CN210091110U

CN210091110U - Intelligent pen capable of improving precision of collected image information

Info

Publication number: CN210091110U
Application number: CN201920598749.9U
Authority: CN
Inventors: 吴雄新
Original assignee: Shenzhen Teng Long Li Technology Co Ltd
Current assignee: Shenzhen Teng Long Li Technology Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-02-18
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to an improve intelligent pen of gathering image information precision, include: the pen comprises a pen core and an image acquisition assembly, wherein the pen core and the image acquisition assembly are arranged in a pen shell, and the pen core is characterized in that an image acquisition unit comprises a signal transmitter and a signal receiver, the signal transmitter is a light emitting diode, the signal receiver is a camera assembly, the light emitting diode is combined with the camera assembly, the pen core comprises a pen point, and the distance L between the axis of the camera unit and the axis of the pen point is 2.5-4.5 mm; has the advantages that: the refill is inclined, so that the distance between the pen point of the refill and the axis of the image acquisition unit is changed into a distance L, and the distance L is 2.5-4.5mm, thus image information with higher precision can be obtained without replacing the image acquisition unit, and the cost cannot be increased.

Description

Intelligent pen capable of improving precision of collected image information

Technical Field

The utility model belongs to the technical field of intelligence writing pen technique and specifically relates to an improve intelligent pen of gathering image information precision is related to.

Background

With the development of science and technology, various intelligent devices appear like bamboo shoots in the spring after rain, the traditional habits of people are profoundly changed, people rely on various intelligent devices more and more, and the electronization of files meets greater and greater requirements, so that various intelligent pens are used for writing or drawing on traditional paper or a blackboard or an object, writing or drawing on a touch display screen or a touch screen, displaying on the touch display screen or the display screen, and storing electronic files.

However, most of the existing smart pens do not notice the influence of the image acquisition assembly on the smart pen, and when a general smart pen acquires a writing page 12 (paper, a blackboard, an object, a touch display screen or a touch screen) with position codes, the acquired information is lost and cannot be read out due to insufficient light or coverage area of the image acquisition assembly; therefore, the accuracy of the camera assembly in the image capturing assembly is provided to solve the above problems, and thus, the cost of the smart pen is increased.

In view of the foregoing, there is a need for a smart pen that does not require the purchase of a high-precision camera assembly and that can improve the accuracy of image capture information.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned not enough that prior art exists, the utility model provides an improve intelligent pen of gathering image information precision utilizes a refill slope a little angle, lets nib and camera subassembly's wheel base distance L reach between 2.5-4.5mm, solves above-mentioned technical problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an intelligent pen for improving the accuracy of image information acquisition comprises: the pen comprises a pen core and an image acquisition unit, wherein the image acquisition unit comprises a signal transmitter and a signal receiver, the signal transmitter is a light emitting diode, the signal receiver is a camera assembly, the light emitting diode is combined with the camera assembly, the pen core comprises a pen point, and the distance L between the axis of the camera assembly and the axis of the pen point is 2.5-4.5 mm.

As a preferred technical solution of the present invention, the nib includes any one or any combination of the following technical features, and the nib is a pencil; the pen point is a pen; the pen point is a ballpoint pen; the pen point is an oil pen; the pen point is a water-based pen; the pen point is a writing brush; the pen point is a water color pen; the pen point is an oil painting brush; the pen point is a capacitance pen; the pen point is a resistance pen; the pen point is an electromagnetic pen; the pen point is a whiteboard pen.

As a preferred technical scheme of the utility model, the pen further comprises a pressure sensor connected with the sliding block assembly, a sliding block silica gel pad is arranged between the sliding block assembly and the pressure sensor, when the pen core is used for writing, the generated pressure is transmitted to the pressure sensor to generate a sensing signal, and a processor, a signal transmitter and a signal receiver are started; the signal emitter is connected with the pressure sensor and emits a detection signal to the object to be detected around the pen point; the signal receiver is connected with the pressure sensor, receives a detection signal reflected from the object to be detected and generates image data; the processor is connected with the pressure sensor and the signal receiver, receives the image data sent by the signal receiver, analyzes the image data into digital signals and generates transmission data packets; and the wireless data interface is connected with the processor and transmits the transmission data packet to the upper computer in a wireless mode.

As an optimal technical scheme of the utility model, the intelligence pen still includes: and the memory is connected with the processor and used for storing the image data and the transmission data packet.

As the utility model discloses a preferred technical scheme, wireless data interface will be stored transmission data package in the memory transmits the host computer through wireless mode.

As the preferred technical scheme of the utility model, wireless data interface specifically is bluetooth interface, infrared interface, Wifi interface, 2.4-5.0GHz wave band interface or wireless communication interface.

As an optimal technical scheme of the utility model, the intelligence pen still includes: the power supply is connected with the pressure sensor, the processor, the signal transmitter and the signal receiver; a switching circuit connected to the power supply; the pressure sensor, the processor, the signal transmitter and the signal receiver are located on the second circuit board.

By combining the technical scheme, the intelligent pen is different from the traditional intelligent pen for improving the accuracy of image information acquisition. The utility model has the advantages that: the refill is inclined, so that the distance between the pen point of the refill and the axis of the image acquisition unit is changed into a distance L, and the distance L is 2.5-4.5mm, thus image information with higher precision can be obtained without replacing the image acquisition unit, and the cost cannot be increased.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Figure 1 is the utility model discloses an improve image information accuracy's intelligent pen's image acquisition subassembly structure schematic diagram.

Fig. 2 is the structure diagram of the intelligent pen with the function of improving the precision of the collected image information.

Fig. 3 is the utility model discloses the module schematic diagram of the intelligent pen that has this improvement and gather image information precision.

Figure 4 is the utility model discloses have this intelligent pen refill and camera subassembly apart from L schematic diagram that improve the collection image information precision.

Description of the reference numerals

1. A pen housing; 101. a support; 2. a pen core; 201. a pen point; 204. a sliding block silica gel pad; 3. a pressure sensor; 4. an image acquisition component; 401. a camera assembly; 402. a light emitting diode; 6. a processor; 7. a data interface; 72. a wireless data interface; 8. a memory; 9. a switching circuit; 10. a power source; 11. a sliding block assembly; 111. a slider housing; 112. a sliding block positioning piece; a distance L; 12. and writing the page.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "outer", "inner", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other; also, the term "and/or" includes "and" or "two possible embodiments.

The utility model provides an improve intelligent pen of gathering image information precision, as shown in FIG. 1, when the user used the intelligent pen that is activated with the same mode of using ordinary pen to write, emitting diode 402 illuminated near the region of nib. The camera assembly 401 records images of the pen near the tip 201 on the writing sheet and the processor 6 calculates the position of the tip 201 from these images. Specific graphics on the written page 12, such as CN101064013A image index structures (position codes), may be used herein, and are incorporated by reference. With the aid of the graphics on the written page 12, the position of the nib 201 can be determined at any time and the content of the user's writing can thus be recorded. The camera assembly 401 is preferably a solid state image sensor, but other types of two-dimensional detectors may be employed, such as detectors that can read chemical, acoustic, electromagnetic, capacitive, or inductive symbols.

The relative position of the tip 201 and the camera assembly 401 is important in order to determine the position of the tip 201. To further illustrate this problem, the various components of the nib 2 that have different inclinations with respect to the page of writing 12 are concerned.

The camera assembly 401 ensures that the recorded image has sufficient sharpness over the relevant part of the imaging area. The pen point 201 is placed on the writing surface 12, the light of the camera assembly 401 is irradiated on the writing surface 12, and a distance L is generated between the pen point 201 and the optical axis of the camera assembly 402. If the size of the distance L is not adequately controlled, the distance L may be so large for some pens that the camera assembly 401 cannot send useful images to the processor 6. This problem can be solved by employing a more fine-grained camera module 401, which, however, results in a limitation of the amount of light transmitted from the imaging component to the sensor; and the cost of the entire pen would be even higher.

In decoding the position encoded graphic on the written page 12, the distance L is important in correlating the position of the strokes read by the smart pen with the physical strokes on the written page 12. For example, the processor 6 may be arranged to calculate the spatial orientation (tilt or rotation) and position of the pen from an image, and to learn this position, the spatial orientation and the distance L to calculate the writing position, i.e. the position of the pen tip 201. Thus, deviations from the value of distance L at the calculated writing position can lead to systematic errors.

Furthermore, and above all, if the axial distance L between the pen tip 201 and the camera assembly 401 is reduced, this will also affect the distance of the focal plane of the camera assembly 401 with respect to the written page 12, and therefore the distance L must be in an interval of value.

The pen core 2, the sensor and the imaging part are mounted on different parts of the interior of the pen, and the light emitting diode 402 and the camera assembly 401 of the imaging part are arranged on the holder 101. Thus, the mounting accuracy of the pen can be significantly improved, since several sources of deviation are eliminated. The mounting holes formed on the pen case 1 are used for the camera module 401, the light emitting diode 402 and the pen core 2, respectively.

On the written page 12, the illuminated area must be quite large compared to the imaged area. Ensuring good illumination of the area scanned by the camera assembly 401 improves the probability of determining the position of the pen tip with high accuracy. The illuminated area can be adjusted to a higher degree than before to the imaging area, which means that the light intensity in this area can be increased. To save current and thereby extend battery life, the drive current into the light emitting diode can be reduced without degrading detectability; of course, the light emitting diode 402 is preferably a laser diode.

The stent is injection molded from a thermoplastic, for example, including polycarbonate and ABS plastic. Other materials such as thermoset plastics or metals may also be used for the bracket. Shaping can also be carried out, for example, by casting or milling.

The cartridge 2 is insertable into the through hole to form a separate part. When needed, the through hole can be inclined at a certain angle, so that the distance L between the pen core 2 and the optical axis of the camera assembly 401 is reduced, and the range of the distance L is 2.5mm-4.5 mm.

The light emitting diode 402 and the camera module 401 are fixed to the stand 101. Thus, the light emitting diode 402 is securely fixed from tilting with respect to the position of the camera assembly 401.

The pen housing 1 and holder 101 are made of a material that is opaque to the illumination light associated with the light emitting diodes 402 and the illuminated writing surface 12. This reduces the risk of unwanted irradiation light entering the pen interior and interfering with reading the positional code of the written page 12.

It is also suitable to mount one or more main circuit boards within the pen housing of the pen when the pen is manufactured. One or more processors, memory units (memory 8) and image acquisition components 4 (signal transmitters, signal receivers) as well as wiring, charging sockets and the like may also be mounted on/integrated with the main circuit board(s). The camera assembly is then connected to the processor using a flexible electrical coupling. Additional components such as a battery may be installed inside the pen before the pen housing 1 is sealed, for example by joining the two halves of the housing.

As shown in fig. 2 and 3, the smart pen includes: the pen comprises a pen shell 1, a pen refill 2, a pressure sensor 3, a signal transmitter, a signal receiver, a processor 6 and a wireless data interface 72. The signal transmitter and the signal receiver can be an image acquisition assembly integrated by a light emitting diode and a camera unit.

The pen casing 1 may be made of engineering plastic, and generally includes two casings that can be fastened together to accommodate other devices in the pen casing 1.

The pen point of the pen core 2 extends out of the pen shell, and the pen core 2 is used for writing, namely strokes and orders are generated, and the writing can be performed on paper or a whiteboard. If writing on paper, the refill may be an oil (ball-point) refill, a water (neutral) refill, a pencil refill, an erasable (ink-decomposing) refill, an erasable (ink-curing) refill, a plastic (PP, PET, PVC, etc.) refill, etc. If the writing is written on the white board, the white board can be a handheld white board or a white board externally hung and adhered on the wall surface.

Pressure sensor 3, with sliding block subassembly 11 is connected, be provided with sliding block silica gel pad 204 between sliding block subassembly 11 and the pressure sensor 3, produced pressure transmission to pressure sensor 3 produces sensing signal when refill 2 writes, starts treater 6, signal transmitter and signal receiver.

The pressure sensor 3 is used for indicating that the pen core 2 is written and the intelligent pen needs to work. The pressure sensor 3 can be matched differently according to the use scene of the intelligent pen. For example, when writing on a paper surface, since the paper surface is elastically compressible, the sensitivity of the pressure sensor 3 needs to be high, otherwise it is impossible to recognize that the pen core 2 is writing. When writing on the whiteboard, because the whiteboard is hard and has little elasticity, the sensitivity of the pressure sensor can be slightly smaller, and the pen core 2 can be identified to be writing.

The signal emitter is connected with the pressure sensor 3 and emits a detection signal to the object to be detected around the pen point. When the pressure sensor 3 senses the writing pressure of the pen core 2, the signal transmitter starts to work and transmits signals. The signal generator 4 may be a transmitter that transmits sound waves, ultrasonic waves, infrared rays, ultraviolet rays, visible light (each band), X-rays, gamma rays, or the like.

Optionally, the signal emitter emits the detection signal in a plurality of ways, specifically, in a continuous or fixed frequency or variable frequency or frequency modulation way, to emit the detection signal to the object to be detected around the pen tip.

The signal receiver is connected to the pressure sensor 3, and receives a detection signal reflected from the object to be measured, and generates image data. The image data at this time is an analog signal. The signal receiver needs to be matched with the signal transmitter to receive the detection signal reflected from the object to be measured. Because the transmitter 4 transmits a detection signal to the object to be measured around the pen core 2, the signal receiver generates an image of the object to be measured around the pen core 2. When the pressure sensor 3 senses the writing pressure of the pen core 2, the signal receiver starts to work, receives a detection signal reflected by an object to be detected, and generates analog image data.

The processor 6 is connected with the pressure sensor 3 and the signal receiver, receives the image data sent by the signal receiver, analyzes the image data into a digital signal, and generates a transmission data packet. When the pressure sensor 3 senses the pressure written by the pen core 2, the processor 6 starts to work, processes the received analog image data into digital signal data, and then generates a transmission data packet.

Optionally, when sensing the pressure written by the pen core 2, the pressure sensor 3 generates pressure-sensitive data and sends the pressure-sensitive data to the processor 6, and the processor 6 analyzes the image data into a digital signal and encodes the digital signal, the pressure-sensitive data sent by the pressure sensor, the clock and a time axis into a standard transmission data packet.

The wireless data interface 72 is connected to the processor 6 and transmits the transmission data packet to the upper computer in a wireless manner. The wireless data interface 72 is used for transmitting data packets to the upper computer in a wireless manner, which is convenient and does not require cable connection. Specifically, the wireless data interface is a bluetooth interface, an infrared interface, a Wifi interface, a 2.4-5.0GHz band interface, or a wireless communication interface. The Bluetooth interface, the infrared interface, the Wifi interface and the 2.4-5.0GHz band interface are used for wireless local area network communication, and the communication interface can utilize 2G, 3G or 4G technology to communicate with an upper computer by utilizing a communication network.

And the upper computer acquires the image information of the object to be detected around the pen point according to the transmission data packet, and realizes accurate positioning and synchronous data electronization by utilizing a dot matrix technology.

As shown in the figure again, the utility model discloses an intelligence pen still includes: memory 8, power supply 10, switching circuit 9.

The memory 8 is connected to the processor 6 and stores image data and transmission data packets. The wireless data interface 72 transmits the transmission data packet stored in the memory 8 to the upper computer in a wireless manner.

It should be noted here that there are two cases in which the wireless data interface 72 transmits the transmission data packet to the upper computer, one is real-time transmission, the processor 6 analyzes the image data into a digital signal in real time, and encodes the digital signal with the pressure-sensitive data sent by the pressure sensor, the clock and the time axis into a standard transmission data packet in real time, and then the wireless data interface 72 transmits the transmission data packet to the upper computer in a wireless manner in real time. In another non-real-time transmission mode, the processor 6 analyzes the image data into digital signals in real time, encodes the digital signals with pressure sensing data sent by the pressure sensor and a clock and a time axis into standard transmission data packets in real time, stores the standard transmission data packets in the memory 8, and transmits the transmission data packets stored in the memory 8 to the upper computer through the wireless data interface 72 at set time or in other non-real-time modes.

The power supply 10 is connected to the pressure sensor 3, the processor 6, the signal transmitter and the signal receiver. The purpose of the power supply 10 is to power the pressure sensor 3, the processor 6, the signal transmitter and the signal receiver 5.

Specifically, the power source 10 may be a battery, such as a rechargeable battery.

The switch circuit 9 is connected with the power supply 10, and is used for controlling the power supply 10 to supply power to the pressure sensor 3, the processor 6, the signal transmitter and the signal receiver, and can be realized by using a hard switch.

In addition, the high-comfort intelligent pen can further comprise a first circuit board and a second circuit board which are flexibly connected, the switch circuit 9 and the wireless data interface are located on the first circuit board, and the pressure sensor, the processor, the signal transmitter and the signal receiver are located on the second circuit board. The first circuit board and the second circuit board are separated by a battery, and the connection mode can utilize flexible connection.

The utility model discloses the concrete working process of high comfort level intelligence pen as follows:

1. opening a switch circuit, switching on a power supply, detecting the self state of the pressure sensor, the processor, the signal transmitter and the signal receiver, and keeping the pressure sensor, the processor, the signal transmitter and the signal receiver in a standby state;

2. the pen point of the pen core writes, pressure generated when the pen core writes is transmitted to the pressure sensor to generate a sensing signal, the processor, the signal transmitter and the signal receiver are started to work, and data including the stress direction and the stress magnitude are sent to the processor;

3. the signal emitter emits a detection signal to the object to be detected around the pen point;

4. the signal receiver receives a detection signal reflected from the object to be detected according to a set frequency, generates image data and sends the image data to the processor, wherein the image data is an image collected around a pen point and is an analog image signal;

5. the processor receives the analog image signal, analyzes the analog image signal into digital signal by a set program algorithm, and encodes the digital signal, the pressure-sensitive data, the clock, the audio time shaft and the like into a transmission data packet in a standard data packet format;

6. the processor sends the standard data format to the wireless data interface or the memory according to the task instruction;

7. the wireless data interface sends the transmission data packet sent by the processor to the upper computer in real time or sends the transmission data packet stored in the memory to the upper computer in non-real time;

8. the pen core stops writing, the pressure sensor does not generate a sensing signal any more, and the processor, the signal transmitter and the signal receiver stop working;

9. and the switch circuit is closed, the power supply is disconnected, and the power is not supplied to the pressure sensor, the processor, the signal transmitter and the signal receiver any more.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Claims

1. An intelligent pen for improving the accuracy of image information acquisition, comprising: the pen comprises a pen core and an image acquisition assembly, wherein the pen core and the image acquisition assembly are arranged inside a pen shell, and the pen is characterized in that the image acquisition unit comprises a signal transmitter and a signal receiver, the signal transmitter is a light emitting diode, the signal receiver is a camera assembly, the light emitting diode and the camera assembly are combined together, the pen core comprises a pen point, and the distance L between the camera assembly and the axis of the pen point is 2.5-4.5 mm.

2. The smart pen for improving the accuracy of image information acquisition according to claim 1, wherein the pen tip comprises any one or any combination of technical features, and the pen tip is a pencil; the pen point is a pen; the pen point is a ballpoint pen; the pen point is an oil pen; the pen point is a water-based pen; the pen point is a writing brush; the pen point is a water color pen; the pen point is an oil painting brush; the pen point is a capacitance pen; the pen point is a resistance pen; the pen point is an electromagnetic pen; the pen point is a whiteboard pen.

3. The intelligent pen capable of improving the accuracy of image information acquisition according to claim 1 or 2, further comprising a pressure sensor and a sliding block assembly, wherein the pressure sensor is connected with the sliding block assembly, a sliding block silica gel pad is arranged between the sliding block assembly and the pressure sensor, when the pen core writes, the generated pressure is transmitted to the pressure sensor, a sensing signal is generated, and a processor, a signal transmitter and a signal receiver are started; the signal emitter is connected with the pressure sensor and emits a detection signal to the object to be detected around the pen point; the signal receiver is connected with the pressure sensor, receives a detection signal reflected from the object to be detected and generates image data; the processor is connected with the pressure sensor and the signal receiver, receives the image data sent by the signal receiver, analyzes the image data into digital signals and generates transmission data packets; and the wireless data interface is connected with the processor and transmits the transmission data packet to the upper computer in a wireless mode.

4. The smart pen for improving the accuracy of image information acquisition according to claim 3, further comprising: and the memory is connected with the processor and used for storing the image data and the transmission data packet.

5. The intelligent pen for improving the accuracy of the collected image information according to claim 4, wherein the wireless data interface transmits the transmission data packet stored in the memory to the upper computer in a wireless mode.

6. The smart pen for improving the accuracy of image information collection according to claim 5, wherein the wireless data interface is a Bluetooth interface, an infrared interface, a Wifi interface, a 2.4-5.0GHz band interface, or a wireless communication interface.

7. The smart pen for improving the accuracy of image information acquisition according to claim 6, further comprising: the power supply is connected with the pressure sensor, the processor, the signal transmitter and the signal receiver; a switching circuit connected to the power supply; the pressure sensor, the processor, the signal transmitter and the signal receiver are located on the second circuit board.