Gravity self-balancing target detection device

Abstract

The application discloses a gravity self-balancing target detection device, and relates to the technical field of wireless communication, which comprises a shell and a detection assembly, is used for detecting whether a to-be-detected object exists in a specified direction, and is characterized in that the detection assembly is rotationally connected with the shell, and at least one counterweight assembly is further included, which is used for counterweighting the detection assembly, so that the detection direction of the detection assembly after the detection assembly reaches a stable balance state from a rotating state under the action of gravity is oriented to the specified direction. The detection assembly is always subjected to a force in a fixed direction through the rotation of the detection assembly and the counterweighting of the counterweight assembly. Even if the detection assembly generates deviation of a signal transceiving surface due to external force, the detection assembly can be turned to an initial state under the action of the force in the fixed direction, so that the front and rear signal acquisition states are kept consistent, the acquisition data error is reduced, and the accuracy is improved.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to a gravity-based self-balancing target detection device. Background Technology

[0002] In certain specific application scenarios, such as the need to monitor whether people or objects pass through certain detection areas, a reminder or alarm signal will be issued when people or objects enter the area. The commonly used detection devices in the present are to emit electromagnetic waves to illuminate the target and receive its echo to obtain various location information from the target to the electromagnetic wave emission point. Therefore, they have great application potential in various monitoring and surveying fields.

[0003] To achieve the best detection results, the transmitting surface of the detection device must be directly facing the surface to be measured. However, due to the variability of usage scenarios, there is a possibility of external forces. Even small vibrations can cause changes in the detection angle of the detection device, making it difficult to quickly and accurately restore the initial signal transmission and reception angle. This results in errors in the data transmitted and received before and after the initial signal transmission and reception, leading to inaccurate monitoring results. Summary of the Invention

[0004] This invention discloses a gravity-based self-balancing target detection device, aiming to solve the technical problem that the detection results of existing detection devices are easily affected by external forces, leading to errors and making it difficult to restore the detection results to their initial state. 。

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gravity-based self-balancing target detection device includes a housing and a detection component for detecting the presence of a target object within a specified direction. The detection component is rotatably connected to the housing. The device also includes at least one counterweight component for balancing the detection component, so that the detection direction of the detection component after reaching a stable equilibrium state from a rotating state under the action of gravity is oriented towards the specified direction.

[0007] Furthermore, the counterweight component is disposed on the detection component.

[0008] Furthermore, the point of application of the counterweight component to the detection component is variable.

[0009] Furthermore, the counterweight assembly has a cavity inside, and at least one counterweight block that can slide freely inside the cavity is provided inside the cavity.

[0010] Furthermore, the free sliding direction of the counterweight is parallel to the rotation axis direction of the detection component.

[0011] Furthermore, during rotation, the detection component can be electrically connected to the external power supply and / or detection signal from a fixed position to a rotating position.

[0012] Furthermore, it also includes a locking component for locking the probe component after it has reached a stable equilibrium state, preventing it from rotating.

[0013] Furthermore, the locking component is disposed on the housing, and the locking component can apply resistance to the detection component to lock and restrict the rotation of the detection component.

[0014] Furthermore, a main control unit is also installed on the housing, which is connected to the power supply and detection signal of the detection component.

[0015] Furthermore, the locking component is driven by the main control unit.

[0016] Furthermore, this solution also provides an application of a gravity self-balancing target detection device, in which multiple gravity self-balancing target detection devices described above are arranged in series within the detection area to form a detection network.

[0017] Furthermore, the detection area of ​​a single gravity-self-balancing target detection device can partially overlap with the detection areas of other gravity-self-balancing target detection devices.

[0018] Furthermore, it also includes an alarm host, which is connected via a bus communication with multiple gravity self-balancing target detection devices. The alarm host is used to respond to the detection signal of any gravity self-balancing target detection device detecting the presence of a target object in a specified direction.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] This invention provides a rotatable detection component on the housing and uses a counterweight component to balance the weight of the detection component, ensuring that the detection component is always subjected to a force in a fixed direction. Even if the signal transmission and reception surfaces of the detection component deviate due to external forces, the force in this fixed direction can rotate the detection component back to its initial state, keeping the signal acquisition state consistent before and after, reducing data acquisition errors, and improving accuracy.

[0021] By setting a locking component, the free rotation of the detection component can be restricted when the detection component needs to be adjusted for a long time without the need for signal transmission surface adjustment, so that the signal transmission and reception end face of the detection component remains unchanged in the rotational equilibrium state. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of a partial cross-sectional view in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram showing the internal structure of the overall structure in an embodiment of the present invention.

[0025] Figure 4 This is a schematic cross-sectional view of the counterweight component in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the detection status of the main device in an embodiment of the present invention;

[0027] Figure 6 (a) is a schematic diagram of the detection area (longitudinal) arrangement in an embodiment of the present invention;

[0028] Figure 6 (b) is a schematic diagram of the detection area (horizontal) arrangement in an embodiment of the present invention.

[0029] In the diagram: 1. Housing; 11. Positioning sleeve; 111. Support rod; 2. Detection component; 21. Radar plate; 22. Sleeve; 23. Rotating shaft; 3. Counterweight component; 31. Cavity; 32. Counterweight block; 4. Locking component. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0034] The gravity self-balancing target detection device disclosed in this invention enables the detection surface to change from a dynamically changing state to a balanced state during use, so that the orientation of the front and rear detection surfaces always remains unchanged. The following application scenarios are proposed to elaborate on this solution.

[0035] Example 1:

[0036] Please refer to the following: Figures 1-6 (b) A gravity self-balancing target detection device in this solution consists of a shell 1 with an internal cavity. The specific shape is not specifically limited and can be cylindrical, rectangular or other irregular shapes. It can be selected in combination with the actual installation conditions in the actual application scenario to increase concealment and ease of installation.

[0037] In this case, a hollow cylindrical shell 1 structure was selected, and the detection component 2 was rotatably installed in the internal cavity of the shell 1.

[0038] Specifically, the detection component 2 consists of a radar plate 21 and a sleeve 22 installed on the side of the radar plate 21. The sleeve 22 is fixed to the side of the radar plate 21 and is rotatably mounted on the housing 1 via a rotating shaft 23.

[0039] It is worth noting that the sleeve 22 in this case can be set as one or two. When there is one sleeve 22, one end of the sleeve 22 is fixed on the radar plate 21, and the other end is rotatably mounted on the housing 1. When there are two sleeves 22, the radar plate 21 is fixed between the two sleeves 22, and both sleeves 22 rotate on the housing 1 through the rotating shaft 23. In practice, in order to ensure that the rotation of the radar plate 21 is smooth and without jamming, a bearing or bearing seat can be set to reduce the rotational resistance of the sleeve 22. This is a well-known technology and will not be elaborated on in this case.

[0040] More specifically, the radar board 21 in this case is plate-shaped. One end of the radar board 21 is provided with a component for signal transmission and reception (which is a known technology for radar boards and is not shown in this case or the accompanying drawings). When this end of the radar board 21 is facing the area to be measured, it can transmit a signal into the area. When the signal is reflected back to the radar board 21, the radar board 21 receives the reflected signal, that is, it determines that there is a person or object in the area that can reflect the signal back, thus achieving the purpose of detecting the target object (person) in the area to be measured.

[0041] It is worth noting in this case that there are multiple ways to fix the radar plate 21 to the two sleeves 22 or to one sleeve 22, and no particular limitation is made.

[0042] In order to further ensure that the two sleeves 22 have a sufficiently stable fixing effect on the radar plate 21 and are not easy to fall off during rotation, each sleeve 22 is provided with a counterweight component 3 extending to the opposite end of the radar plate 21 transmitting signal. In addition to providing counterweight for the radar plate 21, i.e. the detection component 2, the counterweight component 3 can also make the radar plate 21 more securely fixed.

[0043] Specifically, the counterweight assembly 3 is tubular in shape, with a counterweight assembly 3 on each sleeve 22. Due to the weight of the counterweight assembly 3 itself, under the influence of gravity, no matter how the housing 1 is rotated, the radar plate 21 will always be vertically downward (in the direction of gravity) on the side of the sleeve 22 on both sides of the radar plate 21 where the counterweight assembly 3 is installed, and the other end of the radar plate 21 (the opposite end of the counterweight assembly 3) will always be vertically upward (the opposite end of the direction of gravity). This ensures that no matter what scenario the radar plate 21 is in, it will maintain a balanced state under the action of the counterweight assembly 3 after a short rotation process, and the orientation of the signal transceiver end will remain unchanged before and after the rotation process.

[0044] If a set of sleeves 22 is provided as described above, the radar plate 21 will also be balanced by the counterweight component 3. The specific principle is the same as described above and will not be repeated here.

[0045] Example 2:

[0046] Furthermore, in addition to the housing 1, the detection component 2 used to detect whether there is a test object in a specified direction, and the counterweight component 3 used to counterweight the detection component 2, this solution also includes a locking component 4, which is used to lock the detection component 2 after it has reached a stable equilibrium state, so that it cannot rotate.

[0047] Specifically, in this case, the detection component 2 is rotatably connected to the housing 1, and under the action of the counterweight component 3, it can maintain the state of transition from free rotation to equilibrium. That is, by rotating the housing 1, as long as the centrifugal force generated by rotating the housing 1 is not much greater than the rotational resistance provided by the counterweight component 3 to the detection component 2, the front and back orientation of the signal transmitting end face of the detection component 2 in the free rotation state remains unchanged.

[0048] In some special scenarios, such as when the signal transceiver face of the detection component 2 needs to be non-vertical (i.e. not opposite to the direction of gravity), the detection component 2 can be fixed by the locking component 4, so that it cannot rotate freely. Even if it is subjected to external force, it will not undergo the rotation process from free rotation to equilibrium. Then, by adjusting the orientation of the housing 1 after locking the detection component 2, the purpose of the signal transceiver face of the detection component 2 not needing to be opposite to the direction of gravity can be achieved. At this time, rotating the housing 1 will cause the detection component 2 to rotate synchronously, and the orientation of the signal transceiver face of the detection component 2 will change in real time with the rotation of the housing 1.

[0049] Alternatively, if the entire device is installed underground or inside a building wall, after it is placed inside, when the detection component 2 is kept constant under the action of the counterweight component 3, the operable space of the housing 1 is very limited, and it would be very troublesome to manually lock the detection component 2. Therefore, a locking component 4 that can intelligently and conveniently restrict the rotation of the detection component 2 in a freely rotating state is needed to achieve the purpose.

[0050] Specifically, in this case, a positioning sleeve 11 is provided on each of the two sides of the housing 1. The positioning sleeve 11 is installed on the side end of the housing 1 and is located on the side of the sleeve 22 away from the radar plate 21. The rotating shaft 23 provided on the sleeve 22 rotates on the positioning sleeve 11. (The rotation position of the rotating shaft 23 is not limited here, and the placement of bearings or bearing seats on the positioning sleeve 11 corresponding to the position of the rotating shaft 23 is a known technique to reduce rotational resistance, which is not elaborated in this case and is not shown in the figure.)

[0051] The positioning sleeve 11 is fixed to the side end of the housing 1, that is, one set of sleeves 22 or two sets of sleeves 22 rotate on the positioning sleeve 11.

[0052] The locking component 4 can apply resistance to the adjacent sleeve 22, which is sufficient to overcome the gravity applied by the counterweight component 3 to the sleeve 22, thereby restricting the free rotation of the sleeve 22, and thus the orientation of the radar plate 21 fixed on one side of the sleeve 22 will not change.

[0053] There are various ways to apply resistance, but the core purpose is to prevent the sleeve 22 and the radar plate 21 connected to the sleeve 22 from rotating. The locking component 4 can apply resistance to the sleeve 22 or directly to the radar plate 21, or apply resistance to the rotating shaft 23 on the sleeve 22. The resistance can be in various forms, such as limiting friction.

[0054] Taking the limiting and fixing as an example, the locking component 4 can set an object that intersects with the path of the sleeve 22, radar plate 21, or rotating shaft 23. When the sleeve 22, radar plate 21, or rotating shaft 23 rotates to a certain area, it is blocked by this object and cannot continue to rotate.

[0055] However, if friction is applied directly to the sleeve 22, radar plate 21, or rotating shaft 23, that is, when the sleeve 22, radar plate 21, or rotating shaft 23 needs to rotate, this friction must be overcome, and there are several ways to do so.

[0056] For example, the locking component 4 can apply a force similar to a "brake pad" to the surface of the sleeve 22, radar plate 21, or rotating shaft 23 during the rotation of the sleeve 22, radar plate 21, or rotating shaft 23.

[0057] Without exception, the above methods are based on the fact that the original detection component 2 is not restricted from rotating by these resistances. Instead, after reaching a state of equilibrium, the detection component 2 is restricted by the action of the locking component 4. It is a process from "nothing" to "something". In this process, the force-applying part of the locking component 4 must move from away from the point of force application to approach the final contact.

[0058] Considering the overall equipment processing cost and assembly difficulty, this solution proposes a more economical force application method that is not difficult to assemble.

[0059] A stop rod 111 is provided on the positioning sleeve 11, which can move toward the adjacent sleeve 22. When the stop rod 111 abuts against the end face of the sleeve 22, radar plate 21, or rotating shaft 23 (if it is rotating shaft 23, a plane intersecting the movement path of the stop rod 111 will be fitted on the outside of the rotating shaft 23), resistance is provided by abutting. The specific arrangement and the linear movement of the object are known technologies, and there are no excessive limitations in this case.

[0060] Furthermore, the method of remotely controlling the movement distance of the lever 111 is also existing technology, which can be controlled by remote operation and timed drive. This case will not make too many limitations or elaborations.

[0061] Preferably, in this case, the abutment 111 abuts against the side end face of the sleeve 22, and restricts the rotation of the sleeve 22 by pressing it, so that the radar plate 21 cannot rotate normally due to the restricted rotation of the sleeve 22.

[0062] Based on the above embodiments, optionally, the point of application of the counterweight component 3 to the detection component 2 is variable. In actual use, for example, when it is necessary to monitor a spatial area parallel to the ground, the radar plate 21 needs to be oriented towards the area to be measured at a specific signal transmission and reception angle. Therefore, the installation position of the counterweight component 3 (tubular) in this case can be adjusted according to the actual installation requirements. In this case, in order to ensure that one end of the radar plate 21 is always placed vertically, the counterweight component 3 is set at the axial position of the bottom end of the radar plate 21, and one end of the radar plate 21 is always parallel to the ground.

[0063] Furthermore, the counterweight assembly 3 has an internal cavity 31. When two sleeves 22 are provided, the corresponding end faces of the cavities 31 on the two counterweight assemblies 3 will be connected. Thus, when the two counterweight assemblies 3 are abutted together due to the opposing fixation of the two sleeves 22, the cavities 31 in the two counterweight assemblies 3 will come together to form a coaxial cavity. Inside the cavity 31, there is a counterweight block 32 that can slide freely within the cavity 31. In addition to providing counterweight for the counterweight assembly 3, when the housing 1 is installed at an angle, the counterweight block 32 will slide to the end of the cavity 31 closer to the direction of gravity, changing the center of gravity of the entire counterweight assembly 3 and improving the effect of fixing the detection assembly 2 under gravity.

[0064] It is worth noting that in this case, the main control unit connects the operating power supply and detection signal of the detection component 2, and the detection component 2 can connect to the external power supply and / or detection signal from a fixed position to a rotating position during rotation.

[0065] In this case, the radar board 21 is powered by connecting to an external circuit via wires. The specific connection is known technology and will not be elaborated upon in this case.

[0066] In this case, the opening and closing of the locking component 4 is controlled by the main control unit. That is, the movement of the abutment 111 is controlled by the main control unit. When working, the abutment 111 moves toward the sleeve 22 and presses against the sleeve 22 to apply pressure, so that the sleeve 22 cannot rotate freely. The stopping of the operation of the abutment 111 is controlled by the main control unit.

[0067] There are various specific control methods, which are not specifically limited here. For example, controlling the movement time of the push rod 111, or installing a pressure sensor on the sleeve 22, so that the push rod 111 stops moving after moving for a certain period of time or when the force against the sleeve 22 reaches a certain level, are common electronic control technologies, which are not specifically shown in this case or in the accompanying drawings.

[0068] In actual operation, the overall volume of the shell 1 in this case is relatively small. In practical applications, it is necessary to arrange multiple gravity self-balancing target detection devices mentioned above in series in the detection area to form a detection network.

[0069] For example, when buried underground in the detection area, the network will detect people or objects passing overhead and issue a timely warning signal.

[0070] When installed on a non-planar surface or in a designated detection area, it is necessary to change the position of the counterweight or use the locking component 4 to fix the radar plate 21 in a balanced state so that the radar plate 21 will not rotate under the action of external force and the detection surface will always remain unchanged.

[0071] Furthermore, in this case, the detection area of ​​a single gravity-self-balancing target detection device may partially overlap with the detection areas of other gravity-self-balancing target detection devices, as shown in the attached diagram. Figure 5 As shown, this ensures that there are no blind spots in the detection area formed by multiple gravity-balanced target detection devices, thereby improving the detection effect.

[0072] Furthermore, this detection network can communicate with the alarm host and can be connected via bus communication with each gravity self-balancing target detection device. When any device is triggered (when a person or object passes through the detection network), it can respond to the detection signal of any gravity self-balancing target detection device that detects the presence of the target object in the specified direction and issue an alarm signal. The specific method of communication and series connection of multiple autonomous signal transmission and reception devices is a well-known technology and is not extensively involved in this case, nor is it shown in the figure.

[0073] See attached document Figure 5 This involves placing multiple devices under a detection area, using the detection range of each device to cover the entire detection area, and the number of devices is determined by the area of ​​the required detection area.

[0074] For example, as shown in the appendix Figure 6 In the scenario shown in (a), multiple devices are arranged in an area where queuing is required. When a person (object) passes through this area, the radar panel 21 receives the signal of the person (object) passing through the area and determines the number and location of the person (object) passing through the area.

[0075] For example, see attached Figure 6 As shown in (b), in some areas that need to be monitored, such as prisons or entrance passages, when someone enters (leaves) this monitoring area, it will be detected by the radar panel 21, and then send a signal to the alarm host connected in series with the detection device, so that the alarm host will issue an alert to remind someone to pass through (leave).

[0076] There are various specific application environments, which will not be elaborated on here.

[0077] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A gravity-based self-balancing target detection device, characterized in that, include: case; A detection component is used to detect whether there is an object to be tested within a specified direction, and the detection component is rotatably connected to the housing. It also includes at least one counterweight component, which is disposed on the detection component. The counterweight component is used to add weight to the detection component, so that the detection direction of the detection component after reaching a stable equilibrium state from a rotating state under the action of gravity is oriented toward the specified direction. The point of application of the counterweight component to the detection component is variable; The counterweight assembly has a cavity inside, and at least one counterweight block that can slide freely inside the cavity is provided inside the cavity. The free sliding direction of the counterweight is parallel to the rotation axis of the detection component; It also includes a locking component disposed on the housing, which can apply resistance to the detection component to lock the detection component after it has reached a stable equilibrium state, preventing it from rotating.

2. The gravity-based self-balancing target detection device according to claim 1, characterized in that, During rotation, the detection component can be electrically connected to the external power supply and / or detection signal from a fixed position to a rotating position.

3. The gravity-based self-balancing target detection device according to claim 1, characterized in that, The housing is also equipped with a main control unit, which is connected to the power supply and detection signal of the detection component.

4. The gravity-based self-balancing target detection device according to claim 1, characterized in that, The housing is also equipped with a main control unit, which is connected to the power supply and detection signal of the detection component.

5. The gravity-based self-balancing target detection device according to claim 4, characterized in that, The locking component is driven by the main control unit.

6. A detection method applied to a gravity-self-balancing target detection device as described in any one of claims 1-5, characterized in that, Multiple gravity-equipped target detection devices are connected in series within the detection area to form a detection network.

7. The detection method of the gravity self-balancing target detection device according to claim 6, characterized in that, The detection area of ​​a single gravity-self-balancing target detection device may partially overlap with the detection areas of other gravity-self-balancing target detection devices.

8. The detection method of the gravity self-balancing target detection device according to claim 7, characterized in that: It also includes an alarm host, which is connected via a bus communication with multiple gravity self-balancing target detection devices. The alarm host is used to respond to the detection signal of any gravity self-balancing target detection device that detects the presence of a target object in a specified direction.

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