CN202837935U - Pickly ash baking control system - Google Patents
Pickly ash baking control system Download PDFInfo
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- CN202837935U CN202837935U CN 201220566369 CN201220566369U CN202837935U CN 202837935 U CN202837935 U CN 202837935U CN 201220566369 CN201220566369 CN 201220566369 CN 201220566369 U CN201220566369 U CN 201220566369U CN 202837935 U CN202837935 U CN 202837935U
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Abstract
The utility model discloses a pickly ash baking control system. The pickly ash baking control system is characterized by comprising a temperature detecting module, a display module, a control executive module and a heating module which are all controlled by a microcontroller, wherein the temperature detecting module is use for detecting the temperature in baking; the display module is used for displaying the detected temperature in form of numbers and curves; the control executive module is used for controlling the opening degree of a skylight motor, the air volume of a dehumidifying motor and the air volume of an air blast motor; and the heating module is used for heating the air in baking. The pickly ash baking control system is combined with other mechanical control structures based on the advanced DSP (Digital Signal Processor) data processing technology, and the comprehensive factors of improving the baking quality of the pickly ash and saving the energy and reducing the consumption and the like are take fully into account, so that the optimization of the whole system is realized.
Description
Technical field
The utility model relates to Real-Time Monitoring and the automaton of Chinese prickly ash moisture in a kind of bake process.
Background technology
Drying is the important means of agricultural byproducts processing and storage, also is to use very widely method of operating during agricultural byproducts are produced.At present, the main method of China rural area Chinese prickly ash drying still adopts the natural drying method.Because natural drying Chinese prickly ash required time is oversize, is subject to easily the impact of different weather, is unfavorable for gathering and storing of Chinese prickly ash, and the existing Chinese prickly ash drying room in rural area relies on manually operated mode fully, exist uneven drying even, the problem such as rate of drying is relatively slow, and energy loss is larger.Be mainly manifested in: 1. traditional Chinese prickly ash drying means efficient is low, is subjected to the constraint of weather larger.Traditional Chinese prickly ash is drying to be to concentrate airing or dry in the shade at shady and cool dry place, and required time is long, generally needs 6～10 days, and weather is had relatively high expectations, if run into rainy weather during airing, problem causes damage with regard to occurring easily going mouldy etc.2. dry mass can not well be guaranteed, energy resource consumption is large, and labor capacity is large, streaking.China's Chinese prickly ash planting scale with through surpassing more than 10 ten thousand hectares, produces about 120,000 tons in Chinese prickly ash per year at present with annual 20%～30% speed increase, formed an annual value of production and reached huge Distinctive Agricultural Products about 4,000,000,000 yuan.Wherein take Hancheng Region, Shaanxi, Laiwu in Shandong province and macromycetes resources inLonglan area of Gansu output as large, its total production surpasses 1/2 of the whole nation.Chinese prickly ash is one of the traditional import flavouring in the areas such as Southeast Asia, Japan, Korea S and medicinal material, and in recent years, China's Chinese prickly ash is also squeezed into European ﹠ American Market gradually, and in order to stand on the invincible position in the international market is striven unexpectedly, Chinese prickly ash industrialization drying is extremely urgent.3. the method for traditional Chinese prickly ash drying such as airing, fiery pit, oven dry, because drying cycle is long, unhygienic, to reasons such as environments, oneself can not satisfy the needs of Chinese prickly ash industrialization drying.4. adopt the dry Chinese prickly ash of automatic drying technology have rate of drying keep soon, to greatest extent product nutritional labeling, safety and sanitation, financial cost cheap, be easy to promote etc.
Have at present 5 patents relevant with Chinese prickly ash baking Based Intelligent Control: " the wet Chinese prickly ash of vacuum drier and oven dry thereof reclaims the method for volatile oil " (200710017294) is characterized in that: vacuum dryer is by heating plant, vacuum drying chamber, the condensing cooling circulation system, condensation water deposit separating tank, power panel five part module compositions." method of preparing flocculant agent from residue of pepertree through dry prodess of microwave radiation " (200410094067) is characterized in that: microwave irradiation time 5 seconds～10 minutes, 100 watts～800 watts of power are carried out in reaction under the microwave condition.The cationic etherifying agent consumption is Chinese prickly ash with the ratio of cationic etherifying agent is in 1 to 0.5～3 scopes." electric driven rotary disk type pepper dryer " (03241937) is characterized in that: drying baker is cylindrical, and chamber door is installed in the front, and a side has the hot blast import to be connected with draught distributing box, and opposite side is equipped with the outlet of hydrofuge gas." thermostat galvanothermy Chinese prickly ash dryer " (01246839) is characterized in that: electric power adds the Chinese prickly ash dryer that hot-air impels fresh pepper dehydration, by double-layer plate packing course shell, two groups of hot blasts heat source case that spirals." pepper drying unit " (97239797), it is characterized in that: have a heating cabinet to be connected with drying baker, heating cabinet is comprised of hot air chamber, warm-air pipe, heating furnace and fan blower, and hot air chamber is positioned at the top of heating furnace, there are some horizontal warm-air pipes its inside, and warm-air pipe is hollow.The major function of these patents all is design and the formulation of pepper drying unit, and is relatively relatively poor on automatic control hierarchy, the mode that mostly still adopts man-machine control to combine.
In the publication of publishing, there are at present more than ten pieces of papers relevant with Chinese prickly ash Quality Detection and intelligence control method: " Chinese prickly ash appearance quality detection and MATLAB thereof based on computer vision realize " (Transactions of the Chinese Society of Agricultural Engineering, 2008, (01)), " based on the Chinese prickly ash appearance quality detection of machine vision and SVM " (2009 nationwide virtual instrument conference collection of thesis (two)), " based on the research of the Chinese prickly ash drying room automatic temperature control system of fuzzy " (commemorating that Chinese agriculture Engineering society sets up 30 anniversaries and Chinese agriculture Engineering society Annual Conference (CSAE 2009) in 2009 collection of thesis), " based on the Chinese prickly ash drying room temperature Design of Automatic Control System of ARM " (agricultural research, 2009, (09)), " based on Chinese prickly ash drying room remote data acquisition and the supervisory system of GPRS " (agricultural research, 2009, (09)), " comparative experimental research of Chinese prickly ash constant temperature and temperature control heated-air drying " (Transactions of the Chinese Society of Agricultural Engineering, 2008, (02)), " experimental study of Chinese prickly ash microwave drying mathematical model " (agricultural research, 2008, (12)), " experimental study of Chinese prickly ash microwave intermittently drying " (agricultural research, 05 phase in 2008), " the vacuum microwave drying process parameter optimizing of Chinese prickly ash " (Southwestern University's journal (natural science edition), 2008, (07)), " test of Chinese prickly ash Characteristics of Microwave Drying " (agricultural mechanical journal, 2007, (03)) etc., these papers have been described Chinese prickly ash at Mathematical Models, Quality Detection, the baking means, the research of baking room temperature Humidity Detection and warning aspect.
The utility model content
The purpose of this utility model provides the good Chinese prickly ash baking control system of a kind of cured effect.
To achieve these goals, by the following technical solutions:
A kind of Chinese prickly ash baking control system is characterized in that: described system comprises and is subject to microprocessor controls:
Temperature detecting module: the temperature to baking detects;
Display module: the temperature that detects is carried out numeral and curve demonstration;
The control execution module: the aperture to the skylight motor is controlled, the air quantity of dehumidifier motor is controlled, the air quantity of blower motor is controlled;
Heating module: baking gas is heated.
Described system also comprises
Memory module: the data to control system are carried out record;
The GPRS Wireless alarm module: the message notifying to user's transmission phase is finished sends the fault prompting to the user when breaking down;
Security module: comprise overvoltage, overcurrent, overtemperature prote module.
Described heating module comprises electric heater and coal well heater.
Compared to existing technology, the utlity model has following beneficial effect:
1, by the baking of two ends formula, the mode that adopts digital transducer to carry out data acquisition, minimizing system have been simplified the circuit design of system to the processing procedure of detection simulating signal, have greatly saved the cost of system;
2, user's operation is in use simplified at operating system figure interface elegant in appearance, often is fit to the use colony of different knowledge levels;
3, because system has adopted overvoltage, overcurrent, Overtemperature protection circuit in circuit design; adopted GPRS long distance wireless type of alarm at Functional Design; this serial safeguard measure has strengthened the security of system when operation, effectively reduction accident occurrence probability.
Description of drawings
Fig. 1 is that two stage running figure are set in the Chinese prickly ash baking;
Fig. 2 is the structural drawing of system in the utility model;
The synoptic diagram of display interface when Fig. 3 is system's operation;
Fig. 4 is the structural representation that the GPRS module is connected with controller.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is made further function declaration.
Referring to Fig. 2, hardware circuit module structure of the present utility model comprises: the compositions such as 32 bit DSP micro controller modules, DS18B20 temperature collect module, keyboard load module, SD card memory module, security alarm reminding module, TFT_LCD display module, control execution module, electrical heating module.
1, microcontroller
The 32 8-digit microcontroller TMS320F28027 that select TI company to produce are system's control master chip; This chip belongs to novel Piccolo TMS320F2802x/3x MCU series, has adopted present up-to-date architecture technology achievement and enhancement mode peripheral hardware.The TMS320F28027 number of pins is 48 pin LQPF flat package, the peripheral hardware resources such as PWM on the sheet (nearly 8 road PWM output) and ADC (nearly 16 passage ADC), realize the closed-loop control of electric current by corresponding control algolithm in the coupling system, its sharpest edges are and can in using cheaply, bring 32 real-time data-handling capacities and control function.
Referring to Fig. 2, TMS320F28027 minimum systematic module running frequency is 60MHZ, mainly finishes the processing of sensor DS18B20 Gather and input data message and the each several part control circuit is exported the control executive signal.Because chip internal has integrated 32kb * 16-position FLASH, 6kb * 16-position SRAM, 1kb * 16-position OTP ROM, wherein FLASH, OTP ROM and 4K SRAM are password-protected, the protection user program.On-Chip peripheral comprises: 8 road EPWM; 4 road HRPWM; 13 passages, 12, the ADC module of 216.67ns switching time, range 0～3.3V; 1 road SPI synchronous serial interface; 1 road SCI asynchronous serial port; 1 road IIC serial ports and 31 GPIO mouths etc.System comprises 2 kinds of power supply Power supply modes: I/O power supply 3.3V, core power supply 1.8V.Because it is the 1.8V module that inside is integrated with the 3.3V power source transition, so chip only needs the 3.3V input, saved the input of 1.8V power supply.
2, DS18B20 temperature detecting module
Referring to Fig. 2, realize that the collection of digital temperature is by sensor DS18B20 the I/O pin level of microprocessor TMS320F28027 to be read and write to finish, connected mode is the unibus communication mode.Utilize the microprocessor delay procedure to produce time-delay, clocking value unit reaches the sequential chart of 1 μ s, finishes the work such as initialization, reading and writing, CRC check of DS18B20.If a plurality of DS18B20 are arranged on same bus, system searches the DS18B20 quantity on the bus automatically before each image data, sends 64 CRC check codes of each DS18B20, finds corresponding sensor.
3, TFT_LCD display module
Referring to Fig. 2, the TFT_LCD display module adopts Shenzhen to open up TCB8000C control panel and T8000 controller that general little Science and Technology Ltd. produces, this controller is provided with 8 MCU I/O interface (default setting) or 16 bus interface, data layout with 16 RGB can be realized the demonstration of 6.5 ten thousand kinds of colors, the built-in ASCII character of controller, other has 256KB ROM Chinese word library version.The characteristics of control panel comprise: single 5V Power supply; Built-in backlight drive circuit; Embed 64K * 16SRAM; Built-in LCD DC-DC booster circuit; 3.3V MCU interface and logical I/O (can bear 5V); Can directly connect LMT035DNAFWU TFT LCD MODULE.
4, electrical heating module
Referring to Fig. 2, in the process of Chinese prickly ash drying room work, the temperature rise and fall in the drying room have inertia, traditional electrical heating temperature control mode adopts electromagnetic relay as on-off element, and its shortcoming is that the life-span is short, switching speed is slow, and temperature variation inertia is large, and the control effect is undesirable.The TSS25G41S solid-state relay that native system is used TOSHIBA instead is used as temperature control element, the contactless switch element that solid-state relay is comprised of solid-state components, utilize the switching characteristic of electronic component to come disconnection and the connection of control circuit, reliable operation, life-span is long, switching speed is fast, can realize comparatively desirable temperature control effect.
5, control execution module
Referring to Fig. 2, the temperature variation of controlled device is how much deciding by the heat that inputs to controlled device and controlled device distribute heat.That can adopt for cooling in the drying room to reduce heating module adds heat and dehumidifier motor from drying room inside to outside heat extraction.Three tunnel output quantities are arranged in system, wherein have two the tunnel to be the size of control intake, the one tunnel is electric heating circuit, has all adopted identical control method--width modulation (PWM) method, and on hardware circuit, also adopted identical design.
6, overvoltage, overcurrent, Overtemperature protection circuit
Referring to Fig. 2, holding circuit is to utilize the break-make of photoelectrical coupler whether to control.When voltage was normal, photoelectrical coupler is no-output almost, and the VT pipe instead ends partially.When certain reason raise circuit voltage, the sample circuit secondary voltage increased, and photoelectrical coupler satisfies condition of work.The optocoupler output current increases, and VT pipe bias voltage is raise and saturation conduction, and topworks's actuating of relay adhesive is cut off the electricity supply and then reached the purpose of protection electrical equipment.If Failure elimination, voltage are thereupon normal, this circuit is deactivated immediately, the restoring circuit power supply.
7, GPRS Wireless alarm module
GPRS is the abbreviation of GPRS (General Packet Radio Service), is a kind of wireless, packet-switched technology based on gsm system, provides end to end, the wireless IP of wide area connects.Have message transmission rate height, always online, the advantage such as charge by flow.
Referring to Fig. 4, in the drawings, the GPRS module adopts the MC55 GPRS of Siemens Company module, and this module has the characteristics such as volume is little, reliability is high, ease for use is good, embedded ICP/IP protocol, is well suited in wireless terminal as communication module.The URAT of TMS320F28027, to the different data of GPRS output and is sent to by long distance wireless on user's the mobile phone as data output in this circuit module.
After a plurality of digital temperature sensor DS18B20s are converted to digital electric signal with the temperature analog signal of sensing, be input to temperature detecting module, be transferred to microcontroller TMS320F28027 module by temperature detecting module, carry out the processing of data, be transported to the demonstration that the TFT_LCD display module carries out temperature digital and curve through the data one tunnel of handling well.The self-adjusting of fuzzy parameter is carried out on another road again, the parameter of adjusting outputs to control execution module and heating module, and the control execution module is carried out later on the aperture control of skylight motor, the air quantity control of dehumidifier motor, the air quantity control of blower motor receiving order; And heating module is carried out the adjustment that adds heat.
Further, it also comprises some ancillary methods, as: SD card memory module is accurately recorded the total data of the every task of control system, so that the researchist further analyzes the baking data from now on; Security module comprise system in the course of the work line voltage raise and voltage-stabilizing system breaks down system produced when endangering circuit is carried out overvoltage protection; Crossing current circuit can prevent that the internal system electric current is excessive and cause that system power is very large and burn the PCB circuit board of circuit and the effect that holding circuit is played in subelement; The GPRS Wireless alarm module is being born on the one hand system and is automatically being sent a short message at complete rear line of each stage of baking task, point out the state of work in the present drying room, bearing on the other hand and when the internal system sensor detects the system failure, automatically sending the short message alarm; The coal type of heating adopts the form of traditional heating boiler, and this mainly is because in actual application, and some areas, rural area are appointed and so remained with briquette boiler, and this type of heating has very big advantage with low cost, and the easier consumer of allowing accepts.
After in an insulated building native system being installed, at first, adopting type of heating is the 3kW strip heater, adopts two stage heated at constant temperature modes, and the wind speed setting degree is 1.4 m/s, and the T.T. of heating is 300min.Secondly, power on system's operation and self check to system, after self check was complete, system showed initialization interface figure, display system design information, after program runs to herein, will wait for that the user presses system's start key, wait for the data acquisition and controlling program that enters system.Again, the user presses system's start key, system enters under as shown in Figure 3 the surface chart automatically, the relevant informations such as date and time of the PWM value that the humidity value of real time temperature value, temperature deviation and current system that No. 2 sensors of prompting user gather, humidity deviation, blower motor, motor exhaust rotate, running situation, operation.
As shown in Figure 1, when baking, be divided into two stages, the phase one is the stage of drying, and temperature controlling range is 45 ℃～51 ℃, and 120min holds time.Subordinate phase is that the baking stage range of control is 68 ℃～71 ℃, and 150min holds time.This one-phase is that system heats up rapidly after the phase one oven dry is shunk pricklyash bark and begun breach to occur, makes the interior temperature of drying room rise to 65 ℃～71 ℃, and design temperature is 68 ℃, and keeps 120～150 min.
Claims (3)
1. Chinese prickly ash baking control system is characterized in that: described system comprises and is subject to microprocessor controls:
Temperature detecting module: the temperature to baking detects;
Display module: the temperature that detects is carried out numeral and curve demonstration;
The control execution module: the aperture to the skylight motor is controlled, the air quantity of dehumidifier motor is controlled, the air quantity of blower motor is controlled;
Heating module: baking gas is heated.
2. Chinese prickly ash baking control system as claimed in claim 1, it is characterized in that: described system also comprises
Memory module: the data to control system are carried out record;
The GPRS Wireless alarm module: the message notifying to user's transmission phase is finished sends the fault prompting to the user when breaking down;
Security module: comprise overvoltage, overcurrent, overtemperature prote module.
3. Chinese prickly ash baking control system as claimed in claim 1 or 2, it is characterized in that: described heating module comprises electric heater and coal well heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566369 CN202837935U (en) | 2012-10-31 | 2012-10-31 | Pickly ash baking control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566369 CN202837935U (en) | 2012-10-31 | 2012-10-31 | Pickly ash baking control system |
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| Publication Number | Publication Date |
|---|---|
| CN202837935U true CN202837935U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220566369 Expired - Fee Related CN202837935U (en) | 2012-10-31 | 2012-10-31 | Pickly ash baking control system |
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| CN (1) | CN202837935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945008A (en) * | 2012-10-31 | 2013-02-27 | 西南大学 | Control system for pepper baking |
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2012
- 2012-10-31 CN CN 201220566369 patent/CN202837935U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945008A (en) * | 2012-10-31 | 2013-02-27 | 西南大学 | Control system for pepper baking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20141031 |
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| EXPY | Termination of patent right or utility model |