A multi-channel light intensity detection device for locomotive instruments

Abstract

The utility model discloses a locomotive instrument multichannel light intensity detection device to overcome the insufficient of the prior art locomotive instrument light brightness detection without reference standard to lead to the inability to accurately judge whether the instrument light is qualified. Including adjustment module and detection module. Adjustment module contains voltage current display module, switching power supply, voltage adjustment knob, current adjustment knob and instrument terminal clamp, can accurate control and show the power supply parameter. Detection module is a plurality of light intensity detector, and is installed near the instrument terminal clamp. The device obtains specific light intensity value through the light intensity detector, provides quantitative basis for judging whether the instrument light is qualified, overcomes the insufficient of the prior art that cannot accurately judge due to no reference standard, and improves the detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of railway locomotive testing technology, specifically to a multi-channel illuminance detection device for locomotive instruments. Background Technology

[0002] In the field of railway locomotive operation and maintenance technology, the display parameters of locomotive instrument lights have a crucial impact on train operation safety and maintenance quality. However, there are significant technical deficiencies in the current process of detecting the brightness of locomotive instrument lights. From operational practice, railway locomotive crew members are prone to visual fatigue and difficulties in confirming instrument information due to differences in brightness among some locomotive instrument lights, as well as the influence of ambient light changes such as day-night cycles and tunnel conditions. These issues pose potential risks to train operation safety. During maintenance work, differences in the brightness and color rendering of instrument lights on the same locomotive prevent it from meeting the technical requirements for civilized maintenance, affecting the normal handover process.

[0003] The core technical problem mentioned above lies in the lack of clear technical standards and effective testing methods for locomotive instrument brightness testing: Current standards lack clear technical specifications and specific numerical indicators for instrument brightness verification, making it difficult to accurately define customer technical needs and resulting in a lack of executable technical basis for operational standards. During the periodic maintenance and replacement of locomotive instrument light strips and panels, the lack of specific numerical standards leads to higher maintenance costs and increased labor intensity for workers. Furthermore, there are risks of instrument malfunctions due to reversed polarity of the lighting lamps and safety hazards during replacement. The inability to provide manufacturers with clear technical standards and numerical ranges for instrument brightness makes it difficult to eliminate the root cause quality problems arising from technical differences between different batches of newly manufactured products. During routine maintenance and calibration, the lack of specific numerical standards and reliance on visual observation for light display compliance makes inconsistencies in calibration results due to human factors an unavoidable technical issue.

[0004] Based on the aforementioned technical issues, there is a clear technical necessity to develop a multi-channel illuminance detection device for locomotive instruments. Utility Model Content

[0005] The purpose of this invention is to provide a multi-channel illuminance detection device for locomotive instruments, so as to overcome the shortcomings of the existing technology that does not have a reference standard for detecting the brightness of locomotive instrument lights, which makes it impossible to accurately determine whether the instrument lights are qualified.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-channel illuminance detection device for locomotive instruments, comprising: The adjustment module includes a voltage and current display module and a switching power supply. The output terminal of the switching power supply is connected to a voltage adjustment knob and a current adjustment knob. The voltage adjustment knob is also connected to an instrument terminal clamp. The voltage and current display module is connected to the voltage adjustment knob and the current adjustment knob. The illuminance meter is installed near the instrument's wiring clamp.

[0007] The voltage and current display module includes a voltage display module and a current display module. The voltage display module is connected in parallel to the input and output terminals of the voltage adjustment knob, and the current display module is connected in series with the current adjustment knob.

[0008] It also includes a mobile control box, in which the adjustment module and the detection module are both installed. The mobile control box is equipped with a testing platform that allows locomotive instruments to be placed.

[0009] The dimensions of the testing platform are compatible with the locomotive instruments, and the dimensional error of the testing platform is within 2mm.

[0010] There are four sets of instrument wiring clips: the first instrument wiring clip, the second instrument wiring clip, the third instrument wiring clip, and the fourth instrument wiring clip.

[0011] The number of illuminance meters is the same as the number of instrument wiring clamps.

[0012] The illuminance meter is set up in correspondence with the instrument wiring clamp, and the detection end of the illuminance meter faces the light display area of ​​the locomotive instrument connected to the instrument wiring clamp.

[0013] The accuracy of the illuminance meter is 0.01 Lux.

[0014] The switching power supply is a DC switching power supply with an output voltage adjustment range of 0-150V.

[0015] Both the voltage adjustment knob and the current adjustment knob have scale markings on their surfaces.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: This invention proposes a multi-channel illuminance detection device for locomotive instruments, which provides quantifiable criteria for brightness detection through structural design. The adjustment module includes a voltage and current display module and a switching power supply. Voltage and current adjustment knobs connected to the output of the switching power supply enable precise control of the power supply voltage and current. Simultaneously, the voltage and current display module displays relevant values ​​in real time, ensuring stable and monitorable power supply parameters during the detection process. This stable and controllable power supply environment provides a consistent foundation for illuminance detection, avoiding brightness fluctuations caused by unstable power supply. Several illuminance detectors in the detection module are installed near the instrument wiring clamps, allowing direct detection of the instrument lighting's illuminance. The illuminance detectors provide specific illuminance values, which serve as a quantitative basis for judging whether the instrument lighting is qualified. Compared to existing technologies that rely solely on visual observation, this solution utilizes specific values ​​obtained from illuminance detectors, eliminating reliance on subjective judgment and overcoming the problem of inaccurate judgment due to the lack of reference standards. This provides a clear and quantifiable basis for determining whether the instrument lighting is qualified. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a multi-channel illuminance detection device for locomotive instruments in an embodiment of this utility model.

[0018] In the diagram: 1. Mobile control box; 2. Voltage adjustment knob; 3. Current adjustment knob; 4. Voltage and current display module; 5. Instrument wiring clamp; 5-1. First instrument wiring clamp; 5-2. Second instrument wiring clamp; 5-3. Third instrument wiring clamp; 5-4. Fourth instrument wiring clamp; 6. Illuminance meter; 6-1. First illuminance meter; 6-2. Second illuminance meter; 6-3. Third illuminance meter; 6-4. Fourth illuminance meter; 7. Switching power supply. Detailed Implementation

[0019] In the field of railway locomotive operation and maintenance technology, the display parameters of locomotive instrument lights have a crucial impact on train operation safety and maintenance quality. However, there are significant technical deficiencies in the current process of detecting the brightness of locomotive instrument lights. From operational practice, railway locomotive crew members are prone to visual fatigue and difficulties in confirming instrument information due to differences in brightness among some locomotive instrument lights, as well as the influence of ambient light changes such as day-night cycles and tunnel conditions. These issues pose potential risks to train operation safety. During maintenance work, differences in the brightness and color rendering of instrument lights on the same locomotive prevent it from meeting the technical requirements for civilized maintenance, affecting the normal handover process.

[0020] The core technical problem mentioned above lies in the lack of clear technical standards and effective testing methods for locomotive instrument brightness testing: Current standards lack clear technical specifications and specific numerical indicators for instrument brightness verification, making it difficult to accurately define customer technical needs and resulting in a lack of executable technical basis for operational standards. During the periodic maintenance and replacement of locomotive instrument light strips and panels, the lack of specific numerical standards leads to higher maintenance costs and increased labor intensity for workers. Furthermore, there are risks of instrument malfunctions due to reversed polarity of the lighting lamps and safety hazards during replacement. The inability to provide manufacturers with clear technical standards and numerical ranges for instrument brightness makes it difficult to eliminate the root cause quality problems arising from technical differences between different batches of newly manufactured products. During routine maintenance and calibration, the lack of specific numerical standards and reliance on visual observation for light display compliance makes inconsistencies in calibration results due to human factors an unavoidable technical issue.

[0021] Based on the above-mentioned technical problems, it is clearly necessary to develop a multi-channel illuminance detection device for locomotive instruments. This device can accurately read the illuminance values ​​of instrument lighting, providing technical support for screening aging light source devices and identifying compatible instruments with consistent lighting displays, thereby solving a series of problems in the existing technology.

[0022] 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.

[0023] 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.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] 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, "several" means two or more, unless otherwise explicitly specified.

[0026] Reference Figure 1 The image shows a specific embodiment of the multi-channel illuminance detection device for locomotive instruments provided by this utility model, comprising: The adjustment module includes a voltage and current display module 4 and a switching power supply 7. The output terminal of the switching power supply 7 is connected to a voltage adjustment knob 2 and a current adjustment knob 3. The voltage adjustment knob 2 is also connected to an instrument terminal clamp 5. The voltage and current display module 4 is connected to the voltage adjustment knob 2 and the current adjustment knob 3. The illuminance meter 6 is installed near the instrument wiring clamp 5.

[0027] Specifically, in this multi-channel illuminance detection device for locomotive instruments, the adjustment module and the illuminance detector 6 work together to form an effective illuminance detection mechanism. The adjustment module, as the core of power supply and parameter control, utilizes a switching power supply 7 to provide stable power output. The voltage adjustment knob 2 and current adjustment knob 3 connected to the output of the switching power supply 7 allow for targeted adjustment of the output voltage and current to adapt to the power supply parameter requirements of different detection scenarios. The voltage and current display module 4, connected to the voltage adjustment knob 2 and current adjustment knob 3, provides real-time feedback of the current voltage and current values, ensuring the accuracy and monitorability of parameter adjustment. The instrument wiring clip 5 connected to the voltage adjustment knob 2 forms a reliable electrical connection with the locomotive instruments, delivering the regulated power to the locomotive instruments and driving the instrument lights to illuminate.

[0028] The illuminance detector 6, installed near the instrument terminal 5, can collect the illuminance data of the locomotive instrument lights in real time when the locomotive instrument lights are on. Thus, from providing adjustable drive power to the locomotive instruments to synchronously detecting the illuminance of the locomotive instrument lights, the entire workflow is closely connected, and the detection of the illuminance of the locomotive instrument lights can be effectively completed.

[0029] In another specific embodiment of the multi-channel illuminance detection device for locomotive instruments, the voltage and current display module 4 includes an independent voltage display module and a current display module. The voltage display module is connected in parallel to the input and output terminals of the voltage adjustment knob 2, and can display the voltage values ​​before and after the voltage adjustment knob 2 is adjusted in real time and accurately, so that the operator can intuitively grasp the voltage change. The current display module is connected in series with the current adjustment knob 3, and can monitor the current flowing through the current adjustment knob 3 in real time to ensure that the current adjustment is within an appropriate range.

[0030] The multi-channel illuminance detection device for locomotive instruments is also equipped with a mobile operating box 1. The adjustment module and detection module are integrated and installed inside this mobile operating box 1. This integrated design not only facilitates stable connection between modules but also effectively protects each component. The mobile operating box 1 has a dedicated detection platform that can accommodate the locomotive instruments. Its dimensions are adapted to the locomotive instruments, and the platform is preferably circular with a diameter of 100mm. The dimensional error of the detection platform is within 2mm. This design ensures that the locomotive instruments are placed stably during the detection process, reducing the impact of instrument movement and external light on the detection results.

[0031] There are four sets of instrument wiring clips 5: a first instrument wiring clip 5-1, a second instrument wiring clip 5-2, a third instrument wiring clip 5-3, and a fourth instrument wiring clip 5-4. These four sets of clamps connect to four instruments on the same locomotive, allowing simultaneous illumination detection of all four instruments and improving detection efficiency. The first instrument wiring clip 5-1, second instrument wiring clip 5-2, third instrument wiring clip 5-3, and fourth instrument wiring clip 5-4 are connected to the voltage adjustment knob 2. Specifically, the switching power supply 7 is connected to the voltage adjustment knob 2 via wires, with five parallel lines from this connection point. Four of these lines connect to the first instrument wiring clip 5-1, second instrument wiring clip 5-2, third instrument wiring clip 5-3, and fourth instrument wiring clip 5-4, respectively, to provide power to the connected locomotive instruments; the other line connects to the voltage display module to display the voltage value in real time.

[0032] In use, the first instrument terminal clamp 5-1, the second instrument terminal clamp 5-2, the third instrument terminal clamp 5-3, and the fourth instrument terminal clamp 5-4 respectively clamp the positive and negative terminals of the four instruments on the same locomotive, so as to achieve the coordination of power supply to the instruments and illumination detection.

[0033] The number of illuminance detectors 6 is the same as the number of instrument wiring clips 5, that is, four units in total: a first illuminance detector 6-1, a second illuminance detector 6-2, a third illuminance detector 6-3, and a fourth illuminance detector 6-4. Each detector is configured to correspond one-to-one with one of the four sets of instrument wiring clips. Furthermore, the detection end of each illuminance detector 6 is oriented towards the lighting display area of ​​the locomotive instrument connected to its corresponding instrument wiring clip 5, ensuring accurate capture of the instrument lighting illumination information. Simultaneously, the illuminance detectors 6 have an accuracy of 0.01 Lux, meeting the requirements for precise detection of instrument lighting illuminance.

[0034] The switching power supply 7 is a DC switching power supply with an output voltage adjustment range of 0-150V. It can provide stable power supply for locomotive instruments of different specifications and voltage requirements, so as to detect the illumination of the instruments under different voltage conditions.

[0035] Both the voltage adjustment knob 2 and the current adjustment knob 3 adopt a rotary adjustment structure, which is convenient to operate. Both have scale markings on their surfaces, allowing operators to intuitively understand the current adjustment status and easily adjust the voltage and current to the required values.

[0036] In terms of component connection, the switching power supply 7 is connected to the voltage adjustment knob 2 via wires, and five parallel lines are connected from this connection point to the first instrument terminal 5-1, the second instrument terminal 5-2, the third instrument terminal 5-3, the fourth instrument terminal 5-4, and the voltage display module, respectively; the current adjustment knob 3 is connected in series to the current display module. By connecting the terminals of the four instruments to the corresponding terminal clamps, the illuminance of the instruments can be measured.

[0037] To make the multi-channel illuminance detection device for locomotive instruments provided by this utility model easier to understand, the following explanation will be based on a specific application scenario.

[0038] The practical value of this utility model's multi-channel illuminance detection device for locomotive instruments can be fully demonstrated in scenarios where instrument lighting brightness is tested on HXD2 locomotives in railway locomotive maintenance workshops.

[0039] To address the lack of specific numerical criteria for determining the brightness of locomotive instruments in current standards, a provisional standard for locomotive instrument illuminance verification was established before the application of this device. This standard clearly stipulates that the acceptable illuminance range is from 0.05 Lux to 8.00 Lux, providing a clear basis for determining the test results.

[0040] When maintenance personnel need to test the brightness of four instruments on an HXD2 locomotive, they first push the mobile control box 1 of the device to the work station. After opening the control box, they place each of the four locomotive instruments to be tested onto the testing platform inside the control box. Because the testing platform has a diameter of 100mm and an error within 2mm, it precisely matches the size of the instruments, ensuring stable placement and effectively reducing external light interference.

[0041] Subsequently, the maintenance personnel pressed the power switches of the four illuminance meters 6, adjusting their resolution to the LX setting. At this point, the detection end of each illuminance meter 6 was aligned with the corresponding instrument's light display area, ready for testing. Next, they picked up the first instrument wiring clip 5-1, the second instrument wiring clip 5-2, the third instrument wiring clip 5-3, and the fourth instrument wiring clip 5-4, and clamped them onto the positive and negative terminals of the four instruments, ensuring a secure connection.

[0042] After completing the wiring, turn on the power switch of the device. The switching power supply 7 starts working, and its output voltage is within the adjustable range of 0-150V. The maintenance personnel observe the voltage and current display module 4, and first adjust the current adjustment knob 3 to stabilize the value on the current display module at 2A. The scale markings on the surface of the knob make the adjustment process more intuitive and accurate.

[0043] Afterwards, the maintenance personnel turned the voltage adjustment knob 2 and adjusted the voltage in the order of DC60V, DC70V, DC80V, DC90V, DC100V, and DC110V. Each time the voltage was adjusted to a certain level, the voltage display module would display the current voltage value in real time. At the same time, the four illuminance detectors 6 would simultaneously detect the illuminance of the corresponding instrument and display the specific value with an accuracy of 0.01 Lux. The maintenance personnel promptly recorded the illuminance data of the four instruments at each voltage level.

[0044] After recording, maintenance personnel compare these data with the established interim standard for locomotive instrument illuminance verification (0.05 Lux to 8.00 Lux). If one instrument is found to have illuminance values ​​exceeding the range at multiple voltage levels, it indicates that the light source of that instrument may be aging and requires repair or replacement. If the illuminance values ​​of four instruments differ significantly at the same voltage level, maintenance personnel can use this data to select instruments with consistent lighting to ensure uniform display when installed on the same locomotive.

[0045] Throughout the testing process, the device accurately reads the illuminance values ​​and has clear judgment standards, avoiding the judgment errors caused by relying solely on visual observation in the past. This not only improves testing efficiency but also provides a reliable technical basis for the maintenance and replacement of locomotive instruments, ensuring the driving safety of locomotives and the quality of civilized rectification.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-channel illuminance detection device for locomotive instruments, characterized in that, include: The adjustment module includes a voltage and current display module (4) and a switching power supply (7). The output terminal of the switching power supply (7) is connected to a voltage adjustment knob (2) and a current adjustment knob (3). The voltage adjustment knob (2) is also connected to an instrument terminal clamp (5). The voltage and current display module (4) is connected to the voltage adjustment knob (2) and the current adjustment knob (3). The illuminance meter (6) is installed near the instrument wiring clamp (5).

2. The multi-channel illuminance detection device for locomotive instruments according to claim 1, characterized in that, The voltage and current display module (4) includes a voltage display module and a current display module. The voltage display module is connected in parallel to the input and output terminals of the voltage adjustment knob (2), and the current display module is connected in series with the current adjustment knob (3).

3. The multi-channel illuminance detection device for locomotive instruments according to claim 1, characterized in that, It also includes a mobile operating box (1), in which the adjustment module and the detection module are both installed. The mobile operating box (1) is provided with a detection platform that allows locomotive instruments to be placed.

4. The multi-channel illuminance detection device for locomotive instruments according to claim 3, characterized in that, The dimensions of the testing platform are adapted to the locomotive instruments, and the dimensional error of the testing platform is within 2mm.

5. The multi-channel illuminance detection device for locomotive instruments according to claim 1, characterized in that, The number of instrument wiring clips (5) is four sets, namely the first instrument wiring clip (5-1), the second instrument wiring clip (5-2), the third instrument wiring clip (5-3), and the fourth instrument wiring clip (5-4); The first instrument terminal clamp (5-1), the second instrument terminal clamp (5-2), the third instrument terminal clamp (5-3), and the fourth instrument terminal clamp (5-4) are respectively connected to the voltage adjustment knob (2).

6. The multi-channel illuminance detection device for locomotive instruments according to claim 1, characterized in that, The number of light intensity detectors (6) is the same as the number of instrument wiring clips (5).

7. A multi-channel illuminance detection device for locomotive instruments according to claim 6, characterized in that, The illuminance detector (6) is set in correspondence with the instrument wiring clamp (5), and the detection end of the illuminance detector (6) faces the light display area of ​​the locomotive instrument connected to the instrument wiring clamp (5).

8. The multi-channel illuminance detection device for locomotive instruments according to claim 1, characterized in that, The accuracy of the illuminance meter (6) is 0.01 Lux.

9. A multi-channel illuminance detection device for locomotive instruments according to claim 1, characterized in that, The switching power supply (7) is a DC switching power supply with an output voltage adjustment range of 0-150V.

10. A multi-channel illuminance detection device for locomotive instruments according to claim 1, characterized in that, Both the voltage adjustment knob (2) and the current adjustment knob (3) have scale markings on their surfaces.

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