CN101707610B - Data transmission method of multi-channel radio monitoring receiver - Google Patents
Data transmission method of multi-channel radio monitoring receiver Download PDFInfo
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- CN101707610B CN101707610B CN2009102378733A CN200910237873A CN101707610B CN 101707610 B CN101707610 B CN 101707610B CN 2009102378733 A CN2009102378733 A CN 2009102378733A CN 200910237873 A CN200910237873 A CN 200910237873A CN 101707610 B CN101707610 B CN 101707610B
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Abstract
The invention relates to a data transmission method of a multi-channel radio monitoring receiver, belonging to the technical field of network communication. The data transmission method uses configuration numbers and order numbers of two types of registers and identification data frames of the two types of registers to simplify data frame headers of all parameter information, and uses three types of messages of a command message, a response message and a data message to finish interaction of data and instruction, thus reducing the redundant information generated in the communication process and improving the efficiency of data transmission. The invention also realizes dynamic allocation and release to network channels by applying for UDP ports, and realizes separation of channel parameter information and channel data on protocol design, thus avoiding the repetition and mixing of information, reducing the forced occupation to the ports and increasing the flexibility and portability of the protocol.
Description
Technical field
The present invention relates to a kind of data transmission method of multi-channel radio monitoring receiver, belong to network communications technology field.
Background technology
Can be in the course of work of radio monitoring receiver to a large amount of polynary real-time Monitoring Data of client transmissions; Comprise the frequency spectrum data (FFT data) of multiband multiresolution, the signal phasor analysis data (instantaneous amplitude of multichannel narrow band channel; Instantaneous phase; Instantaneous frequency, planisphere etc.), analysis data of the frequency degree of taking of direction finding data, voice data, various ITU measurement parameters and each frequency etc.Data quantity transmitted is big, kind is many, and generally needs very fast sweep velocity (for example 40GHz/s), so not only need data processing speed efficiently, keeps real-time update thereby also need data be transferred to client fast simultaneously.
The common peripheral communications interface of radio monitoring receiver comprises serial ports, pci bus interface etc., and along with the requirement of spectrum monitoring to transmission speed and data class improves constantly, these interfaces can't satisfy the performance requirement of current spectrum monitoring.The highest 480Mbit/s of speed of USB 2.0 interfaces can reach the rate request of Monitoring Data, but USB 2.0 interfaces is unfavorable for realizing the multiple devices networking.
Network interface is owing to can satisfy the demand that the speed of transfer of data can satisfy the monitoring equipment networking again; So become a kind of desirable communication interface of monitoring equipment; But the existing data transmission method based on network interface is mostly comparatively loaded down with trivial details; The redundancy of transfer of data is big, and does not have unified standard.
For example; Radio monitoring receiver need be to the FFT data of user's transmission of one line broad-band channel, the FFT data of two-way narrow band channel, the IQ data and one road voice data of one road narrow band channel; When these data are transmitted through a physical cables circuit; Because the user asks the number of channel and to the configuration parameter of each channel of asking in continuous variation; And the data code flow speed of each channel is inconsistent, and data volume also varies in size, so the data of each channel arrive also irregular the following of sequencing of client through peripheral interface.
In order to address this problem, the way of current network agreement is: before a frame channel data, add frame head and distinguish the data under the different situations.These frame head information comprise: be used to distinguish the numbering of different channels, the information that is used to distinguish the information of data content and is used to explain institute's respective channels configuring condition.If consider the flexibility of agreement, also need add the information that is used to distinguish data type, data unit size and data total length.Because the data arrives user side that the different configuration parameters of different channels produce down is at random; And hope that data frame format is unified; So just need all add the frame head information of same format to each frame data, this just will produce the information of a lot of redundancies in communication process.In addition, if in the transmission course of the data of same channel, the user has changed the configuration status of channel, can distinguish the different configurations data of same channel down in order to make the user, and present way also is before channel data, to add differentiation information to avoid data to obscure.For parallel multichannel receiver structure; This method has not only increased the complexity that the user handles the transfer of data interface protocol; The probability that receives data that leads to errors rises, and can influence the portability of interface protocol, even has influence on the performance of equipment.
Summary of the invention
The object of the present invention is to provide a kind of data transmission method of multi-channel radio monitoring receiver; Its basic principle is to use two kinds of registers to come the identification data frame; Thereby the data frame head of all parameter informations of abbreviation; And number realize dynamic assignment and release through the application udp port, realize that on design of protocol channel parameter information separates with channel data, avoided the repetition of information and obscure network channel.
The objective of the invention is to realize through following technical proposals.
The data transmission method of a kind of multi-channel radio monitoring receiver of the present invention:
The type of message and the register type that at first will use in regulation this method, the type of message that this method is used have three kinds: command messages, response message and data-message.Wherein:
Command messages: client is issued the configuration information or the solicited message of receiver, is used for channel configuration, transmits through Transmission Control Protocol;
Response message: receiver is issued the channel information or the confirmation of client, transmits through Transmission Control Protocol;
Data-message: the data of network channel transmission.Be used for transfer of data, transmit through udp protocol.
Secondly this method has been used two kinds of register type: configuration numbered register and serial number register.Wherein:
The configuration numbered register: length is 32, and the corresponding configuration numbered register of each channel once disposes channel, and the configuration numbered register numerical value that then this channel is corresponding adds 1;
The serial number register: length is 32, the corresponding serial number register of each channel, and every transmission one frame data of channel, the serial number register value that then this channel is corresponding adds 1.
Accomplish after the definition of type of message and register type, can begin transfer of data through network interface between multi-channel radio monitoring receiver and the client, the job step of the inventive method is following:
Step 1: client is sent the TCP connection request to radio monitoring receiver;
Step 2: after radio monitoring receiver is received the TCP connection request, send the response message comprise radio monitoring receiver device id number to client through Transmission Control Protocol;
Step 3: after client is received response message; Confirm the device id number of radio monitoring receiver; If device id number coupling is then successfully set up the TCP link communication, client is sent the command messages of request physic channel information to radio monitoring receiver through Transmission Control Protocol.
Step 4: radio monitoring receiver is numbered all physical channels that it comprises; Return the response message that contains physical channel numbers and attribute information through Transmission Control Protocol to client, these information comprise the data class that channel number, channel frequency scope, bandwidth range, gain ranging, channel provide etc.
Step 5: the correlated channels information that the client basis is received is come the physical channel of configuring receiver, physical channel is configured at every turn, and client is all sent the command messages that contains the configuration information of asking channel to some extent through Transmission Control Protocol to radio monitoring receiver.Comprise centre frequency, bandwidth resolution information of numbering, the channel of physical channel etc. in these information, comprise that also client is a udp port that each physical channel distributed number.
Step 6: radio monitoring receiver is done corresponding configuration to each physical channel receive the command messages that contains configuration information through Transmission Control Protocol after.If the channel configuration success then is made as flag bit successfully in response message, otherwise then is made as failure.Behind successful configures physical channel, radio monitoring receiver is through specifying different udp ports to set up corresponding network channel to each physical channel, and begins to send the channel data of institute under asking to dispose.Client is that each network channel safeguards a configuration numbered register, and the number of times of the configuration that this network channel is done is called the configuration numbering, whenever once disposes, and the configuration numbered register numerical value that then this network channel is corresponding adds 1.Client is also safeguarded a serial number register for each network channel simultaneously, and the quantity that network channel sends data is called serial number, every transmission one frame data, and the numerical value of serial number register increases progressively 1.The frame head of the data in the network channel only contains configuration numbering, serial number and Frame length at this moment.
Step 7: repeating step 4,5,6,7 is up to DTD.Every change primary network channel configuration, then client resends configuration messages, the value that disposes numbered register accordingly adds 1, be added to maximum 0xFFFFFFFF after, add up since 0 again.Every one of the network channel of UDP link bag data, the value of serial number register adds 1, adds up since 0 after being added to maximum 0xFFFFFFFF again.In case the network channel configuration change, the value that promptly disposes numbered register adds 1, and then the serial number register at all events is worth all since 0 counting.
Step 8: in the time of need stopping transfer of data; Client is sent the command messages that stops certain Channel Transmission; Radio monitoring receiver receives orders and stops to send this channel data after the message, discharges udp port number simultaneously and sends the response message confirmed through the TCP link to client.Specify new port by client again in the time of need reactivating this channel.
Beneficial effect:
Use configuration numbered register and serial number register to come the identification data frame in the inventive method, replaced other all parameter informations, simplified the Frame header.And pass through the udp protocol port is carried out dynamic assignment, thereby realized the purpose of dynamic assignment network channel, reduced taking property of pressure, and increased the flexibility and the portability of agreement port.
Description of drawings:
The whole session flow chart of Fig. 1-interface protocol of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment preferred implementation of the present invention is explained further details.
Before radio monitoring receiver and client begin transfer of data, at first define used three kinds of type of messages and two kinds of register type in the inventive method, table 1 has defined command messages and response message six types.
Table 1 command messages and response message four types
| Message identification number | Message name | Transmission direction | Type |
| 0x01 | Confirmation | Receiver-＞client | Response message |
| 0x02 | The request channel information | Client-＞receiver | Command messages |
| 0x03 | Return Channel information | Receiver-＞client | Response message |
| 0x04 | Configurating channel information | Client-＞receiver | Command messages |
| 0x05 | Stop the channel job information | Client-＞receiver | Command messages |
| 0x06 | The receiver id information | Receiver-＞client | Response message |
Command messages and response message all pass through the TCP link transmission, and its form is as shown in table 2:
The data format of table 2 command messages and response message
| Message identification number Message ID | Message-length Total size | Message content Content |
Data-message is through a plurality of UDP link transmission, and form is as shown in table 3:
The data format of table 3 data-message
| Configuration numbering Configure No. | Serial number Sequence No. | Data length Data length | Data content Content |
In the table 3; The configuration numbering is used to distinguish the data-message of same channel under different configuration statuses; The configuration of the Frame that produces after for example certain channel is configured for the N time is numbered N, and then the configuration of the Frame of the N+1 time configuration back generation is numbered N+1, and the like.Whether serial number is used to distinguish same channel at the sequencing that sends with (i.e. when configuration numbering is identical) data-message under configuration status, be mainly used in to distinguish time sequencing and the check data that data produce and lose.
The concrete communication process of the inventive method comprises following practical implementation step:
Step 1: client is sent the TCP connection request to radio monitoring receiver, when radio monitoring receiver is received request, returns response message, and receiver device ID number is 0x0001, and message identification number is 0x06, and response message format is as shown in table 4:
Table 4
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Identifier Message ID | Unsigned?long | 4bytes | 0x06 | Distinguish various message |
| Message-length Total Size | Unsigned?long long | 8bytes | The message total length comprises the message length field of identifier | |
| Device id Device ID | Unsigned?long | 4bytes | The type and the embedded software version information of receiver device are described. |
Client judges whether version number is correct after receiving response message, with the feasibility of guaranteeing to communicate by letter.
Step 2: client is sent the command messages of asking channel information through TCP chain road direction radio monitoring receiver, and message identification number is 0x02.This command messages form is as shown in table 5:
Table 5
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Identifier Message ID | Unsigned?long | 4bytes | 0x02 | Distinguish various message |
| Message-length Total Size | Unsigned?long long | 8bytes | The message total length comprises the message length field of identifier | |
| The number Number of UDP Port of available udp port | Unsigned?long | 4bytes | The number of the udp port that the client network module can be used number | |
| The udp port information list | Unsigned short | 2 bytes/ | Shared byte number is determined by total number |
Step 3: radio monitoring receiver returns the response message that comprises channel information through the TCP link after receiving the command messages of request channel information, and this response message identifier is 0x03.These information comprise the information of 3 communication channels, are respectively the channel and the voice-grade channel of Wideband FFT channel, arrowband IQ data, and other information comprise the data class that channel frequency scope, bandwidth range, channel provide etc.This response message format is as shown in table 6:
Table 6
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Identifier MessageID | Unsigned long | 4bytes | 0x03 | Distinguish various message |
| Message-length Total Size | Unsigned long?long | 8bytes | The message total length comprises the message length field of identifier | |
| The channel number | Unsigned long | 4bytes | The type and the embedded software version information of receiver are described. | |
| Number of Channels | ||||
| The channel information tabulation | Group | Length is determined by the channel number |
Group representes nested structure, and each channel information is a minor structure, describes like following table 7:
Table 7
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Channel number Channel ID | Unsigned?long | 4bytes | Distinguish each channel | |
| Channel minimum frequency Fmin | Unsigned?long | 4bytes | The Hz of unit | |
| Channel peak frequency Fmax | Unsigned?long | 4bytes | The Hz of unit | |
| Channel type Channel Type | Unsigned?long | 4bytes | [0，1] | 0: broad-band channel 1: narrow band channel |
| Channel data attribute Data Attribute | Unsigned?long | 0x01:FFT 0x02:IQ 0x03:Audio 0x04:DF (direction finding) 0x05: instantaneous amplitude 0x06: instantaneous phase 0x07: instantaneous frequency 0x08:ITU data | ||
| Bandwidth number Num of Bandwidth | Unsigned?long | 4bytes | It is the constraint that 0 expression does not have bandwidth condition | |
| The bandwidth information tabulation | Unsigned?long | 4bytes/ | Length is by the bandwidth number decision Hz of unit | |
| Resolution number N um of Resolution | Unsigned?long | 4bytes | It is the constraint that 0 expression does not have the resolution condition | |
| The resolution information tabulation | Unsigned?long | 4bytes/ | Length is by the resolution number decision Hz of unit | |
| Output sampling rate number Num of Fs | Unsigned?long | 4bytes | It is the constraint that 0 expression does not have the sample rate condition | |
| The sample rate information list | ?Unsigned?long | 4bytes/ | Length is by the sample rate number decision Hz of unit |
Step 4: after client is received the response message that comprises channel information; Parameter area according to total number of channels and channel; Send the command messages that contains the configuration information of asking channel to some extent through TCP chain road direction radio monitoring receiver, this command messages identifier is 0x04.Comprise centre frequency, bandwidth resolution information of number, the channel of channel etc. in these information, comprise that also client is a udp port that each channel distributed number, this port numbers is specified in step 2 by client.The content of the command messages of channel configuration is as shown in table 8:
Table 8
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Identifier Message ID | Unsigned?long | 4bytes | 0x04 | Distinguish various message |
| Message-length Total Size | Unsigned?long long | 8bytes | The message total length comprises the message length field of identifier | |
| Channel number Number of Channel | Unsigned?long | 4bytes | The type and the embedded software version information of receiver are described. | |
| The channel information tabulation | Group | Length is determined by the channel number |
Group representes nested structure, promptly contains a plurality of parameter channel configuration structures in the channel configuration message, and each channel letter structure of configured parameters is described like table 9:
Table 9
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Channel number Channel ID | Unsigned?long | 4bytes | Distinguish each channel | |
| Configuration numbering Configure No. | Unsigned?char | 1byte | The data that are used for subregion UDP channel | |
| Data variable type Data Type | Unsigned?char | 1byte | See data variable types value table | |
| Udp port number | Unsigned?short | 2byte | ||
| Channel center frequency Fc | Unsigned?long | 4bytes | The Hz of unit | |
| Channel width BandWidth | Unsigned?long | 4bytes | The Hz of unit | |
| Frequency resolution Resolution | Unsigned?long | 4bytes | The Hz of unit | |
| Data rate Fs | Unsigned?long | 4bytes | The Hz of unit |
The data of three channels of request are respectively channel 1,2,3 in the command messages, and corresponding udp port is 50001,51000,59000.
Step 5: radio monitoring receiver is received the command messages of channel configuration, returns the response message of configuration result, and message identification number is 0x01.If the response message (0x01) that contains error message is also returned in the channel configuration failure, concrete error message is described.If configuration parameter is correct, successfully disposed channel, error number is 0.The receiver network module is set up corresponding SOCKET and network channel and is sent the channel data under the configuration of asking through the udp port of appointment.
The response message content that comprises confirmation is as shown in table 11:
Table 11
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Identifier Message ID | Unsigned?long | 4bytes | 0x01 | Distinguish various message |
| Message-length Total Size | Unsigned?long?long | 8bytes | The message total length comprises the message length field of identifier | |
| Response ID | Unsigned?long | 4bytes | This field corresponds to the identifier of institute's response message | |
| Channel number Number of Channel | Unsigned?long | 4bytes | ||
| Channel status tabulation Channel state | Group |
Group representes nested structure, and the particular content of each channel status is as shown in table 12:
Table 12
| The parameter title | The parametric variable type | Parameter length | Value | Describe |
| Channel number | ?Unsigned?long | 4bytes | Distinguish each channel | |
| Channel?ID | ||||
| Error code Error Code | Unsigned?long | 4bytes | 0: inerrancy 1: frequency errors 2: bandwidth mistake 3: frequency resolution mistake 4: sample rate mistake 5: channel configuration failure 6: can not stop channel work 7: configuration numbering wrong 8: channel number mistake 9: port numbers is used up mistake |
Step 6: client receives and when asking corresponding status number from the network channel of corresponding port, beginning receive channel data, and client constantly receives the channel data with the corresponding status number of request from the network channel of corresponding port.The configuration numbering is used to distinguish the new data that arrive under the different configuration status of same channel; Serial number is distinguished the sequencing of the Frame of same channel same channel configuration status transmission, and the ordering that numbers in order.Client can read with the mode of inquiry, also can accomplish reading of data with message mechanism.
Step 7: client stops the Wideband FFT data of channel, sends the command messages that stops channel work.Receiver is received back transmission response message, and has stopped the work of passage 0.Discharge udp port 50001, made it to become idle udp port, also discharged corresponding network channel simultaneously.
The structure of ceasing and desisting order is as shown in table 13:
Table 13
| The parameter title | The parametric variable type | Parameter length | Span | Describe |
| Identifier Message ID | Unsigned?long | 4bytes | Distinguish various message | |
| Message-length Total Size | Unsigned?long?long | 8bytes | The message total length comprises the message length field of identifier | |
| Channel number Num Channel | Unsigned?long | 4bytes | The number of the channel that stops | |
| The channel number tabulation | Unsigned?long | 4bytes |
Step 8: (being repeating step 4) client has changed the bandwidth and the center of the 2nd channel, has changed the data rate of the 3rd channel and the configuration parameter of centre frequency, sends command messages (0x04) through the TCP link.The port that distributes still is 51000,59000.
Step 9: (being repeating step 5) radio monitoring receiver has returned the response message of confirmation.
Step 10: when (being repeating step 6) client receives and asks corresponding new status number from the network channel of corresponding port, beginning receive channel data, and the ordering that numbers in order.
Step 11: (being repeating step 7) client stops channel 2, channel 3, and transmission stops channel work message.Radio monitoring receiver sends response data, and has stopped the work of passage 2,3.Discharge udp port 51000 and 59000, made it to become idle udp port.
Claims (1)
1. the data transmission method of a multi-channel radio monitoring receiver is characterized in that:
At first define the type of message that uses in this method,
The type of message that this method is used has three kinds: command messages, and response message and data-message, wherein:
Command messages: client is issued the configuration information or the solicited message of receiver, is used for channel configuration, transmits through Transmission Control Protocol;
Response message: receiver is issued the channel information or the confirmation of client, transmits through Transmission Control Protocol;
Data-message: the data of network channel transmission, be used for transfer of data, transmit through udp protocol;
Next defines two kinds of register type: configuration numbered register and serial number register, wherein:
The configuration numbered register: length is 32, and the corresponding configuration numbered register of each channel once disposes channel, and the configuration numbered register numerical value that then this channel is corresponding adds 1;
The serial number register: length is 32, the corresponding serial number register of each channel, and every transmission one frame data of channel, the serial number register value that then this channel is corresponding adds 1;
The concrete performing step of said method is following:
Step 1: client is sent the TCP connection request to radio monitoring receiver;
Step 2: after radio monitoring receiver is received the TCP connection request, send the response message comprise radio monitoring receiver device id number to client through Transmission Control Protocol;
Step 3: after client is received response message; Confirm the device id number of radio monitoring receiver; If device id number coupling is then successfully set up the TCP link communication, client is sent the command messages of request physic channel information to radio monitoring receiver through Transmission Control Protocol;
Step 4: radio monitoring receiver is numbered all physical channels that it comprises; Return the response message that contains physical channel numbers and attribute information through Transmission Control Protocol to client, these information comprise the data class that channel number, channel frequency scope, bandwidth range, gain ranging, channel provide;
Step 5: client is come the physical channel of configuring receiver according to the correlated channels information of receiving; Physical channel is configured at every turn; Client is all sent to radio monitoring receiver through Transmission Control Protocol and is contained the command messages of asking channel configuration information to some extent; The numbering, the centre frequency of channel, the bandwidth resolution information that comprise physical channel in these information comprise that also client is a udp port that each physical channel distributed number;
Step 6: radio monitoring receiver is done corresponding configuration to each physical channel receive the command messages that contains configuration information through Transmission Control Protocol after; If the channel configuration success then is made as flag bit successfully in response message; Otherwise then be made as failure, behind successful configures physical channel, radio monitoring receiver is through specifying different udp ports to set up corresponding network channel to each physical channel; And begin to send ask the configuration under channel data; Client is that each network channel safeguards a configuration numbered register, and the number of times of the configuration that this network channel is done is called the configuration numbering, whenever once disposes; The configuration numbered register numerical value that then this network channel is corresponding increases by 1; Client is also safeguarded a serial number register for each network channel simultaneously, and the quantity that network channel sends data is called serial number, every transmission one frame data; The numerical value of serial number register increases progressively 1, and the frame head of the data in the network channel only contains configuration numbering, serial number and Frame length at this moment;
Step 7: repeating step 4,5,6 is up to DTD, every change primary network channel configuration, and then client resends configuration messages; The value of corresponding configuration numbered register adds 1; After being added to maximum 0xFFFFFFFF, add up every one bag of the network channel of UDP link data since 0 again; The value of serial number register adds 1 and adds up since 0 after being added to maximum 0xFFFFFFFF again; In case the network channel configuration change, the value that promptly disposes numbered register adds 1, and then the serial number register at all events is worth all since 0 counting;
Step 8: in the time of need stopping transfer of data; Client is sent the command messages that stops certain Channel Transmission; Radio monitoring receiver receives orders and stops to send this channel data after the message; Discharge udp port number simultaneously and send the response message confirmed through the TCP link, specify new port by client again in the time of need reactivating this channel to client.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116813A (en) * | 1994-03-23 | 1996-02-14 | 莫托罗拉有限公司 | Mobile radio with transmit command control and mobile radio system |
| CN1479986A (en) * | 2000-10-09 | 2004-03-03 | Method for transmission of data packets via radio interface of mobile radio system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116813A (en) * | 1994-03-23 | 1996-02-14 | 莫托罗拉有限公司 | Mobile radio with transmit command control and mobile radio system |
| CN1479986A (en) * | 2000-10-09 | 2004-03-03 | Method for transmission of data packets via radio interface of mobile radio system |
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