CN212084343U - Infant urine wet alarm device with temperature and humidity or AND gate detection circuit - Google Patents
Infant urine wet alarm device with temperature and humidity or AND gate detection circuit Download PDFInfo
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- CN212084343U CN212084343U CN202021040339.1U CN202021040339U CN212084343U CN 212084343 U CN212084343 U CN 212084343U CN 202021040339 U CN202021040339 U CN 202021040339U CN 212084343 U CN212084343 U CN 212084343U
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Abstract
An infant urine wet alarm device with a temperature and humidity or AND gate detection circuit belongs to the application range of single chip microcomputer technology; the humidity-sensitive sensor circuit and the temperature sensor circuit are respectively connected with a time-base circuit, and the time-delay or gate detection of an input signal is completed through a program. The humidity-sensitive sensor circuit and the temperature sensor circuit are respectively connected with an AND gate circuit consisting of two diodes, the AND gate circuit is connected with a time base circuit, and the time base circuit is connected with the input end of the single chip microcomputer to complete the time delay AND gate detection of input signals. The humidity-sensitive sensor circuit consists of a humidity-sensitive resistor and a triode, and the temperature sensor circuit consists of a thermistor bleeder circuit and a triode. The invention adopts the delayed sounding after the bed wetting of the infant, which is beneficial to the humanized management of the infant.
Description
Technical Field
The invention relates to an infant urine-wet alarm device, in particular to an infant urine-wet alarm device with a temperature and humidity or AND gate detection circuit, and belongs to the application range of single-chip microcomputer technology.
Background
The invention creates the temperature and humidity or AND gate detection, which refers to the control of a humidity-sensitive sensor circuit and an OR gate and an AND gate of a temperature sensor circuit, wherein the former refers to the control completed through a program, and the latter refers to the control realized through a diode AND gate circuit. Before the invention is created, the infant urine-wet detection alarm circuit has defects, and particularly the infant urine-wet alarm device which does not have a humidity-sensitive sensor circuit, a temperature sensor circuit or a door and a door influences the accuracy and stability of the urine-wet detection when the infant bed-wetting occurs.
Disclosure of Invention
The invention aims to provide an infant urine alarm device with a temperature and humidity or AND gate detection circuit.
The invention solves the technical problem by adopting the technical scheme that a humidity-sensitive sensor circuit and a temperature sensor circuit are respectively connected with a time-base circuit, the time-base circuit is connected with the input end of a single chip microcomputer, the OR gate detection of an input signal after delay is finished through a program, the humidity-sensitive sensor circuit and the temperature sensor circuit are respectively connected with an AND gate circuit consisting of two diodes, the AND gate circuit is connected with the time-base circuit, and the time-base circuit is connected with the input end of the single chip microcomputer to finish the AND gate detection of the input signal. The humidity sensor circuit consists of a humidity sensor resistor and a triode, and the temperature sensor circuit consists of a thermistor voltage division circuit and a triode.
The invention has the advantages that when one or both of the humidity-sensitive sensor circuit and the temperature sensor circuit detect the urine wet state, the control of the temperature-humidity circuit or the door and the AND gate is realized, and the stability and the accuracy of the detection are improved. The invention adopts the delayed sounding after the bed wetting of the infant, which is beneficial to the humanized management of the infant.
Drawings
The invention will be further explained below with reference to the drawings.
Fig. 1 is an electrical schematic diagram of the invention.
Detailed Description
See fig. 1. The singlechip is a PIC eight-bit singlechip, and the embodiment of the singlechip is a PIC16C54 singlechip.
In the figure, a humidity-sensitive sensor circuit and a temperature sensor circuit are respectively connected with an NE555 time-base circuit, the NE555 time-base circuit is respectively connected with the input end of a single chip microcomputer, and OR gate detection after input signals are delayed is completed through a program. The humidity-sensitive sensor circuit and the temperature sensor circuit are respectively connected with the negative electrode of an AND gate circuit consisting of two diodes, the positive electrode parallel output end of the diode AND gate circuit is connected with the input end of an NE555 time-base circuit, and the output end of the NE555 time-base circuit is connected with the input end of a single chip microcomputer, so that the AND gate detection after the input signal is delayed is completed. And the OR gate control of the OR gate and the AND gate is realized, so that the stability and the accuracy of detection are improved. The humidity sensor circuit consists of a humidity sensor resistor and a triode, the temperature sensor circuit consists of a thermistor voltage division circuit and a triode, and the output end of the singlechip is connected with a sound circuit and a light-emitting circuit. When one or both of the humidity sensor circuit and the temperature sensor circuit detect the urine wet state, the singlechip controls the sounding circuit to sound and the light-emitting circuit to emit light.
The invention creates a humidity-sensitive sensor circuit and a temperature sensor circuit which are connected with the input end of an NE555 time-base circuit, and the output end of the NE555 time-base circuit is connected with the input end of a singlechip, thereby realizing the OR gate control of input signals by programs. When the humidity sensor circuit or the temperature sensor circuit and the output end of the NE555 time base circuit have a high potential, the singlechip program controls the sounding circuit to sound and the light-emitting circuit to emit light.
The invention creates a diode AND gate circuit which is composed of two diodes, and the connection mode of the diode AND gate circuit with a humidity sensor circuit and a temperature sensor circuit is as follows: the cathodes of the two diodes are respectively connected with the output ends of the humidity sensor circuit and the temperature sensor circuit. The anodes of the two diodes are connected in parallel and then connected with the input end of the NE555 time base circuit, and are connected with the anode of the power supply through a resistor (1K-10K). When urine is wet, the humidity-sensitive sensor circuit and the temperature sensor circuit both output high potentials, the AND gate circuit connected with the cathodes of the two diodes outputs the high potentials, the input end of the NE555 time-base circuit connected with the AND gate circuit obtains the high potentials, and the input end of the single chip microcomputer connected with the output end of the NE555 time-base circuit obtains the high potentials, so that the AND gate control of signals output by the humidity-sensitive sensor circuit and the temperature sensor circuit is realized. The program set by the singlechip drives the sound circuit to sound and the light emitting tube circuit to emit light. The sound of the music sound circuit is continuously generated until the diaper is changed, one or both of the humidity sensor circuit and the temperature sensor circuit outputs a low potential, and the AND gate circuit connected with the cathodes of the two diodes outputs a low potential.
The humidity-sensitive sensor circuit consists of a humidity-sensitive resistor and a triode. The connecting mode is that one end of the humidity-sensitive resistor is connected with the negative electrode of the power supply, the other end of the humidity-sensitive resistor is connected with a resistor, the other end of the resistor is connected with the base electrode of the triode, the emitting electrode of the triode is connected with the positive electrode of the power supply, and the collecting electrode of the triode is connected with the negative electrode of a diode of the AND gate circuit.
The temperature sensor circuit consists of a thermistor voltage division circuit and a triode, wherein the thermistor voltage division circuit consists of a thermistor and a resistor, two ends of the thermistor voltage division circuit are connected with the anode and the cathode of a power supply, one end of the thermistor is connected with the anode of the power supply, and one end of the resistor is grounded. The connecting point of the thermistor and the resistor is connected with the base electrode of the triode, and the collector electrode of the triode is connected with the negative electrode of the other diode of the AND gate circuit.
The output end of the AND gate circuit is connected with the NE555 time base circuit in a mode that: the output end of the AND gate circuit, namely the parallel connection point of the anodes of the two diodes, is connected with the 4 th end and the 8 th end of the time-base integrated circuit NE555, and the 2 nd end and the 6 th end of the NE555 are connected with a delay circuit formed by the resistance-capacitance elements. The selection of the resistive-capacitive element determines the delay time. In the case, the capacitance is 100 microfarads, the resistance is 100 kilo-ohms, and the delay time is about 10 seconds. The connecting point of the capacitor and the resistor is connected with the 2 nd end and the 6 th end of the NE555, and the other end of the capacitor and the other end of the resistor are respectively connected with the anode of the power supply and the ground. The 1 st terminal of NE555 is grounded.
The working principle is as follows: when urine is wet, the temperature rises, the triode of the humidity-sensitive sensor circuit is conducted, the collector of the triode outputs high potential to the cathode of one diode of the AND gate circuit, the thermistor voltage-dividing circuit in the temperature sensor circuit enables the triode to be cut off at ordinary times, the triode is conducted due to the resistance value increase of the thermistor when urine is wet, and the collector of the triode outputs high potential to the cathode of one diode of the AND gate circuit. Under the condition that the humidity-sensitive sensor circuit and the humidity-sensitive circuit are both high potential, the AND gate circuit outputs the high potential, the NE555 time-base circuit connected with the output end of the AND gate circuit obtains the high potential, the time delay circuit starts to time, and the high potential is output after the time delay is about 10 seconds. The output end of the NE555 time-base circuit outputs high potential to the input end of the singlechip connected with the output end of the NE555 time-base circuit.
The thermistor is divided into a positive temperature coefficient thermistor and a negative temperature coefficient thermistor, wherein the resistance value of the thermistor is increased when the temperature of the thermistor rises, and the resistance value of the thermistor is reduced when the temperature of the thermistor rises. In practical application, the triode has NPN or PNP model, and the thermistor has positive temperature humidity coefficient thermistor or negative temperature humidity coefficient. The designer can select an NPN or PNP type triode according to the existing conditions, and adopts a positive temperature and humidity coefficient thermistor or a negative temperature and humidity coefficient thermistor. The embodiment adopts an NPN type triode and a negative temperature coefficient thermistor. The designer should ensure that the NE555 time-base circuit outputs high potential after the urine wetting time delay of 10 seconds in the design and debugging of the temperature sensor circuit.
The humidity sensor circuit and the temperature sensor circuit are all applied in the prior art, and are not protected by the invention, so that the details are not described. The protection of the invention is that the humidity sensor circuit and the temperature sensor circuit are connected with the input end of the singlechip through the NE555 time base circuit, and when one of the humidity sensor circuit and the temperature sensor circuit is at a high potential through the NE555 time base circuit, the singlechip program or gate control is realized, thereby improving the stability of detection. The invention also provides a protection method for the humidity-sensitive sensor circuit, the temperature sensor circuit, the diode AND gate circuit and the connection mode of the diode AND gate circuit and the singlechip through the NE555 time-base circuit, the invention outputs high potential to the diode AND gate circuit simultaneously when the humidity-sensitive sensor circuit and the temperature sensor circuit delay 10 seconds, and obtains high potential with the singlechip input end connected with the output end of the AND gate circuit.
The output end of the singlechip is connected with a sound circuit consisting of a triode and a music chip and a light-emitting circuit consisting of a triode and a light-emitting tube. The sound circuit is composed of a triode and a music chip. The I/O output end of the singlechip is connected with the base electrode of the triode, the emitting electrode of the triode is grounded, the collecting electrode of the triode (9012) is connected with one end of the music chip, and the power supply end of the music chip is connected with the positive electrode of the power supply. The music chip adopts an NY3 single-chip music chip of different music of Shenzhen Si Zeyan science and technology company. The light emitting circuit consists of a triode and a light emitting tube, the I/O output end of the singlechip is connected with the base electrode of the triode, the emitting electrode of the triode is grounded, the collecting electrode of the triode (9012) is connected with one end of the light emitting tube, and the other end of the light emitting tube is connected with the positive electrode of the power supply.
The invention creates a wet-sensitive sensor and a temperature sensor which are stuck on a diaper in a wet area, after an infant wets, one of a wet-sensitive sensor circuit and a temperature sensor circuit outputs high potential to the input end of a singlechip through an NE555 time-base circuit, or simultaneously outputs high potential to an AND gate circuit connected with the singlechip, the AND gate circuit outputs high potential, the NE555 time-base circuit delays for 10 seconds and then outputs high potential to the input end of the singlechip, and the singlechip controls a music chip to sound and controls a light-emitting circuit to emit light. The time delay of 10 seconds is used for preventing the infant from being frightened due to the early sounding when the infant urinates the bed.
The components such as the singlechip, the humidity sensitive resistor, the thermistor, the triode, the diode, the NE555 time base circuit, the music chip, the luminous tube and the like which are used in the invention are all purchased finished products, and the internal structure of the electronic ballast does not belong to the disclosure of the specification. The contents of the description have been given for clarity and completeness, and a person skilled in the art can implement the technical solution according to the contents of the description.
The invention realizes the functions through a single chip microcomputer program. It is clear to those skilled in the art how to implement the content described in the specification by programming the single chip microcomputer.
Claims (2)
1. An infant urine wet alarm device with a temperature and humidity or AND gate detection circuit belongs to the application range of single chip microcomputer technology; the humidity-sensitive sensor circuit and the temperature sensor circuit are respectively connected with a time base circuit, the time base circuit is connected with the input end of a single chip microcomputer, the OR gate detection of input signals after delay is completed through a program, the humidity-sensitive sensor circuit and the temperature sensor circuit are respectively connected with an AND gate circuit formed by two diodes, the AND gate circuit is connected with the time base circuit, the time base circuit is connected with the input end of the single chip microcomputer, and the AND gate detection of the input signals is completed.
2. The infant urination alarm device with temperature and humidity or AND gate detection circuit as claimed in claim 1, wherein the humidity sensor circuit comprises a humidity sensor and a transistor, and the temperature sensor circuit comprises a thermistor voltage divider and a transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021040339.1U CN212084343U (en) | 2020-06-03 | 2020-06-03 | Infant urine wet alarm device with temperature and humidity or AND gate detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021040339.1U CN212084343U (en) | 2020-06-03 | 2020-06-03 | Infant urine wet alarm device with temperature and humidity or AND gate detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212084343U true CN212084343U (en) | 2020-12-04 |
Family
ID=73558303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021040339.1U Expired - Fee Related CN212084343U (en) | 2020-06-03 | 2020-06-03 | Infant urine wet alarm device with temperature and humidity or AND gate detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212084343U (en) |
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2020
- 2020-06-03 CN CN202021040339.1U patent/CN212084343U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 Termination date: 20210603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |