CN103488211B - A kind of intelligent machine box temperature control system and method - Google Patents
A kind of intelligent machine box temperature control system and method Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention proposes a kind of SCM Based intelligentized system for controlling case temperature and method, described system for controlling case temperature comprises single-chip microcomputer, temperature in chassis sensor, the outer temperature sensor of cabinet, fan and fan run driving circuit, the temperature value of two temperature sensor senses exports to single-chip microcomputer, described single-chip microcomputer comprises fan low-speed running control end and fan and to run up control end, be connected to fan and run driving circuit, described fan operation driving circuit SCM Based control signal control fan is in and runs up, low-speed running or the state that shuts down, the solution of the present invention has taken into full account the temperature conditions of environment residing for the temperature of cabinet inside and cabinet, a kind of temperature control strategy that can consider cabinet internal and external temperature environment of proposition of innovation, and then make that described cabinet can be lasting work in desirable temperature conditions, improve temperature control efficiency, effectively reduce fan power consumption.
Description
Technical field
The present invention relates to domain of control temperature, relate to a kind of SCM Based system for controlling case temperature and method more specifically.
Background technology
Traditional cabinet is directly utilize power supply to power to fan as controlled in the temperature of computer housing, and fan often transfers the temperature controlling cabinet, is so not only difficult to reach the temperature of cabinet control accurately, and can causes the larger waste of electric energy.Sometimes in order to reduce noise in prior art, also adopt adjustable rheostat to regulate the rotating speed of fan, but this adjustment artificially does not also control the rotating speed of fan according to the actual temperature of cabinet, the temperature in cabinet cannot be controlled within ideal range according to actual environment.Also have in prior art and detect the temperature in cabinet by set temperature sensor in cabinet, and control fan running to reach the technology of desirable cooling effect according to this testing result, but this temperature sensor is often arranged at the ad-hoc location in cabinet, merely according to the operation of the detection Numerical Control fan of temperature sensor, do not consider the temperature conditions of environment residing for cabinet, even if the heat generating components such as in summer cabinet is in off-duty state, because environment temperature is higher, the temperature value that this temperature in chassis sensor detects also may reach fan and run unlocking condition, cause the waste of electric energy, and in winter of cold, although heater element is awfully hot, but because of the natural convection of circumstance of temperature difference, the temperature value that temperature in chassis sensor senses is on the low side may not reach fan open temp condition, heater element is caused to be damaged by heat, therefore in prior art when controlling the temperature of the cabinet containing heater element, do not reach the effect of accurate controller the temperature inside the box, have impact on the normal operation of heater element, and cause the waste of electric energy to a certain extent.
Summary of the invention
The present invention is for solving the problems of the technologies described above, a kind of SCM Based intelligentized housing temperature automatic control system and method are proposed, take into full account the temperature conditions of environment residing for the temperature of cabinet inside and cabinet, introduce two temperature sensors, and by the numerical relation analysis of single-chip microcomputer to sensor detected temperatures, a kind of temperature control strategy that can consider cabinet internal and external temperature environment of proposition of innovation, and then make that described cabinet can be lasting work in desirable temperature conditions, improve temperature control efficiency, effectively reduce fan power consumption, and improve the serviceable life of heater element.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme:
A kind of intelligent machine box temperature control system, comprise single-chip microcomputer, temperature in chassis sensor, cabinet outer temperature sensor, fan and fan operation driving circuit, the temperature value of two temperature sensor senses exports to single-chip microcomputer, described single-chip microcomputer comprises fan low-speed running control end and fan and to run up control end, be connected to fan and run driving circuit, described fan run the SCM Based control signal of driving circuit control fan be in run up, low-speed running or the state that shuts down.
Further according to intelligent machine box temperature control system of the present invention, wherein said fan runs driving circuit and comprises divider resistance, voltage source V CC and four transistor, the fan low-speed running control end of described single-chip microcomputer is connected to the base stage of first crystal triode, the collector of first crystal triode is connected to voltage source V CC, the emitter of first crystal triode is connected to the base stage of the 3rd transistor, the collector of the 3rd transistor is connected to fan one end through divider resistance, the grounded emitter of the 3rd transistor, the other end of fan is connected to described voltage source V CC, the fan of the described single-chip microcomputer control end that runs up is connected to the base stage of the second transistor, the collector of the second transistor is connected to described voltage source V CC, the emitter of the second transistor is connected to the base stage of the 4th transistor, the collector of the 4th transistor is connected to one end of described fan, the grounded emitter of the 4th transistor.
Further according to intelligent machine box temperature control system of the present invention, wherein also comprise charactron driving chip and charactron, described charactron driving chip is connected to the Temperature displaying state output end of single-chip microcomputer, described charactron is connected to charactron driving chip, for temperature in chassis and the cabinet external environment temperature of displays temperature sensor sensing.
Further according to intelligent machine box temperature control system of the present invention, wherein the base terminal of above-mentioned four transistors is all connected with resistance, and four transistors are NPN transistor, described first crystal triode and the second transistor are miniwatt transistor, the quantity of described fan is two, and parallel with one another being arranged in cabinet.
Further according to intelligent machine box temperature control system of the present invention, the fan work temperature look-up table of standard is prestored in wherein said single-chip microcomputer, under described fan work temperature look-up table provides various cabinet external environment temperature value, corresponding to the temperature in chassis value condition of the various running status of fan, the open temp condition that specifically comprises that fan cuts out operating temperature condition, fan low-speed running open temp condition, fan run up closing temperature condition and fan runs up.
Further according to intelligent machine box temperature control system of the present invention, wherein when the temperature of described temperature sensor senses meets described fan low-speed running open temp condition, the fan low-speed running control end of described single-chip microcomputer exports high level signal, fan runs up control end output low level signal, when the temperature of described temperature sensor senses meet described fan run up open temp condition time, the fan of the described single-chip microcomputer control end that runs up exports high level signal, fan low-speed running control end output low level signal, when the temperature of described temperature sensor senses meet described fan run up closing temperature condition time, the fan low-speed running control end of described single-chip microcomputer exports high level signal, fan runs up control end output low level signal, when the temperature of described temperature sensor senses meets described fan closedown operating temperature condition, the fan low-speed running control end of described single-chip microcomputer and fan run up the equal output low level signal of control end.
Further according to intelligent machine box temperature control system of the present invention, wherein said single-chip microcomputer comprises low-pass filter, fan control module and fault detection module, described low-pass filter exports to fan control module and fault detection module after carrying out filtering process to the temperature data that temperature sensor inputs respectively, described fan control module generates based on temperature data and exports the control signal of fan running status, described fault detection module carries out fault verification based on temperature data, when it exports fault-signal to fan control module, fan control module generates and exports fan and to run up control signal.
Further according to intelligent machine box temperature control system of the present invention, wherein said temperature sensor model is DS18B20, described single-chip microcomputer model is STC89C516RD+, described first crystal triode and the second transistor are the miniwatt transistor of S9013 model, and described 3rd transistor and the 4th transistor are TIP122 transistor.
A kind of intelligent control method of housing temperature, described intelligent control method carries out based on the intelligent machine box temperature control system one of technique scheme Suo Shu, the fan work temperature look-up table of standard is prestored in the single-chip microcomputer that described intelligent machine box temperature control system comprises, under described fan work temperature look-up table provides various cabinet external environment temperature value, corresponding to the temperature in chassis value condition of fan desired operation, comprise fan and close operating temperature value condition, fan low-speed running open temp value condition, run up closing temperature value condition and fan of fan runs up open temp value condition, described intelligent control method comprises the following steps:
(1), the ambient temperature value T_exp of single-chip microcomputer reading machine box outside temperature sensor sensing, and in described fan work temperature look-up table, extracts the cabinet internal standard temperature value T1 closing fan running, the cabinet internal standard temperature value T2 opening fan low-speed running according to this ambient temperature value T_exp, close cabinet internal standard temperature value T3 that fan runs up and the cabinet internal standard temperature value T4 that unlatching fan runs up;
(2), the temperature in chassis value T_in of single-chip microcomputer reading machine the temperature inside the box sensor sensing, and based on this temperature in chassis value T_in with correspond to fan desired operation described relation between cabinet internal standard temperature value T1, T2, T3, T4 and control fan and be in low speed, high speed or run-stopping status.
Further according to intelligent control method of the present invention, wherein said pass between cabinet internal standard temperature value T1, T2, T3, T4 is T1<T2<T3<T4, and described step (2) is further comprising the steps:
A, when temperature in chassis value T_in is more than or equal to cabinet internal standard temperature value T2 and is less than cabinet internal standard temperature value T4, Single-chip Controlling fan low-speed running;
B, when temperature in chassis value T_in is less than or equal to cabinet internal standard temperature value T1, Single-chip Controlling fan stops
Only running;
C, be greater than cabinet internal standard temperature value T1 as temperature in chassis value T_in and be less than cabinet internal standard temperature value
During T2, the running status of the forefan of single-chip microcomputer maintenance;
D, when temperature in chassis value T_in is more than or equal to cabinet internal standard temperature value T4, Single-chip Controlling fan is high
Speed running, until when the temperature in chassis value T_in read is less than or equal to cabinet internal standard temperature value T3, Single-chip Controlling fan switches to low-speed running state by the state of running up.
Further according to intelligent control method of the present invention, wherein also comprise failure detection steps, when the cabinet external environment temperature value T_exp that described temperature sensor detects or temperature in chassis value T_in occurs abnormal, Single-chip Controlling fan runs up.
At least following technique effect can be reached by technical scheme of the present invention:
1), by two temperature sensors detect the temperature conditions inside and outside cabinet simultaneously, improve the temperature control precision in cabinet, ensure that heating element in computer housing runs on desired temperature conditions.
2), by the operation of dynamic conditioning fan, improve the actual cooling effectiveness to cabinet, avoid the possibility that electronic component heating damages.
3), relative to traditional type of cooling, significantly reduce the use consumption to cooling electric energy, reach energy-conservation object.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit structure schematic diagram of intelligent machine box temperature control system of the present invention;
Accompanying drawing 2 is the fan work temperature look-up table preset in housing temperature intelligent control method of the present invention;
Accompanying drawing 3 is the control module structure that in intelligent machine box temperature control system of the present invention, single-chip microcomputer comprises;
Accompanying drawing 4 carries out temperature controlled example test pattern for using housing temperature intelligent control method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail, to enable those skilled in the art's understanding the solution of the present invention clearly, but does not therefore limit the scope of the invention.
As shown in Figure 1, intelligent machine box temperature control system provided by the present invention comprises single-chip microcomputer, two temperature sensors, charactron, charactron driving chip, some resistance, four transistors (NPN:S9013_1, S9013_2, TIP122_1, TIP122_2) and two fans (F1, F2).Wherein the output terminal of two temperature sensors connects single-chip microcomputer, to described single-chip microcomputer input temp sensing signal, one of them temperature sensor is installed on cabinet inside, preferably near main heater element, for sensing cabinet inside temperature in real time, another temperature sensor is installed on cabinet outside, and for sensing cabinet ambient temperature accurately in real time, the model of two temperature sensors is preferably DS18B20.The Temperature displaying state output end (P0.0-P0.7 port) of described single-chip microcomputer connects described charactron driving chip, described charactron driving chip is 74HC573 chip, its output terminal connects described charactron, and described charactron is used for temperature in chassis and the cabinet external environment temperature value of displays temperature sensor sensing.Described single-chip microcomputer is preferably STC89C516RD+ single-chip microcomputer, it receives the signal that two temperature sensor T_in and T_exp transmit, (be discussed in more detail below) after internal processes analyzing and processing, the output state determining its control signal output terminal B_low (P1.0 terminal) and B_high (P1.1 terminal) is 0 or 1, wherein the B_low signal output part of single-chip microcomputer is connected to the base stage of transistor S9013_1 through resistance R1, the collector of transistor S9013_1 is connected to voltage source V CC, the emitter of transistor S9013_1 is connected to the base stage of transistor TIP122_1 through resistance R3, the collector of transistor TIP122_1 is connected to one end of two Multiple fans and the collector of transistor TIP122_2 through divider resistance R4, the grounded emitter of transistor TIP122_1, the B_high signal output part of single-chip microcomputer is connected to the base stage of transistor S9013_2 through resistance R2, the collector of transistor S9013_2 is connected to described voltage source V CC, the emitter of transistor S9013_2 is connected to the base stage of transistor TIP122_2 through resistance R5, the collector of transistor TIP122_2 is connected to two Multiple fans and resistance R4, the grounded emitter of transistor TIP122_2.Described two fans F1, F2 are connected in parallel, one end in parallel is connected to described voltage source V CC, the other end in parallel is connected to the collector of described resistance R4 and transistor TIP122_2 as mentioned above, above-mentioned two fans are preferably fixed on enclosure top (quantity can be arranged as required), be vented outward during rotation, adopt two 12V DC fan.Transistor S9013_1 and transistor S9013_2 is S9013 low-power transistor, and transistor TIP122_1 and transistor TIP122_2 is TIP122 transistor.When the program of single-chip microcomputer determines should slowly run when the first two fan, its B_low signal output part exports high level signal " 1 " i.e. B_low=1, now micro-electric current of single-chip microcomputer pin flows into the base stage of transistor S9013_1 through resistance R1, S9013_1 conducting, the small area analysis flowed out by the emitter of S9013_1 enters the base stage of transistor TIP122_1 through current-limiting resistance R3, TIP122_1 conducting, big current is through VCC → fan F1/F2 → resistance R4 → TIP122_1 → ground, fan F1 and F2 rotates, but due to the current limliting dividing potential drop effect of resistance R4, voltage source V CC only some voltage acts on fan F1 and F2, now F1 and F2 is not full-speed operation, and be in low-speed running state.Program when single-chip microcomputer inside determines as the first two fan F1, when F2 answers high-speed rotation, its B_high signal output part exports high level signal " 1 " i.e. B_high=1, now micro-electric current of single-chip microcomputer pin flows into transistor S9013_2 base stage through resistance R2, S9013_2 conducting, the small area analysis flowed out by the emitter of S9013_2 enters the base stage of TIP122_2 through current-limiting resistance R5, TIP122_2 conducting, big current is through voltage source V CC → fan F1/F2 → TIP122_2 → ground, fan F1 and F2 rotates, now the voltage of voltage source V CC almost all acts on fan F1 and F2, now F1 and F2 runs up.Here the triode that control signal output terminal B_low with B_high of single-chip microcomputer has used two power different respectively carries out secondary amplification, sufficient electric current is had when namely ensure that two fan runnings, simultaneously because afterbody (TIP122) adopts the triode by larger current, effectively reduce the working temperature of triode.
After single-chip microcomputer of the present invention like this carries out inner process analysis process based on the sensing signal of temperature sensor, control two fans and work in low-speed running state by exporting low and high level signal simultaneously and still work in the state of running up simultaneously, when sensor-based detection signal is determined to need to strengthen refrigeration to heater element, its B_high of Single-chip Controlling holds output high level that two fans can be made to run up, when sensor-based detection signal is determined only to need common refrigeration to heater element, its B_low of Single-chip Controlling holds output high level can make two fan low-speed runnings.Therefore by the circuit system structure shown in accompanying drawing 1 of the present invention, as long as set how namely temperature intelligent control strategy control fan duty based on the signal intelligent of temperature sensor in single-chip microcomputer, the Based Intelligent Control to housing temperature can be reached, make heater element work in desirable temperature environment.
The Intelligent Control Strategy of detailed description housing temperature of the present invention is come to 2-4 by reference to the accompanying drawings below.Convenient in order to describe, suppose that the temperature of the cabinet inside of the temperature sensor senses in cabinet is T_in, residing for the cabinet of cabinet external environment temperature sensor senses, the temperature of environment is T_exp, single-chip microcomputer STC89C516RD+ reads sensing temperature T_in and T_exp of two temperature sensors respectively, and control its temperature value of numeral method, the fan work temperature look-up table under standard state is prestored in single-chip microcomputer, the fan work temperature look-up table that T_in and the T_exp temperature value of reading and Qi Nei store is compared after judgement by single-chip microcomputer, determine that two fans are static, slowly run or high-speed rotation.
The fan work temperature look-up table stored in concrete single-chip microcomputer as shown in Figure 2, which show ambient temperature value, ideal relationship between temperature in chassis value and fan service condition, concrete give each ambient temperature value under correspond to the temperature in chassis value condition of the various desired operation of fan, wherein horizontal ordinate representative is environment temperature, what ordinate represented is temperature in chassis, curve LowOn represents fan low speed unlocking condition, curve LowOff represents that fan low speed closes condition, curve HighOn represents fan high speed unlocking condition, curve HighOff represents fan high speed closedown condition, namely four curves represent that fan cuts out operating temperature condition from bottom to top successively, fan low-speed running open temp condition, run up closing temperature condition and fan of fan runs up open temp condition.
The visible difference along with environment temperature, determine that the temperature in chassis value of fan operating state is also not identical, thus can consider that environment temperature decides the cryogenic conditions in cabinet, avoids the problem in background technology fully by this default fan work temperature look-up table.The detailed process that described single-chip microcomputer controls based on the running status of temperature value to fan of said fans working temperature question blank and temperature sensor actual sensed is as follows:
First, the temperature value T_exp of environment residing for the cabinet of single-chip microcomputer reading environment temperature sensor senses, and in the fan work temperature look-up table prestored, search the position of this temperature value T_exp on its horizontal ordinate wherein, then in fan work temperature look-up table, following Temperature numerical condition (the LowOn curve corresponding to horizontal ordinate T_exp temperature value is extracted according to this positional information, LowOff curve, the ordinate temperature value of HighOn curve and HighOff curve): the cabinet internal standard temperature value T1 closing fan running, open the cabinet internal standard temperature value T2 of fan low-speed running, close the cabinet internal standard temperature value T3 that fan runs up, open the cabinet internal standard temperature value T4 that fan runs up, preferred T1<T2<T3<T4.
Then, the temperature in chassis value T_in of single-chip microcomputer reading machine the temperature inside the box sensor sensing, and according to T_in temperature value and said temperature value conditions T1, relation between T2, T3, T4, fan running status is controlled as follows:
(1) when temperature in chassis value T_in is more than or equal to T2 and is less than T4, single-chip microcomputer exports control signal and B_low=1, the B_high=0 of fan low-speed running, controls fan and operates with lower-speed state;
(2) when temperature in chassis value T_in is less than or equal to T1, single-chip microcomputer exports the control signal and B_low=0, B_high=0 of cutting out fan running, controls fan and shuts down, remain static;
(3) when temperature in chassis value T_in is greater than T1 and is less than T2, single-chip microcomputer is left intact, the running status of the forefan of maintenance;
(4) when temperature in chassis value T_in is more than or equal to T4, the control signal that single-chip microcomputer output fan runs up and B_low=0, B_high=1, control fan to operate with fast state, and keep the control signal of this B_low=0, B_high=1 to export always, until when the temperature in chassis value T_in read is less than or equal to T3, export control signal B_low=1, B_high=0, fan is switched to low-speed running state by the state of running up.
Single-chip microcomputer described in a certain moment controls one of in the manner described above the running of described fan, in conjunction with described fan work temperature look-up table, there is provided following representative temperature condition value: when environment temperature is between-40 DEG C to 0 DEG C, described T1=23 DEG C, T2=27 DEG C, T3=28 DEG C, T4=30 DEG C; When environment temperature is 10 DEG C, described T1=24 DEG C, T2=28 DEG C, T3=29 DEG C, T4=31 DEG C; When environment temperature is 20 DEG C, described T1=25 DEG C, T2=29 DEG C, T3=30 DEG C, T4=32 DEG C; When environment temperature is 30 DEG C, described T1=32 DEG C, T2=35 DEG C, T3=36 DEG C, T4=38 DEG C; When environment temperature is 40 DEG C, described T1=37 DEG C, T2=38 DEG C, T3=39 DEG C, T4=41 DEG C.Temperature spot for other also controls in a similar fashion.Said fans working temperature question blank have employed preset value, and this is the standard reference value that can be applicable to most of cabinet stable operation obtained according to several times test.
In addition in order to ensure temperature control effect further, also fault detection mechanism is provided with in above-mentioned single-chip microcomputer, when breaking down, single-chip microcomputer exports fan and to run up control signal B_low=0, B_high=1, this fault detection mechanism is realized by fault detection module, concrete decision procedure is: the temperature value of one of two temperature sensors sensing departs from default normal range, or the temperature gap of two temperature sensor senses exceedes preset range, or the housing temperature ascending velocity of temperature sensor senses is too fast exceeds preset range or other job failure appears in temperature sensor, etc., fault detection module in this case in single-chip microcomputer exports fault-signal B_err=1 to fan control module, when fan control module receives the signal of B_err=1, control B_low=0, B_high=1 makes fan run up.
Preferably, be applied in the present invention
single-chip microcomputer STC89C516RD+(temperature control system control strategy sketch) as shown in Figure 3: comprise low-pass filter, fan control module and fault detection module, wherein temperature data T_in and T_exp of two temperature sensor inputs first carries out filtering through low-pass filter, prevent temperature sensor signal from causing jitter to cause the abnormal start-stop of fan owing to disturbing, temperature sensor data after filtering after process exports to fan control module and fault detection module respectively, and in fan control module, realize the temperature control strategy of above-mentioned key and export corresponding control signal B_low and B_high, and fault detection module carries out fault verification based on temperature data T_in and T_exp of temperature sensor senses, as whether this temperature value T_in or T_exp or its difference depart from default normal range, whether T_in ascending velocity is too fast etc., when compare with preset value break down time, it exports fault-signal B_err=1 to fan control module, direct control B_low=0 when fan control module receives this signal, B_high=1 makes fan run up, simultaneous faults detection module exports fault-signal B_err_In or B_err_Exp to the malfunction indicator lamp of single-chip microcomputer, control trouble light and carry out malfunction coefficient prompting.
embodiment 1
Below for the environment temperature T_exp=10 degree Celsius that cabinet external environment temperature sensor detects, be given by the embodiment that scheme of the present invention carries out housing temperature control.First contrast the fan work temperature look-up table shown in accompanying drawing 2, cabinet internal standard temperature value T1=24 DEG C obtaining closing fan running, cabinet internal standard temperature value T2=28 DEG C opening fan low-speed running, close cabinet internal standard temperature value T3=29 DEG C that fan runs up, open the cabinet internal standard temperature value T4=31 DEG C that fan runs up.Then when the temperature in chassis value T_in of housing temperature sensor sensing is more than 28 degree, single-chip microcomputer exports control signal B_low=1, B_high=0 controls fan and slowly runs, if when constant temperature rises to 31 degree, single-chip microcomputer exports control signal B_low=0, B_high=1 controls fan high-speed rotation, along with the decline of housing temperature, between 29-31 degree, fan continues to keep high-speed rotation (B_low=0, B_high=1), until when housing temperature drops to below 29 degree, single-chip microcomputer exports control signal B_low=1, B_high=0 controls fan and slowly runs from becoming at a high speed, then when sense housing temperature between 24-29 degree time, single-chip microcomputer keeps B_low=1, B_high=0, make fan still maintain before slowly run, after temperature in chassis is lower than 24 degree, single-chip microcomputer exports control signal B_low=0, B_high=0, make stopping fan rotation.
In order to can probe temperature control reach re-set target, as shown in Figure 4, carry out practical test further, carrying out emulating Tin in accompanying drawing 4 to control system is the cabinet inside temperature of sensor sensing, Texp is the environment temperature of sensing, low is fan low speed control bit, and high is fan High-speed Control position.Generally external temperature Texp is more stable, and in this test, environment temperature is at about 10 DEG C, which includes random noise signal.When cabinet inside temperature increases to over low speed unlatching limit value T2, two fans slowly run (B_low=1, B_high=0), when constant temperature increases to over high-speed rotation unlatching limit value T4, two fan high-speed rotation (B_low=0, B_high=1), in cabinet inside temperature decline process, when cabinet inside temperature closes limit value T3 lower than high speed fan, two fans slowly run (B_low=1, B_high=0), when cabinet inside temperature closes limit value T1 lower than low speed fan, two fans cut out (B_low=0, B_high=0).Test result fit like a glove expection temperature controlled processes.
Below be only that the preferred embodiment of the present invention is described; technical scheme of the present invention is not limited to this; the any known distortion that those skilled in the art do on the basis that major technique of the present invention is conceived all belongs to the claimed technology category of the present invention, and the concrete protection domain of the present invention is as the criterion with the record of claims.
Claims (10)
1. an intelligent machine box temperature control system, it is characterized in that, comprise single-chip microcomputer, temperature in chassis sensor, the outer temperature sensor of cabinet, fan and fan run driving circuit, the temperature value of two temperature sensor senses exports to single-chip microcomputer, described single-chip microcomputer comprises fan low-speed running control end and fan and to run up control end, be connected to fan and run driving circuit, described fan operation driving circuit SCM Based control signal control fan is in and runs up, low-speed running or the state that shuts down, the fan work temperature look-up table of standard is prestored in described single-chip microcomputer, under described fan work temperature look-up table provides various cabinet external environment temperature value, corresponding to the temperature in chassis value condition of the various running status of fan, specifically comprise fan and close operating temperature condition, fan low-speed running open temp condition, run up closing temperature condition and fan of fan runs up open temp condition.
2. intelligent machine box temperature control system according to claim 1, it is characterized in that, wherein said fan runs driving circuit and comprises divider resistance, voltage source V CC and four transistor, the fan low-speed running control end of described single-chip microcomputer is connected to the base stage of first crystal triode, the collector of first crystal triode is connected to voltage source V CC, the emitter of first crystal triode is connected to the base stage of the 3rd transistor, the collector of the 3rd transistor is connected to fan one end through divider resistance, the grounded emitter of the 3rd transistor, the other end of fan is connected to described voltage source V CC, the fan of the described single-chip microcomputer control end that runs up is connected to the base stage of the second transistor, the collector of the second transistor is connected to described voltage source V CC, the emitter of the second transistor is connected to the base stage of the 4th transistor, the collector of the 4th transistor is connected to one end of described fan, the grounded emitter of the 4th transistor.
3. intelligent machine box temperature control system according to claim 2, it is characterized in that, the base terminal of above-mentioned four transistors is all connected with resistance, and four transistors are NPN transistor, described first crystal triode and the second transistor are miniwatt transistor, the quantity of described fan is two, and parallel with one another being arranged in cabinet.
4. intelligent machine box temperature control system according to claim 1, it is characterized in that, also comprise charactron driving chip and charactron, described charactron driving chip is connected to the Temperature displaying state output end of single-chip microcomputer, described charactron is connected to charactron driving chip, for temperature in chassis and the cabinet external environment temperature of displays temperature sensor sensing.
5. intelligent machine box temperature control system according to claim 1, it is characterized in that, wherein when the temperature of described temperature sensor senses meets described fan low-speed running open temp condition, the fan low-speed running control end of described single-chip microcomputer exports high level signal, fan runs up control end output low level signal, when the temperature of described temperature sensor senses meet described fan run up open temp condition time, the fan of the described single-chip microcomputer control end that runs up exports high level signal, fan low-speed running control end output low level signal, when the temperature of described temperature sensor senses meet described fan run up closing temperature condition time, the fan low-speed running control end of described single-chip microcomputer exports high level signal, fan runs up control end output low level signal, when the temperature of described temperature sensor senses meets described fan closedown operating temperature condition, the fan low-speed running control end of described single-chip microcomputer and fan run up the equal output low level signal of control end.
6. the intelligent machine box temperature control system according to any one of claim 1-5, it is characterized in that, described single-chip microcomputer comprises low-pass filter, fan control module and fault detection module, described low-pass filter exports to fan control module and fault detection module after carrying out filtering process to the temperature data that temperature sensor inputs respectively, described fan control module generates based on temperature data and exports the control signal of fan running status, described fault detection module carries out fault verification based on temperature data, when it exports fault-signal to fan control module, fan control module generates and exports fan and to run up control signal.
7. the intelligent machine box temperature control system according to Claims 2 or 3, it is characterized in that, described temperature sensor model is DS18B20, described single-chip microcomputer model is STC89C516RD+, described first crystal triode and the second transistor are the miniwatt transistor of S9013 model, and described 3rd transistor and the 4th transistor are TIP122 transistor.
8. the intelligent control method of a housing temperature, it is characterized in that, described intelligent control method carries out based on the intelligent machine box temperature control system described in any one of claim 1-7, the fan work temperature look-up table of standard is prestored in the single-chip microcomputer that described intelligent machine box temperature control system comprises, under described fan work temperature look-up table provides various cabinet external environment temperature value, corresponding to the temperature in chassis value condition of fan desired operation, comprise fan and close operating temperature value condition, fan low-speed running open temp value condition, run up closing temperature value condition and fan of fan runs up open temp value condition, described intelligent control method comprises the following steps:
(1), the ambient temperature value T_exp of single-chip microcomputer reading machine box outside temperature sensor sensing, and in described fan work temperature look-up table, extracts the cabinet internal standard temperature value T1 closing fan running, the cabinet internal standard temperature value T2 opening fan low-speed running according to this ambient temperature value T_exp, close cabinet internal standard temperature value T3 that fan runs up and the cabinet internal standard temperature value T4 that unlatching fan runs up;
(2), the temperature in chassis value T_in of single-chip microcomputer reading machine the temperature inside the box sensor sensing, and based on this temperature in chassis value T_in with correspond to fan desired operation described relation between cabinet internal standard temperature value T1, T2, T3, T4 and control fan and be in low speed, high speed or run-stopping status.
9. the intelligent control method of housing temperature according to claim 8, it is characterized in that, wherein said pass between cabinet internal standard temperature value T1, T2, T3, T4 is T1<T2<T3<T4, and described step (2) is further comprising the steps:
A, when temperature in chassis value T_in is more than or equal to cabinet internal standard temperature value T2 and is less than cabinet internal standard temperature value T4, Single-chip Controlling fan low-speed running;
B, when temperature in chassis value T_in is less than or equal to cabinet internal standard temperature value T1, Single-chip Controlling fan shuts down;
C, when temperature in chassis value T_in is greater than cabinet internal standard temperature value T1 and is less than cabinet internal standard temperature value T2, the running status of the forefan of single-chip microcomputer maintenance;
D, when temperature in chassis value T_in is more than or equal to cabinet internal standard temperature value T4, Single-chip Controlling fan runs up, until when the temperature in chassis value T_in read is less than or equal to cabinet internal standard temperature value T3, Single-chip Controlling fan switches to low-speed running state by the state of running up.
10. the intelligent control method of housing temperature according to claim 8 or claim 9, it is characterized in that, also comprise failure detection steps, when the cabinet external environment temperature value T_exp that described temperature sensor detects or temperature in chassis value T_in occurs abnormal, Single-chip Controlling fan runs up.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111945387B (en) * | 2020-07-31 | 2023-12-05 | 重庆海尔滚筒洗衣机有限公司 | Driving module and washing machine |
| US11609109B2 (en) * | 2020-08-05 | 2023-03-21 | Mjnn Llc | Flow sensor for sensor network in controlled environment agriculture |
| CN113359965A (en) * | 2021-06-18 | 2021-09-07 | 浪潮电子信息产业股份有限公司 | Temperature adjusting method and related assembly |
| CN115013342A (en) * | 2022-05-26 | 2022-09-06 | 中航光电科技股份有限公司 | Redundancy-designed fan rotating speed control system and method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143153A (en) * | 1995-08-11 | 1997-02-19 | 三星电子株式会社 | Device for controlling automobile cooling fan |
| CN1577201A (en) * | 2003-07-28 | 2005-02-09 | 华为技术有限公司 | Fan rotating speed controlling method and apparatus |
| CN1635434A (en) * | 2004-02-12 | 2005-07-06 | 威盛电子股份有限公司 | Method and device for controlling temperature of microprocessor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK32990D0 (en) * | 1990-02-08 | 1990-02-08 | Esl Miljoe A S | REMOTE CONTROL DEVICE FOR TEMPERATURE CONTROL WITH SECURITY CIRCUIT |
| US20030100959A1 (en) * | 2001-11-28 | 2003-05-29 | Liu Hung Tsi | Computer temperature control system |
-
2013
- 2013-08-06 CN CN201310339528.7A patent/CN103488211B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143153A (en) * | 1995-08-11 | 1997-02-19 | 三星电子株式会社 | Device for controlling automobile cooling fan |
| CN1577201A (en) * | 2003-07-28 | 2005-02-09 | 华为技术有限公司 | Fan rotating speed controlling method and apparatus |
| CN1635434A (en) * | 2004-02-12 | 2005-07-06 | 威盛电子股份有限公司 | Method and device for controlling temperature of microprocessor |
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