CN104579538A - Data transmission method and data transmission device - Google Patents
Data transmission method and data transmission device Download PDFInfo
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- CN104579538A CN104579538A CN201310467316.7A CN201310467316A CN104579538A CN 104579538 A CN104579538 A CN 104579538A CN 201310467316 A CN201310467316 A CN 201310467316A CN 104579538 A CN104579538 A CN 104579538A
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Abstract
The invention relates to the field of computers, discloses a data transmission method and a data transmission device, and aims to increase the data transmission speed and increase the accuracy of data transmission. The data transmission method comprises the following steps: saving data transmitted by a PC (Personal Computer) in an Ethernet port, wherein the format of the data is a combination of data content and data identifiers; analyzing a serial port number which determines a serial port to which the data content flows according to each data identifier; transmitting the data content to a serial port corresponding to the serial port number; and transmitting the data content to a controller corresponding to the serial port through the serial port, wherein the corresponding relation between the Ethernet port and serial ports is a one-to-many relation, and the corresponding relation between the serial port and the controller is a one-to-one relation. The data transmission method and the data transmission device are used for transmitting data.
Description
Technical field
The present invention relates to computer realm, particularly a kind of data transmission method and device thereof.
Background technology
At present, transfer of data has serial transmission and parallel transmission two kinds of modes.On network all data all with position (bit) for unit transmit, the unit of calculated data length is byte, and a byte (byte) is made up of 8 (bit).
Serial transmission is the mode of only transmission a data on the inherent physical channel of each chronomere, and transmitting terminal sends by turn, and receiving terminal receives by turn.Parallel transmission is the mode inherent physical channel of each chronomere transmitting simultaneously multiple data bit.Such as, ASCII(American StandardCode for Information Interchange, ASCII(American Standard Code for information interchange)) symbol of encoding represents by 8 bits, the symbol that then parallel transmission ASCII encodes just needs 8 transmission channels, and all data potential energies making an expression symbol are simultaneously along the transmission side by side of respective channel.The relative parallel transmission of serial transmission, only need a physical channel, track investment is little, is easy to realize, and be applicable to long-distance transmissions, but the speed of serial transmission is slower.Compared with serial transmission, parallel transmission needs multiple physical channel, and transmission speed is very fast, control mode is simple, the occasion being suitable for short distance, requiring transmission speed fast, but the confusion that transfer of data easily causes data is carried out in multiple physical channel, affects the accuracy of transfer of data simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of data transmission method and device thereof, can speeding up data transmission speed, the accuracy of transfer of data can be promoted simultaneously.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of data transmission method, are applied to PC(Personal Computer, personal computer) send data to controller, comprising:
In network interface, preserve the data that PC sends, the form of described data is the combination of data content and data identifier;
The serial ports number of the described data content flow direction is analyzed according to described data identifier;
Described data content is sent to described serial ports number corresponding serial ports;
Described data content is sent in the controller corresponding with described serial ports by described serial ports;
Wherein, the corresponding relation of described network interface and described serial ports is one-to-many, and the corresponding relation of described serial ports and described controller is one to one.
Embodiments of the present invention provide a kind of data transmission method, are applied to controller and send data to PC, and this data transmission method comprises:
In network interface, preserve the data that each controller is sent by corresponding serial ports, the form of described data is the combination of data content and data identifier;
The serial ports number of described data content outflow is analyzed according to described data identifier;
Data content after analyzing is uploaded to PC.
Embodiments of the present invention provide a kind of data transmission device, are applied to PC and send data to controller, and this data transmission device comprises:
Storage unit, for preserving the data that PC sends in network interface, the form of described data is the combination of data content and data identifier;
Analytic unit, for analyzing the serial ports number that described data content flows to according to described data identifier;
First transmitting element, for being sent to described serial ports number corresponding serial ports by described data content;
Second transmitting element, for being sent in the controller corresponding with described serial ports by described data content;
Wherein, the corresponding relation of described network interface and described serial ports is one-to-many, and the corresponding relation of described serial ports and described controller is one to one.
Embodiments of the present invention provide a kind of data transmission device, are applied to controller and send data to PC, and this data transmission device comprises:
Storage unit, for preserving the data that each controller is sent by corresponding serial ports in network interface, the form of described data is the combination of data content and data identifier;
Analytic unit, for analyzing the serial ports number that described data content flows out according to described data identifier;
Uploading unit, for being uploaded to PC by the data content after analysis.
Embodiment of the present invention in terms of existing technologies, first preserve the data that PC is sent by network interface, the serial ports number of the described data content flow direction is analyzed again according to described data identifier, finally described data content is sent to described serial ports number corresponding serial ports, these data are sent in the controller corresponding with this serial ports by serial ports again, generally, namely by a network interface is connected with multiple serial ports, data are made to carry out serial transmission between network interface and serial ports, parallel transmission is carried out between multiple serial ports, overcome the shortcoming of serial transmission and parallel transmission, a large amount of data can be avoided like this to transmit together at multiple serial ports, thus the phenomenon that generation data corruption is made mistakes, accelerate the speed of transfer of data on the whole, improve the accuracy of transfer of data simultaneously.In addition, single network interface is connected with multiple serial ports and carries out transfer of data, does not need many serial ports to be directly connected with PC, fundamentally avoids data line too much, overstocked, long, improve the utilance of hardware material.Simultaneously can also realize PC Long-distance Control, operating personnel can carry out corresponding experimental implementation, on the whole to providing more choices property of operating personnel on any PC having network to connect to network interface.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram of PC to controller transmission data of first embodiment of the invention;
Fig. 2 is the method flow schematic diagram of controller to PC transmission data of second embodiment of the invention;
Fig. 3 is the structural representation of the data transmission device of third embodiment of the invention;
Fig. 4 is the structural representation of the data transmission device of four embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in each execution mode of the present invention, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following execution mode and amendment, each claim of the application technical scheme required for protection also can be realized.
First embodiment of the invention provides a kind of data transmission method, is applied to personal computer PC and sends data to controller, and as shown in Figure 1, described data transmission method comprises the following steps:
Step 101, preserve in network interface PC send data.
The form of data is the combination of data content and data identifier.
Step 102, analyze the serial ports number of data flow according to data identifier.
To each data of preserving, analyze according to data identifier in each data.Data identifier is for indicating serial ports number, and this serial ports number determines which serial ports of data flow.The form of the data that PC sends is need the data content of transmission and the combination of data identifier.In the form of described data, described data identifier is positioned at the head of described data content; Or described data identifier is positioned at the afterbody of described data content.Describedly analyze according to described data identifier the serial ports number that described data content flows to and comprise: when described data identifier is serial ports, determine the serial ports number that described serial ports number flows to for described data content; Or according to the corresponding relation of the data identifier preset and described serial ports number, determine the serial ports number of described data flow.
Example, these data can be 90XC0, A0YC0, and B0ZC0, wherein, X, Y and Z can represent the data that transmitting terminal needs to send respectively, 90C0, A0C0 and B0C0 can for the data identifiers preset, and represent serial ports 1, serial ports 2 and serial ports 3 respectively, serial ports number is identified by data identifier.
Step 103, data to be sent to serial ports number corresponding serial ports.
Example, according to the result analyzed, data 90XC0, A0YC0 and B0ZC0 can be sent to serial ports 1, serial ports 2 and serial ports 3 respectively.
Step 104, serial ports receives the data that network interface sends, and data is sent in the controller corresponding with serial ports.
Data after receiving the data, first temporarily leave in the buffer memory of serial ports by each serial ports, and then send data to corresponding controller.It should be noted that, the annexation between serial ports and controller is relation one to one.
Each controller carries out the operation of being correlated with after receiving the data of corresponding serial ports transmission according to the information of carrying in data.Example, the information that tentation data 90XC0, A0YC0 and B0ZC0 carry is in a control system of water pump, for the switch control rule information of wherein three water pumps, 90XC0, A0YC0 and B0ZC0 represent being operating as of needing at present respectively and switch off the pump 1, open water pump 2, open water pump 3.Controller 1 can switch off the pump 1 according to data 90XC0, and controller 2 can open water pump 2 according to data A0YC0, and controller 3 can open water pump 3 according to data B0ZC0.
Embodiment of the present invention in terms of existing technologies, first preserve the data that PC is sent by network interface, the serial ports number of the described data content flow direction is analyzed again according to described data identifier, finally described data content is sent to described serial ports number corresponding serial ports, these data are sent in the controller corresponding with this serial ports by serial ports again, generally, namely by a network interface is connected with multiple serial ports, data are made to carry out serial transmission between network interface and serial ports, parallel transmission is carried out between multiple serial ports, a large amount of data can be avoided like this to transmit together at multiple serial ports, thus the phenomenon that generation data corruption is made mistakes, accelerate the speed of transfer of data on the whole, improve the accuracy of transfer of data simultaneously.In addition, single network interface is connected with multiple serial ports and carries out transfer of data, does not need many serial ports to be directly connected with PC, fundamentally avoids data line too much, overstocked, long, improve the utilance of hardware material.Simultaneously can also realize PC Long-distance Control, operating personnel can carry out corresponding experimental implementation, on the whole to providing more choices property of operating personnel on any PC having network to connect to network interface.
Second embodiment of the invention provides a kind of data transmission method, is applied to controller and sends data to PC, and as shown in Figure 2, described data transmission method comprises the following steps:
Step 201, controller send the data to serial ports.
The data that controller obtains after the data manipulation sent according to PC being completed send to the serial ports corresponding with this controller.Example, these data can be, close water pump 1 in control system of water pump, open water pump 2 and water pump 3.Controller 1 by switch off the pump 1 data send to the serial ports 1 corresponding with it, the data opening water pump 2 are sent to the serial ports 2 corresponding with it by controller 2, and the data opening water pump 3 are sent to the serial ports 3 corresponding with it by controller 3.
Step 202, serial ports receive and send data.
The form of data is the combination of data content and data identifier.
After serial ports receives data, first data are temporarily stored in serial ports buffer memory, and then data are sent downwards.
The data that step 203, preservation serial ports send.
In network interface, preserve the data that each controller is sent by corresponding serial ports, the form of described data is the combination of data content and data identifier.
Step 204, analyze data according to data identifier and flow out the serial ports number of content.
Step 204 specifically comprises: when described data identifier is serial ports, determines that described serial ports number is the serial ports number that described data content flows to; Or according to the corresponding relation of the data identifier preset and described serial ports number, determine the serial ports number of described data flow.
Concrete, step 203 and step 204 can be: first, the data that multiple serial ports sends temporarily preserved; Then, the data of preserving are analyzed, respectively for obtaining the control information that controller corresponding to each serial ports does; Concrete analytical method can reference example one, and the present invention does not repeat at this.Finally, by the transfer of data after having analyzed among network interface.Example, the data obtained after performing step 203 and step 204 can for serial ports 1 send switch off the pump 1, serial ports 2 sends opens the data opening water pump 3 that water pump 2 and serial ports 3 send.
Step 205, by analyze after data content be uploaded to PC.
Step 206, PC obtain data.
PC obtains the data that network interface sends, thus knows the control action that controller does.Example, PC can know that controller 1 closes the water pump 1 in control system of water pump, and controller 2 and controller 3 open water pump 2 in control system of water pump and water pump 3 respectively.
Embodiment of the present invention in terms of existing technologies, preservation and analytic function is added in network interface, this hold function may be used for the data of preserving serial ports transmission, this analytic function can analyze the flow direction of data according to data identifier, thus the specifying information that carries of the source of primary data and data, namely by a network interface is connected with multiple serial ports, data are made to carry out serial transmission between network interface and serial ports, parallel transmission is carried out between multiple serial ports, overcome the shortcoming of serial transmission and parallel transmission, improve the efficiency of transfer of data, accelerate the speed of transfer of data on the whole.
Third embodiment of the invention provides a kind of data transmission device 30, and this data transmission device 30 is applied to PC and sends data to controller, and as shown in Figure 3, this data transmission device 30 comprises:
Storage unit 301, for preserving the data that PC sends in network interface, the form of described data is the combination of data content and data identifier.
In the form of described data, described data identifier is positioned at the head of described data content; Or described data identifier is positioned at the afterbody of described data content.
Analytic unit 302, for analyzing the serial ports number that described data content flows to according to described data identifier.
First transmitting element 303, for being sent to described data content with described serial ports number corresponding serial ports.
Second transmitting element 304, for being sent to described data content in the controller corresponding with described serial ports.
It should be noted that, the corresponding relation of network interface and serial ports is one-to-many, and the corresponding relation of serial ports and controller is one to one.
Further, described analytic unit 302 specifically for: when described data identifier is serial ports, determine the serial ports number that described serial ports number flows to for described data content; Or according to the corresponding relation of the data identifier preset and described serial ports number, determine the serial ports number of described data flow.
Described second transmitting element 304 specifically for: described data content is received row cache of going forward side by side; Data content after buffer memory is sent in the controller corresponding with described serial ports.
Embodiment of the present invention in terms of existing technologies, by the data that storage unit preservation PC is sent by network interface, analytic unit analyzes the serial ports number of the described data content flow direction according to described data identifier, described data content is sent to described serial ports number corresponding serial ports by last transmitting element, these data are sent in the controller corresponding with this serial ports by serial ports again, a large amount of data can be avoided like this to transmit together at multiple serial ports, thus the phenomenon that generation data corruption is made mistakes, accelerate the speed of transfer of data on the whole, improve the accuracy of transfer of data simultaneously.In addition, single network interface is connected with multiple serial ports and carries out transfer of data, does not need many serial ports to be directly connected with PC, fundamentally avoids data line too much, overstocked, long, improve the utilance of hardware material.Simultaneously can also realize PC Long-distance Control, operating personnel can carry out corresponding experimental implementation, on the whole to providing more choices property of operating personnel on any PC having network to connect to network interface.
Four embodiment of the invention provides a kind of data transmission device 40, is applied to controller and sends data to PC, and this data transmission device 40 comprises:
Storage unit 401, for preserving the data that each controller is sent by corresponding serial ports in network interface, the form of described data is the combination of data content and data identifier.
Analytic unit 402, for analyzing the serial ports number that described data content flows out according to described data identifier.
Uploading unit 403, for being uploaded to PC by the data content after analysis.
Embodiment of the present invention in terms of existing technologies, storage unit is added in network interface, analytic unit and uploading unit, this storage unit may be used for the data of preserving serial ports transmission, this analytic unit can analyze the flow direction of data according to data identifier, thus the specifying information that carries of the source of primary data and data, finally by uploading unit, the data content after analysis is uploaded to PC, namely by a network interface is connected with multiple serial ports, data are made to carry out serial transmission between network interface and serial ports, parallel transmission is carried out between multiple serial ports, overcome the shortcoming of serial transmission and parallel transmission, improve the efficiency of transfer of data, accelerate the speed of transfer of data on the whole.
It is worth mentioning that, each module involved in present embodiment is logic module, and in actual applications, a logical block can be a physical location, also can be a part for a physical location, can also realize with the combination of multiple physical location.The operation principle of each physical location can describing in reference method embodiment, and the present invention does not repeat them here.In addition, in order to outstanding innovative part of the present invention, the unit not too close with solving technical problem relation proposed by the invention is not introduced in present embodiment, but this does not show the unit that there is not other in present embodiment.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (12)
1. a data transmission method, is applied to personal computer PC and sends data to controller, it is characterized in that, comprising:
In network interface, preserve the data that PC sends, the form of described data is the combination of data content and data identifier;
The serial ports number of the described data content flow direction is analyzed according to described data identifier;
Described data content is sent to described serial ports number corresponding serial ports;
Described data content is sent in the controller corresponding with described serial ports by described serial ports;
Wherein, the corresponding relation of described network interface and described serial ports is one-to-many, and the corresponding relation of described serial ports and described controller is one to one.
2. data transmission method according to claim 1, is characterized in that, in the form of described data, described data identifier is positioned at the head of described data content; Or
Described data identifier is positioned at the afterbody of described data content.
3. data transmission method according to claim 1, is characterized in that, described according to described data identifier analyze described data content flow to serial ports number comprise:
When described data identifier is serial ports, determine that described serial ports number is the serial ports number that described data content flows to; Or
According to the corresponding relation of the data identifier preset and described serial ports number, determine the serial ports number of described data flow.
4. data transmission method according to claim 1, is characterized in that, described data content is sent to the controller corresponding with described serial ports and comprises by described serial ports:
Described data content is received row cache of going forward side by side by described serial ports, is sent in the controller corresponding with described serial ports by described data content.
5. a data transmission method, is applied to controller and sends data to PC, it is characterized in that, comprising:
In network interface, preserve the data that each controller is sent by corresponding serial ports, the form of described data is the combination of data content and data identifier;
The serial ports number of described data content outflow is analyzed according to described data identifier;
Data content after analyzing is uploaded to PC.
6. data transmission method according to claim 5, is characterized in that, described according to described data identifier analyze described data content flow out serial ports number comprise:
When described data identifier is serial ports, determine that described serial ports number is the serial ports number that described data content flows to; Or
According to the corresponding relation of the data identifier preset and described serial ports number, determine the serial ports number of described data flow.
7. a data transmission device, is applied to PC and sends data to controller, it is characterized in that, comprising:
Storage unit, for preserving the data that PC sends in network interface, the form of described data is the combination of data content and data identifier;
Analytic unit, for analyzing the serial ports number that described data content flows to according to described data identifier;
First transmitting element, for being sent to described serial ports number corresponding serial ports by described data content;
Second transmitting element, is sent in the controller corresponding with described serial ports for described serial ports by described data content;
Wherein, the corresponding relation of described network interface and described serial ports is one-to-many, and the corresponding relation of described serial ports and described controller is one to one.
8. data transmission device according to claim 7, is characterized in that, in the form of described data, described data identifier is positioned at the head of described data content; Or
Described data identifier is positioned at the afterbody of described data content.
9. data transmission device according to claim 7, is characterized in that, described analytic unit specifically for:
When described data identifier is serial ports, determine that described serial ports number is the serial ports number that described data content flows to; Or
According to the corresponding relation of the data identifier preset and described serial ports number, determine the serial ports number of described data flow.
10. data transmission method according to claim 7, is characterized in that, described second transmitting element specifically for:
After described data content is received row cache of going forward side by side by described serial ports, described data content is sent in the controller corresponding with described serial ports.
11. 1 kinds of data transmission devices, are applied to controller and send data to PC, it is characterized in that, comprising:
Storage unit, for preserving the data that each controller is sent by corresponding serial ports in network interface, the form of described data is the combination of data content and data identifier;
Analytic unit, for analyzing the serial ports number that described data content flows out according to described data identifier;
Uploading unit, for being uploaded to PC by the data content after analysis.
12. data transmission devices according to claim 11, is characterized in that, described analytic unit specifically for:
When described data identifier is serial ports, determine that described serial ports number is the serial ports number that described data content flows to; Or
According to the corresponding relation of the data identifier preset and described serial ports number, determine the serial ports number of described data flow.
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| CN102141970A (en) * | 2011-03-21 | 2011-08-03 | 深圳市理邦精密仪器股份有限公司 | Serial communication method and system |
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| US20060141950A1 (en) * | 2004-12-24 | 2006-06-29 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling MIMO system using single serial programming interface |
| CN101008930A (en) * | 2006-01-24 | 2007-08-01 | 中国科学院长春光学精密机械与物理研究所 | Method for automatically recognizing an equipment communicating with main control computer |
| CN101764729A (en) * | 2009-12-09 | 2010-06-30 | 熊伟 | Serial server having switching function |
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