CN204069019U - For the communication gate of track traffic - Google Patents
For the communication gate of track traffic Download PDFInfo
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- CN204069019U CN204069019U CN201420394640.0U CN201420394640U CN204069019U CN 204069019 U CN204069019 U CN 204069019U CN 201420394640 U CN201420394640 U CN 201420394640U CN 204069019 U CN204069019 U CN 204069019U
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Abstract
The utility model provides a kind of communication gate for track traffic, comprise: general packet radio service GPRS transceiver, HDLC communication PHY interface, protocol conversion processor between GPRS agreement and HDLC agreement, wherein, protocol conversion processor is connected between GPRS transceiver and HDLC communication PHY interface.By the communication gate that the utility model provides, each equipment achieved in rail vehicle adopts HDLC communication bus to carry out transfer of data, GPRS technology is adopted to go to read the data in data transmission procedure, or when adopting GPRS technology to make to adopt the rail vehicle of HDLC communication bus to communicate with external equipment, provide a kind of DTU (Data Transfer unit) that HDLC wire transmission network and GPRS wireless-transmission network can be coupled together.
Description
Technical field
The utility model relates to technology of track traffic, particularly relates to a kind of communication gate for track traffic.
Background technology
High-Level Data Link Control (High-Level Data Link Control, be called for short HDLC), be one at Synchronization Network transmitting data, bit-oriented data link layer protocol.In recent years, HDLC communications protocol is widely used in data communication field, and is widely used in the Rail traffic network supervisory control systems such as railway locomotive, light rail, subway and terminal equipment thereof.The feature of HDLC communications protocol is transparent transmission, reliability is high, efficiency of transmission is high, can carry out duplex simultaneous transmission, multi-computer communication can be supported, each equipment in rail vehicle adopts HDLC communication bus to carry out transfer of data, ensure that reliability and the real-time of each devices communicating in each rail vehicle.
General packet radio service (General Packet Radio Service, being called for short GPRS) technology is as a kind of general packet radio technology, due to its high efficiency of transmission at a high speed or low speed data, Optimizing Network Resources, Radio Resource, the method for salary distribution be flexible etc. that advantage is often applied in the industrial field control fields such as Rail traffic network supervisory control system, for read rail vehicle each equipment in the data etc. of data transmission procedure.
But, in current field of track traffic, when each equipment in rail vehicle adopts HDLC communication bus to carry out transfer of data, when going to read the data in data transmission procedure according to GPRS technology, or when adopting GPRS technology to make to adopt the rail vehicle of HDLC communication bus to communicate with external equipment, lack a kind of DTU (Data Transfer unit) that HDLC wire transmission network and GPRS wireless-transmission network can be coupled together.
Utility model content
The utility model provides a kind of communication gate for track traffic, when adopting HDLC communication bus to carry out transfer of data in order to each equipment solved in prior art middle orbit vehicle, when adopting GPRS technology to go to read the data in data transmission procedure, or when adopting GPRS technology to make to adopt the rail vehicle of HDLC communication bus to communicate with external equipment, lack a kind of problem of the DTU (Data Transfer unit) that HDLC wire transmission network and GPRS wireless-transmission network can be coupled together.
The utility model provides a kind of communication gate for track traffic to comprise:
GPRS transceiver, HDLC communication PHY interface, the protocol conversion processor between GPRS agreement and HDLC agreement;
Described protocol conversion processor is connected between described GPRS transceiver and HDLC communication PHY interface;
Described GPRS transceiver, for receiving the first wireless signal that track traffic ground control station sends, and convert described first wireless signal to first digital signal and send to described protocol conversion processor, or, for receiving the second digital signal of described protocol conversion processor transmission and converting to be sent the second wireless signal meeting GPRS agreement to, and described second wireless signal is sent to described track traffic ground control station;
Described protocol conversion processor, for receiving described first digital signal, the HDLC network address is added in described first digital signal received and become three digital signal and send to described HDLC communication PHY interface, or, for detecting and reading described second digital signal in described HDLC communication PHY interface, then described second digital signal is sent to described GPRS transceiver;
Described HDLC communication PHY interface, for the described three digital signal received is resolved to the HDLC data meeting HDLC communication protocol, the equipment in rail vehicle is sent to by HDLC communication bus, or, for receiving the HDLC data of the equipment in rail vehicle by HDLC communication bus and resolving to described second digital signal.
Further, described GPRS transceiver comprises radio hardware interface (Antenna Hardware Interface, be called for short ANT) antenna, GPRS communication module and user identity identification (Subscriber Identity Module is called for short SIM) interface circuit;
Described GPRS communication module is connected between described ANT antenna and described SIM interface circuit;
Described SIM interface circuit, for providing a SIM slot, to insert SIM card;
Described ANT antenna, for receiving the first wireless signal that track traffic ground control station sends, and convert described first wireless signal to first analog electric signal, or, for receiving the second analog electric signal that described GPRS communication module sends, convert described second wireless signal to be sent to, and described second wireless signal is sent to described track traffic ground control station;
Described GPRS communication module, convert described first digital signal to for described first analog electric signal that detects in described ANT antenna, read the SIM string code in described SIM card, code of string code in described first digital signal and described SIM being gone here and there is compared, when comparison result is consistent, described first digital signal is sent to described protocol conversion processor, or, for receiving described second digital signal that described protocol conversion processor sends, and the SIM string code read in described SIM interface circuit, code of being gone here and there by described SIM adds in described second digital signal, convert the second digital signal after adding SIM string code to meet GPRS communication protocol described second analog electric signal, described second analog electric signal is sent to described ANT antenna.
Further, described protocol conversion processor comprises CPU, memory and HDLC interface;
Described CPU is connected between described memory and described HDLC interface, and described CPU is connected with described GPRS communication module;
Described HDLC interface is provided with input interface and output interface;
Described CPU, for receiving described first digital signal, the HDLC network address is added in described first digital signal received and become three digital signal, by described output interface, described three digital signal is sent to described HDLC communication PHY interface, or, stored in described memory, then described second digital signal is sent to described GPRS communication module for described second digital signal that read by described input interface in described HDLC communication PHY interface.
Further, described HDLC communication PHY interface comprises transmission interface and receiving interface;
Described transmission interface is connected with described input interface, and described receiving interface is connected with described output interface.
Further, described GPRS communication module comprises the first proposed standard 232 (Recommended Standard232 is called for short RS232) interface and GPRS subelement;
Described GPRS subelement is connected with a described RS232 interface;
Described GPRS subelement, convert described first digital signal to for described first analog electric signal that detects in described ANT antenna, read the SIM string code in described SIM card, code of string code in described first digital signal and described SIM being gone here and there is compared, when comparison result is consistent, described first digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, first digital signal of RS232 serial communication data stream format is sent to a described RS232 interface, or, for receiving the second digital signal of the RS232 serial communication data stream format that a described RS232 interface sends, convert the second digital signal of RS232 serial communication data stream format to digital signals format, and the SIM string code read in described SIM interface circuit, code of being gone here and there by described SIM adds in the second digital signal of digital signals format, convert the second digital signal of the digital signals format after interpolation SIM string code to meet GPRS communication protocol the second analog electric signal, second analog electric signal is sent to described ANT antenna,
A described RS232 interface, for receiving the first digital signal of RS232 serial communication data stream format, and send to described protocol conversion processor, or, for receiving the second digital signal of the RS232 serial communication data stream format that described protocol conversion processor sends, and send to described GPRS subelement.
Further, described protocol conversion processor also comprises the 2nd RS232 interface;
Described 2nd RS232 interface, is connected between described CPU and described GPRS communication module;
Described 2nd RS232 interface, for receiving the first digital signal of RS232 serial communication data stream format, first digital signal of RS232 serial communication data stream format is converted to the first digital signal of digital signals format, or, for receiving described second digital signal that described CPU sends, and described second digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, the second digital signal of RS232 serial communication data stream format is sent to a described RS232 interface.
Technique effect of the present utility model is: by providing one to include GPRS transceiver, the protocol conversion processor between GPRS agreement and HDLC agreement, and the communication gate for track traffic of HDLC communication PHY interface, wherein, protocol conversion processor is connected between GPRS transceiver and HDLC communication PHY interface, the wireless signal that GPRS transceivers track traffic ground control station sends, protocol conversion processor is sent to after converting digital signal to, protocol conversion processor sends to HDLC communication PHY interface after this digital signal is added the HDLC network address, resolved to the HDLC data meeting HDLC communication protocol again by HDLC communication PHY interface, finally send to the equipment in rail vehicle, and, the HDLC Data Analysis of the equipment in rail vehicle is become digital signal by HDLC communication PHY interface, protocol conversion processor sends to GPRS transceiver after this digital signal being detected, then converted to by GPRS transceiver meet GPRS agreement wireless signal after send to track traffic ground control station, each equipment achieved in rail vehicle adopts HDLC communication bus to carry out transfer of data, GPRS technology is adopted to go to read the data in data transmission procedure, or when adopting GPRS technology to make to adopt the rail vehicle of HDLC communication bus to communicate with external equipment, a kind of DTU (Data Transfer unit) that HDLC wire transmission network and GPRS wireless-transmission network can be coupled together is provided, the GPRS wireless signal that track traffic ground control station sends is converted into HDLC wire signal and sends to the equipment in rail vehicle, and the HDLC wire signal in railway vehicle device is converted into GPRS wireless signal and sends to track traffic ground control station.
Accompanying drawing explanation
The structural representation of a kind of communication gate for track traffic that Fig. 1 provides for the utility model embodiment one;
The structural representation of a kind of communication gate for track traffic that Fig. 2 provides for the utility model embodiment two;
The structural representation of a kind of communication gate for track traffic that Fig. 3 provides for the utility model embodiment three.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The structural representation of a kind of communication gate for track traffic that Fig. 1 provides for the utility model embodiment one, as shown in Figure 1, the communication gate of the present embodiment can comprise: GPRS transceiver 101, protocol conversion processor 103 between HDLC communication PHY interface 102, GPRS agreement and HDLC agreement; Wherein, protocol conversion processor 103 is connected between GPRS transceiver 101 and HDLC communication PHY interface 102.
GPRS transceiver 101, for receiving the first wireless signal that track traffic ground control station sends, and convert the first wireless signal to first digital signal and send to protocol conversion processor 103, or, for receiving the second digital signal of protocol conversion processor 103 transmission and converting to be sent the second wireless signal meeting GPRS agreement to, and the second wireless signal is sent to track traffic ground control station.
Protocol conversion processor 103, for receiving the first digital signal, the HDLC network address is added in the first digital signal received and become three digital signal and send to HDLC communication PHY interface 102, or, for detecting and reading the second digital signal in HDLC communication PHY interface 102, then the second digital signal is sent to GPRS transceiver 101.
HDLC communication PHY interface 102, for the three digital signal received being resolved to the HDLC data meeting HDLC communication protocol, the equipment in rail vehicle is sent to by HDLC communication bus, or, for receiving the HDLC data of the equipment in rail vehicle by HDLC communication bus and resolving to described second digital signal.
For example, when track traffic ground control station sends the first wireless signal to the communication gate that the utility model provides, GPRS transceiver 101 receives the first wireless signal that track traffic ground control station sends, and then GPRS transceiver 101 converts the first wireless signal to first digital signal and sends to protocol conversion processor 103; The HDLC network address is added in the first digital signal received by protocol conversion processor 103 to be become three digital signal and sends to HDLC communication PHY interface 102; Then, the three digital signal received is resolved to the HDLC data meeting HDLC communication protocol by HDLC communication PHY interface 102, and sends to the equipment in rail vehicle by HDLC communication bus; Thus, complete the process that GPRS wireless signal is converted into HDLC wire signal.HDLC communication PHY interface 102 can receive the HDLC data of the equipment in rail vehicle by HDLC communication bus, and resolves to described second digital signal; Protocol conversion processor 103 detects and reads the second digital signal in HDLC communication PHY interface 102, then the second digital signal is sent to GPRS transceiver 101; GPRS transceiver 101 receives the second digital signal of protocol conversion processor 103 transmission and converts to be sent the second wireless signal meeting GPRS agreement to, and the second wireless signal is sent to track traffic ground control station; Thus, complete the process that HDLC wire signal is converted into GPRS wireless signal.
Wherein, protocol conversion processor 103 has been responsible for the work schedule of HDLC communication PHY interface 102, and charge of overseeing voltage, control software design dog and working power is provided, in the present embodiment, protocol conversion processor 103 can adopt AT91SAM7A3 processor.
Protocol conversion processor 103 by providing protocol conversion processor 103, the HDLC communication PHY interface 102 between GPRS transceiver 101, GPRS agreement and HDLC agreement, and is connected between GPRS transceiver 101 and HDLC communication PHY interface 102 by the present embodiment; When track traffic ground control station sends the first wireless signal to the communication gate that the utility model provides, GPRS wireless signal is converted into HDLC wire signal, and sends to the equipment in rail vehicle; When HDLC communication PHY interface 102 receives the HDLC data of the equipment in rail vehicle, HDLC wire signal is converted into GPRS wireless signal, and sends to track traffic ground control station; Thus, a kind of communication gate being used for track traffic that HDLC wire transmission network and GPRS wireless-transmission network can be coupled together is provided.Each equipment in rail vehicle adopts HDLC communication bus to carry out transfer of data, the DTU (Data Transfer unit) that a kind of HDLC wire transmission network and GPRS wireless-transmission network couple together is provided, when adopting GPRS technology to go to read the data in data transmission procedure, or when adopting GPRS technology to make to adopt the rail vehicle of HDLC communication bus to communicate with external equipment, the GPRS wireless signal that track traffic ground control station sends can be converted into HDLC wire signal and send to the equipment in rail vehicle, and the HDLC wire signal in railway vehicle device is converted into GPRS wireless signal and sends to track traffic ground control station.Meanwhile, adopt GPRS technology to be connected with HDLC communication PHY interface, direct and ground system carries out communication by GPRS technology can to make rail vehicle, in monitoring of tools, have high degree of flexibility.
The structural representation of a kind of communication gate for track traffic that Fig. 2 provides for the utility model embodiment two.As shown in Figure 2, the present embodiment is on the basis of above-described embodiment, and further, GPRS transceiver 101 comprises ANT antenna 2101, GPRS communication module 2102 and SIM interface circuit 2103, wherein, GPRS communication module 2102 is connected between ANT antenna 2101 and SIM interface circuit 2103; Protocol conversion processor 103 comprises CPU 2301, memory 2302 and HDLC interface 2303, wherein, CPU 2301 is connected between memory 2302 and HDLC interface 2303, and, CPU 2301 is connected with GPRS communication module 2102, and HDLC interface 2303 is provided with input interface 2331 and output interface 2332; HDLC communication PHY interface 102 comprises transmission interface 2201 and receiving interface 2202, and wherein, transmission interface 2201 is connected with input interface 2331, and receiving interface 2202 is connected with output interface 2332.
SIM interface circuit 2103, for providing a SIM slot, to insert SIM card.
ANT antenna 2101, for receiving the first wireless signal that track traffic ground control station sends, and convert the first wireless signal to first analog electric signal, or, for receiving the second analog electric signal that GPRS communication module 2102 sends, convert the second wireless signal to be sent to, and the second wireless signal is sent to track traffic ground control station;
GPRS communication module 2102, convert the first digital signal to for the first analog electric signal of detecting in ANT antenna 2101, SIM string code in reading SIM card, code of string code in first digital signal and SIM being gone here and there is compared, when comparison result is consistent, first digital signal is sent to protocol conversion processor 103, or, for receiving the second digital signal that protocol conversion processor 103 sends, and the SIM string code read in SIM interface circuit 2103, code of being gone here and there by SIM adds in the second digital signal, convert the second digital signal after adding SIM string code to meet GPRS communication protocol the second analog electric signal, second analog electric signal is sent to ANT antenna.
CPU 2301, for receiving the first digital signal, the HDLC network address is added in the first digital signal received and becomes three digital signal, by output interface 2332, three digital signal is sent to HDLC communication PHY interface 102, or, stored in memory 2302, then the second digital signal is sent to GPRS communication module 2102 for the second digital signal of being read by input interface 2331 in HDLC communication PHY interface 102.
For example, when track traffic ground control station sends the first wireless signal to the communication gate that the utility model provides, ANT antenna 2101 receives the first wireless signal that track traffic ground control station sends, and converts the first wireless signal to first analog electric signal; GPRS communication module 2102 detects the first analog electric signal in ANT antenna 2101 and converts the first digital signal to, then the SIM string code in reading SIM card, code of string code in first digital signal and SIM being gone here and there is compared, authentication to the first wireless signal when going to realize GPRS access network, if comparison result is consistent, then the first digital signal is sent to protocol conversion processor 103; CPU 2301 receives the first digital signal, and being added in the first digital signal received the HDLC network address becomes three digital signal, then by output interface 2332, three digital signal is sent to HDLC communication PHY interface 102; HDLC communication PHY interface 102 receives three digital signal by receiving interface 2202, then three digital signal is resolved to the HDLC data meeting HDLC communication protocol, is sent to the equipment in rail vehicle by HDLC communication bus; Thus, complete the process that GPRS wireless signal is converted into HDLC wire signal.
HDLC communication PHY interface 102 receives the HDLC data of the equipment in rail vehicle by HDLC communication bus and resolves to the second digital signal, sends CPU 2301 to by transmission interface 2201; CPU 2301 reads the second digital signal in HDLC communication PHY interface 102 by input interface 2331 and stored in memory 2302, reads for protocol conversion processor 103, then the second digital signal is sent to GPRS communication module 2102; GPRS communication module 2102 receives the second digital signal that protocol conversion processor 103 sends, and the SIM string code read in SIM interface circuit 2103, code of being gone here and there by SIM adds in the second digital signal, convert the second digital signal after adding SIM string code to meet GPRS communication protocol the second analog electric signal, the second analog electric signal is sent to ANT antenna; ANT antenna 2101, receives the second analog electric signal that GPRS communication module 2102 sends, converts the second wireless signal to be sent to, and the second wireless signal is sent to track traffic ground control station; Thus, complete the process that HDLC wire signal is converted into GPRS wireless signal.
Wherein, protocol conversion processor 103 has been responsible for the work schedule of HDLC communication PHY interface 102 and HDLC interface 2303, and charge of overseeing voltage, control software design dog and provide working power, in the present embodiment, protocol conversion processor 103 can adopt AT91SAM7A3 processor.
The present embodiment is on the basis of above-described embodiment, by ANT antenna, GPRS communication module and SIM interface circuit are arranged on GPRS transceiver, by CPU, memory and HDLC interface are arranged in protocol conversion processor, and input interface and output interface are set on HDLC interface, HDLC communication PHY interface arranges transmission interface and receiving interface, string code in digital signal and the SIM in SIM card gone here and there code in GPRS communication module 2102 to compare, when comparison result is consistent, digital signal is sent to protocol conversion processor 103, and after GPRS communication module 2102 receives the digital signal of protocol conversion processor 103 transmission, code of being gone here and there by SIM in SIM card adds in digital signal, send to ANT antenna converting analog electric signal to.Thus, while the mutual conversion having carried out GPRS wireless signal and HDLC wire signal, ensure that fail safe when signal is changed.
The structural representation of a kind of communication gate for track traffic that Fig. 3 provides for the utility model embodiment three.As shown in Figure 3, the present embodiment is on the basis of above-described embodiment, and further, GPRS communication module 2102 comprises a RS232 interface 2121 and GPRS subelement 2122, and wherein, GPRS subelement 2122 is connected with a RS232 interface 2121; Protocol conversion processor 103 also comprises the 2nd RS232 interface 2304, and wherein, the 2nd RS232 interface 2304 is connected between CPU 2301 and GPRS communication module 2102.
GPRS subelement 2122, convert the first digital signal to for the first analog electric signal of detecting in ANT antenna 2101, SIM string code in reading SIM card, code of string code in first digital signal and SIM being gone here and there is compared, when comparison result is consistent, first digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, first digital signal of RS232 serial communication data stream format is sent to a RS232 interface 2121, or, for receiving the second digital signal of the RS232 serial communication data stream format that a RS232 interface 2121 sends, convert the second digital signal of RS232 serial communication data stream format to digital signals format, and the SIM string code read in SIM interface circuit 2103, code of being gone here and there by SIM adds in the second digital signal of digital signals format, convert the second digital signal of the digital signals format after interpolation SIM string code to meet GPRS communication protocol the second analog electric signal, second analog electric signal is sent to ANT antenna 2101,
One RS232 interface 2121, for receiving the first digital signal of RS232 serial communication data stream format, and send to protocol conversion processor 103, or, for receiving the second digital signal of the RS232 serial communication data stream format that protocol conversion processor 103 sends, and send to GPRS subelement 2122.
2nd RS232 interface 2304, for receiving the first digital signal of RS232 serial communication data stream format, first digital signal of RS232 serial communication data stream format is converted to the first digital signal of digital signals format, or, for receiving the second digital signal that CPU 2301 sends, and the second digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, the second digital signal of RS232 serial communication data stream format is sent to a RS232 interface 2121.
For example, when track traffic ground control station sends the first wireless signal to the communication gate that the utility model provides, ANT antenna 2101 receives the first wireless signal that track traffic ground control station sends, and converts the first wireless signal to first analog electric signal; GPRS subelement 2122 in GPRS communication module 2102 detects the first analog electric signal in ANT antenna 2101 and converts the first digital signal to, SIM string code in reading SIM card, code of string code in first digital signal and SIM being gone here and there is compared, authentication to the first wireless signal when going to realize GPRS access network, when comparison result is consistent, first digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, the first digital signal of RS232 serial communication data stream format is sent to a RS232 interface 2121; One RS232 interface 2121 receives the first digital signal of RS232 serial communication data stream format, and sends to protocol conversion processor 103; The 2nd RS232 interface 2304 in protocol conversion processor 103 receives the first digital signal of RS232 serial communication data stream format, the first digital signal of RS232 serial communication data stream format is converted to the first digital signal of digital signals format; First digital signal of CPU 2301 receiving digital signals form, the HDLC network address is added in the first digital signal of the digital signals format received and become three digital signal, then by output interface 2332, three digital signal is sent to HDLC communication PHY interface 102; HDLC communication PHY interface 102 receives three digital signal by receiving interface 2202, then three digital signal is resolved to the HDLC data meeting HDLC communication protocol, is sent to the equipment in rail vehicle by HDLC communication bus; Thus, complete the process that GPRS wireless signal is converted into HDLC wire signal.
HDLC communication PHY interface 102 receives the HDLC data of the equipment in rail vehicle by HDLC communication bus and resolves to the second digital signal, sends CPU 2301 to by transmission interface 2201, CPU 2301 reads the second digital signal in HDLC communication PHY interface 102 by input interface 2331 and stored in memory 2302, reads for protocol conversion processor 103, then the second digital signal is sent to the 2nd RS232 interface 2304, 2nd RS232 interface 2304, receive the second digital signal that CPU 2301 sends, and the second digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, the second digital signal of RS232 serial communication data stream format is sent to the RS232 interface 2121 in GPRS communication module 2102, one RS232 interface 2121, for receiving the second digital signal of the RS232 serial communication data stream format that protocol conversion processor 103 sends, and sends to GPRS subelement 2122, GPRS subelement 2122 in GPRS communication module 2102, receive the second digital signal of the RS232 serial communication data stream format that a RS232 interface 2121 sends, convert the second digital signal of RS232 serial communication data stream format to digital signals format, and the SIM string code read in SIM interface circuit 2103, code of being gone here and there by SIM adds in the second digital signal of digital signals format, convert the second digital signal of the digital signals format after interpolation SIM string code to meet GPRS communication protocol the second analog electric signal, second analog electric signal is sent to ANT antenna 2101, ANT antenna 2101, receives the second analog electric signal, and converts the second wireless signal to be sent to, and the second wireless signal is sent to track traffic ground control station, thus, complete the process that HDLC wire signal is converted into GPRS wireless signal.
Wherein, protocol conversion processor 103 has been responsible for the work schedule of HDLC communication PHY interface 102, HDLC interface 2303 and RS232 interface, and charge of overseeing voltage, control software design dog and working power is provided, in the present embodiment, protocol conversion processor 103 can adopt AT91SAM7A3 processor.
The present embodiment is on the basis of above-described embodiment, one RS232 interface and GPRS subelement have been arranged in GPRS communication module, wherein GPRS subelement is connected with a RS232 interface, protocol conversion processor is above-mentioned is provided with the 2nd RS232 interface, and the 2nd RS232 interface is connected between CPU and GPRS communication module, RS232 interface is for receiving and send the digital signal of RS232 serial communication data stream format, and can the signal of RS232 serial communication data stream format be converted to digital signal, digital signal is resolved to the signal of the RS232 serial communication data stream format meeting RS232 communications protocol.Thus completing the DTU (Data Transfer unit) providing a kind of HDLC wire transmission network and GPRS wireless-transmission network to couple together, GPRS wireless signal is converted into HDLC wire signal and sends to the equipment in rail vehicle, and HDLC wire signal is converted into GPRS wireless signal and sends on the basis of track traffic ground control station, simultaneously, what adopt between RS232 Interface realization interface is connected in series, without the need to the GPRS equipment that complexity is high, reduce cost.Further, the present embodiment adopts GPRS technology to be connected with HDLC communication PHY interface, and direct and ground system carries out communication by GPRS technology can to make rail vehicle, in monitoring of tools, have high degree of flexibility.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. for a communication gate for track traffic, it is characterized in that, comprising: general packet radio service GPRS transceiver, High-Level Data Link Control HDLC communication PHY interface, the protocol conversion processor between GPRS agreement and HDLC agreement;
Described protocol conversion processor is connected between described GPRS transceiver and described HDLC communication PHY interface;
Described GPRS transceiver, for receiving the first wireless signal that track traffic ground control station sends, and convert described first wireless signal to first digital signal and send to described protocol conversion processor, or, for receiving the second digital signal of described protocol conversion processor transmission and converting to be sent the second wireless signal meeting GPRS agreement to, and described second wireless signal is sent to described track traffic ground control station;
Described protocol conversion processor, for receiving described first digital signal, the HDLC network address is added in described first digital signal received and become three digital signal and send to described HDLC communication PHY interface, or, for detecting and reading described second digital signal in described HDLC communication PHY interface, then described second digital signal is sent to described GPRS transceiver;
Described HDLC communication PHY interface, for the described three digital signal received is resolved to the HDLC data meeting HDLC communication protocol, the equipment in rail vehicle is sent to by HDLC communication bus, or, for receiving the HDLC data of the equipment in rail vehicle by HDLC communication bus and resolving to described second digital signal.
2. communication gate according to claim 1, is characterized in that, described GPRS transceiver comprises radio hardware interface ANT antenna, GPRS communication module and user identity identification SIM interface circuit;
Described GPRS communication module is connected between described ANT antenna and described SIM interface circuit;
Described SIM interface circuit, for providing a SIM slot, to insert SIM card;
Described ANT antenna, for receiving the first wireless signal that track traffic ground control station sends, and convert described first wireless signal to first analog electric signal, or, for receiving the second analog electric signal that described GPRS communication module sends, convert described second wireless signal to be sent to, and described second wireless signal is sent to described track traffic ground control station;
Described GPRS communication module, convert described first digital signal to for described first analog electric signal that detects in described ANT antenna, read the SIM string code in described SIM card, code of string code in described first digital signal and described SIM being gone here and there is compared, when comparison result is consistent, described first digital signal is sent to described protocol conversion processor, or, for receiving described second digital signal that described protocol conversion processor sends, and the SIM string code read in described SIM interface circuit, code of being gone here and there by described SIM adds in described second digital signal, convert the second digital signal after adding SIM string code to meet GPRS communication protocol described second analog electric signal, described second analog electric signal is sent to described ANT antenna.
3. communication gate according to claim 2, is characterized in that, described protocol conversion processor comprises CPU, memory and HDLC interface;
Described CPU is connected between described memory and described HDLC interface, and described CPU is connected with described GPRS communication module;
Described HDLC interface is provided with input interface and output interface;
Described CPU, for receiving described first digital signal, the HDLC network address is added in described first digital signal received and become three digital signal, by described output interface, described three digital signal is sent to described HDLC communication PHY interface, or, stored in described memory, then described second digital signal is sent to described GPRS communication module for described second digital signal that read by described input interface in described HDLC communication PHY interface.
4. communication gate according to claim 3, is characterized in that, described HDLC communication PHY interface comprises transmission interface and receiving interface;
Described transmission interface is connected with described input interface, and described receiving interface is connected with described output interface.
5. the communication gate according to claim 3 or 4, is characterized in that, described GPRS communication module comprises the first proposed standard RS232 interface and GPRS subelement;
Described GPRS subelement is connected with a described RS232 interface;
Described GPRS subelement, convert described first digital signal to for described first analog electric signal that detects in described ANT antenna, read the SIM string code in described SIM card, code of string code in described first digital signal and described SIM being gone here and there is compared, when comparison result is consistent, described first digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, first digital signal of RS232 serial communication data stream format is sent to a described RS232 interface, or, for receiving the second digital signal of the RS232 serial communication data stream format that a described RS232 interface sends, convert the second digital signal of RS232 serial communication data stream format to digital signals format, and the SIM string code read in described SIM interface circuit, code of being gone here and there by described SIM adds in the second digital signal of digital signals format, convert the second digital signal of the digital signals format after interpolation SIM string code to meet GPRS communication protocol the second analog electric signal, second analog electric signal is sent to described ANT antenna,
A described RS232 interface, for receiving the first digital signal of RS232 serial communication data stream format, and send to described protocol conversion processor, or, for receiving the second digital signal of the RS232 serial communication data stream format that described protocol conversion processor sends, and send to described GPRS subelement.
6. communication gate according to claim 5, is characterized in that, described protocol conversion processor also comprises the 2nd RS232 interface;
Described 2nd RS232 interface, is connected between described CPU and described GPRS communication module;
Described 2nd RS232 interface, for receiving the first digital signal of RS232 serial communication data stream format, first digital signal of RS232 serial communication data stream format is converted to the first digital signal of digital signals format, or, for receiving described second digital signal that described CPU sends, and described second digital signal is resolved to the RS232 serial communication data stream format meeting RS232 communications protocol, the second digital signal of RS232 serial communication data stream format is sent to a described RS232 interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420394640.0U CN204069019U (en) | 2014-07-17 | 2014-07-17 | For the communication gate of track traffic |
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| CN201420394640.0U CN204069019U (en) | 2014-07-17 | 2014-07-17 | For the communication gate of track traffic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376149A (en) * | 2014-07-17 | 2016-03-02 | 中车大连电力牵引研发中心有限公司 | Communication gateway for rail transit |
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2014
- 2014-07-17 CN CN201420394640.0U patent/CN204069019U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376149A (en) * | 2014-07-17 | 2016-03-02 | 中车大连电力牵引研发中心有限公司 | Communication gateway for rail transit |
| CN105376149B (en) * | 2014-07-17 | 2018-09-28 | 中车大连电力牵引研发中心有限公司 | Communication gate for rail traffic |
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Address after: 116045 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: 116045 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 |
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Granted publication date: 20141231 Effective date of abandoning: 20180928 |