Modeling system, projection system, and modeling method

Abstract

The application provides a modeling system, comprising a modeling instrument and a position marker. An adjustable support of the modeling instrument is used to drive a ranging sensor towards any plane of a space to be measured in response to a first instruction of a controller. The ranging sensor of the modeling instrument is used to emit a ranging signal to any plane and receive a feedback signal of the ranging signal in response to a second instruction of the controller. The controller of the modeling instrument is used to construct a point cloud model of the space to be measured based on the feedback signal. The position marker is placed at a first position and is used to store a corresponding relationship between information of the first position and a point cloud model of the first position. The modeling system can construct a corresponding relationship between a point cloud model and a placed position, store the corresponding relationship in the position marker, provide the point cloud model for a projector placed at the position, and achieve the purpose of configuring a space model for the projector following the position of the projector.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic information, and in particular to a modeling system, a projection system and a modeling method. BACKGROUND

[0002] A projector is a common electronic device. At present, there is a high demand for the mobility of the projector, that is, the projector can be placed in different positions. For example, the projector can be placed in a living room for projection, or can be moved from the living room to a bedroom for projection.

[0003] After the position of the projector is changed, in order to enable the projector to project with appropriate projection parameters, such as projection distance and focal length, the space model configured in the projector needs to be modified.

[0004] Therefore, how to configure a space model for the projector following the position of the projector becomes a problem to be solved. SUMMARY

[0005] The present application provides a modeling system, a projection system and a modeling method, aiming to solve the problem of how to configure a space model for the projector following the position of the projector.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] A modeling system comprises:

[0008] a modeling instrument and a position marker;

[0009] The modeling instrument comprises a distance measuring sensor, an adjustable support supporting the distance measuring sensor, and a controller; the controller is connected with the distance measuring sensor, the adjustable support and the position marker data;

[0010] The adjustable support is used to drive the distance measuring sensor towards any plane of a to-be-measured space in response to a first instruction of the controller;

[0011] The distance measuring sensor is used to emit a distance measuring signal to the any plane and receive a feedback signal of the distance measuring signal in response to a second instruction of the controller;

[0012] The controller is used to construct a point cloud model of the to-be-measured space based on the feedback signal;

[0013] The position marker is placed at a first position and is used to store a corresponding relationship, the corresponding relationship comprising a corresponding relationship between information of the first position and a target point cloud model, the target point cloud model being the point cloud model constructed by the modeling instrument placed at the first position.

[0014] Optionally, the adjustable support comprises:

[0015] a support table for supporting the ranging sensor;

[0016] a horizontal adjustment motor for driving the support table to rotate in a horizontal plane;

[0017] a vertical adjustment motor for driving the support table to rotate in a vertical plane;

[0018] a support connecting the horizontal adjustment motor and the vertical adjustment motor.

[0019] Optionally, the adjustable support further comprises:

[0020] a height adjustment assembly for adjusting the height of the support table.

[0021] Optionally, the adjustable support further comprises a base plate.

[0022] Optionally, the modeling instrument further comprises:

[0023] a first radio frequency circuit connected to the controller.

[0024] Optionally, the position marker comprises:

[0025] a coil and a radio frequency chip connected thereto;

[0026] the coil is configured to generate a current for powering the radio frequency chip in response to an electromagnetic wave sent by the first radio frequency circuit;

[0027] the radio frequency chip is configured to store the correspondence.

[0028] Optionally, the modeling instrument further comprises:

[0029] a second radio frequency circuit disposed on a device applying the correspondence, and configured to read the correspondence from the position marker.

[0030] Optionally, the modeling instrument further comprises:

[0031] a cloud server configured to calculate data according to the correspondence, and send the data to a device applying the data.

[0032] A projection system comprises:

[0033] a projector and the modeling system described above;

[0034] the projector is configured to receive data, and project a projection picture according to the data; wherein the data is obtained according to a correspondence between a placement position of the projector and a point cloud model obtained by the modeling system, or the data is the correspondence.

[0035] A modeling method applied to the controller of the modeling instrument, the method comprising:

[0036] in response to the first control information, sending a first instruction instructing the ranging sensor to face any plane of the space to be measured;

[0037] in response to the second control information, sending a second instruction instructing the ranging sensor to emit a ranging signal to the any plane and receive a feedback signal of the ranging signal;

[0038] based on the feedback signal, constructing a point cloud model of the space to be measured;

[0039] at least sending the point cloud model to a radio frequency device placed at the first position.

[0040] The modeling system disclosed in the present application comprises a projector and a position marker. The modeling instrument comprises a ranging sensor, an adjustable support supporting the ranging sensor, and a controller. The adjustable support is used to drive the ranging sensor to face any plane of the space to be measured in response to the first instruction of the controller, the ranging sensor is used to emit a ranging signal to the any plane and receive a feedback signal of the ranging signal in response to the second instruction of the controller, and the controller is used to construct a point cloud model of the space to be measured based on the feedback signal. The position marker is placed at the first position and is used to store the correspondence between the information of the first position and the target point cloud model, wherein the target point cloud model is the point cloud model constructed by the modeling instrument when placed at the first position. It can be seen that the modeling system can construct the correspondence between the point cloud model of the position where the modeling instrument is placed and the position, and store the correspondence in the position marker of the position where the modeling instrument is placed. The projector in the projection system can obtain the point cloud model of the position where the modeling instrument is placed, thereby achieving the purpose of configuring a space model for the projector following the position of the projector. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0042] Figure 1 A structural schematic diagram of a modeling system disclosed in an embodiment of the present application;

[0043] Figure 2 A structural schematic diagram of another modeling system disclosed in an embodiment of the present application;

[0044] Figure 3A structural schematic diagram of another modeling system disclosed by the embodiments of the present application;

[0045] Figure 4 A structural schematic diagram of a projection system disclosed by the embodiments of the present application;

[0046] Figure 5 A flowchart of a controller of a modeling instrument in a modeling system disclosed by the embodiments of the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] Figure 1 A modeling system disclosed by the embodiments of the present application comprises a modeling instrument 1 and a position marker 2, wherein the modeling instrument 1 comprises a distance measuring sensor 11, an adjustable support 12, and a controller 13.

[0049] The adjustable support 12 is used for supporting the distance measuring sensor 11. The controller 13 is connected with the distance measuring sensor 11, the adjustable support 12, and the position marker 2.

[0050] The adjustable support 12 is used for driving the distance measuring sensor 11 to face any plane of a space to be measured in response to a first instruction of the controller 13. The distance measuring sensor 11 is used for emitting a distance measuring signal to any plane and receiving a feedback signal of the distance measuring signal in response to a second instruction of the controller 13. The controller 13 is used for constructing a point cloud model of the space to be measured based on the feedback signal.

[0051] The position marker 2 is placed at a first position, and information of the first position, such as coordinates of the first position or a serial number of the first position, is stored in the position marker 2. It can be understood that after the position marker 2 is placed at the first position, the information of the first position can be written into the position marker 2 in various ways.

[0052] The data interaction process between the modeling instrument 1 and the position marker 2 is as follows:

[0053] After the modeling instrument 1 is placed at the first position, the position marker 2 at the first position sends position information, and the modeling instrument 1 acquires a point cloud model of the first position by the foregoing method, and transmits a corresponding relationship between the information of the first position and the point cloud model to the position marker 2 at the first position. The position marker 2 at the first position stores the received corresponding relationship.

[0054] Alternatively, after the modeling instrument 1 is placed at the first position, the modeling instrument 1 can not receive the information of the first position, and after the point cloud model at the first position is acquired, the point cloud model is transmitted to the position marker 2 at the first position. The position marker 2 at the first position has stored the information of the first position, and further stores the received point cloud model, that is, the correspondence between the information of the first position and the point cloud model is acquired.

[0055] It can be understood that the number of position markers 2 can be one or more.

[0056] Figure 1 An example of a specific application scenario of the modeling system shown for constructing a model and a corresponding relationship is as follows:

[0057] The modeling instrument 1 is placed at a position where a position marker 2 is placed in the space to be measured, that is, a first position. The controller 13 responds to the starting operation of the user to send a first instruction to the adjustable support 12 to control the adjustable support 12 to act to drive the distance measuring sensor 11 to face any plane of the space to be measured. After the action of the adjustable support 12 is completed, the controller 13 sends a second instruction to the distance measuring sensor 11 to control the distance measuring sensor 11 to send a ranging signal to the plane currently facing and receive a feedback signal of the ranging signal. The controller 13 constructs a point cloud model of the space to be measured based on the feedback signal. The modeling instrument 1 further transmits at least the point cloud model to the position marker 2 at the first position according to the above-mentioned manner, so that the position marker 2 at the first position stores the correspondence between the information of the first position and the point cloud model constructed at the first position. At this time, the point cloud model with the position marker 2 at the first position as a reference point exists in the position marker 2 at the first position. Because the position marker 2 has a communication function, the point cloud model of the reference point can be sent to the equipment placed at the first position, so that the equipment realizes various services by using the point cloud model of the reference point.

[0058] For example, the equipment that realizes services by using the point cloud model is a projector. The projector projects at any position, and needs to acquire a point cloud model with the position as a reference point. Therefore, the position marker 2 can be arranged at each position where the projector can be placed in the projection space, and the modeling instrument 1 described in the embodiment is placed at each position marker 2 in turn to acquire the corresponding relationship at each position marker 2 and write into each position marker 2. In the use process of the projector, once the projector is placed at any one of the position markers 2, the corresponding relationship can be acquired from the position marker 2 at this position, so that the projection plane, projection distance, focal length and other parameters at this position are calculated according to the point cloud model at this position, and thus the projection picture matched with this position is projected.

[0059] Alternatively, the corresponding relationship can be pre-stored in the projector by some means (network transmission, or hard disk transmission, etc.), the projector is placed at any one position marker 2, then the position information at this position can be obtained from the position marker 2, and according to the position information and the pre-stored corresponding relationship, the point cloud model at this position is determined, so as to further calculate the projection plane, the projection distance, and the focal length and other parameters at this position, thereby projecting the projection picture matched with this position.

[0060] It can be seen that, Figure 1 The modeling instrument 1 shown can achieve the purpose of configuring a spatial model for the device according to the position of the device.

[0061] It can be understood that the projector is only an example of the device, but is not limited thereto.

[0062] The modeling system shown will be described in more detail below. Figure 1 The modeling system shown will be described in more detail below.

[0063] Figure 2 Another modeling system disclosed in the embodiments of the present application comprises a laser ranging sensor 111, an adjustable support 12, a controller 13 (not shown in the figure), an input / output component 14, a position marker 21, and a first radio frequency circuit 15 (not shown in the figure). Figure 2 Figure 2

[0064] The laser ranging sensor 111 is an example of the ranging sensor 11. Optionally, in addition to the laser ranging sensor 111, the ranging sensor 11 can also be other types of ranging sensors, which are not limited herein.

[0065] The specific structure of the adjustable support 12 comprises a support table 121, a horizontal adjustment motor 122, a vertical adjustment motor 123, a height adjustment component 124, a chassis 125, and an L-shaped support 126.

[0066] Optionally, the support table 121 can be connected to the vertical adjustment motor 123 through but not limited to a flat key structure. It can be understood that the connecting component allows the support table 121 to have enough space to rotate in the vertical plane.

[0067] The horizontal adjustment motor 122 and the vertical adjustment motor 123 are connected through the L-shaped support 126. It can be understood that the L-shaped is only an example, but is not limited thereto.

[0068] The adjustable component of the height adjustment component 124 is connected to the rotating shaft of the horizontal adjustment motor 122. The specific structure of the height adjustment component 124 can refer to the prior art, which is not described herein.

[0069] ​​The fixed component of the height adjustment assembly 124 is fixed to the chassis 125. Relative movement occurs between the adjustable component and the fixed component of the height adjustment assembly 124, enabling height adjustment.

[0070] Based on the specific structure of the adjustable bracket 12, the adjustable bracket 12 can achieve free rotation in the horizontal plane, free rotation in the vertical plane, and height adjustment. Therefore, it can drive the support platform 121, and thus drive the laser rangefinder 111 to face any plane.

[0071] The controller 13 can be installed in the support platform 121 or in the L-shaped bracket 126; there is no limitation here.

[0072] Figure 2 In this modeling device 1, the input / output component 14 is part of the modeling device 1. One example is a touch screen display, used to receive input information and display information. It is understood that the user can perform a start operation via the touch screen display to trigger the modeling device 1 to start the modeling process. Figure 2 In this example, the input / output component 14 is set in the support platform 121.

[0073] The position marker piece 21 is one example of the position marker 2. It is understood that the position marker 2 can also be other shapes besides a sheet. Optionally, the position marker piece 21 may be provided with an adhesive strip or other object for fixing the position marker piece 21 at the placement location.

[0074] In this embodiment, the projector 1 and the location marker 2 can communicate via radio frequency.

[0075] Specifically, the first radio frequency circuit 15 in the projector 1 can be set in, but is not limited to, the chassis 125.

[0076] Position marker 21 specifically includes a coil and an RF chip ( Figure 2 (Not shown in the diagram) In this circuit, the coil responds to the electromagnetic waves emitted by the first radio frequency circuit 15, generating a current to power the radio frequency chip. The radio frequency chip is used to receive and store the aforementioned correspondence. It can be understood that the projector 1 and the position marker 21 can communicate through the first radio frequency circuit 15 and the radio frequency chip. Specifically, the controller 13 triggers the first radio frequency circuit 15 to transmit the data to be transmitted (correspondence or point cloud model) to the radio frequency chip.

[0077] Optional, such as Figure 3 As shown, Figure 1 as well as Figure 2The modeling system shown can also include a second radio frequency circuit 3. The second radio frequency circuit 3 is arranged on a device, such as the projector mentioned above, which applies the correspondence obtained by the modeling instrument, and is used to read the correspondence from the position marker 2 when the position marker 2 is within the communication range of the position marker 2. Specifically, the second radio frequency circuit 3 sends electromagnetic waves to the coil in the position marker 2 to generate a current to power the radio frequency chip, and the radio frequency chip transmits the stored correspondence or information about the position of the position marker 2 to the second radio frequency circuit 3. As mentioned above, when the device, such as the projector, receives the position information, it determines the point cloud model at this position according to the position information and the pre-stored correspondence.

[0078] Optionally, as shown in Figure 3 Figure 1 and Figure 2 The modeling system shown can also include a cloud server 4, which is used to calculate data according to the correspondence and send the data to a device, such as a projector, that applies the data. It can be understood that the controller 13 of the modeling instrument 1 sends the correspondence to the cloud server 4.

[0079] For example, the cloud server 4 can calculate the data as follows: establish a vector for the point cloud model and identify the angle of the vector to find a larger plane, intersect the larger plane with the projection area to obtain a light spot, and determine the trapezoidal correction amount, and obtain the focal length by measuring the distance. Further, the cloud server 4 can also calculate the adjustment steps of the focusing motor, the trapezoidal correction amount of the projection picture, and the motor rotation angle of the bearing bracket of the projector when aligning the selected plane, etc.

[0080] Because the calculation of data based on the point cloud model has high requirements on the hardware of the projector, the specific calculation process is performed in the cloud server 4, and the cloud server 4 outputs the data to the projector, and the projector performs the operation, which can effectively reduce the hardware requirements of the projector itself and has the effect of reducing the cost.

[0081] It can be understood that in the case of setting the cloud server 4, the second radio frequency circuit 3 on the device can only obtain the position of the position marker 2 and send the position to the cloud server 4, and the cloud server 4 sends the data required at the position to the device.

[0082] In summary, Figure 3 The modeling system shown not only can adapt to the location of the device to provide a matching model, but also can reduce the cost of the device.

[0083] The working principle of the system composed of the above modeling instrument and the projector will be described in detail below.

[0084] Figure 4 A projection system disclosed in an embodiment of the present application, comprising: a modeling instrument a, a position marker (​Figure 4 The modeling instrument a and the projector b are not shown in the figure. The structure of the modeling instrument a can be referred to the modeling instrument 1 shown in Figure 1 、 Figure 2 or Figure 3 The modeling instrument 1 shown in the figure. The second radio frequency circuit 3 is arranged on the projector b.

[0085] Figure 4 The flowchart of the projection process implemented by the projection system shown in the figure is as follows:

[0086] 1. Assuming that the user needs to use the projector in the living room and the bedroom, the user needs to set the position marker 2 on the position where the projector is placed when the user uses the projector.

[0087] 2. For any one position marker 2, the modeling instrument a is placed at the position marker 2, and the controller 3 of the modeling instrument a is triggered to execute the flowchart shown in Figure 5 by inputting control information on the touch display screen of the modeling instrument a.

[0088] S51. The first position information of the position marker 2 where the modeling instrument a is placed is received by the first radio frequency circuit 15.

[0089] The first position information is the information of the position where the modeling instrument a is placed. As described above, the first radio frequency circuit in the modeling instrument a sends electromagnetic waves, the position marker 2 sends the first position information to the modeling instrument a in response to the electromagnetic waves, and the first radio frequency circuit of the modeling instrument a sends the first position information to the controller 13 after receiving the first position information.

[0090] It can be understood that S51 is an optional step as described above.

[0091] S52. The first instruction is sent in response to the first control information.

[0092] The first control information can be control information generated in response to the instruction information input by the user on the touch display screen. Specifically, the first control information can be the model information of the projector b, etc.

[0093] In this step, the first instruction indicates that the distance measuring sensor is directed to any plane of the space to be measured (the living room or the bedroom).

[0094] Therefore, specifically, in order to achieve the above function, the first instruction can specifically indicate that the adjustable support 12 is adjusted to a height matched with the projector b, and indicate that the motor in the adjustable support 12 is rotated by a certain angle.

[0095] It can be understood that the correspondence between the height matched with the projector b and the model information of the projector b can be pre-stored in the modeling instrument a. The height adjustment is only one means to improve the model accuracy, and the first instruction can not indicate the height adjustment, which is not limited here.

[0096] S53, in response to the second control information, sending the second instruction.

[0097] The second control information can be the feedback information that the action of adjusting the support 12 is completed, that is, the support 12 has completed the action indicated by the first instruction.

[0098] The second instruction instructs the ranging sensor 11 to emit a ranging signal and receive a feedback signal of the ranging signal. It can be understood that S52 and S53 can be iteratively executed to obtain the feedback signals of all planes.

[0099] S54, constructing a point cloud model of the space to be measured based on the feedback signal.

[0100] S55, establishing a correspondence between the point cloud model and the information of the first position.

[0101] S56, sending the correspondence to the position marker 2 at the current position through the first radio frequency circuit 15.

[0102] It can be understood that S55 is an optional step, and in the case of not performing S55, the point cloud model constructed in S54 is sent to the position marker 2 at the current position.

[0103] 3, the modeling instrument a is placed at all position markers 2 in turn, and the process in 2 is executed, that is, the correspondence between the position of each position marker 2 and the point cloud model can be obtained, and the corresponding point cloud model is written in each position marker 2.

[0104] 5, the controller can send the correspondence between the position of each position marker 2 and the point cloud model to the cloud server 4.

[0105] The above process can be regarded as a modeling process before the projector b is applied, that is, a preprocessing process. Because the modeling instrument a and the projector b are separately arranged, and the modeling process can be performed by the customer service personnel of the projector b, therefore, the user does not need to purchase, so as to reduce the cost of the user to purchase the projection service.

[0106] 6、User can mark the position of projector b at any position. After the projector b is placed, the corresponding relationship can be read from the position marker 2, and the projection parameter is generated according to the corresponding relationship, and the projection picture is projected using the projection parameter. Or, after the projector 2 is placed, the position information of the position marker 2 can be read from the position marker 2, and then the position information is sent to the cloud server 4, and the projection parameter generated according to the corresponding relationship is received from the cloud server 4, and the projection picture is projected using the projection parameter.

[0107] It can be seen that, Figure 4 The projection system shown can achieve the purpose of updating the projection parameter according to the placement position of the projector, and the use cost of the user will not be significantly increased.

[0108] The functions described in the method of the embodiments of the present application can be realized in the form of software function units and sold or used as independent products if the functions are realized in the form of software function units and sold or used as independent products. Based on such understanding, the part of the prior art or the part of the technical solution of the embodiments of the present application can be embodied in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for causing a computing device (which can be a personal computer, a server, a mobile computing device or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The storage medium mentioned above includes a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk and various storage medium capable of storing program codes.

[0109] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0110] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modeling system, characterized by, The application relates to a modeling system and a modeling method. The modeling system comprises a modeling instrument and a position marker. The modeling instrument comprises a distance measuring sensor, an adjustable support supporting the distance measuring sensor, and a controller; the controller is connected with the distance measuring sensor, the adjustable support and the position marker. The adjustable support is used for driving the distance measuring sensor to face any plane of a space to be measured in response to a first instruction of the controller. The distance measuring sensor is used for transmitting a distance measuring signal to the any plane and receiving a feedback signal of the distance measuring signal in response to a second instruction of the controller. The controller is used for constructing a point cloud model of the space to be measured based on the feedback signal. The position marker is placed at a first position and is used for storing a corresponding relationship, wherein the corresponding relationship comprises a corresponding relationship between information of the first position and a target point cloud model, and the target point cloud model is the point cloud model constructed by the modeling instrument placed at the first position. The modeling instrument is placed at each position marker in sequence, the corresponding relationship at each position marker is acquired, and the corresponding relationship is written into each position marker.

2. The modeling system of claim 1, wherein, The adjustable support comprises: a support table for supporting the distance measuring sensor; a horizontal adjusting motor for driving the support table to rotate in a horizontal plane; a vertical adjusting motor for driving the support table to rotate in a vertical plane; a support connecting the horizontal adjusting motor and the vertical adjusting motor.

3. The modeling system of claim 2, wherein, The adjustable support further comprises: a height adjusting assembly for adjusting the height of the support table.

4. The modeling system of claim 2, wherein, The adjustable support further comprises a chassis.

5. The modeling system of claim 1, wherein, The modeling instrument further comprises: a first radio frequency circuit connected with the controller.

6. The modeling system of claim 5, wherein, The position marker comprises: a coil and a radio frequency chip connected with each other; the coil is used for generating a current for powering the radio frequency chip in response to an electromagnetic wave transmitted by the first radio frequency circuit; the radio frequency chip is used for storing the corresponding relationship.

7. The modeling system of claim 1, wherein, The application further comprises: a second radio frequency circuit arranged on a device applying the corresponding relationship and used for reading the corresponding relationship from the position marker.

8. The modeling system of claim 1, wherein, The application further comprises: a cloud server used for calculating data according to the corresponding relationship and transmitting the data to a device applying the data.

9. A projection system, characterized by The application relates to a modeling system and a modeling method. The application relates to a modeling system and a modeling method. The application relates to a modeling system and a modeling method.

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The application relates to a modeling system and a modeling method. The application relates to a modeling system and a modeling method. The application relates to a modeling system and a modeling method

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