CN117574938A - Container number recognition system - Google Patents

Container number recognition system Download PDF

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Publication number
CN117574938A
CN117574938A CN202311585001.2A CN202311585001A CN117574938A CN 117574938 A CN117574938 A CN 117574938A CN 202311585001 A CN202311585001 A CN 202311585001A CN 117574938 A CN117574938 A CN 117574938A
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China
Prior art keywords
container
vehicle
radio frequency
container number
sub
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CN202311585001.2A
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Chinese (zh)
Inventor
陈秀珠
张金龙
张兴军
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Beijing Yilian Technology Co ltd
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Beijing Yilian Technology Co ltd
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Priority to CN202311585001.2A priority Critical patent/CN117574938A/en
Publication of CN117574938A publication Critical patent/CN117574938A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10118—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the sensing being preceded by at least one preliminary step
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
    • G06K7/10415—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Character Discrimination (AREA)

Abstract

The application provides a container number identification system, the system includes infrared correlation group, at least one radio frequency card reader, at least two optical cameras and a processor configured to: when the detection signals are received, a first identification trigger signal and a second identification trigger signal are generated, the first identification trigger signal is sent to the at least one radio frequency card reader so as to control the at least one radio frequency card reader to read a first container number stored by a radio frequency tag on a container assembled by a vehicle, the second identification trigger signal is sent to the at least two optical cameras so as to control the at least two optical cameras to shoot images of the side face of a container assembled by the vehicle and sprayed with the container number, the second container number is obtained through identification, and the container number verification is carried out based on the first container number and the second container number so as to determine the processing mode of the radio frequency tag on the container assembled by the vehicle according to the container number verification result. The accuracy of container number discernment has been improved through this application.

Description

Container number recognition system
Technical Field
The application relates to the field of containers, in particular to a container number identification system.
Background
Container number identification is an important link in the logistics industry and can help logistics companies, customs, maritime companies and other parties to track and manage goods. Currently, container number identification mainly relies on manual operation and automated identification techniques.
With the development of technology, the RFID radio frequency tag technology is also gradually applied to container number identification. Although RFID has the characteristics of high reading and writing speed, long reading distance, large data capacity and the like, the container has some defects which cannot be overcome in the transportation process, such as: the electronic tags are internally provided with data (box numbers) with original writing errors, and the container is always in the circulation and transportation process and cannot be modified, so that errors can be read each time, and the data read by the card reader is not the target box, the tags are damaged or fall off due to information interference before a plurality of electronic tags, so that the data cannot be read, and the power or range is not successful, and the defects result in inaccurate identification results, low identification accuracy and further influence on the actual application effect.
Disclosure of Invention
In view of the above, it is an object of the present application to provide a container number identification system that overcomes at least one of the above-mentioned drawbacks.
In a first aspect, embodiments of the present application provide a container number identification system, the system comprising: the infrared correlation group comprises an infrared emitter and an infrared receiver, and is oppositely arranged on a first side edge and a second side edge of the vehicle detection area and used for sensing whether a vehicle is driven into the vehicle detection area or not; at least one radio frequency card reader arranged on a target side of the vehicle detection area, wherein the target side is one of a first side and a second side; the at least two optical cameras are respectively arranged on the first side edge and the second side edge of the vehicle detection area; a processor configured to: when a detection signal sent by the infrared receiver and used for indicating that a vehicle enters the vehicle detection area is received, a first identification trigger signal and a second identification trigger signal are generated, the first identification trigger signal is sent to the at least one radio frequency card reader so as to control the at least one radio frequency card reader to read a first container number stored by a radio frequency tag on a container assembled by the vehicle entering the vehicle detection area, the second identification trigger signal is sent to the at least two optical cameras so as to control the at least two optical cameras to shoot an image of the side face of a container sprayed with the container number of the container assembled by the vehicle entering the vehicle detection area, a second container number is obtained by identifying the image, and a processing mode of the radio frequency tag on the container assembled by the vehicle entering the vehicle detection area is determined according to a container number verification result.
In an alternative embodiment of the present application, the system further comprises: a bayonet camera to capture a license plate image of a vehicle, wherein the processor is further configured to: and identifying license plate images shot by the bayonet cameras, determining vehicle type data of the vehicle, and checking the vehicle numbers based on the first container number and the second container number according to a box number checking mode corresponding to the determined vehicle type data.
In an alternative embodiment of the present application, the vehicle model data includes that the vehicle is equipped with a single container, and the case number verification mode includes a single case verification mode, wherein the processor is further configured to: if the first container number and the second container number are both successfully identified and the first container number and the second container number are the same, determining one of the first container number and the second container number as a final container number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle; if the first container number and the second container number are successfully identified, but the first container number and the second container number are different, determining the second container number as the final container number of the vehicle, and prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal so as to maintain the abnormal radio frequency tag; if the first container number is successfully identified but the second container number is not successfully identified, determining the first container number as the final container number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle; if the first container number is not successfully identified, prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal, so as to maintain the abnormal radio frequency tag.
In an alternative embodiment of the present application, the vehicle model data comprises that the vehicle is equipped with two containers, each container having a tag thereon, the first container number comprises a first container number combination comprising a first sub-container number of a first radio frequency tag assembled on the first container of the vehicle and a second sub-container number of a second radio frequency tag assembled on the second container of the vehicle, the second container number comprises a second container number combination comprising a third sub-container number obtained from image recognition of a container side of a container number sprayed on the first container of the vehicle and a fourth sub-container number obtained from image recognition of a container side of a container number sprayed on the second container of the vehicle, wherein the processor is further configured to: sorting the first sub-box numbers and the second sub-box numbers according to the initial letters of the character strings by using ASCII codes, and then carrying out box number combination to obtain a first box number combination; and sequencing the third sub-box number and the fourth sub-box number according to the initial letters of the character strings by using ASCII codes, and then carrying out box number combination to obtain a second box number combination.
In an alternative embodiment of the present application, the processor is further configured to: if the first case number combination and the second case number combination are both successfully identified and the first case number combination and the second case number combination are the same, determining one of the first combination container number and the second combination container number as a final case number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle, wherein the first case number combination and the second case number combination are the same, namely the first sub-case number of the first case number combination and the third sub-case number of the second case number combination are the same and the second sub-case number of the first case number combination and the fourth sub-case number of the second case number combination are the same;
If the first case number combination and the second case number combination are both successfully identified, but the first case number combination and the second case number combination are different, determining the second case number combination as a final case number of the vehicle, and prompting that an abnormal radio frequency tag exists on a container assembled by the vehicle in the vehicle detection area so as to maintain the abnormal radio frequency tag, wherein the first case number combination and the second case number combination are different and comprise at least one of the conditions that the first sub-case number of the first case number combination and the third sub-case number of the second case number combination are different and the second sub-case number of the first case number combination and the fourth sub-case number of the second case number combination are different;
if the first box number combination is successfully identified but the second box number combination is not successfully identified, determining the first box number combination as a final box number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle, wherein the failure of the second box number combination comprises at least one of failure of identification of the third sub-box number and the fourth sub-box number, failure of identification of the third sub-box number and the fourth sub-box number but failure of a preset box number arrangement rule, and failure of identification of the third sub-box number and the fourth sub-box number but non-identical box number;
If the first box number combination is not recognized successfully, prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal, so as to maintain the abnormal radio frequency tag, wherein the first box number combination is not recognized successfully and comprises at least one of the first sub-box number and the second sub-box number which are not recognized, the first sub-box number and the second sub-box number which are recognized but do not conform to a preset box number arrangement rule, and the first sub-box number and the second sub-box number which are recognized but are different.
In an alternative embodiment of the present application, the processor is further configured to: and respectively checking the first container number and the second container number to determine whether each container number accords with a preset container number arrangement rule, and identifying whether the second container number is included in a company container number summary table.
In an alternative embodiment of the present application, the container number identification system further includes a display screen, where the display screen is configured to display a processing manner of the radio frequency tag on the container assembled by the vehicle driving into the vehicle detection area by the processor according to the result of the verification of the container number.
In an optional embodiment of the present application, the container number identification system further includes a radio frequency identification server and an optical character identification server, where the radio frequency identification server sends the first container number read by the at least one radio frequency card reader to the processor, and the optical character identification server sends the images captured by the at least two optical cameras to the processor for checking the container number.
In an optional embodiment of the present application, the container number identification system further includes two gates, wherein the first gate is disposed at an exit of the vehicle detection area, so that the controlled vehicle is parked at a preset position in the vehicle detection area, so that the at least two optical cameras can capture images of a side of a container of the container assembled by the vehicle, the second gate is disposed at an entrance of the vehicle detection area, and a distance between the second gate and the first gate is not less than a furthest sensing distance of the at least one radio frequency card reader, so as to avoid that a subsequently driven vehicle is read to the container number information stored by the radio frequency tag.
In an optional embodiment of the present application, the container number identification system further includes a radio frequency protection network, wherein the radio frequency protection network is disposed on a first side and a second side of the vehicle detection area, and a height of the radio frequency protection network is not less than a height of the radio frequency card reader, so as to avoid that vehicles running on a side lane are read to the container number information stored by the radio frequency tag.
The embodiment of the application provides a container number identification system. When the infrared receiver detects that a vehicle enters a vehicle detection area, a first identification triggering signal is sent to at least one radio frequency card reader, a second identification triggering signal is sent to at least two optical cameras, radio frequency identification and optical character identification technologies are triggered, and a processing mode of determining a radio frequency tag through checking the box number based on the first container number and the second container number is adopted, so that the problem that the accuracy of identifying the whole business box number is low due to the fact that the existing radio frequency tag is abnormal and the vehicle is interfered by a follow-up or side lane is solved, and the accuracy of container identification is greatly improved.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a container number identification system according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a container number identification system provided in an embodiment of the present application;
fig. 3 is a second schematic diagram of a container number identification system according to an embodiment of the present disclosure.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, every other embodiment that a person skilled in the art would obtain without making any inventive effort is within the scope of protection of the present application.
First, application scenarios applicable to the present application will be described. The method and the device can be applied to the field of containers.
Container number identification is an important link in the logistics industry and can help logistics companies, customs, maritime companies and other parties to track and manage goods. Currently, container number identification mainly relies on manual operation and automated identification techniques.
With the development of technology, the RFID radio frequency tag technology is also gradually applied to container number identification. Although RFID has the characteristics of high reading and writing speed, long reading distance, large data capacity and the like, the container has some defects which cannot be overcome in the transportation process, such as: the electronic tags are internally provided with data (box numbers) with original writing errors, and the container is always in the circulation and transportation process and cannot be modified, so that errors can be read each time, and the data read by the card reader is not the target box, the tags are damaged or fall off due to information interference before a plurality of electronic tags, so that the data cannot be read, and the power or range is not successful, and the defects result in inaccurate identification results, low identification accuracy and further influence on the actual application effect.
The present application is directed to a container number recognition system, capable of transmitting a first recognition trigger signal to at least one radio frequency card reader and transmitting a second recognition trigger signal to at least two optical cameras when detecting that a vehicle enters a vehicle detection area through an infrared receiver, triggering radio frequency recognition and optical character recognition, performing container number verification on the obtained first container number and second container number, and determining a processing mode of a radio frequency tag on a container assembled for the vehicle entering the vehicle detection area according to a container number verification result, thereby improving accuracy of container recognition.
An embodiment of the present application provides a container number identification system, please refer to fig. 1, and fig. 1 is a schematic diagram of the container number identification system provided in the embodiment of the present application. As shown in fig. 1, a container number identification system provided in an embodiment of the present application includes an infrared correlation set 10, at least one radio frequency card reader 20, and at least two optical cameras 30.
Specifically, the infrared correlation set 10 includes an infrared emitter and an infrared receiver, which are disposed on a first side and a second side of the vehicle detection area, respectively, for sensing whether a vehicle is driving into the vehicle detection area, the infrared emitter emits infrared rays, the infrared receiver receives the infrared rays, and when the vehicle is driving into the vehicle detection area, the infrared receiver shields the infrared rays, so that the infrared receiver cannot receive the infrared rays, and at this time, the infrared receiver senses that the vehicle is driving into the vehicle detection area.
At least one radio frequency reader 20 is arranged on the target side of the vehicle detection area, the target side is one of the first side and the second side, the sensing distance of the radio frequency reader is thirty meters at the farthest, the radio frequency tag in the range can be identified, the radio frequency reader is hoisted on the target side of the vehicle detection area, the vertical height is one meter, and the reader is arranged towards the direction of a vehicle channel.
At least two optical cameras 30 are respectively arranged on the first side and the second side of the vehicle detection area, and the container side of the vehicle in the vehicle detection area is photographed by high definition, and the container side is provided with a light supplementing function.
Referring to fig. 2, fig. 2 is a flowchart of a container number identification system according to an embodiment of the present application. As shown in fig. 2, the container number identification system provided in the embodiment of the present application specifically includes:
step S100: and generating a first identification trigger signal and a second identification trigger signal when receiving a detection signal which is sent by the infrared receiver and is used for indicating that the vehicle is driven into the vehicle detection area.
In the step, the infrared rays emitted by the infrared emitter are blocked by a vehicle entering the vehicle detection area, the infrared receiver does not receive the infrared rays, at the moment, the infrared receiver sends detection signals for indicating that the vehicle enters the vehicle detection area to the processor, and a first identification trigger signal and a second identification trigger signal are generated.
Step S200: the first identification trigger signal is sent to at least one radio frequency reader to control the at least one radio frequency reader to read a first container number stored by a radio frequency tag on a vehicle-mounted container that is driven into a vehicle detection area.
Illustratively, the radio frequency tag on the vehicle-mounted container in the vehicle detection area is mounted outside the container, and is mounted by gluing or drilling, with the left and right sides centered, twenty centimeters from the top edge of the container, and each container is provided with 2 tag devices on two sides of the box. The numbers in the 2 labels are the same, and are the actual numbers of the container.
Step S300: and sending a second identification triggering signal to at least two optical cameras so as to control the at least two optical cameras to shoot images of the side face of the container body, which is driven into the container assembled by the vehicle and is sprayed with the container number, and obtaining the second container number by identifying the images.
In this case, at least two optical cameras located on the left side of the road in the vehicle traveling direction are preferentially started to operate.
At this time, at least two optical cameras take a picture of the left side of the container, and a second container number is obtained by recognizing the image.
In another case, if the left photograph of the container is not clear, the second container number cannot be detected, at least two optical cameras positioned on the right side of the road in the vehicle driving direction start to work, and at least two optical cameras positioned on the right side of the road in the vehicle driving direction are not powered at ordinary times.
At this time, at least two optical cameras take the right side photographs of the container, respectively take the right side photographs of the container, and obtain a second container number by recognizing the image.
Step S400: and checking the container numbers based on the first container number and the second container number to determine the processing mode of the radio frequency tag on the container assembled for the vehicle entering the vehicle detection area according to the result of the checking of the container numbers.
The case number arrangement rules (ISO 6346 standard) specify: container number consists of 11-bit characters: the first four digits are 4 English letters, the last seven digits are 7 digits, and the case number is checked and compared to obtain a first processing mode and a second processing mode if the 11 digits of the first container number are identical to the 11 digits of the second container number, wherein the first processing mode is used for indicating that the 11 digits of the first container number are identical to the 11 digits of the second container number, and the second processing mode is used for indicating that the 11 digits of the first container number are not identical to the 11 digits of the second container number.
And respectively carrying out self-checking on the first container number and the second container number to determine whether each container number accords with a preset container number arrangement rule, and identifying whether the second container number is included in a company container number summary list.
Here, the company container number summary table is a plurality of lines of data maintained to the system, each line corresponding to container information of one vehicle, including information of a container number, vehicle type data, a license plate number of a vehicle, a size and a color of a vehicle, and the like.
Specifically, the identification method for at least one radio frequency card reader to read the first container number stored by the radio frequency tag on the container assembled by the vehicle and driven into the vehicle detection area is RFID radio frequency identification, and the identification method for at least two optical cameras to shoot the image identification of the side surface of the container sprayed with the container number of the container assembled by the vehicle and driven into the container to obtain the second container number is OCR optical identification.
The invention solves the problems of low accuracy of identifying the whole business box number caused by high damage rate, fatigue, damage, polluted OCR identification and other factors of the existing electronic tag by combining RFID radio frequency identification and OCR optical identification technology, and greatly improves the accuracy of container identification.
Referring to fig. 3, fig. 3 is a schematic diagram of a container number identification system according to an embodiment of the present application. As shown in fig. 3, the container number identification system provided in the embodiment of the present application includes: the system comprises an infrared correlation group 10, at least one radio frequency card reader 20, at least two optical cameras 30, a bayonet camera 40, a display screen 50, a first barrier 61, a second barrier 62 and a radio frequency protection network 70.
Specifically, the bayonet camera 40 is used to capture a license plate image of a vehicle, wherein the processor is further configured to: identifying license plate images shot by the bayonet cameras, determining vehicle type data of the vehicle, and checking the vehicle numbers based on the first container number and the second container number according to a box number checking mode corresponding to the determined vehicle type data.
The license plate number recognition adopts OCR optical recognition technology, the information input source is a real-time photo shot by a bayonet camera, the RFID recognition adopts bayonet hoisting type RFID card reading antenna equipment, and the tag information of the container is read.
The vehicle type data is taken as basic data, the vehicle type data and the container number information are maintained to the system by a user when the vehicle is newly added, the vehicle type rated for loading 1 container is a single container vehicle, the vehicle type rated for loading 2 containers is a double container vehicle, and other vehicle types, such as a Mongolian vehicle, at most 4 containers and the like, are also available.
In a first embodiment, the vehicle model data comprises a vehicle equipped with a single container, and the case number verification means comprises a single case verification means, in which case the processor is configured to:
if the first container number and the second container number are successfully identified and the first container number and the second container number are the same, determining one of the first container number and the second container number as the final container number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle.
At this time, the first container number identification successfully indicates that at least one radio frequency card reader identifies the container number and accords with the container number arrangement rule, the second container number identification successfully indicates that at least two optical cameras identify the container number and accords with the container number arrangement rule, and in the company container number total table, the first container number and the second container number are identical in 11-bit characters indicating the first container number and the second container number are identical in 11-bit characters.
If the first container number and the second container number are successfully identified, but the first container number and the second container number are different, determining the second container number as the final container number of the vehicle, and prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal so as to maintain the abnormal radio frequency tag.
At this time, the first container number and the second container number are different, and the 11-bit character of the first container number and the 11-bit character of the second container number are different, so that the vehicle with the abnormal radio frequency tag can be maintained by the radio frequency tag.
If the first container number is successfully identified, but the second container number is not successfully identified, the first container number is determined to be the final container number of the vehicle, and it is determined that no abnormality exists in container number detection of the vehicle.
At this time, the fact that the second container number is not successfully identified indicates that the at least two optical cameras are not used for identifying the container number, the two container numbers identified by the at least two optical cameras are not equal, the identified container number does not accord with the container number arrangement rule, or the identified container number is in the company container number total table.
If the first container number is not successfully identified, prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal, so as to maintain the abnormal radio frequency tag.
At this time, the radio frequency tag has various conditions such as radio frequency tag loss, radio frequency tag damage, radio frequency tag pollution and the like.
The RFID server sends the first container number read by the RFID reader to the processor, the optical character recognition server sends the second container number recognized by the images shot by the at least two optical cameras to the processor so as to verify the container number, and the RFID server and the optical character recognition server are respectively provided with one for receiving all the first container numbers read by the RFID reader and all the second container numbers recognized by the optical cameras.
In a second embodiment, the vehicle type data includes that a plurality of containers are assembled on a vehicle, labels are arranged on each container, a radio frequency card reader identifies the container numbers obtained by the plurality of radio frequency labels, the container numbers are sequenced according to the initial letters of the character strings by using ASCII codes, then the container numbers are combined to obtain a first container number combination, the container numbers obtained by photographing the side faces of the plurality of containers respectively through an OCR optical camera are sequenced according to the initial letters of the character strings by using ASCII codes, then the container numbers are combined to obtain a second container number combination, and the container numbers of the final container are obtained by checking the container numbers according to the first container number combination and the second container number combination.
In an alternative embodiment of the present application, the vehicle model data includes that the vehicle is equipped with two containers, each container having a tag thereon, the first container number includes a first container number combination including a first sub-container number of a first radio frequency tag assembled on the first container of the vehicle and a second sub-container number of a second radio frequency tag assembled on the second container of the vehicle, the second container number includes a second container number combination including a third sub-container number obtained by image recognition of a container side of the container number sprayed on the first container of the vehicle and a fourth sub-container number obtained by image recognition of a container side of the container number sprayed on the second container of the vehicle.
In this case, the processor is configured to:
the first sub-box numbers and the second sub-box numbers are sequenced by using ASCII codes according to the initial letters of the character strings, then the box number combination is carried out, so that a first box number combination is obtained, and the third sub-box numbers and the fourth sub-box numbers are sequenced by using ASCII codes according to the initial letters of the character strings, then the box number combination is carried out, so that a second box number combination is obtained.
For example, if the first letter of the string of the first case number is B, B corresponds to 98 in ASCII code, the second letter of the string of the second case number is a, and a corresponds to 97, 97<98 in ASCII code, so in the first case number combination, the 11-bit character of the second case number with the first letter of the string of the first letter is a is first sub-case number in front, the 11-bit character of the first sub-case number with the first letter of the string of the first letter is a second sub-case number in back, and the second case number combination is legal.
If the first container number combination and the second container number combination are successfully identified and the first container number combination and the second container number combination are the same, determining one of the first container number combination and the second container number combination as the final container number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle.
At the moment, the first container number combination identification successfully indicates that the container numbers read by the radio frequency card reader are equal and accord with the container number arrangement rule, and the second container number combination identification successfully indicates that the optical camera identifies the container numbers and accord with the container number arrangement rule and are in the company container number summary list.
The first case number combination being identical to the second case number combination means that the first sub case number of the first case number combination is identical to the third sub case number of the second case number combination and the second sub case number of the first case number combination is identical to the fourth sub case number of the second case number combination.
If the first box number combination and the second box number combination are successfully identified, but the first box number combination and the second box number combination are different, determining the second box number combination as the final box number of the vehicle, and prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal so as to maintain the abnormal radio frequency tag.
At this time, the first case number combination and the second case number combination are different and include at least one of a first sub case number of the first case number combination and a third sub case number of the second case number combination being different and a second sub case number of the first case number combination and a fourth sub case number of the second case number combination being different.
If the first box number combination is successfully identified, but the second box number combination is not successfully identified, the first box number combination is determined to be the final box number of the vehicle, and it is determined that no abnormality exists in container number detection of the vehicle.
The second container number combination failing to identify successfully includes at least one of the third and fourth sub-container numbers failing to identify, the third and fourth sub-container numbers identifying but not conforming to a preset container number arrangement rule, the third and fourth sub-container numbers identifying but not identical, and the identified third and fourth sub-container numbers not being within a corporate container number summary table.
If the first box number combination is not successfully identified, prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal, so as to maintain the abnormal radio frequency tag.
The first box number combination failure comprises at least one of first sub box numbers and second sub box numbers which are not identified, the first sub box numbers and the second sub box numbers which are identified but do not accord with preset box number arrangement rules, and the first sub box numbers and the second sub box numbers which are identified but are not identical.
Specifically, the display screen is used for displaying the processing mode of the radio frequency tag on the container assembled by the vehicle which drives into the vehicle detection area according to the box number checking result.
The display 50 includes an LED display that gives a prompt for the handling of radio frequency tags on a container where the driver's vehicle is mounted, such as "please pass" or "tag abnormality, please repair tag during repair" for example.
The container number recognition system is provided with two banisters at the entrance and the exit of the vehicle detection area, the first banister 61 is arranged at the exit of the vehicle detection area to the vehicle of control is berthed at the preset position department in the vehicle detection area, so that at least two optical cameras can shoot the image of the box side of the container of vehicle assembly that the spraying of container number, the second banister 62 is arranged at the entrance of the vehicle detection area, the distance between second banister and the first banister is not less than the furthest sensing distance of at least one radio frequency card reader, in order to avoid the vehicle that subsequently runs to be read the box number information that the radio frequency label stores.
When the vehicle approaches to the entrance of the vehicle detection area, the second barrier is lifted, the vehicle is driven in, and the second barrier falls down to block the next vehicle from entering, so that the container number information read by the radio frequency card reader in the radio frequency tag can not interfere the vehicle driven in the vehicle detection area.
The rf protection net 70 is disposed at the first side and the second side of the vehicle detection area, and the height of the rf protection net is not less than the height of the rf reader, so as to prevent the vehicles running on the side from being read the box number information stored by the rf tag.
The embodiment of the application provides a container number recognition system, when detecting that a vehicle is driven into a vehicle detection area through an infrared receiver, a first recognition trigger signal is sent to at least one radio frequency card reader and a second recognition trigger signal is sent to at least two optical cameras, an RFID radio frequency recognition and OCR optical recognition technology is triggered, the obtained first container number and second container number are subjected to container number verification, the processing mode of a radio frequency tag on a container assembled for the vehicle driven into the vehicle detection area is determined according to a container number verification result, and the problems of high damage rate and fatigue, damage, pollution and other factors of the existing electronic tag are solved through the combination of RFID radio frequency recognition and OCR optical recognition technology, the accuracy of the whole container number recognition of the service is low, the accuracy of container recognition is improved, and a practical method for dynamically maintaining the RFID radio frequency tag storage information is provided.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device, which may be a personal computer, a server, or a network device, to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the foregoing examples are merely specific embodiments of the present application, and are not intended to limit the scope of the present application, but the present application is not limited thereto, and those skilled in the art will appreciate that while the foregoing examples are described in detail, the present application is not limited thereto. Any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope of the disclosure of the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A container number identification system, wherein the container number identification system is disposed within a vehicle detection area, comprising:
the infrared correlation group comprises an infrared emitter and an infrared receiver, and is oppositely arranged on a first side edge and a second side edge of the vehicle detection area and used for sensing whether a vehicle is driven into the vehicle detection area or not;
At least one radio frequency card reader arranged on a target side of the vehicle detection area, wherein the target side is one of a first side and a second side;
the at least two optical cameras are respectively arranged on the first side edge and the second side edge of the vehicle detection area;
a processor configured to: generating a first identification trigger signal and a second identification trigger signal when receiving a detection signal sent by the infrared receiver and used for indicating that a vehicle enters the vehicle detection area,
and transmitting the first identification trigger signal to the at least one radio frequency reader to control the at least one radio frequency reader to read a first container number stored by a radio frequency tag on a vehicle-mounted container driven into the vehicle detection area,
sending the second identification triggering signal to the at least two optical cameras so as to control the at least two optical cameras to shoot images of the side face of the container body of the container which is driven into the vehicle assembly and is sprayed with the container number, obtaining the second container number by identifying the images,
and performing a box number verification based on the first container number and the second container number to determine a processing mode of the radio frequency tag on the container assembled for the vehicle entering the vehicle detection area according to a box number verification result.
2. The container number identification system of claim 1 further comprising a bayonet camera for capturing a license plate image of a vehicle,
wherein the processor is further configured to:
and identifying license plate images shot by the bayonet cameras, determining vehicle type data of the vehicle, and checking the vehicle numbers based on the first container number and the second container number according to a box number checking mode corresponding to the determined vehicle type data.
3. The container number identification system of claim 2 wherein the vehicle model data comprises a vehicle equipped with a single container, the case number verification means comprises a single case verification means,
wherein the processor is further configured to:
if the first container number and the second container number are both successfully identified and the first container number and the second container number are the same, determining one of the first container number and the second container number as a final container number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle;
if the first container number and the second container number are successfully identified, but the first container number and the second container number are different, determining the second container number as the final container number of the vehicle, and prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal so as to maintain the abnormal radio frequency tag;
If the first container number is successfully identified but the second container number is not successfully identified, determining the first container number as the final container number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle;
if the first container number is not successfully identified, prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal, so as to maintain the abnormal radio frequency tag.
4. The container number identification system of claim 3 wherein the vehicle model data comprises a vehicle equipped with two containers each having a tag thereon, the first container number comprising a first combination of container numbers comprising a first sub-container number of a first radio frequency tag mounted on a first container of the vehicle and a second sub-container number of a second radio frequency tag mounted on a second container of the vehicle,
the second container number comprises a second container number combination, the second container number combination comprises a third sub-container number obtained by image recognition of a container side surface with the container number sprayed on a first container of the vehicle and a fourth sub-container number obtained by image recognition of a container side surface with the container number sprayed on a second container of the vehicle,
Wherein the processor is further configured to:
sorting the first sub-box numbers and the second sub-box numbers according to the initial letters of the character strings by using ASCII codes, and then carrying out box number combination to obtain a first box number combination;
and sequencing the third sub-box number and the fourth sub-box number according to the initial letters of the character strings by using ASCII codes, and then carrying out box number combination to obtain a second box number combination.
5. The container number identification system of claim 4 wherein the processor is further configured to:
if the first case number combination and the second case number combination are both successfully identified and the first case number combination and the second case number combination are the same, determining one of the first combination container number and the second combination container number as a final case number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle, wherein the first case number combination and the second case number combination are the same, namely the first sub-case number of the first case number combination and the third sub-case number of the second case number combination are the same and the second sub-case number of the first case number combination and the fourth sub-case number of the second case number combination are the same;
If the first case number combination and the second case number combination are both successfully identified, but the first case number combination and the second case number combination are different, determining the second case number combination as a final case number of the vehicle, and prompting that an abnormal radio frequency tag exists on a container assembled by the vehicle in the vehicle detection area so as to maintain the abnormal radio frequency tag, wherein the first case number combination and the second case number combination are different and comprise at least one of the conditions that the first sub-case number of the first case number combination and the third sub-case number of the second case number combination are different and the second sub-case number of the first case number combination and the fourth sub-case number of the second case number combination are different;
if the first box number combination is successfully identified but the second box number combination is not successfully identified, determining the first box number combination as a final box number of the vehicle, and determining that no abnormality exists in container number detection of the vehicle, wherein the failure of the second box number combination comprises at least one of failure of identification of the third sub-box number and the fourth sub-box number, failure of identification of the third sub-box number and the fourth sub-box number but failure of a preset box number arrangement rule, and failure of identification of the third sub-box number and the fourth sub-box number but non-identical box number;
If the first box number combination is not recognized successfully, prompting that the radio frequency tag on the container assembled by the vehicle in the vehicle detection area is abnormal, so as to maintain the abnormal radio frequency tag, wherein the first box number combination is not recognized successfully and comprises at least one of the first sub-box number and the second sub-box number which are not recognized, the first sub-box number and the second sub-box number which are recognized but do not conform to a preset box number arrangement rule, and the first sub-box number and the second sub-box number which are recognized but are different.
6. The container number identification system of claim 5 wherein the processor is further configured to:
respectively carrying out self-checking on the first container number and the second container number to determine whether each container number accords with a preset container number arrangement rule,
identifying whether the second container number is included in a corporate container number summary.
7. The container number identification system of claim 6 wherein the container number identification system further comprises a display screen,
the display screen is used for displaying the processing mode of the radio frequency tag on the container assembled by the vehicle which enters the vehicle detection area according to the box number checking result.
8. The container number identification system of claim 7 wherein the container number identification system further comprises a radio frequency identification server and an optical character identification server,
the radio frequency identification server sends the first container number read by the at least one radio frequency card reader to the processor, and the optical character identification server sends the images shot by the at least two optical cameras to the processor so as to check the container number.
9. The container number identification system of claim 8 further comprising two gates,
wherein the first barrier is arranged at the outlet of the vehicle detection area to control the vehicle to park at a preset position in the vehicle detection area, so that the at least two optical cameras can shoot images of the side face of the container sprayed with the container number of the container assembled by the vehicle,
the second barrier gate is arranged at the entrance of the vehicle detection area, and the distance between the second barrier gate and the first barrier gate is not smaller than the furthest sensing distance of the at least one radio frequency card reader so as to avoid that the following vehicles are read to the box number information stored by the radio frequency tag.
10. The container number identification system of claim 9 further comprising a radio frequency protective screen,
the radio frequency protection network is arranged on the first side edge and the second side edge of the vehicle detection area, and the height of the radio frequency protection network is not smaller than that of the radio frequency card reader so as to prevent vehicles entering a side lane from being read to the box number information stored by the radio frequency tag.
CN202311585001.2A 2023-11-24 2023-11-24 Container number recognition system Pending CN117574938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311585001.2A CN117574938A (en) 2023-11-24 2023-11-24 Container number recognition system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311585001.2A CN117574938A (en) 2023-11-24 2023-11-24 Container number recognition system

Publications (1)

Publication Number Publication Date
CN117574938A true CN117574938A (en) 2024-02-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311585001.2A Pending CN117574938A (en) 2023-11-24 2023-11-24 Container number recognition system

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