CN204315072U - A kind of wireless network node based on radio-frequency (RF) transceiver - Google Patents
A kind of wireless network node based on radio-frequency (RF) transceiver Download PDFInfo
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- CN204315072U CN204315072U CN201520009442.2U CN201520009442U CN204315072U CN 204315072 U CN204315072 U CN 204315072U CN 201520009442 U CN201520009442 U CN 201520009442U CN 204315072 U CN204315072 U CN 204315072U
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- microprocessor
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Abstract
The utility model discloses a kind of wireless network node based on radio-frequency (RF) transceiver, collection and the wireless transmission of data can be carried out, automatically realize wireless networking function.Power management module provides stable power supply for microprocessor and sensor, and its input end is connected to power supply, and output terminal is connected with sensor with microprocessor.Sensor and oscillator are all connected on modulator-demodular unit, and modulator-demodular unit is connected with microprocessor.JTAG, SPI interface, crystal resonator, FLASH, FT232BM and silicon serial number are all connected on the microprocessor.JTAG is as the artificial debugging interface of microprocessor.SPI interface is as the expansion interface of microprocessor.Crystal resonator provides clock signal for microprocessor.FT232BM is that a kind of monolithic USB is to asynchronous serial port conversion chip.Silicon serial number provides unique electronic identifications for this node.The launching and receiving module of RF device, AM modulation-demodulation circuit, power amplifier, diplexer and antenna composition signal.
Description
Technical field
The utility model relates to a kind of cordless communication network, designs a kind of wireless network node based on radio-frequency (RF) transceiver in particular.
Background technology
Radio transceiver network is the multiple comprehensive technology such as the one polymerization radio-frequency (RF) transceiver occurred after Information Technology Development to certain phase, embedded, modern network, radio communication and distributed information processing.Radio frequency network can be widely used in the multiple fields such as military affairs, environmental monitoring and forecast, health care and Smart Home.And the usual transmission range of wireless telecommunications is near, wireless communication node adopts power supply separately, stricter to power consumption requirements.
Summary of the invention
The technical matters that the utility model mainly solves is to provide a kind of wireless network node based on radio-frequency (RF) transceiver, can carry out collection and the wireless transmission of data, automatically realize wireless networking function.
For solving the problems of the technologies described above, the utility model one relates to a kind of cordless communication network, design a kind of wireless network node based on radio-frequency (RF) transceiver in particular, comprise power supply, power management module, sensor, modulator-demodular unit, oscillator, microprocessor, JTAG, SPI interface, crystal resonator, FLASH, FT232BM, PC end, silicon serial number, RF device, AM modulation-demodulation circuit, power amplifier, diplexer and antenna, collection and the wireless transmission of data can be carried out, automatically realize wireless networking function.
Power management module provides stable power supply for microprocessor and sensor, and its input end is connected to power supply, and output terminal is connected with sensor with microprocessor.The collection point of sensor, oscillator and modulator-demodular unit composition external information, sensor and oscillator are all connected on modulator-demodular unit, and modulator-demodular unit is connected with microprocessor.JTAG, SPI interface, crystal resonator, FLASH, FT232BM and silicon serial number are all connected on the microprocessor.JTAG is as the artificial debugging interface of microprocessor.SPI interface, as the expansion interface of microprocessor, can be connected with various single-chip microcomputer peripheral hardware by SPI interface microprocessor.Crystal resonator provides clock signal for microprocessor.FLASH is for storing data.FT232BM be a kind of monolithic USB to asynchronous serial port conversion chip, can be connected on PC end, as PC end with microprocessor between communication channel.Silicon serial number provides unique electronic identifications for this node.The launching and receiving module of RF device, AM modulation-demodulation circuit, power amplifier, diplexer and antenna composition signal, signal sends through RF device and carries out AM demodulation and digital demodulation through AM modulation-demodulation circuit, then is sent by antenna after amplification filtering.
As the further optimization of the technical program, the MSP430F1611 of TI company selected by the microprocessor described in a kind of wireless network node based on radio-frequency (RF) transceiver of the utility model.
As the further optimization of the technical program, the silicon serial number described in a kind of wireless network node based on radio-frequency (RF) transceiver of the utility model selects DS2411 electronic register code chip.
As the further optimization of the technical program, power amplifier described in a kind of wireless network node based on radio-frequency (RF) transceiver of the utility model is made up of two-stage, and the first order is inverter structure, the structure when second level is complementary push-pull, when not having radiofrequency signal, power consumption is zero.
The beneficial effect of a kind of wireless network node based on radio-frequency (RF) transceiver of the utility model is:
A. supply voltage is stablized, and ensures that microprocessor work is steady;
B. can receive or send fainter signal;
C. with unique identify label, also can not obscure when multiple node carries out networking;
D. power consumption is lower.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific implementation method, the utility model is described in more detail.
Fig. 1 is the system chart of a kind of wireless network node based on radio-frequency (RF) transceiver of the utility model.
Embodiment
In FIG: the utility model relates to a kind of without letter communication network, a kind of wireless network node based on radio-frequency (RF) transceiver in particular, comprise power supply, power management module, sensor, modulator-demodular unit, oscillator, microprocessor, JTAG, SPI interface, crystal resonator, FLASH, FT232BM, PC end, silicon serial number, RF device, AM modulation-demodulation circuit, power amplifier, diplexer and antenna, collection and the wireless transmission of data can be carried out, automatically realize wireless networking function.
Power management module provides stable power supply for microprocessor and sensor, and its input end is connected to power supply, and output terminal is connected with sensor with microprocessor.The magnitude of voltage that power supply exports is more unstable and only have a voltage, and different equipment operating voltage is different, so utilize power management module to carry out transformation and voltage stabilizing to supply voltage and be next stage equipment and sensor and microprocessor power supply.
The collection point of sensor, oscillator and modulator-demodular unit composition external information, sensor and oscillator are all connected on modulator-demodular unit, and modulator-demodular unit is connected with microprocessor.Sensor can select various types of sensor, and sensor is responsible for the collection of signal to external world and the simulating signal collected is converted to digital signal and passes to modulator-demodular unit.Oscillator and modulator-demodular unit are combined into modulation circuit and carry out coded treatment to the signal that sensor passes is come, and are for further processing in the signal transmission after process to microprocessor.
JTAG, SPI interface, crystal resonator, FLASH, FT232BM and silicon serial number are all connected on the microprocessor.JTAG is as the artificial debugging interface of microprocessor.SPI interface, as the expansion interface of microprocessor, can be connected with various single-chip microcomputer peripheral hardware by SPI interface microprocessor.Crystal resonator provides clock signal for microprocessor.FLASH is for storing data.FT232BM be a kind of monolithic USB to asynchronous serial port conversion chip, can be connected on PC end, as PC end with microprocessor between communication channel.Silicon serial number provides unique electronic identifications for this node.Microprocessor is necessary write-in program operationally, and by download program on bit processor, also can be carried out the debugging of program when system fault by JTAG by JTAG and artificial debugging interface.In order to later external equipment on the microprocessor, with the needs of adapt to development, microprocessor not only has the interface meeting work at present, also external expansion interface will be had, so connected on micro-reason device in place by SPI interface.The super low-power consumption MSP430F1611 of TI company selected by microprocessor, as the core of this node, is responsible for process and the transmission of signal.What current PC held is all USB interface, and this microprocessor uses USART interface, for realizing the conversion between two kinds of interfaces, selects FT232BM chip as conversion chip, and this chip is powered by usb bus.Silicon serial number selects DS2411, and the registration code of DS2411 is by 64 of factory's laser scoring ROM codes, comprising 48 unique bit sequence number, 8 CRC and 8 family's codes.Data are according to the 1-Wire protocol transmission of Dallas Semiconductor.Unique, ensure without any two elements identical, can ensure that each node is not obscured mutually when this node utilizes RF device to carry out networking.
The launching and receiving module of RF device, AM modulation-demodulation circuit, power amplifier, diplexer and antenna composition signal, signal sends through RF device and carries out AM demodulation and digital demodulation through AM modulation-demodulation circuit, then is sent by antenna after amplification filtering.RF device connects on the microprocessor, and select the radio transmitting and receiving chip CC2420 of Chipcon company, have very high integrated level, volume is little, reduces the power consumption of this node further.Utilize RF device to carry out wireless transmission and the reception of signal, thus realize multi-multipoint quickly networking.RF device driven antenna also obtains reflected signal from antenna, signal is now fainter and containing more clutter, utilize diplexer to carry out filtering and utilize power amplifier to amplify further, and carry out AM demodulation and digital demodulation through AM modulation-demodulation circuit, be transferred to after signal receiving in microprocessor.Diplexer can also be used for gating and the isolation of receiver and transmitter.
Certainly; above-mentioned explanation is not limitation of the utility model; the utility model is also not limited only to above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also belongs to protection domain of the present utility model.
Claims (4)
1. the wireless network node based on radio-frequency (RF) transceiver, comprise power supply, power management module, sensor, modulator-demodular unit, oscillator, microprocessor, JTAG, SPI interface, crystal resonator, FLASH, FT232BM, PC end, silicon serial number, RF device, AM modulation-demodulation circuit, power amplifier, diplexer and antenna, it is characterized in that: power management module provides stable power supply for microprocessor and sensor, its input end is connected to power supply, and output terminal is connected with sensor with microprocessor, the collection point of sensor, oscillator and modulator-demodular unit composition external information, sensor and oscillator are all connected on modulator-demodular unit, and modulator-demodular unit is connected with microprocessor, JTAG, SPI interface, crystal resonator, FLASH, FT232BM is connected on the microprocessor with silicon serial number, JTAG is as the artificial debugging interface of microprocessor, SPI interface is as the expansion interface of microprocessor, can be connected with various single-chip microcomputer peripheral hardware by SPI interface microprocessor, crystal resonator provides clock signal for microprocessor, FLASH is for storing data, FT232BM is that a kind of monolithic USB is to asynchronous serial port conversion chip, can be connected on PC end, as the communication channel between PC end and microprocessor, silicon serial number provides unique electronic identifications for this node, the launching and receiving module of RF device, AM modulation-demodulation circuit, power amplifier, diplexer and antenna composition signal, signal sends through RF device, carries out AM demodulation and digital demodulation, then sent by antenna after amplification filtering through AM modulation-demodulation circuit.
2. a kind of wireless network node based on radio-frequency (RF) transceiver according to claim 1, is characterized in that: the MSP430F1611 of TI company selected by described microprocessor.
3. a kind of wireless network node based on radio-frequency (RF) transceiver according to claim 1, is characterized in that: described silicon serial number selects DS2411 electronic register code chip.
4. a kind of wireless network node based on radio-frequency (RF) transceiver according to claim 1, it is characterized in that: described power amplifier is made up of two-stage, the first order is inverter structure, the structure when second level is complementary push-pull, when not having radiofrequency signal, power consumption is zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009442.2U CN204315072U (en) | 2015-01-07 | 2015-01-07 | A kind of wireless network node based on radio-frequency (RF) transceiver |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520009442.2U CN204315072U (en) | 2015-01-07 | 2015-01-07 | A kind of wireless network node based on radio-frequency (RF) transceiver |
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| CN204315072U true CN204315072U (en) | 2015-05-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448777A (en) * | 2019-09-05 | 2021-03-05 | 福建灵信信息科技有限公司 | Multifunctional wireless signal detection method |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448777A (en) * | 2019-09-05 | 2021-03-05 | 福建灵信信息科技有限公司 | Multifunctional wireless signal detection method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20180107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |