JP2013172934A - Touch information read system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch information read system that can be prevented from being contacted with a human body at a detection part which detects a card utilizing capacitance change, the contact being a cause of erroneous detection and that also eliminates the need of a different detection means of a barcode or the like, thereby achieving inexpensive configuration of a device.SOLUTION: A touch information read system includes: a card 3 in which a detection area and a touch area are separately arranged, conductive terminals of an array different for each type of the card 3 are arranged in the detection area, and a plurality of regions that an operator is to touch are arranged and formed in a visible state in the touch area; and a touch information reader 9 in which a card detection means for detecting capacitance change in association with the conductive terminals in the detection area and a touch detection means for detecting the capacitance change which is based on the touch operation of an operator in association with the regions in the touch area are arranged in a mounting area for placing the card 3, and a protective cover 7 is provided in a range of covering the detection area when the card 3 is mounted on the mounting area. A reference value for detecting the capacitance change is controlled and the identification of the mounted card 3 and the identification of the region touched by the operator are discriminated.

Description

  The present invention relates to a touch information reading system that extracts information given to a card without malfunction based on a change in capacitance.

  Conventionally, a technique using capacitance change has been adopted for sensing various operations and card detection. In addition, a touch information reading technique that detects a change in capacitance generated at the position of a card portion touched by a finger and uses it as a switch is widely used. Furthermore, even if the capacitance detection unit is arranged at the same position, a touch information reading device that is used as a switch function in accordance with the sheet or card can be widely used by replacing the sheet or card on which the contact position is printed. ing.

  As a card using capacitance change and the card detection, conductive ink is printed at a plurality of specific positions on the card substrate sheet, and an individual arrangement pattern is configured by a combination of the presence or absence of printing. A card having a difference in capacitance between the detection unit and the presence / absence of the conductive ink of the card by placing the detection unit on the detection unit has been proposed (Patent Document 1). Answer example printed on a card for questions flowing through a speaker with a card on which an answer example such as a picture or character is printed at a position corresponding to the switch on a panel in which a plurality of switches are arranged as an information reading device An improvement relating to a toy or an educational device has been proposed in which the switch is turned on by pressing the key with a finger to determine whether the answer is correct (Patent Document 2).

  In addition, a conductor section is provided in an appropriate section by dividing into a plurality of sections, a card specified by a combination of conductor sections, and a capacitance divided into a plurality of blocks so as to correspond to the conductor section provided on the card A card that is constituted by a surface comprising a detection unit, and that performs a card game by specifying the type information of the card, the position and orientation of the card, by detecting the position facing the conductor part of the card due to the generation of capacitance A recognition game system has been proposed (Patent Document 3).

  JP-A-8-55207   JP-T 8-509133   JP 2005-296383 A

  The conventional card is provided with only a detection terminal for specifying the card placed on the card detection unit, and the touch information reading device is used by the user to specify an answer example printed on the card. In order to determine whether or not the answer is correct by making contact with the card, the card is provided with only a touch terminal. In addition, when detecting a conductive part placed on or on the surface of the card, if the hand is still in contact with the card surface, the card detection means may mistakenly recognize that there is a conductive part in the part touched when the card is detected. There is a problem that the card cannot be recognized correctly, and there is a restriction that the card must not be touched when the card is detected.

  Further, the touch information reading apparatus has a problem in that another detection means such as a barcode has to be used to identify a plurality of types of sheets and cards and images printed on the sheets and cards. .

  Therefore, the present invention can prevent contact of a human body causing a false detection in a detection unit that performs card detection using capacitance change, and uses capacitance change in a touch information reading device. By providing the card detection unit, it is a technical problem to configure the apparatus at a low cost without using another detection means such as a barcode.

  The technical problem can be solved by the present invention as follows.

  In the touch information reading system according to the present invention, a detection area for specifying a card type and a touch area for an operator to perform a contact operation are arranged separately, and in the detection area, a conductive array having a different arrangement for each card type is arranged. A terminal is arranged, and a card formed by arranging a plurality of parts in contact with the operator in a visually recognizable state in the touch area, and a capacitance corresponding to the conductive terminal of the detection area in the placement area where the card is placed A card detection means for detecting a change and a touch detection means for detecting a change in capacitance based on the contact operation of the operator in correspondence with a part of the touch area are arranged, and the card is placed in the placement area. Of a card placed by controlling a reference value for detecting a change in capacitance, comprising a touch information reading device provided with a card detection means protective cover in a range covering the detection area when In which the constant and the operator has to identify the specific and site of contact.

  Further, in the touch information reading system according to the present invention, the detection area for specifying the card type and the touch area for the operator to perform a contact operation are arranged separately, and the detection area has a different arrangement for each card type. Conductive terminals are arranged, and a plurality of parts in contact with the operator are arranged in a visually recognizable state in the touch area, and a static area corresponding to the conductive terminals in the detection area is placed on the placement area where the card is placed. A card detection means for detecting a change in capacitance and a touch detection means for detecting a change in capacitance based on the contact operation of the operator in correspondence with a part of the touch area are arranged, and the card is placed in the placement area. And a touch information reading device provided with a card detection means protective cover in a range covering the detection area when placed, and controlling the reference value for detecting the change in capacitance to The amount of change in capacitance obtained from the touch detection means and the amount of change in capacitance obtained from the touch detection means are detected to identify the card placed and the location of contact with the operator It is.

  According to the present invention, since the detection area for identifying the card type and the touch area where the operator performs the contact operation are separately provided on the card, the card type information and the contact information are provided on the card side. Can be granted.

  In addition, there is a risk of touching the detection area by providing a detection area on the card side. In order to solve this, a card detection means protective cover is provided in the placement area where the card is placed, and the card detection part is detected during capacitance detection. Since the structure prevents contact with the card, erroneous detection of card detection can be prevented.

  Furthermore, since the reference value for detecting the capacitance change is controlled, the capacitance change amount obtained from the card detection means and the capacitance change amount obtained from the touch detection means are separately detected. Can do.

  1 is a perspective view illustrating a touch information reading system according to an embodiment of the present invention.   It is a perspective view explaining the card | curd in one embodiment of this invention.   It is a perspective view explaining the touch information reading apparatus in one embodiment of this invention.   FIG. 4 is a block circuit diagram of the touch information reading device shown in FIG. 3.   It is a flowchart figure explaining the program which controls the touch information reading apparatus shown in FIG.   It is a fragmentary longitudinal cross-sectional view of the touch information reading apparatus explaining a card | curd detection means protective cover.   It is a perspective view explaining the detection area | region of a card | curd.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 2, the touch information reading system according to the present embodiment (see FIG. 1) separately arranges a detection area 1 for specifying a card type and a touch area 2 where an operator performs a contact operation. 3 and a card detection pad (card detection means) 5 for detecting a change in capacitance provided in the placement area 4 where the card 3 is placed in correspondence with the detection area 1 of the card 3 as shown in FIG. And a touch detection pad (touch detection means) 6 for detecting a change in capacitance based on the contact operation of the operator provided corresponding to the touch area 2 and a range covering the detection area 1 when the card 3 is placed A touch information reading device (hereinafter also referred to as “reading device”) 9 including a card detection means protective cover (hereinafter also referred to as “protective cover”) 7 and a speaker 8 that outputs the result of the contact operation. And consists of To have.

  In the detection area 1 of the card 3, conductive terminals 10 for specifying the card type are arranged in a different arrangement for each card type, and in the touch area 2, an image, a character, a figure or the like is formed as a push button. A plurality of selection markers (parts) 11 that are drawn by the operator and contact selectively are formed side by side in a visually recognizable state.

  Therefore, the arrangement of the card detection pads 5 arranged in the placement area 4 of the reading device 9 corresponds to the arrangement pattern of the conductive terminals 10 provided in all the cards 3 placed in the placement area 4. The arrangement of the touch detection pads 6 includes the arrangement patterns of the selection markers 11 formed on all the cards 3 correspondingly. For example, in the reading device 9 in which the card detection pads 5 are arranged in an orderly manner as shown in FIG. 3, the conductive terminals 10 corresponding to the arrangement of the card detection pads 5 are shown in FIG. As a pattern in which a detection area 1 having an area that can be arranged in an orderly manner is provided and the type of the card 3 can be specified, for example, two conductive terminals 10 are formed side by side, and one is formed, followed by one. One array pattern is formed, and one array pattern is formed and arranged (in terms of binary numbers, "110101" array pattern that can be expressed without the presence of the conductive terminal 10, see FIG. 2). Can do.

  As shown in FIG. 4, the reader 9 has a built-in control circuit that identifies the card 3 placed and the part 11 in contact with the operator. Then, the control circuit acquires a capacitance change amount generated in each of the card detection pads 5 and the touch detection pads 6 (hereinafter also simply referred to as “IC”). 12 and a reference value for detecting a capacitance change, and a capacitance change amount obtained from the card detection pad 5 and a capacitance change amount obtained from the touch detection pad 6 were detected and placed. The CPU 13 controls the IC 12 in accordance with a control program for identifying the card 3 and the selection marker 11 touched by the operator, the ROM 14 for storing the control program, voice data, and the like, and generated by the control of the CPU 13. A RAM 15 for storing data and various data generated when the operator places the card 3 on the reading device 9 and operates it, and by the operation of the operator A speaker 8 that outputs live sound via a sound decoder 16 and a speaker amplifier 17 under the control of the CPU 13 is configured. The operator controls the card 3 to place the card 3 under the control of the CPU 13. The IC 12 detects a change in capacitance of each card detection pad 5 when the conductive terminal 10 of the card 3 comes close to the card detection pad 5 and transmits change data of the capacitance to the CPU 13. The received CPU 13 compares the pattern information stored in advance in the ROM 14 based on the information of each card detection pad 5 whose capacitance has changed, and which type of card 3 is set in the placement area 4 of the reader 9. The type of the card 3 is determined, the information of the card 3 is temporarily stored in the RAM 15, and touched by the contact operation of the operator. For example, when the operator's finger approaches the detection pad 6, the touch detection pad 6 is identified based on the specified card 3 stored in the RAM 15 based on the information of the card detection pad 5. Sound and the like are reproduced from the speaker 8 according to the program stored in the ROM 14.

  Reference numeral 18 denotes a power source for supplying power to the control circuit formed by wiring the IC 12, CPU 13, ROM 14, RAM 15, and the like, and a dry battery, a rechargeable secondary battery, an AC adapter, or the like can be used. Further, a rewritable EEPROM 19 may be provided to store the type of the card 3 to be used and the type of the card 3 to be used and the card 3 to be used as a history, and an audio decoder 16, speaker amplifier 17 and speaker 8. The output means may be only the LCD 20, and when the speaker 8 is mounted, the LCD 20 may be omitted. Further, the ROM 14, the RAM 15, and the IC 12 may be built in and integrated with the CPU 13.

  Further, the card 3 may be a cardboard, a resin panel, or a flexible sheet, regardless of the material of the card 3. In addition, the conductive terminal 10 is printed with carbon black in a specific pattern for each type of card 3, and C (cyan), M (magenta), and Y (yellow) inks are superimposed on the detection area 1 other than the conductive terminal 10. At first glance, the detection region 1 may appear to be black on one side when printed in black, which is formed together. In addition, carbon black is not printed on the touch area 2, and a picture of a desired character, symbol, switch, or the like is printed as a selection marker 11 with C (cyan), M (magenta), or Y (yellow) ink. Good. Further, a color such as gold or silver may be used as long as it does not cause erroneous detection in the capacitance change. Further, the conductive terminal 10 may be disposed on a layer in the card or a surface layer on one side of the card, or on both sides of the card or on the inner layer. In order to increase the capacitance change, it is preferable to arrange the conductive terminals 10 on both sides and the inner layer of the card. However, the size of the card detection pad 5 on the reader 9 side is sufficiently increased so that only one side of the card is arranged. May be.

Furthermore, you may arrange | position the conductive terminal 10 of a different arrangement | sequence pattern using both surfaces of the card | curd 3. FIG. When the conductive terminals 10 are provided on both sides of the card 3, it is preferable to use a code that does not have a symmetrical arrangement pattern because it is impossible to identify the front and back if it is reversed and symmetrical. For example, in the touch information reading system in which the type of the card 3 is specified by the six conductive terminals 10 in the array pattern, when the card 3 is used on both sides in a combination of 64 patterns of 6 bits, the card 3 The combination of left and right symmetrical patterns that have the same arrangement pattern on the front and back sides of 3 is symmetrical when the conductive terminal 10 is composed of 6 bits, “000000”, “100001”, “010010”, “101101”, There are eight arrangement patterns “110011”, “001100”, “011110”, and “111111”, and these should not be used when the card 3 is used on both sides. That is, the conductive terminal 10 is the case of 2n bit (n is an integer), symmetrical pattern that can not be used is ^{the 2 n,} conductive parts (n is an integer) 2n + 1 bit becomes case 2 ^{(2 n)} pieces of.

  Next, the operation will be described based on the control program shown in FIG.

  When the power source 18 of the touch information reading device 9 is turned on (step S01), in order to detect whether the card 3 is placed or not, the detection value of the IC 12 is set to a predetermined conductive terminal under the control of the CPU 13. When the detection capacitance change threshold (card detection reference value) is set (step S02) and the capacitance change in the card detection pad 5 is continuously monitored by the IC 12, and a capacitance change exceeding the threshold occurs. Determines that the card 3 is placed in the placement area 4 (step S03), and recognizes the arrangement pattern of the conductive terminals 10 of the card 3 from the arrangement pattern of the card detection pads 5 exceeding the threshold value under the control of the CPU 13. Then, the type of the card 3 is identified and specified based on the arrangement pattern, and the information data of the selection marker 11 stored corresponding to the specified card 3 is stored. The data read from the ROM14 and waits by temporarily stored in the RAM 15 (step S04).

  Subsequently, in order to detect whether or not the operator has performed a contact operation on the selection marker 11, the detection value of the IC 12 is determined in advance by the control of the CPU 13 under a predetermined touch detection capacitance change threshold (touch). (Reference value for detection) (step S05), and if the capacitance change in the touch detection pad 6 continues to be monitored by the IC 12 and the capacitance change exceeds the threshold value (step S06), the touch exceeding the threshold value is reached. The selection marker 11 of the card 3 corresponding to the detection pad 6 is specified from the arrangement position of the selection marker 11 of the card 3 already specified, and the specified selection marker 11 and the selection marker 11 stored in the RAM 15 are identified. Information data prepared based on whether or not they match is output from the speaker 8 (step S07).

  Thereafter, it is determined again whether or not a capacitance change exceeding the touch detection capacitance change threshold has occurred (step S08). If a capacitance change exceeding the touch detection is newly detected, the process proceeds to step S06. If the jump is made and no further change in capacitance is detected after the predetermined time has elapsed, the process jumps to step S02.

  In the present embodiment, the card 3 placed on the placement area 4 is separately provided on the card 3 separately from the detection area 1 for specifying the type of the card 3 and the touch area 2 on which the operator performs a contact operation. 3 is provided with a card detection means protective cover 7 so that it cannot be touched at the time of capacitance detection, so that the card type information is contacted on the card side. Since the reference value for detecting the capacitance change can be controlled, the capacitance change amount obtained from the card detection pad 5 and the capacitance obtained from the touch detection pad 6 are controlled. The capacitance change amount can be detected separately, and the touch information reading system can be configured at low cost.

Modification 1

  This example is a modification of the above embodiment, and when the card 3 is placed on the placement area 4 of the touch information reader 9 as shown in FIG. By inserting the detection area 1 of the card 3 between them, the card 3 is placed on the back surface of the cover 7 so that the detection area 1 is placed between the cover 7 and the card detection pad 5. Is provided and a leaf spring 21 is provided to prevent the card 3 from being displaced during operation. By providing the leaf spring 21 that holds down the detection area of the card 3, the conductive terminal 10 and the card detection pad 5 are closer to each other, and it becomes easier to detect the change in the capacitance, so that it can be detected well and stably. it can.

Modification 2

  This example is a modification of the above-described embodiment. As shown in FIG. 7, a conductive part in which the conductive terminal 10 is connected to the detection region 1 of the card 3 in order to increase the capacitance change of the conductive terminal 10. An area 22 is provided, and a ground pattern (not shown) is provided at a position of the placement area 4 corresponding to the conductive area 22 when the card 3 is placed on the placement area 4 of the touch information reading device 9. It is a thing. Thereby, further better detection can be realized.

  According to the present invention, the card type information and the contact information are given to the card side, and the capacitance change amount obtained from the card detection means and the capacitance change amount obtained from the touch detection means are separately detected. Since it was made to do, it can utilize for the information processing apparatus of various uses, a toy, or a teaching tool using various cards with one touch information reader.

1 detection area 2 touch area 3 card 4 placement area 5 card detection pad (card detection means)
6 Touch detection pad (touch detection means)
7 Protective cover (Card detection means protective cover)
8 Speaker 9 Touch information reader 10 Conductive terminal 11 Selection marker (part)
12 Capacitance change detection IC
13 CPU
14 ROM
15 RAM
16 Audio decoder 17 Speaker amplifier 18 Power supply 19 EEPROM
20 LCD
21 leaf spring 22 conductive region

Claims (2)

  The detection area for specifying the card type and the touch area where the operator performs a contact operation are arranged separately. In the detection area, conductive terminals of different arrays are arranged for each type of card, and the touch area is arranged in the touch area. A card formed by arranging a plurality of parts to be contacted by the operator in a visually recognizable state; a card detecting means for detecting a change in capacitance corresponding to a conductive terminal of the detection area in a placement area where the card is placed; and the touch A touch detection unit configured to detect a change in capacitance based on a contact operation of the operator in correspondence with a part of the region, and a range covering the detection region when the card is placed in the placement region And a touch information reading device provided with a protective cover for card detection means, and the specification of the card placed by controlling the reference value for detecting the change in capacitance and the specification of the part touched by the operator. Knowledge Touch information reading system characterized by.   The detection area for specifying the card type and the touch area where the operator performs a contact operation are arranged separately. In the detection area, conductive terminals of different arrays are arranged for each type of card, and the touch area is arranged in the touch area. A card formed by arranging a plurality of parts to be contacted by the operator in a visually recognizable state; a card detecting means for detecting a change in capacitance corresponding to a conductive terminal of the detection area in a placement area where the card is placed; and the touch Touch detection means for detecting a change in capacitance based on the contact operation of the operator in correspondence with the region part, and in a range covering the detection area when the card is placed in the placement area A touch information reading device provided with a card detection means protective cover, and a capacitance change amount obtained from the card detection means by controlling a reference value for detecting the capacitance change and the touch detection. Touch information reading system is characterized in that identifying the site of a particular and a specific and operator of the variation amount of capacitance and detected and placed on the card to be obtained in contact from stage.

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