CN202940975U - Wireless transmission module - Google Patents
Wireless transmission module Download PDFInfo
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- CN202940975U CN202940975U CN 201220664421 CN201220664421U CN202940975U CN 202940975 U CN202940975 U CN 202940975U CN 201220664421 CN201220664421 CN 201220664421 CN 201220664421 U CN201220664421 U CN 201220664421U CN 202940975 U CN202940975 U CN 202940975U
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Abstract
The utility model discloses a wireless transmission module. The wireless transmission module is characterized in that the wireless transmission module comprises a CPU chip, a Flash chip, a SDRAM chip, a data interface unit, an external data interface connector and a wireless signal receiving/transmitting switch, wherein the Flash chip, the SDRAM chip, the data interface unit, the external data interface connector and the wireless signal receiving/transmitting switch are connected with the CPU chip separately, and the CPU chip comprises a wireless processing module. The wireless transmission module has the following advantages: 802.11b/g/n wireless standard TCP/IP/UDP network protocol stacks and UART/GPIO/Ethernet data communication interfaces can be supported, STA/AP mode wireless operations can be supported, routing/bridging mode network architectures can be supported, a selectable built-in onboard or external antenna can be supported, transparent/protocol data transmission modes can be supported, AT+ instruction set configuration can be provided, a friendly Web configuration page can be provided, heartbeat signals and WIFI connect indicators can be supported, the serial port automatic framing function can be supported, a 3.3V single power source is used to supply power, etc.
Description
Technical field
The utility model relates to the wireless transport module in field of wireless transmission, particularly relates to a kind of Internet of Things wireless transport module based on WIFI.
Background technology
Internet of Things is briefly the interconnected of thing and thing, realizes real-time status perception and the real-time intelligent of things are controlled.Obviously wiring does not gear to actual circumstances everywhere, will be that cable network well replenishes and extends and adopt wireless technology as the transmission means of its front end perception data.
Radio Transmission Technology is very abundant at present, comprising: bluetooth, Zigbee, 433M ultrashort wave data radio station, GPRS etc.Owing to having the characteristics such as cheap, low in energy consumption as wireless technologys such as 433M, GPRS, can be by large-scale application in some industries, but due to its technology exists respectively that bandwidth is low, transmission range is near, should not networking, can't incorporate the problem such as IP network, so there is certain application bottleneck in Internet of Things!
WIFI is commonly called as wireless broadband network.Mature technology as present wireless IP transmission because it has long transmission distance, bandwidth is high, networking is easy, is widely used in all trades and professions.Be accompanied by three large operator Large scale construction based on " wireless city " of WIFI technology, its Internet of Things application architecture forms already! The WIFI technology is widely used in power monitoring, oilfield monitoring, environmental monitoring, weather monitoring, water conservancy monitoring, heat supply network monitoring, ammeter monitoring, center monitoring, vehicle guidance, water supply monitoring in Internet of Things, with the PLC of serial ports or 485 interfaces, the expansion of RTU radio function.
Internet of Things transmission technology based on WIFI has the advantage that is difficult to compare, formation along with WIFI wireless coverage network area, how to utilize wireless network to cover advantage wide, the high and low use rate of bandwidth and set up Internet of things system, become a very actual problem.
The utility model content
The technical problem that (one) will solve
The technical problems to be solved in the utility model be propose a kind of can flexible networking, support the wireless transport module of plurality of wireless networks agreement, interface, the network architecture and transmission mode.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of wireless transport module, it is characterized in that described wireless transport module comprises that cpu chip, Flash chip, SDRAM chip, data interface unit, external data interface connector, wireless signal receive/send out switch, wherein Flash chip, SDRAM chip, data interface unit, external data interface connector, wireless signal are received/are sent out switch and be connected with cpu chip respectively, and cpu chip has wireless processing module;
Described wireless transport module is provided with: reseting interface is used for to described wireless transport module input reset signal; Start and complete interface, complete for judging whether described wireless transport module starts; Connect the indication interface, be used for judging whether described wireless transport module is in the networking state; The replacement interface is used for factory reset; Data transmission interface is used for the transmitting-receiving serial data.
(3) beneficial effect
The utility model is by flexible networking and support plurality of wireless networks agreement, interface, the network architecture and transmission mode, by the configuration of AT+ instruction set is provided, the friendly Web configuration page can be provided, support heartbeat signal, WIFI connects the advantages such as indication, the automatic framing function of support serial ports, use 3.3V single power supply.
Description of drawings
Fig. 1 is the internal structure schematic diagram of wireless transport module;
Fig. 2 is the structure pin schematic diagram of wireless transport module;
Fig. 3 is the hardware connection diagram of wireless transport module.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 shows the internal structure schematic diagram of wireless transport module, wireless transport module, comprise that cpu chip 3, Flash chip 4, SDRAM chip 5, data interface unit 6, external data interface connector 7, wireless signal receive/send out switch 2, wherein Flash chip 4, SDRAM chip 5, data interface unit 6, external data interface connector 7, wireless signal are received/are sent out switch 2 and be connected with cpu chip 3 respectively, and cpu chip 3 has wireless processing module 31; Described data interface unit 6 comprises high speed interface 61 and low speed data interface 62; Described wireless transport module comprises that one is received/send out with described wireless signal the WIFI antenna 1 that switch is connected.Described wireless transport module adopts the 3.3V Power supply, and peak current is 350mA.
Fig. 2 shows the structure pin schematic diagram of wireless transport module, and its pin definitions is as shown in table 1.
Table 1
Fig. 3 shows described wireless transport module hardware connection diagram.
NRST: be used for the input module reset signal.Low level effective, described wireless transport module inside have 100k resistance, are connected to the 3.3V power supply.When the energising of described wireless transport module or when breaking down, need to carry out reset operation to described wireless transport module, drag down at least and draw high after 300ms.
NReady: be used for output and start settling signal.Low level effective, described wireless transport module inside have 4.7k resistance, are connected to the 3.3V power supply, described wireless transport module is normal start complete after output low level, can be used for judging whether described wireless transport module starts complete.
NLink: be used for output wireless transport module WIFI and connect index signal.There is 4.7k resistance described wireless transport module inside, is connected to the 3.3V power supply.When described wireless transport module was connected to AP or have WIFI to be connected to described wireless transport module, output low level can be used for judging whether described wireless transport module is in the networking state.
NReload: there is 4.7k resistance described wireless transport module inside, is connected to the 3.3V power supply, can be connected to outer button or configuration pin, when button is pressed, pin is moved to low level, decontroled afterwards, and restarted after described wireless transport module factory reset in 1 second.
UART_TXD/RXD: serial data receiving and transmitting signal.There is 1k resistance described wireless transport module inside, does not need contact resistance at user side.
Above execution mode only is used for explanation the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (1)
1. wireless transport module, it is characterized in that described wireless transport module comprises that cpu chip, Flash chip, SDRAM chip, data interface unit, external data interface connector, wireless signal receive/send out switch, wherein Flash chip, SDRAM chip, data interface unit, external data interface connector, wireless signal are received/are sent out switch and be connected with cpu chip respectively, and cpu chip has wireless processing module;
Described wireless transport module is provided with: reseting interface is used for to described wireless transport module input reset signal; Start and complete interface, complete for judging whether described wireless transport module starts; Connect the indication interface, be used for judging whether described wireless transport module is in the networking state; The replacement interface is used for factory reset; Data transmission interface is used for the transmitting-receiving serial data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664421 CN202940975U (en) | 2012-12-06 | 2012-12-06 | Wireless transmission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664421 CN202940975U (en) | 2012-12-06 | 2012-12-06 | Wireless transmission module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940975U true CN202940975U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664421 Expired - Fee Related CN202940975U (en) | 2012-12-06 | 2012-12-06 | Wireless transmission module |
Country Status (1)
| Country | Link |
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| CN (1) | CN202940975U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595587A (en) * | 2013-11-13 | 2014-02-19 | 杭州华三通信技术有限公司 | Information transmission method and device |
| CN104113423A (en) * | 2014-07-17 | 2014-10-22 | 福建星网锐捷网络有限公司 | Network equipment |
-
2012
- 2012-12-06 CN CN 201220664421 patent/CN202940975U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595587A (en) * | 2013-11-13 | 2014-02-19 | 杭州华三通信技术有限公司 | Information transmission method and device |
| CN103595587B (en) * | 2013-11-13 | 2016-06-08 | 杭州华三通信技术有限公司 | A kind of information transferring method and device |
| CN104113423A (en) * | 2014-07-17 | 2014-10-22 | 福建星网锐捷网络有限公司 | Network equipment |
| CN104113423B (en) * | 2014-07-17 | 2017-08-25 | 福建星网锐捷网络有限公司 | A kind of network equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai High-Flying Electronics Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 201203, room 1, building 3000, 1002 East Dragon Road, Shanghai, Pudong New Area Patentee after: Shanghai High-Flying Electronics Technology Co., Ltd. Address before: 201203 Shanghai city Pudong New Area Sichuan Road No. 365, building 7, room 511 Patentee before: Shanghai High-Flying Electronics Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20171206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |