# US 2022/0034682 A1 · Systems and methods for displaying terminal area procedure charts

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- Number: US 2022/0034682 A1
- Document ID: US20220034682A1
- Status: Published application
- Kind: A1
- Application number: 17/028,036
- Filed: 2020-09-22
- Published: 2022-02-03
- Earliest claimed: 2020-07-29
- Assignees: Honeywell International Inc.
- Applicants: Honeywell International Inc.
- Inventors: Mohan Chandrashekarappa; Sridevi Nagaraja; Subhra Dey; Kiran Venkataramana; Babitha Jajur
- Web page: https://patentgrep.com/patent/US20220034682A1

## CPC

- G01C 23/005: {Flight directors (indicating arrangements specially adapted for rotary gyroscopes G01C19/32)}
- G01C 5/005: {altimeters for aircraft (G01C5/02, G01C5/06 take precedence)}
- G01C 21/20: Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence)
- G01C 23/00: Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
- G08G 5/21: located onboard the aircraft
- G08G 5/54: for approach or landing
- G08G 5/55: for a single aircraft
- G08G 5/76: for monitoring atmospheric conditions
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93})

## Abstract

Methods and systems of generating a data driven digital chart. The methods and systems include retrieving a data driven chart for a requested terminal area procedure chart from a database of data driven charts. The data driven charts describe digital terminal area procedure charts by way of data elements for each terminal area procedure chart including geodetic straights, arcs, text elements and symbols defined with respect to location. Some of the data elements are further defined with respect to altitude values assuming a standard atmospheric temperature value. The systems and methods include calculating compensated altitude values for the data elements of the retrieved data driven chart based on a deviation between the outside air temperature value and the standard atmospheric temperature value. The methods and systems include generating a presentation for a display device of the aircraft of the terminal area procedure chart.

## Claims

### Claim 1

A data driven digital chart display system for an aircraft, the display system comprising:
a display device;
a database of data driven charts describing digital terminal area procedure charts, wherein each digital terminal area procedure chart is constructed by data elements included in the database, the data elements including geodetic straights, arcs, text elements and symbols defined with respect to location, wherein at least some of the data elements are further defined with respect to altitude values assuming a standard atmospheric temperature value;
at least one processor in operable communication with the display device and the database, the at least one processor configured to execute program instructions, wherein the program instructions are configured to cause the at least one processor to:
receive an outside air temperature value;
receive a request to generate and render a display of a terminal area procedure chart;
retrieve the data driven chart for the requested terminal area procedure chart including the data elements;
calculate compensated altitude values for the at least some of the data elements of the retrieved data driven chart based on the altitude values assuming the standard atmospheric temperature value and a deviation between the outside air temperature value and the standard atmospheric temperature value; and
generate a presentation, for the display device, of the terminal area procedure chart including the compensated altitude values for the at least some of the data elements of the retrieved data driven chart.

### Claim 2 (depends on 1)

The data driven digital chart display system of claim 1, wherein the display device is an electronic flight bag display device.

### Claim 3 (depends on 1)

The data driven digital chart display system of claim 1, wherein the display device is a navigation display.

### Claim 4 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes an approach plate.

### Claim 5 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes approach briefing information.

### Claim 6 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes a minimum sector altitude or minimum safe altitude chart.

### Claim 7 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes a circle to land minimums chart.

### Claim 8 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes a segment minimum altitudes chart.

### Claim 9 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes a Notice to Airmen (NOTAM) or Temporary Flight Restriction (TFR) in textual or graphical representation.

### Claim 10 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes a speech transcribed instruction from the Air Traffic Controller (ATC) or the Airline Operations Center (AOC) in textual or graphical representation.

### Claim 11 (depends on 1)

The data driven digital chart display system of claim 1, wherein the terminal area procedure chart includes a depiction of neighboring terminal area aircraft traffic.

### Claim 12 (depends on 1)

The data driven digital chart display system of claim 1, wherein the outside air temperature value is received from at least one of: a temperature sensor, an external source, a manual entry and an application providing predicted or historical outside air temperature values.

### Claim 13 (depends on 1)

The data driven digital chart display system of claim 1, wherein the program instructions are configured to cause the at least one processor to generate and render a display including a selectable option to calculate the compensated altitude values and wherein the program instructions are configured to calculate the compensated altitude values and generate the presentation of the terminal area procedure chart including the compensated altitude values when the selectable option has been selected.

### Claim 14 (depends on 1)

The data driven digital chart display system of claim 1, wherein the program instructions are configured to cause the at least one processor to generate the display including the selectable option, the outside air temperature value and the deviation between the outside air temperature value and the standard atmospheric temperature value.

### Claim 15 (depends on 1)

The data driven digital chart display system of claim 1, wherein the presentation includes a representation of at least one difference between the flight procedures defined in the terminal area procedure chart based on the outside air temperature value and the flight procedure defined in a terminal area procedure chart retrieved from the database.

### Claim 16 (depends on 1)

The data driven digital chart display system of claim 1, wherein the presentation includes the corrected terminal area procedure vertical and/or lateral profile and the terminal area procedure vertical and/or lateral profile retrieved from the database displayed together in a visually differentiated way.

### Claim 17 (depends on 1)

The data driven digital chart display system of claim 1, wherein the presentation includes a corrected terminal area procedure vertical and/or lateral profile that has been corrected from a terminal area procedure vertical and/or lateral profile retrieved from the database, corrected based on the compensated altitude values.

### Claim 18 (depends on 1)

The data driven digital chart display system of claim 1, wherein at least one of the data elements describes a graphical element having a size and/or position set in the database based on an altitude value assuming the standard atmospheric temperature value, wherein the altitude value is temperature compensated by the at least one processor, and the position and/or size of the graphical element is adjusted in the presentation based on the temperature compensated altitude value.

### Claim 19

A method of generating a data driven digital chart, the method comprising:
receiving, via at least one processor, an outside air temperature value;
receiving, via the at least one processor, a request to generate and render a display of a terminal area procedure chart;
retrieving, via the at least one processor, a data driven chart for the requested terminal area procedure chart from a database of data driven charts, the digital terminal area procedure charts constructed from data elements included in the database, the data elements including geodetic straights, arcs, text elements and symbols defined with respect to location, wherein at least some of the data elements are further defined with respect to altitude values assuming a standard atmospheric temperature value;
calculating, via the at least one processor, compensated altitude values for the at least some of the data elements of the retrieved data driven chart based on the altitude values assuming the standard atmospheric temperature value and a deviation between the outside air temperature value and the standard atmospheric temperature value; and
generate, via the at least one processor, a presentation, for a display device of the aircraft, of the terminal area procedure chart including the compensated altitude values for the at least some of the data elements of the retrieved data driven chart.

### Claim 20 (depends on 19)

The method of claim 19, wherein the at least some of the data elements include straights and/or arcs defined with respect to altitude values defined with respect to the reference altitude assuming the standard atmospheric temperature value and the presentation includes a vertical profile or a lateral profile generated using the compensated altitude values for the straights and/or the arcs.
