CN206743272U - A kind of vehicle-carrying communication controller - Google Patents
A kind of vehicle-carrying communication controller Download PDFInfo
- Publication number
- CN206743272U CN206743272U CN201720055740.4U CN201720055740U CN206743272U CN 206743272 U CN206743272 U CN 206743272U CN 201720055740 U CN201720055740 U CN 201720055740U CN 206743272 U CN206743272 U CN 206743272U
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- microcontroller
- vehicle
- power subsystem
- power
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- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model discloses a kind of vehicle-carrying communication controller, it is related to subway data communication system field, the device includes microcontroller, and microcontroller is electrically connected to each other with a CAN units, CAN units are connected with CAN, and microcontroller is provided with the RS232 interface being used for central server communication；Power subsystem, power subsystem input connection power supply unit, power subsystem output end are provided with the first filter circuit, the first filter circuit output end connection microcontroller；For carrying out the GPRS units of gsm wireless communication, GPRS units electrically connect with microcontroller and power subsystem；Power amplifier unit, power amplifier unit electrically connect with microcontroller.Vehicle-carrying communication controller in the utility model is by the way that the power supply chip of communication controler and power input circuit design are optimized, and Electro Magnetic Compatibility is good, electromagnetic interference is low, the EMC Requirements being suitable under the special closing operating mode of subway train.
Description
Technical field
It the utility model is related to subway data communication system field, and in particular to a kind of vehicle-carrying communication controller.
Background technology
Large scale construction and application with subway, requirement of the people to the security of train and convenience is also increasingly
Height, the construction of train communication control system also become increasingly complex, as indispensable logical between train data circuit and main frame
Believe part, the research and development of the vehicle-mounted communication controler of subway are increasingly becoming focus.
Also occur various vehicle-carrying communication service terminals and controller in the market, to realize subway train operation and make
The timely feedback of man-machine interaction and information during.Such as Chinese patent CN203313212, to provide for a kind of subway vehicle-mounted
Controller and the interface monitor equipment of Train Management system, have been connected power panel, RS485 communication boards with CPU by cpci bus
To form, A, B and grounding ports of RS485 communication boards are coupled with the corresponding ports of Train Management system or Vehicle Controller
On, the utility model can be facilitated technical staff to download and graphically divided with the communication information between on-line real time monitoring TMS and CC
The information off-line of institute's monitoring device is analysed, reduces the technical difficulty of fault diagnosis.
But prior art still suffers from following defect：
1st, the function of existing vehicle-carrying communication controller is more, and power is larger during work, exists in communication process larger
Electromagnetic interference, the Electro Magnetic Compatibility to vehicle equipment impact.
2nd, Train Parts and external environment produce interference to the Data Connectivity and communication quality of vehicle-carrying communication controller,
The problems such as easily causing disconnecting.
Utility model content
For defect present in prior art, the purpose of this utility model is to provide a kind of Electro Magnetic Compatibility good
Vehicle-carrying communication controller good, electromagnetic interference is low.
To achieve the above objectives, the utility model adopts the technical scheme that：
A kind of vehicle-carrying communication controller, including：
Microcontroller, the microcontroller are electrically connected to each other with a CAN units, and the CAN units are connected with CAN,
The microcontroller is provided with the RS232 interface being used for central server communication；
Power subsystem, the power subsystem input connect power supply unit, and the power subsystem output end is provided with the first filter
Wave circuit, the first filter circuit output end connect the microcontroller；
For carrying out the GPRS units of gsm wireless communication, the GPRS units and the microcontroller and the power supply list
Member electrical connection；
Power amplifier unit, the power amplifier unit electrically connect with the microcontroller.
On the basis of above-mentioned technical proposal, first filter circuit includes connecting the first of the power subsystem positive pole
Filter capacitor, the second filter capacitor of the connection power subsystem negative pole and the difference between the power subsystem both positive and negative polarity
Mould electric capacity and multiaperture ferrite magnetic bead wave filter.
On the basis of above-mentioned technical proposal, first filter capacitor and the second filter capacitor are grounded.
On the basis of above-mentioned technical proposal, the power subsystem includes a power supply chip, the BOOT of the power supply chip
The second filter circuit is provided between pin and PH pins.
On the basis of above-mentioned technical proposal, second filter circuit includes 2-4 electric capacity parallel with one another, and described the
Two filter circuit one end connect the power subsystem, other end ground connection.
On the basis of above-mentioned technical proposal, a photoelectric isolating circuit is provided between the CAN units and CAN.
On the basis of above-mentioned technical proposal, the microcontroller is provided with the I/O interfaces for being used for connecting with external equipment, institute
State the capacitor that I/O interfaces are provided with ground connection.
Compared with prior art, the utility model has the advantage of：
(1) the vehicle-carrying communication controller in the utility model is by by the power supply chip and power input of communication controler
Circuit design is optimized, and Electro Magnetic Compatibility is good, electromagnetic interference is low, is suitable under the special closing operating mode of subway train
EMC Requirements.
(2) the vehicle-carrying communication controller in the utility model is entered by the I/O message input and output to communication controler
Row filtering process, block extraneous electromagnetic signals to propagate the external wire harness of communication controler I/O mouths, made the number of communication controler
It is not easy to receive according to connectivity and communication quality and produces interference, avoid causing disconnecting problem, stability is strong.
Brief description of the drawings
Fig. 1 is the internal unit composition figure of vehicle-carrying communication controller in the utility model embodiment；
Fig. 2 is the circuit diagram of power subsystem and the first filter circuit in the utility model embodiment.
Embodiment
Embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Figure 1, the utility model embodiment provides a kind of vehicle-carrying communication controller, including：
Microcontroller, the microcontroller are electrically connected to each other with a CAN units, and the CAN units are connected with CAN,
The microcontroller is provided with the RS232 interface being used for central server communication；
Power subsystem, the power subsystem input connect power supply unit, and the power subsystem output end is provided with the first filter
Wave circuit, the first filter circuit output end connect the microcontroller；
For carrying out the GPRS units of gsm wireless communication, the GPRS units and the microcontroller and the power supply list
Member electrical connection；
Power amplifier unit, the power amplifier unit electrically connect with the microcontroller.
When the utility model vehicle-carrying communication controller works, provided by GPRS unit reception processing communication operations service provider
GPRS data and GSM session services；CAN signal transmission-receiving function is realized by CAN units, controls communication and the CAN of CAN network
The conversion of the wireless datas such as bus data and GSM and interact；By microprocessor processes each unit request of data demand, phase is realized
Each communication equipment of train should be controlled and realize the functions such as call, contact, alarm transmission.
As shown in Fig. 2 described in the first filter capacitor of first filter circuit including the connection power subsystem positive pole, connection
Second filter capacitor of power subsystem negative pole, differential mode capacitor and multiaperture ferrite magnetic between the power subsystem both positive and negative polarity
Pearl wave filter.
First filter capacitor and the second filter capacitor are grounded.
The power subsystem includes a power supply chip, and is provided between the BOOT pins and PH pins of the power supply chip
Two filter circuits.Electromagnetic interference signal can be reduced and be transmitted to subsequent conditioning circuit, reduction leads line-to-line crosstalk and takes communication controler out of
Outside.
Second filter circuit may include 2-4 electric capacity parallel with one another, and described second filter circuit one end connects institute
State power subsystem, other end ground connection.
A photoelectric isolating circuit can be set between the CAN units and CAN.Realize in the case of electric isolution, with
Light is that medium transmits signal, and input and output circuit can be isolated, and effectively suppression system noise, elimination can be grounded back
The interference on road.
The microcontroller is provided with the I/O interfaces for being used for connecting with external equipment, and the I/O interfaces are provided with the electricity of ground connection
Container.This set can block the electromagnetic interference signal that external wire harness propagation is carried out by communication controler I/O mouths, avoid logical
The distortion or the malfunction of communication controler occurred during letter.
The utility model is not only limited to above-mentioned preferred forms, and anyone can obtain under enlightenment of the present utility model
Go out other various forms of products, however, make any change in its shape or structure, it is every to have and the utility model phase
Same or close technical scheme, within its protection domain.
Claims (6)
- A kind of 1. vehicle-carrying communication controller, it is characterised in that including：Microcontroller, the microcontroller are electrically connected to each other with a CAN units, and the CAN units are connected with CAN, described Microcontroller is provided with the RS232 interface being used for central server communication；Power subsystem, the power subsystem input connect power supply unit, and the power subsystem output end is provided with the first filtered electrical Road, the first filter circuit output end connect the microcontroller, and first filter circuit includes connecting the power supply list First filter capacitor of first positive pole, the second filter capacitor of the connection power subsystem negative pole and located at the power subsystem just Differential mode capacitor and multiaperture ferrite magnetic bead wave filter between negative pole；For carrying out the GPRS units of gsm wireless communication, the GPRS units and the microcontroller and power subsystem electricity Connection；Power amplifier unit, the power amplifier unit electrically connect with the microcontroller.
- 2. vehicle-carrying communication controller as claimed in claim 1, it is characterised in that：First filter capacitor and the second filtered electrical Rong Jun is grounded.
- 3. vehicle-carrying communication controller as claimed in claim 1, it is characterised in that：The power subsystem includes a power supply chip, The second filter circuit is provided between the BOOT pins and PH pins of the power supply chip.
- 4. vehicle-carrying communication controller as claimed in claim 3, it is characterised in that：Second filter circuit includes 2-4 phase Mutually electric capacity in parallel, described second filter circuit one end connect the power subsystem, other end ground connection.
- 5. vehicle-carrying communication controller as claimed in claim 1, it is characterised in that：One is provided between the CAN units and CAN Photoelectric isolating circuit.
- 6. vehicle-carrying communication controller as claimed in claim 1, it is characterised in that：The microcontroller, which is provided with, to be used to set with outside The I/O interfaces of standby connection, the I/O interfaces are provided with the capacitor of ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720055740.4U CN206743272U (en) | 2017-01-16 | 2017-01-16 | A kind of vehicle-carrying communication controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720055740.4U CN206743272U (en) | 2017-01-16 | 2017-01-16 | A kind of vehicle-carrying communication controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206743272U true CN206743272U (en) | 2017-12-12 |
Family
ID=60556043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720055740.4U Active CN206743272U (en) | 2017-01-16 | 2017-01-16 | A kind of vehicle-carrying communication controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206743272U (en) |
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2017
- 2017-01-16 CN CN201720055740.4U patent/CN206743272U/en active Active
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