JPH10244238A - Garbage treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dry efficiently garbage without overdrying or insufficient drying. SOLUTION: The temperature of a material to be treated like garbage stored in a treatment container is sensed by a temperature sensor 1, and electric power determined by a fuzzy inference instrument 5 based on the output of the temperature sensor 1 is supplied to a heating means 3 by a control means 2 to control the material to be treated to be kept within the given temperature range.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for drying garbage, kitchen garbage and the like, particularly by heating the garbage and kitchen garbage with a heater or the like.
The present invention relates to a garbage processing apparatus for processing.

[0002]

2. Description of the Related Art A conventional general garbage disposal apparatus will be described with reference to FIGS.

[0003] In FIG. 10, reference numeral 101 denotes a processing container for processing an object to be processed such as garbage, 102 denotes a heating means such as a sheath heater provided below the processing container 101, and 103.
Is a processing container 1 for detecting the temperature of the processing container 101.
01 is a temperature sensor disposed on the bottom rear surface of the heating means 10.
2 is controlled to be heated to a predetermined temperature by control means (not shown) which operates based on the output of the temperature sensor 103. 1
Reference numeral 04 denotes a stirring blade that stirs the object to be processed in the processing container 101, and is driven by the drive motor 105 so that the stirring blade 10
According to 4, the object to be treated is stirred and pulverized to promote drying.
Reference numeral 106 denotes a suction fan, which is rotated by a motor (not shown) to suck a gas containing water vapor generated inside the processing container 101 and discharge it to the outside, and formed toward the processing container 101 from outside the main body. Outside air is introduced into the processing container 101 through an air passage (not shown). 107
Denotes an exhaust unit for discharging gas, and 108 denotes a catalyst disposed in an exhaust path between the processing container 101 and the exhaust unit 107, and deodorizes the gas.

The operation of the above configuration is as described below. A predetermined drying processing time is set, and the heating means 102
Preheating process and temperature sensor 10 for raising temperature by heating
3 controls the heating temperature of the heating means 102 to a predetermined temperature by the control means operating based on the output of the stirring blade 1.
In step 04, the object to be processed is stirred and pulverized, and a drying process of heating and drying the object by discharging gas by the suction fan 106 and a cooling step of cooling the object to be processed by the suction fan 106 are performed for a predetermined time. A series of drying processes is performed by sequentially shifting the process every time. The gas containing water vapor generated in the processing container 101 during the processing flows from the air flow path to the suction fan 106.
From the processing vessel 101 together with the air introduced by the catalyst 1
08, the odorous component is removed while passing through the gas, and the gas is discharged from the exhaust unit 107.

In this case, as shown in FIG. 11, the output voltage of a temperature sensor 103 for detecting the temperature of the processing vessel 101 (see FIG. 11A) turns on or off the heating means 102 via a control means. De-energization (OFF) is performed (see FIG. 11B), and control is performed so that the processing container 101 has a predetermined temperature. At this time, by observing the change between the time for energizing the heating means 102 and the time for non-energization, the drying rate is automatically estimated regardless of the amount of the object to be processed, and the processing time is automatically set. Some suggestions have been made.

[0006]

In the conventional garbage processing apparatus, the drying processing time was constant. Therefore, when the amount of garbage was small, the garbage was over-dried and the garbage was burnt.
On the other hand, when the amount of garbage is large, there is an undried portion and insufficient drying occurs, and the dry state of the garbage varies greatly depending on the amount of garbage put into the processing container 101. There was a point.

In order to solve the above problems, there is a proposal for automatically determining the end of drying. However, in order to automatically determine the end of drying, a plurality of sensors are required. Alternatively, if the configuration is simplified and made economical without the need for a plurality of sensors, the accuracy of determining the end of drying varies, and the determination takes a relatively long time. was there.

[0008]

According to the present invention, in order to solve the above-mentioned problems, in the drying process, the power supplied to the heating means is determined from the result of fuzzy inference on the output of the temperature sensor. And By maintaining the inside of the processing container at a predetermined temperature by the power determined in this manner, the temperature change can be stabilized with a small temperature change, and the processing target can be efficiently dried, and the processing time can be reduced. In addition, it is possible to perform an appropriate drying process without insufficient drying or scorching regardless of the operating conditions such as the quantity and quality of the object to be processed and the temperature around the apparatus and the power supply voltage.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a heating means for heating and drying an object to be processed which is mainly made of kitchen garbage and contained in a processing container, a temperature sensor for detecting the temperature of the object to be processed, and this temperature sensor. Control means for controlling the heating means in accordance with the output of the control means, and a fuzzy inference device provided in the control means, the fuzzy inference device supplies power to the heating means in response to the output of the temperature sensor. , Which is determined by fuzzy inference and maintained in a predetermined temperature range, and heat-drys the object to be processed. With such a configuration, the temperature inside the processing container can be stabilized and the drying process can be performed efficiently.

Further, the control means has a timekeeping means, and the power supplied to the heating means is determined by fuzzy inference in accordance with the output of the temperature sensor at predetermined time intervals and held in a predetermined temperature range. Is performed. With such a configuration, the power to be supplied is determined every predetermined time, so that the input power does not frequently change, the power can be supplied relatively and stably, and the control means Since the fuzzy inference only needs to be processed within a predetermined time, there is no need to significantly increase the speed.

Further, the control means has an averaging means, and the power supplied to the heating means is determined by fuzzy inference according to the average value of the output of the temperature sensor within a predetermined time. With this configuration, even if there is external noise or other instantaneous abnormality, fuzzy inference is performed with the output averaged by the averaging means. The object to be processed can be subjected to a heat drying treatment so as to maintain the temperature.

[0012] Further, the control means uses fuzzy inference.
It has a function of determining a point in time when the power control range has decreased by a predetermined value compared to the initial power control range of the heating means as the end point of the drying process. And by constituting in such a form, since the end of the drying process is grasped by the decrease in the supply power due to the decrease in the moisture contained in the object to be treated, it is automatically performed when the predetermined drying rate is reached. Can be terminated.

[0013] Further, the control means is provided by fuzzy inference.
It has a plurality of predetermined values for controlling the heating means so that the output of the temperature sensor maintains a predetermined value according to the output of the temperature sensor, and controls the heating means while sequentially changing the predetermined value of the output of the temperature sensor. It has a function to perform. And by comprising in such a form, since the output target of a temperature sensor changes by the change of the electric power supplied to a heating means, a drying rate can be raised, without raising the temperature of a processing container more than needed. .

Further, the control means uses fuzzy inference,
Control the heating means so that the output of the temperature sensor keeps a predetermined value according to the output of the temperature sensor, and when this control range is lower than the predetermined range, it is determined that there is no object to be processed inside the processing container, It has a function of stopping power supply to the heating means. And by configuring in such a form, the presence or absence of the object to be processed is determined by the electric power supplied to the heating means. Durability can be increased.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

(Embodiment 1) A kitchen waste processing apparatus according to Embodiment 1 of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a temperature sensor which detects the temperature of an object to be processed in a processing container and outputs an output corresponding to the detected temperature as an electric signal. 2 is a temperature sensor 1
Control means using the output from the control unit as an input signal,
The load (not shown) of the suction fan 4 and other displays and stirring means is controlled. Reference numeral 5 denotes a fuzzy inference unit disposed inside the control means 2, which determines the power to be supplied based on the output of the temperature sensor 1 and controls the heating means 3.

The antecedent part of the fuzzy inference as shown in FIG. 2 is stored in the fuzzy inference unit 5 disposed inside the control means 2. In this embodiment, the set temperature of the heat treatment is 150 ° C. , Three membership functions, and three heating means
Is assumed to be 500 W when 100% of the power is supplied, and the consequents of the fuzzy inference are “500 W if the temperature is low” and “30 W if the temperature is just right”.
0W "and" 100W if the temperature is high ".

The operation of the above-configured kitchen waste disposal apparatus will be described below. Under the conditions described above, for example, if the output of the temperature sensor 1 is a value indicating 140 ° C., the grade relating to the membership function of “low” at 140 ° C. is 0.2 from FIG. The grade for the membership function is 0.8. And when the power is “low”, 5
Since the case of 00W and “just right” is 300W, the power becomes 340W by the equation (1) of the center of gravity calculation,
68% of electric power is supplied to the heating means 3 according to the equation (2).

500 W × 0.2 + 300 W × 0.8 = 340 W (1) 340 W / 500 W = 68% (2) Heating sequentially while performing the above calculation. By determining and controlling the power to be supplied to the means 3, the temperature of the object to be processed in the processing vessel is eventually stabilized as shown in FIG. It is stabilized as shown in FIG.

At this time, a method of supplying 68% of electric power to the heating means 3 is to control by thinning out a half-wave unit of the waveform of the commercial power supply every certain unit time or to control 68% of the waveform of the commercial power supply.
It is possible to use any of the time-division-type power control in which the power is cut and controlled at the phase where the power is controlled, and the control using a power load other than the heating means 3.

(Embodiment 2) A kitchen waste disposal apparatus according to Embodiment 2 of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 4, reference numeral 6 denotes a time measuring means provided inside the control means 2 together with the fuzzy inference device 5 for outputting the timing of fuzzy inference. The fuzzy inference unit 5 performs fuzzy inference based on the output of the temperature sensor 1 for each predetermined unit time from the clock unit 6 and determines the power to be supplied to the heating unit 3.

The fuzzy inference unit 5 performs fuzzy inference from the output of the temperature sensor 1 at the timing of the timer unit 6 for setting a predetermined unit time, and determines the power to be supplied to the heating unit 3. The process of fuzzy inference is the same as in the first embodiment.

By controlling as described above, FIG.
As shown in FIG. 5A, the temperature of the object to be processed in the processing container can be controlled to a substantially constant temperature.
As shown in (2), the electric power supplied to the heating means 3 can be stabilized.

In this embodiment, since the value of the temperature sensor 1 at the time of temperature measurement influences until the next measurement, it is preferable to use a filter or the like so that electric noise does not influence the measured value.

(Embodiment 3) A kitchen waste disposal apparatus according to Embodiment 3 of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 6, reference numeral 7 denotes an averaging means provided inside the control means 2 for averaging the output of the temperature sensor 1 in each cycle determined by the time keeping means 6. Fuzzy inference is performed based on the output of the averaging means 7, the power supplied to the heating means 3 is determined by the fuzzy inference device 5, and the time measuring means 6 outputs the power to the averaging means 7 per unit time.

The timing sensor 6 sets a predetermined unit time, and the output of the temperature sensor 1 is averaged by the averaging means 7.
Are averaged by For example, when the unit time is set to 5 seconds, the temperature sensor 1 until the output from the timer 6 is output.
Is averaged by the averaging means 7, even if the output of the temperature sensor 1 during the period is regarded as noise, for example, for about 0.1 second, the averaging means 7 performs the averaging process. Has almost no effect on the output. The fuzzy inference unit 5 performs fuzzy inference based on the output of the averaging unit 7 and determines the power to be supplied to the heating unit 3. The process of fuzzy inference is the same as in the first embodiment.

As described above, the output of the temperature sensor 1
Even if an unusual instantaneous fluctuation value due to electrical noise or other causes occurs, it is averaged, and it is possible to control the temperature of the object in the processing vessel without being affected by this fluctuation value. it can.

(Embodiment 4) Regarding Embodiment 4 of the present invention,
This will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The configuration of the garbage disposal apparatus in this embodiment is the same as the configuration described with reference to FIG. 1, the method of determining the power supplied to the heating means 3 by fuzzy inference is the same, and the control means 2 controls the drying processing. It has a function to determine the end point.

In this case, the control means 2 operates as described below. As shown in FIG. 7, after the drying process is started, the power supplied to the heating unit 3 is controlled by fuzzy inference in the fuzzy inference unit 5 of the control unit 2, and from a certain point in time, for example, from the point in time t1, The temperature is stabilized by supplying a certain range of power (FIG. 7A).
After that, the output of the temperature sensor 1 is stabilized. The electric power P1 to be supplied to the heating means 3 during the stable predetermined time TU is stored.

As the drying of the object proceeds, the water content decreases and the heat capacity of the object decreases, so that less power is required to be supplied to the heating means 3 to maintain the same temperature. The power supplied from the time t2 decreases, and the time t3 at which the power P2 decreases by a predetermined value ΔP is determined as the end time (see FIG. 7B).

As the fuzzy inference in this embodiment, the method described in the second or third embodiment can be used.

(Embodiment 5) Regarding Embodiment 5 of the present invention,
This will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The configuration of the garbage disposal apparatus in this embodiment is the same as the configuration described with reference to FIG. 1, and the method of determining the power to be supplied to the heating means 3 is the same by fuzzy inference for each predetermined value. In addition, the control means 2 has a function of changing a predetermined value which is a target of the output of the temperature sensor 1.

The operation in this case will be described. After detecting the end point of the drying process as described in the fourth embodiment, the control unit 2 operates as described below.

Until the end of the time t3, the output voltage of the temperature sensor 1 is controlled to be V1 as shown in FIG. Then, as the drying proceeds and the heat capacity of the object decreases, the electric power input to the heating means 3 for keeping the output of the temperature sensor 1 constant decreases, and FIG.
As shown in (b), assuming that the power decreases by ΔP at time t3, the output target of the temperature sensor 1 is changed to V2 after time t3. As described above, after the drying process has progressed, it is possible to control so as to lower the set temperature, so that the power input to the heating means 3 is stabilized at a low value.

In this embodiment, the predetermined value is changed so that the output of the temperature sensor 1 becomes constant when the input power decreases by ΔP. However, another method, for example, a predetermined output target is set when a predetermined time has elapsed. The value may be changed.

As the fuzzy inference in this embodiment, the method described in the second or third embodiment can be used.

(Embodiment 6) With respect to Embodiment 6 of the present invention,
This will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The configuration of the kitchen waste processing apparatus in this embodiment is the same as the configuration described with reference to FIG. 1, and the method of determining the power to be supplied to the heating means 3 by fuzzy inference is also the same. To stop heating when the processing container is empty.

The operation in this case will be described. As shown in FIG. 9, when the time point t1 has elapsed after the start of the heat treatment, the control means 2 sets a substantially constant range of power P1.
Is supplied (see FIG. 9B), and the temperature inside the processing container is stabilized, and thereafter, the output from the temperature sensor 1 is also stabilized (see FIG. 9A).

If the electric power P1 supplied to the heating means 3 is smaller than the predetermined value P3 during the stable predetermined time TU, if there is no object in the heated processing container, Is determined to be less than the predetermined amount, and the supply of power to the heating means 3 is stopped to stop the heating and to prevent overheating of the processing container.

As the fuzzy inference in this embodiment, the method described in the second or third embodiment can be used.

[0047]

The present invention is embodied in the form described above and has the following effects.

Since the power to be supplied to the heater is determined by fuzzy inference from the output of the temperature sensor for detecting the temperature of the object to be processed, the heating control can be stably performed at a predetermined temperature, and insufficient drying can be performed efficiently in a short time. It is possible to perform an appropriate drying process without burning or scorching.

Further, since the power to be supplied to the heater is determined at predetermined intervals from the output of the temperature sensor by fuzzy inference, the supplied power does not change frequently, and flickering of the electric lamp on the same wiring can be reduced. Can be
Further, since the fuzzy inference only needs to be performed within a predetermined time, it is not necessary to remarkably increase the speed of the control means, and it is possible to efficiently perform an appropriate drying process in a short time without insufficient drying or scorching.

Further, since the power to be supplied to the heating means is determined by performing fuzzy inference with a value obtained by averaging the output of the temperature sensor every predetermined time, even if external noise or other instantaneous abnormalities occur, it is stable. To control power,
It is possible to perform an appropriate drying process efficiently without shortage of drying or scorching in a short time.

Further, since the end point of the drying process is automatically determined based on the change in the power control value determined by the fuzzy inference, it is possible to economically configure the apparatus, regardless of the quantity or quality of the object to be processed. In addition, it is possible to efficiently perform an appropriate drying process without variations among individual products, insufficient drying, and scorching.

Further, the power to be supplied to the heating means is determined by fuzzy inference according to the output of the temperature sensor, and after drying at a predetermined temperature, the drying temperature is lowered according to the amount of garbage and the like. Since the drying process is continued, it is possible to efficiently perform an appropriate drying process without insufficient drying or the like.

Further, the power to be supplied to the heating means is determined by fuzzy inference according to the output of the temperature sensor. When the power is lower than a predetermined power supply value, the power supply is terminated. Can be automatically stopped, abnormal heating of the processing container can be prevented, and the durability of the processing container can be further increased.

[Brief description of the drawings]

FIG. 1 is a block diagram of a kitchen waste disposal apparatus according to a first embodiment of the present invention.

FIG. 2 is a graph showing a membership function of an antecedent part stored in a fuzzy inference device provided in a control means of the kitchen waste processing apparatus.

FIG. 3A is an output characteristic diagram of a temperature sensor in the kitchen waste treatment apparatus. FIG. 3B is a power characteristic diagram of a heating unit in the kitchen waste treatment apparatus.

FIG. 4 is a block diagram of a kitchen waste disposal apparatus according to a second embodiment of the present invention.

FIG. 5A is an output characteristic diagram of a temperature sensor in the kitchen waste treatment apparatus. FIG. 5B is a power characteristic diagram of a heating unit in the kitchen waste treatment apparatus.

FIG. 6 is a block diagram of a kitchen waste disposal apparatus according to a third embodiment of the present invention.

FIG. 7A is an output characteristic diagram of the temperature sensor of the kitchen waste treatment apparatus according to the fourth embodiment of the present invention.

FIG. 8 (a) is an output characteristic diagram of the temperature sensor of the garbage disposal device according to the fifth embodiment of the present invention.

FIG. 9A is an output characteristic diagram of a temperature sensor of the kitchen waste treatment apparatus according to the sixth embodiment of the present invention.

FIG. 10 is a schematic cross-sectional view of a conventional kitchen waste disposal apparatus.

FIG. 11A is an output characteristic diagram of a temperature sensor in the kitchen waste treatment apparatus. FIG. 11B is a power characteristic diagram of a heating unit in the kitchen waste treatment apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Temperature sensor 2 Control means 3 Heating means 5 Fuzzy inference device 6 Clocking means 7 Averaging means

Claims (6)

[Claims] 1. A heating unit for heating and drying an object stored in a processing container, a temperature sensor for detecting a temperature of the object, and a control unit for controlling the heating unit based on an output of the temperature sensor. And a fuzzy inference device provided in the control means, wherein the fuzzy inference device determines electric power to be supplied to the heating means according to an output of the temperature sensor. 2. The garbage disposal apparatus according to claim 1, wherein the control means has a time measuring means, and the power supplied to the heating means is determined at predetermined time intervals according to the output of the temperature sensor by fuzzy inference. 3. The garbage according to claim 1, wherein the control means has an averaging means, and the power supplied to the heating means is determined according to an average value of the output of the temperature sensor within a predetermined time by fuzzy inference. Processing equipment. 4. The controller according to claim 1, wherein the controller has a function of determining, by fuzzy inference, a point in time at which the temperature decreases by a predetermined value as compared with the initial power control range of the heater, as the end point of the drying process.
4. The garbage disposal apparatus according to any one of claims 3 to 3. 5. The garbage disposal apparatus according to claim 1, wherein the control means has a function of changing the output value of the temperature sensor that controls the heating means according to the output of the temperature sensor by fuzzy inference. 6. When the control means controls the heating means according to the output of the temperature sensor by fuzzy inference, the control means determines that there is no object to be processed in the processing vessel and determines that the heating means does not exist. The garbage disposal device according to any one of claims 1 to 5, having a function of stopping power supply to the kitchen.