CN102438012A - Protocol communication method and system thereof - Google Patents
Protocol communication method and system thereof Download PDFInfo
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- CN102438012A CN102438012A CN2011103613418A CN201110361341A CN102438012A CN 102438012 A CN102438012 A CN 102438012A CN 2011103613418 A CN2011103613418 A CN 2011103613418A CN 201110361341 A CN201110361341 A CN 201110361341A CN 102438012 A CN102438012 A CN 102438012A
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Abstract
The invention discloses a protocol communication method and a system thereof. The method comprises: A, a user invoking service type is received and a command of an operation request is sent to terminal equipment, so that a protocol frame carrying an only command number is generated; B, the protocol frame is added to a sending queue so as to send the protocol frame; C, a protocol frame that is sent by thread reception is received and is added to a receiving queue; D, parsing is carried out on the received protocol frame; E, according to the parsed protocol frame, it is determined whether verification of the terminal equipment is done successfully; if so, a step of F1 is executed; and if not, a step of F2 is executed; F1, the parsed protocol frame is added to a reception list and a step G is turned to; F2, first replying data are generated and the step A is returned; and G, second replying data having a same terminal coding number and a same command number is searched so as to return the second replying data to the user. According to the invention, an only command number is added to a protocol frame so as to realize verification of terminal equipment; therefore, a problem that there is disordering between a user request and reception and sending of the protocol frame is solved. Moreover, it is easy to track the user request and protocol parsing also becomes simple.
Description
Technical field
The present invention relates to the communication transmission field, relate in particular to a kind of agreement means of communication and system.
Background technology
Along with the fast development of terminal technology such as transducer, supervisory control system and/or control system are more and more carries out alternately with host computer (for example PC, mobile phone or the like), and this just must relate to the contents such as transmission and parsing of agreement.
At present, the form of the protocol frame of employing comprises: initial code, terminal coding, command word, data length, data field, check code and end code.As shown in table 1.
Table 1
| Initial code | The terminal coding | Command word | Data length | Data field | Check code | End code |
Following mask body is introduced the effect of various piece:
Initial code is used to define the starting position of each frame;
Terminal coding: to unique coding of operated terminal equipment;
Command word: be used for the action type that the district office carries out;
Data length: the length that is used to represent data field;
Data field: the True Data of service needed;
Check code: the correctness that is used for this protocol frame of verification;
End code: the end position that is used to define each frame.
When adopting above-mentioned protocol frame, it is according to terminal coding and the criterion of command word as one-time request, promptly all is as ordering the foundation of whether sending success and repeating transmission each time alternately by terminal coding and command word; If same terminal equipment is sent a plurality of identical orders, and program employing at this moment is that multithreading is handled (order that afterwards receives promptly can occur handling earlier, rather than press the first treatment mechanism of reception earlier); Add reasons such as network, it is overtime that first requested operation will appear in main website, and then requested operation obtains replying very soon; Then still receive the answer of back requested operation; At this moment, the user generally filters this answer, because in two requests; First is overtime, and second is replied.
Explanation the problems referred to above below cite a plain example; For example there are user A, user B, user C three people to send the terminal through main website to terminal equipment respectively now and are encoded to " HT0001 "; Command word is the request of " 10H "; Suppose the order by user A, user B, user C, the scheme of implementing prior art just following situation might occur:
1) receives first command and reply, and replied to user C;
2) receive second command and reply, and replied to user B;
3) at this moment, user A is pointed out " request timed out " because of request timed out;
4) then, receive the 3rd order and reply, thus the time do not had untreated request, therefore this answer is abandoned.
Summary of the invention
The technical problem that the present invention will solve is, to the defective of prior art user request with protocol frame transmitting-receiving entanglement, the agreement means of communication and the system of a kind of user's of solution request with protocol frame transmitting-receiving entanglement problem is provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of agreement means of communication, said method comprising the steps of:
A. receive the user and call type of service, carry the protocol frame of unique command number, wherein, order when said type of service comprises the school with generation to terminal equipment transmission solicit operation order;
B. the protocol frame that is generated is added into transmit queue, to send protocol frame to terminal equipment;
C. receiving thread receives the protocol frame that is sent, and it is added into the reception formation;
D. the protocol frame after receiving is resolved;
E. judge whether verification succeeds of terminal equipment according to the protocol frame after resolving, if, execution in step F1 then, if not, execution in step F2 then;
F1. the protocol frame after will resolving is added into the reception chained list, goes to step G;
F2. generate first and reply data, return steps A;
G. in this reception chained list, search the second answer data, be back to the user to reply data with said second with identical terminal coding and command number.
In the agreement means of communication of the present invention, said step B is further comprising the steps of:
B1. judge that whether transmit queue is empty, if, execution in step B21 then, if not, execution in step B22 then;
B21. transmit queue is in wait state, and wakes the transmission thread up, returns step B1;
B22. from this transmit queue, obtain protocol frame, and send this protocol frame.
In the agreement means of communication of the present invention, said step G specifically may further comprise the steps:
G1. judge whether to find said second and reply data, if, execution in step G21 then, if not, execution in step G22 then;
G21. reply data with said second and be back to the user, step finishes;
G22. judge whether protocol frame is overtime, if then execution in step G3 if not, then returns step G1;
G3. return overtime prompt command, return step F 1.
In the agreement means of communication of the present invention, the mode of terminal equipment verification comprises in said step e:
Mode one: through the command number verification;
Mode two: through terminal coding and command word combination verification;
Mode three: pass-through mode one combines verification with mode two.
In the agreement means of communication of the present invention, the form of said protocol frame comprises initial code, command number, terminal coding, command word, data length, data field, check code and end code.
The present invention also constructs a kind of protocol communication system; Said system comprise successively the generation module that connects, sending module, receiver module, parsing module, judge module, the interpolation module that is connected with said judge module, the answer module that is connected with said generation module with said judge module respectively and be connected with said interpolation module return module; Wherein
Generation module is used to receive the user and calls type of service to terminal equipment transmission solicit operation order, carries the protocol frame of unique command number with generation, wherein, orders when said type of service comprises the school;
Sending module is used for the protocol frame that is generated is added into transmit queue, to send protocol frame to terminal equipment;
Receiver module is used for receiving thread and receives the protocol frame that is sent, and it is added into the reception formation;
Parsing module is used for the protocol frame after receiving is resolved;
Judge module is used for judging whether verification succeeds of terminal equipment according to the protocol frame after resolving;
Add module, the protocol frame after being used for result at said judge module and being will resolving when being is added into the reception chained list;
Reply module, the result who is used at said judge module is that data are replied in generation first when denying;
Return module, be used for searching the second answer data, be back to the user to reply data with said second with identical terminal coding and command number at this reception chained list.
In protocol communication system of the present invention, said sending module comprises first judging unit, wait unit and the acquiring unit that connects successively, wherein,
First judging unit is used to judge whether transmit queue is empty;
Wait for the unit, be used for transmit queue being set when being and be in wait state, and wake the transmission thread up in the result of said first judging unit;
Acquiring unit is used for not obtaining protocol frame from this transmit queue in the result of said first judging unit for the time, and sends this protocol frame.
In protocol communication system of the present invention, saidly return that module comprises second judging unit, the answer unit that is connected with said second judging unit respectively and the 3rd judging unit and the overtime unit that is connected with said the 3rd judging unit, wherein,
Second judging unit is used to judge whether to find said second and replys data;
Reply the unit, be used for the said second answer data being back to the user when being in the result of said second judging unit;
The 3rd judging unit is used for judging whether protocol frame is overtime in the result of said second judging unit for not the time;
Overtime unit is used for returning overtime prompt command when being in the result of said the 3rd judging unit.
In protocol communication system of the present invention, the mode of terminal equipment verification comprises in said judge module:
Mode one: through the command number verification;
Mode two: through terminal coding and command word combination verification;
Mode three: pass-through mode one combines verification with mode two.
In protocol communication system of the present invention, the form of said protocol frame comprises initial code, command number, terminal coding, command word, data length, data field, check code and end code.
The technical scheme of embodiment of the present invention; Has following beneficial effect: realize verification to terminal equipment through protocol frame being increased a unique command number; Thereby solve the problem of user's request and protocol frame transmitting-receiving entanglement; The technical scheme of embodiment of the present invention, not only user's request tracking is easier, and protocol analysis is simpler.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the flow chart of the agreement means of communication of the present invention;
Fig. 2 is the flow chart of agreement means of communication step B of the present invention;
Fig. 3 is the flow chart of agreement means of communication step G of the present invention;
Fig. 4 is the structural representation of protocol communication system of the present invention;
Fig. 5 is the structural representation of sending module in the protocol communication system of the present invention;
Fig. 6 is the structural representation that returns module in the protocol communication system of the present 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.
See also Fig. 1, Fig. 1 is the flow chart of the agreement means of communication of the present invention, and is as shown in Figure 1, said method comprising the steps of:
In steps A, receive the user and call type of service to terminal equipment transmission solicit operation order, carry the protocol frame of unique command number with generation, wherein, when comprising the school, said type of service orders.
Preferably, the form of said protocol frame comprises initial code, command number, terminal coding, command word, data length, data field, check code and end code.Should be noted that in the present embodiment the form of this protocol frame is shown in table 2 or table 3, those skilled in the art should understand, and it is interchangeable that command number and terminal are coded in putting in order of inside in the form of this protocol frame, repeats no more at this.
Table 2
| Initial code | Command number | The terminal coding | Command word | Data length | Data field | Check code | End code |
Table 3
| Initial code | The terminal coding | Command number | Command word | Data length | Data field | Check code | End code |
In step B, the protocol frame that is generated is added into transmit queue, to send protocol frame to terminal equipment.
In step C, receiving thread receives the protocol frame that is sent, and it is added into the reception formation.Should be noted that in other embodiment to judge receiving in the tabulation whether comprise this protocol frame earlier, if then whether execution in step C if not, then comprises this protocol frame in the cycle criterion reception tabulation.
In step D, the protocol frame after receiving is resolved.
In step e, judge whether verification succeeds of terminal equipment according to the protocol frame after resolving, if, execution in step F1 then, if not, execution in step F2 then.
Preferably, the mode of terminal equipment verification comprises:
Mode one: through the command number verification;
Mode two: through terminal coding and command word combination verification;
Mode three: pass-through mode one combines verification with mode two.
What should be noted that employing in the present embodiment is mode three, and those skilled in the art should understand, and in other embodiment, employing mode one also can be implemented with mode two, repeats no more at this.
In step F 1, the protocol frame after resolving is added into the reception chained list, go to step G.
In step F 2, generate first and reply data, return steps A.
In step G, in this reception chained list, search the second answer data with identical terminal coding and command number, be back to the user to reply data with said second.
See also Fig. 2, Fig. 2 is the flow chart of agreement means of communication step B of the present invention, and is as shown in Figure 2, please combine with reference to figure 1, and said step B is further comprising the steps of:
In step B1, judge that whether transmit queue is empty, if, execution in step B21 then, if not, execution in step B22 then;
In step B21, transmit queue is in wait state, and wakes the transmission thread up, returns step B1;
In step B22, from this transmit queue, obtain protocol frame, and send this protocol frame.
See also Fig. 3, Fig. 3 is the flow chart of agreement means of communication step G of the present invention, and is as shown in Figure 3, and in conjunction with reference to figure 1 and Fig. 2, said step G specifically may further comprise the steps:
In step G1, judge whether to find said second and reply data, if, execution in step G21 then, if not, execution in step G22 then;
In step G21, to reply data with said second and be back to the user, step finishes;
In step G22, judge whether protocol frame is overtime, if then execution in step G3 if not, then returns step G1;
In step G3, return overtime prompt command, return step F 1.
See also Fig. 4; Fig. 4 is the structural representation of protocol communication system of the present invention; As shown in Figure 4; Said system comprise successively the generation module 1 that connects, sending module 2, receiver module 3, parsing module 4, judge module 5, the interpolation module 6 that is connected with said judge module 5, the answer module 7 that is connected with said generation module 1 with said judge module 5 respectively and be connected with said interpolation module 6 return module 8, following mask body is introduced the effect of various piece:
Generation module 1 is used to receive the user and calls type of service to terminal equipment transmission solicit operation order, carries the protocol frame of unique command number with generation, wherein, orders when said type of service comprises the school;
Sending module 2 is used for the protocol frame that is generated is added into transmit queue, to send protocol frame to terminal equipment;
Receiver module 3 is used for receiving thread and receives the protocol frame that is sent, and it is added into the reception formation;
Parsing module 4 is used for the protocol frame after receiving is resolved;
Judge module 5 is used for judging whether verification succeeds of terminal equipment according to the protocol frame after resolving;
Add module 6, the protocol frame after being used for result at judge module 5 and being will resolving when being is added into the reception chained list;
Reply module 7, the result who is used at judge module 5 is that data are replied in generation first when denying;
See also Fig. 5; Fig. 5 is the structural representation of sending module in the protocol communication system of the present invention; As shown in Figure 5, said sending module 2 comprises successively first judging unit 21 that connects, waits for unit 22 and acquiring unit 23 that following mask body is introduced the effect of various piece:
First judging unit is used to judge whether transmit queue is empty;
Wait for the unit, be used for transmit queue being set when being and be in wait state, and wake the transmission thread up in the result of said first judging unit;
Acquiring unit is used for not obtaining protocol frame from this transmit queue in the result of said first judging unit for the time, and sends this protocol frame.
See also Fig. 6; Fig. 6 is the structural representation that returns module in the protocol communication system of the present invention; As shown in Figure 6; Saidly return that module 8 comprises second judging unit 81, the answer unit 82 that is connected with said second judging unit 81 respectively and the 3rd judging unit 83 and the overtime unit 84 that is connected with said the 3rd judging unit 83, following mask body is introduced the effect of various piece:
Second judging unit 81 is used to judge whether to find said second and replys data;
Reply unit 82, be used for the said second answer data being back to the user when being in the result of said second judging unit;
The 3rd judging unit 83 is used for judging whether protocol frame is overtime in the result of said second judging unit for not the time;
Overtime unit 84 is used for returning overtime prompt command when being in the result of said the 3rd judging unit.
Through protocol frame being increased the verification of a unique command number realization to terminal equipment, the user asks and the problem of protocol frame transmitting-receiving entanglement thereby solve, the technical scheme of embodiment of the present invention, and not only user's request tracking is easier, and protocol analysis is simpler.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. agreement means of communication is characterized in that, said method comprising the steps of:
A. receive the user and call type of service, carry the protocol frame of unique command number, wherein, order when said type of service comprises the school with generation to terminal equipment transmission solicit operation order;
B. the protocol frame that is generated is added into transmit queue, to send protocol frame to terminal equipment;
C. receiving thread receives the protocol frame that is sent, and it is added into the reception formation;
D. the protocol frame after receiving is resolved;
E. judge whether verification succeeds of terminal equipment according to the protocol frame after resolving, if, execution in step F1 then, if not, execution in step F2 then;
F1. the protocol frame after will resolving is added into the reception chained list, goes to step G;
F2. generate first and reply data, return steps A;
G. in this reception chained list, search the second answer data, be back to the user to reply data with said second with identical terminal coding and command number.
2. the agreement means of communication according to claim 1 is characterized in that, said step B is further comprising the steps of:
B1. judge that whether transmit queue is empty, if, execution in step B21 then, if not, execution in step B22 then;
B21. transmit queue is in wait state, and wakes the transmission thread up, returns step B1;
B22. from this transmit queue, obtain protocol frame, and send this protocol frame.
3. the agreement means of communication according to claim 2 is characterized in that, said step G specifically may further comprise the steps:
G1. judge whether to find said second and reply data, if, execution in step G21 then, if not, execution in step G22 then;
G21. reply data with said second and be back to the user, step finishes;
G22. judge whether protocol frame is overtime, if then execution in step G3 if not, then returns step G1;
G3. return overtime prompt command, return step F 1.
4. the agreement means of communication according to claim 3 is characterized in that, the mode of terminal equipment verification comprises in said step e:
Mode one: through the command number verification;
Mode two: through terminal coding and command word combination verification;
Mode three: pass-through mode one combines verification with mode two.
5. the agreement means of communication according to claim 4 is characterized in that, the form of said protocol frame comprises initial code, command number, terminal coding, command word, data length, data field, check code and end code.
6. protocol communication system; It is characterized in that; Said system comprise successively the generation module that connects, sending module, receiver module, parsing module, judge module, the interpolation module that is connected with said judge module, the answer module that is connected with said generation module with said judge module respectively and be connected with said interpolation module return module; Wherein
Generation module is used to receive the user and calls type of service to terminal equipment transmission solicit operation order, carries the protocol frame of unique command number with generation, wherein, orders when said type of service comprises the school;
Sending module is used for the protocol frame that is generated is added into transmit queue, to send protocol frame to terminal equipment;
Receiver module is used for receiving thread and receives the protocol frame that is sent, and it is added into the reception formation;
Parsing module is used for the protocol frame after receiving is resolved;
Judge module is used for judging whether verification succeeds of terminal equipment according to the protocol frame after resolving;
Add module, the protocol frame after being used for result at said judge module and being will resolving when being is added into the reception chained list;
Reply module, the result who is used at said judge module is that data are replied in generation first when denying;
Return module, be used for searching the second answer data, be back to the user to reply data with said second with identical terminal coding and command number at this reception chained list.
7. protocol communication system according to claim 6 is characterized in that, said sending module comprises first judging unit, wait unit and the acquiring unit that connects successively, wherein,
First judging unit is used to judge whether transmit queue is empty;
Wait for the unit, be used for transmit queue being set when being and be in wait state, and wake the transmission thread up in the result of said first judging unit;
Acquiring unit is used for not obtaining protocol frame from this transmit queue in the result of said first judging unit for the time, and sends this protocol frame.
8. protocol communication system according to claim 7; It is characterized in that; Saidly return that module comprises second judging unit, the answer unit that is connected with said second judging unit respectively and the 3rd judging unit and the overtime unit that is connected with said the 3rd judging unit, wherein
Second judging unit is used to judge whether to find said second and replys data;
Reply the unit, be used for the said second answer data being back to the user when being in the result of said second judging unit;
The 3rd judging unit is used for judging whether protocol frame is overtime in the result of said second judging unit for not the time;
Overtime unit is used for returning overtime prompt command when being in the result of said the 3rd judging unit.
9. protocol communication system according to claim 8 is characterized in that, the mode of terminal equipment verification comprises in said judge module:
Mode one: through the command number verification;
Mode two: through terminal coding and command word combination verification;
Mode three: pass-through mode one combines verification with mode two.
10. protocol communication system according to claim 9 is characterized in that, the form of said protocol frame comprises initial code, command number, terminal coding, command word, data length, data field, check code and end code.
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| CN2011103613418A CN102438012A (en) | 2011-11-15 | 2011-11-15 | Protocol communication method and system thereof |
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| CN112118162A (en) * | 2020-09-02 | 2020-12-22 | 四川虹美智能科技有限公司 | Communication system and communication method thereof |
| CN114928431A (en) * | 2022-06-30 | 2022-08-19 | 南斗六星系统集成有限公司 | Method and system for preventing packet loss communication of Internet of vehicles terminal |
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