CN102469077A - Protocol conversion method of data, gateway and system - Google Patents
Protocol conversion method of data, gateway and system Download PDFInfo
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- CN102469077A CN102469077A CN2010105386895A CN201010538689A CN102469077A CN 102469077 A CN102469077 A CN 102469077A CN 2010105386895 A CN2010105386895 A CN 2010105386895A CN 201010538689 A CN201010538689 A CN 201010538689A CN 102469077 A CN102469077 A CN 102469077A
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Abstract
The invention is applied to the communication field. The invention provides a protocol conversion method of data, a gateway and a system. The method comprises the following steps: in an uplink direction: receiving a data packet of a protocol A; taking all data in the data packet as a payload of a protocol B data packet, wherein, the payload is packaged as a data packet of a protocol B; in a downlink direction: receiving the protocol B data packet, and taking the payload in the protocol B data packet as a protocol A data packet. A technical scheme provided in the invention has the advantages of low cost and convenient maintenance.
Description
Technical field
The invention belongs to the communications field, relate in particular to a kind of method for converting protocol, gateway and system of data.
Background technology
In Industry Control and automation, there are various products based on different communication technologies and communications protocol in building automatic and communication field at present.The agreement of transmitting between each product at present has nothing in common with each other, so complete effective and powerful automation or various often products of communication system and subsystem is integrated, owing to the characteristics of each product and subsystem; The agreement that each product and subsystem are used has nothing in common with each other, and at this moment with regard to needing gateway (Gateway) that the data between heterogeneous networks and the agreement are changed, reaches the protocol conversion of data; Suppose that the agreement before the conversion is agreement A; Agreement after the conversion is agreement B, in the time need the data transaction of agreement A being become the data of agreement B, the method for employing can for: behind the packet that receives agreement A; This packet is converted to the packet of agreement B form; Its concrete method does, extracts the payload (payload) in the agreement A packet, with (the i.e. valid data of this data packet transmission of the payload in the agreement A packet; Data except heading), be packaged into the packet of agreement B as the payload in the agreement B packet.
According to the technical scheme that prior art provided, find to exist in the prior art following technical problem:
The method of the technical scheme that prior art provides is in each gateway, the payload in the agreement A packet to be packed as the payload in the agreement B packet; This mode needs each gateway can both resolve two kinds of different agreements; Not only hardware resource is required high; And will carry out software configuration and configuration to gateway in use, the local member's of any system increase and decrease and variation all need be carried out again configuration and configuration to corresponding gateway.The installation and maintenance cost is higher.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method for converting protocol of data, and the method that is intended to solve prior art need be resolved the cost that two kinds of different protocol bring in each gateway high, safeguards inconvenient problem.
The embodiment of the invention is achieved in that the present invention provides a kind of method for converting protocol of data, and said method comprises the steps:
At up direction: the packet that receives agreement A;
All data in the said packet are packaged into the packet of agreement B as the payload of agreement B packet;
At down direction: receive agreement B packet, with the payload in the agreement B packet as agreement A packet.
The present invention also provides the method for converting protocol of data, and said method comprises:
At up direction:
Receive agreement B packet, the payload of unloading agreement B packet;
Payload unloading with agreement A packet in this payload; Then the payload of agreement A packet is converted or is mapped to the equivalent load of agreement B, this equivalence load is packaged into new agreement B packet as the payload of new agreement B packet;
At down direction:
Receive agreement B packet, the payload of unloading agreement B packet; This payload is changed or is mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet, all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet.
The present invention also provides a kind of transparent gateway, and said gateway comprises:
Up receiving element is used to receive the packet of agreement A;
Up converting unit is used for all data in the said packet are packaged into as the payload of agreement B packet the packet of the agreement B of equivalence;
Descending receiving element is used to receive agreement B packet;
The down conversion unit is used for payload with agreement B packet as agreement A packet.
The present invention also provides a kind of lexical or textual analysis gateway, and said gateway comprises:
Up receiving element is used to receive agreement B packet,
Up unloading unit is used to unload the payload of agreement B packet;
Said up unloading unit also is used for the payload unloading with this payload agreement A packet,
Up conversion encapsulation unit is used for the payload of agreement A packet is converted to or is mapped to the equivalent load of agreement B, and this equivalence load is packaged into the new protocol data bag of purpose as the payload of new agreement B packet;
Descending receiving element is used to receive agreement B packet,
Descending unloading unit is used to unload the payload of agreement B packet;
The down conversion encapsulation unit; Be used for this payload is changed or is mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet, again all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet.
The present invention also provides a kind of protocol conversion system of data, and said system comprises: a plurality of transparent gateways and at least one lexical or textual analysis gateway;
At up direction:
Said transparent gateway is used for behind the packet that receives agreement A, and all data of the packet of agreement A are packaged into agreement B packet as the payload of agreement B packet, and the agreement B packet after the encapsulation is sent to the lexical or textual analysis gateway;
Said lexical or textual analysis gateway is used to unload the payload of the agreement B packet after the encapsulation; Convert or be mapped to the payload of agreement A packet in this payload the equivalent load of agreement B to, this equivalence load is packaged into new agreement B packet as the payload of new agreement B packet;
At down direction:
Said lexical or textual analysis gateway is used to receive agreement B packet, the payload of unloading agreement B packet; This payload is changed or is mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet; Again all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet, and this new agreement B packet is sent to transparent gateway;
The payload of the agreement B packet that the unloading of said transparent gateway is new, and with this payload as agreement A packet.
The embodiment of the invention compared with prior art; Beneficial effect is: technical scheme of the present invention is when carrying out the protocol conversion of data; Be that the packet of the whole agreement A payload as agreement B packet is encapsulated, so this method does not need analysis protocol A, promptly this method only needs analysis protocol B and maintenance agreement B; So it has low, the easy to maintenance advantage of cost.
Description of drawings
Fig. 1 is the flow chart of the method for converting protocol of a kind of data provided by the invention at up direction;
Fig. 2 is the flow chart of the method for converting protocol of a kind of data provided by the invention at down direction;
Fig. 3 is the flow chart of the method for converting protocol of another kind of data provided by the invention at up direction;
Fig. 4 is the flow chart of the method for converting protocol of another kind of data provided by the invention at down direction;
Fig. 5 is the structure chart of a kind of transparent gateway provided by the invention;
Fig. 6 is the structure chart of a kind of lexical or textual analysis gateway provided by the invention;
Fig. 7 is the structure chart of the protocol conversion system of a kind of data provided by the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention provides a kind of method for converting protocol of data, and this method is accomplished by transparent gateway, and this method is as shown in Figure 1 in the step of up direction, comprising:
The packet of S11, reception agreement A;
S12, all data in the above-mentioned packet are packaged into the packet of agreement B as the payload of agreement B packet.
Need to prove that all data in the above-mentioned packet can comprise: the header of packet and payload.
Optional, said method can also comprise after S12: the agreement B packet after will encapsulating sends in the corresponding network of agreement B.
In addition, this method is as shown in Figure 2 in the step of down direction, specifically comprises:
S21, reception agreement B packet;
S22, with the payload in the agreement B packet as agreement A packet.
Method provided by the invention is when carrying out the protocol conversion of data; Be that the packet of the whole agreement A payload as agreement B packet is encapsulated; So this method does not need analysis protocol A; Promptly this method only needs analysis protocol B and maintenance agreement B, so it has low, the easy to maintenance advantage of cost.
The present invention also provides the method for converting protocol of another kind of data, and this method is accomplished by the lexical or textual analysis gateway, and this method is as shown in Figure 3 in the step of uplink method, comprising:
S31, reception agreement B packet, the payload of unloading agreement B packet;
S32, with the unloading of the payload of agreement A packet in this payload, then the payload of agreement A packet is converted or is mapped to the equivalent load of agreement B;
S33, should equivalence load be packaged into new purpose protocol data bag as the payload of new agreement B packet.
In addition, this method is as shown in Figure 4 in the step of down direction, comprising:
S41, reception agreement B packet, the payload of unloading agreement B packet;
S42, with the conversion of this payload or be mapped to the equivalent load of agreement A, this equivalence load is dressed up agreement A packet as the payload of agreement A packet;
S43, all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet.
Need to prove that above-mentioned up direction and down direction only are to define voluntarily for the transmission of distinguishing packet or receive mode, the data packet transmission mode of above-mentioned up direction and down direction also can adopt following method.Because the transmission of this packet all is in transparent gateway and lexical or textual analysis gateway, to transmit, subordinate's method can be defined as packet transmits data packets in transparent gateway and lexical or textual analysis gateway: parallel direction.
Parallel direction:
The payload of agreement A packet as new agreement B packet; By the channel of agreement B new agreement B data packet transmission to releasing the view gateway; Unload the payload of new agreement B packet and be the raw payload of agreement A packet releasing the view gateway; Analytic mappings becomes the equivalent load of agreement B, is transferred to the equipment that another one belongs to agreement B territory then.
Also the payload of agreement A packet as new agreement B packet, by the channel of agreement B new agreement B data packet transmission to another one (transparent) gateway, be reduced into agreement A packet to the unloading of the payload of new agreement B packet then.
The method for converting protocol of another kind of data provided by the invention has been supported the realization of the method for converting protocol of above-mentioned data, makes above-mentioned transparent gateway have low, the easy to maintenance advantage of cost.
The present invention also provides a kind of transparent gateway, and this transparent gateway is as shown in Figure 5, comprising:
Up receiving element 51 receives the packet of agreement A;
Up converting unit 52 is packaged into all data in the above-mentioned packet packet of the agreement B of equivalence as the payload of agreement B packet;
Descending receiving element 53 receives agreement B packet;
Down conversion unit 54 with the payload in the agreement B packet as agreement A packet
Transparent gateway provided by the invention is when carrying out the protocol conversion of data; Be that the packet of the whole agreement A payload as agreement B packet is encapsulated; So this method does not need analysis protocol A; Promptly this method only needs analysis protocol B and maintenance agreement B, so it has low, the easy to maintenance advantage of cost.
The present invention also provides a kind of lexical or textual analysis gateway, and this lexical or textual analysis gateway is as shown in Figure 6, comprising:
Up receiving element 61 receives agreement B packet,
The payload of up unloading unit 62 unloading agreement B packets;
Up unloading unit 62 also unloads the payload of agreement A packet in this payload,
Up conversion encapsulation unit 63 converts or is mapped to the payload of agreement A packet the equivalent load of agreement B to, and this equivalence load is packaged into the new protocol data bag of purpose as the payload of new agreement B packet;
Descending receiving element 64 receives agreement B packet,
The payload of descending unloading unit 65 unloading agreement B packets;
Down conversion encapsulation unit 66 is changed this payload or be mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet, again all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet.
Need to prove that above-mentioned lexical or textual analysis gateway can be positioned at computer (PC), also can be positioned at other logical device, for example server etc. can certainly independently be provided with entity lexical or textual analysis gateway, and the present invention does not limit to the concrete manifestation form of this lexical or textual analysis gateway.
Lexical or textual analysis gateway provided by the invention has been supported the data protocol conversion of above-mentioned transparent gateway, makes transparent gateway have low, the easy to maintenance advantage of cost.
The present invention also provides a kind of protocol conversion system of data, and the topology diagram of this system is as shown in Figure 7, need to prove, the radio node among Fig. 7 can be for sending the equipment of agreement A packet to transparent gateway; This system comprises: a plurality of transparent gateways and at least one lexical or textual analysis gateway;
Wherein, at up direction:
Transparent gateway all data of the packet of agreement A are packaged into agreement B packet as the payload of agreement B packet, and the agreement B packet after will encapsulating sends to the lexical or textual analysis gateway behind the packet that receives agreement A;
The payload of the agreement B packet after the lexical or textual analysis gateway unloading encapsulation; Convert or be mapped to the payload of agreement A packet in this payload the equivalent load of agreement B to, this equivalence load is packaged into new purpose protocol data bag as the payload of new agreement B packet;
At down direction:
The lexical or textual analysis gateway receives agreement B packet, the payload of unloading agreement B packet; This payload is changed or is mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet; Again all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet, and this new agreement B packet is sent to transparent gateway;
The payload of the agreement B packet that transparent gateway unloading is new, and with this payload as agreement A packet.
Need to prove that the above-mentioned concrete grammar that payload is converted to the packet of purpose form is a prior art, repeats no more here.
Need to prove, preferred two of the number of above-mentioned lexical or textual analysis gateway, one of them is the normal lexical or textual analysis gateway that uses, another is subsequent use lexical or textual analysis gateway.Certainly the number of lexical or textual analysis gateway can also be 1, perhaps when the resource of releasing the view gateway is not enough, also can use a plurality of (more than 2).In general the number of lexical or textual analysis gateway is less than the number of total gateway.
In addition, preferred, the quantity of this intrasystem lexical or textual analysis gateway can be less than the quantity of transparent gateway.When the advantage of the packet of the agreement B that sends through a plurality of transparent gateways of lexical or textual analysis gateway management (i.e. conversion) is, when setting up, as long as carry out the configuration configuration to releasing the view gateway in system.When change and increase and decrease take place the equipment in agreement A territory or the agreement B territory, only need safeguard that the lexical or textual analysis gateway gets final product, and need not safeguard transparent gateway.To its replacing also is replacing physically, need not be configured after the replacing.So it has easy to maintenance, the advantage that maintenance cost is low.It is non-existent that transparent gateway " seems " in system in logic.
Transparent gateway in the system provided by the invention is when carrying out the protocol conversion of data; Be that the packet of the whole agreement A payload as agreement B packet is encapsulated; So transparent gateway does not need analysis protocol A; Promptly this transparent gateway only needs analysis protocol B and maintenance agreement B, so it has low, the non-maintaining advantage of cost.
It should be noted that said apparatus and system, each included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize function corresponding; In addition, the concrete title of each functional unit also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition; One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Corresponding program can be stored in a kind of computer-readable recording medium; The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
In sum, technical scheme provided by the invention has low, the easy to maintenance advantage of cost.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for converting protocol of data is characterized in that, said method comprises the steps:
At up direction: the packet that receives agreement A;
All data in the said packet are packaged into the packet of agreement B as the payload of agreement B packet;
At down direction: receive agreement B packet, with the payload in the agreement B packet as agreement A packet.
2. method according to claim 1 is characterized in that, all data in the said packet comprise: the header of said packet and payload.
3. the method for converting protocol of data is characterized in that, said method comprises:
At up direction:
Receive agreement B packet, the payload of unloading agreement B packet;
Payload unloading with agreement A packet in this payload; Then the payload of agreement A packet is converted or is mapped to the equivalent load of agreement B, this equivalence load is packaged into new agreement B packet as the payload of new agreement B packet;
At down direction:
Receive agreement B packet, the payload of unloading agreement B packet; This payload is changed or is mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet, all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet.
4. method according to claim 3 is characterized in that, all data of said agreement A packet comprise:
The header of agreement A packet and payload.
5. a transparent gateway is characterized in that, said gateway comprises:
Up receiving element is used to receive the packet of agreement A;
Up converting unit is used for all data in the said packet are packaged into as the payload of agreement B packet the packet of the agreement B of equivalence;
Descending receiving element is used to receive agreement B packet;
The down conversion unit is used for payload with agreement B packet as agreement A packet.
6. a lexical or textual analysis gateway is characterized in that, said gateway comprises:
Up receiving element is used to receive agreement B packet,
Up unloading unit is used to unload the payload of agreement B packet;
Said up unloading unit also is used for the payload unloading with this payload agreement A packet,
Up conversion encapsulation unit is used for the payload of agreement A packet is converted to or is mapped to the equivalent load of agreement B, and this equivalence load is packaged into the new protocol data bag of purpose as the payload of new agreement B packet;
Descending receiving element is used to receive agreement B packet,
Descending unloading unit is used to unload the payload of agreement B packet;
The down conversion encapsulation unit; Be used for this payload is changed or is mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet, again all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet.
7. the protocol conversion system of data is characterized in that, said system comprises: a plurality of transparent gateways and at least one lexical or textual analysis gateway;
At up direction:
Said transparent gateway is used for behind the packet that receives agreement A, and all data of the packet of agreement A are packaged into agreement B packet as the payload of agreement B packet, and the agreement B packet after the encapsulation is sent to the lexical or textual analysis gateway;
Said lexical or textual analysis gateway is used to unload the payload of the agreement B packet after the encapsulation; Convert or be mapped to the payload of agreement A packet in this payload the equivalent load of agreement B to, this equivalence load is packaged into new purpose protocol data bag as the payload of new agreement B packet;
At down direction:
Said lexical or textual analysis gateway is used to receive agreement B packet, the payload of unloading agreement B packet; This payload is changed or is mapped to the equivalent load of agreement A; This equivalence load is dressed up agreement A packet as the payload of agreement A packet; Again all data of agreement A packet are packaged into new agreement B packet as the payload of new agreement B packet, and this new agreement B packet is sent to transparent gateway;
The payload of the agreement B packet that the unloading of said transparent gateway is new, and with this payload as agreement A packet.
8. system according to claim 7 is characterized in that, the number of said at least one lexical or textual analysis gateway is: 1,2 or 3.
9. system according to claim 7 is characterized in that the number of said lexical or textual analysis gateway is less than the number of said transparent gateway.
10. system according to claim 8 is characterized in that, when said lexical or textual analysis gateway was 2, one was the normal lexical or textual analysis gateway that uses, and another is subsequent use lexical or textual analysis gateway.
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| CN2010105386895A CN102469077A (en) | 2010-11-10 | 2010-11-10 | Protocol conversion method of data, gateway and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105386895A CN102469077A (en) | 2010-11-10 | 2010-11-10 | Protocol conversion method of data, gateway and system |
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| CN102469077A true CN102469077A (en) | 2012-05-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298196A (en) * | 2014-09-26 | 2015-01-21 | 国家电网公司 | Intelligent meter library multi-protocol adaptation control method and system |
| CN106357590A (en) * | 2015-07-15 | 2017-01-25 | 艾默生网络能源系统北美公司 | Network protocol conversion system, network protocol converter and network protocol conversion method |
| CN108206811A (en) * | 2016-12-19 | 2018-06-26 | 上海诺基亚贝尔股份有限公司 | For between IoT equipment across the method, apparatus of protocol communication and IoT systems |
| CN110430210A (en) * | 2019-08-14 | 2019-11-08 | 大连理工大学 | A kind of protocol conversion apparatus and its method for converting protocol based on colony intelligence network |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101068198A (en) * | 2007-01-29 | 2007-11-07 | 当代天启技术（北京）有限公司 | Method, device and system for transmitting information in building system |
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2010
- 2010-11-10 CN CN2010105386895A patent/CN102469077A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068198A (en) * | 2007-01-29 | 2007-11-07 | 当代天启技术（北京）有限公司 | Method, device and system for transmitting information in building system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298196A (en) * | 2014-09-26 | 2015-01-21 | 国家电网公司 | Intelligent meter library multi-protocol adaptation control method and system |
| CN106357590A (en) * | 2015-07-15 | 2017-01-25 | 艾默生网络能源系统北美公司 | Network protocol conversion system, network protocol converter and network protocol conversion method |
| CN108206811A (en) * | 2016-12-19 | 2018-06-26 | 上海诺基亚贝尔股份有限公司 | For between IoT equipment across the method, apparatus of protocol communication and IoT systems |
| CN110430210A (en) * | 2019-08-14 | 2019-11-08 | 大连理工大学 | A kind of protocol conversion apparatus and its method for converting protocol based on colony intelligence network |
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Application publication date: 20120523 |