Design and implementation of infrared remote control system for intelligent vehicles

Diagram of Infrared Inaccessible Control Innovation

Infrared farther control innovation employments infrared light waves as the medium for data transmission. It changes over control signals into infrared light signals through an infrared transmitter, which are at that point gotten and demodulated by an infrared recipient, permitting for farther control of gadgets.

Plan of Infrared Inaccessible Control Transmitter

Design Principles

The infrared inaccessible control transmitter comprises of an infrared transmitting diode, encoding circuit, balance circuit, and control supply circuit. The encoding circuit changes over control signals into coded beat groupings, the tweak circuit balances these groupings onto infrared light waves, and the infrared transmitting diode transmits the infrared light signals.

Hardware Selection

- Infrared radiating diode: Select an infrared radiating diode with tall outflow control, limit pillar point, and long life expectancy to guarantee long-distance flag transmission.

- Encoding circuit: Utilize a microcontroller (such as a single-chip microcomputer) as the center of the encoding circuit to execute control flag encoding through programming.

- Balance circuit: Select an fitting tweak strategy (such as beat width tweak PWM) and recurrence to tweak the coded beat groupings onto infrared light waves.

- Control supply circuit: Plan a steady control supply circuit to supply solid working voltage for the infrared transmitter.

Circuit Design

- Encoding circuit design: Design the encoding protocol according to application needs, such as the NEC encoding protocol. Write the encoding program in the microcontroller to convert control signals into pulse sequences.

- Modulation circuit design: Modulate the coded pulse sequences onto infrared light waves using PWM modulation, adjusting the PWM signal's duty cycle to control the infrared light wave's intensity. Design filter circuits to eliminate high-frequency noise.

- Power supply circuit design: Design a stable power supply circuit using linear regulators or switching regulators to ensure the infrared transmitter operates stably.

Software Programming

Write microcontroller programs for encoding, modulation, and power management. Optimize code structure, improve execution efficiency, and reduce power consumption to achieve the functionality of the infrared remote control transmitter.

Design of Infrared Remote Control Receiver

Design Principles

The infrared collector comprises of an infrared accepting diode, demodulation circuit, translating circuit, and control supply circuit. The infrared accepting diode gets the infrared light signals and changes over them into electrical signals. The demodulation circuit demodulates these signals back into coded beat groupings, and the translating circuit translates these arrangements into control signals. The control supply circuit gives steady working voltage for the recipient, guaranteeing its appropriate operation.

Hardware Selection

- Infrared accepting diode: Select an infrared accepting diode with tall affectability, wide ghastly reaction run, and quick reaction speed to guarantee exact gathering of infrared light signals.

- Demodulation circuit: Select an suitable demodulation strategy (such as PWM demodulation) and recurrence to precisely demodulate the coded beat groupings.

- Interpreting circuit: Utilize a microcontroller as the center of the interpreting circuit to execute the translating of coded beat groupings through programming.

- Power supply circuit: Design a stable power supply circuit to provide reliable operating voltage for the receiver.

Circuit Design

- Demodulation circuit plan: The demodulation circuit ought to plan channel and enhancement circuits to make strides the signal-to-noise proportion and affectability, demodulating the electrical signals yield by the accepting diode into coded beat groupings.

- Decoding circuit design: Write the decoding program according to the encoding protocol to decode the pulse sequences output by the demodulation circuit into control signals.

- Power supply circuit design: Use the same power management chips and design schemes as the transmitter to provide stable voltage for the receiver.

Software Programming

Write programs for demodulation, decoding, and power management. Optimize code structure, improve execution efficiency, and reduce power consumption to achieve the functionality of the infrared remote control receiver.

Testing and Optimization

After completing the design of the infrared remote control transmitter and receiver, perform testing and optimization. Confirm whether the capacities meet the plan prerequisites through commonsense tests and make comparing optimizations and enhancements based on the test comes about.

Conclusion

With the fast advancement of car hardware innovation, infrared inaccessible control innovation has been broadly utilized within the car field due to its effortlessness, unwavering quality, and moo fetched. Infrared inaccessible control innovation permits clients to remotely control car capacities such as window lifting and entryway locking through a handheld inaccessible control. This article presents how to actualize the plan of infrared farther control transmitters and recipients in automobiles, counting plan standards, equipment determination, circuit plan, program programming, and testing and optimization.