CN1052039A

CN1052039A - Electronic paper diaper

Info

Publication number: CN1052039A
Application number: CN 89108823
Authority: CN
Inventors: 钟汝祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-11-23
Filing date: 1989-11-23
Publication date: 1991-06-12

Abstract

A kind of baby of being used for and mistake consciousness patient can detect the electronic paper diaper that relieves oneself, and it comprises acousto-optic newspaper showing device that an electronic logic detects, connected paper napkin that are equipped with soft electrode.But when relieving oneself with the person with the soft electrode eliminating dampness by diuresis then the newspaper of trigger flashing and the sound show.

Description

Electronic paper diaper

The present invention relates to a kind of diaper, relate in particular to the electronic paper diaper that the newspaper showing device of electronic logic circuit was surveyed and contained in just urine examination.

In order to improve the serviceability of diaper, people have done many structural improvement to diaper.As disposable diapers, multilamellar diaper etc., they have improved the hygroscopicity and the barrier properties of diaper greatly.But this class diaper can not make the nursing staff in time find the situation that diaper is polluted by dung urine, so that diaper user buttocks is immersed in for a long time skin infection easily takes place in the urine, in order to overcome this problem, the present invention proposes the electronic paper diaper that a kind of detection of electrons newspaper shows, it can in time send the pollution condition that diaper is subjected to dung urine to the nursing staff.

The object of the present invention is to provide a kind of baby and lose the electronic paper diaper that the consciousness patient uses.The soft electrode of this device of eliminating dampness by diuresis is that the newspaper of the trigger flashing and the sound shows after relieving oneself with the person, but this user reduces the pollution of being urinated by dung, useful sanitation and hygiene.

Another object of the present invention is to provide a kind of electronic paper diaper that volume is little, simple in structure, safe and reliable, the electronics of the working stability of power consumptive province is just urinated the newspaper showing device that has.

A kind of electronic paper diaper provided by the present invention comprises detection of electrons newspaper showing device, the paper napkin and the soft electrode that is placed in the described paper napkin, and described detection of electrons newspaper showing device detects by described soft electrode.The hurried decline of its resistance value after user relieves oneself the described soft electrode of eliminating dampness by diuresis and trigger flashing and sound newspaper show.

Advantage of the present invention is can in time send diaper to the nursing staff whether to be subjected to the information that dung urine pollutes.

Another advantage of the present invention is that the electronic paper diaper that is provided newspaper showing device with low cost, employed volume is little, simple in structure, working stability is reliable, safe in utilization.

Describe most preferred embodiment of the present invention with reference to the accompanying drawings in detail.

Fig. 1 is the electrical schematic diagram of electronic paper diaper.

Among Fig. 1, detection of electrons newspaper showing device comprises detection resistance [R ₃], with described detection resistance [R ₃] multivibrator that is connected, the phase inverter that links to each other with this multivibrator, the driving switch circuit that links to each other with this phase inverter and the light emitting diode and the buzzer that link to each other with described driving switch circuit.

Promptly the first elongated conductive film and the second elongated conductive film are attached on the corresponding insulation paper and form soft electrode [A] by two elongated conductive films, it is placed in the interlayer of the paper napkin, its first elongated conductive film links to each other with power positive end (DC3-5 volt) through on and off switch [K] by elongated insulated conductor, and the second elongated conductive film is by elongated insulated conductor of another root and detection resistance [R ₃] the upper end link to each other, detect resistance [R ₃] the other end be lower end ground connection.Resistance between two conductive films of power supply (DC3-5 volt), soft electrode [A] and detect resistance [R like this ₃] three connects and form to detect the loop, when no dung urine soaks soft electrode [A], resistance is very big between two thin film of soft electrode [A], therefore the upper end of detecting resistance [R] be in electronegative potential (near " and " level), when dung urine soaks, resistance makes and detects resistance [R because of the rapid drawdown of making moist of insulating paper therebetween between this two thin film ₃] go up terminal potential and rise to high potential (level"1").

Multivibrator is by three NAND gate circuits [1,2,3] and capacitor [C ₁], resistance [R ₂, R ₁] form.Its concrete connection is resistance [R ₁] the termination input of going into NAND gate [1], the outfan of NAND gate [1] inserts an input of NAND gate [2], another input of NAND gate [2] and above-mentioned detection resistance [R ₃] the upper end link to each other, this end is the control input end of multivibrator.The outfan of NAND gate [2], capacitor [C ₁] an end, NAND gate [3] input, and NAND gate [4] be that four end points of input of phase inverter link together, this end is the outfan of multivibrator, the outfan of NAND gate [3] and resistance [R ₂] an end link to each other resistance [R ₂] the other end, the other end and the resistance [R of capacitor [C] ₁] the other end three ends be connected.When detecting resistance [R ₃] when the upper end was electronegative potential, then the outfan of NAND gate [2] was locked on the high level (level"1").This level makes an input of NAND gate [2] also keep high level by NAND gate [3], NAND gate [1].When detecting resistance [R ₃] upper end is when being high potential (during level"1"), two inputs of NAND gate [2] are high level, and its outfan is " 0 " current potential, NAND gate [3] outfan high potential then, capacitor [C ₁] reverse charging, capacitor [C ₁] go up terminal potential with [C ₁], [R ₂] time constant slowly rise, as capacitor [C ₁] then high level, NAND gate [3] output low level, capacitor [C were got back in NAND gate [1] output low level, NAND gate [2] output again when upward terminal potential rose to level"1" ₁] changing positive charge again into, terminal potential transfers decline on it, when it reduces to level "0", then makes capacitor [C again by NAND gate [1,2] ₁] reverse charging, so continuous repetition said process forms the multi-harmonic-oscillations of multivibrator.Above-mentioned NAND gate [1,3] should connect into and only play not gate.

Phase inverter is made up of NAND gate circuit [4], and connects into and only play not gate, and its input links to each other with the outfan of above-mentioned multivibrator, its outfan and driving switch circuit [G ₁] input be that base stage links to each other.Its function plays buffer action, makes the vibration of multivibrator not influenced by the work of warning circuit.

Driving switch circuit [G ₁] be the power door circuit, be connected to light emitting diode [LED] and current-limiting resistance [R thereof on its colelctor electrode ₄] branch road and the branch road of buzzer [B], two branch road parallel connections.As driving switch circuit [G ₁] luminous and buzzer [B] sounding of light emitting diode [LED] then during conducting.

Now the work process with electronic paper diaper is summarized as follows:

1. when no dung urine, the paper napkin [T] drying, the resistance between two conductive films of soft electrode [A] very big (＞＞R ₃), so detect resistance [R ₃] on get very small voltage, its upper end is close to earth potential, then NAND gate [2] is blocked, its output maintains on the high level, phase inverter [4] output electronegative potential, driving switch circuit [G ₁] being cut-off state, light emitting diode [LED] does not work, buzzer [B] does not ring.

2. when dung is urinated, it is wet that diaper [T] becomes, the insulating paper between two conductive films of the soft electrode in the interlayer [A] make moist make resistance rapid drawdown between two conductive films (＜＜R ₃), so detect resistance [R ₃] to get voltage very big, high potential appears in its upper end, then NAND gate [2] is opened, multivibrator is with the natural frequency generation multi-harmonic-oscillations of himself, because the buffer action of NAND gate [2], this frequency of oscillation is not subjected to the humidity effect of the paper napkin, and half cycle be high potential, half cycle is an electronegative potential with this vibration in the output of phase inverter [4], same driving switch [G ₁] half cycle conducting, half cycle end with the cycle of oscillation of multivibrator, then light emitting diode [LED] and buzzer are followed this frequency of oscillation and are synchronously glistened and sounding, send warning information to the relevant personnel.

The ohmically change in voltage of above-mentioned detection is to make its controlled oscillation by gate input multivibrator, so system works is not urinated the wet influence that changes, control stable (non-" 0 " i.e. is " 1 ").

In this multivibrator: it is necessary having only with detecting the NAND gate [2] that resistance [R] links to each other, and the also available nor gate of all the other NAND gate [1,2] or use not gate in addition to the implementation, also can have the connected mode of other various ways.

The paper napkin are made up of water absorption strong, flexible two to multiwalled paper and cloth, and its shape, size, thickness then have diversified specification, if any slim, thick type, and little sign indicating number, middle sign indicating number, big sign indicating number etc.Be primarily characterized in that above-mentioned soft electrode is located in the interlayer of the paper napkin.Because it is with low cost, does disposable use.

The active device of multivibrator, phase inverter are formed by the electronic logic gate circuit, so circuit constitutes simple, few also little, the power consumptive province of volume of element.

Complete machine uses the logical circuit power voltage of 3-5 volt direct current to make voltage source, and is therefore safe to use.

It is that the output of multivibrator is to promote the flash of light and the sound by a buffer inverter by gate input multivibrator that detection has or not the ohmically potential change of the detection of urine.Above-mentioned gate and phase inverter play the buffer action of input and output, therefore make system works stable, and can not make the frequency of oscillation of multivibrator and work be subjected to the influence in its input and output loop.

Claims

1, a kind of electronic paper diaper, its feature comprises: detection of electrons newspaper showing device; The paper napkin; Be placed in the soft electrode in the described paper napkin; Described detection of electrons newspaper showing device detects by described soft electrode, and after user relieved oneself the described soft electrode of eliminating dampness by diuresis, the newspaper that triggers the described detection of electrons newspaper showing device flash of light and the sound showed.

2, electronic paper diaper according to claim 1 is characterized in that described detection of electrons newspaper showing device comprises the detection resistance that links to each other with described soft electrode, the multivibrator that is connected with described detection resistance, the phase inverter that links to each other with this multivibrator, the driving switch circuit that links to each other with this phase inverter and the light emitting diode and the buzzer that link to each other with described driving switch circuit.

3, electronic paper diaper according to claim 2 is characterized in that the active device in the described multivibrator is made up of the electronic logic gate circuit, and described phase inverter is an electronic logic gate circuit.

4, electronic paper diaper according to claim 1 is characterized in that the described paper napkin are made up of water absorption strong, flexible two to multiwalled paper and cloth, is provided with described soft electrode in its interlayer.

5, electronic paper diaper according to claim 1, it is characterized in that described soft electrode is made up of the first elongated conductive film, the second elongated conductive film, bibulous insulating paper, the described first elongated conductive film and the described second elongated conductive film are attached to respectively on the described insulating paper.

6, according to claim 3,5 described electronic paper diapers, the first elongated conductive film that it is characterized in that described soft electrode can link to each other with supply voltage by the insulation thin wire, the described second elongated conductive film links to each other with described detection resistance one end, this links to each other on the input of the described electronic logic door that inserts described multivibrator again, described detection resistance other end ground connection, sort circuit connects to be made when described soft electrode is in drying regime, described detection resistance one end be in " " current potential, make described multivibrator be in the failure of oscillation state, when soft electrode is in dampness, described detection resistance one end is in " height " current potential, makes described multivibrator be in the oscillating alarm state.

7,, it is characterized in that described multivibrator is made up of three electronic logic doors, two resistance, a capacitor according to claim 1,2 described electronic paper diapers.