CN102254143A - Method for detecting and identifying toy card for children - Google Patents
Method for detecting and identifying toy card for children Download PDFInfo
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- CN102254143A CN102254143A CN2011101918924A CN201110191892A CN102254143A CN 102254143 A CN102254143 A CN 102254143A CN 2011101918924 A CN2011101918924 A CN 2011101918924A CN 201110191892 A CN201110191892 A CN 201110191892A CN 102254143 A CN102254143 A CN 102254143A
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Abstract
The invention relates to a method for detecting and identifying a toy card for children. The method comprises the following steps: printing a group or a sequence of reflective blocks on one side or two sides of the toy card for children; setting a first LED (light emitting diode) array and a second LED array, electrically connected with the CPU (central processing unit) of a card learning machine, on the card learning machine; inserting the toy card for children into the card learning machine, wherein the positions of the LED array and the reflective blocks are connected by virtue of a light path; controlling the CPU of the card learning machine to light the first LED array, irradiating the reflective blocks so as to form reflective lights with different strengths corresponding to the grey scales of the reflective blocks, receiving and converting the reflective lights into electric signals by virtue of the second LED array, and measuring the electric signals and converting the electric signals into corresponding numbers according to the comparison results between the electric signals and a corresponding threshold; generating a number sequence according to the converted numbers; and identifying the number sequence as an identity identification number corresponding to the toy card for children.
Description
Technical field
The present invention relates to the card learning machine, be specifically related to the photoelectric toy for children card of a kind of application LED and detect recognition methods.
Background technology
China's utility model patent " key device on a kind of card learning machine ", patent No. CN200920261406.X discloses a kind of device that uses mechanical switch to detect card.The mechanism of its detection is: when the user inserts card, because card one side has aperture according to the coding of card, therefore the detector switch of tapping is release conditions, and the detector switch of tapping is not a closure state, thereby form a string binary sequence, be described identify label number, be used for the card that CPU identification user inserts.Its weak point is, the detector switch cost height of described card, and crash rate height, code efficiency not high (form " 10010 " binary coding as positive perforate, then the back side is the backward coding of " 01001 ") after the card perforate.
Summary of the invention
The technical issues that need to address of the present invention are, how to provide a kind of toy for children card to detect recognition methods, can overcome the detection of the not enough and low-cost realization toy for children card that the mechanical type card detects and card is made.
Technical matters of the present invention solves like this: make up a kind of toy for children card and detect recognition methods, it is characterized in that, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
First led array and second led array be electrically connected with card learning machine CPU is set at the card learning machine;
Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
According to detection recognition methods provided by the invention, adopt minimum LED number, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
First led array and second led array be electrically connected with card learning machine CPU is set at the card learning machine;
Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Second led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by first led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
Wherein:
Described card learning machine CPU can be set to simultaneously, at interval or light LED in first led array or second led array in turn.
Described card learning machine CPU is provided with the LED that alternately lights in first led array and second led array.
According to detection recognition methods provided by the invention, have the optimum detection effect, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
At first led array and second led array that the setting of card learning machine is electrically connected with card learning machine CPU, first led array is consistent with LED number in second led array, and first led array only is used for luminous;
Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
Wherein:
Described card learning machine CPU can be set to simultaneously, at interval or the LED that lights in turn in first led array consuming time altogether with overall equilbrium identification moment power consumption and identification.
According to detection recognition methods provided by the invention, have more excellent detection effect and less LED, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
First led array that is electrically connected with card learning machine CPU in the setting of card learning machine and second led array, first led array only are used for luminous, and a LED of first led array corresponds to a plurality of LED in second array.Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value; Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
According to detection recognition methods provided by the invention, described one group or a sequence reflex block include, but are not limited to be made of black or white reflex block.
According to detection recognition methods provided by the invention, described one group or a sequence reflex block include, but are not limited to be made of black, grey or white reflex block.
According to detection recognition methods provided by the invention, it is triangle, rectangle or circle that described reflex block includes, but are not limited to.
According to detection recognition methods provided by the invention, LED is of the same type in first led array and second led array.
Toy for children card provided by the invention detects recognition methods, has following progress than prior art:
1, use LED to detect, cost is low, and the accuracy height;
2, use LED to detect, do not have life problems with respect to mechanical detection;
3, use LED to detect, can deceive, in vain, the coding of gray scale more than three kinds even three kinds such as ash, available less I/O detects the card of a greater number, detects each switch correspondence with respect to mechanical switch and has only the efficient of " 1 ", " 0 " higher.
Description of drawings
Further the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a total system block diagram of the present invention;
Fig. 2 is the synoptic diagram of the corresponding a kind of card that uses of the present invention;
Fig. 3 is first kind of led array arrangement of the present invention synoptic diagram;
Fig. 4 is second kind of led array arrangement of the present invention synoptic diagram;
Fig. 5 is the arrangement synoptic diagram of the third led array of the present invention.
Embodiment
At first, specific implementation of the present invention is described:
㈠ scheme one is as Fig. 1,2,3
May further comprise the steps:
⑴ for the I/O mode, and the N utmost point of all LED in first led array is connected respectively to the I/O mouth of CPU, and the I/O port of CPU is set, with this port arrangement be high resistant or weak on draw input, and be set to the output of effective low level and be used to light LED; For the A/D mode, the P utmost point of the LED in first led array is connected respectively to the I/O mouth of CPU, and this port is a multiplex mode, is set to output, and exports effective high level and be used to light LED;
⑵ for the I/O mode, and the N utmost point of all LED in second led array is connected respectively to the I/O mouth of CPU, and method to set up is with step ⑴; For the A/D mode, the P utmost point of all LED in second led array is connected respectively to the I/O mouth of CPU, and method to set up is with step ⑴;
⑶ for the I/O mode, and the P utmost point of all LED is connected to a triode or a field effect transistor by CPU control after by current limiting measures in first led array, and the state that this triode or field effect transistor are out when for luminance is for LED powers up; The connection end point of these current limiting measures and triode or field effect transistor is by the resistance eutral grounding that resistance is relatively large simultaneously; For the A/D mode, the N utmost point of all LED is connected to ground after by current limiting measures in first led array;
⑷ second led array is provided with step ⑶, and as a supplement, when being detected state under the I/O mode, triode or field effect transistor are off state, and the P utmost point of LED is equivalent to ground connection, and the photocurrent of generation flows out from the P utmost point, and the N utmost point flows into;
⑸ be made as luminance with first led array, and second led array is made as detected state;
⑹ the I/O mouth in first led array is set to low, lights the LED in first led array, and interference and reduction moment power consumption can be selected to light in turn or light at the interval in order to reduce; For the A/D mode, the output high level is lighted LED;
⑺ be set to output and output high level for the I/O mode, and the equivalent capacity of circuit and element is charged; Be set to low level so that this equivalence electric capacity is carried out discharge process for the A/D mode;
⑻ for the I/O mode, and I/O is set to the high resistant input after having charged, and the variation of monitoring I/O incoming level; The direction of photocurrent has been described among the step ⑷, and along with reflected light acts on this LED, this LED photocurrent size corresponding with light intensity measured the gray scale situation that this time can quantize reflecting surface promptly corresponding to the time of the discharge of equivalent capacity under this photocurrent effect; For the A/D mode, I/O is set to analog input, and Direct-detection Optical voltage is calculated the gray scale situation of reflecting surface by the size of photovoltage;
Reflection receives reflection ray with LED of the same type to the light that described LED sends again through card face, the photocurrent that produces acts on the I/O mouth of CPU, overturn after making I/O mouth level through one period relevant, and handle this time span to obtain the gray scale of detected card face by CPU with the photocurrent size; After inserting card, form the darkroom to shield most extraneous light by stopping of card self, send light by LED, again by the reflected light of the close LED that is used to detect reception from card face, when reflecting surface when black, white or grey, catoptrical intensity difference, and record this difference is used to discern the gray scale situation of the reflex block of printing.
As preferably: the I/O status detection of CPU comprises inquiry and interrupts two kinds of forms.
As preferably: the mode of using the I/O mouth to carry out measuring discharge time comprises: in timeslice 1, the state of I/O is for output and export the state " 1 " of effective high level, and total equivalent capacity is filled with the I/O voltage of " 1 "; In timeslice " 2 ", the I/O mouth is set to out leak input, and total equivalent capacity is discharged under the effect of photocurrent, and the voltage on elapsed time " t " the back I/O mouth is reduced to the threshold value and the upset of low level " 0 ", by I/O mouth input " 0 ";
As preferably: the measurement of time " t " comprises to be used timer and uses the mode of fixed length time-delay directly or indirectly to measure.
As preferably: be used to launch and one group of LED detecting is the of the same type of non-infrared tube, comprise: emission simultaneously or the one group of LED that detects, timesharing emission and the one group of LED that detects.
As preferably: a side surface of toy for children card is printed with the gray scale bar code; The array configuration of described gray scale bar code comprises that the bar shaped of rule distributes, the fan-shaped distribution of rule, and erose distribution.
As preferably: LED luminous and detecting choose with timesharing luminous and detect, simultaneously luminous and detect a kind of; Described CPU detects photovoltage with A/D, perhaps detects photocurrent with timer equivalent capacitor charge and discharge is caused I/O mouth level bound-time, realizes the detection after the opto-electronic conversion.
As preferably: described LED realizes that the detection mode after the opto-electronic conversion selects following a kind of mode for use:
⑴ use total equivalent capacity of I/O mouth, cabling and the LED of CPU, or increase the total equivalent capacity after the actual capacitance, the time detecting that this total equivalent capacity is discharged and recharged again;
⑵ record light intensity by the time of discharging and recharging to total equivalent capacity, and detection method comprises the time of measuring charging, also comprises the time of discharge.
㈡ scheme two is as Fig. 1,2,4
Be the detection method of described use LED to the toy for children card, its special character is, may further comprise the steps:
⑴ CPU controls the LED 43 of first led array, the light on and off of LED44;
⑵ the LED41,42 of second led array is used for detecting, and for the I/O mode, is set to output and output high level, and the equivalent capacity of circuit and element is charged, and for the A/D mode, is set to low level this equivalence electric capacity is carried out discharge process;
⑶ for the I/O mode, and I/O is set to the high resistant input after having charged, and the variation of monitoring I/O incoming level; For the A/D mode, I/O is set to analog input, and Direct-detection Optical voltage is calculated the gray scale situation of reflecting surface by the size of photovoltage;
㈢ scheme three is as Fig. 1,2,5
May further comprise the steps:
⑴ the LED 55 of first led array is used for luminous, and LED 51, the LED52 of second led array, LED53, LED54 are used for detecting;
⑵ be set to output and output high level for the I/O mode, and the equivalent capacity of circuit and element is charged, and for the A/D mode, is set to low level this equivalence electric capacity is carried out discharge process;
⑶ for the I/O mode, and I/O is set to the high resistant input after having charged, and the variation of monitoring I/O incoming level; For the A/D mode, I/O is set to analog input, and Direct-detection Optical voltage is calculated the gray scale situation of reflecting surface by the size of photovoltage;
The second, remake in conjunction with the accompanying drawings and be described in further detail the present invention:
Fig. 1, Fig. 2, Fig. 3 show first embodiment of the present invention.
See also shown in Figure 1ly, Fig. 1 is a total system block diagram of the present invention, includes the CPU 11 and first led array, second led array.The LED optical detection system comprises: first led array, second led array.Wherein CPU 11 is connected by GPIO or A/D 15 with first led array, second led array, and first led array, second led array are realized related under the reflection of reflecting surface by light 14.
See also shown in Figure 2ly, be used for the print pattern 21 and the content pattern 22 that are used to discern on card 23 that LED detects and the card.
See also shown in Figure 3ly, Fig. 3 is first kind of led array arrangement, comprises LED31, LED32, LED33, LED34, is the preferential led array arrangement mode of selecting of the present invention, and this programme can use minimum LED.The concrete LED arrangement mode 31～34 that is used for led array.
For Fig. 3, first led array and second led array are in full accord, and by the cooperation of sequential, when making first led array luminous, second led array is used for detecting.In the present embodiment, described use LED may further comprise the steps the detection method of toy for children card:
⑴ for the I/O mode, and the N utmost point of LED 31, LED33 is connected respectively to the I/O mouth of CPU in first led array, and the I/O port is set, require this port can be configured to high resistant or weak on draw input, and can be set to the output of effective low level and be used to light LED; For the A/D mode, the P utmost point of LED 31, LED33 in first led array is connected respectively to the I/O mouth of CPU, and requiring this port is multiplex mode, can be set to output, and exportable effective high level is used to light LED;
⑵ for the I/O mode, and the N utmost point of LED 32, LED34 in second led array is connected respectively to the I/O mouth of CPU, and method to set up is with step 1; For the A/D mode, the P utmost point of LED 32, LED34 in second led array is connected respectively to the I/O mouth of CPU, and method to set up is with step 1;
⑶ for the I/O mode, and the P utmost point of all LED 31, LED33 is connected to a triode or a field effect transistor by CPU control after by certain current limiting measures in first led array; The connection end point of these current limiting measures and switching tube is by the resistance eutral grounding that resistance is relatively large, such as 1K Ω simultaneously.For the A/D mode, the N utmost point of LED 31, LED33 is connected to ground after by certain current limiting measures in first led array;
⑷ second led array is provided with step 3; As a supplement, when being detected state under the I/O mode, switching tube is an off state, and the P utmost point of LED is the photronic positive pole that LED photoelectric effect forms;
⑸ be made as luminance and detected state with first led array, second led array in turn;
⑹ for the I/O mode, and I/O is set to the high resistant input after having charged, and the variation of monitoring I/O incoming level; The time of level saltus step from high to low is promptly corresponding to the photocurrent size of light intensity correspondence, measures the gray scale situation that this time promptly knows reflecting surface.For the A/D mode, I/O is set to analog input, and Direct-detection Optical voltage is calculated the gray scale situation of reflecting surface by the size of photovoltage.
Fig. 1, Fig. 2, Fig. 4 show second embodiment of the present invention.
See also shown in Figure 4ly, Fig. 4 is second kind of led array arrangement, comprises LED41, LED42, LED43, LED44, and this programme can have best recognition effect.The concrete LED arrangement mode 41～44 that is used for led array.
For Fig. 4, LED 43, the LED44 of first led array is used for luminous, and LED 41, the LED42 of second led array is used for detecting.
In the present embodiment, described use LED may further comprise the steps the detection method of toy for children card:
⑴ CPU controls the LED 43 of first led array, the light on and off of LED44;
⑵ LED41, the LED42 of second led array is used for detecting, and for the I/O mode, is set to output and output high level, and the equivalent capacity of circuit and element is charged, and for the A/D mode, is set to low level this equivalence electric capacity is carried out discharge process;
For the I/O mode, I/O is set to the high resistant input after having charged, and the variation of monitoring I/O incoming level.For the A/D mode, I/O is set to analog input, and Direct-detection Optical voltage is calculated the gray scale situation of reflecting surface by the size of photovoltage.
Fig. 1, Fig. 2, Fig. 5 show the 3rd embodiment of the present invention.
See also shown in Figure 5ly, Fig. 5 is the arrangement of the third led array of proposing of the present invention, comprises LED51, LED52, LED53, LED54, LED55, recommends to use as the modified of second kind of scheme set forth above.The arrangement of this led array is used for the concrete LED arrangement mode 51～55 of led array.
In the present embodiment, described use LED may further comprise the steps the detection method of toy for children card:
⑴ the LED 55 of first led array is used for luminous, and LED 51, the LED52 of second led array, LED53, LED54 are used for detecting;
⑵ be set to output and output high level for the I/O mode, and the equivalent capacity of circuit and element is charged, and for the A/D mode, is set to low level this equivalence electric capacity is carried out discharge process;
⑶ for the I/O mode, and I/O is set to the high resistant input after having charged, and the variation of monitoring I/O incoming level; For the A/D mode, I/O is set to analog input, and Direct-detection Optical voltage is calculated the gray scale situation of reflecting surface by the size of photovoltage.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (10)
1. a toy for children card detects recognition methods, it is characterized in that, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
First led array and second led array be electrically connected with card learning machine CPU is set at the card learning machine;
Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
2. according to the described detection recognition methods of claim 1, it is characterized in that, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
First led array and second led array be electrically connected with card learning machine CPU is set at the card learning machine;
Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Second led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by first led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
3. according to the described detection recognition methods of claim 2, it is characterized in that described card learning machine CPU simultaneously, at interval or light LED in first led array or second led array in turn.
4. according to the described detection recognition methods of claim 1, it is characterized in that, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
At first led array and second led array that the setting of card learning machine is electrically connected with card learning machine CPU, first led array is consistent with LED number in second led array;
Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Second led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by first led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
5. according to the described detection recognition methods of claim 4, it is characterized in that described card learning machine CPU simultaneously, at interval or light LED in first led array in turn.
6. according to the described detection recognition methods of claim 1, it is characterized in that, may further comprise the steps:
Print one group or a sequence reflex block at toy for children card single or double;
At the card learning machine first led array and second led array be electrically connected with card learning machine CPU is set, first led array only is used for luminous, and LED number unanimity or different in first led array and second led array;
Described toy for children card is inserted in the described card learning machine, wherein: the position light path of described led array and described reflex block is connected;
First led array is lighted in described card learning machine CPU control, form the different reflected light of intensity after shining described reflex block, receive by second led array again and be converted to electric signal, measure described electric signal and be converted to corresponding numeral according to it and the comparative result of corresponding threshold value;
Numeral according to described conversion generates Serial No.;
The described Serial No. that generates is identified as the identify label number of described toy for children card correspondence.
7. according to claim 1,2,4 or 6 described detection recognition methodss, it is characterized in that described one group or a sequence reflex block are made of black or white reflex block.
8. according to claim 1,2,4 or 6 described detection recognition methodss, it is characterized in that described one group or a sequence reflex block are made of black, grey or white reflex block.
9. according to claim 1,2,4 or 6 described detection recognition methodss, it is characterized in that described reflex block is rectangle, polygon or circle.
10. according to claim 1,2,4 or 6 described detection recognition methodss, it is characterized in that LED is of the same type in first led array and second led array.
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| CN2011101918924A CN102254143A (en) | 2011-07-11 | 2011-07-11 | Method for detecting and identifying toy card for children |
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| CN2011101918924A CN102254143A (en) | 2011-07-11 | 2011-07-11 | Method for detecting and identifying toy card for children |
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| CN103793673A (en) * | 2014-02-14 | 2014-05-14 | 广东小天才科技有限公司 | Method and device for identifying card based on near-field communication (NFC) and NFC system |
| CN106462776A (en) * | 2014-06-10 | 2017-02-22 | 日本电产三协株式会社 | Card receptacle and card reader |
| CN110996438A (en) * | 2019-11-12 | 2020-04-10 | 珠海格力电器股份有限公司 | Display device and method based on IO module and robot |
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| CN1695156A (en) * | 2002-09-26 | 2005-11-09 | 吉田健治 | Information reproduction/i/o method using dot pattern, information reproduction device, mobile information i/o device, and electronic toy |
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Application publication date: 20111123 |