CN208902877U - A non-contact spatial positioning device - Google Patents

Abstract

The utility model discloses a non-contact spatial positioning device. The non-contact spatial positioning device comprises: a laser sensor, a rotatable platform and a processing device; wherein, the rotatable platform is used to make the laser The sensor rotates in a range of 360 degrees; the laser sensor is installed on the top of the rotatable platform, and the laser sensor is used to transmit and receive laser signals to the two-dimensional space, and transmit the received laser signals to the Processing equipment; the processing equipment performs data processing on the received laser signal to obtain the shape and size of the measured two-dimensional space.

Description

A non-contact spatial positioning device

technical field

The utility model relates to the technical field of spatial positioning, in particular to a non-contact spatial positioning device based on high-precision laser positioning technology.

Background technique

With the popularity of location-based services research in recent years, navigation services have been rapidly applied to various mobile devices. In order to meet the practical needs of today's society, the area and complexity of public indoor spaces have generally increased, and people generally stay indoors for more than 80% of the time. Therefore, indoor navigation has gradually become a hot research field with huge potential market and demand. . However, GPS, the technology most commonly used for positioning and navigation, cannot be easily applied to indoor environments, and researchers must find other ways to meet the requirements of indoor navigation.

At present, for the positioning of complex spaces, ultrasonic positioning is generally used, and the reflective ranging method is used. Although this method has a simple system structure, it is easily affected by multipath effects and non-line-of-sight propagation, which reduces the positioning accuracy; at the same time, it also It requires a lot of investment in the underlying hardware facilities, and the overall cost is relatively high. For some other Bluetooth technologies, UWB technology has poor stability and is greatly interfered by noise signals.

Laser positioning technology is a new measurement technology formed in the measurement field in recent years. Laser positioning measurement technology is a modern measurement technology based on modern optics, computer imaging, information processing, computer vision and other science and technology. It is widely used in construction measurement, medicine and other related technical fields. The principle of the new non-contact measurement method is to place the laser transmitter on the workbench and transmit and receive laser signals within a 360-degree range through a rotatable platform, and then convert it into an intuitive two-dimensional space through computer processing. Schematic. This technology can be used in many types of places where it is inconvenient to measure the shape of space, such as the measurement of positions in closed containers in the chemical industry, some more dangerous areas in the military industry, or areas that are not convenient for humans to measure.

Therefore, researchers propose to solve the existing complex space positioning problem based on laser positioning technology.

Utility model content

The purpose of the present invention is to provide a non-contact space positioning device, which can measure and accurately position relatively complex two-dimensional space shapes in a static state.

The non-contact spatial positioning device of the present invention comprises: a laser sensor, a rotatable platform and a processing device; wherein, the rotatable platform is used to rotate the laser sensor within a range of 360 degrees; The laser sensor is installed on the top of the rotatable platform, and the laser sensor is used to transmit and receive laser signals to the two-dimensional space, and transmit the received laser signals to the processing device; the processing device sends the laser signal to the processing device. The received laser signal is processed to obtain the shape and size of the measured two-dimensional space.

In an embodiment of the present invention, a micro stepping motor is installed on the bottom of the rotatable platform, the micro stepping motor is connected with a programmable controller, and the programmable controller is used to control the micro stepping motor. The stepping motor works so that the rotating shaft of the rotatable platform rotates with the working of the micro stepping motor.

In an embodiment of the present invention, a codec is installed between the processing device and the laser sensor, and the codec is used to convert the laser signal into an electrical signal.

In an embodiment of the present invention, the measurement accuracy of the laser sensor is 0.05mm, and the measuring range is 0.05m to 10m.

In an embodiment of the present invention, the rotating platform is a cylinder.

In an embodiment of the present invention, the diameter of the cylinder is 60 mm.

In an embodiment of the present invention, the cylindrical body has a hollow portion, and the rotating shaft of the rotating platform is arranged in the center of the hollow portion.

In an embodiment of the present invention, a data line is accommodated in the hollow portion, and the data line is used to connect the processing device and the laser sensor.

In an embodiment of the present invention, the laser sensor is arranged at a position where the distance from the horizontal plane of the working area is greater than a predetermined distance value.

In an embodiment of the present invention, the non-contact spatial positioning device further includes a power supply device, and the power supply device is used to supply the laser sensor, the micro stepping motor, the programmable controller and the The processing device is powered.

The advantage of the present utility model is that the non-contact spatial positioning device shown in the present utility model can complete the shape measurement and accurate positioning of the relatively complex two-dimensional space through the laser sensor, the codec and the processing equipment.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a non-contact spatial positioning device in an embodiment of the present invention.

2 is a schematic structural diagram of a programmable controller and a switching power supply in the non-contact spatial positioning device according to the embodiment of the present invention.

3 is a working state diagram of the non-contact spatial positioning device in the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

The terms "first", "second", "third", etc. (if present) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

In this patent document, the drawings discussed below and the embodiments used to describe the principles of the present disclosure are by way of illustration only and should not be construed to limit the scope of the present disclosure. Those skilled in the art will understand that the principles of the present invention may be implemented in any suitably arranged system. Exemplary embodiments will be described in detail, examples of which are illustrated in the accompanying drawings. Also, a terminal according to an exemplary embodiment will be described in detail with reference to the accompanying drawings. The same reference numbers in the figures refer to the same elements.

The terms used in the specification of the present invention are only used to describe specific embodiments, and are not intended to show the concept of the present invention. Expressions used in the singular cover expressions in the plural unless the context clearly indicates a different meaning. In the present specification, it should be understood that terms such as "including", "having" and "comprising" are intended to indicate the existence of the possibility of the features, numbers, steps, actions or combinations thereof disclosed in the present specification, and It is not intended to exclude the possibility that one or more other features, numbers, steps, acts, or combinations thereof may be present or may be added. The same reference numbers in the drawings refer to the same parts.

The embodiment of the present invention provides a non-contact space positioning device. The detailed descriptions will be given below.

Referring to FIGS. 1 to 3 , in an embodiment of the present invention, a non-contact spatial positioning device is provided. The spatial positioning device includes: a laser sensor 120, a rotatable platform 110 and a processing device (not shown in the figure). in,

The rotatable platform 110 is used to rotate the laser sensor 120 within a range of 360 degrees. In this embodiment, a micro-stepping motor 130 is installed on the bottom of the rotatable platform 110, and the micro-stepping motor 130 is connected to a programmable controller 140, and the programmable controller 140 is used to control all the The micro stepping motor 130 works, so that the rotating shaft of the rotatable platform 110 rotates along with the working of the micro stepping motor 130, and rotates in the direction of arrow A as shown in FIG. That is, through the control of the programmable controller 140, the rotation angle and the rotation speed of the rotatable platform 110 can be adjusted. The programmable controller 140 can be a conventional controller in the market, for example, a programmable controller of Delta DVP-14SS model, but not limited thereto.

In this embodiment, the rotating platform is a cylinder. Of course, in other embodiments, the shape of the rotating platform is not limited to this. The diameter of the cylinder is 60 mm. In addition, the cylindrical body has a hollow part, and the rotating shaft of the rotating platform is arranged in the center of the hollow part.

In addition, a data line can be accommodated in the hollow portion in order to save space. The data line is used to connect the processing device and the laser sensor 120, or the data line is used to connect the processing device and a codec (further described below). It should be noted that the data cable should be properly lengthened to prevent the data cable connected to the laser sensor 120 from being incomplete due to the length of the cable when the rotatable platform 110 rotates. In addition, it should be ensured that the data connected to the programmable controller 140 is absorbed as neatly as possible, and the data lines are preferably connected together, so as to prevent interference to the two-dimensional space being measured, inaccurate measurement results, or even measurement failures The problem.

Continuing to refer to FIG. 1 to FIG. 3 , the laser sensor 120 is installed on the top of the rotatable platform 110 , and the laser sensor 120 is used for emitting and receiving laser signals into the two-dimensional space, and will receive laser light The signal is sent to the processing device. In this embodiment, the measurement accuracy of the laser sensor 120 is 0.05 mm, and the measuring range is 0.05 m to 10 m. The laser sensor can be, for example, Yingqin RFA1-10-485M, but not limited thereto.

In addition, the laser sensor 120 is disposed at a position where the distance from the horizontal plane of the working area is greater than a predetermined distance value. In this way, it is helpful to obtain the shape of the complete two-dimensional space when measuring the two-dimensional space. Moreover, the placement direction of the laser sensor 120 is perpendicular to the horizontal plane of the working area.

In this embodiment, a codec (not shown in the figure) is installed between the processing device and the laser sensor 120, and the codec is used to convert the laser signal into an electrical signal. The codec is a codec commonly used in the art.

The processing device performs data processing on the received laser signal, including fitting, detecting and analyzing the data, and processing the data to obtain a convenient and intuitive two-dimensional space schematic diagram. Accurate length and position information can be obtained in the measurement, that is, the shape and size of the measured two-dimensional space can be obtained. The processing equipment includes a conventional industrial computer in the market, such as Advantech ARK-1000, but is not limited thereto.

In addition, in this embodiment, the non-contact spatial positioning device further includes a power supply device 150, and the power supply device 150 is used to supply the laser sensor 120, the micro stepping motor 130, the programmable control The processor 140 and the processing device are powered. In this embodiment, the power supply device 150 is installed near the programmable controller 140 .

The non-contact spatial positioning device provided by the embodiment of the present invention has been described in detail above. It should be understood that the exemplary embodiments described herein should only be considered as descriptive, for helping to understand the method and the core idea of the present invention, but not for limiting the present invention. Descriptions of features or aspects in each exemplary embodiment should generally be considered as applicable to similar features or aspects in other exemplary embodiments. Although the invention has been described with reference to exemplary embodiments, various changes and modifications may be suggested to those skilled in the art. This invention is intended to cover such changes and modifications as come within the scope of the appended claims.

Claims (10)

1. A non-contact spatial positioning device, comprising: a laser sensor, a rotatable platform and a processing device; wherein the rotatable platform is used to rotate the laser sensor within a range of 360 degrees ; The laser sensor is installed on the top of the rotatable platform, the laser sensor is used to transmit and receive laser signals to the two-dimensional space, and transmit the received laser signals to the processing device; the processing device The received laser signal is processed to obtain the shape and size of the measured two-dimensional space. 2. The non-contact spatial positioning device according to claim 1, wherein a micro-stepping motor is installed on the bottom of the rotatable platform, and the micro-stepping motor is connected with a programmable controller, so that the The programmable controller is used to control the operation of the micro-stepping motor, so that the rotating shaft of the rotatable platform rotates with the operation of the micro-stepping motor. 3 . The non-contact spatial positioning device according to claim 1 , wherein a codec is installed between the processing device and the laser sensor, and the codec is used to convert the laser signal into electrical signals. 4 . Signal. 4 . The non-contact spatial positioning device according to claim 1 , wherein the measurement accuracy of the laser sensor is 0.05 mm, and the measuring range is 0.05 m to 10 m. 5 . 5 . The non-contact spatial positioning device according to claim 1 , wherein the rotating platform is a cylinder. 6 . 6 . The non-contact spatial positioning device according to claim 5 , wherein the diameter of the cylinder is 60 mm. 7 . 7 . The non-contact spatial positioning device according to claim 5 , wherein the cylindrical body has a hollow portion, and the rotating shaft of the rotating platform is arranged in the center of the hollow portion. 8 . 8 . The non-contact spatial positioning device according to claim 7 , wherein a data line is accommodated in the hollow portion, and the data line is used for connecting the processing device and the laser sensor. 9 . 9 . The non-contact spatial positioning device according to claim 1 , wherein the laser sensor is arranged at a position where the distance from the horizontal plane of the working area is greater than a preset distance value. 10 . 10 . The non-contact spatial positioning device according to claim 2 , wherein the non-contact spatial positioning device further comprises a power supply device, and the power supply device is used to supply the laser sensor, the microstep Power is supplied to the motor, the programmable controller and the processing device.