Radar-based position service system construction method and system

Abstract

The invention discloses a radar-based position service system construction method and a radar-based position service system construction system. According to the invention, the characteristics of the millimeter-wave radar are utilized, and general acquisition of spatial information data is converted into acquisition of movement information of the marker. According to the technical scheme, house type image data does not need to be collected in advance, the position of the radar sensor does not need to be considered in the installation link, whole-house human body positioning can be achieved only through detection data of the radar and simple operation of an operator on a generation area after installation, and position information of the human body in a whole-house coordinate system is obtained; and the use convenience of multi-radar cooperative whole-house human body positioning is improved.

Description

Technical Field

[0001] The present invention relates to the field of smart home appliances, and more specifically, to a radar-based location service system construction method and system. Background Art

[0002] Millimeter-wave radar sensors are not affected by light or temperature, and can track and locate people in space in a non-contact, non-sensing, and real-time manner, while avoiding privacy issues. This provides a new technical means to enrich and enhance the smart home experience. Using radar sensors to detect the position of people in the home environment in the whole-house coordinate system can provide users with a more accurate, comfortable, and personalized smart home scene experience. However, due to the sensor detection range and wall occlusion, it is usually necessary to deploy radar sensors in every room in the home, which requires the coordination of multiple radars in the whole house to realize the user's location service in the whole house coordinate system. For example, by coordinating the radar detection data of room A and room B, the user's activity trajectory and position across rooms from A to B can be obtained.

[0003] Conventional multi-radar collaborative whole-house human positioning methods require the collection of floor plan data and the distinction of different areas in the floor plan, such as the living room TV viewing area, the dining area, etc. Only after the area division can the sensor identify the specific location of the person in the room. Currently, there is no relatively simple way to implement area division, which poses a serious challenge to the ease of use of the product. Summary of the invention

[0004] The present invention overcomes the shortcomings of the prior art multi-radar positioning method in that the collection of house type maps is relatively complicated, and provides a radar-based location service system construction method and system, in the hope of solving the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a method for constructing a radar-based location service system.

[0006] A method for constructing a radar-based location service system comprises the following steps:

[0007] Install radar in the space to ensure that the radar's detection range can cover the entire space;

[0008] Use the marker to move along the boundary of the area to be divided in the space;

[0009] The radar collects the moving trajectory or moving endpoint of the marker and sends the trajectory information to the processing system;

[0010] The processing system generates an area based on the movement trajectory or the movement endpoint.

[0011] Millimeter wave radar is more sensitive to the movement of objects in space and collects movement data more accurately. The present invention utilizes the characteristics of millimeter wave radar to convert the general spatial information data collection into the movement information collection of markers. On the one hand, the spatial information converted by this method is more accurate; on the other hand, this method can adjust the generated area by adjusting the trajectory and endpoints of the markers, thereby realizing the division of areas without physical boundaries such as dining areas and movie viewing areas.

[0012] A further technical solution is that the movement along the boundary of the area to be divided includes moving along the outer boundary of the area and the boundary of a designated object.

[0013] When dividing the area, some areas are a range, while some areas exist in the form of an edge, such as the entrance of a room and an installed window. When the area is a range, just move along the outer boundary of the area; when the area is an edge, just move from one end of the edge to the other, that is, the boundary of the specified object.

[0014] A further technical solution is that the marker is an operator.

[0015] When the operator acts as a marker, he only needs to move according to the area boundary. The movement is performed by the operator and timely adjustments can be made to ensure accurate results.

[0016] A further technical solution is that after the processing device generates an area according to the movement trajectory or the movement endpoint, the following operations are performed:

[0017] The processing system transmits the plurality of generated area information to the operation terminal;

[0018] The regional information is moved and merged in the operation terminal;

[0019] The operation terminal generates the moved and merged areas.

[0020] Since one radar can only collect and generate information for one space, a single radar cannot generate the entire room area when facing a house composed of multiple spaces. Even after multiple room areas are generated by multiple radars, the floor plan of the entire room cannot be formed. Therefore, by moving and merging in the operation terminal, the area of ​​the multi-space house can be finally formed to facilitate the radar to collect information for the entire house area.

[0021] A further technical solution is to perform the following operations after the region is generated:

[0022] The radar collects information about objects and movement in space, and transmits the collected object information and / or movement information to a computing system;

[0023] The computing system processes the object information and / or movement information collected by the radar and maps it to the generation area to obtain the object information and / or movement information in the generation area.

[0024] The generation area must ultimately collect object information and / or movement information to achieve linkage with other smart furniture.

[0025] Another aspect of the present invention provides a radar-based location service system, comprising a radar, a marker, and a processing system;

[0026] The radar is used to collect object information and / or movement information in space;

[0027] The marker is used to move in space;

[0028] The processing system is used to generate an area according to a moving trajectory or a moving endpoint.

[0029] A further technical solution is that the location service system further includes an operation terminal and a computing system;

[0030] The operation terminal is used to move and merge the regional information;

[0031] The computing system is used to process the object information and / or movement information collected by the radar, and map it to the generation area to obtain the object information and / or movement information in the generation area.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects: the present invention utilizes the characteristics of millimeter wave radar to convert the general spatial information data collection into the mobile information collection of the marker. This technical solution does not require the collection of house plan data in advance, nor does it require the location of the radar sensor to be considered during the installation process. It only requires the use of the radar's own detection data and the operator's simple operation of the generated area after installation to achieve the whole house human body positioning, and obtain the human body's position information in the whole house coordinate system, which improves the convenience of using multi-radar collaborative whole house human body positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a flow chart of Example 1;

[0034] Figure 2 This is a schematic diagram of the installation points of the whole house radar sensor;

[0035] Figure 3 A schematic diagram of the area boundary and its gate information obtained by the radar;

[0036] Figure 4 This is a schematic diagram of room boundary stitching. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] Embodiment 1

[0039] A method for constructing a radar-based location service system comprises the following steps:

[0040] S1: Install the radar in the space to ensure that the radar's detection range can cover the entire space;

[0041] It should be noted that the space may be a room indoors, a part of a room, or an outdoor area. As long as the space can be covered by the radar, the area can be generated.

[0042] In this embodiment, see Figure 2 The space that needs to generate the area is the living room, dining room, bedroom B and bathroom in a house. Although there is no barrier between the dining room and the living room, one radar is used for coverage and collection in the dining room and the living room respectively, so the dining room and the living room are two spaces.

[0043] A radar is installed in the above-mentioned space of the house. The radar installation point is located at the dot where the arrow starts in the figure. The arrow and shadow next to the dot indicate the direction of the radar antenna.

[0044] S2: Use the marker to move along the boundary of the area to be divided in the space;

[0045] In this embodiment, the marker is an operator.

[0046] S3: The radar collects the moving trajectory or moving endpoint of the marker and sends the trajectory information to the processing system;

[0047] The specific steps are as follows: after completing the radar installation, the operator establishes a connection and communication with the radar through the corresponding control terminal via wireless methods such as WiFi or Bluetooth, and the control terminal can receive and send data to the radar in real time.

[0048] Before starting to move, the operator selects "Start" on the control terminal. When the operator starts to move, the radar starts to collect the operator's movement trajectory and draw the boundary.

[0049] The operator's movement trajectory is determined by the type of area to be divided. When the area is a range, the operator walks along the boundary of the range. When the operator moves and turns, the control terminal marks the collected human body position at the turning point as the room movement endpoint.

[0050] When the region is in the form of an edge, the operator moves along the boundary of the specified object.

[0051] Taking the door shared by the living room and bedroom B as an example, the operator walks back and forth on the boundary where the door is located and marks the two end points of the line segment corresponding to the door on the control terminal as the end points of the door. After the door end point position data is marked, the control terminal uses these two end points to generate the corresponding door area information on the boundary between the living room and bedroom B.

[0052] S4: The processing system generates an area according to the moving trajectory or the moving endpoint.

[0053] After the operator completes the movement at the boundary of the area and the radar completes the trajectory or endpoint collection and sends it to the control terminal, the processing system of the control terminal generates an area based on the movement trajectory or movement endpoint.

[0054] It should be noted that the region can be generated using the trajectory and / or the endpoint. When generating the region, the operator can choose to generate it based on the trajectory and / or the endpoint.

[0055] If a rectangular area is generated by collecting endpoints, the operator only needs to turn at the four endpoints of the rectangle, and the operator does not necessarily move along the boundary of the rectangle.

[0056] It should be understood that the area generated by the above method can be the room itself, or a certain area in the room, such as generating a dining area in a restaurant.

[0057] See also Figure 3 ,The area generation diagram of the living room, dining room, bedroom B, and bathroom includes both the areas generated along the room boundaries and the areas generated within the rooms.

[0058] S5: The processing system transmits the multiple generation area information to the operation terminal;

[0059] S6: The regional information is moved and merged in the operation terminal;

[0060] Since the generated area information only contains the information that the radar can collect, that is, the areas collected by different radars cannot be automatically combined and matched, the operator needs to manually drag or translate and rotate the boundaries of each room on the operation terminal according to the positional relationship between the rooms to form a floor plan. Based on translation and rotation, the plane rectangular coordinate system data of each radar itself is converted into the same whole-house rectangular coordinate system data, which can be achieved using conventional plane analytical geometry coordinate system conversion methods.

[0061] The rectangular coordinate system data of the whole house formed by splicing the living room, dining room, bedroom B and bathroom can be found in Figure 4 .

[0062] S7: The operating terminal generates the moved and merged area.

[0063] In this embodiment, the floor plan includes a living room, a dining room, a bedroom B and a bathroom.

[0064] S8: The radar collects object information and movement information in the space, and transmits the collected object information and / or movement information to the computing system;

[0065] S9: The computing system processes the object information and / or movement information collected by the radar, and maps it to the generation area to obtain the object information and / or movement information in the generation area.

[0066] Since the coordinate mapping parameters of each radar data are determined and stored in the operation terminal, the object information and / or movement information detected by each subsequent radar is coordinate mapped according to this parameter in the operation terminal, forming data in the whole house coordinate system and displayed in real time on the APP.

[0067] Embodiment 2

[0068] A radar-based location service system, comprising a radar, a marker, a processing system, an operation terminal, and a computing system;

[0069] The radar is used to collect object information and / or movement information in space;

[0070] The marker is used to move in space;

[0071] The processing system is used to generate an area according to a moving trajectory or a moving endpoint.

[0072] The operation terminal is used to move and merge the regional information;

[0073] The computing system is used to process the object information and / or movement information collected by the radar, and map it to the generation area to obtain the object information and / or movement information in the generation area.

[0074] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope disclosed in the present application, multiple variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A method for constructing a radar-based location service system, characterized in that: The following steps are involved: Install radar in the space to ensure that the radar's detection range can cover the entire space; Use the marker to move along the boundary of the area to be divided in the space; The radar collects the moving trajectory or moving endpoint of the marker and sends the trajectory information to the processing system; The processing system generates an area based on the movement trajectory or the movement endpoint.

2. A method for constructing a radar-based location service system as claimed in claim 1, characterized in that: The moving along the boundary of the area to be divided includes moving along the outer boundary of the area and the boundary of a designated object.

3. The method for constructing a radar-based location service system according to claim 1, characterized in that: The marker is an operator.

4. The method for constructing a radar-based location service system according to claim 1, characterized in that: After the processing device generates an area according to the moving trajectory or the moving endpoint, the following operations are performed: The processing system transmits the plurality of generated area information to the operation terminal; The regional information is moved and merged in the operation terminal; The operation terminal generates the moved and merged areas.

5. A method for constructing a radar-based location service system according to any one of claim 1 or claim 4, characterized in that: After the region is generated, do the following: The radar collects information about objects and movement in space, and transmits the collected object information and / or movement information to a computing system; The computing system processes the object information and / or movement information collected by the radar and maps it to the generation area to obtain the object information and / or movement information in the generation area.

6. A radar-based location service system, characterized in that: Including radar, markers, and processing systems; The radar is used to collect object information and / or movement information in space; The marker is used to move in space; The processing system is used to generate an area according to a moving trajectory or a moving endpoint.

7. A radar-based location service system as claimed in claim 6, characterized in that: Also includes, operating terminals, computing systems; The operation terminal is used to move and merge the regional information; The computing system is used to process the object information and / or movement information collected by the radar, and map it to the generation area to obtain the object information and / or movement information in the generation area.

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