Temperature compensation ultrasonic wind speed measuring device

Abstract

The utility model relates to the technical field of wind speed measurement, and particularly discloses a temperature compensation ultrasonic wind speed measuring device, which comprises a signal acquisition module, a data processing module, a data display module and a remote monitoring module, the ultrasonic transducer and the temperature sensor are respectively used for collecting a wind speed signal and a temperature signal in an environment, the data processing module comprises a digital filter and a microprocessor, and the digital filter processes the wind speed signal through filtering so as to obtain a stable wind speed value; the wind speed and the temperature in the environment are measured through the ultrasonic transducer and the temperature sensor, and temperature compensation is added when the microprocessor calculates the wind speed, so that the wind speed and the temperature in the environment can be measured, and the wind speed and the temperature can be accurately measured. The influence of temperature on wind speed measurement is reduced, wind speeds at different temperatures can be measured in real time, and the measurement accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of wind speed measurement technology, and in particular to a temperature-compensated ultrasonic wind speed measuring device. Background Technology

[0002] Mine ventilation utilizes mechanical fans to continuously supply fresh air into the mine. This not only dilutes harmful gases released during coal mining but also provides breathing space for miners, thus ensuring safe production. With the development of intelligent mine ventilation systems and the sustainable development of the mining industry, the requirements for precise disaster prevention and intelligent decision-making and emergency control in mine disaster ventilation necessitate accurate measurement of underground airflow. Currently, most underground airflow measurements still rely on manual handheld anemometers for single-point measurements, then calculating the average wind speed at multiple points along a cross-section. Since the selection of measurement points is based on the worker's discretion, and the cross-sectional area varies across different parts of the mine roadway, the measured data is often inaccurate. Therefore, mine ventilation monitoring technology plays a crucial role in ensuring the reliability of mine ventilation.

[0003] Staff can monitor the air volume, wind speed, and their trends in each tunnel in real time using the ventilation monitoring system, and then adjust the dampers to control the wind speed based on the monitored data. However, the wind speed values ​​collected by the existing ventilation monitoring system are greatly affected by temperature, and there is a certain error between the measured value and the actual value, which fails to achieve the expected goal. Therefore, how to incorporate temperature compensation when measuring wind speed, reduce the impact of temperature on wind speed measurement, and improve the accuracy of the measurement is an urgent problem to be solved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a temperature-compensated ultrasonic anemometer, which solves the technical problem that the wind speed values ​​collected by existing ventilation detection systems are greatly affected by temperature, resulting in a certain error between the measured values ​​and the actual values, and thus failing to achieve the expected goals.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A temperature-compensated ultrasonic anemometer includes a signal acquisition module, a data processing module, a data display module, and a remote monitoring module. The signal acquisition module includes an ultrasonic transducer and a temperature sensor, which are used to acquire wind speed signals and temperature signals in the environment, respectively. The data processing module includes a digital filter and a microprocessor. The digital filter processes the wind speed signal to obtain a stable wind speed value. The microprocessor performs temperature compensation on the wind speed signal based on the temperature signal acquired by the temperature sensor.

[0007] Preferably, the data display module includes a display, which is connected to the microprocessor, and the display is an LED digital tube.

[0008] Preferably, the remote monitoring module is a PC, and the microprocessor transmits the wind speed signal to the PC in real time via the RS232 protocol.

[0009] Preferably, after the ultrasonic transducer collects the wind speed signal, it transmits it to the microprocessor via the drive circuit and the MS1030 timing chip. The MS1030 timing chip and the microprocessor communicate via SPI.

[0010] Preferably, the temperature signal collected by the temperature sensor is transmitted to the microprocessor via IIC communication.

[0011] Preferably, the ultrasonic transducer circuit includes a +5V power supply, which forms a bias circuit with GND after passing through resistors R42 (100kΩ), R47 (100kΩ) and a 22uF capacitor in parallel.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention addresses the problems of traditional ventilation detection systems, where wind speed values ​​are significantly affected by temperature, resulting in errors between measured and actual values ​​and failing to meet expected targets. It proposes a temperature-compensated ultrasonic wind speed measuring device. This device measures wind speed and temperature in the environment using an ultrasonic transducer and temperature sensor. Temperature compensation is incorporated into the microprocessor's wind speed calculation, reducing the impact of temperature on wind speed measurement. This allows for real-time measurement of wind speed at different temperatures, improving measurement accuracy. Attached Figure Description

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the principle structure of this utility model;

[0016] Figure 2 This is a circuit diagram of the ultrasonic signal processing of this utility model;

[0017] Figure 3 This is the power supply anti-interference circuit diagram of this utility model. Detailed Implementation

[0018] This application provides a temperature-compensated ultrasonic anemometer, effectively solving the problem that existing ventilation detection systems suffer from significant temperature-dependent wind speed values, resulting in errors between measured and actual values ​​and failing to meet expected targets. This invention addresses the issues of traditional ventilation detection systems' wind speed values ​​being greatly affected by temperature, leading to errors between measured and actual values ​​and failing to achieve the desired results. It proposes a temperature-compensated ultrasonic anemometer that measures wind speed and temperature in the environment using an ultrasonic transducer and temperature sensor. Temperature compensation is incorporated into the microprocessor's wind speed calculation, reducing the impact of temperature on wind speed measurement. This allows for real-time measurement of wind speed at different temperatures, improving measurement accuracy. Example

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the technical solution in this application effectively solves the technical problem that the wind speed values ​​collected by existing ventilation detection systems are greatly affected by temperature, resulting in a certain error between the measured and actual values, and failing to achieve the expected goals. The overall idea is as follows: A temperature-compensated ultrasonic wind speed measuring device includes a signal acquisition module, a data processing module, a data display module, and a remote monitoring module. The signal acquisition module includes an ultrasonic transducer and a temperature sensor, which are used to collect wind speed and temperature signals from the environment, respectively. The data processing module includes a digital filter and a microprocessor. The digital filter processes the wind speed signal to obtain a stable wind speed value. The microprocessor performs temperature compensation on the wind speed signal based on the temperature signal collected by the temperature sensor. The data display module includes a display connected to the microprocessor. The display is an LED digital tube. The remote monitoring module... The system is configured as a PC. The microprocessor transmits the wind speed signal to the PC in real time via the RS232 protocol. After the ultrasonic transducer collects the wind speed signal, it is transmitted to the microprocessor via the drive circuit and the MS1030 timing chip. The MS1030 timing chip and the microprocessor communicate via SPI. The temperature signal collected by the temperature sensor is transmitted to the microprocessor via IIC communication. The ultrasonic transducer circuit includes a +5V power supply. The +5V power supply forms a bias circuit with GND after passing through resistors R42 (100kΩ), R47 (100kΩ), and a 22uF capacitor in parallel. The parallel connection of R47 (100kΩ) and the 22uF capacitor is to prevent interference. Before the +5V power supply is connected to the circuit, a diode is first connected to prevent the +5V power supply from being reversed and damaging the electronic components in case of circuit operation errors. Then, a transient suppression diode ASCS33A is used to prevent surge phenomena.

[0020] To address the problems existing in the prior art, this utility model provides a temperature-compensated ultrasonic anemometer. This utility model addresses the issues of traditional ventilation detection systems where wind speed values ​​are significantly affected by temperature, resulting in errors between measured and actual values ​​and failing to meet expected targets. The proposed temperature-compensated ultrasonic anemometer measures wind speed and temperature in the environment using an ultrasonic transducer and temperature sensor. Temperature compensation is incorporated into the microprocessor's wind speed calculation, reducing the impact of temperature on wind speed measurement. This allows for real-time measurement of wind speed at different temperatures, improving measurement accuracy.

[0021] Working principle:

[0022] The first step involves using a signal acquisition module to collect wind speed and temperature signals from the environment via an ultrasonic transducer and a temperature sensor. The collected wind speed signal is first transmitted to the microprocessor via a drive circuit and an MS1030 timing chip. In the data processing module, digital filtering is used to filter the wind speed signal to obtain a stable wind speed value. The temperature signal collected by the temperature sensor is transmitted to the microprocessor via IIC communication. The microprocessor performs temperature compensation on the wind speed signal based on the temperature signal to reduce the influence of temperature on wind speed measurement.

[0023] The second step involves displaying the processed data on an LED digital tube for easy viewing of wind speed data by staff on-site. Simultaneously, the microprocessor transmits the wind speed signal to a PC in real-time via the RS232 protocol, enabling remote monitoring and facilitating remote acquisition of wind speed data by staff to promptly understand the measurement status.

[0024] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A temperature-compensated ultrasonic wind speed measuring device, comprising a signal acquisition module, a data processing module, a data display module and a remote monitoring module, characterized in that, The signal collecting module comprises an ultrasonic transducer and a temperature sensor, the ultrasonic transducer and the temperature sensor are respectively used for collecting wind speed signals and temperature signals in the environment, the data processing module comprises digital filtering and a microprocessor, the digital filtering is used for filtering the wind speed signals to obtain stable wind speed values, and the microprocessor is used for temperature compensation of the wind speed signals according to the temperature signals collected by the temperature sensor.

2. A temperature-compensated ultrasonic wind speed measurement device as claimed in claim 1, characterized in that The data display module comprises a display, the display is connected with the microprocessor, and the display is an LED digital tube.

3. A temperature-compensated ultrasonic wind speed measurement device as claimed in claim 1, characterized in that The remote monitoring module is a PC, and the microprocessor transmits the wind speed signals to the PC in real time through an RS232 protocol.

4. A temperature-compensated ultrasonic wind speed measurement device as claimed in claim 1, characterized in that After the ultrasonic transducer collects the wind speed signals, the wind speed signals are transmitted to the microprocessor through a driving circuit and an MS1030 timing chip, and SPI communication is used between the MS1030 timing chip and the microprocessor.

5. A temperature-compensated ultrasonic wind speed measurement device as claimed in claim 1, characterized in that The temperature signals collected by the temperature sensor are transmitted to the microprocessor through IIC communication.

6. A temperature-compensated ultrasonic wind speed measurement device as claimed in claim 1, characterized in that The ultrasonic transducer circuit comprises a +5V power supply, and the +5V power supply and GND form a bias circuit after passing through resistors R42 (100kΩ) and R47 (100kΩ) and a 22uF capacitor in parallel.

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