CN103092805B - Serial data transmission system and method thereof - Google Patents
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- CN103092805B CN103092805B CN201110355731.4A CN201110355731A CN103092805B CN 103092805 B CN103092805 B CN 103092805B CN 201110355731 A CN201110355731 A CN 201110355731A CN 103092805 B CN103092805 B CN 103092805B
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Abstract
The present invention is about a kind of serial data transmission system and method thereof, and be applicable to a main frame and a mancarried device of network connection, this mancarried device connects a serial line unit.Main frame comprises a host computer control module, a data conversion module and one first communication module.Host computer control module produces and receives serial data, and data conversion module is connected between the first communication module and host computer control module, carries out the format exchange of serial data and network package data.First communication module then carries out the network package data exchange between data conversion module and mancarried device.Mancarried device is configured between main frame and serial line unit, and utilizes built-in bridge module to carry out the format exchange of serial data and network package data.The connection between main frame and serial line unit is set up with this.
Description
Technical field
The present invention relates to the interconnection technique of serial line unit, particularly relate to and cross over identical or different job platform, and serial data transmission system and the method for long distance connection serial line unit can be realized.
Background technology
In prior art, the mode that main frame controls serial line unit has two kinds:
First kind of way: serial line unit is connected to the serial port of desktop PC main frame.The operating system of main frame, by the driver of serial communication method and serial line unit, completes the connection between main frame and serial line unit.Namely user by the human interface software of installation exercise system, can control the action of serial line unit, and obtains the response data of serial line unit.
Second method: serial line unit is connected to the serial port of portable computer (as mobile computer), the operating system of portable computer, by the driver of serial communication method and serial line unit, completes the connection between portable computer and serial line unit.Portable computer is connected by network mode or telecommunication modes with main frame, and the software that portable computer and main frame configure be based on main frame, portable computer is auxiliary master-slave mode software.User controls the running of mancarried device by the software control interface of main frame, indirectly controls serial line unit or obtains the response data of serial line unit.Or user directly controls serial line unit by the control inerface of the software of portable computer, and relevant necessary data is transferred to main frame, the data that namely main frame software provide according to portable computer carry out processing or analyzing.
But the inconvenience of aforesaid way is, in first method, the distance that main frame can be connected with serial line unit is limited, and practicality is not high.In the second way, though main frame can carry out serial communication with the mode of long distance and serial line unit, if but the operating system of portable computer was replaced, or portable computer is substituted for mancarried device (such as: panel computer or Smartphone), namely according to the operating system (or the mancarried device substituted) changed, corresponding driver and control software design must be installed, therefore need the cost of development of extra consumption control software design and driver.Further, if between main frame and serial line unit, when just must can carry out serial communication operation by the encryption and decryption operation of bilateral agreement, namely main frame cannot carry out remote communication by second method and serial line unit, and practicality greatly reduces.
Because the defect that the mode that above-mentioned existing main frame controls serial line unit exists, the present inventor is based on being engaged in the practical experience and professional knowledge that this type of product design manufacture enriches for many years, coordinate the utilization of scientific principle, actively in addition research and innovation, to founding a kind of new serial data transmission system and method thereof, the mode that existing main frame controls serial line unit can be improved, make it have more practicality.Through constantly research, design, through repeatedly studying sample and after improving, finally creating the present invention had practical value.
Summary of the invention
In view of this, the object of the invention is to, overcome existing main frame and control serial line unit Problems existing, and provide a kind of serial data transmission system and method thereof, technical matters to be solved is, identical or different job platform can be crossed over, and long distance connection serial line unit can be realized.
Object of the present invention and technical matters to be solved are realized by following technical scheme:
Disclosed serial data transmission system comprises a main frame and a mancarried device.Main frame comprises a host computer control module, a data conversion module and one first communication module.Mancarried device comprises a device control module, a bridge module and one second communication module.
Host computer control module in order to send one first serial data, and in order to receive one second serial data.Data conversion module in order to obtaining and to change the first serial data into a first network packet data, and transfers to host computer control module in order to change a second network packet data into the second serial data.First communication module in order to transmit first network packet data to mancarried device, and receives the second network packet data of mancarried device transmission, and by second network packet data transmission to data conversion module.
Second communication module in order to obtain the first network packet data of the first communication module transmission, and in order to by second network packet data transmission to the first communication module.Bridge module in order to changing first network packet data into the first serial data, and transfers to the second communication module in order to change the second serial data into second network packet data.Serial port link block in order to obtain bridge module transmission the first serial data to transfer to a serial line unit, and in order to obtain serial line unit passback the second serial data to transfer to bridge module.
Disclosed serial data transmission method, be applicable to a main frame and a mancarried device of network connection, and a mancarried device serial line unit connected in series, the method comprises: the host computer control module providing main frame, to be used for transmission one first serial data and in order to receive one second serial data; By a data conversion module of main frame, in order to change the first serial data into a first network packet data, and in order to obtain one second network packet data is converted back the second serial data; Set up one first communication module of main frame to be connected with the network of one second communication module of mancarried device, wherein, the first network packet data that second communication module exports in order to receive the first communication module, the second network packet data that the first communication module exports in order to receive the second communication module; By a bridge module of mancarried device, convert back the first serial data in order to the first network packet data obtained by the second communication module, and in order to the second serial data is converted to second network packet data; And by a serial port link block of mancarried device, with the first serial data transmission that bridge module is transmitted to serial line unit, and in order to transmit serial line unit the second serial data to bridge module.
Disclosed serial data transmission system and method, time further, its data conversion module can comprise a virtual serial port administration module and a serial and network data modular converter.Virtual serial port administration module is in order to set up a virtual serial port of corresponding serial line unit, and the first serial data sent for Receiving Host control module and confession transmission second serial data are to host computer control module.Serial and network data modular converter are in order to change the first serial data into first network packet data, and transmit first network packet data and give the first communication module, and in order to change first communication module receive second network packet data be the second serial data, and guide the second serial data to virtual serial port.
Beneficial effect of the present invention is: main frame can not limit distance join serial line unit.Secondly, main frame can not be limited to the operating system of mancarried device and directly control serial line unit, does not therefore need extra exploitation to be installed on control software design and the driver of mancarried device, and then reduces the cost of development of software and driver.And, the operating system of mancarried device can not be limited to by main frame and directly control the characteristic of serial line unit, the serial communication operation that the encryption and decryption operation can implementing agreement by both party between main frame and serial line unit just can be carried out, therefore the practicality of greatly elevator system.
Disclosed system and method, can reach the object expanding serial port device on heterogeneous platform.Via present system and method, the mancarried device different from the operating system of main frame, can connect sequence to port device and main frame, is responsible for the data transmission between bridge joint main frame and serial port device.Even if must by the transmission mode of encryption and decryption between main frame and serial port device, and when mancarried device not having encryption and decryption functions, present system and method still can allow mancarried device and serial port device normal operation, reach the object that Heterogeneous systems expands easily.
Accompanying drawing explanation
Fig. 1 illustrates the system architecture schematic diagram of the embodiment of the present invention;
Fig. 2 illustrates another system architecture schematic diagram of the embodiment of the present invention; And
Fig. 3 illustrates the serial data transmission method schematic flow sheet of the embodiment of the present invention.
[main element symbol description]
10 main frame 11 host computer control module
12 data conversion module 121 virtual serial port administration modules
122 virtual serial port 123 serials and network data modular converter
13 first communication module 20 mancarried devices
21 device control module 22 bridge modules
23 second communication module 24 serial port link blocks
241 serial port 30 serial line units
S110-S150 step
Embodiment
For setting forth the present invention further for the technological means reaching predetermined goal of the invention and take and its effect, below in conjunction with accompanying drawing and preferred embodiment, the serial data transmission system propose foundation the present invention and the embodiment of method, structure, feature and effect thereof, be described in detail as follows.
First please refer to the system architecture schematic diagram that Fig. 1 illustrates the embodiment of the present invention.This system comprises a main frame 10 (Host Device) and a mancarried device 20 (Portable Device), and more than one serial line unit 30 (Serial Device) is connected on the serial port 241 (Serial Port) of mancarried device 20.Wherein, the specification of serial port comprises RS-232, RS-422, RS-485, or further comprises the connectivity port meeting USB (universal serial bus) (Universal Serial Bus, USB) specification.
Main frame 10 comprises a host computer control module 11 (Host Control Module), a data conversion module 12 (Data Convert Module) and one first communication module (First Communicate Module) 13.User can by the human-computer interface control host computer control module 11 of main frame 10, and host computer control module 11 sends one first serial data controlling or connect serial line unit 30.
This first serial data can be received by data conversion module 12, and is converted to a first network packet data, and receives the second network packet data from mancarried device 20, and is converted to this second serial data to be transferred to host computer control module 11.In one embodiment, data conversion module 12 is combined as example with a virtual serial port administration module 121 and a serial and network data modular converter 123, but the present invention is not as limit.
Virtual serial port administration module 121 is in order to set up the virtual serial port 122 of corresponding serial line unit 30.User controls virtual serial port administration module 121 by host computer control module 11, and set up virtual serial port 122, or user is by the man-machine interface (Fig. 1 does not illustrate) of virtual serial port administration module 121, controls virtual serial port administration module 121 and set up virtual serial port 122.
Virtual serial port 122 receives above-mentioned first serial data.Serial and network data modular converter 123 are connected to virtual serial port 122 and above-mentioned first communication module 13, and the first serial data that virtual serial port 122 receives can be converted to the first network packet data meeting network transmission format, then by first network packet data transmission to the first communication module 13.First network packet data can be transferred to mancarried device 20 by cable network or wireless network mode by the first communication module 13.
Mancarried device 20 comprises one second communication module 23 (Second Communicate Module), a bridge module 22 (Bridge Module) and a serial port link block 24 (Serial Connect Module).
Second communication module 23 in order to receive above-mentioned first network packet data, and transmits it to bridge module 22.First network packet data can be converted back the first serial data of the data layout meeting serial communication mode by bridge module 22, and transmits it to serial port link block 24.Serial port link block 24 connects serial line unit 30 by serial port 241 again, and the first serial data is directly transferred to serial line unit 30.Serial line unit 30 can perform respective action according to the first serial data, namely directly controls serial line unit 30 as host computer control module 11.
On the other hand, when serial line unit 30 responds main frame 10, produce one second serial data.This second serial data by the serial port 241 of mancarried device 20 receive by serial port link block 24.Second serial data can be transferred to bridge module 22 by serial port link block 24.Second serial data can be converted to the second network packet data of the data layout meeting Internet Transmission by bridge module 22, and transmits it to the second communication module 23.Second communication module 23 can by second network packet data transmission to main frame 10.
First communication module 13 can receive this second network packet data and be transferred to data conversion module 12.Second network packet data can be converted to one second serial data by serial and network data modular converter 123, this second serial data meets serial communication data layout, and the second serial data is guided to virtual serial port 122, namely host computer control module 11 obtains the second serial data transmitted by virtual serial port 122.Namely the response data of serial line unit 30 is directly obtained as host computer control module 11.
Then, please refer to Fig. 2 illustrate another system architecture schematic diagram of the embodiment of the present invention, different from Fig. 1 be in, mancarried device 20 more comprises a device control module 21, in order to connecting bridge connection module 22, serial port link block 24 and the second communication module 23.User by the man-machine interface of device control module 21 (Fig. 2 does not illustrate), can input at least a string row port parameter, sets bridge module 22 and serial port link block 24 with this.Serial port link block 24 serial port parameter and serial line unit 30 can carry out serial communication according to this, and bridge module 22 carries out the conversion process of network package data and serial port 241 data according to this serial port parameter.This serial port parameter at least comprises serial port 241 number argument, serial datum format parameter, a transfer rate parameter and together bit parameter.
Further person, device control module 21 by the first communication module 13 and the second communication module 23 to be connected to host computer control module 11, and by serial port parameter transmission to host computer control module 11.Host computer control module 11 carrys out setting data modular converter 12 according to serial port parameter, and the serial port parameter set by data conversion module 12 meeting is to carry out the conversion process of network package data and serial port 241 data.
On the other hand, user also can input control data to serial line unit 30 by device control module 21, and this control data is transferred to host computer control module 11 by the first communication module 13 and the second communication module 23.Host computer control module 11 sends the first serial data according to control data again.
Wherein, host computer control module 11 and device control module 21 can via software (as can by main frame 10 and can by mancarried device 20 the application program that reads), hardware (arithmetic element as CPU (central processing unit) type) or the combination of software restraint (as by application program burning in a particular wafer) etc. arbitrary kenel implement.
Secondly, please refer to Fig. 3 illustrate the schematic flow sheet of the serial data transmission method of the embodiment of the present invention.The method is applicable to the serial port 241 that a main frame 10 and mancarried device 20, serial line unit 30 that network connects are installed in mancarried device 20, and the system diagram that Fig. 1 or Fig. 2 please be coordinated to illustrate is beneficial to understanding.Illustrate that main frame 10 links the flow process that serial line unit 30 carries out serial data transmission method at this, the method comprises:
There is provided a host computer control module 11 of main frame 10, to be used for transmission one first serial data and in order to receive one second serial data (step S110).As aforementioned, user, by the human-computer interface control host computer control module 11 of main frame 10, makes it send one first serial data.On the other hand, host computer control module 11 also can receive the second serial data converted back by data conversion module 12.
By a data conversion module 12 of main frame 10, in order to change the first serial data into a first network packet data, and in order to obtain one second network packet data is converted back the second serial data (step S120).
In this step, virtual serial port administration module 121 can set up the virtual serial port 122 of corresponding serial line unit 30.Virtual serial port administration module 121 obtains the first serial data by virtual serial port 122, and is converted into first network packet data.
On the other hand, serial and network data modular converter 123 can obtain second network packet data from the first communication module 13, and convert it back to the second serial data, transmit the second serial data to host computer control module 11 more afterwards by virtual serial port 122.
Set up one first communication module 13 of main frame 10 to be connected with the network of one second communication module 23 of mancarried device 20, wherein, the first network packet data that second communication module 23 exports in order to receive the first communication module 13, the second network packet data (step S130) that the first communication module 13 exports in order to receive the second communication module 23.But the first communication module 13 and the second communication module 23 carry out network by wired or wireless mode to be connected.
By a bridge module 22 of mancarried device 20, convert back the first serial data in order to the first network packet data obtained by the second communication module 23, and in order to the second serial data is converted to second network packet data (step S140).First network packet data, when obtaining the first network data of the second communication module transmission, can be converted back the first serial data by bridge module 22, and by the first serial data transmission of converting back to serial port link block 24.
On the other hand, bridge module 22 also can obtain the second serial data that serial port link block 24 is transmitted, and is converted into second network packet data, second network packet data transmission to the second communication module 23 will changed out more afterwards.
By a serial port link block 24 of mancarried device 20, with the first serial data transmission that bridge module 22 is transmitted to serial line unit 30, and in order to transmit the second serial data that serial line unit 30 provides to bridge module 22 (step S150).As aforementioned, serial port link block 24 can via serial port 241 by the first serial data transmission to serial line unit 30.But, when serial line unit 30 responds main frame 10, one second serial data can be produced.Serial port link block 24 can obtain the second serial data by the serial port 241 of mancarried device 20.
So as, mancarried device aspect, user by the man-machine interface of device control module 21 (not illustrating), can input at least a string row port parameter, sets bridge module 22 and serial port link block 24 with this.When step S150, serial port link block 24 can serial port parameter and serial line unit 30 carry out serial communication according to this.When step S140, bridge module 22 carries out the conversion process of network package data and serial port 241 data according to this serial port parameter.
Further person, device control module 21 by the first communication module 13 and the second communication module 23 to be connected to host computer control module 11, and by serial port parameter transmission to host computer control module 11.Host computer control module 11 carrys out setting data modular converter 12 according to serial port parameter, and data conversion module 12 can carry out the conversion process of network package data and serial port 241 data according to set serial port parameter.But this setting operation need complete before step S110 performs.
On the other hand, user also can input control data to serial line unit 30 by device control module 21, and this control data is transferred to host computer control module 11 by the first communication module 13 and the second communication module 23.Host computer control module 11 sends the first serial data according to control data again.User mode can carry out the time point that main control system 10 links serial line unit 30 whereby.
Serial data transmission method carries out implementation via main frame and mancarried device.Further person, main frame and mancarried device can store a computer program respectively, and perform serial data transmission method of the present invention after making main frame and mancarried device read this computer program.When computer program is loaded into by main frame and mancarried device and performs, this main frame and mancarried device become to participate in system of the present invention.When serial data transmission method is via general service processor implementation, general service processor is similar to the unique apparatus of application particular logic circuit, performs operation steps of the present invention.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when the method and technology contents that can utilize above-mentioned announcement are made a little change or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (13)
1. a serial data transmission system, is characterized in that this system comprises:
One main frame, it comprises:
One host computer control module, in order to send one first serial data, and in order to receive one second serial data;
One data conversion module, in order to obtain and to change this first serial data into a first network packet data, and is this second serial data in order to change a second network packet data and transfers to this host computer control module; And
One first communication module, in order to export this first network packet data, and receives this second network packet data and transfers to this data conversion module; And
One mancarried device, it comprises:
One second communication module, in order to obtain this first communication module transmission this first network packet data, and in order to by this second network packet data transmission to this first communication module;
One bridge module, in order to change this first network packet data for this first serial data, and is this second network packet data in order to change this second serial data and transfers to this second communication module; And
One serial port link block, in order to obtain this bridge module transmission this first serial data to transfer to a serial line unit, and in order to obtain this serial line unit passback this second serial data to transfer to this bridge module.
2. serial data transmission system as claimed in claim 1, it is characterized in that wherein this mancarried device more comprises a device control module to connect this bridge module and this serial port link block, in order at least a string row port parameter is set in this bridge module and this serial port link block, carry out communication for this serial port link block and this serial line unit, and carry out the conversion of network package data and serial port data according to this serial port parameter for this bridge module.
3. serial data transmission system as claimed in claim 2, is characterized in that wherein this serial port parameter at least comprises a serial portal number parameter, serial datum format parameter, a transfer rate parameter and together bit parameter.
4. serial data transmission system as claimed in claim 2, it is characterized in that wherein this device control module is to be connected to this host computer control module by this first communication module and this second communication module, and by this serial port parameter transmission to this host computer control module, this host computer control module is according to this this data conversion module of serial port setting parameter, and this data conversion module is the conversion carrying out network package data and serial port data according to this serial port parameter.
5. serial data transmission system as claimed in claim 1, is characterized in that wherein this data conversion module comprises:
One virtual serial port administration module, should the virtual serial port of serial line unit in order to set up a pair, for this first serial data of reception and for this second serial data of transmission;
One serial and network data modular converter, this first serial data received in order to change this virtual serial port is this first network packet data, and transmit this first network packet data and give this first communication module, and in order to change this second network packet data that this first communication module receives for this second serial data, to guide this second serial data to this virtual serial port.
6. serial data transmission system as claimed in claim 1, it is characterized in that wherein this mancarried device more comprises a device control module, this device control module be by this first communication module and this second communication module to control this host computer control module, send this first serial data to make this host computer control module.
7. serial data transmission system as claimed in claim 1, it is characterized in that wherein this serial port link block is connected to this serial line unit by a serial port, wherein this serial port is the connectivity port of the specification of USB (universal serial bus).
8. a serial data transmission method, be applicable to a main frame and a mancarried device of network connection, this mancarried device serial line unit connected in series, is characterized in that the method comprises:
There is provided a host computer control module of this main frame to be used for transmission one first serial data and in order to receive one second serial data;
By a data conversion module of this main frame, in order to change this first serial data into a first network packet data, and in order to obtain one second network packet data is converted back this second serial data;
Set up one first communication module of this main frame to be connected with the network of one second communication module of this mancarried device, wherein, this first network packet data that this second communication module exports in order to receive this first communication module, this second network packet data that this first communication module exports in order to receive this second communication module;
By a bridge module of this mancarried device, convert back this first serial data in order to this first network packet data obtained by this second communication module, and in order to this second serial data is converted to this second network packet data: and
By a serial port link block of this mancarried device, with this first serial data transmission that this bridge module is transmitted to this serial line unit, and in order to transmit this serial line unit this second serial data to this bridge module.
9. serial data transmission method as claimed in claim 8, it is characterized in that wherein this mancarried device comprises a device control module to connect this bridge module and this serial port link block, in order at least a string row port parameter is set in this bridge module and this serial port link block, carry out communication for this serial port link block and this serial line unit, and carry out the conversion of network package data and serial port data according to this serial port parameter for this bridge module.
10. serial data transmission method as claimed in claim 9, is characterized in that wherein this serial port parameter at least comprises a serial portal number parameter, serial datum format parameter, a transfer rate parameter and together bit parameter.
11. serial data transmission method as claimed in claim 9, it is characterized in that wherein this device control module is to be connected to this host computer control module by this first communication module and this second communication module, and by this serial port parameter transmission to this host computer control module, this host computer control module is according to this this data conversion module of serial port setting parameter, and this data conversion module is the conversion carrying out network package data and serial port data according to this serial port parameter.
12. serial data transmission method as claimed in claim 8, it is characterized in that wherein this data conversion module comprises a virtual serial port administration module and a serial and network data modular converter, and by the data conversion module by this main frame, in order to change this first serial data into a first network packet data, and comprise in order to this step obtain one second network packet data being converted back this second serial data:
Should the virtual serial port of serial line unit by a pair, to be used for receiving this first serial data, and be used for sending this second serial data of this serial and network data modular converter, this virtual serial port set up by this virtual serial port administration module; And
By this serial and network data modular converter, to change this first serial data of this virtual serial port administration module reception for this first network packet data, and this second network packet data received in order to change this first communication module is this second serial data.
13. serial data transmission method as claimed in claim 8, it is characterized in that wherein this mancarried device comprises a device control module, this device control module be by this first communication module and this second communication module to control this host computer control module, send this first serial data to make this host computer control module.
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| CN101221550A (en) * | 2008-01-30 | 2008-07-16 | 许新朋 | Method and chip for serial communication |
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| 一种新型感知系统来连结远方的家人;王惟正;《国立成功大学工业设计研究所硕士论文》;20110731;说明书第17-24页 * |
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