CN106143359B - Signal transmission method and the communication system for using its method - Google Patents
Signal transmission method and the communication system for using its method Download PDFInfo
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- CN106143359B CN106143359B CN201510177788.8A CN201510177788A CN106143359B CN 106143359 B CN106143359 B CN 106143359B CN 201510177788 A CN201510177788 A CN 201510177788A CN 106143359 B CN106143359 B CN 106143359B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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Abstract
A kind of signal transmission method comprising following steps.Firstly, receiving square-wave signal passes through output signal caused by high-pass filter.Then, output signal is sampled with interval time, and generates a plurality of sampling values.Thereafter, a plurality of sampling values are compared with an at least threshold value and generate a plurality of comparison results.Finally, recognizing the coding pattern of corresponding output signal according to the comparison result.
Description
Technical field
The present invention relates to a kind of signal transmission methods, especially with regard to a kind of to resist wired paths environment noise
Signal transmission method and the communication system for using the signal transmission method.
Background technique
In general, there are many interference sources, such as engine, rain brush and motor etc. in the environment of automobile-used communication.Cause
This, manufacturer need to consider the reliability of the communication quality under the interference of big noise when designing communication system for automobile.Relatively often at present
The testing standard of the automobile-used communication reliability of the test used, for example, IEC 62132-4Direct RF Power Injection
Method or IEC 62215-3Non-Synchronous Transient Injection Method etc., characteristic all utilizes
It is tested through large amplitude and powerful common mode signal (common mode signal).However, in lane testing
In the process, even during noise interference, communication system cannot also have error of transmission, could at last one it is reliable logical
News system.
More specifically, communication device for vehicle can be switched to battery saving mode in no progress data transmission, and wait
The communication device for vehicle for waking up signal (wake up signal) to wake battery saving mode is transmitted to other communication device for vehicle.?
That is the wake-up mechanism of communication device for vehicle cannot similarly be influenced by noise and accidentally wake up or can not wake up, uses and keep away
Exempt from the safety on the device or element operation that influence to connect with communication device for vehicle.
Summary of the invention
The embodiment of the present invention provides a kind of signal transmission method comprising following steps: receiving and passes through height by square-wave signal
Output signal caused by bandpass filter；Output signal is sampled with interval time, and generates a plurality of sampling values；It will answer
Several sampling values are compared with an at least threshold value generates a plurality of comparison results；And it according to a plurality of comparison results, distinguishes
Know the coding pattern of corresponding output signal.
The embodiment of the present invention provides a kind of communication system comprising the first communication device and the second communication device.First is logical
News device includes that signal generates mould group and the first transmitting-receiving mould group.Second communication device includes that the second transmitting-receiving mould group and judgement are single
Member.Signal generates mould group to generate square-wave signal.First transmitting-receiving mould group is to transmit output signal.Common mode filtering unit to
Filter out the output signal of the high-frequency components of square-wave signal.Second transmitting-receiving mould group is to receive output signal.Judging unit to
A plurality of sampling values are sampled and generated to output signal with interval time, by a plurality of sampling values and an at least threshold value into
Row relatively generates a plurality of comparison results, and corresponds to the coding pattern of output signal according to the identification of a plurality of comparison results.
The embodiment of the present invention provides another communication system comprising the first communication device and the second communication device.First
Communication device includes that signal generates mould group and the first transmitting-receiving mould group.Second communication device includes the second transmitting-receiving mould group, and second
Receiving and dispatching mould group includes judging unit.Signal generates mould group to generate square-wave signal.First transmitting-receiving mould group is to transmit output news
Number.The output signal of high-frequency components of the common mode filtering unit to filter out square-wave signal.Second transmitting-receiving mould group is defeated to receive
Signal out.Judging unit takes to be sampled and generate a plurality of sampling values to output signal with interval time by a plurality of
Sample value is compared with an at least threshold value generates a plurality of comparison results, and according to the identification of a plurality of comparison results corresponding to defeated
The coding pattern of signal out.
In summary, the signal transmission method and communication device that the embodiment of the present invention proposes can utilize existing circuit
The characteristic of high-pass filter in framework designs the output signal of large amplitude, to prevent noise from interfering.Furthermore the present invention is implemented
Example more generates mould group control output signal through signal and reaches encoding efficiency in the time length of different voltages.In addition, above-mentioned output
If signal is as waking up signal, by can be to avoid caused by because of noise the problem of can not correctly waking up transmitting-receiving mould group.
Detailed description of the invention
Figure 1A is the block diagram of the communication device of the embodiment of the present invention.
Figure 1B is the circuit diagram of the high-pass filter of an embodiment.
Fig. 1 C is the block diagram of the communication device of another embodiment of the present invention.
Fig. 2A is the input signal of the embodiment of the present invention and the schematic diagram of output signal.
Fig. 2 B is the input signal of another embodiment of the present invention and the schematic diagram of output signal.
Fig. 3 A is the input signal of yet another embodiment of the invention and the schematic diagram of output signal.
Fig. 3 B is the schematic diagram of the input signal and output signal of a more embodiment of the invention.
Fig. 4 is the flow chart of the signal transmission method of the embodiment of the present invention.
Symbol description
1: communication device
11: transmitting-receiving mould group
12: common mode filtering unit
13: signal generates mould group
14: judging unit
120: high-pass filter
Vin(t)、Vout(t): voltage
R: resistance
C: capacitor
VI1~VI3: the voltage of input signal
VO1~VO4: the voltage of output signal
VT1~VT4: threshold value
VIint: initial voltage
T1~T3: time interval
TS: interval time
S101~S104: method and step process
Specific embodiment
It should be understood that although various voltage signals may be described using term first, second, third, etc. herein, this
Deng should not be limited by these terms.These terms are to distinguish a voltage signal and another voltage signal.Therefore, it is discussed herein below
First voltage signal can be described as second voltage signal without departing from the teaching of concept of the present invention.As used herein, term "
Or " depending on actual conditions it may include the associated all combinations for listing any one of project or more persons.
In wired paths transmission, it can all completely cut off the common-mode DC voltage of chip plus capacitor in signal output stage, with
Common mode current is avoided to drain to external network circuit.However, in order to protect communication environment usually using common mode filtering inductor
(common mode choke) inhibits common mode noise, and further adds common-mode filter (common mode
Filter) filtering noise information.In embodiments of the present invention, common-mode filter can also promote the amplitude of output signal, so that output is interrogated
Number more it is able to bear the interference of wired paths transmission.Therefore, the embodiment of the present invention proposes that a kind of electronic circuit that need not change amplifies
Device (amplifier) can make output signal have large amplitude, use and promote output signal to the interference in wired paths transmission
Tolerances, it is subsequent to be further described in detail.
A refering to fig. 1, Figure 1A are the block diagrams of the communication device of the embodiment of the present invention.Communication device 1 includes transmitting-receiving mould group
11, signal generates mould group 13 and judging unit 14.Receiving and dispatching mould group 11 includes common mode filtering unit 12.Signal generates 13 coupling of mould group
It is connected to transmitting-receiving mould group 11, judging unit 14 is coupled to transmitting-receiving mould group 11.
In embodiments of the present invention, communication device 1 is using automobile-used wire communication device as implementation, to provide locomotive
Carry out data exchange, however, the embodiment of the present invention not with it is automobile-used communication as limitation.
Receiving and dispatching mould group 11 includes logic appropriate, circuit and/or coding, to transmit output signal to another communication device
1, or receive the output signal exported via another communication device 1.It more carefully says, each communication device 1 is through transmitting-receiving mould group 11
Document signal is transmitted in a manner of wired paths.
In transmitting-receiving mould group 11, output signal of the common mode filtering unit 12 to generate high frequency, or receive another communication dress
Set the output signal of 1 transmission.In embodiments of the present invention, common mode filtering unit 12 is with high-pass filter (high pass
Filter, HPF) as embodiment.Common mode filtering unit 12 passes through high-frequency signals and weakens frequency lower than cutoff frequency
The filter that signal passes through.In other words, output signal be input signal (such as receive from signal generate mould group 13 generate
Signal) by high pass filter filters go out high-frequency components.
B, Figure 1B are the circuit diagrams of the high-pass filter of an embodiment referring to Fig.1 together.According to Ke Xihefu current law
The characteristic of (Kirchhoff's Current Law, KCL) and capacitor C, the voltage V in the high-pass filter 120 of Figure 1Bout
(t) as follows:
Vout(t)=I (t) R (1)
Qc(t)=C [Vin(t)-Vout(t)] (2)
Wherein, QcIt (t) is the quantity of electric charge in capacitor C, and I (t) is the electric current for flowing through resistance R.By mathematical expression (1), (2)
It is arranged with (3), following mathematical expression (4) can be obtained:
When dt is enough small (that is, level off to zero), continuous voltage signal can be considered as to discrete voltage signal, it is as follows
Mathematical expression (5):
The person of connecing rearranges mathematical expression (5) at recursive mathematical expression (6):
According to above-mentioned mathematical expression (6), in the case where receiving and dispatching the progress signal transmitting of mould group 11, when common mode filtering unit 12 connects
The input signal received is periodic square wave signal, and the periodic square wave signal is by negative voltage (negative voltage)
When variation is positive voltage (positive voltage), the positive output voltage for the output signal that high-pass filter 120 exports is week
Twice of the amplitude of phase property square-wave signal；On the contrary, the periodic square wave signal received when common mode filtering unit 12 is by positive electricity
When buckling turns to negative voltage, the negative output voltage for the output signal that high-pass filter 120 exports is the vibration of periodic square wave signal
Twice of width.In addition, the periodic square wave signal persistently received maintains when common mode filtering unit 12 is after generating positive and negative voltage changes
Negative voltage or when maintaining positive voltage, the positive output voltage or negative output voltage of output signal then gradually level off to zero with writing the time.
It is the input signal of the embodiment of the present invention and the schematic diagram of output signal please refer to Fig. 2A, Fig. 2A.Citing
For, when common mode filtering unit 12 is received such as positive voltage VI1And negative voltage VI2It is formed by periodic square wave signal, and
At the beginning by the positive voltage VI of the voltage change of -0.5V to positive 0.5V1When, it can be seen that positive output voltage VO1For the voltage of+1V.
That is, the positive output voltage VO for the output signal that common mode filtering unit 12 generates1For the amplitude of periodic square wave signal
Twice of 0.5V.On the contrary, when common mode filtering unit 12 receives the positive voltage VI by+0.5V1It is changed to the positive voltage of -0.5V
VI2When, it can be seen that negative output voltage VO2For the voltage of -1V.On the other hand, in periodic square wave signal in time interval T1It is interior
Maintain positive voltage VI1And in time interval T2Interior maintenance negative voltage VI2When, by the output signal of common mode filtering unit 12
Voltage respectively can be by positive output voltage VO1With negative output voltage VO20V gradually level off to until a square-wave signal lower period
Generating positive and negative voltage variation.
In an alternative embodiment of the invention, the signal received when common mode filtering unit 12 is aperiodicity input signal,
And this aperiodic input signal, when by first voltage variation being second voltage, the first output voltage of output signal is second voltage
Subtract first voltage；When common mode filtering unit 12, which receives aperiodicity input signal, maintains second voltage, the of output signal
One output voltage gradually levels off to zero.
Fig. 2 B is please referred to, Fig. 2 B is the input signal of another embodiment of the present invention and the schematic diagram of output signal.Citing
For, when common mode filtering unit 12 receives such as by the first input voltage VI1, the second input voltage VI2With third input voltage
VI3It is formed by aperiodicity input signal, and at the beginning by the first input voltage of the voltage change of -0.5V to+0.5V
VI1When, it can be seen that the first output voltage VO1For the voltage of+1V.That is, this aperiodic input signal is by initial voltage
VIint(- 0.5V) variation is the first input voltage VI1When (positive voltage of+0.5V), the first output voltage VO of output signal1For
First voltage VI1Subtract initial voltage VIintVoltage difference.Furthermore when common mode filtering unit 12 is received by the first input voltage
VI1(+0.5V) is changed to the second input voltage VI2When (+1V), the second output voltage VO of output signal2For the second input voltage
VI2The input voltage VI that subtracts the first1Voltage difference, that is, show+0.5V such as Fig. 2 B.Similarly, when common mode filtering unit 12 connects
It receives by the second input voltage VI2(+1V) is changed to third input voltage VI3When (- 1V), the third output voltage of output signal
VO3For third input voltage VI3The input voltage VI that subtracts the second2Voltage difference, that is, show -2V such as Fig. 2 B.Subsequent voltage
Variation and so on, repeats no more in this.
It includes logic appropriate, circuit and/or coding that signal, which generates mould group 13, to generate input signal to transmitting-receiving mould group
11, wherein signal generates mould group 13 and controls voltage and the duration of input signal to generate coding pattern (signal
), and the document signal to generate general information signal or coding in the operational mode pattern.In the embodiment of the present invention
In, coding pattern may be, for example, the wake-up signal to wake up the communication device 1 for entering battery saving mode, and using makes communication device 1
Operating mode (for example, other receipts of starting transmitting-receiving mould group 11 are entered by battery saving mode (for example, lesser mode of power consumption)
The function of Power Generation Road).More carefully to say, signal generates mould group 13 can control input signal according to the setting of user, such as
Control the duty cycle (duty cycle) of above-mentioned periodic square wave signal, that is, control positive voltage or negative voltage it is lasting when
Between with generate needed for coding pattern.
Please refer to Fig. 3 A, Fig. 3 A is the input signal of yet another embodiment of the invention and the schematic diagram of output signal.
For example, the positive voltage VI of periodic square wave signal in figure 3 a1With negative voltage VI2Time interval T1With T2Such as divide
It Wei not 10 milliseconds (ms) and 20 milliseconds.It therefore, also can be with 10 milliseconds and 20 by the output signal of common mode filtering unit 12
Millisecond generates the transformation of generating positive and negative voltage.
In an alternative embodiment of the invention, signal, which generates mould group 13, can control input signal according to the setting of user,
The voltage of above-mentioned aperiodicity input signal and the duration of different voltages are controlled to generate required coding pattern.Please
It is the schematic diagram of the input signal and output signal of a more embodiment of the invention refering to Fig. 3 B, Fig. 3 B simultaneously.For example, exist
First input voltage VI of the aperiodicity square-wave signal in Fig. 3 B1, the second input voltage VI2And third input voltage VI3's
Time interval T1、T2With T3It such as is respectively 20 milliseconds, 10 milliseconds and 20 milliseconds.Therefore, by the defeated of common mode filtering unit 12
Signal can generate the transformation of different voltages also out with 20 milliseconds and 10 milliseconds.It is worth noting that, in other embodiments, news
Number generate mould group 13 also can in the operational mode to general information news encode, the present invention not with to coding pattern control
System coding is as limitation.
In addition, the embodiment of the present invention is only with 10,20 milliseconds as explanation, those skilled in the art should be appreciated that can also
Different time scales are changed, and the present invention is not with time interval T1、T2With T3Length as limitation.Therefore, of the invention
Embodiment is through the complexity (voltage and duration) encoded, further to confirm this output as communication device 1
Signal is the foundation for waking up signal or noise of user's setting.Such as receive the week of 10 milliseconds of positive voltage with 20 milliseconds of negative voltage
Phase property square-wave signal three times, then confirms output signal to wake up signal.
Judging unit 14 includes logic appropriate, circuit and/or coding, to interval time (time interval)
The output signal for receiving another transmission of communication device 1 is sampled and generates a plurality of sampling values.Further, judge list
A plurality of sampling values are compared by member 14 with an at least threshold value, to generate comparison result.It is worth noting that, at least one
Threshold value can be set according to user according to practical application or demand, to as the foundation for judging sampling value.Then, judging unit
14 pick out the coding pattern of the output signal corresponding to the transmission of another communication device 1 according to comparison result.Furthermore, it is understood that sentencing
Disconnected unit 14 is according to the size of the comparison result cycle square wave signal of Fig. 2 A, Fig. 3 A the case where (such as), comparison result
The combination of the time span aperiodic input signal of Fig. 2 B, Fig. 3 B the case where (such as) between Different Results or both
To judge to correspond to whether the output signal that another communication device 1 transmits is corresponding to the coding pattern or noise for waking up signal.
When judging unit 14 judges the output signal that another communication device 1 transmits to wake up signal, mould group 11 will be further received and dispatched
Other elements circuit wakes up, and makes to receive and dispatch mould group 11 into operating mode and starts the transmission of progress document signal.
In addition, Fig. 1 C is the block diagram of the communication device of another embodiment of the present invention further referring to Fig. 1 C.Fig. 1 C's
Embodiment and the embodiment difference of Figure 1A are that judging unit 14 also may be disposed within transmitting-receiving mould group 11.In transmitting-receiving mould group 11
In, judging unit 14 is coupled to the other elements circuit of transmitting-receiving mould group 11, such as common mode filtering unit.It more carefully says, judges
Unit 14 can continue to receive the output signal of another communication device 1, and when judging unit 14 is judged as and wakes up signal, into
One step wakes up the other elements circuit for receiving and dispatching mould group 11, makes to receive and dispatch the biography that mould group 11 carries out document signal into operating mode
It is defeated.It is worth noting that, transmitting-receiving mould group 11 enter operating mode after, received document signal still via judging unit 14 again
Output is to common mode filtering unit 12 to carry out subsequent action.In embodiments of the present invention, judging unit 14 also may include relevant
Decoding circuit or formula, to be directly decoded to document signal after the coding received.
Again refering to Fig. 2A or 3A.For example, judging unit 14 samples out positive output voltage VO1Or negative output voltage VO2
When, judging unit 14 is by the positive output voltage VO of sampling1Or negative output voltage VO2With threshold value VT1With VT2It is compared, when taking
The positive output voltage VO of sample1Greater than threshold value VT1When, then it is judged as numerical value 1；As the negative output voltage VO of sampling2Less than threshold value
VT2When, then it is judged as numerical value -1；And the voltage of the output signal of other samplings can then be judged unit 14 and be judged as numerical value 0.
In Fig. 2A, if in time interval T1And T2In, with interval time Ts20 times are sampled to output signal, Fig. 2A
Output signal can be judged unit 14 and sequentially judge 2 numerical value+1,8 numerical value, 0,2 numerical value -1 and 8 numerical value 0, that is,
Share 2 numerical value+1,16 numerical value 0 and 2 time numerical value -1.In Fig. 3 A, if in time interval T1、T2, with interval time TsTo defeated
Signal is sampled 30 times out, the output signal of Fig. 2A can be judged unit 14 sequentially judge 2 numerical value+1,8 numerical value 0,
2 numerical value -1 and 18 numerical value 0, that is, share 2 numerical value+1,26 numerical value 0 and 2 time numerical value -1.Therefore, if user is with this
Number regular (such as sequence or total number ratio for sampling each numerical value appearance in number of different numerical value appearance) is as default volume
When code pattern, then received communication device 1 then judges out the coding pattern for corresponding to this output signal, and corresponding starting or execution
Relevant program in communication device 1.
Again refering to Fig. 2 B or 3B.Similarly, judging unit 14 samples out the first output voltage VO1, the second output voltage VO2、
Third output voltage VO3And the 4th output voltage VO4When, judging unit 14 is by above-mentioned output voltage VO1、VO2、VO3And VO4
With threshold value VT1、VT2、VT3With VT4It is compared.First output voltage VO1Greater than (or being equal to) threshold value VT1And it is less than door
Threshold value VT3, then it is judged as numerical value+1；Second output voltage VO2Less than threshold value VT1And it is greater than threshold value VT2, then it is judged as
Numerical value 0；Third output voltage VO3Less than (or being equal to) threshold value VT4, then it is judged as numerical value -2；4th output voltage VO4It is greater than
(or being equal to) threshold value VT3, then it is judged as numerical value+2.It is different that more more further can be arranged according to user in communication device 1
Threshold value VT1、VT2、VT3With VT4, with numerical value+2 ,+1,0, -1, -2 as the comparison result of the sampling value of output signal, and root
Judge whether comparison result corresponds to pre-arranged code pattern according to the number rule of each comparison result.It is worth noting that, ability
Domain, which has usual skill, should be appreciated that the present invention not with the number rule of the numerical value of threshold value or numerical value as limitation.
Then, be please refer to Figure 1A and Fig. 4, Fig. 4 the embodiment of the present invention signal transmission method flow chart.In step
In rapid S101, transmitting-receiving mould group 11 receives the output signal of the high frequency of another communication device.It more carefully says, transmitting-receiving mould group 11 receives
The high frequency that common mode filtering unit 12 (for example, high-pass filter) is filtered out is passed through by a square-wave signal in another communication device
Partly (that is, output signal of high frequency).
Then, in step s 102,14 pairs of judging unit transmitting-receiving mould groups 11 receive the output signal of high frequency with interval time
It is sampled, and generates a plurality of sampling values.It is again that the input signal of the embodiment of the present invention and output are interrogated refering to Fig. 2A, Fig. 2A
Number schematic diagram.Interval time T as shown in Figure 3AS, judging unit 14 to output signal be sampled obtain positive output voltage
VO1、VO3With negative output voltage VO2Sampling value.
In step s 103, judging unit 14 is by the sampling value of output signal and threshold value VT1With VT2It is compared, will answer
Several sampling values are distinguished with numerical value+1,0 or -1.However, should be appreciated that in those skilled in the art also can be according to using
More threshold values are arranged in the demand of person, are distinguished with the section of 5 ranks, 7 ranks, the present invention is not with the setting number of threshold value
Or numerical intervals are as limitation.
In step S104, judging unit 14 is according to the sampling value of step S103 compared with threshold value.Calculate each number
The number in value section corresponds to the coding pattern of this output signal to recognize.Citing as the aforementioned, if judging unit 14 is sampled
20 times, the output signal of Fig. 2A can be judged unit 14 and sequentially judge about 2 numerical value+1,8 numerical value, 0,2 numerical value -1 and 8
Secondary numerical value 0, that is, share 2 numerical value+1,16 numerical value 0 and 2 time numerical value -1.Therefore, if user with this number rule as
When pre-arranged code pattern, then received communication device 1 then judges out this coding pattern, and corresponds to starting or execute relevant journey
Sequence.
In step S104, judging unit 14 is in addition to number rule can be used to pick out the coding pattern of corresponding output signal
Except, it more can be through the complexity (voltage and duration) of coding, to confirm that this output signal is user's setting
Wake up signal or only in wired paths noise erroneous judgement.In other words, judging unit 14 is through calculated each numerical value
The positive output voltage VO of output signal is sequentially detected in appearance1To the negative output voltage VO of output signal2The time span of preceding maintenance
And/or the negative output voltage VO of detecting output signal2To the positive output voltage VO of output signal3The time span of preceding maintenance.
In summary, signal transmission method and communication device that the embodiment of the present invention proposes can utilize existing electricity
The characteristic of high-pass filter designs the output signal of large amplitude in the framework of road, to prevent noise from interfering.Furthermore the present invention is implemented
Example more generates mould group control output signal through signal and reaches encoding efficiency in the time length of different voltages.In addition, above-mentioned output
If signal is as waking up signal, by can be to avoid caused by because of noise the problem of can not correctly waking up transmitting-receiving mould group.
The above, optimal specific embodiment only of the invention, only this feature of the invention is not limited thereto, any
Be familiar with this those skilled in the art within the field of the present invention, can think easily and changes or modifications, can all cover in the special of following this case
Sharp range.
Claims (10)
1. a kind of signal transmission method, comprising:
It receives a square-wave signal and passes through an output signal caused by a high-pass filter；
The output signal is sampled with an interval time, and generates a plurality of sampling values；
A plurality of sampling values are compared with an at least threshold value to generate a plurality of comparison results；Wherein when this is a plurality of
When sampling value one of them is greater than first threshold value in an at least threshold value, judge the corresponding comparison result for one the
One value；When a plurality of sampling value one of them are less than second threshold value in an at least threshold value, the correspondence is judged
Comparison result be a second value；And
According to a plurality of comparison results, a coding pattern of the corresponding output signal is recognized.
2. signal transmission method according to claim 1, wherein when a plurality of sampling value one of them between this first
When between threshold value and second threshold value, judge the corresponding comparison result for a third value.
3. signal transmission method according to claim 2, wherein recognizing the coding pattern of the corresponding output signal
In step, which is recognized according to the number of first value, the second value and the third value.
4. a kind of signal transmission method, comprising:
It receives a square-wave signal and passes through an output signal caused by a high-pass filter；
The output signal is sampled with an interval time, and generates a plurality of sampling values；
A plurality of sampling values are compared with an at least threshold value to generate a plurality of comparison results；And
According to a plurality of comparison results, a coding pattern of the corresponding output signal is recognized；
Include: in the step of generating the coding pattern of the corresponding output signal
Detect the time maintained before a positive output voltage to the negative output voltage that variation is the output signal for the output signal
What length and/or detect maintained before the negative output voltage of the output signal to the positive output voltage that variation is the output signal
Time span, to confirm the coding pattern.
5. a kind of signal transmission method, comprising:
It receives a square-wave signal and passes through an output signal caused by a high-pass filter；
The output signal is sampled with an interval time, and generates a plurality of sampling values；
A plurality of sampling values are compared with an at least threshold value to generate a plurality of comparison results；And
According to a plurality of comparison results, a coding pattern of the corresponding output signal is recognized, wherein the square-wave signal is one non-
Periodical signal, after the step of generating the coding pattern of the corresponding output signal, which is further included:
The one first output voltage extremely variation of the output signal is detected to maintain before one second output voltage of the output signal
Time span and/or the second output voltage extremely variation for detecting the output signal are a third output voltage of the output signal
The time span of preceding maintenance, to confirm the coding pattern.
6. a kind of communication system, comprising:
One first communication device, comprising:
One signal generates mould group, to generate a square-wave signal；And
One first transmitting-receiving mould group to transmit an output signal, and includes:
One common mode filter unit, the high-frequency components to filter out the square-wave signal are the output signal；And
One second communication device includes:
One second transmitting-receiving mould group, to receive the output signal；And
One judging unit answers this to be sampled and generate a plurality of sampling values to the output signal with an interval time
Several sampling values are compared with an at least threshold value generates a plurality of comparison results, and is recognized according to a plurality of comparison results
One corresponding to the output signal encodes pattern；
Wherein for the judging unit when a plurality of sampling values are greater than first threshold value in an at least threshold value, judgement should
Comparison result is one first value；When a plurality of sampling values are less than second threshold value in an at least threshold value, judgement
The comparison result is a second value.
7. communication system according to claim 6, wherein when a plurality of sampling values between first threshold value and this
When two threshold values, judge the comparison result for a third value.
8. communication system according to claim 7, wherein the judging unit is according to first value, the second value and the third
The number of value recognizes the coding pattern.
9. a kind of communication system, comprising:
One first communication device, comprising:
One signal generates mould group, to generate a square-wave signal；And
One first transmitting-receiving mould group to transmit an output signal, and includes:
One common mode filter unit, the high-frequency components to filter out the square-wave signal are the output signal；And
One second communication device includes:
One second transmitting-receiving mould group, to receive the output signal；And
One judging unit answers this to be sampled and generate a plurality of sampling values to the output signal with an interval time
Several sampling values are compared with an at least threshold value generates a plurality of comparison results, and is recognized according to a plurality of comparison results
Pattern is encoded corresponding to the one of the output signal, which detects a positive output voltage extremely variation of the output signal to be somebody's turn to do
The time span that maintains before one negative output voltage of output signal and/or the negative output voltage for detecting the output signal are to changing
For the time span maintained before the positive output voltage of the output signal, to confirm the coding pattern.
10. a kind of communication system, comprising:
One first communication device, comprising:
One signal generates mould group, to generate a square-wave signal；And
One first transmitting-receiving mould group to transmit an output signal, and includes:
One common mode filter unit, the output signal of the radio-frequency component to filter out the square-wave signal；And
One second communication device, comprising:
One second transmitting-receiving mould group to receive the output signal, and includes:
One judging unit answers this to be sampled and generate a plurality of sampling values to the output signal with an interval time
Several sampling values are compared with an at least threshold value generates a plurality of comparison results, and is recognized according to a plurality of comparison results
One corresponding to the output signal encodes pattern；
Wherein for the judging unit when a plurality of sampling values are greater than first threshold value in an at least threshold value, judgement should
Comparison result is one first value；When a plurality of sampling values are less than second threshold value in an at least threshold value, judgement
The comparison result is a second value.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6121894A (en) * | 1998-11-23 | 2000-09-19 | U.S. Army Corps Of Engineers As Represented By The Secretary Of The Army | Low cost time domain reflectometry system for bridge scour detection and monitoring |
| CN101452520A (en) * | 2007-11-29 | 2009-06-10 | 台扬科技股份有限公司 | Signal processor for receiving wireless radio frequency identification signal and method thereof |
| CN101471906A (en) * | 2007-12-28 | 2009-07-01 | 瑞昱半导体股份有限公司 | Novel continuous time suitable equalization device architecture |
| US20130057069A1 (en) * | 2011-08-04 | 2013-03-07 | Scott Alan Meredith-Jones | Maximum power point tracker |
| US20140320112A1 (en) * | 2012-02-29 | 2014-10-30 | Fuji Electric Fa Components & Systems Co., Ltd. | Current detecting device |
-
2015
- 2015-04-15 CN CN201510177788.8A patent/CN106143359B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6121894A (en) * | 1998-11-23 | 2000-09-19 | U.S. Army Corps Of Engineers As Represented By The Secretary Of The Army | Low cost time domain reflectometry system for bridge scour detection and monitoring |
| CN101452520A (en) * | 2007-11-29 | 2009-06-10 | 台扬科技股份有限公司 | Signal processor for receiving wireless radio frequency identification signal and method thereof |
| CN101471906A (en) * | 2007-12-28 | 2009-07-01 | 瑞昱半导体股份有限公司 | Novel continuous time suitable equalization device architecture |
| US20130057069A1 (en) * | 2011-08-04 | 2013-03-07 | Scott Alan Meredith-Jones | Maximum power point tracker |
| US20140320112A1 (en) * | 2012-02-29 | 2014-10-30 | Fuji Electric Fa Components & Systems Co., Ltd. | Current detecting device |
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