JPH0351994A - home security equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention uses smoke detectors and other detectors to centrally control the occurrence of fires in residential units in the vicinity of the installation atmosphere or in the manager's room. This invention relates to a home security device that notifies a location.

Conventional technology In recent years, the introduction of home electronics systems has become widespread in homes with the aim of improving safety and comfort. One such system is home security, which detects abnormalities in specific objects and notifies a control center. There is a device. This type of device is particularly popular in collective housing such as so-called condominiums.

By the way, in the case of apartment complexes, a certain scale, for example, 1
The Fire Service Act applies to buildings above the first floor, and the installation of automatic fire alarms is mandatory.

In addition, the response to the Fire Service Law for apartment complexes is progressing rapidly, and in recent years, fire protection equipment (emergency alarm equipment, (extinguishing equipment, sprinkler equipment, etc.) have been applied, making it possible to reduce equipment costs. The conditions are as follows.

(1> The main structure must be fireproof.

(2) All dwelling units must be of two-way evacuation type.

(3) All residential units must be equipped with automatic fire alarms (that is, fall under home security and have a P-type 3rd grade receiver or a GP-type 3rd grade receiver).

Next, an outline of an example of a home security device corresponding to the above (3) will be explained using FIG. 2.

In Figure 2, automatic fire alarm 1 is an automatic fire alarm (P-type 1st class receiver) installed in a manager's room of an apartment complex, etc.
, and an automatic fire alarm line 2 is connected thereto. This automatic fire alarm line 2 alerts a certain area of the building.
For example, each floor corresponds to one area. The number of lines increases as L+−Ln depending on the size of the building. 3 is one house constituting the apartment complex, and 4 is an automatic fire alarm for a dwelling unit installed in the house 3. Reference numeral 5 has an intercom function and is an outdoor display connected to the automatic fire alarm 4 for the residential unit, 6 is a heat detector connected to the automatic fire alarm 4 for the residential unit, and 7 is connected to the heat detector 6. It's a smoke detector. 8 is a sensor that detects notification contents other than fire alarms, and 9 is a terminator that is connected to the end of the automatic fire alarm line 2 and detects disconnection of the line.

Next, the operation of the home security device with the above configuration will be explained.

Automatic fire alarm installed in manager's room, center, etc. 1
The system centrally manages the automatic fire alarms 4 for residential units installed in all rooms on a certain floor or above, in this example, the 11th floor or above, and if this automatic fire alarm 4 for residential units is activated, an automatic fire alarm will be activated. The alarm area is displayed for each alarm line 2 and an alarm sound is emitted at the same time.

The manager who confirmed this display and alarm sound rushed to the installation location of the outdoor indicator 5 in the area where the alarm was issued, and confirmed that the alarm was being emitted from the outdoor indicator 5 of the residence where the heat detector 6 or smoke detector 7 had been activated. Identify the residence where the alarm occurred based on the alarm sound and alarm display, and carry out firefighting duties.

Furthermore, under the current law, it is permissible to use a self-contained system for each dwelling unit on the 10th floor and below, so there is no need to notify the manager's office of the fire when a fire occurs. It will be carried out from 5 onwards.

Although a heat detector 6 and a smoke detector 7 were used as fire detection means, in recent years there has been a trend toward larger households, such as two or three households.

For this reason, as the size of houses increases, early detection of fires has become important to minimize the scale of damage. In contrast, in the past, most of the time, only heat detectors 6 were used, and the fire was often detected after it had spread to a certain extent.In large houses, smoke detectors 7, which can detect fires at an earlier stage, are often used. Installation is essential. Under these circumstances, it is desired to use the heat detector 6 and the smoke detector 7 together.

FIG. 3 is a circuit diagram showing the main parts of the circuit of a conventional home security device.

The automatic fire alarm 1 is provided with an alarm detection relay 10, and a fire recovery switch 11 is connected in series with the alarm detection relay 10. Further, the automatic fire alarm 1 includes an alarm control circuit 1 controlled by an alarm detection relay 10.
2 is provided. On the other hand, the automatic fire alarm system 4 for residential units includes a hot end side of the automatic fire alarm line 2 and a heat detector 6.
A diode 13 is inserted and connected between the two in the forward direction. Further, an alarm detection circuit 14 is provided, and a diode 15 is connected between the output of the alarm detection circuit 14 and the cathode side of the diode 13. Diode 13 and diode 15 function to prevent backflow.

In the configuration shown in FIG. 3, when the heat detector 6 or the smoke detector 7 is activated, the alarm detection circuit 14 of the automatic fire alarm 4 for the dwelling unit is activated due to a change in its internal resistance (or conduction state), and the E92 is applied to the heat sensor 6 and the smoke sensor 7 via the alarm detection circuit 14 and the diode 15, and the automatic fire alarm 1 issues a fire alarm. At this time,
The power source E92 is blocked by the diode 13 and does not flow to the automatic fire alarm 1 side.

At the same time, in the automatic fire alarm 1, since the automatic fire alarm 1 side is in a low resistance state, the normally closed fire recovery switch 1
An operating current flows through the alarm detection relay 10 through the relay 10, and switches the built-in contacts. At this time, the power supply Epl is connected to the alarm detection relay 10 - fire recovery switch 11 - automatic fire alarm line 2 - diode 13 -> heat detector 6 / smoke detector 7
Current flows through the path of one power supply common line.

When the alarm detection relay 10 is activated, the alarm control circuit 12, which uses the contact operation as a detection output, drives the main alarm and performs a series of controls required for automatic fire alarms, such as alarm location display control. Execute.

There are two types of smoke detectors 7: one type that self-holds when it detects smoke and activates, and the other type that detects smoke and activates. There is a type that automatically recovers when it runs out. Self-holding types are generally installed in industrial buildings such as buildings and companies, and are used because they have the advantage of being able to identify the sensor that has triggered the alarm. The automatic fire alarm 1 also has an alarm holding function for disaster prevention inspection and operational necessity.

In the example shown in FIG. 3, the smoke detector 7 is of a self-holding type, so it remains in operation even when the smoke disappears.In order to return to the initial state, the fire recovery switch 11 must be manually opened and The power supply to the device 7 is temporarily cut off.

As a result, the smoke detector 7 is restored and the holding operation of the alarm control circuit 12 is released.

On the other hand, on the 10th floor and below, it is not necessary to connect the automatic fire alarm 4 for residential units and the automatic fire alarm 1 as described above, but the smoke detector 7 connected to the automatic fire alarm 4 for residential units has an automatic recovery type. Encouraged. The reason for this is that when a false alarm occurs at a home where the user is not home, it is not possible to stop the alarm sound from outside.

Furthermore, the automatic fire alarm 1 and the automatic fire alarm 4 for residential units are as follows:
In order to prevent mutual influence, even when power is not supplied from the automatic fire alarm 1 to the automatic fire alarm 4 for residential units, power can be supplied to the smoke detector 7 by the own power supply Ep2. It has become.

Problems to be Solved by the Invention However, in the conventional configuration as described above, the automatic fire alarm for residential units connected to the manager's room and the automatic fire alarm for residential units used on the 10th floor and below are basically the same. However, the smoke detectors used are of two types: a self-holding type and an automatic recovery type, and the power supply methods for each type are different, so a general-purpose automatic fire alarm for residential units was manufactured and installed on all floors. It is not possible to create a commonly used system configuration. In other words, DC 24V power must be supplied to the automatic fire alarm for a residential unit connected to the automatic fire alarm, so that the smoke detector 7 must be able to operate normally even in the event of a power outage. The automatic fire alarm 4 for residential units that is not connected to the automatic fire alarm is configured to use DC 12V as a power source. In addition, for automatic fire alarms for residential units that are connected to automatic fire alarms, when detecting a smoke detector, the power supply
Since power is supplied from l+2, there is a problem in that even if the fire recovery switch of the automatic fire alarm is turned off and the power to the automatic fire alarm line is cut off, the smoke detector cannot be restored.

The present invention solves the conventional problems as described above.
The object is to provide a home security device that allows connection of smoke detectors with different operating types.

Means for Solving the Problems In order to achieve the above object, the present invention provides a power supply unit capable of outputting two types of power supply voltages required by two types of smoke detectors, a self-holding type and an automatic recovery type, and a connection. A connection means for selectively connecting the power supply voltage of the power supply unit according to the operation type of the smoke detector, and a fire recovery signal from the automatic fire alarm equipment that centrally manages fire alarms in the fire alarm target area on a predetermined floor or above. a signal detection means for detecting the smoke detector, and a recovery command given from inside to return the smoke detector to its initial state, or a power supply to the smoke detector is cut off for a certain period of time based on an output signal from the signal detection means. It is equipped with a control section.

action The present invention has the following effects due to the above configuration.

The power supply voltage is set and supplied depending on whether the smoke detector is a self-holding type or an automatic recovery type, and is coordinated with the electric W voltage on the automatic fire alarm equipment side.

In addition, a fire recovery signal is given from automatic fire alarm equipment,
Alternatively, by issuing a recovery command using a fire recovery switch installed in the device itself, the power supply path from the outside to the smoke detector is cut off for a certain period of time, and the power supply to the smoke detector is cut off until the self-retention is released. dripping As a result, it is possible to connect to type smoke detectors without changing the device specifications, and the self-holding type smoke detector can be connected in response to external and internal recovery commands (recovery signals). Recovery can be ensured.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a home security device in one embodiment of the present invention.

In this embodiment, the same parts as in the conventional example shown in FIG. 3 are given the same reference numerals, and the explanation thereof will be omitted, and the different configuration will be explained.

As shown in FIG. 1, a photocoupler 16 is inserted into the human power side of the diode 13, and a relay contact 17 is inserted into the output side. Further, the cathodes of diodes 18 and 19 are connected to the cathode of the diode 13.

Alarm detection circuits 20 and 21 using NPN transistors are connected to the anodes of the diodes 18 and 19, respectively. Diodes 22a and 22°b are connected in the forward direction to the collectors of each transistor of the alarm detection circuits 20 and 21, and their cathodes are commonly connected, and a photocoupler 2
It is connected to the ground line of the automatic fire alarm line 2 via the light emitting part 4.

The emitter of each transistor in the alarm detection circuits 20 and 21 is equipped with a smoke detector power setting section 23 using a switch having two circuit contacts (when one is on, the other is off).
are connected, and their respective power supplies Ep2 (DC24V
), E93 (DC12V) is connected. A power supply Vc is applied to the relay 25 having a built-in relay contact 17 during excitation, and the relay drive circuit 26 drives the relay 25 . Furthermore, the relay drive circuit 26 is driven by a photocoupler.
The main control circuit 27 uses the outputs of the fire recovery switch 28 and the fire recovery switch 28 as human input information. Note that the fire recovery switch 28 can be replaced with an alarm stop switch.

Next, the operation of the embodiment with the above configuration will be explained.

First, a case will be described in which a self-holding smoke detector 7 is used and the automatic fire alarm 1 is connected to the automatic fire alarm 4 for a residential unit. In this case, the smoke detector power setting section 23 sets the power E92 to be applied to the alarm detection circuit 20. The output voltage of the smoke detector power setting section 23 is
When an alarm is issued, the signal is applied to the smoke detector 7 in the same way as the output of the alarm detection circuit 14 in the case of FIG. In this state, when the self-holding smoke detector 7 senses smoke and is activated, the above-mentioned alarm is issued. Even if there is no smoke in the atmosphere in which the smoke detector 7 is installed, it continues to turn on because it is a self-holding type. When the fire recovery switch 11 of the automatic fire alarm 1 is turned off in this state, the current flowing through the automatic fire alarm line 2 is instantaneously cut off, and the light emitted from the photocoupler 16 is instantaneously extinguished. When this extinction is detected by the light receiving section, the main control circuit 27 controls the relay drive circuit 26,
The relay 25 is energized for a certain period of time (for example, 0.2 to 0.5 seconds, which is equivalent to the time required for the smoke detector 7 to finish releasing its self-holding operation), and the relay contact 17 is turned off. By turning off the relay contact 17, the power to the smoke detector 7 is cut off, the self-holding operation is canceled, and the initial state is restored.

At the same time, the self-holding of the alarm control circuit 12 in the automatic fire alarm 1 is released by operating the fire recovery switch 11, and the automatic fire alarm 1 is restored. Furthermore, by operating (turning on) the fire recovery switch 28 of the automatic fire alarm 4 for a dwelling unit, the main control circuit 27 restores the automatic fire alarm 4 for a dwelling unit to its initial state.

In addition, when it is not necessary to connect the automatic fire alarm 4 for a residential unit to the automatic fire alarm 1, the smoke detector power setting section 23 is set so that 693 is connected to the alarm detection circuit 21. The circuit constants of the alarm detection circuits 20 and 2l are selected so that alarm detection is properly performed in accordance with the voltage of the power source E91 whose operating input voltage is supplied from the automatic fire alarm 1 side.

Effects of the Invention As described above, according to the present invention, a power supply unit capable of outputting two types of power supply voltages required by two types of smoke detectors, a self-holding type and an automatic recovery type, and a connected smoke detector are provided. A connection means for selectively connecting the power supply voltage of the power supply unit according to the operation type of the device, and a signal for detecting a fire recovery signal from an automatic fire alarm system that centrally manages fire alarms in areas subject to fire alarms on a predetermined floor or above. a detection means, and a control section that cuts off a power supply path to the smoke detector for a certain period of time based on a recovery command given from inside to return the smoke detector to an initial state or an output signal from the signal detection means. This makes it possible to connect to any type of smoke detector without changing the device specifications, and also enables the self-holding smoke detector to respond to external and internal recovery commands (recovery signals). The recovery can be ensured.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a home security device according to an embodiment of the present invention, FIG. 2 is a block diagram schematically showing an example of a conventional home security device, and FIG. 3 is a main part of the circuit of a conventional home security device. FIG. 1... Automatic fire alarm, 2... Automatic fire alarm line,
4... Automatic fire alarm for residential units, 6... Heat detector, 7
...Smoke detector, 13, 18, 19, 22a, 22'
o...diode, 16, 24... photocoupler,
17... Relay contact, 20, 21... Alarm detection circuit, 23... Smoke detector power setting section, 25... Relay'
26... Relay drive circuit, 27... Main control circuit,
28...Fire recovery switch, E91, E92, ET1
3...Power supply.

Claims (1)

[Claims] a power supply unit capable of outputting two types of power supply voltages required by two types of smoke detectors, self-holding type and automatic recovery type;
Fire recovery from a connection means that selects and connects the power supply voltage of the power supply section according to the operation type of the connected smoke detector, and an automatic fire alarm system that centrally manages fire alarms in areas subject to fire alarms on specified floors and above. The power supply to the smoke detector is cut off for a certain period of time based on a signal detection means for detecting a signal and a recovery command given from inside to return the smoke detector to its initial state, or an output signal from the signal detection means. A home security device with a control unit that allows