Control and monitoring system AGL-ACMS

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Introduction The computer-based control and for airport lighting from LUCEBIT (: Airfield Ground Lighting Advanced Control and Monitoring System) belongs to the COSAL family, and is an

1 Introduction The computer-based control and for airport lighting from LUCEBIT (: Airfield Ground Lighting Advanced Control and Monitoring System) belongs to the COSAL family, and is an ultra-flexible, reliable, open and scalable system that has been developed in order to meet the increasingly stringent requirements applying at military and civil airports. The clear hardware structure, along with a sophisticated software structure, is simple to operate, and facilitates installation, maintenance and service during the system s whole lifecycle. Centralized, partially distributed, or totally distributed system layouts are possible. Based on the required level of availability, a simple, a partially redundant, or a fully redundant system architecture can be selected. Widely-used standard components make up most of the system, always providing state-of-the-art performance and optimum compatibility with existing and future airport systems. LUCEBIT lighting components, like the SCROLL individual lamp control system or the constant-current regulator, are controlled directly by the ACMS, and equipped with a failsafe function. Third-party systems with parallel interfaces are controlled via standard I/O or special failsafe interfaces with integrated security features. For third-party products with serial interfaces, various field bus options are available (CAN, Modbus/JBus, PROFIBUS-DP, INTERBUS-S ). COSAL Control and Monitoring Networked System Full Redundancy LUCB en 1

2 COSAL Control and Monitoring System overview The ACMS equipment is typically installed in different locations, which may be spread all over the airfield, e.g. control tower, AGL substations, maintenance workshops, offices and so on. Interfaces are often required for the exchange of data with totally different systems such as: METEO systems (CAT level display, RVR measurement) Central UTC timer A-SMGCS computer Technical control and s (TCMSs) Data information systems Remote-service computer Station automation systems Location-based AFL services For this purpose, a widely employed communication backbone is used for the ACMS, based on the Ethernet TCP/IP protocol. If possible, it is advisable to always use glass-fiber cables (10/125µ, segment length up to 10 km) for connecting up to CCMS systems, so as to assure high-speed data communication with optimum protection against outside electrical influences. The 100/10-Mbit/s routers with VLAN suitability possess integrated hubs and in particular a redundancy management function in place of the customary line structure, enabling a glass-fiber ring to be used. This configuration results in superlative system availability. When copper wire is used as a connection between the ACMS system components, xdsl modems are employed, which permit a data transmission rate of up to 2.4 Mbit/s. An automatic adjustment of the line quality and a protection feature against overvoltage are further important characteristics of this point-to-point technology. The UNIX-based ACMS control computer, or alternatively a notebook, and the touch-screens in the various stations are connected directly to the hubs. The CCREs and other AGL substation equipment, plus the standard membrane keyboards (LUCEBIT-ALCPE) or mimic diagrams in the tower communicate via field buses and gateways with the ACMS backbone. UPSs are installed in all ACMS systems for assured mains back-up (usually 15 minutes of emergency mode). They serve simultaneously as mains filters. Controller workplaces The most flexible and most economical way to set up workplaces of this kind is to use touch-panels. A touch-panel is a touch-sensitive sensor screen, on which graphically emphasized parts can be touched so as to execute a predefined function. The touch panel replaces mouse, keyboard and other operator controls, and simplifies control operations substantially. Some of the typical functions are: Control of individual lighting systems Control of predefined lighting patterns using a single key Control of the landing direction Acknowledgement of incoming alarms Checkback signals from lighting circuits Checkback signals from lighting systems Status display of the underlying communication system Event list with history Measured values for the insulation resistance of individual lighting circuits Status information on the control and itself 2

3 Examples for touch-panel Touch-panel screenshots of a civil regional airport with an integrated METEO data display Main view COSAL Control and Monitoring Event list View of measured values Detailed METWEO view LUCB en 3

COSAL Control and Monitoring Touch-panel at an international airport with manual taxiway

guidance Message screen for ongoing and historical alarms 3.

dimensions play a crucial role, we offer a standard control panel.

4 COSAL Control and Monitoring Touch-panel at an international airport with manual taxiway guidance Main view with program selection Individual system control Manual taxiway guidance Message screen for ongoing and historical alarms 3.3 Standard control panel For controller workplaces, where the price and minimized dimensions play a crucial role, we offer a standard control panel. All operator control and display functions are implemented with membrane keys, seven-segment displays and LEDs. A field bus interface is used for communicating with the control system. With this compact-size control panel, too, the airport lighting system can be controlled and monitored without any problems, even up to Cat II/III conditions. 4

5 Visualization system The LUCEBIT visualization system is part of COSAL. It enables all components of an airport lighting system to be grouped together in a single display. It offers dynamically updated objects for all lighting components in overview, detailed, event and alarm displays, and in trends. The operating status of the control and itself, like the status of the network components being used, is likewise visualized. For purposes of maintenance, or in emergency situations, the entire lighting system can also be remote-controlled from the maintenance workplaces or a notebook. Event lists serve to record all operator control actions and malfunction messages. Both predefined and user-parameterizable filter functions facilitate selection and display of relevant events. For outputting process images, plus event and alarm lists, various b/w and color printers are supported. Two different basic systems for visualization are offered: The more complex (but also more flexible) system is designed as a distributed, data-base-oriented client/server multi-user system, with a focus on redundancy, plus flexibility in assigning user rights and in reporting. The user interface runs on the familiar Windows operating system, so as to achieve a high level of acceptance among the operators and the maintenance personnel. The server part of the visualization system runs on UNIX servers so as to assure a maximum of performance and stability.. The simpler visualization system has been designed as a single-user system with similar operator control and display characteristics, in which access rights and the display of operating data have been largely predefined to suit the particular application concerned. It runs on simple PCs, and uses the Windows operating system. Common to both is intuitive operator control and an option for incorporating the user s own modifications or expansions by means of optionally available software tools. Overview displays contain information on the control state of the lighting systems, displayed using dynamic lamp symbols, and of taxiway sections, stop or clearance bars in a schematic depiction, corresponding as closely as possible to the airfield s actual layout. In addition, there are control panels for manually controlling the runway and taxiway systems, and where appropriate the apron lighting, the identification beacon, and various program keys, behind which predefined lighting settings have been filed. There is also an option for implementing a separate table for displaying manually operated taxiway sections. Detailed displays are provided, e.g. to enable individual lamps or taxiway sections to be operated manually under the A-SMGCS for purposes of maintenance or also in emergencies. All lighting components in the AGL substations are likewise displayed dynamically. For each series circuit controller, the ongoing control state can be read off, for example, as can the setpoint brightness, the ongoing series-circuit current and also the insulation resistance. Event and alarm messages are displayed in the form of tables. For each event, a special treatment can be defined, which decides how future, present or past alarms are to be processed. The user is additionally provided with a multiplicity of filter settings, sorting criteria and time ranges. The visualization system is rounded off by setting options for printing out data, backing up data, and also for redundancy mode. COSAL Control and Monitoring LUCB en 5

COSAL Control and Monitoring Detailed displays Remote maintenance interface In the event

mobiles using voice and text messages (SMS).

An XML-based WEB interface provides an option for dialing swiftly into the system via a

Operator control actions are also possible.

6 COSAL Control and Monitoring Detailed displays Remote maintenance interface In the event of system malfunctions, the maintenance staff can be informed automatically over their mobiles using voice and text messages (SMS). The interfaces required for this purpose are provided. An XML-based WEB interface provides an option for dialing swiftly into the system via a modem in emergencies and retrieving the control state in simplified form. Operator control actions are also possible. The interface is likewise used by LUCEBIT s service team in order to upload updates, carry out preventive remote maintenance or assist in trouble-shooting. From top to bottom: overview, details, AGL substation, alarm list 6

Control System for Airfield Lighting System Description. Power supply Switching Controlling Regulating Monitoring Visualizing Logging

Control System for Airfield Lighting System Description Power supply Switching Controlling Regulating Monitoring Visualizing Logging Airport Stuttgart COSAL has been developed specifically for use at airports