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Detection device based on multiple sensors

A detection device and sensor technology, applied in measuring devices, instruments, food testing, etc., can solve the problems of difficult and accurate quantitative detection, time-consuming, excessive pesticide residues, etc., to eliminate data duplication and errors, simple operation, and easy to carry Effect

Inactive Publication Date: 2016-12-21
成都创慧科达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of pesticides used in food, vegetables, fruits, and tea remains high in China, and the unreasonable use of these substances will inevitably lead to excessive pesticide residues in agricultural products, affecting consumers' food safety, and in severe cases will cause consumers to become sick, develop Abnormal, even directly lead to poisoning death
People are very worried about the safety of food, but the existing detection is not very convenient in actual operation, and it is not convenient to carry around and quickly detect and use. The current detection of food residue pesticides generally only detects one or two types, while Most residues cannot be detected more comprehensively, and there are potential safety hazards. It is particularly important to design a detection equipment that can be easily carried and quickly detected, as well as comprehensive and accurate.
[0003] The chemical method has many steps, takes a long time, and the types of pesticides detected at one time are few. The types of pesticides detected by the biological method are limited, and it is difficult to detect accurately and quantitatively.

Method used

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Examples

Experimental program
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Embodiment 1

[0035] Such as figure 1 , the present invention is a detection device based on multiple sensors, including a detection module, a data processing module and an analysis module; the detection module includes an organophosphorus detection module, a carbamate detection module, an organochlorine detection module and a pyrethroid detection module; the detection module is connected to the analysis module through the data processing module.

[0036] The invention is a detection device based on multiple sensors. Both the organophosphorus detection module and the carbamate detection module adopt acetylcholinesterase sensors.

Embodiment 2

[0038] Compared with Embodiment 1, this embodiment has increased technical features, which is the preparation method of the acetylcholinesterase sensor: the glassy carbon electrodes are polished on the polishing cloth with alumina powder respectively, cleaned with a large amount of twice distilled water, and the Move the glassy carbon electrode into an ultrasonic cleaner, wash it with double distilled water and absolute ethanol in sequence, and dry it; take the carboxylated multi-walled carbon nanotube solution and apply it to the surface of the treated glassy carbon electrode, and then add acetylcholinesterase , dried naturally, and then dripped with polysaccharide solution.

[0039] The invention is a detection device based on multiple sensors, and the organochlorine detection module adopts a ferrous amide silver film sensor.

[0040] The present invention is a detection device based on various sensors, and the preparation method of the ferrous silver amide film is as follow...

Embodiment 3

[0044] Compared with Embodiments 1 and 2, this embodiment also discloses that the data module also includes a data fusion unit, and its data fusion method includes the following steps:

[0045] Step 1: Send the data collected by the acetylcholinesterase sensor, the silver ferrous ammonia film sensor and the cell sensor to the data processing module, initialize the collected data to obtain the sensor support matrix, and construct the n+1 dimension between the sensors at K time Support matrix T n+1 (k);

[0046] Step 2: Calculate the n+1-dimensional support matrix T n+1 The eigenvalue λ and eigenvector a of (k) i (k);

[0047] Step 3: Normalize the weighted coefficients to get: weighted coefficients

[0048] Step 4: According to the weighting coefficient formula, the estimated value of multi-sensor fusion at time K can be obtained as:

[0049] y k = Σ i = 1 ...

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Abstract

The invention discloses a detection device based on multiple sensors, which is characterized by comprising a detection module, a data processing module and an analysis module, wherein the detection module comprises an organic phosphorus detection module, a carbamate detection module, an organic chlorine detection module and a pyrethroid detection module; and the detection module is connected with the analysis module via the data processing module. The pesticide residue detection device disclosed by the invention is convenient to carry and small in volume, and can be directly and conveniently used by people when buying vegetables; and the pesticide residue detection device is simple to operate and can detect multiple pesticide residues, the problem that the existing detection devices can only carry out single detection is solved, the detection of multiple pesticide residues is realized, and a safer detection result is obtained.

Description

technical field [0001] The invention relates to the field of food detection, in particular to a detection device based on multiple sensors. Background technique [0002] With the development of agricultural industrialization, the production of agricultural products is increasingly dependent on exogenous substances such as pesticides, antibiotics and hormones. The amount of pesticides used in food, vegetables, fruits, and tea remains high in China, and the unreasonable use of these substances will inevitably lead to excessive pesticide residues in agricultural products, affecting consumers' food safety, and in severe cases will cause consumers to become sick, develop Abnormal, and even directly lead to poisoning death. People are very worried about the safety of food, but the existing detection is not very convenient in actual operation, and it is not convenient to carry around and quickly detect and use. The current detection of food residue pesticides generally only detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/02
CPCG01N33/02G01N33/025
Inventor 李游平
Owner 成都创慧科达科技有限公司
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