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challenges and needs
my country has entered the period of building a well-off society in an all-round way, and building a “harmonious society” has become an important goal of my country’s social and economic development at this stage. How to better strengthen the construction of water transportation supervision facilities, ensure the safety of people’s lives and property, and protect the environment, Ensuring the sustainable development of the economy has become the top priority of the port and shipping sector. In recent years, with the gradual emergence of logistics bottlenecks in land transportation, improving the efficiency of water transportation and improving the supervision environment for water transportation have gradually become the development strategies of cities along the river. In the traditional “golden waterway” of the Yangtze River Delta and areas along the canal, major cities are formulating ambitious “water transport cities” and “digital port and shipping” project plans to give full play to their advantages in inland shipping and reduce logistics and transportation costs. Improve the comprehensive competitiveness of the economy and society in order to further support the rapid development of economic construction.
In the actual business environment, information technology has been widely and far-reachingly applied. Each inland port and shipping city has invested a lot of manpower and material resources to speed up the pace of information network construction and scientific and technological investment, such as establishing and improving the ship center database of the entire shipping area, and realizing annual ship inspection, entry and exit visas, and collection and payment of fees based on port and shipping management business. , on-site supervision, comprehensive utilization of information and other business information, network dynamic management. The application of these systems relying on advanced information technology has realized non-stop inspection, broke the traditional mode of “territorial management”, and laid a solid foundation for building a “digital port and shipping”. However, in the on-site supervision module of these systems, still use The collection method of manually entering the ship name and number. If the ship’s name and number are covered, it cannot be seen clearly at night, the ship’s traffic is too large, and the operator is sleepy, it may cause the ship’s name and number to be unable to be automatically identified, which will become the biggest bottleneck in creating a “digital port and shipping”. So, is there an economical and practical way to solve the automatic identification of the ship number? Yes, this is a new technology that has matured in recent years, namely radio frequency identification technology (RFID).
RFID is an automatic identification technology that originated in the 1950s. It uses radio frequency for contactless communication to exchange data for identification purposes. A typical RFID application system usually consists of an electronic tag that identifies a specific target object, a reader that receives the electronic tag signal, and application software. Compared with traditional magnetic cards and contact IC cards, RFID technology does not require manual intervention when completing the identification work. It is suitable for automatic operation of the system and is not easy to be damaged. It can identify high-speed moving objects and identify multiple radio frequency cards at the same time. The operation is fast and convenient. . Electronic tags can use special packaging methods to effectively resist corrosion and invasion in harsh environments such as oil stains and dust pollution.
Radio frequency identification system can be divided into two categories: active and passive according to the power supply mode of electronic tags. The working energy required by the passive tag needs to be obtained from the radio frequency beam sent by the reader, which is provided after rectification and storage. The cost is low, but the radio frequency power is large. The active tag itself has a miniature battery. Since it does not require radio frequency power supply, its identification distance is longer, and the power required by the reader is less. It has the advantages of stable reading and writing, good anti-collision performance, and a large amount of information about the carried items. Ship identification applications are critical performance requirements.
application solution
With its solid foundation in active RFID technology, Unicom has launched a series of electronic tags and active products, which have been warmly welcomed by the market. It has won countless loyal customers in various RFID application fields, and has also made achievements in challenging highway non-stop toll applications and ship identification applications under harsh conditions.
Active electronic tags are installed on ships entering and leaving the navigation area (in order to prevent misappropriation, special measures can be taken for the installation method to achieve anti-disassembly requirements), and the individual information or freight information related to the ship can be stored in the tag. A long-distance reader is installed on the channel, and it is linked to the background through the standard serial port RS232/485 interface. In the area where wiring is difficult, a wireless data transmission module (GPRS/CDMA) can also be linked to maintain real-time communication with the background application system. In this way, the ship with the electronic tag installed will be recognized and read by the reader within a range of up to 80 meters when passing through the channel. A port supervisory boat can be arranged downstream of the installation site of the reader, and the computer in the port supervisory boat is kept online with the central database through the wireless Internet access system, and the on-site supervisor can carry out targeted monitoring of heavy loads at any time through the displayed results. Non-stop inspection of ships. If it is a problem ship with incomplete or expired licenses, the port supervisor can quickly leave the ship for inspection. Of course, the port supervisory boat can also use the portable mobile reader to achieve the inspection and management objectives of all relevant vessels. The following are the specific details of some application scenarios:
1. Installation of the reader. The reader should be installed in an appropriate position to ensure 100% reading of the electronic tags of all ships passing through the channel. The deployment strategy of installing on both sides of the channel and on the bridge across the river can be adopted: the height of the bridge is generally not more than 30 meters, so the reader is installed on the underside of the bridge and covers most of the lower area of the bridge as much as possible. At this time, no matter when the ship passes any position on the underside of the bridge, the distance between the RF antenna and the ship is guaranteed not to exceed 30 meters, thus ensuring the effective reading and writing of the electronic tag by the reader, and also ensuring the correct and effective ship name and number. identify.
2. The installation of the electronic label card on the ship. From the perspective of system stability, it is more appropriate to use active electronic tags. Electronic tags are generally installed in areas that are less touched by the crew and have less interference, such as the upper side of the ship’s driving window is the best installation location. The active electronic tag has a high protection level, a solid shell, can effectively resist rainwater, easy installation, strong anti-pollution ability, and can be used reliably even if it is directly installed on some transport tugboats without a driving window.
3. Use policy tools to ensure the issuance of electronic tags. The application of RFID technology in inland port and shipping management is still relatively small, and ship owners may have various doubts about the operation and economy of the technology, resulting in a situation of non-cooperation. The main problem is that the ship owner thinks that the electronic tag has been monitored by the port and shipping management department and does not cooperate. On the one hand, the port and shipping management department should let ship owners accept it through publicity, and on the other hand, it should formulate corresponding policies to restrict uncooperative ship owners to ensure the smooth distribution of electronic tags. For foreign port-registered ships, electronic tags can be issued during entry and exit visas to ensure that all ships in the navigation area can be managed on-site through radio frequency identification technology.
System functions
The ship identification and entry and exit automatic supervision system based on active RFID technology can realize the following functions:
1. Automatically record the entry and exit of ships: the system can automatically feed back the identity information to the monitoring center without manual operation by ship staff. The ship management department can clearly grasp the status of each ship entering and leaving the port through the management (monitoring) center. In addition, it can also watch the real-time entry and exit situation through the video surveillance installed in the port, and record the video image for subsequent inquiry. .
2. Prevent the ship from leaving the port with sickness: When the sick ship leaves the port, the system can automatically remind the competent department, so as to take effective measures to prevent it from going out.
3. 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 departing ship, including departure greetings, the ship pays attention to navigation safety reminders, various notices from the competent authorities and notice, 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 authorities to take measures.
4. When the ship enters the port, the system can automatically send various information such as greetings back to the port, notices and announcements from the competent authorities to the ship through the communication link.
5. Non-stop ship inspection and problem ship management. Through long-distance radio frequency data transmission, the law enforcement ship of the competent authority can realize non-stop inspection of sailing ships. During the inspection process, because the system of the law enforcement ship can query the ship information from the central database in real time, such as illegal ships, expired annual inspections, expired certificates, etc., there will be nowhere to hide and effectively prevent blacklisted ships from going to sea for production.
6. Anchorage statistics: Count the number of ships in each anchorage, so as to effectively manage the berthing of ships.
7. Traffic statistics: It can accurately count the traffic of passing ships.
Program Features
Large flow: extremely high anti-collision, using a variety of anti-collision schemes, can support reading more than 200 tags at the same time;
Support high-speed mobile reading, and the mobile speed of the identification card can reach more than 200 kilometers per hour.
High reliability, working temperature -40 ℃ ~ 85 ℃, waterproof, anti-shock, to meet the application of industrial environment.
High anti-interference: There are no special requirements for various interference sources on site, and the installation is convenient and simple.
The global open ISM microwave frequency band does not need to apply and pay.
Ultra-low power consumption: very safe for human body, no health damage.
Ship pass records. Every time a ship passes a monitoring point, it is automatically 100% recorded in the central database.
Non-stop ship inspection. The port supervision and management boat can realize the non-stop inspection of the sailing ships, which greatly facilitates the supervision work.
Gate fee management. For a ship lock that charges a fee for passing through the voyage, the identification system combined with the charging system can realize non-stop charging for credit ship owners, effectively improve the pass rate of the ship lock and reduce the probability of traffic jams.
Toll management of the “Four-Self” waterway. The identification system installed at the entrance of the “four-self” channel can effectively record the ships entering the “four-self” channel, and combined with the ship’s credit account, the fee can be deducted and paid.
Ship certificate anti-counterfeiting. In order to evade punishment and payment, fraudulent ship certificates and ship names and numbers are rampant. After the adoption of RFID technology, due to the global uniqueness of the ID number of the electronic tag and the anti-disassembly measures of the electronic tag, such problems can be completely eliminated.
Problem ship management. Because the identification control computer queries the ship information from the central database in real time, the ships with problems such as illegal ships, expired annual inspections, and expired certificates will be invisible.
Traffic and volume statistics. It can accurately and automatically calculate the flow and freight volume of passing ships.
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