KR950002194Y1 - Automatic train control equipment - Google Patents

Abstract

No content.

Description

Train automatic control

1 is a block diagram of a vehicle speed automatic stop device.

2 is an ATC onboard block diagram.

3 is a block diagram of the present invention.

4 is a block diagram showing another embodiment of the present invention.

5 is a circuit diagram showing an embodiment of the subject innovation switching circuit.

* Explanation of symbols for main parts of the drawings

1: Ground Equipment 2: Car Box

3: oscillator 4: band pass filter

5: On-board signal pick-up coil 6: Receive amplifier

7: Frequency detector (DM) 8: Switch

8A: Automatic Switch 9: Logic Circuit

10: indicator 11: warning light and warning sound and relay

12: real speed detector

The present invention selectively detects any of the signals generated from railroad tracks and grounders installed on the train, and compares them with the actual speed signals of the train to automatically warn the speed of the train, maintain driving records, and automatically stop in an emergency. It relates to a train automatic control device to control so that.

Conventional vehicle speed automatic stop device (Patent Application No. 86-3494, Publication No. 89-3176) is a frequency that is oscillated in the oscillator by connecting the signal generated from the coil connector of the vehicle received the signal from the ground to the oscillator The signal of the speed detector of the vehicle in which the detection signal (F ₁ -F _n ) of the frequency detector that detects the signal and the speed of the currently running vehicle are measured by a signal detected by a moving, pulse, or mechanical method (S ₁ -F). S _n ) is applied to the logic judging control device and connected to the alarm device and emergency brake operating according to the comparative judgment situation, and a memory back (monitor) for analyzing the data of speed and operation status after the operation is completed It was possible to attach it and to have a built-in oscillation detection tester, but such a vehicle speed automatic stop device was used in the case where a grounded person was installed on the railway (ATS), If the rail (rail) without installation of the device, the signal of a specific frequency is an organic jijeop (ATC) had no inconvenience to use such a phase device. In addition, in the case of the ATC device configured so that the on-vehicle device can automatically detect a specific frequency of the railroad (rail), installation of the ground device was unnecessary.

In other words, if the ground equipment is an ATS system, the onboard equipment for detecting ground signals should be an ATS system. On the contrary, if the ground equipment is an ATS system, the onboard equipment should also be an ATC system accordingly. If you enter the railroad section (Seoul Subway Line 1, Line 2, Metropolitan Subway, etc.) that have ground equipment with ATC system (Seoul Subway Line 3, Line 4), you cannot use the onboard equipment as it is. It is reluctant to use it, and it is difficult to replace the ground equipment with another system. Therefore, in order to fit the vehicle equipment to the ground equipment, it is necessary to separately equip each vehicle equipment system according to the ground equipment system.

The present invention is to solve this inconvenience, and to provide a train automatic control device that can selectively use the ATC or ATS vehicle system, regardless of the vehicle installation system, it will be described in detail as follows.

Install a Cab Signal Pick-up Coil (5) on the rail (rail) at a distance of 10cm to 15cm, and set it within a fixed frequency (990Hz) generated by the ground equipment (1). The converted frequency (3.2 Hz-16.8 Hz), which is converted according to the situation, receives the demodulated frequency, amplifies the signal from the receiving amplifier 6 and inputs the frequency detector (code decoder microprocessor 7) to the set speed among the demodulation frequencies. Select the ATC on-vehicle device that detects the corresponding conversion frequency and the ATS on-vehicle device that allows the constant frequency operation band pass filter (4), which is oscillated, to receive the signal controlled by the conventional terrestrial coil controller at the on-board coil connector. By displaying the two speeds on the display 10 by comparing the F ₁ -F _n and the actual speeds S ₁ -S _n of the train detected by the real speed detector 12 in the comparison decision logic circuit 9. Meanwhile, The comparison result is to be applied to the warning sound generating device 11 or the braking device.

At this time, the conversion frequency demodulated to the fixed frequency generated by the ground equipment (1) is to match the limit speed that the train can proceed as shown in the following table.

Frequency train speed

3.2 Hz 25 km / h or less

5.0 25

6.6 40

8.6 60

10.8 70

13.6 80

16.8 100

The operation of the frequency detector 7 for detecting the demodulation frequency of the ATC system and the band pass filter 4 for detecting the oscillation frequency of the ATS system are selected by a switching switch 8 composed of a selection switch circuit. In another embodiment, signal selection is automatically performed to automatically detect an ATS oscillation signal if a continuous demodulation frequency (rail frequency) of the rail (rail) (at least a fixed frequency (990 Hz + code signal)) is not received for a predetermined time (for example, about 10 seconds). A changeover switch 8A can also be used.

One embodiment of the switching circuit of the present invention configured as described above is configured as shown in Figure 5, when entering the ATS section from the ATC section, the CNSR operation output from the ATC device, or the switching switch (8) Is set to the ATC position, ATCR ₁ and ATDR ₂ in the ATC device are operated. When Ro is detected in the ATC section, NSRR ₁ (contact a) is released and STRR (contact a) is operated. In this state, when the S signal is detected in this state, NSRR ₁ (a contact) is operated, and CgSR is operated along with CgRR in which the operation is maintained to generate an alarm sound.

At this time, CgSRR (a contact) is operated with Brake Notch position B4, LOCR is operated, switch the switch 8 to ATS position, release CSNR, CgRR, CgSR, LOCR and switch to ATS. Let's go.

The present invention, which is operated by the circuit operation of the above embodiment, switches the switch 8 to the ATC to match the vehicle installation in the ATC section when the train operates a railroad system in which the ground equipment is configured with the ATC or ATS system. When operating in the laid state, it receives and receives the frequency (fixed frequency + code frequency) that continues to flow on the rail (rail) while the signal pick-up coil 5 installed on the vehicle passes between about 10 cm and 15 cm above the rail (rail). Amplify in the amplifier (6). The frequency detector 7 detects the converted frequency (3.2 Hz-16.8 Hz) demodulated between the fixed frequencies of 990 Hz and inputs the respective substitute frequency signals F ₁ -F _n into the speed comparison logic circuit 9.

In addition, when the train enters the ATC section, the switch 8 is operated by the ATS to operate the band pass filter 4. At this time, in case of ATS system, new frequency is memorized again while current frequency is memorized in a separately installed memory, so the current state is maintained until a new frequency change can be used as a fashion record. Since the oscillation frequency for monitoring oscillates and the ground frequency is sensed by the sensing tester and operates similarly to the frequency detector 7, the corresponding signals F ₁ -F _n are also input to the comparison logic channel 9.

On the other hand, since the current speed of the vehicle is detected and the signals S ₁ -S _n signaled at each stage are input to the comparison logic circuit 9, the signals F ₁ -F _{n according} to the previous reception frequency and the actual speed signal S of the train. ₁ -S _n is compared and judged by a preprogrammed microprocessor to speed up the timer for a certain period of time, and stop the train by a relay if it does not decelerate or stop despite the alarm for a certain period of time. do.

In another embodiment of the present invention, since the on-board signal pick-up coil 5 is configured to continuously detect a demodulation frequency (minimum fixed frequency 990 Hz + code signal), the ATC or ATS section can be freely operated.

Looking at an embodiment of the above-described bar as follows.

Example

As the ground facilities are composed of the ATS system in the national railway section of the metropolitan area and subway lines 1 and 2, grounders are installed in each section of the railway rail, and signals are issued by ground signals, and the ground equipment is installed in the sections of subway lines 3 and 4. Because it is composed of, constant frequency (fixed frequency 990Hz + conversion frequency) flows continuously on railway rail.

Therefore, when operating a national railway or subway in the metropolitan area, a switching switch 8 is installed between the band pass filter 4 of the car box and the frequency detector 7 of the signal pick-up coil of the vehicle, and the grounded person is received in the ATS section. The bandpass filter 4 is operated through the facility and the oscillator 3, and in the ATC section, the on-board signal pickup coil 50 receives the frequency of the rail (rail) and passes through the receiver amplifier 6 to the frequency detector 7. By enabling the operation of the vehicle installation can be selectively used in the ATS section or ATC section.

Claims (2)

The ground signal generated from the ground coil is detected by the receiver of the onboard device through a conventional ground signal controller, and the ground signal (code) is demodulated at a specific frequency and loaded on a rail to continuously generate ground signals. In the ATC device that detects this from the vehicle and controls the train, the signal (F ₁ -F _n ) or the vehicle signal pick-up obtained by detecting the ground signal of the oscillation frequency by the oscillator in the ATS system with a known band pass Pallet 4 The amplified demodulation frequency received by the coil is amplified, and the code signal F ₁ -F _n detected by a known frequency detector 7 is switched with a manual switching switch 8 together with an alarm. signal (S ₁ -S _n) and compared to determine in the logic circuit (9) with a known ATS for ATC and that an alarm or an emergency speed of the train, or operating the emergency brake according to the situation of the comparison value The vehicle control apparatus, characterized in that the target device configured to be selectively used. 2. The automatic switching switch 8A is provided between the oscillator 3 and the band pass filter 4 or between the receiving amplifier 6 and the frequency detector 7 so as to provide an ATC ground signal on the vehicle. The vehicle control device is configured to automatically switch to the ATC receiving device if the signal is not received (detected) for a predetermined time and automatically detects the ATC ground signal having the demodulation frequency.