RU2160930C1 - System for operational tracking and control of airfield transport - Google Patents

Abstract

FIELD: controlling airfield vehicles using satellite positioning technologies. SUBSTANCE: system has vehicle-mounted on- board complex incorporating on-board controller connected to navigation receiver which is equipped with navigation antenna and also to power pack and to radio station equipped with transceiver antenna; communications and channel control subsystem incorporating radio station with transceiver antenna and power pack; aerodrome control center with main controller workstation. On-board complex is provided with vehicle condition control unit whose output is coupled with input of on-board controller. Communications and channel control subsystem is provided with differential correction unit incorporating navigation antenna, communication controller whose input/output is coupled with radio station and outputs are connected to power pack and differential correction unit. Control center has lock and server with data base memory. Inputs/outputs of lock are coupled with those of communication controller, server, and main workstation of controller. EFFECT: improved efficiency and safety of airfield transport tracking and control. 10 cl, 17 dwg, 2 tbl

Description

 The invention relates to the field of control of land vehicles at the airport using satellite positioning technology.

 A known system for controlling the ground movement of aircraft (aircraft) and ground vehicles (TS), which allows for an emergency stop of an aircraft or vehicle when attempting an unauthorized exit to the runway of an airfield. The system determines the location of the aircraft and the vehicle using automatic sensors, turns on the stop barrier, warns the intruder via a radiotelephone, and includes light-signal tracking devices. When an unauthorized crossing of the stop barrier is stopped, automatically, at the sensor’s signal, pulsed floodlights are installed, which can be used to block the pilot’s field of vision, and the sound and light alarms are automatically turned on at the control room (see RF application N 94005903, class G 08 G 5/06 , publ. 1995) - an analogue.

 A disadvantage of the known system is the lack of information at each moment of time about the location of the vehicle, the routes of their movement, the speed of the vehicle, the state of the vehicle, the timing of various work and their technological schedule of work, which reduces the efficiency of vehicle control, does not provide objective information about the state of the vehicle and, thereby, the safety of operations on flight maintenance at the airport is reduced.

 There is also a known system for operational tracking and control of aircraft (aircraft) and ground vehicles (TS) of an airport, including an on-board complex installed on a vehicle, containing an on-board controller connected to a navigation receiver equipped with a navigation antenna, with a power supply unit and with a radio station with a reception transmitting antenna, a subsystem for communication and control of channels, containing a radio station with a receiving and transmitting antenna and a power supply, and a dispatch center (DC) with the main workplace of the dispatcher (RMD ) (see US patent N 5867804, CL G 06 F 163/00, published. 02.02.99) - the prototype.

 The disadvantages of the known system are the excessive complexity of the tracking and control algorithms of ground vehicles and the high cost of implementing the system due to the direct transfer of airborne aircraft equipment and methods for solving problems in the air to ground equipment, oversaturation of dispatchers with information due to the use of information display facilities of air control terminals traffic (ATC). In addition, there is subjectivity in obtaining information about the nature of the work performed and the condition of the vehicle, which is why its reliability is low. There is no information at each moment of time about the state of the vehicle and the timing of their various work in accordance with the technological schedules for servicing the aircraft and the daily flight plan (due to the lack of reference), as well as an increase in the time in determining the current coordinates of ground vehicles, which also affects management decision making, reducing security.

 The objective of the patented system is to increase the efficiency and safety of tracking and control of ground vehicles and reduce the cost of implementing the system, as well as increase the reliability of information about vehicles, eliminate subjectivity in obtaining information and improve the quality of work carried out by ground vehicles for servicing aircraft and passengers. In addition, the task of the system is to ensure the receipt, transmission, storage, analysis and processing of information on the performance of work by ground vehicles and controllers for aircraft maintenance control.

 This task is achieved by the fact that in the operational tracking and control system of ground vehicles (TS) of the airport, including an on-board complex installed on the TS, containing an on-board controller connected to a navigation receiver equipped with a navigation antenna, with a power supply and with a radio station equipped with a receiver- transmitting antenna, a subsystem for communication and control of channels, comprising a radio station with a transmitting and receiving antenna and a power supply unit and a dispatch center (DC) with the main workplace of the display Chera (RMD), unlike the prototype system, the on-board complex is equipped with a vehicle status control unit, the output of which is connected to the input of the on-board controller, the communication and channel control subsystem is equipped with a differential correction unit with a navigation antenna, a communication controller, the input-output of which is connected to a radio station, and the inputs are with a power supply unit and with a differential correction unit, and the dispatch center (DC) is equipped with a gateway, a server with database memory, and the gateway inputs and outputs are connected to the communal inputs and outputs station controller, server and main RMD.

 And also the fact that the on-board controller includes a microprocessor with input and output buffers and non-volatile memory and a liquid crystal indicator or keypad connected to the microprocessor through the controller.

 As well as the fact that the vehicle condition monitoring unit is made in the form of sensors for turning on / off the ignition, opening and closing doors, raising and lowering the elevator to a predetermined height, weight of the cargo, touching the side of the aircraft, entering and leaving the work area, the amount of pumped fuel and water when refueling the aircraft, the vehicle’s contact with the front landing gear of the aircraft wheels, violation of the integrity of the vehicle’s avionics, distance to the object and / or cargo packaging integrity.

 And also by the fact that the vehicle power supply is connected to the on-board controller through the vehicle ignition lock.

 And also by the fact that the connection of the inputs and outputs of the onboard controller and the communication controller with the corresponding radio stations is carried out through modems.

 And also by the fact that the communication of the inputs and outputs of the gateway with a communication controller, server and RMD is carried out through a local Ethernet network.

 And also the fact that the transmit-receive antennas of the radio stations of the on-board complex and the communication and control subsystems of the channels are made in the form of VHF antennas.

 As well as the fact that the DC is equipped with at least one additional RMD.

 And also the fact that the number of RMD corresponds to the number of technical means according to their functional purpose.

 As well as the fact that the maintenance center contains the dispatcher RMD, the RMD for the management of autolifts, the RMD for the management of buses and ramps, the RMD for the management of tankers, tractors and water tankers.

 In FIG. 1 presents a system of operational support and control of ground vehicles (TS) of the airport, implementing the patented method.

 In FIG. 2 - structure of the hardware-software complex of the system.

 In FIG. 3 - temporary technological schedule of after-flight service of the aircraft.

 In FIG. 4 - operation algorithm of the RMD dispatcher.

 In FIG. Figures 5-17 show the images on the RMD display during operator operation.

 The operational support and control system of the airport vehicle consists of the on-board complex 1, the communication and control subsystem of channels 2 and the application subsystem 3. The communication between the application subsystem 3 and the communication and control subsystem of channels 2 is carried out via a local area network (Ethernet), the communication between the on-board complex 1 and the communication and control subsystem of channels 2 — on a dedicated digital radio channel (VHF band).

 On-board complex 1 is installed on each vehicle and consists of an on-board controller 4, which is a microprocessor 5 (MP) with input 6 and output 7 buffers and non-volatile memory 8 (FLASH). As MP 5, for example, Microchip Technology Inc: PIC 16 C 77 X Family can be used. MP 5 through a modem 9 is connected to a radio station 10, for example, GM350, with a VHF antenna 11 and with a multi-channel navigation receiver 12 GPS with a navigation antenna 13. To the input buffer 6 MP 5 is connected to the vehicle status control unit 14 and the onboard power supply 15 voltage 8 -32V through the vehicle’s ignition lock 16. The vehicle’s condition monitoring unit 14 is a set of sensors, including, for example, an on-off ignition sensor and / or a door open-close sensor, and / or an elevator lift-lower sensor to a predetermined height, and / or aircraft touch sensor TC, and / or sensor entry and exit from the zone of work, and / or destroying the integrity sensor onboard vehicle equipment, and / or the distance to the object sensor and / or sensor package integrity cargo.

 The output buffer 7 can be connected to a beacon 17, signaling a call for communication and / or crossing a dangerous (forbidden) zone, and / or with a speaker.

 The on-board controller 4 has two options: with a text terminal or with a remote keypad 18.

 The text terminal is designed to provide the driver with paging communication with the dispatcher and display information about the operation of the airborne complex 1. If there is such a terminal, the driver is able to interactively send to the dispatcher (or receive from him) a standard set of messages corresponding to various situations. The text terminal is made in the form of a liquid crystal indicator (LCD) with 4 sealed buttons with backlight, connected through the LCD controller with MP 5.

 Instead of the LCD, MP 5 can have a remote keypad that is designed to perform a limited (tabulated) set of functions, like a text terminal, and is installed on those vehicles on which a text terminal is not provided, and allows messages to be sent in a strictly positional mode.

 MP 5 of the on-board controller 4 controls the radio 10 and the navigation receiver 12, in addition, it automatically turns on the entire on-board complex 1 when the ignition switch 16 of the vehicle is turned on and turns it off after a specified time after the engine is turned off to prevent the discharge of the on-board power supply unit 15, the quality of which is used, for example, a vehicle battery.

 As a multi-channel navigation receiver 12, a GPS receiver can be used, which decodes and processes satellite signals and, thereby, determines the coordinates, speed and course of the vehicle and is designed specifically for mobile applications.

The navigation receiver is built on two Rockwell chips containing most of the necessary GPS functions. Gemini / Pisces MonoPac ^™ contains all the conversion and amplification circuits of a radio frequency (RF) signal. It transmits a signal to the Scorpio circuit. The Scorpio circuit contains an integrated microprocessor and all the necessary hardware for special processing of the GPS signal. Memory and other auxiliary components complement these chips to a complete navigation system.

 The communication and control subsystem of channels 2 includes a communication controller 19, a modem 20, a radio station 21 with a VHF antenna 22, and also a differential correction unit (BDK) 23 with a GPS 24 antenna, a power supply 25 mainly uninterrupted, for example, UPS.

 BDK 23 is a high-precision multi-channel navigation receiver with phase signal processing.

 As BDK 23 is used, for example, differential GPS (DGPS) "Jupiter" (see, for example, US patent N 5600329, CL 342 / 357.03, publ. 04.02.97), which allows you to determine not absolute, but relative geographic coordinates, for example, coordinates relative to some precisely tied reference point on the earth's surface, which increases the accuracy of determining coordinates (correction of systematic error).

 The communication controller 19, implemented on the basis of an IBM PC-compatible computer in an industrial design, provides the reception of a stream of data received over the air and its decoding. The communication controller 19 implements original algorithms, protected by patents N 2070315, N 2095757.

 The application subsystem 3 or, as it is also called, the dispatch center (DC) consists of a gateway 26, which is a device that converts data from external formats into a format perceived by the server 27 connected to the database memory 28, which is intended for archiving and storage data on aircraft maintenance, vehicle traffic routes, vehicle status, and other information. At least one dispatcher workstation (RMD) 28 is connected to gateway 26. The number of RMDs can be any optimal 3-5 places. The dispatcher’s workstation (RMD) is designed to display information about the location and condition of the vehicle in a table form (vehicle identifier, vehicle class, speed, generation of vehicle data, status of discrete sensors, etc.), input of service information (type of vehicle, crew number , route), receiving, upon request from a remote database of the dispatch center (DC), operational information about the location and condition of subordinate vehicles, displaying a graphic diagram of the airport platform area, displaying location I am a vehicle on a graphic diagram, manipulating graphic data (zooming, scrolling, etc.), automatically monitoring events related to vehicle motion parameters and the aircraft maintenance schedule, sound notification to the dispatcher, and changing the type of vehicle image (color of the displayed object) in in case of an alarm message. The interaction of the application subsystem 3 with the communication controller 19, as well as the communication of the gateway 26 with the RMD 28 is carried out on a local area network Ethernet. As a server, for example, a Sun ULTRA 10 server with the "Oracle 8" DBMS operating on it is used.

 Work on the patented method is as follows.

 MP 5 of the on-board controller 4 collects and prepares the navigation information from the navigation receiver 12 and from the vehicle status monitoring unit 13 of the on-board sensors 13, receives and transmits telemetry information, visualizes text messages, and controls the operation of the radio station 10.

 The on-board equipment is connected to the on-board power supply unit 15, for example, to the vehicle battery, through the ignition switch 16 of the vehicle. When the ignition switch 16 of the vehicle is turned on, the signal is sent to one of the inputs of the input buffer 6 MP 5 of the on-board controller 4. Upon receipt of this signal, the MP 5 of the on-board controller 4 generates commands for transferring the navigation receiver (NP) 12 from the "sleep" mode to working, and to turn on the radio station 10 and the backlight LCD or keypad 18.

 When the ignition switch 16 is turned off after a 6-minute delay, the MP 5 of the on-board controller 4 generates commands to put the NP 12 into sleep mode and turn off the radio 10. This operation is necessary to prevent the vehicle’s battery from being discharged.

 NP 12 receives satellite signals from the navigation antenna 13 and provides geographic coordinates about the location of the vehicle with a period of, for example, 1 second. Navigation information is supplemented with service data (measurement mode, the number of satellites observed, etc.) and transmitted to MP 5 of the on-board controller 4 through a bidirectional asynchronous port. MP 5 transmits information about the operating mode of the NP to the LCD 18 for visualization.

 MP 5 of the on-board controller 4 allows the vehicle driver to send a text (formalized) message from a pre-prepared list to DC 3. These messages are stored in non-volatile memory 8 and can be visualized on the LCD 18. Messages are divided into emergency and information. Information messages are grouped in blocks, which allows you to quickly find and select the necessary message for sending to DC 3. The message is selected and sent using the keypad. At the same time, not the message itself, which can be quite long, is transmitted via the radio channel, but only its number, which significantly reduces the amount of information transmitted, increasing the bandwidth of the radio channel.

 MP 5 of the on-board controller 4, which is not equipped with a text terminal, but has a remote keypad, allows you to send only formalized messages: "ALARM", "START", "END", "SIMPLE", etc.

MP 5 generates a data packet for transmission over the air in DC 3, in accordance with the internal protocol for the exchange of digital information. The package includes the following data:
- navigation parameters (coordinates, speed, course, time);
- state of sensors;
- number of the last formalized message selected for sending.

 The packet can be sent automatically or initiated upon request from the DC 3 received via a dedicated digital radio channel between the UHF antennas 11 and 22. Information is exchanged between the MP 5 and the on-board radio station 10 via an analog interface. Upon receipt of the request, MP 5 sends to the radio station 10 directly a data packet or through a modem 9. The transmission process is accompanied by a confirmation of the successful receipt of the packet by the on-board radio station 10 and the successful delivery of the packet to the base radio station 21.

 Upon receipt from the DC 3 package of textual information MP 5 places it in a non-volatile memory 8 and visualizes on the LCD 18.

 The communication and control subsystem of channels 2 is intended for organizing radio communication channels with a vehicle, receiving telemetric information from the vehicle, its primary processing and transmission to server 27 for subsequent display on one of the screens (terminals) of dispatcher workstations (RMD) 28.

 The differential correction block (BDK) 23 is installed at a point with known reference (predefined) coordinates. Comparing the current measurement results from GPS satellites with reference coordinates, the BDK 23 generates correlation corrections based on the method of statistical analysis of random measurement errors, the corrections are transmitted to the communication controller 19 with an interval of 1 second and are used to clarify the current location of the vehicle.

 The communication controller 19 performs joint processing of navigation information about the location of the vehicle and the correlation corrections generated by the BDK 23, and corrects the current geographical coordinates of the vehicle in relative, in order to improve the accuracy of positioning. The accuracy of determining the location of the vehicle is achieved up to 1-3 m (or less than 1 m).

 The application system 3 (dispatch center DC) interacts with the communication controller 19 over the local area network Ethernet and is the ultimate consumer of information. In the memory of the database 28 of the server 27 accumulates all the information about the operation of the vehicle, dispatchers, their interaction with each other, as well as information about the aircraft maintenance schedules. This information can be requested at any time for, for example, analysis of work to make adjustments to traffic control.

 RMD 28 includes a specialized geographic information subsystem that provides the current situation on an electronic map in a two-dimensional coordinate system in a multi-level structure in real time, service capabilities for controlling the work of vehicle crews, means for identifying situations requiring dispatcher intervention, etc.

 The dispatcher manages the movement and performance of the vehicle in accordance with the technological schedules for servicing the aircraft based on the daily flight plan. An example of such a graph is shown in FIG. 3. It includes a list of works on servicing a specific aircraft, in this case IL-96, the start and end times of a specific work, the duration of work, the contractor, as well as the network work schedule in the form of a time chart.

To bind the vehicle to the technological schedule, the dispatcher on the RMD performs the following actions:
1. Selection of the required one from the list of arriving and departing flights, after which a table of the technological schedule for servicing the aircraft of this type becomes available, which sets the time for each operation in accordance with the current data of the daily schedule.

 2. The choice of the necessary operation from the technological schedule.

 3. Activation of the "appointment" mode, after which a list of vehicles that can perform this operation and for which another maintenance operation is not assigned at the same time appears.

 4. The choice of the required vehicle, after which the message body for the vehicle is automatically generated, in which the time of the beginning of the operation and the place of the operation are indicated.

 5. Enter additional information in the message (if any).

 6. Confirmation of the transmission of the control message to the vehicle.

The following vehicle operations are monitored (task means the operation of the technological schedule, which the dispatcher appointed to perform data and vehicles allowed for this operation):
1. Confirmation of acceptance of the assignment - the driver of the vehicle has accepted the assignment and is ready to arrive at the appointed place at the appointed time.

 2. Beginning of the assignment - the vehicle driver arrived at the appointed place and began the assignment.

 3. A signal about idle time due to someone else’s fault - the driver cannot start the task due to the fact that the previous operation of the technological schedule was not completed. This situation leads to a downtime mark in a special table.

 4. Alarm signal - the driver cannot start the task or cannot continue due to the emergency. This situation leads to a note about the alarm in a special table, highlighting the message from this vehicle in red, an audible alarm and removing the vehicle from the job.

 5. End of the task - the driver has successfully completed the task. A vehicle is considered assigned to a task only after the driver confirms the acceptance of the task.

 A message about one of the above operations can be sent from the vehicle to the dispatcher via radio channel or entered by the dispatcher with RMD if it was received in a way that is not automatically controlled by the system.

 The system notes the correspondence of the specified end time of the operation and the real (current) one. When the delay in the start of the task execution, the system marks in red the planned time for the start of the task and calculates the delay value. When the delay in completing the task is completed, the system marks in red the planned time for completing the task and calculates the amount of delay.

 An example of a specific implementation of the patented method.

 When monitoring the condition of the vehicle control, for example: the employment of the vehicle for aircraft maintenance operations; waiting for a task (ignition off); moving to the parking lot; non-aircraft maintenance tasks (refueling, maintenance, etc.); communication state; GPS status travel speed; incl. and off ignition; distance from the aircraft side (for gangways); opening and closing doors (for buses); lifting and lowering the elevator (for elevators); itinerary; opening the box with equipment; time of receipt of the last packet from the vehicle; vehicle status (anxiety, employment); parking lot employment.

 When controlling the movement and operation of the vehicle, any arbitrary command can be typed, for example: bus N_ follow the N_ parking lot; bus N_ help N; take bus N_ on duty at exit N_; etc.

In the memory of MP 5, the on-board controller 4 is "wired", for example, 30 formalized commands (messages) from the vehicle:
- honey is needed. help;
- Security officers are required;
- damage to aircraft;
- accident;
- those. malfunction
- parking task, accepted;
- bus for agent, served;
- with the agent to the parking lot, departed;
- without an agent to the parking lot, departed;
- arrived at the parking lot;
- The beginning of boarding passengers on the bus;
- Arrived at the airport terminal;
- the beginning of disembarkation of passengers;
- landing is over;
- the bus is served to the exit;
- the gangway is installed in the parking lot;
- the ladder is driven away;
- the ladder is left in the parking lot;
- arrived at the station;
- the beginning of movement to the base;
- I accepted the task;
- arrived at the parking lot began loading;
- the download is finished;
- Arrived at the parking lot, proceed to refuel;
- refueling finished;
- Arrived in the parking lot proceeding with the execution;
- completed the task;
- the beginning of the operation;
- end of operation;
- the interference is eliminated.

 Operator actions on the RMD 28.

1.Login
When entering the system at the beginning of the shift, in order to gain access to the system, the operator RMD 28 performs registration. To do this, he selects the Login command of the File menu. An operator registration dialog box is displayed on top of the main program window on the monitor screen (see Fig. 5).

 In the fields of this window you should enter your own (code) name (User Name) of the operator and password (Password). The operator agrees with the accompanying programmer (DB administrator) the code name (using "English" letters) at the beginning of work with the system.

 The password, when entered, is displayed in the form of "*" characters, one "asterisk" for each character entered.

 After entering the name and password, click OK or "Enter". If the input is correct, the Database Login window will disappear and the dispatcher may start working.

 Note: Registration of the operator in the system and establishment of his right of access (identification) to information and to the execution of commands is carried out by the system administrator. The system administrator tells the operator the password that he must use when registering.

The operator may be denied access to the system under the following conditions:
- the name of the operator is not registered in the system;
- another operator logged in with the given name;
- the operator name or password was entered incorrectly.

2. Logout
When you exit the system at the end of the shift, the operator must end the session by canceling his registration in the system. To cancel the registration, execute the LogOff command of the File menu. A dialog box for entering a password is displayed on top of the main program window on the monitor screen (see 6).

 In this window, enter the password used at the beginning of the session. When you enter it, it is displayed in the form of characters "*", one "asterisk" for each character entered.

 After entering the password, click OK or "Enter". If the input is made correctly, the window will disappear and the dispatcher who has finished the shift may leave the workplace. The dispatcher, who is replacing the shift on this RMD, must begin work with registration (see 1. Logging in).

3. Tracking the movement and condition of the vehicle
3.1. View the apron area.

 To view the territory of the apron, the layout and organization of the movement of aircraft, special vehicles and other means and places of parking is used - MS Scheme (electronic map). It occupies the upper part of the main program window and can be presented on a different scale, either in full or in a separate fragment. The presentation is controlled by pressing (selecting) the tool buttons presented on the toolbar (see 7).

 The choice of the tool is carried out with the mouse. The arrow buttons advance the visibility area (window) in the corresponding direction above the "fixed" map. The button zooms in on the map, enlarges the image, preserving the location of its center. The button performs the opposite action, increasing the size of the visible part of the apron and reducing the image scale. The button allows you to see the "whole" map on the screen.

3.2. Vehicle Monitoring
To monitor the position of vehicles, use the map in the main window of the program and the Vehicles tab (see Fig. 8), where the vehicles are indicated on the map by pictograms that correspond to their type (see Fig. 18).

 On the tab below each vehicle corresponds to a row in the right table. The table on the left tab allows you to limit the composition of the vehicle, visible in the right table, to belonging to a particular type.

 If the “sought-after” vehicle is not represented in the visible area of the diagram, it is selected in the table on the Vehicles tab. By the command Show on map, the object selected in the table is placed in the center of the area occupied by the scheme. The scheme does not change the scale, but the scope moves in the desired direction.

 To search for vehicles in the table, the input / selection field (Combo Box) can be used. Find vehicles in the table. The task of the vehicle in it is carried out by entering (typing from the keyboard) his name in this field or by selecting in a scrollable drop-down alphabetically ordered list. When you click the Search button, the "searched" vehicle appears there as a highlighted line. You can immediately click on Show on the map and the vehicle will be in the center of the map.

 3.3. Monitoring the state of the vehicle.

 Monitoring the state of the vehicle is carried out according to their images on the electronic map and according to the state table on the Vehicles tab (see Fig. 8 in Monitoring the position of vehicles).

The table displays the following vehicle status information:
Speed - indicates the current speed of the car (in km / h). If the vehicle speed does not exceed the permissible value, the value is displayed in green. If the vehicle violates the specified speed mode (for example, more than 20 km / h), the speed value is displayed in red and a sound signal is periodically emitted.

 Sensors of the vehicle status monitoring unit 14 - indicates the status of the sensors with which the vehicles are equipped in accordance with table 1.

 When the door sensors are triggered - "Doors 123456" (all doors are open), "Doors 1.3. (Doors 1 and 3 are open). If all doors are closed -" Doors ... ".

 When the box sensor with equipment is triggered, “Box is opened”.

 When the distance sensor is triggered - "To the aircraft more than 1 m" or "To the aircraft less than 1 m".

 Ignition - indicates the status - on or off.

 Time - indicates the time of formation of the last packet from the vehicle. Format - hh. mm

 GPS status - information about the age of coordinate data.

 Vehicle status - general vehicle status - normal, delay, alarm.

When observing the position of the vehicle on the map, the color of the vehicle icon is decrypted as follows:
- black - data received from the vehicle is outdated (received more than 15 minutes ago);
- gray - the vehicle’s ignition is off;
- red - an alarm signal is coming from the vehicle;
- blue - the vehicle is operating normally;
- green - the vehicle’s ignition is off.

 The names of vehicles that have fallen into an emergency situation or are idle due to conflicts on the MS are displayed in the table to the left of the diagram (emergency list). To determine the reason for the vehicle getting into this list, click the Show message button below the list. As a result, in the lower part of the window, the Messages from the Vehicle tab opens, and the message that caused the vehicle to be included in the emergency list will be highlighted in the table on this tab. For vehicles that are not equipped with text terminals, the cause of the alarm situation is determined by voice communication with the driver.

 To exclude the vehicle from the emergency list, the operator can use the Interference button located under the list is eliminated. Vehicles from which the system received a message indicating the restoration of performance are automatically excluded from the emergency list.

 In case of violation of the forbidden zone by the driver of the vehicle, the name of the vehicle is placed in the table in the lower left part of the main window of the vehicle and the line with the number of the vehicle is painted in red. An audible signal sounds. To remove this vehicle from this window, you must move the mouse cursor over a row in the table and click the left mouse button.

If the driver receives an alarm message, the operator is obliged to take actions in accordance with the situation:
1. Medical assistance is needed - calling the medical service of the airport;
2. Security officers are required - a call from the security service and the police;
3. Damage to the aircraft - a call to the relevant services;
4. Traffic accident - call of services corresponding to a traffic accident;
5. Technical malfunction - call the technical assistance service.

 A similar reaction of the system can be realized automatically using a formalized scheme (decision rules) of interaction.

4. Messaging with vehicle drivers
4.1. Sending a message of arbitrary content to the driver of the vehicle
To send a message to the driver of the vehicle of arbitrary content (up to 120 characters), proceed as follows:
1) select the Vehicles tab (see Fig. 9);
2) select the required vehicle in the list of vehicles;
3) in the input field below, type the message text;
4) by pressing the button Send message put the message in the system queue "send";
5) on the Outgoing Messages tab, you can control the result (queued, transmitted, not transmitted).

 4.2. View received messages from the vehicle.

 To view messages from vehicles, the operator selects the Messages from vehicle tab.

 It displays a list of messages received from the vehicle (see Fig. 10).

 The operator must put a mark on the read messages that he has read them. This can be done by clicking the mouse in the Read column, in the line of the corresponding message, or such a mark is put automatically if the operator clicks Read message. By this button, the full text of the message (only the initial part can be visible in the table) is displayed in the right window of the tab.

 Above it is displayed (in blue) information about which vehicle this message came from.

 Standard messages from vehicles, their status and codes are given in the following table 2.

5.1. Tracking the occupancy of parking spaces according to the table
To view information on the parking places, you should select the tab Aircraft parking places (see Fig. 9).

 The tab displays two lists: free parking spaces and parking lots of occupied (reserved) aircraft of specific flights.

 If necessary, obtain data about the vehicle at the parking spot, the operator selects it in the appropriate list and clicks the Show on map button. The area of this parking lot occupies the center of the window with a map.

5. Tracking the occupancy of parking lots
5.2. Tracking the occupancy of parking lots on the map
To show the parking place on the map, the operator must select the line with the MS in the corresponding table and click the Show on map button. The MS will be shown in the center of the map window.

 The parking location on the map is displayed as an octagon.

 At the parking lots where onboard maintenance work is underway, an aircraft silhouette pictogram is displayed.

6. Management and control of the execution of the technological schedule
6.1. View a daily schedule of flights.

 To view the list of flights, the operator selects the Daily schedule program tab (see Fig. 10).

The table displayed in it indicates the flight parameters:
- flight number;
- planned arrival time;
- time of arrival, taking into account the delay;
- board number;
- type of aircraft;
- parking place (if assigned);
- type of flight (local, international, unscheduled);
- arrival or departure.

7. Appointment of the vehicle for servicing the aircraft and issuing control commands to it
Flights assigned to reception / departure appear in the Upcoming Flights table, located in the program window to the right of the map (see Fig. 11).

 The presence of a flight in this table signals the operator about the need to fulfill the assignment of a vehicle to serve this flight.

 To assign a vehicle, the operator selects the Technological schedule tab (see Fig. 14).

 It displays a list of flights and parking locations for which flight service is assigned.

 When choosing a flight and a parking place, the table on the right displays a list of works, the time of their start and end for the selected flight. The flight selection and the opening of the Technological schedule tab itself can be done by double-clicking the left mouse button on the flight line in the Upcoming Flights table.

 For each type of work, the operator must designate a vehicle from among those allowed. Selecting vehicles for the operation, which is indicated in the highlighted row of the right table, click the Assign Vehicle button. The Vehicle Assignment window appears. Here are options for the appearance of this window to perform various operations (see Fig. 15, 16, 17).

 The vehicle in the destination window is selected in the left list. The selection is confirmed by pressing the Select button. An additional field in the Message attributes area allows you to specify the details of the process operation by selecting a specific option or entering additional information (the composition of the attributes depends on the type of operation being performed). After selecting the vehicle, the message text will be displayed on the screen. In it, in some cases, you should insert information that is not available to the system. A message is sent to the driver of the vehicle by pressing the Assign button.

 In order to be able to make replacements assigned to the vehicle operation, the Assignment canceled button is used on the Process schedule tab. In the selected line of the table of technological operations after pressing this button, the fields of the vehicle name and marks / start / end times of the operation are cleared. After that, you can make a new appointment vehicle.

 If the vehicle crew confirms receipt of the task, the vehicle will be marked (on the Technological schedule tab) as assigned for the operation.

 A flight for which the operator made all the necessary appointments is deleted from the Upcoming Flights table. Those flights for which the assignment is made only partially or for which the vehicle assignments were canceled (the schedule has not been completely formed) appear in the Vehicle Destination list (to the right of the diagram, the second from the top). Naturally, for these flights, the operator must also make vehicle appointments.

8. Monitoring the implementation of the technological schedule for servicing aircraft at various MS
The execution of operations is also displayed on the Process Flow tab. Upon confirmation of the assignment of the assignment by the vehicle crew, it will be noted in the line of the table corresponding to this operation that the assignment has been assigned.

 When a message arrives from the vehicle about the start of operation, the status of the operation will change to "running."

 When a message is received from the vehicle about the end of the operation, a mark “completed” will be made in the corresponding row of the table.

 Buttons The task has been received, the operation has begun, the operation has been completed, the vehicle is idle at the bottom of the technological schedule tab, the operator uses to determine the status of the system for performing technological operations in an alternative way. This method is used if, for some reason, messages from the vehicle did not arrive in the system normally, through a radio channel to the server. And the operator received reliable information about the state of the vehicle through other (voice) communication channels. Having selected the operation in the table for which the vehicle has already been assigned, the operator presses one of these on-screen buttons, and the system performs all the actions that must be performed when the message corresponding to the button name comes from the selected vehicle.

 The system controls the timeliness of messages from the vehicle or their imitation, made by the operator. If they are not available at the set time, the flight number appears in the Service Delays table on the Flight Service panel. The fact of occurrence is accompanied by a sound signal.

 The table of the technological schedule for the work performed indicates the time lag of the start / end of work from the time provided for by the regulations. The system monitors the facts of the technological schedule violation and the flight numbers for which such violations take place are shown in the Service Delays table to the right of the map (see Fig. 16).

 Double-clicking with the left mouse button on a row in this table opens the technological schedule tab and shows the operations of the corresponding flight in its right table.

9. Actions in case of system malfunction
If the program of the dispatcher’s workplace is inoperative, the operator needs to contact the system administrator or perform the sequence of actions assigned to him.

Claims (10)

 1. The system of operational tracking and control of ground vehicles (TS) of the airport, including an on-board complex installed on the vehicle, containing an on-board controller connected to a navigation receiver equipped with a navigation antenna, a power supply unit and a radio station equipped with a transceiver antenna, a communication and control subsystem channels containing a radio station with a transceiver antenna and a power supply, and a dispatch center (DC) with the main workplace of the dispatcher (RMD), characterized in that The first complex is equipped with a vehicle status control unit, the output of which is connected to the input of the on-board controller, the communication and channel control subsystem is equipped with a differential correction unit with a navigation antenna, a communication controller, the input-output of which is connected to the radio station, and the inputs - to the power supply and to the differential unit corrections, and the DC is equipped with a gateway, a server with database memory, while the inputs / outputs of the gateway are connected to the inputs / outputs of the communication controller, server, and main RMD.  2. The system according to claim 1, characterized in that the on-board controller includes a microprocessor with input and output buffers and non-volatile memory, which is connected to a liquid crystal display or keypad through the controller.  3. The system according to claim 1, characterized in that the vehicle condition monitoring unit is made in the form of sensors for turning on / off the ignition, opening and closing doors, raising and lowering the elevator to a predetermined height, weight of the cargo, touching the side of the aircraft (AC), entrance - leaving the work area, the volume of fuel and water pumped during refueling, the vehicle’s contact with the front landing gear of the aircraft wheels, the integrity of the vehicle’s avionics, the distance to the object and / or the integrity of the cargo packaging.  4. The system according to claim 1, characterized in that the vehicle power supply is connected to the on-board controller through the vehicle ignition lock.  5. The system according to claim 1, characterized in that the communication of the inputs and outputs of the on-board controller and the communication controller with the corresponding radio stations is carried out through modems.  6. The system according to claim 1, characterized in that the communication of the inputs and outputs of the gateway with a communication controller, server and RMD is carried out through a local Ethernet network.  7. The system according to claim 1, characterized in that the transceiver antennas of the radio stations of the airborne complex and the communication and control subsystems of the channels are made in the form of antennas of the VHF band.  8. The system according to claim 1, characterized in that the DC is equipped with at least one additional RMD.  9. The system of claim 8, characterized in that the number of RMD corresponds to the number of technical means according to their functional purpose.  10. The system of claim 8, wherein the DC contains a central dispatcher RMD, autolift management RMD, bus and gangway management RMD, tanker, tractor and water tanker RMD management.

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