CN103248434A - Communication method for electronic device - Google Patents
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- CN103248434A CN103248434A CN 201210031419 CN201210031419A CN103248434A CN 103248434 A CN103248434 A CN 103248434A CN 201210031419 CN201210031419 CN 201210031419 CN 201210031419 A CN201210031419 A CN 201210031419A CN 103248434 A CN103248434 A CN 103248434A
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Abstract
The invention relates to a communication method, in particular to acoustic wave wireless communication. The invention provides a direct inline method of an electronic device and a mobile phone, a computer and other intelligent terminals through acoustic wave wireless communication, or a direct inline method among intelligent terminals such as mobile phones and computers through acoustic wave wireless communication, and mainly solves the problem that without a hardware radio frequency communication circuit or transit equipment such as central controllers and network nodes, the communication of the intelligent terminals such as the mobile phones and the computers with other electronic devices can not be realized.
Description
Technical field
The present invention relates to a kind of communication means, especially the sound wave radio communication.
Background technology
Sound wave wireless communications method proposed by the invention is applicable to the intelligent terminal of band loud speaker such as various electronic and electrical equipments and mobile phone, panel computer and MIC with the wireless mode on-line communication, or the radio communication between two mobile phones, computer.
At present, electronic and electrical equipment is online with mobile phone or computer wireless if desired, must be with wireless radio frequency mode, the information of this equipment is sent to central controller or message exchanges such as router or UKey, data acquisition unit, is connected to mobile phone, computer or Ethernet by message exchange as transferring equipment.
The communication of employing RF-wise needs transmitting apparatus all to be furnished with the radio frequency communications circuitry of same frequency, identical communications protocol with receiving equipment.There is different standards in various countries to the radio frequency wireless frequency, adopt 315MHz/915MHz as: north America region, and European Region adopts 433MHz/868MHz, universal frequency 2.4GHz etc. all over the world.In addition, the radio communication agreement also has different standards, as Zigbee, Zwave, AplusWave agreement or the self-defining communications protocol based on the IEEE802.15.4 standard.
Wireless radiofrequency communication is applicable to the telecommunication greater than 3M, to needing the occasion of short-range communication, as stored value card or the electronic and electrical equipment of directly communicating by letter with intelligent terminals such as mobile phone, computers for needs, is not suitable for adopting the wireless radiofrequency communication mode.
In close range wireless communication, the NFC(Near Field Communication the short distance wireless communication technology that goes out based on the RFID derives from technology) progressively is applied to mobile-phone payment (stored value card), the mobile phone of some brand is by the inner RFID chip of implanting, only need picture brush mass transit card that mobile phone one is brushed on the special-purpose electronic and electrical equipment, pay with regard to realizing.
This NFC communication based on the RFID technology, need on mobile phone, additionally increase the RFID chip, or adopt special-purpose SIM card, only be applicable to mobile phone with read-write machine dedicated between communicate by letter, and can not between common electronic and electrical equipment and mobile phone or mobile phone and mobile phone, realize radio communication.
Summary of the invention:
The object of the present invention is to provide intelligent terminals such as a kind of electronic and electrical equipment and mobile phone, computer by the direct online method of radio communication, or pass through directly online method of radio communication between the intelligent terminals such as mobile phone and mobile phone.Mainly solve intelligent terminals such as mobile phone, computer the problem that the hardware radio frequency communications circuitry maybe must just can be communicated by letter with other electronic and electrical equipment by transferring equipment such as central controller, network nodes must be installed.
The objective of the invention is to be achieved through the following technical solutions:
A kind of communication means of electronic and electrical equipment, adopt sound wave frequency shift keying communication mode, it is characterized in that: represent different code elements respectively with sound wave carrier frequency different more than two or two, the sound wave that receives is decoded and/or the sound wave that sends is encoded by the sound wave telecommunication circuit, the sound wave of unidirectional reception or bidirectional transmit-receive specific coding form and characteristic frequency, carry out data communication, the frequency range of sound wave is: audio frequency and/or ultrasonic frequency.
Described code element is characterized in that: the sound wave carrier frequency that represents each code element is the frequency of sound wave of fixing; Or the sound wave carrier frequency that represents each code element can adopt different frequencies according to software control.
Described sound wave carrier frequency is characterized in that: two sound waves of different frequencies carrier frequency progressively increase/are reduced to carrier frequency f b by carrier frequency f a when carrier frequency f a switches to carrier frequency f b, and two different sound wave carrier frequency continuous gradations are switched; Or two sound waves of different frequencies carrier frequency directly switch to carrier frequency f b by carrier frequency f a when carrier frequency f a switches to carrier frequency f b.
A kind of communication means of electronic and electrical equipment adopts sound wave frequency shift keying communication mode, it is characterized in that: rearrange a code element in twos in proper order by 4 sound wave carrier frequency, the numeral among the corresponding hexadecimal 0 ~ F of each code element difference;
A kind of communication means of electronic and electrical equipment adopts sound wave frequency shift keying communication mode, it is characterized in that: 4 sound wave carrier frequency are arranged, and each sound wave carrier frequency is as a code element, and the binary number of the respectively corresponding 2bits of each code element is respectively 00,01,10,11.
A kind of communication means of electronic and electrical equipment adopts sound wave frequency shift keying communication mode, and it is characterized in that: with 2 sound wave carrier frequency, each frequency of sound wave represents binary number 0 and 1 respectively as a code element.
A kind of communication means of electronic and electrical equipment adopts sound wave frequency shift keying communication mode, it is characterized in that: disposable being sent completely of instruction can not send in segmentation; Or the instruction of a long word joint number is removable is divided into a few set of segmentation data and sends in proper order, after transmitting apparatus sends set of segmentation data, wait for the affirmation signal of receiving equipment feedback, after receiving the affirmation signal of receiving equipment feedback, transmitting apparatus sends next set of segmentation data again, and Using such method all is sent completely up to these all bytes of instruction.
A kind of communication means of electronic and electrical equipment, adopt sound wave frequency shift keying communication mode, it is characterized in that: data communication format comprises: initial synchronous code (Start Sync), data length (Datalength), seeker (Header), device number (Serial ID), command code (Payload), check code (Checksum), end mark (Stop Sync).
Described data length is characterized in that: data length is variable, and different instructions has its corresponding data length.
A kind of communication means of electronic and electrical equipment adopts sound wave frequency shift keying communication mode, and it is characterized in that: cryptographic algorithm is adopted in data communication, data length, seeker, device number, command code, check code is encrypted transmitted; Or to the encryption of the partial data in data length, seeker, device number, command code, check code transmission; Or all data are not encrypted the transmission of employing transparent mode.
The present invention contrasts prior art, has following innovative point:
1. adopt the sound wave communication, sound wave as wireless carrier, and is carried out Code And Decode to sound wave, realize short range wireless transmission.
2. in electronic and electrical equipment, be furnished with the sound wave telecommunication circuit, can unidirectional reception or bidirectional transmit-receive have the sound wave of specific coding form, and it is decoded or encoding and decoding.
3. control software is installed in intelligent terminals such as mobile phone or panel computer or computer, and this software has sound wave encoding and decoding control program, by MIC and the loud speaker of mobile phone or apparatus such as computer, receives and send the sound wave of specific coding form.
The present invention contrasts prior art, has following remarkable advantage:
Electronic and electrical equipment can be directly and intelligent terminals such as mobile phone or computer online, do not need the switching of other intermediate equipment, as message exchange (router, UKey, data acquisition unit etc.).
2. intelligent terminal such as mobile phone or computer does not need to install other hardware circuit, as RFID chip, radio frequency communications circuitry etc. can be directly and electronic and electrical equipment online.
3. can replace special-purpose central controller with intelligent terminals such as mobile phone, computer, panel computers, not only save the cost of electronic and electrical equipment, and strengthened the convenience of the attainable function of electronic equipment and man-machine interaction greatly.
4. as long as upgrade the control software that is loaded in the intelligent terminals such as mobile phone or computer, do not need to redesign product, can realize new function or improve original function, make product more competitive.
Description of drawings
Fig. 1 is sound wave two-way communication schematic diagram.
Fig. 2 is sound wave one-way communication method schematic diagram.
Fig. 3 is application key diagram of the present invention.
Fig. 4 is sound wave frequency shift keying (FSK) the communication waveforms schematic diagram of binary element.
Fig. 5 is that binary element adopts different sound wave carrier frequency frequency exemplary plot.
Fig. 6 rearranges a code element oscillogram according to sequencing in twos by 4 carrier frequency.
Fig. 7 forms a hexadecimal code element table in twos by 4 frequency of sound wave.
Fig. 8 adopts 4 carrier frequency to represent the frequency-code element schematic diagram of a 2bits binary number respectively.
Fig. 9 be based on 4 sound wave carrier frequency under the different communication situation, the carrier frequency sample table.
Figure 10 is 2 sound wave carrier frequency switching waveform schematic diagrames.
Figure 11 is 2 direct switch operating schematic diagrames of different carrier frequency.
Figure 12 is a kind of data communication format schematic diagram.
Embodiment
To help to understand the present invention by the following description of the embodiments, but not limit content of the present invention.
The present invention adopts the sound wave method for communicating as shown in Figure 1, and intelligent terminal such as mobile phone, computer, panel computer and electronic and electrical equipment carry out RFDC by sound wave.Frequency of sound wave adopts audio frequency 20-20KHz and greater than the ultrasonic frequency of 20KHz, wherein, mainly adopts the frequency of sound wave of 5KHz ~ 25KHz.In specific sound wave communication protocol, adopt one or more different frequency of sound wave as carrier wave, according to specific coded format, carry out data communication.
The configuration information of user on intelligent terminals such as mobile phone, panel computer is converted to data command by control software, according to specific sound wave communications protocol format, sound wave is encoded, and will be that the instruction of carrier wave sends to electronic and electrical equipment with the specific acoustic wave frequency by the sound wave transtation mission circuit.
After the sound wave telecommunication circuit of electronic and electrical equipment receives the sound wave instruction by the sound wave receiving circuit, it is decoded, acquisition meets the instruction of identical sound wave communication protocol, and send instruction to control chip (MCU), control chip shows corresponding information or controls corresponding output by output control circuit at display circuit according to the instruction of receiving, as voltage, electric current or waveform output or by data communication interface (USB, RS232, SPI, UART, Ethernet interface) data is transmitted to miscellaneous equipment that electronic and electrical equipment connects (as computer, server etc.).
In the time of information need being sent to intelligent terminals such as mobile phone when electronic and electrical equipment, control chip is passed to the sound wave telecommunication circuit with data command waiting for transmission, according to specific sound wave communications protocol format, encode by the sound wave telecommunication circuit, be converted to acoustic signals, instruction sent to intelligent terminals such as mobile phone or panel computer by the sound wave transtation mission circuit.
Intelligent terminal such as mobile phone, computer is decoded to the sound wave that receives by control software after receiving the sound wave instruction by the sound wave receiving circuit, obtains corresponding data command, in control software relevant treatment is carried out in this instruction.
More than be the method explanation of sound wave two-way communication, as shown in Figure 1.Adopt the method for sound wave two-way communication, information can be carried out two-way communication between intelligent terminal such as mobile phone, panel computer and electronic and electrical equipment, and this method can effectively solve loss of data or the error code problem in the communication process.
If consider the cost of electronic and electrical equipment, also can adopt the mode of sound wave one-way communication, as shown in Figure 2.In Fig. 2, have only the unidirectional reception of sound wave in the sound wave telecommunication circuit of electronic and electrical equipment, there is not the sound wave sending function.After the sound wave telecommunication circuit receives the sound wave instruction by the sound wave receiving circuit, it is decoded, acquisition meets the instruction of the same communications protocols, and send instruction to control chip (MCU), control chip shows corresponding information or controls corresponding output by output control circuit at display circuit according to the instruction of receiving, as voltage, electric current or waveform output or by data communication interface (USB, RS232, SPI, UART, Ethernet interface) data is transmitted to the miscellaneous equipment (as computer, server etc.) that electronic and electrical equipment connects.
Adopt sound wave one-way communication mode shown in Figure 2, electronic and electrical equipment is given in information one-way transmission on the intelligent terminal such as mobile phone, computer, can not obtain the state information of electronic and electrical equipment, this method is applicable to higher or in the lower product of functional requirement to cost requirement.
Among the present invention, electronic and electrical equipment also can be according to product needed except can be by sound wave with intelligent terminals such as mobile phone, computer are communicated by letter, communication mutually between two electronic and electrical equipments; Or communication mutually between intelligent terminals such as two mobile phones, computer, as shown in Figure 3.
Fig. 4 is sound wave frequency shift keying (FSK) the communication waveforms schematic diagram of binary element.In Fig. 4, in period of time T, adopt different carrier frequencies f1 and f2 to represent binary element 0 and 1 respectively, when binary element state conversion (0 → 1 or 1 → 0), the sound wave carrier frequency of output is corresponding to be changed (f1 → f2 or f2 → f1)
In sound wave communication plan proposed by the invention, the sound wave carrier frequency that represents each code element can be the frequency of sound wave of fixing.At binary element shown in Figure 40, the 1 corresponding carrier frequency f1 of difference and f2, f1 and f2 are the frequencies of fixing, for example f1=18KHz and f2=20KHz.When carrying out data communication, carrier frequency f1 and f2 remain unchanged.
In sound wave communication plan proposed by the invention, the sound wave carrier frequency that represents each code element also can be selected different frequency of sound wave by software automatically according to practical communication status.At binary element shown in Figure 40, the 1 corresponding carrier frequency f1 of difference and f2, when communication conditions was good, carrier frequency f1 and f2 adopted upper frequency, and for example f1=18KHz represents code element 0, and f2=20KHz represents code element 1; When communication conditions was relatively poor, carrier frequency f1 and f2 adopted lower frequency, and for example f1=8KHz represents code element 0, and f2=10KHz represents code element 1, as shown in Figure 5.Same code element selects different sound wave carrier frequency to represent, can be selected automatically according to practical communication status or initiatively be selected on control software by the user by software.
Sound wave communication plan proposed by the invention, sound wave communication also can adopt 2 frequencies to represent the mode of a code element, as shown in Figure 6.In Fig. 6, adopt 4 different frequency f 1, f2, f3, f4 as the sound wave carrier frequency, per two carrier frequency rearrange a code element in proper order.In a symbol time length T, two carrier frequency fa and fb respectively account for Ta and Tb time span, and T=Ta+Tb, Ta and Tb can equate also can not wait.Fa and fb represent any one frequency among f1, f2, f3, the f4 respectively among Fig. 6, and in a symbol time length T, fa and fb export in proper order, respectively account for Ta and Tb time span, represent a code element.
Fig. 7 forms a hexadecimal code element table in twos by 4 sound wave carrier frequency.Among Fig. 7,4 frequency of sound wave match in twos, and according to the difference of sequencing of combination, represent hexadecimal number 0 ~ F respectively.
Sound wave communication plan proposed by the invention, sound wave communication also can adopt 4 different frequency f 1, f2, f3, f4 as the sound wave carrier frequency, in period of time T, adopt each sound wave carrier frequency as a code element, the binary number of the respectively corresponding 2bits of each code element, be respectively 00,01,10,11, as shown in Figure 8.
In the communication plan of 4 frequencies of employing proposed by the invention as the sound wave carrier frequency, no matter be that two radio combinations represent a hexadecimal number (0 ~ F) or represent the binary number (00,01,10,11) of a 2bits with a carrier frequency, the sound wave carrier frequency of each code element can be the frequency of sound wave of fixing, for example f1=17KHz, f2=18KHz, f3=19KHz, f4=20KHz.When carrying out data communication, carrier frequency f1, f2, f3 and f4 remain unchanged.
In the communication plan of 4 frequencies of employing proposed by the invention as the sound wave carrier frequency, no matter be that two radio combinations represent a hexadecimal number (0 ~ F) or represent the binary number (00,01,10,11) of a 2bits with a carrier frequency, the sound wave carrier frequency of each code element also can be selected different frequency of sound wave by software automatically according to practical communication status.When communication conditions was good, carrier frequency f1, f2 f3 and f4 adopted upper frequency, for example f1=17KHz, f2=18KHz, f3=19KHz, f4=20KHz.When communication conditions was relatively poor, carrier frequency f1, f2 f3 and f4 adopted lower frequency, for example f1=7KHz, f2=8KHz, f3=9KHz, f4=10KHz.As shown in Figure 9.Same code element selects different sound wave carrier frequency to represent, can be selected automatically according to practical communication status or initiatively be selected on control software by the user by software.
In sound wave wireless communications method proposed by the invention, two sound waves of different frequencies carrier frequency progressively increase/are reduced to carrier frequency f b by carrier frequency f a when carrier frequency f a switches to carrier frequency f b, and two different sound wave carrier frequency continuous gradations are switched.Figure 10 is 2 sound wave carrier frequency switching waveform schematic diagrames.When sound wave carrier frequency f a switches to carrier frequency f b, in transmitting carrier frequency f a period of time T, the fa actual transmissions time is T1, at the T2(T2=T-T1 remaining time of period T) in, progressively increase/be reduced to carrier frequency f b by carrier frequency f a, in Figure 10, the fa frequency press fs1, fs2 ... fsn progressively is changed to fb.
In sound wave wireless communications method proposed by the invention, two sound waves of different frequencies carrier frequency also can directly switch to carrier frequency f b by carrier frequency f a, as shown in figure 11 when carrier frequency f a switches to carrier frequency f b.In each period of time T, have only 1 frequency, switch to carrier frequency f b from carrier frequency f a and directly switch, do not have the intermediate frequency transition.
In sound wave wireless communications method proposed by the invention, data communication format comprises: initial synchronous code (Start Sync), data length (Datalength), seeker (Header), device number (Serial ID), command code (Payload), check code (Checksum), end mark (Stop Sync).Initial synchronous code (Start Sync) sends when instruction begins to transmit at first, is used for the notice receiving equipment and prepares to receive instruction.End mark (Stop Sync) represents that in the last transmission of this instruction or this grouped data this sends end.Data length (Datalength), seeker (Header), device number (Serial ID), command code (Payload), the position of check code (Checksum) in instruction can free arrangement.Figure 12 is a kind of data communication format schematic diagram.
In sound wave wireless communications method proposed by the invention, every data that instruction transmits, according to command content and wait to transmit the data difference, data length is variable, different instructions has its corresponding data length.Such as, the delivery time signal, data comprise year, month, day, hour, min, second, and data are longer; And the transfer equipment switching signal only needs to transmit ON or OFF signal, and data are shorter.
In sound wave wireless communications method proposed by the invention, be applied in the occasions higher to security requirement such as mobile-phone payment, data communication can be adopted cryptographic algorithm, data length, seeker, device number, command code, check code is encrypted transmitted; Or to the encryption of the partial data in data length, seeker, device number, command code, check code transmission.And in the sub-electric equipment control of household electricity etc. to the security requirement occasion, all data can not encrypted, and adopt transparent mode to transmit.
In sound wave wireless communications method proposed by the invention, disposable being sent completely of instruction can not send in segmentation; Or the instruction of a long word joint number is removable is divided into a few set of segmentation data and sends in proper order, after transmitting apparatus sends set of segmentation data, wait for the affirmation signal of receiving equipment feedback, if receive that the signal of receiving equipment feedback is for receiving into function signal, then transmitting apparatus sends next set of segmentation data again, if receive the signal of receiving equipment feedback for receiving rub-out signal, the segment data that then repeats to send out last, Using such method instructs all bytes all to be sent completely up to this.
Below by reference to the accompanying drawings the specific embodiment of the present invention is illustrated; but these explanations can not be understood that to have limited scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim of the present invention basis all is protection scope of the present invention.
Claims (10)
1. the communication means of an electronic and electrical equipment, adopt sound wave frequency shift keying communication mode, it is characterized in that: represent different code elements respectively with sound wave carrier frequency different more than two or two, the sound wave that receives is decoded and/or the sound wave that sends is encoded by the sound wave telecommunication circuit, the sound wave of unidirectional reception or bidirectional transmit-receive specific coding form and characteristic frequency, carry out data communication, the frequency range of sound wave is: audio frequency and/or ultrasonic frequency.
2. code element according to claim 1, it is characterized in that: the sound wave carrier frequency that represents each code element is the frequency of sound wave of fixing; Or the sound wave carrier frequency that represents each code element can adopt different frequencies according to software control.
3. sound wave carrier frequency according to claim 1, it is characterized in that: two sound waves of different frequencies carrier frequency progressively increase/are reduced to carrier frequency f b by carrier frequency f a when carrier frequency f a switches to carrier frequency f b, and two different sound wave carrier frequency continuous gradations are switched; Or two sound waves of different frequencies carrier frequency directly switch to carrier frequency f b by carrier frequency f a when carrier frequency f a switches to carrier frequency f b.
4. the communication means of an electronic and electrical equipment adopts sound wave frequency shift keying communication mode, it is characterized in that: rearrange a code element in twos in proper order by 4 sound wave carrier frequency, the numeral among the corresponding hexadecimal 0 ~ F of each code element difference.
5. the communication means of an electronic and electrical equipment, adopt sound wave frequency shift keying communication mode, it is characterized in that: 4 sound wave carrier frequency are arranged, and each sound wave carrier frequency is as a code element, the binary number of the respectively corresponding 2bits of each code element is respectively 00,01,10,11.
6. the communication means of an electronic and electrical equipment adopts sound wave frequency shift keying communication mode, and it is characterized in that: with 2 sound wave carrier frequency, each frequency of sound wave represents binary number 0 and 1 respectively as a code element.
7. the communication means of an electronic and electrical equipment adopts sound wave frequency shift keying communication mode, it is characterized in that: disposable being sent completely of instruction can not send in segmentation; Or the instruction of a long word joint number is removable is divided into a few set of segmentation data and sends in proper order, after transmitting apparatus sends set of segmentation data, wait for the affirmation signal of receiving equipment feedback, after receiving the affirmation signal of receiving equipment feedback, transmitting apparatus sends next set of segmentation data again, and Using such method all is sent completely up to these all bytes of instruction.
8. the communication means of an electronic and electrical equipment, adopt sound wave frequency shift keying communication mode, it is characterized in that: data communication format comprises: initial synchronous code (Start Sync), data length (Datalength), seeker (Header), device number (Serial ID), command code (Payload), check code (Checksum), end mark (Stop Sync).
9. data length according to claim 8, it is characterized in that: data length is variable, different instructions has its corresponding data length.
10. the communication means of an electronic and electrical equipment adopts sound wave frequency shift keying communication mode, and it is characterized in that: cryptographic algorithm is adopted in data communication, data length, seeker, device number, command code, check code is encrypted transmitted; Or to the encryption of the partial data in data length, seeker, device number, command code, check code transmission; Or all data are not encrypted the transmission of employing transparent mode.
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| CN106448124A (en) * | 2015-08-11 | 2017-02-22 | 上海尔旁电子科技有限公司 | Sound wave remote control method, system and equipment |
| CN105700448A (en) * | 2016-01-29 | 2016-06-22 | 中国联合网络通信集团有限公司 | Remote monitoring method and remote monitoring system |
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Application publication date: 20130814 |