Banknote authenticity identification equipment based on number extraction and method thereof

[0063] Example one:

[0064] In the first embodiment of the present invention, the banknote authenticity recognition device based on number extraction is provided with two sets of number extraction devices only on one side of the conveying channel 10. In this embodiment, the device is set above the conveying channel as an example, and its structure is as figure 2 As shown, the number extraction device (11a, 11b, 12a, 12b), the number recognition device 21 and the authenticity determination device 31 are included.

[0065] Among them, the number extraction devices 11a and 11b are a group, and the number extraction devices 12a and 12b are a group. A total of two number extraction devices are set above the transmission channel. figure 1 The number area setting of the banknote 20 shown in FIG. When only two sets of number extraction devices are installed on one side of the conveying channel, the number picking device will obtain the designated number area when the banknote passes the designated collection position of the conveying channel for the first time or the second time after the reverse side passes through the designated collection position of the conveying channel. Number image. This is because the banknotes entering the transmission channel of the device are not sorted, and may face up or the reverse side is up. When only two sets of number extraction devices are installed above the transmission channel, the numbers can only be collected when the front is up. After the banknote passes through the conveying channel for the first time, pass the reverse side of the banknote through the conveying channel again, so that it is always face up once, and the banknote with the number collected for the first time can be collected when it passes through the conveying channel for the second time Number, the number of all banknotes is collected through two transmissions.

[0066] After the number extraction device acquires the number image in the designated number area, the number recognition device recognizes the number in the number image, the authenticity determination device acquires the recognized number, and determines whether the number extracted by each group of number extraction device is the same and the recognized number Whether it is a real banknote number, the authenticity of the banknote is determined according to the judgment result.

[0067] In fact, for a banknote, only one set of number extraction devices can obtain the number image, and the other set of number extraction devices will not obtain the number image. Therefore, optionally, after a group of number extraction devices have obtained the number image, you can Notifying the other group of numbering devices that it is no longer acquiring it, or both groups of numbering devices can acquire the number image at the same time, and the number recognition device determines the valid number image among them, and the number is identified from the valid number image.

[0068] Optionally, for the same stack of banknotes, it is not necessary to record which banknotes have already collected the number image for the first time. After putting it into the transmission channel on the reverse side, you can extract the number image for all banknotes one by one; After entering the transfer channel once, the sequence number of the banknotes with the collected numbers is recorded. After the transfer channel is placed on the reverse side, the number image collection can only be performed on the banknotes for which the number image is not collected for the first time.

[0069] Embodiment two:

[0070] In the second embodiment of the present invention, the banknote authenticity identification device based on number extraction is provided with two sets of number extraction devices only on one side of the conveying channel 10. The difference from the first embodiment is that this embodiment is arranged below the conveying channel For example, its structure is like image 3 As shown, the number extraction device (13a, 13b, 14a, 14b), the number recognition device 21 and the authenticity determination device 31 are included.

[0071] Among them, the number extraction devices 13a and 13b are a group, and the number extraction devices 14a and 14b are a group. There are two sets of number extraction devices under the transmission channel. figure 1 The number area setting of the banknote 20 shown in FIG. When only two sets of number extraction devices are installed on one side of the conveying channel, the number picking device will obtain the designated number area when the banknote passes the designated collection position of the conveying channel for the first time or the second time after the reverse side passes through the designated collection position of the conveying channel. Number image. This is because the banknotes entering the transmission channel of the device are not sorted, and may face up or the reverse side is up. When only two sets of number extraction devices are set under the transmission channel, the numbers can only be collected when the reverse side is up. After the banknote passes through the transmission channel for the first time, pass the reverse side of the banknote through the transmission channel again, so that there will always be the reverse side up once, and the banknote with the number collected for the first time can be collected when it passes through the transmission channel for the second time Number, the number of all banknotes is collected through two transmissions.

[0072] After the number extraction device obtains the number image in the designated number area, the number recognition device and the authenticity determination device perform subsequent processing. For the specific processing flow, refer to the first embodiment.

[0073] For other possible processing in this embodiment, refer to the description of Embodiment 1.

[0074] Example three

[0075] The device for identifying the authenticity of banknotes based on number extraction provided in the third embodiment of the present invention, when two sets of number extraction devices are arranged on both sides of the same collection position of the transmission channel, the designated number area is obtained when the banknote passes through the designated collection position of the transmission channel Number image. Its structure is like Figure 4 As shown, it includes: number extraction device (11a, 11b, 12a, 12b, 13a, 13b, 14a, 14b), number recognition device 21 and authenticity determination device 31.

[0076] The number extraction devices 11a and 11b are a group, the number extraction devices 12a and 12b are a group, and are set above the transmission channel; the number extraction devices 13a and 13b are a group, and the number extraction devices 14a and 14b are a group, which are set in the transmission channel. Below the channel.

[0077] In this embodiment, each group of number extraction devices realizes the collection of number images at the same collection position. The banknotes entering the transport channel can be collected with the number images regardless of whether the front side is facing up or the back side is facing up. It is only for different front and back orientations. Different from the entry end, the number extraction device that collects the number image may be a number extraction device of a different group.

[0078] In this case, where two sets of number extraction devices are respectively arranged above and below the conveying channel, the number images of all banknotes can be collected once the banknotes pass through the conveying channel, and there is no need to perform secondary collection after the reverse side. Of course, for accuracy, a second acquisition can also be performed for verification.

[0079] After the number extraction device obtains the number image in the designated number area, the number recognition device and the authenticity determination device perform subsequent processing. For the specific processing flow, refer to the first embodiment.

[0080] For other possible processing in this embodiment, refer to the description of Embodiment 1.