CN211783589U - Indoor temperature and humidity detection sensor based on Internet of things - Google Patents

Abstract

The utility model discloses an indoor temperature and humidity detection sensor based on thing networking, including temperature sensor circuit, humidity transducer circuit, AD converting circuit, central processing unit circuit, memory circuit, radio signal transceiver circuit, power supply circuit and display circuit, temperature sensor circuit and humidity transducer circuit all with the AD converting circuit electricity is connected, AD converting circuit, memory circuit, radio signal transceiver circuit, power supply circuit and display circuit all with the central processing unit circuit electricity is connected. The utility model discloses a temperature sensor circuit and humidity transducer circuit detect the temperature data and the humidity data of place environment respectively, improve the sensitivity that detects, detect the precision height to can satisfy user's user demand, user experience is effectual.

Description

Indoor temperature and humidity detection sensor based on Internet of things

Technical Field

The utility model relates to a sensor technical field, in particular to indoor temperature and humidity measurement sensor based on thing networking.

Background

The sensor is a detection device which can sense the measured information and convert the sensed information into an electric signal or other information in a required form according to a certain rule to output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like. The temperature and humidity sensor is one of numerous sensors and has wide application. All there are very much precision instrument equipment in current laboratory or computer lab, these instrument equipment because the precision is very high, if temperature variation is great in the environment, perhaps humidity is higher all can lead to the decline of its precision, consequently, need to predict the humiture of the environment that these instrument equipment are located, and then the humiture of control environment in advance. When being applied to intelligent furniture system, along with the continuous improvement of people's standard of living, people also are higher and higher to the requirement of living environment quality, and current temperature and humidity sensor can not be fine satisfy user's needs, detects insensitive moreover, and its detection accuracy receives the influence easily, and the error is great, and signal transmission stability is relatively poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, detect defects such as insensitive, the detection accuracy error is great, signal transmission stability is relatively poor to the above-mentioned temperature and humidity sensor of prior art, provide an indoor temperature and humidity detection sensor based on thing networking.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides an indoor temperature and humidity measurement sensor based on thing networking, includes temperature sensor circuit, humidity transducer circuit, AD converting circuit, central processing unit circuit, memory circuit, wireless signal transceiver circuit, power supply circuit and display circuit, temperature sensor circuit and humidity transducer circuit all with the AD converting circuit electricity is connected, AD converting circuit, memory circuit, wireless signal transceiver circuit, power supply circuit and display circuit all with the central processing unit circuit electricity is connected.

Preferably, the central processing unit circuit includes a single chip microcomputer chip U3, a crystal oscillator Y1, a resistor R1, a capacitor C3, a capacitor C4, a capacitor C5 and a capacitor C6, a first pin of the single chip microcomputer chip U3 is grounded through the capacitor C3, an eleventh pin of the single chip microcomputer chip U3 is grounded through the resistor R1, a thirteenth pin and a fourteenth pin of the single chip microcomputer chip U3 are grounded through the capacitor C4 and the capacitor C5, one end of the crystal oscillator Y1 is connected with a nineteenth pin of the single chip microcomputer chip U3, and the other end of the crystal oscillator Y1 and a twentieth pin of the single chip microcomputer chip U1 are both grounded through the capacitor C6.

Preferably, the AD conversion circuit includes an AD conversion chip U4, a capacitor C7, a capacitor C8, and a capacitor C9, the fourth pin of the AD conversion chip U4, one end of the capacitor C7, one end of the capacitor C8, and one end of the capacitor C9 are all connected to the first pin of the monolithic chip U3, and the third pin of the AD conversion chip U4, the other end of the capacitor C7, the other end of the capacitor C8, and the other end of the capacitor C9 are all grounded.

Preferably, the temperature sensor circuit includes a first detecting chip U1 and a capacitor C1, the humidity sensor circuit includes a second detecting chip U2 and a capacitor C2, first pins of the first detecting chip U1 and the second detecting chip U2 are connected to a first pin of an AD conversion chip U4, sixth pins of the first detecting chip U1 and the second detecting chip U2 are connected to a second pin of the AD conversion chip U4, a fifth pin of the first detecting chip U1 is grounded through the capacitor C1, and a fifth pin of the second detecting chip U2 is grounded through the capacitor C2.

Preferably, the wireless signal transceiver circuit includes a wireless transceiver chip U6, an inductor L1, a resistor R2, a resistor R6, a capacitor C12, a capacitor C13, a capacitor C14, and a capacitor C15, wherein one end of the resistor R6 and one end of the inductor L1 are connected to a sixteenth pin of the wireless transceiver chip U6, one end of the capacitor C12 is connected to a twelfth pin of the wireless transceiver chip U6, one end of the capacitor C13, one end of the capacitor C14, one end of the capacitor C15, and one end of the resistor R2 are connected to an eleventh pin of the wireless transceiver chip U6, and a third pin, a fourth pin, a sixth pin, a seventh pin, an eighth pin, and a ninth pin of the wireless transceiver chip U6 are connected to a thirty-sixth pin, a thirty-fifth pin, a thirty-fourth pin, a thirty-third pin, a thirty-second pin, and a thirty-third pin of the wireless singlechip U3.

Preferably, the power supply circuit comprises a power control chip U7, an inductor L2, a resistor R3, a resistor R4, a resistor R5, a capacitor C16, a capacitor C17 and a voltage regulator tube D4, wherein one end of the inductor L2 is connected with a fifth pin of a power control chip U7, one end of the resistor R3 is connected with a twenty-sixth pin of the single chip microcomputer chip U3, the other end of the resistor R3 is connected with a fourth pin of the power control chip U7, the first pin of the power control chip U7 and the other end of the inductor L2 are connected with an anode of the voltage regulator tube D4, the third pin of the power control chip U7, one end of the resistor R4 and one end of the capacitor C16 are all grounded through a resistor R5, and the other end of the resistor R4, a cathode of the voltage regulator tube D4 and one end of the capacitor C17 are all connected with a twenty-fifth pin of the single chip U3.

Adopt above-mentioned technical scheme, the utility model provides a pair of indoor temperature and humidity measurement sensor based on thing networking has following beneficial effect: 1. the temperature sensor circuit and the humidity sensor circuit are used for respectively detecting the temperature data and the humidity data of the environment, so that the detection sensitivity is improved; 2. the transmission of temperature and humidity data is realized through a wireless signal receiving and transmitting circuit, and the transmission stability of temperature and humidity signals is improved; temperature and humidity data are processed in real time through the central processing unit circuit, the working states of the storage circuit, the wireless signal receiving and transmitting circuit, the power supply circuit and the display circuit are controlled respectively, the accuracy of data detection is improved, errors are reduced, the use requirements of users are met, and the user experience effect is good.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a schematic circuit diagram of the present invention;

in the figure, 1-a temperature sensor circuit, 2-a humidity sensor circuit, 3-an D conversion circuit, 4-a central processing unit circuit, 5-a storage circuit, 6-a wireless signal transceiver circuit, 7-a power supply circuit and 8-a display circuit.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1, the utility model discloses an among the structure block diagram, this indoor temperature and humidity measurement sensor based on thing networking includes temperature sensor circuit 1, humidity transducer circuit 2, AD converting circuit 3, central processing unit circuit 4, storage circuit 5, wireless signal transceiver circuit 6, power supply circuit 7 and display circuit 8, this temperature sensor circuit 1 and humidity transducer circuit 2 all are connected with this AD converting circuit 3 electricity, this AD converting circuit 3, storage circuit 5, wireless signal transceiver circuit 6, power supply circuit 7 and display circuit 8 all are connected with this central processing unit circuit 4 electricity. As can be understood, the power supply circuit 7 is used for respectively providing power supply for the temperature sensor circuit 1, the humidity sensor circuit 2, the central processor circuit 4 and the display circuit 8. This indoor temperature and humidity detection sensor can regularly awaken up and gather data, temperature sensor circuit 1, humidity sensor circuit 2 transmits to central processing unit circuit 4 after the data that record are converted into digital signal through AD converting circuit 3, central processing unit circuit 4 is with data restoration to memory circuit 5, transmit the appointed data service center of user through wireless signal transceiver circuit 6 simultaneously, and can show the environment humiture through display circuit 8 after big data system contrastive analysis.

Specifically, fig. 2 is a schematic circuit diagram of the present invention, as can be seen from fig. 1 and fig. 2, the central processor circuit 4 includes a single chip microcomputer U3, a crystal oscillator Y1, a resistor R1, a capacitor C3, a capacitor C4, a capacitor C5 and a capacitor C6, a first pin of the single chip microcomputer U3 is grounded through a capacitor C3, an eleventh pin of the single chip microcomputer U3 is grounded through a resistor R1, a thirteenth pin and a fourteenth pin of the single chip microcomputer U3 are grounded through a capacitor C4 and a capacitor C5, one end of the crystal oscillator Y1 is connected to a nineteenth pin of the single chip microcomputer U3, and the other end of the crystal oscillator Y1 and a twentieth pin of the single chip microcomputer U1 are both grounded through a capacitor C6; the AD conversion circuit 3 comprises an AD conversion chip U4, a capacitor C7, a capacitor C8 and a capacitor C9, wherein a fourth pin of the AD conversion chip U4, one end of the capacitor C7, one end of the capacitor C8 and one end of the capacitor C9 are all connected with a first pin of the single chip microcomputer chip U3, and a third pin of the AD conversion chip U4, the other end of the capacitor C7, the other end of the capacitor C8 and the other end of the capacitor C9 are all grounded; the temperature sensor circuit 1 comprises a first detection chip U1 and a capacitor C1, the humidity sensor circuit 2 comprises a second detection chip U2 and a capacitor C2, first pins of the first detection chip U1 and the second detection chip U2 are both connected with a first pin of an AD conversion chip U4, sixth pins of the first detection chip U1 and the second detection chip U2 are both connected with a second pin of the AD conversion chip U4, a fifth pin of the first detection chip U1 is grounded through the capacitor C1, and a fifth pin of the second detection chip U2 is grounded through the capacitor C2; the wireless signal transceiver circuit 6 comprises a wireless transceiver chip U6, an inductor L1, a resistor R2, a resistor R6, a capacitor C12, a capacitor C13, a capacitor C14 and a capacitor C15, one end of the resistor R6 and one end of the inductor L1 are both connected to the sixteenth pin of the wireless transceiver chip U6, one end of the capacitor C12 is connected to the twelfth pin of the wtru U6, one end of the capacitor C13, one end of the capacitor C14, one end of the capacitor C15 and one end of the resistor R2 are all connected to the eleventh pin of the wtru 6, the third pin, the fourth pin, the sixth pin, the seventh pin, the eighth pin and the ninth pin of the wireless transceiver chip U6 are all connected with the thirty-sixth pin, the thirty-fifth pin, the thirty-fourth pin, the thirty-third pin, the thirty-second pin and the thirty-first pin of the singlechip chip U3, the wireless signal transceiver circuit 6 may also be a single-mode or multi-mode communication module including NB-IOT/eMTC/GSM; the power supply circuit 7 comprises a power supply control chip U7, an inductor L2, a resistor R3, a resistor R4, a resistor R5, a capacitor C16, a capacitor C17 and a voltage regulator tube D4, wherein one end of the inductor L2 is connected with a fifth pin of the power supply control chip U7, one end of the resistor R3 is connected with a twenty-sixth pin of the single chip microcomputer chip U3, the other end of the resistor R3 is connected with a fourth pin of the power supply control chip U7, a first pin of the power supply control chip U7 and the other end of the inductor L2 are connected with an anode of the voltage regulator tube D4, a third pin of the power supply control chip U7, one end of the resistor R4 and one end of the capacitor C16 are all grounded through the resistor R5, and the other end of the resistor R4, a cathode of the voltage regulator tube D4 and one end of the capacitor C17 are all connected with a twenty-fifth pin of the single chip U3; the display circuit 8 comprises an LCD interface J1, wherein a seventh pin, an eighth pin, a ninth pin, a tenth pin and an eleventh pin of the LCD interface J1 are respectively connected with a sixth pin, a seventh pin, an eighth pin, a ninth pin and a tenth pin of a singlechip chip U3; the memory circuit 5 comprises a memory chip U5, a capacitor C10 and a capacitor C11, wherein one end of the capacitor C10 is connected with a first pin of the memory chip U5, one end of the capacitor C11 is connected with a third pin of the memory chip U5, and the other end of the capacitor C10, the other end of the capacitor C11 and a second pin of the memory chip U5 are all grounded. It is understood that the first detecting chip U1 and the second detecting chip U2 may be SHT11 chips, SHT20 chips, etc., the single chip U3 may be 80C51 chips, etc., the AD converting chip U4 may be AC _ DC4 chips, etc., the memory chip U5 may be 24C00 chips, etc., the wireless transceiver chip U6 may be ZD8067 chips, etc., and the power control chip U7 may be SX1308 chips, etc.

It can be understood that the utility model has reasonable design and unique structure, and the temperature sensor circuit 1 and the humidity sensor circuit 2 respectively detect the temperature data and the humidity data of the indoor environment and the like, thereby improving the detection sensitivity of the indoor temperature and humidity detection sensor; the transmission of temperature and humidity data is realized through the wireless signal transceiving circuit 6, and the transmission stability of temperature and humidity signals is improved; temperature and humidity data are processed in real time through the central processing unit circuit 4, and the working states of the storage circuit 5, the wireless signal transceiving circuit 6, the power supply circuit 7 and the display circuit 8 are respectively controlled, for example, when the temperature and humidity of the environment are monitored to be normal, corresponding circuits are closed to ensure energy conservation, so that the accuracy of data detection of the indoor temperature and humidity detection sensor is improved, the intelligent degree is high, detection errors are reduced, the use requirements of users are met, the use satisfaction of the users is improved, and the user experience effect is good.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims (6)

1. The utility model provides an indoor temperature and humidity measurement sensor based on thing networking which characterized in that: including temperature sensor circuit, humidity transducer circuit, AD converting circuit, central processing unit circuit, memory circuit, wireless signal transceiver circuit, power supply circuit and display circuit, temperature sensor circuit and humidity transducer circuit all with AD converting circuit electricity is connected, AD converting circuit, memory circuit, wireless signal transceiver circuit, power supply circuit and display circuit all with central processing unit circuit electricity is connected.

2. The indoor temperature and humidity detection sensor based on the Internet of things according to claim 1, characterized in that: the central processing unit circuit comprises a single chip microcomputer chip U3, a crystal oscillator Y1, a resistor R1, a capacitor C3, a capacitor C4, a capacitor C5 and a capacitor C6, a first pin of the single chip microcomputer chip U3 is grounded through the capacitor C3, an eleventh pin of the single chip microcomputer chip U3 is grounded through the resistor R1, a thirteenth pin and a fourteenth pin of the single chip microcomputer chip U3 are grounded through the capacitor C4 and the capacitor C5 respectively, one end of the crystal oscillator Y1 is connected with a nineteenth pin of the single chip microcomputer chip U3, and the other end of the crystal oscillator Y1 and a twentieth pin of the single chip microcomputer chip U1 are grounded through the capacitor C6.

3. The indoor temperature and humidity detection sensor based on the Internet of things according to claim 2, characterized in that: the AD conversion circuit comprises an AD conversion chip U4, a capacitor C7, a capacitor C8 and a capacitor C9, wherein a fourth pin of the AD conversion chip U4, one end of the capacitor C7, one end of the capacitor C8 and one end of the capacitor C9 are connected with a first pin of the single chip microcomputer chip U3, and a third pin of the AD conversion chip U4, the other end of the capacitor C7, the other end of the capacitor C8 and the other end of the capacitor C9 are all grounded.

4. The indoor temperature and humidity detection sensor based on the Internet of things according to claim 3, characterized in that: the temperature sensor circuit comprises a first detection chip U1 and a capacitor C1, the humidity sensor circuit comprises a second detection chip U2 and a capacitor C2, first pins of the first detection chip U1 and the second detection chip U2 are connected with first pins of an AD conversion chip U4, sixth pins of the first detection chip U1 and the second detection chip U2 are connected with second pins of the AD conversion chip U4, a fifth pin of the first detection chip U1 is grounded through the capacitor C1, and a fifth pin of the second detection chip U2 is grounded through the capacitor C2.

5. The indoor temperature and humidity detection sensor based on the Internet of things according to claim 2, characterized in that: the wireless signal transceiving circuit comprises a wireless transceiving chip U6, an inductor L1, a resistor R2, a resistor R6, a capacitor C12, a capacitor C13, a capacitor C14 and a capacitor C15, wherein one end of the resistor R6 and one end of the inductor L1 are connected with a sixteenth pin of the wireless transceiving chip U6, one end of the capacitor C12 is connected with a twelfth pin of the wireless transceiving chip U6, one end of the capacitor C13, one end of the capacitor C14, one end of the capacitor C15 and one end of the resistor R2 are connected with an eleventh pin of the wireless transceiving chip U6, and a third pin, a fourth pin, a sixth pin, a seventh pin, an eighth pin and a ninth pin of the wireless transceiving chip U6 are connected with a thirty-sixth pin, a thirty-fifth pin, a thirty-fourth pin, a thirty-second pin and a thirty-first pin of the chip 3.

6. The indoor temperature and humidity detection sensor based on the Internet of things according to claim 2, characterized in that: the power supply circuit comprises a power supply control chip U7, an inductor L2, a resistor R3, a resistor R4, a resistor R5, a capacitor C16, a capacitor C17 and a voltage regulator tube D4, wherein one end of the inductor L2 is connected with a fifth pin of a power supply control chip U7, one end of the resistor R3 is connected with a twenty-sixth pin of the single chip microcomputer chip U3, the other end of the resistor R3 is connected with a fourth pin of the power supply control chip U7, a first pin of the power supply control chip U7 and the other end of the inductor L2 are connected with an anode of the voltage regulator tube D4, a third pin of the power supply control chip U7, one end of the resistor R4 and one end of the capacitor C16 are all grounded through the resistor R5, and the other end of the resistor R4, a cathode of the voltage regulator tube D4 and one end of the capacitor C17 are all connected with a fifth pin of the twenty-chip U3.

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