CN213303022U - Graph calculator based on MRAM - Google Patents

Abstract

The utility model discloses a figure calculator based on MRAM, including the calculator main part, the camera module is installed on the top of calculator main part, the one end surface of camera module is provided with leading camera, the other end surface of camera module is provided with rearmounted camera, the screen module is installed to a side surface upside of calculator main part, the bottom side of screen module is provided with the PCB button, the both ends surface mounting of calculator main part has the side to hold the piece, the middle part that the piece was held to the side is provided with the rectangle spacer block, the rubber ring is installed to the inboard of rectangle spacer block, the opposite side surface mounting of calculator main part has fingerprint module, the inside of calculator main part includes the PCB main control board. The utility model discloses an install SOT-MRAM module, camera module and fingerprint module in the calculator main part, make the camera module directly type to calculator main part inside according to the data of shooing to by SOT-MRAM module instant storage, avoid data to lose because of the outage.

Description

Graph calculator based on MRAM

Technical Field

The utility model relates to a calculator field, in particular to figure calculator based on MRAM.

Background

A graphic calculator generally refers to a hand-held calculator capable of drawing functional images, solving simultaneous equations, and performing other various operations, and most graphic calculators are also capable of writing mathematical-like programs. Due to their large screen, multiple lines of text can also be displayed simultaneously. Some graphic calculators even have color displays or three-dimensional ruler-drawing functionality. Since the graphic calculator can be programmed, it is also widely used for electronic games. Some computer software may also perform the functions of a graphics calculator.

However, the conventional graphic calculator usually adopts a storage module combining an RAM and a ROM, and can only draw a graphic by manually inputting data, and the input data has a low protection degree, so that data is easily lost due to the characteristics of the RAM module when a power supply is powered off, the data can be directly called out according to a system when the data falls into hands of other people, and all stored data can be checked without permission, thereby causing data leakage.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a figure calculator based on MRAM.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a figure calculator based on MRAM, including the calculator main part, the camera module is installed on the top of calculator main part, the one end surface of camera module is provided with leading camera, the other end surface of camera module is provided with rearmounted camera, the screen module is installed to a side surface upside of calculator main part, the bottom side of screen module is provided with the PCB button, the both ends surface mounting of calculator main part has the side to hold the piece, the middle part that the piece was held to the side is provided with the rectangle spacer block, the rubber ring is installed to the inboard of rectangle spacer block, the opposite side surface mounting of calculator main part has fingerprint module, the inside of calculator main part includes the PCB main control board.

As a preferred technical scheme of the utility model, the PCB main control board includes SOT-MRAM module and CPU module, the PCB main control board respectively with camera module, PCB button, screen module and fingerprint module electric connection, fingerprint module is photovoltaic formula structure fingerprint collection module.

As a preferred technical scheme of the utility model, the number of rectangle spacer block is no less than three, rubber ring and rectangle interval are fixed connection, and the rubber ring sets up for semi-circular structure.

As an optimal technical scheme of the utility model, the screen module includes board and LCD screen in a poor light, screen module surface is provided with the protection film.

As the utility model discloses an optimized technical scheme, fingerprint module and calculator main part are for inlaying the installation, the fingerprint module surface is sunken setting.

As an optimal technical scheme of the utility model, the whole trapezoidal structure setting that falls of camera module, camera module and calculator main part are fixed connection, and the camera module surface is formed by the preparation of aluminum alloy material.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an installation SOT-MRAM module, camera module and fingerprint module in the calculator main part, make the camera module directly type in to calculator main part inside according to the data of shooing to by SOT-MRAM module instant storage, avoid data to lose because of the outage, and the fingerprint module who adopts then can prevent data leakage according to human body identification, increase the reliability of data storage.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a rear view structure diagram of the present invention;

fig. 3 is a schematic diagram of the module structure of the present invention;

in the figure: 1. a calculator main body; 2. a camera module; 3. a front camera; 4. a rear camera; 5. a screen module; 6. a PCB key; 7. a side grip block; 8. a rectangular spacer block; 9. a rubber ring; 10. and a fingerprint module.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

Example 1

As shown in fig. 1-3, the utility model provides a figure calculator based on MRAM, including calculator main part 1, camera module 2 is installed on calculator main part 1's top, camera module 2's a terminal surface is provided with leading camera 3, camera module 2's other terminal surface is provided with rear camera 4, screen module 5 is installed to a side surface upside of calculator main part 1, screen module 5's bottom side is provided with PCB button 6, calculator main part 1's both ends surface mounting has side to hold piece 7, side is held the middle part of piece 7 and is provided with rectangle spacer block 8, rubber ring 9 is installed to rectangle spacer block 8's inboard, fingerprint module 10 is installed to the other side surface of calculator main part 1, calculator main part 1's inside includes the PCB main control board.

Further, the PCB main control board includes an SOT-MRAM module and a CPU module, the PCB main control board is electrically connected to the camera module 2, the PCB button 6, the screen module 5, and the fingerprint module 10 is a photovoltaic fingerprint collection module.

The number of the rectangular spacing blocks 8 is not less than three, the rubber ring 9 and the rectangular spacing blocks are fixedly connected, and the rubber ring 9 is arranged in a semicircular structure.

The screen module 5 comprises a backlight plate and an LCD screen, and a protective film is arranged on the surface of the screen module 5.

The fingerprint module 10 and the calculator body 1 are mounted in an embedded mode, and the surface of the fingerprint module 10 is arranged in a concave mode.

The whole inverted trapezoid structure of the camera module 2 is arranged, the camera module 2 and the calculator main body 1 are fixedly connected, and the surface of the camera module 2 is made of an aluminum alloy material.

Specifically, calculator main part 1 is when using, mainly via the input of surperficial PCB button 6, the 7 surfaces of the side of its side is held and is then provided with rectangle spacer block 8, the user can put into rectangle spacer block 8 with the finger, makes finger contact rubber ring 9 surface, rubber ring 9 surface then is provided with graininess structure, and the handheld use of more person of facilitating the use avoids calculator main part 1 to drop, then can directly insert the inboard to rubber ring 9 with the finger when needing further the fixing.

If the data is the existing data, such as the graph or the numerical value on the paper or the screen, the user can shoot through the front camera 3 or the rear camera 4, the shot image is identified through the OCR algorithm carried by the CPU module of the PCB main control board in the calculator main body 1, the formed data is directly stored in the SOT-MRAM module of the PCB main control board after the image character correction, the binarization processing and the cutting and identification processes are finished, the SOT-MRAM module is a spin transfer torque memory, which is an effect of changing the orientation of the magnetic layer in the magnetic tunnel junction or the spin valve by using the spin polarization current, the spin transfer torque effect can be used for turning over the active element in the magnetoresistive random access memory, the spin transfer torque magnetoresistive random access memory (SOT-MRAM) is a nonvolatile memory, compared with the memories based on the electric charges, such as the SRAM and the DRAM, the leakage power consumption is close to zero, compared with the traditional magnetic resistance random access memory (MRAM) which uses a magnetic field to overturn a carrier, the SOT-MRAM also has the advantages of low power consumption, good expandability and the like, the spin transfer torque effect has great potential, so that the MRAM device not only can reduce the current requirement, but also can reduce the cost, has long-period storage and retention capacity before power failure and failure, and ensures that the data storage is more stable.

After the data is stored, unified safety management can be performed through a background management system carried by the CPU module, some data needing to be kept secret can be locked through the system according to the authority of an administrator recorded by the fingerprint module 10 for the first time, and the unlocking read-write function is mainly performed through the identification of the fingerprint module 10 when the data is checked, so that the privacy of data safety is improved.

The portable calculator main body 1 is simple in structure, convenient to input existing data by mainly adopting a portable system composition structure, stability and safety of data storage are guaranteed, and phenomena such as data loss and data leakage caused by power loss in the operation process are avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The graph calculator based on the MRAM comprises a calculator main body (1) and is characterized in that a camera module (2) is installed at the top end of the calculator main body (1), a front camera (3) is arranged on one end surface of the camera module (2), a rear camera (4) is arranged on the other end surface of the camera module (2), a screen module (5) is installed on the upper side of one side surface of the calculator main body (1), PCB keys (6) are arranged on the bottom side of the screen module (5), side holding blocks (7) are installed on the surfaces of two ends of the calculator main body (1), rectangular spacing blocks (8) are arranged in the middle of the side holding blocks (7), rubber rings (9) are installed on the inner sides of the rectangular spacing blocks (8), and a fingerprint module (10) is installed on the other side surface of the calculator main body (1), the calculator main body (1) comprises a PCB main control board inside.

2. The MRAM-based graphic calculator of claim 1, wherein the PCB main control board comprises an SOT-MRAM module and a CPU module, the PCB main control board is electrically connected with the camera module (2), the PCB keys (6), the screen module (5) and the fingerprint module (10), and the fingerprint module (10) is a photovoltaic fingerprint collection module.

3. MRAM-based graphic calculator according to claim 1, wherein said rectangular spacers (8) are not less than three in number, said rubber ring (9) and rectangular spacers are fixedly connected, and said rubber ring (9) is arranged in a semicircular structure.

4. MRAM-based graphic calculator according to claim 1, wherein said screen module (5) comprises a backlight and an LCD screen, and said screen module (5) is provided with a protective film on its surface.

5. MRAM-based graphic calculator according to claim 1, wherein the fingerprint module (10) and calculator body (1) are mounted in a mosaic, the fingerprint module (10) surface being provided as a recess.

6. The MRAM-based graphic calculator of claim 1, wherein the camera module (2) is integrally arranged in an inverted trapezoid structure, the camera module (2) and the calculator body (1) are fixedly connected, and the surface of the camera module (2) is made of an aluminum alloy material.

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