CN2768335Y - Universal USB interface wireless data transmission module - Google Patents
Universal USB interface wireless data transmission module Download PDFInfo
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- CN2768335Y CN2768335Y CN 200420115380 CN200420115380U CN2768335Y CN 2768335 Y CN2768335 Y CN 2768335Y CN 200420115380 CN200420115380 CN 200420115380 CN 200420115380 U CN200420115380 U CN 200420115380U CN 2768335 Y CN2768335 Y CN 2768335Y
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- usb interface
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- data transmission
- control unit
- transmission module
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Abstract
The utility model relates to a universal USB interface wireless data transmission module comprising a microprocessing unit, a USB interface, a control unit of the USB interface and a radio-frequency unit. The radio-frequency unit connects to the microprocessing unit, which connects to the USB interface via the control unit of the USB interface. The radio-frequency unit receives wireless signals and transmits the wireless signals to the microprocessing unit, which processes the signals and then transmits them to the control unit of the USB. The signal is controlled by the control unit of the USB and then is transmitted out via the USB interface. The universal USB interface wireless data transmission module is provided with high transmission speed, strong anti-interference capability and high commonality. Besides, system upgrade to portable devices can be conveniently operated.
Description
Technical field
The utility model relates to a kind of data transmission module, refers in particular to a kind of Common USB interface wireless data transmission module that can be connected use with various industrial equipments.
Background technology
Along with the extensive use of computer in industry, the control area net network also deeply is applied among all trades and professions.Existing many control system, if adopt the unit control mode more and more to be difficult to satisfy the requirement of Equipment Control, because often the equipment that we controlled is an elementary cell of whole system, it had both needed outside some necessary information of input, simultaneously, also need operational factor and state to outside output self.All these all require us to adopt the Control Network technology, and numerous equipment are organically fused, and move safely and reliably to guarantee whole system.
At present, in the fieldbus that China uses, RS-485, RS-422 use the most general.When the user will as PC, when being connected to the communication network that is made of RS-485, RS-422, then must make the level conversion between RS-232 and RS-485, the RS-422 with measured RS-232 interface equipment.Traditional way is communication adapter of expansion in equipment, realizes level conversion by the communication adapter, and internal host reads or write data again by parallel bus.Obviously, there is following shortcoming in this method for designing:
1, because adapter is based on a certain bus standard expansion, rather than based on the RS-232 level standard, so its range of application is restricted, can only be suitable for a kind of bus (can not insert STD bus or user-defined bus) by a kind of adapter as the ISA adapter, its versatility is relatively poor;
Though 2 realizations only is level conversion, owing to need the interface and the UART that increases a standard of consideration and expansion bus, and need take other precious resources of system, make hardware and software become too complicated;
3, the complicated hardware design has increased the number and the circuit board face of components and parts greatly, makes the cost of adapter too high;
4, owing to adopt built-in plug-in card mode, make the change communication mode cumbersome, be set to full duplex mode etc. as the half-duplex operation mode;
5, maintenance and test are also cumbersome;
6, transmission speed is slow, and transmission range is short, and anti-interference is also lower.
Summary of the invention
The purpose of this utility model is to propose a kind of Common USB interface wireless data transmission module, and it is fast to have transmission speed, and antijamming capability is strong, and has very strong versatility, is convenient to portable set is carried out system upgrade.
The purpose of this utility model is achieved in that a kind of Common USB interface wireless data transmission module, include microprocessing unit, USB interface, USB interface control unit and radio frequency unit, described radio frequency unit is connected with described microprocessing unit, and described microprocessing unit is connected in described USB interface by the USB interface control unit; Described radio frequency unit receives wireless signal, and this wireless signal is sent to described microprocessing unit, described microprocessing unit sends described USB control unit to after to signal processing, and described USB control unit is sent out by described USB interface its control back.
Described microprocessing unit can be the MSP430F1491 chip.
Described radio frequency unit can be the RF401 chip.
Effect of the present utility model is significant: microprocessing unit that the utility model adopted and USB control unit have the characteristic of high-performance, low-power consumption, effectively raise antijamming capability, have reduced the error rate.
The utility model can be connected with industrial equipment, and has following characteristics:
1, transmitting power is low, only is 20mW;
2, high anti-jamming capacity and low error rate: it adopts efficient forward error correction channel technology, has improved anti-bursty interference of data and anti-jamming capacity at random;
3, transmission performance is good: especially in aerial position greater than 3 meters, transmission range is during less than 200m;
4, transparent data transmission;
5, support hot plug, and compatible, highly versatile.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
The physical circuit figure that Fig. 2 adopts for the utility model.
Embodiment
As shown in Figure 1 and Figure 2, the utility model is a kind of Common USB interface wireless data transmission module, include microprocessing unit, USB interface, USB interface control unit and radio frequency unit, described radio frequency unit is connected with described microprocessing unit, and described microprocessing unit is connected in described USB interface by the USB interface control unit; Described radio frequency unit receives wireless signal, and this wireless signal is sent to described microprocessing unit, described microprocessing unit sends described USB control unit to after to signal processing, and described USB control unit is sent out by described USB interface its control back.
In actual applications, the utility model can be connected with various industrial equipments or some portable industrial equipments, realizes that industrial equipment and control centre carry out exchanges data and to the control of equipment.Radio frequency unit described in the utility model can be the RF401 chip, because the characteristic of this chip itself, this chip can receive the wireless signal that control centre sends, and send this signal to microprocessor unit and handle, be sent to industrial equipment by the USB control unit by USB interface again, so that to its control; Industrial equipment is responded this control signal, this back-signalling further sends described microprocessing unit to by the USB control unit and handles, described microprocessing unit sends signal to radio frequency unit again, be sent to control centre by radio frequency unit, reach the purpose of Long-distance Control, and transmission speed is fast, strong interference immunity.
Described in the present embodiment microprocessing unit can be the MSP430F1491 chip, this chip feature and function are that the content of prior art does not repeat them here, physical circuit of the present utility model can be referring to shown in Figure 2, and the element in this circuit also can adopt other circuit or the electric component of realizing identical function in the prior art to realize.
USB control unit described in the utility model and USB interface can adopt existing technology to realize.Because making the utility model can make things convenient for flash memory, the USB interface that the utility model had is connected, just enlarged the memory space of the industrial equipment that is connected with the utility model to a great extent, and without any change, solved the too high problem of industrial equipment upgrade cost for the structure of industrial equipment and internal circuit.
The utlity model has very strong versatility, can be applicable to short-distance wireless transfer of data, data acquisition, radio meter register, industrial remote control and remote measurement, automatic data collection and building automatic gate control system, when using in above-mentioned field, the utility model can be connected with it by USB interface can realize rapid data transmission function of the present utility model.
Claims (3)
1, a kind of Common USB interface wireless data transmission module, it is characterized in that, include microprocessing unit, USB interface, USB interface control unit and radio frequency unit, described radio frequency unit is connected with described microprocessing unit, and described microprocessing unit is connected in described USB interface by the USB interface control unit; Described radio frequency unit receives wireless signal, and this wireless signal is sent to described microprocessing unit, described microprocessing unit sends described USB control unit to after to signal processing, and described USB control unit is sent out by described USB interface its control back.
2, Common USB interface wireless data transmission module as claimed in claim 1 is characterized in that, described microprocessing unit can be the MSP430F1491 chip.
3, Common USB interface wireless data transmission module as claimed in claim 1 is characterized in that, described radio frequency unit can be the RF401 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115380 CN2768335Y (en) | 2004-11-22 | 2004-11-22 | Universal USB interface wireless data transmission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115380 CN2768335Y (en) | 2004-11-22 | 2004-11-22 | Universal USB interface wireless data transmission module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768335Y true CN2768335Y (en) | 2006-03-29 |
Family
ID=36682203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115380 Expired - Fee Related CN2768335Y (en) | 2004-11-22 | 2004-11-22 | Universal USB interface wireless data transmission module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768335Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152642A (en) * | 2010-12-15 | 2011-08-17 | 珠海天威技术开发有限公司 | Device and method for testing ink box chip of printer |
| CN110264693A (en) * | 2019-07-03 | 2019-09-20 | 南京荟学智能科技有限公司 | A kind of device and method that wired dry contact signal is converted to wireless signal transmission |
-
2004
- 2004-11-22 CN CN 200420115380 patent/CN2768335Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152642A (en) * | 2010-12-15 | 2011-08-17 | 珠海天威技术开发有限公司 | Device and method for testing ink box chip of printer |
| CN102152642B (en) * | 2010-12-15 | 2013-08-21 | 珠海天威技术开发有限公司 | Device and method for testing ink box chip of printer |
| CN110264693A (en) * | 2019-07-03 | 2019-09-20 | 南京荟学智能科技有限公司 | A kind of device and method that wired dry contact signal is converted to wireless signal transmission |
| CN110264693B (en) * | 2019-07-03 | 2020-12-25 | 南京荟学智能科技有限公司 | Device and method for converting wired main contact point signal into wireless signal for transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shidai Corp. Group Assignor: Beijing Time Technologies Co., Ltd. Contract fulfillment period: 2009.5.12 to 2014.5.11 Contract record no.: 2009990000496 Denomination of utility model: Universal USB interface wireless data transmission module Granted publication date: 20060329 License type: Exclusive license Record date: 20090514 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.12 TO 2014.5.11; CHANGE OF CONTRACT Name of requester: SHIDAI GROUP CO. Effective date: 20090514 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20111122 |