Stock taking method and system for stocking yard

Abstract

Provided is a stock taking method and system for a stocking yard. The method comprises the following steps: 1) uniformly distributing optical fiber sensors in a stocking yard plane to form an optical fiber distributed network structure; 2) emitting spectrum having stable light intensity from a light source, wherein the spectrum is transmitted to each optical fiber sensor in the optical fiber distributed network structure through optical fiber cables, and the optical fiber sensors sense changes of external sensitivity and transmit the signals back through the optical fiber cables; and 3) carrying out data processing: carrying out processing on the signals obtained through back transmission, and thus the total weight of a stock pile is obtained. The system comprises a light emission, reception and processing system, the optical fiber distributed network structure, a processing system and a stocking yard management and control component. The stock taking method and system for the stocking yard have the advantages of simple principle, convenient operation, good stability, high precision, wide application range and high efficiency and the like.

Description

technical field [0001] The invention mainly relates to the field of inventory monitoring equipment, in particular to a method and system for stocking a stockyard. Background technique [0002] As a link in the entire fuel management system, the inventory of coal fired in power plants is of great importance. People have been looking for a way to accurately obtain the amount of coal stored in power plants. [0003] In the early days, people used bulldozers to shape irregular coal piles, then measured them with a ruler to calculate the volume of the coal pile, and then multiplied it by the specific gravity of coal to obtain the amount of coal stored. This process is called "coal panning". However, this method has a large error in the measurement results. [0004] In order to accurately obtain the amount of coal stored in thermal power plants and save power generation costs, some practitioners have proposed the use of laser coal measuring devices. The system greatly improves ...

AI Technical Summary

Problems solved by technology

However, the existing laser pan coal measuring device also has the following deficiencies: 1. Low precision

In terms of calculation, although the error of the calculated volume model can be ignored, there is also a large systematic error in the estimation of the density of the measured coal pile

Since the whole system integrates all the above subsystem errors, it directly leads to the problem of low accuracy of the traditional laser pan coal device.

Therefore, many power plants found that after buying the laser coal counting instrument, they found that the accuracy of the actual counting results was far below the nominal accuracy value of some manufacturers.

2. Low reliability

The working process of the traditional laser coal panning instrument is relatively complicated, including coal pile point picking (including distance measurement, direction angle measurement, vertical angle measurement), data conversion (conversion to three-dimensional coordinates), three-dimensional modeling, volume calculation links, cumbersome The working process leads to low reliability

3. Low adaptability

The propagation of laser in the air in rain, snow, dust and smog is easily affected, which will affect the measurement of points, distances, angles, etc.

Therefore, the measurement results of the laser pan coal meter are very unreliable under the above environmental conditions, and the environmental adaptability is not high.

4. Low efficiency

The above two points will lead to the prolongation of the whole coal-panning process, which will make the working efficiency of the coal-panning instrument low.

Images