JPH0366715B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a building management device that allows information on each room in a building to be reported to a monitoring room using telephone cables in the building without adversely affecting the telephone exchange. be.

BACKGROUND ART Recently, in building management, electrical monitoring is being used instead of patrolling by security personnel. In this method, necessary sensors such as smoke sensors, temperature sensors, gas sensors, etc. are installed in each room in a building, and when an accident occurs, the sensor corresponding to this accident is activated and a signal specific to that sensor ( The sensor generates a specific voltage level, specific frequency, etc., and reports information from the sensor to a central monitoring board through a dedicated line.

In this case, dedicated lines are used to communicate between each room and the central monitoring panel, which not only requires high costs to install, but even if it is easy to install in the case of new installations, it is difficult to install additional lines. There were problems such as difficult construction and poor appearance.

This invention was developed in consideration of the above points, and by using a telephone line, it is unnecessary to install a dedicated line, and moreover, it does not adversely affect the telephone exchange. The invention will be explained below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. In this figure, denotes a telephone office, and denotes a building. Although there are many rooms 10 in the building, only a certain number of rooms are shown here. 20 is a monitoring room. A telephone exchange 1 of a telephone office is connected to a telephone 6 by a telephone cable 2 through a terminal board 3 in a building, a telephone cable 4, and a terminal board 5 in a room 10. The above is a normal telephone line.

Now, in this invention, a carrier 11 is installed inside the chamber 10. The carrier 11 includes a sensor S, an abnormal signal generator OSC that generates a low-level abnormal signal (for example, −40 dB or less) at an inaudible frequency (for example, 20 KHz or higher), a resistor R ₁ in series, and a DC blocking capacitor C. It consists of ₁ . In this embodiment, only one sensor S and one abnormal signal generator OSC are shown, but the sensor S includes a smoke sensor. Temperature sensor. Gas sensor. Thief intrusion sensor. Various types of water leak sensors are used, and abnormal signal generators OSC with different oscillation frequencies are prepared accordingly (the oscillation frequency of one abnormal signal generator OSC may be changed). , when an abnormality occurs, the sensor S corresponding to the abnormality is activated, and then the abnormality signal generator OSC is activated.

The carrier 11 configured as described above is connected to the terminal board 5 via a lock switch DSW that is turned on in conjunction with the locking of the door of the room 10. This means that the telephone 6 and the carrier 11 are connected in parallel.

Next, the central monitoring panel 21 provided in the monitoring room 20 will be explained. C ₂ is a DC blocking capacitor,
_R2 is a resistor, A is an amplifier that amplifies low-level abnormal signals, REC is a receiver that determines the receiving frequency,
D is a display device, for example, a light emitting diode or the like is used. In the embodiment of FIG. 1, since there is only one chamber 10, there is also one amplifier A, but as the number of chambers 10 increases, the number of amplifiers A increases accordingly. T is a terminal plate. The central monitoring board 21 is connected to the terminal board 3 by a cable 22.

Next, the operation will be explained.

When someone is in the room 10, the door is not locked, so the lock switch DSW is turned off as shown, and the carrier 11 is not connected to the telephone 6.
is completely separated from. Therefore, even if the sensor S should be activated due to some kind of accident, no notification will be sent to the central monitoring board 21 (although appropriate measures can be taken since there is someone in the room).

Next, when I lock the door of room 10 to go out,
In conjunction with this, the lock switch DSW is turned on.
Thus, the telephone 6 and the carrier 11 are connected in parallel. In the unlikely event that an accident occurs, the sensor S is activated, thereby generating a specific abnormal signal from the abnormal signal generator OSC, which is sent to the central monitoring board 21. In the central monitoring board 21, the abnormal signal sent is amplified to a specified level by amplifier A, and the receiver REC
In addition to that, the frequency is determined, and this is the carrier 11
If it is determined that the item is from , the display device D is activated to display the information.

In the above embodiment, even if the locking switch DSW is activated and the carrier 11 is connected in parallel to the telephone 6, the direct current is blocked by the direct current blocking capacitor _C1 , so there is no adverse effect on the switching operation of the telephone exchange 1. will not be given. Furthermore, although the central monitoring board 21 is always connected to the terminal board 3, it has a high impedance against audio and ringing (16Hz), and direct current is blocked by the DC blocking capacitor _C2 , so the central monitoring board 21 This does not adversely affect the switching operation of the telephone exchange 1.

FIG. 2 shows another embodiment of this invention,
This figure shows the configuration in the case of n rooms 10a to 10n. To simplify the illustration, the telephone cables 2 and 4 or the circuit, etc., which were shown as two in FIG. 1, are shown as one. In FIG. 2, a carrier 11 is installed in each of the chambers 10a to 10n, and is connected to the terminal board 5 via the respective lock switch DSW.
The oscillation frequency of the abnormality signal generator OSC of each carrier 11 is set to be different, so that by determining the frequency, it is possible to know from which room the notification is coming.

Further, on the central monitoring board 21 side, amplifiers Aa to An are provided corresponding to the n rooms 10a to 10n, and their outputs are input to the receiver REC to discriminate the frequency. In the same way, the display has n pieces Da to Dn, and the receiver
Activate the display corresponding to the frequency determined by REC, that is, the display corresponding to the room from which the signal was transmitted.

Figure 3 shows an example of a locking switch DSW.

In FIG. 3, 31 is a door, and a fixing member 32
The latch bolt 3 shown by the dotted line is rotatably supported by a hinge 33 at the
5 is retracted, the engagement with the fixing member 36 is released, and the door can be opened. Also, when the fixing member 36 and the door 31 are aligned when closing the door 31, the latch bolt 35 is protruded by the spring force inside the door 31. If the latch bolt 35 engages with the recess 37 of the fixing member 36 and the knob 34 is not rotated again, the door 3 will close.
1 will not open.

Next, when a key (not shown) is inserted into the keyhole 38 provided in the door 31 and rotated, the dead bolt 3 shown by the dotted line will open.
9 moves forward in the direction of the arrow and engages with the recess 40 provided in the fixing member 36, completing the locking. In this invention, a permanent magnet M is embedded in the dead bolt 39, and a locking switch DSW consisting of a reed switch is attached to the fixed member 36 side. Therefore, when the dead bolt 39 is not locked, the lock switch DSW is off, but when the dead bolt 39 moves forward due to locking, the lock switch DSW, which is a reed switch, enters the magnetic field of the permanent magnet M and is turned on. Lock it like this. Turn on the lock switch DSW in conjunction with unlocking.
It can be turned off.

In addition, in the embodiment shown in Fig. 1 above, the lock switch is
Although two pieces of DSW were used to cut the pieces into both sides, it is also possible to cut them into one piece. Further, the number of sensors S can be increased as necessary. Further, although the abnormal signal generator OSC has been shown to perform discrimination based on frequency, it can also change the DC level or use a digital signal.

Next, still another embodiment of the present invention is shown in FIG. In this embodiment, the carrier is normally completely disconnected from the telephone line. Similarly to the embodiment shown in FIG. 1, FIG. 4 shows a case in which there is only one chamber 10.

In Fig. 4, the same symbols as in Figs. 1 and 2 indicate the same things, J is jack, TIMA,
TIMB, TIMC are timers, DS, FS, FR, CHA,
CHB is a relay, and the contacts of each relay are represented by lowercase letters. For example, the contact of relay DS is ds ₀ ,
They are shown as ds ₁ , ds ₂ , ds ₃ , and so on. Reference numeral 12 denotes an information sorting circuit which, when receiving signals from sensors S ₁ and S ₂ , outputs a voltage at a level corresponding to the alarm.
For example, in the case of a gas leak, sensor S ₁ is activated,
A DC voltage of 10V is generated from the information separation circuit 12,
In case of fire, sensor S ₂ is activated and a DC voltage of 5V is generated. FS・OSC, FR・OSC are set oscillators, reset oscillators, _A0 is an amplifier, and TR is a transformer.

Also, FF is a flip-flop, VDET is a voltage discriminator, Da ₁ to _{Da 3} are indicators, E is a power supply, ZD is a Zener diode, PTC is a photocoupler, C ₃ is a capacitor, R ₃ is a resistor, and D _b is an indicator, and BZ is a buzzer. Reference numerals for other parts that do not require particular explanation have been omitted.

Next, the embodiment shown in FIG. 4 will be explained using the timing chart shown in FIG.

When you go out and lock the door from the outside, the lock switch DSW will be activated.
is closed, the relay DS of the carrier 11 is activated, and the telephone set 6 is disconnected from the telephone cable 4 at its contacts ds ₀ and ds ₁ . Also, operate timer TIMA with contact ds ₂ ,
Relay FS operates for a certain period of time (approximately 4 seconds), and contact fs _{is 0.}
The set signal (for example, 20 KHz, -40 dB) of the set oscillator FS/OSC is sent to the central monitoring board 21 through the set oscillator FS/OSC.

On the central monitoring board 21 side, this signal is amplified by amplifier A, received by receiver REC, and sent to flip-flop.
Set FF, operate relay CHA, and disconnect from telephone exchange 1 side. At this point, both ends of the telephone cable 4 of the telephone line are disconnected. The disconnected telephone cable 4 on the telephone exchange 1 side is
It is equipped with a ringing detection circuit that includes a photocoupler PTC, buzzer BZ, etc., and can respond to incoming calls. The separated telephone cable 4 can be used in various ways as a pair of wires.

Next, when you open the door to enter the room, the lock switch will be activated.
DSW opens, contact ds ₂ returns as shown, and timer TIMB activates relay FR for a certain period of time (approximately 4 seconds).
operates and resets the oscillator FR・OSC through contact fr ₂
A reset signal (for example, 25 KHz, -40 dB) is sent to the central monitoring board 21 side. The completed telephone line is returned to the telephone set 6.

When the central monitoring board 21 side receives this signal,
The flip-flop FF is restored, the relay CHA is restored, the telephone line is restored, and the telephone 6 is connected to the telephone exchange 1.

In FIG. 5, t ₁ is the locking time, t ₂ is the unlocking time, and T _u indicates the period during which the telephone cable 4 is used as an information line.

As explained in detail above, the present invention provides a conveyor device that is installed in each room in a building and includes a sensor that operates when an abnormality occurs, an abnormal signal generator that generates an abnormal signal when the sensor operates, and a DC blocking condenser. is connected in parallel with the telephone set via a lock switch in that room, while a DC blocking capacitor, an amplifier, a receiver for determining the output of this amplifier, and a display for displaying the output of this receiver are installed in the monitoring room. A central monitoring board consisting of Yes, and construction costs can be significantly reduced.

Furthermore, since the carrier and the central monitoring board are connected to the telephone cable via a DC blocking capacitor, there is no adverse effect on the operation of the telephone exchange.

Additionally, since the carrier is connected to the telephone cable via a lock switch on the door, the carrier is disconnected when a person is in the room, so even if the carrier malfunctions, Does not interfere with telephone exchange.

Thus, the present invention has the excellent advantage that the building management device can be applied to existing buildings without adversely affecting telephone exchanges.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram showing the configuration of one embodiment of the invention, Fig. 2 is a circuit diagram showing another embodiment, Fig. 3 is a diagram for explaining a lock switch, and Fig. 4 is a circuit diagram of the invention. FIG. 5 is a timing chart for explaining the operation of the embodiment of FIG. 4. In the figure, is a telephone office, is a building, 1 is a telephone exchange, 2 and 4 are telephone cables, 3 and 5 are terminal boards, 6
is a telephone, 10 is a room, 11 is a carrier, 12 is an information separation circuit, 20 is a monitoring room, 21 is a central monitoring board, 2
2 is a cable, OSC is an abnormal signal generator, DSW is a lock switch, C ₁ and C ₂ are DC blocking capacitors,
A is an amplifier, REC is a receiver, D is a display, and S is a sensor.

Claims (1)

[Claims] 1. Telephone cables are laid from the telephone exchange to each room in the building, and telephone lines connected to the telephone cables are installed in each room; there is a sensor that activates when an abnormality occurs, and an abnormal signal is generated by the activation of this sensor. A carrier consisting of an abnormal signal generator that generates an error signal and a DC blocking capacitor is connected in parallel to the telephone set for each room through a lock switch that is turned on in conjunction with the locking of the door of that room. On the other hand, a central system consisting of an amplifier connected to each of the telephone cables in each room via a DC blocking capacitor, a receiver for determining the output of this amplifier, and a display for displaying the output of this receiver. A building management device characterized by having a monitoring panel installed in a monitoring room.