JP3223114B2 - Circuit diagram creation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit diagram creating apparatus for use in a wiring apparatus for indoor wiring, which facilitates rearrangement of wiring circuits when performing indoor wiring.

[0002]

2. Description of the Related Art In indoor wiring work, labor saving of on-site work,
Shortening of construction period and reliability of construction are required. In indoor wiring work, there is a case where a connection device (distribution box) in which a connection portion is integrated into a unit is used to reduce labor on site work and shorten a construction period. In this type of wiring box, a distribution unit is provided with a branching unit and a blinking unit.
No. 8 is described with reference to FIG. 14 and FIG. FIG. 14 is a block diagram showing wiring of a conventional connection device,
FIG. 15 is a wiring diagram showing an example of indoor wiring using a conventional connection device.

In FIG. 14, a wiring box with a branch circuit (hereinafter referred to as a distribution box) 21 is supplied with power from a service line 23 via a power meter 25. This distribution box 21
Is provided with a power distribution unit 33 composed of a drop-in switch 27 connected to a wattmeter 25 and a breaker 31 connected to a plurality of branch lines 29 branched therefrom. The power distribution unit 33 includes a branching unit 35, a blinking mechanism (switch) 37, and an external connection terminal 3.
9 is connected. Each breaker 31 has a branching means 35
Are connected to each other, and a plurality of branch circuits 4
1 are formed. The branch circuit 41 is wired to the external connection terminal 39 via a blinking mechanism 37 such as a tumbler switch.

[0004] In order to perform indoor wiring using the power distribution box 21 constructed as described above, as shown in FIG. May be exposed, and after the interior work is completed, the end of each cord may be processed to attach each electric appliance. Each wiring 45 is connected to the distribution box 2
1 and connected to the external connection terminal 39 to complete the wiring, and to turn on and off the blinking mechanism 3 in the distribution box 21.
By the operation of 7, the operation of each electric appliance 43 can be performed in one place. As the electric appliance 43, for example, a lighting device, an outlet, a blinker (switch)
And ventilation fans.

According to the distribution box 21, it is only necessary to wire in advance in the indoor wiring to a position where the electric appliance is to be mounted by a crossover wiring or the like, and to extend the extension line to the wiring position of the distribution box 21. In this step, it is not necessary to adopt a construction method of arranging and branching the joint box while calculating the allowable amount of the terminal load of each branch circuit, and even a person who does not have the skill can easily perform the wiring. Wiring that matches the allowable load of the electric circuit terminal load is connected to the external connection terminal 39 in the distribution box 21 regardless of the interior construction work.
It can be done freely by appropriately changing the connection to.

[0006]

However, such a conventional power distribution box 21 can cope with a change in the circuit by appropriately changing the connection to the external connection terminal 39. However, there is a problem that this operation is very troublesome and takes time.

It is an object of the present invention to provide a circuit diagram creating apparatus which can easily and quickly cope with a change in a circuit in an indoor wiring.

[0008]

To achieve the above object, according to the present invention, there is provided a circuit diagram creating apparatus according to a first aspect of the present invention, wherein a distribution unit is connected to one end of the distribution unit, and the other end is connected to the distribution unit. And a plurality of cables to which a load and / or a switch for supplying power to the load are connected, and a detection unit that is interposed in each of these cables in series and detects an open / closed state of a contact and outputs a detection result. Having a relay unit, a storage unit in which the connection pattern of the load corresponding to the switch is stored in advance, and opening and closing of the switch is detected by a detection unit of the relay unit connected to the switch. A circuit diagram creation device used for a connection device including a control unit that drives a corresponding relay unit based on a connection pattern of a storage unit, wherein a switch and a load connected to the cable are selected and divided. Input means for inputting a load corresponding information, - a switch for determining the load corresponding to the branch circuit determination information and the switch for determining the circuit
Creating means for creating a circuit diagram based on the branch circuit determination information and the switch-load correspondence information; display means for displaying the circuit diagram created by the creating means; and a circuit diagram created by the creating means. A connection pattern generation unit for generating a connection pattern based on the connection pattern; and a writing unit for writing the connection pattern generated by the connection pattern generation unit into the storage unit.

According to this configuration, branch circuit determination information is obtained by selecting a cable and a switch and a load connected to the cable, and a branch circuit is created based on the branch circuit determination information. Then, in the created branch circuit, switch-load correspondence information is obtained by determining a load corresponding to the switch, and a connection diagram is created based on the switch-load correspondence information. Then, a connection pattern is generated based on the created connection diagram. Then, the generated connection pattern is written to a storage unit (for example, a ROM) of the connection device. Therefore, a wiring diagram for performing indoor wiring can be created as if designing by CAD, and a wiring pattern based on the generated wiring diagram can be written in the storage unit of the wiring device. Therefore, even if a circuit change occurs, a circuit diagram may be created again and the connection pattern may be written into the storage unit of the connection device, so that the circuit change can be easily and quickly dealt with.

According to a second aspect of the present invention, the circuit diagram creating apparatus further has a function of inputting timer information for setting a timer between loads corresponding to the switches, and further includes the timer information and the branch circuit determination. A circuit diagram is created based on the information and the switch-load correspondence information. According to this configuration, timer information is obtained by setting a timer between the switch and the corresponding load, and a time difference is provided between the switch and the corresponding load by the timer information. A circuit diagram (connection diagram) is obtained. At this time, even when there are a plurality of loads corresponding to the switch, a timer can be set for each load.

Therefore, for example, when the load is a ventilation fan, it can be operated for a while after the switch is turned off. In addition, it is possible to control the driving time of a plurality of loads. For example, it is possible to sequentially supply power to a plurality of electric devices having a large load at the time of startup, thereby concentrating the maximum power consumption at the time of startup. It is also possible to prevent overcurrent due to

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an embodiment of a circuit diagram creation device 1 according to the present invention. In this figure, a circuit diagram creation device 1 is composed of a keyboard 2, a mouse 3, an interface 4, a control unit 5, a clock unit 6, a monitor 7, a display control unit 8, a ROM 9, a RAM 10, a hard disk 11, and a ROM writer 12. I have.
The interface 4 connects the keyboard 2 and the mouse 3 to the control unit 5, and the clock unit 6 outputs time data indicating the current time. The display control unit 8 controls the display of the monitor 7 according to the display data from the control unit 5.

A program for controlling the control unit 5 is stored in the ROM 9. The control unit 5 controls each unit of the apparatus in accordance with the control program, and also controls indoor wiring based on various information input by the keyboard 2 and the mouse 3. To create a circuit diagram (branch diagram and connection diagram). Note that the branch diagram is also called a system diagram. RAM1
0 is used in the operation of the control unit 5, and the hard disk 11 is used for storing circuit diagrams and the like created by the control unit 5. The ROM writer 12 is a ROM (EEPROM)
Etc.) 13 is used for writing data. This RO
In M13, a connection pattern based on the connection diagram in the circuit diagram is written. This ROM 13 is used for a connection device 51 described later.

Hereinafter, creation of a circuit diagram by the circuit diagram creation device 1 will be described. Creation of Branch Diagram On the initial screen of the monitor 7 immediately after the power is turned on to the circuit diagram creation device 1, a menu bar 15 is displayed at the top of the screen as shown in FIG. From this menu bar, various menus such as branch diagram creation, connection diagram creation, file writing / reading, symbol code display, and ROM writing can be selected. The circuit diagram of the indoor wiring is created in the order of the branch diagram and the connection diagram. The operator uses the mouse 3 to create a branch diagram using the menu bar 1
Click the branch diagram creation area from step 5. As a result, the symbol code menu 16 of the electrical diagram symbol shown in FIG. 3 is displayed at the right end of the screen of the monitor 7, and the operator selects a desired symbol from the symbol code menu 16 and branches as shown in FIG. Create a diagram. in this case,
Select the type of cable, and then select a switch or load to connect to the cable. By inputting the branch circuit determination information, a branch diagram is created.

In FIG. 4, for example, as a cable 1A,
Three cores with a size of 2.0 mm are selected, to which a switchboard is connected. A single-core cable having a size of 1.6 mm is selected as the cable 2A, and a double-cut switch is connected to the single-core cable. Further, a single-core cable having a size of 1.6 mm is selected as the cable 4A, to which an outlet is connected. The cable 6A has a single core and a size of 1.6.
mm was selected, to which a hooking rosette for lighting equipment was connected. Further, a single-core cable having a size of 1.6 mm is selected as the cable 9A, to which a water heater power supply is connected. A single-core cable having a size of 1.6 mm is selected as the cable 11A, and a lighting device is connected thereto.
As described above, a branch diagram is created by inputting branch circuit determination information of a cable and a load or a switch connected to the cable.

Creation of Connection Diagram After the creation of the branch diagram, the operator uses the mouse 3 to click a connection diagram creation area from the menu bar 15. As a result, the apparatus enters a state of waiting for input of switch-load correspondence information for determining a load corresponding to the switch.
The operator inputs switch-load correspondence information for determining a load corresponding to the switch with reference to the branch diagram. That is, the mouse and the switch are used to click on the switch and the corresponding load sibol code.

After inputting the switch-load correspondence information, a connection diagram is created by executing a connection diagram creation process. In this case, the double-sided switch connected to the cable 2A corresponds to each of the hanging rosettes connected to the cables 6A and 7A, and the switch connected to the cable 3A corresponds to the lighting equipment connected to the cable 11A. , A connection diagram as shown in FIG. 5 is created. In this way, a connection diagram is automatically created by inputting switch-load correspondence information for determining a load corresponding to a switch to a branch diagram created in advance. Then, the created connection diagram is converted into data for writing to the ROM 13 and written to the ROM 13.

Hereinafter, the operation of the circuit diagram creating apparatus 1 will be described. 6, 7, and 8 are flowcharts showing the operation of the circuit diagram creation device 1. In this case, FIGS. 6 and 7
FIG. 8 shows an operation when a new circuit diagram is created, and FIG. 8 shows an operation when a new circuit diagram is created by editing an already created circuit diagram. Hereinafter, the operation at the time of new creation and the operation at the time of editing creation will be described in this order. Operation for New Creation First, in step S10, the ROM writer 12 of the ROM 13
Display that prompts you to set to. For example, "ROM
"Please set in M writer" is displayed on the monitor 7. Then, in step S12, the minimum cable number and core are set. This is done by selecting a symbol from the menu, the smallest cable number is typically 1A.

After setting the cable number and wire core,
Proceeding to step S14, it is determined whether a load is connected to the cable. In this determination, if it is determined that the load is involved, the process proceeds to step S16, and it is determined whether the load is provided with a switch. If it is determined that the load is provided with a switch, the switch is activated and the switch number is set in step S18. On the other hand, if it is determined that there is no switch, the relay number is set in step S20. After performing the processing of step S18 or step S20, the process proceeds to step S22, and it is determined whether the next setting is present. That is, it is determined whether or not there is a setting for the next cable and a load or a switch connected thereto. In this determination, if it is determined that the next setting is present, the process proceeds to step S24, and the cable number is increased by "1". For example, as described above, if the smallest cable is 1A, increasing the number by “1” results in 2A. After performing this process, the process returns to step S14.

On the other hand, steps S12 to S14
When it is determined in step S14 that the connection to the smallest cable is not the load, the process proceeds to step S26, and it is determined whether or not the one-piece switch is connected to the smallest cable. In this determination, if it is determined that the one-way switch is to be connected, the process proceeds to step S28, where "AND" / "OR" of the one-way switch and the setting of the load number are performed. In this case, the "OR" setting of the one-way switch is a normal setting, that is, a setting in which the load is turned on by turning on one point, and the "AND" setting is a setting in which the load does not turn on unless two or more points are turned on. It is. The load setting is the setting of the load corresponding to the one-side switch. After the setting of “AND” / “OR” of the one-side switch and the setting of the load number, the process proceeds to step S22, and it is determined whether or not there is the next setting.

If it is determined in step S26 that the connection to the smallest cable is not a one-way switch, the flow advances to step S30 to determine whether an interlock switch is already present. In this determination, when it is determined that the interlock switch already exists, the process proceeds to step S32, and the number of the interlocking partner switch is set. For example, in the branch diagram of FIG. 4, if the switch connected to the cable 2A and the switch connected to the cable 3A are set to interlock, the interlock between the two switches is shown as shown in the connection diagram of FIG. Line 17 is drawn. After setting the number of the interlocking partner switch, the process proceeds to step S22, and it is determined whether the next setting is present.

If it is determined in step S30 that the interlock switch does not exist, step S30 is executed.
Proceeding to S34, the setting of "XOR" of the switch and the setting of the load number are performed. In this case, the setting of "XOR" of the switch is the setting of the three-way switch. On the other hand, the load setting is a load setting corresponding to the three-way switch. After setting "XOR" of switch and setting of load number,
Proceeding to step S22, it is determined whether the next setting exists. In this way, the cable number and the number of wires are set, and then the load (including with switch) or the switch to be connected to the cable is set. These settings are performed for each of a plurality of cables. Then, the connection pattern is completed when the setting is performed for all the cables.

When the connection pattern is completed, step S2
From 2, the process proceeds to step S <b> 36 to determine whether or not to register data. If it is determined in this determination that data registration is to be performed, the process proceeds to step S38, and the connection pattern is written to the data area of the hard disk 11. In this case, a connection pattern is registered with a subject (for example, “Property A”) as a file name. In addition, the current time from the timer 6 is also registered.

After the registration of the connection pattern, it is determined in step S40 whether or not the connection pattern is to be written to the ROM 13. In this determination, when it is determined that writing to the ROM 13 is performed, the process proceeds to step S42,
The data is converted into data to be written in the ROM 13. Next, the process proceeds to step S44, where data is written to the ROM 13. After writing the data in the ROM 13, the process is terminated. On the other hand, if it is determined in step S36 that data registration is not to be performed, the process directly proceeds to step S40. If it is determined in step S40 that the connection pattern is not to be written in the ROM 13, the process ends.

Operation at the time of editing and creation In FIG. 8, first, a subject is input in step S60. In this case, using the keyboard 2, for example, "T
After entering the subject, step S6
In step 2, it is determined whether or not there is a previously created one. In this determination, when it is determined that there is no previously created one, the process proceeds to step S64, and the data name, the adaptation plan, and the connection symbol are input using the keyboard 2 respectively.
In this case, as shown in FIG. 5, for example, "A type" is input as the conformance plan and "AA" is input as the connection symbol. On the other hand, if it is determined in step S62 that there is no previously created one, the process proceeds to step S66,
Select one created in the past. In this case, all the subjects created in the past are displayed on the monitor 7, and a desired one is selected from them by using the mouse 3.

After performing the processing of step S64 or step S66, it is determined in step S68 whether or not there is editing, that is, whether or not to perform editing. In this determination, if it is determined that editing is to be performed, the process proceeds to step S70, where a symbol code, a cable type, a switch symbol, and identification are input. In this case, the symbol code indicates a switch (single-cut, three-way, etc.) and a load as shown in FIG. 3 described above, and the cable type specifies a wire core and a size. The switch symbol designates a combination of a linked switch and a load. The identification specifies a cable number or a setting. After inputting these symbol code, cable type, switch symbol, and identification, respectively, the timer is set in step S72. This timer setting is set for a load that needs to be operated for a predetermined time even if the switch is turned off, such as a ventilation fan of a toilet.

After setting the timer, it is determined in step S74 whether or not there is another cable. If it is determined that there is another cable, the flow returns to step S70, and step S70 is performed.
And the process of step S72 is repeated. On the contrary,
If it is determined that there is no other cable, the process proceeds to step S76,
Determine the size of the unit. In this case, the determined size of the unit is displayed as “connection type: FI” shown in the connection diagram of FIG. 5 described above. After determining the size of the unit, the process proceeds to step S78, and it is determined whether to register the edited data. In this determination, if it is determined that the edited data is to be registered, the process proceeds to step S80, where the edited data and the current time are stored in the hard disk 1.
1 is written in the data area. After registering the edited data, the process proceeds to step S82.

On the other hand, if it is determined that data registration is not to be performed, the process proceeds directly to step S82. If it is determined in step S68 that editing is not to be performed, the processing in steps S70 to S76 is not performed, and the process directly proceeds to step S78 to determine whether to register data. In step S82, it is determined whether the created connection pattern is to be written in the ROM 13. If it is determined in this determination that writing to the ROM 13 is to be performed, the process proceeds to step S84, and a display prompting the user to set the ROM 13 to the ROM writer 12 is displayed. For example, the display "Please set ROM to ROM writer" is displayed on the monitor 7 as described above. Then, step S8
The process proceeds to step S6, where the created connection pattern is converted into data to be written into the ROM 13.

After performing the data conversion, the flow advances to step S88 to write the converted data to the ROM 13. ROM
After writing the data into the block 13, it is determined in step S90 whether or not there is the next write. If it is determined that there is the next write, the process returns to step S60. If it is determined that there is no next write, the process ends. .

Here, a description will be given of the connection device 51 using the ROM 13 in which the connection pattern created by the above-described circuit diagram creation device 1 is written. FIG. 9 is a block diagram showing the configuration of the connection device 51, and FIG. 10 is an enlarged view of the relay section shown in FIG. In FIG. 9, a distribution unit 53 is provided in the connection device 51.
Is connected to a power supply line from the switchboard 55. Also,
A plurality of cables 57 are connected to the distribution unit 53, and each cable 57 has a blinking mechanism (switch) and / or
Alternatively, a load is connected. Each of the cables 57 has two cores, and a non-ground line 59a and a ground line
Connected to each other.

A relay 61 is connected to the wiring of the cable 57 connected to the ground wire 59b. The relay 61 is connected to a contact 63 as shown in FIG. 65. The contact 63 functions as a contact of a so-called relay that opens and closes the circuit according to the input signal. As the contact 63, a non-contact relay such as an electromagnetic relay or a semiconductor relay can be used. The detection unit 65 detects a voltage applied to both ends of the contact 63, and outputs a detection signal corresponding to the detected voltage.

Returning to FIG. 9, a control section 69 is connected to the distribution section 53 via a power supply section 67. The control unit 69 is connected to a signal line 71 from the detection unit 65 constituting the relay unit 61 and to a contact 63 constituting the relay unit 61 via a control line 73. Further, a data section 75 is connected to the control section 69. The control unit 69 is configured by a so-called microcomputer that operates according to a program stored in a built-in memory (ROM). The ROM 13 is set in the data section 75, and the predetermined contact 63 is controlled by the control section 69 to open and close based on a detection signal from each detection section 65 sent through the signal line 71 in the ROM 13. (Connection pattern) is stored. That is, based on the detection signal from the detection unit 65 and the data stored in the data unit 75, the control unit 69 controls the opening and closing of the contact 63, so that each cable 57 forms a predetermined connection pattern. I have.

For example, the switch 7 is connected to the first cable 57a.
7, when this switch 77 is closed,
The detection signal is sent from the detection unit 65 to the control unit 69. The control unit 69 supplies a contact drive signal to the contact 63 of the relay unit 61 based on the detection signal and a connection pattern set in the data unit 75 in advance. Thus, the control unit 69 closes the corresponding cable 57, for example, the contact 63 of the second cable 57b, and can supply power to the load 79 connected to the second cable 57b.

The control section 69 is provided with a timer function section 93 as shown in FIG. The operation of the timer function by the timer function unit 93 will be described with reference to the flowchart shown in FIG. For example, when the switch 77 connected to the first cable 57a is closed, the detection unit 65 constituting a relay unit connected to the switch 77 is closed.
, The contact 63 constituting the relay unit connected to the second cable 57b is closed, and the second cable 57b
Power is supplied to a load (ventilator) 95 connected to the power supply.
In this state, the timer function unit 9 provided in the control unit 69
3 is in a reset state, and starts counting for a predetermined time while the switch 77 is open. Then, when the timer function unit 93 counts a predetermined time, the control unit 69 sends a control signal for opening the contact 63 constituting the relay unit 61 connected to the second cable 57b to stop the ventilation fan 95.

It is to be noted that the timer function unit 93 can also control the driving time of a plurality of loads. That is, based on the signal from the detection unit 65 of the relay unit 61 connected to the first cable 57a, the power supply start timing to the load connected to the desired cable 57 is sequentially contacted by the signal from the timer function unit 93. The plurality of cables 57 and the time intervals at which 63 is closed are written in the ROM 13 of the data unit 75 in advance. In this way, by controlling the driving time of a plurality of loads, for example, it is possible to sequentially supply power to a plurality of electric devices having a large load at the time of startup, and to increase the maximum power consumption at the time of startup. Overcurrent due to the concentration of the liquid can be prevented.

FIG. 13 is a wiring diagram showing a method of connecting indoor wiring using the connection device 51. In order to connect the indoor wiring using the connection device 51, the cables 57 are respectively routed at the positions of the electric appliances 81 to be operated in series,
After the interior work is completed, the above-described continuity test is performed. If there is no problem in the result, various electric appliances 81 are connected to each cable. When a new connection device 51 is attached, an electric appliance 81 to be connected to the cable 57 is specified, and data for this is stored in the data unit 75. For example, the first cable 57a is connected to the switch 77, and the second cable 5
Cable 57a so as to connect 7b to the ceiling light 81a.
The connection between the cable and the cable 57b is specified.

On the other hand, the data section 75 includes the first cable 5
Data indicating a connection pattern such that a contact 63 forming a relay unit connected to the second cable 57b can be opened and closed by a signal from a detection unit 65 forming a relay unit connected to 7a. Thereby, the switch 7
By closing 7, ceiling lighting 81a connected to second cable 57b can be flickered. Further, in the connection device 51, even when the load is changed after the completion of the indoor wiring work, it is possible to easily cope with the change of the data unit 75 only without changing the cable 57. That is, in the above example, when it is desired to further control the blinking of the wall illumination 81b by the signal from the switch 77, the illumination of the wall is performed based on the signal from the detection unit constituting the relay unit connected to the first cable 57a. 81b
The data section 7 is controlled to open and close a contact 63 constituting a relay section connected to the third cable 57c connected to the third cable 57c.
The connection pattern data of No. 5 may be updated.

As described above, in the present embodiment, a desired indoor wiring diagram can be created while looking at the screen of the monitor 7 as in the case of designing by CAD, and the created wiring diagram is further subjected to data conversion. ROM used in the connection device 51
13 can be written. Therefore, even if a circuit change occurs after the construction of the indoor wiring, it can be dealt with simply by creating a connection diagram again and writing it in the ROM 13, and by editing the connection diagram created in the past, a new connection diagram can be created. Since it can be created, the circuit can be changed quickly and easily according to the layout change of an office or the like.

In this embodiment, a switch and
A connection diagram in which a timer is set between the switch and the load corresponding to the switch can be created. Therefore, for example, when the load is a ventilation fan, it can be operated for a while after the switch is turned off. In addition, it is possible to control the driving time of a plurality of loads. For example, it is possible to sequentially supply power to a plurality of electric devices having a large load at the time of startup, thereby concentrating the maximum power consumption at the time of startup. It is also possible to prevent overcurrent due to

The present invention is not limited to the above embodiment,
Various embodiments are possible within the scope of the object of the present invention, and specifically, the following may be performed. (A) The connection pattern is written to the ROM 13 and supplied to the connection device 51.
(Floppy disk) to be supplied to the connection device 51. In this case, the connection device 51 needs to be provided with an FDD (floppy disk device). (B) A serial transmission function may be provided in each of the circuit diagram creation device 1 and the connection device 51 so that data transmission of a connection pattern can be directly performed. Alternatively, a connection pattern may be transmitted to the connection device 51 via a telephone line by providing a modem. By doing so, the ROM 13 and the ROM writer 12 become unnecessary, and the cost can be reduced over the long term.

(C) The detecting section 65 of the relay section 61
3 is to detect the voltage applied to both ends,
The current flowing through the contact 63 may be detected. (D) The control unit 69 is configured by a microcomputer, but may be configured by a programmable sequencer. (E) The connection device 51 is a device in which the cable 57 to which the relay unit 61 is connected is integrated into the same device, or the data unit 75, the control unit 69, and the distribution unit 53 are integrated into the connection device. The cable 57 to which the relay unit 61 is connected may be any of those separately provided. When the cable 57 is integrated into the same device, the connection device 51 can be mounted at one time, and the installation work of the device can be performed quickly. Further, when the cable 57 is provided separately, the size of the device can be reduced, and the installation work of the device can be simplified.

[0042]

As described above, according to the circuit diagram creating apparatus according to the first aspect of the present invention, a desired indoor wiring diagram is created while observing the display by the display means, as in the case of designing by CAD. Since the created wiring diagram can be converted into data and written to the storage unit used by the wiring device, even if a circuit change occurs after the construction of the indoor wiring, the wiring diagram is created again and the wiring diagram is created. This can be dealt with simply by writing to the storage unit of the device, and since a new connection diagram can be created by editing the connection diagram created in the past, the circuit can be quickly and easily changed according to a layout change in an office or the like. You can make changes.

According to the circuit diagram creating apparatus of the second aspect of the present invention, a connection diagram in which a timer is set between a switch and a load corresponding to the switch can be created, so that, for example, when the load is a ventilation fan, It can be operated for a while after the switch is turned off. In addition, it is possible to control the driving time of a plurality of loads. For example, it is possible to sequentially supply power to a plurality of electric devices having a large load at the time of startup, thereby concentrating the maximum power consumption at the time of startup. Overcurrent can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a circuit diagram creation device according to the present invention.

FIG. 2 is a front view showing a monitor of the circuit diagram creating device according to the embodiment.

FIG. 3 is a diagram showing a symbol code menu used in the circuit diagram creation device of the embodiment.

FIG. 4 is a diagram illustrating an example of a branch diagram created by the circuit diagram creating apparatus according to the embodiment;

FIG. 5 is a diagram illustrating an example of a connection diagram created by the circuit diagram creating device according to the embodiment;

FIG. 6 is a flowchart showing an operation of the circuit diagram creating device of the embodiment.

FIG. 7 is a flowchart illustrating an operation of the circuit diagram creation device according to the embodiment;

FIG. 8 is a flowchart showing the operation of the circuit diagram creation device of the embodiment.

FIG. 9 is a block diagram showing a configuration of a connection device using a ROM in which connection patterns created by the circuit diagram creation device of the embodiment are written.

FIG. 10 is a block diagram showing a configuration of a relay unit of the connection device shown in FIG. 9;

FIG. 11 is a block diagram showing a schematic configuration of the connection device shown in FIG. 9;

FIG. 12 is a flowchart illustrating an example of the operation of the connection device illustrated in FIG. 9;

FIG. 13 is a wiring diagram showing an example of indoor wiring using the wiring device shown in FIG. 9;

FIG. 14 is a block diagram illustrating a configuration of a conventional connection device.

FIG. 15 is a wiring diagram showing an example of indoor wiring using a conventional connection device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Circuit diagram creation apparatus 2 Keyboard 3 Mouse 4 Interface 5 Control part 7 Monitor 8 Display control part 12 ROM writer 13 ROM 51 Connection device 53 Distribution part 57 Cable 61 Relay part 69 Control part 75 Data part 77 Switch 79 Load 79 Timer function part

Claims (2)

(57) [Claims] 1. A distribution unit, a plurality of cables each having one end connected to the distribution unit and the other end connected to a load and / or a switch for supplying power to the load, and each of these cables A relay unit that is interposed in series and has a detection unit that detects an open / closed state of a contact and outputs a detection result, a storage unit in which a connection pattern of the load corresponding to the switch is stored in advance, and opening / closing of the switch Circuit diagram used for a connection device having a control unit that drives a corresponding relay unit based on the detection result and the connection pattern of the storage unit based on the detection result and the connection pattern of the storage unit. A branch circuit determination information for selecting a switch and a load connected to the cable to determine a branch circuit, and a switch for determining a load corresponding to the switch. -Input means for inputting load correspondence information; creation means for creating a circuit diagram based on the branch circuit determination information and the switch-load correspondence information; and display for displaying the circuit diagram created by the creation means. Means, a connection pattern generation means for generating a connection pattern based on the circuit diagram created by the creation means, writing means for writing the connection pattern generated by the connection pattern generation means to the storage unit, A circuit diagram creating apparatus comprising: 2. The input means further inputs timer information for setting a timer during a load corresponding to the switch, and the creating means includes the timer information, the branch circuit determination information, and the switch information. 2. The circuit diagram creation device according to claim 1, wherein the circuit diagram is created based on the load correspondence information.