JP2846245B2 - Alarm display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm display device suitable for use in various displays such as alarms in, for example, a central control room of a plant system or a monitor panel thereof.

[0002]

2. Description of the Related Art FIG. 5 is an explanatory diagram showing a circuit configuration of a conventional alarm display device. In the figure, reference numeral 1 denotes a display composed of light emitting diodes, and a plurality of displays 1 connected in series in a horizontal direction are arranged in a plurality of stages in a vertical direction and connected in parallel. Reference numeral 2a denotes a power supply-side wiring of the display 1 which is connected in series in the horizontal direction, and is connected and arranged in a plurality of stages in the vertical direction, and 2b denotes a wiring on the ground side. 3a is an external connection terminal of the power supply side wiring 2a, and 3b is a ground side wiring 2b.
External connection terminal. Reference numeral 4 denotes an alarm display device.

In the alarm display device 4, the external connection terminal 3
A warning signal indicating a failure of the plant system or the like is supplied from a and 3b to the plurality of displays 1, and the plurality of displays 1 are turned on, turned off, or blinked by the warning signal. In this case, a single color is used as the display color of the display 1 in order to suppress an increase in cost.

[0004]

Since the conventional alarm display device is configured as described above, when the display color is changed according to the content of a failure such as a serious failure, a minor failure, or a re-failure of the plant system, In addition, there is a problem that it is necessary to replace the alarm display device with a light emitting diode having a different light emitting color in order to obtain a different display color.

The first aspect of the present invention has been made to solve the above-mentioned problems, and the display color can be easily changed.
And a signal in response to an alarm signal supplied from outside
It is an object of the present invention to obtain an alarm display device capable of outputting a warning to the outside .

According to the invention of claim 2, the display color can be easily changed.
As well as a signal according to the alarm signal supplied from the outside.
It is an object of the present invention to obtain an alarm display device capable of outputting a signal to the outside .

Another object of the present invention is to provide an alarm display device capable of easily changing a display color and outputting a signal corresponding to an alarm signal supplied from the outside to the outside.

A fourth object of the present invention is to provide an alarm display device capable of easily changing a display color and outputting a signal corresponding to an alarm signal supplied from the outside to the outside.

[0009]

According to the first aspect of the present invention, there is provided an alarm display device comprising a plurality of light emitting devices which emit light of different colors.
A light-emitting body, and drive the light-emitting body for each light-emitting body having the same emission color.
Manual switching to manually switch the supply of alarm signals
Switching by switch circuit and manual switch circuit
Supplied from the outside to drive the same luminous body of the same color
Alarm signal, and generates a signal corresponding to the detected alarm signal.
Relay circuit that outputs and outputs contact signals or contactless
Alarm having a contactless logic relay circuit that outputs a signal
It has a signal detection circuit .

[0010] warning display device according to the invention of claim 2, respectively
It has multiple luminous bodies that emit light of different colors,
Light emitters having the same emission color arranged in a row
With different emission colors in the vertical direction,
Supply of an alarm signal for driving each illuminant
Manual changeover switch circuit and manual changeover
The same emission color that is switched by the switch circuit
Detects an externally supplied alarm signal that drives the light emitter
And outputs a signal corresponding to the detected alarm signal.
Relay circuit or non-contact signal output
An alarm signal detection circuit having a contact logic relay circuit is provided.

[0011] The alarm display device according to the third aspect of the present invention is an external display device.
Of the same emission color by the changeover switch circuit provided in the
Turn off the alarm signal for driving each illuminant
Switching configuration and switching
An externally supplied alarm that drives a luminous body of one luminescent color
Detects a signal and outputs a signal corresponding to the detected alarm signal
Relay circuit or contactless signal
Alarm signal with non-contact logic relay circuit that outputs
It has a detection circuit .

[0012] warning display device according to the invention of claim 4, the horizontal
Multiple luminous bodies having the same luminescent color arranged in a row in the direction
Are arranged so that the emission colors are different in the vertical direction.
Of the same emission color by the changeover switch circuit provided in the
Turn off the alarm signal for driving each illuminant
Configuration and the switching switch circuit.
An externally supplied alarm that drives the same illuminant of light color
A relay circuit that detects signals and outputs contact signals
Outputs non-contact signal and has non-contact logic relay circuit
Alarm signal detection circuit .

[0013]

According to the first aspect of the present invention, the alarm display device comprises :
Of the luminous bodies that emit in different luminescent colors,
Supply of an alarm signal for driving the light emitter for each same light emitter
To change the display color easily by manually switching
Moni, detecting an alarm signal for driving the same light emission body luminescent color
And a signal corresponding to the detected alarm signal is used as a contact signal.
Or an alarm that outputs as a non-contact signal and drives the light emitter
Output of contact signal or contactless signal according to the signal to the outside
Enable power.

[0014] The alarm display device according to the second aspect of the present invention,
Multiple lights with the same emission color arranged in a row in the horizontal direction
Place the body further in the vertical direction with different emission colors, each with a different
The same luminescent color among multiple luminous bodies that emit in different luminescent colors
Supply of an alarm signal for driving each illuminant
It is easy to change the display color by switching
Then, an alarm signal for driving the illuminant having the same emission color is driven.
Alarm signal, and responds to the alarm signal that drives the light emitter.
Output of contact signal or contactless signal
I do.

The alarm display device according to the third aspect of the present invention,
Turn off the alarm signal supply to illuminants of the same emission color externally.
Color and the color of the display
An alarm signal that drives one illuminant is detected and the detected alarm is detected.
A signal corresponding to the signal is used as a contact signal or non-contact signal.
The output and the external of the signal according to the alarm signal to drive the luminous body
Enable output to

The alarm display equipment in the invention of claim 4 is
Multiple lights with the same emission color arranged in a row in the horizontal direction
Place the body further in the vertical direction with different emission colors, and
Externally switches the supply of the alarm signal to the light-colored
Easily change colors and emit the same light
Detects an alarm signal that drives the body and responds to the detected alarm signal.
Output as a contact signal or non-contact signal,
Output of a signal according to the alarm signal that drives the light emitter to the outside
Enable.

[0017]

[Embodiment 1] An embodiment of the present invention will be described below with reference to the drawings. FIG.
FIG. 2 is a circuit diagram showing a configuration of the alarm display device of the present embodiment.
In FIG. 1, the same or corresponding parts as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. In the figure, reference numeral 1a denotes a red light emitting diode (light emitting body) emitting red light, 1b denotes a green light emitting diode (light emitting body) emitting green light, and 1c denotes a blue light emitting diode (light emitting body) emitting blue light. A plurality of red light emitting diodes 1a are arranged in a horizontal direction and connected in series to form a red light emitting line. A plurality of green light emitting diodes 1b are arranged in a horizontal direction and connected in series to form a green light emitting line. A plurality of blue light emitting diodes 1c are arranged in a horizontal direction and connected in series to form a blue light emitting line. A red light emitting line composed of the red light emitting diode 1a, a green light emitting line composed of the green light emitting diode 1b, and a blue light emitting line composed of the blue light emitting diode 1c constitute a light emitting line segment 1e whose light emission color can be changed. . In this embodiment, the light emitting line segments 1e are provided in three vertical stages.

Reference numeral 2x denotes a wiring on the power supply side of the red light emitting diode 1a constituting the light emitting line segment 1e, and 2y denotes a green light emitting diode 1 constituting the light emitting line segment 1e.
The wiring 2b on the power supply side b is the wiring on the power supply side of the blue light emitting diode 1c constituting the light emitting line segment 1e. Red light emitting diode 1 of light emitting line segment 1e
a, green light emitting diode 1b and blue light emitting diode 1c
Is connected in parallel for each same color between the light emitting line segments 1e.

Reference numeral 5 denotes a manual changeover switch circuit, which has fixed electrodes 5a, 5b, 5c and a movable electrode 5d, is disposed inside the alarm display device 4, and slides or snaps an operation knob (not shown). Alternatively, the fixed electrode with which the movable electrode 5d contacts can be switched by rotating the operation dial. Further, the manual changeover switch circuit 5 can be constituted by a plurality of DIP switches. The operation knob, operation dial, or DIP switch of the manual changeover switch circuit 5 is arranged in a part that cannot be seen from the front side, and is set in a previously operated and selected state. It will not be changed.

The wiring 2x is connected to the fixed electrode 5a, the wiring 2y is connected to the fixed electrode 5b, and the wiring 2z is connected to the fixed electrode 5c. The movable electrode 5d is the external terminal 3.
a. A red light-emitting diode 1 constituting a light-emitting line segment 1e and arranged in a plurality in the horizontal direction and connected in series to form red, green, and blue light-emitting lines
a, green light emitting diode 1b and blue light emitting diode 1c
Are connected to the wiring 2 in common. Wiring 2
Is further connected to the external connection terminal 3b.

Next, the operation will be described. In FIG. 1, the movable electrode 5d is in contact with the fixed electrode 5b, and the green light emitting diode 1b emits light in response to an alarm signal sent via the external connection terminal 3a, so that the display color of the alarm display device is green. When the movable electrode 5d is switched so as to contact the fixed electrode 5a, the display color of the alarm display device is red. When the movable electrode 5d is switched so as to contact the fixed electrode 5c, the display color of the alarm display device is red.

As described above, in the alarm display device of this embodiment,
By operating and setting an operation knob, an operation dial, or a DIP switch of the manual changeover switch circuit 5 so that a display color required in advance when used for a distribution panel or a control panel of a plant system is one alarm display device. Can be used as an alarm display device with red, green, and blue display colors. Is eliminated, workability is improved,
It is possible to control the increase in operating costs such as installation.

In the embodiment described above, the light emitting diodes are connected in series in the horizontal direction and the light emitting diodes of the same emission color are connected in parallel in the vertical direction. Both of them may be connected in parallel, that is, all diodes of the same luminescent color may be connected in parallel. In such a configuration, the voltage of the alarm signal for causing the diodes of the same luminescent color to emit light may be changed. The level only needs to be large enough to cause one light-emitting diode to emit light, and it is possible to use an alarm signal of a lower voltage level than in the case of serial connection. Needless to say, the current limiting resistor of the light emitting diode is inserted into each required circuit position inside the alarm display device or at each required circuit position outside the alarm display device.

Embodiment 2 FIG. FIG. 2 is a circuit diagram showing a configuration of the alarm display device of the present embodiment. 2, the same or corresponding parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. In the figure, 6a is a relay coil (alarm signal detection circuit, relay circuit) for detecting an alarm signal supplied from the outside to the external connection terminals 3a, 3b, and 6b is a relay contact (alarm signal detection circuit, Relay circuit). 6c and 6d are signal output terminals for outputting contact signals indicating the open or closed state of the relay contact 6b.

In this embodiment, when an external alarm signal is supplied to the external connection terminals 3a and 3b, the red light emitting diode, the green light emitting diode or the blue light emitting diode which is switched by the manual switch circuit 5 is driven. At the same time, the relay coil 6a is excited by an alarm signal supplied from the outside to open or close the relay contact 6b, and the state is output from the signal output terminals 6c and 6d as a contact signal.

Accordingly, in this embodiment, the alarm display color of the alarm display device can be switched by the manual changeover switch circuit 5 provided inside the alarm display device, and a contact signal corresponding to the alarm signal for driving the illuminant is generated. It is possible to output to the outside of the alarm display device.

Embodiment 3 FIG. In the embodiment described above, the contact signal according to the alarm signal is configured to be output to the outside of the alarm display device.
It is also possible to use a non-contact logic relay circuit instead of the relay coil 6a so that a non-contact signal of "H" level or "L" level is output to the outside. FIG.
FIG. 2 is a circuit diagram showing a configuration of an alarm display device of the present embodiment using a contactless logic relay circuit. In FIG. 3, FIG.
The same or corresponding parts are denoted by the same reference numerals and description thereof is omitted. In the figure, 6f is a resistor connected to the base terminal of the transistor 6g, and 6h is a transistor 6g
6i is a Vcc power supply terminal of a contactless logic relay circuit, 6j is a signal output terminal for outputting a contact signal of 'H' level or 'L' level, and 6k is a contactless logic. This is the ground terminal of the relay circuit.

Embodiment 4 FIG. FIG. 4 is a circuit diagram showing the configuration of the alarm display device of the present embodiment. 4, the same portions as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted. In the figure, 3e is an external connection terminal provided on the alarm display device 4 for supplying an alarm signal to the red light emitting diode, 3f is an external connection terminal for supplying an alarm signal to the green light emitting diode, 3f
g is an external connection terminal for supplying an alarm signal to the blue light emitting diode. Reference numeral 7 denotes a changeover switch circuit provided outside the alarm display device 4, and includes fixed electrodes 7a, 7b, 7
c and a movable electrode 7d, and a fixed electrode with which the movable electrode 7d contacts can be switched by sliding or snapping an operation knob (not shown) or rotating an operation dial. Further, the changeover switch circuit 7 can be constituted by a plurality of DIP switches. The operation knob, operation dial, or DIP switch of the changeover switch circuit 7 is previously operated and set to a selected state, and once set, is not normally changed thereafter.

The fixed electrode 7a of the switch circuit 7 is connected to the external connection terminal 3e, the fixed electrode 7b is connected to the external connection terminal 3f, and the fixed electrode 7c is connected to the external connection terminal 3g.

Reference numerals 8a, 8b and 8c denote diodes provided inside the alarm display device 4. The anode side of the diode 8a is connected to the external connection terminal 3e, and the anode side of the diode 8b is connected to the external connection terminal 3f. The anode side of the diode 8c is connected to the external connection terminal 3g. The cathode sides of the diodes 8a, 8b, 8c are commonly connected and connected to one terminal of the relay coil 6a. These diodes 8a, 8b and 8c are provided so that an alarm signal which is switched by the changeover switch circuit 7 and drives a red light emitting diode, a green light emitting diode or a blue light emitting diode does not flow to light emitting diodes of different light emitting colors. ing.

In this embodiment, a red light emitting diode, a green light emitting diode, or a blue light emitting diode is driven by an alarm signal switched and supplied by a changeover switch circuit 7 provided outside the alarm display device, and supplied from the outside. The relay coil 6a is excited by the generated alarm signal, and the relay contact 6b is opened or closed, and the state is determined as a contact signal by the signal output terminals 6c and 6d.
Output from

Therefore, in this embodiment, the alarm display color of the alarm display device can be switched by the changeover switch circuit 7 provided outside the alarm display device, and the contact signal corresponding to the alarm signal for driving the light emitter is displayed as an alarm. It is possible to output to the outside of the device.

In the above-described embodiment, the contact signal corresponding to the alarm signal is output to the outside of the alarm display device. However, the "H" level or "L" level non-contact signal is output to the outside. As shown, the contactless relay logic circuit shown in FIG. 3 can be used instead of the relay coil 6a.

[0034]

As described above, according to the first aspect of the present invention,
It has a plurality of illuminants that emit light with different emission colors, respectively.
An alarm signal for driving the light emitter for each light emitter of the same light color
Switch circuit that switches the supply of water manually
And the light emission color
An alarm signal supplied from outside that drives the same illuminant
Detects and outputs a signal corresponding to the detected alarm signal
Signal output relay circuit or non-contact signal output
Alarm signal detection circuit with a non-contact logic relay circuit
So that the display color can be changed easily.
In addition, a signal corresponding to the alarm signal supplied from the outside is
There is an effect that can be output to.

[0035] According to the second aspect of the present invention , one line is arranged in the horizontal direction.
Multiple luminous bodies with the same luminescent color
Light emitting colors are arranged in different directions and emitted in different light emitting colors.
Among a plurality of illuminants that emit light, each illuminant having the same emission color
Switch the alarm signal supply for driving the light emitters manually
And an alarm signal that drives the same luminous body
Detects the alarm signal that drives the signal, and the alarm that drives the luminous body
Output of contact signal or contactless signal according to the signal to the outside
Display color can be changed easily.
And a signal corresponding to the alarm signal supplied from the outside.
There is an effect that can be output to the outside.

According to the third aspect of the present invention, the externally provided
Switch circuit for each illuminant of the same emission color.
That switches the supply of alarm signals to drive the light emitters
And the same emission color switched by the changeover switch circuit
Detects an externally supplied alarm signal that drives the light emitter
And outputs a signal corresponding to the detected alarm signal.
Relay circuit or non-contact signal output
Equipped with alarm signal detection circuit with contact logic relay circuit
So that the display color can be changed easily.
In both cases, the signal corresponding to the alarm signal supplied from outside is
There is an effect that can be output to the unit.

According to the fourth aspect of the present invention , one line is arranged in the horizontal direction.
Multiple light-emitting bodies with the same emission color
A configuration in which emission colors are arranged differently, and an
Switch circuit for each illuminant of the same emission color.
That switches the supply of alarm signals to drive the light emitters
And the same luminescent color switched by the changeover switch circuit
Detects an externally supplied alarm signal that drives the light emitter
Relay circuit or contactless signal
Alarm that has a contactless logic relay circuit
It is configured to include a signal detection circuit,
Alarm signal that can be easily changed and supplied from outside
The effect is that the signal corresponding to the
You.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a configuration of an alarm display device according to one embodiment of the present invention.

FIG. 2 is a circuit diagram showing a configuration of an alarm display device according to one embodiment of the present invention.

FIG. 3 is a circuit diagram showing a configuration of an alarm display device according to another embodiment of the present invention.

FIG. 4 is a circuit diagram showing a configuration of an alarm display device according to one embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a circuit configuration of a conventional alarm display device.

[Explanation of symbols]

1a red light-emitting diode (light emitter), 1b green light-emitting diode (light emitter), 1c blue light-emitting diode (light emitter), 4 alarm display device, 5 manual switch circuit, 6a relay coil (alarm signal detection circuit, relay circuit) , 6b relay contact (alarm signal detection circuit, relay circuit), 6f, 6h resistor (contactless logic relay circuit), 6g transistor (contactless logic relay circuit), 7 switch circuit.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Nagamoto 1-2-1, Wadasakicho, Hyogo-ku, Kobe Mitsubishi Electric Corporation Control Factory (72) Maki Oki 1 Wadazakicho, Hyogo-ku, Kobe-shi No. 1-2, Mitsubishi Electric Co., Ltd. Control Factory (56) References JP-A-1-255892 (JP, A) JP-A-5-216432 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G08B 1/00-9/20 G09G 3/00-3/16 G09G 3/20-3/34

Claims (4)

(57) [Claims] (1) Light is emitted by an alarm signal, and each of them emits a different light.
A plurality of light emitting light colors and displaying the alarm signal in a light emitting color
A luminous body, and for each luminous body having the same luminescent color,
Manual switch to manually switch the supply of the driving alarm signal
Switch circuit and a switch which is switched by the manual switch circuit.
An externally supplied alarm that drives the same illuminant of light color
Signal and outputs a signal corresponding to the detected alarm signal.
Relay circuit or contactless signal
Signal with a contactless logic relay circuit that outputs a signal
An alarm display device comprising a signal detection circuit . 2. The apparatus emits light in response to an alarm signal, and outputs the alarm signal.
A luminous body for displaying in a luminescent color, wherein the luminous body is arranged in a horizontal direction
Multiple luminous bodies with the same emission color arranged in a row
Are arranged in different emission colors to emit light of the same emission color
Manual supply of alarm signals to drive the illuminant for each body
A manual changeover switch circuit, and a switch for performing the changeover by the manual changeover switch circuit.
An externally supplied alarm that drives the same illuminant of light color
Signal and outputs a signal corresponding to the detected alarm signal.
Relay circuit or contactless signal
Signal with a contactless logic relay circuit that outputs a signal
An alarm display device comprising a signal detection circuit . 3. The device emits light in response to an alarm signal, and outputs the alarm signal.
It has a plurality of luminous bodies for displaying in luminous colors, wherein the luminous bodies are
Was switched by the changeover switch circuit provided in the section
Light is emitted for each illuminant of the same emission color by the alarm signal,
The light emission color is switched by the switch circuit.
The alarm signal supplied from the outside that drives the same illuminant
Signal and outputs a signal corresponding to the detected alarm signal
Relay circuit or contactless signal that outputs a contact signal
Alarm that has a contactless logic relay circuit
An alarm display device comprising a signal detection circuit . 4. A light is emitted by an alarm signal, and said alarm signal is
It has a plurality of luminous bodies to be displayed in luminous colors, wherein the luminous bodies are
Multiple lights with the same emission color arranged in a row in the horizontal direction
The body is arranged and configured to change the emission color in the vertical direction, and
The luminous body is turned off by an external switch circuit.
For each illuminant of the same luminescent color by the replaced alarm signal
Flashes, and is switched by the switch circuit.
Supplied from outside to drive the same luminous body
A relay circuit that detects the alarm signal and outputs a contact signal
Alternatively, a contactless signal is output and the contactless logic relay
An alarm display device comprising an alarm signal detection circuit having a road .