CN114401459A - High formwork construction safety monitoring method and monitoring system based on edge calculation - Google Patents
High formwork construction safety monitoring method and monitoring system based on edge calculation Download PDFInfo
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Abstract
The invention discloses a high formwork construction safety monitoring method and system based on edge calculation, and belongs to the technical field of Internet of things. The monitoring method comprises the steps of S1, installing a data acquisition terminal, and installing the data acquisition terminal on a key measuring point of the high formwork supporting system; s2, remote debugging, wherein the central server remotely debugs each data acquisition terminal; s3, data acquisition and processing, wherein the data acquisition terminal acquires data and performs moving average processing on the acquired data; s4, wireless communication, wherein the data acquisition terminal sends the processed data to a central server, and the central server judges whether the high formwork construction is safe and sends an early warning instruction to the data processing terminal; and S5, real-time early warning, wherein the data processing terminal issues an early warning signal according to the early warning instruction of the central server. The invention adopts an online/offline combination mode to process data, measures the key position of the high formwork supporting system and can realize the comprehensive construction tracking monitoring of the formwork system.
Description
Technical Field
The invention belongs to the technical field of Internet of things, and particularly relates to a high formwork construction safety monitoring method and system based on edge calculation.
Background
With the development of social economy, the scale of construction engineering is getting bigger and bigger, and more engineering construction needs to adopt high formwork operation (hereinafter referred to as high formwork), and the height of the high formwork is from several meters to tens of meters, and some are even dozens of meters. However, the collapse of the formwork support system frequently occurs in factory construction, which causes great loss to life and property, and the safety accident is mainly caused by that the high formwork is locally collapsed or wholly overturned due to the failure of the internal components of the system caused by overlarge load or overlarge deformation, which causes the casualties of operators.
At present, the structural type and the plane layout of a building present a development trend of complexity and diversification, and a new building has higher requirements on the construction safety management of a high-support template. However, the conventional method of monitoring settlement by using a precision level gauge and monitoring plane displacement by using a total station has low measurement efficiency, difficult operation of personnel and certain safety problem in operation; the automatic monitoring coverage of the measuring robot based on the intelligent total station is narrow, and a plurality of key points are difficult to monitor simultaneously; the method based on the optical camera and the computer vision has the problems of sight line obstruction, large data processing capacity and the like, and is difficult to be applied to construction monitoring of large structures.
Through retrieval, the Chinese patent publication number: CN 106840092A; the publication date is as follows: 6 months and 13 days 2017; discloses a method for monitoring a high formwork by adopting a laser range finder, which comprises the following steps: s1, arranging a reference point pillar in an area located on the outer side of the high formwork support body, wherein the lower end of the reference point pillar penetrates through the soft soil layer downwards and then extends into and is fixed on the foundation layer, and the upper end of the reference point pillar extends out of the ground upwards; s2, setting a reference point on the part of the reference point support extending out of the ground, and installing a first laser range finder opposite to the reference point on the upper part of the high formwork support body; s3, measuring the distance between the first laser range finder and the corresponding reference point, judging whether the high formwork support body is settled or not and the settlement amount according to whether the distance is changed or not, and judging whether the index value of the high formwork exceeds the safety range or not by integrating the axial force and the inclination angle variation of the high formwork support body. This application subsides the monitoring of isoparametric through laser range finder, and monitoring efficiency is low to set up the position to the instrument and have very high accuracy requirement, be difficult to be applicable to the construction monitoring of large-scale structure.
Disclosure of Invention
In order to solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a method for monitoring safety of high formwork construction based on edge calculation, including the steps of:
s1, installing a data acquisition terminal, and installing the data acquisition terminal on a key measuring point of the high formwork supporting system;
s2, remote debugging, wherein the central server remotely tests whether the wireless communication channel is smooth and sets parameters of each data acquisition terminal;
s3, data acquisition and processing, wherein the data acquisition terminal acquires data according to the instruction of the central server and performs sliding average processing on the acquired data;
s4, wireless communication, wherein the data acquisition terminal sends the processed data to a central server, and the central server judges whether the high formwork construction is safe or not according to the simulation analysis result and sends an early warning instruction to the data processing terminal;
and S5, real-time early warning, wherein the data processing terminal issues an early warning signal according to the early warning instruction of the central server.
According to the method for monitoring the safety of the high formwork construction based on the edge calculation, optionally, in step S1, the key measuring point is determined by finite element simulation analysis.
According to the method for monitoring the safety of the high formwork construction based on the edge calculation in the embodiment of the present invention, optionally, in step S1, the measurement direction of the data acquisition terminal is consistent with the deformation direction of the measured point.
According to the method for monitoring the safety of the high formwork construction based on the edge calculation in the embodiment of the present invention, optionally, in the step S3, the following calculation model is adopted for the moving average processing:
in the formula, y [ n ]]For the output data subjected to the moving average processing, M1For the interval from the start of the running average, M2Is the interval from the current sample at the end of the running average, x [ n ]]The data processing terminal acquires the data.
According to the method for monitoring the safety of the high formwork construction based on the edge calculation in the embodiment of the present invention, optionally, the step S3 further includes that the data acquisition terminal extracts an extreme value of the data in the period at intervals of one minute by using the following calculation model for the data after the sliding average processing:
in the formula, zu[i]Is the maximum value in the ith period; z is a radical ofl[i]Is the minimum value in the ith time period; n is the number of samples in the ith period.
According to the method for monitoring the safety of the high formwork construction based on the edge calculation in the embodiment of the present invention, optionally, in step S2, the parameter settings of each data acquisition terminal include settings of transmission power, air rate, communication mode, sampling frequency, sampling time, and backhaul method.
According to the high formwork construction safety monitoring method based on edge calculation of the embodiment of the invention, optionally,
in step S2, the parameter settings for each data acquisition terminal further include setting of an early warning threshold;
in step S5, when the wireless communication is interrupted, the data processing terminal automatically determines whether the measured deformation data exceeds the warning threshold, and if the measured deformation data exceeds the warning threshold, the data processing terminal issues a warning signal.
According to the high formwork construction safety monitoring method based on edge calculation, optionally, the early warning threshold is set to be L/1000 or H/300, wherein L is the maximum size of the rod piece in the vertical direction, and H is the maximum size of the rod piece in the horizontal direction.
According to another aspect of the invention, a high formwork construction safety monitoring system based on edge calculation is provided, and a high formwork construction safety monitoring method based on edge calculation comprises the following steps:
the data acquisition terminal is arranged at a key measuring point of the high formwork supporting system, has a measuring direction consistent with the deformation direction of the measured point, is used for measuring, acquiring and processing physical information data of the measured point and can send an early warning signal outwards;
the central server is used for remotely setting wireless network configuration and data acquisition parameters of the data acquisition terminals, monitoring data of all the data acquisition terminals, analyzing the data and sending early warning instructions to the data acquisition terminals.
According to the high formwork construction safety monitoring system based on edge calculation in the embodiment of the present invention, optionally, the data acquisition terminal includes:
the measuring module is used for measuring and collecting physical information data of a measured point;
the processing module is used for processing the acquired data;
the data storage module is used for storing data;
the wireless communication module is used for carrying out data transmission with the central server;
the early warning module is used for sending out an early warning signal;
and the power supply module is used for supplying power to each module of the data acquisition terminal.
Advantageous effects
Compared with the prior art, the invention at least has the following beneficial effects:
(1) according to the high formwork construction safety monitoring method and system based on edge calculation, the data acquisition terminals are distributed at key points of the high formwork support system, the key positions of the high formwork support system are measured, and the comprehensive construction tracking monitoring of a formwork system can be realized;
(2) according to the high formwork construction safety monitoring method and system based on edge calculation, an online/offline combination mode is adopted for data processing, wireless data communication has the characteristics of low power consumption, long transmission distance, strong anti-jamming capability and the like, and application requirements of complex scenes of a construction site can be met;
(3) according to the high formwork construction safety monitoring method and system based on the edge calculation, data compression is carried out on-site high formwork monitoring data through the edge calculation, data transmission quantity is reduced, wireless communication cost is saved, and reliability of the monitoring system is improved;
(4) according to the high formwork construction safety monitoring method and system based on edge calculation, when wireless communication is interrupted due to uncontrollable factors, data such as a structural inclination angle and the like can be analyzed and processed at the data acquisition terminal in an offline mode, and real-time process monitoring and automatic early warning are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
FIG. 1 shows a flow chart of a high formwork construction safety monitoring method based on edge calculation;
FIG. 2 is a schematic diagram of the high formwork construction safety monitoring system based on edge calculation;
fig. 3 shows a schematic diagram of the data processing terminal architecture of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Example 1
The method for monitoring the safety of high formwork construction based on edge calculation in the embodiment, as shown in fig. 1, includes the following steps:
s1, installing a data acquisition terminal, and installing the data acquisition terminal on a key measuring point of the high formwork supporting system;
the key measuring points described in the step S1 are determined by finite element simulation analysis, and in this embodiment, the key measuring points include each corner point, bisection point, and quartering point of the high formwork support system;
further, the measuring direction of the data acquisition terminal is consistent with the deformation direction of the measured point, so that more reliable and effective measuring information data are obtained.
S2, remote debugging, wherein the central server remotely tests whether the wireless communication channel is smooth and sets parameters of each data acquisition terminal;
the remote debugging in the step S2 is mainly controlled by the central server, and the central server issues a broadcast instruction and detects whether the wireless communication channel is unobstructed;
then, issuing a broadcast instruction, and remotely setting the transmitting power, the air rate and the communication mode of the data acquisition terminal, wherein in the actual application process, the setting of the transmitting power, the air rate and the communication mode is determined by an operator according to the actual working condition environment so as to ensure the setting of parameters of the optimal communication transmission effect;
and then issuing a broadcast instruction, and remotely setting the sampling frequency, the sampling time and the return mode of the data acquisition terminal, wherein in the actual application process, the setting of the sampling frequency, the sampling time and the return mode is correspondingly set according to the monitoring requirements of the owner.
S3, data acquisition and processing, wherein the data acquisition terminal acquires data according to the instruction of the central server and performs sliding average processing on the acquired data;
in step S3, the moving average processing uses the following calculation model:
in the formula, y [ n ]]For the output data subjected to the moving average processing, M1For the interval from the start of the running average, M2Is the interval from the current sample at the end of the running average, x [ n ]]The data processing method comprises the steps of acquiring data for a data processing terminal;
moving averaged data y [ n ]]Is the nth sample x [ n ] of the raw data]Front and back (M)1+M2+1) samples are obtained on average, so that the influence of abnormal data can be effectively reduced;
further, in this embodiment, the extreme value of the data in the time period is extracted every one minute by using the following calculation model for the data after the moving average processing:
in the formula, zu[i]Is the maximum value in the ith period; z is a radical ofl[i]Is the minimum value in the ith time period; n is the sampling number in the ith time period;
through the processing of getting the extreme value, can effectively compress data and reduce wireless communication cost, the data that will get the extreme value finally passes through wireless communication and transmits to central server.
And S4, wireless communication, wherein the data acquisition terminal sends the processed data to the central server, and the central server judges whether the high formwork construction is safe according to the simulation analysis result and sends the early warning instruction to the data processing terminal.
S5, real-time early warning, the data processing terminal issues early warning signals according to the early warning instruction of the central server;
further, in order to ensure that the wireless communication can still be warned when the wireless communication is interrupted due to an uncontrollable factor, in step S2, a warning threshold is set when the parameters of each data acquisition terminal are remotely set, so that when the wireless communication is interrupted, the data processing terminal automatically judges whether the measured deformation data exceeds the warning threshold, and if the measured deformation data exceeds the warning threshold, a warning signal is issued.
The early warning threshold value set in the embodiment is L/1000 or H/300, wherein L is the maximum size of the rod piece in the vertical direction, and H is the maximum size of the rod piece in the horizontal direction.
Example 2
The high formwork construction safety monitoring system based on edge calculation in this embodiment is used for implementing the high formwork construction safety monitoring method based on edge calculation in embodiment 1.
As shown in fig. 2, the high formwork construction safety monitoring system based on edge calculation of the present embodiment includes a plurality of data acquisition terminals and a central server;
the data acquisition terminal is arranged at a key measuring point of the high formwork supporting system, the measuring direction is consistent with the deformation direction of the measured point, and the data acquisition terminal is used for measuring, acquiring and processing physical information data of the measured point and sending an early warning signal outwards;
the central server has the functions of broadcast monitoring and point-to-point transmission, is used for remotely setting wireless network configuration and data acquisition parameters of the data acquisition terminals, ensures that high formwork construction monitoring is carried out orderly and safely, can monitor monitoring data of all the data acquisition terminals, analyzes the data and sends an early warning instruction to the data acquisition terminals.
According to the high formwork construction safety monitoring system based on edge calculation, the data acquisition terminal monitors physical information data of key nodes of a high formwork supporting system, analysis processing is conducted on measured data, data characteristics are extracted, and then original data or analysis results are sent to the central server through the wireless communication module according to a preset instruction of the central server, the central server processes and analyzes received monitored data, when the monitored data exceed a preset threshold value, an early warning instruction is sent to the data acquisition terminal, and then the data acquisition terminal issues an early warning signal to constructors through the early warning module.
Further, the data acquisition terminal of the embodiment includes a processing module, a measuring module, a wireless communication module, a power module, a data storage module, and an early warning module, as shown in fig. 3.
In the embodiment, the data acquisition terminal realizes edge calculation through the processing module, can analyze the measured data, compresses the wireless transmission data to reduce the wireless communication cost, and can still issue the early warning signal to constructors through the early warning module under the condition of wireless communication interruption;
in the embodiment, a power supply module of the data acquisition terminal is a high-capacity lithium battery, and a mobile power supply is adopted for supplying power, so that cables are prevented from being used in a construction site, and large-scale distributed arrangement at each monitoring point of a high formwork system is facilitated;
in the embodiment, the processing module adopts an ARM Cortex-M3 architecture embedded microprocessor;
in this embodiment, the measurement module adopts an inertial sensor integrating a 3-axis gyroscope and a 3-axis accelerometer;
in this embodiment, the wireless communication module adopts low-power wide area network technologies including LORA wireless communication and NB-IoT wireless communication;
in this embodiment, the data storage module is configured to store the monitoring raw data and the data analysis result;
in this embodiment, the early warning module may receive instructions from the data acquisition terminal and the central server to send out an early warning signal.
The embodiment of the invention realizes data acquisition, analysis, transmission and decision by using an embedded processor and a low-power wide area network, and tracks and early warns in real time in the high formwork construction process; the edge calculation and the data acquisition terminal are used for compressing and preprocessing the original data, so that the wireless communication cost is reduced, and the robustness of the early warning system is improved; the central server comprehensively analyzes the monitoring data, extracts the data characteristics and realizes the optimal judgment of the high formwork construction safety; the online/offline combination mode is adopted for data analysis, the problem of wireless data transmission in a complex construction environment is effectively solved, the method is suitable for large-scale distributed monitoring, the safety early warning real-time performance is guaranteed, and the method has stronger engineering applicability.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A high formwork construction safety monitoring method based on edge calculation is characterized by comprising the following steps:
s1, installing a data acquisition terminal, and installing the data acquisition terminal on a key measuring point of the high formwork supporting system;
s2, remote debugging, wherein the central server remotely tests whether the wireless communication channel is smooth and sets parameters of each data acquisition terminal;
s3, data acquisition and processing, wherein the data acquisition terminal acquires data according to the instruction of the central server and performs sliding average processing on the acquired data;
s4, wireless communication, wherein the data acquisition terminal sends the processed data to a central server, and the central server judges whether the high formwork construction is safe or not according to the simulation analysis result and sends an early warning instruction to the data processing terminal;
and S5, real-time early warning, wherein the data processing terminal issues an early warning signal according to the early warning instruction of the central server.
2. The high formwork construction safety monitoring method based on edge calculation as claimed in claim 1, wherein: in step S1, the key points are determined by finite element simulation analysis.
3. The high formwork construction safety monitoring method based on edge calculation as claimed in claim 1, wherein: in step S1, the measurement direction of the data acquisition terminal is consistent with the deformation direction of the measured point.
4. The method for monitoring the safety of the high formwork construction based on the edge calculation as claimed in claim 1, wherein in the step S3, the following calculation model is adopted for the moving average processing:
in the formula, y [ n ]]For the output data subjected to the moving average processing, M1For the interval from the start of the running average, M2Is the interval from the current sample at the end of the running average, x [ n ]]The data processing terminal acquires the data.
5. The method for monitoring the safety of high formwork construction based on edge calculation as claimed in claim 4, wherein the step S3 further includes that the data acquisition terminal extracts the extreme value of the data in the period at intervals of one minute by using the following calculation model from the data after the moving average processing:
in the formula, zu[i]Is the maximum value in the ith period; z is a radical ofl[i]Is the minimum value in the ith time period; n is the number of samples in the ith period.
6. The high formwork construction safety monitoring method based on edge calculation as claimed in claim 1, wherein: in step S2, the parameter settings for each data acquisition terminal include settings of transmission power, air rate, communication mode, sampling frequency, sampling time, and backhaul method.
7. The high formwork construction safety monitoring method based on edge calculation is characterized in that:
in step S2, the parameter settings for each data acquisition terminal further include setting of an early warning threshold;
in step S5, when the wireless communication is interrupted, the data processing terminal automatically determines whether the measured deformation data exceeds the warning threshold, and if the measured deformation data exceeds the warning threshold, the data processing terminal issues a warning signal.
8. The high formwork construction safety monitoring method based on edge calculation as claimed in claim 7, wherein: the early warning threshold value is set to be L/1000 or H/300, wherein the L is the maximum size of the rod piece in the vertical direction, and the H is the maximum size of the rod piece in the horizontal direction.
9. An edge-calculation-based high formwork construction safety monitoring system based on the edge-calculation-based high formwork construction safety monitoring method of any one of claims 1 to 8, comprising:
the data acquisition terminal is arranged at a key measuring point of the high formwork supporting system, has a measuring direction consistent with the deformation direction of the measured point, is used for measuring, acquiring and processing physical information data of the measured point and can send an early warning signal outwards;
the central server is used for remotely setting wireless network configuration and data acquisition parameters of the data acquisition terminals, monitoring data of all the data acquisition terminals, analyzing the data and sending early warning instructions to the data acquisition terminals.
10. The system for monitoring the safety of the high formwork construction based on the edge calculation is characterized in that the data acquisition terminal comprises:
the measuring module is used for measuring and collecting physical information data of a measured point;
the processing module is used for processing the acquired data;
the data storage module is used for storing data;
the wireless communication module is used for carrying out data transmission with the central server;
the early warning module is used for sending out an early warning signal;
and the power supply module is used for supplying power to each module of the data acquisition terminal.
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| CN117419845A (en) * | 2023-10-18 | 2024-01-19 | 质点数字科技有限公司 | High formwork construction monitoring method, device, equipment and medium based on Internet of things |
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| CN113418551A (en) * | 2021-04-29 | 2021-09-21 | 广东省重工建筑设计院有限公司 | High formwork monitoring data acquisition system and high formwork engineering safety monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117419845A (en) * | 2023-10-18 | 2024-01-19 | 质点数字科技有限公司 | High formwork construction monitoring method, device, equipment and medium based on Internet of things |
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