiving this primitive, by means of the device coupled to the address WHCN identification and equipment coupled to, the MAC transmit beacons central node or gateway.

信标帧传输数据一律为每间隔信标帧周期发送周期一信标帧。 Beacon frame transmission data uniformly for each interval of the beacon frame period of a transmission cycle of a beacon frame. 所有的无线节点通过在空间中侦听信标帧来决定不同的中心节点,然后无线节点决定与哪个中心节点连接。 All wireless nodes to determine different center nodes by listening for the beacon frames in the space, and the wireless node determines the connection to which the central node.

同时,中心节点设备的下一个更高层可要求允许一个设备为某固定时期连接。 Meanwhile, in a higher-level central node devices may be required to allow a device is connected for a fixed period. 因此,设置NWK层连接允许标志在其可接受设备到网络中的某固定时期之中设置。 Thus, provided the NWK layer connection permission flag is set in a pharmaceutically device to a fixed period of time in the network.

设备要联入一个中心节点设备的过程包括:为了最优化WHCN的联接过程,设备首先追踪中心节点的信标。 Device for joining a central node device process comprising: for the coupling process WHCN optimize device first tracking beacon central node.

WHCN中的节点,通过网络连接请求基元,仅和现存的WHCN联接,而不是启动自己的WHCN。 WHCN the nodes, via a network connection request primitive, only with existing WHCN coupling, rather than starting their WHCN.

首先,收发机的网络层要求发送网络连接请求基元到MAC层和PHY发送基元。 First, the network layer transceiver requires sending a network connection request primitive to the MAC layer and the PHY sending primitives.

中心节点一旦收到网络连接请求信息,中心节点的网络层会将设备UID与预先登记的UID列表比较。 The central node, once it receives a network connection request information, the network layer translates the device UID central node is compared with the list UID registered in advance.

如果设备UID在设备列表中,中心节点会将分配好的WHCN节点地址报告给中心节点的应用层。 If the device UID in the device list, the central node will be assigned good WHCN node address is reported to the application layer of the central node.

同时,中心节点网络层告诉应用节点这个节点地址。 At the same time, the central node network layer tells the application this node address.

响应信息被返回到联接设备的收发机,联接收发机在网络层,会产生一个联接状态的确认信息。 Response information is returned to the coupling device a transceiver, coupled to the transceiver in the network layer, generates acknowledgment information a coupled state.

完成了上面的程序,设备节点就联接到WHCN中的中心节点。 Completion of the above procedure, the device nodes can be coupled to the central node WHCN.

当然,如果中心节点的网络层没有在设备列表中找到设备UID,中心节点的网络层将会拒绝设备连接。 Of course, if the network layer of the central node does not find the device UID in the device list, the network layer of the central node will reject devices.

网络层实现设备断开过程:已经联接的设备或中心节点可以发出断开要求,要求设备从WHCN中断开。 Network layer device disconnection procedure: already coupled device or a central node can issue disconnect demands to disconnect the device from WHCN in. 要断开设备的网络层产生一个断开基元,并且被这个收发机的MAC和PHY层在断开命令中发送。 To disconnect a network layer device generates a disconnection primitives, and is transmitted to this transceiver MAC and PHY layers in the disconnection command.

MAC层执行网络断开请求后,给网络层一个响应。 MAC layer performs the network disconnection request, a response to the network layer.

中心节点一旦收到这个命令,就收集以下命令并且汇报给网络层。 Upon receipt of this command the central node, to collect and report the following command to the network layer. 中心节点的网络层执行断开并且不反馈反应。 Network layer performs central node is turned off and no feedback reaction.

从中心节点接收等待的数据过程:在启动信标的WHCN中(星状网络),一个设备通过检查接收到的帧的内容,可以决定是否有帧正在等待。 From the data process center node reception wait: start beacon WHCN in (star network), the contents of a device received through the inspection frame, may decide whether a frame is waiting. 如果设备地址包含在信标帧地址序列中,设备的网络层会发送一个应答要求域设置为1的数据要求命令给中心节点。 If the device address contained in the beacon frame in the sequence of addresses, the network layer device sends a response request field is set to a data request command to the central node.

还有另外一种情况,设备要求中心节点发送信息到设备。 There is another case, the device requires the central node transmits information to the apparatus.

设备的网络层产生网络登记请求基元。 Network layer device generates a network registration request primitive. 这些基元源自网络层。 These primitives from the network layer. MAC/PHY层执行并且发送数据要求命令给中心节点。 MAC / PHY layer is performed and transmits the data request command to the central node.

设备的MAC/PHY层执行完网络登记请求基元后,会产生确认信息到设备的网络层。 MAC device / PHY layer of executing the network after registration request primitive, generates the network layer acknowledgment information to the device.

成功接收到数据要求命令后,中心节点会发送一个应答帧来确认接收。 Successfully received the data request command, the central node transmits an acknowledgment frame to acknowledge receipt. 如果设备有足够的时间决定是否设备有一个等待帧并且能在MAC应答等待周期内发送应答帧,设备会根据是否确实有一个帧在等待,来设置应答帧的帧等待域。 If the device has enough time to decide whether the device has a frame which waits for and can respond to the transponder during the waiting period of a frame in the MAC, the device according to whether indeed there is a frame waiting to set the frame response frame latency field. 接收到帧等待域设置为0的应答帧,设备断定中心节点没有数据在等待。 Receiving the frame waiting field is set to answer frame 0, to determine the central node device has no data waiting.

接收到帧等待域设置为1的应答帧后,设备启动接收端,在信标启动的WHCN中,接收端寻找至多最大帧响应时间个符号周期,在信标关闭的WHCN中,接收端工作数个符号周期,从中心节点终端接收相应的数据帧。 After receiving the frame waiting field set to the response frame 1, start the receiving side apparatus, the WHCN beacon activated, the receiving terminal looking up to the maximum frame response time of symbol periods, beacon closed WHCN, the number of the receiving end symbol periods, receiving the corresponding data frame from the central node terminal. 如果中心节点有要求设备等待的数据,中心节点会发送数据帧到设备。 If the central node has data required device waits, the central node transmits a data frame to the device. 如果中心节点没有要求设备等待的数据,中心节点会发送不要求应答帧并且负荷长度为0的一个数据帧给设备,表明现在没有数据,如果要求的设备确实从中心节点接收到一个数据帧,设备应该发送一个应答帧确认接收。 If the central node has no data device waits claim central node will send does not require a response frame and the load length of a 0 data frame to the device, indicated that none of data, if the requested device does receive from the central node to a data frame, the device it should send an acknowledgment frame acknowledging receipt. 如果从中心节点接收的数据帧的帧等待域设置为1,设备还得等待更多的来自中心节点的更多的数据。 If received from the central node of a data frame a frame waiting field is set to 1, the device have to wait more additional data from the central node. 在这种情况下,设备通过给中心节点发射一个新的数据要求命令接收数据。 In this case, the device transmits a new data request command received data to the central node.

下面描述应答命令和应答要求域的关系:发送数据或者MAC命令帧时,应答要求域应该适当取值。 The following describes the relationship between the reply command and the response request field: transmitting data or MAC command frame, the response request field should appropriate value.

应答要求域(acknowledgment request,简称AR)设置为0的发射的帧不会被应答。 Response request field (acknowledgment request, referred to as AR) is provided to the frame transmitted 0 can not be acknowledged. 源设备认为帧信息传输成功。 The source device believed frame information transmission success.

接收端要应答那些应答要求域设置为1的发射帧。 The receiving end to the response that the response request field is set to transmit frame 1. 如果期望的接收端正确接收到帧,接收端产生并且发送一个应答帧,这个应答帧包括与正在被应答的数据帧或MAC命令帧相同的数据序列数。 If desired the receiving side correctly receives the frame, the receiving end generates and transmits a response frame, the response frame comprising a sequence of the same frame number data being data frame or a response MAC command.

下面描述重发机制:发送应答要求域设置为0的设备认为发送被成功接收,因此不会执行重新发射程序。 The following description retransmission mechanism: sending the response request field is set to device 0 in that the transmission was successfully received, and therefore does not perform retransmission procedure.

发送一个应答要求域设置为1的数据帧或MAC命令帧的设备,等待最多MAC应答等待个符号周期来接收响应的应答帧信息。 Transmitting a response request field is set to the device data frames or MAC command 1 frame, waiting up MAC response frame information response-waiting symbol periods to receive a response.

如果在MAC应答等待个符号周期内接收到一个应答帧并且应答帧包含和源发射相同的数据序列数,设备认为这次传输成功并且不会有进一步的行为。 If the response waiting for a response frame received by the symbol periods in the MAC and the response frame comprising a source emitting the same number of data series, the device that the success of this transfer and no further actions. 如果在MAC应答等待个符号周期内没有接收到一个应答帧并且应答帧包含和源发射不相同的数据序列数,设备认为这次传输失败。 If the MAC response-waiting is not received within a symbol period to a response frame and the response frame contains the source emission are not the same number of data series, the device that the transmission fails. 设备会再次重发帧。 Equipment will once again retransmit frames. 程序会重复最大重发时间个符号周期。 The program repeats the maximum retransmission time symbol periods.

下面描述注册节点清除过程:应用层请求重新设置节点,然后,网络层和MAC层恢复到初始条件。 The following describes registration node removal process: application layer requests reset node, then the network layer and MAC layer returns to the initial condition. 网络重新设置要求基元处理优先级高于网络启动要求和网络联接要求基元,接收到这个基元后,网络层和MAC层被设置为初始条件,清除所有内部变量恢复成自定义的值。 Network re-setup requirements primitive processing priority than network boot requirements and the network connection requirements primitives, after receiving this primitive, the network layer and MAC layer are set to initial conditions, clearing any internal variables restored to the custom value. 重新设置无线节点后,网络层汇报重新设置确认基元到应用层。 After resetting the wireless node, layer report to the network re-setting confirmation primitive to the application layer.

下面描述启动和关闭收发器过程:收发器的接收端不需要总是处于工作状态,设备或网络层控制接收端的启动和关闭。 The following describes startup and shutdown transceiver procedure: the receiving end of the transceiver need not always be in operation, device, or network layer control startup and shutdown receiving end. 基元定义设备怎样在给定的时间启动和关闭接收端。 Primitive defines how the device at any given time to start and turn off the receiver side.

接收活动包括启动、检验和禁止。 Receive activity including startup, testing and prohibited. 通过说明接收器在正常情况下运作。 Receiver operating normally by way of illustration. 检验说明接收器仅仅听从信标信号运作。 Test description The receiver just follow the beacon signal operation. 禁止说明关闭接收器的运作。 Prohibit description turn off the receiver operation.

接收端的工作时间给出执行这些接收活动的持续时间,单位可是字节/传输时间或MS。 Receiving end of the working time given execution time duration of the received events, units but bytes / transmission time or MS.

MAC/PHY层实现这些基元后,MAC层向网络层发送确认信息报告接收端的状态。 After the MAC / PHY layer implements these primitives, MAC layer sends an acknowledgment status information of the receiving terminal to the network layer.

应用层(Application Layer)位于整个WHCN体系的顶部,也是WHCN和具体设备之间统一接口层。 The application layer (Application Layer) located across the top WHCN system, is unified interface layer between WHCN specific devices.

应用层主要完成如下功能:(1)应用层发送对无线模块的设备控制命令。 The application layer performs the following functions: (1) an application layer transmits a device for wireless module control command.

(2)应用层监视无线模块的操作状况。 (2) an application layer monitors the operation status of the wireless module.

(3)应用层收集并格式化全部的设备信息和指挥命令。 (3) Application layer was collected and formatted all device information and command command.

(4)应用层通过设备命令给WHCN网络层发送设备请求和状态。 (4) the application layer sending device requests and status to WHCN network layer device command.

(5)应用层从模块的网络层收集网络信息(状态、数据、命令)。 (5) the application layer network layer was collected network information module (status, data, commands) from. 应用层会做一简单处理。 The application layer will do a simple process.

请参阅图17,示出信息在应用层和网络层之间的交换流程。 Referring to FIG 17, illustrates a process of information exchange between the application layer and the network layer. 此处,两者之间定义两种信息,询问/命令和ACK。 Here, the definition of two types of information therebetween, inquiry / command and ACK.

通信和应用层帧的格式化在应用层和网络层之间进行。 Communications and formatting the application layer frames between the application layer and the network layer.

使用者或设备可发送命令控制相连接模块的运作。 User or device may send commands to control the operation of connected modules. 包括:启动/关闭模块运作、设置模块操作频道、请求模块扫描所有运作频道并可在一个可用频道中工作。 Comprising: a startup / shutdown module operation, the setting module the operation channel request module scans all active channels and operates one of the available channels.

启动/关闭模块。 Activate / deactivate modules. 设备给连接模块发送启动操作命令。 Apparatus sends a start operation command to the connection module. 该命令使模块从睡眠模式中唤醒进入到工作模式。 This command enables the module from sleep mode wake up to the operating mode. 设备给连接的模块发送停止操作命令。 Device to the module connected to the transmission stop operation command. 该命令使模块从工作模式返回至睡眠模式。 This command enables the module to return from work mode to sleep mode. 无论该模块接收到的是启动命令还是停止命令,都会给设备提供一个快速的ACK,即使其正在执行命令。 Regardless, the module receives a start command or stop command, will give device provides a fast ACK, even if it is executing a command.

设置操作频道。 Set operating channel. 设置给连接模块发送询问。 Is provided to the connection module to send inquiry. 询问要求模块在给出的频道中工作。 Inquiry request module in the channel given. 当要求模块的频带频道打开或者不能打开频道时,网络层给应用层发回ACK。 When the requirements of the module band channel open or not open channel, the network layer to the application layer sends back ACK.

扫描操作群和设置操作频道。 Scanning operation group and set the operating channel. 设备给连接模块发送请求,要求模块扫描所有的操作频道,并确定一个有用频道地址。 The device sends a request to the connection module, the module to scan all operating channels, and determining a useful channel address.

所有设备,包括网关和其他设备,自己的询问或网关(或其他设备)的需求加入WHCN,在网络层部分,详细的网络功能已讨论和定义。 All equipment, including gateways and other equipment, its own inquiry or gateway (or other device) needs to join WHCN, at the network layer, and the detailed network functions have been discussed and defined. 下面介绍网络层和应用层之间的相应活动。 Here corresponding activities between the network layer and the application layer.

设备和WHCN相连方式包括:设备直接申请和WHCN连接,网关注册确认相连接的设备;如果网关发现有一些设备未被注册,网关可以发送询问去查询未注册设备。 Equipment and WHCN connected include: equipment directly apply and WHCN connection, the gateway registration confirmation device is connected; if the gateway is found that some equipment is not registered, the gateway can send a query to query an unregistered device.

设备和网络信息在网关,移动控制中心和设备之间的交换包括:申请下载设备文件,网关询问和设备连接的模块报道的设备信息;上载设备文件,设备给网关传递设备信息;申请下载设备注册表,移动控制中心要求网关提供连接信息;上载设备注册表,网关给移动控制中心发送连接信息。 Device and network information exchanged between the gateway, the mobile control center and the apparatus comprising: application download device file, the device information module gateway queries and attached reports; upload device file device to the gateway transmitting device information; application downloading apparatus registration table movement control center claim gateway connection information; upload device registry, the gateway to the mobile control center transmits the connection information.

设备从WHCN断开方式包括:设备询问与WHCN断开;网关询问设备与WHCN断开。 Equipment from WHCN disconnecting means comprises: device query and WHCN disconnected; gateway interrogation device WHCN disconnected.

实现设备与WHCN连接的过程如下:从设备应用层发出设备申请注册询问:设备应用层产生这个命令格式,格式被转换成网络层基元,由MAC和PHY层执行网络层的基元。 Implementation device WHCN connection is as follows: devices issuing request registration inquiry from the application-layer device: The device application layer command format, the format is converted into the network layer primitives, the MAC and the primitive PHY layer performs network layer. WHCN的网关注册该模块,与设备连接,通过设备申请注册格式,设备,模块完成联接程序。 WHCN gateway register the module connected to the device to complete the coupling procedure via the device application registration format, devices, modules. 联接完成后,无线模块在WHCN中注册并且得到一个WHCN地址。 After the coupling is completed, the wireless module registered in WHCN in and get a WHCN address.

网关注册确认后,设备获得网关报告及在WHCN中的节点地址。 After the gateway registration confirmation, a device is a gateway reports and node address in WHCN in. 然后,从设备的网络层到应用层要求一个ACK。 Then, from the network layer device to the application layer requires an ACK. 如果连接失败,ACK也要求报道失败。 If the connection fails, ACK also requires reports to fail.

网关应用层查询网关注册确认。 Gateway Application Layer Discover gateway registration confirmation. 网关收到设备申请注册的信息帧后。 Gateway after receiving the information frame device application for registration. 将设备UID和储备的设备UID进行比较,当确认应用设备属于该WHCN时,会给网关的应用层发送网关注册确认。 The apparatus UID apparatus UID and reserves compared, when it is confirmed applications belonging to the WHCN, give the gateway application layer gateway registration confirmation.

网关的网络层会给相连接的设备一个WHCN地址并发送确认命令。 Network layer gateway will connect devices a WHCN address and sends an acknowledgment command.

当连接的设备收到这个确认后,会给网关回发一个ACK,然后,网关的网络层会给网关的应用层发送一个ACK。 When the connection device receives this confirmation, will gateway postback a the ACK, then the network layer will gateway gateway application layer to send an ACK.

网关的应用层中查问网关查询未注册设备:当网关找到一些先前被网关注册的设备ID,没和目前的WHCN连接时,应用层就会发送网关查询未注册设备到网络层去寻找这个设备。 Application layer gateway questioning gateway query is not registered device: When the gateway to find some device ID previously gateways registered, when not with the current WHCN connection, the application layer will be sent Gateway query does not register the device to the network layer to find this device.

当网关的模块和目标设备连接时,会给网关报告连接成功信息。 When the gateway module and the target device is connected, give the gateway reports a successful connection information. 如果没有成功,一定时间间隔之后,会给网关报告连接失败信息。 If not, after a certain time interval, it will give the gateway reports a connection failure information.

设备和网络信息在网关,移动控制中心和设备之间交换过程如下:申请下载设备信息:网关或或者其他设备询问目标设备并要求报告设备信息。 Devices and network information between the gateway, the mobile control center and the device exchange process are as follows: Info request downloading apparatus: a gateway or or other device inquiry target device and required to report the device information. 网关从应用层发送一个询问到网络层。 The gateway application layer transmitted from a query to the network layer. 网络层从源设备或网关获得应用询问。 Network Layer obtain application inquiry from the source device or gateway. 然后网络层执行所有网络操作去和预期连接的设备模块通讯。 Then the network layer performs module communication all network operations to and intended to be connected to the device. 目标程序(来自连接的模块)将在数据或ACK信号中回复设备信息。 Target program (module from connection) will return the device information in the data or ACK signals. 当源设备模块在固定的时间内得到或得不到它的必要设备信息时,网络层就会向应用层给出ACK回复。 When the source device module or no access to it the necessary device information within a fixed period of time, the network layer will give ACK reply to the application layer. 在ACK里报告设备信息。 Report device information in the ACK years.

上载设备信息:设备发送设备信息到目标设备或网关。 Upload device information: the device transmits the device information to a target device or gateway. 上载设备信息是说设备或者网关直接发送信息到网关或目标设备。 Upload device information is said device or gateway transmit information directly to the gateway or the target device. 发送的包长度由网络层决定。 Packet length transmitted is determined by the network layer. 源设备的网络层获得上载设备信息,MAC/PHY直接发送这个信息到目标模块(设备)。 The network layer of the source device obtained uploads device information, MAC / PHY directly transmits this information to the target module (device). 当源设备的网络层从目标设备获得成功的ACK信号,或没有在固定的时间内收到ACK信号时,源模块的网络层会给出一个ACK到它的应用层。 When the network layer of the source device obtained successfully from the target device the ACK signal, or there is no ACK signal is received within a fixed period of time, the network layer of the source module will give an ACK to its application layer.

申请下载设备注册表:指命令/询问从移动控制中心到网关并查问网络连接信息。 Registry application download device: refers to the command / query connection information from the mobile control center to the gateway and inquire network. 这是一个在移动控制中心和网关之间的特殊询问。 This is a special inquiry between the mobile control center and gateway. 模块网络层在移动控制中心会处理这个UAI,MAC/PHY层会给网关模块发送这个询问。 Module of the network layer in the mobile control center may process the UAI, MAC / PHY layer will gateway module sending the request. 当移动控制中心的网络层从网关获得请求网络连接信息时,或在固定时间内没收到时,移动控制中心的网络层DUO会给出一个带有网络信息的ACK到应用层中。 When the mobile control center of the network layer request to obtain the network connection information from a gateway, or when not received within a fixed time, the network layer DUO mobile control center will give an ACK with the network information to the application layer.

上载设备表注册表:指网关发送网络连接信息到移动控制中心。 Upload device table in the registry: refers to the gateway sending a network connection message to a mobile control center. 当网关的网络层从移动控制中心获得成功的ACK信号,或者在固定的时间内没有获得ACK信号时,网关的网络层会给出一个ACK到应用层。 When the gateway network layer success from the mobile control center ACK signal or not obtain an ACK signal within a fixed time, the gateway network layer will give an ACK to the application layer.

通过以下过程实现设备与WHCN断开:当设备不得不和网络断开,或者网关以任何理由期望设备和当前WHCN断开时,设备的应用层会给网关发送一个询问,或者网关将从它的应用层给出一个命令。 For device and WHCN turned off by the following procedure: When the equipment had to and disconnected from the network, or gateway for any reason to expect the device and the current WHCN off, the application layer will give the gateway device sends an inquiry, or gateway from its application layer is given a command.

设备申请注销是指设备与WHCN断开。 Equipment to apply for cancellation refers to the device and WHCN disconnected. 原则上,来自源设备的询问不需要网关的ACK.当网关的模块收到来自源设备MAC/PHY的询问时,网关将设备和WHCN断开。 In principle, an inquiry from the source device does not require a gateway of the ACK. When the gateway module receives an inquiry from the source device MAC / PHY, the gateway device and WHCN disconnected.

网关申请注销设备指网关期望把设备和WHCN网络断开。 Gateway apply for cancellation device refers to a gateway expect the equipment and WHCN disconnected from the network. 从这个询问中,可能不需要来自目标模块或设备网络层的ACK。 From this query may not be required ACK from the target module or device of the network layer.

以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 The above are only preferred embodiments of the present invention, it should be noted that those of ordinary skill in the art who, without departing from the principles of the present invention is provided, can make various improvements and modifications, improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims (20)

1.一种家庭网络无线组网和通讯的方法,所述家庭网络包括多个节点;其特征在于,包括步骤:1)中心节点建立和启动新的网络;2)子节点添加到该中心节点启动的新网络中;3)节点之间进行通讯;其中,所述步骤1)包括:11)所述中心节点进行能量检测扫描,通过扫描记录各信道能量情况;12)所述中心节点对各信道进行主动扫描,检查各信道网络活动情况,对各信道存在网络情况进行记录;13)根据扫描信道的结果,选定新网络的工作信道;14)所述中心节点为该新网络选择网络标识符,产生短地址;15)所述中心节点启动该新的网络,发出信标。 1. A method for a home network wireless networking and communications, the home network comprising a plurality of nodes; characterized by, comprising the steps of: 1) establishing a central node and starts a new network; 2) Add a child node to the central node start the new network; 3) between nodes communicate; wherein said step 1) includes: 11) the central node energy detection scan by scan recording each channel energy situation; 12) of the central node for each channel is active scanning, check the channel network activities, there is a network where the recording of the respective channels; 13) according to a result of scanning channels, the selected operating channel of the new network; 14) the central node selecting a network identifier for the new network character, generating short address; 15) the central node starts the new network, sends out a beacon.
2.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,所述步骤2)包括:21)用户输入子节点标识符,将子节点注册到中心节点上;22)子节点在信道上监听,查找活动的网络;23)当子节点找到网络时,子节点将停留在该信道上向中心节点发出注册请求;24)中心节点接收并验证所述注册请求;如果通过验证,中心节点向子节点发送允许加入网络命令;25)子节点接收到加入网络命令后加入网络,并向中心节点发送加入网络信息;26)中心节点接收到子节点应答,将该节点注册成网络的成员。 2. The method of claim 1, the home network wireless networking and communications claim, wherein said step 2) includes: 21) a user input sub-node identifier to register child nodes to the central node; 22) subnode channel monitoring, lookup network activities; 23) when the child node of a network is found, the child node will stay in the channel issued the registration request to the central node; 24) the central node receives and verifies the registration request; if by verification, the central node transmits to the child node allowed to join the network command; 25) child node is added after receiving the added network commands the network, and transmits added network information Center node; 26) central node receives the child node response, the node registered as members of the network.
3.如权利要求2所述的家庭网络无线组网和通讯的方法,其特征在于,所述步骤26)中,如果中心节点接收正确的响应失败或者接收响应超时,子节点返回步骤22),以便重复开始进入下一个信道;如果子节点扫描所有信道仍不能得到注册,将进入下一轮循环。 3. The method of claim 2 home network wireless networking and communications claim, wherein, in the step 26), if the central node receives a correct response to a failure or receiving response timeout, a child node returns to the step 22), to repeat the start into the next channel; If the child node scans all channels still not registered, and enters next cycle.
4.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,还包括从网络中删除子节点:41)中心节点发送删除命令给要删除的子节点;42)子节点接收命令并对命令进行校验;43)如果校验通过,子节点将从网络中删除自己,通过内部复位清除所有内部变量为加入另一网络做准备;44)中心节点将该子节点相应的设备从设备列表和网络中删除;其中,中心节点删除子节点可以要求子节点的删除确认,也可以不要求子节点的删除确认。 4. The method of a home network of wireless networking and communications according to claim 1, characterized in that, further comprising deleting child nodes from the network: 41) central node sends a delete command to the child node to be deleted; 42) subnode reception command and the command checksum; 43) if the check passes, the child node from the network to remove themselves, by internal reset all internal variables in preparation for the addition of another network; 44) central node the child node corresponding device is deleted from the list of devices and networks; wherein, the central node deletes the child node may request a delete confirmation child node, it may not be required to delete confirmation child node.
5.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,还包括从网络中删除子节点:51)子节点发送删除请求命令给中心节点,希望从网络中被删除;52)中心节点校验该删除请求命令;53)如果校验通过,中心节点将该子节点从网络中删除。 5. The method of a home network of wireless networking and communications according to claim 1, characterized in that, further comprising deleting child nodes from the network: 51) child node sends a delete request command to the central node, desired to be removed from the network ; 52) the central node check the deletion request command; 53) If the check, the central node of the child node from the network deleted. 54)子节点将自己从网络中删除,通过内部复位清除所有内部变量为加入另一网络做准备;其中,子节点自我删除可以要求中心节点的删除确认,也可以不要求中心节点的删除确认。 54) subnode remove themselves from the network, through the internal reset all internal variables in preparation for the addition of another network; wherein the child node delete itself may request a delete confirmation central node, it may not be required to delete confirmation center node.
6.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,家庭网络中工作信道的选择和建立包括:61)在扫描过程中,中心节点逐个扫描家庭网络中的每个信道;62)在每个信道上,中心节点的接收端测量接收信号的功率值;63)如果中心节点接收到的测量值高于允许的阈值,报告该信道处于工作状态;64)如果接收到的测量值低于设定的阈值,报告该信道处于闲置状态;65)扫描完毕,中心节点选择一个闲置的信道作为初始工作信道; 6. The method of a home network of wireless networking and communications according to claim 1, wherein the selecting and setting up a home network operating channel comprises: 61) during scanning, the central node individual scans the home network each channels; 62) measuring the power of a received signal at the receiving end of each channel, the central node; 63) if the central node receives the measured value is higher than the allowed threshold, the report of the channel in the working state; 64) if the received the measured value is below a set threshold, the report of the channel is idle; 65) have been scanned, the central node selects an idle channel as the initial working channel;
7.如权利要求6所述的家庭网络无线组网和通讯的方法,其特征在于,家庭网络中工作信道的选择和建立还包括:71)收发器或中心节点将选择信道的信息发送给别的收发器;72)中心节点发送信道选择命令并且要求收发器工作在选定的信道;73)当信道正常通信时,如果接收信号的功率值较小,中心节点可以给别的接收器发送命令并且要求改变当前信道。 7. The method of a home network of wireless networking and communications according to claim 6, wherein the selecting and setting up a home network operating channel further comprises: 71) transceiver or central node selection information transmission channel to the other transceiver; 72) the central node transmits a channel selection command and claims the transceiver operates in the selected channel; 73) when the channel is normal communication, if the power of the received signal is small, the central node can send commands to other receivers and it requires changing the current channel.
8.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,所述步骤3)的通讯包括数据从设备传输到中心节点:设备首先监听网络信标;发现信标后,设备与中心节点信标信号同步;当信道闲置时,设备发射数据帧到中心节点;中心节点发射可选的应答帧表明成功接收数据;数据传输完成。 8. The method of a home network of wireless networking and communications according to claim 1, wherein said step 3) correspond include data from the device to the central node: device first listening network beacons; the beacon discovery , equipment and the central node beacon signal synchronization; when the channel is idle, the device transmits the data frame to the central node; central node to transmit an optional acknowledgment frame indicating a successful reception data; data transfer is complete.
9.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,所述步骤3)的通讯包括数据从中心节点传输到设备:在启动信标的网络中,当中心节点发送数据到设备时,信标表明数据正在等待;设备周期性的监听网络信标;当设备探测到信息正在中心节点等待,就发射要求数据的命令;中心节点发射应答帧表明成功接收数据要求;等待的数据通过信道被发送;设备发射应答帧表明成功接收数据;传输过程完成。 9. The method of a home network wireless networking and communications according to claim 1, wherein said step 3) correspond include data from the central node transmitted to the device: starting a beacon enabled network, when the central node sends when the data to the device, a beacon indicates that data is waiting; device periodically listening network beacons; when the device detects that the information is waiting for the central node, to transmit command data request; central node transmits a response frame indicates a successful reception data requirements; wait the data is transmitted over the channel; device transmits a response frame indicates a successful reception of data; transmission process is completed.
10.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,所述步骤3)的通讯包括数据从中心节点传输到设备:设备即使没有接收到信标帧,也向中心节点发送数据要求命令;如果中心节点发射应答帧或者数据等待命令表明成功接收数据要求并且有数据在等待,等待的数据通过信道被发送到设备;设备发射应答帧表明成功接收数据;传输过程完成;如果没有数据等待,中心节点向设备发送0字节的数据帧。 10. The method of home network wireless networking and communications according to claim 1, wherein said step 3) correspond include data from the central node transmitted to the device: the device even without receiving the beacon frame, but also to the central node transmits a data request command; if the central node transmits a response frame or a data wait command indicates successful reception of data requirements and data waiting, waiting for data to be transmitted to the device through the channel; device transmits a response frame indicates a successful reception of data; transmission completed ; If no data is waiting, the central node transmits 0-byte data frame to the device.
11.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,所述步骤3)的通讯包括数据从设备传输到设备:当一个设备向另一个设备要求数据时,设备向期望的设备发射要求数据的命令;期望的设备发射应答帧表示数据要求成功的接收;如果数据正在等待,期望的设备就会发射数据帧;如果没有数据在等待,源设备发射0长度负荷的数据帧,表明没有数据等待。 11. The method of home network wireless networking and communications according to claim 1, wherein said step 3) correspond include data from the device to the apparatus: When a device data to another device requirements, equipment transmitting to a desired device request command data; desired device transmitting the response frame data representing the requirements for successful reception; if data is waiting, the desired equipment will transmit a data frame; If no data is waiting, the source device transmits a zero length load data frame, indicating that no data is waiting. 要求数据的设备发射应答帧表示数据帧的成功接收;传输过程结束;当一个设备向另一个设备传输数据时,设备让数据等待准备联接,并且向期望的目标设备发射数据等待的命令;目标设备发射应答帧表示数据等待信号的成功接收;当源设备接收到目标设备的应答帧,源设备向目标设备发送数据帧;目标设备发射应答帧表示数据的成功接收。 Requires device data transmission acknowledgment frame indicating successful reception of the data frame; end of a transmission; when one device transmit data to another device, the device allows data wait ready coupled, and the pending command to the desired target device transmits data; target device transmitting the response frame data indicating successful reception wait signal; when the source device receives a target device response frame, the source device transmits to the target device data frame; target device transmits a response frame indicating successful reception of data.
12.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,物理层帧通用数据单元数据包中包括物理层头域和物理层负荷域;物理层头域保证接收设备同步和锁定比特流;物理层负荷域包含长度可变媒介访问控制层通用数据帧;物理层头域包括训练序列域和帧分界域两部分。 12. The method of a home network of wireless networking and communications according to claim 1, characterized in that the physical layer frame generic data unit packet includes a physical layer header and a physical layer load region; physical layer header fields ensure that the receiving device synchronization and locking bitstream; physical layer load domain comprises a variable length generic data frame medium access control layer; physical layer header field comprises two portions of the training sequence field and the frame boundary domain.
13.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,在家庭网络中,信道工作方式基于以下三个方面:使用挂起信道估计估测工作环境;使用CSMA/CA算法估测每个信道数据传输的状态;基于信道质量估测程序,无线子网中的收发器选择理想的工作信道。 13. The method of home network wireless networking and communications according to claim 1, wherein, in a home network, the channel mode of operation is based on three aspects: the estimated estimation OPERATING ENVIRONMENT hang channels; using CSMA / CA algorithm to estimate the state of each channel for data transmission; based on channel quality estimation program, a wireless subnetwork transceiver select the desired operating channel.
14.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,媒介访问控制层帧包括:媒介访问控制层头域,包括帧控制、序列数和地址信息;媒介访问控制层负荷域,序列长度可变,不同的媒介访问控制层帧类型含不同的信息;媒介访问控制层尾域,包括帧校验序列;其中,如果帧控制域中安全使能置位,负荷域受到安全组件的保护。 Media access control; medium access control layer header fields, including a frame control, sequence number and the address information: 14. A method as claimed in a home network of wireless networking and communication of claim 1, wherein the medium access control layer frame comprises layer load region, sequences of variable length, different media access control layer frame type containing different information; medium access control layer tail domain, including the frame check sequence; wherein, if the frame control secure domain enable bit is set, load range protected security components.
15.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,媒介访问控制层帧分为信标帧、应答帧、命令帧和数据帧;其中,命令帧格式的媒介访问控制层头域包括帧控制、家庭网络目标标识和地址、家庭网络源标识和地址;如果帧控制域中的安全使能设置为0,命令负荷域还包括媒介访问控制层指令;如果帧控制域中的安全使能设置为1,根据选择的安全组件,设备对命令负荷域进行处理,以决定媒介访问控制层指令;数据帧的帧控制域中具有相应的帧类型取值,适当设定数据帧格式中别的域;如果帧控制域中的安全使能设置为0,数据负荷域应该包括传递给上层的字节序列;如果帧控制域中的安全使能设置为1,根据选择的安全组件,设备对数据负荷域进行处理,以决定传递给上层的字节序列。 15. The method of home network wireless networking and communications according to claim 1, wherein the media access control layer frame is divided into a beacon frame, a response frame, a command frame and a data frame; wherein the command media frame format access control layer header includes a frame control, the home network destination identifier and the address, the home network source identifier and the address; if security frame control field enable is set to 0, the command load region further comprises a media access control layer instruction; if frame control safety in the domain can be set to 1, the command load region is processed according to the selected security components, devices, to determine the media access control layer instruction; data frame is a frame control field having a corresponding frame type values, appropriately set data frame format other field; if the frame control secure domain enable is set to 0, the data load field should include transfer to a byte sequence an upper layer; if the frame control secure domain enabled is set to 1, according to the selection of security component, device data load field processed to determine the transfer to the byte sequence the upper layer.
16.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,网络层获得应用层数据包单元并且产生网络层数据包单元;网络层采用分帧技术将数据分成多个数据包单元传递给媒介访问控制层;网络层负责在源节点和目标节点之间建立其所使用的路由;网络层定义路由地址结构,使本地家庭网络上的节点可以建立通讯。 16. The method of home network wireless networking and communications according to claim 1, characterized in that the network layer to obtain an application layer packet unit and generates a network layer packet unit; the network layer using framing technique splits the data into a plurality of pack unit is transmitted to the media access control layer; the network layer is responsible for establishing a route which it is used between the source node and the destination node; the network layer defines the routing address structure of the node on the local home network may establish communications.
17.如权利要求16所述的家庭网络无线组网和通讯的方法,其特征在于,家庭网络中两个模块间进行数据交流时,发送模块网络层调用网络层数据发送基元;当发送端的网络层发送完要求命令,媒介访问控制层/物理层产生确信信息并且返回给网络层;当接收端得到数据,接收端的媒介访问控制层/物理层向其网络层汇报指示。 The method of the home network of wireless networking and communication as claimed in claim 16, wherein, when the home network for data exchange between two modules, the sending module network layer invoking the network layer data transmission primitive; when the transmitting end network layer sending the request command, layer / physical layer media access control generates believes that the information and return to the network layer; when the receiving end of data, the receiving side medium access control layer / physical layer indicates to report to the network layer.
18.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,网络层向应用层汇报:无线信道联接质量指示;网络拓扑联接;质量信息。 18. The method of home network wireless networking and communications according to claim 1, characterized in that the network layer to the application report layers: a radio channel connection quality indicator; topology coupled; quality information.
19.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,通信和应用层帧的格式化在应用层和网络层之间进行;使用者或设备可发送命令控制相连接模块的运作,包括:启动/关闭模块运作、设置模块操作频道、请求模块扫描所有运作频道并可在一个可用频道中工作。 The method of the home network of wireless networking and communication as claimed in claim 1, wherein the formatted communication and an application layer frames between the application layer and the network layer; user or device may send commands to control phase connecting operation module, comprising: a startup / shutdown module operation, the setting module the operation channel request module scans all active channels and operates one of the available channels.
20.如权利要求1所述的家庭网络无线组网和通讯的方法,其特征在于,设备和家庭网络相连方式包括:设备直接申请和家庭网络连接;网关注册确认相连接的设备;如果网关发现有设备未被注册,网关发送询问去查询未注册设备;设备和网络信息在网关,移动控制中心和设备之间的交换包括:申请下载设备文件,网关询问和设备连接的模块报道的设备信息;上载设备文件,设备给网关传递设备信息;申请下载设备注册表,移动控制中心要求网关提供连接信息;上载设备注册表,网关给移动控制中心发送连接信息;设备从家庭网络断开方式包括:设备询问与家庭网络断开;网关询问设备与家庭网络断开。 20. The method of a home network of wireless networking and communications according to claim 1, characterized in that the device and a home network connected mode comprising: a device directly applications and home network connection; Gateway Registration Acknowledgment connected devices; if the gateway is found there are equipment is not registered, the gateway sends an inquiry to query an unregistered device; device and network information exchange between the gateway, mobile control centers and equipment include: application download device file, device information module gateway inquiries and connected devices reported; upload device file, the device is transmitted to the gateway device information; application download device registry, a mobile control center claim gateway connection information; upload device registry, the gateway to the mobile control center transmits the connection information; device from the home network disconnection include: equipment ask disconnected from the home network; gateway interrogation device to the home network is disconnected.
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CN101820660A (en) * 2010-03-26 2010-09-01 上海桑锐电子科技有限公司 Self-networking method for wireless routing Internet of things
CN101841929A (en) * 2010-04-15 2010-09-22 顾翠红 Wireless control terminal of electrical appliance with networking capability
CN101867990A (en) * 2010-04-29 2010-10-20 顾翠红 Electrical equipment wireless control network with priority level
CN101867599A (en) * 2010-04-29 2010-10-20 顾翠红 Control method for wireless control network of electrical appliance
CN102332983A (en) * 2010-06-04 2012-01-25 美国博通公司 Method and system for utilizing a broadband gateway to provide energy efficient management in a home network
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WO2016058378A1 (en) * 2014-10-13 2016-04-21 中兴通讯股份有限公司 Method and apparatus for implementing networking of home area network and g.hn device

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