Identification method of indoor marijuana cultivation based on relative entropy of electric power frequency distribution
A technology of frequency distribution and relative entropy, which is applied in the field of detection of abnormal power consumption of power grid users, can solve problems such as large impact and harm, difficult to find, hidden operating environment, etc., and achieve the effect of narrowing the scope of attack
Active Publication Date: 2022-05-06
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
According to incomplete statistics, more than a dozen provinces in the coastal and central regions of my country have reported cases of indoor cultivation of marijuana, and some have even formed an industrial chain of cultivation, transportation, and sales, which has a huge impact and harm
In order to avoid people's eyes and ears, indoor cultivation of marijuana is more common in rental houses, abandoned factories, suburban villas, rough houses and other vacant residential buildings in the suburbs and urban villages. The working environment is hidden and difficult to find under normal circumstances.
Method used
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Embodiment 1
[0045] Build 4m according to the above method 2 Simulate cannabis planting greenhouses and conduct experiments to obtain time-domain data of electricity consumption for 30 days in suitable spring and summer high temperature environments respectively. Please refer to Figure 4 , the general performance of the spring and summer power consumption patterns in the frequency domain: 1) In spring, there are only four start-stop combinations corresponding to the switching of the plant fill light and the fan switch (the four lights are generally turned on or off at the same time, as a device ). Due to the small power of the fan, when the supplementary light is turned on and whether the fan is switched on or off, the corresponding power consumption falls in the same interval of the frequency histogram, while other states fall in different intervals; There are 8 start-stop combinations for the three devices of the fill light. Affected by the different start and stop durations of the a...
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A user identification method for indoor marijuana cultivation based on the relative entropy of the frequency distribution of power consumption. This method obtains the electricity consumption data of a month for simulating marijuana cultivation through experiments, and converts the power consumption data into a power consumption frequency distribution curve. As a calculation "benchmark", the monthly electricity consumption data of residential users in the data set is obtained and converted into a power consumption frequency distribution curve; the relative entropy between the frequency distribution of the measured residential users and the benchmark is calculated and the threshold is set using the box diagram. When the measured user's relative entropy is less than the threshold, the user's power consumption sequence is obtained to calculate the maximum daily load variation coefficient to further determine whether the user is a marijuana grower. In this way, through this method, the residential users who are found to have abnormal electricity consumption can be located, targeted inspections can be carried out in a timely manner, and the scope of attack can be narrowed.
Description
technical field [0001] The invention belongs to the field of detection of abnormal power consumption of power grid users, and relates to the detection of abnormal power consumption of indoor marijuana planting resident users, in particular to a method for identifying indoor marijuana planting resident users based on the relative entropy of power frequency distribution. Background technique [0002] Marijuana is mainly produced in warm regions or tropical regions. It is an annual herb and is the original drug plant that is banned in China. Cannabis leaves, bracts and flowers contain a compound called tetrahydrocannabinol, which can easily lead to addiction after inhalation. Long-term smoking of marijuana can destroy a person's body and will. Affected by the legalization of marijuana in European and American countries, in recent years, there have been frequent illegal indoor cultivation of marijuana in my country, which has become a new trend in drug crimes and seriously endan...
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IPC IPC(8): G06F30/20G06F17/18G06Q50/06
CPCG06F30/20G06F17/18G06Q50/06
Inventor 苏盛毛源军殷涛张傲刘康郑应俊翟中祥李文松赖志强
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY