A measurement method and device

Abstract

The present application discloses a measurement method and apparatus. The method includes placing a plurality of positioning modules at a plurality of characteristic positions of an object to be measured, obtaining the spatial coordinates of each positioning module, and determining the measurement information of the object to be measured based on the spatial coordinates. Through the above method and apparatus, it is possible to obtain the measurement information of the object to be measured in an environment with limited space, such as a closed or narrow space, or when it is impossible to obtain the measurement information of the object to be measured due to the large size of the object to be measured.

Description

Technical Field

[0001] This application relates to the field of object measurement, and particularly to an object measurement method and device. Background Art

[0002] With the progress and popularization of wireless communication, the demand for Location Based Service (LBS) is increasing vigorously, and the application fields are also constantly expanding. The rapid development and popularization of various short-range wireless communication technologies have provided more positioning technologies and methods for wireless positioning.

[0003] The short-range wireless communication technology standards are mainly several sub-standards in the IEEE802.15 series, including Radio Frequency ID (RFID) technology, Bluetooth technology, Ultra Wide Band (UWB) technology, and ZigBee technology, etc. However, currently in practical applications, it is only limited to using the above short-range wireless communication technologies to achieve the positioning function. Summary of the Invention

[0004] In view of the above problems, this application provides an object measurement method and device, which can utilize the positioning function in the existing short-range wireless communication technology to measure the object to be measured.

[0005] In a first aspect, this application provides a measurement method, including: placing a plurality of positioning modules at multiple characteristic positions of the object to be measured, obtaining the spatial coordinates of each positioning module, and determining the measurement information of the object to be measured based on the spatial coordinates.

[0006] In the technical solution of the embodiments of this application, when the object to be measured is in a narrow or enclosed space, or the size of the object to be measured is large, such that it is impossible to obtain the measurement information of the object to be measured through the existing multi-directional scanning method or direct contact method, through the above measurement method, the measurement information of the object to be measured can be obtained without being affected.

[0007] In some embodiments, the spatial coordinates of each positioning module can be remotely obtained wirelessly. Obtaining the coordinates of the positioning module wirelessly can be not restricted by the space where the object to be measured is located, such as narrow, enclosed, blocked, or the object to be measured is large, and the existing full-direction scanning or using a handheld device to contact each characteristic position of the object to be measured to obtain the spatial coordinates cannot obtain the external contour characteristics of the object to be measured.

[0008] In some embodiments, the multiple characteristic positions are positions that can reflect the shape characteristics of the object to be measured. The measurement method of the embodiments of this application can be applicable to the measurement of various regular or irregularly shaped objects to be measured.

[0009] In some embodiments, the positioning module can be reused. By reusing the positioning module in this way, the usage cost of the positioning module during the measurement process can be reduced.

[0010] In some embodiments, obtaining the spatial coordinates of each positioning module includes obtaining the spatial coordinates of each positioning module and / or feature position by contacting the positioning module and / or the feature position. Through the embodiments of the present application, even in a closed or narrow space, for example, or when the object to be measured is large, the handheld device can reach some or all of the feature positions of the object to be measured. Therefore, the spatial coordinates of some or all of the feature positions can be determined by using the handheld device to contact the positioning module or the feature position. This can further supplement and improve the measurement method of the present application.

[0011] In some embodiments, placing a plurality of positioning modules at a plurality of feature positions of the object to be measured includes automatic placement by an automatic placement device and / or manual placement. Through the embodiments of the present application, when the shape profile of the object to be measured is regular or the usage scenario is relatively fixed, the positioning module can be automatically placed at the feature position of the object to be measured by a device such as a robotic arm, for example, and the automatic placement device can also automatically identify the feature position of the object to be measured, thereby realizing the automatic placement of the positioning module, which is not limited herein. At the same time, manual placement can also be performed manually, which can be applicable to the measurement of objects to be measured with more complex shape profiles.

[0012] In some embodiments, the measurement information of the object to be measured includes the shape characteristics and size information of the object to be measured. The output measurement information including the shape characteristics and size information of the object to be measured can more completely reflect the characteristic information of the object to be measured.

[0013] In some embodiments, the shape characteristics of the object to be measured are manually input, or the contour of the object to be measured is scanned to determine the shape characteristics of the object to be measured. In the embodiments of the present application, the feature position of the object to be measured is determined based on the shape of the object to be measured, and then the size of the object to be measured can be measured through the spatial coordinates of the positioning module placed at the feature position, and the measurement information as the final result includes both the shape characteristics and size information.

[0014] In some embodiments, it is confirmed whether the spatial coordinates meet the measurement requirements. Through the above detection of the spatial coordinates of the positioning module in the embodiments of the present application, the problem of inability to output or incorrect output of the measurement result is avoided.

[0015] In a second aspect, the present application provides a measuring device, which includes: a positioning module placement component for placing a plurality of positioning modules at a plurality of characteristic positions of an object to be measured; a spatial coordinate acquisition component for acquiring the spatial coordinates of each positioning module; and a measurement information determination component for determining the measurement information of the object to be measured based on the spatial coordinates.

[0016] In some embodiments, the spatial coordinate acquisition component is further configured to remotely acquire the spatial coordinates of each positioning module in a wireless manner.

[0017] In some embodiments, the plurality of characteristic positions are positions that can reflect the shape characteristic information of the object to be measured.

[0018] In some embodiments, the positioning module can be reused.

[0019] In some embodiments, the spatial coordinate acquisition component is further configured to acquire the spatial coordinates of each positioning module and / or characteristic position by contacting the positioning module and / or the characteristic position.

[0020] In some embodiments, the positioning module placement component is further configured to automatically place and / or manually place the positioning module through an automatic placement device.

[0021] In some embodiments, the measurement information of the object to be measured includes the shape characteristics and dimension information of the object to be measured.

[0022] In some embodiments, it further includes a shape characteristic acquisition component for manually inputting the shape characteristics of the object to be measured or scanning the contour of the object to be measured to determine the shape characteristics of the object to be measured.

[0023] In some embodiments, it further includes a spatial coordinate judgment component for confirming whether the spatial coordinates meet the measurement requirements.

[0024] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are hereinafter specifically exemplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0026] Figure 1Schematic diagram of an application scenario for measuring an object to be measured 1000 according to some embodiments of the present application;

[0027] Figure 2 Flowchart of a measurement method according to some embodiments of the present application;

[0028] Figure 3 Schematic diagram of the structure of a measurement device according to some embodiments of the present application;

[0029] Figure 4 Flowchart of a measurement method according to some embodiments of the present application.

[0030] The accompanying drawings are only schematic and are not drawn to actual scale. Detailed implementation manners

[0031] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality of" means more than two unless otherwise specifically defined.

[0034] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art understand explicitly and implicitly that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0036] In the description of the embodiments of the present application, the term "a plurality" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups), and "a plurality of pieces" means two or more pieces (including two pieces).

[0037] In the description of the embodiments of the present application, for technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0039] Currently, for the measurement of an object, usually a corresponding scanning device is used to scan the object to be measured from all directions by means of laser, ultrasound, or multi-view photography, etc., that is, full-direction scanning, so as to obtain the shape characteristics and dimension information of the object to be measured. In addition, a handheld device can also be used to contact each characteristic position of the object to be measured to obtain the spatial coordinates of each characteristic position, so as to obtain the shape characteristics and dimension information of the object to be measured.

[0040] The inventor of the present application has noticed that in some usage environments, such as in a closed or narrow space, due to space limitations, the scanning device cannot scan the object to be measured from all directions, and the handheld device cannot reach some characteristic positions either. Or when the object to be measured is relatively large, due to the scanning ability of the scanning device, such as its limited scanning distance or power, the information of some characteristic positions of the object to be measured that are relatively far away cannot be obtained. At this time, due to reasons such as the device size, the handheld device cannot reach some characteristic positions of the object to be measured either. The above situations will all result in the final inability to obtain the measurement information of the object to be measured.

[0041] To solve the above situation where it is impossible to obtain the measurement information of the object to be measured, the applicant's research found that various short-distance wireless communication technologies can interact wirelessly between the reading device and the positioning module. For example, the relative position or distance between the reading device and the positioning module can be obtained through information such as the signal strength of the wireless signal, and then the spatial coordinates of the positioning module can be obtained by further means such as the triangulation principle by setting multiple reading devices.

[0042] Based on the above considerations, in order to be able to measure the object to be measured through the positioning function of short-distance wireless communication technology, the inventor conducted in-depth research and designed a measurement method. By placing the positioning module at a position that can reflect the contour characteristics of the object to be measured, the spatial coordinates of each positioning module are obtained, and the relative positions or distances of each characteristic position are calculated based on the spatial coordinates, so as to obtain the measurement information of the object to be measured, such as size information, etc.

[0043] The measurement method and device disclosed in the embodiments of the present application are not limited to measuring objects in enclosed or narrow spaces, or measuring large-sized objects. The measurement method and device disclosed in the present application can be used in various application scenarios to measure objects of various shapes, as long as the shape of the object can be described by a limited number of characteristic positions.

[0044] For the convenience of description, the following embodiments take the scenario of measuring the object to be measured 1000 in an embodiment of the present application as an example for description.

[0045] Please refer to Figure 1 , Figure 1 , which schematically shows the application scenario of measuring the object to be measured 1000. In this embodiment, the object to be measured 1000 is schematically represented as a cuboid, and the positioning modules 1021, 1022, 1023, and 1024 are schematically represented by small cuboids, which can also be of various other shapes or forms as long as they have the positioning signal emission function. The positioning modules 1021, 1022, 1023, and 1024 are schematically placed at three vertices of the object to be measured 1000 respectively. Through the spatial coordinates of the three vertices, the spatial position of the object to be measured 1000 can be described, and then its length, width, and height can be calculated. The spatial coordinates can be represented using a three-dimensional coordinate system, that is, the X-Y-Z coordinate system.

[0046] The reading devices 1011, 1012, and 1013 are schematically represented by cylinders, can read the positioning signals emitted by each positioning module, and can determine parameters such as the relative position or distance from the positioning module that emits the positioning signal based on information such as the intensity of the positioning signal. The reading device can be of any other shape or form as long as it can read the positioning signals emitted by the positioning module, and the reading device can read the positioning signals emitted by one or more positioning modules simultaneously.

[0047] Figure 1 It is schematically shown that the reading devices 1011, 1012, and 1013 can all receive the positioning signals emitted by the positioning module 1023. Thus, the relative positions or distances between the reading devices 1011, 1012, and 1013 and the positioning module 1023 can be determined respectively. When the spatial coordinates of the reading devices 1011, 1012, and 1013 are known, the spatial coordinates of the positioning module 1023 can be calculated through techniques such as triangulation. In the same way, the spatial coordinates of the positioning modules 1021, 1022, and 1024 can be obtained. When the three-dimensional spatial coordinates of the positioning modules 1021, 1022, 1023, and 1024 are known, the distances between the positioning modules 1021, 1022, 1023, and 1024 can be calculated, thereby determining the length, width, and height of the object 1000 to be measured.

[0048] As shown in the figure, the distance between the positioning modules 1021 and 1023 represents the length of the object 1000 to be measured, the distance between the positioning modules 1022 and 1023 represents the width of the object 1000 to be measured, and the distance between the positioning modules 1023 and 1024 represents the height of the object 1000 to be measured. Figure 1 In, the object 1000 to be measured is schematically represented as a cuboid, and it can also be of other shapes, such as a sphere, a cylinder, a pyramid, etc., as long as its shape contour can be defined by a limited number of characteristic positions.

[0049] Figure 1 In, the reading device and the positioning module can use radio frequency identification RFID (Radio Frequency ID) technology, Bluetooth technology, ultra-wideband UWB (Ultra Wide Band) technology, and / or ZigBee technology, as long as the reading device can receive the positioning signals emitted by the positioning module and can determine parameters such as the relative position or distance from the positioning module that emits the positioning signal.

[0050] According to some embodiments of the present application, with reference to Figure 2 , Figure 2 is a schematic flowchart of a measurement method according to some embodiments of the present application. It includes:

[0051] S201, Place multiple positioning modules at multiple characteristic positions of the object to be measured.

[0052] S202, Obtain the spatial coordinates of each positioning module.

[0053] S203, Determine the measurement information of the object to be measured based on the spatial coordinates.

[0054] Among them, the positioning module can be a module using Radio Frequency ID (RFID) technology, Bluetooth technology, Ultra Wide Band (UWB) technology, and / or ZigBee technology, as long as it can emit a positioning signal and, after the positioning signal is read by a reading device using the same short-range wireless communication technology, can determine parameters such as the relative position and distance between the reading device and the positioning module.

[0055] The object to be measured can be of various regular or irregular shapes, as long as its outer contour can be defined by a limited number of characteristic positions. The characteristic position refers to the position that can define the outer contour of the object to be measured, such as the vertices of a cube, the intersection points of the straight lines in the radial direction of a sphere and the sphere surface, etc. The more complex the shape contour of the object to be measured, the more characteristic positions are required to describe its shape characteristics.

[0056] The spatial coordinates of the positioning module refer to the three-dimensional spatial coordinates of each positioning module located at the characteristic position, and the spatial coordinates of each positioning module can be defined by the coordinate values of the X, Y, and Z axes respectively. And, based on the spatial coordinates of each positioning module, the relative position or distance between each positioning module can be calculated. Since each positioning module is placed at the characteristic position that can define the shape contour of the object to be measured, therefore, the relative position or distance of each characteristic position can be determined based on parameters such as the relative position or distance of each positioning module, so as to obtain the measurement information of the object to be measured, and the measurement information includes the shape characteristics and size information of the object to be measured. For example, Figure 1 The length, width, and height of the object to be measured 1000, or the diameter of a sphere.

[0057] Through the above method, when the object to be measured is in a narrow or enclosed space, or the volume of the object to be measured is large, making it impossible to obtain the measurement information of the object to be measured through the existing all-directional scanning method or the method of directly contacting the characteristic position, the measurement information of the object to be measured can still be obtained.

[0058] According to some embodiments of the present application, optionally, the spatial coordinates of each positioning module can be remotely obtained wirelessly.

[0059] The wireless method may be Radio Frequency ID (RFID) technology, Bluetooth technology, Ultra Wide Band (UWB) technology, and / or ZigBee technology.

[0060] When using RFID (Radio Frequency ID) technology, the positioning module is an RFID tag, also known as a radio frequency tag or electronic tag. RFID (Radio Frequency ID) technology is a contactless, automatic identification technology. A reader automatically identifies the tag and retrieves its data through radio frequency signals. This identification process requires no human intervention and is suitable for use in harsh environments. RFID technology can identify multiple tags simultaneously, making operation quick and convenient.

[0061] When using Bluetooth technology, ultra-wideband UWB (Ultra Wide Band) technology, or ZigBee technology, the positioning module is a chip or module that can use the corresponding technology to transmit a positioning signal. The positioning signal it transmits can be read by a reading device using the corresponding technology, and parameters such as relative position or distance can be obtained based on the positioning signal.

[0062] For example, an RSSI (Received Signal Strength Indication) algorithm can be used to obtain parameters such as relative position or distance through the positioning signal sent by the positioning module. This application does not limit the algorithm for obtaining relative position or distance parameters based on positioning, as long as the positioning of the corresponding module can be achieved and its spatial coordinates can be obtained. Obtaining the spatial coordinates of the positioning module wirelessly is not limited by the space where the object to be measured is located, such as a small, closed, or obstructed space, or the object to be measured is large, and the existing omnidirectional scanning or the use of a handheld device to contact the various feature positions of the object to be measured to obtain the spatial coordinates cannot obtain the contour features of the object to be measured.

[0063] According to some embodiments of the present application, the plurality of characteristic positions are positions that can reflect the shape characteristics of the object to be measured.

[0064] The object to be measured is usually a regular three-dimensional figure or a combination of multiple regular three-dimensional figures. A regular three-dimensional figure can be defined by a limited number of characteristic positions for its shape contour, and then its dimensional information can be obtained. For example, for a cuboid, its length, width, and height can be determined through 4 selected vertices; for a sphere, the distance between the two intersection points of the straight line passing through the center of the sphere, that is, the straight line in the radial direction and the surface of the sphere, is the diameter of the sphere; for a cylinder, the upper and lower surfaces are circular, and the distance between the two intersection points of the straight line passing through its center, that is, the straight line in the radial direction and the circle, is the diameter of the upper and lower surfaces, and the distance between the upper and lower surfaces is the height of the cylinder. It can be seen that a regular three-dimensional figure can be defined by multiple selected characteristic positions for its shape contour. Even for an irregular three-dimensional figure, it can be decomposed into multiple regular or approximately regular three-dimensional figures, so as to define its shape contour by a limited number of characteristic positions and then obtain its dimensional information. Therefore, the measurement method of the present application can be applied to the measurement of objects to be measured with various regular or irregular shapes.

[0065] According to some embodiments of the present application, optionally, the positioning module can be used repeatedly.

[0066] After completing the measurement of an object to be measured once, the positioning module placed at the characteristic position of the object to be measured can be removed and placed at the characteristic position of the object to be measured again during the next measurement. The repeated use can be achieved through various repeated use methods such as pasting, magnetic adsorption, and electrostatic adsorption, which are not limited herein. By this way of repeatedly using the positioning module, the use cost of the positioning module during the measurement process can be reduced.

[0067] According to some embodiments of the present application, optionally, obtaining the spatial coordinates of each positioning module includes obtaining the spatial coordinates of each positioning module and / or characteristic position by contacting the positioning module and / or the characteristic position.

[0068] Contacting the positioning module or the characteristic position means using a handheld device to contact the positioning module or the characteristic position to obtain more accurate spatial coordinates. When the handheld device contacts the positioning module, it may be to read the spatial coordinates of the positioning module, thus avoiding signal errors or signal losses caused by wireless transmission. When the handheld device contacts the characteristic position, it may be to directly determine the spatial coordinates of the contact point by the handheld device, thus avoiding the positioning and measurement errors of the spatial coordinates generated by the positioning module. Even in, for example, a closed or narrow space, or when the object to be measured is large, the handheld device can reach some or all of the characteristic positions of the object to be measured. Therefore, the spatial coordinates of some or all of the characteristic positions can be determined by using the method of contacting the positioning module or the characteristic position with the handheld device. This can further supplement and improve the measurement method of the present application.

[0069] According to some embodiments of the present application, optionally, placing the plurality of positioning modules at a plurality of characteristic positions of the object to be measured includes automatic placement by an automatic placement device and / or manual placement.

[0070] When the shape contour of the object to be measured is relatively regular or the usage scenario is relatively fixed, the positioning module can be automatically placed at the characteristic position of the object to be measured by a device such as a robotic arm, or the automatic placement device can automatically identify the characteristic position of the object to be measured, so as to realize the automatic placement of the positioning module, which is not limited herein. At the same time, manual placement can also be performed manually, which can be applied to the measurement of objects to be measured with more complex shape contours.

[0071] According to some embodiments of the present application, optionally, the measurement information of the object to be measured includes the shape characteristics and size information of the object to be measured.

[0072] After the measurement is completed, the output measurement information including the shape characteristics and size information of the object to be measured can more completely reflect the characteristic information of the object to be measured. For example, the measurement information includes: cuboid, L (length) + W (width) + H (height); or, sphere, L (sphere diameter); or, cylinder, L (bottom diameter) + H (height).

[0073] According to some embodiments of the present application, optionally, manually input the shape characteristics of the object to be measured, or scan the contour of the object to be measured to determine the shape characteristics of the object to be measured.

[0074] To determine the characteristic position of the object to be measured based on its shape, and then the size of the object to be measured can be measured through the spatial coordinates of the positioning module placed at the characteristic position, and the measurement information as the final result includes both the shape characteristics and size information. The shape information can be manually input or the shape characteristics of the object to be measured can be determined by scanning. However, the scanning here does not need to determine its accurate size information, and only its shape characteristics can be obtained.

[0075] According to some embodiments of the present application, optionally, confirm whether the spatial coordinates meet the measurement requirements.

[0076] After obtaining the spatial coordinates of each positioning module, it is necessary to further verify the spatial coordinates in combination with the shape characteristics of the object to be measured, such as the correctness and integrity of the spatial coordinates. The correctness refers to whether the spatial coordinates deviate too much, whether they are significantly offset from the measurement area, or whether the relative positional relationship of the spatial coordinates of each positioning module is significantly incorrect, etc. The integrity refers to whether the spatial coordinates of each positioning module completely contain the values of its three coordinate systems X, Y, and Z, or whether the spatial coordinates of one or several positioning modules are missing, resulting in the inability to calculate the measurement information of the object to be measured. Through the above detection of the spatial coordinates of the positioning module, the problem of being unable to output or incorrectly outputting the measurement result is avoided.

[0077] According to some embodiments of the present application, with reference to Figure 3 , Figure 2 FIG. 300 is a schematic structural diagram of a measuring device 300 according to some embodiments of the present application. It includes:

[0078] A positioning module placement component 301 for placing a plurality of positioning modules at a plurality of characteristic positions of the object to be measured.

[0079] A spatial coordinate acquisition component 302 for acquiring the spatial coordinates of each positioning module.

[0080] A measurement information determination component 303 for determining the measurement information of the object to be measured based on the spatial coordinates.

[0081] According to some embodiments of the present application, optionally, the spatial coordinate acquisition component is further configured to remotely acquire the spatial coordinates of each positioning module in a wireless manner.

[0082] According to some embodiments of the present application, optionally, the plurality of characteristic positions are positions that can reflect the shape characteristic information of the object to be measured.

[0083] According to some embodiments of the present application, optionally, the positioning module can be reused.

[0084] According to some embodiments of the present application, optionally, the spatial coordinate acquisition component is further configured to acquire the spatial coordinates of each positioning module and / or characteristic position by contacting the positioning module and / or the characteristic position.

[0085] According to some embodiments of the present application, optionally, the positioning module placement component is further configured to automatically place and / or manually place the positioning module through an automatic placement device.

[0086] According to some embodiments of the present application, optionally, the measurement information of the object to be measured includes the shape characteristics and size information of the object to be measured.

[0087] According to some embodiments of the present application, optionally, it further includes a shape feature acquisition component, which is used to manually input the shape features of the object to be measured, or scan the contour of the object to be measured to determine the shape features of the object to be measured.

[0088] According to some embodiments of the present application, it further includes a spatial coordinate judgment component, which is used to confirm whether the spatial coordinates meet the measurement requirements.

[0089] The above-mentioned measuring device 300 can execute Figure 2 the method provided by the embodiments of the present application shown, and has corresponding functional modules and beneficial effects for executing the method. For technical details not described in detail in this embodiment, reference can be made to the method provided by the embodiments of the present application.

[0090] According to some embodiments of the present application, refer to Figure 4 , Figure 4 is a flowchart of a measurement method based on the embodiments of the present application. The measurement method includes the steps:

[0091] S401, the measurement starts.

[0092] S402, acquire the shape features of the object to be measured. It includes manually inputting the shape features of the object to be measured, or scanning the contour of the object to be measured to determine the shape features of the object to be measured.

[0093] S403, place the positioning module at the feature position of the object to be measured. Optionally, it can be automatically placed by an automatic placement device and / or manually placed. When the shape contour of the object to be measured is relatively regular or the usage scenario is relatively fixed, the positioning module can be automatically placed at the feature position of the object to be measured by a device such as a robotic arm, or the automatic placement device can automatically identify the feature position of the object to be measured, so as to realize the automatic placement of the positioning module, which is not limited here. At the same time, it can also be manually placed by manual means, which is applicable to the measurement of objects to be measured with more complex shape contours.

[0094] S404. Obtain the spatial coordinates remotely via wireless means, or by contacting the positioning module or characteristic positions. Obtaining the coordinates of the positioning module via wireless means can be unrestricted by the space where the object to be measured is located. For example, in a narrow, enclosed, or obstructed space, or when the object to be measured is large, it is impossible to obtain the contour features of the object to be measured using existing omnidirectional scanning or by using a handheld device to contact each characteristic position of the object to be measured to obtain spatial coordinates. Contacting the positioning module or characteristic positions means using a handheld device to contact the positioning module or characteristic positions to obtain spatial coordinates more precisely. Contacting the positioning module with a handheld device can be for reading the spatial coordinates of the positioning module, thus avoiding signal errors or signal loss caused by wireless transmission. Contacting the characteristic positions with a handheld device can be for directly determining the spatial coordinates of the contact points by the handheld device, thus avoiding the positioning and measurement errors of the spatial coordinates generated by the positioning module.

[0095] S405. The spatial coordinates meet the measurement requirements. After obtaining the spatial coordinates of each positioning module, it is necessary to further verify the spatial coordinates in combination with the shape characteristics of the object to be measured, such as the correctness and integrity of the spatial coordinates. The correctness refers to whether the spatial coordinates deviate too much, whether they are significantly offset from the measurement area, or whether the relative position relationship of the spatial coordinates of each positioning module is significantly incorrect, etc. The integrity refers to whether the spatial coordinates of each positioning module completely contain the values of its X, Y, and Z coordinate systems, or whether the spatial coordinates of one or several positioning modules are missing, resulting in the inability to calculate the measurement information of the object to be measured.

[0096] S406. Calculate the measurement information of the object to be measured based on the spatial coordinates of the positioning module. The spatial coordinates of the positioning module refer to the three-dimensional spatial coordinates of each positioning module located at the characteristic positions, and the spatial coordinates of each positioning module can be defined separately using the coordinate values of the X, Y, and Z axes. Moreover, based on the spatial coordinates of each positioning module, the relative position or distance between each positioning module can be calculated. Since each positioning module is placed at the characteristic positions that can define the object to be measured, the relative position or distance of each characteristic position can be determined based on parameters such as the relative position or distance of each positioning module, thereby obtaining the measurement information of the object to be measured.

[0097] S407. Output the shape characteristics and measurement information of the object to be measured. The output measurement information includes the shape characteristics and dimension information of the object to be measured to more comprehensively reflect the characteristic information of the object to be measured. For example, the measurement information includes: cuboid, L (length) + W (width) + H (height); or, sphere, L (sphere diameter); or, cylinder, L (bottom diameter) + H (height).

[0098] S408. Measurement ends

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A measurement method, characterized in that, Including, Placing a plurality of positioning modules at a plurality of characteristic positions of the object to be measured, Obtaining the spatial coordinates of each positioning module, Determining the measurement information of the object to be measured based on the spatial coordinates.

2. The method according to claim 1, characterized in that, The obtaining the spatial coordinates of each positioning module includes remotely obtaining the spatial coordinates of each positioning module by wireless means.

3. The method according to claim 1 or 2, characterized in that, The plurality of characteristic positions are positions that can reflect the shape characteristics of the object to be measured.

4. The method according to claim 1 or 2, characterized in that The positioning module can be used repeatedly.

5. The method according to claim 1 or 2, characterized in that, The obtaining the spatial coordinates of each positioning module includes obtaining the spatial coordinates of each positioning module by contacting the positioning module, and / or obtaining the spatial coordinates of each characteristic position by contacting the characteristic position.

6. The method according to claim 1 or 2, characterized in that, The placing a plurality of positioning modules at a plurality of characteristic positions of the object to be measured includes automatically placing by an automatic placement device or manually placing.

7. The method according to claim 1 or 2, characterized in that The measurement information of the object to be measured includes the shape characteristics and size information of the object to be measured.

8. The method according to claim 7, characterized in that It further includes manually inputting the shape characteristics of the object to be measured or scanning the contour of the object to be measured to determine the shape characteristics of the object to be measured.

9. The method according to claim 1 or 2, characterized in that, It further includes confirming whether the spatial coordinates meet the measurement requirements.

10. A measuring device, characterized in that, Including, A positioning module placement component for placing a plurality of positioning modules at a plurality of characteristic positions of the object to be measured, A spatial coordinate acquisition component for obtaining the spatial coordinates of each positioning module, A measurement information determination component for determining the measurement information of the object to be measured based on the spatial coordinates.

11. The device according to claim 10, characterized in that, The spatial coordinate acquisition component is further used to remotely obtain the spatial coordinates of each positioning module by wireless means.

12. The device according to claim 10 or 11, characterized in that, The plurality of characteristic positions are positions that can reflect the shape characteristic information of the object to be measured.

13. The device according to claim 10 or 11, characterized in that, The positioning module can be used repeatedly.

14. The device according to claim 10 or 11, characterized in that, The spatial coordinate acquisition component is further used to obtain the spatial coordinates of each positioning module by contacting the positioning module, and / or obtain the spatial coordinates of each characteristic position by contacting the characteristic position.

15. The device according to claim 10 or 11, characterized in that The positioning module placement component is further used to automatically place or manually place the positioning module by an automatic placement device.

16. The device according to claim 10 or 11, characterized in that, The measurement information of the object to be measured includes the shape characteristics and size information of the object to be measured.

17. The device according to claim 16, characterized in that, It further includes, A shape characteristic acquisition component for manually inputting the shape characteristics of the object to be measured or scanning the contour of the object to be measured to determine the shape characteristics of the object to be measured.

18. The device according to claim 10 or 11, characterized in that, It further includes, A spatial coordinate judgment component for confirming whether the spatial coordinates meet the measurement requirements.

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