JPH0131759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a time-division multiplexing remote control system, and its purpose is to install two series of remote control devices in parallel to increase the number of terminals, and to control both remote control devices. The object of the present invention is to simplify the setting operation of load control data when the loads connected to each terminal device are controlled in the same pattern.

Generally, in this type of time division multiplexing remote control device, the maximum number of terminals that can be controlled by one main operation panel is a finite value set by the number of bits of address data. Therefore, when it is desired to provide a large number of terminals, a time division multiplex remote control system in which two systems of remote control devices are installed in parallel, as shown in FIG. 1, has conventionally been used. 1 in the diagram
a, 1b are main operation panels, 2a, 2b are load control terminals (not shown, but multiple terminals are connected), and 2a', 2b' are monitors for monitoring the status of operation switches 3a, 3b. It is a terminal device, 4a is a signal line of the first remote control device, and 4b is a signal line of the second remote control device.

Now, in each remote control device, the main operation panel 1
A, 1b sequentially cyclically call a plurality of subordinate load control terminals (hereinafter abbreviated as terminals) 2a, 2b to call the called terminals 2a, 2.
While transmitting load control data Ca and Cb to b,
The terminals 2a, 2b send back monitoring data Da, Db indicating the operating status of the load, etc. to the main operation panels 1a, 1b. The above load control data Ca,
Cb is set by the operation switches 3a and 3b, respectively, and in the conventional example shown in FIG.
At a', 2b', the states of the operation switches 3a, 3b are sent back to the main operation panels 1a, 1b as monitoring data Da', Db'. However, main operation panel 1
If the switches a and 1b are located at easy-to-operate positions, the operation switches 3a and 3b are installed on the main operation panels 1a and 1.
It may also be built into b. On the other hand, the load control data Ca, Cb is data of multiple bits (for example, 3 bits) that pattern-controls multiple loads connected to each terminal device 2a, 2b, and the operation switches 3a, 3b correspond to the number of control patterns. It is formed by a keyboard or rotary switch with a number of contacts. By the way, in the conventional example described above, when transmitting the same load control data Ca, Cb to each terminal device 2a, 2b and controlling the load controlled by each terminal device 2a, 2b in the same pattern, , since the switches 3a and 3b provided on each remote control device must be operated separately to set the load control data Ca and Cb to the same value, the setting operation for the load control data Ca and Cb is cumbersome. It was hot. The present invention has been made in view of the above points.

Examples will be described below using figures.

2 to 4 show an embodiment of the present invention. As shown in FIG. 2, two series of remote control devices are arranged in parallel as in the conventional example, and signal lines 4a, 4
A relay terminal device 5 connected to the terminal b is provided. As shown in FIG. 3, this relay terminal device 5 includes a first terminal circuit 6a that receives and latches the load control data Ca of the transmission signal Vsa transmitted from the main operation panel 1a via the signal line 4a, and a main terminal circuit 6a. The load control data Cb of the transmission signal Vsb transmitted from the operation panel 1b via the signal line 4b is received and latched, and the load control data is output from the first terminal circuit 6a.
Ca is input as monitoring data Dc, monitoring data
A second terminal circuit 6 that returns DC to the main operation panel 1b
Exclusive OR circuits EO ₁ to EO ₃ and OR circuits OR circuits compare the load control data Ca and Cb respectively output from both terminal circuits 6a and 6b and output a mismatch signal N when they do not match.
and a gate circuit 8 consisting of an AND circuit AND which causes the return signal VBC of the monitoring data Dc output from the second terminal circuit 6b to be returned to the main operation panel 1b when the non-coincidence signal N is obtained. It is configured. FIG. 4 shows a block circuit diagram of the terminal circuits 6a and 6b, and 10 is a block diagram of the main operation panel 1.
The pulse width modulated transmission signal Vsa, as shown in FIG.
Vsb is input to the input terminal SIG and the start mark S,
Address data A, load control data Ca or
a receiving section that regenerates Cb and return standby pulse W;
11 is a latch output unit that latches load control data Ca or Cb and outputs it to output terminals _O1 to _O5 ; 12
14 is an address determination unit that compares the unique address A′ set in the address setting unit 13 with the received address data A and outputs an address match signal R when they match; 14 is a monitoring input terminal I ₁ to I ₅ a monitoring data return section that forms a pulse width modulated return signal VBb or VBa to be sent back to the main operation panels 1a, 1b based on the monitoring data Dc or Dd input to the main operation panel 1a, 1b; 15 is a logic control section that controls each section; is activated when the start mark S is input, and when the address data A is input to the address discriminator 12 and the address match signal R is output from the address discriminator 12, load control following the address data A is performed. The data Ca or Cb is latched to the latch output section 11, and the load control relay (not shown) drive signal RD is set to OD.
Output to the terminal. At the same time, the H of the return standby pulse W
The monitoring data return unit 14 is operated in synchronization with the level section, and a current mode return signal VBb or VBa for returning the monitoring data Dc or Dd input to the monitoring input terminals I ₁ to I ₅ is output to the return output terminal RET. let In the embodiment, the terminal circuits 6a, 6
b is formed of one chip IC except for the address setting section 13, and contains 5-bit load control data.
It is now possible to process Ca, Cb and monitoring data Dc, Dd. In this embodiment, the monitoring data Dd is not input to the terminal circuit 6a. On the other hand, the main operation panel 1b receives the monitoring data Dc returned from the relay terminal 5, that is, the return signal VBc that returns the load control data Ca output from the first terminal circuit 6a, and also receives the monitoring data
Dc is transmitted as load control data Cb to each subordinate terminal device 2b. Therefore, the same load control data Ca and Cb are transmitted to the terminals 2a and 2b of the two series of remote control devices, respectively, and the terminals 2a and 2
The loads respectively connected to b will be controlled in the same pattern. In this case, by setting the load control data Ca that controls the load control pattern using the operation switch 3a of the first remote control device, the load control data Ca is transmitted to the second remote control device via the relay terminal 5. The load control data Cb, which is the same as the data Ca, is transmitted, so there is no need to operate the operation switch 3b. It goes without saying that if a plurality of relay terminals 5 are used, three or more systems of remote control devices can be controlled by one operation switch 3a.

Hereinafter, the operation of the embodiment will be specifically explained using the time chart shown in FIG. Load control data currently latched in terminal circuits 6a and 6b
In interval A where both Ca and Cb (a to f in FIG. 6) are "010", the mismatch signal N output from the comparator circuit 7 is at the "L" level as shown in g in FIG. Return signal output from terminal circuit 6b
Since the gate circuit 8 is closed, VBc is not sent to the signal line 4b. Next, in the sections B and D where the load control data Ca changes to "100" by operating the operation switch Sa, the mismatch signal N becomes "H" level, so the gate circuit 8 opens and the signal line 4
A return signal VBc is sent to b, and the load control data Ca "100" is sent back from the relay terminal 5 to the main operation panel 1b as the monitoring data Dc. 6th
Figure i shows the return signal VB ₅ output from the relay terminal 5.
It is. On the main operation panel 1b, the monitoring data Vc “100” of the return signal VB ₅ sent back from this relay terminal device 5 is displayed.
is transmitted as load control data Cb to each terminal device 2b and relay terminal device 5 via the signal line 4b. When the relay terminal device 5 receives this load control data Cb "100", the load control data Ca and Cb output from the terminal circuits 6a and 6b both become "100" and the mismatch signal N goes "L". level, and the transmission of the return signal VB ₅ for returning the monitoring data Dc is stopped. (2 sections shown in FIG. 6) Note that the relay terminal device 5 operates as a terminal device for both main operation panels 1a and 1b, and a unique address is assigned to each of the terminal circuits 6a and 6b.

FIG _{. 7 shows another embodiment, in which outputs are sent from the output terminals O 1 to O 3 of the second terminal circuit 6b to the monitoring input terminals I 1 to I 3 of the first} terminal circuit 6a of the relay terminal device 5. In addition to inputting the load control data Cb, the gate circuit 8' is formed by two AND circuits AND ₁ and AND ₂ , and the same load control data Ca and Cd are input to both operation switches 3a and 3b. This realizes a so-called two-way operation function that allows setting operations to be performed. However, in this case, main operation panel 1
It is necessary to provide a selection switch in a and lb for selecting which of the operation switches 3a and 3b is used to control the two systems of remote control devices. In other words, when the mismatch signal N becomes "H" level, the signal line 4
Since return signals V5a and V5b are sent to terminals a and 4b, either one of the main operation panels 1a or 1b receives the return signals V5a or V5b and outputs the load control data.
It is necessary to change Ca and Cb.

The present invention is configured as described above, and in a time division multiplex remote control device in which two series of remote control devices are installed in parallel to increase the number of terminals, load control data of the operation switch of one remote control device is Through setting operations, the same load control data can be transmitted to each terminal of both remote control devices, and load control data when controlling the loads connected to each terminal of both remote control devices in the same pattern. This has the advantage of simplifying the setting operations.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a conventional example, FIG. 2 is a schematic diagram of an embodiment of the present invention, FIGS. 3 and 4 are circuit diagrams of the same main parts, and FIGS. The operation explanatory diagram, FIG. 7, is a main circuit diagram of another embodiment. 1a and 1b are main operation panels, 2a and 2b are terminal devices,
3a, 3b are operation switches, 5 is a relay terminal, 6
a, 6b are terminal circuits, 7 is a comparison circuit, and 8 is a gate circuit.

Claims (1)

[Claims] 1 Cyclically calls multiple subordinate load control terminals from the main operation panel in sequence, transmits the load control data set by the operation switch to the called terminal, and transfers the load connected to the terminal to the load control data. In a time-division multiplex remote control system consisting of two parallel remote control devices that are controlled by a remote control device, the load control data transmitted from the main operation panel of the first remote control device is received and latched. The load control data transmitted from the first terminal circuit and the main operation panel of the second remote control device is received and latched, and the load control data output from the first terminal circuit is input as monitoring data and A second terminal circuit that outputs a return signal that sends the monitoring data back to the main operation panel of the second remote control device, and a second terminal circuit that compares the load control data output from both terminal circuits and outputs a mismatch signal when they do not match. A relay terminal equipped with a comparison circuit and a gate circuit that causes a return signal outputted from the second terminal circuit when a mismatch signal is obtained to be returned to the second main operation panel is provided, and the second remote control device A time division multiplex remote control system characterized in that monitoring data returned from a relay terminal device is transmitted as load control data to each subordinate terminal device and the relay terminal device at the main operation panel of the computer.