Embedded carrier presence sensing device

Abstract

An embedded carrier presence sensing device comprising: an accommodating portion having a movement housing space where a first opening is disposed; a movement portion formed in a cylindrical shape and at least partially housed in the movement housing space; and a battery portion housed in the movement housing space and detachably connected to the movement portion, wherein the outer wall of the movement portion is provided with an external thread, and the inner wall of the accommodating portion is provided with an internal thread, to allow the movement portion and accommodating portion to be screwed together.

Description

[Technical Field]

[0001] This invention relates to a ground-mounted vehicle parking sensing device, which is installed in a parking area to sense whether the vehicle is parked in the parking area. [Previous Technology]

[0002] Vehicle parking sensing devices detect whether a vehicle is parked by sensing the earth's magnetic field. Most of these devices are buried in the ground. In order to be able to be installed in various areas without being limited by power lines, they are usually powered by batteries rather than connected to the mains power. However, as buried devices, it is extremely difficult to achieve a battery replacement structure under the high waterproof requirements. The current practice is to dig out the buried device, send the entire device back to the repair center for processing, replace the battery at the repair center, and then re-waterproof the entire device.

[0003] Related patent document TW M595302 U

[0004] As a buried device, it is expected to meet both the requirements of waterproofing and easy battery replacement. [Summary of the Invention]

[0005] One aspect of the present invention is: a buried vehicle parking sensing device, wherein at least a portion of the buried vehicle parking sensing device is buried in the ground, and a sensor is used to sense an object near the ground. The buried vehicle parking sensing device comprises: a receiving portion having a mechanism receiving space and a first opening above the mechanism receiving space; a mechanism portion being formed in a cylindrical shape and at least partially housed in the mechanism receiving space, and the sensor being housed in the mechanism portion; and a battery portion being housed in the mechanism receiving space and... It is detachably connected to the movement; wherein the outer wall of the movement is provided with external threads, and the inner wall of the receiving part is provided with internal threads, so as to allow the movement and the receiving part to be screwed together; the movement has a first electrical connection part for electrical connection with the battery part, the battery part has a second electrical connection part for electrical connection with the movement, the periphery of the movement except for the first electrical connection part is waterproof and sealed, the periphery of the battery part except for the second electrical connection part is waterproof and sealed, and at least two or more stepped portions are formed on the top surface of the movement.

[0006] By means of the above-mentioned underground vehicle parking sensing device, it is possible to quickly carry out the work and achieve sealing when installing or removing the core part, and maintain good waterproof performance while realizing quick battery replacement.

Implementation Method

[0007] Hereinafter, the description will be made with reference to illustrations showing exemplary embodiments of the inventive concept. The inventive concept will be set forth more fully below. The advantages, features, and implementation methods of the inventive concept will become apparent from the exemplary embodiments described in more detail below with reference to the illustrations. However, it should be noted that the inventive concept is not limited to the following exemplary embodiments, but can be implemented in various forms. Therefore, exemplary embodiments are provided only to disclose the inventive concept and to enable those skilled in the art to understand the category of the inventive concept. In the illustrations, exemplary embodiments of the inventive concept are not limited to the specific instances provided herein and are exaggerated for clarity, with some components omitted as appropriate.

[0008] The terminology used herein is for illustrative purposes only and is not intended to limit the invention. Unless the context clearly indicates otherwise, the singular forms of the terms "a" and "the" used herein are intended to include the plural forms as well. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items. It should be understood that when an element is referred to as "connected" or "coupled" to another element, the element may be directly connected or coupled to the other element or there may be intermediate elements.

[0009] Similarly, it should be understood that when an element (e.g., a layer, region, or substrate) is said to be "on" another element, the element may be directly on the other element, or there may be intermediate elements. In contrast, the term "directly" means that there are no intermediate elements. It should also be understood that when the terms "comprising" or "including" are used herein, they indicate the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Unless otherwise specified, "above" and "below" should be understood as above and below in the vertical direction.

[0010] Furthermore, exemplary embodiments in the detailed description will be illustrated by cross-sectional views of idealized exemplary drawings that serve as concepts of the present invention. Accordingly, the shape of the exemplary drawings may be modified according to manufacturing techniques and / or tolerable errors. Therefore, exemplary embodiments of the present invention are not limited to the specific shapes shown in the exemplary drawings, but may include other shapes that may be produced according to the manufacturing process. The areas illustrated in the drawings have general characteristics and are used to illustrate specific shapes of elements. Therefore, this should not be considered as limiting the scope of the present invention.

[0011] It should also be understood that although the terms "first," "second," "third," etc., may be used herein to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish the various elements. Therefore, a first element in some embodiments may be referred to as a second element in other embodiments, without departing from the teachings of the present invention. Exemplary embodiments of the inventive concepts illustrated and described herein include their complementary counterparts. Throughout this specification, the same reference numerals or the same indicators denote the same elements.

[0012] In this specification, "waterproof sealing" means that the assembly of the device structure is achieved by means of O-rings, gaskets, sealants, waterproof tape, tight joints, etc., so that the outer wall of the structure has no gaps or openings to allow water / moisture to enter.

[0013] Please refer to Figure 1, which is a schematic diagram of the installation of the buried vehicle parking sensing device 1 of the present invention. As shown in Figure 1, the buried vehicle parking sensing device 1 installed in the parking area PS determines whether the vehicle has approached the parking area by sensing the increase or decrease of the Earth's magnetic field, and further confirms whether the vehicle is parked in the parking area by using a distance sensor, which will be described in detail later. In this embodiment, the buried vehicle parking sensing device 1 is installed at the geometric center of the parking area PS, and is located directly below the vehicle when the vehicle is parked.

[0014] In this embodiment, the buried vehicle parking sensing device 1 is buried in the ground, with only its top surface exposed. It senses the vehicle (object under test) near the ground using a sensor described later. Referring to FIG2, which is a perspective view of the buried vehicle parking sensing device 1 of the present invention, as shown in FIG2, the buried vehicle parking sensing device 1 includes: a receiving portion 10 and a core portion 30. The core portion 30 is received in the receiving portion 10, with only its top surface exposed.

[0015] Referring to Figures 3 and 4, Figure 3 is a cross-sectional view of the receiving portion 10 in the buried vehicle parking sensing device 1 of the present invention, and Figure 4 is a side view of the core portion 30 in the buried vehicle parking sensing device 1 of the present invention. As shown in Figure 3, the receiving portion 10 has a core receiving space 101 to receive the core portion 30, and has a first opening 101OP above the core receiving space 101 (dotted line) to expose the top surface of the core portion 30.

[0016] As shown in Figures 2 and 4, the core portion 30 is cylindrical, with the exception of its exposed top surface, the rest is housed within the core housing space 101. The sensor described later is housed within the core portion 30. The buried vehicle parking sensing device 1 also includes a battery portion 40, which is also housed within the core housing space 101 and is detachably connected to the core portion 30. As shown in Figure 4, the core portion 30 further includes a battery housing space 301 at its lower end. Most of the battery portion 40 is housed within the battery housing space 301. A second opening 301OP is located on the side of the battery housing space, allowing the battery portion 40 to enter and exit the battery housing space 301. In this embodiment, when the battery portion 40 is inserted into the battery housing space 301, a portion of the battery portion 40 still protrudes beyond the second opening 301OP, facilitating easy removal of the battery portion 40 later.

[0017] In addition, the outer wall of the core part 30 is provided with an external thread 30t (Fig. 4), and the inner wall of the receiving part 10 is provided with an internal thread 10t (Fig. 3) for screwing the core part 30 and the receiving part 10 together. Referring to FIG5, FIG5 is a cross-sectional schematic diagram of the buried vehicle parking sensing device 1 of the present invention when buried in the ground. This cross-sectional schematic diagram is only for illustrating the installation structure, so the electronic components of the core part 30 are omitted. As shown in FIG5, the uppermost part of the core part 30 is the core top 30h. On the outer wall of the core part 30, below the core top 30h and above the external thread 30t, an O-ring 34 is provided. When the core part 30 is installed in the receiving part 10, the O-ring 34 between the upper part of the core part 30 and the upper part of the receiving part 10 cooperates with the thread structure between the core part and the receiving part to form a seal.

[0018] Referring back to Figure 4, it can be seen that a portion of the battery section 40 is exposed outside the second opening 301OP (i.e., on the right side of the drawing). However, there is some space further outside the battery section 40 (further to the right of the drawing). Although not shown in Figure 4, the movement section 30 has a first electrical connection EC1 for connecting with the battery section 40. The outer periphery of the movement section 30 itself, except for the first electrical connection EC1, is waterproof and sealed. The battery section 40 has a second electrical connection EC2 for electrical connection with the movement section 30. The outer periphery of the battery section 40 itself, except for the second electrical connection EC2, is waterproof and sealed. The first electrical connection EC1 and the second electrical connection EC2 are specifically wires. The battery section 40 transmits power from the battery section 40 to the movement section 30 via the second electrical connection EC2 and the first electrical connection EC1. In Figure 4, the space further out (towards the right of the drawing) than the battery section 40 is used for the electrical connection of the first electrical connection EC1 of the core section 30 and the second electrical connection EC2 of the battery section 40. Specifically, refer to Figure 7, which is a schematic diagram of the connection between the first electrical connection EC1 and the second electrical connection EC2 in the buried vehicle parking sensing device 1 of the present invention. As shown in Figure 7, the front ends of the first electrical connection EC1 and the second electrical connection EC2 are respectively placed into the connector box CB. In the connector box CB, the core wires of the first electrical connection EC1 and the core wires of the front end of the second electrical connection EC2 are twisted and intertwined. In this state, the connector box CB is further provided with a malleable part FP. The malleable part FP is clay, which remains malleable at room temperature. It can also be other materials such as gel, as long as it remains malleable at room temperature. As shown in Figure 7, the moldable part FP covers the front ends of the first electrical connection EC1 and the second electrical connection EC2, along with the intertwined portion, to achieve a waterproof seal. Further waterproof sealing is ensured by the tight sealing effect created by the closing of the upper and lower covers of the connector box CB, preventing moisture from contacting the core wire and forming a protective structure for the moldable part FP to prevent it from cracking due to impact, thus affecting the waterproof seal. This allows the first and second electrical connections to be waterproof and sealed. The elastic modulus of the moldable part can be from 1MN / m² to 15MN / m², preferably from 2MN / m² to 8MN / m². Within this range, the moldable part can provide a good waterproof seal while also possessing a certain degree of structural strength, preventing excessive deformation that could affect the waterproof seal.Traditional connectors using silicone rings for quick insertion and removal are prone to wear on the terminals or silicone rings due to the rapid insertion and removal action. When the terminals wear, it will lead to poor contact; when the silicone ring wears, it will lead to poor waterproofing. This invention covers the two electrical connection parts with a malleable part while the core wires are in contact, avoiding the friction caused by rapid insertion and removal. This ensures that even under long-term use, the waterproof seal and electrical connection can still be well maintained.

[0019] The main electronic components of the buried vehicle parking sensing device 1 are disposed in the core section 30. Referring to FIG6, FIG6 is a diagram of the electronic component configuration of the core section 30 in the buried vehicle parking sensing device 1 of the present invention. As shown in FIG6, the core section 30 is provided with: an earth magnetic field sensor ES and a distance sensor DS as sensors; a control unit 36; a wireless communication module 38; and a first electrical connection section EC1. The first electrical connection section EC1 supplies power from the battery section 40 to the other electronic components. The earth magnetic field sensor ES and the distance sensor DS cooperate as sensors in the buried vehicle parking sensing device 1. Regarding the earth magnetic field sensor ES, since metal objects have a significant influence on the earth's magnetic field, the earth magnetic field sensor ES can detect whether the vehicle is approaching the parking area. The distance sensor DS is a millimeter-wave radar. Referring to Figure 2, a first window W1 is provided on the top 30h of the mechanism to emit test signals. After the test signal touches the vehicle (the object being tested), it forms a reflected signal and is reflected back to the distance sensor DS through the second window W2, thereby confirming the distance of the object being tested. When the Earth's magnetic field sensor ES detects that the vehicle is approaching, the control unit 36 ​​causes the distance sensor DS to start sensing the distance of objects within its sensing range and report it to the control unit 36. The control unit 36 ​​determines whether the range sensed by the distance sensor DS is within the range of the distance that should be caused when the vehicle stops in the parking area. Here, the range of this distance is set to 100mm to 250mm. If the sensed distance is within this range, it is determined that a vehicle has stopped in the parking area, and this situation (vehicle has stopped) is notified to a remote server (not shown) via the wireless communication module 38 (e.g., NB-IoT module), and vice versa.

[0020] Referring back to Figure 2, as shown in Figure 2, three stepped portions 32 are provided on the top surface of the top 30h of the movement. Each stepped portion has a plane at a different height from the top surface of the top 30h of the movement, and is thus a recessed portion from the top surface. The three stepped portions 32 are evenly distributed in concentric circles along the center of the top surface of the top 30h of the movement. Therefore, when the movement part 30 is installed in the receiving part 10, the movement part 30 can be tightened or loosened relative to the receiving part 10 simply by rotating it with a tool with a pin, without the need for individual tightening of small screws at different positions in the movement part 30 as in traditional fastening structures. Furthermore, the planar shape of the stepped portion 32 is circular, and the diameter is less than 1 cm. That is to say, fingers cannot be inserted into the stepped portion 32, thereby preventing unauthorized personnel from improperly damaging the device by rotating the movement part 30 with their fingers. In this embodiment, there are three step portions 32, but it is not limited to this. There may be two, four or more, as long as there are two or more so that the movement portion 30 can rotate well.

[0021] The underground vehicle parking sensing device of the present invention, by means of the above configuration, can quickly perform operations and achieve sealing when installing or removing the core part, and can maintain good waterproof performance while realizing quick battery replacement.

[0022] The following description relates to the underground vehicle parking sensing device and describes a disassembly tool used to install or remove the core assembly. Referring to Figure 8, which is a schematic diagram of a disassembly tool 60 used to install or remove the core assembly 30. The end of the disassembly tool 60 is a handle 62, which contains a battery to supply power to the motor 66 at the front end. Between the handle 62 and the motor 66 is a long handle 64. The total length of the long handle 64 and the handle 62 is 120 cm. This length is at least greater than 80 cm, and preferably greater than 100 cm, thereby enabling the disassembly or replacement of the core assembly 30 or the battery assembly 40 even when a vehicle is parked in the parking area. The motor 66 has a rotating shaft 66S at its front end, which is connected to a turntable 68. The front side of the turntable 68 has three pins 68P corresponding to the stepped section 32. Each pin 68P has a pin magnet PM at its front end. The pins 68P of the turntable 68 are inserted into the stepped section 32. The bottom of the stepped section 32 is made of iron, or other ferromagnetic material. The ferromagnetic material in the stepped section 32 and the pin magnet PM at the front end of the pins 68P ensure that the pins 68P are smoothly positioned in the stepped section 32. After aligning the pins 68P with the stepped section 32, starting the motor to rotate it forward (or reverse) will tighten (or loosen) the movement part 30 relative to the receiving part 10.

[0023] An embodiment of the present invention has been described above, but the present invention may also have the following variations.

[0024] In the above embodiments, the distance sensor is a millimeter-wave radar, but it is not limited to this. The distance sensor may also be, for example, an infrared sensor, an ultrasonic sensor, an optical radar sensor, etc.

[0025] In the above embodiments, as the disassembly and assembly tool 60, the long handle 64 is horizontal, allowing the user to install the mechanism 30 from the side. However, it is not limited to this; the long handle 64 can also be vertical, allowing the user to stand directly above the receiving part 10 to install the mechanism 30. In a variation, the long handle 64 can rotate and be fixed relative to the motor 66 at both horizontal and vertical angles, so the user can choose to stand directly above the receiving part 10 or at the side of the receiving part to install the mechanism 30. In a variation, the disassembly and assembly tool is part of a disassembly and assembly robot. The disassembly and assembly robot has a visual recognition module to identify the surrounding environment and the configuration position of the receiving part, and can autonomously find the position of the receiving part and install or remove the mechanism.

[0026] In the above embodiments, a plastic part is used to achieve waterproof sealing in the connection system between the first electrical connection part and the second electrical connection part, but it is not limited to this and a general waterproof connector can also be used.

[0027] In the above embodiment, the core wire of the first electrical connection part and the core wire of the second electrical connection part are twisted and intertwined, but it is not limited to this. The core wires can also be connected by crimping or other methods.

[0028] The above description is only a preferred embodiment and modification of the present invention, and is not intended to limit the scope of the present invention; all other equivalent changes or modifications made without departing from the spirit disclosed in the present invention should be included in the scope of the following patent application. In addition, the technical features disclosed in this specification may be appropriately deleted, combined or modified to become other types of inventions. [Simplified Explanation of the Diagram]

[0029] Figure 1 is a schematic diagram of the installation of the buried vehicle parking sensing device of the present invention.

[0030] Figure 2 is a perspective view of the buried vehicle parking sensing device of the present invention.

[0031] Figure 3 is a cross-sectional view of the receiving part in the buried vehicle parking sensing device of the present invention.

[0032] Figure 4 is a side view of the core part of the buried vehicle parking sensing device of the present invention.

[0033] Figure 5 is a cross-sectional schematic diagram of the buried vehicle parking sensing device of the present invention when it is buried in the ground.

[0034] Figure 6 is a diagram of the electronic components of the core part of the buried vehicle parking sensing device of the present invention.

[0035] Figure 7 is a schematic diagram of the connection between the first electrical connection part and the second electrical connection part in the buried vehicle parking sensing device of the present invention.

[0036] Figure 8 is a schematic diagram of a disassembly and assembly tool used to install or remove the movement.

Claims

1. A buried vehicle parking sensing device, at least a portion of which is buried in the ground, and which senses objects near the ground using a sensor, the buried vehicle parking sensing device comprising: a receiving portion having a core receiving space and a first opening above the core receiving space; a core portion formed in a cylindrical shape and at least partially housed in the core receiving space, and the sensor being housed in the core portion; and a battery portion housed in the core receiving space and detachably coupled to the core portion; wherein... The outer wall of the movement part is provided with external threads, and the inner wall of the receiving part is provided with internal threads, so that the movement part and the receiving part can be screwed together; the movement part has a first electrical connection part for electrical connection with the battery part, the battery part has a second electrical connection part for electrical connection with the movement part, the outer periphery of the movement part except for the first electrical connection part is waterproof and sealed, the outer periphery of the battery part except for the second electrical connection part is waterproof and sealed, and at least two or more stepped portions are formed on the top surface of the movement part.

2. The buried vehicle parking sensing device as described in claim 1, wherein the core portion has a battery housing space for accommodating the battery portion, at least a portion of the battery portion is housed in the battery housing space, and a second opening is provided on the side of the battery housing space for the battery portion to enter and exit the battery housing space.

3. The buried vehicle parking sensing device as described in claim 1, wherein the first electrical connection and the second electrical connection are detachably and waterproofly sealed.

4. The buried vehicle parking sensing device as described in claim 1, wherein the first electrical connection and the second electrical connection are connected in a waterproof and sealed manner by means of a malleable part that remains malleable at room temperature.

5. The ground-mounted vehicle parking sensing device as described in claim 4, wherein the elastic modulus of the malleable part is from 2MN / m² to 8MN / m².

6. The ground-mounted vehicle parking sensing device as described in claim 1, wherein an O-ring is provided on the outer side wall of the core portion and above the external thread.

7. The ground-mounted vehicle parking sensing device as described in claim 1, wherein the number of the step portion is three, and each of the step portions is evenly distributed along a concentric circle concentric with the center of the top surface of the core portion.

8. The buried vehicle parking sensing device as described in claim 1, wherein each of the step portions has a circular planar shape and a diameter of less than 1 cm.

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