CN209000034U - A kind of trace extract equipment of mimeograph documents and bill original part - Google Patents

Abstract

The utility model provides the trace extract equipment of a kind of mimeograph documents and bill original part, including mounting table, the opposite two sides of mounting table are provided with sliding slot, scale is provided with by sliding slot, several slide bars are additionally provided on mounting table, every slide bar both ends are respectively provided with sliding foot, and two sliding foots are respectively placed in sliding slot, it is slideably fixed with image acquiring device on slide bar, there is scale on slide bar.Equipment provided by the utility model can accurately obtain trace and extract position, extract position convenient for positioning is same in verifying, compared after extracting trace with original trace；Position is flexibly adjustable simultaneously, convenient for changing the acquisition position of trace as needed, so as to obtain better file and the protection of bill original part and verification the verifying results.

Description

A kind of trace extract equipment of mimeograph documents and bill original part

Technical field

The utility model belongs to scanning device technical field, and the trace extraction for being related to a kind of mimeograph documents and bill original part is set It is standby.

Background technique

Mimeograph documents play particularly important effect in the fields such as administration, commercial affairs.Bootlegging, production and use are such Mimeograph documents bring very big safety problem to regular traffic.Accomplish the uniqueness for being effectively protected mimeograph documents original part and legal Property, it is necessary to accomplish:

1. anti-counterfeiting.Due to becoming increasingly popular for computer and printing device, criminal can distort mimeograph documents content, Or file content of arbitrarily fabricating.One is effectively protected the printout that method and apparatus allow for identifying forgery, with protection The integrality of file content.

2. anti-copying.Criminal such as obtains original print, can be multiple using duplicating or the production of scanning+printing method File processed.In the occasion for having high request to file primitiveness, such as the high value bill of lading and bill, using duplication come meeting of forging document Cause very big loss.One effective mimeograph documents guard method and device allow for differentiating orginal and duplicate with Thoroughly prevent science attack.

It is the method for a kind of simple anti-counterfeiting and anti-copying using traditional affixing one's seal or sign.But traditional stamped signature easily quilt It forges, and inefficiency, is unfavorable for identifying automatically and inquiring, is also not easy to be embedded in automatic official business system.It is some current below It is intended to substitute traditional stamped signature to protect the method and system of this class file, equal existing defects.

United States Patent (USP), the patent No. number are 5,193,854 (on March 16th, 1993), Patent No. 6,068,895 (2000 years 5 The moon 30), Patent No. 6,155,604 (on December 5th, 2000), Patent No. 6,089,610 (on July 18th, 2000), specially Benefit number is 6,107,244 (on Augusts 22nd, 2000), is described in the patents such as Patent No. 4,820,006 (on April 11st, 1989) It is a series of to use special paper, the method for specialty inks, special material and special equipment printing security document.The peace of this method Full property is established on the basis of the such specialties of strict control, ink, material and equipment, at the same think such paper, ink, The controls such as the producing and selling of material and equipment are tighter or price is expensive, cause to copy the valence that cost is much higher than agent-protected file Value.These method security are higher, expensive, only in a small number of occasions, as currency, check printing in terms of use.Another party Face, with the development of technology, the safety of such methods are also challenged.

Using one-dimensional or two-dimensional bar (see Pavlidis, Swartz and Wang respectively in " Fundamentals of Bar code information theory ", Computer volume 23, April nineteen ninety and " Information encoding With two-dimensional bar codes ", Computer volume 24, in June, 1992) be it is another generally use beat Printed text part content integrity guard method.The abstract of the method extraction document content prints after then carrying out specific coding processing Onto same file.Identify file it is whether legal need to use bar code reader read encoded information, then with file content ratio It is right.Such as combine hash (hash) function, asymmetric (asymmetric) cryptographic algorithm and digital signature (digital Signature), bar codes technique can protect mimeograph documents content illegally not forged and distorted fool proofly.However, item Shape code is easy to replicate, and any common duplicator can copy the bar code that can be received completely by reader.Therefore bar code It cannot be guaranteed that the primitiveness of mimeograph documents, that is, be unsatisfactory for anti-copying requirement.

To sum up, there are wretched insufficiencies for the integrality and primitiveness aspect that the prior art protects mimeograph documents at the same time.

Summary of the invention

To solve the above problems, the utility model consider extract it is any print, print, affixing one's seal, signing, etc. generations file In the true forms trace such as the extremely strong character of randomness, lines, spot, the trace that all unavoidably generate, for uniquely really Fixed and verifying document text and bill original part, but due to limited conditions, full text is difficult when extracting trace and is extracted, this is just needed in text It carries out selectivity sampling in part to extract, likewise, need to be compared with when extracting with position trace in verifying, but existing equipment It is difficult position with position.The utility model is based on this, provides the trace extraction of a kind of mimeograph documents and bill original part Equipment.

In order to reach the goals above, the utility model provides the following technical solutions:

A kind of trace extract equipment of mimeograph documents and bill original part, including mounting table, the opposite two sides of the mounting table It is provided with sliding slot, scale is provided with by sliding slot, several slide bars are additionally provided on mounting table, it is sliding that every slide bar both ends are respectively provided with one Action spot, two sliding foots are respectively placed in sliding slot, and image acquiring device is slideably fixed on slide bar, has on the slide bar and carves Degree.

Further, described image acquisition device is camera or scanner.

Further, described image acquisition device is mounted on slide bar by lantern ring.

It further, further include lighting device.

Further, mounting table quadrangle is provided with lighting device.

Compared with prior art, the utility model is had the following advantages and beneficial effects:

The utility model provides the trace extract equipment of a kind of file and bill original part, can accurately obtain trace and mention Fetch bit is set, and is extracted position convenient for positioning is same in verifying, is compared after extracting trace with original trace；Position simultaneously It is flexibly adjustable, convenient for changing the acquisition position of trace as needed, so as to obtain better file and the protection of bill original part And verification the verifying results.

Detailed description of the invention

Fig. 1 is the trace extract equipment top view of mimeograph documents provided by the utility model and bill original part.

Fig. 2 is slide bar side view.

Specific embodiment

With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties Formula is merely to illustrate the utility model rather than limitation the scope of the utility model.It should be noted that making in being described below Word "front", "rear", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" respectively refer to Be directed towards or far from geometric center of specific component direction.

The trace extract equipment of a kind of mimeograph documents and bill original part as shown in Figure 1, including mounting table 1, mounting table 1 are used In placement document text or bill original part.The opposite two sides of mounting table 1 (upper and lower two sides or arranged on left and right sides) are provided with sliding slot 2, it is provided on 3. mounting table 1 of scale by sliding slot 2 and is additionally provided with a slide bar 8 or several, figure is slideably fixed on slide bar As acquisition device 5.When several slide bars are set simultaneously, the file trace of multiple positions can be obtained simultaneously, and mounting table 1 is set in Fig. 1 It is equipped with three slide bars.Every slide bar both ends are respectively provided with sliding foot 4, and two sliding foots are respectively placed in sliding slot, and sliding can be completely ball Shape or rectangular-shape, slide the frictional force between foot and sliding slot answer it is larger, can be advisable in external force lower slider, when no external force When on slide bar, sliding foot is fixed in position motionless.There is scale 3 on slide bar.

Preferably, compact camera or scanner can be used in image acquiring device.Image acquiring device is installed by lantern ring 6 On slide bar, it can be slided on slide bar under external force.Frictional force between lantern ring and slide bar answer it is larger, with can be in external force Lower slider is advisable, and when no external force is on lantern ring or image acquiring device, lantern ring is fixed in position motionless.

In addition, being preferably provided with lighting device 7 on mounting table, maintained like when original can be enabled to extract and verify Lighting environment.Preferably, mounting table quadrangle is provided with lighting device, uniform illumination.

When using equipment provided by the utility model, document text or bill original part are placed on mounting table first, opened Lighting device selects suitable trace to obtain position and is recorded, and lantern ring by sliding bar and thereon slides into acquisition At position, the trace on file and bill is obtained using image acquiring device.When verifying file, by sliding bar and thereon Lantern ring slides into aforementioned same extraction position, is compared after extracting trace with original trace, that is, can verify that file and Whether bill is original part.

Technological means disclosed in the utility model is not limited only to technological means disclosed in above embodiment, also Including technical solution consisting of any combination of the above technical features.It should be pointed out that for the ordinary skill of the art For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit Decorations are also considered as the protection scope of the utility model.

Claims (5)

1. the trace extract equipment of a kind of mimeograph documents and bill original part, which is characterized in that including mounting table, the mounting table phase Pair two sides be provided with sliding slot, scale is provided with by sliding slot, several slide bars are additionally provided on mounting table, every slide bar both ends are each Equipped with a sliding foot, two sliding foots are respectively placed in sliding slot, and image acquiring device, the slide bar are slideably fixed on slide bar It is upper that there is scale.

2. the trace extract equipment of mimeograph documents according to claim 1 and bill original part, which is characterized in that described image Acquisition device is camera or scanner.

3. the trace extract equipment of mimeograph documents according to claim 1 and bill original part, which is characterized in that described image Acquisition device is mounted on slide bar by lantern ring.

4. the trace extract equipment of mimeograph documents according to claim 1 and bill original part, which is characterized in that further include shining Bright device.

5. the trace extract equipment of mimeograph documents according to claim 4 and bill original part, which is characterized in that mounting table four Angle is provided with lighting device.