GNSS satellite receiver

Abstract

The invention discloses a GNSS satellite receiver, and the receiver comprises a housing which is internally provided with a cavity; the top cover is detachably arranged above the shell; the inner shell is internally provided with a shielding chamber and is positioned in the cavity; the main board is arranged in the shielding chamber; the GNSS antenna is fixedly arranged above the inner shell and located in the cavity; wherein the inner shell is elastically connected with the outer shell, at least one magnetic body with N and S magnetic poles is arranged at the bottom of the inner shell, at least one closed ring made of a conductive material is fixedly arranged in the outer shell, and when the magnetic body is close to or away from the closed ring, current is generated in the closed ring. Elastic buffering is formed between vibration and the internal structure of the GNSS satellite receiver through elastic connection between the inner shell and the outer shell, reciprocating movement of the magnetic body due to elastic buffering is matched with the fixed closed ring to reversely hinder reciprocating movement of the magnetic body, vibration energy is transmitted and converted to form magnetic energy to offset each other, and the vibration energy is converted into vibration energy. And the quick shock absorption effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle positioning control, and in particular to a GNSS satellite receiver. Background Art

[0002] A GNSS receiver is a device used to receive, track, process and measure global navigation satellite system signals. It can receive signals from different satellites and calculate the receiver's position, speed, time and other information by processing and analyzing these signals.

[0003] GNSS satellite receivers are installed in vehicles, such as pile drivers, roller compactors, stackers and reclaimers, gantry cranes, etc. The aforementioned vehicles will produce severe vibrations when working. Long-term and continuous vibrations and bumps will cause damage to the internal structure of the GNSS satellite receiver, greatly reducing its service life. Summary of the invention

[0004] The purpose of the present invention is to provide a GNSS satellite receiver with a shock absorption function, which can significantly reduce the adverse effects caused by vibration and jolt.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A GNSS satellite receiver, comprising:

[0007] a housing having a chamber therein;

[0008] A top cover is detachably disposed above the housing;

[0009] an inner shell having a shielding chamber therein and located inside the chamber;

[0010] A main board is arranged inside the shielding room;

[0011] A GNSS antenna is fixedly disposed above the inner shell and inside the chamber;

[0012] The inner shell and the outer shell are elastically connected, at least one magnetic body with N and S poles is arranged at the bottom of the inner shell, and at least one closed loop made of conductive material is fixedly arranged inside the outer shell. When the magnetic body approaches or moves away from the closed loop, current is generated in the closed loop to form a magnetic field, and the formed magnetic field always hinders the movement of the magnetic body.

[0013] Preferably, a connecting rod is fixedly connected to the center of the bottom of the shell, and the connecting rod is fixedly connected to the mounting plate. A plurality of threaded holes are provided on the mounting plate. The GNSS satellite receiver can be installed in the vehicle by bolting, and the top cover is also installed on the top of the shell by bolting.

[0014] Preferably, the bottom of the inner shell is fixedly connected to a fixed plate, the bottom center of the fixed plate is fixedly connected to a disc, the disc is coaxially fixedly connected to a limiting ring, and a plurality of springs are also arranged inside the chamber. The plurality of springs are arranged circumferentially, one end of the spring is welded to the bottom wall of the chamber, and the other end contacts the disc. The spring is in a vertical state in the chamber, and the contact portion is located inside the enclosed area of ​​the limiting ring.

[0015] Preferably, a plurality of circumferentially arranged vertical rods are fixedly provided below the fixed plate, the magnetic body is block-shaped and fixed inside the vertical rods, and a first circumferentially arranged vertical cylinder is fixedly provided on the bottom wall of the chamber, corresponding to each vertical rod, a closed ring is sleeved on the vertical cylinder, and the inner diameter of the vertical cylinder is larger than the outer diameter of the magnetic body.

[0016] Preferably, a plurality of circumferentially arranged connecting rings are provided inside the fixed plate, the connecting rings are located above the closed ring, both the connecting rings and the closed rings have notches to form a first port and a second port, and a conductive wire is used to connect the first port of the connecting ring to the first port of the closed ring and the second port of the connecting ring to the second port of the closed ring, then the direction of the current flowing through the closed ring is opposite to the direction of the current flowing through the connecting ring, and the formed magnetic fields repel each other.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention forms an elastic buffer between the vibration and the internal structure of the GNSS satellite receiver through the elastic connection between the inner shell and the outer shell, and the reciprocating movement of the magnetic body due to the elastic buffer cooperates with the fixed closed loop to reversely hinder the reciprocating movement of the magnetic body, and the vibration energy is transmitted and converted to form magnetic energy to offset each other, thereby playing a role of rapid shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structural decomposition of a GNSS satellite receiver proposed by the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a GNSS satellite receiver proposed by the present invention;

[0021] Figure 3 A schematic diagram of a connection structure between a corresponding set of connection rings and closed rings in a GNSS satellite receiver proposed by the present invention;

[0022] Figure 4 This is a schematic structural diagram of a magnetic body in a vertical cylinder in a GNSS satellite receiver proposed by the present invention.

[0023] In the figure: 1. outer shell; 2. top cover; 3. inner shell; 4. main board; 5. GNSS antenna; 6. magnetic body; 7. connecting rod; 8. mounting plate; 9. threaded hole; 10. fixing plate; 11. disk; 12. limiting ring; 13. spring; 14. vertical rod; 15. vertical cylinder; 16. connecting ring; 17. wire; 18. closed ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Reference Figure 1 -Attached Figure 4 , a GNSS satellite receiver, comprising:

[0026] A housing 1 having a chamber therein;

[0027] A top cover 2 is detachably arranged above the housing 1;

[0028] An inner shell 3, which has a shielding room therein and is located inside the chamber;

[0029] A main board 4 is arranged inside the shielding room;

[0030] A GNSS antenna 5 is fixedly arranged above the inner shell 3 and located inside the chamber;

[0031] Among them, the inner shell 3 is elastically connected to the outer shell 1, and at least one magnetic body 6 with N and S magnetic poles is arranged at the bottom of the inner shell 3. At least one closed loop 18 made of conductive material is fixedly arranged inside the outer shell 1. When the magnetic body 6 approaches or moves away from the closed loop 18, current is generated in the closed loop 18 to form a magnetic field, and the formed magnetic field always hinders the movement of the magnetic body 6.

[0032] Through the above technical scheme, the inner shell 3 and the outer shell 1 are elastically connected to form an elastic buffer between the vibration and the internal structure of the GNSS satellite receiver, and the reciprocating movement of the magnetic body 6 due to the elastic buffer cooperates with the fixed closed loop 18 to reversely hinder the reciprocating movement of the magnetic body 6, and the vibration energy is transmitted and converted to form magnetic energy to offset each other, thereby playing a role of rapid shock absorption.

[0033] The bottom center of the shell 1 is fixedly connected to a connecting rod 7, and the connecting rod 7 is fixedly connected to a mounting plate 8. A plurality of threaded holes 9 are provided on the mounting plate 8. The GNSS satellite receiver can be installed in the vehicle by bolting, and the top cover 2 is also installed on the top of the shell 1 by bolting.

[0034] The bottom of the inner shell 3 is fixedly connected to the fixing plate 10, the bottom center of the fixing plate 10 is fixedly connected to the disk 11, and the disk 11 is coaxially fixedly connected to the limiting ring 12. A plurality of springs 13 are also arranged inside the chamber. The plurality of springs 13 are arranged circumferentially. One end of the spring 13 is welded to the bottom wall of the chamber, and the other end contacts the disk 11. It is in a vertical state in the chamber, and the contact part is located inside the enclosed area of ​​the limiting ring 12, thereby supporting the inner shell 3, the main board 4 and the GNSS antenna 5.

[0035] A plurality of circularly arranged vertical rods 14 are fixedly disposed below the fixed plate 10. The magnetic body 6 is block-shaped and fixed inside the vertical rods 14. A first circularly arranged vertical cylinder 15 is fixedly disposed on the bottom wall of the chamber, corresponding to each vertical rod 14. A closed ring 18 is sleeved on the vertical cylinder 15. The inner diameter of the vertical cylinder 15 is larger than the outer diameter of the magnetic body 6.

[0036] A plurality of circumferentially arranged connecting rings 16 are provided inside the fixed plate 10, and the connecting rings 16 are located above the closed ring 18. Both the connecting rings 16 and the closed ring 18 have notches to form a first port and a second port. A conductive wire 17 is used to connect the first port of the connecting ring 16 to the first port of the closed ring 18, and the second port of the connecting ring 16 to the second port of the closed ring 18. Then, the direction of the current flowing through the closed ring 18 is opposite to the direction of the current flowing through the connecting ring 16, and the formed magnetic fields repel each other.

[0037] Working principle:

[0038] When the GNSS satellite receiver installed in the car is vibrated, the multiple springs 13 play a buffering role, but at the same time, the inner shell 3 will bump back and forth inside the chamber, causing the vertical rod 14 with the magnetic body 6 to move back and forth in the vertical direction. The movement of the magnetic body 6 causes the closed loop 18 to generate a current stroke magnetic field to hinder the movement of the magnetic body 6, and the vibration energy is transmitted and converted to form magnetic energy to offset each other;

[0039] The closed loop 18 generates an electric current to form a magnetic field that is always opposite to the magnetic field formed by the connecting ring 16, causing the closed loop 18 to form an upward force on the connecting ring 16, that is, to form an upward force on the fixing plate 10 and the inner shell 3, thereby reducing the influence of the spring 13 on the main board 4 inside the inner shell 3 and the external GNSS antenna 5, and reducing the degree of bumping of the main board 4 inside the inner shell 3 and the external GNSS antenna 5 during vibration.

[0040] It should be noted that:

[0041] The closed loop 18, the connecting ring 16 and the wire 17 connecting the two parts in the improved part of the present solution are made of conductive materials;

[0042] The upper ends of all springs 13 are located in the enclosed area of ​​the limiting ring 12, and multiple circumferentially arranged springs 13 are attached to the inner wall of the limiting ring 12. When the inner shell 3 shakes horizontally in the chamber, the springs 13 can play a corrective role, and at the same time, it also avoids direct contact between the vertical rod 14 and the vertical cylinder 15, so that the inner shell 3 is not in contact with the outer shell 1 around, reducing the transmission of vibration;

[0043] The magnetic field generated by the connecting ring 16 is always weaker than the magnetic field generated by the closed ring 18, and the thickness of the connecting ring 16 can be set to be smaller than the closed ring 18 or the outer diameter of the connecting ring 16 can be set to be smaller than the outer diameter of the closed ring 18;

[0044] The wire 17 has a sufficiently long length so as not to hinder the movement between the connecting ring 16 and the closed ring 18;

[0045] Reference Figure 3 , the dotted line direction indicates that the current directions of the connecting loop 16 and the closed loop 18 are always opposite, and does not mean that the dotted line direction does not change.

[0046] The present invention is conceived to:

[0047] In view of the special scenario where the GNSS satellite receiver is installed in a car that is prone to long-term and continuous vibration, in order to reduce the adverse effects of the GNSS satellite receiver caused by vibration, this solution uses a spring 13 for buffering, and uses Lenz's law to ensure that the magnetic field generated by the closed loop 18 always hinders the movement of the magnetic body 6, and further hinders the movement of the entire inner shell 3, thereby reducing the bumps generated by the inner shell 3 when vibrating;

[0048] At the same time, the present solution also utilizes the magnetic field generated by the closed loop 18 to support the entire inner shell 3, which is equivalent to a weakened version of "magnetic levitation", reducing the impact of the spring 13 buffering on the inner shell 3, that is, a connecting ring 16 is arranged in the fixed plate 10, and the connecting ring 16 is electrically connected to the closed loop 18. The connecting ring 16 always generates a magnetic field opposite to the closed loop 18, and the inner shell 3 is lightly suspended above the spring 13 through the mutual repulsion of opposite magnetic fields.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A GNSS satellite receiver, characterized in that: include: A housing (1) having a chamber therein; A top cover (2) is detachably disposed above the housing (1); An inner shell (3) having a shielding chamber therein and located inside the chamber; A main board (4) is arranged inside the shielding room; A GNSS antenna (5) is fixedly arranged above the inner shell (3) and located inside the chamber; The inner shell (3) and the outer shell (1) are elastically connected, at least one magnetic body (6) having N and S magnetic poles is arranged at the bottom of the inner shell (3), and at least one closed loop (18) made of a conductive material is fixedly arranged inside the outer shell (1), and when the magnetic body (6) approaches or moves away from the closed loop (18), a current is generated in the closed loop (18), forming a magnetic field, and the formed magnetic field always hinders the movement of the magnetic body (6).

2. A GNSS satellite receiver according to claim 1, characterized in that: The center of the bottom of the housing (1) is fixedly connected to a connecting rod (7), and the connecting rod (7) is fixedly connected to a mounting plate (8). A plurality of threaded holes (9) are provided on the mounting plate (8). The GNSS satellite receiver can be installed in the vehicle by means of bolt tightening, and the top cover (2) is also installed on the top of the housing (1) by means of bolt tightening.

3. A GNSS satellite receiver according to claim 1, characterized in that: The bottom of the inner shell (3) is fixedly connected to a fixing plate (10), the bottom center of the fixing plate (10) is fixedly connected to a disc (11), and the disc (11) is coaxially fixedly connected to a limiting ring (12). A plurality of springs (13) are also arranged inside the chamber. The plurality of springs (13) are arranged circumferentially. One end of the spring (13) is welded to the bottom wall of the chamber, and the other end is in contact with the disc (11). The spring (13) is in a vertical state in the chamber, and the contact portion is located inside the enclosed area of ​​the limiting ring (12).

4. A GNSS satellite receiver according to claim 3, characterized in that: A plurality of vertical rods (14) arranged in a circle are fixedly arranged below the fixed plate (10); the magnetic body (6) is in a block shape and fixed inside the vertical rods (14); a first vertical cylinder (15) arranged in a circle is fixedly arranged on the bottom wall of the chamber, corresponding to each vertical rod (14); a closed ring (18) is sleeved on the vertical cylinder (15); and the inner diameter of the vertical cylinder (15) is greater than the outer diameter of the magnetic body (6).

5. A GNSS satellite receiver according to claim 3, characterized in that: A plurality of circumferentially arranged connecting rings (16) are arranged inside the fixed plate (10), the connecting rings (16) are located above the closed ring (18), the connecting rings (16) and the closed ring (18) both have notches to form a first port and a second port, and a conductive wire (17) is used to connect the first port of the connecting ring (16) to the first port of the closed ring (18) and the second port of the connecting ring (16) to the second port of the closed ring (18), so that the direction of the current flowing in the closed ring (18) is opposite to the direction of the current flowing in the connecting ring (16), and the magnetic fields formed repel each other.

Images