CN102386941A - Data transmission method, pipeline monitoring method, RF transceiver and system - Google Patents
Data transmission method, pipeline monitoring method, RF transceiver and system Download PDFInfo
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Abstract
The present invention discloses a data transmission method, pipeline monitoring method, RF transceiver and system. The method comprises: broadcasting and transmitting, by a first radio frequency (RF) transceiver, a data transmission request, and receiving, by the first RF transceiver, a data transmission response returned by a second RF transceiver, wherein the data transmission response includes at least a local identification (ID) of the second RF transceiver as an object ID; analyzing and obtaining, by the first RF transceiver, the object ID from the data transmission response; judging, by the first RF transceiver, whether the second RF transceiver returning the data transmission response is a data receiver according to the local ID and the object ID, if so, sending data to the second RF transceiver; and repeatedly performing, by the second RF transceiver, the above operations of the first RF transceiver, until the local RF transceiver is determined to be the data receiver according to the local ID, and then the data transmission stops. The present invention solves the problem of RF transmission distance limit with the RF devices in a way of point-to-point and directional transmission, thereby realizing the long-distance data transmission at a low cost.
Description
Technical field
The embodiment of the invention relates to wireless communication technology, relates in particular to a kind of data transmission method, pipeline method for supervising, RF transceiver and system.
Background technology
Remote pipeline transmission is main means of transmitting materials such as combustion gas, gasoline at present.With transmission gasoline is example, needs extremely complicated and huge transfer conduit network, with the gasoline Trans-Provincial/Municipal, even cross over national continent and transmit, and the user and the enterprise that need distribution step by step to transfer to the terminal locates.In such transfer conduit network, transfer conduit can mainly be divided three classes.The first kind can be described as the collection pipeline, constitutes the complicated pipelines group with short mutual pipeline, is used for crude oil or source of the gas are transferred to processing factory or treatment plant from contiguous oil well.Second type can be described as the transportation pipeline, mainly is to have major diameter, longer pipe road, is used between city, country or even land, transmitting such as gasoline, natural gas, the such fluid product of smelting product.The transportation pipeline is applicable at a distance, flow, continual transmission greatly, need in the transportation pipeline network, a plurality of pressurizing points or pumping plant etc. be set usually, guarantees the transportation of fluid product.The 3rd type can be described as the distribution pipeline, is made up of numerous mutual minor diameter pipelines that link to each other, and is used for product is transported to the terminal client place.Distribution pipeline with numerous branches can be transported to family or down-stream enterprise place with natural gas or gasoline etc.
Huge like this transfer conduit network, whether it can continuously accomplish transport, for commercial production, even for economic healthy and national security, all is very important.This can monitor the operating condition of transfer conduit with regard to requiring.The monitoring scheme of prior art is as shown in Figure 1, and the far-end unit in the transfer conduit network (Remote Terminal Unit is called for short RTU) locates to be provided with respectively field instrumentation, is used for gathering in real time pipeline information.Field instrumentation can comprise flow measurement table, pressure measuring instrument, temperature survey table, and transponder and other sensor devices.The information that these field instrumentations collected at first is pooled to local RTU place, and then RTU utilizes communication system field data to be sent in real time the master-control room of center.The communication system that is adopted can be utilized satellite channel, microwave link or cellular telephone connection etc.
But, the monitoring technique level of pipeline has been received the restriction of communication system ability.If adopt the communication technologys such as satellite, cellular network among the RTU, so so on a large scale, communication will expend very big equipment Financial cost at a distance, also need bigger electric power support, so RTU can only transmit a spot of essential information usually.And these equipment are because cost is higher, so be difficult to large-scale use; Usually can only be arranged on some certain location; For example RTU places such as filling station, dispensing station, pumping plant, pressurizing point and shutoff valve station are as shown in Figure 1, so can not realize the complete monitoring to transfer conduit.In addition because transfer conduit all is arranged on remote field usually, regularly send the ground crew to monitor and the cost safeguarded also high.So present most transfer conduit all can not effectively be monitored, all there is not the potential safety hazard that breakage, quilt are stolen in guarded region.
In order to improve the monitoring level of long-distance transmissions pipeline, prior art need at first solve the expensive problem of remote transfer of data.
Summary of the invention
The present invention provides a kind of data transmission method, pipeline method for supervising, RF transceiver and system, to realize remote cheaply transfer of data.
The embodiment of the invention provides a kind of data transmission method, comprising:
The first RF transceiver broadcast transmission data transfer request, and receive the transfer of data response that second RF transceiver returns, comprise at least in the said transfer of data response that this machine sign of said second RF transceiver identifies as purpose;
Said first RF transceiver is resolved from said transfer of data response and is obtained said purpose sign;
Said first RF transceiver judges according to this machine sign and said purpose sign whether second RF transceiver that returns said transfer of data response is data sink, if then send data to said second RF transceiver;
Said second RF transceiver repeats the operation of first RF transceiver, when judging this machine according to this machine sign and be data sink, stops transfer of data.
The embodiment of the invention also provides a kind of pipeline method for supervising, comprising:
Each RF transceiver is image data from each the transducer RF tag that is provided with at interval along pipeline;
Each said RF transceiver adopts the data transmission method that any embodiment of the present invention provided that said data are sent to data sink as first RF transceiver;
Said data sink is sent to master-control room with said data, according to the situation of the said pipeline of said data monitoring.
The embodiment of the invention also provides a kind of RF transceiver, comprising:
The transmission requests module is used for the broadcast transmission data transfer request;
The response receiver module is used to receive the transfer of data response that second RF transceiver returns, and comprises at least in the said transfer of data response that this machine sign of said second RF transceiver identifies as purpose;
Identifier acquisition module is used for obtaining said purpose sign from said transfer of data response parsing;
The purpose judge module is used for judging according to this machine sign and said purpose sign whether second RF transceiver that returns said transfer of data response is data sink;
Data transmission blocks is used for when judging second RF transceiver that returns the response of said transfer of data and be data sink, sending data to said second RF transceiver.
The embodiment of the invention also provides a kind of pipeline supervisory control system, comprising:
A plurality of RF tags are laid along pipeline at interval, and are connected with transducer, and the detected parameters that is used to obtain transducer is as data;
The RF transceiver that a plurality of any embodiment of the present invention provided is laid along pipeline at interval, is used for to data sink transmission data;
Data sink is used for when receiving the data of RF transceiver transmission, said data being sent to master-control room, with the situation according to the said pipeline of said data monitoring.
Data transmission method provided by the invention, pipeline method for supervising, RF transceiver and system; Can utilize the transmission advantage of radio-frequency unit low cost, radio communication; And solved the problem of radio frequency transmission distance limit with point-to-point, directional transmissions, realized remote cheaply transfer of data.This technical scheme especially is useful in the monitoring aspect to remote pipeline, and operation conditions that can the overall monitor pipeline improves its functional reliability.
Description of drawings
Fig. 1 is the structural representation of pipeline supervisory control system in the prior art;
The flow chart of the data transmission method that Fig. 2 provides for the embodiment of the invention one;
The flow chart of the pipeline method for supervising that Fig. 3 provides for the embodiment of the invention two;
The structural representation of the RF transceiver that Fig. 4 provides for the embodiment of the invention three;
The structural representation of the pipeline supervisory control system that Fig. 5 provides for the embodiment of the invention five.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
The flow chart of the data transmission method that Fig. 2 provides for the embodiment of the invention one; This method is applicable to the system that comprises a plurality of RF transceivers; In this system, also comprise a data sink; This data sink can also be a RF transceiver, perhaps can be other devices that can receive data, and data sink is as the destination of transfer of data in the system.The method of present embodiment has realized through a plurality of RF transceivers step by step transfer of data to data sink.This method specifically comprises the steps:
In above-mentioned steps 210, first RF transceiver can be any RF transceiver that has data need be transferred to data sink in the system, and it is all identical that each will transmit the performed operation of first RF transceiver of data.Second RF transceiver is another or some RF transceivers that can receive data transfer request, and for example, other RF transceivers in the first RF transceiver signal cover or data sink all maybe be as second RF transceivers.The transfer of data response of returning has a plurality of, and it is identical that first RF transceiver is handled the operation of each transfer of data response, and present embodiment only describes from the angle of handling a transfer of data response.This machine sign of so-called second RF transceiver is a sign of this second RF transceiver of ability unique identification, and each RF transceiver all has this machine sign of setting.
In the above-mentioned steps 230; First RF transceiver can identify the relation of judging between self and second RF transceiver according to this machine sign and purpose; Thereby confirm whether second RF transceiver is the proper data sending direction, also promptly in one or more other RF transceivers, seek the correct direction that routes to data sink.So-called definite second RF transceiver is a data sink, can be that this second RF transceiver is data sink itself, also can be that second RF transceiver is for being connected to a RF transceiver of data sink.If judging all second RF transceivers that return response all is not data sink, then can gives tacit consent to this machine and be data sink.
In above-mentioned steps 240, confirmed the sending direction of data when first RF transceiver after, promptly can adopt the mode of directive sending to send the data to the second definite RF transceiver.The directive sending of RF transceiver can have multiple mode to realize.For example adopt directional antenna to send, perhaps, only can receive by the target receiver of setting through the programming Control data with the mode of filter software to the direction of setting.For example filter orientation through the sign or the user name of target receiver.
In above-mentioned steps 250, the role that each second RF transceiver that receives data promptly converts first RF transceiver into continues Data transmission.If data have transferred to data sink, this data sink can only know promptly that according to the parameter of this machine sign or other settings this machine is the transmission terminal point, thereby stops transfer of data.Perhaps; Data sink also can be carried out the operation of first RF transceiver; When seeking next second RF transceiver; Can judge according to the purpose sign in this machine sign and the transfer of data of the returning response and no longer include satisfactory second RF transceiver, promptly this machine is data sink, thereby stops transfer of data.
The technical scheme of present embodiment has realized transfer of data, and this method has especially outstanding advantage aspect low cost transmission data in big distance range.The signal transmitting and receiving of RF transceiver is limited in scope, and generally only can reach several kilometers, but the cost of RF transceiver is low, power consumption is few, possesses the cost advantage that extensively is provided with on a large scale.Present embodiment utilizes a plurality of RF transceivers step by step and directed point-to-pointly to specific upper reaches destination apparatus transmission data; Make data to be transferred to the data designated receiver under the condition at a distance, thereby realized long-distance transmissions data cheaply on a large scale.
In the technical scheme of present embodiment, whether first RF transceiver identifies second RF transceiver of judging the return data transmission response according to this machine sign and purpose is that following steps are preferably carried out in the operation of data sink:
Whether first RF transceiver relatively this machine sign if then second RF transceiver of definite return data transmission response be data sink, if not, then confirms this machine be data sink less than the purpose sign.
Technique scheme is come the direction of specified data transmission with the size of sign, scheme as stated, with this machine sign of data sink be set at maximum can realize a plurality of RF transceivers all with transfer of data to data sink.
In the practical application, can also adopt multiple mode to come the direction of specified data receiver.For example, relatively whether this machine sign identifies greater than purpose, if greater than, confirm that then this second RF transceiver is a data sink; Whether the upper reaches sign that perhaps, whether identifies for this machine according to concordance list search purposes sign is data sink with definite second RF transceiver; Again perhaps, can confirm whether second RF transceiver is data sink according to the function calculation formula of setting.
On the basis of technique scheme, preferably also comprise group identification in the transfer of data response, then before the purpose sign is obtained in the parsing from transfer of data responds of first RF transceiver; Also comprise: first RF transceiver is resolved and is obtained group identification; And whether the group identification that judge is separated out is consistent with this group of planes group id, if then continue to carry out subsequent operation; If not, then abandon this transfer of data response.
Technique scheme defines the scope that RF transceiver transmits data step by step with group identification, avoids the RF transceiver transfer of data confused with other groups.Adopt this technical scheme, in same transmission range, can have the RF transceiver of a plurality of groups to realize many data transfer paths.
Form to data transfer request and transfer of data response describes for example.Be provided with under the situation of group identification; The data transfer request form of first RF transceiver broadcasting can be " this is Reader xxx; group ID AA001 "; Wherein " xxx " can be the user name of RF transceiver, and " AA " is group identification, and " 001 " is this machine sign of first RF transceiver.The transfer of data response format that second RF transceiver returns can be " ack to reader xxx; I am relay YYY; group ID AA003 ", and wherein, " YYY " is the user name of second RF transceiver; " AA " is group identification, and " 003 " is this machine sign of second RF transceiver.It is thus clear that two RF transceivers belong to same group " AA ".
Embodiment two
The flow chart of the pipeline method for supervising that Fig. 3 provides for the embodiment of the invention two, this method are applicable to pipeline monitoring, especially are laid in the huge range, the pipeline of long-distance transmissions, for example the pipeline of transfer oil, natural gas etc.The method of present embodiment is similar with data transmission method provided by the invention, utilizes RF transceiver to realize.Specifically can be close to pipeline a plurality of RF transceivers are set piecemeal.RF transceiver can carry out long-distance transmissions to master-control room with the data that the sensor monitors pipeline obtains, thereby realizes the monitoring to pipeline.
The method of present embodiment comprises the steps:
In the above-mentioned steps 310, preferably at the transducer place RF tag is set, the detection storage that transducer is gathered from pipeline is RF tag.RF transceiver plays the effect of rf readers, reading of data from RF tag.Then before the image data, can also comprise from each the transducer RF tag that is provided with at interval along pipeline at each RF transceiver: the detected parameters that the transducer that the RF tag reception is connected provides is as data.
Each RF transceiver is as first RF transceiver, and the data transmission method that can adopt the embodiment of the invention to provide sends the data to data sink; The following operation of concrete execution:
Data sink can be arranged on the device of specific location such as RTU, and cellular network, satellite or the radio communication device modes such as (Radio Frequency Unit are called for short RFU) of can passing through is communicated by letter with master-control room.
The technical scheme of present embodiment utilizes cheaply that the radio-frequency receiving-transmitting technology realizes transfer of data, and has solved the problem of radio-frequency receiving-transmitting distance limit with the mode of point-to-point directional transmissions, in remote, realize orientation, point-to-point rf data transmits step by step.Transducer, RF tag and radio frequency receiver can be laid along pipeline on a large scale, thereby can interiorly on a large scale be similar to omnidistance monitoring to pipeline, have improved the reliability of pipeline transmission.
Embodiment three
The structural representation of the RF transceiver that Fig. 4 provides for the embodiment of the invention three, this RF transceiver comprises: transmission requests module 410, response receiver module 420, identifier acquisition module 430, purpose judge module 440 and data transmission blocks 450.Wherein, transmission requests module 410 is used for the broadcast transmission data transfer request; Response receiver module 420 is used to receive the transfer of data response that second RF transceiver returns, and comprises at least in the transfer of data response that this machine sign of second RF transceiver identifies as purpose; Identifier acquisition module 430 is used for obtaining the purpose sign from transfer of data response parsing; Purpose judge module 440 is used for judging according to this machine sign and purpose sign whether second RF transceiver of return data transmission response is data sink; Data transmission blocks 450 is used for when second RF transceiver of judging the return data transmission response is data sink, sends data to second RF transceiver.
The RF transceiver of present embodiment possesses the corresponding function module of carrying out data transmission method of the present invention as first RF transceiver; Seek second radio frequency receiver of confirming to transfer to data sink in a plurality of RF transceivers in can being implemented on a large scale, thereby through the point-to-point realization transfer of data that sends step by step.
On the basis of technique scheme, this RF transceiver preferably also comprises: data acquisition module 460 and/or data reception module 470.Wherein, data acquisition module 460 is used for based on RF-wise from the RF tag image data, and data acquisition module 460 links to each other respectively with data transmission blocks 450 with transmission requests module 410; Data reception module 470 is used for when receiving data transfer request; The return data transmission response; At least comprise in the transfer of data response that this machine sign as the purpose sign, then receives data, data reception module 470 also links to each other respectively with data transmission blocks 450 with transmission requests module 410.
When only comprising data acquisition module, this RF transceiver can be used as rf readers and uses, and is used for image data, and transmits data to second RF transceiver.
When only comprising data reception module, this RF transceiver can be described as rf repeater again, has the function of first RF transceiver and second RF transceiver concurrently, is used between distance two RF transceivers far away, transmitting data.The data that rf repeater receives can collect by a plurality of data readers, so rf repeater preferably has bigger memory capacity, can be that 5-10 is doubly to the memory capacity of general rf readers.The signal transmitting boundary of rf repeater can be provided with as required, for example from 500 meters to several kilometers.Rf repeater can be different RF transceivers with rf readers; Rf readers mainly is responsible for image data; Possibly need transmitting control commands to give RF tag and carry out the anticollision strategy; Then give rear end (Back end), just be transmitted to rf repeater or data sink data transmission.Rf repeater is mainly used in relaying and transmits data, realizes point-to-point wireless data transmission between the rf readers, also can possess the function of storing data and uploading data.
When possessing data acquisition module and data reception module simultaneously, this RF transceiver possesses the function of rf readers and rf repeater simultaneously.
Embodiment four
The embodiment of the invention four can be the basis with embodiment three, and difference is that this RF transceiver also comprises: solar cell and solar panels, and this solar cell is through the solar panels generating, and solar cell is used for supplying power to each RF transceiver.The RF transceiver that then is arranged on open-air power supply difficulty can have for a long time continued power cheaply.
These solar panels preferably enclose the formation housing, are located at the outside of RF transceiver, can either protect RF transceiver to avoid outside natural environment damage, can obtain bigger light-receiving area with smaller size smaller again.The light-receiving area of solar panels can be provided with according to the power supply needs, for example outside the housing of RF transceiver, connects extra solar panels.
Embodiment five
The structural representation of the pipeline supervisory control system that Fig. 5 provides for the embodiment of the invention five, this pipeline supervisory control system comprises: a plurality of RF tag 510, RF transceiver 520 and a data receiver 530 that a plurality of any embodiment of the present invention provided.Wherein, a plurality of RF tags 510 are laid along pipeline 540 at interval, and are connected with transducer, and the detected parameters that is used to obtain transducer is as data; A plurality of RF transceivers 520 are laid along pipeline 540 at interval, are used for to data sink 530 transmission data; Data sink 530 is used for when receiving the data of RF transceiver 520 transmissions, data being sent to master-control room, with the situation according to data monitoring pipeline 540.
RF tag can be integrated in the data that sensor internal obtains sensor acquisition, as is integrated in the sensor internal of signal piping flow.RF tag also can be connected to come image data with transducer, for example is connected with the transducer of gathering data such as flow, temperature or pressure.The data of sensor acquisition can directly store in the RF tag, then are transmitted to rf readers according to preset program compartment of terrain.
In the technical scheme of present embodiment, transducer, RF tag and RF transceiver have been constituted the wireless network to the pipeline monitoring, can monitor transfer conduit, guaranteed its reliability service such as gasoline, natural gas, chemicals or water.Because technique scheme can be with the remote wireless data transmission of implemented with low cost; So suitable laying on a large scale; RF transceiver can be whenever just laid a place at a distance from several kilometers, even can omnidistance ground monitored pipeline, has solved prior art only in the problem of part locality monitored pipeline.Transducer does not need the adjacent specific place to be provided with, and can transmit data through RF tag and RF transceiver, thereby has cancelled the restriction that transducer is provided with the position.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
1. a data transmission method is characterized in that, comprising:
The first RF transceiver broadcast transmission data transfer request, and receive the transfer of data response that second RF transceiver returns, comprise at least in the said transfer of data response that this machine sign of said second RF transceiver identifies as purpose;
Said first RF transceiver is resolved from said transfer of data response and is obtained said purpose sign;
Said first RF transceiver judges according to this machine sign and said purpose sign whether second RF transceiver that returns said transfer of data response is data sink, if then send data to said second RF transceiver;
Said second RF transceiver repeats the operation of first RF transceiver, when judging this machine according to this machine sign and be data sink, stops transfer of data.
2. data transmission method according to claim 1 is characterized in that, said first RF transceiver judges according to this machine sign and said purpose sign whether second RF transceiver that returns said transfer of data response is that data sink comprises:
Said first RF transceiver relatively this machine sign whether less than said purpose sign, if second RF transceiver of then confirming to return said transfer of data response is a data sink, if not, confirms that then this machine is a data sink.
3. data transmission method according to claim 1 is characterized in that, also comprises group identification in the said transfer of data response, then before said purpose sign is obtained in the parsing from said transfer of data responds of said first RF transceiver, also comprises:
Said first RF transceiver is resolved and is obtained group identification, and whether the group identification that judge is separated out is consistent with this group of planes group id, if, then continue to carry out subsequent operation, if not, then abandon this transfer of data response.
4. a pipeline method for supervising is characterized in that, comprising:
Each RF transceiver is image data from each the transducer RF tag that is provided with at interval along pipeline;
Each said RF transceiver adopts the arbitrary described data transmission method of claim 1～3 that said data are sent to data sink as first RF transceiver;
Said data sink is sent to master-control room with said data, according to the situation of the said pipeline of said data monitoring.
5. pipeline method for supervising according to claim 4; It is characterized in that; Before the image data, also comprise from each the transducer RF tag that is provided with at interval along pipeline at each RF transceiver: the detected parameters that the transducer that said RF tag reception is connected provides is as said data.
6. a RF transceiver is characterized in that, comprising:
The transmission requests module is used for the broadcast transmission data transfer request;
The response receiver module is used to receive the transfer of data response that second RF transceiver returns, and comprises at least in the said transfer of data response that this machine sign of said second RF transceiver identifies as purpose;
Identifier acquisition module is used for obtaining said purpose sign from said transfer of data response parsing;
The purpose judge module is used for judging according to this machine sign and said purpose sign whether second RF transceiver that returns said transfer of data response is data sink;
Data transmission blocks is used for when judging second RF transceiver that returns the response of said transfer of data and be data sink, sending data to said second RF transceiver.
7. RF transceiver according to claim 6 is characterized in that, also comprises:
Data acquisition module is used for based on RF-wise from the RF tag image data; And/or
Data reception module is used for when receiving data transfer request, and the return data transmission response comprises at least in the said transfer of data response that this machine sign as the purpose sign, then receives data.
8. according to claim 6 or 7 described RF transceivers, it is characterized in that, also comprise: solar cell and solar panels, said solar cell is through the solar panels generating, and said solar cell is used for supplying power to each RF transceiver.
9. RF transceiver according to claim 8 is characterized in that: said solar panels enclose the formation housing, are located at the outside of said RF transceiver.
10. a pipeline supervisory control system is characterized in that, comprising:
A plurality of RF tags are laid along pipeline at interval, and are connected with transducer, and the detected parameters that is used to obtain transducer is as data;
The arbitrary described RF transceiver of a plurality of claims 6～9 is laid along pipeline at interval, is used for to data sink transmission data;
Data sink is used for when receiving the data of RF transceiver transmission, said data being sent to master-control room, with the situation according to the said pipeline of said data monitoring.
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| US13/225,514 US20120056710A1 (en) | 2010-09-06 | 2011-09-05 | Data transmission method, pipeline monitoring method, rf transceiver and system |
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| US38031410P | 2010-09-06 | 2010-09-06 | |
| US61/380,314 | 2010-09-06 |
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| CN105548266A (en) * | 2015-12-19 | 2016-05-04 | 成都尼奥尔电子科技有限公司 | A wireless natural gas detector based on a notch filter circuit |
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