JPH04150705A - Train controller - Google Patents

Abstract

PURPOSE:To stop a train correctly by sectioning a control section of a train running path into a plurality of subsections, further sectioning each subsection into a plurality of cross cells, laying induction lines in respective cross cells and controlling the operation of the train based on a signal transmitted from the train on the induction line. CONSTITUTION:A train running path 2 is sectioned into a plurality of subsections l' and a detecting induction line 4 and a cross induction line 5 are laid in each subsection l. Each section l' is further provided with a signal processing section 6 comprising a section detector 7, a cell detector 8 and a speed detector 9. A transmitter 2 mounted at the head of a train advancing along the travel Path radiates signals through an antenna 3. The signal processing section 6 detects signal transmitted from the transmitter 2 thus detecting existence of a train in the section l', current position and current speed which are then informed to a control center(not shown). During normal operation, the train is stopped at a predetermined point along a parabolic allowable speed curve whereas when the cell can not be detected correctly, the train is stopped in a stepping allowable speed. According to the constitution, the train is stopped safely.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a train control device, and in particular, to a magnetic levitation train,
The present invention relates to a train control device suitable for so-called linear motor cars.

[Problem to be solved by the invention]

A linear motor car obtains propulsion force by applying synchronous current from a power converter to the propulsion coil group according to the polarity of Togami's superconducting coils, and also obtains braking force in a regenerative mode using the power converter as a load. Travel control is being performed. During this running control, in order to stop the linear motor car, braking is performed using a mechanical brake in addition to braking using the regeneration mode described above. In general, in normal train control, it is said that high-density operation is possible when deceleration and braking are performed along a parabolic or additional allowable speed toward the target stopping point.
Many of the current railways are
Braking control is performed along eleven stages of permissible speeds, and braking control is performed along parabolic permissible speeds as shown in FIG. 3(b). In order to perform braking control in line with such permissible speeds, the current position of the train and the train speed at that position must be accurately known, and this also applies to linear motor cars. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a train control device that can control the train by accurately grasping the current position of the train (linear motor car) and the train speed at that position.

[Means to solve the problem]

In order to achieve the above object, the device of the present invention includes guide wires arranged in sections formed by dividing one control section of a train running path into a plurality of sections, and guide wires arranged in each section, and a crossing guide line that divides the section into a plurality of cells; a section detection means that receives a transmitted wave from a transmitter mounted on a train on the guide line and detects the section position of the train; a cell detection means for detecting the cell position of the train by receiving the information on the crossing guide line; a speed detection means for detecting the speed of the train from a change per unit time in the detected cell position; A control means that performs travel control at a parabolic allowable speed when the position detection and section position detection is output, and performs travel control at a stepped allowable speed when the speed detection and section position detection is output and there is no cell position detection output. It is characterized by consisting of.

[Effect]

In the above configuration, the section detection means receives the transmission waves from the transmitter mounted on the train via the guide wire, identifies the section, and detects the section position, and the cell detection means receives the transmission waves from the transmitter mounted on the train. Identify the cell received through the intersecting guide line and locate the cell! Detect. Then, the current position of the train is detected from the section position and cell position. The speed detection means detects the speed of the train from the change in cell position per unit time. Then, the control means controls the running of the train based on the parabolic allowable speed set at the time of cell position detection and section position detection output, and when there is no cell position detection output and there is section position detection output, the set speed is not set. The running of the train is controlled according to the allowable speed.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. Like well-known linear motor cars, the linear motor car 1 obtains propulsive force in the direction of the arrow by applying synchronous current to the propulsion coil group from a power converter according to the polarity of the superconducting coil on the car. It is configured to obtain braking force in a regeneration mode by using a power converter as a load. A transmitter 2 that outputs a transmission wave of a predetermined frequency is mounted on the front part of this linear motor car 1, and the transmission wave output from the transmitter 2 is sent to the ground side via an on-board antenna 3. is being sent to. A train running track (track) is divided into a plurality of sections and formed into a plurality of sections 1', fl', etc., and a loop-shaped guide [4] and a crossing guide line 5 are arranged for each section. The intersecting guide line 5 forms one cell for each intersection of the guide line, and therefore a plurality of cells S in one section l'.
1 to sn are formed (see FIG. 2 described later). The signal processing unit 6 is provided in each section detector, and includes a section detector 7 that processes the transmitted waves received by the guide wire 4, a cell detector 8 that processes the transmitted waves received by the cross guide wire 5, and a speed detector. It consists of a container 9. The section detector 7 is composed of the same processing circuit as the bandpass filter and amplification circuit included in the cell detector 8, and filters the received transmission wave with the bandpass filter, amplifies it, and detects the presence or absence of the amplified signal. , the presence of people on the linear motor car 1 in that section is detected. FIG. 2 is a schematic configuration diagram of the cell detector 8 and the speed detector 9. As the linear motor car 1 moves in the direction of the arrow, the transmitter 2 and the on-board antenna 3 also move in the same way. Therefore, a pulse-like transmission signal is generated in the cross-guide line 5, as shown in A in the same figure, in which one pulse corresponds to one cell. This pulse-like signal is made into a P wave by a bandpass filter 8a, and then amplified by an amplifier circuit 8b. The amplified signal is envelope-detected by a detection circuit 8C, and then a predetermined signal is detected by a level determination circuit 8d. The level is determined based on the threshold value and a pulse signal is generated. Then, the pulse signal is inputted to the counter 8e and counted, and the counted value is outputted to a train position detection section consisting of a microcomputer (not shown). The train position detection section calculates the train position from the counted value and the section position detected by the section detector 7, and calculates the train position from the current section position and the number of cells passing through the section position. Calculated. The speed detector 9 is composed of an AND circuit 10 and a counter 11, and the counter 11 counts the pulse signals from the level determination circuit 8d during one clock pulse period. The counted value is output to a speed detecting section consisting of a microcomputer (not shown). The speed detection unit calculates the speed based on the number of pulses within one cell passage time. Note that this speed calculation may be performed by calculating the speed of the linear motor car 1 based on how many cells it has passed during a certain period (per unit time).The detected train position and train speed are , is transmitted to the linear motor car I and a control center (not shown) by well-known communication means, and is used as control data for the linear motor car. As described above, the current position of the linear motor car 1 and the speed at that position are known, so if an abnormality occurs in the travel control system of the linear motor car 1 (for example, a failure of the regenerative brake), the allowable speed will be changed. When the vehicle deviates from the vehicle, it can be stopped using a mechanical brake with high deceleration or the like based on a preset parabolic or stepped permissible speed curve. In other words, when stopping the linear motor car 1,
As shown in Fig. 3 (a), (b), and (c), the end point of the allowable speed curve is set at the rear end of the section at the stopping point (section Sn in Fig. 3), and the linear motor car is braking controlled. The figure (a) shows the parabolic allowable speed that is adopted when the speed, cell, and section are all detected normally, and fine-grained braking control can be performed. FIG. 6(b) shows stepped allowable speeds that are adopted when the speed and section can be detected normally but the cell detection is not successful. Figure (c) shows that when cell detection is temporarily out of order (in the example shown, when cell detection in section S m-4 + S a-1 is out of order), braking is controlled in this section according to the stepped allowable speed. . This embodiment device detects the current position of the linear motor car 1 using a section detector 7 and a cell detector 8, and also detects the speed of the linear motor car 1 at the current position based on the detection output of the cell detector 8. Since it is detected by the speed detector 9, the current position of the linear motor car 1 and the speed at the current position can be accurately grasped, and when the speed, section, and cell detection are normal, it will be detected according to the parabolic allowable speed, and Among the above detections, if the cell detection is not successful, braking control can be performed toward the target stopping point along the stepwise allowable speed. In addition, although the above-mentioned Example showed the example of a linear motor car, it goes without saying that a normal train may be sufficient.

【Effect of the invention】

In the device of the present invention, the current position of the train is detected by the section detection means and the cell detection means, and the speed of the train at the current position is detected by the speed detection means based on the detection output of the cell detection means. , the current position of the train and the train speed at the current position can be accurately grasped, and if the speed, section and detection are normal, it will follow the parabolic allowable speed, and if the cell detection is not working among the above detections, it will move along the stairs. The train can be controlled according to the permissible speed.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an actual example device of the present invention;
Figure 2 is a block diagram showing the electrical configuration of the cell detector and speed detector, Figure 3(a) is a parabolic allowable speed diagram,
FIG. 3(b) is a stepwise allowable speed diagram, and FIG. 3(c) is a combination diagram of a parabola and p1 stepwise allowable speed. 1... Linear motor car (train), 2... Transmitter, 3... On-board antenna, 4... Guide line, 5... Cross guide line, 7... Section detector (section Detection means), 8... Cell detector (Cell detection means), 9... Speed detector (Speed detection means). Patent applicant: Central Japan Railway Company

Claims (1)

[Claims] A guide line arranged in a section formed by dividing one control section of a train running path into a plurality of sections, and a guide line arranged in each section, and dividing the section into a plurality of cells. a section detection means for receiving a transmission wave from a transmitter mounted on a train on the guide line and detecting a section position of the train; receiving the transmission wave on the crossing guide line; A cell detection means for detecting the cell position of the train; a speed detection means for detecting the speed of the train from a change in the detected cell position per unit time; and speed detection, cell position detection, and section position detection output. is characterized by comprising: a control means that performs travel control at a parabolic allowable speed, and performs travel control at a stepped allowable speed when speed detection and section position detection output is performed, and when there is no cell position detection output. train control equipment.