CN115219250A - Motor train unit power vehicle IO loop test method - Google Patents
Motor train unit power vehicle IO loop test method Download PDFInfo
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- CN115219250A CN115219250A CN202210726595.3A CN202210726595A CN115219250A CN 115219250 A CN115219250 A CN 115219250A CN 202210726595 A CN202210726595 A CN 202210726595A CN 115219250 A CN115219250 A CN 115219250A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/60—Testing or simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention provides an IO loop test method for a motor train unit power vehicle. The method comprises the following steps: carrying out DO equipment test on the motor train unit power car and DI equipment test on the motor train unit power car based on the loop back test device; the loop test device comprises a device switch, a PC (personal computer), an Ethernet bus interface, a CPU (central processing unit), a switch A, a switch B, a signal acquisition module and a current adjustable module. The invention designs an IO loop test device, which is used for carrying out IO test on a motor train unit power vehicle and completing the IO test before the motor train unit leaves a factory. The technical scheme of the invention solves the problems that in the prior art, the IO test is carried out by adopting the real vehicle reconnection of two motor train units and power vehicles, the operation is complicated, the flexibility is not available, the unnecessary waste of manpower and material resource cost is easily caused, and the like.
Description
Technical Field
The invention relates to the technical field of motor train unit power vehicle IO loop test, in particular to a motor train unit power vehicle IO loop test method.
Background
At present, a multiple connection test of the motor train unit must be carried out between two motor train units, and a high-voltage power grid and a dynamic debugging line must be provided for the test as a guarantee. The requirement on test conditions is high, the drop-pull period before the test is long, particularly, under the condition that the reconnection test is unsuccessful, the test working condition needs to be arranged again for repeated verification, the debugging period of the motor train unit is severely limited, and the reconnection efficiency of the motor train unit is low. The method has the advantages that the IO test is carried out by adopting the real vehicle reconnection of two motor train units and power vehicles, the problems of complex operation, inflexibility and the like exist, and unnecessary waste of manpower and material resource cost is easily caused.
Disclosure of Invention
According to the technical problem, an IO loop test method for a motor train unit power vehicle is provided. The invention designs an IO loop test device, which is used for carrying out IO test on motor train units and power cars of the motor train units and completing the IO test before the motor train units leave a factory.
The technical means adopted by the invention are as follows:
an IO loop test method for a motor train unit power vehicle comprises the following steps: carrying out DO equipment test on the motor train unit power car and DI equipment test on the motor train unit power car based on the loop back test device; the loop test device comprises a device switch, a PC (personal computer), an Ethernet bus interface, a CPU (central processing unit), a switch A, a switch B, a signal acquisition module and a current adjustable module.
Further, the DO equipment test of the motor train unit power vehicle specifically comprises the following steps:
s1, powering on a loop test device, defaulting that when the loop test device is powered on, switches A and B of the loop test device are in an off state, carrying out channel self-check on the loop test device, giving a switch instruction by a PC (personal computer), transmitting the switch instruction to a CPU (central processing unit) through an Ethernet bus, controlling the switch A and the switch B of the loop test device to be closed by the CPU, forming a conduction path, and observing an acquisition result received by the PC;
s2, if the acquisition result in the step S1 is normal, powering off the loop test device, firstly connecting heavy-load connectors Y1 and Y3 pins of a DO (data only interface) device of the motor train unit car with X1 and X2 pins of the loop test device respectively through a tooling cable with a heavy-load connector, simultaneously interconnecting the vehicle-mounted switchboard with the device switchboard through a network cable, starting powering on the IO (input/output) device of the motor train unit car and the loop test device after the tooling cable is connected, defaulting that the power is just powered on at a normally-closed point, and freely setting the conduction current of the loop test device through a PC (personal computer) within an allowable value range according to the maximum conduction current I of the DO device of the motor train unit car;
s3, the PC gives a switch instruction and transmits the switch instruction to the CPU through an Ethernet bus, the CPU controls the switch A to be closed and the switch B to be closed, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can monitor an action instruction issued to DO equipment by the vehicle-mounted microcomputer in a real-time loop-back mode, and at the moment, the acquisition result received by the PC and the monitoring result of the vehicle-mounted microcomputer instruction are observed;
s4, setting and recovering to a default initial state through a PC (personal computer), wherein in the default initial state, switches A and B of a loop test device are in a disconnected state, recovering to the default initial state through a vehicle-mounted microcomputer, in the default initial state, DO equipment is in a normally closed state, and then pins Y1 and Y2 of a heavy-load connector of DO equipment of a motor train of the motor train unit are respectively connected with pins X1 and X2 of the loop test device to carry out normally closed contact test;
s5, freely setting the conduction current of the loop test device through a PC (personal computer) machine within an allowable value range according to the maximum conduction current I of DO (data only) equipment of a motor vehicle of the motor train unit as required;
s6, the PC gives a switch instruction and transmits the switch instruction to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be closed, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can monitor an action instruction issued to DO equipment by the vehicle-mounted microcomputer in a loop-back mode in real time, and at the moment, the acquisition result received by the PC and the monitoring result of the vehicle-mounted microcomputer instruction are observed.
Further, in the step S1, the acquisition result received by the PC includes a "1" state and a "0" state, and when the acquisition result is the "1" state, it indicates that the loopback test device is in a normal state; and when the acquisition result is in a state of 0, the device of the loop back testing device is in fault, and the test is stopped.
Further, in the step S2 and the step S5, the PC sets the on current of the loop back testing apparatus to I/2.
Further, the test of the DI equipment of the motor train unit motor vehicle specifically comprises the following steps:
a1, electrifying a loop test device, defaulting that when the loop test device is just electrified, switches A and B of the loop test device are in an off state, carrying out channel self-check on the loop test device, giving a switch instruction by a PC (personal computer), transmitting the switch instruction to a CPU (central processing unit) through an Ethernet bus, controlling the switch A to be closed and the switch B to be closed by the CPU to form a conduction path, and observing an acquisition result received by the PC at the moment;
a2, if the acquisition result in the step A1 is normal, powering off the loop test device, firstly, connecting heavy-load connectors Z1 and Z2 pins of DI equipment of a motor train unit motor vehicle with X2 and X3 pins of the loop test device respectively through a tooling cable with a heavy-load connector, simultaneously interconnecting a vehicle-mounted switch and the device switch through a network cable, starting to power on the IO equipment of the motor train unit motor vehicle and the loop test device after the tooling cable is connected, defaulting the DI equipment to be in a working state, and freely setting the conduction current of the loop test device through a PC (personal computer) according to the conduction current I required by the DI equipment of the motor train unit motor vehicle within an allowable value range;
a3, the PC gives a switch instruction, the switch instruction is transmitted to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be disconnected, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can loop back in real time to monitor the acquisition result sent to the vehicle-mounted microcomputer by the DI equipment, and the acquisition result received by the PC and the monitored acquisition result of the DI equipment are observed at the moment.
Further, in the step A1, the acquisition result received by the PC includes a "1" state and a "0" state, and when the acquisition result is the "1" state, it indicates that the loopback test device is in a normal state; and when the acquisition result is in a state of 0, the device of the loop back test device is in fault, and the test is stopped.
Further, in the step A2, the PC sets the on-current of the loop test apparatus to I.
Compared with the prior art, the invention has the following advantages:
the method for testing the IO loop of the motor train unit power vehicle improves automation efficiency, is flexible to operate, has strong universality, can efficiently test the IO loop of the motor train unit power vehicle, and greatly reduces subsequent economic investment due to one-time investment of the whole set of device.
Based on the reason, the method can be widely popularized in the fields of motor train unit power vehicle IO loop test and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an IO loop test device for a motor train unit power vehicle.
Fig. 2 is a schematic diagram of a test of a DO device of a motor train unit vehicle based on a loop back test device according to an embodiment of the invention.
Fig. 3 is a schematic diagram of a DI equipment test of a motor train unit vehicle based on a loop back test device according to an embodiment of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "above … …", "above … …", "above … … upper surface", "above", etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, the invention provides an IO loop test method for a motor train unit power vehicle, which performs a DO device test for the motor train unit power vehicle and a DI device test for the motor train unit power vehicle based on a loop test device; the loop test device comprises a device switch, a PC (personal computer), an Ethernet bus interface, a CPU (central processing unit), a switch A, a switch B, a signal acquisition module and a current adjustable module.
In specific implementation, as a preferred embodiment of the present invention, the test of the DO equipment for the motor train unit vehicle, as shown in fig. 2, specifically includes:
s1, powering on a loop test device, defaulting that when the loop test device is powered on, switches A and B of the loop test device are in an off state, performing channel self-check on the loop test device, giving a switch instruction by a PC (personal computer), transmitting the switch instruction to a CPU (central processing unit) through an Ethernet bus, controlling the switch A and the switch B of the loop test device to be closed by the CPU, forming a conduction path (as indicated by a blue line in figure 2), and observing an acquisition result received by the PC; in this embodiment, the acquisition result received by the PC includes a "1" state and a "0" state, and when the acquisition result is the "1" state, it indicates that the loopback test device is in a normal state; and when the acquisition result is in a state of 0, the device of the loop back test device is in fault, and the test is stopped.
S2, if the acquisition result in the step S1 is normal, powering off the loop test device, firstly connecting heavy-load connectors Y1 and Y3 pins of DO equipment of a motor train unit power car with X1 and X2 pins of the loop test device respectively through a tooling cable with a heavy-load connector, simultaneously interconnecting the vehicle-mounted switchboard with the device switchboard through a network cable, starting powering on the IO equipment and the loop test device of the motor train unit power car after the tooling cable is connected (as indicated by an orange line in figure 2), setting the conduction current of the loop test device at a normally closed point by default after the DO equipment is powered on, and freely setting the conduction current of the loop test device through a PC (personal computer) within an allowable value range according to the maximum conduction current I of the DO equipment of the motor train unit; in this embodiment, the on-current of the loopback test device is set to I/2 by the PC.
S3, the PC gives a switch instruction, the switch instruction is transmitted to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be closed, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can loop in real time to monitor an action instruction (shown as a green line in figure 2) issued by the vehicle-mounted microcomputer to the DO equipment, and at the moment, the acquisition result received by the PC and the vehicle-mounted microcomputer instruction monitoring result are observed;
s4, setting and recovering to a default initial state through a PC (personal computer), wherein in the default initial state, switches A and B of a loop test device are in a disconnected state, recovering to the default initial state through a vehicle-mounted microcomputer, in the default initial state, DO equipment is in a normally closed state, and then pins Y1 and Y2 of a heavy-load connector of DO equipment of a motor train unit are respectively connected with pins X1 and X2 of the loop test device (as indicated by purple lines in figure 2) to carry out normally closed contact test;
s5, freely setting the conduction current of the loop test device through a PC (personal computer) within an allowable value range according to the maximum conduction current I of DO (data only) equipment of the motor train unit power car; in this embodiment, the PC sets the on-current of the loopback test device to I/2.
S6, the PC gives a switch instruction, the switch instruction is transmitted to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be closed, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can monitor an action instruction (shown as a green line in figure 2) issued to the DO device by the vehicle-mounted microcomputer in a real-time loop-back mode, and at the moment, the acquisition result received by the PC and the monitoring result of the vehicle-mounted microcomputer instruction are observed. The judgment is according to the following table:
in specific implementation, as a preferred embodiment of the present invention, the DI equipment test for motor train units powered by a motor train unit, as shown in fig. 3, specifically includes:
a1, electrifying a loop testing device, defaulting that when the loop testing device is just electrified, switches A and B of the loop testing device are in an off state, carrying out channel self-checking on the loop testing device, giving a switch instruction by a PC (personal computer), transmitting the switch instruction to a CPU (central processing unit) through an Ethernet bus, controlling the switch A and the switch B to be closed by the CPU, forming a conduction path (as indicated by a blue line in figure 3), and observing an acquisition result received by the PC at the moment; in this embodiment, the acquisition result received by the PC includes a "1" state and a "0" state, and when the acquisition result is the "1" state, it indicates that the loopback test device is in a normal state; and when the acquisition result is in a state of 0, the device of the loop back testing device is in fault, and the test is stopped.
A2, if the acquisition result in the step A1 is normal, powering off the loop test device, firstly connecting heavy-load connectors Z1 and Z2 pins of DI equipment of a motor train unit motor vehicle with X2 and X3 pins of the loop test device through a tooling cable with a heavy-load connector, simultaneously interconnecting the vehicle-mounted switch with the device switch through a network cable, starting to power on the IO equipment and the loop test device of the motor train unit motor vehicle after the tooling cable is connected (as indicated by red lines in the upper diagram), enabling the DI equipment to be in a working state by default, and freely setting the conduction current of the loop test device through a PC (personal computer) according to the conduction current I required by the DI equipment of the motor train unit motor vehicle within an allowable value range as required; in this embodiment, the on-current of the loopback test device is set to I by the PC.
A3, the PC gives a switch instruction, the switch instruction is transmitted to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be disconnected, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can monitor the acquisition result sent to the vehicle-mounted microcomputer by the DI equipment in a real-time loop-back mode (as indicated by a green line in figure 3), and at the moment, the acquisition result received by the PC and the monitored acquisition result of the DI equipment are observed. The judgment is according to the following table:
finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. An IO loop test method for a motor train unit power vehicle is characterized by comprising the following steps: carrying out DO equipment test on the motor train unit power car and DI equipment test on the motor train unit power car based on the loop back test device; the loop test device comprises a device switch, a PC (personal computer), an Ethernet bus interface, a CPU (central processing unit), a switch A, a switch B, a signal acquisition module and a current adjustable module.
2. The IO loop test method for motor train unit vehicles according to claim 1, wherein the DO device test for motor train unit vehicles specifically comprises:
s1, powering on a loop test device, defaulting that when the loop test device is powered on, switches A and B of the loop test device are in an off state, carrying out channel self-check on the loop test device, giving a switch instruction by a PC (personal computer), transmitting the switch instruction to a CPU (central processing unit) through an Ethernet bus, controlling the switch A and the switch B of the loop test device to be closed by the CPU, forming a conduction path, and observing an acquisition result received by the PC;
s2, if the acquisition result in the step S1 is normal, powering off the loop test device, firstly connecting heavy-load connectors Y1 and Y3 pins of a DO (data only interface) device of the motor train unit car with X1 and X2 pins of the loop test device respectively through a tooling cable with a heavy-load connector, simultaneously interconnecting the vehicle-mounted switchboard with the device switchboard through a network cable, starting powering on the IO (input/output) device of the motor train unit car and the loop test device after the tooling cable is connected, defaulting that the power is just powered on at a normally-closed point, and freely setting the conduction current of the loop test device through a PC (personal computer) within an allowable value range according to the maximum conduction current I of the DO device of the motor train unit car;
s3, the PC gives a switch instruction, the switch instruction is transmitted to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be closed, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can loop in real time to monitor an action instruction issued to DO equipment by the vehicle-mounted microcomputer, and at the moment, a collection result and a vehicle-mounted microcomputer instruction monitoring result received by the PC are observed;
s4, setting and recovering to a default initial state through a PC (personal computer), wherein in the default initial state, switches A and B of a loop test device are in a disconnected state, recovering to the default initial state through a vehicle-mounted microcomputer, in the default initial state, DO equipment is in a normally closed state, and then pins Y1 and Y2 of a heavy-load connector of DO equipment of a motor train of the motor train unit are respectively connected with pins X1 and X2 of the loop test device to carry out normally closed contact test;
s5, freely setting the conduction current of the loop test device through a PC (personal computer) within an allowable value range according to the maximum conduction current I of DO (data only) equipment of the motor train unit power car;
s6, the PC gives a switch instruction and transmits the switch instruction to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be closed, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can monitor an action instruction issued to DO equipment by the vehicle-mounted microcomputer in a loop-back mode in real time, and at the moment, the acquisition result received by the PC and the monitoring result of the vehicle-mounted microcomputer instruction are observed.
3. The motor train unit power vehicle IO loop test method according to claim 2, characterized in that in the step S1, the collection result received by the PC includes a "1" state and a "0" state, and when the collection result is the "1" state, it indicates that the loop test device is in a normal condition; and when the acquisition result is in a state of 0, the device of the loop back test device is in fault, and the test is stopped.
4. The motor train unit power vehicle IO loop test method according to claim 2, wherein in the step S2 and the step S5, the conduction current of the loop test device is set to I/2 by the PC.
5. The IO loop test method for motor train unit vehicles according to claim 1, wherein the DI device test for motor train unit vehicles specifically comprises:
a1, electrifying a loop test device, defaulting that when the loop test device is just electrified, switches A and B of the loop test device are in an off state, carrying out channel self-check on the loop test device, giving a switch instruction by a PC (personal computer), transmitting the switch instruction to a CPU (central processing unit) through an Ethernet bus, controlling the switch A to be closed and the switch B to be closed by the CPU to form a conduction path, and observing an acquisition result received by the PC at the moment;
a2, if the acquisition result in the step A1 is normal, powering off the loop test device, firstly connecting heavy-load connectors Z1 and Z2 pins of DI equipment of a motor train unit motor vehicle with X2 and X3 pins of the loop test device respectively through a tooling cable with a heavy-load connector, and simultaneously interconnecting a vehicle-mounted switch with the device switch through a network cable;
a3, the PC gives a switch instruction, the switch instruction is transmitted to the CPU through the Ethernet bus, the CPU controls the switch A to be closed and the switch B to be disconnected, meanwhile, an Ethernet data loop is formed through interconnection of the switches, the PC can loop back in real time to monitor the acquisition result sent to the vehicle-mounted microcomputer by the DI equipment, and the acquisition result received by the PC and the monitored acquisition result of the DI equipment are observed at the moment.
6. The motor train unit power vehicle IO loop test method of claim 5, wherein in the step A1, the collection result received by the PC includes a "1" state and a "0" state, and when the collection result is the "1" state, the loop test device is in a normal condition; and when the acquisition result is in a state of 0, the device of the loop back test device is in fault, and the test is stopped.
7. The motor train unit power vehicle IO loop test method of claim 5, wherein in the step A2, the conduction current of the loop test device is set to I through the PC.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210726595.3A CN115219250A (en) | 2022-06-23 | 2022-06-23 | Motor train unit power vehicle IO loop test method |
| PCT/CN2022/132733 WO2023245974A1 (en) | 2022-06-23 | 2022-11-18 | Io loopback test method for motor train unit power train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210726595.3A CN115219250A (en) | 2022-06-23 | 2022-06-23 | Motor train unit power vehicle IO loop test method |
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| CN202210726595.3A Pending CN115219250A (en) | 2022-06-23 | 2022-06-23 | Motor train unit power vehicle IO loop test method |
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| WO (1) | WO2023245974A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023245974A1 (en) * | 2022-06-23 | 2023-12-28 | 中车大连电力牵引研发中心有限公司 | Io loopback test method for motor train unit power train |
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| CN111366809A (en) * | 2020-04-22 | 2020-07-03 | 中车长春轨道客车股份有限公司 | Motor train unit static reconnection test system based on network control |
| CN113325829A (en) * | 2021-06-10 | 2021-08-31 | 哈尔滨工业大学 | Automatically controlled IO interface board of fault self diagnosis robot |
| CN114559992B (en) * | 2022-03-14 | 2022-12-02 | 中国电子信息产业集团有限公司第六研究所 | Train safety protection method, model training method and device and electronic equipment |
| CN115219250A (en) * | 2022-06-23 | 2022-10-21 | 中车大连电力牵引研发中心有限公司 | Motor train unit power vehicle IO loop test method |
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2022
- 2022-06-23 CN CN202210726595.3A patent/CN115219250A/en active Pending
- 2022-11-18 WO PCT/CN2022/132733 patent/WO2023245974A1/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023245974A1 (en) * | 2022-06-23 | 2023-12-28 | 中车大连电力牵引研发中心有限公司 | Io loopback test method for motor train unit power train |
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| Publication number | Publication date |
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| WO2023245974A1 (en) | 2023-12-28 |
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