CN204462422U - A kind of open meteorological data collection device - Google Patents

Abstract

The utility model provides an open meteorological data acquisition device, including various intelligent meteorological sensors, a data collection control platform, a power supply unit and a terminal unit; each intelligent meteorological sensor is provided with a single-mode single-fiber bidirectional ST optical interface, the The data collection and control platform is also equipped with a single-mode single-fiber bidirectional ST optical interface, and the data transmission between each intelligent weather sensor and the data collection and control platform is realized through the optical fiber. Using embedded and optical fiber communication technology, adopting the structure of intelligent meteorological sensors, data collection control platform and terminal unit, the plug and play and automatic identification functions of meteorological sensors have been realized, and the replacement, maintenance and calibration of common meteorological observation devices have been improved. And other issues.

Description

An open meteorological data acquisition device

technical field

The utility model relates to a device of a meteorological observation instrument, in particular to a meteorological data collection technology and device with plug-and-play and flexible function expansion.

Background technique

Meteorological observation has important application value for weather forecasting, environmental monitoring, scientific research, transportation, etc. At present, the ground meteorological data acquisition system is widely used to complete the real-time automatic observation of various meteorological elements such as temperature, humidity, wind direction, wind speed, air pressure and precipitation. At present, there are many domestic and foreign manufacturers producing meteorological data acquisition systems. Such as the MAWS3 series of Finland Vaisala Company, the DZZ4 automatic weather station of Jiangsu Radio Science Research Institute Co., Ltd., etc.

The actual meteorological data acquisition system system is distributed, and its structure is shown in Figure 1. As the meteorological elements change, the electrical parameters output by the meteorological sensor also change accordingly. This change is processed through the centralized collection, linearization and calibration of the data collector with the CPU as the core to realize the conversion from the engineering quantity to the element quantity. ; The observed data in the data collector is transmitted to the computer terminal for further calculation and processing, and then displayed on the computer screen.

The meteorological data acquisition structure of the distributed system is customized. When expanding the measurement of meteorological elements, the hardware and software of the data collector must be redeveloped and developed. The function expandability is poor, and it is inconvenient to replace and maintain.

Utility model content

The purpose of the utility model is to design an open weather data acquisition device based on an intelligent weather sensor and a prescribed communication protocol, so that each input interface of the system supports plug-and-play and automatic identification of sensors, and the interfaces have versatility. In order to change the shortcomings of poor interchangeability, inconvenient replacement and maintenance of the existing meteorological data acquisition system.

The technical scheme of the utility model is: an open meteorological data acquisition device, including various intelligent meteorological sensors, a data collection control platform, a power supply unit and a terminal unit; Interface, the data collection and control platform is also provided with a single-mode single-fiber bidirectional ST optical interface, through the optical fiber to realize the data transmission between each intelligent weather sensor and the data collection and control platform.

Further, the data collection control platform is provided with embedded hardware and various communication interfaces matched with the terminal unit, and the various communication interfaces are RS-485 interface, Ethernet interface, USB interface, SD card interface; The Ethernet interface is connected to the local area network for on-site diagnosis and maintenance or access to the LAN to provide WEB service console; the USB interface supports program programming and communication with peripheral devices; the SD card interface is used for external storage SD card communication; the RS485 interface and the Ethernet interface, the two long-distance transmission interfaces, all use photoelectric conversion processing to transmit optical signals through optical fibers.

Further, the intelligent meteorological sensor includes various temperature and humidity sensors, air pressure sensors, wind sensors, cloud sensors, visibility sensors, weather phenomenon sensors, atmospheric electric field sensors, and lightning sensors with intelligent functions. It is used to automatically complete the signal detection, transformation processing, operation processing, data communication, self-inspection, self-calibration, self-compensation, and self-diagnosis functions of the measured meteorological elements. The sensor data is in the standard communication protocol format, and the connection with the data collection and control platform is realized through optical fiber. data transmission.

Furthermore, each intelligent weather sensor is also equipped with a sensitive unit, an embedded processor, a high-precision AD circuit, a real-time clock circuit, a program memory, a data memory, a sensor interface, and an indicator light.

Further, the power supply unit is composed of a storage battery, solar energy and mains power, and provides 12V DC power for each module of the system's intelligent weather sensor and data collection and control platform in a combined manner.

Further, the terminal unit is composed of a microcomputer terminal, a field diagnosis terminal and a remote communication terminal. It is used for automatic identification, automatic display, debugging and remote storage of meteorological data for intelligent meteorological data.

The beneficial effects of the utility model are: using the embedded and optical fiber communication technology, adopting the structural mode of the intelligent meteorological sensor, the data collection control platform and the terminal unit, the plug and play and automatic identification functions of the meteorological sensor are realized, and the commonly used weather sensor is improved. Observation device replacement, maintenance, calibration and other issues.

Description of drawings

Figure 1 is a block diagram of the distributed meteorological data acquisition system;

Figure 2 is a block diagram of the open meteorological data acquisition system.

Detailed ways

As shown in Figure 2, the open weather data acquisition device includes an intelligent weather sensor, a data collection and control platform, a power supply unit, and a terminal unit.

Intelligent meteorological sensors include various temperature and humidity sensors, air pressure sensors, wind sensors, cloud sensors, visibility sensors, weather phenomenon sensors, atmospheric electric field sensors, and lightning sensors with intelligent functions. It is used to automatically complete the signal detection, conversion processing, calculation processing, data communication, self-inspection, self-calibration, self-compensation, and self-diagnosis functions of the measured meteorological elements. The sensor data is in the standard communication protocol format, and the connection with the data collection and control platform is realized through optical fiber. data transmission. Each intelligent weather sensor is composed of a sensitive unit, an embedded processor, a high-precision AD circuit, a real-time clock circuit, a program memory, a data memory, a sensor interface, a single-mode single-fiber bidirectional ST optical interface, and an indicator light.

The data collection and control platform consists of a high-performance embedded processor, a high-precision clock circuit, a large-capacity program and data memory, a sensor interface, a single-mode single-fiber bidirectional ST optical interface, an RS-485 interface, an Ethernet interface, Composed of USB interface, SD card interface, monitoring circuit, indicator light, etc. The Ethernet interface is connected to the local area network for on-site diagnosis and maintenance or to access the LAN to provide a WEB service console; the USB interface supports programming of programs and communication with peripheral devices; the SD card interface is used for communication with External memory SD card communication; the RS485 interface and the Ethernet interface, the two long-distance transmission interfaces, all adopt photoelectric conversion processing to transmit optical signals through optical fibers.

The power supply unit is composed of batteries, solar energy and mains power supply. Both the data collection and control platform and the intelligent weather sensor are powered by DC 12V. The DC working voltage required by other modules in the data collection and control platform passes through the basic working voltage. Converted.

The terminal unit is composed of a microcomputer terminal, a field diagnosis terminal and a remote communication terminal. It is used for automatic identification, automatic display, debugging and remote storage of meteorological data for intelligent meteorological data. The meteorological application software runs on the microcomputer terminal, which can display and store the meteorological data, and can also receive the input of manual observation data when necessary, and carry out quality control and correction on the collected and input data, and format the data to form a conforming Messages and storage files in the format required by the meteorology can also be further communicated with the station network center.

When the system is powered on, the intelligent meteorological sensor samples the meteorological elements at a certain frequency, and after internal data quality inspection, digital processing, correction calibration and coding are performed internally, and then output to the data collection and control platform through the optical fiber serial port. With the ARM processor as the core, the information of each optical fiber port is collected in time-sharing, which can complete the network management, operation management, configuration management, clock management and other functions of the system. Users can also use the computer terminal to calibrate the sensor parameters, climate extremes and corresponding Set the acquisition parameters, such as sampling frequency, output time interval, etc.

The basic principles, main features and preferred embodiments of the present utility model have been described above. For those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, and these improvements and modifications all fall within the protection scope of the utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. an open meteorological data collection device, is characterized in that: comprise all kinds of intelligent gas image sensor, Data Collection parametric controller, power supply unit and terminal unit; Each intelligent gas image sensor is provided with single mode single fiber bi-directional ST optical interface, described Data Collection parametric controller is also provided with single mode single fiber bi-directional ST optical interface, and the data being realized each intelligent gas image sensor and Data Collection parametric controller by optical fiber are transmitted.

2. the open meteorological data collection device of one according to claim 1, it is characterized in that: the various types of communication interface that described Data Collection parametric controller is provided with embedded hardware and mates with terminal unit, described various types of communication interface is RS-485 interface, Ethernet interface, USB interface, SD card interface; Described Ethernet interface access local area network, safeguards for field diagnostic or access to LAN provides WEB service control desk; The programming of described USB interface support program and with the communicating of peripherals; Described SD card interface is used for and external storage SD cartoon letters; The interface of described RS485 interface and these two long range propagation of Ethernet interface, all adopts photoelectric conversion to be treated to light signal and passes through Optical Fiber Transmission.

3. the open meteorological data collection device of one according to claim 1, is characterized in that: described intelligent gas image sensor comprises all kinds of warm and humid sensor, baroceptor, wind sensor, cloud sensor, visibility sensor, weather phenomenon sensor, atmospheric electric field sensor, the sensor of thunder and lightning with intelligent functions.

4. the open meteorological data collection device of one according to claim 3, is characterized in that: each intelligent gas image sensor is also provided with sensing unit, flush bonding processor, high-precision AD circuit, real time clock circuit, program storage, data-carrier store, sensor interface, pilot lamp.

5. the open meteorological data collection device of one according to claim 1, it is characterized in that: described power supply unit is made up of accumulator, sun power and civil power, the intelligent gas image sensor being system by the mode of combination, each module of Data Collection parametric controller provide 12V direct supply.

6. the open meteorological data collection device of one according to claim 1, is characterized in that: described terminal unit is made up of microcomputer terminal, field diagnostic terminal and telecommunication terminal.