CN201766715U - Multiple-frequency MESH system in on-line monitoring system of high-voltage transmission line - Google Patents
Multiple-frequency MESH system in on-line monitoring system of high-voltage transmission line Download PDFInfo
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- CN201766715U CN201766715U CN2010201901784U CN201020190178U CN201766715U CN 201766715 U CN201766715 U CN 201766715U CN 2010201901784 U CN2010201901784 U CN 2010201901784U CN 201020190178 U CN201020190178 U CN 201020190178U CN 201766715 U CN201766715 U CN 201766715U
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Abstract
The utility model discloses a signal transmission system, in particular to a multiple-frequency MESH system in an on-line monitoring system of a high-voltage transmission line. The wireless multiple-frequency MESH system in the on-line monitoring system of the high-voltage transmission line is characterized in that nodes are connected in the system; each node respectively comprises a user side module 1, an uplink return flow rate module 2 and a downlink return flow rate module 3; each user side module 1 outputs wireless signals to a user side; each uplink return flow rate module 2 outputs the wireless signals to each downlink return flow rate module 3 of another node and can also output the wired signals to a wired network, and each node at least comprises three modules; in addition, the multiple-frequency MESH system has the advantages as follows: each link works in an independent communication channel, a dedicated return link can send and receive data at the same time, the influence of signal attenuation is reduced, the signal distortion is low, and the anti-interference ability can be achieved.
Description
Technical field
The utility model relates to a kind of signal transmission system.
Background technology
Along with the fast development of power industry, the informatization of power industry becomes more and more most important, in time understands the power equipment working condition, ensures electric power facility safety, reliable and stable work, has become the power industry urgent need.
Transmission line electricity consumption tower place environment, position are very inequality, and area differentiation is big, and harm such as ice and snow, high wind, earthquake may take place, and early stage patrols and examines along the line, and difficulty is a lot.Check that a cycle is long, and can't scent a hidden danger the very first time.And owing to be subjected to the restriction of all kinds of technology and condition, the real time information on electric tower and the circuit also can't real-time Transmission be gone back to Surveillance center.Usual way be with various types of signal with GPRS or similar fashion intercept into picture, the packets of information form is regularly transmitted go back to Surveillance center, but exist shortcomings such as real-time is not high, poor, the suspicious problem points feature deficiency of the integrated environment property judged, channel lease expenses height like this, the problem judgement of electric tower, circuit is easy to generate time-delay and erroneous judgement.Reduced the safe operation index of electrical network electricity tower, circuit to a certain extent.
For this reason, need the cover science, advanced a, perfect system, realize to ultra-high-tension power transmission line icing, little weather environment, circuit filth, line pole tower inclination, shaft tower vibration, windage yaw, scissors crossing, circuit freeze, the monitoring of multiple situations such as animal and plant growth and activity, mankind's activity, and be transferred to Surveillance center fast and accurately by wireless network.
In the Wireless Mesh networking plan, commonly used have two kinds of patterns.Single module (frequently) pattern and bimodulus piece (frequently) pattern.The single module pattern is the scheme of Wireless Mesh most fragile.Access point only uses a channel, and this channel is transmitted by wireless client and backhaul traffic (between the Mesh node) and shared.When more Mesh node joined in the network, the bandwidth that is used for backhaul traffic will occupy more and more higher ratio, only stayed seldom a part of capacity to give wireless client.The reason of this phenomenon be since wireless be a shared medium.The Mesh node of single module scheme can not transmit and receive data simultaneously.And when another Mesh node was transmitting in its coverage, this Mesh node can not send data.This competition to available shared bandwidth is based on the wireless conflict of similar Ethernet and avoids principle (CSMA/CA).Simple computation will find that once each wireless client can only obtain very limited throughput in single module Mesh scheme.For instance, suppose to have 5 nodes, each node has 20 wireless clients to be attached thereto, and all nodes and client are shared same 802.11b channel (5Mbps), is equivalent to the throughput ratio dial-up connection that each user can only obtain to be less than 50Kbps like this and also wants slow.And because all wireless client and Mesh nodes must operate on the same channel, the competition of Radio Resource and RF disturb also can cause the time delay that can not expect.
In the double frequency scheme, a channel is used for connecting wireless client specially, and another channel be used for specially carrying out wireless backhaul transmission Return Channel simultaneously by Mesh up and Mesh downlink traffic share.This means that wireless client traffic will obtain the improvement of some, but the performance of the whole network is still undesirable owing to the bottleneck problem of backhaul.
Single-frequency and double frequency scheme are used same Return Channel in network, any part has been subjected to the influence of disturbing in network, and the performance of whole network will reduce.And the configuration (such as adjusting channel) that these schemes can not be revised this part in the network avoids interference.
Though the ultra-high-tension power transmission line on-line monitoring system adopts the Mesh technology, rely on multi-hop, remote wireless transmission that the signal data of transmission line sensing is returned in real time, but because the distance of crossing over, circumstance complication, be difficult to avoid the signal of non-expectation to disturb the normal communication of Wireless Telecom Equipment, cause error of transmission.That is to say in current wireless network provides wireless coverage the most frequently used technology to the user, and most of Wireless Mesh is disposed the influence that all is to use the architecture of 802.11b as wireless backhaul, these network backhaul bandwidth to be easy to be subjected to coming from the nearby device air interference of work in the similar frequency bands.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art, and Wireless Mesh multi frequency system in a kind of ultra-high-tension power transmission line on-line monitoring system is provided.
Wireless Mesh multi frequency system in a kind of ultra-high-tension power transmission line on-line monitoring system is characterized in that, is connected with a plurality of nodes in the system; Each intranodal includes user side module 1, up backhaul traffic module 2, descending backhaul traffic module 3 respectively; Described user side module 1 output wireless signal is to user side, and up backhaul traffic module 2 is exported the descending backhaul traffic module 3 of wireless signals to another node, and also exportable wire signal is to cable network, at least 3 modules of each node.
The beneficial effects of the utility model are, each link all is operated in independently on the channel, special-purpose back haul link can transmit and receive data simultaneously, reduce the signal attenuation influence, distorted signals is little, improved antijamming capability, this parameter monitoring, signals collecting, the benefit of transmission system also is each on-site parameters is returned in real time, can realize multi-hop, remote wireless transmission, the parameter of transmission line transducer is returned in real time, even an iron tower is arranged, each transducer on one section circuit, module breaks down, cisco unity malfunction, this multi-frequency multi-mode piece Mesh system still can operate as normal, unlikely obliterated data, every iron tower each scene promptly can being monitored still, the track data real-time Transmission is given the user, is of value to the safe operation of keeping large-scale supply network, guarantee power demands.
Description of drawings
Fig. 1 is a multifrequency Mesh system configuration schematic diagram in the ultra-high-tension power transmission line on-line monitoring system
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is made detailed description further.
As shown in the figure, be useful on the module 1 that connects client among the figure, be used for up-link wireless backhaul module 2, be used for descending wireless backhaul module 3.These three modules place on the iron tower for being located within the node 4,5,6,7, form the Mesh wireless-transmission network.Reception client 8,9,10,11 in node 4,5,6,7 transmitting boundaries.Wherein module 2 has access to spider lines 12 in the node 4, imports signal into monitoring center.
Fine line among the figure is expressed as wireless transmission, thick chain-dotted line schematic illustration, as node 4 in the emission range of receiving of node 7, the signal that node 4 also can receiving node 7 then.
Adopt and adopt wireless cascade system communication between Mesh network technology, node, each node can use the mode of point-to-multipoint to connect with other node, do not have the restriction of transmission jump number, can satisfy the transmission of remote, the large-scale wireless data information under all kinds of geographic climates.
Native system is in key position in the on-line monitoring system of ultra-high-tension power transmission line.The detected parameters signal that it sends the various kinds of sensors on on-the-spot each iron tower of each high voltage electric power line steel tower is gathered and with wireless mode the monitoring system to the user is taken place, as on-the-spot meteorologic parameter, vision signal, iron tower inclination and vibration parameters, insulator Leakage Current parameter, circuit icing signal, line conductor status signal etc., field device adopts wind power generation and solar power generation compensation device to power.
Each node of native system is provided with at least three modules, one is used for client and connects flow, second module is used for the up-link wireless backhaul traffic, the 3rd module is used for descending wireless backhaul flow, each link all is operated in independently on the channel, special-purpose back haul link can transmit and receive data simultaneously, reduce the signal attenuation influence, distorted signals is little, antijamming capability is provided, this parameter monitoring, signals collecting, the benefit of transmission system also is the actual passback of individual on-site parameters, can realize multi-hop, remote wireless transmission, the parameter of transmission line transducer is returned in real time, even an iron tower is arranged, each transducer on one section circuit, module breaks down, cisco unity malfunction, and this multi-frequency multi-mode piece Mesh system still can operate as normal, each iron tower with each on-the-spot at-once monitor, track data is returned to the user in real time, is of value to the safe operation of large-scale power supply network, guarantee safe power supply.
Claims (2)
1. multifrequency Mesh system in the ultra-high-tension power transmission line on-line monitoring system is characterized in that, is connected with a plurality of nodes in the system; Each intranodal includes user side module (1), up backhaul traffic module (2), descending backhaul traffic module (3) respectively; Described user side module (1) output wireless signal is to user side, and up backhaul traffic module (2) is exported the descending backhaul traffic module (3) of wireless signal to another node, and also exportable wire signal is to wired network of using.
2. according to multifrequency Mesh system in the described ultra-high-tension power transmission line on-line monitoring system of claim 1, it is characterized in that each node is provided with 3 modules at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201901784U CN201766715U (en) | 2010-05-14 | 2010-05-14 | Multiple-frequency MESH system in on-line monitoring system of high-voltage transmission line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201901784U CN201766715U (en) | 2010-05-14 | 2010-05-14 | Multiple-frequency MESH system in on-line monitoring system of high-voltage transmission line |
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| CN201766715U true CN201766715U (en) | 2011-03-16 |
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| CN2010201901784U Expired - Fee Related CN201766715U (en) | 2010-05-14 | 2010-05-14 | Multiple-frequency MESH system in on-line monitoring system of high-voltage transmission line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065162A (en) * | 2014-06-13 | 2014-09-24 | 云南电力试验研究院（集团）有限公司电力研究院 | Dual-band long-distance transmission wireless communication system special for power transmission line monitoring device interconnection |
| CN110140155A (en) * | 2016-12-26 | 2019-08-16 | 尚飞运营有限公司 | Multifrequency equipment, control and/or supervision equipment, relevant multi frequency system and house automation facility |
-
2010
- 2010-05-14 CN CN2010201901784U patent/CN201766715U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065162A (en) * | 2014-06-13 | 2014-09-24 | 云南电力试验研究院（集团）有限公司电力研究院 | Dual-band long-distance transmission wireless communication system special for power transmission line monitoring device interconnection |
| CN110140155A (en) * | 2016-12-26 | 2019-08-16 | 尚飞运营有限公司 | Multifrequency equipment, control and/or supervision equipment, relevant multi frequency system and house automation facility |
| US10666301B2 (en) | 2016-12-26 | 2020-05-26 | Somfy Activites Sa | Multifrequency device, controlling and/or monitoring device, associated multifrequency system and piece of home-automation equipment |
| CN110140155B (en) * | 2016-12-26 | 2020-12-11 | 尚飞运营有限公司 | Multi-frequency device, control and/or monitoring device, related multi-frequency system and home automation installation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |