CN103198718A - A remote monitoring system for ship draft - Google Patents

Abstract

The invention discloses a ship draft remote monitoring system which comprises a ship draft field acquisition system, a control center remote monitoring system, a centralized control room VTS and AIS equipment, a ship overspeed detection system, a wireless network module A, a ship ultrahigh detection system, a wireless network module B, a ship draft acquisition sensor array, an error compensation sensor, an environmental parameter sensor and field overwater image acquisition equipment. The invention can provide data support for real-time data display of a monitoring center, and simultaneously monitor and early warn the ship with the super draft and the overloaded ship according to the acquired real-time data, thereby realizing two functions of remote real-time monitoring and early warning of the draft of the navigation ship. The invention is based on various transmission modes, and establishes communication by utilizing the wireless network module integrating the GPRS communication module, the CDMA communication module, the 3G communication module and the 4G communication module, thereby ensuring the real-time property and the reliability of data transmission.

Description

A remote monitoring system for ship draft

technical field

The invention relates to a monitoring technology for the draft of a ship, in particular to a remote monitoring system for the draft of a ship.

Background technique

The draft of a ship refers to the vertical distance between the water surface and the base plane of the ship's bottom, which varies with the ship's load capacity and the water density outside the ship. According to the draft of the ship, the displacement and load capacity of the ship at that time can be obtained. The draft should be measured when the ship enters and exits the lock and port, crosses the shoal, docks at the wharf, and loads and unloads cargo, so as to ensure the safety of the ship's navigation.

The existing ship draft measurement method can only monitor the ship on site, and cannot guarantee that the monitoring center can obtain ship draft data in a timely, reliable and convenient manner and issue early warnings to violating ships. In some ports, the use of mobile network or short-wave communication is also adopted for long-distance data transmission, but the single network is unstable, and the reliability of data transmission cannot be guaranteed.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention is to design a remote monitoring system for ship draft that can not only perform remote monitoring, but also improve reliability.

In order to achieve the above object, the technical solution of the present invention is as follows: a ship draft remote monitoring system, including ship draft on-site acquisition system, control center remote monitoring system, central control room VTS and AIS equipment, ship overspeed detection system, wireless network module A. Ship superelevation detection system, wireless network module B, ship draft acquisition sensor array, error compensation sensor, environmental parameter sensor and on-site water image acquisition equipment. The ship draft on-site acquisition system is respectively connected with wireless network module B, The ship draft acquisition sensor array, error compensation sensor, environmental parameter sensor and on-site water image acquisition equipment are connected, and the remote monitoring system of the control center is respectively connected with the central control room VTS and AIS equipment and wireless network module A. The wireless network Module A is connected to wireless network module B, ship overspeed detection system and ship superheight detection system respectively through wireless network;

The ship draft on-site acquisition system obtains the draft data of the navigable ship detected by the underwater ultrasonic sensor array for preprocessing, and performs two-dimensional and three-dimensional image drawing to determine whether the ship exceeds draft; Take pictures of passing ships, and transmit the images of ships with excess draft to the on-site acquisition system of ship draft, and package them with draft data; wireless network module B detects one or more network communication signals, and selects one of them This network establishes a communication link with the remote monitoring system of the control center; the on-site acquisition system of ship draft encrypts the ship information and sends it to the control center via the network;

The remote monitoring system of the control center obtains the data information of VTS and AIS equipment and saves it and establishes a ship information database, receives the ship draft information through the wireless network module A and analyzes and processes the data, according to the ship rated value given in the ship information database Judging whether the ship is overdrafted or overloaded based on the draft and load information, it will issue early warning information to overdraft and overloaded ships, and request the on-site collection system to send pictures of overloaded ships; the ship draft on-site collection system will The pictures are sent to the remote monitoring system of the control center; the remote monitoring system of the control center receives the pictures and saves the draft data and violations of all ships to the ship information database;

The ship draft on-site acquisition system obtains the ship draft data measured by the ultrasonic sensor array and the measurement data of the underwater environmental parameter sensor and the error compensation sensor through the RS485 bus module; Violation pictures;

The remote monitoring system of the control center obtains the ship information of the VTS and AIS equipment in the centralized control room through the RS232 bus, and receives the data transmitted by the ship's superelevation detection system and the overspeed detection system, and records the draft, height, speed, and VTS and AIS of the ships of all parties. The static information acquired by the equipment is used for data fusion to establish a ship information database.

The transmission mode of the present invention adopts a wireless network transmission mode between the on-site acquisition system of ship draft and the remote monitoring system of the control center, including a public network transmission mode and a private network transmission mode; the public network transmission mode utilizes an integrated GPRS communication module, a CDMA communication module, The wireless module of the 3G communication module and the 4G communication module establishes network communication; the private network transmission method uses a short-wave transceiver device to establish short-wave communication.

The on-site acquisition system of ship draft and the remote monitoring system of the control center described in the present invention are respectively installed and run on industrial computers.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention can provide data support for the real-time data display of the monitoring center. At the same time, according to the collected real-time data, the super-draft ship and the overloaded ship are monitored and early-warned, and the remote real-time monitoring and early-warning of the draft of the navigable ship are realized. Great function.

2. The present invention is based on a variety of transmission methods, and uses a multi-mode wireless network module to integrate a wireless network module such as a GPRS communication module, a CDMA communication module, a 3G communication module, and a 4G communication module to establish communication. Choose other methods for data transmission; in places where the base station of the public network cannot cover, the method of establishing short-wave communication based on short-wave transceivers can also be used to ensure the real-time and reliability of data transmission.

3. The remote monitoring system of the control center of the present invention is connected with the VTS, AIS equipment and the superelevation, superspeed and superdraft detection system of the ship, and can obtain the ship data collected by the above systems in real time to establish a ship information database, and more conveniently inquire and modify Information about the ship and judgment of violations.

Description of drawings

The present invention has 4 accompanying drawings, wherein:

Figure 1 is a schematic diagram of a remote monitoring system for ship draft;

Fig. 2 is a logic block diagram of the ship draft remote monitoring system;

Figure 3 is a flow chart of the on-site acquisition system for ship draft;

Figure 4 is a flow chart of the remote monitoring backend of the control center.

In the figure: 1. On-site collection system of ship draft, 2. Remote monitoring system of control center, 3. VTS and AIS equipment in centralized control room, 4. Ship overspeed detection system, 5. Wireless network module A, 6. Ship superelevation detection system , 7. Wireless network module B, 8. Ship draft acquisition sensor array, 9. Error compensation sensor, 10. Environmental parameter sensor, 11. On-site water image acquisition equipment.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Fig. 1, ship's draft on-the-spot collection system 1 of the present invention is installed, runs on the industrial computer of monitoring site, and control center remote monitoring system 2 is installed, runs on the industrial computer of centralized control room, monitors the site and control center The computers are respectively connected with the wireless network modules. Violation image acquisition equipment is a high-definition camera installed on the water, which is responsible for taking pictures of ships and sending pictures of violating ships to the control center for processing. The draft detection device is an ultrasonic sensor array installed on the underwater gate, an environmental parameter sensor 10, an error compensation sensor 9, and the like. The on-site acquisition system 1 for ship draft is connected with the draft detection device, controls and collects the ship draft data measured by the sensor array and environmental parameters, and the data measured by the error compensation sensor 9 through the RS485 bus, and performs preprocessing and encrypted transmission on the original data . The on-site acquisition system establishes a wireless connection with the control center. In actual application, the wireless network module A5 and the wireless network module B7 can detect one or more network signals, and select one of the networks to establish a communication link to transmit draft data information according to the current signal state. When the public mobile signal is not good, the data can also be sent by means of short-wave communication. The monitoring backend obtains the ship data information in the VTS and AIS equipment 3 in the central control room through the RS232 serial port line, processes the data and establishes a ship information database, and obtains the data transmitted by the ship's super-high and over-speed detection system, and converts various information into data The fusion is saved to the ship information database. The control center receives the data information sent by the ship draft on-site collection system 1 through the wireless network and processes the data, judges whether the monitored ship is overdrafted or overloaded, issues a warning to the overdrafted ship, and updates the ship information database at the same time.

As shown in FIG. 2 , the present invention includes a ship draft on-site collection system 1 and a control center remote monitoring system 2 . The ship draft on-site acquisition system 1 includes an image acquisition module, a data acquisition module, a data processing module, a data display module and a data sending and receiving module. The image acquisition module of the on-site acquisition system is responsible for taking pictures of the ship and saving them; the data acquisition module collects the draft data information of the sensor array, the environmental parameters, and the data of the error compensation sensor 9; the data processing module preprocesses the draft data to determine whether Excess draft; the data display module draws a two-dimensional line chart of the ship's section and a three-dimensional chart of the hull according to the processed ship's draft data; the data sending and receiving module encrypts the processed data and pictures and sends them to the network, and at the same time receives information from the control center . The control center remote monitoring system 2 includes a data collection module, a data sending and receiving module, a data analysis module, an early warning module and a database module. The data acquisition module of the remote monitoring system 2 of the control center is responsible for collecting the ship information obtained by the VTS and AIS equipment 3 in the centralized control room and the ship superelevation and overspeed detection system; the data transceiver module receives the ship draft data and illegal pictures transmitted from the network; data processing The module processes the received ship data to determine whether it is overdraft and overloaded; the early warning module sends early warning information to overdraft and overloaded ships; the database module completes operations such as adding and modifying the ship information database.

Fig. 3 shows the flow chart of the on-site acquisition system 1 for ship draft, which specifically includes the following steps:

A1. The wireless module scans the surrounding network, and chooses a way with a better signal to establish a communication connection;

A2. The water image acquisition equipment at the draft detection site enters the ready state. When the ship is detected to enter the shooting area, take pictures of the ship and save the pictures;

A3, the serial port is initialized and the data receiving thread is opened, and the ship draft data measured by the underwater ultrasonic array sensor is collected through the RS485 bus according to the method of time-sharing grouping, and the data measured by the underwater environmental parameter sensor 10 and the error compensation sensor 9 are collected simultaneously;

A4. Carry out error compensation and filter processing to the original draft data according to the data measured by the environmental parameter sensor 10 and the error compensation sensor 9;

A5. According to the processed ship draft data, draw a two-dimensional broken line chart of the ship's section and a three-dimensional chart of the hull;

A6. Judging whether the ship exceeds the draft according to the ship's draft line, if the ship exceeds the draft, obtain the illegal picture, and package the draft data and the picture together; if the ship does not exceed the draft, directly package the draft data;

A7. Encrypt the packaged data and picture information;

A8. Send the encrypted information to the network;

A9. Receive the overloaded ship information sent by the control center;

A10. Obtain the image information of the overloaded ship and send it to the network;

A11. Continue to wait for the ship to enter the area to be tested.

Figure 4 shows the flow chart of the remote monitoring backend of the control center, which specifically includes the following steps:

B1. The wireless module scans the surrounding network, and chooses a way with a better signal to establish a communication connection;

B2, serial port initialization, start the serial port receiving thread, and collect the dynamic and static information of the ship of VTS and AIS equipment 3 in the centralized control room;

B3. Convert the format of the dynamic and static information of the ship obtained by the VTS equipment and save it in the ship information database, and at the same time obtain the measurement information of the ship's superelevation and overspeed detection system, perform data fusion and save it in the database;

B4. Receive ship draft data information through the network;

B5. Decrypt the draft information;

B6. According to the rated load and maximum draft value of the ship in the ship information database, judge whether the ship is over draft or overloaded. If the ship is not over draft or overloaded, directly save the ship draft data to the database; if the ship over draft or Overloaded, send early warning information to overdraft and overloaded ships, and request to obtain pictures of overloaded ships;

B7. Receive and save the picture of the overloaded ship returned by the network;

B8. Ship draft data and violation information are stored in the database;

B9. Continue to wait to collect the ship information of the VTS equipment.

Claims (3)

1. drauht amount remote supervision system, it is characterized in that: comprise drauht amount collection in worksite system (1), control center's remote supervision system (2), central station of floating dock VTS and AIS equipment (3), boats and ships overspeed detection system (4), wireless network module A(5), boats and ships superelevation detection system (6), wireless network module B(7), drauht amount pick-up transducers array (8), error compensation sensor (9), environment parameter sensor (10) and on-the-spot image capture device waterborne (11), described drauht amount collection in worksite system (1) respectively with wireless network module B(7), drauht amount pick-up transducers array (8), error compensation sensor (9), environment parameter sensor (10) is connected with on-the-spot image capture device waterborne (11), described control center remote supervision system (2) respectively with central station of floating dock VTS and AIS equipment (3) and wireless network module A(5) be connected described wireless network module A(5) and by wireless network respectively with wireless network module B(7), boats and ships overspeed detection system (4) is connected with boats and ships superelevation detection system (6);

Described drauht amount collection in worksite system (1) obtains the detected navigation drauht of underwater ultrasound sensor array amount data and carries out pre-service, and carries out the two and three dimensions image and draw, and judges whether boats and ships surpass drinking water; The image capture device at drauht amount scene is to the shippping traffic preservation of taking pictures, and the image that will surpass the draft amount boats and ships reaches drauht amount collection in worksite system (1), with the processing of packing of draft amount data; Wireless network module B(7) detects one or more network service signals, and select that wherein a kind of network and control center's remote supervision system (2) are set up communication link; Drauht amount collection in worksite system (1) encrypts ship information and is sent to control center via network;

Described control center remote supervision system (2) obtains the data message of VTS and AIS equipment and preserves and set up the ship information database, via wireless network module A(5) receive boats and ships draft amount information and data are carried out dissection process, judge according to the specified draft amount of boats and ships given in the ship information database, weight information whether boats and ships surpass drinking water or overload, boats and ships to super drinking water and overload send early warning information, and request collection in worksite system sends the overloaded vessel pictorial information; The instruction that drauht amount collection in worksite system (1) basis receives is sent to control center's remote supervision system (2) with the picture of overloaded vessel; Control center's remote supervision system (2) receives picture and all drauht amount data and situation violating the regulations is saved in the ship information database;

Described drauht amount collection in worksite system (1) obtains the measurement data of drauht amount data that array of ultrasonic sensors measures and underwater environment parameter sensors, error compensation sensor (9) by the RS485 bus module; Link to each other with high definition camera waterborne, obtain the boats and ships picture violating the regulations of shooting by wireless network;

Described control center remote supervision system (2) obtains the ship information of central station of floating dock VTS and AIS equipment (3) by the RS232 bus, and receive the data of boats and ships superelevation detection systems (6), overspeed detection system transmissions, with each side's drauht, highly, the static information that obtains of speed and VTS and AIS equipment carries out data fusion and sets up the ship information database.

2. a kind of drauht amount remote supervision system according to claim 1, it is characterized in that: adopt the wireless network transmissions mode between described transmission mode drauht amount collection in worksite system (1) and the control center's remote supervision system (2), comprise public network transmission mode and private network transmission mode; The public network transmission mode utilizes the wireless module of integrated GPRS communication module, cdma communication module, 3G communication module, 4G communication module to set up network service; Private network transmission mode radiothermy R-T unit is set up short wave communication.

3. a kind of drauht amount remote supervision system according to claim 1, it is characterized in that: described drauht amount collection in worksite system (1) and control center's remote supervision system (2) are installed respectively, are operated on the industrial computer.

Images