CN109922966B

CN109922966B - Drawing device and drawing method

Info

Publication number: CN109922966B
Application number: CN201780069104.XA
Authority: CN
Inventors: 浅冈聪子; 竹内太一; 栗原研一; 大石雄纪; 贝野由利子; 首藤绫; 平井畅一; 高桥功; 梶尾祐介; 手岛飞鸟; 和田胜
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 2016-11-15
Filing date: 2017-09-14
Publication date: 2021-04-06
Anticipated expiration: 2037-09-14
Also published as: CN109922966A; JP2022078089A; JPWO2018092397A1; WO2018092397A1; JP7028185B2

Abstract

The drawing device of the present disclosure is provided with: an irradiation unit that irradiates, in a first period, first light to a first recording area of a recording object in which an image is visually recorded by using predetermined light, and irradiates, in a second period subsequent to the first period, second light as the predetermined light to a second recording area that is the same as or included in the first recording area; and a control unit controlling an operation of the light emitting unit.

Description

Drawing device and drawing method

Technical Field

The present disclosure relates to a drawing device that performs drawing on a recording medium, and a drawing method used with such a drawing device.

Background

There are often cases where it is necessary to rewrite an image in a recording medium capable of visually recognizing a recorded image. For example, PTLs 1 and 2 disclose recording media in which an image is rewritten by heating.

In the case where an image is recorded in such a recording medium, the drawing device irradiates the recording medium with infrared light in a pattern corresponding to the image to be drawn. Therefore, in the recording layer of the recording medium, the photothermal conversion material absorbs infrared light of a wavelength corresponding to the photothermal conversion material to generate heat. Further, the dye is bonded to the developer in a colored state or separated from the developer to a discolored state according to heat. As a result, an image is recorded in the recording medium.

Reference list

Patent document

Patent document 1: japanese unexamined patent application publication No. 2004-74584

Patent document 2: japanese unexamined patent application publication No. 2004-155010

Disclosure of Invention

Generally, for a drawing device, high image quality of a drawn image is desired. High image quality is also desired for the drawing device that rewrites an image by heat as described above.

It is desirable to provide a drawing apparatus and a drawing method which make it possible to improve image quality.

A drawing device according to an embodiment of the present disclosure includes an irradiation unit and a control unit. The irradiation unit irradiates a first recording area of a recording object with first light in a first period, and irradiates a second recording area, which is the same as or included in the first recording area, with second light as predetermined light in a second period after the first period, an image being recorded in the recording object with the predetermined light being visually recognizable. A control unit controls operation of the illumination unit.

The drawing method according to the embodiment of the present disclosure includes: causing an irradiation unit to irradiate a first recording area of a recording object in which an image is recorded with predetermined optical energy visually recognizable with first light during a first period; causing the irradiation unit to irradiate a second recording area, which is the same as or included in the first recording area, with second light as the predetermined light in a second period after the first period.

In the drawing device and the drawing method according to the embodiment of the present disclosure, by using a predetermined light, an image can be visually identifiably recorded in a recording object. First, in a first period, a first recording area of a recording target is irradiated with first light. Thereafter, in a second period, the second recording area is irradiated with the second light serving as the predetermined light. The second recording area is the same as or included in the first recording area.

According to the drawing device and the drawing method of the embodiment of the invention, in the first period, the first recording area of the recording object is irradiated with the first light. In the second period, the second recording area is irradiated with the second light serving as the predetermined light. The second recording area is the same as or included in the first recording area. Therefore, image quality can be improved. It should be noted that the effects described herein are not necessarily limited, and any of the effects described in the present disclosure may be provided.

Drawings

Fig. 1 is an explanatory diagram showing one example of a house in which a drawing device according to one embodiment of the present disclosure is used.

Fig. 2 is a cross-sectional view of one configuration example of the flooring shown in fig. 1.

Fig. 3 is a block diagram showing one configuration example of the drawing device according to the first embodiment.

Fig. 4 is an explanatory diagram showing one example of a scanning operation of the drawing device shown in fig. 3.

Fig. 5 is a flowchart showing an example of the operation of the drawing device shown in fig. 3.

Fig. 6 is a state transition diagram showing an example of operation in pre-scanning of the drawing device shown in fig. 3.

Fig. 7 is a state transition diagram showing an example of operation in the drawing scan of the drawing apparatus shown in fig. 3.

Fig. 8 is a flowchart showing one example of the operation of the drawing device according to the modification of the first embodiment.

Fig. 9 is a flowchart showing one example of the operation of the drawing device according to another modification of the first embodiment.

Fig. 10 is an explanatory diagram showing one example of a house in which a drawing device according to another modification of the first embodiment is used.

Fig. 11 is a block diagram showing one configuration example of a drawing device according to the second embodiment.

FIG. 12 is a descriptive diagram showing one display example of guidance.

Fig. 13 is a flowchart showing an example of the operation of the drawing device shown in fig. 11.

Fig. 14 is a state transition diagram showing one operation example in the pre-scanning of the drawing device shown in fig. 11.

Fig. 15 is a state transition diagram showing one operation example in the drawing scan of the drawing device shown in fig. 11.

Fig. 16 is an explanatory diagram showing one example of a house in which the drawing device according to the third embodiment is used.

Fig. 17 is a block diagram showing one configuration example of a drawing device according to the third embodiment.

Fig. 18 is an explanatory diagram showing one example of a scanning operation of the drawing device shown in fig. 17.

Fig. 19 is a flowchart showing an example of the operation of the drawing device shown in fig. 17.

Fig. 20 is a state transition diagram showing one operation example in the pre-scanning of the drawing device shown in fig. 17.

Fig. 21 is a state transition diagram showing one operation example in drawing scanning of the drawing device shown in fig. 17.

Fig. 22 is an explanatory diagram showing one example of a house in which a drawing device according to another modification of the third embodiment is used.

Fig. 23 is an explanatory diagram showing an example of a scanning operation of the drawing device according to the modification.

Detailed Description

Hereinafter, some embodiments of the present disclosure are described in detail with reference to the accompanying drawings. Note that the description is made in the following order.

1. First embodiment

2. Second embodiment

3. Third embodiment

<1. first embodiment >

[ application example ]

Fig. 1 shows an example of a house 100 in which the drawing device (drawing device 1) according to the first embodiment is used. It should be noted that in this example, for convenience of description, it is assumed that the number of rooms in the house 100 is 1, but this is not limitative. There may be multiple rooms. In the home 100, a security system is implemented. In the security system, a security management unit provided in, for example, a console 101 provides security management of the house 100. The security management unit has, for example, two operation modes (normal mode M1 and alarm mode M2). The normal mode M1 is an operation mode used when the user is in the home 100. The alarm mode M2 is an operation mode used when the user is out. In the case of going out, the user sets the operation mode to the alarm mode M2 using the console 101. Thus, the security management unit monitors, for example, the opening and closing of the door 102 and the window 103. Further, during the operation in the alarm mode M2, in the event of any abnormality in the door 102 and the window 103, the security management unit notifies the server of the occurrence of the abnormality. The server is managed by the company running the security system.

In the house 100, the drawing device 1 is mounted on the ceiling in this example. The drawing device 1 draws a drawing on a floor material 90 laid on the floor of a house 100. For example, the drawing device 1 can be detachably mounted on the ceiling of the house 100. In this case, attachment may be made to a ceiling lamp adapter provided on a ceiling. Further, the installation can be performed by (built-in) incorporation in the ceiling of the house 100.

The drawing device 10 irradiates the floor material 90 with infrared light LIR in a pattern corresponding to an image to be drawn. The image to be drawn may be, for example, a monochrome image, or an image having a pattern such as wood grain and marble. Alternatively, photographic images or images comprising characters or symbols are also possible.

Fig. 2 shows one configuration example of the flooring material 90. The flooring material 90 includes a substrate 91, recording layers 92, 94, and 96,

heat insulating layers

93 and 95, and a protective layer 97. A recording layer 92, a heat insulating layer 93, a recording layer 94, a heat insulating layer 95, a recording layer 96, and a protective layer 97 are sequentially formed on the surface of the substrate 91.

The base 91 is a base of the floor panel, and serves as a substrate on which each layer is formed on its surface. The color of the surface of the substrate 91 may be, for example, white, or may be other color than white.

The recording layers 92, 94, and 96 are each capable of reversible state change between a colored state and a faded state. The recording layers 92, 94, and 96 are configured such that their colors are different from each other in a colored state. Specifically, in this example, the recording layer 92 can be colored in magenta. The recording layer 94 can be colored in cyan. The recording layer 96 can be colored in yellow. It should be noted that this is not limitative, but the three

recording layers

92, 94, and 96 may have any correspondence with the three colors (magenta, cyan, and yellow). Further, the recording layers 92, 94, and 96 become transparent in a discolored state. Therefore, the flooring material 90 can record an image with colors of a wide color gamut.

Each of the recording layers 92, 94, and 96 may be configured to include, for example, a leuco dye. In this case, each of the recording layers 92, 94, and 96 may be configured to include, for example, a developer, a photothermal conversion material, and a polymer, in addition to the leuco dye. The leuco dye is bonded to the developer by heat in a colored state or separated from the developer into a faded state. The leuco dyes of the three

recording layers

92, 94, and 96 differ from each other in color in the colored state. The photothermal conversion material absorbs infrared light to generate heat. The photothermal conversion materials of the recording layers 92, 94, and 96 differ from each other in the wavelength of infrared light to be absorbed. In other words, the photothermal conversion material of the recording layer 92 absorbs infrared light of the wavelength λ 92. The photothermal conversion material of the recording layer 94 absorbs infrared light of the wavelength λ 94. The photothermal conversion material of the recording layer 96 absorbs infrared light of a wavelength λ 96.

The heat insulating layer 93 prevents easy heat transfer between the recording layer 92 and the recording layer 94. The heat insulating layer 95 prevents easy heat transfer between the recording layer 94 and the recording layer 96. The protective layer 97 protects the surface of the flooring material 90. The

heat insulating layers

93 and 95 and the protective layer 97 are formed using a transparent material.

With this configuration, an image can be recorded in the flooring material 90 with visual recognition. Specifically, the drawing device 10 irradiates the floor material 90 with infrared light LIR in a pattern corresponding to an image to be drawn. The infrared light LIR includes, for example, infrared light LIR of a wavelength λ 92, infrared light LIR of a wavelength λ 94, and infrared light LIR of a wavelength λ 96. The light intensity of the infrared light LIR of each wavelength is set according to the color of the image to be drawn. In the recording layer 92, the photothermal conversion material absorbs the infrared light LIR of the wavelength λ 92 to generate heat. In the recording layer 94, the photothermal conversion material absorbs the infrared light LIR of the wavelength λ 94 to generate heat. In the recording layer 96, the photothermal conversion material absorbs the infrared light LIR of the wavelength λ 96 to generate heat. Further, in each of the recording layers 92, 94, and 96, the heat generated by the photothermal conversion material causes the leuco dye to be bonded to the developer in a colored state or to be separated from the developer to a discolored state. In this way, in the flooring material 90, an image can be visually identifiably recorded. Further, in the flooring material 90, an image recorded in such a manner as to be visually recognizable may also be rewritten.

[ example of arrangement ]

Fig. 3 shows one configuration example of the drawing device 1. The drawing device 1 includes a light irradiation unit 20, a drawing control unit 11, a temperature distribution detection unit 12, a speaker 13, an indicator 14, a storage unit 30, a drawing condition setting unit 15, an image processing unit 16, a communication unit 17, and a control unit 19.

The light irradiation unit 20 irradiates the floor material 90 with infrared light LIR. Further, the light irradiation unit 20 has a function of irradiating the flooring material 90 with the visible light LV and detecting the visible light reflected from the flooring material 90. The light irradiation unit 20 includes a light source unit 21, a lens unit 22, a light detection unit 23, and a lens unit 24.

The light source unit 21 generates light L (infrared light LIR and visible light LV) with which the flooring material 90 is irradiated. The light source unit 21 is configured to include, for example, three laser light sources 21IR that generate infrared light and a single laser light source 21V that generates visible light. The three laser light sources 21IR are used for a pre-scan SC1 and a drawing scan SC2 described later, and generate infrared light LIR of different wavelengths from each other. The wavelengths of the infrared light LIR generated by the three laser light sources 21IR correspond to the wavelengths λ 92, λ 94, and λ 96 of the infrared light absorbed by the photothermal conversion materials of the recording layers 92, 94, and 96 of the flooring material 90, respectively. The light intensities of the infrared light LIR generated by the three laser light sources 21IR are configured to be able to be set independently of each other. The laser light source 21V is used for a pre-scan SC1 described later, and generates visible light LV of a predetermined wavelength. The light source unit 21 emits infrared light LIR of different wavelengths generated by the three laser light sources 21IR and visible light LV generated by the laser light source 21V, whose optical path axes substantially coincide with each other, toward the flooring material 90 through the lens unit 22.

The lens unit 22 guides the light L emitted from the light source unit 21 toward the flooring material 90. The lens unit 22 is constructed using, for example, one or more lenses, the focal length of which is adjustable based on a control signal supplied from the drawing control unit 11.

The light detection unit 23 detects visible light reflected from the flooring material 90 within the visible light LV emitted from the light source unit 21 in a pre-scan SC1 described later. The visible light reflected from the floor material 90 enters the light detection unit 23 through the lens unit 24.

The lens unit 24 guides the visible light reflected from the floor material 90 toward the light detection unit 23. The lens unit 24 is configured using, for example, one or more lenses, the focal length of which is adjustable based on a control signal supplied from the drawing control unit 11.

With this configuration, the light irradiation unit 20 irradiates the floor material 90 with the infrared light LIR. Further, the light irradiation unit 20 irradiates the flooring material 90 with the visible light LV and detects the visible light reflected from the flooring material 90. The light irradiation unit 20 is configured to be able to change the direction of the optical path axis of the light L (infrared light LIR and visible light LV) to be emitted by the light irradiation unit 20 based on an instruction from the drawing control unit 11. Accordingly, the light irradiation unit 20 can irradiate the floor material 90 with the light L while scanning.

The drawing control unit 11 controls the operation of the light irradiation unit 20 based on an instruction from the control unit 19. Specifically, for example, as shown in fig. 4, the drawing control unit 11 controls the direction of the optical path axis of the light L to allow the light irradiation unit 20 to irradiate the floor material 90 with the light L while scanning. Further, the drawing control unit 11 controls each light intensity of the infrared light LIR to be generated by the three laser light sources 21IR included in the light source unit 21, while controlling the light intensity of the visible light LV to be generated by the laser light source 21V. Further, the drawing control unit 11 also has a function of adjusting the focal lengths of the

lens units

22 and 24.

The temperature distribution detection unit 12 detects the temperature distribution in the floor material 90, and is configured using, for example, an infrared sensor.

With this configuration, the drawing device 1 performs the scanning operation when performing the drawing operation on the floor material 90. At this time, the drawing apparatus 1 performs the scanning operation twice (pre-scan SC1 and drawing scan SC 2). The pre-scanning SC1 is performed before actually performing drawing on the floor material 90, and is used to set drawing conditions such as the infrared light LIR when drawing is performed, as described later. The drawing scan SC2 is used to actually perform drawing on the flooring material 90.

In the pre-scan SC1, for example, any one of the three laser light sources 21IR of the light source unit 21 emits infrared light LIR whose light intensity is low enough not to perform drawing on the floor material 90, and the temperature distribution detection unit 12 detects a temperature change in the floor material 90 after irradiation with the infrared light LIR at each coordinate of the floor material 90. Further, for example, the laser light source 21V of the light source unit 21 emits visible light LV of a predetermined light intensity, and the light detection unit 23 detects the visible light reflected from each coordinate of the flooring material 90. On the basis of these detection results, the drawing condition setting unit 15 sets the drawing conditions of the infrared light LIR in the drawing scan SC2, as described below.

Further, in the drawing scan SC2, for example, the three laser light sources 21IR of the light source unit 21 emit infrared light LIR of light intensity according to the pixel value of the image to be drawn. Note that, in this example, in the drawing scan SC2, the laser light source 21V is suppressed from emitting the visible light LV. Thus, the image is recorded in the flooring material 90.

The speaker 13 notifies the user of the operation state of the drawing device 1 by sound. Specifically, for example, at the start of the operation of the drawing device 1, the speaker 13 may give a notification that the operation is about to start by sound and voice. Further, at the end of the operation of the drawing device 1, the speaker 13 may give a notification that the operation has ended by sound and voice.

The indicator 14 displays the operation state of the drawing device 1. Indicator 14 is constructed using, for example, one or more LEDs (light emitting diodes). Specifically, for example, in a case where the indicator 14 includes a plurality of LEDs different in color from each other, the indicator 14 may light one of the LEDs (for example, a yellow LED) during a period in which the drawing device 1 is in operation, and may light the other LED (for example, a red LED) during a period in which the drawing device 1 performs the drawing scan SC 2.

The storage unit 30 stores image data D to be rendered. For example, the image data D is supplied from a not-shown personal computer to the drawing device 1 through the communication unit 17, and stored in the storage unit 30.

The drawing condition setting unit 15 sets the drawing condition of the infrared light LIR in the drawing scan SC2 based on an instruction from the control unit 19. Specifically, the drawing condition setting unit 15 grasps information on the position of an obstacle such as furniture, and surface information such as a depression and a protrusion at each coordinate of the floor material 90, based on the detection result of the light detection unit 23 in the pre-scan SC 1. Further, the drawing condition setting unit 15 grasps information on the heat dissipation characteristic at each coordinate of the flooring material 90 based on the detection result of the temperature distribution detecting unit 12 in the pre-scan SC 1. Further, the drawing condition setting unit 15 grasps information on the temperature distribution in the heat equilibrium state of the flooring material 90 based on the detection result of the temperature distribution detecting unit 12 after the pre-scanning SC 1. Therefore, based on these pieces of information, the drawing condition setting unit 15 sets the drawing conditions of the infrared light LIR in the drawing scan SC 2. The drawing conditions include, for example, conditions for performing the drawing scan SC2, such as a scanning area, light intensity of the infrared light LIR, scanning speed, and focal length.

The image processing unit 16 performs predetermined image processing on the image data D stored in the storage unit 30 based on an instruction from the control unit 19. The predetermined image processing includes, for example, processing for enlarging or reducing the image in accordance with the area of the flooring material 90, interpolation processing for enhancing the image sharpness, and distortion correction processing for alleviating distortion caused by irradiating the flooring material 90.

The communication unit 17 communicates with various electronic devices using a wireless LAN (local area network) based on an instruction from the control unit 19. In this example, the communication unit 17 communicates with the console 101 using a wireless LAN. By communicating with the console 101, the communication unit 17 receives information about the operation mode of the security management unit and about the opening and closing of the door 102 and the window 103. Specifically, the user sets the operation mode to the alarm mode M2 when going out, whereby the console 101 sends a notification to the drawing device 1 that the operation mode has been set to the alarm mode M2. The communication unit 17 receives the notification. Further, for example, the door 102 or the window 103 is opened, and thereby, the console 101 transmits a notification to the drawing device 1 that the door 102 or the window 103 has been opened. The communication unit 17 receives the notification.

Further, the communication unit 17 communicates with the smartphone 9 through a router, not shown, via the internet and a mobile phone network, for example. By communicating with the smartphone 9, the communication unit 17 receives, for example, a start instruction or an end instruction of a drawing operation in the drawing apparatus 1 from the smartphone 9. Further, in the case where the drawing operation in the drawing apparatus 1 ends, the communication unit 17 transmits a notification that the drawing operation has ended to the smartphone 9 based on an instruction from the control unit 19.

The control unit 19 controls the operation of each block of the drawing device 1. The control unit 19 is constructed using, for example, a CPU (central processing unit), a RAM (random access memory), and a ROM (read only memory).

With this configuration, for example, the user closes the window 103 of the house 100, sets the operation mode to the alarm mode M2 using the console 101, goes out after checking that there is no other person in the house 100, and locks the door 102, whereby the console 101 notifies the drawing device 1 that the operation mode has been set to the alarm mode M2. In the drawing device 1, the communication unit 17 receives the information, and thereby the control unit 19 determines that the house 100 has entered a so-called closed room state. Thereafter, the user operates the smartphone 9 outside the home 100 to give a start instruction of the drawing operation in the drawing apparatus 1, whereby, in the drawing apparatus 1, the communication unit 17 receives the start instruction, and the control unit 19 starts the drawing operation. During the drawing operation, in a case where the communication unit 17 receives a notification from the console 101 that the door 102 or the window 103 has been opened, the control unit 19 stops the drawing operation. Thereafter, the drawing apparatus 1 performs the pre-scan SC1 and the drawing scan SC2, and ends the drawing operation, and thereby the communication unit 17 notifies the smartphone 9 that the drawing operation has ended, based on an instruction from the control unit 19. In this way, the user may be notified that the drawing on the flooring material 90 has ended.

Here, the light irradiation unit 20 corresponds to one specific example of "irradiation unit" in the present disclosure. The drawing control unit 11 and the control unit 19 correspond to a specific example of "a control unit" in the present disclosure. The drawing condition setting unit 15 corresponds to one specific example of "condition setting unit" in the present disclosure. The temperature distribution detection unit 12 corresponds to one specific example of "temperature detection unit" in the present disclosure. The pre-scan SC1 corresponds to one specific example of "first scan" in the present disclosure. The drawing scan SC2 corresponds to one specific example of "second scan" in the present disclosure.

[ operation and working ]

Next, the operation and working of the drawing device 1 of this embodiment are described.

(general operation as a whole)

First, referring to fig. 3, an outline of the overall operation of the drawing device 1 is described. In a case where the house 100 is in the closed room state, the communication unit 17 receives a start instruction of the drawing operation from the smartphone 9, whereby the drawing device 1 performs the drawing operation. Specifically, first, the plotter 1 performs the pre-scan SC 1. Thereafter, the drawing condition setting unit 15 sets the drawing condition of the infrared light LIR in the drawing scan SC2 based on the result of the pre-scan SC 1. Further, the image processing unit 16 performs predetermined image processing on the image data D stored in the storage unit 30. After that, based on the image data D subjected to the image processing, the drawing apparatus 1 performs the drawing scan SC2 using the set drawing conditions. Thus, the image is recorded in the flooring material 90. Thereafter, when the drawing operation of the drawing apparatus 1 ends, the communication unit 17 transmits a notification of the end of the operation to the smartphone 9 based on an instruction from the control unit 19.

(detailed operation)

The detailed operation of the drawing device 1 is described next. Next, described is an operation when the drawing device 1 receives a start instruction of a drawing operation from the smartphone 9.

Fig. 5 shows an operation example of the drawing device 1. Receiving a start instruction of the drawing operation from the smartphone 9, the drawing apparatus 1 checks whether the home 100 is in a closed room state. Therefore, in the case of the closed room state, the drawing apparatus 1 performs the pre-scanning SC1, acquires the temperature distribution of the floor material 90, sets the drawing conditions, and performs the image processing on the image data D. After that, based on the image data D subjected to the image processing, the drawing apparatus 1 performs the drawing scan SC2 with the set drawing conditions. Details of this operation are described below.

The communication unit 17 receives a start instruction of the drawing operation from the smartphone 9, whereby the control unit 19 checks whether the house 100 is in the closed room state (step S101). Specifically, for example, in a case where the communication unit 17 has received a notification from the console 101 that the operation mode has been set to the alarm mode M2, the control unit 19 determines that the home 100 is in the closed room state. If house 100 is not in the closed room state (no in step S101), the flow ends.

In step S101, when house 100 is in the closed room state (yes in step S101), drawing device 1 performs pre-scan SC1 (step S102). In the pre-scan SC1, for example, any one of the three laser light sources 21IR of the light source unit 21 emits infrared light LIR whose light intensity is low enough not to perform drawing on the floor material 90, while the temperature distribution detection unit 12 detects a temperature change in the floor material 90 after irradiation with the infrared light LIR at each coordinate of the floor material 90. Further, for example, the laser light source 21V of the light source unit 21 emits visible light LV of a predetermined light intensity, while the light detection unit 23 detects the visible light reflected from each coordinate of the flooring material 90.

When the communication unit 17 receives a notification that the door 102 or the window 103 is opened during the pre-scan SC1, the plotter 1 stops the operation of all the laser light sources in the light source unit 21, and the flow ends.

Fig. 6 shows a state transition of the light source unit 21. In the case where the plotter 1 performs the pre-scan SC1, the state of the light source unit 21 is a light-emitting state. Thereafter, at the end of the pre-scan SC1, the state of the light source unit 21 transitions from the light-emitting state to the light-emission-stopped state. Further, the communication unit 17 receives a notification from the console 101 that the door 102 or the window 103 has been opened, and thereby the control unit 19 determines interruption of the closed room state of the house 100, and the state of the light source unit 21 transitions from the light emitting state to the light emission stop state. Thereafter, the flow in fig. 5 ends. Therefore, in the drawing device 1, in the case where, for example, a user enters the house 100, the possibility that the user is exposed to the laser light can be reduced. Thus, security may be enhanced.

Thereafter, after the pre-scanning SC1 ends, the temperature distribution detecting unit 12 detects the temperature distribution in the thermal equilibrium state of the flooring material 90 (step S103).

Thereafter, the drawing condition setting unit 15 sets the drawing condition of the infrared light LIR in the drawing scan SC2 based on the detection results in steps S102 and S103 (step S104). Specifically, the drawing condition setting unit 15 grasps information on the position of an obstacle such as furniture and surface information such as a protrusion and a depression at each coordinate of the floor material 90 based on the detection result of the light detection unit 23 in the pre-scan SC1 (step S102). Further, the drawing condition setting unit 15 grasps information on the heat dissipation characteristic at each coordinate of the flooring material 90 based on the detection result of the temperature distribution detecting unit 12 in the pre-scan SC1 (step S102). Further, the drawing condition setting unit 15 grasps information on the temperature distribution in the thermal equilibrium state of the floor material 90 based on the detection result of the temperature distribution detecting unit 12 in step S103. Thereafter, the drawing condition setting unit 15 sets the drawing conditions (e.g., scanning area, light intensity, scanning speed, and focal length) of the infrared light LIR in the drawing scan SC2 based on these pieces of information.

For example, the drawing condition setting unit 15 sets the scanning area based on information on the position of an obstacle such as furniture. Therefore, the scanning area in the drawing scan SC2 is set to the same area as that in the pre-scan SC1 or a narrower area among the scanning areas included in the pre-scan SC 1. Further, the drawing condition setting unit 15 sets, for example, the light intensity, the scanning speed, and the focal length of the infrared light LIR at each coordinate of the flooring material 90 based on the surface information, the heat dissipation characteristic, and the temperature distribution in the thermal equilibrium state of the flooring material 90. Specifically, for example, in the case where the floor material 90 easily radiates heat, the drawing condition setting unit 15 increases the light intensity of the infrared light LIR, and in the case where the floor material 90 does not easily radiate heat, decreases the light intensity of the infrared light LIR. For example, in the thermal equilibrium state, when the temperature of the floor material 90 is low, the light intensity of the infrared light LIR increases, and when the temperature of the floor material 90 is high, the light intensity of the infrared light LIR decreases. Instead of increasing the light intensity of the infrared light LIR, the scanning speed may be reduced. Instead of reducing the light intensity of the infrared light LIR, the scanning speed can be increased.

Thereafter, the image processing unit 16 performs predetermined image processing on the image data D stored in the storage unit 30 (step S105). Specifically, the image processing unit 16 performs, for example, a process of enlarging or reducing an image in accordance with the area of the floor material 90, an interpolation process for enhancing the sharpness of the image, and a distortion correction process and other processes for alleviating distortion caused by irradiating the floor material 90.

Thereafter, the drawing device 1 performs the drawing scan SC2 (step S106). In the drawing scan SC2, the three laser light sources 21IR of the light source unit 21 generate the infrared light LIR whose light intensity is in accordance with the pixel value of the image based on the image subjected to the image processing in step S105 using the drawing conditions set in step S104.

In the case where the communication unit 17 receives a notification that the door 102 or the window 103 has been opened while the drawing scan SC2 is in progress, or in the case where the temperature distribution detection unit 12 detects an abnormality in the temperature of the floor material 90, the drawing device 1 stops the operations of all the laser light sources in the light source unit 21, and the flow ends.

Fig. 7 shows a state transition of the light source unit 21. When the plotter 1 performs the plotting scan SC2, the state of the light source unit 21 is the light-emitting state. Thereafter, at the end of the drawing scan SC2, the state of the light source unit 21 transitions from the light emission state to the light emission stop state. Further, in a case where the communication unit 17 receives a notification from the console 101 that the door 102 or the window 103 has been opened, the control unit 19 determines interruption of the closed room state of the house 100, and the state of the light source unit 21 transitions from the light emitting state to the light emission stop state. Thereafter, the flow in fig. 5 ends. In this way, in the drawing device 1, in the case where, for example, a user enters the house 100, the possibility that the user is exposed to laser light can be reduced. Therefore, safety can be improved. Further, in the case where the temperature distribution detection unit 12 detects a temperature abnormality, for example, the temperature of the floor material 90 is higher than a predetermined threshold temperature, the control unit 19 determines that an abnormality has occurred in the drawing operation, and the state of the light source unit 21 is shifted from the light emission state to the light emission stop state. Thereafter, the flow in fig. 5 ends. Therefore, in the drawing device 1, the temperature of the floor material 90 can be suppressed from being higher than a desired temperature. Therefore, safety can be improved.

In this way, the drawing device 1 performs the drawing scan SC 2. Thereafter, when the drawing scan SC2 ends, the image is recorded in the flooring material 90.

Thereafter, the temperature distribution detection unit 12 checks whether the temperature of the floor material 90 is sufficiently low (step S107). Specifically, the temperature distribution detection unit 12 detects the temperature distribution of the floor material 90 to check whether the temperature of the floor material 90 has sufficiently decreased to the extent that the user can endure when entering the house 100. In the case where the temperature of the floor material 90 is still high (no in step S107), the flow returns to step S107 to repeat step S107 until the temperature of the floor material 90 is sufficiently lowered.

In step S107, if the temperature of the floor material 90 is sufficiently low (yes in step S107), the communication unit 17 transmits a notification that the drawing operation has ended to the smartphone 9 based on an instruction from the control unit 19 (step S108). In this way, the user is notified that the drawing on the flooring material 90 has ended.

Thus, the flow ends.

As described, in the drawing apparatus 1, the pre-scan SC1 is performed to set the drawing conditions of the infrared light LIR in the drawing scan SC2 based on the result of the pre-scan SC 1. By using the drawing conditions, the drawing scan SC2 is performed. Therefore, in the drawing device 1, the drawing conditions can be adjusted according to the characteristics inherent in the house 100, for example, how obstacles are arranged, and the surface information and the heat dissipation characteristics of the floor material 90. Therefore, image quality can be improved.

Further, in the drawing device 1, the drawing operation is started in a case where the house 100 is in a closed room state. In the case where the closed room state of the home 100 is interrupted after the drawing operation is started, the drawing operation is stopped. Therefore, in the drawing device 1, for example, the drawing operation is not started when the user is located in the house 100. This makes it possible to reduce the possibility of exposure of the user to the laser light. Further, for example, in a case where the user accidentally enters the house 100 after the drawing operation is started, the drawing operation is stopped. This makes it possible to reduce the possibility of exposure of the user to the laser light. As a result, in the drawing device 1, safety can be improved.

In the drawing apparatus 1, the temperature distribution detection unit 12 monitors the temperature of the floor material 90 in the drawing scan SC 2. This makes it possible to suppress the temperature of the flooring material 90 from increasing more than necessary. Therefore, safety can be improved.

[ Effect ]

As described, in the present embodiment, the pre-scan SC1 is performed to set the drawing conditions of the infrared light in the drawing scan based on the result of the pre-scan SC 1. Therefore, image quality can be improved.

Further, in this embodiment, the drawing operation is started with the house in the closed room state. In the case where the closed room state of the house is interrupted after the drawing operation is started, the drawing operation is stopped. Therefore, safety can be improved.

Further, in this embodiment, in the map scan, the temperature of the flooring material is monitored. Therefore, safety can be improved.

[ modified examples 1-1]

In the foregoing embodiment, the drawing device 1 operates in association with the security system, but this is not limitative. Conversely, for example, in a residence where a security system is not implemented, sensors may be provided at the door 102 and window 103 to detect opening and closing. The sensor may provide the plotting apparatus 1 with the detection result. In this case, the drawing device 1 receives a start instruction of the drawing operation from the smartphone 9, and thus, in a case where the communication unit 17 has received a notification from these sensors that the door 102 and the window 103 are closed, the control unit 19 determines that the home 100 is in the closed room state. Thus, the drawing device 1 starts the drawing operation. Further, for example, in the pre-scan SC1 and the drawing scan SC2, in the case where the communication unit 17 receives a notification from these sensors that the door 102 or the window 103 has been opened, the control unit 19 determines that the closed room state of the home 100 is interrupted. Therefore, the control unit 19 stops the operations of all the laser light sources.

In particular, where the home 100 includes multiple rooms, such sensors may be located at the doors and windows of the room where the drawing is to be made. In this case, when the drawing apparatus 1 performs the drawing operation, the user does not have to go out. The user may remain in a room other than the room in which the drawing is to be made.

Note that in this example, sensors that detect opening and closing are provided at the door 102 and the window 103, but this is not restrictive. Instead, for example, the drawing device may be provided with an imaging unit including, for example, a camera. The opening and closing of doors and windows may be detected based on the captured images.

[ modified examples 1 and 2]

In the foregoing embodiment, the pre-scan SC1 is performed to obtain the heat dissipation characteristics at each coordinate of the flooring material 90, but this is not limitative. Rather, for example, heat dissipation characteristics at one or more representative points of the flooring material 90 may be obtained. In other words, the heat dissipation characteristics can be acquired only at one or more representative points as described above without a significant change in the heat dissipation characteristics according to the coordinates of the floor material 90. Hereinafter, the drawing device 1B according to this modification is described.

Fig. 8 shows an operation example of the drawing device 1B. The drawing device 1B obtains the heat dissipation characteristics at a plurality of representative points. In this example, in step S112 (pre-scan SC1), the laser light source 21V of the light source unit 21 emits visible light LV of a predetermined light intensity, and the light detection unit 23 detects the visible light reflected from each coordinate of the flooring material 90. In other words, in the drawing device 1B, unlike the case of the foregoing embodiment, the irradiation with the infrared light LIR and the detection of the temperature change in the floor material 90 are not performed. Thereafter, after the pre-scanning SC1, the drawing device 1B acquires the heat dissipation characteristics at a plurality of representative points of the flooring material 90 (step S113). Specifically, for example, the light source unit 21 generates infrared light LIR whose light intensity is low enough not to perform drawing on the floor material 90. The light source unit 21 sequentially irradiates a plurality of representative points with the infrared light LIR. The temperature distribution detection unit 12 detects a temperature change in the floor material 90 at each of the plurality of representative points. Thereafter, the drawing condition setting unit 15 obtains the heat dissipation characteristic of the floor material 90 based on the detection result.

[ modified examples 1 to 3]

In the foregoing embodiment, the drawing scan SC2 is performed after the pre-scan SC1 is performed, but this is not limitative. In the case where the image has been recorded in the flooring material 90, the drawing scan SC2 may be performed after the image is once erased. Described below is the drawing device 1C according to this modification.

Fig. 9 shows an operation example of the drawing device 1C. In this example, in step S104, the drawing condition setting unit 15 sets the drawing conditions, and thereafter, the drawing device 1C performs the erasing scan SC3 with the drawing conditions (step S114). In this erasing scan SC3, for example, the three laser light sources 21IR of the light source unit 21 generate infrared light LIR having light intensity sufficient to enable erasing of an image. Thereafter, the image processing unit 16 performs image processing (step S105), and the drawing device 1C performs drawing scanning SC2 (step S106).

[ modified examples 1 to 4]

In the foregoing embodiment, the drawing device 1 performs drawing on the floor material 90, but this is not limitative. In contrast, for example, as in the drawing device 1D shown in fig. 10, drawing may be performed on wallpaper 80 that has been laid on the wall of the house 100D. The wallpaper 80 has a similar construction as the flooring material 90 (fig. 2) of the previous embodiment, for example.

[ other modifications ]

Furthermore, two or more of these modifications may be combined.

<2 > second embodiment

Next, an image drawing device 2 according to a second embodiment is described. This embodiment is different from the foregoing first embodiment in the method of enhancing security. Specifically, in the foregoing first embodiment, the drawing operation is controlled based on whether the house 100 is in the closed room state. Instead, in the present embodiment, the drawing device 2 is provided with a living body detection unit, and controls the drawing operation based on the detection result of the living body detection unit. Note that, substantially the same constituent portions as those of the drawing device 1 according to the foregoing first embodiment are denoted by the same reference numerals, and description thereof is appropriately omitted.

Fig. 11 shows one configuration example of the drawing device 2. The drawing device 2 includes a light irradiation unit 50, a drawing control unit 41, a living body detection unit 42, and a control unit 49.

The light irradiation unit 50 irradiates the floor material 90 with the infrared light LIR, as with the light irradiation unit 20 according to the foregoing first embodiment. Further, the light irradiation unit 50 irradiates the flooring material 90 with the visible light LV while detecting the visible light reflected from the flooring material 90. Further, the light irradiation unit 50 has a function of emitting the guide light LG to display the guide G on the surface of the flooring material 90. The guide G indicates a position irradiated with the infrared light LIR by the light source unit 21.

Fig. 12 shows an example of a guide G to be displayed on the surface of the flooring material 90. In this example, the drawing device 2 performs a scanning operation such that the position irradiated with the infrared light LIR by the light source unit 21 is moved from left to right. Therefore, the irradiated position P is irradiated with the infrared light LIR while the guide G is visually recognizable by the visible light energy so as to surround the irradiated position P. When the irradiated position P moves, the guide G moves along with the irradiated position P. Therefore, the user can easily grasp which position within the flooring material 90 is being irradiated with the infrared light LIR.

The light irradiation unit 50 includes a guide light source 51 and a lens unit 52. The guide light source 51 generates the guide light LG. The guide light source 51 is configured to include, for example, a laser light source 51G that generates visible light. The laser light source 51G is used for, for example, pre-scan SC1 and drawing scan SC 2. The lens unit 52 guides the guide light LG emitted from the guide light source 51 to the floor material 90. The lens unit 52 is configured using, for example, one or more lenses, the focal length of which can be adjusted based on a control signal supplied from the drawing control unit 41.

The drawing control unit 41 controls the operation of the light irradiation unit 50 based on an instruction from the control unit 49. Specifically, as with the drawing control unit 11 according to the foregoing first embodiment, the drawing control unit 41 controls the direction of the optical path axis of the light L to allow the light irradiation unit 50 to irradiate the floor material 90 with the light L while scanning. Further, the drawing control unit 41 controls each light intensity of the infrared light LIR generated by the light source unit 21, controls the light intensity of the visible light LV generated by the light source unit 21, and controls the light intensity of the guide light LG generated by the guide light source 51. Further, the drawing control unit 41 also has a function of adjusting the focal lengths of the

lens units

22, 24, and 52.

The living body detection unit 42 detects living bodies such as a human and an animal in the house 100 based on an instruction from the control unit 49. In this example, the living body detecting unit 42 analyzes the shape indicated by the temperature distribution and the movement of the shape based on the map data of the temperature distribution detected by the temperature distribution detecting unit 12 to detect the presence or absence of a living body based on the analysis result.

The control unit 49 controls the operation of each unit of the drawing device 2.

With this configuration, for example, the user goes out after checking that no one is inside the house 100, and thus, the living body detection unit 42 detects that no living body is present inside the house 100. Thereafter, the user operates the smartphone 9 outside the home 100 to give a start instruction of the drawing operation in the drawing device 2, whereby, in the drawing device 2, the communication unit 17 receives the start instruction, and the control unit 49 starts the drawing operation. During the drawing operation, in a case where the living body detection unit 42 detects a living body in the house 100, the control unit 49 stops the drawing operation. Thereafter, the drawing device 2 performs the pre-scan SC1 and the drawing scan SC2, and ends the drawing operation, and thereby the communication unit 17 notifies the smartphone 9 that the drawing operation has ended, based on an instruction from the control unit 49.

Fig. 13 shows an operation example of the drawing device 2. Receiving a start instruction of the drawing operation from the smartphone 9, the drawing device 2 checks the presence or absence of a living body in the house 100. Therefore, when a living body is not detected in the house 100, the drawing device 2 performs the pre-scan SC1, acquires the temperature distribution of the floor material 90, sets the drawing conditions, and performs the image processing on the image data D. After that, based on the image data D subjected to the image processing, the drawing device 2 performs a drawing scan SC2 with the set drawing conditions. Hereinafter, a detailed description of the operation is given.

The communication unit 17 receives a start instruction of the drawing operation from the smartphone 9, and thereby the living body detection unit 42 checks the presence or absence of a living body in the house 100 (step S201). When a living body is detected in house 100 (no in step S201), the flow ends.

In step S201, when a living body is not detected in the house 100 (yes in step S201), the plotter 2 performs the pre-scan SC1 (step S202), as in the plotter 1 of the first embodiment described above.

If the living body detection unit 42 detects a living body in the house 100 during the pre-scan SC1, the plotter 2 stops the operation of all the laser light sources in the guidance light source 51 and the light source unit 21, and the flow ends as shown in fig. 14.

Thereafter, as in the condition of the foregoing first embodiment, after the pre-scanning SC1 ends, the temperature distribution detecting unit 12 detects the temperature distribution in the thermal equilibrium state of the flooring material 90 (step S203). The drawing condition setting unit 15 sets the drawing condition of the infrared light LIR in the drawing scan SC2 based on the detection results in steps S202 and S203 (step S204). The image processing unit 16 performs predetermined image processing on the image data D stored in the storage unit 30 (step S205).

Thereafter, the drawing device 2 performs the drawing scan SC2 as with the drawing device 1 according to the foregoing first embodiment (step S206).

During the execution of the drawing scan SC2, when the living body detection unit 42 detects a living body in the house 100 or when the temperature distribution detection unit 12 detects an abnormality in the temperature of the floor material 90, the drawing device 2 stops the operation of all the laser light sources in the guidance light source 51 and the light source unit 21, and the flow ends as shown in fig. 15.

When the drawing scan SC2 ends, the image is recorded in the flooring material 90.

Thereafter, as in the case of the foregoing first embodiment, the temperature distribution detection unit 12 checks whether the temperature of the floor material 90 is sufficiently low (step S207). After the temperature of the floor material 90 is sufficiently lowered, the communication unit 17 sends a notification that the drawing operation has ended to the smartphone 9 based on an instruction from the control unit 49 (step S208).

Thus, the flow ends.

As described above, the drawing device 2 is provided with the living body detection unit 42. When it is detected that no living body is present inside the house 100, the drawing operation is started. When a living body is detected in the house 100 after the drawing operation is started, the drawing operation is stopped. Therefore, in the drawing device 2, for example, the drawing operation is not started when the user is in the house 100. This makes it possible to reduce the possibility of exposure of the user to the laser light. Further, for example, in the case where the user accidentally enters the house 100 after the drawing operation is started, the drawing operation is stopped. This makes it possible to reduce the possibility of exposure of the user to the laser light. As a result, in the drawing device 2, safety can be improved.

As described above, in this embodiment, the drawing operation is started in the case where it is detected that there is no living body inside the house. When a living body is detected in the house after the drawing operation is started, the drawing operation is stopped. Therefore, safety can be improved. Other effects are similar to those in the case of the foregoing first embodiment.

[ modification 2-1]

In the above-described embodiment, the user operates the smartphone 9 outside the home 100 to give the start instruction of the drawing operation in the drawing device 2, but this is not limitative. For example, in a case where the house 100 has a plurality of rooms, the user may close the doors and windows of the room to be drawn, and operate the smartphone 9 in a room other than the room to be drawn to give a start instruction of the drawing operation in the drawing device 2.

[ modified examples 2-2]

In the foregoing embodiment, as shown in fig. 12, the guide G is displayed so as to surround the position P irradiated with the infrared light LIR, but this is not limitative. For example, in the case where drawing is performed only on a partial area of the flooring material 90, the guide G may be displayed to surround the relevant area. Further, the shape itself of the character or drawing to be drawn may be displayed as the guide G.

[ modified examples 2 to 3]

In the foregoing embodiment, the living body detecting unit 42 detects the presence or absence of a living body based on the map data of the temperature distribution, but this is not limitative. Alternatively, for example, the drawing device may be provided with an imaging unit including, for example, a camera. The living body detecting unit may detect the presence or absence of a living body based on the captured image.

[ other modifications ]

Each of the modifications of the foregoing first embodiment can be applied to the drawing device 2 according to the foregoing embodiment.

<3. third embodiment >

Next, an image drawing device 3 according to a third embodiment is described. In the first and second embodiments described above, a configuration is provided in which the drawing device provided on the ceiling of the house 100 draws on the floor material 90. Meanwhile, in this embodiment, a configuration is provided in which a drawing device that travels on the floor material 90 by itself draws on the floor material 90. It should be noted that substantially the same components as those of the drawing devices 1 and 2 according to the foregoing first and second embodiments are denoted by the same reference symbols, and description thereof is appropriately omitted.

Fig. 16 shows an example of a house 110 in which the drawing device 3 is used. The drawing device 3 draws on the floor material 90 laid on the floor of the house 110. In this example, the drawing device 3 draws on the floor material 90 while the drawing device 3 itself moves on the floor material 90.

Fig. 17 shows one configuration example of the drawing device 3. The drawing device 3 includes a wheel unit 62, a wheel driving unit 63, a light irradiation unit 70, a drawing control unit 61, a temperature detection unit 64, a temperature distribution detection unit 65, an inclination sensor 66, and a control unit 69.

The wheel unit 62 is configured to include, for example, one or more wheels provided on, for example, the bottom surface of the drawing device 3, and move the drawing device 3 by rotating the one or more wheels based on the driving force supplied from the wheel driving unit 63.

The wheel driving unit 63 is configured using, for example, an electric motor, and drives the wheel unit 62 based on an instruction from the drawing control unit 61. Specifically, for example, as shown in fig. 18, the wheel driving unit 63 drives the wheel unit 62 to allow the light irradiation unit 70 to irradiate the floor material 90 with the light L while scanning.

The light irradiation unit 70 irradiates the floor material 90 with the infrared light LIR, as with the light irradiation unit 20 according to the foregoing first embodiment. Further, the light irradiation unit 70 also has a function of irradiating the floor material 90 with the visible light VL while detecting the visible light reflected from the floor material 90. The light irradiation unit 70 is disposed on the bottom surface of the drawing device. Therefore, the drawing device 3 is moved by the wheel unit 62 to allow the light irradiation unit 70 to irradiate the floor material 90 with the light L at the time of scanning.

The drawing control unit 61 controls the operations of the light irradiation unit 70 and the wheel driving unit 63 based on instructions from the control unit 69. Specifically, the drawing control unit 61 controls the operation of the wheel driving unit 63 to allow the light irradiation unit 70 to irradiate the floor material 90 with the light L at the time of scanning. Further, the drawing control unit 61 controls each light intensity of the infrared light LIR generated by the three laser light sources 21IR included in the light source unit 21, while controlling the light intensity of the visible light LV generated by the laser light source 21V. Further, the drawing control unit 61 also has a function of adjusting the focal lengths of the

lens units

22 and 24.

The temperature detection unit 64 is provided on the bottom surface of the drawing device 3, and detects the temperature of the floor material 90 below the drawing device 3.

The temperature distribution detection unit 65 detects the temperature distribution in the floor material 90. The temperature distribution detection unit 65 is configured by a plurality of infrared sensors provided on, for example, the side surface around the drawing device 3. Therefore, the temperature distribution detection unit 65 can detect the temperature distribution of the floor material 90 in a wide range around the drawing device 3.

The tilt sensor 66 detects the tilt of the drawing device 3. Specifically, the inclination sensor 66 detects the inclination of the drawing device 3 in a case where, for example, the user lifts up the drawing device 3 to cause the drawing device 3 to incline.

With this configuration, for example, the user operates the smartphone 9 in the room of the home 100 or outside the home 100 to give a start instruction of the drawing operation in the drawing device 3, and thereby, in the drawing device 3, the communication unit 17 receives the start instruction, and the control unit 69 starts the drawing operation. During the drawing operation, in a case where the tilt sensor 66 detects the tilt of the drawing device 3, the control unit 69 stops the drawing operation. Thereafter, the drawing device 3 performs the pre-scan SC1 and the drawing scan SC2, and ends the drawing operation, and thereby the communication unit 17 notifies the smartphone 9 that the drawing operation has ended, based on an instruction from the control unit 69.

Fig. 19 shows an operation example of the drawing device 3. Receiving a start instruction of the drawing operation from the smartphone 9, the drawing device 3 checks the tilt of the drawing device 3. Therefore, when the drawing device 3 is not tilted, the drawing device 3 performs the pre-scan SC1, acquires the temperature distribution of the floor material 90, sets the drawing conditions, and performs the image processing on the image data D. After that, based on the image data D subjected to the image processing, the drawing apparatus 3 performs the drawing scan SC2 with the set drawing conditions. Details of this operation are described below.

The communication unit 17 receives a start instruction of the drawing operation from the smartphone 9, and thereby, the tilt sensor 66 checks the tilt of the drawing device 3 (step S301). When the drawing device 3 is tilted (no in step S301), the flow ends.

In step S301, if the drawing device 3 is not tilted (yes in step S301), the drawing device 3 performs the pre-scan SC1 (step S302). In the pre-scan SC1, for example, any one of the three laser light sources 21IR of the light source unit 21 emits infrared light LIR whose light intensity is low enough not to perform drawing on the floor material 90, and the temperature detection unit 64 detects a temperature change in the floor material 90 after irradiation with the infrared light LIR at each coordinate of the floor material 90. Further, for example, the laser light source 21V of the light source unit 21 emits visible light LV of a predetermined light intensity, and the light detection unit 23 detects the visible light reflected from each coordinate of the flooring material 90.

In the case where the tilt sensor 66 detects the tilt of the drawing device 3 during the execution of the pre-scan SC1, the drawing device 3 stops the operations of all the laser light sources in the light source unit 21, as shown in fig. 20, and the flow ends.

Thereafter, as in the case of the foregoing first embodiment, after the pre-scanning SC1 ends, the temperature distribution detecting unit 65 detects the temperature distribution in the thermal equilibrium state of the flooring material 90 (step S303). The drawing condition setting unit 15 sets the drawing condition of the infrared light LIR in the drawing scan SC2 based on the detection results in steps S302 and S303 (step S304). The image processing unit 16 performs predetermined image processing on the image data D stored in the storage unit 30 (step S305).

Thereafter, the drawing device 2 performs the drawing scan SC2 as with the drawing device 1 according to the foregoing first embodiment (step S306).

In the case where the inclination sensor 66 detects the inclination of the drawing device 3 or the temperature detection unit 64 or the temperature distribution detection unit 65 detects the temperature abnormality of the floor material 90 during the execution of the drawing scan SC2, the drawing device 3 stops the operations of all the laser light sources in the light source unit 21, as shown in fig. 21, and the flow ends.

Thereafter, as in the case of the foregoing first embodiment, the temperature distribution detecting unit 65 checks whether the temperature of the floor material 90 is sufficiently low (step S307). After the temperature of the floor material 90 is sufficiently lowered, the communication unit 17 transmits a notification of the end of the drawing operation to the smartphone 9 based on an instruction from the control unit 69 (step S308).

Thus, the flow ends.

As described above, in the drawing device 3, the floor material 90 is drawn while the floor material 90 travels by itself. Therefore, the laser light emitted from the drawing device 3 immediately reaches the floor material 90. Therefore, even in the case where the user is located in the room of the house 110, the possibility that the user is exposed to the laser light can be reduced. As a result, in the drawing device 3, safety can be enhanced.

Further, in the drawing device 3, a tilt sensor 66 is provided to allow the tilt sensor 66 to detect the tilt of the drawing device 3. This makes it possible to reduce the possibility of the user being exposed to the laser light, for example, in the case where the user accidentally lifts up the drawing device 3. Therefore, safety can be improved.

As described above, in this embodiment, the drawing device draws on the flooring material while traveling on the flooring material by itself. Therefore, even in the case where the user is located in a room of a house, the safety can be improved.

In this embodiment, the tilt sensor detects the tilt of the drawing device. Therefore, safety can be improved.

Other effects are similar to those in the case of the foregoing first embodiment.

[ modification 3-1]

In the foregoing embodiment, the pre-scan SC1 is performed to obtain the heat dissipation characteristics at each coordinate of the flooring material 90, but this is not limitative. Alternatively, for example, the heat dissipation characteristics at one or more representative points may be obtained, as in the foregoing modifications 1-2 of the first embodiment.

[ modification 3-2]

In the foregoing embodiment, the drawing scan SC2 is performed after the pre-scan SC1 is performed, but this is not limitative. Alternatively, for example, in the case where some images have been recorded in the flooring material 90, the drawing scan SC2 may be performed after the images are once erased, as in the foregoing modifications 1 to 3 of the first embodiment.

[ modified examples 3 to 3]

In the foregoing embodiment, the drawing device 3 draws on the floor material 90 while traveling on the floor material 90 by itself, but this is not limitative. Alternatively, for example, as shown in fig. 22, the drawing device 3C may perform drawing on the wallpaper 80 while moving on the surface of the wallpaper 80 that has been laid on the wall of the house 110C. For example, the drawing device 3C includes a suction unit that sucks the wallpaper 80 in place of the wheel unit 62. The drawing device 3C sucks the wallpaper 80 with the suction unit, and draws on the wallpaper 80 while moving on the surface of the wallpaper 80.

[ other modifications ]

Furthermore, two or more of these modifications may be combined.

Although the description has been given by giving the embodiments and the modifications described above and the specific application examples thereof, the contents of the present technology are not limited to the above-described example embodiments and may be modified in various ways.

For example, in the foregoing example embodiment, the lens unit 22 and other units adjust the focal length based on instructions from the drawing control unit 11, but this is not limitative. Instead, for example, the function of adjusting the focal length may be eliminated. Specifically, for example, in the case where the definition of an image to be drawn on the floor material 90 is low, since the infrared light LIR is laser light, omitting the function of adjusting the focal length makes it possible to simplify the apparatus configuration.

Further, for example, in the foregoing example embodiment, the drawing device performs the scanning operation using the infrared light LIR of the point profile, but this is not limitative. Alternatively, for example, as shown in fig. 23, the scanning operation may be performed using infrared light LIR of a linear profile.

Further, for example, in the foregoing example embodiment, drawing is performed on the floor material 90 and the wallpaper 80, but this is not limitative. Drawing may be performed on various objects. In particular, the technique may be used in applications where drawing is to be performed on large objects or objects that are difficult to move.

It should be noted that the effects described in this specification are merely examples and are not restrictive, and other effects may exist.

Note that this technique may have the following configuration.

(1) A drawing device comprising:

an irradiation unit that irradiates a first recording area of a recording object with first light in which an image is visually identifiably recorded with predetermined light energy in a first period, and irradiates a second recording area, which is the same as or included in the first recording area, with second light as the predetermined light in a second period after the first period; and

a control unit controlling an operation of the irradiation unit.

(2) The drawing device according to (1), wherein,

the irradiation unit performs irradiation with the first light while performing a first scan on a first recording area of the recording object, and performs irradiation with the second light while performing a second scan on a second recording area of the recording object.

(3) The drawing device according to (2), further comprising a condition setting unit that sets an irradiation condition of the irradiation with the second light based on a scanning result of the first scanning.

(4) The drawing device according to (3), further comprising a light detection unit that detects reflected light from the recording object irradiated with the first light,

wherein the condition setting unit sets the irradiation condition based on the reflected light.

(5) The drawing device according to (3) or (4), further comprising a temperature detection unit for detecting a temperature of the recording object,

wherein the condition setting unit sets the irradiation condition based on a temperature change of the recording object subjected to the first scan.

(6) The drawing device according to any one of (2) to (5), further comprising:

a temperature detection unit that detects a temperature of the recording object; and

a condition setting unit that sets an irradiation condition for irradiation with the second light based on the temperature distribution of the recording object.

(7) The drawing device according to any one of (3) to (6), wherein the irradiation condition includes at least one condition of the second recording area, an irradiation intensity of the second light, a scanning speed of the second scanning, and a focal length when irradiation is performed with the second light.

(8) The drawing device according to any one of (2) to (7), wherein the control unit controls an operation of the irradiation unit to cause an image indicated by image data to be drawn in a second recording area of the recording object in the second period.

(9) The drawing device according to (8), further comprising an image processing unit that performs image processing on the image data based on a scanning result of the first scanning.

(10) The drawing device according to (9), wherein the image processing includes at least one condition of an enlargement processing, a reduction processing, an interpolation processing, and a distortion correction processing.

(11) The drawing device according to any one of (2) to (10), wherein the control unit allows the irradiation unit to perform the first scan and the second scan by changing a direction in which light is irradiated in the irradiation unit.

(12) The drawing device according to any one of (2) to (10), further comprising a moving mechanism that moves the drawing device itself on the recording object,

wherein the control unit allows the irradiation unit to perform the first scan and the second scan by controlling the operation of the moving mechanism.

(13) The mapping device of (12), wherein the movement mechanism includes one or more wheels.

(14) The drawing device according to any one of (1) to (13), wherein the recording object is provided inside a house, and

the control unit starts operation of the irradiation unit if a predetermined condition is satisfied, the predetermined condition including a door provided at the entrance of the house being closed.

(15) The drawing device according to any one of (1) to (13), wherein the recording object is provided inside a room, and

the control unit starts operation of the irradiation unit if a predetermined condition is satisfied, the predetermined condition including a door provided at an entrance of the room being closed.

(16) The drawing device according to any one of (1) to (13), further comprising a living body detection unit that performs living body detection in the vicinity of the recording object,

wherein the control unit starts the operation of the irradiation unit if a predetermined condition is satisfied, the predetermined condition including that the living body detection unit detects that a living body is not present.

(17) The drawing device according to (1) to (10), further comprising:

a moving mechanism that moves the drawing device itself; and

an inclination detection unit that detects an inclination of the drawing device,

wherein the control unit starts the operation of the irradiation unit if a predetermined condition is satisfied, the predetermined condition including that the tilt detection unit detects that a tilt is not present.

(18) The drawing device according to any one of (14) to (17), wherein the control unit stops the operation of the irradiation unit in a case where the predetermined condition becomes unsatisfied after the operation of the irradiation unit is started.

(19) The drawing device according to any one of (1) to (18), wherein the predetermined light is infrared light.

(20) The drawing device according to any one of (1) to (19), wherein the recording object includes a recording layer including a dye that is reversibly convertible between a colored state and a faded state.

(21) The drawing device according to (20), wherein the dye is a leuco dye.

(22) A method of mapping, comprising:

allowing the irradiation unit to irradiate a first recording area of the recording object with first light in a first period in which an image is visually identifiably recorded with predetermined light energy; and

allowing the irradiation unit to irradiate a second recording area, which is the same as or included in the first recording area, with second light serving as the predetermined light in a second period after the first period.

This application claims the benefit of japanese prior patent application JP2016-222222, filed on 2016,

month

11 and 15 to the present patent office, the entire contents of which are incorporated herein by reference.

It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and alterations may be made according to design requirements and other factors insofar as they are within the scope of the appended claims or the equivalents thereof.

Claims

1. A drawing device comprising:

an irradiation unit that irradiates, in a first period, a first recording area of a recording object in which an image is recorded so as to be visually recognizable with a predetermined light with a first light, and irradiates, in a second period subsequent to the first period, a second recording area, which is the same as or included in the first recording area, with a second light that is the predetermined light, wherein the irradiation unit irradiates with the first light when a first scan is performed on the first recording area of the recording object, and irradiates with the second light when a second scan is performed on the second recording area of the recording object;

a control unit that controls an operation of the irradiation unit; and

an image processing unit that performs image processing on the image data based on a scanning result of the first scanning.

2. The drawing device according to claim 1, further comprising: a condition setting unit that sets an irradiation condition when irradiated with the second light, based on a scanning result of the first scanning.

3. The drawing device according to claim 2, further comprising: a light detection unit that detects reflected light from the recording object irradiated with the first light,

4. The drawing device according to claim 2, further comprising: a temperature detection unit that detects a temperature of the recording object,

wherein the condition setting unit sets the irradiation condition based on a temperature change of the recording object subjected to the first scanning.

5. The drawing device according to claim 1, further comprising:

a condition setting unit that sets an irradiation condition when the second light is irradiated based on the temperature distribution of the recording object.

6. The drawing device according to claim 2 wherein the illumination condition comprises at least one of: the second recording area, the irradiation intensity of the second light, the scanning speed of the second scanning, and the focal length when irradiated with the second light.

7. The drawing device according to claim 1, wherein the control unit controls an operation of the irradiation unit so that an image represented by image data is drawn in the second recording area of the recording object during the second period.

8. The drawing device according to claim 1, wherein the image processing includes at least one condition of: enlargement processing, reduction processing, interpolation processing, and distortion correction processing.

9. The drawing device according to claim 1, wherein the control unit causes the irradiation unit to perform the first scanning and the second scanning by changing a direction of light irradiation in the irradiation unit.

10. The drawing device according to claim 1, further comprising: a moving mechanism that moves the drawing device itself on the recording object,

wherein the control unit causes the irradiation unit to perform the first scanning and the second scanning by controlling an operation of the moving mechanism.

11. The drawing device of claim 10 wherein the movement mechanism comprises one or more wheels.

12. The drawing device according to claim 1, wherein the recording object is provided inside a house, and

the control unit starts the operation of the irradiation unit in a case where a predetermined condition is satisfied, the predetermined condition including that a door provided at an entrance of the house is closed.

13. The drawing device according to claim 1, wherein the recording object is provided inside a room, and

the control unit starts the operation of the irradiation unit in a case where a predetermined condition is satisfied, the predetermined condition including that a door provided at an entrance of the room is closed.

14. The drawing device according to claim 1, further comprising: a living body detection unit that performs living body detection in the vicinity of the recording object,

wherein the control unit starts the operation of the irradiation unit in a case where a predetermined condition is satisfied, the predetermined condition including that the living body detection unit does not detect a living body.

15. The drawing device according to claim 1, further comprising:

a moving mechanism that moves the drawing device itself; and

a tilt detection unit that detects a tilt of the drawing device,

wherein the control unit starts the operation of the irradiation unit in a case where a predetermined condition is satisfied, the predetermined condition including that the tilt detection unit does not detect the tilt.

16. The drawing device according to claim 12, wherein the control unit stops the operation of the irradiation unit in a case where the predetermined condition becomes unsatisfied after the operation of the irradiation unit is started.

17. The drawing device according to claim 1 wherein the predetermined light is infrared light.

18. The drawing device according to claim 1, wherein the recording object includes a recording layer including a dye that is reversibly convertible between a colored state and a faded state.

19. The drawing device according to claim 18 wherein the dye is a leuco dye.

20. A method of mapping, comprising:

causing an irradiation unit to irradiate a first recording area of a recording object, in which an image is recorded with predetermined optical energy visually recognizable, with first light during a first period;

causing the irradiation unit to irradiate a second recording area with second light as the predetermined light at a second period subsequent to the first period, the second recording area being the same as or included in the first recording area, wherein the irradiation unit irradiates with the first light when performing a first scan on the first recording area of the recording object and irradiates with the second light when performing a second scan on the second recording area of the recording object; and

causing an image processing unit to perform image processing on the image data based on a scanning result of the first scanning.