1. Introduction
Disasters often result in significant property damage and pose serious threats to human lives. Timely access to critical information from the disaster site, combined with immediate response actions, can significantly reduce the impact of such events and help protect people and their belongings. This project aims to develop an interactive intelligent robot based on PIC32 microcontrollers, capable of performing disaster detection and rescue operations in various emergency scenarios.
The robot is designed with a flexible configuration of peripheral modules, allowing it to be adapted for use in other areas such as industrial automation, environmental monitoring, and smart community management. By integrating advanced wireless communication and sensor technologies, this system provides a reliable solution for remote operation and real-time data collection in hazardous environments.
2. Demand and Function Analysis
To create an effective interactive intelligent robot, the system must allow users to remotely control the robot through wireless communication via a PC. The core requirements include:
1. Upon power-up or reset, the upper computer program and lower controller should automatically configure and start operating normally.
2. Users should be able to send commands from the PC at any time to request the robot to return environmental data such as temperature, humidity, and panoramic images.
3. The PC interface should display the returned sensor data and respond accordingly, providing real-time feedback to the user.
4. Based on the panoramic image received from the robot, users should be able to reconstruct the scene and plan appropriate actions, such as guiding the robot along specific routes or initiating targeted responses.
3. Related Technologies and Principles
Host Computer Programming
The host computer software is developed using Visual C++ 6.0. It utilizes API functions and MSComm controls to establish communication between the PC and the robot's microcontroller.
Wireless Communication
The system employs the nRF24L01 module, a single-chip wireless transceiver that operates in the 2.4–2.5 GHz ISM band. This chip includes a frequency synthesizer, enhanced mode controller, power amplifier, crystal oscillator, modulator, and demodulator. It supports configuration via SPI, allowing adjustments to output power, channel selection, and protocol settings.
The nRF24L01 offers low power consumption—9.0 mA in transmit mode at -6 dBm and 12.3 mA in receive mode—making it ideal for battery-powered applications.
4. System Design and Implementation
The overall block diagram of the system is illustrated in Figure 1:
Figure 1: System Overall Structure Block Diagram
AC power supply is a kind of power supply that converts the input mains or DC input into a pure sine wave output after AC-DC-AC or DC-AC conversion. The ideal AC power supply is characterized by stable frequency, stable voltage, zero internal resistance and pure sine wave output voltage wave (without distortion). Mainly used for power grid simulation tests conducted by various electrical appliance manufacturers on electrical appliances according to the voltage/frequency requirements of different countries, various AC motors, AC transformers, aircraft & mechanical equipment and other electronic devices that require pure, regulated and frequency-stabilized output.
Our AC power supply mainly includes three types
1. AC Power Supplies converting the input mains AC by AC-DC-AC, output voltage and frequency are stable and adjustable with pure sine wave output waveform, so called: Variable Frequency AC Power Supplies.
2. AC Power Supplies converting the DC output of the battery and other DC equipment by DC-AC, giving an AC sinusoidal output with stable output voltage and frequency. so called: Inversion AC Power Supplies.
3. AC Power Supplies converting the input mains AC by AC-DC-AC, giving a variable voltage AC output at constant 400Hz output frequency ultra-high output frequency stability. so called: Intermediate Frequency AC Power Supplies.
4. According to the difference in the number of output phases, the AC Power Supplies can be divided into single-phase output AC power supplies and three-phase output AC power supplies.
Different from Variac and AC voltage regulators, our AC power supplies support the setting of output voltage and frequency and has superior high precision, high stability, and high efficiency stable frequency AC output, not only for AC power conversion but also for AC high precision test purpose.
Through the friendly operation panel, you can read the output data such as output voltage, output current, output power, power factor, etc., providing accurate data records for your test, and can add RS485 interfaces as standard, following the MODBUS-RTU international communication protocol, which can realize remote control and operating status monitoring of the power supplies.
Our AC Power Supplies have comprehensive protection functions, such as: over voltage, over current, over temperature and short circuit protections, which can protect the AC power supplies and DUT from damages.
AC Power Sources, AC Sources, AC - AC Power Supplies, DC - AC Power Supplies, AC Switching Power Supplies
Yangzhou IdealTek Electronics Co., Ltd. , https://www.idealtekpower.com