CN213545231U

CN213545231U - Magnetic type intelligent pen

Info

Publication number: CN213545231U
Application number: CN202022361652.1U
Authority: CN
Inventors: 常治国; 张鸿亮
Original assignee: Shenzhen Bangbangbang Technology Co ltd
Current assignee: Shenzhen Bangbangbang Technology Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-25
Anticipated expiration: 2030-10-21

Abstract

The utility model belongs to the technical field of the intelligence is write the device, a formula intelligence pen is inhaled to magnetism is provided. The utility model discloses a formula intelligence pen is inhaled to magnetism, include: a pen core; the pressure sensor module is used for detecting writing pressure acting on the pen core, and the pen core and the pressure sensor module are connected in a separable mode; a magnetic component; the support is used for mounting the pen core and the pressure sensor module, and one end of the pressure sensor module, which is far away from the pen core, is magnetically attracted with the support through a magnetic assembly; and a housing formed with a chamber for accommodating the cartridge and the pressure sensor module. The utility model discloses a formula intelligence pen is inhaled to magnetism can show the accuracy that improves intelligence pen pressure detection.

Description

Magnetic type intelligent pen

Technical Field

The utility model relates to an intelligence is write technical field, especially relates to a formula intelligence pen is inhaled to magnetism.

Background

Along with the popularization of distance education and intelligent education, the related technology of the intelligent pen is greatly developed. The existing intelligent pen not only has the writing function of the traditional pen, but also can collect writing handwriting when a micro-image array is printed for writing, and stores and transmits the handwriting in an electronic mode. The principle of the method is that the position of a pen point relative to a printed micro-graphic array during writing is collected through a camera arranged on a pen point, and then handwriting is generated through image processing and coordinate transformation.

At present, in order to present the thickness change of a writing stroke according to the writing strength change, a pressure sensor is often needed to measure the pressure applied to a pen core during writing. In order to accurately reflect the thickness change of the writing strokes, the pressure sensor needs to quickly sense the writing pressure when the intelligent pen is dropped for writing, and the detection of the pressure caused by unnecessary contact between the pen core and the pressure sensor can be avoided when the intelligent pen is lifted. At present, a mode of fixedly connecting the pressure sensor with the intelligent pen main body is adopted, but the mode is influenced by a fixed connection structure, so that the pressure born by the pen core cannot be accurately and timely transmitted to the pressure sensor. If the pressure sensor is not fixed, the pressure sensor is easy to move along with the pen core when the pen is lifted, so that the interference is generated on the pressure sensor, and the detection is inaccurate.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a formula intelligence pen is inhaled to magnetism for solve the unsafe technical problem of intelligent pen pressure detection of prior art.

The utility model adopts the technical proposal that:

in a first aspect, the utility model provides a formula intelligence pen is inhaled to magnetism, include:

a pen core;

the pressure sensor module is used for detecting writing pressure acting on the pen core, and the pen core and the pressure sensor module are connected in a separable mode;

a magnetic component;

the support is used for mounting the pen core and the pressure sensor module, and one end of the pressure sensor module, which is far away from the pen core, is magnetically attracted with the support through a magnetic assembly;

and a housing formed with a chamber for accommodating the cartridge and the pressure sensor module.

Preferably, the magnetic assembly comprises a first magnetic part and a second magnetic part which can attract each other, the first magnetic part is arranged at one end, away from the pen core, of the bracket, and the second magnetic part is arranged in the pressure sensor module.

Preferably, the pressure sensor module further comprises a first sliding member, and the first sliding member is slidably connected with the bracket.

Preferably, the pressure sensor module comprises a first pressure sensor and a second pressure sensor

Preferably, the second magnetic member is mounted to the first slider, the first pressure sensor is disposed at an end of the first slider facing the pen core, a fixing portion is disposed at an end of the bracket facing away from the pen core, the second pressure sensor is mounted at an end of the fixing portion facing the first slider, and the first magnetic member is mounted to the fixing portion.

Preferably, the pre-pressing piece is arranged at one end, facing the second pressure sensor, of the first sliding block, and the second pressure sensor and the pre-pressing piece form pre-pressing.

Preferably, the prepressing piece is made of a magnetic material, and serves as a second magnetic piece.

Preferably, the second magnetic member is mounted to the first slider, the first pressure sensor is disposed at an end of the first slider facing the pen core, the second pressure sensor is disposed at an end of the first slider away from the pen core, the bracket is disposed at an end of the bracket away from the pen core and provided with a fixing portion, and the first magnetic member is mounted to the fixing portion.

Preferably, the pen further comprises a touch and press part, the touch and press part is positioned at one end of the pen core facing the first pressure sensor, and the pen core drives the touch and press part to touch and press the first pressure sensor when being subjected to pressure.

Preferably, the pen further comprises a second sliding part, the second sliding part is connected with one end, facing the pressure sensor module, of the pen core, the first sliding part is connected with the support in a sliding mode, and the support and the shell enclose a sliding groove for the pen core to slide along the length direction of the pen core.

Has the advantages that: the utility model discloses a formula intelligence pen is inhaled to magnetism is located the one end that the refill was kept away from to the support with the pressure sensor module through magnetic component's magnetic field effect, and the refill can the relative pressure sensor module separation, lifts like this gravity under the pen state and makes the refill be located the one side of keeping away from the pressure sensor module, has effectively guaranteed that intelligence pen refill afterbody and pressure sensor module separate when lifting the pen to can accurately judge and lift a state of falling, effectively avoided the error connection of stroke. Because the pressure sensor module adopts the mode of magnetism to inhale and is connected with the support, promote the pressure sensor module after the refill pressurized when the pen falls to write, because do not have fixed connection structure, consequently pressure sensor can not receive the influence of traditional fixed connection structure, and the perception that can be timely accurate is to the pressure that acts on the refill.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings, and these drawings are all within the protection scope of the present invention.

FIG. 1 is a block diagram of the magnetic-type smart pen of the present invention;

fig. 2 is a partial enlarged view of a pressure sensor module according to embodiment 2 of the present invention;

fig. 3 is a partial enlarged view of a pressure sensor module according to embodiment 3 of the present invention;

fig. 4 is a schematic structural diagram of a magnetic-type smart pen according to embodiment 2 of the present invention;

fig. 5 is a schematic structural diagram of a magnetic-type smart pen according to embodiment 3 of the present invention;

fig. 6 is a schematic structural view of another magnetic-type smart pen according to embodiment 2 of the present invention;

fig. 7 is a block diagram of a circuit structure of the magnetic-type smart pen of the present invention;

fig. 8 is a schematic structural view of the magnetic-type smart pen according to embodiment 6 of the present invention;

FIG. 9-1 is a photograph showing the effect of a first set of characters written by the smart pen of the present invention;

FIG. 9-2 is a diagram showing the result of the first set of characters written by the magnetic-type smart pen of the present invention;

FIGS. 9-3 are photographs of a first set of text written with a prior art smart pen;

FIGS. 9-4 are graphs of a first set of text collection results written with a prior art smart pen;

FIG. 10-1 is a picture of the effect of photographing a second group of characters written by the magnetic-type smart pen of the present invention;

FIG. 10-2 is a second set of text collection results plot written with the magnetic-type smart pen of the present invention;

FIG. 10-3 is a photograph of a second set of text written with a prior art smart pen;

FIGS. 10-4 are graphs of a second set of text collection results written with a prior art smart pen;

part numbers and descriptions in the figures: the pen core comprises a pen core 10, a touch pressing piece 11, a pressure sensor module 20, a first pressure sensor 21, a second pressure sensor 22, a support 40, a fixing part 50, a first magnetic piece 51, a second magnetic piece 52, conductive silica gel 54, a metal elastic piece 55, a pre-pressing piece 56, a first sliding piece 61, a second sliding piece 62, a shell 71, a bottom shell 711, a face shell 712, a fixing sleeve 713, a first PCB 72, an 80 identification module, an optical filter 81, a lens 82, an image sensor 83, a first chip 84, a power supply 90, a first opening 91 and a light source device 92.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, various features of the embodiments and examples of the present invention may be combined with each other and are within the scope of the present invention.

Example 1:

as shown in fig. 1, this embodiment provides a magnetic-type smart pen, including refill 10, pressure sensor module 20, magnetic assembly, support 40 and casing 71: when in use, a user holds the shell 71 of the intelligent pen to drive the pen core 10 to write on a medium for writing. Aforementioned refill 10 plays the effect of transmission pressure, and pressure when the intelligence pen is written transmits for pressure sensor module 20 through refill 10. The pressure sensor module 20 is used for detecting writing pressure acting on the pen core 10, and the pen core 10 and the pressure sensor module 20 are connected in a separable mode; the support 40 is used for mounting the pen core 10 and the pressure sensor module 20, and one end, far away from the pen core 10, of the pressure sensor module 20 is in magnetic attraction connection with the support 40 through a magnetic component; the housing 71 is formed with a chamber for accommodating the pen core 10 and the pressure sensor module 20. Wherein the chamber accommodates a portion of the cartridge 10 and the portion of the cartridge 10 used for writing is exposed outside the chamber. The magnetic component may be made of magnetic materials including, but not limited to, Fe, Co, Ni elements and alloys thereof. Since the pen core 10 of the present embodiment is detachably connected to the pressure sensor module 20, a specific connection structure may be that the holder 40 and the housing enclose a sliding groove for the pen core 10 to slide along the length direction thereof, and when the pen core 10 is in a pressed state, the pen core slides along the sliding groove to a position abutting against the first pressure sensor 21, and when the pen core 10 is in an unpressed state, the pen core slides along the sliding groove to a position separated from the first pressure sensor 21. Because the pressure sensor module 20 in the intelligent pen is positioned at one end of the support 40 through magnetic attraction, the pen core 10 can be separated from the pressure sensor module 20, gravity in the pen lifting state enables the pen core 10 to be positioned at one side far away from the pressure sensor module 20, the tail of the pen core 10 is effectively separated from the pressure sensor module 20 when the intelligent pen is lifted, the pen lifting and falling state can be accurately judged, the wrong connection of strokes is effectively avoided, for example, the tail of one independent stroke and the head of the next independent stroke are connected in a wrong way. And because the pressure sensor module 20 is connected with the bracket 40 in a magnetic attraction manner, the pressure sensor module 20 is pushed after the refill 10 is pressed when the pen is dropped for writing, and because a fixed connection structure is not arranged, the pressure sensor is not influenced by the traditional fixed connection structure, and can timely and accurately sense the pressure acting on the refill 10.

In the present embodiment, as shown in fig. 2 and 3, the magnetic assembly includes a first magnetic member 51 and a second magnetic member 52 that can attract each other, the first magnetic member 51 is disposed at an end of the holder 40 away from the pen core 10, and the second magnetic member 52 is disposed in the pressure sensor module 20. In the present embodiment, a magnetic member, i.e., a first magnetic member 51 and a second magnetic member 52, is disposed at the distal end of the bracket 40 and in the pressure sensor module 20. The opposite ends of the first magnetic member 51 and the second magnetic member 52 face each other, so that the first magnetic member 51 and the second magnetic member 52 attract each other under the action of the magnetic field, thereby bringing the pressure sensor module 20 connected to the second magnetic member 52 into abutment with the distal end of the bracket 40. In addition, in this embodiment, the pressure sensor module 20 further includes a first sliding member 61, the first sliding member 61 is slidably connected to the bracket 40, and the pressure sensor module 20 can slide to a position abutting against the distal end of the bracket 40 by the magnetic attraction of the magnetic component in the foregoing manner.

The pressure sensor module 20 in this embodiment comprises a first pressure sensor 21 and a second pressure sensor 22.

Wherein the first pressure sensor 21 may be a thin film resistance strain gauge pressure sensor. The pressure-resistance curve dynamic range of the sensor is large, the change of the resistance can be directly used as a startup awakening signal without amplification after being converted into a voltage signal, the automatic startup function of writing is supported, and the AD sampling digitization can also be directly provided.

Wherein the second pressure sensor 22 may be a bridge type pressure sensor. On one hand, the sensor has good linearity of a pressure-resistance curve and can well distinguish slight change of writing pressure. On the other hand, the repeatability is good, namely the same pressure is applied after the pressure is released, the resistance is repeatedly measured, the variance of the resistance value is small, and the effect of good consistency of stroke thickness presented by the same writing force can be achieved by adopting the sensor.

The formula smart pen is inhaled to magnetism of this embodiment makes refill 10 and first pressure sensor 21 butt when the pressurized, can make first pressure sensor 21 in time detect pressure change, triggers detection device and handles and gather the signal of telecommunication of second sensor, makes pressure can in time transmit for second pressure sensor 22 simultaneously, lets detection device can in time accurately measure the pressure size of waiting to detect according to the signal that second pressure sensor 22 detected.

The present embodiment further includes a controller electrically connected to the first pressure sensor 21 and the second pressure sensor 22, respectively;

the controller receives the electrical signal of the first pressure sensor 21, and the first pressure sensor 21 adopts a pressure sensor with a large dynamic range of a pressure-resistance curve, so that the voltage signal of the first pressure sensor 21 can be directly sent to the controller without amplification, the controller controls related equipment to start and wake up according to the voltage signal of the first pressure sensor 21, and can also control whether to process and collect the electrical signal of the second pressure sensor 22 according to the voltage signal of the first pressure sensor 21. Because this embodiment has adopted the mode of first pressure sensor 21 and the collaborative work of second pressure sensor 22, through adopting the little pressure change control pressure detection device's that detects of first pressure sensor 21 of energy consumption working method, make pressure detection device only adopt the second pressure sensor 22 that the detection precision is high and repeatability comes the accurate pressure value that detects when satisfying the settlement condition, only adopt first pressure sensor 21 to detect pressure change when not satisfying the condition, so both make pressure detection device's consumption greatly reduced, the detection precision of pressure detection device who shows the improvement again.

In the present embodiment, the first pressure sensor 21 is in contact with the pen core 10 in the pressed state, and is separated from the first pressure sensor 21 in the unpressurized state of the pen core 10. In the embodiment, whether the signal detected by the second pressure sensor 22 is started or closed is determined by using the pressure change detected by the first pressure sensor 21 to process and collect the signal detected by the second pressure sensor 22, the pen core 10 is abutted against the first pressure sensor 21 when being pressed, so that the first pressure sensor 21 can timely detect the pressure change, the detection device is triggered to process and collect the electric signal of the second sensor, meanwhile, the pressure can be timely transmitted to the second pressure sensor 22, and the detection device can timely and accurately measure the pressure to be detected according to the signal detected by the second pressure sensor 22. When the pen core 10 is not pressed, the pen core 10 is separated from the first pressure sensor 21, so that the condition that the pen core 10 is contacted with the first pressure sensor 21 to generate pressure on the first pressure sensor 21, and the pressure detection result is inaccurate can be avoided.

Example 2

As shown in fig. 2 and 4, in the present embodiment, an implementation manner of magnetically connecting the pressure sensor module 20 and the bracket 40 is provided, in the present embodiment, the second magnetic member 52 is mounted on the first slider 61, the first pressure sensor 21 is disposed at an end of the first slider 61 facing the pen core 10, a fixing portion 50 is disposed at an end of the bracket 40 away from the pen core 10, the second pressure sensor 22 is mounted at an end of the fixing portion 50 facing the first slider 61, and the first magnetic member 51 is mounted on the fixing portion 50.

In order to connect the first sliding member 61 and the fixed portion 50 by magnetic attraction, the fixed portion 50 is provided with a first magnetic member 51, and then the first sliding member 61 is provided with a second magnetic member 52 attracted to the first magnetic member 51. Through setting up two magnetic part of inter attraction on first slider 61 and fixed part 50 respectively, utilize the effect of the looks attraction of two magnetic part to drive first slider 61 and fixed part 50 and support tightly, form the connection of magnetism, connect whole pressure sensor module 20 in the one end that keeps away from refill 10 through magnetism at support 40, can make first slider 61 produce the pre-compaction effect to second pressure sensor 22 simultaneously. In a specific implementation, a mounting groove is formed in the first sliding member 61, the second magnetic member 52 is mounted in the mounting groove, a mounting groove is formed in the fixing portion 50, and the first magnetic member 51 is mounted in the mounting groove.

The pre-pressing piece 56 is further included, the pre-pressing piece 56 is arranged at one end, facing the second pressure sensor 22, of the first slide block, and the second pressure sensor 22 and the pre-pressing piece 56 are pre-pressed. The second pressure sensor 22 abuts against the pre-pressing member 56 to be pressed in synchronization with the first pressure sensor 21 when pressed. The synchronous pressure connection is a connection structure or a connection form that is sufficient to enable the second pressure sensor 22 and the first pressure sensor 21 to synchronously sense the pressure to be detected. This connection or form of connection enables the force-bearing surface of the first pressure sensor 21 and the force-bearing surface of the second pressure sensor 22 to remain rigidly connected in a fixed relative position even when the pressure detection device is not subjected to the pressure to be measured. In this embodiment, the second pressure sensor 22 is in a pre-compression state with a small force by the pre-compression member 56, so that the second pressure sensor 22 can be reliably abutted against the pre-compression member 56 even in a state that the compressed member is not compressed and the first pressure sensor 21 is separated from each other, and the second pressure sensor 22 has no space for free movement. When the pressed part is pressed and abutted against the first pressure sensor 21, the second pressure sensor 22 and the prepressing part 56 are always kept in an abutting state, so that the pressure transmitted by the pressed part can be immediately transmitted to the stressed surface of the second pressure sensor 22 through the prepressing part 56, and the pressure effect of the pressed part can be synchronously sensed by the second pressure sensor 22 and the first pressure sensor 21.

The second pressure sensor 22 is magnetically coupled to the pre-compression element 56. The second pressure sensor 22 is held in abutment with the preload member 56 by the action of the magnetic field. The magnetic coupling method of the present embodiment can provide the second pressure sensor 22 with an accurate pre-compression pressure, compared to the method of maintaining the pre-compression state by using an elastic member such as a spring, and the pressure of the set value can be stably maintained for a long period of time without being changed after a plurality of times of pressure application as in the case of the elastic member.

The present embodiment mounts the first pressure sensor 21 and the second pressure sensor 22 on the first slider 61 and the fixing portion 50 of the bracket 40, respectively. The first pressure sensor 21 can slide together with the first slider 61 relative to the bracket 40. Because the first sliding part 61 and the fixing part 50 are connected through magnetic attraction, the first sliding part 61 tends to be pressed against the fixing part 50 under the action of a magnetic field, and because the second pressure sensor 22 is installed at one end of the fixing part 50 facing the first sliding part 61, the end of the first sliding part 61 facing the fixing part 50 is pressed against the stressed surface of the second pressure sensor 22 under the action of the magnetic field, so that a pre-pressing effect on the second pressure sensor 22 is generated. Because the first pressure sensor 21 is fixed on the first slider 61 and moves synchronously with the first slider 61, when the pressed piece is pressed to move to abut against the first pressure sensor 21 to generate pressure on the first pressure sensor 21, the first slider 61 is pushed to further press the second sensor towards the second pressure sensor 22, and the second pressure sensor 22 is always pressed against the first slider 61 under the pre-pressing action, so that the pressure of the pressed piece is transmitted to the second pressure sensor 22 while the first slider 61 is pushed by the pressed piece, and the pressed piece can be synchronously pressed with the first pressure sensor 21.

The pre-pressing member 56 in this embodiment is made of a magnetic material, that is, the pre-pressing member 56 is used as the second magnetic member 52, so that the structure of the pressure sensor module 20 is simpler and more compact, and the manufacturing cost of the product is significantly reduced.

As another example, the pre-pressing member 56 and the second magnetic member 52 may be different components, and a mounting groove may be formed on the first sliding member 61, and the second magnetic member 52 may be mounted in the mounting groove, so that the pre-pressing member 56 may be made of a non-magnetic material.

As shown in fig. 6, the present embodiment also provides another structure of the smart pen as an example, in this example, the second pressure sensor 22 is mounted on the fixed portion 50 of the bracket 40, the fixed portion 50 is provided with the first magnetic member 51, and the second slider 62 is provided with the first magnetic member 52. The housing 71 of the smart pen is assembled by a bottom case 711 and a front case 712. The smart pen is also provided with a securing sleeve, 713 which may be threadably connected to the housing 71. The fixing bush 713 can effectively prevent the pen core 10 from falling out of the housing 71. The smart pen further comprises a filter 81 and an identification module 80 for identifying images.

Example 3

As shown in fig. 3 and 5, in this embodiment, another implementation manner of magnetically connecting the pressure sensor module 20 and the bracket 40 is provided, in this embodiment, the second magnetic member 52 is mounted on the first slider 61, the first pressure sensor 21 is disposed at an end of the first slider 61 facing the pen core 10, the second pressure sensor 22 is disposed at an end of the first slider 61 away from the pen core 10, a fixing portion 50 is disposed at an end of the bracket 40 away from the pen core 10, and the first magnetic member 51 is mounted on the fixing portion 50.

The present embodiment mounts the first pressure sensor 21 and the second pressure sensor 22 at both ends of the first slider 61, respectively, with the first pressure sensor 21 facing the pen core 10 and the second pressure sensor 22 facing the fixing portion 50. Since both the first pressure sensor 21 and the second pressure sensor 22 are provided on the first slider 61. The first magnetic member 51 drives the first sliding member 61 to slide toward the fixing portion 50 under the action of the magnetic field of the second magnetic member 52, so that the first sliding member 61 mounted with the first pressure sensor 21 and the second pressure sensor 22 is magnetically connected with the fixing portion 50 of the bracket 40.

In this embodiment, the fixing portion 50 may be provided with a pre-pressing member 56 towards one end of the second pressure sensor 22, so that the pen core 10 contacts the first pressure sensor 21 and pushes the first sliding member 61, the first sliding member 61 drives the second pressure sensor 22 to generate a tendency of moving towards the first magnetic member 51, and the second pressure sensor 22 can immediately sense the pressure generated by the pre-pressing member 56 on the second pressure sensor 22, thereby realizing synchronous pressing of the second pressure sensor 22 and the first pressure sensor 21.

Example 4

As shown in fig. 2 and 3, in this embodiment, a contact member 11 is further provided at an end of the pen core 10 facing the first pressure sensor 21, and the pen core 10 brings the contact member 11 into contact with the first pressure sensor 21 when being pressed. The touch pressing member 11 may be made of a material having a certain elasticity, such as silicon gel, plastic, rubber, steel, and the like. The touching and pressing member 11 may be disposed at the rear end of the pen core 10, and when the pen core 10 is pressed, the touching and pressing member 11 touches the first pressure sensor 21, so that the first pressure sensor 21 may sense the pressure applied to the pen core 10. The pen core 10 is easy to shake at the moment of contacting and separating with the first pressure sensor 21, and the touch and press piece 11 is made of materials with certain elasticity such as silica gel, so that when the pen core 10 is pressed, the touch and press piece 11 can reliably and fully touch and press the first pressure sensor 21, and the reliability and the accuracy of the pressure detection device are further improved. In order to bring the pen core 10 into contact with the first pressure sensor 21 when it is in a pressed state, and to be separated from the first pressure sensor 21 when it is in a non-pressed state. The present embodiment is further provided with a second slider 62, the second slider 62 being connected in a slidable manner with respect to the bracket 40. The pen core 10 is connected with the second sliding piece 62, so that the pen core 10 can slide relative to the bracket 40, when the pen core 10 is pressed, the pen core 10 can slide to a position abutting against the first pressure sensor 21, when the sliding piece is in a non-pressed state, the pen core can slide to a position far away from the tail part of the bracket 40, and the first pressure sensor 21 is fixed at one end close to the fixing part 50 of the bracket 40 due to the magnetic attraction effect, so that the pen core 10 can be separated from the first pressure sensor 21. The second slider 62 may be mounted at the tail of the pen core 10 and the aforementioned pressing member 11 may be mounted at an end of the second slider 62 facing the first pressure sensor 21, so that the pen core 10 pushes the second slider 62 to slide when it is subjected to the pressure to be detected, and the second sliding belt pressing member 11 presses the first pressure sensor 21.

Example 5

As shown in fig. 7, the magnetic-type smart pen of this embodiment further includes a controller, a signal amplification circuit and an analog-to-digital conversion circuit, the signal amplification circuit is electrically connected with the second pressure sensor 22 and the controller respectively, the analog-to-digital conversion circuit is electrically connected with the signal amplification circuit and the controller respectively, and the controller turns on or off the signal amplification circuit and the digital-to-analog conversion circuit according to the detection signal of the first pressure sensor 21.

The first pressure sensor 21 may be used as a trigger for power-on during writing. That is, when the pressure detected by the first pressure sensor 21 exceeds the set threshold, the controller controls the smart pen to be in the power-on state. The first pressure sensor 21 may also be used to determine the pen-down and pen-up of writing, for example, when the pressure detected by the first pressure sensor 21 is greater than a set threshold, the controller determines that writing is in the pen-down state, and when the pressure detected by the first pressure sensor 21 is less than the set threshold, the controller determines that writing is in the pen-up state. When the controller judges that the pen is dropped according to the detection signal of the first pressure sensor 21, the signal amplification circuit of the second pressure sensor 22 is started, the signal collected by the second pressure sensor 22 is amplified, the AD sampler can be started to sample the output signal of the amplification circuit, and the sampling resultThe controller is used for controlling the thickness of the stroke display, and after the controller judges that the pen is lifted through the first pressure sensor 2120, the signal amplifying circuit of the second pressure sensor 22 is closed, and the AD sampling is stopped, so that the purpose of saving power consumption is achieved. In the embodiment, the passive first pressure sensor 21 is used as a starting trigger signal and a pen-down and pen-up indicating signal, so that the power consumption of the whole machine can be saved; the second pressure sensor 22 is used for collecting the writing pressure of the pen point with high precision, and then the thickness change of the written handwriting is restored with high fidelity. The controller collects the AD output values of the second pressure sensors for N times each time the controller detects a pen-up signal, calculates an average value as the output zero offset value of the second pressure sensor 22 of the next stroke, and subtracts the zero offset value from the output value of the second pressure sensor 22 to obtain the calibrated output value of the second pressure sensor 22, so that the writing 'pen front' effect can be reproduced. The controller may further determine a pen-up state and a pen-down state of the smart pen according to the detection signal of the first pressure sensor 21, wherein the controller may eliminate a zero offset of the second pressure sensor 22 when the smart pen writes according to a pressure value detected by the second pressure sensor 22 when the pen-up state is last. For example, the pressure value of the second pressure sensor 22 is P after the smart pen is lifted₀(P₀Either positive or negative), the controller will control P₀The smart pen is then dropped into contact with the writing medium, and the second pressure sensor 22 detects a pressure value P₁Let the pressure value after eliminating zero offset be P_rThen P is_r＝P₁-P₀

As shown in fig. 2 and fig. 3, the magnetic-type smart pen of this embodiment further includes a first PCB 72, a metal spring 55 and conductive silica gel 54, wherein one end of the metal spring 55 is connected to the first PCB 72, and the other end thereof is abutted to the second pressure sensor 22. One end of the conductive silica gel 54 is connected to the first PCB 72, and the other end is connected to the first pressure sensor 21.

In addition, this embodiment still is provided with the power, and the power is connected with the controller electricity to each components and parts power supply along with the smart pen. The smart pen of this embodiment is further provided with an image capturing assembly, which includes an optical filter 81, a lens 82 and an image sensor 83, wherein the image sensor 83 is electrically connected to the first PCB 72. The image acquisition assembly is used for acquiring images during writing. Light of an image to be acquired is filtered by the optical filter 81 and focused on the image sensor 83 through the lens 82, and the image sensor 83 converts an optical signal into an electrical signal and sends the electrical signal to the first chip 84.

The formula smart pen metal shrapnel and the electrically conductive silica gel are inhaled to magnetism of this embodiment, metal shrapnel one end with first PCB board 72 is connected, the relative other end with second pressure sensor 22 butt. One end of the conductive silica gel is connected with the first PCB 72, and the other end opposite to the conductive silica gel is connected with the first pressure sensor 21.

Example 6

As shown in fig. 8, in the present embodiment, the housing 71 is formed with a chamber for accommodating the pen core 10 and the image capturing assembly, one end of the pen core 10 for writing is exposed out of the housing 71, and one end of the housing 71 where the pen core 10 is exposed is provided with a first opening 91 for allowing external light to enter the image capturing assembly; the first chip 84; the light source device 92 is located at one side of the image pickup assembly in a first direction, which is a radial direction of the pen core 10, and the light source device 92 includes a light emitting part inclined toward the first opening 91. The light emitted from the light emitting part of the light source device 92 is irradiated to the writing medium printed with the dot matrix code near the pen tip through the first opening 91, so that the writing medium in a certain range near the pen tip is irradiated with the light, and the light is reflected by the writing medium and then enters the image acquisition device. The image acquisition component converts the optical signal reflecting the coordinate lattice code image into a digital signal and sends the digital signal to the first chip 84. The first chip 84 calculates the position of the pen tip relative to the writing medium from the image captured by the image capture device. After the light source device 92 irradiates, the brightness of the light reflecting the coordinate dot code image is improved, which is beneficial to the collection of the image.

Because this embodiment sets up light source device 92 in image acquisition device's side, make simultaneously luminous component court first opening 91 direction slope, the light that luminous component sent forms certain contained angle with the length direction of smart pen like this, when the user writes, the smart pen inclines certain angle for writing the medium relatively, and the angle that luminous component inclined to writing the medium relatively then reduces, make the difference of writing the different positions of medium apart from luminous component's distance and angle in the light irradiation range reduce, it is also more even just also to shine the light on writing the medium like this, the effect that image acquisition device gathered the image is also better, be favorable to first chip 84 to decode according to gathering the image fast accurately.

In addition, in this embodiment, the light source device 92 further includes an optical component, which is located on a path through which the light emitted by the light emitting component passes, and is used for adjusting the emitting direction of the light emitted by the light emitting component. In order to further improve the irradiation effect of the light source device 92 on the writing medium, the present embodiment utilizes the optical assembly to adjust the light emitted by the light emitting component to irradiate the writing medium according to the set direction, so that the light can be accurately and uniformly irradiated to the position near the pen point, thereby further improving the image capturing effect. The optical component may be a single optical element or a plurality of optical elements, and is not limited herein.

In this embodiment, the optical assembly is also used to adjust the brightness and/or the irradiation area and/or the irradiation position of the light emitted by the light emitting member on the medium to be written. For example, the light emitted from the light emitting part may be condensed by a convex lens to increase the brightness of the light irradiated on the writing medium or to reduce the area of the light irradiated on the writing medium. For example, the light emitted from the light emitting unit may be diffused by the convex lens to appropriately reduce the brightness of the light irradiated on the writing medium or to enlarge the irradiation area on the writing medium. As a preferred embodiment, the optical assembly comprises a focal length adjustable optical device. The variable focus optical assembly thus adjusts the focal position of the light to adjust the location and extent of the light impinging on the writing medium. In this embodiment, an optical device with a continuously adjustable focal length may be used, so that the irradiation range and intensity of the light may be continuously adjusted to optimize the irradiation effect of the light. As a preferable mode, the variable-focus optical device may employ a liquid crystal lens, and the first chip 84 controls a driving voltage of the liquid crystal lens to continuously adjust a focal length of the liquid crystal lens or change a position of the focal point, thereby flexibly and respectively adjusting brightness, an area and an irradiation range of light irradiation. The device adopting the light ray adjustment only needs to change the driving voltage without adding an additional mechanical adjusting mechanism, so that the structure is simple, and real-time adjustment can be carried out according to a writing scene. The smart pen of this embodiment also includes a power source. The image capture assembly is electrically connected to the power source via a first chip 84. The power supply therein provides electrical power to the electrical components in the smart pen, such as the image capture assembly, the first chip 84, etc.

The utility model discloses a collection effect comparison of formula intelligence pen writing is inhaled to magnetism can refer to figure 9-1, figure 9-2, figure 9-3, figure 9-4, figure 10-1, figure 10-2, figure 10-3, figure 10-4. From the foregoing figures, it can be seen that the effect of the variation of the stroke shape and the stroke thickness of the characters collected by the intelligent pen of the present invention in fig. 9-2 and fig. 10-2 is better than the effect of the variation of the stroke shape and the stroke thickness of the characters collected by the prior art intelligent pen in fig. 9-4 and fig. 10-4.

The utility model discloses a refill can adopt the refill of different length specifications, for example 67mm, 130mm, 210mm etc. and specific length can design according to actual need, does not do the restriction here.

It is right above the embodiment of the utility model provides a magnetic type intelligence pen, the detailed introduction of intelligence pen.

It is to be understood that the invention is not limited to the particular arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples.

The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like.

It should also be noted that the exemplary embodiments mentioned in the present disclosure describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in a different order from the embodiments, or may be performed simultaneously.

As described above, only the specific embodiments of the present invention are provided, and those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working processes of the system, the module and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered by the scope of the present invention.

Claims

1. Formula intelligence pen is inhaled to magnetism, its characterized in that includes:

a pen core;

a magnetic component;

2. A magnetic-type intelligent pen as claimed in claim 1, wherein the magnetic assembly comprises a first magnetic part and a second magnetic part which can attract each other, the first magnetic part is arranged at one end of the support far away from the pen core, and the second magnetic part is arranged in the pressure sensor module.

3. The magnetic-type smart pen according to claim 2, wherein the pressure sensor module further comprises a first sliding member, and the first sliding member is slidably connected with the bracket.

4. A magnetic-type smart pen as claimed in claim 3, wherein the pressure sensor module comprises a first pressure sensor and a second pressure sensor.

5. A magnetic intelligent pen as claimed in claim 4, wherein the second magnetic member is mounted on the first sliding member, the first pressure sensor is arranged at one end of the first sliding member facing the pen core, the end of the bracket far away from the pen core is provided with a fixing part, the second pressure sensor is mounted at one end of the fixing part facing the first sliding member, and the first magnetic member is mounted on the fixing part.

6. The magnetic-type smart pen according to claim 4, further comprising a pre-pressing member, wherein the pre-pressing member is disposed at an end of the first slider facing the second pressure sensor, and the second pressure sensor and the pre-pressing member form a pre-pressing.

7. The magnetic-type smart pen as claimed in claim 6, wherein the pre-pressing member is made of magnetic material, and the pre-pressing member is used as the second magnetic member.

8. A magnetic intelligent pen as claimed in claim 4, wherein the second magnetic member is mounted on the first sliding member, the first pressure sensor is disposed at an end of the first sliding member facing the pen core, the second pressure sensor is disposed at an end of the first sliding member away from the pen core, a fixing portion is disposed at an end of the bracket away from the pen core, and the first magnetic member is mounted on the fixing portion.

9. The magnetic-type intelligent pen as claimed in claim 4, further comprising a touch and press member, wherein the touch and press member is positioned at one end of the pen core facing the first pressure sensor, and the pen core drives the touch and press member to touch and press the first pressure sensor when being subjected to pressure.

10. A magnetic intelligent pen as claimed in any one of claims 4 to 9, further comprising a second sliding member connected to one end of the pen core facing the pressure sensor module, wherein the bracket and the housing enclose a sliding groove for the pen core to slide along the length direction.