CN103051488B - A kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity - Google Patents
A kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity Download PDFInfo
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- CN103051488B CN103051488B CN201110313152.3A CN201110313152A CN103051488B CN 103051488 B CN103051488 B CN 103051488B CN 201110313152 A CN201110313152 A CN 201110313152A CN 103051488 B CN103051488 B CN 103051488B
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Abstract
The present invention relates to a kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity, this communication system is based on ICP/IP protocol stack, comprise transport layer, application layer, network layer and link layer, described communication system increases by an adaptation layer between the transport layer and application layer of ICP/IP protocol stack, for packaging to packet and unpacking, transport layer can adopt Transmission Control Protocol to communicate.Compared with prior art, the present invention adopts TCP mode to communicate, and state-detection is reliable, and original UDP mode can be adopted to communicate, good with existing equipment compatibility.
Description
Technical field
The present invention relates to a kind of communication system, especially relate to a kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity.
Background technology
In the communication plan of current power transmission monitoring terminal, monitoring terminal mainly adopts UDP mode to communicate with the communication of main station system.Monitoring terminal is after automatically reviving or being revived by external event triggering, need periodically to send heartbeat message so that main website thinks that monitoring terminal is in line states to main station system, if multiple (being generally three heart beat cycles) monitoring terminal does not upload any data or heartbeat message to main website continuously, monitoring terminal is just labeled as off-line state by main website.
The advantage of this scheme is that Monitoring Data is formed simply, and a UDP message is exactly one or one group of Monitoring Data, therefore extract data very convenient, but shortcoming is also clearly:
1) monitoring terminal presence is unreliable, there is terminal " false online " state.
Because main website needs a N continuous heart beat cycle not receive data or the heartbeat message of monitoring terminal, just monitoring terminal is labeled as off-line state.So, after monitoring terminal sends the last item data message (or heartbeat message), proceed to resting state (as the Trs point in Fig. 1, represent T_real_sleep), then from this moment, monitoring terminal is labeled as the moment point of " dormancy " (as the Ts point in Fig. 1 to main website, represent T_sleep), there is " false online " time T of at least N-1 heart beat cycle, about 2.4 heart beat cycles.Therefore, the inaccurate defect of monitoring terminal presence (there is false presence) is geneogenous.
2), during big data quantity transmission, application layer communication protocol is complicated.
More typical use-case is uploading of remote image data, all occupy many lengths in Southern Power Grid Company " south electric network transmission line disaster early warning system communication protocol ", State Grid Corporation of China's " power transmission state monitoring device current techique specification " appendix C " application-layer data transmission stipulations " how to ask uploading pictures for describing, how to send image data, how to mark picture and terminate and how to send to mend bag content etc., separately there is time-out, mend the condition managings such as bag, more complicated.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity is provided, this communication system adopts TCP mode to communicate, state-detection is reliable, original UDP mode can be adopted to communicate, good with existing equipment compatibility.
Object of the present invention can be achieved through the following technical solutions:
A kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity, this communication system is based on ICP/IP protocol stack, comprise transport layer, application layer, network layer and link layer, it is characterized in that, described communication system increases by an adaptation layer between the transport layer and application layer of ICP/IP protocol stack, for packaging to packet and unpacking, transport layer can adopt Transmission Control Protocol to communicate.
When transport layer adopts Transmission Control Protocol to communicate, its message boundaries is determined by IETFRFC1055 file; When transport layer adopts udp protocol to communicate, described adaptation layer is inoperative for former monitoring system communication protocol, makes itself and existing equipment have good compatibility.
Compared with prior art, the present invention has the following advantages:
1) owing to adopting connection-oriented Transmission Control Protocol communication, there is not " false online " time;
2) if monitoring terminal needs long-time continuous online (not dormancy), adopt UDP mode constantly can produce data traffic, and adopt mode provided by the invention, not needing to produce any additional flow just can allow monitoring terminal online continuously, therefore can save the operation cost of monitoring system.
3) the present invention only needs to revise on a small quantity existing monitoring system software, to not needing any hardware facility changing monitoring system.
4) when needs use UDP mode to communicate, adaptation layer is inoperative to former monitoring system communication protocol, makes itself and existing equipment have good compatibility.
Accompanying drawing explanation
Fig. 1 is false presence schematic diagram in existing communication system;
Fig. 2 is the structural representation of ICP/IP protocol stack in existing communication system;
Fig. 3 is the structural representation of communication protocol stack of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 3, a kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity, this communication system is based on ICP/IP protocol stack, comprise application layer 1, transport layer 2, network layer 3, link layer 4 and be different from the adaptation layer 5 of prior art (as shown in Figure 2), this adaptation layer is located between the transport layer 2 of ICP/IP protocol stack and application layer 1.When communicating, transport layer 2 adopts udp protocol to communicate, and its message boundaries is determined by IETFRFC1055 file, because Transmission Control Protocol has connection-oriented communication protocol, effectively can solve in prior art when adopting UDP to communicate and there is " false online " problem.When transport layer needs to adopt udp protocol to communicate, described adaptation layer is inoperative for former monitoring system communication protocol, makes itself and existing equipment have good compatibility.
If monitoring terminal needs long-time continuous online (not dormancy), adopt UDP mode constantly can produce data traffic, and employing the invention provides communication system, not needing to produce any additional flow just can allow monitoring terminal online continuously, therefore the operation cost of monitoring system can be saved, and the present invention revises on a small quantity to existing monitoring system software, can implement not needing any hardware facility changing monitoring system.
Claims (1)
1. the communication system for monitoring terminal real-time online state-detection of transmitting electricity, this communication system is based on ICP/IP protocol stack, comprise the application layer, transport layer, network layer and the link layer that configure successively, it is characterized in that, described communication system increases by an adaptation layer between the transport layer and application layer of ICP/IP protocol stack, for packaging to packet and unpacking, transport layer adopts Transmission Control Protocol to communicate; When transport layer adopts Transmission Control Protocol to communicate, its message boundaries is determined by IETFRFC1055 file, and when transport layer adopts udp protocol to communicate, described adaptation layer is inoperative for former monitoring system communication protocol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110313152.3A CN103051488B (en) | 2011-10-16 | 2011-10-16 | A kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110313152.3A CN103051488B (en) | 2011-10-16 | 2011-10-16 | A kind of communication system for monitoring terminal real-time online state-detection of transmitting electricity |
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| CN103051488A CN103051488A (en) | 2013-04-17 |
| CN103051488B true CN103051488B (en) | 2016-04-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106647628B (en) * | 2016-12-26 | 2019-01-04 | 华中科技大学 | G code executes the real-time collecting method of status data in a kind of NC Machining Process |
| CN110493075B (en) * | 2019-08-01 | 2021-06-25 | 京信通信系统（中国）有限公司 | Method, device and system for monitoring online duration of equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101371555A (en) * | 2005-12-29 | 2009-02-18 | 艾利森电话股份有限公司 | Method and device for generating and sending signaling messages |
| CN101645799A (en) * | 2009-08-12 | 2010-02-10 | 保定市三川电气有限责任公司 | Sending method, receiving method and equipment of digital communication |
| CN101958835A (en) * | 2010-09-28 | 2011-01-26 | 深圳中兴力维技术有限公司 | Data transmission method and logic network adapter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101513095A (en) * | 2006-06-09 | 2009-08-19 | 泰克莱克公司 | Methods, systems, and computer program products for managing congestion in a multi-layer telecommunications signaling network protocol stack |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371555A (en) * | 2005-12-29 | 2009-02-18 | 艾利森电话股份有限公司 | Method and device for generating and sending signaling messages |
| CN101645799A (en) * | 2009-08-12 | 2010-02-10 | 保定市三川电气有限责任公司 | Sending method, receiving method and equipment of digital communication |
| CN101958835A (en) * | 2010-09-28 | 2011-01-26 | 深圳中兴力维技术有限公司 | Data transmission method and logic network adapter |
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