JP2540112Y2 - Vehicle detection 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 vehicle detection device in the vicinity of a station in a new transportation system in which a vehicle is moved by using a driving rope, and more particularly to improvement of reliability of vehicle detection and simplification of equipment. It is.

[0002]

2. Description of the Related Art In a new transportation system in which a vehicle is moved by using a driving rope, the distance between the vehicles that the vehicle travels by squeezing the driving rope during normal driving is determined. Although fixed, the distance between the vehicles changes when the vehicle is unloaded from the driving rope and driven by the linear motor near the station. Therefore, it is necessary to accurately detect the traveling position of the vehicle near the station to prevent a rear-end collision or the like. 2. Description of the Related Art A conventional vehicle detection device for detecting the position of a vehicle detects a plurality of vehicles such as a Y section, an X section, a B section, an A section, and a Z section as shown in FIG. A section is provided, a loop coil 41 is laid for each vehicle detection section, and an inspection signal transmitter 44 is connected to the entrance side of the vehicle 1 of each loop coil 41 via a matching transformer 42 and a distributor 43, A receiver 46 is connected to the exit side of each loop coil 41 via a matching transformer 45. An inspection signal of a predetermined frequency is transmitted from an inspection signal transmitter 44 to each loop coil 41 via a distributor 43 and received by a receiver 46.

On the other hand, a power supply 47, a transmitter 48, and an antenna 49 are mounted on the vehicle 1, and a continuous wave having a constant frequency output from the transmitter 48 is transmitted to the ground via the antenna 49.

In the vehicle detection device having the above-described structure, when the vehicle 1 does not enter the vicinity of the station, the distributor 4
The inspection signal sent from 3 to each loop coil 41 is received by the receiver 46 on the advancing side as it is, detected, amplified and rectified to operate the relay, and the vehicle 1 enters each vehicle detection section. Not reveal that. When the vehicle 1 approaches the vicinity of the station and enters, for example, the X section, and the loop coil 41 of the X section receives the continuous wave transmitted from the vehicle 1, the receiver 46 provided on the exit side of the X section. When the vehicle receives the continuous wave from the vehicle 1, the detection output becomes zero, the relay is restored, and a suppression control system for clarifying that the vehicle 1 has entered the X section is adopted.

When the control signal transmitter 44, the distributor 43, and the receiver 43 connected to each loop coil 41 break down, or the loop coil 41 is disconnected, the relay connected to the receiver 43 is de-energized. The section is kept in line so that fail-safe property is ensured.

[0006] Alternatively, a receiver and a relay are combined with a ground element constantly oscillating at a constant frequency at a boundary point of each vehicle detection section. When the vehicle 1 enters the vehicle, the frequency of the ground child is changed to the frequency of the vehicle child and the relay is restored, detecting that the train 1 has entered and detecting the running position of the vehicle 1. I have.

[0007]

As described above, the conventional vehicle detection device has a power supply and a transmitter mounted on the vehicle side,
There is a disadvantage in that the on-board device mounted on many vehicles is complicated due to the mounting of the on-board child.

The present invention has been made to solve such a disadvantage, and has as its object to provide a vehicle detecting device capable of reliably detecting the running position of a vehicle with a simple configuration.

[0009]

A vehicle detecting device according to the present invention comprises a plurality of vehicle detecting sections (Y, X, B, A) provided near a station of a vehicle moving by squeezing a driving rope. ,
Z) are provided as a pair at the boundary point on the approach side, and are normally closed.
Proximity switch (YP
-1, YP-2 to ZP-1, ZP-2)
Switches (YP-1, YP-2 to ZP-1, ZP-2)
A control device (3) to which the points are connected,
(3) One vehicle inspection system for each vehicle detection section (Y to Z)
Knowledge unit (4) and two systems of vehicle detection unit (5) and mismatch detection
(6), and corresponds to the vehicle detection unit (4) of one system.
At the boundary point on the approach side of the vehicle detection section (B)
Connected to the contact point of the proximity switch (BP-1)
A signal indicating that the vehicle has entered the relevant vehicle detection section (B)
(BIN-1) that sends out the vehicle and the vehicle in front of the vehicle
Sends a signal indicating that the vehicle has advanced from the detection section (X)
Relay (X, YOUT-1) and vehicle inspection corresponding to the vehicle
A trajectory that sends out a signal indicating that it is on the knowledge section (B)
A relay (BTR-1) and a two-system vehicle detector
(5) is the boundary on the approach side of the relevant vehicle detection section (B)
To the contact of the other proximity switch (BP-2)
The vehicle has entered the relevant vehicle detection section (B)
Relay (BIN-2) that sends a signal indicating that
Indicates that both vehicles have advanced from the preceding vehicle detection section (X)
The relay (X, YOUT-2) that sends out the signal and the vehicle
A signal indicating that the vehicle is in the corresponding vehicle detection section (B)
With the orbit relay (BTR-2) that sends out
The detection unit (6) includes a vehicle detection section (B) corresponding to the vehicle.
One-system vehicle detection unit that sends out a signal indicating that there is a train
(4) and the track relay (BT) of the two systems of vehicle detectors (5)
R-1 and R-2) when the coil is excited
In the vehicle detection section (Section B) to which the series circuit and the vehicle correspond
One and two gauges that send a signal indicating that
When the coil of the road relay (BTR-1, 2) is not excited
Discrepancy detection when a series circuit of operating contacts is connected in parallel
Relay (FB) and each vehicle detection section (Y section to Z section)
Of non-coincidence detection relays (FY to FZ)
And an alarm relay (F) connected to each series circuit.
It is characterized by comprising a normally closed contact of a relay.

[0010]

In this invention, a plurality of vehicle inspections near the station are performed.
The proximity switch provided in pairs at the boundary point on the approach side of the knowledge section detects that the vehicle has entered, de-energizes the track relay, maintains the non-excited state, and the vehicle is on the corresponding vehicle detection section. An on-rail signal indicating that the vehicle is being detected is output, and on-rail detection in the vehicle detection section is performed. Also, if the vehicle detection section
From the exit side
Detects the absence of a train.

In addition, it is confirmed whether the operating states of the plurality of proximity switches provided in pairs at each boundary point are identical or not.
When the operations of the proximity switches of the set do not match, an abnormal signal is output to ensure safety.

[0012]

FIG. 1 is a layout diagram showing ground equipment provided in a vehicle detection section near a station according to an embodiment of the present invention. As shown in the figure, in the vicinity of the station, a section A including the station, sections B, X, and Y provided on the entry side of the vehicle 1 in the section A and a section A provided on the vehicle exit side are provided. And a plurality of vehicle detection sections in the Z section. For example, a pair of proximity switches YP-1 and YP-2 are provided at the boundary point on the approach side of each vehicle detection section.
.. ZP-1 ZP-2 are provided along the track 2 of the vehicle 1 which moves by gripping the driving rope.

The pair of proximity switches YP-1, YP
Each of P-2 to ZP-1 and ZP-2 has a normally closed contact, and each contact is connected to the control device 3. The control device 3 includes, for example, one system of a vehicle detection unit 4, two systems of a vehicle detection unit 5, and a mismatch detection unit 6, as shown in a circuit configuration diagram of a section A and a section B of FIG. 2.

Relays connected to the contacts of the proximity switches BP-1 and BP-2 are respectively connected to the vehicle detecting sections 4 and 5 in the vehicle detecting section, for example, the section B, and send out a signal indicating that the vehicle 1 has entered the section B. -BIN-1 and BIN-2, relays -X and YOUT-1 and -2 for sending signals indicating that the vehicle 1 has advanced from the X section and Y section, and signals for indicating that the vehicle 1 is on the B section. Orbit relays BTR-1 and BTR-2. The discrepancy detecting unit 6 includes a track relay BTR.
-1 and 2 are connected in series when the coils of the BTR-1 and BTR-1 and the coils of the BTR-1 and 2 are non-excited. -FB and the mismatch detection relay of each section -FY ~
And an alarm relay F connected to a series circuit of FZ contacts. And the track relay of the vehicle detectors 4 and 5 -BTR-
Each of the relays of the mismatch detecting unit 6 includes a normally closed contact.

Also, the proximity switches YP-1,2 to ZP-
In order to clarify the detection of the vehicle by 1 and 2, the vehicle is provided with a detection iron plate of a predetermined size.

The operation of the vehicle position detecting device constructed as described above when the vehicle 1 enters a train detection section, for example, section B, will be described with reference to a time chart of FIG.

When the vehicle 1 enters the section B, the proximity switch BP-1 provided on the entry side of the section B is activated, and the normally closed contact BP-1 connected to the vehicle detection unit 4 of one system is opened. That is, the coil of the relay BIN-1 is de-energized to restore the relay BIN-1. This relay BIN-1 is restored and the contact BI connected to the orbit relay BTR-1
When N-1 is opened as shown in FIG.
Orbit relay -BTR-
1 and the orbit relay BT as shown in FIG. 3 (d).
An on-rail signal in section B is output from R-1. When the vehicle 1 passes the position of the proximity switch BP-1 in this state, the contact BP-1 of the proximity switch BP-1 is closed and the relay BIN
-1 operates, but the contact of the relay BIN-1 and the normally open contact BOUT-1 of the relay BOUT-1 are connected in series to the coil of the orbit relay BTR-1. The coil of BTR-1 maintains the state of non-excitation.

When the vehicle enters section A in this state, A
The proximity switch AP-1 provided at the entry end of the section operates to de-energize the coil of the relay AIN-1 and set the relay AI
Restore N-1. When the relay AIN-1 is restored, the coil of the relay BOUT-1 is excited as shown in FIG. By this excitation, as shown in FIG. 3C, the contact BOUT-1 connected in series to the coil of the track relay BTR-1 is closed, the coil of the track relay BTR-1 is excited, and the on-rail signal in section B is excited. Cut off. Therefore, it is possible to accurately detect the presence of the vehicle 1 in the section B, to control the speed of the vehicle 1 moving by unloading the driving rope, and to unload the driving rope. It is possible to prevent each of the moving vehicles from colliding. In addition, the presence signal from the vehicle detection section
Check that the output has not been made, and make sure that no
Detection can be performed.

The two-system vehicle detector 5 also has a proximity switch BP.
When -2 operates, the same operation as above is performed. And 1
The output signals of the track relays BTR-1 and BTR-1 of the vehicle detection unit 4 of the system and the vehicle detection units 5 of the two systems are always sent to the mismatch detection relay FB of the mismatch detection unit 6. The output signals of the orbit relays BTR-1 and BTR-1 of the one-system vehicle detector 4 and the two-system vehicle detector 5 sent to the mismatch detection relay FB are output from the proximity switches BP-1 and BP-2 and the relay BIN. If they do not match due to a failure such as -1, 2 or the like, the coil of the mismatch detection relay FB is de-energized and the mismatch detection relay FB is restored. When the mismatch detection relay FB is restored, the alarm relay F
Is turned off, and an abnormal signal is output from the alarm relay F. As described above, since the operation states of the one-system vehicle detection unit 4 and the two-system vehicle detection unit 5 are constantly checked, and an abnormal signal is sent when the operation states do not match, the reliability of the vehicle detection device is improved. Can be.

Also, the track relay BT of the vehicle detectors 4 and 5
Since the relays of the relays R-1 and R2, etc. and the mismatch detector 6 are normally closed, even if the power supply of the vehicle detectors 4, 5 and the like is cut off, the on-line signal and the abnormal signal are output. The vehicle 1 can be operated safely.

[0021]

As described above, the present invention detects that a vehicle has entered by using a pair of proximity switches provided at each boundary point on the approach side of the vehicle detection section near the station, and activates the track relay. Since it was made to output the on-rail signal indicating that the vehicle was on the corresponding vehicle detection section with no excitation,
It can accurately detect the presence of a vehicle in each vehicle detection section, control the speed of the moving vehicle by unloading the driving rope, and unload the driving rope. It is possible to prevent each of the moving vehicles from colliding. In addition, the on-board
No output is confirmed and the
On-line detection can be performed.

Further, since the approach of the vehicle into each vehicle detection section is detected by the proximity switch, it is not necessary to mount other equipment on the vehicle other than the iron plate for detection, and the on-board device can be simplified. Can be.

Further, it is confirmed whether or not the operation states of the plurality of proximity switches provided at each boundary point are one set.
Since an abnormal signal is output when the operations of the proximity switches of the set do not match, the vehicle can be driven safely, and the reliability of the vehicle detection device can be improved.

Further, since the track relay and the like are constituted by normally closed contacts, the on-board signal and the abnormal signal can be output even when the power is cut off, so that the vehicle can be operated safely. .

[Brief description of the drawings]

FIG. 1 is a layout diagram showing ground equipment provided in a vehicle detection section near a station according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a control device of the embodiment.

FIG. 3 is a time chart showing the operation of the embodiment.

FIG. 4 is a configuration diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle 2 Track 3 Control device AP-1 to ZP-2 Proximity switch ATR-1 to ZTR-2 Track relay FA, FB mismatch detection relay

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of vehicle detection sections (Y, X, X) provided near a station of a vehicle moving by squeezing a driving rope .
B, A, Z) are provided in pairs at the boundary point on the approach side of
Proximity switch that has normally closed contacts and detects vehicle passage
(YP-1, YP-2 to ZP-1, ZP-2)
Proximity switches (YP-1, YP-2 to ZP-1, ZP-
2) a control device (3) to which the contact point is connected, and the control device (3) has one system for each vehicle detection section (Y to Z).
Vehicle detection unit (4) and two systems of vehicle detection unit (5)
A coincidence detection unit (6), and a vehicle detection section corresponding to the one-system vehicle detection unit (4).
One proximity switch provided at the boundary point on the approach side of (B)
(BP-1) is connected to the contact point and the vehicle
Relay that sends out a signal indicating that it has entered the knowledge section (B)
-(BIN-1) and the vehicle detection section (X) where the vehicle is ahead
(X, Y) that sends out a signal indicating that
OUT-1) and the vehicle detection section (B) corresponding to the vehicle.
Track relay (BTR) that sends out a signal indicating that
-1), and the corresponding vehicle detection section is included in the two systems of vehicle detection units (5).
The other proximity switch provided at the boundary point on the entry side of (B)
(BP-2) is connected to the contact point and the vehicle
Relay that sends out a signal indicating that it has entered the knowledge section (B)
-(BIN-2) and the vehicle detection section (X) where the vehicle is ahead
(X, Y) that sends out a signal indicating that
OUT-2) and the vehicle detection section (B) corresponding to the vehicle.
Track relay (BTR) that sends out a signal indicating that
-2), and the vehicle detection section corresponding to the vehicle is provided in the mismatch detection unit (6).
(B) One car that sends a signal indicating that it is on the track
Track relay of both detectors (4) and two systems of vehicle detectors (5)
-Operates when the (BTR-1, 2) coil is excited
Vehicle detection section (B
1) and 2) that send out a signal indicating that
The coil of the track relay (BTR-1, 2) of the system is not excited
When the series circuit of the contacts operating when
The coincidence detection relay (FB) and each vehicle detection section (Y section to
Direction of the contact of the mismatch detection relay (FY to FZ) in the Z section)
An alarm relay (F) connected to the column circuit, each series
A vehicle detection device , wherein a circuit is constituted by normally closed contacts of each relay .