JPH048663A - Alarm transmitter - Google Patents

Abstract

PURPOSE:To promptly direct workers during work to retreat etc., by displaying signal outputs of plural signals on the display panel of an alarm transmitter in one screen, and indicating by means of signs such as arrows, etc., how a train passes in sequence the plural signals all of which are located within a predetermined distance from a working site. CONSTITUTION:B1 to B5 and F1 to F5 are signal transmitters mounted on respective signals installed at regular intervals and 6 is normally an alarm transmitter that a track work supervisor carries with him at a track work site and a distance (km) from the starting point of a track is indicated below each of the signal transmitters B1 to B5 and F1 to F5. Each of the signals outputs a passage detection signal when a train approaches and passes it. According to the passage detection signal the corresponding signal transmitter transmits a varying point notification signal including self address (signal number), a distance by km, the code of a railroad section, the kind of the railroad (up/down/single track), and the state of the signal (status) on radio waves. The alarm transmitter 6 receives the radio waves and displays the approach of the train according to the varying point notification signal and also outputs an alarm to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an alarm transmitting device that issues an alarm when a train approaches.

(Conventional technology) Conventionally, during track maintenance work during train operation hours, a lookout is placed to watch for approaching trains, and this lookout visually confirms the approach of trains, thereby posing a danger to track maintenance workers. I was trying to let you know.

Alternatively, watchmen carried timetables, checked the timetables, communicated with nearby stations, confirmed the approach of trains, and alerted track maintenance workers of danger.

Upon receiving this news, workers evacuated the tracks and confirmed that a train had passed before starting work.

However, the above-mentioned method requires a dedicated person to watch the approach of trains, which requires manpower. Additionally, since the approach of trains is checked manually, sometimes oversights occur and warnings are delayed, resulting in serious danger to workers.

As a way to solve these problems, a signal transmitting device is attached to the signal installed along the rail, and when a train approaches and passes, the passing detection signal output from the signal is sent to the signal transmitting device. One possible method would be to add this information and send it as a change point notification signal, which would then be received by an alarm transmitter at the track maintenance work site to notify workers of the approach of a train.

(Problem to be Solved by the Invention) In this case, the warning transmitting device detects the approaching situation of the train, for example, the train approaches the construction site from the time the train approaches the construction site by a certain distance until the train passes the construction site. It is necessary to inform the construction supervisor (operator) of how far and from which direction the train is approaching, so that the approaching status of the train can be quickly and easily grasped.

Therefore, the present invention provides an alarm transmitting device that displays on a single screen the status of a train passing through traffic lights within a certain range from a construction site, thereby allowing a construction supervisor to quickly and easily grasp the status of a train approaching. The purpose is to

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an alarm transmitting device that receives a change point notification signal from a signal transmitting device installed along a railway line at a work site and outputs an approach warning. , among the communicable signal transmitting devices, the N ones closest to the work site (
N: an integer) signal transmitting device is identified from the distance between the signal transmitting device and the work site, and when a change point notification signal indicating the approach of a train is received from the specified signal transmitting device, the train approaches the signal transmitting device. Based on the method of displaying an approach display on the screen indicating that the
means for displaying on the screen a display indicating that the designated signal transmitting device is a monitoring target, and outputting an approach warning when a change point notification signal indicating a train approach is received from the designated signal transmitting device; means for displaying a traveling direction display indicating the traveling direction of the train on the screen with the left side of the screen as a reference based on a line type designation from the outside; a display position of the approach display and a direction display of the traveling direction display; and means for displaying on the screen what is being done with the left side of the screen as the starting point of the track.

(Function) When a train approaches, each signal transmitting device transmits a change point notification signal to the alarm transmitting device to notify the approaching train. The alarm transmitting device at the work site receives the change point notification signal,
When this corresponds to one of the N signal transmitting devices closest to the work site, an approach indication for that signal transmitting device is displayed on the screen each time. This, in conjunction with the train traveling direction display displayed on the same screen, makes it possible to visually grasp the progress of the train quickly.

Further, a signal transmitting device to be monitored is specified in advance, and when a change point notification signal notifying the approach of a train is received from the signal transmitting device, an approach display is displayed on the screen,
Output to outside. Thereby, it is possible to give an evacuation command etc. to the worker who is working.

Here, on the screen, it is clearly indicated that the position, direction, etc. are displayed assuming that the starting point of the track is on the left side of the screen, so that the screen and the actual positional relationship can be easily understood at the work site.

(Example) FIG. 2 is a configuration example of a train approach warning system using the warning transmitting device according to the present invention, 81 to B5, F1 to F
Reference numeral 5 indicates a signal transmitting device attached to traffic lights installed at predetermined intervals along the track, and reference numeral 6 indicates the above-mentioned alarm transmitting device, which is usually carried by a construction supervisor at the track maintenance work site. The distance M (in kilometers) from the starting point of the track is marked on the bottom of the devices 31 to B5 and F1 to F5.

An outline of the operation of the train approach warning system shown in FIG. 2 will be explained below. The signal outputs a passage detection signal when a train approaches or passes. The corresponding signal transmitting device determines its own address (signal number) based on the passage detection signal.
A change point notification signal containing information such as , kilometer, line section code, line type (up/down/single line), and signal condition (status) is transmitted via radio waves.

The warning transmitting device 6 receives this radio wave, displays the approaching situation of the train based on the change point notification signal, and outputs a warning to the outside.

FIG. 1 is a block diagram of an embodiment of the alarm transmitting device 6, which includes an antenna 1, a transceiver 2, a control section 3, a display section 4,
It consists of a storage section 5, communicates with each signal transmitting device using radio waves, and displays the approaching status of trains on the display panel of the display section 4.

FIG. 3 is an example of a screen displayed on the display panel. Here, the display "left starting point" indicates that the position and direction of the display on the screen is to display the left end as the starting point of the track. Display rB4. , rB3 "B2", [B1], "work site", "Fl", [F2], "B3", and "B4" are basically the signal transmitting devices 84 to B1 shown in FIG.
Corresponding to work site A, signal transmitting devices Fl to F4, the display “
It is displayed in km I11 with the left starting point J as a reference, and the display rB4. "B1" represents a signal transmitting device in the rear direction of the work site, and "Fl" to "B4" represent a signal transmitting device in the forward direction of the work site. In addition, the display "B4" ~ "B1"
and the display “○” below rFIJ ~ “B4” (
Hereinafter, the display at this position will be referred to as the signal display).
4” to “B1”, rFIJ to rF4. It represents the contents of the change point notification signals from the signal transmitting devices B4 to B1 and F1 to F4 corresponding to , that is, the signal of the traffic light. " is displayed. Note that the display "◎" will be described later.

In addition, the line type is displayed immediately to the right of the starting point J on the left of the display F, with the signal ``←'' for ``up'', ``→'' for ``down'', and ``→'' for single track. " is displayed. moreover,
The blank display "Line section 101" below the display "Work site" indicates that the track to be worked on belongs to the line section 101.

Next, embodiments of the present invention will be described using the above-mentioned FIGS. 1 to 3. Prior to entering the train approach monitoring mode, the alarm transmitting device 6 shown in FIG.
A process is performed to make the signal display correspond to "B4".

That is, the alarm transmitting device 6 is within the range of radio waves,
Response signals including the line section code, line type, kilometer distance, signal number, etc. are collected from each signal transmitting device belonging to a predetermined line section, and for each response signal, the kilometer distance and the kilometer of the work site that has already been input are collected. It determines the distance of the corresponding signal transmitting device from the work site and whether it is in front or behind the work site. Then, for the forward direction signal transmitting devices, a first table is created by rearranging the distances and their signal numbers in descending order of distance, and a second table is created in the same manner for the rearward direction signal transmitting devices. is created and stored in the memory of the storage unit 5 shown in FIG.

FIGS. 4(a) and 4(b) show examples of the chifurs shown in FIGS. 1 and 2, with signal numbers 50-53 and 54-5.
7 are the signal transmitting devices 84~Bl, Fl~ in FIG. 2, respectively.
This is the signal number of F4.

Note that signals other than the signal transmitting devices 84 to B1 and F1 to F4 are ignored. Further, SBI to SB4 and SF1 to SF4 are addresses of the memory, and are previously associated with display rBIJ to rB4 frames "Fl" to "B4" shown in FIG. 3. As a result, signals are displayed for the four signal transmitting devices closest to the work site among the signal transmitting devices that have sent the response signal. For example, the signal transmitting device Bl with the signal number 53 has the display “B1” shown in FIG.
” will be displayed by the corresponding signal display. Further, the display "line section IO1" and the line type display "←" are respectively displayed based on the line section code input at the same time when entering the work site kilometer and the line type included in the response signal.

After performing the above processing, the alarm transmitting device 6 enters the train approach monitoring mode, and workers begin work at the track maintenance construction site. FIG. 3(a) is a screen example of the display panel of the display unit 5 of FIG. 1 in this case. Next, when the train approaches the signal transmitting device F4 shown in FIG. 2, for example,
The signal transmitting device F4 transmits a change point notification signal including its own signal number (57), status (indicating where the signal changes from blue to red), and the like. The alarm transmitting device 6 receives the change point notification signal and searches where in the first and second tables the signal number (57) included therein is stored. And the address of that storage location is SF4
Knowing that, SF4 as shown in Figure 3(b)
The signal display below the display "F4" corresponding to "F4" will be changed from "○" to "←" to indicate that the train is approaching/passing the signal transmitting device of display "F4" in the direction of the arrow. do.

Next, when the train approaches and passes signal transmitting device F3,
As shown in FIG. 3(c), the signal display corresponding to the display "F3" is changed from "◎j" to "←", and the display rF4. Change the signal display corresponding to ``←'' back to ○. Thereby, it can be known that the train has approached the third signal transmitting device F3 in the forward direction of the work site. Here, the display “F
The signal display corresponding to "3" is "◎". When a train approaches and passes the corresponding signal transmitting device F3, it outputs a warning to notify workers to evacuate, and
This indicates that a warning display is to be displayed on the display unit 4.

The construction supervisor considers the train speed and work content, considers which signal transmitting device the train should approach to issue a warning, and specifies the signal number of that signal transmitting device to the warning transmitting device 6.

The alarm transmitting device 6 stores the signal number in the memory of the storage unit 5 shown in FIG. ”. Therefore, when the signal number of the signal transmitter that sent the change point notification signal is stored in the memory, the alarm transmitter 6 displays the signal as "
◎” to “←” and, for example, in Figure 3 (c
), the alarm display "Alarm 1.82 is displayed.

Here, r 1.8 J indicates that the train approached 1.8b from the construction site. Thereafter, each signal display will display "○" or "←" according to the progress of the train, and the above-mentioned warning display will continue. When the train passes through the work site and passes through the first signal transmitting device B1, the screen of the display unit 5 is returned to the normal display shown in Part 3 (a).

Furthermore, if the train is moving backwards (on the track running from B4 to F4, and a change point notification is first received from F4), a warning is displayed unconditionally and the operator is notified to evacuate.

Further, the alarm transmitting device 6 periodically tests each signal transmitting device during the train approach monitoring mode. That is, the alarm transmitting device 6 sequentially reads signal numbers from the first and second tables stored in the storage unit 5, and transmits a test signal to the signal transmitting device corresponding to the read signal number each time, It is checked whether a response signal to the test signal is sent from the signal transmitting device. If the signal is not sent, the corresponding signal transmitting device indicates a failure and displays the corresponding signal on the display unit 5 as "x". Figure 5 shows the display “B4
This is an example of a display when the signal transmitting device corresponding to " is out of order.

Although the screen example shown in FIG. 3 shows a case where there is one line section, there may be a plurality of line sections if necessary. Figure 6 shows an example where there are three line sections, and the track maintenance work range is line section 086.
．． 101,259.

(Effects of the Invention) As described above in detail, according to the present invention, the signals of a plurality of traffic lights within a predetermined distance from a work site are displayed on a single screen on the display panel of the warning transmitting device, and the train As the train passes through the construction site, the progress of the train is displayed sequentially using arrow symbols, etc., so construction supervisors carrying warning transmitters can quickly and easily grasp the train's position and direction of travel from the construction site. Therefore, it is possible to quickly give evacuation instructions to workers who are currently working.

[Brief Description of the Drawings] Fig. 1 is a block diagram of a warning transmitting device according to an embodiment of the present invention, Fig. 2 is a block diagram of a train approach warning system using a warning transmitting device according to the present invention, and Fig. 5 and 6 are diagrams showing examples of screens of the display puff of the display section, and FIG. 4 is a table of distances and signal numbers. 7... Antenna, 8... Transmitter/receiver, 9... Control section, 10... Display section, 11... Storage section

Claims (2)

[Claims] (1) In an alarm transmitting device that receives a change point notification signal from a signal transmitting device installed along the railway line at a work site and outputs an approach warning, the N nearest to the work site among the communicable signal transmitting devices. When a number (N; an integer) of signal receiving devices are identified from the distance between the signal transmitting device and the work site, and a change point notification signal indicating the approach of a train is received from the specified signal transmitting device, the signal transmitting device receives the train. means for displaying an approaching display on the screen indicating that the object is approaching, and displaying on the screen a display indicating that the signal transmitting device designated based on the designation of the monitoring target from the outside is the monitoring target. , a means for outputting an approach warning when a change point notification signal indicating the approach of a train is received from a designated signal transmitting device, and a means for displaying a traveling direction display on the left side of the screen indicating the direction of train travel based on the line type specified from the outside. means for displaying on the screen as a reference; and means for displaying on the screen that the display position of the approach display and the direction display of the traveling direction display are performed with the left side of the screen as the starting point of the track. An alarm transmitting device featuring: (2) The method according to claim (1), wherein a test signal is sequentially transmitted to each of the identified signal transmitting devices, and a failure display indicating that a signal transmitting device that does not receive a response signal is at fault is displayed on the screen. Alarm transmitter.