阅读说明：本技术 一种螺旋多选开关及包括该开关的智能便签系统 (Spiral multi-selection switch and intelligent note system comprising same ) 是由 童丹桂 于 2020-05-26 设计创作，主要内容包括：本发明特别涉及一种螺旋多选开关,包括开关底座、螺杆、电机、第一套筒以及限位单元,所述的开关底座中设置有内螺纹,螺杆位于开关底座的内螺纹中且螺杆的两端延伸至开关底座之外,螺杆的一端连接电机,限位单元设置在电机旁侧允许电机沿轴向位移且禁止电机周向转动,螺杆的另一端外周套设有第一套筒,螺杆上设置有正极片,第一套筒外周沿螺旋线路径上布置有多个负极片且该螺旋线路径的螺距和螺杆的螺距相等。并公开了利用该开关制成的智能便签系统。将多个负极片按照螺旋线路径进行布置,布置的数量非常多,适合档位需求大的场合,只需要让电机驱动螺杆转动即可换挡,螺杆上的正极片就会按照螺旋线路径方向运动并分别与不同的负极片连通,使用非常可靠。(The invention particularly relates to a spiral multi-selection switch which comprises a switch base, a screw rod, a motor, a first sleeve and a limiting unit, wherein internal threads are arranged in the switch base, the screw rod is positioned in the internal threads of the switch base, two ends of the screw rod extend out of the switch base, one end of the screw rod is connected with the motor, the limiting unit is arranged beside the motor and allows the motor to axially displace and prohibits the motor from circumferentially rotating, the first sleeve is sleeved on the periphery of the other end of the screw rod, a positive plate is arranged on the screw rod, a plurality of negative plates are arranged on the periphery of the first sleeve along a spiral line path, and the pitch of the spiral line path is equal to that of the screw rod. An intelligent note system made by the switch is also disclosed. Arrange a plurality of negative pole pieces according to the helix route, the quantity of arranging is very many, is fit for the big occasion of gear demand, only needs to let motor drive screw rotate and can shift gears, and positive plate on the screw rod will be according to helix route direction motion and communicate with the negative pole piece of difference respectively, uses very reliably.)

1. A spiral multi-selection switch is characterized in that: including switch base (21), screw rod (22), motor (23), first sleeve (24) and spacing unit, switch base (21) in be provided with the internal thread, screw rod (22) are arranged in the internal thread of switch base (21) and the both ends of screw rod (22) extend to outside the switch base, motor (23) are connected to the one end of screw rod (22), spacing unit sets up and allows motor (23) to follow axial displacement and forbid motor (23) circumferential direction at motor (23) side, the other end periphery cover of screw rod (22) is equipped with first sleeve (24), be provided with positive plate (221) on screw rod (22), first sleeve (24) periphery is arranged on the spiral line route and the pitch of a plurality of negative pole pieces (241) and this spiral line route equals with the pitch of screw rod (22).

2. The spiral multiple-selection switch of claim 1, wherein: the switch base (21) is square, the limiting unit is composed of a second sleeve (25), a first sleeve (24) and the second sleeve (25) are respectively fixed on two parallel side faces of the switch base (21), the cross section of the first sleeve (24) is circular, the cross section of the body of the motor (23) is non-circular and symmetrical, and the inner contour of the cross section of the second sleeve (25) is matched with the contour of the cross section of the motor (23).

3. The spiral multiple-selection switch of claim 2, wherein: holes are formed in the periphery of the first sleeve (24) along the spiral line path, the negative plate (241) is inserted into the holes, and the outer end of the negative plate (241) is provided with the holes to facilitate connection of a lead; the screw rod (22) is located and fixes on the one end terminal surface in first sleeve (24) and sets up positive plate (221), and positive plate (221) are including ring form body and arch, have seted up the through-hole on the ring form body of positive plate (221) and have supplied the fixed screw to pass, and the arch of positive plate (221) extends to the inner wall department of first sleeve (24) and contacts with negative pole piece (241).

4. The spiral multiple-selection switch of claim 3, wherein: the one end of the fixed positive plate (221) of screw rod (22) is provided with the counter bore, and the one end that switch base (21) was kept away from in first sleeve (24) is fixed to be provided with anodal guide arm (26), and anodal guide arm (26) extend to in the counter bore and the periphery of anodal guide arm (26) contacts with the inboard of the ring form body of positive plate (221), and anodal guide arm (26) are located the outer end of first sleeve (24) and are provided with protruding and have seted up the hole on the arch and be convenient for connecting wire.

5. An intelligent note system comprising the spiral multi-selection switch of claim 1, wherein: including drawing pin (10), picture peg (20), shell (50), spiral multiple-choice switch (30) and control module (40), shell (50) be used for holding picture peg (20), spiral multiple-choice switch (30) and control module (40), the memo is inserted through drawing pin (10) and is arranged in picture peg (20), be provided with sound production or luminous component in drawing pin (10), vertically and horizontally staggered's circuit has been arranged in picture peg (20), control module (40) switch on through a certain vertical line in spiral multiple-choice switch (30) control picture peg (20), a certain horizontal line and drawing pin (10) make drawing pin (10) sound or luminous realization remind.

6. The intelligent note system of claim 5, wherein: picture peg (20) include base (21), base (21) are square box-like, horizontal conducting strip (22) have been arranged from bottom to top in proper order in base (21), vertical conducting strip (23) and bubble cotton layer (24), a plurality of horizontal conducting strip (22) adjacent arrangement, a plurality of vertical conducting strip (23) adjacent arrangement, perpendicular each other of horizontal conducting strip (22) and vertical conducting strip (23), every horizontal conducting strip (22) and vertical conducting strip (23) all are provided with insulating outer (221), be provided with on the adjacent both sides periphery wall of base (21) and lead electrically conductive nail (25), lead electrically conductive nail (25) insert in the side of base (21) and switch on with horizontal conducting strip (22) or vertical conducting strip (23).

7. The intelligent note system of claim 6, wherein: the drawing pin (10) comprises an inner core (11), an insulating core sleeve (12), an outer core (13), a drawing pin shell (14) and LED lamp beads (15), wherein the inner core (11) and the outer core (13) are made of conductive materials; the inner core (11) comprises a first large-diameter section (111) and a first small-diameter section (112); the insulating core sleeve (12) is sleeved on the first small-diameter section (112) of the inner core (11), and the insulating core sleeve (12) comprises a second large-diameter section (121) and a second small-diameter section (122); the outer core (13) is sleeved on the second small-diameter section (122), and the outer core (13) comprises a third large-diameter section (131) and a third small-diameter section (132); one pin of the LED lamp bead (15) is inserted into the second small-diameter section (122) of the insulating core sleeve (12) and connected with the first small-diameter section (112) of the inner core (11), and the other pin of the LED lamp bead (15) is connected with the third large-diameter section (131) of the outer core (13); the first large-diameter section (111), the second large-diameter section (121) and the third small-diameter section (132) have the same outer diameter and jointly form a pin head of the drawing pin (10); the drawing pin shell (14) is sleeved on the outer sides of the third large-diameter section (131) and the LED lamp beads (15); the top of the drawing pin shell (14) is made of transparent materials or is provided with micropores for light rays of the LED lamp beads (15) to emit, the length of the third small-diameter section (132) of the outer core (13) is larger than the thickness of the foam layer (24), and the insulating core sleeve (12) is positioned between the transverse conductive adhesive tape (22) and the longitudinal conductive adhesive tape (23) when the drawing pin (10) is inserted into the plug board (20).

8. The intelligent note system of claim 7, wherein: the switch base (21) is square, the limiting unit is composed of a second sleeve (25), a first sleeve (24) and the second sleeve (25) are respectively fixed on two parallel side surfaces of the switch base (21), the section of the first sleeve (24) is circular, the section of the body of the motor (23) is non-circular and the inner contour of the section of the second sleeve (25) is matched with the contour of the section of the motor (23); holes are formed in the periphery of the first sleeve (24) along the spiral line path, the negative plate (241) is inserted into the holes, and the outer end of the negative plate (241) is provided with the holes to facilitate connection of a lead; a positive plate (221) is fixedly arranged on the end face of one end, located in the first sleeve (24), of the screw (22), the positive plate (221) comprises a circular body and a bulge, a through hole is formed in the circular body of the positive plate (221) and used for a fixing screw to pass through, and the bulge of the positive plate (221) extends to the inner wall of the first sleeve (24) and is in contact with the negative plate (241); the one end of the fixed positive plate (221) of screw rod (22) is provided with the counter bore, and the one end that switch base (21) was kept away from in first sleeve (24) is fixed to be provided with anodal guide arm (26), and anodal guide arm (26) extend to in the counter bore and the periphery of anodal guide arm (26) contacts with the inboard of the ring form body of positive plate (221), and anodal guide arm (26) are located the outer end of first sleeve (24) and are provided with protruding and have seted up the hole on the arch and be convenient for connecting wire.

9. The intelligent note system of claim 8, wherein: the drawing pin positioning system comprises a mobile terminal, wherein the mobile terminal is used for shooting a front image of a plug board (20) and processing the image to obtain position information of a drawing pin (10); a user sets reminding time for each drawing pin (10) on the mobile terminal, and the mobile terminal sends the position information of the drawing pin (10) to the control module (40) when any drawing pin (10) reaches the reminding time; the control module (40) drives the spiral multi-selection switch (30) to act according to the position information of the drawing pin (10), so that the transverse conductive adhesive tape (22) and the longitudinal conductive adhesive tape (23) at the position of the drawing pin (10) are respectively communicated with the anode and the cathode of the power supply and light the LED lamp beads (15) in the drawing pin (10).

10. The intelligent note system of claim 9, wherein: the mobile terminal acquires the position information of the pushpin (10) according to the following steps:

b1, shooting a front image of the plugboard (20) by the mobile terminal to obtain an original RGB image;

b2, performing trapezoidal correction on the RGB image;

b3, performing binarization processing on the corrected RGB image according to a set threshold value to obtain a black-and-white image, wherein a black area in the black-and-white image is a drawing pin (10) and a white area in the black-and-white image is a background;

b4, screening out a real pushpin area according to the area size of a black area in a black-and-white image;

b5, solving the minimum circumscribed rectangle of each real drawing pin area and obtaining the central position of the minimum circumscribed rectangle;

b6, dividing the plugboard (20) into square grids according to the number of the transverse conductive adhesive tapes (22) and the longitudinal conductive adhesive tapes (23), and acquiring grid numbers of the central positions of each real drawing pin area;

in B3, the threshold range is set according to the following steps:

b31, inserting a plurality of drawing pins (10) at any position on the inserting plate (20);

b32, shooting the front image of the plugboard (20) and performing trapezoidal correction;

b33, manually marking a pin area in the RGB after the trapezoidal correction;

b34, calculating a threshold value range according to the R, G, B value of each pixel of the marked pushpin area { [ R ]_MIN,R_MAX],[G_MIN,G_MAX],[B_MIN,B_MAX]80% -95% of the pixels have R, G, B values within a threshold range;

in B3, the pixel point of R, G, B value in the corrected RGB image within the threshold range is marked as 1, and the pixel point outside the threshold range is marked as 0.

Technical Field

The invention relates to the technical field of office supplies, in particular to a spiral multi-selection switch and an intelligent note system comprising the same.

Background

The note is a small portable paper, one side of the note is sticky, most of the note is yellow, and other bright colors are also available to meet the preference of young people, so that some contents such as writing notes and telephone numbers can be written at any time. Generally used for office and telephone recording. It can also be used to leave a message and inform others. The note board is a product specially used for sticking notes, is generally in a flat shape, is made of wood materials and is often provided with a frame. When the notepaper is used, the notepaper written by the user is fixed on the notepaper plate through the I-shaped nail. The note board is usually put in the office, or places desktop or subaerial through the support, or fixed mounting on the wall, and the note board on the market is mostly ordinary plate body at present, and the I-shaped nail also is ordinary nail, and the user often need initiatively go to look over the note that oneself remembered, like this when the user is busy, often can miss the affairs of record on the label, so urgently need a note system that can remind automatically.

In order to design the intelligent note system, a criss-cross line is particularly used for lighting a drawing pin, a multi-selection switch is needed to light the drawing pin at a specified position, the multi-selection switch is used for selecting one of the plurality of lines, and in the prior art, the multi-selection switch has many types, is rotary and linear, but has many defects: firstly, the number of switch gears is small, and a plurality of switches are arranged when a plurality of lines need to be selected; secondly, the existing multi-selection switches are mostly manual type, and the gears can be shifted by shifting with fingers and can not be shifted automatically; thirdly, most switches have low gear shifting speed and large abrasion, and cannot be suitable for occasions with quick response and long-term use.

Disclosure of Invention

The invention aims to provide a gear shifting device which has multiple gears, can automatically shift gears and can automatically shift gears.

In order to realize the purpose, the invention adopts the technical scheme that: the utility model provides a spiral switch that selects more, includes switch base, screw rod, motor, first sleeve and spacing unit, switch base in be provided with the internal thread, the screw rod is arranged in switch base's internal thread and the both ends of screw rod extend to outside the switch base, the motor is connected to the one end of screw rod, spacing unit sets up and allows the motor just forbids motor circumferential direction along axial displacement at the motor side, the other end periphery cover of screw rod is equipped with first sleeve, be provided with positive plate on the screw rod, the first sleeve periphery is arranged a plurality of negative pole pieces and the pitch on this helix route and the pitch of screw rod on the helix route footpath and is equal.

Compared with the prior art, the invention has the following technical effects: here arrange a plurality of negative pole pieces according to the helix route, quantity that can arrange is very much, is fit for the big occasion of gear demand to this kind of switch shifts gears also very easily, only needs to let motor drive screw rotate, and positive plate on the screw rod will move and communicate with the negative pole piece of difference respectively according to helix route direction, uses very reliably.

Another object of the present invention is to provide an intelligent note system including the aforementioned spiral multi-selection switch, which can conveniently implement a note reminding function.

In order to realize the purpose, the invention adopts the technical scheme that: including drawing pin, picture peg, shell, spiral multiple choice switch and control module, the shell be used for holding picture peg, spiral multiple choice switch and control module, the structure of spiral multiple choice switch is as before, the memo inserts through the drawing pin and arranges in on the picture peg, is provided with sound production or luminous component in the drawing pin, has arranged vertically and horizontally staggered's circuit in the picture peg, control module switches on through a certain vertical line, a certain horizontal line and drawing pin in the spiral multiple choice switch control picture peg and makes the drawing pin sound production or luminous realization remind.

Compared with the prior art, the invention has the following technical effects: through set up vertically and horizontally staggered's circuit and many select switches in the picture peg, just so can realize that the independent of every drawing pin lights on the picture peg, when using, sets for a count-down to every drawing pin, and the count-down time of a certain drawing pin has arrived, can realize that this drawing pin sends the warning through control module control spiral many select switch action, and this device simple structure is very convenient for use.

Drawings

FIG. 1 is a schematic perspective view of a spiral multiple-selection switch;

FIG. 2 is a partial cross-sectional view of the spiral multiple selection switch;

FIG. 3 is a schematic diagram of an explosive structure of the intelligent note system;

FIG. 4 is a schematic perspective view of the intelligent note system, wherein the back plate is not shown;

FIG. 5 is a schematic structural view of the interposer;

FIG. 6 is a schematic diagram of an exploded structure of a pushpin;

figure 7 is a cross-sectional view of the pushpin.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 7.

Referring to fig. 1 and 2, a spiral multi-selection switch, including switch base 21, screw rod 22, motor 23, first sleeve 24 and spacing unit, switch base 21 in be provided with the internal thread, screw rod 22 is arranged in switch base 21's the internal thread and the both ends of screw rod 22 extend to outside the switch base, motor 23 is connected to screw rod 22's one end, spacing unit sets up and allows motor 23 along axial displacement and forbid motor 23 circumferential direction at motor 23 side, screw rod 22's other end periphery cover is equipped with first sleeve 24, be provided with positive plate 221 on the screw rod 22, first sleeve 24 periphery is arranged a plurality of negative plates 241 along the spiral line route and the pitch of this spiral line route equals with the pitch of screw rod 22. Here, the plurality of negative pole pieces 241 are arranged according to the spiral path, the number of the negative pole pieces 241 can be very large, the switch is suitable for occasions with large gear requirements, the gear shifting is very easy, only the motor 23 needs to drive the screw rod 22 to rotate, the positive pole pieces 221 on the screw rod 22 move according to the spiral path direction and are respectively communicated with the different negative pole pieces 241, and the switch is very reliable in use.

Further, the switch base 21 is square, the limiting unit is composed of a second sleeve 25, the first sleeve 24 and the second sleeve 25 are respectively fixed on two parallel side surfaces of the switch base 21, the square switch base 21 is very convenient to arrange the first sleeve 24 and the second sleeve 25, and can also be conveniently fixed on other components, for example, in the invention, the square switch base 21 is provided with a mounting hole. The section of the first sleeve 24 is circular, the section of the body of the motor 23 is non-circular and symmetrical, and the inner contour of the section of the second sleeve 25 is matched with the section contour of the motor 23, so that after the arrangement, the motor 23 can only be ensured to move horizontally in the second sleeve 25 along the axis direction without rotating, and the second sleeve 25 is adopted to form a limiting unit, so that the structure is very simple, and the use is very reliable.

Preferably, the hole has been seted up along the helix route in first sleeve 24 periphery, and negative pole piece 241 inserts and arranges in this hole and the outer end of negative pole piece 241 is provided with the hole and is convenient for connecting wire, after setting up like this, negative pole piece 241 is not made with first sleeve 24 an organic whole, and it is very convenient to process, only needs first processing out first sleeve 24 earlier, then has seted up a plurality of holes along the helix route in its periphery, at last insert the negative pole piece 241 that processes alone in the hole can. The positive plate 221 is fixedly arranged on the end face of one end, located in the first sleeve 24, of the screw 22, the positive plate 221 comprises a circular body and a protrusion, a through hole is formed in the circular body of the positive plate 221 to enable a fixing screw to penetrate through the through hole, the protrusion of the positive plate 221 extends to the inner wall of the first sleeve 24 and contacts with the negative plate 241, and after the positive plate 221 is arranged, the positive plate 221 is very firm and reliable, cannot be easily deformed or bent, and the service life of the switch is greatly prolonged.

Because the positive plate 221 moves along with the screw rod 22 in the first sleeve 24, other wires are not easy to connect, in the invention, preferably, a counter bore is formed in one end of the screw rod 22, which is used for fixing the positive plate 221, a positive guide rod 26 is fixedly arranged at one end of the first sleeve 24, which is far away from the switch base 21, the positive guide rod 26 extends into the counter bore, the periphery of the positive guide rod 26 is in contact with the inner side of the circular body of the positive plate 221, and a bulge is formed in the outer end of the positive guide rod 26, which is located at the first sleeve 24, and a hole is formed in the bulge so. After the arrangement, the lead wire connected with the positive plate 221 is directly connected with the positive guide rod 26, the positive guide rod 26 cannot move, so that the reliability of lead wire connection can be ensured, when the positive plate 221 displaces, the displacement is carried out along the length direction of the positive guide rod 26 and cannot be separated from the positive guide rod 26, and the positive plate 221 is also connected with the lead wire through the positive guide rod 26. In addition, the positive electrode guide rod 26 can ensure that the end of the screw 22 does not shake, ensure the reliability of the movement of the screw 22, and further ensure the reliability of the contact between the positive electrode piece 221 and the negative electrode piece 241.

Referring to fig. 3 and 4, the invention also discloses an intelligent note system made by using the spiral multi-selection switch, which comprises a drawing pin 10, an inserting plate 20, a shell 50, a spiral multi-selection switch 30 and a control module 40, wherein the shell 50 is used for accommodating the inserting plate 20, the spiral multi-selection switch 30 and the control module 40, the note is inserted on the inserting plate 20 through the drawing pin 10, a sounding or lighting part is arranged in the drawing pin 10, criss-cross lines are arranged in the inserting plate 20, and the control module 40 controls a certain longitudinal line, a certain transverse line and the drawing pin 10 in the inserting plate 20 to be conducted through the spiral multi-selection switch 30, so that the drawing pin 10 makes a sound or emits light to realize reminding. Through set up vertically and horizontally staggered's circuit and spiral multiple choice switch 30 in picture peg 20, just so can realize that every drawing pin 10 on picture peg 20 lights alone, when using, sets for a countdown to every drawing pin 10, and when the countdown time of certain drawing pin 10 arrived, can realize this drawing pin 10 through the action of control module 40 control spiral multiple choice switch 30 and send out the warning, this device simple structure, it is very convenient to use.

Referring to fig. 5, the structure of the insert plate 20 is various, and in the present invention, preferably, the insert plate 20 includes a base 21, the base 21 is in a square box shape, the base 21 is sequentially provided with a transverse conductive adhesive tape 22, a longitudinal conductive adhesive tape 23, and a foam layer 24 from bottom to top, the foam layer 24 is generally made of a high-density sponge material, so as to facilitate the insertion of the drawing pin 10 and not leave a hole after the drawing pin 10 is pulled out. A plurality of horizontal conducting rubber strips 22 are adjacently arranged, a plurality of vertical conducting rubber strips 23 are adjacently arranged, the horizontal conducting rubber strips 22 and the vertical conducting rubber strips 23 are perpendicular to each other, thus the horizontal conducting rubber strips 22 and the vertical conducting rubber strips 23 form criss-cross circuits, each horizontal conducting rubber strip 22 and the vertical conducting rubber strips 23 are provided with an insulating outer layer 221, two adjacent conducting rubber strips are prevented from being conducted, the conducting nails 25 are arranged on the peripheral walls of two adjacent sides of the base 21, the conducting nails 25 are inserted into the side edges of the base 21 and are conducted with the horizontal conducting rubber strips 22 or the vertical conducting rubber strips 23. The conductive pins 25 are arranged to facilitate connection between the transverse conductive adhesive tape 22 and the longitudinal conductive adhesive tape 23 and other circuits, for example, in the present invention, when the conductive adhesive tape is connected to the spiral multi-selection switch 30, only the conductive pins 25 and the spiral multi-selection switch 30 need to be connected through wires, and the wires are not shown in fig. 2 and 4, because there are too many wires, the wires will affect the display of other components.

Referring to fig. 6 and 7, the drawing pin 10 can be powered from the plug board 20 in various structures, so that the drawing pin 10 preferably comprises an inner core 11, an insulating core sleeve 12, an outer core 13, a drawing pin shell 14 and an LED lamp bead 15, wherein the inner core 11 and the outer core 13 are made of conductive materials; the inner core 11 comprises a first large-diameter section 111 and a first small-diameter section 112; the insulating core sleeve 12 is sleeved on the first small-diameter section 112 of the inner core 11, and the insulating core sleeve 12 comprises a second large-diameter section 121 and a second small-diameter section 122; the outer core 13 is sleeved on the second small-diameter section 122, and the outer core 13 comprises a third large-diameter section 131 and a third small-diameter section 132; one pin of the LED lamp bead 15 is inserted into the second small-diameter section 122 of the insulating core sleeve 12 and connected to the first small-diameter section 112 of the inner core 11, and the other pin of the LED lamp bead 15 is connected to the third large-diameter section 131 of the outer core 13; the first large-diameter section 111, the second large-diameter section 121 and the third small-diameter section 132 have the same outer diameter and jointly form the head of the drawing pin 10; the drawing pin shell 14 is sleeved on the outer sides of the third large-diameter section 131 and the LED lamp beads 15; the foam layer 24 is white, the bottom of the drawing pin shell 14 is black, so that the drawing pin 10 in an image can be identified conveniently, the top of the drawing pin shell 14 is made of transparent materials or is provided with micropores for light rays of the LED lamp beads 15 to emit, the length of the third small-diameter section 132 of the outer core 13 is larger than the thickness of the foam layer 24, and the insulating core sleeve 12 is located between the transverse conductive adhesive tape 22 and the longitudinal conductive adhesive tape 23 when the drawing pin 10 is inserted into the plug board 20. Through the structure, the drawing pin 10 is more compact, during assembly, the outer core 13 is taken out firstly, the insulating core sleeve 12 is inserted into the outer core 13, the inner core 11 is inserted into the insulating core sleeve 12, and finally two pins of the LED lamp bead 15 are respectively and point-soldered and connected with the outer core 13 and the inner core 11 respectively.

Further, the drawing pin device comprises a mobile terminal, wherein the mobile terminal is used for shooting the front image of the plug board 20 and processing the front image to obtain the position information of the drawing pin 10; a user sets reminding time for each drawing pin 10 on the mobile terminal, and the mobile terminal sends the position information of the drawing pin 10 to the control module 40 when any drawing pin 10 reaches the reminding time; the control module 40 drives the spiral multi-selection switch 30 to act according to the position information of the drawing pin 10, so that the transverse conductive adhesive tape 22 and the longitudinal conductive adhesive tape 23 at the position of the drawing pin 10 are respectively communicated with the positive electrode and the negative electrode of the power supply and light the LED lamp beads 15 in the drawing pin 10. The image on the plug board 20 is shot through the mobile terminal, the image is automatically identified to obtain the position information of the drawing pins 10, then the reminding time can be set for each drawing pin 10 on the mobile terminal, the control module 40 can be signaled by the mobile terminal when the reminding time is up, the control module 40 lights the LED lamp beads 15 in the corresponding drawing pins 10, and the operation flow is very convenient to use and operate.

There are many image recognition algorithms, and it is relatively easy in the present invention to recognize a black tack from the white foam layer 24, specifically, the position information of the tack 10 is obtained as follows: b1, shooting the front image of the plugboard 20 by the mobile terminal to obtain an original RGB image, and shooting the front image as much as possible, so that the identification of the drawing pin 10 is facilitated; b2, performing trapezoidal correction on the RGB image, wherein the outline of the periphery of the plug board 20 is definitely distorted and is not rectangular due to the angle problem during shooting, so that trapezoidal correction is performed through an algorithm, and the outline of the plug board 20 in the corrected image is square, so that the next processing is facilitated; b3, performing binarization processing on the corrected RGB image according to a set threshold value to obtain a black-and-white image, wherein a black area in the black-and-white image is the pushpin 10, and a white area in the black-and-white image is a background, and because the colors of the foam layer 24 and the pushpin 10 are significantly different, the area of the pushpin 10 in the image is identified, and the identification can be realized only by threshold value judgment; b4, screening out a real pushpin area according to the area size of a black area in a black-and-white image, wherein the step is mainly used for removing noise points, and the area with a smaller area is removed after expansion and corrosion treatment generally; b5, solving the minimum circumscribed rectangle of each real drawing pin area and obtaining the central position of the minimum circumscribed rectangle; and B6, dividing the plugboard 20 into square grids according to the number of the transverse conductive adhesive tapes 22 and the longitudinal conductive adhesive tapes 23, and acquiring the grid number of the central position of each real drawing pin area. The transverse conductive adhesive strips 22 can be numbered from top to bottom according to numbers, the longitudinal conductive adhesive strips 23 can be numbered from left to right according to numbers, so that the position information of the drawing pin 10 can be represented by two numbers, for example { 5, 3 } represents that the drawing pin 10 is inserted in the intersecting area of the 5 th transverse conductive adhesive strip 22 and the 3 rd longitudinal conductive adhesive strip 23, and when the drawing pin 10 needs to be reminded, only the two conductive adhesive strips need to be conducted to form a loop.

The threshold values mentioned above may be set according to empirical values, but when there is a difference in the ambient light of the board 20 or there is a difference in the colors of the pins 10 and the board 20, the previously set threshold values are not necessarily accurate, which affects the recognition effect. In the present invention, preferably, in B3, the threshold range may be set according to the following steps: b31, inserting a plurality of drawing pins 10 at any position on the inserting plate 20; b32, taking the front image of the card 20 and performing keystone correction, wherein the image can be taken by a plurality of images, and each image has a plurality of picturesA nail 10; b33, manually marking a pin area in the RGB after the trapezoidal correction; b34, calculating a threshold value range according to the R, G, B value of each pixel of the marked pushpin area { [ R ]_MIN,R_MAX],[G_MIN,G_MAX],[B_MIN,B_MAX]The calculation methods are many, and the threshold range can be calculated according to the maximum value, the minimum value, the average value or a random range, as long as R, G, B values of 80% -95% of pixels are within the threshold range; in B3, the pixel point of R, G, B value in the corrected RGB image within the threshold range is marked as 1, and the pixel point outside the threshold range is marked as 0. The steps B31-B34 are equivalent to correction, and do not need to be solved frequently, and only need to be executed when the environmental change is large or the recognition rate is low.

Further, the housing 50 includes a front housing 51 and a back housing 52, the front housing 51 defines a first notch 511, the inserting plate 20 is disposed at the first notch 511, and the foam layer 24 is exposed at the first notch 511, so that the whole device is more beautiful and easy to operate. The plug board 20, the multi-selection switch 30, the control module 40 and the power supply are all accommodated in a cavity enclosed by the front shell 51 and the back plate 52, so that the service life of the system is prolonged.