JPS6010152Y2 - Control device for multiple emergency equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device that sequentially operates a plurality of starters provided on an electric line by alternately switching the polarity of the electric line to control associated emergency equipment.

Traditionally, fire alarm systems, fire extinguishing equipment,
Multiple starters are installed in correspondence with smoke prevention equipment and emergency equipment such as test equipment, and the equipment is controlled by sequentially operating the starters toward the terminal by alternately switching the polarity of the electric circuit. There are known devices that allow

However, the polarity of the electric circuit is configured so that it can be switched through the operation of emergency equipment, so even if you want to sequentially control equipment in only some compartments, the polarity of the equipment in other compartments that does not require special control can be switched. Since the starter is activated after going through the steps in sequence, there is a drawback that it requires a waiting time.

In view of the above points, the present invention provides a starter for each compartment that sends a signal indicating the control compartment to the receiver, and when controlling only the emergency equipment in a specific compartment, the emergency equipment in other compartments can be controlled. To provide a sequential control device for a plurality of emergency devices capable of sequentially controlling devices in necessary sections in a short time by operating a starter in fast forward mode without waiting for operation.

A circuit diagram showing an embodiment in which the control device of the present invention is used for an operation test of a radiation type fire detector installed in a tunnel will be described below.

In the figure, X is a receiver, Dl, D2 . D3... is a radiation-type fire detector installed in the tunnel, and includes a photoelectric element such as a solar cell that receives radiation from the flames caused by a fire, and a delay circuit to prevent malfunction due to noise light that rises for a short time. It consists of a switching circuit operated by the output of the
(Refer to Publication No. 103), sensors D□ and D2 are in section I, and D
3... is provided in section ■.

"it Y2t"3... is the sensor D□, D2.
A starter for testing the operation of D3..., Y'1. Y′2
...is a section ■.

(2) A control zone detection starter provided to send a signal for determining... to a receiver.

E is the power supply and sensor DHD2? D3... is a relay N1 provided for each section. Electrical route from N2...
It is connected between L, l... and a common electric circuit.

Starter Y1. Y2. Y3... and the control section detection starters Y' A constant voltage circuit S is connected in series with the make contact of the relay B and a diode d1, and is connected in parallel with a diode having a polarity opposite to that of the diode d1.

The starter Y1 configured in this way. Y2゜Y3...

Y'1. Y'2. . . is a control section detection starter Y'1. at the beginning of each section I, II. Y'2 . . . and, subsequently, the activator Y1 . Y2 and Y3...
・Y′1. Yl, Y2. Y'2. Y3... are connected between the electric circuits 11.1° through the polarity switching contact al of the power source E' so that the polarities of the starters are alternately reversed.

Then, the connection point between the make contact b□ of the starter and the diode d1 is connected to the connection point of the constant voltage circuit S through the electric line 13 to the make contact of the next starter.

P is a push button switch for starting and the first starter Y'1
It is connected to the connection point of the make contact 1 and the constant voltage circuit S.

In addition, the above-mentioned starter Y1. Y2. The make contact of relay B of Y3... is connected to sensor D1. D2. The electric circuit 14 is connected in series with the test lamp L provided opposite to D3...
．． Connected between Lo.

In addition, the control section detection starter Y'1. Y',...
The make contact of relay B is connected between the electrical lines '4t to through a resistor R□ selected to carry a current less than the lighting current of lamp L.

One end of the electric path 14 is connected to a power source E at the receiver X through a resistor R2.

The current flowing through the lamp L and the resistor R□ are connected to both ends of the resistor R2.
The transistors T1. T
The base and emitter of 2 are connected, the former via a Zener diode d' and the latter via a resistor R3.

Further, the transistor T1. The collectors of T2 are each electrically connected through a resistor R1.

The former is connected to the input of the AND gate circuit G through the NOT circuit I, and the latter directly to the input of the AND gate circuit G.

The output of the AND gate circuit G is connected to the input of a counting circuit H, and the counting circuit H has one or more terminals for specifying the number of the section that requires control, and the count value from the specified value and the input. It is configured to output an output when the two match, and to hold the output until the next input.

The output of the counting circuit H is connected to the base of a transistor T3 connected in series with a relay C.

The break contact C of the relay C and the push button switch P'
and an oscillator O having a relay J at its output terminal are connected to the electric line 14.
Connected in series between Lo.

Make contact j of said relay J and said relay N□, N2...
Make contacts n , al is connected to relay A.

Next, the operation will be explained assuming that an operation test is performed for the sensor D3 and subsequent sections, that is, the section (2).

In this case, the designated value of the terminal of the counting circuit H is designated as 2 in accordance with the control section (■).

Then, when the push button switch P' is pressed and the relay J is operated via the oscillator O to open and close the contact j intermittently, the relay A is operated every even number through the operation of the flip-flop circuit, and the switching contact is , al are switched, and the polarity of the electric circuits 1□ and 1□ is switched at regular time intervals.

When the pushbutton switch P is closed for a short period of time in this state, voltage is supplied to the constant voltage circuit S of the control section detection starter Y'1, and the relay B is operated with the voltage maintained at a constant voltage.

This action closes the make contact and maintains its action through the diode d1, and also closes the contact b2, allowing current to flow through the resistor R1.

Since only the transistor T2 is operated by this current, one input of the AND gate circuit G becomes a high level, and the other input is also a high level through the NOT circuit ■, so its output becomes a high level and the counting circuit H to 1
is counted and it is displayed that the operation of control section I has started.

In such a state, when switching contact , a/ is switched through the operation of relay A, control section detection starter Y
A back electromotive force approximately determined by the number of turns and the constant voltage at both ends is generated in the coil of relay B, and the Zener diode d'
A current flows through the relay B through the base and emitter of the transistor T, and its operation is maintained for a short time.

By holding the make contact of the relay B for a short time, the positive terminal of the power source E', the normally open side of the switching contact a', and the electrical circuit 1
□, diodes of starter Y'1, contact b□, electrical circuit 13
, the constant voltage circuit S1 of the starter Y make it work.

This operation closes the make contact and maintains the operation, and the lamp L is lit by the make contact.

The current flowing through the lamp L operates the transistors T□ and T2, so that the AND gate circuit G is held at a low level.

Furthermore, when the polarity of the electric circuits 1□ and 1° is reversed, the starter Y2
operates and lights up the lamp L in the same way as the starter Y□.

However, the switching contacts of relay A controlled by oscillator O,
At the switching speed of a/, the time to turn on the lamp L and irradiate the photoelectric element of the sensor is short, so the sensor D1 and D2 are controlled by the integral action of the delay circuit inside the sensor or the capacitor installed in the amplifier. I can't get it to work.

And the control compartment detection starter Y installed in the control compartment ■
When '2 is activated, the counting circuit H is activated in the same way as the starter Y'1, and the count becomes 2.

Since the counted value matches the specified value, the transistor T3 conducts and operates the relay C, and a lamp (not shown) is turned on to indicate that the match has been made.

Also, the break contact C of the relay C is opened and the oscillator O is stopped.

In such a state, if the pushbutton switch P" is pressed for a short time manually or automatically, the flip-flop circuit K is operated again, and the polarity of the electrical circuit 11.1□ is reversed via the relay A, and the starter Y3 is activated. Operate.

The operation of the starter Y3 turns on the lamp L through the make contact, activating the sensor D3.

Then, relay N2 operates and make contact n2 is closed.
Relay A is activated by the output to the flip-flop circuit, the polarity of electric circuits 1□ and 1° is reversed, the next starter (not shown) is activated, and when the sensor is activated, relay N2 is activated again. , electric line 1□? The polarity of '2 is reversed and the operation test of the sensor in control section (2) is performed.

When the operation further moves to the next control section ■ (not shown), the relay C becomes inactive, the oscillator O operates again, and the starter is fast-forwarded, and the control section detection starter at the terminal of the electric circuits l□ and 1□ It can be seen that the operation is counted by the counting circuit H and the control is completed.

Furthermore, by continuously holding the output of the counting circuit H, it is possible to test all sections after the designated section.

In the above embodiment, the control device of the present invention was used to test the operation of a sensor, but it may also be used to control emergency equipment such as a fire alarm device, fire extinguishing equipment, smoke prevention equipment, etc.

For example, a relay that activates a fire door may be used instead of lamp L, and sensor D1. D2. If D3... is replaced by a contact that detects the operation of the fire door and opens for a short time, and if the above-mentioned relay is a slow-acting type, the above-mentioned relay will not operate while the starter is operated in fast forward mode. Therefore, it is possible to quickly operate the fire doors in specific sections one after another.

Further, in the above embodiment, the control section detection starter Y'1. Y′
2... was especially provided, but the starter Y1.2 for controlling the equipment.
A resistor may be connected in parallel with the lamp L associated with Y3, and the control section may be determined by detecting the current flowing through the parallel circuit.

Furthermore, the starter Y'1 and the starter (not shown) for detecting the control section provided at the terminals of the electric lines 11 and 12 can be omitted.

As described above, the present invention provides a control section detection starter for each section, and when controlling or testing equipment in some sections, the starters for sections that do not require control of the emergency equipment are fast-forwarded. Since the system is operated in a short period of time, it is possible to obtain a sequential control device for a plurality of emergency devices that can sequentially control devices in necessary sections in a short period of time.

BRIEF DESCRIPTION OF THE DRAWINGS The drawing is a circuit diagram showing an embodiment of the present invention. Yl, Y2. Y3...Starter, Y'□, Y'2
...Starter for control section detection, B...Relay, To...Make contact, L...Lamp, R□...Resistance .

Claims (1)

[Claims for Utility Model Registration] A contact (aha') that alternately switches the polarity of the electric line (11, 1□) whose one end is connected to the power source E', and the electric line (1□,
1 □) A series circuit consisting of a constant voltage circuit S with a relay B on the output side, the make contact area of the relay B and a diode d□, which are connected in reverse polarity between them, and the constant voltage circuit S Diodes with opposite polarity to diode d1 connected in parallel, starters for controlling emergency equipment (Y□, Y2, Y3...) that connect to contacts for controlling emergency equipment, and these emergency equipment. Starters for controlling emergency equipment (Yl.
Y3...), and for each of these sections, a starter for controlling the front and rear emergency equipment (Yl9 Y29
A constant voltage circuit S with a relay B on the output side, a series circuit of the make contact area of the relay B and a diode d□, and a constant voltage circuit connected so that the polarity is opposite to Y3...) A starter (starter) for control section detection consisting of a diode d2 of opposite polarity to the diode d1 connected in parallel to S and a make contact with a series low loss B1 provided between the electric circuit ('4? Lo) Y'□, Y'2...) and electric circuits (Ll, L
O9L2. Each section (I...) connected in parallel between LO...)
, II...) for detecting the operation of emergency equipment (
Relay means (Nl, N2...) provided in L□, L2...)
...) and the control section detection starters (Y' Relay means for counting (
R2, T2), the counting means H, and the output of the counting means H change the switching speed of the contact (at'') from high speed to low speed according to the operation of the relay means (N□, N2...). It consists of a receiver
A control device for a plurality of emergency equipment, characterized in that diodes d1 and dedicated cathodes before and after Y3...) are connected to each other by an electric line 13.