CN105721108A - Electroencephalogram information data transmission method and system - Google Patents
Electroencephalogram information data transmission method and system Download PDFInfo
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- CN105721108A CN105721108A CN201610079778.5A CN201610079778A CN105721108A CN 105721108 A CN105721108 A CN 105721108A CN 201610079778 A CN201610079778 A CN 201610079778A CN 105721108 A CN105721108 A CN 105721108A
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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
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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Abstract
The invention discloses an electroencephalogram information data transmission method. The process of the method comprises that a control terminal receives a first data packet sent by an electroencephalogram information collection device, wherein the electroencephalogram information collection device converts the collected electroencephalogram information data from analog signals to digital signals and packages the digital signals into the first data packet according to a preset protocol and sends the first data packet to the control terminal; and when the control terminal receives the first data packet sent by the electroencephalogram information collection device, the control terminal analyzes and verifies the first data packet according to the preset protocol, thus obtaining the electroencephalogram information data. The invention also discloses an electroencephalogram information data transmission system. According to the method and the system, the electroencephalogram information data transmission stability and accuracy are improved; and further the electroencephalogram information data collection efficiency is improved.
Description
Technical field
The present invention relates to technical field of data transmission, particularly relate to transmission method and the system of a kind of brain electric information data.
Background technology
Brain wave (Electroencephalogram, EEG) be brain when activity, the postsynaptic potential that a large amount of neurons synchronize to occur is formed after summation.Electric wave change during its record cerebral activity, is the bioelectrical activity overall reflection at cerebral cortex or scalp surface of cranial nerve cell, has many neurocytes in activity, form the variation of electrical equipment in human brain.It is to say, there is the swing of electrical equipment to exist.And this swing is presented on scientific instrument, it appears that just as fluctuation.Modern scientific research is it is known that human brain can produce the brain wave of oneself when working, and available electron scanner detects, has at least four important wave bands.Confirm that brain has at least four different brain waves through research: α ripple, β ripple, θ ripple, δ ripple, when brain electric information is studied, it is necessary to gather these brain wave data by brain electric information collecting device, and the equipment being sent to other is analyzed.
And, brain electricity initial data contacts the mode of scalp to obtain brain wave analogue signal typically via brain wave acquisition front end (electrode), then converts analog signals into digital signal, is sent to various equipment and is analyzed.Data traffic required for transmission eeg data looks the quantity of front-end collection port number and different, and passage more various flow is more big, and the analysis of brain electric information data is also more detailed.
Brain wave signal belongs to time-domain signal, when analyzing brain wave, it is necessary to according to waveshape signal not in the same time the change of out of phase judge the state of brain, so, analyzing of brain wave signal is needed stronger stability；Brain wave signal belongs to low frequency signal, signal intensity only has tens of microvolt, and in brain wave signal detects, generally deposit Hz noise, the interference sources such as electromyographic signal, after filtering these interference sources, α can be analyzed from data, β, θ, each wave band such as δ is analyzed, the situation that brain is current can be obtained, so, there is higher complexity in brain wave signal, therefore, need to ensure the accuracy of brain electric information data when carrying out signal transmission, and in prior art, the general hands machine analogue signal collected being sent directly to as control terminal, the terminals such as panel computer carry out data analysis, but this transmission means cannot ensure the accuracy of data, frequently result in the data received and mistake occurs, need Resurvey, cause that brain electric information data acquisition efficiency is low.
Summary of the invention
The present invention provides transmission method and the system of a kind of brain electric information data, and its main purpose is in that to improve stability and the accuracy of the transmission of brain electric information data, and then improves the collecting efficiency of brain electric information data.
For achieving the above object, the present invention provides the transmission method of a kind of brain electric information data, and the transmission method of these brain electric information data includes:
Control terminal and receive the first packet that brain electric information collecting device sends, wherein, the brain electric information data collected are converted to digital signal by analogue signal by described brain electric information collecting device, and according to preset protocol, described digital signal are encapsulated as the first packet and send to described control terminal；
Described first packet, when receiving described first packet that described brain electric information collecting device sends, is resolved and verifies to obtain brain electric information data by described control terminal according to described preset protocol.
Preferably, the transmission method of described brain electric information data further comprises the steps of:
Control command is encapsulated in the second packet by described control terminal according to preset protocol, and sends described second packet to described brain electric information collecting device, wherein, described second packet include control command and the first verification and；
After described brain electric information collecting device receives described second packet, adopt described first verification and judge whether described control command makes a mistake in transmitting procedure；
When judging that described control command does not make a mistake in transmitting procedure, perform described control command.
Preferably, described control terminal is when receiving described first packet that described brain electric information collecting device sends, and the step resolving and verifying to obtain brain electric information data to described first packet according to described preset protocol includes:
Described control terminal receive described brain electric information collecting device send described first packet time, obtain the data segment in described first packet and second verification and, and according to described second verification and judge that whether described data segment correct；
If verifying according to described second and judging that described data segment is correct, then using described data segment as the brain electric information data collected, and store described brain electric information data.
Preferably, described according to described header packet information obtain the data segment in described first packet and the second verification and, and according to after described second verification and judging the step whether described data segment is correct, the transmission method of described brain electric information data further comprises the steps of:
If according to described second verification with judge described data segment mistake, then judge that described first packet that receives is as invalid first packet, and abandon described first packet.
Preferably, described control terminal is when receiving described first packet that described brain electric information collecting device sends, and the process obtaining the data segment in described first packet and the second verification sum includes step:
When reading the synchronizing signal mark of preset number from described first packet continuously, read the next byte of synchronizing signal mark of described preset number as the data length of described data segment；
From the next byte of byte corresponding to described data length, read the byte of described data length as described data segment；
After reading described data segment, read the next byte of described data segment as the second verification and.
Additionally, for achieving the above object, the present invention also provides for the transmission system of a kind of brain electric information data, and the transmission system of described brain electric information data includes brain electric information collecting device and controls terminal, and wherein, described brain electric information collecting device includes:
Signal conversion module, for being converted to digital signal by the brain electric information data collected by analogue signal；According to preset protocol, described digital signal is encapsulated as the first packet to send to described control terminal；
First sending module, sends to described control terminal for described digital signal being encapsulated as the first packet according to preset protocol；
Described control terminal includes:
Data reception module, for receiving the first packet that brain electric information collecting device sends；
First parsing module, for when receiving described first packet that described brain electric information collecting device sends, resolving and verify to obtain brain electric information data to described first packet according to described preset protocol.
Described control terminal also includes:
Data package module, for control command being encapsulated in the second packet according to preset protocol, wherein, described second packet include control command and the first verification and；
Second sending module, for sending described second packet to described brain electric information collecting device；
Described brain wave acquisition equipment also includes:
Second parsing module, after being used for receiving described second packet, adopts described first verification and judges whether described control command makes a mistake in transmitting procedure；
Perform module, for when judging that described control command does not make a mistake in transmitting procedure, performing described control command.
Preferably, described first parsing module includes:
Data extracting unit, for receive described brain electric information collecting device send described first packet time, obtain the data segment in described first packet and second verification and；
Data check unit, for verifying according to described second and judging that whether described data segment is correct；
Data storage cell, if for verifying according to described second and judging that described data segment is correct, then using described data segment as the brain electric information data collected, and storing described brain electric information data.
Preferably, described first parsing module also includes:
Data discarding unit, if for according to described second verification with judge described data segment mistake, then judging that described first packet that receives is as invalid first packet, and abandon described first packet.
Preferably, described data extracting unit, it is additionally operable to when reading the synchronizing signal mark of preset number from described first packet continuously, reads the next byte of synchronizing signal mark of described preset number as the data length of described data segment；From the next byte of byte corresponding to described data length, read the byte of described data length as described data segment；After reading described data segment, read the next byte of described data segment as the second verification and.
The transmission method of the brain electric information data that the present invention proposes and system, the brain electric information data collected are converted to digital signal by analogue signal by brain electric information collecting device, and to be encapsulated according to preset protocol be that the first packet sends to controlling terminal, control terminal and receive the first packet that brain electric information collecting device sends, resolve and verify to obtain brain electric information data to described first packet according to described preset protocol, in the present invention, the analogue signal collected first is converted to digital signal and is packaged sending according to default agreement by brain electric information collecting device, control terminal when receiving the first packet, same preset protocol is adopted to carry out the parsing of the first packet and verify to ensure the accuracy that data are transmitted, in this way, the data of recorder's brain wave information effectively and are continuously encapsulated in the first packet and are then transmitted by brain electric information collecting device, improve stability and the accuracy of the transmission of brain electric information data, and then improve the collecting efficiency of brain electric information data.
Accompanying drawing explanation
Fig. 1 is the flow chart of the transmission method first embodiment of brain electric information data of the present invention；
Fig. 2 be brain electric information data of the present invention transmission method first embodiment in the refinement schematic flow sheet of data parsing step；
Fig. 3 is the flow chart of transmission method second embodiment of brain electric information data of the present invention；
Fig. 4 be brain electric information data of the present invention transmission system first embodiment in the high-level schematic functional block diagram of brain electric information collecting device；
Fig. 5 be brain electric information data of the present invention transmission system first embodiment in control the high-level schematic functional block diagram of terminal；
Fig. 6 be brain electric information data of the present invention transmission system first embodiment in the refinement high-level schematic functional block diagram of the first parsing module；
Fig. 7 be brain electric information data of the present invention transmission system the second embodiment in control the high-level schematic functional block diagram of terminal；
Fig. 8 be brain electric information data of the present invention transmission system the second embodiment in the high-level schematic functional block diagram of brain electric information collecting device.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides the transmission method of a kind of brain electric information data.
With reference to shown in Fig. 1, for the flow chart of the transmission method first embodiment of brain electric information data of the present invention.
In the first embodiment, the transmission method of these brain electric information data includes:
Step S10, control terminal and receive the first packet that brain electric information collecting device sends, wherein, the brain electric information data collected are converted to digital signal by analogue signal by described brain electric information collecting device, and according to preset protocol, described digital signal are encapsulated as the first packet and send to described control terminal；
In the present embodiment, the wave data information characterizing human brain activity situation that brain electric information collecting device is got by the front-end acquisition device producing to contact with human body, it is converted to digital signal by analogue signal；Described control terminal can be the terminals such as computer, mobile phone, panel computer, wherein controls to adopt serial communication between terminal and brain electric information collecting device, it would however also be possible to employ the mode of the wireless telecommunications such as bluetooth.
Described preset protocol can be arranged in advance by user, the encapsulation format of such as digital signal, brain electric information data are encapsulated in the first packet by the form etc. of the first packet, and brain electric information data are sent to control terminal from brain wave acquisition equipment by the form again through the first packet.
For example, it is possible to the first packet is divided into three below part: PacketHeader (packet header), PacketPayload (data content) and PayloadChecksum (data check and).Wherein, the length of data content can be set in PacketHeader, the brain electric information data collected are stored in PacketPayload, owing to data are likely to occur the phenomenon that the data such as loss of data make a mistake in transmitting procedure, therefore, can PayloadChecksum arrange verification and, for control terminal according to the data in PayloadChecksum, data content is verified after receiving the data, to judge whether it mistake occurs in transmitting procedure.
Step S20, described first packet, when receiving described first packet that described brain electric information collecting device sends, is resolved and verifies to obtain brain electric information data by described control terminal according to described preset protocol.
Control terminal when receiving described first packet that described brain electric information collecting device sends, first packet is resolved, get PacketHeader, PacketPayload and PayloadChecksum respectively, and from PacketPayload, read brain electric information data, adopt and PayloadChecksum verifies and it is verified, verification is correct, then store described brain electric information data.
In one embodiment, with reference to shown in Fig. 2, step S20 can include following refinement step:
Step S21, described control terminal receive described brain electric information collecting device send described first packet time, obtain the data segment in described first packet and second verification and, and according to described second verification and judge that whether described data segment correct；
Step S22, if verifying according to described second and judging that described data segment is correct, then using described data segment as the brain electric information data collected, and stores described brain electric information data.
Further, according to after described second verification and judging the step whether described data segment is correct, the transmission method of these brain electric information data also includes:
If according to described second verification with judge described data segment mistake, then judge that described first packet that receives is as invalid first packet, and abandon described first packet.
Further, step S21 can include following refinement step:
When reading the synchronizing signal mark of preset number from described first packet continuously, read the next byte of synchronizing signal mark of described preset number as the data length of described data segment；
From the next byte of byte corresponding to described data length, read the byte of described data length as described data segment；
After reading described data segment, read the next byte of described data segment as the second verification and.
In one embodiment, the first packet is referred to following structure:
[SYNC][SYNC][PLENGTH][CODE][PAYLOAD][CHKSUM]
Wherein, PacketHeader contains 2 SYNC, i.e. synchronizing signal marks, totally 2 bytes, and a PLENGTH, a byte.Packet header employs 2 SYNC, is largely avoided the Data duplication with Payload and causes identification packet header mistake, and in other embodiments, preset number can also be other numbers, for instance arranges one or three synchronizing signal marks.Again through control and the verification of [CHKSUM] of [PLENGTH], further ensuring the accuracy that packet header identifies, [PLENGTH] defines the length of data in [PAYLOAD], namely contains how many bytes.[CODE] field is for identifying the transferring content of data segment.
PacketPayload contains the CH_INDEX (byte) and RAWDATA (two bytes) of some.Or other data tuple (data tuple is 3bytes, and first byte is [CODE], the meaning that mark data represent, and all the other 2 byte represent concrete numerical value, and data form is the same with Raw value).PayloadChecksum is the check code of the byte calculated according to definition.According to CHKSUM, [PLENGTH] data are carried out completeness check.
For brain electric information collecting device, the form continuous print of data stream can send the first packet, control terminal from data stream from reading data, until reading preset number [SYNC], read next byte value as [PLENGTH], i.e. data length, continue to read the next byte length until [PLENGTH], using the byte of data length as data segment, read the next byte of data segment as CHKSUM, namely second verification and, the data needing verification are calculated obtaining a CHKSUM according to checksum algorithm, such as, the data needing verification are sequentially carried out complement of one's summation, can be arranged in advance by user about concrete checksum algorithm, in calculated CHKSUM and the first packet second is verified and compares, if it is identical, then illustrate that data are correct, if differing, then verify failure, judge that described first packet that receives is as invalid first packet, and abandon described first packet.
The transmission method of the brain electric information data that the present embodiment proposes, the brain electric information data collected are converted to digital signal by analogue signal by brain electric information collecting device, and to be encapsulated according to preset protocol be that the first packet sends to controlling terminal, control terminal and receive the first packet that brain electric information collecting device sends, resolve and verify to obtain brain electric information data to described first packet according to described preset protocol, in the present invention, the analogue signal collected first is converted to digital signal and is packaged sending according to default agreement by brain electric information collecting device, control terminal when receiving the first packet, same preset protocol is adopted to carry out the parsing of the first packet and verify to ensure the accuracy that data are transmitted, in this way, the data of recorder's brain wave information effectively and are continuously encapsulated in the first packet and are then transmitted by brain electric information collecting device, improve stability and the accuracy of the transmission of brain electric information data, and then improve the collecting efficiency of brain electric information data.
With reference to shown in Fig. 3, the second embodiment of the transmission method of brain electric information data of the present invention is proposed based on the first embodiment of the transmission method of brain electric information data of the present invention.In the present embodiment, described method and first embodiment are distinctive in that, the transmission method of these brain electric information data is further comprising the steps of:
Step S30, control command is encapsulated in the second packet by described control terminal according to preset protocol, and sends described second packet to described brain electric information collecting device, wherein, described second packet include control command and the first verification and；
Step S40, after described brain electric information collecting device receives described second packet, adopts described first verification and judges whether described control command makes a mistake in transmitting procedure；
Step S50, when judging that described control command does not make a mistake in transmitting procedure, performs described control command.
In the present embodiment, control terminal when sending control instruction to brain electric information collecting device, encapsulate control instruction according to preset protocol defined above, define the second packet with reference to the first packet structure in first embodiment:
[SYNC][SYNC][PLENGTH][CODE][PAYLOAD][CHKSUM]
Wherein [CODE] is control command, [PAYLOAD] can be the particular content of control command, such as, control command is for gathering data, corresponding content is the brain wave data etc. gathering 30 seconds human brains, control command specifically can be configured as required by user, similarly, can encapsulate in the second packet first verification and, for brain wave acquisition equipment according to described first verification and the correctness verifying control instruction, if data make a mistake in the process of transmission, the control instruction then received is likely to not be control the control instruction that terminal sends, then it is performed without this control instruction.
The transmission method of the brain electric information data that the present embodiment proposes, control terminal when sending control instruction to brain electric information collecting device, equally possible according to above-mentioned preset protocol by control command and first verification and be encapsulated in the first packet and transmit to brain electric information collecting device, brain electric information collecting device is after receiving the first packet, from the first packet obtain first verification and and control instruction, whether correct according to the first checksum validation control instruction, if it is correct, then perform control instruction, improve the accuracy of control instruction transmission and stable.
The present invention also proposes the transmission system of a kind of brain electric information data.
With reference to shown in Fig. 4, for the transmission system first embodiment of brain electric information data of the present invention controls the high-level schematic functional block diagram of terminal, with reference to shown in Fig. 5, for the high-level schematic functional block diagram of brain electric information collecting device in the transmission system first embodiment of brain electric information data of the present invention.
In this embodiment, this brain electric information collecting device includes with lower module:
Signal conversion module 110, for being converted to digital signal by the brain electric information data collected by analogue signal；According to preset protocol, described digital signal is encapsulated as the first packet to send to described control terminal；
First sending module 120, sends to described control terminal for described digital signal being encapsulated as the first packet according to preset protocol；
Control terminal and include with lower module:
Data reception module 210, for receiving the first packet that brain electric information collecting device sends；
First parsing module 220, for when receiving described first packet that described brain electric information collecting device sends, resolving and verify to obtain brain electric information data to described first packet according to described preset protocol.
In the present embodiment, the wave data information characterizing human brain activity situation that brain electric information collecting device is got by the front-end acquisition device producing to contact with human body, it is converted to digital signal by analogue signal by signal conversion module 110；Described control terminal can be the terminals such as computer, mobile phone, panel computer, wherein controls to adopt serial communication between terminal and brain electric information collecting device, it would however also be possible to employ the mode of the wireless telecommunications such as bluetooth.
Described preset protocol can be arranged in advance by user, the encapsulation format of such as digital signal, brain electric information data are encapsulated in the first packet by the form etc. of the first packet, and brain electric information data are sent to control terminal from brain wave acquisition equipment by the form again through the first packet.
For example, it is possible to the first packet is divided into three below part: PacketHeader (packet header), PacketPayload (data content) and PayloadChecksum (data check and).Wherein, the length of data content can be set in PacketHeader, the brain electric information data collected are stored in PacketPayload, owing to data are likely to occur the phenomenon that the data such as loss of data make a mistake in transmitting procedure, therefore, can PayloadChecksum arrange verification and, for control terminal according to the data in PayloadChecksum, data content is verified after receiving the data, to judge whether it mistake occurs in transmitting procedure.
Control the data reception module 210 of terminal when described first packet that the first sending module 120 receiving described brain electric information collecting device sends, first packet is resolved by the first parsing module 220, get PacketHeader, PacketPayload and PayloadChecksum respectively, and from PacketPayload, read brain electric information data, adopt and PayloadChecksum verifies and it is verified, verification is correct, then store described brain electric information data.
In one embodiment, with reference to shown in Fig. 6, the first parsing module 220 can include following refinement unit:
Data extracting unit 221, for receive described brain electric information collecting device send described first packet time, obtain the data segment in described first packet and second verification and；
Data check unit 222, for verifying according to described second and judging that whether described data segment is correct；
Data storage cell 223, if for verifying according to described second and judging that described data segment is correct, then using described data segment as the brain electric information data collected, and storing described brain electric information data.
Further, the first parsing module 220 also includes:
Data discarding unit, if for according to described second verification with judge described data segment mistake, then judging that described first packet that receives is as invalid first packet, and abandon described first packet.
Further, data extracting unit 221, it is additionally operable to when reading the synchronizing signal mark of preset number from described first packet continuously, reads the next byte of synchronizing signal mark of described preset number as the data length of described data segment；From the next byte of byte corresponding to described data length, read the byte of described data length as described data segment；After reading described data segment, read the next byte of described data segment as the second verification and.
In one embodiment, the first packet is referred to following structure:
[SYNC][SYNC][PLENGTH][CODE][PAYLOAD][CHKSUM]
Wherein, PacketHeader contains 2 SYNC packet header synchronizing signal marks, totally 2 bytes and a PLENGTH, a byte.Packet header employs 2 SYNC, is largely avoided the Data duplication with Payload and causes identification packet header mistake, and in other embodiments, preset number can also be other numbers, for instance arranges one or three synchronizing signal marks.Verification again through the control of [PLENGTH] and [CHKSUM], further ensure the accuracy that packet header identifies, [PLENGTH] defines the length of data in [PAYLOAD], namely contains how many bytes, and [CODE] field is for identifying the transferring content of data segment.
PacketPayload contains the CH_INDEX (byte) and RAWDATA (two bytes) of some.Or other data tuple (data tuple is 3bytes, and first byte is [CODE], the meaning that mark data represent, and all the other 2 byte represent concrete numerical value, and data form is the same with Raw value).PayloadChecksum is the check code of the byte calculated according to definition.According to CHKSUM, [PLENGTH] data are carried out completeness check.
For brain electric information collecting device, the form continuous print of data stream can send the first packet, control the first parsing module 220 of terminal from data stream from reading data, until reading preset number [SYNC], read next byte value as [PLENGTH], i.e. data length, continue to read the next byte length until [PLENGTH], using the byte of data length as data segment, read the next byte of data segment as CHKSUM, namely second verification and, the data needing verification are calculated obtaining a CHKSUM according to checksum algorithm, such as, the data needing verification are sequentially carried out complement of one's summation, can be arranged in advance by user about concrete checksum algorithm, in calculated CHKSUM and the first packet second is verified and compares, if it is identical, then illustrate that data are correct, if differing, then verify failure, judge that described first packet that receives is as invalid first packet, and abandon described first packet.
The transmission system of the brain electric information data that the present embodiment proposes, the brain electric information data collected are converted to digital signal by analogue signal by brain electric information collecting device, and to be encapsulated according to preset protocol be that the first packet sends to controlling terminal, control terminal and receive the first packet that brain electric information collecting device sends, resolve and verify to obtain brain electric information data to described first packet according to described preset protocol, in the present invention, the analogue signal collected first is converted to digital signal and is packaged sending according to default agreement by brain electric information collecting device, control terminal when receiving the first packet, same preset protocol is adopted to carry out the parsing of the first packet and verify to ensure the accuracy that data are transmitted, in this way, the data of recorder's brain wave information effectively and are continuously encapsulated in the first packet and are then transmitted by brain electric information collecting device, improve stability and the accuracy of the transmission of brain electric information data, and then improve the collecting efficiency of brain electric information data.
With reference to shown in Fig. 7 and Fig. 8, based on second embodiment of transmission system of first embodiment proposition brain electric information data of the present invention of the transmission system of brain electric information data of the present invention.In the present embodiment, described system and first embodiment are distinctive in that:
Control terminal also to include:
Data package module 230, for control command being encapsulated in the second packet according to preset protocol, wherein, described second packet include control command and the first verification and；
Second sending module 240, for sending described second packet to described brain electric information collecting device；
Described brain wave acquisition equipment also includes:
Second parsing module 230, after being used for receiving described second packet, adopts described first verification and judges whether described control command makes a mistake in transmitting procedure；
Perform module 240, for when judging that described control command does not make a mistake in transmitting procedure, performing described control command.
In the present embodiment, controlling terminal when sending control instruction to brain electric information collecting device, data package module 230 encapsulates control instruction according to preset protocol defined above, defines the second packet with reference to the first packet structure in first embodiment:
[SYNC][SYNC][PLENGTH][CODE][PAYLOAD][CHKSUM]
Wherein [CODE] is control command, [PAYLOAD] can be the particular content of control command, such as, control command is for gathering data, corresponding content is the brain wave data etc. gathering 30 seconds human brains, control command specifically can be configured as required by user, similarly, can encapsulate in the second packet first verification and, for brain wave acquisition equipment according to described first verification and the correctness verifying control instruction, if it is determined that described control command does not make a mistake in transmitting procedure, then perform module 130 and perform described control command；If data make a mistake in the process of transmission, then the control instruction received is likely to not be control the control instruction that terminal sends, then be performed without this control instruction.
The transmission system of the brain electric information data that the present embodiment proposes, control terminal when sending control instruction to brain electric information collecting device, equally possible according to above-mentioned preset protocol by control command and first verification and be encapsulated in the first packet and transmit to brain electric information collecting device, brain electric information collecting device is after receiving the first packet, from the first packet obtain first verification and and control instruction, whether correct according to the first checksum validation control instruction, if it is correct, then perform control instruction, improve the accuracy of control instruction transmission and stable.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. the transmission method of brain electric information data, it is characterised in that the transmission method of described brain electric information data includes:
Control terminal and receive the first packet that brain electric information collecting device sends, wherein, the brain electric information data collected are converted to digital signal by analogue signal by described brain electric information collecting device, and according to preset protocol, described digital signal are encapsulated as the first packet and send to described control terminal；
Described first packet, when receiving described first packet that described brain electric information collecting device sends, is resolved and verifies to obtain brain electric information data by described control terminal according to described preset protocol.
2. the transmission method of brain electric information data according to claim 1, it is characterised in that the transmission method of described brain electric information data further comprises the steps of:
Control command is encapsulated in the second packet by described control terminal according to preset protocol, and sends described second packet to described brain electric information collecting device, wherein, described second packet include control command and the first verification and；
After described brain electric information collecting device receives described second packet, adopt described first verification and judge whether described control command makes a mistake in transmitting procedure；
When judging that described control command does not make a mistake in transmitting procedure, perform described control command.
3. the transmission method of brain electric information data according to claim 1, it is characterized in that, described control terminal is when receiving described first packet that described brain electric information collecting device sends, and the step resolving and verifying to obtain brain electric information data to described first packet according to described preset protocol includes:
Described control terminal receive described brain electric information collecting device send described first packet time, obtain the data segment in described first packet and second verification and, and according to described second verification and judge that whether described data segment correct；
If verifying according to described second and judging that described data segment is correct, then using described data segment as the brain electric information data collected, and store described brain electric information data.
4. the transmission method of brain electric information data according to claim 3, it is characterized in that, described according to described header packet information obtain the data segment in described first packet and the second verification and, and according to after described second verification and judging the step whether described data segment is correct, the transmission method of described brain electric information data further comprises the steps of:
If according to described second verification with judge described data segment mistake, then judge that described first packet that receives is as invalid first packet, and abandon described first packet.
5. the transmission method of brain electric information data according to claim 3, it is characterized in that, described control terminal is when receiving described first packet that described brain electric information collecting device sends, and the process obtaining the data segment in described first packet and the second verification sum includes step:
When reading the synchronizing signal mark of preset number from described first packet continuously, read the next byte of synchronizing signal mark of described preset number as the data length of described data segment；
From the next byte of byte corresponding to described data length, read the byte of described data length as described data segment；
After reading described data segment, read the next byte of described data segment as the second verification and.
6. the transmission system of brain electric information data, it is characterised in that the transmission system of described brain electric information data includes brain electric information collecting device and controls terminal, and wherein, described brain electric information collecting device includes:
Signal conversion module, for being converted to digital signal by the brain electric information data collected by analogue signal；According to preset protocol, described digital signal is encapsulated as the first packet to send to described control terminal；
First sending module, sends to described control terminal for described digital signal being encapsulated as the first packet according to preset protocol；
Described control terminal includes:
Data reception module, for receiving the first packet that brain electric information collecting device sends；
First parsing module, for when receiving described first packet that described brain electric information collecting device sends, resolving and verify to obtain brain electric information data to described first packet according to described preset protocol.
7. the transmission system of brain electric information data according to claim 6, it is characterised in that described control terminal also includes:
Data package module, for control command being encapsulated in the second packet according to preset protocol, wherein, described second packet include control command and the first verification and；
Second sending module, for sending described second packet to described brain electric information collecting device；
Described brain wave acquisition equipment also includes:
Second parsing module, after being used for receiving described second packet, adopts described first verification and judges whether described control command makes a mistake in transmitting procedure；
Perform module, for when judging that described control command does not make a mistake in transmitting procedure, performing described control command.
8. the transmission system of brain electric information data according to claim 6, it is characterised in that described first parsing module includes:
Data extracting unit, for receive described brain electric information collecting device send described first packet time, obtain the data segment in described first packet and second verification and；
Data check unit, for verifying according to described second and judging that whether described data segment is correct；
Data storage cell, if for verifying according to described second and judging that described data segment is correct, then using described data segment as the brain electric information data collected, and storing described brain electric information data.
9. the transmission system of brain electric information data according to claim 8, it is characterised in that described first parsing module also includes:
Data discarding unit, if for according to described second verification with judge described data segment mistake, then judging that described first packet that receives is as invalid first packet, and abandon described first packet.
10. the transmission system of brain electric information data according to claim 8, it is characterized in that, described data extracting unit, it is additionally operable to when reading the synchronizing signal mark of preset number from described first packet continuously, reads the next byte of synchronizing signal mark of described preset number as the data length of described data segment；From the next byte of byte corresponding to described data length, read the byte of described data length as described data segment；After reading described data segment, read the next byte of described data segment as the second verification and.
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