Vehicle locating terminal

Abstract

The invention discloses a vehicle locating terminal. The terminal comprises a vehicle controller, a CAN controller, a data transceiver module, a processor module, a GPS data receiving module, a GPRS data transmission module, a signal modulation module, a signal demodulation module, and a power supply module. The vehicle locating terminal is high in measuring precision and easy to achieve, and obtains location information in real time, the acquired position parameters are subjected to an optimizing process of the signal modulation module and the signal demodulation module, the real-time and stability of the vehicle locating terminal are effectively improved, the circuit structure of the power supply module is simple, the device quantity is few, the components possess high temperature operating environment requirement, are compact in volume and small in overall heat dissipation, the vehicle locating terminal is suitable for installation in the slim and enclosed interior space of underground equipment, and the regulation, limitation and protection of wide voltage and wide frequency signal in high temperature environment are achieved.

Description

technical field [0001] The invention belongs to the field of vehicle positioning control machines, in particular to a vehicle positioning terminal. Background technique [0002] In China, with the rise of wireless sensory network applications such as Smart Earth in recent years, IoT applications have been widely used in transportation, electric power, medical care, environmental monitoring and other fields. Globally, IoT-based applications are increasingly being used in the field of automobile manufacturing and service, and have become one of the most active and major businesses in the IoT field. [0003] At present, major auto companies around the world are already actively promoting in-vehicle applications to enhance their competitiveness in the field of products and services. The Internet of Vehicles is the second application level based on the electronics and intelligence of the car. The so-called Internet of Vehicles refers to the collection of information on vehicles...

AI Technical Summary

Problems solved by technology

But because GPS is a passive receiving system, that is, the GPS terminal can know its own location only when it is in use, and cannot notify the command department. The problem brought about like this is that only the driver of the vehicle can accurately grasp the location information of the vehicle, and as a vehicle management The department has no way of knowing the exact location of the vehicle

[0005] At present, the commonly used vehicle data transmission method is mostly GPRS wireless data transmission. Since GPRS uses packet switching technology, and packet switching is not a real-time system, the delay is not fixed, resulting in a large delay in the transmission of information from the vehicle to the ground, and Since GPRS is a service developed on the basis of GSM, that is to say, the use of GPRS depends on the GSM network, and the GSM network has not yet achieved full coverage in some remote areas or mountainous areas. In most areas, the GSM signal is greatly affected by the environment, etc., resulting in signal instability or the formation of signal blind spots and the inability to provide GPRS services

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