CN212381211U

CN212381211U - IOT module of low-power consumption

Info

Publication number: CN212381211U
Application number: CN202020950525.2U
Authority: CN
Inventors: 李玉涛; 管晖
Original assignee: Huizhou Gaoshengda Technology Co Ltd
Current assignee: Huizhou Gaoshengda Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-01-19
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a low-power consumption IOT module, including IOT control circuit, interface circuit, power supply circuit, BLE circuit and zigBee circuit respectively with the IOT control circuit electricity is connected; the BLE circuit comprises a first matching unit, a BLE chip and a Bluetooth antenna, the Bluetooth antenna is electrically connected with the first matching unit, the first matching unit is further electrically connected with the BLE chip, and the BLE chip is electrically connected with the IOT control circuit through a USB communication interface. The utility model relates to a low-power consumption's IOT module through setting up IOT control circuit, BLE circuit and zigBee circuit, compares in current AP module, can simplify circuit structure effectively, reduces the consumption of module, but also can reduce cost, practices thrift the space of module.

Description

IOT module of low-power consumption

Technical Field

The utility model relates to a thing networking communication module field especially relates to a IOT module of low-power consumption.

Background

IoT is an abbreviation of the Internet of Things, and the literal translation is "Internet of objects", and the accurate translation should be "Internet of Things". The Internet of Things (Internet of Things) is also called a sensor network, and is simply the extension of the Internet from people to Things. The internet of things refers to a huge network formed by combining various information sensing devices, such as radio frequency identification devices, infrared sensors, global positioning systems, laser scanners and the like, with the internet. The purpose is to connect all articles with the network, which is convenient for identification and management.

With the rapid development of the internet of things technology, intelligent devices have become more and more popular, and household devices which are visible everywhere in life have become more intelligent. Most gateways in the market control various other household devices by taking an AP module scheme as a control main body, and are relatively expensive in cost, relatively large in occupied space in appearance, relatively low in resource utilization rate and large in power consumption. As is known, the AP module scheme has an MCU control system, and a higher kernel configuration, and is mainly used for processing communication between big data and high traffic. For the smart home, the communication between the system and the peripheral is mostly carried out with small data and low flow, so that the requirement on the MCU control system is greatly reduced, and the power consumption is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing a IOT module of low-power consumption, comparing in current AP module, can simplify circuit structure effectively, reduce the consumption of module, but also can reduce cost, practice thrift the space of module.

The purpose of the utility model is realized through the following technical scheme:

a low power IOT module, comprising: the device comprises an IOT control circuit, an interface circuit, a power supply circuit, a BLE circuit and a ZigBee circuit, wherein the interface circuit, the power supply circuit, the BLE circuit and the ZigBee circuit are respectively and electrically connected with the IOT control circuit;

the BLE circuit comprises a first matching unit, a BLE chip and a Bluetooth antenna, the Bluetooth antenna is electrically connected with the first matching unit, the first matching unit is also electrically connected with the BLE chip, and the BLE chip is electrically connected with the IOT control circuit through a USB communication interface;

the ZigBee circuit comprises a second matching unit, a ZigBee chip and a ZigBee antenna, the ZigBee antenna is electrically connected with the second matching unit, the second matching unit is also electrically connected with the ZigBee chip, and the ZigBee chip is electrically connected with the IOT control circuit through a UART communication interface.

In one embodiment, the interface circuit adopts a USB interface circuit or a micro USB interface circuit.

In one embodiment, the first matching unit includes a capacitor C18, a capacitor C19, a capacitor C20, and an inductor L4, the capacitor C19, the capacitor C20, and the inductor L4 form a pi-type filtering unit, one end of the capacitor C18 is electrically connected to a BLE antenna, and the other end of the capacitor C18 is electrically connected to the BLE chip after passing through the inductor L4.

In one embodiment, the second matching unit includes a capacitor C23, a capacitor C21, a capacitor C22 and an inductor L5, the capacitor C21, the capacitor C22 and the inductor L5 form a pi-type filter unit, one end of the capacitor C23 is electrically connected to the ZigBee antenna, and the other end of the capacitor C23 is electrically connected to the ZigBee chip through the inductor L5.

In one embodiment, the IOT control circuit includes an IOT chip, a dual matching unit, a communication unit, and an antenna, wherein the dual matching unit and the communication unit are electrically connected to the IOT chip, respectively, and the antenna is electrically connected to the dual matching unit.

In one embodiment, the IOT control circuit further includes a crystal oscillator unit electrically connected to the IOT chip.

In one embodiment, the dual matching unit includes an antenna matching branch and an impedance matching branch, one end of the antenna matching branch is electrically connected to the antenna, and the other end of the antenna matching branch is electrically connected to the IOT chip after passing through the impedance matching branch.

In one embodiment, the power circuit includes a voltage conversion unit and a feedback unit, one end of the voltage conversion unit is electrically connected to the interface circuit, and the other end of the voltage conversion unit is electrically connected to the feedback unit and the IOT control circuit, respectively.

In one embodiment, the voltage conversion unit includes a capacitor C15, a capacitor C16, an inductor L3, and a voltage conversion chip Q1, the capacitor C15 and the capacitor C16 are respectively electrically connected to an input terminal of the voltage conversion chip Q1, and an output terminal of the voltage conversion chip Q1 is shaped and filtered by the inductor L3 to output a converted voltage.

In one embodiment, the feedback unit includes a resistor R3 and a resistor R4, one end of the resistor R3 is electrically connected to the output terminal of the voltage converting unit, and the other end of the resistor R3 is electrically connected to the voltage converting unit and the resistor R4, respectively.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a low-power consumption's IOT module through setting up IOT control circuit, BLE circuit and zigBee circuit, compares in current AP module, can simplify circuit structure effectively, reduces the consumption of module, but also can reduce cost, practices thrift the space of module.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a functional block diagram of an IOT module with low power consumption according to an embodiment of the present invention;

FIG. 2 is a circuit diagram of a first matching unit of the IOT module of FIG. 1;

figure 3 is a circuit diagram of a BLE chip of the low power consumption IOT module shown in figure 1;

FIG. 4 is a circuit diagram of a second matching unit of the IOT module of FIG. 1;

FIG. 5 is a circuit diagram of a ZigBee chip of the IOT module with low power consumption shown in FIG. 1;

FIG. 6 is a circuit diagram of the IOT control circuit of the low power IOT module of FIG. 1;

FIG. 7 is a circuit diagram of a crystal oscillator unit of the IOT module with low power consumption shown in FIG. 1;

FIG. 8 is a circuit diagram of an external communication circuit of the low power IOT module of FIG. 1;

FIG. 9 is a circuit diagram of a power circuit of the low power IOT module of FIG. 1;

fig. 10 is a circuit diagram of an interface circuit of the IOT module shown in fig. 1 with low power consumption.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an IOT module with low power consumption includes: the device comprises an IOT control circuit 100, an interface circuit 200, a power circuit 300, a BLE circuit 400 and a ZigBee circuit 500, wherein the interface circuit, the power circuit, the BLE circuit and the ZigBee circuit are respectively and electrically connected with the IOT control circuit.

It should be noted that the IOT control circuit 100 is used to control the operation of the IOT module; the interface circuit 200 is used for connecting an external power supply device; the power circuit 300 is used for providing power for the IOT module; the BLE circuit 400 is used for being connected with an external bluetooth device, and the ZigBee circuit 500 is used for being connected with an external ZigBee device. Therefore, compared with the existing AP module, the circuit structure can be effectively simplified, the power consumption of the module is reduced, the cost can be reduced, and the space of the module is saved.

The BLE circuit 400 includes a first matching unit 410, a BLE chip 420, and a bluetooth antenna 430, the bluetooth antenna is electrically connected to the first matching unit, the first matching unit is further electrically connected to the BLE chip, and the BLE chip is electrically connected to the IOT control circuit through a USB communication interface. It should be noted that the first matching unit is configured to absorb an interference signal, so that an input signal is purer; the BLE chip is used for realizing Bluetooth connection; the Bluetooth antenna is used for transmitting or receiving Bluetooth signals. It should be further noted that BLE is a bluetooth low energy technology, and belongs to one of bluetooth technologies.

With the continuous maturity of the BT technology, the BLE technology is also widely applied, enjoyed by the public with the unique advantage of low power consumption, and widely applied to intelligent homes and intelligent wearing equipment. Further, the utility model discloses a change external BT module into BLE module. Compared with the BT module, the classic Bluetooth part of the BT in the intelligent field can be completely replaced by BLE, so that the effect of reducing the cost is achieved.

The ZigBee circuit 500 includes a second matching unit 510, a ZigBee chip 520, and a ZigBee antenna 530, the ZigBee antenna is electrically connected to the second matching unit, the second matching unit is further electrically connected to the ZigBee chip, and the ZigBee chip is electrically connected to the IOT control circuit through a UART communication interface. It should be noted that the second matching unit is configured to filter an interference signal; the ZigBee chip is used for connecting the ZigBee module; the ZigBee antenna is used for transmitting or receiving signals.

Further, the utility model discloses an increase peripheral circuits such as ziggber to can strengthen the utilization ratio and the multi-functionalization of resource, ziggber circuit consumption is also lower simultaneously, satisfies holistic low-power consumption demand.

It should be noted that, in this embodiment, the IOT module is used to replace the existing AP module, so as to achieve the maximum utilization rate of resources, and further achieve the effects of reducing power consumption, protecting environment, and saving energy. The AP module has relatively large power consumption due to the MCU system and function requirements, and the IOT module mainly carries out small data and small flow communication, so that the power consumption has larger requirements, the module belongs to the category of low power consumption, and the improvement of the invention on the power consumption and the data utilization rate is very considerable from the power consumption point of view

Referring to fig. 2 and 3, the first matching unit includes a capacitor C18, a capacitor C19, a capacitor C20, and an inductor L4, the capacitor C19, the capacitor C20, and the inductor L4 form a pi-type filtering unit, one end of the capacitor C18 is electrically connected to a BLE antenna, and the other end of the capacitor C18 is electrically connected to the BLE chip after passing through the inductor L4. Therefore, the reliability of data receiving of the Bluetooth chip can be improved.

Referring to fig. 4 and 5, the second matching unit includes a capacitor C23, a capacitor C21, a capacitor C22, and an inductor L5, the capacitor C21, the capacitor C22, and the inductor L5 form a pi-type filter unit, one end of the capacitor C23 is electrically connected to the ZigBee antenna, and the other end of the capacitor C23 is electrically connected to the ZigBee chip after passing through the inductor L5. Therefore, the reliability of the ZigBee chip for receiving signals can be improved.

Referring to fig. 6, the IOT control circuit includes an IOT chip, a dual matching unit, a communication unit, and an antenna, where the dual matching unit and the communication unit are electrically connected to the IOT chip, respectively, and the antenna is electrically connected to the dual matching unit.

Referring to fig. 7, the IOT control circuit further includes a crystal oscillator unit electrically connected to the IOT chip. Thus, the IOT chip can work more stably.

Referring to fig. 8, the IOT control circuit further includes an external communication circuit, so that more devices can be connected by the external communication circuit, and data transmission is facilitated.

Referring to fig. 6, the dual matching unit includes an antenna matching branch and an impedance matching branch, one end of the antenna matching branch is electrically connected to the antenna, and the other end of the antenna matching branch is electrically connected to the IOT chip after passing through the impedance matching branch. Therefore, by arranging the antenna matching branch and the impedance matching branch, the signal receiving or transmitting can be more stable and purer.

Referring to fig. 9, the power circuit includes a voltage conversion unit and a feedback unit, one end of the voltage conversion unit is electrically connected to the interface circuit, and the other end of the voltage conversion unit is electrically connected to the feedback unit and the IOT control circuit, respectively.

Specifically, the voltage conversion unit includes a capacitor C15, a capacitor C16, an inductor L3, and a voltage conversion chip Q1, where the capacitor C15 and the capacitor C16 are respectively electrically connected to an input terminal of the voltage conversion chip Q1, and an output terminal of the voltage conversion chip Q1 is shaped and filtered by the inductor L3 to output a converted voltage. Therefore, the voltage conversion unit can provide stable voltage for the IOT control circuit, so that the IOT control circuit can work normally.

Further, the feedback unit comprises a resistor R3 and a resistor R4, one end of the resistor R3 is electrically connected with the output end of the voltage conversion unit, and the other end of the resistor R3 is electrically connected with the voltage conversion unit and the resistor R4 respectively. In this way, the output voltage can be adjusted to a suitable range.

It should be noted that, the maximum utilization of resources is realized, the cost is reduced by using the IOT module to replace the AP module, and the space is saved. Meanwhile, the BLE circuit is used for replacing the existing BT circuit, so that the waste of data can be reduced, and the design of low power consumption can be realized, thereby achieving the effects of reducing the cost and saving the space.

Referring to fig. 10, it should be noted that the interface circuit adopts a USB interface circuit or a micro USB interface circuit. The utility model discloses because of the arrangement consumption is lower, compare current technique, also can do the optimization on the cost in the power supply part, simultaneously because the simplification of circuit, the mode and the interface of power supply can be diversified, for example can use the mode of USB interface or the mode of micro USB interface to reach the convenience of mounting means.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An IOT module with low power consumption, comprising: the device comprises an IOT control circuit, an interface circuit, a power supply circuit, a BLE circuit and a ZigBee circuit, wherein the interface circuit, the power supply circuit, the BLE circuit and the ZigBee circuit are respectively and electrically connected with the IOT control circuit;

2. The low power consumption IOT module in accordance with claim 1, wherein the interface circuit is implemented as a USB interface circuit or a micro USB interface circuit.

3. The low-power consumption IOT module according to claim 1, wherein the first matching unit comprises a capacitor C18, a capacitor C19, a capacitor C20, and an inductor L4, the capacitor C19, the capacitor C20, and the inductor L4 form a pi-type filter unit, one end of the capacitor C18 is electrically connected to a BLE antenna, and the other end of the capacitor C18 is electrically connected to the BLE chip through the inductor L4.

4. The IOT module with low power consumption of claim 1, wherein the second matching unit comprises a capacitor C23, a capacitor C21, a capacitor C22 and an inductor L5, the capacitor C21, the capacitor C22 and the inductor L5 form a pi-shaped filtering unit, one end of the capacitor C23 is electrically connected with a ZigBee antenna, and the other end of the capacitor C23 is electrically connected with the ZigBee chip after passing through the inductor L5.

5. The low-power consumption IOT module set of claim 1, wherein the IOT control circuit comprises an IOT chip, a dual matching unit, a communication unit and an antenna, the dual matching unit and the communication unit are electrically connected with the IOT chip respectively, and the antenna is electrically connected with the dual matching unit.

6. The low-power consumption IOT module of claim 5, wherein the IOT control circuit further comprises a crystal oscillator unit electrically connected with the IOT chip.

7. The IOT module of claim 5, wherein the dual matching unit comprises an antenna matching branch and an impedance matching branch, one end of the antenna matching branch is electrically connected to the antenna, and the other end of the antenna matching branch is electrically connected to the IOT chip after passing through the impedance matching branch.

8. The IOT module of claim 1, wherein the power circuit comprises a voltage conversion unit and a feedback unit, one end of the voltage conversion unit is electrically connected to the interface circuit, and the other end of the voltage conversion unit is electrically connected to the feedback unit and the IOT control circuit, respectively.

9. The IOT module with low power consumption of claim 8, wherein the voltage conversion unit comprises a capacitor C15, a capacitor C16, an inductor L3 and a voltage conversion chip Q1, the capacitor C15 and the capacitor C16 are respectively electrically connected with the input end of the voltage conversion chip Q1, and the output end of the voltage conversion chip Q1 is shaped and filtered by the inductor L3 to output a converted voltage.

10. The IOT module of low power consumption of claim 8, wherein the feedback unit comprises a resistor R3 and a resistor R4, one end of the resistor R3 is electrically connected to the output terminal of the voltage conversion unit, and the other end of the resistor R3 is electrically connected to the voltage conversion unit and the resistor R4, respectively.