Early warning method for safe operation of rail transportation in tunnel under construction

Abstract

The invention discloses an early warning method for safe operation of rail transportation in a tunnel under construction. The early warning method comprises the following steps that 1, communication cables are laid on the side wall of one side in a tunnel hole under construction in the direction of the tunnel; 2, arranging an obstacle detection device, a vehicle-mounted control terminal and a vehicle-mounted base station on the rail transportation marshalling; a plurality of turnout controllers and turnouts are arranged at the positions, where rail changing is needed, of the rails in the tunnel. Speed limit identifiers are arranged in the tunnel; a track card reader and a track identification card are arranged on the track; a constructor wears a personnel identification card, and a rail transport locomotive identification card is arranged on the rail transport locomotive; a rail transport vehicle identification card is arranged on the rail transport vehicle; and step 3, when the two rows of rail transportation marshals on the same rail approach each other, the control platform forms early warning information through the positioning information of the two rows of rail transportation marshals. By the adoption of the early warning method, the tunnel environment information in front of operation can be obtained through rail transportation, and safety early warning information is sent out.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel engineering information technology, and specifically relates to a method for early warning of safe operation of rail transportation in a tunnel under construction. Background Art

[0002] Some mountain tunnels, urban rail transit tunnels and other tunnels are constructed using TBM / shield method, and rail transportation is used to complete the feeding and slag discharge operations. There are many simultaneous construction processes in the tunnel, and the construction personnel, vehicles, equipment and materials of each process are frequently moving. Usually, multiple rail transportation groups are required to work continuously. The traffic is frequent and tight. It is difficult to advance the exploration of the tunnel operation environment information ahead by manually following the vehicle to direct the operation of the vehicle, and the construction safety risk is relatively high. In order to meet the current development needs of safe, efficient and intelligent construction of tunnels, a method is needed to warn the tunnel environment information ahead of the rail transportation operation in an unmanned state. Summary of the invention

[0003] The purpose of the present invention is to provide a method for early warning of safe operation of rail transport in a tunnel under construction, which can enable the rail transport to obtain tunnel environment information ahead of operation and issue safety early warning information.

[0004] The present invention adopts the following technical solution: a method for early warning of safe operation of rail transportation in a tunnel under construction, comprising the following:

[0005] Step 1: Lay a communication cable on one side wall of the tunnel under construction and along the direction of the tunnel, and connect the end of the communication cable to the control platform set outside the tunnel; set multiple tunnel communication base stations in the tunnel section and along the communication cable intervals; set multiple tracks in the tunnel under construction;

[0006] Step 2: An obstacle detection device, an onboard control terminal and an onboard base station are installed on the rail transport marshaling; multiple switch controllers and switches are installed at the positions where track changes are required on the track in the tunnel; speed limit signs are installed in the tunnel; track card readers and track identification cards are installed on the track; construction personnel wear personnel identification cards, and rail transport locomotives are equipped with rail transport locomotive identification cards; rail transport vehicles are equipped with rail transport vehicle identification cards; and it is determined whether there is a fault;

[0007] Step 3: When two rail transport trains on the same track approach each other, the control platform determines the distance between the two rail transport trains through the positioning information of the two rail transport trains. When it is less than the safe distance, the control platform generates an early warning message and transmits it to the on-board control terminal through communication cables, tunnel communication base stations and on-board base stations to complete the early warning and reduce or stop the two rail transport trains.

[0008] Furthermore, after step three, step four is also included, as follows:

[0009] When the obstacle detection device detects construction workers or obstacles in the space ahead, it transmits the information to the vehicle-mounted control terminal. The vehicle-mounted control terminal gives a warning signal and an emergency stop signal, and transmits the warning signal to the control platform outside the tunnel through the vehicle-mounted base station, tunnel communication base station and communication cables.

[0010] Furthermore, after step 4, step 5 is also included, and step 5 is as follows: when the rail transport marshaling 14 is moving, the on-board control terminal obtains the speed information of the corresponding rail transport marshaling, and the rail transport locomotive identification card displays the position information of the corresponding rail transport marshaling in real time, and transmits the speed information and the position information to the control platform outside the tunnel through the tunnel communication base station and the communication cable;

[0011] The control platform determines whether the rail transport marshaling exceeds the speed value specified at the speed limit sign according to the speed limit sign set in the tunnel; if the rail transport marshaling exceeds the specified speed value, an overspeed warning message is generated and displayed on the control platform; and it is transmitted to the on-board control terminal through communication cables, tunnel communication base stations and on-board base stations, forming a warning message to remind the driver to slow down and pass through the speed limit section; and when the rail transport marshaling passes through the section set by the speed limit sign, the warning message is lifted.

[0012] Furthermore, after step five, step six is ​​also included, as follows:

[0013] The control platform plans the running trajectory of the rail transport marshaling according to the position information of the rail transport marshaling and rail transport vehicles on the track; when the running trajectory cannot be automatically planned, or the running trajectory has been planned but some switches have changed, changing the original planned running trajectory, the control platform issues an early warning message and transmits the information to the corresponding on-board control terminal through communication cables, tunnel communication base stations and corresponding on-board base stations to form an early warning message.

[0014] Furthermore, after step six, step seven is also included, as follows: the control platform receives the signal from the personnel identification card and displays the location information and trajectory of the construction personnel in the tunnel; when the construction personnel are in a dangerous state, the control platform sends early warning information to the construction personnel through the communication cable and the tunnel communication base station.

[0015] Furthermore, after step seven, step eight is also included, as follows: the switch controller receives the track change signal of the tunnel communication base station and controls the switch to switch the track; it is used to realize the simultaneous operation of multiple rail transport formations; the rail transport formation includes a rail transport locomotive and a rail transport vehicle; the rail transport locomotive is a powered vehicle, and the rail transport vehicle is a vehicle with transportation function.

[0016] Furthermore, after step eight, step nine is also included, as follows:

[0017] The control platform outside the tunnel sets two states, passable or impassable, for the track identification cards corresponding to the track driving section; when the track section is set to impassable, if the rail transport marshaling enters the above-mentioned impassable area, the display interface of the control platform will automatically issue an alarm message, and simultaneously send the warning information to the on-board control terminal, automatically or manually stopping the operation of the rail transport marshaling.

[0018] Furthermore, after step nine, step ten is also included, as follows:

[0019] When a train slipping accident occurs in a rail transport train, the on-board control terminal of the rail transport locomotive monitors the changes in wheel speed and vehicle positioning information in real time. When the wheel speed is zero but the vehicle positioning information continues to change, the on-board control terminal of the rail transport locomotive determines that a train slipping accident has occurred in the rail transport train, and transmits the above-mentioned train slipping accident information to the personnel identification card, the on-board control terminal, and the control platform outside the tunnel through the tunnel base station and communication cables, and issues an alarm message.

[0020] The beneficial effects of the present invention are as follows: 1. The rail transport marshaling, construction equipment, and construction personnel in the tunnel are equipped with or wear information devices, which can realize the real-time display of the positions of the above-mentioned vehicles, equipment, and personnel in the tunnel, and the rail transport warning information is automatically broadcast in the whole tunnel, providing comprehensive visual information for the transportation safety management in the tunnel under construction. 2. During the operation of the rail transport marshaling, it can realize automatic detection of locomotive faults, forward obstacle detection, driving safety distance monitoring, vehicle speed overlimit monitoring, automatic switch control, automatic locking of tracks in the construction section, and automatic warning of slipping. Through information technology, the rail transport marshaling itself, track and environmental information are obtained in real time, and the operation status of the above-mentioned rail transport marshaling is automatically controlled. 3. Rail transport can realize information-based dispatching management, eliminate the information blind spots of rail transport marshaling during operation, and ensure that multimedia information such as video and voice are transmitted to rail transport marshaling, construction equipment and construction personnel in a timely manner, ensuring the safety and efficiency of rail transport in long-distance tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 For rail transport;

[0022] Figure 2 It is a schematic diagram of a rail transport locomotive;

[0023] Figure 3 This is a schematic diagram of the structure of the rail transportation safety operation system in the tunnel under construction;

[0024] Among them: 1. Tunnel; 2. Communication cables; 3. Control platform; 4. Communication base station; 5. Turnout controller; 6. Turnout; 7. Rail transport locomotive; 7-1. Obstacle detection device; 7-2. On-board base station; 8. Construction personnel; 8-1. Personnel identification card; 9. Track identification card; 10. Obstacle; 11. Speed ​​limit sign; 12. Rail transport vehicle; 13. Communication channel; 14. Rail transport marshaling; 15. Track. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The present invention discloses a method for early warning of safe operation of rail transportation in a tunnel under construction, such as Figure 1 and 3 As shown, including the following:

[0027] Step 1: On one side wall of the tunnel 1 under construction and along the direction of the tunnel, a communication cable 2 is laid, and the end of the communication cable 2 is connected to a control platform 3 arranged outside the tunnel; in the tunnel section, multiple tunnel communication base stations 4 are arranged at intervals along the communication cable 2; multiple tracks 15 are arranged in the tunnel 1 under construction; the tunnel communication base station 4 can receive and send wireless signals, establish a wireless communication network in the tunnel, and transmit the above wireless signals to the control platform 3 outside the tunnel through the communication cable 2, so as to realize signal transmission inside and outside the tunnel.

[0028] Step 2: An obstacle detection device 7-1, a vehicle-mounted control terminal 7-3 and a vehicle-mounted base station 7-2 are installed on the rail transport formation 14; rail transport usually requires laying multiple tracks 15 inside the tunnel 3 to meet the simultaneous driving needs of multiple rail transport formations 14, and multiple switch controllers 5 and switches 6 are installed at the positions where track changes are required on the tracks 15 in the tunnel; a speed limit sign 11 is installed in the tunnel; a track card reader 7-4 and a track identification card 9 are installed on the track 15; construction personnel wear personnel identification cards 8-1, and a rail transport locomotive identification card 7-5 is installed on the rail transport locomotive; a rail transport vehicle identification card 12-1 is installed on the rail transport vehicle 12; Figure 2 The rail transport marshaling 14 is composed of a rail transport locomotive 7 and a rail transport vehicle 12. The rail transport locomotive 7 is a vehicle with power, and the rail transport vehicle 12 is a vehicle with a transport function. The components use small components in the prior art to meet the system working requirements.

[0029] By detecting the signal connectivity and integrity of the tunnel communication base station 4, the switch controller 5, and the on-board base station 7-2, and the signal strength changes of the track card reader 7-4, the rail transport locomotive identification card 7-5, the personnel identification card 8-1, the track identification card 9, the speed limit sign 11, and the rail transport vehicle identification card 12-1, it is determined whether the above equipment has a fault, and the early warning information and the fault location are displayed on the control platform 3 outside the tunnel, so as to remind the dispatchers and staff to take timely response measures.

[0030] The construction personnel 8 are all equipped with personnel identification cards 8-1, which can transmit wireless signals to the outside. The above signals are transmitted to the control platform 3 outside the tunnel. The accurate position of the construction personnel in the tunnel can be displayed on the control platform 3 outside the tunnel. When an emergency occurs, the construction personnel 8 can be sent warning information through the control platform 3 outside the tunnel, the communication cable 2, and the tunnel communication base station 4. At the same time, the construction personnel 8 can also actively send warning information through the personnel identification card 8-1, which is transmitted to the control platform 3 outside the tunnel through the tunnel communication base station 4 and the communication cable 2. The construction personnel outside the tunnel can take emergency rescue measures according to the location information and trajectory of the construction personnel 8 in the tunnel.

[0031] Step three, when two rail transport trains 14 on the same track approach each other, the control platform 3 determines the distance between the two rail transport trains 14 through the positioning information of the two rail transport trains 14. When it is less than the safe distance, the control platform 3 generates an early warning message and transmits it to the on-board control terminal 7-3 through the communication cable 2, the tunnel communication base station 4 and the on-board base station 7-2, completes the early warning, and reduces or stops the two rail transport trains 14.

[0032] After step three, step four is also included, as follows: when the obstacle detection device 7-1 detects that there are construction workers 8 or obstacles 10 in the space ahead, the information is transmitted to the vehicle-mounted control terminal 7-3, and the vehicle-mounted control terminal 7-3 gives a warning signal and an emergency stop signal, and transmits the warning signal to the control platform 3 outside the tunnel through the vehicle-mounted base station 7-2, the tunnel communication base station 4 and the communication cable 2.

[0033] After step 4, step 5 is also included. Step 5 is as follows: when the rail transport marshaling 14 is moving, the onboard control terminal 7-3 obtains the speed information of the corresponding rail transport marshaling 14, and the rail transport locomotive identification card 7-5 displays the position information of the corresponding rail transport marshaling 14 in real time, and transmits the speed information and the position information to the control platform 3 outside the tunnel through the tunnel communication base station 4 and the communication cable 2;

[0034] The control platform 3 determines whether the rail transport marshaling 14 exceeds the speed value specified at the speed limit sign 11 according to the speed limit sign 11 set in the tunnel 1; if the rail transport marshaling 14 exceeds the specified speed value, an overspeed warning message is generated and displayed on the control platform 3; and is transmitted to the on-board control terminal 7-3 through the communication cable 2, the tunnel communication base station 4 and the on-board base station 7-2, forming a warning message to remind the driver to slow down and pass through the speed limit section; and when the rail transport marshaling 14 passes through the section set by the speed limit sign 11, the warning message is released.

[0035] After step five, step six is ​​also included, as follows: the control platform 3 plans the running trajectory of the rail transport formation 14 according to the position information of the rail transport formation 14 and the rail transport vehicle 12 on the track 15; when the running trajectory cannot be automatically planned, or the running trajectory has been planned but some switches 6 change later, changing the originally planned running trajectory, the control platform 3 issues a warning message and transmits the information to the corresponding on-board control terminal 7-3 through the communication cable 2, the tunnel communication base station 4 and the corresponding on-board base station 7-2, forming a warning message to remind the driver to drive safely.

[0036] After step six, step seven is also included, as follows: the control platform 3 receives the signal from the personnel identification card 8-1, and displays the location information and trajectory of the construction personnel 8 in the tunnel 1; when the construction personnel are in a dangerous state, the control platform 3 sends an early warning message to the construction personnel 8 through the communication cable 2 and the tunnel communication base station 4.

[0037] After step seven, step eight is also included, as follows: the switch controller 5 receives the track change signal of the tunnel communication base station 4, and controls the switch 6 to switch the track; it is used to realize the simultaneous operation of multiple rail transport formations 14; the rail transport formation 14 includes a rail transport locomotive 7 and a rail transport vehicle 12; the rail transport locomotive 7 is a powered vehicle, and the rail transport vehicle 12 is a vehicle with transportation function.

[0038] After step eight, step nine is also included, as follows: the control platform 3 outside the tunnel sets the track identification card 9 corresponding to the track driving section to be passable or impassable; when the track section is set to be impassable, if the rail transport marshaling 14 enters the above-mentioned impassable area, the display interface of the control platform 3 will automatically issue an alarm message, and synchronously send the warning information to the on-board control terminal 7-3, automatically or manually stop the operation of the rail transport marshaling 14. A communication channel 13 is provided in the tunnel. During the construction of the communication channel 13, the track 15 at the intersection with the tunnel 1 will be occupied, and the rail transport marshaling 14 cannot be driven. According to the construction schedule of the communication channel 13, the construction personnel can set the locking section a corresponding to the communication channel 13 on the control platform 3 outside the tunnel, that is, it is not allowed to travel together, and lock the track corresponding to the locking section a and suspend its use. The warning information of the above-mentioned locking section a can be transmitted to the on-board control terminal 7-3 through the communication cable 2, the tunnel communication base station 4, and the on-board base station 7-2, forming a locking section warning information to remind the driver to slow down and stop, and suspend driving.

[0039] After step nine, step ten is also included, as follows: when a slipping accident occurs in the rail transport formation 14, the rail transport locomotive onboard control terminal 7-3 monitors the changes in wheel speed and vehicle positioning information in real time. When the wheel speed is zero but the vehicle positioning information continues to change, the rail transport locomotive onboard control terminal 7-3 determines that a slipping accident occurs in the rail transport formation 14, and transmits the above slipping accident information to the personnel identification card 8-1, the onboard control terminal 7-3, and the control platform 3 outside the tunnel through the tunnel base station 4 and the communication cable 2, and issues an alarm message.

Claims

1. A method for early warning of safe operation of rail transportation in a tunnel under construction, characterized in that: Includes the following: Step 1: On one side wall of a tunnel under construction (1), a communication cable (2) is laid along the direction of the tunnel, and the end of the communication cable (2) is connected to a control platform (3) arranged outside the tunnel; in the tunnel section, a plurality of tunnel communication base stations (4) are arranged at intervals along the communication cable (2); a plurality of tracks (15) are arranged in the tunnel under construction (1); Step 2: an obstacle detection device (7-1), a vehicle-mounted control terminal (7-3) and a vehicle-mounted base station (7-2) are arranged on a rail transport formation (14); a plurality of turnout controllers (5) and turnouts (6) are arranged at positions where track changes are required on a track (15) in a tunnel; a speed limit sign (11) is arranged in the tunnel; a track card reader (7-4) and a track identification card (9) are arranged on the track (15); construction personnel wear personnel identification cards (8-1), a rail transport locomotive identification card (7-5) is arranged on a rail transport locomotive; a rail transport vehicle identification card (12-1) is arranged on a rail transport vehicle; and it is determined whether a fault exists; Step 3: When two rail transport marshalings (14) on the same track approach each other, the control platform (3) determines the distance between the two rail transport marshalings (14) based on the positioning information of the two rail transport marshalings (14). When the distance is less than the safe distance, the control platform (3) generates an early warning message and transmits it to the on-board control terminal (7-3) through the communication cable (2), the tunnel communication base station (4) and the on-board base station (7-2), thereby completing the early warning and lowering or stopping the two rail transport marshalings (14).

2. The method for early warning of safe operation of rail transportation in a tunnel under construction as claimed in claim 1, characterized in that: After step three, step four is also included, as follows: When the obstacle detection device (7-1) detects that there are construction workers (8) or obstacles (10) in the space ahead, the information is transmitted to the vehicle-mounted control terminal (7-3), and the vehicle-mounted control terminal (7-3) gives a warning signal and an emergency stop signal, and transmits the warning signal to the control platform (3) outside the tunnel through the vehicle-mounted base station (7-2), the tunnel communication base station (4) and the communication cable (2).

3. The method for early warning of safe operation of rail transportation in a tunnel under construction as claimed in claim 2, characterized in that: The method further includes step 5 after step 4, wherein step 5 is as follows: when the rail transport formation 14 is moving, the onboard control terminal (7-3) obtains speed information of the corresponding rail transport formation (14), the rail transport locomotive identification card (7-5) displays the position information of the corresponding rail transport formation 14 in real time, and transmits the speed information and the position information to the control platform (3) outside the tunnel through the tunnel communication base station (4) and the communication cable (2); The control platform (3) determines whether the rail transport marshaling (14) exceeds the speed value specified at the speed limit mark (11) according to the speed limit mark (11) set in the tunnel (1); if the rail transport marshaling (14) exceeds the specified speed value, an overspeed warning message is generated and displayed on the control platform (3); and is transmitted to the on-board control terminal (7-3) through the communication cable (2), the tunnel communication base station (4) and the on-board base station (7-2), forming a warning message to remind the driver to slow down and pass through the speed limit section; and when the rail transport marshaling (14) passes through the section set by the speed limit mark (11), the warning message is released.

4. The method for early warning of safe operation of rail transportation in a tunnel under construction as claimed in claim 3, characterized in that: After step five, step six is ​​also included, as follows: The control platform (3) plans the running trajectory of the rail transport formation (14) according to the position information of the rail transport formation (14) and the rail transport vehicle (12) on the track (15); when the running trajectory cannot be automatically planned, or when the running trajectory has been planned but some switches (6) are changed afterwards, changing the originally planned running trajectory, the control platform (3) issues a warning message and transmits the information to the corresponding on-board control terminal (7-3) through the communication cable (2), the tunnel communication base station (4) and the corresponding on-board base station (7-2), thereby forming a warning message.

5. The method for early warning of safe operation of rail transportation in a tunnel under construction as claimed in claim 4, characterized in that: After step 6, step 7 is also included, as follows: the control platform (3) receives the signal from the personnel identification card (8-1) and displays the location information and trajectory of the construction personnel (8) in the tunnel (1); when the construction personnel are in a dangerous state, the control platform (3) sends an early warning message to the construction personnel (8) through the communication cable (2) and the tunnel communication base station (4).

6. The method for early warning of safe operation of rail transportation in a tunnel under construction as claimed in claim 5, characterized in that: After step 7, step 8 is also included, as follows: the switch controller (5) receives the track change signal of the tunnel communication base station (4) and controls the switch (6) to switch the track line; it is used to realize the simultaneous operation of multiple rail transport formations (14); the rail transport formation (14) includes a rail transport locomotive (7) and a rail transport vehicle (12); the rail transport locomotive (7) is a powered vehicle, and the rail transport vehicle (12) is a vehicle with a transport function.

7. The method for early warning of safe operation of rail transportation in a tunnel under construction as claimed in claim 6, characterized in that: After step eight, step nine is also included, as follows: The control platform (3) outside the tunnel sets the track identification card (9) corresponding to the track driving section to two states: passable or impassable; when the track section is set to be impassable, if the rail transport formation (14) enters the above-mentioned impassable area, the display interface of the control platform (3) will automatically issue an alarm message, and simultaneously send the early warning information to the on-board control terminal (7-3), automatically or manually stopping the operation of the rail transport formation (14).

8. The method for early warning of safe operation of rail transportation in a tunnel under construction as claimed in claim 7, characterized in that: After step nine, step ten is also included, as follows: When a rolling accident occurs in a rail transport train (14), the rail transport locomotive onboard control terminal (7-3) monitors the changes in wheel speed and vehicle positioning information in real time. When the wheel speed is zero but the vehicle positioning information continues to change, the rail transport locomotive onboard control terminal (7-3) determines that a rolling accident occurs in the rail transport train (14), and transmits the rolling accident information to a personnel identification card (8-1), the onboard control terminal (7-3), and a control platform (3) outside the tunnel through a tunnel base station (4) and a communication cable (2), and issues an alarm message.

Images