CN205003537U - Train communication equipment - Google Patents
Train communication equipment Download PDFInfo
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- CN205003537U CN205003537U CN201520669713.7U CN201520669713U CN205003537U CN 205003537 U CN205003537 U CN 205003537U CN 201520669713 U CN201520669713 U CN 201520669713U CN 205003537 U CN205003537 U CN 205003537U
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- 230000005540 biological transmission Effects 0.000 abstract description 18
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
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- 230000003068 static effect Effects 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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- 230000001052 transient effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model provides a train communication equipment, include: host system and ethernet module, host system is used for sending a serial data for ether wire mould piece, carries train operating data among the serial data, the ethernet module is used for converting a serial data into first ethernet data transmission and gives the host computer. The utility model provides a train communication equipment has realized the ethernet communication between host system and the host computer, effectual communication reliability and the data transmission bauds of having improved.
Description
Technical Field
The utility model relates to a communication technology especially relates to a train communication equipment.
Background
In the rail transit technologies of light rails, subway vehicles and the like, the parameter state and the data transmission state of a control main board of equipment such as train traction and train assistance directly influence the control effect of a train, and meanwhile, the control main board has important significance for realizing a control scheme and finding fault diagnosis, so that debugging personnel often need to acquire and detect the running data of the control main board by using an upper computer and monitor the running condition of the control main board in real time. In the debugging process, the reliability of communication and the speed of data transmission are important.
The data acquisition and detection of the control mainboard of the existing equipment for train traction, auxiliary equipment and the like mostly adopt a serial communication technology, and the interfaces mostly adopt RS232 and RS485 interfaces. A debugging person observes the instantaneous value of the specific parameter of the control mainboard through serial port debugging software on the upper computer so as to know whether the parameter state, the data transmission state and the like of the vehicle are normal or not, and the parameter of the control mainboard is modified through the serial port debugging software so as to control the running state of the equipment.
In the existing debugging technology adopting serial communication, in the debugging process, due to the complexity of the debugging environment, the serial interface is often damaged, the communication quality in remote communication cannot be ensured, and the communication reliability is low; meanwhile, the transmission rate of serial communication is still slow to a certain extent, and a real-time monitoring system under a specific condition cannot be met.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model provides a train communication equipment for improve communication reliability and data transmission speed.
The utility model provides a train communication equipment, include: the main control module is connected with the Ethernet module; wherein,
the main control module is used for sending first serial data to the Ethernet module, and the first serial data carries train operation data;
and the Ethernet module is used for converting the first serial data into first Ethernet data and sending the first Ethernet data to the upper computer.
In an embodiment of the present invention, the ethernet module includes: an Ethernet controller and an Ethernet interface; the Ethernet controller is connected with the Ethernet interface;
the Ethernet controller is used for converting the first serial data into first Ethernet data and sending the first Ethernet data to the upper computer through the Ethernet interface;
and the Ethernet interface is used for connecting an upper computer.
In an embodiment of the present invention, the main control module is a DSP controller, and the DSP controller is connected to the ethernet controller through a serial peripheral interface SPI bus.
In an embodiment of the present invention, the ethernet module further includes: an isolation transformer; the Ethernet controller is connected with the Ethernet interface through an isolation transformer;
and the isolation transformer is used for isolating the Ethernet controller.
In an embodiment of the present invention, the ethernet module further includes: the isolation transformer is connected with the Ethernet interface through the Ethernet protection circuit;
and the Ethernet protection circuit is used for protecting the Ethernet module.
In an embodiment of the present invention, the ethernet module further includes: the wireless router is connected with the Ethernet interface;
and the wireless router is used for transmitting the Ethernet data acquired from the Ethernet interface to the upper computer in a wireless mode.
The utility model discloses an in the embodiment, ethernet controller still is used for receiving the second ethernet data that the host computer sent to convert second ethernet data into second serial data and send to host system, wherein, carry train debugging command in the second ethernet data.
The utility model discloses an in the embodiment, host system still is used for receiving second serial data to according to the running state of second serial data control train.
The utility model discloses an in the embodiment, host system adopts the embedded network communication protocol uIP protocol stack that retrencies.
In the train communication device provided by this embodiment, the main control module sends the acquired first serial data carrying the train operation data to the ethernet module; after the Ethernet module receives the first serial data sent by the main control module, the first serial data is converted into first Ethernet data and sent to the upper computer, and Ethernet communication between the main control module and the upper computer is achieved. In the embodiment, the train communication equipment adopting Ethernet communication effectively improves the communication reliability and the data transmission speed.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of train communication equipment provided by the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the train communication device provided by the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of the train communication device provided by the present invention;
fig. 4 is a schematic circuit diagram of a fourth embodiment of the train communication device provided by the present invention.
Description of reference numerals:
100-a main control module; 200-an ethernet module;
210-an ethernet controller; 220-an isolation transformer;
230-ethernet protection circuitry; 240-ethernet interface;
250-wireless router.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a train communication equipment aims at solving the technical problem that communication reliability is low and data transmission rate is low among the debugging technology of current adoption serial communication.
The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is a schematic structural diagram of a first embodiment of the train communication device, as shown in fig. 1, the train communication device in this embodiment includes: the main control module 100 is connected with the Ethernet module 200; the main control module 100 is configured to send first serial data to the ethernet module 200, where the first serial data carries train operation data; the ethernet module 200 is configured to convert the first serial data into first ethernet data and send the first ethernet data to the upper computer.
Specifically, the main control module 100 may be a Digital Signal Processing (DSP) controller or an Advanced RISC Machine (ARM) controller, and may be specifically applied to a control main board of train equipment such as train traction, assistance, and network to control operation of the equipment. The main control module 100 may obtain train operation data through the peripheral circuit, and carry the train operation data in the first serial data, and transmit the train operation data to the ethernet module 200 through a serial bus between the main control module 100 and the ethernet module 200. The train operation data comprises train operation information, train fault information and the like, and the upper computer can know whether the operation state of the train is normal or not according to the train operation data and debug the train accordingly.
After receiving the first serial data sent by the main control module 100, the ethernet module 200 may convert the first serial data into ethernet data (i.e., first ethernet data), and send the ethernet data to the upper computer through the ethernet, so as to implement ethernet communication between the main control module 100 and the upper computer.
In the prior art, serial communication is adopted for train debugging, and due to the fact that debugging environment is complex, interface damage is easy to happen, transmission distance is short, communication quality cannot be guaranteed in long-distance communication, and communication reliability is low; and train communication equipment in this embodiment, host system sends the first serial data that carries train operation data earlier for the ethernet module, after the ethernet module received the first serial data that host system sent, convert first serial data into first ethernet data and send for the host computer again, the ethernet communication between host system and the host computer has been realized, compare serial interface, the ethernet interface is stable, and is not fragile, and transmission distance is far away, and stability is strong, can guarantee remote communication's communication quality, equipment's communication reliability is higher. In addition, the transmission rate of serial communication is still relatively slow to a certain extent, and the adoption of serial communication in the prior art cannot meet the requirement of a real-time monitoring system under a specific condition; in the embodiment, the train communication equipment adopts the Ethernet communication, and the transmission rate of the Ethernet communication is far higher than that of the serial communication, so that the real-time monitoring system for various conditions can be met.
In the train communication device provided by this embodiment, the main control module sends the acquired first serial data carrying the train operation data to the ethernet module; after the Ethernet module receives the first serial data sent by the main control module, the first serial data is converted into first Ethernet data and sent to the upper computer, and Ethernet communication between the main control module and the upper computer is achieved. In the embodiment, the train communication equipment adopting Ethernet communication effectively improves the communication reliability and the data transmission speed.
Fig. 2 is a schematic structural diagram of a second embodiment of the train communication device provided in the present invention, and this embodiment is a further function refinement of the ethernet module 200 in the embodiment shown in fig. 1. As shown in fig. 2, in this embodiment, the ethernet module 200 includes: ethernet controller 210 and ethernet interface 240; ethernet controller 210 is connected to ethernet interface 240; the ethernet controller 210 is configured to convert the first serial data into first ethernet data, and send the first ethernet data to the upper computer through the ethernet interface 240; and the Ethernet interface 240 is used for connecting an upper computer.
Specifically, the ethernet controller 210 may be an ethernet control chip integrated with a Media Access Control (MAC) layer and a physical layer (PHY); the ethernet interface 240 may be an M12 interface or an RJ45 interface, and in this embodiment, an M12 interface is preferably used to improve the reliability of data transmission.
After the ethernet controller 210 converts the first serial data sent by the main control module 100 into ethernet data (i.e., first ethernet data) suitable for transmission over the ethernet, the first ethernet data is sent to the upper computer through the ethernet interface 240, where the ethernet data may specifically be transmitted in the form of differential signals.
Preferably, the main control module 100 may be a DSP controller, and the DSP controller is connected to the ethernet controller 210 through a Serial Peripheral Interface (SPI) bus.
Specifically, the DSP controller may select various existing DSP chips according to processing requirements, and the DSP controller implements data interaction with the ethernet controller 210 through the SPI bus.
According to the train communication device provided by the embodiment, after the Ethernet controller converts the first serial data sent by the main control module into the first Ethernet data suitable for being transmitted on the Ethernet, the first Ethernet data is sent to the upper computer through the Ethernet interface, so that the Ethernet communication between the main control module and the upper computer is realized, and the communication reliability and the data transmission speed are improved.
Fig. 3 is a schematic structural diagram of a third embodiment of the train communication device provided by the present invention, and this embodiment is a further optimization of the ethernet module 200 in the above embodiment. As shown in fig. 3, in this embodiment, the ethernet module 200 further includes: an isolation transformer 220; ethernet controller 210 is connected to ethernet interface 240 via isolation transformer 220; an isolation transformer 220 for isolating the ethernet controller 210.
Specifically, an isolation transformer 220 is connected between the ethernet controller 210 and the ethernet interface 240, so as to isolate the ethernet controller 210 from the outside, protect the ethernet controller 210 from external interference, and perform voltage isolation; meanwhile, a proper isolation transformer can be selected according to the circuit design to achieve the effects of signal enhancement and impedance matching.
Optionally, the ethernet module 200 may further include: the ethernet protection circuit 230, the isolation transformer 220 is connected to the ethernet interface 240 through the ethernet protection circuit 230; an ethernet protection circuit 230 for protecting the ethernet module 200.
Specifically, the ethernet protection circuit 230 may select various existing TVS (transient voltage suppression diode) protection circuits for suppressing the influence of induced voltage surge, static electricity, and the like on the circuit, and plays a role in protecting the train communication device.
Optionally, the ethernet module 200 may further include: a wireless router 250, the wireless router 250 being connected to the ethernet interface 240; and the wireless router 250 is used for transmitting the ethernet data acquired from the ethernet interface 240 to the upper computer in a wireless manner.
Specifically, the space of a driver control room provided with the upper computer is limited, and the existing debugging technology adopting serial communication needs to arrange a plurality of data lines, so that a large amount of space is occupied, and inconvenience is brought to operation of debugging personnel; in this embodiment, the wireless router 250 is connected to the ethernet interface 240, so that wireless communication between the main control module 100 and the upper computer is realized, a network cable does not need to be laid, the problem of inconvenient operation of a debugging worker caused by adoption in the prior art is well solved, and the applicability is high.
On the basis of the above embodiment, the ethernet controller 210 is further configured to receive second ethernet data sent by the upper computer, convert the second ethernet data into second serial data, and send the second serial data to the main control module 100, and the main control module 100 is further configured to receive the second serial data and control the running state of the train according to the second serial data, where the second ethernet data carries a train debugging command.
Specifically, the upper computer may send a train debugging command through the ethernet, for example: the command of obtaining the train running state, the command of downloading the fault, the command of setting the train running parameter, and the like, after receiving the second ethernet data carrying the train debugging command, the ethernet controller 210 in the ethernet module 200 converts the second ethernet data into second serial data and sends the second serial data to the main control module 100.
After receiving the second serial data, the main control module 100 may send train operation data to the upper computer according to the difference of train debugging instructions, and may also set train operation parameters according to the train debugging instructions to control the operation state of the train.
In addition, the upper computer may also send the programming program to the main control module 100 through the ethernet, and the main control module 100 receives the programming program and then implements the programming of the program to the main control module 100.
On the basis of any of the above embodiments, the main control module 100 may adopt a simplified network communication protocol uIP protocol stack, so as to save the memory of the main control module 100 and enhance the stability of communication.
According to the train communication equipment provided by the embodiment, the isolation transformer is connected between the Ethernet controller and the Ethernet interface, so that the functions of voltage isolation, signal enhancement and impedance matching are achieved; meanwhile, an Ethernet protection circuit is connected between the isolation transformer and the Ethernet interface, so that the influence of induced voltage surge, static electricity and the like on the circuit is inhibited, and the effect of protecting the train communication equipment is achieved.
Fig. 4 is a schematic circuit diagram of a fourth embodiment of the train communication device provided in the present invention, the present embodiment is a specific circuit implementation form of the above-mentioned embodiment, as shown in fig. 4, in the present embodiment, the main control module is a DSP chip (not shown) of TMS32028335 model, the ethernet controller is an ethernet chip of ENC28J60 model, the isolation transformer is a transformer of HN16613 model, the ethernet protection circuit is a TVS tube of SLVU2.8-4 model, and the ethernet interface is an M12 interface of M12-D model. The connection relationship between the ethernet control chip and each device is specifically described below.
Ethernet chip passes through SPI interface connection host system 100, and is concrete, and the SPI interface includes: serial output SO, serial input SI, clock SCK, chip select/CS (low level active), wherein SO is connected with SPISOMIA of the DSP chip, SI is connected with SPISIMOA of the DSP chip, SCK is connected with SPICLKA of the DSP chip, and/CS is connected with SCITXDC of the DSP chip. The DSP chip performs data interaction with the Ethernet chip through SI and SO, provides a clock for data transmission to the Ethernet control chip through SCK, and selects whether the Ethernet chip is effective or not through/CS. Meanwhile, the DSP chip can configure the internal register of the Ethernet control chip through the SI and the SO SO as to set the working mode of the Ethernet. In addition, the LEDs connected with the two LED pins LEDA and LEDB of the Ethernet chip are driven by the sink current, and the working conditions (such as data sending, data receiving and data non-receiving) of the chip can be judged according to the flickering state of the LEDs through the configuration of the DSP chip to the internal register of the Ethernet chip. In addition, interfaces such as interrupt/INT, reset/RST of the ethernet chip may also be connected to the DSP chip to implement functions such as interrupt and reset.
The two interfaces TPOUT + and TPOUT-of the Ethernet chip are respectively used for outputting differential signals TPOUT2+ and TPOUT2-, the two interfaces TPIN + and TPIN-are used for inputting differential signals TPIN2+ and TPIN2-, the Ethernet chip is connected with the primary side of the isolation transformer through TPOUT +, TPOUT-and TPIN +, TPIN-, wherein TPOUT + is connected with a pin 1 of the isolation transformer, TPOUT-is connected with a pin 3 of the isolation transformer, TPIN + is connected with a pin 6 of the isolation transformer, and TPIN-is connected with a pin 8 of the isolation transformer.
Pin 1 and pin 3 of the isolation transformer are respectively used for receiving differential signals TPOUT2+ and TPOUT 2-output by the ethernet chip, and correspondingly, pin 16 and pin 14 of the isolation transformer are respectively used for outputting isolated differential signals TX2+ and TX 2-. Pins 6 and 8 of the isolation transformer are used to output differential signals TPIN2+ and TPIN 2-to the ethernet chip, respectively, and pins 11 and 9 of the isolation transformer are used to receive ethernet signals RX2+ and RX2-, respectively.
An Ethernet protection circuit (hereinafter referred to as TVS tube) is connected with the secondary side of the isolation transformer, wherein pin 1 of the TVS tube is connected with pin 16 of the isolation transformer and is used for receiving a signal TX2 +; pin2 of the TVS tube is connected with pin 14 of the isolation transformer and is used for receiving a signal TX 2-; pin 3 of the TVS tube is connected with pin 11 of the isolation transformer and is used for outputting a signal RX2 +; pin 4 of the TVS tube is connected to pin 9 of the isolation transformer for outputting signal RX 2-.
The Ethernet interface adopts an M12 interface, the M12 interface is connected with the TVS tube, wherein, pin2 of the M12 interface is connected with pin 6 of the TVS tube for outputting a signal RX2 +; pin 4 of the M12 interface is connected with pin 5 of the TVS tube for outputting a signal RX 2-; pin 1 of the M12 interface is connected with pin 8 of the TVS tube and is used for receiving a signal TX2 +; pin 3 of the M12 interface is connected to pin 7 of the TVS transistor for receiving the signal TX 2-.
It should be noted that the model of each device in fig. 4 is only an example, and may be specifically selected according to actual needs; in addition, various resistors, capacitors and other devices can be connected in the circuit according to the design requirements of the circuit, and the resistors, capacitors and other devices connected in the circuit shown in fig. 4 are only used as an example, and can be specifically selected according to the actual needs.
The specific working principle and technical effect of the train communication device provided by this embodiment are similar to those of the above embodiments, and are not described herein again.
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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A train communication device, comprising: the system comprises a main control module and an Ethernet module, wherein the main control module is connected with the Ethernet module; wherein,
the main control module is used for sending first serial data to the Ethernet module, wherein the first serial data carries train operation data;
and the Ethernet module is used for converting the first serial data into first Ethernet data and sending the first Ethernet data to the upper computer.
2. The train communication device of claim 1, wherein the ethernet module comprises: an Ethernet controller and an Ethernet interface; the Ethernet controller is connected with the Ethernet interface;
the Ethernet controller is used for converting the first serial data into first Ethernet data and sending the first Ethernet data to the upper computer through the Ethernet interface;
and the Ethernet interface is used for connecting the upper computer.
3. The train communication device of claim 2, wherein the master control module is a Digital Signal Processing (DSP) controller, and the DSP controller is connected to the Ethernet controller via a Serial Peripheral Interface (SPI) bus.
4. The train communication device of claim 3, wherein the Ethernet module further comprises: an isolation transformer; the Ethernet controller is connected with the Ethernet interface through the isolation transformer;
the isolation transformer is used for isolating the Ethernet controller.
5. The train communication device of claim 4, wherein the Ethernet module further comprises: the isolation transformer is connected with the Ethernet interface through the Ethernet protection circuit;
the Ethernet protection circuit is used for protecting the Ethernet module.
6. The train communication device of claim 5, wherein the Ethernet module further comprises: a wireless router connected to the Ethernet interface;
and the wireless router is used for transmitting the Ethernet data acquired from the Ethernet interface to the upper computer in a wireless manner.
7. The train communication device according to claim 4, wherein the ethernet controller is further configured to receive second ethernet data sent by the upper computer, convert the second ethernet data into second serial data, and send the second serial data to the main control module, wherein the second ethernet data carries a train debugging command.
8. The train communication device of claim 7, wherein the main control module is further configured to receive the second serial data and control the operation status of the train according to the second serial data.
9. The train communication device of any one of claims 1-8, wherein the master control module employs a reduced embedded network communication protocol, uIP, protocol stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669713.7U CN205003537U (en) | 2015-08-31 | 2015-08-31 | Train communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669713.7U CN205003537U (en) | 2015-08-31 | 2015-08-31 | Train communication equipment |
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| CN205003537U true CN205003537U (en) | 2016-01-27 |
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| CN201520669713.7U Active CN205003537U (en) | 2015-08-31 | 2015-08-31 | Train communication equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483938A (en) * | 2015-08-31 | 2017-03-08 | 中车大连电力牵引研发中心有限公司 | Train communication equipment |
| CN112193278A (en) * | 2019-07-08 | 2021-01-08 | 中车唐山机车车辆有限公司 | Train network management system |
-
2015
- 2015-08-31 CN CN201520669713.7U patent/CN205003537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483938A (en) * | 2015-08-31 | 2017-03-08 | 中车大连电力牵引研发中心有限公司 | Train communication equipment |
| CN112193278A (en) * | 2019-07-08 | 2021-01-08 | 中车唐山机车车辆有限公司 | Train network management system |
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Address after: 116052 Liaoning province Dalian City Lushun Economic Development Zone Dalian Hao Yang No. 1 North Street Patentee after: CRRC DALIAN ELECTRIC TRACTION R & D CENTER CO., LTD. Address before: 116052 Liaoning province Dalian City Lushun Economic Development Zone Dalian Hao Yang No. 1 North Street Patentee before: Co., Ltd of Bei Che Dalian Electric Traction R & D Center |