CN201639600U

CN201639600U - Intelligent low-voltage carrier networking equipment

Info

Publication number: CN201639600U
Application number: CN2010201684284U
Authority: CN
Inventors: 周良璋; 姚青; 葛宗光; 刘鹏
Original assignee: HANGZHOU HAIXING ELECTRICAL EQUIPMENT CO Ltd; Hangzhou Hexing Electrical Co Ltd
Current assignee: CSG Electric Power Research Institute
Priority date: 2010-04-23
Filing date: 2010-04-23
Publication date: 2010-11-17
Anticipated expiration: 2020-04-23

Abstract

The utility model discloses intelligent low-voltage carrier networking equipment which overcomes the defects in the traditional networking technique, effectively solves the problems of low transmission efficiency, low junction efficiency and the like in the traditional networking technique and simultaneously avoids the generation of a 'solitary island' phenomenon well. The client side of the intelligent low-voltage carrier networking equipment is provided with a management module, a find service module and a register service module, a slave node is provided with a find processing module, a register processing module and a local parameter module, the find processing module in the slave node is connected with the find service module of the client side, the register processing module is connected with the register service module of the client side, the register service module is used for judging and identifying whether the local parameter of the slave node is a non- configured system or not, the find service module is used for processing nodes according to the judgment condition, and all nodes are used as junctions, thereby the intelligent low-voltage carrier networking equipment realizes together whole-network calling, optimizes a networking node and ensures the reliability of signal transmission.

Description

A kind of low-voltage carrier intelligent networking equipment

Technical field

The utility model relates to a kind of constructing communication network equipment, relates in particular to a kind of equipment of realizing low-voltage carrier networking.

Background technology

Carrier communication begins to start to walk abroad from eighties of last century the thirties, passes to China the sixties, and China can autonomous production high pressure carrier terminal equipment the eighties.And aspect low-voltage carrier communication, this year is along with electronic technology and development communication technologies, the injection of fund both at home and abroad, and research work obtains important breakthrough, and this has just created condition for the development of low voltage electric power carrier communication technology.But still there is technical bottleneck in low-voltage carrier communication at present, is the key factor of restriction low-voltage carrier communication reliability as decay, interference and dynamic change etc.

At above-mentioned technical problem, technology is constantly weeded out the old and bring forth the new in recent years, has emerged a large amount of new technologies.The employing of spread spectrum, multi-carrier modulation, self-adapting frequency modulation technology and OFDM technology such as (OFDM) all is antijamming capability and the reliability that has improved carrier wave from the physical channel.And the optimization of networking technology also is the important measures that the carrier wave antidamping is taked, and the networking technology of relatively praising highly both at home and abroad mainly contains two kinds at present:

1.Echelon the Lonworks technology.The Lonworks technology self has " the whole network monitor, conflict avoiding " mechanism, can progressively cover the whole network by the thinking of random search under the situation of the network topology structure that need not to understand low voltage electric network.Adopt in this technology at random that the technology of relaying will cause junction efficiency not high, and for " isolated island " that can't form link, it is also powerless.

2.DLC1000。In the DLC1000 networking agreement, optimize routing table by the client periodicmaintenance, service end only need be done seldom route and handle, and therefore can reduce the service end cost.But need be when client is communicated by letter with service end with the link table of going up this service end, like this, each physical frame need spend 3 bytes to represent relay address, and efficiency of transmission is not high.And routing table is static relatively, can not change in real time with the variation of electrical network, and this just causes communication reliability not high, also can't avoid " isolated island " phenomenon simultaneously.

The utility model content

The utility model provides a kind of equipment of brand-new realization intelligent networking, utilize " zero passage detection " to realize client and all synchronous forwardings from node, the networking mode of use having found service optimizes has solved the shortcoming that junction efficiency is not high, efficiency of transmission is low of existing networking technology.

For addressing the above problem, the equipment of the low-voltage carrier intelligent networking that this use is novel, comprise in client and the networking network from node, client is provided with administration module, find service module and registration service module, find service module, the registration service module is connected with administration module respectively, be provided with the discovery processing module from node, location registration process module and local parameter module, the location registration process module, find that processing module is connected with the local parameter module respectively, the discovery service module cascade mutually of the discovery processing module from node and client, the registration service module cascade mutually of location registration process module and client.

Administration module in the client is in charge of all routing iinformations from node, and periodically find carrying out cycle of serving in order to control decision, and the entrained parameter in the discovery discovery service frame that service module sent, described parameter comprises replys probability P and replys time slot A T.After administration module sends the instruction of finding to serve, find that service module sends the discovery service frame on electrical network, this discovery service frame is a discovery broadcast frame, find to wait for new answer after service module sends the discovery broadcast frame from node, if in electrical network, found newly, then distribute MAC Address to newfound from node by the registration service module from node.

Find that processing module is after receiving the discovery broadcast frame of client, whether judge for himself for configuration-system not, if judge that obtain this node is configuration-system not, promptly this node M AC address is NEW, find that then processing module produces one 0 to 100 random number, then this random number and P are compared, in 0 to AT, select a time slot to reply in this random number more at random under less than the situation of P, and the location registration process module receives whether the registration frame comparison that client sends distributes from the address of node this, if then the MAC Address of this locality is revised and preserved, the local parameter module is responsible for then safeguarding that preservation is local as parameters such as MAC Address.

As optimization, the administration module of client is a bidirectional interconnect with thereafter registration service module, the discovery service module of client with between node discovery processing module, be bidirectional interconnect.The administration module of client is in charge of all routing iinformations from node, therefore with the registration service module interconnects, help it for maintenance from the routing iinformation of node, also be convenient to the location registration process module and utilize the routing iinformation that stores in the administration module, manage such as MAC Address etc. to the parameter from node.

As optimization, the local parameter module stores local parameter from node.The local parameter module that is provided with stores the local node parameter information, and the administration module that helps client carries out periodicmaintenance for the subordinate's from node, avoids new node is more carried out unnecessary connection once more, improves networking efficient.

The utility model is compared with existing networking technology, its advantage is: adopt the service of discovery only need just can obtain hundreds of the route information tables from node in several minutes, and routing table is safeguarded by client, need not to preserve routing iinformation from node, simplified from the software and hardware of node device and handled.In addition, the routing iinformation parameter only need take a byte in the Frame, has then also improved data transmission efficiency to a certain extent.

Description of drawings

Fig. 1 is the structural relation figure that realizes the equipment of intelligent networking in the utility model;

Fig. 2 be in the utility model physical frame and time slot concern schematic diagram;

Fig. 3 is for finishing the flow chart of networking by the discovery service in the utility model;

Fig. 4 is the realization intelligence automatic network-building process schematic diagram in the utility model.

Embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical scheme in the utility model is done further specific description.

Embodiment:

In an embodiment, as shown in Figure 1, client is provided with administration module 1, find service module 2 and registration service module 3, described discovery service module 2, registration service module 3 is connected with described administration module 1 respectively, described being provided with from node found processing module 4, location registration process module 5 and local parameter module 6, described location registration process module 5, find that processing module 4 is connected with described local parameter module 6 respectively, described

discovery processing module

4 and 2 of the discovery service modules of described client from node realized two-way communication, 3 realizations of the registration service module of location registration process module 5 and client two-way communication.

Client sends physical frame in the 50Hz cycle signal zero-cross point, and detects at zero crossing from node, if receive correct physical frame from node, just shows from node and has realized slot synchronization with client, promptly is synchronized with the frame head of physical frame.As shown in Figure 2, physical frame is fixed as 42 bytes, and wherein 4 byte physical frames identify 38 byte physical data unit.Each time slot comprises the pause of 1 physical frame and 3 bytes.

This patent has proposed to finish automatic network-building by finding to serve.As shown in Figure 2, after networking began, client was sent instruction by administration module 1 and is begun to find service for discovery service module 2.The frame that the service of discovery is sent out is a broadcast frame, is provided with two parameters in finding service frame: reply probability P and allow to reply timeslot number AT.Wherein, P is the probability of replying from node, P＜=100, and AT represents to need to reply in AT time slot from node.P and AT are determined value, preset when client is sent broadcast frame.As shown in Figure 3, from the discovery processing module 4 of node after receiving the discovery broadcast frame that client sends, from local parameter module 6, obtain local parameter information, whether to self is whether MAC Address is that NEW judges for configuration-system not, if judge that obtaining this node M AC address is NEW, this node produces one 0 to 100 random number, then this random number and P is compared, and selects a time slot to reply in this random number again in 0 to AT at random under less than the situation of P.The setting that timeslot number is replied in this answer probability permission can be avoided or reduce a plurality of the answer at same time slot from node well and cause client can't obtain the situation of correct data.

Store the routing iinformation of having finished networking in the administration module from node, as shown in Figure 2, after client is announced to enter the networking process, administration module sends the registration service module 3 that client is given in instruction, control it and send a registration frame that has a routing iinformation, be positioned at from the location registration process module 5 of node after receiving the registration frame that client sends, the parameter information that has in registration information of frame and the local parameter module is compared, thus judge this node whether be one not configuration-system be whether MAC Address is NEW.If the parameter information of this node can obtain in the registration frame, this node is a configuration-system as can be known, need not to be configured again; After if the local parameter information that has in the local parameter module of this node is compared with the registration frame, find that this information can obtain in the registration frame, judge that then this node M AC address is NEW, illustrate and found new node, thereby notice finds processing module 4 it is configured, and this node is joined among the networking.

As shown in Figure 4, among the figure be the process that one 3 grades of relayings form topological network.Before the networking, all nodes are not configuration-system, and MAC Address is NEW.After automatic network-building began, client began to find 1 grade of website and distributes MAC Address for websites at different levels according to the order of finding that 1 grade of website has 5 among the figure, the MAC Address of all distribution 1-5.And then 2 grades of websites of client terminal to discover and distribute MAC Address to them, and then find 3 grades of websites and distribute MAC Address to them.Like this, network topology structure is formed.In this process, all websites serve as relaying, have at utmost guaranteed can not occur " isolated island " website.

For new installation from node, client can adopt periodic discovery service to find it newly can join the network in time from node guaranteeing.

Claims

1. low-voltage carrier intelligent networking equipment, comprise in client and the networking network from node, it is characterized in that, described client is provided with administration module, find service module and registration service module, described discovery service module, the registration service module is connected with described administration module respectively, describedly be provided with the discovery processing module from node, location registration process module and local parameter module, described location registration process module, find that processing module is connected with described local parameter module respectively, the discovery service module cascade mutually of described discovery processing module from node and described client, the registration service module cascade mutually of location registration process module and client.

2. a kind of low-voltage carrier intelligent networking equipment according to claim 1, it is characterized in that, the administration module of described client and the two-way communication of described registration service module, the discovery service module of described client and described from two-way communication between node discovery processing module.

3. a kind of low-voltage carrier intelligent networking equipment according to claim 1 is characterized in that, described local parameter module stores local parameter from node.