CN107845236B - Construction operation safety protection early warning system based on real-time positioning and early warning method thereof - Google Patents
Construction operation safety protection early warning system based on real-time positioning and early warning method thereof Download PDFInfo
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- CN107845236B CN107845236B CN201711266639.4A CN201711266639A CN107845236B CN 107845236 B CN107845236 B CN 107845236B CN 201711266639 A CN201711266639 A CN 201711266639A CN 107845236 B CN107845236 B CN 107845236B
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Abstract
The invention discloses a construction operation safety protection early warning system based on real-time positioning and an early warning method thereof, wherein the early warning system comprises a positioning label with a relay and a positioning label on a construction operation site, the positioning label with the relay sends distances between the positioning label and a first base station, a second base station and a third base station to a communication base station, the positioning label sends distances between the positioning label and the first base station, the second base station and the third base station to the communication base station, and the communication base station communicates with a comprehensive management display terminal and a positioning engine server and sends distance information; the early warning method comprises the following steps: acquiring a space coordinate position and a corresponding time value, calculating the distance between equipment in a construction operation area, judging whether the distance exceeds an early warning threshold value or not, and carrying out sound and light alarm. The invention has strong anti-interference capability, reduces the risk of safety management and improves the safety management level and the comprehensive benefit of building construction. Is convenient for wide popularization and application of construction enterprises.
Description
Technical Field
The invention belongs to the field of construction operation safety protection early warning system and method based on real-time positioning.
Background
A large amount of welding operation is generally needed in a civil construction site, acetylene and oxygen are used for welding and cutting metal, spraying on the surface of the metal and the like, the acetylene is active in chemical property, belongs to the class A fire hazard category, has larger fire and explosion hazards, and is very important in fire prevention and explosion prevention; the oxygen cylinder and the acetylene cylinder are too close to each other, so that great potential safety hazards exist; the oxygen cylinder and the acetylene cylinder are too close to the welding gun in the working state, and there is a possibility of causing explosion or fire. Therefore, two problems need to be solved, namely that the distance between an oxygen cylinder and an acetylene cylinder is within the limit range of 5m, early warning can be realized, and site safety personnel can position and take measures in time to avoid potential safety hazards; and the other is that when the distance between the welding gun and the second-class bottle is within the limit range of 10m in the operation process, the early warning can be also realized, so that the operation distance can be adjusted by an operator in time. The traditional method is to separately place two types of bottles in two types of operation vehicles or store the bottles in different storage yards, but the problem cannot be solved well.
In addition, in civil engineering operation, such as butt joint and splicing of immersed tube tunnels, butt joint of underground continuous wall reinforcement cages and butt joint of equipment units in welding operation fields, positioning and tracking of workers in dangerous operation areas such as tunnels in construction are needed, immediate reminding and warning of workers nearby existing lines are needed, and the requirement of real-time positioning and early warning cannot be effectively met by the traditional technical means.
And the networked real-time distance measurement and positioning based on real-time positioning can greatly improve the operation efficiency and the comprehensive management level, and can well solve the problem.
Disclosure of Invention
The invention is provided for solving the problems in the prior art, and aims to provide a construction operation safety protection early warning system based on real-time positioning and an early warning method thereof.
The technical scheme of the invention is as follows:
the utility model provides a construction operation safety protection early warning system based on real-time location, includes the location label A and the location label B of taking the relay of construction operation scene, the location label A of taking the relay will with I basic station, II basic stations, the distance between III basic stations send to the communication basic station, location label B will with I basic station, II basic stations, the distance between III basic stations send to the communication basic station, the communication basic station with integrated management display terminal, location engine server communication and send distance information.
And the positioning tag A and the positioning tag B with the relays are both UWB tags.
The positioning tag A with the relay is arranged between the positioning tag A and the base station I, the base station II and the base station III, and the positioning tag B is arranged between the positioning tag B and the base station I, the base station II and the base station III through ADS-TWR technology.
The base station I, the base station II and the base station III are in a honeycomb expandable shape.
The comprehensive management display terminal comprises an electronic map interaction module, an object event management module, an alert area module and a playback module.
An early warning method of a construction operation safety protection early warning system based on real-time positioning comprises the following steps:
acquiring space coordinate position and corresponding time value
Acquiring coordinate positions and time values of the positioning labels A and B with the relays by using an ADS-TWR technology;
ii, calculating the distance between each device in the construction operation area
Calculating the distance between every two devices of the device with the positioning label A of the relay and the device with the positioning label B according to the information obtained in the step i;
iii, judging whether the early warning threshold value is exceeded or not
And (5) comparing the equipment distance obtained by calculation in the step ii with a preset threshold value, and judging by combining the monitoring interval, the coordinate position and the time value.
Iv, performing sound and light alarm
And if the calculated distance in the step iii exceeds a preset threshold value, triggering a buzzer to perform sound-light alarm.
The monitoring interval is an accessible monitoring interval, and if the number of the positioning tags A and B with the relays in the monitoring interval exceeds the receivable number, an alarm is given out; and if the stay time of the positioning label A and the positioning label B with the relays in the monitoring interval exceeds the preset time, giving an alarm.
If the monitoring interval is the interval which is forbidden to enter, if the coordinate position passes through the monitoring interval, an alarm is given out.
And the coordinate positions of the positioning label A and the positioning label B with the relays can carry out linkage control on the camera shooting acquisition device in the construction operation area.
The early warning method further comprises the step of storing the coordinate position, the corresponding time value and the equipment distance value, and the steps of recording the personnel path in real time, recording the track of any time period, inquiring and recording the personnel movement track and storing statistical data of the multi-person movement track are achieved.
The invention has the following beneficial effects:
the invention has strong anti-interference capability, is not influenced by weather, wood boards, plastics, glass and strong electric fields, and does not interfere other signals.
The invention aims at the real-time grasp of the positions of personnel and equipment, and the management and control efficiency is greatly improved.
The invention has no spectrum interference with other communication technologies and can be used in a mixed way.
The invention effectively prevents casualty events and protects the safety of staff; the classification informatization of the acetylene cylinder and the oxygen cylinder is realized.
The invention effectively controls the inspection process and better supervises and manages.
The invention realizes multi-target dynamic real-time ranging, and the early warning object has randomness, instant invasion and real-time requirement, needs dynamic real-time measurement and is many-to-many. The invention can solve the technical problem of dynamic real-time distance measurement.
The invention solves the problem of real-time communication mechanism of multi-target networked distribution;
the invention can automatically identify the power supply corresponding to the electric welding gun and automatically remotely cut off the power supply according to the measured distance;
the invention can realize the storage of oxygen and acetylene cylinders on the construction site, safety protection and early warning during operation, reduce the risk of safety management and improve the safety management level and the comprehensive benefit of construction. Is convenient for wide popularization and application of construction enterprises.
Drawings
FIG. 1 is a schematic diagram of the connection of the early warning system of the present invention;
fig. 2 is an internal schematic view of the integrated management display terminal of the present invention;
FIG. 3 is a schematic diagram of an early warning method in embodiment 1 of the present invention;
wherein:
1 positioning label A2 positioning label B with relay
No. 3I base station and No. 4 II base station
5 III base station 6 communication base station
7 switch 8 integrated management display terminal
9 positioning engine server 10 electronic map interaction module
11 object event management Module 12 event management Module
13 alert zone module 14 playback module.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1-2, a construction operation safety protection early warning system based on real-time location, including construction operation scene's location label A1 and location label B2 of taking the relay, location label A1 of taking the relay will with the distance between 3, II number base station 4, III number base station 5 send to communication base station 6, location label B2 will with I number base station 3, II number base station 4, III number base station 5 between the distance send to communication base station 6, communication base station 6 communicates with integrated management display terminal 8, location engine server 9 and sends distance information.
Positioning label A1 and positioning label B2 with relay are both UWB labels.
The positioning label A1 with the relay is arranged between the positioning label A2 and the base station 3, the base station 4 and the base station 5, and the positioning label B2 is arranged between the positioning label A3578 and the base station 3, the base station 4 and the base station 5.
The base station I3, the base station II 4 and the base station III 5 are in a honeycomb expandable shape.
The integrated management display terminal 8 comprises an electronic map interaction module 10, an object event management module 11, an event management module 12, an alert area module 13 and a playback module 14.
The communication base station 6 communicates with the integrated management display terminal 8 and the positioning engine server 9 through the switch 7 or the WI-FI.
Uwb (ultra wideband) is a carrier-free communication technology that uses pulse signals for transmission. UWB positioning realizes the three-dimensional dynamic positioning to the object through the small-size UWB label that attaches on the object.
Positioning label A1 with relays, positioning label B2, base station I3, base station II 4 and base station III 5 are arranged in the area to be positioned, so that the area to be positioned is completely covered. The tag is configured by the unit to be located. The UWB to-be-positioned base stations are in two-way communication, after the base stations receive signals, the positioning engine server measures the distance between the labels and each base station through the ADS-TWR technology, each base station sends distance information to the communication base station by utilizing the UWB communication function, and finally the distance information is transmitted to the server through WiFi to be positioned and displayed.
The electronic map interaction module 10 is closely combined with a geographic information technology, and functions of query retrieval, statistical analysis and the like based on spatial positions are realized through a visual electronic map graphical display interface and rich and convenient human-computer interaction operation.
The object event management module 11 realizes complete storage of system setting parameters, management object position data and other contents in the system, and realizes scientific and effective management through organic data organization. On the basis of the method, a plurality of different types of query retrieval based on time, position, management objects and the like can be provided.
The event management module 12 manages alarm events of types such as a management object distance, an alert area and the like occurring in the monitoring process according to parameter setting in the system, and realizes functions of event tracking, backtracking, query statistics and the like. And an intelligent, convenient and visual auxiliary management means is provided according to different types of events such as the severity, the urgency and the duration.
The alert zone module 13 provides relative positional relationship monitoring of the management object and the designated zone for security management issues of the key zone. After an alert area is designated on the electronic map in a man-machine interaction mode, the system can automatically monitor an event that an object enters (or leaves) the designated area within a designated time period, and further give an alarm for prompting.
The playback module 14 rapidly retrieves the historical database based on two dimensions of time and space, realizes scene playback based on an electronic map at any historical time, and intuitively obtains spatial position distribution of management objects and historical alarm events in a specified time period.
An early warning method of a construction operation safety protection early warning system based on real-time positioning comprises the following steps:
acquiring space coordinate position and corresponding time value
Coordinate positions and time values of the positioning label A1 and the positioning label B2 of each relay are obtained through the ADS-TWR technology.
Ii, calculating the distance between each device in the construction operation area
And (3) calculating the distance between the equipment with the positioning label A1 of the relay and the equipment with the positioning label B2 according to the information obtained in the step i.
Iii, judging whether the early warning threshold value is exceeded or not
And (5) comparing the equipment distance obtained by calculation in the step ii with a preset threshold value, and judging by combining the monitoring interval, the coordinate position and the time value.
Iv, performing sound and light alarm
And if the calculated distance in the step iii exceeds a preset threshold value, triggering a buzzer to perform sound-light alarm.
The monitoring interval is an accessible monitoring interval, and if the quantity of the positioning tags A1 and B2 with relays in the monitoring interval exceeds the receivable quantity, an alarm is given; if the stay time of the positioning label A1 with the relay and the positioning label B2 in the monitoring interval exceeds the preset time, an alarm is sent out.
If the monitoring interval is the interval which is forbidden to enter, if the coordinate position passes through the monitoring interval, an alarm is given out.
The coordinate positions of the positioning labels A1 and B2 with the relays can carry out linkage control on the camera shooting acquisition device in the construction operation area.
The early warning method further comprises the step of storing the coordinate position, the corresponding time value and the equipment distance value, and the steps of recording the personnel path in real time, recording the track of any time period, inquiring and recording the personnel movement track and storing statistical data of the multi-person movement track are achieved.
The real-time recording of the personnel path indicates that the personnel path is in a positioning area, the positioning base station can sense signals at any position at any time and upload the signals to a positioning engine server, the specific information (such as personnel ID, position and specific time) is obtained through analysis and processing of a positioning algorithm, and meanwhile, the personnel path can be dynamically displayed (in real time) on a large screen of a monitoring center and backed up on a computer terminal, so that a manager can know the state of tunnel construction personnel at any time.
The track recording of any time period means that once an emergency occurs in a positioning area, a person carrying the tag can send an alarm by pressing a positioning button on the carried positioning tag, and meanwhile, a dynamic display interface of a monitoring room can immediately trigger an alarm event and record the alarm event
The personnel motion track query record refers to the viewing of historical motion tracks: when an emergency occurs, the wireless positioning system reserves the final moving position of personnel and provides important reference for accurate emergency search and rescue; and the wireless positioning handheld system is utilized to search and rescue on-site personnel.
The multi-person movement track statistical data storage means that a daily person management manager can watch the activity conditions of tunnel constructors and equipment on a large screen or a computer at any time, can check the information conditions of any area, any team/part/individual, can print reports (optional), and can inquire historical data (optional), thereby bringing great convenience for management.
The camera shooting acquisition device carries out linkage control, and the position information and the surrounding environment information of personnel can be visually displayed in a PC (personal computer) terminal by combining a camera linkage technology. For the real-time activity condition of personnel in a production field, video monitoring is adopted for recording and archiving, and the ultra-wideband positioning technology is combined with the video linkage technology to analyze, judge and find whether a person enters a safety forbidden zone so as to realize intelligent monitoring of an important area. Through the technologies, the field workers can work in the appointed time and the appointed work place according to the requirements without entering other areas by mistake, the non-operation visitors can visit the appointed route and the appointed area without entering a safety forbidden area by mistake, the patrol team personnel can find the potential safety hazard on the field in time, and the accident can be avoided. The system realizes the alarm reminding function at the working site and the monitoring center, adopts acousto-optic alarm to remind field personnel of paying attention to safety at the front end (working site), and alarms at the rear end (monitoring center) to actively remind the monitoring personnel of paying attention to the safety condition of the field.
The standardized management of the safety operation of the working site is realized through the positioning system, the quality of the safety operation of the working site is further controlled, the working efficiency is improved, the safety and the reliable quality of the field operation process are ensured, and the risk of the field operation is reduced.
After the system receives the alarm signal, an alarm bell or an audible and visual alarm of a working site can automatically trigger alarm information to prompt field personnel to pay attention. The monitoring center staff can also prompt the field staff to pay attention to the safety through the broadcasting system.
As shown in fig. 3, taking a welding operation as an example, a positioning tag is provided on an oxygen cylinder, a positioning tag is provided on an acetylene cylinder, a positioning tag a with a relay is provided on an electric welding gun, a cellular base station collects the two positioning tags, the positioning tag a with the relay, and a time value, and transmits information to a communication base station, and the communication base station transmits the information to a comprehensive management display terminal and a positioning engine server.
The threshold values are set as follows: the distance between the oxygen cylinder and the acetylene cylinder is less than 5m, the distance between the oxygen cylinder and the electric welding gun is less than 10m, and the distance between the acetylene cylinder and the electric welding gun is less than 10 m.
The effect is as follows:
a. in the welding process, once the distance between an operation point and dangerous articles such as an oxygen cylinder, an acetylene cylinder and the like is less than 10m, early warning is immediately carried out, and the operation is forcibly stopped when power is off;
b. in the operation process of the oxygen cylinder and the acetylene cylinder, once the storage distance is less than 5 meters, early warning is immediately carried out, so that field safety personnel can position and take measures in time, and potential safety hazards are eliminated.
The above is only a simple embodiment of the invention.
In civil work, networked real-time distance measurement and positioning can improve the work efficiency and the comprehensive management level to a great extent, such as butt joint and assembly of immersed tube tunnels, butt joint of underground continuous wall reinforcement cages, meeting of work safety requirements of equipment units in welding operation fields, positioning and tracking of workers in dangerous work areas such as tunnels in construction and the like, and immediate reminding and warning of workers nearby existing lines.
Claims (5)
1. A construction operation safety protection early warning system early warning method based on real-time positioning is characterized in that: the method comprises the following steps:
obtaining the spatial coordinate position and the corresponding time value
Acquiring coordinate positions and time values of each positioning label A (1) with the relay and each positioning label B (2) with the relay by using an ADS-TWR technology;
(ii) calculating the distance between the equipments in the construction work area
Calculating the distance between every two devices of the device with the positioning label A (1) of the relay and the device with the positioning label B (2) according to the information obtained in the step (i);
(iii) determining whether an early warning threshold has been exceeded
Comparing the equipment distance obtained by calculation in the step (ii) with a preset threshold value, and judging by combining a monitoring interval, a coordinate position and a time value;
(iv) performing an audible and visual alarm
If the calculated distance in the step (iii) exceeds a preset threshold value, triggering a buzzer to perform sound-light alarm; while the contacts in the relay for connecting external devices are opened.
2. The early warning method of the construction operation safety protection early warning system based on real-time positioning as claimed in claim 1, wherein: the monitoring interval is an accessible monitoring interval, if the number of the positioning tags A (1) and the positioning tags B (2) with the relays in the monitoring interval exceeds the receivable number, an alarm is sent out, and meanwhile, the contacts used for connecting external equipment in the relays are disconnected; and if the stay time of the positioning label A (1) and the positioning label B (2) with the relay in the monitoring interval exceeds the preset time, giving an alarm, and simultaneously disconnecting the contact used for connecting the external equipment in the relay.
3. The early warning method of the construction operation safety protection early warning system based on real-time positioning as claimed in claim 1, wherein: if the monitoring interval is the interval which is forbidden to enter, if the coordinate position passes through the monitoring interval, an alarm is given out.
4. The early warning method of the construction operation safety protection early warning system based on real-time positioning as claimed in claim 1, wherein: and the coordinate positions of the positioning labels A (1) and B (2) with the relays can be used for performing linkage control on the camera shooting acquisition device in the construction operation area.
5. The early warning method of the construction operation safety protection early warning system based on real-time positioning as claimed in claim 1, wherein: the early warning method further comprises the step of storing the coordinate position, the corresponding time value and the equipment distance value, and the steps of recording the personnel path in real time, recording the track of any time period, inquiring and recording the personnel movement track and storing statistical data of the multi-person movement track are achieved.
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