TWI385891B - Load control system - Google Patents

Abstract

The invention discloses a load operating system. An operating terminal is configured to acquire the current state of a load when an input receiving unit of the operating terminal receives a control instruction (storage instruction). The control instruction is used for registering the load state after a control terminal controls the load L to be operated by the expected dimming level. Meanwhile, acontrol unit of the operating terminal stores a relationship between each load and each load state into a memory. Therefore, a nonprofessional user also can easily register the relationship for batchcontrol (mode control).

Description

Load control system

The present invention relates to a load control system for controlling a load. In particular, the present invention relates to a load control system that is configured to control a load by operating an operation switch.

A conventional load control system is disclosed in Japanese Patent Application Publication No. 2003-037879A. The conventional load control system is configured to control the load by means of a time division multiplex transmission signal (TDM transmission signal).

As shown in FIG. 12, the load control system includes a transmission control unit 100, a plurality of operation terminals 102, and a plurality of control terminals 103. A plurality of operating terminals 102 are arranged to communicate with the transmission control unit 100 via a two-wire signal line Ls. The operation terminals 102 have an operation switch S1 and the like, respectively. The control terminals 103 are each configured to control the lighting loads. Hereinafter, the lighting load is called "load".

Each of the operator terminals 102 has an operator terminal address. Similarly, each of the control terminals 103 has a separate control terminal address. The transmission control unit is configured to use the individual operating terminal address and the individual control terminal address to communicate with the operating terminal 102 and the control terminal 103.

The transmission control unit 100 is set to transmit the transmission signal Vs having the format shown in FIG. 13(a) to the signal line Ls. The transmission signal Vs includes a synchronization signal SY, a mode data MD, an address data AD, a control data CD, a checksum (sum) data CS, and a signal return period WT. The sync signal SY indicates the start of the signal transmission. The mode data MD indicates one of the modes of the transmission signal Vs. The address data AD is used to select the operation terminal 102 or the control terminal 103. The control profile CD is used to control the loads 104. The checksum and the data CS are used to detect the transmission error of the signal. The signal return period WT is a time slot for receiving the return signal (monitoring signal) from the operating terminal 102 and the control terminal 103. The transmission signal Vs is equal to the TDM transmission signal. As shown in FIG. 13(b), the transmission signal Vs is modulated by the pulse width and then transmitted to the signal line Ls. In the operation terminal 102, when the operation terminal 102 recognizes the address data AD (equal to its own operation terminal address) of the transmission signal Vs, the operation terminal 102 receives the control data CD. Subsequently, the operation terminal 102 transmits a current mode signal indicating the monitoring data to the transmission control unit 100. In the same manner, when the control terminal 103 recognizes the address data AD of the transmission signal Vs (equal to its own control terminal address), the control terminal 103 receives the control data CD. Subsequently, the control terminal 103 transmits a current mode signal indicating the monitoring data to the transmission control unit 100. It should be noted that the current mode signal is equal to a signal transmitted by means of a low impedance by shorting the signal line Ls.

When the transmission control unit 100 transmits the data to the required operation terminal 102 and the control terminal 103, the transmission control unit 100 generates the transmission signal. The transmission signal includes "mode data MD indicating the control mode", and "address data AD indicating the operation terminal address of the required operation terminal or the control terminal address of the required control terminal". When the transmission control unit 100 transmits the transmission signal Vs to the signal line Ls, the operation terminal 102 and the control terminal 103 check whether the address information AD is equal to its own address. When the operation terminal 102 or the control terminal 103 recognizes that the address data AD is equal to its own address, the operation terminal 102 or the control terminal 103 receives the control data CD. Subsequently, the operation terminal 102 or the control terminal 103 transmits the monitoring data within a signal return period. The transmission control unit 100 compares "monitoring data received during the signal return period" with "control data CD transmitted from the transmission control unit 100". When the "monitoring data received during the transmission of the signal" is equivalent to the "control data CD transmitted from the transmission control unit 100", the transmission control unit 100 recognizes that the transmission of the control data CD is completed. In the control terminal 103, the control terminal 103 generates a load control signal based on the control data CD transmitted from the transmission control unit 100. The load control signal is used to control the loads 104. Subsequently, the control terminal 103 outputs the load control signals. In the operation terminal 102, based on the control data CD, the operation terminal 102 outputs a display signal to control the display to instruct the display to display the status of the load 104.

On the other hand, the transmission control unit 100 under a normal condition is set to periodically transmit a transmission signal having the mode material MD in a dummy mode. This is called "constant polling". In this case, the transmission control unit 100 accesses the control terminal 103 to request the return of the monitoring data indicating the load status. On the other hand, the specific control terminal 103 accessed by the transmission control unit 100 transmits "the state in which the loads are connected to a specific control terminal 103" to the transmission control unit 100. When the transmission control unit 100 receives the status of the load from the specific control terminal 103, the transmission control unit 100 accesses a specific operation terminal 102 corresponding to the specific control terminal 103, and transmits the display for displaying the load. A control data CD connected to the state of the control terminal 103.

In this way, the transmission control unit 100 periodically accesses the control terminal 103 and the operation terminal 102 corresponding to the control terminal 103 by means of the uninterrupted polling method.

When the operation terminal 102 or the control terminal 103 transmits specific information to the transmission control unit 100 under the uninterrupted polling, the operation terminal 102 or the control terminal 103 is in the simulation mode shown in FIG. 13(c). An interrupt signal is generated, which is synchronized with the synchronization signal SY of the transmission signal Vs. Subsequently, the operation terminal 102 sets an interrupt flag to block transmission and reception of information about the transmission control unit 100. When the transmission control unit 100 receives the interrupt signal, the transmission control unit 100 generates the transmission signal. This transmission signal has a mode material MD indicating an interrupting polling mode. The transmission signal also has the address data AD. The transmission control unit 100 gradually increases the upper half of the address data AD. (ie, when the address data AD has 8 bits, the high 4 bits are gradually increased.) Subsequently, the transmission control unit 100 continuously transmits the transmission signal while increasing the upper half of the address data AD. digit. The operation terminal 102 that generates the interrupt signal receives and checks the high-order 4 bits of the address data AD in the transmission signal of the interrupt polling mode. When the operation terminal 102 recognizes that the height 4 bits of the address data AD in the transmission signal is equal to the height 4 bits of the operation terminal address of the operation terminal 102, the operation terminal 102 positions the operation terminal. The lower 4 bits of the operation terminal address of the address 102 are transmitted to the transmission control unit 100. In this manner, the transmission control unit 100 is set to search the operation terminal 102 that generates the interrupt signal every sixteen operation terminals 102. Therefore, it is possible to find the operation terminal 102 that generates the interrupt signal in a short time.

When the transmission control unit 100 obtains the address of the operation terminal 102 that generates the interrupt signal, the transmission control unit 100 generates a transmission signal having the mode data MD in the monitor mode, and then includes the indication The transmission signal Vs of the address data AD of the obtained address is transmitted to the signal line Ls. In order to transmit the signal Vs, the operation terminal 102 transmits the information to the transmission control unit 100 in the signal return period WT. Finally, the transmission control unit 100 transmits a signal for canceling the interruption to the operation terminal 102 that generated the interruption signal, whereby the transmission control unit 100 unlocks the interruption flag of the operation terminal 102. As described above, the information transmission from the operation terminal 102 to the transmission control unit 100 is completed by four signal transmissions from the transmission control unit 100 to the operation terminal 102. (ie, the first time is equal to the emulation mode. The second time is equal to the interrupt polling mode. The third time is equal to the monitor mode. The fourth mode is equal to the signal for canceling the interrupt.) When the transmission control unit 100 needs When the operating conditions of the desired control terminal 103 are identified, the transmission control unit 100 transmits only the transmission signal having the mode material MD in the monitoring data.

Therefore, when the operation data is generated according to the operation of the switches S1 or the like, the operation terminal 102 transmits the operation data as the monitoring data to the transmission control unit 100. Based on the operational data, the transmission control unit 100 generates a transmission signal Vs having the control data CD, and transmits the transmission signal Vs to the control terminal 103. When the control terminal 103 receives the transmission signal, the control terminal 103 controls the loads 104. In particular, when the control terminal 103 receives the transmission signal, the control terminal 103 turns the load on or off according to the control data. Subsequently, the control terminal 103 transmits the monitoring data back to the transmission control unit 100. Then, the transmission control unit 100 transmits a transmission signal Vs having the control data CD, which is established based on the transmitted monitoring data. The operation terminal 102 turns on or off the indicator light to indicate the operating condition of the load, that is, whether the load is lit. The indicator light is exemplified as a light-emitting diode or the like.

By the way. Transmission control unit 100 in this type of load control system stores the relationship of the switch to the addresses of the loads. Thus, in the case where a switch is associated with the addresses of the plurality of loads 104, it is possible to control the plurality of loads 104 by a switch. In other words, in the case where a switch is associated with the addresses of the plurality of loads 104, it is possible to perform a bulk control to control the plurality of loads 104 by a switch. This batch control is such as group control and pattern control. When the transmission control unit 100 performs the group control, the transmission control unit 100 controls a plurality of loads 104 so that all loads have the same control state. On the other hand, when the transmission control unit 100 performs the group control, the transmission control unit 100 controls a plurality of loads 104 so that each of the loads has a predetermined control state. An operator terminal (not shown) for performing batch control (such as mode control and group control) has switches associated with determining the addresses for the batch control. The addresses used for the batch control are determined to be, for example, a group address and a pattern address. However, the configuration other than the batch control function of the operation terminal is the same as the configuration of the operation terminal not used for executing the batch control.

Further, when operating a switch for operating the batch control of the terminal, the transmission control unit 100 obtains an address (for example, a group address) assigned to the switch. Subsequently, the transmission control unit 100 generates control data for controlling a plurality of loads associated with the group addresses. The transmission control unit 100 then transmits the control data to the control terminal 103 in order. In this way, the transmission control unit 100 can control the loads of the packets in the same group.

In other words, in the conventional load control system, the control terminal 103 is not set to directly transmit the transmission signal Vs to the operation terminal 102, and receives the transmission signal Vs from the operation terminal 102. That is, the control terminal 103 is configured to transmit the transmission signal Vs to the operation terminal 102 through the transmission control unit 100, and receive the transmission signal Vs from the operation terminal 102. This is the so-called central control type of load control system. In the central control type load control system, the transmission control unit 100 performs unified management of addresses for performing batch control (mode control and group control). Therefore, the transmission control unit 100 needs to log in a relationship for performing the batch control. However, since the login operation requires a special setter (not shown), it is difficult to log in the relationship for executing the batch control. Therefore, only professional operators can log in to the address. That is, there is a problem that it is difficult for a non-professional user to log in to the address.

The present invention has been achieved to solve the above problems. It is an object of the present invention to provide a load control system that enables non-professional users to easily log into the relationship of batch control.

In order to solve the above problems, the present invention provides a load control system for controlling at least one load. The load control system includes at least one control terminal and at least one operation terminal. The control terminal is connected to the at least one load. The operation terminal is connected to at least one of the control terminals via a signal line. Each of the control terminals has a separate control terminal identification code. Each of the operation terminals separately has an operation terminal identification code. The control terminal includes a first input receiving device, a first control device, and a first communication device. The first input receiving device has at least one first operational switch. The first operational open relationship is for inputting a first control command. When the first input receiving device receives the first control command, the first control device is set to control a predetermined load in response to the first control command. The predetermined load corresponds to the first control command. The predetermined load is controlled by the first control device. In other words, the predetermined load is under the control of the first control device. The operation terminal has a second input receiving device, a memory, a second control device and a second communication device. The second input receiving device has at least one second operational switch. The second operating switch is for inputting a second control command. The memory stores a relationship between the second control command and at least one control terminal identification code associated with the control information. In other words, the memory stores a relationship between the second control command and the at least one control terminal identification code, and the relationship between the second control command and the control information, thereby identifying the second control command and the at least one control terminal. The code is associated with the control information. The control information indicates a predetermined state. The control information causes the at least one load controlled by the control terminal to enter the predetermined state. The second communication device is in communication with the first communication device. The second control device is configured to recognize the second control command received by the second input receiving device. In addition, the second control device is configured to access the memory to obtain the control terminal identification code and control information related to the second control instruction. The second control device is configured to generate a control command for controlling the load to the predetermined state based on an acquired control information. In addition, the second control device is configured to transmit the "command signal including the control command and the control terminal identification code" from the second communication device to the control terminal through the signal line. The control terminal is configured to receive the command signal transmitted from the second communication device via the first communication device via the signal line. The control terminal is configured to control the predetermined load to be in the predetermined state according to the control command when the control terminal identification code of the command signal is equal to the control terminal identification code of the control terminal. The first control device is configured to transmit a status signal to the operating terminal at a predetermined time. The status signal indicates the current status of the predetermined load, and the borrowed predetermined load is controlled by the control terminal. The second control device is configured to recognize the current state of the predetermined load to determine whether the current state is a predetermined state of the load. When the second input receiving device receives the storage instruction of the second input receiving device, the second control device is configured to store the relationship between the current state and the control terminal identification code to the memory.

In this case, non-professional users can also easily log in to the batch control relationship. In particular, non-professional users can easily log in to the relationship for batch control by following the steps below. First, the user operates the control terminal to control the load to a desired state. Subsequently, the second input receiving device of the operating terminal receives the control command for logging in the state of the load. Therefore, it is possible to log the relationship between each of the loads and the state of each of the loads. As a result, non-professional users can easily log in to relationships for batch control.

Preferably, the first control device is configured to transmit the status signal indicating a current state of the predetermined load when the first control device controls the load. The second control device is configured to store a state of the load when the second control device receives the status signal, the state being included in the status signal. The second control device is configured to access the memory when the second input receiving device receives the store command to obtain a state of the load controlled by the control terminal. The second control device is configured to generate a relationship between the loads and a state of the load obtained from the memory, and store the relationship to the memory.

This configuration makes it possible to reduce the traffic between the control terminal and the operating terminal.

Preferably, the second control device is configured to cause the second communication device to send the request signal to the first communication device when the second input receiving device receives the memory command. The first control device is configured to cause the first communication device to transmit the status signal to the second communication device when the first communication device receives the request signal. The second control device is configured to recognize the current state of the load from the status signal. The second control device is configured to generate a relationship between the load and the state of the load. The second control device is configured to store the relationship to the memory.

In this case, it is not necessary to store the state of the load connected to the control terminal. Therefore, this configuration makes it possible to reduce the space consumption of the memory.

Preferably, the second control device is configured to detect the first operational input when the second operational switch is operated for a first period. The second control device is configured to detect the second operational input when the second operational switch is operated for a second period. The second period is longer than the first period. The control device is configured to access the memory and to obtain a control terminal identification code corresponding to the first operational input. The control device is configured to generate a control command for controlling the load. The control device is configured to generate a control signal having the control command and the control terminal identification code, the control terminal identification code being obtained from the memory. The control device is configured to transmit the control signal to the control terminal via the signal line. The second control device is configured to recognize the state of the load controlled by the control terminal when the control terminal receives the second operational input. The second control device is configured to generate a relationship between each of the loads and each state of the load. The second control device is configured to store the relationship to the memory.

With this configuration, the operation switch has a function for controlling the load and also has a function for logging in to the load. In addition, it is possible to prevent the login and the control from being performed simultaneously.

Preferably, the operation terminal is connected to at least one load controlled by the operation terminal. When the second input receiving device receives the second control command, the second control device is configured to control the loads controlled by the operating terminal.

With this configuration, it is possible to directly control the load connected to the operator terminal by means of the operation of the operator terminal.

The load control system will be described below in conjunction with the accompanying drawings. The following embodiment uses a packet transmission as a transmission system for transmitting the transmission signal. However, the transmission system that transmits the transmission signal is not limited to the packet transmission. Therefore, the load control system can utilize other transmission systems than packet transmission.

(First Embodiment)

Figure 1 shows the load control system of this embodiment. The load control system of this embodiment includes a plurality of control terminals 1 and a plurality of operation terminals 2. In particular, the load control system of the present embodiment includes four control terminals and two operation terminals. Each of the control terminals is connected to the loads L. The control terminal 1 is arranged to communicate with the operator terminals 2 via the signal line. In this embodiment, the loads L are exemplified by a lighting load electrically connected to the commercial AC source (AC source). However, the load control system of the present invention is capable of controlling not only the lighting loads L but also other components such as air conditioners, fans, and electric curtains, and the like.

The load control system of this embodiment includes a plurality of control terminals 1. In particular, the load control system of this embodiment includes the control terminals 1A, 1B, 1C, and 1D. The control terminal 1A has an operation switch S11. The operation switch S11 is used to input a control command. The control command is defined as a first control command. The control terminal 1A is set to control the load L, which is directly connected to the control terminal 1A. Therefore, the load L directly connected to the control terminal 1A is controlled by the control terminal 1A. The control terminal 1A has a different illumination function that can turn the load L on or off when the operation switch S11 operates. The control terminal 1B is set to control the loads L directly connected to the control terminal 1B. Therefore, the loads L directly connected to the control terminal 1B are controlled by the control terminal 1B. The control terminal 1B has a plurality of (in particular, two) operation switches S21 and S22. The control terminal 1B is connected to a plurality of (in particular, two) loads L corresponding to the operational switches S21 and S22. The control terminal 1B also has a separate illumination function that can individually turn the illumination elements on or off when the operational switches S21 and S22 are in operation. The control terminal 1C has operation switches S31, S32, and S33. The control terminal 1C is set to control the load L, which is directly connected to the control terminal 1C. Therefore, the load L directly connected to the control terminal 1C is controlled by the control terminal 1C. The control terminal 1C is set to turn on the loads when the operation switch S31 is operated. The control terminal 1C is set to change the light output of the loads L when the operation switch S32 is operated. In contrast, the control terminal 1C is set to change the light output of the loads L when the operation switch S33 is operated. That is, the control terminal 1C has a dimming control function that can change the light output of the load when the operation switch S32 or S33 operates. The control terminal 1D has operation switches S41, S42, and S43. The control terminal 1D is set to control the load L, and the load L is directly connected to the control terminal 1D. Therefore, the load L directly connected to the control terminal 1D is controlled by the control terminal 1D. The control terminal 1D is set to turn on the loads when the operation switch S41 is operated. The control terminal 1D is set to change the light output of the loads L when the operation switch S42 is operated. In contrast, the control terminal 1D is set to change the light output of the loads L when the operation switch S43 is operated. That is, the control terminal 1D has a dimming control function that changes the light output of the load when the operation switch S42 or S43 operates. It should be noted that the control terminals 1A to 1D are collectively referred to as "control terminal 1" if necessary. Further, the operation switches of the control terminal 1 correspond to the first operation switches.

Instead, the operator terminals 2 are not connected to the loads. The operation terminals respectively have a plurality of operation buttons S51 to S53 or S61 to S62. The operation terminals 2 are configured to transmit a packet including a control command to at least one of the control terminals 1 through the signal line Ls. When the control terminal 1 receives the packet, the control terminal 1 controls the loads, which will be controlled by the control terminal 1. In other words, when the control terminals 1 receive the packet, the control terminal 1 controls the load under the control of the control terminal 1. That is, the operator terminals 2 have a remote control function that allows at least one of the control terminals 1 to control the loads controlled by the control terminals 1.

The control terminals 1 and the operation terminals 2 are mounted on a wall such as a building through a frame and a panel.

FIG. 2 shows a circuit block diagram of the control terminal 1. The signal communication unit 12 is configured to convert the packet having the format of FIG. 4(a) into a code and then to convert the encoded packet into a digitally encoded packet. Then, the signal communication unit 12 transmits the digitally encoded packet to the signal line Ls. In addition, when the signal communication unit 12 receives the digital coded packet from the signal line Ls, the signal communication unit 12 is configured to demodulate and decode the digital coded packet. Subsequently, the signal communication unit 12 recognizes the source and destination based on the control terminal identification code assigned to each of the control terminals 1 individually. It should be noted that a physical address unique to a hardware can be used as the control terminal identification code. An example of a physical address unique to a hardware may be a MAC address assigned by the manufacturer of the hardware. In addition, an address arbitrarily assigned by the user may also be used as the control terminal identification code. That is, each of the control terminal identification codes and the operation terminal identification codes are not required to be equal to the other control terminal identification codes and the operation terminal identification codes. The packets transmitted from the control terminals 1 and the operation terminals 2 have a profile such as a control bit for establishing the synchronization, a control bit for setting the type of the data, a destination address, and a source bit. Address, a control command and a checksum. The load control system uses multiple transmissions with CSMA/CD (Carrier Sense Multiple Access/Collision Detection). It should be noted that the communication unit 12 is equivalent to the first communication device. The communication unit 12 is configured to communicate with the communication unit 22 as described below.

The input receiving unit 11 is set to monitor operating conditions of the operation switches S11 and the like. When the operation switch S11 is operated, the input receiving unit 11 receives a first control command. Subsequently, the input receiving unit 11 outputs an operation signal corresponding to the first control command. It should be noted that the operation switches S11 and the like are realized by a push button switch and a joystick (not shown) for pressing the push button switch. For example, the push button switch has a normally open contact. When the button switch is not pressed, the contact is opened, whereby the switch has an open state. When the button switch is pressed, the contact is closed, whereby the switch has a closed state. That is, the input receiving unit 11 recognizes an operation input via the operation switch S11 in accordance with the on or off of the push button switch. It should be noted that the input receiving unit 11 is equivalent to the first input receiving unit.

The control unit 10 has a central processing unit that acts as one of the main components of the controller 10. The control unit 10 receives an operation signal output from the input receiving unit 11. Subsequently, the control unit 10 generates a control signal corresponding to the received operational signal. Then, the control unit 11 sends the control signal to the load working unit 14. The load operating unit 14 of the control terminals 1A and 1B is set to start or stop supplying power from the commercial AC power source to the load based on the control signal. The load operating unit 14 of the control terminals 1C and 1D is also set to supply or de-energize power from the commercial AC power source to the load based on the control signal. Further, the load operation units 14 of the control terminals 1C and 1D are set to adjust the amount of electric power supplied to the loads L per unit time in accordance with the control signals. Therefore, the load operation unit 14 of the control terminals 1C and 1D is set to increase and decrease the amount of light output from the loads L. The function of starting or stopping the supply of power is achieved by means of a conventional relay. Similarly, the function of adjusting the amount of electrical power supplied to the loads per unit time is achieved by means of a phase control system implemented by a conventional three-phase AC switch. Therefore, a detailed description of the configuration of the relay and the three-phase AC switch is omitted here. It should be noted that the control unit 10 corresponds to the first control device. Therefore, the control unit 10 defines the first control device.

The memory 13 is implemented by an electrically rewritable non-volatile semiconductor memory. The memory 13 is, for example, an electronically readable and writable programmable read only memory (EEPROM) and a flash memory. The memory 13 stores information such as the multicast address, a load identification code for identifying a plurality of loads L, and the like. However, when each of the control terminals 1 has an assigned individual control terminal identification code, each memory 13 stores its own control terminal identification code. The display 15 is for operating conditions for displaying the loads L controlled by the control terminals 1. The display 15 has a light-emitting element LD11 and the like (illustrated by an LED) and a driving circuit (not shown) for driving the light-emitting element. The display 15 is configured to turn the light emitting elements on or off based on control signals transmitted from the control unit 10. It should be noted that, as shown in FIG. 1, the light-emitting elements are disposed adjacent to the respective operation switches, whereby the operation switch S11 corresponding to the adjacent light-emitting elements LD11 is easily discernible. The power source 16 receives the AC power from the commercial AC power source and converts the AC power to DC (direct current) power for operating each unit.

The operation of the control terminal 1 will be described below, which controls the loads controlled by the control terminal itself. When the operation switch S1 is operated, the input receiving unit 11 receives the first control command. When receiving the first control command, the input receiving unit 11 generates the operation signal and sends the operation signal to the control unit 10. When the control unit 10 receives the operation signal, the control unit 10 generates the control signal based on the operation signal, and sends the control signal to the load operation unit 14. The control signal reverses the state of the load L. When the load operation unit 14 receives the control signal from the control unit 10, the load operation unit 14 turns off or turns on the relay based on the control signal to reverse the operation state of the load L. (When the load L is in an open state, the load operating unit 14 turns on the relay to turn off the load L when the control signal is received. Conversely, when the load L is in the off state, the load operating unit 14 turns off the load a relay to turn on the load L when the control signal is received.) Further, after the control unit 10 sends the control signal to the load working unit 14, the control unit 10 transmits the control signal to the display 15, The display 15 reverses the state of the light emitting element LD11 upon receiving the control signal. (When the light-emitting element LD11 is in an open state, the display turns off the light-emitting element LD11. Conversely, when the light-emitting element LD11 is in a closed state, the display turns on the light-emitting element LD11.) In the control terminal 1B When a switch S21 is operated, the state of the load L and one of the light-emitting elements corresponding to the switch S21 is reversed. In contrast, operating a switch S22, the state of the load L and one of the light-emitting elements corresponding to the switch S22 is reversed.

In the control terminals 1C and 1D, when the operation switches S31 and S41 are operated, the states of the loads L and the light-emitting elements LD31 and LD41 corresponding to the operation switches S31 and S41 are reversed. Further, when the operation switches S32 and S42 are operated while the load L is in an open state, the operation signal is transmitted from the input receiving unit 11 to the control unit 10. When the control unit 10 receives the operation signal, the control unit 10 outputs a control signal for increasing the light output of the load L. The load operating unit 14 controls the drive circuit in accordance with a control signal for increasing the light output of the load L to increase the amount of electric power supplied to the load L per unit time. Further, when the operation switch S33 or S43 is operated while the load L is in an open state, the input receiving unit 11 transmits the operation signal to the control unit 10. When the control unit 10 receives the operation signal, the control unit 10 outputs the control signal for reducing the amount of electric power supplied to the load L per unit time. The load operating unit 14 controls the drive circuit in accordance with a control signal for reducing the amount of electric power supplied to the load L to reduce the amount of electric power supplied to the load L per unit time. These operations are performed when the load L is in an open state. However, it is not limited to this. That is, such operations can be performed when the load L is in the off state. In this case, when one of the operation switches S32, S42, S33, and S43 is operated while the load L is in the off state, the load operation unit 14 controls the drive circuit to open the load L. Subsequently, the load working unit 14 increases or decreases the power supplied to the load L per unit time in accordance with the operation of one of the operation switches S32, S42, S33, and S43. Further, preferably, when the operation switch S31 or S41 is operated, the control unit 10 is set to store the dimming level of the load L to the memory to turn off the load L. In this case, the control unit 10 is configured to read the dimming level from the memory and control the load working unit 14 so that the load L is in the dimming level output light stored in the memory. . In this case, it is possible to restart the load L immediately at the last dimming level.

FIG. 3 shows a circuit block diagram of the operation terminal 2. As shown in FIG. 3, the operation terminal 2 includes a control unit 20, an input receiving unit 21, a signal communication unit 22, a memory 23, a display 24, and a power source 25. The signal communication unit 22 is arranged to convert the packet (as shown in Figure 4(a)) into an encoding and is then arranged to tune the encoded packet into a digitally encoded packet. Then, the signal communication unit 22 transmits the digital coded packet through the signal line Ls. In addition, when the signal communication unit 22 receives the digital coded packet, the signal communication unit 22 decodes the digital coded packet to identify the identification code in the digital coded packet, whereby the signal communication unit 22 recognizes the source and destination. It should be noted that the communication unit 22 is equivalent to the second communication device. Therefore, the communication unit 22 defines the second communication device.

The input receiving unit 21 is set to monitor operating conditions of the operational switches S51, S52, S53, S61, and S62. When the operation switches S51 are operated, the input receiving unit 21 receives a control command. When the operation switches S51 are operated, a control command is generated. The control command generated when the operation switch S51 is operated defines a second control command. According to the operation of the operation switch S51, the input receiving unit 21 receives the second control command. Subsequently, the input receiving unit 21 outputs an operation signal corresponding to the control command. It should be noted that the operation switches S51 and the like are realized by a push button switch and a joystick (not shown) provided for pressing the push button switch. For example, the push button switch has a normally open contact. When the button switch is not pressed, the contact is open, whereby the switch has an open state. When the button switch is pressed, the contact is closed, whereby the switch has a closed state. That is, the input receiving unit 21 recognizes an operation input via the operation switches S51 in accordance with the on or off of the push button switch. It should be noted that the input receiving unit 21 corresponds to a second input receiving device. Therefore, the input receiving unit 21 defines the second input receiving device.

The control unit 20 has a central processor that acts as one of the main components of the control unit 20. When the input receiving unit 21 receives the second control command, the input receiving unit 21 transmits an operation signal corresponding to the second control command. The control unit 20 receives the operation signal output from the input receiving unit 21. Subsequently, the control unit 20 generates a control command corresponding to the received operational signal. The memory 23 is realized by an electrically rewritable non-volatile semiconductor memory. The memory 13 is such as an EEPROM and a flash memory. The memory 23 stores the control terminal identification codes, the multicast address, the operation terminal identification codes other than themselves, and the information of the states of the loads L operated according to the batch control. The "control terminal identification code", "the multicast address" and "the operation other than itself" corresponding to a group or a type of the operation switch S51 (as described below) The information of the terminal identification code is used to perform batch control for controlling the loads L, and the loads L are controlled by the control terminal 1 and also belong to the control terminal 1. It should be noted that the control unit 20 corresponds to the second control device. Therefore, the control unit 20 defines the second control device.

The display 24 is for displaying operating conditions controlled by the control terminal 1, belonging to the control terminal 1 and the loads L corresponding to the operation switch S51. The display 24 includes light emitting elements LD51, LD52, LD53, LD61 and LD62 (illustrated by LEDs), and a driving circuit (not shown) for driving the light emitting elements. When all of the loads L controlled according to the batch control (such as group control and mode control) are in an open state, the drive circuit turns off the load L when receiving the control signal transmission from the control unit 20. The drive circuit turns on the light-emitting elements LD51 when at least one of the loads L controlled according to the batch control (such as group control and mode control) is in an open state. It should be noted that, as shown in FIG. 1, the light-emitting elements are disposed adjacent to the operation switches, whereby the operation switch S51 can be easily recognized to correspond to the adjacent light-emitting elements LD51. The power source 25 receives the AC power from the commercial AC power source and converts the AC power to DC power to operate each unit.

The batch control is explained below. Batch control is divided into group control and mode control. When the load L is realized by the illumination load L, the mode control is also referred to as scene control. The group control system is a control scheme that controls the loads L in the same group to the same operational state in the chunk. The mode control is a control scheme that controls the load L in the same mode group to a predetermined state for each load. In this embodiment, the operation switches S51 to S53 of the operation terminal 2A correspond to group control. The operation switches S61 and S62 of the operation terminal 2B correspond to mode control.

For example, the group control corresponding to the operation switch S51 divides all of the control terminals 1A to 1D connected to the signal line Ls into a group. The group control corresponding to the operation switch S51 performs control to turn all the loads L on or off, and all the loads L are connected to and controlled by the control terminals 1A to 1D in the same group. The memory 23 of the operation terminal 2A stores the relationship between the "operation switch S51" and the "control terminal identification codes of the control terminals 1A to 1D belonging to the same group".

The mode control corresponding to the operation switch S61 groups the control terminals 1A to 1D into a first mode group. The mode control corresponding to the operation switch S61 performs control for opening and adjusting the dimming level of the loads L, and the loads L are under the control of the control terminals 1A to 1D. In this embodiment, when the mode control is executed, the loads L under the control of the control terminal 1A and the control terminal 1B are turned on, thereby being operated. The load L under the control of the control terminal 1C is turned on to a 50% dimming level, thereby operating in the 50% dimming level. The load L under the control of the control terminal 1D is turned on to a 70% dimming level, thereby operating in the 70% dimming level. The memory 23 of the operation terminal 2B stores the relationship between the "operation switch S61" and the "control terminal identification codes of the control terminals 1A to 1D", which relationship is "within the control terminals 1A to 1D". The control information (dimming level) of each load under control is associated.

In addition, the mode control corresponding to the operation switches S62 groups the control terminals 1C and 1D into a second mode group. The mode control corresponding to the operation switch S62 performs the control of turning on the loads L belonging to the control terminal 1C and dimming them to a 70% dimming level; and opening the loads L belonging to the control terminal 1D and Dim it to a 30% dimming level control. The memory 23 of the operation terminal 2B stores the relationship between the "operation switch S62" and the "control information for each load L associated with the control terminal identification codes of the control terminals 1C and 1D". It should be noted that which loads L can be arbitrarily grouped into groups or mode groups. Further, as described below, the control terminals 1A to 1D transmit the status of the load L to the operation terminal 2. The operation terminal 2 stores the state of the load to the memory 23.

Next, an operation of performing batch control (group control and mode control) by the operation terminal 2 will be described.

First, the operation of performing group control by the operation terminal 2A will be described with reference to the sequence shown in FIG. When the operation switch S51 of the input receiving unit 21 is operated, the input receiving unit 21 receives a control command. The input receiving unit 21 transmits the operation signal to the control unit 20 according to a control command. The control unit 20 receiving the operation signal accesses the memory 23 to obtain the relationship. The control unit 20 obtains (in the control terminals 1A to 1D) the latest state of the loads L and the control terminal identification codes (of the control terminals 1A to 1D), both of which correspond to the operation Signal (generated by the operation of the operation switch S51). If all states of the loads L obtained from the memory 23 are the same, the control unit 20 generates a control command indicating a state of inverting the loads L, and the state of the loads L is related to the memory. The body 23 obtains the current state of the loads L and reverses the state of the loads L. (In particular, if all loads L are in an open state, the control unit 20 generates a control command indicating that the loads L are closed. Conversely, if all the loads L are in a closed state, the control unit 20 generates an indication that the loads L are open. Control command.) In addition, the control unit 20 generates the data (set to the control command generated by the control unit 20), the destination address (set to the multicast address), and the source address (set to The packet of its own operating terminal identification code). That is, the control unit 20 generates a packet equivalent to the command signal. Subsequently, the control unit 20 sends the packet (command signal) from the communication unit 22 to the signal line LS. It should be noted that the control command has command information (load control as shown in FIG. 4(b) in this embodiment), the control terminal identification code (control terminals 1A to 1D controlled by the operation terminal 2), and This control information (for controlling the loads that will be turned on or off in this particular embodiment). Furthermore, the packet (command signal) having the destination address equal to the multicast address is received by all control terminals 1 and all operating terminals 2 constructing the load control system.

Each of the control terminals 1A to 1D receives the packet (command signal) via the communication unit 12, and transmits the packet to the control unit 10. The control unit 10 receives the packet (command signal), and then checks whether "the identification code in the control command of the packet (command signal)" includes "the control terminal's own control terminal identification code". If the control unit 10 recognizes that the identification code in the control command of the packet includes the control terminal's own identification code, the control unit 10 generates a control signal. The control signal is developed based on control information associated with the identification code. In addition, the control signal is used to turn the load L on or off. The control unit 10 then sends the control signal to the load operating unit 14. As indicated by the control signal, the load operating unit 14 turns the relay on or off to turn the loads L on or off. Furthermore, the control unit 10 generates a packet (which is defined as a status signal) after a predetermined period of operation of the relay. The packet (status signal) has the destination address, the source address, and the status of the load L. The destination address is set to the source address of the packet (command signal) received by the control terminal 1A, whereby the destination address is set as the operation terminal 2A. The source address is set to the control terminal's own control terminal identification code. The states of the loads L indicate the states of the loads L after the loads L are controlled. In particular, the states of the loads L indicate the states L of the loads after the loads L are turned on or off. Subsequently, the control unit 10 transmits the packet (status signal) from the communication unit 12 to the signal line Ls. Furthermore, the control unit 10 operates the display 15 to display the states of the loads L after the loads L are controlled.

On the other hand, the operation terminal 2A receives the packet (status signal) via the communication unit 22, and then transmits the packet (status signal) to the control unit 20. The control unit 20 stores the states of the loads L in the packets (status signals) to the memory 23. Then, when the control unit 20 receives a packet (status signal) indicating the states L of the loads under the control of the control terminals 1A to 1D of the operation switch S51, the control unit 20 operates the display. 24 to display the states of the loads L after the loads L are controlled. For example, when all the loads L are turned on and thereby turned on, the light-emitting element LD 51 is turned off, thereby being in a closed state. In contrast, when all the loads L are turned off and thereby turned off, the light-emitting element LD 51 is turned on, thereby being in an open state. In this manner, the display 24 indicates the states of all of the loads L by the state of the light-emitting element LD51. (When the light-emitting element LD51 is in an open state, the light-emitting elements LD51 indicate that all the loads L are in a closed state. When the light-emitting elements LD51 are in a closed state, the light-emitting elements LD51 indicate that all the loads L are in an open state. With this configuration, it is possible to easily identify the need for this batch control because the light emitting elements indicate these states of all of these loads L. Therefore, it is not necessary to install the indicator lights that respectively indicate the states of the loads L to the operation terminal.

If the operation terminal 2 does not receive the packets (status signals) from at least one of the control terminals 1A to 1D, the control unit 20 of the operation terminal 2A will generate the packet (retry signal). Hereinafter, a case where the operation terminal 2A cannot receive a packet (status signal) indicating the states of the loads L from the control terminals 1D will be described. When the operation terminal 2A cannot receive the packet (status signal) indicating the status of the load L from the control terminal 1D, the operation terminal 2A will generate a packet (retry signal) having the destination address and the control command. The destination address is equal to the control terminal identification code of the control terminal 1D that the operation terminal 2A cannot receive the packet (status signal), whereby the destination address in the present description is equal to the control terminal identification code of the control terminal 1D. The control command includes an instruction to allow the control terminal 1D to transmit the states of the loads to the operating terminal 2A. Subsequently, the control unit 20 of the operation terminal 2A transmits the packet (retry signal) from the communication unit 22 to the signal line. Therefore, when the control terminal 1D receives the packet (retry signal), the control terminal 1D transmits the packet (status signal) of the state with the load L back to the operation terminal 2A. Therefore, the control unit 20 of the operation terminal 2A stores the states of the loads to the memory 23. On the other hand, when the operation terminal 2A transmits a packet (retry signal) with an instruction to transmit the states of the load L, the operation terminal 2A cannot receive the load from the control terminal 1D. When the packet of the state of L is in the state (state signal), the operation terminal 2A recognizes that the control terminal 1D has an error. Subsequently, the operation terminal 2A notifies the error of the control terminal 1D by blinking the light-emitting element LD51 of the display 24. In addition, when the control unit 20 receives a packet (status signal) indicating the status of the load L from all of the control terminals 1A to 1D, the control unit 20 generates a packet (transmission signal) for use in the control unit 20 The latest status of the loads obtained from the packet (status signal) is transmitted to the other operator terminal 2B. That is, the packet (transmission signal) has a control command, a destination address, and a source address. The control command indicates an instruction that is transmitted to the other operating terminal 2B from the latest state of the load L obtained from the packet (status signal). The destination address is determined to be a second multicast address equal to the operator terminals 2. The source address is determined by the operation terminal's own operation terminal identification code. Subsequently, the control unit 20 transmits the packet (transmission signal) to the signal line Ls. When the operation terminal 2B receives the packet (transmission signal) from the operation terminal 2A instead of the operation terminal 2A, the control unit 20 of the operation terminal 2B will "after obtaining the control terminal control from the packet (transmission signal)" The states of the loads L and the states of the loads L before the control terminals are controlled are stored in the memory. Subsequently, the operation terminal 2B transmits the ACK packet (confirming that the packet is received from the operation terminal 2A) to the operation terminal 2A by unicast. However, when the operation terminal 2A cannot receive the ACK packet, the operation terminal 2A resends the packet for transmitting the states of the load L.

Next, the mode control (second mode control) of the operation terminal 2B will be described with reference to FIG. When the operation switch S62 of the operation terminal 2B is operated, the input reception unit 21 outputs the operation signal to the control unit 20 of the operation terminal 2B. The control unit 20 receives the operational signal and subsequently accesses the memory to obtain the relationship. Then, the control unit 20 obtains control terminal identification codes (of the control terminals 1C and 1D) and control information (the load L controlled by the control terminals 1C and 1D), both from the operation switch S62. The control instructions are related. The control terminal identification codes indicate the control terminals 1C and 1D. The control information includes an instruction for the loads L controlled by the equal control terminals 1C and 1D. When the loads L are operated by the control terminals 1C and 1D, the control information further includes the dimming level of the loads L. Based on the control information obtained from the memory 23, the control unit 20 generates a control command to open the load L under the control of the control terminal 1C to the 70% dimming level; and the load L under the control of the control terminal 1D. Turn on to the 30% dimming level. Subsequently, the control unit 20 of the control unit 20B generates a packet (command signal) having control information, a destination address, and a source address. The destination address is set to the multicast address. The source address is set to the operator terminal identification code assigned to the operator terminal itself. Then, the control unit 20 transmits the packet (command signal) from the communication unit 22 to the signal line Ls. It should be noted that the control command has no control information and does not have the identification codes of the control terminals 1A and 1B because the control terminals 1A and 1B do not belong to the second mode group.

In each of the control terminals 1A to 1D, when the communication unit 12 receives the packet (command signal), the communication unit 12 transmits the packet (command signal) to the control unit 10. Each control unit 10 of the control terminals 1A and 1B compares the identification code in the packet with the control terminal identification code of the control terminal itself. However, the packets do not contain an identification code equal to the control terminal identification code of the control terminals 1A and 1B. Thus, each of the control terminals 1A and 1B does not control any load and generates a packet (status signal) having information indicative of the current state (lighted or unlit) of the loads. Subsequently, the control unit 10 transmits the generated packet (status signal) to the signal line Ls. On the other hand, each control unit 10 of the control terminals 1C and 1D also compares the identification code in the packet (command signal) with the control terminal identification code of the control terminal itself. In this case, the packet (command signal) includes the identification code, which is equal to the control terminal identification code of the control terminals 1C and 1D. Therefore, each control unit 10 of the control terminals 1C and 1D recognizes control information corresponding to the control terminal's own identification code. Then, each control unit of the terminals 1C and 1D generates a control signal based on the control information of the packet (command signal), and controls the signal (for controlling the load to open and operate the tone indicated by the control signal) The light level is sent to the load working unit 14. Based on the control signal transmitted from the control unit 10, the load operating unit 14 controls the drive circuit to adjust the amount of electric power supplied to the load per unit time. In addition, each control unit of the control terminals 1C and 1D generates a packet (status signal) after a predetermined waiting period has elapsed since the reception of the control command. The packet (status signal) contains the destination address, source address, and data. The destination address is equal to the source address in the control command of the received packet (command signal). The source address is equal to the control terminal's own control terminal identification code. The data indicates the status of the loads after the loads are controlled by the load operating unit 14. Then, the control unit 10 transmits the packet (status signal) to the signal line Ls. That is, the control unit 10 transmits the packet (status signal) to the signal line at a predetermined time. Furthermore, the control unit 10 controls the control terminal's own display 15 so that after the loads are controlled by the load operating unit 14, the display 15 displays the states of the loads L.

In the operation terminal 2B, when the communication unit 22 receives the packet (status signal), the communication unit 22 transmits the packet (status signal) to the control unit 20. The control unit 20 recognizes the current state of the loads L from the received packets (status signals), and stores the current states of the loads L to the memory 23. Then, when the control unit 20 receives the packet (status signal) for notifying all the states L of the load, and the packet is controlled by the control terminals 1C and 1D and belongs to the second mode group corresponding to the operation switch S62. At this time, the control unit 20 controls the display 24 to turn on the light-emitting element LD62. By illuminating the light-emitting element LD62, it is notified that the load L controls the operating condition based on the second mode. In addition, after the control unit 20 receives the packets (status signals) for notifying the states of the loads L from the control terminals 1A to 1D, the control unit 20 generates a control command for the loads. The latest state of L (obtained from the received packet) is transmitted to the other operator terminal 2A. Then, the control unit 20 generates a packet (transmission signal) having a destination address (set to the second multicast address) and a source address (set to the operation terminal ID of the operation terminal 2B) And data (set to control commands based on received packets). Then, the control unit 20 transmits the packet (transmission signal) from the communication unit 22 to the signal line Ls. The packet (transmission signal) is received by the other operation terminal 2A. The control unit 20 of the operation terminal 2A stores "the latest state of the load L" and "the state of the load L before the load L is controlled by the control terminal" to the memory of the operation terminal 2A. Body 23. It should be noted that the operation of the first mode control is the same as the operation of the second mode control. Therefore, the description of the operation of the first mode control is omitted here.

As described above, in the load control system in this embodiment, the loads L controlled by the control terminal 1 can be directly controlled by operating the operation switches S11 of the control terminal 1. Further, the loads L controlled by the control terminal 1 can be controlled from the remote end by operating the operation switches S51 connected to the operation terminal 2 of the control terminal 1 through the signal line Ls. In addition, the operation terminal 2 and the control terminals 1 transmit the packet including the control command to the other terminal through the signal line Ls. Therefore, even if the operation terminal 2 or the control terminal 1 fails, or the signal line Ls is interrupted, there is no possibility that the system does not stop. In addition, when the operation terminal 2 receives a plurality of the control terminals 1 from the remote control block, the operation terminal 2 transmits a packet (command signal) having the control command to the multicast transmission method to A plurality of such control terminals 1. (When the operation terminal 2 is from the plurality of the control terminals 1 in the remote control block, the operation terminal 2 will not have any unicast transmission, but will have the packet of the control command (command signal) It is transmitted to a plurality of such control terminals 1.) Therefore, the operation terminals 2 can control the loads L that are controlled by the operation terminals 2 in the block. That is, the system has an advantage of improving the responsiveness and stability of the load control as compared with the conventional central control type system.

Next, the steps of registering the relationship of the batch control with respect to the operation terminal 2 will be described. (This relationship represents the group in the group control and the mode group of the mode control.)

The steps of logging in the group control group to the operation terminal 2 are illustrated by the sequence of FIGS. 7 and 8. It should be noted that the "operation mode" indicates a normal operation mode for performing the individual control or the batch control described above.

First, when the mode selection switch (not shown) of the input receiving unit 21 of the operation terminal 2A is operated, the input receiving unit 21 receives the control command (which corresponds to a storage instruction). Upon receiving the store instruction, the input receiving unit 21 transmits an operation signal to the control unit 20. Upon receiving the operation signal from the input receiving unit 21, the control unit 20 switches the operation mode to the login mode. It should be noted that the input receiving unit 21 can switch the operation mode to the login mode without providing the mode selection switch. The input receiving unit 21 can be utilized to set an instruction to switch the normal mode to the login mode when the operating switch is pressed for a predetermined period of time. In this case, when an instruction to switch the normal mode to the login mode is detected, the input receiving unit 21 transmits an operation signal for switching the mode to the login mode.

When the operation switch S51 of the operation terminal 2A is pressed under the condition that the operation terminal 2a has the login mode, the input reception unit 21 (which receives the control command) transmits an operation signal to the control unit 20. The control unit 20 transmits a control signal to force the display 24 to blink corresponding to the light emitting element LD1 of the operation switch S51, whereby the display 24 notifies the user that the operation terminal 2A has a login mode. Further, the control unit 20 generates a control command indicating that the control unit 10 of the control terminal 1 switches the normal mode to the login mode. Then, the control unit 20 generates a packet (login signal), and the packet has a control command, a destination address (set to the multicast address), and a source address (set to the operation terminal's own operation terminal identification code). ). The control unit 20 transmits the packet (login signal) from the communication unit 22 to the signal line Ls.

When the operation terminal 2 receives the packet (login signal), the control unit 10 of the control terminal 1 switches the operation mode to the login mode based on the control command in the packet (login signal) transmitted from the operation terminal 2. When the control terminal 1 has the login mode, whether the load L under the control terminal 1 is included in the group control group can be selected by pressing the operation switch S11 for a predetermined period of time. That is, if the operation switch S11 is pressed for a predetermined period, when the group control is executed, the loads L under the control terminal 1A are controlled. On the other hand, if the operation switch S11 is not pressed, even if the group control is executed, the loads L under the control terminal 1A are not controlled. When the control terminals switch from the operation mode to the login mode, it is set that the control terminals are not included in the group control. Therefore, if the user desires that the group control includes the loads L controlled by the control terminal 1C, the operation switch S31 is pressed for a predetermined period. Therefore, the input receiving unit 11 recognizes the input of the group control. Subsequently, when the input receiving unit 11 receives the control command by the operation of the operation switch S31, the control unit 10 determines that the setting of the control terminal 1 that controls the control terminal 1 is the first when the group control is executed. The second mode group generates the setting result indicating the setting. The control unit 10 then generates a packet (decision packet) containing the setting result and the destination address (set to the operator terminal identification code of the operating terminal 2A). Then, the control unit 10 transmits the packet (determination packet) from the communication unit to the signal line Ls by the method of unicast transmission. It should be noted that the control unit 20 of the operation terminal 2A temporarily stores the selection result from the control terminal 1C to the memory 23. Further, when the setting result indicates that the group includes the control terminal 1C, the control unit 10 of the control terminal 1C controls the display 15 so that the light-emitting element LD31 flashes at a first predetermined period. On the other hand, when the setting result indicates that the group does not include the control terminal 1C, the control unit 10 of the control terminal 1C controls the display 15 so that the light emitting element LD31 is shorter than the first predetermined period. The second predetermined period of flashing. Therefore, the control terminals 1 notify the user of the input of the group. However, the means for displaying whether the setting is included in the group is not limited thereto.

In the same step, when the operation switches S11 of the control terminals 1A, 1B, and 1D are operated, the control unit 20 of the operation terminal 2A temporarily stores the setting result to the memory 23, respectively.

After performing the selection operation of the control terminals 1A to 1D in the group, the input receiving unit 11 will switch the mode operation signal when the user performs the mode selection switch operation of the operation terminal 2A (equal to A control command to store the completion command is sent to the control unit 20. When the control unit 20 receives the operation signal, the control unit 20 registers "the control terminal identification code of the control terminals 1A to 1D belonging to the group" as an identification code of the control terminal, wherein the control terminal is The group is controlled when it is controlled by the batch control. In other words, when the control unit 20 receives the operation signal, the control unit 20 updates the "control terminal identification codes belonging to the control terminals 1A to 1D of the group" to the identification code of the control terminal, wherein the control The terminal is controlled when the group is controlled by the batch control. In other words, when the control unit 20 receives the operation signal, the control unit 20 rewrites the "control terminal identification codes of the control terminals 1A to 1D belonging to the group" into the identification code of the control terminal. Wherein the control terminal is controlled when the group is controlled by the batch control. Then, the control units 20 switch the login mode to the operation mode. Further, the control unit 20 of the operation terminal 2A generates a control command instructing the control units 10 of the control terminals 1 to switch the login mode to the operation mode. Subsequently, the control unit 20 generates a packet (transmission signal) having a control command (the control unit 10 instructing the control terminals 1 to switch the login mode to the operation mode), and the destination address (which is set to be more The point transfer address) and the source address (which is set as the operation terminal identification code of the operation terminal 2A). Then, the control unit 20 transmits the packet to the signal line Ls. The control unit 10 of the control terminal 1 switches the mode of the control terminal 1 from the login mode to the operation mode. It should be noted that when the control unit 10 switches the login mode to the operation mode, the control unit 10 does not store any information to the memory regardless of whether the control terminal is grouped into the group. Upon completion of the switching from the login mode to the operation mode, the control unit 20 of the operation terminal 2A transmits a control signal to turn on or off the light emitting element of the display 15, thereby turning the light emitting element 15 on or off. Similarly, when the switching from the login mode to the operation mode is completed, each control unit 10 of the control terminal 1 transmits a control signal to turn on or off the light emitting element of the display 24, thereby turning the light emitting element on or off. .

In other words, when any of the operation terminals 2 (for example, the operation terminal 2A) and the control unit 10 of the control terminal 1 have a login mode, even if the operation terminal 2 (2B) operates, the operation terminal 2B (rather than the operator terminal 2A) also does not generate a packet (command signal) for controlling the control terminals from the far end. In other words, when any of the operation terminals 2 (for example, the operation terminal 2A) and the control units 10 of the control terminals 1 have the login mode, even if the operation terminal 2 (2B) operates, The operation terminal 2B (rather than the operation terminal 2A) also does not generate a packet (command signal) for performing mode control for controlling the control terminals. That is, in the above login mode, in the case where the operation terminal 2 (2B instead of the operation terminal 2A) generates a packet (command signal) having a control command for controlling the mode control of the control terminals from the remote end, there is The operation terminal 2 increases the possibility of traffic due to the packet. Therefore, in order to prevent the increase of the traffic, the control unit 20 (2B instead of the operation terminal 2A) of the operation terminal 2 is prohibited from generating and transmitting a packet. However, in the case where there is no problem of increasing the traffic, even if the operation terminal 2B generates and transmits a packet having a control command for performing remote terminal control of the terminals, the operation terminal 2 can be utilized, and the operation terminal 2 The operating terminal 2 is configured to generate and transmit a packet (command signal) having the control command when one of the operating terminals and the control units 100 of the control terminals 1 have a login mode. In this case, when the operation terminal 1A has the login mode, the operation terminal 2B (rather than the operation terminal 1A) is set to discard the control command in the packet.

On the contrary, even when the operation terminals 2 have the login mode, the control terminal 1 can control the loads L that are controlled by the control terminal itself when the operation switches S11 of the control terminal 1 are operated. This is because there is no possibility of increasing the flow rate even when each of the control terminals 1 controls the loads L directly controlled by the control terminal.

It should be noted that the identification code of the control terminal 1 relative to the mode group (the first mode group and the second mode group) controlled by the operation terminal 2B in the above manner may also be registered (updated, rewritten). Therefore, the description of the steps of registering the identification code is omitted here. However, when the operation terminal 2 has the login mode, the dimming level of each load L is also registered (updated, rewritten). Therefore, the steps of registering the dimming level of each load L will be described below.

First, the dimming level of the load L is adjusted by operating the operation switches S32, S33, S42, and S43. Subsequently, when the operation switch S62 is pressed for a predetermined period, the input receiving unit 21 recognizes a control command for registering the state of the load L to the control unit 20. This control instruction is defined as a store instruction. Then, the input receiving unit 21 transmits a storage instruction for registering (updating, rewriting) the state of the load L to the control unit 20. Upon receiving the storage instruction for logging in the state of the load L, the control unit 20 of the operation terminal 2B obtains the control terminal identification codes of the control terminals 1C and 1D, which are grouped into the second mode group corresponding to the operation switch S62. . Subsequently, the control unit of the operation terminal 2B generates a packet (request signal) having command data, (the instruction returns the current state (dimming level) of the load L), and a destination address (which is set to each The control terminal identifies the code and transmits the packet (request signal) from the communication unit 22 to the signal line Ls by means of the unicast transmission.

When the operation terminal 2B receives the packet (request signal), the control unit 10 of each of the control terminals 1C, 1D generates a packet (status signal) having data (indicating the load stored in the memory 13). The current state of L (dimming level), the destination address (which is set as the source address of the packet from the operating terminal 2B), and the source address (which is set to the control terminal's own control terminal identification code) . Then, the control unit 10 transmits the packet (status signal) to the signal line Ls by means of the unicast transmission.

The control unit 20 of the operation terminal 2B receives the packet (status signal) from the control terminals 1C and 1D, and then recognizes the current state (dimming level) of the load L from the packet (status signal). Subsequently, the control unit 20 determines that the current state of the dimming level of the loads L is the control command of the respective load L in the second mode control. The control unit 20 then stores the control commands of the loads L in the second mode control to the memory 23. It should be noted that the operation terminal 2A performs only group control. Therefore, the operation terminal 2A that performs only group control does not need to determine the dimming level of each load L. Therefore, the operation terminal 2A does not need to perform the above login.

As described above, after the state of the load L (the dimming level of the loads L) is adjusted, the input receiving unit 21 of the operation terminal 2 receives the functions for registering (updating, rewriting) the loads. Status control command (storage command). Therefore, the control unit 20 registers (updates, rewrites) the relationship between the current state of the load L and each of the loads L to the memory 23. Therefore, non-professional users can also easily log in the relationship for the batch control (mode control). In this embodiment, the control unit 20 that receives the operation signal for logging in the load L state of the operation terminal 2 sends a packet (request signal) indicating that the state of the load L is returned to the mode group to be registered. Group control terminal 1. However, as described above, each time the control terminal 1 belonging to the mode group controls the load L, the control terminal 1 is set to transmit "the state of the load L after the load L is controlled by the control terminal 1" "." Further, the control unit 20 temporarily stores the state of the load L transmitted from the control terminal to the memory 23. Therefore, the control unit 20 of the operation terminal 2 can obtain the state of the load L under the control of the control terminal 1 from the memory 23. In the former case, it is not necessary to store the state of the load L connected to the control terminal 1 to the memory 23. Therefore, the former case has an advantage of reducing the space consumption of the memory 23. In the latter case, it is not necessary to transmit a packet (request signal) in a state in which the command is transmitted to the load L to the control terminal 1. Therefore, the latter case has an advantage of reducing the flow between the control terminal 1 and the operation terminal 2.

In other words, the operation terminal 2B in this embodiment includes the input receiving unit 21, which is set to receive a control command (storage command) for operating the switch S62 of the operation terminal 2B for a predetermined period of time. The status of the load L is registered when pressed. That is, the control unit 20 of the operation terminal 2B is set to recognize a first operation input and a second operation input. The control unit 20 of the operation terminal 2B is set to recognize the first operation input when the operation switch S61 (or S62) is pressed during the first predetermined period. The control unit 20 of the operation terminal 2B is set to recognize the second operation input when the operation switch S61 (or S62) is pressed during the second predetermined period. The second predetermined period is longer than the first predetermined period. When the control unit 20 receives the first operational input, the control unit 20 performs batch control (mode control). In contrast, when the control unit 20 receives the second operational input, the control unit 20 performs a process of logging in the state of the load L. In this way, the operating terminal 2 has the operating switch S62 acting as a switch for generating the first operational input and also for generating the second operational input. Further, the operation terminal 2 does not simultaneously perform the mode control and the process for registering the load state. Therefore, this configuration makes it possible to increase the convenience of the terminal.

(Second embodiment)

Figure 9 shows a system diagram in this embodiment. In the load control system of this embodiment, the operation terminal 2 is almost the same as the operation terminal 2 of the first embodiment. Further, the operation terminal 2 is connected to the load L and is set to directly control the load L. In other words, the load control system of this embodiment includes the control terminal 1A, and the control terminals 1B to 1D different from the control terminal 1A. To facilitate the understanding of the present invention, the control terminal 1A is hereinafter referred to as "first control terminal 1A". These control terminals 1B to 1D are hereinafter referred to as "second control terminals 1B to 1D". The first control terminal 1A is set to control the second control terminals 1B to 1D from the far end. The second control terminals 1B to 1D do not have the function of controlling other control terminals from the far end. Therefore, the first control terminal 1A is different from the second control terminals 1B to 1D in terms of functions of controlling other control terminals from the far end. It should be noted that the load control system of this embodiment has components that are substantially identical to those of the load control system of the first embodiment. Therefore, the components of the same load control system as the first embodiment have the same component symbols as in the first embodiment.

Each of the second control terminals 1B to 1D has components common to the components of each of the control terminals 1B to 1D. Further, the operation terminal 2 corresponds to the first control terminal 1A of this embodiment. The first control terminal 1A also has the basic components common to the components of each of the second control terminals 1B to 1D. Therefore, the detailed description and illustration of the first control terminal 1A are omitted here.

In the first control terminal 1A, the operation switch S51 corresponds to the group control explained in the first embodiment. The operation switches S52 and S53 correspond to the first mode control and the second mode control, respectively. The memory 13 stores the relationship between the operation switches S51 to S53 and the control terminal identification codes of the respective control terminals 1B to 1D, and the control between the operation switches S51 to S53 and the respective control terminals 1B to 1D. The relationship between information (dimming level). In other words, the memory 13 stores the relationship between the operation switches S51 to S53 and the control terminal identification codes of the respective control terminals 1B to 1D associated with the control information (dimming level) of the respective control terminals 1B to 1D. .

Next, the operation of the first control terminal 1A that performs the group control will be explained. When the operation switch S51 of the first control terminal 1A is operated, the input receiving unit 11 transmits the operation signal to the control unit 10. Upon receiving the operation signal, the control unit 10 accesses the memory to obtain "the latest state of the loads L connected to the second control terminals 1B to 1D" and "the second control terminals" The control terminal identification codes of 1B to 1D, both of which correspond to the operation signals transmitted when the operation switch S51 is operated. The control unit 10 identifies the current status of the loads L from the obtained data. When the control unit 10 recognizes that all of the loads L have the same state, the control unit 10 generates a control command for switching the state of the load L to the inverted state. (When the control unit 10 recognizes that all of the loads L are lit, the control units 10 generate a control command for turning off the loads L. Conversely, when the control unit 10 recognizes that all the loads L are not lit, the control Unit 10 generates a control command for opening the light.) When the control unit 10 recognizes that one of the loads L has a different state than the other loads L, the control unit 10 generates a control command for use in Switch all loads L to the same state. (When the control unit 10 recognizes that the one load L is lit and the other loads L are not lit, the control unit 10 generates a control command for turning on or off all of the light load L.) Further, the control The unit 10 generates a packet (command signal) having data (which is set as the control command), a destination address (which is set to the multicast address), and a source address (which is set to be the control terminal 1A) The terminal identification code is controlled, and the packet (command signal) is sent from the communication unit 12 to the signal line Ls.

In the second control terminals 1B to 1D, when each of the communication units 12 receives the packet (command signal), the communication unit 12 transmits the packet (command signal) to the control unit 10. The control unit 10 determines whether the destination address of the packet (command signal) is equal to the second control terminal identification code of the second control terminal. When the control unit recognizes that the control command of the packet (command signal) includes a destination address equal to the second control terminal identification code of the second control terminal, the control unit 10 generates a control signal for The control information of the second control terminal identification code turns on or off the loads L under the control of each of the second control terminals. The control unit 10 sends the control signal to the load working unit 14. Upon receiving the control signal, the load operating unit 14 turns the relay on or off according to the control signal, whereby the load working unit 14 turns the load L on or off. Further, the control unit 10 generates a packet (status signal) after a predetermined time elapses. The packet (status signal) has data (which indicates the state of the load L after the load L is controlled), a destination address (which is equal to the identification code of the source address of the packet received by the second control terminal), And a source address (which is set to the second control terminal's own control terminal identification code). The control unit 10 then transmits the packet (status signal) from the communication unit 12 to the signal line Ls. That is, the control unit 10 transmits the packet (status signal) at a predetermined time. Furthermore, the control unit 10 controls the display 15 such that the display 15 indicates the states of the loads L after the loads L are controlled by the second control terminals.

On the other hand, in the first control terminal 1A, the communication unit 12 receives the packet (status signal) and transmits the packet (status signal) to the control unit 10. The control unit 10 recognizes the current state of the load L from the packet (status signal). The control unit 10 stores the state of the load L in the packet (status signal) to the memory. Then, when all of the second control terminals in the group corresponding to the operation switch S51 receive the packet (status signal), the control unit 10 controls the display to change the indication of the display 15. (For example, when all the loads L are turned on, the light-emitting element LD51 is turned off. Conversely, when all the loads L are turned off, the light-emitting element LD51 is turned on.) Hereinafter, the first control terminal 1A cannot be controlled from the second The terminal 1D receives a packet (status signal) for notifying the load status. If the first control terminal 1A cannot receive the packet (status signal) from one of the second control terminals 1D, the control unit 10 of the first control terminal 1A will generate a packet (retry signal) containing the destination address. (which is set as the control terminal identification code of the second control terminal 1D of the untransmitted packet), the source address (which is set as the control terminal identification code of the first control terminal 1A), and a control command (which indicates the transmission notification) The packet of the state of the load L). Then, the first control terminal 1A transmits the packet (retry signal) to the signal line Ls. When the packet (status signal) is returned from the second control terminal 1D, the control unit 10 of the first control terminal 1A stores the state of the load in the packet (status signal) to the memory 13. On the contrary, when the packet (status signal) is not returned from the second control terminal 1D, the control unit 10 controls the display 15 to blink the light emitting element LD51, whereby the display 15 notifies the user of the error. .

Subsequently, the operation of the mode control (the second mode control) will be described with reference to the sequence diagram of FIG. When the operation switch S53 of the first control terminal 1A is operated, the input receiving unit 11 receives a control command. Upon receiving the control command, the input receiving unit 11 transmits the operation signal to the control unit 10. When the control unit 10 receives the operation signal, the control unit 10 accesses the memory to obtain the "control terminal identification codes of the control terminals 1C and 1D", and "and each of the control terminals 1C" And the control command related to the load L of the 1D control, both of which are related to the operation signal when the operation switch S53 is operated. Then, the control unit 10 generates a control command based on a control command (the second mode control) from the memory 13. The control command includes an indication that the control terminal 1C turns on the load L controlled by the control terminal 1C to a 70% dimming level. The control command also includes an indication that the control terminal 1D turns on the load L controlled by the control terminal 1D to a 30% dimming level. Then, the control unit 10 generates a packet (command signal) having data (which is set as the control command), a destination address (which is set to the multicast address), and a source address (which is set to Control terminal identification code of terminal identification code 1A). Subsequently, the control unit 10 transmits the packet (command signal) from the communication unit 12 to the signal line Ls. It should be noted that the control command does not include the control terminal identification code of the second control terminal 1B and the control information for controlling the second control terminal 1B.

In the second control terminals 1B to 1D, when the communication unit 12 receives the packet (command signal), the communication unit 12 transmits the packet (command signal) to the control unit 10. In the second control terminal 1B, the control unit 10 of the second control terminal 1B recognizes that the packet (command signal) does not have an identification code equal to the control terminal identification code of the second control terminal 1B. Therefore, the second control terminal 1B does not control the loads L controlled by the control terminal 1B, whereby the loads L under the control of the control terminals 1B maintain the current state. In addition, the second control terminal 1B generates a packet (status signal) having data indicating the current state of the loads L under the control of the control terminal 1B, and transmitting the packet (status signal) to the signal line. Ls. In contrast, in each of the control units 10 of the second control terminals 1C and 1D, the control unit 10 recognizes that the packet (command signal) has an identification code equal to the control terminal identification code of the second control terminals 1C and 1D. Because the control signal includes a control signal for lighting the load L to a certain dimming level, each of the control terminals 1C and 1D controls one for opening to a specific dimming position. The control signal is transmitted to each of the load operation units 14 of the second control terminals 1C and 1D, and the dimming level corresponds to the dimming level of the control signal. When the load operation unit 14 receives the control signal, the load operation unit 14 drives the drive circuit according to the control signal to adjust the amount of electric power supplied to the load L per unit time. Furthermore, the control unit 10 of each of the second control terminals 1C and 1D generates a packet (status signal) after a predetermined time has elapsed. The packet (status signal) has a destination address (which is set to the identification code of the first control terminal 1A of the source address in the packet (command signal)), and a source address (which is set for each of the control terminals 1C and 1D control terminal identification code), and data (which is set to the state of the load L after the control terminal controls the load L). Then, the control unit 10 of each of the control terminals 1C and 1D transmits the packet (status signal) from the communication unit 12 to the signal line Ls. Furthermore, the control unit 10 controls the control terminal's own display 15 to change the indication of the display 15.

In the first control terminal 1A, when the communication unit 12 receives the packet (status signal), the communication unit 12 transmits the packet (status signal) to the communication unit 12. Upon receiving the packet (status signal), the control unit 10 stores the state of the load L in the packet to the memory 13. In addition, when the control unit 10 receives a packet (status signal) for notifying the load status from all the control terminals 1C and 1D belonging to the second mode group corresponding to the operation switch S53, the control unit 10 operates the The display 15 opens the light-emitting element LD53. Therefore, the display 15 instructs execution of the second mode control. It should be noted that the operation of the first mode control is substantially the same as the second mode control. Therefore, the description of the operation of the first mode control is omitted here.

In this embodiment, as in the first embodiment, when the mode selection switch (not shown) of the first control terminal 1A is set to perform control (batch control) from the far end, the control unit of the control terminal 1A 10 Switch from the operation mode to the login mode. In addition, the control unit 10 transmits the packet (login signal) having the control command for switching from the operation mode to the login mode by means of broadcast transmission from the communication unit 12 to the signal line Ls. Then, when the control unit 10 of each of the second control terminals 1B to 1D receives the packet (login signal), each of the control units 10 switches from the operation mode to the login mode. It should be noted that, in the login mode, the steps of registering the identification codes of the second control terminals 1B to 1D to the group controlled by the first control terminal 1A are the same as those in the first embodiment. . Therefore, the description of the steps of registering the identification codes of the second control terminals 1B to 1D to the group controlled by the first control terminal 1A is omitted here. Here, there is a possibility that the load control system has a plurality of first control terminals 1A set to perform the control (batch control) from the far end. In this case, when a control unit 10 of the first control terminal 1 switches from the operation mode to the login mode according to the operation of the mode selection switch, the other control unit 10 switches from the operation mode to the login mode, and determines the Control unit 10 is one of the centers of the login mode. Therefore, regardless of whether the control terminals are grouped by the operation of the operation switch, the first control terminals 1 will be selected instead of the center of the login mode.

In this case, first, the dimming level of the load L is adjusted by operating the operating switches S32, S33, S42, S43 of the control terminals 1C, 1D in the operating mode. Subsequently, when the operation switch S53 of the control terminal 1A is pressed for a predetermined period, the input receiving unit 11 receives the control command, and then transmits an operation signal for logging in the load state to the control unit 10. Upon receiving the operation signal, the control unit 10 of the first control terminal 1A obtains "the current state of the load L" and "the control terminal identification code of the control terminals 1C and 1D belonging to the second mode group", Both correspond to the operation switch S53. Then, the control unit 10 determines that the current state of the load L is the control information of each of the loads L in the second mode control, and stores the control information in the memory 23. However, as explained in the first embodiment, it is possible to obtain the current state of the load by transmitting a packet (command signal) having an instruction to notify the load state.

1. . . Control terminal

2. . . Operation terminal

10. . . control unit

11. . . Input receiving unit

12. . . Communication unit

13. . . Memory

14. . . Load unit

15. . . monitor

16. . . power supply

20. . . control unit

twenty one. . . Operation input unit

twenty two. . . Communication unit

twenty three. . . Memory

twenty four. . . monitor

25. . . power supply

100. . . Transmission control unit

102. . . Operation terminal

103. . . Control terminal

104. . . Lighting load

1A. . . Control terminal

1B. . . Control terminal

1C. . . Control terminal

1D. . . Control terminal

2B. . . Operation terminal

2A. . . Operation terminal

L. . . load

LD11. . . Light emitting element

LD21. . . Light emitting element

LD22. . . Light emitting element

LD31. . . Light emitting element

LD41. . . Light emitting element

LD51. . . Light emitting element

LD52. . . Light emitting element

LD53. . . Light emitting element

LD61. . . Light emitting element

LD62. . . Light emitting element

Lp. . . power cable

Ls. . . Signal line

S1. . . Operation switch

S11. . . Operation switch

S2. . . Operation switch

S21. . . Operation switch

S22. . . Operation switch

S3. . . Operation switch

S31. . . Operation switch

S32. . . Operation switch

S33. . . Operation switch

S41. . . Operation switch

S42. . . Operation switch

S43. . . Operation switch

S51. . . Operation switch

S52. . . Operation switch

S53. . . Operation switch

S61. . . Operation switch

S62. . . Operation switch

Vs. . . Transmission signal

Fig. 1 shows a conceptual diagram of the load control system in the first embodiment.

Fig. 2 is a block diagram showing the control terminal in the first embodiment.

Fig. 3 is a block diagram showing the operation terminal in the first embodiment.

Figures 4(a) and (b) show the packet in the first embodiment.

Fig. 5 shows a sequence of operations for explaining the first embodiment.

Fig. 6 shows a sequence of operations for explaining the first embodiment.

Fig. 7 shows a sequence of operations for explaining the login mode in the first embodiment.

Fig. 8 shows a sequence of operations for explaining the login mode in the first embodiment.

Fig. 9 is a conceptual diagram showing the load control system in the second embodiment.

Fig. 10 shows a sequence of operations for explaining the second embodiment.

Fig. 11 shows a sequence of operations for explaining the second embodiment.

Figure 12 shows a conceptual diagram in a conventional load control system.

Figure 13 shows an illustration of the transmission signals in a conventional load control system.

1. . . Control terminal

2. . . Operation terminal

1A. . . Control terminal

1B. . . Control terminal

1C. . . Control terminal

1D. . . Control terminal

2B. . . Operation terminal

2A. . . Operation terminal

L. . . load

LD11. . . Light emitting element

LD21. . . Light emitting element

LD22. . . Light emitting element

LD31. . . Light emitting element

LD41. . . Light emitting element

LD51. . . Light emitting element

LD52. . . Light emitting element

LD53. . . Light emitting element

LD61. . . Light emitting element

LD62. . . Light emitting element

Lp. . . power cable

Ls. . . Signal line

S11. . . Operation switch

S21. . . Operation switch

S22. . . Operation switch

S31. . . Operation switch

S32. . . Operation switch

S33. . . Operation switch

S41. . . Operation switch

S42. . . Operation switch

S43. . . Operation switch

S51. . . Operation switch

S52. . . Operation switch

S53. . . Operation switch

S61. . . Operation switch

S62. . . Operation switch

Claims (5)

A load control system for controlling at least one load, the load control system comprising: at least one control terminal and at least one operation terminal; the control terminal is connected to the at least one load, and the operation terminal is connected to the control terminal through a signal line At least one of the control terminals has a control terminal identification code, and each of the operation terminals has an operation terminal identification code, and the control terminal includes a first input receiving device, a first control device, and a first communication device. The first input receiving device has at least one first operation switch for inputting a first control command, and the first control device is configured to control a predetermined load when the first input receiving device receives the first control command, Retrieving the first control command, the predetermined load corresponding to the first control command, and being controlled by the first control device, the operation terminal having the second input receiving device, the memory, the second control device, and the second a communication device, the second input receiving device having at least one second operation switch for inputting a second control command The memory stores a relationship between the second control command and at least one control terminal identification code associated with the control information, the control information indicating a predetermined state, and causing at least one load controlled by the control terminal to enter the predetermined state, The second communication device is in communication with the first communication device, the second control device is configured to recognize the second control command received by the second input receiving device, and obtain the second control command from the memory Corresponding to the control terminal identification code and the control information, the second control device is configured to generate a control command for controlling the load to the predetermined state based on obtaining the control information, and transmitting the signal through the signal line The second communication device transmits a command signal to the control terminal, the command signal includes the control command, and obtains a control terminal identification code, and the control terminal is configured to receive the second communication from the signal line via the first communication device The command signal transmitted by the device and the control terminal identification code of the command signal are equal to the control terminal's own control terminal. When the identification code is used, the predetermined load is controlled to be in the predetermined state according to the control command, wherein the first control device is configured to send a status signal to the operation terminal at a predetermined time, the status signal indicating a reservation controlled by the control terminal a current state of the load, and the second control device is configured to recognize a current state of the predetermined load to determine that the current state is a predetermined state of the load, and is configured to receive the second when the second input receiving device receives When the storage instruction of the receiving device is input, the relationship between the current state and the control terminal identification code is stored in the memory. The load control system of claim 1, wherein the first control device is configured to transmit a status signal indicating a current state of the predetermined load when the first control device controls the load, the second The control device is configured to store a state of the load when the second control device receives the status signal, which is included in the status signal, the second control device being configured to receive the second input receiving device And storing, by the memory, a state of a load controlled by the control terminal, the second control device being configured to generate a relationship between the load and a load state obtained from the memory, and storing the relationship to The memory. The load control system of claim 1, wherein the second control device is configured to cause the second communication device to send a request signal to the first when the second input receiving device receives the storage instruction a communication device, the first control device is configured to, when the first communication device receives the request signal, cause the first communication device to send the status signal to the second communication device, the status signal indicating the current status of the load a state, and the second control device is configured to recognize the current state of the load from the status signal, and is configured to generate a relationship between the load and the load state, and the second control device is configured to The relationship is stored to the memory. The load control system of claim 1, wherein the second control device is configured to detect a first operation input when the second operation switch is operated in the first period, and the second control device is set When the second operation switch is operated for a second period longer than the first period, the second operation input is detected, and the control device is configured to obtain the control terminal identification corresponding to the first operation input from the memory a code, and configured to generate a control command for controlling the load, the control device being configured to generate a command signal having the control command and a control terminal identification code obtained from the memory, and configured to transmit the signal The line sends the command signal to the control terminal, and the second control device is configured to recognize the state of the load controlled by the control terminal when the control terminal receives the second operation input, and is configured to generate The relationship between the loads and the states of the loads, and the second control device is configured to store the relationship to the memory. The load control system of claim 1, wherein the operation terminal is connected to at least one load controlled by the operation terminal, and the second control device is configured to receive the second control when the second input reception device At the time of instruction, the loads controlled by the operation terminal are controlled.