CN109167745B - Data sending method, data receiving method and terminal - Google Patents
Data sending method, data receiving method and terminal Download PDFInfo
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- CN109167745B CN109167745B CN201810997102.3A CN201810997102A CN109167745B CN 109167745 B CN109167745 B CN 109167745B CN 201810997102 A CN201810997102 A CN 201810997102A CN 109167745 B CN109167745 B CN 109167745B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults
- H04L25/085—Arrangements for reducing interference in line transmission systems, e.g. by differential transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
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Abstract
The invention discloses a data sending method, a data receiving method and a terminal, wherein the data sending method comprises the following steps: acquiring a plurality of transmission units of data to be transmitted; determining at least one array to be processed according to the plurality of transmission units, wherein the array to be processed comprises N transmission units selected from the plurality of transmission units, and each transmission unit has identification information; coding the array to be processed to obtain an array to be transmitted; the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence; and determining target data according to the array to be transmitted, and sending the target data to receiving equipment. The invention is beneficial to eliminating the signal periodicity during data transmission and avoids generating periodic waveform when the data to be transmitted is transmitted, thereby avoiding generating harmonic interference.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a data sending method, a data receiving method and a terminal.
Background
When the terminal transmits data, if transmission units sequentially transmitted in the data to be transmitted are similar, a periodic waveform is generated during data transmission, and harmonic interference is easily generated. For example, when a Central Processing Unit (CPU) of the terminal transmits an image to a Liquid Crystal Display Module (LCM), Electromagnetic Interference (EMI) is generated on a data line, and the EMI interferes with a receiving antenna of the terminal itself, so that receiving sensitivity is reduced. Currently, the LCM generally uses a Mobile Industry Processor Interface (MIPI) protocol for data transmission, a data line and a clock line of a physical layer (D-PHY) in the MIPI protocol are separated, and there is relatively large harmonic interference on the data line, if the data line uses 4 channels, and the minimum frequency of a periodic signal on the data line is one twelfth of the clk line, such a small frequency cannot make all harmonics thereof avoid all receiving frequency bands of the terminal by selecting a frequency. And the method of selecting another frequency according to the current channel value has two disadvantages: firstly, all receiving frequency bands of the terminal may not be avoided when carrier aggregation is adopted; secondly, when the channel is detected, if the frequency of the clk signal cannot be avoided in time, some time is interfered.
Disclosure of Invention
The invention provides a data sending method, a data receiving method and a terminal, and aims to solve the problem that harmonic interference is easy to generate during data transmission in the prior art.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a data sending method, which is applied to sending equipment, and the method includes:
acquiring a plurality of transmission units of data to be transmitted;
determining at least one array to be processed according to the plurality of transmission units, wherein the array to be processed comprises N transmission units selected from the plurality of transmission units, and each transmission unit has identification information;
coding the array to be processed to obtain an array to be transmitted; the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence;
and determining target data according to the array to be transmitted, and sending the target data to receiving equipment.
In a second aspect, an embodiment of the present invention further provides a terminal, including a sending device, where the sending device includes:
the device comprises an acquisition module, a transmission module and a transmission module, wherein the acquisition module is used for acquiring a plurality of transmission units of data to be transmitted;
a grouping module, configured to determine at least one pending array according to the plurality of transmission units, where the pending array includes N transmission units selected from the plurality of transmission units, and each of the transmission units has identification information;
the encoding module is used for encoding the array to be processed to obtain an array to be transmitted, and the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence;
and the sending module is used for determining target data according to the array to be transmitted and sending the target data to the receiving equipment.
In a third aspect, an embodiment of the present invention further provides a terminal, which includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, where the computer program, when executed by the processor, implements the steps of the data transmission method described above.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the data transmission method described above.
In a fifth aspect, an embodiment of the present invention further provides a data receiving method, which is applied to a receiving device, and is characterized in that the method includes:
receiving target data sent by sending equipment, wherein the target data comprises at least one array to be transmitted, the array to be transmitted comprises N transmission units in a plurality of transmission units in the target data, each transmission unit is provided with identification information, and the size sequence of the identification information of the N transmission units is a non-small-to-large sequence or a non-large-to-small sequence;
decoding the array to be transmitted to obtain an array to be processed;
and determining data to be output according to the array to be processed.
In a sixth aspect, an embodiment of the present invention further provides a terminal, including a receiving device, where the receiving device includes:
the receiving module is used for receiving target data sent by sending equipment, the target data comprises at least one array to be transmitted, the array to be transmitted comprises N transmission units in a plurality of transmission units in the target data, each transmission unit is provided with identification information, and the size sequence of the identification information of the N transmission units is a non-small-to-large sequence or a non-large-to-small sequence;
the decoding module is used for decoding the array to be transmitted to obtain an array to be processed;
and the processing module is used for determining data to be output according to the array to be processed.
In a seventh aspect, an embodiment of the present invention further provides a terminal, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the data receiving method described above.
In an eighth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the data receiving method described above.
In the embodiment of the invention, at least one array to be processed is determined according to a plurality of transmission units of data to be transmitted, and the array to be transmitted is obtained by coding the array to be processed, so that the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence, the signal periodicity during data transmission is eliminated, the generation of periodic waveforms during the transmission of the data to be transmitted is avoided, and the generation of harmonic interference is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 shows a flow chart of a data transmission method according to an embodiment of the invention;
FIG. 2 shows a flow chart of an encoding process of an embodiment of the invention;
FIG. 3 shows a block diagram of a transmitting device of an embodiment of the invention;
fig. 4 shows a flow chart of a data receiving method according to an embodiment of the invention;
FIG. 5 shows a flow chart of a decoding process of an embodiment of the invention;
FIG. 6 shows a block diagram of a receiving device of an embodiment of the invention;
fig. 7 is a schematic diagram of a hardware structure of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a data sending method, which is applied to a sending device, where the method includes:
step 11: a plurality of transmission units of data to be transmitted are acquired.
In this embodiment, the data to be transmitted may be image data or audio data. When the image data is to be transmitted, the transmission unit may be a pixel.
Step 12: and determining at least one array to be processed according to the plurality of transmission units.
The array to be processed comprises N transmission units selected from the plurality of transmission units, wherein each transmission unit has identification information. Wherein N is a positive integer.
And the N transmission units in the array to be processed are arranged according to the sequence from the big to the small of the identification information of the transmission units or the sequence from the small to the big.
As an implementation manner, the array to be processed includes N transmission units sequentially selected from the plurality of transmission units.
For example: the size sequence of the identification information of the plurality of transmission units in the data to be transmitted is from large to small or from small to large. And selecting N transmission units from the plurality of transmission units according to the sequence of the identification information from large to small or from small to large as the array to be processed.
Preferably, the value range of N is 10-50, such as: n may be 20.
And when the number of the transmission units in the data to be transmitted is less than or equal to 20, directly selecting all or part of the transmission units in the data to be transmitted as the array to be processed.
When the number of transmission units in the data to be transmitted is greater than 20, sequentially selecting 20 transmission units from the transmission unit with the smallest identification information in a descending order as an array to be processed until all transmission units in the data to be transmitted are allocated to the at least one array to be processed; or, starting from the transmission unit with the largest identification information, sequentially selecting 20 transmission units in turn from large to small as an array to be processed until all transmission units in the data to be transmitted are allocated to the at least one array to be processed.
Of course, part of the transmission units in the data to be transmitted may also be allocated to the array to be processed, for example: and sequentially selecting M times of transmission units with random number according to the sequence of the identification information from small to large or from large to small, and taking the M times of selected transmission units as the array to be processed. M is a positive integer, after M times of random number of transmission units are selected, the number of the transmission units in the array to be processed is N; the number of the transmission units selected each time can be the same or different; and when the transmission unit is selected at the Mth time, selecting a random number of transmission units behind the target identification information.
Specifically, N may be 20, when the 20 transmission units are selected, a random number of transmission units smaller than 20 may be selected in the order from small to large or from large to small according to the identification information, the transmission units with the interval of 1 to 2 are selected, and then the random number of transmission units are selected until the number of the selected transmission units reaches 20, and a to-be-processed array is generated.
As another implementation, the pending array includes N transmission units randomly selected from the plurality of transmission units.
The following description is made with reference to specific examples to randomly select N transmission units:
taking the LCM image as an example, the transmission units are pixels, and each pixel includes three colors: red R, green G, blue B, which are represented by three bytes, respectively.
The identification information of a part of transmission unit R bytes in the data to be transmitted is as follows: r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19, r20, r21, r22, r23, r24, r25, r26, r27, r28, r29, r 30; the G bytes of identification information are: g1, g2, g3, g4, g5, g6, g7, g8, g9, g10, g11, g12, g13, g14, g15, g16, g17, g18, g19, g20, g21, g22, g23, g24, g25, g26, g27, g28, g29, g 30; the identification information of the B bytes is: b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, b17, b18, b19, b20, b21, b22, b23, b24, b25, b26, b27, b28, b29, b 30.
Randomly selecting 20 transmission units as an array to be processed, wherein the array to be processed comprises R bytes with identification information of R1, R4, R5, R7, R8, R9, R11, R13, R14, R16, R17, R18, R19, R22, R23, R24, R26, R27, R28 and R30, G bytes with identification information of G1, G4, G5, G7, G8, G9, G11, G13, G14, G16, G17, G18, G19, G22, G23, G24, G26, G27, G28 and G30, and G30 bytes with identification information of B30, 30B and 30B, 30B and 30B, 30B and 30B and 30B.
Therefore, by means of random selection or interval selection, the generation of periodic waveforms when data to be transmitted are transmitted can be avoided, and harmonic interference is avoided.
Step 13: and coding the array to be processed to obtain the array to be transmitted.
The size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence.
In this embodiment, the array to be transmitted is obtained by encoding the array to be processed, where the size order of the identification information of the N transmission units is a non-small-to-large order or a non-large-to-small order. Therefore, when the data to be transmitted is transmitted according to the array to be transmitted, the generation of periodic waveforms can be avoided, and harmonic interference is avoided.
Step 14: and determining target data according to the array to be transmitted, and sending the target data to receiving equipment.
In this embodiment, when the array to be transmitted includes transmission units corresponding to all identification information in the data to be transmitted, the array to be transmitted is taken as target data; when the array to be transmitted does not include transmission units corresponding to all identification information in the data to be transmitted, taking the array to be transmitted and the transmission units corresponding to the identification information in the data to be transmitted except the identification information in the array to be transmitted as target data; and sending the target data to the receiving device to ensure the integrity of the sending of the target data.
In the scheme, at least one array to be processed is determined according to a plurality of transmission units of data to be transmitted, and the array to be transmitted is obtained by encoding the array to be processed, so that the magnitude sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence, the signal periodicity during data transmission is eliminated, the generation of periodic waveforms during the transmission of the data to be transmitted is avoided, and the generation of harmonic interference is avoided.
As an implementation manner, the step 13 specifically includes: and randomly sequencing the N transmission units in the array to be processed according to the identification information of the transmission units to obtain the array to be transmitted.
In this embodiment, the random sorting may be performed according to a preset random code. Therefore, the transmission units in the array to be processed are randomly sequenced according to the identification information, so that the signal periodicity of the N transmission units during transmission of the array to be processed is eliminated. Preferably, in order to ensure that the signal periodicity of the data to be transmitted during transmission is better eliminated, when each array to be processed is randomly ordered, the random codes corresponding to each array to be processed are different.
As another implementation manner, as shown in fig. 2, the step 13 further specifically includes:
step 131: and performing bitwise negation operation on part of the transmission units in the N transmission units in the array to be processed, and performing negation marking on the transmission units subjected to the bitwise negation operation.
Specifically, the performing bit-wise negation on part of the N transmission units in the array to be processed includes: and carrying out bit-wise negation operation on the transmission units arranged at equal intervals in the N transmission units in the input array to be processed.
Preferably, bit-wise negation operation is performed on every other transmission unit of the N transmission units in the to-be-processed output array. In the example of "00001010" represented by binary, it is represented as "11110101" after bit-wise negation.
Step 132: and randomly sequencing the transmission units which are not subjected to the bitwise negation operation and the transmission units subjected to the bitwise negation operation in the array to be processed according to the identification information of the transmission units to obtain the array to be transmitted.
In this embodiment, by performing bit-wise negation on part of the transmission units in the array to be processed, and randomly sorting the transmission units that are not subjected to bit-wise negation in the array to be processed and the transmission units that are subjected to bit-wise negation in the array to be processed according to the identification information, the signal periodicity of the transmission units in the array to be processed during transmission can be better eliminated, so that the signal periodicity of the data to be sent during transmission is better eliminated.
Of course, the N transmission units in the array to be processed may also be sorted randomly according to the identification information of the transmission units to obtain an intermediate processing array; and performing bitwise negation operation on part of the N transmission units in the intermediate processing array to obtain the array to be transmitted.
Specifically, the performing bit-wise negation on part of the N transmission units in the intermediate processing array includes: and carrying out bitwise negation operation on the transmission units arranged at equal intervals in the N transmission units in the intermediate processing array. Preferably, bit-wise negation operation is performed on every other transmission unit of the N transmission units in the to-be-processed output array.
The following describes the data transmission method with reference to a specific application scenario:
specifically, the transmitting device is a CPU, the receiving device is an LCM, and the data to be transmitted is LCM image data.
The image data to be sent in the CPU is encoded by an encoder, and the encoded image data is transmitted to a data selector; the data selector sends the coded image data to an MIPI (million Instructions interface) of the CPU according to a control instruction of the CPU, and sends the coded image data to an MIPI of the LCM through a data line; and the LCM receives the control instruction sent by the CPU, and decodes the encoded image data received by the MIPI of the LCM through a decoder to obtain the image data to be output so as to output the image data.
It should be noted that the control instruction sent by the CPU to the LCM does not pass through the encoder, and only the image data to be sent passes through the encoder. At the LCM side, the control instruction sent by the CPU arrives prior to the image data, the control instruction is directly sent to the LCM without passing through a decoder, and the LCM can identify and distinguish the received control instruction and the image data through time sequence, command format and the like.
The specific encoding process comprises the following steps:
taking LCM image data as an example: each pixel includes three colors: red R, green G, blue B. The three colors are represented by three bytes, for example, 20 pixels are used as a pending array, and 20 bytes are provided in the pending array for each color.
The three arrays are represented as:
R＝[r1，r2，r3，r4，r5，r6，r7，r8，r9，r10，r11，r12，r13，r14，r15，r16，r17，r18，r19，r20]；
G＝[g1，g2，g3，g4，g5，g6，g7，g8，g9，g10，g11，g12，g13，g14，g15，g16，g17，g18，g19，g20]；
B＝[b1，b2，b3，b4，b5，b6，b7，b8，b9，b10，b11，b12，b13，b14，b15，b16，b17，b18，b19，b20]；
wherein, each element in each array to be processed has identification information (id), such as: id1 ~ 20.
Performing bitwise negation on 20 elements in each array to be processed, wherein every other element is as follows: carrying out bitwise inversion on r2, r4, r6, r8, r10, r12, r14, r16, r18 and r20 to obtain r2 ', r 4', r6 ', r 8', r10 ', r 12', r14 ', r 16', r18 'and r 20';
carrying out bitwise inversion on g2, g4, g6, g8, g10, g12, g14, g16, g18 and g20 to obtain g2 ', g 4', g6 ', g 8', g10 ', g 12', g14 ', g 16', g18 'and g 20';
b2, b4, b6, b8, b10, b12, b14, b16, b18 and b20 are subjected to bitwise inversion operation to obtain b2 ', b 4', b6 ', b 8', b10 ', b 12', b14 ', b 16', b18 'and b 20';
then after bitwise negation, the following array is obtained:
R’＝[r1，r2’，r3，r4’，r5，r6’，r7，r8’，r9，r10’，r11，r12’，r13，r14’，r15，r16’，r17，r18’，r19，r20’]；
G’＝[g1，g2’，g3，g4’，g5，g6’，g7，g8’，g9，g10’，g11，g12’，g13，g14’，g15，g16’，g17，g18’，g19，g20’]；
B’＝[b1，b2’，b3，b4’，b5，b6’，b7，b8’，b9，b10’，b11，b12’，b13，b14’，b15，b16’，b17，b18’，b19，b20’]；
and sorting the ids 1-20 in the array to be processed after the bitwise negation operation according to a preset random code.
Such as: the identification information of the random code is represented as: id ═ 6, 3, 16, 11, 7, 17, 14, 8, 5, 19, 15, 1, 2, 4, 18, 13, 9, 20, 10, 12;
rearranging the elements of the array to be processed after bitwise negation operation according to the id sequence in the random code to obtain the array to be transmitted, wherein the method comprises the following steps:
R”＝[r6’，r3，r16’，r11，r7，r17，r14’，r8’，r5，r19，r15，r1，r2’，r4’，r18’，r13，r9，r20’，r10’，r12’]；
G”＝[g6’，g3，g16’，g11，g7，g17，g14’，g8’，g5，g19，g15，g1，g2’，g4’，g18’，g13，g9，g20’，g10’，g12’]；
B”＝[b6’，b3，b16’，b11，b7，b17，b14’，b8’，b5，b19，b15，b1，b2’，b4’，b18’，b13，b9，b20’，b10’，b12’]。
the array to be processed after the bitwise negation operation is randomly sequenced by adopting a preset random code to obtain an array to be transmitted, so that a decoder can perform decoding operation according to the random code corresponding to the array to be transmitted, and the receiving equipment can output the received coded data.
It should be noted that, the identification information of the N transmission units in the array to be processed may also be sorted according to the random code to obtain an intermediate processing array; and performing bitwise negation operation on every other transmission unit in the intermediate processing array to obtain the array to be transmitted.
According to the scheme, the image data to be transmitted is subjected to coding processing, the periodicity of signals on the data line during image transmission is eliminated, so that the peak harmonic generated by the data line can be eliminated fundamentally under the condition that the hardware cost is not increased, the coded image data are random signals during transmission, periodic signals are not formed, and the problem that part of time is interfered due to the fact that the frequency of a clk signal cannot be avoided in time is solved.
In addition, the data transmission method according to the embodiment of the present invention may be applied to a Camera Module (CMOS Camera Module, CCM for short) as a transmission device. In the case of CCM image data transmission, since a complete pixel of CCM is usually represented by 5 bytes, the above array to be processed needs to be changed from 3 arrays to 5 arrays, and the rest methods are consistent and will not be described herein again.
As shown in fig. 3, an embodiment of the present invention further provides a terminal, including a sending device 300, where the sending device 300 includes:
the obtaining module 310 is configured to obtain a plurality of transmission units of data to be sent.
A grouping module 320, configured to determine at least one pending array according to the plurality of transmission units, where the pending array includes N transmission units selected from the plurality of transmission units, and each of the transmission units has identification information.
The encoding module 330 is configured to perform encoding processing on the array to be processed to obtain an array to be transmitted, where the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence.
The sending module 340 is configured to determine target data according to the array to be transmitted, and send the target data to a receiving device.
Wherein the array to be processed includes N transmission units randomly selected from the plurality of transmission units.
The N transmission units in the array to be processed are arranged in the descending order or the ascending order of the identification information of the transmission units.
Wherein the encoding module 330 comprises:
and the first sequencing submodule is used for randomly sequencing the N transmission units in the array to be processed according to the identification information of the transmission units to obtain the array to be transmitted.
Wherein the encoding module 330 comprises:
and the first processing submodule is used for carrying out bitwise negation operation on part of the transmission units in the N transmission units in the array to be processed and carrying out negation marking on the transmission units subjected to the bitwise negation operation.
And the second sequencing submodule is used for randomly sequencing the transmission units which are not subjected to the bitwise negation operation and the transmission units which are subjected to the bitwise negation operation in the array to be processed according to the identification information of the transmission units to obtain the array to be transmitted.
Wherein the processing submodule comprises:
and the processing unit is used for carrying out bit-wise negation operation on the transmission units arranged at equal intervals in the N transmission units in the array to be processed.
The terminal provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiments of fig. 1 to fig. 2, and is not described herein again to avoid repetition.
The terminal of the embodiment of the invention determines at least one array to be processed according to a plurality of transmission units of data to be transmitted, and obtains the array to be transmitted by coding the array to be processed, so that the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence, the signal periodicity during data transmission is eliminated, the generation of periodic waveforms during the transmission of the data to be transmitted is avoided, and the generation of harmonic interference is avoided.
As shown in fig. 4, an embodiment of the present invention further provides a data receiving method, which is applied to a receiving device, where the method includes:
step 41: and receiving the target data transmitted by the transmitting equipment.
The target data comprises at least one array to be transmitted.
The array to be transmitted comprises N transmission units in a plurality of transmission units in the target data, each transmission unit is provided with identification information, and the size sequence of the identification information of the N transmission units is a non-small-to-large sequence or a non-large-to-small sequence.
In this embodiment, the array to be transmitted is an array to be transmitted obtained after the sending device performs an encoding operation on the array to be processed in the data to be sent, and details are not described here.
Step 42: and decoding the array to be transmitted to obtain the array to be processed.
In this embodiment, the array to be transmitted is decoded, that is, the array to be transmitted in the target data is restored to the array to be processed which is consistent with the array to be transmitted in the transmitting device, so that the receiving device can accurately output the target data.
Step 43: and determining data to be output according to the array to be processed.
In this embodiment, when the array to be processed includes transmission units corresponding to all identification information in the target data, the array to be processed is used as data to be output; when the array to be processed does not include the transmission units corresponding to all the identification information in the target data, the array to be processed and the transmission units corresponding to the identification information in the target data except the identification information in the array to be processed are used as data to be output, so that the output integrity of the data to be output is ensured.
As an implementation manner, the step 42 specifically includes:
and sequencing the N transmission units in the array to be transmitted according to the sequence from small to large or the sequence from large to small of the identification information of the transmission units to obtain the array to be processed.
In this embodiment, the decoding process is the inverse of the encoding process described above. In the encoding process, randomly sequencing N transmission units in an array to be processed in data to be transmitted according to identification information according to a preset random code to obtain the array to be transmitted; in the decoding process, the N transmission units in the array to be transmitted in the target data are restored to the sequence consistent with the array to be processed in the data to be transmitted according to the identification information, that is, the sequence is sequenced from small to large or from large to small according to the identification information of the transmission units, so that the target data can be accurately output by the receiving device.
As another implementation manner, as shown in fig. 5, the step 42 specifically includes:
step 421: and carrying out bitwise negation operation on the transmission units with the negation marks in the array to be transmitted.
In this embodiment, the transmission unit with the negation mark in the array to be transmitted performs the bitwise negation operation, so that the transmission unit performing the bitwise negation operation is recovered in the process of encoding the data to be processed in the data to be transmitted, thereby ensuring that the receiving device can accurately output the target data.
Step 422: and sequencing the transmission units which do not perform the bitwise negation operation and the transmission units which perform the bitwise negation operation in the array to be transmitted according to the sequence from small to large or the sequence from large to small of the identification information of the transmission units to obtain the array to be processed.
In this embodiment, bit-wise negation operation is performed on transmission units with negation marks in an array to be transmitted, and the transmission units which are not subjected to the bit-wise negation operation and the transmission units which are subjected to the bit-wise negation operation in the array to be transmitted are sorted according to the sequence of the sizes of the mark information of the transmission units, so as to restore the array to be transmitted in target data to an array to be processed which is consistent with the array to be transmitted in the transmitting device, so that the receiving device can accurately output the target data.
Of course, N transmission units in the array to be transmitted may also be first sorted according to the order from small to large or from large to small of the identification information of the transmission units to obtain an intermediate processing array; and performing bitwise negation operation on the transmission units with the negation marks in the intermediate processing array to obtain the array to be processed.
The following describes the data receiving method with reference to a specific application scenario:
specifically, the receiving device is an LCM, the transmitting device is a CPU, and the CPU transmits the encoded LCM image data to the LCM.
The CPU encodes the image data to be transmitted through an encoder, and transmits the encoded image data to the data selector; the data selector sends the coded image data to an MIPI (million Instructions interface) of the CPU according to a control instruction of the CPU, and sends the coded image data to an MIPI of the LCM through a data line; and the LCM receives the control instruction sent by the CPU, and decodes the encoded image data received by the MIPI of the LCM through a decoder to obtain the image data to be output so as to output the image data.
It should be noted that the control instruction sent by the CPU to the LCM does not pass through the encoder, and only the image data to be sent passes through the encoder. At the LCM side, the control instruction sent by the CPU arrives prior to the image data, the control instruction is directly sent to the LCM without passing through a decoder, and the LCM can identify and distinguish the received control instruction and the image data through time sequence, command format and the like.
The specific decoding process comprises:
the LCM receives encoded LCM image data sent by the CPU, wherein the image data comprises an array to be transmitted, and the array to be transmitted comprises 20 transmission units (pixels). Each pixel includes three colors: red R, green G, blue B. The three colors are represented by three bytes, and each color in a pending array has 20 bytes.
The array to be transmitted in the encoded LCM image data (target data) is represented as:
R”＝[r6’，r3，r16’，r11，r7，r17，r14’，r8’，r5，r19，r15，r1，r2’，r4’，r18’，r13，r9，r20’，r10’，r12’]；
G”＝[g6’，g3，g16’，g11，g7，g17，g14’，g8’，g5，g19，g15，g1，g2’，g4’，g18’，g13，g9，g20’，g10’，g12’]；
B”＝[b6’，b3，b16’，b11，b7，b17，b14’，b8’，b5，b19，b15，b1，b2’，b4’，b18’，b13，b9，b20’，b10’，b12’]；
because the random codes for sequencing the id 1-20 of the transmission units in the encoding process are predefined, the decoder directly recovers the id of the transmission unit in the array to be transmitted according to the preset random, and the recovered array is as follows:
R’＝[r1，r2’，r3，r4’，r5，r6’，r7，r8’，r9，r10’，r11，r12’，r13，r14’，r15，r16’，r17，r18’，r19，r20’]；
G’＝[g1，g2’，g3，g4’，g5，g6’，g7，g8’，g9，g10’，g11，g12’，g13，g14’，g15，g16’，g17，g18’，g19，g20’]；
B’＝[b1，b2’，b3，b4’，b5，b6’，b7，b8’，b9，b10’，b11，b12’，b13，b14’，b15，b16’，b17，b18’，b19，b20’]；
carrying out bitwise negation operation on the transmission units with negation marks in the array to obtain an array to be processed, wherein the array to be processed is expressed as:
R＝[r1，r2，r3，r4，r5，r6，r7，r8，r9，r10，r11，r12，r13，r14，r15，r16，r17，r18，r19，r20]；
G＝[g1，g2，g3，g4，g5，g6，g7，g8，g9，g10，g11，g12，g13，g14，g15，g16，g17，g18，g19，g20]；
B＝[b1，b2，b3，b4，b5，b6，b7，b8，b9，b10，b11，b12，b13，b14，b15，b16，b17，b18，b19，b20]。
it should be noted that, in the decoding process, bitwise negation operation may also be performed on every other transmission unit in the array to be transmitted to obtain an intermediate processing array; and sequencing the identification information of the N transmission units in the intermediate processing array according to the random code to obtain the array to be processed.
According to the scheme, the periodicity of signals on the data line during image transmission is eliminated by encoding the image data to be transmitted, so that the spike harmonic generated by the data line can be fundamentally eliminated without increasing the hardware cost, the encoded image data is a random signal during transmission, and a periodic signal is not formed, so that the problem that part of time is interfered due to the fact that the frequency of the clk signal cannot be avoided in time during transmission of the image data to be transmitted can be solved. And the complete output of the image data is ensured by decoding the encoded image data.
In addition, the data receiving method of the embodiment of the invention can also be applied to a CPU as receiving equipment. If the CCM transmits image data to the CPU, since a complete pixel of the CCM is usually represented by 5 bytes, the array to be transmitted needs to be changed from 3 arrays to 5 arrays, and other methods are consistent and are not described herein again.
As shown in fig. 6, an embodiment of the present invention further provides a terminal, including a receiving device 600, where the receiving device 600 includes:
the receiving module 610 is configured to receive target data sent by a sending device, where the target data includes at least one array to be transmitted, the array to be transmitted includes N transmission units in a plurality of transmission units in the target data, each transmission unit has identification information, and the size sequence of the identification information of the N transmission units is a non-small-to-large sequence or a non-large-to-small sequence.
And the decoding module 620 is configured to perform decoding processing on the array to be transmitted to obtain an array to be processed.
And the processing module 630 is configured to determine data to be output according to the array to be processed.
Wherein the decoding module 620 comprises:
and the third sequencing submodule is used for sequencing the N transmission units in the array to be transmitted according to the sequence from small to large of the identification information of the transmission units or the sequence from large to small to obtain the array to be processed.
Wherein the decoding module 620 comprises:
and the second processing submodule is used for carrying out bitwise negation operation on the transmission units with the negation marks in the array to be transmitted.
And the fourth sequencing submodule is used for sequencing the transmission units which are not subjected to the bitwise negation operation and the transmission units which are subjected to the bitwise negation operation in the array to be transmitted according to the sequence from small to large of the identification information of the transmission units or the sequence from large to small to obtain the array to be processed.
The terminal provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiments of fig. 4 to fig. 5, and is not described herein again to avoid repetition.
According to the terminal provided by the embodiment of the invention, at least one array to be processed is determined for the sending equipment according to a plurality of transmission units of data to be sent, and the array to be processed is coded to obtain the array to be transmitted for decoding processing, so that the complete and accurate output of the data is ensured; and the order of the identification information of the N transmission units in the array to be transmitted sent by the sending equipment is a non-small-to-large order or a non-large-to-small order, so that the signal periodicity during data transmission can be eliminated, the generation of periodic waveforms when the data to be sent is avoided, and the generation of harmonic interference is avoided.
It should be noted that the transmitting device and the receiving device may be disposed on the same terminal, or may be disposed on different terminals.
Fig. 7 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention.
The mobile terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 7 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
When the processor 710 is configured to send data, the following steps are performed: acquiring a plurality of transmission units of data to be transmitted; determining at least one array to be processed according to the plurality of transmission units, wherein the array to be processed comprises N transmission units selected from the plurality of transmission units, and each transmission unit has identification information; coding the array to be processed to obtain an array to be transmitted; the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence; and determining target data according to the array to be transmitted, and sending the target data to receiving equipment.
Wherein, when the processor 710 is configured to receive data, the following steps are performed: the target data receiving device is used for receiving target data sent by a sending device, the target data comprises at least one array to be transmitted, the array to be transmitted comprises N transmission units in a plurality of transmission units in the target data, each transmission unit is provided with identification information, and the size sequence of the identification information of the N transmission units is a non-small-to-large sequence or a non-large-to-small sequence; decoding the array to be transmitted to obtain an array to be processed; and determining data to be output according to the array to be processed.
The terminal of the embodiment of the invention determines at least one array to be processed according to a plurality of transmission units of data to be transmitted, and obtains the array to be transmitted by coding the array to be processed, so that the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence, the signal periodicity during data transmission is eliminated, the generation of periodic waveforms during the transmission of the data to be transmitted is avoided, and the generation of harmonic interference is avoided. And the complete output of the target data is ensured by decoding the encoded target data.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 710; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access via the network module 702, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the mobile terminal 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.
The mobile terminal 700 also includes at least one sensor 705, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 7061 and/or a backlight when the mobile terminal 700 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 7 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 708 is an interface through which an external device is connected to the mobile terminal 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 700 or may be used to transmit data between the mobile terminal 700 and external devices.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 710 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby integrally monitoring the mobile terminal. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
The mobile terminal 700 may also include a power supply 711 (e.g., a battery) for powering the various components, and the power supply 711 may be logically coupled to the processor 710 via a power management system that may enable managing charging, discharging, and power consumption by the power management system.
In addition, the mobile terminal 700 includes some functional modules that are not shown, and thus will not be described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 710, a memory 709, and a computer program stored in the memory 709 and capable of running on the processor 710, where the computer program is executed by the processor 710 to implement each process of the above data sending method and/or data receiving method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the data sending method and/or the data receiving method, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A data transmission method is applied to a transmission device, and is characterized by comprising the following steps:
acquiring a plurality of transmission units of data to be transmitted;
determining at least one array to be processed according to the plurality of transmission units, wherein the array to be processed comprises N transmission units selected from the plurality of transmission units, and each transmission unit has identification information;
coding the array to be processed to obtain an array to be transmitted; the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence;
determining target data according to the array to be transmitted, and sending the target data to receiving equipment;
the encoding processing is performed on the array to be processed to obtain the array to be transmitted, and the encoding processing includes:
performing bitwise negation operation on part of the N transmission units in the array to be processed, and performing negation marking on the transmission units subjected to bitwise negation operation;
and randomly sequencing the transmission units which are not subjected to the bitwise negation operation and the transmission units subjected to the bitwise negation operation in the array to be processed according to the identification information of the transmission units to obtain the array to be transmitted.
2. The data transmission method according to claim 1, wherein the array to be processed includes N transmission units randomly selected from the plurality of transmission units.
3. The data transmission method according to claim 1, wherein the N transmission units in the array to be processed are arranged in descending order or descending order of the identification information of the transmission units.
4. The data transmission method according to claim 1, wherein the bit-wise negating some of the N transmission units in the array to be processed includes:
and carrying out bitwise negation operation on the transmission units arranged at equal intervals in the N transmission units in the array to be processed.
5. A terminal comprising a transmitting device, wherein the transmitting device comprises:
the device comprises an acquisition module, a transmission module and a transmission module, wherein the acquisition module is used for acquiring a plurality of transmission units of data to be transmitted;
a grouping module, configured to determine at least one pending array according to the plurality of transmission units, where the pending array includes N transmission units selected from the plurality of transmission units, and each of the transmission units has identification information;
the encoding module is used for encoding the array to be processed to obtain an array to be transmitted, and the size sequence of the identification information of the N transmission units in the array to be transmitted is a non-small-to-large sequence or a non-large-to-small sequence;
the transmitting module is used for determining target data according to the array to be transmitted and transmitting the target data to the receiving equipment;
the encoding module is specifically configured to:
performing bitwise negation operation on part of the N transmission units in the array to be processed, and performing negation marking on the transmission units subjected to bitwise negation operation;
and randomly sequencing the transmission units which are not subjected to the bitwise negation operation and the transmission units subjected to the bitwise negation operation in the array to be processed according to the identification information of the transmission units to obtain the array to be transmitted.
6. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the data transmission method according to any one of claims 1 to 4.
7. A data receiving method applied to a receiving device, the method comprising:
receiving target data sent by sending equipment, wherein the target data comprises at least one array to be transmitted, the array to be transmitted comprises N transmission units in a plurality of transmission units in the target data, each transmission unit is provided with identification information, and the size sequence of the identification information of the N transmission units is a non-small-to-large sequence or a non-large-to-small sequence;
decoding the array to be transmitted to obtain an array to be processed;
determining data to be output according to the array to be processed;
the decoding processing is performed on the array to be transmitted to obtain the array to be processed, and the decoding processing comprises the following steps:
carrying out bitwise negation operation on the transmission units with negation marks in the array to be transmitted;
and sequencing the transmission units which do not perform the bitwise negation operation and the transmission units which perform the bitwise negation operation in the array to be transmitted according to the sequence from small to large or the sequence from large to small of the identification information of the transmission units to obtain the array to be processed.
8. A terminal comprising a receiving device, wherein the receiving device comprises:
the receiving module is used for receiving target data sent by sending equipment, the target data comprises at least one array to be transmitted, the array to be transmitted comprises N transmission units in a plurality of transmission units in the target data, each transmission unit is provided with identification information, and the size sequence of the identification information of the N transmission units is a non-small-to-large sequence or a non-large-to-small sequence;
the decoding module is used for decoding the array to be transmitted to obtain an array to be processed;
the processing module is used for determining data to be output according to the array to be processed;
the decoding module is specifically configured to:
carrying out bitwise negation operation on the transmission units with negation marks in the array to be transmitted;
and sequencing the transmission units which do not perform the bitwise negation operation and the transmission units which perform the bitwise negation operation in the array to be transmitted according to the sequence from small to large or the sequence from large to small of the identification information of the transmission units to obtain the array to be processed.
9. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on said memory and executable on said processor, said computer program, when executed by said processor, realizing the steps of the data receiving method according to claim 7.
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| CN101442389A (en) * | 2007-11-23 | 2009-05-27 | 华为技术有限公司 | Method and apparatus for sending and receiving multi-aerial system data |
| CN103442144A (en) * | 2013-08-29 | 2013-12-11 | 广东欧珀移动通信有限公司 | Method and device for reducing electromagnetic interference of intelligent cell phone |
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