CN103166823B - Token passing method used in the family - Google Patents

Token passing method used in the family Download PDF

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CN103166823B
CN103166823B CN 201210186345 CN201210186345A CN103166823B CN 103166823 B CN103166823 B CN 103166823B CN 201210186345 CN201210186345 CN 201210186345 CN 201210186345 A CN201210186345 A CN 201210186345A CN 103166823 B CN103166823 B CN 103166823B
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CN103166823A (en )
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孙玉
刘桂君
齐鹏飞
孙毅
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广东广联电子科技有限公司
广州广联数字家庭产业技术研究院
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Abstract

本发明公开了一种应用于家庭的令牌传递方法,从节点ID分配帧中提取主节点为从节点分配的ID信息,主节点扫描最高优先级的队列,判断正在扫描的队列中,是否存在有效数据,若是,主节点发送下行数据帧;若否,主节点实现上行数据传输,当所有优先级的队列全部扫描完成后,重新从最高优先级的队列开始新一轮扫描。 The present invention discloses a method of token passing is used in homes, extracted from the master node as the node ID assignment frame from the node is assigned ID information, the master node scans the highest priority queue, the queue being scanned is determined whether there valid data, if the master node transmits downlink data frame; if not, the master node implements upstream data transmission, when all the priority queue to all the scanning is completed, a new scan restarts from the highest priority queue. 本发明采用主节点控制从节点的ID划分,按照从节点的ID和从节点的优先级来进行上行数据和下行数据的传递,从而能够实现6种业务和64个家庭业务终端的接入,并实现QoS的分类和流量控制。 The present invention employs a master node of the split node ID from the control according to the node ID and to transfer uplink data and downlink data from the priority level of the node, thereby enabling six kinds of services and home services access terminals 64 and implement QoS classification and flow control.

Description

应用于家庭的令牌传递方法 Token passing method used in the family

技术领域 FIELD

[0001] 本发明涉及令牌网络协议技术领域,具体涉及一种应用于家庭的令牌传递方法。 [0001] The present invention relates to a network token protocol technology, and in particular relates to a method of token passing is used in homes.

背景技术 Background technique

[0002] 电力线遍布城市和乡村,其覆盖面是任何网络无法比拟的,有利于电力线通信(PLC,Power Line Communication)网络的推广。 [0002] power lines throughout the cities and villages, its coverage is unmatched by any network, is conducive to the promotion of powerline communication (PLC, Power Line Communication) network. PLC通过电力线传输数据,不需要增设更多的线路及设备,只需将调制解调器插入电力插座就可以通信,使用简单,成本低廉,有利于信息资源共享和实现家电简便上网。 PLC data transmission over the power line, does not require the provision of more equipment and lines, the modem simply inserted into the power sockets can communicate, using a simple, low cost, and facilitate sharing of information resources to achieve simple Internet appliances. PLC除了施工中的明显优势之外,在总体价格上也存在优势。 PLC in addition to the construction of the obvious advantages, there are also on the overall price advantage. 随着市场的发展,以前相对比较高的电力线上网PLC价格在逐步的下降,目前PLC 在单线成本上与xDSL、电缆调制解调器相当了在速率上,电力线上网经过14Mbps、85Mbps, 目前已经迎来了200Mbps的时代。 With the development of the market, before the relatively high power line PLC prices gradually decline, the current PLC on-line costs and xDSL, cable modem quite at the rate of power line through 14Mbps, 85Mbps, has now ushered 200Mbps era. 200Mbps的带宽足以满足以后数字家庭的安全、教育、娱乐等要求,是数字家庭理想的骨干网络。 200Mbps bandwidth sufficient to meet the future digital home security, education, entertainment, etc., it is ideal for digital home backbone network.

[0003] 针对低压电力线的总线型以太网通信协议可以采用令牌网络协议技术。 [0003] Ethernet communications protocol for the bus low-voltage power line network protocol token technology may be employed.

[0004] 令牌总线网络协议是在物理总线上建立一个逻辑环。 [0004] The token bus network protocol is to establish a logical ring on a physical bus. 令牌总线网络传送数据必须按环路进行,令牌总线网络传送数据因有直接通路,故延迟时间短。 Token bus network data must be transmitted by a loop, token bus network due to a direct data transfer path, so that the delay time is short. 令牌总线环网和争用总线网相比,在负载轻时,开销都随网络的通信量增加而增加。 Compared ring and token bus contention bus network, when the load is light, with all the overhead network traffic increases. 由于重载时,令牌总线网传送标记的时间为常数,而争用总线网冲突增加,系统开销随之增大,系统效率迅速下降。 Due to heavy load, token bus network transmission marker to constant, increasing the contention and bus conflict network, overhead increases, the system efficiency drops rapidly. 由于站点接收到令牌的过程是顺序的,因此对所有站点都有公平访问权,令牌总线网具有无冲突和重负载下利用率高的优点,在正常操作时十分简单,被广泛用于有实时应用要求的控制系统中。 Since the station receives the token is the order of the process, and therefore have a fair access, token bus network with no conflicts, and high utilization of all the advantages of a heavy load at the site, during normal operation is very simple, it is widely used real-time application requirements of the control system.

[0005] 在数字家庭网络,存在多种业务,例如:电话、上网、医疗、安防等,每个业务可能有多个终端,为了实现服务质量(QOS,Quality of Service)保障,本发明人提出了一种应用于家庭的逻辑令牌协议。 [0005] In the digital home network, there are a variety of services such as: telephone, Internet, medical, security, etc., each business may have multiple terminals, in order to achieve quality of service (QOS, Quality of Service) protection, the present invention provides a logical token protocol used in homes.

发明内容 SUMMARY

[0006] 本发明实施例提供一种应用于家庭的令牌传递方法。 Embodiment [0006] The present invention provides a method of token passing is used in homes.

[0007] -种应用于家庭的令牌传递方法,包括:任一从节点上电后向主节点发送节点ID 申请帧; [0007] - Species applied family token passing method, comprising: any one of the power application from the node to the master node transmits a frame node ID;

[0008] 所述主节点收到所述节点ID申请帧后,所述主节点向所述从节点发送节点ID分配帧,所述节点ID分配帧携带MC域信息和为所述从节点分配的ID信息; After [0008] the master node receives the node ID of the application frame, the master node to the node ID assignment frame transmitted from the node ID assignment frame carries MC and the domain information from a node assigned to the ID information;

[0009] 所述从节点接收到所述主节点发送的所述节点ID分配帧后,获取所述节点ID分配帧携带的MAC域信息,将所述MAC域信息与所述从节点的MAC信息相匹配,如果所述MAC 域信息与所述从节点自身的MC信息相匹配,所述从节点从所述节点ID分配帧中提取所述主节点为所述从节点分配的ID信息; [0009] received from the node to the master node after the node ID assignment frame, obtain domain information of the MAC frame carries the node ID assignment, the domain information to the MAC MAC information from the node match, if the MAC field information with the node itself from the MC information matches the extracted node ID assignment frame from the node from the master node is the node ID information allocated from;

[0010] 所述主节点扫描最高优先级的队列,所述队列由从节点构成,判断正在扫描的队列中,是否存在有效数据,若是,所述主节点向队列中存在有效数据的从节点发送下行数据帧;若否,所述主节点向正在扫描的从节点发送发送数据控制帧,询问所述正在扫描的从节点是否需要发送数据; [0010] The master node scans the highest priority queue, the queue is constituted by a node, it determines the queue is scanned, whether there is valid data, if the presence of valid data in the master node transmitted from the node to the queue downlink data frame; if not, the master node controlling data transmission frame, said interrogation being scanned whether transmission data from node to node is transmitted from the scan;

[0011] 所有从节点监听线路,当任一所述正在扫描的从节点收到所述发送数据控制帧后,从所述发送数据控制帧中获取ID信息,将从所述发送数据控制帧中获取的ID信息与所述任一所述正在扫描的从节点自身的ID值相匹配,若匹配,则所述任一所述正在扫描的从节点向所述主节点发送发送数据控制应答帧来进行响应; [0011] In all, the transmission data control when any one of the frame received from the node being scanned, acquires the ID information from the transmission data frame from the control node monitor the line, the transmission data from the control frame acquiring the ID information from any node itself matches the ID value being a scan, if match, the sending node from any of said master node to the transmitting data is being scanned to a control response frame respond;

[0012] 所述主节点接收到所述发送数据控制应答帧之后,所述任一所述正在扫描的从节点发送上行数据帧; After [0012] the master node receives the transmission data control response frame, according to any one of the node being scanned from sending uplink data frame;

[0013] 所述主节点判断目前扫描的队列是否为最低优先级,若是,所述主节点重新从最高优先级的队列开始新一轮扫描;若否,所述主节点再扫描下一优先级的队列,当所有优先级的队列全部扫描完成后,重新从最高优先级的队列开始新一轮扫描。 [0013] the master node determines whether the current scan is the lowest priority queue, if the master node start a scan from the highest priority queue; if not, the master node re-scan the next priority queue when all priority queues are scanned, re-start a new round of scans from the highest priority queue.

[0014] 本发明实施例采用主节点控制从节点的ID划分,按照从节点的ID和从节点的优先级来进行上行数据和下行数据的传递,从而能够实现6种业务和64个家庭业务终端的接入,并实现QoS的分类和流量控制。 [0014] Example use of the master node to control the ID division nodes, according to node ID and transmitting to the uplink data and downlink data from the priority nodes from, thereby enabling six kinds of business and 64 families service terminal according to the present invention access, and implement QoS classification and flow control.

附图说明 BRIEF DESCRIPTION

[0015] 图1是ID分配的流程图; [0015] FIG. 1 is a flow ID assigned;

[0016] 图2是主节点获取为从节点分配的ID信息的流程图; [0016] FIG 2 is a flowchart of the ID information is assigned from the master node acquires the node;

[0017] 图3是主节点的队列结构示意图; [0017] FIG. 3 is a schematic diagram of the master node queue structure;

[0018] 图4是队列处理过程流程图。 [0018] FIG. 4 is a flowchart of the process queue.

具体实施方式 Detailed ways

[0019] 本发明实施例提供一种应用于家庭的令牌传递方法,以下进行详细说明。 Token passing method of embodiment [0019] The present invention provides a family applied, described in detail below.

[0020] 在本令牌传递方法中,每个从节点自身拥有一个优先级,MAC地址全球唯一,生产设备时确定,优先级根据业务类型确定默认值,并且用户可设置,主节点优先级固定为〇。 [0020] In the token passing method, each node has its own from a priority, MAC address globally unique, the production equipment is determined, priority determination value according to a default service type, and the user can set the master node is fixed priority for the square. 需要说明的是,在数字家庭网络中,主节点为家庭网关,从节点为家庭内部各种与家庭网关相连的应用终端,例如:计算机、电话机、电视机、游戏机、安防设备、抄表集抄器等。 Note that, in a digital home network, the master node to the home gateway node within the home from the various applications and the terminals connected to the home gateway, for example: a computer, telephone, television, game machine, security equipment, meter reading meter reading and the like.

[0021] 本令牌传递方法可以实现由家庭网关控制的从节点的标识(ID,IDentity)划分; 实现6种业务(最多可扩展为16种业务)和64个家庭业务终端的接入;实现QoS的分类和流量控制。 [0021] The present method can be implemented to control token passing by the home gateway nodes divided from the identification (ID, IDentity); six kinds of services implemented (expandable up to 16 kinds of service) and 64 accessing a home service terminal; implemented QoS classification and flow control.

[0022] 将不同的业务类型映射为不同的优先级,最多支持16个优先级,也就是是16种业务。 [0022] The different business types are mapped to different priority, it supports up to 16 priority levels, that is 16 kinds of business. 在本实施例中,0为优先级最尚,15为优先级最低,定义的六种业务,对应的优先级登记分别为:电视业务对应的优先级为2、电话业务对应的优先级为4、安防业务对应的优先级为6、抄表业务对应的优先级为8、游戏业务对应的优先级为10、上网业务对应的优先级为15。 In the present embodiment, priority 0 is still the best, 15 is the lowest priority, defined six service, the priority of the corresponding register are: priority 2 for the corresponding television service, telephone service priorities corresponding to 4 , corresponding to the priority of the security service to 6, corresponding to the service priority level meter 8, the game service corresponding to the priority of 10, priority Internet access service corresponding to 15.

[0023] 在本实施例中,所采用的帧格式如下表所示, [0023] In the present embodiment, the frame format used in the following table,

[0024] [0024]

Figure CN103166823BD00051

[0025] 其中, [0025] wherein,

Figure CN103166823BD00061

[0026] (1)帧头域用1个字节表示,固定为0x7E。 [0026] (1) header fields represented by 1 byte, fixed at 0x7E. 在帧内数据域部分,封装时如果遇到0x7E需要转换为0x7D 0x5E,如果遇到0x7D需要转换为0x7D 0x5E ;解封装时进行反向操作。 Data field within the frame part, when the package if they need to convert to 0x7E 0x7D 0x5E, if they need to convert 0x7D 0x7D 0x5E; decapsulated reverse operation.

[0027] (2) ID域用1个字节表示,用于标识用户地址,目前设计支持64个用户。 [0027] (2) ID field is represented by 1 byte, for identifying the user address, current design supports 64 users.

[0028] (3)类型域用1个字节表示,最多可定义256种帧类型。 [0028] (3) type field is represented by 1 byte, a maximum of 256 kinds of frame types may be defined.

[0029] 目前设计了6种类型的帧,其名称和作用分别为: [0029] The current design six types of frames, the name and role are:

[0030] 节点ID申请帧:用于从节点向主节点申请从节点ID ; [0030] Node ID request frame: a slave node to the master node a node ID from the application;

[0031] 节点ID分配帧:用于主节点向从节点分配从节点ID ; [0031] The node ID assignment frame: a master node to the slave node from the node ID assigned;

[0032] 发送数据控制帧:用于主节点控制从节点发送数据; [0032] The transmission data control frame: means for transmitting data from the master node to control node;

[0033] 发送数据控制应答帧:用于响应"发送数据控制帧"; [0033] The transmission data control response frame: in response to "the transmission data control frame";

[0034] 下行数据帧:用于传输主节点至从节点的数据; [0034] The downlink data frame: means for transmitting data from the master node to the node;

[0035] 上行数据帧:用于传输从节点至主节点的数据。 [0035] The uplink data frame: means for transmitting data from node to the master node.

[0036] (4)就数据域而言,本令牌传递承载于以太网之上,以太网层采用RFC 894定义的封装格式,净荷数据长度最大为1500字节,在本实施例中,净荷数据长度最大值记为Lmax, Lmax =以太网净荷数据长度最大值-帧头域长度-类型域长度-ID域长度-校验域长度= 1500字节-1字节-1字节-1字节-1字节=1496字节,即在本实施例中,净荷数据长度最大值为1496字节。 [0036] (4) in terms of data fields, the present token passing carried over Ethernet, Ethernet layer using encapsulation format defined by RFC 894, the maximum length of the payload data is 1500 bytes, in the present embodiment, the maximum length of the payload data denoted Lmax, Lmax = maximum Ethernet payload data length - the length of the header field - the length field type field length -ID - check field length bytes = 1500 bytes -1 -1 bytes -1 -1 byte byte = 1496 bytes, i.e., in the present embodiment, the maximum length of the payload data is 1496 bytes.

[0037] 当物理层提供50Mbps的带宽时,传送一帧长度为1518字节以太网帧时间记为tmax,tmax =帧长/带宽=(1518字节X8)/50兆位每秒=243X10-6秒,即传送1518字节帧仅需243微秒。 [0037] When the physical layer provides a bandwidth of 50Mbps, a transmission frame length Ethernet frame is 1518 bytes referred to time tmax, tmax = frame length / bandwidth = (1518 bytes X8) / 50 megabits per second = 243X10- 6 seconds, i.e., 1518 byte frame transmission only 243 microseconds.

[0038] 如果主节点对从节点的问询周期中,从节点每次只发送一帧数据帧,假设"上行数据帧"帧长是最大值1500字节,则轮询一个周期耗时最大,"发送数据控制帧"和"发送数据控制应答帧"帧长都是5字节,此时在64个用户数情况下,所有用户全部轮询一遍的时间记为t,则t =用户数X (传送最长帧时间+发送数据控制帧时间+发送数据控制应答帧时间)=64X [243X 10-6秒+(5字节X8)/50兆位每秒+(5字节X8)/50兆位每秒]= 15. 65晕秒。 [0038] If the inquiry from the master node cycle nodes, each node transmitted from only a data frame, if "uplink data frame" the maximum frame length is 1500 bytes, the maximum time-consuming polling cycle, "data transmission control frame" and "transmission data control response frame" frame length is 5 bytes, in this case 64 the number of users, all users all over the polling period of time referred to as t, t = the number of users X (maximum frame transmission time + data control frame transmission time + response control data transmission frame time) = 64X [243X 10-6 sec + (5 bytes X8) / + 50 megabit (5 bytes X8) per second / 50 megabits per second] = 15.65 halo seconds.

[0039] 根据ETSI统计,话音数据最大延时为20毫秒、游戏最大延时为20毫秒、音频视频流最大延时为100毫秒,其他业务延时基本上在200毫秒左右。 [0039] The ETSI statistics, the maximum delay of voice data is 20 milliseconds, a maximum delay of 20 msec games, audio video stream a maximum delay of 100 ms, delay other operations substantially about 200 milliseconds.

[0040] 为了降低各业务时延先选择帧长为500字节,时延为5. 2ms。 [0040] In order to reduce the operational delay of the first frame length of 500 bytes selected, delay of 5. 2ms.

[0041] (5)校验域用1个字节表示,采用CRC8校验和。 [0041] (5) check field represented by one byte, using CRC8 checksum.

[0042] 如前所述,本令牌传递方法目前设计了六种帧类型,具体为:节点ID申请帧、节点ID分配帧、发送数据控制、发送数据控制应答帧、下行数据帧、和上行数据帧,具体描述如下: [0042] As described above, the present method of token passing current design six frame type, specifically: a frame application node ID, node ID assignment frame, transmission control data, the transmission data control response frame, downlink data frame, and the uplink data frames, is described as follows:

[0043] (1)节点ID申请帧的帧类型域为0x02,节点ID申请帧的帧格式为: [0043] (1) Application Node ID field of the frame of frame type 0x02, the node ID of the application frame frame format:

[0044] [0044]

Figure CN103166823BD00071

[0045] 其中ID域用于填写主节点ID ;MAC(Media Access Control)域用于填写从节点自身MAC值;优先级域用于填写从节点自身优先级值; [0045] wherein the ID field is used to fill the master node ID; MAC (Media Access Control) field is used to fill the MAC value from the node itself; priority field is used to fill their priority value from the node;

[0046] 节点ID申请帧由从节点发送至主节点,需要主节点响应,用于从节点向主节点申请从节点ID。 [0046] Node ID request response frame transmitted by the slave node to the master node, the master node need for the application from the node to the master node from the node ID.

[0047] (2)节点ID分配帧的类型域为0x03,节点ID分配帧的帧格式为: [0047] (2) the node ID assignment frame type field is 0x03, the frame format is the node ID assignment frame:

[0048] [0048]

Figure CN103166823BD00072

[0049] 其中,ID域一用于填写主节点ID ;MAC域用于填写目标从节点MAC值;ID域二用于填写为目标从节点分配的ID值。 [0049] wherein, the domain ID is used to fill a master node ID; MAC field is used to fill the MAC value from the target node; ID field is used to fill two assigned ID value from the target node. 节点ID分配帧由主节点发送至从节点,不需要从节点响应,用于主节点向从节点分配从节点ID。 Node ID assignment frame transmitted by the master node to the slave node does not require a response from the node, the master node to the slave node for dispensing from the node ID.

[0050] (3)发送数据控制帧的类型域为0x04,发送数据控制帧的帧格式为: [0050] (3) the transmission data control frame type field is 0x04, the transmission data control frame of frame format:

[0051] [0051]

Figure CN103166823BD00073

[0052] 其中,ID域用于填写目标从节点ID 当处于是否需要发送数据的状态时,控制命令域填写0x00,当处于停止发送数据的状态时,控制命令域填写0x01。 [0052] wherein, for completing the ID field from the target node ID in the state when the need for transmitting data, control command field fill 0x00, when in the state to stop sending data, the control command field filled 0x01.

[0053] 发送数据控制帧作用由主节点发送至从节点,需要从节点响应,用于主节点控制从节点发送数据。 [0053] The effect of the transmission data control frame transmitted by the master node to the slave node, the response required from the node, the master node for controlling the transmission of data from the node.

[0054] (4)发送数据控制应答帧的类型域为0x05,发送数据控制应答帧的帧格式为: [0054] (4) the transmission data control response frame type field is 0x05, the transmission data control response frame is a frame format:

[0055] [0055]

Figure CN103166823BD00074

[0056] 其中ID域用于填写主节点ID ;当处于需要发送数据的状态时,控制命令域填写0x00,当处于不需要发送数据的状态时,控制命令域填写0x01。 [0056] wherein the master node ID field is used to fill ID; state when data needs to be sent, fill 0x00 control command field, when the state is not required to transmit data, a control command field filled 0x01.

[0057] 发送数据控制应答帧由从节点发送至主节点,不需要主节点响应。 [0057] The transmission data control response frame transmitted by the slave node to the master node, the master node does not need to respond. 发送数据控制应答帧用于从节点响应"发送数据控制帧"。 A control response frame for transmission data "transmission data control frame" response from the node.

[0058] (5)下行数据帧的类型域为0x06,下行数据帧的帧格式为: [0058] The type field (5) for the downlink data frame 0x06, downlink data frame is a frame format:

[0059] [0059]

Figure CN103166823BD00075

Figure CN103166823BD00081

[0060] 其中,ID域用于填写主节点ID ;下行数据帧由主节点发送至从节点,不需要从节点响应。 [0060] wherein, the domain ID is used to fill the primary node ID; downlink data frame transmitted by the master node to the slave node, no response is required from the node. 下行数据帧用于主节点向从节点发送数据。 Downlink data frame for transmitting data to the master node from the node.

[0061] (6)上行数据帧的类型域为0x07,上行数据帧的帧格式为; [0061] The type field (6) an uplink data frame is 0x07, the uplink data frame is a frame format;

[0062] [0062]

Figure CN103166823BD00082

[0063] 其中,ID域用于填写主节点ID ;上行数据帧由从节点发送至主节点,不需要主节点响应。 [0063] wherein, the domain ID is used to fill the primary node ID; uplink data frame transmitted by the slave node to the master node, the master node does not need to respond. 上行数据帧用于从节点向主节点发送数据。 Uplink data frame for transmitting data from node to the master node.

[0064] 参见图1,下面将就主节点对从节点的ID分配流程、主节点和从节点之间的下行数据处理流程、主节点和从节点之间的上行数据传输流程进行详细描述。 [0064] Referring to Figure 1, the following will master node from the node ID assignment process, and the master node, the master node and the detailed description of the flow of uplink data transmission between nodes from the downlink data flow between the processing nodes.

[0065] 1)主节点对从节点的ID分配流程 [0065] 1) of the master node from the node ID assignment process

[0066] 101、任一从节点上电后向主节点发送节点ID申请帧。 [0066] 101, any power from a node to the master node transmits the application node ID of the frame.

[0067] 102、主节点收到节点ID申请帧后,主节点向该从节点发送节点ID分配帧,该节点ID分配帧携带MAC域信息和为该从节点分配的ID信息。 [0067] 102, the node ID of the master node receives the request frame, the master node to the node ID assignment frame from the sending node, the node ID assigned MAC frame carries the ID information and the domain information from the node assigned for.

[0068] 103、该从节点接收到主节点发送的节点ID分配帧后,获取该节点ID分配帧携带的MAC域信息, [0068] 103, after receiving from the node to node ID assignment frame from the master node, obtain domain information of the MAC frame carries the node ID assignment,

[0069] 104、如果该节点ID分配帧携带的MAC域信息与从节点自身的MAC信息相匹配,该从节点从该节点ID分配帧中提取主节点为从节点N分配的ID信息。 [0069] 104, if the node ID assigned MAC domain information carried in the frame matches its own MAC information from the node, the master node extracts the node ID assignment frame from the node assigned to the ID information from the node N.

[0070] 2)主节点和从节点之间的下行数据处理流程和上行数据处理流程 [0070] 2) data from the master node and the downlink data between the nodes and the processing flow Upstream process

[0071] 对于下行数据(主节点到从节点的控制帧和数据帧)采用广播的方式传输,对于上行数据(从节点到主节点的控制帧和数据帧)采用单播的方式传输。 [0071] For downlink data (from the master node to the control node and data frames) by way of broadcast transmission, data for the uplink (from the control node to the master node and data frames) by way of unicast transmission.

[0072] 在主节点内根据业务类型(优先级)将所有的从节点建立成相应数量的队列,主节点的队列结构示意如图2所示。 [0072] (priority level) all established as a corresponding number of queues, the master node from the master node according to the type of service node queue structure schematically shown in Fig. 下行数据根据业务类型依次存储在相应队列中。 Downlink data sequentially stored in the corresponding queue according to the service type. 主节点按优先级从高到低顺序依次扫描各队列,当高优先级队列处理完成后,再扫描下一优先级队列。 The master node in descending order of priority of each queue are sequentially scanned, when the process is completed the high priority queue, then scanning the next priority queue. 当所有优先级的队列全部扫描完成后,重新从最高优先级队列开始新一轮扫描。 When all priority queues are scanned, re-start a new round of scans from the highest priority queue.

[0073] 可选的,在扫描开始时,开启定时器,当定时器t (目前定义为20毫秒)时间到达时,本次扫描结束,重新从最高优先级扫描。 [0073] Alternatively, when the scan is started, a timer is started when the timer T (currently defined as 20 ms) time is reached, the end of the scan cycle, the highest priority from the re-scan. 本机制用于保证在带宽不足时,高优先级业务的实行。 This mechanism is used to ensure that the bandwidth is insufficient, the implementation of high-priority traffic.

[0074] 队列处理过程包括:上行数据和下行数据处理。 [0074] The queue process comprising: uplink data and downlink data processing.

[0075] 对于队列内的下行数据直接进行发送,直到队列内不再包含有效数据;依次问询对应优先级的节点,实现上行数据传输。 [0075] For downlink data transmission in the direct queue until the queue is no longer contain valid data; sequentially queries the corresponding priority node, implemented uplink data transmission.

[0076] 主节点的队列处理过程流程如下所示: Queue processing flow [0076] the master node is as follows:

[0077] 105、主节点扫描最高优先级的队列; [0077] 105, the master node scans the highest priority queue;

[0078] 106、判断正在扫描的队列中,是否存在有效数据,若是,执行步骤107,若否,执行步骤108 ; [0078] 106, the queue being scanned is determined whether there is valid data, if yes, perform step 107, otherwise, go to step 108;

[0079] 107、正在扫描的队列中,存在有效数据,主节点向存在有效数据的从节点发送下行数据帧; [0079] 107, the queue is scanned, the presence of valid data, the master node sends the downlink data from valid data frame;

[0080] 108、正在扫描的队列中,不存在有效数据,主节点对正在扫描的从节点进行轮询, 进行上行数据传输; [0080] 108, the queue is scanned, there is no valid data, the master node polls the node being scanned, the uplink data transmission;

[0081] 109、在步骤108之后,主节点判断目前扫描的队列是否为最低优先级,若是,执行步骤105,若否,执行步骤110 ; [0081] 109, after step 108, the master node determines whether the current scan is the lowest priority queue, if yes, step 105 is executed, otherwise, step 110 is performed;

[0082] 110、目前扫描的队列不是最低优先级,主节点再扫描下一优先级队列。 [0082] 110, the queue is not the lowest priority, the master node of the current scan then scan the next priority queue. 当所有优先级的队列全部扫描完成后,重新从最高优先级队列开始新一轮扫描。 When all priority queues are scanned, re-start a new round of scans from the highest priority queue.

[0083] 在步骤102中,主节点发送的节点ID分配帧中的ID域包含了主节点为从节点分配的ID信息,主节点自身要先获取为从节点分配的ID信息。 [0083] In step 102, the node ID assignment frame from the master node ID field contains the master node is assigned a node ID information from the master node itself is the first acquires the ID information from the node assigned. 参见图3,主节点获取为从节点分配的ID信息的过程如下: Referring to Figure 3, the master node acquires ID information from a node assigned as follows:

[0084] 主节点的ID信息为0x00,在主节点维护ID信息表,ID信息表以ID为主键从小到大存储信息项。 ID information [0084] The master node is 0x00, in the master node maintains information table ID, the ID information ID as the primary key table to store items of information from small to large. 从节点的ID共有8bit,高四位由从节点优先级确定,低四位从0开始依次分配。 8bit node ID from the total, four high priority determination nodes from the lower four bits are assigned sequentially starting from the 0.

[0085] 201、当主节点接收到节点ID申请帧后,从节点ID申请帧中提取优先级值; [0085] 201, when the master node receives the request frame to the node ID, extracts the node ID value from the priority application frame;

[0086] 202、在ID信息表中查找是否存在ID高四位是该优先级值的表项,若ID信息表中不存在ID高四位是该优先级值的表项,执行步骤203 ;若ID信息表中存在ID高四位是该优先级值的表项,执行步骤204 ; [0086] 202, to find whether there is the ID information ID table entries that are four high priority values, if the table ID information ID does not exist in the upper four bits of the entry is the priority value, step 203 is performed; If the ID information ID exists in the table entry is the upper four bits of the priority value, step 204;

[0087] 203、ID信息表中不存在ID高四位是该优先级值的表项,主节点在ID信息表中增加ID表项,新增加的ID表项高四位为该优先级值,低四位为0 ; [0087] 203, ID information table does not exist in the high ID of the entry is a four priority values, increasing the master node ID entry in the ID information table, the newly added entry ID for the four high priority value The lower four bits is 0;

[0088] 204、ID信息表中存在ID高四位是该优先级值的表项,判断该表项的低四位数值最大者是否等于15,若不等于15,执行步骤205,若等于15,执行步骤206 ; [0088] 204, ID information table, there is a high entry ID that is four priority values, is determined by the maximum value of the lower four bits of the entry 15 is equal to, if not equal to 15, step 205 is executed, if equal to 15 , step 206 is executed;

[0089] 205、该表项的低四位数值最大者不等于15,主节点在ID信息表中增加ID表项,新增加的ID表项高四位为该优先级值,低四位为前述的该表项的低四位数字最大者; [0089] 205, the maximum value of the lower four bits of the entry are not equal to 15, to increase the master node ID entry in the ID information table, the newly added entry ID for the four high priority value, the lower four bits the lower four digits of the maximum of the entry;

[0090] 206、该表项的低四位数值最大者等于15,将节点ID申请帧中提取出的优先级值更新为加一后的值; [0090] 206, the value of the lower four bits are equal to the maximum entry 15, the node ID of the application frame extracted priority value updated after a value is added;

[0091] 207、在步骤206后,再判断更新后的优先级值是否等于15,若不等于15,则重新执行步骤202,及步骤202以后的步骤;若等于15,则执行步骤208 ; [0091] 207, after step 206, and then determines whether the updated priority value is equal to 15, if not equal to 15, step 202 is executed again, a step 202 and the subsequent steps; if equal to 15, step 208 is executed;

[0092] 208、更新后的优先级值等于15,主节点进行异常处理。 [0092] 208, the updated priority value is equal to 15, the master node for exception handling.

[0093] 具体的,假设主节点从节点ID申请帧中提取出的从节点1的优先级为2,则从节点1的ID高四位为2。 [0093] Specifically, assuming the master node a node ID extracted from request frame from a node in the priority 2, 1 from the node ID of the four high-2. 主节点检索ID信息表,查找到ID高四位为2的表项,该表项ID低四位数值最大者为m。 The master node retrieves the ID information table, the lookup table entry for the four high ID of 2, the entry value of the maximum of four low-ID is m. 主节点判断m是否等于15,若m等于15,将主节点从节点ID申请帧中提取出的优先级值更新为加一后的值,得到ml,ml = 2+1 = 3,再判断ml是否等于15,若ml不等于15,主节点检索ID信息表,查找到ID高四位为3的表项,该ID高四位为3的表项中的ID低四位数值最大者为m2,如果m2不等于15,主节点在ID信息表中添加表项,新添加的表项的高四位为ml,低四位为m2+l。 The master node determines whether or not m is equal to 15, if m is equal to 15, the master node extracted from the node ID of the application frame priority value is updated to a value of plus one, to give ml, ml = 2 + 1 = 3, then determines ml 15 is equal to, if not equal to 15 ml, the master node retrieves the ID information table, the lookup table entry for the four high ID of 3, the high four bits of the ID table ID entry 3 in the lower four bits of greatest value m2 If m2 is not equal to 15, the master node is added in the ID information entry table, the upper four bits of the newly added entry ml, and the lower four bits m2 + l.

[0094] 参见图4,在步骤108中,当正在扫描的队列中不存在有效数据时,主节点对正在扫描的从节点进行轮询,实现上行数据传输,具体为: [0094] Referring to FIG 4, in step 108, when the valid data does not exist in the queue being scanned, is scanned for the master node to slave node polls both the upstream data transmission, in particular:

[0095] 301、主节点向正在扫描的从节点发送发送数据控制帧,询问从节点是否需要发送数据; [0095] 301, the master node control frame to the transmission data transmitted from the node being scanned, asking if the node needs to transmit data;

[0096] 302、所有从节点监听线路,任一正在扫描的从节点收到发送数据控制帧后,从发送数据控制帧中获取ID信息,将该ID信息与自身的ID值相匹配。 [0096] 302, all nodes monitor the line from any of the latter being scanned transmission data is received from the node control frame, acquires the ID information from the transmission data control frame, and the ID information matches the ID value itself.

[0097] 303、若匹配,则向主节点发送发送数据控制应答帧来进行响应; [0097] 303, if the match is sent to the master node transmits the data in response to a control response frame is performed;

[0098] 304、主节点接收到发送数据控制应答帧之后,与之响应的从节点发送上行数据帧。 [0098] 304, the master node receives the transmission data after the control response frame, in response thereto transmits the uplink data frames from the node.

[0099] 可选的,主节点每次对从节点轮询时,允许向从节点发送多帧发送数据控制帧。 [0099] Alternatively, the master node transmits a plurality of frames each transmitted frame control data from node to node from the polling, allowed to.

[0100] 可选的,在上行数据传输过程中,一旦定时器到时,则主节点向从节点发送"发送数据控制帧",命令从节点立即结束数据传输。 [0100] Alternatively, the uplink data transmission procedure, once the timer, the master node from the node sends a "transmission data control frame", the data transfer end command from the node immediately.

[0101] 本发明实施例采用主节点控制从节点的ID划分,按照从节点的ID和从节点的优先级来进行上行数据和下行数据的传递,从而能够实现6种业务和64个家庭业务终端的接入,并实现QoS的分类和流量控制。 [0101] Example use of the master node to control the ID division nodes, according to node ID and transmitting to the uplink data and downlink data from the priority nodes from, thereby enabling six kinds of business and 64 families service terminal according to the present invention access, and implement QoS classification and flow control.

[0102] 本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于一计算机可读存储介质中,存储介质可以包括:ROM、RAM、磁盘或光盘等。 [0102] Those of ordinary skill in the art can appreciate that various embodiments of the method of the above-described embodiments all or part of the steps may be relevant hardware instructed by a program, the program may be stored in a computer-readable storage medium, the storage medium It may include: ROM, RAM, magnetic disk, or optical disk.

[0103] 以上对本发明实施例所提供的应用于家庭的令牌传递方法进行了详细介绍,本文中应用了具体个例对本发明的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想;同时,对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。 [0103] The above embodiments provide a method of token passing is used in the family described in detail embodiments of the present invention described herein through specific examples of the principles and embodiments of the invention are set forth in the above described embodiment except for help understand the method and core ideas of the present invention; the same time, for those of ordinary skill in the art, according to the idea of ​​the present invention, there are changes in the specific embodiments and application scope of the place, of the specification content It should not be construed as limiting the present invention.

Claims (9)

1. 一种应用于家庭的令牌传递方法,其特征在于,包括: 任一从节点上电后向主节点发送节点ID申请帧; 所述主节点收到所述节点ID申请帧后,所述主节点向所述从节点发送节点ID分配帧, 所述节点ID分配帧携带MAC域信息和为所述从节点分配的ID信息; 所述从节点接收到所述主节点发送的所述节点ID分配帧后,获取所述节点ID分配帧携带的MAC域信息,将所述MAC域信息与所述从节点的MAC信息相匹配,如果所述MAC域信息与所述从节点自身的MAC信息相匹配,所述从节点从所述节点ID分配帧中提取所述主节点为所述从节点分配的ID信息; 所述主节点扫描最高优先级的队列,所述队列由从节点构成,判断正在扫描的队列中, 是否存在有效数据,若是,所述主节点向队列中存在有效数据的从节点发送下行数据帧;若否,所述主节点向正在扫描的从节点发送发送数 A token passing method is applied to family, characterized by comprising: any one of the power from the node to the master node transmits the node ID request frame; after the master node receives the node ID of the application frame, the the receiving node from the node to the master node; said master node to the node ID assignment frame from the sending node, the node ID assigned MAC frame carries the ID information and the domain information from the node assigned after the ID assignment frame, obtain domain information of the MAC frame carries the node ID assignment, the MAC field matches the information with the MAC information from the node, if the MAC information with the MAC field information from the node itself match, the node is extracted from the node ID assignment frame from said master node to the slave node ID information assigned; scanning the master node a highest priority queue, the queue is constituted by a node, determines scanning the queues, whether there is valid data, if the master node to a queue of valid data in a data frame transmitted from a downlink node; if not, the master node being scanned from the node to transmit the transmission number 控制帧,询问所述正在扫描的从节点是否需要发送数据; 所有从节点监听线路,当任一所述正在扫描的从节点收到所述发送数据控制帧后,从所述发送数据控制帧中获取ID信息,将从所述发送数据控制帧中获取的ID信息与所述任一所述正在扫描的从节点自身的ID值相匹配,若匹配,则所述任一所述正在扫描的从节点向所述主节点发送发送数据控制应答帧来进行响应; 所述主节点接收到所述发送数据控制应答帧之后,所述任一所述正在扫描的从节点发送上行数据帧; 所述主节点判断目前扫描的队列是否为最低优先级,若是,所述主节点重新从最高优先级的队列开始新一轮扫描;若否,所述主节点再扫描下一优先级的队列,当所有优先级的队列全部扫描完成后,重新从最高优先级的队列开始新一轮扫描。 Control frame, the inquiry is whether to send scanned data from node; from all nodes monitoring the line being scanned when any of the received control frame to the transmission data, the transmission data from the control frame from the node acquiring the ID information, the transmission data from the control frame and the acquired ID information matches any of the ID value of the node itself is a scan, if the matching is being scanned from any of the said one node sends the master node transmits the data in response to a control response frame is performed; the master node receives the transmission data after the control response frame, the scanning being any one of an uplink data frame from the transmission node; the main node determines whether the current scan is the lowest priority queue, if the master node re-start a new scan from the highest priority queue; if not, the master node then scan the next priority queue, when all priority after the queues are scanned level of completion, start a new round of scans from the highest priority queue.
2. 根据权利要求1所述的令牌传递方法,其特征在于,所述主节点的ID信息为0x00, 在所述主节点维护ID信息表,所述ID信息表以ID为主键从小到大存储信息项,所述从节点的ID共有8bit,所述从节点的ID的高四位由所述从节点的优先级确定,所述从节点的ID的低四位从0开始依次分配, 所述主节点收到所述节点ID申请帧后,所述主节点向所述从节点发送节点ID分配帧, 所述节点ID分配帧携带MAC域信息和为所述从节点分配的ID信息的步骤,具体为: 当所述主节点接收到所述节点ID申请帧后,从所述节点ID申请帧中提取优先级值; 所述主节点在所述ID信息表中查找是否存在ID高四位是所述优先级值的表项; 若所述ID信息表中不存在ID高四位是所述优先级值的表项,所述主节点在所述ID信息表中增加ID表项,新增加的ID表项高四位为所述优先级值,低四位为0 ; 若所述I 2. The token passing method of claim 1, wherein the master node ID information is 0x00, in the master node table maintains information ID, the ID information ID table to the primary key ascending storing information items, the, the, the ID assigned sequentially from the shared node from the high four 8bit node ID by the priority determination nodes from the lower four bits from the start node ID 0, the step later master node receives the node ID of the application frame, the master node to the node ID assignment frame from the sending node, the node ID assigned MAC frame carries the ID information and the domain information from the node assigned specifically: when the master node receives the request frame to the node ID, the priority value extracted from the node ID of the application frame; the master node ID to find out whether there is a high four bits in the ID information table It is the priority value entry; if the ID does not exist in the information table ID entry is the upper four bits of the priority value, increasing the master node ID entry in the ID information table, the new ID entry added to the four high priority value, the lower four bits 0; if the I D信息表中存在ID高四位是所述优先级值的表项,判断所述ID高四位是所述优先级值的表项的低四位数值最大者是否等于15 ; 若不等于15,所述主节点在所述ID信息表中增加ID表项,新增加的ID表项高四位为所述优先级值,低四位为所述ID高四位是所述优先级值的表项的低四位数值最大者; 若等于15,所述主节点将从所述节点ID申请帧中提取出的优先级值更新为加一后的值;再判断更新后的优先级值是否等于15,若不等于15,所述主节点在所述ID信息表中重新查找是否存在ID高四位是所述更新后的优先级值的表项,若等于15,主节点进行异常处理; 所述主节点向所述从节点发送节点ID分配帧,所述节点ID分配帧携带MAC域信息和为所述从节点分配的ID信息。 D information table is present in the four high-ID entry of the priority value, determining the four high-ID value is the maximum of the low four entries of the priority value is equal to 15; if not equal to 15 , increase the master node ID entry in the ID information table, high newly added four entry ID of the priority value, the lower four bits of the 4 bits are the ID of the priority value low four greatest numerical entries; if equal to 15, the master node from the node ID of the application frame extracted priority value updated value is incremented by one; priority value updated again determines whether 15 is equal to, if not equal to 15, the master node ID re-searches whether there are four entries in the high priority value of the updated information in the ID table, if equal to 15, the master node exception handling; the master node from the transmission frame assigned to the node ID, the node ID assigned MAC frame carries the ID information and the domain information from the node assigned.
3. 根据权利要求2所述的令牌传递方法,其特征在于, 所述主节点发送发送数据控制帧,可以发送多帧发送数据控制帧。 3. The token passing method of claim 2, wherein the master node transmits the transmission data control frame, multiple frames may be transmitted transmission data control frame.
4. 根据权利要求3所述的令牌传递方法,其特征在于, 对于下行数据,采用广播的方式传输,对于上行数据,采用单播的方式传输。 4. The token passing method of claim 3, wherein for downlink data transmission by way of radio for the uplink data, by way of unicast transmission.
5. 根据权利要求3或4所述的令牌传递方法,其特征在于, 所述节点ID申请帧包括帧头域、ID域、类型域、MAC域、优先级域和校验域,所述节点ID申请帧的ID域用于填写主节点ID,所述节点ID申请帧的MAC域用于填写所述从节点自身MAC值,所述节点ID申请帧的优先级域用于填写所述从节点自身优先级值,所述节点ID 申请帧的帧类型域为0x02。 The token passing method of claim 3 or claim 4, wherein said frame includes a node ID of the application header field, ID field, type field, the MAC field, priority field and a check field, the application ID field frame ID is used to fill the master node a node ID, the node ID is used to fill the priority application domain frame is used to fill the MAC field from its own MAC value of the node, the node ID of the application from the frame priority value of the node itself, the node ID of the application frame frame type field to 0x02.
6. 根据权利要求3或4所述的令牌传递方法,其特征在于, 所述节点ID分配帧包括帧头域、ID域一、类型域、MAC域、ID域二和校验域,所述节点ID分配帧的ID域一用于填写所述主节点的ID,所述节点ID分配帧的MAC域用于填写目标从节点的MAC值,所述节点ID分配帧的ID域二用于填写为目标从节点分配的ID值,所述节点ID分配帧的类型域为0x03。 6. The token passing method according to claim 3 or claim 4, wherein said frame comprises a frame header node ID assignment field, an ID field, type field, the MAC domain, the domain ID and two check field, the domain ID field MAC ID assigned to a node of said frame to fill the master node ID, the node ID assignment frame is used to fill the MAC value from the target node, the node ID assigned frame ID field for two fill the ID value assigned from the target node, the node ID assignment frame type field is 0x03.
7. 根据权利要求3或4所述的令牌传递方法,其特征在于, 所述发送数据控制帧包括帧头域、ID域、类型域、控制命令域和校验域,所述发送数据控制帧的ID域用于填写目标从节点的ID,当处于是否需要发送数据的状态时,所述发送数据控制帧的控制命令域填写0x00,当处于停止发送数据的状态时,所述发送数据控制帧的控制命令域填写0x01,所述发送数据控制帧的类型域为0x04。 The token passing method of claim 3 or claim 4, wherein said control data transmission frame comprises a frame header field, ID field, type field, a control command field and a check field, the transmission data control ID field is used to fill the frame from the target node ID, when in the state whether the transmission data, the transmission data control command 0x00 fill domain frame, when in the state to stop sending data, the transmission data control domain frame fill control command 0x01, the transmission data control frame type field to 0x04.
8. 根据权利要求3或4所述的令牌传递方法,其特征在于, 所述发送数据控制应答帧包括帧头域、ID域、类型域、控制命令域和校验域,所述发送数据控制应答帧的ID域用于填写所述主节点的ID,当处于需要发送数据的状态时,所述发送数据控制应答帧的控制命令域填写0x00,当处于不需要发送数据的状态时,所述发送数据控制应答帧的控制命令域填写0x01,所述发送数据控制应答帧的类型域为0x05。 8. The token passing method according to claim 3 or claim 4, characterized in that said response frame includes the transmission data control header field, ID field, type field, a control command field and a check field, the data transmission a control response frame for the ID field ID of the master node to fill, when in the state needs to send data, the transmission data control command field of the control response frame fill 0x00, when the state is not required to transmit data, the said response control data transmission frame control command field fill 0x01, the transmission data control response frame type field to 0x05.
9. 根据权利要求3或4所述的令牌传递方法,其特征在于, 所述下行数据帧包括帧头域、ID域、类型域、净荷数据域和校验域,所述下行数据帧的ID域用于填写所述主节点的ID,所述下行数据帧的类型域为0x06 ;所述上行数据帧包括帧头域、ID域、类型域、数据域和校验域,所述上行数据帧的ID域用于填写所述主节点的ID, 所述上行数据帧的类型域为0x07。 9. The method of token passing claim 3 or claim 4, wherein the downlink data includes a frame header field, ID field, type field, a payload data field and a check field, the downlink data frame ID field is used to fill the ID of the master node, the downlink data frame type field is 0x06; the uplink data frame includes a frame header field, ID field, type field, a data field and a check field, the uplink type field for the ID field of the data frame to fill the master node ID of the uplink data frame is 0x07.
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