JP4540484B2 - Tunnel operation management system in tunnel - Google Patents

Description

  The present invention relates to a bogie operation management system in a tunnel, and more particularly, to a bogie operation management system in a tunnel for monitoring the operation position of a bogie that transports segments and earth and sand in shield construction.

  Generally, when a tunnel is constructed using a shield machine, a track is provided from the vertical shaft to the shield machine position, and a truck is moved along the track, thereby transporting segments, materials, excavated sediment, work personnel, etc. Like to do.

  In order to secure safety against the movement of the carriage in such a narrow premises, it is necessary to manage the operation of the carriage in the tunnel.

  Therefore, a vehicle movement central monitoring control system as shown in Patent Document 1 has been proposed.

This vehicle movement central monitoring and control system lays an ID tag with a built-in battery using a microwave (2 to 3 GHz) band in a tunnel so that position information and traveling information are not received from each ID tag while the carriage is traveling. The information is acquired sequentially in contact, and the position information obtained from these ID tags is transmitted from the carriage to the fixed radio station together with the traveling speed information of the carriage, and is transmitted from the fixed radio station to the position monitoring system with priority.
JP-A-6-149368

  In such a vehicle movement central monitoring and control system, since a relatively expensive ID tag that requires a battery is used, maintenance of the battery is required. It is difficult to provide a large number of expensive ID tags with a narrow interval, and it is difficult to obtain detailed position information.

  In addition, the position monitor system is expensive, and it is difficult to place a large number in the mine, and it is difficult to confirm the traveling information of the trolley for the mine workers away from the position monitor, ensuring sufficient safety. It is hard to be done.

  An object of the present invention is to provide a bogie operation management system in a tunnel in which position information of a bogie can be obtained in an inexpensive and detailed manner, and can be reliably transmitted to a mine worker away from a position monitor. There is to do.

In order to achieve the above object, a bogie operation management system in a tunnel according to the present invention includes a bogie traveling on a track in a tunnel,
A plurality of IC tags having electrical position information therein and disposed in the tunnel at predetermined intervals along the track;
An IC tag detection device mounted on the carriage for detecting position information of the IC tag;
A plurality of fixed radio devices arranged in the tunnel at predetermined intervals along the trajectory;
A mobile radio device that is mounted on the carriage and transmits position information detected by the IC tag detection device to the fixed radio device;
A central control room control CPU connected to each of the fixed wireless devices via the first wired transmission means;
A plurality of position display devices arranged at predetermined positions in the tunnel and connected to the control CPU via second wired transmission means;
In-tunnel bogie operation management system including
The non-contact type IC tag that generates an electromotive force by an electromagnetic field transmitted from the IC tag detection device and transmits a radio wave signal; and
A mobile communication terminal control CPU connected to the first wired transmission means and the control CPU and wirelessly transmitting the position information of the carriage from the fixed wireless device via the first wired transmission means;
A mobile communication terminal capable of receiving position information of the carriage from the mobile terminal control CPU from the fixed wireless device and transmitting it to an operator in the tunnel;
It is characterized by including.

  According to the present invention, the position information is obtained by using a relatively inexpensive non-contact passive type that generates an electromotive force by an electromagnetic field transmitted from an IC tag detection device and transmits a radio wave signal. It is possible to arrange a plurality of IC tags having a narrow interval, and it is possible to reliably acquire detailed position information.

  Further, by transmitting the detailed position information acquired from the IC tag to the mobile communication terminal possessed by the worker in the tunnel using the mobile communication terminal control CPU, it is possible for the worker at a position away from the position display device. Also, the position information of the carriage can be reliably transmitted, and sufficient safety can be ensured.

  In the present invention, a mine oxygen concentration measuring device is mounted on the carriage, the oxygen concentration in the tunnel is measured, and the measurement result is transmitted from the mobile wireless device to the control CPU via the fixed wireless device, It can be displayed on the position display device.

  By setting it as such a structure, the oxygen concentration in a mine can be continuously measured with a mine oxygen concentration measuring apparatus, and it can inform a worker in a mine and contribute to safety management.

  In the present invention, two IC tag detection devices are mounted along the movement direction of the carriage, and the traveling direction of the carriage is detected based on which IC tag detection apparatus detects the IC tag first. Can do.

  By setting it as such a structure, the advancing direction of a trolley | bogie can be detected in the IC tag detection state of an IC tag detection apparatus, and the operation | movement management of the trolley | bogie which managed the advancing direction in addition to position information can be performed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1-5 is a figure which shows the bogie operation management system in a tunnel which concerns on one embodiment of this invention.

  FIG. 1 is a longitudinal sectional view along the axial direction of the tunnel showing an outline of the bogie operation management system in the tunnel, and FIG. 2 is a longitudinal sectional view in a direction intersecting with the axial direction of the tunnel.

  As shown in FIG. 1, this tunnel 10 is constructed using a shield machine 12, a shaft 16 having a predetermined depth is excavated from the ground 14, and the shield machine 12 is carried into the shaft 16. The tunnel 10 is constructed while excavating the ground from the bottom of the vertical shaft 16.

  The shield machine 12 is connected to a shield machine driving carriage 11, a succeeding carriage 13, and the like.

  As the tunnel 10 is dug, it is necessary to transport segments, materials, excavated earth, work personnel, and the like.

  Therefore, a track 18 is laid on the bottom of the tunnel 10 from the vertical shaft 16 position to the shield machine 12 position, and a carriage 20 such as a battery locomotive is driven along the track 18 to carry the vehicle. .

  In the tunnel 10, as shown in FIG. 2, a evacuation place 15 for evacuating an operator or the like when the carriage 20 passes is provided at a predetermined place.

  The operation status of the carriage 20 is managed by a carriage operation management system in the tunnel.

  This bogie operation management system in the tunnel includes a bogie 20, an IC tag 22, an IC tag detection device 24, a fixed radio device 26, a mobile radio device 28, a control CPU 30, a position display device 32, and mobile communication. A terminal control CPU 34 and a mobile communication terminal 36 are provided.

  The IC tag 22 is a non-contact and relatively inexpensive passive type that generates an electromotive force by an electromagnetic field oscillated from the IC tag detection device 24 and oscillates a radio signal.

  Further, the IC tag 22 has electrical position information inside, and a plurality of IC tags 22 are arranged in the tunnel 10 along the track 18 at a predetermined interval.

  For example, read-only or read / write IC tags 22 having a frequency of 134.2 KHz and a maximum reading distance of about 1.2 m are installed at intervals of about 25 m.

  The IC tag detection device 24 is mounted on the carriage 20 and detects the position information of the IC tag 22, and has an IC tag detection device main body 24a and a detection antenna 24b as shown in the sectional view of FIG. Then, by oscillating an electromagnetic field from the detection antenna 24b toward the IC tag 22 to generate an electromotive force in the IC tag 22, the IC tag 22 oscillates and receives the radio signal. Yes.

  The separation distance between the IC tag detection device 24 and the IC tag 22 is set to about 20 to 30 cm.

  Two IC tag detection devices 24 are mounted along the moving direction of the carriage 20, and the traveling direction of the carriage 20 is detected depending on which IC tag detection device 24 detects the IC tag 22 first. Can be done.

  The fixed wireless device 26 has a HUB 37 and an antenna 39, and is arranged in the tunnel 10 at predetermined intervals along the track 18 to receive wireless information from the mobile wireless device 28 and to the mobile communication terminal 36. Wireless information can be transmitted.

  The installation interval of the fixed wireless device 26 is, for example, about 300 m.

  The mobile wireless device 28 is mounted on the carriage 20 and can transmit the position information of the IC tag 22 detected by the IC tag detection device 24 to the fixed wireless device 26 via the wireless LAN antenna 50.

  The control CPU 30 is installed in the central control room 38 on the ground, is connected to the HUB 37 of each fixed wireless device 26 via the first wired transmission means 40 using, for example, an optical cable, and is connected to the mobile wireless device 28. In this state, a wireless LAN is constructed.

  The position display device 32 includes a master unit 32 a arranged in the shaft 16 and a predetermined position in the tunnel 10, for example, the shield machine driving cart 11 and the tunnel 10 wall surface between the master unit 32 a and the shield machine driving cart 11. A plurality of slave units 32b are arranged, and the master unit 32a and the slave units 32b are connected to the control CPU 30 via the second wired transmission means 42, respectively.

  The second wired transmission means 42 includes a wired LAN 42a extending from the control CPU 30 to the parent device 32a, and a communication line 42b connecting the parent device 32a and each child device 32b. The wired LAN 42a and the first wired transmission means. 40 is connected via the HUB 43.

  In addition, the current position, the traveling direction, the estimated arrival time, etc. transmitted from the control CPU 30 are displayed on the parent device 32a and the child device 32b.

  The mobile communication terminal control CPU 34 is connected to the control CPU 30 via the first wired transmission means 40 and the wired LAN 42a, and wirelessly transmits the position information of the carriage 20 from the fixed wireless device 26 via the first wired transmission means 40. It is supposed to be.

  The mobile communication terminal 36 is configured to receive position information of the carriage 20 from the mobile communication terminal control CPU 34 from the fixed wireless device 26 and transmit it to the worker 44 in the tunnel 10 by PHS or the like, for example.

  FIG. 3 shows a connection state of the IC tag detection device 24 mounted on the carriage 20.

  As shown in FIG. 3, the IC tag detection device main body 24 a connected to the detection antenna 24 b is connected to a wireless LAN notebook computer 46 on the mobile wireless device 28 side, and this wireless LAN notebook computer 46 is connected via an RS422 converter 48. The wireless LAN antenna 50 is connected.

  Wireless information is exchanged between the wireless LAN antenna 50 and the antenna 39 of the fixed wireless device 26.

  FIG. 4 shows a connection state of the parent device 32a in the position display device 32.

  As shown in FIG. 4, a liquid crystal display 54 is connected to a personal computer 52 connected to a wired LAN 42a that is the second wired transmission means 42 on the control CPU 30 side.

  Further, an RS422 converter 58 is connected to the personal computer 52 via an RS232C56, and the slave unit which is the position display device 32 on the face side is connected from the RS422 converter 58 to the communication line 42b of the second wired transmission means 42. 32b.

  FIG. 5 shows a connection state of the slave unit 32b in the position display device 32.

  As shown in FIG. 5, a personal computer 62 is connected via a communication line 42 b on the shaft 16 side and an RS422 converter 60, and a liquid crystal display 64 is connected to the personal computer 62.

  Further, an RS422 converter 68 is connected to the personal computer 62 via an RS232C66, and the RS422 converter 68 is connected to the slave unit 32b which is the position display device 32 on the face side through the communication line 42b. It has become.

  Thus, the position information can be obtained by using a relatively inexpensive non-contact passive type that generates an electromotive force by an electromagnetic field transmitted from the IC tag detection device 24 and transmits a radio wave signal. Thus, it is possible to arrange a large number of IC tags having a narrow interval, and it is possible to reliably acquire detailed position information.

  Further, by transmitting the detailed position information acquired from the IC tag 22 to the mobile communication terminal 36 possessed by the worker in the tunnel 10 using the mobile communication terminal control CPU 34, the position information is separated from the position display device 32. The position information of the carriage 20 can be reliably transmitted to the worker 44 who is present, and sufficient safety can be ensured.

  Further, in the present embodiment, as shown in FIGS. 1 and 2, the mine oxygen concentration measuring device 70 is mounted on the carriage 20, the oxygen concentration in the tunnel 10 is continuously measured, and the measurement result is transferred to the mobile radio. The data is transmitted from the device 28 to the control CPU 30 via the fixed wireless device 26 and displayed on the position display device 32.

  By doing in this way, the oxygen concentration in the tunnel 10 is always grasped in real time, and it can inform the worker 44 etc. in a mine and contribute to safety management.

  In addition, a patrol light 72 is installed in each position display device 32 and the cart 20, and when the cart 20 approaches, the patrol light 72 of the position display device 32 at that position is rotated to notify the cart 20 and the operator 44 is also notified to the cart 20. When the vehicle approaches, the patrol light 72 of the carriage 20 is rotated to alert the driver of the carriage 20.

  Furthermore, when the cart 20 has, for example, two trains, it is possible to perform waiting management of intersections in the mine by notifying the driver of the cart by the mobile communication terminal.

  The present invention is not limited to the above-described embodiment, and can be modified into various forms within the scope of the gist of the present invention.

  For example, the installation interval of the IC tag is not limited to the above embodiment, and can be variously changed according to the distance of the tunnel.

  Further, the number of position display devices can be variously changed according to the distance of the tunnel.

It is a longitudinal cross-sectional view along the axial direction of a tunnel which shows the outline of the trolley | bogie operation management system in a tunnel. It is a longitudinal cross-sectional view of the axial direction and the crossing direction of the tunnel of FIG. It is explanatory drawing which shows the connection state of the IC tag detection apparatus mounted in the trolley | bogie. It is explanatory drawing which shows the connection state of the main | base station among position display apparatuses. It is explanatory drawing which shows the connection state of a subunit | mobile_unit among position display apparatuses.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tunnel 12 Shield machine 18 Track 20 Carriage 22 IC tag 24 IC tag detection apparatus 26 Fixed radio | wireless apparatus 28 Mobile radio | wireless apparatus 30 CPU for control
32 position display device 34 mobile communication terminal control CPU
36 mobile communication terminal 38 central control room 40 first wired transmission means 42 second wired transmission means 70 underground oxygen concentration measuring device

Claims (3)

A dolly traveling on a track in the tunnel;
A plurality of IC tags having electrical position information therein and disposed in the tunnel at predetermined intervals along the track;
An IC tag detection device mounted on the carriage for detecting position information of the IC tag;
A plurality of fixed radio devices arranged in the tunnel at predetermined intervals along the trajectory;
A mobile radio device that is mounted on the carriage and transmits position information detected by the IC tag detection device to the fixed radio device;
A central control room control CPU connected to each of the fixed wireless devices via the first wired transmission means;
A plurality of position display devices arranged at predetermined positions in the tunnel and connected to the control CPU via second wired transmission means;
In-tunnel bogie operation management system including
The non-contact type IC tag that generates an electromotive force by an electromagnetic field transmitted from the IC tag detection device and transmits a radio wave signal; and
A mobile communication terminal control CPU connected to the first wired transmission means and the control CPU and wirelessly transmitting the position information of the carriage from the fixed wireless device via the first wired transmission means;
A mobile communication terminal capable of receiving position information of the carriage from the mobile terminal control CPU from the fixed wireless device and transmitting it to an operator in the tunnel;
In-tunnel bogie operation management system characterized by including: In claim 1,
A mine oxygen concentration measuring device is mounted on the carriage, the oxygen concentration in the tunnel is measured, and the measurement result is transmitted from the mobile radio device to the control CPU via the fixed radio device and displayed on the position display device. A truck operation management system in the tunnel. In claim 1 or 2,
Two IC tag detection devices are mounted along the direction of movement of the carriage, and the traveling direction of the carriage is detected by which IC tag detection device detects the IC tag first. Inner cart operation management system.

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