CN110120852A - A kind of hand-held ultrasound equipment wireless transmission improves the data processing method of bandwidth - Google Patents
A kind of hand-held ultrasound equipment wireless transmission improves the data processing method of bandwidth Download PDFInfo
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- CN110120852A CN110120852A CN201910386026.7A CN201910386026A CN110120852A CN 110120852 A CN110120852 A CN 110120852A CN 201910386026 A CN201910386026 A CN 201910386026A CN 110120852 A CN110120852 A CN 110120852A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
The data processing method for improving bandwidth is wirelessly transferred the present invention provides a kind of hand-held ultrasound equipment, the bandwidth of improve data transfer is realized by the way of dynamic coding, data bandwidth can increase by 20 to 40%, raw RF data or I/Q data can be transmitted to mobile terminal, high-performance can be carried out in mobile terminal, the algorithm of high complexity is realized, to greatly improve the picture quality of hand-held ultrasound.
Description
Technical field
The invention belongs to hand-hold wireless ultrasound data process fields, are related to the data processing of wireless medical ultrasonic imaging diagnosis
A kind of method, and in particular to hand-held ultrasound equipment wireless transmission improves the data processing method of bandwidth.
Background technique
Currently, hand-held ultrasound equipment volume pursues miniaturization, processing requirement low-power consumption, interface display just must in mobile terminal
The data for being related to the generation of hand-held ultrasound equipment are transferred to mobile terminal.In the prior art, it is limited to power, is limited to be wirelessly transferred
Speed (such as WIFI or bluetooth etc.), it is impossible to carry out the data transmission of big bandwidth.It is therefore necessary to the data transmitted of needs into
The certain processing of row, reduces bandwidth.
Summary of the invention
Aiming at the deficiencies in the prior art, the present invention provides a kind of wireless transmission of hand-held ultrasound equipment and improves bandwidth
Data processing method；Under conditions of bandwidth is certain, processing method, improves the bandwidth of actual data transfer through the invention.
For above-mentioned purpose, technical solution of the present invention is as follows:
A kind of hand-held ultrasound equipment wireless transmission improves the data processing method of bandwidth, comprising the following steps:
(1) initial data width P bit;(multiple that general P is 8)；
(2) dynamic coding: each P bit data is carried out to initial data, dynamic coding is N bit data or (N+M) bit number
According to；N+M is less than or equal to P；
(3) dynamic coding:
Highest order in N bit or (N+M) bit dynamic coding is designed as marker,
A) when marker is 0, small Signal coding is indicated,
B) when marker is 1, big Signal coding is indicated；
(4) dynamic coding data structure is established:
Flag = q(N-1)
Wherein, as Flag=0, q uses N bit segment encoding, the Signal coding small to signal amplitude y absolute value,
As Flag=1, q is using (N+M) bit coding, the Signal coding big to signal amplitude y absolute value；
(5) select N and M: needs are reasonably selected according to transmitting terminal processing mode and receiving end processing mode, general former
It is then:
A) 8bit alignment is kept；
B) coding mapping is simple or linear.
Further, the wireless transmission is carried out between hand-held ultrasound equipment and its mobile terminal.
Further, it is described be wirelessly transferred detailed process is as follows:
S1 hand-held ultrasound equipment releases wireless signal；
Initial connection is established in S2 hand-held ultrasound equipment and mobile terminal；
The mobile terminal S3 determines the actual bandwidth that wireless signal transmission is connect with hand-held ultrasound equipment；
The mobile terminal S4 selects the size of suitable N and M according to actual bandwidth；And hand-held ultrasound equipment N and M are set；Hand simultaneously
It holds ultrasonic device and enters dynamic coding；
S5 hand-held ultrasound equipment carries out dynamic coding for each data, small signal uses N according to the coding mode of selection
bit;Big signal sends data to data encoding, and to mobile terminal using (N+M) bit；
The mobile terminal S6 receives dynamic coding data, and according to N and M, the data after coding is decoded as normal data, are used for
Subsequent processing；When transmitting reconnect, return step S3.
The utility model has the advantages that the prior art is due to Bandwidth-Constrained, image data that can only be complete to mobile terminal transmission process.The present invention
After dynamic coding, data bandwidth can increase by 20 to 40%.Raw RF data or I/Q data can be transmitted to mobile terminal, it can
To carry out high-performance in mobile terminal, the algorithm of high complexity is realized, to greatly improve the picture quality of hand-held ultrasound.
Detailed description of the invention
Fig. 1 is that a kind of ultrasonic signal amplitude provided in an embodiment of the present invention changes schematic diagram.
Specific embodiment
The present invention is described below with reference to specific embodiments.It will be appreciated by those skilled in the art that these embodiments are only
For illustrating the present invention, do not limit the scope of the invention in any way.
A kind of hand-held ultrasound equipment wireless transmission improves the data processing method of bandwidth, the specific steps are as follows:
(1) initial data width is P bit
(2) dynamic coding:
A) highest order in N bit dynamic coding is designed as marker,
B) when initial data absolute value is less thanWhen, setting marker is 0, indicate small Signal coding,
C) when initial data absolute value is more than or equal toWhen, setting marker is 1, indicates big Signal coding；
(3) dynamic coding data structure and mapping:
Flag = q(N-1)
Wherein, as Flag=0, q uses N bit segment encoding, the Signal coding small to signal amplitude y absolute value,
As Flag=1, q is using (N+M) bit coding, the Signal coding big to signal amplitude y absolute value；
The corresponding relationship of table 1 N and Flag
(4) select N and M: needs are reasonably selected according to transmitting terminal processing mode and receiving end processing mode, general former
It is then:
A) 8bit alignment is kept, is handled convenient for software,
B) coding mapping is as simple as possible or linear, convenient for improving the efficiency of software processing.
Dynamic coding citing:
Assuming that N=9, M=7, small signal are encoded using 9bit, big signal is encoded using 16bit；
| y | < 127, coding binary output be 8bit, q=y,
Specific mapping can carry out different mappings according to various actual conditions；
| y | > 127, coding binary output is 15bit, q=y.
If big signal, after the 10% of entire signal, dynamic coding, all data only have encode preceding data 55%.
As shown in Figure 1, the characteristics of according to ultrasonic signal, most of signal amplitude is near 0, and only a few is minimum and maximum
Value.Dynamic coding, small signal use data bit few as far as possible to data processing method of the invention as far as possible again to signal data progress
Coded representation, big signal is indicated with more data-bit encoding, to improve data bandwidth.
Specifically, wireless transmission and raising bandwidth process between hand-held ultrasound equipment and its mobile terminal, as follows:
S1 hand-held ultrasound equipment releases wireless signal；
Initial connection is established in S2 hand-held ultrasound equipment and mobile terminal；
The mobile terminal S3 determines the actual bandwidth that wireless signal transmission is connect with hand-held ultrasound equipment；
The mobile terminal S4 selects the size of suitable N and M according to actual bandwidth；And hand-held ultrasound equipment N and M are set；Hand simultaneously
It holds ultrasonic device and enters dynamic coding；
S5 hand-held ultrasound equipment carries out dynamic coding for each data, small signal uses N according to the coding mode of selection
bit;Big signal sends data to data encoding, and to mobile terminal using (N+M) bit；
The mobile terminal S6 receives dynamic coding data, and according to N and M, the data after coding is decoded as normal data, are used for
Subsequent processing；When transmitting reconnect, return step S3.
Claims (3)
1. the data processing method that a kind of hand-held ultrasound equipment wireless transmission improves bandwidth, it is characterised in that: the following steps are included:
(1) initial data width P bit;(multiple that general P is 8)；
(2) dynamic coding: each P bit data is carried out to initial data, dynamic coding is N bit data or (N+M) bit number
According to；N+M is less than or equal to P；
(3) dynamic coding:
Highest order in N bit or (N+M) bit dynamic coding is designed as marker,
A) when marker is 0, small Signal coding is indicated,
B) when marker is 1, big Signal coding is indicated；
(4) dynamic coding data structure is established:
Flag = q(N-1)
Wherein, as Flag=0, q uses N bit segment encoding, the Signal coding small to signal amplitude y absolute value,
As Flag=1, q is using (N+M) bit coding, the Signal coding big to signal amplitude y absolute value；
(5) select N and M: needs are reasonably selected according to transmitting terminal processing mode and receiving end processing mode, general former
It is then:
A) 8bit alignment is kept；
B) coding mapping is simple or linear.
2. the data processing method that hand-held ultrasound equipment wireless transmission as described in claim 1 improves bandwidth, it is characterised in that:
The wireless transmission is carried out between hand-held ultrasound equipment and its mobile terminal.
3. the data processing method that hand-held ultrasound equipment wireless transmission as described in claim 1 improves bandwidth, it is characterised in that:
It is described be wirelessly transferred detailed process is as follows:
S1 hand-held ultrasound equipment releases wireless signal；
Initial connection is established in S2 hand-held ultrasound equipment and mobile terminal；
The mobile terminal S3 determines the actual bandwidth that wireless signal transmission is connect with hand-held ultrasound equipment；
The mobile terminal S4 selects the size of suitable N and M according to actual bandwidth；And hand-held ultrasound equipment N and M are set；Hand simultaneously
It holds ultrasonic device and enters dynamic coding；
S5 hand-held ultrasound equipment carries out dynamic coding for each data, small signal uses N according to the coding mode of selection
bit;Big signal sends data to data encoding, and to mobile terminal using (N+M) bit；
The mobile terminal S6 receives dynamic coding data, and according to N and M, the data after coding is decoded as normal data, are used for
Subsequent processing；When transmitting reconnect, return step S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386026.7A CN110120852A (en) | 2019-05-09 | 2019-05-09 | A kind of hand-held ultrasound equipment wireless transmission improves the data processing method of bandwidth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386026.7A CN110120852A (en) | 2019-05-09 | 2019-05-09 | A kind of hand-held ultrasound equipment wireless transmission improves the data processing method of bandwidth |
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| CN110120852A true CN110120852A (en) | 2019-08-13 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101527849A (en) * | 2009-03-30 | 2009-09-09 | 清华大学 | Storing system of integrated video decoder |
| CN102062855A (en) * | 2010-11-03 | 2011-05-18 | 安徽四创电子股份有限公司 | Radar echo compression/decompression algorithm based on run difference coding |
| CN102522999A (en) * | 2011-12-09 | 2012-06-27 | 电子科技大学 | Real-time compression method of three-dimensional sonic logging data |
| CN102938685A (en) * | 2012-11-15 | 2013-02-20 | 大连理工大学 | Wireless sensor network data compression method based on variable-length encoding |
| US20130077675A1 (en) * | 2011-09-23 | 2013-03-28 | Microsoft Corporation | Quality-based video compression |
| CN208640742U (en) * | 2017-10-20 | 2019-03-26 | 徐州市凯信电子设备有限公司 | A kind of ultrasonic image based on WiFi wirelessly passes screen system in real time |
-
2019
- 2019-05-09 CN CN201910386026.7A patent/CN110120852A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101527849A (en) * | 2009-03-30 | 2009-09-09 | 清华大学 | Storing system of integrated video decoder |
| CN102062855A (en) * | 2010-11-03 | 2011-05-18 | 安徽四创电子股份有限公司 | Radar echo compression/decompression algorithm based on run difference coding |
| US20130077675A1 (en) * | 2011-09-23 | 2013-03-28 | Microsoft Corporation | Quality-based video compression |
| CN102522999A (en) * | 2011-12-09 | 2012-06-27 | 电子科技大学 | Real-time compression method of three-dimensional sonic logging data |
| CN102938685A (en) * | 2012-11-15 | 2013-02-20 | 大连理工大学 | Wireless sensor network data compression method based on variable-length encoding |
| CN208640742U (en) * | 2017-10-20 | 2019-03-26 | 徐州市凯信电子设备有限公司 | A kind of ultrasonic image based on WiFi wirelessly passes screen system in real time |
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Application publication date: 20190813 |