Battery powered wireless pressure transmitter communication power saving control method and system

Abstract

The application discloses a battery-powered wireless pressure transmitter communication power-saving control method and system, relates to data processing and industrial monitoring technology, and comprises the following steps: collecting pressure data according to a set sampling period, calculating a pressure change rate and a pressure fluctuation range in a time window; obtaining a wireless communication data amount and a signal strength at a current time; constructing a power-saving control decision function according to the pressure change rate, the pressure fluctuation range, the wireless communication data amount and the signal strength; and making a work mode decision according to a specified electric control threshold value and an electric control value calculated by the electric control decision function, so as to control the work mode of the pressure transmitter. The embodiment of the application establishes a mathematical model by comprehensively considering factors such as the pressure change rate, the pressure fluctuation range, the wireless communication data amount and the signal strength, dynamically adjusts the work mode of the pressure transmitter, realizes efficient power saving, and prolongs the endurance time of the equipment.

Description

Technical Field

[0001] This application relates to the fields of data processing and industrial monitoring technology, and in particular to a battery-powered wireless pressure transmitter communication power-saving control method and system. Background Technology

[0002] With the rapid development of industrial automation and IoT technologies, battery-powered wireless pressure transmitters are widely used in industrial process monitoring and environmental parameter acquisition due to their advantages such as flexible deployment and no wiring required. However, due to limited battery capacity, extending the battery life of pressure transmitters has become a pressing issue. Limited by battery capacity and device size, insufficient battery life is the core bottleneck restricting their long-term stable operation.

[0003] Most existing energy-saving methods adopt simple timed sleep strategies, which do not fully consider the characteristics of pressure changes and wireless communication requirements, resulting in serious energy waste and failing to meet the requirements of long-term stable operation. Summary of the Invention

[0004] This application provides a battery-powered wireless pressure transmitter communication power-saving control method and system, which is used to establish a mathematical model, dynamically adjust the working mode of the pressure transmitter, achieve efficient power saving, and extend the equipment's battery life.

[0005] This application provides a battery-powered wireless pressure transmitter communication power-saving control method, including: Pressure data P(t) is collected according to the set sampling period Ts, and the pressure change rate is calculated. And the range of pressure fluctuations within the time window Tw; Obtain the amount of wireless communication data D(t) and the signal strength S(t) at the current moment; Based on the rate of change of pressure The power-saving control decision function is constructed based on the pressure fluctuation range, the amount of wireless communication data D(t), and the signal strength S(t). The operating mode decision is made based on the specified electronic control threshold and the electronic control value calculated by the electronic control decision function to control the operating mode of the pressure transmitter.

[0006] This application provides a battery-powered wireless pressure transmitter communication power-saving control system, including a processor and a memory. The memory stores a computer program, and when the computer program is executed by the processor, it implements the steps of the aforementioned battery-powered wireless pressure transmitter communication power-saving control method.

[0007] This application embodiment comprehensively considers factors such as pressure change rate, pressure fluctuation range, wireless communication data volume, and signal strength to establish a mathematical model, dynamically adjust the working mode of the pressure transmitter, achieve high-efficiency power saving, and extend the equipment's battery life.

[0008] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0009] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the basic process of a battery-powered wireless pressure transmitter communication power-saving control method. Detailed Implementation

[0010] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0011] This application provides a battery-powered wireless pressure transmitter communication power-saving control method, such as... Figure 1 As shown, it includes the following steps: In step S101, pressure data P(t) is collected according to the set sampling period Ts, and the pressure change rate is calculated. And the pressure fluctuation range within the time window Tw. In some embodiments, the pressure change rate is calculated. satisfy: in, The sampling period is represented by P(t), and the pressure data is represented by P(t). The pressure fluctuation range within the calculation time window Tw is: .

[0012] In step S102, the amount of wireless communication data D(t) and the signal strength S(t) at the current time are obtained; the signal strength is represented by the Received Signal Strength Indication (RSSI) value, in dBm.

[0013] In step S103, based on the pressure change rate The power-saving control decision function is constructed using the pressure fluctuation range, wireless communication data volume D(t), and signal strength S(t). In some embodiments, the constructed power-saving control decision function is: Wherein, α, β, γ, and δ are weighting coefficients, and α + β + γ + δ = 1. The values ​​of the weighting coefficients α, β, γ, and δ range from 0 to 1 and can be adjusted according to the actual application scenario. This represents the maximum amount of data in wireless communication. and These represent the maximum and minimum signal strength values, respectively.

[0014] In step S104, the working mode decision is made based on the specified electronic control threshold and the electronic control value calculated by the electronic control decision function, so as to control the working mode of the pressure transmitter.

[0015] In some embodiments, making an operating mode decision based on a specified electronic control threshold and an electronic control value calculated by an electronic control decision function includes: configuring a first electronic control threshold. Second electronic control threshold The operating mode decision is made based on the calculated electronic control value F: If F≥ The pressure transmitter is in normal operating mode, controlling the pressure transmitter to transmit data wirelessly at a high frequency in a timely manner. like ≤F< The pressure transmitter is in wake-up transition mode. The wireless communication frequency is appropriately reduced and the wireless communication protocol is optimized to reduce data transmission energy consumption.

[0016] If F < The pressure transmitter enters a low-power sleep mode, in which only the necessary wake-up detection circuit remains operational, and resumes operation when the wake-up conditions are met.

[0017] This application embodiment comprehensively considers factors such as pressure change rate, pressure fluctuation range, wireless communication data volume, and signal strength to establish a mathematical model, dynamically adjust the working mode of the pressure transmitter, achieve high-efficiency power saving, and extend the equipment's battery life.

[0018] In different operating modes, power consumption is further optimized based on real-time collected data, for example: In the normal operating mode, the operating frequency of the data processing chip is adjusted according to the pressure change rate and the amount of wireless communication data. Specifically, the operating frequency of the data processing chip is dynamically adjusted in the normal operating mode. for: in, and These are the minimum and maximum operating frequencies of the data processing chip, respectively. In low-power sleep mode, the operating current of the wake-up detection circuit is adjusted according to the remaining battery charge E(t) and ambient temperature Tenv(t): .

[0019] in, and These are the minimum and maximum battery capacity, respectively. and These are the minimum and maximum ambient temperatures, respectively. and These are the minimum and maximum values ​​of the operating current of the wake-up detection circuit, respectively.

[0020] In some embodiments, the wake-up condition in the low-power sleep mode satisfies: The pressure transmitter is woken up when |P(t)-P(t-Tawake)|>ΔPth to perform pressure data acquisition and wireless communication, where Tawake is the time interval threshold and ΔPth is the pressure change threshold.

[0021] In some embodiments, the wake-up transition mode reduces the frequency of pressure data acquisition and optimizes the wireless communication protocol.

[0022] This application also provides an implementation example of a battery-powered wireless pressure transmitter communication power-saving control method: The pressure transmitter's sampling period is set to Ts=1s, and the time window to Tw=60s; the maximum wireless communication data volume is also set. =1024 bytes; maximum signal strength =-20dBm, minimum value =-100dBm; Minimum operating frequency of the data processing chip =10MHz, maximum value =100MHz; Minimum battery capacity =0, maximum value =100%; Minimum ambient temperature =-20℃, maximum value =80℃; Minimum operating current of the wake-up detection circuit =1μA, maximum value =10μA; pressure change threshold ΔPth=0.1MPa, time interval threshold Tawake=60s; weighting coefficients of the energy-saving control decision function α=0.3, β=0.2, γ=0.3, δ=0.2; threshold =0.3, =0.7.

[0023] After the pressure transmitter starts working, it collects pressure data P(t) according to the sampling period Ts and calculates the pressure change rate. and pressure fluctuation range Simultaneously, the amount of wireless communication data D(t) and the signal strength S(t) are acquired in real time.

[0024] Substituting the above data into the energy-saving control decision function F, the appropriate operating mode for the pressure transmitter is determined. For example, if F = 0.8 is calculated, the pressure transmitter enters normal operating mode, and the operating frequency of the data processing chip is adjusted according to the formula based on the pressure change rate and the amount of wireless communication data. f .

[0025] During operation, the remaining battery power E(t) and ambient temperature Tenv(t) are continuously monitored. In low-power sleep mode, the operating current Iawake of the wake-up detection circuit is adjusted according to the corresponding formula to achieve further power consumption optimization.

[0026] When the wake-up conditions are met, the pressure transmitter wakes up from the low-power sleep mode and enters the normal operation mode or wake-up transition mode to continue pressure data acquisition and wireless communication.

[0027] Compared to the traditional method that uses a fixed 10-minute sleep strategy, this example uses dynamic mode switching and power consumption optimization algorithms, resulting in a battery life comparison. Under the power supply conditions of a 3.6V / 2000mAh lithium battery: the battery life of this invention is approximately 153.6 × 2000 ≈ 480 hours (average power consumption 15mW) compared to 6.83.6 × 2000 ≈ 1058 hours (average power consumption 6.8mW), as shown in the table below: Static pressure monitoring (fluctuation <5%) 12.5 3.2 74% Dynamic pressure monitoring (fluctuation 20%) 28.3 11.7 58.7% Sudden stress changes 45.6 22.4 50.9% The method described in this application establishes a mathematical model incorporating multiple factors such as pressure change rate, pressure fluctuation range, wireless communication data volume, and signal strength, thereby achieving precise dynamic control of the operating mode of a battery-powered wireless communication pressure transmitter. Compared to traditional power-saving methods, this method can more fully utilize the pressure change patterns and wireless communication characteristics, effectively reducing device power consumption and extending the battery life of the wireless communication pressure transmitter, thus possessing significant practical application value and economic benefits.

[0028] This application also proposes a battery-powered wireless pressure transmitter communication power-saving control system, including a processor and a memory. The memory stores a computer program, and when the computer program is executed by the processor, it implements the steps of the aforementioned battery-powered wireless pressure transmitter communication power-saving control method.

[0029] It should be noted that, in the embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0030] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0031] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0032] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the protection scope of this application.

Claims

1. A power-saving control method for communication of a battery-powered wireless pressure transmitter, characterized in that, include: Pressure data P(t) is collected according to the set sampling period Ts, and the pressure change rate is calculated. And the range of pressure fluctuations within the time window Tw; Obtain the amount of wireless communication data D(t) and the signal strength S(t) at the current moment; Based on the rate of change of pressure The power-saving control decision function is constructed based on the pressure fluctuation range, the amount of wireless communication data D(t), and the signal strength S(t). The operating mode decision is made based on the specified electronic control threshold and the electronic control value calculated by the electronic control decision function, so as to control the operating mode of the pressure transmitter. Also includes: In different operating modes, power consumption is optimized based on real-time collected data, including: The operating frequency of the data processing chip is dynamically adjusted in normal working mode as follows: in, and These are the minimum and maximum operating frequencies of the data processing chip, respectively. This represents the maximum amount of data in wireless communication. In low-power sleep mode, based on the remaining battery charge E(t) and ambient temperature... (t) Adjust the operating current of the wake-up detection circuit to: in, and These are the minimum and maximum battery capacity, respectively. and These are the minimum and maximum ambient temperatures, respectively. and These are the minimum and maximum values ​​of the operating current of the wake-up detection circuit, respectively.

2. The battery-powered wireless pressure transmitter communication power-saving control method as described in claim 1, characterized in that, Calculate the rate of change of pressure satisfy: in, The sampling period is represented by P(t), and the pressure data is represented by P(t). The pressure fluctuation range within the calculation time window Tw is: 。 3. The battery-powered wireless pressure transmitter communication power-saving control method as described in claim 2, characterized in that, The constructed energy-saving control decision function is as follows: Among them, α, β, γ, and δ are weight coefficients and α+β+γ+δ=1, This represents the maximum amount of data in wireless communication. and These represent the maximum and minimum signal strength values, respectively.

4. The battery-powered wireless pressure transmitter communication power-saving control method as described in claim 2, characterized in that, The operating mode decision is made based on the specified electronic control threshold and the electronic control value calculated by the electronic control decision function, including: Configure the first electronic control threshold Second electronic control threshold The operating mode decision is made based on the calculated electronic control value F: If F≥ The pressure transmitter is in normal operating mode; like ≤F< The pressure transmitter is in wake-up transition mode; If F < The pressure transmitter enters a low-power sleep mode.

5. The battery-powered wireless pressure transmitter communication power-saving control method as described in claim 4, characterized in that, The wake-up conditions in the low-power sleep mode are satisfied as follows: The pressure transmitter is woken up when |P(t)-P(t-Tawake)|>ΔPth to perform pressure data acquisition and wireless communication, where Tawake is the time interval threshold and ΔPth is the pressure change threshold.

6. The battery-powered wireless pressure transmitter communication power-saving control method as described in claim 4, characterized in that, In the wake-up transition mode, the frequency of pressure data acquisition is reduced.

7. A battery-powered wireless pressure transmitter communication energy-saving control system, characterized in that, It includes a processor and a memory, wherein the memory stores a computer program that, when executed by the processor, implements the steps of the battery-powered wireless pressure transmitter communication power-saving control method as described in any one of claims 1 to 6.

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