CN201742394U - Wireless transceiver for Internet of Things - Google Patents
Wireless transceiver for Internet of Things Download PDFInfo
- Publication number
- CN201742394U CN201742394U CN2010202734350U CN201020273435U CN201742394U CN 201742394 U CN201742394 U CN 201742394U CN 2010202734350 U CN2010202734350 U CN 2010202734350U CN 201020273435 U CN201020273435 U CN 201020273435U CN 201742394 U CN201742394 U CN 201742394U
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- circuit
- microcontroller
- radio
- internet
- wireless transceiver
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Abstract
The utility model relates to a wireless transceiver for the Internet of Things, which aims to solve the problems of multiple modules, complex circuits, high price and difficult guarantee of performance in the prior art. The wireless transceiver for the Internet of Things comprises a radio-frequency circuit, a power supply, a microcontroller, an I/O circuit and an indicating lamp, wherein the radio-frequency circuit, the I/O circuit and the indicating lamp are connected with the microcontroller, and the power supply supplies power for the radio-frequency circuit, the microcontroller, the I/O circuit and the indicating lamp; the radio-frequency circuit comprises a CC1101 radio-frequency integrated chip and a transmitting power-amplifying circuit; and an antenna adopts a whip antenna and is connected with the radio-frequency circuit through an SMA joint. The utility model simplifies the whole circuit through the CC1101 radio-frequency integrated chip and an MSP400F2132 microcontroller, reduces the cot and power consumption, and improves the transmission performance.
Description
Technical field
The utility model relates to field of wireless transmission, and in particular, the utility model is the Internet of Things wireless transceiver about Internet of Things.
Background technology
At present, data-transmission type Internet of Things wireless transceiver is mainly used in the automatic centralized meter-reading system of building, is specially adapted to radio meter register occasions such as water meter, gas meter, hotlist, ammeter; Industry remote sensing, remote measurement communication; Home wireless security protection, monitoring The Cloud Terrace, power of computer room, Fan Equipment wireless remote-controlled alarm system; Active RFID tag identification; Intelligent wireless terminal, Medical Instruments such as POS system, PDA; Electronic stop plate, intelligent public transportation dispatching system; It is more and more indispensable part on modern each big civilian consumer electronics, the industry control electron-like function.
Patent Office of the People's Republic of China discloses a CN101534133A document on September 16th, 2009, name is called a kind of radio receiving-transmitting unit, and this machine comprises: digital circuit blocks, analog module, switching controls module, selector switch, transmitting-receiving modular converter and antenna; Wherein, analog module comprises emission path and multiplexing reception path; By switching controls module controls transmitting-receiving modular converter and selector switch work, when the transmitting-receiving modular converter was connected antenna with the emission path, selector switch was connected the digital pre-distortion DPD processing unit of digital circuit blocks, and multiplexing reception path is received path as feedback; When the transmitting-receiving modular converter was connected antenna and multiplexing reception path, selector switch was connected the digital signal processing unit of digital circuit blocks.Its shortcoming is to use module many, the circuit complexity, and the price height, performance is difficult to guarantee.
Summary of the invention
The utility model has solved existing in prior technology and has used module many, the circuit complexity, and the price height, the problem that performance is difficult to guarantee provides a kind of Internet of Things wireless transceiver, and use module seldom just can reach the requirement of wireless transmission.
The technical scheme that its technical problem that solves the utility model adopts is: the utility model comprises radio circuit, power supply, microcontroller, I/O circuit, indicator light, described radio circuit, I/O circuit, indicator light link to each other with microcontroller, power supply is radio circuit, microcontroller, I/O circuit, indicator light power supply, and described radio circuit comprises CC1101 radio frequency integrated chip and emission power amplifier; Described antenna is a whip antenna, and links to each other with radio circuit by sub-miniature A connector.The data that the user will need to send send to microcontroller with the UART communication format, and data are amplified by the emission power amplifier in the radio circuit after handling through microcontroller MCU, via antenna data are sent again; When antenna received effective wireless signal, microcontroller MCU control radio circuit was read data, and with the UART form data is exported; Described radio circuit is worked in the frequency range of 433MHz ~ 442MHz, and transmitting power is 50MW, emission current≤100mA, received current≤25mA, sleep current≤40uA; Can be for a long time under 3.0 ~ 3.6V operating voltage normal steady operation; Microcontroller realizes easily and fast that by the I/O circuit module status switches, and indicator light can be pointed out intuitively to the various running statuses of microcontroller and radio circuit; Whip antenna links to each other with radio circuit by sub-miniature A connector, makes radio circuit can obtain the gain bigger than helical antenna, and performance is more stable.
As preferably, described microcontroller is the MSP430F2132 microcontroller.The MSP430F2132 microcontroller has dependable performance, cheap, low in power consumption, the multiple speed of wireless receiving and dispatching and different address, channels can onlinely be set, multiple speed of serial communication and multiple UART data format can onlinely be set, can realize unlimited data length data transmit-receive, even under powering-off state, also can keep configuration information, convenient operation next time.
As preferably, described microcontroller is the connecting interface circuit also.Pass through interface circuit, the user can directly connect single-chip microcomputer, and only need simple UART to order or simple control timing level, just can carry out reception to data-transmission type Internet of Things wireless transceiver, emission, sleep, speed, channel, multiple operation such as communication pattern, interference problem when directly connecting by peripheral apparatus between two or more products of avoiding within module efficient communication scope, needing to communicate by letter on the issuable line configuring, avoided the technical barrier in the design of radio frequency hardware and software, improve the comprehensive competitive power of a whole set of products simultaneously, make this transceiver more easily be designed into the terminal consumption class, in the terminal control series products.
As preferably, be provided with radome at described radio circuit, radome surrounds whole radio circuit.Radio circuit, and is done good earth and is handled its comprehensive covering with radome; Reduce outside high-frequency noise greatly to the radio circuit Effect on Performance.
As preferably, described interface circuit comprises 2.0 single contact pins.Single contact pin front end increases by two contacts that directly link to each other with radio circuit ground, the user can with this contact with systematically link to each other and then the ground connection property of raising radio-frequency module integral body.
The beneficial effects of the utility model are: by adopting CC1101 radio frequency integrated chip and MSP430F2132 microcontroller, simplified entire circuit, reduced cost, reduced power consumption, improved transmission performance.
Description of drawings
Fig. 1 is that a kind of circuit of the utility model Internet of Things wireless transceiver connects block diagram.
Among the figure: 1. microcontroller, 2. radio circuit, 3.I/O circuit, 4. power supply, 5. antenna, 6. interface circuit, 7. indicator light.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail.
Embodiment:
The Internet of Things wireless transceiver of present embodiment, referring to Fig. 1, comprise MSP430F2132 type microcontroller 1 and the radio circuit 2, I/O circuit 3, interface circuit 6, the indicator light 7 that link to each other with microcontroller 1, radio circuit 2 connects antenna 5, and power supply 4 is microcontroller 1, radio circuit 2, I/O circuit 3, interface circuit 6 power supplies; Radio circuit 2 adopts CC1101 radio frequency integrated chip and has comprised the emission power amplifier, is provided with radome at radio circuit 2; Antenna 5 adopts whip antenna and has comprised sub-miniature A connector; Interface circuit 6 comprises 2.0 single contact pins.
The data that needs are sent send to microcontroller 1 with the UART communication format, after data are handled through microcontroller 1, amplified via antenna 5 by the emission power amplifier in the radio circuit 2 again data are sent; When antenna 5 received effective wireless signal, microcontroller 1 control radio circuit 2 was read data, and with the UART form data is exported; Radio circuit 2 is worked in the frequency range of 433MHz ~ 442MHz, and transmitting power is 50MW, emission current≤100mA, received current≤25mA, sleep current≤40uA; Can be for a long time under 3.0 ~ 3.6V operating voltage normal steady operation; Microcontroller 1 realizes easily and fast that by I/O circuit 3 module status switches, and indicator light 7 can be pointed out intuitively to the various running statuses of microcontroller 1 and radio circuit 2.
Above-described embodiment is one of preferred plan of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (5)
1. Internet of Things wireless transceiver, comprise radio circuit, power supply, microcontroller, I/O circuit, indicator light, described radio circuit, I/O circuit, indicator light link to each other with microcontroller, power supply is radio circuit, microcontroller, I/O circuit, indicator light power supply, it is characterized in that: described radio circuit comprises CC1101 radio frequency integrated chip and emission power amplifier; Described antenna is a whip antenna, and links to each other with radio circuit by sub-miniature A connector.
2. Internet of Things wireless transceiver according to claim 1 is characterized in that: described microcontroller is the MSP430F2132 microcontroller.
3. Internet of Things wireless transceiver according to claim 1 and 2 is characterized in that: described microcontroller is the connecting interface circuit also.
4. Internet of Things wireless transceiver according to claim 1 and 2 is characterized in that: be provided with radome at described radio circuit, radome surrounds whole radio circuit.
5. Internet of Things wireless transceiver according to claim 3 is characterized in that: described interface circuit comprises 2.0 single contact pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202734350U CN201742394U (en) | 2010-07-28 | 2010-07-28 | Wireless transceiver for Internet of Things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202734350U CN201742394U (en) | 2010-07-28 | 2010-07-28 | Wireless transceiver for Internet of Things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201742394U true CN201742394U (en) | 2011-02-09 |
Family
ID=43557674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202734350U Expired - Lifetime CN201742394U (en) | 2010-07-28 | 2010-07-28 | Wireless transceiver for Internet of Things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201742394U (en) |
-
2010
- 2010-07-28 CN CN2010202734350U patent/CN201742394U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
|
| CX01 | Expiry of patent term |