CN107147420A - Radio communication device and wireless communications method based on RF remote-controlled chip - Google Patents
Radio communication device and wireless communications method based on RF remote-controlled chip Download PDFInfo
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- CN107147420A CN107147420A CN201710446019.2A CN201710446019A CN107147420A CN 107147420 A CN107147420 A CN 107147420A CN 201710446019 A CN201710446019 A CN 201710446019A CN 107147420 A CN107147420 A CN 107147420A
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- packet
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- remote
- transmitting terminal
- receiving terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- 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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
- H04L1/0018—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of radio communication device based on RF remote-controlled chip, including transmitting terminal and receiving terminal；Transmitting terminal includes：Keystroke handling module, first state machine, the first Clock management module, the first data subpackage group bag module, digital modulation module, RF transmitter modules；Receiving terminal includes：RF receiving modules, the second state machine, digital demodulating block, second clock management module, the second data subpackage group bag module, display module；Transmitting terminal and receiving terminal are in communication with each other according to the above-mentioned wireless communications method based on RF remote-controlled chip.The invention also provides a kind of wireless communications method based on RF remote-controlled chip, using the communication means of the present invention remote control equipment signal transmitting and receiving can be made to possess response ageing.
Description
Technical field
The present invention relates to wireless communication technology field, and in particular to a kind of side wireless communication based on 2.4GHz remote-controlled chips
Method.
Background technology
So-called 2.4GHz wireless technologys, its frequency range be in 2.405GHz~2.485GHz between, so referred to as 2.4G without
Line technology.It is the free frequency range of international regulations in this frequency range, any expense need not be paid to international linked groups, this
Just necessary advantage is provided for 2.4G wireless technology developabilities.And before 2.4G wireless technologys are different from
27MHz wireless technologys, its working method is full-duplex mode transmission, has absolute than 27MHz on interference free performance
Advantage, this advantage determines its superpower anti-interference and farther transmission range.In addition, 2.4G wireless technologys also possess
2M message transmission rate in theory, the 1M theoretical transmission rates than bluetooth are doubled, and this is just carried for later application layer
High reliable guarantee.Comprehensive 2.4GHz, bluetooth and 27MHz these three conventional Radio Transmission Technologys, 2.4GHz have from
Where oneself original advantage：Compared to bluetooth, its cost of goods manufactured it is lower there is provided message transmission rate it is higher；Compared to same
The free 27MHz wireless technologys of sample, its anti-interference, maximum transmission distance and power consumption all far beyond.
But when RF remote-controlled chip is exactly that requirement data transmit-receive possesses very high response also in the presence of a critical problem
Effect property, i.e., when being steered, remote controller key is pressed and sends command adapted thereto, and controlled device wants real-time response, if channel quilt
Interference is also or lock in time is long the characteristics of will lose real-time, makes manipulation experience very poor so as to give delay sense.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of nothing based on RF remote-controlled chip
Line communicator, and a kind of wireless communications method based on RF remote-controlled chip, can make remote control equipment signal transmitting and receiving possess sound
Should be ageing.The technical solution adopted by the present invention is：
A kind of wireless communications method based on RF remote-controlled chip, including：
In transmitting terminal,
Keystroke handling module receives push button signalling and starts the first Clock management module, and it is normal to enter first state machine
Mode of operation；
First data subpackage grouping module receives push button signalling and packaged, and each packet includes synchronous head, load
Data and check code；And packet is encoded；
The preceding m bits of load data are used as a timer conter；In each transmit cycle, transmitting terminal sends many successively
Individual packet, position of the packet in transmit cycle value of m bits before load data is determined；The m+1 ratios of load data
JP begins to be the direct mapping value of button；
First data subpackage group bag module is at interval of 1/2mTransmit cycle sends a packet to digital modulation module, number
The every transmit cycle frequency hopping of word modulation module is once；Redirected successively in multiple frequencies；The plurality of frequency belongs to different multiple
Channel；Signal after modulation is sent into RF transmitter modules to be launched.
Further, if keys deactivation or without button operation, transmitting terminal is persistently launched in the delay time of a setting
The first Clock management module is closed in packet, then control, into sleep state.
Further, the preceding dibit of load data is used as a timer conter；In each transmit cycle, transmitting terminal
The preceding dibit of load data is 2'b00 when sending first packet, preceding the two of load data when sending second packet
Bit is 2'b01, and the preceding dibit of load data is 2'b10 when sending the 3rd packet, is carried when sending fourth data bag
The preceding dibit of lotus data is 2'b11；
First data subpackage group bag module sends a packet to digital modulation module at interval of 1/4 transmit cycle.
In transmitting terminal, the first data subpackage grouping module is by packet with 16 times of spreading codes.
A kind of wireless communications method based on RF remote-controlled chip, including：
In receiving terminal,
Start second clock management module, RF receiving modules receive signal, send a signal to digital demodulating block progress
Demodulation；
Signal after demodulation is sent to the second subpackage group bag module, the second advanced row decoded packet data of subpackage group bag module；
Second subpackage group bag module is in acquiescence frequency search synchronous head, if synchronous head searches for the load that successfully post analysis are received
The preceding m bits of lotus data come judge this packet be in current frequency in position；And adjusted according to the position of the packet
The timer conter of whole receiving terminal so that receiving terminal timer conter and transmitting terminal timer conter are synchronous, reach and transmitting terminal
The purpose of synchronising frequency hopping；
Receiving terminal under normal pass pattern, according to transmit cycle identical receive the cycle, successively with transmitting terminal pair
Redirected in the multiple frequencies answered.
Further, the packet after handling by analysis is issued display module by the second state machine and shown.
Further, receiving terminal abnormality processing：
Correct packet is had been received by before receiving terminal, if without correct within 3~4 subsequent reception cycles
Packet is received, then receiving terminal jumps to acquiescence frequency from normal frequency hopping mode of operation and continues search for synchronous head；But such as
Fruit is not properly received packet in subsequent 3~4 reception cycles again, then receives the cycles as interval using 6~8, open 3
The search window of~4 reception Cycle Lengths；In acquiescence frequency search synchronous head in search window；
Correct packet is not received by before receiving terminal, if do not connect correctly in 3~4 subsequent reception cycles
Packet is received, then receives the cycle as interval using 6~8, the search window of 3~4 reception Cycle Lengths is opened；In search window
Give tacit consent to frequency search synchronous head.
A kind of radio communication device based on RF remote-controlled chip, including transmitting terminal and receiving terminal；
Transmitting terminal includes：Keystroke handling module, first state machine, the first Clock management module, the first data subpackage group bag
Module, digital modulation module, RF transmitter modules；
Receiving terminal includes：RF receiving modules, the second state machine, digital demodulating block, second clock management module, the second number
According to subpackage group bag module, display module；
Transmitting terminal and receiving terminal are in communication with each other according to the above-mentioned wireless communications method based on RF remote-controlled chip.
The advantage of the invention is that：Communication means using the present invention can make remote control equipment signal transmitting and receiving possess response timeliness
Property.The transmission range that the wireless communications method of the present invention makes is farther, and antijamming capability is stronger, and compared to the scheme work(with MCU
Consumption is lower, and volume is smaller, and cheaper is also more reliable.
Brief description of the drawings
Fig. 1 is structure composition schematic diagram of the invention.
Processing schematic diagram when Fig. 2 a and Fig. 2 b receive abnormal for the receiving terminal packet of the present invention.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in figure 1, the radio communication device based on RF remote-controlled chip, including transmitting terminal and receiving terminal；
Transmitting terminal includes：Keystroke handling module, first state machine, the first Clock management module, the first data subpackage group bag
Module, digital modulation module, RF transmitter modules；
Receiving terminal includes：RF receiving modules, the second state machine, digital demodulating block, second clock management module, the second number
According to subpackage group bag module, display module；
Above-mentioned transmitting terminal is arranged on remote control, and receiving terminal is arranged on remotely-controlled equipment, such as telecar；
Transmitting terminal function：
On S101, transmitting terminal after electricity, push button the external button of processing module (forward key/the left key of key/backward/to
Right button/accelerator key/alternative key), keystroke handling module receives push button signalling and starts the first Clock management module, and makes the first shape
State machine enters normal mode of operation；
S102, the first data subpackage grouping module receive push button signalling simultaneously package, each packet include synchronous head,
Load data and check code；By packet with 16 times of spreading codes；
Synchronous head length is 32 bits；
The preceding dibit of load data is used as a timer conter；In every 8 milliseconds of transmit cycle, transmitting terminal is sent
The preceding dibit of load data is 2'b00 during first packet, the preceding dibit of load data when sending second packet
For 2'b01, the preceding dibit of load data is 2'b10, charge number when sending fourth data bag when sending the 3rd packet
According to preceding dibit be 2'b11；2'b represents binary system；
3rd bit of load data starts as the direct mapping value of button, such as some button is pressed then to should button
The value of bit is 1, and it is then 0 not press；One simply example is that load data is eight, then rear six bit buttons are straight
Connect mapping value；Certain load data length can also be longer, such as 16, then can assign preceding 3 or 4 bits as timer counter
Device, remaining bit is the direct mapping value of button；
S103, the first data subpackage group bag module sends a packet at interval of 1/4 transmit cycle (2ms) and adjusted to numeral
Molding block, every transmit cycle (8ms) frequency hopping of digital modulation module is once；Successively in the first frequency 2420MHz, the second frequency
Redirected in 2445MHz, the 3rd frequency 2460MHz；First frequency, the second frequency, the 3rd frequency are belonging respectively to the first channel 2405
A frequency in~2425MHz, second channel 2426~2445MHz, the 3rd 2446~2480MHz of channel；After modulation
Signal is sent to RF transmitter modules and launched；
Frequency hop sequence has six kinds, as shown in the table：
S104, if keys deactivation or without button operation, transmitting terminal persistently launches packet 1 second, and then control closes the
One clock management module, into sleep state.
Receiving terminal function：
On S201, receiving terminal after electricity, start second clock management module, RF receiving modules receive signal, signal is sent
It is demodulated to digital demodulating block；
S202, the signal after demodulation is sent to the second subpackage group bag module, the second advanced row packet of subpackage group bag module
Decoding, that is, carry out the decoding of 1/16th redundancy；
Second subpackage group bag module acquiescence frequency in acquiescence frequency search synchronous head, this example is 2420MHz；If synchronous
Head search for the preceding dibit for the load data that successfully post analysis are received to judge which in the current frequency of this packet
Individual packet；And the timer conter of receiving terminal is adjusted according to the position of the packet so that receiving terminal timer conter and
Transmitting terminal timer conter is synchronous, reaches the purpose with transmitting terminal synchronising frequency hopping；In the normal communication mode, every 8 in the least for receiving terminal
Second as a cycle (receive cycle same transmit cycle), in the first frequency 2420MHz, the second frequency 2445MHz, the 3rd frequency
Redirected in 2460MHz；
Receiving terminal abnormality processing：
Correct packet is had been received by before S301, receiving terminal, if do not had within 3~4 subsequent reception cycles
Packet is had correctly received, then receiving terminal jumps to acquiescence frequency 2420Mhz from normal frequency hopping mode of operation and continued search for
Synchronous head；But if being not properly received packet in 3~4 subsequent reception cycles again, then receive week with 6~8
Phase is interval, opens the search window of 3~4 reception Cycle Lengths；In acquiescence frequency search synchronous head in search window；
One example has been received by correct packet as shown in Figure 2 a, before receiving terminal, if in subsequent 32ms
Packet is inside not properly received, then receiving terminal jumps to acquiescence frequency 2420Mhz from normal frequency hopping mode of operation and continued
Search for synchronous head；But if being not properly received packet in subsequent 32ms again, then using 64ms as interval, open 32ms
Search window；In acquiescence frequency search synchronous head in search window；
Correct packet is not received by before receiving terminal, if do not connect correctly in 3~4 subsequent reception cycles
Packet is received, then receives the cycle as interval using 6~8, the search window of 3~4 reception Cycle Lengths is opened；In search window
Give tacit consent to frequency search synchronous head；
One example is not received by correct packet as shown in Figure 2 b, before receiving terminal, if in subsequent 32ms
Packet is not properly received, then using 64ms as interval, opens 32ms search window；It is same in acquiescence frequency search in search window
Walk head；
S204, the packet after handling by analysis is issued display module by the second state machine and shown.
Above-mentioned first Clock management module, second clock management module are 12MHz crystal oscillation clock circuits.
Claims (7)
1. a kind of wireless communications method based on RF remote-controlled chip, it is characterised in that including：
In transmitting terminal,
Keystroke handling module receives push button signalling and starts the first Clock management module, and first state machine is entered normal work
Pattern；
First data subpackage grouping module receive push button signalling simultaneously package, each packet include synchronous head, load data,
And check code；And packet is encoded；
The preceding m bits of load data are used as a timer conter；In each transmit cycle, transmitting terminal sends many numbers successively
According to bag, position of the packet in transmit cycle value of m bits before load data is determined；The m+1 of load data compares JP
Begin as the direct mapping value of button；
First data subpackage group bag module is at interval of 1/2mTransmit cycle sends a packet to digital modulation module, and numeral is adjusted
The every transmit cycle frequency hopping of molding block is once；Redirected successively in multiple frequencies；The plurality of frequency belongs to different multiple channels；
Signal after modulation is sent into RF transmitter modules to be launched.
2. the wireless communications method as claimed in claim 1 based on RF remote-controlled chip, it is characterised in that
If keys deactivation or without button operation, transmitting terminal persistently launches packet in the delay time of a setting, then controls
System closes the first Clock management module, into sleep state.
3. the wireless communications method as claimed in claim 1 based on RF remote-controlled chip, it is characterised in that
The preceding dibit of load data is used as a timer conter；In each transmit cycle, transmitting terminal sends the first number
It is 2'b00 according to the preceding dibit of load data during bag, the preceding dibit of load data is 2'b01 when sending second packet,
The preceding dibit of load data is 2'b10 when sending the 3rd packet, preceding the two of load data when sending fourth data bag
Bit is 2'b11；
First data subpackage group bag module sends a packet to digital modulation module at interval of 1/4 transmit cycle;
In transmitting terminal, the first data subpackage grouping module is by packet with 16 times of spreading codes.
4. a kind of wireless communications method based on RF remote-controlled chip, it is characterised in that including：
In receiving terminal,
Start second clock management module, RF receiving modules receive signal, send a signal to digital demodulating block and be demodulated；
Signal after demodulation is sent to the second subpackage group bag module, the second advanced row decoded packet data of subpackage group bag module；
Second subpackage group bag module is in acquiescence frequency search synchronous head, if synchronous head searches for the charge number that successfully post analysis are received
According to preceding m bits come judge this packet be in current frequency in position；And connect according to the position of the packet to adjust
The timer conter of receiving end so that receiving terminal timer conter and transmitting terminal timer conter are synchronous, reaches synchronous with transmitting terminal
The purpose of frequency hopping；
Receiving terminal receives the cycle, successively corresponding with transmitting terminal under normal pass pattern according to transmit cycle identical
Redirected in multiple frequencies.
5. the wireless communications method as claimed in claim 4 based on RF remote-controlled chip, it is characterised in that including：
Packet after handling by analysis is issued display module by the second state machine and shown.
6. the wireless communications method as claimed in claim 4 based on RF remote-controlled chip, it is characterised in that including：
Receiving terminal abnormality processing：
Correct packet is had been received by before receiving terminal, if be not properly received within 3~4 subsequent reception cycles
To packet, then receiving terminal jumps to acquiescence frequency from normal frequency hopping mode of operation and continues search for synchronous head；But if again
Packet is not properly received in 3~4 subsequent reception cycles, then receives the cycle as interval using 6~8, opens 3~4
The individual search window for receiving Cycle Length；In acquiescence frequency search synchronous head in search window；
Correct packet is not received by before receiving terminal, if be not properly received in 3~4 subsequent reception cycles
Packet, then receive the cycle as interval using 6~8, opens the search window of 3~4 reception Cycle Lengths；In acquiescence in search window
Frequency searches for synchronous head.
7. a kind of radio communication device based on RF remote-controlled chip, it is characterised in that
Including transmitting terminal and receiving terminal；
Transmitting terminal includes：Keystroke handling module, first state machine, the first Clock management module, the first data subpackage group bag module,
Digital modulation module, RF transmitter modules；
Receiving terminal includes：RF receiving modules, the second state machine, digital demodulating block, second clock management module, the second data point
Package bag module, display module；
Transmitting terminal according to the wireless communications method according to any one of claims 1 to 3 based on RF remote-controlled chip, receiving terminal according to
The wireless communications method based on RF remote-controlled chip any one of claim 4~6, and be in communication with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710446019.2A CN107147420A (en) | 2017-06-14 | 2017-06-14 | Radio communication device and wireless communications method based on RF remote-controlled chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710446019.2A CN107147420A (en) | 2017-06-14 | 2017-06-14 | Radio communication device and wireless communications method based on RF remote-controlled chip |
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| Publication Number | Publication Date |
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| CN107147420A true CN107147420A (en) | 2017-09-08 |
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| CN201710446019.2A Pending CN107147420A (en) | 2017-06-14 | 2017-06-14 | Radio communication device and wireless communications method based on RF remote-controlled chip |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070274260A1 (en) * | 2006-05-25 | 2007-11-29 | Zafer Sahinoglu | Method for transmitting a communications packet in a wireless communications network |
| CN101119133A (en) * | 2007-09-07 | 2008-02-06 | 倪郁青 | 2.4GHz frequency hopping technique based one-to-many fast synchronization method |
| CN104823445A (en) * | 2012-11-30 | 2015-08-05 | 北欧半导体公司 | Stereoscopic viewing apparatus and display synchronization |
| CN106209153A (en) * | 2016-08-31 | 2016-12-07 | 江苏钜芯集成电路技术股份有限公司 | A kind of remote-controlled chip of high integration |
-
2017
- 2017-06-14 CN CN201710446019.2A patent/CN107147420A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070274260A1 (en) * | 2006-05-25 | 2007-11-29 | Zafer Sahinoglu | Method for transmitting a communications packet in a wireless communications network |
| CN101119133A (en) * | 2007-09-07 | 2008-02-06 | 倪郁青 | 2.4GHz frequency hopping technique based one-to-many fast synchronization method |
| CN104823445A (en) * | 2012-11-30 | 2015-08-05 | 北欧半导体公司 | Stereoscopic viewing apparatus and display synchronization |
| CN106209153A (en) * | 2016-08-31 | 2016-12-07 | 江苏钜芯集成电路技术股份有限公司 | A kind of remote-controlled chip of high integration |
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Application publication date: 20170908 |
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