CN104091433B - A kind of Digital Oscillograph data radio transmission system and method based on RFID - Google Patents
A kind of Digital Oscillograph data radio transmission system and method based on RFID Download PDFInfo
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- CN104091433B CN104091433B CN201410330673.3A CN201410330673A CN104091433B CN 104091433 B CN104091433 B CN 104091433B CN 201410330673 A CN201410330673 A CN 201410330673A CN 104091433 B CN104091433 B CN 104091433B
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Abstract
The present invention proposes a kind of Digital Oscillograph data radio transmission system based on RFID, including：Computer main control end, RFID main control modules, Digital Oscillograph collection terminal and RFID acquisition terminals；The computer main control end is connected by network interface with RFID main control modules, Digital Oscillograph is connected by network interface with RFID acquisition terminals, the data that Digital Oscillograph collects are sent to RFID acquisition terminals by network interface and sent, and the RFID main control modules, which receive data and are sent to computer main control end by network interface, carries out processing preservation.The present invention uses RFID technique, and wireless data transmission is not limited by conditions such as network layout, geographical environment, weather, times, effectively overcomes using traditional data transmission channel i.e. by the limitation of Data Over Cable.
Description
Technical field
It is more particularly to a kind of that wireless transmitting system is carried out to Digital Oscillograph data the present invention relates to technical field of measurement and test,
Further relate to a kind of to Digital Oscillograph data progress radio transmitting method.
Background technology
Digital Oscillograph is a kind of multi-functional, hand for integrating digital oscilloscope, digital multimeter and frequency meter
Formula, universal measurement and analysis instrument are held, it not only inherits the measurement function of conventional digital storage oscillograph, also has numeral ten thousand
With the measurement function of table, small volume, in light weight, portable, low in energy consumption, built-in lithium battery power supply, particularly suitable for field, motor-driven
Deng use occasion, the accurate measurement under live severe rugged environment can be met.
Because the limitation of the embedded system of Digital Oscillograph in itself, such as display device resolution ratio are low, memory space
Small, data-handling capacity is limited etc., therefore, Oscillograph is accessed computer testing system, using the powerful processing of computer and
Storage capacity, data are stored and further handled necessary.
The data that traditional data transmission channel is gathered by wire transmission, such as pass through serial ports, USB interface, network interface etc.
The communication between computer and digital oscilloscope can be achieved.
Serial ports is serial communication interface, is a kind of interface very general in computer, is applied in instrumentation devices
Widely.In serial communication, interface is transmitted and received to byte so that position (bit) is unit.Serial ports is mainly used
In transmission ASCII character character.When serial communication, ground wire, transmission data, reception data are realized respectively by 3 lines
's.Serial communication is asynchronous communication, and port carries out receiving data and sends data manipulation respectively simultaneously in both threads.It is generally right
The configuration of serial communication includes the setting to baud rate, data bit, stop position and even-odd check etc..
The communication interface of traditional Oscillograph is mainly RS232, and RS232 transmission speed is slow, and transmission range is short, anti-interference
The features such as ability is weak significantly limit its application in Oscillograph.In recent years, USB (Universal Serial Bus)
Universal serial bus technology is popularized, and it possesses the faster data transmission bauds of interface more serial and concurrent than traditional RS-232.
USB1.1 interface equipments use two kinds of speed：12Mbps (full speed) and 1.5Mbps (low speed, being mainly used in man-machine interface),
USB2.0 maximum speeds can reach 480Mbps and backward compatible USB1.1, this low cost, using it is simple, support plug and play,
The features such as being easy to extension so that USB has been widely used in PC and embedded system, has also been obtained very in testing field
High popularity rate, usb bus has very strong vitality now or in the quite a while in future.
USB interface is compared with RS232, and USB has obvious advantage, and speed is fast, and plug is convenient, but transmission range equally by
Limit.The requirement of modern test theory realizes that instrument resource is shared and remote control, such as by string, parallel bus, CAN not
The needs of data acquisition and transmission can be met, as many measuring environments of Oscillograph are communicated needs using wired data transfer mode
Higher cost, big advantage is just at this moment shown using wireless data transmission, wireless data transmission is not by geographical environment, gas
The limitation of the conditions such as time, time.
With the design philosophy construction exploitation Auto-Test System of network technology, and networking is allowed to, makes automatic test system
System development enters a brand-new stage.And the interconnection between Auto-Test System, people are realized in any scattered survey
Examination node, get the hopes of metrical information (data) at any time, therefore networking is tested and is automatically in production practices
System will be more widely used.At present, the medium-to-high grade Digital Oscillograph produced both at home and abroad because there is processor inside, because
And have many intelligent characteristics, a variety of digital interfaces such as Ethernet are equipped with, facilitate digital oscilloscope to be carried out by Ethernet with extraneous
Communication.
With the increasingly exquisiteness of the technologies such as computer, information processing and storage, short-distance wireless communication technology also obtains fast
The development of speed.Short-distance wireless communication mode mainly has two kinds：Infrared technique and the radio-frequency technique (RFID for working in ISM band
Technology, Bluetooth technology etc.).The shortcomings that infrared technique is infrared high directivity, communication distance is shorter, can not have shelter etc..It is blue
Not only technical sophistication degree is high for tooth, and design of hardware and software and its protocol programming are complicated, and transmission range relative close.RFID (RFID,
Radio Frequency Identification) it is radio frequency identification, it is a kind of data acquisition that need not be contacted and oneself
Dynamic identification technology, it, come automatic identification destination object, and obtains the relevant data message of destination object by frequency microwave signal,
It is in communication with each other so as to realize, identification work does not need artificial intervention, can be worked under various adverse circumstances.
Wireless data transmission based on RFID technique, its distinguishing feature are：Required peripheral cell is few, and design is convenient；Work
In the ISM band of international openness, without applying to specialized department using license；With the development of radio-frequency technique, wireless data passes
The size of defeated module is less and less, and function is also more and more complete, along with after auxiliary element in performance more superior, transmission distance
From farther, the stability of signal is higher, and transmission rate faster, realize simple, and strong antijamming capability, system power dissipation is low, special by hardware
It is not adapted to be integrated into Digital Oscillograph embedded system.
The content of the invention
The present invention proposes a kind of Digital Oscillograph data radio transmission system and method based on RFID, solves existing skill
Digital Oscillograph Data Over Cable limited transmission distance in art, it is affected by environment big the problem of.
The technical proposal of the invention is realized in this way：
A kind of Digital Oscillograph data radio transmission system based on RFID, including：Computer main control end, RFID master control moulds
Block, Digital Oscillograph collection terminal and RFID acquisition terminals；The computer main control end passes through network interface and RFID main control modules
It is connected, Digital Oscillograph is connected by network interface with RFID acquisition terminals, and the data that Digital Oscillograph collects pass through network
Interface is sent to RFID acquisition terminals and sent, and the RFID main control modules receive data and transmitted by network interface
Processing preservation is carried out to computer main control end；
The Ethernet interface signal of the Digital Oscillograph embedded type CPU is sent to RJ45 interfaces all the way after transformer,
Realize the wire communication of Digital Oscillograph；The Ethernet interface signal of the Digital Oscillograph embedded type CPU is after transformer
Another way is sent to RFID interface, realizes the wireless telecommunications of Digital Oscillograph.
Alternatively, Digital Oscillograph data are wirelessly transferred middle data frame format and use binary mode, and data frame uses
Indefinite long structure, it is made up of frame head, frame and postamble, the length of the item of information included in the frame is indefinite long structure.
Alternatively, the frame head of the data frame includes：Origin identification, using the character type form of 2 byte lengths, as number
According to the first dielectric word of frame；Key plate sheet, the main version information of mark data frame format；Subedition, the pair of mark data frame format
Version information；Frame length, identify the total bytes of frame；Device type, identify device type；Unit type, identify equipment
Concrete model；Equipment Serial Number, identify the device numbering of equipment；
The frame of the data frame includes the item of information of measurement data；
The postamble of the data frame：Fixed 0x0a.
Alternatively, the setting of the data frame frame is specially：
Based on above-mentioned Digital Oscillograph data radio transmission system, present invention also offers a kind of numeral based on RFID to show
Wavetable data radio transmitting method, computer main control end are connected by network interface with RFID main control modules, and Digital Oscillograph leads to
Cross network interface with RFID acquisition terminals to be connected, the data that Digital Oscillograph collects are sent to RFID by network interface and gathered
Terminal concurrence is seen off, and the RFID main control modules of computer main control end receive data and are sent to computer by network interface
Main control end carries out processing preservation；
The Ethernet interface signal of the Digital Oscillograph embedded type CPU is sent to RJ45 interfaces all the way after transformer,
Realize the wire communication of Digital Oscillograph；The Ethernet interface signal of the Digital Oscillograph embedded type CPU is after transformer
Another way is sent to RFID interface, realizes the wireless telecommunications of Digital Oscillograph.
Alternatively, Digital Oscillograph data are wirelessly transferred middle data frame format and use binary mode, and data frame uses
Indefinite long structure, it is made up of frame head, frame and postamble, item of information is included in the frame, the length of described information item is indefinite
Long structure.
Alternatively, the frame head of the data frame includes：Origin identification, using the character type form of 2 byte lengths, as number
According to the first dielectric word of frame；Key plate sheet, the main version information of mark data frame format；Subedition, the pair of mark data frame format
Version information；Frame length, identify the total bytes of frame；Device type, identify device type；Unit type, identify equipment
Concrete model；Equipment Serial Number, identify the device numbering of equipment；
The frame of the data frame includes the item of information of measurement data；
The postamble of the data frame：Fixed 0x0a.
Alternatively, the setting of the data frame frame is specially：
Alternatively, the data tissue collected is packaged into the data frame format and gathered by RFID by Digital Oscillograph
Terminal uploads to computer main control end, computer main control end after receiving the data according to the decapsulation of same data frame format so as to
Digital Oscillograph gathered data is obtained, while obtains each parameter setting of the Digital Oscillograph in data acquisition, recovers numeral
Oscillograph gathered data waveform.
The beneficial effects of the invention are as follows：
(1) RFID technique is used, wireless data transmission is not limited by conditions such as network layout, geographical environment, weather, times
System, effectively overcome using traditional data transmission channel i.e. by the limitation of Data Over Cable；
(2) computer main control end can realize the real-time monitoring to multiple acquisition terminals, and computer main control end has certainly
Dynamic identification acquisition terminal ID number function, may thereby determine which specific platform instrument；
(3) circuit structure is simple, cost is low, small power consumption, is suitable for miniaturization, the handheld digital oscilloscope of low-power consumption；
(4) it is extended on the basis of the existing Ethernet interface of Digital Oscillograph, design is convenient；
(5) data frame structure extends to different instruments, may apply in non-Oscillograph quasi-instrument.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the system block diagram of the Digital Oscillograph data radio transmission system of the invention based on RFID；
Fig. 2 is the control principle block diagram of the Digital Oscillograph data radio transmission system of the invention based on RFID.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Digital Oscillograph data radio transmission system of the invention based on RFID includes computer main control end, RFID master control moulds
Block, Digital Oscillograph collection terminal and RFID acquisition terminals, its block diagram of system are as shown in Figure 1.Computer passes through network interface
It is connected with RFID main control modules, Digital Oscillograph is connected by network interface with RFID acquisition terminals, and Digital Oscillograph collects
Data RFID acquisition terminals be sent to by network interface sent, received in the RFID main control modules of computer main control end
To data and computer main control end is sent to by network interface and carries out processing preservation.Computer main control end can be realized to multiple
The real-time monitoring of acquisition terminal, computer main control end has automatic identification acquisition terminal ID number function, using point-to- point communication mould
Formula, constructed wireless network links support TCP/IP Ethernet host-host protocols.
The Digital Oscillograph data radio transmission system based on RFID of the present invention, in the base of Digital Oscillograph wire communication
Radio communication is realized on plinth, realizes wire communication and radio communication both of which.As shown in Fig. 2 Digital Oscillograph embedded type CPU
Ethernet interface signal be sent to RJ45 interfaces all the way after transformer, realize the wire communication of Digital Oscillograph；It is embedded
CPU Ethernet interface signal another way after transformer is sent to RFID interface, realizes the wireless telecommunications of Digital Oscillograph；By
In a shared Ethernet interface, wire communication and wireless telecommunications can not work simultaneously.
Digital Oscillograph data are wirelessly transferred middle data frame format and use binary mode, by various items of information according to certain
Frame mode combine.And data frame uses indefinite long structure, is made up of frame head, frame and postamble, is wrapped in the frame
Containing item of information, the length of item of information is indefinite long structure, and each item of information is by the header content of the data frame comprising it and its appearance
Position in a data frame determines jointly.Data frame structure is as shown in table 1：
Table 1
In table 1, frame head structure is specially：
Origin identification：Using the character type form of 2 byte lengths, the first dielectric word as data frame；
Key plate sheet：The main version information of mark data frame format；
Subedition：The subedition information of mark data frame format；
Frame length：Identify the total bytes of frame；
Device type：For identifying device type in the system, wireless transmitting system can also expand to other as needed
Instrument type；
Unit type：Identify the concrete model of equipment；
Equipment Serial Number：Identify the device numbering of equipment；
Frame：According to different device types, the structure of frame and it is different, in table 2 as described below equipment frame define；
Postamble：Fixed 0x0a.
Wherein body section measurement data information item can be according to different device type definitions, wherein Digital Oscillograph frame
Definition is as shown in table 2：
Table 2
The data tissue collected is packaged into above-mentioned data frame format and uploaded by RFID acquisition terminals by Digital Oscillograph
To RFID main control ends, that is, host computer is transferred to, computer is after receiving the data also according to above-mentioned data frame format solution
Encapsulation also can obtain each parameter setting of the Oscillograph in data acquisition so as to obtain Digital Oscillograph gathered data, from
And recover Oscillograph gathered data waveform.
Based on the description of the above-mentioned Oscillograph data radio transmission system based on RFID to the present invention, present invention also offers
A kind of Oscillograph wireless data transmission method based on RFID, its each several part annexation, control principle are above-mentioned to system
Describe in detail in description, repeat no more here.
Oscillograph data radio transmission system and method for the invention based on RFID, using RFID technique, wireless data passes
It is defeated not limited by conditions such as network layout, geographical environment, weather, times, effectively overcome using traditional data transmission channel
Pass through the limitation of Data Over Cable；Computer main control end can realize the real-time monitoring to multiple acquisition terminals, and calculate
Machine main control end has automatic identification acquisition terminal ID number function, may thereby determine which specific platform instrument；Circuit structure is simple,
Cost is low, small power consumption, is suitable for miniaturization, the handheld digital oscilloscope of low-power consumption；Connect in the existing Ethernet of Digital Oscillograph
It is extended on the basis of mouthful, design is convenient；Data frame structure extends to different instruments, may apply to non-Oscillograph class instrument
In device.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (5)
- A kind of 1. Digital Oscillograph data radio transmission system based on RFID, it is characterised in that including：Computer main control end, RFID main control modules, Digital Oscillograph collection terminal and RFID acquisition terminals；The computer main control end by network interface and RFID main control modules are connected, and Digital Oscillograph is connected by network interface with RFID acquisition terminals, what Digital Oscillograph collected Data are sent to RFID acquisition terminals by network interface and sent, and the RFID main control modules receive data and passed through Network interface is sent to computer main control end and carries out processing preservation；The Ethernet interface signal of Digital Oscillograph embedded type CPU is sent to RJ45 interfaces all the way after transformer, realizes numeral The wire communication of Oscillograph；The Ethernet interface signal of Digital Oscillograph embedded type CPU another way after transformer is sent To RFID interface, the wireless telecommunications of Digital Oscillograph are realized；Digital Oscillograph data are wirelessly transferred middle data frame format and use binary mode, and data frame uses indefinite long structure, It is made up of frame head, frame and postamble, item of information is included in the frame, the length of described information item is indefinite long structure；The frame head of the data frame includes：Origin identification, using the character type form of 2 byte lengths, the starting as data frame Synchronization character；Key plate sheet, the main version information of mark data frame format；Subedition, the subedition information of mark data frame format；Frame Length, identify the total bytes of frame；Device type, identify device type；Unit type, identify the concrete model of equipment；If Standby sequence number, identify the device numbering of equipment；The frame of the data frame includes the item of information of measurement data；The postamble of the data frame：Fixed 0x0a.
- 2. the Digital Oscillograph data radio transmission system based on RFID as claimed in claim 1, it is characterised in that the number Setting according to frame frame is specially：
- 3. a kind of Digital Oscillograph wireless data transmission method based on RFID, it is characterised in that computer main control end passes through net Network interface is connected with RFID main control modules, and Digital Oscillograph is connected by network interface with RFID acquisition terminals, Digital Oscillograph The data collected are sent to RFID acquisition terminals by network interface and sent, the RFID master control moulds of computer main control end Block, which receives data and is sent to computer main control end by network interface, carries out processing preservation；The Ethernet interface signal of Digital Oscillograph embedded type CPU is sent to RJ45 interfaces all the way after transformer, realizes numeral The wire communication of Oscillograph；The Ethernet interface signal of Digital Oscillograph embedded type CPU another way after transformer is sent To RFID interface, the wireless telecommunications of Digital Oscillograph are realized；Digital Oscillograph data are wirelessly transferred middle data frame format and use binary mode, and data frame uses indefinite long structure, It is made up of frame head, frame and postamble, item of information is included in the frame, the length of described information item is indefinite long structure；The frame head of the data frame includes：Origin identification, using the character type form of 2 byte lengths, the starting as data frame Synchronization character；Key plate sheet, the main version information of mark data frame format；Subedition, the subedition information of mark data frame format；Frame Length, identify the total bytes of frame；Device type, identify device type；Unit type, identify the concrete model of equipment；If Standby sequence number, identify the device numbering of equipment；The frame of the data frame includes the item of information of measurement data；The postamble of the data frame：Fixed 0x0a.
- 4. the Digital Oscillograph wireless data transmission method based on RFID as claimed in claim 3, it is characterised in that the number Setting according to frame frame is specially：
- 5. the Digital Oscillograph wireless data transmission method based on RFID as claimed in claim 4, it is characterised in that numeral is shown The data tissue collected is packaged into the data frame format and uploads to computer master control by RFID acquisition terminals by wave table End, computer main control end decapsulate according to same data frame format so as to obtain Digital Oscillograph collection number after receiving the data According to, while each parameter setting of the Digital Oscillograph in data acquisition is obtained, recover Digital Oscillograph gathered data waveform.
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| CN104535837B (en) * | 2014-12-18 | 2018-02-06 | 中国电子科技集团公司第四十一研究所 | A kind of frequency power integrated measurer being wirelessly transferred based on RFID and method |
| CN104597303B (en) * | 2014-12-18 | 2018-10-12 | 中国电子科技集团公司第四十一研究所 | A kind of wireless transmission type Digital Oscillograph device |
| CN110086793B (en) * | 2019-04-18 | 2021-11-09 | 中国大唐集团新能源科学技术研究院有限公司 | Communication data frame structure of wind generating set |
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| CN86207738U (en) * | 1986-10-04 | 1987-09-23 | 黄伟顺 | Universal oscillometer |
| JP4935210B2 (en) * | 2006-07-08 | 2012-05-23 | Ｋｄｄｉ株式会社 | Network connection type detection method and system, and network device |
| CN101093535A (en) * | 2007-07-12 | 2007-12-26 | 上海华申智能卡应用系统有限公司 | Method for testing whether there is responsion from passive UHF label or not |
| CN101826968A (en) * | 2010-03-26 | 2010-09-08 | 医惠科技(苏州)有限公司 | Device for realizing mutual conversion between RFID wireless signals and Ethernet signals |
| CN201935947U (en) * | 2011-01-25 | 2011-08-17 | 中南林业科技大学 | Control device for handheld digital oscilloscope |
| CN202230117U (en) * | 2011-07-15 | 2012-05-23 | 深圳华盛昌机械实业有限公司 | Color-screen digital universal oscilloscope |
| CN103323638A (en) * | 2013-07-05 | 2013-09-25 | 无锡商业职业技术学院 | Multifunctional digital scope meter |
| CN103793161A (en) * | 2013-10-24 | 2014-05-14 | 中国电子科技集团公司第四十一研究所 | Method for increasing key response speed of digital oscillograph |
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