CN102722201A - Automatic baking monitoring system and method - Google Patents
Automatic baking monitoring system and method Download PDFInfo
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- CN102722201A CN102722201A CN2012102210240A CN201210221024A CN102722201A CN 102722201 A CN102722201 A CN 102722201A CN 2012102210240 A CN2012102210240 A CN 2012102210240A CN 201210221024 A CN201210221024 A CN 201210221024A CN 102722201 A CN102722201 A CN 102722201A
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Abstract
The invention provides an automatic baking monitoring system and method which are used for monitoring a food baking process in an oven. The system mainly comprises a central control computer and an acquisition control subsystem which is in data communication with the central control computer, wherein the acquisition control subsystem comprises a baking heater, ventilation adjustment equipment, a humidity and temperature sensor, a proportion integration differentiation (PID) controller and an electronic nose. By using the automatic baking monitoring system and the automatic baking monitoring method, actual temperature, actual humidity and actual gas components in the food baking process in the oven can be automatically acquired in real time through circulating judgment and control; a baking stage of foods can be accurately judged in real time according to the actual gas components in the oven; the temperature and the humidity in the oven are correspondingly adjusted to be equal to a baking temperature set value and a baking humidity set value which correspond to the baking stage of the foods; adaptive adjustment monitoring of the food baking process is realized; and the accuracy and the baking quality of a baking process are improved.
Description
Technical field
The invention belongs to computer technology and technical field of automatic control, relate in particular to a kind of automatic baking supervisory system and method.
Background technology
In world's overwhelming majority of countries, no matter be people's staple food, or non-staple food, baked product all occupies crucial position.Baked product is also referred to as baked goods, has both comprised the cereal preparation through baking processing, and cakes such as acute pyogenic infection of finger tip bread, biscuit usually comprise the bacon of baking, the food of other kinds such as tealeaves of curing again.
China is since reform and opening-up; The bakery product industry has obtained development faster, and along with further developing of China's economic, the consumer also demonstrates high-grade day by day to the demand of bakery product; The requirement of quality, this has higher requirement to the enterprise that bakes industry.But present China bakes industry and still has a lot of problems, how to present form, takes corresponding measure to promote that the development of the industry is particularly important.
Other country of the baked goods and the world of China compares now, also has sizable gap.No matter be the baking process technology, be baked into quality, or production scale, product category aspect, also have a large amount of work to do.
Baking is an important step of decision baked goods final mass and availability; Quality factors such as the outward appearance commercial grade index of baking final mass such as color, gloss, oil content; And inherent chemical constitution and the jealous index of fragrance, have only through just showing after the baking modulation.Conventional artificial baking need be carried out on-site supervision by the workman; In the process of baking, the overwhelming majority relies on artificial experience and manual operations, and not only required labour intensity is big; And the risk of bearing is high; Baking technology is difficult to grasp, phenomenon ubiquities such as baking error, roasting paste, and baking loss is comparatively serious.
In recent years; Automatic or the semi-automatic development of China's baking industry also is in the elementary starting stage; In the production of automatic or semi-automatic roasting plant; Urgent problem is more correctly to implement baking process, reduce the baking recruitment, reduce labor intensity, improve the baking benefit; Its solution is to adopt supporting automatic control system; Partly or entirely replace artificial baking; The baking process of accurate operative normization; At utmost less baking labour intensity and management cost improve baking quality.
Present automatic or semi-automatic baking box has only designed several kinds of time-based baking patterns usually, and every kind of baking pattern is provided with fixing stoving time, and progress is controlled the temperature and humidity of baking in time.But this baking control mode is difficult to adapt to flexibly different baking applications environment, can not adjust the control to baking temperature and humidity according to the actual baking progress self-adaptation of food, and the accuracy of baking process and baking quality all are more difficult to get assurance.
Summary of the invention
To the problems referred to above that exist in the prior art; Baking control technology self-adaptation of the prior art adjustment performance is limited in order to solve, the accuracy of baking process and the problem that baking quality is more difficult to get assurance; The invention provides a kind of automatic baking supervisory system and method; To promote self-adaptation adjustment performance, better guarantee the accuracy and the baking quality of baking process to the roasting food process.
For realizing above-mentioned purpose, the present invention has adopted following technological means:
A kind of automatic baking supervisory system is used for the roasting food process in the baking box is monitored; This system mainly by middle control computer and with said in the acquisition controlling subsystem that is connected of control computer data communication constitute; Said acquisition controlling subsystem comprises baking heater, ventilation conditioning equipment, Temperature Humidity Sensor, PID controller and Electronic Nose; Said baking heater places in the baking box, is electrically connected with the PID controller, is used for according to the control operation of PID controller the food in the baking box being toasted heating; Said ventilation conditioning equipment is electrically connected with the PID controller, is used for regulating the switching of baking box vent passages and the size of ventilation according to the control operation of PID controller; Said Temperature Humidity Sensor places in the baking box, is connected with the PID controller data, is used to gather actual temperature and the actual humidity in the baking box and send the PID controller to; Said PID controller also carries out data communication with middle control computer and is connected; Be used for receiving the baking temperature setting value and baking humidity set point that control computer sends; And obtain actual temperature and the actual humidity in the baking box that Temperature Humidity Sensor gathers; According to actual temperature in the baking box and actual humidity baking heater and ventilation conditioning equipment are carried out control operation, make the temperature and humidity in the baking box reach baking temperature setting value and baking humidity set point respectively; Said Electronic Nose is carried out data communication with middle control computer and is connected, and is used for gathering the actual gas composition in the baking box and sending control computer to; Control computer stores by the roasting food monitor message table of cooking food in said, record the characteristic gas composition that distributed in each baking stage institute correspondence by cooking food in the said roasting food monitor message table and by cooking food in corresponding baking temperature setting value of each baking stage with toast humidity set point; Middle control computer is used to obtain the interior actual gas composition of baking box that Electronic Nose is gathered; With the actual gas composition in the baking box with write down in the roasting food monitor message table of cooking food by cooking food each baking stage the corresponding characteristic gas composition that distributes compare; Characteristic gas composition according to the actual gas in the baking box becomes branch to comprise was confirmed by the residing baking of the cooking food stage; And then definite by the roasting food monitor message table of cooking food, and will be sent to the PID controller by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point through inquiry.
In the above-mentioned automatic baking supervisory system, further, said acquisition controlling subsystem also comprises monopod video camera; Said monopod video camera places in the baking box, carries out data communication with middle control computer and is connected, and is used for gathering the video image in the baking box and sending middle control computer to according to the control operation of control computer; Control computer also is used for monopod video camera is carried out control operation in said, obtains the video image in the baking box of monopod video camera collection and carries out display process.
In the above-mentioned automatic baking supervisory system; Further; Said acquisition controlling subsystem has a plurality of; Each acquisition controlling subsystem is connected with middle control computer data communication respectively, and each acquisition controlling subsystem is used for corresponding baking box, thereby realizes the roasting food process in a plurality of baking boxs is monitored.
A kind of automatic baking method for supervising adopts aforesaid automatic baking supervisory system to monitor; This method comprises the steps:
1) storage and setting in middle control computer in advance by the roasting food monitor message table of cooking food, record the characteristic gas composition that distributed in each baking stage institute's correspondence by cooking food in the said roasting food monitor message table and by cooking food in corresponding baking temperature setting value of each baking stage with toast humidity set point;
2) will be put into baking box by cooking food, start the roasting food process;
3) Electronic Nose is gathered the actual gas composition in the baking box in real time and is sent middle control computer to; Temperature Humidity Sensor is gathered actual temperature and the actual humidity in the baking box in real time and is sent the PID controller to;
4) control computer obtains the interior real gas composition of baking box that Electronic Nose is gathered in; With the real gas composition in the baking box with write down in the roasting food monitor message table of cooking food by cooking food each baking stage the corresponding characteristic gas composition that distributes compare; Characteristic gas composition based on the real gas in the baking box becomes branch to comprise was confirmed by the residing baking of the cooking food stage; And then definite by the roasting food monitor message table of cooking food, and will be sent to the PID controller by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point through inquiry;
5) baking temperature setting value that control computer sent during the PID controller received and baking humidity set point; And obtain actual temperature and the actual humidity in the baking box that Temperature Humidity Sensor gathers; Based on actual temperature in the baking box and actual humidity baking heater and ventilation conditioning equipment are carried out control operation; Allow baking heater the food in the baking box toasted heating based on the control operation of PID controller; Allow the ventilation conditioning equipment regulate the switching of baking box vent passages and the size of ventilation, thereby make the temperature and humidity in the baking box reach baking temperature setting value and baking humidity set point respectively based on the control operation of PID controller;
6) circulation execution in step 4 ~ 5 finishes until the roasting food process.
Than prior art, the present invention has following beneficial effect:
1, automatic baking supervisory system of the present invention; Can under the environment of unmanned or few man on duty, automatically gather the actual temperature in the roasting food process in the baking box, actual humidity and actual gas composition in real time; Accurately judge the residing baking of the food stage in real time according to the actual gas composition in the baking box; And the temperature and humidity in the corresponding adjusting baking box makes it to reach corresponding baking temperature setting value and baking humidity set point of residing baking stage of food; Realization is monitored the self-adaptation adjustment of roasting food process, and then has improved the accuracy and the baking quality of baking process.
2, automatic baking supervisory system of the present invention can also combine the video camera technology; Color and luster, proterties variation in bake process observed and record to food in the baking box; So that the technician controls the overall process of roasting food technology better, help further to promote baking quality.
3, automatic baking supervisory system of the present invention realizes the joint-monitoring to the roasting food process in a plurality of baking boxs through the Computer Data Communication technology, has further reduced the labour intensity of baking process control, also helps to reduce the system scale construction cost.
4, automatic baking method for supervising of the present invention is easy to grasp for operating personnel; Need not operating personnel and know a large amount of, complete baking technology; Only need just can realize high-quality roasting food process monitoring through simple work; Effectively promoted the development of specialized baking, improved product baking quality and benefit, the efficiency of baking operation is greatly improved.
Description of drawings
Fig. 1 toasts the architecture block diagram of a kind of embodiment of supervisory system automatically for the present invention;
Fig. 2 toasts the FB(flow block) of method for supervising automatically for the present invention;
Fig. 3 toasts a kind of architecture block diagram of improving embodiment of supervisory system automatically for the present invention;
Fig. 4 toasts the another kind of architecture block diagram of improving embodiment of supervisory system automatically for the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is further described.
The invention provides a kind of automatic baking supervisory system; Be used for the roasting food process in the baking box is monitored, baking control technology self-adaptation of the prior art adjustment performance is limited to solve, the accuracy of baking process and the problem that baking quality is more difficult to get assurance.As shown in Figure 1, automatic baking supervisory system of the present invention mainly is made up of middle control computer and the acquisition controlling subsystem that is connected with middle control computer data communication; One cover acquisition controlling subsystem then mainly includes equipment such as baking heater, ventilation conditioning equipment, Temperature Humidity Sensor, PID controller and Electronic Nose.
Baking heater places in the baking box, is electrically connected with the PID controller, is used for according to the control operation of PID controller the food in the baking box being toasted heating.The baking heater spare that baking heater can select for use existing conventional oven to be adopted is commercial matured product, and the baking heater product specification of specifically selecting for use is then according to being decided by the concrete object of cooking food.
The ventilation conditioning equipment is electrically connected with the PID controller, is used for regulating the switching of baking box vent passages and the size of ventilation according to the control operation of PID controller.Use concrete; As a kind of embodiment; The ventilation conditioning equipment can be mainly be made up of air intake machine that is arranged at the baking box air inlet and the automatically controlled air door that is arranged at baking box air-out passage; This air intake machine and automatically controlled air door are electrically connected with the PID controller respectively, regulate the size of air inflow and the switching of air-out passage respectively according to the control operation of PID controller, thereby realize the regulatory function to the baking box vent passages opens and closes and ventilation is big or small; As another kind of embodiment; The ventilation conditioning equipment can be mainly be made up of automatically controlled air door that is arranged at the baking box air intake passage and the air exhauster that is arranged at the baking box air outlet; This automatically controlled air door and air exhauster are electrically connected with the PID controller respectively; Regulate the switching of inlet channel and the size of exhausting amount respectively according to the control operation of PID controller, thereby realize regulatory function the baking box vent passages opens and closes and ventilation is big or small.
Temperature Humidity Sensor places in the baking box, is connected with the PID controller data, is used to gather actual temperature and the actual humidity in the baking box and send the PID controller to.Temperature Humidity Sensor is existing matured product; Can be through commercial acquisition; For example can adopt Siemens analog expansion module EM231CN, wherein including Temperature Humidity Sensor is wet and dry bulb PT100 sensor, to realize the collection to actual temperature in the baking box and actual humidity; The temperature measurement accuracy of wet and dry bulb PT100 sensor is about ± 0.5%FS ± 1D; The moisture measurement precision is about ± 2%FS ± 1D, and temperature-measuring range is between 0 ~ 120 ℃, and the hygrometric scope is 5%-100%RH; Working power is alternating current 220V ± 10%, 50Hz; Per hour power consumption is less than 5W, and possesses eight sections humiture programing functions and RS485 communication function, function admirable.
The PID controller except be electrically connected with baking heater and ventilation conditioning equipment respectively, with the Temperature Humidity Sensor data are connected; Also carrying out data communication with middle control computer is connected; Be used for receiving the baking temperature setting value and baking humidity set point that control computer sends; And obtain actual temperature and the actual humidity in the baking box that Temperature Humidity Sensor gathers; According to actual temperature in the baking box and actual humidity baking heater and ventilation conditioning equipment are carried out control operation, make the temperature and humidity in the baking box reach baking temperature setting value and baking humidity set point respectively.The core of PID controller is pid control algorithm (a PID control algolithm); Realize that through pid control algorithm the negative feedback closed loop control function can suppress the caused disturbance of various factors in system's closed loop; Make feedback follow set point change; Be that the PID controller is according to the difference of setting value (for example baking temperature setting value in this programme and baking humidity set point) with the actual value (actual temperature and actual humidity in the baking box that for example baking heater and the work of ventilation conditioning equipment form in this programme) of controlled device; Calculate the control output quantity of PID controller according to the PID control algolithm; And then Be Controlled object (for example baking heater and ventilation conditioning equipment in this programme) carried out control operation, make the actual value of controlled device reach setting value.The PID controller also is a matured product of the prior art; For example can select Siemens S7-200 series CPU 224XP CN AC/DC/Relay PID controller able to programme for use; The PID controller of Siemens S7-200 series can be through pid control algorithm be set parameters such as sampling time, gain, integral time, derivative time control baking heater and ventilation conditioning equipment; The RS485 communication function also is provided simultaneously; Can S7-200 Series P ID controller be carried out data communication with middle control computer and be connected, be provided with and monitor through the correlation parameter of the software interface on the control computer in operating in then S7-200 Series P ID controller.
Said Electronic Nose is carried out data communication with middle control computer and is connected, and is used for gathering the actual gas composition in the baking box and sending control computer to.Electronic Nose is to utilize the response collection of illustrative plates of gas sensor array to discern the electronic installation or the system of smell, mainly is made up of gas sensor array, Signal Pretreatment unit and pattern recognition unit three parts.The principle of work of Electronic Nose is: in face of certain smell is presented on the gas sensor that a kind of active material processes; Gas sensor can convert the chemistry input of this gas to electric signal output; Adopt a plurality of gas sensors to constitute gas sensor array, these a plurality of gas sensors have just constituted the electric signal output array of gas sensor array to this smell to a kind of response of smell; For realizing qualitative or quantitative test to smell; Must the suitable pre-service of electric signal output carrying out of gas sensor (be eliminated noise, feature extraction, signal amplification; Normalization etc.) after, adopt suitable pattern recognition analysis method that it is discerned processing by pattern recognition unit; In theory; Every kind of smell is for gas sensor array and Yan Douhui has its characteristic of correspondence array of electrical signals value; The gas neuron of different odor characteristic of correspondence array of electrical signals value as Electronic Nose is stored in the pattern recognition unit; Compare coupling identification to the electric signal output array value of gas sensor array and gas neuron when carrying out gas detection; Just can distinguish with environment-identification in different gas componants, and gas sensor array capable of using is measured identification to the cross-sensitivity of multiple gases.Electronic Nose also belongs to prior art; Commercial matured product is promptly arranged; Also can realize through independent research; In concrete the application gas sensor array select for use and pattern recognition unit in the neuronic setting of gas, that need toast then that supervisory system is directed against according to the present invention automatically is decided by cooking food object and each stage distributes in bake process characteristic gas composition thereof; As for composition situation how specifically to study the gas componant that the different phase of food in bake process distribute; And any or which kind gas componant conduct of selecting for use the different phase of food in bake process to distribute is used to distinguish the characteristic gas composition that identification food is in the corresponding baking stage; It or not key content of the present invention; The present invention only need utilize the existing result of study of the characteristic gas composition situation of being distributed by the different phase of cooking food in bake process; A plurality of gas sensors of selecting the various characteristic gas compositions that distributed in each baking stage by cooking food to be had good sensitive response characteristic respectively according to this result of study constitute gas sensor array; And in pattern recognition unit, set the gas neuron that comprises by the cooking food various characteristic gas compositions correspondences that each stage distributes in bake process, all can be got final product by the cooking food various characteristic gas compositions that each stage distributes in bake process with assurance by Electronic Nose collection and identification.Need to prove; In the present invention; By cooking food each baking stage the characteristic gas composition that distributes of correspondence; Specifically be meant: among the gas componant of being distributed in any baking stage by cooking food, can be used in to distinguish and judge one or more gas componants that are in this baking stage by cooking food, then as the characteristic gas composition that is distributed in this baking stage by cooking food; Obtain thus by cooking food each baking stage the characteristic gas composition that distributes of correspondence.
In control computer store by the roasting food monitor message table of cooking food, record the characteristic gas composition that distributed in each baking stage institute correspondence by cooking food in the said roasting food monitor message table and by cooking food in corresponding baking temperature setting value of each baking stage with toast humidity set point; Middle control computer is used to obtain the interior actual gas composition of baking box that Electronic Nose is gathered; With the actual gas composition in the baking box with write down in the roasting food monitor message table of cooking food by cooking food each baking stage the corresponding characteristic gas composition that distributes compare; Characteristic gas composition according to the actual gas in the baking box becomes branch to comprise was confirmed by the residing baking of the cooking food stage; And then definite by the roasting food monitor message table of cooking food, and will be sent to the PID controller by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point through inquiry.Middle control computer can adopt the personal computer of prior art to realize, generally includes the component part of personal computers such as main frame, data collecting card, display, is mainly used in and realizes distal center integrated monitoring operating function, realizes man-machine conversation; Certainly; Realize that above-mentioned functions need design corresponding baking monitoring software in middle control computer; This baking monitoring software can utilize software design tool such as delphi to design research and development on commonly used computer operating system platform such as windows XP operating system, windows7 operating system, windows server 2003 operating systems; The baking monitoring software that design is accomplished correspondingly is able to operation on the computer operating system platform of using always in windows XP operating system, windows7 operating system, windows server 2003 operating systems etc.; Realize the man-machine conversation function, in order to carry out above-mentioned baking policer operation.In the present invention program, all adopt the RS485 communication interface if carry out the equipment that data communication is connected with middle control computer in the acquisition controlling subsystem, then in control computer also adopt the data collecting card of RS485 communication interface to get final product; And usually only adopted the data collecting card of RS232 communication interface in the design of the serial ports of personal computer; In this case; All adopt the RS485 communication interface if carry out the equipment that data communication is connected with middle control computer in the acquisition controlling subsystem, then can through RS485 RS 232 interface convertor realize in the acquisition controlling subsystem with middle control computer between data communication be connected.
There is the technological difference of essence in time-based baking pattern control in automatic baking supervisory system of the present invention and the prior art.In the time-based baking pattern control of prior art; Every kind of baking pattern is provided with fixing stoving time; Progress is controlled the temperature and humidity of baking in time; This baking control mode is difficult to adapt to flexibly different baking applications environment, can not adjust the control to baking temperature and humidity according to the actual baking progress self-adaptation of food; For example; Be baked to the interstage but food for some from being difficult in appearance obviously distinguish; It does not have obvious difference when giving birth to state from seeing in appearance with complete; If adopt time-based baking pattern that it is carried out the whole process baking, then will cause roasting food excessive, influence the accuracy and the baking quality of baking process.Automatic baking supervisory system of the present invention has adopted the method for supervising that obviously is different from prior art.Because the principal ingredient of food is a carbohydrates; Its carbohydrates in bake process receives thermal distortion and is accompanied by water evaporates; Evaporate in the moisture that and just can carry distinctive carbohydrate component in the food; And the carbohydrates that carries in its transpiring moisture of the different phase in the roasting food process also changes with the food situation of change of being heated; Therefore the composition situation of the different phase of food in the bake process gas componant of distributing is different, so, among the gas componant of being distributed in any baking stage of food; Always can find one or more gas componants to judge that with difference food is in this baking stage and be not to be in other baking stage, judge that food is in the characteristic gas composition in this baking stage thereby this a kind of or multiple gases composition then can be used as in order to distinguish; Automatic baking supervisory system of the present invention has been utilized this characteristic of food just, has adopted a kind of automatic baking method for supervising based on gas componant collection and judgement, and the treatment scheme of this method for supervising is as shown in Figure 2, specifically comprises the steps:
1) storage and setting by the roasting food monitor message table of cooking food in middle control computer in advance records the characteristic gas composition that distributed in each baking stage institute's correspondence by cooking food and by corresponding baking temperature setting value of each baking stage of cooking food with toast humidity set point in the said roasting food monitor message table;
2) will be put into baking box by cooking food, start the roasting food process;
3) Electronic Nose is gathered the actual gas composition in the baking box in real time and is sent middle control computer to; Temperature Humidity Sensor is gathered actual temperature and the actual humidity in the baking box in real time and is sent the PID controller to;
4) control computer obtains the interior real gas composition of baking box that Electronic Nose is gathered in; With the real gas composition in the baking box with write down in the roasting food monitor message table of cooking food by cooking food each baking stage the corresponding characteristic gas composition that distributes compare; Characteristic gas composition based on the real gas in the baking box becomes branch to comprise was confirmed by the residing baking of the cooking food stage; And then definite by the roasting food monitor message table of cooking food, and will be sent to the PID controller by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point through inquiry;
5) baking temperature setting value that control computer sent during the PID controller received and baking humidity set point; And obtain actual temperature and the actual humidity in the baking box that Temperature Humidity Sensor gathers; Based on actual temperature in the baking box and actual humidity baking heater and ventilation conditioning equipment are carried out control operation; Allow baking heater the food in the baking box toasted heating based on the control operation of PID controller; Allow the ventilation conditioning equipment regulate the switching of baking box vent passages and the size of ventilation, thereby make the temperature and humidity in the baking box reach baking temperature setting value and baking humidity set point respectively based on the control operation of PID controller;
6) circulation execution in step 4 ~ 5 finishes until the roasting food process.
Can see through above-mentioned automatic baking monitor procedure; Automatic baking method for supervising of the present invention is through cycle criterion and control; Can judge by the residing baking of the cooking food stage according to the characteristic gas composition that food distributed in the baking box in real time; And then the temperature and humidity of controlling in real time in the baking box reaches respectively by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point; Make that the baking supervisory system can be adjusted the control to baking temperature and humidity according to the concrete baking stage self-adaptation of food automatically; To reach the baking temperature setting value and baking humidity set point that the baking process expection requires accurately, therefore no matter be in which baking stage by cooking food, toasting supervisory system automatically can both require the roasting food process is controlled accurately according to the baking process that writes down in the roasting food monitor message table; Even if food begins to start bake process from toasting the interstage, the excessive fault policer operation of roasting food can not appear yet.This shows that automatic baking supervisory system of the present invention and method for supervising have promoted the self-adaptation adjustment performance to the roasting food process, can better guarantee the accuracy and the baking quality of baking process.For practical implementation; Can store the roasting food monitor message table of multiple food in the middle control computer in advance; When toasting monitoring, got final product by the roasting food monitor message table of cooking food according to a conduct therefrom being set corresponding kind by the concrete kind of cooking food; Certainly, if monitored baking box is exclusively used in a kind of food of baking, only need storage in the then middle control computer and set to get final product by a roasting food monitor message table of cooking food correspondence.
Automatically toast the improvement project of supervisory system as the present invention; On the basis of said system framework; Can also set up video monitoring function, promptly in the acquisition controlling subsystem, set up monopod video camera, monopod video camera is placed in the baking box; Carry out data communication with middle control computer and be connected, be used for gathering the video image in the baking box and sending middle control computer to according to the control operation of control computer; In control computer except realizing above-mentioned monitoring function, also be used for monopod video camera is carried out control operation, obtain the video image in the baking box of monopod video camera collection and carry out display process; It is as shown in Figure 3 that this improvement project is toasted the system architecture figure of supervisory system automatically.When concrete the application; Because monopod video camera places in the baking box; Its operating ambient temperature is higher, therefore preferably monopod video camera is added the vacuum heat-insulation protective cover, guarantees its operate as normal under hot environment; Monopod video camera, vacuum heat-insulation protective cover are matured product of the prior art, can be through commercial acquisition.Monopod video camera mainly is made up of The Cloud Terrace and video camera two parts of being erected on the The Cloud Terrace; The Cloud Terrace need carry out data communication with the data collecting card of middle control computer through coding controller usually and be connected; To the coding controller sending controling instruction, coding controller carries out corresponding camera angle adjustment operation with steering order decoding back control The Cloud Terrace by middle control computer; Need set up video frequency collection card in the control computer simultaneously; Video camera then can directly carry out data communication with the video frequency collection card of middle control computer and be connected; Send the video image in the baking box of gathering to middle control computer; In control computer carry out display process after obtaining the video image in the baking box of its collection, the display through middle control computer shows, and also can carry out stored record to video image.This improvement project is through combining the video camera technology; Make operating personnel pass through control computer in the operation; Just can observe and record color and luster, the metamorphosis of food in the baking box in bake process; Be convenient to the overall process that the technician better controls roasting food technology, help further to promote baking quality.
Automatically toast supervisory system improvement project on the other hand as the present invention; Acquisition controlling subsystem in the system can have a plurality of; Each acquisition controlling subsystem is connected with middle control computer data communication by aforesaid mode respectively; Each acquisition controlling subsystem is used for corresponding baking box, thereby realizes the roasting food process in a plurality of baking boxs is monitored; It is as shown in Figure 4 that this improvement project is toasted the system architecture figure of supervisory system automatically.Thus; Make automatic baking supervisory system of the present invention can be able to the integrated application of scale; Just can realize joint-monitoring by operating personnel through a middle control computer to the roasting food process in a plurality of baking boxs; Further reduce the labour intensity of baking process control on the one hand, also helped to reduce the system scale construction cost on the other hand.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. one kind is toasted supervisory system automatically, it is characterized in that, is used for the roasting food process in the baking box is monitored; This system mainly by middle control computer and with said in the acquisition controlling subsystem that is connected of control computer data communication constitute; Said acquisition controlling subsystem comprises baking heater, ventilation conditioning equipment, Temperature Humidity Sensor, PID controller and Electronic Nose;
Said baking heater places in the baking box, is electrically connected with the PID controller, is used for according to the control operation of PID controller the food in the baking box being toasted heating;
Said ventilation conditioning equipment is electrically connected with the PID controller, is used for regulating the switching of baking box vent passages and the size of ventilation according to the control operation of PID controller;
Said Temperature Humidity Sensor places in the baking box, is connected with the PID controller data, is used to gather actual temperature and the actual humidity in the baking box and send the PID controller to;
Said PID controller also carries out data communication with middle control computer and is connected; Be used for receiving baking temperature setting value and the baking humidity set point that control computer sends; And obtain actual temperature and the actual humidity in the baking box that Temperature Humidity Sensor gathers; According to actual temperature in the baking box and actual humidity baking heater and ventilation conditioning equipment are carried out control operation, make the temperature and humidity in the baking box reach baking temperature setting value and baking humidity set point respectively;
Said Electronic Nose is carried out data communication with middle control computer and is connected, and is used for gathering the actual gas composition in the baking box and sending control computer to;
Control computer stores by the roasting food monitor message table of cooking food in said, record the characteristic gas composition that distributed in each baking stage institute correspondence by cooking food in the said roasting food monitor message table and by cooking food in corresponding baking temperature setting value of each baking stage with toast humidity set point; Middle control computer is used to obtain the interior actual gas composition of baking box that Electronic Nose is gathered; With the actual gas composition in the baking box with write down in the roasting food monitor message table of cooking food by cooking food each baking stage the corresponding characteristic gas composition that distributes compare; Characteristic gas composition according to the actual gas in the baking box becomes branch to comprise was confirmed by the residing baking of the cooking food stage; And then definite by the roasting food monitor message table of cooking food, and will be sent to the PID controller by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point through inquiry.
2. automatic baking supervisory system according to claim 1 is characterized in that said acquisition controlling subsystem also comprises monopod video camera;
Said monopod video camera places in the baking box, carries out data communication with middle control computer and is connected, and is used for gathering the video image in the baking box and sending middle control computer to according to the control operation of control computer;
Control computer also is used for monopod video camera is carried out control operation in said, obtains the video image in the baking box of monopod video camera collection and carries out display process.
3. automatic baking supervisory system according to claim 1; It is characterized in that; Said acquisition controlling subsystem has a plurality of; Each acquisition controlling subsystem is connected with middle control computer data communication respectively, and each acquisition controlling subsystem is used for corresponding baking box, thereby realizes the roasting food process in a plurality of baking boxs is monitored.
4. one kind is toasted method for supervising automatically, it is characterized in that, adopts automatic baking supervisory system as claimed in claim 1 to monitor; This method comprises the steps:
1) storage and setting by the roasting food monitor message table of cooking food in middle control computer in advance records the characteristic gas composition that distributed in each baking stage institute's correspondence by cooking food and by corresponding baking temperature setting value of each baking stage of cooking food with toast humidity set point in the said roasting food monitor message table;
2) will be put into baking box by cooking food, start the roasting food process;
3) Electronic Nose is gathered the actual gas composition in the baking box in real time and is sent middle control computer to; Temperature Humidity Sensor is gathered actual temperature and the actual humidity in the baking box in real time and is sent the PID controller to;
4) control computer obtains the interior real gas composition of baking box that Electronic Nose is gathered in; With the real gas composition in the baking box with write down in the roasting food monitor message table of cooking food by cooking food each baking stage the corresponding characteristic gas composition that distributes compare; Characteristic gas composition based on the real gas in the baking box becomes branch to comprise was confirmed by the residing baking of the cooking food stage; And then definite by the roasting food monitor message table of cooking food, and will be sent to the PID controller by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point by the residing baking of cooking food stage corresponding baking temperature setting value and baking humidity set point through inquiry;
5) baking temperature setting value that control computer sent during the PID controller received and baking humidity set point; And obtain actual temperature and the actual humidity in the baking box that Temperature Humidity Sensor gathers; Based on actual temperature in the baking box and actual humidity baking heater and ventilation conditioning equipment are carried out control operation; Allow baking heater the food in the baking box toasted heating based on the control operation of PID controller; Allow the ventilation conditioning equipment regulate the switching of baking box vent passages and the size of ventilation, thereby make the temperature and humidity in the baking box reach baking temperature setting value and baking humidity set point respectively based on the control operation of PID controller;
6) circulation execution in step 4 ~ 5 finishes until the roasting food process.
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| CN201210221024.0A CN102722201B (en) | 2012-06-29 | 2012-06-29 | Automatic baking monitoring system and method |
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| CN201210221024.0A CN102722201B (en) | 2012-06-29 | 2012-06-29 | Automatic baking monitoring system and method |
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| CN102722201B CN102722201B (en) | 2014-03-26 |
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