A differential positioning handheld terminal with anti-interference function

Abstract

The utility model relates to the technical field of differential positioning handheld terminal, especially in a kind of differential positioning handheld terminal with anti-interference function, including rear shell, the front end of rear shell is fixedly connected with main body mechanism, the upper end rear portion of main body mechanism is fixedly connected with mounting block, the outside of mounting block is sleeved with a rope, and the front end of main body mechanism is provided with a protective piece.The utility model sets up the signal connection of anti-interference module and main control module by setting up anti-interference module, and the protective piece structure that can completely cover touch display screen and physical button and can be firmly closed is designed, effectively solve the positioning signal of terminal in prior art in complex electromagnetic environment is susceptible to interference, the problem of insufficient protection of core component, both guarantee the high-precision positioning stability of terminal in strong interference scene, and prolong the service life of equipment, improve operation reliability.

Description

Technical Field

[0001] This utility model relates to the field of differential positioning handheld terminal technology, and in particular to a differential positioning handheld terminal with anti-interference function. Background Technology

[0002] In today's field of differential positioning handheld terminals, accurate positioning and stable operation are of paramount importance. With the continuous development of technology, differential positioning handheld terminals have been widely used in many fields such as engineering surveying, geological exploration, and emergency rescue. However, there are still some problems in the existing technology that need to be solved.

[0003] For example, CN222529494U discloses a high-precision positioning handheld terminal, which includes: a terminal housing with an accommodating space, a controller disposed within the accommodating space, an RTK positioning component disposed within the terminal housing and electrically connected to the controller, the RTK positioning component being used to receive positioning information, and a wireless communication component.

[0004] While this patent achieves positioning functionality to a certain extent, the terminal's positioning signal is easily interfered with in complex electromagnetic environments, leading to a decrease in positioning accuracy. This makes it unsuitable for use in environments with strong electromagnetic interference, such as near power facilities or in city centers. Furthermore, the terminal's protective structure design is inadequate, and its screen and operation buttons are easily damaged by collisions and friction during daily carrying and use, affecting the normal operation of the device. Therefore, it is necessary to design a differential positioning handheld terminal with anti-interference capabilities to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a differential positioning handheld terminal with anti-interference function, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A differential positioning handheld terminal with anti-interference function includes a rear shell plate, a main body mechanism fixedly connected to the front end of the rear shell plate, a mounting block fixedly connected to the upper rear part of the main body mechanism, a hanging rope sleeved on the outside of the mounting block, and a protective component provided at the front end of the main body mechanism.

[0008] Preferably, the main body includes a housing, a touch screen is fixedly connected to the upper front part of the housing, connecting strips are fixedly connected to both the upper and lower front parts of the housing, an indicator light is fixedly connected to the right front part of the housing, multiple physical buttons are fixedly connected to the middle front part of the housing, a data port is provided at the lower left end of the housing, a data transmission interface is provided at the lower right end of the housing, a magnetic groove is opened at the middle right end of the housing, a power switch is fixedly connected to the upper right end of the housing, and two mounting rods are fixedly connected to each of the four corners of the rear end of the housing. The housing is fixedly connected to the front end of the rear shell plate through the mounting rods.

[0009] Preferably, a power supply unit is fixedly connected to the lower shell wall of the housing, and a differential signal processing module, a positioning module and a main control module are fixedly connected sequentially from left to right at the upper end of the power supply unit. A human-machine interaction module is fixedly connected to the middle of the front shell wall of the housing, and an anti-interference module is fixedly connected to the right rear end of the human-machine interaction module.

[0010] Preferably, the protective component includes an outer shell, with a magnetic block fixedly connected to the middle of the right end of the outer shell, and the upper left and lower left ends of the outer shell being movably connected to the opposite sides of the connecting strip via pivots.

[0011] Preferably, the touch display screen has a rectangular sheet structure, and each of the four corners of the touch display screen is provided with a rounded transition with a radius of 3mm. The two connecting strips are located above and below the touch display screen, respectively, and the connecting strips are long strips.

[0012] Preferably, the differential signal processing module, the positioning module, and the main control module are sequentially and bidirectionally electrically connected via an internal data bus. The output terminal of the main control module is electrically connected to the input terminal of the touch screen, and the output terminal of the human-computer interaction module is electrically connected to the input terminal of the main control module.

[0013] Preferably, the output terminal of the power supply unit is electrically connected to the input terminals of the differential signal processing module, the positioning module, the main control module, the human-machine interaction module, and the anti-interference module, respectively, and the signal output terminal of the anti-interference module is electrically connected to the signal input terminal of the main control module.

[0014] Preferably, the position of the magnetic block corresponds to the position of the magnetic groove, and the cross-section of the magnetic block is L-shaped. When the protective component is closed, the magnetic block can be embedded in the magnetic groove. The size of the outer shell is adapted to the size of the touch screen, and the outer shell completely covers the touch screen and physical buttons when closed.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, by setting an anti-interference module in the main structure and establishing a signal connection between it and the main control module, a targeted anti-interference mechanism is constructed. This anti-interference module can monitor and filter external electromagnetic interference signals in real time and transmit the processed stable signal to the main control module, blocking the interference effect from the key link of signal reception and processing. At the same time, the differential signal processing module and the positioning module are linked bidirectionally with the main control module through the internal data bus. With the cooperation of the anti-interference module, the basic positioning accuracy can be improved through differential operation, and the positioning signal can be ensured to be free from external interference during transmission and processing. This effectively makes up for the defects of the existing technology in which the positioning signal is easily interfered with and the accuracy decreases in complex electromagnetic environment, and meets the positioning reliability requirements of engineering surveying, geological exploration and other scenarios.

[0017] 2. In this utility model, the outer shell of the protective component is movably connected to the connecting strip of the main body mechanism via a pivot, allowing for flexible opening and closing. The outer shell's size matches the touchscreen display, and when closed, it completely covers the touchscreen display and physical buttons, preventing scratches and damage to the core operating components due to collisions or friction during transport or operation. Furthermore, the outer shell achieves a secure closure through a magnetic block cooperating with the magnetic groove of the main body mechanism, preventing accidental opening and subsequent protection failure, further enhancing the protective effect. This design effectively solves the problems of insufficient terminal protection structure and easy damage to core components in existing technologies. It ensures the clarity of the touchscreen display and the sensitivity of the physical buttons, reduces equipment failures caused by component damage, extends the overall service life of the terminal, and improves the durability of the equipment during long-term outdoor operation. Attached Figure Description

[0018] Figure 1 This is a first-view structural diagram of a differential positioning handheld terminal with anti-interference function according to the present invention.

[0019] Figure 2 This is a schematic diagram of the second-view structure of a differential positioning handheld terminal with anti-interference function according to the present invention.

[0020] Figure 3 This is a schematic diagram of the front side structure of a differential positioning handheld terminal with anti-interference function according to the present invention.

[0021] Figure 4 This is a schematic diagram of the rear structure of a differential positioning handheld terminal with anti-interference function according to the present invention.

[0022] Figure 5 This is a schematic diagram of the disassembled structure of a differential positioning handheld terminal with anti-interference function according to the present invention.

[0023] In the diagram: 1. Rear shell; 2. Main body; 3. Hanging rope; 4. Mounting block; 5. Protective component; 21. Main shell; 22. Touch screen; 23. Connecting strip; 24. Indicator light; 25. Mounting rod; 26. Data port; 27. Physical button; 28. Data transmission interface; 29. ​​Magnetic slot; 210. Power switch; 211. Anti-interference module; 212. Power supply unit; 213. Main control module; 214. Positioning module; 215. Differential signal processing module; 216. Human-machine interaction module; 51. Magnetic block; 52. Outer shell. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-5 This utility model provides a technical solution:

[0028] A differential positioning handheld terminal with anti-interference capabilities, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a rear shell plate 1, a main body mechanism 2 fixedly connected to the front end of the rear shell plate 1, an mounting block 4 fixedly connected to the upper rear part of the main body mechanism 2, a hanging rope 3 sleeved on the outside of the mounting block 4, and a protective component 5 provided at the front end of the main body mechanism 2.

[0029] Please see Figure 3 , Figure 4 and Figure 5 The main body 2 includes a housing 21. A touch screen 22 is fixedly connected to the upper front of the housing 21. Connecting strips 23 are fixedly connected to both the upper and lower front of the housing 21. An indicator light 24 is fixedly connected to the right front of the housing 21. Multiple physical buttons 27 are fixedly connected to the middle front of the housing 21. A data port 26 is provided at the lower left end of the housing 21. A data transmission interface 28 is provided at the lower right end of the housing 21. An opening is located at the middle right end of the housing 21. The housing 21 has a magnetic slot 29. A switch 210 is fixedly connected to the upper right end of the housing 21. Two mounting rods 25 are fixedly connected to each of the four corners of the rear end of the housing 21. The housing 21 is fixedly connected to the front end of the rear shell plate 1 via the mounting rods 25. A power supply unit 212 is fixedly connected to the lower shell wall of the housing 21. A differential signal processing module 215, a positioning module 214, and a main control module 213 are fixedly connected to the upper end of the power supply unit 212 from left to right. The middle of the front shell wall of the housing 21 is fixedly connected to... A human-machine interaction module 216 is connected to the rear right side of the human-machine interaction module 216, and an anti-interference module 211 is fixedly connected thereto. The touch screen 22 has a rectangular sheet structure, and each of the four corners of the touch screen 22 is provided with a 3mm radius arc transition. Two connecting strips 23 are located above and below the touch screen 22, and the connecting strips 23 are long strips. The differential signal processing module 215, the positioning module 214 and the main control module 213 are sequentially and bidirectionally electrically connected through an internal data bus. The output end of the main control module 213 is electrically connected to the input end of the touch screen 22. The output end of the human-machine interaction module 216 is electrically connected to the input end of the main control module 213. The output end of the power supply unit 212 is electrically connected to the input ends of the differential signal processing module 215, the positioning module 214, the main control module 213, the human-machine interaction module 216 and the anti-interference module 211, respectively. The signal output end of the anti-interference module 211 is electrically connected to the signal input end of the main control module 213.

[0030] Through the above scheme: the differential positioning handheld terminal with anti-interference function can adopt the main body 2 of DPH-2000. Its upper front end uses a rectangular TFT-LCD4.3 touch screen 22 with 3mm rounded corners to visualize positioning information and the operation interface. The long strip connecting the upper and lower front ends 23 provides a swivel mounting point for the protective component 5. The LED-3528 indicator light 24 on the right side of the front end indicates the device's power supply, positioning status, and data transmission status. Multiple physical buttons 27 (TS-020) in the middle of the front end, in conjunction with the HMI-800 human-machine interface module 216, enable user command input. Furthermore, the output of the human-machine interface module 216 is electrically connected to the input of the main control module 213 (MCU-STM32H743) to ensure efficient transmission of operation commands. The USB-C3.1 data port 26 on the lower left side of the housing 21 and the RS232 data transmission interface 28 on the lower right side respectively meet the requirements for high-speed data input and device interconnection. The magnetic groove 29 in the middle of the right side can cooperate with the magnetic block 51 of the protective component 5 to achieve a stable closure. The PBS-12D on / off switch 210 on the upper right side is used for device start / stop control. The mounting rods 25 at the four corners of the rear end firmly fix the housing 21 to the front end of the rear shell plate 1, ensuring the overall structural stability. Internally, the lower shell wall... The Battery-5000mAh power supply unit 212 provides continuous power support for the DSP-TMS320C6748 differential signal processing module 215, the GNSS-M8T positioning module 214, the main control module 213, the human-machine interface module 216, and the RF-AN100 anti-interference module 211. After receiving satellite positioning signals, the positioning module 214 transmits them to the differential signal processing module 215 for differential operation to improve positioning accuracy. Both modules are bidirectionally electrically connected to the main control module 213 via an internal data bus to achieve efficient signal interaction. The signal output terminal of the anti-interference module 211 is electrically connected to the signal input terminal of the main control module 213. This system effectively filters external electromagnetic interference signals, ensuring the stability of the positioning signal. The main control module 213 transmits the processed precise positioning information and device status data to the touch screen 22 for display. Through the coordinated operation of various components, this solution not only achieves centimeter-level high-precision positioning by combining the differential signal processing module 215 and the positioning module 214, but also significantly improves the reliability of the device in complex electromagnetic environments through the anti-interference module 211. The interaction method combining physical buttons 27 and touch screen 22 enhances the ease of operation, effectively meeting the needs of engineering surveying, geological exploration and other scenarios for high-precision, anti-interference, portable and easy-to-use differential positioning handheld terminals, and improving work efficiency and data accuracy.

[0031] Please see Figure 1 and Figure 2The protective component 5 includes an outer shell 52. A magnetic block 51 is fixedly connected to the middle of the right end of the outer shell 52. The upper left and lower left ends of the outer shell 52 are movably connected to the opposite sides of the connecting strip 23 by a pivot. The position of the magnetic block 51 corresponds to the position of the magnetic groove 29, and the cross-section of the magnetic block 51 is L-shaped. When the protective component 5 is closed, the magnetic block 51 can be embedded in the magnetic groove 29. The size of the outer shell 52 is adapted to the size of the touch screen 22, and when the outer shell 52 is closed, it completely covers the touch screen 22 and the physical button 27.

[0032] Through the above scheme: In the protective component 5 of the differential positioning handheld terminal with anti-interference function, the outer shell 52 is movably connected to the opposite face of the connecting strip 23 via the upper left and lower left pivots, respectively, to achieve flexible rotation. The magnetic block 51 fixedly connected to the middle of its right end has an L-shaped cross-section, which corresponds to the position of the magnetic groove 29 opened in the middle of the right end of the shell 21. When the protective component 5 is closed, the magnetic block 51 can be embedded in the magnetic groove 29, and a stable closure is achieved by using magnetic attraction. At the same time, the size of the outer shell 52 is consistent with the touch screen. The size of 22 is suitable, and when closed, it can completely cover the touch screen 22 and physical buttons 27. This design allows the touch screen 22 and physical buttons 27 to be effectively protected by the closing protective part 5 when the handheld terminal is not in use, avoiding damage due to collision and friction. This ensures the display clarity of the touch screen 22 and the sensitive operation of the physical buttons 27. At the same time, the magnetic closing structure is convenient to operate and opens and closes smoothly. Together with the main body mechanism 2, it ensures the stable and reliable operation of the differential positioning handheld terminal.

[0033] It should be noted that this utility model is a differential positioning handheld terminal with anti-interference function. When the differential positioning handheld terminal with anti-interference function is working, the power supply unit 212, which is fixedly connected to the lower shell wall of the main body 2, first supplies power to the entire terminal. Its output terminal is electrically connected to the input terminals of the differential signal processing module 215, positioning module 214, main control module 213, human-computer interaction module 216, and anti-interference module 211, respectively, to ensure the normal operation of each module. The positioning module 214 first receives the external positioning signal, and then transmits the signal to the differential signal processing module 215, which is bidirectionally electrically connected to it through the internal data bus. The signal processing module 215 performs differential signal processing on the positioning signal to improve positioning accuracy. The processed signal is then transmitted to the main control module 213, which is also bidirectionally electrically connected, via an internal data bus. Simultaneously, the anti-interference module 211, whose signal output is electrically connected to the signal input of the main control module 213, monitors and filters external interference signals in real time, feeding back the anti-interference processed signal to the main control module 213 to ensure stable and reliable signal reception. The main control module 213 then comprehensively processes the received precise positioning signal and anti-interference signal, transmitting the processing result to its output. The electrically connected touch screen 22 has a rectangular sheet structure with 3mm rounded corners for display. Users can operate the device via multiple physical buttons 27 fixedly connected to the front center of the housing 21 in the main body 2, or via the touch screen 22. These operation commands are transmitted to the main control module 213 via an electrical connection between the output of the human-machine interface module 216 and the input of the main control module 213, enabling human-machine interaction. When the terminal is not in use, the outer shell 52 of the protective component 5, whose size is adapted to the touch screen 22, can be movably connected via a connecting strip 23 between the upper left and lower left pivots. Two connecting strips 23 are located above and below the touch screen 22 respectively and are long and closed, so that the magnetic block 51 fixedly connected to the middle right end of the outer shell 52 has an L-shaped cross section and is embedded in the magnetic groove 29 opened in the middle right end of the shell 21. At this time, the outer shell 52 completely covers the touch screen 22 and the physical button 27, which plays a protective role. The entire terminal is structurally supported by the main body mechanism 2 fixedly connected to the front end of the rear shell 1. The hanging rope 3 sleeved on the outside of the mounting block 4 fixedly connected to the upper rear end of the main body mechanism 2 makes it easy to carry the terminal. Finally, the differential positioning handheld terminal with anti-interference function is accurately positioned, stably operated and conveniently used.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A differential positioning handheld terminal with anti-interference function, characterized in that: Includes a rear shell plate (1), the front end of which is fixedly connected to a main body mechanism (2), the upper rear part of which is fixedly connected to an installation block (4), the outer side of which is fitted with a hanging rope (3), and the front end of which is provided with a protective component (5).

2. The differential positioning handheld terminal with anti-interference function according to claim 1, characterized in that: The main body (2) includes a housing (21). A touch screen (22) is fixedly connected to the upper front end of the housing (21). A connecting strip (23) is fixedly connected to both the upper and lower front ends of the housing (21). An indicator light (24) is fixedly connected to the right front end of the housing (21). Multiple physical buttons (27) are fixedly connected to the middle front end of the housing (21). A data port (26) is provided at the lower left end of the housing (21). A data transmission interface (28) is provided at the lower right end of the housing (21). A magnetic groove (29) is opened at the middle right end of the housing (21). A power switch (210) is fixedly connected to the upper right end of the housing (21). Two mounting rods (25) are fixedly connected to the four corners of the rear end of the housing (21). The housing (21) is fixedly connected to the front end of the rear shell plate (1) through the mounting rods (25).

3. A differential positioning handheld terminal with anti-interference function according to claim 2, characterized in that: A power supply unit (212) is fixedly connected to the lower shell wall of the housing (21). A differential signal processing module (215), a positioning module (214) and a main control module (213) are fixedly connected to the upper end of the power supply unit (212) from left to right. A human-machine interaction module (216) is fixedly connected to the middle of the front shell wall of the housing (21). An anti-interference module (211) is fixedly connected to the right rear end of the human-machine interaction module (216).

4. A differential positioning handheld terminal with anti-interference function according to claim 1, characterized in that: The protective component (5) includes an outer shell (52), and a magnetic block (51) is fixedly connected to the middle of the right end of the outer shell (52). The upper left and lower left parts of the outer shell (52) are respectively rotatably connected to the opposite side of the connecting strip (23).

5. A differential positioning handheld terminal with anti-interference function according to claim 2, characterized in that: The touch display screen (22) has a rectangular sheet structure, and the four corners of the touch display screen (22) are provided with a rounded transition with a radius of 3mm. The two connecting strips (23) are located above and below the touch display screen (22) respectively, and the connecting strips (23) are long strips.

6. A differential positioning handheld terminal with anti-interference function according to claim 3, characterized in that: The differential signal processing module (215), the positioning module (214), and the main control module (213) are sequentially and bidirectionally electrically connected through an internal data bus. The output terminal of the main control module (213) is electrically connected to the input terminal of the touch screen (22), and the output terminal of the human-computer interaction module (216) is electrically connected to the input terminal of the main control module (213).

7. A differential positioning handheld terminal with anti-interference function according to claim 3, characterized in that: The output terminal of the power supply unit (212) is electrically connected to the input terminals of the differential signal processing module (215), the positioning module (214), the main control module (213), the human-machine interaction module (216), and the anti-interference module (211), respectively. The signal output terminal of the anti-interference module (211) is electrically connected to the signal input terminal of the main control module (213).

8. A differential positioning handheld terminal with anti-interference function according to claim 4, characterized in that: The position of the magnetic block (51) corresponds to the position of the magnetic groove (29), and the cross-section of the magnetic block (51) is L-shaped. When the protective part (5) is closed, the magnetic block (51) can be embedded in the magnetic groove (29). The size of the outer shell (52) is adapted to the size of the touch screen (22), and when the outer shell (52) is closed, it completely covers the touch screen (22) and the physical buttons (27).

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