CN103747148B - A kind of data communications method and terminal - Google Patents
A kind of data communications method and terminal Download PDFInfo
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- CN103747148B CN103747148B CN201410040339.4A CN201410040339A CN103747148B CN 103747148 B CN103747148 B CN 103747148B CN 201410040339 A CN201410040339 A CN 201410040339A CN 103747148 B CN103747148 B CN 103747148B
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Abstract
The embodiment of the present invention provides a kind of data communications method and terminal, relates to electronic technology field, can solve how terminal realizes coded system select permeability according to the characteristic of self.The method comprises: the model obtaining terminal; Described terminal is searched in the mapping table prestored the FSK coded system corresponding with the model of terminal; Or, search request message is sent to preset service device, described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device, and receiving the response message of described preset service device transmission, described response message comprises the FSK coded system corresponding with the model of described terminal; Adopt described FSK coded system to encode to data, the data after coding are sent to information safety devices.
Description
Technical field
The present invention relates to a kind of electronic technology field, particularly relate to a kind of data communications method and terminal.
Background technology
When mobile phone and information safety devices carry out data communication, such as, mobile phone sends data to information safety devices, and mobile phone can adopt certain coded system to encode to sent data, and the data after coding are sent to information safety devices.
In prior art, mobile phone can support Multi-encoding mode usually, but mobile phone cannot realize the selection of coded system according to the performance of self.
Summary of the invention
The present invention is intended to solve how terminal realizes coded system select permeability according to the characteristic of self.
Main purpose of the present invention is to provide a kind of data communications method.
Another object of the present invention is to provide a kind of terminal.
For achieving the above object, technical scheme of the present invention is specifically achieved in that
One aspect of the present invention provides a kind of data communications method, comprising:
Obtain the model of terminal;
Described terminal is searched in the mapping table prestored the frequency shift (FS) corresponding with the model of terminal and modulates FSK coded system; Or, search request message is sent to preset service device, described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device, and receiving the response message of described preset service device transmission, described response message comprises the FSK coded system corresponding with the model of described terminal;
Adopt described FSK coded system to encode to data, wherein, in described FSK coded system, adopting M sampled point to obtain the cycle is that the sine wave of T1 carrys out presentation logic 0, and adopting N number of sampled point to obtain the cycle is that the sine wave of T2 carrys out presentation logic 1; M ≠ N, T1 ≠ T2, M and N is positive integer;
Data after coding are sent to information safety devices.
Wherein, described information safety devices comprises: intelligent cipher key equipment or possess the adapter equipment carrying out communication connection interface with described intelligent cipher key equipment.
The present invention provides a kind of terminal on the other hand, comprising:
First acquiring unit, for obtaining the model of terminal;
Second acquisition unit, FSK coded system is modulated for obtaining the frequency shift (FS) corresponding with the model of terminal, wherein, described acquiring unit comprises: search module, searches the FSK coded system corresponding with the model of terminal in the mapping table prestored in described terminal; Or, described acquiring unit comprises: sending module and receiver module, described sending module, for sending search request message to preset service device, described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device; Described receiver module, for receiving the response message that described preset service device sends, described response message comprises the FSK coded system corresponding with the model of described terminal;
Coding unit, encodes to data for adopting described FSK coded system; Wherein, in described FSK coded system, adopting M sampled point to obtain the cycle is that the sine wave of T1 carrys out presentation logic 0, and adopting N number of sampled point to obtain the cycle is that the sine wave of T2 carrys out presentation logic 1; M ≠ N, T1 ≠ T2, M and N is positive integer;
Transmitting element, for sending to information safety devices by the data after coding.
As seen from the above technical solution provided by the invention, a kind of data communications method provided by the invention and terminal, the model of this terminal self can be obtained out, search the FSK coded system corresponding with the model of this terminal in the mapping table, and use the FSK coded system found to encode to data.That is terminal before transmitting data, according to the model of self, by searching FSK coded system in the mapping table, can realize the selection of coded system, solves prior art terminal cannot realize coding mode selection problem according to the characteristic of terminal self.
The embodiment of the present invention can when terminal supports Multi-encoding mode, selects the coded system being applicable to self-characteristic, to improve the reliability and efficiency that terminal communicates with information safety devices, avoids terminal to adopt inappropriate coded system to cause the problem of communication failure.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of realization flow figure of the data communications method that Fig. 1 provides for the embodiment of the present invention 1;
The another kind of realization flow figure of the data communications method that Fig. 2 provides for the embodiment of the present invention 1;
The structural representation of a kind of terminal that Fig. 3 provides for the embodiment of the present invention 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or quantity or position.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
Embodiment 1
The embodiment of the present invention provides a kind of data communications method, and as shown in Figure 1, the method comprises:
101, terminal obtains the model of terminal;
Usually, coded system, traffic rate etc. the performance of the hardware of this terminal, software, support can be determined according to the model of terminal.
Wherein, the model of terminal, such as, can adopt the model such as IPhone5s, Samsung N7108 to represent.
Optionally, in the present embodiment, the model of described acquisition terminal can be point out user to input by the APP in terminal, and the model of the terminal that user inputs is received by this APP, or the model of several terminals is demonstrated by the APP in terminal, to point out user to select, and obtained the model of the terminal that user chooses by this APP.
Optionally, in the present embodiment, the model of described acquisition terminal can be obtained by detection by terminal.
Exemplarily, the model of sense terminals specifically can be performed by the application A PP that terminal is installed.
Such as, terminal is provided with the client end AP P of information safety devices, after this client end AP P starts, this APP can the model of sense terminals; Or after this client end AP P starts, need to send before data to information safety devices, this APP can the model of sense terminals.
102, search the frequency shift (FS) corresponding with the model of terminal in the mapping table that described terminal prestores in described terminal and modulate (Frequency-ShiftKeying, FSK) coded system;
Wherein, each self-corresponding FSK coded system of terminal of multiple different model can be preserved in above-mentioned mapping table;
It should be noted that, the FSK coded system of the preservation in above-mentioned mapping table, for carrying out the coded system of data communication between the most applicable terminal that goes out according to the characteristic test of terminal and information safety devices.After terminal adopts FSK coded system corresponding with self in this mapping table to encode to data and sends to information safety devices, this information safety devices can to the decoding data after coding, thus, terminal by choosing the FSK coded system corresponding with self from this mapping table, and the coded system using this to select, terminal can be avoided to adopt inappropriate coded system to cause the problem of communication failure, thus improve the reliability that communicates with information safety devices of terminal and efficiency.
Exemplary, such as, above-mentioned mapping table can adopt the form as following table one to realize:
Table one
| The model of terminal | Corresponding FSK coded system |
| In emerging V9 | FSK-4-8 |
| Huawei P6 | FSK-24-36 |
| …… | …… |
Above-mentioned FSK-4-8 can be used for representing: when the terminal of model emerging V9 in being sends data to information safety devices, in the FSK coded system that described terminal adopts, adopting 4 sampled points to obtain the cycles is that the sine wave of T1 carrys out presentation logic 0, adopts 8 sampled points acquisition cycles to be that the sine wave of T2 carrys out presentation logic 1.
About the more detailed description of FSK coded system see the record in step 103 below.
It should be noted that, in the present embodiment, above-mentioned mapping table is stored in advance in terminal, and following several mode can be adopted to realize:
Such as, manually above-mentioned mapping table is stored in advance in the designated storage location in terminal by technical staff or user;
Or, and for example, in the installation file of client end AP P, carry above-mentioned mapping table, in terminal mount message safety means client end AP P after, by client end AP P above-mentioned mapping table is stored in the designated storage location in terminal;
Or, for another example, in terminal mount message safety means client end AP P after, download above-mentioned mapping table by client end AP P to the request of preset service device, and above-mentioned mapping table be stored in the designated storage location in terminal.
Optionally, in the present embodiment, when realizing searching the FSK coded system corresponding with terminal, as shown in Figure 2, this step can also replace with as under type realizes:
102A, described terminal send search request message to preset service device, and described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device;
This preset service device can be provider's official website server of the client end AP P of information safety devices, in this official website server, preserve mapping table, and the realization of this mapping table can see above-mentioned table one.
After described preset service device receives described search request message, in the mapping table that described preset service device prestores, search the FSK coded system corresponding with the model of terminal; Described preset service device sends response message to described terminal, and described response message comprises the FSK coded system corresponding with described terminal;
102B, described terminal receive the response message that described preset service device sends, and described response message comprises the FSK coded system corresponding with the model of described terminal.
In above-mentioned implementation, mapping table is preserved by preset service device, terminal is by sending search request message to described preset service device, the FSK coded system corresponding with the model of terminal is searched in the mapping table prestored on described preset service device with request, and receive the FSK coded system corresponding with described terminal of described preset service device transmission, the memory data output of terminal can be reduced, that is terminal does not need to prestore above-mentioned mapping table, when needing to obtain the FSK coded system corresponding with described terminal, send search request to preset service device and can receive the FSK coded system corresponding with described terminal.
103, described FSK coded system is adopted to encode to data;
Wherein, in described FSK coded system, adopting M sampled point to obtain the cycle is that the sine wave of T1 carrys out presentation logic 0, and adopting N number of sampled point to obtain the cycle is that the sine wave of T2 carrys out presentation logic 1; M ≠ N, T1 ≠ T2.
Below in conjunction with some examples, described FSK coded system is described.
In the present embodiment, described FSK coded system specifically can be expressed as FSK-M-N;
Such as, FSK-4-8 represents that terminal is when encoding to data, and adopting 4 sampled points to obtain the cycles is that the sine wave of T1 carrys out presentation logic 0, adopts 8 sampled points acquisition cycles to be that the sine wave of T2 carrys out presentation logic 1;
And for example, FSK-24-36 represents that terminal is when encoding to data, and adopting 24 sampled points to obtain the cycles is that the sine wave of T1 carrys out presentation logic 0, adopts 36 sampled points acquisition cycles to be that the sine wave of T2 carrys out presentation logic 1.
Usually, when sampling to data-signal, the sample frequency of use can be such as 44.1KHz, 48KHz, 10KHz, 8KHz etc.
Take sample frequency as 48KHz be example, in FSK-4-8 coded system, 4 sampled points of sampling can obtain the sine wave that frequency is 48/4=12KHz after sampling to data-signal, the cycle T 1 of this waveform is 1/12KHz, and this cycle T 1 is that the sine wave of 1/12KHz is used for presentation logic 0;
After adopting 8 sampled points to sample to data-signal, can obtain the sine wave that frequency is 48/8=6KHz, the cycle T 2 of this waveform is 1/6KHz, and this cycle T 2 is that the sine wave of 1/6KHz is used for presentation logic 1.
104, the data after coding are sent to information safety devices.
Such as, during terminal employing FSK-4-8 coded system, the sine wave being T1 to the information safety devices cycle sent by adopting M sampled point to obtain carrys out transmission logic 0, carrys out transmission logic 1 to information safety devices transmission by the sine wave that the cycle adopting N number of sampled point to obtain is T2.
During practical application, the cycle T of above-mentioned sine wave can be determined according to the number of sample frequency and sampled point, specifically see the record of pertinent samples frequency, sampled point, sine wave period in above-mentioned steps 103.
The terminal provided in the present embodiment can for possessing the mobile phone, panel computer, MP3/MP4, intelligent watch, intelligent glasses, PC etc. of USB interface or audio interface.
The above-mentioned information safety devices provided in the present embodiment comprises: intelligent cipher key equipment, possess the adapter equipment etc. carrying out communication connection interface with described intelligent cipher key equipment.
This intelligent cipher key equipment can comprise the USBKEY etc. of dynamic token OTP, USBKEY, support audio interface/blue tooth interface/NFC interface, and this is not restricted.
The interface that this intelligent cipher key equipment and adapter equipment carry out communicating to connect can be USB interface/audio interface/blue tooth interface/NFC interface etc., and this is not restricted.
In the embodiment of the present invention, terminal can obtain out the model of this terminal self, searches the FSK coded system corresponding with the model of this terminal in the mapping table, and uses the FSK coded system found to encode to data.That is terminal before transmitting data, according to the model of self, by searching FSK coded system in the mapping table, can realize the selection of coded system, solves prior art terminal cannot realize coding mode selection problem according to the characteristic of terminal self.
The embodiment of the present invention can when terminal supports Multi-encoding mode, selects the coded system being applicable to self-characteristic, to improve the reliability and efficiency that terminal communicates with information safety devices, avoids terminal to adopt inappropriate coded system to cause the problem of communication failure.
Embodiment 2
The embodiment of the present invention provides a kind of terminal, and this terminal can for possessing the mobile phone, panel computer, MP3/MP4, intelligent watch, intelligent glasses, PC etc. of USB interface or audio interface.
As shown in Figure 3, this terminal comprises: the first acquiring unit 31, second acquisition unit 32, coding unit 33 and transmitting element 34.
First acquiring unit 31, for obtaining the model of terminal;
Second acquisition unit 32, for obtaining the FSK coded system corresponding with the model of terminal, wherein, described acquiring unit 32 comprises: search module 321, searches the FSK coded system corresponding with the model of terminal in the mapping table prestored in described terminal; Or, described second acquisition unit 32 comprises: sending module 322 and receiver module 323, described sending module 322, for sending search request message to preset service device, described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device; Described receiver module 323, for receiving the response message that described preset service device sends, described response message comprises the FSK coded system corresponding with the model of described terminal;
Coding unit 33, encodes to data for adopting described FSK coded system; Wherein, in described FSK coded system, adopting M sampled point to obtain the cycle is that the sine wave of T1 carrys out presentation logic 0, and adopting N number of sampled point to obtain the cycle is that the sine wave of T2 carrys out presentation logic 1; M ≠ N, T1 ≠ T2, M and N is positive integer;
Transmitting element 34, for sending to information safety devices by the data after coding.
Further, when above-mentioned first acquiring unit 31 obtains the model of terminal, coded system, traffic rate etc. the performance of the hardware of this terminal, software, support can be determined according to the model of terminal.Wherein, the model of terminal, such as, can adopt the model such as IPhone5s, Samsung N7108 to represent.
Further, described second acquisition unit 32 comprises: search module 321, searches the FSK coded system corresponding with the model of terminal in the mapping table prestored in described terminal;
The each self-corresponding FSK coded system of terminal of multiple different model can be preserved, about the description of mapping table can specifically see the relevant record in step 102 in above-described embodiment one in above-mentioned mapping table;
It should be noted that, in the present embodiment, above-mentioned mapping table is stored in advance in terminal, and following several mode can be adopted to realize:
Such as, manually above-mentioned mapping table is stored in advance in the designated storage location in terminal by technical staff;
Or, and for example, in the installation file of client end AP P, carry above-mentioned mapping table, in terminal mount message safety means client end AP P after, by client end AP P above-mentioned mapping table is stored in the designated storage location in terminal;
Or, for another example, in terminal mount message safety means client end AP P after, download above-mentioned mapping table by client end AP P to the request of preset service device, and above-mentioned mapping table be stored in the designated storage location in terminal.
Optionally, or, described second acquisition unit 32 comprises: sending module 322 and receiver module 323, described sending module 322, for sending search request message to preset service device, described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device; Described receiver module 323, for receiving the response message that described preset service device sends, described response message comprises the FSK coded system corresponding with described terminal;
This preset service device can be provider's official website server of the client end AP P of information safety devices, in this official website server, preserve mapping table, and the realization of this mapping table can see the associated description of table one in the step 102 of above-described embodiment one.
Further, when above-mentioned coding unit 33 adopts described FSK coded system to encode to data, in described FSK coded system, adopting M sampled point to obtain the cycle is that the sine wave of T1 carrys out presentation logic 0, and adopting N number of sampled point to obtain the cycle is that the sine wave of T2 carrys out presentation logic 1; M ≠ N, T1 ≠ T2, M and N is positive integer;
Below in conjunction with some examples, described FSK coded system is described.
In the present embodiment, described FSK coded system specifically can be expressed as FSK-M-N;
Such as, FSK-4-8 represents that terminal is when encoding to data, and adopting 4 sampled points to obtain the cycles is that the sine wave of T1 carrys out presentation logic 0, adopts 8 sampled points acquisition cycles to be that the sine wave of T2 carrys out presentation logic 1;
And for example, FSK-24-36 represents that terminal is when encoding to data, and adopting 24 sampled points to obtain the cycles is that the sine wave of T1 carrys out presentation logic 0, adopts 36 sampled points acquisition cycles to be that the sine wave of T2 carrys out presentation logic 1.
Usually, terminal is when sampling to data-signal, and the sample frequency of use can be such as 44.1KHz, 48KHz, 10KHz, 8KHz etc.
Take sample frequency as 48KHz be example, in FSK-4-8 coded system, 4 sampled points of sampling can obtain the sine wave that frequency is 48/4=12KHz after sampling to data-signal, the cycle T 1 of this waveform is 1/12KHz, and this cycle T 1 is that the sine wave of 1/12KHz is used for presentation logic 0;
After adopting 8 sampled points to sample to data-signal, can obtain the sine wave that frequency is 48/8=6KHz, the cycle T 2 of this waveform is 1/6KHz, and this cycle T 2 is that the sine wave of 1/6KHz is used for presentation logic 1.
The terminal provided in the present embodiment can for possessing the mobile phone, panel computer, MP3/MP4, intelligent watch, intelligent glasses, PC etc. of USB interface or audio interface.
The above-mentioned information safety devices provided in the present embodiment comprises: intelligent cipher key equipment, possess the adapter equipment etc. carrying out communication connection interface with described intelligent cipher key equipment.
This intelligent cipher key equipment can comprise the USBKEY etc. of dynamic token OTP, USBKEY, support audio interface/blue tooth interface/NFC interface, and this is not restricted.
The interface that this intelligent cipher key equipment and adapter equipment carry out communicating to connect can be USB interface/audio interface/blue tooth interface/NFC interface etc., and this is not restricted.
In the embodiment of the present invention, terminal can obtain out the model of this terminal self, searches the FSK coded system corresponding with the model of this terminal in the mapping table, and uses the FSK coded system found to encode to data.That is terminal before transmitting data, according to the model of self, by searching FSK coded system in the mapping table, can realize the selection of coded system, solves prior art terminal cannot realize coding mode selection problem according to the characteristic of terminal self.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.Scope of the present invention is by claims and equivalency thereof.
Claims (3)
1. a data communications method, is characterized in that, comprising:
Obtain the model of terminal;
Described terminal is searched in the mapping table prestored the frequency shift (FS) corresponding with the model of terminal and modulates FSK coded system; Or, search request message is sent to preset service device, described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device, and receiving the response message of described preset service device transmission, described response message comprises the FSK coded system corresponding with the model of described terminal;
Described FSK coded system is adopted to encode to data, wherein, in described FSK coded system, adopting M sampled point to obtain the cycle is that the sine wave of T1 carrys out presentation logic 0, and adopting N number of sampled point to obtain the cycle is that the sine wave of T2 carrys out presentation logic 1, M ≠ N, T1 ≠ T2, M and N are positive integer;
Data after coding are sent to information safety devices.
2. method according to claim 1, is characterized in that, described information safety devices comprises: intelligent cipher key equipment or possess the adapter equipment carrying out communication connection interface with described intelligent cipher key equipment.
3. a terminal, is characterized in that, comprising:
First acquiring unit, for obtaining the model of terminal;
Second acquisition unit, FSK coded system is modulated for obtaining the frequency shift (FS) corresponding with the model of terminal, wherein, described acquiring unit comprises: search module, searches the FSK coded system corresponding with the model of terminal in the mapping table prestored in described terminal; Or, described acquiring unit comprises: sending module and receiver module, described sending module, for sending search request message to preset service device, described search request message comprises the model of described terminal, for asking to search the FSK coded system corresponding with the model of terminal in the mapping table prestored on described preset service device; Described receiver module, for receiving the response message that described preset service device sends, described response message comprises the FSK coded system corresponding with the model of described terminal;
Coding unit, encodes to data for adopting described FSK coded system; Wherein, in described FSK coded system, adopting M sampled point to obtain the cycle is that the sine wave of T1 carrys out presentation logic 0, and adopting N number of sampled point to obtain the cycle is that the sine wave of T2 carrys out presentation logic 1, M ≠ N, and T1 ≠ T2, M and N are positive integer;
Transmitting element, for sending to information safety devices by the data after coding.
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