CN212379963U - Wireless communication circuit for improving low-power consumption sensor - Google Patents
Wireless communication circuit for improving low-power consumption sensor Download PDFInfo
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- CN212379963U CN212379963U CN202021271852.1U CN202021271852U CN212379963U CN 212379963 U CN212379963 U CN 212379963U CN 202021271852 U CN202021271852 U CN 202021271852U CN 212379963 U CN212379963 U CN 212379963U
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Abstract
The utility model discloses a wireless communication circuit for improving low power consumption sensor, which comprises a temperature sensing module, a radio frequency transmitting module and a radio frequency receiving module, wherein the temperature sensing module is electrically connected with the radio frequency transmitting module, the radio frequency transmitting module is communicated with the radio frequency receiving module, the radio frequency transmitting module comprises an MCU coder, a transmitting antenna, a power amplifier and a low noise amplifier, the transmitting antenna, the power amplifier and the low noise amplifier are all electrically connected with the MCU coder, the radio frequency receiving module comprises a receiving antenna, an MCU decoder, a filter and a low noise amplifier, the utility model aims to provide a wireless communication circuit for improving the low power consumption sensor, the temperature tested by the temperature sensor is transmitted by wireless communication to replace the wire rod for signal transmission, and resources are saved, the effect of space limitation can be reduced.
Description
Technical Field
The utility model relates to a temperature sensor communication technology field specifically is an improve low-power consumption sensor's wireless communication circuit.
Background
A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument and has a plurality of varieties. The measurement method can be divided into a contact type and a non-contact type, and the measurement method can be divided into a thermal resistor and a thermocouple according to the characteristics of sensor materials and electronic elements.
However, traditional temperature sensor often adopts the wire rod to be connected with the controller, and when temperature sensor's mounted distance was far away, the longer wire rod of often demand carried out signal transmission, and not only resource-wasting like this, and temperature sensor's mounted position angle is more shang bored sometimes, is difficult for carrying out the winding displacement, also can bring the puzzlement of winding displacement problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve low-power consumption sensor's wireless communication circuit carries out signal transmission through the mode with temperature sensor through wireless communication to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an improve low-power consumption sensor's wireless communication circuit, includes temperature sensing module, radio frequency emission module and radio frequency receiving module, temperature sensing module and radio frequency emission module looks electric connection, radio frequency emission module and radio frequency receiving module looks communication connection, radio frequency emission module includes MCU encoder, transmitting antenna, power amplifier and low noise amplifier all are connected with MCU encoder looks electric, radio frequency receiving module includes receiving antenna, MCU decoder, wave filter and low noise amplifier, receiving antenna, wave filter and low noise amplifier all are connected with MCU decoder looks electric.
Preferably, the temperature sensing module adopts a DS18B20 temperature sensor, and the DS18B20 temperature sensor is in communication connection with the MCU encoder through a 1-Wire protocol.
Preferably, the MCU encoder adopts an EV1527 model.
Preferably, the MCU decoder adopts an SLRC610 radio frequency chip circuit, and the SLRC610 radio frequency chip circuit forms a receiving circuit through R2, R3, C15 and a receiving antenna.
Preferably, the SLRC610 rf chip circuit forms a filter through L1, L2, C5, and C6.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an improve low-power consumption sensor's wireless communication circuit, detect the position to needs temperature detection through DS18B20 temperature sensor, then make temperature sensor's signal of telecommunication carry out the code processing back through the MCU encoder, carry out radio wave transmission through radio frequency transmitter and go out, receive through the receiving antenna who installs on the host computer that needs were accepted again on the radio frequency receiver, rethread filter ware carries out filtering processing with the signal source, obtain pure received signal, be convenient for the receipt that the host computer can, rethread MCU decoder carries out decryption processing with the signal, so that read out the temperature registration, with this carry out signal transmission through the mode that passes through wireless communication with the temperature of temperature sensor test and replaced the wire rod to carry out signal transmission, when resources are saved, also can not few space restriction influence.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
fig. 2 is a block diagram of the rf transmitting module of the present invention;
fig. 3 is a block diagram of the rf receiving module of the present invention;
fig. 4 is a circuit diagram of an EV1527 chip according to the present invention;
fig. 5 is a circuit diagram of the SLRC610 rf chip of the present invention;
fig. 6 is a circuit diagram of the DS18B20 sensor of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides an improve low-power consumption sensor's wireless communication circuit as shown in fig. 1-6, including temperature-sensing module, radio frequency emission module and radio frequency receiving module, temperature-sensing module and radio frequency emission module looks electric connection, radio frequency emission module and radio frequency receiving module looks communication are connected, radio frequency emission module includes the MCU encoder, transmitting antenna, power amplifier and low noise amplifier all are connected with MCU encoder looks electric, radio frequency receiving module includes receiving antenna, the MCU decoder, wave filter and low noise amplifier, receive sky antenna, wave filter and low noise amplifier all are connected with MCU decoder looks electric.
The temperature sensing module adopts a DS18B20 temperature sensor, the DS18B20 temperature sensor is in communication connection with the MCU encoder through a 1-Wire protocol, and only a data pin of the temperature sensor and an I/O (input/output) port of the MCU encoder need to be connected when the temperature sensing module is used, so that the condition of a single bus protocol can be simulated by selecting a software mode when the temperature sensing module and the MCU encoder are in communication. When the sensor DS18B20 is used, only the I/O port P2.0 of the MCU encoder needs to be connected, and meanwhile, a 4.7K pull-up resistor needs to be externally connected to a circuit because the single bus is open and leaky. The time interval between the temperature and the voltage collected by the DS18B20 temperature sensor is 1s, and because the DS18B20 temperature sensor causes high and low electrical frequency pulse interference in the conversion process of the temperature digital level, when the temperature digital level is coded by the MCU coder, the transmitting antenna is filtered by the low-noise amplifier, so that the transmission signal can not be distorted.
The MCU coder adopts EV1527 model, the MCU decoder adopts SLRC610 radio frequency chip circuit, and the SLRC610 radio frequency chip circuit forms a receiving circuit through R2, R3, C15 and receiving antenna. The SLRC610 radio frequency chip circuit forms a filter through L1, L2, C5 and C6, the SLRC610 supports four interfaces of SPI, I2C bus, I2CI and UART, and the current host interface type can be judged through IFSEL0 and IFSEL level combination after power-off reset.
The utility model provides a pair of improve low-power consumption sensor's wireless communication circuit's theory of operation as follows:
detect the position through DS18B20 temperature sensor to needing the temperature to detect, then make temperature sensor's signal of telecommunication carry out the code processing back through the MCU encoder, carry out radio wave transmission through radio frequency transmitter and go out, receive through installing the receiving antenna on the radio frequency receiver on the host computer that needs accepted again, rethread filter carries out filtering process with the signal source, obtain pure received signal, be convenient for receive the receipt that the host computer can, rethread MCU decoder carries out decryption process with the signal, so that read out the temperature registration.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an improve low-power consumption sensor's wireless communication circuit, includes temperature sensing module, radio frequency emission module and radio frequency receiving module, its characterized in that: the temperature sensing module is electrically connected with the radio frequency transmitting module, the radio frequency transmitting module is in communication connection with the radio frequency receiving module, the radio frequency transmitting module comprises an MCU (microprogrammed control Unit) encoder, a transmitting antenna, a power amplifier and a low noise amplifier, the transmitting antenna, the power amplifier and the low noise amplifier are all electrically connected with the MCU encoder, the radio frequency receiving module comprises a receiving antenna, an MCU decoder, a filter and a low noise amplifier, and the receiving antenna, the filter and the low noise amplifier are all electrically connected with the MCU decoder.
2. The wireless communication circuit of claim 1, wherein the wireless communication circuit comprises: the temperature sensing module adopts a DS18B20 temperature sensor, and the DS18B20 temperature sensor is in communication connection with the MCU encoder through a 1-Wire protocol.
3. The wireless communication circuit of claim 1, wherein the wireless communication circuit comprises: the MCU encoder adopts an EV1527 model.
4. The wireless communication circuit of claim 1, wherein the wireless communication circuit comprises: the MCU decoder adopts an SLRC610 radio frequency chip circuit, and the SLRC610 radio frequency chip circuit forms a receiving circuit through R2, R3, C15 and a receiving antenna.
5. The wireless communication circuit of claim 4, wherein the wireless communication circuit comprises: the SLRC610 radio frequency chip circuit forms a filter through L1, L2, C5 and C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021271852.1U CN212379963U (en) | 2020-07-01 | 2020-07-01 | Wireless communication circuit for improving low-power consumption sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021271852.1U CN212379963U (en) | 2020-07-01 | 2020-07-01 | Wireless communication circuit for improving low-power consumption sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212379963U true CN212379963U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021271852.1U Active CN212379963U (en) | 2020-07-01 | 2020-07-01 | Wireless communication circuit for improving low-power consumption sensor |
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2020
- 2020-07-01 CN CN202021271852.1U patent/CN212379963U/en active Active
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