CN102736565A - Communication method of automatic control equipment based on upper and lower computer structures - Google Patents
Communication method of automatic control equipment based on upper and lower computer structures Download PDFInfo
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- CN102736565A CN102736565A CN201110082855XA CN201110082855A CN102736565A CN 102736565 A CN102736565 A CN 102736565A CN 201110082855X A CN201110082855X A CN 201110082855XA CN 201110082855 A CN201110082855 A CN 201110082855A CN 102736565 A CN102736565 A CN 102736565A
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Abstract
The invention discloses a communication method of automatic control equipment based on upper and lower computer structures. A template data processing module is arranged in an upper computer system. A query/response mechanism general communication method processing module is arranged in the lower computer system. The template data processing module dynamically generates query/response protocol general communication data in accordance with template data according to a parameter set to external equipment by a user and downloads the general communication data to the lower computer system. The query/response mechanism general communication method processing module reads the general communication data of the corresponding equipment when it is needed, analyzes the data, communicates with the external equipment and returns the received response data to the upper computer system. By using the method of the invention, supports to the new equipment and the new communication protocol can be realized under the condition that system software is not updated so that software updating and maintenance costs after the new equipment is added are greatly reduced, an automatic control mode is flexible and is convenient for capacity expanding.
Description
The present invention relates to a kind of communication means; Relate in particular to a kind of based on the automation control appliance of upper and lower machine structure, need not change system software and just can realize the communication means of the support of new equipment, new traffic agreement is belonged to the automation control appliance production field.
Background technology
Current; In industrial automation control field; Communication class protocol application based on inquiry/acknowledgement mechanism is very extensive, as all using this type communication protocol widely on the EBIs such as I2C, SPI, serial communication (RS232, RS422, RS485 etc.), CAN bus.
In order to realize communicating with above-mentioned bus apparatus, current way all is to be employed in the form that adopts hard coded in this end system to solidify corresponding communication protocol, adopts this communication protocol and corresponding equipment to communicate.This mode exists a problem: when needs add the equipment that can't support in a kind of current system or communication protocol, can't under the situation of not revising system code, provide support to new equipment (using new communication protocol).If this emerging equipment is supported, need be in system software (software that comprises master system and lower computer system) insert the handling procedure of this device protocol through hard coded, upgrade the software of total system then.This mode must increase the software version management difficulty with the later maintenance cost that improves system, brings the extra maintenance trouble for simultaneously the client who uses, and is unfavorable for the dilatation of automation control appliance and the development of robotization control industry.
Summary of the invention
The object of the invention is exactly the communication means that a kind of automation control appliance based on upper and lower machine structure is provided in order to address the above problem, and this method need not changed system software just can realize the support to new equipment, new traffic agreement.
To achieve these goals, the present invention has adopted following technical scheme:
The present invention is used to realize the interactive communication between user interface, master system, lower computer system and the external unit; Its innovation part is: template data processing module and template database are set in master system, inquiry/acknowledgement mechanism universal communication method processing module is set in lower computer system; The data of said template database comprise list of devices, device context, protocol list, protocol description data and the descriptor definition table of each external unit; Said template data processing module is according to the be provided with parameter of user to external unit; Dynamically according to template data generated query/response protocol all purpose communication data; And said all purpose communication data down transmission to lower computer system; Simultaneously, said template data processing module is dynamically resolved the untreated reply data that lower computer system returns according to the template configuration data, and submits to user interface to the data after resolving according to format of user data; Lower computer system is stored the said all purpose communication data that said template data processing module issues; Said inquiry/acknowledgement mechanism universal communication method processing module reads all purpose communication data of corresponding device when needed and resolves; And send corresponding query statement to corresponding external unit; Wait for and receive the reply data of external unit, after receiving the reply data of said external unit, do not resolve said reply data as required; Or said reply data is resolved and obtain to resolve the back data, and the said reply data of will not resolve or resolve the back data and turn back to master system according to the configured protocols data.
Because the template data processing module is according to the be provided with parameter of user to external unit; Dynamically according to template data generated query/response protocol all purpose communication data; And said all purpose communication data down transmission to lower computer system; Inquiry/acknowledgement mechanism universal communication method processing module reads all purpose communication data of corresponding device when needed and resolves; Again and carry out interactive communication between the external unit, and reply data is turned back to master system, thereby form the interactive communication between user interface, master system, lower computer system and the external unit; Completion is to the robotization control of external unit; And can increase external unit arbitrarily based on inquiry/response protocol, and can realize robotization control through the process of relatively simplifying (only need in local terminal master system database, add the abstractdesription data of one group of this new equipment or agreement) to new equipment, do not need system software (software that comprises master system and lower computer system) is done the processing of any replacing or upgrading.
Particularly; The list of devices of said external unit is the device name that can provide support in the record current database, the tabulation of unit type; Use a unique ID value to carry out mark to each unit type; Have only a unit type tabulation in the template data processing module, each unit type tabulation can be write down several unit types, uses the device id value to retrieve; Described device context is the details of corresponding device in the recording unit tabulation, comprises and describes the communication interface that this equipment uses, and the messaging parameter of the default parameters of this communication interface configuration; Said protocol list is: use a unique ID value to carry out mark to each Content of Communication, and the various information of record communication content, the corresponding protocol list of each unit type, each protocol list can write down several Content of Communication; Said protocol description data are the data that the descriptor that defines in the using system is described Content of Communication, and said protocol description data are divided into two parts, are respectively applied for query statement and the device acknowledge data of describing this Content of Communication; Said descriptor definition table is used for writing down ID number and corresponding description definition of data of the employed descriptor of each protocol description data, supplies said protocol description data to use.
Said all purpose communication data comprise external device communication supplemental characteristic, querying command data and reply data parsing description.Wherein, employed communication interface when the external device communication supplemental characteristic is used to describe external device communication, and information such as interface parameters, time-out time are if had the data of this equipment then can issue once more in the slave computer; The querying command data refer to when carrying out this communication, need send to the querying command data of external unit; Reply data is resolved to describe and has been write down the data composition information of external unit to the reply data of this querying command, and whether correct, and the data value that obtains and calculate user's ultimate demand if being used to analyze the reply data that returns.
Said template data processing module generates said inquiry/response protocol all purpose communication data and the following flow process that passes to lower computer system is: beginning → user selects external unit model, Content of Communication and parameter → template data processing module to receive the corresponding Content of Communication data of description → retrieval descriptor definition table → generation common communication protocol data → transmission common communication protocol data of user's configuration data → retrieval facility type specification data → retrieval to lower computer system → end.
Said inquiry/acknowledgement mechanism universal communication method processing module with communication process between said external unit and the said master system is: if beginning → slave computer module receives the corresponding communicate configuration data → initialize communications port of instruction → retrieval that certain equipment and Content of Communication are communicated → send the query statement → wait external device response → wait timeout in the configuration data to external unit; Then return mistake; If receive answer number; If then certificate judged according to configuration data whether reply data is legal → would not do not conform to rule to return mistake; If, then parse the data → end single job of the data of user's needs → after master system returns parsing if desired according to configuration data if legal then judge whether to resolve return results data → do not need then return the data of not resolving and finish single job to master system.
Beneficial effect of the present invention is:
By on can know; Through the present invention; Can be implemented in and realize under the prerequisite of not upgrading host computer and lower computer system software, only need in template database, to increase corresponding configuration data and get final product, operate also very simple the new equipment that communicates based on inquiry/acknowledgement mechanism, the support of new traffic agreement; Owing to need not change or upgrade to each software of system; So thereby the present invention has greatly reduced the software upgrading that increases after new equipment, the New Deal and the cost of maintenance; Reduce the version management difficulty, alleviated the software maintenance burden of using the client, improved client's user satisfaction; Make the robotization control mode more flexible, and be convenient to the dilatation of automation control appliance and the development of robotization control industry.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present invention;
Fig. 2 is the schematic block diagram that template database is formed among the present invention;
Fig. 3 is the schematic block diagram that all purpose communication data are formed among the present invention;
Fig. 4 is the process flow diagram of template data processing module deal with data among the present invention;
Fig. 5 is the process flow diagram of inquiry/acknowledgement mechanism universal communication method processing module deal with data among the present invention;
Fig. 6 is the system chart of specific embodiment among the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is made further specific descriptions:
As shown in Figure 1, the part among the figure in the frame of broken lines is a system architecture involved in the present invention, and template data processing module and template database are set in master system, and inquiry/acknowledgement mechanism universal communication method processing module is set in lower computer system; The data of said template database comprise list of devices, device context, protocol list, protocol description data and the descriptor definition table of each external unit; Said template data processing module is according to the be provided with parameter of user to external unit; Dynamically according to template data generated query/response protocol all purpose communication data; And said all purpose communication data down transmission to lower computer system; Simultaneously, said template data processing module is dynamically resolved the untreated reply data that lower computer system returns according to the template configuration data, and submits to user interface to the data after resolving according to format of user data; Lower computer system is stored the said all purpose communication data that said template data processing module issues; Said inquiry/acknowledgement mechanism universal communication method processing module reads all purpose communication data of corresponding device when needed and resolves; And send corresponding query statement to corresponding external unit; Wait for and receive the reply data of external unit, after receiving the reply data of said external unit, do not resolve said reply data as required; Or said reply data is resolved and obtain to resolve the back data, and the said reply data of will not resolve or resolve the back data and turn back to master system according to the configured protocols data.
As shown in Figure 1; When the user need add new external unit (is device A, B......N; Add singly) time, be delivered to the template data processing module at first by the parameter of user, and parameter through user interface (like computing machine) configuring external equipment; Above-mentioned template data processing module retrieval template database obtains the template data of corresponding device, dynamically generates all purpose communication data; As shown in Figure 2; These template datas comprise list of devices, device context, protocol list, protocol description data and the descriptor definition table of each external unit; Wherein, List of devices is the device name that can provide support in the record current database, the tabulation of unit type, uses a unique ID value to carry out mark to each unit type, has only a unit type tabulation in the template data processing module; Each unit type tabulation can be write down several unit types (being unit type A......N); Described device context is the details of corresponding device in the recording unit tabulation, and like producer's information, functional characteristics, messaging parameter etc., messaging parameter is then described the communication interface that this equipment uses, and the configuration of the default parameters of this communication interface; Said protocol list is: use a unique ID value to carry out mark to each Content of Communication; The various information of record communication content; The corresponding protocol list of each unit type, each protocol list can write down several Content of Communication (being Content of Communication 1,2......n); Said protocol description data are the data (being description and the parameter of Content of Communication 1,2......n) that the descriptor that defines in the using system is described Content of Communication; Said protocol description data are divided into two parts; Be respectively applied for query statement and the device acknowledge data of describing this Content of Communication; Said descriptor definition table is used for writing down ID number and corresponding description definition of data of the employed descriptor of each protocol description data, supplies said protocol description data to use.
As shown in Figure 1; The user through user interface (like computing machine) to template data processing module input after the interpolation configuration of devices data; The template data processing module can be according to the be provided with parameter of user to external unit; Dynamically according to template data generated query/response protocol all purpose communication data; And said all purpose communication data down transmission to lower computer system; As shown in Figure 4, said template data processing module generates said inquiry/response protocol all purpose communication data and the following flow process that passes to lower computer system is: beginning → user selects external unit model, Content of Communication and parameter → template data processing module to receive the corresponding Content of Communication data of description → retrieval descriptor definition table → generation common communication protocol data → transmission common communication protocol data of user's configuration data → retrieval facility type specification data → retrieval to lower computer system → end.As shown in Figure 3; Said all purpose communication data comprise external device communication supplemental characteristic, querying command data and reply data parsing description; Wherein, Employed communication interface when the external device communication supplemental characteristic is used to describe external device communication, and information such as interface parameters, time-out time are if had the data of this equipment then can issue once more in the slave computer; The querying command data refer to when carrying out this communication, need send to the querying command data of external unit; Reply data is resolved to describe and has been write down the data composition information of external unit to the reply data of this querying command, and whether correct, and the data value that obtains and calculate user's ultimate demand if being used to analyze the reply data that returns.
As shown in Figure 1; Said all purpose communication data down transmission is behind the storer of lower computer system; Said inquiry/acknowledgement mechanism universal communication method processing module can read all purpose communication data of corresponding device when needed and resolve; As shown in Figure 5; Said inquiry/acknowledgement mechanism universal communication method processing module with communication process between said external unit and the said master system is: if beginning → slave computer module receives the corresponding communicate configuration data → initialize communications port of instruction → retrieval that certain equipment and Content of Communication are communicated → send the query statement → wait external device response → wait timeout in the configuration data to external unit; Then return mistake; If receive answer number; If then according to judge according to configuration data whether reply data legal → do not conform to rule to return mistake, if, then parse the data → end single job of the data of user's needs → after master system returns parsing if desired according to configuration data if legal then judge whether to resolve return results data → do not need then return the data of not parsing and finish single job to master system.
As shown in Figure 1, said template data processing module is dynamically resolved the untreated reply data that lower computer system returns according to the template configuration data, and submits to user interface to the data after resolving according to format of user data.
Pass through said process; The user can increase the external unit based on inquiry/response protocol arbitrarily; And can realize the robotization of new equipment is controlled through the process of relatively simplifying (only need in local terminal master system database, add the abstractdesription data of one group of this new equipment or agreement), do not need system software (software that comprises master system and lower computer system) is done the processing of any replacing or upgrading.And after having increased new external unit; Template data processing module and inquiry/acknowledgement mechanism universal communication method processing module then can realize the interactive communication between user interface, master system, lower computer system and the external unit, and a plurality of external units are carried out robotization control.
Robotization control and detection system below in conjunction with having implemented illustrate further the present invention:
As shown in Figure 6, master system is a server, and user interface is the computing machine of workstation, and lower computer system is an embedded system, and external unit is intelligent air condition, intelligent thermometer, intelligent electric meter, intellectual water meter and intelligent gas meter; In server, be provided with template data processing module and template database, in embedded system, be provided with inquiry/acknowledgement mechanism universal communication method processing module.Template data processing module in the server is carried out interactive communication through the computing machine and the user of workstation, receives user's configuration data and instruction, and feeds back to the user to the result.The inquiry/acknowledgement mechanism universal communication method processing modules implement in the embedded system and the communication that is connected of intelligent air condition, intelligent thermometer, intelligent electric meter, intellectual water meter and intelligent gas meter are monitored and are controlled intelligent air condition, intelligent thermometer, intelligent electric meter, intellectual water meter and intelligent gas meter.
System shown in Figure 6 is by successful Application; The interpolation of its new equipment and the robotization of all devices control all is achieved through the present invention, in the process of adding new equipment, system software is not changed or is upgraded, and is very convenient, quick; Saved the after-cost; And can also increase new external unit arbitrarily on this basis, like intelligent curtain, intelligent washing machine etc., can both easily realize automatic monitoring and control.
Of the present invention focus on providing a kind of automation control appliance that is applied to upper and lower machine structure, based on the communication means of inquiry/acknowledgement mechanism universal communication method; If change the chip model or the parameter of template data processing module and/or inquiry/acknowledgement mechanism universal communication method processing module on this basis; Or change the middle progression of automation control system, all should be regarded as invading the right of patent of the present invention.
Claims (5)
1. communication means based on the automation control appliance of upper and lower machine structure; Be used to realize the interactive communication between user interface, master system, lower computer system and the external unit; It is characterized in that: template data processing module and template database are set in master system, inquiry/acknowledgement mechanism universal communication method processing module is set in lower computer system;
The data of said template database comprise list of devices, device context, protocol list, protocol description data and the descriptor definition table of each external unit; Said template data processing module is according to the be provided with parameter of user to external unit; Dynamically according to template data generated query/response protocol all purpose communication data; And said all purpose communication data down transmission to lower computer system; Simultaneously, said template data processing module is dynamically resolved the untreated reply data that lower computer system returns according to the template configuration data, and submits to user interface to the data after resolving according to format of user data;
Lower computer system is stored the said all purpose communication data that said template data processing module issues; Said inquiry/acknowledgement mechanism universal communication method processing module reads all purpose communication data of corresponding device when needed and resolves; And send corresponding query statement to corresponding external unit; Wait for and receive the reply data of external unit, after receiving the reply data of said external unit, do not resolve said reply data as required; Or said reply data is resolved and obtain to resolve the back data, and the said reply data of will not resolve or resolve the back data and turn back to master system according to the configured protocols data.
2. the communication means of the automation control appliance based on upper and lower machine structure according to claim 1; It is characterized in that: the list of devices of said external unit is the device name that can provide support in the record current database, the tabulation of unit type; Use a unique ID value to carry out mark to each unit type; Has only a unit type tabulation in the template data processing module; Each unit type tabulation can be write down several unit types, uses the device id value to retrieve; Described device context is the details of corresponding device in the recording unit tabulation, comprises and describes the communication interface that this equipment uses, and the messaging parameter of the default parameters of this communication interface configuration; Said protocol list is: use a unique ID value to carry out mark to each Content of Communication, and the various information of record communication content, the corresponding protocol list of each unit type, each protocol list can write down several Content of Communication; Said protocol description data are the data that the descriptor that defines in the using system is described Content of Communication, and said protocol description data are divided into two parts, are respectively applied for query statement and the device acknowledge data of describing this Content of Communication; Said descriptor definition table is used for writing down ID number and corresponding description definition of data of the employed descriptor of each protocol description data, supplies said protocol description data to use.
3. the communication means of the automation control appliance based on upper and lower machine structure according to claim 1 is characterized in that: said all purpose communication data comprise that external device communication supplemental characteristic, querying command data and reply data are resolved and describe.
4. the communication means of the automation control appliance based on upper and lower machine structure according to claim 1 is characterized in that: the flow process that said template data processing module generates said inquiry/response protocol all purpose communication data and passes to lower computer system down is: Content of Communication data of description → retrieval descriptor definition table → generation common communication protocol data → transmission common communication protocol data that beginning → user selects external unit model, Content of Communication and parameter → template data processing module to receive user's configuration data → retrieval facility type specification data → retrieval correspondence arrive lower computer system → end.
5. the communication means of the automation control appliance based on upper and lower machine structure according to claim 1; It is characterized in that: said inquiry/acknowledgement mechanism universal communication method processing module with communication process between said external unit and the said master system is: if beginning → slave computer module receives the corresponding communicate configuration data → initialize communications port of instruction → retrieval that certain equipment and Content of Communication are communicated → send the query statement → wait external device response → wait timeout in the configuration data to external unit; Then return mistake; If receive answer number; If then certificate judged according to configuration data whether reply data is legal → would not do not conform to rule to return mistake; If, then parse the data → end single job of the data of user's needs → after master system returns parsing if desired according to configuration data if legal then judge whether to resolve return results data → do not need then return the data of not resolving and finish single job to master system.
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