KR20100085323A - A malfunction monitoring system and method of ship equipment - Google Patents

Abstract

PURPOSE: A malfunction monitoring system of ship equipment and a method thereof are provided to decide a state of the equipment by using history information, thereby in advance exchanging a part of elements before the trouble occurrence of the equipment. CONSTITUTION: A Zigbee-power line communication interface module(8) interconnects Zigbee communication within areas which wireless communication is possible and power line communication between areas which wireless communication is impossible within a ship. The Zigbee-power line communication interface module transmits the signal information of a sensor node transferred through a Zigbee communication network and the signal information of an active tag received from a router to a power line communication network. A control computer(2) decides whether the malfunction of the equipment is occurred or not according to the signal information of the sensor node and the active tag received through the power line communication network.

Description

Malfunction Monitoring System and Method of Ship Equipment

The present invention relates to a system and method for detecting abnormal operation of various equipment in a vessel by using ubiquitous technology using Zigbee, power line communication, and the like.

Zigbee

Zigbee is a standard technology for home automation and data networks with low transmission speeds. With the touch of a button, you can control lights from anywhere in the house, turn on / off your home security system VCR, and make home automation more accessible by dialing through the Internet. It's a technology that starts from something that's convenient to use. In other words, ZigBee is an international standard protocol and low power wireless communication technology suitable for next-generation wireless networks that support the construction of low-cost networks by reducing data size with simplified protocols and limited functions. Zigbee is a short-range wireless communication standard corresponding to the 868 MHz, 915 MHz, and 2.4 GHz frequency bands, and uses a physical layer (PHY) and a media access control (MAC) layer defined by IEEE 802.15.4.

The simple, cost-effective, low-power wireless connectivity offered by ZigBee technology can be used in a variety of applications, including industrial and home monitoring, control and automation, and medical diagnostics. The leading areas in the market today are industrial, commercial, and residential systems, where wireless control technology can have a significant impact on a company's balance of payments or customer safety awareness.

The applications of Zigbee are as follows.

For industry, ZigBee technology can be used to improve automatic instrument readout (AMR) solutions, logistics and inventory tracking, security and access control in utilities and energy management. For other systems, tracing can be used for preventive maintenance and performance monitoring. Some examples include earthquake detection, inclinometers, robotics, and security systems.

Ideal applications for ZigBee technology in commercial systems include building control and automation, wireless lighting, security and access control, and asset and inventory management. The introduction of asset tags that track every product from the individual equipment and products in the warehouse to the pallet level is especially important for wireless inventory management solutions. ZigBee wireless systems can provide a new level of control for security systems that connect components such as motion control sensors, cameras and employee badges.

In the consumer market, housing convenience is becoming a real need, not just a fancy feature. Wireless technology can save you time by reducing man-made operations, automatically turning the equipment on and off, watering the grass, and monitoring security status. ZigBee technology seamlessly connects all systems, for example, by opening the front door and turning on the lights in the house. It can also provide the ability to make intelligent decisions based on the sensor network environment, such as detecting the presence of people inside a house. Wireless technologies such as ZigBee support two-way message delivery, making them ideal for remote control of homes or small offices.

The main uses of ZigBee technology in residential systems are home control and automation, environmental control, security and access control. Other applications include home automation systems, including lighting and HVAC control devices, security systems, blind and curtain control, remote control of set-top boxes and other digital entertainment devices. In addition, the introduction of wireless networks in home systems enables remote monitoring and control, for example from a computer or handheld device connected to the network. Consumer electronics with accessory interfaces can add ZigBee technology after purchase, for example, a compact flash or PCMCIA slot in a PDA or notebook PC.

Wireless connection technology is also being introduced into mobile phones. As mobile phones and smartphones are becoming key elements in everyday life, it makes sense to add technology that can increase the utilization of each product. In particular, the introduction of ZigBee technology into the home market has increased the possibility of using mobile phones for tasks such as running sprinkler systems or adjusting thermostats.

There are numerous other small or niche markets where ZigBee technology can be applied, including medical monitoring, automotive security and access control, remote control devices, vending machines, product unattended terminals, and military applications.

The advantages of Zigbee technology are as follows.

The target market for ZigBee technology is the mature traditional wireline communications market. The introduction of wireless in the wired communications market has been predictable. After the widespread use of wired electronic devices, making the product wireless is a natural development direction. Wireless access and control is becoming a powerful trend, from TV remote controls, remote door openers, to PDAs and mobile phones that provide the computing power of previous generation desktop PCs.

Various trends are driving the rapid adoption of wireless in a variety of markets. Wireless sensor networks can contribute to improved energy efficiency and lower fuel costs. For example, if a thermostat fails, building management personnel or homeowners may not realize the problem until a significant amount of expensive energy is wasted. This can be a serious problem in an environment where employees do not always work inside buildings, such as warehouses. Using a wireless sensor network, you can immediately notify the right person of the problem. Wireless networks do not have to pay for cabling and manual adjustments to the system, which can be used at low cost to address regulatory changes, such as national and regional fire and safety regulations.

ZigBee technology is based on industry standards, providing interoperability to enable communication between devices from different manufacturers, and offer flexible integrator options to system integrators and customers. ZigBee technology also provides simplicity and cost-effective implementation for architectural and remodeling applications. In addition, Zigbee technology consumes less power, allowing longer battery-powered networks.

ZigBee-based technologies can contribute to the cost savings of original equipment manufacturers (OEMs) as well as equipment replacement. This is typically due to the fact that MCUs are already used in OEMs, and only minimal cost increases are needed for additional memory to run MAC and ZigBee software. Freescale's IEEE 802.15.4 2.4 GHz band RF transceivers are available worldwide, eliminating the need to redesign or certify products for different markets or regions.

ZigBee-based networks are standards-based solutions that are interoperable and cost less than proprietary solutions. In addition, the ZigBee protocol is designed to operate at very low power, so it is advantageous to apply ZigBee technology to networks of battery-powered devices such as security and automation systems. The ZigBee standard has endless possibilities as an easy-to-use tool for a variety of short-range wireless applications.

The growth of short-range low-power wireless, a relatively emerging market, can be difficult to predict. However, several trends can fuel the growth of ZigBee technology. Currently, the frequency used in Zigbee networks is 2.4GHz band. If the IEEE 802.15.4 standard changes as scheduled, there will be performance benefits in sub-1 GHz bands available in the Zigbee standard. Government regulations are also moving towards open access to bands other than 2.4GHz. There is also a growing need for low-cost platforms that support millions of devices with wireless connectivity.

ZigBee network users and developers are always looking for solutions that can reduce development or implementation time, and are easy to use and cost-effective. Provided with an intuitive development environment that includes software, hardware, licenses, and reference designs for turnkey product development, developers and manufacturers can shorten time to market.

ZigBee networks can be designed to be scalable, flexible, secure, and use only minimal power. A ZigBee mesh network has already been demonstrated, consisting of more than 100 nodes. Ultra-long battery life is also a key feature of the ZigBee network, which can be used for up to 20 years on a single Li-ion battery. Great flexibility in high-performance processors requires Ethernet and USB connectivity. Location awareness can be integrated into the ZigBee network and includes two ZigBee-enabled Personal Area Network (PAN) users, as well as awareness of mobile nodes in fixed networks such as security badge movement within buildings with ZigBee chips. It can also recognize the movement of the network itself, such as mutual information exchange. The same is true for all wireless networks, but security is critical in situations such as logging in to a private network.

2. Power Line Communication

PLC (Power Line Communication) refers to the communication of data through the power line, also called power line communication (電力線通信). This is a service that enables high-speed use of voice, data, and the Internet by plugging the power cable into the socket of a home, office, or ship. It can be a home network that connects all information devices in the home such as a television, a telephone, and a personal computer.

If PLC is used, data transmission paths that have been complicated by wired television networks, telephone lines, and optical networks have been reduced to one power line, and installation is easy because only a separate device such as a modem or a system that distributes power and communication data is required. While 85 percent of the world's population currently uses electricity, only 12 to 15 percent of its Internet connections, such as telephone lines and high-speed networks. In this regard, the economic value of PLCs will increase rapidly if it is possible to transfer data quickly using power lines already installed inside ships without laying another optical or coaxial cable. In addition, using PLC, not only Internet service and network construction, but also remote control of power line-based intelligent home appliances, remote meter reading such as meter, remote control of various electric machines, etc., are possible.

3. Router

A router is a device that reads the address of a destination contained in transmission information (packet) and transmits it to another communication network using the most appropriate communication path when connecting and transmitting information by connecting a LAN. It is a necessary equipment when accessing the Internet, and it is a core communication equipment that provides a role of setting a path for transmitting information in a communication network operated by different protocols.

In addition to the bridge function that connects the network simply, the router recognizes the other network according to the route allocation table and allocates the route, and determines the destination (node) in the other network or the network to which it is connected based on the received packet. Selects the most efficient route and sends the packet. It controls the communication flow and performs various communication network management functions such as configuring various auxiliary communication networks in the communication network.

The advantage of the router is that it enables the communication environment to be set up so that the routing method can be decided according to the management policy to improve the performance of the entire network. In addition, since the communication method is automatically determined according to standard logic, it is easy to maintain, and regardless of the communication method, a large-scale communication network can be easily configured, and traffic (traffic) can be distributed along various paths. However, since the initial configuration is difficult and depends on a specific protocol, various protocols are difficult to support, sub-protocols are not supported, and functions are complicated, and thus the price is expensive.

4.Radio Frequency IDentification

An RFID (Radio Frequency IDentification) system is a kind of wireless communication system composed of an RFID tag, an antenna, and a reader / writer. Here, the RFID tag is attached to an article or the like and performs wireless communication with an antenna fixed to the ground or a building. At this time, the reader controls communication between the antenna and the RFID tag or performs protocol exchange between the RFID device and a higher-level device such as a computer. Many modern readers have built-in antennas.

An RFID tag is one element of an RFID system, which simultaneously requires three conditions: i) to be portable, ii) to store information in an electronic circuit, and iii) to communicate by contactless communication. do.

An RFID system is used for the purpose of matching information on an object with an RFID tag. That is, when the product exists, the necessary information can be extracted from the very place where the product exists, and further, new information can be written if necessary.

As such, the use of an RFID system saves time for inquiring and receiving information from an information center. In such an RFID system, it is easy to distribute information and simplify the information system. In particular, automatic recognition means used in automatic processing lines have to withstand harsh environments, such as vibration and shock, water and oil, high temperatures and dust, where RFID systems are suitable. In addition, RFID systems are better suited when multiple product lines are often produced on a single production line and the information needs to be exchanged frequently.

RFID tag was used as a substitute for bar code in the initial logistics stage such as production process or distribution center, but it is gradually expanding to the final logistics stage such as distribution stage, and is currently focused on factory automation (FA) field. It's worth it.

The RFID tag is largely composed of a chip and an antenna, and is completed through an encapsulation process to protect it. RFID tags have various shapes, such as credit cards, bars, coins, and labels, depending on the encapsulation method, so that the user can select a shape suitable for their purpose of use.

5. Monitoring of various equipments in the ship

There are many equipments such as controllers, measuring instruments, electric motors, and pumps inside the ship. However, ships do not monitor all the equipment, but only the most important equipment is monitored by wire, and other equipment only replaces or maintains when a failure occurs due to patrol or problem of an operator. It also suffers from equipment malfunctions until the equipment is replaced.

However, since ships spend most of their time away from land, they often cannot easily receive support from non-operational equipment, and often have to solve their own problems. There is a possibility of serious problems that lead to large accidents such as fire or sinking due to malfunction of the equipment.

Therefore, monitoring and management of equipment are essential to prevent this. However, due to the large number of equipment, a large amount of time and money are required for a person to grasp each state of the equipment. Therefore, only a few important equipments are managed. But it's also true that this can be just as bad as a broken piece of equipment.

At this time, if ubiquitous technology using Zigbee, power line communication, etc., can monitor them in real time in the designated monitoring room and save the data, it can be more economically and accurately predict and cope with the failure of equipment and prevent accidents in advance. There will be.

On the other hand, various equipment inside a ship can be replaced only when it is completely broken. If you replace only a few parts before the equipment completely fails, the rest of the normal parts can be used. If you replace some old parts in a timely manner using the above ubiquitous technology, you can save a lot of maintenance costs.

The present invention solves the above problems and overcomes the irrationality of the conventional passive equipment management system in the ship, RFID tag and temperature, current, vibration sensor node easy to install and various equipment located in each area of the ship Each member of the crew can easily identify the equipment status in the steering room and the designated area of the vessel, and use the past history information to determine the equipment status. It is an object of the present invention to provide a system and method for monitoring the abnormal operation of ship equipment that can reduce the cost of maintenance and reduce the cost of maintenance and solve the problem quickly and easily through accurate cause diagnosis in case of equipment failure.

Other objects and advantages of the present invention will be described below, which are not limited to the matters set forth in the claims and the disclosure of the embodiments thereof, but also to the broader ranges by means and combinations within the range readily recited therefrom. Add that it will be included.

In order to achieve the above object, the present invention provides a wireless communication network in which a sensor node is attached to equipment in a ship, the sensor node senses the state values such as temperature, vibration, current of the equipment in real time; An active tag affixed to equipment in the ship and containing information on the date of receipt, installation, and usage of the equipment; A wireline communication network arranged in a ship, the powerline communication network being connected to the Zigbee communication network by a Zigbee-powerline communication interface module; A router present on a ZigBee communication network in an area in which the equipment is present, the router reading a signal of an active tag and transmitting it to a ZigBee-Powerline communication interface module; It provides the interface between Zigbee communication network and power line communication network to interconnect power line communication between Zigbee communication and non-wireless communication areas in the area where wireless communication is possible in the ship, and signals of sensor nodes transmitted through Zigbee communication network. A Zigbee-powerline communication interface module for transmitting information and signal information of an active tag received from a router to a powerline communication network; And a control computer connected to the power line communication network and including a control computer for determining whether the equipment is in abnormal operation according to the sensor node and the signal information of the active tag received through the power line communication network.

A method implemented in the system, comprising the steps of: deploying a ZigBee communication network, which is a wireless communication network, in a region where equipment is installed by attaching a sensor node that senses state values such as temperature, vibration, current, etc. of equipment in a ship in real time; Step 320, a Zigbee-powerline communication interface module is installed to interconnect a powerline communication network and a Zigbee communication network that are previously arranged in a ship; Step 330, installation of a router on a Zigbee communication network in an area in which the equipment exists; Step 340 of attaching an active tag to the device, the active tag containing information on a receipt date, an installation date, and a usage period of the corresponding device; Step 350, the router reads the signal of the active tag and transmits it to the Zigbee-Powerline communication interface module; A 360 step of transmitting, by the Zigbee-powerline communication interface module, the signal information of the sensor node transmitted through the Zigbee communication network and the signal information of the active tag received from the router to the powerline communication network; And a step 370 of determining, by the control computer connected to the power line communication network, whether the equipment operates abnormally according to the signal information of the sensor node and the active tag received through the power line communication network. .

In addition, the present invention is a invention in which the 'router' is replaced by the 'RFID reader' among the components of the present invention, the sensor node is attached to the equipment in the vessel as a sensor node state of the equipment such as temperature, vibration, current Zigbee communication network for sensing the value in real time; An active tag affixed to equipment in the ship and containing information on the date of receipt, installation, and usage of the equipment; A wireline communication network arranged in a ship, the powerline communication network being connected to the Zigbee communication network by a Zigbee-powerline communication interface module; An RFID reader present on a ZigBee communication network in an area in which the equipment is present and reading a signal of an active tag and transmitting it to a ZigBee-Powerline communication interface module; It provides the interface between Zigbee communication network and power line communication network to interconnect power line communication between Zigbee communication and non-wireless communication areas in the area where wireless communication is possible in the ship, and signals of sensor nodes transmitted through Zigbee communication network. A Zigbee-powerline communication interface module for transmitting information and signal information of an active tag received from a router to a powerline communication network; And an abnormal operation monitoring system of ship equipment, which is connected to a power line communication network and includes a control computer that determines whether the equipment operates abnormally according to signal information of a sensor node and an active tag received through the power line communication network.

A method implemented in the system, the method comprising the step of placing a ZigBee communication network which is a wireless communication network in the area where the equipment is installed by attaching a sensor node for sensing the real-time value of the state, such as temperature, vibration, current of the equipment in the ship; Step 420, installing a Zigbee-powerline communication interface module to interconnect a powerline communication network and a Zigbee communication network that are previously arranged in a ship; Step 430, installing an RFID reader on a Zigbee communication network in the area where the equipment is present; Step 440 of attaching an active tag to the device, the active tag containing information on a receipt date, an installation date, and a usage period of the corresponding device; Step 450, the RFID reader reads a signal of the active tag and transmits it to the Zigbee-powerline communication interface module; Step 460, the Zigbee-powerline communication interface module transmitting the signal information of the sensor node transmitted through the Zigbee communication network and the signal information of the active tag received from the RFID reader to the powerline communication network; And a step 470 of determining, by the control computer connected to the power line communication network, whether or not the equipment operates abnormally according to the signal information of the sensor node and the active tag received through the power line communication network. .

According to the present invention, using a ZigBee wireless sensor node, a power line communication modem, and an RFID tag that can be easily used on land, it is possible to identify and manage the status of various equipments in a ship in real time, and to identify and manage the status of equipment. This can lead to a reduction in the number of passengers and an increase in the efficiency of crew equipment management. That is, according to the present invention, the crew can not only cope with the accident in advance by checking the degree of failure of the various equipment in the ship in real time, but also quickly find the equipment in which the problem occurred and cope with it quickly. Maintenance costs are also significantly reduced.

Meanwhile, the present invention uses a small, low-power RFID tag and various sensor nodes, which can be easily installed in equipment, or by using an already installed power line so that the power line modem is used without additional sensor communication network. The advantage is that the system can be easily implemented.

Other effects of the present invention, as well as those described in the above-described embodiments and claims of the present invention, as well as potential effects that may occur within the range that can be easily estimated therefrom and potential advantages that contribute to industrial development It will be added that it will be covered by a wider scope.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the following will describe a preferred embodiment of the present invention, but the technical idea of the present invention is not limited thereto and may be variously modified by those skilled in the art.

The present invention relates to a system and method for monitoring abnormal operation of various equipment in a ship using Zigbee wireless communication and power line communication, according to the present invention attached to each equipment (various controllers, measuring instruments, electric motors, pumps, etc.) in the ship The signal information of the sensor node and active tag is transmitted to the steering room via the Zigbee communication network and the power line communication network so that the ship operator can determine in real time whether or not an error has occurred in the operation of each equipment.

Since ships have many compartments composed mostly of steel, it is not possible to implement the information communication system in the ship that consists of only Zigbee wireless communication, but it is almost impossible to change the structure, such as holes for additional wired network, after the ship is built. There is a limitation in implementing an in-ship information communication system consisting of only power line communication, and the present invention uses a ZigBee wireless communication in each compartment such as an engine room capable of ZigBee wireless communication and uses a power line communication to a central control system. By introducing the method, the system overcomes the special structural limitations of the ship and implements a system that enables rapid information communication in the ship.

Hereinafter, the present invention will be divided into a case of taking a router (type 1) and an RFID reader (type 2) as a description element for reading an active tag.

1. Type 1

The present invention provides a wireless communication network to which a sensor node is attached to equipment in a ship, the sensor node sensing a state value such as temperature, vibration, current, etc. of the equipment in real time; An active tag affixed to equipment in the ship and containing information on the date of receipt, installation, and usage of the equipment; A wireline communication network arranged in a ship, the powerline communication network being connected to the Zigbee communication network by a Zigbee-powerline communication interface module; A router present on a ZigBee communication network in an area in which the equipment is present, the router reading a signal of an active tag and transmitting it to a ZigBee-Powerline communication interface module; It provides the interface between Zigbee communication network and power line communication network to interconnect power line communication between Zigbee communication and non-wireless communication areas in the area where wireless communication is possible in the ship, and signals of sensor nodes transmitted through Zigbee communication network. A Zigbee-powerline communication interface module for transmitting information and signal information of an active tag received from a router to a powerline communication network; And a control computer connected to the power line communication network and including a control computer that determines whether or not the device operates abnormally according to the sensor node and the signal information of the active tag received through the power line communication network.

Zigbee communication network is a wireless communication network that is located in the area where wireless communication is possible in the ship. In the case of Zigbee wireless communication, the Zigbee communication system can operate with small size and low power, and can have up to 255 nodes. It has the advantage of easy installation and maintenance compared to other wireless communications. In addition, since the routers hop and exchange data with each other, it is much cheaper and more reliable to transmit the data than if it is properly placed in the ship, so it can be applied to tracking the position of crew members or passengers in the ship. There is a significant advantage.

The sensor node is attached to the ship's equipment. The sensor node senses the state, vibration, and current status of the equipment in real time and transmits the information to the Zigbee-Powerline communication interface module through the Zigbee communication network.

The ship operator can check the status values such as temperature, vibration, and current of the equipment transmitted by the sensor node through the control computer in real time. If the sensing value is out of the normal operating range, the ship operator has an abnormal operation of the equipment. It can be judged that. At this time, the information on what is the abnormal operation equipment, where it is located, or whether the operation history, such as the date of wearing, installation date, usage period, etc. can be checked at the same time through the signal information of the active tag (to be described later).

The power line communication network is a wired communication network disposed in an area where wireless communication in a ship is impossible, and is connected to the Zigbee communication network by a Zigbee-Powerline communication interface module. In case of power line communication, it is the most efficient communication technology that can be used as a backbone network of the entire ship without additional structural changes to existing ships. .

Active tags are attached to equipment on board the ship. Active tags are now very small in card form and can be attached to motors and equipment without problems, and batteries can be used for more than a year. Such an active tag may be made of an RFID tag.

The active tag contains information on the receipt date, installation date, and usage period of the equipment. The active tag continuously transmits the information to the surrounding routers. You can quickly check the type and location of the machine and the operation history.

The router resides on a ZigBee network in the zone where the equipment resides and reads the signal from the active tag and sends it to the ZigBee-Powerline communication interface module.

At this time, the ZigBee-Powerline communication interface module provides an interface between the ZigBee communication network and the powerline communication network to interconnect the power line communication between the ZigBee communication and the areas where the wireless communication is not possible in the ship. More specifically, it receives the signal information of the active tag from the router and plays a role of transmitting the signal information back to the power line communication network.

Since the interior of a ship is blocked by steel, it is rare for interference between antennas in each cabin.However, in case of interference, the transmission output strength of the router is adjusted for each cabin or area containing two or more cabins. It is also possible to track the crew or passenger's location in real time over limited space.

Routers hopping information with each other, when a router reads an active tag, the information hops to a nearby router, and the hopping information moves to a powerline communication transmitter via a ZigBee-Powerline communication interface module. The information travels along the existing powerline network, collected at the powerline communication receiver, and finally collected at the control computer in the central steering room.

If the Zigbee-powerline communication interface module according to the present invention is used as a backbone network by connecting the power line communication between the Zigbee communication in the area capable of wireless communication and the wireless communication is not possible in the ship as a backbone network in the future It can also play an important role in the development of ripple technologies such as wireless-power line communication telephones. And in case of ship, it is configured to have a system that can back up in case of emergency by double or triple facilities and equipment for safety, and it operates on existing communication method at very low cost by using Zigbee-Powerline communication. You can back up your system as it is.

The control computer is connected to the power line communication network to determine whether the equipment malfunctions according to the signal information of the sensor node and the active tag received through the power line communication network. That is, the control computer processes the information from each sensor node and active tag in real time and shows the type, location and operation history of each equipment, and status values such as temperature, vibration and current of the equipment to the ship operator in real time. On the other hand, if the sensing value of the sensor node for a particular equipment is out of the normal operating range is to allow the ship operator to determine that the operation of the equipment.

In this case, the control computer preferably displays the location of the router reading the signal of the active tag on the screen so that the ship operator can intuitively and quickly determine the location of the abnormal operation equipment. In addition, when the abnormal operation of the equipment is confirmed that the control computer 260 is to make an alarm alarm sound in the area, it is possible to quickly and safely protect the crew and passengers from danger.

The control computer saves the date and time and the status of the equipment whenever the abnormal operation of the equipment is confirmed, and establishes a history database on the abnormal operation of the equipment. The ship operator manages and checks the equipment based on the history database. This can be done more efficiently.

On the other hand, the present invention is a method implemented in a system according to the first type, by attaching a sensor node for sensing the state value, such as temperature, vibration, current of the equipment in the vessel in real time to the equipment Zigbee which is a wireless communication network in the area where the equipment is installed Deploying a communication network (310); Step 320, a Zigbee-powerline communication interface module is installed to interconnect a powerline communication network and a Zigbee communication network that are previously arranged in a ship; Step 330, installation of a router on a Zigbee communication network in an area in which the equipment exists; Step 340 of attaching an active tag to the device, the active tag containing information on a receipt date, an installation date, and a usage period of the corresponding device; Step 350, the router reads the signal of the active tag and transmits it to the Zigbee-Powerline communication interface module; A 360 step of transmitting, by the Zigbee-powerline communication interface module, the signal information of the sensor node transmitted through the Zigbee communication network and the signal information of the active tag received from the router to the powerline communication network; And a step 370 of determining, by the control computer connected to the power line communication network, whether the equipment operates abnormally according to the signal information of the sensor node and the active tag received through the power line communication network. .

Detailed technical matters related to the above-described method for monitoring the abnormal operation of the ship equipment are the same as in the case of the system described above, and thus redundant description thereof will be omitted below.

2. Type 2

The present invention is an invention in which 'router' is replaced with 'RFID reader' among the components of the system according to the first type, wherein the sensor node is a wireless communication network in which the sensor node is attached to the equipment in the ship. A Zigbee communication network that senses a state value such as a current in real time; An active tag affixed to equipment in the ship and containing information on the date of receipt, installation, and usage of the equipment; A wireline communication network arranged in a ship, the powerline communication network being connected to the Zigbee communication network by a Zigbee-powerline communication interface module; An RFID reader present on a ZigBee communication network in an area in which the equipment is present and reading a signal of an active tag and transmitting it to a ZigBee-Powerline communication interface module; It provides the interface between Zigbee communication network and power line communication network to interconnect power line communication between Zigbee communication and non-wireless communication areas in the area where wireless communication is possible in the ship, and signals of sensor nodes transmitted through Zigbee communication network. A Zigbee-powerline communication interface module for transmitting information and signal information of an active tag received from a router to a powerline communication network; And a control computer connected to the power line communication network and including a control computer for determining whether the equipment is in abnormal operation according to the sensor node and the signal information of the active tag received through the power line communication network.

As a method implemented in the system according to the second type, by attaching a sensor node that senses the state value, such as temperature, vibration, current of the equipment in the ship in real time to the equipment to place the ZigBee communication network as a wireless communication network in the area where the equipment is installed Step 410; Step 420, installing a Zigbee-powerline communication interface module to interconnect a powerline communication network and a Zigbee communication network that are previously arranged in a ship; Step 430, installing an RFID reader on a Zigbee communication network in the area where the equipment is present; Step 440 of attaching an active tag to the device, the active tag containing information on a receipt date, an installation date, and a usage period of the corresponding device; Step 450, the RFID reader reads a signal of the active tag and transmits it to the Zigbee-powerline communication interface module; Step 460, the Zigbee-powerline communication interface module transmitting the signal information of the sensor node transmitted through the Zigbee communication network and the signal information of the active tag received from the RFID reader to the powerline communication network; And a step 470 of determining, by the control computer connected to the power line communication network, whether or not the equipment operates abnormally according to the signal information of the sensor node and the active tag received through the power line communication network. .

Detailed description of the invention according to the second type is the same as the above-described invention according to the first type, so a redundant description thereof will be omitted below.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 is a schematic diagram schematically showing the structure of the vessel and the position of the equipment in the vessel.

2 is a schematic diagram of a data acquisition and ZigBee-Powerline communication interface module and a backbone network in a ship according to the present invention.

Figure 3 is a schematic diagram of the monitoring system in the steering wheel according to the present invention.

<Description of main parts of drawing>

1: steering room 2: control computer

3: navigation equipment 4: communication equipment

5: crane 6: mooring equipment

7: Engine Room 8: Zigbee-Powerline Communication Interface Module

9: Equipment in the engine room 10: Power line

11: sensor node 12: active tag

13: power line communication modem

Claims (26)

A wireless communication network to which a sensor node is attached to equipment in a ship, the sensor node sensing a state value such as temperature, vibration, and current of the equipment in real time; An active tag affixed to equipment in the ship and containing information on the date of receipt, installation, and usage of the equipment; A wireline communication network arranged in a ship, the powerline communication network being connected to the Zigbee communication network by a Zigbee-powerline communication interface module; A router present on a ZigBee communication network in an area in which the equipment is present, the router reading a signal of an active tag and transmitting it to a ZigBee-Powerline communication interface module; It provides the interface between Zigbee communication network and power line communication network to interconnect power line communication between Zigbee communication and non-wireless communication areas in the area where wireless communication is possible in the ship, and signals of sensor nodes transmitted through Zigbee communication network. A Zigbee-powerline communication interface module for transmitting information and signal information of an active tag received from a router to a powerline communication network; And Control computer that is connected to the power line communication network and determines the abnormal operation of the equipment according to the signal information of the sensor node and the active tag received through the power line communication network. Abnormal operation monitoring system of the ship equipment including. The method of claim 1, The active tag, The abnormal operation monitoring system of the ship equipment, characterized in that the RFID tag. The method of claim 1, The router, An abnormal operation monitoring system of a ship equipment, characterized in that hopping of information between each other. The method of claim 1, The router, Abnormal operation of ship equipment characterized by reading the signal of active tag over the limited space for each zone or area including two or more zones by adjusting the intensity of the transmission output in case of interference between zones where equipment is present Monitoring system. The method of claim 1, The control computer, The abnormal operation monitoring system of the ship equipment characterized in that it displays the location of the router reading the signal of the active tag on the screen. The method of claim 1, The control computer, When the abnormal operation of the equipment is confirmed, the abnormal operation monitoring system of the ship equipment, characterized in that the alarm alarm sounds in the area. The method of claim 1, The control computer, Whenever the abnormal operation of the equipment is confirmed, the abnormal operation monitoring system of the ship equipment, characterized in that the construction of a history database of the abnormal operation of the equipment by storing the date and time, the status value of the equipment. A method implemented in a system according to claim 1, Step 310, placing a ZigBee communication network, which is a wireless communication network, in a region where the equipment is installed by attaching a sensor node that senses state values such as temperature, vibration, and current of equipment in a ship in real time to the equipment; Step 320, a Zigbee-powerline communication interface module is installed to interconnect a powerline communication network and a Zigbee communication network that are previously arranged in a ship; Step 330, installation of a router on a Zigbee communication network in an area in which the equipment exists; A step 340 of attaching an active tag to the device, the active tag containing information on a receipt date, an installation date, and a usage period of the corresponding device; Step 350, the router reads the signal of the active tag and transmits it to the Zigbee-Powerline communication interface module; A 360 step of transmitting, by the Zigbee-powerline communication interface module, the signal information of the sensor node transmitted through the Zigbee communication network and the signal information of the active tag received from the router to the powerline communication network; And Step 370, the control computer connected to the power line communication network determines whether the equipment is abnormally operated according to the signal information of the sensor node and the active tag received through the power line communication network. Abnormal operation monitoring method of the ship equipment comprising a. The method of claim 8, In the step 350, The router adjusts the strength of the transmission output in case of interference between the zones in which the equipment exists and reads the signal of the active tag over the limited space for each zone or for each zone including two or more zones. How to monitor abnormal operation. The method of claim 8, In step 340, Active tag is an RFID tag, the abnormal operation monitoring method of the ship equipment. The method of claim 8, In the step 350, The router transmits a signal of an active tag to a Zigbee-Powerline communication interface module by hopping of information made between each other. The method of claim 8, In the step 370, The control computer monitors the abnormal operation of the ship equipment, characterized in that to display the position of the router on the screen reading the signal of the active tag. The method of claim 8, In the step 370, The control computer monitors the abnormal operation of the ship equipment, characterized in that the alarm alarm sounds in the area when the abnormal operation of the equipment is confirmed. The method of claim 8, In the step 370, The control computer stores the date and time, and the status value of the equipment whenever the abnormal operation of the equipment is confirmed to build a history database of the abnormal operation of the ship equipment, characterized in that the ship equipment. A wireless communication network to which a sensor node is attached to equipment in a ship, the sensor node sensing a state value such as temperature, vibration, and current of the equipment in real time; An active tag affixed to equipment in the ship and containing information on the date of receipt, installation, and usage of the equipment; A wireline communication network arranged in a ship, the powerline communication network being connected to the Zigbee communication network by a Zigbee-powerline communication interface module; An RFID reader present on a ZigBee communication network in an area in which the equipment is present and reading a signal of an active tag and transmitting it to a ZigBee-Powerline communication interface module; It provides the interface between Zigbee communication network and power line communication network to interconnect power line communication between Zigbee communication and non-wireless communication areas in the area where wireless communication is possible in the ship, and signals of sensor nodes transmitted through Zigbee communication network. A Zigbee-powerline communication interface module for transmitting information and signal information of an active tag received from a router to a powerline communication network; And Control computer that is connected to the power line communication network and determines the abnormal operation of the equipment according to the signal information of the sensor node and the active tag received through the power line communication network. Abnormal operation monitoring system of the ship equipment including. The method of claim 15, The active tag, The abnormal operation monitoring system of the ship equipment, characterized in that the RFID tag. The method of claim 15, The RFID reader, Abnormal operation of ship equipment characterized by reading the signal of active tag over the limited space for each zone or area including two or more zones by adjusting the intensity of the transmission output in case of interference between zones where equipment is present Monitoring system. The method of claim 15, The control computer, The abnormal operation monitoring system of the ship equipment, characterized in that the position of the RFID reader reading the signal of the active tag on the screen. The method of claim 15, The control computer, When the abnormal operation of the equipment is confirmed, the abnormal operation monitoring system of the ship equipment, characterized in that the alarm alarm sounds in the area. The method of claim 15, The control computer, Whenever the abnormal operation of the equipment is confirmed, the abnormal operation monitoring system of the ship equipment, characterized in that the construction of a history database of the abnormal operation of the equipment by storing the date and time, the status value of the equipment. A method implemented in a system according to claim 15, Step 410, placing a ZigBee communication network, which is a wireless communication network, in a region where the equipment is installed by attaching a sensor node that senses state values such as temperature, vibration, and current of equipment in a ship in real time to the equipment; Step 420, installing a Zigbee-powerline communication interface module to interconnect a powerline communication network and a Zigbee communication network that are previously arranged in a ship; Step 430, installing an RFID reader on a Zigbee communication network in the area where the equipment is present; Step 440 of attaching an active tag to the device, the active tag containing information on a receipt date, an installation date, and a usage period of the corresponding device; Step 450, the RFID reader reads a signal of the active tag and transmits it to the Zigbee-powerline communication interface module; Step 460, the Zigbee-powerline communication interface module transmitting the signal information of the sensor node transmitted through the Zigbee communication network and the signal information of the active tag received from the RFID reader to the powerline communication network; And Step 470, the control computer connected to the power line communication network determines whether the equipment is abnormally operated according to the signal information of the sensor node and the active tag received through the power line communication network. Abnormal operation monitoring method of the ship equipment comprising a. The method of claim 21, In step 450, The RFID reader reads the signal of the active tag over a limited space for each zone or for an area including two or more zones by adjusting the strength of the transmission output when interference occurs between zones in which the equipment exists. Abnormal operation of the monitoring method. The method of claim 21, In the step 440, Active tag is an RFID tag, the abnormal operation monitoring method of the ship equipment. The method of claim 21, In step 470, The control computer monitors the abnormal operation of the ship equipment, characterized in that for displaying the position of the RFID reader reading the signal of the active tag on the screen. The method of claim 21, In step 470, The control computer monitors the abnormal operation of the ship equipment, characterized in that the alarm alarm sounds in the area when the abnormal operation of the equipment is confirmed. The method of claim 21, In step 470, The control computer stores the date and time, and the status value of the equipment whenever the abnormal operation of the equipment is confirmed to build a history database of the abnormal operation of the ship equipment, characterized in that the ship equipment.

Images