CN211602012U - Temperature and humidity sensor based on wifi communication - Google Patents
Temperature and humidity sensor based on wifi communication Download PDFInfo
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- CN211602012U CN211602012U CN201922273895.7U CN201922273895U CN211602012U CN 211602012 U CN211602012 U CN 211602012U CN 201922273895 U CN201922273895 U CN 201922273895U CN 211602012 U CN211602012 U CN 211602012U
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Abstract
The utility model discloses a temperature and humidity sensor based on wifi communication. It includes wifi module and the humiture collection module of being connected with the wifi module, wifi module and humiture collection module are connected with power module, power module includes the first step-down stabiliser of being connected with power input end and is connected the second step-down stabiliser with first step-down stabiliser, first step-down stabiliser is used for turning into DC5V voltage output with the input voltage of wide range, the second step-down stabiliser is used for turning into DC3.3V voltage with the DC5V voltage of first step-down stabiliser output to supply power respectively to wifi module and humiture collection module. The utility model discloses need not lay wire when using, support the installation of many network deployment formula humiture monitored control systems, cascade the quantity and can reach 254 the most, the on-the-spot network deployment construction volume that significantly reduces can be very convenient inserts ordinary PC and mobile terminal, supports 3.5V to 60V's power and inserts, adaptable industrial site's most low pressure DC voltage, strong adaptability.
Description
Technical Field
The utility model relates to a temperature and humidity sensor field, concretely relates to temperature and humidity sensor based on wifi communication.
Background
The temperature and humidity monitoring system is used for maintaining the good quality of indoor equipment and creating an environment suitable for the equipment, and when the indoor temperature and humidity are suitable for the equipment, the adverse effect of outdoor climate on the indoor environment is prevented; when the indoor temperature and humidity are monitored and are not suitable for equipment, effective measures are required to be taken in time to adjust the indoor temperature and humidity. Therefore, a real-time temperature and humidity monitoring system is established, and the complete historical temperature and humidity data are stored and enter the industry standard.
In the prior art, temperature and humidity sensors generally transmit temperature and humidity data in two ways. One is, the RS485 interface, equipment is simple, and is with low costs, but wired transmission wiring construction volume is big. Secondly, a ZigBee wireless network is adopted, a ZigBee network dormancy mechanism is good, low power consumption can be achieved, but an ordinary PC and a mobile terminal do not support the ZigBee network, and therefore the practicability is poor. And the power supply of the temperature and humidity sensor generally adopts DC5V, and the temperature and humidity sensor cannot be well adapted to the complex circuit environment of an industrial field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a temperature and humidity sensor based on wifi communication to the not enough of prior art existence.
For realize above-mentioned mesh, the utility model provides a temperature and humidity sensor based on wifi communication, including the wifi module and with the humiture collection module that the wifi module is connected, wifi module and humiture collection module are connected with power module, power module include with the power input end be connected first step-down voltage stabilizer and with second step-down voltage stabilizer is connected to first step-down voltage stabilizer, first step-down voltage stabilizer is used for turning into DC5V voltage output with the input voltage of wide range, second step-down voltage stabilizer is used for turning into DC3.3V voltage with the DC5V voltage of first step-down voltage stabilizer output to power is supplied respectively to wifi module and humiture collection module.
Further, a voltage dependent resistor is connected between the power input end and the ground, and the voltage dependent resistor is connected with a transient suppression diode in parallel.
Furthermore, the output end of the second step-down voltage stabilizer is connected with one end of a resistor, the other end of the resistor is connected with the anode of the light-emitting diode, and the cathode of the light-emitting diode is grounded.
Further, the first buck regulator is of the type tps 54260.
Furthermore, the second voltage-reducing regulator is LM 1117-3.3.
Further, the model of the wifi module is ESP 8266.
Has the advantages that: 1. when the temperature and humidity monitoring system is used, wiring is not needed, the installation of a plurality of networking temperature and humidity monitoring systems is supported, the maximum number of cascade connection can reach 254, and the field networking construction amount is greatly reduced.
2. The wireless fidelity (wifi) wireless network is adopted to transmit data, so that the wireless fidelity (WIFI) wireless network can be conveniently accessed to a common Personal Computer (PC) and a mobile terminal, and a mobile monitoring system can be conveniently established.
3. The power supply module supports 3.5V to 60V power supply access, can adapt to most of low-voltage direct-current voltage of an industrial field, and has strong adaptability.
Drawings
Fig. 1 is a circuit diagram of a power module of an embodiment of the invention;
fig. 2 is a schematic wiring diagram of a wifi module according to an embodiment of the present invention;
fig. 3 is the utility model discloses temperature and humidity acquisition module's wiring schematic diagram.
Detailed Description
The present invention will be further clarified by the following embodiments with reference to the attached drawings, which are implemented on the premise of the technical solution of the present invention, and it should be understood that these embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention.
As shown in FIG. 1, the embodiment of the utility model provides a temperature and humidity sensor based on wifi communication, including wifi module U3, humiture acquisition module U4 and power module. Wherein, wifi module U3 is connected with humiture acquisition module U4, and temperature and humidity signal transmission that wifi module U4 will gather is given wifi module U3 to humiture acquisition module U4, and wifi module U3 further sends the temperature and humidity signal of humiture acquisition module U4 with gathering. The power module is connected with wifi module U3 and humiture acquisition module U4 respectively, and power module handles industrial field's direct current voltage and supplies power to wifi module U3 and humiture acquisition module U4. In order to adapt to the complicated circuit environment of industrial field, the utility model discloses a power module includes the first step-down voltage regulator U1 of being connected with power input end, first step-down voltage regulator U1's output is connected with second step-down voltage regulator U2's input, first step-down voltage regulator U1 is used for turning into DC5V voltage output with the input voltage of wide range, second step-down voltage regulator U2 is used for turning into DC3.3V voltage with the DC5V voltage of first step-down voltage regulator U1 output to power respectively to wifi module U3 and humiture collection module U4.
In order to prevent the first step-down voltage regulator U1 from being damaged by an abnormality such as a surge in the dc voltage in an industrial field, a varistor RV1 is connected between the power supply input terminal and the ground, and a transient suppression diode D1 is connected in parallel to the varistor RV 1.
In order to facilitate debugging, the output end of the second buck regulator U2 of the embodiment of the present invention is connected to one end of the resistor R17, the other end of the resistor R17 is connected to the anode of the light emitting diode D3, and the cathode of the light emitting diode D3 is grounded.
The utility model discloses first step-down voltage regulator U1's preferred model is tps54260, and its voltage input scope is at 3.6V to 60, the industrial field DC power supply input of adaptable more voltage value. The second buck regulator U2 is preferably LM 1117-3.3. The preferred model of wifi module U3 is ESP8266, and this wifi module U3 is from taking the treater, and is not only with low costs, and development convenience moreover, realization TCP/UDP's Client/Server function that can be convenient, through the humiture data of treater collection high accuracy temperature and humidity sensor module, through wifi network transmission data after the calculation processing. Humiture collection module U4 adopts the AMXX series that widely uses on the market, and its measurement accuracy is high, and measuring range is wide, and the interference killing feature is strong, and stability is strong, can be applicable to most industrial grade service environment, and the data of gathering carry out data transmission through single bus connection treater.
The above description is only a preferred embodiment of the present invention, and it should be noted that other parts not specifically described belong to the prior art or the common general knowledge to those skilled in the art. Without departing from the principle of the present invention, several improvements and decorations can be made, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a temperature and humidity sensor based on wifi communication, including wifi module (U3) and with temperature and humidity acquisition module (U4) that wifi module (U3) is connected, wifi module (U3) and temperature and humidity acquisition module (U4) are connected with power module, a serial communication port, power module include with the first step-down voltage regulator (U1) of power input end connection and with second step-down voltage regulator (U2) is connected to first step-down voltage regulator (U1), first step-down voltage regulator (U1) are used for turning into DC5V voltage output with the input voltage of wide range, second step-down voltage regulator (U2) are used for turning into DC3.3V voltage with the DC5V voltage of first step-down voltage regulator (U1) output to power is supplied respectively wifi module (U3) and temperature and humidity acquisition module (U4).
2. The temperature and humidity sensor based on wifi communication of claim 1, characterized in that, a voltage dependent resistor (RV1) is connected between the power input terminal and ground, the voltage dependent resistor (RV1) is connected with transient suppression diode (D1) in parallel.
3. The temperature and humidity sensor based on wifi communication as claimed in claim 1, wherein the output terminal of the second voltage-reducing regulator (U2) is connected to one end of a resistor (R17), the other end of the resistor (R17) is connected to the anode of a light emitting diode (D3), and the cathode of the light emitting diode (D3) is grounded.
4. A temperature and humidity sensor based on wifi communication as claimed in claim 1, characterized in that the first voltage step down regulator (U1) model number tps 54260.
5. The temperature and humidity sensor based on wifi communication of claim 1, characterized in that, the second step-down voltage regulator (U2) is LM 1117-3.3.
6. The temperature and humidity sensor based on wifi communication of claim 2, characterized in that, the model of wifi module (U3) is ESP 8266.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922273895.7U CN211602012U (en) | 2019-12-18 | 2019-12-18 | Temperature and humidity sensor based on wifi communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922273895.7U CN211602012U (en) | 2019-12-18 | 2019-12-18 | Temperature and humidity sensor based on wifi communication |
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| Publication Number | Publication Date |
|---|---|
| CN211602012U true CN211602012U (en) | 2020-09-29 |
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| CN201922273895.7U Active CN211602012U (en) | 2019-12-18 | 2019-12-18 | Temperature and humidity sensor based on wifi communication |
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| CN (1) | CN211602012U (en) |
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