CN1318731A - Coin counter by mearing coin diameter - Google Patents

Abstract

A coin counting device by measuring coin diameter features that the optical beam generated by the optical tramisitting sets to be reflected to form two optical nets of up and down on the coin measuring channel with known distance in between two nets. The optical receiver receives the signals from two optical nets. To use the time ratio of the spending time of coin passing through up optical net and the spending time of coin starting interruption of up optical net to the coin starting interruption of down optical net multiplys the distance of two optical nets to calculate out the diameter of the coins for obtaining the sum of the coin value.

Description

Measure the coin counter of coin diameter

The present invention provides a kind of coin counter of measuring coin diameter, be to establish an optical transmitting set to launch light beam, via the suitably oppositely setting of face or retrodirective mirror, form on the passage that coin is detected by same light beam constituted upper and lower two light nets of being separated by a known distance, light beam is received the signal of this light beam by an optical receiver after forming two light nets simultaneously; So time of falling and to spend with coin by glazing net institute palpus, count (or time of spending by institute's palpus behind the light net down of coin time that when beginning to interdict light net down institute must cost with coin from blocking glazing net, break away from the time that institute must spend when breaking away from light net down of counting behind the glazing net with coin), multiply by distance between the two light nets with the ratio of this two groups of times, can calculate the diameter of coin, just can obtain value of money then and add up; Therefore, coin not only can not influence the accuracy of measurement by the speed of sense channel, has or not siding-device all applicable simultaneously.

The structure shape feelings of present modal optical profile type identification coin, roughly as shown in Figure 1, be that suitable position place on a sense channel 1 is provided with one and starts detector c, and be provided with at side place after a while, following straight line is a plurality of OPTICAL SENSORS a side by side, b, this sense channel 1 is necessary for the setting of appropriate tilt degree simultaneously, or for prevent the phenomenon that coin 2 is beated by sense channel 1 time, reach diameter difference because of the coin of different values of money, and for making the coin 2 can be smooth, rolling is on the hypotenuse of sense channel 1 reposefully, so the siding-device of a tool elastic component mostly must be set again, guide coin 2 to rely on rolling on the hypotenuse of examining passage 1 really, False Rate during with the reduction identification; Simultaneously, the method for its identification please cooperate shown in Fig. 2 to 4, and is described as follows:

When coin 2 at first detects and learns by starting detector c to tumbling, make upper and lower OPTICAL SENSORS a then, b is activated the work that detects, and works as coin by upper and lower OPTICAL SENSORS a, during b, because upper and lower OPTICAL SENSORS a, b height and position difference, institute so that coin 2 (suppose its diameter d 1, as shown in Figure 2), by the time time that must spend also have difference, so can record the two groups of different time of passing through t1a, t1b; If the coin 2 of different values of money (suppose that its diameter is d2, also can record as shown in Figure 3) the two groups of different time of passing through t2a, t2b, or coin 2 (is supposed that its diameter is d3, also can be recorded as shown in Figure 4) the two groups of different time of passing through t3a, t3b; Therefore, but by the difference of t1a/t1bt or t2a/t2b or t3a/t3b ratio, and judge the size of the coin 2 of different-diameter, and then with prior input system in set the corresponding value of money of each ratio, distinguish its value of money, with the purpose that reaches the counting coin and add up.

, though the discrimination method of above-mentioned coin can reach its its intended purposes, but have following shortcoming:

1, because of the coin 2 of different values of money, its diameter also has difference, so the width of sense channel 1 designs with coin 2 external diameters of maximum, and for allow coin 2 can be smoothly, rolling is in the dependence rolling reference edge of sense channel 1 reposefully, so no matter sense channel 1 is to be skewed or vertical configuration, cause the phenomenon judged by accident in order to prevent that coin 2 from beating by sense channel 1 time, so the siding-device of a tool elastic component all can be set, guide coin 2 to rely on rolling on the reference edge of examining passage 1 really; Though this device that keeps to the side to guide can be reached its expected effect, increased the structural complicacy of coin-feed machine, and coin 2 is stuck in sometimes on the guiding device that keeps to the side and can't continues to fall and cause fault.

2, the sensor that detects coin 2 must have more than two groups at least, can reach the desire computation purpose, so can cause the complicacy of the increase of cost and structure, control relatively.

Therefore, for overcoming above-mentioned known every desirable not to the utmost shortcoming, the present invention is the light beam that is only emitted by an optical transmitting set, reflection via suitable reflecting surface or catoptron, constitute the intensive upper and lower two light nets that interweave, this light beam is received the signal of this light beam again by an optical receiver at last, simultaneously the upper and lower two light nets known distance of being separated by; So time that can must spend by glazing net institute by coin, with coin from beginning to interdict the glazing net to beginning to interdict the time that light net institute down must cost (or time of spending by light net institute palpus down of coin, and coin breaks away from the time that glazing net institute when breaking away from light net down must spend) multiply by distance between the two light nets with the ratio of this two groups of times, can calculate the diameter of coin, so sense channel can be or vertical the setting, and needn't use the guiding device that keeps to the side, so accuracy simple in structure and that detect is high again, and the situation that does not have erroneous judgement fully takes place.

Another purpose of the present invention is that the sensor that detects coin just can reach for one group, not only can simplified structure and the design of system, and can reduce cost again.

A further object of the present invention is that upper and lower each other light net just can record the diameter of coin, if ask its mean value again by the measured coin diameter of two light nets again, enables to obtain higher accuracy, with the generation that prevents to judge by accident.

A further object of the present invention is when if the acceleration of gravity factor again when coin is fallen is taken into account, and makes the coin external diameter of measuring gained more accurate, reliably.

Purpose of the present invention can be achieved by following mode, the present invention refers in particular on a side of sense channel, respectively establish optical transmitting set and optical receiver down, and the place is provided with catoptron at the opposite side relative position, or both sides all are provided with catoptron, be provided with a plurality of reflectings surface that interlock relatively mutually and be suitable reflection angle again mutually simultaneously in sense channel inside, or the reflection angle of each two adjacent reflecting surface is just opposite, after thunder laser beam or parallel beam are launched by optical transmitting set, reflect in order by each reflecting surface and catoptron, and by light beam intensive interweave constitute on, following light net, final beam are received the signal of light again by optical receiver; So time of falling and to spend with coin by glazing net institute palpus, count (or time of spending by institute's palpus behind the light net down of coin time that when beginning to interdict light net down institute must cost with coin from the glazing net of blocking, with coin from breaking away from the time that institute must spend when breaking away from light net down of counting behind the glazing net), multiply by distance between the two light nets with the ratio of this two groups of times, calculate the diameter of coin, and give memory storage and obtain value of money and add up, and reach the purpose of accurate several coin.

Of the present invention other purpose and the category that further is suitable for, can be by clear learning in following being described in detail.But these detailed narrations and the embodiment that mentions of institute be only for explanation usefulness, because institute's various changes of making and revising for the professional person in the industry in spirit of the present invention and category can be known from these describe in detail completely and learn.

The present invention can be understood completely by following detailed description and graphic acquisition, the usefulness that these describe in detail and accompanying drawing only explains, and should not limit to the present invention.It is described below:

Description of drawings:

Fig. 1 is the simple and easy synoptic diagram of known coin identification structure;

Fig. 2 is known coin discrimination method synoptic diagram one;

Fig. 3 is known coin discrimination method synoptic diagram two;

Fig. 4 is known coin discrimination method synoptic diagram three;

Fig. 5 is a structural representation of the present invention;

Fig. 6 is that light net of the present invention forms mode one;

Fig. 7 is that light net of the present invention forms mode two;

Fig. 8 is the situation one of coin of the present invention by the light net;

Fig. 9 is the situation two of coin of the present invention by the light net;

Figure 10 is the situation three of coin of the present invention by the light net;

Figure 11 is the situation four of coin of the present invention by the light net;

Figure 12 is that optical receiver of the present invention has or not the time diagram that receives light signal;

Figure 13 is that coin diameter of the present invention is measured the calculating schematic flow sheet;

Figure 14 is that coin of the present invention is measured the accumulative total schematic flow sheet.

See also shown in Figure 5, the place, one side of the sense channel 1 of coin 2 of the present invention establishes and respectively is provided with optical transmitting set A and optical receiver B, and be provided with the retrodirective mirror 7 that is relative position with optical transmitting set A and optical receiver B more again in another other place of sense channel 1, therefore when optical transmitting set A launches light beam 5, can in sense channel 1, produce glazing net 3, and then via the secondary reflection of upper and lower two catoptrons 7, form light net 4 down in the sense channel 1 and light beam 5 is back to again, receive the signal of light beam 5 at last again by optical receiver B; And on above-mentioned, following light net 3,4 modes that form as shown in Figure 6, be on sense channel 1 inside, following desire forms the position of light net, be provided with a plurality of reflectings surface 6 that interlock relatively mutually and be suitable reflection angle again mutually, when making light beam 5 launch laser or parallel rays by optical transmitting set A, reflection in regular turn by each reflecting surface 6, when making light beam 5 launch laser or parallel rays by optical transmitting set A, reflection in regular turn by each reflecting surface 6, and constitute a glazing net 3 by light beam 5 is intensive, light beam 5 is again through last then, the reflection of following retrodirective mirror 7, the mat below intensive in regular turn reflection ray of each reflecting surface 6 and form down light net 4 again, final beam 5 is received the signal of its light by optical receiver B; Perhaps as shown in Figure 7, the reflection angle of each two adjacent reflecting surface 6 is just in time opposite, so make light beam 5 from first reflecting surface 6 reflex in regular turn the reflecting surface 6 of other end end ' after reflect again, make the intensive glazing net 3 that interweaves of formation, light beam 5 reflexes to the reflecting surface 6 of below again through catoptron 7 then, and in an identical manner in making the light beam 5 intensive light nets 4 that are woven into down, the same signal that receives light beam 5 at last again by optical receiver B.

Therefore, shown in Fig. 8,12, spacing in sense channel 1 between the formed two upper and lower light nets 3,4 is to be a known distance d, so to rigidly connect the time that contacts 3 on glazing net be t1 falling to when coin 2 (its diameter is assumed to be D), and its initial velocity is V1, is to be t2 until the time of coin 2 when breaking away from glazing net 3; Or, as shown in Figure 9 be to be t3 when coin 2 falls to the time that rigidly connects when contacting down light net 4; So during according to above-mentioned each data and object motion with uniform acceleration, and can get following two formula; $D=V_1{t}_{21}+\frac{1}{2}{{\mathrm{at}}_{21}}^2---\left(1\right)$ $d=V_1{t}_{31}+\frac{1}{2}{{\mathrm{at}}_{31}}^2---\left(2\right)$ (t wherein ₂₁=t ₂-t ₁t ₃₁=t ₃-t ₁A: acceleration of gravity) $E2---\left(2\right)--t_{21}={\mathrm{dt}}_{21}=V_1{t}_{31}{t}_{21}+\frac{1}{2}{{\mathrm{at}}_{31}}^2{t}_{21}$ $E1---\left(1\right)--t_{31}={\mathrm{Dt}}_{31}=V_1{t}_{21}{t}_{31}+\frac{1}{2}{{\mathrm{at}}_{21}}^2{t}_{31}$ $E1-E2---{\mathrm{Dt}}_{31}-{\mathrm{dt}}_{21}=\frac{1}{2}{\mathrm{at}}_{21}{t}_{31}(t_{21}-t_{31})$ $=-\frac{1}{2}{\mathrm{at}}_{21}{t}_{31}{t}_{32}$ ${\mathrm{Dt}}_{31}={\mathrm{dt}}_{21}-\frac{1}{2}{\mathrm{at}}_{21}{t}_{31}{t}_{32}$ $D=\frac{t_{21}}{t_{31}}d-\frac{1}{2}{\mathrm{at}}_{21}{t}_{32}---\mathrm{<figure-callout\; id="1"\; label="eq"\; filenames="A0010604000121.png,A0010604000131.png"\; state="\{\{state\}\}">eq</figure-callout>}1$

Or as, shown in Figure 10,12, when coin 2 (its diameter is assumed to be D) is t2 in just time when breaking away from glazing net 3, and its initial velocity is V2, the time that rigidly connects when contacting down light net 4 until coin 2 is to be t3; Or, as shown in figure 11 be to be t4 when the time of coin 2 when breaking away from following light net 4; So when above-mentioned each data and object uniform accelerated motion, and can get following two formula: $d-D=V_2{t}_{32}+\frac{1}{2}{{\mathrm{at}}_{32}}^2----\left(3\right)$ $d=V_2{t}_{42}+\frac{1}{2}{{\mathrm{at}}_{42}}^2---\left(4\right)$ (t wherein ₃₂=t ₃-t ₂T ₄₂=t ₄-t ₂' a: acceleration of gravity) $E1---\left(3\right)\&times;t_{42}={\mathrm{dt}}_{42}-{\mathrm{Dt}}_{42}=V_2{t}_{32}{t}_{42}+\frac{1}{2}{{\mathrm{at}}_{32}}^2{t}_{42}$ $E2---\left(4\right)\&times;t_{32}={\mathrm{dt}}_{32}=V_2{t}_{42}{t}_{32}+\frac{1}{2}{{\mathrm{at}}_{42}}^2{t}_{32}$ $E1-E2-----{\mathrm{dt}}_{42}-{\mathrm{dt}}_{32}-{\mathrm{Dt}}_{42}=\frac{1}{2}{\mathrm{at}}_{32}{t}_{42}(t_{32}-t_{42})$ $d(t_{42}-t_{32})-{\mathrm{Dt}}_{42}=\frac{1}{2}{\mathrm{at}}_{32}{t}_{42}{t}_{34}$ ${\mathrm{dt}}_{43}-{\mathrm{Dt}}_{42}=-\frac{1}{2}{\mathrm{at}}_{32}{t}_{42}{t}_{43}$ ${\mathrm{Dt}}_{42}={\mathrm{dt}}_{43}+\frac{1}{2}{\mathrm{at}}_{32}{t}_{42}{t}_{43}$ $D=\frac{t_{43}}{t_{42}}d+\frac{1}{2}{\mathrm{at}}_{32}{t}_{43}---\mathrm{<figure-callout\; id="2"\; label="eq"\; filenames="A0010604000111.png,A0010604000121.png"\; state="\{\{state\}\}">eq</figure-callout>}2$

Therefore, because t ₂₁With t ₃₂, t ₃₂With t ₄₃Time compole short, the distance between the upper and lower two light nets 3,4 is very short again simultaneously, and the increment of acceleration of gravity during to movement of objects is limited, still can ignore the influence that acceleration of gravity produces, so eq1, eq2 equation can be approximately: $D=\frac{t_{21}}{t_{31}}d---\mathrm{eq}3$ $D=\frac{t_{43}}{t_{42}}d---\mathrm{<figure-callout\; id="4"\; label="eq"\; filenames="A0010604000141.png,A0010604000151.png"\; state="\{\{state\}\}">eq</figure-callout>}4$ So we can be respectively try to achieve coin 2 with eq1 or eq2 or eq3 or eq4 $D=\frac{t_{21}}{t_{31}}d---\mathrm{eq}3$ $D=\frac{t_{43}}{t_{42}}d---\mathrm{<figure-callout\; id="4"\; label="eq"\; filenames="A0010604000141.png,A0010604000151.png"\; state="\{\{state\}\}">eq</figure-callout>}4$

So we can be respectively try to achieve the diameter of coin 2 with eq1 or eq2 or eq3 or eq4; Promptly fall from touching glazing net 3 to time t by 3 palpuses costs of disengaging glazing net by coin 2 ₂₁, with coin 2 fall touch glazing net 3 when touching down light net 4 must the cost time t ₃₁, with both ratio multiply by between the upper and lower light net 3,4 apart from d, just can try to achieve the diameter of coin 2; Or touching following light net 4 to time t by institute must spend during light net 4 under breaking away from by coin 2 ₄₃, passing through to break away from glazing net 3 until time t by 4 palpuses costs of light net under breaking away from coin 2 ₄₂, multiply by distance between the upper and lower shading net 3,4 with both ratio, just can try to achieve the diameter of coin 2; Therefore, the diameter accuracy height of the described coin 2 that gets only must one group of OPTICAL SENSORS just can be finished simultaneously, when being detected by 5 intensive upper and lower light nets 3,4 that are interwoven of light beam simultaneously, vertical or the setting of tilting of not examined passage 1 and influential, and need not install siding-device.

See also again shown in Figure 13,14, coin 2 is by the detection faces of the upper and lower light net 3,4 that is made of optical transmitting set A and optical receiver B, calculate aforementioned each formula must time after, just data is sent into information unit, carry out the original data comparison of just having imported in the read-write memory body, if there is the data that meets just can know its value of money; If new coin or the new coin of input under unwitting situation, then can press the button of memory input, the coin diameter that records of system is stored in the memory body, and then imports the value of money of this coin, the data of this new coin is so just arranged in memory body; Simultaneously, again with detect and the coin value of money, carry out accumulating operation and reach the purpose of several coin.

In sum, structure of the present invention can overcome the shortcoming of prior art, not only promote the effect of prior-art devices, non-prior-art devices can be compared, so the present invention not only meets practical value, and at first creating and the tool progressive, meets the relevant regulations of Patent Law, earnestly asking your juror and vouchsafe patent early, is to pray for sense.

Claims (1)

1, a kind of coin counter of measuring coin diameter, feature is meant on a side of sense channel, respectively establish optical transmitting set and optical receiver down, and the place is provided with catoptron at the opposite side relative position, or both sides all are provided with catoptron, be provided with a plurality of reflectings surface that interlock relatively mutually and be suitable reflection angle again mutually simultaneously in sense channel inside, or the reflection angle of each two adjacent reflecting surface is just opposite, after thunder laser beam or parallel beam are launched by optical transmitting set, reflect in order by each reflecting surface and catoptron, and by light beam intensive interweave constitute on, following light net, final beam are received the signal of light again by optical receiver; So time of falling and to spend with coin by glazing net institute palpus, count (or time of spending by institute's palpus behind the light net down of coin time that when beginning to interdict light net down institute must cost with coin from the glazing net of blocking, with coin from breaking away from the time that institute must spend when breaking away from light net down of counting behind the glazing net), multiply by distance between the two light nets with the ratio of this two groups of times, calculate the diameter of coin, and give memory storage and obtain value of money and add up, and reach the purpose of accurate several coin.

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