CN215867567U - Integrated display screen of fault self-diagnosis diesel locomotive - Google Patents
Integrated display screen of fault self-diagnosis diesel locomotive Download PDFInfo
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- CN215867567U CN215867567U CN202122524387.9U CN202122524387U CN215867567U CN 215867567 U CN215867567 U CN 215867567U CN 202122524387 U CN202122524387 U CN 202122524387U CN 215867567 U CN215867567 U CN 215867567U
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Abstract
The utility model provides a fault self-diagnosis integrated display screen of an internal combustion locomotive, which comprises: a power supply control module; a power control module comprising: the system comprises a fault diagnosis unit, a power supply control unit, a digital quantity input/output unit and a communication unit; the digital quantity input and output unit is used for acquiring and outputting digital signals and identifying the ID of the position of a locomotive display screen; the communication unit is used for receiving an internal control instruction sent by the main control module and transmitting a signal of the fault diagnosis unit to the main control module; the fault diagnosis unit is used for collecting circuit board temperature, voltage ripple and communication parameters in a locomotive display screen. The utility model can replace the common driver console switch, instrument, indicator light and locomotive display screen, and the console surface is more concise.
Description
Technical Field
The utility model relates to the field of locomotive display screens, in particular to an integrated display screen of a fault self-diagnosis internal combustion locomotive.
Background
The locomotive display screen is a key part of the locomotive, is arranged on a driver console, is a window for locomotive data display and simple human-computer interaction, and directly restricts the stability of the locomotive due to the reliability of the locomotive display screen.
Most locomotive display screens have complex internal structures and higher failure rates, have limited space in a cab and are not suitable for installing new electronic devices; at present, accurate fault diagnosis and prediction cannot be carried out on an applied locomotive display screen. Besides a locomotive display screen, a large number of switches, instruments, indicator lights and the like are also arranged on most locomotive driver control consoles; this makes the entire driver console complicated in structure, which is not favorable for driver driving operation.
Disclosure of Invention
The utility model provides a fault self-diagnosis integrated display screen of an internal combustion locomotive, which aims to overcome the problems.
The utility model comprises the following steps: a power supply control module;
a power control module comprising: the system comprises a fault diagnosis unit, a power supply control unit, a digital quantity input/output unit and a communication unit;
the fault diagnosis unit, the power supply control unit, the digital quantity input and output unit and the communication unit are connected through a bus;
the power supply control unit is respectively connected with the fault diagnosis unit, the digital quantity input and output unit and the communication unit and serves as a main control center;
the digital quantity input and output unit is used for acquiring a plurality of paths of digital quantity input signals and outputting a plurality of paths of digital quantity output signals; ID identification of the position of a locomotive display screen;
the communication unit is used for receiving an internal control instruction sent by the main control module and transmitting a signal of the fault diagnosis unit to the main control module;
the fault diagnosis unit is used for collecting the temperature, voltage ripple and communication parameters of a circuit board in the locomotive display screen and transmitting a fault signal to the display screen.
Further, a fault diagnosis unit comprising: the device comprises a signal control processor, a communication interface, a signal acquisition circuit and a multi-channel signal conversion circuit;
the signal control processor, the communication interface, the signal acquisition circuit and the multi-channel signal conversion circuit are connected through a bus;
the communication interface includes: the system comprises an Ethernet communication interface, a CAN communication interface, an RS232 communication interface, an RS422 communication interface, a general I/O interface and an asynchronous external memory interface;
the signal acquisition circuit is used for acquiring information, namely acquisition values, in the hardware circuit; and transmitting the collected value to a multi-channel signal conversion circuit;
the multi-channel signal conversion circuit is used for receiving the collected values and transmitting the collected values to the processor in time intervals.
Further, still include: the system comprises a communication module, a data storage module, a satellite positioning module, a fault self-diagnosis internal combustion locomotive integrated display screen and a main control module;
the main control module comprises: a storage unit and an interface unit;
the storage unit and the interface unit are connected through a bus;
the interface unit includes: an Ethernet communication interface, an LPT1 parallel interface, a multi-channel RS232 serial interface, a loudspeaker interface, an AT-IDE hard disk interface, a VGA/LED display interface and a plurality of USB 2.0 external equipment interfaces;
the main control module is connected with other equipment of the locomotive through each communication sub-module and the Ethernet communication interface;
the satellite positioning module receives time, date and locomotive speed through an antenna and transmits the time, date and locomotive speed to the main control module through the RS232 module;
the fuel control box collects the fuel quantity and transmits the fuel quantity to the main control module through the RS422 communication sub-module;
a communication module, comprising: RS232 communication submodule, external bus communication module: the system comprises an MVB communication submodule, an RS422 communication submodule and a CAN communication submodule, wherein the submodules in the communication modules are connected through a bus.
Furthermore, the MVB communication sub-module is used for collecting the equipment information on the locomotive MVB bus and transmitting the information to the main control module through the bus;
the RS232 communication submodule is used for receiving the information transmitted by the satellite positioning module and the reconnection module and transmitting the information to the main control module through a bus;
the RS422 communication submodule is used for collecting information of a locomotive brake system and fuel control box equipment and transmitting the information to the main control module through a bus;
and the CAN communication submodule is used for acquiring equipment information on a locomotive CAN bus and transmitting the information to the main control module through the bus.
Further, a communication module, comprising: an external communication module and an RS232 communication submodule;
the external communication module is used for acquiring information of other equipment on the locomotive bus and transmitting the information to the main control module;
and the RS232 communication submodule is used for receiving the satellite positioning information and the reconnection information and transmitting the information to the main control module.
Further, still include: a reconnection module;
the reconnection module is used for performing reconnection information transmission with the reconnection locomotive, and the main control module transmits reconnection data to the reconnection module through the RS232 communication submodule and transmits the reconnection data to the reconnection locomotive through the reconnection router.
The utility model integrates various control functions and display functions into the display screen and diagnoses whether the display screen of the locomotive has faults or not. The locomotive display screen is mainly used for a crane of an internal combustion locomotive, can replace most of common driver console switches, instruments, indicator lamps and locomotive display screens, and enables the platform surface of the whole driver console to be simpler.
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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 block diagram of the structure of the present invention;
FIG. 2 is a functional block diagram of a power control module according to the present invention.
Detailed Description
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 some, but not all, embodiments of the present invention. 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.
Example 1
As shown in fig. 1, the present invention includes: the main control module, the communication module, the power supply control module, the data storage module, the satellite positioning module, the reconnection module and the fault self-diagnosis diesel locomotive integrated display screen are integrated into one device.
The main control module and each communication submodule are stacked together through a PC104PLUS bus, the main control module, the MVB communication submodule, the RS232 communication submodule, the RS422 communication submodule and the CAN communication submodule are arranged from top to bottom in sequence, and M3 positive and negative copper columns are adopted for fastening between modules of each layer and between the outermost layer module and the shell. In order to increase the heat dissipation of the main control module, a heat conducting fin, an aluminum foil tape, heat conducting silica gel and the like are added between the main control module and the shell heat radiating fin, so that the main control module and the shell heat radiating fin are tighter and have better heat dissipation. The power supply control module, the satellite positioning module and the reconnection module are fastened on a box body of a locomotive display screen through screws and through copper columns.
After the main control module runs the application program, the main control module carries out information interaction with other equipment of the locomotive through each communication submodule and a 100M Ethernet communication interface of the main control module; and the information interaction is carried out with the power control module, the satellite positioning module, the reconnection module and the like through the serial port and the RS232 communication submodule.
The external interfaces of the fault self-diagnosis internal combustion locomotive integrated display screen all adopt JY3470 series domestic aviation connectors, and reliable connection between the locomotive display screen and other external equipment is guaranteed.
In the fault self-diagnosis diesel locomotive integrated display screen, the functions of integration, replacement of most of common driver console switches, indicator lamps and fault self-diagnosis are mainly completed through a power supply control module.
As shown in fig. 2, the functional block diagram of the power control module of the present invention is a core power supply control and monitoring module of the whole locomotive display screen, and the circuit thereof can be divided into four parts, namely a power supply control unit, a digital input/output unit, a fault diagnosis unit and a communication unit according to the function.
The main control chip of the power supply control unit is STM32F107VCT6, and is also the main control chip of the whole power supply control module, and is mainly responsible for power management, brightness control, power failure maintenance, audio amplification and the hardware watchdog of the whole locomotive display screen, namely, the system is restarted when the system has problems. The power management means that the power supply control unit can perform level conversion, and the +3.3V of the conversion isolation output is mainly used for supplying power to the chip of the whole power control module; the +5V of the multi-path of the conversion isolation output is mainly used for supplying power to other modules in the locomotive display screen, and the main control chip can enable or disable the power supply of the modules so as to manage power consumption and control the power supply starting sequence of the other modules of the locomotive display screen to minimize the starting inrush current. The brightness control means that the power supply control unit can boost the converted +5V to + 20-40V, and the main control chip controls the 21-stage output; that is, the backlight intensity of the industrial LED lcd can be controlled as required, and any one of 21 predefined brightness settings can be selected by command, and the initial brightness is set to 10 as the default brightness level. The power-down retention means that the power supply control unit can maintain the power supply of the key component 120S from side to side after the external power supply is powered down. The audio amplification means that the power supply control unit can amplify the power of the audio signal of the main control module, so that the whole locomotive display screen can directly drive the loudspeaker. The hardware watchdog is a hardware watchdog circuit built by using a timer of a main control chip of the power supply control unit, and is a basis for realizing the watchdog on the whole locomotive display screen.
The fault diagnosis unit mainly comprises a signal control processor ADSP-CM408, a plurality of communication interfaces, a signal acquisition conditioning circuit, a multi-channel signal conversion circuit and the like. The ADSP-CM408 floating-point arithmetic unit of the processor has the highest working frequency of 240MHz, and is also integrated with an SRAM memory with the highest 384KB, a flash memory with the highest 2MB and a plurality of accelerators. The communication interface comprises an Ethernet communication interface, a CAN communication interface, an RS232 communication interface, an RS422 communication interface, a general purpose input/output (GPIO) interface and a 16-bit asynchronous external memory interface. The signal acquisition conditioning circuit can be divided into a voltage acquisition conditioning circuit, a current acquisition conditioning circuit and a temperature acquisition conditioning circuit, and different acquisition signals are acquired and adjusted by corresponding hardware circuits and then are sent to a multi-path signal conversion circuit; the multi-channel signal conversion circuit can transmit the collected value to the processor in a time-sharing mode. Each communication parameter is directly transmitted to the processor for processing by each communication interface circuit, and the processing result is temporarily stored in a chip of the fault diagnosis unit and can also be dumped into a memory card in a locomotive display screen through an instruction; the corresponding interface of the display screen can be directly checked, so that maintenance personnel can quickly locate fault points and solve faults.
Example 2
The utility model comprises the following steps: the system comprises a main control module, a communication module, a power supply control module, a data storage module, a satellite positioning module, a reconnection module and a fault self-diagnosis internal combustion locomotive integrated display screen;
the communication module is connected with the main control module through a PC104PLUS bus;
the power supply control module is connected with each module through a wire harness in a power supply way;
the data storage module is connected with the main control module through a finished product flat cable;
the satellite positioning module and the reconnection module are connected with the RS232 communication sub-module through wiring harnesses; the fault self-diagnosis diesel locomotive integrated display screen is connected with a VGA/LED display interface of the main control module through a shielding wire harness;
the main control module is used for the operation and control core of the locomotive display screen and is a final execution unit for information processing and program operation;
the communication module is used for carrying out information with other equipment on a corresponding bus of the locomotive and sending the interactive information to the main control module;
the power supply control module is used for power supply control, monitoring, ID identification and digital quantity input and output of a locomotive display screen;
the data storage module is used for storing the embedded ubuntu operating system, the application system, the system temporary data, the comparison result of self diagnosis and the fault data;
the satellite positioning module is used for receiving signals of a Beidou satellite to determine the position and the speed of the locomotive and transmitting time, position and speed information to the main control module;
the reconnection module is used for performing reconnection information interaction with a reconnection locomotive;
and the fault self-diagnosis diesel locomotive integrated display screen is used for displaying data.
The processor of the main control module adopts LX800, and the main control module comprises: embedded ubuntu operating system, the master control module further includes: 256MB DRAM BIOS ROM, 100M Ethernet communication interface, LPT1 parallel interface, 2-channel RS232 serial interface, loudspeaker interface, AT-IDE hard disk interface, VGA/LED display interface, PC104PLUS bus and 4 USB 2.0 external equipment interfaces;
the main control module carries out information interaction with other equipment of the locomotive through each communication sub-module and the Ethernet communication interface; the main control module performs information interaction with the power supply control module, the satellite positioning module and the reconnection module through the serial port and RS232 communication submodule; the information includes: tractive effort, tractive effort power, handle position, commutator, locomotive mileage, operating conditions, time and date, vigilance, fuel quantity, braking information, fault information, reconnection information.
The vehicle-mounted microcomputer is used for collecting information, and the information is transmitted to a CAN communication submodule of the display screen through a CAN bus and is transmitted to the main control module, wherein the information comprises: traction force, traction force power, handle position, commutator, locomotive mileage and working condition information;
the satellite positioning module receives time, date and locomotive speed through an antenna and transmits the time, date and locomotive speed to the main control module through the RS232 module;
the fuel control box collects the fuel quantity and transmits the fuel quantity to the main control module through the RS422 communication submodule.
Other parts in the brake system are collected, and brake information is transmitted to the main control module through the IPM module through the RS422 communication submodule;
fault information acquired by the power supply control module is directly transmitted to the main control module through the power supply control module; the fault information from other parts of the locomotive is transmitted to the corresponding communication submodule through the CAN communication bus or RS232 and then transmitted to the main control module.
The main control module transmits the reconnection information to the reconnection module through the RS232 communication submodule, transmits the reconnection information to a reconnection router of a reconnection locomotive through a reconnection router in the locomotive, and transmits the reconnection router to the control module through the reconnection module and the RS232 communication submodule in sequence.
A communication module, comprising: RS232 communication submodule, external bus communication module: the MVB communication sub-module, the RS422 communication sub-module and the CAN communication sub-module are connected together through a PC104PLUS bus;
the MVB communication sub-module is used for carrying out information interaction with equipment on an MVB bus of the locomotive and transmitting the information to the main control module through a PC104PLUS bus;
the RS232 communication submodule is used for receiving information transmitted by the satellite positioning module and the reconnection module and transmitting the information to the main control module through a PC104PLUS bus, and the information comprises: location, time, date, speed, reconnection information;
the RS422 communication submodule is used for carrying out information interaction with a locomotive brake system and fuel control box equipment and transmitting the information to the main control module through a PC104PLUS bus, and the information comprises: brake information, fuel quantity;
the CAN communication sub-module is used for carrying out information interaction with equipment on a locomotive CAN bus and transmitting the information to the main control module through a PC104PLUS bus;
the communication module is connected with the main control module through a PC104PLUS bus, and the communication module is used for carrying out information interaction with other equipment on the corresponding bus of the locomotive and transmitting the information to the main control module.
The power control module includes: the system comprises a power supply control unit, a digital quantity input and output unit, a fault diagnosis unit and a communication unit, wherein each unit in a power supply control module is integrated on the power supply control module;
the power supply control unit is used for managing a power supply, controlling brightness, maintaining power failure, amplifying audio and restarting a system, namely a hardware watchdog when the system has problems;
the hardware watchdog is a hardware watchdog circuit built by utilizing a timer of a main control chip of a power supply control unit, and is a basis for realizing the watchdog by a whole locomotive display screen; the method has the functions of preventing the locomotive display screen program from running away and also preventing the locomotive display screen program from generating endless loop during online operation.
The specific implementation process is that a timer of a main control chip of a power supply control unit is used for building a timing circuit, the timing output of the timing circuit is connected to a reset end of the main control chip of a main control module, and a program resets the timer within a certain time range (commonly called 'feeding dog'), so that the timer cannot overflow all the time when the program works normally, and a reset signal cannot be generated. If the program fails, the watchdog timer is not reset within a timing period, causing the watchdog timer to overflow to generate a reset signal and restart the entire locomotive display screen.
The digital quantity input and output unit is used for collecting and outputting digital quantity, and replaces a switch and an indicator light which are commonly used on the upper part of an original driver console; the digital quantity input and output unit is also used for locomotive display screen position ID identification.
The communication unit adopts SP3232EEN-L/TR as a communication chip and is a bridge for communicating the whole power control module with the main control module; and the main control module is responsible for receiving an internal control instruction sent by the main control module and transmitting a result of the fault diagnosis unit to the main control module through the communication unit.
Has the advantages that:
1. the utility model integrates various control functions and display functions into the display screen and self-diagnoses whether the display screen of the locomotive has faults or not. The locomotive display screen is mainly used for a crane of a certain harmonious internal combustion locomotive, and can replace most of common driver console switches, instruments, indicator lamps and locomotive display screens, so that the platform surface of the whole driver console is simpler.
2. The utility model is a cab electronic platform integrating multiple electronic functions, which can communicate with devices such as a locomotive braking system, a fuel control box, a vehicle-mounted microcomputer and the like, so that locomotive instructions and control functions are connected with each other, the whole locomotive is controlled and integrated for management, and the operation of a locomotive driver is simpler and more convenient.
3. The utility model can replace most common driver console switches, instruments, indicator lamps and locomotive computer display panels, so that the whole driver console is simpler.
4. The utility model integrates a plurality of control and display functions, and a driver can check important locomotive running data through the locomotive display screen and can directly communicate and respond to each locomotive subsystem and the vehicle-mounted microcomputer through the locomotive display screen.
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 utility model 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 (6)
1. The utility model provides a trouble self-diagnosis diesel locomotive integrated display screen which characterized in that includes: a power supply control module;
the power control module includes: the system comprises a fault diagnosis unit, a power supply control unit, a digital quantity input/output unit and a communication unit;
the fault diagnosis unit, the power supply control unit, the digital quantity input and output unit and the communication unit are connected through a bus;
the power supply control unit is respectively connected with the fault diagnosis unit, the digital quantity input and output unit and the communication unit and serves as a main control center;
the digital quantity input and output unit is used for acquiring a plurality of paths of digital quantity input signals and outputting a plurality of paths of digital quantity output signals; ID identification of the position of a locomotive display screen;
the communication unit is used for receiving an internal control instruction sent by the main control module and transmitting a signal of the fault diagnosis unit to the main control module;
the fault diagnosis unit is used for collecting the temperature, voltage ripple and communication parameters of a circuit board in the locomotive display screen and transmitting a fault signal to the display screen.
2. The integrated display screen of the diesel locomotive with fault self-diagnosis function according to claim 1, wherein the fault diagnosis unit comprises: the device comprises a signal control processor, a communication interface, a signal acquisition circuit and a multi-channel signal conversion circuit;
the signal control processor, the communication interface, the signal acquisition circuit and the multi-channel signal conversion circuit are connected through a bus;
the communication interface includes: the system comprises an Ethernet communication interface, a CAN communication interface, an RS232 communication interface, an RS422 communication interface, a general I/O interface and an asynchronous external memory interface;
the signal acquisition circuit is used for acquiring information, namely acquisition values, in the hardware circuit; and transmitting the collected value to a multi-channel signal conversion circuit;
the multi-channel signal conversion circuit is used for receiving the collected values and transmitting the collected values to the processor in time intervals.
3. The integrated display screen of the fault self-diagnosis diesel locomotive according to claim 1, further comprising: the system comprises a communication module, a data storage module, a satellite positioning module, a fault self-diagnosis internal combustion locomotive integrated display screen and a main control module;
the main control module comprises: a storage unit and an interface unit;
the storage unit and the interface unit are connected through a bus;
the interface unit includes: an Ethernet communication interface, an LPT1 parallel interface, a multi-channel RS232 serial interface, a loudspeaker interface, an AT-IDE hard disk interface, a VGA/LED display interface and a plurality of USB 2.0 external equipment interfaces;
the main control module is connected with other equipment of the locomotive through each communication sub-module and the Ethernet communication interface;
the satellite positioning module receives time, date and locomotive speed through an antenna and transmits the time, date and locomotive speed to the main control module through the RS232 module;
the fuel control box collects the fuel quantity and transmits the fuel quantity to the main control module through the RS422 communication sub-module;
a communication module, comprising: RS232 communication submodule, external bus communication module: the system comprises an MVB communication submodule, an RS422 communication submodule and a CAN communication submodule, wherein the submodules in the communication modules are connected through a bus.
4. The integrated display screen of the fault self-diagnosis diesel locomotive according to claim 3,
the MVB communication sub-module is used for collecting equipment information on an MVB bus of the locomotive and transmitting the information to the main control module through the bus;
the RS232 communication submodule is used for receiving the information transmitted by the satellite positioning module and the reconnection module and transmitting the information to the main control module through a bus;
the RS422 communication submodule is used for collecting information of a locomotive brake system and fuel control box equipment and transmitting the information to the main control module through a bus;
and the CAN communication submodule is used for acquiring equipment information on a locomotive CAN bus and transmitting the information to the main control module through the bus.
5. The integrated display screen of the fault self-diagnosis diesel locomotive according to claim 3, wherein the communication module comprises: an external communication module and an RS232 communication submodule;
the external communication module is used for acquiring information of other equipment on the locomotive bus and transmitting the information to the main control module;
and the RS232 communication submodule is used for receiving the satellite positioning information and the reconnection information and transmitting the information to the main control module.
6. The integrated display screen of the fault self-diagnosis diesel locomotive according to claim 1, further comprising: a reconnection module;
the reconnection module is used for performing reconnection information transmission with the reconnection locomotive, and the main control module transmits reconnection data to the reconnection module through the RS232 communication submodule and transmits the reconnection data to the reconnection locomotive through the reconnection router.
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| CN202122524387.9U CN215867567U (en) | 2021-10-20 | 2021-10-20 | Integrated display screen of fault self-diagnosis diesel locomotive |
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| CN202122524387.9U CN215867567U (en) | 2021-10-20 | 2021-10-20 | Integrated display screen of fault self-diagnosis diesel locomotive |
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