A Field Calibrator for Handheld Meteorological Sensors

A meteorological sensor and on-site calibration technology, which is applied in the direction of instruments, signal transmission systems, etc., can solve the problems of inconvenient calibration of meteorological sensors, and achieve the effects of short time delay, small size and convenient operation

Inactive Publication Date: 2011-12-28
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

These have brought inconvenience to the calibration of meteorological sensors, and automatic

Method used

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  • A Field Calibrator for Handheld Meteorological Sensors
  • A Field Calibrator for Handheld Meteorological Sensors
  • A Field Calibrator for Handheld Meteorological Sensors

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0014] like figure 1 As shown, the hand-held calibrator of the present invention comprises a CC2530 wireless processor that adopts the Zigbee protocol stack as a core wireless transmission function module, an LCD display screen, a serial interface circuit and a keyboard circuit, and the specific circuit is as follows figure 2 shown.

[0015] Wireless transmission module: CC2530 wireless processor is used to complete the control function of the system and realize wireless communication and data processing functions.

[0016] Display: Use a color LCD display with 320*240 resolution, which requires 16 data bits, and the I / O port of CC2530 is limited, so choose 74HC373 for data latching. This LCD display is mainly used to display the received weather data, etc.

[0017] Serial interface circuit: using MAX232 chip, such as figure 2 As shown, the T...

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Abstract

The invention discloses a field calibrator for a hand-held meteorological sensor, which belongs to the technical field of calibrating meteorological instruments. The invention includes a wireless transmission function module using a Zigbee protocol stack processor as the core, an LCD display screen, a serial interface circuit and a keyboard circuit. The invention wirelessly receives the meteorological data sent by each sensor of the automatic weather station through the wireless transmission module, compares the serial interface circuit with the standard sensor on the detection site, and then sends a calibration command to calibrate the zero point and full scale of each weather sensor of the automatic weather station. The connection between the calibrator and the automatic weather station is avoided, and it has the characteristics of small size, easy to carry, and low power consumption.

Description

technical field [0001] The invention relates to a hand-held meteorological sensor field calibrator based on a wireless sensor network, which belongs to the technical field of meteorological instrument calibration. Background technique [0002] At present, when the sensor of the automatic weather station is calibrated, it is necessary to remove the sensor and connect the calibration equipment to realize the calibration. For analog and ordinary digital sensors, it is generally realized by adjusting the potentiometer, and the intelligent sensor also needs to use the RS232 interface or a dedicated wired communication interface to calibrate through a computer or a calibrator. These have brought inconvenience to the calibration of meteorological sensors, and automatic weather stations based on wireless sensor networks cannot use this wired method to calibrate. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hand-he...

Claims

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Application Information

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IPC IPC(8): G01W1/18G08C17/02
Inventor 唐慧强咸爱国闾军鲍磊磊李超
Owner NANJING UNIV OF INFORMATION SCI & TECH
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