A range finder

Abstract

The application provides a range finder, comprising a range finder body, a laser ranging module and a display screen; the laser ranging module is arranged on the range finder body and is used for measuring the distance of a target position; the display screen is electrically connected with the laser ranging module and is used for displaying the measurement data of the laser ranging module; the display screen comprises a first display unit and a second display unit, the first display unit and the second display unit are independent functional units, the first display unit is used for displaying the measurement data in real time, and the second display unit can keep displaying the interface before power-off under the power-off state of the range finder. The range finder provided by the application effectively avoids the problem that the measurement data is lost due to power consumption of the traditional range finder, and the user does not need to rely on paper and pen or sketch to record data, so that the operation process is simplified.

Description

Technical Field

[0001] This disclosure generally relates to the field of ranging equipment technology, and specifically to a rangefinder. Background Technology

[0002] Laser rangefinders are commonly used distance measuring instruments in the field of measurement. They can quickly and accurately measure the distance between two points and are widely used in various scenarios such as building construction, engineering inspection, and interior decoration. They provide users with a convenient tool for obtaining distance data and are indispensable equipment in various scenarios that require accurate distance measurement.

[0003] After a laser rangefinder has completed a measurement, users need to record the data with pen and paper or draw a sketch to record it, which is cumbersome. Moreover, when the power is depleted, the measurement data that is not recorded in time is easily lost, and the measurement interface before the power failure cannot be retained, making data traceability difficult. This not only affects the measurement efficiency, but also brings a poor user experience, making it difficult to meet users' needs for convenient retention and reliable traceability of measurement data. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a rangefinder to solve the above problems.

[0005] This application provides a rangefinder, including a rangefinder body, a laser ranging module, and a display screen; the laser ranging module is disposed on the rangefinder body and is used to measure the distance to a target location; the display screen is electrically connected to the laser ranging module and is used to display the measurement data of the laser ranging module; the display screen includes a first display unit and a second display unit, the first display unit and the second display unit are independent functional units, the first display unit is used to display the measurement data in real time, and the second display unit can maintain the display of the interface before the power failure when the rangefinder is powered off.

[0006] According to the technical solution provided in the embodiments of this application, the second display unit is an electronic paper ink screen or a cholesterol liquid crystal display screen.

[0007] According to the technical solution provided in the embodiments of this application, the first display unit and the second display unit are two independent screens, which are respectively assembled at different assembly positions of the rangefinder body.

[0008] According to the technical solution provided in the embodiments of this application, the first display unit and the second display unit are integrated on the same screen, and their respective functions are realized through screen partitioning.

[0009] According to the technical solution provided in the embodiments of this application, the first display unit and the second display unit are respectively mounted on two adjacent surfaces of the rangefinder body, and the setting plane perpendicular to the ranging direction intersects with the first display unit and the second display unit respectively.

[0010] According to the technical solution provided in the embodiments of this application, the rangefinder further includes a groove, which is disposed on the side of the rangefinder body opposite to the side where the second display unit is disposed, and the groove is used to fit the outer wall of the tubular part to be measured.

[0011] According to the technical solution provided in the embodiments of this application, the rangefinder further includes a magnetic suction component, which is disposed on the side of the rangefinder body opposite to the side where the second display unit is located.

[0012] According to the technical solution provided in the embodiments of this application, the rangefinder further includes a function button, which is located on the side of the setting plane away from the laser emission position of the rangefinder.

[0013] According to the technical solution provided in the embodiments of this application, the rangefinder body is also equipped with an electronic sensor, which is used to acquire tilt angle data to measure levelness.

[0014] According to the technical solution provided in the embodiments of this application, along the laser emission direction of the laser ranging module, light indicator modules are provided at intervals on the rangefinder body. The light indicator modules are used to indicate the deflection direction of the rangefinder when measuring the levelness.

[0015] Compared with existing technologies, the advantages of this application are as follows: By setting the display screen as an independent first display unit and second display unit, the first display unit can present the measurement data of the laser rangefinder module in real time, meeting the user's real-time observation needs; the second display unit can maintain the interface display before the power failure after the rangefinder is powered off, effectively avoiding the problem of measurement data loss due to power depletion in traditional rangefinders, eliminating the need for users to rely on pen and paper or sketches to record data, and simplifying the operation process. At the same time, the design of still being able to view the measurement interface after power failure ensures the retention and traceability of measurement data, improves the ease of use and reliability of the rangefinder, and optimizes the user experience. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the rangefinder provided in Example 1; Figure 2 for Figure 1 The front view of the rangefinder shown; Figure 3 for Figure 1 Left view of the rangefinder shown; Figure 4 for Figure 1 The right view of the rangefinder shown; Figure 5 This is a schematic diagram of the rangefinder provided in Example 2; Figure 6 for Figure 5 The right view of the rangefinder shown; Figure 7 This is a schematic diagram of the rangefinder provided in Example 4; Figure 8 for Figure 7 The right view of the rangefinder shown.

[0017] Reference numerals: 10. Rangefinder body; 11. Magnetic attachment; 12. Function button; 13. Light indicator module; 20. Laser rangefinder module; 30. Display screen; 31. First display unit; 32. Second display unit; 40. Charging cover. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Example 1 Please refer to Figures 1-4 This embodiment provides a rangefinder, including a rangefinder body 10, a laser ranging module 20, and a display screen 30. The laser ranging module 20 is disposed on the rangefinder body 10 and is used to measure the distance to a target location. The display screen 30 is electrically connected to the laser ranging module 20 and is used to display the measurement data of the laser ranging module 20. The display screen 30 includes a first display unit 31 and a second display unit 32. The first display unit 31 and the second display unit 32 are independent functional units. The first display unit 31 is used to display the measurement data in real time, and the second display unit 32 can maintain the display of the interface before the power failure when the rangefinder is powered off.

[0021] Specifically, the rangefinder body 10 is the rangefinder shell, i.e., the overall structural carrier; the laser ranging module 20 is fixedly mounted to the front end of the rangefinder body 10, and its laser emission direction is consistent with the ranging direction. It is used to emit laser light towards the target position and receive the reflected signal, thereby calculating the distance data between the two points. The display screen 30 is mounted on the surface of the rangefinder body 10 and is electrically connected to the laser ranging module 20 through built-in circuitry, and can receive the measurement data transmitted by the laser ranging module 20 in real time.

[0022] The display screen 30 includes a first display unit 31 and a second display unit 32, each with its own independent functional logic. When the rangefinder is powered on and operating normally, the laser ranging module 20 transmits the measured distance data to the first display unit 31 in real time, allowing users to visually view the current measurement results and meet real-time observation needs. When the rangefinder loses power due to reasons such as battery depletion, the second display unit 32 retains the interface state before the power outage. This interface includes the measurement data transmitted by the laser ranging module 20 before the power outage and related display content, ensuring that the user can still view the corresponding measurement information and avoiding data loss. The rangefinder provided in this embodiment, through the real-time display function of the first display unit 31 and the power-off display retention function of the second display unit 32, effectively solves the problems of cumbersome data recording and easy data loss during power outages in traditional rangefinders, improving ease of use. It is understandable that the second display unit 32 also has the function of the first display unit 31. That is, when the rangefinder is powered on and working normally, the laser rangefinder module 20 can also transmit the measured distance data to the second display unit 32 in real time and display it on the second display unit 32.

[0023] Furthermore, the second display unit 32 is an electronic paper ink screen or a cholesteric liquid crystal display screen 30.

[0024] Specifically, if the second display unit 32 uses an electronic paper ink screen, its working principle is based on electrophoretic display technology, which can maintain the current display screen without continuous power supply. When the rangefinder is powered on, the measurement data transmitted by the laser ranging module 20 can be synchronously updated to the electronic paper ink screen to form an interface containing the measurement data; after power failure, the position of the microcapsule particles in the electronic paper ink screen remains stable and will not change due to power failure, thus continuously retaining the measurement interface before power failure, and this process does not consume power, and can maintain the display effect for a long time.

[0025] If the second display unit 32 uses a cholesteric liquid crystal display, it achieves power-off display retention based on the bistable characteristics of cholesteric liquid crystals. In the power-on state, the arrangement of liquid crystal molecules is controlled by an electric field to display measurement data and interface content; after power failure, the liquid crystal molecules can maintain their original arrangement without an electric field, ensuring a stable display of the measurement interface before power failure. This type of display also has a fast response speed, enabling timely and synchronized updates of measurement data, while possessing good visual readability, adapting to the usage requirements of rangefinders in different lighting environments.

[0026] Furthermore, the first display unit 31 and the second display unit 32 are two independent screens, respectively mounted at different mounting positions of the rangefinder body 10.

[0027] Specifically, in this embodiment, the first display unit 31 and the second display unit 32 are each independent complete screen structures. Both are electrically connected to the laser ranging module 20 through built-in circuits and can synchronously receive measurement data transmitted by the laser ranging module 20, but their functional divisions and assembly positions differ. The first display unit 31 is mounted on the front of the rangefinder body 10. This position conforms to the user's normal line of sight when using the rangefinder, ensuring that the user can quickly view the real-time updated measurement data through the first display unit 31 when triggering the laser ranging module 20 to perform measurements. The second display unit 32 is mounted on the side of the rangefinder body 10 adjacent to the front. This assembly position avoids spatial interference with the first display unit 31 and allows the user to easily access data retained after power failure by flipping the rangefinder.

[0028] Furthermore, the first display unit 31 and the second display unit 32 are respectively mounted on two adjacent surfaces of the rangefinder body 10, and the setting plane perpendicular to the ranging direction intersects with the first display unit 31 and the second display unit 32 respectively.

[0029] Specifically, the ranging direction is the direction in which the laser ranging module 20 emits a laser to measure the distance to the target. The set plane is a plane perpendicular to this ranging direction and is the core spatial reference plane on the rangefinder body 10 associated with the ranging function. In this embodiment, the first display unit 31 and the second display unit 32 are mounted on two adjacent surfaces of the rangefinder body 10, and both display units have an intersecting area with the set plane, that is, the first display unit 31 and the second display unit 32 are allowed to be staggered in the ranging direction, such as... Figure 1 As shown, the misalignment distance should not be too large, so as to avoid affecting the observation of the second display unit 32 when holding the rangefinder due to the excessive misalignment distance. At the same time, it is also to avoid increasing the overall size of the rangefinder due to the excessive misalignment distance.

[0030] Furthermore, the rangefinder also includes a function button 12, which is located on the side of the setting plane away from the laser emission position of the rangefinder.

[0031] Specifically, the laser emission point is the port of the laser ranging module 20 that emits the laser, located at the top of the rangefinder body 10. The bottom of the rangefinder body 10 serves as the grip area. The function button 12, which controls the core operation of the rangefinder, is mounted on the front of the grip area, specifically on the side of the first display unit 31 furthest from the laser emission point, adapting to the user's grip habits. When the user holds the rangefinder body 10 with one hand, their fingers can naturally extend to the function button 12, allowing for easy pressing of the function button 12 without adjusting the grip posture, enabling operations such as rangefinder on / off, function switching, and data confirmation, thus improving ease of use.

[0032] Function button 12 establishes an electrical connection with laser ranging module 20 and first display unit 31 through built-in circuitry. Pressing the button sends an operation command to laser ranging module 20 and simultaneously triggers first display unit 31 to update the corresponding measurement data in real time, ensuring synchronization between operation feedback and data display. Furthermore, this assembly design does not affect the real-time display function of first display unit 31 or the power-off display retention function of second display unit 32.

[0033] Furthermore, the rangefinder body 10 is also equipped with an electronic sensor, which is used to acquire tilt angle data to measure levelness.

[0034] Specifically, the electronic sensor can be a dual-axis tilt sensor or a triaxial accelerometer sensor, whose size is adapted to the internal space of the rangefinder body 10. It is assembled into a preset mounting position inside the rangefinder body 10 by screw fixing or slot embedding, and this mounting position ensures that the sensor detection direction is relatively fixed with the rangefinder's distance measurement direction and the body's reference plane to ensure the accuracy of tilt angle measurement. The electronic sensor is electrically connected to the core control module and the first display unit 31 and the second display unit 32 through built-in circuitry, without directly interfering with the distance measurement function of the laser ranging module 20 and the display function of the display screen 30.

[0035] In practical use, when a user needs to measure the levelness, the electronic sensor can detect the tilt angle of the rangefinder body 10 relative to the horizontal plane in real time, convert the tilt angle into tilt angle data in the form of an electrical signal, and transmit it separately to the first display unit 31 for display or separately to the second display unit 32 for display after processing by the core control module, or it can be displayed on the first display unit 31 and the second display unit simultaneously.

[0036] Regarding the assembly positions of the first display unit 31 and the second display unit 32 in this embodiment, the side of the rangefinder body 10 facing the opposite direction to the assembly surface of the second display unit 32 is used as the reference surface. When the user needs to measure the levelness of the surface to be measured, the reference surface is placed on the surface to be measured. If the surface to be measured is placed horizontally, the flatness of the surface to be measured is observed through the first display unit 31; if the surface to be measured is placed vertically, the flatness of the surface to be measured is observed through the second display unit 32.

[0037] Furthermore, along the laser emission direction of the laser ranging module 20, light indicator modules 13 are spaced apart on the rangefinder body 10. The light indicator modules 13 are used to indicate the deflection direction of the rangefinder when measuring the levelness.

[0038] Specifically, in this embodiment, there are two light indicator modules 13, which are respectively placed at both ends of the front of the rangefinder body 10. The light indicator module 13 can be made of LED beads. Each LED bead is electrically connected to the electronic sensor and the core control module through a built-in circuit and can receive the trigger signal transmitted by the core control module.

[0039] When a user measures the levelness using an electronic sensor, if the sensor detects a tilt in the rangefinder body 10, the core control module sends a lighting command to the corresponding light indicator module 13 based on the tilt direction. For example, when the rangefinder tilts to the left, the LED on the left side along the laser emission direction lights up; when the rangefinder tilts to the right, the LED on the right side along the laser emission direction lights up. By observing the lighting status of the light indicator module 13, the user can intuitively determine the deflection direction of the rangefinder and quickly adjust the body's posture to a level state without needing to observe the tilt angle data from the first display unit 31, thus improving the efficiency of leveling operations.

[0040] Furthermore, a sliding groove is provided on the side of the rangefinder body 10, and a charging cover 40 is slidably installed in the sliding groove. A charging port is provided at the bottom of the charging cover 40. When not charging, the charging cover 40 covers the charging port. When charging is required, the charging cover 40 is slid to expose the charging port, thereby allowing the rangefinder to be charged. In this embodiment, after charging, the charging cover 40 is located on the side of the rangefinder body 10 facing the opposite direction to the mounting surface of the second display unit 32, such as... Figure 4 As shown.

[0041] Example 2 refer to Figure 5 and Figure 6 Based on the above embodiment 1, this embodiment provides another rangefinder. The contents that are the same as those in embodiment 1 will not be repeated. The difference is that in this embodiment, the first display unit 31 and the second display unit 32 are aligned on two adjacent surfaces of the rangefinder body 10, so as to minimize the encroachment of the second display unit 32 on the space of the rangefinder grip.

[0042] Furthermore, the rangefinder also includes a magnetic suction element 11, which is located on the side of the rangefinder body 10 opposite to where the second display unit 32 is located.

[0043] Specifically, a magnetic chuck 11 is provided on the side of the rangefinder body 10 facing the opposite direction to the mounting surface of the second display unit 32. The magnetic chuck 11 can be a neodymium iron boron permanent magnet or other components with stable magnetism. It can be assembled to the preset mounting position on the corresponding side of the rangefinder body 10 by means of adhesive bonding or slot fixing, so as not to affect the overall grip of the rangefinder. When there is a metal carrier (such as building steel structure, metal pipe, metal support, etc.) in the ranging scenario, the magnetic chuck 11 can be attracted to the surface of the metal carrier, so that the rangefinder body 10 is stably positioned relative to the carrier, without the need for the operator to hold it for fixation. It is especially suitable for scenarios such as high-altitude ranging and two-handed operation recording. In addition, it can also be combined with the electronic sensor mentioned in the above embodiment to realize the leveling operation of the metal carrier, such as leveling of steel structure, ceiling joists, etc. In this embodiment, there are two magnetic chucks 11, which are respectively located at both ends of the corresponding side of the rangefinder body 10, such as Figure 6 As shown. To avoid affecting the charging of the rangefinder, the charging port can be located at the bottom of the rangefinder body 10.

[0044] Furthermore, the magnetic attachment 11 can also be provided on the rangefinder described in Embodiment 1, requiring only adjustment of the position of the charging port.

[0045] Example 3 Based on Embodiment 2 above, this embodiment provides another rangefinder. The contents that are the same as in Embodiment 1 will not be repeated here; the differences are as follows: The rangefinder also includes a groove, which is located on the side of the rangefinder body 10 opposite to the side where the second display unit 32 is located. The groove is used to fit the outer wall of the tubular part to be measured.

[0046] Specifically, in this embodiment, a groove is provided on the side of the rangefinder body 10 facing the opposite direction to the mounting surface of the second display unit 32. The groove structure is not shown in the attached drawings. The structure of the groove is adapted to the outer wall curvature of common tubular parts to be measured. The radius of the arc surface inside the groove matches the outer wall radius of most standard tubular parts. When it is necessary to measure the length of the tubular part, or to measure other distances with the tubular part as a reference, the outer wall of the tubular part can be fitted into the groove. In addition, the electronic sensor mentioned in the above embodiment can be used to achieve the leveling operation of the tubular structure. It should be noted that the side of the rangefinder body 10 opposite to the mounting surface of the second display unit 32 can be provided with both the groove and the magnetic suction member 11, or only the groove.

[0047] Example 4 refer to Figure 7 and Figure 8 Based on Embodiment 1 above, this embodiment provides another rangefinder. The contents that are the same as in Embodiment 1 will not be repeated here; the differences are as follows: The first display unit 31 and the second display unit 32 are integrated on the same screen, and their respective functions are realized through screen partitioning.

[0048] Specifically, in this embodiment, the display screen 30 is a single, integrated screen structure. Through a partitioned design, a first display area (i.e., the first display unit 31) and a second display area (i.e., the second display unit 32) are defined on the integrated screen, which are independent of each other. Both display areas are electrically connected to the laser ranging module 20 through built-in circuits, and can synchronously receive measurement data transmitted by the laser ranging module 20, but their functions are clearly defined and do not interfere with each other. Among them, the first display unit 31 occupies the main visible area of ​​the integrated screen, adapts to the user's real-time observation habits, and can dynamically refresh and display the measurement data output by the laser ranging module 20 in real time when the rangefinder is powered on, ensuring that the user can quickly obtain real-time measurement results during operation; the second display unit 32 is an independent partition on the integrated screen, and its function follows the limitations of Embodiment 1. When powered on, it updates the measurement interface synchronously with the first display unit 31, and after power failure, it stably retains the measurement interface content before power failure. Users can directly view the retained data through the fixed partition on the integrated screen without switching screens.

[0049] In this embodiment, both the first display unit 31 and the second display unit 32 are located on the front of the rangefinder body 10. For ease of use, the rangefinder body 10 may not have function buttons 12; instead, the display screen 30 can be set as a touch screen, allowing function switching via touch. Specifically, both the first display unit 31 and the second display unit 32 can be set as touch areas, or only the first display unit 31 can be set as a touch area.

[0050] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A rangefinder, characterized in that, The device includes a rangefinder body (10), a laser ranging module (20), and a display screen (30). The laser ranging module (20) is mounted on the rangefinder body (10) and is used to measure the distance to the target location. The display screen (30) is electrically connected to the laser ranging module (20) and is used to display the measurement data of the laser ranging module (20). The display screen (30) includes a first display unit (31) and a second display unit (32). The first display unit (31) and the second display unit (32) are independent functional units. The first display unit (31) is used to display the measurement data in real time, and the second display unit (32) can maintain the display of the interface before the power failure when the rangefinder is powered off.

2. The rangefinder according to claim 1, characterized in that, The second display unit (32) is an electronic paper ink screen or a cholesterol liquid crystal display screen.

3. The rangefinder according to claim 1, characterized in that, The first display unit (31) and the second display unit (32) are two independent screens, which are respectively mounted at different mounting positions on the rangefinder body (10).

4. The rangefinder according to claim 1, characterized in that, The first display unit (31) and the second display unit (32) are integrated on the same screen, and their respective functions are realized through screen partitioning.

5. The rangefinder according to claim 3, characterized in that, The first display unit (31) and the second display unit (32) are respectively mounted on two adjacent surfaces of the rangefinder body (10), and the setting plane perpendicular to the ranging direction intersects with the first display unit (31) and the second display unit (32) respectively.

6. The rangefinder according to claim 5, characterized in that, The rangefinder also includes a groove, which is located on the side of the rangefinder body (10) opposite to the second display unit (32) and is used to fit the outer wall of the tubular part to be measured.

7. The rangefinder according to claim 5, characterized in that, The rangefinder also includes a magnetic chuck (11), which is located on the side of the rangefinder body (10) opposite to the side where the second display unit (32) is located.

8. The rangefinder according to claim 5, characterized in that, The rangefinder also includes a function button (12), which is located on the side of the setting plane away from the laser emission position of the rangefinder.

9. The rangefinder according to any one of claims 1-8, characterized in that, The rangefinder body (10) is also equipped with an electronic sensor, which is used to acquire tilt data to measure levelness.

10. The rangefinder according to claim 9, characterized in that, Along the laser emission direction of the laser ranging module (20), light indicator modules (13) are provided at intervals on the rangefinder body (10). The light indicator modules (13) are used to indicate the deflection direction of the rangefinder when measuring the levelness.

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