JPH021669Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an outdoor indicator for alarm equipment that receives and displays transfer signals from alarm devices for fire, gas leak, etc. in an apartment complex.

In recent years, alarm equipment having the system configuration shown in FIG. 1, for example, has been considered for centrally monitoring fires and gas leaks in housing complexes such as condominiums and public corporations.

In Fig. 1, 1 is a centralized monitoring panel installed in the center, and the centralized monitoring panel 1 includes residential units A1, A2,
...An external display device 2a, 2b, ...2n having a relay function is connected to the signal line for each dwelling unit A.
1 to An are in-house control panels 5a, 5b,...5 to which the fire detector 3 and gas leak detector 4 are connected by signal lines.
n is installed, and when an abnormality such as a fire or gas leak is detected, the in-house control panel 5a to 5n issues an alarm to the inside of the dwelling unit, and also outputs a transfer signal to the external indicators 2a to 2n. The system receives transfer outputs such as fire or gas leaks and relays them to the central centralized monitoring panel 1.

By the way, the outdoor display devices 2a to 2n provided for each of the residential units A1 to An facilitate the signal line connection with the central monitoring panel 1, and the in-house control panels 5a to 5n.
It is installed near the entrance door outside the residence so that the status of the fire detector 3 can be known from the outside. Detection signals such as a fire failure due to a disconnection of a signal line, a failure of the gas leak detector 4 or a gas failure due to a disconnection of a signal line, and power-down of the in-house management panels 5a to 5n are also transferred.

Therefore, the residential outdoor display device 2a installed outside the residential unit
In-house control panel 5a~ by lamp display at 2n
At least 5 indicator lights are required to know the status of 5n.

However, when a large number of indicator lights with different display contents are provided on the residential outdoor display units 2a to 2n, it is difficult to understand the display contents even if the display colors are color-coded, and the cost increases as the number of indicator lights increases. There were problems in that it caused an increase in the price and was also inferior in terms of design.

The present invention was developed in view of the above, and includes only a power monitoring light in addition to the fire indicator light and gas leak indicator light, and the power monitoring light can indicate power down, fire failure, and gas failure. To provide an outdoor indicator for alarm equipment that is inexpensive in cost and excellent in design.

To achieve this objective, the present invention is designed to be used as an external indicator for alarm equipment that receives and displays transfer signals from in-house alarm devices for fires, gas leaks, etc. installed in each dwelling unit. A fire indicator light is connected to a fire signal line, a gas leak signal line, and a pair of power lines, and turns on when a fire detection signal is received from the fire signal line, and when a gas leak detection signal is received from the gas leak signal line. It has a gas leak indicator light that lights up, and further includes a switch circuit that conducts when a normal fire signal is received and a switch circuit that conducts when a normal gas leak signal is received between a pair of power lines from an alarm panel in the dwelling. Connect each with the power monitoring light in series,
In the event of a fire or gas leak failure, the power monitoring light is turned off by cutting off the corresponding switch circuit, and in the event of a power outage, the power monitoring light is turned off by cutting off the power supply.

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 2 is a circuit diagram showing an embodiment of the present invention.

First, to explain the configuration, a pair of power supply lines 11, 11', a fire signal line 12, and a gas leakage signal line 13 are connected to the residential outdoor indicator 10 of the present invention from the residential alarm panel. The signal voltage of the fire signal 12 is 6 volts under normal monitoring conditions, 12 volts when a fire is detected, and zero volts when a fault is detected in which the sensor signal line is cut off. The gas leak signal line 13 also becomes 6 volts in a normal monitoring state, 12 volts when a gas leak is detected, and zero volts when a failure is detected due to a failure of the gas leak detector or a disconnection of the signal line.

Next, the circuit section that relays and outputs fire and fire failure based on the signal voltage of the fire signal line 12 will be explained. The fire signal line 12 is connected to the base of the transistor Q1 via the resistor R1 and the Zener diode ZD1, and the Zener diode ZD1 has a Zener voltage that is conductive at the fire signal voltage of 12 volts, and when the Zener diode ZD1 is conductive, the transistor Q1 is turned on by the base bias provided by the resistor R2. A fire indicator light 14 and a light emitting element LD1 which is driven to emit light upon fire detection are connected in series to the collector of the transistor Q1 via a resistor R3, and when the transistor Q1 is turned on due to fire detection, the fire indicator light 14 is lit and the light emitting element LD1 The fire signal can be relayed to the receiver by driving the light emission. On the other hand, the fire signal line 12 is connected to the base of a transistor Q2 via a voltage dividing circuit made up of resistors R4 and R5, and a light emitting element LD2 is connected in series to the collector of the transistor Q2 via a diode D1 and a resistor R6 to monitor normal operation. In this state, the signal voltage of the fire signal line 12 is 6 volts, so this normal signal voltage turns on the transistor Q2 and drives the light emitting element LD2 to emit light, and based on this light emission output, the central central monitoring board The relay output indicates that the monitor is in a normal monitoring state. On the other hand, if the fire signal line 12 becomes zero volts due to fire fault detection, the light emitting drive of the light emitting element LD2 will be stopped by turning off the transistor Q2. It also has a function to relay and output fire failures to the panel.

Next, we will explain the circuit that relays and outputs gas leaks and gas faults based on the signal voltage of the gas leak signal line 13. First, the gas leak signal line 13 is connected to the transistor Q via the resistor R6 and the Zener diode ZD2.
Connected to the base of 3, Zener diode ZD2
has a Zener voltage that is turned on at the gas leakage signal voltage of 12 volts on the gas leakage signal line 13, and the transistor Q3 is turned on by the base bias of the resistor R7 due to the conduction of the Zener diode ZD2.
A gas leak indicator lamp 15 and a light emitting element LD3 are connected in series to the collector of the transistor Q3 via a resistor R8, and when the transistor Q3 is turned on when a gas leak is detected, the gas leak indicator lamp 15 is turned on and the light emitting element LD3 is driven to emit light. Gas leak detection is relayed to a central monitoring board.
Further, the gas leak signal line 13 is connected to the base of a transistor Q4 via a voltage dividing circuit made up of resistors R9 and R10, and a light emitting element LD4 is connected in series to the collector of the transistor Q4 via a resistor R11.
Since the signal voltage of the gas leak signal line 13 is 6 volts in a normal gas leak state, the transistor Q4 is turned on at this normal signal voltage and drives the light emitting element LD4 to emit light. In the event of a gas leakage failure due to a line break, the signal voltage of the gas leakage signal line 13 becomes zero volts, which turns off the transistor Q4 and turns off the light emitting element LD4.
By stopping the light emission, gas leak failure can be relayed to the central monitoring system.

Further, a power monitoring light 16 is connected to the collector of the transistor Q4 via a diode D2 and a resistor R12, and a transistor Q5 is connected in series following the power monitoring light 16.
A voltage dividing circuit consisting of resistors R13 and R14 is connected to the base of the voltage dividing circuit, and the negative side of the resistor R14 in this voltage dividing circuit is connected to the collector of a transistor Q2 which is turned on at the normal fire signal voltage.

That is, the transistor Q5 has the fire normal signal voltage 6.
The transistor Q4 constitutes a switch circuit that becomes conductive when the transistor Q2 is turned on by a voltage of 6 volts, and the transistor Q4 constitutes a switch circuit that becomes conductive when the gas leakage normal signal voltage is 6 volts. A switch circuit consisting of transistor Q5 and a power supply monitoring light 16 are further added to transistor Q4.
The circuit has a circuit configuration in which switch circuits are connected in series.

Furthermore, in order to monitor the power supply to the display device 10 outside the dwelling via the power lines 11 and 11' from the alarm panel inside the dwelling, a light emitting element LD5 is connected between the power lines 11 and 11' via a resistor R15, and the power is supplied. When the light emitting element LD5 is cut off, the light emitting drive of the light emitting element LD5 is stopped, and a power down signal is relayed and output to the central central monitoring board. In addition, each of the light emitting elements LD1 to LD5, which are provided in response to a fire, fire failure, gas leak, gas leak failure, or power down, uses a photocoupler having a combination of light receiving elements PD1 to PD5 shown on the right side. Display device outside the dwelling unit 1 with power isolation between the inside of the dwelling unit and the center side.
The transfer signal received at 0 is relayed and output.
Turning off PD2 indicates a fire failure, turning on photodetector PD3 indicates a gas leak, turning off photodetector PD4 indicates a gas leakage, and turning off photodetector PD5 indicates a power down via the signal line to the central central monitoring device. I am trying to relay output.

FIG. 3 is an explanatory diagram showing an embodiment of the residential outdoor display device of the present invention having the circuit configuration shown in FIG. The housing 18 is equipped with an interphone switch 19, a microphone 20, and an interphone slave unit with a built-in speaker 21, and furthermore, a fire indicator light 14 and a gas leak indicator light are installed on the top to notify the monitoring status by the alarm panel in the residence. 15, and power monitoring light 1
6 are provided, and in order to easily identify the displayed contents, these indicator lights have display colors such as red for the fire indicator light 14, yellow for the gas leak indicator light 15, and green for the power monitoring light 16. is applied.

Next, the operation of the outdoor display device of the present invention shown in FIG. 2 will be explained.

First, when fire and gas leakage are being monitored normally and power is being supplied normally, the signal voltage of the fire signal line 12 and gas leakage signal line 13 is at 6 volts. Signal line 1
The transistor Q2 is turned on by the signal voltage of 6 volts and drives the light emitting element LD2 to emit light, and when the transistor Q2 is turned on, a base bias circuit of the transistor Q5 consisting of resistors R13 and R14 is formed, and the transistor Q5 is turned on. on the other hand,
The transistor Q4 is also turned on by the normal signal voltage of 6 volts on the gas leak signal line 13, driving the light emitting element LD4 to emit light, and at this time, the transistor Q5 is also turned on by the power supply voltage on the power supply lines 11 and 11'. , the transistor Q5, the power monitoring light 16, and the transistor Q4 form a series circuit, and the power monitoring light 16 is turned on.

Next, if the signal voltage of the fire signal line 12 becomes zero volts due to fault detection due to a disconnection of the signal line to the fire detector, the transistor Q2 is turned off and the transistor Q5 is also turned off, and the power monitoring light 16 is turned off, causing a fire hazard. Notify that this has occurred. Also, if the signal voltage of the gas leak signal line 13 becomes zero volts as a fault signal voltage due to a failure of the gas leak detector or a disconnection of the signal line,
When the transistor Q4 is turned off, the power monitoring light 16 is turned off to notify of a gas leak failure.

Further, when the power supply from the alarm panel in the dwelling is cut off, the transistors Q4 and Q5 are also turned off, and the power monitoring light 16 is turned off to notify that the power is down.

Next, regarding the signal voltage of 12 volts on the fire signal line 12 at the time of fire detection, use the Zener diode ZD
1 turns on, the transistor Q1 turns on, lights up the fire indicator lamp 14, and drives the light emitting element LD1 to emit light, thereby displaying a fire on the outside display and relaying a fire signal to the central central monitoring device. Furthermore, when a gas leak signal voltage of 12 volts is applied to the gas leak signal line 13 at the time of gas leak detection, the transistor Q3 is turned on by the conduction of the Zener diode ZD2, and the gas leak indicator lamp 15 is turned on, and the light emitting element LD3 is driven to emit light. A gas leak alarm is displayed on the display outside the residence, and the gas leak detection is relayed and output to the central central monitoring device. Note that the transistors Q4 and Q5 are on when either a fire or a gas leak is detected, so the power monitoring light 16 remains lit.

As is clear from this explanation of the operation, the power monitoring light 16 of the present invention has a function of turning off when any of fire failure, gas leakage failure, and power failure occurs, and from this display state, it is immediately It is not possible to determine which failure has occurred. However, the fire indicator light 14 and the gas leak indicator light 15 shown in FIG. When the fire indicator light 14 is turned off,
Fire indicator light 14 was set in a fire test by operating a switch.
If it lights up, you will know that there is a gas leak problem.
In addition, if the gas leak indicator light 15 lights up in a gas leak test by operating the switch of the gas leak indicator light 15, it is known that there is a fire failure, and furthermore, the fire indicator light 14 is turned on.
If the display does not light up even if you switch any of the gas leak indicator lamps 15 and 15, it is known that the power is down, and a single power monitoring lamp 16 indicates fire failure, gas leak failure, and power down. Even if the fault is connected to the fire test and gas leak test, it is possible to easily know which type of failure is occurring on the outdoor display.

In addition, as shown in Figure 3, the number of indicator lights installed on the display housing of the residential outdoor indicator is limited to three indicator lights for fire, gas leak, and power supply monitoring, so these indicator lights are color-coded. By doing so, you can easily and easily know the status of the alarm panel inside the residence, and since only three indicator lights are required, it is possible to create an external display with a well-balanced design. Since the number of indicator lights is small, the device configuration and circuit configuration are simplified.

Next, to explain the effect of this invention, a switch circuit that conducts when a fire normal signal is received between a pair of power lines from the alarm panel in the dwelling, a switch circuit that conducts when a gas leak normal signal is received, and a power monitoring light are connected in series. By connecting, a single power monitoring light can be used to indicate faults for three different fault detections: fire fault, gas leak fault, and power outage.
The circuit configuration for fault indication can be easily configured, and since it is only necessary to provide a power monitoring light in addition to the fire indicator light and gas leak indicator light, the display contents are easy to understand, and each indicator light can be color-coded. As a result, it is possible to accurately grasp the monitoring status of the alarm panel inside the dwelling unit by looking at the display on the outside display device installed outside the dwelling unit.

Furthermore, since the number of indicator lights installed on the residential outdoor display device is only three, the configuration of the display circuit can be simplified, and by integrating with the intercom handset, it is possible to realize a residential outdoor display device with excellent design. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the system configuration of alarm equipment for apartment complexes, Fig. 2 is a circuit diagram showing an embodiment of the invention, and Fig. 3 shows the external appearance of the outdoor indicator of the invention. It is an explanatory diagram. 1... Central monitoring panel, 2a, 2b, 2n... Indicator outside the dwelling, 3... Fire detector, 4... Gas leak detector, 5a, 5b, 5n... Alarm panel inside the dwelling, 10
...Outdoor display, 11, 11'...Power line, 1
2...Fire signal line, 13...Gas leak signal line, 1
4...Fire indicator light, 15...Gas leak indicator light, 1
6...Power monitoring light, 18...Display housing, 19...
...Interphone switch, 20...Microphone, 2
1...Speaker, LD1 to LD5...Light emitting element,
PD1~PD5...Photodetector.

Claims (1)

[Scope of Claim for Utility Model Registration] It is connected to the in-house alarm device installed in each dwelling unit via a fire signal line, a gas leak signal line, and a pair of power supply lines, and from the fire signal line, a normal fire signal is sent when normal. When a fire is detected, a fire detection signal is received, and when a failure related to fire monitoring occurs, a fire failure detection signal is received as a transfer signal, and from the gas leak signal line, a gas leak normal signal is received when a gas leak is normal, and a gas leak normal signal is received when a gas leak occurs. In an outdoor indicator of an alarm system that receives a gas leak detection signal and further a gas leak failure detection signal as a transfer signal when a failure related to gas leak monitoring occurs, upon reception of the fire detection signal from the fire signal line. It has a fire indicator light that lights up and a gas leak indicator light that lights up upon reception of the gas leak detection signal from the gas leak signal line, and further includes a fire normal signal from the fire signal line between the pair of power lines. The first switch circuit becomes conductive upon receiving the fire failure signal and becomes non-conductive upon reception of the gas leakage signal from the gas leakage signal line, and becomes conductive upon reception of the gas leakage normal signal from the gas leakage signal line and becomes nonconductive upon reception of the gas leakage failure signal. The second switch circuit becomes conductive, and lights up to indicate that the normal fire and gas leak signal is being received and the power is normally available, and the power is cut off and the fire fault signal is received or the gas leak fault signal is received. connected in series with a power supply monitoring light equipped with a fault display function that turns off any state of reception, and the outdoor display device is built into the same housing as an intercom handset equipped with a microphone and speaker. An outdoor indicator for alarm equipment featuring: