CN201742400U - Wireless transceiver for Internet of things - Google Patents
Wireless transceiver for Internet of things Download PDFInfo
- Publication number
- CN201742400U CN201742400U CN2010202733540U CN201020273354U CN201742400U CN 201742400 U CN201742400 U CN 201742400U CN 2010202733540 U CN2010202733540 U CN 2010202733540U CN 201020273354 U CN201020273354 U CN 201020273354U CN 201742400 U CN201742400 U CN 201742400U
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- wireless transceiver
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Abstract
The utility model relates to a wireless transceiver for the Internet of things and aims to solve the problems of more used modules, complex circuit, high price and difficultly guaranteed 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. The radio frequency circuit, the I/O circuit and the indicating lamp are connected with the microcontroller. The power supply supplies power to the radio frequency circuit, the microcontroller, the I/O circuit and the indicating lamp. The radio frequency circuit comprises a CC1101E radio frequency integrated chip and a transmitting power amplification circuit. An antenna is a whip antenna and is connected with the radio frequency circuit by an SMA interface. The utility model simplifies the whole circuit, reduces cost, reduces power consumption and improves transmission performance by adopting the CC1101E radio frequency integrated chip and the MSP430F2132 microcontroller.
Description
Technical field
The utility model relates to field of wireless transmission, and in particular, the utility model is a kind of wireless transceiver that is used for Internet of Things 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 wireless transceiver that is used for Internet of Things, 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 CC1101E radio frequency integrated chip, 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, after data are handled through microcontroller MCU, amplified, via antenna data sent by emission power amplifier in the radio circuit 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 470MHz ~ 482MHz, 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 the characteristics of dependable performance, cheap, super low-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 CC1101E 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 wireless transceiver of being used for Internet of Things 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:
A kind of wireless transceiver that is used for Internet of Things of present embodiment referring to Fig. 1, comprises 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, and radio circuit 2 connects antenna 5; Power supply 4 is microcontroller 1, radio circuit 2, I/O circuit 3, interface circuit 6 power supplies; Radio circuit 2 adopts CC1101E radio frequency integrated chips, and has comprised and be provided with radome at radio circuit 2 by the emission power amplifier; 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 470MHz ~ 482MHz, 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. wireless transceiver that is used for Internet of Things, 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 CC1101E radio frequency integrated chip, emission power amplifier; Described antenna is a whip antenna, and links to each other with radio circuit by sub-miniature A connector.
2. a kind of wireless transceiver that is used for Internet of Things according to claim 1 is characterized in that: described microcontroller is the MSP430F2132 microcontroller.
3. a kind of wireless transceiver that is used for Internet of Things according to claim 1 and 2, it is characterized in that: described microcontroller is the connecting interface circuit also.
4. a kind of wireless transceiver that is used for Internet of Things according to claim 1 and 2 is characterized in that: be provided with radome at described radio circuit, radome surrounds whole radio circuit.
5. a kind of wireless transceiver that is used for Internet of Things 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 |
|---|---|---|---|
| CN2010202733540U CN201742400U (en) | 2010-07-28 | 2010-07-28 | Wireless transceiver for Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202733540U CN201742400U (en) | 2010-07-28 | 2010-07-28 | Wireless transceiver for Internet of things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201742400U true CN201742400U (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202733540U Expired - Lifetime CN201742400U (en) | 2010-07-28 | 2010-07-28 | Wireless transceiver for Internet of things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201742400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112464682A (en) * | 2020-11-26 | 2021-03-09 | 上海阿法迪智能数字科技股份有限公司 | Book positioning device and method of intelligent bookshelf based on RFID technology |
-
2010
- 2010-07-28 CN CN2010202733540U patent/CN201742400U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112464682A (en) * | 2020-11-26 | 2021-03-09 | 上海阿法迪智能数字科技股份有限公司 | Book positioning device and method of intelligent bookshelf based on RFID technology |
| CN112464682B (en) * | 2020-11-26 | 2022-05-10 | 上海阿法迪智能数字科技股份有限公司 | Book positioning device and method of intelligent bookshelf based on RFID technology |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |