JP2002140947A - Intelligent switch, display method for switch content, switch state monitoring system and centralized control system for plural switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intelligent switch, a display method for a switch content, a switch state monitoring system and a centralized control system for plural switches capable of being intensively controlled by increasing the speed of changing contents such as an operation content and an operation method of each switch. SOLUTION: Intelligent switches 9 each provided with a display part 3 for displaying the content relative to a switch mechanism 1 integrally with the switch mechanism 1 for switching an electric circuit by a rotating operation or a pressing operation are connected to respective electric circuits. The display contents of the respective switches 9 for the display parts 3 are made in a centralized control part 5, transmitted through a transmission mechanism part 16 and displayed by being received by communication circuits 4 of the switches 9, and the display contents are stored in a memory 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intelligent switch in which a switch mechanism which is manually opened and closed is electronically attached, a method for displaying switch contents, a switch state monitoring system, and a centralized management system for a plurality of switches.

[0002]

2. Description of the Related Art Power plants, factories, industrial and public plants, buildings and the like have a centralized control room for electric power, gas, liquid and the like. In this centralized control room, there is an electric panel (control panel),
The electric board includes an array of a number of electrical and instrumentation control systems, and an array of switch mechanisms for opening and closing the electrical circuits manually by an operator. In particular, in a factory, a large number of gas-based switch mechanisms (operating valves) are also arranged in the central control room.

[0003] Of these many switch mechanisms, for example, a switch mechanism that must be prohibited from being used is attached to a large number of operators for browsing. The bill is a card-shaped sheet. In this tag, communication contents such as "operation prohibited" and "continuous driving" are written in red. A thread is attached to this tag. The thread is hooked on an operation knob or the like of the corresponding switch mechanism to display the contents related to the switch mechanism. This switch mechanism is a switch of a mechanical mechanism that is manually rotated and pressed by an operator. When operating the switch mechanism, the operator browses the bill to prevent erroneous operation. In a centralized control room of a power plant, such bills are always hung on a large number of switch mechanisms, and there are many fluttering sheets.

[0004]

However, in such a display method using a tag, it is not possible to change the contents at high speed and simply. In addition, in the case of hanging with a thread, the direction of the bill surface does not face a fixed direction, and it is difficult to read from a centralized control console, and it is difficult to perform centralized management. Furthermore, it is difficult to confirm the current state of the switch mechanism at a glance either on / off. Furthermore, the operation history of each switch mechanism only depends on a record of a specific operator, and often has a time error or a difference in memory of the contents, and thus cannot be accurately known.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and the contents of operation of each switch, such as the operation method, can be changed at a high speed. It is an object of the present invention to provide an intelligent switch, a switch content display method, a switch status monitoring system, and a centralized management system for a plurality of switches.

[0006]

In order to achieve the above object, an intelligent switch according to the present invention comprises a switch mechanism for opening and closing an electric circuit by a rotating operation or a pressing operation;
It is characterized by comprising a display unit provided integrally with the switch mechanism, and a communication circuit connected to the display unit for receiving display contents inputted from the outside.

The intelligent switch according to the present invention includes a switch mechanism for opening and closing an electric circuit by a turning operation or a pressing operation, a display unit provided integrally with the switch mechanism, and the rotating unit provided integrally with the switch mechanism. A lock mechanism for stopping operation or pressing operation, and a lock / unlock control circuit connected to the lock mechanism and executing a lock / unlock operation of the lock mechanism by inputting an external instruction. And

According to the method for displaying switch contents of the present invention, an intelligent switch for opening and closing an electric circuit by a rotating operation or a pressing operation is connected to a plurality of electric circuits. The contents displayed on the display unit of each intelligent switch are transmitted from the central control unit and displayed, and the contents are displayed. The contents related to the switch are operation prohibition,
During the operation, the operation history of the switch is displayed. The contents related to the switches are characters, figures, images, etc. of arbitrary colors created by the personal computer in the central control unit.

The switch state monitoring system of the present invention has a display unit for displaying the contents related to the switch, and an intelligent switch for opening and closing the electric circuit by a turning operation or a pressing operation is connected to each of the plurality of electric circuits. Means for transmitting and displaying the display content of the intelligent switch on the display unit from the central control unit, and enabling the content displayed on the display unit of each intelligent switch to be read out for each intelligent switch in the memory of the central control unit. It is characterized by comprising means for storing, and means for reading the display content of each intelligent switch stored in the memory and monitoring the state of each switch.

A centralized management system for a plurality of switches according to the present invention has a display unit for displaying contents related to the switches, and an intelligent switch for opening and closing an electric circuit by a rotating operation or a pressing operation is connected to each of the plurality of electric circuits. Means for transmitting, from the central control unit, display contents of the intelligent switches to the display unit; means for readable storage of the display contents as operation history for each intelligent switch in the memory of the central control unit; Means for displaying a history on the display unit in response to a request from the intelligent switch.

[0011]

Next, an embodiment of the intelligent switch according to the present invention will be described with reference to FIG. FIG.
FIG. 2 is a plan view for explaining an embodiment of the switch of the present invention. The switch mechanism 1 is turned on and turned off by turning the operation knob 2 by hand.
It is a mechanical switch for selecting between. A display unit 3 is provided integrally with the switch mechanism 1. The display unit 3 is provided above the front panel of the switch mechanism 1 flush. The display unit 3 is, for example, a liquid crystal display device capable of color display and monochrome display. This liquid crystal display (LCD) may be a one-dimensional LCD or a two-dimensional LCD. Such a display unit 3 has a circuit configuration as shown in FIG. FIG. 2 is a circuit configuration diagram of the display unit in FIG.

The communication circuit 4 is a circuit for receiving a display signal for display on the display unit 3 transmitted from an external central control unit 5 or the like. The output circuit of the communication circuit 4 includes:
Display signal amplifying circuit 6 for amplifying the received display signal
Is connected. A display circuit 7 for driving the display unit 3 is connected to an output circuit of the display signal amplifier circuit 6. An LCD 8 is connected to an output circuit of the display circuit 7. Thus, the display unit 3 of the switch mechanism 1 is configured. The display unit 3, the switch mechanism 1, and the communication circuit 4 constitute an intelligent switch 9.

The display section 3 of the intelligent switch 9 shown in FIG. 1 displays "operation prohibited" in red on a color liquid crystal display screen. This display content is a signal transmitted from the outside as follows. That is, the content displayed on the display unit 3 is a signal such as a character, an image, or a graphic created by the central control unit 5 using a personal computer or the like. It is desirable to display these signals in color as follows. That is,
In the case of the prohibition information such as “operation prohibition”, for example, it is displayed in red. Information indicating a state such as "during test" or "during operation" is displayed in green, for example. Further, when the content requested from the intelligent switch 9 is displayed, for example, the display is blue.

Next, the operation of the intelligent switch 9 will be described. The display content transmitted from the central control unit 5 is received by the communication circuit 4. The display contents received by the communication circuit 4 are amplified by the display signal amplifier circuit 6 and then amplified by the display device 3.
To be displayed. When the operator attempts to turn the operation knob 1 of the switch 2 from “OFF” to “ON”, the display unit 3
Browse the "operation prohibited" displayed in and stop the operation.
When the user wants to know the reason for the “operation prohibition”, the user presses the reason request button 10 of the intelligent switch 9 so that the reason for the “operation prohibition” displayed on the display unit 3 is sent to the central control unit 5 via the communication circuit 4. Can request.

Upon receiving the request for the reason, the central control unit 5 reads the information of the intelligent switch 9 stored in the memory and transmits the information to the intelligent switch 9. The transmitted information is received by the communication circuit 4 and displayed on the display unit 3 in blue. A changeover switch may be provided on the display unit 3 so that the content of the reason displayed in blue and the “operation prohibited” displayed in red may be selectively displayed. After browsing, the display always returns to the "operation prohibited" red display. As described above, the central control unit 5 collectively performs display, monitoring, and management of a large number of switches as a center.

Next, an embodiment in which the intelligent switch 9 having such a function is applied to a switch of an electric board in a control room of a power plant will be described with reference to FIG. FIG.
FIG. 1 is a system configuration diagram for explaining a centralized management system of a plurality of switches. The same devices as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. The intelligent switch 9 is connected to each of a large number of electric circuits in the power plant. The display contents of these intelligent switches 9 are created in the central control unit 5.

That is, the central control unit 5 has an information input keyboard 15 such as a personal computer for creating display contents on the display unit 3.
Is provided. The output circuit of the information input keyboard 15 is connected to a transmission mechanism 16 for supplying a signal of the display content created by the information input keyboard 15 to the intelligent switch 9. Further, an output circuit of the information input keyboard 15 is connected to an information display device 17 for displaying display contents created by the information input keyboard 15. This information display device 1
Reference numeral 7 can also be used as a monitor for the personal computer.

The output circuit of the information input keyboard 15 has a memory 18 for storing the display contents.
Is connected. Furthermore, information input keyboard 1
The printer 19 for printing the display contents as necessary is connected to the output circuit 5. The central control unit 5 is provided with a CPU 20 for controlling signal processing in the central control unit 5 and each intelligent switch 9. The CPU 20 controls transmission of the display content created by the information input keyboard 15, receives a request signal from each intelligent switch 9, and controls transmission of a reply signal. The transmission mechanism section 16 of the central control section 5 and the communication circuit 4 of each intelligent switch 9 are connected by wire or wirelessly. In this way, a centralized management system 21 of a plurality of switches is configured.

Next, the operation of the centralized management system 21 for a plurality of switches will be described. The contents displayed on the display unit 3 of each intelligent switch 9 are created by the information input keyboard 15 of the central control unit 5. The information input keyboard 15 is, for example, a personal computer, and can create characters, figures, images, and the like as needed. The display contents in this embodiment are characters and are created using a word processing function of a personal computer. The created character is transmitted to the intelligent switch 9 via the transmission mechanism 16 under the control of the CPU 20. That is, the information input keyboard 15
Is displayed on the information display device 17,
When confirmed, it is stored in the memory 18 at the same time. The stored contents are the stored date, time, reason, name of the person in charge, and the like. The reasons are factors of the display contents, specific explanations, and the like. For example, if "operation prohibited", the reason is displayed as "accident at power plant".

The reason is that the display unit 3 reads out the data from the memory 18 in response to a request from each intelligent switch 9.
Can be displayed. If the display on the display unit 3 is not possible, it can be printed by the printer 19 or displayed on the information display device 17. This information display device 17
May display an image such as an accident. There may be a case where the user wants to confirm details in this image. In this case, providing the information display device 17 with an enlargement function is effective for checking details. Of course, if it is desired to return to the entire image, the information display device 17 is effective with the reduction function. An indication of whether the switch mechanism 1 is ON or OFF can be displayed on the information display device 17 of the central control unit 5. That is, the state of the switch mechanism 1 can be managed by the central control unit 5.

The display contents related to the switch are contents that the operator who operates the switch confirms before the operation. The contents include, for example, alarm contents such as “operation prohibited” and “use prohibited”, current states such as “operating” and “switch state (monitoring)”, “operation procedure of the switch”, “contents of the switch” ”“ Use of the switch ”“ Usage notice ”
And so on. As described above, the memory 1 of the central control unit 5
8 stores the contents displayed on the display unit 3 of the intelligent switch 9. Therefore, the desired display contents of the intelligent switch 9 can be displayed as the operation history.

This operation history (trend) is information in which the contents displayed on the display unit 3 of the switch in the past are rearranged with time, as shown in FIG. FIG.
9 is a display screen for explaining a specific example of an operation history. Such an operation history is information obtained by rearranging the display contents of the intelligent switches 9 stored in the memory 18 over time by the function of the personal computer. The operation history can also be displayed on the display unit 3 of the intelligent switch 9. Further, the operation history can be displayed on the information display unit 17 of the central control unit 5 or can be printed by the printer 19.

In the above embodiment, the switching action is stopped only by the display on the display unit 3. However, the switching action may be stopped physically at the same time. This physical stop is to stop the switch operation because it is an absolute content depending on the application. Next, the configuration of the intelligent switch with a lock mechanism will be described with reference to FIG. FIG. 5 is a plan view for explaining another embodiment of FIG. The same devices as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.
This embodiment is a case in which the operation knob 2 for rotating the intelligent switch 9 described with reference to FIG.

In this mechanism, the control rod 26 extends upward from the lock mechanism 25 and stops at a position where the tip of the control rod 26 prevents the operation knob 2 from rotating. The lock mechanism 25 has a built-in electromagnetic coil. A current is supplied to this electromagnetic coil to generate a magnetic field, or by reducing this current, a lock bar (lock bar) 2 is provided.
6 is electrically moved up and down (arrow A). Accordingly, the restraining bar 26 is a magnetic biomaterial or a partially magnetic material. Therefore, when the operation knob 2 of the switch mechanism 1 is locked, a magnetic field is generated by passing a current through the electromagnetic coil of the lock mechanism 25. The stop bar 26
Moves upward from within the lock mechanism 25. The tip of the stop bar 26 due to this movement stops at a position in contact with or near the rotation axis of the operation knob 2. FIG. 5 shows such a restrained state (locked).

That is, the distal end of the stop rod 26 is located at a position where the operation knob 2 is prevented from rotating clockwise in the “enter” direction. In order to release (unlock) the lock, the current flowing through the electromagnetic coil of the lock mechanism 25 is temporarily reduced to move the control rod 26 downward. By this movement, the tip of the stop bar 26 is separated from the vicinity of the rotation axis of the operation knob 2, and the operation knob 2 can be rotated. In the above-described embodiment, the stopping (locking) of one electric circuit by the switch mechanism 1 has been described. However, as shown in FIG.
A double-sided switch 31 for controlling the opening and closing of the circuit may be applied.

FIG. 6 is a plan view for explaining another embodiment of FIG. (A) is a plan view of the intelligent switch. FIG. 3B is an explanatory diagram showing an equivalent circuit diagram of the double-sided switch 31 in FIG. 1 and 4 are given the same reference numerals, and detailed description thereof will be omitted. FIG. 6A is the same as FIG. 5 except that the switch mechanism is a double-sided switch 31 that performs open / close control of two circuits. This double-sided switch 31 is shown in FIG.
As shown in (B), the first and second switch circuits 3
It consists of 2,33.

The first switch circuit 32 is a switch connected to a number of power control electric circuits (sequence circuits) provided in a central control room in a power plant, for example. The contact A is connected to an external sequence circuit. The second switch circuit 33 is a switch connected to the input / output circuit of the communication circuit 4. The contact B is connected to the transmission mechanism 16 as a contact state grasping signal of the central control unit 5. The first and second switch circuits 32 and 33 shown in FIG. 6B show a state where the operation knob 2 is “off”. When the operation knob 2 of the double-sided switch 31 is turned rightward and turned on, the first switch circuit 32 is turned on.
Is connected to the contact A, and the second switch circuit 33 is connected to the contact B.

Next, an embodiment of a switch which is opened and closed by a pressing operation will be described with reference to FIG. FIG. 7 is an intelligent switch for explaining another embodiment of FIG. 5, in which FIG. 7A is a plan view and FIG. 7B is a cross-sectional view thereof. The same devices as those in FIGS. 2 and 5 are denoted by the same reference numerals, and detailed description thereof will be omitted. A push button switch 36 is provided in the housing 35 whose upper surface is open. The push button switch 36 opens and closes by controlling the contact state and the non-contact state of the fixed contact terminal 37 and the movable contact terminal 38.

At the center of the upper surface of the moving contact terminal 38,
The lower end surface of the button 39 having a T-shaped cross section made of an insulator is integrally fixed. This state is schematically shown in the drawing. The lock mechanism 40 of the push button switch 36
It is provided in the housing 35. The lock mechanism 40 is the same device as that described in FIG. The stop bar 26 is configured to move in the left-right direction indicated by the arrow 41 to stop the pressing operation of the push button switch 36.

In the housing 35, a communication circuit 4, a display circuit 7, and a display unit 3 are further provided in a laminated manner. Thus, the intelligent switch 42 using the push button switch is configured. FIG. 8 is a plan view and a cross-sectional view for explaining an embodiment in which the display unit 3 of FIG. 7 is provided on the pressing plate 45 of the push button switch 36. The same parts as those in FIG. 7 are denoted by the same reference numerals, and detailed description thereof will be omitted. On the pressing plate 45 of the T-shaped cross-section button 39 described with reference to FIG.
6 are provided integrally. Therefore, the size of the display surface of the LCD 46 is the size of the pressing plate 45.

This size reduces the display area. Since the pressing plate 45 is a viewing position without fail, reliability is high. The wiring between the LCD 46 and the display circuit 7 can be configured by providing a wiring hole in the pressing plate 45 of the button 39 having a T-shaped cross section and wiring. In the above-described embodiment, the switch of the electric circuit has been described. However, a display unit may be provided in a valve (opening / closing device) that shuts off or circulates a flow path of a pipe for sending a liquid or a gas. FIG. 9 is a plan view for explaining another embodiment of FIG. The valve 51 provided in a pipe for sending a liquid or a gas is configured as follows. The valve 51 is turned to the right to shut off the pipe line, and is turned to the left to open the pipe line.

A display section 52 for displaying a notice on use of the valve 51 is provided integrally with the valve 51. The display section 52 shows a state in which “opening / closing prohibited” is described. The display on the display unit 52 is performed by the centralized management system shown in FIG. FIG. 10 is a configuration diagram of a system for centrally managing a large number of valves. The difference between FIG. 10 and FIG. 3 is that the intelligent switch 9 in FIG. 3 is replaced with an opening / closing mechanism using a valve. FIG.
The same devices as those described above are denoted by the same reference numerals, and detailed description thereof will be omitted. The display content on the display unit 52 is a signal created by the central control unit 5 and received by the communication circuit 4 from a signal (a signal of the display content) transmitted from the central control unit 5. Further, a lock mechanism 53 for stopping the rotation of the valve 51 is provided.

The structure of the lock mechanism 53 is shown in FIGS.
Since the device has the same function as the lock mechanism described in the above section, the same reference numerals are given and the description is omitted. In the case of "open / close prohibition", the following procedure is performed. That is, the blocking bar 26 extends upward from the lock mechanism 25. The tip of the stop bar 26 abuts against a valve component to prevent the valve 51 from rotating leftward. In addition, when the valve 51 is opened, the following procedure is performed based on a control signal from the central control unit 5. The display content of the display unit 52 “open / close prohibited” is changed to “usable”. After that, the lock bar 53 moves the control rod 26 downward to allow the valve 51 to rotate in the “open” direction. Up and down direction 5 of the above-mentioned stop bar 26
The movement to 4 is also automatically executed under the control of the central control unit 5. The above-described valve 51 is provided in various kinds of gas and liquid pipes, and these can be collectively controlled collectively.

Embodiment 2 In this embodiment, contents which are relatively frequently used among the displayed contents are set as fixed items, and contents which are used less frequently are generated and displayed as variable items each time. This will be described with reference to FIG. FIG. 11 is a plan view of an intelligent switch for explaining another embodiment of FIG.
The same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. The display frequency is obtained by reading the content displayed on the display unit 3 for each intelligent switch 9 in FIG. 3 from the memory 18 of the central control unit 5. From this display frequency, a relatively frequent display such as "operation prohibited"
The contents such as “failure”, “short circuit”, “during operation” and “under test” are printed as fixed items on the panel 61 as shown in FIG.

On the surface of the panel 61, for example, a light emitting diode 62 is provided as a dot display at a prefix position of each of these fixed items. This light emitting diode 62
Is red for “operation prohibited”, “failure”, “short circuit”, etc. The emission color of “during operation” is green. Such a panel 61 is provided integrally with the intelligent switch 9 shown in FIG. Thus, the improved intelligent switch 63 is configured. Next, a method of displaying each intelligent switch 63 on the row of light emitting diodes 62 will be described with reference to FIG.
FIG. 12 is an explanatory diagram of a centralized control system of the intelligent switch of FIG.

That is, the intelligent switch 63 is
This is a system replacing the intelligent switch 9 of FIG. The same parts as those in FIG. 3 are denoted by the same reference numerals, and detailed description will be omitted. As a method of displaying the intelligent switch 63 on the light emitting diode array, there are a method of controlling the lighting on the intelligent switch 63 side and a method of controlling the lighting by the control of the central control unit 5. The former lighting method is displayed by connecting a switch to each light emitting diode 62 of the panel 61 of the intelligent switch 63 and turning on the corresponding switch by a person in charge. At the same time, this display content is transmitted from the communication circuit 4 to the central control unit 5,
It is stored in the memory 18.

In the latter lighting method, a lighting control signal to the light emitting diode 62 is transmitted from the central control unit 5 to be displayed, and is stored in the memory 18. Other infrequently displayed contents are displayed on the display unit 3 as in the first embodiment. That is, the display contents are created by the central control unit 5 and the transmission mechanism unit 1
6 to the communication circuit of the intelligent switch 63. The transmitted display contents are displayed on the display unit 3.
The display contents on the display unit 3 are, for example, “monitoring”, “operation procedure”, “use (power supply circuit, power transmission circuit)” and the like.

Embodiment 3 In this embodiment, a case will be described with reference to FIG. 13 where the display section 3 of each intelligent switch 9 does not always light up, but displays only when display is necessary. FIG.
FIG. 4 is a plan view of an intelligent switch for explaining another embodiment of FIG. 1. The same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. This embodiment is a case where a display is made only when a human approaches the area where the intelligent switches 65 are arranged when the switch is to be operated. The former intelligent switch 65 has a switch 66 provided on the panel of the intelligent switch 9. This switch 66 is connected to the power circuit for the lighting circuit of the display unit 3.
Only when the switch 66 is turned on, the lighting circuit power supply circuit is turned on. That is, the display unit 3 is in a display state. The means (sensor) for detecting the approach of the latter person is, for example, photoelectric detection means, means for detecting sound waves, and the like.

The power supply circuit for the lighting circuit is turned ON only when these sensors detect it. Further, the power supply circuit may be automatically turned off after a predetermined time elapses, if necessary. Such a display method extends the life of the display unit 3,
It is effective for energy saving.

In the above embodiment, the switch mechanism for opening / closing the electric circuit by the turning operation or the pressing operation includes one for turning the opening / closing operation knob up and down by the operator's hand, one for turning in the plane, and one for pressing. It is of a mechanical type such as one that presses a button.

[0041]

As described above, according to the present invention, the change of the operation contents of each switch, the operation method, and the like can be speeded up, can be centrally managed, and the operation history can be accurately recognized. can do.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an embodiment of an intelligent switch according to the present invention.

FIG. 2 is a circuit configuration diagram for explaining a specific configuration of a display unit in FIG. 1;

FIG. 3 is a circuit diagram illustrating an embodiment of a centralized management system according to the present invention.

FIG. 4 is a view for explaining contents displayed on a display unit of the intelligence switch in FIG. 3;

FIG. 5 is a plan view for explaining another embodiment of FIG. 1;

FIG. 6 is a plan view for explaining another embodiment of FIG. 4 and an equivalent circuit diagram of a switch mechanism.

FIG. 7 is a plan view and a cross-sectional view for explaining another embodiment of FIG. 4;

FIG. 8 is a plan view and a cross-sectional view illustrating another embodiment of FIG. 4;

FIG. 9 is a plan view for explaining another embodiment of FIG. 4;

FIG. 10 is a circuit configuration diagram for explaining a centralized control system of the valve in FIG. 9;

FIG. 11 is a plan view for explaining another embodiment of FIG. 1;

FIG. 12 is a circuit diagram for explaining a centralized control system of the intelligent switch.

FIG. 13 is a plan view for explaining another embodiment of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Switch mechanism, 2 ... Operation knob, 3, 52 ... Display part, 4 ... Communication circuit, 5 ... Central control part, 6 ... Signal amplification circuit, 7 ... Output circuit, 8,46 ... LED, 9, 4
2, 63, 65 ... intelligent switch, 10 ... reason request button, 15 ... information input keyboard, 16 ...
Transmission mechanism, 17 ... Information display device, 18 ... Memory, 1
9: Printer, 20: CPU, 21: Centralized management system for multiple switches, 25, 53: Lock mechanism, 26:
Lock bar, 31 Double-sided switch, 32
... first switch circuit, 33 ... second switch circuit,
35 ... housing, 36 ... push button switch, 37
... fixed contact terminal, 38 ... moving contact terminal, 39 ... button switch, 40 ... lock mechanism, 41 ... arrow, 45
... Pressing plate, 51 ... Valve, 52 ... Left and right direction, 61 ...
Panel, 62: Light-emitting diode, 66: Switch

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference)

Claims (7)

[Claims] 1. A switch mechanism for opening and closing an electric circuit by a rotating operation or a pressing operation, a display unit provided integrally with the switch mechanism, and a display unit connected to the display unit and receiving display contents inputted from outside. An intelligent switch, comprising: a communication circuit. 2. A switch mechanism for opening and closing an electric circuit by a turning operation or a pressing operation, a display unit provided integrally with the switch mechanism, and a switch unit provided integrally with the switch mechanism for performing the turning operation or the pressing operation. An intelligent switch, comprising: a lock mechanism for stopping; and a lock / unlock control circuit connected to the lock mechanism and executing a lock / unlock operation of the lock mechanism by inputting an external instruction. 3. An intelligent switch, which has a display unit for displaying contents relating to the switch and opens and closes an electric circuit by a rotating operation or a pressing operation, is connected to each of the plurality of electric circuits, and is connected to the display unit of each of the intelligent switches. Displaying the contents of the switch from the central control unit, displaying the contents, and storing the contents. 4. The switch content display method according to claim 3, wherein the content related to the switch is operation prohibition, during operation, switch operation history, and the like. 5. The method according to claim 3, wherein the content related to the switch is a character, a graphic, an image, or the like created by a personal computer in a central control unit. 6. An intelligent switch having a display unit for displaying contents related to a switch and opening and closing an electric circuit by a rotating operation or a pressing operation is connected to a plurality of electric circuits. Means for transmitting and displaying the display content of the intelligent control unit from the central control unit; means for storing the content being displayed on the display unit of each intelligent switch in the memory of the central control unit in a readable manner for each intelligent switch; and the memory A means for reading the display content of each intelligent switch stored in the switch and monitoring the state of each switch. 7. An intelligent switch having a display unit for displaying contents related to a switch and opening / closing an electric circuit by a rotating operation or a pressing operation is connected to a plurality of electric circuits. Means for transmitting display contents from the central control unit; means for storing the display contents as an operation history for each intelligent switch in a memory of the central control unit so as to be readable; and a request for the operation history from the intelligent switch. Means for displaying on the display unit, a centralized management system for a plurality of switches.