Expandable handheld radar device

Abstract

The utility model describes an extensible handheld radar equipment, including host computer, the host computer includes casing and sets up first detection module group on casing, the casing has the expansion unit for connecting external component, the expansion unit includes joint cavity and first data interface located on the inner wall of joint cavity, the expansion unit still includes the clasp spare of movable configuration in the accommodation cavity, the external component includes the inlaying part that matches with joint cavity, the clasp spare has the limiting portion that can act on inlaying part, the host computer and external component have the locked state and the unlocking state. This extensible handheld radar equipment can access the external component with the detection function through the introduction expansion unit on the host computer, so that the supplement or the strengthening of the host computer with surveying and mapping means is realized, the expansion unit can better adapt to small handheld host computer, and the clasp spare therein can ensure the dismounting convenience and the connection stability between the host computer and the external component.

Description

Technical Field

[0001] This utility model relates to the field of radar detection technology, and in particular to a scalable handheld radar device. Background Technology

[0002] With the widespread application of digital topographic maps, people have learned from the advantages of two-dimensional digital topographic map models and overcome the shortcomings of two-dimensional digital topographic maps in spatial representation and application, proposing many methods and tools for surveying and expressing three-dimensional spatial information.

[0003] Currently, mainstream equipment on the market is segmented based on target groups and functional positioning. Low-end equipment can meet the needs of users with low accuracy requirements, while high-end equipment offers more surveying methods and higher accuracy, making it more professional, but only suitable for users with high price tolerance. Therefore, there are currently no products on the market that can simultaneously meet the needs of both types of users. For example, existing mainstream handheld products are relatively low-end and are limited in terms of detection methods and accuracy. If such handheld devices were scalable and could be connected to high-precision detection modules, they could fill the market gap and meet the needs of high-end users. However, considering the small size and compact structure of handheld devices, it is difficult to make them expandable, and few manufacturers have developed related products. Utility Model Content

[0004] The main objective of this invention is to provide an expandable handheld radar device with scalability.

[0005] To achieve the above objectives, this utility model provides an expandable handheld radar device, including a main unit. The main unit includes a housing and a first detection module disposed on the housing. The key feature is that the housing has an extension for connecting an external component. The extension includes a mating cavity recessed on the first direction side of the housing and a first data interface disposed on the inner wall of the mating cavity. The mating cavity has a first sidewall and a second sidewall disposed opposite to each other in a second direction intersecting the first direction. The housing also includes a receiving cavity communicating with the mating cavity on one side of the second sidewall. The extension also includes a locking member movably disposed in the receiving cavity. The external component includes a fitting portion that cooperates with the mating cavity. The locking member has a limiting portion that can act on the fitting portion.

[0006] The host and the external component have a locked state and an unlocked state. In the locked state, both the fitting part and the limiting part are at least partially located in the engagement cavity, and in the second direction, the fitting part abuts against the first sidewall and the limiting part. In the unlocked state, the distance between the limiting part and the first sidewall in the second direction is not less than the distance between the first sidewall and the second sidewall.

[0007] As can be seen from the above scheme, the external component and the extension unit can be engaged in the first direction through a roughly matching fitting part and a connecting cavity. A movable locking member, in conjunction with the connecting cavity, can clamp the external component in the second direction, thereby achieving a mechanical connection and locking between the host and the external component, ensuring the stability of the connection. Furthermore, the extension unit is easy to miniaturize, requiring less space on the outside of the housing, making it well-suited for small handheld hosts. Moving the locking member allows switching between the locked and unlocked states of the host and the external component, ensuring ease of assembly and disassembly. The first data interface, located within the connecting cavity, is close to the connection point between the host and the external component, ensuring connection stability at the data port and thus ensuring stable communication between the external component and the host.

[0008] A further option is that the engaging component is a locking rod, which is hinged to the housing at the first end located in the accommodating cavity. The locking rod can rotate along a plane defined by the first and second directions. The limiting part is a protruding structure provided at the first end of the locking rod, and the housing is recessed in the area corresponding to the second end of the locking rod on the first direction side to provide a clearance part.

[0009] As can be seen from the above scheme, rotating the locking rod makes it easy for the limiting part to enter or exit the engagement cavity, and the clearance part can provide sufficient operating space for the user's hand. Therefore, using the locking rod as a locking element makes it easy to lock or unlock the main unit and the external components.

[0010] A further design includes a spacer between the accommodating cavity and the clearance portion, wherein the locking rod abuts against the spacer in the locked state.

[0011] As can be seen from the above scheme, the introduction of the interval can limit the locking bar in the locked state, preventing accidental unlocking between the main unit and the external components due to excessive rotation of the locking bar.

[0012] A further option is to have the first data interface located on the inner wall of the first direction side of the engagement cavity.

[0013] As can be seen from the above scheme, based on the configuration of the first data interface, during the process of the external component moving along the first direction to engage the fitting part with the accommodating cavity, the data connector of the external component and the first data interface can be connected simultaneously, thereby helping to simplify the connection steps between the host and the external component.

[0014] A further option is that the external component is a protective cover, the protective cover includes a cover body that covers the first data interface, the fitting part includes at least part of the cover body, and the surface of the cover body is flush with the surface of the housing in the first direction.

[0015] As can be seen from the above scheme, the protective cover is mainly used to protect the first data interface. As a protective accessory that comes with the host, the surface of the protective cover is flush with the corresponding side of the shell, which can fill the joint cavity and improve the appearance consistency of the various sides of the host.

[0016] A further option is that the external component is a main extension component with a second detection module. The main extension component has a first data connector on the surface of the mating part. In the locked state, the first data connector is engaged with the first data interface.

[0017] As can be seen from the above scheme, the main expansion component has detection capabilities and can communicate with the host via the first data connector. It can supplement or enhance the host's built-in surveying and mapping methods, thereby achieving multi-measurement integration. The main expansion component, as an add-on accessory that users can purchase later, does not significantly increase the overall size and weight of the device when installed on the host. Compared to purchasing a host with equivalent surveying and mapping performance separately, the cost is lower.

[0018] A further proposed solution is that the first and second detection modules include a radar module, and / or a three-dimensional scanning module, and / or a multispectral sensor module, and / or an infrared imaging module.

[0019] As can be seen from the above scheme, the main expansion component serves as a supplement or enhancement to the host detection method. The two modules can use the same type of detection modules with different detection accuracies, or they can use different types of detection modules. Both configuration modes help to improve the overall detection efficiency and detection accuracy of the equipment.

[0020] A further option is that the expandable handheld radar device also includes a secondary expansion component with a third detection module. The secondary expansion component also has a second data connector, and the housing is provided with a second data interface that mates with the second data connector.

[0021] As can be seen from the above scheme, the introduction of the secondary expansion component can also work in conjunction with the first detection module to improve the performance of the host. The secondary expansion component and the host need to communicate and connect through the second data connector and the second data interface. Therefore, the secondary expansion component has certain limitations in terms of weight and volume.

[0022] A further option is that the expandable handheld radar device also includes an external display extension that communicates with the host computer. The external display extension has a display module, and both the host computer and the external display extension have built-in wireless communication modules. The external display extension is detachably mounted on the housing.

[0023] As can be seen from the above solution, the external display extension can communicate with the host and provide real-time visual display of the surveying results, which facilitates users to perform simultaneous detection and monitoring operations, thereby helping to improve surveying efficiency.

[0024] A further option is that the scalable handheld radar device also includes a magnetic module configured on the external display extension and the main unit.

[0025] As can be seen from the above solutions, existing smartphones all have high-definition display modules and wireless communication modules, which can serve as external display extensions for handheld radar devices. Furthermore, smartphones with wireless charging capabilities all have built-in magnetic components. Therefore, setting up a magnetic module inside the host device is a relatively easy connection solution between it and the smartphone.

[0026] The expandable handheld radar device of this utility model can connect to external components with detection functions by introducing an extension part on the main unit, thereby supplementing or enhancing the mapping means built into the main unit. The extension part can be well adapted to small handheld main units, and the snap-fit ​​component can ensure the convenience of disassembly and assembly and the stability of connection between the main unit and the external components. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0029] Figure 1 This is a structural diagram of one embodiment of the expandable handheld radar device of this utility model.

[0030] Figure 2 This is an exploded view of the protective cover and main unit of the first embodiment of the expandable handheld radar device of this utility model.

[0031] Figure 3 This is a structural diagram showing the cooperation between the expansion part and the protective cover in Embodiment 1 of the expandable handheld radar device of this utility model.

[0032] Figure 4 This is an exploded view of the main unit in the expandable handheld radar device of this utility model.

[0033] Figure 5 This is a structural diagram of the first embodiment of the second embodiment of the scalable handheld radar device of this utility model.

[0034] Figure 6 This is a structural diagram of the cooperation between the expansion part and the main expansion component in the first embodiment of the second embodiment of the expandable handheld radar device of this utility model.

[0035] Figure 7 This is a structural diagram of the main expansion component in the first embodiment of the second example of the expandable handheld radar device of this utility model.

[0036] Figure 8 This is a structural diagram of the second embodiment of the expandable handheld radar device of this utility model.

[0037] Figure 9 This is a side view of the second embodiment of the scalable handheld radar device of this utility model.

[0038] Figure 10 This is an exploded view of the third embodiment of the second embodiment of the scalable handheld radar device of this utility model.

[0039] Figure 11 This is a structural diagram of Embodiment 3 of the expandable handheld radar device of this utility model.

[0040] Figure 12 This is an exploded view of the external display extension and the main unit in Embodiment 3 of the expandable handheld radar device of this utility model.

[0041] Figure 13 This is a structural diagram of Embodiment 4 of the scalable handheld radar device of this utility model.

[0042] Figure 14 This is a partial exploded view of Embodiment 4 of the scalable handheld radar device of this utility model.

[0043] Reference numerals: Main unit 100, housing 110, accommodating cavity 111, clearance portion 112, spacer portion 113, handle 114, magnetic module 115, second data interface 116, base 117, soft rubber cover 118, first detection module 120, first radar module 121, first optical lens 122, extension portion 130, connecting cavity 131, first sidewall 131a, second sidewall 131b, first data interface 132, limit The components include: control part 133, locking rod 134, external component 200, fitting part 210, boss 211, protective cover 200a, main extension part 200b, cover body 220, second detection module 230, second radar module 231, optical scanner 232, second optical lens 233, first data connector 240, external display extension part 300, display module 310, secondary extension part 400, third detection module 410, and support part 420. Detailed Implementation

[0044] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same components, and repeated descriptions are omitted. Furthermore, the drawings are merely schematic diagrams, and the proportions of the components or their shapes may differ from actual dimensions. It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0045] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0046] Given that the current market only offers low-end handheld devices for 3D spatial mapping, handheld devices with scalability and the ability to connect to high-precision detection modules can fill the market gap and meet the needs of high-end users. However, considering the small size and compact structure of handheld devices, it is difficult to make them expandable, and few manufacturers have developed related products.

[0047] See Figure 1-4 The expandable handheld radar device provided by this utility model includes a host 100, the host 100 includes a housing 110 and a first detection module 120 disposed on the housing 110, and the housing 110 has an extension portion 130 for connecting an external component 200.

[0048] A coordinate system (XYZ) is established with reference to host 100. The Z-axis is parallel to the height of host 100, and is defined here as parallel to the plumb line direction; specifically, the +Z-axis is defined as the opposite direction of the plumb line direction. The X and Y axes are orthogonal to the Z-axis, and can be two horizontally extending orthogonal directions. Here, the X-axis is defined as parallel to the length of host 100, and the Y-axis is defined as parallel to the width of host 100. Furthermore, the X-axis is defined as the first direction, and the Z-axis as the second direction.

[0049] The extension 130 includes a mating cavity 131 recessed in the +X direction side of the housing 110 and a first data interface 132 provided on the inner wall of the mating cavity 131. The mating cavity 131 has a first sidewall 131a and a second sidewall 131b disposed opposite to each other in the Z-axis direction. The housing 110 also includes a receiving cavity 111 communicating with the mating cavity 131 on the second sidewall 131b side. The extension 130 also includes a locking member movably disposed in the receiving cavity 111. The external member 200 includes a fitting portion 210 that cooperates with the mating cavity 131. The locking member has a limiting portion 133 that can act on the fitting portion 210.

[0050] The host 100 and the external component 200 have a locked state and an unlocked state. In the locked state, both the fitting part 210 and the limiting part 133 are at least partially located in the engagement cavity 131, and in the Z-axis direction, the fitting part 210 abuts against the first side wall 131a and the limiting part 133. In the unlocked state, the distance between the limiting part 133 and the first side wall 131a in the Z-axis direction is not less than the distance between the first side wall 131a and the second side wall 131b.

[0051] The external component 200 and the extension 130 can be engaged in the X-axis direction (i.e., the first direction) through the fitting part 210 and the engagement cavity 131, which are roughly matched in shape. The movable locking member can clamp the external component 200 in the Z-axis direction (i.e., the second direction) in cooperation with the engagement cavity 131, thereby realizing the mechanical connection and locking between the host 100 and the external component 200 and ensuring the connection stability between the two.

[0052] The extension section 130 is easy to miniaturize, thus requiring less space on the outside of the housing 110, making it more suitable for small handheld main units. The main unit 100 and the external component 200 can be switched between locked and unlocked states by moving the locking mechanism, thereby ensuring the ease of assembly and disassembly between the main unit 100 and the external component 200.

[0053] The first data interface 132, located in the engagement cavity 131, is close to the connection point between the host 100 and the external component 200, which can ensure the connection stability at the data port, thereby ensuring stable communication between the external component 200 and the host 100.

[0054] In all the embodiments mentioned below, a locking rod 134 is used as a locking member. The locking rod 134 is hinged to the housing 110 at the first end (corresponding to the +Z axis end) of the receiving cavity 111. The locking rod 134 can rotate along the XZ plane. The limiting part 133 is a protruding structure provided at the first end of the locking rod 134. The housing 110 is recessed in the area corresponding to the second end (corresponding to the -Z axis end) of the locking rod 134 on the X-axis side, and a clearance part 112 is provided.

[0055] Rotating the locking lever 134 facilitates the entry or exit of the limiting part 133 into the engagement cavity 131, and the clearance part 112 provides sufficient operating space for the user's hand. Therefore, using the locking lever 134 as a locking element facilitates locking or unlocking the main unit 100 and the external component 200.

[0056] The housing 110 also includes a spacer 113 disposed between the receiving cavity 111 and the clearance portion 112. In the locked state, the locking rod 134 abuts against the spacer 113. The spacer 113 is introduced to limit the locking rod 134 in the locked state, preventing accidental unlocking between the main unit 100 and the external component 200 due to excessive rotation of the locking rod 134.

[0057] The first data interface 132 is located on the inner wall of the X-axis direction of the engagement cavity 131. Therefore, during the process of the external component 200 moving along the X-axis direction to engage the fitting part 210 with the accommodating cavity 111, the data connector of the external component 200 and the first data interface 132 can be docked simultaneously, thereby helping to simplify the connection steps between the host 100 and the external component 200.

[0058] Considering the product positioning, the first detection module 120 integrated into the host 100 has relatively low requirements for detection accuracy. In the following embodiments, the first detection module 120 includes a first radar module 121 disposed on the +Z axis side of the housing 110, and also includes first optical lenses 122 disposed on opposite sides of the housing 110 in the Y axis direction (in combination with...). Figure 1 and Figure 11 The two first optical lenses 122 can have different functional orientations. For example, one can focus on capturing visual contour and texture information, while the other focuses on capturing environmental color information. The positions of the two first optical lenses 122 can be interchanged. The above is only one configuration example of the first detection module 120. Based on different host 100 design schemes and positioning, the first detection module 120 can also have other configuration options.

[0059] The housing 110 has a handle 114 on the -Z side for easy gripping and operation. The circuit system inside the main unit 100 also includes a main control module (not shown in the figure) electrically connected to the first detection module 120 and the first data interface 132. In addition, the main unit 100 also has a battery (not shown in the figure) to power the circuit system. The main control module and the battery can refer to conventional configurations in the art and are not limited here. Furthermore, the scalable handheld radar proposed in this utility model can be applied to the field of Simultaneous Localization and Mapping (SLAM).

[0060] See Figure 5In some embodiments, the end of the handle 114 may also be connected to a base 117 to stably place the main unit 100, to which the external component 200 is connected, on other objects, or to further achieve a fixed connection with other objects using the base 117. See Figure 2 In some embodiments, the fitting part 210 is provided with a boss 211 on the side near the limiting part 133 that can abut against the limiting part 133 in the locked state. The boss 211 has an arc surface that fits against the limiting part 133 in the locked state.

[0061] Example 1 See Figure 1-4 The scalable handheld radar device proposed in this embodiment conforms to the general description above in terms of its basic structure and the way it connects with the external component 200. In this embodiment, a protective cover 200a is used as the external component 200. The protective cover 200a includes a cover body 210 that shields the first data interface 112b. The fitting portion 210 includes at least a portion of the cover body 220, and the surface of the cover body 220 is flush with the +X axis direction side surface of the housing 110. The protective cover 200a is mainly used to protect the first data interface 112b. As a protective accessory included with the host 100, the flushness of the protective cover 200a surface with the corresponding side of the housing 110 fills the fitting cavity 112a, improving the appearance consistency of the various sides of the host 100.

[0062] When using the host 100 alone for surveying, there is no need to remove the protective cover 200a. The protective cover 200a is only required to be removed when an external component 200 with detection function is needed to expand the functionality.

[0063] Example 2 See Figure 5-10 The scalable handheld radar device proposed in this embodiment conforms to the general description above in terms of its basic structure and the way it connects with the external component 200. In this embodiment, the main expansion component 200b equipped with the second detection module 230 is used as the external component 200. The main expansion component 200b has a first data connector 240 on the surface of the fitting portion 210. In the locked state, the first data connector 240 engages with the first data interface 112b. Figure 5 The diagram shows the mating structure between the extension part 130 and the main extension part 200b in the locked state. Figure 5 The position and shape of the locking lever 134 in the unlocked state are also shown by dotted lines.

[0064] The main expansion component 200b has a detection function and can be connected to the main control module of the host 100 through the first data connector 240 to realize communication and interaction with the host 100 and be powered by the battery of the host 100. Therefore, it can be used as a supplement or enhancement to the surveying and mapping means built into the host 100 to realize multi-measurement integration.

[0065] The main expansion component 200b, as an optional expansion accessory that users can purchase later, does not significantly increase the overall size and weight of the device when installed on the main unit. Compared to purchasing a separate main unit with the same surveying performance as the main expansion component 200b, it is less expensive. Furthermore, since the main expansion component 200b moves along the same trajectory as the main unit 100 and can synchronize data in real time, it is more conducive to achieving multi-measurement integration. Considering that the main expansion component 200b is connected to the main unit 100 via the expansion section 130 and has good connection stability, the main expansion component 200b has relatively few limitations in terms of weight and size.

[0066] The configuration of the second detection module 230 is quite diverse, therefore this embodiment has multiple implementation forms, see [link to relevant documentation]. Figure 5-7 In this embodiment, a second radar module 231 is used as the second detection module 230 to enhance the detection capabilities of the host 100. Preferably, the second radar module 231 has higher detection accuracy than the first radar module 121. See also... Figure 8 , 9 In this embodiment, an optical scanner 232 is used as the second detection module 230. The optical scanner 232 can be a grating scanner or a spot scanner. The optical scanner 232 is used to enhance the optical detection performance of the host 100 and facilitate the modeling of small objects. Both grating scanners and spot scanners are not available in existing handheld radar devices, and both belong to the category of three-dimensional scanning modules.

[0067] See Figure 10 In this embodiment, a second optical lens 233 is used as the second detection module 230 to enhance the optical detection means of the host 100. Preferably, the second optical lens 233 has a higher resolution than the first optical lens 122. Furthermore, a filter 233a can be installed on the second optical lens 233 to improve its performance. Here, the filter 233a can be understood as an accessory of the second optical lens 233.

[0068] As can be seen from the above, the second detection module 230 in this embodiment can incorporate a detection module of the same type as the first detection module 120, or it can incorporate a detection module different from the first detection module 120. Both configuration modes help improve the overall detection efficiency and accuracy of the device. The above embodiments are only some configuration examples of the second detection module 230. Furthermore, both the first detection module 120 and the second detection module 230 can also be selected from other types of detection modules with relatively mature technology, such as multispectral sensor modules, infrared imaging modules, etc.

[0069] Example 3 See Figure 11 , 12This embodiment, based on Embodiment 2, further introduces an external display extension component 300 that communicates with the host 100. The external display extension component 300 includes a display module 310. Both the host 100 and the external display extension component 300 have built-in wireless communication modules (not shown in the figure). The external display extension component 300 is detachably mounted on the housing 110. In this embodiment, the external display extension component 300 is magnetically connected to the host 100, and the host 100 has a magnetic module 115 disposed on the -X-axis side of the housing 110. This embodiment uses a smartphone with wireless charging capability as the external display extension component 300, which has a magnetic component (not shown in the figure) that can act as a magnetic module.

[0070] The external display extension 300 can communicate with the host 100 and provide real-time visual display of the surveying results, facilitating simultaneous detection and monitoring operations by the user and thus improving surveying efficiency. Existing smartphones all possess high-resolution display modules 310 and wireless communication modules, which can serve as external display extensions 300 for handheld radar devices. Users can simply attach their smartphones to the host 100 and complete the connection and pairing process to use them as external display extensions 300, eliminating the need to purchase dedicated external display extensions and thus saving on hardware costs.

[0071] Considering that smartphones with wireless charging capabilities all have built-in magnetic connectors, setting a magnetic module 115 inside the main unit 100 is a relatively easy connection solution between it and the smartphone. The connection method between the main unit 100 and the external display expansion component 300 is not limited to magnetic attraction. In other embodiments, the housing 110 and the external display expansion component 300 can also be detachably connected by means of snap-fit, fitting, or adhesive.

[0072] In other implementations, the external display extension 300 can also be a dedicated accessory developed for the host 100. This type of external display extension 300 can have a built-in power supply or draw power from the host 100 via a relevant physical interface. The external display extension 300 and the host 100 can communicate wirelessly or via a physical data interface. This customized solution for the external display extension 300 ensures a high degree of compatibility with the host 100.

[0073] Example 4 See Figure 13 , 14 Based on Embodiment 3, this embodiment also introduces a secondary expansion component 400 with a third detection module 410. The secondary expansion component 400 also has a second data connector (not shown in the figure), and the housing 110 is provided with a second data interface 116 that cooperates with the second data connector.

[0074] The introduction of the secondary expansion component 400 can further enhance the performance of the host 100 and improve surveying efficiency and accuracy by working in conjunction with the first detection module 120 and the second detection module 230. Data communication and mechanical connection between the secondary expansion component 400 and the host 100 are achieved through the second data connector 420 and the second data interface 116; therefore, the secondary expansion component 400 has certain limitations in terms of weight and size.

[0075] In this embodiment, the third detection module 410 mounted on the secondary expansion member 400 has an RTK (Real-Time Kinematic) high-precision positioning module, which can provide real-time location information to the host 100. In this embodiment, the secondary expansion member 400 is disposed on the -Z-axis side of the housing 110 and has a support portion 420. The third detection module 410 is disposed on the +Z-axis end of the support portion 420 and is mounted on top of the first radar module 121 by the support portion 420. The second data connector is located on the -Z-axis end of the support portion 430.

[0076] In order to protect the second data interface 116 when the secondary expansion member 400 is not connected, this embodiment provides a soft rubber cover 118 on the housing 110 to cover the second data interface 116. The end of the soft rubber cover 118 is fixedly connected to the housing 110 to prevent loss.

[0077] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict. The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

[0078] Although the present invention has been specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the present invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the essential spirit and scope of the present invention, and all such modifications and variations fall within the scope of the present invention.

Claims

1. A scalable handheld radar device, comprising a main unit, the main unit including a housing and a first detection module disposed on the housing, characterized in that: The housing includes an extension for connecting an external component. The extension includes a mating cavity recessed in a first direction side of the housing and a first data interface disposed on the inner wall of the mating cavity. The mating cavity has a first sidewall and a second sidewall disposed opposite to each other in a second direction intersecting the first direction. The housing also includes a receiving cavity communicating with the mating cavity on one side of the second sidewall. The extension includes a locking member movably disposed in the receiving cavity. The external component includes a fitting portion that mates with the mating cavity. The locking member has a limiting portion that can act on the fitting portion. The host and the external component have a locked state and an unlocked state. In the locked state, both the fitting part and the limiting part are at least partially located in the engagement cavity, and in the second direction, the fitting part abuts against the first sidewall and the limiting part. In the unlocked state, the distance between the limiting part and the first sidewall in the second direction is not less than the distance between the first sidewall and the second sidewall.

2. The scalable handheld radar device according to claim 1, characterized in that: The engaging component is a locking rod, which is hinged to the housing at its first end located in the accommodating cavity. The locking rod can rotate along a plane defined by a first direction and a second direction. The limiting part is a protruding structure provided at the first end of the locking rod. The housing is recessed in the area corresponding to the second end of the locking rod on the first direction side to provide a clearance portion.

3. The scalable handheld radar device according to claim 2, characterized in that: The housing also includes a spacer portion disposed between the accommodating cavity and the clearance portion, wherein in the locked state, the locking rod abuts against the spacer portion.

4. The scalable handheld radar device according to claim 2, characterized in that: The first data interface is located on the inner wall of the first direction side of the engagement cavity.

5. The scalable handheld radar device according to any one of claims 1-4, characterized in that: The external component is a protective cover, which includes a cover body that covers the first data interface. The fitting part includes at least a portion of the cover body, and the surface of the cover body is flush with the surface of the housing in the first direction.

6. The scalable handheld radar device according to any one of claims 1-4, characterized in that: The external component is a main extension component with a second detection module. The main extension component has a first data connector on the surface of the fitting part. In the locked state, the first data connector is engaged with the first data interface.

7. The scalable handheld radar device according to claim 6, characterized in that: The first detection module and the second detection module include a radar module, and / or a three-dimensional scanning module, and / or a multispectral sensor module, and / or an infrared imaging module.

8. The scalable handheld radar device according to any one of claims 1-4, characterized in that: It also includes a secondary expansion component with a third detection module, the secondary expansion component having a second data connector, and the housing having a second data interface that mates with the second data connector.

9. The scalable handheld radar device according to any one of claims 1-4, characterized in that: It also includes an external display extension that is communicatively connected to the host, the external display extension having a display module, both the host and the external display extension having a built-in wireless communication module, and the external display extension being detachably mounted on the housing.

10. The scalable handheld radar device according to claim 9, characterized in that: It also includes a magnetic module configured on the external display extension and the host.

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