A quick way to detect if a container is empty

Abstract

The invention discloses an instrument for rapidly detecting the empty state of a container and a method thereof. The instrument comprises a detector body. The detection steps are listed as follows: step one: a contact elastic vibration excitation sound source is provided for the container; step two: the incoherent reverberation attenuation curve of the container surface sound field is extracted byusing an acceleration sensor; step three: specific algorithm processing is performed on the sound field intensity data within the reverberation time so as to enhance the recognition stability; and step four: multiple times of experiments are performed for different types of containers and different transmit-receive positions and sound source frequency so as to determine the work parameters of thesystem. The customs clearance efficiency can be enhanced and the detection process is not influenced by weather, light or other natural conditions so that time and labor consumption for manually opening the container for checking and inspection can be omitted, the potential hidden trouble of corruption and unintentional operation error of manual operation can also be avoided and the operation effectiveness can be greatly enhanced.

Description

technical field [0001] The invention relates to the field of container detection, in particular to a method for quickly detecting whether a container is empty. Background technique [0002] Since 2008, the General Administration of Customs has promulgated a number of laws and regulations to regulate the management and establishment of customs supervision places, special supervision areas and bonded supervision places. As closed supervision areas such as highway ports, docks, stations and bonded parks, It is already a standard configuration requirement to configure the channel bayonet for automatic inspection and release of vehicles entering and exiting the site. However, in the actual supervision process of the site, the supervision of empty vehicles entering and leaving the park has always been to adopt "empty vehicles / boxes entering and exiting the bayonet must open the cabinet. Doors and bayonets must have high-level cameras and searchlights that can shine into the box, m...

AI Technical Summary

Problems solved by technology

[0002] Since 2008, the General Administration of Customs has promulgated a number of laws and regulations to regulate the management and establishment of customs supervision places, special supervision areas and bonded supervision places. As closed supervision areas such as highway ports, docks, stations and bonded parks, It is already a standard configuration requirement to configure the channel bayonet for automatic inspection and release of vehicles entering and exiting the site. However, in the actual supervision process of the site, the supervision of empty vehicles entering and leaving the park has always been to adopt "empty vehicles / boxes entering and exiting the bayonet must open the cabinet. Doors and bayonets must have high-level cameras and searchlights that can shine into the box, manually intercept and check the situation inside the empty box, or conduct random deployment and control for key manual / machine inspections of empty trucks. These methods require specialized personnel at the bayonet. On-site intervention in the channel has defects such as low operating efficiency, greater influence by natural conditions such as weather and light, a large number of mechanical and ineffective inspections, and potential corruption risks. Smugglers found exploit

The efficiency of manual unpacking inspection is low; X-ray machine scanning needs to use manual image recognition to judge whether the container is empty, which is not intelligent and produces nuclear radiation, causing serious bodily harm to truck drivers and surrounding staff who pass the inspection

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