Method for verifying VIN code by using VIN code check bit standard weighting algorithm
A technology of algorithm verification and check digit, which is applied in the direction of calculation, response error generation, redundant code error detection, etc. It can solve the problems of VIN code error-prone and the platform cannot identify the correct car model, etc., to achieve improvement Customer experience and the effect of optimizing the binding process
Pending Publication Date: 2019-08-09
JIANGSU DIGITAL DNA TECH CO LTD
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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
Method used
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Embodiment 1
[0046] The VIN code verification rule library verifies the calculation and determination process of the verification digit of a certain car VIN code, as shown in Table 4 below:
[0047] Table 4 Calculation method of check digit of VIN code
[0048]
[0049] Through the above calculation, it is determined that the check digit code in this VIN code is 7.
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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...
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IPC IPC(8): G06F16/903G06F11/10
CPCG06F11/104G06F16/90344
Inventor 韩晓飞
Owner JIANGSU DIGITAL DNA TECH CO LTD
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