KR101144085B1 - Apparatus for safting tunnel usging rtls - Google Patents

Abstract

There is disclosed a tunnel safety device using a real-time location tracking system to further enhance safety against an accident occurring during operation in a tunnel. The present invention relates to a wireless communication system, comprising: a transmitter for transmitting an RF response signal in response to a query signal of a predetermined frequency band; a transmitter for receiving an RF response signal of the transmitter, Wherein the transmission unit transmits unique identification information to the RF signal in the form of a reflection-modulated radio wave with respect to an RF query signal of a predetermined frequency band radiated in response to a query signal of the radiated frequency band, Response signal. According to the present invention, since the position of an operator in a tunnel is accurately grasped by using a real-time position tracking system that grasps the position of an operator and provides positional information of an operator along with map information of the grasped moving area, Through the certification process, it is possible to clearly control the unauthorized worker's access control and to accurately monitor the worker's work situation such as the number of workers in the tunnel and the emergency situation of the worker, thereby minimizing worker's safety accidents And it is also possible to quickly deal with the emergency situation of the operator.

Tunnel, safety, work, monitoring, location tracking, RTLS

Description

[0001] APPARATUS FOR SAFTING TUNNEL USING RTLS [0002]

The present invention relates to a method of securing safety in a tunnel, and more particularly, to a method of securing a safety of a tunnel in order to further improve the stability of an operator in a tunnel based on position information of an operator using a real- ≪ / RTI >

Nowadays, as the activity area of people is gradually enlarged, there is a tunnel construction that can pass straight through the middle of the mountain so that the river or the sea can pass by using the car instead of the boat It is proceeding.

Most of the tunnels constructed through such subsurface or topography are excavated using blasting. In tunnel excavation using such blasting, a plurality of holes are drilled at predetermined intervals and depths, It is a very dangerous process in which the explosive is exploded and excavated to a certain depth.

Therefore, access control to unauthorized workers in such a dangerous workplace was conducted by the manager's search of the yuan.

Recently, access control to unauthorized workers has been severely restricted by using RFID to carry out the authentication procedure of the worker.

However, since it is impossible to grasp the remaining personnel of the worker in the tunnel during the blasting, the worker who has not received the notice of the blasting work has a problem that the worker is exposed to the risk and a safety accident occurs.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a real-time location tracking system, which is an application technology for analyzing a position of a worker, The safety of the operator in the tunnel is further improved by detecting the position information of the operator in the tunnel, detecting the movement of the operator based on the detected position information of the operator, and determining the safety state of the operator based on the detected movement of the operator And to provide a tunnel safety device that can be used in a tunnel.

According to an aspect of the present invention,

A tunnel safety device using a real-time location tracking system for detecting a movement position of an operator and providing position information of a moving body together with map information of the detected movement zone,

A transmitter for transmitting an RF response signal in response to a query signal of a predetermined frequency band;

And a reception unit receiving the RF response signal of the transmission apparatus and determining the safety of the operator in the tunnel and the work situation of the operator based on the position information of the operator in the tunnel,

The transmitter may further comprise:

And transmits the RF response signal in the form of a reflection-modulated wave to an RF query signal of a predetermined frequency band radiated in response to a query signal of the predetermined frequency band radiated.

The RF response signal of the transmitting unit includes:

A unique identification number previously stored in the transmitter, and reception time information of an RF inquiry signal.

In addition,

A reception interface for demodulating the RF response signal supplied from the transmitter and outputting movement distance information of the operator,

An authentication server for performing an authentication procedure through identification information and worker information received from the receiving interface;

A real-time location tracking server for calculating location information of the operator based on the information on the movement distance of the radio waves between the transmitter and the interface;

And a history management server for managing the job history information in the tunnel,

The receiving interface

And a communication protocol of IEEE 802.15.4a for communication with the transmitter.

Here, the real-

A collection gateway for transmitting the radio wave travel distance information collected through the communication between the transmitter and the interface to a real time location tracking engine;

A location tracking engine for calculating position coordinates through the travel distance information received from the collection gateway;

And a map data generation unit for generating and updating map information for displaying coordinates of the operator calculated by the position tracking engine,

Wherein the receiving interface comprises:

The method includes detecting a propagation time between the transmitting unit and the receiving interface on the basis of the receiving time information of the transmitting unit transmitted through the concatenated spread spectrum method and transmitting the propagation time information detected by the Symmetric Double Sided Two Way Ranging (SDS-TWR) And calculates movement distance information of the worker on the basis of the movement distance information.

The location tracking engine,

And detects the position information of the transmitting unit by using a triangulation method based on the radius (R1, R2, R3) of the traveling distance information calculated by the Symmetric Double Sided Two Way Ranging (SDS-TWR) do.

The history management server,

And collects and stores the work log, the accident history, and the accident process status information of each worker.

The apparatus comprises:

Further comprising a control unit for determining a safety state of an operator based on position information of an operator,

The apparatus comprises:

Further comprising a display unit for displaying positional information of an operator authenticated through the authentication server and safety status information of the control unit on a map generated by the map data generation unit,

 The apparatus comprises:

And a warning unit for notifying the safety status warning message of the operator to at least one of a warning sound and a warning light based on the safety status information of the control unit.

In addition,

The location information of the real-time location tracking server of the operator authenticated through the authentication server and the safety status information of the control unit are transmitted to the manager terminal and one or more of the authorized administrators via the communication network together with the map data generated by the map data generator And a transmission interface for transmitting the transmission interface.

According to another aspect of the present invention,

At least one transmitting unit for transmitting an RF response signal in response to a query signal of a predetermined frequency band,

An interface receiver for receiving and demodulating the RF response signal and calculating movement distance information of the operator;

An authentication server for performing an authentication procedure through identification information of a transmission unit and preset worker information received through the reception unit;

A real-time location tracking server for calculating location information of an operator based on radio wave movement information between the transmitter and the receiver,

And a history management server for managing the job history information in the tunnel.

According to the present invention, since the position of an operator in a tunnel is accurately grasped by using a real-time position tracking system that grasps the position of an operator and provides positional information of an operator along with map information of the grasped moving area, Through the certification process, it is possible to clearly control the unauthorized worker's access control and to accurately monitor the worker's work situation such as the number of workers in the tunnel and the emergency situation of the worker, thereby minimizing worker's safety accidents And it is also possible to obtain an effect of promptly responding to the emergency situation of the worker.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings.

Here, the real-time location tracking system generally includes UWB, WI-FI, Zigbee, BlueTooth, Active tag, ultrasonic wave, NFER, Super RFID, etc. In the embodiment of the present invention, Zigbee's local area network is used.

FIG. 1 is a diagram showing the construction of a tunnel safety apparatus using a real-time position tracking system according to the present invention. As shown in FIG. 1, a tunnel safety apparatus using a real- The apparatus includes at least one transmitting unit 10, a receiving unit 30, a display unit 50, and a warning unit 70, .

Here, the transmitter 10 is configured to transmit the unique identification information in the RF response signal in the form of a reflection-modulated radio wave to an RF query signal of a predetermined frequency band emitted in response to the query signal of the predetermined frequency band emitted The receiver 30 receives the RF response signal of the transmitter 10 and determines the safety of the operator in the tunnel and the position information of the operator based on the position information of the operator in the tunnel.

Here, the RF response signal is the identification number of each transmitter 10 and the propagation time information between the transmitter 10 and the receiver 30.

The receiving unit 30 includes a receiving interface 31 for demodulating the RF response signal supplied from the transmitting unit 10 and then calculating traveling distance information of the operator, An authentication server 33 for performing an authentication procedure through information and worker information and a real time location tracking server 35 for receiving the radio wave movement information between the transmitting unit 10 and the receiving interface 31 and calculating position information of the worker And a history management server 37 for managing the job history information in the tunnel.

Here, the receiving interface 31 uses a communication protocol of IEEE 802.15.4a.

2, the real-time location tracking server 35 includes a collection gateway (not shown) for transmitting the collected radio wave distance information through communication between the at least one transmitter 10 and the receiving interface 31, A position tracking engine 35b for calculating a position of the worker through the movement distance information received from the collection gateway 35a and a position tracking engine 35b for displaying the position of the worker calculated by the position tracking engine 35b And a map data generating unit 35c for generating and updating map information for the map data.

In order to further improve the precision and accuracy with respect to the position information of the operator, the position tracking engine 35b may calculate the angle of arrival (AoA), the time of arrival (ToA), the time difference of arrival (TDoA) ), Time of Flight (ToF), Symmetric Double Sided Two Way Ranging (SDS-TWR), Near Field Electromagnetic Ranging (NFER) and Super RFID, wherein each location tracking engine And the detailed description thereof will be omitted.

However, in the embodiment of the present invention, as shown in FIG. 3, the receiving interface 31 receives the reflected modulated RF response signal of the transmitter 10 received in a chirp spread spectrum (CSS) The radio wave movement time between the transmitter 10 and the reception interface 31 is detected and the movement distance information of the operator is calculated by the Symmetric Double Sided Two Way Ranging (SDS-TWR) method based on the detected radio wave movement time To the real time location tracking engine 35b through the collection gateway 35a and the real time location tracking engine 35b is provided to calculate the position information of the worker by using the trip distance information of the worker in a triangulation manner. 5, using the radii (R1, R2, R3) set by the Symmetric Double Sided Two Way Ranging (SDS-TWR) method and the triangulation method as shown in FIG. The position coordinates of the transmitter 10 are calculated and displayed together with the map of the map generator 35c.

The process of calculating the position coordinates of the transmitter 10 using the radiuses R1, R2, and R3 of the movement distance information set by the Symmetric Double Sided Two Way Ranging (SDS-TWR) method and the triangulation method is also well known The detailed description thereof will be omitted.

Meanwhile, the history management server is configured to collect the work log, the accident history, and the accident process status information of each worker and store the collected information in the corresponding database area.

The apparatus further includes a control unit 39 for determining a safety state of the operator based on the positional information of the operator. The apparatus includes position information of an operator authenticated through the authentication server, And a display unit (50) for displaying status information on a map generated by the map data generation unit (35c).

The apparatus further includes a warning unit 70 for notifying the safety state warning message of the operator to at least one of a warning sound and a warning light based on the safety state information of the control unit 39.

The apparatus also transmits the position information of the real-time position tracking server 35 of the operator authenticated through the authentication server 33 and the safety status information of the control unit 39 to the communication network together with the map data generated by the map data generating unit And a transmission interface 41 for transmitting to at least one of the administrator terminal and the corresponding organization through the predetermined administrator terminal.

According to this configuration, the transmitter 10 transmits the RF response signal for the radiated RF query signal in the form of a reflection-modulated wave. Here, the RF response signal includes a radio wave reception time for the RF query signal of the transmitter 10 and identification information for the transmitter 10.

The reflection-modulated RF response signal is received through the reception interface 31 of the receiver 30, and the identification number included in the received RF response signal is provided to the authentication server 33.

Here, the authentication server 33 executes an authentication procedure through the received identification number and predetermined worker information. If the unauthorized worker is the unauthorized worker, the warning unit 70 provides a warning message to the warning unit 70, and the warning unit 70 provides a warning message for controlling access to the unauthorized worker, Lt; / RTI >

Access to the unauthorized worker in the tunnel is strictly restricted by the administrator.

On the other hand, the radio wave reception time of the transmitter 10 received through the reception interface 31 is calculated by calculating the propagation time using the coexistence spread spectrum (CSS) method and the calculated propagation time using the Symmetric Double Sided Two Way Ranging (R2, R3) of the moving distance information of the worker in the SDS-TWR method.

The movement distance information of the operator calculated through the reception interface 31 is transmitted to the real time position tracking engine 35b through the acquisition gateway 35a of the position tracking server 35. [

Then, the location tracking engine 35b of the location server 35 calculates a triangulation method based on radii R1, R2, and R3, which are movement distance information of the worker set in the Symmetric Double Sided Two Way Ranging (SDS-TWR) The position information of the transmitter 10 is detected.

The position information of the transmitter 10 detected by the position tracking server 35 is displayed in the position coordinate form (X, Y) on the map in the moving area generated by the map data generator 35c.

The position tracking in the embodiment of the present invention detects the propagation time between the transmitter 10 and the receiver 30 through the CSS method and detects the radius from the propagation time by the Symmetric Double Sided Two Way Ranging (SDS-TWR) (AoA), Time of Arrival (ToA), Time Difference of Arrival (TDoA), and Time of Arrival (TDoA) are detected by using the triangulation method The position information can be detected by various methods such as Signal Strength (RSS), Time of Flight (ToF), Symmetric Double Sided Two Way Ranging (SDS-TWR), Near Field Electromagnetic Ranging (NFER)

On the other hand, the location information of the transmission unit 10, which is displayed in the form of position coordinates on the map in the moving area, is provided to the history management server 37, and the history management server 37 manages the work log, And stores the collected history management information in the corresponding database area.

The history management information of the history management server 37 and the position information of the transmission unit 10 indicated in the form of coordinates in the map in the moving area are provided to the display unit 50. The display unit 50 displays the history management information of the worker Location information and history management information of the worker are displayed. That is, the work status of the operator in the tunnel is monitored through the display unit 50.

The controller 39 senses the movement of the worker based on the coordinates of the worker (mobile), and generates the safety state information of the worker based on the movement of the worker. That is, when the movement of the worker is not detected for a predetermined time or when an emergency call is made by the worker, it is determined that a problem has occurred in safety of the worker, and safety state information is generated through the controller 39.

The safety status information is provided to the warning unit 70 and the warning unit 70 generates a safety warning message of the operator to the administrator in one or more of voice and time.

On the other hand, the positional information of the operator and / or the safety status information indicated by the position coordinates on the map are transmitted to the terminals of the corresponding manager and the corresponding institutions (police station and emergency center) etc. through the transmission interface 41. That is, the safety problem of the operator is quickly processed.

That is, since the position of the worker in the tunnel is precisely detected by using the real-time location tracking system which grasps the position of the worker and provides the positional information of the worker together with the map information of the identified moving area, It is possible to precisely control the unauthorized worker's access control and to precisely monitor the work situation of the worker such as the number of workers in the tunnel and the emergency situation of the worker, In addition, it becomes possible to promptly deal with the emergency situation of the operator.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is, therefore, to be understood that the above-described embodiments are illustrative in all respects and not as restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention .

FIG. 1 is a view showing the construction of a tunnel safety device using a real-time location tracking system according to an embodiment of the present invention.

FIG. 2 is a detailed view of the configuration of the location tracking server of FIG. 1;

FIG. 3 is a diagram showing an output signal of a collection gateway of the location tracking server of FIG. 2;

4 is a diagram showing an output signal of the position tracking engine of the position tracking server of FIG.

FIG. 5 is a view showing position information of an operator by the position tracking engine of FIG. 2. FIG.

 Description of the Related Art [0002]

10:

30: Receiver

31: Receiving Interface

33: Certification West

35: Location Tracking Server

35a: Collection Gateway

35b: Positioning engine

35c: map data generation unit

37: History management server

39:

41: transmission interface

50:

70: Warning section

Claims (13)

A transmitter for transmitting an RF response signal in response to a query signal of a predetermined frequency band; And a reception unit receiving the RF response signal of the transmission apparatus and determining the safety of the operator in the tunnel and the work situation of the operator based on the position information of the operator in the tunnel, The transmitter may further comprise: And to transmit the RF response signal in the form of a reflection-modulated wave form to an RF inquiry signal of a predetermined frequency band radiated in response to the RF inquiry signal of the predetermined frequency band radiated The RF response signal of the transmitting unit includes: A unique identification number previously stored in the transmission unit, and reception time information of a query signal. delete The apparatus of claim 1, A reception interface for demodulating the RF response signal supplied from the transmitter and outputting movement distance information of the operator, An authentication server for performing an authentication procedure through identification information and worker information received from the receiving interface; A real-time location tracking server for calculating location information of the operator based on the information on the movement distance of the radio waves between the transmitter and the interface; And a history management server for managing the operation history information in the tunnel. 4. The system according to claim 3, And a communication protocol of IEEE 802.15.4a for communication with the transmitter. The system according to claim 3, wherein the real- A collection gateway for transmitting the radio wave travel distance information collected through the communication between the transmitter and the interface to a real time location tracking engine; A location tracking engine for calculating location information through the travel distance information received from the collection gateway; And a map data generator for generating and updating map information for displaying the position information of the operator calculated through the position tracking engine in a coordinate form. The system according to claim 5, The method includes detecting a propagation time between the transmitting unit and the receiving interface on the basis of the receiving time information of the transmitting unit transmitted through the concatenated spread spectrum method and transmitting the propagation time information detected by the Symmetric Double Sided Two Way Ranging (SDS-TWR) And calculates the travel distance information of the operator on the basis of the calculated distance information. The system according to claim 6, And detects the position information of the transmitter using a triangulation method based on the radius (R1, R2, R3) of the propagation distance information calculated by the Symmetric Double Sided Two Way Ranging (SDS-TWR) Tunnel safety device using real - time location tracking system. The history management server according to claim 3, And collecting and storing the work log, the accident history, and the accident process status information of each worker. 4. The apparatus of claim 3, And a control unit for determining a safety state of an operator based on the position information of the operator. The apparatus of claim 9, Further comprising a display unit for displaying positional information of an operator authenticated through the authentication server and safety status information of the control unit on a map generated by the map data generation unit. The apparatus of claim 9, Further comprising a warning unit for notifying a safety state warning message of the operator to at least one of a warning sound and a warning light based on safety state information of the control unit. The device of claim 9, The location information of the real-time location tracking server of the operator authenticated through the authentication server and the safety status information of the controller are transmitted to at least one of the administrator terminal and the corresponding organization via the communication network together with the map data generated by the map data generating unit And a transmission interface for transmitting the transmission signal to the base station. At least one transmitting unit for transmitting an RF response signal in response to a query signal of a predetermined frequency band, An interface receiver for receiving and demodulating the RF response signal and calculating movement distance information of the operator; An authentication server for performing an authentication procedure through identification information of a transmission unit and preset worker information received through the reception unit; A real time location tracking server for calculating location information of an operator on the basis of the propagation distance information between the transmitter and the receiver, And a history management server for managing the operation history information in the tunnel.

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