CN219875953U - Data acquisition device based on LoRa communication - Google Patents

Abstract

The utility model provides a data acquisition device based on LoRa communication, which comprises a power supply module, a data acquisition module, a data processing module, a LoRa communication module and a power supply control module, wherein the power supply module is connected with the data processing module; the first end of the power module is connected with the power end of the data processing module, and the second end of the power module is connected with the power end of the power supply control module; the output end of the data acquisition module is connected with the input end of the data processing module, and the communication end of the data processing module is connected with the communication end of the LoRa communication module; the output end of the data processing module is connected with the input end of the power supply control module, the output end of the power supply control module is connected with the power end of the data acquisition module, and the power supply control module is used for switching on or switching off the power supply of the data acquisition module. The utility model adopts the LoRa communication module to realize ultra-low power consumption communication, and the power supply of the data acquisition module is turned off through the power supply control module after the data transmission is completed, thereby effectively reducing the static power consumption of the equipment.

Description

Data acquisition device based on LoRa communication

Technical Field

The utility model relates to the technical field of data acquisition, in particular to a data acquisition device based on LoRa communication.

Background

With the rapid development of sensors and communication technologies, online detection instruments such as a grain temperature detector, a temperature and humidity detector, a small weather station and the like are used for monitoring grain conditions in grain storage. Through these detectors, people can more conveniently acquire grain condition information.

At present, wired power supply is commonly adopted for the detectors, operation and maintenance personnel issue acquisition instructions to the detectors through a client every day, then parameter information such as grain temperature, air humidity and the like is acquired through a sensor of equipment, and then the parameter information is processed and analyzed through a microprocessor and reported back to the client, and acquisition results, equipment states and the like are displayed through the client.

However, most of these detectors work on-line in real time for a long time, and although the data can be automatically collected and uploaded at a specific time, the detectors are unfavorable for realizing energy saving and consumption reduction, reducing carbon emission and also affecting the service life of equipment.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

The utility model provides a data acquisition unit based on LoRa communication, which comprises: the device comprises a power supply module, a data acquisition module, a data processing module, a LoRa communication module and a power supply control module;

the first end of the power module is connected with the power end of the data processing module, and the second end of the power module is connected with the power end of the power supply control module;

the output end of the data acquisition module is connected with the input end of the data processing module, and the communication end of the data processing module is connected with the communication end of the LoRa communication module;

the output end of the data processing module is connected with the input end of the power supply control module, the output end of the power supply control module is connected with the power end of the data acquisition module, and the power supply control module is used for switching on or switching off the power supply of the data acquisition module.

In some embodiments, the power module includes:

a charging circuit and a battery assembly;

the first end of the charging circuit is connected with the input end of the battery assembly, the output end of the battery assembly is connected with the first end of the power module, and the second end of the charging circuit is connected with the second end of the power module.

In some embodiments, the communication end of the data processing module comprises a remote wake-up signal input end and a sensing signal output end, and the communication end of the LoRa communication module comprises a wake-up signal output end and a sensing signal input end;

the sensing signal input end of the LoRa communication module is connected with the sensing signal output end of the data processing module, and the LoRa communication module is used for sending the sensing data output by the data processing module to a monitoring platform;

the wake-up signal output end of the LoRa communication module is connected with the remote wake-up signal input end of the data processing module, and the LoRa communication module is further used for waking up the data processing module from a low-power consumption mode to enter a normal working mode.

In some embodiments, the LoRa communication-based data collector further comprises:

a manual wake-up module;

the output end of the manual wake-up module is connected with the local wake-up signal input end of the data processing module, and the manual wake-up module is used for waking up the data processing module from a low-power consumption mode to a normal working mode.

In some embodiments, the data processing module includes a timed wake-up circuit by which the data processing module wakes up from a low power mode for a normal mode of operation.

According to the data acquisition device based on LoRa communication, the output signals of the data processing module are wirelessly transmitted through the LoRa communication module, so that ultra-low power consumption communication is realized, and the power supply of the data acquisition module is turned off through the power supply control module after data acquisition is completed, so that the static power consumption of the device is effectively reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic circuit diagram of a LoRa communication-based data collector according to an embodiment of the present utility model;

FIG. 2 is a schematic circuit diagram of a LoRa communication-based data collector according to another embodiment of the present utility model;

fig. 3 is a schematic circuit diagram of a charging circuit according to an embodiment of the present utility model;

FIG. 4 is a schematic circuit diagram of a data processing module according to an embodiment of the present utility model;

fig. 5 is a schematic circuit diagram of a LoRa communication module according to an embodiment of the utility model;

FIG. 6 is a schematic circuit diagram of a manual wake-up module according to an embodiment of the present utility model;

fig. 7 is a schematic circuit diagram of a power supply control module according to an embodiment of the utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Fig. 1 shows a schematic circuit diagram of a data collector based on LoRa communication according to an embodiment of the present utility model. The LoRa communication, i.e., long Range Radio (Long Range Radio) communication, is a prior art in the field, and is not described herein.

As shown in fig. 1, the data collector 100 based on the LoRa communication may include a power module 110, a data collection module 120, a data processing module 130, a LoRa communication module 140, and a power supply control module 150.

The first end of the power module 110 is connected to the power end of the data processing module, and the second end of the power module 110 is connected to the power end of the power supply control module 150.

It will be appreciated that the power module 110 is capable of providing a power signal to the data processing module 130 via a first terminal, while providing a power signal to the power control module 150 via a second terminal.

The output end of the data acquisition module 120 is connected to the input end of the data processing module 130, and the communication end of the data processing module 130 is connected to the communication end of the LoRa communication module 140.

The data acquisition module 120 is configured to acquire parameter information such as temperature and humidity, and send the parameter information to the data processing module 130, and the parameter information is processed and analyzed by the data processing module 130 and then sent to the LoRa communication module 140 for real-time uploading.

The output end of the data processing module 130 is connected to the input end of the power supply control module 150, the output end of the power supply control module 150 is connected to the power end of the data acquisition module 120, and the power supply control module 150 is used for turning on or off the power supply of the data acquisition module 120.

It can be appreciated that when the data acquisition module 120 only acquires parameter information such as temperature and humidity at a specific time, the data acquisition module only needs to work at a specific time or within a specific period of time. Therefore, in the embodiment of the present utility model, the data processing module 130 outputs the control signal, so that the power supply control module 150 turns off the power supply of the data acquisition module 120 after the data acquisition is completed. Thus, the data acquisition module 120 does not need to work online for a long time, and the static power consumption of the collector is reduced.

The data collector based on LoRa communication provided in the embodiment of the present utility model obtains the required parameter information through the data collection module 120, and sends the parameter information to the data processing module 130. Furthermore, the signal processed by the data processing module 130 is wirelessly transmitted through the LoRa communication module 140, so that ultra-low power consumption communication is realized, and the power supply of the data acquisition module 120 is turned off through the power supply control module 150 after data acquisition is completed, so that the static power consumption of the equipment is effectively reduced.

Fig. 2 shows a schematic circuit diagram of a data collector based on LoRa communication according to another embodiment of the present utility model.

As shown in fig. 2, the LoRa communication-based data collector 200 may include a power module 210, a data collection module 220, a data processing module 230, a LoRa communication module 240, a power control module 250, and a manual wake-up module 260.

The first end of the power module 210 is connected to the power end of the data processing module 230, and the second end of the power module 210 is connected to the power end of the power supply control module 250.

It should be noted that, in order to improve the reliability and the service life of the power module 210, in the embodiment of the utility model, the power module 210 includes a charging circuit and a battery assembly. The battery assembly is an independent rechargeable battery, and the first end of the charging circuit is connected with the input end of the battery assembly, so that the battery assembly is charged when the electric quantity of the battery is insufficient.

The output of the battery assembly is connected to the first end of the power module 210, i.e., the collector is powered by the battery assembly. A second terminal of the charging circuit is connected to a second terminal of the power module 210 to power other functional modules in the device. The circuit diagram of the charging circuit is shown IN fig. 3, wherein bat_in is a first terminal of the charging circuit, and d5v_bus is a second terminal of the charging circuit.

The output end of the data acquisition module 220 is connected with the input end of the data processing module 230, and the communication end of the data processing module 230 is connected with the communication end of the LoRa communication module 240; the data processing module 230 includes a timed wake-up circuit by which the data processing module 230 wakes up from a low power mode for a normal mode of operation.

The data acquisition module 220 is configured to acquire parameter information such as temperature and humidity, and send the parameter information to the data processing module 230, and the parameter information is processed and analyzed by the data processing module 230 and then sent to the LoRa communication module 240 for real-time uploading. It will be appreciated that the data processing module 230 does not need to work when the data acquisition, transmission at a particular time is completed. Thus, a sleep state may be entered to reduce device power consumption.

In the embodiment of the utility model, the timing wake-up circuit can be set according to the time point of data acquisition, so that the data processing module 230 enters the low-power consumption mode in the period of no data acquisition, and wakes up to enter the normal working mode in the period of data acquisition.

As shown in fig. 4, in the embodiment of the present utility model, the data processing module 230 performs data acquisition and data processing by using a single chip microcomputer (HC 32L 130) supporting ultra-low power consumption, where the single chip microcomputer is in a DC3V deep sleep mode, i.e. all clocks are turned off, power-on reset is effective, IO state is maintained, IO interrupt is effective, power consumption in data storage states of all registers, RAM and CPU is only 0.5 μa, and in a normal low-speed operation mode, i.e. when both CPU and peripheral are operating normally at an operating frequency of 32.768kHz, the operating current is only 7uA.

In the embodiment of the present utility model, the communication end of the data processing module 230 includes a remote wake-up signal input end and a sensing signal output end, and the communication end of the LoRa communication module 240 includes a wake-up signal output end and a sensing signal input end;

the sensing signal input end of the LoRa communication module 240 is connected with the sensing signal output end of the data processing module 230, and the LoRa communication module 240 is used for sending the sensing data output by the data processing module 230 to the monitoring platform;

the wake-up signal output end of the LoRa communication module 240 is connected to the remote wake-up signal input end of the data processing module 230, and the LoRa communication module 240 is further configured to wake-up the data processing module 230 from the low power mode into the normal operation mode.

It should be noted that, in a special case, the monitoring platform may need to additionally collect data for a certain period of time in addition to the normal operation period. In the embodiment of the present utility model, by setting the remote wake-up signal input end for the data processing module 230, the LoRa communication module 240 can send a wake-up instruction to the data processing module 230 through the wake-up signal output end after receiving the instruction of the monitoring platform, so as to wake up the data processing module 230 remotely and enter a normal working mode.

As shown in FIG. 5, in the embodiment of the utility model, the LoRa communication module E330-400T13S supporting ultra-low power consumption communication is adopted, the LDC ultra-low power consumption receiving mode is supported, the low power consumption single-point awakening is supported, the same-frequency false awakening problem is solved, and the overall power consumption is reduced to 20mW.

When the LoRa communication module 240 receives the remote wake-up instruction, an interrupt signal LR AUX is generated and an interrupt signal is sent to the data processing module 230, so that the data processing module 230 wakes up from the low power mode into the normal operation mode.

In addition, in order to further improve the reliability and diversity of the functions of the data collector, in the embodiment of the present utility model, the local wake-up of the device is implemented by the manual wake-up module 260.

Specifically, the output end of the manual wake-up module 260 is connected to the local wake-up signal input end of the data processing module 230, and the manual wake-up module 260 is configured to wake-up the data processing module 230 from the low power consumption mode to the normal operation mode.

The manual wake-up module 260 is shown in fig. 6, wherein the local wake-up signal wkup_key is generated by closing the KEY S301, and the local wake-up signal is input to the data processing module 230, so that the data processing module can wake up the data processing module from the low power mode to the normal operation mode.

The output end of the data processing module 230 is connected with the input end of the power supply control module 250, the output end of the power supply control module 250 is connected with the power end of the data acquisition module 220, and the power supply control module 250 is used for switching on or off the power supply of the data acquisition module 220.

In an embodiment of the present utility model, a schematic circuit diagram of the power supply control module 250 is shown in fig. 7. When data is required to be collected, the data processing module 230 generates the control signal PEN VOUT, so that the power supply control module 250 outputs a power signal to supply power to the data collecting module 220. After the data acquisition is completed, the data processing module 230 controls the power supply control module 250 to close the power supply output, and the data acquisition module 220 is powered off to stop working.

The specific working process of the data collector based on LoRa communication in the embodiment of the utility model is described in detail below.

Firstly, setting a working period of a data collector according to data collection requirements of a monitoring platform, enabling the data collector to collect parameter information through a data collection module in the working period, and processing and uploading data through a data processing module and a LoRa communication module; and the data acquisition device is in a low-power consumption mode when being dormant at fixed time outside the working period, and the power supply of the data acquisition module is closed, so that the data acquisition module is powered off to stop working, and the static power consumption of the equipment is fully reduced.

In addition, under special circumstances, the monitoring platform can wake up the data acquisition unit through the long-range data acquisition unit of loRa communication module, also can wake up the data acquisition unit locally through manual wake up the module, makes its normal work.

In the embodiment of the utility model, the rechargeable battery is used for supplying power to the equipment, and the charging circuit is arranged for charging the battery, so that the cost of replacing the battery can be avoided, and the working efficiency is improved;

in the embodiment of the utility model, a singlechip (HC 32L 130) supporting ultra-low power consumption is adopted for data acquisition and data processing, a LoRa communication module supporting ultra-low power consumption communication is adopted, and the power consumption is microampere level.

In the embodiment of the utility model, the data collector is dormant at regular time to enter a low-power consumption mode, and the data collector supports point-to-point wireless communication wakeup, supports regular wakeup, ensures low power consumption to the maximum extent and does not influence normal working efficiency.

In the embodiment of the utility model, the power supply control module has the function of switching on and off the power supply of the data acquisition module, and only switches on the data acquisition function when in work, thereby effectively reducing the static power consumption of the equipment.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Claims (5)

1. Data collection station based on LoRa communication, characterized in that includes:

the device comprises a power supply module, a data acquisition module, a data processing module, a LoRa communication module and a power supply control module;

the first end of the power module is connected with the power end of the data processing module, and the second end of the power module is connected with the power end of the power supply control module;

the output end of the data acquisition module is connected with the input end of the data processing module, and the communication end of the data processing module is connected with the communication end of the LoRa communication module;

the output end of the data processing module is connected with the input end of the power supply control module, the output end of the power supply control module is connected with the power end of the data acquisition module, and the power supply control module is used for switching on or switching off the power supply of the data acquisition module.

2. The data collector of claim 1 wherein the power module comprises:

a charging circuit and a battery assembly;

the first end of the charging circuit is connected with the input end of the battery assembly, the output end of the battery assembly is connected with the first end of the power module, and the second end of the charging circuit is connected with the second end of the power module.

3. The data collector of claim 1 wherein the communication end of the data processing module comprises a remote wake-up signal input end and a sense signal output end, and the communication end of the LoRa communication module comprises a wake-up signal output end and a sense signal input end;

the sensing signal input end of the LoRa communication module is connected with the sensing signal output end of the data processing module, and the LoRa communication module is used for sending the sensing data output by the data processing module to a monitoring platform;

the wake-up signal output end of the LoRa communication module is connected with the remote wake-up signal input end of the data processing module, and the LoRa communication module is further used for waking up the data processing module from a low-power consumption mode to enter a normal working mode.

4. The data collector as in claim 1, further comprising:

a manual wake-up module;

the output end of the manual wake-up module is connected with the local wake-up signal input end of the data processing module, and the manual wake-up module is used for waking up the data processing module from a low-power consumption mode to a normal working mode.

5. A data collector as claimed in any one of claims 1 to 4, wherein the data processing module comprises a timed wake-up circuit by which the data processing module wakes up from a low power mode to a normal mode of operation.