CN103701471B - A kind of frequency converter keyboard and read method - Google Patents
A kind of frequency converter keyboard and read method Download PDFInfo
- Publication number
- CN103701471B CN103701471B CN201310681182.9A CN201310681182A CN103701471B CN 103701471 B CN103701471 B CN 103701471B CN 201310681182 A CN201310681182 A CN 201310681182A CN 103701471 B CN103701471 B CN 103701471B
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- function code
- keyboard
- card
- cpu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
The present invention provides a kind of frequency converter keyboard, including：The peripheral interface of keyboard CPU and keyboard CPU；The peripheral interface of the keyboard CPU with one be stored with frequency converter function code SD card it is pluggable be connected.The frequency converter keyboard that the present invention is provided has pluggable SD card.The function code of frequency converter is stored in SD card.When so attendant needs to change the function code of frequency converter, it is only necessary to SD card is pulled from frequency converter keyboard, is inserted on computer, modification finishes rear function code and is stored in SD card, then SD card is plugged on frequency converter keyboard.When so carrying out the modification of function code every time, burning program again is no longer needed.Therefore, the frequency converter keyboard that the present invention is provided with the SD card that can be plugged due to making the easy to maintenance much of frequency converter.
Description
Technical field
The present invention relates to technical field of electric equipment, more particularly to a kind of frequency converter keyboard and read method.
Background technology
Frequency converter is increasingly wider in many aspect applications such as steel, petrochemical industry, weaving, electric power at present, and frequency converter prison
The effect of control equipment is also increasing, and the monitoring device of monitoring frequency converter work is mainly frequency converter keyboard at present.
At present, frequency converter keyboard is all charactron keyboard or single color LCD keyboard, and although this kind of keyboard disclosure satisfy that substantially
The need for, but have the following disadvantages simultaneously：
The function code of existing frequency converter is all stored in the Flash in the Flash inside CPU or outside CPU, due to
Flash finite capacities inside CPU, can only store a small amount of function code.Once need modification function code be accomplished by again to
Burning program in Flash, so safeguards pretty troublesome.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of frequency converter keyboard and read method, can be in modification function code
When, it is not necessary to burning program, it is easy to maintenance.
The embodiment of the present invention provides a kind of frequency converter keyboard, including：The peripheral interface of keyboard CPU and keyboard CPU；
The peripheral interface of the keyboard CPU with one be stored with frequency converter function code SD card it is pluggable be connected.
Preferably, also include：LCDs, touch-screen control chip；
The touch-screen control chip, for gathering the touch information on the LCDs, by the touch information
Corresponding coordinate is sent to the keyboard CPU.
Preferably, also including wireless communication module；The wireless communication module, between keyboard CPU and frequency converter
Radio communication.
Preferably, also including wire communication module；
The wire communication module, for the wire communication between keyboard CPU and frequency converter.
Preferably, also including the external key of connection keyboard CPU, the external key is used to control the operation shape of frequency converter
State.
Preferably, the wireless communication module includes two ZigBee modules, respectively the first ZigBee module and second
ZigBee module；
Wherein, first ZigBee module connects frequency converter by first serial, and second ZigBee module passes through
Second serial connection keyboard CPU；Radio communication is carried out between first ZigBee module and the second ZigBee module.
Preferably, the character library and image data of the language of at least one country of storage are additionally operable in the SD card.
The embodiment of the present invention also provides a kind of method of frequency converter keyboard read functions code, is applied to include pluggable SD card
Frequency converter keyboard in, in the SD card store frequency converter function code allocation list, the function code allocation list Fragmentation；Bag
Include following steps：
Judge whether the corresponding function code information of function code group name for needing to read user's selection, the function code group name row
Table shows in further menu display interface；
When the corresponding function code information of the function code group name for needing reading user to select, into second-level menu display interface
Read the corresponding function code information of function code group name of the selection.
Preferably, the entrance second-level menu display interface reads the corresponding function code letter of function code group name of the selection
Breath, specifically includes：
Continuous page two of function code information is read every time, and the work(of the selection is extracted from the function code information of page two for reading
Can the corresponding function code information of code character.
Preferably, two contents of continuous page of N and N+1 are read, the display information of needs is extracted from the N pages, as N
When EOP address is in the centre of certain page of function code group name, the function code of the remaining function code group name is extracted from the N+1 pages
Information simultaneously carries out showing complete function code group name.
Compared with prior art, the present invention has advantages below：
In the Flash inside or outside frequency converter keyboard CPU being deposited in due to the function code of frequency converter of the prior art,
, it is necessary to burning program so safeguards hell to pay in Flash again when carrying out program maintenance for frequency converter.Therefore, the present invention
The frequency converter keyboard of offer has pluggable SD card.The function code of frequency converter is stored in SD card.So attendant needs
When changing the function code of frequency converter, it is only necessary to SD card is pulled from frequency converter keyboard, is inserted on computer, modification finishes rear work(
Energy code is stored in SD card, then SD card is plugged on frequency converter keyboard.When so carrying out the modification of function code every time,
No longer need burning program again.Therefore, the frequency converter keyboard that the present invention is provided with the SD card that can be plugged due to making change
Frequency device it is easy to maintenance a lot.
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
The accompanying drawing to be used needed for having technology description is 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 schematic diagram of frequency converter keyboard embodiment one that the present invention is provided；
Fig. 2 is the schematic diagram of frequency converter keyboard embodiment two that the present invention is provided；
Fig. 3 is the schematic diagram of embodiment three of the frequency converter keyboard that the present invention is provided；
Fig. 3 a are the flow charts of the radio communication that the present invention is provided；
Fig. 4 is the example IV schematic diagram of the frequency converter keyboard that the present invention is provided；
The method flow diagram of the frequency converter keyboard read functions code that Fig. 5 is to provide.
Specific 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 is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
To enable the above objects, features and advantages of the present invention more obvious understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Embodiment one：
Referring to Fig. 1, the schematic diagram of frequency converter keyboard embodiment one that the figure is provided for the present invention.
The frequency converter keyboard that the present embodiment is provided, including：The peripheral interface 100a of keyboard CPU100 and keyboard CPU；
The peripheral interface 100a of the keyboard CPU is located at the outer peripheral end of keyboard CPU100.
The peripheral interface 100a of the keyboard CPU with one be stored with frequency converter function code SD card it is pluggable be connected
Connect；
The SD card 200, the function code for storing frequency converter 300.
It is understood that the memory capacity of SD card 200 is more much larger than Flash capacity of the prior art, can store
Many contents, will not enumerate herein.
SD card is introduced first.
SD card（Secure Digital Memory Card）It is a kind of a new generation's note based on semiconductor fast-flash memory device
Recall equipment.Not only small volume weight is also very light for SD card, normally only 2 grams, but possess memory capacity high, rapid data transmission rate,
Great mobile flexibility and good security.
In the prior art, the Flash capacity very littles that the keyboard CPU of frequency converter is carried, deposit in the Flash that keyboard CPU is carried
The function code limited amount of storage；In order to solve this problem, in function code being existed into the Flash that keyboard CPU is extended out, but
This method modification function code will be troublesome, it is necessary to re-start the burning of function code.
The frequency converter keyboard that the present embodiment is provided, by function code storage in SD card 200, can so realize inserting i.e.
With modification function code is very convenient, it is not necessary to carry out the burning program of function code.
It should be noted that during the storage of wherein function code can deposit in SD card 200 in the form of Excel.
In the Flash inside or outside frequency converter keyboard CPU being deposited in due to the function code of frequency converter of the prior art,
, it is necessary to burning program so safeguards hell to pay in Flash again when carrying out program maintenance for frequency converter, journey is changed every time
Sequence is required to special replication tool and carries out burning, and operating efficiency is too low.Therefore, the frequency converter keyboard that the present invention is provided is hand-held
Formula has pluggable SD card 200.The function code of frequency converter 300 is stored in SD card 200.So attendant needs modification to become
During the function code of frequency device 300, it is only necessary to SD card 200 is pulled from frequency converter keyboard, is inserted on computer, changed on computers
After finishing function code, amended function code is stored in SD card 200, then SD card is pulled from computer, be plugged on change
Be can be used on frequency device keyboard.This avoid the step that burning again is needed during the modification for carrying out function code every time in the prior art
Suddenly.Therefore, the frequency converter keyboard that the present invention is provided with the SD card that can be plugged due to making the easy to maintenance very of frequency converter
It is many.
Embodiment two：
Referring to Fig. 2, the schematic diagram of frequency converter keyboard embodiment two that the figure is provided for the present invention.
Frequency converter keyboard provided in an embodiment of the present invention, also includes：LCDs 400, touch-screen control chip 500,
Wireless communication module 600 and wire communication module 700；
The touch-screen control chip 500 is connected with the LCDs 400 and the keyboard CPU100；
The touch-screen control chip 500, for gathering the touch information on the LCDs 400, touches described
Touch the corresponding coordinate of information and be sent to the keyboard CPU100.
It should be noted that the keyboard CPU100 can preferably use ARM chips.
In the present embodiment provide SD card in be also stored with least one country font character library, many states can be stored
The character library of the font of family, it can in addition contain store image data etc..
The content stored in can showing SD card on LCDs 400 in the present embodiment.And can show simultaneously
Multiple fonts, some important parameters can show more eye-catching according to setting condition.
It should be noted that the LCDs 400 in the frequency converter keyboard of the present embodiment offer is touch-screen, preferably adopt
With 3.2 cun of TFTs（TFT, Thin Film Transistor）LCDs.
The wireless communication module 600, for the radio communication between keyboard CPU100 and frequency converter 300.
The wire communication module 700, for the wire communication between keyboard CPU100 and frequency converter 300.
It is understood that wire communication module 700 is preferably led to using 422 full duplex communication agreements in the present embodiment
Letter, it is of course also possible to use the agreement of other forms is communicated, such as 485 communication protocols.
It should be noted that what communication between frequency converter keyboard of the prior art and frequency converter used is cable modem
Letter.The general 422 full duplex communication agreements using standard communicate with frequency converter, and frequency converter keyboard can not leave frequency converter, so
Commissioning staff's tuning parameter or user can only be carried out when checking parameter in the place of frequency converter placement.So inconvenient frequency converter
Operation and maintenance.Therefore, the present invention is configured with wireless communication module to solve the frequency converter keyboard of this problem offer.This
Sample commissioning staff may not necessarily be greatly improved in frequency converter lay down location operation keyboard, the free degree.
And the frequency converter keyboard that the present embodiment is provided not only had included wireless communication module but also including wire communication module.So
Between frequency converter keyboard and frequency converter both radio communication, two can be used again by 422 full duplex communication agreements of standard
Planting communication mode can select according to actual conditions.When site environment interference is stronger, wire communication can be selected, now keyboard
Working power by frequency converter by netting twine provide.When the environment that frequency converter is placed is more severe（Such as dust is more, temperature is high）,
Radio communication can be selected, now needs frequency converter to connect one of wireless communication module, it is wireless that keyboard connects another
Communication module, the working power of keyboard is provided by external power source, and wireless module is by two section dry cell power supplies.Using radio communication
When, radio communication quality at that time can be shown on LCDs.
Embodiment three：
Referring to Fig. 3, the schematic diagram of embodiment three of the frequency converter keyboard that the figure is provided for the present invention.
The wireless communication module in the frequency converter keyboard that the present invention is provided is introduced in the present embodiment.
The wireless communication module includes two ZigBee modules, respectively the first ZigBee module and the 2nd ZigBee moulds
Block；
Wherein, frequency converter connects the first ZigBee module by first serial, and keyboard CPU connects second by second serial
ZigBee module；Radio communication is carried out between first ZigBee module and the second ZigBee module.
By two ZigBee modules it is to be capable of achieving point-to-point radio communication in the present embodiment.
The wireless communication module provided in the present embodiment can select CC2430 as the chip of wireless transceiver；For example,
First ZigBee module is referred to as ZigBee node 1, and the second ZigBee module is referred to as ZigBee node 2；
Wherein, ZigBee node 1 is connected with frequency converter, and the CPU of frequency converter sends the data to ZigBee node 1.
Pass through serial ports between ZigBee node 2 and keyboard CPU（Can for example be realized by 485 communication protocols）Carry out data
Transmission.
By the protocol stack Z-Stack- based on ZigBee2007 of TI between ZigBee node 1 and ZigBee node 2
CC2530-2.3.0 carries out the transmitting-receiving of data.
The flow chart of the radio communication provided for the present invention referring to Fig. 3 a figures.
S301：Search channel simultaneously completes initialization；
S302：Set up network；
S303：Judge whether to be successfully established, if it is, performing S304, otherwise perform S302；
S304：Add ZigBee node and distribute address；
S305：One ZigBee node sends data, and another ZigBee node receives data；Specifically, when frequency converter is passed through
When ZigBee node 1 sends data, keyboard receives data through ZigBee node 2；When keyboard sends data through ZigBee node 2
When, frequency converter receives data through ZigBee node 1.
S306：Finish receiving and verification data；Specifically, the side for receiving data completes verification data.
Example IV：
Referring to Fig. 4, the example IV schematic diagram of the frequency converter keyboard that the figure is provided for the present invention.
The frequency converter keyboard that the present embodiment is provided, also including real-time clock RTC battery chips 800；
The RTC battery chips 800 are connected with the keyboard CPU100.
In addition, the frequency converter keyboard that the present embodiment is provided also includes keystroke interface 900；
The keystroke interface 900 connects external key and keyboard CPU100.
Frequency converter can simply be controlled by external key.3 external keys can be for example set, respectively
RUN, STOP, HOME key, wherein it refers to operation frequency converter to press RUN keys, it refers to stopping frequency converter pressing STOP keys, presses HOME keys and refers to
Main interface is quickly returning at any interface.The specific number of external key is not limited in the embodiment of the present invention specifically, can basis
Need specifically to set.
Based on a kind of frequency converter keyboard that above example is provided, work(is read present invention also offers a kind of frequency converter keyboard
The method of energy code.It is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 5, the method flow diagram of the frequency converter keyboard read functions code that the figure is provided for the present invention.
The method of the frequency converter keyboard read functions code that the present embodiment is provided, is applied to include the frequency converter of pluggable SD card
In keyboard, the function code allocation list of frequency converter, the function code allocation list Fragmentation are stored in the SD card；Including following step
Suddenly：
S501：Judge whether the corresponding function code information of function code group name for needing to read user's selection, the function code
Group name list shows in further menu display interface；
During concrete application, it is necessary first to which the function code allocation list that will be deposited in Excel allocation lists saves as " text
（It is tab-delimited）", and change the txt file title after conversion.
Allocation list is divided into some pages, every page of size can be 512 bytes, first by allocation list after the completion of power-up initializing
Read through, determine in allocation list in the group number and allocation list of function code every page including line number etc. information.
After user clicks on menu display icon, software starts to read the group name of the function code in allocation list and show, this
It is further menu display interface, user can select to enter second-level menu display interface (function code title display interface), three-level
Menu display interface (function code parameter interface, in the parameter of this interface setting function code) returns to main interface.
It should be noted that main interface is different from further menu, each icon is shown in main interface, wherein wrapping
Parameter monitoring, parameter setting, failure, panel setting etc. are included, parameter setting interface is clicked on and is entered further menu.
S502：It is aobvious into second-level menu when the corresponding function code information of the function code group name for needing reading user to select
Show that the corresponding function code information of function code group name of the selection is read at interface.
The entrance second-level menu display interface reads the corresponding function code information of function code group name of the selection, specifically
Including：
Continuous page two of function code information is read every time, and the work(of the selection is extracted from the function code information of page two for reading
Can the corresponding function code information of code character.
It should be noted that because function code allocation list one page shows 512 bytes, it is a certain interior in allocation list is read
Hold（By taking read functions code character name as an example）When, if the end address of 512 bytes is not at the function code group name for reading
End at when, just cannot be read correctly the group name of the function code, thus on further menu display interface show the function code
Group name is just imperfect.
In order to solve the problem in the present invention, 2 contents of continuous 512 byte are read every time（N and N+1 pages two）, i.e.,
The continuous content for reading page two, extracts the display information of needs, when N EOPs address is in certain page of function code from the N pages
During the centre of group name, the function code information of the remaining function code group name is extracted from the N+1 pages and is shown.
It should be noted that the content stored in SD card in the embodiment of the present invention is paging storage, every page of 512 words of storage
The content of section, for the INFORMATION OF INCOMPLETE for preventing from reading, therefore, read every time in the present invention and at least read continuous page two interior
Hold, be only to be introduced by taking the function code stored in SD card as an example in above example, it is to be understood that stored in SD card
Other guide be also to read at least page two of content every time.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention.Though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, in the case where technical solution of the present invention ambit is not departed from, all using the methods and techniques content of the disclosure above to the present invention
Technical scheme makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.Therefore, it is every without departing from
The content of technical solution of the present invention, according to technical spirit of the invention to any simple modification made for any of the above embodiments, equivalent
Change and modification, still fall within the range of technical solution of the present invention protection.
Claims (10)
1. a kind of frequency converter keyboard, it is characterised in that including：The peripheral interface of keyboard CPU and keyboard CPU；
The peripheral interface of the keyboard CPU with one be stored with frequency converter function code SD card it is pluggable be connected；
The function code of the SD card memory storage after the SD card is pulled up and is inserted on computer from frequency converter keyboard, on computers
Modify；The SD card of the function code after the modification that is stored with is good pull up and be inserted on frequency converter keyboard from computer after by make
With.
2. frequency converter keyboard according to claim 1, it is characterised in that also include：LCDs, touch-screen control core
Piece；
The touch-screen control chip, for gathering the touch information on the LCDs, by touch information correspondence
Coordinate be sent to the keyboard CPU.
3. frequency converter keyboard according to claim 1, it is characterised in that also including wireless communication module；The channel radio
Letter module, for the radio communication between keyboard CPU and frequency converter.
4. the frequency converter keyboard according to claim 1 or 3, it is characterised in that also including wire communication module；
The wire communication module, for the wire communication between keyboard CPU and frequency converter.
5. frequency converter keyboard according to claim 1, it is characterised in that also including the external key of connection keyboard CPU, institute
External key is stated for controlling the running status of frequency converter.
6. frequency converter keyboard according to claim 3, it is characterised in that the wireless communication module includes two ZigBee
Module, respectively the first ZigBee module and the second ZigBee module；
Wherein, first ZigBee module connects frequency converter by first serial, and second ZigBee module passes through second
Serial ports connection keyboard CPU；Radio communication is carried out between first ZigBee module and the second ZigBee module.
7. frequency converter keyboard according to claim 1, it is characterised in that be additionally operable to store at least one state in the SD card
The character library and image data of the language of family.
8. the method for a kind of frequency converter keyboard read functions code, it is characterised in that be applied to include the frequency converter of pluggable SD card
In keyboard, store the function code allocation list of frequency converter in the SD card, the function code of the SD card memory storage the SD card from
After pulling up and be inserted on computer on frequency converter keyboard, modify on computers；The SD card of the function code after the modification that is stored with is good
Be can be used after being pulled up from computer and be inserted on frequency converter keyboard；The function code allocation list Fragmentation, the SD card is
Run the carrier of the function code allocation list；Comprise the following steps：
Judge whether the corresponding function code information of function code group name for needing to read user's selection, the function code group name list exists
Further menu display interface shows；
When the corresponding function code information of the function code group name for needing reading user to select, read into second-level menu display interface
The corresponding function code information of function code group name of the selection.
9. the method for frequency converter keyboard read functions according to claim 8 code, it is characterised in that described to enter two grades of dishes
Single display interface reads the corresponding function code information of function code group name of the selection, specifically includes：
Continuous page two of function code information is read every time, and the function code of the selection is extracted from the function code information of page two for reading
The corresponding function code information of group.
10. the method for frequency converter keyboard read functions according to claim 9 code, it is characterised in that read N and N+1
Two contents of continuous page, extract the display information of needs from the N pages, when N EOPs address is in certain page of function code character
During the centre of name, the function code information of the remaining function code group name is extracted from the N+1 pages and carries out showing complete function code
Group name.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681182.9A CN103701471B (en) | 2013-12-12 | 2013-12-12 | A kind of frequency converter keyboard and read method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681182.9A CN103701471B (en) | 2013-12-12 | 2013-12-12 | A kind of frequency converter keyboard and read method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103701471A CN103701471A (en) | 2014-04-02 |
| CN103701471B true CN103701471B (en) | 2017-07-04 |
Family
ID=50362890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310681182.9A Active CN103701471B (en) | 2013-12-12 | 2013-12-12 | A kind of frequency converter keyboard and read method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103701471B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331256A (en) * | 2014-11-24 | 2015-02-04 | 中国航空工业集团公司洛阳电光设备研究所 | Personal parameter storage device and storage method of airborne head-up display |
| CN104656541A (en) * | 2015-03-03 | 2015-05-27 | 浙江新富凌电气股份有限公司 | High-voltage frequency converter provided with mobile storage |
| CN105302017A (en) * | 2015-09-28 | 2016-02-03 | 深圳市易驱电气有限公司 | Frequency converter function code parameter quick lookup device and method |
| CN108169591B (en) * | 2017-12-13 | 2020-11-24 | 深圳市英威腾电气股份有限公司 | Frequency converter keyboard, frequency converter and frequency converter identification method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440141A (en) * | 2013-06-28 | 2013-12-11 | 株洲南车时代电气股份有限公司 | Program writing device and system for use in DOS (Disk Operating System) for display and method thereof |
| CN103438012A (en) * | 2013-08-30 | 2013-12-11 | 重庆哈丁科技有限公司 | Frequency modulation type wind speed control and display system and setting method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI224746B (en) * | 2002-10-25 | 2004-12-01 | Via Tech Inc | Keyboard control circuit of universal serial bus (USB) interface |
| US7299309B2 (en) * | 2005-07-14 | 2007-11-20 | Vetra Systems Corporation | Method and apparatus for protocol and code converter |
| CN102693092A (en) * | 2012-05-29 | 2012-09-26 | 江苏斯菲尔电气股份有限公司 | Realizing method for display menu customizing of power instrument |
-
2013
- 2013-12-12 CN CN201310681182.9A patent/CN103701471B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440141A (en) * | 2013-06-28 | 2013-12-11 | 株洲南车时代电气股份有限公司 | Program writing device and system for use in DOS (Disk Operating System) for display and method thereof |
| CN103438012A (en) * | 2013-08-30 | 2013-12-11 | 重庆哈丁科技有限公司 | Frequency modulation type wind speed control and display system and setting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103701471A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103701471B (en) | A kind of frequency converter keyboard and read method | |
| CN108776648A (en) | Data transmission method, system and FPGA isomeries accelerator card and storage medium | |
| CN103607718B (en) | Intelligent wireless network communication optimization equipment | |
| US20090083234A1 (en) | Intelligent Computing Device Agent System For Automatic Recognition Of Multi User Computing Environment And Information Sharing Setup | |
| CN102065568B (en) | Data descriptor-based medium access control (MAC) software and hardware interaction method and hardware realization device | |
| CN101719151A (en) | Bluetooth-based information retrieval and acquisition method and Bluetooth-based information retrieval and acquisition device | |
| CN102375918A (en) | Interaction virtual role system between facilities | |
| CN103092648B (en) | A kind of image upgrade method, system and subscriber equipment and personal computer | |
| CN104915302B (en) | Data transmission processing method and data link | |
| CN103279061A (en) | Interface extensible programming method based on DSP platform | |
| CN105488985B (en) | Low-voltage acquisition terminal supporting object-oriented communication protocol | |
| CN110362364A (en) | Software Development Kit funcall method, system and electronic equipment and medium | |
| CN100409150C (en) | Method for raising communication speed of HID equipment | |
| CN105630718A (en) | Electronic device for providing instant switching and sharing of universal serial bus electronic equipment by host | |
| CN106856441A (en) | VIM systems of selection and device in NFVO | |
| CN108773205A (en) | Intelligent printing device and intelligent printing control method | |
| CN106535349A (en) | Combined electromagnetic wave data transmission method and system | |
| CN104991769A (en) | Hostless computer | |
| CN107391332A (en) | A kind of storage system and debugging system | |
| CN106527900A (en) | Terminal control method and terminal | |
| CN111666238A (en) | Data transmission device and method | |
| CN208225049U (en) | A kind of computer data is to passing on-line unit | |
| CN202495661U (en) | USB conversion device | |
| CN107835108A (en) | Mac-layer protocol stack verification platform based on OpenWrt | |
| CN101741880A (en) | Power service mobile service system-based method for interacting wireless remote data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |