JP3205801B2 - Remote control operation method and device for terminal of disaster prevention equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for remote-controlling a terminal of a disaster prevention facility.

[0002]

2. Description of the Related Art A function test of a terminal of a disaster prevention equipment, for example, a fire detector is performed by operating a smoke detector or a heater by applying smoke or heat to the detector using a rod-shaped tester. ing. However, when applying smoke or heat to the sensor, it is difficult to operate the tester if there is an obstacle such as a pipe below the sensor or if the sensor is installed at a high place. Therefore, in order to solve the above problem, a method of operating a function test device by sending a test signal from a remote control operation unit to a remote control reception unit of a fire detector has been used (see Japanese Patent Publication No. 63-60438).

[0003]

In the conventional test method, the remote control receiving unit is always in an operating state, that is, when the test signal is received from the remote control operating unit, the function test apparatus can be operated immediately. Therefore, an extra current flows by the amount of the remote control receiver. For this reason, the current consumption increases as compared with the case where there is no remote control receiving unit, so that the number of sensors that can be installed must be smaller than the designed number. Also, if the number of sensors is to be designed as designed, the power supply voltage must be increased. Furthermore, in the constantly operating state, if the remote control operation unit is operated by mischief, a function test is started and a fire alarm is issued even though no fire has occurred.

[0004] In view of the above circumstances, an object of the present invention is to reduce current consumption and prevent mischief.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a remote control operating device for a terminal of a disaster prevention facility, wherein a terminal is connected to a power supply of a receiver and the terminal is provided with a remote control receiving section for receiving a remote control signal. The object is not solved by connecting the unit to the power supply via a standby state / operation state switching unit.

[0006]

When the switching means is switched, the remote control receiving unit which is in a standby state in a normal state is brought into an operating state. Therefore, a current flows through the remote control receiving unit, and a remote control signal can be received. In this state, the terminal is operated by sending a remote control signal from the remote control operation unit to the remote control reception unit. After the work is completed, when the switching means is switched to the original state, power supply to the remote control receiving unit is stopped, and the remote control receiving unit enters a standby state.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIG. At the time of fire monitoring, the switch S ₄ in the receiver 2 is on, and as a result, the Zener diodes Z ₂ and Z ₃
It is connected to the base terminal of the transistor Q ₅ in parallel. Zener voltage V _Z 2 of the zener diode Z _2, Z _3,
V _Z 3, since a V _Z 2> V _Z 3, Zener diode Z ₂ is off, voltages V _1, which is applied to the P-Q terminal of the results detector 1, the transistor Q ₅ The following values are included including the voltage drop of the base-emitter voltage Vbe5. V1 = V _Z 3-Vbe5

On the other hand, the PQ terminal voltage Vt required to turn on the transistor Q ₃ of the sensor 1 is the transistor Q ₃
Base-emitter voltage Vbe3, Zener diode Z
If _one of the zener voltage and V _z 1 becomes a value below. _{VT ≧ V Z 1 + Vbe3 (} R12 + R13) / R13 above V1, relation of VT is V1 <VT become like, each component values are chosen, as a result the transistor Q ₃ are turned off. At this time, one terminal of the voltage comparison unit a is connected to the resistor R
Threshold voltage determined by _2, R ₃ are inputted. When a fire occurs and the temperature rises, the resistance value of the negative temperature coefficient thermistor RH decreases. As a result, the + terminal voltage of the voltage comparison unit a increases. Q ₁ is turned on.

[0009] current operation confirmation lamp LED1 of sensor 1 from the power source E in the receiver 2 by turning on the transistor Q ₁ is fed, the fire signal by the current detection resistor R14 in the receiver 2 together with the indication lamp LED1 is lit current is detected, the transistor Q ₄ is turned on the fire indicator lamp LED2 is lit to indicate the occurrence of a fire. During the test, when the switch is turned off S ₄ in the receiver 2, the base terminal of the transistor Q ₅ is for only Zener diode Z ₂ is connected, the detector P
The −Q terminal voltage VH has the following value. _{VH = V Z 2-V HE} 5

Each component constant is selected so that the relationship between VH and VT satisfies VH ≧ VT, and as a result, the transistor Q ₃ is turned on. Transistor Q ₃ is turned on,
When the input voltage of the inverter e is decreased, the output of inverter e rises, the result switch S ₃ such as an analog switch is turned on, the amplifier circuit c in remote control receiver RR, supplies power to the signal processing section d. Remote control receiver RR by the operation becomes receivable state, as shown in FIG. 3, the tester 10 transmits a remote control signal H for the sensor 1 from the remote control unit RC, sensor 1 is a light receiving element PD ₁ It is possible to receive a transmission signal via the transmission line and perform an operation according to the transmission control signal.

The operation when the received signal is the non-operation test control signal and the operation test control signal will be described below. If the received signal is not the operation test control signal, the signal processing unit d is turning on the switch S _1. As a result, the resistance R ₄ is connected in parallel with the resistor R _3, one terminal voltage of the voltage comparator a decrease. However, when the thermistor RH is equal to or higher than a normal predetermined value, each constant is selected so that the relation between the + terminal voltage and the − terminal voltage of the voltage comparison unit a satisfies V + <V−.
The voltage detection unit a does not turn on and the fire signal from the sensor 1 is not transmitted.

In the above case, the signal processing unit d
It is also possible to signal reception is temporarily operated to light using a transistor Q ₂ the operation confirmation lamp LED ₁ with the meaning indicated that was successful to. At this time, in order to prevent the receiver 2 from erroneously detecting the lighting current as a fire signal,
In this embodiment, the capacitor C ₁ is connected in parallel with the current detection resistor R _14.
Connect, to prevent a malfunction of the transistor Q _4.

[0013] When the received signal is an operation test control signal, the signal processing unit d is turning on the switch S _2. As a result, the resistance R
₅ is connected in parallel with the resistor R _3, one terminal voltage of the voltage comparator a decrease. At this time, if the thermistor RH is equal to or lower than a normal predetermined value, the + terminal voltage of the voltage comparison unit a and-
Since each constant is selected so that the relation with the terminal voltage becomes V + ≧ V−, the voltage detection unit a is turned on, the operation check LED1 is continuously lit, and the fire signal is sent from the detector 1 to the receiver 2. Is transmitted.

The tester 10 checks the presence or absence of a fire signal transmission from the detector based on the lighting state of the operation confirmation light LED1. That there is a fire signal
It can be confirmed that the sensor function is normal. The above return to the steady state of each test, automatic return by sensor internal timer (not shown), or is performed by the return control signal by the remote control signal by the test person, the switch S ₄ is on then the receiver 2 And the test ends.

The above case is an embodiment of the sensor test. However, the present invention is not limited to the sensor and the test. For example, the present invention can be applied to a case where a sound device such as a district bell is sounded by a remote control signal. . Further, the terminal voltage of a sensor or the like during control may be reduced. Similarly, a status indicator lamp is provided separately from the operation indicator lamp, and by performing a display according to the status with a current equal to or less than the fire signal current, the function status is displayed to the tester without transmitting a fire signal. Is also good.

Next, a second embodiment of the present invention will be described with reference to FIG. This embodiment uses an addressable photoelectric sensor 3
It is about. At the time of fire monitoring, the light emitting element LED4 emits light intermittently in the smoke detection chamber g of the sensor 3, and the light receiving element PD2 is provided at a position where direct light of the light emitting element LED4 does not enter due to the light shield q. . Smoke detection chamber g
When smoke enters, the scattered light from the light emitting element LED4 is received by the light receiving element PD2, amplified by the amplifying section h, held by the peak hold section i, and then converted into a digital signal by the A / D conversion section j. The data is input to the control unit K composed of an MPU or the like.

When the input signal value is equal to or greater than a predetermined value, the control unit K determines that a fire has occurred, and controls the receiver 4 via the transmitting / receiving unit m.
, The fire signal is returned to the receiver 4 via the transceiver m as a status signal. The receiver 4 detects the fire occurrence based on the status information from the sensor 3,
Performs fire processing such as display and alarm. In the above, the test light emitting element LED5 is in the light-off state.

The receiver 4 can specify an address to each sensor and transmit a remote control receiver control command as in the case of collecting the status information of each sensor. The control unit K When receiving the remote control signal from the receiver 4 specifying its own address, turns on the switch S _7, supplies power to the amplifier Q ₀ and the waveform shaping portion p of the remote control receiver RR. With the above processing, the remote control receiving unit RR is in a receivable state, and when the tester 10 transmits a remote control signal H to the remote control receiving unit RR of the sensor 3 by the remote control operation unit RC, the sensor 3 transmits via the light receiving element PD3. It becomes possible to receive a signal and perform an operation according to the received signal.

The operation when the received signal is the non-operation test control signal and the operation test control signal will be described below. If the received signal is inactive control signal, the control unit K is diverted to the test light emitting element LED5 part of the emission current of the light emitting element LED4 turns on the switch S _5, the light-emitting element for testing with emission of the light emitting element LED4 The LED 5 emits light. The light output from the light emitting element LED5 is received by the light emitting element PD2 without being affected by the light shield q. When the sensor function is normal, the amount of light received at this time is equal to or less than the amount of light received at the time of fire.
A value of 8 is selected. Therefore, if the function is normal, the detector does not emit a fire signal.

When the received signal is an operation control signal, the control unit K
Turned on the switch S _6, similarly to the above light-emitting element LED
5 to emit light and input an optical output to the light receiving element PD2. At this time, the light emitting current limiting resistor R19 is selected such that the light receiving amount of the light receiving element PD2 is equal to or larger than the light receiving amount at the time of fire when the sensor function is normal. Therefore, the detector emits a fire signal if its function is normal.

In the above test, the control unit K determines the test result in each case as the presence or absence of a fire signal according to the calling of the receiver.
Alternatively, it can be returned as test result information to which a signal indicating a test is added, and the remote control operation unit R shown in FIG.
It is also possible to send to the tester 10 by the transmitting unit RA for C. That is, the controller K is a LED6 of the transmission unit RA if function is normal, for example, by flashing to light at a first frequency and transmits the normal signal to the remote control unit RC, the second if function is abnormal Blinks at the frequency of and sends an abnormal signal. The remote control operation unit RC lights a normal lamp (not shown) when receiving a normal signal from the transmitting unit RA, and turns on an abnormal lamp (not shown) when receiving an abnormal signal to notify the tester. Restoration of each test is performed by automatic restoration by a sensor timer (not shown), restoration control from a receiver, restoration control by a remote controller, and the like. Also, as in the first embodiment, the sensor 3 is provided with a confirmation light LED1, and the control unit K determines that the function is normal when the signal received from the remote control operation unit RC is confirmed, and that the control unit K determines that a fire has occurred. When sending out a fire signal
The lighting of the confirmation light LED1 may be controlled.

The remote control transmission / reception units RR and RA are not limited to the above-described tests. For example, when the tester requests the sensor-specific information such as the type and sensitivity of the sensor and the address using the remote controller, each of them is not limited to the above-described test. It is also possible to transmit information with a remote control. Further, control such as sensitivity change and address setting may be performed by a remote controller. In addition, although the address in the above-described embodiment is different, a common address may be defined for each of a plurality of terminals, and the remote control receiver may be simultaneously operated for each of the plurality of terminals. Although the remote control signal in the above embodiment is an optical signal, a similar function can be realized by using other space propagation signals, for example, radio waves and sound waves.

[0023]

As described above, according to the present invention, since the remote control receiving unit is connected to the power source of the receiver via the standby state / operation state switching unit, the remote control receiving unit is set in standby by switching the switching unit. State or operating state. Therefore, when the remote control receiver is not used, the power can be stopped from the receiver in the standby state, so that the current consumption can be reduced as compared with the conventional example. Further, in the standby state, even if the remote control operation unit is operated, the remote control reception unit cannot receive the signal, so that misinformation due to mischief can be prevented.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a first embodiment of the present invention.

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

FIG. 3 is a diagram showing a use state.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 sensor 2 receiver 3 sensor 4 receiver S ₃ switch (standby / operating state switching means) S ₇ switch (standby / operating state switching means) RR remote control receiving unit RC remote control operating unit

Claims (8)

(57) [Claims] 1. A remote control operation method for a terminal of a disaster prevention facility that operates a terminal by transmitting a remote control signal from a remote control operation unit to a remote control reception unit of a terminal supplied with power from a receiver. A remote control operation method for a terminal of a disaster prevention facility, wherein the standby state is maintained in a normal state by a standby state / operation state switching means. 2. The remote control operation method for a terminal of a disaster prevention facility according to claim 1, wherein the standby state / operation state switching means is switched by changing a power supply voltage supplied from the receiver to the terminal. 3. The remote control operation method for a terminal of a disaster prevention facility according to claim 1, wherein the standby state / operation state switching means is switched by a control signal from a receiver. 4. A remote control device for a terminal of a disaster prevention facility having a terminal connected to a power supply of a receiver and a remote control receiving unit for receiving a remote control signal from the terminal, wherein the remote control receiving unit is in a standby state / operating state. A remote control device for a terminal of a disaster prevention facility, wherein the remote control device is connected to the power supply via a switching unit. 5. A remote control device for a terminal of a disaster prevention facility, wherein a terminal is connected to a power source of a receiver and the terminal is provided with a remote control receiving unit for receiving a remote control signal from a remote control operating unit. A remote control device for a terminal of a disaster prevention facility, wherein the remote control device is connected to the power supply via a standby state / operation state switching unit and includes a reply unit. 6. A terminal for disaster prevention equipment according to claim 4, wherein the standby state / operation state switching means is a switch which is switched by a change in a power supply voltage supplied from the receiver to the terminal. Remote control device. 7. The remote control device for a terminal of a disaster prevention facility according to claim 4, wherein the standby state / operation state switching means is a switch that is switched by a control signal from a receiver. 8. The remote control device for a terminal of a disaster prevention facility according to claim 4, wherein the terminal is a fire detector provided with a self-function test circuit.