CN111432367A - L oRa-based underground cable tunnel wireless monitoring method - Google Patents
L oRa-based underground cable tunnel wireless monitoring method Download PDFInfo
- Publication number
- CN111432367A CN111432367A CN202010234590.XA CN202010234590A CN111432367A CN 111432367 A CN111432367 A CN 111432367A CN 202010234590 A CN202010234590 A CN 202010234590A CN 111432367 A CN111432367 A CN 111432367A
- Authority
- CN
- China
- Prior art keywords
- ora
- cable tunnel
- underground cable
- wireless monitoring
- node
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to an L oRa-based wireless monitoring method for an underground cable tunnel, which is used for the wireless monitoring system of the underground cable tunnel and comprises terminal acquisition nodes, concentrator nodes and a monitoring management center, wherein the method comprises the following steps of S1, acquiring data in the underground cable tunnel by the terminal acquisition nodes through sensors, S2, preprocessing the data acquired by the sensors by the terminal acquisition nodes, S3, transmitting the preprocessed data to the concentrator nodes through L oRa gateways by the terminal acquisition nodes, transmitting the data to the monitoring management center by the L oRa gateways in a point-to-multipoint and multi-hop cascading networking mode, and S4, transmitting the data to the monitoring management center by the concentrator nodes to carry out comprehensive wireless monitoring on the underground cable tunnel.
Description
Technical Field
The invention relates to the field of power tunnel communication, in particular to an L oRa-based wireless monitoring method for an underground cable tunnel.
Background
The urban high-voltage transmission line mainly comprises a cable tunnel and an outdoor overhead line, particularly the central urban high-voltage transmission line is mainly constructed and deployed in the form of the cable tunnel, and the tunnel high-voltage cable equipment has the characteristics of high voltage, large current and long distance. The influence of the closed characteristic of the tunnel on how to timely find and diagnose potential safety hazards in operation is always the key and difficult point of the inspection work of high-voltage electrical equipment. Because the cable tunnel most deepens several meters even tens of meters in the underground, and the tunnel space is narrow and small, has greatly increased the degree of difficulty of patrolling and examining work.
Under the traditional inspection mode, the inspection work of the cable tunnel is mainly completed manually, the method has the advantages of large workload, low working efficiency, easy occurrence of missed inspection and lower intelligent level. Inside and outdoor circuit of cable tunnel, the parameter that needs monitoring, kind are many, and single wired on-line monitoring method can't all satisfy, must adopt the method that multiple monitoring means combined together to realize, and the engineering is complicated, and work load is big. In addition, along with the development of cities, the built cable tunnel is longer and longer, cables needing to be laid by the traditional online monitoring method are further and further away, the construction difficulty is higher, data are easy to lose and make mistakes, and the safe and stable operation of a power grid is not facilitated. Therefore, a wireless monitoring system is urgently needed to realize comprehensive wireless monitoring, fault early warning and sensor positioning of the underground cable tunnel.
Therefore, the current wireless monitoring of underground cable tunnels has the following main problems:
1. the detection efficiency is low (the detection is finished manually, the workload is large, the working efficiency is low, the detection is easy to miss, and the intelligent level is low), and the labor cost is increased;
2. the single wired online monitoring method cannot completely meet the requirements of internal and outdoor circuits of the cable tunnel, parameters and types to be monitored need to adopt a method of combining multiple monitoring means, and has complex engineering and large workload.
3. The traditional online monitoring method has the defects of long cable to be laid, high construction difficulty, easy data loss and error, and is not beneficial to the safe and stable operation of the power grid.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an L oRa-based underground cable tunnel wireless monitoring method.
The purpose of the invention can be realized by the following technical scheme:
an L oRa-based wireless monitoring method for an underground cable tunnel is used for a wireless monitoring system for the underground cable tunnel, the wireless monitoring system for the underground cable tunnel comprises a terminal acquisition node, a concentrator node and a monitoring management center, and the method comprises the following steps:
s1: each terminal acquisition node acquires data in the underground cable tunnel through a sensor;
s2: each terminal acquisition node preprocesses data acquired by the sensor;
s3, each terminal acquisition node transmits the preprocessed data to the concentrator node through a L oRa gateway, wherein the L oRa gateway transmits the data in a point-to-multipoint and multi-hop cascading networking mode;
s4: and the concentrator node transmits the data to a monitoring management center to carry out comprehensive wireless monitoring on the underground cable tunnel.
Further, in step S2, the preprocessing process includes performing analog-to-digital conversion on the analog data collected by the sensor, and then performing high-low level matching.
Further, the point-to-multipoint and multi-hop cascading networking mode is specifically that when the distance between the terminal acquisition node and the concentrator node is not more than 100 meters, data transmission is performed by adopting the point-to-multipoint networking mode; and when the distance between the terminal acquisition node and the concentrator node is more than 100 meters, or a bend exists between the terminal acquisition node and the concentrator node, a multi-hop cascade networking mode is adopted for data transmission.
Furthermore, the networking mode of the multi-hop cascade connection adopts a wireless Mesh network to realize the network ad hoc network.
Further, the point-to-multipoint networking mode is specifically that the concentrator node is connected to each terminal acquisition node respectively.
Further, the networking mode of the multi-hop cascade is specifically that two adjacent terminal acquisition nodes are connected with each other.
Further, the terminal acquisition node comprises an MCU, a lithium battery, a sensor and an L oRa gateway, wherein the MCU is respectively connected with the lithium battery, the sensor and the L oRa gateway.
Further, the concentrator node comprises a microprocessor, a power supply and L oRa gateways, the microprocessor being connected to the power supply and L oRa gateways, respectively.
Compared with the prior art, the invention has the following advantages:
(1) based on the L oRa communication technology, the data transmission is carried out by adopting a point-to-multipoint and multi-hop cascading networking mode and adopting a corresponding networking mode according to the distance between the terminal acquisition node and the concentrator node, so that the problems that the over-deep signal of the cable tunnel cannot be transmitted and cannot be accurately monitored are solved, and the stability and the reliability of the data transmission are ensured.
(2) When the distance between the terminal acquisition node and the concentrator node is short, a point-to-multipoint networking mode is adopted, so that the real-time performance of data transmission is improved; when the distance between the terminal acquisition node and the concentrator node is long, a multi-hop cascade networking mode is adopted, and the stability and reliability of data transmission are improved.
(3) The invention adopts the wireless Mesh network to realize the self-networking of the multi-hop cascade network, has simple structure and strong self-healing capability and increases the stability of the system.
(4) The invention adopts L oRa communication technology, greatly improves the cable tunnel inspection efficiency and reduces the manpower inspection time.
(5) The invention has the advantages of low power consumption, low cost, simplicity, convenience and convenience for later maintenance, and realizes the comprehensive state monitoring, the fault early warning and the sensor positioning of the important channel of the cable.
Drawings
FIG. 1 is a schematic diagram of a hardware structure of the wireless monitoring method for underground cable tunnels according to the present invention;
FIG. 2 is a schematic diagram of a point-to-multipoint link topology of the present invention;
FIG. 3 is a schematic diagram of a multi-hop cascade link topology of the present invention;
in the figure, 1, a terminal acquisition node, 2, a concentrator node, 3 and a client.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
The embodiment provides an L oRa-based wireless monitoring method for an underground cable tunnel, which is used for a wireless monitoring system for the underground cable tunnel, the wireless monitoring system for the underground cable tunnel comprises a terminal acquisition node, a concentrator node and a monitoring management center, and the wireless monitoring method for the underground cable tunnel realizes the comprehensive wireless monitoring, the fault early warning and the sensor positioning of the underground cable tunnel.
L oRa-based underground cable tunnel wireless monitoring method comprises the following steps:
s1: each terminal acquisition node acquires data in the underground cable tunnel through a sensor;
s2: each terminal acquisition node preprocesses data acquired by the sensor;
s3, each terminal acquisition node transmits the preprocessed data to the concentrator node through a L oRa gateway, wherein the L oRa gateway transmits the data in a point-to-multipoint and multi-hop cascading networking mode;
s4: and the concentrator node transmits the data to a monitoring management center to carry out comprehensive wireless monitoring on the underground cable tunnel.
As shown in fig. 1, the main principle of the L oRa-based wireless monitoring method for underground cable tunnels is that, an interface matching circuit between a cable tunnel monitoring sensor and a L oRa node module firstly performs analog-to-digital conversion (a/D) on an analog collected by the sensor, secondly performs high-low level matching, and then data collected by the sensor can be transmitted to a L oRa gateway through a wireless L oRa node module and finally stored in a cloud server and can be accessed through a client.
The point-to-multipoint and multi-hop cascading networking mode is specifically that when the distance between the terminal acquisition node and the concentrator node is not more than 100 meters, the point-to-multipoint networking mode is adopted for data transmission; and when the distance between the terminal acquisition node and the concentrator node is more than 100 meters, or a bend exists between the terminal acquisition node and the concentrator node, a multi-hop cascade networking mode is adopted for data transmission.
The point-to-multipoint and multi-hop cascading networking mode is specifically that according to a cable tunnel survey station result, if a terminal acquisition node is close to a concentrator node, data transmission can be directly carried out in a point-to-point or point-to-multipoint mode, and if the terminal acquisition node is far away or meets a curve, a multi-hop cascading networking mode is adopted to carry out data transmission through route forwarding. All data are concentrated on a main node, namely a gateway, at the exit of the tunnel after being jumped, and the main node, namely the gateway, can transmit the data to a monitoring management center in a wired or wireless mode to carry out comprehensive wireless monitoring on the state of the cable tunnel equipment.
As shown in fig. 2 and 3, the multi-hop cascade networking mode adopts a wireless Mesh network to implement network ad hoc networking, wherein any wireless node may directly communicate with one or more peer nodes. In the cable tunnel monitoring, each wireless node in the same network ID area forms a wireless communication network in a self-organizing mode to realize data transmission. The point-to-multipoint networking mode is specifically that the concentrator nodes are respectively connected with the terminal acquisition nodes.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. An L oRa-based wireless monitoring method for an underground cable tunnel is used for a wireless monitoring system for the underground cable tunnel, and the wireless monitoring system for the underground cable tunnel comprises a terminal acquisition node, a concentrator node and a monitoring management center, and is characterized by comprising the following steps:
s1: each terminal acquisition node acquires data in the underground cable tunnel through a sensor;
s2: each terminal acquisition node preprocesses data acquired by the sensor;
s3, each terminal acquisition node transmits the preprocessed data to the concentrator node through a L oRa gateway, wherein the L oRa gateway transmits the data in a point-to-multipoint and multi-hop cascading networking mode;
s4: and the concentrator node transmits the data to a monitoring management center to carry out comprehensive wireless monitoring on the underground cable tunnel.
2. L oRa-based underground cable tunnel wireless monitoring method according to claim 1, wherein in step S2, the preprocessing includes analog-to-digital conversion of the analog data collected by the sensor, and then high-low level matching.
3. The L oRa-based underground cable tunnel wireless monitoring method according to claim 1, wherein the point-to-multipoint and multi-hop cascading networking mode is specifically that when a distance between the terminal acquisition node and the concentrator node is not more than 100 meters, the point-to-multipoint networking mode is adopted for data transmission, and when the distance between the terminal acquisition node and the concentrator node is more than 100 meters, or a bend exists between the terminal acquisition node and the concentrator node, the multi-hop cascading networking mode is adopted for data transmission.
4. The L oRa-based underground cable tunnel wireless monitoring method according to claim 3, wherein the multi-hop cascade networking mode adopts a wireless Mesh network to realize network ad hoc networking.
5. An L oRa-based underground cable tunnel wireless monitoring method according to claim 3, wherein the point-to-multipoint networking mode is specifically that the concentrator node is connected with each terminal acquisition node respectively.
6. The L oRa-based underground cable tunnel wireless monitoring method according to claim 3, wherein the multi-hop cascade networking mode is specifically that two adjacent terminal acquisition nodes are connected with each other.
7. The L oRa-based underground cable tunnel wireless monitoring method according to claim 1, wherein the terminal collection nodes include a MCU, a lithium battery, a sensor and a L oRa gateway, the MCU is connected with the lithium battery, the sensor and a L oRa gateway respectively.
8. An L oRa-based underground cable tunnel wireless monitoring method according to claim 1, wherein the concentrator node includes a microprocessor, a power supply and L oRa gateway, the microprocessor being connected to the power supply and L oRa gateway respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010234590.XA CN111432367A (en) | 2020-03-30 | 2020-03-30 | L oRa-based underground cable tunnel wireless monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010234590.XA CN111432367A (en) | 2020-03-30 | 2020-03-30 | L oRa-based underground cable tunnel wireless monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111432367A true CN111432367A (en) | 2020-07-17 |
Family
ID=71549862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010234590.XA Pending CN111432367A (en) | 2020-03-30 | 2020-03-30 | L oRa-based underground cable tunnel wireless monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111432367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111932858A (en) * | 2020-08-17 | 2020-11-13 | 中交一公局第七工程有限公司 | Tunnel wireless monitoring system based on LoRa technology |
| CN114793329A (en) * | 2021-01-26 | 2022-07-26 | 国网山西省电力公司信息通信分公司 | Power grid environment monitoring system and method based on 5G LoRa fixed gateway design |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100122742A (en) * | 2009-05-13 | 2010-11-23 | 서울대학교산학협력단 | Method for wireless multi-hop network |
| CN101951659A (en) * | 2010-08-13 | 2011-01-19 | 华南理工大学 | Self-organization method of sensor network and mobile terminal system based on same |
| CN102185906A (en) * | 2011-04-21 | 2011-09-14 | 西安交通大学 | Safety monitoring wireless sensor network for large equipment |
| CN103249108A (en) * | 2013-04-19 | 2013-08-14 | 江苏科技大学 | Wireless sensor network balanced energy consumption route method based on non-uniform clustering |
| CN104361727A (en) * | 2014-10-14 | 2015-02-18 | 苏州德鲁森自动化***有限公司 | Tunnel environment monitoring method based on wireless sensor network |
| CN204706174U (en) * | 2015-06-26 | 2015-10-14 | 九州方圆实业控股(集团)有限公司 | A kind of underground pipeline monitoring system |
| CN105049356A (en) * | 2015-06-17 | 2015-11-11 | 中国科学院上海微***与信息技术研究所 | Data multi-hop routing acquisition method based on quality of service in monitoring network |
| CN105971671A (en) * | 2016-06-03 | 2016-09-28 | 深圳新能电力开发设计院有限公司 | Power cable tunnel fire protection system based on wireless sensor network |
| CN206470931U (en) * | 2016-12-29 | 2017-09-05 | 江西飞尚科技有限公司 | A kind of monitoring device based on LoRa technologies |
| WO2018103112A1 (en) * | 2016-12-06 | 2018-06-14 | 无锡悟莘科技有限公司 | Wireless sensing network monitoring system, fulcrum and gateway |
| CN207675232U (en) * | 2018-02-11 | 2018-07-31 | 石家庄铁路职业技术学院 | Tunnel monitoring system |
| CN210119259U (en) * | 2019-07-17 | 2020-02-28 | 广东华南水电高新技术开发有限公司 | Tunnel water level monitoring device based on LoRa technique |
-
2020
- 2020-03-30 CN CN202010234590.XA patent/CN111432367A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100122742A (en) * | 2009-05-13 | 2010-11-23 | 서울대학교산학협력단 | Method for wireless multi-hop network |
| CN101951659A (en) * | 2010-08-13 | 2011-01-19 | 华南理工大学 | Self-organization method of sensor network and mobile terminal system based on same |
| CN102185906A (en) * | 2011-04-21 | 2011-09-14 | 西安交通大学 | Safety monitoring wireless sensor network for large equipment |
| CN103249108A (en) * | 2013-04-19 | 2013-08-14 | 江苏科技大学 | Wireless sensor network balanced energy consumption route method based on non-uniform clustering |
| CN104361727A (en) * | 2014-10-14 | 2015-02-18 | 苏州德鲁森自动化***有限公司 | Tunnel environment monitoring method based on wireless sensor network |
| CN105049356A (en) * | 2015-06-17 | 2015-11-11 | 中国科学院上海微***与信息技术研究所 | Data multi-hop routing acquisition method based on quality of service in monitoring network |
| CN204706174U (en) * | 2015-06-26 | 2015-10-14 | 九州方圆实业控股(集团)有限公司 | A kind of underground pipeline monitoring system |
| CN105971671A (en) * | 2016-06-03 | 2016-09-28 | 深圳新能电力开发设计院有限公司 | Power cable tunnel fire protection system based on wireless sensor network |
| WO2018103112A1 (en) * | 2016-12-06 | 2018-06-14 | 无锡悟莘科技有限公司 | Wireless sensing network monitoring system, fulcrum and gateway |
| CN206470931U (en) * | 2016-12-29 | 2017-09-05 | 江西飞尚科技有限公司 | A kind of monitoring device based on LoRa technologies |
| CN207675232U (en) * | 2018-02-11 | 2018-07-31 | 石家庄铁路职业技术学院 | Tunnel monitoring system |
| CN210119259U (en) * | 2019-07-17 | 2020-02-28 | 广东华南水电高新技术开发有限公司 | Tunnel water level monitoring device based on LoRa technique |
Non-Patent Citations (1)
| Title |
|---|
| 周炯槃等: "《通信原理》", 31 August 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111932858A (en) * | 2020-08-17 | 2020-11-13 | 中交一公局第七工程有限公司 | Tunnel wireless monitoring system based on LoRa technology |
| CN114793329A (en) * | 2021-01-26 | 2022-07-26 | 国网山西省电力公司信息通信分公司 | Power grid environment monitoring system and method based on 5G LoRa fixed gateway design |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102818590A (en) | Wireless sensor network-based transmission lines icing on-line monitoring system | |
| CN205665323U (en) | Long -range collection system of power system fault information | |
| CN105351152A (en) | Remote offshore wind power monitoring device based on ZigBee and GPRS techniques | |
| CN109599940A (en) | A kind of distribution transforming status remote monitoring system and method based on LPWAN | |
| CN109546747B (en) | Intelligent power transmission and distribution network fault early warning management system | |
| CN103308830B (en) | Power cable partial discharge monitoring system | |
| CN106899665A (en) | Remote ancient building fire hazard monitoring early warning system based on wireless sensor network | |
| CN201535811U (en) | FL system of electric distribution network based on wireless communication | |
| CN111432367A (en) | L oRa-based underground cable tunnel wireless monitoring method | |
| CN203689663U (en) | Self-networking air quality monitoring system | |
| CN104659912A (en) | Online monitoring and fault location system for power distribution network lines | |
| CN103336227A (en) | Novel power cable partial discharge online monitoring system | |
| CN204272388U (en) | A kind of can the Wireless Broadband Communication Systems of seamless access electrical network line walking mobile terminal device | |
| CN105632108A (en) | GPRS and ZigBee network-based debris flow monitoring and early warning system | |
| CN101577043A (en) | Automatic information collecting device during rolling process of corewall rock-fill dam | |
| CN110690756A (en) | Intelligent management and control system for grounding wire of power transmission line | |
| CN207502668U (en) | A kind of system of the power distribution network main equipment live detection based on power line carrier, PLC | |
| CN106254530A (en) | A kind of tunnel radio networking and constructing tunnel and operation long distance control system | |
| CN206906519U (en) | A kind of extra high voltage direct current transmission line based on big data is maked an inspection tour and reponse system | |
| CN106487422B (en) | For the direct current single conductor carrier communication mode between photovoltaic module | |
| CN105576828A (en) | Novel distribution network distributed fault monitoring system | |
| CN203275579U (en) | On-line monitoring system of power cable partial discharge | |
| CN109121109B (en) | A kind of overhead transmission line connector temperature detection method and system based on microgrid ad hoc network | |
| CN202019459U (en) | Geotechnical engineering safety monitoring system based on wireless sensor network | |
| CN204575219U (en) | A kind of transformer station's In-Line Temperature Measure System based on 6LoWPAN |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |
|
| RJ01 | Rejection of invention patent application after publication |