JPH0642318Y2 - Remote control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention operates a control device based on a command from a receiver, and remotely controls a flameproof device such as a bell by a control signal from the control device. Remote control device.

(Prior Art) In a conventional remote control device that remotely controls a flameproof device such as a bell, a signal line, a power line, and a common line are drawn from a receiver and connected to the control device. The signal line and the power line share the common line, and when the control device determines the command signal from the receiver obtained via the common line and the signal line, the control line connected between the common line and the power line Was driving the relay.

On the other hand, a bell wire is pulled out from the receiver separately from the above-mentioned three lead wires from the driving power source for driving the flameproof device such as a bell, and the bell wire is passed through the relay contact of the control relay built in the control device. The ringing of the bell was controlled by opening and closing the relay contacts based on the operation of the control relay.
That is, the control relay is driven by the operation of the control device based on the command from the receiver to remotely control the ringing of the bell.

(Problems to be solved by the invention) However, in such a conventional remote control device, a large number of lead wires from the receiver, that is, a driving bell wire for the bell and a common wire, a signal wire, and a power wire for the controller are provided. Each of them is drawn out, and the wiring work is complicated in the installation work of the equipment, and it has been desired to reduce the number of lead wires from the receiver to simplify the wiring work.

Further, in the control device, although the control circuit connected between the common line and the signal line is a low-consumption type using an integrated circuit or the like, a relay for control is provided between the common line and the power supply, The drive current between the power supply and the common line by this relay carries more line current than the signal line side, and since the common line is shared, the rush current due to ON / OFF of the control relay or the counter electromotive force causes noise. There is a risk that the control circuit may malfunction due to addition to the signal line side.

Therefore, it is possible to separate the control relay power supply and the drive power supply for the control circuit from each other, but it is possible to prevent malfunction of the control circuit due to noise or the like due to ON / OFF of the control relay. A new power line dedicated to the control relay was needed, and there was still room for improvement.

(Means for Solving Problems) The present invention has been made in view of the above problems, and it is possible to securely connect a flameproof device such as a bell to a remote control device with a small number of connecting lines without degrading the function of the remote control device. In order to provide a remote control device to control the receiver, the receiver is provided with a drive power source and a processing command unit, and a pair of signal lines (L1, L
A control device for driving a flameproof device such as a bell is connected to 2) and a monitoring device for returning flameproof information by calling control from the processing command section, and a pair of drive lines (L5 , L6) is connected to the flameproof device to identify a command signal sent from the processing command unit to the control device via the pair of signal lines (L1, L2). A command signal identification circuit and a latching relay that performs a switching operation based on the signal output from the command signal identification circuit are provided, and the latching relay is connected between the pair of drive lines (L5, L6), and the relay of the latching relay is provided. The contact is provided by being inserted and connected to a drive line between the drive power supply and the flameproof device, and the processing command unit is driven by a power supply different from the drive power supply.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

First, the configuration will be described. 1 is a receiver, which is a power line L3 and
Power for driving is supplied to the plurality of monitoring units 2 via L4.
In addition, a pair of power source / signal lines L1 and L2 are drawn from the receiver 1 to connect the plurality of monitoring units 2 and the control device 3 installed in each of the plurality of monitoring areas. A unique address is set in advance in each of the plurality of monitoring units 2, and the call pulse from the receiver 1 is counted, and when the count value matches its own address, the flame monitoring information is set as the call pulse. The signal is returned to the receiver 1 in the current mode within the free time corresponding to the pulse interval. Further, bell lines L5 and L6 which are drive lines for driving the flameproof device are drawn from the receiver 1 and connected to the control device 3. The bell line L5 is connected to the bell line L7 via a relay contact 4 and a diode D14 built in the control device 3. A plurality of flameproof devices composed of a series circuit of a diode 5 and a bell 6 are connected between the bell lines L6 and L7, and a diode 13 for disconnection monitoring is connected to the end.

Next, the internal configuration of the receiver 1 will be described. Reference numeral 7 denotes a processing command unit, which includes a signal processing unit 7b that receives the monitoring information from the plurality of monitoring units 2 and performs signal processing, and outputs a signal to the control unit 8.
Further, the processing command unit 7 has a built-in power supply unit 7a that is independent of a drive power supply, which will be described later, and superimposes a command signal based on a command from the control unit 8 on a predetermined voltage Eo to supply the power-supply signal line L1, L
2 to the control device 3. That is, the processing command unit 7
Then, the address and command contents of the control device 3 are superposed on the voltage Eo supplied as the driving power source of the control signal 3 and the command signal composed of a plurality of pulse trains is returned. Reference numeral 10 is a driving power source for driving the flameproof device, which supplies the bell wires L5 and L6 through the detection resistor Ro and the relay contacts 11a and 11b of the inversion relay. As shown in FIG. 1, the relay contacts 11a and 11b of the reversing relay are normally switched to the solid line side so that the positive voltage from the driving power source 10 is transferred to the bell line L5 side and the negative voltage is switched to the negative voltage. Supply to the bell line L6 side. 12 is the control device 3
It is an operation unit that has a built-in numeric keypad for designating an address, a test switch, and the like, and can perform a ringing bell or a line test of a bell line by manual operation. More specifically, the person in charge of flame prevention visually recognizes the display of the display unit 13 that displays the flame generation area for each address based on the information from the control unit 8, and is located in the flame generation area and the floor immediately above it. By designating the address of the control device 3 and operating the operation unit 12, the corresponding bell 6 can be rung. In addition, when conducting a line test of the bell wire, the built-in test switch is operated to drive the reversing relay provided in the control unit 8,
Switch the relay contacts 11a and 11b of the reversing relay to the dotted line side. Along with switching of relay contacts 11a and 11b, drive power source 10
From the positive side of the detection resistance Ro, relay contact 11b, bell wire L
6, diode 13, bell wire L7, taiode D14, bell wire L
5. A closed loop reaching the negative side of the driving power supply 10 is formed via the relay contact 11a. In addition, the control unit 8 detects the detection resistance.
By detecting the voltage across Ro, bell wires L5, L6, and L7 can be monitored for disconnection.

FIG. 2 is an embodiment of a circuit diagram showing the internal configuration of the control device 3 shown in FIG.

A calling signal discriminating circuit 14 is connected to the power / signal line L1 drawn from the receiver 1. Ringing signal discrimination circuit 14
, A unique address is set in advance, and when a command signal from the receiver 1 obtained via the pair of power / signal lines L1 and L2 is received and it is determined that the address matches with its own address, A signal is output to the command signal identification circuit 15. The command signal discriminating circuit 15 operates based on the signal output from the calling signal discriminating circuit 14, and decodes the command signal from the receiver 1, that is, whether the flameproof device is driven or stopped to drive the flameproof device. When it is determined that the signal is the command signal, the H level is output to the light emitting circuit 16. The light emitting circuit 16 is a latching relay in which a resistor R1 and a capacitor C1 are connected in series to a parallel circuit of a light emitting diode PD1 and a diode D1, and a reset pulse circuit and a resistor R2 and a capacitor C2 are connected in series to a parallel circuit of a light emitting diode PD2 and a diode D2. The set pulse circuit is connected to the command signal identification circuit 15 at the connection point between the latching relay reset pulse circuit and the latching relay set pulse circuit. Bell line L5 and
A bridge circuit 17 in which a rectifying diode is bridge-connected is connected between L6, and even if the relay contacts 11a and 11b of the inversion relay shown in FIG. 1 are switched, from the output side of the bridge circuit 17, Voltages with the same polarity are always output. A latching relay circuit that drives the latching relay 18 is connected to the bridge circuit 17. To explain this latching relay circuit in detail, the bridge circuit 17
Between the power line from the photo transistor PH2, resistor R3
And a resistor R4 are connected in series, and the connection point of the resistors R3 and R4 is connected to the base of the transistor Q1. In addition, resistors R5 and R6 and a transistor are connected between the power lines from the bridge circuit 17.
Q1 is connected in series, and the connection point of the resistors R5 and R6 is connected to the base of the transistor Q2. The collector of the transistor Q2 is connected to the set terminal SE of the latching relay 18 and the backflow prevention diode D3. PH1 is a phototransistor that receives the pulsed light of the light emitting diode PD1 that constitutes the reset pulse circuit.
A series circuit composed of PH1 and resistors R9 and R10 and a series circuit of resistors R7 and R8 and transistor Q4 are connected in parallel to form resistors R9 and R10.
The connection point of is connected to the base of transistor Q4. The connection point of the resistors R7 and R8 is connected to the base of the transistor Q3, and the collector of the transistor Q3 has a reset terminal RE of the latching relay 18 and a diode D4 for preventing backflow.
Are connected. Bell wire L5 drawn from drive power supply 10
The relay contact 4 of the latching relay 18 and the diode D14 are connected in parallel between the bell wire L7 connecting the flameproof device.

Next, the operation will be described. As shown in FIG. 1, the processing command unit 7 gives the monitoring information from the plurality of monitoring units 2 to the control unit 8, and when the control unit 8 judges the flame based on the information from the processing command unit 7, At the same time as driving the display unit 13 to command the flame display, the address of the control device 3 located on the flame generation area and the floor immediately above is designated, and a command signal for ringing the bell is output to the processing command unit 7. . The processing command unit 7 transmits a command signal to the corresponding control device 3 based on a command from the control unit 8. In the control device 3, as shown in FIG. 2, the command signal from the receiver 1 obtained through the pair of power source / signal lines L1 and L2 is input to the call signal determination circuit 14 and is the call signal of itself. If so, the command signal identification circuit
Drive 15 The command signal identification circuit 15 identifies the command signal from the receiver 1 and outputs the “H” level to the light emitting circuit 16. Based on the "H" level output from the command signal identification circuit 15, a differential current flows through the latching relay set pulse circuit, and the light emitting diode PD2 emits light for a predetermined time determined by the time constant of the capacitor C2 and the resistor R2. Note that PD1 does not emit light at the "H" level of the command signal identification circuit 15. When the phototransistor PH2 enters the light emitted from the light emitting diode PD2 and is turned on, it drives the transistors Q1 and Q2. When the transistor Q2 is turned on, a set current flows to the set terminal SE side of the latching relay 18, and the latching relay 18 is set. When the latching relay 18 is set, the relay contact 4 is closed and the corresponding bell 6 is rung.

Next, a remote control operation for remotely stopping the ringing of the bell based on a command from the control unit 8 will be described.

As shown in FIG. 2, when the processing command unit 7 transmits a command signal to stop the bell ringing based on a command from the control unit, the receiver obtained via the pair of power source / signal lines L1 and L2. Input the command signal from 1 to the calling signal discrimination circuit 14,
When it is determined that the signal is a calling signal of itself, the command signal identification circuit 15 is driven. The command signal identifying circuit 15 identifies the command signal from the receiver 1 and outputs the “L” level to the light emitting circuit 16. Based on the "L" level output from the command signal identification circuit 15, a differential current flows in the latching relay reset pulse circuit, and the light emitting diode PD1 emits light for a predetermined time determined by the time constants of the capacitor C1 and the resistor R1. When the phototransistor PH1 enters the light emitted from the light emitting diode PD1 and is turned on, it drives the transistors Q4 and Q3. When the transistor Q3 turns on, a reset current flows through the reset terminal RE side of the latching relay 18 and the latching relay 18
Reset 18. When the latching relay 18 is reset, the relay contact 4 is opened, and the ringing of the corresponding bell 6 is stopped.

In the above embodiment, the bell is used as the flameproof device for remote control based on the command from the receiver, but a damper or the like may be used.

Further, in the above embodiment, the "H" from the command signal identification circuit 15
Light output circuit based on level output or "L" level output
It is configured to drive 16 and set or reset the latching relay 18 using optical means by the corresponding light emission pulse, but the latching relay 18 is directly connected via the signal line without using such optical means. It may be driven.

That is, a drive circuit for setting or resetting the latching relay 18 according to the "H" level signal or the "L" level signal as an input signal is provided, and the command signal identification circuit is provided.
The output from 15 is, for example, an “H” level output in response to a command signal for instructing the buzzer sounding, and an “L” level output in response to a command signal for instructing to stop the buzzer sounding. It may be configured such that each is input to the drive circuit and the latching relay is drive-controlled via the drive circuit.

(Effect of Configuration) According to the present invention as described above, the receiver is provided with the drive power source and the processing command section, and the pair of signal lines (L1, L2) drawn from the processing command section are protected against the occurrence of a bell or the like. The flame-proof device is connected to a control device and a monitoring device that returns flame-proof information by calling control from the processing command unit, and the flame-proof is provided on a pair of drive lines (L5, L6) drawn from the drive power source. In a remote control device configured by connecting devices, to the control device, a command signal identification circuit that identifies a command signal sent from the processing command unit via the pair of signal lines (L1, L2), A latching relay that performs a switching operation based on the signal output from the command signal identification circuit is provided, the latching relay is connected between the pair of drive lines (L5, L6), and the relay contact of the latching relay is connected to the drive power source. Drive between flame devices The processing command section is driven by a power supply separate from the driving power supply, so that the flameproofing device can be driven and stopped by passing a small current through the latching relay of the control device. Since it is possible to use the drive power source of the flameproof device as a power source, it can be configured with the minimum necessary connection lines without requiring a special power line, and the work efficiency of wiring work during installation work Can be improved. In addition, the drive power supply of the latching relay is separated from and independent of other circuit parts, so that the remote control device can be greatly reliable without the malfunction of the control device due to the inrush current caused by the activation of the flameproof device. The effect of improvement is obtained.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing the internal configuration of the control device of FIG. 1: Receiver 2: Monitoring unit 3: Control device 4: Relay contact 5: Diode 6: Bell 7: Processing command unit 7a: Signal processing unit 8: Control unit 10: Drive power supply 12: Operation unit 13: Display unit 14: Ringing signal discrimination circuit D14: Diode 15: Command signal discrimination circuit 16: Light emitting circuit 17: Bridge circuit 18: Latching relay L1, L2: Power line L3, L4: Power line L5, L6, L7: Bell line PH1, PH2 : Phototransistor PD1, PD2: Photodiode R1, R2 to R10: Resistor C1, C2: Capacitor Q1, Q2, Q3, Q4: Transistor

Continuation of the front page (56) Reference JP 59-60695 (JP, A) JP 53-134396 (JP, A) JP 50-117396 (JP, A) JP 49-46790 (JP , A) Actual development Sho-59-96698 (JP, U) Actual development Sho-55-109550 (JP, U) Japanese patent Sho-56-28312 (JP, B2)

Claims (1)

[Scope of utility model registration request] 1. A receiver is provided with a drive power source and a processing command section,
A pair of signal lines (L1, L2) drawn from the processing command unit
Connect a control device that drives a disaster prevention device such as a bell and a monitoring device that returns disaster prevention information by calling control from the processing command unit to a pair of drive lines (L5, L6) drawn from the drive power supply In a remote control device configured by connecting the disaster prevention device, a command signal identification circuit for identifying a command signal sent from the processing command unit via the pair of signal lines (L1, L2) to the control device. A latching relay that performs a switching operation based on a signal output from the command signal identification circuit, the latching relay is connected between the pair of drive lines (L5, L6), and a relay contact of the latching relay is connected to the drive power source. A remote control device, wherein the remote control device is provided by being inserted and connected to a drive line between the disaster prevention device and the disaster prevention device, and further, the processing command unit is driven by a power source different from the drive power source.