CN102222257A - UHF and HF frequency band tags for urine sensor and urination detecting system - Google Patents

UHF and HF frequency band tags for urine sensor and urination detecting system Download PDF

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Publication number
CN102222257A
CN102222257A CN2011100945869A CN201110094586A CN102222257A CN 102222257 A CN102222257 A CN 102222257A CN 2011100945869 A CN2011100945869 A CN 2011100945869A CN 201110094586 A CN201110094586 A CN 201110094586A CN 102222257 A CN102222257 A CN 102222257A
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mentioned
frequency band
urine
tag
urine sensor
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Chinese (zh)
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福岛幸裕
西田秀行
永井定夫
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PROWITTON CO Ltd
Omura Technology Co Ltd
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PROWITTON CO Ltd
Omura Technology Co Ltd
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Priority claimed from JP2010226849A external-priority patent/JP4815643B1/en
Application filed by PROWITTON CO Ltd, Omura Technology Co Ltd filed Critical PROWITTON CO Ltd
Publication of CN102222257A publication Critical patent/CN102222257A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G06K19/0726Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement including a circuit for tuning the resonance frequency of an antenna on the record carrier
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0716Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

The invention provides a UHF and HF frequency band IC tags for a urine sensor and a urination detecting system, which can clearly identify whether there is urine all around and then make erroneous operation decreased and reliability improved. The UHF or HF frequency band IC tag which comprises an IC chip (4) and an antenna circuit is communicated with a reader by tuning the resonant wavelength of the antenna circuit to a specified wavelength. A part of a circle (1b) formed on the antenna circuit for impedance match or a part of a circle (2e) formed on the antenna circuit for non-impedance match is adopted as a notch part (1e, 2f) of the urine sensor. A urine sensor is thus formed. Whether there is urine and electrolyte, etc. around the tag can be clearly identified by identifying whether the tag can communicate with the reader or not. Furthermore, by using the IC tags as the urine sensor, the detecting precision of the urination detecting system is improved.

Description

The urine sensor is with UHF and HF frequency band IC tag and the detection system of urinating
Technical field
The present invention relates to a kind of urine sensor with UHF (Very ultrashort wave (USW)) frequency band IC tag and urine sensor be with HF (shortwave) the frequency band IC tag and the detection system of urinating of using an IC tag in them.
Background technology
In the past, in medical facilities, nurse facility, care of aged's facility etc., used the detection system of urinating (with reference to patent documentation 1) as the urine sensor such as the label (tag) that utilizes non-contact type, mark (label).
This detection system of urinating is by forming with the lower part: disposable resonant etc., and its inside surface that is attached to diaper etc. is as the urine sensor; Reader, it communicates with above-mentioned label by being configured near Anneta module this label etc.; And the control device of computing machine etc., it is controlled this reader, wherein, this detection system of urinating is detecting when urinating or when unusual etc., by the communication means of communication line etc., with the patient, notified (circular) to give medical relationship person, caregiver etc. from above-mentioned control device by caregiver's etc. position, state.
In this existing detection system of urinating, label is detected according to following principle as the urine detection that detector uses.That is, utilize following principle: with above-mentioned resonant as the urinating during detection system of urine sensor, urine, electrolyte etc. enters between the winding wire-like antenna of this resonant, the resonance wavelength of antenna changes thus.Thereby the reader that is difficult to utilize the electric wave that sends provision wavelengths to scan detects (reading) label.And, to change into the moment that can not detect this signal level (less than certain threshold values) from the signal level that can detect above-mentioned resonant and capture as the timing of urinating, send signals such as prompting, warning according to the advice method that is predetermined (send light signal, voice signal or give notice etc.) to upper server.
Patent documentation 1: TOHKEMY 2004-139545 communique
Summary of the invention
The problem that invention will solve
Yet, as in the detection system of urinating of urine sensor, have the more problem of malfunction (wrong report) at resonant that will be as above etc.This malfunction is for obviously not urinating but sent and detect the signal of urinating, and its reason is considered to the above-mentioned resonant that uses as the urine sensor etc. and causes moisture is too responsive.
Promptly, the optimum bandwidth of the resonance wavelength of resonant (band peak) is precipitous and narrow, therefore as the urine sensor be close to be configured in human body around the time because the change that everyone physique there are differences, the moisture of (beyond the urine) skin, perspiration etc. can cause resonance wavelength easily.Therefore, the detection system of urinating of the variation of the signal that present this detection is returned from above-mentioned resonant might think and take place to urinate and carry out malfunction that hope can be improved by mistake.
The present invention finishes in view of the above problems, its purpose be to provide the urine sensor that whether has urine around a kind of can clearly the identification with UHF frequency band IC tag and urine sensor with HF frequency band IC tag and a kind of detection system of urinating, malfunction tails off detection system, fiduciary level uprises by one in UHF frequency band IC tag and the HF frequency band IC tag is made as the urine sensor thereby this is urinated.
For reaching above-mentioned purpose, the present invention's first main idea is: a kind of urine sensor UHF frequency band IC tag, possesses the antenna circuit that IC chip and UHF frequency band are used, the ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms, with the resonance wavelength of this antenna circuit be tuned to provision wavelengths come to communicate with reader, this urine sensor is formed with notch part with this ring portion electricity disconnection with UHF frequency band IC tag on the part of above-mentioned ring portion.
And, second main idea of the present invention is: a kind of urine sensor UHF frequency band IC tag, possesses the antenna circuit that IC chip and UHF frequency band are used, first ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms, with the resonance wavelength of this antenna circuit be tuned to provision wavelengths come to communicate with reader, this urine sensor is provided with do not match second ring portion of usefulness of impedance with UHF frequency band IC tag on the part of above-mentioned antenna circuit, be formed with the notch part that this ring portion electricity is disconnected on the part of above-mentioned second ring portion.
In addition, for reaching above-mentioned purpose, the 3rd main idea of the present invention is: a kind of urine sensor HF frequency band IC tag, possesses the antenna circuit that IC chip and HF frequency band are used, the ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms, make this antenna circuit resonance wavelength be tuned to provision wavelengths come to communicate with reader, this urine sensor is formed with notch part with this ring portion electricity disconnection with HF frequency band IC tag on the part of above-mentioned ring portion.
And, the 4th main idea of the present invention is: a kind of urine sensor HF frequency band IC tag, possesses the antenna circuit that IC chip and HF frequency band are used, first ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms make this antenna circuit resonance wavelength be tuned to provision wavelengths come to communicate with reader, this urine sensor is provided with do not match second ring portion of usefulness of impedance with the part of the above-mentioned antenna circuit of HF frequency band IC tag, is formed with the notch part that this ring portion electricity is disconnected on the part of above-mentioned second ring portion.
On the other hand, for reaching above-mentioned purpose, the 5th main idea of the present invention is: the detection system of urinating of the present invention has: the urine sensor, and its UHF frequency band IC tag of being put down in writing by above-mentioned first main idea constitutes; Reader, its Anneta module by the electric wave of the corresponding provision wavelengths of transmission/reception and this UHF frequency band IC tag comes and is positioned at from the locational above-mentioned urine sensor in this Anneta module to communicate; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection information with urine sends to the outside, wherein, this detection system of urinating constitutes: above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit is changed to from communicating by letter can not communicate by letter the time at above-mentioned reader and communications status between the urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
And the 6th main idea of the present invention is: the detection system of urinating of the present invention has: the urine sensor, and its UHF frequency band IC tag of being put down in writing by above-mentioned second main idea constitutes; Reader, its Anneta module by the electric wave of the corresponding provision wavelengths of transmission/reception and this UHF frequency band IC tag come be positioned at this Anneta module from locational above-mentioned urine sensor communicate; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection information with urine sends to the outside, wherein, above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit is changed to from communicating by letter can not communicate by letter the time at above-mentioned reader and communications status between the above-mentioned urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
In addition, for achieving the above object, the 7th main idea of the present invention is a kind of detection system of urinating, and it has: the urine sensor, and its HF frequency band IC tag of being put down in writing by above-mentioned the 3rd main idea constitutes; Reader, its Anneta module by the electric wave of the corresponding provision wavelengths of transmission/reception and this HF frequency band IC tag come be positioned at this Anneta module from locational above-mentioned urine sensor communicate; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection information with urine sends to the outside, wherein, above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit is changed to from not communicating by letter can communicate by letter the time at above-mentioned reader and communications status between the above-mentioned urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
And the 8th main idea of the present invention is a kind of detection system of urinating, and it has: the urine sensor, and its HF frequency band IC tag of being put down in writing by above-mentioned the 4th main idea constitutes; Reader, its Anneta module by the electric wave of the corresponding provision wavelengths of transmission/reception and this HF frequency band IC tag come be positioned at this Anneta module from locational above-mentioned urine sensor communicate; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection signal with urine sends to the outside, wherein, above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit becomes from communicating by letter can not communicate by letter the time at above-mentioned reader and communications status between the urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
Promptly, urine sensor as the detection system of urinating, inventors of the present invention are conceived to following two kinds of IC tag and replace above-mentioned to too responsive existing resonant such as moisture etc., wherein a kind of IC tag (UHF frequency band IC tag) is for using the UHF (ultrashort wave (USW): wavelength 1m~10cm of the optimum bandwidth (band peak) with broad, frequency 300MHz~3GHz) bandwidth communicates, (shortwave: wavelength 100m~10m, frequency 3~30MHz) bandwidth communicate another IC tag (HF frequency band IC tag) in order to use HF.Yet, even these UHF frequency band IC tag and HF frequency band IC tag are configured in the influence of the moisture that also is difficult to be subjected to skin around the human body, perspiration etc., even but relative therewith these IC tag adhere to urine, electrolyte etc., the variation of resonance wavelength is also insufficient, if directly utilize then may become unreliable to the detection of urinating.Therefore, present inventors are in order to improve these IC tag as the detection degree of accuracy of urine sensor and attentively research repeatedly, its result is for by being provided as the breach of urine sensor part in the impedance matching of the antenna circuit of UHF frequency band IC tag and HF frequency band IC tag on position (impedance circuit), thereby successfully produces the more cataclysmal label of resonance wavelength (bandwidth) generation owing to urine, electrolyte etc.And, discovery can be constructed a kind of moisture beyond the urine etc. not being reacted and can only detect the detection system of urinating of urine, electrolyte etc. reliably with UHF frequency band IC tag and HF frequency band IC tag by being used the urine sensor after this improvement, thereby reaches purpose of the present invention.
The effect of invention
Like this, use in the HF frequency band IC tag with the urine sensor of UHF frequency band IC tag and the 3rd main idea, on the part of the ring portion that the impedance matching of antenna circuit is used, be formed with the notch part that this ring portion electricity is disconnected at the urine sensor of first main idea of the present invention.Therefore, when insufficient dry around being present in such as urine, electrolyte, because the circuit (ring portion) that above-mentioned impedance matching is used is imperfect, and resonance wavelength is inconsistent, therefore can not communicate with reader with IC tag for these urine sensors.Then, because urine, electrolyte etc. enter into above-mentioned notch part and short circuit, only when above-mentioned ring portion became conducting state moistening, the resonance wavelength unanimity can communicate with this reader.Its result for this urine sensor with UHF frequency band IC tag and urine sensor HF frequency band IC tag according to whether can communicating with above-mentioned reader, whether that can clearly identify this label exists urine, electrolyte etc. on every side.
And, urine sensor in second main idea of the present invention is used in the HF frequency band IC tag with the urine sensor of UHF frequency band IC tag and the 4th main idea, the part of antenna circuit is provided with do not match second ring portion of usefulness of impedance, is formed with the notch part that this ring portion electricity is disconnected on the part of above-mentioned second ring portion.Therefore, different with IC tag with the urine sensor of above-mentioned first main idea and the 3rd main idea, insufficient around when having urine, electrolyte etc. dry, the do not match circuit (ring portion) of usefulness of above-mentioned impedance is imperfect, thereby can communicate with reader.Then, thereby urine, electrolyte etc. enter into above-mentioned notch part short circuit, and only when above-mentioned ring portion became complete (conducting) state moistening, resonance wavelength can significantly change, and can not communicate with this reader.Its result is for whether the urine sensor of this second main idea urine sensor with UHF frequency band IC tag and the 4th main idea can communicate with above-mentioned reader with HF frequency band IC tag basis, and whether that can clearly identify this label exists urine, electrolyte etc. on every side.
In addition, possess as the detection system of urinating of the present invention's the 5th main idea and the 7th main idea: the urine sensor, its IC tag by above-mentioned first main idea and the 3rd main idea constitutes; Reader, itself and this urine sensor communicates; Record cell, it writes down the signal message of above-mentioned urine sensor; And notification unit, its detection information with urine sends to the outside, wherein, above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, above-mentioned notification unit changes to from not communicating by letter can communicate by letter the time at the communications status between above-mentioned reader and the urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.Therefore, detection system is configured in the urine sensor on the human body closely even this is urinated, and the malfunction that moisture, perspiration etc. owing to skin carry out can not take place yet, and can only detect reliably urinating.In view of the above, can alleviate medical relationship person, caregiver's etc. burden, and also save and change the waste not have diaper urinated etc. to cause.
And, also have as the detection system of urinating of the 6th main idea of the present invention and the 8th main idea: the urine sensor, its IC tag by above-mentioned second main idea and the 4th main idea constitutes; Reader, itself and this urine sensor communicates; Record cell, it writes down the signal message of above-mentioned urine sensor; And notification unit, its detection information with urine sends to the outside, wherein, above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, above-mentioned notification unit is changed to can not communicate the time from communicating at the communications status between above-mentioned reader and the above-mentioned urine sensor, the detection signal of the urine that is predetermined sent to get at the outside, therefore can play and the same effect of the detection system of urinating as above-mentioned the 5th main idea and the 7th main idea.
And, constitute signal message that above-mentioned notification unit will be recorded in the urine sensor in the above-mentioned record cell append to the detection system of urinating that sends in the detection signal of above-mentioned urine can corresponding as soon as possible each patient, by the caregiver etc.Can also grasp each patient, by caregiver's etc. number of micturitions, pattern etc., and can select transmission destination, the contact method of detection signal based on signal message, its result for can be reliably personal handhold telephone system), the reliable information of mobile phone, personal digital assistant device etc. sends to predetermined contact destination etc. with by PHS (Personal Handy-phone System:.
Description of drawings
The (a) and (b) of Fig. 1 are to schematically show urine sensor in first embodiment of the present invention with the planimetric map of the figure case of the antenna circuit of UHF frequency band IC tag.
Fig. 2 represents that the urine sensor that will be made of the IC tag of first embodiment is installed in the key diagram of the state on the diaper.
The (a) and (b) of Fig. 3 are the planimetric maps of variation of pattern that schematically show the antenna circuit of the UHF frequency band IC tag that the urine sensor in first embodiment uses, and (c) are the planimetric maps of reference example (conventional example) of pattern of the antenna circuit of expression UHF frequency band IC tag.
(a) of Fig. 4 schematically shows urine sensor in second embodiment of the present invention with the planimetric map of the figure case of the antenna circuit of HF frequency band IC tag, (b) is the planimetric map that the state after the part beyond the sensor part is covered in expression.
(a) of Fig. 5 is the planimetric map of figure case that schematically shows the antenna circuit of the HF frequency band IC tag that the urine sensor in the 3rd embodiment of the present invention uses, and (b) is the planimetric map of the state after the part beyond the sensor site is covered in expression.
Fig. 6 is the key diagram of the summary structure (system diagram picture) of the detection system of urinating in the expression embodiments of the present invention.
Fig. 7 is the key diagram that expression is installed example in bed with the Anneta module and the reader of the detection system of urinating of embodiment.
Fig. 8 is that expression is with the Anneta module of the detection system of urinating of embodiment and the key diagram that reader is installed in the example on the wheelchair.
Fig. 9 is the chart of the frequency characteristic of the UHF frequency band IC tag used of the urine sensor of expression in the embodiments of the invention.
Description of reference numerals
1: urine sensor UHF frequency band IC tag; 1b: ring portion; 1e: notch part; 2: urine sensor UHF frequency band IC tag; 2e: second ring portion; 2f: notch part; The 4:IC chip.
Embodiment
Next, based on accompanying drawing embodiments of the present invention are described in detail.
Suppose the detection system utilization in medical facilities, nurse facility etc. of urinating in the embodiments of the present invention, the urine sensor is attached on the assigned position of diaper 5 as shown in Figure 2 urine sensor 10 with HF frequency band IC tag 7,8 (with reference to Fig. 4,5) etc. with UHF frequency band IC tag 2 (Fig. 1 (b)) or urine sensor with UHF frequency band IC tag 1 (Fig. 1 (a)) or urine sensor, the patient in the facility, is being worn this diaper 5 by caregiver etc.And, in facility, on the necessary position in ward, room etc., set the combinations that many groups are made up of Anneta module 11 that is used for communicating with urine sensor 10 and reader 12 as shown in Figure 6, and locate to dispose the control device of forming by the computing machine that these a plurality of readers 12 are unified to control etc. 13 (comprising record cell and notification unit) at the nurse center of management-side etc.
At first to the patient, described by the urine sensor of dresses such as caregiver.
In first embodiment of the present invention, have the UHF frequency band IC tag 1 of the antenna circuit (pattern (pattern) A) shown in Fig. 1 (a) or have the UHF frequency band IC tag 2 of the antenna circuit (pattern B) shown in Fig. 1 (b) with the use of UHF frequency band IC tag as the urine sensor that is attached on the above-mentioned diaper 5.
If the UHF frequency band IC tag 1 with above-mentioned antenna circuit (pattern A) is elaborated, methods such as the then attaching of the antenna circuit of this UHF frequency band IC tag 1 (Fig. 1 (a)) by the metal forming for example using printing processes such as flexible printing, serigraphy on the surface of the base material 3 of membranaceous or sheet conductive paste (electric conductivity China ink) has been coated with into predetermined pattern or used the demoulding, evaporation, etching form.This antenna circuit (pattern A) is by constituting with the lower part: two antenna part 1a, 1a, the electric wave of these two antenna part 1a, 1a transmission/reception provision wavelengths; The ring portion 1b that the impedance matching of antenna is used; And the 1c of bridge portion, it is connected antenna part with ring portion, be formed with on above-mentioned ring portion 1b: IC chip connecting portion 1d, and it is used to install IC chip 4 (double dot dash line); And notch part 1e, its impedance matching structure electricity with this ring portion 1b disconnects.
Above-mentioned notch part 1e forms the linearity that is parallel to each other, and the pattern width at the position of parallel (relatively) (live width) is generally more than the 0.1mm, and the prolongation of the length direction at this relative position is usually more than 0.1mm.Then, between this, be formed with the ditch (part that do not have antenna pattern) of width more than 0.1mm.
Then, the antenna circuit of above-mentioned pattern A is installed IC chip 4 on its IC chip connecting portion 1d, in this IC chip 4, above-mentioned antenna part 1a, the 1c of bridge portion and above-mentioned ring portion 1b except near the regional other parts notch part 1e and the notch part 1e by sealings such as resin sheet, waterproof papers, be made into the UHF frequency band IC tag 1 (urine sensor 10) that the urine sensor is used.
In addition, the UHF frequency band IC tag 1 that above-mentioned urine sensor is used is close to the patient, by on caregiver's etc. the skin, when therefore using, on UHF frequency band IC tag 1, be covered with the sack (packing) or the wrapping paper (with reference to Fig. 2) of raw material composition with hygroscopic nonwoven fabrics, paper etc. as urine sensor 10.Be directed to the above-mentioned effect that does not have sealed notch part 1e by having the moisture that sack that hygroscopic this raw material constitutes or wrapping paper also play urine, electrolyte etc.In addition, dispose the bonding agent, double faced adhesive tape etc. of the position that is used for fixing this urine sensor 10 by above-mentioned rear side (not forming the one side of UHF frequency band IC tag 1 in the base material 3) with sack that hygroscopic raw material constitutes.
When this UHF frequency band IC tag 1 is used as urine sensor 10, as discussed previously, on the part of the ring portion 1b that the impedance matching of antenna circuit is used, be formed with the notch part 1e that this ring portion 1b electricity is disconnected, therefore when not having urine, electrolyte etc. dry around, the circuit that above-mentioned impedance matching is used (ring) is imperfect, and the resonance wavelength of antenna (keeping the bandwidth of width to a certain degree) significantly is offset disengaging from the wavelength (being determined in advance) of the electric wave that above-mentioned reader 12 grades are sent.Therefore, under this state, UHF frequency band IC tag 1 and reader 12 grades that the urine sensor is used can not communicate.
And, this position short circuit because urine, electrolyte etc. enter in the ditch that forms on above-mentioned notch part 1e, only during complete moistening of the circuit of using in above-mentioned impedance matching (ring), the resonance wavelength of this antenna (bandwidth) significantly is offset the scope that the electric wave for the specific wavelength that sends with above-mentioned reader 12 grades can communicate, and can communicate with reader 12 grades.The resonance wavelength (bandwidth) of this antenna does not take place significantly to be offset when in addition, confirming the variation of specific inductive capacity of the antenna periphery that moisture, perspiration etc. at skin cause.
According to these, when above-mentioned UHF frequency band IC tag 1 is used as urine sensor 10, not by influences such as the moisture of skin, perspirations, according to the state of state variation for communicating from not communicating with reader 12 grades, can discern clearly this label 1 around whether have urine, electrolyte etc., promptly whether urinate.
Like this, urine sensor according to the antenna circuit with pattern A is changed to and can communicates by letter from not communicating by letter with reader 12 grades with UHF frequency band IC tag 1, detect and urinate, relative therewith, urine sensor with the antenna circuit (pattern B) shown in Fig. 1 (b) is changed to and can not communicates by letter from communicating with reader 12 grades with UHF frequency band IC tag 2, detects thus and urinates.Below the UHF frequency band IC tag 2 with antenna circuit (pattern B) is described.
The antenna circuit of this UHF frequency band IC tag 2 (Fig. 1 (b)) is with the difference of the antenna circuit (pattern A) of above-mentioned UHF frequency band IC tag 1: the first ring portion 2b that uses except the impedance matching identical with the antenna circuit of pattern A, also be formed with the second ring portion 2e of the impedance (become and do not match) that is used to upset this antenna, the part of the above-mentioned second ring portion 2e is provided with the notch part 2f that this second ring portion 2e electricity is disconnected.
In addition, the symbol 2a of Fig. 1 (b) is an antenna part, and 2c is a bridge portion, and 2d is an IC chip connecting portion.In addition, the notch part 1e of notch part 2f and above-mentioned pattern A forms the linearity that is parallel to each other equally, and more than 0.1mm, the prolongation of the length direction at this relative position is generally more than the 0.1mm pattern width at the position of parallel (relatively) (live width) usually.Then, between this, be formed with the ditch (part that do not have antenna pattern) of width more than 0.1mm.
Then, the same with above-mentioned UHF frequency band IC tag 1, except near the regional other parts notch part 2f and the notch part 2f by sealings such as resin sheet, waterproof papers, be made into the urine sensor with UHF frequency band IC tag 2 (urine sensors 10).And, be covered with above this UHF frequency band IC tag 2 and have hygroscopic sack (packing) or wrapping paper, dispose the double faced adhesive tape of the position that is used for fixing urine sensor 10 etc. in the rear side of this sack, this point also is the same with above-mentioned UHF frequency band IC tag 1.
When this UHF frequency band IC tag 2 with antenna circuit (pattern B) is used as urine sensor 10, the part of antenna circuit is provided with the do not match second ring portion 2e of usefulness of impedance, on the part of the above-mentioned second ring portion 2e, be formed with the notch part 2f that this ring portion 2e electricity is disconnected, therefore when not having such dry such as urine, electrolyte around, the do not match circuit (second ring portion) of usefulness of above-mentioned impedance is imperfect, and the resonance wavelength of antenna (bandwidth) is positioned at the scope that can communicate by letter with the electric wave of the specific wavelength that sends from above-mentioned reader 12 grades.For this reason, in this state, urine sensor UHF frequency band IC tag 2 can be communicated by letter with reader 12 grades.
Then, owing to so urine, electrolyte etc. flow into this position short circuit of ditch that forms on above-mentioned notch part 2f, only when above-mentioned impedance does not match complete moistening of the circuit (second ring portion) of usefulness, the scope that the resonance wavelength of this antenna (bandwidth) can be communicated by letter from the electric wave of the specific wavelength that sends with above-mentioned reader etc. significantly is offset disengaging, thereby can not communicate with reader 12 grades.In addition, the same with above-mentioned UHF frequency band IC tag 1 in UHF frequency band IC tag 2, the resonance wavelength (bandwidth) of this antenna does not take place significantly to be offset when the variation of the specific inductive capacity around the antenna that the moisture of skin, perspiration etc. cause as can be known yet.
Its result is for when utilizing above-mentioned UHF frequency band IC tag 2 as urine sensor 10, also not by influences such as skin, perspirations, according to the state of state variation, can discern clearly and whether take place to urinate for not communicating by letter from communicating with reader 12 grades.
In addition, in the above-described embodiment, the antenna circuit pattern of using as UHF frequency band IC tag, in order to understand its feature easily, illustration antenna circuit pattern A, the B as connecting by the 1c of bridge portion between two antenna part 1a, the 1a about the (a) and (b) of Fig. 1, simplified, but except having above-mentioned square (expire) shape, also have the corresponding various versions of resonance theory of whirlpool coiled type, other special waveform shape etc. and employing as the antenna circuit pattern that the UHF frequency band is used.In addition, the antenna circuit pattern of actual fabrication is considered all environmental factors such as the optimal wavelength, output of specific inductive capacity, screening effect, the reader side of the influence of near the human body moisture, sweat etc. and human body self, adjusts (resonance wavelength tuning etc.) in advance so that obtain optimal communication condition when being configured in the diaper.For this reason, as the antenna circuit pattern, the different situation of the cable circuit pattern that exists the impression think first and UHF frequency band IC tag of the present invention to use (as a reference example existing IC tag 6) with reference to Fig. 3 (c).
Yet, urine sensor of the present invention is not influenced by this antenna circuit whole pattern shape with UHF frequency band IC tag, comprises whole UHF frequency band IC tag on the ring-type position (impedance part) that the impedance matching of antenna circuit is used: a kind of UHF frequency band IC tag is for having the structure (shape) of the ring-type position electricity disconnection that the impedance matching of this antenna circuit is used on the ring-type position (impedance part) that the impedance matching of antenna circuit is used; Another UHF frequency band IC is provided with other the ring-type position that is used to upset impedance possessing on the part of antenna circuit on ring-type position (impedance part) that impedance matching uses and the other parts at this antenna circuit, be formed with the structure (shape) that this ring-type position electricity is disconnected on this other ring-type position.
For example, becoming under the situation that basic antenna pattern is Fig. 3 (c), can exemplify out the variation of (a) this antenna circuit pattern A ' of Fig. 3 as the antenna circuit pattern A (Fig. 1 (a)) that on the part of the ring portion 1b that the impedance matching of antenna circuit is used, forms the notch part 1e that this ring portion 1b electricity is disconnected.This antenna pattern is used above-mentioned urine sensor with on the UHF frequency band IC tag 1, and urine sensor 10 also can play same effect.
In addition, for example on the part of antenna circuit, be provided with the do not match second ring portion 2e of usefulness of impedance, even when (b) this antenna circuit pattern B ' of Fig. 3 was used above-mentioned urine sensor with UHF frequency band IC tag 2 as the variation of the antenna circuit pattern B (Fig. 1 (b)) that forms the notch part 2f that this ring portion 2e electricity is disconnected on the part of the above-mentioned second ring portion 2e, urine sensor 10 also can play same effect.
In either case; in order to bring into play function as the urine sensor in the top that makes the structure (notch geometry) that ring-type position electricity is disconnected; and, remain on state that exposes or the state of protecting by the external packing that moisture such as urine can see through not by sealings such as resin, lamination etc.
Then, to being through the patient, using second embodiment of HF frequency band IC tag 7 to describe on by urine sensors on one's body such as caregivers.(a) of Fig. 4 is the planimetric map of the urine sensor of expression in second embodiment of the present invention with the pattern of the antenna circuit of HF frequency band IC tag, and (b) of Fig. 4 is the planimetric map of the state before the use after by resin sheet the part beyond this sensor part being covered.
Shown in Fig. 4 (a), the urine sensor in this embodiment with the antenna circuit (pattern C) of HF frequency band IC tag 7 also be by printing process, the demoulding the method such as attaching, evaporation, etching of metal forming be layered on the surface of base material 3 of membranaceous or sheet and form.Then, in this antenna circuit (pattern C), the same with the antenna circuit (pattern A) of UHF frequency band IC tag 1 in first embodiment, on the part of the antenna part 7a of coiled type, be formed with notch part 7b that the impedance matching structure electricity with this antenna part 7a disconnects and the IC chip connecting portion 7c that is used to install IC chip 4.
Above-mentioned notch part 7b forms the ditch shape with the part disconnection of coil, and the width (furrow width) of the part that does not have antenna pattern wherein forms more than the 0.05mm.In addition, before using as urine sensor 10, shown in Fig. 4 (b), except the notch part 7b that becomes sensor part and near field thereof, other parts are by sealings such as resin sheet 9, waterproof papers.In addition, when using, also had sack (packing) or the wrapping paper covering (with reference to Fig. 2) that hygroscopic raw material is formed above it by nonwoven fabrics, paper etc. as urine sensor 10.
When above-mentioned HF frequency band IC tag 7 is used as urine sensor 10, also the UHF frequency band IC tag 1 with first embodiment is the same, do not exist under the drying regime of urine, electrolyte etc. around, the circuit that impedance matching is used (ring) is imperfect, in this kind state, can't communicate with reader etc.Then, so flow into this position short circuit in the ditch that forms on the above-mentioned notch part 7b owing to urine, electrolyte etc., only during complete moistening of the circuit of using in above-mentioned impedance matching (ring), the resonance wavelength of this antenna (bandwidth) significantly is offset the scope that can communicate by letter for the electric wave of the specific wavelength that sends with above-mentioned reader etc. and can communicates by letter.When the structure of this embodiment, the resonance frequency 44MHz when observing drying is 13.8MHz at moistening hour offset in passing.
Therefore, HF frequency band IC tag 7 in this embodiment is not by influences such as the moisture of skin, perspirations, according to from becoming the state that can communicate by letter with state that reader etc. can not be communicated by letter, can be identified in clearly this label around whether have urine, electrolyte etc., promptly whether urinate.
Then, on the patient, by the urine sensor of dresses such as caregiver, used the 3rd embodiment of HF frequency band IC tag 8 to describe.(a) of Fig. 5 is the planimetric map of the urine sensor of expression in the 3rd embodiment of the present invention with the pattern of the antenna circuit of HF frequency band IC tag, and to be expression covered the planimetric map of the state before the use of the part beyond this sensor part with resin sheet to (b) of Fig. 5.
Shown in Fig. 5 (a), the antenna circuit (pattern D) of the HF frequency band IC tag 8 that the urine sensor in this embodiment is used also by printing process, the demoulding the method such as attaching, evaporation, etching of metal forming be layered on the surface of base material 3 of membranaceous or sheet.Then, the same with the antenna circuit (pattern B) of UHF frequency band IC tag 2 in first embodiment in this antenna circuit (pattern D), be formed with the second ring portion 8b of the impedance that is used for upset (become and do not match) this antenna part 8b, on the part of the above-mentioned second ring portion 8b, be provided with the notch part 8d that this second ring portion 8b electricity is disconnected.
The same linearity that is parallel to each other that forms of notch part of above-mentioned notch part 8d and above-mentioned pattern B, the pattern width at the position of parallel usually (relatively) (live width) is more than 0.1mm, and the prolongation of the length direction at this relative position is usually more than 0.1mm.Then, being formed with width between this is ditch (part that does not have antenna pattern) more than the 0.05mm.
And, the same with above-mentioned HF frequency band IC tag 7 shown in Fig. 5 (b), except notch part 8d and near field other parts thereof by resin sheet 9, prevent sealings such as paper, be made into urine sensor HF frequency band IC tag 8 (urine sensors 10).In addition, also being had hygroscopic sack (packing) or wrapping paper on urine sensor HF frequency band IC tag 8 covers, dispose the double faced adhesive tape that is used for fixing urine sensor 10 etc. in the rear side of this sack, this point is identical (with reference to Fig. 2) with above-mentioned HF frequency band IC tag 7.
When above-mentioned HF frequency band IC tag 8 is used as urine sensor 10, the same with the UHF frequency band IC tag 2 of first embodiment, do not exist under the drying regime of urine, electrolyte etc. around, the do not match circuit (second ring portion) of usefulness of above-mentioned impedance is imperfect, and the resonance wavelength of antenna (bandwidth) is positioned at the scope that can communicate by letter with the electric wave of the specific wavelength that sends from reader etc.For this reason, in this state, the urine sensor can communicate with reader etc. with HF frequency band IC tag 8.
Then, so flow into this position short circuit of ditch that forms on the above-mentioned notch part 8d owing to urine, electrolyte etc., only under above-mentioned impedance does not match the complete wetness conditions of the circuit (second ring portion) of usefulness, the resonance wavelength of this antenna (bandwidth) significantly is offset in the scope that can communicate by letter from the electric wave of the specific wavelength that can send with above-mentioned reader etc. and breaks away from, and therefore can not communicate with reader etc.When the structure of this embodiment, the resonance frequency when observing drying (about common 13.2~20MHz) is more than the 100MHz at moistening hour offset, can not communicate.
Therefore, when above-mentioned HF frequency band IC tag 8 is used as urine sensor 10, also,, can discern clearly and whether take place to urinate according to from becoming the state that to communicate by letter with the state that reader etc. communicates not by cause influences such as the moisture of skin, perspirations.
Then, the one-piece construction to the detection system of urinating of having used the urine sensor of being made up of these UHF frequency band IC tag or HF frequency band IC tag describes.
As discussed previously, as shown in Figure 6, the detection system of urinating of embodiments of the present invention will be configured in the Anneta module 11 of a plurality of positions in the facility and reader 12 and be made of as main body the control device 13 that the computing machine that is configured in nurse center etc. etc. is formed.Between these each machines by wired lan (solid line) or WLAN (dot-and-dash line) connection of etc.ing, the network that formation mutually can switching signal (information).
In addition, above-mentioned control device 13 have concurrently the above-mentioned urine sensor 10 of record signal message function (record cell) and the detection information of urine sent to outside function (notification unit).In addition, symbol R among the figure is router (a WLAN router), symbol C is coordinator's (edge router), symbol S represents to have the server (sip server etc.) that the content (information) of surveying signal according to the above-mentioned urine examination that sends to the outside is suitably selected the transmission destination of urine detection signal and sent the function of content (voice messaging, Word message etc.), and symbol M is represented the personal digital assistant device of PHS, mobile phone etc.
In this detection system of urinating, each reader 12 is that the variation that captures the communications status of above-mentioned urine sensor 10 (becomes and can communicate by letter from not communicating by letter, perhaps become and to communicate by letter) from communicating by letter, the electric wave of provision wavelengths that will be corresponding with the resonance wavelength (bandwidth) of urine sensor 10 sends at interval with the official hour that is predetermined, and has the timer circuit that is used for above purposes.
Then, when the communications status of above-mentioned control device 13 between above-mentioned reader 12 and urine sensor 10 changes, send to outside mode with the detection signal of the urine that will be predetermined and constitute, at the signal message of the urine sensor 10 of addition record on this detection signal in the computing machine of above-mentioned control device 13 etc. (this position, number of times, be used for the people's of specific dress id information etc.) thus send.
When above-mentioned Anneta module 11 and reader 12 are carried out more specific description, as shown in Figure 7, for example want in bed irremovable patient, when being detected, will be loaded on quilt or the mattress etc. than the thin slice shape Anneta module 11 of the cushion of broad or sheet etc. by urinating of caregiver etc.Then, reader 12 is arranged near the Anneta module 11 to wait by wiring they are connected, can the signal at the urine sensor 10 (with reference to Fig. 2) that is through the patient that couches on this, installs on by the diaper 5 on the caregiver etc. be detected thus.
In addition, as above-mentioned when wanting on the fixture of bed etc., to receive the signal of urine sensor 10, the frequent position of specific this urine sensor 10 before there is no need to urinate, so urine sensor 10 is preferred only uses when detecting urine the UHF frequency band IC tag 1 with the antenna circuit (pattern A) shown in Fig. 1 (a) of return signal or have the HF frequency band IC tag 7 of the antenna circuit (pattern C) shown in Fig. 4 (a).In the time can communicating (when detecting urine) with reader 12, the id information (RFID information) that writes in advance in this IC chip sends to reader 12 from above-mentioned IC tag 1,7, therefore if the specific router R that is connected the reader 12 of having accepted signal the place is set, house number that just can this urine sensor 10 of specific use, bed (patient) number etc.Certainly, at this moment also can use the UHF frequency band IC tag 2 or the HF frequency band IC tag 8 of return signal when not detecting urine.
In addition, for example want to the patient by using wheelchair to move, when being detected by urinating of caregiver etc., as shown in Figure 8, upload the Anneta module 11 that is equipped with cushion or sheet etc., reader 12 is set near Anneta module and passes through wiring etc. they connections at the seat of wheelchair.Anneta module 11 also can be provided with or be built in following (rear side) or the back-rest at the seat of wheelchair if necessary.
In addition, as mentioned above, want to receive be installed in the patient that can move voluntarily, during by the signal of the urine sensor 10 on the diaper 5 of dresses such as caregiver, the also frequent position of specific this urine sensor 10 before preferably urinating.For this reason, urine sensor 10 preferably uses the UHF frequency band IC tag 2 or the HF frequency band IC tag 8 of return signal when not detecting urine, and above-mentioned UHF frequency band IC tag 2 has the antenna circuit (pattern B) shown in Fig. 1 (b); Above-mentioned HF frequency band IC tag 8 has the antenna circuit (pattern D) shown in figure (b).And, the id information that is pre-written in the IC chip of IC tag 2,8 sends to reader 12 at interval with official hour, as long as therefore determine to be connected to the reader 12 that has received this signal router R the place is set, zone that just can specific these urine detection device 10 places.Certainly, also can use only the UHF frequency band IC tag 1 of return signal or HF frequency band IC tag 7 when detecting urine.In this case, can hold urinate the zone and urinate after action.
The detection system of urinating of present embodiment is used above-mentioned UHF frequency band IC tag 1,2 or HF frequency band IC tag 7,8 and is urine sensor 10 like this, therefore this urine sensor 10 is close to and is configured on the human body, can not carry out malfunction yet, thereby can only detect reliably urinating because of the moisture of skin, perspiration etc.Then, according to this reliably the information of urinating can alleviate the medical relationship person of handling facility etc. or caregiver's etc. burden, and also can save the waste that diaper that replacing do not urinate etc. is caused.
Therefore in addition, this detection system of urinating can be obtained the information of urinating in real time, can be according to each patient, corresponding as soon as possible by caregiver's etc. state.Can also easily hold each patient, by caregiver's etc. number of micturitions, pattern etc., and send to contact destination that is predetermined etc. according to the details of agreement that this information will be by PHS, mobile phone, personal digital assistant device etc.
Then, in the lump embodiment is described with comparative example.But the present invention is not limited by following embodiment.
In this embodiment, as discussed previously, as obtaining tuning urine sensor that optimal communication condition carried out wavelength in being configured in diaper the time with UHF frequency band IC tag, the UHF frequency band IC tag of " embodiment 1 " of Fig. 3's (b) antenna circuit (pattern B) of being put down in writing has been adopted in making, impedance will be set in antenna circuit not match the UHF frequency band IC tag (with reference to (c) of Fig. 3) of the second ring portion 2e (and notch part 2f) of usefulness as " comparative example 1 ", wavelength characteristic (frequency characteristic is because the change degree of the resonance wavelength that moisture causes) and the distance that can communicate by letter (cm) during moistening after drenching when relatively drier and by water.
At first, embodiment 1, comparative example 1 are all made antenna circuit by the flexible printing method on base material.In addition, except different with this circuit pattern, make the antenna that UHF frequency band IC tag is used as above-mentioned under the same conditions.
(base material)
PET film Dong Li company makes lumirror (registered trademark) U34
Thickness-75 μ m carries out corona treatment on the two sides
(electric conductivity China ink)
InkTec Co., Ltd. company (Korea S) makes TEC-PR-030
Composition silver particle-mean grain size: 20~50nm containing ratio: below the 40wt%
Bonding agent (organic complex compounds) is below containing ratio-35wt%
Below 2-isopropyl alcohol-10wt%
Viscosity-500mPas
(flexible printing machine)
MT-TECH company makes FC-33S
(flexible printing plate)
KOMURA-TECH company makes version thickness-2.25mm
The antenna part printing is with the black maintenance dose of black maintaining part: 0.1~1.5ml/m 2
The printing of IC chip connecting portion is with the black maintenance dose of black maintaining part: 2~3ml/m 2
The making of<antenna circuit pattern 〉
[antenna circuit of embodiment 1]
On the PET base material, print transfer printing electric conductivity China ink by above-mentioned flexible printing machine, and after dry 120 ℃ * 2 minutes, obtain the antenna circuit of embodiment 1 usefulness.In addition, the antenna circuit pattern is the same with above-mentioned Fig. 3 (b), and the part of this pattern is provided with do not match second ring portion of usefulness of impedance, is formed with the notch part that this ring portion electricity is disconnected on the part of above-mentioned second ring portion.The live width 1mm at the position of parallel (relatively) in the above-mentioned notch part, the width 1mm of ditch therebetween (part that does not have antenna pattern), the prolongation of the length direction at this relative position is 6mm.
[antenna circuit of comparative example 1]
Except that antenna circuit pattern difference, the same with the foregoing description, obtain the antenna circuit of comparative example 1 usefulness.
Then, the antenna circuit that uses resulting IC tag to use is made UHF frequency band IC tag.
The making of<UHF frequency band IC tag 〉
The IC connecting band (EPC GenII Higgs3) that AlienTechnology company is made is installed in the IC tag of the foregoing description 1, comparative example 1 with on the IC chip connecting portion of antenna circuit; lamination (inserts: inlet) protect near the waterproof paper (protection sheet) of this IC connecting band and this IC connecting band, thereby produce the UHF frequency band IC tag of embodiment 1, comparative example 1 thereon.In addition, the major part of antenna circuit pattern (notch part that comprises above-mentioned second ring portion) is not covered by this waterproof paper and exposes.In addition, each UHF frequency band IC tag considers and is attached on the human body, and the resonance wavelength during with drying (bandwidth) is adjusted into about 0.33~0.3m (frequency: 900MHz~1GHz).
At first, use the urine sensor obtain with UHF frequency band IC tag " embodiment 1 ", " comparative example 1 ", the wavelength characteristic (frequency characteristic) during moistening after drenching during to drying and by water is measured.
The mensuration of<wavelength characteristic (frequency characteristic) 〉
On approbation UHF frequency band IC tag is attached under the state of human body (skin of wrist), and the label tester (Field EngineerAcces sory Kit and Reference Tag) that uses Voyantec company to make is measured frequency characteristic.In addition, so-called when moistening " " is to stick on the wrist to measure under the state that is drenched by water.In addition, what is called " during drying " is to be attached on the wrist to measure under the state that is not drenched by water, and there are not difference in embodiment 1, comparative example 1 when this drying, obtain identical result, therefore represents as the blank (during drying) of experiment.Its result is illustrated in the chart of " Fig. 9 ".
According to this chart as can be known: when blank (drying), have the distance that can communicate by letter about 4~6m with UHF frequency band IC tag for being installed in optimal urine sensor on the human body.Then, there be not do not match " comparative example 1 " of second ring portion of usefulness of impedance when moistening, to have the distance that can communicate by letter about half of above-mentioned blank when dry () as can be known.But, can't see the skew of resonance wavelength.Have do not match " embodiment 1 " of second ring portion of usefulness of impedance as can be known for this and become about 1/4 the distance that can communicate by letter of above-mentioned blank when dry () when this is moistening, resonance wavelength also is offset.
<the Determination of distance that can communicate by letter 〉
Then, as practical more test, the confession of " embodiment 1 ", " comparative example 1 " UHF frequency band IC tag on probation is attached on the human body (wrist), under the state of the liner that is covered with the suction type on the UHF frequency band IC tag, the passive exploitation kit (passive development kit) that uses Alien Technology company to make, measure the distance that can communicate by letter of wavelength 0.315m (frequency 953MHz, output 200mW).
Experiment 1: on wrist, paste the urine sensor UHF frequency band IC tag of drying regime, on label, be covered with the absorbent liner (when being equivalent to drying) of drying regime.
Experiment 2: on wrist, paste the urine sensor UHF frequency band IC tag of the state that drenches, on label, be covered with the absorbent liner (when being equivalent to perspire) of drying regime.
Experiment 3: on wrist, paste the urine sensor UHF frequency band IC tag of the state that drenches, on label, be covered with the absorbent liner (when being equivalent to urinate) of suction state.
These results are shown in following " table 1 ".
[table 1]
Figure BSA00000474650900221
According to table 1 as can be known: also can not communicate when having impedance not match the experiment 3 when being equivalent to urinate of " comparative example 1 " of second ring portion of usefulness with reader.Have for this and to keep communication when impedance does not match the experiment 2 when being equivalent to perspire of " experimental example 1 " of second ring portion of usefulness, only during the experiment 3 when being equivalent to urinate can not with reader communication.
Utilizability on the industry
Urine sensor of the present invention with UHF frequency band IC tag and urine sensor with HF frequency band IC tag and use they one of urinate detection system in medical facilities, nurse facility, care of aged's facility etc., detecting when urinating or when unusual etc., the communication means by communication line etc. can with the patient, by caregiver's etc. position, state notifying (circular) to medical relationship person, caregiver etc.

Claims (9)

1. the UHF frequency band IC tag that the urine sensor is used is characterized in that,
Possess the antenna circuit that IC chip and UHF frequency band are used, the ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms make this antenna circuit resonance wavelength be tuned to provision wavelengths come to communicate with reader,
On the part of above-mentioned ring portion, be formed with the notch part that this ring portion electricity is disconnected.
2. the UHF frequency band IC tag that the urine sensor is used is characterized in that,
Possess the antenna circuit that IC chip and UHF frequency band are used, first ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms make this antenna circuit resonance wavelength be tuned to provision wavelengths come to communicate with reader,
The part of above-mentioned antenna circuit is provided with do not match second ring portion of usefulness of impedance, is formed with the notch part that this second ring portion electricity is disconnected on the part of above-mentioned second ring portion.
3. the HF frequency band IC tag that the urine sensor is used is characterized in that,
Possess the antenna circuit that IC chip and HF frequency band are used, the ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms make this antenna circuit resonance wavelength be tuned to provision wavelengths come to communicate with reader,
On the part of above-mentioned ring portion, be formed with the notch part that this ring portion electricity is disconnected.
4. the HF frequency band IC tag that the urine sensor is used is characterized in that,
Possess the antenna circuit that IC chip and HF frequency band are used, first ring portion of using by the impedance matching that on the part of above-mentioned antenna circuit, forms make this antenna circuit resonance wavelength be tuned to provision wavelengths come to communicate with reader,
The part of above-mentioned antenna circuit is provided with do not match second ring portion of usefulness of impedance, is formed with the notch part that this second ring portion electricity is disconnected on the part of above-mentioned second ring portion.
5. the detection system of urinating is characterized in that,
Possess: the urine sensor, it has aforesaid right requirement 1 described UHF frequency band IC tag; Reader, it communicates with above-mentioned urine sensor by sending and receive the Anneta module of the electric wave of the provision wavelengths corresponding with this UHF frequency band IC tag, and this urine sensor is positioned at the position that separates with this Anneta module; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection signal with urine sends to the outside;
Above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit is changed to from not communicating by letter can communicate by letter the time at above-mentioned reader and communications status between the above-mentioned urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
6. the detection system of urinating is characterized in that,
Possess: the urine sensor, it has aforesaid right requirement 2 described UHF frequency band IC tag; Reader, it communicates with above-mentioned urine sensor by sending and receive the Anneta module of the electric wave of the provision wavelengths corresponding with this UHF frequency band IC tag, and this urine sensor is positioned at the position that separates with this Anneta module; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection signal with urine sends to the outside,
Above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit is changed to from communicating by letter can not communicate by letter the time at above-mentioned reader and communications status between the above-mentioned urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
7. the detection system of urinating is characterized in that,
Possess: the urine sensor, it has aforesaid right requirement 3 described HF frequency band IC tag; Reader, it communicates with above-mentioned urine sensor by sending and receive the Anneta module of the electric wave of the provision wavelengths corresponding with this HF frequency band IC tag, and this urine sensor is positioned at the position that separates with this Anneta module; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection signal with urine sends to the outside,
Above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit is changed to from not communicating by letter can communicate by letter the time at above-mentioned reader and communications status between the above-mentioned urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
8. the detection system of urinating is characterized in that,
Possess: the urine sensor, it has aforesaid right requirement 4 described HF frequency band IC tag; Reader, it communicates with above-mentioned urine sensor by sending and receive the Anneta module of the electric wave of the provision wavelengths corresponding with this HF frequency band IC tag, and this urine sensor is positioned at the position that separates with this Anneta module; Record cell, it writes down the signal message of the above-mentioned urine sensor that this reader reads; And notification unit, its detection signal with urine sends to the outside,
Above-mentioned reader has the timer circuit that sends above-mentioned electric wave with official hour at interval, and above-mentioned notification unit is changed to from communicating by letter can not communicate by letter the time at above-mentioned reader and communications status between the above-mentioned urine sensor, and the detection signal of the urine that is predetermined is sent to the outside.
9. according to each the described detection system of urinating in the claim 5~8, it is characterized in that,
The signal message that above-mentioned notification unit will be recorded in the urine sensor in the above-mentioned record cell appends in the detection signal of above-mentioned urine and sends.
CN2011100945869A 2010-04-16 2011-04-14 UHF and HF frequency band tags for urine sensor and urination detecting system Pending CN102222257A (en)

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