CN106817201A - A kind of method of the coding of use RF transceiver chip emission 1527 - Google Patents
A kind of method of the coding of use RF transceiver chip emission 1527 Download PDFInfo
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- CN106817201A CN106817201A CN201710172584.4A CN201710172584A CN106817201A CN 106817201 A CN106817201 A CN 106817201A CN 201710172584 A CN201710172584 A CN 201710172584A CN 106817201 A CN106817201 A CN 106817201A
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- Prior art keywords
- transceiver chip
- encoded
- chip emission
- code
- high level
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of method of the coding bag of use RF transceiver chip hair 2262/1527.In wireless intelligent house system, the equipment that RF transceiver chip is usually used in needing both-way communication, and 2262/1527 coding chip is usually used in the equipment for only needing one-way communication.When this two kind equipment coexists in a system, general way is using two sets of independent transmitting-receiving communicating circuits.Using after the method that the present invention is provided, 2262/1527 coding chip and its radiating circuit can be replaced by RF transceiver chip.The invention belongs to controlled in wireless, security protection and Smart Home technical field.
Description
Technical field
The invention belongs to controlled in wireless, security protection and Smart Home technical field.
Background technology
The RF transceiver chip of Sub-1GHz, is called wireless data sending chip, and such as SI4432/CC1101 is usually used in industry
Control/remote meter reading and intelligent domestic system etc., realize remote bidirectional wireless communication.They generally use distinctive bag lattice
Formula, can only be with identical or the chip communication of homologous series.
2262/1527 coding is usually used in controlled in wireless, security protection and intelligent domestic system, is particularly well-suited to the product of one-way transmission
Product, such as door sensor, infrared human body inductor, wireless alarm.2262 is the coded system of PT2262 chips, and 1527 is EV1527
The coded system of chip, 1527 codings compatible 2262 are encoded.
In wireless intelligent house system, the equipment that RF transceiver chip is usually used in needing both-way communication, such as switch panel/
Light adjusting controller etc., the kind equipment both needs to set, it is also desirable to inquire about.And 2262/1527 coding chip is usually used in only needing unidirectionally
The equipment of communication, such as sensor, alarm class.When this two kind equipment coexists in a system, general way is to use two
The independent transmitting-receiving communicating circuit of set.
RF transceiver chip typically supports Different Modulations.By taking SI4432 as an example, it supports FSK, GFSK and OOK
Modulation system.And OOK modulation systems are the modulation system that the general circuit using 2262/1527 coding is used.Therefore in thing
Can be what is communicated between RF transceiver chip and 2262/1527 receiving circuit on reason layer.
The invention provides a kind of method so that can also send the bag of 2262/1527 coding with RF transceiver chip, this
Without having 2262/1527 coding chip and its radiating circuit again in sample system, cost is saved.Simultaneously because RF transceiver core
The transmission power of piece is more much bigger than the radiating circuit that general use 2262/1527 is encoded, and transmission range and reliability are obtained
Improve.
The content of the invention
It is an object of the invention to provide a kind of method of use RF transceiver chip emission 2262/1527 coding.
Technical scheme is as follows：
By taking SI4432 chips as an example, its transmitting bag has consisting of part successively（Referring to Fig. 1）：
Lead code（Preamble）：Length 1-512 bytes can match somebody with somebody；
Synchronization character（Sync Word）：Length 1-4 bytes can match somebody with somebody；
Transmitting packet header（TX Header）：Length 0-4 bytes；
Bag length（Packet Length）：Length 0-1 bytes；
Data（Data）：Length 1-64 bytes；
Check code（CRC）：Length 0-2 bytes.
1527 coded formats（Referring to Fig. 2）：
Assuming that bit wide is T, one is surrounded by consisting of part：
Synchronous code：4T high level, 124T low levels（1 high 31 is low）；
Code bit 0：4T high level, 12T low levels（1 high 3 is low）；
Code bit 1：12T high level, 4T low levels（3 high 1 is low）.
Compare the composition of above-mentioned two bag, it is seen then that 1527 bag can be simulated with the bag of SI4432, corresponding relation is such as
Under：
1527 synchronous codes, correspondence SI4432 data 0x80000000 (1 high 31 is low)
1527 code bits 0, correspondence SI4432 data 0x8（1 high 3 is low）
1527 code bits 1, correspondence SI4432 data 0xe（3 high 1 is low）
When needing transmitting 1527 to wrap, 1527 coded data is first converted into the data of SI4432 by above-mentioned corresponding relation, write
Enter its FIFO, start and send.To ensure reliable reception, generally require multiple to same bag transmitting.
Brief description of the drawings
Fig. 1 is the part of the transmitting bag of the RF transceiver chip SI4432 being related in the present invention.
Fig. 2 is 1527 coded formats being related in the present invention.
Specific embodiment
By taking SI4432 as an example, configured as follows（Concrete configuration method is referring to chip handbook and register handbook）：
Preamble length is 1 nibble（4bit）, it is 0 to be worth；
1 byte of sync word length, it is 0 to be worth；
Transmitting packet header/bag length/CRC need not.
OOK modulating modes are configured to, frequency is typically chosen 315M/434M, and adjustment emission rate can change code length, be subjected to
Code length determined by the build-out resistor of receiving terminal.Actual measurement speed selection 3.2kbps or 4.7kbps, most of 315M/433M receptions
End can normal process.
Claims (10)
1. a kind of method that use RF transceiver chip emission 1527 is encoded, it is characterised in that：Sent out using RF transceiver chip
Penetrate coded RF bag.
2. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：Compile
Code radio frequency bag, can be using the radio frequency bag of OOK modulation systems.
3. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：Compile
Code radio frequency bag, its coded system can be the coded system commonly used in radio-frequency communication, including but not limited to：1527 codings, 2262
Coding, rolling code, learning code, 5026 codings, etc..
4. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：Should
Radio frequency bag uses the frequency communication of 315MHz/433.92MHz.
5. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：Penetrate
Frequency transponder chip can be sub-1GHz wireless data sending chips, including but not limited to：SI4432, TI1101, SI4463,
SI4438, RF69, etc..
6. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：It is right
The receiving circuit answered typically uses superhet or Armstrong circuit.
7. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：Hair
The code bit 0 of ejected wave shape uses high level length:Low level length=1:3 square wave represents that high level is preceding.
8. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：Hair
The code bit 1 of ejected wave shape uses high level length:Low level length=3:1 square wave represents that high level is preceding.
9. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：Hair
The synchronous code high level length of ejected wave shape:Low level length=1:31 square wave represents that high level is preceding.
10. the method that a kind of use RF transceiver chip emission 1527 according to claim 1 is encoded, it is characterised in that：
Code bit 0 of the RF transceiver chip in data 0x8 presentation codes, with the code bit 1 in data 0xe presentation codes, uses data
Synchronous code in 0x80000000 presentation codes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710172584.4A CN106817201A (en) | 2017-03-24 | 2017-03-24 | A kind of method of the coding of use RF transceiver chip emission 1527 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710172584.4A CN106817201A (en) | 2017-03-24 | 2017-03-24 | A kind of method of the coding of use RF transceiver chip emission 1527 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106817201A true CN106817201A (en) | 2017-06-09 |
Family
ID=59115183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710172584.4A Pending CN106817201A (en) | 2017-03-24 | 2017-03-24 | A kind of method of the coding of use RF transceiver chip emission 1527 |
Country Status (1)
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| CN (1) | CN106817201A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226245A1 (en) * | 2005-04-12 | 2006-10-12 | Holtek Semiconductor Inc. | Encoding format for passive radio frequency identification (RFID) system |
| CN101299755A (en) * | 2007-04-30 | 2008-11-05 | Vixs系统公司 | Multimedia client/server system with adjustable packet size and methods for use therewith |
| CN101834624A (en) * | 2010-03-15 | 2010-09-15 | 北京航空航天大学 | Data transmission module based on radio frequency chip |
| CN102377815A (en) * | 2010-08-17 | 2012-03-14 | 赵珂 | Building intelligent fitness system and using method thereof |
| CN203733233U (en) * | 2014-01-22 | 2014-07-23 | 解昶 | Wireless doorbell sensor |
-
2017
- 2017-03-24 CN CN201710172584.4A patent/CN106817201A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226245A1 (en) * | 2005-04-12 | 2006-10-12 | Holtek Semiconductor Inc. | Encoding format for passive radio frequency identification (RFID) system |
| CN101299755A (en) * | 2007-04-30 | 2008-11-05 | Vixs系统公司 | Multimedia client/server system with adjustable packet size and methods for use therewith |
| CN101834624A (en) * | 2010-03-15 | 2010-09-15 | 北京航空航天大学 | Data transmission module based on radio frequency chip |
| CN102377815A (en) * | 2010-08-17 | 2012-03-14 | 赵珂 | Building intelligent fitness system and using method thereof |
| CN203733233U (en) * | 2014-01-22 | 2014-07-23 | 解昶 | Wireless doorbell sensor |
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Application publication date: 20170609 |