RTK measurement device based on extended communication structure
By splitting the RTK measurement device into a core board and a replaceable communication board, and combining a composite connection and cross-board heat dissipation design, the problems of unstable data transmission and easy damage of modular design in traditional RTK devices in complex environments are solved, achieving efficient data transmission and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JIAOTONG PINGWAN EXPRESSWAY CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional RTK measurement devices suffer from unstable data transmission when blocked by buildings or mountain obstacles, and their modular design is prone to loosening, oxidation, and overheating in the field, affecting measurement accuracy and efficiency.
The composite connection structure is adopted, which splits the RTK measurement device into a core board and a replaceable communication board. Combined with mechanical locking, foolproof guidance and sealing structure, electrical connection and environmental sealing are achieved. Through cross-board collaborative heat dissipation design, the communication module is automatically identified.
It improves the stability and continuity of data transmission, adapts to complex environments, reduces production and usage costs, simplifies operation processes, and expands application scenarios.
Smart Images
Figure CN224417035U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of GNSS measurement equipment technology, and more specifically, to an RTK measurement device based on an extended communication structure. Background Technology
[0002] In traditional RTK operation mode, the base station transmits its observations and station coordinates to the rover via a data radio. The rover receives the data from the base station, collects GNSS observation data, processes it in real time, and provides centimeter-level positioning results. However, traditional data radios are affected by environmental factors and power attenuation; when encountering obstacles such as buildings or mountains, the data transmission effect and distance cannot meet expectations. Compared with traditional data radios, GSM, CDMA, and 4G data communication methods based on operator base stations have unparalleled advantages, but these methods also cannot operate in remote mountainous areas or other areas without operator base stations.
[0003] Therefore, RTK measurement device manufacturers typically need to develop multiple devices that differ only in communication mode, requiring users to choose the appropriate one based on site conditions, increasing costs and inconvenience. More seriously, traditional modular designs rely solely on simple electrical connections, which pose risks such as loose connectors, interface oxidation due to moisture, and overheating of communication modules in high-vibration, humid, dusty, and temperature-varying environments. This leads to unstable data transmission, severely impacting measurement accuracy and operational efficiency.
[0004] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an RTK measurement device based on an extended communication structure.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an RTK measurement device based on an extended communication structure, comprising:
[0007] case;
[0008] A communication board housed within a housing is provided with a board-to-board connector plug, at least one communication module, and at least two fixing through holes distributed at the outer peripheral edge of the communication board.
[0009] The RTK measurement core board housed in the housing has a board-to-board connector socket adapted to the board-to-board connector plug and a fixing post corresponding to the fixing through hole on the side opposite to the communication board.
[0010] The communication board is detachably mounted to the RTK measurement core board via fastening screws, fixing through holes, and fixing posts.
[0011] The RTK measurement core board achieves electrical communication with the communication board through the plug-in connection of the board-to-board connector plug and the board-to-board connector socket.
[0012] Furthermore, an annular sealing groove is provided around the board-to-board connector socket, and an elastic waterproof sealing ring is attached to the communication board corresponding to the annular sealing groove. When the communication board is locked to the RTK measurement core board by fastening screws, the elastic waterproof sealing ring is pressed into the annular sealing groove, forming a reliable waterproof and dustproof barrier.
[0013] Furthermore, the board-to-board connector plug has a foolproof angle on one side to ensure that the communication board can only be aligned and inserted with the core board in the only correct direction and position.
[0014] Furthermore, the communication board is provided with a first heat dissipation area, which is connected to the communication module on the communication board via a thermally conductive silicone pad;
[0015] The RTK measurement core board has a second heat dissipation area corresponding to the first heat dissipation area, wherein the area of the first heat dissipation area is larger than the area of the second heat dissipation area.
[0016] When the communication board is installed on the RTK measurement core board, the first heat dissipation area and the second heat dissipation area are closely attached to each other, forming an efficient heat conduction path, which quickly conducts the heat generated by the communication module to the RTK measurement core board for heat dissipation.
[0017] Furthermore, the first heat dissipation area and the second heat dissipation area are copper-clad areas or metal heat sinks, and the housing is a metal housing.
[0018] Furthermore, thermally conductive silicone pads are respectively provided between the communication board, the RTK measurement core board and the metal housing, so as to conduct the heat on the communication board and the RTK measurement core board to the metal housing through the thermally conductive silicone pads, thereby realizing rapid heat dissipation.
[0019] Furthermore, the board-to-board connector plug is provided with two ID identification pins, which are connected to the ground wire or left floating. On communication boards with different hardware specifications (such as radio only, 4G only, dual-module), the ID identification pins are grounded or left floating in different combinations through PCB routing to form a fixed hardware level code, so that the RTK measurement core board can automatically identify the type of the currently inserted communication board by reading the level state of the ID identification pins.
[0020] Furthermore, the housing includes a housing body and a cover plate. The RTK measurement core board and the communication board are both located inside the housing body. The cover plate can be opened and closed to cover the housing body, thereby facilitating the replacement of the communication board.
[0021] Furthermore, the communication module includes a data transmission radio module and / or a 4G communication module.
[0022] Furthermore, the RTK measurement core board is equipped with a power supply module, an MCU control module, and an antenna module. The power supply module is used to supply power to the RTK measurement core board and the communication board.
[0023] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model separates the traditional integrated motherboard into a core board and a replaceable communication board, and reliably combines the two together through a carefully designed composite connection structure.
[0024] Through an innovative composite connection structure, it integrates mechanical locking and foolproof guidance functions, effectively resisting vibration and impact during field operations, eliminating mis-insertion operations, and ensuring the stability and continuity of data transmission for RTK equipment under harsh working conditions.
[0025] The design of the collaborative compression sealing structure and the cross-plate collaborative heat dissipation structure cleverly solves the problems of waterproofing, dustproofing and heat dissipation brought about by modularization, enabling the device to adapt to complex environments such as humidity, dust, high and low temperatures, and greatly expanding the application scenarios of the equipment.
[0026] The plug-and-play hardware identification structure replaces the traditional manual DIP switches, enabling automatic identification and configuration of communication modules. This simplifies the process of replacing communication boards on-site, lowers the barrier to entry, and enhances the user experience.
[0027] It retains the core advantages of modular design, allowing users to flexibly select or replace communication boards of different specifications according to their operational needs, while manufacturers can mass-produce low-cost communication boards and a suitable number of core boards, effectively reducing the overall costs of production, inventory, and users. Attached Figure Description
[0028] Figure 1 This is an exploded view of the structure of this utility model.
[0029] Figure 2 This is a front view of the communication board of this utility model.
[0030] In the diagram: 1. RTK measurement core board; 2. Communication board; 3. Board-to-board connector plug; 4. Fixing post; 5. Fastening screw; 6. Board-to-board connector socket; 7. Anti-foolproof bevel; 8. Annular sealing groove; 9. Elastic waterproof sealing ring; 10. Communication module; 11. Thermal conductive silicone pad; 12. First heat dissipation area; 13. Second heat dissipation area; 14. ID identification pin; 15. Housing body; 16. Cover plate. Detailed Implementation
[0031] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0032] Example 1
[0033] This embodiment provides an RTK measurement device based on an extended communication structure, including an RTK measurement core board 1 and a detachably connected communication board 2. The RTK measurement core board 1 and the communication board 2 are fixed together by a composite connection structure that integrates electrical connection, mechanical locking, foolproof guidance, and environmental sealing.
[0034] Specifically, such as Figure 1 and Figure 2 As shown, the RTK measurement device includes:
[0035] Housing; specifically, the housing includes a housing body 15 and a cover plate 16, the cover plate 16 being closable and covering the housing body 15, thereby facilitating opening for replacement of the communication board 2;
[0036] The communication board 2 housed in the housing is provided with a board-to-board connector plug 3, at least one communication module 10, and at least two fixing through holes distributed on the outer peripheral edge of the communication board 2. Preferably, the communication module 10 includes a data transmission radio module and / or a 4G communication module.
[0037] The RTK measurement core board 1 housed in the housing has a board-to-board connector socket 6 adapted to the board-to-board connector plug 3 and a fixing post 4 corresponding to the fixing through hole on the side opposite to the communication board 2; preferably, the RTK measurement core board 1 is provided with a power module, an MCU control module and an antenna module, and the power module is used to supply power to the RTK measurement core board 1 and the communication board 2.
[0038] The communication board 2 is detachably mounted to the RTK measurement core board 1 by means of fastening screws 5, fixing through holes and fixing posts 4. The fastening screws 5 can firmly lock the communication board 2 to the RTK measurement core board 1, thus effectively resisting the bumps and vibrations encountered by the equipment during transportation and operation, and preventing the board-to-board connector plug 3 and board-to-board connector socket 6 from loosening due to vibration.
[0039] The RTK measurement core board 1 achieves electrical communication with the communication board 2 through the connection of the board-to-board connector plug 3 and the board-to-board connector socket 6.
[0040] Furthermore, an annular sealing groove 8 is provided around the board-to-board connector socket 6, and an elastic waterproof sealing ring 9 is attached to the communication board 2 corresponding to the annular sealing groove 8. When the communication board 2 is locked to the RTK measurement core board 1 by the fastening screw 5, the pressure generated will cause the elastic waterproof sealing ring 9 to be pressed into the annular sealing groove 8, thereby forming an IP67-level sealing line on the mating surface of the communication board 2 and the RTK measurement core board 1, effectively preventing moisture and dust from entering the inside of the device and protecting the precision circuit.
[0041] Furthermore, the board-to-board connector plug 3 has a foolproof angle 7 on one side to ensure that during field replacement, the communication board 2 can only be aligned and inserted with the RTK measurement core board 1 in the only correct direction and position. In other embodiments, positioning pins and positioning holes can also be provided, and the foolproof design can be achieved through the cooperation of the positioning pins and positioning holes.
[0042] Furthermore, the communication board 2 is provided with a first heat dissipation area 12, which is connected to the communication module on the communication board 2 through a thermally conductive silicone pad 11.
[0043] The RTK measurement core board 1 has a second heat dissipation area 13 corresponding to the first heat dissipation area 12, wherein the area of the first heat dissipation area 12 is larger than the area of the second heat dissipation area 13.
[0044] When the communication board 2 is installed on the RTK measurement core board 1, the first heat dissipation area 12 and the second heat dissipation area 13 are closely attached to form an efficient heat conduction path, which quickly conducts the heat generated by the communication module 10 to the RTK measurement core board 1 for heat dissipation.
[0045] Since all the electronic components and board-to-board connector plugs 3 of the communication board 2 are located on the bottom surface of the communication board 2, and all the electronic components and board-to-board connector sockets 6 of the RTK measurement core board 1 are located on the front surface of the RTK measurement core board 1, a complete heat dissipation plane is formed on the front surface of the communication board 2 and the bottom surface of the RTK measurement core board 1.
[0046] In specific implementation, the first heat dissipation area 12 and the second heat dissipation area 13 are copper-clad areas or metal heat sinks, and the housing is a metal housing.
[0047] In actual installation, thermally conductive silicone pads 11 can be respectively placed between the communication board 2, the RTK measurement core board 1 and the metal housing, so as to conduct the heat on the communication board 2 and the RTK measurement core board 1 to the metal housing through the thermally conductive silicone pads 11, thereby achieving rapid heat dissipation.
[0048] As can be seen, this embodiment adopts a cross-board collaborative heat dissipation design, which allows heat to be quickly conducted from the smaller communication board 2 to the larger RTK measurement core board 1, and dissipated through the overall casing, effectively avoiding local overheating.
[0049] Furthermore, the board-to-board connector plug 3 is provided with two ID identification pins 14 (ID1, ID2), which are connected to the ground wire or left floating.
[0050] On communication boards 2 with different hardware specifications (such as radio only, 4G only, dual-module), the ID identification pin 14 is grounded or left floating in different combinations through PCB wiring to form a fixed hardware level code.
[0051] For example, if the communication board 2A only includes a data transmission radio module, then ID1 is set to ground and ID2 is left floating.
[0052] If the communication board 2B only includes a 4G communication module, then ID1 is left floating and ID2 is grounded.
[0053] If the communication board 2C includes a data transmission radio module and a 4G communication module, then both ID1 and ID2 are set to ground.
[0054] The RTK measurement core board 1 automatically identifies the type of the currently inserted communication board 2 by reading the level state of the ID identification pin 14, and loads the corresponding software functions. No manual DIP switch settings are required from the user, and the whole process is transparent to the user, achieving true "plug and play".
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. An RTK measurement device based on an extended communication structure, characterized in that, include: case; A communication board housed within a housing is provided with a board-to-board connector plug, at least one communication module, and at least two fixing through holes distributed at the outer peripheral edge of the communication board. The RTK measurement core board housed in the housing has a board-to-board connector socket adapted to the board-to-board connector plug and a fixing post corresponding to the fixing through hole on the side opposite to the communication board. The communication board is detachably mounted to the RTK measurement core board via fastening screws, fixing through holes, and fixing posts. The RTK measurement core board achieves electrical communication with the communication board through the plug-in connection of the board-to-board connector plug and the board-to-board connector socket.
2. The RTK measurement device based on extended communication structure according to claim 1, characterized in that: The board-to-board connector socket is surrounded by an annular sealing groove, and an elastic waterproof sealing ring is attached to the communication board corresponding to the annular sealing groove.
3. The RTK measurement device based on an extended communication structure according to claim 1 or 2, characterized in that: The board-to-board connector plug has a foolproof angle on one side.
4. The RTK measurement device based on an extended communication structure according to claim 1 or 2, characterized in that: The communication board is provided with a first heat dissipation area, which is connected to the communication module on the communication board through a thermally conductive silicone pad; The RTK measurement core board has a second heat dissipation area corresponding to the first heat dissipation area, wherein the area of the first heat dissipation area is larger than the area of the second heat dissipation area.
5. The RTK measurement device based on an extended communication structure according to claim 4, characterized in that: The first heat dissipation area and the second heat dissipation area are copper-clad areas or metal heat sinks, and the housing is a metal housing.
6. The RTK measurement device based on an extended communication structure according to claim 5, characterized in that: Thermally conductive silicone pads are respectively provided between the communication board, the RTK measurement core board and the metal housing.
7. The RTK measurement device based on an extended communication structure according to claim 1, 2, 4, or 5, characterized in that: The board-to-board connector plug is provided with two ID identification pins, which are either connected to the ground wire or left floating.
8. The RTK measurement device based on an extended communication structure according to claim 7, characterized in that... The housing includes a housing body and a cover plate. The RTK measurement core board and the communication board are both located inside the housing body. The cover plate can be opened and closed to cover the housing body.
9. The RTK measurement device based on an extended communication structure according to claim 7, characterized in that: The communication module includes a data transmission radio module and / or a 4G communication module.
10. The RTK measurement device based on an extended communication structure according to claim 8 or 9, characterized in that... The RTK measurement core board is equipped with a power module, an MCU control module, and an antenna module. The power module is used to supply power to the RTK measurement core board and the communication board.