CN109211190A - A kind of shaft tower tilt angle monitoring device based on NB-IoT network - Google Patents
A kind of shaft tower tilt angle monitoring device based on NB-IoT network Download PDFInfo
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- CN109211190A CN109211190A CN201810589109.1A CN201810589109A CN109211190A CN 109211190 A CN109211190 A CN 109211190A CN 201810589109 A CN201810589109 A CN 201810589109A CN 109211190 A CN109211190 A CN 109211190A
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- 238000004891 communication Methods 0.000 claims abstract description 52
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- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 7
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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Abstract
The invention proposes a kind of shaft tower tilt angle monitoring devices based on NB-IoT network, comprising: angle acquisition chip, MCU, NB-IoT communication module, antenna and remote server；Angle acquisition chip is 3-axis acceleration sensor, and the acceleration information of measurement is transferred to MCU；The acceleration information of MCU receiving angle acquisition chip transmission calculates shaft tower inclination angle by formula, and is transferred to NB-IoT communication module；The shaft tower inclination data received is parsed into wireless signal by NB-IoT communication module, is sent to remote server by wireless network using antenna.A kind of shaft tower tilt angle monitoring device based on NB-IoT network proposed by the present invention, by using the NB-IoT mechanics of communication of low-power consumption, in conjunction with the deep sleep power-saving technology of MCU controller, reach the power consumption reduction effect of whole measuring device, to solve the problems, such as that transmission tower measuring device power consumption is big, power supply service life is short, meanwhile communication module is direct-connected with server, simplifies communication architecture.
Description
Technical field
The invention belongs to transmission line of electricity monitoring technical field, especially a kind of shaft tower inclination angle monitoring based on NB-IoT network
Device.
Background technique
Shaft tower is the structures for being used to support conducting wire and lightning conducter in overhead transmission line.Transmission line of electricity by geology, meteorology,
The influence of the complex environments such as external force will cause the inclination of shaft tower and collapse, electricity caused by being tilted and collapsed in recent years due to overhead line structures
Power accident is in rising trend.In order to ensure the safe operation of entire power grid, need to design an effective shaft tower inclination angle measurement dress
It sets, monitors the angle change of shaft tower, prevent toppling over for shaft tower, avoid the generation of electric power accident.
Currently, shaft tower tilt angle monitoring device is based on GSM/GPRS/3G/4G communication or WLAN communication mostly
, the monitoring device based on GSM/GPRS/3G/4G communication can reduce battery supply since the power consumption of communication module is very big
Using duration, and the monitoring device based on WLAN communication will increase in data set and transferring device, and power consumption can be bigger, and
And level is more complicated on communication architecture, a possibility that increasing system failure, reduces the stability of system.
It provides in the prior art " the shaft tower heeling condition monitoring system based on LoRa technology ", the day for announcing:
2017.11.10, publication No.: the status data transfers of the Chinese patent of CN206627106U, shaft tower use the wireless telecommunications side LoRa
Formula, including terminal node, routing node and Centralized Controller, terminal node include setting with shaft tower on inclination sensor,
First singlechip, the first LoRa module and power supply one, routing node include second singlechip, the 2nd LoRa module and power supply two,
Centralized Controller includes third single-chip microcontroller, the 3rd LoRa module and power supply three；The single-chip microcontroller and LoRa module passes through I2C
Connection, the 2nd LoRa module and multiple first LoRa modules form hub-and-spoke configuration, multiple 2nd LoRa modules and the 3rd LoRa mould
Block wireless communication, realizes self-organized network communication function.This monitoring device based on WLAN communication will increase in data set
And transferring device, power consumption can be bigger, while can also have the phenomenon that data delay, and after terminal node quantity increase, system
The probability of communication collision conflict will greatly increase, and reduce the reliability of system.
To solve the above-mentioned problems, it is necessary to for conventional problem, develop that communication architecture level is simple, and communication can
It leans on, the novel shaft tower tilt angle monitoring device of low-power consumption.
Summary of the invention
Mentioned above in order to solve the problems, such as, the invention proposes a kind of, and the shaft tower inclination angle based on NB-IoT network monitors dress
It sets.
Specific technical solution is as follows:
A kind of shaft tower tilt angle monitoring device based on NB-IoT network, comprising: angle acquisition chip, MCU, NB-IoT communication
Module, antenna and remote server；
The angle acquisition chip is 3-axis acceleration sensor, for measuring X-axis, Y-axis and the acceleration of Z axis, and will
The acceleration information of measurement is transferred to MCU；
The acceleration information of the MCU receiving angle acquisition chip transmission, passes through formula
Shaft tower inclination angle is calculated, and shaft tower inclination data is transferred to NB-IoT communication module；
The shaft tower inclination data received is parsed into wireless signal by the NB-IoT communication module, passes through nothing using antenna
Gauze network is sent to remote server.
It preferably, further include power supply system.
Preferably, when the MCU is exported without information input, it is in sleep state.
Preferably, when the NB-IoT communication module is exported without information input, it is in sleep state.
Preferably, the formula further includes
Preferably, the power supply system include dry cell, photovoltaic battery panel, battery and route add in coil-induced one
Kind is a variety of.
Preferably, the formula is
Compared with the existing technology, a kind of shaft tower tilt angle monitoring device based on NB-IoT network of the present invention have with
Lower advantage:
A kind of shaft tower tilt angle monitoring device based on NB-IoT network proposed by the present invention, by using the NB- of low-power consumption
IoT mechanics of communication reaches the power consumption reduction effect of whole measuring device in conjunction with the deep sleep power-saving technology of MCU controller, thus
Solve the problems, such as that transmission tower measuring device power consumption is big, power supply service life is short, meanwhile, communication module is direct-connected with server, letter
Communication architecture is changed.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the shaft tower tilt angle monitoring device based on NB-IoT network proposed by the present invention；
Fig. 2 is the schematic diagram that two axle acceleration sensors calculate tilt angle；
Fig. 3 is a kind of 3-axis acceleration sensing of shaft tower tilt angle monitoring device based on NB-IoT network proposed by the present invention
The schematic diagram of device calculating tilt angle.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of schematic diagram of the shaft tower tilt angle monitoring device based on NB-IoT network proposed by the present invention, comprising: angle
Spend acquisition chip, MCU, NB-IoT communication module, antenna and remote server；The angle acquisition chip is 3-axis acceleration biography
Sensor for measuring component A x, Ay, the Az of acceleration on X-axis, Y-axis and Z axis, and the acceleration information of measurement is transferred to
MCU；The acceleration information of the MCU receiving angle acquisition chip transmission, passes through formulaWithI.e.Shaft tower inclination angle is calculated, and shaft tower inclination data is transmitted
To NB-IoT communication module；The shaft tower inclination data received is parsed into wireless signal by the NB-IoT communication module, is used
Antenna is sent to remote server by wireless network.
MCU the and NB-IoT communication module is in sleep state when no information input exports.
The invention also includes power supply system, the power supply system includes that dry cell, photovoltaic battery panel, battery and route add
It is one of coil-induced or a variety of.
The tilt angle of measurement object is the common application of one kind of accelerator sensor.
Basic principle: due to acceleration transducer in static placement by gravity, the gravity for having 1g adds
Speed.It can be calculated using this property by component of the measurement acceleration of gravity in the X-axis and Y-axis of acceleration transducer
Its tilt angle on a vertical plane out.As shown in Fig. 2, havingThenI.e.In this way, inclination on an x-y plane can be measured according to one two axle acceleration sensor of principles above
Angle.It should be noted that two axle acceleration sensors can only measure the weight component in X-axis and Y-axis, thus X- can only be measured
Tilt angle on Y plane.But since object is when space tilts, it is difficult to ensure that inclination is completely on an x-y plane, this
Sample, which only uses two axle acceleration sensors and measures, can have limitation, therefore, it is contemplated that being sensed using 3-axis acceleration
Device.As shown in figure 3,3-axis acceleration sensor can measure the weight component of X-axis, Y-axis and Z axis, space tilt angle is calculated
Formula can be extended toThis formula is exactly to be used herein to measurement inclined angle of object
Basic principle.It should be noted that here be object when static by the property of gravity, if object is simultaneously
If having acceleration of motion, then this formula will be no longer accurate.So being necessary for formula increases a restrictive condition, i.e.,
Hardware realization: being measured using MMA8451Q high-precision gravity acceleration chip, and inside is directly converted,
IIC data communication exports the value of the acceleration in three directions to MCU.
Specific steps are as follows:
1) the acceleration A x, Ay, Az of X, Y, Z axis are read；
2) Ax is calculated2+Az2+Ay2If this quadratic sum close to square of 1g, illustrates that this group of sampled value is effective
, it can be used to calculate；Otherwise the sampled value is abandoned, repeats the first step；
3) effective sampled value is utilized, by mathematical computations such as extraction of square root and arctan functions, finds out tilt angle,
Sampling period: default 60 minutes can adjust in 30 minutes to 24 hours.
Low-power consumption: power supply service life 8 years or more.
History data store: 30 days.
Power supply type:
High-energy battery: meet 8 years requirements herein, high-energy battery capacity requirement is slightly larger, sensor weight and volume phase
To needing to increase.
Photovoltaic battery panel+battery: this group is combined into preferred embodiment, using environmentally protective solar energy to battery into
Row charging, significantly reduces the weight and volume of whole equipment.
Specific embodiment
A kind of shaft tower tilt angle monitoring device based on NB-IoT network, comprising: angle acquisition chip, MCU, NB-IoT communicate mould
Block, antenna and remote server；The angle acquisition chip is 3-axis acceleration sensor, measures acceleration in X-axis, Y-axis and Z axis
On component A x, Ay, Az, and the acceleration information of measurement is transferred to MCU；The MCU receiving angle acquisition chip transmission adds
Velocity information, if Ax, Ay, Az meet conditionThen pass through formula
Calculate shaft tower inclination angleAnd by shaft tower inclination angleValue is transferred to NB-IoT communication module；The NB-IoT communication module will receive
Shaft tower inclination data be parsed into wireless signal, remote server is sent to by wireless network using antenna.
In the process, use photovoltaic battery panel+battery mode for angle acquisition chip, MCU and NB-IoT communication
Module provides power supply, and after information is transmitted, MCU and NB-IoT communication module enters sleep pattern, to reduce power consumption.When
When angle acquisition chip has inclination data to need to send, MCU and NB-IoT communication module wakes up work.
Wireless network used in the present invention is NB-IoT wireless network, including transmitting terminal antenna and receiving end antenna, is gone back
Including receiver and interpreter, this subnetwork can be built by operator, save intermediate exploitation link.
The object of the invention is to by using newest low-power consumption NB-IoT mechanics of communication, in conjunction with the depth of MCU controller
Degree sleep power-saving technology, reaches the power consumption reduction effect of whole measuring device, to solve the limited electricity of transmission tower measuring device
The problem of source prolongs the service life, simultaneous communications module is direct-connected with server, simplifies communication architecture.
The present invention is to be attained in that one kind based on NB-IoT network communications technology using following technical solution
Low-power consumption shaft tower tilt angle monitoring device, the status data transfers of shaft tower use NB-IoT wireless communication mode, NB-IoT itself
Belong to low-consumption wireless mode, the purpose of reduction power consumption is realized in conjunction with the sleep awakening of communication module.
Further, when the tilt angle monitoring device has inclination data to need to send, NB-IoT communication module wakes up work,
When no data needs to send, NB-IoT communication module is slept to reach reducing power consumption.
Further, the angle acquisition of the tilt angle monitoring device is read by MCU controller by the timing of angle acquisition chip
Acquisition is taken, after the completion of reading and sending data action, MCU and angle acquisition chip enter sleep operation mode to reach and reduce
The purpose of power consumption.
Further, the tilt angle monitoring device is connected directly by NB-IoT communication module with remote server, is reduced
The headend of other WLAN communication modes reduces equipment framework level, increases reliability.
In conclusion a kind of shaft tower tilt angle monitoring device based on NB-IoT network proposed by the present invention, by using low
The NB-IoT mechanics of communication of power consumption reaches the reducing power consumption of whole measuring device in conjunction with the deep sleep power-saving technology of MCU controller
Effect, thus solve the problems, such as that transmission tower measuring device power consumption is big, power supply service life is short, meanwhile, communication module and service
Device is direct-connected, simplifies communication architecture.
Above embodiment is the preferred embodiment of the present invention, is not intended to limit patent protection model of the invention
It encloses.Those skilled in the art belonging to any present invention, in the premise for not departing from spirit and scope disclosed in this invention
Under, the transformation of the equivalent structure and equivalent steps that done to the contents of the present invention each falls within claimed the scope of the patents
Within.
Claims (8)
1. a kind of shaft tower tilt angle monitoring device based on NB-IoT network characterized by comprising angle acquisition chip, MCU,
NB-IoT communication module, antenna and remote server；
The angle acquisition chip is 3-axis acceleration sensor, for measuring component of the acceleration on X-axis, Y-axis and Z axis
Ax, Ay, Az, and the acceleration information of measurement is transferred to MCU；
The acceleration information of the MCU receiving angle acquisition chip transmission, passes through formulaIt calculates
Shaft tower inclination angle, and shaft tower inclination data is transferred to NB-IoT communication module；
The shaft tower inclination data received is parsed into wireless signal by the NB-IoT communication module, passes through wireless network using antenna
Network is sent to remote server.
2. a kind of shaft tower tilt angle monitoring device based on NB-IoT network according to claim 1, which is characterized in that also wrap
Include power supply system.
3. a kind of shaft tower tilt angle monitoring device based on NB-IoT network according to claim 1, which is characterized in that described
When MCU is exported without information input, it is in sleep state.
4. a kind of shaft tower tilt angle monitoring device based on NB-IoT network according to claim 1, which is characterized in that described
When NB-IoT communication module is exported without information input, it is in sleep state.
5. a kind of shaft tower tilt angle monitoring device based on NB-IoT network according to claim 1, which is characterized in that described
Formula further includes
6. a kind of shaft tower tilt angle monitoring device based on NB-IoT network according to claim 2, which is characterized in that described
Power supply system include dry cell, photovoltaic battery panel, battery and route add it is one of coil-induced or a variety of.
7. a kind of shaft tower tilt angle monitoring device based on NB-IoT network according to claim 1, which is characterized in that described
MCU includes storage module.
8. a kind of shaft tower tilt angle monitoring device based on NB-IoT network according to claim 1 or 5, which is characterized in that
The formula is
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| CN201810589109.1A CN109211190A (en) | 2018-06-08 | 2018-06-08 | A kind of shaft tower tilt angle monitoring device based on NB-IoT network |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743707A (en) * | 2019-03-08 | 2019-05-10 | 中消云（北京）物联网科技研究院有限公司 | Tilt angle monitoring device and system |
| CN110196041A (en) * | 2019-06-28 | 2019-09-03 | 北京派克盛宏电子科技有限公司 | Cable stake topples over automatic alarm cable external force damage prevention detection method |
| CN110361152A (en) * | 2019-08-01 | 2019-10-22 | 北京派克盛宏电子科技有限公司 | Transmission tower vibration monitoring method, apparatus, system and storage medium |
| CN111599153A (en) * | 2020-05-21 | 2020-08-28 | 湖南华诺科技有限公司 | System and method for intelligentizing optical cross-connecting box |
| CN111895967A (en) * | 2020-06-24 | 2020-11-06 | 青岛合启立智能科技有限公司 | Rotation angle sensor |
| CN111912382A (en) * | 2020-08-11 | 2020-11-10 | 广东电网有限责任公司广州供电局 | Kalman filtering deflection angle monitoring system and method applied to hydraulic lifting of power transmission tower |
| CN112857317A (en) * | 2020-12-11 | 2021-05-28 | 上海大学 | Remote inclination angle measurement system and method based on 5G mobile communication |
| CN114136265A (en) * | 2021-11-30 | 2022-03-04 | 中大检测(湖南)股份有限公司 | NB-IOT wireless inclinometer measuring system |
| CN114322935A (en) * | 2022-01-06 | 2022-04-12 | 杭州市城市建设基础工程有限公司 | Inclination detection control circuit |
| CN114719824A (en) * | 2022-04-27 | 2022-07-08 | 国网湖南省电力有限公司 | Tower inclination monitoring device and monitoring method |
| CN115235425A (en) * | 2022-07-25 | 2022-10-25 | 天津市千里智能科技有限责任公司 | System and method for detecting inclination angle of logistics box |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883921A (en) * | 2017-11-08 | 2018-04-06 | 合肥工业大学 | A kind of shaft tower heeling condition monitoring system based on NB IoT technologies |
| CN208254465U (en) * | 2018-06-08 | 2018-12-18 | 北京鼎一致远科技发展有限公司 | A kind of low-power consumption shaft tower tilt angle monitoring device based on NB-IoT network |
-
2018
- 2018-06-08 CN CN201810589109.1A patent/CN109211190A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883921A (en) * | 2017-11-08 | 2018-04-06 | 合肥工业大学 | A kind of shaft tower heeling condition monitoring system based on NB IoT technologies |
| CN208254465U (en) * | 2018-06-08 | 2018-12-18 | 北京鼎一致远科技发展有限公司 | A kind of low-power consumption shaft tower tilt angle monitoring device based on NB-IoT network |
Non-Patent Citations (1)
| Title |
|---|
| 吕洪圣: "基于物联网技术的输电杆塔倾斜监测系统设计", <<信息科技辑>>, pages 138 - 438 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743707A (en) * | 2019-03-08 | 2019-05-10 | 中消云（北京）物联网科技研究院有限公司 | Tilt angle monitoring device and system |
| CN110196041A (en) * | 2019-06-28 | 2019-09-03 | 北京派克盛宏电子科技有限公司 | Cable stake topples over automatic alarm cable external force damage prevention detection method |
| CN110361152A (en) * | 2019-08-01 | 2019-10-22 | 北京派克盛宏电子科技有限公司 | Transmission tower vibration monitoring method, apparatus, system and storage medium |
| CN111599153A (en) * | 2020-05-21 | 2020-08-28 | 湖南华诺科技有限公司 | System and method for intelligentizing optical cross-connecting box |
| CN111895967A (en) * | 2020-06-24 | 2020-11-06 | 青岛合启立智能科技有限公司 | Rotation angle sensor |
| CN111912382A (en) * | 2020-08-11 | 2020-11-10 | 广东电网有限责任公司广州供电局 | Kalman filtering deflection angle monitoring system and method applied to hydraulic lifting of power transmission tower |
| CN112857317A (en) * | 2020-12-11 | 2021-05-28 | 上海大学 | Remote inclination angle measurement system and method based on 5G mobile communication |
| CN114136265A (en) * | 2021-11-30 | 2022-03-04 | 中大检测(湖南)股份有限公司 | NB-IOT wireless inclinometer measuring system |
| CN114136265B (en) * | 2021-11-30 | 2023-07-07 | 中大智能科技股份有限公司 | NB-IOT wireless inclinometer measuring system |
| CN114322935A (en) * | 2022-01-06 | 2022-04-12 | 杭州市城市建设基础工程有限公司 | Inclination detection control circuit |
| CN114719824A (en) * | 2022-04-27 | 2022-07-08 | 国网湖南省电力有限公司 | Tower inclination monitoring device and monitoring method |
| CN115235425A (en) * | 2022-07-25 | 2022-10-25 | 天津市千里智能科技有限责任公司 | System and method for detecting inclination angle of logistics box |
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Effective date of registration: 20190522 Address after: 413000 dragon field house group, Malone Ba village, Heng Long new area, Heshan District, Yiyang, Hunan Applicant after: HUNAN DINGYI ZHIYUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 101300 8-7 Longitudinal Second Road, Yangzhen District, Shunyi District, Beijing Applicant before: BEIJING DINGYI ZHIYUAN SCIENCE AND TECHNOLOGY DEVELOPMENT CO.,LTD. |
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