CN212008940U

CN212008940U - Projection device capable of changing laser pattern length according to measured surface distance

Info

Publication number: CN212008940U
Application number: CN202020199174.6U
Authority: CN
Inventors: 赵雄飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-11-24
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a can change projection arrangement of laser pattern length according to being surveyed face distance, which comprises a housin, the range finding module, laser marking module, adjustment button, control circuit board, set up the first light-emitting window and the second light-emitting window that supply laser to jet out on the casing, the range finding module is used for detecting projection arrangement's first light-emitting window and is surveyed the distance between the position, and the distance signal that detects is exported, the laser of laser marking module transmission jets out and projects on being surveyed the position from the second light-emitting window, adjustment button is used for adjusting the length size of the laser pattern that laser marking module transmitted. The utility model discloses can adjust the length size of projection region laser pattern on the projection plane according to being measured the face distance.

Description

Projection device capable of changing laser pattern length according to measured surface distance

[ technical field ] A method for producing a semiconductor device

The utility model relates to a laser projection technical field, it is specific relates to a can change projection arrangement of laser pattern length according to surveyed the face distance.

[ background of the invention ]

Laser range finder: the laser distance measuring instrument is an instrument for accurately measuring the distance of a target by using laser (also called laser distance measurement). When the laser distance measuring instrument works, a thin laser beam is emitted to a target, the photoelectric element receives the laser beam reflected by the target, the timer measures the time from emitting to receiving of the laser beam, and the distance from an observer to the target is calculated. However, when a laser range finder is used for measuring distance at present, equipment must be placed at one end of a measuring position, and for some positions which are higher or difficult to touch, certain difficulty is caused in use, and personal injury risks such as falling from high altitude, collapse, object striking and the like can be caused for a user; the other end of the laser range finder, which needs to measure the position, is shielded so as to facilitate the reflection of laser, thereby obtaining the distance, and the measurement work is difficult to be completed for some positions without shielding. Cannot be displayed on an actual object according to a known size, for example, a distance of 3 meters needs to be measured on a wall surface with a surface of 5 meters, which is difficult to be achieved by a laser range finder; the laser range finder measures distance only and cannot record distance information in combination with a specific shape or a picture.

A laser level is a level in which a laser beam emitted from a laser device is guided into a telescope tube of the level and is emitted in the direction of a collimation axis. Wherein, laser marking: using a laser diode, different shapes and patterns such as points, lines, planes, etc. are projected on a plane through an optical lens. However, laser levels simply project horizontal and vertical reference lines onto a plane.

[ Utility model ] content

The main object of the present invention is to provide a projection device capable of changing the length of a laser pattern according to the measured surface distance, wherein the length of the laser pattern can be adjusted according to the measured surface distance.

In order to achieve the above main object, the present invention provides a projection apparatus capable of changing the length of a laser pattern according to the distance between the measured surfaces, which comprises a housing, wherein the housing is provided with a first light-emitting port and a second light-emitting port for emitting laser light; the distance measuring module is arranged on the shell and used for detecting the distance between the first light outlet of the projection device and the measured position and outputting a detected distance signal; the laser marking module is arranged on the shell, and laser emitted by the laser marking module is emitted from the second light outlet and projected on the measured position; the adjusting button is arranged on the shell and used for adjusting the length of the laser pattern emitted by the laser marking module; locate control circuit board in the casing, laser rangefinder module, laser marking module the adjustment button all with control circuit board electricity is connected.

According to a further scheme, the projection device further comprises a wireless communication module, and the control circuit board is communicated with the mobile terminal through the wireless communication module.

In a further aspect, the wireless communication module includes a bluetooth communication module or a WiFi communication module.

A further scheme is, control circuit board is Arduino singlechip, control circuit board control range finding module sends the distance detection signal, control circuit board receives range finding module output range signal, control circuit board is according to control laser marking module projection image.

In a further scheme, the distance measuring module adopts a laser distance measuring module.

In a further aspect, the laser ranging module is configured to emit a laser detection signal from the first light outlet to the measured location, and receive a reflected signal formed after the laser detection signal is reflected at the measured location.

According to a further scheme, the projection device further comprises a data liquid crystal screen, and the control circuit board receives data transmitted by the distance measuring module and the laser marking module and transmits the data to the data liquid crystal screen for display.

According to a further scheme, the projection device further comprises a battery module, and the battery module is electrically connected with the distance measuring module, the laser marking module, the adjusting button, the control circuit board, the wireless communication module and the data liquid crystal screen.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses can be at distance far away, through the length that laser projection direct measurement corresponds the position, need not to put measuring tool to the measurand plane.

2. The utility model discloses need not place measuring tool to the plane of measurand to do not need the other end to have and shelter from.

3. The utility model discloses can be through inputing a known size, direct planar laser projection who compares in needs goes out the response distance.

4. The utility model discloses can pass through the bluetooth communication with intelligent terminal to combine to shoot the photo through giving article earlier in corresponding App procedure, or select the figure of predetermineeing, mark the place that will measure, and accomplish the measurement, relevant size information can the automatic recording get off, convenient follow-up looking over.

5. The utility model discloses can be under the prerequisite that keeps the level with predetermineeing benchmark line or the pattern projection of good size to corresponding position, the person of facilitating the use obtains the show of predetermineeing the size after the level calibration.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of an embodiment of the projection apparatus according to the present invention, in which the length of the laser pattern can be changed according to the distance between the measured surfaces.

Fig. 2 is a schematic diagram of an embodiment of the present invention, in which the length of the laser pattern can be changed according to the distance between the measured surfaces.

Fig. 3 is a schematic diagram of the embodiment of the projection apparatus according to the present invention, in which the distance between the measured surfaces can be changed to change the length of the laser pattern.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.

Referring to fig. 1 and 3, the utility model discloses a can change projection arrangement of laser pattern length according to being surveyed face distance includes casing 10, locate ranging module 1 on casing 10, locate laser marking module 2 on casing 10, locate adjustment button 6 on casing 10, locate control circuit board 8 in the casing 10, wireless communication module 3, data LCD screen 5, battery module 4, laser ranging module, laser marking module 2, adjustment button 6 all are connected with control circuit board 8 electricity. As shown in fig. 1, the distance measuring module 1 and the laser line marking module 2 are arranged in the middle of the front end of the casing 10, the battery module 4 and the wireless communication module 3 are arranged on the left side of the front end of the casing 10, and the data liquid crystal screen 5 and the adjusting button 6 are arranged on the right side of the front end of the casing 10.

In this embodiment, the housing 10 is provided with a first light outlet and a second light outlet for emitting laser, and the distance measuring module 1 is configured to detect a distance between the first light outlet of the projection apparatus and a measured position and output a detected distance signal. The distance measuring module 1 adopts a laser distance measuring module, and the laser distance measuring module is used for emitting a laser detection signal to a measured position from the first light outlet, receiving a reflection signal formed after the laser detection signal is reflected by the measured position, detecting the distance between the first light outlet of the projection device and the measured position, and outputting the detected distance signal to the control circuit board 8.

Specifically, the laser ranging module is an instrument that accurately measures the distance to a target by using a certain parameter of modulated laser. The pulse laser distance meter emits a pulse laser beam or a series of short pulse laser beams to a target when in work, the laser beam reflected by the target is received by a photoelectric element, and the time from the emission to the reception of the laser beam is measured by a timer so as to calculate the distance from the distance meter to the target. Preferably, the laser ranging module of this embodiment may be a TF mini micro lidar module.

In this embodiment, the laser emitted from the laser marking module 2 is emitted from the second light outlet and projected onto the measured position, and the adjusting button 6 is used to adjust the length of the laser pattern emitted from the laser marking module 2.

Specifically, the laser marking module 2 of this embodiment may be a laser scriber in the prior art, and for some application occasions where the lighting condition is good, the standard laser is difficult to distinguish, and the laser scriber can project a laser line with extremely high brightness, so that an operator can easily identify the laser line, and the scriber is provided with a TEC (semiconductor cooling) to ensure that the output power of the underline instrument can still be stable in a high-temperature environment. Through the specially designed prism, the laser scriber provides the light with the clearest line quality in the industry, and the brightness and the width of the whole laser line are kept balanced. In this regard, a reticle is a device that projects a light beam with visible light (red or green light; wavelength is typically 635nm) to indicate a mark.

In this embodiment, the projection apparatus further includes a wireless communication module 3, and the control circuit board 8 communicates with the mobile terminal through the wireless communication module 3. Wherein, the wireless communication module 3 comprises a bluetooth communication module or a WiFi communication module.

Specifically, the bluetooth communication module is a PCBA board integrating the bluetooth function, is used for short-distance wireless communication, and is divided into a bluetooth data module and a bluetooth voice module according to functions. The bluetooth module is a chip basic circuit set integrated with bluetooth function, is used for wireless network communication, and can be roughly divided into three types: data transmission module, bluetooth audio frequency + two unification modules of data etc.. The modules have the property of semi-finished products, and are processed on the basis of chips so as to make subsequent application simpler.

The WiFi communication module is also called a serial port Wi-Fi module, belongs to an internet of things transmission layer, and has the function of converting a serial port or TTL level into an embedded module which accords with a Wi-Fi wireless network communication standard, and a built-in wireless network protocol IEEE802.11b.g.n protocol stack and a TCP/IP protocol stack. The traditional hardware equipment is embedded into a Wi-Fi module, can be directly connected to the Internet by utilizing Wi-Fi, and is an important component for realizing application of Internet of things such as wireless smart home and M2M.

In this embodiment, control circuit board 8 is Arduino singlechip, and control circuit board 8 control ranging module 1 sends apart from detecting signal, and control circuit board 8 receives the distance signal of ranging module 1 output, and control circuit board 8 projects the image according to control laser marking module 2.

In this embodiment, the projection apparatus further includes a data liquid crystal panel 5, and the control circuit board 8 receives the data transmitted by the distance measuring module 1 and the laser marking module 2 and transmits the data to the data liquid crystal panel 5 for display.

In this embodiment, the projection apparatus further includes a battery module 4, and the battery module 4 is electrically connected to the distance measuring module 1, the laser marking module 2, the adjusting button 6, the control circuit board 8, the wireless communication module 3, and the data liquid crystal display 5.

It can be seen that the utility model discloses mainly by laser rangefinder module, laser marking module 2, bluetooth communication module or wiFi communication module, battery module 4, data LCD screen 5, adjustment button 6 constitute, every module all is connected to Arduino singlechip.

In practical application, when used alone, the laser distance measuring module is used to calculate the distance a between the user and the position to be measured, then the user needs to set an initial distance by the adjusting button 6, then the laser marking module 2 projects the laser line or pattern with the initial distance length on the measured plane by means of laser projection, and the adjusting button 6(b 2) is used to change the length of the reference line to fit the actual section of the object to be measured. After fitting, the length displayed on the data liquid crystal screen 5 is the actual size of the measured object. The implementation method is to obtain the projection angle B of the laser marking module 22 according to the formula B ═ arccos a/and ensure that the final projected length matches the value input by the user.

When using with mobile terminal (like cell-phone App) combines, shoot the article photo that will measure on cell-phone App to draw the part that will measure with the tangent bar, then use the utility model discloses measure, measuring result can automatic recording to the photo in the position that corresponds.

Obtain the size of certain article or commodity at cell-phone App to select to project length or height or wide size, the utility model discloses light or the pattern of the actual length of projection according to the distance projection of user and plane of projection.

6. The laser ranging technology is adopted to realize high-precision position location based on the isosceles triangle principle, and the location precision is higher.

It should be noted that the above is only the preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and all the insubstantial modifications made by using the design concept of the present invention also fall within the protection scope of the present invention.

Claims

1. A projection apparatus for varying the length of a laser pattern according to the distance between surfaces to be measured, comprising:

the laser device comprises a shell, a laser module and a laser module, wherein the shell is provided with a first light outlet and a second light outlet for laser emission;

the distance measuring module is arranged on the shell and used for detecting the distance between the first light outlet of the projection device and the measured position and outputting a detected distance signal;

the laser marking module is arranged on the shell, and laser emitted by the laser marking module is emitted from the second light outlet and projected on the measured position;

the adjusting button is arranged on the shell and used for adjusting the length of the laser pattern emitted by the laser marking module;

locate control circuit board in the casing, laser rangefinder module, laser marking module the adjustment button all with control circuit board electricity is connected.

2. A projection device according to claim 1, wherein:

the projection device further comprises a wireless communication module, and the control circuit board is communicated with the mobile terminal through the wireless communication module.

3. A projection device according to claim 2, wherein:

the wireless communication module comprises a Bluetooth communication module or a WiFi communication module.

4. A projection device according to claim 1, wherein:

control circuit board is Arduino singlechip, control circuit board control range finding module sends distance detection signal, control circuit board receives range finding module output range signal, control circuit board is according to control laser marking module projection image.

5. A projection device according to claim 1, wherein:

the distance measurement module adopts a laser distance measurement module.

6. A projection device according to claim 5, wherein:

the laser ranging module is used for transmitting a laser detection signal to the measured position from the first light outlet and receiving a reflection signal formed after the laser detection signal is reflected at the measured position.

7. A projection device according to claim 2, wherein:

the projection device further comprises a data liquid crystal screen, and the control circuit board receives the data transmitted by the distance measuring module and the laser marking module and transmits the data to the data liquid crystal screen for display.

8. A projection device according to claim 7, wherein:

the projection device further comprises a battery module, and the battery module is electrically connected with the distance measuring module, the laser marking module, the adjusting button, the control circuit board, the wireless communication module and the data liquid crystal screen.