JPS6367425B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an indoor load control device that centrally controls controlled loads such as lighting loads, refrigerators, and air conditioners placed in a building using a parent unit. When controlling the built-in controlled load from the main unit side, when the controlled load is turned off, it is always restarted after a certain period of time has elapsed, ensuring protection of the controlled load built in the compressor. The purpose of this invention is to provide a control device.

An embodiment of the present invention will be described in detail below with reference to the drawings.
FIG. 1 is a schematic diagram showing an example of the basic configuration of an embodiment of the present invention. 14 power to lighting load 1
...Each terminal device 5 ₁ , 5 ₂ ...or these terminal devices 5
These terminal devices 5 ₁ , ₂ are drawn into the control panels 22 , 22 which have built-in terminal devices having the same configuration as those of 5 1 , 5 ₂ , and so on.
5 ₁ ... or a terminal device built into the control panels 22, 22. On the other hand, each terminal device 5 ₁ , 5 ₂ ... (including the terminal devices in the control panels 22, 22) is controlled by the second terminal device. As shown in Figure a, the power sent from the base unit 4 via the dedicated 2 wires 6 using the baseband transmission method is full-wave rectified and used as its own operating power source, and this signal itself is read and used for the lighting that is the controlled load. It controls the load 1, air conditioner 2, refrigerator 3, etc. That is, in this configuration example, in addition to the lighting load 1, an air conditioner 2 with a built-in compressor, a refrigerator 3, etc. are controlled as the controlled loads, and the multiplex transmission method uses dedicated two wires 6. Terminal 5 ₁ using baseband transmission method,
5 ₂ ...Although the system adopts a device that simultaneously transmits power for operation and data, the present invention is not limited to such an embodiment, and power and data may be transmitted separately. Further, a power line carrier method or a wireless transmission method may be used, and a multiplexing method using frequency division may also be used in combination.

Thus, the configuration example shown in FIG. 1 is configured to include a microprocessor 7 as described later, and for example, as shown in FIG. 2a, one terminal device 5 ₁ ,
5 ₂ ..., a 1-bit pulse with logical value "1" as a start pulse, and 8-bit address data AD, 1 for selecting a predetermined terminal device 5 ₁ , 5 ₂ ...
Bit address parity AP, 1-bit pulse with logical value "1", the called terminal 5 ₁ ,
5 ₂ 5-bit control data CD for setting control contents, 1-bit control data parity
A signal is sent out in which long pulses corresponding to 5 to 6 bits, which is the waiting period for the CP and return signals, are sequentially arranged in series, and this signal is sent out cyclically and repeatedly one after another for each address. In addition, in the case of this configuration example, each terminal device 5 ₁ , 5 ₂ .
It is determined from the data contents of the AD whether or not it is the self-call, and when it is determined that the self-call is the self-call, the lighting load 1, which is the controlled load, is turned on and off according to the contents of the control data CD, and the air conditioning equipment is 2, the refrigerator 3, and the like. Lighting load 1...
In the case of control, each terminal device 5 ₁ , 5 ₂ . . . controls four lighting loads 1 as control units. Here, one control unit is the smallest unit that can be individually controlled in the terminal device 5 ₁ . , which performs off control, and also has control data CD
Since the 5th bit is left idle to be used for another purpose unrelated to the present invention, it has 4 control units, and how many controlled loads are actually connected in parallel to this 1 control unit? However, in the following explanation, one controlled load will be represented for each control unit. In addition, each lighting load 1 (lighting load 1 as a control unit) is assigned a serial number starting from 1, and pattern control or individual manual control is performed from the main unit 4 side based on the number of lighting load 1. For example, control content for lighting each of the third to ninth lighting loads 1 as a first pattern is programmed in the base unit 4, and it is determined that the time has come to light the first pattern. If this is the case, when setting addresses to call the first, second, and third terminals 5 ₁ , 5 ₂ , and 5 ₃ , the control data CD that follows the address data AD is used to set the respective lights to be lit. The data to turn on the load 1... is created and sent as a baseband signal as shown in Figure 2a. Each terminal device 5 ₁ , 5 ₂ , 5 ₃ receives this data and transmits it to its own terminal device. When it is determined that 5 ₁ ... has been called, lighting of each lighting load 1 ... is controlled according to the contents of the control data CD. Since this individual call control from the base unit 4 to each terminal unit 5 ₁ , 5 ₂ , 5 ₃ is performed at high speed, visually, the third to ninth lighting loads 1... almost all light up at the same time. will be done. Next, reference numeral 15 is a wall switch, which actually has the same circuit configuration as the terminals 5 ₁ , 5 ₂ , etc., and is configured to receive address data AD and detect a call to itself. However, it does not have an external load control function, and the operating status of the operation switches 15a and 15b is changed by short-circuiting the dedicated two wires 6 during the long pulse sending period from the base unit 4 side, as shown in Fig. 2b.
It is configured to transmit data as a return signal in the form of a current mode, and the return signal sent back in the current mode is received by the base unit 4, and each operation switch 15a, 15b is operated. In order to turn on the lighting load 1... (this dependency relationship is programmed in the base unit 4 in advance) whose number is subordinate to the operation switch 15a, 15b, the base unit 4 transmits the light in the same manner as described above. The control data CD will be created and sent to the terminal device 5 ₁ to which the lighting load 1 belongs. Although the wall switch 15 is configured to have the same address as appropriate terminal devices 5 ₁ , 5 _{2 .} . . that do not have a monitoring function, it is configured to have a completely different address from these terminal devices 5 ₁ . It's okay. Reference numeral 2 denotes a control panel incorporating one to an appropriate number of terminal devices having the same configuration as the terminal devices 5 ₁ , 5 ₂ for controlling the aforementioned lighting load 1 .
The output of 2 controls the start-up of air conditioning equipment 22... and refrigerator 3..., and these air conditioning equipment 2... and refrigerator 3... consume a large amount of power, and the contacts in terminal device 5 ₁ ... Because capacity is not enough,
This terminal device is also incorporated into a control panel 22 that includes a built-in electromagnetic contactor, etc., and the air conditioner 2 and refrigerator 3 are controlled thereby.

FIG. 3 shows the circuit configuration inside the main unit 4, which includes a microprocessor 7, a storage section 8, a timekeeping section 9,
It includes a display section 10, a key switch 11, a control switch section 16, etc., and a microprocessor 7.
and the data signal created by its attached circuit to the second
It is sent as baseband data to the dedicated two wires 6 via the coupling circuit 17 as shown in Figure a, and
A current mode return signal as shown in FIG. 2b above is received and this received data is input to the microprocessor 7. The memory section 8 may be constructed using the RAM itself if there is sufficient RAM in the microprocessor 7, but the first to Nth pattern memory sections for controlling the lighting load 1 may be used. 18 ₁ ...18 _N , all release storage section 18 ₀ ,
In addition to having a wall switch correspondence storage section 19, it has a duty cycle storage section 20 and a restart regulation time storage section 21 for controlling the controlled load built in the compressor, and has first to Nth pattern storage sections _181.
... _18N stores the number of the lighting load 1... to be turned on in each of the first to Nth patterns, and the data of the time at which the pattern control should be started, and the all-cancellation storage section _{180 stores the number of the lighting load 1... to be turned on in each of the first to Nth patterns, and the all-cancellation storage section 180} ... (a kind of pattern control data) and the data of the time when all the lights should be turned off are stored in the wall switch correspondence storage section 19.
When the operating switches 15a, 15b of No. 5 are operated, the correspondence relationship as to whether the lighting loads 1... should be turned on and off is stored. The restart regulation time storage unit 21 stores data regarding the minimum length of the off period required to restart the air conditioner 2 or refrigerator 3, which is a controlled load built into a compressor that has been once stopped. . Further, the duty cycle storage unit 20 stores data for performing duty cycle control for power saving when the air conditioner 2 and the refrigerator 3 are operated. Timing section 9
inputs data regarding the day of the week, hour, and minute to the microprocessor 7, and the microprocessor 7 normally uses the timer section 9 when controlling the lighting load 1.
It inputs the time data from the 1st to Nth pattern storage units ₁₈₁ to _18N and determines which control is to be performed among the pattern controls stored in the all-cancellation storage unit ₁₈₀ . It performs pattern control, and at the same time receives a return signal from the wall switch 15 and accesses the wall switch correspondence storage section 19 based on the content of the return signal to determine which lighting load 1... should be turned on. The terminal equipment 5 ₁ , 5 ₂ . . . to which the determined lighting load 1 belongs is determined.
When called, a control data CD for lighting the lighting load 1 is created and sent.
Furthermore, when controlling the air conditioner 2, refrigerator 3, etc., the data of the time when these controlled loads are turned off is stored in the RAM in the microprocessor 7, and the data is stored as shown in the flowchart in FIG. First, the OFF time data stored in this RAM is read out, and the current time data from the timer 9 is read in, and the current OFF time length is calculated from these data. Next, data regarding the set off time length is read from the duty cycle storage unit 20, it is determined whether or not a time equal to or greater than the set off time length for duty cycle control has elapsed, and YES is selected. Then move on to the next step.
In this next step, it is first determined whether data to turn on is input from a manual on switch (not shown) or a temperature sensor (not shown).
When this is YES, the protective off time length data for protecting the controlled load is read from the restart regulation time storage unit 21, and whether or not the current off time length calculated as above is longer than this protective off time length. is calculated, and when YES, the control data for starting the controlled load is created and sent. On the other hand, the display section 10 normally displays the output time data from the timekeeping section 9 as is, and functions as a clock. Control switch section 1
When the time adjustment mode is set at step 6, the change setting switch (not shown) in the control switch section 16 allows the "day of the week,""hour,""10th of the minute, ^1st place," and "10th of the minute, ^0th place" to be set. After setting which change is to be made, the time is set by operating an up count button or a down count button (none of which is shown), and the time setting status at this time is displayed on the display unit 10. be done. Next, the control switch section 16
When the pattern setting mode is set, first, one of the pattern control storage sections ₁₈₀ to _18N is selected by operating the key switch 11, and the start time of the pattern control stored there is displayed on the display section 10. If this time is desired to be changed, the start time of the pattern control is reset in the same manner as when setting the time. On the other hand, if you want to change the lighting load 1 controlled in the pattern control, the control switch section 16
After changing the number of lighting load 1... to the setting state, input the number of lighting load 1... to be turned on (in addition to pattern control) or turned off (removed from pattern control) using the key switch 11,
This completes the pattern setting. In addition, changing the storage contents in the wall switch correspondence storage section 19,
Similarly to the above, after setting the control switch section 16 to the wall switch correspondence change setting mode, the correspondence relationship is changed and set by operating the key switch 11. In addition, the restart regulation time storage unit 21
And the off time length stored in the duty cycle storage section 20 is also changed to the key switch 11 in the same manner as described above.
It can be set freely by operating the . In the above embodiment, when the control switch section 16 is set to the manual state, when controlling the lighting load 1, the first to Nth patterns or all cancellation can be selected by operating the corresponding pattern selection switch (not shown). This allows the lighting to be performed selectively or redundantly regardless of the set start time, and in the manual state, it is possible to turn on or off the individual lighting loads 1 one by one by operating the key switch 11. can. Furthermore, as described above, controlled loads such as the air conditioner 2 and the refrigerator 3 can be controlled according to the temperature sensor output, and manual on-control operations can be performed.

As described above, the present invention compares the data regarding the restart regulation time from the restart regulation time storage section with the data regarding the off period length from the off period measuring means by the microprocessor in the base unit, Since only the controlled load whose off-period length has become longer than the restart regulation time is set to be restartable, the controlled load with a built-in compressor will be able to restart after the predetermined restart regulation time has elapsed since its stop time. This has the effect that the compressor is not restarted before it is restarted, and the controlled load built into the compressor can be protected.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the base structure of an embodiment of the present invention, FIGS. 2a and 2b are waveform diagrams of data signals transmitted and received as above, FIG. 3 is a block circuit diagram of the base unit as above, and FIG. The figure is a flowchart showing the operation of the microprocessor of the main unit, in which 1 is the lighting load, 2 is the air conditioner, 3 is the refrigerator, 4 is the main unit, and 5 is the main unit.
₁ , 5 ₂ . . . are terminal devices, 6 is a dedicated two-wire line, 7 is a microprocessor, and 21 is a restart regulation time storage unit.

Claims (1)

[Claims] 1. Various controlled loads such as lighting loads, air conditioners, and refrigerators installed in buildings, stores, factories, etc. are centrally controlled by a master unit, and the controlled loads that are collectively controlled are A large number of terminal devices are provided for each control unit or multiple control units and placed near the controlled load, and these terminal devices are connected to each other by a common transmission line such as a dedicated two-wire. In an indoor load control system, which has a master unit with a built-in microprocessor that calls each unit individually using a time-division multiplexing method and sends control data, among various controlled loads, built-in compressors such as air conditioners and refrigerators are used. When controlling the controlled loads of the compressor from the main unit side, there is a restart regulation time storage unit that sets and stores the restart regulation time when the controlled loads built in the compressor are turned off, and a restart regulation time storage unit that stores the restart regulation time for each controlled load built in the compressor. OFF period measuring means for measuring the length of the OFF period is provided, and a microprocessor in the base unit receives data regarding the restart regulation time from the restart regulation time storage section and data regarding the OFF period length from the OFF period measuring means. An indoor load control device characterized in that the indoor load control device compares data and sets only controlled loads whose off period length is longer than the restart regulation time to be restartable.