JPH0836677A - Alarm display device - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain an alarm display device whose display color can be easily changed. A manual change-over switch circuit is provided, which has a plurality of light-emitting bodies that emit different emission colors, and manually switches the supply of an alarm signal for driving the light-emitting bodies of the same emission color.

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 various displays such as alarms in a central control room of various plant systems or its monitoring panel.

[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 device composed of a light emitting diode, and a plurality of display devices 1 connected in series in the horizontal direction are arranged in parallel in a plurality of stages in the vertical direction. Reference numeral 2a denotes wiring on the power supply side of the display device 1 connected in series in the lateral direction and connected in parallel in a plurality of stages in the vertical direction, and 2b denotes wiring on the ground side. 3a is an external connection terminal of the power supply side wiring 2a, 3b is a ground side wiring 2b
It is an external connection terminal. Reference numeral 4 denotes an alarm display device.

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

[0004]

Since the conventional alarm display device is constructed as described above, when the display color is changed in accordance with the contents of failure such as serious failure, minor failure or re-failure of the plant system, However, 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 invention of claim 1 has been made to solve the above problems, and an object thereof is to provide an alarm display device capable of easily changing the display color.

An object of the present invention is to provide an alarm display device which can easily change the display color.

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

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

An object of the present invention is to provide an alarm display device which can easily change the display color and can output a signal according to an alarm signal supplied from the outside to the outside.

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

It is an object of the present invention to provide an alarm display device which can easily change the display color and can output a signal according to an alarm signal supplied from the outside to the outside.

[0012]

An alarm display device according to a first aspect of the present invention has a plurality of light emitting bodies which emit light of different emission colors, and each light emitting body emits light of the same emission color. It is provided with a manual changeover switch circuit for manually switching the supply of the driving alarm signal.

In the alarm display device according to the second aspect of the present invention, a plurality of light emitters arranged in a row in the horizontal direction and having the same emission color are arranged so that the emission colors are different in the vertical direction. .

An alarm display device according to a third aspect of the present invention detects an alarm signal supplied from the outside that drives a light-emitting body of the same emission color and is switched by a manual changeover switch circuit, and responds to the detected alarm signal. And a warning signal detection circuit for outputting the signal.

The alarm display device according to the invention of claim 4 is provided with an alarm signal detection circuit having a relay circuit for outputting a contact signal or a contactless logic relay circuit for outputting a contactless signal.

In the alarm display device according to a fifth aspect of the present invention, a switch circuit provided outside switches the supply of an alarm signal for driving each light-emitting body of the same emission color, and the switching. An alarm signal detection circuit that detects an alarm signal supplied from the outside that drives a light-emitting body of the same emission color and is switched by a switch circuit, and outputs a signal according to the detected alarm signal is provided.

An alarm display device according to a sixth aspect of the present invention has a structure in which a plurality of light emitters arranged in a row in the horizontal direction and having the same emission color are arranged so that the emission colors are different in the vertical direction. It is a thing.

The alarm display device according to the invention of claim 7 comprises an alarm signal detection circuit having a relay circuit for outputting a contact signal or a contactless logic relay circuit for outputting a contactless signal.

[0019]

In the alarm display device according to the present invention, the alarm signal is manually supplied to each light emitting body of the same light emitting color among the plurality of light emitting bodies which emit different light emitting colors. To change the display color easily.

The alarm display device according to the invention of claim 2 is
A plurality of light emitters having the same emission color arranged in a row in the horizontal direction are arranged so that the emission color is further changed in the vertical direction, and an alarm signal for driving each light emitter of the same emission color is output. The supply can be switched manually to easily change the display color.

The alarm display device according to the invention of claim 3 is
A signal corresponding to the detected alarm signal is detected and the alarm signal is detected by manually switching the supply of an alarm signal for driving the same light-emitting body of each light-emitting color to facilitate the change of the display color. To enable the output of a signal according to the alarm signal for driving the light emitter to the outside.

In the alarm signal detection circuit of the alarm display device according to the invention of claim 4, it is possible to easily change the display color by manually switching the supply of the alarm signal for driving each light emitting body of the same light emitting color. At the same time, it detects an alarm signal for driving a light emitting body of the same emission color, outputs a signal corresponding to the detected alarm signal as a contact signal or a non-contact signal, and responds to the alarm signal for driving the light emitting body. It is possible to output a contact signal or a non-contact signal to the outside.

The alarm display device according to the invention of claim 5 is
The supply of the alarm signal for driving the light-emitting body of the same emission color is switched externally to facilitate the operation of changing the display color from the outside, and the alarm signal for driving the light-emitting body of the same emission color is detected. A signal corresponding to the detected alarm signal is output, and the signal corresponding to the alarm signal for driving the light emitter can be output to the outside.

The alarm display device according to the invention of claim 6 is
A plurality of light emitters having the same emission color arranged in a row in the horizontal direction are arranged so that the emission color is further changed in the vertical direction, and an alarm signal for driving the light emitters having the same emission color is supplied. It is easy to change the display color by changing the display externally, and an alarm signal for driving a light emitting body having the same emission color is detected, and a signal corresponding to the detected alarm signal is output to drive the light emitting body. It enables to output a signal according to the alarm signal to the outside.

The alarm display device according to the invention of claim 7 is
Switching the supply of the alarm signal to the light-emitting body of the same emission color externally, facilitating the change of the display color, detecting the alarm signal driving the same light-emitting body of the emission color, and the detected alarm signal A corresponding signal is output as a contact signal or a non-contact signal, and a signal corresponding to an alarm signal for driving the light emitter can be output to the outside.

[0026]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram showing the configuration of the alarm display device of this embodiment. In FIG. 1, parts that are the same as or equivalent to those in FIG. 4 are assigned the same reference numerals and explanations thereof are omitted. In the figure, 1a is a red light emitting diode (light emitter) whose emission color is red,
1b is a green light emitting diode (light emitter) whose emission color is green,
Reference numeral 1c is a blue light emitting diode (light emitting body) whose emission color is blue. A plurality of red light emitting diodes 1a are arranged in the lateral direction and connected in series to form a red light emitting line. A plurality of green light emitting diodes 1b are arranged in the lateral direction and connected in series to form a green light emitting line. A plurality of blue light emitting diodes 1c are arranged in the lateral direction and connected in series to form a blue light emitting line. The red light emitting line consisting of these red light emitting diodes 1a and the green light emitting diode 1
b green light emitting line and blue light emitting diode 1c
The light emitting line segment 1e whose emission color can be changed is configured by the blue light emitting line consisting of. In this embodiment, the light emitting line segments 1e are provided in three stages in the vertical direction.

2x is a wiring on the power source side of the red light emitting diode 1a constituting the light emitting line segment 1e, and 2y is a green light emitting diode 1 constituting the light emitting line segment 1e.
The power supply side wiring 2b and the power supply side wiring 2z of the blue light emitting diode 1c constituting the light emitting line segment 1e are shown. Red light emitting diode 1 of light emitting line segment 1e
a, a green light emitting diode 1b, and a blue light emitting diode 1c
Are 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 arranged inside the alarm display device 4, and slides or snaps an operation knob (not shown). Or by rotating the operation dial, the fixed electrode with which the movable electrode 5d contacts can be switched. Further, the manual changeover switch circuit 5 can be composed of a plurality of dip switches. The operation knob, the operation dial, or the DIP switch of the manual changeover switch circuit 5 is arranged in a portion that cannot be seen from the front side, and is set in a preselected state by being operated in advance, and once set, it is normally set thereafter. It cannot be changed.

A wire 2x is connected to the fixed electrode 5a, a wire 2y is connected to the fixed electrode 5b, and a wire 2z is connected to the fixed electrode 5c. The movable electrode 5d is the external terminal 3
connected to a. Red light emitting diode 1 forming a light emitting line segment 1e, which is arranged in a plurality in the lateral direction and connected in series to form red, green, and blue light emitting lines.
a, a green light emitting diode 1b, and a blue light emitting diode 1c
The ground side of is commonly connected to the wiring 2. 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, the green light emitting diode 1b emits light in response to an alarm signal sent through the external connection terminal 3a, and the display color of the alarm display device becomes green. Further, when the movable electrode 5d is switched to contact the fixed electrode 5a, the display color of the alarm display device becomes red. Further, when the movable electrode 5d is switched so as to contact the fixed electrode 5c, the display color of the alarm display device becomes red.

As described above, in the alarm display device of this embodiment,
One alarm display device by operating and setting the operation knob, the operation dial or the DIP switch of the manual changeover switch circuit 5 so that the display color required in advance when used in the switchboard or control panel of the plant system Can also be used as an alarm display device with red, green, and blue display colors, and it is necessary to replace the light emitting diode or lamp that is the light emitter, or replace the alarm display device with an alarm display device of another display color. To improve workability,
It is possible to control the increase of work cost such as installation.

In the embodiments described above, the light emitting diodes are connected in series in the horizontal direction and those having the same emission color in the vertical direction are connected in parallel. However, the light emitting diodes are connected in the horizontal and vertical directions. Those connected in parallel, that is, all the diodes of the same emission color may be connected in parallel, and when configured in this way, the voltage of the alarm signal for causing the diodes of the same emission color to emit light The level has only to be large enough to cause one light emitting diode to emit light, and it is possible to use an alarm signal having a lower voltage level than in the case of serial connection. Further, it goes without saying that the resistors for limiting the current of the light emitting diode are inserted in respective necessary circuit positions inside the alarm display device or in respective necessary circuit positions outside the alarm display device.

Example 2. FIG. 2 is a circuit diagram showing the configuration of the alarm display device of this embodiment. In FIG. 2, parts that are the same as or correspond to those in FIG. 1 are given the same reference numerals and description thereof is omitted. In the figure, 6a is a relay coil (alarm signal detection circuit, relay circuit) for detecting an alarm signal externally supplied to the external connection terminals 3a and 3b, and 6b is a relay coil 6a.
It is a relay contact (alarm signal detection circuit, relay circuit) that is opened and closed by. 6c and 6d are signal output terminals for outputting a contact signal indicating the open or closed state of the relay contact 6b.

In this embodiment, when an alarm signal is externally 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 switched by the manual changeover 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.

Therefore, in the present 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 the contact signal corresponding to the alarm signal for driving the light emitter is changed. It is possible to output to the outside of the alarm display device.

Example 3. Although the contact signal corresponding to the alarm signal is output to the outside of the alarm display device in the above-described embodiment, a non-contact signal of'H 'level or'L' level is output to the outside. Moreover, it is also possible to use a non-contact logic relay circuit instead of the relay coil 6a. FIG. 3 is a circuit diagram showing the configuration of the alarm display device of this embodiment using a contactless logic relay circuit. 3, parts that are the same as or correspond to those in FIG. 2 are assigned the same reference numerals and explanations thereof are omitted. 6f in the figure
Is a resistor connected to the base terminal of the transistor 6g, 6
h is an additional resistor connected to the collector terminal of the transistor 6g, 6i is a Vcc power supply terminal of the contactless logic relay circuit, 6j is a signal output terminal for outputting a contactless signal of'H 'level or'L' level, 6k Is the ground terminal of the contactless logic relay circuit.

Embodiment 4 FIG. FIG. 4 is a circuit diagram showing the configuration of the alarm display device of this embodiment. 4, the same parts as those in FIGS. 1 and 2 are designated by the same reference numerals and the 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, and 3g is a blue light emitting diode. It is an external connection terminal for supplying an alarm signal. 7 is a changeover switch circuit provided outside the alarm display device 4,
It has fixed electrodes 7a, 7b, 7c and movable electrode 7d, and switches the fixed electrode which movable electrode 7d contacts by sliding or snapping an operation knob (not shown) or rotating an operation dial. You can Further, the changeover switch circuit 7 can be composed of a plurality of dip switches. The operation knob, the operation dial, or the DIP switch of the changeover switch circuit 7 is operated and set in a selected state in advance, and once set, it is not normally changed thereafter.

The fixed electrode 7a of the changeover 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 are 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 and 8c are commonly connected and connected to one terminal of the relay coil 6a. These diodes 8a, 8b, 8c are provided so that an alarm signal which is switched by the changeover switch circuit 7 and drives the red light emitting diode, the green light emitting diode or the blue light emitting diode does not go around to the 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 which is switched by a changeover switch circuit 7 provided outside the alarm display device and is supplied from the outside. The relay coil 6a is excited by the generated alarm signal to open or close the relay contact 6b, and the state is used as a contact signal for 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.

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

[0043]

As described above, according to the first aspect of the present invention, a plurality of luminous bodies each emitting a different luminous color are provided, and the alarm signal for driving the luminous bodies having the same luminous color is manually supplied. Since it is configured to include a manual changeover switch circuit that is switched by, there is an effect that an alarm display device that can easily change the display color can be obtained.

According to the second aspect of the present invention, a plurality of light-emitting bodies arranged in a row in the horizontal direction and having the same emission color are arranged such that the emission colors are different in the vertical direction. Therefore, it is possible to obtain an alarm display device in which the display color can be easily changed.

According to the third aspect of the present invention, an alarm signal supplied from the outside for driving the light emitters of the same emission color which are switched by the manual changeover switch circuit is detected, and a signal corresponding to the detected alarm signal is detected. Since the alarm signal detection circuit for outputting is provided, the display color can be easily changed, and an alarm display device capable of outputting a signal according to the alarm signal supplied from the outside to the outside can be obtained.

According to the invention of claim 4, an alarm signal supplied from the outside for driving the light emitters of the same emission color which are switched by the manual changeover switch circuit is detected, and the contact signal according to the detected alarm signal. Since the alarm signal detection circuit is equipped with a relay circuit that outputs a signal or a contactless logic relay circuit that outputs a contactless signal, the display color can be easily changed and a signal corresponding to the alarm signal supplied from the outside. There is an effect that an alarm display device that can output the alarm can be obtained.

According to the fifth aspect of the present invention, the changeover switch circuit provided externally switches the supply of the alarm signal for driving the light emitters for each light emitter of the same emission color, and the changeover switch circuit. It is configured to include an alarm signal detection circuit that detects an alarm signal supplied from the outside that drives the light-emitting body of the same emission color and is switched by the above, and outputs a signal according to the detected alarm signal. There is an effect that it is possible to obtain an alarm display device in which a color can be easily changed and a signal according to an alarm signal supplied from the outside can be output to the outside.

According to the sixth aspect of the present invention, a plurality of light-emitting bodies arranged in a row in the horizontal direction and having the same emission color are arranged so that the emission colors are different in the vertical direction. And a configuration in which the supply of an alarm signal for driving the light-emitting body is switched for each light-emitting body of the same emission color by a changeover switch circuit provided in Since it is configured to include an alarm signal detection circuit that detects an alarm signal supplied from the outside and outputs a signal corresponding to the detected alarm signal, it is possible to easily change the display color and supply from the outside. There is an effect that an alarm display device capable of outputting a signal according to the alarm signal to the outside can be obtained.

According to a seventh aspect of the present invention, the supply of the alarm signal for driving the light-emitting body for each light-emitting body of the same emission color can be switched by an external change-over switch circuit, and the change-over switch circuit. A relay circuit that outputs a contact signal corresponding to the detected alarm signal or a contactless logic relay that outputs a contactless signal by detecting an alarm signal supplied from the outside that drives a light-emitting body of the same emission color that is switched by Since it is configured to include an alarm signal detection circuit having a circuit, it is possible to easily change the display color and obtain an alarm display device that can output a signal according to an alarm signal supplied from the outside to the outside. .

[Brief description of drawings]

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

FIG. 2 is a circuit diagram showing a configuration of an alarm display device according to an 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 an 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 emitting body), 1b Green light emitting diode (light emitting body), 1c Blue light emitting diode (light emitting body), 4 Alarm display device, 5 Manual changeover switch circuit, 6a Relay coil (Alarm signal detection circuit, relay circuit) , 6b relay contact (alarm signal detection circuit, relay circuit), 6f, 6h resistance (non-contact logic relay circuit), 6g transistor (non-contact logic relay circuit), 7 changeover switch circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Nagamoto 1-2-1, Wadazakicho, Hyogo-ku, Kobe Sanritsu Electric Co., Ltd. Control Mfg. Co., Ltd. (72) Maki Oki Wadazaki-cho, Hyogo-ku, Kobe 1-2, Sanryo Denki Co., Ltd.

Claims (7)

[Claims] 1. An alarm display device having a light-emitting body that emits light in response to an alarm signal and displays the alarm signal in a light-emitting color, wherein the light-emitting body comprises a plurality of light-emitting bodies that emit light in different emission colors. An alarm display device comprising a manual changeover switch circuit for manually switching the supply of an alarm signal for driving each light emitter of the same color. 2. The alarm display device according to claim 1, wherein a plurality of light emitters arranged in a row in a horizontal direction and having the same light emission color are arranged so as to change a light emission color in a vertical direction. 3. An alarm signal for detecting an alarm signal supplied from the outside for driving a light-emitting body of the same emission color to be switched by the manual change-over switch circuit, and outputting a signal corresponding to the detected alarm signal. The alarm display device according to claim 1 or 2, further comprising a detection circuit. 4. The alarm display device according to claim 3, wherein the alarm signal detection circuit has a relay circuit that outputs a contact signal or a contactless logic relay circuit that outputs a contactless signal. 5. An alarm display device having a plurality of light emitters which emit light in response to an alarm signal and display the alarm signal in an emission color, wherein the light emitters are switched by an external changeover switch circuit. It emits light for each light-emitting body of the same emission color according to a signal, and detects the alarm signal supplied from the outside that is switched by the changeover switch circuit and drives the light-emitting body of the same emission color, and outputs the detected alarm signal. An alarm display device comprising an alarm signal detection circuit for outputting a corresponding signal. 6. The light-emitting body is configured by arranging a plurality of light-emitting bodies arranged in a row in the horizontal direction and having the same light-emitting color so as to change the emission color in the vertical direction. The alarm display device described. 7. The alarm according to claim 5, wherein the alarm signal detection circuit has a relay circuit for outputting a contact signal or a non-contact logic relay circuit for outputting a non-contact signal. Display device.