Locomotive cab testing method and device
By collecting and comparing the actual parameters generated in locomotive driver's room equipment operation with preset theoretical parameters, the problems of low test efficiency and difficulty in quantification in the existing test methods are solved, and more efficient and accurate test results are achieved.
Patent Information
- Application Number
- CN202411745925.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-02-14
AI Technical Summary
The existing locomotive driver's room testing methods have problems such as low test efficiency, inability to detect the illumination of the lamp, slow heating speed of the electric heating equipment, and difficult to quantify.
By obtaining preset test process and theoretical parameters, the locomotive driver's indoor equipment is operated based on these parameters, the actual parameters generated during the operation are collected, and the actual parameters and theoretical parameters are judged based on the actual parameters and theoretical parameters.
The test efficiency is greatly improved, the testers can avoid the time when waiting for the equipment temperature rise, and the test results can be quantified, improving the accuracy and efficiency of the test.
Smart Images
Figure CN119437749A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of electric locomotives, and in particular to a locomotive cab testing method and device. Background Art
[0002] The locomotive cab was originally designed as a whole with the rear equipment of the locomotive. After the overall assembly was completed, functional tests were carried out before the vehicle left the factory. With the improvement of our company's locomotive structural design level, the mainstream products are now independent cabs, which are assembled offline and tested for various functional equipment before general assembly.
[0003] The functional equipment in the driver's cab includes internal equipment and external equipment. The external equipment mainly includes: windshield wipers, headlights, auxiliary lights, and the internal equipment mainly includes electric heating glass, foot warmers, knee warmers, cab ceiling lights, cab fans, air conditioners, etc. Before the general assembly of the cab, the above equipment needs to be tested separately to ensure that the circuits are correct and the functions are normal.
[0004] The current tests on the functional equipment in the driver's room mainly include the following steps: Step 1: Connect the test power supply to the driver's cab; Step 2: Tester A closes and disconnects each device in the driver's cab; Step 3: Tester B checks inside and outside the driver's cab to see if the operated equipment is working properly, such as whether the headlights and auxiliary lights are on, whether the foot warmer is hot, and whether the electric heating glass is hot; Step 4: End the test, fill in the test record, and recycle the test cables and test power supply.
[0005] However, the above scheme has the following problems: 1. External equipment such as headlights and auxiliary lights must be observed externally to see if they are functioning normally, which results in low test efficiency and an inability to detect the illumination of the lamps; 2. The main function of equipment such as electric heating glass, foot warmers, and knee warmers is heating, and the tester is required to manually feel whether the equipment is hot. Due to the slow heating speed, this results in low test efficiency, inaccurate feeling, and difficulty in quantification. Summary of the invention
[0006] In view of this, in order to overcome at least one aspect of the above problems, an embodiment of the present invention provides a locomotive cab testing method, comprising the following steps: Obtain the preset test process and corresponding theoretical parameters; operating the equipment in the locomotive driver's cab based on the test process; The actual parameters generated during the acquisition operation; The device is judged based on the actual parameter and the theoretical parameter.
[0007] In some embodiments, it also includes: The first output terminal and the second output terminal of the external power supply are respectively connected to corresponding points of the wiring terminal block in the locomotive driver's cab.
[0008] In some embodiments, it also includes: The output voltage of the first output terminal is set to 220V; The output voltage of the second output terminal is set to 110V.
[0009] In some embodiments, the actual parameters generated during the acquisition operation further include: The actual current generated during operation is acquired using current transformers.
[0010] In some embodiments, it also includes: Performing analog-to-digital conversion on the actual current to obtain a digital signal.
[0011] Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a locomotive cab testing device, comprising: HMI equipment, used to obtain the preset test process and corresponding theoretical parameters; A collection module, used for collecting actual parameters generated during the operation of the equipment in the locomotive driver's cab based on the test process; A determination module is configured to determine the device based on the actual parameters and the theoretical parameters.
[0012] In some embodiments, it also includes: External power supply, used to power the locomotive cab, HMI equipment and acquisition modules; Wherein, the first output terminal and the second output terminal of the external power supply are respectively connected to corresponding points of the terminal block in the locomotive driver's cab.
[0013] In some embodiments, the output voltage of the first output terminal is set to 220V; the output voltage of the second output terminal is set to 110V.
[0014] In some embodiments, the acquisition module further includes a current transformer for acquiring actual current generated during the operation.
[0015] In some embodiments, the acquisition module further includes an analog-to-digital conversion circuit for performing analog-to-digital conversion on the actual current to obtain a digital signal.
[0016] The present invention has one of the following beneficial technical effects: the solution proposed in the present invention determines whether the equipment is normal by collecting the actual parameters generated during the operation of the equipment, so that the test personnel do not need to wait for the actual temperature rise of the equipment to make a judgment, nor do they need two people to work and observe everywhere, thereby greatly improving the test efficiency, and the test results can also be quantified based on different experimental processes. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.
[0018] Figure 1 A schematic diagram of a flow chart of a locomotive cab testing method provided by an embodiment of the present invention; Figure 2 A schematic diagram of a locomotive cab testing device provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.
[0020] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.
[0021] According to one aspect of the present invention, an embodiment of the present invention provides a locomotive cab testing method, such as Figure 1 As shown, it may include the steps of: S1, obtaining a preset test process and corresponding theoretical parameters; S2, operating the equipment in the locomotive driver's cab based on the test process; S3, actual parameters generated during the acquisition operation; S4, judging the device based on the actual parameters and the theoretical parameters.
[0022] The solution proposed in the present invention determines whether the equipment is normal by collecting the actual parameters generated during the operation of the equipment. This eliminates the need for test personnel to wait for the actual temperature rise of the equipment before making a judgment, nor does it require two people to work and observe everywhere. Therefore, the test efficiency is greatly improved, and the test results can also be quantified based on different experimental processes.
[0023] In some embodiments, it also includes: The first output terminal and the second output terminal of the external power supply are respectively connected to corresponding points of the wiring terminal block in the locomotive driver's cab.
[0024] In some embodiments, it also includes: The output voltage of the first output terminal is set to 220V; The output voltage of the second output terminal is set to 110V.
[0025] In some embodiments, the actual parameters generated during the acquisition operation further include: The actual current generated during operation is acquired using current transformers.
[0026] In some embodiments, it also includes: Performing analog-to-digital conversion on the actual current to obtain a digital signal.
[0027] Specifically, various lights, electric heating glass, foot warmers, knee warmers and other equipment in the driver's cab are all resistive loads. The output power of these devices is proportional to the square of the current. Therefore, when these devices are working, their output power can be equivalently calculated by detecting the working current.
[0028] You can use Figure 2 The test device shown in the figure is used for testing. The test device consists of power supply, HMI device, current transformer, analog-to-digital conversion circuit board and other components. Among them, the power supply is used to power the internal components of the test device and provide test power for the driver's cab under test; the HMI device is used to edit and call the test process, configure the test parameters, and output the test results; the current transformer is used to measure the load current in the test route online; the analog-to-digital conversion circuit board is used to convert the current collected by the current transformer into a digital signal and send the test data to the HMI device through the RS485 communication protocol.
[0029] During the test, first connect the power input of the test device to the external 220V power supply, and connect the power output of the test device to the power input terminal block of the control panel in the driver's cab. For example, when testing the driver's cab of the FXN3B locomotive, the power output of the test device, line 1# and line 2#, can be connected to the corresponding points of the terminal block XT11 of the control panel in the driver's cab of the FXN3B locomotive. Then set the output voltage of the power supply of line 1# to 220V and the output voltage of the power supply of line 2# to 110V.
[0030] Next, set the test process on the HMI of the test device, including the power supply output voltage value, theoretical current value, and power supply working time. For example, set the test step one to close and disconnect the headlights, the action time is 1S, and the theoretical current value is set to 500mA; set the test step two to close and disconnect the auxiliary lights, the action time is 1S, and the theoretical current value is set to 300mA. Other equipment are set similarly. Then, in the driver's cab, according to the test process requirements, close and disconnect the switches of various lamps, electric furnaces, fans and other equipment in turn; the HMI compares the preset theoretical current value with the current value collected by the current transformer, and outputs the comparison conclusion. After completing the test of all steps and judging that the results are qualified, end the test work, remove the test wires, and shut down the test device.
[0031] The solution proposed in the present invention collects the current generated during the operation of the equipment to express parameters such as temperature rise and illumination value, so as to determine whether the equipment is normal. In this way, there is no need for test personnel to wait for the actual temperature rise of the equipment to make a judgment, nor is there a need for two people to work and observe everywhere. Therefore, the test efficiency is greatly improved, and the test results can be quantified based on different experimental processes. For example, parameters that are greatly affected by environmental factors such as lamp illumination and heater temperature and are difficult to measure can be quantified through current parameters.
[0032] Based on the same inventive concept, according to another aspect of the present invention, an embodiment of the present invention further provides a locomotive cab testing device, comprising: HMI equipment, used to obtain the preset test process and corresponding theoretical parameters; A collection module, used for collecting actual parameters generated during the operation of the equipment in the locomotive driver's cab based on the test process; A determination module is configured to determine the device based on the actual parameters and the theoretical parameters.
[0033] In some embodiments, it also includes: External power supply, used to power the locomotive cab, HMI equipment and acquisition modules; Wherein, the first output terminal and the second output terminal of the external power supply are respectively connected to corresponding points of the terminal block in the locomotive driver's cab.
[0034] In some embodiments, the output voltage of the first output terminal is set to 220V; the output voltage of the second output terminal is set to 110V.
[0035] In some embodiments, the acquisition module further includes a current transformer for acquiring actual current generated during the operation.
[0036] In some embodiments, the acquisition module further includes an analog-to-digital conversion circuit for performing analog-to-digital conversion on the actual current to obtain a digital signal.
[0037] Specifically, various lights, electric heating glass, foot warmers, knee warmers and other equipment in the driver's cab are all resistive loads. The output power of these devices is proportional to the square of the current. Therefore, when these devices are working, their output power can be equivalently calculated by detecting the working current.
[0038] You can use Figure 2 The test device shown in the figure is used for testing. The test device consists of power supply, HMI device, current transformer, analog-to-digital conversion circuit board and other components. Among them, the power supply is used to power the internal components of the test device and provide test power for the driver's cab under test; the HMI device is used to edit and call the test process, configure the test parameters, and output the test results; the current transformer is used to measure the load current in the test route online; the analog-to-digital conversion circuit board is used to convert the current collected by the current transformer into a digital signal and send the test data to the HMI device through the RS485 communication protocol.
[0039] During the test, first connect the power input of the test device to the external 220V power supply, and connect the power output of the test device to the power input terminal block of the control panel in the driver's cab. For example, when testing the driver's cab of the FXN3B locomotive, the power output of the test device, line 1# and line 2#, can be connected to the corresponding points of the terminal block XT11 of the control panel in the driver's cab of the FXN3B locomotive. Then set the output voltage of the power supply of line 1# to 220V and the output voltage of the power supply of line 2# to 110V.
[0040] Next, set the test process on the HMI of the test device, including the power supply output voltage value, theoretical current value, and power supply working time. For example, set the test step one to close and disconnect the headlights, the action time is 1S, and the theoretical current value is set to 500mA; set the test step two to close and disconnect the auxiliary lights, the action time is 1S, and the theoretical current value is set to 300mA. Other equipment are set similarly. Then, in the driver's cab, according to the test process requirements, close and disconnect the switches of various lamps, electric furnaces, fans and other equipment in turn; the HMI compares the preset theoretical current value with the current value collected by the current transformer, and outputs the comparison conclusion. After completing the test of all steps and judging that the results are qualified, end the test work, remove the test wires, and shut down the test device.
[0041] The solution proposed in the present invention collects the current generated during the operation of the equipment to express parameters such as temperature rise and illumination value, so as to determine whether the equipment is normal. In this way, there is no need for test personnel to wait for the actual temperature rise of the equipment to make a judgment, nor is there a need for two people to work and observe everywhere. Therefore, the test efficiency is greatly improved, and the test results can be quantified based on different experimental processes. For example, parameters that are greatly affected by environmental factors such as lamp illumination and heater temperature and are difficult to measure can be quantified through current parameters.
[0042] Finally, it should be noted that a person skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods.
[0043] Furthermore, it should be appreciated that the computer-readable storage medium (eg, memory) herein may be either volatile memory or nonvolatile memory, or may include both volatile memory and nonvolatile memory.
[0044] It will also be appreciated by those skilled in the art that various exemplary logic blocks, modules, circuits and algorithm steps described in conjunction with the disclosure herein can be implemented as electronic hardware, computer software or a combination of the two. In order to clearly illustrate this interchangeability of hardware and software, a general description has been given to the functions of various schematic components, blocks, modules, circuits and steps. Whether this function is implemented as software or hardware depends on specific applications and the design constraints imposed on the entire system. Those skilled in the art can implement the function in various ways for each specific application, but this implementation decision should not be interpreted as causing a departure from the disclosed scope of the embodiments of the present invention.
[0045] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope disclosed in the embodiments of the present invention as defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.
[0046] It should be understood that, as used herein, the singular forms "a", "an" are intended to include the plural forms as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations including one or more of the associated listed items.
[0047] The serial numbers of the embodiments disclosed in the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.
[0048] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.
[0049] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
Claims
1. A locomotive cab testing method, characterized in that: The following steps are involved: Obtain the preset test process and corresponding theoretical parameters; operating the equipment in the locomotive driver's cab based on the test process; The actual parameters generated during the acquisition operation; The device is judged based on the actual parameter and the theoretical parameter.
2. The method according to claim 1, characterized in that Also includes: The first output terminal and the second output terminal of the external power supply are respectively connected to corresponding points of the wiring terminal block in the locomotive driver's cab.
3. The method according to claim 2, characterized in that Also includes: The output voltage of the first output terminal is set to 220V; The output voltage of the second output terminal is set to 110V.
4. The method according to claim 1, characterized in that The actual parameters generated during the acquisition operation further include: The actual current generated during operation is acquired using current transformers.
5. The method according to claim 4, characterized in that Also includes: Performing analog-to-digital conversion on the actual current to obtain a digital signal.
6. A locomotive cab testing device, characterized in that: include: HMI equipment, used to obtain the preset test process and corresponding theoretical parameters; A collection module, used for collecting actual parameters generated during the operation of the equipment in the locomotive driver's cab based on the test process; A determination module is configured to determine the device based on the actual parameters and the theoretical parameters.
7. The device according to claim 6, characterized in that Also includes: External power supply, used to power the locomotive cab, HMI equipment and acquisition modules; Wherein, the first output terminal and the second output terminal of the external power supply are respectively connected to corresponding points of the terminal block in the locomotive driver's cab.
8. The device according to claim 7, characterized in that The output voltage of the first output terminal is set to 220V; the output voltage of the second output terminal is set to 110V.
9. The device according to claim 6, characterized in that The acquisition module also includes a current transformer for acquiring the actual current generated during the operation.
10. The device according to claim 6, characterized in that The acquisition module also includes an analog-to-digital conversion circuit, which is used to perform analog-to-digital conversion on the actual current to obtain a digital signal.