CN111506128A - Manufacturing method of automatic control panel of disinfection cabinet - Google Patents
Manufacturing method of automatic control panel of disinfection cabinet Download PDFInfo
- Publication number
- CN111506128A CN111506128A CN202010434778.9A CN202010434778A CN111506128A CN 111506128 A CN111506128 A CN 111506128A CN 202010434778 A CN202010434778 A CN 202010434778A CN 111506128 A CN111506128 A CN 111506128A
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- CN
- China
- Prior art keywords
- digital
- disinfection cabinet
- automatic control
- potentiometer
- analog converter
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1917—Control of temperature characterised by the use of electric means using digital means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
Abstract
The invention discloses a method for manufacturing an automatic control panel of a disinfection cabinet, which mainly comprises the following steps: the display device comprises a printed circuit board, a single chip microcomputer, a potentiometer, a digital-to-analog converter, a key control circuit and a display module, wherein the single chip microcomputer, the potentiometer, the digital-to-analog converter, the key control circuit and the display module are welded and installed on the printed circuit board in a matched mode; the key control circuit barrel operation keys are matched with workers to set the single chip microcomputer, and the automatic control information of the disinfection cabinet is set; the digital-to-analog converter converts the electric signal pushed by the potentiometer into a digital code and then pushes the digital code to the singlechip for processing. In the preparation process, the singlechip outputs a control signal to drive the post-stage disinfection heating circuit, and the temperature is controlled by accurate closed-loop control, so that the disinfection cabinet system has high reaction speed, high reaction precision and good portability, and the application field is expanded.
Description
Technical Field
The invention relates to the technical field of automation of disinfection cabinets, in particular to a method for manufacturing an automatic control panel of a disinfection cabinet.
Background
The disinfection cabinet is a tool for drying, sterilizing, preserving heat and dehumidifying articles such as tableware, towels, clothes, hairdressing tools, medical instruments and the like in the modes of ultraviolet rays, far infrared rays, high temperature, ozone and the like, and is generally box-shaped, most of the cabinet body is made of stainless steel, and the panel is made of toughened glass or stainless steel.
The disinfection cabinet is an electrical appliance product which is the pioneer of the invention in China, and is widely applied to places such as hotels, restaurants, schools, troops, dining halls and the like, more and more China families pay attention to the importance of the disinfection cabinet, and the disinfection cabinet will be one of household appliances in the future.
Along with the continuous development of modern science and technology, microcomputer control technology begins to gradually permeate into various fields including industrial, agricultural and family life, the change of temperature has certain influence on the production and life of people, the change rule is mastered and reasonably utilized through the detection and analysis of the environment, so as to improve the life of human beings, the disinfection cabinet is designed for the disinfection of tableware in daily life of people, the microcomputer control technology is adopted to accurately control the temperature and the heating time in the disinfection cabinet, the food sanitation of people is improved to a great extent, and the living standard of people is improved.
The holistic operating device of sterilizer is through the operation of inside automatically controlled board control, but synthesizes the sterilizer control panel overall system functioning speed of current prior art comparatively delay, and the precision of reaction is lower, can't be better with other electrical equipment system cooperation operation, do not have the portability, so need improve and optimize this.
Disclosure of Invention
The invention aims to provide a method for manufacturing an automatic control panel of a disinfection cabinet, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for manufacturing an automatic control panel of a disinfection cabinet mainly comprises the following steps: printed circuit board, singlechip, potentiometre, digital-to-analog converter, button control circuit and display module, including following five steps:
the method comprises the following steps: the printed circuit board is respectively welded and provided with a singlechip, a potentiometer, a digital-to-analog converter, a key control circuit and a display module which are matched with each other;
step two: the key control circuit barrel operation keys are matched with workers to set the single chip microcomputer, and the automatic control information of the disinfection cabinet is set;
step three: the digital-to-analog converter converts the electric signal pushed by the potentiometer into a digital code and then pushes the digital code to the singlechip for processing;
step four: the single chip microcomputer analyzes and processes the control information, and the control information is displayed through the display module, so that a worker can observe and master the control information;
step five: the single chip microcomputer simultaneously pushes the processed information to the digital-to-analog converter, and then the digital-to-analog converter converts the digital code into an electric signal and pushes the electric signal to the potentiometer for regulation and operation, so that the automatic control operation of the disinfection cabinet is realized.
Preferably, the singlechip adopts an 89C52RC chip, and the 89C52RC chip is an 80C51 microcontroller, contains a 16KB on-chip Flash program memory and has functions of system programming and programming in application; a data RAM containing 512 bytes; 5.5-3.3V of working voltage and 0-40 MHz of operating frequency.
Preferably, the potentiometer replaces an analog temperature sensor, the acquisition circuit adopts a classic bridge, the amplification circuit adopts a classic differential amplification circuit, and in the temperature measurement bridge, one of the two potentiometers simulates the temperature sensor such as PT 100; the other is a zero-setting potentiometer which plays a role in setting the reference temperature.
Preferably, the digital-to-analog conversion circuit is composed of AD0804, is an 8-COMS sequential approximation type digital signal converter, has the access time of 135US, the resolution of 8 bits, the conversion time of 100US, the total error of about plus or minus 1L SB, and the input clock signal is limited to 100 KHZ-1450 KHZ.
Preferably, the key control circuit uses three keys H1, H2 and H3, and the keys are respectively stop, run and keep warm.
Preferably, the display module consists of 6 nixie tubes and a 74L S138 decoder, and adopts dynamic scanning, the front 3 bits display real-time temperature, and the rear 3 bits display voltage for debugging.
Compared with the prior art, the invention has the beneficial effects that: the manufacturing method of the automatic control panel of the disinfection cabinet adopts a bridge circuit to convert the temperature change collected by a relevant sensor into a voltage signal, then the voltage signal is amplified into 0-5V voltage by an amplifying circuit consisting of 3 OP07 operational amplifiers and is sent to an ADC0804 digital-to-analog conversion circuit, the voltage signal is converted into an 8-bit digital signal and is sent to an 8051 singlechip system, the 8051 singlechip system processes the collected data and then sends the processed data to a digital tube, the current temperature is dynamically displayed in real time, the temperature control is mainly realized by that a singlechip outputs a control signal to drive a post-stage disinfection heating circuit and the temperature control is precise closed-loop control, the method finishes the operation of a microcomputer control panel of the disinfection cabinet, realizes the fast reaction speed and high reaction precision of the disinfection cabinet system, and has good portability, can be used as other temperature control systems such as an air conditioner and an electric cooker, and simultaneously expands the application field.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a schematic flow chart of the main procedure of the present invention;
FIG. 4 is a schematic diagram of a matrix key circuit according to the present invention;
FIG. 5 is a schematic diagram of a display decoding circuit according to the present invention;
FIG. 6 is a schematic flow chart of the temperature sampling and AD sub-routine of the present invention;
FIG. 7 is a flowchart illustrating a sub-process of the display process according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-2, the present invention provides an embodiment: a method for manufacturing an automatic control panel of a disinfection cabinet mainly comprises the following steps: printed circuit board, singlechip, potentiometre, digital-to-analog converter, button control circuit and display module, including following five steps:
the method comprises the following steps: the printed circuit board is respectively welded and provided with a singlechip, a potentiometer, a digital-to-analog converter, a key control circuit and a display module which are matched with each other;
step two: the key control circuit is matched with a worker to set the single chip microcomputer through operating keys, the key control circuit uses three keys of H1, H2 and H3, the three keys are correspondingly respectively stop, run and heat preservation, and the setting of the self-control information of the disinfection cabinet is completed, the single chip microcomputer adopts an 89C52RC chip, the 89C52RC chip is an 80C51 microcontroller, and the single chip microcomputer contains a 16KB on-chip Flash program memory and has the functions of system programming and programming in application; a data RAM containing 512 bytes; working voltage of 5.5-3.3V, and operating frequency of 0-40 MHz;
step three: the digital-to-analog converter converts an electric signal pushed by the potentiometer into a digital code and then pushes the digital code to the single chip microcomputer for processing, the potentiometer replaces an analog temperature sensor, the acquisition circuit adopts a classic bridge, the amplification circuit adopts a classic differential amplification circuit, and in the temperature measurement bridge, one of the two potentiometers simulates a temperature sensor such as PT 100; the other is a zero-setting potentiometer which plays a role in setting reference temperature, when the temperature changes, the resistance value of the temperature sensor changes, the 1 point and the 2 point generate voltage difference to be output to an amplifying circuit, and the amplifying circuit is a classical differential amplifying circuit consisting of 3 OP07 high-precision operational amplifiers;
fourthly, the singlechip analyzes and processes the data, the control information is displayed through a display module, the display module consists of 6 nixie tubes and a 74L S138 decoder, different nixie tubes are selected through a 38 decoder to display different data, the nixie tubes are driven by 9012, dynamic scanning is adopted, the font codes are 0-9: 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80 and 0x90, dynamic scanning is adopted, the front 3 bits display real-time temperature, the rear 3 bits display voltage for debugging, and workers can observe and master the data;
and fifthly, the single chip simultaneously pushes the processed information to a digital-to-analog converter, a digital-to-analog conversion circuit is formed by AD0804 and is an 8-non-COMS sequential approximation type digital signal converter, the access time is 135US, the resolution is 8 bits, the conversion time needs 100US, the total error is about plus or minus 1L SB, the input clock signal is limited to 100 KHZ-1450 KHZ, and the digital code is converted into an electric signal by the digital-to-analog converter and pushed to a potentiometer for regulation operation, so that the automatic control operation of the disinfection cabinet is realized.
Example 2
Referring to fig. 3-7, embodiments of the present invention are shown: a method for manufacturing an automatic control panel of a disinfection cabinet.
Firstly, system software design
1. Principles and memory cell and tag assignment description
According to the program design, according to a temperature value sampled by a temperature sensor, AD conversion is carried out, then the converted value is amplified, then the converted value is subjected to icosanm conversion, the converted value is registered in a register, and then a display program is called to carry out fact display of the temperature. The program of each function key is read from a port P3, converted into decimal number, sent to a display buffer area, compared and judged according to the keyboard scanning result, when the pressed key is a heating function key, the system controls the heater to start heating, when the temperature reaches 125 ℃, the heater starts heating when the temperature is lower than 50 ℃ when the heat preservation key is pressed, when the temperature is higher than 70 ℃, the heating is stopped, and when the stop key is pressed; all actions stop. The mark is set in the main program, and the program ensures that the AD conversion is completed by a time delay method to realize the unification and synchronization of the temperature and the press key and control the work of the heater in real time so as to achieve the effect required by people.
2. Design of main program
The main program mainly completes keyboard scanning and display, firstly, AD and display initialization are carried out, then, an AD subprogram is called, a numerical value is taken to the single chip microcomputer, display is carried out, and different driving subprograms are called after judgment.
3. System subprogram design
Temperature sampling and AD subroutine: the AD subroutine is mainly used to start AD conversion and store the converted values.
4. Display processing subroutine
And the display subprogram completes data processing and display.
Second, debugging and result analysis
1. Hardware debugging
(1) And (4) carefully welding a preceding-stage signal acquisition and analog-to-digital conversion circuit according to a designed circuit diagram.
(2) And after carefully checking the problem of no solder joint missing, debugging in stages.
(3) And debugging a preceding-stage signal acquisition amplifying circuit, observing a source signal and an amplified signal by using two channels of an oscilloscope after the power supply is connected, finding that the signal can be normally amplified, wherein the average amplification factor is about 49.3 times, and considering that the signal works normally under the condition that an error allows.
(4) And debugging the AD conversion circuit, connecting a variable power supply to the input of the AD circuit, observing the output, displaying 3.09V after AD processing when the input is 3.2V, and basically keeping the relative error unchanged after a plurality of times of tests. And if the error allows, the work is considered to be normal.
(5) And (5) cascade debugging, and working normally.
2. Software debugging
The design adopts C language to compile and has good portability. The environment was compiled using KeiluVision 3. After each subprogram and the main program are carefully compiled, debugging work is started after no syntax compiling error is checked by a compiler;
the AD subprogram is debugged firstly, after being executed step by step, the AD subprogram is considered to work normally, then the display processing subprogram is debugged, an arbitrary number value is input to find that the AD subprogram can be displayed normally, and finally the AD subprogram is connected with the main program to be debugged by a whole machine, and the AD subprogram can work normally after debugging.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A method for manufacturing an automatic control panel of a disinfection cabinet mainly comprises the following steps: printed circuit board, singlechip, potentiometre, digital-to-analog converter, button control circuit and display module, its characterized in that: the method comprises the following five steps:
the method comprises the following steps: the printed circuit board is respectively welded and provided with a singlechip, a potentiometer, a digital-to-analog converter, a key control circuit and a display module which are matched with each other;
step two: the key control circuit barrel operation keys are matched with workers to set the single chip microcomputer, and the automatic control information of the disinfection cabinet is set;
step three: the digital-to-analog converter converts the electric signal pushed by the potentiometer into a digital code and then pushes the digital code to the singlechip for processing;
step four: the single chip microcomputer analyzes and processes the control information, and the control information is displayed through the display module, so that a worker can observe and master the control information;
step five: the single chip microcomputer simultaneously pushes the processed information to the digital-to-analog converter, and then the digital-to-analog converter converts the digital code into an electric signal and pushes the electric signal to the potentiometer for regulation and operation, so that the automatic control operation of the disinfection cabinet is realized.
2. The method for manufacturing an automatic control panel of a disinfection cabinet as claimed in claim 1, wherein: the single chip microcomputer adopts an 89C52RC chip, and the 89C52RC chip is an 80C51 microcontroller, contains a 16KB on-chip Flash program memory and has the functions of system programming and application programming; a data RAM containing 512 bytes; 5.5-3.3V of working voltage and 0-40 MHz of operating frequency.
3. The method for manufacturing an automatic control panel of a disinfection cabinet as claimed in claim 1, wherein: the potentiometer replaces an analog temperature sensor, the acquisition circuit adopts a classic bridge, the amplification circuit adopts a classic differential amplification circuit, and in the temperature measurement bridge, one of the two potentiometers simulates the temperature sensor such as PT 100; the other is a zero potentiometer.
4. The method as claimed in claim 1, wherein the D/A converter circuit is an 8-bit non-COMS sequential approximation type digital signal converter, the access time is 135US, the resolution is 8 bits, the conversion time is 100US, the total error is about plus or minus 1L SB, and the input clock signal is limited to 100 KHZ-1450 KHZ.
5. The method for manufacturing an automatic control panel of a disinfection cabinet as claimed in claim 1, wherein: the key control circuit uses three keys H1, H2 and H3, and the keys are respectively corresponding to stop, operation and heat preservation.
6. The method for manufacturing an automatic control panel of a disinfection cabinet as claimed in claim 1, wherein said display module comprises 6 nixie tubes and 74L S138 decoder, dynamic scanning is adopted, the first 3 bits display real-time temperature, and the last 3 bits display voltage for debugging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010434778.9A CN111506128A (en) | 2020-05-21 | 2020-05-21 | Manufacturing method of automatic control panel of disinfection cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010434778.9A CN111506128A (en) | 2020-05-21 | 2020-05-21 | Manufacturing method of automatic control panel of disinfection cabinet |
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| CN111506128A true CN111506128A (en) | 2020-08-07 |
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| CN202010434778.9A Pending CN111506128A (en) | 2020-05-21 | 2020-05-21 | Manufacturing method of automatic control panel of disinfection cabinet |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2497790Y (en) * | 2001-08-21 | 2002-07-03 | 顺德市希贵电器制造有限公司 | Vertical computer sterilizing cubinet |
| CN203029654U (en) * | 2012-12-28 | 2013-07-03 | 广东万家乐燃气具有限公司 | Modeling controlled disinfection cabinet |
| CN103705954A (en) * | 2013-09-24 | 2014-04-09 | 张朝峰 | Tableware disinfection cabinet and manufacturing method thereof |
-
2020
- 2020-05-21 CN CN202010434778.9A patent/CN111506128A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2497790Y (en) * | 2001-08-21 | 2002-07-03 | 顺德市希贵电器制造有限公司 | Vertical computer sterilizing cubinet |
| CN203029654U (en) * | 2012-12-28 | 2013-07-03 | 广东万家乐燃气具有限公司 | Modeling controlled disinfection cabinet |
| CN103705954A (en) * | 2013-09-24 | 2014-04-09 | 张朝峰 | Tableware disinfection cabinet and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 南昌航空大学信息工程学院: "消毒柜电脑控制器", 《百度文库》 * |
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Application publication date: 20200807 |