CN201821342U - 433M 10-medium-wave wireless transceiver - Google Patents
433M 10-medium-wave wireless transceiver Download PDFInfo
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- CN201821342U CN201821342U CN2010202733875U CN201020273387U CN201821342U CN 201821342 U CN201821342 U CN 201821342U CN 2010202733875 U CN2010202733875 U CN 2010202733875U CN 201020273387 U CN201020273387 U CN 201020273387U CN 201821342 U CN201821342 U CN 201821342U
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Abstract
The utility model relates to a 433M 10-medium-wave wireless transceiver which aims at solving the problems that the amount of using modules is large, the circuit is complicated, the price is high, and the performance is difficult to guarantee in the prior art. The 433M 10-medium-wave wireless transceiver comprises a radio-frequency circuit and a low-frequency circuit, wherein the radio-frequency circuit comprises a 26M crystal oscillation matching circuit, a 433M helical antenna, a CC1101 radio-frequency integrated chip, a 433M frequency-range Barron circuit and a 433M frequency-range low-pass filtering circuit; and the low-frequency circuit comprises a power supply and an interface, which are connected and respectively connected with the radio-frequency circuit. The 433M 10-medium-wave wireless transceiver adopts the CC1101 radio-frequency integrated chip, so that the whole circuit is simplified, the cost and the power consumption are reduced, and the transmission performance is improved.
Description
Technical field
The utility model relates to field of wireless transmission, and in particular, the utility model is a kind of 433M 10mW wireless transceiver about Internet of Things.
Background technology
At present, the 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 433M 10mW 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, low-frequency channel, and described radio circuit comprises 26M crystal oscillator match circuit, 433M helical antenna, CC1101 radio frequency integrated chip, 433M frequency range balun circuit, 433M frequency range low-pass filter circuit; Described 26M crystal oscillator match circuit links to each other with CC1101 radio frequency integrated chip, described CC1101 radio frequency integrated chip links to each other with the end of low-frequency channel with 433M frequency range balun circuit, the other end of 433M frequency range balun circuit links to each other with an end of 433M frequency range low-pass filter circuit, and the other end of 433M frequency range low-pass filter circuit links to each other with the 433M helical antenna; Described low-frequency channel comprises power supply, interface, and described power supply links to each other with interface and links to each other with radio circuit respectively.The data that the user will need to send when sending data send to wireless transceiver with the SPI form, transceiver is loaded on the 433M frequency range after digital signal is modulated by debud modes such as 2-FSK, GFSK, OOK, MSK, finally by spring signal is sent with form of electromagnetic wave by front end match circuits such as 433M eight human relations circuit and 433M low-pass filter circuits; When receiving data, when spring antenna receives airborne effective electromagnetic wave, to not have limited signal by front end high frequency match circuit and return integrated chip to CC1101, demodulation process through the simulation part, analog high frequency is changed into intermediate-freuqncy signal, pass through the processing of numerical portion again, by SPI the data that receive are exported at last; Described radio circuit is worked in the frequency range of 433 ± 10MHz, and transmitting power is 10MW, emission current≤40mA, received current≤23mA, sleep current≤2uA; Can be for a long time under 2.0 ~ 3.6V operating voltage normal steady operation; Adopt the SPI interface with external data communication, can directly link to each other with single-chip microcomputer, software programming is very convenient.
As preferably, described interface is 2.0 single pin x8,2.0 single pin x2, and described 2.0 single pin x8,2.0 single pin x2 link to each other with CC1101 radio frequency integrated chip.2.0 single pin x8 is used for to wireless module power supply, output transmission, State Control; 2.0 single pin x2 is arranged on the front end of wireless transceiver, directly with systematically the linking to each other of user, further increases the ground connection performance of wireless transceiver; Pass through interface, the user can directly connect single-chip microcomputer, can be by single-chip microcomputer to multiple operations such as the reception of wireless transceiver, emission, sleep, speed, channel, communication patterns, thereby the problem when directly being connected by peripheral apparatus between two or more products of avoiding needing to communicate by letter within module efficient communication scope on the issuable line configuring improves the comprehensive competitive power of a whole set of products simultaneously.
As preferably, be provided with radome at described radio circuit, surround 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.
The beneficial effects of the utility model are: by adopting CC1101 radio frequency integrated chip, simplified entire circuit, reduced cost, reduced power consumption, dwindled overall dimension, improved transmission performance, reliable transmission is apart from 250m.
Description of drawings
Fig. 1 is that a kind of circuit of the utility model 433M 10mW wireless transceiver connects block diagram.
Among the figure: 1. 433M helical antenna, 2. 433M frequency range low-pass filter circuit, 3. 433M frequency range balun circuit, 4. CC1101 radio frequency integrated chip, 5. 2.0 single pin x2,6. 26M crystal oscillator match circuit, 7. power supply, 8. 2.0 single pin x8.
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 433M 10mW wireless transceiver of present embodiment, referring to Fig. 1, comprise radio circuit and low-frequency channel, radio circuit comprises 26M crystal oscillator match circuit 6,433M helical antenna 1, CC1101 radio frequency integrated chip 4,433M frequency range balun circuit 3,433M frequency range low-pass filter circuit 2, and low-frequency channel comprises power supply 7,2.0 single pin x8 8,2.0 single pin x2 5; Power supply 7 links to each other with 2.0 single pin x8 8 and CC1101 radio frequency integrated chip 4, and 2.0 single pin x8 8 link to each other with CC1101 radio frequency integrated chip 4; CC1101 radio frequency integrated chip 4 is connected with 26M crystal oscillator match circuit 6,433M frequency range balun circuit 3, power supply 7,2.0 single pin x2 5 as the core of radio circuit, and 433M frequency range balun circuit 3 links to each other with 433M helical antenna 1 by 433M frequency range low-pass filter circuit 2.
Radio circuit, and is done good earth and is handled its comprehensive covering with radome.
The communication data that needs are sent sends to wireless transceiver with the SPI form, and transceiver is loaded on the 433M frequency range after digital signal is modulated by debud modes such as 2-FSK, GFSK, OOK, MSK, sends with form of electromagnetic wave; After wireless transceiver receives the valid wireless signal, through the demodulation process of simulation part, pass through the processing of numerical portion again, by SPI the data that receive are exported at last; Transceiver is worked in the frequency range of 433 ± 10MHz, and transmitting power is 10MW, emission current≤40mA, received current≤23mA, sleep current≤2uA; Can normal for a long time steady operation under 2.0 ~ 3.6V operating voltage.
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 (3)
1. 433M 10mW wireless transceiver, comprise radio circuit, low-frequency channel, it is characterized in that: described radio circuit comprises 26M crystal oscillator match circuit, 433M helical antenna, CC1101 radio frequency integrated chip, 433M frequency range balun circuit, 433M frequency range low-pass filter circuit; Described 26M crystal oscillator match circuit links to each other with CC1101 radio frequency integrated chip, described CC1101 radio frequency integrated chip links to each other with the end of low-frequency channel with 433M frequency range balun circuit, the other end of 433M frequency range balun circuit links to each other with an end of 433M frequency range low-pass filter circuit, and the other end of 433M frequency range low-pass filter circuit links to each other with the 433M helical antenna; Described low-frequency channel comprises power supply, interface, and described power supply links to each other with interface and links to each other with radio circuit respectively.
2. a kind of 433M 10mW wireless transceiver according to claim 1 is characterized in that: described interface is 2.0 single pin x8,2.0 single pin x2, and described 2.0 single pin x8,2.0 single pin x2 link to each other with CC1101 radio frequency integrated chip.
3. a kind of 433M 10mW wireless transceiver according to claim 1 and 2, it is characterized in that: be provided with radome at described radio circuit, radome surrounds whole radio circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202733875U CN201821342U (en) | 2010-07-28 | 2010-07-28 | 433M 10-medium-wave wireless transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202733875U CN201821342U (en) | 2010-07-28 | 2010-07-28 | 433M 10-medium-wave wireless transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821342U true CN201821342U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202733875U Expired - Lifetime CN201821342U (en) | 2010-07-28 | 2010-07-28 | 433M 10-medium-wave wireless transceiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457656A (en) * | 2012-06-05 | 2013-12-18 | 武汉盛华微系统技术股份有限公司 | Network management channel implementation system suitable for wireless optical fiber covering system |
-
2010
- 2010-07-28 CN CN2010202733875U patent/CN201821342U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457656A (en) * | 2012-06-05 | 2013-12-18 | 武汉盛华微系统技术股份有限公司 | Network management channel implementation system suitable for wireless optical fiber covering system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |