Contact network parameter measuring instrument

Abstract

The utility model belongs to the technical field of railway catenary parameter measurement, and discloses a catenary parameter measuring instrument. The measuring instrument comprises a data acquisition module, an electrical control module, a mobile terminal, a wireless communication module, a power supply module and a remote server, the data acquisition module comprises a double-shaft tilt angle sensor, a laser displacement sensor, a linear displacement sensor, an electric turntable and an industrial digital camera; the laser displacement sensor and the industrial digital camera are installed on the electric rotary table, the measuring angles of the laser displacement sensor and the industrial digital camera are adjusted through the electric rotary table, the laser displacement sensor is used for obtaining the distance between the measuring instrument and each wire of the overhead line system, and the industrial digital camera is used for collecting overhead line system images; the double-shaft tilt angle sensor is used for obtaining the included angle between the rail top plane and the horizontal plane, and the linear displacement sensor is used for obtaining the distance between the measuring instrument and the rails on the two sides. The measuring instrument solves the problems that the measuring process is tedious, measurement is not accurate enough, and data management is low in efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway contact network parameter measurement, in particular to a contact network parameter measuring instrument. Background Art

[0002] The catenary, a transmission line erected above a railway line, is an integral component of the electrified railway system. Its core function is to transmit electricity provided by the traction substation directly to the electric locomotives via pantographs, thereby powering the locomotives. Therefore, the operational quality of the catenary is directly linked to the transportation efficiency and reliability of electrified railways. During EMU operation, the dynamic interaction between the pantograph and the catenary can cause contact wire wear and variations in parameters such as pullout. These variations gradually accumulate and reduce the stability of the catenary. Therefore, accurate and efficient inspection and condition monitoring of the catenary to ensure optimal operation are crucial for improving the transportation capacity of electrified railways and ensuring train safety.

[0003] Because catenary wires are numerous and often overlap, the laser displacement sensor's angle must be adjusted to accurately measure the distance between each wire and the measuring instrument. Existing measurement equipment often relies on manual angle adjustment, a tedious and time-consuming process that can lead to measurement errors. Furthermore, existing measurement equipment has shortcomings in data management, making the storage and subsequent processing of measurement data complex and inefficient. These shortcomings limit the convenience and accuracy of catenary measurement equipment in practical applications. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the technical problem that the present invention intends to solve is to provide a contact network parameter measuring instrument, which effectively solves technical problems such as complicated measurement process, inaccurate measurement, and inefficient data management.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A contact network parameter measuring instrument comprises a data acquisition module, an electrical control module, a mobile terminal, a wireless communication module, a power supply module and a remote server; the data acquisition module comprises a dual-axis inclination sensor, a laser displacement sensor, a linear displacement sensor, an electric turntable and an industrial digital camera; the laser displacement sensor and the industrial digital camera are both mounted on the electric turntable, and the measuring angles of the laser displacement sensor and the industrial digital camera are adjusted by the electric turntable; the laser displacement sensor is used to obtain the distance between the measuring instrument and each conductor of the contact network, and the industrial digital camera is used to capture images of the contact network; the dual-axis inclination sensor is used to obtain the angle between the top plane of the rail and the horizontal plane, and the linear displacement sensor is used to obtain the distance between the measuring instrument and the rails on both sides.

[0007] Furthermore, the electrical control module includes a main control board and an industrial computer, and the wireless communication module includes a WIFI module, a GPS module and a mobile communication module; the GPS module, the dual-axis inclination sensor, the laser displacement sensor, the linear displacement sensor and the electric turntable are all connected to the main control board, the industrial digital camera is connected to the industrial computer, the main control board is connected to the remote server through the mobile communication module, and is connected to the industrial computer through the serial port to USB module, and the industrial computer is connected to the mobile terminal through the WIFI module.

[0008] Furthermore, the mobile terminal is a microcomputer, a tablet computer or a mobile phone.

[0009] Furthermore, the mobile communication module is a 4G or 5G module.

[0010] Furthermore, the electric turntable is provided with an encoder and a limit switch.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. An industrial digital camera and laser displacement sensor are mounted on a motorized turntable, which automatically adjusts the laser displacement sensor's measurement angle. Compared to existing catenary parameter measurement devices, this reduces measurement errors caused by manual adjustment of the laser displacement sensor. Image data captured by the industrial digital camera is transmitted to a mobile terminal in real time, and the turntable's angle adjustment is assisted by the catenary image. The turntable has two modes: rapid rotation and fine-tuning, enabling precise angle adjustment.

[0013] 2. The data acquisition module can collect the angle between the top plane of the rail and the horizontal plane, the distance between the measuring instrument and each conductor of the contact network, the distance between the measuring instrument and the rails on both sides, etc., making the measured contact network parameters more comprehensive.

[0014] 3. The data acquisition module collects data and transmits it to a mobile terminal, facilitating historical data viewing and data export. This addresses the data management deficiencies of existing catenary parameter measurement devices. The mobile terminal also analyzes and processes this data and calculates catenary parameters. The mobile terminal is equipped with measuring instrument control software, which directly controls the measuring instrument for data measurement, simplifying measurement operations. The convenient and user-friendly software also improves user-friendliness. A remote server stores information such as device location, operating hours, and fault codes, facilitating remote management. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model. DETAILED DESCRIPTION

[0016] Specific embodiments are given below in conjunction with the accompanying drawings. The specific embodiments are only used to introduce the technical solutions of the present utility model in detail and are not intended to limit the scope of protection of the present application.

[0017] like Figure 1 As shown, the utility model provides a contact network parameter measuring instrument, including a data acquisition module, an electrical control module, a mobile terminal, a wireless communication module, a power supply module and a remote server; wherein the electrical control module communicates with the mobile terminal in a two-way manner through the wireless communication module, and the data acquisition module communicates with the electrical control module in a two-way manner. The data acquisition module can collect the angle between the top plane of the rail and the horizontal plane, the distance between the measuring instrument and each conductor of the contact network, the distance between the measuring instrument and the rails on both sides, etc.; the electrical control module communicates with the remote server in a one-way manner, and transmits information such as position, running time, fault code, etc. to the remote server for storage ; The power module supplies power to the entire measuring instrument; the mobile terminal sends instructions to the electrical control module, the data acquisition module receives the instructions from the electrical control module to collect data, and the electrical control module transmits the collected data to the mobile terminal for real-time display, and performs analysis and processing to calculate the contact network parameters, including guide height, pull-out value, gauge, superelevation, branch center deviation value, locator slope, locator height difference, red line elevation, side limit, non-support elevation, non-support spacing, working support guide height, working support pull-out value, height difference at 500 mm, load-bearing cable height difference, free measurement horizontal distance, free measurement vertical distance, pillar span, and pillar verticality.

[0018] The electrical control module includes a main control board and an industrial computer; the data acquisition module includes a dual-axis inclination sensor, a laser displacement sensor, a linear displacement sensor, an electric turntable and an industrial digital camera; the laser displacement sensor and the industrial digital camera are both installed on the electric turntable, and the measuring angles of the laser displacement sensor and the industrial digital camera are adjusted by the electric turntable; the wireless communication module includes a WIFI module, a GPS module and a mobile communication module; the GPS module, the dual-axis inclination sensor, the laser displacement sensor, the linear displacement sensor and the electric turntable are all connected to the main control board, the industrial digital camera is connected to the industrial computer, the main control board is connected to the remote server through the mobile communication module, and is connected to the industrial computer through a serial port to USB module, and the industrial computer is connected to the mobile terminal through the WIFI module. The GPS module is used to obtain the location information of the measuring instrument, the dual-axis inclination sensor is used to obtain the angle between the top plane of the rail and the horizontal plane, the laser displacement sensor is used to obtain the distance between the measuring instrument and each conductor of the contact network, and the linear displacement sensor is used to obtain the distance between the measuring instrument and the rails on both sides; since there is overlap between the various conductors of the contact network, in order to enable the laser displacement sensor to accurately obtain the distance between the measuring instrument and each conductor, an industrial digital camera is used to capture the contact network image to assist in adjusting the rotation angle of the electric turntable so that the laser emitted by the laser displacement sensor is located on the conductor being measured.

[0019] The power supply module includes a power supply battery and a power conversion circuit, which provides a stable operating voltage for the electrical control module, the data acquisition module and the wireless communication module.

[0020] The mobile terminal includes but is not limited to a microcomputer, a tablet computer, a mobile phone, etc. The mobile terminal sends instructions to the industrial computer through a wireless communication module. After receiving the instructions, the industrial computer directly controls the industrial digital camera to capture images and forwards the instructions to the main control board. The main control board controls the rotation of the electric turntable and the data collected by each sensor; the mobile terminal simultaneously receives and displays the data transmitted by the industrial computer, including images collected by the industrial digital camera and data collected by each sensor.

[0021] The laser displacement sensor has a built-in electric auxiliary heating function, which can ensure normal operation even in low temperature environments.

[0022] The electric turntable is used to realize the rotation of the laser displacement sensor and the industrial digital camera, and has its own encoder and limit switch. The encoder is used to obtain the angle between the current position and the zero position, and the limit switch is used to limit the rotation angle of the electric turntable.

[0023] The electrical control module features a power-on self-test function, checking the status of each electrical component and displaying it in real time on a mobile terminal. If the device is not operating normally, the mobile terminal alerts the operator to the abnormality and requires troubleshooting. The module measures the current ambient temperature and automatically activates the electric auxiliary heat at low temperatures to ensure the meter operates properly in these conditions. The main control board utilizes a high-performance STM32 series microcontroller as its core processing unit, receiving and interpreting commands transmitted by the industrial computer and controlling the rotation of the electric turntable and data acquisition from the data acquisition module. The board also receives data from the data acquisition module and forwards it to the industrial computer.

[0024] The mobile communication module is a 4G module, a 5G module, etc.

[0025] The working principle and workflow of this utility model are:

[0026] When measuring, the measuring instrument is placed on the rails. After power is turned on, the electrical control module will automatically perform a power-on self-test to check whether all electrical components (such as the main control board, industrial computer, sensors, etc.) are in normal working condition. If any abnormality is detected, feedback will be provided to the operator through the mobile terminal to remind them to troubleshoot the problem. After the self-test is completed, the industrial computer begins to continuously control the industrial digital camera to collect contact network images and transmit them to the mobile terminal for real-time display; when measuring contact network parameters, the operator first controls the electric turntable through the mobile terminal to rotate, and refers to the image data collected by the industrial digital camera. When the electric turntable rotates to the position where the laser displacement sensor needs to measure, it stops rotating. The operator operates the contact network measuring instrument control software on the mobile terminal to start data measurement. The mobile terminal sends data collection instructions to the industrial computer through the WIFI module. After receiving the instructions, the industrial computer parses and forwards them to the main control board. The main control board controls each sensor to collect data. The data collected by each sensor is transmitted to the main control board. The main control board packages the data and sends it to the industrial computer. The industrial computer packages the data and sends it to the mobile terminal. The mobile terminal stores, analyzes and processes these data to calculate the contact network parameters.

[0027] Any matters not described in this utility model are applicable to the prior art.

Claims

1. A contact network parameter measuring instrument, characterized in that: The measuring instrument includes a data acquisition module, an electrical control module, a mobile terminal, a wireless communication module, a power supply module and a remote server; the data acquisition module includes a dual-axis inclination sensor, a laser displacement sensor, a linear displacement sensor, an electric turntable and an industrial digital camera; the laser displacement sensor and the industrial digital camera are both installed on the electric turntable, and the measuring angles of the laser displacement sensor and the industrial digital camera are adjusted by the electric turntable. The laser displacement sensor is used to obtain the distance between the measuring instrument and each conductor of the contact network, and the industrial digital camera is used to collect images of the contact network; the dual-axis inclination sensor is used to obtain the angle between the top plane of the rail and the horizontal plane, and the linear displacement sensor is used to obtain the distance between the measuring instrument and the rails on both sides.

2. The contact network parameter measuring instrument according to claim 1, characterized in that: The electrical control module includes a main control board and an industrial computer, and the wireless communication module includes a WIFI module, a GPS module and a mobile communication module; the GPS module, a dual-axis inclination sensor, a laser displacement sensor, a linear displacement sensor and an electric turntable are all connected to the main control board, the industrial digital camera is connected to the industrial computer, the main control board is connected to the remote server through the mobile communication module, and is connected to the industrial computer through a serial port to USB module, and the industrial computer is connected to the mobile terminal through the WIFI module.

3. The contact network parameter measuring instrument according to claim 1 or 2, characterized in that: The mobile terminal is a microcomputer, a tablet computer or a mobile phone.

4. The contact network parameter measuring instrument according to claim 2, characterized in that: The mobile communication module is a 4G or 5G module.

5. The contact network parameter measuring instrument according to claim 1 or 4, characterized in that: The electric turntable is provided with an encoder and a limit switch.

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