CN219589625U - Vertical distance measuring device for obstacle avoidance measurement - Google Patents
Vertical distance measuring device for obstacle avoidance measurement Download PDFInfo
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- CN219589625U CN219589625U CN202321970568.7U CN202321970568U CN219589625U CN 219589625 U CN219589625 U CN 219589625U CN 202321970568 U CN202321970568 U CN 202321970568U CN 219589625 U CN219589625 U CN 219589625U
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Abstract
The utility model provides a vertical distance measuring device for obstacle avoidance measurement, which comprises a base, an angle measuring sensor and a linear distance measuring device, wherein the base is in flat plate arrangement, a stator of the angle measuring sensor is fixedly connected with the base, the linear distance measuring device comprises a measuring shell, a display screen, a main control circuit board and an infrared laser distance measuring sensor, a first end and a second end are respectively arranged at two ends of the measuring shell in the linear direction, a rotor of the angle measuring sensor is fixedly connected with the first end, the infrared laser distance measuring sensor is arranged at the second end and is connected with the main control circuit board, the infrared laser distance measuring sensor is outwards arranged in the linear direction, the display screen is arranged on the outer surface of the measuring shell and is connected with the main control circuit board, and the main control circuit board is arranged in the measuring shell. The measuring scheme of the vertical distance measuring device solves the problem that an obstacle exists below the center vertical line of the target measured object, and can conveniently measure the relative position of the target measured object from the ground or the wall.
Description
Technical Field
The utility model relates to the field of Bluetooth positioning and installation, in particular to a vertical distance measuring device for obstacle avoidance measurement.
Background
The popularization and application of the outdoor navigation bring convenience to travel, the original map-viewing mode is changed, and the user can walk to reach the destination according to the planned route provided by the system only by simple searching operation, however, the outdoor map and navigation technology mainly depends on the development of satellites, and the satellites are limited by the communication mode and cannot reach the indoor area. Because the large-scale buildings in all places can be designed and laid out according to the wishes of the investors, and in addition, special geographic positions, more diversified indoor design schemes exist, so that the complexity of indoor roads is higher, and the occupied area of the large-scale buildings is large, so that indoor navigation is particularly important.
In addition, along with the release of the Bluetooth 5.1 standard by the Bluetooth technology alliance, bluetooth 5.1 is added with a centimeter-level positioning service of a direction finding function, namely Angle of Arrival (AoA), namely Angle of Arrival positioning, so far, the Bluetooth AoA positioning technology can realize high-precision centimeter-level positioning through Bluetooth, and the positioning precision can reach the positioning precision of 10cm to 30cm at the earliest. The angle of arrival positioning (AOA) is to use a single antenna to transmit a direction-finding signal, and the device at the receiving end is built with an antenna array, so that when the signal passes through, phase differences are generated due to different distances received in the array, and then the relative signal direction is calculated.
For this reason, in addition to the importance of drawing an indoor three-dimensional map, it is particularly critical to indoor positioning installation of the bluetooth positioning terminal, and it is required to determine an explicit position of the bluetooth positioning terminal in the indoor, for example, a vertical height of a horizontal floor of the bluetooth positioning terminal and a vertical distance of a vertical wall.
The product of the prior art mainly can measure the distance between points, referring to fig. 1, when the prior art measures the distance from a certain point on the ceiling to the wall surface, the center vertical line needs to be manually drawn down, then the laser range finder is used for measuring the distance of the center vertical line, and then the horizontal distance from the target measured object to the wall body is measured.
Referring to fig. 2, there is another scheme that a central vertical line from a target measured object directly measures a wall surface, and in actual operation, it is difficult to determine that the light emitted by the laser range finder is the vertical line, so that a large error exists in the measurement result.
Referring to fig. 3, there may be an obstacle, such as a suspended ceiling, between the vertical distances of the target measurement object to the wall surface, and there may be an irregular obstacle, such as green plants, on the vertical lines of the target measurement object to the ground, and various adverse factors may cause the inability to perform right-angle accurate measurement. Based on the above-mentioned measurement difficulties, a set of schemes for conveniently measuring the vertical distance is required to be designed.
Disclosure of Invention
The utility model aims to provide a vertical distance measuring device for obstacle avoidance measurement, which is convenient to use and can accurately measure.
In order to achieve the purpose of the utility model, the utility model provides a vertical distance measuring device for obstacle avoidance measurement, which comprises a base and an angle measuring sensor, wherein the base is arranged in a flat plate manner, and the angle measuring sensor comprises a rotor and a stator; the vertical distance measuring device further comprises a linear distance measuring device, the linear distance measuring device comprises a measuring shell, a display screen, a main control circuit board and an infrared laser distance measuring sensor, the first end and the second end are respectively arranged at two ends of the measuring shell in the linear direction, the rotor is fixedly connected with the first end, the stator is fixedly connected with the base, the infrared laser distance measuring sensor is arranged at the second end and is connected with the main control circuit board, the infrared laser distance measuring sensor is arranged outwards in the linear direction, the axes of the infrared laser distance measuring sensor and the rotor are arranged in a collinear way in the linear direction, the display screen is arranged on the outer surface of the measuring shell and is connected with the main control circuit board, and the main control circuit board is arranged in the measuring shell.
In a further embodiment, the measuring housing is arranged in a cuboid extending in a straight direction.
Still further, the external surface of the measurement shell is also provided with a key module, and the key module is connected with the main control circuit board.
In a further scheme, the base is respectively provided with an outer plane and an inner plane at two opposite sides, a stator of the angle measurement sensor is fixedly connected with the outer plane, and the inner plane is used for connecting a vertical fixture.
The utility model has the advantages that the inner plane of the base can be fixedly connected to a vertical fixed object such as a wall, the rotatable infrared laser ranging sensor is utilized to aim at a target measured object, then the oblique line distance and the rotation included angle can be obtained, the horizontal vertical distance between the target measured object and the vertical wall can be conveniently calculated through Pythagorean theorem calculation, if the vertical distance measuring device is placed on the horizontal ground, the vertical distance between the horizontal ground can be conveniently measured and calculated, the measuring result can be displayed on a display screen, the measuring scheme of the vertical distance measuring device avoids the problem that an obstacle exists below the target measured object, and the relative position between the target measured object and the ground or the wall can be conveniently measured.
Drawings
Fig. 1 is a first measurement scheme of a target measurement object in the prior art.
Fig. 2 is a second measurement scheme of a target measurement object in the prior art.
Fig. 3 is a schematic diagram of a prior art obstacle to measurement of a target measurement object.
Fig. 4 is a block diagram of an embodiment of the vertical distance measuring device of the present utility model.
Fig. 5 is a measurement schematic diagram of an embodiment of the vertical distance measuring device of the present utility model.
The utility model is further described below with reference to the drawings and examples.
Detailed Description
Referring to fig. 4 and 5, the vertical distance measuring device includes a base 11, an angle measuring sensor 12 and a linear distance measuring device 2, the base 11 is in a flat plate arrangement, the base 11 is respectively provided with an outer plane and an inner plane at opposite sides, the inner plane of the base 11 is used for connecting a vertical fixture, such as for fixing on a vertical wall, the angle measuring sensor 12 includes a rotor and a stator, a rotation angle can be measured by rotation of the rotor relative to the stator, and the stator of the angle measuring sensor 12 is fixedly connected with the outer plane of the base 11.
The linear distance measuring device 2 comprises a measuring shell 21, a display screen 22, a main control circuit board and an infrared laser ranging sensor 24, wherein the measuring shell 21 is arranged in a cuboid extending along a linear direction X, a first end and a second end are respectively arranged at two ends of the linear direction X of the measuring shell 21, a rotor of the angle measuring sensor 12 is fixedly connected with the first end of the measuring shell 21, the infrared laser ranging sensor 24 is arranged on the second end and connected with the main control circuit board, the infrared laser ranging sensor 24 is arranged outwards along the linear direction X, the axes of the infrared laser ranging sensor 24 and the rotor are arranged in a collinear way along the linear direction X, the main control circuit board is arranged in the measuring shell 21, the display screen 22 is arranged on the outer surface of the measuring shell 21 and connected with the main control circuit board, a key 23 module is further arranged on the outer surface of the measuring shell 21, and the key 23 module is connected with the main control circuit board.
When the relative position of the target measurement object 10 is measured, the target measurement object 10 can be a bluetooth positioning terminal, firstly, the inner plane of the base 11 is flatly attached to a wall surface, then the linear distance measuring device 2 is rotated, the angle is adjusted until the infrared laser ranging sensor 24 is aligned to the center point of the target measurement object 10, at the moment, the angle sensor can acquire the included angle alpha between the infrared laser ranging sensor 24 and the vertical wall surface, meanwhile, the top laser emits rays, the distance L0 from the ray starting point to the measurement object is L1, the equipment length is L1, according to Pythagorean theorem, we can obtain H1= (L0+L1) x sin (alpha), and H1 is the horizontal and vertical distance between the target measurement object 10 and the wall surface, and after the length of H1 is calculated, the angle sensor is directly displayed on the display screen of the measuring instrument.
In addition, the vertical distance measuring device can be placed at the junction of the ground and the wall, the infrared laser ranging sensor 24 is aligned to the center point of the target measured object 10, then the distance L0 from the ray starting point to the measured object is set to be L1, according to the Pythagorean theorem, we can obtain H2= (L0+L1) x cos (alpha), and H2 is the vertical distance from the target measured object 10 to the ground, and then the obstacle below the target measured object 10 can be avoided, so that the obstacle avoidance measurement is convenient.
From the above, but through the internal plane fixed connection of base in vertical fixture such as wall body, the rotatable infrared laser ranging sensor of reuse aims at the target measurement thing, can acquire diagonal distance and rotation contained angle then, the rethread Pythagorean theorem calculates, can conveniently calculate the horizontal vertical distance of target measurement thing from vertical wall body, if place vertical distance measuring device on horizontal ground, can also conveniently measure the vertical distance of calculation obtain horizontal ground, the measuring result can be shown on the display screen, the measuring scheme of this case vertical distance measuring device has avoided the problem that there is the barrier in target measurement thing center perpendicular below, can conveniently measure the relative position of target measurement thing from ground or wall body.
Claims (4)
1. The vertical distance measuring device for obstacle avoidance measurement comprises a base and an angle measuring sensor, wherein the base is arranged in a flat plate manner, and the angle measuring sensor comprises a rotor and a stator;
the method is characterized in that:
the vertical distance measuring device further comprises a linear distance measuring device, the linear distance measuring device comprises a measuring shell, a display screen, a main control circuit board and an infrared laser distance measuring sensor, the two ends of the measuring shell in the linear direction are respectively provided with a first end and a second end, the rotor is fixedly connected with the first end, the stator is fixedly connected with the base, the infrared laser distance measuring sensor is arranged at the second end and is connected with the main control circuit board, the infrared laser distance measuring sensor is arranged outwards in the linear direction, the infrared laser distance measuring sensor and the axis of the rotor are arranged in a collinear way in the linear direction, and the display screen is arranged on the outer surface of the measuring shell and is connected with the main control circuit board.
2. The vertical distance measuring device according to claim 1, wherein:
the measuring housing is arranged in a cuboid extending in the straight line direction.
3. The vertical distance measuring device according to claim 1, wherein:
the outer surface of the measurement shell is also provided with a key module, and the key module is connected with the main control circuit board.
4. The vertical distance measuring device according to claim 1, wherein:
the base is provided with outer plane and interior plane respectively in opposite both sides, angle measurement sensor's stator with outer plane fixed connection, interior plane is used for connecting vertical fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321970568.7U CN219589625U (en) | 2023-07-26 | 2023-07-26 | Vertical distance measuring device for obstacle avoidance measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321970568.7U CN219589625U (en) | 2023-07-26 | 2023-07-26 | Vertical distance measuring device for obstacle avoidance measurement |
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| Publication Number | Publication Date |
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| CN219589625U true CN219589625U (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321970568.7U Active CN219589625U (en) | 2023-07-26 | 2023-07-26 | Vertical distance measuring device for obstacle avoidance measurement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347979A (en) * | 2023-10-20 | 2024-01-05 | 广州后作科技有限公司 | Laser ranging device and ranging and drawing method thereof |
| CN117347979B (en) * | 2023-10-20 | 2024-04-26 | 广州后作科技有限公司 | Laser ranging device and ranging and drawing method thereof |
-
2023
- 2023-07-26 CN CN202321970568.7U patent/CN219589625U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347979A (en) * | 2023-10-20 | 2024-01-05 | 广州后作科技有限公司 | Laser ranging device and ranging and drawing method thereof |
| CN117347979B (en) * | 2023-10-20 | 2024-04-26 | 广州后作科技有限公司 | Laser ranging device and ranging and drawing method thereof |
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