A base station signal measurement tool and a base station signal measurement method

Abstract

The application discloses a base station signal measurement tool and a base station signal measurement method. The base station signal measurement tool comprises a base, a rotating ruler, a base station positioning seat and a machine positioning seat. The base station positioning seat and the machine positioning seat are replaceable. The base is internally provided with scale marks and grooves. The rotating ruler is rotatably installed on the base. One surface of the rotating ruler is provided with scale marks and grooves. The base station positioning seat is installed on the base. The base station positioning seat is used for placing a base station to be measured and allowing the base station to be measured to externally emit a base station signal. The machine positioning seat is used for placing a machine to be measured to receive the base station signal. The machine positioning seat is slidably installed in the groove of the rotating ruler. The machine positioning seat is used for adjusting the distance between the machine to be measured and the base station to be measured along the groove of the rotating ruler. The machine positioning seat is also used for driving the machine to be measured to rotate around the base station to be measured in the case that the rotating ruler rotates along the groove of the base.

Description

Technical Field

[0001] This application relates to the field of infrared signal testing equipment technology, and in particular to a base station signal measurement fixture and a base station signal measurement method. Background Technology

[0002] Chinese invention patent application number 201911040327.9 discloses a control method for receiving a charging dock guardrail signal. To improve the efficiency of robot recharging, this method configures the robot to move in an arc along the boundary of the guardrail signal after receiving it, repeatedly entering and exiting the signal area until it leaves the effective area of ​​the signal, thus avoiding collisions with the charging dock. Therefore, the prerequisite for robot recharging is ensuring the accuracy of the signal emitted by the charging dock, including the accuracy of the emission angle and distance, to ensure the robot accurately returns to the charging dock for charging within the effective coverage area of ​​the signal. Therefore, in the research and development and production of smart home devices (such as automatic charging base stations and robotic vacuum cleaners), it is necessary to ensure the accuracy of their infrared signal emission function through testing. Traditional testing methods use equipment that can only measure a single parameter such as signal distance or angle, making it difficult to comprehensively evaluate the signal coverage. Summary of the Invention

[0003] This application discloses a base station signal measurement fixture and a base station signal measurement method, the specific technical solution of which is as follows:

[0004] A base station signal measurement fixture includes a base, a rotating ruler, a base station positioning seat, and a machine positioning seat, wherein the base station positioning seat and the machine positioning seat are replaceable; the base has scale markings and grooves inside; the rotating ruler is rotatably mounted on the base, and one surface of the rotating ruler has scale markings and grooves; the base station positioning seat is mounted on the base and is used to place the base station under test and allow the base station under test to transmit base station signals; the machine positioning seat is used to place the machine under test to receive base station signals, and the machine positioning seat is slidably mounted in the groove of the rotating ruler. The machine positioning seat is used to adjust the distance between the machine under test and the base station under test along the groove of the rotating ruler, and the machine positioning seat is also used to drive the machine under test to rotate around the base station under test when the rotating ruler rotates along the groove of the base.

[0005] In summary, this application assembles a base station signal measurement fixture using a base with a rotating ruler, a replaceable base station positioning seat, and a machine positioning seat. This forms a testing device for base station signals emitted by a base station under test (BUT) placed on the base station positioning seat to a machine under test (DUT) placed on the machine positioning seat. It can measure different transmission distances of the base station signal as the machine positioning seat moves closer to or further away from the BUT along the groove of the rotating ruler. It can also measure different transmission angles of the base station signal as the rotating ruler rotates around the BUT. This allows for testing the infrared signal transmission angle and distance range of charging base stations during the R&D and mass production stages. It also solves the problems of poor flexibility and limited functionality in existing testing equipment, achieving efficient and multifunctional base station signal testing.

[0006] Furthermore, the scale markings on the base are used to measure the transmission angle of the base station signal; the scale markings on the rotating ruler are used to measure the transmission distance of the base station signal. Therefore, the base station signal measurement fixture constitutes a dual-scale marking measurement system based on the scale markings on the base and the rotating ruler. By using the scale markings on the base and the rotating ruler to measure the angle and distance of the base station signal respectively, integrated parameter testing is achieved.

[0007] Furthermore, the base has a semi-circular edge with graduations. When the rotating ruler rotates around the base, the side of the machine positioning seat perpendicular to the rotation direction aligns with the graduations on the base, reflecting the transmission angle of the base station signal received by the device under test. The base has a semi-circular groove; the rotating ruler has a linear groove with graduations. When the machine positioning seat slides along the groove of the rotating ruler, the side of the machine positioning seat perpendicular to the sliding direction aligns with the graduations on the rotating ruler, reflecting the transmission distance of the base station signal received by the device under test. In summary, the sliding mechanism of the machine positioning seat within the rotating ruler and the rotation mechanism of the rotating ruler within the base support continuous adjustment of the test position of the base station signal, covering test scenarios with multiple angles and distances. Furthermore, by controlling the relative movement of the rotating ruler and the machine positioning seat within the base using software, the coverage range of the base station signal emitted by the base station under test can be tested by reading the base station signal.

[0008] Furthermore, the rotating ruler is connected to a pin riveted inside the base via a bearing, allowing the rotating ruler to be rotatably mounted on the base; wherein, the end of the rotating ruler rotatably mounted to the base is riveted to a bearing. The rotating ruler can rotate around the center of the base's chassis or the pin, driving the machine under test to rotate around the center of the base's chassis.

[0009] Furthermore, the base station positioning base includes a base and a limiting groove. The base is installed at a metal positioning point on the edge of the base, and the limiting groove is used to limit the base station under test to the base. A hole is opened at the center of the limiting groove, and a hole is also opened at the position of the rotating ruler that is aligned with the center of the limiting groove. A pin riveted inside the base passes through the hole of the limiting groove and the hole of the rotating ruler in sequence and is sleeved into the base station under test, so that the rotating ruler rotates around the center of the limiting groove.

[0010] Furthermore, a caster wheel is mounted on the other surface of the rotating ruler. The caster wheel slides in conjunction with a groove in the base to drive the rotating ruler to rotate around the base. When the rotating ruler is mounted to the center position of the base via a pin, it ensures that the caster wheel is embedded in the groove of the base, thereby ensuring that the rotating ruler remains stable during sliding and supports stable rotation of the rotating ruler around the center position of the base.

[0011] Furthermore, the base has two grooves; the machine positioning seat is mounted on the front of the rotating ruler, and two casters are mounted on the back of the rotating ruler. Each caster is embedded in a groove in the base, allowing the machine positioning seat to be slidably mounted in the groove of the rotating ruler. This achieves the goal of mounting two casters on the back of the rotating ruler, which cooperate with the two grooves in the base to drive the rotating ruler to rotate around the center of the base.

[0012] Furthermore, the machine positioning seat includes a T-slot, the top of which is used to engage the machine under test, and the bottom of which matches the groove of the rotating ruler, so that the sliding position of the machine positioning seat within the groove of the rotating ruler is adjustable to meet the requirements of base station signal transmission distance testing.

[0013] Furthermore, the T-slot includes a longitudinal slot and a transverse slot; the longitudinal slot is parallel to the groove of the rotating ruler, and the transverse slot is perpendicular to the groove of the rotating ruler. The edge of the transverse slot parallel to the groove of the rotating ruler is aligned with the scale markings on the base, and the edge of the transverse slot perpendicular to the groove of the rotating ruler is aligned with the scale markings on the rotating ruler. By setting distance scale markings around the groove of the rotating ruler, the groove of the rotating ruler supports the machine positioning base to drive the machine under test to slide back and forth relative to the base station under test or the base station positioning base, and in real time with the distance scale markings, the signal transmission distance can be accurately measured. In addition, by setting angle scale markings on the edge of the base, the groove of the base supports the rotating ruler to drive the machine under test to rotate left and right relative to the base station under test or the base station positioning base, and in real time with the angle scale markings, the signal transmission angle can be accurately measured.

[0014] Furthermore, when the machine under test is a mobile robot, the two ends of the transverse slot are respectively engaged with the two drive wheels of the mobile robot, and the end of the longitudinal slot away from the transverse slot abuts against the omnidirectional wheel of the mobile robot. The omnidirectional wheel is installed on the front side of the bottom of the mobile robot, and a drive wheel is installed on each of the left and right sides of the middle of the mobile robot. Therefore, the bottom wheel assembly of the machine under test only needs to be engaged with the longitudinal and transverse slots included in the T-slot to be stably placed in the machine positioning seat, adapting to mobile robots with different types of chassis.

[0015] Furthermore, both the base station positioning base and the machine positioning base are detachable structured, allowing for replacement to adapt to various testing scenarios. Therefore, within the base, both the base station positioning base and the machine positioning base are replaceable, forming a non-fixed testing device that allows both the base station under test (DUT) and the machine under test to be interchangeable. This enables the DUT to be installed on the base with a matching base station positioning base, facilitating testing of base station signal interaction between different base station models and the same machine. It also allows the machine under test currently receiving base station signals to be installed on the base with a more structurally compatible machine positioning base, facilitating testing of base station signal interaction between different machines under test and the base station under test. This significantly improves the versatility of the base station signal measurement fixture, overcoming the problem of limited test model types.

[0016] A base station signal measurement method is disclosed, which controls the operation of a base station signal measurement fixture. The method includes: after the device under test (DUT) is connected to a host computer via a serial port, the DUT is controlled to continuously receive base station signals emitted by the base station under test; simultaneously, a rotating ruler is pushed to rotate a machine positioning seat around a base, and the machine positioning seat slides along a groove on the rotating ruler; whenever the rotating ruler causes the machine positioning seat to rotate around the base and align with a scale mark on the base and / or the machine positioning seat slides along the groove on the rotating ruler to align with a scale mark on the rotating ruler, the host computer reads the base station signal emitted by the base station under test in real time, and monitors the scale mark aligned by the DUT on the base and / or the scale mark aligned on the rotating ruler to detect the transmission distance and transmission angle of the base station signal. In summary, the base station signal measurement method provided in this application, which controls the operation of a base station signal measurement fixture, can be widely applied to the R&D testing and production line sampling inspection of smart home devices that interact via base station signals, significantly improving testing efficiency and data accuracy while reducing equipment maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a base station signal measurement fixture disclosed in this application.

[0018] Figure 2This is a top view of an embodiment of the present application, showing the machine under test 60 and the base station under test 50 respectively mounted on the machine positioning seat 40 and the base station positioning seat 30 of the base station signal measurement fixture.

[0019] Figure 3 This is a side cross-sectional view of the connection structure between the machine positioning base 40, the groove on the surface of the rotating ruler, the universal wheel on the back of the rotating ruler, the groove of the base, and the base 10, as disclosed in another embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the structure of a base station positioning device disclosed in another embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the structure of the T-slot in the machine positioning seat disclosed in another embodiment of this application.

[0022] Figure label:

[0023] 10. Base; 101. First groove; 102. Second groove; 103. Angle scale markings; 104. Connection position of the pin riveted inside the base to the rotating ruler.

[0024] 20. Rotary ruler; 201. Groove of the rotary ruler; 202. First universal wheel; 203. Second universal wheel; 204. Distance scale markings.

[0025] 30. Base station positioning seat; 301. Base; 302. Limiting groove; 303. Hole; Hole 303 is connected to position 104 and is regarded as the center position of base 10.

[0026] 50. Base station to be tested;

[0027] 40. Machine positioning seat; 401. T-slot; 4011. Longitudinal slot; 4012. Transverse slot; 402. Alignment with the scale markings on the base; 403. Alignment with the scale markings on the rotary ruler.

[0028] 60. Machine to be tested. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description. They 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features.

[0030] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0031] In existing technologies, the testing and verification of infrared signals emitted by charging base stations to sweeping robots are generally carried out by random sampling of the product performance of charging base stations during the R&D stage or the mass production stage in the factory. The performance range of the sampling includes the emission angle and emission distance of the infrared signal. In order to comprehensively evaluate the performance of the emission parameters of the signal emitted by the charging base station, there is an urgent need for a test fixture that can flexibly adapt to various models of base stations and sweeping robots, can simultaneously measure the signal angle and distance, and supports quick assembly and disassembly.

[0032] This application discloses a base station signal measurement fixture, combined with... Figures 1 to 3 It can be seen that the base station signal measurement fixture includes a base 10, a rotating ruler 20, a base station positioning seat 30, and a machine positioning seat 40. The base 10 has scale markings and grooves inside, and the scale markings are located on the edge of the base 10. Figure 3The semi-circular angle scale mark 103 shown is set as an arc scale on the surface of the base 10 and is arranged around the center of the base 10. The first groove 101 of the base is distributed on the inner side of the angle scale mark 103, and the second groove 102 of the base is set in the middle of the base 10. The first groove 101 and the second groove 102 are arranged in parallel, which plays a guiding role in the same direction for the wheel set that is inserted therein, and they share the same angle scale mark 103.

[0033] The rotating ruler 20 is rotatably mounted on the base 10, and the bottom of the rotating ruler 20 rotates in conjunction with the first groove 101 and the second groove 102 respectively. Preferably, the bottom of the rotating ruler 20 is fitted with... Figure 3 The first caster wheel 202 and the second caster wheel 203 shown are inserted into the first groove 101 and the second groove 102 respectively, driving the rotating ruler 20 to rotate around the center of the base. The angle of rotation can be obtained by reading the aforementioned angle scale mark 103. The base 10 has a semi-circular chassis structure.

[0034] One surface of the rotating ruler 20 is provided with scale markings and grooves, combined with Figures 1 to 3 It can be seen that the edge of the groove 201 of the rotating ruler 20 is set Figure 3 The distance scale mark 204 shown is disposed on the surface of the groove 201 of the rotating ruler 20. The distance scale mark 204 is parallel to the longitudinal direction of the groove 201 of the rotating ruler 20. The groove 201 of the rotating ruler 20 is disposed between the base station positioning seat 40 and the machine positioning seat 30. The guiding direction of the groove 201 of the rotating ruler 20 for the device under test inserted therein includes a straight line direction from the base station positioning seat 40 to the machine positioning seat 30 and a straight line direction from the machine positioning seat 30 to the base station positioning seat 40. The bottom of the groove 201 of the rotating ruler passes through the first groove 101 and the second groove 102 in sequence, and is inserted into the first groove 101 and the second groove 102 in sequence through the second universal wheel 203 and the first universal wheel 202.

[0035] The base station positioning base 30 is mounted on the base 10. The base station positioning base 30 is used to place the base station under test 50 and allows the base station under test 50 to transmit base station signals. The base station positioning base 30 is detachable for placing the base station under test 50. The structures in the base station positioning base 30 for placing the base station under test 50 include limiting structures, snap-fit ​​structures, and other accommodating cavity structures. The coverage area of ​​the base station under test 50 transmitting base station signals includes the horizontal area occupied by the base 10, forming a radiation area centered on the center of the base station under test 50 or the base 10. This allows the signal receiving device to receive base station signals within the coverage area of ​​the rotating ruler 20, and also allows the signal receiving device to receive base station signals within the coverage areas of the first groove 101 and the second groove 102 of the base. This application can select a base station positioning seat with a structure that is compatible with the model of the base station under test. Preferably, the base station under test is also matched with the mounting slot or hole of the base 10 and the rotating ruler 20, so that the base station under test can be stably placed on the base or the designated position of the rotating ruler through the base station positioning seat. The base station under test 50 can transmit base station signals in the direction of the scale markings on the base 10 without obstruction, so as to simultaneously receive the detection of the base station signal transmission distance and the base station signal transmission angle.

[0036] The machine positioning base 40 is used to place the machine under test 60 to receive base station signals. The machine positioning base 40 is detachable for placing the machine under test 60. The machine under test 60 can align the received base station signals, along with the machine positioning base 40, with the distance scale mark 204 (representing the real-time measured transmission distance of the base station signal) on the rotating ruler and the angle scale mark 103 (representing the real-time measured transmission angle of the base station signal) on the base, and feed them back to the host computer software in real time. The host computer software collects and records the coverage range of the base station signal emitted by the base station 50 under test. When the machine under test 60 is a sweeping robot and the base station 50 under test is a charging base station, the base station signal emitted by the base station 50 under test is an infrared signal. The angle and distance coverage range of the guide signal emitted by the charging base station (used as a base station signal to guide the robot back to charging) are measured in real time by the base station signal measuring fixture.

[0037] It should be noted that both the base station positioning base and the machine positioning base are replaceable, meaning both are detachable structures on the base, allowing for the replacement of both the base station under test (UTP) and the machine under test. Specifically, when the base station positioning base 30 is detachably installed on the base 10, the model of the UTP required for testing in the base station signal measurement fixture can be replaced. The UTP to be tested can be installed on the base 10 with a base station positioning base 30 that matches the replaced limiting structure, facilitating the testing of base station signal interaction between different models of base stations and the machine under test. Similarly, to more effectively test the base station signal emitted by the UTP, the model of the machine under test 60 used to receive the base station signal also needs to be adapted. Correspondingly, when the machine positioning base 40 is detachably installed on the base 10, the machine positioning base 40 can be replaced, allowing the machine under test currently receiving the base station signal to be installed on the base 10 with a more structurally compatible machine positioning base 40, facilitating the testing of different machine models interacting with the UTP.

[0038] When measuring the coverage of the base station signal, the device under test 60 is not restricted to being in the same position relative to the base station under test 50. Therefore, the machine positioning seat 40 in this application is slidably installed in the groove of the rotating ruler 20. The machine positioning seat 40 is used to adjust the distance between the device under test 60 and the base station under test 50 (which can also be understood as the base station positioning seat 30) along the groove 201 of the rotating ruler. When the machine positioning seat 40 slides along the groove 201 of the rotating ruler to be aligned with a distance scale mark, the distance between the device under test 60 and the base station under test 50 (which can also be understood as the base station positioning seat 30) corresponds to the currently aligned distance scale mark. This application can use external force to push the machine positioning seat 40 along the groove 201 of the rotating ruler to move closer to or away from the base station 50 under test, thereby measuring the transmission distance of the base station signal along the groove 201 of the rotating ruler one distance scale mark at a time. In this way, the maximum or minimum transmission distance of the base station 50 under test can be detected, forming the effective transmission distance range of the base station under test. Therefore, the base station signal measurement fixture can measure the base station signal across the entire transmission distance.

[0039] In addition, the machine positioning base 40 in this application is also used to drive the machine under test 60 to rotate around the base station 50 under test (which can also be understood as the center of the base station positioning base 30 or the center of the base 10) when the rotating ruler 20 rotates along the groove 201 of the base 10. While the machine positioning base 40 is pushed by an external force to move closer to or away from the base station 50 under test along the groove 201 of the rotating ruler, the rotating ruler 20 can be pushed by an external force to rotate clockwise or counterclockwise around the center of the base 10 (or the base station positioning base 30), and at the same time, the second universal wheel 203 and the first universal wheel 202 installed at the bottom of the rotating ruler 20 are respectively driven to rotate clockwise or counterclockwise. Sliding within the first groove 101 and the second groove 102, the machine positioning base 40 drives the test machine 60 placed inside it to rotate sequentially around the test base station 50 (which can also be understood as the center of the base station positioning base 30 or the center of the base 10) until it aligns with an angle mark. The test machine then receives the base station signal emitted by the test base station 50 at the corresponding angle mark in real time, thereby detecting the maximum or minimum transmission angle of the test base station and forming the effective transmission angle range of the base station signal. Therefore, the base station signal measurement fixture achieves the effect of measuring base station signals at all transmission angles.

[0040] In summary, this application assembles a base station signal measurement fixture using a base with a rotating ruler, a replaceable base station positioning seat, and a machine positioning seat. This forms a testing device for base station signals emitted by a base station under test (BUT) placed on the base station positioning seat to a machine under test (DUT) placed on the machine positioning seat. It can measure different transmission distances of the base station signal as the machine positioning seat moves closer to or further away from the BUT along the groove of the rotating ruler. It can also measure different transmission angles of the base station signal as the rotating ruler rotates around the BUT. This allows for testing the infrared signal transmission angle and distance range of charging base stations during the R&D and mass production stages. It also solves the problems of poor flexibility and limited functionality in existing testing equipment, achieving efficient and multifunctional base station signal testing.

[0041] As one embodiment, the scale markings on the base are used to measure the transmission angle of the base station signal, which is equivalent to marking the angle at which the base station 50 under test transmits the base station signal from the base station positioning base 30 to the machine under test 60 on the machine positioning base 40. The scale markings on the base... Figure 3The display shows angle scale marking 103. Multiple scale markings are set within the curved edge of the same base, for example, sequentially arranged counter-clockwise as 0-degree, 30-degree, 60-degree, and 90-degree markings, etc. Multiple angle scale markings are evenly distributed between the 30-degree and 60-degree markings, with each unit scale marking being 1 degree. This reduces the accuracy of the base station signal transmission angle measurement to 1 degree. Based on this, when the rotating ruler 20 rotates along the groove of the base 10, the machine positioning base 40 can directly read the base station signal transmission angle each time it aligns with an angle scale marking (one scale marking on the base).

[0042] The scale markings on the rotating ruler are used to measure the transmission distance of the base station signal, which is equivalent to marking the distance at which the base station 50 under test transmits the base station signal from the base station positioning base 30 to the machine under test 60 on the machine positioning base 40. The scale markings on the rotating ruler 20 are... Figure 3 The distance scale marking 204 is displayed in the center, and it is typically embossed within the rotating ruler 20. (Combined with...) Figure 5 It can be seen that multiple scale markings are set on the straight edge of the same rotating ruler. For example, scale markings of 900mm, 800mm, and 700mm are set sequentially in the direction of arrow 402. Among them, multiple distance scale markings are divided between the 800mm and 700mm scale markings, and the unit scale can be 10mm. Thus, the accuracy of measuring the transmission distance of the base station signal by the scale markings of the rotating ruler is reduced to 10mm. Based on this, when the machine positioning seat 40 slides along the groove of the rotating ruler 20, the transmission distance of the base station signal can be directly read every time it slides to align with a distance scale marking (one distance scale marking of the rotating ruler).

[0043] Therefore, the base station signal measurement fixture is based on the scale markings in the base and the scale markings in the rotating ruler to form a dual-scale marking measurement system. By using the scale markings in the base and the scale markings in the rotating ruler to measure the angle and distance of the base station signal respectively, the integrated parameter testing is achieved.

[0044] Specifically, in combination Figures 1 to 3 It can be seen that the base 10 has a semi-circular edge, and scale markings are provided on its edge. Figure 3 The arc-shaped scale shown is the angle scale mark 103. The angle scale mark 103 is generally set in the edge of the base in the form of relief. Due to the groove (including) set in the base 10 Figure 3The first groove 101 and the second groove 102 shown are semi-circular in shape. Therefore, the groove provided in the base 10 supports the rotating ruler 20 to rotate 180 degrees around the base station positioning seat 30, and can accurately measure the signal transmission angle deviation (within ±1°) in real time with the angle scale mark 103.

[0045] When the rotating ruler 20 rotates around the base 10, the side of the machine positioning seat 40 perpendicular to the direction of rotation aligns with the scale markings on the base, corresponding to... Figure 5 The angle scale markings pointed to in the opposite direction of arrow 402 in the diagram reflect the transmission angle of the base station signal received by the device under test. The direction of rotation of the rotating ruler 20 around the base 10 is indicated by... Figure 5 The arrow 403 indicates that when the rotating ruler 20 rotates around the base 10, it causes the machine positioning seat 40, which is slidably installed in the groove of the rotating ruler 20, and the machine under test 60 placed thereon to rotate around the base station 50 under test. Each rotation to align with an angle scale mark reflects a transmission angle of the base station signal currently received by the machine under test.

[0046] Combination Figures 1 to 3 It can be seen that the rotating ruler 20 is provided with a straight groove 201, and the straight groove 201 is provided with scale marks. This can be understood as the scale marks being provided on the edge of the groove 201 so that they can be aligned with the edge of the machine positioning seat 40, or the scale marks being provided on the bottom surface of the groove 201 so that the machine positioning seat 40 can fully cover and scan it. Therefore, it can be regarded as the distance scale marks 204 around the groove 201. The groove of the rotating ruler 20 supports the machine positioning seat 40 to drive the machine under test 60 to slide back and forth relative to the base station under test 50 or the base station positioning seat 30, and in real time cooperates with the distance scale marks 204 to accurately measure the signal transmission distance. The graduation value can be 1cm = 10mm.

[0047] When the machine positioning seat 40 slides along the groove of the rotating scale 20, the side of the machine positioning seat 40 perpendicular to the sliding direction aligns with the scale markings of the rotating scale 20, corresponding to... Figure 5 The distance scale markings, pointing in the opposite direction of arrow 403, reflect the transmission distance of the base station signal received by the device under test. The device positioning base 40 slides along the groove of the rotating ruler 20. Figure 5 The arrow 402 indicates that when the machine positioning seat 40 slides along the groove of the rotating ruler 20, it causes the machine positioning seat 40 to slide relative to the base station 50 along the rotating ruler 20. Each time it slides to align with a distance scale mark, it reflects a transmission distance of the base station signal currently received by the machine under test.

[0048] In summary, the sliding mechanism of the machine positioning base within the rotating ruler and the rotation mechanism of the rotating ruler within the base support continuous adjustment of the test position of the base station signal, covering test scenarios with multiple angles and distances. Furthermore, by controlling the relative movement of the rotating ruler and the machine positioning base to different positions within the base through software, the coverage range of the base station signal emitted by the base station under test is tested by reading the base station signal emitted by the base station under test.

[0049] Combination Figures 1 to 4 It can be seen that the rotating ruler 20 is connected to the base 10 via a bearing and a riveted pin, allowing the rotating ruler 20 to be rotatably mounted on the base 10. The end of the rotating ruler 20 rotatably mounted to the base 10 is riveted to a bearing, and the groove of the rotating ruler 20 can extend to the position where the bearing is riveted. Preferably, the rotating ruler 20 is connected to the pin via a ball bearing. The base 10's chassis shape is preferably semi-circular as shown in the figure, and the pin is riveted to the center of the chassis, allowing for fixing or adjusting the position of the rotating ruler. Two parallel arc-shaped grooves are provided around the outer side of the pin, such as... Figure 3 The second groove 102 and the first groove 101 are shown to guide the rotation of the rotating ruler; the rotating ruler 20 can rotate around the center of the base 10 or the pin, driving the machine under test to rotate around the center of the base 10.

[0050] Combination Figures 1 to 4 It can be seen that the base station positioning base 30 includes a base 301 and a limiting groove 302. The base 301 is installed on the metal positioning point on the edge of the base 10 (aligned with the metal positioning point on the edge of the base 10). Figure 4 At the corner of the base 301 surface (the hole position), the base 301 can be fixed to the metal positioning point on the edge of the base 10 by magnetic adsorption, studs, etc.

[0051] The limiting groove 302 is used to limit the base station 50 under test to the base 10. The groove shape of the limiting groove 302 is adapted to the base station 50 under test so as to fix the base station 50 under test at a chassis position that is compatible with the base 10.

[0052] A hole 303 is provided at the center of the limiting groove 302, and the center of the limiting groove 302 can be regarded as being aligned with the center of the base 10. A hole is also provided in the rotating ruler 20 at the position aligned with the center of the limiting groove 302. A pin is riveted inside the base 10 (at the center of the base 10), which can be detachably installed on the base to facilitate the connection of the rotating ruler and the base station positioning seat, or even the base station to be tested.

[0053] The pin riveted inside the base 10 (at the center of the base 10) passes through the hole 303 of the limiting groove 302 and the hole of the rotating ruler 20 and is fitted into the base station 50 to be tested, thereby axially nesting the base station 50 to be tested onto the base 10, and the base station 50 to be tested can then be placed on the base station positioning seat 30; the hole of the rotating ruler 20 is fitted onto the pin through a bearing, so that the rotating ruler 20 rotates around the center position of the limiting groove 302.

[0054] Based on the aforementioned embodiment, where a rotating ruler 20 has scale markings and grooves 201 on one surface, as shown in the example... Figure 3 As shown, a universal wheel is installed on the other surface of the rotating ruler 20. That is, at least one universal wheel is installed on the surface of the rotating ruler 20 opposite to the groove of the base. The universal wheel slides in cooperation with the groove of the base to drive the rotating ruler to rotate around the base. When the rotating ruler is installed to the center position of the base through the pin, it is ensured that the universal wheel is embedded in the groove of the base, thereby ensuring that the rotating ruler remains stable during the sliding process and supports the stable rotation of the rotating ruler around the center position of the base.

[0055] Specifically, the base has two recesses, such as... Figure 3 As shown, a second groove 102 and a first groove 101 are sequentially arranged on the surface of the base 10 from the center outwards. This can also be considered as two grooves designed on both sides of the center of the base 10. The machine positioning seat 40 is installed on the front of the rotating ruler 20, and two casters are installed on the back of the rotating ruler 20. Preferably, one caster is installed on each side of the machine positioning seat 40, and each caster is embedded in a groove of the base 10, so that the machine positioning seat 40 is slidably installed in the groove of the rotating ruler 20. For example, a second caster 203 is installed on the surface of the rotating ruler 20 opposite to the first groove 101, and the second caster 203 slides in the first groove 101. A first caster 202 is installed on the surface of the rotating ruler 20 opposite to the second groove 102, and the first caster 202 slides in the second groove 102. In summary, two casters are installed on the back of the rotating ruler, which cooperate with the two grooves of the base to drive the rotating ruler to rotate around the center of the base.

[0056] As one example, combined with Figure 1 , Figure 2 , Figure 3 and Figure 5It is understood that the machine positioning base 40 includes a T-slot, the top of which is used to engage the machine under test 60. Furthermore, the machine positioning base 40 is detachable and replaceable within the groove on the rotating ruler 20, facilitating testing of different machine models. Preferably, the bottom of the T-slot is a dovetail slider or a T-shaped slider; the T-slot actually forms a groove with a certain depth and width to accommodate machines of different sizes under test. The bottom of the T-slot matches the groove of the rotating ruler 20, making the sliding position of the machine positioning base 40 within the groove of the rotating ruler 20 adjustable. When the rotating ruler 20 slides to the end of the groove on the base, the maximum test distance (corresponding to the maximum transmission distance of the base station signal) or the minimum test distance (corresponding to the minimum transmission distance of the base station signal) can be reached.

[0057] The rotating ruler has scale markings to measure signal transmission distance. Each time the machine positioning base 40 slides within the groove 201 of the rotating ruler 20 to align with a distance scale marking, it measures one transmission distance of the base station signal, thus meeting the requirements for base station signal transmission distance testing.

[0058] like Figure 5 As shown, the T-slot includes a longitudinal slot 4011 and a transverse slot 4012. The longitudinal slot 4011 is parallel to the groove 201 of the rotating ruler, and the transverse slot 4012 is perpendicular to the groove 201 of the rotating ruler. The longitudinal slot 4011 passes through the transverse slot 4012. The longitudinal slot 4011 and the transverse slot 4012 are integrally formed or assembled together. The groove in the longitudinal slot 4011 is connected to the groove in the transverse slot 4012. The edge of the transverse slot 4012 that is parallel to the groove 201 of the rotating ruler is aligned with the scale markings on the base 10. Figure 5 The edge of the horizontal slot 4012, parallel to the groove 201 of the rotating ruler, extends in the opposite direction of arrow 402, which points to the scale markings (i.e., angle scale markings 103) of the base 10; the edge of the horizontal slot 4012, perpendicular to the groove 201 of the rotating ruler, aligns with the scale markings (i.e., distance scale markings 204) of the rotating ruler 20. Figure 5 The extension direction of the edge of the horizontal groove 4012 that is perpendicular to the groove 201 of the rotating ruler is the opposite direction of arrow 403, which points to the scale mark (i.e., distance scale mark 204) of the rotating ruler 20.

[0059] By setting distance scale markings 204 around the groove 201, the groove of the rotating ruler 20 supports the machine positioning base 40 to drive the machine under test 60 to slide back and forth relative to the base station 50 or base station positioning base 30. In real time, in conjunction with the distance scale markings 204, the signal transmission distance can be accurately measured, with a graduation value of 10mm. Additionally, by setting angle scale markings 103 on the edge of the base 10, the groove of the base supports the rotating ruler 20 to drive the machine under test 60 to rotate left and right relative to the base station 50 or base station positioning base 30. In real time, in conjunction with the angle scale markings 103, the signal transmission angle can be accurately measured, with a graduation value of 1 degree.

[0060] When the machine under test 60 is a mobile robot, for example, the machine under test 60 is Figure 2 and Figure 3 The circular sweeping robot 60 shown has a universal wheel installed on the front side of the bottom of the mobile robot, and an active wheel installed on the left and right sides of the middle of the mobile robot. A T-shaped groove 401 is set according to the layout of the horizontal groove 4012 and the vertical groove 4011. Figure 5 The two ends of the horizontal slot 4012 shown are respectively engaged with the two active wheels of the mobile robot. The two ends of the horizontal slot 4012 are respectively set as concave arc-shaped slots to embed the two active wheels of the sweeping robot, making it difficult for the sweeping robot to move back and forth. Figure 5 The end of the longitudinal slot 4011 furthest from the transverse slot 4012 (the front end of the longitudinal slot 4011) abuts against the omnidirectional wheel of the mobile robot. Since the two ends of the transverse slot 4012 are respectively engaged with the two drive wheels of the mobile robot, the end of the longitudinal slot 4011 furthest from the transverse slot 4012 can engage the omnidirectional wheel of the mobile robot, allowing the mobile robot to be fully engaged in the T-slot 401 of the machine positioning seat 40. This allows the machine positioning seat 40 to stably drive the mobile robot to slide back and forth relative to the base station under test along the groove of the rotating ruler, and also allows the machine positioning seat 40 to stably drive the mobile robot to rotate left and right along the groove of the base. Therefore, the bottom wheel assembly of the machine under test only needs to be engaged in the longitudinal and transverse slots included in the T-slot to be stably placed in the machine positioning seat, adapting to sweeping robots with different types of chassis.

[0061] In the foregoing embodiments, both the base station positioning base and the machine positioning base are detachable base structures, which can be replaced to adapt to various test scenarios.

[0062] Specifically, the base station positioning seat can be detachably installed on the base or rotating ruler. (Combined with...) Figures 2 to 4It is known that the base 301 and the limiting groove 302 in the base station positioning seat 30 can be detachably installed together. A quick-release buckle interface or other connecting components can be designed between the base 301 and the limiting groove 302. The base station positioning seat 30 is set on the base 10 and can be used with the base station under test. It supports the replacement and fixing of different models of charging base stations, which facilitates the testing of different charging base stations and improves the flexibility and compatibility of the base station signal measurement fixture for base station signal testing.

[0063] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 It is known that the longitudinal slot 4011 and the transverse slot 4012 in the machine positioning seat 40 are combined and spliced ​​together. The longitudinal slot 4011 and the transverse slot 4012 can be designed with quick-release buckle interfaces or other connecting components to connect together and snap into the groove 201 of the rotating ruler. The positional relationship between the longitudinal slot 4011 and the transverse slot 4012 is adjustable. The size of the longitudinal slot 4011 and the transverse slot 4012 supports full coverage from mini type (diameter 40mm) to commercial type (diameter 340mm), and is suitable for installing a variety of sweeping robot models.

[0064] Therefore, both the base station positioning base and the machine positioning base are replaceable within the base, forming a non-fixed testing device that allows both the base station under test (DUT) and the machine under test to be interchangeable. This allows the DUT to be installed on the base 10 with a base station positioning base 30 that matches the replaced limiting structure, facilitating testing of base station signal interaction between different models of base stations and the same machine. It also allows the machine under test currently receiving base station signals to be installed on the base 10 with a more structurally compatible machine positioning base 40, facilitating testing of base station signal interaction between different machines under test and the base station under test. This significantly improves the versatility of the base station signal measurement fixture, overcoming the problem of limited test model types.

[0065] Based on the foregoing embodiments, this application also discloses a base station signal measurement method. This method controls the operation of the base station signal measurement fixture. When testing a base station of a certain type and a device under test (DUT) of a certain model, the DUT is fixed in a machine positioning base, and the base station is fixed in a base station positioning base. The base station can be a charging base station, and the DUT can be a robotic vacuum cleaner. The base station signal can be an infrared signal. The power supply for the base station under test can be connected to the built-in voltage regulator circuit of the base station signal measurement fixture or to other power supply equipment to drive the transmission of the base station signal.

[0066] The base station signal measurement method disclosed in this application includes:

[0067] The device under test (DUT) is connected to a host computer via a serial port. The host computer can be a desktop computer, laptop computer, server, or other device with serial port software installed. This application can connect the DUT and the host computer via a USB-to-serial module.

[0068] After the device under test (DUT) is connected to the host computer via a serial port, the host computer software can be started, and the base station signal test mode can be selected. The base station under test continues to emit base station signals. The device under test is controlled to continuously receive base station signals emitted by the base station under test. Simultaneously, this application uses a rotating ruler to drive the machine positioning seat to rotate around the base, corresponding to measuring different transmission angles. The machine positioning seat is also pushed along the groove of the rotating ruler to change the distance between the DUT and the base station under test, corresponding to measuring different transmission distances. This pushing can be driven by an external motor or manually, allowing the host computer to monitor the DUT's reception of base station signals and record the transmission distance and angle parameters of the base station signals. Thus, by pushing the rotating ruler and the machine positioning seat to different positions on the base, the actual coverage range of the base station signal can be tested by reading the base station signals emitted by the base station under test.

[0069] Whenever the rotating ruler drives the machine positioning seat to rotate around the base and align with a scale mark on the base and / or the machine positioning seat slides along the groove of the rotating ruler to align with a scale mark on the rotating ruler, the machine under test receives the base station signal emitted by the base station under test in real time. The host computer reads the base station signal emitted by the base station under test in real time and monitors the scale mark aligned by the machine under test on the base (corresponding to the angle scale mark 103 in the figure) and / or the scale mark aligned on the rotating ruler (corresponding to the distance scale mark 204 in the figure) to detect the transmission distance and transmission angle of the base station signal. Schematic, the rotating ruler is pushed to the target position (e.g., 30 degrees off relative to the central axis of the base station under test, and 1.2m away from the center of the limiting groove). The host computer software automatically records the coordinates, including the angle scale mark and distance scale mark currently aligned by the machine positioning seat. If the signal does not meet the standard, continue to adjust the position of the rotating ruler and the machine positioning seat, or replace the machine positioning seat or the base station positioning seat and repeat the measurement. That is, replace different positioning structures (the machine positioning seat or the base station positioning seat) or adjust the sliding position, and repeat the test to adapt to other models.

[0070] By executing the base station signal measurement method, the machine positioning base 40 is pushed along the groove 201 of the rotating ruler to approach or move away from the base station 50 under test. This allows the transmission distance of the base station signal to be measured one by one along the groove 201 of the rotating ruler, thereby detecting the maximum or minimum transmission distance of the base station 50 under test and forming the effective transmission distance range of the base station under test. Therefore, the base station signal measurement fixture achieves the effect of measuring the base station signal across the entire transmission distance.

[0071] In addition, by executing the base station signal measurement method, while pushing the machine positioning seat 40 along the groove 201 of the rotating ruler towards or away from the base station 50 under test, the rotating ruler 20 can be pushed by external force to rotate clockwise or counterclockwise around the center position of the base 10 (or the base station positioning seat 30). At the same time, the second universal wheel 203 and the first universal wheel 202 installed at the bottom of the rotating ruler 20 slide in the first groove 101 and the second groove 102 respectively. Then, the machine positioning seat 40 drives the machine under test 60 placed inside it to rotate one angle scale mark at a time. That is, when it rotates and aligns with an angle scale mark around the base station 50 under test (which can also be understood as the center of the base station positioning seat 30 or the center position of the base 10), the machine under test receives the base station signal emitted by the base station 50 under test in real time at the location of the corresponding angle scale mark. In this way, the maximum or minimum transmission angle of the base station under test is detected, forming the effective transmission angle range of the base station signal. Therefore, the base station signal measurement fixture achieves the effect of measuring base station signals at all transmission angles.

[0072] In summary, the base station signal measurement method provided in this application controls the operation of the base station signal measurement fixture and can be widely applied to the research and development testing and production line sampling inspection of smart home devices that interact through base station signals, significantly improving testing efficiency and data accuracy while reducing equipment maintenance costs.

[0073] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A base station signal measurement fixture, characterized in that, The base station signal measurement fixture includes a base, a rotating ruler, a base station positioning base, and a machine positioning base, wherein the base station positioning base and the machine positioning base are both replaceable. The base has scale markings and grooves inside; The rotating ruler is rotatably mounted on the base, and one surface of the rotating ruler is provided with scale markings and grooves; The base station positioning seat is installed on the base plate. The base station positioning seat is used to place the base station under test and allow the base station under test to transmit base station signals to the outside world. The machine positioning base is used to place the machine under test (DUT) to receive base station signals. The machine positioning base is slidably installed in the groove of the rotating ruler. The machine positioning base is used to adjust the distance between the DUT and the base station under test along the groove of the rotating ruler. The machine positioning base is also used to drive the DUT to rotate around the base station under test when the rotating ruler rotates along the groove of the base.

2. The base station signal measurement fixture according to claim 1, characterized in that, The scale markings on the base are used to measure the transmission angle of the base station signal; the scale markings on the rotating ruler are used to measure the transmission distance of the base station signal.

3. The base station signal measurement fixture according to claim 2, characterized in that, The base has a semi-circular edge and a scale mark on its edge. When the rotating ruler rotates around the base, the side of the machine positioning seat that is perpendicular to the direction of rotation aligns with the scale mark on the base to reflect the transmission angle of the base station signal received by the machine under test. The groove inside the base is semi-circular in shape. The rotating ruler has a straight groove with graduation marks inside. When the machine positioning seat slides along the groove of the rotating ruler, the side of the machine positioning seat perpendicular to the sliding direction aligns with the graduation marks of the rotating ruler to reflect the transmission distance of the base station signal received by the machine under test.

4. The base station signal measurement fixture according to claim 1, characterized in that, The rotating ruler is connected to the base via a bearing and a pin riveted inside, allowing the rotating ruler to be rotatably mounted on the base. The rotating ruler has a bearing riveted to one end that is rotatably mounted on the base.

5. The base station signal measurement fixture according to claim 1, characterized in that, The base station positioning base includes a base and a limiting groove. The base is installed at a metal positioning point on the edge of the base, and the limiting groove is used to limit the base station to be tested on the base. A hole is made at the center of the limiting groove, and a hole is also made at the position of the rotating ruler that is aligned with the center of the limiting groove. The pins riveted inside the base pass through the holes of the limiting groove and the holes of the rotating ruler in sequence and are fitted into the base station to be tested, so that the rotating ruler rotates around the center of the limiting groove.

6. The base station signal measurement fixture according to claim 1, characterized in that, A caster wheel is installed on the other surface of the rotating ruler. The caster wheel slides in conjunction with the groove of the base to drive the rotating ruler to rotate around the base.

7. The base station signal measurement fixture according to claim 6, characterized in that, The base has two grooves; the machine positioning seat is installed on the front of the rotating ruler, and two casters are installed on the back of the rotating ruler. Each caster is embedded in a groove of the base, so that the machine positioning seat can be slidably installed in the groove of the rotating ruler.

8. The base station signal measurement fixture according to claim 1, characterized in that, The machine positioning seat includes a T-slot. The top of the T-slot is used to engage the machine under test, and the bottom of the T-slot matches the groove of the rotating ruler, so that the sliding position of the machine positioning seat in the groove of the rotating ruler is adjustable to meet the requirements of base station signal transmission distance testing.

9. The base station signal measurement fixture according to claim 8, characterized in that, The T-slot includes a longitudinal slot and a transverse slot; the longitudinal slot is arranged parallel to the groove of the rotating ruler, and the transverse slot is arranged perpendicular to the groove of the rotating ruler. The edge of the transverse slot that is parallel to the groove of the rotating ruler is aligned with the scale markings on the base, and the edge of the transverse slot that is perpendicular to the groove of the rotating ruler is aligned with the scale markings on the rotating ruler.

10. The base station signal measurement fixture according to claim 9, characterized in that, When the machine under test is a mobile robot, the two ends of the transverse slot are respectively engaged with the two drive wheels of the mobile robot, and the end of the longitudinal slot away from the transverse slot abuts against the omnidirectional wheel of the mobile robot. The omnidirectional wheel is installed on the front side of the bottom of the mobile robot, and a drive wheel is installed on the left and right sides of the middle of the mobile robot.

11. The base station signal measurement fixture according to claim 5 or 8, characterized in that, Both the base station positioning base and the machine positioning base are detachable base structures, which can be replaced to adapt to various testing scenarios.

12. A method for measuring base station signals, characterized in that, The base station signal measurement method is used to control the operation of the base station signal measurement fixture according to any one of claims 1 to 10; Base station signal measurement methods include: After the device under test is connected to the host computer via a serial port, the host computer controls the device under test to keep receiving the base station signal sent by the base station under test; at the same time, the device under test is driven to rotate around the base by pushing the rotating ruler, and the device under test is driven to slide along the groove of the rotating ruler. Whenever the rotating ruler drives the machine positioning seat to rotate around the base until it aligns with a scale mark on the base and / or the machine positioning seat slides along the groove of the rotating ruler until it aligns with a scale mark on the rotating ruler, the host computer device reads the base station signal emitted by the base station under test in real time, and simultaneously monitors the scale mark aligned by the machine under test on the base and / or the scale mark aligned on the rotating ruler, in order to detect the transmission distance and transmission angle of the base station signal.

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