CN111827668A - Steel supporting structure safety monitoring and early warning system and method - Google Patents
Steel supporting structure safety monitoring and early warning system and method Download PDFInfo
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- CN111827668A CN111827668A CN202010643666.4A CN202010643666A CN111827668A CN 111827668 A CN111827668 A CN 111827668A CN 202010643666 A CN202010643666 A CN 202010643666A CN 111827668 A CN111827668 A CN 111827668A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention belongs to the field of structural safety monitoring, and particularly discloses a steel supporting structure safety monitoring and early warning system and method. The system comprises a plurality of measuring devices, a plurality of intelligent terminals, a management server and a cloud platform. The method comprises the steps of dividing a region to be monitored into a plurality of sub-regions to be monitored, and arranging a plurality of measuring devices and an intelligent terminal in communication connection with the measuring devices according to the characteristics of the sub-regions to be monitored; selecting an early warning strategy of the intelligent terminal; monitoring data are collected, and data management, risk assessment and early warning are carried out on an area to be monitored according to an early warning strategy; the management server records the monitoring data and the early warning events of the intelligent terminal, sends the monitoring data to the cloud platform for data storage, updates the early warning strategy according to the monitoring data, and sends the updated early warning strategy to the intelligent terminal. The invention has high early warning and alarm response speed, realizes multi-level risk assessment and can remind site constructors of the safety level in time.
Description
Technical Field
The invention belongs to the field of structural safety monitoring, and particularly relates to a steel support structure safety monitoring and early warning system and method.
Background
The steel supporting structure is a structure mainly made of steel, mainly composed of steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and all the members or parts are usually connected by welding seams, bolts or rivets, which is one of the main building structure types. Because of its light dead weight, and construction is simple and convenient, widely apply to fields such as large-scale factory building, bridge, venue, superelevation layer. In the construction process of the capital construction project, a plurality of temporary steel support structures are needed for carrying and supporting, and due to the operation requirement of constructors in the stage, the constructors can often move around the constructors. So the safety monitoring of the structure is very important. The steel support includes: steel mould supports, scaffold frame, support template, I-steel inside lining, high formwork etc..
At present, the monitoring for a high formwork is more in the market. But less monitoring for other steel structural supports. In particular, the number of devices for emergency monitoring and timely reminding of field constructors during construction is small. The existing steel structure is safe mainly in a mode of manual observation and inspection, or a simple steel bar meter (sensor) is erected to periodically collect and inspect through a handheld reading instrument. It mainly has the following problems: (1) the monitored area is not comprehensive enough; (2) the integrated design of on-site timely monitoring, result early warning, alarm output, event recording and the like cannot be realized; (3) the early warning reminding period is long and not timely; (4) the surrounding monitoring points cannot be reminded according to the early warning monitoring data; (5) the safety of the field monitoring personnel operating environment is poor.
Based on the defects, the safety monitoring and early warning system for the steel supporting structure is urgently established in the field, the early warning is reported in a grading mode in real time, the centralized process control of the construction process is realized, and the safety level of the steel supporting structure of field construction personnel is timely reminded.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a steel supporting structure safety monitoring and early warning system and a method, wherein the characteristics of the steel supporting structure, the safety monitoring layout and the process characteristics of information processing are combined, the structures of key components such as a plurality of measuring devices, a plurality of intelligent terminals, a management server and a cloud platform, the specific settings and the communication modes of the structures are researched and designed correspondingly, the integrated design of field timely monitoring, result early warning, alarm output, event recording and the like of the plurality of measuring devices can be realized correspondingly, the real-time grading reporting and early warning are realized, the centralized process management and control of the construction process are realized, and the early warning reminding period is greatly shortened. The invention has high early warning and alarm response speed, realizes multi-level risk assessment and can remind site constructors of the safety level in time.
In order to achieve the above object, according to one aspect of the present invention, there is provided a steel supporting structure safety monitoring and early warning system, comprising a plurality of measuring devices, a plurality of intelligent terminals, a management server, and a cloud platform, wherein,
the plurality of measuring devices are arranged in the area to be monitored and are used for measuring monitoring data of the area to be monitored;
the intelligent terminal is in communication connection with the plurality of measuring devices of the sub-region to be monitored and comprises a data acquisition module, an early warning strategy module, a terminal audible and visual alarm and a terminal LoRa communication module, wherein the data acquisition module is used for being in communication connection with the plurality of measuring devices of the sub-region to be monitored and acquiring monitoring data measured by the measuring devices in real time;
the management server is in communication connection with the intelligent terminals through an LoRa gateway by adopting a LoRa network and is used for receiving monitoring data of each intelligent terminal and updating the early warning strategy module of each intelligent terminal, and meanwhile, sound-light alarm is also carried out when the intelligent terminals carry out sound-light alarm, and sound-light alarm events corresponding to the sound-light alarm of the terminals are recorded;
the cloud platform is in communication connection with the management server and is used for receiving and storing monitoring data of the management server.
Further preferably, the measuring device includes a stress measuring device, a support load measuring device, an attitude measuring device, a settlement measuring device, and a horizontal displacement measuring device for measuring the steel support structure.
Preferably, the intelligent terminal further comprises a terminal main circuit board for integrating the data acquisition module, the early warning strategy module, the audible and visual alarm and the terminal LoRa communication module;
the intelligent terminal further comprises a terminal host shell, a terminal sensor interface board and a terminal fixing piece, wherein the terminal host shell is used for accommodating the terminal host circuit board, the terminal sensor interface board is arranged on the terminal host shell, one end of the terminal sensor interface board is connected with the data acquisition module, the other end of the terminal sensor interface board is connected with the plurality of measuring devices through data lines, and the terminal fixing piece is arranged on the terminal host shell and used for supporting and fixing the terminal host shell.
As a further preferred option, the management server includes a data storage module, an early warning policy analysis module, a wireless communication module and a server audible and visual alarm, the data storage module is configured to receive and store the monitoring data, the early warning policy analysis module is configured to read the monitoring data of the data storage module, and update an early warning policy of the early warning policy module according to the monitoring data, and the wireless communication module includes a 4G network communication unit and a LoRa network server.
Preferably, the wireless communication module further includes a channel resource idle judging and allocating unit, and the channel resource idle judging and allocating unit is configured to capture an idle channel of the LoRa network server, and allocate a channel to the intelligent terminal according to the communication authority application of the intelligent terminal.
Preferably, the management server further comprises a server main circuit board for integrating the data storage module, the early warning strategy analysis module, the wireless communication module and the server audible and visual alarm;
the management server also comprises a server host shell, a server sensor, a charging interface board and a server fixing piece, wherein the server host shell is used for accommodating the server main circuit board, the server sensor and the charging interface board are arranged on the server host shell, the server sensor and the charging interface board are connected with the data storage module, and the server fixing piece is fixedly arranged on the server host shell and used for supporting and fixing the server host shell.
According to another aspect of the invention, a safety monitoring and early warning method for a steel supporting structure is provided, which comprises the following steps:
s1, dividing the region to be monitored into a plurality of sub-regions to be monitored, and arranging a plurality of measuring devices and an intelligent terminal in communication connection with the measuring devices according to the characteristics of the sub-regions to be monitored;
s2, selecting an early warning strategy of the intelligent terminal according to a plurality of measuring devices arranged in sub-areas to be monitored;
s3, the intelligent terminal collects monitoring data measured by the measuring devices, and performs data management, risk assessment and early warning on an area to be monitored according to the early warning strategy;
the management server S4 adopts an LoRa gateway to be in communication connection with a plurality of intelligent terminals, records monitoring data and early warning events of the intelligent terminals, sends all the monitoring data to a cloud platform for data storage, updates early warning strategies according to the monitoring data of the early warning events, and sends the updated early warning strategies to the intelligent terminals.
Further preferably, the measuring device includes a stress measuring device, a support load measuring device, an attitude measuring device, a settlement measuring device, and a horizontal displacement measuring device for measuring the steel support structure.
Preferably, in step S2, the early warning policy includes an upper limit warning policy, a variation warning policy, and a differential warning policy;
step S3 specifically includes the following steps:
s31, the data acquisition module of the intelligent terminal acquires the monitoring data measured by the plurality of measuring devices and sends the acquired monitoring data to the data storage module according to the type of the data;
the S32 early warning strategy module reads the monitoring data in the data storage module, matches the corresponding early warning strategy for the monitoring data according to the type of the monitoring data, and carries out risk assessment on the region monitored by the corresponding measuring device according to the monitoring data and the matched early warning strategy;
s33, if the risk value of the risk assessment is larger than the threshold value of the early warning strategy, the early warning strategy module starts an audible and visual alarm to give audible and visual alarm, and simultaneously, the early warning strategy module transmits audible and visual alarm information to the adjacent intelligent terminal through the terminal LoRa communication module to prompt the frequency of monitoring data acquisition of the adjacent intelligent terminal in an encryption mode, and otherwise, the steps S31 and S32 are repeated.
Preferably, in step S33, the step of transmitting the sound-light alarm information of the early warning policy module to the adjacent intelligent terminal through the terminal LoRa communication module specifically includes the steps of:
s331, capturing an idle channel of the LoRa network server by the channel resource idle judging and distributing unit, and recording the numbers of all the idle channels;
s332, the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal send communication authority applications to a LoRa network server, the LoRa network server audits the communication authority applications, if the communication protocols are met, numbers of idle channels are distributed to the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal, the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal perform communication on the idle channels under the numbers to prompt the frequency of monitoring data collection of relevant types encrypted by the intelligent terminal adjacent to the intelligent terminal, and otherwise, the idle channels are not distributed;
and S333, after the mutual communication is finished, the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal release the channel and return to the public channel to wait for the next communication.
Generally, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:
1. the invention adopts the integrated design of on-site timely monitoring, result early warning, alarm output, event recording and the like of a plurality of measuring devices, reports the early warning in real time in a grading manner, realizes centralized process control in the construction process and greatly shortens the early warning reminding period. Meanwhile, the risk occurrence process monitoring data is recorded in the whole process, and a data basis is provided for later-stage accident identification.
2. The system of the invention subdivides the area to be monitored into a plurality of sub-areas, and carries out layout of related measuring devices, monitoring and early warning strategies and alarm uploading strategy setting according to the characteristics of the sub-areas, and the measuring devices are connected with the intelligent terminal in a wired communication mode. And the wireless LORA technology is used for mutually connecting all the sub-monitoring areas to form a larger monitoring network, meanwhile, the monitoring network data is collected in an intelligent server through the LORA network to carry out data management and risk assessment and early warning of the whole monitoring network, and the intelligent server carries out uploading backup of a data platform through a 4G communication means. Risk assessment and early warning are carried out by monitoring stress, supporting load, supporting steel member posture, horizontal displacement, settlement and the like of the steel supporting structure, and real-time regional alarm reminding is carried out by the audible and visual alarms of all measuring points. The invention adopts multi-level risk assessment to remind the safety level of field constructors in time, and meanwhile, the invention reports early warning in a grading manner in real time to realize centralized process control of the construction process.
3. The invention discloses a multi-terminal system and a parallel communication principle in time, and a server carries out LORA network communication management through an improved Mesh network. The method comprises the steps that a server firstly captures an idle channel, numbers the idle channel, an intelligent terminal applies for communication authority, the server distributes specific channels according to the communication state and the channel use condition of a system after receiving the application for the communication authority, and appointed channel communication is carried out after a multi-point intelligent terminal needing to communicate receives the same communication channel number. The communication mechanism can solve the problems of wireless delay waiting or packet loss failure caused by the space electromagnetic wave interference problem on a radio communication channel.
4. According to the invention, each alarm strategy is subjected to line crossing value setting according to the field requirements. During alarming, the measured value is subjected to differential calculation, and if the speed of approaching the alarm limit value is faster, the sampling rate is faster. Meanwhile, alarm action output is carried out in advance by judging the line crossing trend.
5. The invention realizes multi-level risk assessment and can remind field constructors of safety level in time.
Drawings
FIG. 1 is a schematic structural diagram of a safety monitoring and early warning system for a steel supporting structure according to a preferred embodiment of the invention;
FIG. 2 is an early warning topological diagram of a steel support structure safety monitoring early warning system according to a preferred embodiment of the present invention;
FIG. 3 is a topological diagram of the intelligent terminal early warning subsystem referred to in FIG. 2;
FIG. 4 is a schematic diagram illustrating the channel resource determination and allocation of a steel support structure safety monitoring and early warning system according to a preferred embodiment of the present invention;
fig. 5 is a schematic structural diagram of the intelligent terminal referred to in fig. 1;
fig. 6 is a schematic diagram of the structure of the management server referred to in fig. 1;
FIG. 7 is a schematic diagram of an upper limit alarm strategy involved in a steel support structure safety monitoring and early warning system of the present invention;
FIG. 8 is a schematic diagram of the variable warning strategy involved in the steel support structure safety monitoring and early warning system of the present invention;
FIG. 9 is a schematic diagram of a differential alarm strategy involved in the safety monitoring and early warning system for a steel supporting structure of the invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-terminal audible and visual alarm, 2-terminal fixing board buckle, 3-terminal fixing piece, 4-terminal host machine shell, 5-terminal LoRa communication antenna, 6-terminal sensor interface board, 7-server audible and visual alarm, 8-server LoRa communication antenna, 9-server fixing board buckle, 10-server fixing piece, 11-server host machine shell, 12-server sensor and charging interface board, 13-server indicator light and 14-wireless antenna.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, in the safety monitoring and early warning system for a steel supporting structure provided by the embodiment of the invention, the steel supporting structure is used as a region to be monitored, and the region to be monitored is divided into a plurality of sub regions to be monitored according to the characteristics of the region to be monitored. If the area to be monitored can be divided into a plurality of sub-areas to be monitored according to the type of the steel supporting structure: the steel mould supports monitoring subregion, scaffold monitoring subregion, supports template monitoring subregion, I-steel inside lining monitoring subregion, high formwork monitoring subregion etc.. Meanwhile, regional rice can be performed on the steel support structure according to the regional position, and a plurality of sub-regions to be monitored are obtained.
As shown in fig. 3 and 5, in each sub-area to be monitored, a plurality of measuring devices and intelligent terminals in communication connection with the plurality of measuring devices are arranged, so that the on-site timely monitoring of the whole steel supporting structure is realized through the plurality of intelligent terminals capable of communicating with each other. In the present invention, the measuring device is arranged and selected according to the type of the steel support structure and the type of the area to be monitored, and in general, the measuring device includes a stress measurer, a support load measurer, an attitude measurer, a settlement measurer, and a horizontal displacement measurer, which measure the steel support structure. Of course, the stress measurer, the support load measurer, the attitude measurer, the settlement measurer and the horizontal displacement measurer can be realized by correspondingly arranged sensors. The intelligent terminal is connected with the measuring device in a communication mode and comprises a data acquisition module, an early warning strategy module, a terminal audible and visual alarm and a terminal LORA communication module, wherein the data acquisition module is used for being connected with the measuring device in a communication mode and collecting monitoring data measured by the measuring device in real time, the early warning strategy module is used for carrying out data management and risk assessment and early warning on the region to be monitored according to the monitoring data, and the terminal audible and visual alarm is used for carrying out audible and visual alarm when the early warning strategy module sends out alarm instruction information. More specifically, in an embodiment of the present invention, the intelligent terminal is disposed in the corresponding sub-area to be monitored, and includes a terminal fixing member 3, where the terminal fixing member 3 includes a tubular single-ring buckle and a locking shaft, and the tubular single-ring buckle may be sleeved on the pipe and locked and fixed by the locking shaft. One end that cast list latch closure was kept away from to the locking axle is equipped with terminal host computer shell 4, and terminal host computer shell 4 and locking axle fixed connection make terminal host computer shell 4 can fixed mounting on appointed pipe fitting with this mode. And a terminal fixing plate buckle 2 is further arranged between the terminal host shell 4 and the locking shaft and used for connecting and fixing the terminal host shell 4 and the locking shaft. A terminal main circuit board and a power supply module for supplying power to the terminal main circuit board are fixedly arranged in the terminal host machine shell 4. The terminal main circuit board is integrated with a data acquisition module, an early warning strategy module, a terminal audible and visual alarm and a terminal LORA communication module, wherein the early warning strategy module reads data in the data acquisition module in real time and performs data management, risk assessment and early warning on an area to be monitored in real time according to an early warning strategy. The early warning policy is selected according to the characteristics of the measurement device, and as shown in fig. 7, 8, and 9, the general early warning policy includes an upper limit alarm policy, a variable quantity alarm policy, and a differential alarm policy. And each alarm strategy is subjected to line crossing value setting according to the field requirements. Meanwhile, when an alarm strategy is determined, differential calculation is carried out on the monitoring data, and when the speed of the result of the differential calculation tends to the alarm limit value of the early warning strategy is increased, the frequency of the measurement device for collecting the monitoring data is increased. Meanwhile, the alarm action can be output in advance by judging the change trend of the monitoring data. The device supports the debugging and triggering of the alarm strategy, and different alarm modes can be selected according to the triggering priority set by the user.
In the invention, the intelligent terminal also comprises a terminal sensor interface board 6, one end of the terminal sensor interface board 6 is connected with the data acquisition module, and the other end is connected with a plurality of measuring devices through data lines, in this way, the monitoring data measured by the measuring devices can be transmitted to the data acquisition modules in a wired transmission mode. Meanwhile, a plurality of interfaces are arranged on the terminal sensor interface board 6 so as to facilitate a plurality of measuring devices to transmit data simultaneously. Terminal LORA communication module is still including locating terminal LORA communication antenna 5 of 4 bottoms on terminal host computer shells, and this terminal LORA communication antenna 5 is used for sending and receiving communication signal. And a terminal device indicating lamp is further arranged on the terminal host shell 4 and prompts the working condition and the fault condition of the intelligent terminal by displaying different colors. For example, a green light indicates that the device is working properly and a red light indicates that the device is malfunctioning. Meanwhile, the working condition and the fault condition of the intelligent terminal can be prompted through the stroboscopic speed.
As shown in fig. 2, 4 and 6, a plurality of intelligent terminals are in communication connection with a management server in an LORA communication mode, that is, the management server is in communication connection with a plurality of intelligent terminals through an LORA gateway, and the management server is used for recording sound-light alarm events of each intelligent terminal, monitoring data corresponding to sound-light alarm time, storing all the monitoring data, updating an early warning strategy of an early warning strategy module, remotely controlling the intelligent terminals to correspond to each other, and performing data transmission with a cloud platform. Specifically, the management server comprises a data storage module, an early warning strategy analysis module, a wireless communication module and a server audible and visual alarm, wherein the data storage module is used for receiving and storing the monitoring data, the early warning strategy analysis module is used for reading the monitoring data and updating an early warning strategy of the early warning strategy module according to the type of the monitoring data, the wireless communication module comprises a 4G network communication unit and a server LORA communication unit, and the server audible and visual alarm also performs audible and visual alarm when the intelligent terminal sends audible and visual alarm information. In the invention, when the management server is in communication connection with a plurality of intelligent terminals, the plurality of intelligent terminals are in parallel communication principle in time, and the management server performs LORA network communication management through an improved Mesh network. Specifically, wireless communication module includes 4G network communication unit and loRa network server, and wherein, 4G network communication unit is used for carrying out the communication with cloud platform, and loRa network server is used for the timely parallel communication with a plurality of intelligent terminal. The wireless communication module further comprises a channel resource idle judging and distributing unit, wherein the channel resource idle judging and distributing unit is used for capturing an idle channel of the LoRa network server and distributing channels for the intelligent terminal according to the communication authority application of the intelligent terminal. More specifically, the channel resource idle determining and allocating unit needs to pre-determine the size of the resource for the intelligent terminal communication before allocating the idle channel, so as to adjust the capacity of the idle channel, so that the capacity of the idle channel matches the size of the resource. In an embodiment of the present invention, the channel resource idle determination and allocation unit first captures an idle channel and numbers the idle channel, such as idle channel X. When the A, B intelligent terminal needs to communicate, the A, B intelligent terminal applies for the communication authority, after the communication authority is applied, the channel resource idle judging and allocating unit of the management server allocates specific channels according to the system communication state and the channel use condition, and when the A, B intelligent terminal needing to communicate receives the same communication channel number X, the communication is performed on the channel X. When A, B the smart terminal finishes communication, the communication channel X is released, A, B the smart terminal returns to the common channel to wait for the next communication. The communication mechanism can solve the problems of wireless delay waiting or packet loss failure caused by the space electromagnetic wave interference problem on a radio communication channel.
More specifically, in one embodiment of the present invention, the management server further includes a server host housing 11, a server sensor and charging interface board 12, and a server fixing member 10, wherein the server host housing 11 is configured to accommodate a server main circuit board, and a data storage module, an early warning policy analysis module, a wireless communication module, and a server audible and visual alarm are integrated on the server main circuit board. The server sensor and charging interface board 12 is disposed on the server host shell 11, the server sensor and charging interface board 12 is connected to the data storage module, and the server fixing member 10 is fixedly disposed on the server host shell 11 and is used for supporting and fixing the server host shell 11. The server fixing member 10 includes a tubular single-ring buckle and a locking shaft, and the tubular single-ring buckle can be sleeved on the pipe and is locked and fixed by the locking shaft. One end that cast list ring was detained is kept away from to the locking axle is equipped with server host computer shell 11, server host computer shell 11 and locking axle fixed connection for with this way, server host computer shell 11 can fixed mounting on appointed pipe fitting. The management server further comprises a server indicator light 13, a wireless antenna 14 and a server LoRa communication antenna which are arranged on the server host shell 11. More specifically, the management server further includes a server fixing plate 9 provided between the server host casing 11 and the server fixing member 10.
The invention also provides a safety monitoring and early warning method for the steel supporting structure, which specifically comprises the following steps:
the method comprises the steps of dividing a region to be monitored into a plurality of sub-regions to be monitored, and arranging a plurality of measuring devices and an intelligent terminal in communication connection with the measuring devices according to the characteristics of the sub-regions to be monitored. The measuring device at least includes a stress measurer, a support load measurer, an attitude measurer, a settlement measurer, and a horizontal displacement measurer for measuring the steel support structure, but is not limited to the above measuring devices, and other devices and sensors that can measure and monitor the safety performance index of the steel support structure are applicable to the present invention.
And step two, selecting an early warning strategy of the intelligent terminal according to a plurality of measuring devices arranged in the sub-area to be monitored. The early warning strategy comprises an upper limit warning strategy, a variable quantity warning strategy and a differential warning strategy. However, the present invention is not limited to the above alarm strategies, and the alarm strategies are set according to the monitored data, and meanwhile, the alarm strategies need to be updated in real time according to the monitored data of the alarm events, so that the alarm strategies have stronger adaptability, higher accuracy and faster response.
And step three, the intelligent terminal collects monitoring data measured by the plurality of measuring devices and performs data management, risk assessment and early warning on the area to be monitored according to the early warning strategy. Specifically, step three includes the following substeps:
(1) and the data acquisition module of the intelligent terminal acquires the monitoring data measured by the plurality of measuring devices and sends the acquired monitoring data to the data storage module according to the type of the data.
(2) The early warning strategy module reads the monitoring data in the data storage module, matches the monitoring data with a corresponding early warning strategy according to the type of the monitoring data, and carries out risk assessment on the region monitored by the corresponding measuring device according to the monitoring data and the matched early warning strategy.
(3) And (3) if the risk value of the risk assessment is larger than the threshold value of the early warning strategy, starting an audible and visual alarm by the early warning strategy module to perform audible and visual alarm, simultaneously transmitting audible and visual alarm information of the early warning strategy module to an adjacent intelligent terminal through a terminal LoRa communication module to prompt the frequency of monitoring data acquisition encrypted by the adjacent intelligent terminal, and otherwise, repeating the step (1) and the step (2).
And fourthly, the management server is in communication connection with the intelligent terminals by adopting an LoRa gateway, records the monitoring data and the early warning events of the intelligent terminals, sends all the monitoring data to a cloud platform for data storage, updates an early warning strategy according to the monitoring data of the early warning events, and sends the updated early warning strategy to the intelligent terminals.
In the invention, the step of transmitting the acousto-optic alarm information of the early warning strategy module to the adjacent intelligent terminal through the terminal LoRa communication module specifically comprises the following steps:
(1) and the channel resource idle judging and distributing unit captures idle channels of the LoRa network server and records the numbers of all the idle channels.
(2) The intelligent terminal that carries out acousto-optic warning and rather than adjacent intelligent terminal's terminal loRa communication module send the communication authority application to loRa network server, loRa network server audits this communication authority application, if accord with communication protocol, then for carrying out acousto-optic warning intelligent terminal and rather than adjacent intelligent terminal's terminal loRa communication module allocation idle channel's serial number, carry out acousto-optic warning intelligent terminal and rather than adjacent intelligent terminal's terminal loRa communication module then communicate at the idle channel under this serial number, with the frequency of the relevant type monitoring data acquisition of suggestion rather than adjacent intelligent terminal encryption, otherwise, do not allocate idle channel.
(3) After the mutual communication is finished, the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal release the channel and return to the public channel to wait for the next communication.
The invention adopts the integrated design of on-site timely monitoring, result early warning, alarm output, event recording and the like of the multiple sensors, reports the early warning in real time in a grading manner, realizes centralized process control in the construction process, greatly shortens the early warning reminding period and has high alarm speed and response. Meanwhile, the risk occurrence process monitoring data is recorded in the whole process, and a data basis is provided for later-stage accident identification.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A steel supporting structure safety monitoring and early warning system is characterized by comprising a plurality of measuring devices, a plurality of intelligent terminals, a management server and a cloud platform,
the plurality of measuring devices are arranged in the area to be monitored and are used for measuring monitoring data of the area to be monitored;
the intelligent terminal is in communication connection with the plurality of measuring devices of the sub-region to be monitored and comprises a data acquisition module, an early warning strategy module, a terminal audible and visual alarm and a terminal LoRa communication module, wherein the data acquisition module is used for being in communication connection with the plurality of measuring devices of the sub-region to be monitored and acquiring monitoring data measured by the measuring devices in real time;
the management server is in communication connection with the intelligent terminals through an LoRa gateway by adopting a LoRa network and is used for receiving monitoring data of each intelligent terminal and updating the early warning strategy module of each intelligent terminal, and meanwhile, sound-light alarm is also carried out when the intelligent terminals carry out sound-light alarm, and sound-light alarm events corresponding to the sound-light alarm of the terminals are recorded;
the cloud platform is in communication connection with the management server and is used for receiving and storing monitoring data of the management server.
2. The steel supporting structure safety monitoring and early warning system of claim 1, wherein the measuring device comprises a stress measurer, a supporting load measurer, an attitude measurer, a settlement measurer and a horizontal displacement measurer which are used for measuring the steel supporting structure.
3. The steel supporting structure safety monitoring and early warning system of claim 1, wherein the intelligent terminal further comprises a terminal main circuit board for integrating the data acquisition module, the early warning strategy module, the audible and visual alarm and the terminal LoRa communication module;
the intelligent terminal further comprises a terminal host shell, a terminal sensor interface board and a terminal fixing piece, wherein the terminal host shell is used for accommodating the terminal host circuit board, the terminal sensor interface board is arranged on the terminal host shell, one end of the terminal sensor interface board is connected with the data acquisition module, the other end of the terminal sensor interface board is connected with the plurality of measuring devices through data lines, and the terminal fixing piece is arranged on the terminal host shell and used for supporting and fixing the terminal host shell.
4. The steel supporting structure safety monitoring and early warning system of claim 1, wherein the management server comprises a data storage module, an early warning strategy analysis module, a wireless communication module and a server audible and visual alarm, the data storage module is used for receiving and storing the monitoring data, the early warning strategy analysis module is used for reading the monitoring data of the data storage module and updating an early warning strategy of the early warning strategy module according to the monitoring data, and the wireless communication module comprises a 4G network communication unit and a LoRa network server.
5. The steel supporting structure safety monitoring and early warning system of claim 4, wherein the wireless communication module further comprises a channel resource idle judging and allocating unit, and the channel resource idle judging and allocating unit is configured to capture an idle channel of the LoRa network server and allocate a channel to the intelligent terminal according to the communication authority application of the intelligent terminal.
6. The steel support structure safety monitoring and early warning system of claim 5, wherein the management server further comprises a server main circuit board for integrating the data storage module, the early warning strategy analysis module, the wireless communication module and the server audible and visual alarm;
the management server also comprises a server host shell, a server sensor, a charging interface board and a server fixing piece, wherein the server host shell is used for accommodating the server main circuit board, the server sensor and the charging interface board are arranged on the server host shell, the server sensor and the charging interface board are connected with the data storage module, and the server fixing piece is fixedly arranged on the server host shell and used for supporting and fixing the server host shell.
7. The safety monitoring and early warning method for the steel supporting structure is characterized by comprising the following steps of:
s1, dividing the region to be monitored into a plurality of sub-regions to be monitored, and arranging a plurality of measuring devices and an intelligent terminal in communication connection with the measuring devices according to the characteristics of the sub-regions to be monitored;
s2, selecting an early warning strategy of the intelligent terminal according to a plurality of measuring devices arranged in sub-areas to be monitored;
s3, the intelligent terminal collects monitoring data measured by the measuring devices, and performs data management, risk assessment and early warning on an area to be monitored according to the early warning strategy;
the management server S4 adopts an LoRa gateway to be in communication connection with a plurality of intelligent terminals, records monitoring data and early warning events of the intelligent terminals, sends all the monitoring data to a cloud platform for data storage, updates early warning strategies according to the monitoring data of the early warning events, and sends the updated early warning strategies to the intelligent terminals.
8. The steel supporting structure safety monitoring and early warning method according to claim 7, wherein the measuring device comprises a stress measurer, a supporting load measurer, an attitude measurer, a settlement measurer and a horizontal displacement measurer which are used for measuring the steel supporting structure.
9. The steel supporting structure safety monitoring and early warning method as claimed in claim 7, wherein in step S2, the early warning strategies include an upper limit warning strategy, a variation warning strategy and a differential warning strategy;
step S3 specifically includes the following steps:
s31, the data acquisition module of the intelligent terminal acquires the monitoring data measured by the plurality of measuring devices and sends the acquired monitoring data to the data storage module according to the type of the data;
the S32 early warning strategy module reads the monitoring data in the data storage module, matches the corresponding early warning strategy for the monitoring data according to the type of the monitoring data, and carries out risk assessment on the region monitored by the corresponding measuring device according to the monitoring data and the matched early warning strategy;
s33, if the risk value of the risk assessment is larger than the threshold value of the early warning strategy, the early warning strategy module starts an audible and visual alarm to give audible and visual alarm, and simultaneously, the early warning strategy module transmits audible and visual alarm information to the adjacent intelligent terminal through the terminal LoRa communication module to prompt the frequency of monitoring data acquisition of the adjacent intelligent terminal in an encryption mode, and otherwise, the steps S31 and S32 are repeated.
10. The steel supporting structure safety monitoring and early warning method according to claim 7, wherein in the step S33, the step of transmitting the acousto-optic warning information of the early warning strategy module to the adjacent intelligent terminal through the terminal LoRa communication module specifically comprises the following steps:
s331, capturing an idle channel of the LoRa network server by the channel resource idle judging and distributing unit, and recording the numbers of all the idle channels;
s332, the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal send communication authority applications to a LoRa network server, the LoRa network server audits the communication authority applications, if the communication protocols are met, numbers of idle channels are distributed to the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal, the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal perform communication on the idle channels under the numbers to prompt the frequency of monitoring data collection of relevant types encrypted by the intelligent terminal adjacent to the intelligent terminal, and otherwise, the idle channels are not distributed;
and S333, after the mutual communication is finished, the intelligent terminal performing sound-light alarm and the terminal LoRa communication module of the intelligent terminal adjacent to the intelligent terminal release the channel and return to the public channel to wait for the next communication.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115082850A (en) * | 2022-05-23 | 2022-09-20 | 哈尔滨工业大学 | Template support safety risk identification method based on computer vision |
| CN115273390A (en) * | 2022-07-29 | 2022-11-01 | 安睿智达(成都)科技有限公司 | Multi-terminal management alarm center platform and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115082850A (en) * | 2022-05-23 | 2022-09-20 | 哈尔滨工业大学 | Template support safety risk identification method based on computer vision |
| CN115273390A (en) * | 2022-07-29 | 2022-11-01 | 安睿智达(成都)科技有限公司 | Multi-terminal management alarm center platform and method |
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