CN111983953A - Device and method for collecting well lid state and reducing power consumption based on NB-iot dormancy process - Google Patents
Device and method for collecting well lid state and reducing power consumption based on NB-iot dormancy process Download PDFInfo
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- CN111983953A CN111983953A CN202010808336.6A CN202010808336A CN111983953A CN 111983953 A CN111983953 A CN 111983953A CN 202010808336 A CN202010808336 A CN 202010808336A CN 111983953 A CN111983953 A CN 111983953A
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- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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Abstract
The invention discloses a device and a method for reducing power consumption based on the collection of a well lid state in an NB-iot dormancy process, wherein the device comprises an NB module, a CPU, a sensor power supply control circuit, an inclination angle sensor and a temperature and humidity sensor; the inclination angle sensor is used for monitoring the inclination state of the well cover; the temperature and humidity sensor is used for detecting the temperature and humidity state under the well cover; the CPU controls the opening and closing of the tilt angle sensor and the temperature and humidity sensor through a sensor power supply control circuit; the NB module is used for sending the state data collected by the tilt sensor and the temperature and humidity sensor to the server. According to the invention, the power supply of the sensor is controlled by designing the sensor power supply control circuit, and after the CPU reads the data of the temperature and humidity sensor and the tilt sensor, the power supplies of the temperature and humidity sensor and the tilt sensor are closed, so that the power consumption of the sensor is reduced to the maximum extent.
Description
Technical Field
The invention relates to the field of electric power, in particular to a device and a method for collecting a well lid state and reducing power consumption in an NB-iot dormancy process.
Background
Most of devices applying well lid monitoring in the current market adopt NB as wireless transmission, and sensors are used for collecting well lid states. Most of well lid detection equipment in the market reduces the power consumption in a mode that a CPU controls the sensor to be dormant. Since sensor sleep is also energy consuming, there is a reduction in the NB battery life to some extent. In the application scene of collecting the well lid state, the most effective reduction power consumption is achieved by the cooperation of software and hardware.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for reducing power consumption based on the state of a collection well lid in the dormancy process of NB-iot.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the device and the method for reducing power consumption based on the collection of the well lid state in the NB-iot dormancy process comprise an NB module, a CPU, a sensor power supply control circuit, an inclination angle sensor and a temperature and humidity sensor;
the inclination angle sensor is used for monitoring the inclination state of the well cover;
the temperature and humidity sensor is used for detecting the temperature and humidity state under the well cover;
the CPU controls the opening and closing of the tilt angle sensor and the temperature and humidity sensor through a sensor power supply control circuit;
the NB module is used for sending the state data collected by the tilt sensor and the temperature and humidity sensor to the server.
The further technical scheme is as follows: the sensor power supply control circuit comprises a resistor R2, a resistor R3, a resistor R4, a resistor R11, a resistor R15, a capacitor C6, a capacitor C7, a triode Q2 and a MOS tube T2; one end of the resistor R2 is connected with the temperature and humidity sensor, the other end of the resistor R2 is connected with the other end of the capacitor C6, one end of the capacitor C6 is connected with an emitter of a triode Q2, one end of the resistor R3 is connected with the tilt angle sensor, the other end of the resistor R3 is connected with the other end of the capacitor C6, a base of the triode Q2 is connected with the CPU, a collector of the triode Q2 is connected with one end of a resistor R11 and one end of a resistor R15, the other end of the resistor R15 is connected with one end of a capacitor C7 and a gate of the MOS transistor T2, the other end of the resistor R11 is connected with one end of the resistor R4, the other end of the capacitor C7 and a drain of the MOS transistor T2, and a source of the MOS transistor T2.
The further technical scheme is as follows: the model of the CPU is STM 32.
The further technical scheme is as follows: the NB module comprises a chip U5A, a resistor R21, a resistor R25, a resistor R26, a resistor R27, a resistor R30, a capacitor C19, a capacitor C20, a capacitor C21 and a triode Q4; one end of the capacitor C20 is connected with a power supply GND, and the other end of the capacitor C20 is connected with one end of the resistor R21 and a VBTA pin of the chip U5A; the other end of the resistor R21 is connected with a power supply VCC, the capacitor C19 and the capacitor C21 are connected in parallel with two ends of the capacitor C20, one end of the resistor R25 is connected with a TXD pin of U5A, the other end of the resistor R25 is connected with a PA3 pin of the CPU through a serial port NB _ TX, one end of the resistor R26 is connected with an RXD pin of U5A, the other end of the resistor R26 is connected with a PA2 pin of the CPU through a serial port NB _ RX, a collector of the triode Q4 is connected with a RESET pin of U5A, an emitter of the triode Q4 is connected with the power supply GND, a base of the triode Q4 is connected with one end of the resistor R27, one end of the resistor R30 is connected with one end of the resistor R27, and the other end of the resistor.
The further technical scheme is as follows: the model number of the chip U5A is BG 36.
The further technical scheme is as follows: the model of the temperature and humidity sensor is SHT 20.
The further technical scheme is as follows: the tilt sensor is of MPU6050 type.
The further technical scheme is as follows: pin SCL of the temperature and humidity sensor is connected with pin PB6 of the CPU, and pin SDA of the temperature and humidity sensor is connected with pin PB7 of the CPU.
The further technical scheme is as follows: pin SCL of the tilt sensor is connected with pin PB6 of the CPU, and pin SDA of the tilt sensor is connected with pin PB7 of the CPU.
In a second aspect, a method for reducing power consumption based on acquiring well lid status during NB-iot hibernation, the method comprising:
after the CPU controls the NB module to successfully perform network injection, the CPU sets a PD2 pin thereof to be at a high level so as to turn on power supplies of a temperature and humidity sensor and an inclination angle sensor;
reading data of a temperature and humidity sensor and a tilt angle sensor by a CPU;
after reading the data, the CPU sets the PD2 pin to be low level to turn off the power supply of the temperature and humidity sensor and the inclination angle sensor.
Compared with the prior art, the invention has the beneficial effects that: in order to ensure that the power consumption of the sensor can be reduced to the minimum under the condition that the NB equipment does not carry out data acquisition, the power supply of the sensor is controlled by designing the sensor power supply control circuit, and after the CPU reads the data of the temperature and humidity sensor and the inclination angle sensor, the power supply of the temperature and humidity sensor and the inclination angle sensor is closed, so that the power consumption of the sensor is reduced to the maximum extent.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more apparent, the following detailed description will be given of preferred embodiments.
Drawings
FIG. 1 is a diagram of hardware connections according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an embodiment of the present invention.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," some embodiments, "" an example, "" a specific example, "" or "some examples," or the like, mean 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 invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer 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, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
Example one
Referring to fig. 1, the present invention provides a device and method for reducing power consumption based on the status of a manhole cover collected in the sleep process of NB-iot, including an NB module, a CPU, a sensor power control circuit, an inclination sensor, a temperature and humidity sensor, and a lithium battery; the inclination angle sensor is used for monitoring the inclination state of the well cover; the temperature and humidity sensor is used for detecting the temperature and humidity state under the well cover; the CPU controls the opening and closing of the tilt angle sensor and the temperature and humidity sensor through a sensor power supply control circuit; the NB module is used for sending the state data collected by the inclination angle sensor and the temperature and humidity sensor to the server, and the lithium battery is used for providing electric energy. In this embodiment, the model of the CPU is STM 32. In order to ensure that the power consumption of the sensor can be reduced to the minimum under the condition that the NB equipment does not carry out data acquisition, the power supply of the sensor is controlled by designing the sensor power supply control circuit, and after the CPU reads the data of the temperature and humidity sensor and the inclination angle sensor, the power supply of the temperature and humidity sensor and the inclination angle sensor is closed, so that the power consumption of the sensor is reduced to the maximum extent.
Further, referring to fig. 2, the sensor power control circuit includes a resistor R2, a resistor R3, R4, R11, R15, a capacitor C6, a capacitor C7, a transistor Q2, and a MOS transistor T2; one end of a resistor R2 is connected with the temperature and humidity sensor, the other end of a resistor R2 is connected with the other end of a capacitor C6, one end of a capacitor C6 is connected with an emitter of a triode Q2, one end of a resistor R3 is connected with the tilt angle sensor, the other end of a resistor R3 is connected with the other end of a capacitor C6, a base of a triode Q2 is connected with a CPU, a collector of a triode Q2 is connected with one end of a resistor R11 and one end of a resistor R15, the other end of a resistor R15 is connected with one end of a capacitor C7 and a gate of an MOS transistor T42, the other end of a resistor R11 is connected with one end of a resistor R4, the other end of a capacitor C7 and a drain of the MOS transistor T2, and a source of the MOS transistor T46.
Further, referring to fig. 2, the NB module includes a chip U5A, a resistor R21, a resistor R25, a resistor R26, a resistor R27, a resistor R30, a capacitor C19, a capacitor C20, a capacitor C21, and a transistor Q4; one end of the capacitor C20 is connected with a power supply GND, and the other end of the capacitor C20 is connected with one end of the resistor R21 and a VBTA pin of the chip U5A; the other end of the resistor R21 is connected with a power supply VCC, the capacitor C19 and the capacitor C21 are connected in parallel with two ends of the capacitor C20, one end of the resistor R25 is connected with a TXD pin of U5A, the other end of the resistor R25 is connected with a PA3 pin of the CPU through a serial port NB _ TX, one end of the resistor R26 is connected with an RXD pin of U5A, the other end of the resistor R26 is connected with a PA2 pin of the CPU through a serial port NB _ RX, a collector of the triode Q4 is connected with a RESET pin of U5A, an emitter of the triode Q4 is connected with the power supply GND, a base of the triode Q4 is connected with one end of the resistor R27, one end of the resistor R30 is connected with one end of the resistor R27, and the other end of the resistor. Pin SCL of the temperature and humidity sensor is connected with pin PB6 of the CPU, and pin SDA of the temperature and humidity sensor is connected with pin PB7 of the CPU. Pin SCL of the tilt sensor is connected with pin PB6 of the CPU, and pin SDA of the tilt sensor is connected with pin PB7 of the CPU.
In this embodiment, the model of the chip U5A is BG36, the model of the temperature and humidity sensor is SHT20, and the model of the tilt sensor is MPU 6050.
Example two
For the apparatus and method for reducing power consumption based on acquiring the well lid state in the NB-iot hibernation process in the first embodiment, the present invention further provides a method for reducing power consumption based on acquiring the well lid state in the NB-iot hibernation process, including the following steps:
the first step is as follows: after the CPU controls the NB module to successfully perform network injection, the CPU sets a PD2 pin thereof to be at a high level so as to turn on power supplies of a temperature and humidity sensor and an inclination angle sensor;
the second step is that: reading data of a temperature and humidity sensor and a tilt angle sensor by a CPU;
the third step: after reading the data, the CPU sets the PD2 pin to be low level to turn off the power supply of the temperature and humidity sensor and the inclination angle sensor.
Specifically, after the CPU successfully controls the NB module to perform network injection, the CPU sets the PD2 to a high level through controlling the IO port, and turns on the power supplies of the temperature and humidity sensor and the tilt sensor. Therefore, the power supplies of the temperature and humidity sensor and the inclination angle sensor are powered on to start working, and the CPU reads data of the U3 temperature and humidity sensor and the U1 inclination angle sensor through the IIC interface SDA/SCL. After the CPU reads the sensor data, the IO port PD2 is set to low level, and both sensors U1 and U3 are turned off. Thereby achieving the effect of reducing the power consumption of the sensor. The CPU transmits the read data of the sensor to the NB module through the serial ports (NB _ TX and NB _ RX). And the NB module transmits the data to the cloud platform to complete data transmission. And when the cloud platform receives the data, the cloud platform issues an ACK command. After the NB module receives the confirmation instruction, data of the confirmation instruction are transmitted to the CPU, the CPU receives the confirmation instruction, the NB module is controlled to enter a sleep mode through the serial port, and meanwhile, the CPU also enters the sleep mode. And after the next period comes, the CPU is actively awakened. The sensor and NB modules are awakened simultaneously.
The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The device for reducing power consumption based on the acquisition of the well lid state in the NB-iot dormancy process is characterized by comprising an NB module, a CPU, a sensor power supply control circuit, an inclination angle sensor and a temperature and humidity sensor;
the inclination angle sensor is used for monitoring the inclination state of the well cover;
the temperature and humidity sensor is used for detecting the temperature and humidity state under the well cover;
the CPU controls the opening and closing of the tilt angle sensor and the temperature and humidity sensor through a sensor power supply control circuit;
the NB module is used for sending the state data collected by the tilt sensor and the temperature and humidity sensor to the server.
2. The device for reducing power consumption based on the state of the manhole cover collected in the NB-iot dormancy process of claim 1, wherein the sensor power control circuit comprises a resistor R2, a resistor R3, a resistor R4, a resistor R11, a capacitor R15, a capacitor C6, a capacitor C7, a triode Q2 and a MOS transistor T2; one end of the resistor R2 is connected with the temperature and humidity sensor, the other end of the resistor R2 is connected with the other end of the capacitor C6, one end of the capacitor C6 is connected with an emitter of a triode Q2, one end of the resistor R3 is connected with the tilt angle sensor, the other end of the resistor R3 is connected with the other end of the capacitor C6, a base of the triode Q2 is connected with the CPU, a collector of the triode Q2 is connected with one end of a resistor R11 and one end of a resistor R15, the other end of the resistor R15 is connected with one end of a capacitor C7 and a gate of the MOS transistor T2, the other end of the resistor R11 is connected with one end of the resistor R4, the other end of the capacitor C7 and a drain of the MOS transistor T2, and a source of the MOS transistor T2.
3. The device for reducing power consumption based on collection of well lid states in NB-iot dormancy process of claim 1, wherein the CPU model is STM 32.
4. The device for reducing power consumption based on acquiring the state of the manhole cover in the NB-iot dormancy process of claim 3, wherein the NB module comprises a chip U5A, a resistor R21, a resistor R25, a resistor R26, a resistor R27, a resistor R30, a capacitor C19, a capacitor C20, a capacitor C21 and a triode Q4; one end of the capacitor C20 is connected with a power supply GND, and the other end of the capacitor C20 is connected with one end of the resistor R21 and a VBTA pin of the chip U5A; the other end of the resistor R21 is connected with a power supply VCC, the capacitor C19 and the capacitor C21 are connected in parallel with two ends of the capacitor C20, one end of the resistor R25 is connected with a TXD pin of U5A, the other end of the resistor R25 is connected with a PA3 pin of the CPU through a serial port NB _ TX, one end of the resistor R26 is connected with an RXD pin of U5A, the other end of the resistor R26 is connected with a PA2 pin of the CPU through a serial port NB _ RX, a collector of the triode Q4 is connected with a RESET pin of U5A, an emitter of the triode Q4 is connected with the power supply GND, a base of the triode Q4 is connected with one end of the resistor R27, one end of the resistor R30 is connected with one end of the resistor R27, and the other end of the resistor.
5. The device for reducing power consumption based on the status of the manhole cover collected during the sleep process of the NB-iot in claim 4, wherein the chip U5A is BG 36.
6. The device for reducing power consumption based on collection of well lid states in the NB-iot dormancy process of claim 3, wherein the type of the temperature and humidity sensor is SHT 20.
7. The device for reducing power consumption based on the state of the manhole cover collected in the NB-iot dormancy process as claimed in claim 3, wherein the tilt sensor is of MPU6050 type.
8. The device for collecting the state of the manhole cover and reducing the power consumption in the sleep process of the NB-iot according to claim 6, wherein a pin SCL of the temperature and humidity sensor is connected with a pin PB6 of the CPU, and a pin SDA of the temperature and humidity sensor is connected with a pin PB7 of the CPU.
9. The device for reducing power consumption based on the status of the manhole cover collected during the hibernation of the NB-iot of claim 7, wherein a pin SCL of the tilt sensor is connected to a pin PB6 of the CPU, and a pin SDA of the tilt sensor is connected to a pin PB7 of the CPU.
10. The method for reducing power consumption based on the acquisition of the well lid state in the NB-iot dormancy process is characterized by comprising the following steps:
after the CPU controls the NB module to successfully perform network injection, the CPU sets a PD2 pin thereof to be at a high level so as to turn on power supplies of a temperature and humidity sensor and an inclination angle sensor;
reading data of a temperature and humidity sensor and a tilt angle sensor by a CPU;
after reading the data, the CPU sets the PD2 pin to be low level to turn off the power supply of the temperature and humidity sensor and the inclination angle sensor.
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| CN202010808336.6A CN111983953A (en) | 2020-08-12 | 2020-08-12 | Device and method for collecting well lid state and reducing power consumption based on NB-iot dormancy process |
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