Auxiliary detection device for monitoring precision of gap camera

Abstract

The utility model discloses an auxiliary detection device for monitoring precision of a gap camera. The auxiliary detection device comprises a device base, a sliding table base is arranged at the rear end of the top of the device base; the servo motor is arranged at the left end of the top of the sliding table base; an output shaft on the right side of the servo motor is connected with the left end of the ball screw through a coupler; a lead screw nut is arranged on the ball screw; a sliding seat is arranged on the lead screw nut; mounting seats are arranged at the front ends of the sliding seats; the front end of the mounting seat protrudes out of the front end of the sliding seat; a gap camera is arranged at the front end of the mounting seat in a forward protruding manner; an indication rod is arranged at the top front end of the device base; the top of the indication rod is provided with a notch; and the notch camera is positioned above the notch. According to the utility model, the monitoring precision of the notched camera can be accurately and reliably detected and obtained, the investment of the notched camera with poor monitoring precision is avoided, and the notched camera can be applied to an actual working scene to guarantee the safety of railway transportation.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to an auxiliary detection device for monitoring the accuracy of a notch camera. Background Technology

[0002] A switch machine is an important signaling infrastructure used to reliably change the position of a turnout, change the direction of the turnout, lock the turnout switch rail, and reflect the position of the turnout. It can effectively ensure traffic safety, improve transportation efficiency, and reduce the labor intensity of traffic operators.

[0003] The function of a switch machine is to switch and lock the point rail (spot rail), change the opening direction of the turnout, and reflect the position status of the point rail (spot rail) through contact points. The switch machine is one of the important pieces of equipment ensuring railway transportation safety. If the switch machine fails to switch the turnout properly, it will affect the normal train operation order, and in severe cases, may lead to train collisions or derailments. Therefore, the switch machine is the electric traction equipment for railway turnouts, and its reliability is crucial to the safety of railway transportation.

[0004] For switch machines, the switch machine notch (i.e., the switch machine indicator notch) reflects the contact status and position of the switch point rail (spot rail) and the stock rail (wing rail). If the contact rail and stock rail are not properly aligned, it may cause serious consequences such as train derailment. Therefore, switch machine notch monitoring is of great significance and has always been an important part of the maintenance work for electrical workers. Therefore, it is necessary to monitor switch machine notches in real time.

[0005] With the increasing number of high-speed and high-density railway sections, the requirements for the quality and stability of turnout operation are becoming increasingly stringent in order to ensure traffic safety. The gap monitoring system of the switch machine can monitor the turnout status in real time, thereby ensuring the normal switching of the turnout.

[0006] The gap monitoring system of a switch machine is the foundation for the maintenance of turnout switching equipment and an important tool for signal maintenance and management. The task of the gap monitoring system is to monitor the distance between one edge of the gap (which is a groove) of the indicator rod that has fallen into the inspection post and the edge of the inspection post into which it has fallen (i.e., the gap width, also known as the notch width; the gap width is the distance between the edge of the notch in the indicator rod and the edge of the inspection post).

[0007] Currently, the basic implementation of the switch machine gap monitoring system is as follows: by installing an image acquisition device (specifically a gap camera) inside the switch machine to capture images of the gap, real-time video monitoring of the switch machine gap is achieved.

[0008] Among them, the gap camera is an important device in the gap monitoring system. The monitoring accuracy of the gap camera directly affects and determines the monitoring accuracy of the gap monitoring system in terms of gap gaps. Therefore, it is necessary to test the monitoring accuracy of the gap camera to avoid deploying and applying gap cameras with poor monitoring accuracy in actual working scenarios, so as to ensure the safety of railway transportation.

[0009] It should be noted that the switch machine notch refers to the groove on the indicator rod of the switch machine that allows the indicator rod to fall into the inspection post. The notch camera is a camera used to capture the notch gap; it is part of the notch monitoring system. The notch gap refers to the distance between the edge of the inspection post and the edge of the groove (i.e., the notch) on the indicator rod after the inspection post has fallen into the groove. The width of the notch gap is this distance. During normal operation of the switch machine, the position of the inspection post relative to the notch camera remains fixed, while the position of the indicator rod relative to the notch camera changes, and consequently, the position of the notch on the indicator rod also changes relative to the notch camera. Utility Model Content

[0010] The purpose of this invention is to address the technical deficiencies of existing technologies by providing an auxiliary detection device for improving the accuracy of notch camera monitoring.

[0011] Therefore, this utility model provides an auxiliary detection device for the monitoring accuracy of a notch camera, including a horizontally distributed device base;

[0012] The top rear end of the device base is provided with a horizontally distributed slide base;

[0013] A servo motor is installed at the top left end of the slide base;

[0014] The output shaft on the right side of the servo motor is connected to the left end of the ball screw via a coupling;

[0015] A screw nut is provided on the ball screw;

[0016] The lead screw nut is equipped with horizontally distributed slides;

[0017] A mounting base is fixedly installed at the front end of the slide;

[0018] The front end of the mounting base protrudes beyond the front end of the slide.

[0019] The front end of the mounting base has a notched camera protruding forward;

[0020] The top front end of the device base is provided with horizontally distributed indicator rods;

[0021] The top of the indicator rod has a notch;

[0022] The camera lens is positioned downwards and above the notch.

[0023] As can be seen from the technical solution provided by this utility model above, compared with the prior art, this utility model provides an auxiliary detection device for the monitoring accuracy of a notch camera. The design is scientific. By installing the notch camera onto the auxiliary detection device for the monitoring accuracy of the notch camera provided by this utility model, it is beneficial for staff to accurately and reliably detect and obtain the monitoring accuracy of the notch camera. This avoids the deployment and application of notch cameras with poor monitoring accuracy in actual work scenarios, thus ensuring the safety of railway transportation and having significant practical significance.

[0024] This utility model is a tool for verifying the monitoring accuracy of a notch camera.

[0025] It should be noted that after the switch machine is in position, the change in the gap is caused by the relative displacement of the edge of the gap (i.e., the groove on the indicator rod) relative to the edge of the inspection post. However, the gap camera does not have relative displacement with respect to the inspection post, and the position of the inspection post relative to the gap camera remains fixed. Therefore, this invention converts the measurement of the gap width into measuring the relative displacement of the edge of the gap (i.e., the groove on the indicator rod) relative to the camera. Thus, by moving the camera and fixing the indicator rod, the change in the gap (i.e., simulating the displacement of the edge of the gap on the indicator rod relative to the edge of the inspection post) can be simulated. Attached Figure Description

[0026] Figure 1 A top view of an auxiliary detection device for monitoring the accuracy of a notch camera provided by this utility model, without the notch camera installed;

[0027] Figure 2 A top view of an auxiliary detection device for monitoring the accuracy of a notch camera, provided by this utility model, with the notch camera already installed;

[0028] Figure 3 This is a schematic diagram illustrating the monitoring principle of the notch gap on the rod;

[0029] Figure 4 This is a schematic diagram showing the notch on the indicator pole being photographed by the notch camera when it is stationary (i.e., in its initial state).

[0030] Figure 5 This is a diagram showing the image captured by the notch camera on the indicator pole as it moves a certain distance. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, 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", "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 utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 utility model.

[0033] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0034] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Example 1

[0036] See Figures 1 to 5 This utility model provides an auxiliary detection device for monitoring the accuracy of a notch camera, including a horizontally distributed device base 10;

[0037] The top rear end of the device base 10 is provided with a horizontally distributed slide base 9;

[0038] A servo motor 1 is installed at the top left end of the slide base 9;

[0039] The output shaft on the right side of the servo motor 1 is connected to the left end of the ball screw 8 via coupling 3;

[0040] A screw nut 5 is provided on the ball screw 8;

[0041] A horizontally distributed slide block 4 is provided on the lead screw nut 5;

[0042] A mounting base 15 is fixedly provided at the front end of the slide 4;

[0043] The front end of the mounting base 15 protrudes beyond the front end of the slide 4;

[0044] The front end of the mounting base 15 is provided with a notched camera 20 (i.e., an image acquisition camera) that protrudes forward.

[0045] The top front end of the device base 10 is provided with horizontally distributed indicator rods 14 (which can be indicator rods of the same specifications and size as the original indicator rods on the switch machine);

[0046] See Figure 3 As shown, a notch 1401 (i.e., a groove) is provided at the top of the rod 14;

[0047] The lens 2001 of the notched camera 20 is positioned downwards and above the notch 1401.

[0048] It should be noted that the lead screw nut 5 is fitted onto the ball screw 8, and the lead screw nut 5 and the ball screw 8 together form a ball screw pair. The ball screw pair is a helical transmission element with steel balls as rolling elements between the screw and the nut. It can convert the rotational motion of the ball screw into the linear motion of the lead screw nut. When the ball screw acts as the driving element, the lead screw nut will convert the rotation angle of the screw into linear motion according to the corresponding lead specification. The driven workpiece (e.g., the slide 4) can be connected to the lead screw nut through the nut seat, thereby achieving the corresponding linear motion. The working principle and related structural design of the ball screw pair are well-known and mature existing technologies, and will not be elaborated further here.

[0049] In this utility model, it should be noted that, see Figure 3 As shown, the notch 1401 (i.e., groove) of the rod 14 can be used to fall into the inspection post 1400 (which can be an inspection post of the same specifications and size as the original inspection post on the switch machine).

[0050] For a switch machine, when the switch machine is in position (i.e., the turnout switching operation is in place), the inspection post 1400 of the switch machine falls into the notch (groove) 1401 of the indicator rod 14. The gap between the edge of the inspection post 1400 and the edge of the notch is the notch gap. This invention can simulate the notch gap of a switch machine and allow the image of the notch gap to be captured and acquired by the notch camera 20.

[0051] In this utility model, specifically, a second side plate 7 is vertically arranged on the front and rear sides of the top of the slide base 9, and is distributed horizontally.

[0052] The two second side panels 7 are arranged parallel to each other;

[0053] On the opposite side of each of the two second side plates 7, a set of horizontally distributed linear guide rails 6 are respectively provided;

[0054] The slide block 4 is slidably connected to the linear guide rail 6;

[0055] It should be noted that when the slide 4 moves laterally left and right, it moves linearly along the linear guide rail 6.

[0056] In practice, the bottom of the slide block 4 is equipped with sliders corresponding to each linear guide rail 6;

[0057] The slider is connected to the linear guide rail 6 via a sliding fit.

[0058] Furthermore, the top of the linear guide 6 has laterally distributed guide grooves (recesses);

[0059] The slider is slidably connected to the guide groove (recess);

[0060] The slider and the guide groove (groove) are matched in shape and size.

[0061] In this utility model, for specific implementation, see [link to relevant documentation]. Figure 1 , Figure 2 As shown, the top front end of the device base 10 is provided with an inner clamping plate 13 and an outer clamping plate 12 that are horizontally distributed.

[0062] The outer card plate 12 is located directly in front of the inner card plate 13 and is arranged parallel to the inner card plate 13.

[0063] An indicator rod 14 is provided on the front side of the inner plate 13.

[0064] In practice, the front side of the inner plate 13 is tightly fitted to the rear side of the indicator rod 14;

[0065] The front side of the indicator rod 14 is connected to the outer retaining plate 12 by a fifth fastener 19 (e.g., a screw).

[0066] It should be noted that one side of the indicator rod 14 is tightly attached to the inner plate 13, and the other side is fixed by the fifth fastener 19 passing through the outer plate 12.

[0067] Furthermore, the outer retaining plate 12 is provided with a plurality of longitudinally distributed threaded holes at the position corresponding to the indicator rod 14;

[0068] The fifth fastener 19 passes longitudinally through the threaded hole on the outer card plate 12 and is threadedly connected to the threaded hole;

[0069] The rear end of the fifth fastener 19 abuts against the front side of the indicator rod 14 (i.e., they are in close contact).

[0070] In this utility model, specifically, a first side plate 2 is vertically arranged at the top left end of the slide base 9;

[0071] A servo motor 1 is installed on the first side plate 2;

[0072] In specific implementation, a through hole is provided horizontally through the first side plate 2;

[0073] The right side wall of the main housing of the servo motor 1 is located on the left side wall of the first side plate 2;

[0074] The output shaft on the right side of the servo motor 1 passes through the through hole in the first side plate laterally and is connected to the coupling 3.

[0075] In this utility model, specifically, a first lead screw support plate 22 and a second lead screw support plate 23 are respectively provided at the top left and right ends of the slide base 9;

[0076] The first lead screw support plate 22 and the second lead screw support plate 23 are arranged symmetrically from left to right;

[0077] The first lead screw support plate 22 and the second lead screw support plate 23 are respectively provided with a first bearing mounting hole and a second bearing mounting hole at positions corresponding to the ball screw 8;

[0078] The first bearing and the second bearing are respectively installed in the first bearing mounting hole and the second bearing mounting hole;

[0079] The left and right ends of the ball screw 8 are connected to the inner rings of the first bearing and the second bearing, respectively.

[0080] Therefore, based on the above design, the ball screw 8 can rotate smoothly under the drive of external force (such as the rotational driving force provided by the servo motor 1).

[0081] In this invention, specifically, the slide block 4 is fixed to the top of the lead screw nut 5 by a plurality of first fasteners 16 (e.g., screws).

[0082] Mounting base 15 is secured to slide 4 by a plurality of third fasteners 18 (e.g., screws).

[0083] In this invention, specifically, the rear end of the housing of the notched camera 20 is fixed to the mounting base 15 by a plurality of sixth fasteners 21 (e.g., screws).

[0084] In this utility model, specifically, the linear guide rail 6 is fixed to the second side plate 7 by a second fastener 17 (e.g., a screw);

[0085] In this invention, specifically, the notched camera 20 is fixed to the mounting base 15 by a sixth fastener 21 (e.g., a screw).

[0086] In this invention, specifically, the slide base 9 is fixed to the device base 10 by a seventh fastener (e.g., a screw).

[0087] The following explains the original gap monitoring system on the switch machine. The working principle of gap monitoring is as follows:

[0088] See Figure 3 As shown, in the existing switch machine gap monitoring system, the lens 2001 of the gap camera is positioned above the gap of the indicator rod 14. When the switch machine indicator rod is in position, the inspection post falls into the gap of the indicator rod. At this time, the gap camera takes a picture of the gap, and the width value t of the gap can be obtained based on the captured image.

[0089] Given that the required landing position of the inspection post 1400 is fixed (i.e., falling vertically in a vertical plane), but the actual landing position of the inspection post 1400 within the notch of the indicator rod after the switch machine indicator rod has moved into position is not fixed, a fixed position (the position of the edge of the inspection post) can be directly marked in the image captured by the camera. Then, the position of the edge of the notch 1401 can be obtained through the image. Finally, the image is captured and processed. By using the existing, mature, and widely applied switch machine notch image processing method already used in the original notch monitoring system of the switch machine, the width value t of the notch gap (i.e., the gap between the edge of the inspection post and the edge of the notch of the indicator rod after the inspection post falls into the groove on the indicator rod) can be obtained.

[0090] It should be noted that, in this utility model, the width value t of the gap can be obtained from the image captured by the gap camera using an existing gap monitoring system. For example, the gap monitoring system can be the JQ1 type switch machine gap monitoring system produced by Tianjin Railway Signal Co., Ltd.

[0091] To better understand the technical solution of this utility model, the working principle of this utility model for simulating gap monitoring is explained below.

[0092] Figure 4 This is a schematic diagram showing the notch on the indicator rod being photographed by the notch camera 20 when it is not moved (i.e., in its initial state); Figure 5 This is a schematic diagram showing the image taken by the notch camera 20 on the indicator pole when it moves a certain distance.

[0093] See Figure 4 , Figure 5 As shown, the lens 2001 of the notch camera 20 is aimed at the area to be monitored. The shooting range of the notch gap image of the notch camera 20 is A, which is the rectangular area pointed to in the figure; the notch 1401 on the rod 14 is the distribution area between the straight line B1 and the straight line B.

[0094] In this utility model, in the notch gap image captured by the notch camera 20, the edge line B of the notch 1401 (i.e., the groove edge) is simulated and calibrated in advance as the simulated calibration line C (a virtual line) of the edge of the inspection post 1400 when the inspection post 1400 is close to the edge of the notch 1401.

[0095] It should be noted that when the inspection post 1400 is tightly attached to the edge of the notch 1401, i.e., when the notch gap width is 0, the edge of the inspection post 1400 coincides with the edge of the notch 1401, and they are on the same straight line. That is, at this time, the edge line B of the notch 1401 coincides with the simulated calibration line C of the edge of the inspection post 1400. Therefore, for this utility model, Figure 4 The edge line B of the notch 1401 can be used to simulate the edge line of the inspection post 1400 when the inspection post 1400 is close to the edge of the notch 1401, that is, as the calibration line of the edge of the inspection post 1400.

[0096] Figure 4 The state can simulate the state where the inspection column 1400 is tightly attached to the edge of the notch 1401, that is, the state where the notch gap width is 0.

[0097] See Figure 5 As shown, in Figure 4 Based on this, the notch camera 20 is moved laterally to the left along the direction of the indicator rod, thereby simulating a rightward movement of the indicator rod. This causes the edge line B of the notch 1401 (i.e., the groove edge) on the indicator rod to move to the right in the notch gap image captured by the notch camera 20. At this time, the edge line B of the notch 1401 moves away from the calibration line C of the inspection post 1400. Furthermore, since the inspection post is fixed relative to the notch camera, the position of the calibration line C within the notch camera's shooting range A also remains unchanged. Figure 5 As shown, it is possible to simulate the relative displacement between the notch edge on the indicator rod 14 and the column edge of the inspection post, and thus simulate the change in the notch gap width (the distance between the column edge calibration line of the inspection post 1400 and the notch edge line).

[0098] In this invention, since there is no relative displacement between the inspection post and the notch camera, and their relative positions are fixed, while there is a relative displacement between the edge of the notch and the camera, the movement of the notch on the indicator rod can be replaced by moving the notch camera. That is, the relative displacement between the notch camera and the edge of the notch on the indicator rod can be replaced by the relative displacement between the edge of the notch on the indicator rod and the edge of the inspection post.

[0099] For this reason, see Figure 4 , Figure 5 As shown, this utility model uses a notch camera to pre-calibrate a fixed position (i.e., the edge line B of the notch 1401 when the notch gap width is 0) to simulate the position of the calibration indicator rod (i.e., the simulated calibration line C as the edge of the inspection post 1400). Then, the notch camera is moved so that in the notch gap image captured by the notch camera 20, the edge of the notch (i.e., the edge line B of the notch 1401) moves relative to this fixed calibration position (simulated calibration line C) to simulate the relative displacement between the edge of the notch and the edge of the inspection post, thereby indirectly simulating notch gaps of different widths t.

[0100] The following explains the working principle of this utility model for moving the notch camera and the calculation principle for the monitoring accuracy of the notch camera.

[0101] The drive and power supply cable of servo motor 1 is connected to the drive module that comes with servo motor 1. The drive module controls the rotation of servo motor 1, which drives coupling 3 to rotate. Coupling 3 drives ball screw 8 to rotate. Ball screw 8 drives screw nut 5 to move on the screw, which in turn drives slide 4, mounting bracket 15 and notched camera 20 to move on linear guide rail.

[0102] The servo motor drive module can obtain the rotation angle α of the servo motor through the servo motor. Given that the lead screw is d (the lead screw refers to the distance the nut shaft moves per unit pitch on the lead screw shaft, which is a pre-known parameter), the movement distance L of the notch camera can be obtained through the formula for calculating the movement distance of the notch camera.

[0103] The formula for calculating the movement distance of the notch camera is as follows:

[0104] L=d·(α / 360), formula (1);

[0105] In formula (1), d is the lead of the lead screw;

[0106] α is the angle of rotation of the servo motor.

[0107] Therefore, for this utility model, based on the above method, the moving distance L of the gap camera 20 can be calculated, and then the width value t of the gap obtained by the original gap monitoring system of the switch machine based on the gap gap image captured by the gap camera can be obtained by using the gap camera monitoring accuracy calculation formula.

[0108] The formula for calculating the monitoring accuracy ε of the notch camera is as follows:

[0109] ε=Lt,Formula (2);

[0110] L represents the distance the notched camera moves;

[0111] t represents the width value of the gap obtained by the original gap monitoring system of the switch machine based on the gap gap image captured by the gap camera (i.e., the gap gap width value obtained from the gap gap image by using the existing measurement method of the original switch machine gap monitoring system).

[0112] Example 2

[0113] In this utility model, an auxiliary detection device for monitoring the accuracy of a notch camera is provided, which also includes an industrial control computer;

[0114] An industrial control computer is connected to the drive module that is paired with the servo motor 1. It is used to collect the rotation angle α of the servo motor, and then calculate the monitoring accuracy ε of the notch camera according to the calculation formula of the moving distance of the notch camera and the calculation formula of the monitoring accuracy of the notch camera.

[0115] Example 3

[0116] In this utility model, an auxiliary detection device for monitoring the accuracy of a notch camera is provided, which also includes an industrial control computer (specifically, an industrial control touch screen);

[0117] An industrial control computer is connected (wirelessly) to two angle encoders 302 on the two device units to collect the rotation angle α of the servo motor and display it on the connected display screen. Then, the operator can calculate the monitoring accuracy ε of the notch camera by combining the above calculation formulas (1) and (2).

[0118] Based on the auxiliary detection device for notched camera monitoring accuracy provided by the present invention, the present invention also provides a method for detecting the monitoring accuracy of a notched camera based on the auxiliary detection device for notched camera monitoring accuracy, which includes the following steps:

[0119] Step S1: In the notch gap image captured by the notch camera 20, the edge line B of the notch 1401 (i.e. the groove edge) is simulated and calibrated as the simulated calibration line C (a virtual line) of the edge of the inspection post 1400 when the inspection post 1400 is close to the edge of the notch 1401.

[0120] Step S2: The servo motor 1 controls the gap camera 20 to move laterally to the left, simulating the state where the indicator rod moves to the right. In the gap gap image captured by the gap camera 20, the edge line B of the gap 1401 on the indicator rod moves to the right (at this time, since the inspection post is fixed relative to the gap camera, the position of the calibration line C in the shooting range A of the gap camera is also unchanged). The edge line B of the gap 1401 moves away from the column edge calibration line C of the inspection post 1400 (i.e., relative movement occurs). Then, based on the gap gap image, the width value t of the gap gap is obtained (the specific method of obtaining it is the method used by the existing switch machine gap monitoring system, which will not be described in detail here).

[0121] Step S3: When the notched camera 20 moves, obtain the rotation angle α of the servo motor 1;

[0122] Step S4: Based on the width value t of the notch gap obtained in step S2 and the rotation angle α of the servo motor 1 obtained in step S3, as well as the preset calculation formulas for the moving distance of the notch camera and the monitoring accuracy of the notch camera, the monitoring accuracy ε of the notch camera 20 is obtained.

[0123] In step S4, specifically, the formula for calculating the moving distance of the notch camera is as follows:

[0124] L=d·(α / 360), formula (1);

[0125] In formula (1), d is the lead of the lead screw;

[0126] α is the angle of rotation of the servo motor.

[0127] In step S4, specifically, the calculation formula for the monitoring accuracy ε of the notch camera is as follows:

[0128] ε=Lt,Formula (2);

[0129] L represents the distance the notched camera moves;

[0130] t represents the width value of the gap obtained by the original gap monitoring system of the switch machine based on the gap gap image captured by the gap camera (i.e., the gap gap width value obtained from the gap gap image by using the existing measurement method of the original switch machine gap monitoring system).

[0131] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary detection device for improving the accuracy of notch camera monitoring, characterized in that, Includes a horizontally distributed device base (10); The top rear end of the device base (10) is provided with a horizontally distributed slide base (9); A servo motor (1) is provided at the top left end of the slide base (9); The output shaft on the right side of the servo motor (1) is connected to the left end of the ball screw (8) via a coupling (3); A screw nut (5) is provided on the ball screw (8); A horizontally distributed slide block (4) is provided on the lead screw nut (5); A mounting base (15) is fixedly provided at the front end of the slide (4); The front end of the mounting base (15) protrudes beyond the front end of the slide (4); The front end of the mounting base (15) is provided with a notched camera (20) that protrudes forward; The top front end of the device base (10) is provided with horizontally distributed indicator rods (14); The top of the indicator rod (14) is provided with a notch (1401); The lens (2001) of the notch camera (20) is positioned downwards and above the notch (1401).

2. The auxiliary detection device for monitoring the accuracy of a notch camera as described in claim 1, characterized in that, The top front and rear sides of the slide base (9) are respectively provided with a second side plate (7) distributed horizontally. The two second side panels (7) are arranged parallel to each other; On the opposite side of the two second side plates (7), a set of horizontally distributed linear guide rails (6) are respectively provided; The slide block (4) is connected to the linear guide rail (6) through a sliding fit.

3. The auxiliary detection device for monitoring the accuracy of a notch camera as described in claim 2, characterized in that, The bottom of the slide block (4) is provided with a slider corresponding to each linear guide rail (6); The slider is connected to the linear guide (6) through a sliding fit.

4. The auxiliary detection device for monitoring the accuracy of a notch camera as described in claim 1, characterized in that, The top front end of the device base (10) is provided with an inner side plate (13) and an outer side plate (12) that are horizontally distributed; The outer card plate (12) is located directly in front of the inner card plate (13) and is set parallel to the inner card plate (13); An indicator rod (14) is provided on the front side of the inner plate (13).

5. The auxiliary detection device for monitoring the accuracy of a notch camera as described in claim 4, characterized in that, The front side of the inner plate (13) fits tightly against the rear side of the indicator rod (14); The front side of the indicator rod (14) is connected to the outer card plate (12) by the fifth fastener (19).

6. The auxiliary detection device for monitoring the accuracy of a notch camera as described in claim 4, characterized in that, The outer plate (12) has multiple longitudinally distributed threaded holes at the position corresponding to the indicator rod (14); The fifth fastener (19) passes longitudinally through the threaded hole on the outer card plate (12) and is threadedly connected to the threaded hole; The rear end of the fifth fastener (19) abuts against the front side of the indicator rod (14).

7. The auxiliary detection device for monitoring the accuracy of a notch camera as described in claim 1, characterized in that, A first side plate (2) is vertically installed at the top left end of the slide base (9); A through hole is provided horizontally through the first side plate (2); The right side wall of the main housing of the servo motor (1) is located on the left side wall of the first side plate (2); The output shaft on the right side of the servo motor (1) is connected to the coupling (3) after passing through the through hole of the first side plate laterally.

8. The auxiliary detection device for monitoring the accuracy of a notch camera as described in any one of claims 1 to 7, characterized in that, The top left and right ends of the slide base (9) are respectively provided with a first lead screw support plate (22) and a second lead screw support plate (23); The first lead screw support plate (22) and the second lead screw support plate (23) are arranged symmetrically on the left and right sides; The first lead screw support plate (22) and the second lead screw support plate (23) are respectively provided with a first bearing mounting hole and a second bearing mounting hole at positions corresponding to the ball screw (8); The first bearing and the second bearing are respectively installed in the first bearing mounting hole and the second bearing mounting hole; The left and right ends of the ball screw (8) are connected to the inner rings of the first bearing and the second bearing, respectively.

Images