Smart onboard system

Abstract

The invention discloses a smart onboard system which is characterized in that the smart onboard system includes a wireless communication module, a GPS module, a driving data acquiring module, a calibration module, a smart household control module and a processor. The GPS module acquires a user's current position and map road conditions, calculates predicted time for going through each road section and predicted time for arriving at home. The driving data acquiring module, through a CAN total interface line, acquires real-time vehicle velocity, and obtains actual time for going through the current road section. The calibration module conducts ratio calculation on the actual time for going through the current road section and the predicted time for going through the current section, and obtains a difference coefficient P. The processor receives the predicted time for arriving at home from the GPS module and P value from the driving data acquiring module, and calculates the predicted time for arriving at home after calibration, and again in accordance with the smart household working hours given by the smart household control module, compares the smart household working hours with the predicted time for arriving at home after calibration, and sends a household control instruction through the wireless communication module based on the comparison result, and gives feedback through the wireless communication module.

Description

technical field [0001] The invention relates to an intelligent vehicle-mounted system; it connects to the mobile Internet through a vehicle-mounted home control module, interacts with a smart home control terminal, and completes the management function of home equipment, which belongs to a vehicle-mounted Internet of Things and a vehicle-mounted information system. Background technique [0002] With the rise of Internet of Things technology, smart home has become a research and development hotspot. In recent years, automobiles combined with the Internet of Things have attracted widespread attention as a new direction in the field of intelligent transportation. With the continuous improvement of consumers' requirements for automobile safety, comfort, intelligence, and networking, the development of modern automotive electronics integrates computers, communications, microelectronics, sensors, and network technologies into vehicle design, making automobiles from the traditional...

AI Technical Summary

Problems solved by technology

[0006] 1. There is a deviation between the sending time of the home control command and the actual arrival time, resulting in prematurely cooked food or uncooked food at home

[0007] 2. The navigation information is displayed on the center console, and the driver needs to look away, causing driving danger

[0008] 3. The control buttons are on the center console, and the driver needs to look away, causing driving danger

Due to the influence of ranging delay, climate change and geographical magnetic field, there is an error in GPS positioning accuracy. If the error between the satellite clock and the user clock is 10ns, it is equivalent to a pseudo-range error of 3m

The error of GPS long-distance speed measurement is relatively large: the error rate can reach more than 4%

[0010] 5. The GPS signal is unstable. When encountering a weak signal or entering a tunnel, the real-time speed cannot be obtained, resulting in an inaccurate estimate of the estimated arrival time

[0011] 6. The estimated arrival time of the navigation is inaccurate, and the actual arrival time is often closely related to the road conditions. The traditional optimization method is to combine the real-time road conditions of the electronic map to select the optimal route. However, the electronic map can only obtain the current road conditions, and in the process of driving The road conditions will change, so the pre-calculated estimated arrival time is not accurate enough

Images