ARM-based GPS (global positioning system) signal resolving system

Abstract

The invention discloses an ARM-based GPS (global positioning system) signal resolving system comprising an ARM chip, a GPS chip and first to fifth resistors. The first resistor and the second resistor are 2000 ohms in resistance; the third to fifth resistors are 1000 ohms in resistance. A PA2 / USART2_TX / ADC12_IN2 / TIM2_CH3 pin of the ARM chip is connected with one end of the second resistor and one end of the third resistor; a PA3 / USART2_RX / ADC12_IN3 / TIM2_CH4 pin of the ARM chip is connected with one end of the first resistor and one end of the fourth resistor; the other end of the first resistor and the other end of the second resistor are connected and then grounded; the other end of the third resistor is connected with an RX pin of the GPS chip; the other end of the fourth resistor is connected with a TX pin of the GPS chip; a VCC pin of the GPS chip is connected with one end of the fifth resistor; the other end of the fifth resistor is connected with an external power supply; a GND pin of the GPS chip is grounded. The system has the advantages that GPS signals are solely processed by the ARM, operating load of a core processor of a small-sized unmanned vehicle system is reduced, and the operating efficiency of the core processor of the small-sized unmanned vehicle system is improved.

Description

technical field [0001] The invention relates to the field of small unmanned aerial vehicle controllers, in particular to an ARM-based GPS signal calculation system. Background technique [0002] In recent years, civilian small UAVs have sprung up like mushrooms at home and abroad. Small unmanned aerial vehicles are widely used in aerial photography, spraying pesticides, medical assistance and other fields. They have the advantages of simple mechanical structure and relatively low cost, but they are also unstable and difficult to control when flying, and they are prone to crash due to rollover. And other shortcomings, so an automatic controller and a navigation system are needed to control the flight attitude. The core processor of the small UAV needs to analyze and process the data of the inertial navigation system and the satellite navigation system, run the control algorithm in real time, and give the control signal. In view of the fact that the UAV autonomous flight con...

AI Technical Summary

Problems solved by technology

In view of the fact that the UAV autonomous flight control system has high requirements for computing power and real-time performance, the core processor of the existing small UAV control system has a heavy workload, and the utilization of pins tends to be saturated, which is not conducive to the realization of more complex Algorithms and function expansion, which limits the upgrade and scalability of small UAV control systems

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