A test system for automatic leveling and north-seeking device

Abstract

This invention discloses a testing system for an automatic leveling and north-finding device, comprising a test chamber containing a device simulation installation platform consisting of a revolution tilt direction adjustment module and a rotation azimuth adjustment module, an environmental simulation area consisting of a temperature adjustment module and a rain simulation module, and a horizontal monitoring module for monitoring the leveling accuracy. The rotation azimuth adjustment module consists of a rotation azimuth adjustment unit that drives the device to rotate and a dynamic mounting plate that rotates outward on top of the rotation azimuth adjustment unit via a universal connector to provide installation space for the device. The device rotates as the dynamic mounting plate rotates, with a high-level contact unit lifting the dynamic mounting plate upward and a low-level contact unit supporting the bottom of the dynamic mounting plate. Due to the difference in rotational speed between the tilt azimuth adjustment unit and the rotation azimuth adjustment unit, the horizontal rotation angle and tilt angle of the device can form various combinations, thus diversifying the measured variables.

Description

Technical Field

[0001] This invention relates to the field of precision instrument testing technology, specifically a testing system for an automatic leveling and north-finding device. Background Technology

[0002] The automatic leveling and north-finding device mainly performs two functions: leveling and north-finding. Its heading angle sensor is mainly used for measuring rotation angle, and its tilt angle sensor is mainly used to display the device's horizontal state, pitch angle, and roll angle for motor leveling. A Chinese patent (CN106940195B) discloses a method for correcting the misalignment error of the input shaft of a dual-axis tilt sensor. This patent uses a three-dimensional turntable to any angle within the range of the dual-axis tilt sensor to simulate the measurement accuracy of the dual-axis tilt sensor in a tilted state. However, this method is not entirely applicable to the automatic leveling and north-finding device because there are various errors in the leveling and north-finding methods, including monitoring errors of the dual-axis tilt sensor, mechanical errors when the data transmission actuators perform their actions, and installation errors of the equipment components, which leads to an increased error range. Therefore, this method is not comprehensive in its testing. Summary of the Invention

[0003] The purpose of this invention is to provide a testing system for an automatic leveling and north-finding device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a testing system for an automatic leveling and north-finding device, comprising a testing chamber, wherein the testing chamber is equipped with a device simulation installation platform consisting of a revolution tilt direction adjustment module and a rotation azimuth adjustment module, an environmental simulation area consisting of a temperature adjustment module and a rain simulation module, and a level monitoring module for monitoring the leveling accuracy. The rotation azimuth adjustment module consists of a rotation azimuth adjustment unit that drives the device to rotate and a dynamic mounting plate that rotates outward on top of the rotation azimuth adjustment unit via a universal connector to provide installation space for the device. The revolution tilt direction adjustment module consists of a tilt azimuth adjustment unit that rotates below the dynamic mounting plate and a tilt amplitude control unit fixed at the bottom of the testing chamber outside the tilt azimuth adjustment unit. Two contact units of unequal height that contact the dynamic mounting plate are slidably connected to the dynamic mounting plate.

[0005] As a further embodiment of the present invention: the horizontal monitoring module consists of several contact units arranged in a ring on the inner wall of the test chamber. The contact units are vertically slidably connected to the test chamber. An extension plate that cooperates with the contact units is fixedly extended from the top of the leveling platform. Sensors are installed on the side of the test chamber. A communicating vessel that contacts and cooperates with the contact units is installed on the top surface of the groove in the inner wall of the test chamber. The communicating vessel is signal-connected to the sensor.

[0006] As a further embodiment of the present invention: the top of the contact unit is rotatably connected to a ball bearing, the tilt amplitude execution unit is in contact with the bottom surface of the dynamic mounting plate, the bottom surface of the dynamic mounting plate is covered with a Teflon film, and the sliding friction between the contact unit and the dynamic mounting plate is less than the rotational damping of the universal connector.

[0007] As a further embodiment of the present invention: the tilt amplitude control unit is concentric with the tilt orientation adjustment unit, and two control actuators are fixedly connected to the inner wall of the tilt amplitude control unit. The side of the abutment unit is provided with a tilt amplitude execution unit that cooperates with the control actuators to drive the abutment unit to move up and down.

[0008] As a further aspect of the present invention, the rotation direction of the rotational orientation adjustment unit is opposite to the rotation direction of the tilting orientation adjustment unit.

[0009] As a further embodiment of the present invention: the temperature regulation module surrounds the inner wall side of the test chamber.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The device rotates as the dynamic mounting plate rotates, changing its orientation. This causes the upper structure to rotate to find north via the north-finding function. Meanwhile, the tilt orientation adjustment unit rotates counter-clockwise. Due to the different heights of the two contact units, the higher contact unit pushes the dynamic mounting plate upwards, while the lower contact unit supports the bottom of the dynamic mounting plate. The universal connector tilts, and the tilt sensor detects this tilt data, leveling the detection end of the device. If the detection end is not leveled, the extension plate is tilted, and the bottom of the contact unit below the extension plate separates from the communicating vessel, which is captured by the sensor. The time from sensor capture to the subsequent contact unit re-contacting the communicating vessel is used as the test standard for reaction speed. Because the tilt orientation adjustment unit and the rotation orientation adjustment unit... The device has a rotational speed difference, and at this time, the horizontal rotation angle and tilt angle of the device form a variety of different combinations, thus diversifying the measured variables. After a certain degree of rotation, the tilt amplitude execution unit on the side of the contact unit cooperates with the control transmission on the inner wall of the tilt amplitude control unit. The lower contact unit descends equidistantly after each pass of the tilt amplitude control unit, and the higher contact unit rises equidistantly after each pass of the tilt amplitude control unit. This causes the tilt angle of the dynamic mounting plate to increase after each degree of rotation, while the horizontal rotation continues, further increasing the test variables, until after N rotations, the tilt angle of the dynamic mounting plate reaches the maximum value of the measurement range. This allows for multiple tests of the device's leveling and north-finding functions by combining various horizontal rotation angles and tilt angles. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the composition of a test system for an automatic leveling and north-finding device.

[0014] Figure 2 This is a schematic diagram of a test system for an automatic leveling and north-finding device.

[0015] Figure 3 This is a top view cross-sectional diagram of a test system for an automatic leveling and north-finding device.

[0016] In the diagram: 100, Revolution tilt direction adjustment module; 200, Rotation orientation adjustment module; 300, Temperature adjustment module; 400, Rainwater simulation module; 500, Horizontal monitoring module; 1, Test chamber; 2, Extension disc; 3, Contact unit; 31, Sensor; 32, Communicating device; 4, Dynamic mounting disc; 5, Rotation orientation adjustment unit; 51, Universal connector; 6, Tilt orientation adjustment unit; 7, Contact unit; 71, Tilt amplitude execution unit; 8, Tilt amplitude control unit; 81, Control actuator. Detailed Implementation

[0017] Please see Figure 1 , Figure 2 , Figure 3 The invention comprises: a rotation orientation adjustment module 200, consisting of a rotation orientation adjustment unit 5 and a dynamic mounting plate 4. The rotation orientation adjustment unit 5 consists of a servo motor and a turntable. A universal connector 51 is installed on the turntable of the rotation orientation adjustment unit 5 to connect to the dynamic mounting plate 4. The dynamic mounting plate 4 provides a mounting fulcrum for the leveling and north-finding equipment. At this time, the equipment is fixed on the top of the dynamic mounting plate 4. Since the rotation orientation adjustment unit 5 can drive the dynamic mounting plate 4 to rotate through the universal connector 51, the rotation angle of the equipment changes, thus improving the north-finding accuracy of the testing device.

[0018] The orbital tilt direction adjustment module 100 consists of a rotational orientation adjustment unit 5, a contact unit 7, and a tilt amplitude control unit 8. The tilt orientation adjustment unit 6, the tilt amplitude control unit 8, and the turntable of the rotational orientation adjustment unit 5 all rotate concentrically. At this time, the tilt orientation adjustment unit 6 surrounds the turntable of the rotational orientation adjustment unit 5. The tilt amplitude control unit 8 is located outside the tilt orientation adjustment unit 6 and is fixedly connected to the test chamber 1. Since the rotational orientation adjustment module 200 can drive the device to rotate for north-finding testing, the tilt orientation adjustment unit 6 rotates via a servo motor and gear transmission mechanism. Because the contact unit 7 is located at the top of the tilt orientation adjustment unit 6, and the distance between the two contact units 7 is equal to the diameter of the tilt orientation adjustment unit 6, the two contact units 7, due to their different heights, cause the dynamic mounting plate 4 to tilt through contact. The tilted dynamic mounting plate 4 then provides a tilt direction for the device. At this time, the rotation direction of the rotational orientation adjustment unit 5 is opposite to the rotation direction of the tilt orientation adjustment unit 6. The position adjustment unit 5 and the tilt orientation adjustment unit 6 have a speed difference. In this way, the tilt and rotation angle of the entire device are dynamically changed during rotation. When the device rotates 180 degrees, the tilt amplitude execution unit 71 on the side of the contact unit 7 cooperates with the control transmission device 81 on the inner wall of the tilt amplitude control unit 8. The tilt amplitude execution unit 71 uses a gear. The bottom of the contact unit 7 is connected by a threaded sleeve and a threaded rod. The threaded rod is fixed at the bottom of the contact unit 7. The threaded sleeve is fixedly connected to the tilt amplitude execution unit 71. The control transmission device 81 uses an arc-shaped rack. At this time, the tilt amplitude execution unit 71 rotates due to its revolution and cooperation with the control transmission device 81, which drives the threaded sleeve to rotate. The threaded rod is restricted by the limiting sliding structure, so that the contact unit 7 slides up and down on the tilt orientation adjustment unit 6 and rotates in the same direction. The lower contact unit 7 descends equidistantly each time it passes the tilt amplitude control unit 8, and the higher contact unit 7 rises equidistantly each time it passes the tilt amplitude control unit 8. This monitoring process ends when the tilt angle of the dynamic mounting plate 4 is the same as the maximum value of the monitoring range of the device.

[0019] The temperature regulation module 300 is mainly used to change the internal temperature of the test chamber 1 by electric heating or combined with wind power, so as to determine the effect of temperature on the zero point and sensitivity of the sensor.

[0020] The Rainwater Simulation Module 400 is mainly used to simulate outdoor rainwater environments to determine the effects of humidity and rainwater on the device's leveling and north-finding functions.

[0021] The horizontal monitoring module 500 consists of several contact units 3 arranged in a ring inside the test chamber 1. The contact units 3 are located in the inner wall groove of the test chamber 1 through an elastic support structure. The top of the contact unit 3 is provided with contact points that cooperate with the communicating vessel 32. The leveling end of the device is fixed with an extension plate 2. The extension plate 2 mainly extends the leveling end outward. At this time, the extension plate 2 is located above the contact unit 3. If the extension plate 2 is in the leveling state, several contact units 3 are in contact with the communicating vessel 32. At this time, the sensor 31 cannot sense it. As the device rotates, the dynamic mounting plate 4 tilts. The leveling response speed of the device can be judged by the time from the separation of the contact unit 3 to the re-contact by the sensor 31. At the same time, the leveling result of the extension plate 2 can also provide detection data through the contact unit 3.

[0022] Please see Figure 1 , Figure 2 , Figure 3 Test process of this invention

[0023] The device is placed inside the test chamber 1, with its bottom fixedly connected to the dynamic mounting plate 4. First, the orientation adjustment unit 5 rotates the universal connector 51 and the dynamic mounting plate 4 counterclockwise. The device rotates along with the dynamic mounting plate 4, changing its orientation. The north-finding function then rotates the upper structure to find north. Meanwhile, the tilt orientation adjustment unit 6 rotates counterclockwise. Due to the different heights of the two contact units 7, the higher contact unit 7 lifts the dynamic mounting plate 4 upwards, while the lower contact unit 7 supports the bottom of the dynamic mounting plate 4. The universal connector 51 tilts, and the tilt sensor detects this tilt. After data collection, the detection end of the device is leveled. When the detection end is not leveled, the extension plate 2 is tilted. The bottom of the contact unit 3 located below the extension plate 2 separates from the communicating vessel 32 and is captured by the sensor 31. The time from when the sensor 31 captures the contact unit 3 to when it re-contacts the communicating vessel 32 is used as the test standard for reaction speed. Because the tilt adjustment unit 6 and the rotation adjustment unit 5 have a difference in rotational speed, the horizontal rotation angle and tilt angle of the device form various combinations, thus diversifying the measured variables. This continues until the device rotates 180 degrees, at which point the tilt amplitude of the contact unit 7 is activated by the device 7. 1. The tilt amplitude execution unit 71 is geared and works in conjunction with the control transmission 81 on the inner wall of the tilt amplitude control unit 8. The bottom of the contact unit 7 is connected by a threaded sleeve and a threaded rod. The threaded rod is fixed at the bottom of the contact unit 7. The threaded sleeve is fixedly connected to the tilt amplitude execution unit 71. The control transmission 81 is an arc-shaped rack. At this time, the tilt amplitude execution unit 71 rotates due to its revolution and the control transmission 81, which drives the threaded sleeve to rotate. The threaded rod is restricted by the limiting sliding structure, so that the contact unit 7 slides up and down on the tilt orientation adjustment unit 6 and rotates in the same direction. Each time the lower contact unit 7 passes the tilt amplitude control unit 6, it rotates. Unit 8 descends at equal intervals, while the higher-level contact unit 7 rises at equal intervals each time it passes the tilt amplitude control unit 8. This causes the tilt angle of the dynamic mounting plate 4 to increase after each 180-degree rotation, while the horizontal rotation continues, further increasing the test variables. This continues until, after N rotations, the tilt angle of the dynamic mounting plate 4 reaches the maximum value of the measurement range. This allows for multiple measurements of the device's leveling and north-finding functions by combining various horizontal rotation angles and tilt angles. Simultaneously, the temperature adjustment module 300 and the rain simulation module 400 are used to demonstrate the influence of rainwater and temperature on equipment errors. Combined with multivariate testing, the test results become more accurate.

[0024] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A testing system for an automatic leveling and north-finding device, comprising a testing chamber (1), characterized in that: The test chamber (1) is equipped with a device simulation installation platform consisting of a revolution tilt direction adjustment module (100) and a rotation orientation adjustment module (200), an environmental simulation area consisting of a temperature adjustment module (300) and a rainwater simulation module (400), and a level monitoring module (500) for monitoring the leveling accuracy. The self-rotation orientation adjustment module (200) consists of a rotation orientation adjustment unit (5) and a dynamic mounting plate (4). A universal connector (51) is installed on the turntable of the rotation orientation adjustment unit (5) to connect to the dynamic mounting plate (4). The dynamic mounting plate (4) provides an installation fulcrum for the leveling and north-finding equipment. The orbital tilt direction adjustment module (100) consists of a tilt orientation adjustment unit (6) that rotates below the dynamic mounting plate (4) and a tilt amplitude control unit (8) that is fixed at the bottom of the test chamber (1) and located outside the tilt orientation adjustment unit (6). Two contacting units (7) with different heights are slidably connected to the dynamic mounting plate (4). The tilt amplitude control unit (8) is concentric with the tilt orientation adjustment unit (6). Two control actuators (81) are fixedly connected to the inner wall of the tilt amplitude control unit (8). The side of the contact unit (7) is provided with a tilt amplitude execution unit (71) that works with the control actuators (81) to drive the contact unit (7) to move up and down.

2. The testing system for an automatic leveling and north-finding device according to claim 1, characterized in that: The horizontal monitoring module (500) consists of several contact units (3) arranged in a ring on the inner wall of the test chamber (1). The contact units (3) are vertically slidably connected to the test chamber (1). An extension plate (2) that cooperates with the contact unit (3) is fixedly extended from the top of the leveling platform. A sensor (31) is installed on the side of the test chamber (1). A communicating vessel (32) that contacts and cooperates with the contact unit (3) is installed on the top surface of the groove in the inner wall of the test chamber (1). The communicating vessel (32) is signal connected to the sensor (31).

3. The testing system for an automatic leveling and north-finding device according to claim 1, characterized in that: The top of the contact unit (7) is rotatably connected to a ball bearing. The tilt amplitude execution unit (71) is in contact with the bottom surface of the dynamic mounting plate (4). The bottom surface of the dynamic mounting plate (4) is covered with a Teflon film. The sliding friction between the contact unit (7) and the dynamic mounting plate (4) is less than the rotational damping of the universal connector (51).

4. A testing system for an automatic leveling and north-finding device according to claim 1, characterized in that: The rotation direction of the rotational orientation adjustment unit (5) is opposite to the rotation direction of the tilt orientation adjustment unit (6).

5. A testing system for an automatic leveling and north-finding device according to claim 1, characterized in that: The temperature control module (300) surrounds the inner wall side of the test chamber (1).

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