CN208902877U - A kind of contactless space positioning apparatus - Google Patents

Abstract

The utility model discloses a kind of contactless space positioning apparatus, the contactless space positioning apparatus includes: a laser sensor, a rotatable platform and a processing equipment；Wherein, the rotatable platform is for rotating the laser sensor within the scope of 360 degree；The laser sensor is mounted on the top of the rotatable platform, and the laser sensor is used for two-dimensional space transmitting laser signal and receives laser signal, and will receive laser signal and be sent to the processing equipment；Received laser signal is carried out data processing by the processing equipment, to obtain the shapes and sizes of surveyed two-dimensional space.

Description

Non-contact space positioning device

Technical Field

The utility model relates to a space positioning technical field especially relates to a non-contact space positioning device based on high accuracy laser positioning technique.

Background

With the popularization of location-based service research in recent years, navigation services have been rapidly applied to various mobile devices. In order to meet the practical requirements of the current society, the area and complexity of public indoor space are also generally improved, people generally stay indoors for more than 80% of the time, and therefore indoor navigation gradually becomes a popular research field with huge potential market and requirements. However, the global positioning system, the most commonly used technique for positioning and navigation, cannot be easily applied in indoor environments, and researchers must search for other ways to meet the requirements of indoor navigation.

At present, ultrasonic positioning is generally adopted for positioning a complex space, and a reflection type distance measurement method is utilized, so that although the system structure is simple, the method is easily influenced by multipath effect and non-line-of-sight propagation, and the positioning precision is reduced; meanwhile, it also requires a large investment in underlying hardware facilities, and the overall cost is high. Other bluetooth technologies have poor stability and are greatly interfered by noise signals.

Laser positioning technology is a new measurement technology developed in the measurement field in recent years. The laser positioning measurement technology is a modern measurement technology which integrates scientific technologies such as modern optics as a basis, computer imaging, information processing, computer vision and the like, and is widely applied to the technical fields related to construction measurement, medicine and the like. The principle of the novel non-contact measurement method is that a laser transmitter is arranged on a workbench, and transmits and receives laser signals within a range of 360 degrees through a rotatable platform, and the laser signals are converted into an intuitive two-dimensional space schematic diagram through the operation and processing of a computer. The technology can be used in various places where the measurement of the shape of a space is inconvenient, such as the measurement of the position in a closed container in the chemical industry, some dangerous areas in the military industry or areas where the measurement is inconvenient for human beings.

Therefore, researchers have proposed laser-based positioning techniques to solve the existing problem of complex spatial positioning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a non-contact spatial location device, it can measure and accurate location to the two-dimensional space shape of relative complicacy under the state of quiescence.

The utility model discloses a non-contact space positioning device, include: the system comprises a laser sensor, a rotatable platform and a processing device; wherein the rotatable platform is used for rotating the laser sensor within a range of 360 degrees; the laser sensor is arranged on the top of the rotatable platform and used for transmitting laser signals to a two-dimensional space, receiving the laser signals and transmitting the received laser signals to the processing equipment; and the processing equipment performs data processing on the received laser signals to obtain the shape and the size of the measured two-dimensional space.

In an embodiment of the present invention, a micro stepping motor is installed at the bottom of the rotatable platform, the micro stepping motor is connected to a programmable controller, the programmable controller is used for controlling the micro stepping motor to work, so that the rotating shaft of the rotatable platform rotates along with the work 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 configured 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 range is 0.05m to 10 m.

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 cylinder has a hollow portion, and the rotating shaft of the rotating platform is disposed 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 for connecting the processing device and the laser sensor.

In an embodiment of the present invention, the laser sensor is disposed at a position away from the horizontal plane of the working area by a distance 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, the power supply device is used for supplying power to the laser sensor, the micro stepping motor, the programmable controller and the processing device.

The utility model has the advantages of, the utility model discloses a non-contact space positioning device can accomplish the shape measurement and the accurate location of the two-dimensional space of relative complicacy through laser sensor, codec and treatment facility etc..

Drawings

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

Fig. 1 is a schematic structural diagram of a non-contact spatial positioning device according to an embodiment of the present invention.

Fig. 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.

Fig. 3 is a diagram illustrating an operating state of the non-contact spatial positioning device according to the embodiment of the present invention.

Detailed Description

The technical solution 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. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

The terms "first," "second," "third," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In this patent document, the drawings discussed below and the various embodiments used to describe the principles of the present disclosure are by way of illustration only and should not be construed in a limiting sense. Those skilled in the art will understand that the principles of the present invention may be implemented in any suitably arranged system. Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. Further, a terminal according to an exemplary embodiment will be described in detail with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the inventive concepts. Unless the context clearly dictates otherwise, expressions used in the singular form encompass expressions in the plural form. In the present specification, it is to be understood that terms such as "comprising," "having," and "containing" are intended to specify the presence of the features, integers, steps, acts, or combinations thereof disclosed in the specification, and are not intended to preclude the presence or addition of one or more other features, integers, steps, acts, or combinations thereof. Like reference symbols in the various drawings indicate like elements.

The embodiment of the utility model provides a non-contact space positioning device. The details will be described below separately.

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

the rotatable platform 110 is used to rotate the laser sensor 120 through a 360 degree range. In this embodiment, a micro-stepping motor 130 is installed at the bottom of the rotatable platform 110, the micro-stepping motor 130 is connected to a programmable controller 140, and the programmable controller 140 is configured to control the operation of the micro-stepping motor 130, so that the rotation shaft of the rotatable platform 110 rotates along with the operation of the micro-stepping motor 130, as shown in fig. 3, which is not limited thereto. That is, the rotation angle and the speed of the rotatable platform 110 are adjusted by the control of the programmable controller 140. The programmable controller 140 may be a commercially available conventional controller, such as, but not limited to, a programmable controller of the Delta DVP-14SS model.

In this embodiment, the rotating platform is a cylinder. Of course, in other embodiments, the shape of the rotating platform is not limited thereto. The diameter of the cylinder is 60 mm. In addition, the cylinder is provided with 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, so that space is saved. The data line is used to connect the processing device to the laser sensor 120, or the data line is used to connect the processing device to a codec (described further below). It should be noted that the data line is lengthened appropriately to prevent the data line connected to the laser sensor 120 from being short and causing incomplete data acquisition when the rotatable platform 110 rotates. In addition, it should be ensured that the data absorption of the programmable controller 140 connected thereto is as regular as possible, and the data lines are preferably connected together, so as to prevent the problems of interference with the two-dimensional space to be measured, inaccurate measurement results, and even measurement failures.

With continued reference to fig. 1-3, the laser sensor 120 is mounted on top of the rotatable platform 110, and the laser sensor 120 is configured to transmit and receive laser signals to and from a two-dimensional space and transmit the received laser signals to the processing device. In the present embodiment, the measurement accuracy of the laser sensor 120 is 0.05mm, and the range is 0.05m to 10 m. The laser sensor may employ, for example, the commute RFA1-10-485M, but is not limited thereto.

In addition, the laser sensor 120 is disposed at a position spaced apart from the horizontal plane of the working area by a predetermined distance value. In this way, it is helpful to obtain the shape of the complete two-dimensional space when performing the measurement of the two-dimensional space. And, the laser sensor 120 is placed in a direction perpendicular to the horizontal plane of the working area.

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

The processing equipment carries out data processing on the received laser signals, fitting, detecting and analyzing the data, processes the data to obtain a convenient and visual two-dimensional space schematic diagram, and obtains accurate length and position information in the two-dimensional space schematic diagram, namely the shape and size of the measured two-dimensional space. The processing equipment includes a commercially available conventional industrial personal computer such as, but not limited to, the Johnson (Advantech) ARK-1000.

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

The above is a detailed description of the non-contact spatial positioning device provided by the embodiments of the present invention. It should be understood that the exemplary embodiments described herein should be considered merely illustrative for facilitating an understanding of the method of the present invention and its core ideas, and not limiting the 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. While the invention has been described with reference to exemplary embodiments, various changes and modifications may be suggested to one skilled in the art. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims.

Claims (10)

1. A non-contact spatial locating device, comprising: the system comprises a laser sensor, a rotatable platform and a processing device; wherein the rotatable platform is used for rotating the laser sensor within a range of 360 degrees; the laser sensor is arranged on the top of the rotatable platform and used for transmitting laser signals to a two-dimensional space, receiving the laser signals and transmitting the received laser signals to the processing equipment; and the processing equipment performs data processing on the received laser signals to obtain the shape and the size of the measured two-dimensional space.

2. The non-contact spatial positioning device of claim 1, wherein a micro stepper motor is mounted at the bottom of the rotatable platform, and the micro stepper motor is connected to a programmable controller, and the programmable controller is configured to control the micro stepper motor to operate, so that the rotation shaft of the rotatable platform rotates along with the operation of the micro stepper motor.

3. The non-contact spatial positioning apparatus of claim 1, wherein a codec is installed between said processing device and said laser sensor, said codec being configured to convert a laser signal into an electrical signal.

4. The non-contact spatial locator device of claim 1 wherein the laser sensor has a measurement accuracy of 0.05mm and a range of 0.05m to 10 m.

5. The non-contact spatial locator device of claim 1 wherein the rotating platform is a cylinder.

6. The non-contact spatial locator device of claim 5 wherein the cylinder has a diameter of 60 mm.

7. The apparatus according to claim 5, wherein the cylinder has a hollow portion, and the rotation axis of the rotary platform is disposed at the center of the hollow portion.

8. The non-contact spatial locator device of claim 7 wherein a data line is received within the hollow portion, the data line for connecting the processing apparatus and the laser sensor.

9. The non-contact spatial positioning device of claim 1, wherein the laser sensor is positioned at a distance greater than a predetermined distance from the horizontal plane of the work area.

10. The non-contact spatial locator device of claim 2 further comprising a power supply for powering the laser sensor, the micro stepper motor, the programmable controller, and the processing device.