CN102752296B - Integrated digital recording method of scheduling business of electric network - Google Patents

Integrated digital recording method of scheduling business of electric network Download PDF

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Publication number
CN102752296B
CN102752296B CN201210214971.7A CN201210214971A CN102752296B CN 102752296 B CN102752296 B CN 102752296B CN 201210214971 A CN201210214971 A CN 201210214971A CN 102752296 B CN102752296 B CN 102752296B
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switch control
conference server
sends
called
server
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CN102752296A (en
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卜宪德
郭经红
李炳林
郭云飞
刘世栋
梁云
田文锋
朱亮
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Global Energy Interconnection Research Institute
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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Abstract

The invention discloses an integrated digital recording method of scheduling business of an electric network, and the method is characterized in that after each electric network scheduling terminal is registered to an exchanging control device, when any calling terminal orienting a call transmits a calling request to the exchanging control device, after passing the business authentication of the exchanging control device, the calling request is forwarded to a called terminal, and recoding control information is simultaneously transmitted to the calling terminal and the called terminal. After the calling is established between the calling terminal and the called terminal, the calling terminal and the called terminal transmit a media stream to a conference server, and the media stream connection is established through the conference server; and then a media server combines the information of the calling terminal and the called terminal and then forwards the combined information to a digital recording server to be recorded. Due to the adoption of the method, not only can the voice recording be carried out on the scheduling business, but also the video, data, images and mixed modes can be recorded, and the problems of packet loss and data desynchrony by adopting the communication network recording and playing way can be solved; and moreover, the method has the advantages of good sound mixing quality, high sound mixing efficiency, no occupation for the storage space of the terminal, no need of special recording and playing device and the like.

Description

A kind of recording method of integrated digital of dispatching of power netwoks business
Technical field
The present invention relates to electric power conduct and communication technical field, be specifically related to a kind of recording method of integrated digital of dispatching of power netwoks business.
Background technology
Along with the development of power system telecommunications technology, electric power conduct and communication is no longer only limitted to voice communication, video, image, data and communication for coordination etc. are more and more applied in power scheduling process, for power scheduling personnel provide dynamically, the electric network data information of multidimensional.And along with the complexity of electrical network more and more higher, information required for dispatching of power netwoks covers the multiple business of electrical network, as: grid equipment is monitored, dispatching of power netwoks, operation of power networks planning, interruption maintenance plan, electric network swim technology, protection fixed value adjusting, safe internal control, transmission line status, multimedia communication etc., not only need voice, video, data, the information such as image, more to the mixing of multi information and collaboratively to have higher requirement, the different department of these different business needs, personnel between different geographical have participated in jointly, especially intelligent grid construction all needs integrated communication to support.
Digital recording system has important effect in electric power safety production run, and it is accident analysis, searches the important means that reason, confirmation of responsibility, traffic control evaluation etc. provide true raw information.Along with the construction of intelligent grid, dispatching of power netwoks business has had new communication requirement, for adapting to these demands, construct the communication for coordination problem that electrical network Multi-Service switching and communications platform solve each business of electrical network, this platform comprises switch control device, Conference server, digital record server, various multimedia communication terminal, dispatch terminal etc.
For digital recording system, traditional recording method mainly contains following several:
(1) data are directly sent to digital record server without process, consequently for the same dispatching of power netwoks time, due to the independence of each operation system, many different records can be produced, make to become very complicated to the data query of accident and accident analysis, and between many records, data can not be synchronous.
(2) utilizing digital record server by monitoring the network information, real-time analysis network data, capturing the signaling such as session start, end.After listening to session start instructions, start to capture concrete session information, after listening to conversation end instruction, stop this conversation recording.Network monitoring needs the Port Mirroring function utilized on the network switch, the data of each port are forwarded on record server by mirror port, record server is according to parameter configuration, from the data received, screen media information generate some records and carry out storage preservation, complete recording process.
(3) by the independent record of multimedia communication terminal, then recorded information is transferred to digital record server.Analyzing from principle, mainly there is following defect in above-mentioned three kinds of digital recording method:
(1) digital recording equipment needs the analytic function possessing signaling protocol, and design difficulty increases, and performance requirement is higher;
(2) other data without the need to record also can be copied forwarding by the network switch, easily cause the congested and packet loss of process, and Information Security are poor;
(3) network switch must additionally possess Port Mirroring function, adds equipment cost during scheme implementation;
(4) network switch needs to dispose according to the position of recording target, management dispersion.
(5) the great cost increasing local terminal of mode meeting of upload server is first recorded again by terminal.
(6) sessions have many records, cannot realize monitor video, electric network data, the collaborative unified record exchanging data simultaneously.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of recording method of integrated digital of dispatching of power netwoks business, not only can carry out voice record to dispatching services, record can also be carried out to video, data, image and mixed mode, solve nonsynchronous problem between the mode packet loss of communication network recorded broadcast and data.
The recording method of the integrated digital of a kind of dispatching of power netwoks business provided by the invention, its improvements are, described method comprises the steps:
(1) each dispatching of power netwoks terminal and Conference server are registered to switch control device, the calling terminal made a call sends call request to described switch control device, after authentication being carried out to its type of service by described switch control device, call request information is transmitted to Conference server and processes;
(2) information after process is sent to described switch control device by described Conference server, sends Conference control information, send described Conference control information and call request to called end by described switch control device to calling terminal;
(3) after described calling terminal and described called end receive record controls information, media resource is sent to described Conference server, after described media resource processes by described Conference server, is transmitted to corresponding called end and digital record server;
(4) described digital record server generates the media resource after described Conference server process and records and store, and treats further inquiry.
Wherein, Media Stream is carried out the mixed processing of voice, video, data by step (3) described Conference server.
Wherein, described switch control device control figure record server record data message, is undertaken mixing and forwarding by described Conference server.
Wherein, step (1) comprises the steps:
1) calling terminal sends INVITE information request to switch control device, and request invites called end to add session;
2) described switch control device returns 100Trying to calling terminal;
3) described switch control device sends a message to described Conference server, for the RTP bag to calling terminal transmission called end;
4) described Conference server returns 100Trying to described switch control device.
Wherein, step (2) comprises the steps:
5) described Conference server sends 2000k to described switch control device, and by this signal, the IP address information of described Conference server and port numbers routing iinformation is passed to switch control device;
6) signal of described 2000k is sent to described calling terminal by described switch control device, and the information of described Conference server is passed to calling terminal;
7) described calling terminal sends ACK to described switch control device;
8) described switch control device sends described ACK to the terminal of described Conference server;
9) described switch control device carries the logical channel information that Conference server distributes, and sends described INVITE ask to described called end;
10) described called end returns 100Trying to described switch control device;
11) described called end sends 2000k to described switch control device, and by this signal, coded message corresponding to coded message corresponding to coded message corresponding for the IP address of described called end, port numbers, payload type and coded message corresponding to payload type message is passed to described switch control device.
Wherein, step (3) comprises the steps:
12) described switch control device sends 200OK to Conference server, sends the information of described called end to described Conference server.
13) described Conference server sends ACK to described switch control device;
14) described switch control device sends described ACK to described called end;
15) call setup success, the logical channel that described calling terminal and described called end are distributed by described Conference server enters speech phase.
Wherein, step (4) comprises the steps:
16), after call starts, described Conference server carries out audio mixing Frequency mixing processing the Media Stream of both sides, sends to digital record server to carry out data record;
17) described calling terminal on-hook, sends BYE message to described switch control device, and request terminates this communication;
18) described switch control device responds to described calling terminal loopback 487;
19) described switch control device sends BYE message to described Conference server, and request terminates communication;
20) described switch control device sends BYE message to described called end, and request terminates communication;
21) described switch control device sends BYE message to described digital record server, request end number record;
22) described digital record server responds to described switch control device loopback 200OK;
23) described called end on-hook, responds to described switch control device loopback 200OK;
24) described Conference server on-hook, responds to described switch control device loopback 200OK.
Wherein, described calling terminal and described called end are dispatch terminal.
Compared with the prior art, beneficial effect of the present invention is:
The present invention completes the digital record of dispatching services by the mixed processing of collaborative work to each business datum of electrical network of switch control device and video conference device, because Conference server has media mixing function, therefore the present invention not only can carry out voice record to dispatching services, can also to video, data, image and mixed mode carry out record, solve nonsynchronous problem between the mode packet loss of communication network recorded broadcast and data, and it is good to have audio mixing quality, efficiency is high, and the memory space of not occupied terminal, do not need the advantages such as special recorded broadcast equipment.In addition, the present invention adopts the Session Initiation Protocol of standard, and each dispatch terminal is communicated by switch control device, and system has opening, can access other business of electrical network quickly and easily, realize the digital record of new business.
Accompanying drawing explanation
Fig. 1 is digital record schematic diagram in dispatching of power netwoks business provided by the invention.
Fig. 2 is digital record realization flow method schematic diagram provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
In electrical network Multi-Service switching and communications platform, each equipment connection schematic diagram as shown in Figure 1, its equipment composition comprises: exchange Control Server, Conference server, digital record server, dispatch terminal, conference terminal, the equipment such as monitor terminal, each equipment is interconnected by IP network, and the communication protocol of equipment room adopts standard SIP protocol (RFC3261 standard).
Digital record server takes following steps to complete the integrated digital record of dispatching of power netwoks business:
Step one: each terminal comprises after Conference server is registered to switch control device, the calling terminal made a call sends call request to switch control device, switch control device carries out authentication to its type of service, after authentication, call request information is transmitted to Conference server and processes.;
Step 2: process information is sent to switch control device by Conference server, sends Conference control information by switch control device to calling terminal, sends Conference control information and call request to called end.
Step 3: after calling terminal and called end receive record controls information, media resource is sent to Conference server, Media Stream is carried out the mixed processing of voice, video, data by Conference server again, then be transmitted to corresponding called end, simultaneously by mixing media stream to digital record server.
Step 4: digital record server stores the Media Stream that Conference server forwards and generates record, treats further inquiry.
Concrete, digital record implementation method idiographic flow as shown in Figure 2, comprises step concrete as follows:
(1) calling terminal (dispatch terminal) sends INVITE information request to switch control device, and request invites called end (dispatch terminal) to add session.
(2) switch control device returns 100Trying to calling terminal, represents and receives request message, process it.
(3) switch control device sends a MESSAGE to Conference server, and notification of meetings server is that called end distributes a logical channel, for the RTP bag to calling terminal transmission called end.
(4) Conference server returns 100Trying to switch control device, represents and has received this message, process it.
(5) Conference server controls control appliance to exchange and sends 200OK, represents and has successfully accepted and processed MESSAGE message, and send the routing iinformation such as IP address, port numbers of self to switch control device by this message.
(6) switch control device sends 200OK to calling terminal, sends the information of Conference server to calling terminal.
(7) calling terminal sends ACK to switch control device, and confirmation has received the Conference server information that switch control device sends.
(8) switch control device sends ACK to Conference server terminal, confirms to have received the response of switching equipment to Conference server message,
(9) switch control device carries the logical channel information that Conference server distributes, and sends out INVITE request to called end.
(10) called end returns 100Trying to switch control device, represents and receives request message, process it.
(11) called end sends 200OK to switch control device, represent and successfully accepted and processed INVITE request, and send the information such as the IP address of self, port numbers, payload type, coding that payload type is corresponding to switch control device by this message.
(12) switch control device sends 200OK to Conference server, sends the information of called end to Conference server.
(13) Conference server sends ACK to switch control device, represents the message comprising called end information having received switch control device and sent.
(14) switch control device sends ACK to called end, represents the information having received called end and sended over.
(15) so far call setup success, the logical channel that both sides are distributed by Conference server enters speech phase.
(16), after call starts, Conference server carries out audio mixing Frequency mixing processing the Media Stream of both sides, sends to digital record server to carry out data record.
(17) calling terminal on-hook, sends BYE message to switch control device, and request terminates this session.
(18) switch control device responds to calling terminal loopback 487, represents that request stops.
(19) switch control device sends BYE message to Conference server, request end session.
(20) switch control device sends BYE message to called end, request end session.
(21) switch control device sends BYE message to digital record server, request end number record.
(22) digital record server responds to switch control device loopback 200OK, represents successful end session.
(23) called end on-hook, responds to switch control device loopback 200OK, represents successful end session.
(24) Conference server on-hook, responds to switch control device loopback 200OK, represents successful end session.
According to the present invention, not only can carry out voice record to dispatching services, record can also be carried out to video, data, image and mixed mode, also solve nonsynchronous problem between the mode packet loss of communication network recorded broadcast and data, and the present invention has, and audio mixing quality is good, efficiency is high, not occupied terminal memory space and do not need the advantages such as special recorded broadcast equipment.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.

Claims (5)

1. a recording method for the integrated digital of dispatching of power netwoks business, is characterized in that, described method comprises the steps:
(1) each dispatching of power netwoks terminal and Conference server are registered to switch control device, the calling terminal made a call sends call request to described switch control device, after authentication being carried out to its type of service by described switch control device, call request information is transmitted to Conference server and processes;
(2) information after process is sent to described switch control device by described Conference server, sends Conference control information, send described Conference control information and call request to called end by described switch control device to calling terminal;
(3) after described calling terminal and described called end receive record controls information, media resource is sent to described Conference server, after described media resource processes by described Conference server, is transmitted to corresponding called end and digital record server;
(4) described digital record server generates the media resource after described Conference server process and records and store, and treats further inquiry;
Media Stream is carried out the mixed processing of voice, video, data by step (3) described Conference server;
Described switch control device control figure record server record data message, is undertaken mixing and forwarding by described Conference server;
Described calling terminal and described called end are dispatch terminal.
2. recording method as claimed in claim 1, it is characterized in that, step (1) comprises the steps:
1) calling terminal sends INVITE information request to switch control device, and request invites called end to add session;
2) described switch control device returns 100 Trying to calling terminal;
3) described switch control device sends a message to described Conference server, for the RTP bag to calling terminal transmission called end;
4) described Conference server returns 100 Trying to described switch control device.
3. recording method as claimed in claim 1, it is characterized in that, step (2) comprises the steps:
5) described Conference server sends 200 0k to described switch control device, and by this signal, the IP address information of described Conference server and port numbers routing iinformation is passed to switch control device;
6) signal of described 200 0k is sent to described calling terminal by described switch control device, and the information of described Conference server is passed to calling terminal;
7) described calling terminal sends ACK to described switch control device;
8) described switch control device sends described ACK to the terminal of described Conference server;
9) described switch control device carries the logical channel information that Conference server distributes, and sends INVITE request to described called end;
10) described called end returns 100 Trying to described switch control device;
11) described called end sends 200 0k to described switch control device, and by this 200 OK, coded message corresponding to coded message corresponding to coded message corresponding for the IP address of described called end, port numbers, payload type and coded message corresponding to payload type message is passed to described switch control device.
4. recording method as claimed in claim 1, it is characterized in that, step (3) comprises the steps:
12) described switch control device sends 200 OK to Conference server, sends the information of described called end to described Conference server;
13) described Conference server sends ACK to described switch control device;
14) described switch control device sends described ACK to described called end;
15) call setup success, the logical channel that described calling terminal and described called end are distributed by described Conference server enters speech phase.
5. recording method as claimed in claim 1, it is characterized in that, step (4) comprises the steps:
16), after call starts, described Conference server carries out audio mixing Frequency mixing processing the Media Stream of both sides, sends to digital record server to carry out data record;
17) described calling terminal on-hook, sends BYE message to described switch control device, and request terminates this communication;
18) described switch control device responds to described calling terminal loopback 487;
19) described switch control device sends BYE message to described Conference server, and request terminates communication;
20) described switch control device sends BYE message to described called end, and request terminates communication;
21) described switch control device sends BYE message to described digital record server, request end number record;
22) described digital record server responds to described switch control device loopback 200 OK;
23) described called end on-hook, responds to described switch control device loopback 200 OK;
24) described Conference server on-hook, responds to described switch control device loopback 200 OK.
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