CN107211397A - Communication system - Google Patents
Communication system Download PDFInfo
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- CN107211397A CN107211397A CN201680009141.7A CN201680009141A CN107211397A CN 107211397 A CN107211397 A CN 107211397A CN 201680009141 A CN201680009141 A CN 201680009141A CN 107211397 A CN107211397 A CN 107211397A
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- 238000004891 communication Methods 0.000 title claims description 101
- 230000005540 biological transmission Effects 0.000 claims abstract description 111
- 230000009471 action Effects 0.000 claims abstract description 31
- 238000010248 power generation Methods 0.000 claims description 22
- 238000011156 evaluation Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 73
- 238000012545 processing Methods 0.000 description 30
- 230000008569 process Effects 0.000 description 21
- 230000008859 change Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
Transmitter (10) is in sending action once, by at least two channel according to the order determined and with the interval determined send successively identical send data, the information for representing to send channel precedence is obtained and stored from receiver (20), current transmission channel precedence is notified to receiver, and while switching the precedence for the channel being transmitted based on initial setting precedence or the transmission channel precedence obtained from receiver (20), while the reception of the information of channel precedence is sent by the transmission and representing from receiver (20) for the progress identical data that are time-multiplexed with the interval determined.
Description
Technical field
The present invention relates to a kind of communication system with transmitter and receiver, transmitter, which has, is transformed to mechanical energy
The TRT of electric energy, the electric energy is used so as to send wireless signal as power supply, and receiver, which is received, passes through the transmitter
The wireless signal of transmission.
Background technology
For example, disclosing the communication system that TRT is provided with transmitter in the grade of patent document 1.
In this communication system, because the quantity delivered of the electric energy regenerated by TRT is low, with following
Limitation：[1] electricity only put aside in electrical storage device etc., or [2] time per unit are limited, with AC power supplies or battery phase
Than the electricity that can be used is limited.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2013-126161 publications
The content of the invention
Invent problem to be solved
It is being provided with as described above in transmitter in the communication system of TRT, because workable electric power is very
It is limited, so the communication that can not carry out being used in conventional radio communication the reliability and communication capacity that improve communication is adjusted
Stop, for example, by carrier sense based on two-way communication can not be in communication with each other channel switching and can not be with ACK not
Reach and sent again, but regularly communicated by pre-determined channel using unidirectional broadcast mode.
Therefore, even not used by other wireless devices etc. when setting wireless device etc., it can carry out good logical
In the channel of letter, also the letter can be taken with the item (bring portable phone into, set other communication equipments) occurred after setting
The increase of the time in road so that communication is hindered, the danger not reached that communicates is very high.Therefore, try every possible means in a part
Equipment in multiple transmission by setting channel etc. improve the arrival probability of communication, but if in the channel with high occupancy
Near equipment that rate is communicated etc. is located at, then can not be said to be has the improvement for reaching probability really.
The problem of present invention allows for above point and make there is provided a kind of communication system, the communication system is to the greatest extent may be used
Can be communicated all the time by good channel, and can by way of limited energy is communicated, even if without
The formality such as carrier sense of complexity like that can also improve the reliability of communication in the past.
The means to solve the problem
One mode of the communication system of the present invention is that, with transmitters and receivers, the transmitter has mechanical energy
The Power Generation Section of electric energy is transformed to, the electric energy obtained by the Power Generation Section is used as power supply to be transmitted wirelessly, it is described to receive
Device receives the wireless signal sent by the transmitter,
The transmitter in sending action once, by least two channel according to the order determined simultaneously
Identical is sent with the interval determined successively and sends data, and is obtained from the receiver and stores expression transmission channels bits
Secondary information, current transmission channel precedence is notified to the receiver, while being received based on initial setting precedence or from described
The transmission channel precedence that device is obtained switches the precedence for the channel being transmitted, while pass through the time-division with the interval determined
Multiplexing carries out the information of the transmission of the identical data and the expression transmission channel precedence from the receiver
Receive,
The receiver storage receives channel number and precedence, and receives and store the hair notified from the transmitter
Channels are numbered and the transmission channel precedence, are sent to the transmitter and are represented the information for sending channel precedence, commented
Valency receives channel and normally received or garbled-reception, evaluates the receiving quality of each channel, mistake is being carried out by setting channel
When receiving by mistake, channel is received according to precedence set in advance switching, and according to the result after evaluating each channel to institute
State the transmission channel precedence that transmitter notifies send next time.
One mode of the communication system of the present invention is unidirectional communication system, and it has：Transmitters and receivers, it is described
Transmitter has the Power Generation Section that mechanical energy is transformed to electric energy, and the electric energy obtained by the Power Generation Section is used as power supply to carry out
Wireless transmission, the receiver receives the wireless signal sent by the transmitter,
The transmitter in sending action once by least two channel according to the order determined simultaneously
Identical is sent with the interval determined successively and sends data,
The receiver stores the transmission channel number of the transmitter and sends channel precedence, evaluates reception channel and is
Normally receive or garbled-reception, be judged as busy channel will be received, channel is received according to precedence set in advance switching.
One mode of the communication system of the present invention is unidirectional communication system, and it has：Transmitters and receivers, it is described
Transmitter has the Power Generation Section that mechanical energy is transformed to electric energy, and the electric energy obtained by the Power Generation Section is used as power supply to carry out
Wireless transmission, the receiver receives the wireless signal sent by the transmitter,
The transmitter in sending action once, by least two channel according to the order determined simultaneously
Identical is sent with the interval determined successively and sends data,
The receiver storage and the transmitter identical channel number, and the quality for receiving channel is evaluated, receiving
Switching receives channel when the quality of channel is below predetermined value.
One mode of the communication system of the present invention is unidirectional communication system, and it has：Transmitters and receivers, it is described
Transmitter has the Power Generation Section that mechanical energy is transformed to electric energy, and the electric energy obtained by the Power Generation Section is used as power supply to carry out
Wireless transmission, the receiver receives the wireless signal sent by the transmitter,
The transmitter in sending action once, by least two channel according to the order determined simultaneously
Identical is sent with the interval determined successively and sends data,
The receiver stores the transmission channel number of the transmitter and sends channel precedence, passes through timer and hair
Switch reception channel with sending interval synchronization, receive channel repeatedly to receive by different channels according to the order switching determined
The data of the multiple transmission sent from the transmitter.
The effect of invention
A kind of communication system can be realized by the present invention, the communication system can be led to by good channel all the time
Letter, and can be communicated by limited energy, also can even if without the formality such as carrier sense of complexity like that in the past
Enough reliabilities for improving communication.
Brief description of the drawings
Fig. 1 represents the Sketch of the communication system of embodiment.
Fig. 2 represents the principle of communication control method 1, and Fig. 2A represents the operating principle of transmitter, and Fig. 2 B represent receiver
Operating principle.
Fig. 3 is the flow chart of the transmission handling process for the transmitter for representing communication control method 1.
Fig. 4 is the flow chart of the reception processing flow for the receiver for representing communication control method 1.
Fig. 5 is the flow chart for representing to receive the handling process for starting interruption subroutine.
Fig. 6 represents the principle of communication control method 2, and Fig. 6 A represent the principle of the first sending action of transmitter, Fig. 6 B tables
Show the operating principle of receiver, Fig. 6 C represent the principle of the first sending action of transmitter.
Fig. 7 is the flow chart of the transmission handling process for the transmitter for representing communication control method 2.
Fig. 8 is the flow chart of the reception processing flow for the receiver for representing communication control method 2.
Fig. 9 is the flow chart for representing to receive the handling process for starting interruption subroutine.
Figure 10 is the flow chart for the handling process for representing timer interruption subroutine.
Figure 11 represents the principle of communication control method 3, and Figure 11 A represent the principle of the sending action of transmitter, and Figure 11 B are represented
The principle of the reception action of receiver.
Figure 12 is the flow chart of the reception processing flow for the receiver for representing communication control method 3.
Figure 13 is the flow chart for representing to receive the handling process for starting interruption subroutine.
Figure 14 is the flow chart for the handling process for representing timer interruption subroutine.
Figure 15 is the flow chart of the reception processing flow for the receiver for representing communication control method 4.
Figure 16 is the flow chart for representing to receive the handling process for starting interruption subroutine.
Figure 17 is the flow chart for the handling process for representing timer interruption subroutine.
Embodiment
By limited energy, sending side can not detect good channel from multiple channels, and transmitter receiver can not
Mutual mediation communication channel.Therefore, following method is proposed in the present embodiment：Transmitter is without the tune with receiver
Stop, but by multiple channels set in advance it is asynchronous and successively it is multiple transmission identical data.Receiver produces sufficient
Electric power, detects reception state, if channel busy, and switching channel can be received with will pass through other channel.
In addition, proposing following method in the present embodiment：Receiver produces sufficient electric power, carries out reception state
Detection and evaluation, received by reception channel in the best state, and with minimum power (ACK replies) to transmission
Device indicates the switching of the first channel (main channel), and it is always highest to make communication probability.
Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings.
<Structure>
Fig. 1 represents the Sketch of the communication system of embodiment.The communication system of present embodiment is from generating
One transmitter 10 in portion 14 is transmitted the communication system of the one-way communication of data to more than one receiver 20.Communication system
The communication mode of system is the ZigBee wireless modes based on IEEE802.14.5 or the ZigBee based on IEEE802.14.5
Green Power wireless modes etc..
Transmitter 10 is encoded, sent the Base-Band Processing of frame structure etc. by baseband processing section 11, and by wirelessly sending out
Send portion 12 to be amplified, the wireless processing of up-conversion etc., send thus obtained wireless signal from antenna.Baseband processing section 11
And the action of wireless transmission part 12 is controlled by transmission control unit 13.In addition, transmitter 10 has is transformed to electricity by mechanical energy
The Power Generation Section 14 and Reserve Power Division 15 of energy, and the electric energy that savings is obtained by Power Generation Section 14 in Reserve Power Division 15.As for making
The energy that whole transmitter 10 is acted, supplies the electric energy of Reserve Power Division 15.
Receiver 20 is directed to the signal that is received by antenna, be amplified by wireless receiving section 21 with frequency reducing conversion etc.
Wireless processing, and by base band demodulating portion 22 carry out the demodulation process such as decode.Wireless receiving section 21 and base band demodulating portion 22
Action controlled by reception control unit 23.
In the present embodiment, any one communication control method in the communication control method 1~4 of following explanation is passed through
To control the communication between transmitter 10 and receiver 20, thus, it is possible to improve proper communication probability by low consumpting power.
In addition, Power Generation Section 14 can use following structure：With coil and permanent magnet；Operation by people etc. is from outside
The accumulator for the elastic energy that mechanical energy savings produces for the deformation by elastomers such as springs；Inputted by predetermined displacement
The mechanism of the elastic energy of accumulator is discharged, the relative displacement for making the coil and permanent magnet by the energy of release becomes
Change so that the change in magnetic flux density of coil thus with electromagnetic induction by way of generated electricity.
In addition, Power Generation Section 14 can use following structure：With being made up of magnetostriction materials, and make magnetic force in the axial direction
At least one magnetostrictive rod that line passes through；Beam parts with the function that stress is assigned to the magnetostrictive rod；It is configured to make
The magnetic line of force passes through in the axial direction, and produces the coil of voltage according to the change of density of line of magnetic force, for operation of people etc. from outer
The mechanical energy in portion, one end relative to the magnetostrictive rod makes the other end in the direction top offset substantially vertical with its axial direction,
So as to be put aside above-mentioned mechanical energy as elastic energy in the beam parts and magnetostriction materials, also, by predetermined
Displacement inputs to discharge the forced displacement of the other end, the magnetostrictive rod is stretched by the elastic energy of savings, by
This makes the variable density of the magnetic line of force produce voltage in the coil.
In addition, there is following implication in the following term used in description of the present embodiment.
Main channel (M-ch)：The channel that transmitter 10 is initially transmitted.In addition, being that receiver 20 carries out standby letter
Road.
Subchannel (S-ch)：The channel that transmitter 10 switches channel to be transmitted successively after M-ch transmissions are carried out.Separately
Outside, it is the channel that temporarily switching receives channel to be retreated of receiver 20.It can set multiple (S1-ch, S2-ch).
SFD(Start Frame Ditect)：Notify to detect the receiving frame for starting data receiver.
SFD_INT：The hardware interrupts produced when SFD is received.
LEN：The frame of next reception, reception data length after SFD.
SRC：FCF+SEQ+DES+Source PAN ID (sending destination address, transmission source address).
<Communication control method 1>
Fig. 2 represents the principle of communication control method 1.Fig. 2A represents the operating principle of transmitter 10, and Fig. 2 B represent receiver
20 operating principle.
In communication control method 1, as shown in Figure 2 A, transmitter 10 (means once wide in sending action once
Broadcast and send) in, progress is successively sent according to the order determined and with the interval determined by least two channel
Identical sends the multiple transmission of data.In Fig. 2A example, broadcast transmission is carried out in many important places of three channels.
As shown in Figure 2 B, docking collection of letters road is demodulated receiver 20 successively in a predetermined sequence.Herein, receiver
20 prestore the precedence for sending channel number and progress reception demodulation of transmitter 10, right successively according to the order of storage
Channel carries out reception demodulation.Normally received or garbled-reception in addition, receiver 20 evaluates the channel carried out after reception demodulation,
When being evaluated as garbled-reception, reception channel is switched immediately according to the precedence prestored.Fig. 2 B example is connect at first
Because other receivers 20 occupy the reception channel (being busy condition) therefore as garbled-reception in collection of letters road, second
Because around wave environments are bad therefore turn into garbled-reception in individual reception channel, it can be carried out just in the 3rd reception channel
The example often received.Consequently, it is possible to the time untill being normally received in some channel can be shortened, and can
Improve proper communication probability.
In addition, on normally receive or garbled-reception evaluation, meet it is following 1)~4) in any one when
It is judged as garbled-reception, is judged as normally receiving when not meeting any one.
1) LEN is not defined length.
2) sending destination address, transmission source address do not meet predetermined setting value or list
3) CRC (verification and) for receiving data is not true (OK).
4) agreement, data area, form of data are received not in predetermined scope.
Fig. 3 represents the transmission handling process of the transmitter 10 in communication control method 1.
Transmitter 10 starts transmission processing in step slo.With timer or the rising of the voltage of Reserve Power Division 15, Reserve Power Division
15 voltage detecting, sensor signal, external signal, switch etc. start transmission processing as triggering.
Transmitter 10 is initially set in step s 11.Specifically, it is transmitted the preparation of data, sends channel
Precedence setting, transmission times setting.The channel of this transmission is set in step s 12, is carried out in step s 13 in the channel
Send.Increase the transmission count value of transmitting counter in step S14, judge that transmission times (sends and counted in step S15
Value) whether it is more than setting number of times.It is moved to step S17 when obtaining positive result in step S15 to terminate transmission processing, in step
Step S12 is moved to when obtaining negative decision in rapid S15 after the standby scheduled time in step s 16.Like this, transmitter
10, by repeat step S12-S13-S14-S15-S16-S12, as shown in Figure 2 A, (mean once in sending action once
Broadcast transmission) in, carry out interval by least two channel according to the order determined and to be determined, successively
Send the multiple transmission that identical sends data.
In other words, transmitter 10 determines M-ch, S-ch according to pre-determined initial setting, and at least carries out twice
Send successively.Herein, each transmission interval for sending bag is at least that (receiver switching receives time required for channel+normal
Frame length) more than.
Fig. 4 represents the reception processing flow of the receiver 20 of communication control method 1.
Receiver 20 is initially set in the step s 21 when having started reception processing in step S20.It is specific next
Say, obtain and set the precedence for receiving channel.Receiver 20 sets reception channel in step S22, opens and connects in step S23
Receipts portion (i.e. wireless receiving section 21 and base band demodulating portion 22), opens reception and starts to interrupt, in step s 25 in step s 24
Terminate reception processing.
Fig. 5 represents to receive the handling process for starting interruption subroutine.Receiver 20 is worked as to be opened in Fig. 4 step S24
Opened reception start interrupt when, the reception for proceeding by Fig. 4 starts interruption subroutine S30, and timing is closed in step S31
Device is interrupted, and control unit 23 is then received in step s 32 and evaluates whether to normally receive.Specifically, evaluate it is above-mentioned 1)~4)
Project.
Then, garbled-reception is determined whether in step S33.Specifically, receive control unit 23 meet 1)~4)
Project in any one when be judged as garbled-reception (step S33, yes), be judged as normally connecing when not meeting any one
Receive (step S33, no).
When being judged as normally receiving in step S33, it is moved to step S34 to complete to receive and store demodulating data.
Then in step s 35 by the channel that current channel setting is precedence 1, main routine (figure is returned in step S36
4)。
On the other hand, when being judged as garbled-reception in step S33, be moved to step S37 is to judge to set channel
No is final precedence.When it is not final precedence to set channel, step S38 is moved to, is changed according to setting precedence and receives letter
Road, and be moved to step S39 to open timer interruption, main routine (Fig. 4) is returned in step S36.In setting letter
When road is final precedence, step S40 is moved to from step S37, by the channel that receiving channel setting is precedence 1, in step S41
Close timer to interrupt, main routine (Fig. 4) is returned in step S36.
As described above, by communication control method 1, transmitter 10 in sending action once, by least two with
On interval of the channel according to the order determined and to be determined, identical is sent successively and sends data, receiver 20 is stored
The transmission channel number of transmitter 10 and channel precedence is sent, and evaluate that reception channel is normally received or mistake connects
Receive, be judged as busy channel will be received, switch reception channel according to precedence set in advance.
Thereby, it is possible to shorten the time untill being normally received in some channel, and it can improve normal
Communication probability.
In addition, transmitter 10 can by more than two channels and pass through determined order at least twice repeat send out
Send.
Furthermore it is possible to which the interval (cycle) of the frame in the multiple transmission of transmitter 10 and frame is set into the switching letter of receiver 20
Time+normal frame required for road is received more than required time+receiving frame evaluation time.
In addition, receiver 20 can receive any one packet, it will identify that reception interrupts (frame starting) as triggering,
The information included in receiving frame is evaluated successively, in multiple Phase Evaluation garbled-receptions.
In addition, will be received after channel is switched to next channel of setting due to garbled-reception receiver 20, this is believed
Road is at least set to (the setting number of channel+1) × normal frame time+setting number of channel × transmission interval+blank, have passed through the time
When also not occurring to receive interruption, it can will receive channel and return to initial channel.Or, multiple channels can be being set successively
Shi Jinhang, if hereafter interrupted in finally setting channel without reception, is similarly returned to initial to the switching of the channel
Channel.
<Communication control method 2>
Fig. 6 represents the principle of communication control method 2.Fig. 6 A represent the principle of the first sending action of transmitter 10, Fig. 6 B
The operating principle of receiver 20 is represented, Fig. 6 C represent the principle of the first sending action of transmitter 10.
In communication control method 2, as shown in Figure 6A, transmitter 10 is identical with above-mentioned communication control method 1, once
In sending action (meaning broadcast transmission once), carry out by least two channel according to the order determined simultaneously
With the interval determined, the multiple transmission that identical sends data is sent successively.It is multiple in three channels in Fig. 6 A example
Ground carries out broadcast transmission.Data and sending side PHY information (M-ch, S-ch setting and precedence) are included in each transmission frame.
In addition, in communication control method 2, transmitter 10 receives after each transmission frame is sent and comes from receiver 20
ACK.The transmission interval of each transmission frame is at least set to receive the more than time of ACK from RX, set in the present embodiment
For the time of IEEE802.15.4 defineds.After each transmission frame is sent, transmitter 10 receives the ACK from receiver 20, because
This turns into reception state untill next transmission time.
As shown in Figure 6B, receiver 20 is identical with above-mentioned communication control method 1, in a predetermined sequence successively to receiving
Channel is demodulated.Herein, the precedence for sending channel number and progress reception demodulation of the storage of receiver 20 transmitter 10,
Reception demodulation is carried out to channel successively according to the order of storage.In addition, the channel that receiver 20 evaluates after progress reception demodulation is
Normally receive or garbled-reception, when being evaluated as garbled-reception, reception channel is switched immediately according to the precedence prestored.Figure
6B example be received at first in channel due to other receivers 20 occupy the reception channel (being busy condition) because
This turns into garbled-reception, and wave environments are bad therefore as garbled-reception due to around in second reception channel, the 3rd
The example that can be normally received in individual reception channel.So far, it is identical with above-mentioned communication control method 1.
In addition, in communication control method 2, receiver 20 evaluates the receiving quality of each channel, is normally receiving
Cheng Shi, returns to ACK to transmitter 10 by the channel (channel normally received), thus switches transmitter 10
M-ch。
As a result, as shown in Figure 6 C, transmitter 10 improves the transmission precedence for the channel for returning ACK when sending next time
To be transmitted.In addition, receiver 20 waits down the channel setting for returning ACK for the reception channel initially received
It is secondary to receive.That is, transmitter 10 improves the transmission precedence of the high channel of the possibility normally received, and receiver 20 is by same
Precedence wait the channel to receive.Thus, the processing in order to normally receive and need can be shortened compared with communication control method 1
Time, the communication of more low consumpting power can be realized.
Fig. 7 represents the transmission handling process of the transmitter 10 of communication control method 2.
Transmitter 10 starts transmission processing in step s 50.The transmission is handled on timer, the voltage of Reserve Power Division 15
Liter, the voltage detecting of Reserve Power Division 15, sensor signal, external signal, switch etc. start as triggering.
Transmitter 10 is initially set in step s 51.Specifically, it is transmitted the preparation of data, sends channel
Precedence setting, transmission times setting.This channel being transmitted is set in step S52, in the channel in step S53
It is transmitted.Now, except data, sending side PHY information (M-ch, S-ch setting and precedence) is also sent.Then exist
Acceptance division is opened in step S54, and (transmitter 10 is the structure without acceptance division in the structure of fig. 1, but in order to realize communication
Control method 2 has the structure of acceptance division, it is necessary to be set to transmitter 10), the ACK from receiver 20 is received in step S55.
Judge in step S56 ACK receive whether time-out, be judged as it is not overtime in the case of, be moved to step S57 simultaneously
Storage receives ACK channel, changes transmission precedence according to ACK channel is received in step S58, and store after change
Transmission precedence.Then, transmission processing is terminated in step S59.
On the other hand, in the case of being judged as that ACK receives time-out in step S56, it is moved to step S60 and increases transmission
The transmission count value of counter, judges whether transmission times (transmission count value) is more than setting number of times in step S61.In step
Obtain being moved to step S59 during positive result in S61 terminating transmission processing, when obtaining negative decision in step S61, in step
In rapid S62 step S52 is moved to after the standby scheduled time.Like this, transmitter 10 passes through repeat step S52-S53-S54-
S55-S56-S60-S61-S62-S52, as shown in Figure 6A, in sending action once (meaning broadcast transmission once) enters
Row sends according to the order determined and successively identical transmission number by least two channel with the interval determined
According to multiple transmission and ACK reception action.
In addition, transmitter 10 will return the M-ch that ACK channel is sent as next time, in order to notify the switching action
Update PHY information.
Fig. 8 represents the reception processing flow of the receiver 20 of communication control method 2.
Receiver 20 is initially set when having started reception processing in step S70 in step S71.It is specific next
Say, obtain and set the precedence for receiving channel.Receiver 20 sets reception channel in step S72, in step S73, will connect
Receipts portion opens and starts to interrupt by reception and opens, and in step S74, timer is interrupted and opened, terminates to connect in step S75
Receipts processing.
Fig. 9 represents to receive the handling process for starting interruption subroutine.Receiver 20 is worked as will in Fig. 8 step S73
When reception starts to interrupt unlatching, the reception for starting Fig. 9 starts interruption subroutine S80, and control unit 23 is received in step S81
Evaluate whether to normally receive.Specifically, evaluate it is above-mentioned 1)~project 4).
Then, garbled-reception is determined whether in step S82.It is mobile when being judged as normally receiving in step S82
Data receiver is completed to step S83 and demodulating data is stored.
Then current PHY information is compared with the current channel that receives in step S84, when the judgement in step S84
When being differed for current PHY information and current receive information, it is moved to step S86 and returns to ACK by currently receiving channel.With
This is relative, when being judged as that current PHY information is identical with current reception channel, is moved to step S87 and returns to main routine
(Fig. 8).
In addition, when being judged as garbled-reception in step S82, being moved to step S88, it will receive and believe according to setting precedence
Road is changed to next reception channel.Then, then determine after channel precedence, returned in step S87 again in step S89
Return to main routine (Fig. 8).
Figure 10 represents the handling process of timer interruption subroutine.Receiver 20 is worked as in Fig. 8 step S74 meter
When device interrupt when opening, start Figure 10 timer interruption subroutine S90, RSSI (Received determined in step S91
Signal Strength Indicator, received signal strength indicator), evaluated based on the RSSI being measured in step S92
Receive channel quality and preserve evaluation result, determine that channel switches and determines channel precedence in step S93, in step S94
Return to main routine (Fig. 8).
In addition, as the index for evaluating the quality for receiving channel, RSSI when normally receiving, mistake can be used to connect
RSSI under the RSSI of the SFD frames in time receiving, the wrong occurrence frequency of each channel and resume, the holding state of each channel etc..Normally
RSSI during reception is and the corresponding value, the RSSI such as the presence or absence of the distance between transmitter 10 and receiver 20, barrier
More big then receiving quality is better.The RSSI of SFD frames during garbled-reception is to receive the influence that device 20 is assigned with other equipment interconnections
Corresponding value, the RSSI is more big, and then receiving quality is poorer.RSSI under the holding state of each channel is and receiver periphery
The corresponding value of noise, the RSSI is more big, and then receiving quality is poorer.
As described above, by communication control method 2, transmitter 10 in sending action once, by least two with
On channel is according to the order determined and sends identical successively with the interval determined and sends data, and from receiver 20
The information for representing to send channel precedence is obtained and stored, current transmission channel precedence is notified to receiver, while based on initial
Setting precedence or the transmissions channel precedence obtained from receiver 20 are switched into the precedence for the channel that row is sent, while to be determined
It is spaced the letter that channel precedence is sent by the transmission of time division multiplexing mode progress identical data and the expression from receiver 20
The reception of breath.
On the other hand, the storage of receiver 20 receives channel number and precedence, and receives and store from transmitter 10
The transmission channel number of notice and transmission channel precedence, the information for representing to send channel precedence is sent to transmitter 10, is evaluated
Receive channel to normally receive or garbled-reception, evaluate the receiving quality of each channel, when having carried out mistake in setting channel
During reception, channel is received according to precedence set in advance switching, and according to the result after evaluating each channel to transmission
Device notifies the transmission channel precedence sent next time.
Thereby, it is possible to shorten until the time untill some channel is normally received, and positive normal open can be improved
Believe probability.
In addition, transmitter 10 can at least twice repeat to send out by more than two channels according to the order determined
Send and receive.
In addition, transmitter 10 can maintain the reception shape after being sent according to the channel precedence determined by certain time
State, receives the reception completion notice from receiver 20 during this period, thus regard the channel as the first hair during transmission next time
Channels are stored, and are transmitted the change of channel precedence.
In addition, receiver 20 can be by evaluating some assessment item or scoring item in following assessment items enumerated
Purpose combines to evaluate the receiving quality of each channel, after completing to normally receive, and is returned and finished receiving by the channel, thus entered
The next time first of row transmitter 10 sends the instruction of channel.
Completion is normally received in the channel
RSSI (receiving sensitivity) when normally receiving
The RSSI (receiving sensitivity) of SFD frames during garbled-reception
Wrong occurrence frequency, the resume of each channel
Furthermore it is possible to which the interval (cycle) of the frame and frame during the multiple transmission of transmitter 10 is received is set to receiver 20 and cut
Change the time required for channel+normal frame receive required for time+receiving frame evaluation time or connecing from receiver 20
Receive more than completion notice.
In addition, will be received after channel switches to next channel of setting due to garbled-reception receiver 20, this is believed
Road is at least set to (the setting number of channel+1) × normal frame time+setting number of channel × transmission interval+blank, even if having passed through this
When interruption does not occur to receive for the time yet, channel will be received and return to initial channel.Or, multiple channels can be being set successively
Shi Jinhang, if hereafter interrupted in finally setting channel without reception, is similarly returned to initial to the switching of the channel
Channel.
In addition, receiver 20 can receive any one packet, it will identify that reception interrupts (frame starting) as triggering,
The information included in receiving frame is evaluated successively, in multiple Phase Evaluation garbled-receptions.
<Communication control method 3>
Figure 11 represents the principle of communication control method 3.Figure 11 A represent the principle of the sending action of transmitter 10, Figure 11 B tables
Show the principle of the reception action of receiver 20.
In communication control method 3, as shown in Figure 11 A, transmitter 10 is identical with above-mentioned communication control method 1, one
Carried out in secondary sending action (meaning broadcast transmission once) suitable according to what is determined by least two channel
Sequence and the interval to be determined, send the multiple transmission that identical sends data successively.In Figure 11 A example, in three letters
Many important places carry out broadcast transmission in road.
As shown in Figure 11 B, receiver 20 is identical with above-mentioned communication control method 1, docks successively in a predetermined sequence
Collection of letters road is demodulated.Herein, the reception channel duration is passed through until receiving untill the quality of channel turns into below predetermined value
Receive, and next reception channel is switched to when the quality for receiving channel turns into below predetermined value.
The transmission handling process of the transmitter 10 of the communication control method 3 and the transmission in above-mentioned communication control method 1
The transmission handling process (Fig. 3) of device 10 is identical.
Figure 12 represents the reception processing flow of the receiver 20 of communication control method 3.
Receiver 20 is initially set when having started reception processing in the step s 100 in step S101.Specifically
For, obtain and set the precedence for receiving channel.Receiver 20 sets reception channel in step s 102, in step s 103 will
Acceptance division is opened, and reception is started into interruption unlatching, is interrupted timer in step S104 and is opened, is tied in step S105
Beam reception processing.
Figure 13 represents to receive the handling process for starting interruption subroutine.Receiver 20 is when in Figure 12 step S103
When starting to interrupt unlatching by reception, the reception for starting Figure 13 starts interruption subroutine S110, obtains and (surveys in step S111
It is fixed) and store RSSI.Then control unit 23 is received in step S112 to evaluate whether to normally receive.Specifically, in evaluation
State 1)~project 4).
Then, garbled-reception is determined whether in step S113.It is mobile when being judged as normally receiving in step S113
Data receiver is completed to step S114 and demodulating data is stored.Then the quality for normally receiving channel is evaluated in step sl 15
And evaluation result is preserved, main routine (Figure 12) is returned in step S116.
In addition, when being judged as garbled-reception in step S113, being moved to step S117 to evaluate the product of reception channel
Matter simultaneously preserves evaluation result.Then, channel switching is determined in step S118, and determines channel precedence.Then, in step S119
It is middle to judge whether channel switching is correct, is moved to step S116 when incorrect, channel will be received in step S120 when correct
It is changed to after next channel, is moved to step S116.
Figure 14 represents the handling process of timer interruption subroutine.Receiver 20 is when the handle in Figure 12 step S104
When timer interrupts unlatching, start Figure 14 timer interruption subroutine S130, determine and store in step S131
RSSI.In step S132, reception channel quality is evaluated based on the RSSI determined in step S131 and evaluation result is preserved,
Determine that channel switches and determines channel precedence in step S133.Then judge whether channel switching is correct in step S134,
Step S135 is moved to when incorrect to return to main routine (Figure 12).Channel will be received in step S136 when correct to become
After more next channel, step S135 is moved to.
In this way, carry out communication control method 3 receiver 20 interrupted by SFD, timer interrupt detection ambient noise and
Receiving intensity, when being judged as needing to switch reception channel according to the evaluation of channel quality, channel will be received rapidly according to evaluating
It is switched to S-ch and its later channel.
As described above, by communication control method 3, transmitter 10 in sending action once, by least two with
On interval of the channel according to the order determined and to be determined, identical is sent successively and sends data, receiver 20 is stored
With the identical channel number of transmitter 10, the quality for receiving channel is evaluated, is cut when receiving the quality of channel for below predetermined value
Changing-over collection of letters road.
Thereby, it is possible to shorten until the time untill some channel is normally received, and positive normal open can be improved
Believe probability.
In addition, receiver 20 can be in setting channel determine the signal power that receives, as receiving intensity
(RSSI) stored, and by RSSI when receiving data from transmitter 10 with it is standby when the RSSI of noise signal carry out
Compare, the action of channel is switched over when difference is below pre-determined value.
In addition, receiver 20 can constantly store RSSI, by the current communication probability of the channel in setting and past
The communication probability resume of other channels used are compared, the effect after the switching of prediction channel, and judging whether in advance
Switch and be switched to which channel.
In addition, receiver 20 can constantly store the pairing of resume at the time of multiple RSSI are detected with it, individually or
It is applied in combination the Forecasting Methodology such as method of moving averages or most adjacent method, exponential smoothing, uses using setting channel and in the past
The RSSI of other channels carries out the judgement switched to channel.
In addition, in transmitter 10 sends the multiple transmission of data successively, be at least set to three times by multiple transmission times,
Time required for the data of one channel are sent is set to tT, the transmission interval of multiple transmission is set into tD, by receiver 20
When the minimum interval of switching channel is set to tE, by the way that tE is set into tD+2 × more than tT, it can prevent transmission from receiving channel mutual
Miss, lose the situation of receiver meeting.
In addition, multiple transmission times is at least set to four times, and the transmission channel of even-times and odd-times is set to identical,
Receiver meeting thus, it is possible to produce the channel in reception period at least one times.
<Communication control method 4>
Communication control method 4 not carries out the reception channel busy because current as above-mentioned communication control method 1
So even if wait also nonsensical such judgement.If communication control method 4, which obtains any reception, can all switch channel,
Make it possible to be normally received in multiple channels, thus improve the probability normally received.
The transmission order of transmitter 10 is identical with communication control method 1.
Receiver 20 carries out following processing.
According to pre-determined initial setting, M-ch is set as to receive channel.
Any reception of detection is interrupted by SFD, regardless of whether being garbled-reception, all maintains to receive letter with certain time
Road.
Waited untill next transmission timing, switching receives channel.
The also standby scheduled time, and automatically switch channel after S-ch and S-ch.
The standby time after S-ch and S-ch is set to (setting ch numbers+1) × frame time+setting ch numbers × hair
Send interval+blank.
After final channel is switched to, M-ch is returned to, is carried out standby.
Figure 15 represents the reception processing flow of the receiver 20 of communication control method 4.
Receiver 20 is initially set in step s 141 when having started reception processing in step S140.Specifically
For, obtain and set the precedence for receiving channel.Receiver 20 sets reception channel in step S142, will in step S143
Acceptance division is opened and starts to interrupt by reception and opens, and reception processing is terminated in step S144.
Figure 16 represents to receive the handling process for starting interruption subroutine.Receiver 20 is when in Figure 15 step S143
When starting to interrupt unlatching by reception, the reception for starting Figure 16 starts interruption subroutine S150, timing in step S151
Device, which is interrupted, to be opened, and control unit 23 is then received in step S152 evaluates whether to normally receive.Specifically, evaluation is above-mentioned 1)
~project 4).
Then, garbled-reception is determined whether in step S153.Specifically, receive control unit 23 meet 1)~4)
Project in any one project when be judged as garbled-reception (step S153, yes), be judged as when not meeting any one
Normally receive (step S153, no).
When being judged as normally receiving in step S153, it is moved to step S154 to complete to receive and store demodulation number
According to.Timer impeding shutdown in step S155, the channel that current channel setting is precedence 1 in step S156,
Main routine (Figure 15) is returned in step S157.
On the other hand, when being judged as garbled-reception in step S153, it is moved to step S157 to return to main routine
Program (Figure 15).
Figure 17 represents the handling process of timer interruption subroutine.Receiver 20 is when the handle in Figure 16 step S151
When timer interrupts unlatching, start Figure 17 timer interruption subroutine S160, setting channel is judged in step S161
Whether it is final precedence, if not final precedence, is then moved to step S162 and receives channel according to setting precedence change,
Timer is interrupted after unlatching in step S163, returned in step S164.On the other hand, when be judged as in step S161 setting
When channel is final precedence, it is moved to step S165 and channel of the channel setting as precedence 1 will be set, meter in step S166
When device impeding shutdown after, in step S164 return.
As described above, by communication control method 4, transmitter 10 is in a sending action, by least two
Interval of the channel according to the order determined and to be determined, identical is sent successively and sends data, the storage hair of receiver 20
Send the transmission channel number of device 10 and send channel precedence, by timer with switching reception channel with sending interval synchronization,
Order switching according to being determined receives channel, and repeatedly receives the multiple transmission sent from transmitter 10 by different channels
Data.
Thereby, it is possible to shorten until the time untill some channel is normally received, and positive normal open can be improved
Believe probability.
In addition, receiver 20 can determine the signal power received in the channel in setting, and as reception
Intensity (RSSI) is compared with numerical value set in advance, some electric wave of the reception of receiver 20, and RSSI when this is received is to set
More than definite value situation as channel transfer sequence triggering.
Above-mentioned embodiment is only represented to implement the specific example of the present invention, come restrictively not by them
Explain the technical scope of the present invention.That is, can be by various in the range of spirit of the invention or its principal character is not departed from
Mode is implemented.
Refer to that 2 months 2015 Patent 2015-022198 Japanese publication filed in 6 days are included in this application says
All disclosures of bright book, accompanying drawing and specification digest.
Industrial application
The present invention is applied to following communication system, and the communication system has transmitter and receiver, wherein, transmitter
With the Power Generation Section that mechanical energy is transformed to electric energy, the electric energy obtained by Power Generation Section is used as power supply to be transmitted wirelessly,
Receiver receives the wireless signal sent by transmitter.
The explanation of symbol
10：Transmitter
11：Baseband processing section
12：Wireless transmission part
13：Transmission control unit
14：Power Generation Section
15：Reserve Power Division
20：Receiver
21：Wireless receiving section
22：Base band demodulating portion
23：Receive control unit.
Claims (4)
1. a kind of communication system, it has transmitters and receivers, and the transmitter has the hair that mechanical energy is transformed to electric energy
Electric portion, the electric energy obtained by the Power Generation Section is used as power supply to be transmitted wirelessly, and the receiver is received by the hair
The wireless signal of device transmission is sent, the communication system is characterised by,
The transmitter is in sending action once, by least two channel according to the order determined and with institute
The interval of decision sends identical and sends data successively, and is obtained from the receiver and store expression transmission channel precedence
Information, current transmission channel precedence is notified to the receiver, while being taken based on initial setting precedence or from the receiver
The transmission channel precedence switch the precedence for the channel being transmitted, while passing through time division multiplexing with the interval determined
The transmission of the identical data and the reception of the expression information for sending channel precedence from the receiver are carried out,
The receiver storage receives channel number and precedence, and receives and store the transmission letter notified from the transmitter
Road is numbered and the transmission channel precedence, is sent to the transmitter and is represented the information for sending channel precedence, evaluation connects
Collection of letters road is normally received or garbled-reception, evaluates the receiving quality of each channel, is connect having carried out mistake by setting channel
In the time receiving, channel is received according to precedence set in advance switching, and according to the result after evaluating each channel to the hair
The transmission channel precedence for sending device to notify send next time.
2. a kind of unidirectional communication system, it has transmitters and receivers, and the transmitter has is transformed to electricity by mechanical energy
Can Power Generation Section, the electric energy that is obtained by the Power Generation Section is used as power supply and transmitted wirelessly, the receiver receive by
The wireless signal that the transmitter is sent, the unidirectional communication system is characterised by,
The transmitter is in sending action once by least two channel according to the order determined and with institute
The interval of decision sends identical and sends data successively,
The receiver stores the transmission channel number of the transmitter and sends channel precedence, and it is normal to evaluate and receive channel
Receive or garbled-reception, be judged as busy channel will be received, channel is received according to precedence set in advance switching.
3. a kind of unidirectional communication system, it has transmitters and receivers, and the transmitter has is transformed to electricity by mechanical energy
Can Power Generation Section, the electric energy that is obtained by the Power Generation Section is used as power supply and transmitted wirelessly, the receiver receive by
The wireless signal that the transmitter is sent, the unidirectional communication system is characterised by,
The transmitter is in sending action once, by least two channel according to the order determined and with institute
The interval of decision sends identical and sends data successively,
The receiver storage and the transmitter identical channel number, and the quality for receiving channel is evaluated, receiving channel
Quality for below predetermined value when switching receive channel.
4. a kind of unidirectional communication system, it has transmitters and receivers, and the transmitter has is transformed to electricity by mechanical energy
Can Power Generation Section, the electric energy that is obtained by the Power Generation Section is used as power supply and transmitted wirelessly, the receiver receive by
The wireless signal that the transmitter is sent, the unidirectional communication system is characterised by,
The transmitter is in sending action once, by least two channel according to the order determined and with institute
The interval of decision sends identical and sends data successively,
The receiver stores the transmission channel number of the transmitter and sends channel precedence, by between timer and transmission
Channel is received every synchronously switching, receives channel repeatedly to receive from institute by different channels according to the order switching determined
State the data of the multiple transmission of transmitter transmission.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP2015022198A JP6531410B2 (en) | 2015-02-06 | 2015-02-06 | Communications system |
| JP2015-022198 | 2015-02-06 | ||
| PCT/JP2016/000578 WO2016125496A1 (en) | 2015-02-06 | 2016-02-04 | Communications system |
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| CN107211397A true CN107211397A (en) | 2017-09-26 |
| CN107211397B CN107211397B (en) | 2020-12-04 |
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| CN (1) | CN107211397B (en) |
| WO (1) | WO2016125496A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112262417A (en) * | 2018-06-14 | 2021-01-22 | 住友电气工业株式会社 | Wireless sensor system, wireless terminal device, communication control method, and communication control program |
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| JP2010118970A (en) * | 2008-11-14 | 2010-05-27 | Meidensha Corp | Method of communicating data on ad hoc network |
| JP5267356B2 (en) * | 2009-06-30 | 2013-08-21 | 富士電機株式会社 | Sensor network system |
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2015
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- 2016-02-04 WO PCT/JP2016/000578 patent/WO2016125496A1/en active Application Filing
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| JP2003258774A (en) * | 2002-03-01 | 2003-09-12 | Denso Corp | Short range radio communication system, hands-free call system for vehicle, and communication control method for short range radio communication system |
| JP2004289693A (en) * | 2003-03-24 | 2004-10-14 | Matsushita Electric Ind Co Ltd | Radio communication method and radio communication apparatus |
| CN101064690A (en) * | 2006-03-02 | 2007-10-31 | 迪康公司 | Method for receiving a signal transmitted over several channels and corresponding device |
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| CN112262417A (en) * | 2018-06-14 | 2021-01-22 | 住友电气工业株式会社 | Wireless sensor system, wireless terminal device, communication control method, and communication control program |
| CN112262417B (en) * | 2018-06-14 | 2022-09-20 | 住友电气工业株式会社 | Wireless sensor system, wireless terminal device, communication control method, and communication control program |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6531410B2 (en) | 2019-06-19 |
| JP2016146532A (en) | 2016-08-12 |
| WO2016125496A1 (en) | 2016-08-11 |
| CN107211397B (en) | 2020-12-04 |
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