CN209947071U

CN209947071U - Wireless bed-wetting reminder with voltage monitoring and WIFI functions

Info

Publication number: CN209947071U
Application number: CN201920877319.0U
Authority: CN
Inventors: 汤承桢
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-01-14
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to a baby or old man bed-wetting monitored control system, concretely relates to wireless bed-wetting reminder of electrified pressure monitoring and WIFI function. Take voltage monitoring and WIFI function's wireless bed-wetting reminder includes: the device comprises a detection transmitting unit and a receiving reminding unit; the detection transmitting unit comprises a humidity detector U1, a wireless transmitting circuit, a power supply circuit and a voltage monitoring management circuit; the output end of the humidity detector U1 is connected with the input end of the wireless transmitting circuit, the output end of the voltage monitoring management circuit is connected with the input end of the wireless transmitting circuit, and the power circuit is used for supplying power to the detecting and transmitting unit. The receiving reminding unit comprises: the device comprises a voltage conversion circuit, a wireless receiving circuit, an audible and visual alarm circuit and a WIFI transmitting function circuit; the wireless receiving circuit is used for receiving signals sent by the wireless transmitting circuit, and the input end of the sound-light alarm circuit is connected with the output end of the wireless receiving circuit.

Description

Wireless bed-wetting reminder with voltage monitoring and WIFI functions

Technical Field

The utility model relates to a baby or old man bed-wetting monitored control system, concretely relates to wireless bed-wetting reminder of electrified pressure monitoring and WIFI function.

Background

Statistically, enuresis occurs in 20% of children over 4 years old, and occasional enuresis occurs in 5% of children over 10 years old. Although enuresis is not a big problem, it often brings great influence to the psychology of children and parents. Along with the increasing improvement of the life quality of people, the health care problem of infants and old people undoubtedly becomes a big focus of society.

The tradition is looked over the mode and is the manual inspection, touches or observes with the eye with the hand, nevertheless all has the defect, still needs the very big patience and the care of guardian, if will reach the bed-wetting effect, needs very high check-out frequency, has also improved guardians' intensity of labour undoubtedly. On the other hand, the infant bed-wetting is also easy to cause crotch eczema, cold, bronchitis, crying and the like; the old people are easy to cause bedsore and the like due to physical function degradation and incontinence and bed wetting, and great harm is brought to the health of infants and old people.

Some bed-wetting reminders exist in the original market, but some reminders do not have the WIFI function, alarm information is wirelessly transmitted in a room, and parents or guardians cannot realize real-time monitoring in different places; some reminder detection unit battery voltage is too low, all can not detect the urine return circuit, also causes unable real time monitoring.

Disclosure of Invention

Therefore, a bed wetting reminder is developed for solving the above phenomena, and if the bed wetting detects that the battery voltage is too low, an alarm is sent out in time to ensure that a guardian replaces the battery; if the bed wetting phenomenon occurs, an alarm is given out in time to remind a guardian to replace a bed sheet in time to keep the bed clean, thereby being beneficial to the health of infants and incontinent old people.

According to the utility model provides a technical scheme, a wireless bed of wetting the reminiscences of electrified voltage monitoring and WIFI function, the wireless bed of wetting the reminiscences of electrified voltage monitoring and WIFI function includes: the device comprises a detection transmitting unit and a receiving reminding unit;

the detection transmitting unit comprises a humidity detector U1, a wireless transmitting circuit, a power supply circuit and a voltage monitoring management circuit; the output end of the humidity detector U1 is connected with the input end of the wireless transmitting circuit, the output end of the voltage monitoring management circuit is connected with the input end of the wireless transmitting circuit, and the power circuit is used for supplying power to the detecting and transmitting unit.

The receiving reminding unit comprises: the device comprises a voltage conversion circuit, a wireless receiving circuit, an audible and visual alarm circuit and a WIFI transmitting function circuit; the wireless receiving circuit is used for receiving signals sent by the wireless transmitting circuit, the input end of the sound-light alarm circuit is connected with the output end of the wireless receiving circuit, and the input end of the WIFI transmitting function circuit is connected with the output end of the wireless receiving circuit.

Further, the power supply circuit comprises a battery pack BT1, an electrolytic capacitor C1 is connected between the positive pole and the negative pole of the battery pack in parallel, the positive pole of the electrolytic capacitor C1 is connected with the positive pole of the battery pack BT1, and the negative pole of the electrolytic capacitor C1 is connected with the negative pole of the battery pack BT1 and is grounded.

Further, the wireless transmitting circuit comprises a transmitting module U2, a first resistor R1, a first triode Q1 and a first diode D1;

the base electrode of the first triode Q1 is connected with the output end of the moisture detector U1, the collector electrode of the first triode Q1 is connected with the first input end of the transmitting module U2, the emitter electrode of the first triode Q1 is connected with the power supply, and a first resistor R1 is connected between the emitter electrode of the first triode Q1 and the base electrode of the first triode Q1; the power supply end of the sending module U2 is connected with the cathode of the first diode D1, the anode of the first diode D1 is connected with the power supply, and the ground end of the sending module U2 is grounded.

Further, the voltage monitoring management circuit comprises an operational amplifier U3A, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a zener diode D2, a second triode Q2 and a third triode Q3;

the positive phase input end of the operational amplifier U3 is connected with a power supply VCC in a pull-up mode through a second resistor R2 and grounded in a pull-down mode through a voltage stabilizing diode D2;

after the third resistor R3 and the fourth resistor R4 are sequentially connected in series, one end of the third resistor R3 is connected with the power supply VCC, one end of the fourth resistor R4 is grounded, the connection of the third resistor R3 and the fourth resistor R4 is connected with the inverting input end of the operational amplifier U3A, the output end of the operational amplifier U3A is connected with one end of a fifth resistor R5, the other end of the fifth resistor R5 is connected with the base electrode of the second triode Q2, the emitter of the second triode Q2 is grounded, the collector of the second triode Q2 is connected with one end of a seventh resistor R7, the other end of the seventh resistor R7 is connected with the base of a third triode Q3, the collector of the third triode Q3 is connected with the second input end of the sending module U2, the emitter of the third triode Q3 is connected with a power supply VCC, and the sixth resistor R6 is connected between the emitter of the third triode Q3 and the base of the third triode Q3.

Further, the wireless receiving circuit includes a receiving module U5, the receiving module U5 includes a power source terminal, a ground terminal, a first output terminal and a second output terminal, the first output terminal of the receiving module U5 wirelessly corresponds to the first input terminal of the sending module U2, and the second output terminal of the receiving module U5 wirelessly corresponds to the second input terminal of the sending module U2.

Furthermore, the sound and light alarm circuit comprises a bed wetting indication circuit, an under-voltage indication circuit and a voice alarm circuit;

the input end of the bed wetting indicating circuit is connected with the first output end of the receiving module U5, the under-voltage indicating circuit is connected with the second output end of the receiving module U5, and the alarm circuit is respectively connected with the bed wetting indicating circuit and the under-voltage indicating circuit.

Further, the bed wetting indicating circuit comprises a bed wetting indicating lamp G2, a fourth triode Q4, an eighth resistor R8 and a ninth resistor R9; one end of the eighth resistor R8 is an input end of the bed wetting indicating circuit, the other end of the eighth resistor R8 is connected with a base electrode of a fourth triode Q4, an emitting electrode of the fourth triode Q4 is grounded, a collecting electrode of the fourth triode Q4 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with a negative electrode of the bed wetting indicating lamp G2, and a positive electrode of the bed wetting indicating lamp G2 is connected with a +5V power supply;

one end of the eighth resistor R8 is an input end of the bed wetting indicating circuit, the other end of the eighth resistor R8 is connected with a base of a fourth triode Q4, an emitting electrode of the fourth triode Q4 is grounded, a collecting electrode of the fourth triode Q4 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with a negative electrode of the bed wetting indicating lamp G2, and a positive electrode of the bed wetting indicating lamp G2 is connected with a +5V power supply.

Further, the undervoltage indicating circuit includes undervoltage indicating lamp G1, fifth triode Q5, tenth resistance R10 and eleventh resistance R11, the one end of eleventh resistance R11 is undervoltage indicating circuit's input, and the base of fifth triode Q5 is connected to the other end, the emitter ground of fifth triode Q5, the one end of tenth resistance R10 is connected to the collecting electrode, and the other end of tenth resistance R10 is connected undervoltage indicating lamp G1's negative pole, undervoltage indicating lamp G1's anodal + 5V's power of connecting.

Further, the voice alarm circuit comprises a voice function IC chip U6 and a loudspeaker SP1, and the voice function IC chip U6 comprises a first input end, a second input end, a first driving end and a second driving end. The first input end of the voice function IC chip U6 is connected with a collector of a fourth triode Q4 of the bed wetting indicating circuit and used for collecting voltage on the collector of the fourth triode Q4, the voice function IC chip U6 comprises a collector of a second input end connected with a fifth triode Q5 of the undervoltage indicating circuit and used for collecting voltage on the collector of the fifth triode Q5, the loudspeaker SP1 is connected between the first driving end and the second driving end, the ground end of the voice function IC chip U6 is grounded, the power end is connected with a +5V power supply, and a fourth capacitor C4 is connected between the power end and the ground end.

Further, the WIFI transmitting function circuit comprises a WIFI module U7 and a single chip microcomputer;

the single chip microcomputer comprises a first acquisition port, a second acquisition port, a first data transmission port RX and a second data transmission port TX, the first acquisition port of the single chip microcomputer is connected with a first output end of a receiving module U5, and the second acquisition port of the single chip microcomputer is connected with a second output end of a receiving module U5; the first data transmission port RX is connected to a first data receiving terminal of the WIFI module U7, and the second data transmission port TX is connected to a second data receiving terminal of the WIFI module U7.

From the above, it can be seen that the utility model provides a technical scheme compares with prior art and possesses following advantage:

the invention provides a wireless bed-wetting reminder, which is characterized in that firstly, the human body is safely and reliably contacted, and a detection sending unit adopts a battery for power supply. And secondly, PT2262/2272 is adopted for wireless sending and receiving, the wireless sending and receiving is a pair of infrared remote control sending/receiving with address and data coding functions, an LC oscillating circuit and amplification shaping are arranged in a chip, an output data signal is a decoded high-level signal, information detection is correct, use and convenience are achieved, and the cost is low. Moreover, detector voltage monitoring circuit has been increased to combine the WIFI function, through APP, can let guardianship personnel in time inquire data information, conveniently look after, more be favorable to baby and old man's health.

The product has simple structure, low cost and diversified alarm modes, can be widely applied to families, hospitals, nursing homes and the like, greatly lightens the labor intensity of guardians, and improves the health level of guardians such as infants, old people and the like.

Drawings

Fig. 1 is a circuit diagram of the detection transmitting unit of the present invention.

Fig. 2 is a circuit diagram of the receiving reminding unit of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings. The terms "inner" and "outer" are used to refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 and fig. 2, the present invention includes: the device comprises a detection transmitting unit and a receiving reminding unit.

The detection transmitting unit includes: the humidity monitoring device comprises a humidity detector U1, a wireless transmitting circuit, a power supply circuit and a voltage monitoring management circuit;

the power supply circuit comprises a battery BT1, an electrolytic capacitor C1 is connected in parallel between the positive pole and the negative pole of the battery, the positive pole of the electrolytic capacitor C1 is connected with the positive pole of the battery BT1, and the negative pole of the battery C1 is connected with the negative pole of the battery BT1 and is grounded. Specifically, the battery BT1 is 27A/12V, and the electrolytic capacitor C1 adopts a 100uF/50V electrolytic capacitor for filtering, so that the power supply working voltage of the wireless mode transmitting circuit and the voltage monitoring management circuit is stable.

The wireless transmission circuit includes: the wireless transmitting circuit comprises a transmitting module U2 and a peripheral circuit, wherein the peripheral circuit of the wireless transmitting circuit comprises a first resistor R1, a first triode Q1 and a first diode D1, the transmitting module U2 preferably selects a PT2262 coding and decoding circuit produced by Taiwan Pucheng company, the transmitting module U2 comprises a power supply end, a grounding end, a first input end, a second input end and an antenna, a coding signal sent by the transmitting module U2 is a complete code word formed by an address code, a data code and a synchronous code, a debugging mode ASK, a transmitting frequency 315M and a transmission distance of about 150 meters. The wireless remote control switch has the advantages of low price, low power consumption, convenient use and easy frequency point debugging, and is widely used in the fields of wireless remote control switches, remote control toys, rolling doors and the like.

It can be understood that if urine is generated on the moisture detector U1, the moisture detector U1 forms a conductor loop through the urine, the first transistor Q1 is turned on, the collector of the first transistor Q1 changes from low level to high level, and outputs the high level to the first input terminal of the sending module U2, when the first input terminal of the sending module U2 is high level, the sending module U2 is triggered to transmit, and the sending module U2 sends wireless data.

The voltage monitoring management circuit comprises an operational amplifier U3A, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a voltage-stabilizing diode D2, a second triode Q2 and a third triode Q3; the positive phase input end of the operational amplifier U3 is connected with a power supply VCC in a pull-up mode through a second resistor R2, and is grounded in a pull-down mode through a voltage stabilizing diode D2, preferably, the voltage stabilizing diode D2 adopts an 8.2V voltage stabilizing tube for voltage stabilization, so that a reference voltage of 8.2V is provided for the operational amplifier U3A; the third resistor R3 and the fourth resistor R4 are configured to divide a voltage of a power source VCC, after the third resistor R3 and the fourth resistor R4 are sequentially connected in series, one end of the third resistor R3 is connected to the power source VCC, one end of the fourth resistor R4 is grounded, a connection end of the third resistor R3 and the fourth resistor R4 is connected to the inverting input end of the operational amplifier U3A, an output end of the operational amplifier U3A is connected to one end of a fifth resistor R5, the other end of the fifth resistor R5 is connected to the base of the second triode Q2, an emitter of the second triode Q2 is grounded, a collector of the second triode Q2 is connected to one end of a seventh resistor R7, the other end of the seventh resistor R7 is connected to the base of the third triode Q3, a collector of the third triode Q3 is connected to the second input end of the sending module U2, an emitter of the third triode Q3 is connected to the power source VCC, and an emitter of the third triode Q3 and the sixth resistor Q3 are connected to the base of the sixth triode Q6 .

It can be understood that, the third resistor R3 and the fourth resistor R4 are used to divide the voltage of the power VCC, if the voltage of the power VCC decreases and changes, the voltage across the fourth resistor R4 also decreases, and the voltage at the inverting input terminal of the operational amplifier U3A decreases, so that the output terminal of the operational amplifier U3A outputs a high level, the base loop of the second transistor Q2 is turned on, the collector of the second transistor Q2 is pulled low due to the conduction, when the second transistor Q2 is turned on, the third transistor Q3 is also turned on, the collector of the third transistor Q3 is pulled high and is input to the second input terminal of the sending module U2, and the second input terminal of the sending module U2 is at a high level, so that the sending module U2 sends wireless data.

In summary, it can be seen that, once the detecting and transmitting unit detects the urine loop and the battery low voltage, the first input terminal and the second input terminal of the sending module U2 generate a high level, and wirelessly send the high level signal.

The utility model discloses a receive and remind unit includes: the device comprises a voltage conversion circuit, a wireless receiving circuit, an audible and visual alarm circuit and a WIFI transmitting function circuit;

the voltage conversion circuit is preferably an AC-DC voltage reduction power supply module and is used for converting 220V voltage of mains supply into 5V voltage and outputting +5V working voltage to supply power to the wireless receiving circuit, the sound-light alarm circuit and the WIFI transmitting function circuit.

The wireless receiving circuit is used for receiving signals sent by the wireless transmitting circuit in the detection transmitting unit, the wireless receiving circuit comprises a receiving module U5, the receiving module U5 preferably selects PT2272, the receiving sensitivity is-98 db, the receiving module U5 comprises a power supply end, a grounding end, a first output end and a second output end, the first output end of the receiving module U5 corresponds to the first input end of the sending module U2, the second output end of the receiving module U5 corresponds to the second input end of the sending module U2, and when the first input end of the sending module U2 is triggered at a high level, the first output end of the receiving module U5 correspondingly generates a high-level signal.

The sound and light alarm circuit comprises a bed wetting indication circuit, an under-voltage indication circuit and a voice alarm circuit;

the input end of the bed wetting indicating circuit is connected with the first output end of the receiving module U5, the under-voltage indicating circuit is connected with the second output end of the receiving module U5, and the alarm circuit is respectively connected with the bed wetting indicating circuit and the under-voltage indicating circuit;

specifically, the bed wetting indicating circuit comprises a bed wetting indicating lamp G2, a fourth triode Q4, an eighth resistor R8 and a ninth resistor R9;

Undervoltage indicating circuit includes undervoltage indicator lamp G1, fifth triode Q5, tenth resistance R10 and eleventh resistance R11, the one end of eleventh resistance R11 is undervoltage indicating circuit's input, and the base of fifth triode Q5 is connected to the other end, the projecting pole ground connection of fifth triode Q5, the one end of tenth resistance R10 is connected to the collecting electrode, and the other end of tenth resistance R10 is connected undervoltage indicator lamp G1's negative pole, undervoltage indicator lamp G1's anodal + 5V's power.

The voice alarm circuit comprises a voice function IC chip U6, a loudspeaker SP1 and a peripheral circuit, the voice function IC chip U6 comprises a first input terminal, a second input terminal, a first driving terminal, a second driving terminal, a grounding terminal and a power terminal, the first input end of the voice function IC chip U6 is connected with the collector of a fourth triode Q4 of the bed wetting indicating circuit, collects the voltage on the collector of the fourth triode Q4, the voice function IC chip U6 includes a fifth transistor Q5 having a second input connected to the undervoltage indication circuit, for collecting the voltage on the collector of the fifth transistor Q5, the loudspeaker SP1 is connected between the first driving end and the second driving end, the grounding end of the voice function IC chip U6 is grounded, the power end is connected with a +5V power supply, a fourth capacitor C4 is connected between the power end and the grounding end, and the C4 is used for filtering the power supply of the U6 chip.

It can be understood that if a urine loop is detected, the first input terminal of the sending module U2 generates a high level signal, the first output terminal of the receiving module U5 outputs a high level signal, and the eighth resistor R8 drives the fourth transistor Q4, so that the bed wetting indicator lamp G2 lights up, meanwhile, the collector of the fourth transistor Q4 is pulled from high level to low level and outputs to the first input terminal of the voice function IC chip U6, and the voice function IC chip U6 drives the speaker SP1 to alarm, so as to play the audio of address 1 recorded by the U6; similarly, if undervoltage is detected, the second input end of the sending module U2 generates a high level signal, the second output end of the receiving module U5 outputs a high level signal, the eleventh resistor R11 drives the fifth triode Q5, so that the undervoltage indicator lamp G1 lights up, the collector of the fifth triode Q5 is pulled to a low level by the high level and outputs the low level to the second input end of the voice function IC chip U6, and the voice function IC chip U6 drives the speaker SP1 to alarm, so as to play the audio of the address 2 recorded and broadcast by the U6. The audio of address 1 and the audio of address 2 recorded by the U6 can be recorded and broadcast with different audios according to the user preference.

The WIFI transmitting function circuit comprises a WIFI module U7 and a single chip microcomputer, an ESP8266-01 module is preferably selected by the WIFI module U7, the carrier frequency is 2.4G, the communication distance is 100m, the transmitting power is 20dbm, the WIFI module U7 comprises a power supply end, a first data receiving end UTXD and a second data receiving end URXD, the power supply end of the WIFI module U7 is connected with one end of a twelfth resistor R12 and the negative electrode of a voltage stabilizer DZ1, the other end of the twelfth resistor R12 is connected with a +5V power supply, and the positive electrode of the voltage stabilizer DZ1 is grounded.

It can be understood that, if the single chip microcomputer includes that the first output end of the first acquisition port acquisition receiving module U5 changes from low level to high level, the second data transmission port TX of the single chip microcomputer sends data communication to the second data receiving end URXD of the WIFI module U7, and the WIFI module U7 transmits data to the data management center mobile phone APP management through the router. Similarly, if the single chip microcomputer comprises a second acquisition port, the second output end of the receiving module U5 changes from low level to high level, the second data transmission port TX of the single chip microcomputer sends data communication to the second data receiving end URXD of the WIFI module U7, and the WIFI module U7 transmits the data communication to the data management center mobile phone APP for management through the router. WIFI module U7 also can receive cell-phone APP data through the router, sends data through U7's first data sending end UTXD, reaches singlechip first data output port RX, and the singlechip is handled data.

Those of ordinary skill in the art will understand that: the above description is only for the specific embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a wireless bed-wetting reminder of electrified voltage monitoring and WIFI function which characterized in that, the wireless bed-wetting reminder of electrified voltage monitoring and WIFI function includes: the device comprises a detection transmitting unit and a receiving reminding unit;

the detection transmitting unit comprises a humidity detector U1, a wireless transmitting circuit, a power supply circuit and a voltage monitoring management circuit; the output end of the humidity detector U1 is connected with the input end of a wireless transmitting circuit, the output end of the voltage monitoring management circuit is connected with the input end of the wireless transmitting circuit, and the power supply circuit is used for supplying power to the detecting and transmitting unit;

2. The wireless bed-wetting reminder with voltage monitoring and WIFI function according to claim 1, wherein the power circuit comprises a battery BT1, the positive electrode of an electrolytic capacitor C1 is connected with the positive electrode of the battery BT1, and the negative electrode of the electrolytic capacitor C1 is connected with the negative electrode of the battery BT1 and is grounded.

3. The wireless bed-wetting reminder with voltage monitoring and WIFI functionality of claim 1, wherein the wireless transmitting circuit comprises a transmitting module U2, a first resistor R1, a first triode Q1 and a first diode D1;

the base electrode of the first triode Q1 is connected with the output end of a moisture detector U1, the collector electrode of the first triode Q1 is connected with the first input end of the transmitting module U2, the emitting electrode of the first triode Q1 is connected with a power supply, and the first resistor R1 is connected between the emitting electrode of the first triode Q1 and the base electrode of the first triode Q1; the power supply end of the sending module U2 is connected with the cathode of the first diode D1, the anode of the first diode D1 is connected with the power supply, and the ground end of the sending module U2 is grounded.

4. The wireless bed-wetting reminder with voltage monitoring and WIFI function according to claim 1, wherein the voltage monitoring management circuit comprises an operational amplifier U3A, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a voltage stabilizing diode D2, a second triode Q2 and a third triode Q3;

after the third resistor R3 and the fourth resistor R4 are sequentially connected in series, one end of the third resistor R3 is connected with the power supply VCC, one end of the fourth resistor R4 is grounded, the connection of the third resistor R3 and the fourth resistor R4 is connected with the inverting input end of the operational amplifier U3A, the output end of the operational amplifier U3A is connected with one end of a fifth resistor R5, the other end of the fifth resistor R5 is connected with the base electrode of the second triode Q2, the emitter of the second triode Q2 is grounded, the collector of the second triode Q2 is connected with one end of a seventh resistor R7, the other end of the seventh resistor R7 is connected with the base of a third triode Q3, the collector of the third triode Q3 is connected with the second input end of the sending module U2, the emitter of the third triode Q3 is connected with the power VCC, and the sixth resistor R6 is connected between the emitter of the third triode Q3 and the base of the third triode Q3.

5. The wireless bed-wetting reminder with voltage monitoring and WIFI function according to claim 1, wherein the wireless receiving circuit comprises a receiving module U5, the receiving module U5 comprises a power supply terminal, a ground terminal, a first output terminal and a second output terminal, the first output terminal of the receiving module U5 wirelessly corresponds to the first input terminal of the sending module U2, and the second output terminal of the receiving module U5 wirelessly corresponds to the second input terminal of the sending module U2.

6. The wireless bed-wetting reminder with voltage monitoring and WIFI function according to claim 5, wherein the audible and visual alarm circuit comprises a bed-wetting indication circuit, an under-voltage indication circuit and a voice alarm circuit;

7. The wireless bed-wetting reminder with voltage monitoring and WIFI function of claim 6, wherein the bed-wetting indicating circuit comprises a bed-wetting indicator lamp G2, a fourth triode Q4, an eighth resistor R8 and a ninth resistor R9; one end of the eighth resistor R8 is an input end of the bed wetting indicating circuit, the other end of the eighth resistor R8 is connected with a base of a fourth triode Q4, an emitting electrode of the fourth triode Q4 is grounded, a collecting electrode of the fourth triode Q4 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with a negative electrode of the bed wetting indicating lamp G2, and a positive electrode of the bed wetting indicating lamp G2 is connected with a +5V power supply.

8. The wireless bed-wetting reminder with voltage monitoring and WIFI function according to claim 7, wherein the undervoltage indicating circuit comprises an undervoltage indicating lamp G1, a fifth triode Q5, a tenth resistor R10 and an eleventh resistor R11, one end of the eleventh resistor R11 is an input end of the undervoltage indicating circuit, the other end of the eleventh resistor R11 is connected with a base of a fifth triode Q5, an emitter of the fifth triode Q5 is grounded, a collector is connected with one end of the tenth resistor R10, the other end of the tenth resistor R10 is connected with a cathode of the undervoltage indicating lamp G1, and a positive electrode of the undervoltage indicating lamp G1 is connected with a +5V power supply.

9. The wireless bed-wetting reminder with voltage monitoring and WIFI function according to claim 8, wherein the voice alarm circuit comprises a voice function IC chip U6 and a speaker SP1, the voice function IC chip U6 comprises a first input end, a second input end, a first driving end and a second driving end; the first input end of the voice function IC chip U6 is connected with a collector of a fourth triode Q4 of the bed wetting indicating circuit and used for collecting voltage on the collector of the fourth triode Q4, the voice function IC chip U6 comprises a collector of a second input end connected with a fifth triode Q5 of the undervoltage indicating circuit and used for collecting voltage on the collector of the fifth triode Q5, the loudspeaker SP1 is connected between the first driving end and the second driving end, the ground end of the voice function IC chip U6 is grounded, the power end is connected with a +5V power supply, and a fourth capacitor C4 is connected between the power end and the ground end.

10. The wireless bed-wetting reminder with voltage monitoring and WIFI function according to claim 5, wherein the WIFI transmission function circuit comprises a WIFI module U7 and a single chip microcomputer;