CN215415965U

CN215415965U - Automatic weather station remote fault detection device based on 4G-DTU wireless network

Info

Publication number: CN215415965U
Application number: CN202121718347.1U
Authority: CN
Inventors: 张凯; 陈晓; 行鸿彦; 徐伟; 杨旭
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-01-04
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a remote fault detection device of an automatic weather station based on a 4G-DTU wireless network, which comprises a fault detector host, a 4G-DTU wireless communication unit and a signal acquisition and processing unit, wherein the host machine of the fault detector comprises an industrial control all-in-one machine and a first power supply module, the first power supply module is used for supplying power to the industrial control all-in-one machine, the 4G-DTU wireless communication unit is connected with the automatic weather station data acquisition terminal, the 4G-DTU wireless communication unit can send the data acquired by the automatic weather station data acquisition terminal to the industrial personal computer, the signal acquisition and processing unit is used for acquiring output signals of the wind measuring sensor and the precipitation sensor, the collected signals are processed and converted into digital signals through A/D conversion, and the digital signals are transmitted to the fault detector host through the wireless communication unit. The utility model can carry out remote operation, monitor meteorological data in real time and carry out remote fault detection through analyzing the obtained data, and is not influenced by weather and regions.

Description

Automatic weather station remote fault detection device based on 4G-DTU wireless network

Technical Field

The utility model relates to the technical field of fault detection, in particular to a remote fault detection device for an automatic weather station based on a 4G-DTU wireless network.

Background

With the gradual development of meteorological detection technology, different industries have higher dependence on weather, so that the novel automatic weather station is more and more widely applied to weather observation, generally consists of 5 systems, namely a collector, a communication module, a sensor, a power supply system and a lightning protection system, can provide real-time multi-element data such as wind direction, wind speed, air pressure, temperature, humidity, rainfall and the like, and realizes the automatic collection, processing, storage and transmission of various meteorological elements. However, the automatic weather station completely exposed to the natural environment needs to work day and night without interruption, and an automatic detection system formed by the automatic technical equipment is affected by various factors such as instrument faults and the like during operation, so that the system operation is in a problem, and the meteorological observation data is abnormal. Therefore, it is necessary to perform fault diagnosis and inspection on the automatic weather station by using a diagnostic instrument, so as to ensure that the automatic weather station obtains complete and continuous observation data.

At present, the existing automatic meteorological station diagnostic instrument adopts on-site diagnosis and patrol, and workers operate on site in consideration of the immobility of meteorological station equipment, so that the purpose of fault diagnosis can be effectively achieved, but the existing automatic meteorological station diagnostic instrument still stays at the stage of meteorological data wired transmission and cannot carry out remote transmission diagnosis. In addition, wired transmission has the problems of complex wiring, complex operation, poor anti-interference performance and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems mentioned in the background technology and provides an automatic weather station remote fault detection device based on a 4G-DTU wireless network.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:

based on automatic meteorological station remote fault detection device of 4G-DTU wireless network, including the fault detector host computer, 4G-DTU wireless communication unit and signal acquisition processing unit, wherein, the fault detector host computer contains industry control all-in-one and first power module, first power module is used for the power supply of industry control all-in-one, 4G-DTU wireless communication unit is connected with automatic meteorological station data acquisition terminal, 4G-DTU wireless communication unit can send the data that automatic meteorological station data acquisition terminal gathered to the industry control all-in-one, signal acquisition processing unit is used for gathering anemometry sensor and precipitation sensor output signal, the signal to gathering handles AD conversion formation digital signal, and transmit to the fault detector host computer through wireless communication unit.

The further optimization scheme of the utility model is as follows:

the fault detector host further comprises a touch display screen, and the touch display screen is connected with the industrial control all-in-one machine and used for displaying data received and calculated by the industrial control all-in-one machine.

The 4G-DTU wireless communication unit comprises a CPU control module, a wireless communication module and a second power module, wherein the CPU control module is respectively connected with the wireless communication module and the second power module, the CPU control module is used for converting serial port data into IP data or converting the IP data into the serial port data, the wireless communication module is used for wirelessly transmitting the data, and the second power module is used for supplying power to the CPU control module.

The CPU control module adopts an industrial ARM9 embedded chip.

The CPU control module provides a serial communication interface, and the serial communication mode comprises RS232 and RS485 and is consistent with the interface form of the weather station.

The signal acquisition and processing unit is in communication connection with the 4G-DTU wireless communication unit, acquires wind direction and wind speed signals and rainfall sensor rainfall signals from the unmanned meteorological station wind measuring sensor under the control of the industrial control all-in-one machine, converts the voltage signals into digital signals through a single chip microcomputer in the signal acquisition and processing unit, wherein the wind direction signals are 7-path voltage signals, the wind speed signals are pulse signals, and the rainfall signals are switching signals, and are transmitted to the fault detector host through the 4G-DTU wireless communication unit through a 4G network.

The single chip microcomputer of the signal acquisition processing unit adopts STM32F103ZET6, and the single chip microcomputer comprises 5 serial ports, 8 timers, 112 general IO ports, 2 DMA controllers, 3 SPIs, 3 12-bit ADCs and 1 12-bit DAC.

The first power module and the second power module are lithium batteries.

The utility model has the following advantages:

1. the traditional detection instrument needs workers to carry out on-site connection operation, but the utility model can carry out remote operation and monitor meteorological data in real time and is not influenced by weather and regions.

2. The utility model has strong universality, is suitable for various meteorological stations of different types, has rich functions and is convenient to popularize and apply.

Drawings

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

fig. 2 is a circuit connection diagram of the signal acquisition processing unit of the present invention.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 2, the utility model relates to an automatic weather station remote fault detection instrument based on a 4G-DTU wireless network, which comprises an industrial control all-in-one machine, a liquid crystal touch display screen, a power supply module, a signal acquisition and processing unit and a wireless communication module.

As shown in FIG. 1, the 4G-DTU wireless communication unit of the utility model is connected with an automatic weather station collector and various sensors to collect weather data. The unit is specially used for wireless terminal equipment which converts serial port data into IP data or converts the IP data into the serial port data and transmits the serial port data through a wireless communication network, the hardware components of the unit comprise a CPU control module, a wireless communication module and a second power supply module, networking is rapid and flexible, the construction period is short, cost is low, and the unit is completely suitable for the networking requirements required by the utility model, wherein the CPU adopts an industrial ARM9 embedded chip and provides serial communication interfaces, including RS232, RS485 and other common serial communication modes, and the form of the serial communication interfaces is consistent with that of a meteorological station interface.

As shown in fig. 2, the signal acquisition and processing unit of the utility model is in communication connection with the wireless communication unit, acquires a wind direction and speed signal from a wind measuring sensor of the unmanned weather station and a rainfall signal from a precipitation sensor, processes data through the single chip microcomputer, converts a voltage signal into a digital signal, wherein the wind direction signal is a 7-path voltage signal, the wind speed signal is a pulse signal, and the rainfall signal is a switching signal, and sends the switching signal to the detector host through the wireless communication module via a 4G network for further fault detection of the data.

STM32F103ZET6 is adopted to signal acquisition processing unit's singlechip, it includes 5 serial ports, 8 timers, 112 general IO mouths, 2 DMA controllers (12 passageways altogether), 3 SPI, 3 individual 12 ADC, 1 individual 12 DAC, can expand in relevant function, it is economical and practical, the energy consumption is low, the port is interrupted more, abundant resources, can realize the function that will realize easily according to software programming simultaneously, can satisfy the requirement that realizes doing logical operation, more crucial is its low price, economical and practical.

The first power module and the second power module are internally provided with lithium batteries, so that the device is suitable for field fault, and the endurance of the detector is improved by selecting large-capacity batteries.

The industrial control all-in-one machine is responsible for receiving various meteorological element data from the wireless communication unit and realizing remote fault detection and positioning of the unmanned automatic meteorological station. The industrial control all-in-one machine can be composed of a data acquisition unit testing module, a sensor testing module and the like. The information flow is as follows: firstly, a user starts detection on the industrial personal computer through operation, at the moment, the industrial personal computer sends an instruction to the wireless communication module to start to collect meteorological data from a meteorological station, and sends the meteorological data to the industrial personal computer again, and the data is further analyzed to judge whether abnormity exists.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model.

Claims

1. Based on automatic weather station remote fault detection device of 4G-DTU wireless network, its characterized in that: including fault detector host computer, 4G-DTU wireless communication unit and signal acquisition processing unit, wherein, fault detector host computer contain industry control all-in-one and first power module, first power module be used for the power supply of industry control all-in-one, 4G-DTU wireless communication unit be connected with automatic meteorological station data acquisition terminal, 4G-DTU wireless communication unit can send the data that automatic meteorological station data acquisition terminal gathered to industry control all-in-one, signal acquisition processing unit be used for gathering anemometry sensor and precipitation sensor output signal, handle AD conversion formation digital signal to the signal of gathering to transmit to fault detector host computer through wireless communication unit.

2. The automatic weather station remote fault detection device based on the 4G-DTU wireless network as claimed in claim 1, wherein: the fault detector host further comprises a touch display screen, and the touch display screen is connected with the industrial control all-in-one machine and used for displaying data received and calculated by the industrial control all-in-one machine.

3. The automatic weather station remote fault detection device based on the 4G-DTU wireless network as claimed in claim 1, wherein: the 4G-DTU wireless communication unit comprises a CPU control module, a wireless communication module and a second power module, wherein the CPU control module is respectively connected with the wireless communication module and the second power module, the CPU control module is used for converting serial port data into IP data or converting the IP data into the serial port data, the wireless communication module is used for wirelessly transmitting the data, and the second power module is used for supplying power to the CPU control module.

4. The automatic weather station remote fault detection device based on the 4G-DTU wireless network as claimed in claim 3, wherein: the CPU control module adopts an industrial ARM9 embedded chip.

5. The automatic weather station remote fault detection device based on the 4G-DTU wireless network as claimed in claim 4, wherein: the CPU control module provides a serial communication interface, and the serial communication mode comprises RS232 and RS485 and is consistent with the interface form of the weather station.

6. The automatic weather station remote fault detection device based on the 4G-DTU wireless network as claimed in claim 1, wherein: the signal acquisition and processing unit is in communication connection with the 4G-DTU wireless communication unit, acquires a wind direction and wind speed signal and a rainfall sensor rainfall signal from the unmanned meteorological station wind measuring sensor under the control of the industrial control all-in-one machine, converts the voltage signals into digital signals through a single chip microcomputer in the signal acquisition and processing unit, wherein the wind direction signals are 7 paths of voltage signals, the wind speed is a pulse signal, and the rainfall signal is a switch signal, and sends the signals to the fault detector host through the 4G-DTU wireless communication unit through a 4G network.

7. The automatic weather station remote fault detection device based on the 4G-DTU wireless network as claimed in claim 6, wherein: the single chip microcomputer of the signal acquisition processing unit adopts STM32F103ZET6, and the single chip microcomputer comprises 5 serial ports, 8 timers, 112 general IO ports, 2 DMA controllers, 3 SPIs, 3 12-bit ADCs and 1 12-bit DAC.

8. The automatic weather station remote fault detection device based on the 4G-DTU wireless network as claimed in claim 3, wherein: the first power supply module and the second power supply module are lithium batteries.