JP2919438B2 - Terminal for remote control - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control terminal.

[0002]

2. Description of the Related Art Conventionally, as a remote monitoring and control system using a remote control terminal of this type, a central control device and a plurality of terminals having a unique address are connected by a pair of signal lines. There has been a system in which each terminal is accessed to perform time division multiplex transmission of data. FIG. 7 is a block circuit diagram of the remote control terminal 3, and a power supply circuit for rectifying and smoothing a transmission signal Vs transmitted from the central control unit via the signal line 4 to form a terminal circuit power supply. 20, a signal processing circuit 21, an address setting unit 22 for setting a unique address, a drive circuit 24, a relay circuit 25 for forming a control output of a load, and a monitoring circuit 26. At 21, a transmission signal Vs transmitted from the central control unit is received, and when the address data transmitted by the transmission signal Vs and its own unique address match, the control data is taken in and relay circuit via the drive circuit 24. 25 is controlled. The operation state of the relay circuit 25 is fetched into the signal processing circuit 21 via the monitoring circuit 26, and the monitoring data is converted into a return signal VB composed of a current mode signal for a predetermined period set by the transmission signal Vs. Will be returned to you.

FIG . 8 shows the external appearance of a remote control terminal 3. A signal line connection terminal 31 to which the signal line 4 is connected is provided at the center of the upper surface of a case 30 in which a terminal circuit is accommodated. Control output lead wires 32a 'to 32 for outputting four circuit control signals (relay contacts) from the upper end of 30
d 'has been derived. 32e is a common output terminal for the control signals of the four circuits.

[0004]

However, in the above-described conventional example, the control signal output is of a lead-out type, and the thickness of the control output leads 32a 'to 32d' is fixed. However, there is a problem that connection may be difficult depending on the load. In addition, conventional control terminals
The device is mounted on a connecting plate for arranging multiple control terminals side by side.
The connecting plate has no other control
The problem that it cannot be installed side by side with your customer terminal
there were. The present invention has been made in view of the above points, and the object thereof is to use a control output lead wire of any thickness according to the load,
Connection is easily row e to the load, and a plurality of remote control terminal
Is to provide a mounting that can be far隔制patronage terminal unit to the connecting plate for juxtaposed end device.

[0005]

Remote control terminal unit of the present invention SUMMARY OF THE INVENTION may, receives Then together the control data time division multiplexed transmitted by receiving the transmission signal through the signal line from the central control unit
A terminal circuit which outputs a control signal for load, and a case that the terminal circuit is accommodated, wherein the case substantially rectangular parallelepiped
And provided on a connecting plate for arranging a plurality of cases in parallel.
The engaging recess that engages the concave and convex with the engaging portion
On both sides in the direction
A signal line is connected to the surface opposite to the surface facing the connecting plate.
Control in which the signal line connection terminal and the control output lead wire are connected
It has an output terminal and is provided in the longitudinal direction of the case.
Engagement recesses are provided on both side surfaces of the engagement recess.
And the engaging portion provided on the connecting plate with the concave and convex engagement.
Therefore, it is necessary to arrange multiple cases side by side in the short width direction.
And the surface of the case that faces the connecting plate
The signal line connection terminal and the control output terminal are provided on the opposite surface.
Runode control any Thickness what can be used in accordance with the output load as lead, easily wire to the load
It can be carried out.

[0006]

Embodiments of the present invention will be described with reference to the drawings . FIG. 4 shows a schematic configuration of a remote monitoring and control system using the control terminal 3 according to the present invention. The central control device 1 includes a plurality of monitoring terminals 2 each having a unique address, and a control terminal. Device 3, wireless relay terminal 7, external control terminal 8, and pattern setting terminal 9
Are connected by a pair of signal lines 4, and the central controller 1
The transmission signal Vs transmitted from the to the signal line 4 is shown in FIG.
, A start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating a signal mode, an address data signal AD transmitting 8-bit address data for calling the terminals 2, 3, 7 to 9, and a load L. _A multi-pole (± 24 V) comprising a control data signal CD for transmitting control data for controlling _{1 to} L ₄ , a checksum data signal CS, and a return standby signal WT for setting a return period from the terminals 2, 3, 7 to 9. ), And data is transmitted by pulse width modulation. Each of the terminals 2, 3, 7 to 9 takes in control data of the transmission signal Vs when the address data of the transmission signal Vs received via the signal line 4 matches its own unique address data, and transmits the data. The monitor data signal is returned as a current mode signal (a signal transmitted by short-circuiting the signal lines 4 via a suitable low impedance) in synchronization with the return standby signal WT of the signal Vs. The central control device 1 includes a dummy signal transmitting means for constantly transmitting a dummy transmission signal with the mode data signal MD in a dummy mode, one of the monitoring terminal 2 or the wireless relay terminal 7, and the external control terminal. When the interrupt signal Vi returned from the pattern setting terminal 8 and the pattern setting terminal 9 as shown in FIG. 5B is received, the interrupt generation terminals 2, 7 to 9
And an interrupt processing means for accessing the terminals 2, 7 to 9 and returning monitoring data.
In the central control unit 1, the monitoring data returned from the monitoring terminal 2 or the wireless relay terminal 7, the external control terminal 8, and the pattern setting terminal 9 to the central control Based on the corresponding loads L _{1 to} L ₄
Control data to be transmitted to the control terminal 3 for controlling the load L _{1 to} L ₄ by time division multiplex transmission of the control data to the control terminal 3 via the signal line 4. It has become.

The wireless relay terminal 7 is a terminal for relaying data of an optical wireless system including an optical wireless transmitter 10, an optical wireless receiver 11, and a wireless signal line 12, and is transmitted from the optical wireless transmitter 10. Received optical signal by the optical wireless receiver 11,
The received data is received via the wireless signal line 12, and the data is transferred to the central controller 1. The external control terminal 8 is a terminal for transferring data from the external control device 8a to the central control device 1, and the pattern setting terminal 9 centrally controls the pattern control data input from the data input unit 9a. A terminal for transferring to the device 1. The monitoring terminal 2 and the control terminal 3 disposed in the distribution board 6 or the relay control panel 6a have a distribution board agreement size, and the control output thereof is used to control the remote control relay for load control. (Latching relay that can be turned on and off also by a hand switch) 5 is controlled.

As shown in FIGS. 1 to 3, the case for housing the terminal device circuit has a signal line connection terminal 31 at the center of the upper surface of the case 30, and a control output terminal at the end of the case 30. Control output terminals 33a to 33 to which lead wires are connected
d is provided. The control output common terminal 32e
Is provided on the side of the signal line connection terminal 31 as in the conventional example.

At the upper end of the case 30, control output terminals 32a to 32d to which control output leads to be connected to a load are connected are provided. Can be connected to the load by connecting a control output lead wire of any thickness according to
Load wiring can be easily performed .

FIG. 1 is a perspective view of a control terminal 3 of the present embodiment .
6 is shown. The case 30 accommodating the terminal circuit is set to have a common size of a distribution board of one module so that it can be attached to the panel connecting plate 50. Note that the side surface of the case 30, the engaging recess serving recess 53 is provided with engagement portions serving engaging piece 51 and the engagement spring piece 52 of the board for connecting plate 50 is engaged.

[0011]

The present invention is configured as described above,
Yes a terminal circuit for outputting a control signal of the load which receives the control data time division multiplexed transmitted by receiving the transmission signal through the signal line from the central control unit, and a case that the terminal circuit are housed The case has a substantially rectangular parallelepiped shape.
Provided on a connecting plate for arranging a plurality of cases side by side.
The engaging recess that engages with the engaging part
On both sides of the case
Signal whose signal line is connected to the surface opposite to the surface facing the board
Control output terminal where the wire connection terminal and control output lead wire are connected
And the both ends in the longitudinal direction of the case.
Since the engagement recess is provided on the side surface, it can be connected to this engagement recess.
By engaging the engaging portion provided on the plate
Multiple cases can be arranged side by side in the short width direction.
And the side opposite to the surface facing the connecting plate in the case
Are provided with signal line connection terminals and control output terminals
The control output lead wire can be of any thickness according to the load and can be easily wired to the load.
There is an effect that.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a control terminal device of the present embodiment.

FIG. 2 is a top view of the same.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a schematic configuration diagram of a remote monitoring and control system using the control terminal device according to the first embodiment;

FIG. 5 is an operation explanatory view of the above.

FIG. 6 is a perspective view showing the control terminal device according to the first embodiment ;

FIG. 7 is a block circuit diagram of the same.

FIG. 8 is a top view showing a conventional control terminal .

[Explanation of symbols]

 30 case 31 signal line connection terminal 32a to 32d control output terminal

Claims (2)

(57) [Claims] 1. A control signal received from a central control unit via a signal line to receive control data transmitted in a time division multiplex manner.
And a terminal device circuit for outputting a load control signal, and a case in which the terminal device circuit is housed.
A connecting plate that is rectangular and has a plurality of cases arranged side by side
Engagement recess that engages with the engagement part provided on the
Provided on both sides in the longitudinal direction and attached to the case
Signal lines are connected to the surface opposite to the surface facing the connecting plate
Connected signal line connection terminal and control output lead wire
And a control output terminal . 2. A case in which a terminal device circuit is stored is one module.
2. The remote control terminal according to claim 1, wherein the terminal is set to a common size of a power distribution board .