CN115031710A - Line casting device and line casting method thereof - Google Patents
Line casting device and line casting method thereof Download PDFInfo
- Publication number
- CN115031710A CN115031710A CN202210814030.0A CN202210814030A CN115031710A CN 115031710 A CN115031710 A CN 115031710A CN 202210814030 A CN202210814030 A CN 202210814030A CN 115031710 A CN115031710 A CN 115031710A
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- line
- control system
- projection light
- positioning
- light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention discloses a line casting device and a line casting method thereof, wherein the line casting device comprises a line casting instrument for emitting projection light and a positioning device for positioning the projection light; the line projector can drive the projection light to rotate, the line projector is provided with a line projector control system, and the positioning device is provided with a positioning control system which is in communication connection with the line projector control system; the positioning control system is used for receiving projection light and sending a control command to the demarcation device control system, and the demarcation device control system is used for receiving the control command and adjusting the rotation of the demarcation device so that the projection light is projected to a preset position. According to the line casting device provided by the invention, the line casting instrument can be quickly and conveniently adjusted through the matching of the line casting instrument and the positioning device, so that the projected light rotates to the preset position, the operation is simple and convenient, the labor intensity is low, and the construction efficiency is effectively improved.
Description
Technical Field
The invention relates to the technical field of line projectors, in particular to a line projecting device for a line projector and a line projecting method thereof.
Background
The line projection device is a non-contact type line marking measuring instrument, is widely applied to constructional engineering, and mainly utilizes the line projection device to accurately project projection light on a target object so as to play a role in assisting and positioning the line marking.
The existing line throwing device mainly depends on a manual regulation line throwing instrument main body in the using process, projection light is projected to a required position, the regulation mode is relatively complex to operate, the labor intensity of constructors is increased, the time spent is relatively long, and the construction efficiency is reduced.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a line casting device, which can adjust the position of projected light quickly and conveniently, and has the advantages of simple operation, low labor intensity and high construction efficiency.
One aspect of the present invention provides a line projector, comprising a line projector for emitting projection light, and a positioning device for positioning the projection light;
the line projector can drive the projection light to rotate, the line projector is provided with a line projector control system, and the positioning device is provided with a positioning control system which is in communication connection with the line projector control system;
the positioning control system is used for receiving the projection light and sending a control command to the demarcation device control system;
the line projector control system is used for receiving the control command and adjusting the line projector to rotate so as to project the projection light to a preset position.
Preferably, the positioning control system includes:
the light sensing module is used for receiving projection light of the line projector and converting the projection light into an electric signal;
the input module is used for inputting a first control instruction;
the first communication module is used for establishing communication connection with the demarcation device control system;
the first processing module is electrically connected with the light sensing module, the input module and the first communication module; the first communication module is used for receiving the first control instruction and the electric signal and sending a second control instruction for controlling the rotation of the line projector to the line projector control system.
Preferably, the positioning control system further comprises a display module electrically connected to the first processing module, and configured to display status information.
Preferably, the demarcation device includes the demarcation device body, and is used for driving the rotatory rotary mechanism of demarcation device body, the demarcation device control system includes:
the second communication module is used for establishing communication connection with the positioning control system;
the second processing module is connected with the second communication module and the rotating mechanism;
and the second processing module receives a control command from the positioning control system through the second communication module and sends an action command to the rotating mechanism.
Preferably, the rotating mechanism includes:
the movable piece is connected with the demarcation device body;
the fixed piece is connected with the movable piece;
and the driving mechanism is connected with the movable piece and the fixed piece and is used for driving the movable piece to rotate relative to the fixed piece.
When the line casting device is used, the positioning device is firstly arranged at the position to be cast with a line, the line casting instrument is started, and the line casting instrument emits projection light; sending control instructions, such as left turning, right turning, up turning and down turning, to the demarcation device through the positioning control system according to the relative position between the projection light and the positioning device; the line projector receives the control instruction through a line projector control system and adjusts the line projector to rotate until the projected light is projected to a preset position; and at the moment, the positioning control system receives the projection light and sends a control command to the demarcation device again, the demarcation device receives the control command through the demarcation device control system and adjusts the demarcation device to stop rotating, and the demarcation is finished.
Therefore, the line projector provided by the invention can be quickly and conveniently adjusted through the matching of the line projector and the positioning device, so that the projected light can rotate to the preset position, the operation is simple and convenient, the labor intensity is low, and the construction efficiency is effectively improved.
The invention also provides a line casting method of the line casting device, which is applied to the positioning device and comprises the following steps:
establishing communication connection with a line projector;
sending a first control instruction to the line projector to control the projection light to rotate;
judging whether projection light is received;
if so, converting the received projection light into an electric signal, and sending a second control instruction to the demarcation device to control the projection light to stop rotating.
The invention also provides a line casting method of the line casting device, which is applied to a line casting instrument and comprises the following steps:
establishing communication connection with a positioning device;
receiving a first control instruction sent by the positioning device, and controlling the projection light to rotate;
after the positioning device receives the projection light, sending a second control instruction to the demarcation device;
and receiving a second control command sent by the positioning device, and controlling the projection light to stop rotating.
Preferably, the line projection method further comprises giving a prompt to the operator after the projected light stops rotating.
Preferably, the line-casting method further comprises sending a successful connection prompt to an operator when the line-casting instrument establishes a communication connection with the positioning device.
Preferably, the first control instruction includes at least one of:
a left turn command for controlling the projected light to turn to the left;
a right turn command for controlling the projected light to turn to the right;
an upper rotation instruction for controlling the projection light to rotate upwards;
and a down rotation command for controlling the projection light to rotate downwards.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of a lining device according to the present invention;
FIG. 2 is a block diagram of a lining apparatus according to the present invention;
FIG. 3 is a partial cross-sectional view of a positioning device of the lining device according to the invention;
FIG. 4 is a schematic perspective view of a rotary mechanism of the present invention;
FIG. 5 is a flow chart of a routing method of the routing device of the present invention;
fig. 6 is a flowchart of a routing method of a routing device according to another embodiment of the present invention.
Reference numerals
1-a line casting device; 2-a line projector; 11-a light sensing module; 12-an input module; 13-a first communication module; 14-a first processing module; 15-a display module; 21-the line projector body; 22-a rotation mechanism; 23-a second communication module; 24-a second processing module; 220-a fixture; 221-a movable part; 222-a drive mechanism.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It is to be understood that the terms "central," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the illustrated orientation or positional relationship, or the orientation or positional relationship in which the article of manufacture is conventionally used, merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the apparatus or component in question must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the present embodiment provides a line projector including a line projector 2 for emitting projection light, and a positioning device 1 for positioning the projection light.
The line projector 2 can drive projection light to rotate, the line projector 2 is provided with a line projector control system, and the positioning device 1 is provided with a positioning control system which is in communication connection with the line projector control system.
The positioning control system is used for receiving the projection light and sending a control command to the demarcation device control system.
The line projector control system is used for receiving a control command and adjusting the line projector 2 to rotate so as to project projection light to a preset position.
The working principle of the embodiment is as follows:
when the device is used, the positioning device 1 is placed at a position to be subjected to line casting, the line casting instrument 2 is started, and the line casting instrument 2 emits projection light; sending control instructions, such as left turning, right turning, upper turning and lower turning, to the demarcation device 2 through the positioning control system according to the relative position between the projection light and the positioning device 1; the line projector 2 receives a control instruction through a line projector control system and adjusts the line projector 2 to rotate until projected light is projected to a preset position; at this moment, the positioning control system receives the projection light and sends a control instruction to the line projector 2 again, the line projector 2 receives the control instruction through the line projector control system and adjusts the line projector 2 to stop rotating, and the line projection is finished.
Therefore, the line projector provided by the invention can be quickly and conveniently adjusted through the matching of the line projector and the positioning device, so that projected light can rotate to a preset position, the operation is simple and convenient, the labor intensity is low, and the construction efficiency is effectively improved.
The positioning control system may include a light sensing module 11, an input module 12, a first communication module 13, and a first processing module 14.
The light sensing module 11 is used for receiving the projection light of the line projector 2 and converting the projection light into an electric signal. The light sensing module 11 may be a photoelectric sensor or a photosensor, and is a device that converts a light signal into an electric signal.
The input module 12 is used for inputting a first control instruction. The input module 12 may be at least one of a key input module and a voice control input module, and may also adopt other manners, such as gesture control and the like.
The first communication module 13 is used for establishing communication connection with the control system of the line projector. The first communication module 13 may be a bluetooth module, a wifi module, or other wireless communication module, or a wired transmission interface, so as to establish a communication connection with the control system of the line projector to transmit various commands.
The first processing module 14 is electrically connected with the light sensing module 11, the input module 12 and the first communication module 13; the first communication module 13 is used for receiving the first control instruction and the electric signal and sending a second control instruction for controlling the rotation of the line projector 2 to the line projector control system. The first processing module 14 can be a single chip microcomputer or other microprocessors, such as an ESP32MCU currently purchased on the market, an ESP32 integrates 2.4GHz Wi-Fi and bluetooth dual modes, and adopts a 40 nm technology with ultra-low power consumption of a station power storage (TSMC), so that the system has ultra-high radio frequency performance, stability, universality and reliability, and ultra-low power consumption, meets different power consumption requirements, and is suitable for various application scenarios of the internet of things. ESP32 has abundant resources, and integrates peripheral interfaces such as CPU, memory (Flash and RAM), counter, GPIO, SPI, A/D conversion, UART, CAN, I2C, I2F and even LCD drive circuit on a single chip, integrates WIFI/Bluetooth, and supports OTA upgrade.
The lining appearance 2 comprises a lining appearance body 21 and a rotating mechanism 22 used for driving the lining appearance body 21 to rotate, and the lining appearance control system comprises a second communication module 23 and a second processing module 24.
Wherein, the rotating mechanism 22 may include a movable member 221, a fixed member 220 and a driving mechanism 222.
The movable piece 221 is connected with the demarcation device body 21, the movable piece 221 can be a connecting frame matched with the bottom of the demarcation device body 21, and the demarcation device body 21 can be fixedly connected with the movable piece 221 in a bolt or clamping mode.
The fixed member 220 is connected to the movable member 221, and the fixed member 220 mainly plays a supporting role and is used for supporting the main body 21 of the demarcation device on the ground or other working platforms.
The driving mechanism 222 connects the movable member 221 and the fixed member 220, and is configured to drive the movable member 221 to rotate relative to the fixed member 220.
Wherein, the driving mechanism 222 may include a horizontal rotating mechanism for driving the lining machine body 21 to rotate in the horizontal direction, and a vertical rotating mechanism for driving the lining machine body 21 to rotate in the vertical direction.
Specifically, the driving mechanism 222 may be a gear driving mechanism, or other mechanisms capable of driving the line-casting instrument body 21 to rotate, which is well known in the art and will not be described herein.
The second communication module 23 is configured to establish a communication connection with the positioning control system. The second communication module 23 may be a bluetooth module, a wifi module, or other wireless communication module, or a wired transmission interface to establish a communication connection with the positioning control system for transmitting various commands.
The second processing module 24 is connected to the second communication module 23 and the rotation mechanism 22, and the second processing module 24 receives a control command from the positioning control system through the second communication module 23 and transmits an operation command to the rotation mechanism 22. The second processing module 24 may be a single chip or other microprocessor, for example, an existing ESP32MCU on the market is directly purchased, an ESP32 integrates a 2.4GHz Wi-Fi and bluetooth dual mode, and a 40 nm process with ultra-low power consumption of a station power station (TSMC) is adopted, so that the system has ultra-high radio frequency performance, stability, universality and reliability, and ultra-low power consumption, meets different power consumption requirements, and is suitable for various application scenarios of the internet of things. ESP32 has abundant resources, and it integrates CPU, memory (Flash and RAM), counter, GPIO, SPI, A/D conversion, UART, CAN, I2C, I2F and other peripheral interfaces, even LCD drive circuit on a single chip, integrates WIFI/Bluetooth, and supports OTA upgrade.
The positioning control system further includes a display module 15 electrically connected to the first processing module 14 for displaying status information. The status information may include on/off information of the first communication module 13 and sensing information of the light sensing module 11. The display module 15 may directly adopt a liquid crystal display screen existing in the market.
As shown in fig. 5, the present invention further provides a line-casting method of a line-casting device, which is applied to a positioning device, and the line-casting method includes:
step S110: establishing communication connection with the demarcation device 2;
step S120: sending a first control instruction to the projector 2 to control the projection light to rotate;
step S130: judging whether projection light is received;
step S140: if yes, the received projection light is converted into an electric signal, and a second control instruction is sent to the demarcation device 2 to control the projection light to stop rotating.
The positioning device 1 is mainly used for positioning the projection light, and a light sensing module 11 for sensing the projection light can be arranged on the positioning device 1. When the projection light rotates to contact with the light sensing module 11, the light sensing module 11 senses the light and converts the projection light into an electrical signal.
As shown in fig. 6, the present invention further provides a line-casting method of a line-casting device, which is applied to a line-casting instrument, and the line-casting method includes:
step S210: establishing communication connection with the positioning device 1;
step S220: receiving a first control instruction sent by the positioning device 1, and controlling the projection light to rotate;
step S230: after the positioning device 1 receives the projection light, a second control instruction is sent to the demarcation device 2;
step S240: and receiving a second control command sent by the positioning device 1, and controlling the projection light to stop rotating.
The line projector 2 has a rotatable function so that the emitted projected light can be controlled to rotate by the positioning device 1 (including horizontal rotation and vertical rotation).
The positioning device 1 establishes a communication connection with the demarcation device 2, and the communication connection can be a wireless connection or a wired connection. The wireless communication connection may include a bluetooth connection, a wifi connection, or other form of wireless connection. Through establishing communication connection between positioner 1 and the demarcation appearance 2, can send various instructions to the demarcation appearance 2 fast conveniently to control the projection light and rotate or stop rotating.
The first control command may be a left turn command for controlling the projected light to rotate to the left, a right turn command for controlling the projected light to rotate to the right, an upper turn command for controlling the projected light to rotate upward, or a lower turn command for controlling the projected light to rotate downward.
Further, the line projection method can further comprise sending a corresponding prompt to an operator after the projection light stops rotating. The prompt can comprise a positioning completion prompt, and the prompting method can comprise a voice prompt and a light prompt.
Furthermore, the line-casting method also comprises the step of sending a prompt of successful connection to an operator when the line-casting instrument 2 establishes communication connection with the positioning device 1. The prompting method can comprise voice prompting and light prompting.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. While the foregoing is directed to the preferred embodiment of the present invention, it is noted that there are no more than infinite specific structures due to the finite nature of the numerical expressions, and that it will be apparent to those skilled in the art that various modifications, enhancements, or variations can be made without departing from the principles of the invention, and that the above-described features can be combined in any suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (10)
1. A line projector, characterized in that it comprises a line projector (2) for emitting projected light, and a positioning device (1) for positioning the projected light;
the line projector (2) can drive the projection light to rotate, the line projector (2) is provided with a line projector control system, and the positioning device (1) is provided with a positioning control system which is in communication connection with the line projector control system;
the positioning control system is used for receiving the projection light and sending a control command to the demarcation device control system;
the line projector control system is used for receiving the control instruction and adjusting the line projector (2) to rotate so as to project the projection light to a preset position.
2. The routing device of claim 1, wherein the positioning control system comprises:
the light sensing module (11) is used for receiving the projection light of the line projector (2) and converting the projection light into an electric signal;
the input module (12) is used for inputting a first control instruction;
the first communication module (13) is used for establishing communication connection with the service line instrument control system;
the first processing module (14) is electrically connected with the light sensing module (11), the input module (12) and the first communication module (13) and is used for receiving the first control instruction and the electric signal and sending a second control instruction for controlling the rotation of the line projector (2) to the line projector control system through the first communication module (13).
3. The routing device according to claim 2, wherein the positioning control system further comprises a display module (15) electrically connected to the first processing module (14) for displaying status information.
4. The lining apparatus of claim 1, wherein the lining apparatus (2) comprises a lining apparatus body (21), and a rotation mechanism (22) for driving the lining apparatus body (21) to rotate, the lining apparatus control system comprising:
a second communication module (23) for establishing a communication connection with the positioning control system;
a second processing module (24) connected to the second communication module (23) and the rotation mechanism (22);
the second processing module (24) receives a control command from the positioning control system through the second communication module (23) and sends an action command to the rotating mechanism (22).
5. The routing device of claim 4, wherein: the rotating mechanism (22) includes:
the movable piece (221) is connected with the demarcation device body (21);
a fixed member (220) connected to the movable member (221);
and the driving mechanism (222) is connected with the movable piece (221) and the fixed piece (220) and is used for driving the movable piece (221) to rotate relative to the fixed piece (220).
6. A line casting method of a line casting device is applied to a positioning device and is characterized by comprising the following steps:
establishing communication connection with the demarcation device (2);
sending a first control instruction to the demarcation device (2) to control the projection light to rotate;
judging whether projection light is received;
if yes, the received projection light is converted into an electric signal, and a second control instruction is sent to the demarcation device (2) to control the projection light to stop rotating.
7. A line casting method of a line casting device is applied to a line casting instrument and is characterized by comprising the following steps:
establishing a communication connection with the positioning device (1);
receiving a first control instruction sent by the positioning device (1) and controlling the projection light to rotate;
after the projection light is received by the positioning device (1), sending a second control instruction to the demarcation device (2);
and receiving a second control command sent by the positioning device (1), and controlling the projection light to stop rotating.
8. A method according to claim 6 or claim 7, wherein the method further comprises providing a prompt to the operator after the projected light has stopped rotating.
9. The method according to claim 6 or 7, characterized in that the method further comprises giving an indication to the operator that the connection is successful when the lining machine (2) establishes a communication connection with the positioning device (1).
10. The method of claim 6 or 7, wherein the first control instruction comprises at least one of:
a left turn command for controlling the projected light to turn to the left;
a right turn command for controlling the projected light to turn to the right;
an up-turn command for controlling the projected light to turn upward;
and a down rotation command for controlling the projection light to rotate downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814030.0A CN115031710A (en) | 2022-07-11 | 2022-07-11 | Line casting device and line casting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814030.0A CN115031710A (en) | 2022-07-11 | 2022-07-11 | Line casting device and line casting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115031710A true CN115031710A (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210814030.0A Pending CN115031710A (en) | 2022-07-11 | 2022-07-11 | Line casting device and line casting method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN115031710A (en) |
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| JP2002041238A (en) * | 2000-07-31 | 2002-02-08 | Seiko Epson Corp | Light pointer, image-creating system, presentation system and information storage medium |
| CN109540111A (en) * | 2018-11-19 | 2019-03-29 | 深圳市度彼电子有限公司 | Automatic tracing throws line apparatus |
| CN112414378A (en) * | 2019-08-22 | 2021-02-26 | 南京德朔实业有限公司 | Fixing device for demarcation device |
| CN113639720A (en) * | 2021-07-01 | 2021-11-12 | 东台市上诚光电科技有限公司 | Laser demarcation device detection system and method based on CCD camera |
| CN215524606U (en) * | 2021-07-28 | 2022-01-14 | 江苏东成工具科技有限公司 | Line projector |
| CN217110938U (en) * | 2022-04-01 | 2022-08-02 | 王强 | Line projector and positioning system thereof |
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2022
- 2022-07-11 CN CN202210814030.0A patent/CN115031710A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002041238A (en) * | 2000-07-31 | 2002-02-08 | Seiko Epson Corp | Light pointer, image-creating system, presentation system and information storage medium |
| CN109540111A (en) * | 2018-11-19 | 2019-03-29 | 深圳市度彼电子有限公司 | Automatic tracing throws line apparatus |
| CN112414378A (en) * | 2019-08-22 | 2021-02-26 | 南京德朔实业有限公司 | Fixing device for demarcation device |
| CN113639720A (en) * | 2021-07-01 | 2021-11-12 | 东台市上诚光电科技有限公司 | Laser demarcation device detection system and method based on CCD camera |
| CN215524606U (en) * | 2021-07-28 | 2022-01-14 | 江苏东成工具科技有限公司 | Line projector |
| CN217110938U (en) * | 2022-04-01 | 2022-08-02 | 王强 | Line projector and positioning system thereof |
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