JP2006349418A - Ic tag, wet detecting system using it and wet detecting diaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an IC tag capable of certainly detecting the wet states of various regions caused in general living, a wet detecting system capable of taking flexible correspondence corresponding to the wet state detected by the IC tag and a wet detecting diaper capable of easily detecting the wet state while reducing the load of a wearer using the IC tag. <P>SOLUTION: The wet detecting system 10 has an IC chip in which predetermined data is stored, the IC tag 30 having the antenna coil for contactless communication electrically connected to the IC chip to transmit the data to a predetermined device through a predetermined external antenna 20 and the external antenna 20 and is equipped with a detector 40 for detecting the wet state of a region where the IC tag 30 is mounted on the basis of the data transmitted from the IC tag 30 through the external antenna 20 or the receiving state thereof. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an IC tag that can detect a wet state, a wetness detection system that detects the wet state of various parts using the IC tag, and a wettability using an IC tag that can detect the wet state Regarding detection diapers.

  In recent years, hygiene in all situations has been reviewed in order to protect and promote health and to prevent and treat diseases. In particular, in hospitals and facilities where there are sick people, or in general households where infants and elderly people with poor immunity are in the works, it is sought to keep the state and environment clean throughout life. For example, in hospitals and facilities, there are many physically handicapped persons, and it has become essential to change diapers or replace underwear for the prevention and treatment of diseases. In other words, if there is a period of time when the diaper is not changed despite the presence of manure, or a period of time when the underwear is not changed despite a large amount of sweating, a side effect such as mold, rash, coldness, and bed slipping will occur. This is because it causes the following symptoms. In general households, it is indispensable to replace the diapers of elderly people and infants or regularly ventilate the room in order to maintain hygiene and health.

  However, changing diapers or changing underwear has been an extremely burdensome task for caregivers and the like. That is, there are very large differences between individuals in the presence or absence of manure or the discharge of sweat, and the time zone and frequency are also different. In addition, even when the room is regularly ventilated, it is assumed that the room condition is constantly monitored, which is a heavy burden.

  From the situation described above, the wet state of various parts that occur in general life is detected, and the clean state and environment are maintained, so that particularly sick people, elderly people, infants, etc. can live comfortably. Construction of a simple system was desired.

  In addition, as techniques relating to wetting detection, for example, a diaper capable of detecting wetting that is easy to handle and can be manufactured continuously at low cost (see Patent Document 1), and a hygienic device that uses an LC resonance tag with echo waves of the LC resonance tag A sanitary sensor system (see Patent Document 2) that detects dirt on goods has been proposed, but any of them requires attaching another device directly to the diaper or sanitary goods, so the burden on the wearer's body Was big. In addition, since all the techniques are exclusively for detecting feces and urine, it has not been possible to detect the wet state of every part that occurs in general life according to the situation.

JP 2005-052663 A JP 2001-134726 A

  In view of such circumstances, the present invention can take a flexible response according to an IC tag that can reliably detect the wet state of various parts that occur in general life, and the wet state detected by the IC tag. It is an object of the present invention to provide a wetness detection diaper that can easily detect a wet state while reducing the burden on the wearer using the wetness detection system and the IC tag.

  A first aspect of the present invention that solves the above-described problems includes at least an IC chip storing predetermined information and a non-contact communication antenna coil electrically connected to the IC chip, and an external antenna. In the IC tag that transmits information to the external antenna in a non-contact manner when the electromotive force of the antenna coil for non-contact communication via a radio wave transmitted from is triggered, the non-contact communication antenna coil When receiving a radio wave from the external antenna and generating power, it transmits an identification number for identifying itself stored in the IC chip, while it is wet when it becomes wet The IC tag is characterized in that it transmits a signal indicating the above or does not transmit its own identification number.

  In the first aspect, when the non-contact communication antenna coil receives a radio wave from the external antenna and generates power, an identification number for identifying itself stored in the IC chip is transmitted. When it becomes wet, a signal indicating that it is wet is transmitted or its own identification number is not transmitted. Thereby, the wet state of various parts which generate | occur | produce in general life can be reliably detected based on the transmitted information or its reception state.

  According to a second aspect of the present invention, in the first aspect, the apparatus further comprises a wetting detection terminal that is electrically connected to the IC chip and detects a wetting state from a change in voltage value. An IC tag is characterized by transmitting a signal indicating a wet state when the voltage falls below the rated value, and transmitting a signal indicating a dry state when the voltage of the wetness detection terminal exceeds the rated value. is there.

  In the second aspect, a signal indicating a wet state is transmitted when the voltage of the wetness detection terminal is equal to or lower than the rated value, while a signal indicating a dry state is transmitted when the voltage exceeds the rated value. Thereby, a state can be grasped | ascertained based on the signal transmitted, for example, the wet state of the various site | parts which generate | occur | produce in general life can be detected reliably.

  According to a third aspect of the present invention, in the first aspect, the apparatus further comprises a wetting detection terminal that is electrically connected to the non-contact communication antenna coil and detects a wetting state by a short circuit. The IC tag is characterized in that when the detection terminal is short-circuited, it cannot receive power within the IC chip and therefore does not transmit an identification number by electromotive force.

  In the third aspect, when the wetness detection terminal is short-circuited in the wet state, the IC chip is not received power and the identification number by electromotive force is not transmitted. Thereby, a wet state can be grasped | ascertained based on the reception state of information, for example, the wet state of the various site | parts which generate | occur | produce in general life can be detected reliably.

  According to a fourth aspect of the present invention, at least an IC chip storing predetermined information and a non-transmission of information to a predetermined device via a predetermined external antenna by being electrically connected to the IC chip. An IC tag having an antenna coil for contact communication and the external antenna, and a portion of the part where the IC tag is mounted based on information transmitted from the IC tag via the external antenna or its reception state A wetness detection system comprising a detection device for detecting a wet state.

  In the fourth aspect, the wet state of the part to which the IC tag is attached is detected based on the information transmitted from the IC tag or the reception state thereof. As a result, by attaching the IC tag to the site where the wet state is desired to be detected, the wet state of various sites that occur in general life can be reliably detected.

  According to a fifth aspect of the present invention, in the fourth aspect, the IC tag includes information indicating a wet state or information indicating a dry state in accordance with a change in voltage value of a wetness detection terminal connected to the IC chip. It is in the wetting detection system characterized by transmitting any of the above.

  In the fifth aspect, information indicating either a wet state or a dry state is transmitted according to the fluctuation of the voltage value. Thereby, the wet state of various parts can be reliably detected based on information transmitted from the IC tag.

  A sixth aspect of the present invention is the wetness detection system according to the fourth aspect, wherein the IC tag transmits information in a normal state and does not transmit information in a wet state.

  In the sixth aspect, information is transmitted in a normal state and information is not transmitted in a wet state. Thereby, the wet state of various parts can be reliably detected based on the reception state of information transmitted from the IC tag.

  According to a seventh aspect of the present invention, in any one of the fourth to sixth aspects, the detection device is connected to a management computer that manages a wet state detected by the IC tag. A wetness detection system is characterized by instructing a response corresponding to a detected wetness state.

  In the seventh aspect, a response corresponding to the detected wet state is instructed. Thereby, it becomes possible to take a flexible response appropriately according to the detected wet state of various parts.

  An eighth aspect of the present invention provides the method according to any one of the fourth to seventh aspects, wherein when the IC tag is incorporated in a diaper, the detection device detects a wet state of the IC tag. The management computer is in the wetness detection system characterized by instructing replacement of the diaper.

  In the eighth aspect, when the wet state of the diaper is detected, replacement of the diaper is instructed. This makes it possible to accurately detect the presence or absence of feces and urine. For example, it is possible to prevent mold, rashes, chills, bed slips, and the like caused by delays in changing diapers.

  According to a ninth aspect of the present invention, in any one of the fourth to eighth aspects, when the IC tag is attached to the underwear as the part, the detection device detects a wet state of the IC tag. Furthermore, the management computer is in a wetness detection system characterized by instructing replacement of the underwear.

  In the ninth aspect, when the wet state of the underwear is detected, the replacement of the underwear is instructed. Thereby, since the presence or absence of sweating can be accurately detected, it is possible to prevent, for example, mold, rash, cold, bed slip, and the like caused by delays in changing the underwear.

  According to a tenth aspect of the present invention, in any one of the fourth to ninth aspects, when the IC tag is installed as any one of a wall, a window, and a floor, the detection device is the IC. In the wetness detection system, when the wet state of the tag is detected, the management computer instructs ventilation of the site and its surroundings.

  In the tenth aspect, when a wet state of any one of the wall, the window, and the floor is detected, ventilation of the part and the surrounding area is instructed. Thereby, generation | occurrence | production of mold | fungi, mites, etc. can be prevented and it becomes possible to keep indoor environment clean.

  According to an eleventh aspect of the present invention, in the tenth aspect, when the IC tag is wet and does not transmit information, and when the detection device receives information from the IC tag, the management computer The wetness detection system is characterized in that it judges that the IC tag has recovered to a normal state and instructs to stop ventilation.

  In the eleventh aspect, when the detection device receives information from the IC tag, an instruction to stop ventilation is given. Thereby, for example, indoor ventilation can be appropriately performed based on the wet state of the room.

  According to a twelfth aspect of the present invention, there is provided an IC chip storing predetermined information and a non-contact communication antenna for transmitting information to the outside through a predetermined external antenna by being electrically connected to the IC chip. By incorporating an IC tag having a coil at least at a predetermined position where feces and urine can be detected, the wet state is determined based on whether radio waves transmitted from the external antenna can be received or whether a predetermined identification number can be transmitted. It exists in the wetness detection diaper characterized by detecting.

  In the twelfth aspect, the IC tag is incorporated at least in a predetermined position where feces and urine can be detected, so that the radio wave transmitted from the external antenna can be received or the predetermined identification number can be transmitted. A wet state is detected. Thereby, the diaper which can detect a wet state easily can be provided.

  A thirteenth aspect of the present invention is the wetness detection diaper according to the twelfth aspect, wherein the IC tag does not transmit information using the radio wave in a wet state.

  In the thirteenth aspect, information is not transmitted using radio waves in a wet state. Thereby, it can be set as the diaper which can detect a wet state reliably and easily by the presence or absence of communication.

  A fourteenth aspect of the present invention is a wetness detection diaper according to the twelfth aspect, wherein the IC tag transmits an identification number indicating a wet state in a wet state.

  In the fourteenth aspect, in the wet state, an identification number indicating the wet state is transmitted. Thereby, it can be set as the diaper which can detect a wet state reliably and easily by the content of the identification number.

  According to the present invention, the wet state of various parts that occur in general life can be detected by detecting the wet state of the part to which the IC tag is attached based on the information transmitted from the IC tag or the reception state thereof. It is possible to provide an IC tag that can be reliably detected, and a wetting detection system that can flexibly respond to the detected wetting state. In addition, by incorporating the above-described IC tag into a diaper, it is possible to provide a wetness detection diaper that can easily detect a wet state while reducing the burden on the wearer.

  The best mode for carrying out the present invention will be described below with reference to the drawings. The description of the present embodiment is an exemplification, and the configuration of the present invention is not limited to the following description.

  In this embodiment, first, two types of IC tags will be described as examples of IC tags that can reliably detect the wet state of various parts that occur in daily life. These IC tags are referred to as a first IC tag and a second IC tag in the following description.

  FIG. 1 is a block diagram showing an outline of a circuit configuration of a first IC tag according to an embodiment of the present invention.

  As shown in FIG. 1, the first IC tag 30a has at least an IC chip 31 storing predetermined information and a non-contact communication antenna coil 32 electrically connected to the IC chip 31. When the electromotive force of the non-contact communication antenna coil 32 is generated using a radio wave transmitted from the external antenna as a trigger, information is transmitted to the external antenna in a non-contact manner. As such an IC chip 31, for example, a 3 to 5 mm square chip microcomputer generally used in RFID (Radio Frequency Identification) having a power supply 34, a control unit 35, and a signal unit 36 is assumed. Therefore, detailed description is omitted. The non-contact communication antenna coil 32 described above is, for example, a dielectric coil having an antenna function that is connected via two capacitors C connected in series.

  In the present embodiment, the IC tag 30a as described above further includes a wetting detection terminal 33 that is electrically connected to the IC chip 31 and detects a wetting state from a change in voltage value, thereby enabling non-contact communication. When the antenna coil 32 receives a radio wave from an external antenna and generates power, the antenna coil 32 transmits an identification number for identifying itself stored in the IC chip 31, while being wet when the antenna coil 32 is wet. It operates to transmit a signal indicating that Here, as a signal indicating the wet state, for example, bit information composed of bits or another identification number indicating a wet state different from the above-described identification number can be cited. In the present embodiment, the wetting detection terminal 33 is electrically connected through the resistor R in the IC chip 31.

  Thus, for example, when the voltage of the wetness detection terminal 33 becomes lower than the rated value in the wet state, a signal indicating the wet state is transmitted, while the voltage of the wetness detection terminal 33 exceeds the rated value. A signal indicating the dry state is transmitted. Here, similarly, the signal indicating the dry state can include, for example, bit information composed of bits or other identification numbers indicating the dry state. Further, when an identification number is adopted as a signal indicating a dry state, for example, an identification number for identifying itself transmitted in a normal state may be used, or another identification number may be used. Good.

  Here, a specific operation of the above-described IC tag 30a will be described. FIG. 2 is a flowchart showing an operation example of the IC tag 30a according to the embodiment of the present invention. The reader shown in FIG. 2 corresponds to the detection device 40 or 40a exemplified in FIGS. 4 to 6 in the following description.

  First, when a voltage is applied to an antenna coil (corresponding to an external antenna 20 described later) of the reader and energization is performed (S1), the IC tag 30a is energized via the non-contact communication antenna coil 32. At this time, in the IC tag 30a, it is confirmed whether or not power is received by the IC chip 31 (S2). When the power is received (S3; Yes), the state of the voltage value of the wetting detection terminal 33 is confirmed (S4). Here, when the wetting detection terminal 33 exceeds the rated value (S5; High), it is determined that it is in a dry state, and a signal indicating the dry state is transmitted (S6). In the present embodiment, it is assumed that the upper bits of the entire signal are output as a signal indicating the dry state. At this time, an identification number for identifying itself may be transmitted as an identification number indicating a dry state. On the other hand, when the wetness detection terminal 33 is equal to or lower than the rated value (S5; Low), it is determined that the wetness state is present, and a signal indicating the wetness state is transmitted (S7). In the present embodiment, it is assumed that the lower bits of the entire signal are output as a signal indicating a wet state. At this time, an identification number indicating a wet state may be transmitted.

  On the other hand, the reader having applied power to the IC tag 30a waits for a signal notified from the IC tag 30a (S8). If there is a notification (S8; Yes), the signal is determined (S9). At this time, if the signal is an upper bit, it is determined that the notification indicates a dry state (S10). At this time, for example, the reader may emit a blue lamp so that the nurse operating the reader can know that the reader is dry. If the signal is a lower bit, it is determined that the notification indicates a wet state (S11). At this time, for example, the reader may emit a red lamp or sound an alarm so that a nurse operating the reader can know that the reader is wet.

  In step S8, for example, when there is no notification even after 3 seconds have passed (S12; Yes), it is determined that there is an abnormality in the IC tag 30a, and that fact is notified (S13).

  Next, the second IC tag will be described. FIG. 3 is a block diagram showing an outline of the circuit configuration of the second IC tag according to the embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the member same as the member shown in FIG. 1, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 3, the second IC tag 30b is electrically connected to at least the IC chip 31 storing predetermined information and the IC chip 31 in the same manner as the first IC tag 30a. A non-contact communication antenna coil 32. When the electromotive force of the non-contact communication antenna coil 32 via a radio wave transmitted from an external antenna is triggered as a trigger, information is transmitted in a non-contact manner. Send to antenna.

  In the present embodiment, the IC tag 30b as described above further includes a wetness detection terminal 33 that is electrically connected to the non-contact communication antenna coil 32 and detects a wet state by short-circuiting. When the non-contact communication antenna coil 32 receives a radio wave from an external antenna and generates power, it transmits an identification number for identifying itself stored in the IC chip 31 and becomes wet. In some cases, it does not send its own identification number.

  Specifically, when the wetness detection terminal 33 is short-circuited in a wet state, the identification number by electromotive force is not transmitted because the IC chip 31 cannot receive power. That is, when the contactless communication antenna coil 32 gets wet and the wetting detection terminal 33 is short-circuited, the resistance value is lost between the terminals, and the IC chip 31 is not received without being applied to the capacitor C shown in the figure. In addition, the IC tag 30b cannot transmit information. Therefore, for example, when the IC tag 30b is not wet, if a voltage is applied to an antenna such as a reader, the IC chip 31 receives power and transmits an identification number. Therefore, the IC tag 30b itself does not operate.

  Here, a wetting detection system to which the above-described IC tags 30a and 30b are applied will be described. In the following description, a general term for the IC tags 30a and 30b will be referred to as an IC tag 30.

  FIG. 4 is a diagram showing a system configuration of a wetting detection system according to an embodiment of the present invention. In this embodiment, the case where the wet state of the part of the sick room or the part of the sick person spending in the sick room is detected is illustrated.

  As shown in the figure, the wetness detection system 10 includes an external antenna 20, an IC tag 30, a detection device 40, and a management computer 50. Here, the IC tag 30 is attached to various parts serving as points for detecting a wet state. For example, in the present embodiment, it is conceivable to attach to any part where condensation is likely to occur, such as a wall, window, or floor of a hospital room, or to a sick person's diaper or underwear.

  The IC tag 30 is used for non-contact communication that transmits information to the detection device 40 via the external antenna 20 by being electrically connected to at least the IC chip 31 storing predetermined information and the IC chip 31. An antenna coil 32 is provided. Examples of the IC tag 30 mentioned here include two types of sensors.

  1st IC tag 30a mentioned above can be mentioned as a sensor of the type which transmits the signal or identification number which shows that it is in a wet state when it becomes wet first. In this case, for example, in a dry state, which is a normal state, when the non-contact communication antenna coil 32 receives a radio wave emitted from the external antenna 20 and generates power, the generated power is used as a trigger for predetermined bit information or identification. A number is transmitted, but when wet, bit information or an identification number indicating that is transmitted. With such an action, the wet state can be detected with the change of the bit information or the identification number.

  Secondly, the above-described second IC tag 30b can be given as a sensor that transmits information in a normal state and does not transmit information in a wet state. In this case, for example, when the IC tag 30b is attached to a sick person's diaper or underwear, the transmission is interrupted when the IC tag 30b gets wet due to excrement or sweating. Using such an action, for example, the presence or absence of feces and urine of a sick person or the presence or absence of sweat is detected as a wet state.

  The detection device 40 has an external antenna 20 and detects a wet state of a part to which the IC tag 30 is attached based on information transmitted from the IC tag 30 via the external antenna 20 or a reception state thereof. To do. Here, the external antenna 20 may be provided inside the detection device 40, but may of course be provided separately outside. In this case, the external antenna 20 is connected to the detection device 40 via a dedicated line. The detection device 40 is connected to a management computer 50 described later. Thereby, for example, when the IC tag 30 is attached to a plurality of parts, the wet state detected for each IC tag 30 can be managed. Such a detection device 40 may be, for example, an information communication device having a display, or a rug type device having the above-described function capable of detecting a wet state as a minimum. There may be.

  The management computer 50 manages the wet state detected by the IC tag 30 and instructs a response corresponding to the wet state detected by each IC tag 30. Specifically, when the IC tag 30 is incorporated in a diaper and the detection device 40 detects a wet state of the IC tag 30, the management computer 50 displays the diaper attached to the IC tag 30. Instruct the exchange. Further, when the IC tag 30 is attached to the underwear as a part and the detection device 40 detects the wet state of the IC tag 30, the management computer 50 determines the underwear attached to the IC tag 30. Instruct replacement. In addition, when the IC tag 30 is installed as a part on any of a wall, a window, and a floor, when the detection device 40 detects a wet state of the IC tag 30, the management computer 50 displays the IC tag. Instructs the ventilation of the part attached to 30 and the surroundings of the part. In this case, for example, when the IC tag 30 is in a wet state and does not transmit information, and the detection device 40 receives information from the IC tag 30, the management computer 50 determines that the IC tag 30 is normally Judging that the condition has been recovered, instruct to stop ventilation. The ventilation instruction may be performed by automatically operating the air conditioning equipment by connecting the management computer 50 to the air conditioning equipment or the like, for example.

  With the configuration as described above, the detection device 40 detects the wet state of the part to which the IC tag 30 is attached, and, for example, according to the wet state of the part detected by the detection device 40, for example, changing diapers and underwear Actions to be taken, such as replacement and patient room ventilation, will be instructed.

  In the example shown in FIG. 4, the detection device 40 and the management computer 50 are provided independently. However, the present invention is not limited to this. For example, the device 40A in which the functions of the detection device 40 and the management computer 50 are integrated. May be provided.

  Here, the diaper 60 with the IC tag 30 applicable in the wetness detection system 10 will be described. FIG. 5 is a diagram illustrating an example of a usage pattern of a wetness detection diaper according to an embodiment of the present invention.

  In the example shown in FIG. 5, the IC tag 30 is incorporated in the urine collecting pad 61 of the diaper 60. Here, the diaper 60 is assumed to be a normal disposable paper diaper used for nursing care and childcare, for example. On the other hand, the urine pad 61 is assumed to be composed of a water-absorbing material. Examples of such a material include a superabsorbent polymer.

  As described above, the diaper 60 includes an IC chip 31 storing predetermined information and an antenna coil for non-contact communication that transmits information to the outside via the external antenna 20 by being electrically connected to the IC chip 31. The IC tag 30 having 32 detects a wet state based on whether or not radio waves transmitted from the external antenna 20 can be received in a state where the IC tag 30 is incorporated at a predetermined position where feces and urine can be detected. The IC tag 30 in this case is a first IC tag 30a of a type that transmits a signal indicating a wet state or an identification number, or a second IC tag 30b of a type that does not transmit information using radio waves in the wet state. Any one may be used as a wetness detection sensor.

  In the example shown in FIG. 5A, the external antenna 20 is provided on the entire lower portion of the rug 70, and the external antenna 20 is connected to the detection device 40. With such a usage pattern, for example, when a sick person wearing the diaper 60 dung on the rug 70, the detection device 40 detects the wet state. That is, the state in which the diaper 60 is wet due to excreta is transmitted from the IC tag 30 incorporated in the urine collecting pad 61 of the diaper 60 by discontinuing transmission of information to the detection device 40 or by transmitting a signal or identification number indicating a wet state. Is detected.

  In the example shown in FIG. 5B, the detection device 40 having the external antenna 20 inside is connected to the alarm device 41. According to such a usage pattern, for example, when an infant or the like wearing a diaper 60 dung in a range where radio waves from the external antenna 20 can be received, a wet state is detected by the detection device 40 and at the same time an alarm device 41 Is emitted. That is, the state in which the diaper 60 is wet due to excreta is transmitted from the IC tag 30 incorporated in the urine collecting pad 61 of the diaper 60 by discontinuing transmission of information to the detection device 40 or by transmitting a signal or identification number indicating a wet state. Is detected, and the occurrence of feces and urine can be known from the light emitted from the alarm device 41.

  The diaper 60 described above can detect a wet state in a wireless state without being directly connected to the detection device 40. By attaching such a diaper 60 to a sick person, an elderly person, an infant, etc., the burden on the wearer can be reduced.

  In addition, in the example shown in FIG. 5, although it is suitable for the usage form for childcare that does not hinder even if the wet state is confirmed directly, for example, as a suitable example for the usage form for nursing care, A usage pattern as shown in FIG. 6 is conceivable. In FIG. 6, the same members as those shown in FIG.

  Similarly, in the example shown in FIG. 6, the IC tag 30 is incorporated in the urine pad 61 of the diaper 60. The IC tag 30 in this case is either a first IC tag 30a that transmits a signal indicating a wet state or an identification number, or a second IC tag 30b that does not transmit information using radio waves in the wet state. One of them may be incorporated as a wetness detection sensor.

  In the example shown in FIG. 6A, a handy type detection device 40a having either one of the IC tags 30a and 30b incorporated in the urine pad 61 of the diaper 60 and having the external antenna 20 therein is shown. The wet state can be detected by one IC tag 30 by holding the detection device 40a over the diaper 60. At this time, when the wet state is detected, the light emitter 42 emits light. For example, a nurse who operates the detection device 40a has the diaper 60 wet due to the presence or absence of light emission or a change in light emission color. You can know whether or not. In other words, the signal emitted from the IC tag 30 incorporated in the urine pad 61 of the diaper 60 to the detection device 40 is interrupted or a signal or an identification number indicating a wet state is transmitted, so that the light emitter 42 has a predetermined color. And the wet state of the diaper 60 by manure is detected. Thereby, the diaper 60 which can detect wet effectively for the elderly etc. who dislike to know the wet state of the diaper 60 with respect to the irrelevant surrounding person can be provided.

  In the example shown in FIG. 6A, when the IC tag 30b is adopted as the IC tag 30, information is not transmitted in a wet state. For example, information is not transmitted due to a detection failure such as a failure or the like. Since it is wet, it may not be possible to objectively and reliably detect whether information is transmitted. Therefore, a usage pattern as shown in FIG.

  In the example shown in FIG. 6B, an IC tag 30b and another type of IC tag 30 (for example, a normal IC tag that transmits its own identification number at the time of power generation; hereinafter referred to as an IC tag 30c) are combined. A handy-type detection device 40a that is incorporated in the urine pad 61 of the diaper 60 and that has the external antenna 20 therein is shown. Different types 2 can be obtained by holding the detection device 40a over the diaper 60. One IC tag 30 can detect a wet state. At this time, by changing the wavelength of the IC tag 30 so that communication radio waves do not interfere with each other, the wet state may be reliably detected without interference of information from the two IC tags 30. In this case, for example, when identification numbers indicating themselves are received from both the IC tags 30b and 30c, it is detected that the normal state is not yet wet. Further, for example, when the transmission of information from the IC tag 30b attenuates and an identification number indicating itself is received from only the IC tag 30c, it is detected that the medium is wet. For example, when transmission of information from both the IC tags 30b and 30c is interrupted, it is detected that the IC tag 30b and 30c are completely wet.

  Thus, with only one IC tag 30, it may be difficult to reliably determine the current state of whether it is really wet or how wet it is due to a situation such as detection failure or radio wave attenuation. However, by applying two different types of IC tags 30 as described above, the wet state of the diaper 60 can be reliably detected objectively.

  In the example shown in FIG. 6B, the IC tag 30c is incorporated into the urine pad 61 of the diaper 60 together with the IC tag 30b. For example, the IC tag 30c is disposed around the waist of the diaper 60 or the diaper 60. You may make it wear on nearby clothes. As a result, it is possible to prevent a situation in which information is not transmitted due to a detection failure such as a failure.

  By the above-mentioned form, it is effective for care for an elderly person who dislikes that the wet state of the diaper 60 is not known to surrounding people who are not related, or an elderly person who dislikes that the wet state is directly confirmed. It can be a diaper 60.

  In the example shown in FIGS. 5 and 6, the usage form in which the IC tag 30 is incorporated in the diaper 60 is illustrated, but it can be similarly applied to underwear.

  Next, an operation procedure of the wetting detection system 10 will be described. FIG. 7 is a flowchart showing a processing procedure of the wetting detection system according to the embodiment of the present invention. The example shown in FIG. 7 is a process executed mainly by the management computer 50. The IC tag 30 transmits bit information or an identification number indicating its own wet state when the wet state is detected. Although the case where the second IC tag 30b is used as a sensor is illustrated, the IC tag 30a and 30b are collectively referred to as the IC tag 30 in the following description.

  As shown in the figure, when the detection device 40 detects the wet state of the part to which the IC tag 30 is attached, the management computer 50 displays the identification number of the IC tag 30 that has detected the wet state transmitted from the detection device 40. Is received (S21). Then, based on the received information, it is determined which part the IC tag 30 is attached to. That is, the part where the IC tag 30 is attached is specified from the identification number indicated in the received information, and the management computer 50 instructs the management according to the part.

  Here, when the identification number indicated in the received information identifies the IC tag 30 attached to the diaper, that is, the detected wet state is from the IC tag 30 attached to the diaper. In the case (S22; Yes), it is considered that there was manure and diaper replacement is instructed (S23). After the instruction to replace the diaper is completed, the process may be terminated as it is. For example, when the received information includes an identification number from another IC tag 30, the processes after step S24 are performed. Can be executed continuously.

  On the other hand, when the detected wet state is not due to the IC tag 30 attached to the diaper (S22; No), the identification number indicated in the received information identifies the IC tag 30 attached to the underwear. It is determined whether it is a thing (S24). Here, when the identification number indicated in the received information identifies the IC tag 30 attached to the underwear, that is, the detected wet state is due to the IC tag 30 attached to the underwear. In the case (S24; Yes), it is considered that there has been sweating, and replacement of the underwear is instructed (S25). After the instruction to replace the underwear is completed, the process may be terminated as it is. For example, when the received information includes an identification number from another IC tag 30, the steps after step S26 are performed. What is necessary is just to perform a process continuously.

  On the other hand, when the detected wet state is not due to the IC tag 30 attached to the undergarment (S24; No), the identification number indicated in the received information is any one of the wall, window, and floor of the hospital room. It is determined whether or not the IC tag 30 attached to is identified (S26). Here, when the identification number indicated in the received information identifies the IC tag 30 attached to any one of the wall, window, and floor of the room, that is, the detected wet state is the wall of the room, If it is from the IC tag 30 attached to either the window or the floor (S26; Yes), it is considered that condensation has occurred and ventilation of the patient room is instructed (S27).

  On the other hand, when the detected wet state is not due to the IC tag 30 attached to any of the wall, window, and floor of the hospital room (S26; No), the received information includes a predetermined identification number. It is determined whether or not it is (S28). Then, if the received information includes a predetermined identification number (S28; Yes), the process is terminated assuming that the information is not information indicating the detection of the wet state.

  If the received information does not include a predetermined identification number (S28; No), it is assumed that the received information cannot identify the IC tag 30, and error processing is executed (S29). . The error processing here may be, for example, outputting an instruction for confirming whether there is any abnormality in the condition of a hospital room or a sick person.

  Note that the various instructions in steps S23, S25, and S27 may be performed by, for example, sounding an alarm, or may be notified to the nurse in charge.

  Through the processing as described above, the wet state of various parts such as a hospital room, a diaper, and an underwear is detected, and an appropriate response is instructed according to the detected part. As a result, for example, it is possible to prevent secondary symptoms such as mold, rash, chill, and bed slip that occur due to delays in changing diapers or changing underwear. In addition, since the room can be ventilated at an appropriate time, it is possible to prevent the occurrence of mold, mites, etc., and to keep the room environment clean.

  As described above, in the present embodiment, it is possible to take a fine response according to the environment and the individual while reliably managing the wet state of various parts that differ depending on the environment and the individual. Then, by using the IC tag 30 capable of transmitting the identification number for detection of the wet state, the detection device 40 or the management computer 50 can reliably specify which part of the wet state is detected. it can. Thereby, it becomes possible to prevent a secondary symptom caused by a change in diaper or a change in underwear while grasping a site where the wet state has occurred at an early stage. In addition, since the patient room can be appropriately ventilated, the indoor environment can be kept clean.

  As mentioned above, although one Embodiment of this invention was described, the fundamental structure of this invention is not limited to what was mentioned above.

  In the wetness detection system 10 described above, the case where it is applied to one hospital room at the same time is exemplified, but for example, a system capable of detecting the wet state of a necessary part at home, facility, etc. may be applied individually. . That is, it may not be possible to comprehensively detect the wet state of a hospital room (room), diaper, and underwear, and may be applied as a system that can individually detect each wet state as necessary.

  Further, the above-described wetting detection system 10 is not limited to use in medical facilities and elderly care facilities. For example, the same system may be applied to home nursing homes, and in home care / nursing services, communication systems such as the Internet can be used to establish systems such as facilities and service companies. It may be possible to flexibly cope with the detected wet state by cooperating.

It is a block diagram showing the outline of the circuit composition of the 1st IC tag concerning one embodiment of the present invention. It is a flowchart which shows the operation example of the 1st IC tag which concerns on one Embodiment of this invention. It is a block diagram which shows the outline of the circuit structure of the 2nd IC tag which concerns on one Embodiment of this invention. It is a figure which shows the system configuration | structure of the wetting detection system which concerns on one Embodiment of this invention. It is a figure which shows an example of the usage pattern of the wetness detection diaper which concerns on one Embodiment of this invention. It is a figure which shows an example of the usage pattern of the wetness detection diaper which concerns on one Embodiment of this invention. It is a flowchart which shows the process sequence of the wetting detection system which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 External antenna 30 (30a, 30b, 30c) IC tag 31 IC chip 32 Antenna coil for non-contact communication 33 Wet detection terminal 34 Power supply 35 Control part 36 Signal part 40 (40a) Detection apparatus 41 Alarm 42 Light emitter 50 Management computer 60 diapers 61 urine pad 70 rug

Claims (14)

An antenna for non-contact communication via radio waves transmitted from an external antenna, having at least an IC chip storing predetermined information and an antenna coil for non-contact communication electrically connected to the IC chip In an IC tag that transmits information to the external antenna in a non-contact manner when power is generated using a coil electromotive force as a trigger,
When the non-contact communication antenna coil receives a radio wave from the external antenna and generates electricity, it transmits an identification number for identifying itself stored in the IC chip, while being in a wet state. An IC tag that transmits a signal indicating that it is in a wet state or does not transmit its own identification number. 2. The apparatus according to claim 1, further comprising a wetting detection terminal that is electrically connected to the IC chip and detects a wetting state based on a change in voltage value, and is wet when the voltage of the wetting detection terminal becomes equal to or lower than a rated value. An IC tag characterized by transmitting a signal indicating a dry state when the voltage of the wetness detection terminal exceeds a rated value while transmitting a signal indicating the state. 2. The IC chip according to claim 1, further comprising a wetting detection terminal that is electrically connected to the non-contact communication antenna coil and detects a wetting state by short-circuiting, and when the wetting detection terminal is short-circuited. An IC tag characterized in that an identification number by electromotive force is not transmitted because power cannot be received within the IC tag. An IC tag having at least an IC chip storing predetermined information, and an antenna coil for non-contact communication that is electrically connected to the IC chip and transmits information to a predetermined device via a predetermined external antenna When,
And a detection device that includes the external antenna and detects a wet state of a part to which the IC tag is attached based on information transmitted from the IC tag via the external antenna or a reception state thereof. Wetting detection system characterized by that. 5. The IC tag according to claim 4, wherein the IC tag transmits either information indicating a wet state or information indicating a dry state in accordance with a change in a voltage value of a wetness detection terminal connected to the IC chip. Wetting detection system. 5. The wetting detection system according to claim 4, wherein the IC tag transmits information in a normal state and does not transmit information in a wet state. 7. The detection device according to claim 4, wherein the detection device is connected to a management computer that manages a wet state detected by the IC tag, and the management computer instructs a response according to the detected wet state. Wetting detection system characterized by In any one of Claims 4-7, when the said detection apparatus detects the wet state in the said IC tag, when the said IC tag is integrated in the diaper, the said management computer will instruct | indicate the replacement | exchange of the said diaper Wetting detection system characterized by In any one of Claims 4-8, when the said detection apparatus detects the wet state in the said IC tag, when the said IC tag is mounted | worn with the said part as the said part, the said management computer is the said underwear. A wetness detection system characterized by instructing replacement. In any one of claims 4 to 9, when the IC tag is installed on any of a wall, a window, and a floor as the part, when the detection device detects a wet state in the IC tag, The wetness detection system, wherein the management computer instructs ventilation of the part and its surroundings. 11. The information management device according to claim 10, wherein when the IC tag is in a wet state and does not transmit information, and the detection device receives information from the IC tag, the management computer recovers the IC tag to a normal state. The wetting detection system is characterized by instructing the suspension of ventilation. An IC tag having an IC chip that stores predetermined information and a non-contact communication antenna coil that is electrically connected to the IC chip and transmits information to the outside via a predetermined external antenna Wetting detection characterized by detecting a wetting state based on whether a radio wave transmitted from the external antenna can be received or whether a predetermined identification number can be transmitted by being incorporated in a predetermined position that can be detected Diapers. The wet detection diaper according to claim 12, wherein the IC tag does not transmit information using the radio wave in a wet state. 13. The wetness detection diaper according to claim 12, wherein the IC tag transmits an identification number indicating a wet state in a wet state.

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