Ship identification and port entry and exit (automatic) supervision system
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Chapter 1. Current Status and Existing Problems of China’s Fisheries
1.1 Status of China’s fisheries
The 2008 China Zhoushan International Ship Industry Expo•Zhedong Economic Cooperation Zone Fishing Vessel Management Senior Forum was held in the conference room of the Municipal Administrative Center. Experts from some universities and heads of fishery management departments gathered together to discuss the big plans for fishing boat management. Song Zhijun, deputy director of the Donghai District Fisheries and Fishery Port Supervision and Administration Bureau of the Ministry of Agriculture, Lin Dongyong, deputy director of the Provincial Ocean and Fisheries Bureau, and Wang Zhongzhi, deputy mayor, attended the meeting. Huang Shuolin, vice president of Shanghai Ocean University, introduced the world’s fishery resources, the basic conditions of fishing vessels, and the current status of my country’s fishing vessel management. He believes that the management of fishing vessels should be strengthened and the fishing power in the waters under my country’s jurisdiction should be reduced as soon as possible. Yu Congda, the vice president of Zhejiang Ocean University, introduced the current status of my country’s fishing license system, and suggested that the fishing license system should be strictly regulated and the intensity of various fishing operations should be scientifically regulated. Experts from the Provincial Ocean and Fishery Bureau, Ningbo, Taizhou, Wenzhou Ocean and Fishery Bureau, and Shaoxing Agriculture Bureau respectively put forward written recommendations on the management of fishing vessels.
1.2 Problems in the inspection and management of fishing vessels in fisheries
(1) There is a big gap between the period of mandatory scrapping of small fishing boats and the period of normal use. Theoretically, the determination of the former should be based on the latter. According to the “Interim Regulations”, the retirement life of these small fishing boats is 13 years, but the actual situation is that their normal service life is generally around 23 years. To elaborate), there is no need for multiple words. The greater the gap between the two, the more difficult it is to implement the Interim Provisions.
(2) The completeness of the deferred scrapping system needs to be further improved. The formulation of the deferred scrapping system has increased the inclusiveness and operability of the Interim Provisions to a certain extent, provided a buffer zone for the withdrawal of scrapped fishing boats, and made it possible to withdraw fishing boats that are difficult to scrap. Based on the quality control of the hull with reference to the renewal inspection requirements during the extension period, it is recommended to: 1. Increase the length of the extension period, such as changing the original five years to ten years; 2. Change this system Regularization: The declaration and approval procedures for deferred and scrapped fishing vessels are handled regularly every year. For example, set June and December of each year as the time to declare and go through the procedures for deferring the scrapping of fishing vessels; 3. Simplify the procedures as much as possible when possible. 4. Use RFID technology to effectively manage the identity of the vessel and the entry and exit of fishing vessels.
(3) The implementation of the fishing vessel scrapping system needs to be further strengthened. The renewal and transformation of fishing boats after their scrapping, conversion of production and conversion, and the enforcement of mandatory scrapping of fishing boats involve not only the inspection department, but also the law enforcement, fishery administration, fishery supervision and other departments. If the relevant law enforcement departments have different understanding of the “Interim Provisions” or inconsistent steps , It is easy to cause friction and internal friction in the work, and make the implementation of the “Interim Regulations” into trouble. Such as the implementation of the extended period of scrapping, the determination of scrapped objects, and the disposal of fishing boats after scrapping, etc., all departments should have a unified understanding. Recommendations: unify leadership, strengthen supervision, and carry out comprehensive and balanced development to ensure the implementation of the fishing vessel scrapping system.
Chapter 2. Introduction to RFID Technology
2.1 Overview
RFID radio frequency identification technology is a non-contact automatic identification technology realized by radio frequency communication. RFID tags have the characteristics of small size, large capacity, long life, reusable, etc., and can support fast reading and writing, non-visual recognition,Mobile recognition, Multi-target recognition, positioning and long-term tracking management. Combining RFID technology with Internet, communication and other technologies can realize the tracking and information sharing of items on a global scale. RFID technology is applied to logistics, manufacturing, public information services and other industries, which can greatly improve management and operation efficiency and reduce costs. With the continuous improvement and maturity of related technologies, the RFID industry will become an emerging high-tech industry group and a new growth point for the national economy. Therefore, research on RFID technology and development of the RFID industry will have a profound impact on improving the level of social informatization, further improving the management level of my country’s fisheries, promoting sustainable economic development, improving people’s quality of life, and enhancing public security and national defense security, and it is of strategic importance. Of great significance.
2. 2 Basic structure of RFID system
The most basic RFID system consists of three parts: hardware, software and basic data format and communication protocol. The hardware part mainly includes: tags: composed of coupling components and chips, each tag has a unique electronic code, attached to vehicles, ships, equipment to identify the target object; reader: the device to read the tag information, can be designed as a handheld Or fixed; antenna: transmit radio frequency signals between the tag and the reader.
The software part of the RFID system mainly includes two aspects: middleware application platform and application management software. The middleware platform has the following key features: 1) Provides a standardized interface compatible with different RFID readers. 2) Provide data filtering and message conversion and transmission in different formats. 3) Effectively manage and monitor RFID hardware facilities. 4) Support different application software systems’ requests for RFID data. 5) Support the original system and standardized agreement of the enterprise.
RFID technology matches the current international mainstream standards in the data format of the label, and mainly includes the following categories: EPC, UID, ISO/IEC and IP-X and other standards specified data formats.
2.3 The working principle of RFID system
In the actual application of the RFID system, the electronic tag is attached to the surface of the object to be identified, and the electronic data in the agreed format is stored in the electronic tag. The reader can read and identify the electronic data stored in the electronic tag without contact, so as to achieve the purpose of automatically identifying the object. The reader sends out a certain frequency radio frequency signal through the antenna. When the tag enters the magnetic field, it generates an induced current to obtain energy, sends out its own code and other information, which is read and decoded by the reader and sent to the host computer for related processing.
2.4 RFID characteristics
RFID radio frequency identification technology is a non-contact automatic identification technology that emerged from the 1990s. It uses radio frequency for non-contact two-way communication to automatically identify the target object and obtain related data. It has many advantages such as high accuracy, strong adaptability to the environment, strong anti-interference, and fast operation.
Chapter 3. The role of RFID system implementation
3.1 Further standardize the fishing industry and labor market
3.1.1 Promote the standardization and scientific management of fishery workers.
3.1.2 Severely crack down on the illegal employment of “rat fishermen” and regulate the order of the fishermen’s labor market.
3.2 Further implement the visa system for entry and exit of fishing vessels
In view of the current situation of wide berthing areas for fishing boats, a large number of vessels, and insufficient visa personnel at ship management stations, governments at all levels and fishery functional departments must further use their brains and brainstorm to come up with a set of practical management methods to ensure that fishing boats enter and exit the port. Implementation of the visa system. For example: whether it is possible to introduce a local area network, to adopt the visa mode of online visas and random inspections by administrative law enforcement agencies, to reduce the heavy visa workload and to facilitate fishermen’s visas; whether to use electronic tags to replace manual visas and so on.
3.3 Strengthen daily supervision and implement the investigation and remediation of hidden dangers of fishing boats
Governments and fishery functional departments at all levels are based on RFID technology and Internet technology. Through electronic tag technology, it can be used for publicity and education, ship inspection, fishing vessel entry and exit visas, crew certification, life-saving facilities, communication equipment, fire-fighting facilities and other daily supervision Work. At the same time, port management personnel can seriously carry out the investigation and management of potential safety hazards in fishing boats, fishing ports, fishing rafts, and fishing boat mooring points, so as to ensure that the safety situation of fishery production in our province remains stable.
3.4 Strengthen fishery administrative law enforcement and promote the implementation of the production management system
Via RFIDelectronic labelThe platform can enable managers to take effective measures to increase maritime and port safety supervision work, and can focus on combating unannounced, old, “three nos”, shortage of life-saving equipment, no visas, no formation at sea, and unauthorized changes to operation methods , Ships with incomplete fisherman’s certificates and unclear ship name and number identification will promote the real implementation of the fishery safety production management system, and effectively prevent and curb the occurrence of major fishery safety production accidents from the source.
Chapter 4. System Overview
Shanghai Renwei Electronic Technology Co., Ltd. is based on the third-generation RFID technology research and development of the ship identification and entry and exit automatic monitoring system is a positioning system using the most advanced RFID technology in the world. It can reflect the dynamic status of personnel and equipment in each area to the ground computer system in time (no patrol, no delay) and accurately (no error codes, no missing cards), so that managers can grasp the distribution status and movement trajectory of ships at any time , In order to facilitate more reasonable scheduling management. When severe weather such as typhoon or hail occurs, the management center can promptly notify relevant personnel to return to the flight or give reasonable suggestions. The third generation of RFID technology—REFINE RFID—also known as lean RFID.It is from the first generation of RFID that cannot accurately identify personnel information — to the second generationRFIDOnly a single read head can be more accurately identified, and then to the third generation of REFINE RFID—Lean RFID can be networked, multi-directional, and multi-read heads (more than two, a single subnet, that is, up to hundreds, the entire network (Up to thousands) at the same time accurately identify the essential leap of personnel positioning information. The third generation of RFID technology —REFINE RFID, also known as Lean RFID, uses 0.13um chip manufacturing technology, relies on the world’s top radio frequency electronic technology experts, and integrates the world’s most advanced antenna technology, optical communication technology, and industrial Ethernet transmission technology , Database processing technology, computer software technology, geographic information system technology, Internet technology, engineering structure technology, and other multi-disciplinary comprehensive project research, comprehensively, perfect, and thoroughly solved the first two generations encountered in ship and personnel positioning systems The technical bottleneck problem that RFID cannot break through.
Although the first two generations of RFID technology can solve single reader identification in some applications, when the system requires two or more readers to form a system network for identifying personnel information and positioning, there will be personnel information and positioning data delays of up to 10 The data delay of reading heads within 10 seconds and less than 10 can reach 30 seconds. With more than 10 reading heads, the data delay can be as high as three, five minutes or even ten minutes for incurable diseases. Also, data transmission is slower when there are multiple read heads. Due to the data round robin, the data of each read head can only be uploaded in batches, causing various information to go up and down and the positioning track goes up and down. It is simply unable to respond effectively to the location information of ships and personnel in real time. The more prominent problem is that the number of read heads for the entire subsystem cannot exceed 30. If the number of read heads exceeds 30, the communication box will be added. This will cause the data delay to double, and the delay can reach five minutes or even ten minutes. Such a system simply does not Then there is the value of personnel positioning. What’s more, the serious thing is that the previous two generations of systems have no directionality, or the directionality can only be between the two reading heads, single in and single out. Three, four, five, and six lanes and the directionality of the entire positioning system can not be judged.
The third generation of REFINE RFID not only can perfectly achieve ultra-high-speed identification, ultra-long-distance identification, ultra-low power consumption, and ultra-large flow identification between a single reader and a card, but also compared with the previous two generations of RFID, REFINE RFID truly realizes RFID technology Networked applications and high-speed real-time data transmission, multi-read heads (more than two, up to hundreds of single subnets) simultaneously and accurately identify the problem, more importantly, identification data screening, upload no more rounds, Delay. Each reading head has directivity, which can effectively judge the directivity, and it is triggered at the same time in the sea and data center, and the upper computer judges it within one second without delay.
The third generation of REFINE RFID also solves the Achilles’ heel of the previous two generations of RFID technologies, which are short in sensing distance and poor in anti-collision capabilities. The collision transfer of multi-frequency bands and multi-channels eliminates the possibility of conflicts. Its various technical indicators are in the leading position in the industry among similar products, creating a new era of real ultra-long distance, real network, high-speed mobile conditions, ultra-low power transmission, and real-time transmission identification technology.
Chapter 5. Overall system design ideas
The ship entry and exit location tracking and attendance management system involves computer software, database, electronic circuit, digital communication, wireless identification RFID technology and so on. Therefore, in addition to its functions, the stability, reliability, anti-interference ability, fault tolerance and abnormal protection are also fully considered when designing the scheme. The project plan determines to use the existing mature high-speed industrial Ethernet system or wireless transmission system as the main transmission platform to develop corresponding marine tracking and positioning base stations, personnel wireless encoding transmitters and other equipment to connect to the system, and to track positioning and attendance management through the positioning base station The special software and the main system exchange background data with a standard special database to realize safer, faster and more convenient management. The overall design of the system is mainly reflected in:
1. Realize the effective identification and monitoring of ships entering and exiting, so that the management system fully reflects “humanization, information and high automation”, and realizes the goal of digital management.
2. Provide port management personnel with various management information such as personnel entry and exit restrictions, attendance operations, monitoring and monitoring. Once a safety accident occurs, the system can immediately detect the operation surface within 3-100 meters or even further away from the accident site The staff and their numbers ensure the efficient operation of emergency rescue and safety rescue work.
3. The system design is safe, expandable, easy to maintain and easy to operate.
4. Easy networking, BS structure, easy to realize networking monitoring of ports and wider areas.
Chapter 6. System Design Principles and System Introduction
6.1 Principles of System Design
The ship’s identity recognition and port entry and exit automatic supervision system is supported by the main computer of the ground monitoring center under the support of the system software, through the data transmission interface and the communication light/cable laid along the roadway, the wireless data collector installed at sea is uninterrupted and instantaneously performed For data information collection, the wireless data collector will automatically collect the information of the identification card within the effective recognition distance, and transmit the relevant data to the ground center station through the transmission network without interruption and in real time. After the data information is analyzed and processed, the dynamic distribution of ships and personnel at sea can be reflected in the main computer interface in real time, so as to realize the purpose of port digital management.
Following the principle of “unified card issuance, unified equipment, and unified management”, the identification card is regarded as an “entry permit” or “port access permit”, and the “one person, one card or one ship, one card” system is implemented according to the permitted personnel.
1) According to the sea surface monitoring requirements, install wireless data collectors at sea lanes, ports, and work surfaces where certain ships are docked, and connect them to high-speed industrial Ethernet or LAN through cable/fiber data or wireless transmission interfaces to form Complete communication line.
2) After the port management personnel enter the staff or ship-related information, they will issue and equip the fishermen with identification cards.
3) The system database records the basic information of the person or vessel corresponding to the identification card, including basic information such as name, age, gender, position, personal photo, validity period, ship type, and certificate validity period.
4) Vessels entering the sea must carry identification cards, which will be recognized by the system when the card-holding vessels or persons pass the location where the identification system is set up. The system will read the card number information, and transmit the road section, time and other information passed by the cardholder to the ground monitoring center through the system transmission network for data management. At the same time, a prompt message will appear on the large geographic information screen to show the passing personnel. Or the basic information of the ship. If the detected wireless identification card number is invalid or enters a restricted area, the system will automatically alarm, and the security monitoring center staff on duty receives the alarm signal and immediately executes the relevant safety work management procedures.
5) The management personnel can authorize the management of the identification card according to the production plan. The scope of authorization includes: the waters or waterways that the employee can enter.tunnel
6) The base station collection equipment can accurately judge the entry and exit of personnel and ships and transmit this information to the back-end terminal, which greatly improves the management level of the port and brings the informationization of the port to a new level.
7) The system can automatically generate report data on the statistics and management of attendance operations to improve management efficiency.
6.2 System introduction
The sub-system of ship identity recognition and port entry and exit automatic supervision mainly adopts radio frequency identification technology (Radio Frequency Identification, RFID) and video technology. . With the decline in cost and standardization, the comprehensive promotion and universal application of RFID technology will be an irreversible opportunity. Judging from the current development, whether it is technology or product prices, it has been able to fully meet the needs of ship entry and exit management. Video surveillance equipment is mainly used to provide timely image information of ships entering and leaving the port, and to record these image information for future traceability.
The automatic monitoring system for ship identification and port entry and exit is composed of monitoring center, port automatic identification system, power supply and signal transmission system, mobile automatic identification device and video probe, etc. The main parts are installed on each fishery with electronic tags as information The carrier’s electronic ID card, write encrypted ship information in the electronic ID card, and read/write the information in the electronic ID card through an authorized radio frequency reader to realize automatic identification of ships and electronic information processing for supervision. system.
The main functions of the ship’s automatic identification and automatic port entry and exit supervision subsystem include:
Automatic recording of ships entering and leaving the port: The system does not require any operation by fishermen. Every time an operating ship passes through the port monitoring point when entering and leaving the port, the system will automatically feed back information to the monitoring center. The fishery administration department can clearly grasp the status of each ship entering and leaving the port through the monitoring platform. In addition, it can also call video surveillance to watch the real-time entry and exit status of the operating ship when the ship enters and exits the port, and record video images for later inquiries.
Prevent ships from leaving the port with illness: When a sick ship leaves the port, the system can automatically remind the competent authority to take effective measures to prevent the sick ship from operating.
When the ship leaves the port, the system automatically reminds the ship to turn on the AIS system and the satellite position monitoring system through the communication link, and at the same time sends various important information to the outgoing ship, including departure greetings, ship navigation safety reminders, various notices and announcements from the competent authority, etc. . When it is found that the ship has not turned on the corresponding AIS system or satellite monitoring system, the system will automatically remind the competent authority to take measures.
When a ship enters the port, the system can automatically send a return greeting to the ship via the communication link, a notification announcement from the competent authority, and other information.
Non-stop ship inspection and problem ship management. Through long-range radio frequency remote data transmission, law enforcement ships of the competent authorities can implement non-stop inspections of sailing ships. During the inspection process, because the law enforcement ship’s system can query the central database for ship information in real time, the ship will have nothing to hide, such as ships that violate regulations, expired annual inspections, and expired certificates. Effectively prevent blacklisted ships from going to sea for production.
Anchorage statistics: count the number of ships in the anchorage at each anchorage, so as to effectively manage the anchorage of ships.
Traffic Statistics. It can accurately count the flow of passing ships.
The system is mainly composed of ship identification electronic tags, card readers, wireless APs and other equipment. The system architecture is shown in the figure below.
Figure 4-1 The architecture diagram of the ship’s identity recognition and automatic supervision of port entry and exit
While the system realizes the automatic monitoring of ships entering and exiting the port, the portable ship identification card reader is equipped to enable law enforcement officers to avoid boarding the ship and remotely read the ship identification tag (RFID Tag) installed on the ship. The laptop computer connected to the ship’s identification card reader reflects ship information and basic crew information, and understands the overall situation of the ship, thereby greatly improving the efficiency of law enforcement.
Chapter 7. Product introduction and features (see product manual)
Chapter 8. Hardware equipment operation, testing and installation requirements
8.1 Application test
Before using the RW-RXX series readers, users can build a simple application test system to perform function testing, various parameter settings and other operations on the reader. The following describes the steps required to build a simple reader test system :
The first step is to connect the reader to the RS232 interface of the computer through the RS485-RS232 converter;
The second step is to place an I-TAG series electronic tag a few meters away from the reader. The tag can be placed at will, but it should not be blocked by large metal objects;
The third step is to turn on the power of the reader and start the reader;
The fourth step, start the test software on the computer, the software can be installed through the CD-ROM that comes with the reader;
For the fifth step, please refer to the test software instructions for the specific use of the software.
8.3 Installation requirements
The installation of RW-RXX series readers must consider factors such as installation method, installation location, height and angle. The quality of the installation directly affects the quality of the reader, so it must be taken seriously.
1. The card reader is installed on the bridge that ships must pass through when entering and leaving the port, connected to the antenna through a low-loss cable, and exchanges data with the control center computer through a standard protocol.
2. Installation method of reader support
There are many ways to install the reader bracket. The main installation methods are: vertical side mounting (the reader is installed on the column) or horizontal top mounting (the reader is installed on the gantry). The user can choose the installation method according to the on-site situation.
3. Fixation and height adjustment of the reader
When mounting on the side, the pole diameter of the reader is required to be 50~55MM, and the length is 2.5~3.5M. It is better to use stainless steel with a wall thickness greater than 1.2~2.0MM. Use the fasteners included in the package to fix the reader on the top of the pole.
When installing on the top, it is required to install the gantry pole with a diameter of 70~80MM and a crossbar with a diameter of 50~55MM. It is best to use stainless steel with a wall thickness of more than 1.2~2.0MM. Also use the fasteners included in the package to fix the reader to the middle of the crossbar.
4. Adjust the installation angle of the reader
The purpose of the angle adjustment of the reader is to point the effective card reading range of the reader to the best direction for reading the tag ID number, so that the reading and writing area covers the maximum range of the tag’s motion track.
When installing the RW-RXX series reader, the spherical surface of the reader should point to the area where the tag passes, and deviate to the ground. The elevation angle of the reader (the angle between the reader and the horizontal direction) is generally adjusted to 10 to 30 degrees, and the angle depends on the construction environment.
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