CN109298315B - Full-automatic detection circuit and detection method for oven power panel - Google Patents
Full-automatic detection circuit and detection method for oven power panel Download PDFInfo
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- CN109298315B CN109298315B CN201811158652.2A CN201811158652A CN109298315B CN 109298315 B CN109298315 B CN 109298315B CN 201811158652 A CN201811158652 A CN 201811158652A CN 109298315 B CN109298315 B CN 109298315B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention comprises a full-automatic detection circuit of an oven power panel, which comprises a main control circuit, wherein the main control circuit is connected with a display circuit, a buzzer circuit, a communication circuit and a relay test circuit.
Description
Technical Field
The invention relates to a full-automatic detection circuit and a detection method for an oven power panel.
Background
The oven is a sealed electric appliance used for baking food, the power panel of the oven is the most important circuit board used for controlling the functions of the oven, the power panel needs to be detected before the oven leaves a factory, whether the functions of the power panel normally run or not is judged, the current detection is carried out manually, each index is judged manually, the qualification rate is greatly reduced because workers are influenced by academic records and emotions and can be judged wrongly frequently, and the working efficiency is low, so that the production efficiency and the qualification rate of the oven are greatly restricted.
Disclosure of Invention
Aiming at the current situation of the prior art, the invention aims to solve the technical problems that: the detection circuit and the detection method thereof can realize full-automatic detection of the oven power panel.
In order to solve the technical problems, the technical scheme of the invention is as follows: a full-automatic detection circuit for an oven power panel comprises a main control circuit, wherein the main control circuit is connected with a display circuit, a buzzer circuit, a communication circuit and a relay test circuit.
Further, master control circuit is including MCU, display circuit is including having the digital display screen, buzzer circuit is including bee calling organ, relay test circuit is including the LED lamp.
A full-automatic detection method for an oven power panel comprises the following steps:
a. the oven power panel sends the version number to the MCU through the communication circuit, if the version number is inconsistent with the program issued by the MCU, the digital display screen displays E1, the buzzer sounds for alarming for a long time, and if the version number is consistent with the program issued, the next detection is carried out;
b. the communication circuit sends a test code to the MCU, and if the MCU receives the test code, the next detection is carried out; if the MCU does not receive the test code, the digital display screen displays E7, and the buzzer sounds for alarming for a long time;
c. the temperature probe on the tool is connected with the precision resistor, converts the analog signal into a digital signal, transmits the digital signal to the MCU through the communication circuit, detects the AD value of the upper temperature, and performs the next detection if the AD value is 126 plus 136; if the range is exceeded, the digital display screen displays E2, and the buzzer sounds for alarming;
d. the temperature probe on the tool is connected with a precision resistor, an analog signal is converted into a digital signal, the digital signal is transmitted to the MCU through the communication circuit, the lower temperature AD value is detected, and if the AD value is 22-32, the next detection is carried out; if the range is exceeded, the digital display screen displays E3, and the buzzer sounds for alarming;
e. detecting the voltage AD value of the power panel, and if the AD value is 790 and 810, carrying out the next detection; if the range is exceeded, the digital display screen displays E4, and the buzzer sounds for alarming;
f. the relay test circuit comprises 7 paths in total, internal heating, upper external heating, back heating, bottom heating, a circulating fan, an air heater and a lighting lamp on the oven are respectively tested, and the 7 paths of test circuits are sequentially detected.
Compared with the prior art, the invention has the following beneficial effects: the invention can replace manual work to detect and judge, when the detected power panel of the oven has problems, the buzzer of the detection circuit can automatically alarm for long-time sounding and inform workers of further detection, thereby avoiding the manual judgment of the workers and improving the detection efficiency and the detection accuracy.
Drawings
FIG. 1 is a main control circuit of the present invention;
FIG. 2 is a display circuit according to the present invention;
FIG. 3 is a display circuit according to the present invention;
FIG. 4 shows a buzzer circuit according to the present invention;
FIG. 5 is a communication circuit according to the present invention.
Detailed Description
The utility model provides a full automated inspection circuit of oven power strip, including master control circuit, this master control circuit connection display circuit, buzzer circuit, communication circuit and relay test circuit, master control circuit is including MCU, and display circuit includes the digital display screen, and buzzer circuit is including bee calling organ, and relay test circuit is including the LED lamp.
The model of the MCU is R5F100FCAFP # X0, wherein pins 39, 40 and 41 are connected with a display circuit, pins 29 and 30 are connected with a communication circuit, a pin 32 is connected with a buzzer circuit, and a pin 16-22 is connected with a relay test circuit;
next, the communication circuit sends a test code 0x8c 0x 040 x3c 0xcc, if the MCU receives 0x8d 0x 030 x 270 xb7, the next step is carried out, otherwise, the digital display screen displays E7, and the buzzer sounds long;
next, because the temperature probe is connected with the precision resistor on the tool, the detected temperature can be converted into a digital signal, the digital signal is transmitted to the MCU through the communication circuit, the precision resistor is 1.5K plus or minus 1%, and if the transmitted AD value is 126 and 136, the next detection is carried out; if the range is exceeded, the digital display screen displays E2, and the buzzer sounds for alarming;
similarly, the temperature probe is connected with a precision resistor under the tool, and if the transmitted AD value is 22-32, the next detection is carried out; if the range is exceeded, the digital display screen displays E3, and the buzzer sounds for alarming;
next, detecting the AD value of the power panel, and if the AD is 790 and 810, carrying out the next detection; if the range is exceeded, the digital display screen displays E4 and the buzzer sounds for alarming.
The detection is carried out fully automatically, and the AD value does not need to be seen manually, so that the detection efficiency and the detection correctness can be greatly improved.
And finally, detecting whether the relay of each function key is normally used, connecting the relay with a relay test circuit, connecting the relay test circuit with the MCU and the bulb, and only needing to switch on the light emitting diode of the relay test circuit, wherein the bulb is lightened, the relay is normal, and if the bulb is not lightened, the relay is abnormal, thereby achieving the purpose of detection.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The detection method of the full-automatic detection circuit of the oven power panel is characterized in that the detection circuit comprises a main control circuit, the main control circuit is connected with a display circuit, a buzzer circuit, a communication circuit and a relay test circuit, the main control circuit comprises an MCU (microprogrammed control unit), the display circuit comprises a digital display screen, the buzzer circuit comprises a buzzer, the relay test circuit comprises a light emitting diode, and the detection method of the detection circuit comprises the following steps:
a. the oven power panel sends the version number to the MCU through the communication circuit, if the version number is inconsistent with the program issued by the MCU, the digital display screen displays E1, the buzzer sounds for alarming for a long time, and if the version number is consistent with the program issued, the next detection is carried out;
b. the communication circuit sends a test code to the MCU, and if the MCU receives the test code, the next detection is carried out; if the MCU does not receive the test code, the digital display screen displays E7, and the buzzer sounds for alarming for a long time;
c. the temperature probe on the tool is connected with the precision resistor, converts the analog signal into a digital signal, transmits the digital signal to the MCU through the communication circuit, detects the AD value of the upper temperature, and performs the next detection if the AD value is 126 plus 136; if the range is exceeded, the digital display screen displays E2, and the buzzer sounds for alarming;
d. the temperature probe on the tool is connected with a precision resistor, an analog signal is converted into a digital signal, the digital signal is transmitted to the MCU through the communication circuit, the lower temperature AD value is detected, and if the AD value is 22-32, the next detection is carried out; if the range is exceeded, the digital display screen displays E3, and the buzzer sounds for alarming;
e. detecting the voltage AD value of the power panel, and if the AD value is 790 and 810, carrying out the next detection; if the range is exceeded, the digital display screen displays E4, and the buzzer sounds for alarming;
f. the relay test circuit comprises 7 paths in total, the internal heating, the external heating, the back heating, the bottom heating, the circulating fan, the air heater and the illuminating lamp on the oven are respectively tested, and the 7 paths of test circuits are sequentially detected; the steps realize full-automatic detection, and the AD value does not need to be checked manually, so that the detection efficiency and the detection correctness are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158652.2A CN109298315B (en) | 2018-09-30 | 2018-09-30 | Full-automatic detection circuit and detection method for oven power panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811158652.2A CN109298315B (en) | 2018-09-30 | 2018-09-30 | Full-automatic detection circuit and detection method for oven power panel |
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| Publication Number | Publication Date |
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| CN109298315A CN109298315A (en) | 2019-02-01 |
| CN109298315B true CN109298315B (en) | 2021-05-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110045270B (en) * | 2019-05-11 | 2024-05-17 | 宁波吉田智能洁具科技有限公司 | Integrated detection glue filling line |
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| CN107064823A (en) * | 2017-05-08 | 2017-08-18 | 郑州云海信息技术有限公司 | A kind of system for testing power panel and its method for testing power panel |
| CN107518778A (en) * | 2017-08-25 | 2017-12-29 | 深圳市阳邦电子股份有限公司 | The application circuit and application process of a kind of electric oven |
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| CN102789230A (en) * | 2012-08-13 | 2012-11-21 | 海信（山东）空调有限公司 | Method for automatically detecting air conditioner outdoor unit control panel |
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| CN206671482U (en) * | 2017-02-16 | 2017-11-24 | 苏州维信电子有限公司 | A kind of circuit board testing system |
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