Method for correcting error of telemetry rainwater condition data by general conditions

Abstract

The invention relates to a method for correcting an error of telemetry rainwater condition data by general conditions. The method is characterized by comprising an error correction method for error recognition and error data, wherein the error recognition aims at locating the error of the received data sent from a telemetry terminal at a central receiving terminal and recognizing and correcting the error. The method can greatly improve the accuracy and the reliability of the data, overcomes the disadvantages of the data of a telemetry device in application, provides powerful and reliable data security for disaster prevention and reduction and improves the disaster response ability, thereby decreasing or reducing the loss caused by disasters.

Description

technical field [0001] The invention relates to the technical fields of hydrology, flood control informatization and automatic telemetry, in particular to a method for correcting errors of telemetry rainwater regime data by using comprehensive conditions. Background technique [0002] The existing telemetry terminal data acquisition principle: [0003] 1. The front-end data acquisition sensor converts real monitoring signals such as water level and rainfall, and these monitoring signal data usually exist in the form of switching value and analog value; [0004] 2. The acquisition terminal collects the sensor signal, encodes / decodes it and converts it into data with a certain self-correcting capability, such as bcd code, bch code and other data; [0005] 3. The acquisition terminal then controls the transmission equipment to transmit the data to the center through GPRS / GSM / VHF / CDMA / PPTN / ADSL and other channels; [0006] 4. The center receiving terminal receives the transmit...

AI Technical Summary

Problems solved by technology

[0009] The shortcomings of the existing technology: the current telemetry data error correction is basically carried out on the data encoding format, the purpose is to ensure the prevention of errors and mistakes in the transmission process

The way of data encoding can only solve the validity of the data in the transmission process, but it cannot determine the errors and errors in the non-transmission process, such as: data reset errors caused by the failure of the acquisition terminal replacement, manual clearing and number setting, and differences between different telemetry terminals Signal scrambling, manual water injection detection to the sensor, signal interruption, data blockage, and errors caused by signal scrambling such as taking large numbers and negative numbers, and time ahead

These error conditions cannot be corrected at the front end of the collection. Therefore, a method for error correction of telemetry rainwater data using comprehensive conditions is proposed at the receiving terminal.

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