CN108319203A - A kind of controller and its control method for embedded control system - Google Patents
A kind of controller and its control method for embedded control system Download PDFInfo
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- CN108319203A CN108319203A CN201810188298.1A CN201810188298A CN108319203A CN 108319203 A CN108319203 A CN 108319203A CN 201810188298 A CN201810188298 A CN 201810188298A CN 108319203 A CN108319203 A CN 108319203A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004891 communication Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 18
- 230000006870 function Effects 0.000 claims description 19
- 238000013500 data storage Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 8
- 230000033772 system development Effects 0.000 abstract 1
- 238000011161 development Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention discloses a kind of controllers and its control method for embedded control system, belong to industrial control field.Provide a kind of controller for embedded control system, the controller retains the circuit for realizing logic or mathematical computations and communication function, reject I O process circuit, the controller is connected with CAN, CAN FD and/or Ethernet communication modes with intelligence sensor and/or intelligent actuator, the intelligence sensor and/or intelligent actuator for realizing the I O process circuit of rejecting function.Controller provided by the invention and its control method enable to the reduction of controller size, weight saving, cost reduction, reliability to improve, and control unit interface pin number is reduced, the harness of embedded control system is reduced, embedded control system development reduction, flexible reinforced have a good application prospect in related fields such as Industry Control, automobile and military projects.
Description
Technical field
The present invention relates to industrial control field, more particularly to a kind of controllers and its control for embedded control system
Method.
Background technology
So-called Embedded Application technology refers to using a small-sized or micro computer device with complete function as a portion
Part or subsystem organically constitute the system with better function and perfect of a more reliable technical stability, work with carrier
The leading indicator requirement of industry embedded system:Real-time, high efficiency, security and stability and reliability and it is compact-sized, be easy to
It cuts out, good opening.Real-time is exactly event-driven ability and time driving ability, and basis is the tactic pattern of kernel
With management of process mechanism;High efficiency includes the startup speed and the speed of service and message transmission efficiency etc. of system;And stability with
Reliability includes the related performance indicator such as stability, safety and fault-tolerant ability.
At present in embedded control system, controller can the Acquisition Circuit of integrated sensor and actuator as possible driving
Circuit cannot standardize to keep the controller of the embedded control system of different application multifarious.In addition, at present embedding
The controller for entering formula control system is by processor chips, power supply chip, crystal oscillator chip, and the separate chips such as interface chip pass through
PCB interconnections are constituted, and in this case, the controller of chip is impossible.Also, there are pcb boards for such controller
The shortcomings of grade development amount is big, harness is more, pin is more, reliability is poor.
Invention content
In order to solve problems in the prior art, an embodiment of the present invention provides a kind of controls for embedded control system
Device and its control method.The technical solution is as follows:
On the one hand, provide a kind of controller for embedded control system, the controller retain realize logic or
The circuit of mathematical computations and communication function, rejects I O process circuit, and the controller is logical with CAN, CAN FD and/or Ethernet
Letter mode is connected with intelligence sensor and/or intelligent actuator, and the intelligence sensor and/or intelligent actuator are for realizing picking
The function of the I O process circuit removed.
Preferably, the controller has one or more groups of CAN, CAN FD and/or Ethernet communications pins.
Preferably, the intelligence sensor is used for:The physical quantity of measurement is converted into digital signal;To sensor itself
State is diagnosed;By the state of physical quantity and sensor itself with the CAN, CAN FD and/or Ethernet communication modes
Issue the controller;The intelligent actuator is used for:The controller is received with the CAN, CAN FD and/or Ethernet
The instruction of communication mode transmission simultaneously executes instruction corresponding operating;The state of actuator itself is diagnosed;By actuator itself
State the controller is issued with the CAN, CAN FD and/or Ethernet communication modes.
Preferably, the function module of the I O process circuit of rejecting includes:I/O event controllers, time correlation I/O
Signal input/output, I/O analog-digital converters, I/O input and output, the I/O bus control units for being communicated with external module.
Preferably, the intelligence sensor and/or intelligent actuator include the I/O event controllers, time correlation
The input/output of I/O signals, I/O analog-digital converters, I/O input and output, the I/O bus control units for being communicated with external module.
Preferably, the controller includes:Microprocessor, program data memory, power supply, clock generator, total linear system
System, I/O interrupt control units, watchdog module and I/O for the CAN, CAN FD and/or Ethernet communication modes are total
Lane controller, transceiver and interface circuit.
Preferably, the microprocessor includes control unit and arithmetical unit, and the microprocessor is 4,8,16
Or 32 microprocessors;Described program data storage includes non-volatile read-only memory;The data storage includes
Non-volatile or volatile read/write memory;The bus system includes 4 bit wides, the data of 8 bit wides, 16 bit wides or 32 bit wides
Connection.
On the other hand, a kind of control method of the controller according to said program is provided, which includes
Following steps:
The controller obtains required thing with CAN, CAN FD and/or Ethernet communication modes from the intelligence sensor
The numerical value of reason amount;
With the numerical value be input calculates corresponding control numerical value by the pre-set programs of the controller, and by the control number
Value issues the intelligent actuator with the CAN, CAN FD and/or Ethernet communication modes;
After the intelligent actuator receives control signal, the corresponding control instruction corresponding operating of the control numerical value is executed.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is:
1, due to eliminating various I O process circuits, the area of PCB substantially reduces, weight saving, it might even be possible to completely not
Controller is packaged into using the connection of chip and encapsulation technology by chip using PCB, forms chip type controller, so that
The size of controller entirety reduces, weight saving;
2, using this controller, pcb board grade development amount is greatly decreased, it might even be possible to it is developed completely without plate grade, because
Device is exactly a chip in order to control, does not need the exploitation of plate grade.So, the mistake that may be introduced in the exploitation of traditional controller plate grade
It can just not introduce again, so controller reliability can improve;In addition, development is reduced, fee to develop reduces;
3, due to only retaining communication and power supply, controller is greatly decreased with external interface, that is, the pin of controller,
The harness of so connection controller can be greatly decreased, and the cost of harness can reduce, the development meeting of the harness such as arrangement of harness
It reduces, development cost can decline;
4, the embedded controller of current different application is widely different, for example, engine controller and ESP controller have been
Complete different, basic reason is that the device of the physical signal and required drive control acquired needed for different application is different,
If these difference sections are removed controller, moving into intelligence sensor and/or intelligent actuator, different application can use
Identical controller, this controller exactly realize this function, and a controller can be adapted in a variety of different applications,
So that the flexible reinforced of control system;
5, since controller size reduces, weight saving, harness and pin are reduced so that the cost reduction of controller.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of controller architecture schematic diagram being traditionally used for embedded control system in the prior art;
Fig. 2 is the controller architecture schematic diagram provided in an embodiment of the present invention for embedded control system;
Fig. 3 is the 1 × CAN and 1 × Ethernet controller provided in an embodiment of the present invention for embedded control system
Structural schematic diagram;
Fig. 4 is 3 × CAN FD and 1 × Ethernet controls provided in an embodiment of the present invention for embedded control system
Device structural schematic diagram;
Fig. 5 be 2 × CAN, 3 × CAN FD and 1 provided in an embodiment of the present invention for embedded control system ×
Ethernet controller architecture schematic diagrames;
Fig. 6 is the control method flow signal of the controller provided in an embodiment of the present invention for embedded control system
Figure.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, " multigroup " is meant that two or more, unless otherwise clearly specific
Restriction.
Controller provided in an embodiment of the present invention for embedded control system, which is characterized in that realized by retaining
The circuit of logic or mathematical computations and communication function rejects I O process circuit, then controller with CAN, CAN FD and/or
Ethernet communication modes are connected with intelligence sensor and/or intelligent actuator, and intelligence sensor and/or intelligent actuator are used for
Realize reject the I O process circuit function, enable to reductions of controller size, weight saving, cost reduction, reliably
Property improve, and control unit interface pin number is reduced, and the harness of embedded control system is reduced, embedded control system exploitation
Work reduction, flexible reinforced, have a good application prospect in related fields such as Industry Control, automobile and military projects.
With reference to specific embodiment, to the controller provided in an embodiment of the present invention for embedded control system make into
One step explanation.
Embodiment 1
Fig. 1 is a kind of controller architecture schematic diagram being traditionally used for embedded control system in the prior art.
Fig. 2 is the controller architecture schematic diagram provided in an embodiment of the present invention for embedded control system.
As shown in Figs. 1-2, the controller provided in an embodiment of the present invention for embedded control system is controlled relative to tradition
Device processed only retains the circuit for realizing logic or mathematical computations and communication function, rejects I O process circuit, and by controller with CAN,
CAN FD and/or Ethernet communication modes are connected with intelligence sensor and intelligent actuator, and intelligence sensor and/or intelligence
Actuator for realizing the I O process circuit of rejecting function.Due to only remaining operation and communication function, number can will be sensed
It is transmitted between controller and intelligence sensor and/or intelligent actuator according to by network, controller can be made in this way, in physics
Level has identical the interface of standard in other words with functional plane, to realize the chip of controller, embedded control system
Flexible reinforced;And since remaining module can be packaged into a chip, pcb board is reduced, and interface tails off, and size reduces, body
Product reduces;In addition, since the exploitation of PCB layer grade or the exploitation of plate grade are torn open and cut, reliability improves, avoid this process it is possible that
Mistake.
Specifically, controller has one or more groups of CAN, CAN FD and/or Ethernet communications pins.Specifically, root
According to actual needs, controller can design different number and CAN, CAN FD and/or tri- kinds of communication mode difference groups of Ethernet
The communications pins of conjunction.For example, controller can be 1 × CAN and 1 × Ethernet controllers, 2 × CAN and 1 × Ethernet controls
Device, 3 × CAN and 1 × Ethernet controllers processed, 4 × CAN and 1 × Ethernet controllers, 5 × CAN and 1 × Ethernet
Controller, 1 × CANFD and 1 × Ethernet controllers, 2 × CAN FD and 1 × Ethernet controller, 3 × CAN FD and 1
× Ethernet controllers, 4 × CAN FD and 1 × Ethernet controller, 5 × CAN FD and 1 × Ethernet controller, 2
× CAN, 3 × CAN FD and 1 × Ethernet controllers etc..Fig. 3 to Fig. 5 respectively illustrates provided in an embodiment of the present invention be used for
1 × CAN and 1 × Ethernet controller of embedded control system, 3 × CAN FD and 1 × Ethernet controller, 2 ×
CAN, 3 × CAN FD and 1 × Ethernet controllers.It, can be with it should be noted that in addition to the controller that the example above is mentioned
It is that other are directed to the controller that above-mentioned communications pins are configured, the embodiment of the present invention does not limit it especially.
Specifically, intelligence sensor is used for:The physical quantity of measurement is converted into digital signal;To the state of sensor itself
It is diagnosed;The state of physical quantity and sensor itself is issued into control with CAN, CAN FD and/or Ethernet communication modes
Device;Intelligent actuator is used for:Controller is received with the instruction of CAN, CAN FD and/or the transmission of Ethernet communication modes and execution
Instruct corresponding operating;The state of actuator itself is diagnosed;By the state of actuator itself with CAN, CAN FD and/or
Ethernet communication modes issue controller.
Specifically, the function module of the I O process circuit of rejecting includes:I/O event controllers, time correlation I/O signals
Input/output, I/O analog-digital converters, I/O input and output, the I/O bus control units for being communicated with external module.
Here, intelligence sensor and/or intelligent actuator include that I/O event controllers, the I/O signals of time correlation are defeated
Enter/export, I/O analog-digital converters, I/O input and output, the I/O bus control units for being communicated with external module.
Specifically, controller includes:Microprocessor, program data memory, power supply, clock generator, bus system, I/
O interruption controller, watchdog module and for the I/O bus control units of CAN, CAN FD and/or Ethernet communication modes,
Transceiver and interface circuit.
Specifically, microprocessor includes control unit and arithmetical unit, and the microprocessor is 4,8,16 or 32
The microprocessor of position;Described program data storage includes non-volatile read-only memory;The data storage includes non-easy
The property lost or volatile read/write memory;The bus system includes 4 bit wides, the data connection of 8 bit wides, 16 bit wides or 32 bit wides.
For example, the application process of the controller provided in an embodiment of the present invention for embedded control system is as follows:
Controller obtains the numerical value of coolant temperature with CAN and Ethernet communication modes from intelligence sensor;With the number
Value is that input by the pre-set programs of controller calculates cooling fan rotation speed numerical value, and by the cooling fan rotation speed numerical value with CAN
Intelligent actuator is issued with Ethernet communication modes;After intelligent actuator receives control signal, cooling fan rotation speed number is executed
It is worth corresponding control instruction, to drive cooling fan.
Embodiment 2
Fig. 6 is the control method flow signal of the controller provided in an embodiment of the present invention for embedded control system
Figure.As shown in fig. 6, the control method of the controller provided in an embodiment of the present invention for embedded control system, including it is following
Step:
11, controller obtains required physical quantity with CAN, CAN FD and/or Ethernet communication modes from intelligence sensor
Numerical value;
12, to be input with numerical value calculate corresponding control numerical value by the pre-set programs of controller, and by the control numerical value with
CAN, CAN FD and/or Ethernet communication modes issue intelligent actuator;
13, after intelligent actuator receives control signal, the corresponding control instruction corresponding operating of control numerical value is executed.
For example, the control method of the controller provided in an embodiment of the present invention for embedded control system was applied
Journey is as follows:
Controller obtains the numerical value of coolant temperature with CAN and Ethernet communication modes from intelligence sensor;With the number
Value is that input by the pre-set programs of controller calculates cooling fan rotation speed numerical value, and by the cooling fan rotation speed numerical value with CAN
Intelligent actuator is issued with Ethernet communication modes;After intelligent actuator receives control signal, cooling fan rotation speed number is executed
It is worth corresponding control instruction, to drive cooling fan.
In conclusion the controller and its control method provided in an embodiment of the present invention for embedded control system, phase
The prior art is had the following advantages:
1, due to eliminating various I O process circuits, the area of PCB substantially reduces, weight saving, it might even be possible to completely not
Controller is packaged into using the connection of chip and encapsulation technology by chip using PCB, forms chip type controller, so that
The size of controller entirety reduces, weight saving;
2, using this controller, pcb board grade development amount is greatly decreased, it might even be possible to it is developed completely without plate grade, because
Device is exactly a chip in order to control, does not need the exploitation of plate grade.So, the mistake that may be introduced in the exploitation of traditional controller plate grade
It can just not introduce again, so controller reliability can improve;In addition, development is reduced, fee to develop reduces;
3, due to only retaining communication and power supply, controller is greatly decreased with external interface, that is, the pin of controller,
The harness of so connection controller can be greatly decreased, and the cost of harness can reduce, the development meeting of the harness such as arrangement of harness
It reduces, development cost can decline;
4, the embedded controller of current different application is widely different, for example, engine controller and ESP controller have been
Complete different, basic reason is that the device of the physical signal and required drive control acquired needed for different application is different,
If these difference sections are removed controller, moving into intelligence sensor and/or intelligent actuator, different application can use
Identical controller, this controller exactly realize this function, and a controller can be adapted in a variety of different applications,
So that the flexible reinforced of control system;
5, since controller size reduces, weight saving, harness and pin are reduced so that the cost reduction of controller.
The alternative embodiment that any combination forms the present invention may be used, herein no longer in above-mentioned all optional technical solutions
It repeats one by one.
It should be noted that:The controller for embedded control system that above-described embodiment provides is carrying out control business
When, only the example of the division of the above functional modules, in practical application, above-mentioned function can be divided as needed
With by different function module completions, i.e., the internal structure of controller is divided into different function modules, to complete above retouch
The all or part of function of stating.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of controller for embedded control system, which is characterized in that the controller, which retains, realizes logic or mathematics
The circuit with communication function is calculated, rejects I O process circuit, the controller is with CAN, CAN FD and/or Ethernet communication parties
Formula is connected with intelligence sensor and/or intelligent actuator, and the intelligence sensor and/or intelligent actuator are for realizing rejecting
The function of the I O process circuit.
2. controller according to claim 1, which is characterized in that the controller has one or more groups of CAN, CAN FD
And/or Ethernet communications pins.
3. controller according to claim 1, which is characterized in that
The intelligence sensor is used for:The physical quantity of measurement is converted into digital signal;The state of sensor itself is examined
It is disconnected;The state of physical quantity and sensor itself is issued into the control with the CAN, CAN FD and/or Ethernet communication modes
Device processed;
The intelligent actuator is used for:The controller is received to send out with the CAN, CAN FD and/or Ethernet communication modes
The instruction sent simultaneously executes instruction corresponding operating;The state of actuator itself is diagnosed;By the state of actuator itself with institute
It states CAN, CAN FD and/or Ethernet communication modes issues the controller.
4. controller according to claim 1, which is characterized in that the Functional Module of the I O process circuit of rejecting
It includes:I/O event controllers, the I/O signals input/output of time correlation, I/O analog-digital converters, I/O input and output, for
The I/O bus control units of external module communication.
5. controller according to claim 4, which is characterized in that the intelligence sensor and/or intelligent actuator include
The I/O event controllers, the I/O signals input/output of time correlation, I/O analog-digital converters, I/O input and output, for
The I/O bus control units of external module communication.
6. controller according to any one of claims 1 to 5, which is characterized in that the controller includes:Microprocessor,
Program data memory, power supply, clock generator, bus system, I/O interrupt control units, watchdog module and for described
I/O bus control units, transceiver and the interface circuit of CAN, CAN FD and/or Ethernet communication modes.
7. controller according to claim 6, which is characterized in that the microprocessor includes control unit and arithmetic list
Member, the microprocessor that the microprocessor is 4,8,16 or 32;Described program data storage includes non-volatile
Read-only memory;The data storage includes non-volatile or volatile read/write memory;The bus system includes 4
Wide, 8 bit wides, 16 bit wides or 32 bit wides data connections.
8. a kind of control method of controller according to claim 1, which is characterized in that the control method includes following step
Suddenly:
The controller obtains required physical quantity with CAN, CAN FD and/or Ethernet communication modes from the intelligence sensor
Numerical value;
With the numerical value be input calculates corresponding control numerical value by the pre-set programs of the controller, and by the control numerical value with
The CAN, CAN FD and/or Ethernet communication modes issue the intelligent actuator;
After the intelligent actuator receives control signal, the corresponding control instruction corresponding operating of the control numerical value is executed.
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Cited By (1)
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