JP2007240505A - Wetting detector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a precise wetting detector capable of detecting instantaneously wetting in a chair, a seat or the like along over a deep portion, capable of reducing a burden for a worker, capable of reducing a personal error, excellent in safety, operability and workability, and allowing continuous use at real time. <P>SOLUTION: A hollow cylindrical beam built in with an electric power source part 6 is connected to a unit substrate 11 assembled integrally with a detecting plate 7 installed with a sensor part 2, a comparator part 3, a sensitivity regulation part 4 and an alarm part 5, to be operable while grasped by a hand, the wetting in the chair, the seat or the like is detected instantaneously at the real time to be notified by a light, a sound or vibration. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to the function of a wetness detection device.

  Conventionally, as shown in FIG. 5, a wetness detection device for detecting water and moisture is equipped with a sensor tape 14a on a diaper 15 to wait for urination and the like. When water and moisture A are detected, a receiver 14c is connected via a transmitter 14b. The information is transmitted to the caregiver and is notified to the caregiver by the buzzer 14d. The caregiver's dignity is protected, the cleanliness is improved, the comfort is improved, and the mental and physical burden of the caregiver is further reduced. As a result, it has become widespread in the medical and nursing fields. In recent years, sensor technology has been remarkably developed, and wetness detection devices are one of them.

  However, according to the above technology, it is limited to medical and nursing care equipment that is worn on the diaper 15 in anticipation of getting wet by water or moisture due to urination, etc., so it can be used in vehicles, hotels, theaters, etc. It is powerless to detect the wetness of chairs and seats provided in real time continuously, and it is difficult for tentacles to detect deep parts such as chairs and seats. There were variations, and there was a risk of injury from broken pieces of needles, glass, metal, etc., and it was easy to get back pain because the body was bent.

  Therefore, the present invention can instantly detect the wetness of a chair, seat, etc. to a deep part, is highly accurate, can reduce the burden on the worker, has few individual differences, is excellent in safety, operability and workability, and is real-time. Another object is to provide a wetness detection device that can be used continuously.

  In order to solve the above problems, the first invention is a wetness detection device having a sensor unit, a comparator unit, and an alarm unit, and the resistance value of the sensor unit changes when water or moisture adheres thereto. It is an electrode, the comparator unit changes the resistance value into a voltage, and outputs a detection signal compared with a reference voltage. The alarm unit accepts the detection signal, sound, light, vibration, etc. The sensor unit is connected to the input side of the comparator unit, and the alarm unit is connected to the output side of the comparator unit. And a wetness detection device, wherein the alarm unit is integrated into a substrate and unitized, and is built in a hollow cylindrical basket.

  Further, the second invention is a wetting detection device having a sensitivity adjustment unit, the sensitivity adjustment unit is a variable resistor that adjusts the sensitivity by adjusting the reference voltage, and is integrated into the comparator unit. Wetting detection device characterized by being.

  Further, the third invention is a wetting detection device having a power supply unit, and the power supply unit is built in a hollow cylindrical basket together with a substrate in which a comparator unit and an alarm unit are integrated as a unit. Wetting detection device characterized by being.

  According to a fourth aspect of the present invention, there is provided a printed circuit board having a pattern in which comb-like teeth are alternately faced and meshed with electrodes.

  According to a fifth aspect of the present invention, there is provided a wetness detection apparatus characterized in that the detection plate and the cylindrical rod are integrally connected to be portable.

  According to a sixth aspect of the present invention, there is provided a wetting detection device characterized in that the detection plate and the cylindrical rod that are integrally connected so as to be portable are held and operated.

  According to the first invention, the sensor unit is installed on the detection plate, and the comparator unit and the alarm unit are unitized and integrated into the substrate and built in the hollow cylindrical cage, and the size and shape can be freely adjusted. Since it can be made compact, it is easy to use and excellent in versatility, and the alarm unit is informed by sound, light and vibration, so it is highly recognizable and can respond quickly and has excellent workability.

  According to the second aspect of the invention, the sensitivity adjustment unit can adjust the sensitivity by freely adjusting the reference voltage, so that it can be adjusted deeply in the chair, seat, etc. without being affected by the environment such as season, weather, time, place, etc. Therefore, it is highly accurate and reliable.

  According to the third invention, the fifth invention, and the sixth invention, the power source is built in the cylindrical bag and connected to the detection plate, and is provided so that it can be carried anywhere and anytime, so it has excellent mobility and is handy. It is safe because it can be operated by hand and does not touch the seat directly.

  According to the fourth aspect of the invention, since the entire surface of the electrode functions as a sensor by using a printed circuit board in which comb-like teeth are alternately faced and meshed with the electrode, the work efficiency is good and the cost is low. Economical.

One embodiment of the present invention is shown in FIG. 1, FIG. 2, FIG. 3, and FIG.
This wetness detection device is made of metal, and as shown in FIGS. 1, 2, and 4, the sensor unit 2 is connected to the input side of the comparator unit 3, and the alarm unit 5 is connected to the comparator unit 3. Connected to the output side, the sensor unit 2 is installed at the tip 8 of the detection plate 7, and the comparator unit 3, sensitivity adjustment unit 4, and alarm unit 5 are integrated into the unit substrate 11 together with the power supply unit 6 and a hollow cylinder. The unit lid 12 and the battery lid 13 are provided in the bag 10 and the detection plate 7 and the cylindrical bag 10 are connected to each other at the overlapping portion 9.

  Further, as shown in FIG. 3, when the sensor part 2 is attached with water, moisture or the like between the electrodes 2b and 2c having a pattern in which comb-like teeth are alternately faced and meshed with the printed circuit board 2a, The resistance value changes depending on the conductivity, and water, moisture, and the like are detected using this property.

  Further, as shown in FIG. 4, the comparator unit 3 converts the change in resistance value generated in the sensor unit 2 into a voltage E1 by the conversion circuit 3a and compares it with the reference voltage E0 adjusted by the sensitivity adjustment unit 4. When the voltage E1 decreases, the detection signal 3d is output from the amplifier circuit 3c.

  Further, as shown in FIGS. 1, 2, and 4, the sensitivity adjustment unit 4 adjusts the reference voltage E0 by adjusting the variable resistor 4b incorporated in the comparator unit 3 with a knob 4a, and thereby water, moisture It is designed to efficiently detect the state of the camera in accordance with changes in the environment.

  As shown in FIGS. 1, 2, and 4, the alarm unit 5 notifies the detection signal 3 d with light and sound by the LED 5 a and the buzzer 5 b installed on the unit substrate 11.

  In addition, as shown in FIGS. 1 and 2, the power supply unit has a power switch 6a and a power lamp 6b installed on the unit substrate 11, and batteries 6c, 6d, and 6e are built in a hollow cylindrical basket, and the sensor unit 2, Electric energy is supplied to the comparator unit 3, the sensitivity adjustment unit 4, and the alarm unit. As mentioned above, although this invention was demonstrated according to the Example, this invention is not limited to such an Example, In the range which does not deviate from the summary of this invention, it can implement variously.

Effects of the embodiment

  According to this embodiment, this wetness detection apparatus is compact, and the detection plate on which the sensor unit is installed, the comparator unit, the sensitivity adjustment unit, and the alarm unit are integrated as a unit on the board and are hollow together with the power supply unit. Since it is built in and connected to a cylindrical cage, it is easy to use in any size and shape. It can be carried anywhere and anytime, and it is easy to move. Since it does not touch the seat surface directly, it is safe without being injured by needles, glass, metal, etc., and it does not bend the waist, so it does not easily cause back pain, and the sensor part is a printed circuit board, so it is inexpensive and economical. Is.

  In addition, the sensitivity adjustment unit can adjust the sensitivity by freely adjusting the reference voltage, so it can detect deeply in chairs, seats, etc. without being affected by the environment such as season, weather, time, place, etc. It is high in reliability and excellent in reliability and versatility because wetness of vehicles, chairs, seats, etc. installed in unspecified people can be detected instantaneously in real time.

Other embodiments

  In the embodiment of FIGS. 1 and 2, metal is used for the detection plate 3 and the cylindrical rod 10, but in other embodiments, FRP or the like may be used.

  1, 2 and 4, the alarm unit 5 is provided with the LED 5a and the buzzer 5b. In other embodiments, the LED 5a, the buzzer 5b, and the vibrator are used individually or in combination. It may be provided.

  In the embodiment of FIG. 2, the sensor unit 2 is installed at the tip 8 of the detection plate 7. However, in other embodiments, the sensor unit 2 may be installed freely on the entire surface of the detection plate.

  In the embodiment of FIG. 3, the sensor unit 2 is provided with electrodes having a pattern in which comb-like teeth are alternately faced and meshed, but in other embodiments, a pattern having a spiral shape or the like may be provided. .

  In the embodiment of FIG. 3, the printed circuit board 2a is used for the electrodes, but in other embodiments, a film or a printed circuit board may be used.

  In the embodiment of FIGS. 1 and 2, the cylindrical rod 10 is provided in a fixed length, but in other embodiments, it may be provided so as to be stretchable.

  In the embodiment of FIGS. 1 and 2, the detection plate 7 and the cylindrical rod 10 are integrally connected. However, in other embodiments, the detection plate 7 and the cylindrical rod 10 may be provided so as to be foldable.

  In the embodiment of FIGS. 1 and 2, the sensor unit 2 is provided on the detection plate 7. However, in another embodiment, the sensor unit 2 may be provided on a nozzle of a vacuum cleaner or the like.

  In the embodiment of FIGS. 1 and 2, the wetness detection device 1 is used for a chair, a seat, and the like, but in other embodiments, it may be used for clothes and the like.

  In the embodiment of FIGS. 1 and 2, the wetness detection device 1 is provided alone. However, in other embodiments, the wetness detection device 1 may be provided in combination with a cleaning tool such as a scissors.

  It is a top view of the wetness detection apparatus concerning one Embodiment of this invention.   It is a side view of the wetness detection apparatus concerning one Embodiment of this invention.   It is a sensor electrode pattern figure of the wetness detection apparatus concerning one Embodiment of this invention.   It is an operation | movement flowchart of the wetting detection apparatus concerning one Embodiment of this invention.   It is a conventional wetness detection device functional explanatory diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wetting detection apparatus 2 Sensor part 3 Comparator part 4 Sensitivity adjustment part 5 Alarm part 6 Power supply part 7 Detection board 8 Sensor installation part 9 Overlapping part 10 Cylindrical rod 11 Board | substrate 12 Unit cover 13 Battery cover 14 Conventional wetness detection apparatus 15 Diaper

Claims (6)

A wetting detection device having a sensor unit, a comparator unit, and an alarm unit,
The sensor part is an electrode whose resistance changes when water or moisture adheres to it.
The comparator unit changes the resistance value to a voltage and outputs a detection signal compared with a reference voltage.
The alarm part receives the detection signal and emits sound, light, vibration, etc., and notifies it,
The sensor unit is connected to the input side of the comparator unit, and the alarm unit is connected to the output side of the comparator unit, so that the sensor unit is installed on the detection plate, and the comparator unit and the alarm unit are integrated with the board. A wetting detection device characterized by being incorporated into a unit and built in a hollow cylindrical basket. A wetting detection device having a sensitivity adjustment unit,
The wetness detection device according to claim 1, wherein the sensitivity adjustment unit is a variable resistor that adjusts the sensitivity by adjusting the reference voltage, and is integrated into the comparator unit. A wetness detection device having a power supply unit,
The wetting detection device according to claim 1, wherein the power supply unit is built in a hollow cylindrical basket together with a substrate in which the comparator unit and the alarm unit are unitized and integrated.   The wetting detection device according to claim 1, wherein the electrode is a printed board having a pattern in which comb-like teeth are alternately faced and meshed.   The wetting detection device according to claim 1, wherein the detection plate and the cylindrical rod are integrally connected to be portable.   6. The wetness detection device according to claim 5, wherein the detection plate and the cylindrical rod connected so as to be portable are held and operated.

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