CN102930064A - Data acquisition system and data acquisition method of system based on USB (universal serial bus) - Google Patents
Data acquisition system and data acquisition method of system based on USB (universal serial bus) Download PDFInfo
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Abstract
The invention discloses a data acquisition system based on a USB (universal serial bus). The data acquisition system comprises a computer, a data transmission device and data acquisition equipment, wherein the computer is used for performing enumeration on the data transmission device, and a USB interface is used for virtualizing the data transmission device as a serial device and driving the virtual serial device; and the data transmission device is used for transmitting data information acquired by the data acquisition equipment and packaging the data information into USB data packages which are transmitted to the computer through the data transmission device, thereby implementing the data acquisition. According to the system and the device, the data transmission device is virtualized as the serial device by using a computer USB virtual serial port technology, and the control and the communication of the data transmission device are performed through a virtual serial port so as to facilitate the acquisition of the data information and realize the conversion between each bus and the USB interface or each interface protocol and the USB interface in the field of embedded control, so that the system and the device have wide applicability.
Description
Technical field
The present invention relates to computer realm, relate in particular to the method for a kind of usb data acquisition system and data acquisition thereof.
Background technology
Along with the development of embedded microprocessor, microcontroller, various control interfaces and bus mode present variation, and various interface standard, bus protocol be along with the difference of Embedded Application occasion, and self respectively has relative merits.Simultaneously, embedded control system and the interactive mode of controlling between the computing machine also more and more present unitized trend, from original serial ports, parallel port, 1394 interfaces, more and more adopt till now between USB interface and computing machine or other equipment to communicate, wherein to turn serial ports be exactly the typical practice that replaces other legacy interfaces with USB interface to USB.
General serial asynchronous communication interface (UART is called for short serial ports or com port) is a kind of serial line interface that early uses.At embedded development platform (such as single-chip microcomputer, ARM, FPGA, DSP etc.), because the serial ports exploitation is simple and convenient, a lot of equipment still use serial ports and compunication.But along with the usb communication Application of Interface is more and more extensive, configuration and the application of serial ports on common computer steps down from the stage of history just gradually.For the embedded system device of realizing using serial ports with control communicating by letter between computing machine or other equivalent of the apparatus, the thing that need to do at computer terminal is that USB interface turns serial ports.
USB is a kind of bus interface, can connect different equipment, also can simulate an equipment.The implementation that USB interface turns serial ports has two kinds:
One, User Defined USB serial equipment, the exploitation driver module generates serial ports by driver module.This mode needs the user to design and develop driver module, although dirigibility is stronger, has increased the application difficulty;
Two, communication device class (the Communication Device Class in the use usb protocol, CDC) general AT order (the Common AT Commands) agreement in the abstract control model in (the Abstract Control Model) subclass can increase a virtual serial port equipment.This mode does not need user oneself exploitation driver module, only need to provide the inf file module that driving is installed to get final product, but dirigibility is not strong, uses limited.
No matter adopt which kind of mode, the essence that USB interface turns serial ports all is based on the function that usb protocol is realized serial ports, and usb protocol has carried out complete annotation to the function of serial ports, whether adopts serial port form as for its communication data, physical interface, is inessential.Computer software, driver and the universal data link, the physical interface that USB are turned serial ports are peeled off, and realize the replacement of communication data and physical interface at hardware, it instead of other communication bus interface forms, can be realized the conversion between various interface and the USB interface.
In fields such as Industry Control, instrument and equipments, logic analyser, the USB interface that simple and easy USB interface occurred turns that SPI interface, USB interface turn the RS485 interface, USB interface turns the implementation methods such as CAN interface.Existing scheme major part is not based on that drives structure that USB turns serial ports realizes, but carries out protocol conversion for specific interface, and computer terminal is developed corresponding USB driver and software again.Cost of development is higher, and versatility, very flexible can not be carried out secondary development, and mainly adopts at full speed (Full Speed) interface of USB1.1, and transmission speed is restricted, and is difficult to be applicable to the application scenario of at a high speed a large amount of real-time data acquisitions.
Summary of the invention
In view of this, be necessary to provide a kind of general in the data acquisition system (DAS) of USB and the method for data acquisition thereof, solve the problem of at a high speed a large amount of real-time data acquisitions.
Data acquisition system (DAS) based on USB provided by the invention comprises computing machine, data transmission device and data acquisition equipment.Wherein, described computing machine is enumerated described data transmission device, by USB described data transmission device is invented serial equipment, and virtual serial port equipment is driven; Described data acquisition equipment image data information, and described data message is sent to described data transmission device with the form of hardware signal; Described data transmission device comprises: bus/interface module, bus/interface control module, data extraction and Switching Module and USB module, and wherein, bus/interface module receives described hardware signal; Bus/interface control module is resolved hardware signal according to bus/interface protocol, to obtain described data message; Data extraction and Switching Module extract the data message in described bus/interface control module, behind the buffer memory described data message are encapsulated as the usb data bag; And the USB module sends to described computing machine with described usb data bag, and wherein, described computing machine also is used for receiving described usb data bag, data acquisition.
The method of the data acquisition based on USB provided by the invention, being used for computing machine is data acquisition equipment image data information by data transmission device, may further comprise the steps: described computing machine is enumerated described data transmission device, and described data transmission device invented serial equipment, virtual serial equipment is driven; Described data transmission device initialization, and bus/interface is configured and manages; Described computing machine sends the data acquisition instruction, starts described data acquisition equipment and carries out data acquisition; Described data acquisition equipment executing data gathers, and the data message that collects is sent to described data transmission device with the form of hardware signal; Described data transmission device receives described hardware signal, and according to bus/interface protocol described hardware signal is resolved, to obtain described data message, described data message is carried out buffer memory, and be encapsulated as the usb data bag, send described usb data bag to described computing machine; Described computing machine receives described usb data bag, resolution data information, and collection is finished.
The method based on the data acquisition system (DAS) of USB and data acquisition thereof in the embodiment of the present invention is utilized the USB virtual serial port technology of computing machine that data transmission device is invented serial equipment to carry out operation and controlling, data transmission device to the data message that the data collecting device gathers extract, exchange and data transmission, thereby realized conversion between the various buses of embedded-type control field or interface protocol and the USB interface.
Description of drawings
Fig. 1 is based on the data acquisition system (DAS) figure of USB in an embodiment of the present invention;
Fig. 2 is 206 module map among Fig. 1;
Fig. 3 is based on the process flow diagram of the method for the data acquisition of USB in an embodiment of the present invention.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " interior ", " outward ", " vertically ", " laterally ", " on ", orientation or the position relationship of the indications such as D score, " top ", " end " be based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention rather than require the present invention with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
See also Fig. 1, Figure 1 shows that in an embodiment of the present invention the data acquisition system (DAS) figure based on USB.
In the present embodiment, the data acquisition system (DAS) based on USB comprises computing machine 10, data transmission device 20 and data acquisition equipment 30.In the present embodiment, data acquisition equipment 30 is with a certain bus or interface, and the form of bus comprises CAN bus, Ethernet, and the form of interface comprises UART, QEI, SPI, SSI, I2C, high speed MCI etc.
In the present embodiment, described computing machine 10 drives virtual serial equipment for data transmission device 20 being enumerated and data transmission device 20 being invented serial equipment.
In the present embodiment, the mode that drives of the described computing machine 10 CDC kind equipment that adopts usb protocols to carry realizes the driving of virtual serial port equipment.
In the present embodiment, described computing machine 10 mode that also can adopt self-defining USB to turn serial equipment realizes the driving of virtual serial port equipment.Described data acquisition equipment 30 is used for image data information, and described data message is sent to described data transmission device 20 with the form of hardware signal.In the present embodiment, data acquisition equipment 30 utilizes between bus or interface and the data transmission device 20 and communicates and data transmission, and data message is converted to corresponding hardware signal after by bus or interface.
Described data transmission device 20 comprises bus/interface module 202, bus/interface control module 204, data extraction and Switching Module 206 and USB module 208.
In the present embodiment, bus/interface module 202 is used for receiving the hardware signal that described data acquisition equipment 30 sends.
Bus/interface control module 204 is used for according to specific bus/interface protocol hardware signal being resolved, to obtain described data message.In the present embodiment, the form of bus comprises CAN bus, Ethernet, the form of interface comprises UART, QEI, SPI, SSI, I2C, high speed MCI etc., the form of hardware signal comprises RS232, RS485, CAN differential signal, ethernet signal etc., and bus/interface control module realizes the conversion between the serial data such as bus, interface and the parallel data.
Data are extracted the data message that is used for extracting described bus/interface control module with Switching Module 206, behind buffer memory described data message are encapsulated as the usb data bag.
See also Fig. 2, Figure 2 shows that among Fig. 1 206 module map, in the present embodiment, described data are extracted with Switching Module 206 and comprised: data are extracted submodule 2062, data buffer storage submodule 2064, encapsulation submodule 2066.
Data are extracted the data message that submodule 2062 is used for extracting described bus/interface control module 204.
Data buffer storage submodule 2064 is used for the data message that described data extraction submodule 2062 obtains is carried out buffer memory.
Encapsulation submodule 2066 is used for when the data message of described data buffer storage submodule 2064 reaches certain long data packet (maximum data packet that is no more than the usb protocol regulation is long) described data message being encapsulated as the usb data bag.
In the present embodiment, 10 pairs of data transmission devices 20 of computing machine are controlled when communicating by letter, and USB module 208 also is used for the information of enumerating of the usb protocol CDC class regulation of data transmission device 20 is sent to computing machine 10, realizes computing machine enumerating USB device.By data transmission device 20, set up the passage that carries out exchanges data between computing machine 10 and the data acquisition equipment 30.
See also Fig. 3, Figure 3 shows that in an embodiment of the present invention the process flow diagram based on the method for the data acquisition of USB.
In the present embodiment based on the method for the data acquisition of USB, being used for computing machine 10 is data acquisition equipment 30 image data information by data transmission device 20, wherein, data acquisition equipment 30 is with bus or interface, the form of bus comprises CAN bus, Ethernet, and the form of interface comprises UART, QEI, SPI, SSI, I2C, high speed MCI etc.May further comprise the steps:
At step S100,10 pairs of data transmission devices 20 of described computing machine are enumerated, and data transmission device 20 is invented serial equipment, and virtual serial port equipment is driven.In the present embodiment, the mode that drives of the described computing machine 10 CDC kind equipment that adopts usb protocols to carry realizes the driving of virtual serial port equipment.In other embodiments of the present invention, the mode that described computing machine 10 also can adopt self-defining USB to turn serial equipment realizes the driving of virtual serial port equipment.
In the present embodiment, data transmission device 20 sends to computing machine 10 with the information of enumerating of usb protocol CDC class regulation, and the realization computing machine is enumerated USB device, sets up the passage that carries out exchanges data between computing machine 10 and the data acquisition equipment 30.
At step S102, described data transmission device 20 initialization, and bus/interface is configured and manages.
At step S104, described computing machine 10 sends the data acquisition instruction, starts described data acquisition equipment 30 and carries out data acquisition.
At step S105, described transmitting device 20 receives steering order, and corresponding bus/interface control module 204 is started working.
At step S106, described data acquisition equipment 30 executing data collections.
At step S108, described data acquisition equipment 30 sends to described data transmission device 20 with the data message that collects with the form of hardware signal.In the present embodiment, data acquisition equipment 30 utilizes between bus or interface and the data transmission device 20 and communicates and data transmission, is converted to corresponding hardware signal after data message is by bus or interface.
At step S110, described data transmission device 20 receives described hardware signal.
At step S112, described data transmission device 20 is resolved described hardware signal according to bus/interface protocol, to obtain described data message.In the present embodiment, the form of bus comprises CAN bus, Ethernet, the form of interface comprises UART, QEI, SPI, SSI, I2C, high speed MCI etc., the form of hardware signal comprises RS232, RS485, CAN differential signal, ethernet signal etc., and described data transmission device 20 is realized the conversion between the serial data such as buses, interface and the parallel data.
At step S114,20 pairs of described data messages of described data transmission device carry out buffer memory.
At step S116, described data transmission device 20 is encapsulated as the usb data bag with described data message.In the present embodiment, the described data message of 10 buffer memorys of described data transmission device reaches the maximum data packet of usb protocol regulation and just described data message is encapsulated as the usb data bag after long.
At step S118, described data transmission device 20 sends described usb data bag to described computing machine 10.
At step S120, described computing machine 10 receives described usb data bag, resolution data information, and collection is finished.
The method based on the data acquisition system (DAS) of USB and data acquisition thereof in the embodiment of the present invention is utilized the USB virtual serial port technology of computing machine 10 that data transmission device 20 is invented serial equipment to carry out operation and controlling, the data message that 20 pairs of data collecting devices 30 of data transmission device gather extracts, exchange and data transmission, thereby has realized the conversion between the various buses of embedded-type control field or interface protocol and the USB interface.
Although the present invention is described with reference to current preferred embodiments; but those skilled in the art will be understood that; above-mentioned preferred embodiments only is used for illustrating the present invention; be not to limit protection scope of the present invention; any within the spirit and principles in the present invention scope; any modification of doing, equivalence replacement, improvement etc. all should be included within the scope of the present invention.
Claims (8)
1. the data acquisition system (DAS) based on USB comprises computing machine, data transmission device and data acquisition equipment, it is characterized in that:
Described computing machine is used for described data transmission device is enumerated, and by USB interface described data transmission device is invented serial equipment, and virtual serial port equipment is driven, and by virtual serial port data collection and transmitting device is controlled;
Described data acquisition equipment is used for image data information, and described data message is sent to described data transmission device with the form of hardware signal;
Described data transmission device comprises:
Bus/interface module is used for receiving described hardware signal;
Bus/interface control module is used for according to bus/interface protocol hardware signal being resolved, to obtain described data message;
Data are extracted and Switching Module, are used for extracting the data message of described bus/interface control module, behind the buffer memory described data message are encapsulated as the usb data bag; And
The USB module is used for described usb data bag is sent to described computing machine, and wherein, described computing machine also is used for receiving described usb data bag, resolution data information, data acquisition.
2. the data acquisition system (DAS) based on USB as claimed in claim 1 is characterized in that, described data are extracted with Switching Module and comprised:
Data are extracted submodule, are used for extracting the data message of described bus/interface control module;
The data buffer storage submodule is used for the data message that described data extraction submodule obtains is carried out buffer memory; And
The encapsulation submodule is used for when the data message of described data buffer storage submodule reaches certain long data packet (maximum data packet that is no more than the usb protocol regulation is long) described data message being encapsulated as the usb data bag.
3. the data acquisition system (DAS) based on USB as claimed in claim 1 is characterized in that, the mode that the CDC kind equipment that described computing machine adopts usb protocol to carry drives realizes the driving of virtual serial port equipment.
4. the data acquisition system (DAS) based on USB as claimed in claim 1 is characterized in that, the mode that described computing machine adopts self-defining USB to turn serial equipment realizes the driving of virtual serial port equipment.
5. the method based on the data acquisition of USB is data acquisition equipment image data information for computing machine by data transmission device, it is characterized in that, may further comprise the steps:
Described computing machine is enumerated described data transmission device, and described data transmission device is invented serial equipment, virtual serial equipment is driven, and data transmission device is controlled and communicated by letter by virtual serial port;
Described data transmission device initialization, and bus/interface is configured and manages;
Described computing machine sends the data acquisition instruction by virtual serial equipment, starts described data acquisition equipment and carries out data acquisition;
Described data acquisition equipment executing data gathers, and the data message that collects is sent to described data transmission device with the form of hardware signal;
Described data transmission device receives described hardware signal, and according to specific bus/interface protocol described hardware signal is resolved, to obtain described data message, described data message is carried out buffer memory, and be encapsulated as the usb data bag, send described usb data bag to described computing machine;
Described computing machine receives described usb data bag, resolution data information, and collection is finished.
6. method as claimed in claim 5, it is characterized in that, described data transmission device carries out buffer memory to described data message, until described data message just is encapsulated as the usb data bag with described data message after reaching certain long data packet (maximum data packet that is no more than the usb protocol regulation is long).
7. method as claimed in claim 5 is characterized in that, the mode that the CDC kind equipment that described computing machine adopts usb protocol to carry drives realizes the driving of virtual serial port equipment.
8. method as claimed in claim 5 is characterized in that, the mode that described computing machine adopts self-defining USB to turn serial equipment realizes the driving of virtual serial port equipment.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984659A (en) * | 2014-05-15 | 2014-08-13 | 华为技术有限公司 | Method and device for using serial port at different time periods |
| CN104133921A (en) * | 2014-07-24 | 2014-11-05 | 上海镭隆科技发展有限公司 | Embedded computer data collecting equipment and embedded computer data collecting method |
| CN106066610A (en) * | 2015-10-09 | 2016-11-02 | 北京首农畜牧发展有限公司 | A kind of operational approach of cowshed parameter control system |
| CN106094675A (en) * | 2015-10-09 | 2016-11-09 | 北京首农畜牧发展有限公司 | A kind of long-range PC of cowshed monitors system |
| CN106919528A (en) * | 2017-02-22 | 2017-07-04 | 中北大学 | A kind of dynamic USB device data transmission method of cross-platform free drive |
| CN108243074A (en) * | 2017-12-11 | 2018-07-03 | 芜湖职业技术学院 | The device of more CAN Practical training equipments tests can be achieved |
| CN109274859A (en) * | 2018-09-30 | 2019-01-25 | 北京航空航天大学 | A kind of SpaceWire video frequency collection card based on USB3.0 |
| CN110196810A (en) * | 2019-05-30 | 2019-09-03 | 浪潮商用机器有限公司 | A kind of information collecting device and method |
| CN110580157A (en) * | 2019-09-12 | 2019-12-17 | 广东鑫光智能系统有限公司 | Data acquisition interface based on software definition |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529988B1 (en) * | 1999-10-28 | 2003-03-04 | Matsushita Electrical Industrial | Method and apparatus for compression of universal serial bus data transmission |
| US20030233501A1 (en) * | 2002-06-18 | 2003-12-18 | Kingbyte Information Corp. | Device for transferring from a memory card interface to a universal serial bus interface |
| CN101408902A (en) * | 2008-10-06 | 2009-04-15 | 南京大学 | Method for acquiring and transporting high speed data based on FPGA and USB bus |
| CN101639539A (en) * | 2009-09-09 | 2010-02-03 | 中国科学院地质与地球物理研究所 | Storage type earthquake signal continuous collecting system |
| CN202153354U (en) * | 2011-07-15 | 2012-02-29 | 肖兰 | USB real-time data acquisition device |
| CN102497290A (en) * | 2011-11-16 | 2012-06-13 | 北京交通大学 | Data detecting equipment and method for MVB (multifunctional vehicle bus) network |
-
2012
- 2012-09-20 CN CN2012103520600A patent/CN102930064A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529988B1 (en) * | 1999-10-28 | 2003-03-04 | Matsushita Electrical Industrial | Method and apparatus for compression of universal serial bus data transmission |
| US20030233501A1 (en) * | 2002-06-18 | 2003-12-18 | Kingbyte Information Corp. | Device for transferring from a memory card interface to a universal serial bus interface |
| CN101408902A (en) * | 2008-10-06 | 2009-04-15 | 南京大学 | Method for acquiring and transporting high speed data based on FPGA and USB bus |
| CN101639539A (en) * | 2009-09-09 | 2010-02-03 | 中国科学院地质与地球物理研究所 | Storage type earthquake signal continuous collecting system |
| CN202153354U (en) * | 2011-07-15 | 2012-02-29 | 肖兰 | USB real-time data acquisition device |
| CN102497290A (en) * | 2011-11-16 | 2012-06-13 | 北京交通大学 | Data detecting equipment and method for MVB (multifunctional vehicle bus) network |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984659A (en) * | 2014-05-15 | 2014-08-13 | 华为技术有限公司 | Method and device for using serial port at different time periods |
| US9742548B2 (en) | 2014-05-15 | 2017-08-22 | Huawei Technologies Co., Ltd. | Method and apparatus for using serial port in time division multiplexing manner |
| CN104133921A (en) * | 2014-07-24 | 2014-11-05 | 上海镭隆科技发展有限公司 | Embedded computer data collecting equipment and embedded computer data collecting method |
| CN104133921B (en) * | 2014-07-24 | 2017-07-07 | 上海镭隆科技发展有限公司 | A kind of embedded computer data acquisition equipment |
| CN106066610A (en) * | 2015-10-09 | 2016-11-02 | 北京首农畜牧发展有限公司 | A kind of operational approach of cowshed parameter control system |
| CN106094675A (en) * | 2015-10-09 | 2016-11-09 | 北京首农畜牧发展有限公司 | A kind of long-range PC of cowshed monitors system |
| CN106919528A (en) * | 2017-02-22 | 2017-07-04 | 中北大学 | A kind of dynamic USB device data transmission method of cross-platform free drive |
| CN108243074A (en) * | 2017-12-11 | 2018-07-03 | 芜湖职业技术学院 | The device of more CAN Practical training equipments tests can be achieved |
| CN108243074B (en) * | 2017-12-11 | 2021-02-05 | 芜湖职业技术学院 | Device capable of realizing testing of multiple CAN (controller area network) practical training devices |
| CN109274859A (en) * | 2018-09-30 | 2019-01-25 | 北京航空航天大学 | A kind of SpaceWire video frequency collection card based on USB3.0 |
| CN110196810A (en) * | 2019-05-30 | 2019-09-03 | 浪潮商用机器有限公司 | A kind of information collecting device and method |
| CN110580157A (en) * | 2019-09-12 | 2019-12-17 | 广东鑫光智能系统有限公司 | Data acquisition interface based on software definition |
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Application publication date: 20130213 |