JPS6166955A - In-cage urination detecting device of elevator - Google Patents

Abstract

PURPOSE:To prevent urination by providing a couple of electrodes in a case room and detecting whether the resistance value between those electrodes is within a specific range. CONSTITUTION:If urine is discharged in the cage room, the electrodes 1a and 1b are short-circuited with the urine and the resistance value increases to about 100-150kOMEGA, so that both comparators A and B outputs a signal H. Consequently, an AND element also outputs a signal H and a delay timer 11 clocks the time. When the rise in resistance value caused by the urine is maintained normally for about two sec, so the delay timer 11 outputs the signal H about two sec later and a transistor 14 is turn on with this signal H to energize a relay 15, thereby making both normally open contacts 15a and 15b. Thus, the contact 15a is made to allow a buzzer 3 to sound and attract attention, and the contact 15b is made to put a connector 4 in operation, thereby informing a caretaker that the urine is discharged automatically through a telephone 5. Thus, urination is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an in-car urine detection device for preventing urination in an elevator car.

[Conventional technology]

In apartment complexes without communal toilets and elevators in multi-tenant buildings where there are many drunk customers, people sometimes urinate in the elevator cars. Conventionally, there was no means to prevent such urination, and it was left up to each person's awareness.

[Problem that the invention seeks to solve]

By the way, there is a certain limit to what can be left to one's own self-awareness, and it is even more impossible to expect a drunk customer to be self-conscious, so urination has been carried out in the car. As a result, a foul odor pervaded the inside of the basket, resulting in unsanitary conditions. Also.

If left untreated, the cage floor and walls would corrode and be dangerous.

The purpose of this invention is to prevent urination inside the cage.

[Means for solving problems]

The in-car urine detection device for an elevator according to the present invention is such that an electrode is provided in the car, and an alarm is activated when the electrode shows a specific resistance value when covered with urine.

[Effect]

The in-car urine detection device for an elevator according to the present invention includes:
When urination occurs in the cage, the alarm is activated, which not only surprises the person who urinates, but also makes the person aware of it and makes him feel embarrassed, which acts to prevent future urination.

[Embodiments of the invention]

1 to 3 show an embodiment of this invention.

First, in Figure 1, l (1a) and (1b) are a pair of electrodes attached in parallel to the text in the car compartment, and (2) is when the resistance value between these electrodes (1a) and (1b) is within a predetermined range. A detector (3) that outputs a high level signal (hereinafter referred to as signal H. Also, a low level signal is referred to as signal) is installed in the car, and when the $ detector (2) outputs signal H, A buzzer is used in this embodiment. (4
) is a connector that activates the telephone (5) in the manager's room when the detector (2) outputs a signal H.

It tells you that you are urinating.

Next, in FIG. 2, 1) is a normal source and normally 5 volts are adopted. (RNl), (RN2) are directly connected distribution resistors + (RLl), ("L2) are also distribution resistors, (R) has one end grounded and the other end connected to the electrode (1a
), (C) is a capacitor connected in parallel to resistor R, (A) is a non-inverting terminal connected to the distribution resistor (
This is a comparator connected between RN, ) and (RN2), and the inverting terminal is connected to electrode (1a)K. In (B), the non-inverting terminal is the electrode (1a) and the inverting terminal is the distribution resistor (RLl).

(RL2). (Ra) and (Rb) are the positive power supply (G), the comparator (A), and the comparator (B).
), OI is AN
The D element all is a delay timer that counts clock pulses from the oscillator o3, and when the signal H from the AND element 6ri is input, it outputs the signal H two seconds later. 0 is a resistor connected to the output terminal of the delay timer aυ, O( is a transistor whose base is connected to this resistor 03 and whose emitter is grounded,
Q! 9 is a relay connected to the collector of transistor a41, (15a) is a normally open contact of this relay 0!9, which operates the buzzer (31). (15b) is also a normally open contact, which operates the connector (4). let

In Figures 3 and 4, ■ is the car room, Qυ is the car door that opens and closes the entrance to the car room (a), (c) the base,
(c) is a side wall erected on this car floor (2), 24 is a baseboard glued to the lower end of this side wall (c), and is provided around the entire circumference of the car door excluding the entrance area. , basket room (a)
Electrodes (1a) and (1b) are coated with a film in two grooves that open inward. (c) is a reinforcing material that reinforces the baseboard Q4 from the outside of the car door.

By the way, the distance between the electrodes (1a) and (1b) is 50 mm, and the flow rate is 50 mm at a flow rate of 110 cubic centimeters per second.
Adult urine about a millimeter in size is used as an electrode (1a) (1b)
It is known that the resistance between electrodes (1a) and (1b) is 100 kilohms to 150 kilohms. 250 for tap water with the same flow meter and flow diameter
It is from kilo ohm to 300 kilo ohm. Also, if there is a short circuit caused by a piece of metal, it will be zero.

On the other hand, in Fig. 2, the voltage of the positive power supply (7) is set to V volts, and the resistance value between the electrodes (1a) and (1b) is set to the R1 resistor (
RNl), (RN2), (RLl), (RL2
) and (Rp) as RNl 'RN
2'RL1'RL2' Rp.

At this time, the comparator (A) outputs a Vi signal H.

At this time, the comparator (A) outputs a signal.

At this time, the comparator (B) outputs the signal IQ.

At this time, the comparator (B) outputs a signal.

Therefore, comparators (A) and (BJ) both output signals H when the tl1 equation and equation (3) are simultaneously established, and the following equation is calculated from this.

Now to detect only urine.

has been selected.

Next, we will discuss the operation.

Assuming that no urine is being urinated, the resistance lid R between the electrodes (1a) and (1b) is equal to infinity. Therefore 1
Equations 11 and (4) are established, and the comparator (B) outputs a signal. Therefore, the output of the AND element Q (i) becomes a signal, and the output of the old delay timer also remains a signal, and the transistor (14) becomes non-conductive.

Therefore, the buzzer (3) and telephone (5) do not operate.

Next, if the electrodes (la) and (1b) are short-circuited with a metal piece, the resistance value R is #? E' becomes zero. For this reason.

Equations (2) and (3) are established, and the output of the comparator (A) becomes a signal. Therefore, similar to the above, the buzzer (3) and telephone (5) do not operate.

Next, suppose that the 'Iff poles (1a) and (1b) are short-circuited by urine. At this time, the resistance value R becomes 100 kilohms to 150 kilohms, equations (1) and (3) are established, and comparators (A), I, and (B) all output signals H.

Therefore, the output of the AND element Ql also becomes a signal).

Delay timer +111 counts time. In the case of urine, the state is normally maintained for 2 seconds or more, so the signal H is output from the delay timer 01) after 2 seconds have elapsed. Transistor 00 is made conductive by this signal H, and relay tl! 9 is energized, and both normally open contacts (15a) and (15b) are closed. Closing of the contact (15a) causes the buzzer (3) to sound, giving a warning. Also, the contact (15b) activates the contact device (4), which automatically reports f1 to the manager via the telephone (5) that urination is being urinated.

In addition, even if the resistance value R happens to be between 100 kΩ and 150 kΩ, if this state continues for less than 2 seconds, the delay timer (lυ) will not output the signal H, so the buzzer (
3) etc. do not work. Such conditions are usually not caused by urine, but by mischief or accidental phenomena, which should be prevented.

〔Effect of the invention〕

As described above, according to the present invention, a pair of electrodes is provided in the car compartment, and the bone alarm device is activated when it is detected that the resistance value t (resistance) between the electrodes is within a predetermined range. So,
The person who urinates will feel embarrassed by this news, and if a third party notices it, he will feel embarrassed, and this will have the effect of preventing him from urinating in the future.

[Brief explanation of drawings]

1 to 4 show an embodiment of this invention. Figure 1 is an overall configuration diagram, Figure 2 is an electrical circuit diagram of the main parts, Figure 3 is a cross-sectional view of the car compartment, and Figure 4 is Figure 3 IV-IV.
There is a picture of a purebred. In the figure + (1a) and (1b) are electrodes, (2) is detection p
, f3) is the bell (W alarm), and (a) is the car room. Note that the same group numbers in Figure 1 indicate the same or equivalent parts.

Claims (1)

[Claims] The interior of an elevator car consists of a pair of electrodes installed on the inside of the car, a detector that detects whether the resistance value between the electrodes is within a predetermined range, and an alarm that is activated by the detection signal of this detector. Urine detection device.