阅读说明：本技术 一种尿液的检测装置及方法 (Urine detection device and method ) 是由 房志东 梅珑 项五八 严维平 程旭初 国佳伟 于 2019-09-24 设计创作，主要内容包括：一种尿液的检测装置及方法,包括发射电路,其安装于尿液的检测装置的发射端,用以生成并发射检测电波；接收电路,其安装于尿液的检测装置的接收端,用于接收检测电波,据以在发射电路和接收电路之间产生一尿液的湿度感应电磁场,据以感应获取尿湿度感应信号；信号处理电路,藕接发射电路和接收电路,用以获取预设检测阀值,以在尿湿度感应信号的值大于预设检测阀值时,处理尿湿度感应信号,据以产生并显示报警信号,解决了现有技术中的存在的设备操作效率低、用户体验较差的技术问题。(A urine detection device and method, including the transmitting circuit, it installs in the transmitting terminal of the urine detection device, in order to produce and launch and detect the electric wave; the receiving circuit is arranged at the receiving end of the urine detection device and used for receiving the detection electric wave, so that a humidity induction electromagnetic field of urine is generated between the transmitting circuit and the receiving circuit, and a urine humidity induction signal is obtained in an induction manner; the signal processing circuit is coupled with the transmitting circuit and the receiving circuit and used for acquiring a preset detection threshold value, processing the urine humidity sensing signal when the value of the urine humidity sensing signal is larger than the preset detection threshold value, and generating and displaying an alarm signal according to the processed urine humidity sensing signal, so that the technical problems of low equipment operation efficiency and poor user experience in the prior art are solved.)

1. A urine testing device, comprising:

a transmitting circuit, which is arranged at the transmitting end of the urine detection device and is used for generating and transmitting detection electric waves;

the receiving circuit is arranged at the receiving end of the urine detection device and used for receiving the detection electric wave, so that a humidity induction electromagnetic field of urine is generated between the transmitting circuit and the receiving circuit, and a urine humidity induction signal is obtained through induction;

and the signal processing circuit is coupled with the transmitting circuit and the receiving circuit and used for acquiring a preset detection threshold value so as to process the urine humidity sensing signal when the value of the urine humidity sensing signal is greater than the preset detection threshold value, and accordingly, an alarm signal is generated and displayed.

2. The urine detection device according to claim 1, wherein the transmission circuit comprises:

a generator having an input terminal connected to the signal processing circuit for generating the detection electric wave;

and the input end of the transmitting component is connected to the output end of the generator and used for transmitting the detection electric wave.

3. The urine detection device according to claim 1, wherein the receiving circuit includes:

a filter receiving circuit, an input end of which is connected to the transmitting end of the transmitting circuit, the filter receiving circuit being configured to generate an electromagnetic filter signal according to the detection electric wave;

and the input end of the receiving amplification circuit is connected with the output end of the filtering receiving circuit, and the receiving amplification circuit is used for processing the electromagnetic filtering signal into a urine wetness sensing signal.

4. The urine detection device according to claim 3, wherein: the filtering receiving circuit comprises:

a receiver for receiving the detection electric wave to form a humidity induction electromagnetic field between the transmitting circuit and the receiving circuit;

and the filter is connected with the receiver and is used for filtering and processing the detected electric wave into a filtered signal.

5. The urine detection device according to claim 4, wherein the filter comprises:

a filter capacitor connected to the receiver;

and the filter resistor is connected to one end of the filter capacitor.

6. The urine detection device according to claim 1, wherein: the signal processing circuit includes:

the input end of the comparison circuit is connected with the output end of the receiving circuit and is used for processing the urine humidity sensing signal into the urine detection signal;

and the input end of the alarm circuit is connected with the output end of the comparison circuit and is used for displaying the alarm signal according to the urine detection signal.

7. The urine detection device according to claim 6, wherein: the comparison circuit includes:

a reference power supply;

a comparison input end connected to the non-inverting input end of the second amplifier and the reference power supply for inputting the urine humidity sensing signal;

and the voltage comparison device is connected to the inverting input end of the second amplifier and used for generating an alarm signal.

8. The urine detection device according to claim 7, wherein: the voltage comparison device comprises:

processing the power supply;

the second amplifier;

a first comparison resistor, the first end of which is connected with a power supply and the second end of which is connected with the second amplifier;

and the second comparison resistor is connected with the first comparison resistor in parallel, and the first comparison resistor and the second comparison resistor are used for setting a detection threshold value.

9. The urine detection device according to claim 6, wherein: the alarm circuit includes:

an alarm power supply;

the alarm is connected with the output end of the second amplifier and the alarm power supply and used for giving an alarm when the urine detection signal value is larger than the detection threshold value;

and the current limiting resistor is connected between the second amplifier and the alarm.

10. A method for detecting urine, comprising the urine detection device according to any one of claims 1 to 8, comprising:

generating and transmitting a detection electric wave with a transmission circuit;

receiving the detection electric wave by a receiving circuit, generating a humidity induction electromagnetic field of urine between the transmitting circuit and the receiving circuit according to the detection electric wave, and acquiring a urine humidity induction signal by induction;

and acquiring a preset detection threshold value by using a signal processing circuit, and processing the urine humidity sensing signal when the value of the urine humidity sensing signal is greater than the preset detection threshold value so as to generate and play an alarm signal.

Technical Field

The invention relates to a signal acquisition technology of nursing equipment, in particular to a urine detection device and a method.

Background

In recent years, aging is more and more advanced, and nursing equipment needs to rapidly detect and alarm urine and wet urine; urine detection technique among the prior art need place on user's sheet, is influential to user's travelling comfort, secondly when the urine is not wet has a small amount of urine, it has certain difficulty to detect, still need regularly wash or change urine detection device, another kind detects through humidity transducer, the sensor needs to be dressed, it is loaded down with trivial details that nursing staff operates the user, the user dresses the back, user's experience sense produces certain influence

In conclusion, the urine detection technology in the prior art has the technical problems of low equipment operation efficiency and poor user experience.

Disclosure of Invention

In view of the above disadvantages of the prior art, an object of the present invention is to provide a urine detection device and method, which are used to solve the technical problems of low operation efficiency of the device and poor user experience in the prior art. To achieve the above and other related objects, the present invention provides a urine test device, comprising: a transmitting circuit, which is installed at the transmitting end of the urine detection device and is used for generating and transmitting detection electric waves; the receiving circuit is arranged at the receiving end of the urine detection device and used for receiving the detection electric wave, so that a humidity induction electromagnetic field of urine is generated between the transmitting circuit and the receiving circuit, and a urine humidity induction signal is obtained in an induction manner; and the signal processing circuit is coupled with the transmitting circuit and the receiving circuit and used for acquiring a preset detection threshold value, processing the urine humidity sensing signal when the value of the urine humidity sensing signal is greater than the preset detection threshold value, and generating and playing an alarm signal according to the processed urine humidity sensing signal.

In one embodiment of the present invention, a transmitting circuit includes: a generator, the input end of which is connected to the signal processing circuit, for generating a detection electric wave; and the input end of the transmitting component is connected to the output end of the generator and used for transmitting the detection electric wave.

In one embodiment of the present invention, a receiving circuit includes: the input end of the filtering receiving circuit is connected with the transmitting end of the transmitting circuit, and the filtering receiving circuit is used for generating an electromagnetic filtering signal according to the detection electric wave; and the input end of the receiving amplifying circuit is connected with the output end of the filtering receiving circuit, and the receiving amplifying circuit is used for processing the electromagnetic filtering signal into a urine wetness sensing signal.

In one embodiment of the present invention, a filter receiving circuit includes: a receiver for receiving the detection electric wave to form a humidity induction electromagnetic field between the transmitting circuit and the receiving circuit; and the filter is connected with the receiver and used for filtering the detection electric wave into a filtering signal.

In one embodiment of the present invention, a filter includes: a filter capacitor connected to the receiver; and the filter resistor is connected to one end of the filter capacitor.

In one embodiment of the present invention, a signal processing circuit includes: the input end of the comparison circuit is connected with the output end of the receiving circuit and is used for processing the urine humidity sensing signal into a urine detection signal; and the input end of the alarm circuit is connected with the output end of the comparison circuit and is used for displaying an alarm signal according to the urine detection signal.

In one embodiment of the present invention, a comparison circuit includes: a reference power supply; a comparison input end connected to the non-inverting input end of the second amplifier and the reference power supply for inputting the urine wetness sensing signal; and the voltage comparison device is connected to the inverting input end of the second amplifier and is used for generating an alarm signal.

In one embodiment of the present invention, a voltage comparator includes: processing the power supply; a second amplifier; the first end of the first comparison resistor is connected with the power supply, and the second end of the first comparison resistor is connected with the second amplifier; and the second comparison resistor is connected with the first comparison resistor in parallel, and the first comparison resistor and the second comparison resistor are used for setting a detection threshold value.

In one embodiment of the present invention, an alarm circuit includes: an alarm power supply; the alarm is connected with the output end of the second amplifier and the alarm power supply and used for giving an alarm when the urine detection signal value is larger than the detection threshold value; and the current limiting resistor is connected between the second amplifier and the alarm.

In one embodiment of the present invention, a urine detection device and method includes: generating and transmitting a detection electric wave with a transmission circuit; receiving the detection electric wave by the receiving circuit, generating a humidity induction electromagnetic field of urine between the transmitting circuit and the receiving circuit, and acquiring a urine humidity induction signal by induction; and acquiring a preset detection threshold value by using the signal processing circuit, and processing the urine humidity sensing signal when the value of the urine humidity sensing signal is larger than the preset detection threshold value so as to generate and display an alarm signal.

As described above, the urine detection device and method provided by the present invention have the following beneficial effects:

the urine detection device and the urine detection method provided by the invention realize non-contact type urine non-wetting detection in an electromagnetic signal mode, the urine detector designed based on the scheme can detect urine non-wetting in clothes on the surface of the clothes, the comfort of a user is emphasized, and the workload of a nursing worker is reduced by a certain amount.

Drawings

FIG. 1 is a schematic view showing the connection of the urine test device of the present invention.

Fig. 2 shows a connection diagram of specific components of the transmitting circuit 1 in fig. 1 in one embodiment.

Fig. 3 is a connection diagram of specific components of the receiving circuit 2 in fig. 1 in one embodiment.

Fig. 4 is a schematic diagram illustrating connection of specific components of the signal processing circuit 3 in fig. 1 in an embodiment.

FIG. 5 is a flow chart illustrating the steps of the urine detection method of the present invention.

Description of the element reference numerals

1 transmitting circuit

2 receiving circuit

3 signal processing circuit

11 generators

12 transmitting assembly

R1 first resistor

R2 second resistor

R3 third resistor

R4 fourth resistor

C1 first capacitor

C2 second capacitor

C3 third capacitor

J1 emitter

U1d waveform amplifier

21 filter receiving circuit

22 receiving amplifying circuit

211 filter

R5 fifth resistor

R6 sixth resistor

R7 filter resistor

R8 eighth resistor

C4 filter capacitor

C5 fifth capacitor

D1 rectifier diode

D2 clamping diode

J2 receiver

31 comparison circuit

32 alarm circuit

VCC reference power supply

TP1 comparison input terminal

311 comparison voltage device

U1B second amplifier

R9 first comparative resistor

R10 second comparison resistor

R11 current limiting resistor

C6 sixth capacitor

LED1 alarm

1' diaper

Description of step designations

FIGS. 5S 1-S3

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 5. It should be understood that the structures shown in the drawings and described herein are only for the purpose of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that the present invention is not limited thereto. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1, which is a schematic connection diagram of a urine detection device of the present invention, as shown in fig. 1, the urine detection device includes a transmitting circuit 1, a receiving circuit 2 and a signal processing circuit 3, the transmitting circuit 1 is installed at a transmitting end of the urine detection device for generating and transmitting a detection electric wave, in an embodiment, the transmitting circuit 1, such as a signal generating circuit, and the signal processing circuit 3, such as a signal monitoring circuit, of the present invention can be implemented by using different types of chips or resistive-capacitive elements, for example. Part of comparator circuits in the scheme can be replaced by triode circuits, and the functions of the comparator circuits can be directly or indirectly realized; the receiving circuit 2 is installed at a receiving end of the urine detection device, and is used for receiving detection electric waves, so that a humidity induction electromagnetic field of urine is generated between the transmitting circuit 1 and the receiving circuit 2, and accordingly urine humidity induction signals of the diaper 1' are obtained in an induction mode; a signal processing circuit 3 coupled to the transmitting circuit 1 and the receiving circuit 2 for obtaining a predetermined detection threshold, and processing the urine humidity sensing signal when the value of the urine humidity sensing signal is greater than the predetermined detection threshold, thereby generating and displaying an alarm signal, in an embodiment, when the urine humidity sensing signal approaches a space magnetic field between the transmitting circuit 1 and the receiving circuit 2, for example, when the urine humidity is absent, a certain influence is generated on the magnetic field between the transmitting circuit 1 and the receiving circuit 2, and the signal value of the detection circuit does not reach the threshold value, and for example, when the urine humidity is present, an influence is generated on the magnetic field between the transmitting circuit 1 and the receiving circuit 2, and when the set threshold value is reached, the device gives an alarm to the outside to remind the user that the urine is absent, in an embodiment, the urine detection device can detect the urine humidity of, for example, a bed sheet or the like, in this embodiment, the transmitting circuit 1 and the receiving circuit 2 of the urine detection device can adopt a non-contact detection method such as electromagnetic field induction to detect, for example, urine retention, a nursing bed sheet, clothes worn by a caregiver, etc., the caregiver to be detected can avoid posture adjustment and the caregiver from touching urine, and in this embodiment, the urine detection device can place the detected portion in the urine moisture detection electromagnetic field by aligning the transmitting circuit 1 and the receiving circuit 2 with, for example, urine retention, a nursing bed sheet, and clothes worn by a caregiver.

Referring to fig. 2, which is a connection diagram of specific components of the transmitting circuit 1 in fig. 1 in an embodiment, as shown in fig. 2, the transmitting circuit 1 includes a generator 11 and a transmitting element 12, the generator 11 has an input terminal connected to the signal processing circuit 3 for generating a detection electric wave, in an embodiment, the transmitting circuit may generate a voltage division by a first resistor R1 and a second resistor R2, the first resistor R1 is connected to the second resistor R2 for obtaining an effective value of a waveform, in an embodiment, the third resistor R3 is connected to an anode of the first capacitor C1, the third resistor R3 and the first capacitor C1 may be charged and discharged, in this embodiment, the second capacitor C2 is a feedback capacitor, the second capacitor is connected to a non-inverting input terminal of the waveform amplifier, the second capacitor C2 is used for oscillating, the third capacitor C3 is used for blocking direct current, the fourth resistor R4 is impedance matched, the third capacitor C3 is connected to the fourth resistor R4, in one embodiment, the voltage dividing resistor may be, for example, a resistor of a conductor connected in series with a circuit, and a voltage dividing resistor is connected in series with the circuit to divide the total voltage, so that a part of the voltage will drop on the voltage dividing resistor, for example, and the voltage across the part of the circuit will be reduced, in one embodiment, a waveform generator, such as a square wave generating circuit or a sine wave generating circuit, can generate, for example, square wave and sine wave outputs, the waveform generator may be formed by, for example, positive feedback on the basis of, for example, an amplifying circuit, in one embodiment, the waveform generator is a core circuit of various waveform generators and signal sources, and the signal generating circuit may generate output signals of various waveforms based on the principle of self-excited oscillation to generate, for example, sine waves, triangle, sawtooth, square waves, rectangular waves, pulse sequences, noise and the like, in one embodiment, the waveform of the square wave, such as a rectangular wave, can be triangular, for example, and in one embodiment, adjusting, for example, a sliding rheostat can also change, for example, the shape ratio and size of the waveform. In one embodiment, positive feedback may be added to, for example, an amplifying circuit to generate, for example, a square wave, and the amplifying circuit may include, for example, a positive feedback network circuit, an amplifying circuit, and the like; the transmitter module 12, the input terminal of which is connected to the output terminal of the generator 11, is used to transmit the detection electric wave, in one embodiment, the waveform amplifier U1d and other devices form a waveform generator and a transmitting circuit, for example, wherein the transmitter J1 can be a transmitting antenna, for example, and the transmitter J1 is connected to the fourth resistor R4.

Referring to fig. 3, which is a connection diagram of specific components of the receiving circuit 2 in fig. 1 in an embodiment, as shown in fig. 3, the receiving circuit includes a filter receiving circuit 21 and a receiving amplifying circuit 22, the filter receiving circuit 21 has an input terminal connected to the transmitting terminal of the transmitting circuit 1, the filter receiving circuit 21 is configured to generate an electromagnetic filter signal according to the detected electric wave, in an embodiment, a reference circuit may be formed by, for example, a fifth resistor R5 and a sixth resistor R6, in this embodiment, a fifth resistor R5 and a sixth resistor R6 are connected to the non-inverting input terminal of the first amplifier U1A, in an embodiment, a fourth capacitor C4 and a seventh resistor R7 are connected, and a fourth capacitor C4 and a seventh resistor R7 may form, for example, a filter circuit; the input end of the receiving amplifying circuit 22 is connected to the output end of the filter receiving circuit 2, the receiving amplifying circuit 22 is configured to process the electromagnetic filtering signal into a urine wetness sensing signal, in an embodiment, the eighth resistor R8 and the seventh resistor R7 constitute an amplifying circuit, in this embodiment, the eighth resistor R8 is connected to the inverting input end of the first amplifier U1A, the fifth capacitor C5 is isolated from direct current and is connected to alternating current, in this embodiment, the fifth capacitor C5 is connected to the output end of the second amplifier U1A, the fifth capacitor C5 is connected to the eighth resistor R8, in an embodiment, the rectifier diode D1 is configured to rectify current, the rectifier diode D1 is connected to the fifth capacitor C5, and in an embodiment, the rectifier diode is configured to be a semiconductor device that converts alternating current into direct current. The diode has a one-way conductivity. In the circuit, current can only flow in from the anode and flow out from the cathode of the diode. In the present embodiment, the signal specification may be, for example, a positive half cycle, in one embodiment, the clamping diode D2 may function as a clamp, the clamping diode D2 is connected to the fifth capacitor C5, and in one embodiment, the rectifying diode may be used in a semiconductor device for converting ac power to dc power. The diode has a one-way conductivity. In the circuit, current can flow in from the anode and flow out from the cathode of the diode. The rectifier diode may comprise, for example, a PN junction comprising, for example, two terminals, an anode and a cathode.

Referring to fig. 3, the filter receiving circuit 21 includes a receiver J2 and a filter 211, the receiver J2 is used for receiving the detection electric wave to form a humidity-induced electromagnetic field between the transmitting circuit 1 and the receiving circuit 2; the filter 211 is connected to the receiver J2 for filtering the detection wave into a filtered signal, in one embodiment, the first amplifier U1A and other devices may form a signal filtering and amplifying circuit, in one embodiment, the receiver J2 may be, for example, a receiving antenna, and in one embodiment, common filtering circuits include, for example, passive filtering and active filtering. In one embodiment, the filter circuit is a passive filter circuit if the filter circuit elements are composed of, for example, passive elements (resistors, capacitors, inductors). In one embodiment, the main forms of passive filtering are, for example, capacitive filtering, inductive filtering, and complex filtering.

Referring to fig. 3, the filter 211 includes a filter capacitor C4 and a filter resistor R7, the filter capacitor C4 is connected to the receiver J2; a filter resistor R7 connected to one end of the filter capacitor C4, in one embodiment, the filter 211 such as a filter circuit can be used to filter out the ripple in the rectified output voltage, and the filter capacitor C4 and the filter resistor R7 can be formed by connecting reactance elements such as a resistor, a capacitor, or an inductor in series with a load, for example, and various filter circuits formed by connecting a capacitor or an inductor in series with a load, for example, in parallel with a load resistor, for example.

Referring to fig. 4, which is a connection diagram of specific components of the signal processing circuit 3 in fig. 1 in an embodiment, as shown in fig. 4, the signal processing circuit 3 includes a comparison circuit 31 and an alarm circuit 32, the comparison circuit 31 has an input terminal connected to an output terminal of the receiving circuit 2 for processing the urine humidity sensing signal into a urine detection signal, in an embodiment, a first comparison resistor R9 and a second comparison resistor R10 provide a comparison voltage, in this embodiment, the first comparison resistor R9 and the second comparison resistor R10 are connected to opposite-phase input terminals of an amplifier, in an embodiment, the pull-down resistor R11 may pull down the signal, the pull-down resistor is connected to a non-phase input terminal of the amplifier, the sixth capacitor C6 may filter the electromagnetic detection signal, and the LED1 is a light emitting diode connected to the current limiting resistor R12; and the input end of the alarm circuit 32 is connected with the output end of the comparison circuit 31 and used for sending out an alarm signal according to the urine detection signal.

Referring to fig. 4, the comparing circuit 31 includes a reference power VCC, a comparing input terminal TP1 and a comparing voltage device 311; a sensing input TP1 connected to the non-inverting input of the second amplifier U1B for inputting urine wetness sensing signal, in one embodiment, the rectifying diode can convert ac power into dc power, in one embodiment, common amplifier chips are, for example, LM324, LM358, uA741, TL081\2\3\4, OP07, OP, etc.; the comparison voltage device 311 is connected to the inverting input terminal of the second amplifier U1B for generating an alarm signal, and in one embodiment, the voltage comparator can compare the magnitudes of the two input voltages to determine which of the two input voltages is larger.

Referring to fig. 4, the comparison voltage device 311 includes a second amplifier U1B, a first comparison resistor R9 and a second comparison resistor R10; a second amplifier U1B; a first comparison resistor R9, having a first end connected to a reference power source VCC and a second end connected to the second amplifier U1B; and a second comparison resistor R10 connected in series with the first comparison resistor R9, the first comparison resistor R9 and the second comparison resistor R10 being used to set the detection threshold, in one embodiment, the result of the comparison is represented by the high and low of the output voltage. The voltage comparator may be, for example, an integrated comparator, or may be, for example, an operational amplifier. When the comparator is connected with digital circuit, it must add additional circuit, and adopts clamping measure to its output voltage to make its high and low output levels meet the requirements of digital circuit logic level.

Referring to fig. 4, the alarm circuit 32 includes an alarm power VCC, an alarm LED1, and an alarm power VCC; the alarm LED1 is connected to the output end of the second amplifier and the alarm power supply VCC, the alarm LED1 is used for alarming when the urine detection signal value is larger than the detection threshold value, in an embodiment, the second amplifier U1B and other devices form a signal processing circuit such as a comparator circuit, the TP1 inputs a stable direct current output by the receiving circuit, in this embodiment, the light emitting diode LED1 displays whether there is urine, the LED1 is on when there is no urine, the LED1 is off when there is urine, and the current limiting resistor R12 is connected between the second amplifier U1B and the alarm LED 1.

Referring to fig. 5, a flow chart of a urine detection method according to the present invention is shown, and as shown in fig. 5, the urine detection method includes: s1, the detection electric wave is generated and transmitted by the transmitting circuit 1, in one embodiment, the transmitting circuit 1, such as the signal generating circuit, and the signal processing circuit 3, such as the signal monitoring circuit, can be implemented by using different kinds of chips or resistive-capacitive elements. Part of comparator circuits in the scheme can be replaced by triode circuits, and the functions of the comparator circuits can be directly or indirectly realized; s2, receiving the detection electric wave by the receiving circuit 2, so as to generate a humidity induction electromagnetic field of urine between the transmitting circuit 1 and the receiving circuit 2, thereby obtaining a urine humidity induction signal by induction, in one embodiment, the invention can generate a signal such as a square wave or a sine-cosine wave by the signal generating circuit based on the reflection and refraction generated during the transmission process of the liquid such as urine medium in the free space of the electromagnetic field, and act on the transmitting circuit 1 such as the transmitting electrode and the receiving circuit 2 such as the receiving electrode, so as to generate an electromagnetic field in a specific area; s3, the signal processing circuit 3 obtains the preset detection threshold value, when the value of the urine humidity sensing signal is larger than the preset detection threshold value, the urine humidity sensing signal is processed, and an alarm signal is generated and displayed, in an embodiment, when the urine humidity sensing signal approaches the space magnetic field between the transmitting circuit 1 and the receiving circuit 2, for example, when the urine humidity is not in the urine at the moment, a certain influence is generated on the magnetic field between the transmitting circuit 1 and the receiving circuit 2, the signal value of the detection circuit does not reach the valve value, for example, when the urine humidity is in the urine at the moment, the influence is generated on the magnetic field between the transmitting circuit 1 and the receiving circuit 2, and when the set valve value is reached, the device prompts an alarm to the outside to remind a user that the urine humidity is in the urine.

The above description of illustrated embodiments of the invention, including what is described in the abstract of the specification, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.

The invention provides a urine detection device and a method for detecting the state of urine without wetting, and provides a method for detecting the presence or absence of urine outside through the change of a space electromagnetic field generated by a signal generation device on two electrodes and an implementation scheme. The design is suitable for detecting urine under clothes through the surface of cotton clothes, and is suitable for detecting urine of paper diapers worn by old people and children, the invention realizes non-contact urine detection through electromagnetic signals, the urine detector designed based on the scheme can detect urine in clothes on the surface of clothes, and pays attention to the comfort of users, the urine detection device provided by the invention has the advantages that the workload of a nursing worker is reduced by a certain amount, the urine detection device can accurately judge whether the urine is not wet or not under the premise of not changing the structure and the appearance of the urine, the operation is simpler, the urine detection device is free from maintenance and wearing, and a patient feels more comfortable.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.