CN202789469U - Embedded air compressor control system - Google Patents
Embedded air compressor control system Download PDFInfo
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- CN202789469U CN202789469U CN201220433793.2U CN201220433793U CN202789469U CN 202789469 U CN202789469 U CN 202789469U CN 201220433793 U CN201220433793 U CN 201220433793U CN 202789469 U CN202789469 U CN 202789469U
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Abstract
The utility model relates to the field of network deployment and remote monitoring of an air compressor control system. The air compressor control system comprises a data processing unit, a power supply conversion unit, a sampling processing unit, a host communication unit, an output control unit, a liquid crystal display unit, a real-time clock unit, a keyboard operating unit and a data storage unit, wherein the power supply conversion unit supplies power to the host communication unit, the output control unit, the liquid crystal display unit, the real-time clock unit, the keyboard operating unit and the data storage unit; and a main central processing unit (CPU) of the data processing unit adopts AT91SAM9260, is on the basis of an ARM 926EJ-S processor, and is provided with an 8KB command and an 8KB data cache. By using the air compressor control system, the difficult problems that the conventional controller has a simple data processing mode, control units are less, the data processing speed is low, the data interactive mode is single, the parallel processing capacity is poor, the system extensibility is low, the compatibility is low, the historical data storage space is small, the interface is not user-friendly enough and the like are solved; and meanwhile, the embedded system is high in software portability and high in data computing power.
Description
Technical field
The utility model relates to a kind of networking and remote monitor supervision area of control system of air compressor.
Background technique
Along with the successful Application of embedded single-chip computer system at industrial control field, increasing scheme and system adopt this mode to carry out data and process and logic control, the simultaneously development of chip technology, so that one single chip has stronger Processing capacity, and make integrated multiple interfaces become possibility, on the other hand: the needs of application, because to the raising of product reliability, cost, update requirement, so that embedded system is shown one's talent from the application that pure hardware is realized and the use general computer is realized gradually.
Several key characters of embedded system: 1. system kernel is little.Because embedded system generally is applied to compact electronic device, system resource is relatively limited, so kernel is much smaller than traditional operation system.2. specificity is strong.The personalization of embedded system is very strong, software systems wherein and the combination of hardware are very tight, generally to carry out for hardware the transplanting of system, constantly make amendment according to variation and the increase and decrease of system hardware even also need in same brand, with a series of product.3. system simplifies.Embedded system does not generally have the obvious differentiation of systems soft ware and application software, does not require its Functional Design and realizes too complexity, is beneficial to so on the one hand the control system cost, is beneficial to the realization security of system simultaneously yet.4. the systems soft ware of high real-time (OS) is the basic demand of embedded software.And the software requirement solid-state storage, with raising speed; Software code requires high quality and high reliability.5. embedded software developing wants to move towards standardization, just must use the operation system of Multi task.The application program of embedded system can not have operation system directly to move at chip; But for reasonably dispatch Multi task, utilize system resource, system function and and the experts database function interface, the user must match RTOS(Real-Time Operating System voluntarily) development platform, such real-time, the reliability carried out of guarantee program, and reduce the development time, ensure software quality.6. embedded system development needs developing instrument and environment.Owing to itself do not possess the bootstrapping development ability, even the user can not make amendment to program function wherein after design was finished, must have cover developing instrument and an environment just can develop, these instruments and environment generally are based on soft hardware equipment on the general computer and various logic ANALYZER, mixed signal oscillograph etc.The concept that main frame and target machine are often arranged during exploitation, main frame is used for the exploitation of program, and target machine need to replace during exploitation in conjunction with carrying out as last execution machine.
Summary of the invention
Solution traditional controller data processing method of the present utility model is simple, and control unit is few, and processing data speed is slow, data interactive mode is single, and parallel processing capability is poor, and SYS Ex system expanding is little, poor compatibility, the history data store space is little, the difficult problems such as the inadequate hommization in interface.Simultaneously, this built-in system software transplantability is high, and the data computing capability is strong.
For finishing the foregoing invention purpose, the utility model is to realize like this, a kind of embedded control system of air compressor, it is characterized in that: it comprises: data processing unit, power conversion unit, sample processing unit, host communication unit, output control unit, liquid crystal display, real-time clock unit, keyboard operation unit, data storage cell;
Described power conversion unit is host communication unit, output control unit, liquid crystal display, real-time clock unit, keyboard operation unit, data storage cell power supply;
The host CPU of data processing unit adopts AT91SAM9260, and it possesses 8KB instruction and 8KB data buffer storage based on the ARM926EJ-S processor;
Described power conversion unit accesses 220 Ac, is converted to low-voltage AC by transformer, is direct current by the rectifier circuit rectification;
Sample processing unit is barometric pressure and the ambient temperature that adopts pressure sensor and temperature transducer detect respectively external equipment, is converted to voltage signal and carries out the AD conversion through the ADC processor to ARM9SAM9260 behind the filter and amplification;
The host communication unit provides 7 road serial bus and external equipment to carry out communication, 5 ~ 9 synchronous or asynchronous serial communications of full duplex, and traffic rate can reach 115.2kbps, also can be exchanged into 485 Field bus patterns;
Output control unit is to be made of overtemperture control module, blower fan overload control module, main frame overload control module, emergent stop signal input control module; Overtemperture control module, blower fan overload control module, main frame overload control module, emergent stop signal input control are controlled by processor by relay; Data storage cell is divided into internal storage and external storage, and wherein storage inside has: 32KB ROM, and under full speed matrix bus, the monocycle access; Other 2 quick SRAM of 4KB, under the matrix bus, the monocycle accesses at full speed;
The real time clock circuit PCF8583 that the real-time unit of clock uses is a kind of circuit with the thin current charges ability of tiny stream of DALLAS company, main feature is to adopt serial data transmission, can be the power down protection power supply programmable charge function is provided, and can the charge closing function; Adopt common 32.768kHz crystal oscillator;
The keyboard operation unit adopts matrix keyboard, and key arrangement is become matrix form, and in matrix keyboard, every horizontal line and vertical line directly are not communicated with at infall, but are connected by a button.
(1), on the software architecture based on the linux system, realize that initial parameters setting, AD sampled data software analysis calculate.Various interrupt instructions are in time processed in the instruction of Timing Processing master-salve station, and history data store is called.
(2), by the address under each controller unit networking state is set, adopt the data processing method of Ethernet or 232/485 mode, by the far-end control of related protocol realization slave communication and Master Station Software, and reservation USB mode realizes that data read storage.
(3), realize that by image sensor interface, multimedia card interface (MCI) high-precision image processing shows.
(4), realize the switching value control of external connection module by the control of multichannel IO output signal.
Beneficial effect
Can increase ethernet communication, the local networking, the control of giant-screen man-machine interface, history data store is inquired about and is called.Described data processing unit run time behaviour under 190 MHz clock frequencies can reach 210 MIPS; Comprise 8KB SRAM and 32KB ROM, under highest point reason device or bus speed, can realize the monocycle access.Described data processing unit also possesses external bus interface, has comprised all multi-controllers in these external bus interfaces, the static memory that is used for control SDRAM and comprises NAND Flash and CompactFlash.Power conversion unit adopt simultaneously battery in support power supply be real-time clock module power supply; Clock timing behind the assurance system power failure.System's ethernet mac of host communication unit and IEEE 802.3 compatibilities, the data-handling capacity of per second 10M ~ 100M, but full duplex or either-way operation when sending or receive end, can produce interruption.
1. data processing unit
Host CPU adopts AT91SAM9260, and it possesses 8KB instruction and 8KB data buffer storage based on the ARM926EJ-S processor.Run time behaviour can reach 210 MIPS under 190 MHz clock frequencies.This product has comprised 8KB SRAM and 32KB ROM, can realize the monocycle access under highest point reason device or bus speed.This product also possesses external bus interface, has comprised all multi-controllers in these external bus interfaces, the static memory that is used for control SDRAM and comprises NAND Flash and CompactFlash.Its widely the peripheral unit collection comprise USB at full speed main frame and equipment interface, 10/100 Base T ethernet mac, image sensor interface, multimedia card interface (MCI), synchronous serial controller (SSC), USART, master/slave Serial Peripheral Interface (SPI), triple channel 16 bit timing counter (TC), a two-wire interface (TWI) and 10 analog-digital converters of four-way.Three 32 parallel-by-bit i/o controllers can be realized multiplexed with these peripheral unit by stitch, thereby reduced stitch quantity and the peripheral unit DMA passage of equipment, the data throughout on interface and the sheet, between the chip external memory has been risen to highest level.
AT91SAM9260 has the full-function SC system controller that can realize the efficient system management, has wherein comprised a replacement controller, closedown controller, Clock management, high level interrupt controller (AIC), debugging unit (DBGU), cycle intervalometer, WatchDog Timer and real-time timer.
2. power conversion unit
Native system adopts 220 Ac access waies, is converted to low-voltage AC by transformer, is direct current by the rectifier circuit rectification, offers ARM9SAM9260 master chip unit and peripheral equipment power.The normal operation of assurance system.Adopt simultaneously battery in support power supply be real-time clock module power supply.Clock timing behind the assurance system power failure.
3. sample processing unit
System detects respectively barometric pressure and the ambient temperature of external equipment by pressure transducer and temperature transducer, is converted to voltage signal and carries out the AD conversion through the ADC processor to ARM9SAM9260 behind the filter and amplification.
4. host communication unit
System provides 7 road serial bus and external equipment to carry out communication, 5 ~ 9 synchronous or asynchronous serial communications of full duplex, and traffic rate can reach 115.2kbps, also can be exchanged into 485 Field bus patterns.In addition, system's ethernet mac and IEEE 802.3 compatibilities, the data-handling capacity of per second 10M ~ 100M, but full duplex or either-way operation when sending or receive end, can produce interruption;
5. output control unit
Arm processor comes the switching value of control relay to move by IO mouth output high-low level, by these switching values actions, controls the overtemperture control module, blower fan overload control module, main frame overload control module, emergent stop signal input control module etc. are realized relevant intelligent control action logic.
6. liquid crystal display
TFD is the abbreviation of thin film diode.As display modular good brightness and color saturation are arranged, again very power saving.Its main feature is the display capabilities of high image quality, super low-power consumption, miniaturization, dynamic image and reaction time fast.The displaying principle of TFD is that it is that upper each pixel of LCD has been equipped with an independent diode and is used as the control source, because so independent control design, make between each pixel can not interact, therefore on the picture of TFD, can manifest dynamic menu and gay colours without ghost.
7. real-time clock unit
The serial clock circuit of current trend is a lot, such as DS1302, DS1307, PCF8583 etc.The interface of these circuit is simple, cheap, easy to use, is adopted widely.The real time clock circuit PCF8583 that the design uses is a kind of circuit with the thin current charges ability of tiny stream of DALLAS company; main feature is to adopt serial data transmission; can be the power down protection power supply programmable charge function is provided, and can the charge closing function.Adopt common 32.768kHz crystal oscillator.
8. keyboard operation unit
The system keyboard adopts matrix keyboard, can reduce taking of I/O mouth, usually key arrangement is become matrix form, and in matrix keyboard, every horizontal line and vertical line directly are not communicated with at infall, but are connected by a button.Like this, a port (such as the P1 mouth) just can consist of 4*4=16 button, than directly port lines is used for keyboard and has had more one times, and the line number is more, distinguish more obviously, the keyboard such as adding a line again and just can consist of 20 keys directly then can only have more a key (9 key) with port lines.This shows that when the bond number of needs was many, it was rational adopting matrix method to do keyboard.
9. data storage cell
The data storage of ARM system is divided into internal storage and external storage, and wherein storage inside has: 32KB ROM, and under full speed matrix bus, the monocycle access; Other 2 quick SRAM of 4KB, under the matrix bus, the monocycle accesses at full speed.And external storage is by the EBI bus access.Each chip selection signal all has the addressing space of 256M byte.Be divided into NAND Flash storage, the SDRAM storage.
Description of drawings
Fig. 1 is connection diagram of the present utility model.
Embodiment
For further description characteristics of the present utility model, below we are further described in conjunction with diagram:
As shown in the figure, of the present utility model is to be made of data processing unit, power conversion unit, sample processing unit, host communication unit, output control unit, liquid crystal display, real-time clock unit, keyboard operation unit, data storage cell; Described power conversion unit is host communication unit, output control unit, liquid crystal display, real-time clock unit, keyboard operation unit, data storage cell power supply; Comprise also that wherein one is the clock unit power supply for the battery back-up power, the clock timing behind the assurance system power failure.The host CPU of data processing unit adopts AT91SAM9260, and it possesses 8KB instruction and 8KB data buffer storage based on the ARM926EJ-S processor; Data processing unit is core processing unit, has with output control unit, liquid crystal display, real-time clock unit, keyboard operation unit, data storage cell respectively to be connected.
The host CPU of data processing unit adopts AT91SAM9260, and it possesses 8KB instruction and 8KB data buffer storage based on the ARM926EJ-S processor.Run time behaviour can reach 210 MIPS under 190 MHz clock frequencies.This product has comprised 8KB SRAM and 32KB ROM, can realize the monocycle access under highest point reason device or bus speed.This product also possesses external bus interface, has comprised all multi-controllers in these external bus interfaces, the static memory that is used for control SDRAM and comprises NAND Flash and CompactFlash.Its widely the peripheral unit collection comprise USB at full speed main frame and equipment interface, 10/100 Base T ethernet mac, image sensor interface, multimedia card interface (MCI), synchronous serial controller (SSC), USART, master/slave Serial Peripheral Interface (SPI), triple channel 16 bit timing counter (TC), a two-wire interface (TWI) and 10 analog-digital converters of four-way.Three 32 parallel-by-bit i/o controllers can be realized multiplexed with these peripheral unit by stitch, thereby reduced stitch quantity and the peripheral unit DMA passage of equipment, the data throughout on interface and the sheet, between the chip external memory has been risen to highest level.
AT91SAM9260 has the full-function SC system controller that can realize the efficient system management, has wherein comprised a replacement controller, closedown controller, Clock management, high level interrupt controller (AIC), debugging unit (DBGU), cycle intervalometer, WatchDog Timer and real-time timer.
To be system detect respectively barometric pressure and the ambient temperature of external equipment by pressure transducer and temperature transducer to sample processing unit, is converted to voltage signal and carries out the AD conversion through the ADC processor to ARM9SAM9260 behind the filter and amplification.
The host communication unit is that system provides 7 road serial bus and external equipment to carry out communication, 5 ~ 9 synchronous or asynchronous serial communications of full duplex, and traffic rate can reach 115.2kbps, also can be exchanged into 485 Field bus patterns.In addition, system's ethernet mac and IEEE 802.3 compatibilities, the data-handling capacity of per second 10M ~ 100M, but full duplex or either-way operation when sending or receive end, can produce interruption.
The power conversion unit native system adopts 220 Ac access waies, is converted to low-voltage AC by transformer, is direct current by the rectifier circuit rectification, offers ARM9SAM9260 master chip unit and peripheral equipment power.The normal operation of assurance system.Adopt simultaneously battery in support power supply be real-time clock module power supply.Clock timing behind the assurance system power failure.
To be system detect respectively barometric pressure and the ambient temperature of external equipment by pressure transducer and temperature transducer to sample processing unit, is converted to voltage signal and carries out the AD conversion through the ADC processor to ARM9SAM9260 behind the filter and amplification.
Output control unit is arm processor comes control relay by IO mouth output high-low level switching value action, by these switching value actions, control the overtemperture control module, blower fan overload control module, main frame overload control module, emergent stop signal input control modules etc. are realized relevant intelligent control action logic.
Liquid crystal display is that TFD is the abbreviation of thin film diode.As display modular good brightness and color saturation are arranged, again very power saving.Its main feature is the display capabilities of high image quality, super low-power consumption, miniaturization, dynamic image and reaction time fast.The displaying principle of TFD is that it is that upper each pixel of LCD has been equipped with an independent diode and is used as the control source, because so independent control design, make between each pixel can not interact, therefore on the picture of TFD, can manifest dynamic menu and gay colours without ghost.
The real-time clock unit is that the serial clock circuit of current trend is a lot, such as DS1302, DS1307, PCF8583 etc.The interface of these circuit is simple, cheap, easy to use, is adopted widely.The real time clock circuit PCF8583 that the design uses is a kind of circuit with the thin current charges ability of tiny stream of DALLAS company; main feature is to adopt serial data transmission; can be the power down protection power supply programmable charge function is provided, and can the charge closing function.Adopt common 32.768kHz crystal oscillator.
The keyboard operation unit is that the system keyboard adopts matrix keyboard, can reduce taking of I/O mouth, usually key arrangement is become matrix form, and in matrix keyboard, every horizontal line and vertical line directly are not communicated with at infall, but are connected by a button.Like this, a port (such as the P1 mouth) just can consist of 4*4=16 button, than directly port lines is used for keyboard and has had more one times, and the line number is more, distinguish more obviously, the keyboard such as adding a line again and just can consist of 20 keys directly then can only have more a key (9 key) with port lines.This shows that when the bond number of needs was many, it was rational adopting matrix method to do keyboard.
Data storage cell is that the data storage of ARM system is divided into internal storage and external storage, and wherein storage inside has: 32KB ROM, and under full speed matrix bus, the monocycle access; Other 2 quick SRAM of 4KB, under the matrix bus, the monocycle accesses at full speed.And external storage is by the EBI bus access.Each chip selection signal all has the addressing space of 256M byte.Be divided into NAND Flash storage, the SDRAM storage.
Adopt the control system of ARM9 embedded platform, based on the function structure of ARM9 system: (1), realize multi-channel data acquisition by 10 analog-digital converters of the inner four-way of ARM9.(2), the full-function SC system controller of efficient system management (has wherein comprised a replacement controller, closedown controller, Clock management, high level interrupt controller (AIC), debugging unit (DBGU), cycle intervalometer, WatchDog Timer and real-time timer.) realize that the timing acquiring storage calls, upload historical data.
(3), realize the switching value control of external connection module by the control of multichannel IO output signal.(4), image sensor interface, multimedia card interface (MCI) realize that high-precision image processing shows.
(5), USB at full speed main frame and equipment interface, 10/100 Base T ethernet mac,, synchronous serial controller (SSC), USART, master/slave Serial Peripheral Interface (SPI) realize Ethernet, 232/485, USB, the communication of the variety of ways such as spi bus is mutual, master slave mode switches, mouthful communication.232/485 Communication Control, clock timing, historical data is called etc.
(6), three 32 parallel-by-bit i/o controllers can be realized multiplexed with peripheral unit by stitch, thereby reduced stitch quantity and the peripheral unit DMA passage of equipment, the data throughout on interface and the sheet, between the chip external memory has been risen to highest level.
Claims (5)
1. embedded control system of air compressor, it is characterized in that: it comprises: data processing unit, power conversion unit, sample processing unit, host communication unit, output control unit, liquid crystal display, real-time clock unit, keyboard operation unit, data storage cell consist of;
Described power conversion unit is host communication unit, output control unit, liquid crystal display, real-time clock unit, keyboard operation unit, data storage cell power supply;
The host CPU of data processing unit adopts AT91SAM9260, and it possesses 8KB instruction and 8KB data buffer storage based on the ARM926EJ-S processor;
Described power conversion unit accesses 220 Ac, is converted to low-voltage AC by transformer, is direct current by the rectifier circuit rectification;
Sample processing unit is barometric pressure and the ambient temperature that adopts pressure sensor and temperature transducer detect respectively external equipment, is converted to voltage signal and carries out the AD conversion through the ADC processor to ARM9SAM9260 behind the filter and amplification;
The host communication unit provides 7 road serial bus and external equipment to carry out communication, 5 ~ 9 synchronous or asynchronous serial communications of full duplex, and traffic rate can reach 115.2kbps, also can be exchanged into 485 Field bus patterns;
Output control unit is to be made of overtemperture control module, blower fan overload control module, main frame overload control module, emergent stop signal input control module; Overtemperture control module, blower fan overload control module, main frame overload control module, emergent stop signal input control are controlled by processor by relay; Data storage cell is divided into internal storage and external storage, and wherein storage inside has: 32KB ROM, and under full speed matrix bus, the monocycle access; Other 2 quick SRAM of 4KB, under the matrix bus, the monocycle accesses at full speed;
The real time clock circuit PCF8583 that the real-time unit of clock uses is a kind of circuit with the thin current charges ability of tiny stream of DALLAS company, main feature is to adopt serial data transmission, can be the power down protection power supply programmable charge function is provided, and can the charge closing function; Adopt common 32.768kHz crystal oscillator;
The keyboard operation unit adopts matrix keyboard, and key arrangement is become matrix form, and in matrix keyboard, every horizontal line and vertical line directly are not communicated with at infall, but are connected by a button.
2. a kind of embedded control system of air compressor according to claim 1, it is characterized in that: described data processing unit run time behaviour under 190 MHz clock frequencies can reach 210 MIPS; Comprise 8KB SRAM and 32KB ROM, under highest point reason device or bus speed, can realize the monocycle access.
3. a kind of embedded control system of air compressor according to claim 2, it is characterized in that: described data processing unit also possesses external bus interface, all multi-controllers have been comprised in these external bus interfaces, the static memory that is used for control SDRAM and comprises NAND Flash and CompactFlash.
4. a kind of embedded control system of air compressor according to claim 1 is characterized in that: power conversion unit adopt simultaneously battery in support power supply be the real-time clock module power supply; Clock timing behind the assurance system power failure.
5. a kind of embedded control system of air compressor according to claim 1, it is characterized in that: system's ethernet mac of host communication unit and IEEE 802.3 compatibilities, the data-handling capacity of per second 10M ~ 100M, but full duplex or either-way operation, when sending or receive end, can produce interruption.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220433793.2U CN202789469U (en) | 2012-08-29 | 2012-08-29 | Embedded air compressor control system |
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| CN201220433793.2U CN202789469U (en) | 2012-08-29 | 2012-08-29 | Embedded air compressor control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788006A (en) * | 2012-08-29 | 2012-11-21 | 上海昶嘉工业设备有限公司 | Embedded air compressor control system |
| CN103557580A (en) * | 2013-07-27 | 2014-02-05 | 高清鸿 | Intelligent energy-saving thermostat |
| US9567976B2 (en) | 2013-09-18 | 2017-02-14 | Delta Electronics, Inc. | Wind turbine control system and control method thereof |
-
2012
- 2012-08-29 CN CN201220433793.2U patent/CN202789469U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788006A (en) * | 2012-08-29 | 2012-11-21 | 上海昶嘉工业设备有限公司 | Embedded air compressor control system |
| CN103557580A (en) * | 2013-07-27 | 2014-02-05 | 高清鸿 | Intelligent energy-saving thermostat |
| US9567976B2 (en) | 2013-09-18 | 2017-02-14 | Delta Electronics, Inc. | Wind turbine control system and control method thereof |
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Granted publication date: 20130313 |