CN107845236A - Based on the construction operation security protection early warning system positioned in real time and its method for early warning - Google Patents

Abstract

The invention discloses a construction operation safety protection early warning system based on real-time positioning and its early warning method. The early warning system includes a positioning tag with a relay and a positioning tag on the construction site. The positioning tag with a relay will be connected with No. 1 base station , base station II, and base station III are sent to the communication base station, and the positioning tag sends the distance to the base station I, base station II, and base station III to the communication base station, and the communication base station and the integrated management The display terminal and the positioning engine server communicate and send distance information; the early warning method includes the following steps: obtaining the spatial coordinate position and the corresponding time value, calculating the distance between each device in the construction work area, determining whether the early warning threshold is exceeded, and performing an audible and visual alarm. The invention has strong anti-interference ability, reduces the risk of safety management, and improves the safety management level and comprehensive benefits of building construction. It is convenient for extensive popularization and application of construction enterprises.

Description

Construction operation safety protection early warning system and early warning method based on real-time positioning

technical field

The invention belongs to the technical field, and in particular relates to a construction operation safety protection early warning system based on real-time positioning and an early warning method thereof.

Background technique

Civil construction sites generally require a lot of welding operations. Acetylene and oxygen are used for metal welding, cutting, metal surface spraying, etc. The chemical properties of acetylene are active, which belongs to the Class A fire hazard category, and has a greater fire and explosion hazard. Fire and explosion protection is very important; if the oxygen cylinder and acetylene cylinder are too close, there will be great safety hazards; if the oxygen cylinder and acetylene cylinder are too close to the welding torch in the working state, there is also the possibility of explosion or fire. Therefore, two types of problems need to be solved. One is that if the distance between the oxygen cylinder and the acetylene cylinder is within the limit of 5m, an early warning should be provided so that the on-site security personnel can locate and take measures in time to avoid potential safety hazards; When the distance between the welding torch and the second-class bottle is within the limit of 10m, an early warning should also be provided so that the operator can adjust the working distance in time. The traditional method is to separate the two types of bottles in two types of work vehicles or store them in different yards, but this cannot solve the problem well.

In addition, in civil engineering operations, such as the butt joint assembly of immersed tube tunnels, the butt joint of steel cages on underground diaphragm walls, the equipment units in the welding work site must meet the safety requirements of the work, and the workers in dangerous work areas such as tunnels during construction need to be located and tracked. Personnel need instant reminders and warnings, and traditional technical means cannot effectively address the requirement of real-time positioning and early warning.

The networked real-time ranging and positioning based on real-time positioning can greatly improve the operation efficiency and comprehensive management level, and can solve this problem well.

Contents of the invention

The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a construction operation safety protection early warning system and an early warning method based on real-time positioning.

Technical scheme of the present invention is:

A construction operation safety early warning system based on real-time positioning, including a positioning tag with a relay and a positioning tag at the construction site, and the positioning tag with a relay will communicate with the No. 1 base station, No. 2 base station, and No. 3 base station. The distance is sent to the communication base station, and the positioning tag sends the distance to the No. 1 base station, No. 2 base station, and No. 3 base station to the communication base station, and the communication base station communicates with the comprehensive management display terminal and the positioning engine server and sends the distance information .

Both the positioning tag with a relay and the positioning tag are UWB tags.

Between the positioning tag with a relay and base station I, base station II, and base station III, the distance between the positioning tag and base station I, base station II, and base station III is measured by ADS-TWR technology.

The No. 1 base station, No. 2 base station, and No. 3 base station are in a cellular expandable shape.

The comprehensive management display terminal includes an electronic map interaction module, an object event management module, an event management module, a warning area module, and a playback module.

An early warning method for a construction operation safety protection early warning system based on real-time positioning, comprising the following steps:

ⅰ. Obtain the spatial coordinate position and corresponding time value

Obtain the coordinate position and time value of each positioning tag with relay, positioning tag through ADS-TWR technology;

ⅱ. Calculate the distance between each equipment in the construction work area

Through the information obtained in step i, calculate the distance between the equipment equipped with the positioning tag of the relay and the equipment equipped with the positioning tag;

ⅲ. Determine whether the warning threshold is exceeded

Compare the device distance calculated in step ii with the predetermined threshold, and make a judgment in combination with the monitoring interval, coordinate position, and time value.

ⅳ. Sound and light alarm

If the calculated distance in step Ⅲ exceeds the predetermined threshold, a buzzer is triggered to give an audible and visual alarm.

The monitoring interval is a monitoring interval that can be entered. If the number of positioning tags and positioning tags with relays in the monitoring interval exceeds the number that can be accommodated, an alarm will be issued; When the predetermined time is reached, an alarm is issued.

If the monitoring area is forbidden to enter the monitoring area, if the coordinate position passes through the monitoring area, an alarm will be issued.

The positioning tags with relays and the coordinate positions of the positioning tags can perform linkage control on the camera collection devices in the construction work area.

The early warning method also includes storage of coordinate positions, corresponding time values, and equipment distance values, and realizes real-time recording of personnel paths, trajectory records of any time period, query records of personnel movement trajectories, and preservation of statistical data of multi-person movement trajectories.

The beneficial effects of the present invention are as follows:

The invention has strong anti-interference ability, is not affected by weather, wood boards, plastics, glass and strong electric fields, and does not interfere with other signals.

The present invention aims at grasping the positions of personnel and equipment in real time, and the management and control efficiency is greatly improved.

There is no frequency spectrum interference between the present invention and other communication technologies, and they can be used in combination.

The invention effectively prevents casualties, protects the safety of employees, and realizes the classified informationization of acetylene bottles and oxygen bottles.

The present invention effectively controls the inspection process, and better supervises and manages.

The present invention realizes multi-target dynamic real-time ranging, and the warning objects are random, and the intrusion occurs instantaneously, which requires real-time performance, requires dynamic real-time measurement, and is many-to-many. The invention can solve the technical problem of dynamic real-time ranging.

The invention solves the real-time communication mechanism problem of multi-target network distribution;

The invention can independently identify the corresponding power supply of the electric welding torch, and cut off the power supply by remote control according to the measurement distance;

The invention can realize the storage of oxygen and acetylene bottles at the building construction site, safety protection and early warning during operation, reduces the risk of safety management, and improves the safety management level and comprehensive benefits of building construction. It is convenient for extensive popularization and application of construction enterprises.

Description of drawings

Fig. 1 is the connection schematic diagram of early warning system in the present invention;

Fig. 2 is an internal schematic diagram of the comprehensive management display terminal in the present invention;

Fig. 3 is the schematic diagram of the early warning method of embodiment 1 in the present invention;

in:

1 Locating label with relay 2 Locating label

3 Base station Ⅰ 4 Base station Ⅱ

5 Base station III 6 Communication base station

7 switch 8 comprehensive management display terminal

9 Positioning engine server 10 Electronic map interaction module

11 Object Event Management Module 12 Event Management Module

13 Guard zone module 14 Playback module.

Detailed ways

Below, the present invention is described in detail with reference to accompanying drawing and embodiment:

As shown in Figures 1 and 2, a real-time positioning-based construction operation safety protection and early warning system includes a positioning tag 1 with a relay and a positioning tag 2 at the construction site. The positioning tag 1 with a relay will be connected to the No. 3. The distance between No. Ⅱ base station 4 and No. 3 base station 5 is sent to the communication base station 6, and the positioning tag 2 sends the distance between No. 1 base station 3, No. 2 base station 4, and No. 3 base station 5 to the communication base station 6. The communication base station 6 communicates with the comprehensive management display terminal 8 and the positioning engine server 9 and sends distance information.

Both the positioning tag 1 and the positioning tag 2 with relays are UWB tags.

Between the positioning tag 1 with a relay and No. I base station 3, No. II base station 4, and No. III base station 5, between the said positioning tag 2 and No. I base station 3, No. II base station 4, and No. III base station 5 through ADS -TWR technology ranging.

The No. I base station 3 , the No. II base station 4 , and the No. III base station 5 are in a cellular expandable shape.

The comprehensive management display terminal 8 includes an electronic map interaction module 10 , an object event management module 11 , an event management module 12 , a warning area module 13 , and a playback module 14 .

The communication base station 6 communicates with the comprehensive management display terminal 8 and the positioning engine server 9 through the switch 7 or WI-FI.

UWB (Ultra Wideband) is a carrier-free communication technology, which uses pulse signals to transmit. UWB positioning achieves three-dimensional dynamic positioning of objects through small UWB tags attached to objects.

Positioning tag 1 with relay, positioning tag 2, base station Ⅰ 3, base station Ⅱ 4, and base station Ⅲ 5 are arranged in the area to be located to ensure that the area to be located is completely covered. Labels are configured by units to be located. Two-way communication between the UWB to be positioned and the base station. After the base station receives the signal, the positioning engine server uses ADS-TWR technology to measure the distance between the tag and each base station. Using the UWB communication function, each base station sends the distance information to the communication base station , and finally transmit the distance information to the server via WiFi for positioning and displaying.

The electronic map interaction module 10 is closely integrated with geographic information technology, and through an intuitive electronic map graphical display interface and rich and convenient human-computer interaction operations, it realizes functions such as query retrieval and statistical analysis based on spatial location.

The object event management module 11 realizes the complete storage of the system setting parameters in the system, the location data of the management objects, etc., and realizes scientific and effective management through organic data organization. On this basis, it can provide many different types of query and retrieval based on time, location and management objects.

According to the parameter settings in the system, the event management module 12 manages the types of alarm events such as the distance of the managed object and the warning area that occur during the monitoring process, and realizes functions such as event tracking and backtracking, query statistics, and the like. It also provides intelligent, convenient, and visual auxiliary management methods according to different types of events, such as priority and duration.

The warning area module 13 provides monitoring of the relative positional relationship between the management object and the designated area for the safety management of key areas. After specifying the warning area on the electronic map by means of human-computer interaction, the system can automatically monitor the event that the management object enters (or leaves) the specified area within the specified time period, and further alarms.

The playback module 14 quickly retrieves the historical database based on two dimensions of time and space, realizes scene playback based on electronic maps at any time in history, and intuitively obtains the spatial location distribution of management objects and historical alarm events within a specified time period.

An early warning method for a construction operation safety protection early warning system based on real-time positioning, comprising the following steps:

ⅰ. Obtain the spatial coordinate position and corresponding time value

The coordinate position and time value of each positioning tag 1 and positioning tag 2 with relays are acquired through ADS-TWR technology.

ⅱ. Calculate the distance between each equipment in the construction work area

Based on the information obtained in step i, the distance between the devices equipped with the positioning tag 1 and the device equipped with the positioning tag 2 is calculated.

ⅲ. Determine whether the warning threshold is exceeded

Compare the device distance calculated in step ii with the predetermined threshold, and make a judgment in combination with the monitoring interval, coordinate position, and time value.

ⅳ. Sound and light alarm

If the calculated distance in step Ⅲ exceeds the predetermined threshold, a buzzer is triggered to give an audible and visual alarm.

The monitoring interval is an accessible monitoring interval. If the number of positioning tags 1 and 2 with relays in the monitoring interval exceeds the number that can be accommodated, an alarm will be issued; if the positioning tags 1 and 2 with relays in the monitoring interval If the stay time exceeds the predetermined time, an alarm will be issued.

If the monitoring area is forbidden to enter the monitoring area, if the coordinate position passes through the monitoring area, an alarm will be issued.

The coordinate positions of the positioning tags 1 and 2 with relays can perform linkage control on the camera collection devices in the construction work area.

The early warning method also includes storage of coordinate positions, corresponding time values, and equipment distance values, and realizes real-time recording of personnel paths, trajectory records of any time period, query records of personnel movement trajectories, and preservation of statistical data of multi-person movement trajectories.

Among them, the real-time recording of personnel path means that in the positioning area, at any time and any position, the positioning base station can sense the signal and upload it to the positioning engine server. After analyzing and processing the positioning algorithm, various specific information (such as: personnel ID, location, specific time), and it can be dynamically displayed (in real time) on the large screen of the monitoring center and backed up on the computer terminal, so that the management personnel can know the status of the tunnel construction personnel at any time.

Trajectory recording at any time period means that once an emergency occurs in the positioning area, the person carrying the tag can send an alarm by pressing the positioning button on the positioning tag carried. At the same time, the dynamic display interface of the monitoring room will immediately trigger the alarm event and record it.

Personnel movement trajectory query record refers to viewing historical movement trajectory: when an emergency occurs, the wireless positioning system will retain the last activity position of the personnel, providing an important reference for accurate emergency search and rescue; use the wireless positioning handheld system to search and rescue on-site personnel.

Multi-person movement track statistical data storage means that daily personnel management managers can watch the tunnel construction personnel and equipment activities on the large screen or computer at any time, and can view the information status of any area, any team/part/person, and can make reports Printing (optional), historical data query (optional), bring great convenience to management.

The linkage control of the camera acquisition device refers to the visual display of the personnel's location information and surrounding environment information on the PC terminal in combination with the camera linkage technology. For the real-time activities of personnel on the production site, video surveillance is used to record and archive, and ultra-wideband positioning technology combined with video linkage technology to analyze, judge and find out whether someone has entered the safety restricted zone, so as to realize intelligent monitoring of important areas. Through these technologies, it is ensured that the on-site staff work at the designated time and designated workplace as required without straying into other areas, and that non-operating visitors visit the designated routes and areas without straying into safety restricted areas, and ensure inspections The team members can timely discover potential safety hazards on site to avoid accidents. The system realizes the alarm reminder function at the work site and the monitoring center. At the front end (work site), the sound and light alarm is used to remind the site personnel to pay attention to safety, and the alarm at the back end (monitoring center) actively reminds the monitoring personnel to pay attention to the safety status of the site.

Through the positioning system, the standardized management of on-site safety operations can be realized to further control the quality of on-site safety operations, improve work efficiency, ensure the safety and quality of on-site operations, and reduce the risks of on-site operations.

After the system receives the alarm signal, the alarm bell or sound and light alarm at the work site will automatically trigger the alarm message to prompt the on-site personnel to pay attention. The staff of the monitoring center can also prompt the on-site staff to pay attention to safety through the broadcast system.

As shown in Figure 3, taking welding construction as an example, the oxygen cylinder is equipped with a positioning label, the acetylene cylinder is equipped with a positioning label, and the electric welding torch is equipped with a positioning label with a relay. The honeycomb base station is equipped with the above two positioning labels , and the coordinate position and time value of the positioning tag with relays are collected, and the information is transmitted to the communication base station, and the communication base station transmits the above information to the integrated management display terminal and the positioning engine server.

The threshold is 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 torch is less than 10m, and the distance between the acetylene cylinder and the electric welding torch is less than 10m.

The effect is as follows:

a. During the welding process, once the distance between the operating point and dangerous objects such as oxygen cylinders and acetylene cylinders is less than 10m, an early warning will be given and the power will be cut off to force the operation to stop;

b. During the operation of oxygen cylinders and acetylene cylinders, once the storage distance is less than 5 meters, an immediate warning will be given to enable the on-site security personnel to locate and take measures in time to eliminate potential safety hazards.

The above is only a simple embodiment of the present invention.

In civil construction operations, networked real-time distance measurement and positioning can greatly improve the operation efficiency and comprehensive management level, such as the butt joint assembly of immersed tube tunnels, the butt joint of underground diaphragm wall reinforcement cages, and the welding operation field. Each equipment unit must meet the operation safety requirements. Workers in dangerous work areas such as tunnels under construction need to be located and tracked, and workers near existing lines need to be reminded and warned immediately.

Claims (10)

1. it is a kind of based on the construction operation security protection early warning system positioned in real time, including the tape relay at construction operation scene Position label（1）With positioning label（2）, it is characterised in that：The positioning label of the tape relay（1）Will be with No. I base station（3）、 No. II base station（4）, No. III base station（5）The distance between send to communication base station（6）, the positioning label（2）Will be with No. I base station （3）, No. II base station（4）, No. III base station（5）The distance between send to communication base station（6）, the communication base station（6）With synthesis Manage display terminal（8）, engine of positioning server（9）Communicate and send range information.

It is 2. according to claim 1 based on the construction operation security protection early warning system positioned in real time, it is characterised in that：Institute State the positioning label of tape relay（1）With positioning label（2）It is UWB labels.

It is 3. according to claim 2 based on the construction operation security protection early warning system positioned in real time, it is characterised in that：Institute State the positioning label of tape relay（1）With No. I base station（3）, No. II base station（4）, No. III base station（5）Between, the positioning label （2）With No. I base station（3）, No. II base station（4）, No. III base station（5）Between pass through ADS-TWR technology rangings.

It is 4. according to claim 3 based on the construction operation security protection early warning system positioned in real time, it is characterised in that：Institute State No. I base station（3）, No. II base station（4）, No. III base station（5）In the expansible shape of honeycomb.

It is 5. according to claim 4 based on the construction operation security protection early warning system positioned in real time, it is characterised in that：Institute State integrated management display terminal（8）Including electronic map interactive module（10）, object event management module（11）, incident management mould Block（12）, warning region module（13）, playback module（14）.

A kind of 6. pre- police based on the construction operation security protection early warning system positioned in real time according to claim 1 Method, it is characterised in that：Comprise the following steps：

（ⅰ）Obtain spatial coordinate location and corresponding time value

Pass through the positioning label of each tape relay of ADS-TWR technical limit spacings（1）, positioning label（2）Coordinate position with timely Between be worth；

（ⅱ）Calculate each equipment room distance in work zone

Pass through step（ⅰ）The information of middle acquisition, calculate the positioning label with tape relay（1）Equipment and with positioning label （2）Equipment room equipment distance two-by-two；

（ⅲ）Determine whether to exceed threshold value of warning

Pass through step（ⅱ）In the equipment distance that is calculated compared with predetermined threshold value, and combine monitoring section, coordinate Position, time value are judged;

（ⅳ）Carry out audible and visible alarm

If step（ⅲ）In calculating distance exceed predetermined threshold value, then trigger buzzer, progress sound and light alarm.

A kind of 7. pre- police based on the construction operation security protection early warning system positioned in real time according to claim 6 Method, it is characterised in that：The monitoring section is can enter monitoring section, if the positioning label of the tape relay in monitoring section （1）, positioning label（2）Quantity, which exceedes, can accommodate quantity, then sends alarm；If monitor the positioning mark of the tape relay in section Label（1）, positioning label（2）Residence time exceed the scheduled time, then send alarm.

A kind of 8. pre- police based on the construction operation security protection early warning system positioned in real time according to claim 6 Method, it is characterised in that：If monitoring section is is prohibited from entering monitoring section, if coordinate position is sent through monitoring section Alarm.

A kind of 9. pre- police based on the construction operation security protection early warning system positioned in real time according to claim 6 Method, it is characterised in that：The positioning label of each tape relay（1）, positioning label（2）Coordinate position can to construction make The shooting harvester in industry area carries out coordinated signals.

A kind of 10. pre- police based on the construction operation security protection early warning system positioned in real time according to claim 6 Method, it is characterised in that：The method for early warning also includes the storage to coordinate position, corresponding time value, equipment distance value, realizes people Member path is recorded in real time, random time section track record, personnel motion trail inquiry record, more people's movement locus statistics are protected Deposit.