Motor vehicle on-site tachymeter calibration system based on wireless data communication

Abstract

The invention relates to the technical field of instruments and meters, and discloses a motor vehicle on-site tachymeter calibration system based on wireless data communication. The system comprises main control equipment, an LED display module, a displacement sensor and an operation module, and is characterized in that the data output end of the main control equipment is in data connection with the data input end of the LED display module; the main control equipment is in bidirectional data connection with the operation device, and the data output end of the displacement sensor is in data connection with the data receiving end of the main control device. According to the motor vehicle on-site tachymeter calibration system based on wireless data communication, a state monitoring module can monitor parameters such as temperature and illuminance of an external environment in real time, guarantee is provided for safe and stable operation of the whole system, and high-precision system real-time time calibration and tachymeter instantaneous speed calibration are provided for an interval speed measurement system, the instantaneous speed of a tachymeter is calibrated, data of a high-precision satellite time service module and a non-contact displacement sensor are analyzed through big data, and the measurement precision of an interval average speed result can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of instruments and meters, in particular to a motor vehicle on-site speedometer calibration system based on wireless data communication. Background technique [0002] With the leap-forward development of my country's road traffic, the importance of road traffic safety is becoming increasingly important. As one of the important means of road traffic speed monitoring, motor vehicle speedometers not only monitor traffic conditions in real time to ensure traffic safety, but also provide important law enforcement basis for relevant departments. Therefore, they are closely related to people's lives, and thus have attracted the attention and attention of the whole society. , the investment in road traffic safety in various provinces and cities has further increased, the demand for motor vehicle speedometers has surged, and various domestic motor vehicle speedometer manufacturers have sprung up like mushrooms after ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a vehicle on-site speedometer calibration system based on wireless data communication, which solves the incomplete display information of the existing display device, and the device can only display the current reading from the non-contact speedometer. The speed value, but there are no parameters such as current time and driving distance, which makes it difficult to compare data and cannot be used as a standard device for interval speed measurement in the future.

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