CN111395852A - Internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on Internet of things - Google Patents
Internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on Internet of things Download PDFInfo
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- CN111395852A CN111395852A CN202010196998.2A CN202010196998A CN111395852A CN 111395852 A CN111395852 A CN 111395852A CN 202010196998 A CN202010196998 A CN 202010196998A CN 111395852 A CN111395852 A CN 111395852A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/047—Specific indicating or recording arrangements, e.g. for remote indication, for indicating overload or underload
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Abstract
The invention provides an internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the Internet of things, which is used for holding pole stay wire stress and holding pole posture detection during the construction of an internal suspension internal stay wire holding pole group tower, wherein the detection system comprises a sensor group which is arranged at an iron tower and is connected with a monitoring platform through a wireless transmission network; the sensor group comprises a tension detection device arranged at the stay wire fixing position of the holding pole and an anti-falling pole early warning system arranged at the lower part of the holding pole; the sensor group collects the tension data and the holding pole posture data of the holding pole stay wire and uploads the data to the monitoring platform, so that the monitoring platform analyzes and monitors the holding pole stay wire and the holding pole posture in the iron tower construction process, dangerous working condition early warning is carried out on the holding pole, and the data of the construction process of the internal suspension internal stay wire holding pole group tower are stored so as to be traceable; the invention can track the whole process of monitoring the tension sensor data of each stay wire and the inclination angle of the holding pole in real time during the construction of the iron tower, and can early warn the dangerous condition of the holding pole in advance, so that the acquired data has traceability.
Description
Technical Field
The invention relates to the technical field of iron tower construction, in particular to an internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the Internet of things.
Background
In order to solve the problems of small inner pull wire angle, poor stability and the like of the inner suspension inner pull wire holding pole, the overturning accident of the holding pole can be caused by overlarge inclination angle of the holding pole and serious imbalance of pull wire tension, and in order to monitor the applicable state of the holding pole and balance the stress of the pull wire in each direction, a device capable of measuring the pull wire stress is required to be arranged firstly, so that the field adjustment is facilitated after the tension on the pull wire is collected; meanwhile, the pull wire is transmitted to a display screen of a monitoring terminal, and a pull wire adjusting scheme is obtained, so that the holding pole can operate and use stably, safely and reliably.
The invention develops a data communication acquisition system (comprising hardware and software) suitable for a holding pole based on the technology of the Internet of things, and uploads the data of a holding pole pull wire pulling force value, a holding pole inclination angle data acquisition value and the data of the holding pole pull wire pulling force value and the holding pole inclination angle data acquisition value to a superior Internet of things monitoring platform through a network layer of the Internet of things through a certain judgment software algorithm for data acquisition, visual archiving and decision making. The tension test perception of embracing the pole to acting as go-between, and upload the monitoring platform to the data of perception, accomplish to embracing the pole act as go-between and the overall process control of embracing the pole state, through the frame of electric power thing networking, on embracing pole use process data acquisition and transmission to the monitoring platform that influences iron tower assemblage construction safety process, accomplish each tension sensor data of acting as go-between and embrace the real time monitoring overall process tracking of pole inclination, the situation dangerous situation of embracing the pole has the traceability with the data of gathering in advance the early warning.
Disclosure of Invention
The invention provides an internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the Internet of things, which can monitor and track the tension sensor data of each stay wire and the inclination angle of the holding pole in real time in the whole process during the construction of an iron tower, early warn the dangerous condition of the holding pole in advance, and enable the acquired data to have traceability.
The invention adopts the following technical scheme.
The detection system comprises a sensor group, a monitoring platform and a control platform, wherein the sensor group is arranged at an iron tower and is connected with the iron tower through a wireless transmission network; the sensor group comprises a tension detection device arranged at the stay wire fixing position of the holding pole and an anti-falling pole early warning system arranged at the lower part of the holding pole; the sensor group collects the tension data and the posture data of the holding pole stay wire and uploads the data to the monitoring platform, so that the monitoring platform analyzes and monitors the holding pole stay wire and the holding pole posture in the iron tower construction process, dangerous working condition early warning is carried out on the holding pole, and the data of the construction process of the holding pole group tower with the stay wire in the inner suspension are stored so as to be traceable.
When the iron tower is constructed by the internal suspension internal stay wire derrick assembling method, one end of an internal stay wire is fixed at the upper part of the derrick, and then is led to tower legs through a steering pulley at the erected tower section, and the lever hoist anchor and the steel wire rope sleeve are anchored at the tower legs.
The pole holding pull wire consists of four steel wire ropes and riggings matched with the steel wire ropes; the included angle between the plane where the two adjacent inner pull wires are located and the holding pole is not less than 15 degrees.
When the monitoring platform monitors the holding pole posture in the iron tower construction process, if the proportion of the length L1 of the holding pole exposed out of the assembled tower section to the length L2 of the plane inserted into the assembled tower section is kept at L1: L2: 7: 3 in the construction process, the monitoring platform evaluates the position of the holding pole as safe.
When the monitoring platform monitors the posture of the holding pole in the construction process of the iron tower, if the holding pole is used for hoisting operation, when the inclination angle of the holding pole to the hoisting piece side is not more than 10 degrees, the monitoring platform evaluates the posture of the holding pole to be safe.
In the hoisting operation, the following method is adopted when the monitoring platform carries out stress analysis on the internal suspension internal stay wire holding pole;
the force and angle parameter values are as follows,
f is the resultant force generated by the static tension of the control rope, kN;
g is the weight of the suspended member, kN;
G0-the sum of the weights of the holding pole, the pull wire and the related accessories, kN;
t is the resultant force kN of the hoisting steel wire rope during hoisting operation;
T0-the static tension (pull force) of the haulage rope, kN;
n is the axial pressure, kN, of the comprehensive calculation of the holding pole;
the maximum lifting weight of the designed holding pole is determined as G1, the additional weight of other members during lifting is taken as G2, and the calculation formula of the total weight of the lifted holding pole is
G＝9.8(G1+G2) kN is expressed by formula one.
When a heavy object is lifted, the angles during lifting are assumed to be β -15 degrees, ω -45 degrees, γ -84 degrees and 10 degrees, the inclination angle of the holding pole is 10 degrees, the calculation and analysis are only carried out on two pull wires which are mainly stressed, so that the process of simplifying the calculation of the pulling force is simplified, and the combined value of the pulling force of the two pull wires is as follows:
the pulling force value of a single pull wire is as follows:
setting theta as an included angle between the stressed side stay wire and the resultant line thereof, wherein theta is 45 degrees;
then there is a safety factor analysis formula as
In the formula IV, k represents a safety factor; k1 represents the kinetic charge coefficient; k2 denotes the unbalance coefficient;
and when the value of k is 3, the value of k1 is 1.2, and the value of k2 is 1.2, the monitoring platform evaluates that the stress and the posture of the holding pole are in a safe state.
The anti-falling rod early warning system comprises an inclination angle sensor, a wireless module, an inclination angle early warning instrument and a solar battery pack power supply system;
the inclination angle sensor is arranged at the lower part of the holding pole and is a double-shaft digital inclination angle sensor, and can monitor the inclination state of the holding pole in four directions, namely front, back, left and right directions; the inclination angle early warning instrument is arranged on a horizontal supporting table at the bottom end of the holding pole, and sends an alarm signal to the monitoring platform and a construction site in a wireless communication mode when the inclination angle early warning instrument detects that the inclination angle value of the holding pole is larger than a preset threshold value through the inclination angle sensor;
the inclination angle sensor and the inclination angle early warning instrument are powered by a solar battery pack power supply system.
The tension detection device comprises a tension sensor, an amplifier, a single chip microcomputer module, a wireless transmission and sending module and the like; the tension sensor is arranged at the position of a pole holding pull wire; the tension signal detected by the tension sensor is converted into a digital signal through an amplifier and then is sent to a monitoring platform through a wireless transmission sending module;
the monitoring platform utilizes the tension sensor to collect the tension of each stay wire on line and wirelessly transmits the detection result to the monitoring terminal for real-time monitoring, so that a constructor adjusts the tension of the stay wire according to the detection result to realize stay wire control closed loop in the construction of the iron tower.
The wireless transmission network is an NB-IoT narrowband Internet of things or a 5G Internet of things; the monitoring platform comprises a server or a monitoring host.
The invention relates to a data communication acquisition system (comprising hardware and software) suitable for a holding pole based on the technology of Internet of things, which uploads a holding pole pull wire pulling force value, a holding pole inclination angle data acquisition value and data of the holding pole pull wire pulling force value and the holding pole inclination angle data acquisition value to a superior Internet of things monitoring platform through a network layer of the Internet of things through a certain judgment software algorithm for data acquisition, visual archiving and decision making.
The invention can detect and sense the tension of the guy pole and upload the sensed data to the monitoring platform, thereby monitoring the whole process of the states of the guy pole and the pole, acquiring and transmitting the data of the pole use process influencing the construction safety process of the iron tower assembly to the monitoring platform through the framework of the power internet of things, tracking the whole process of monitoring the tension sensor data of each guy pole and the inclination angle of the pole in real time, early warning the dangerous condition of the pole in advance and having traceability on the acquired data.
The invention relates to an intelligent Internet of things monitoring system suitable for real-time monitoring of a vertical internal suspension internal stay wire holding pole, which can be used for cooperatively sensing and collecting information of monitored objects such as a holding pole inclination angle, a stay wire tension force and the like in a deployment and collection node of a construction holding pole in a target area.
According to the invention, the state of the pole-holding operation object is obtained by performing parameter fusion processing on information by utilizing the Internet of things technology, the requirements of real-time performance, accuracy, comprehensiveness and the like of information acquisition on the important link of the pole-holding hoisting object assembled by the iron tower can be ensured, effective iron tower construction situation perception can be realized, effective support is provided for improving the standardized management capability of power transmission line construction, an integrated application platform is constructed for forming an electric power construction intelligent wireless sensor network system, and services such as unified data storage, processing, mining, analysis and the like are provided.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic diagram of the position of a holding pole during construction of an internal suspension internal stay wire holding pole group tower;
FIG. 2 is a schematic force diagram of the construction of an internal suspension internal stay wire holding pole group tower during lifting operation;
FIG. 3 is a schematic diagram of the sensor position of the present invention;
FIG. 4 is a schematic diagram of the principle of tension detection of a pull wire and inclination detection of a holding pole;
FIG. 5 is a schematic diagram of the principles of the present invention;
FIG. 6 is a schematic of the networking of the present invention;
in the figure: 1, holding a pole; 2-holding pole pull wire; 3-tower section; 4-a hauling rope; 5-a suspended member; 6-control rope; 7-a tension sensor; 8-tilt angle sensor.
Detailed Description
As shown in fig. 1-6, the internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the internet of things is used for holding pole stay wire stress and holding pole posture detection during internal suspension internal stay wire holding pole group tower construction, and comprises a sensor group which is arranged at an iron tower and connected with a monitoring platform through a wireless transmission network; the sensor group comprises a tension detection device arranged at the fixed position of the holding pole stay wire 2 and an anti-falling pole early warning system arranged at the lower part of the holding pole 1; the sensor group collects the tension data and the posture data of the holding pole stay wire and uploads the data to the monitoring platform, so that the monitoring platform analyzes and monitors the holding pole stay wire and the holding pole posture in the iron tower construction process, dangerous working condition early warning is carried out on the holding pole, and the data of the construction process of the holding pole group tower with the stay wire in the inner suspension are stored so as to be traceable.
When the iron tower is constructed by the internal suspension internal stay wire derrick assembling method, one end of an internal stay wire is fixed at the upper part of the derrick, and then is led to tower legs through a steering pulley at the position of the erected tower section 3, and the lever hoist anchor and the steel wire rope sleeve are anchored at the tower legs.
The pole holding pull wire consists of four steel wire ropes and riggings matched with the steel wire ropes; the included angle between the plane where the two adjacent inner pull wires are located and the holding pole is not less than 15 degrees.
When the monitoring platform monitors the holding pole posture in the iron tower construction process, if the proportion of the length L1 of the holding pole exposed out of the assembled tower section to the length L2 of the plane inserted into the assembled tower section is kept at L1: L2: 7: 3 in the construction process, the monitoring platform evaluates the position of the holding pole as safe.
When the monitoring platform monitors the posture of the holding pole in the construction process of the iron tower, if the holding pole is used for hoisting operation, when the inclination angle of the holding pole to the hoisting piece side is not more than 10 degrees, the monitoring platform evaluates the posture of the holding pole to be safe.
In the hoisting operation, the following method is adopted when the monitoring platform carries out stress analysis on the internal suspension internal stay wire holding pole;
the force and angle parameter values are as follows,
f is the resultant force generated by the static tension of the control rope, kN;
g is the weight of the suspended member, kN;
G0-the sum of the weights of the holding pole, the pull wire and the related accessories, kN;
t is the resultant force kN of the hoisting steel wire rope during hoisting operation;
T0-the static tension (pull force) of the haulage rope, kN;
n is the axial pressure, kN, of the comprehensive calculation of the holding pole;
the maximum lifting weight of the designed holding pole is determined as G1, the additional weight of other members during lifting is taken as G2, and the calculation formula of the total weight of the lifted holding pole is
G＝9.8(G1+G2) kN is expressed by formula one.
When a heavy object is lifted, the angles during lifting are assumed to be β -15 degrees, ω -45 degrees, γ -84 degrees and 10 degrees, the inclination angle of the holding pole is 10 degrees, the calculation and analysis are only carried out on two pull wires which are mainly stressed, so that the process of simplifying the calculation of the pulling force is simplified, and the combined value of the pulling force of the two pull wires is as follows:
the pulling force value of a single pull wire is as follows:
setting theta as an included angle between the stressed side stay wire and the resultant line thereof, wherein theta is 45 degrees;
then there is a safety factor analysis formula as
In the formula IV, k represents a safety factor; k1 represents the kinetic charge coefficient; k2 denotes the unbalance coefficient;
and when the value of k is 3, the value of k1 is 1.2, and the value of k2 is 1.2, the monitoring platform evaluates that the stress and the posture of the holding pole are in a safe state.
The anti-falling rod early warning system comprises an inclination angle sensor, a wireless module, an inclination angle early warning instrument and a solar battery pack power supply system;
the inclination angle sensor 8 is arranged at the lower part of the holding pole and is a double-shaft digital inclination angle sensor, and can monitor the inclination state of the holding pole in four directions, namely front, back, left and right directions; the inclination angle early warning instrument is arranged on a horizontal supporting table at the bottom end of the holding pole, and sends an alarm signal to the monitoring platform and a construction site in a wireless communication mode when the inclination angle early warning instrument detects that the inclination angle value of the holding pole is larger than a preset threshold value through the inclination angle sensor;
the inclination angle sensor and the inclination angle early warning instrument are powered by a solar battery pack power supply system.
The tension detection device comprises a tension sensor 7, an amplifier, a singlechip module, a wireless transmission and transmission module and the like; the tension sensor is arranged at the position of a pole holding pull wire; the tension signal detected by the tension sensor is converted into a digital signal through an amplifier and then is sent to a monitoring platform through a wireless transmission sending module;
the monitoring platform utilizes the tension sensor to collect the tension of each stay wire on line and wirelessly transmits the detection result to the monitoring terminal for real-time monitoring, so that a constructor adjusts the tension of the stay wire according to the detection result to realize stay wire control closed loop in the construction of the iron tower.
The wireless transmission network is an NB-IoT narrowband Internet of things or a 5G Internet of things; the monitoring platform comprises a server or a monitoring host.
In the embodiment, by using the technology of internet of things, pull line tension and dip angle monitoring sub-nodes are arranged on the iron tower erection holding rods in each monitoring target area, and tension and dip angle monitoring information is continuously collected. And the acquired information is subjected to deep cooperative processing according to the requirements, so that the state information of the environment or the object required by the application terminal is abstracted. The internet of things uses an advanced communication technology and a communication network to safely and reliably transmit the collected pulling force and inclination angle information to the service terminal. The wireless Internet of things architecture can be divided into a sensing layer, a network layer and an application layer according to different functions.
The sensing layer comprises a tension sensor, a holding pole inclination angle sensor model selection design and a data acquisition system, and is respectively used for measuring the pulling force of an inner suspension inner pulling line and the holding pole inclination angle, and the two parameters are important parameters for determining whether the holding pole is safe or not. The sensing layer comprises an inclination angle sensor, a tension sensor, a data acquisition and transmission module of the inclination angle sensor and the tension sensor, a power supply module and the like.
In the aspect of a network layer, all sensors arranged in a target area are supposed to be adopted, and the functions of information transmission, control and the like between a sensing layer and an application layer are realized by adopting a China telecom NB-IoT (NB-IoT) narrowband Internet of things or a developing 5G Internet of things.
The application layer is located on the top layer of the three-layer structure of the Internet of things and is mainly used for providing information services. The information of the tension of the guy wire of the holding pole and the inclination angle of the holding pole collected by the sensing layer is analyzed and processed in the application layer according to various discrimination algorithm applications and service requirements, and the application of the Internet of things based on monitoring the guy wire of the holding pole is realized. The method comprises the steps of monitoring the pull-wire tension, belonging to the field of on-line monitoring of equipment states, acquiring each target state quantity, namely each pull-wire tension, on line by using a tension sensor, wirelessly transmitting data to a monitoring terminal for real-time monitoring, adjusting the pull-wire tension according to a detection result, and realizing closed-loop control.
In the embodiment, the inclination angle sensor is arranged at the lower part of the holding pole, a double-shaft digital inclination angle sensor is adopted to realize high-precision and high-stability measurement, the vibration resistance grade is required to reach 3000g, the power supply mode is 12V, the IP67 protection grade shell is adopted, the working temperature is minus 40-85 ℃, the range can be selected from minus or plus 5 degrees to minus or plus 90 degrees, and RS485, RS232 and TT L422 can be selected as outputs.
Claims (10)
1. Stay wire pole detection and inclination detecting system of acting as go-between in suspension based on thing networking for when acting as go-between in the suspension pole group tower construction hold pole acting as go-between atress and hold pole gesture detection, its characterized in that: the detection system comprises a sensor group which is arranged at an iron tower and is connected with the monitoring platform through a wireless transmission network; the sensor group comprises a tension detection device arranged at the stay wire fixing position of the holding pole and an anti-falling pole early warning system arranged at the lower part of the holding pole; the sensor group collects the tension data and the posture data of the holding pole stay wire and uploads the data to the monitoring platform, so that the monitoring platform analyzes and monitors the holding pole stay wire and the holding pole posture in the iron tower construction process, dangerous working condition early warning is carried out on the holding pole, and the data of the construction process of the holding pole group tower with the stay wire in the inner suspension are stored so as to be traceable.
2. The internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the internet of things according to claim 1, characterized in that: when the iron tower is constructed by the internal suspension internal stay wire derrick assembling method, one end of an internal stay wire is fixed at the upper part of the derrick, and then is led to tower legs through a steering pulley at the erected tower section, and the lever hoist anchor and the steel wire rope sleeve are anchored at the tower legs.
3. The internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the internet of things according to claim 2, characterized in that: the pole holding pull wire consists of four steel wire ropes and riggings matched with the steel wire ropes; the included angle between the plane where the two adjacent inner pull wires are located and the holding pole is not less than 15 degrees.
4. The system for detecting the guy wire and the inclination angle of the internal suspension internal guy wire holding pole based on the Internet of things of claim 3 is characterized in that when the monitoring platform monitors the posture of the guy pole in the construction process of the iron tower, if the ratio of the length L1 of the guy pole exposed out of the assembled tower section to the length L2 of the plane inserted into the assembled tower section is kept at L1: L2: 7: 3 in the construction process, the monitoring platform evaluates the position of the guy pole as safe.
5. The internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the Internet of things according to claim 4, wherein: when the monitoring platform monitors the posture of the holding pole in the construction process of the iron tower, if the holding pole is used for hoisting operation, when the inclination angle of the holding pole to the hoisting piece side is not more than 10 degrees, the monitoring platform evaluates the posture of the holding pole to be safe.
6. The internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the Internet of things according to claim 5, wherein: in the hoisting operation, the following method is adopted when the monitoring platform carries out stress analysis on the internal suspension internal stay wire holding pole;
the force and angle parameter values are as follows,
f is the resultant force generated by the static tension of the control rope, kN;
g is the weight of the suspended member, kN;
G0-the sum of the weights of the holding pole, the pull wire and the related accessories, kN;
t is the resultant force kN of the hoisting steel wire rope during hoisting operation;
T0-the static tension (pull force) of the haulage rope, kN;
n is the axial pressure, kN, of the comprehensive calculation of the holding pole;
β -the included angle between the axis of the lifting pulley block and the plumb line, (°);
omega-control rope angle to ground, (°);
gamma-included angle of resultant line of pull wire of holding rod to ground, (°);
-the included angle between the axis of the holding pole and the plumb line, (°);
the maximum lifting weight of the designed holding pole is determined as G1, the additional weight of other members during lifting is taken as G2, and the calculation formula of the total weight of the lifted holding pole is
G＝9.8(G1+G2) kN is expressed by formula one.
7. The system for detecting the stay wire and the inclination angle of the internal suspension internal stay wire holding rod based on the Internet of things is characterized in that when a heavy object is lifted, the angles during lifting are assumed to be β -15 degrees, ω -45 degrees, γ -84 degrees and 10 degrees, the inclination angle of the holding rod is 10 degrees at the moment, the process of simplifying the tension calculation is carried out only on two mainly stressed stay wires through calculation and analysis, and the tension resultant value of the two stay wires is as follows:
the pulling force value of a single pull wire is as follows:
setting theta as an included angle between the stressed side stay wire and the resultant line thereof, wherein theta is 45 degrees;
then there is a safety factor analysis formula as
In the formula IV, k represents a safety factor; k1 represents the kinetic charge coefficient; k2 denotes the unbalance coefficient;
and when the value of k is 3, the value of k1 is 1.2, and the value of k2 is 1.2, the monitoring platform evaluates that the stress and the posture of the holding pole are in a safe state.
8. The internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the internet of things according to claim 2, characterized in that: the anti-falling rod early warning system comprises an inclination angle sensor, a wireless module, an inclination angle early warning instrument and a solar battery pack power supply system;
the inclination angle sensor is arranged at the lower part of the holding pole and is a double-shaft digital inclination angle sensor, and can monitor the inclination state of the holding pole in four directions, namely front, back, left and right directions; the inclination angle early warning instrument is arranged on a horizontal supporting table at the bottom end of the holding pole, and sends an alarm signal to the monitoring platform and a construction site in a wireless communication mode when the inclination angle early warning instrument detects that the inclination angle value of the holding pole is larger than a preset threshold value through the inclination angle sensor;
the inclination angle sensor and the inclination angle early warning instrument are powered by a solar battery pack power supply system.
9. The internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the internet of things according to claim 2, characterized in that: the tension detection device comprises a tension sensor, an amplifier, a single chip microcomputer module, a wireless transmission and sending module and the like; the tension sensor is arranged at the position of a pole holding pull wire; the tension signal detected by the tension sensor is converted into a digital signal through an amplifier and then is sent to a monitoring platform through a wireless transmission sending module;
the monitoring platform utilizes the tension sensor to collect the tension of each stay wire on line and wirelessly transmits the detection result to the monitoring terminal for real-time monitoring, so that a constructor adjusts the tension of the stay wire according to the detection result to realize stay wire control closed loop in the construction of the iron tower.
10. The internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on the internet of things according to claim 1, characterized in that: the wireless transmission network is an NB-IoT narrowband Internet of things or a 5G Internet of things; the monitoring platform comprises a server or a monitoring host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196998.2A CN111395852A (en) | 2020-03-19 | 2020-03-19 | Internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196998.2A CN111395852A (en) | 2020-03-19 | 2020-03-19 | Internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on Internet of things |
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| CN111395852A true CN111395852A (en) | 2020-07-10 |
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| CN202010196998.2A Pending CN111395852A (en) | 2020-03-19 | 2020-03-19 | Internal suspension internal stay wire holding pole stay wire detection and inclination angle detection system based on Internet of things |
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| CN (1) | CN111395852A (en) |
Cited By (13)
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| CN111927185A (en) * | 2020-08-20 | 2020-11-13 | 长春建筑学院 | Emergent electric power communication tower |
| CN112357768A (en) * | 2020-10-26 | 2021-02-12 | 国网福建省电力有限公司建设分公司 | Device and method for monitoring lifting condition of tower material |
| CN112461288A (en) * | 2020-10-26 | 2021-03-09 | 国网福建省电力有限公司建设分公司 | Pole working state monitoring device and monitoring method thereof |
| CN112665550A (en) * | 2021-01-13 | 2021-04-16 | 三峡大学 | Suspension holding pole group tower monitoring device and method |
| CN112798266A (en) * | 2021-03-10 | 2021-05-14 | 安徽送变电工程有限公司 | Axial pressure detection method applied to hoisting of bearing part |
| CN112833939A (en) * | 2020-12-11 | 2021-05-25 | 北京国电通网络技术有限公司 | Warning system and warning method for pole holding tower assembling system |
| CN112960575A (en) * | 2021-01-21 | 2021-06-15 | 安徽送变电工程有限公司 | Axial compression detection sensor, suspension holding pole and hoisting bearing part |
| CN113097622A (en) * | 2021-04-06 | 2021-07-09 | 上海空间电源研究所 | Metal lithium battery module |
| CN113530347A (en) * | 2021-07-28 | 2021-10-22 | 三峡大学 | Anti-toppling mechanical device and method for internal suspension stay wire holding rod |
| CN113567097A (en) * | 2021-06-25 | 2021-10-29 | 广州建设工程质量安全检测中心有限公司 | T-beam static load anti-roll device and method |
| CN113846899A (en) * | 2021-10-22 | 2021-12-28 | 河北汇智电力工程设计有限公司 | Transmission line iron tower reinforcing and adjusting device |
| CN114128952A (en) * | 2021-08-14 | 2022-03-04 | 三峡大学 | Special safety helmet for power transmission tower constructors |
| CN117052352A (en) * | 2023-08-15 | 2023-11-14 | 大庆石油管理局有限公司 | Protective device of tower type oil pumping unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111927185A (en) * | 2020-08-20 | 2020-11-13 | 长春建筑学院 | Emergent electric power communication tower |
| CN112357768A (en) * | 2020-10-26 | 2021-02-12 | 国网福建省电力有限公司建设分公司 | Device and method for monitoring lifting condition of tower material |
| CN112461288A (en) * | 2020-10-26 | 2021-03-09 | 国网福建省电力有限公司建设分公司 | Pole working state monitoring device and monitoring method thereof |
| CN112833939A (en) * | 2020-12-11 | 2021-05-25 | 北京国电通网络技术有限公司 | Warning system and warning method for pole holding tower assembling system |
| CN112665550B (en) * | 2021-01-13 | 2022-04-08 | 三峡大学 | Suspension holding pole group tower monitoring device and method |
| CN112665550A (en) * | 2021-01-13 | 2021-04-16 | 三峡大学 | Suspension holding pole group tower monitoring device and method |
| CN112960575A (en) * | 2021-01-21 | 2021-06-15 | 安徽送变电工程有限公司 | Axial compression detection sensor, suspension holding pole and hoisting bearing part |
| CN112960575B (en) * | 2021-01-21 | 2023-01-24 | 安徽送变电工程有限公司 | Axial compression detection sensor, suspension holding pole and hoisting bearing part |
| CN112798266A (en) * | 2021-03-10 | 2021-05-14 | 安徽送变电工程有限公司 | Axial pressure detection method applied to hoisting of bearing part |
| CN112798266B (en) * | 2021-03-10 | 2022-07-01 | 安徽送变电工程有限公司 | Axial pressure detection method applied to hoisting of bearing part |
| CN113097622A (en) * | 2021-04-06 | 2021-07-09 | 上海空间电源研究所 | Metal lithium battery module |
| CN113097622B (en) * | 2021-04-06 | 2023-04-18 | 上海空间电源研究所 | Metal lithium battery module |
| CN113567097A (en) * | 2021-06-25 | 2021-10-29 | 广州建设工程质量安全检测中心有限公司 | T-beam static load anti-roll device and method |
| CN113530347A (en) * | 2021-07-28 | 2021-10-22 | 三峡大学 | Anti-toppling mechanical device and method for internal suspension stay wire holding rod |
| CN113530347B (en) * | 2021-07-28 | 2022-05-20 | 三峡大学 | Anti-toppling mechanical device and method for internal suspension stay wire holding rod |
| CN114128952A (en) * | 2021-08-14 | 2022-03-04 | 三峡大学 | Special safety helmet for power transmission tower constructors |
| CN113846899A (en) * | 2021-10-22 | 2021-12-28 | 河北汇智电力工程设计有限公司 | Transmission line iron tower reinforcing and adjusting device |
| CN117052352A (en) * | 2023-08-15 | 2023-11-14 | 大庆石油管理局有限公司 | Protective device of tower type oil pumping unit |
| CN117052352B (en) * | 2023-08-15 | 2024-04-23 | 大庆石油管理局有限公司 | Protective device of tower type oil pumping unit |
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