Low-power real-time wireless data acquisition terminal integrated with micro power generation

Abstract

The utility model discloses a kind of integrated micro power generation's low-power real-time wireless data acquisition terminal, including micro water wheel power generation module, voltage stabilizing charging circuit, 4G Cat-1 communication module and dual-core main control module, micro water wheel power generation module is installed on water supply pipeline, and sensor for collecting data is provided on water supply pipeline.The utility model uses micro water wheel power generation module to install on water supply pipeline, converts the kinetic energy of flowing water body in water supply system into direct current electric energy, provides operating voltage for voltage stabilizing charging circuit, 4G Cat-1 communication module and dual-core main control module, avoids the problem of battery energy consumption control caused by battery power supply, breaks through the "power consumption bottleneck" and "non-real-time" limitation of traditional low-power terminal, provides innovative solution with high autonomy, high real-time and high adaptability for intelligent pipe network, remote water supply monitoring and other scenes.

Description

Technical Field

[0001] This utility model relates to the field of Internet of Things (IoT) data acquisition technology for water supply networks, and more specifically, to a low-power real-time wireless data acquisition terminal that integrates micro-power generation. Background Technology

[0002] Current IoT devices are battery-powered and are typically deployed in locations where power is inconvenient, such as water meters, manhole covers, and utility networks. These devices use NB-IoT or LoRa for wireless communication.

[0003] The device doesn't send out data immediately after each collection; instead, it continuously collects data internally—for example, by collecting sensor data every 1 minute or 5 minutes. This data is then timestamped and stored in the device's local storage, like taking notes.

[0004] At the set time, such as every two hours, the device will "wake up" the communication module, package the data accumulated during those two hours into a batch, and upload it to the cloud platform all at once via NB-IoT or LoRa.

[0005] After receiving the data, the cloud platform will parse it out one by one. Each record has a clear timestamp, which can accurately reconstruct the changes in the sensors during this period.

[0006] After uploading the data, the device's communication module shuts down and re-enters sleep mode to continue collecting and recording data.

[0007] The entire process repeats itself in a loop: the device wakes up periodically, collects, packages, and uploads data, then goes back to sleep to reduce power consumption and extend battery life. In this way, although the data is uploaded in batches, each data point retains its original time, and the cloud can obtain a complete data curve over a period of time.

[0008] A typical terminal device consists of an MCU main controller, an RTC / timer, a sensor module, a local storage unit, and a communication module. Currently, most IoT projects cannot achieve real-time front-end updates, not because of technical limitations, but because of a low-frequency strategy actively chosen "to save power, money, and resources".

[0009] To reduce energy consumption, this architecture adopts an "intermittent wake-up → batch reporting → sleep" mode instead of "real-time push." ​​Based on power-saving design, it chooses communication links such as NB-IoT and LoRa, which involve low-speed unidirectional transmission with latency typically ranging from seconds to minutes. This makes this architecture suitable for scenarios requiring "non-real-time, periodic reporting, and stable operation," but less ideal for scenarios requiring "high reliability, real-time response, and online command control," especially regarding the status performance of water supply networks.

[0010] Therefore, it is necessary to propose a low-power real-time wireless data acquisition terminal that integrates micro-power generation. Utility Model Content

[0011] This invention provides a low-power real-time wireless data acquisition terminal that integrates micro-power generation, which improves the energy autonomy, real-time communication performance, and overall system stability of the device, thereby solving the problem of poor real-time communication and unstable data transmission caused by existing Internet of Things devices relying on battery power.

[0012] According to one aspect of the present invention, a low-power real-time wireless data acquisition terminal integrating micro-power generation is provided, comprising a micro-hydrogen generator module, a voltage-stabilized charging circuit, a 4G Cat-1 communication module, and a dual-core main control module. The micro-hydrogen generator module is installed on a water supply pipeline, and a sensor for data acquisition is provided on the water supply pipeline. The micro-hydrogen generator module supplies power to the sensor, the 4G Cat-1 communication module, and the dual-core main control module through the voltage-stabilized charging circuit. The 4G Cat-1 communication module and the sensor are electrically connected to the dual-core main control module.

[0013] Based on the above scheme, the preferred option is that the micro-hydropower generation module is an axial flow or centrifugal impeller.

[0014] Based on the above scheme, preferably, the voltage-stabilized charging circuit includes a DC-DC step-up / step-down converter, an output current-limiting protection circuit, and a voltage output setting circuit connected in sequence. The DC-DC step-up / step-down converter is connected to the output terminal of the micro hydropower generation module, and the output terminal of the DC-DC step-up / step-down converter is connected to the voltage output setting circuit through the output current-limiting protection circuit.

[0015] Based on the above scheme, preferably, the voltage output setting circuit has multiple voltage output levels, including 5V, 8.4V, 12.6V and 13.8V.

[0016] Based on the above scheme, the preferred option is that the dual-core main control module is an ESP32-S3-WROOM control chip.

[0017] Based on the above scheme, the preferred embodiment is a 4G Cat-1 cellular communication module.

[0018] This utility model discloses a low-power real-time wireless data acquisition terminal integrating micro-power generation. It uses a micro-hydro turbine power generation module installed in the water supply pipeline to convert the kinetic energy of the flowing water in the water supply system into DC power, providing working voltage for the voltage-stabilized charging circuit, 4G Cat-1 communication module and dual-core main control module. This avoids the problem of battery power consumption control caused by battery power supply, and breaks through the "power consumption bottleneck" and "non-real-time" limitations of traditional low-power terminals. It provides an innovative solution with high autonomy, high real-time performance and high adaptability for scenarios such as smart pipe networks and remote water supply monitoring. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the low-power real-time wireless data acquisition terminal with integrated micro-power generation of this utility model.

[0021] Figure 2 This is a circuit diagram of the voltage-regulated charging circuit of this utility model;

[0022] Explanation of icon numbers:

[0023] 10. Micro hydroelectric power generation module; 20. Voltage regulated charging circuit; 21. DC-DC step-up / step-down converter; 22. Output current limiting protection circuit; 23. Voltage output setting circuit; 24. Voltage output range; 30. 4G Cat-1 communication module; 40. Dual-core main control module. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0026] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0027] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0031] Please see Figure 1 and combined Figure 2 As shown, this utility model discloses a low-power real-time wireless data acquisition terminal with integrated micro-power generation, including a micro-hydro turbine power generation module 10, a voltage stabilizing charging circuit 20, a 4G Cat-1 communication module 30, and a dual-core main control module 40.

[0032] The micro hydropower generation module 10 is installed on the water supply pipeline, and a sensor for data collection is installed on the water supply pipeline. The micro hydropower generation module 10 supplies power to the sensor, the 4G Cat-1 communication module 30 and the dual-core main control module 40 through the voltage stabilizing charging circuit 20. The 4G Cat-1 communication module 30 and the sensor are electrically connected to the dual-core main control module 40.

[0033] The micro hydroelectric power generation module 10 of this utility model is an axial flow or centrifugal impeller, and the selected module has a compact size (about the size of a palm), which is convenient for embedded installation and does not cause significant hydraulic impact on the original water supply pipeline, making it suitable for deployment in confined spaces such as underground, outdoor, and surface wells.

[0034] This utility model uses an axial or centrifugal impeller installed on the water supply pipeline to convert the kinetic energy of the flowing water in the pipeline into DC electrical energy. Combined with the voltage stabilizing charging circuit 20, the DC voltage output by the micro water turbine is stably regulated to meet the power supply requirements of the compatible sensor, 4G Cat-1 communication module 30 and dual-core main control module 40.

[0035] Compared with the traditional battery 50 power supply, this utility model adopts an axial or centrifugal impeller combined with a voltage-stabilized charging circuit 20, which is not limited by the traditional battery 50 power supply. It can stably provide voltage for sensor data acquisition, 4G Cat-1 communication module 30 and dual-core main control module 40 communication control, so that communication, control and data acquisition are not affected by voltage control requirements. It can effectively and continuously collect data, breaking the limitation that traditional low-power devices cannot achieve real-time communication, realizing the continuous and independent energy supply of terminal devices, and effectively improving the energy autonomy, communication real-time performance and overall system stability of the device.

[0036] Furthermore, this invention can also set a battery 50 module at the output end of the micro hydropower generation module 10 to store electricity, and use the voltage-stabilized charging circuit 20 to power the sensor, 4G Cat-1 communication module 30 and dual-core main control module 40.

[0037] Specifically, the voltage-stabilized charging circuit 20 of this utility model includes a DC-DC step-up / step-down converter 21, an output current limiting protection circuit 22, and a voltage output setting circuit 23 connected in sequence by electrofusion. The DC-DC step-up / step-down converter 21 is connected to the output terminal of the micro hydropower generation module 10, and the output terminal of the DC-DC step-up / step-down converter 21 is connected to the voltage output setting circuit 23 through the output current limiting protection circuit 22.

[0038] Among them, the DC-DC buck-boost converter 21 drives the power MOSFET through the internal PWM control circuit and works in conjunction with the energy storage inductor to achieve constant voltage and constant current output under the condition of input voltage range of 5V-30V;

[0039] The voltage output setting circuit 23 has multiple preset voltage output levels 24 at the output terminal, such as 5V, 8.4V, 12.6V, and 13.8V. The target output voltage is selected by shorting the solder pads to be compatible with 50 sets of different types of lithium batteries.

[0040] The output current limiting protection circuit 22 has a current limiting protection function. When the output current exceeds the set upper limit (e.g., 2.88A), it automatically enters the current limiting mode to protect the load and the safety of the 50 battery packs.

[0041] Furthermore, this invention provides a feedback control path (FB) between the micro hydropower generation module 10 and the DC-DC step-up / step-down converter 21, which feeds back a portion of the output voltage to the dual-core main control module 40 to achieve real-time stabilization of the output voltage.

[0042] The output port of the voltage output setting circuit 23 of this utility model has constant current-constant voltage (CC-CV) dual protection characteristics.

[0043] The voltage circuit structure of this invention is compact, suitable for embedded wiring, and has high stability, high compatibility and long-term continuous operation capability, ensuring that the terminal equipment can still operate stably under various environmental voltage fluctuations.

[0044] Among them, the dual-core main control module 40 is the ESP32-S3-WROOM control chip. This chip integrates a dual-core processor based on the Xtensa LX7 architecture, which has higher concurrency performance and edge computing capabilities. It is especially suitable for embedded scenarios with high real-time requirements such as water pressure monitoring, remote diagnosis, and command response.

[0045] Among them, the 4G Cat-1 communication module 30 is a 4G Cat-1 cellular communication module or Quectel EC200 or a similar device. This structure combines a low-power control strategy and a data threshold triggering mechanism to ensure real-time communication while controlling the data upload frequency, thus balancing energy saving and response speed.

[0046] This utility model discloses a low-power real-time wireless data acquisition terminal integrating micro-power generation. It uses a micro-hydropower generation module 10 installed in the water supply pipeline to convert the kinetic energy of the flowing water in the water supply system into DC power, providing working voltage for the voltage-stabilized charging circuit 20, the 4G Cat-1 communication module 30, and the dual-core main control module 40. This avoids the problem of controlling the energy consumption of the battery 50 caused by using the battery 50 for power supply. It breaks through the "power consumption bottleneck" and "non-real-time" limitations of traditional low-power terminals, and provides an innovative solution with high autonomy, high real-time performance, and high adaptability for scenarios such as smart pipe networks and remote water supply monitoring.

[0047] Compared with the prior art, the present invention has the following advantages:

[0048] 1. By integrating a micro hydro turbine power generation module, the kinetic energy of the flowing water in the water supply pipeline is fully utilized for energy recovery, providing the equipment with 3–12V DC power output with a maximum of 5W;

[0049] 2. Equipped with a voltage-regulating charging circuit, the output power is regulated and current-limited to ensure stable system operation and extend the life of the energy storage unit;

[0050] 3. It adopts a 4G Cat-1 module to replace the traditional LoRa / NB-IoT communication method, supports stable TCP connection and MQTT keep-alive, and achieves low latency and high reliability data transmission;

[0051] 4. The main control module adopts an ESP32-S3 dual-core processor, supports FreeRTOS concurrent scheduling, and significantly enhances the terminal's operating efficiency in multi-task scenarios such as simultaneous data acquisition, judgment, communication, and control;

[0052] 5. Ensure that the system maintains strong edge response and online control capabilities while keeping power consumption low, so as to adapt to the needs of more complex industrial and urban pipeline network environments.

[0053] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A low-power real-time wireless data acquisition terminal integrating micro-power generation, characterized in that, The device includes a micro hydroelectric power generation module, a voltage-stabilized charging circuit, a 4G Cat-1 communication module, and a dual-core main control module. The micro hydroelectric power generation module is installed on a water supply pipeline, and a sensor for data collection is installed on the water supply pipeline. The micro hydroelectric power generation module supplies power to the sensor, the 4G Cat-1 communication module, and the dual-core main control module through the voltage-stabilized charging circuit. The 4G Cat-1 communication module and the sensor are electrically connected to the dual-core main control module.

2. The low-power real-time wireless data acquisition terminal integrating micro-power generation as described in claim 1, characterized in that, The micro-hydropower generation module is an axial flow or centrifugal impeller.

3. The low-power real-time wireless data acquisition terminal integrating micro-power generation as described in claim 1, characterized in that, The voltage-regulated charging circuit includes a DC-DC step-up / step-down converter, an output current-limiting protection circuit, and a voltage output setting circuit connected in sequence. The DC-DC step-up / step-down converter is connected to the output terminal of the micro hydroelectric power generation module, and the output terminal of the DC-DC step-up / step-down converter is connected to the voltage output setting circuit through the output current-limiting protection circuit.

4. The low-power real-time wireless data acquisition terminal with integrated micro-power generation as described in claim 3, characterized in that, The voltage output setting circuit has multiple voltage output levels, including 5V, 8.4V, 12.6V and 13.8V.

5. A low-power real-time wireless data acquisition terminal integrating micro-power generation as described in claim 1, characterized in that, The dual-core main control module is an ESP32-S3-WROOM control chip.

6. A low-power real-time wireless data acquisition terminal integrating micro-power generation as described in claim 1, characterized in that, The 4G Cat-1 communication module is a 4G Cat-1 cellular communication module.

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