Low-power-consumption soil temperature and humidity cloud sensor
Through the clock module and interrupt module combined with microcontroller control, the interval start of the sensor is achieved, which solves the high power consumption problem caused by the continuous opening of the sensor and realizes low-power data acquisition and interaction.
Patent Information
- Application Number
- CN202422361825.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The continuous opening of existing sensors in the workplace results in large power consumption, so how to reduce power consumption without affecting the normal operation of data acquisition and interaction.
The clock module and interrupt module are used to cooperate with the microcontroller to enable interval startup through timed wake-up and selective startup of the sensor unit and communication module, and combined with the power control unit to switch modes, the interval start-up is achieved and power consumption is reduced.
It significantly reduces the power consumption of the sensor while ensuring the normal progress of data acquisition and interaction. The sensor is in sleep mode most of the time to reduce energy consumption.
Smart Images
Figure CN223122258U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sensors, in particular to a low-power soil temperature and humidity cloud sensor. Background Art
[0002] In the prior art, after the sensor is placed in the working site, the sensor continuously turns on, performs data acquisition, data interaction and other operations, which results in high power consumption of the sensor.
[0003] Therefore, how to reduce the power consumption of the sensor while not affecting the normal operations such as data acquisition of the sensor has become a technical problem urgently to be solved by those skilled in the art. Summary of the Utility Model
[0004] In view of this, aiming at the deficiencies of the prior art, the utility model provides a low-power soil temperature and humidity cloud sensor, aiming to reduce the power consumption of the sensor while not affecting the normal operations such as data acquisition of the sensor.
[0005] The utility model provides a low-power soil temperature and humidity cloud sensor, including:
[0006] A sensor unit for detecting relevant parameters of the soil;
[0007] A single-chip microcomputer connected to the sensor unit;
[0008] An interrupt module, which is signal-connected to the single-chip microcomputer, and a key is coupled to the interrupt module;
[0009] A clock module, which is signal-connected to the single-chip microcomputer, and is used to wake up the single-chip microcomputer regularly and can measure time;
[0010] A communication module, which is respectively connected to the single-chip microcomputer and the server, and is used to upload the data collected by the sensor unit to the server;
[0011] A power supply connected to the single-chip microcomputer and the clock module;
[0012] A first control unit, through which the sensor unit is connected to the power supply;
[0013] A second control unit, through which the communication module is connected to the power supply;
[0014] The single-chip microcomputer can perform data interaction with the server through the communication module;
[0015] The single-chip microcomputer is used to receive and analyze the data transmitted by the sensor unit, and switch to the sleep mode, data acquisition mode or data interaction mode according to the data;
[0016] Wherein, when the single-chip microcomputer is in the sleep mode, the single-chip microcomputer adjusts the first control unit and the second control unit to cut off the power supply of the communication module and the sensor unit;
[0017] When the single-chip microcomputer is in the data acquisition mode, the single-chip microcomputer adjusts the first control unit and the second control unit to power on the sensor unit by the power supply and cut off the power supply of the communication module;
[0018] When the single-chip microcomputer is in the data interaction mode, the single-chip microcomputer adjusts the first control unit and the second control unit to power on the communication module and the sensor unit by the power supply, enable the sensor unit to perform data acquisition, and the single-chip microcomputer performs data interaction with the server. Further, the sensor unit includes a moisture acquisition module and a temperature acquisition module.
[0019] Further, the clock module is an RTC real-time clock or an internal sleep timer.
[0020] Further, the communication module is a communication module group, and the communication module group is connected to a mobile base station.
[0021] Further, the power supply includes a capacitor; and / or, the power supply includes a power generation component.
[0022] Further, the power supply includes a battery pack, and the battery pack includes multiple lithium argon batteries connected in parallel.
[0023] Further, the first control unit and the second control unit are switches.
[0024] Further, the first control unit and the second control unit are field effect transistors.
[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows. The present utility model is provided with a clock module and an interrupt module. The clock module performs timing. The interrupt module is triggered by a key to send an interrupt signal, wake up the single-chip microcomputer regularly, and trigger data upload. Subsequently, according to the data received and analyzed by the single-chip microcomputer, the sensor unit and the communication module are selectively activated. Obviously, compared with the way of continuously turning on the single-chip microcomputer, the sensor unit, and the communication module, in the present utility model, the single-chip microcomputer, the sensor unit, and the communication module are started at intervals, which significantly reduces the power consumption of the soil temperature and humidity cloud sensor in the present utility model. At the same time, this realizes the collection of corresponding data and ensures the normal operation of the soil temperature and humidity cloud sensor. Moreover, after analyzing the data transmitted by the sensor unit, the single-chip microcomputer in the present utility model selectively turns on the communication module and the sensor unit, and switches its own operating state, which further reduces the power consumption of the soil temperature and humidity cloud sensor in the present utility model. Description of the Drawings
[0026] Figure 1 It is a schematic diagram of the composition of the low-power soil temperature and humidity cloud sensor of the present utility model;
[0027] Figure 2 It is a schematic diagram of the operation of the low-power soil temperature and humidity cloud sensor of the present utility model;
[0028] Figure 3 It is a schematic diagram of the power input and ADC output interfaces in the low-power soil temperature and humidity cloud sensor of the present utility model;
[0029] Figure 4 It is a schematic diagram of the soil temperature and humidity acquisition circuit;
[0030] Figure 5 It is a schematic diagram of the structure of the power input interface and the LED status indicator;
[0031] Figure 6 It is a schematic diagram of the temperature and humidity ADC acquisition interface;
[0032] Figure 7 It is a schematic diagram of the reference voltage and working voltage acquisition;
[0033] Figure 8 It is a schematic diagram of the single-chip microcomputer;
[0034] Figure 9 It is a schematic diagram of the IO port level conversion;
[0035] Figure 10 It is a schematic diagram of the download / configuration / key interface;
[0036] Figure 11 It is a schematic diagram of the communication module;
[0037] Figure 12 It is the SIM card interface. Specific embodiments
[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0039] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.
[0040] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.
[0041] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0042] Refer to Figures 1 to 12As shown in the figure, this embodiment provides a low-power soil temperature and humidity cloud sensor, including: a sensor unit for detecting relevant parameters of the soil; a single-chip microcomputer connected to the sensor unit; an interrupt module signal-connected to the single-chip microcomputer, and a button is coupled to the interrupt module (coupled connection means that when the button outside the sensor is pressed, it can trigger the interrupt module to send an interrupt signal); a clock module signal-connected to the single-chip microcomputer, the clock module is used to wake up the single-chip microcomputer regularly and can measure time; a communication module connected to the single-chip microcomputer and the server respectively, the communication module is used to upload the data collected by the sensor unit to the server; a power supply connected to the single-chip microcomputer and the clock module; a first control unit, the sensor unit is connected to the power supply through the first control unit; a second control unit, the communication module is connected to the power supply through the second control unit.
[0043] The single-chip microcomputer can perform data interaction with the server through the communication module; the single-chip microcomputer is used to receive and analyze the data transmitted by the sensor unit, and switch to the sleep mode, data acquisition mode or data interaction mode according to the data; among them, when the single-chip microcomputer is in the sleep mode, the single-chip microcomputer adjusts the first control unit and the second control unit to cut off the power supply of the communication module and the sensor unit; when the single-chip microcomputer is in the data acquisition mode, the single-chip microcomputer adjusts the first control unit and the second control unit to make the power supply energize the sensor unit and cut off the communication module; when the single-chip microcomputer is in the data interaction mode, the single-chip microcomputer adjusts the first control unit and the second control unit to make the power supply energize the communication module and the sensor unit, make the sensor unit perform data acquisition, and the single-chip microcomputer performs data interaction with the server. Further, the sensor unit includes a moisture acquisition module and a temperature acquisition module.
[0044] By setting the clock module and the interrupt module in the present invention, the clock module measures time. After the measured time reaches the set time, pressing the external button triggers the interrupt module to send an interrupt signal to wake up the single-chip microcomputer regularly. Subsequently, according to the data analyzed by the single-chip microcomputer, the sensor unit and the communication module are selectively started. Obviously, compared with the way of continuously turning on the single-chip microcomputer, the sensor unit and the communication module, in the present invention, the single-chip microcomputer, the sensor unit and the communication module are started intermittently, which significantly reduces the power consumption of the soil temperature and humidity cloud sensor in the present invention. At the same time, this realizes the acquisition of corresponding data and ensures the normal operation of the soil temperature and humidity cloud sensor; moreover, after analyzing the data transmitted by the sensor unit, the single-chip microcomputer in the present invention selectively turns on the communication module and the sensor unit, and switches its own operating state, which further reduces the power consumption of the soil temperature and humidity cloud sensor in the present invention.
[0045] Among them, the server can specifically be a cloud server. The signal output by the sensor unit is an analog signal, and the analog signal can be quickly converted and processed through the ADC conversion unit inside the single-chip microcomputer. The energy module provides energy supply for the entire device of the low-power soil temperature and humidity cloud sensor in the present utility model.
[0046] The low-power soil temperature and humidity cloud sensor in the present utility model has three working modes: data interaction mode, data acquisition mode, and sleep mode; it should be noted that the three working modes of the low-power soil temperature and humidity cloud sensor mentioned here correspond to the three working modes of the single-chip microcomputer, that is, when the low-power soil temperature and humidity cloud sensor in the present utility model is in the sleep mode, the single-chip microcomputer is in the sleep mode; when the low-power soil temperature and humidity cloud sensor in the present utility model is in the data acquisition mode, the single-chip microcomputer is in the data acquisition mode.
[0047] Specifically, when the low-power soil temperature and humidity cloud sensor in the present utility model is in the data interaction mode, the first control unit and the second control unit are controlled by the single-chip microcomputer to be turned on. At this time, the power supply is connected to the communication module and the sensor unit, and the communication module and the sensor unit are in the normal working mode. At this time, when the low-power soil temperature and humidity cloud sensor in the present utility model can perform relevant data acquisition, the single-chip microcomputer can perform data interaction with the server through the communication module; at this time, the power consumption of the low-power soil temperature and humidity cloud sensor in the present utility model is slightly larger.
[0048] When the low-power soil temperature and humidity cloud sensor in the present utility model is in the data acquisition mode, the single-chip microcomputer disconnects the communication module by adjusting the second control unit. At this time, however, the single-chip microcomputer can obtain the corresponding value through the sensor unit, and compare this value with the value uploaded to the server last time, as well as the historical value. If the difference between this value and the value uploaded to the server last time is greater than the preset value, or, the trend is different from the last acquisition value, or, this value exceeds a certain set threshold, the single-chip microcomputer, that is, the low-power soil temperature and humidity cloud sensor in the present utility model switches to the data interaction mode; otherwise, the single-chip microcomputer, that is, the low-power soil temperature and humidity cloud sensor in the present utility model switches to the sleep mode. In this mode, the single-shot data acquisition time of the sensor unit does not exceed 100 ms, and the power consumption is low.
[0049] When the low-power soil temperature and humidity cloud sensor in the present utility model is in the sleep mode, the single-chip microcomputer adjusts the first control unit and the second control unit to cut off the power supply of the communication module and the sensor unit, and, the single-chip microcomputer is also in the sleep mode at this time, only the clock module is in the working state, and the low-power soil temperature and humidity cloud sensor in the present utility model is in the sleep mode most of the time. The working current in this mode is small, generally less than 5 μA.
[0050] Specifically, the sensor unit in the present utility model may specifically include a moisture acquisition module and a temperature acquisition module. However, the sensor unit is not limited to the above modules. According to the working conditions, the types and quantities of data acquisition modules in the sensor unit can also be adjusted. The single-chip microcomputer can specifically be an STC8h8K64 single-chip microcomputer. However, it is not limited to the STC8h8K64 single-chip microcomputer. Other types of single-chip microcomputers can also be selected according to the working conditions and the compatibility with the low-power soil temperature and humidity cloud sensor in the present utility model. The clock module can specifically be an RTC real-time clock. However, it is not limited to the RTC real-time clock. Other clocks that can wake up the single-chip microcomputer regularly and have a timing function can also be used. The communication module is a communication module group, and the communication module group is connected to the mobile base station. The communication module group can specifically be an AI R780 communication module group, or other 4G or nb-iot communication module groups that can connect the single-chip microcomputer to the mobile base station. Moreover, the configuration information can be sent down or remote firmware upgrade can be performed on the soil temperature and humidity cloud sensor in the present utility model through the cloud server. The power supply includes capacitors; and / or, the power supply includes a power generation component. The power supply includes a battery pack, and the battery pack includes multiple lithium argon batteries connected in parallel. The lithium argon battery has the characteristic of low self-power consumption, which can not only further reduce the power consumption of the soil temperature and humidity cloud sensor in the present utility model, but also avoid the problem of weak instantaneous power supply capacity of the single lithium argon battery cell. The sensor unit can specifically be implemented through an analog circuit, thereby achieving fast power supply and fast data acquisition. The first control unit and the second control unit are switches. The first control unit and the second control unit can specifically be field effect transistors, and the power on and off of the communication module and the sensor unit are controlled through the field effect transistors.
[0051] In summary, the soil temperature and humidity cloud sensor in the present utility model reduces the overall energy consumption of the sensor by strictly controlling the energy consumption of each component, and the sensor has a small volume and is relatively convenient to install. The soil temperature and humidity cloud sensor in the present utility model can configure the data triggering method in the data acquisition mode through cloud services, so as to adapt to the applications of different low-power sensors. The data interaction mode enters through two methods: timing and sensor value determination. When the power consumption is the lowest, if an abnormality occurs in the data, it can be uploaded in real time. The soil temperature and humidity cloud sensor in the present utility model can use the frequency domain measurement method to measure the soil humidity; in the present utility model, the measurement unit is separated from the main board. The soil temperature and humidity cloud sensor in the present utility model can perform remote information configuration (the device data acquisition time, change amount, and change threshold can be configured).
[0052] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model also intends to include these modifications and variations.
Claims
1. A low-power soil temperature and humidity cloud sensor, characterized in that Including: A sensor unit for detecting relevant parameters of the soil; A single-chip microcomputer connected to the sensor unit; An interrupt module signal-connected to the single-chip microcomputer, and a key is coupled to the interrupt module; A clock module signal-connected to the single-chip microcomputer, the clock module is used to wake up the single-chip microcomputer regularly, and the clock module can keep time; A communication module connected to the single-chip microcomputer and the server respectively, and the communication module is used to upload the data collected by the sensor unit to the server; A power supply connected to the single-chip microcomputer and the clock module; A first control unit, and the sensor unit is connected to the power supply through the first control unit; A second control unit, and the communication module is connected to the power supply through the second control unit; The single-chip microcomputer can perform data interaction with the server through the communication module; The single-chip microcomputer is used to receive and analyze the data transmitted by the sensor unit, and switch to a sleep mode, a data acquisition mode or a data interaction mode according to the data; Wherein, when the single-chip microcomputer is in the sleep mode, the single-chip microcomputer adjusts the first control unit and the second control unit to cut off the power supply of the communication module and the sensor unit; When the single-chip microcomputer is in the data acquisition mode, the single-chip microcomputer adjusts the first control unit and the second control unit to power on the sensor unit by the power supply and cut off the power supply of the communication module; When the single-chip microcomputer is in the data interaction mode, the single-chip microcomputer adjusts the first control unit and the second control unit to power on the communication module and the sensor unit by the power supply, enables the sensor unit to collect data, and the single-chip microcomputer performs data interaction with the server.
2. The low-power soil temperature and humidity cloud sensor according to claim 1, characterized in that, The sensor unit includes a moisture acquisition module and a temperature acquisition module.
3. The low-power soil temperature and humidity cloud sensor according to claim 1, characterized in that, The clock module is an RTC real-time clock or an internal sleep timer of the single-chip microcomputer.
4. The low-power soil temperature and humidity cloud sensor according to claim 1, wherein The communication module is a communication module group, and the communication module group is connected to a mobile base station.
5. The low-power soil temperature and humidity cloud sensor according to claim 1, characterized in that, The power supply includes a capacitor; And / or, the power supply includes a power generation component.
6. The low-power soil temperature and humidity cloud sensor according to claim 1, characterized in that, The power supply includes a battery pack, and the battery pack includes multiple lithium argon batteries connected in parallel.
7. The low-power soil temperature and humidity cloud sensor according to claim 1, wherein The first control unit and the second control unit are switches.
8. The low-power soil temperature and humidity cloud sensor according to claim 7, characterized in that, The first control unit and the second control unit are field effect transistors.