Method for verifying VIN code by using VIN code check bit standard weighting algorithm

Abstract

The invention discloses a method for verifying a VIN code by using a VIN code check bit standard weighting algorithm. The method comprises the following steps: creating a VIN code check rule base in adatabase; in the VIN code verification rule base, calibrating VIN code characters a to be only composed of 17-bit letters and numbers, and I / O / Q is listed as illegal characters; calculating a ninth bit of the VIN code according to a VIN code check bit calculation method in a VIN code check rule base; after a client inputs a 17-bit VIN code at an APP terminal or a WEB terminal, calling a VIN codeverification rule base, and identifying whether the VIN code is a legal character or not; if the VIN code is a legal character, calculating according to the check bit calculation method, and if the calculated ninth bit of the VIN code is consistent with the ninth bit of the VIN code, determining that the VIN code is correct; otherwise, prompting errors and re-inputting. The method solves the long-term problem that errors are prone to occurring when the VIN code is input manually, optimizes the vehicle binding process of the client, and greatly improves the client experience.

Description

technical field [0001] The invention belongs to the field of computer software, in particular to a method for verifying a VIN code by a VIN code check digit standard weighting algorithm. Background technique [0002] Vehicle Identification Number (VIN) is a set of codes designated by the vehicle manufacturer for the vehicle in order to identify a certain vehicle. [0003] VIN consists of three parts, which are World Manufacturer Identification (WMI), Vehicle Description (VDS) and Vehicle Instructions (VIS), such as figure 1 shown. [0004] The world manufacturer identification number (WMI) is the first part of the vehicle identification number (VIN), which is used to mark the manufacturer of the vehicle. When this code is assigned to a certain vehicle manufacturer, it can be used as the identification mark of the factory. When the world manufacturer identification code is used together with the second and third parts of the vehicle identification code, it is enough to ensu...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that it is easy to make mistakes when manually inputting the VIN code of a vehicle, resulting in the platform being unable to identify the correct vehicle model, the present invention provides a method for verifying the VIN code by the standard weighted algorithm of the VIN code check digit

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