JPH0611849Y2 - Traveling control device for carrier vehicles - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention transmits various signals from the ground side to a carrier truck such as a monorail truck to confirm the location of the device,
The present invention relates to a traveling control device for a carrier vehicle that causes the vehicle to travel or to perform a predetermined work when stopped.

[Conventional technology]

In factories and the like, a carrier truck such as a monorail truck may be installed above the building in order to supply parts and convey products, but as shown in Fig. 2, a monorail that forms one closed loop. 3 carrier vehicles D ₁ , D ₂ , D
₃ is provided, and the carriages D ₁ , D from the ground station as the control unit are provided.
₂ and D ₃ are respectively given control commands to convey carts D ₁ and D
_{When controlling so that 2} and D ₃ are individually run or stopped to perform a predetermined work, a control trolley wire provided along the monorail is provided, for example, in three sections A, B,
C, and each section A, B, C is electrically insulated from each other, and the carrier vehicles D ₁ , D ₂ , D ₃ in each section A, B, C are located relative to the ground station. It is necessary to send a "carrying signal" to let the ground station recognize this and to make sure that no two or more carrier vehicles are present in one section.

FIG. 3 shows a configuration example of a control device for driving a carrier vehicle with three-phase AC power. In FIG. 3, reference numerals 1, 2, and 3 denote three power sources connected to a three-phase AC power source (not shown). Supply trolley wire 4, reference numeral trolley wire for "signal with carriage" common trolley wire 5, reference trolley wire for "signal with carriage", 6 and 7 are signal trolley wires for transmitting signals for controlling the carriage M . And the trolley lines 5, 6 and 7 are the sections A, B and C.
Are electrically insulated from each other at their respective boundaries.

8A, 8B and 8C are trolley wires 6 for signals in sections A, B and C
A multiplex transmission transmitter connected between 7 sends out a signal for controlling the carriage M, and the control signal has a high frequency of 125 kHz, for example. Reference numerals 9, 10, 11, 12, 13, and 14 are transmitter-side connection lines that connect the signal trolley lines 6 and 7 in the sections A, B, and C to the multiplex transmission transmitters 8A, 8B, and 8C, respectively. .

Reference numeral M denotes a carrier truck, in which a traveling motor 15, a multiplex transmission receiver 16 for receiving control signals from the multiplex transmission transmitters 8A, 8B, 8C, and a multiplex transmission receiver 16 (not shown) are provided. It is equipped with a handling mechanism for handling parts and products in response to signals from. 16A is a signal line for the traveling motor 15.

Reference numerals 17, 18, and 19 are current collectors that are in sliding contact with the power supply trolley wires 1, 2, and 3, respectively, and are connected to the traveling motor 15 via power connection lines 20, 21, and 22. 23 and 24 are current collectors that come into sliding contact with the signal trolley wires 6 and 7, respectively.
It is connected to the multiplex transmission receiver 16 via receiver side connection lines 25 and 26. 27 and 28 are current collectors that are in sliding contact with the common trolley wire 4 for "signal with carriage" 4 and the trolley wire 5 for "signal with carriage", and these collectors 27, 28 are transport carriages M.
It is short-circuited inside by the connection line 29.

30A, 30B, 30C are relays, one end of which is connected to the trolley wire 4 for "signal with trolley" respectively, and the other end of which is connected to the trolley wire 5 for "signal with trolley" in sections A, B and C, respectively. is there.

Thus, in the control device having the above-mentioned configuration, as shown in FIG. 3, when the carriage M is in the section B, the "trolley present signal" common trolley wire 4 and the "carriage present" are present only in the section B. Since the "signal" trolley wire 5 is short-circuited, only the relay 30B operates and the other relays 30A and 30C do not operate. Therefore, on the ground side, it is understood that the carrier truck M is in the section B. Then, at this time, by sending a control signal via the multiplex transmission transmitter 8B, the transport carriage M can be caused to perform a predetermined operation.

[Problems to be solved by the invention]

However, as is clear from the above description, in the conventional control device, since the driving power, the control signal, and the "carrying signal" are transmitted by separate trolley lines 1 to 7, respectively Trolley wire required,
It is not economical because it is impossible to use a set of five integrated trolleys on the market.

The present invention has been made with the above matters in mind, and its purpose is to provide a high-frequency control signal emitted from the control station to the carrier vehicle when the carrier vehicle is controlled by the control station on the ground side. , By transmitting the DC current for obtaining the "carriage presence signal" that informs the existence of the carrier truck with a common trolley wire, the number of trolley wires used is reduced, and a commercially available integrated trolley is used. An object of the present invention is to provide a travel control device for a carrier vehicle that can be used as it is.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides a traveling control device for a carrier vehicle having a multiplex transmission transmitter and a multiplex transmission receiver, wherein the multiplex transmission transmitter transmits a high frequency control signal for traveling the transportation vehicle. In addition, it receives a DC position signal, has a relay, a capacitor on the transmitter side, and a choke coil on the transmitter side, transmits both the high frequency control signal and the DC position signal, and is electrically insulated from each other. The transmission line is connected to each section of a pair of signal trolley wires that have multiple sections, and the multiplex transmission receiver is mounted on the carrier to receive the high-frequency control signal and the DC position. It transmits a signal and has a receiver-side capacitor, a DC power supply, and a receiver-side choke coil, and is connected to the signal trolley wire via the receiver-side connecting wire and current collector. Special It is set to.

[Action]

In the above configuration, for example, as shown in FIG. 1, when the transport vehicle M is in the section B, the DC power source 32 in the transport vehicle M is used.
Of the DC current flows through the signal trolley wires 6 and 7 only to the relay 30 corresponding to the section B, whereby only the relay 30 operates. At this time, the DC current from the DC power supply 32 is blocked by the capacitors 31 and 34 in the multiplex transmission receiver 16 and the multiplex transmission transmitter 8B.
It does not flow into 6,8B.

Then, the high frequency control signal from the multiplex transmission transmitter 8B is transmitted to the multiplex transmission receiver 16 in the carrier truck M via the signal trolley lines 6 and 7, whereby the carrier truck M performs a predetermined operation. At this time, the control signal is the choke coil 3
Since it is blocked by 3,35, it is transmitted to the multiplex transmission receiver 16 without being attenuated.

That is, the signal trolley wires 6 and 7 can be commonly used for transmission of high-frequency control signals such as commands to the carrier M and transmission of DC current. Therefore, as compared with the conventional travel control device for a carrier truck of this type that transmits these by separate transmission lines, the number of control trolley wires is small, the circuit configuration is simple, and the commercially available integrated type A trolley can be used.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of a traveling control device for a carrier vehicle according to the present invention. In this figure, the same reference numerals as those shown in FIG. 3 designate the same or corresponding parts.

Reference numeral 30 is a relay provided in the multiplex transmission transmitter 8B. Reference numeral 31 is a capacitor in the multiplex transmission receiver 16 provided in the carrier M, and the multiplex transmission receiver 16 and the signal trolley wire 6 are connected via the capacitor 31. . A DC power source (for example, DC24V) 32 is provided in the carriage M, and its positive electrode is a multiplex transmission receiver.
Receiver-side connection line 26 that connects 16 and the signal trolley line 7
The negative electrode is connected to the receiver side connecting line 25 connecting the multiplex transmission receiver 16 and the signal trolley line 6 with the choke coil 33.
Connected through.

Further, 34 is a capacitor in the multiplex transmission transmitter 8B connected to the signal trolley wires 6 and 7 in the section B.
The multiplex transmission transmitter 8B and the signal trolley wire 6 are connected via 34. And relay 30
One end of the multi-transmission transmitter 8B and the signal trolley wire 6 are connected to a transmitter-side connecting line 11 that connects the multi-transmission transmitter 8B and the signal trolley wire 6, and the other end is connected to the multi-transmission transmitter 8B and the signal trolley wire 7. It is connected to the transmitter-side connection line 12 that connects to and.

Although not shown in FIG. 1, the sections A and C have the same configuration as the section B.

Thus, in the above configuration, when the DC carriage 32 is in the ON state and the carriage M is in the section B as shown in FIG. 1, the DC current of the DC power supply 32 in the carriage M is used for signals. It flows only through the trolley wires 6 and 7 to the relay 30 corresponding to the section B, so that only the relay 30 operates. At this time, the DC current from the DC power supply 32 is
6. Since it is blocked by the capacitors 31 and 34 in the multiplex transmitter 8B, it does not flow into the multiplex transmitters 16 and 8B.

Then, the high frequency control signal from the multiplex transmission transmitter 8B is transmitted to the multiplex transmission receiver 16 in the carrier vehicle M via the signal trolley wires 6 and 7, whereby the carrier vehicle M performs a predetermined operation. . At this time, the control signal is the choke coil.
Since it is blocked by 33 and 35, it is transmitted to the multiplex transmission receiver 16 without being attenuated.

As can be understood from the above description, in the present invention,
Since the two signal trolley wires 6 and 7 can be commonly used for the transmission of the high frequency control signal and the direct current, the two "trolley signals" trolleys 4 and 5 (first (See Fig. 3) is no longer required, and the number of trolley wires required to be seven in the past is three for three-phase AC power transmission.
A total of five, a book and two for transmitting the high frequency control signal and the direct current, are required, and thus the circuit structure is simplified and a commercially available integrated trolley can be used.

[Effect of device]

As described above, in the traveling control device for a carrier vehicle of the present invention, the transmission of the high frequency control signal and the transmission of the direct current are performed by using the same trolley wire. The number of signal transmission trolley wires laid with the supply trolley wire can be reduced, and the circuit configuration can be simplified accordingly, and a commercially available integrated trolley can be used. Therefore, it is possible to economically configure a travel control device for this type of carriage.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a connection relationship between a trolley wire and a carriage, and a trolley wire and a control station in a travel control device for a carrier vehicle according to an embodiment of the present invention. FIG. 2 is an explanatory view showing a general configuration of a monorail, and FIG. 3 is a circuit diagram showing a connection relationship between a trolley wire and a carriage, and a trolley wire and a control station in a travel control device for a conventional carrier. 1, 2, 3 ... AC power supply trolley wire, 6, 7 ... Signal trolley wire, 8A, 8B, 8C ... Multiple transmission transmitter, 11, 12 ... Transmitter side connecting wire, 15 ... Traveling motor, 16 … Multiple transmission receiver, 16A… Signal to motor for running, 17,18,19… Collector, 20,21,22… Power connection line, 23,24… Collector, 25,26…
Receiver side connection line, 30 ... Relay, 31 ... Receiver side capacitor, 32 ... DC power supply, 33 ... Receiver side choke coil, 34 ...
Transmitter side condenser, 35 ... Transmitter side choke coil, M
… Transport vehicles, A, B, C… Sections.

Claims (1)

[Scope of utility model registration request] 1. A traveling control device for a carrier having a multiplex transmission transmitter (8A, 8B, 8C) and a multiplex transmission receiver (16), wherein the multiplex transmission transmitter (8A, 8B, 8C) is Which transmits a high-frequency control signal for traveling a carrier vehicle and receives a DC position signal, and has a relay (30), a transmitter-side capacitor (34) and a transmitter-side choke coil (35). , Each section of a pair of signal trolley wires (6, 7) that transmits a high frequency control signal and a DC position signal together and has a plurality of sections (A, B, C) electrically insulated from each other, Transmitter side connection line (11, 12)
The multi-transmission receiver (16) is mounted on the carrier (M) for receiving a high frequency control signal and transmitting a DC position signal, and the receiver side capacitor (31) And DC power supply (32) and receiver side choke coil (33).
A traveling control device for a carrier vehicle, which is connected to a signal trolley wire (6, 7) via (25, 26) and a current collector (23, 24).