JPH0389489A - Lighting control system - Google Patents

Abstract

PURPOSE:To facilitate the installation work by collating the load circuit numbers in the lighted state when an individual operation switch is operated and the stored load circuit numbers after an all-on switch is operated, and controlling the on/off of an all-on display lamp. CONSTITUTION:A parent unit 1 transmits on-signals to lighting loads 6 of all control terminals 5 when the all-on switch 31 of a pattern monitoring terminal 3 is operated and turns on an all-on display lamp 33. The load circuit numbers of lighting loads 6 receiving the lighting responses from individual control terminals 5 after the all-on switch 31 is operated are stored. When the individual operation switch 41 of an individual operation switch monitoring terminal 4 is operated, the load circuit numbers of the lighted display lamps 42 and the stored load circuit numbers are collated, if all lighting loads 6 with the stored load circuit numbers are lighted, the all-on display lamp 33 is turned on, if any one of the lighting loads 6 with the stored load circuit numbers is not lighted, the all-on display lamp 33 is turned off.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lighting control system that centrally controls a large number of lighting loads from a master unit (central processing unit) via a plurality of control terminals.

[Prior Art] Conventionally, a base unit, a control terminal device having a control circuit system to which one or more lighting loads are connected and which controls on/off of these lighting loads by a remote control relay, and all connected lighting loads. pattern (all-on/off) monitoring terminal including an all-on switch that turns on the light loads and an all-on indicator light that lights up when all the lighting loads are turned on, and for turning these lighting loads on and off individually. There is a lighting control system that controls the operation of each lighting load by connecting individual operation switch terminals, etc., including individual operation switches, via two-wire transmission lines, and transmitting and receiving transmission signals between them. Ta.

An all-on switch is a switch that turns on all lighting loads by operating it.

Similarly, some lighting control systems include an all-off switch that turns off all lighting loads. An all-on switch and an all-off switch are types of pattern switches that turn on/off a lighting load in a predetermined pattern assigned in advance.

[Problems to be Solved by the Invention] By the way, in such a conventional lighting control system, when the all-on switch is operated, the base unit transmits a control signal to all control terminals instructing to turn on the lighting load. In response to this, the control terminal turns on all connected lighting loads, and as a result sends a monitoring signal back to the base unit.

However, there are cases where a lighting load circuit such as a remote control relay is not connected to a part of the control circuit system of the control terminal.

At this time, even if the lighting load is instructed to be turned on by operating the all-on switch, since the lighting load circuit is not connected, the monitoring signal sent back to the base unit is an off signal. Therefore, in response to an all-on instruction to turn on all lighting loads, areas where no lighting load circuit is connected are mistakenly recognized as not being lit, and the all-on indicator lamp is not lit. There is.

Therefore, by connecting the output terminal of the control terminal to which the lighting load circuit is not connected and the terminal of another circuit to which the lighting load circuit is connected via a resistor, it is possible to connect the output terminal of the control terminal to which the lighting load circuit is not connected, as if the main unit were to connect the lighting load such as a remote control relay. It looks like the circuit is connected.

FIG. 6 shows an example in which a control terminal and a lighting load circuit are connected using such a resistor. In the same figure, the load circuit C) II connected to the control terminal has a remote control relay R.
R and remote control transformer RT are connected. The remote control relay RR is turned on/off in accordance with the on/off of the terminal C by the power supplied from the remote control transformer RT, and thereby the lighting load 6 is turned on/off. Vl is a power supply for the lighting load.

On the other hand, the lighting load circuit is not connected to the terminal CH2 of the control terminal, and instead, the load circuit C1 is connected via the resistor R.
It is connected to 11 terminals. As a result, if the base unit sends an on signal to all control terminals,
Even to a portion to which a lighting load circuit is not connected, such as CH2 in FIG. 6, the parent device will send back a monitoring signal indicating that it has been turned on. Therefore, in response to the all-on instruction, the base unit recognizes that all lighting loads have been turned on, and turns on the all-on indicator light.

However, according to the method using such a resistor,
The resistor must be connected at the site where the lighting control system is installed, creating problems such as the need to prepare the resistor and the troublesome connection work.

In view of the above-mentioned problems with the conventional type, the present invention enables the all-on indicator lamp to be turned on by operating an all-on switch without connecting a resistor to a terminal to which a lighting load circuit is not connected as in the conventional case. The purpose of this project is to provide a lighting control system.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a control terminal device to which a base unit and one or more lighting loads are connected and which controls on/off of these lighting loads by a remote control relay. and pattern monitoring, including an all-on switch that turns on all lighting loads connected within a predetermined range on the base unit, and an all-on indicator that lights up when all lighting loads are turned on. In a lighting control system having a terminal device and an individual operation switch monitoring terminal device including an individual operation switch for individually turning on/off lighting loads, when the all-on switch is operated, an ON signal is sent to all control terminal devices. At the same time, the all-on indicator light is turned on, and at this time, the load circuit number of the lighting load that responded by turning on is memorized based on the monitoring data sent from each control terminal, while the individual operation switch is operated. When the light is on, check the lit load circuit number and the memorized load circuit number, and if all the lighting loads with the memorized load circuit number are lit, turn on the all-on indicator light. , 1 of the lighting loads with the stored load circuit number
If the lights are off at any time, the all-on indicator light is turned off.

[Function] According to the above configuration, when the all-on switch is operated for the first time, the lighting is turned on regardless of how the lighting load is connected to the control terminal (or not). The load circuit number of the lighting load that responded is stored. This becomes information indicating the lighting load connected to the control terminal. From now on, when the individual operation switch is operated, you will be able to see how many of the lighting loads of the stored load circuit number are lit, making it easy to control the lighting/turning off of the all-on indicator light. This is achieved through accurate discrimination.

[Example] Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a lighting control system according to an embodiment of the present invention. The system in the diagram is
A master unit (central processing unit) 1, a pattern monitoring terminal 3 connected to the central processing unit 1 via a transmission line 2, an individual operation switch monitoring terminal 4, and one or more connected to one or more lighting loads 6. It is composed of a control terminal 5 and the like.

The base device 1 has a memory 11. It includes a control section 12 and a transmission interface 13. The pattern monitoring terminal 3 is equipped with an all-on switch 31 for turning on all the lighting loads 6 and an all-off switch 32 for turning off all the lighting loads 6 on its panel. Reference numeral 33 denotes an all-on indicator lamp, which is turned on when all the connected lighting loads 6 are turned on, and turned off otherwise. Reference numeral 34 denotes an all-off indicator lamp, which is lit when all the lighting loads 6 are off, and is turned off in other situations.

The individual operation switch monitoring terminal 4 is one-to-one with the control terminal 5.
An individual operation switch 41 is provided on the panel to individually turn on/off the lighting loads 6. 42 is an individual operation switch 4t
An indicator light 43 is turned on when the corresponding lighting load 6 is turned on, and 43 is an indicator lamp turned on when the corresponding lighting load 6 is turned off. Note that the number of pattern monitoring terminal devices 3 is not limited to one, and a plurality of pattern monitoring terminal devices 3 may be provided.

FIG. 2 shows a detailed circuit diagram of the connection portion between the control terminal 5 and the lighting load 6 in the system of the embodiment shown in FIG.

In the figure, when a control signal indicating that the lighting load 6 should be turned on is sent from the main unit 1, the control terminal 5 receives this through a receiving circuit (not shown), and the control output OUT of the CPU 50 becomes 1#. . Therefore, the transistor TRI is turned on, and current is supplied to the primary side (light emitting diode) of the photocoupler Pct. This turns on the secondary side (photosilisk) of the photocoupler Pct.

On the other hand, the control output OUT of the CPU 50 is connected to the inverter IN
It is connected to the base terminal of the transistor TR2 via V. Therefore, when the control output OUT is "1", the transistor 2 is turned off and the photocoupler PC2 is not turned on.

The remote control transformer RT has a remote control relay R on the primary side.
An AC power source for driving R is connected. Therefore, when the photocoupler Pct is turned on, the remote control relay RR is
A voltage is applied that causes a current to flow in the direction from to ■.

As a result, the remote control relay RR operates and the lighting load 6 (details of which will be described later) lights up.

At this time, the drive current of the remote control relay RR flows through the diode D1 to the primary side of the photocoupler PC3, thereby turning on the phototransistor on the secondary side of the photocoupler PC3. Therefore, the monitoring input I of the CPU 50
N becomes "0", and monitoring data indicating that the corresponding lighting load 6 is in the lighting state is sent back to the base unit.

When a control signal to turn off the lighting load 6 is sent from the base unit 1, the control output of the control terminal CPυ50 is
becomes "0". This signal is inverted by the inverter INV, and the base terminal of the transistor TR2 becomes "11". Therefore, the transistor TR2 is turned on, and current is supplied to the primary side of the photocoupler PC2. As a result, the secondary side of photocoupler PC2 is turned on, and remote control relay R
A relay driving voltage is supplied to R in a direction that causes the current to flow from ■ to ■. As a result, the remote control relay RR operates and the lighting load 6 (details of which will be described later) turns off.

At this time, since the diode D1 is present, no current flows through the primary side of the photocoupler PC3. Therefore, the secondary side phototransistor is turned off, and the monitoring input IN of the CPU 50 becomes "1". As a result, monitoring data indicating that the corresponding lighting load 6 is in the off state is returned.

Although FIG. 2 shows only the circuit corresponding to the load circuit CHI, other C! ! 2. Similar circuits are configured for C113 and CI+4. However, some devices do not have load circuits, such as remote control relays, connected to the terminals of the terminal.

FIG. 3 is a circuit diagram showing the inside of remote control relay RR of FIG. 2. The state shown in the figure shows a state in which power is not supplied to the lighting load 6 and the light is turned off.

When the lighting load 6 is instructed to turn on from the base unit 1 as explained in FIG. 2 when the lights are off, the voltage (■) is applied to the remote control relay RR so that the current flows in the direction from ■ to ■. + side, ■ is one side) is applied. As a result, inside remote control relay RR, terminal ■ → relay contact C
Current flows as follows: T2 → diode D4 → relay drive coil C → diode D5 → terminal ■. Therefore, relay contact CT1. Cr2 switches, contact CTI turns on,
The contact CT2 becomes conductive to the diode D3 side.

Since the relay contact CTI is turned on, power is supplied to the lighting load 6 and the lighting load 6 lights up.

On the other hand, when this lighting load is turned on, the base unit 1
If a control signal to turn off the lighting load 6 is transmitted from the remote control relay R as explained in FIG.
A voltage is applied to R to cause a current to flow in the direction from ■ to ■. As a result, remote control relay I? Inside H,
Current flows as follows: terminal ■ → diode D2 → relay drive coil C → diode D3 → relay contact CT2 → terminal ■. Therefore, relay contact CT1. Cr2 switches again, the contact CTI turns off, and the contact CT2 becomes conductive to the diode D4 side. Thereby, the lighting load 6 is turned off.

Next, the operation of base unit 1 in the lighting control system of this embodiment will be explained. The internal memory 11 of the base unit 1 stores information as shown in FIG. 4 as an all-on monitoring memory. This all-on monitoring memory indicates, in one bit, the status of four load circuits for each address of the control terminal (which can be set from "1" to "64" in this embodiment). For circuits for which monitoring data is returned when the all-on switch is operated, set "1" (indicating that a lighting load is connected to the control circuit system) in the corresponding position of this all-on monitoring memory. do. All other values are set to "○" (indicating that no lighting load is connected to the control circuit system).

Referring to the flowchart in FIG. 5, base unit 1 first receives switch monitoring data in step 81.

In step S2, it is determined whether the received switch monitoring data indicates an operation of an all-on switch, and if it is an operation of an all-on switch, a control signal to turn on an all-on indicator lamp is transmitted in step S3. . Then, in step S4, a control signal instructing the lighting of all lighting loads is transmitted to the control terminals at all addresses, and in step S5, the monitoring data returned from all these control terminals is received. Next, in step S8, if the returned monitoring data indicates that the lighting load is turned on, one bit in the all-on monitoring memory corresponding to that circuit at that address is set to "1". And 1. Finish the process.

If it is determined in step S2 that the operation is not an all-on switch, it is determined in step S7 whether or not the operation is an individual operation switch. If it is an operation of an individual operation switch, the process advances to step S8; otherwise, other switch processing is performed and the post-processing is ended.

In step S8, it is determined whether or not the operation of the individual operation switch is an off operation. If it is an off operation, the process proceeds to step 812. In step S12, control data is transmitted to turn on/off an individual indicator light corresponding to the operated individual operation switch so as to indicate an off state. Next, in step 813, a control signal to turn off the all-on indicator light is transmitted, and in step S14, it is determined whether all the load circuits are in the off state. The on/off state of each load circuit is known by a state memory (which always remembers whether the channel corresponding to the load circuit at each address is on or off), which has a structure similar to the all-on monitoring memory shown in Figure 4. be able to.

When the full load circuit is in the off state in step S14,
In step 815, a control signal to turn on the all-off indicator light is transmitted, and the operation ends. If the full load circuit is not turned off in step S14, the process ends immediately.

If the individual operation switch is not turned off in step S8, it is an on operation, so in step S9 control data is sent to turn on/off the individual indicator light corresponding to the individual operation switch to indicate the on state; At step 810, the state memory indicating the on/off state of each load circuit is compared with the all-on monitoring memory. When all the load circuits for which '1'' is set in the all-on monitoring memory are in the on state, a control signal to turn on the all-on indicator lamp is transmitted in step 811, and the process ends.Step 8
If the all-on monitoring memory and the state memory do not match in step 10, the process ends immediately.

The above operations are repeated each time each switch is operated.

In the above embodiment, the present invention is applied to an all-on/all-off monitor, but the present invention is not limited to this, and can also be applied to a pattern-controlled monitor that turns on/off a lighting load within a predetermined range. .

[Effects of the Invention] As explained above, according to the present invention, when the all-on switch is operated, the load circuit number of the lighting load that responds to lighting is stored based on the monitoring data sent back from each control terminal. However, when the individual operation switch is operated, the load circuit number stored in the memory is compared with the current lighting/extinguishing state to control the lighting/extinguishing of the all-on indicator. Even if a resistor is not connected, there is no need to connect a resistor instead, which simplifies the installation work. Further, as the all-on monitoring memory, a conventional memory in the base unit can be used, and all-on/off pattern control monitoring can be performed without increasing cost.

[Brief explanation of drawings]

Figure m1 is a block diagram showing a schematic configuration of a lighting control system according to an embodiment of the present invention, and Figure 2 is a detailed circuit diagram of a connection part between a control terminal and a lighting load of the lighting control system in Figure 1. , FIG. 3 is an internal circuit diagram of the remote control relay, FIG. 4 is a memory structure diagram of the all-on monitoring memory, FIG. 5 is a flowchart for explaining the operation of the base unit of the system of this embodiment, FIG. 6 is a circuit diagram showing a state in which a resistor is connected to a terminal to which a load circuit is not connected in a conventional lighting control system. 1: Base unit, 2: Transmission line, 3: Pattern monitoring terminal, 4:
Individual operation switch monitoring terminal, 5: Control terminal, 6: Lighting load, 11: Memory, i2: Control unit, 13: Transmission interface, 81: All-on switch, 32: All-off switch, 33: All-on indicator light , 34: All-off indicator light, 41: Individual operation switch, 42.43
: Individual indicator, 50 : CPU 5TR1, TI? 2
: Transistor, PCl, PO2, PO2: Photo coupler 1RR: Remote control relay, RT: Remote control transformer, CTI, CT2: Relay contact, C: Relay drive coil, Di-D5: Diode.

Claims (1)

[Claims] (1) A base unit, a control terminal to which one or more lighting loads are connected and which controls on/off of the lighting loads using a remote control relay, and all devices connected within a predetermined range of the base unit. A pattern monitoring terminal including an all-on switch that turns on the lighting loads and an all-on indicator that lights up when all the lighting loads are turned on, and an individual operation switch that turns on and off the lighting loads individually. In a lighting control system having an individual operation switch monitoring terminal including: means for transmitting an on signal to all of the control terminals and lighting the all-on indicator light when the all-on switch is operated; a storage means for storing the load circuit number of the lighting load that responded to turn on based on monitoring data sent from each control terminal after the all-on switch is operated; and when the individual operation switch is operated, The load circuit number in the lighting state is compared with the load circuit number stored in the storage means, and if all the lighting loads with the load circuit numbers stored in the storage device are in the lighting state, the all-on indicator light is turned on. A lighting control system comprising: a control means that turns on the all-on indicator lamp and turns off the all-on indicator lamp when at least one of the lighting loads having the load circuit number stored in the storage device is off.