Laser track contact network parameter measuring device

Abstract

The utility model discloses a laser track contact net parameter measuring device and a control method, and the measuring device comprises a prism which is provided with a through hole; the laser transceiver is provided with a laser emitting head, the laser emitting head is used for emitting laser, and the laser irradiates the to-be-measured object through the through hole; a camera; wherein the picture of the object to be measured is refracted into the camera by the prism through the reflection path. According to the utility model, the prism is provided with the through hole, so that the laser is prevented from diffuse reflection due to non-uniform medium in the prism when the laser irradiates a measuring point, and the deviation of a final measuring result is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser measurement technical field, concretely relates to a laser track catenary parameter measuring device. BACKGROUND

[0002] In the operation and maintenance of electrified railway, the state of catenary is directly related to the safety and efficiency of railway transportation. The traditional catenary detection method mainly depends on artificial visual inspection and simple measuring tools, which not only consumes time and effort, but also has limited precision, and is difficult to meet the high standard requirements of modern high-speed railway on safety and efficiency. With the development of science and technology, laser technology is widely used in catenary parameter measurement due to its high precision, high efficiency and non-contact characteristics. Although the existing laser concentric transmitting and receiving prism structure and track catenary parameter measuring device improves the efficiency and precision of measurement to some extent, there are still some limitations. These devices often require complex operation procedures, and the stability and reliability in complex environments need to be improved. Therefore, it is necessary to provide a reliable laser track catenary parameter measuring device.

[0003] However, one of the deficiencies in the related prior art is that when laser passes through the prism, it needs to pass through the prism body, and the prism itself is not uniform in medium, which causes diffuse reflection of laser and affects the measurement result. UTILITARY MODEL

[0004] The utility model aims at solving at least one of the above technical problems.

[0005] The first purpose of the utility model is to provide a laser track catenary parameter measuring device.

[0006] To achieve the first purpose of the utility model, the utility model provides a laser track catenary parameter measuring device, which comprises: a prism, the prism is provided with a through hole; a laser transceiver, the laser transceiver is provided with a laser emitting head, the laser emitting head is used for emitting laser, and the laser is irradiated to the measured object through the through hole; a camera; wherein the picture of the measured object is refracted into the camera by the prism through the reflection path.

[0007] Through the setting of the through hole, the problem of diffuse reflection caused by uneven medium when laser passes through the prism in the prior art is effectively solved, thereby greatly improving the accuracy and reliability of the measurement result. This improvement enables the device to maintain high-precision measurement performance in complex environments. Secondly, after the camera and the laser transceiver are calibrated before use, the operation is simple when used, which reduces the requirement for the skill of the operator, enables the on-site staff to perform measurement work more quickly and conveniently. This not only improves the work efficiency, but also reduces human error, and further improves the accuracy of the measurement data.

[0008] In the above technical solution, the prism is provided with a glass surface, and the through hole passes through the glass surface.

[0009] The glass surface of the prism clearly introduces the measured object into the camera picture through the principle of refraction, significantly improving the clarity and detail performance of the image. This high-precision imaging effect helps to more accurately analyze and measure various parameters of the track catenary, ensuring the reliability and accuracy of the data. The refractive properties of the glass surface enable the device to maintain high efficiency in complex environments. Whether in strong light, weak light or night conditions, the glass surface can effectively guide the light, ensuring that the measurement process is not disturbed by external light, improving the environmental adaptability of the equipment. Since the glass surface can automatically refract the measured object into the camera picture, the operator only needs to simply align the target to complete the measurement. This greatly simplifies the operation process, reduces the skill requirements for the operator, improves the work efficiency, and also reduces the possibility of human error.

[0010] In any of the above technical solutions, the reflection path includes: an incident light path leading from the measured object to the prism; an imaging light path leading from the prism to the camera, and the imaging light path is connected with the incident light path through a refractive light path.

[0011] Through the reflection path, the picture within a certain area of the measured object can be refracted into the camera through the prism, and the measured object can be directly observed by observing the picture in the camera, so that the device can more accurately align the measured object, improving the accuracy and reliability of the measurement. The picture within a certain area of the measured object first enters the prism through the incident light path, then turns through the refractive light path inside the prism, and finally enters the camera through the imaging light path, so that the picture within a certain area of the measured object can be clearly and accurately transmitted into the camera.

[0012] In any of the above technical solutions, the through hole is in the path of the incident light path. The diameter of the through hole is not greater than one-fiftieth of the width of the path of the incident light path.

[0013] The through hole is in the incident light path, and the diameter of the through hole is not greater than one-fiftieth of the width of the path of the incident light path, which ensures that the laser can accurately pass through the prism and avoid measurement errors caused by beam scattering or refraction. This design improves the accuracy and reliability of the measurement results, making the detection of catenary parameters more accurate. If the diameter of the through hole is too large, the picture within a certain area of the measured object will be missing too much, and most of it cannot be transmitted into the camera. The diameter of the through hole is set small enough, and the diameter of the laser is not greater than the provided diameter, which can ensure that the laser passes through the through hole smoothly without being disturbed by the prism, and will not affect the picture within a certain area of the measured object to be clearly transmitted into the camera picture through refraction, making the measurement result more clear and intuitive.

[0014] In any of the above technical solutions, the laser transceiver further comprises an optical path receiving module and a circuit processing unit, and the circuit processing unit is connected with the optical path receiving module and the laser emitting head.

[0015] The integration of the circuit processing unit enables the laser transceiver to monitor and adjust the optical signal in real time, ensuring the accuracy of the data during the measurement process. By precisely controlling the synchronization of the laser emitting head and the receiving module, measurement errors are reduced, and the overall system measurement accuracy is improved. The close connection of the circuit processing unit with the optical path receiving module and the laser emitting head ensures the stability of the system in complex environments. This design reduces the impact of external interference on measurement results, allowing the device to operate stably under various conditions and provide reliable data support. The circuit processing unit can quickly process signals from the optical path receiving module for real-time analysis and calculation. This efficient data processing capability enables the measurement results to be generated and displayed quickly, allowing operators to obtain information in real time and improving work efficiency and decision-making speed. The integrated circuit design simplifies the operation process of the laser transceiver, and users only need to make simple settings to complete complex measurement tasks. This reduces the requirement for operator skills and the likelihood of human error, improving the ease of use and convenience of the device.

[0016] In any of the above technical solutions, the camera comprises a lens, and the lens is provided with a lens center point.

[0017] In the lens picture, the lens center point is aligned with the measured object, which ensures that the measurement device is aligned with the desired measurement object. This method significantly improves the accuracy and reliability of the measurement results, reduces errors, and makes the measurement results more accurate. The alignment of the lens center point simplifies the operation process and reduces the requirement for operator skills. Users only need to make simple adjustments to complete complex measurement tasks, reducing the likelihood of human error and improving the ease of use and convenience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will describe the drawings needed to be used in the embodiment or prior art description. Obviously, the technical solutions described in the description in conjunction with the drawings are only some embodiments of the present application, and for those skilled in the art, other embodiments and drawings can be obtained without creative labor on the basis of the embodiments shown in the drawings.

[0019] Figure 1 is a schematic diagram of a laser track catenary parameter measurement device provided by an embodiment of the present application.

[0020] Figure 2 is another schematic diagram of a laser track catenary parameter measurement device provided by an embodiment of the present application.

[0021] Figure 3 is another schematic view of the laser track catenary parameter measuring device provided by the embodiment of the present application.

[0022] In the figure: 100-prism, 110-through hole, 120-glass surface, 200-laser transceiver, 210-laser emitting head, 211-laser, 211a-, 300-camera, 310-lens, 311-lens center point, 400-object to be measured, 510-incidence light path, 520-refraction light path, 530-imaging light path. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0024] As shown in Figure 1 , Figure 2 and Figure 3 , the embodiment of the present application provides a laser track catenary parameter measuring device, which comprises: a prism 100, the prism is provided with a through hole 110; a laser transceiver 200, the laser transceiver 200 is provided with a laser emitting head 210, the laser emitting head 210 is used for emitting a laser 211, the laser 211 is irradiated to an object to be measured 400 through the through hole 110; a camera 300; wherein the picture of the object to be measured 400 is refracted into the camera 300 through a reflection path by the prism 100; the prism 100 is provided with a reflection surface 120, and the through hole 110 passes through the reflection surface 120; the reflection path comprises: an incidence light path 510 and an imaging light path 530, the incidence light path 510 leads to the prism 100 from the object to be measured 400, the imaging light path 530 leads to the camera 300 from the prism 100, and the imaging light path 530 is connected with the incidence light path 510 through a refraction light path 520; the through hole 110 is in the path of the incidence light path 510; the diameter of the through hole 110 is not greater than one-fiftieth of the width of the path of the incidence light path 510; the laser transceiver 200 further comprises a light path receiving module and a circuit processing unit, and the circuit processing unit is connected with the light path receiving module and the laser emitting head 210; the camera 300 comprises a lens 310, and the lens 310 is provided with a lens center region 311.

[0025] In the embodiment, the through hole 110 is arranged on the prism 100. Since the through hole 110 penetrates the prism 100, the picture of the object 400 in the range covered by the through hole 110 cannot be refracted by the prism 100 into the camera 300. Therefore, the diameter of the through hole 110 cannot be greater than one-fiftieth of the incident light path 510, which can avoid that the diameter of the through hole 110 is too large to affect the picture of the object 400 in the camera 300, thereby causing inaccurate measurement. In addition, the diameter of the laser 211 is not greater than the diameter of the through hole 110, which ensures that the laser 211 can smoothly pass through the through hole 110 without passing through the inside of the prism 100, thereby avoiding the problem that the uneven medium in the inside of the prism 100 causes scattering of the laser. In the prior art, after the laser 211 irradiates the measurement point, the picture in a certain range around the measurement point of the object 400 is reflected into the picture of the camera 300 through the prism 100, so that whether the laser 211 irradiates the measurement point can be directly observed through the picture in the camera 300. In the utility model, since the through hole 110 is arranged on the prism 100, the laser 211 cannot be reflected into the picture of the camera 300 through the prism 100, so that whether the laser 211 irradiates the measurement point cannot be directly observed through the picture in the camera 300. Therefore, the positions of the laser transceiver 200 and the camera 300 need to be calibrated in advance before use, so as to ensure that the lens center area 311 on the lens 310 is consistent with the laser mark point 211a. In the embodiment, the laser transceiver 200 is below the prism 100, the laser emitting head 210 is aligned with the through hole 110, and the laser 211 can directly pass through the through hole 110 to irradiate the measurement point on the object 400. Since the diameter of the laser 211 and the through hole 110 is very small, most of the picture of the measurement area can be refracted into the picture of the camera 300 through the two reflecting surfaces 120 of the prism 100. Before measurement, the laser emitting head 210 emits the laser 211, at this time, the laser 211 irradiates the object 400, and a mark is made on the irradiation point, which is recorded as the laser mark point 211a. The laser mark point 211a is a mark larger than the diameter of the through hole 110. Since the diameter of the laser 211 and the through hole 110 is very small, the laser mark point 211a can be refracted into the picture of the camera 300 through the prism 100. The picture of the camera 300 is observed, and the position of the camera 300 is moved until the laser mark point 211a is consistent with the lens center area 311 on the lens 310. After the positional relationship between the laser transceiver 200 and the camera 300 is fixed, the laser transceiver 200 and the camera 300 can be used for track contact network parameter measurement. During measurement, the picture of the camera 300 is observed, and the whole measurement device is moved until the measurement point of the object 400 is consistent with the lens center area 311. At this time, since the positions of the laser transceiver 200 and the camera 300 have been calibrated, the laser 211 can directly irradiate the object in the lens center area 311 in the picture of the camera 300, that is, directly irradiate the measurement point.The laser 211 is reflected back after irradiating to the measuring point and is received by the light path receiving module, the light path receiving module generates corresponding data after receiving the reflected laser 211 and sends to the circuit processing unit, the circuit processing unit processes the laser data and generates corresponding measurement results.

[0026] In the utility model, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0028] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be limited by the range defined in the claims.

Claims

1. A laser track catenary parameter measuring device, characterized in that, The application relates to a laser detection device. The laser detection device comprises: a prism (100) provided with a through hole (110); a laser transceiver (200) provided with a laser emission head (210) for emitting laser (211), the laser (211) irradiating the object to be detected (400) through the through hole (110); a camera (300); 2. The laser track catenary parameter measuring device according to claim 1, characterized in that, The image of the object to be detected (400) is refracted into the camera (300) by the prism (100) through a reflection path.

3. The laser track catenary parameter measuring device according to claim 1, characterized in that, The prism (100) is provided with a reflection surface (120), and the through hole (110) passes through the reflection surface (120). The reflection path comprises: an incident light path (510) leading from the object to be detected (400) to the prism (100); 4. The laser track catenary parameter measuring device according to claim 3, characterized in that, an imaging light path (530) leading from the prism (100) to the camera (300), and a refracted light path (520) connecting between the imaging light path (530) and the incident light path (510).

5. The laser track catenary parameter measuring device according to claim 4, characterized in that, The through hole (110) is in the path of the incident light path (510).

6. The laser track catenary parameter measuring device according to claim 1, characterized in that, The diameter of the through hole (110) is not greater than one-fiftieth of the width of the path of the incident light path (510).

7. The laser track catenary parameter measuring device according to claim 1, characterized in that, The laser transceiver (200) further comprises a light path receiving module and a circuit processing unit, and the circuit processing unit is connected with the light path receiving module and the laser emission head (210). The camera (300) comprises a lens (310) provided with a lens center region (311).

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