CN100424727C - Control device for microwave equipment - Google Patents
Control device for microwave equipment Download PDFInfo
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- CN100424727C CN100424727C CNB2004100079787A CN200410007978A CN100424727C CN 100424727 C CN100424727 C CN 100424727C CN B2004100079787 A CNB2004100079787 A CN B2004100079787A CN 200410007978 A CN200410007978 A CN 200410007978A CN 100424727 C CN100424727 C CN 100424727C
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- field bus
- fieldbus
- control device
- microwave equipment
- control
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Abstract
The present invention aims at disclosing a field bus and modular controller which is suitable for large microwave equipment. The field bus and modular controller introduces advanced field bus control technology (FCS) and combines an integrated module technology. The present invention is characterized in that a main controller is connected with a sensor, a transmitter, a driver, an executive element, a switching device, etc. via a field bus, wherein the field bus is respectively connected with the sensor, the transmitter, the driver, the executive element, the switching device, etc. via a plurality of special modules; a communication adaptor is arranged between the main controller and the field bus. Due to the adoption of the advanced FCS technology and scattered I/O modules, the field bus and modular controller which is carried out according to the scheme not only obviously reduces system elements and outer control wires, simplifies the designs of equipment and controllers and reduces the work amount and the error rate of production, manufacture, installation and debugging, but also provides favorable technical support for the development of microwave equipment in the aspects of large scales, generalization and standardization.
Description
Technical field
The present invention relates to the control device of microwave equipment, especially about a kind of " fieldbus " and modular control apparatus of large microwave equipment.
Background technology
The control device of at present relevant microwave equipment (as microwave dryer, microwave abstracting machine, microwave industrial furnace etc.), no matter be to adopt which kind of controller (as single-chip microcomputer, PLC, industrial computer etc.), the connection at its reference mark is point-to-point mode substantially, promptly the corresponding magnetron of output point is exported the corresponding input point of sampling for one.If the control of magnetron protection input is included in the lump, then each magnetron will take three reference mark at least.And the wiring of each reference mark and external control thereof is indispensable and also is man-to-man.Therefore, the node of the control device of a microwave equipment and external control wiring amount are extremely various, especially surpass 30 with microwave power
KWMain equipment for very.The tunnel type micro wave dryer is an example as being 50KV with a power, and about 67 magnetrons need be set, and takies 3 contacts with each magnetron and calculates, and its reference mark is 201.If frequency conversion, dehumidifier, low pressure, high pressure, cooling, door are opened reference mark such as (passs), heating, protection and included, then will make the Control Node number that takies of control system individual surplus surpassing 220, surplus its external control line can reach 800." point---point " control device of so many reference mark of quantity and external control wiring, facts have proved that aspects such as Installation and Debugging to equipment, production run, maintenance bring great workload and complicated program, to such an extent as to have influence on the reliability of equipment, not only strengthened production cost virtually, and be an impediment to of the development of large microwave equipment product to standardization and seriation.In recent years, a kind of " fieldbus " control system (Fieldbus Control System---be called for short FCS) technology has been used for industrial control system, and has progressively adapted to the direction of industrial control system to decentralized, networking and intelligent development.Outstanding feature of this technology is to have " open shape ", promptly allows and encourage the technical standard of different producers according to " fieldbus ", and independent research has the technical products of characteristic separately.Therefore, the introduction of " fieldbus " technology has produced great change aspect industrial automation control system.At present, the FCS system uses the comparatively ripe CANBUS that has in industrial automation control system; PROFIBUS; LONWORKS etc.
Summary of the invention
The objective of the invention is for overcoming defective and the deficiency that prior art exists, disclose a kind of contact that is suitable for large microwave equipment few, connect up less, efficient height, reliability height, cost is low and be easy to " fieldbus " and the modular control apparatus of installation and maintenance.The invention thinking of this device is to be starting point with the control linkage to microwave generator in the microwave equipment, quote advanced " fieldbus " control technology (FCS) and in conjunction with integrated building block technique, with the field apparatus that possesses digital computation and digital communication ability as network node, with " fieldbus " as the tie of realizing digital communication between node, constitutes the Control Network of digital, transmitted in both directions, full dispersion, multiple-branching construction.Main reference of the present invention " observation and control technology " Su Qianzhu (1999 the 18th the 5th phases of volume); PHILIPSSemiconductors.DATA SHEET SJA1000 Stand-alone CAN controller1997.11; " fieldbus and industrial control network, micro computer and application " Jiang Zhengzhan work technical literatures such as (1995.11).Said field apparatus mainly is meant in " fieldbus ": sensor, transmitter, switching device, driver, executive component, indication and display, man-machine operation interface etc., said microwave generator mainly is meant magnetron and transformer etc.For reaching aforementioned purpose of the present invention and realization " fieldbus " and modular control device, examination is carried out conscious division and queuing with controlling object and control target by its function, the output signal control of---because the control target of each magnetron and the transformer is meant---magnetron that then can obtain following result, overtemperature prote input signal detection, fault input signal detection, the protection of transformer heat alarm etc.; The control target of temperature aspect is meant---infrared temperature input, hot blast temperature signal monitoring etc.; Other control targets also have cooling, dehumidifier, vacuumize, frequency control etc.That's what it all adds up to, can and produce the special module that has with its respective control function by the design of its difference in functionality---also promptly all Control Node of control identical function are integrated in same module, and inputing or outputing the control signal of several controlling object finished in the special module unification thus, simultaneously, the module with above-mentioned all difference in functionalitys goes up the processing controls that level controller (PLC or industrial computer etc.) is unified to coordinate by local communication bus connection back access.In sum, the technical solution used in the present invention is: a kind of control device of microwave equipment, comprise the I/O module that is connected with master controller and connected sensor, transmitter, driver, executive component, switching device, it is characterized in that master controller connects sensor, transmitter, driver, executive component, switching device by fieldbus, wherein, fieldbus connects sensor, transmitter, driver, executive component, switching device respectively by some accommodation function modules, is provided with communications adapter between master controller and the fieldbus; Accommodation function module is parallel to the fieldbus that is provided with a plurality of interfaces; Microwave heating unit of each accommodation function module control linkage, a microwave heating unit is meant a fuel tank assembly or an air-cooled heating chamber; A fuel tank assembly contains 3～6 transformers and 3～6 magnetrons corresponding with it, and air-cooled heating chamber contains 3～6 transformers and corresponding with it 3～6 magnetrons and air-cooler.
Press fieldbus and modular control apparatus that such scheme is implemented, owing to adopted advanced " FCS " technology and distributed I/O module, system element and external control wiring have been reduced significantly, simplify the design of equipment and control device and reduced the workload and the error rate of the manufacturing, Installation and Debugging, also therefore reduced production, debugging and the maintenance cost of equipment.The present invention is with " FCS " system and organic combination of distributing I/O building block technique, not only for be extensive use of standardized " fieldbus " provide one general and make this system operate in the platform of the Industrial PC+WINDOWS/NT of standard, and provide favourable technical support for the development of microwave equipment to maximization, universalization and standardization aspect.The present invention has certain technical advance and vast market prospect.
Description of drawings
Fig. 1 is a control structure block diagram of the present invention;
Fig. 2 is the control structure block diagram of a module and fuel tank assembly;
Fig. 3 is a kind of 60
KWThe tunnel type micro wave dry sterilizer is the structural representation of embodiment;
Fig. 4 is the structure enlarged diagram of heating unit among Fig. 3 embodiment.
Embodiment
In conjunction with the accompanying drawings with regard to a kind of 60
KWThe tunnel type micro wave dry sterilizer is embodiment, is further described in detail.Master controller 7 is made up of host computer (adopting SUNX FPO-C16CT) and man-machine interface (adopting SUNX GT30 touch-screen), this controller is by (diagram summaries) such as all temps that connected respectively by fieldbus 1 mould fast 3 surplus 10 and infrared sensor, high-low pressure transmitter, driver (motor, speed reduction unit, transport tape), relays, be provided with communications adapter (in the accompanying drawing for illustrating) between master controller 7 and the fieldbus 1, this adapter can be suitable for RS232 or LS485 type according to the difference of master controller communication interface.For satisfying the requirement of this tunnel captain's Distance Transmission signal, the fieldbus 1 that picks out from adapter transfers the CAN fieldbus to, fieldbus 1 is provided with a plurality of interfaces in order to each mould fast 3 in parallel, wherein, heating unit 6 of fast 3 control linkages of each mould, this heating unit comprises 6 transformers 21 and 6 fuel tank assemblies 2 that magnetron 5 constitutes, constitute heating chamber 60 according to this, the passage that dozens of heating chamber 60 is arranged in rows---tunnel is in order to finish from the oven dry and the sterilization of the material of being carried by transport tape 8 therebetween.Every mould in this control device is soon according to the instruction and the various input information of master controller, 6 transformers of each fuel tank assembly are closed 6 magnetrons carry out break-make control, other controls (as dehumidifier, preheating, speed governing etc.) beyond the fuel tank are then controlled soon by other moulds that are parallel to the CAN fieldbus.The fast feedack of all moulds all be transmitted in master controller by the CAN fieldbus and at above-mentioned display screen to show.The used module of present embodiment can select conventional module for use, also can adopt special designs.Structure this case as for air-cooled heating chamber is omitted, and 4 shown in the figure is the dehumidifier pipeline.
Claims (6)
1. the control device of a microwave equipment, comprise the I/O module that is connected with master controller and connected sensor, transmitter, driver, executive component, switching device, it is characterized in that master controller connects sensor, transmitter, driver, executive component, switching device by fieldbus, wherein, fieldbus connects sensor, transmitter, driver, executive component, switching device respectively by some accommodation function modules, is provided with communications adapter between master controller and the fieldbus.
2. by the control device of the described microwave equipment of claim 1, it is characterized in that accommodation function module is parallel to the fieldbus that is provided with a plurality of interfaces.
3. by the control device of claim 1,2 described microwave equipments, it is characterized in that microwave heating unit of each accommodation function module control linkage.
4. by the control device of the described microwave equipment of claim 3, it is characterized in that a microwave heating unit is meant a fuel tank assembly or an air-cooled heating chamber.
5. by the control device of the described microwave equipment of claim 4, it is characterized in that a fuel tank assembly contains 3～6 transformers and 3～6 magnetrons corresponding with it.
6. by the control device of the described microwave equipment of claim 4, it is characterized in that an air-cooled heating chamber contains 3～6 transformers and corresponding with it 3～6 magnetrons and air-cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100079787A CN100424727C (en) | 2004-03-23 | 2004-03-23 | Control device for microwave equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100079787A CN100424727C (en) | 2004-03-23 | 2004-03-23 | Control device for microwave equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1674052A CN1674052A (en) | 2005-09-28 |
| CN100424727C true CN100424727C (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100079787A Expired - Fee Related CN100424727C (en) | 2004-03-23 | 2004-03-23 | Control device for microwave equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102759932B (en) * | 2012-07-05 | 2014-05-14 | 中国科学技术大学 | Control device and control method for plurality of paths of gas mass flow meters |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6388238B2 (en) * | 1998-12-31 | 2002-05-14 | General Electric Company | Microwave oven control with external memory control data |
| US6463950B1 (en) * | 1999-09-07 | 2002-10-15 | Festo Ag & Co. | Method and device for the transmission of control and/or sensor signals |
| JP2003018179A (en) * | 2002-04-26 | 2003-01-17 | Matsushita Electric Ind Co Ltd | Routing processing and method in home bus system |
| US20030231212A1 (en) * | 2002-06-18 | 2003-12-18 | Bellsouth Intellectual Property Corporation | User interface to a device environment |
| CN2696060Y (en) * | 2004-03-23 | 2005-04-27 | 天水华圆制药设备科技有限责任公司 | Controller of microwave equipment |
-
2004
- 2004-03-23 CN CNB2004100079787A patent/CN100424727C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6388238B2 (en) * | 1998-12-31 | 2002-05-14 | General Electric Company | Microwave oven control with external memory control data |
| US6463950B1 (en) * | 1999-09-07 | 2002-10-15 | Festo Ag & Co. | Method and device for the transmission of control and/or sensor signals |
| JP2003018179A (en) * | 2002-04-26 | 2003-01-17 | Matsushita Electric Ind Co Ltd | Routing processing and method in home bus system |
| US20030231212A1 (en) * | 2002-06-18 | 2003-12-18 | Bellsouth Intellectual Property Corporation | User interface to a device environment |
| CN2696060Y (en) * | 2004-03-23 | 2005-04-27 | 天水华圆制药设备科技有限责任公司 | Controller of microwave equipment |
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| CN1674052A (en) | 2005-09-28 |
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