Background
At present, in the aspect of dynamic safety management and response of process flows in the construction process, the work experience of field personnel is mainly relied on to react with the field, however, various researches on construction safety risks show that unsafe behaviors of people are an important reason for construction accidents. Even if the worker is trained in advance, it is difficult to ensure that the worker can accurately operate and cooperate in the actual construction.
With the development of the internet of things technology, various sensors and monitoring technologies are widely applied to quality detection and safety monitoring of construction sites. For safety monitoring of a construction process, monitoring technologies such as video monitoring, RFID technology and mechanical sensors are often adopted to monitor the structure, personnel and environment states of a construction site, then monitoring data are transmitted to a computer background, and judgment and early warning are carried out after calculation and analysis.
At present, the safety monitoring applied to a construction site belongs to state monitoring, each sensor is set to be a fixed threshold value for each parameter, and when a monitoring value exceeds the threshold value, an alarm is given out, so that the method belongs to a subsequent passive monitoring mode. For example, "internet of things wireless intelligent tower crane operation monitoring construction technology" written by pigment and bin and the like, in the research, a tower crane is monitored through a wind speed sensor, an amplitude sensor, an angle sensor and the like, a threshold value is set for a measured value of each sensor, and the threshold value of each monitoring parameter is kept unchanged in the whole construction process.
However, a construction site is a dynamically changing process, especially a construction process, which is a continuous changing process of a plurality of different states. The construction process monitoring and the worker accurate operation prompting are helpful for guaranteeing the correctness of the construction process and the construction safety.
Disclosure of Invention
Aiming at the defects of the related technology, the invention aims to provide a program type operation construction navigation and safety monitoring system and method, aiming at enhancing the guidance and control of program type operation safety in the construction process, dynamically monitoring and feeding back the safety progress and completion condition of the construction process and actively managing the safety of the construction process.
In order to achieve the above object, one aspect of the present invention provides a procedural operation navigation and safety monitoring system, which includes
The acquisition module is used for acquiring data of a construction site;
the front-end processing module is used for receiving and preprocessing the acquired data;
the data input module is used for presetting procedure contents and a threshold value of the program type operation construction, wherein the threshold value corresponds to the current procedure step;
the data processing module comprises an operation indicating module and a safety monitoring module; the operation indicating module is used for acquiring the completion progress of the working steps according to the acquired data and judging the current working procedure; the safety monitoring module is used for comparing the acquired data with a threshold value and monitoring whether an abnormity occurs in the construction process;
and the alarm navigation module sends out an alarm of abnormal working step state and a navigation voice prompt of working step jumping according to the result of the data processing module.
Furthermore, the system also comprises a human-computer interaction module which is used for displaying the current process steps and the adjustment process.
And the data transceiver module is used for receiving the data sent by the front-end processing module and sending the data to the background monitoring system.
Further, the acquisition module comprises an electronic tag, a switch sensor, an inclination angle sensor, a wind speed sensor, a displacement sensor and a stress-strain sensor.
Furthermore, the front-end processing module converts the acquired signals into corresponding physical quantities, performs calculation, analysis and preliminary monitoring, and performs emergency acousto-optic alarm on site when the threshold value is exceeded.
Further, the collected data includes
The technical parameter monitoring value is used for measuring the completion progress of the working steps;
and the safety parameter monitoring value is used for indicating whether the construction process is abnormal or not.
Further, the operation indication module is configured to obtain a completion progress of the working step according to the collected data, and determine that the current process step includes:
and comparing the technical parameter monitoring value with a corresponding threshold value, wherein if the corresponding threshold value is reached, the current working step is finished, otherwise, the working step is not finished.
The invention also provides a monitoring method based on the program type operation construction navigation and safety monitoring system, which comprises the following steps:
(1) presetting process contents and a threshold value of a construction process;
(2) setting an initial procedure;
(3) judging whether the safety parameter monitoring value of the current working step exceeds a threshold value, if so, sending an abnormal alarm of the working step, otherwise, continuing to execute the step (4);
(4) judging whether the technical parameter monitoring value of the current working step reaches a threshold value, if so, sending a working step jump prompt, and jumping the operation program to the next working step, otherwise, repeating the step (4) until the technical parameter monitoring value reaches the threshold value;
(5) and (4) judging whether the current process is a finished process, if so, prompting that the construction activity is finished, and otherwise, returning to the step (3).
According to the technical scheme, the monitoring data of the program type operation construction activities are collected by means of the Internet of things, the data are analyzed and processed in real time, and an abnormal alarm can be given to a single monitoring parameter in time on site. Particularly, for monitoring of a construction process, dynamic representation of a plurality of parameters is required, and the threshold values of the parameters under different processes change along with the process requirements. The invention can dynamically monitor and feed back the program type operation process in real time, can guide the implementation of the field work flow according to the corresponding early warning indication or broadcast, ensures the work completion quality, and can improve the control capability of the program type operation construction safety.
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.
In order to achieve the above object, an aspect of the embodiments of the present invention provides a system for procedural job navigation and safety monitoring, including
The acquisition module is used for acquiring data of a construction site;
the front-end processing module is used for receiving and preprocessing the acquired data;
the data input module is used for presetting procedure contents and a threshold value of the program type operation construction, wherein the threshold value corresponds to the current procedure step;
the data processing module comprises an operation indicating module and a safety monitoring module; the operation indicating module is used for acquiring the completion progress of the working steps according to the acquired data and judging the current working procedure; the safety monitoring module is used for comparing the acquired data with a threshold value and monitoring whether an abnormity occurs in the construction process;
and the alarm navigation module sends out an alarm of abnormal working step state and a navigation voice prompt of working step jumping according to the result of the data processing module.
Furthermore, the system also comprises a human-computer interaction module which is used for displaying the current process steps and the adjustment process.
And the data transceiver module is used for receiving the data sent by the front-end processing module and sending the data to the background monitoring system.
Further, the acquisition module comprises an electronic tag, a switch sensor, an inclination angle sensor, a wind speed sensor, a displacement sensor and a stress-strain sensor.
Furthermore, the front-end processing module converts the acquired signals into corresponding physical quantities, performs calculation, analysis and preliminary monitoring, and performs emergency acousto-optic alarm on site when the threshold value is exceeded.
Further, the collected data includes
The technical parameter monitoring value is used for measuring the completion progress of the working steps;
and the safety parameter monitoring value is used for indicating whether the construction process is abnormal or not.
Further, the operation indication module is configured to obtain a completion progress of the working step according to the collected data, and determine that the current process step includes:
and comparing the technical parameter monitoring value with a corresponding threshold value, wherein if the corresponding threshold value is reached, the current working step is finished, otherwise, the working step is not finished.
In another aspect, an embodiment of the present invention provides a monitoring method based on the above-mentioned program-type operation construction navigation and safety monitoring system, including the following steps:
(1) presetting process contents and a threshold value of a construction process;
(2) setting an initial procedure;
(3) judging whether the safety parameter monitoring value of the current working step exceeds a threshold value, if so, sending an abnormal alarm of the working step, otherwise, continuing to execute the step (4);
(4) judging whether the technical parameter monitoring value of the current working step reaches a threshold value, if so, sending a working step jump prompt, and jumping the operation program to the next working step, otherwise, repeating the step (4) until the technical parameter monitoring value reaches the threshold value;
(5) and (4) judging whether the current process is a finished process, if so, prompting that the construction activity is finished, and otherwise, returning to the step (3).
The following takes tower crane jacking activities as an example to explain the contents related to the above embodiment.
As shown in figure 1, the tower crane jacking activity is decomposed into 19 working steps, and corresponding monitoring parameters are set in each working step according to the process state and the completion standard of each working step. Taking the one-time jacking of the working step S6 as an example, certain requirements are provided for jacking speed and ambient wind speed in the jacking process, the jacking cross beam is required to be in a connection stressed state, and the climbing claw is in an unstressed state; the jacking height is required to reach a certain level when the working step is completed. Therefore, the safety parameters of the operation step S6 include: tower crane gradient, jacking speed, on-site wind speed, jacking height, climb the claw and take one's place, round pin hub connection, technical parameter includes: and (5) jacking the height. The specific threshold value of each monitoring parameter can be determined according to the requirements of the tower crane model size, the construction standard specification and the like. Similarly, all working steps can formulate corresponding monitoring parameters. And selecting corresponding monitoring sensors according to different monitoring parameters, and finally forming a process information list of tower crane jacking operation, wherein the process information list comprises working steps, monitoring parameters, sensors and threshold values.
To above-mentioned tower crane jacking activity, this embodiment provides a procedure formula operation construction navigation and safety monitoring system based on thing networking, specifically includes data acquisition transmission unit and monitoring unit, as shown in fig. 2.
The data acquisition and transmission unit comprises an acquisition module and a front-end processing module. The acquisition module comprises a wind speed sensor, an inclination angle sensor, a switch sensor and a displacement sensor. The sensors with different data types correspond to different front-end processing modules, and the sensors and the front-end processing modules are correspondingly connected and installed on the tower crane according to the field conditions. The front-end processing module can carry out preliminary processing and edge calculation on the sensor data, and when the sensor data exceeds a threshold value set by the front-end processing module, an audible and visual alarm is timely sent out on site, and state information of whether the state information exceeds an early warning value is sent to the monitoring unit. The alarm of the front-end processing module is mainly used for carrying out early warning on single parameters of corresponding sensors.
The monitoring unit is an industrial personal computer system and comprises a data receiving and transmitting module, a data processing module, a data input module, an alarm navigation module and a human-computer interaction module. The data receiving and sending module, the data input module, the alarm navigation module and the man-machine interaction module are all connected with the data processing module.
In the industrial personal computer system, a data receiving and transmitting module consists of a wireless receiving and transmitting chip nRF24L01 and a signal switching module, the wireless receiving and transmitting chip is responsible for receiving and transmitting digital information, and the signal switching module is a voltage converter between the wireless receiving and transmitting module and a data processing module.
The data input module can be connected with a USB serial port of the computer to modify the process content and the threshold value in the data processing module.
The data processing module is a single chip microcomputer, in particular PIC16F 873. And the singlechip judges the program according to the recorded process information and the received sensor information. The judgment procedure is as follows: (1) setting working content to be monitored and parameter thresholds; (2) setting an initial working step; (3) judging whether the safety parameter monitoring value of the current working step exceeds a threshold value, if so, sending an abnormal alarm of the working step; (4) judging whether the technical parameter monitoring value of the current working step reaches a threshold value, if so, sending a working step jump prompt and jumping the program to the next working step if the safety parameter is not abnormal; (5) and when the last working step reaches a finished state, prompting that the work is finished.
The alarm navigation module is a digital voice module, and when the measured value of the sensor exceeds a threshold value, the alarm and navigation module sends out an alarm prompt; and when the process is finished and the next process is about to enter, sending a process skip prompt.
The man-machine interaction module comprises a state display disc and a control keyboard. The state display disc is composed of a digital display and a light emitting diode, the digital display disc displays the serial number of the current working procedure, the number of the parameters to be completed and the number of the completed parameters, and the light emitting diode is a parameter abnormity alarm lamp. The operating keyboard can be used for manually adjusting procedures, starting/pausing/finishing monitoring and the like.
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.