CN201984464U - Direct coding type electromagnetic induction net - Google Patents

Abstract

The utility model discloses a direct coding type electromagnetic induction net, comprising a plurality of leads. The electromagnetic induction net is characterized in that the electromagnetic induction net is divided into a longitudinal layer and a horizontal layer, which are respectively winded by a plurality of leads along a longitudinal direction and a horizontal direction; the longitudinal and the horizontal layers intersect in a mutually perpendicular manner, forming rectangular induction grids with equal size; each rectangular induction grid is provided with a corresponding coordinate coding. The electromagnetic induction net is advantageous in that a corresponding coordinate coding is disposed at each rectangular induction grid in a manner of direct coding, through which a coordinate positioning is conducted, and thereby at the time of control, the operation is simple, the data processing is fast and sensitivity is high; the whole electronic white board system is more stable and the writing application effect is better; the structure is simple, the winding is convenient, the cost is low and the popularization is facilitated.

Description

A kind of direct coding type electromagnetic induction net

Technical field

The utility model relates to a kind of electromagnetic induction layer of electromagnetic-type electronic blank, relates in particular to a kind of direct coding type electromagnetic induction net.

Background technology

In recent years along with application and the exploitation of electromagnetic induction technology in interactive electric whiteboard deepens continuously, the location that its product exists is accurate, precision is higher, the life-span is long, response speed is very fast, have in the writing process plurality of advantages such as pressure sensitivity also progressively to display, induction electronic whiteboard also develops into the main force in interactive electric whiteboard field gradually, occupies the bigger market share in the world market.At present, improving the accuracy rate of location, improve processing speed, and simplify to produce and reduce cost, still is induction electronic whiteboard field important development target.

At present, the visible patent No. of the relevant document of coiling mode of induction electronic whiteboard inductive layer is 02103069.3 invention, this invention mainly is to form by п shape section to have indented region and to intend antenna loop like the closed region to carry out a multiple antenna loop configuration, it mainly lays particular emphasis on and reduces number of switches and anti-external electromagnetism noise interference, but it has increased the complexity of coil winding, difficulty relatively during production there is no in fact and reduces cost.Simultaneously the patent No. is that 02119706.7 described four or four fraction antenna arrangements of invention are more loaded down with trivial details when it handles port data, and operand is bigger during the coordinate points position, and the usefulness of total system is reduced.

Summary of the invention

The utility model purpose is intended to overcome above-mentioned shortcoming, and a kind of quick location, lower-cost direct coding type electromagnetic induction net are provided.

For achieving the above object, the utility model adopts following solution: a kind of direct coding type electromagnetic induction net, comprise several wires, it is characterized in that: the electromagnetic induction net is divided into longitudinal layer and transverse layers, longitudinal layer and transverse layers are to distinguish longitudinally and laterally coiling with several wires, the mutual square crossing of longitudinal layer and transverse layers has constituted equal-sized rectangle induction grid, and the position of each rectangle induction grid all is provided with corresponding coordinate coding.

Above-mentioned direct coding type electromagnetic induction net, it is characterized in that: described several wires indicates not collinear preface code respectively, longitudinal layer and transverse layers by several wires according to many groups of different line preface code combination coilings, its coiling mode is that every lead will be according to a plurality of electromagnetic induction coils of line preface code combination coiling when coiling, article one lead first group of line preface code area after intact, and then jump to second group of line preface code area coiling, the rest may be inferred, and just coiling is intact for article one lead like this; A limit of second lead its coil when first group of line preface code area coiling is passed from the centre of the coil of article one lead coiling; Article three, a limit of lead its coil when first group of line preface code area coiling is near a limit of the coil of article one lead coiling; Remaining lead all gets final product according to this mode coiling.

Above-mentioned direct coding type electromagnetic induction net is characterized in that: every limit of described rectangle induction grid all be by two near different conductor constitute.

Above-mentioned direct coding type electromagnetic induction net is characterized in that: the width that described same lead constitutes several electromagnetic induction coils equates and is 2 times of rectangle induction mesh width.

Above-mentioned direct coding type electromagnetic induction net is characterized in that: an end of the several wires of the described longitudinal layer ground connection that links to each other, and the other end links to each other with multiway analog switch respectively; One end of the several wires of the described transverse layers ground connection that links to each other, the other end links to each other with multiway analog switch respectively.

Above-mentioned direct coding type electromagnetic induction net is characterized in that: the position of described each rectangle induction grid is definite by the horizontal ordinate coding of forceful electric power magnetic induction signal and time forceful electric power magnetic induction signal correspondence in the ordinate coding of forceful electric power magnetic induction signal in the longitudinal layer several wires and time forceful electric power magnetic induction signal correspondence and the transverse layers several wires.

Compared with prior art, the utlity model has following advantage:

1, the utility model can adopt direct coding to be provided with corresponding coordinate coding in the position of each rectangle induction grid according to its coiling feature, carry out coordinate setting with this, so it is simple to operate during control, data processing is fast, thereby highly sensitive whole electric whiteboard system is more stable, and it is better to write result of use.

2, the utility model electromagnetic induction web frame is simple, and coiling is convenient, and is therefore with low cost, is convenient to promote.

Description of drawings

The structural representation of Fig. 1, the utility model embodiment.

The partial schematic diagram of Fig. 2, the utility model embodiment transverse layers.

The synoptic diagram of Fig. 3, the utility model embodiment transverse layers.

The partial schematic diagram of Fig. 4, the utility model embodiment.

Among the figure: 1, electromagnetic induction net; 2, longitudinal layer; 3, transverse layers; 4, rectangle induction grid; 5, the limit of rectangle induction grid; 6, lead; 7, lead; 8, second group of line preface code area; 9, first group of line preface code area.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

As shown in Figure 1, electromagnetic induction net 1 is combined by longitudinal layer 2 and transverse layers 3 square crossings.

Shown in Fig. 2,3, transverse layers 3 is by indicating not collinear preface code (X1 ... X20) lead carries out coiling according to 2 groups of not collinear preface code combinations.Transverse layers 3 every leads will be according to 2 electromagnetic induction coils of line preface code combination coiling when coiling, and as shown in Figure 2, lead X1 after finishing, and then jumps to second group of line preface code area 8 coiling first group of line preface code area 9, and just coiling is intact for lead X1 like this; A limit of lead X2 its coil when first group of line preface code area 9 coiling is passed from the centre of lead X1 coil; A limit of lead X3 its coil when first group of line preface code area 9 coiling is near a limit of lead X1 coil; Remaining lead (X4 ... X20) all get final product according to this mode coiling.Longitudinal layer 2 is identical with the coiling mode of transverse layers 3.

As shown in Figure 4, longitudinal layer 2 and transverse layers 3 mutual square crossings have just been constituted equal-sized rectangle induction grid 4, each limit 5 of described rectangle induction grid 4 all constitutes near, different lead 6,7 by two.

Above embodiment only is used for illustrating this invention and on-fixed, and the big I of leading number of lines, line preface number of combinations and rectangle induction grid 4 of coiling longitudinal layer 2 and transverse layers 3 requires to change flexibly according to the breadth and the induction precision of electronic whiteboard.

Claims (5)

1. A direct coding type electromagnetic induction network, comprising several wires, is characterized in that: the electromagnetic induction network is divided into a vertical layer and a horizontal layer, and the vertical layer and the horizontal layer are respectively wound vertically and horizontally with several wires, and the vertical layer Layers and lateral layers intersect each other perpendicularly to form a rectangular sensing grid of equal size. 2. The direct coding type electromagnetic induction network according to claim 1, characterized in that: the longitudinal layer and the transverse layer are wound by several wires according to multiple groups of different line sequence codes, and the winding method is that each wire When the wire is wound, multiple electromagnetic induction coils should be combined and wound according to the wire sequence code. By analogy, the winding of the first wire is completed; when the second wire is wound in the first group of line code area, one side of its coil passes through the middle of the coil wound by the first wire; the third wire When the wire is wound in the first group of wire sequence code area, one side of the coil is close to one side of the coil wound by the first wire; the rest of the wires can be wound in this way. 3. The direct coding electromagnetic induction network according to claim 2, characterized in that: the same wire constitutes several electromagnetic induction coils with equal widths and twice the width of the rectangular induction grid. 4. The direct coding electromagnetic induction network according to claim 2, characterized in that: each side of the rectangular induction grid is composed of two different wires that are close to each other. 5. The direct coding type electromagnetic induction network according to claim 1, characterized in that: one end of several wires of the longitudinal layer is connected to the ground, and the other end is connected with a multi-way analog switch respectively; One end of the wire is connected to ground, and the other end is respectively connected to multiple analog switches. the

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