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1. Project background
At present, the navigation of all ships is queued through manual dispatch and command, and people are commanding the navigation of each gate based on experience. All navigation records are also manually recorded. It is difficult for the leadership to make statistics on previous navigation records. The analysis also fails to provide scientific and reliable navigation information data for past ships, causing some ships to enter and exit the lock room without observing commands and rely on their own experience and subjective consciousness, which brings a lot of trouble to the management of the lock station.
Without scientific and reasonable queue management, it is impossible to estimate the number of ships when there are too many ships and when there are few ships. It is difficult to analyze scientifically during peak periods, and it is difficult to rationally arrange personnel, which affects work efficiency. In addition, there are too many ships waiting. The poor environment and fatigue affect efficiency and even cause work errors. The lack of necessary publicity media prevents timely publicity of water level, navigation conditions, weather and other services to the outside world, and the establishment of the required national level Water management unit, government affairs disclosure, information disclosure and other requirements are not in compliance.
Use high-tech computer technology to replace manual queuing, so as to solve the problems of low navigation efficiency of the ship lock and unreasonable arrangement of on-site personnel, and effectively improve the service quality of the ship lock; at the same time, it can monitor and predict the flow of ships, grasp the service situation in real time, and provide useful management Information, optimizing the combination of resources, and improving navigation efficiency are inevitable trends in social development.
2. Construction goals
Improve the organizational management, safety management, and operation management level of municipal sluice pumping stations to meet the management requirements of the national first-level water management unit, and realize the standardization, standardization and informationization of the management and operation of sluice pumping stations.
At this stage, the ship lock automatic queuing system is completed, and the long-term goal is to realize the ship lock automatic dispatching management platform (queuing, charging, automatic control, unified dispatching, and unified operation).
Three, system architecture
Structure diagram of automatic queuing system
As shown in the figure above, in order to prevent embezzlement, special measures are taken to prevent disassembly of the active electronic tags installed on ships. The radio frequency equipment is connected to the background through the standard serial port RS232/485 interface to Ethernet. In this way, the electronic tags are installed. When the ship passes through the channel, it will be recognized by the reader and read the data at a long distance, and the upper computer will analyze and process the read data and apply it to the queuing system.
Considering the stability of the system, since the monitoring platform has a dedicated database server and application server, as well as a corresponding hot backup plan, this system is considered from the perspective of economy and conservation, no separate server is configured, and the application is deployed directly in the monitoring On the platform server. In addition, in order to prevent the failure of the radio frequency card reader device, it is recommended to prepare at least two devices in actual applications. When a failure occurs, simply replace it and install it to work normally.
Because the queuing voice system uses an intelligent voice engine, the voice prompts and alarms during the operation of the system are automatically broadcast in the form of digital voice through the voice engine.
4. System functions and technical features
By modeling the lock chamber, scientifically calculate the position of the ship in the model and the size it occupies, and on this basis, automatically generate navigation instructions according to various water and working conditions collected in real time, and then automatically generate the instructions Send to the monitoring system for execution. The entire control process does not require manual intervention. In the true sense, automatic operation and management of ship locks are realized. In addition, there are real-time monitoring and management of RFID equipment status, statistical analysis of navigation data, etc., which are implemented in this project The process, the system functions and technical characteristics of the concrete realization mainly have the following six aspects:
Provide scientific and reliable navigation information for passing ships
LED and voice prompts real-time information such as the current water level of the inner and outer rivers, the tide level after half an hour, one hour later, and the navigation time of the ship, providing scientific navigation data to managers and ships.
Automatic queue
The queuing model is established according to the actual length and width of the lock chamber. The ship enters the model according to the principle of “first come first”. The position and size of the ship in the model are designed according to the actual size of the ship and the scale of the model.
Automatic navigation
The navigation and suspension instructions are automatically issued according to the queue situation of the model. When the queuing work of the current gate is completed, the system automatically issues navigation instructions to the monitoring system and executes it. The gate is fully opened. After the traffic light is switched, the system informs the ship to enter the lock chamber through voice and LED, and the system counts all ships to enter the lock chamber automatically. Follow-up process. The execution of all actions is automatically completed by the computer. If a failure occurs during the execution, the system will alarm and provide a manual intervention interface.
Super high and super deep discrimination
According to basic data and current water level calculations, judge whether there is super high or super deep. Among them, the entry from the outer river into the inland river is calculated as full load, and the entry from the inner river into the outer river is calculated as empty. Due to the uncertainty of the ship with full load and no load, the ultra-high and ultra-deep queuing system can only be used as an auxiliary means of discrimination. More accurate judgment requires a special identification system.
Statistical analysis of navigation data
According to the analysis and statistical data, the management can have a more comprehensive understanding of the traffic volume in each period, and the clock will allocate personnel reasonably for each period.
Real-time monitoring and management of equipment
Real-time monitoring of all RFID equipment on site. If any equipment fails, it will immediately alarm and prompt the user to deal with it. The normal equipment will display the collected ship information in real time, which is convenient for users to monitor the ship conditions at each monitoring point.
Program features:
Large flow: extremely high anti-collision performance, adopting multiple anti-collision schemes, supporting simultaneous reading of more than 200 tags;
It supports high-speed mobile reading, and the moving speed of the identification card can reach more than 200 km/h.
High reliability, working temperature -40℃~85℃, waterproof and shockproof, meet the application of industrial-grade environment.
High anti-interference: There are no special requirements for various interference sources on site, and the installation is convenient and simple.
There is no need to apply for and pay for the ISM microwave frequency band that is open worldwide.
Ultra-low power consumption: It is safe for the human body and has no health damage.
High efficiency: Effectively improve the passage rate of the ship lock and reduce the probability of blocked navigation.
Anti-counterfeiting of ship certificates. In order to evade punishment and payment of fees, falsification of ship certificate data, ship name and ship number is rampant. After adopting RFID technology, due to the global uniqueness of the electronic tag ID number and the anti-disassembly measures of the electronic tag, such problems can be completely eliminated.
Traffic and transportation volume statistics. It can accurately and automatically count the traffic and freight volume of passing ships.
Self-energy: realize intelligent voice prompt and intelligent control through integration with monitoring system and voice system.
Realize the requirements of anti-disassembly of electronic tags
5. Site map:
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