JPS61232962A - Overtravelling protective device - 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 [Field of Industrial Application] The present invention relates to a protection device for preventing a vehicle from moving beyond a stopping position t.

[Conventional technology]

Generally, when a train crashes, it is necessary to prevent the vehicle from moving beyond the stop position at a station, etc., by moving the car forward of the stop position for a distance of 11 minutes. ? At the same time, the vehicle speed is checked inward from the stop position, and if the vehicle speed is below the specified value, ATC (
Automatic Train C.

(ntrol-) signal is maintained at the current speed command state, but if the vehicle speed exceeds the specified speed, the ATC signal is set at the stop command state and braking is forcibly performed.
It is assumed that the vehicle will stop within the travel allowance distance.

[Problem that the invention seeks to solve]

However, in the past, switching of the ATC (No. 1) was always required, which caused the problem of complicating the device configuration in terms of control.

[Next method to solve the problem]

In order to solve the above-mentioned problem, the present invention is constructed by the following means.

In other words, there is a signal transmitting means disposed along the path along which the vehicle travels, and a control signal transmitting means that commands the vehicle to stop when there is no signal, and commands the traveling speed when there is a signal. A control transmitting means for transmitting signals via the transmitting means, a driving means for detecting the vehicle via the transmitting means, and a receiving means for receiving control signals. a vehicle speed detection means for detecting the speed of the vehicle according to the time required for the drive means on the vehicle to pass nine reference distances; and a transmission means provided near and in front of the vehicle speed check position. The vehicle is equipped with a dividing point, nine control transmitting means connected to the transmitting means inward from the dividing point, and means for connecting all the dividing points when the vehicle speed detecting means detects a speed below a specified speed.

[For production]

As a precaution, no control signal is transmitted in front of the dividing point F, and if the vehicle speed detection means detects that the specified speed has been exceeded, the dividing point will not be connected. When the vehicle enters the vehicle, the receiving means detects that the vehicle is intact.
The vehicle will be forced to stop.

On the other hand, if the vehicle's speed is below the specified speed, the dividing point is connected and the control signal is passed to the transmission means in front of this point.
The vehicle is allowed to proceed at the current speed.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

FIG. 1 is a block diagram of the entire configuration.A vehicle 1 having insulated wheels such as rubber tires is provided with antennas 11 to 13 downwardly in the front and rear.
is connected to an ATC receiver (hereinafter referred to as RXa) 14, and constitutes a receiving means, and the antenna 12 is connected to a check-in transmitter (hereinafter referred to as TXi) 15, which constitutes the entire driving means. On the other hand, the antenna 13 is connected to a checkout transmitter (hereinafter referred to as TXo) 16, and the TXi 15 receives the frequency fs via the antenna 12.
The RXa14 transmits all the check-in signals of the frequency f! through the antenna 11. After receiving the ATC signal, the control output DSi is sent out in response to the ATC signal to control the progress of the vehicle 1.

In contrast, loop antennas 211 to 214, 21a, and 21b are extended along the cane in the path of the vehicle 1 and are arranged as transmission means, and these are divided into block sections IT to 4T. In addition, a vehicle speed check position fj71VSt provided inward from the vehicle stop position SP
, near and in front of VSt are dividing points DVI, DV2
Loop antennas 22+ and 22g are installed at the vehicle speed reference positions VS+ and VS2, respectively, over reference distances tl, t, and 22g corresponding to the specified vehicle speed.
is deployed, and through this a vehicle speed detection receiver (hereinafter referred to as
If RXs) 23+ and 23g receive the check-in signal of the same wave number f1 and can receive it for a certain period of time or more,
When the vehicle speed is below a specified value, the relays 5CHI and 5CH2' are individually driven to perform self-holding, thereby forming a vehicle speed detection means.

If relays 5CHI and 5CH2 operate, these contacts 5CH1t and 5CH1! , 5CH2t, and SCH2g are switched as connection means, and each is divided into dividing points DV, , D
V.

However, in the recovery state, each loop antenna 21x
~214. Matching transformer MT to the front end side of 21a and 21b
The loop antennas 21g and 21ak are connected to the output of the TXr 24g corresponding to section 3T among the friend reference signal transmitters (hereinafter referred to as TXr) 24t to 244, which are connected to each other via MT4, MTa, and MTbk. .

Further, on the inner end side of each loop antenna 212 to 214, ATC transmitters (hereinafter referred to as TXa) 25w to 254 that transmit an ATC signal as a control signal at a frequency fz via three-turn transformers H2 to Ha' are installed. Along with being connected,
Detection receivers (hereinafter referred to as RXd) 262 to 264 that receive a signal of frequency fl and detect the vehicle 1 are connected, and these constitute a control transmission means and a vehicle detection means. The same applies.

In addition, RXa 14, TXt15, TXo16, TXr
24x~244, TXa 25z~254, RXd26s~264, etc. are similar to those disclosed in "Vehicle Detection Device" (Japanese Patent Application No. 55-85077) filed separately by the applicant, and TXr24+~244. From tRXd26s onwards, a carrier wave with a frequency fl modulated by a square wave or the like is transmitted as a reference signal, and in the tRXd26s and older versions, envelope detection is performed with amplitude limitation, and furthermore,
Detects all Schmitt triggers, etc. above a certain level,
Each of the relays 2TR to 4TR' is operated, and when a check-in signal f1 of frequency f1 is applied to this state via the loop antennas 212 to 214, the total amplitude of the receiving signal 4 increases, and the reference signal The six square wave components are removed by the amplitude limit, the envelope detection output disappears, and the relays 2TR to 4TR are restored, thereby detecting that the vehicle 1 has entered each of the sections 2T to 4T.

Mayu, a checkout signal with the same wave number f3 is transmitted from TXO16, and corresponding verification signals similar to those described above are also transmitted from TXr241 to 244, and these are also received and checked by RXdZ6s to 264. While the out signal is given, relays 2TR to 4TRt-
It is supposed to last one day.

On the other hand, TXa25z to 254 are given a control signal C8 from a control logic section omitted in the diagram, and each relay 2T
Based on the judgment of the control logic section according to the situation of R~4TR, the carrier wave is modulated by a signal that commands the traveling speed, and then
This is transmitted via T-loop antennas 21 to 214,
The traveling speed of vehicle 1 is controlled, but if there is no signal, it will indicate a stop, and if this happens, RXa1
4 is the control output DSK), which performs forced operation.

Figure 2 is a block diagram of RXs 231 and 23.
The unnecessary branch is removed, the output is amplified by the full amplifier 32, and then converted into DC in the detection circuit 33, which then drives the relay RY. When this operates, the contact RY
+ turns on, relay SCH also operates, and RXdZ6
It is assumed that contact 3TRr is on even if relay 3'l'R of m is being restored or vehicle is being detected.
If the vehicle 1 advances from the section of the loop antenna 213+ 21a, 21b and the relay 3TR is activated after performing all F self-holding operations at its own contact point 5CHs, the self-holding route will be cut off and the vehicle will be restored.

FIG. 3 is a timing chart showing the operating status of FIG. Given, loop antenna 22+
, 22z length 1. , 1. is determined according to the specified speed, so the time width t1 of signal (a) is
If this response time is equal to or longer than 1 s, which is determined by the delay time of the r wave generator 31 to the detection circuit 33 and the operation delay time of the relay RY, then the vehicle 1 is at or below the specified speed. and relay RY(b
) and 5CH(c) operate.

On the other hand, if the speed of car [1 exceeds the regulation, (
In the evening of B), the snow covered the time width of signal (a), and the response time was t8.
Therefore, relay RY(b) work 5ca(c) does not operate.

When vehicle 1 enters section 3T, RXd2
63, this is detected and relay 3TR is restored, and RXa14 receives A from TXa25B.
The speed reaches the TC signal, and gradually decelerates as it approaches the stop position SP, but the speed control position VSl, V
At SI, the vehicle speed is RXs 23+.

If F is detected at 232 and fails below the specified speed, relays 5CH1 and 5CH2 will then operate and self-hold, and contacts 5CHII, 5CH12 and 5CH2 will be activated.
1, 5CH22VCL, division point DVt, DVz
The ATC signal from the TXa 25g is passed through the loop antennas 21a and 21b to the loop antennas 21a and 21b, and the vehicle 1 moves forward while receiving the ATC signal kRXa 14. The motor smoothly stops at the stop position SP according to the command.

Regarding the above, if the vehicle exceeds the specified speed when passing through speed check positions VSI and VSm, relay 5CH1,
5CH2 does not work 1. Loop antenna 21a.

21b is not given an ATC signal and is in a no-signal state, and in response to this, RXa14 outputs the control output DS.
At the same time, TxtL254 keeps the ATC signal in a no-signal state, so the stop position SP
The vehicle 1 moves forward smoothly and safely stops within a predetermined travel margin distance.

In addition, the stop position SP and the vehicle speed check position VSt, vs.

The distance from
In addition, it may be determined according to the transmission characteristics after braking.

Therefore, industrial protection can be achieved without particularly switching ATC signals, and in new transportation systems, loop antennas 22t, 22m, RXs23 east, 23
It is only necessary to provide a dividing point DVs, DVs, etc.
The configuration is simplified.

In addition, if the F, RXi 23t, and 2h cannot receive the check-in signal due to a failure, the loop antennas 21a, 2
Section 1b is in a state where there is no signal for the ATClir, and safety can be ensured as soon as the stop control is carried out.

However, the vehicle speed check position VS and the dividing point DV may be set at a single location or at three or more locations depending on the conditions.
Using the track circuit as a transmission means instead of 1b, vehicle 1
The same applies if the track circuit and axle short circuit are used together with TXi15, TXolB, and loop antennas 221 and 22g. Various modifications are possible as long as you choose.

〔Effect of the invention〕

As is clear from the above explanation, if the present invention is L, AT
Industrial protection can be performed without switching control signals such as C signals, the configuration can be simplified, and remarkable effects can be obtained in various transportation systems.

[Brief explanation of drawings]

The figures show an embodiment of the present invention; FIG. 1 is a block diagram of the entire system, FIG. 2 is a 1072 diagram of the vehicle speed detection receiver, and FIG. 3 is a timing chart showing the operating status of FIG. 2. 1φ...Vehicle, 11-13...Antenna, 14m
--*RXa (ATC receiver), 15---・TXi
(Check-in transmitter), 16...Excellent TXo (Check-out transmitter), 2b to 214. 21a, 21b, 22I, 22g """' Loop antenna, 23+, 232...RXs (vehicle speed detection receiver), 252 to 254 ・"-・TXa
(ATC transmitter), 262-264...RXd (
detection receiver), 2TR to 3TR, 5CH1, 5CH2,
RYφ number/Contest Leh, 5CH1t, 5CH
1s, 5CH2t, 5CH double...
Contact, SP...Vehicle stop position, VSl, VSl
...Vehicle speed check position, DV l, DVs...
...Dividing point.

Claims (1)

[Claims] A signal transmission means disposed along a path along which a vehicle travels; and a control signal that instructs the vehicle to stop when there is no signal and commands the traveling speed when there is a signal, through the transmission means. and a vehicle detection means for detecting the vehicle via the transmission means on the ground, a driving means for causing the vehicle detection means to perform detection, and a receiver for receiving the control signal. and means for detecting the speed of the vehicle according to the time required for the drive means to pass through a reference distance provided to a vehicle speed reference position inward from a vehicle stop position in the passageway. means, a dividing point of the transmitting means provided near and in front of the vehicle speed check position, the control transmitting means connected to the transmitting means inward from the dividing point, and the vehicle speed detecting means configured to detect a specified speed. An overrunning protection device comprising: means for connecting the dividing points when detecting the following: