CN202424710U - 433-meter wireless transceiver - Google Patents
433-meter wireless transceiver Download PDFInfo
- Publication number
- CN202424710U CN202424710U CN2011204902980U CN201120490298U CN202424710U CN 202424710 U CN202424710 U CN 202424710U CN 2011204902980 U CN2011204902980 U CN 2011204902980U CN 201120490298 U CN201120490298 U CN 201120490298U CN 202424710 U CN202424710 U CN 202424710U
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- circuit
- wireless transceiver
- radio frequency
- matching circuit
- impedance matching
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Abstract
The utility model aims at providing a 433-meter wireless transceiver, which is simple in structure and decreased in volume on the premise of guaranteeing exchanging speed. To achieve the purpose, the technical scheme of the utility model includes that the 433-meter wireless transceiver comprises an MCU (micro control unit), a radio frequency IC (integrated circuit), a barron circuit and an impedance matching circuit which are sequentially connected in a circle. The impedance matching circuit is connected to a radio frequency antenna, a crystal oscillator matching circuit is connected to the radio frequency IC, and a power amplifier which is also connected to the radio frequency antenna is arranged on the impedance matching circuit. Although the manufacture cost is a little higher than that of the prior art due to the employment of the technical scheme, actual utilization effect is much better than that of the prior art. Above all, by the aid of the circular connecting structure, space of a circuit board is saved to the utmost extent, heat radiation is guaranteed, and service life of the product is prolonged.
Description
Technical field
The utility model relates to a kind of wireless transceiver that is used for Internet of Things, relates in particular to a kind of 433M wireless transceiver.
Background technology
Internet of Things is the important component part of generation information technology.Its English name is " The Internet of things ".Thus, as its name suggests, " Internet of Things is exactly the Internet that the thing thing links to each other ".This has the two-layer meaning: the first, and the core and the basis of Internet of Things remain the Internet, are extension and the network of expansion on the basis, the Internet; The second, its user side extends and has expanded between any article and the article, carries out information exchange and communicates by letter.Therefore; The definition of Internet of Things is through information sensing equipment such as radio frequency discrimination RFID, infrared inductor, global positioning system, laser scanners; Agreement by agreement; Be connected any article with the Internet, carry out information exchange and communicate by letter, to realize a kind of network intellectuality identification, location, tracking, monitoring and the management of article.This shows that the wireless transceiver in the Internet of Things is a very crucial link.The Internet of Things wireless transceiver is the product of a realization short distance low-consumption wireless communication technology.And be the necessary device of realizing Internet of Things, all bring conclusive effect for connection speed, the stability of whole Internet of Things.About the wireless transceiver in the Internet of Things many relevant technology are arranged also in the prior art; For in the utility model patent " a kind of 433M wireless transceiver " of " 201020273387.5 " a kind of 433M 10mW wireless transceiver is just disclosed like application number; Comprise radio circuit, low-frequency channel, said 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; Said 26M crystal oscillator match circuit links to each other with CC1101 radio frequency integrated chip; Said 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; Said low-frequency channel comprises power supply, interface, and said power supply links to each other with interface and links to each other with radio circuit respectively.The disclosed technical scheme of this patent has reduced the cost of product, has also reduced volume, but finds but that in actual use there is certain problem in its communication efficiency, sometimes can't satisfy the exchange of large-scale data, and working temperature is high.
The utility model content
The purpose of the utility model provides based on a kind of 433M wireless transceiver, and is simple in structure, guaranteeing to carry out reducing on the volume under the prerequisite of exchange velocity.
In order to reach said purpose; The technical scheme that the utility model adopted is a kind of 433M wireless transceiver; Comprise the integrated IC of MCU, radio frequency, balun circuit, impedance matching circuit that annular connects successively, impedance matching circuit is connected to radio-frequency antenna, also is connected with the crystal oscillator match circuit on the integrated IC of said radio frequency; Also be provided with power amplifier on the said impedance matching circuit, power amplifier also is connected to radio-frequency antenna.
Preferably, be provided with the 7ppm crystal oscillator in the said crystal oscillator match circuit.Such crystal oscillator vibration frequency is high, guarantees that the error in clock source is little, has improved the accuracy of communication exchange.
Preferably, said MCU adopts 16 low power consumption control devices to cooperate peripheral circuit to combine.Such structure has reduced heat radiation under the prerequisite that improves arithmetic speed.
Preferably, said radio-frequency antenna adopts silver-colored line and copper cash solderless wrapped connection to form.Though such structure cost is high, transmission performance and heat dispersion are all very good, and in the information age that data volume explodes, also can reduce the cost of updating the equipment.
Owing to adopted said technical scheme, the utility model is higher than prior art slightly on production cost, but practical effect will be higher than scheme of the prior art far away.Especially through the syndeton of annular, the space of wiring board has been saved in maximization, and has guaranteed thermal diffusivity, has improved the useful life of product.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is that the utility model is based on a kind of 433M wireless transceiver overall structure sketch map.
Embodiment
As shown in Figure 1; A kind of 433M wireless transceiver of the utility model; Comprise the integrated IC2 of MCU1, radio frequency, balun circuit 3, impedance matching circuit 4 that annular connects successively, impedance matching circuit 4 is connected to radio-frequency antenna 5, also is connected with crystal oscillator match circuit 6 on the integrated IC2 of said radio frequency; Also be provided with power amplifier 7 on the said impedance matching circuit 4, power amplifier 7 also is connected to radio-frequency antenna 5.
The MCU1 that the utility model adopted; Be Micro Control Unit, Chinese is a micro-control unit, claims one chip microcomputer or single-chip microcomputer again; Be meant appearance and development thereof along with large scale integrated circuit; CPU, RAM, ROM, timer conter and the multiple I/O interface of computer are integrated on a slice chip, form the computer of chip-scale, for doing various combination control in different application scenarios.
Said balun circuit 3 is balance-to-nonbalance converters of people portion reversible, can be used for the non-equilibrium output of public address level or half professional stereo set, is transformed into the balance input that specialty and male servant broadcast level, also can use conversely.
Be provided with the 7ppm crystal oscillator in the said crystal oscillator match circuit 6.Said MCU1 adopts 16 low power consumption control devices to cooperate peripheral circuit to combine.Said radio-frequency antenna 5 adopts silver-colored line and copper cash solderless wrapped connection to form.Radio-frequency antenna 5 is high frequency loads of transmitter; It also is the outlet of high-frequency energy; Being receiver front end carries out the critical component of signal capture to the space, and can the quality of its performance is directly connected to transmitter operate as normal, the quality of launching effect, and the power that receives signal capabilities.Therefore adopt mix around mode not only taken into account result of use and cost, can also be provided with certain surplus simultaneously, reduce the pressure that upgrading products brought when information increases.
The utility model 433M wireless transceiver is in use the same with prior art; Be arranged on the communication terminal of Internet of Things; Can be when the launching electromagnetic wave through such structure; The shows maximum radiation efficiency of power can receive electromagnetic wave signal extremely weak in the atmosphere when accepting, improve communication capacity and distance.The 433M wireless transceiver is provided with through annular simultaneously, reserves between a radiating area in the centre, and the heat that is produced in the time of effectively reducing work improves useful life.
The above is merely the specific embodiment of the utility model; But the architectural feature of the utility model is not limited thereto; The utility model can be used for similar equipment; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (4)
1. 433M wireless transceiver; It is characterized in that: comprise MCU (1), the integrated IC of radio frequency (2), balun circuit (3), impedance matching circuit (4) that annular connects successively; Impedance matching circuit (4) is connected to radio-frequency antenna (5); Also be connected with crystal oscillator match circuit (6) on the integrated IC of said radio frequency (2), also be provided with power amplifier (7) on the said impedance matching circuit (4), power amplifier (7) also is connected to radio-frequency antenna (5).
2. a kind of 433M wireless transceiver according to claim 1 is characterized in that: be provided with the 7ppm crystal oscillator in the said crystal oscillator match circuit (6).
3. a kind of 433M wireless transceiver according to claim 1 is characterized in that: said MCU (1) adopts 16 low power consumption control devices to cooperate peripheral circuit to combine.
4. according to the wherein arbitrary described a kind of 433M wireless transceiver of claim 1-3, it is characterized in that: said radio-frequency antenna (5) adopts silver-colored line and copper cash solderless wrapped connection to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204902980U CN202424710U (en) | 2011-11-30 | 2011-11-30 | 433-meter wireless transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204902980U CN202424710U (en) | 2011-11-30 | 2011-11-30 | 433-meter wireless transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424710U true CN202424710U (en) | 2012-09-05 |
Family
ID=46749433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204902980U Expired - Fee Related CN202424710U (en) | 2011-11-30 | 2011-11-30 | 433-meter wireless transceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411353A (en) * | 2016-11-22 | 2017-02-15 | 宁夏计算机软件与技术服务有限公司 | Low-power spread-spectrum wireless communication module and method thereof |
-
2011
- 2011-11-30 CN CN2011204902980U patent/CN202424710U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411353A (en) * | 2016-11-22 | 2017-02-15 | 宁夏计算机软件与技术服务有限公司 | Low-power spread-spectrum wireless communication module and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20121130 |