CN201893779U - Wireless data transmission module - Google Patents
Wireless data transmission module Download PDFInfo
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- CN201893779U CN201893779U CN2010205196646U CN201020519664U CN201893779U CN 201893779 U CN201893779 U CN 201893779U CN 2010205196646 U CN2010205196646 U CN 2010205196646U CN 201020519664 U CN201020519664 U CN 201020519664U CN 201893779 U CN201893779 U CN 201893779U
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- wireless
- wireless data
- circuit
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- control module
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Abstract
The utility model discloses a wireless data transmission module which comprises a control module, a data interface, a 232 level conversion circuit, a wireless transceiver circuit and an antenna, wherein the data interface is connected with the 232 level data end of the 232 level conversion circuit, the TTL (Transistor-transistor logic) level data end of the 232 level conversion circuit is connected with the TTL level data input/output end of the control module; the control signal output end of the control module is connected with the control signal input end of the wireless transceiver circuit; the wireless data input/output end of the control module is connected with the wireless data input/output end of the wireless transceiver circuit; and the wireless signal transceiver end of the wireless transceiver circuit is connected with the antenna. The wireless data transmission module can realize the wireless transmission of serial data, does not need to lay dedicated communication lines, can overcome the defects that the construction period of the serial telecommunication line laying is long and the cost is high, and can reduce the construction cost and maintenance cost.
Description
[technical field]
The utility model relates to serial data communication, relates in particular to a kind of wireless data transfer module that is used for serial data communication.
[background technology]
Serial data communication is widely used in technical fields such as data acquisition, information household appliances, Industry Control, traditional serial data communication adopts wired transmission means, use inconvenience, need the engineering wiring under many circumstances, the communication line of laying special use is long in time limit, cost is high.Construction cost and maintenance cost have been increased.
[summary of the invention]
The technical problems to be solved in the utility model provides a kind of wireless data transfer module that can realize the serial data wireless transmission, to reduce long in time limit, the defect of high cost of serial communication line in the prior art, reducings the construction costs and maintenance cost.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of wireless data transfer module, comprise control module, data-interface, 232 level shifting circuits, wireless transceiver circuit and antenna, described data-interface connects 232 level data ends of 232 level shifting circuits, the Transistor-Transistor Logic level data input/output terminal of the Transistor-Transistor Logic level data terminal link control module of 232 level shifting circuits; The control signal output ends of control module connects the signal input end of wireless transceiver circuit, the wireless data input/output terminal of the wireless data input and output termination wireless transceiver circuit of control module; The wireless signal sending and receiving end of wireless transceiver circuit connects antenna.
Described control module comprises microprocessor and peripheral circuit, described wireless transceiver circuit comprises radio transmitting and receiving chip and antenna-matching circuit, and the wireless data output of described control module, wireless data input, clock signal output terminal, enable signal output, interrupt signal receiving terminal connect wireless data input, wireless data output, clock signal input terminal, enable signal receiving terminal, the interrupt signal output of radio transmitting and receiving chip respectively; Described antenna-matching circuit connects antenna and radio transmitting and receiving chip radiofrequency signal sending and receiving end.
Described radio transmitting and receiving chip comprises radio-frequency (RF) transmit-receive circuit, base band signal process circuit, data processing circuit and controller, described radio-frequency (RF) transmit-receive circuit connects the base band signal process circuit, the base band signal process circuit connects data processing circuit, and data processing circuit connects controller; Described controller comprises wireless data input, wireless data output, clock signal input terminal, enable signal receiving terminal, interrupt signal output, and the wireless data input of controller, wireless data output, clock signal input terminal, enable signal receiving terminal, interrupt signal output are connected with wireless data output, wireless data input, clock signal output terminal, enable signal output, the interrupt signal receiving terminal of control module respectively; Described antenna-matching circuit connects the radiofrequency signal sending and receiving end of radio-frequency (RF) transmit-receive circuit.。
The utility model wireless data transfer module can be realized the wireless transmission of serial data, no longer needs to lay special-purpose communication line, can reduce long in time limit, the defect of high cost of serial communication line in the prior art, reducings the construction costs and maintenance cost.
[description of drawings]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the theory diagram of the utility model wireless data transfer module embodiment.
Fig. 2 is the theory diagram of the utility model wireless data transfer module embodiment radio transmitting and receiving chip.
Fig. 3 is the circuit theory diagrams of the utility model wireless data transfer module embodiment.
[embodiment]
In the embodiment of Fig. 1 the utility model wireless data transfer module extremely shown in Figure 3, wireless data transfer module, comprise control module, 232 data-interfaces, 232 level shifting circuits, wireless transceiver circuit and antenna, 232 data-interfaces connect 232 level data ends of 232 level shifting circuits, the Transistor-Transistor Logic level data input/output terminal of the Transistor-Transistor Logic level data terminal link control module of 232 level shifting circuits; The control signal output ends of control module connects the signal input end of wireless transceiver circuit, the wireless data input/output terminal of the wireless data input and output termination wireless transceiver circuit of control module; The wireless signal sending and receiving end of wireless transceiver circuit connects antenna.
232 level shifting circuits comprise level transferring chip U2 (MAX232) and peripheral circuit.The DRX of 232 data-interface CON2, DTX pin meet 232 level data pin DRX, the DTX of 232 level shifting circuits respectively.
Control module comprises microprocessor U1 (ATMEGA) and peripheral circuit, and wireless transceiver circuit comprises radio transmitting and receiving chip U3 and antenna-matching circuit.The Transistor-Transistor Logic level data pin DRX1 of 232 level shifting circuits, Transistor-Transistor Logic level data pin DRX1, the DTX1 of DTX1 link control module.Antenna-matching circuit comprises inductance L 1, L2, L3 and capacitor C 1, C2, C9.
The wireless data input SDO of control module, wireless data output SDI, clock signal output terminal SCK, enable signal output NSEL, interrupt signal receiving terminal NIRQ connect wireless data output SDO, wireless data input SDI, clock signal input terminal SCK, enable signal receiving terminal NSEL, the interrupt signal output NIRQ of radio transmitting and receiving chip respectively; Antenna-matching circuit connects antenna and radio transmitting and receiving chip radiofrequency signal sending and receiving end RF1 and RF2.
Radio transmitting and receiving chip U3 comprises radio-frequency (RF) transmit-receive circuit, base band signal process circuit, data processing circuit and controller.Radio-frequency (RF) transmit-receive circuit connects the base band signal process circuit, and the base band signal process circuit connects data processing circuit, and data processing circuit connects controller.Controller comprises wireless data output SDO, wireless data input SDI, clock signal input terminal SCK, enable signal receiving terminal NSEL, interrupt signal output NIRQ, and the wireless data output SDO of controller, wireless data input SDI, clock signal input terminal SCK, enable signal receiving terminal NSEL, interrupt signal output NIRQ are connected with wireless data input SDO, wireless data output SDI, clock signal output terminal SCK, enable signal output NSEL, the interrupt signal receiving terminal NIRQ of control module respectively.Antenna-matching circuit connects the radiofrequency signal sending and receiving end RF1 and the RF2 of radio-frequency (RF) transmit-receive circuit.
Claims (3)
1. wireless data transfer module, it is characterized in that, comprise control module, data-interface, 232 level shifting circuits, wireless transceiver circuit and antenna, described data-interface connects 232 level data ends of 232 level shifting circuits, the Transistor-Transistor Logic level data input/output terminal of the Transistor-Transistor Logic level data terminal link control module of 232 level shifting circuits; The control signal output ends of control module connects the signal input end of wireless transceiver circuit, the wireless data input/output terminal of the wireless data input and output termination wireless transceiver circuit of control module; The wireless signal sending and receiving end of wireless transceiver circuit connects antenna.
2. wireless data transfer module according to claim 1, it is characterized in that, described control module comprises microprocessor and peripheral circuit, described wireless transceiver circuit comprises radio transmitting and receiving chip and antenna-matching circuit, and the wireless data output of described control module, wireless data input, clock signal output terminal, enable signal output, interrupt signal receiving terminal connect wireless data input, wireless data output, clock signal input terminal, enable signal receiving terminal, the interrupt signal output of radio transmitting and receiving chip respectively; Described antenna-matching circuit connects antenna and radio transmitting and receiving chip radiofrequency signal sending and receiving end.
3. wireless data transfer module according to claim 2, it is characterized in that, described radio transmitting and receiving chip comprises radio-frequency (RF) transmit-receive circuit, base band signal process circuit, data processing circuit and controller, described radio-frequency (RF) transmit-receive circuit connects the base band signal process circuit, the base band signal process circuit connects data processing circuit, and data processing circuit connects controller; Described controller comprises wireless data input, wireless data output, clock signal input terminal, enable signal receiving terminal, interrupt signal output, and the wireless data input of controller, wireless data output, clock signal input terminal, enable signal receiving terminal, interrupt signal output are connected with wireless data output, wireless data input, clock signal output terminal, enable signal output, the interrupt signal receiving terminal of control module respectively; Described antenna-matching circuit connects the radiofrequency signal sending and receiving end of radio-frequency (RF) transmit-receive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205196646U CN201893779U (en) | 2010-09-07 | 2010-09-07 | Wireless data transmission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205196646U CN201893779U (en) | 2010-09-07 | 2010-09-07 | Wireless data transmission module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893779U true CN201893779U (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205196646U Expired - Fee Related CN201893779U (en) | 2010-09-07 | 2010-09-07 | Wireless data transmission module |
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| CN (1) | CN201893779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275457A (en) * | 2018-03-15 | 2019-09-24 | 沈阳唯实软件有限公司 | A kind of satellite system data inspection real-time collector |
-
2010
- 2010-09-07 CN CN2010205196646U patent/CN201893779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275457A (en) * | 2018-03-15 | 2019-09-24 | 沈阳唯实软件有限公司 | A kind of satellite system data inspection real-time collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20170907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |