IR Parkade IR Dossier

Proteus simulation and electronics solution

Parkade IR Proteus Dossier

A focused project archive for the parkade IR detection work, count-up/count-down circuit evidence, solution PDFs, Proteus files, NotebookLM material, and installation resources in one clean place.

Student links View resources Counter reference Online sessions NotebookLM videos Contact developer

Project summary

From assignment brief to working simulation.

The folder includes the assignment brief, staged Proteus solutions, exported circuit views, a final complete project file, NotebookLM presentation resources, IR sensor references, and setup notes for Proteus 8 Professional.

Student learning sessions

Start with the online session recordings.

Open session 01 Open stage 2

Online session 01

Important first lesson

This first online session is the main starting point for the student. More learning videos can be added here later as the project grows.

Continue to NotebookLM materials

Stage 2 recording

Online session stage 2

This recording continues the online learning path for the project and focuses on the stage 2 work.

Open on YouTube

NotebookLM anatomy

A parkade counter built from discrete stages.

The generated anatomy material clarifies the project as a discrete parkade automation circuit: IR sensor pairs identify entry and exit movement, conditioning stages shape those signals into count pulses, counters track the current vehicle total, and the output stage drives display and alert indicators.

Dual IR direction sensing 74LS192 decade counting BCD-to-7-segment display path NE555 red alert timing

00-99 counter reference

Counter, display, and LED pin meanings.

Download PDF Download all added files
01

Signal flow

UP or DOWN pulses enter the 74LS192 counter, the BCD outputs feed the 74LS48 decoder, and the decoder drives the common-cathode seven-segment display through current-limiting resistors.

02

BCD mapping

Counter outputs connect as Q0 to A, Q1 to B, Q2 to C, and Q3 to D. The segment states are ordered a b c d e f g, where 1 means ON and 0 means OFF.

03

LED range control

The green, yellow, and flashing red indicators use only the tens counter A and B signals, so each colour remains stable while the ones digit moves inside that range.

UP/DOWN counter signal flow

Shows the path from manual UP/DOWN inputs through the control logic, BCD counter, decoder/driver, resistors, and common-cathode display.

Seven-segment digit patterns

Visual reference for the a-g segment labels and which segments light for each decimal digit from 0 to 9.

Seven-segment display pinout

Compares common-anode and common-cathode pin labels, including segment pins a-g, decimal point, and the shared VCC or GND terminals.

SSD internal configuration

Shows how the LED segments are wired inside common-cathode and common-anode displays, including the decimal-point LED path.

Input control table

UP input DOWN input Counter action Display result
0 0 Holds the current value Same number remains displayed
1 pulse 0 Uses the UP pin and counts upward Display increases by 1
0 1 pulse Uses the DN pin and counts downward Display decreases by 1
1 1 Invalid control condition Display may be unstable

LED range logic

Count range A B Logic Indicator
00-09 0 0 /A AND /B Green LED ON
10-19 1 0 A AND /B Yellow LED ON
20-29 0 1 /A AND B Red LEDs flash through RL1 and NE555
30-39 1 1 A AND B Not selected in the shown logic

Seven-segment output pattern

For the 74LS48 with a common-cathode display, these values drive the a b c d e f g LED segments.

01111110 10110000 21101101 31111001 40110011 51011011 61011111 71110000 81111111 91111011

74LS192 counter

D0-D3 load a preset BCD value when PL is active LOW. Q0-Q3 output the BCD count. UP increments, DN decrements, MR resets to 0000, and TCU/TCD cascade carry or borrow between digits.

74LS48 decoder

A-D receive Q0-Q3 from the counter. QA-QG drive segments a-g through 330 ohm resistors. LT, RBI, and BI/RBO are active-LOW display test or blanking controls.

Logic gates

74LS08 AND gates pass valid UP/DOWN pulses and detect LED ranges. 74LS04 inverter gates produce /A and /B so the circuit can select 00-09, 10-19, and 20-29 cleanly.

Displays and LEDs

The common-cathode displays use segment pins a-g plus a common cathode tied to GND. Green and yellow LEDs show safe and warning ranges, while red LEDs D7 and D8 flash from the NE555 output.

NE555 timer

Pin 3 OUT creates the flashing signal. TR, TH, and DC work with R8 and C2 to set the timing, while RESET enables or stops the timer.

Power and protection

All 74LS ICs need +5 V on VCC and 0 V on GND. Segment and LED resistors limit current, and the relay RL1 interfaces the red-range logic with the flashing LED stage.

Show physical pin number reference

These are the common DIP pin numbers used by the main ICs in the circuit. Seven-segment display pin numbers can vary by display model, so the segment labels a-g and common cathode remain the safest reference.

IC / component Physical pins Pin labels Use
74LS192 15, 1, 10, 9 D0, D1, D2, D3 Parallel preset/load inputs for the counter.
74LS192 3, 2, 6, 7 Q0, Q1, Q2, Q3 BCD output bits sent to the 74LS48 decoder.
74LS192 5, 4, 11, 14, 12, 13 UP, DN, PL, MR, TCU, TCD Count clocks, parallel load, reset, carry, and borrow controls.
74LS48 7, 1, 2, 6 A, B, C, D BCD inputs from Q0, Q1, Q2, and Q3.
74LS48 13, 12, 11, 10, 9, 15, 14 QA, QB, QC, QD, QE, QF, QG Segment outputs that drive display segments a-g.
74LS08 1, 2 -> 3; 4, 5 -> 6; 9, 10 -> 8; 12, 13 -> 11 A, B -> Y Four AND gate input and output groups.
74LS04 1 -> 2; 3 -> 4; 5 -> 6; 9 -> 8; 11 -> 10; 13 -> 12 Input -> output Six inverter input and output groups.
NE555 1, 2, 3, 4, 5, 6, 7, 8 GND, TR, OUT, RESET, CV, TH, DC, VCC Timer power, trigger, output, reset, control, threshold, discharge, and supply pins.
74LS IC power 16 / 8 or 14 / 7 VCC / GND +5 V supply and 0 V ground, depending on the IC package.
Show full 00-99 count table

The table is generated from the same BCD and seven-segment patterns in the PDF. Tens and ones use the same 74LS192 to 74LS48 mapping.

Count Upper BCD Upper segments Lower BCD Lower segments

NotebookLM presentation

Visible PowerPoint slide deck

Open in NotebookLM Explanation video Download PPTX

1 / 12

NotebookLM explanation

Video walkthrough

Watch the uploaded explanation video alongside the slide deck for a narrated overview of the parkade IR project.

Open on YouTube

Dossier trail

How the evidence is organized

01

Sensor evidence

Start with the IR transmitter and receiver references that detect vehicles at entry and exit points.

02

Counting checkpoints

Review the staged Proteus files that shape pulses and feed the up/down counting logic.

03

Display and alerts

Use the exported views to inspect the seven-segment display path and visual status indicators.

04

Final handoff

Open the complete PDS project in Proteus and keep the PDF, PPTX, and supporting documents nearby for verification.

Project library

View, download, and inspect files

Download each Proteus code separately: Complete.pdsprj Download code Stage2-V2.pdsprj Download code Stage2-V2 (1).pdsprj Download copy Question8.pdsprj Download code 2 IR.pdsprj Download code

Proteus project ZIP

Project folder bundle

All Proteus source files, matching solution PDFs, exported images, and references from the Project folder in one download.

Download ZIP

Added materials ZIP

Counter reference bundle

One download containing the added PDF, all four counter/display reference images, and a note with the online session links.

Download ZIP

NotebookLM visual

System anatomy diagram

Generated overview showing the input, counting, display, and alert stages.

Download

Counter visual

UP/DOWN signal flow

Visual walkthrough of the input, 74LS08 control logic, 74LS192 counter, 74LS48 decoder, resistors, and display output.

Download

Display visual

Seven-segment patterns

Compact reference for the a-g segment labels and the lit segment pattern for each decimal digit.

Download

Display pinout

Seven-segment pinout

Common-anode and common-cathode pin labels for segment pins a-g, decimal point, and shared supply terminals.

Download

Display wiring

SSD configuration

Internal LED wiring reference for common-cathode and common-anode seven-segment displays.

Download

NotebookLM PDF

Discrete Parkade Automation

NotebookLM-generated PDF presentation for the parkade IR automation concept.

Download

NotebookLM PPTX

Presentation deck

Visible slide deck extracted from the NotebookLM PowerPoint, with the editable PPTX still available.

View slides NotebookLM Download

PDF reference

00-99 counter tables

Corrected UP/DOWN control, BCD-to-decoder mapping, LED range logic, and pin meanings for the counter circuit.

Download

PDF

Assignment brief

The original project brief supplied with the control-system assignment.

Download

Proteus source

Complete simulation

The final integrated project file for Proteus 8.

Download code

Image

Block diagram

System-level project architecture for the IR sensor control solution.

Download

Solution set

Stage2-V2 bundle

Grouped files: image preview, PDF solution, main Proteus source, and alternate PDS copy.

Download code Download copy

Solution set

Question8 bundle

Grouped files: Proteus source, matching PDF solution, and exported circuit image.

Download code

Solution set

2 IR bundle

Grouped files: Proteus source, PDF solution, exported image, and alternate image copy.

Download code

Reference image

IR sensor module circuit

Reference image for the IR sensor module used in the project context.

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Reference image

IR sensor component

Component reference image included with the Proteus project folder.

Download

Reference image

IR sensors reference

Supporting IR sensor visual reference from the project folder.

Download

Proteus setup

Open the simulations in Proteus 8.

Extract the installer, run setup, apply the supplied license, then validate each stage independently before integrating the full design.

1. Download Proteus 8 Professional.

2. Open the relevant PDS project file.

3. Keep detector, counter, and status stages separate during validation.

4. Avoid Check for Updates because this installation is version-locked.

Proteus download Online sessions