CN103309373B - Low-temperature single chip microcomputer starting and working method and low-temperature running single chip microcomputer system for achieving method - Google Patents
Low-temperature single chip microcomputer starting and working method and low-temperature running single chip microcomputer system for achieving method Download PDFInfo
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- CN103309373B CN103309373B CN201310275453.0A CN201310275453A CN103309373B CN 103309373 B CN103309373 B CN 103309373B CN 201310275453 A CN201310275453 A CN 201310275453A CN 103309373 B CN103309373 B CN 103309373B
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Abstract
The invention relates to a low-temperature running single chip microcomputer system and belongs to the field of electronic technological application. The problems that an existing single chip microcomputer cannot be started in a low-temperature environment and cannot stably accurately work in the low-temperature environment are solved. The method comprises the steps of adopting a short time heating lamp to instantaneously heat the working environment of the single chip microcomputer when the single chip microcomputer is started; monitoring the temperature of the working environment of the single chip microcomputer in the working process of the single chip microcomputer, and controlling the heating lamp to control the temperature of the working environment of the single chip microcomputer according to the temperature. A capacitor C in the low-temperature running single chip microcomputer system, a short time heating lamp J1 and a current-limiting and discharge resistor R1 are in series connection between an anode and a cathode of a direct current power supply of the single chip microcomputer, the temperature signal output end of a digital temperature sensor W is connected with the temperature collecting signal input end of the single chip microcomputer, and the single chip microcomputer controls a controllable heating lamp J2 to be turned on or turned off through a driving field-effect tube T. According to the low-temperature single chip microcomputer starting and working method, low-temperature starting and running of the single chip microcomputer system can be guaranteed.
Description
Technical field
The invention belongs to application of electronic technology field.
Background technology
In electronic technology, single-chip microcomputer is a kind of important microprocessor chip.Single Chip Microcomputer (SCM) system is a kind of widely used digital electronic system powerful again.The working temperature of single-chip microcomputer is generally between subzero 20 degrees Celsius to 60 degrees Celsius above freezing.In this temperature range, single-chip microcomputer can normally work, but after exceeding this temperature range, single-chip microcomputer just can not normally work, and then affects the work of whole single-chip computer control system.Restriction due to this parameter makes Single Chip Microcomputer (SCM) system be restricted in the application of cold district.At cold district, because environment temperature is too low, some is caused to adopt single-chip microcomputer to be that the problem that the equipment of core or instrument and meter cannot normally start often exists, also there is some adopts single-chip microcomputer to be that the equipment of core or instrument and meter can normally work by day, and after nocturnal temperature reduces, the problem that cannot normally work.
Summary of the invention
In order to solve existing single-chip microcomputer by the restriction of himself performance, cannot start in low temperature environment and serviceability is affected, even cannot works in low temperature environment problem, the present invention devises a kind of cold operation Single Chip Microcomputer (SCM) system.
Cold operation Single Chip Microcomputer (SCM) system of the present invention comprises Short Time Heating lamp J1, electric capacity C, current limliting and discharge resistance R1, controlled heating lamp J2, drive field effect transistor T, pull-up resistor R2, current-limiting resistance R3, single-chip microcomputer and digital temperature sensor W, electric capacity C, between the positive pole that Short Time Heating lamp J1 and current limliting and discharge resistance R1 are connected on the DC power supply of single-chip microcomputer and negative pole, one end of digital temperature sensor W is connected with the positive pole of described DC power supply by pull-up resistor R2, one end of described digital temperature sensor W is connected with two temperature acquisition signal input parts of single-chip microcomputer respectively with the other end, current-limiting resistance R3 is in series with between the other end of described digital temperature sensor W and the positive pole of DC power supply, controlled heating lamp J2 and driving field effect transistor T, the control end of described driving field effect transistor T connects the digital temperature sensor drive singal output terminal of single-chip microcomputer.
Described cold operation Single Chip Microcomputer (SCM) system can also comprise housing, and described Short Time Heating lamp J1, electric capacity C, current limliting and discharge resistance R1, controlled heating lamp J2, driving field effect transistor T, pull-up resistor R2, current-limiting resistance R3, single-chip microcomputer and digital temperature sensor W are enclosed in this enclosure interior.This housing can realize the function be incubated, and then reduces the number of times starting controlled heating lamp, increases the serviceable life of this cold operation Single Chip Microcomputer (SCM) system.
Be embedded with temperature software model in above-mentioned single-chip microcomputer, described software module comprises:
Gather the temperature collecting cell of digital temperature sensor W temperature;
The temperature of collection is stored into the acquired data storage unit in temperature array;
Temperature data according to the multi collect in the temperature array in data storage cell calculates the medial temperature acquiring unit obtaining medial temperature;
Judge whether medial temperature is less than or equal to minimum operating temperature, and send enabling signal to the minimum operating temperature judging unit of heating lamp control module when judged result is and is;
Judge whether medial temperature is more than or equal to maximum operating temperature, and send stop signal to the maximum operating temperature judging unit of heating lamp control module when judged result is and is;
Start to heat, controlling the heating lamp control module that controlled heating lamp stops heating when receiving stop signal for starting controlled heating lamp when receiving enabling signal.
Low temperature single-chip microcomputer of the present invention starts and method of work, the method of the instantaneous heating of start is adopted to improve the environment temperature of single-chip microcomputer place working environment, and then single-chip microcomputer can be started, after startup, in the course of the work, the monitoring of the environment temperature passed through and the control to heating lamp, realize the control to environment temperature, and then ensure that single-chip microcomputer system works is in suitable temperature range, ensures the reliability service of Single Chip Microcomputer (SCM) system.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of cold operation Single Chip Microcomputer (SCM) system of the present invention.
Fig. 2 is the workflow diagram being embedded in the software control module of single-chip microcomputer inside of the present invention.
Embodiment
Low temperature single-chip microcomputer described in embodiment one, present embodiment starts and method of work is:
When single-chip microcomputer starts, adopt Short Time Heating lamp to carry out instantaneous heating to single-chip microcomputer place working environment, make the instantaneous environment temperature being increased to single-chip microcomputer and adapting to of described operating ambient temperature, and then ensure the normal startup of single-chip microcomputer;
In the single-chip microcomputer course of work, by the temperature of temperature sensor Real-time Collection single-chip microcomputer working environment, when the temperature gathered is less than or equal to minimum operating temperature, start another heating lamp to heat single-chip microcomputer place working environment, when the temperature gathered is more than or equal to maximum operating temperature, another heating lamp is stopped to heat single-chip microcomputer place working environment.
The temperature of above-mentioned collection can be the temperature of actual acquisition, can also be the medial temperature obtained according to the multiple temperature computation gathered.
Above-mentioned minimum operating temperature and maximum operating temperature are according to the optimum configurations of single-chip microcomputer itself, wherein: minimum operating temperature is higher than the lower limit of the working temperature in single-chip microcomputer performance parameter, maximum operating temperature lower than the upper limit of the working temperature in single-chip microcomputer performance parameter, and then ensures that single-chip microcomputer is operated in its temperature environment be applicable to.
Embodiment two, described in present embodiment is realize low temperature single-chip microcomputer described in embodiment one to start and the cold operation Single Chip Microcomputer (SCM) system of method of work, this system comprises Short Time Heating lamp J1, electric capacity C, current limliting and discharge resistance R1, controlled heating lamp J2, drive field effect transistor T, pull-up resistor R2, current-limiting resistance R3, single-chip microcomputer and digital temperature sensor W, electric capacity C, between the positive pole that Short Time Heating lamp J1 and current limliting and discharge resistance R1 are connected on the DC power supply of single-chip microcomputer and negative pole, one end of digital temperature sensor W is connected with the positive pole of described DC power supply by pull-up resistor R2, one end of described digital temperature sensor W is connected with two temperature acquisition signal input parts of single-chip microcomputer respectively with the other end, current-limiting resistance R3 is in series with between the other end of described digital temperature sensor W and the positive pole of DC power supply, controlled heating lamp J2 and driving field effect transistor T, the control end of described driving field effect transistor T connects the digital temperature sensor drive singal output terminal of single-chip microcomputer.
Embodiment three, present embodiment are the further restrictions to the cold operation Single Chip Microcomputer (SCM) system described in embodiment two, in present embodiment, the model of described Short Time Heating lamp J1 is C9-3V, its operating voltage is 3 volts, the capacitance of electric capacity C is 20 μ F, withstand voltage is 10 volts, and the resistance of current limliting and discharge resistance R1 is 5.1 ohm.
The design parameter of the Short Time Heating lamp J1, electric capacity C and the discharge resistance R1 that limit in present embodiment, under this parameter, the instantaneous heating power of Short Time Heating lamp J1 is 0.75 watt.
Embodiment four, present embodiment are the further restrictions to the cold operation Single Chip Microcomputer (SCM) system described in embodiment two, add housing in present embodiment, described Short Time Heating lamp J1, electric capacity C, current limliting and discharge resistance R1, controlled heating lamp J2, driving field effect transistor T, pull-up resistor R2, current-limiting resistance R3, single-chip microcomputer and digital temperature sensor W are enclosed in this enclosure interior.
This housing can realize the function be incubated, and then reduces the number of times starting controlled heating lamp, increases the serviceable life of this cold operation Single Chip Microcomputer (SCM) system.
Embodiment five, present embodiment are the further restrictions to the cold operation Single Chip Microcomputer (SCM) system described in embodiment three, and in present embodiment, be embedded with temperature software model in single-chip microcomputer, described software module comprises:
Gather the temperature collecting cell of digital temperature sensor W temperature;
The temperature of collection is stored into the acquired data storage unit in temperature array;
Temperature data according to the multi collect in the temperature array in data storage cell calculates the medial temperature acquiring unit obtaining medial temperature;
Judge whether medial temperature is less than or equal to minimum operating temperature, and send enabling signal to the minimum operating temperature judging unit of heating lamp control module when judged result is and is;
Judge whether medial temperature is more than or equal to maximum operating temperature, and send stop signal to the maximum operating temperature judging unit of heating lamp control module when judged result is and is;
Start to heat, controlling the heating lamp control module that controlled heating lamp stops heating when receiving stop signal for starting controlled heating lamp when receiving enabling signal.
Single-chip microcomputer in embodiment six, cold operation Single Chip Microcomputer (SCM) system of the present invention can be existing any one single-chip microcomputer, such as: C8051F020, when adopting the single-chip microcomputer of this model, P0.0 with P0.1 of this single-chip microcomputer can be connected with the two ends of digital temperature sensor, realize the driving to digital temperature sensor and temperature acquisition.Physical circuit schematic diagram is shown in Figure 1, and the principle of work of cold operation Single Chip Microcomputer (SCM) system of the present invention is described referring to Fig. 1:
When Single Chip Microcomputer (SCM) system is started working, direct supply goes into operation power supply, because the voltage at capacitor C two ends can not transition, therefore in the start time of DC power supply, the voltage at its two ends is zero, now, the voltage that DC power supply exports just directly is loaded into the two ends of Short Time Heating lamp J1, and because the resistance of current limliting and discharge resistance R1 is very little, most of voltage can be loaded into the two ends of this Short Time Heating lamp J1, thus this Short Time Heating lamp J1 made, be lit luminescence, realize heating function; Along with the lengthening of power-on time, capacitor C realizes charging by current limliting and discharge resistance R1, makes the voltage at controlled heating lamp J1 two ends more and more lower, and then stops heating.By the resistance of the power and discharge resistance R1 that design suitable Short Time Heating lamp 1, realize to be heated to instantaneous for the temperature of the working environment of single-chip microcomputer on minimum heating-up temperature when starting this Short Time Heating lamp J1.
At single-chip microcomputer duration of work, by the temperature of digital temperature sensor Real-time Collection single-chip microcomputer place environment, when described environment temperature is less than minimum heating-up temperature, single-chip microcomputer exports high level by digital temperature sensor drive singal output port and controls to drive field effect transistor conducting, thus make controlled heating lamp light heating, environment is heated, environment temperature is raised.When environment temperature is higher than maximum heating temperature, single-chip microcomputer controls to drive field effect transistor to turn off by digital temperature sensor drive singal output port output low level, thus makes controlled heating lamp stop heating.
The instantaneous heating function of start of the present invention can make Single Chip Microcomputer (SCM) system start in low temperature environment, after startup, in the course of the work, the monitoring of the environment temperature passed through and the control to heating lamp, realize the control to environment temperature, and then ensure that single-chip microcomputer system works is in suitable temperature range, ensures the reliability service of Single Chip Microcomputer (SCM) system.
Claims (4)
1. cold operation Single Chip Microcomputer (SCM) system, it is characterized in that, described system comprises Short Time Heating lamp (J1), electric capacity (C), current limliting discharge resistance (R1), controlled heating lamp (J2), drive field effect transistor (T), pull-up resistor (R2), current-limiting resistance (R3), single-chip microcomputer and digital temperature sensor (W), electric capacity (C), between the positive pole that Short Time Heating lamp (J1) and current limliting discharge resistance R1 are connected on the DC power supply of single-chip microcomputer and negative pole, one end of digital temperature sensor (W) is connected with the positive pole of described DC power supply by pull-up resistor (R2), one end of described digital temperature sensor (W) is connected with two temperature acquisition signal input parts of single-chip microcomputer respectively with the other end, current-limiting resistance (R3) is in series with between the other end of described digital temperature sensor (W) and the positive pole of DC power supply, controlled heating lamp (J2) and driving field effect transistor (T), the control end of described driving field effect transistor (T) connects the field effect transistor drive singal output terminal of single-chip microcomputer.
2. cold operation Single Chip Microcomputer (SCM) system according to claim 1, it is characterized in that, the model of described Short Time Heating lamp (J1) is C9-3V, its operating voltage is 3 volts, the capacitance of electric capacity (C) is 20 μ F, withstand voltage is 10 volts, and the resistance of current limliting discharge resistance (R1) is 5.1 ohm.
3. cold operation Single Chip Microcomputer (SCM) system according to claim 1, it is characterized in that, described system also comprises housing, and described Short Time Heating lamp (J1), electric capacity (C), current limliting and discharge resistance (R1), controlled heating lamp (J2), driving field effect transistor (T), pull-up resistor (R2), current-limiting resistance (R3), single-chip microcomputer and digital temperature sensor (W) are enclosed in this enclosure interior.
4. cold operation Single Chip Microcomputer (SCM) system according to claim 1, is characterized in that, is embedded with temperature software model in single-chip microcomputer, and described software module comprises:
Gather the temperature collecting cell of digital temperature sensor (W) temperature;
The temperature of collection is stored into the acquired data storage unit in temperature array;
Temperature data according to the multi collect in the temperature array in data storage cell calculates the medial temperature acquiring unit obtaining medial temperature;
Judge whether medial temperature is less than or equal to minimum operating temperature, and send enabling signal to the minimum operating temperature judging unit of heating lamp control module when judged result is and is;
Judge whether medial temperature is more than or equal to maximum operating temperature, and send stop signal to the maximum operating temperature judging unit of heating lamp control module when judged result is and is;
Start to heat, controlling the heating lamp control module that controlled heating lamp stops heating when receiving stop signal for starting controlled heating lamp when receiving enabling signal.
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| CN201310275453.0A CN103309373B (en) | 2013-07-02 | 2013-07-02 | Low-temperature single chip microcomputer starting and working method and low-temperature running single chip microcomputer system for achieving method |
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| CN201310275453.0A CN103309373B (en) | 2013-07-02 | 2013-07-02 | Low-temperature single chip microcomputer starting and working method and low-temperature running single chip microcomputer system for achieving method |
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| CN103309373B true CN103309373B (en) | 2015-03-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102014200091A1 (en) * | 2014-01-08 | 2015-07-09 | Robert Bosch Gmbh | Method for heating an output stage of a control unit of a motor vehicle |
| CN104317329B (en) * | 2014-11-20 | 2016-10-26 | 兰州理工大学 | A kind of large-scale place based on Bluetooth technology temperature integrated intelligence accuracy-control system |
| CN107390747B (en) * | 2017-07-31 | 2019-08-09 | 北京宇航系统工程研究所 | A kind of temperature control system |
| CN107390741B (en) * | 2017-07-31 | 2019-08-09 | 北京宇航系统工程研究所 | A kind of temprature control method |
| CN108583977A (en) * | 2018-06-28 | 2018-09-28 | 温州赤焰科技有限公司 | The instantaneously heated bundling device of direct current safe voltage and its transient heating control circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201181427Y (en) * | 2008-03-26 | 2009-01-14 | 上海华平信息技术股份有限公司 | Equipment internal temperature control device |
| CN102331936B (en) * | 2010-07-12 | 2015-09-09 | 微盟电子(昆山)有限公司 | The electronic installation that can start in low temperature environment and starting method thereof |
| CN103064493B (en) * | 2011-10-21 | 2016-01-20 | 神讯电脑(昆山)有限公司 | Electronic installation and preheat method and preheating apparatus |
| CN202738131U (en) * | 2012-06-06 | 2013-02-13 | 北京昆仑纵横科技发展有限公司 | Low-temperature-startup film heating device and apparatus using same |
| CN202857210U (en) * | 2012-09-17 | 2013-04-03 | 西安天伟电子系统工程有限公司 | Low temperature starting device of electronic unit |
| CN203025577U (en) * | 2012-11-15 | 2013-06-26 | 长安大学 | Temperature control device based on single chip microcomputer |
| CN202975869U (en) * | 2012-12-28 | 2013-06-05 | 上海神开石油化工装备股份有限公司 | Ultra low temperature control system |
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