Method for splitting ambiguous path tolls for highways based on license plate recognition
A technology for license plate recognition and expressway, applied in instruments, ticketing equipment, etc., can solve the problems of inaccurate split results of tolls, large weather effects, and large differences in proportional relations, etc., to promote benign operation, improve maintenance, The effect of improving adaptability
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Embodiment 1
[0065] A toll splitting method for expressway ambiguity paths based on license plate recognition is applied to the above-mentioned toll splitting system for expressway ambiguity paths based on license plate recognition, and is characterized by including the following steps:
[0066] 1) Initialize the system and set the reference value: including the satisfactory value of the total matching rate, the bottom limit of the gantry matching rate and the reasonable value of the sample distance of the gantry, the satisfactory value of the total matching rate is 0.5-0.7, the bottom of the gantry matching rate The limit is 70%-90% of the historical average of the gantry matching rate; the reasonable value of the sample distance is 0.01-0.04; in this example, the satisfactory value of the total matching rate is set to 0.6, and the lower limit of the gantry matching rate is the gantry 85% of the historical average of the matching rate, the reasonable value of the sample distance of door frame...
Embodiment 2
[0073] Steps 1-3 are the same as in Example 1, and in step 3 C i , C, l i The value is shown in Example 2 in Table 1;
[0074] 4) Store the license plate identification information of unmatched vehicles and perform statistics and judgments based on the above-mentioned reference value set by the system initialization and the license plate identification information of matched vehicles. According to the matching status, determine the split method of unmatched vehicle tolls:
[0075] 4.2) The total matching rate of 0.4824 is less than the satisfactory value of 0.6 of the total matching rate, then it is further judged whether the matching rates of the masts 1 and 2 are respectively greater than the lower limit of the matching rate of the respective masts:
[0076] 4.2.1) The match rate of mast 1 is 0.0806 greater than the lower limit of the mast match rate 0.0895×85%=0.761, and the match rate of mast 2 is 0.4018 greater than the lower limit of the mast match rate 0.4465×85%=0.3795, and ...
Embodiment 3
[0080] One day, the mast 1 failed and the passing vehicle could not be identified. The matching rate of the mast 1 was 0, and the matching data of the mast 2 is shown in Example 3 in Table 2.
[0081] Steps 1-3 are the same as in embodiment 1, in step 3 Q j , Q, C i , C, l i The value of is shown in Table 2 Example 3;
[0082] 4) Store the license plate identification information of unmatched vehicles and perform statistics and judgments based on the above-mentioned reference value set by the system initialization and the license plate identification information of matched vehicles. According to the matching status, determine the split method of unmatched vehicle tolls:
[0083] 4.2) The total matching rate of 0.4329 is less than the satisfactory value of 0.6 of the total matching rate. It is further judged whether the matching rates of the masts 1 and 2 are respectively greater than the lower limit of the matching rate of the respective masts:
[0084] 4.2.1) The door frame matchin...
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