JP3450254B2 - Train approach warning method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train approach warning method, and more particularly to a train approach warning method for warning a train maintenance worker to approach a train.

[0002]

2. Description of the Related Art Conventionally, in order to ensure the safety of an operator who performs maintenance and inspection work on a track when a train is in operation, when a worker is alerted to the approach of a train, a watchman approaches the train. However, in recent years, due to the speeding up of trains and the congestion of train schedules, further streamlining of work management and ensuring of safety have been demanded.

In order to meet this demand, for example, a wireless alarm system disclosed in Japanese Patent Application Laid-Open No. 9-104346 discloses a control station provided near the boundary of each preset section of a train track. Connected to this control station by wayside telephone line to transmit / receive transmitting station information to / from the control station, and to transmit an alarm signal wirelessly when train approach information is detected in the received transmitting station information. Station, and a track circuit connected to this transmitting station to detect approach of a train,
There is a description that a wireless receiver that issues an alarm based on an alarm signal received from a transmitting station is provided.

[0004]

In the above-mentioned conventional example,
Although a method of wirelessly notifying a mobile station, which is a wireless device carried by an operator, is shown, the mobile station only performs a receiving operation from a fixedly installed transmitting station.

For this reason, there is no method for the operator to notify that the evacuation has been completed or a method for issuing an alarm such as an abnormality sensed by the operator, and the mobile station side confirms whether or not the normal information has been received. It is not possible to grasp the fact that the mobile station has failed.

As a result, there is a problem that the operator cannot grasp whether or not the evacuation has been completed, and the control station side managing the approach warning system of the train cannot grasp the occurrence of an abnormality.

An object of the present invention is to provide a train approach warning method for carrying out a wireless terminal capable of transmission and reception by an operator so as to give a reliable warning of approach of a train and a notice of completion of shunting. To provide.

[0008]

A train approach warning method according to the present invention comprises a base station installed along a railroad track of a train at predetermined intervals, each of which is connected by a wired communication line, and connected to the communication line. A control station that controls and manages the base station, and a sensor that detects passage of the train and communicates with the control station via the base station as a detection signal, and the control station that receives the detection signal , A train approaching train operator who will pass the train in the future controls the base station corresponding to the mobile station possessed by the train station to notify the approach warning of the train and receives the approach warning of the train.
The mobile station wirelessly communicates with the mobile station carried by the worker.
The approach warning of the train is notified by sound and display, and the track maintenance work is performed.
When the worker detects an abnormality, the work of the track maintenance work
It is possible for a person to issue an alarm using the mobile station.
The mobile station possessed by the supervisor who received the warning is
Alerts the mobile station owned by the operator of the
To that effect, and to the control station via the communication line .

[0009]

Further, it is characterized in that the operator notifies the mobile station possessed by the supervisor that the operator has operated the portable station and saved it in a safe place.

Further, the mobile station always carries out radio communication with the base station at regular intervals and notifies the control station by adding position information to its own identification information, and the system judges whether or not there is a response from the control station. It is characterized by confirming the normality of.

Further, when the mobile station cannot normally communicate with the control station, the mobile station determines that an abnormality has occurred in the system, and wirelessly communicates the system abnormality to the mobile station.
The feature is that the system abnormality is notified by sound and display.

[0013] The observer in the proximity warning of the mobile station is the train or system the mobile station if not performed normally with respect to the abnormality of the radio communication the mobile station sound and displays a communication abnormality mobile station It is characterized by notifying to.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention.

In this embodiment, the base stations 41 to 43, which are installed along the railroad track 82 of the train 81 at predetermined intervals and are connected to each other by the wired communication line 73, are connected to the wired communication line 73, and the base station 41 is connected. A control station 51 that controls and manages
The passage of the train 81 is detected and the base stations 41 to 4 are used as detection signals.
In the control station 51 which has the sensors 61 to 63 communicating with the control station 51 via 3 and receives the detection signal, the base station corresponding to the mobile station 31 possessed by the supervisor 11 of the track maintenance work through which the train will pass in the future. The station 41 is controlled to notify the approach warning of the train 81.

Further, the mobile station 31 which receives the approach warning of the train
Then, the approach alarm of the train 81 is notified by sound and display to the mobile stations 22 to 24 possessed by the workers 12 to 14 by wireless communication.

In addition, the workers 12 to 14 are mobile stations 22 to 2
The mobile station 31 possessed by the monitor 11 is notified that the monitor 4 has been saved to a safe place.

The mobile station 31 always carries out radio communication with the base station 41 at regular intervals to notify the control station 51 of the identification information of its own station by adding position information to the control station 51. Check the normality of.

If the mobile station 31 cannot normally communicate with the control station 51, the mobile station 31 determines that an abnormality has occurred in the system and wirelessly communicates the system abnormality to the mobile stations 22 to 24. System sound is reported by sound and display.

When the mobile station 31 cannot normally perform the approach warning of the train 81 or the wireless communication of the system abnormality to the mobile stations 22 to 24, the mobile station of the communication abnormality is notified by sound and display.

Next, the operation of this embodiment will be described. FIG. 1 shows a case where track maintenance work is performed between railway stations, and the train proceeds from station 72 to station 71. The base stations 41, 42, and 43 are located along the line 82, for example, 50
Base stations 41, 42, 43 are fixedly installed every 0 m.
Are connected to each other by a wired communication line 73, and a control station 51 for managing the system is connected to one end of each of the base stations 4
Wired communication is possible between 1, 42, 43 and the control station 51.

A sensor 6 for detecting the passage of a train
1, 62 and 63 are wire-connected to the base stations 41, 42 and 43, respectively.

When the sensor 63 provided on the track 82 detects that a train has passed, it notifies the base station 43 connected by wire that the train has passed. The base station 43 is a wired communication line 73 and the control station 51 via the base station 42 and the base station 41.
Notify that the train 81 has passed.

The control station 51 causes the base station 41 to notify the approaching alarm of the train to the mobile station 31 possessed by the supervisor 11 in order to notify the track maintenance worker who is performing the track maintenance work of the approaching alarm of the train. The mobile station 31 which receives the approach warning of the train from the base station 41 is the mobile station 22 carried by the workers 12, 13, and 14,
A train approach warning is communicated to the mobile station 23 and the mobile station 24, and the supervisor 11 is notified by sound and display. The mobile station 22, the mobile station 23, and the mobile station 24 which have received the approach warning of the train notify the track maintenance worker 12, the track maintenance worker 13, and the track maintenance worker 14 by sound and display. The track maintenance worker evacuates to a safe place determined in advance by the train approach warning. When the evacuation is completed, the workers 12, 13, 14 of each track maintenance use the mobile stations 22, 23, 24 to notify the mobile station 31 owned by the observer 11 of the evacuation completion, and the observer 11 You can check the evacuation completion.

The mobile station 31 always carries out radio communication with the base station 41 at regular intervals and notifies the control station 51 of the position. If this communication cannot be performed normally, the mobile station 31 determines that an abnormality has occurred in the system, wirelessly communicates the system abnormality to the mobile stations 22, 23, 24, and then the mobile stations 22, 23, 24.
Notifies the track maintenance workers 12, 13, 14 of a system abnormality by sound and display, and warns that the approach warning system of the train is not operating normally at present (abnormality). Further, when the mobile station 31 cannot normally perform the approach warning of the train or the communication of the system abnormality to the mobile stations 22, 23, 24, the mobile station 31 cannot normally communicate. , 24 is notified to the observer 11 by sound and display. As a result, the observer 11 can grasp the track maintenance workers 11, 12, and 13 who are carrying the abnormal mobile stations 22, 23, and 24, and can save them in a safe place.

When the track maintenance workers 12, 13, 14 confirm the approach of the train or detect an abnormality, the track maintenance workers 12, 13, 14 use the mobile stations 22, 23, 24 to give an alarm. Who can issue a warning
The mobile station 31 owned by 1 is an operator 12, 1 of another track maintenance
An alarm is communicated to the mobile stations 22, 23, 24 owned by 3, 14 and that effect is communicated to the base station 41 on the system side,
The wired communication line 73 is used to communicate with the control station 51 and the system recognizes an alarm.

Similarly, if the control station 51 cannot communicate for a certain period of time, it determines that an abnormality has occurred in the system, issues an alarm, and calls attention to train operation.

The base stations 41, 42 and 43 are connected to the line 82.
When the mobile station 31 moves, it is switched to the base stations 41, 42, 43 having the best communication condition with the mobile station 31.
Even if 1, 12, 13 move, it is possible to communicate with the control station 51 and receive a train approach warning.

FIG. 2 is a detailed block diagram of the base stations 41 to 43 of this embodiment. In FIG. 2, the wired communication unit 104
Is a wired communication line 10 with an adjacent base station or control station.
5, 106 (73), and communicates with the control station. It also manages transmission information and reception information by wire and notifies the control unit 103 of the transmission information or the reception information.

When the control unit 103 determines that the notified transmission information or reception information is the transmission information or reception information for the mobile station 31 existing in its own area, the control unit 103 communicates with the radio unit 102, The wireless unit 102 performs wireless communication with the mobile station 31.

When the radio section 102 receives information by radio communication from the mobile station 31, it notifies the control section 103 of the information. When the control section 103 determines that the information is for itself, the control section 51 sends the information. The wired communication unit 104 is caused to perform transmission for reporting.

When the control unit 103 determines that the information received by the wired communication unit 104 is the information that needs to be notified to the adjacent base station, the wired communication unit 104 causes the wired communication lines 105 and 106 ( 73) to communicate the required information.

FIG. 3 is a detailed block diagram of the mobile station 31 of this embodiment. In FIG. 3, when the base-to-base radio unit 112 receives information wirelessly, the control unit 113 is notified of the received information, and the control unit 113 is the information from the base station 41 to the own station. Determine whether or not. When it is the information of the own station, it judges what the information should be, informs the observer 11 by the display and sound on the display unit 116 and the speaker 117, and notifies the portable radio unit 114 to the portable unit.
Wireless communication with the mobile stations 22, 23, 24.

When the radio unit for portable station 114 receives information by radio communication, it notifies the control unit 113, and the control unit 1
At 13, it is judged whether the information is the information of the own station, and the display unit 11
6 and the speaker 117 notify the observer 11 by sound and light. In addition, the wireless communication with the base station 41 is performed by notifying the radio unit 112 for base station.

Further, the workers 12, 13, 14 communicate the completion of the saving to the base stations 41, 42, 43 with the switch 118,
The switch 119 has a function of notifying the control station 5 and the mobile stations 22, 23 and 24 of an alarm due to occurrence of an emergency by wireless communication.

FIG. 4 is a detailed block diagram of the mobile stations 22 to 24 of this embodiment. When the wireless unit 122 receives the information by wireless communication, the wireless unit 122 notifies the control unit 123 of the information, and the control unit 123 determines whether the information is from the mobile station 31 to the own station. If the information is for the own station, it is determined what the information is, and the result of the determination is notified to the workers 12, 13, 14 by the display and sound through the display unit 116 and the speaker 117. Further, the switch 128 is operated when the workers 12, 13, 14 complete the evacuation, and the switch 1 is operated when an emergency occurs.
29 is operated to report the alarm information to the mobile station 31 by wireless communication.

[0037]

As described above, according to the present invention, a track maintenance worker can know the approach of a train by carrying a portable station and can work safely.

When an abnormality occurs in the system, a train track worker can recognize that the train approach warning system is not operating normally, and pay attention to the approach of the train while paying attention to the approach of the train. It is possible to evacuate.

Further, even if the mobile station moves, it is possible to communicate with the base station having the best communication condition among the plurality of base stations laid along the track, so that it is possible to work while moving. is there.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a detailed block diagram of a base station according to the present embodiment.

FIG. 3 is a detailed block diagram of a mobile station according to the present embodiment.

FIG. 4 is a detailed block diagram of a mobile station according to the present embodiment.

[Explanation of symbols]

11 Observer 12, 13, 14 workers 22, 23, 24 Mobile stations 31 mobile stations 41, 42, 43 base stations 51 control station 61,62,63 sensor 71,72 stations 73 Wired communication line 81 trains 82 tracks

─────────────────────────────────────────────────── ───Continued from the front page (56) Reference JP-A-9-104346 (JP, A) JP-A-4-126664 (JP, A) JP-A-4-127400 (JP, A) JP-A-8- 72719 (JP, A) JP 9-69198 (JP, A) JP 2000-76575 (JP, A) Patent 2813609 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) B61L 23/06 G08B 23/00 530 G08B 25/10 H04B 7/26

Claims (5)

(57) [Claims] 1. A base station installed along a railroad track of a train at predetermined intervals, each of which is connected by a wired communication line,
A control station that connects to the communication line and controls and manages the base station, and a sensor that detects passage of the train and communicates as a detection signal to the control station via the base station. The receiving control station controls the base station corresponding to the mobile station possessed by the supervisor of the track maintenance work that the train will pass through in the future to notify the approach warning of the train, and the approach warning of the train.
The mobile station that received the
Train approach alerts will be notified by sound and display via line communication, and
If the line work worker detects an abnormality,
It is possible to issue an alarm from the worker of the industry using the mobile station
, And the transfer carried by the person who received the alarm
The mobile station notifies the mobile station owned by another worker of the alarm,
Notify the base station to that effect and use the communication line to control the control station.
Train approach warning method characterized by notifying the train. Wherein said operator the train proximity warning method according to claim 1, wherein the notifying the mobile station of the surveillant that by operating the mobile station and saved in a safe place possessed. 3. The mobile station always wirelessly communicates with the base station at regular intervals, adds position information to the identification information of its own station and notifies the control station, and a system is determined based on the presence or absence of a response from the control station. 2. The train approach warning method according to claim 1, wherein the normality is confirmed. 4. The mobile station determines that an abnormality has occurred in the system when communication with the control station cannot be performed normally, and wirelessly communicates the system abnormality to the mobile station, and outputs a sound and a display. The train approach warning method according to claim 3, wherein the system abnormality is reported by. Wherein said approaching the mobile station the train alarm or system the mobile station if not performed normally with respect to the abnormality of the radio communication the mobile station said communication abnormality mobile stations by sound and display Claim to inform an observer
Train approach warning method described in 3 .