KR890000023Y1 - Alarm device of elevator - Google Patents

Abstract

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Description

Security operation of the elevator

1 is an external configuration diagram of an elevator operating panel to which the present invention is applied.

2 is a circuit diagram of an operation driving unit of the present invention.

3 is a circuit diagram of a digital signal input unit of the present invention.

* Explanation of symbols for main parts of the drawings

TM ₁ : Timer for door open waiting time counter

TM ₂ : timer for digital signal input latency counter

BG: Relay for output detection of digital signal input circuit BZ: Buzzer

KY: Motion detection relay of key switch

L ₁ : Method operation indicator SW ₁ : Key switch

LED ₁ : digital signal input status indicator

LB: Button for digital high signal input

RB: Button for digital low signal input

DSW: Switch for setting binary password code

EK: Output relay of digital signal input circuit

10: counter 20: shift register

30: 4-bit compound

The present invention relates to a crime prevention operation device of the elevator to prevent the intrusion of the suspicious person in the day or night with less frequent use of the elevator installed in the residential.

Conventional devices have a complicated structure, which is very expensive to install, and therefore, it is very difficult to install them in an elevator for an apartment or a group house.

The present invention is to provide a crime prevention operation device that is easy to install as well as low installation cost in consideration of these points, as described in detail by the accompanying drawings as follows.

The digital signal input button (LB) for driving a half, which is installed in the interior of the lift as shown in Figure 1 in, (RB) and the security operation light (L ₁₎ and a digital signal indicator (LED ₁₎ for displaying an input state, The key switch SW ₁ for the method operation command is provided respectively, and as shown in FIG. 2, the door open command to the relay OP is called the landing point button switch HB and the b contact (OLSb) of the limit switch for opening the door. Connected in series, contact b of the door closing command button switch (CLB) and the operation detection relay (KY) of the security operation command key switch (KYb ₁ ) to the door closing command relay (CL). The door closing limit switch b contact (CLS) is connected in series, and between the contact KYb ₁ and the contact CLS, a contact CLa of the timer contact TM ₁ a, the relay CL, and a digital signal are respectively. When the contact a (BGa ₁ ) of the output detection relay (BG) of the input circuit is connected in parallel, and the contact b (KYb ₂ ) of the detection relay KY is not present at the door open limit switch a (OLSa ₁ ). After parallel connection of the contact a (WDa) of the load detection relay to be turned on, the timer (TM ₁ ) for the door open waiting time counter during normal operation is connected in series, and the contact a (KYa) relay of the (KY) of the relay ( B contact (BGB ₁ ) of BG), contact a (OLSa₂) of the door open limit switch connected in parallel, and contact a (TM₂a₁) of the timer (TM₂) are connected in series to the timer (TM₂) for the digital signal input waiting time counter. A contact (EKa) and an output relay (EK) of the digital signal input circuit to the contact b (TM₂b) of the timer (TM₂). Connected in series to the relay chulyong (BG), and, a contact point of the timer (TM ₂₎ ( Is connected to the buzzer BZ, and a security driving indicator L ₁ of the key switch motion detection relay KY is connected in parallel to the key switch SW ₁ to configure the driving driver.

In addition, as shown in FIG. 3, two digital signal input buttons LB and RB have a resistor R ₁ , a capacitor C ₁ , a resistor R ₂ , a capacitor C ₂ , and an inverter I. _1), the NOR gate (NOR ₁₎ connected to one side input terminal of the aND gate (a _1), and the NOR gate (NOR _1), and-output end, the respective shift register (20 of the gate (a ₁₎ through (I ₂₎ Through the data input terminal (D) and the inverter (I ₃ ) of the click input terminal (CP), click input terminal of the counter 10 ( ), And each of the output terminals (Q ₀ ), (Q ₁ ), (Q ₂ ), and (Q ₃ ) of the shift register 20 has a binary password code setting switch (DSW) for another input. Input terminals A ₀ , A ₁ , A ₂ , and A of the 4-bit comparator 30 connected to terminals B ₀ , B ₁ , B ₂ , and B ₃ . ₃ ), the output relay EK of the digital signal input circuit is connected to the comparison output terminal A = B of the 4-bit comparator 30 through the transistor TR ₂ , and the key switch SW ₁ ) is connected to the output terminal Q ₂ ′ of the counter 10 through a capacitor C ₄ , a resistor R ₄ and a diode D ₁ , and then through the inverter I ₄ , the shift register 20. Reset terminal of ) And the light emitting display LED ₁ through the NOR gate ₂ and the transistor TR ₁ of the output terminals Q ₀ ′ and Q ₁ ′ of the counter 10. The signal input unit is configured.

Reference numeral _VCC is a DC power supply, 1 is an interphone, 2 is a driving direction indicator, and 3 is a nematode registration button.

Referring to the effects of the present invention configured as described above are as follows.

First, when the key switch SW ₁ for the crime prevention operation command shown in FIG. 3 is turned on, a pulse signal is returned to the counter 10 through the capacitor C ₄ , the resistor R ₄ , and the diode D ₁ . The output terminals Q ₀ ′, (Q ₁ ′), and (Q ₂ ′) signals applied to the set terminal MR are all cleared to a low state, and a signal inverted to high through the inverter I ₄ is Reset terminal of shift register 20 ( ), The output terminals Q ₀ to Q ₃ of the shift register 20 are also cleared to the low state.

In this state, by operating the binary coded code setting switch DSW, the input terminals B ₀ , B ₁ , B ₂ , and B _{3 of} the 4-bit compound 30 are respectively B. Assuming that ₀ = 1, B ₁ = 0, B ₂ = 0, and B ₃ = 1, the input terminal (A ₀ ~ A ₃ ) signal of the 4-bit comparator 30 and the input terminal (B ₀ ~) B ₃ ) Because the signal is different, the comparison output terminal (A = B) goes low and the output relay EK is off.

In addition, since the output terminals Q ₀ ′ and Q ₁ ′ signals of the counter 10 are also in a low state, the output terminal signal of the NOR ₂ N is made high and the transistor TR ₁ is turned on so that the light emitting indicator ( LED ₁ ) lights up to inform passengers that they may input a digital signal.

When the digital signal input button LB is pressed in the above state, the output terminal of the inverter I ₁ is low, so that the output terminal of the NOR gate NOR ₁ is high, and the output terminal of the AND gate A ₁ is low. After a predetermined time delay by the resistor R ₃ and the capacitor C ₃ , a high signal is applied to the clock input terminal CP of the shift register 20, and an input terminal D is applied to its output terminal Q ₀ . The high signal shown in is output.

At this time, when the digital signal input version RB is pressed again, the output terminal of the inverter I ₂ is low, and thus the output terminal of the AND gate A 'is also low, and the inverter I ₃ is in a high signal state.

At this time, the output terminal signal of the no gate N ₁ is low because the digital signal input button LB is open, and the output terminal Q ₁ of the shift register 20 is high. Output terminal Q ₀ goes low.

When the digital signal input buttons RB and LB are pressed in turn, the output terminals of the shift register 20 have Q ₃ = 1, Q ₂ = 0, Q ₁ = 0, and Q ₀ = 1 as described above. do.

Therefore, the input terminal of the four-bit composite rate _{(30) (A 0 ~ A} 3) and the input terminal (B ₀ ~ B _3), so the signal is the same compared to the output terminal (A = B) has been displayed the high signal to the transistor (TR ₂ ) Conducts the output relay (EK).

On the other hand, in the output terminal Q ' ₀ (Q' ₁ ) of the counter 10 that counts the signal of the AND gate A ₁ , the output terminal Q ₀ until the clock signal of the AND gate A ₁ is 13th _. Since one of '), (Q ₁ ') is high, the output signal of the NOR gate NOR ₂ goes low, and the digital signal input status indicator LED ₁ turns off to indicate that a signal is being input. .

Next, when the fourth digital signal is inputted, the output terminal Q ₂ ′ signal of the counter 10 becomes high, and the counter 10 and the shift register 20 are cleared and reset to the initial state.

So far, the operation of the digital signal input unit of the present invention has been described. The overall operation of the circuit will be described as follows.

As shown in FIG. 1, when the crime prevention operation command key switch SW ₁ installed in the operation panel inside the elevator is turned on, the digital signal input state indicator LED ₁ lights up as described in FIG. In addition, the security operation command relay KY is driven by the connection of the key switch SW ₁ shown in FIG. 2, and the security operation lamp L ₁ is turned on.

In such a state, when the call button (HB) installed in the platform is pressed, the door open command relay (OP) shown in FIG. 2 is driven to open the door of the elevator, and when the door is completed, the door open limit switch (not shown) The contact a (OLSa ₂ ) is connected, and the timer TM ₂ for the digital signal input waiting time counter starts counting operation.

At this time, the timer (TM 시간) for the door open waiting time counter during normal operation is opened when its b contact (KYb₂) is opened in accordance with the operation of the relay KY, and is connected when no passengers board by the load detection signal of the elevator. Since the contact WD is also in an open state, it does not operate.

In this state, by pressing the digital signal input button LB, RB installed in the elevator's internal operating panel, the same digital signal as the binary coded code already set is output relay (EK) of the digital signal input circuit as described above. ) is when the driving state before the digital signal input latency counter timer (TM₂) for the operation output relay (EK) of a contact (EKa) is continued output detection relay (BG) are so other contact b (BGb ₁ drive ) Is opened and the timer TM ₂ is reset.

In addition, since the contact a (BGa ₁ ) thereof is connected to the door closing command relay CL, the door of the elevator is closed, and operation is performed at the desired destination floor.

If the digital signal is not input for a set time (approximately 20 seconds), the timer TM ₂ is driven so that its contact point TM ₂ a ₂ is connected so that the buzzer BZ is activated to generate an alarm sound. The guard will be notified that the suspicious person has been invaded.

In addition, when the passenger presses the call button in the platform and does not board after the door is opened or the passenger gets off the elevator after arriving at the destination, the relay contact (WDa) of the relay operated by the load detection device signal of the elevator is connected. The door open wait time counter timer (TM ₁ ) at the time of operation is operated, and after the set time (about 5 seconds), its a gerber (TM ₁ a) is connected and the door closing command relay (CL) is driven so that the door is closed. The open limit switch a contact OLS ₂ is opened, and the timer TM ₂ is reset.

In addition, the binary password code can be arbitrarily changed by the switch (DSW), and the time required to find the code of the password takes 10 minutes or more, thereby increasing the security effect.

The present invention, which operates as described above, is very suitable for an elevator for an apartment or a group house because the structure is simple and easy to install even at a low price.

Claims (1)

The contact point KYb is connected in series to the door closing command relay CL by connecting the closing command button CLB, the contact relay KYb b KYb ₁ , and the door closing limit switch b contact CLS. ₁ ) and the contact a (CLa) of the timer (TM ₁ a) and the relay (CL) between the contact (CLS), respectively. Of an a-contact (BGa ₁₎ for the output detection relay (BG) connected in parallel to the door (KY) b contact (KYb₂) of the detection relay for a contact (OLSa ₁₎ of the open limit switch, and a load detection relay contact a ( After parallel connection of the WDa), the timer (TM ₁ ) for the door open waiting time counter is connected in series, and the contact b (BGb ₁ ) of the relay BG is connected in parallel with the contact a (KYa) of the relay KY. A contact (OLSa ₂ ) of the door open limit switch and a contact (TM₂a₂) of timer (TM ₂ ) are connected in series and connected to timer (TM₂) for digital signal input waiting time counter, and b contact of timer (TM₂). a contact point of the digital signal input (EK) of the output relays in the circuit a contact point (EKa) and output detection connecting for relay (BG) in series, and said timer (TM ₂₎ to _{(TM 2 b) (TM 2} a 2 ) by parallel connection of a detection relay (KY) and the security operation light (L ₁₎ on the key switch (SW ₁₎ and connected to a buzzer (BZ) to configure the operation drive unit , And via an inverter (I _1), NOR gate (NOR ₁₎ and the inverter (I _2), AND gates (A _1), the inverter (I ₃₎ to said digital signal input button (LB), (RB) shift register (20), the other input terminal (A ₀ -A) of the 4-bit comparator (30) to which the counter 10 is connected and the switch for setting a binary coded code (DSW) is connected to the input terminals (B ₀ to B ₃ ). ₃ ) is connected to the output terminals Q ₀ to Q ₃ of the shift register 20, and the output relay EK is connected to the output terminal of the counter 10 through the comparison output terminal A = B transistor TR₂. (Q ₀ ') and (Q ₁ ') constitute a digital signal input unit connected to a light emitting indicator (LED ₁ ) through a NOR gate (NOR ₂ ) and a transistor (TR ₁ ) at an operating panel installed inside the elevator. Driving device of a lift.