JP2936021B2 - Ground control relay monitoring device for automatic train stop device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground control relay monitoring device for an automatic train stopping device (hereinafter, referred to as an ATS device).

[0002]

2. Description of the Related Art In FIG.
QR is a ground control relay, 3 is its terminal voltage, HSlR
Is a signal indicating relay, and 5 is a control line, which is laid between the signal 1 and the grounding element 2 by connecting operating contacts of a power source 6, a ground control relay QR, and a signal indicating relay HSlR.

[0003] After the train TR passes through the ground child 2, the ground child 2
The ATS device automatically activates the brake and the traffic light 1
, And a ground control relay QR is installed at the position of the ground child 2. The ground control relay QR is restored when the traffic light 1 is stopped and the operation contact is opened, and the ATS is formed by forming a resonance circuit.
On the other hand, when the traffic light 1 is not in the stop state while the device is operating, the device operates to form an operating contact, and A does not constitute a resonance circuit.
Do not operate the TS device. As described above, since the ground control relay QR is the basis of the operation of the ATS device,
The maintenance staff had to go to the installation location of the grounding child 2 and measure the terminal voltage 3 of the grounding child control relay QR to check whether or not this relay was operating when it was not stopped. That is, when the traffic light 1 is at the stop indication, the voltage is zero volt, and when it is not the stop indication, the predetermined volt is attained.

[0004]

The conventional AT
In the case of the S device, in order to check whether the ground control relay QR is operating normally as described above, when the traffic signal is not stopped and the stop signal is not indicated, the terminal of the ground control relay QR Voltage 3 had to be measured.

Therefore, the present invention solves such a problem, and always monitors the operation status of the ground control relay without going to the installation location of the ground control relay and measuring the terminal voltage of the ground control relay. An object of the present invention is to provide a ground control relay monitoring device capable of investigating and restoring the cause of a failure in the case of an abnormality and preventing a malfunction of the ATS device before it occurs.

[0006]

In order to achieve the above object, a ground control relay monitoring apparatus according to the present invention has a ground control relay and an operation contact of a signal indicating relay laid between a signal and a ground. In the automatic train stop device connected by the control line, connected to the operation contact of the control line and the signal indication relay, and installed around the signal, the current of the control line and the operation contact of the signal indication relay are opened or configured. A current value for each condition is obtained from the condition, and a first current monitoring unit having a display for displaying the current value is connected to the first current monitoring unit via a transmission terminal and installed in a maintenance area. , A second current monitor having a display for displaying the current value. The first current monitoring unit includes a DC current detection sensor, an A / D converter, an interface, a central processing unit, which is sequentially connected in series with the control line.
And a relay contact input coupler connected to the operating contact of the signal indication relay and connected to the central processing unit.

[0007]

According to the above construction, the current of the control line and the opening of the operating contact of the signal indication relay or the configuration condition are input to the first current monitoring unit, and the current value under each condition is set to the first current monitoring unit.
It is determined by the current monitor and displayed on the display. Further, the current value is further displayed on the display of the second current monitoring unit in the maintenance area by the transmission terminal. Therefore, the maintenance person should set the current value displayed on the display of the second current monitoring unit in the maintenance section to the normal current value under the above-mentioned condition that is set when the stoplight of the traffic signal is indicated and when the stoplight is not indicated. When it is different from the above, it is determined to be abnormal. As described above, since the operation state of the ground control relay can be monitored in the maintenance area, it is not necessary to go to the installation location of the ground child for the determination as in the related art.

[0008]

FIG. 1 shows an embodiment of the present invention. In this embodiment, the same members as those of the related art shown in FIG.

Reference numeral 8 denotes a first current monitoring unit installed around the traffic light 1, and a control line 5 is connected to one input terminal 10 of the current monitoring unit 8 via a cable 11 as shown in FIG. The other input terminal 12 is connected to an operating contact of a signal indication relay HSlR via a cable 13. The first current monitoring unit 8 includes a DC current detection sensor 15, an A / D converter 16, an interface 1
7, a central processing unit (CPU) 18, a relay contact input coupler 20 connected to the input contact 12 and connected to the CPU 18, and a display 21 connected to the CPU 18.
The current value under each condition is determined from the current of the control line 5 and the opening of the operating contact of the signal indication relay HSlR or the configuration condition, and this current value can be displayed on the display 21. . The first current monitor 8 and the transmission terminal 24 are housed in a signal equipment box (not shown).

Reference numeral 23 denotes a second current monitoring unit installed in the maintenance zone, which is connected to the first current monitoring unit 8 via a transmission terminal 24 and a cable 25. The second current monitoring unit 23 has a display (not shown), and the current value can be displayed on the display.

The electric current of the control line 5 is
The current is input from the input terminal 10 to the current monitoring unit 8 and is detected by the DC current detection sensor 15. Then, after being converted into a digital signal by the A / D converter 16, the
Sent to U18. On the other hand, the opening or configuration condition of the operating contact of the signal indication relay HSlR is input from the input terminal 12 to the first current monitoring unit 8 via the cable 13 and sent to the CPU 18. The CPU 18 calculates the current value under each condition from the sent current of the control line 5 and the opening of the operating contact of the signal indicating relay HSlR or the configuration condition. The obtained current value for each condition is displayed on the display 21. This current value is further displayed on the display of the second current monitoring unit 23 in the maintenance section via the transmission terminal 24 and the cable 25. Accordingly, the maintenance staff sets the normal current under the above-described conditions that is set when the current value displayed on the display of the second current monitoring unit 23 in the maintenance section is the stop indication of the traffic light 1 and is not the stop indication. It is determined whether the value is different from the value. That is, when the current value is different from the normal value, the ground control relay QR is restored even though the traffic light 1 is not the stop indication, or the ground control relay QR is operated even when the stop indication is present. Investigate and recover the cause failure. At this time, the first current monitoring unit 8 near the traffic light 1
The same current value is also displayed on the display 21 of, so that the maintenance staff can also check the current value here.

In the above, when the current value is not a normal value, an alarm device for giving an alarm to notify an abnormality may be installed in the second current monitoring section 23. Monitoring is more effective.

The specific configuration of the first current monitoring unit 8 shown in FIG. 2 is merely a preferred example, and the present invention may be modified as appropriate without departing from the gist of the present invention.
It is possible to modify.

[0014]

According to the first aspect of the present invention, the maintenance person monitors the operation state of the ground control relay from the current value displayed on the display of the second current monitoring unit in the maintenance area. When it is determined that the current value is not a normal value but an abnormal value, it is sufficient to investigate and recover from the cause failure, and it is not necessary to go to the installation location of the ground terminal as in the related art. Therefore, it is possible to quickly and easily investigate and recover from the abnormality, and to prevent the ground control relay from recovering and causing the ATS device to malfunction even if the traffic signal is not stopped. According to the second aspect of the present invention, the current value displayed on the display can be viewed as a digital signal, and it is easier to determine whether the current is normal or abnormal.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a ground control relay monitoring device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a current monitoring unit according to the first embodiment;

FIG. 3 is a schematic diagram of a conventional ground control relay monitoring device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Signal 2 Ground terminal 5 Control line 6 Power supply 8 1st current monitor 15 DC current detection sensor 16 A / D converter 17 Interface 18 CPU 20 Relay contact input coupler 21 Display 23 2nd current monitor 24 Transmission terminal QR Ground Child control relay HSlR Signal indication relay

Continuing on the front page (72) Inventor Koichi Kikuchi 2-20-2 Nakaikegami, Ota-ku, Tokyo Dai-no-Sign Signal Co., Ltd. (72) Inventor Nobuyuki Taguchi 2-2-2 Nakaikegami, Ota-ku, Tokyo Large (72) Inventor Takashi Koike 1-161 Kitano, Mitaka, Tokyo (56) References JP-A-2-197201 (JP, A) JP-A-58-156451 (JP, A) JP-A-1-266060 (JP, A) JP-A-63-144704 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B61L 1/00-23/34 JICST file (JOIS)

Claims (2)

(57) [Claims] 1. An automatic train stop device wherein an operation contact of a ground control relay and a signal indicating relay is connected by a control line laid between a signal and a ground signal relay. Connected to the operating contact and installed around the signal, the current value of each condition is obtained from the current of the control line and the opening or operating condition of the operating contact of the signal indicating relay, and a display that displays this current value is obtained. A first current monitoring unit having a first current monitoring unit, and a second current monitoring unit connected to the first current monitoring unit via a transmission terminal and installed in a maintenance area and having a display for displaying the current value. Characteristic ground-based control relay monitoring device of automatic train stop device. 2. A first current monitoring unit is connected to operating contacts of a DC current detection sensor, an A / D converter, an interface, a central processing unit, and a signal indication relay sequentially connected in series with a control line, The relay monitoring device according to claim 1, further comprising a relay contact input coupler connected to the central processing unit.