JPS61247564A - Control system of departure indicator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is applicable to a new transportation system (automatic train operation system) that aims to reduce the number of train crews to one-man staff and unmanned stations, etc. The present invention relates to a method for controlling the operation of a departure instruction device.

(Prior technology) In new transportation systems, in order to save labor and streamline train operation, a central control unit controls and manages train operation within a wide track area that includes multiple stations. There is. Among these types of train control methods, a conventional method for controlling departure instruction devices such as buzzers and indicator lights that instruct train departure at each stop station is as shown in Japanese Patent Application Laid-Open No. 54-40413. There is a known method in which a local signal from a local control facility installed at a station is ANDed with a train departure command signal from a central control device to output a train departure command signal.

However, according to this method, the departure command is ready only after receiving an active command to "instruct the train to depart" from the central side, so if the central control unit goes down due to a failure etc., the front line area under control will be There was a serious drawback in that train departure instructions were not issued and train operations were therefore halted.

Note that as a countermeasure to this point, it is conceivable to make the central control device a multiplex system with alternative equipment in case of the above-mentioned failure, but this is not a good idea as it would complicate the device configuration and significantly increase costs.

(Object of the Invention) Therefore, the present invention provides a control system for a train departure instruction device that allows train operation to continue even when the center side is down, while leaving the central control device as a single system.

(Structure of the Invention) The present invention is characterized by a command signal from a central control device that controls train operation within a track range including a plurality of stations, and at least a train detection means installed at a station. This system controls the operation of a departure instruction device such as a departure instruction buzzer using a signal from a local control facility, and the central control device outputs a departure instruction suppression command signal that suppresses the departure instruction. Input the command inhibition command signal and the signal from the local control equipment to the AND circuit,
11wJ method of the train departure instructing device which operates the train departure instructing device by the output of the AND circuit;
It is in.

(Example) In FIG. 1, A is a central control system, and B is a local (station) side control system. The central control system A includes a central control unit WL1 that outputs appropriate train control commands based on a preset train schedule and train status through the operation of a computer or a train dispatcher, and a central/local data transmission system. A central data transmission device 2 is installed. On the other hand, the local side control system B includes a local side transmission device 3 that exchanges data with the central side data transmission device 2, and a train detection device as local side control equipment! 4, and a local control unit 5 are provided, and the local control unit 5 controls the operation of a departure instruction buzzer 6 and a departure instruction light 7 (hereinafter referred to as simply a buzzer and an indicator light under IX) as a departure instruction device. be done.

The train detection device 4 includes a train detection loop 41 installed at a predetermined position on the track inside the station, and a train detection receiver 42 that receives a signal from the detection loop 41. While stopping at a predetermined position, the train detection signal S1 from this train detection 1114 is local l1lI
Sent to l1 section 5. In addition, there is a branch section on the station track,
The relay interlock device 8 for controlling the branch device is located on the local side m1ll! At so-called interlocking stations installed as one station, a route opening signal S2 from the transfer ff1l moving unit N8 is applied to the local control unit 5 in addition to the train detection signal S1. On the other hand, at a general station that does not have such a track branch, only the long train detection signal S1 is applied to the local control section 5 as a local signal for controlling the buzzer 6 and indicator light 7. The case of linked stations will be explained below.

The central IIJtll system M1 controls the operation of the buzzer 6 and the indicator light 7, that is, as a command signal regarding the departure command, it issues a departure command as necessary, rather than the conventional active departure command signal of "instruct the train to depart". A departure instruction suppression command signal S3 is output, and this signal S3 is applied to the 0-cal control unit 5 via the central data transmission device '2 and the local data transmission device [3. Further, from the central side, a departure inhibition command signal S4 for prohibiting train departure in an emergency is outputted to the local IIIt1 section 5 along with a direct inhibition command signal @S3 regarding this train departure instruction.

To explain the configuration of the local control unit 5 along with its operation, in FIG. The timer 52 starts timing operation in response to the train detection signal S1, and after a predetermined period of time has elapsed, the time over signal a from the timer 52 is applied to the first AND circuit 53 as one input.

The train detection signal $1 is also directly applied to the first AND circuit 53 as the other input, and is also input to the second AND circuit 54 at the same time. The output signal of the first AND circuit 53 becomes "1" when the AND condition of the time-over signal a and the train detection signal S1 is met, and this output signal is input to the OR circuit 55. The output signal C of this OR circuit 55 is input to the second AND circuit 54, and the output d of the second AND circuit 54 is input to the OR circuit 55.

On the other hand, both the departure instruction inhibition and departure inhibition signals S3 from the center side
．． 34 is input to the NOR circuit 56 in the local control unit 5, and the NOR circuit is activated only when the angle command signals 83 and 84 are both "0", that is, there is no command from the center to inhibit the departure instruction or to inhibit the departure. The output e of 56 becomes "1".

The output signal e of this NOR circuit 56, the output signal C1 of the OR circuit 55, and the route opening signal S2 are outputted to the third AND circuit 57.
is input. If these three signals are all "1", that is, time-over signal a has been output, train T is at a predetermined position on the track inside the station, route opening signal S2 is present, and a restraining command has been received from the central side. When the four characteristics of "absence" are satisfied, the output signal f from the third AND circuit 57 becomes "1". This output signal of "1" causes the buzzer 6 to sound and the indicator light 7 to light up.

Note that 58 is a timer reset circuit for inputting the output signal f of the third AND circuit 57 to the timer 52 as a reset signal, and this reset circuit 58 resets the timer 52 at the same time as the departure instruction signal is issued. Prepare for the next train. However, in this case, since the OR circuit 55 and the second AND circuit 54 are combined in a staggered manner, the output C of the OR circuit 55 is kept at "1", so the output of the third AND circuit 57 is f is held at "1" regardless of timer reset. This also applies if, for example, the time-over signal a is interrupted before departure due to a delay in departure. In this way, the buzzer 6 and the indicator light 7
is maintained in the operating state unless there is a train detection signal S1, a route opening signal S2, and a departure instruction inhibition or departure inhibition command signal Ss, 84.

Note that the train departure instruction suppression command signal S3 from the central side may be output only when necessary, or it may be output regularly so that the timing cannot be checked from the time the train enters the station track. It is also possible to make it stop. Further, in FIG. 2, reference numeral 9 denotes a departure restraint indicator light controlled by a departure restraint command signal $4.

By the way, in the above embodiment, the timer 52 is reset by the reset circuit 58 when the departure instruction signal is issued from the third AND circuit 57, but for example, when the train T departs and the train detection signal S1 disappears. The configuration may be such that the timer reset signal is sometimes given. With this configuration, the second AND circuit 54 and the OR circuit 5
5 does not necessarily have to be used; in FIG.
The output side of the AND circuit 53 may be directly connected to the input side of the third AND circuit 5.7. Further, the first AND circuit 53 may also be omitted, and the time-over signal a and the train detection signal S1 may be input in parallel to the third AND circuit 57. On the other hand, the departure deterrence command signal S4 from the center side,
3 in FIG.
It may also be input to the AND circuit 57. In addition, as a departure instruction device, the above-mentioned buzzer 6 and indicator light 7 are used.
In addition, mechanically moving signs can be used.

(Effects of the Invention) As described above, according to the present invention, as a signal regarding a departure instruction from the center side, "Support train departure" as in the conventional case is used.
Rather than an active departure command signal, the system outputs a departure command suppression command signal that suppresses the departure command as necessary, giving the 0-Cal (station) the initiative in issuing the train departure command. Even if the central control device remains single-system and the central control device goes down due to a failure of the device, train operation can be continued by local control.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram of the a-Cal II1wJ section in the same embodiment. DESCRIPTION OF SYMBOLS 1... Central control device, 4... Train detection device as local subsidiary equipment, 5... Local control unit, 57.
. . . AND circuit of the control unit, 6. Buzzer as a departure instruction device, 7. Indication light, Sl.. Train detection signal, S3.. Departure instruction suppression command signal.

Claims (1)

[Claims] 1. Departure instructions are given by command signals from a central control unit that controls train operation within a track area that includes multiple stations, and signals from local control equipment installed at the station and equipped with at least train detection means. This method controls the operation of a departure instruction device such as a buzzer, in which the central control unit outputs a departure instruction suppression command signal that suppresses the departure instruction, and this departure instruction suppression command signal and the local control equipment output a departure instruction suppression command signal. 1. A control method for a train departure instructing device, characterized in that a signal is input to an AND circuit, and the operation of the train departure instructing device is controlled by the output of the AND circuit.