CN1392706A - Method for realizing multiple point communication by using serial bus - Google Patents

Method for realizing multiple point communication by using serial bus Download PDF

Info

Publication number
CN1392706A
CN1392706A CN 02125707 CN02125707A CN1392706A CN 1392706 A CN1392706 A CN 1392706A CN 02125707 CN02125707 CN 02125707 CN 02125707 A CN02125707 A CN 02125707A CN 1392706 A CN1392706 A CN 1392706A
Authority
CN
China
Prior art keywords
data
device
control
id
master
Prior art date
Application number
CN 02125707
Other languages
Chinese (zh)
Other versions
CN1174584C (en
Inventor
邹红兵
郝长鹏
徐大鹏
邱立纯
Original Assignee
北京长城鼎兴网络通信技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京长城鼎兴网络通信技术有限公司 filed Critical 北京长城鼎兴网络通信技术有限公司
Priority to CNB021257078A priority Critical patent/CN1174584C/en
Publication of CN1392706A publication Critical patent/CN1392706A/en
Application granted granted Critical
Publication of CN1174584C publication Critical patent/CN1174584C/en

Links

Abstract

This ivnention discloses a method of realizing multi-point communication by serial bus used in cluster network equipment system, containing the following steps: (A) M-S (Master-Slave) equipment relationship is set up on network physical layer; (B) basic handshaking relationship among equipments on the network link layer; (C) point to point communication relationship among equipments on network transmission layer; (D) data are transmitted according to version number, order and data content formats on network applied layer. M-S data communication are to be realized by this invention for the equipments of setting-up serial transmission relationship, so as to realize the centralized remote control to equipment and unified management to network equipments as well as information equipments.

Description

一种利用串行总线实现多点通信的方法 A method of using a multi-point serial communication bus

技术领域 FIELD

本发明涉及一种实现多点通信的方法,尤指一种在集群式网络设备系统中,利用串行总线实现多点通信的方法。 The present invention relates to a method of multi-point communication, particularly to a method in a cluster system, a network device, using the serial multi-point communications bus.

为实现上述目的,本发明采用以下技术方案:一种利用串行总线实现多点通信的方法,它包括以下步骤:(A)在网络的物理层建立主从设备关系;(B)在网络的链路层建立设备间基本的握手关系;(C)在网络的传输层,建立设备间点对点的通信关系;(a)、设备间按以下数据格式进行数据传输:8位版本号+8位目的地址+8位源地址+8位状态字+8位字节数+n*8数据位+16位累加和校验位;(b)、设备间按以下步骤建立通信关系:①、广播询问总线上的主控设备向总线发送广播询问报文,询问是否有新设备上线,广播的目的地址是0xff;②、认证请求各设备接收到广播询问报文后,检查自己的ID值;由于未经认证的设备初始ID地址是0,而经过认证的设备ID地址非0,所以,如果ID值不等于0,则该设备已经经过认证;如ID值等于0,则该设备没有经过认证,需要进行认证请求;需 To achieve the above object, the present invention employs the following technical solutions: A method of using a multi-point serial communication bus implemented, comprising the steps of: (A) establishing the relationship between the master device from the physical layer of the network; (B) in the network link layer establishing the relationship between the basic handshake device; (C) network transport layer, the relationship between devices establishing a communication point to point; (a), for data transmission between devices in the following data formats: 8 +8 object version number address source address + 8 bits + 8 bits + 8 bits status word bytes + n * 8 bits of data and a parity bit + 16 bit accumulate; (b), the step of establishing a communication between devices according to the relationship: ①, a broadcast inquiry bus master devices to the bus transmits a broadcast query message, asking whether there is a new device on the line, the destination address is a broadcast 0xff; ②, each device receives the authentication request to the broadcast query message, it checks if its ID value; because without certified initial device ID address is 0, and the certified device ID address is non-zero, so that, if the ID value is not equal to 0, then the equipment has been authenticated; the ID value is equal to 0, then the device is not certified, the need for authentication request; required 要请求认证的设备,产生一个随机等待时间,在该时间内检测总线中是否有数据传输,如果在此时间内没有数据传输,则发送认证请求报文;如果有数据传输,则放弃本次认证操作,等待下次广播询问;③、ID分配认证当主控设备接收到认证请求报文后,则在当前空闲的ID池中依次选择一个新的ID,并且绑定该设备的设备信息,构成ID分配报文,以广播的形式发送出去;④、ID分配应答总线中所有得到ID分配报文的设备,比较该报文的设备信息是否与自己一致,如果一致,则把新的ID值替换初始的零值,并发送应答报文;如果不一致,将做丢弃处理;⑤、应答确认当主控设备接收到应答报文以后,将该设备的ID与设备信息绑定并添加到ID池中;将主控设备所记录的从控设备信息及ID值与相应的从控设备所记录的ID值比较,如果一致,则主控设备与从控设备 To request authentication device generates a random wait time, whether data is transmitted within the time detection bus, if no data is transmitted within this time, then sends an authentication request message; if the data transmission is discarded this certification operation, waiting for the next broadcast inquiry; ③, the authentication ID assigned when the master device after receiving the authentication request packet, then select a new ID in the cell ID of the currently idle, and the binding device information of the device, constituting ID allocation message, sent as broadcast out; ④, ID assignment answer all get bus ID assignment packets of equipment, whether or not the message is relatively consistent with their own equipment information, if agreed, put the new ID value replacement the initial value of zero, and sends a reply message; if not, will be discarded; ⑤, response confirmation when the master device after receiving the response packet, the device information of the device ID and binding ID and added to the pool ; comparing the recorded master device from the control apparatus information corresponding to the ID value from the control value of the device ID recorded, if they are consistent, then the master device and the slave device 的通信就建立起来;(c)、设备间进行数据传输(D)、在网络的应用层按照以下格式进行数据传输;在网络应用层传输的数据格式分为版本号,指令和数据内容三部分,它位于传输层数据区部分。 Communication is established; (C), data transfer between devices (D), to transfer data in the following format in the application layer of the network; divided version, instructions and data content in a data format of three parts of the transmission network application layer it is located in part of the transmission layer data area.

在网络的物理层建立主从设备关系,包括以下步骤:①用一根独立的串行管理总线将被管理的多台网络设备的各管理单元进行联接;②在这些管理单元中设定一个主控管理单元,该主控管理单元可以通过网络接口接收远程的管理控制信息,并对独立串行管理总线进行管理,向其它管理单元转发远程管理控制信息;③其余的管理单元作为从控管理单元,在管理总线上接受主控管理单元的控制,接收由主控管理单元转发的远程管理控制信息,并执行相应的操作。 Establishing relationships from the master device, comprising the steps in the physical layer of the network: each of multiple network management unit device ① using a separate serial bus manager is coupled to be managed; ② set in a master management units control management unit, the master management unit may be controlled by a remote interface to receive network management information, and manage separate serial bus management, remote management control information forwarded to other management unit; ③ remaining as a slave management unit managing unit receiving in the management of the bus master control management unit receiving the remote management control information forwarded by the master management unit, and performs a corresponding operation.

在网络的链路层,数据采用九位比特流的方式进行传输,第九位作为数据报文首字节的识别位;如果第九位是一,则代表该字节是数据报文的首字节;如果是零,代表是数据报文的中间数据。 In the link layer of the network, using nine-bit mode data bit stream for transmission as a data packet ninth bit of the first byte of the recognition; if a ninth, represents the byte data packet header byte; if zero, representative of intermediate data packets.

在网络的传输层,设备间数据传输的方式为可以为主从通信方式,也可以为异常事件处理方式: At the transport layer, inter-device data transfer mode network to be a master-slave communication, may be handled as an abnormal event:

所述主从通信方式为:1)主控设备呼叫:当串行总线通信方式建立起来以后,主控设备与从控设备就可以实现点对点的联接;当主控设备需要和某一从控设备进行通信控制或信息读取的时候,则进入主控呼叫模式;主控设备把将要与之通信的设备ID添加到目的ID中,把自己的ID添加到源ID中,把事件请求类型添加到指令中,并添加相应的控制信息和相关信息,报文组装完毕后,向总线中发送报文;2)从控设备呼叫应答:当总线中的从控设备接收到主控呼叫报文以后,在保证数据帧正确的基础上判断该报文的目的ID是否与自己的ID一致,如果一致则对报文进行下一步的处理进程;通过控制指令执行相应的操作,并组装新的报文,在报文中对控制请求做出应答,应答主控设备操作是否成功或提交相应的询问信息;两次通信均成功,则一次通信完毕,采用面向 The master-slave communication mode as follows: 1) call control equipment: When a serial bus communication is established, the master device and the coupling can be achieved from point to point control apparatus; when a master device and a slave device requires or when the communication control information read, it enters a call mode master; the master device with the device ID of the communication to be added to the object ID, the own ID is added to the source ID, the request type to the event command, and add the appropriate control information and related information, the assembled packet to the packet transmission bus; 2) from the control equipment call answer: when the bus control device receives from the calling message to the master, to ensure the correct frame of data on the basis of determining whether the packet destination ID coincides with the own ID, if the same packets to the next processing process; perform a corresponding operation control command, and a new message is assembled, in the packet control request made to the response, the response whether the operation succeeds or master device to submit the appropriate interrogation information; two communications are successful, then the communication is completed once used for 联结的通信方式,使传输得到保证,从而实现了主从设备间的信息安全交换、控制;这种方式是该传输方式下的标准通信方式。 Communicatively coupled, so that transfer is guaranteed in order to achieve a master device from the information exchange between the security control; this is a standard way of communication in the transmission mode.

所述异常事件处理方式:1)在该总线中,主控设备与从控设备间为主从式控制方式;当从控设备产生异常事件时,需要及时提交给主控设备,并申请相应的处理;主控设备定时发送广播信息,询问是否有异常处理请求;2)当从控设备接收到请求以后,判断是否有异常事件需要处理,如果异常事件,则发出处理请求,通过指令信息来区分事件类型,该事件的请求也是通过冲突检测竞争应答方式;3)当主控设备接收到该请求以后,则发出处理认证,通知从控设备该信息已经处理或执行相应的操作;4)从控设备接收到信息以后,执行操作并发出控制应答报文,异常事件处理完毕。 The Exception Handling: 1) the bus, between the master device and master-slave control device from the control mode; when an abnormal event from the control equipment, the need for timely presented to the master device, and apply the corresponding processing; the timing master transmits broadcast information, asking whether there is an abnormality processing request; 2) when a request is received from the control apparatus, determines whether an abnormal event to process, if an abnormal event, a processing request is issued, the instruction information distinguished by event type, the event is requested by the conflict detection response mode competition; 3) when the host device receives the request, the authentication process is issued to notify the information has been processed or executed from a corresponding operation control apparatus; 4) from control after receiving the device information, perform operations and issue control reply message, exception processing is completed.

在网络应用层传输的数据格式分为版本号,指令和数据内容三个部分,它位于传输层数据区部分;版本号:一个字节,它定义了应用层数据的基本格式,版本号可以升级,当版本号被定义下来以后,则应用层数据的解析将是固定的;指令:一个字节指令是描述应用层数据传输中的时间请求;指令分为控制指令和应答指令;当指令类型采用的是一个字节时,该字节的低六位顺序编码,表示每一个方向的通信,可以扩充到64条指令;该字节的第七位用来区分指令类型,由于指令分为控制指令和应答指令两种,所以,如果第七位是0,表示是控制指令,如果为1表示是应答指令;对于第8位,采用偶校验机制,可以保证两位的数据冗余;数据内容:数据内容是基于该指令下控制传输或数据应答的内容,数据内容的长度是不固定的,最大长度为246个字节;数据 Divided version, instructions and data content in a data format of three parts of the transmission network application layer, a transport layer which is located in the data area portion; Version number: a byte that defines the basic format of the application layer data, the version number can be upgraded , when the later was defined as number, parsing the data to the application layer is fixed; instructions: a byte instruction is described in the time of the application layer data transfer request; instructions into control command and a reply command; employed when the instruction type is a byte, the six low-order byte coded to indicate the communication in each direction, can be expanded to 64 instructions; the seventh byte used to distinguish the type of instruction, because the instruction into a control command two kinds of commands and responses, so that, if the seventh bit is a 0, indicating a control command, if the command is a response of 1 represents; for the first 8 bits, even parity mechanism to ensure that the two data redundancy; data content : the data content is based on the control data transmitted or the content in response to this instruction, the contents of the data length is not fixed, the maximum length of 246 bytes; data 容也可以是空,则表示该报文不传输数据只进行指令控制。 Content may also be empty, the packet data is not transmitted only instruction control.

本发明利用串行总线方式在设备间建立主从式网络系统,并按照以上格式进行数据传输,对于能够建立串行传输方式的设备之间,可以实现设备间的主从式数据通信,实现设备间的集中远程控制,对网络设备进行统一的管理,网络结构简单、经济使用。 The present invention utilizes the serial bus mode to establish a master-slave network system between devices and transfer data in the above format, can be established between the devices for the serial transmission mode, the master device may be implemented between the data communication, for device between the centralized remote control, unified device on the network management, network structure is simple, economical to use.

为实现多点通讯,本发明采用以下步骤:1、在网络的物理层建立主从设备关系在整个网络系统中,用一根独立的串行管理总线将被管理的多台网络设备的各管理单元进行联接;在这些管理单元中设定一个主控管理单元,该主控管理单元可以通过网络接口接收远程的管理控制信息,并对独立串行管理总线进行管理,向其它管理单元转发远程管理控制信息;其余的管理单元作为从控管理单元,在管理总线上接受主控管理单元的控制,接收由主控管理单元转发的远程管理控制信息,并执行相应的操作。 To achieve multi-point communications, the present invention employs the following steps: 1. Establish the administering multiple network devices in a master slave relationship in the entire network system, with a separate serial bus management to be managed in the physical layer of the network coupling unit; setting a master management unit managing these units, the main control unit may control the management information received by the remote interface to network management, and management of independent serial bus management, remote administration forwarded to other management unit control information; and a management unit from the rest of the control management unit, the master management unit receives the control on the management bus, forwarded by the master management unit receives the remote control management information, and perform the appropriate action.

2、在网络的链路层建立基本的握手关系数据在RS-485的电气规范中进行传输。 2, the basic handshake to establish the relationship between the data link layer for transmission in network RS-485 Electrical specification. 数据的传输采用九位比特流的方式,第九位作为数据报文首字节的识别位。 Transmitting data using nine bit mode bit stream, as the ninth packet data identification bit of the first byte. 如果第九位是一,则代表该字节是数据报文的首字节;如果是零,代表是数据报文的中间数据。 If the 9th bit is one, it means that the byte is the first byte of data packets; if zero, representative of intermediate data packets. 由于数据的第九位应用于报文首字节的鉴别,因此,在下面叙述的网络传输层,将只对数据前八位进行说明。 Since the ninth packet data applied to the first byte of the discrimination, therefore, be described below in the network transport layer, only eight of the data before described.

3、在网络的传输层,建立设备间点对点的通信关系为了建立点对点的通信关系,本发明规定设备间按照以下格式传输数据包。 3, the transport layer of the network, the relationship between devices establishing a communication point to point communication in order to establish peer relationships, the present invention is specified in the following inter-device data packet transmission format. 如图1所示,本发明的数据帧格式为:8位版本号+8位目的地址+8位源地址+8位状态字+8位字节数+n*8数据位+16位累加和校验位。 1, the data frame format according to the present invention is: 8-bit version +8 +8 destination address source address of the status word bits + 8 bits + 8 bytes + n * 8 bits + 16 bits of data accumulated and Check Digit. 具体说明如下:◆版本号:0bit-7bit7bit-5bit:该三位保留4-0bit:通信的版本号:00100 SMTP VER 1.000101 SMTP VER 2.0◆目的地址:目的地址是目的主机的ID编号,用八位数据表示。 DETAILED DESCRIPTION include: ◆ version: 0bit-7bit7bit-5bit: The three reserved 4-0bit: communicating the version number: 00100 SMTP VER 1.000101 SMTP VER 2.0 ◆ destination address: the destination address is an ID number of the destination host by eight data are expressed. 如0000 1001表示ID=9的主控设备将是被发送目标地址。 As expressed ID = 00001001 9 master will be a destination address. 特殊地址:若是11111111则表示广播,即所有的从控设备都将接收该数据包,该数据包具体指令是否被该主控设备所处理,将提交到上层协议来进行处理。 Special addresses: if 11,111,111 are broadcast, i.e., all of them will receive the packet from the control device, the packet may be processed by particular instruction is the master device, it will be submitted to an upper layer protocol for processing.

◆源地址:是发送方的ID编号。 ◆ source address: is the ID number of the sender. 如果该从控设备正在发送ID分配应答,则源地址为0000 0000,表示本机并没有给分配ID。 If the reply ID transmitted from the control device is assigned, the source address is 0000 0000, it indicates that this machine is not assigned to the ID.

无论是目的地址还是源地址,如果高二位是11,则代表是服务器,具有管理权限,如果是00代表是客户机不具有管理权限。 Whether the destination address or source address, if two bits of 11, represents a server, with administrative privileges, if it is 00 on behalf of a client does not have administrative privileges.

◆状态字:7bit:保留6bit:保留5bit:全双工标志位1:全双工通信方式0:半双工通信方式4bit:不需要应答标志位1:不需要应答0:需要应答3bit:起始报文标志位1:数据被分段发送的时候,表示是第一个传送的报文0:代表不是起始报文2bit:最术报文标志位1:数据被分段发送的时候,表示是最后一个传送的报文0:代表不是最后一个报文1-0 bit:服务优先级标志位分为四个优先级,最高的为11,最低的为00。 ◆ Status word: 7bit: Reserved 6bit: Reserved 5bit: full duplex flag 1: 0 Full-duplex communication mode: half-duplex communication 4bit: no reply flag 1: no response 0: need to answer 3bit: from 1 start packet flag: when transmitted data is fragmented, 0 indicates the first packet is transmitted: Representative not the start packet 2bit: most patients packet flag 1: when the segmented data transmitted, represents the last transmitted packet 0: not the last representative of a packet 1-0 bit: service priority flag is divided into four priority levels, the highest of 11, the minimum is 00. 级别高,该报文就优先被处理。 High-level, the packet prioritization capability.

◆字节数:表示整个数据包的总长度,最大长度为255个字节。 ◆ bytes: indicates the total length of the entire packet, the maximum length of 255 bytes.

◆数据区:应用层数据内容◆校验位:采用累加和校验,采用二个字节,对整个数据报的每个字节进行累加,超过16位,高位溢出。 ◆ data areas: the application layer data parity bit content ◆: cumulative use and calibration, using two bytes, each byte of the entire data packet is accumulated, more than 16, the upper overflow.

如图2所示,本发明利用串行总线实现多点通信,为了在网络传输层,设备间建立通信关系需执行以下步骤:①、广播询问:总线上的主控设备向总线发送广播询问报文,询问是否有新设备上线,广播的目的地址是0xff。 2, the present invention utilizes a multi-point serial communication bus, in order to establish a communication relationship between the network transport layer, the device performs the following steps: ①, a broadcast inquiry: the master device on the bus to the bus transmits a broadcast query message Wen, asked whether there was a new device on the line, the destination address is broadcast 0xff.

②、认证请求:各设备接收到广播询问报文后,检查自己的ID值;由于未经认证的设备初始ID地址是0,而经过认证的设备ID地址非0,所以,如果ID值不等于0,则该设备已经经过认证;如ID值等于0,则该设备没有经过认证,需要进行认证请求;需要请求认证的设备,产生一个随机等待时间,在该时间内检测总线中是否有数据传输,如果在此时间内没有数据传输,则发送认证请求报文;如果有数据传输,则放弃本次认证操作,等待下次广播询问。 ②, the authentication request: after each device receiving a broadcast polling message, check their ID values; as initial ID unauthenticated device address is 0, and the device ID address certified non-zero, so that, if the ID value is not equal to 0, then the equipment has been authenticated; the ID value is equal to 0, then the device is not certified, the need for an authentication request; need to request the authentication device generates a random wait time, whether data is transmitted within the time detection bus If no data is transmitted within this time, then sends an authentication request message; if the data transmission, this authentication operation is abandoned, waiting for the next broadcast inquiry.

③、ID分配认证:当主控设备接收到认证请求报文后,则在当前空闲的ID池中依次选择一个新的ID,并且绑定该设备的设备信息,构成ID分配报文,以广播的形式发送出去。 ③, the authentication ID assignment: When the master device after receiving the authentication request packet, select in turn the current free cell ID of a new ID, and the binding device information of the device constituting the ID assignment message to broadcast the form is sent out.

④、ID分配应答:总线中所有得到ID分配报文的设备,比较该报文的设备信息是否与自己一致,如果一致,则把新的ID值替换初始的零值,并发送应答报文;如果不一致,将做丢弃处理。 ④, ID assignment answer: get all the bus ID assignment packets of equipment, comparing the packet of information is consistent with their own equipment, if agreed, put the replacement of the initial value of zero new ID value, and sends a reply message; If not, it will be discarded.

⑤、应答确认:当主控设备接收到应答报文以后,将该设备的ID与设备信息绑定并添加到ID池中。 ⑤, response confirmation: When the master device receives the response packet, the device ID and the device ID information and added to the bound pool. 将主控设备所记录的从控设备信息及ID值与相应的从控设备所记录的ID值比较,如果一致,则主控设备与从控设备的通信就建立起来。 Comparing the recorded master control device information from the ID value corresponding to the ID value from the control device records, if yes, the master device is established from the communication control device.

当设备间建立起上述通信关系后,数据即开始在设备间进行传输,数据传输的方式主要有两种:一种:主从通信方式:1)主控设备呼叫:当串行总线通信方式建立起来以后,主控设备与从控设备就可以实现点对点的联接。 When the communication relationship established between devices, i.e. start data transmission between devices, data transmission two main ways: one of: a master-slave communication system: 1) call control equipment: When the serial bus communication established after it, the master device and the coupling can be achieved from point to point control equipment. 当主控设备需要和某一从控设备进行通信控制或信息读取的时候,则进入主控呼叫模式。 And when the master device needs to perform a communication control or information read from the control device, the master enters a call mode. 主控设备把将要与之通信的设备ID添加到目的ID中,把自己的ID添加到源ID中,把事件请求类型添加到指令中,并添加相应的控制信息和相关信息,报文组装完毕后,向总线中发送报文。 The master device will be in communication with the device ID is added to the object ID, the own ID is added to the source ID, the request to add the event to the instruction type, and add the appropriate control information and related information, messages assembled after sending the message to the bus.

2)从控设备呼叫应答:当总线中的从控设备接收到主控呼叫报文以后,在保证数据帧正确的基础上判断该报文的目的ID是否与自己的ID一致,如果一致则对报文进行下一步的处理进程。 2) call answering slave device: When the bus control device receives from the call message to the master, to ensure the correct frame of data on the basis of determining whether the packet destination ID coincides with the own ID, if the consistency of the packets further processing process. 通过控制指令执行相应的操作,并组装新的报文,在报文中对控制请求做出应答,应答主控设备操作是否成功或提交相应的询问信息。 Execute corresponding operation control command, and a new message is assembled, made in response to the control request message, whether the operation succeeded or answering master inquiry information submitted appropriate.

两次通信均成功,则一次通信完毕,采用面向联结的通信方式,使传输得到保证,从而实现了主从设备间的信息安全交换、控制。 Two communications are successful, then a communication is completed, a communication mode for the coupling of the transmission is assured, in order to achieve the secure exchange of information between the master and slave devices, the control. 这种方式是该传输方式下的标准通信方式。 This approach is standard in the communication system transmission mode.

第二种:异常事件处理方式:1)在该总线中,主控设备与从控设备间为主从式控制方式。 The second: Exception Handling: 1) the bus, between the master device and master-slave control mode from the control device. 当从控设备产生异常事件时,需要及时提交给主控设备,并申请相应的处理。 When an abnormal event from the control equipment, the need for timely submission to master and apply the appropriate treatment. 主控设备定时发送广播信息,询问是否有异常处理请求。 The timing master transmits broadcast information, asking whether there is an abnormality processing request.

2)当从控设备接收到请求以后,判断是否有异常事件需要处理,如果异常事件,则发出处理请求,通过指令信息来区分事件类型,该事件的请求也是通过冲突检测竞争应答方式。 2) When a request is received from the control apparatus, determines whether an abnormal event to process, if an abnormal event, a processing request is issued, distinguished by the type of event instruction information, the event is requested by the conflict detection response mode competition.

3)当主控设备接收到该请求以后,则发出处理认证,通知从控设备该信息已经处理或执行相应的操作。 3) When the host device receives the request, the authentication process is issued to notify the information has been processed or executed from a corresponding operation control equipment.

4)从控设备接收到信息以后,执行操作并发出控制应答报文,异常事件处理完毕。 4) After receiving the information from the control apparatus, performs a control operation and issue a response message, exception processing is completed.

这种通信方式,解决了当从控设备有异常事件产生需要处理的时候,通过主控设备的定时轮询可以把信息通过冲突检测竞争的方式把数据提交给主控设备,从而得到及时处理。 This form of communication, to solve the abnormality when the slave device generates an event to be processed, the information may conflict detection by competitive way the timing of the submission by the master device polling data to the master device, so that a timely manner.

4、在网络的应用层进行数据传输:当设备间按照上述方法建立起通信关系后,在据按照以下格式进行传输,如图3所示,该数据格式网络的应用层数分为版本号,指令和数据内容三个部分,它位于传输层数据区部分;版本号:一个字节,它定义了应用层数据的基本格式,版本号可以升级,当版本号被定义下来以后,则应用层数据的解析将是固定的。 4, the application layer data transmission network: when communication is established between the device relationship as described above, according to the following format for transmission, shown in FIG. 3, the data format of the network application layers is divided into a version number, three instructions and data content portion, which is located in the transport layer data region portion; version number: a byte that defines the basic format, version upgrade application-layer data, when the later was defined as number, the application layer data the resolution will be fixed.

指令:一个字节指令是描述应用层数据传输中的时间请求。 Instructions: a byte instruction is described in the time of the application layer data transfer request. 指令分为控制指令和应答指令。 Instruction into the instruction control commands and responses. 当指令类型采用的是一个字节时,该字节的低六位顺序编码,表示每一个方向的通信,可以扩充到64条指令;该字节的第七位用来区分指令类型,由于指令分为控制指令和应答指令两种,所以,如果第七位是0,表示是控制指令,如果为1表示是应答指令;对于第8位,采用偶校验机制,可以保证两位的数据冗余。 When using the type of instruction is a byte, the six low-order byte coded to indicate the communication in each direction, can be expanded to 64 instructions; seventh byte is used to distinguish the type of instruction, since the instructions instructions are divided into two kinds of control commands and responses, therefore, if the seventh bit is a 0, indicating a control command, if the command is a response of 1 represents; for the first 8 bits, even parity mechanism, data redundancy can guarantee two Yu.

数据内容:数据内容是基于该指令下控制传输或数据应答的内容,数据内容的长度是不固定的,最大长度为246个字节。 Data content: content data transmission control is based on the content or data in response to the instruction, the contents of the data length is not fixed, the maximum length of 246 bytes. 数据内容也可以是空,则表示该报文不传输数据只进行指令控制。 Content data may also be empty, the packet data is not transmitted only instruction control.

本发明利用串行总线方式在设备间建立主从式网络系统,并按照以上格式进行数据传输,对于能够建立串行传输方式的设备之间,可以实现设备间的主从式数据通信,实现设备间的集中远程控制,对网络设备进行统一的管理,网络结构简单、经济使用。 The present invention utilizes the serial bus mode to establish a master-slave network system between devices and transfer data in the above format, can be established between the devices for the serial transmission mode, the master device may be implemented between the data communication, for device between the centralized remote control, unified device on the network management, network structure is simple, economical to use.

运用本发明所述的方法可建立标准化的协议接口,从而在不同的开发体系中,依据标准的协议接口将会实现设备的接入管理。 Using the method of the present invention can establish a standardized protocol interface, so that the development of different systems, according to the standard of the access management protocol interface device will be achieved. 另外,在本发明协议的传输层和应用层各有一个协议版本号,通过对协议版本的升级可实现在同一个串行总线上不同版本协议的数据传输,并且能够做到向下兼容,具有很强的扩展性。 Further, in the application layer and the transport layer protocol according to the present invention have a protocol version number, the version upgrade of the protocol may be implemented on the same serial bus data transfer protocols of different versions, and can be backward compatible, having highly scalable.

Claims (6)

1.一种利用串行总线实现多点通信的方法,它包括以下步骤:(A)在网络的物理层建立主从设备关系;(B)在网络的链路层建立设备间基本的握手关系;(C)在网络的传输层,建立设备间点对点的通信关系;(a)、设备间按以下数据格式进行数据传输:8位版本号+8位目的地址+8位源地址+8位状态字+8位字节数+n*8数据位+16位累加和校验位;(b)、设备间按以下步骤建立通信关系:①、广播询问总线上的主控设备向总线发送广播询问报文,询问是否有新设备上线,广播的目的地址是0xff;②、认证请求各设备接收到广播询问报文后,检查自己的ID值;由于未经认证的设备初始ID地址是0,而经过认证的设备ID地址非0,所以,如果ID值不等于0,则该设备已经经过认证;如ID值等于0,则该设备没有经过认证,需要进行认证请求;需要请求认证的设备,产生一个随机等待时间 A method of using a serial bus implementation of multipoint communication, comprising the steps of: (A) establishing the relationship between the master device from the physical layer of the network; (B) to establish the relationship between the basic handshake link layer of the network device ; (C) network transport layer, the relationship between devices establishing a communication point to point; (a), for data transmission between devices in the following data formats: version number 8 + 8 bits + 8 bits destination address source address state +8 word +8 bytes + n * 8 bits of data and a parity bit + 16 bit accumulate; (b), the step of establishing a communication between devices according to the relationship: ①, the master device broadcasts interrogation bus transmits a broadcast inquiry to the bus message, asking whether there is a new line equipment, the destination address of the broadcast is 0xff; ②, the authentication request to each device receiving a broadcast polling message, check their ID values; as unauthenticated device initially ID address is 0, and after the authentication device ID address is non-zero, so that if the ID value is not equal to 0, then the equipment has been authenticated; the ID value is equal to 0, then the device is not certified, the need for an authentication request; need to request the authentication device, generating a random waiting time 在该时间内检测总线中是否有数据传输,如果在此时间内没有数据传输,则发送认证请求报文;如果有数据传输,则放弃本次认证操作,等待下次广播询问;③、ID分配认证当主控设备接收到认证请求报文后,则在当前空闲的ID池中依次选择一个新的ID,并且绑定该设备的设备信息,构成ID分配报文,以广播的形式发送出去;④、ID分配应答总线中所有得到ID分配报文的设备,比较该报文的设备信息是否与自己一致,如果一致,则把新的ID值替换初始的零值,并发送应答报文;如果不一致,将做丢弃处理;⑤、应答确认当主控设备接收到应答报文以后,将该设备的ID与设备信息绑定并添加到ID池中;将主控设备所记录的从控设备信息及ID值与相应的从控设备所记录的ID值比较,如果一致,则主控设备与从控设备的通信就建立起来;(c)、设备间进行数据传 During this time whether there is detected a data transmission bus, if no data is transmitted within this time, then sends an authentication request message; if the data transmission, this authentication operation is abandoned, waiting for the next broadcast inquiry; ③, ID assignment when the master device authentication after receiving the authentication request packet, then select a new ID in the cell ID of the currently idle, and the binding device information of the device constituting the ID allocation message, sent in the form of a broadcast; ④, all bus ID assignment response message to obtain the device ID assignment, comparing whether the message is consistent with its own device information, if the same, put a new zero value instead of the initial value of the ID, and sends a reply message; if inconsistent, will be discarded; ⑤, when the master device after the response confirmation response packet is received, the device ID and the device ID information and added to the pool to bind; the master device is recorded from the information control equipment ID value and compared with corresponding values ​​from the control device ID recorded, if they are consistent, then the master device and is established from the communication control device; (C), between the data transmission device (D)、在网络的应用层按照以下格式进行数据传输;在网络应用层传输的数据格式分为版本号,指令和数据内容三部分,它位于传输层数据区部分。 (D), the application layer of the network in the following format data transfer; divided version, instructions and data content in a data format of three parts of the transmission network application layer, a transport layer which is located in the data area portion.
2.根据权利要求1所述的一种利用串行总线实现多点通信的方法,其特征在于:在网络的物理层建立主从设备关系,包括以下步骤:①用一根独立的串行管理总线将被管理的多台网络设备的各管理单元进行联接;②在这些管理单元中设定一个主控管理单元,该主控管理单元可以通过网络接口接收远程的管理控制信息,并对独立串行管理总线进行管理,向其它管理单元转发远程管理控制信息;③其余的管理单元作为从控管理单元,在管理总线上接受主控管理单元的控制,接收由主控管理单元转发的远程管理控制信息,并执行相应的操作。 According to claim 1 utilizing the multi-point serial communication bus implemented method, comprising: establishing a master slave relationship, comprising the steps of the network at the physical layer: ① the management by an independent serial each bus snap multiple network devices to be managed are coupled; ② setting a master management unit managing these units, the main control unit may control the management information received by the remote interface to network management, and independent string management bus management, remote management control information forwarded to other management unit; ③ the remaining management unit managing unit as a slave, the master managing unit receives the control on the management bus, forwarding the received remote control management by the master management unit information, and perform the appropriate action.
3.根据权利要求2所述的一种利用串行总线实现多点通信的方法,其特征在于:在网络的链路层,数据采用九位比特流的方式进行传输,第九位作为数据报文首字节的识别位;如果第九位是一,则代表该字节是数据报文的首字节;如果是零,代表是数据报文的中间数据。 2 according to the method of utilizing serial bus implementation multipoint communication, as claimed in claim wherein: the link layer of the network, using nine-bit mode data bit stream for transmission as a ninth datagrams the first byte of the text recognition site; if a ninth, represents the byte is the first byte of data packets; if zero, representative of intermediate data packets.
4.根据权利要求3所述的一种利用串行总线实现多点通信的方法,其特征在于:在网络的传输层,设备间数据传输的方式为:主从通信方式;所述主从通信方式为:1)主控设备呼叫:当串行总线通信方式建立起来以后,主控设备与从控设备就可以实现点对点的联接;当主控设备需要和某一从控设备进行通信控制或信息读取的时候,则进入主控呼叫模式;主控设备把将要与之通信的设备ID添加到目的ID中,把自己的ID添加到源ID中,把事件请求类型添加到指令中,并添加相应的控制信息和相关信息,报文组装完毕后,向总线中发送报文;2)从控设备呼叫应答:当总线中的从控设备接收到主控呼叫报文以后,在保证数据帧正确的基础上判断该报文的目的ID是否与自己的ID一致,如果一致则对报文进行下一步的处理进程;通过控制指令执行相应的操作,并组装新 The method of using multi-point serial communication bus according to claim 3, wherein: the transport layer, inter-device data transfer mode network for: master-slave communication scheme; the master-slave communication way: 1) call control equipment: when a serial bus communication is established, the master device and the coupling can be achieved from point to point control apparatus; when the master device needs to communicate with or control information from a control device when read, it enters a call mode master; the master device to be in communication with the device ID is added to the object ID, the own ID is added to the source ID, the request type to add the event to the command, and add the corresponding control information and related information, the assembled packet to the packet transmission bus; 2) from the control equipment call answer: when the bus slave device receives the call packet to the master, to ensure that the correct data frame the packet is determined based on the object ID is consistent with its own ID, if the same packets to the next processing process; perform a corresponding operation control command, and a new assembly 的报文,在报文中对控制请求做出应答,应答主控设备操作是否成功或提交相应的询问信息;两次通信均成功,则一次通信完毕,采用面向联结的通信方式,使传输得到保证,从而实现了主从设备间的信息安全交换、控制;这种方式是该传输方式下的标准通信方式。 Packets in the packet control request made to the response, the response whether the operation succeeds or master device to submit the appropriate interrogation information; two communications are successful, then the communication is completed once, using the communication scheme for coupling the transmission to give ensure, in order to achieve the secure exchange of information between the master and slave devices, control; this is a standard way of communication in the transmission mode.
5.根据权利要求3所述的一种利用串行总线实现多点通信的方法,其特征在于:在网络的传输层,设备间数据传输的方式为:异常事件处理方式;所述异常事件处理方式:1)在该总线中,主控设备与从控设备间为主从式控制方式;当从控设备产生异常事件时,需要及时提交给主控设备,并申请相应的处理;主控设备定时发送广播信息,询问是否有异常处理请求;2)当从控设备接收到请求以后,判断是否有异常事件需要处理,如果异常事件,则发出处理请求,通过指令信息来区分事件类型,该事件的请求也是通过冲突检测竞争应答方式;3)当主控设备接收到该请求以后,则发出处理认证,通知从控设备该信息已经处理或执行相应的操作;4)从控设备接收到信息以后,执行操作并发出控制应答报文,异常事件处理完毕。 The 3 utilizing the multipoint communication method of the serial bus implementation claim wherein: the transport layer, inter-device data transfer mode network to: abnormal event handling; the exception processing manner: 1) in the bus, the master control device from among a master-slave control mode; when an abnormal event from the control equipment, the need for timely presented to the master device, and apply the corresponding processing; master device Timing transmits broadcast information, asking whether there is an abnormality processing request; 2) when the reception from the control equipment to the request, determines whether an abnormal event to process, if an abnormal event, the processing request, to distinguish the type of event by the instruction information, the event after 4) receives information from the control apparatus; request by the collision detection is competition answer mode; 3) when the host device receives the request, the authentication process is issued to notify the information has been processed or executed from a corresponding operation control device , perform operations and issue control reply message, exception processing is completed.
6.根据权利要求4或5所述的一种利用串行总线实现多点通信的方法,其特征在于:在网络应用层传输的数据格式分为版本号,指令和数据内容三个部分,它位于传输层数据区部分;版本号:一个字节,它定义了应用层数据的基本格式,版本号可以升级,当版本号被定义下来以后,则应用层数据的解析将是固定的;指令:一个字节指令是描述应用层数据传输中的时间请求;指令分为控制指令和应答指令;当指令类型采用的是一个字节时,该字节的低六位顺序编码,表示每一个方向的通信,可以扩充到64条指令;该字节的第七位用来区分指令类型,由于指令分为控制指令和应答指令两种,所以,如果第七位是0,表示是控制指令,如果为1表示是应答指令;对于第8位,采用偶校验机制,可以保证两位的数据冗余;数据内容:数据内容是基于该指令下控制传 According to claim 4 or 5 utilizing multipoint communication method of the serial bus implementation claim wherein: the version number is divided into instruction and data content in a data format of three parts of the network layer transmission applications, it located above the transport layer data region portion; version number: a byte that defines the basic format, version upgrade application-layer data, when the later was defined as number, parsing the data to the application layer is fixed; instructions: a time-byte instruction is described in the application layer data transfer request; instructions into control command and a reply command; when the instruction type is used in a byte, the six low-order byte coding, represents in each direction communications, instructions can be expanded to 64; the seventh byte used to distinguish the type of instruction, since the instructions are divided into two kinds of control commands and response commands, so that, if the seventh bit is 0, the control command indicates that, if 1 shows a response command; for the first 8 bits, even parity mechanism to ensure that the two data redundancy; data content: content data is passed down the instruction based on the control 或数据应答的内容,数据内容的长度是不固定的,最大长度为246个字节;数据内容也可以是空,则表示该报文不传输数据只进行指令控制。 Response or content data, the content data length is not fixed, the maximum length of 246 bytes; data content may also be empty, the packet data is not transmitted only instruction control.
CNB021257078A 2002-08-13 2002-08-13 Method for realizing multiple point communication by using serial bus CN1174584C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB021257078A CN1174584C (en) 2002-08-13 2002-08-13 Method for realizing multiple point communication by using serial bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB021257078A CN1174584C (en) 2002-08-13 2002-08-13 Method for realizing multiple point communication by using serial bus

Publications (2)

Publication Number Publication Date
CN1392706A true CN1392706A (en) 2003-01-22
CN1174584C CN1174584C (en) 2004-11-03

Family

ID=4745639

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021257078A CN1174584C (en) 2002-08-13 2002-08-13 Method for realizing multiple point communication by using serial bus

Country Status (1)

Country Link
CN (1) CN1174584C (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031301A1 (en) * 2006-09-08 2008-03-20 Suzhou Savantlogic Tech Ltd. A method for the point to point online identity authenticaiton
US7356627B2 (en) 2003-07-10 2008-04-08 Nokia Corporation Device identification
CN100407618C (en) 2004-03-05 2008-07-30 中兴通讯股份有限公司 Interfaces in a trunking service authentication and authorization trunking service implementation method
CN100484130C (en) 2003-01-28 2009-04-29 华为技术有限公司 A method for improving stability of 802.1X authentication equipment
CN100496048C (en) 2005-02-28 2009-06-03 邹润民 Multi-host communication system
CN100508454C (en) 2004-07-16 2009-07-01 佛山市顺德区顺达电脑厂有限公司;神达电脑股份有限公司 Method for data transmission between master and slave elements
US7644265B2 (en) 2003-06-10 2010-01-05 Hitachi, Ltd. Content transmitting device, content receiving device and content transmitting method
CN1585408B (en) 2003-06-03 2010-05-26 微软公司 Supplicant and authenticator intercommunication mechanism
US7836507B2 (en) 2004-03-19 2010-11-16 Hitachi, Ltd. Contents transmitter apparatus, contents receiver apparatus and contents transmitting method
CN102043746A (en) * 2010-12-01 2011-05-04 深圳市茁迩科技发展有限公司 Automatic sequencing method, device, equipment and system of serial bus communication equipment
CN1801690B (en) 2004-12-13 2011-06-08 英特尔公司 Method, system, and apparatus for link latency management
US8010792B2 (en) 2004-01-16 2011-08-30 Hitachi, Ltd. Content transmission apparatus, content reception apparatus and content transmission method
CN102326357A (en) * 2008-12-18 2012-01-18 瑞典爱立信有限公司 Multipoint delivery entity and method
CN102647252A (en) * 2012-03-26 2012-08-22 航天东方红卫星有限公司 Serial communication method
CN101309192B (en) 2007-05-18 2012-09-05 青岛海信电器股份有限公司 Bus communication method
CN103023738A (en) * 2011-09-23 2013-04-03 深圳市迈纬汽车电子有限公司 Method for controlling vehicle bus network communication
CN103780340A (en) * 2013-11-07 2014-05-07 福建睿能科技股份有限公司 Communication method, control equipment, electronic ballast and communication system
CN104317765A (en) * 2014-10-20 2015-01-28 成都广达电子股份有限公司 Serial communication based one-to-many communication system and implementation method
CN104393895A (en) * 2006-01-30 2015-03-04 索尼株式会社 Communication device, data processing device, and method and program for communication
CN105151936A (en) * 2015-09-10 2015-12-16 广州日滨科技发展有限公司 Method for distributing identity document (ID) for elevator control local area network controller area network (CAN) bus device
CN106302066A (en) * 2016-08-26 2017-01-04 珠海格力电器股份有限公司 Master-slave-free communication method and device
CN106357301A (en) * 2016-08-25 2017-01-25 阳光电源股份有限公司 Cascaded power line carrier wave method and device
CN107781949A (en) * 2017-10-13 2018-03-09 青岛海信日立空调系统有限公司 Air-cooling module unit extension method and air-cooling module unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440758B (en) 2006-08-08 2011-03-30 Advanced Risc Mach Ltd Interconnect logic for a data processing apparatus
CN101853000B (en) * 2010-06-02 2012-05-23 珠海赛纳打印科技股份有限公司 One-swath multi-imaging box chip, method using the same, imaging system and imaging box
GB2522057A (en) * 2014-01-13 2015-07-15 Advanced Risc Mach Ltd A data processing system and method for handling multiple transactions

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100484130C (en) 2003-01-28 2009-04-29 华为技术有限公司 A method for improving stability of 802.1X authentication equipment
CN1585408B (en) 2003-06-03 2010-05-26 微软公司 Supplicant and authenticator intercommunication mechanism
US7644265B2 (en) 2003-06-10 2010-01-05 Hitachi, Ltd. Content transmitting device, content receiving device and content transmitting method
US8225084B2 (en) 2003-06-10 2012-07-17 Hitachi, Ltd. Content transmitting device, content receiving device and content transmitting method
US7356627B2 (en) 2003-07-10 2008-04-08 Nokia Corporation Device identification
US8468350B2 (en) 2004-01-16 2013-06-18 Hitachi, Ltd. Content transmission apparatus, content reception apparatus and content transmission method
US8010792B2 (en) 2004-01-16 2011-08-30 Hitachi, Ltd. Content transmission apparatus, content reception apparatus and content transmission method
CN100407618C (en) 2004-03-05 2008-07-30 中兴通讯股份有限公司 Interfaces in a trunking service authentication and authorization trunking service implementation method
US7836507B2 (en) 2004-03-19 2010-11-16 Hitachi, Ltd. Contents transmitter apparatus, contents receiver apparatus and contents transmitting method
US8209534B2 (en) 2004-03-19 2012-06-26 Hitachi, Ltd. Contents transmitter apparatus, contents receiver apparatus and contents transmitting method
CN100508454C (en) 2004-07-16 2009-07-01 佛山市顺德区顺达电脑厂有限公司;神达电脑股份有限公司 Method for data transmission between master and slave elements
CN1801690B (en) 2004-12-13 2011-06-08 英特尔公司 Method, system, and apparatus for link latency management
CN100496048C (en) 2005-02-28 2009-06-03 邹润民 Multi-host communication system
CN104393895B (en) * 2006-01-30 2017-09-08 索尼株式会社 A communication apparatus, a data processing apparatus and communication method, and program
CN104393895A (en) * 2006-01-30 2015-03-04 索尼株式会社 Communication device, data processing device, and method and program for communication
CN100566250C (en) 2006-09-08 2009-12-02 苏州胜联电子信息有限公司 Point-to-point network identity authenticating method
WO2008031301A1 (en) * 2006-09-08 2008-03-20 Suzhou Savantlogic Tech Ltd. A method for the point to point online identity authenticaiton
CN101309192B (en) 2007-05-18 2012-09-05 青岛海信电器股份有限公司 Bus communication method
CN102326357A (en) * 2008-12-18 2012-01-18 瑞典爱立信有限公司 Multipoint delivery entity and method
CN102326357B (en) * 2008-12-18 2015-07-22 瑞典爱立信有限公司 Multipoint delivery entity and method
CN102043746B (en) 2010-12-01 2012-08-29 深圳市茁迩科技发展有限公司 Automatic sequencing method, device, equipment and system of serial bus communication equipment
CN102043746A (en) * 2010-12-01 2011-05-04 深圳市茁迩科技发展有限公司 Automatic sequencing method, device, equipment and system of serial bus communication equipment
CN103023738A (en) * 2011-09-23 2013-04-03 深圳市迈纬汽车电子有限公司 Method for controlling vehicle bus network communication
CN103023738B (en) * 2011-09-23 2015-09-02 深圳市迈纬汽车电子有限公司 A method for controlling a vehicle bus communication network
CN102647252B (en) * 2012-03-26 2014-11-19 航天东方红卫星有限公司 Serial communication method
CN102647252A (en) * 2012-03-26 2012-08-22 航天东方红卫星有限公司 Serial communication method
CN103780340A (en) * 2013-11-07 2014-05-07 福建睿能科技股份有限公司 Communication method, control equipment, electronic ballast and communication system
CN104317765A (en) * 2014-10-20 2015-01-28 成都广达电子股份有限公司 Serial communication based one-to-many communication system and implementation method
CN105151936A (en) * 2015-09-10 2015-12-16 广州日滨科技发展有限公司 Method for distributing identity document (ID) for elevator control local area network controller area network (CAN) bus device
CN106357301A (en) * 2016-08-25 2017-01-25 阳光电源股份有限公司 Cascaded power line carrier wave method and device
CN106302066A (en) * 2016-08-26 2017-01-04 珠海格力电器股份有限公司 Master-slave-free communication method and device
CN107781949A (en) * 2017-10-13 2018-03-09 青岛海信日立空调系统有限公司 Air-cooling module unit extension method and air-cooling module unit

Also Published As

Publication number Publication date
CN1174584C (en) 2004-11-03

Similar Documents

Publication Publication Date Title
Satran et al. Internet small computer systems interface (iSCSI)
CN100422958C (en) Using direct memory access for performing database operations between two or more machines
AU2008322641B2 (en) A telemedicine application for remote monitoring, viewing and updating of patient records
JP2698336B2 (en) Node for use in a local area network for digital data processing system
US5361372A (en) Memory management for data transmission networks
JP5266258B2 (en) Layer 2 Management Entity messaging framework in the network
EP1590920B1 (en) Multi-channel power line exchange protocol
US20080140811A1 (en) Method and apparatus for a host controller operations over a network
US6697372B1 (en) Local area network accessory for integrating USB connectivity in existing networks
CN100477811C (en) Naming stipulation of different equipments, and apparatus and method using the same naming stipulation
KR100605218B1 (en) Network adaptor
US4597082A (en) Transceiver for multi-drop local area networks
US20020124108A1 (en) Secure multiprotocol interface
JP4422359B2 (en) A method using a universal serial bus (usb) as a peer-to-peer network
KR101224771B1 (en) Reliably Transferring Queued Application Messages
US5301280A (en) Capability based communication protocol
US7991351B2 (en) Extension of wired controller area networks to wireless personal area networks
CN1150460C (en) Computer bus system communications system and method for communicating through bus
CN102216919B (en) Method and apparatus for connecting USB devices to a remote computer
US7200641B1 (en) Method and system for encoding SCSI requests for transmission using TCP/IP
JP4210042B2 (en) Method and apparatus for device sharing and arbitration
JP4577683B2 (en) Common protocol hierarchical structure and data transmission method and a common protocol packet for mutual data transmission between different protocols
CN1285046C (en) Arrangement for creating multiple virtual queue pairs from compressed queue pairs based on shared attributed
US5742607A (en) Method and apparatus for controlling two way communication via disparate physical media
US6522654B1 (en) Method for hosting the internet protocol suite on the IEEE-1394 high speed serial bus

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model
CP03