CN218524205U

CN218524205U - High-speed acquisition flowmeter based on LORA communication

Info

Publication number: CN218524205U
Application number: CN202222497048.0U
Authority: CN
Inventors: 伍正辉; 李腾飞; 康金亮
Original assignee: SHANGHAI ZHAOHUI PRESSURE APPARATUS CO Ltd
Current assignee: SHANGHAI ZHAOHUI PRESSURE APPARATUS CO Ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-02-24
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a high-speed acquisition flowmeter based on LORA communication, including control module, response module, low-power consumption module, LORA module, display module, storage module and power module, the response module includes temperature-sensing unit, static pressure induction unit and differential pressure induction unit, control module includes the CPU that the model is SIM32L471, temperature-sensing unit passes through analog-to-digital converter and is connected with CPU, static pressure induction unit and differential pressure induction unit all are connected with CPU respectively through temperature compensation subassembly; the utility model discloses mainly through the cooperation including control module, response module, low-power module, LORA module, display module, storage module and power module, make pressure data, pressure differential data and the temperature data error of response module monitoring little, SIM32L 471's CPU calculates and obtains corresponding data again, has increased data processing speed to data acquisition's precision has been improved.

Description

High-speed acquisition flowmeter based on LORA communication

Technical Field

The utility model relates to a flowmeter technical field specifically is a high-speed collection flowmeter based on LORA communication.

Background

Along with the development of society, the demand of China for crude oil is increasingly large, the yield of crude oil is continuously improved, higher and higher requirements are also put forward for the performance of measurement accuracy, real-time monitoring and the like of the crude oil, certain errors exist when a parameter metering device is adopted for flow data acquisition in the conventional crude oil, and therefore the accuracy of the measured flow data is not high, and therefore a high-speed acquisition flowmeter based on LORA communication needs to be provided to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high speed acquisition flowmeter based on LORA communication, through the cooperation including control module, response module, low-power consumption module, LORA module, display module, storage module and power module, the pressure data that makes the monitoring of response module, pressure differential data and temperature data error are little, and SIM32L 471's CPU calculates and obtains corresponding data again, has increased data processing speed to data acquisition's precision has been improved, with the problem of proposing in the solution background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-speed acquisition flowmeter based on LORA communication, includes control module, response module, low-power module, LORA module, display module, storage module and power module, the response module includes temperature-sensing unit, static pressure induction unit and differential pressure induction unit, control module includes that the model is the CPU of SIM32L471, the temperature-sensing unit passes through analog-to-digital converter and is connected with CPU, static pressure induction unit and differential pressure induction unit all are connected with CPU respectively through the temperature compensation subassembly, the low-power module includes low-power RS485, the one end of low-power RS485 is connected with and contains the moisture meter, LORA module, display module, storage module and power module all with CPU electric connection, the LORA module includes F8L10A chip.

Preferably, the temperature sensing unit includes a temperature sensor, the temperature sensor is set as a PT100 sensor, the analog-to-digital converter is set as an AD7793 converter, and unidirectional transmission is performed between the temperature sensor and the analog-to-digital converter and between the analog-to-digital converter and the CPU.

Preferably, each group of temperature compensation components comprises an NSA2862 chip and an IIC interface, the IIC interface is connected with one end of the NSA2862 chip, and the other end of the IIC interface is connected with the CPU in a bidirectional mode.

Preferably, the static pressure sensing unit comprises a static pressure sensor, the differential pressure sensing unit comprises a differential pressure sensor, and the two NSA2862 chips are respectively connected with the static pressure sensor and the differential pressure sensor in a one-way mode.

Preferably, the power supply module comprises a power manager, a lithium battery and a solar panel, and the power manager is respectively connected with the lithium battery and the solar panel in a bidirectional mode.

Preferably, the display module includes a display screen, the display screen is six interface settings, be provided with a plurality of buttons on the display screen.

Preferably, the storage module is configured as an EEPROM memory, the EEPROM memory includes a W2SQ64 chip, and the EEPROM memory is bidirectionally connected to the CPU.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses mainly through the cooperation including control module, response module, low-power consumption module, LORA module, display module, storage module and power module, make pressure data, pressure difference data and the temperature data error of response module monitoring little, SIM32L 471's CPU calculates and obtains corresponding data again, has increased data processing speed to data acquisition's precision has been improved.

2. The utility model discloses a setting of LOAR module makes data transmission distance relative ratio far away and low power dissipation, convenience of customers debugging.

Drawings

FIG. 1 is a block diagram of the system of the present invention;

fig. 2 is a circuit diagram of the power supply module of the present invention;

FIG. 3 is a circuit diagram of a control module according to the present invention;

fig. 4 is a circuit diagram of the analog-to-digital converter and the PT100 sensor of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a high-speed acquisition flowmeter based on LORA communication comprises a control module, a sensing module, a low-power module, a LORA module, a display module, a storage module and a power supply module, wherein the sensing module comprises a temperature sensing unit, a static pressure sensing unit and a differential pressure sensing unit, the control module comprises a CPU with the model of SIM32L471, as shown in figure 3, the temperature sensing unit is connected with the CPU through an analog-to-digital converter, the static pressure sensing unit and the differential pressure sensing unit are respectively connected with the CPU through temperature compensation components, the low-power module comprises a low-power RS485, one end of the low-power RS485 is connected with a water-containing instrument, the LORA module, the display module, the storage module and the power supply module are electrically connected with the CPU, the LORA module comprises an F8L10A chip, in the aspect of data transmission, the LORA module F8L10A is adopted for transmission, the data transmission time can be set through software, the setting range is 30-1000 minutes, the transmission distance is relatively long, and the power consumption is relatively small; the flowmeter is provided with special PC debugging software, so that the debugging is convenient and simple;

the temperature sensing unit comprises a temperature sensor, the temperature sensor is set as a PT100 sensor, the analog-to-digital converter is set as an AD7793 converter, unidirectional transmission is performed between the temperature sensor and the analog-to-digital converter and between the analog-to-digital converter and the CPU, and a circuit diagram of the analog-to-digital converter and the PT100 sensor is shown in FIG. 4.

Through the cooperation including control module, response module, low-power module, LORA module, display module, storage module and power module, make pressure data, pressure differential data and the temperature data error of response module monitoring little, corresponding data is obtained in SIM32L 471's CPU calculation again, has increased data processing speed to data acquisition's precision has been improved.

Each group of temperature compensation components comprises an NSA2862 chip and an IIC interface, wherein the IIC interface is connected with one end of the NSA2862 chip, and the other end of the IIC interface is connected with the CPU in a bidirectional mode.

The middle of the equipment is provided with a nozzle, and the size of the differential pressure can be adjusted through the size of the nozzle. When the nozzle is fixed, the pipeline passes through the upper part of differential pressure and static pressure data which are fed back by the flow.

The voltage signal output by the pressure sensor is converted into an IIC signal through an NSA2862 chip. And transmitted to the CPU. When a change in force is detected. The CPU obtains the pressure data through the IIC interface and obtains corresponding flow data through a calculation formula. Finally outputting hourly flow, total accumulated flow, yesterday output, pressure and temperature data and the like

In the aspect of flow calculation, a high-speed acquisition mode is adopted, and data acquisition and processing are carried out at the frequency of 200 HZ. The flowmeter is provided with special PC debugging software, and relevant parameters such as pipeline parameters, pipeline liquid information and correction coefficients can be configured.

The static pressure induction unit comprises a static pressure sensor, the differential pressure induction unit comprises a differential pressure sensor, two NSA2862 chips are respectively connected with the static pressure sensor and the differential pressure sensor in a one-way mode, the differential pressure sensor is used for measuring a sensor between two pressures, the static pressure sensor is based on atmospheric pressure or absolute vacuum, and the difference between the measured pressure and the atmospheric pressure or the absolute vacuum is compared.

As shown in fig. 2, the power supply module includes a power manager, a lithium battery and a solar cell panel, the power manager is respectively connected with the lithium battery and the solar cell panel in two ways, the solar cell panel can charge the lithium battery, and the CPU, the temperature sensor, the static pressure sensor, the differential pressure sensor and the like are powered through the lithium battery.

The display module includes the display screen, and the display screen is six interface settings, is provided with a plurality of buttons on the display screen. The display screen is divided into six interfaces, wherein the interface 1 is used for displaying differential pressure, pressure and temperature. The interface 2 is used for displaying the instantaneous liquid production amount and the accumulated liquid production amount; the interface 3 is used for displaying the instantaneous gas production and the accumulated gas production; the interface 4 is used for displaying the daily fluid production amount and making the daily fluid production amount; the interface 5 is used for displaying the gas production of today and the gas production of the making day; the interface 6 is used for displaying the water content (when the water content meter is connected, the display screen is displayed), and the screen is extinguished in normal work. After the key is pressed, the screen can be lightened, and after the setting is finished, the screen can still be extinguished. And four keys can set the sensor address. The method has the advantages of debugging functional parameters such as sensors and the like, multiple data, screen display after flow calculation, multiple functions and rich display contents.

The storage module is set to be an EEPROM (electrically erasable programmable read-only memory) which comprises a W2SQ64 chip, the EEPROM is bidirectionally connected with the CPU, and the EEPROM is provided with a 64M data storage chip for data storage.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed flowmeter of gathering based on LORA communication, includes control module, response module, low-power module, LORA module, display module, storage module and power module, its characterized in that: the sensing module comprises a temperature sensing unit, a static pressure sensing unit and a differential pressure sensing unit, the control module comprises a CPU (central processing unit) of which the model is SIM32L471, the temperature sensing unit is connected with the CPU through an analog-to-digital converter, the static pressure sensing unit and the differential pressure sensing unit are respectively connected with the CPU through temperature compensation components, the low-power module comprises a low-power RS485, one end of the low-power RS485 is connected with a water-containing instrument, the LORA module, the display module, the storage module and the power supply module are electrically connected with the CPU, and the LORA module comprises an F8L10A chip.

2. The LORA communication-based high-speed flow meter for collection according to claim 1, wherein: the temperature sensing unit comprises a temperature sensor, the temperature sensor is a PT100 sensor, the analog-to-digital converter is an AD7793 converter, and unidirectional transmission is performed between the temperature sensor and the analog-to-digital converter and between the analog-to-digital converter and the CPU.

3. The LORA communication-based high-speed collection flowmeter of claim 1, wherein: each group of temperature compensation components comprises an NSA2862 chip and an IIC interface, the IIC interface is connected with one end of the NSA2862 chip, and the other end of the IIC interface is connected with the CPU in a bidirectional mode.

4. The LORA communication-based high-speed flow meter for collection according to claim 3, wherein: the static pressure induction unit comprises a static pressure sensor, the differential pressure induction unit comprises a differential pressure sensor, and the two NSA2862 chips are respectively connected with the static pressure sensor and the differential pressure sensor in a one-way mode.

5. The LORA communication-based high-speed collection flowmeter of claim 1, wherein: the power supply module comprises a power manager, a lithium battery and a solar panel, wherein the power manager is respectively in two-way connection with the lithium battery and the solar panel.

6. The LORA communication-based high-speed flow meter for collection according to claim 1, wherein: the display module comprises a display screen, the display screen is provided with six interfaces, and the display screen is provided with a plurality of keys.

7. The LORA communication-based high-speed collection flowmeter of claim 1, wherein: the storage module is set to be an EEPROM (electrically erasable programmable read-only memory) which comprises a W2SQ64 chip and is bidirectionally connected with the CPU.