JPS5997981A - Burglarproof device for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a security device for an elevator.

Recently, crimes in elevators have been occurring frequently and have become a social problem. There are many reasons why crimes occur, but the most important reason is the lack of appropriate sensors to detect crimes.

In other words, the reason why crimes are committed in elevators is that even though elevators are public vehicles, the interior of the elevator car is a closed room, making it difficult for a third party to discover the crime. Therefore, many crimes can be prevented if appropriate sensors are available.

As a countermeasure for this, for example, there is the ``Crime Prevention Measures Standard for Elevators for Apartment Buildings'' (hereinafter simply referred to as ``Crime Prevention Measures Standard''5) established by the Japan Elevator Association. This stipulates that the interior of the car be made easier to see from the outside by providing glass windows in car doors and landing doors, and by forcing the car to stop at each floor. On the other hand, since crimes in elevators are committed in a limited location, such as inside the elevator car, escape after the crime is more restricted than in other crimes. If the car can be notified, the culprit can be arrested in the act, which is extremely effective in preventing recurrence of the crime.For this purpose, the crime prevention standard also stipulates that a push-button switch for the alarm should be installed inside the car. It is being

However, since the inside of the car is easily visible late at night, even if the inside of the car is configured to be easily visible, it cannot be expected to have much of a crime prevention effect. Furthermore, when a criminal act is actually being committed, passengers are deprived of their freedom of movement and are exposed to fear, so even if a push-button switch for an alarm is installed in the car, the passenger may not be able to carry out the crime. could not be operated and was only operated for the first time after the criminal escaped.

For this reason, even if the above-mentioned crime prevention standards were adopted for elevators, there was a drawback in that very little effect could be expected in preventing crime from occurring.

This invention has been made in view of the above points,
To provide a crime prevention device for an elevator, which uses a sensor to detect when another passenger comes into contact with or abnormally approaches the body of a passenger, and operates a crime prevention control device by the output of the sensor. Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 7.

1 and 2 show an embodiment of the present invention. FIG. 1 is a view of the inside of an elevator car seen from the opposite side of the entrance and exit of the elevator car, and FIG. 2 is a block circuit diagram. In these figures, 1 is the side wall of the car, 2 is the car door, 3 is the car operation panel with destination floor buttons, etc., 4 is the car position indicator that displays the car position with a lamp etc., and 5 is the car door. A contact sensor is installed on the upper part of the ceiling, and 5a is a handrail-shaped detection end of the contact sensor 5, 5b is a contact detection circuit of the contact sensor 5, and 5c is a detection signal from the contact detection circuit 5b. The signal level is "H", but if it is detected that another person has touched or abnormally approached the passenger's body touching the detection end 5a, the signal level will be "H" (hereinafter simply referred to as 'H' or 'L'). ). 5d is an abnormality detection circuit provided in the contact sensor 5, and the detection signal 5C is detected for a predetermined time T.
Warning signal 5 when it goes to ``L'' for more than 1 (?lle is 1 second)
e is set to H'' and output, and the detection signal 5c is maintained for a predetermined time T, >
T, when it becomes "L" for more than 3 seconds (for example, 3 seconds), the abnormal signal 5f is set to "H" and output. 6 is a warning device installed at the top of the heel ceiling and activated by the contact sensor 5, which outputs the warning signal 5f.
When e is 'H' and the abnormal signal 5f is L'', an intermittent sound is emitted through the speaker 6a provided on the side wall 1 of the car, and when the abnormal signal 5f is H'', the same speaker (ia
A continuous sound is emitted through the .

1 is a contact sensor 5 installed in the building management room (not shown).
8 is an elevator operating device that stops the car at the nearest floor, which is also activated by the contact sensor 5; 9 is a security camera that is installed on the ceiling of the car and is activated by the contact sensor 5. All of the above-mentioned 6 to 9 act as a crime prevention control device. 10 is a reset button provided in the building management room.

FIG. 3 is a circuit diagram of the contact detection circuit 5b of the contact sensor 5. In the figure, C, L represent a capacitor and a reactor, respectively, forming a resonant circuit, and the reactor L1 is connected to another reactor. It is anti-coupled with L0 by mutual inductance M. Tr, , Tr2 are transistors %R1 to RI
l is a resistor for current reduction or voltage division, C1 is a coupling capacitor, C2 and C3 are large capacity capacitors, and E is a DC power supply. Transistor Tr1, reactor L1, resistor R
,, R2, a reactor forming a resonant circuit, and a capacitor Cu constitute a transistor type anti-coupling oscillation circuit. Among the resistors R1, R, which bias the base of the transistor Trl, the resistance value of the resistor R1 is selected to be large to suppress oscillation. Therefore, if the circuit impedance of resistor R1 becomes small, oscillation occurs immediately.

Furthermore, since a large-capacity capacitor C7 is connected in parallel with the power supply E, this is equivalent to grounding the upper end of the capacitor C2 for high frequency components. Now, the detection end 5aK'
If a human body, etc. approaches or comes into contact with it, it can be considered that the power supply E side is grounded for the frequency component as described above. This means that the capacitance Cp to ground is connected. In the above circuit, when the capacitance Cp is larger than the constant value C8, the base current path impedance of the transistor Tr1 decreases and the base current increases, and as the base current increases, the collector current increases, resulting in transistor-type anticoupling oscillation. The circuit is tuned to start. Therefore, when the transistor-type anti-coupling oscillation circuit is activated, the output of the transistor-type anti-coupling oscillation circuit is applied to the base of the next-stage transistor Tr2 via the coupling capacitor C1, thereby making the transistor Tr2 conductive. Due to the conduction of the transistor Tr2, the detection signal 5C becomes L'' as shown in FIG.

FIG. 4 is a circuit diagram showing details of the abnormality detection circuit 5d of the contact sensor 5, in which 5g is a NOT gate and 5h is a 1
This is a timer that counts and outputs the time while the "H" signal is input to the point. When the "H" signal is input to the R point, the content is reset to zero and output. 51 and 5j
is a comparator that outputs two points "H" only when the input signal at point X≧the input signal at point Y, and 5 and 51 are constant times TI (=1 second) and T2 (=3 seconds), respectively. 5m is a memory consisting of a flip-flop, and when a ``H'' signal is input to the R point, the contents are stored.
10a is a reset signal that becomes H'' when the reset button 10 is pressed.

Figure 5 shows an elevator operating device 8 that operates from the 1st to the 5th floor.
FIG. (+), <-) are control power supplies, 31.32 are normally open contacts that close when the abnormal signal 5f force N'''H'' is reached, and 61 to 65 are 1 to 5, respectively.
Position switch that closes when there is a predetermined range K above or below the floor, 11 to 75 are call contacts that close when a call for the 1st to 5th floor is registered, 80 corresponds to the deceleration distance before the car reaches the predetermined floor A stop decision contact that instantly closes when approaching 90G'! A running relay contact that remains closed when the car is being operated up and down, 100 a stop decision relay that decelerates and stops the car when energized, 100a and 100b its normally open contacts, and 110 near the car floor. A door zone switch 111 is closed when the door is stopped and the door is in a position where there is no danger; 111 is a door open relay contact that is closed for a predetermined time to keep the door open for people to get on and off; 120 is energized; 120a is a normally open contact of the door opening relay which opens the door by opening the door.

In the elevator security device configured as described above, the contact sensor 5 normally does not operate, so the warning signal 5e and the abnormality < w 5f are L”. Therefore, the warning device 6, the security camera 9, and the alarm device Since neither T is activated and the normally open contact 31 remains open, the car will not come to an emergency stop at the nearest floor.

Next, we will discuss the case where a passenger commits a crime inside the car.

Passenger A, who has a capacitance C, gets on the car and detects the detection end 5.
Even if you hold the handrail that is in the position of A, it will be C as shown in Figure 6.
, <Co, so the detection signal 5C remains 'H'. Passenger B with capacitance Cb gets on board, and passenger A
Suppose you touch the body of

At this time, the detection terminal 5a detects the capacitance of C, +Cb>Co, so the detection signal 5C is "L" as shown in FIG.
Therefore, in the abnormality detection circuit 5d, the output power of the NOT gate 5g becomes H'', so the timer 5h starts counting the time.If passenger B simply passes passenger A for a moment, the duration of the output of the timer 5h becomes 1. (Fig. 7) is smaller than the fixed time TI (=1 second), the outputs of the comparators 51 and 5j remain at L'', so the warning signal 5e and the abnormal signal 5f4. It is impossible for K to reach ``H''.If Passenger B were to touch the passenger's body and cause harm, the output of the timer 5h would exceed T1 for a certain period of time, and at that time the comparator 51 The output, that is, the warning signal 5e becomes 'H', and the warning device 6 emits an intermittent sound from the speaker 6a to warn passenger B. At the same time, the security camera 9 is activated to monitor the situation inside the car and passenger B. Record the face, etc. If passenger B ignores the warning and continues to cause harm, and the output of the timer 5h exceeds the fixed time T1, the output of the comparator 5j becomes 'H', the memory 5m is set to 'W', and the abnormal signal 5f is set to 'W'. It is output at 'H'. Therefore, the alarm device T is activated to notify the manager that the passenger has committed a crime, and the warning device 6 emits a continuous sound through the speaker 6a to inform the inside of the car that an abnormal inflow of the pipe has been reported. Also, since the abnormal signal 5f becomes 'W', the normally open contact 3
1 is closed, and when the car comes to a distance equivalent to the deceleration distance from the nearest floor, the stop determining contact 80 is closed. Therefore, the stop decision relay 100 is connected to the power supply (+) - normally open contact 31 -
Stop decision contact 80 - Stop decision relay 100 - Power supply (-)
Since the travel relay contact 90 is closed, it is self-maintained. When the stop determination relay 100 is energized, the car is decelerated and stopped by a well-known deceleration device (not shown). Midway door zone switch 11
V-120, which opens the door when 0 is closed, is energized by the power supply (+) - normally open contact 100b - door zone switch 110 - door open relay 120 - power supply (-) circuit, and then the power supply (+
) - Normally open contact 120a - Door open relay contact 111 or normally open contact 32 - Door open relay 120 - Power supply (-) self-maintaining circuit. The door opens by energizing the door opening relay 120. When the car stops, running relay contact 90 is opened, so stop determination relay 100 is deenergized and its normally open contact 100b is opened. In addition, door open relay contact 11
1 is also opened after a predetermined period of time has passed after the door is opened. However, since the normally open contact 32 is closed, the door opening relay M120 continues to be energized. By pressing the reset button 10 afterward, the reset signal 1Oa becomes 'H', the contents of memory 5 are reset to 'L', and the abnormal signal 5f! i becomes “L”. When the abnormality signal 5f becomes 'L', the normally open contact 32 is opened, and the door opening relay 120 is deenergized to close the door.Then, the elevator operating system [18] returns to its normal state.

In addition, in the above embodiment, if another person comes into contact with the passenger's body,
Although the abnormal approach is detected by an increase in the capacitance of the passenger, the sensor for detecting the contact of another person with the passenger's body or the abnormal approach is not limited to this. Ray of light.

A sensor that detects contact or approach by ultrasonic waves, image processing using an industrial television camera, mud switch, etc. may be used. Further, although the above-mentioned sensor is provided in the car, a portable sensor may also be used. In this case, the transmitter built into the portable sensor can transmit an abnormal signal (441) as a vague airborne signal to activate the security control device.

Further, in the above embodiment, a warning device 6 as a crime prevention control device,
An alarm device 7, a security camera 9, an elevator operating device that stops at the nearest floor [8, etc.] were used, but any device that is intended for crime prevention, such as an operating device that stops at each floor or calls back to a specific floor, may be used. Anything is fine.

Further, in the above embodiment, the warning device 6 emits an intermittent sound when warning is issued, and a continuous sound when an abnormality occurs, but the display form is not limited to this. Alternatively, a voice warning or an alarm may be issued.

As explained above, the elevator security device according to the present invention includes a sensor that detects when another passenger comes into contact with or abnormally approaches a passenger's body, and a security control device that operates in response to the output of this sensor. The system is extremely superior in that it can detect abnormalities and take necessary crime prevention actions even if passengers are deprived of their physical freedom or are physically bound due to fear. have an effect.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present invention, as seen inside the elevator car from the opposite side of the entrance/exit, Fig. 2 is a boot stock circuit diagram of an embodiment of the invention, and Fig. 3 is a contact detection circuit diagram of the contact sensor in Fig. 2, Fig. 4 is an abnormality detection circuit diagram of the contact sensor, Fig. 5 is also a circuit diagram of the elevator operation device, and Fig. 6 is a contact detection circuit diagram of the contact sensor shown in Fig. 3. FIG. 7 is a diagram for explaining the operation of the sensor and a time chart for explaining the operation of the elevator security device. In the figure, 1 is the side wall of the car, 2 is the car door, 3 is the car operation panel, 4 is the foot position indicator, 5 is the contact sensor, 6 is the warning device, 1 is the alarm device, 8 is the elevator operating device, 9 is a security camera, and 10 is a reset button. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Nobu Kuzu - (1 other person) Fig. 1 Fig. 2 505 - Fig. 3 Fig. 4 Fig. 7 Fig. 5 Dan ÷ Procedural amendment 58 (auto) 16 Showa Year Month Date Mr. Commissioner of the Patent Office 1. Indication of the case Japanese Patent Application No. 57-205004 2. Name of the invention Elevator security device 3. Person making the amendment Relationship to the case Patent applicant representative Hitoshi Katayama Department 4, Agent 5. Details subject to amendment Detailed description of the invention in the book, Drawing 6, Contents of amendment (1) Page 4 of the specification, lines 18-1'j, ``Figures 1 and 2 show one embodiment of this invention. ," will be deleted. (2) Similarly, on page 5, lines 10 to 11, [signal level is H°
"°" is corrected to "signal level is ""L"J. (3) Similarly, in lines 15 and 16 of page 5, "the detection signal 50 is for a predetermined time T2 > T, (for example, 3 seconds) or more" is changed to "the detection signal 5C is for a predetermined time T2 (T2>TI, for example, T2=
3 seconds) or more.” Te4) Also correct the "Block circuit diagram" and "Circuit diagram" on page 8, line 7. (5) Similarly, on page 10, lines 19-20, "if passenger A's body is a passenger" is corrected to "if passenger B's body is passenger A's body". :8) Similarly, "Pipe inflow" on page 11, line 13, "Administrator"
and correct it. (7) Figures 1, 3, 4, and 5 of the drawings. And Figure 6 is corrected as shown in the attached sheet. Above Figure 1 Figure 3 Figure 4 Figure 6

Claims (7)

[Claims] (1) An elevator characterized in that it is equipped with a sensor that detects the contact or abnormal approach of another passenger to the body of a passenger, and a security control device that is activated in response to the output of this sensor. Security device. (2) The security device for an elevator as set forth in claim (1), wherein a sensor that detects an increase in capacitance possessed by a passenger is used as the sensor. (3) Claims (1) or (2) characterized in that a sensor is used that is installed at a predetermined location within the car and is available for use by any passenger. Elevator security device as described in section. (4) The security device for an elevator according to any one of claims 11 to (3), characterized in that the security control device uses an alarm device that is activated in response to the senna. (5) The crime prevention control device according to any one of claims (1) to (3), characterized in that a nearest floor stop operation device that operates in response to a sensor is used. Elevator security device. (6) The elevator security device according to any one of claims 11 to (3), characterized in that the security control device is a security camera that operates in response to a sensor. (7) Crime prevention for an elevator according to any one of claims (1) to (3), characterized in that the crime prevention control device is a stop operation device for each floor that operates in response to a sensor. Device.