CN104143813A - Method and system for controlling temperature of mobile terminal - Google Patents
Method and system for controlling temperature of mobile terminal Download PDFInfo
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- CN104143813A CN104143813A CN201410358119.6A CN201410358119A CN104143813A CN 104143813 A CN104143813 A CN 104143813A CN 201410358119 A CN201410358119 A CN 201410358119A CN 104143813 A CN104143813 A CN 104143813A
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Abstract
The invention discloses a method and system for controlling the temperature of a mobile terminal. The system comprises a temperature sensing module, a storage module, a first voltage-adjustable module, a second voltage-adjustable module, a setting module, a first comparison module, a second comparison module and a temperature detection module. By increasing or decreasing the voltage value of the first voltage-adjustable module and the voltage value of the second voltage-adjustable module in sequence, the current temperature of the mobile terminal ranges from a first temperature corresponding to a first adjustable voltage and a second temperature corresponding to a second adjustable voltage, so that the temperature of the mobile terminal is detected. Even if temperature detection software of the mobile terminal fails, the temperature of the mobile terminal can still be measured through hardware. Accordingly, harm caused by failure of temperature protection is avoided, and great convenience is brought to users.
Description
Technical field
The present invention relates to technical field of mobile terminals, in particular a kind of temperature-controlled process of mobile terminal and system.
Background technology
Along with the development of mobile terminal technology, the use of mobile terminal is more and more universal and function is also more and more, for example (,) mobile phone except the most basic make a phone call, send short messages, can also measure temperature etc.Because mobile terminal long-time use under high temperature or low temperature environment can make the irreversible damage of causing of mobile terminal, the security incident such as even blast, so mobile terminal all has temperature protection function.In the prior art, the temperature protection of mobile terminal detects to realize based on software timing, namely by software timing, obtains the temperature in mobile terminal use procedure, then judges whether the too high or too low corresponding response of making.
Refer to Fig. 1, Fig. 1 is the principle schematic that existing mobile terminal is measured temperature.One thermistor Rthm is set on mobile terminal, and thermistor Rthm one end connects the fixed voltage end Vref of mobile terminal, and the other end is by contact resistance R1 ground connection.Central processing unit detects the voltage V1 of the node between thermistor Rthm and resistance R 1 by timing, and according to the temperature of thermistor Rthm and voltage relationship, just can obtain the current temperature value of mobile terminal; And the temperature protection sequential monitoring temperature of central processing unit inside is made corresponding response when too high or too low for temperature, for example excess Temperature shutdown.Though this scheme is fairly simple directly perceived, if after temperature detection software goes wrong, after the temperature protection program of central processing unit inside goes wrong, mobile terminal will lose temperature protection function, abnormally dangerous for mobile terminal and user.Existing mobile terminal temperature checking method stability and fail safe are not high, after temperature detection software goes wrong, easily lose temperature protection function, to user, bring danger.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of temperature-controlled process and system of mobile terminal is provided, and is intended to solve that the fail safe of existing mobile terminal temperature checking method is not high to user, brings dangerous problem.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A temperature control system for mobile terminal, wherein, comprising:
Temperature sense module, for responding to the temperature of mobile terminal and being converted to corresponding voltage;
Memory module, for the mapping table of temperature and the described temperature sense module corresponding voltage of pre-stored mobile terminal;
The first voltage adjustable module, for providing the first adjustable voltage;
Second voltage adjustable module, for providing the second adjustable voltage;
Module is set, for described the first adjustable voltage and the second adjustable voltage are set according to described mapping table, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, described the first temperature is higher than the second temperature;
The first comparison module, for voltage and the described first adjustable voltage size of more described temperature sense module;
The second comparison module, for voltage and the described second adjustable voltage size of more described temperature sense module;
Temperature detecting module, for when the voltage of described temperature sense module is greater than described the first adjustable voltage, notify the described magnitude of voltage that module regulates described the first voltage adjustable module and second voltage adjustable module that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module of detection is greater than described the first adjustable voltage, until when the voltage of described temperature sense module being detected and being less than the first adjustable voltage that described the first voltage adjustable module provides,
When the voltage of described temperature sense module is less than described the second adjustable voltage, notify the described magnitude of voltage that module regulates described the first voltage adjustable module and second voltage adjustable module that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module of detection is less than described the second adjustable voltage, until when the voltage of described temperature sense module being detected and being greater than the second adjustable voltage that described second voltage adjustable module provides,
When the voltage of described temperature sense module is less than described the first adjustable voltage and is greater than described the second adjustable voltage, the temperature of described mobile terminal is between the first temperature and the second temperature.
The temperature control system of described mobile terminal, wherein, described temperature sense module comprises: thermistor and the first resistance; One end of described thermistor is connected and fixed voltage end, and the other end is by the first grounding through resistance; The other end of described thermistor also connects respectively the first comparison module and the second comparison module.
The temperature control system of described mobile terminal, wherein, described the first voltage adjustable module comprises: the first variable resistor and the second resistance; Described first variable-resistance the first stiff end is connected and fixed voltage end; Described the first variable-resistance movable end connects the described module that arranges; Described first variable-resistance the second stiff end connects described the first comparison module, also by the second grounding through resistance;
Described second voltage adjustable module comprises: the second adjustable resistance and the 3rd resistance; The first stiff end of described the second adjustable resistance is connected and fixed voltage end; The movable end of described the second adjustable resistance connects the described module that arranges; The second stiff end of described the second adjustable resistance connects described the second comparison module, also by the 3rd grounding through resistance.
The temperature control system of described mobile terminal, wherein, described the first comparison module comprises: the first comparator; The first input end of described the first comparator connects described temperature sense module, and the second input of described the first comparator connects described the first voltage adjustable module, and the output of described the first comparator connects temperature detecting module;
Described the second comparison module comprises: the second comparator; The first input end of described the second comparator connects described second voltage adjustable module, and the second input of described the second comparator connects described temperature sense module, and the output of described the second comparator connects temperature detecting module.
The temperature control system of described mobile terminal, wherein, described the first temperature is higher 2 degrees Celsius than the second temperature; Described predetermined temperature is 1 degree Celsius.
The temperature control system of described mobile terminal, wherein, also comprises: initial temperature acquisition module, the temperature while starting for obtaining mobile terminal; Described temperature sense module, initial temperature acquisition module and module is set is connected successively.
The temperature control system of described mobile terminal, wherein, described thermistor is negative tempperature coefficient thermistor or semistor.
Adopt a temperature-controlled process for the temperature control system of above-mentioned mobile terminal, wherein, comprise the following steps:
A, according to the mapping table of the temperature of mobile terminal and voltage, the first adjustable voltage of described the first voltage adjustable module and the second adjustable voltage of second voltage adjustable module are set, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, described the first temperature is higher than the second temperature;
B, temperature sense module induction mobile terminal Current Temperatures are also converted to corresponding voltage;
C, by the first comparison module and the second comparison module, judge respectively voltage that described mobile terminal Current Temperatures is corresponding and the size of the first adjustable voltage and the second adjustable voltage; When described voltage is greater than described the first adjustable voltage, enter step D; When described voltage is less than described the second adjustable voltage, enter step e; When being less than described the first adjustable voltage and being greater than described the second adjustable voltage, described voltage enters step F;
D, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively in described mapping table, and returns to step C;
E, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively in described mapping table, and returns to step C;
F, the temperature of described mobile terminal between the first temperature and the second temperature.
The temperature-controlled process of described mobile terminal, wherein, described steps A specifically comprises:
A1, when mobile terminal starts, temperature when temperature sense module induction mobile terminal starts is also converted to corresponding voltage;
A2, according to the mapping table of the voltage of described mobile terminal and temperature, draw temperature when mobile terminal starts;
A3, corresponding magnitude of voltage while searching the high predetermined temperature of temperature while starting than described mobile terminal in described mapping table, and be set to the first adjustable voltage of described the first voltage adjustable module; Corresponding magnitude of voltage while searching the low predetermined temperature of temperature while starting than described mobile terminal in described mapping table, and be set to the second adjustable voltage of described second voltage adjustable module.
The temperature-controlled process of described mobile terminal, wherein, described the first temperature is higher 2 degrees Celsius than the second temperature; Described predetermined temperature is 1 degree Celsius.
The temperature-controlled process of a kind of mobile terminal provided by the present invention and system, effectively solved that the fail safe after temperature detection program goes wrong of existing mobile terminal temperature checking method is not high brings dangerous problem to user, by temperature sense module induction mobile terminal Current Temperatures and be converted to corresponding voltage; By the first comparison module and the second comparison module, judge respectively voltage that described mobile terminal Current Temperatures is corresponding and the size of the first adjustable voltage and the second adjustable voltage; When described voltage is greater than described the first adjustable voltage, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively at every turn in described mapping table, whether the voltage that continue to detect described temperature sense module is greater than described the first adjustable voltage, until described voltage is while being less than described the first adjustable voltage; When described voltage is less than described the second adjustable voltage, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively at every turn in described mapping table, whether the voltage that continue to detect described temperature sense module is less than described the second adjustable voltage, until described voltage is while being greater than described two adjustable voltage; When described voltage is less than described the first adjustable voltage and is greater than described the second adjustable voltage, the temperature of described mobile terminal is between the first temperature and the second temperature; By the magnitude of voltage of continuous adjusting the first adjustable voltage and the second adjustable voltage; the Current Temperatures that makes mobile terminal is between the first adjustable voltage and corresponding the first temperature and the second temperature of the second adjustable voltage; thereby realized the detection to mobile terminal temperature; even in the situation that the temperature detection software of mobile terminal goes wrong; still can pass through the temperature of hard ware measure mobile terminal; thereby the harm of having avoided temperature protection to lose efficacy and bring, it is convenient greatly to user, to have brought.
Accompanying drawing explanation
Fig. 1 is that Fig. 1 is the principle schematic that existing mobile terminal is measured temperature.
Fig. 2 is the schematic diagram of the temperature control system preferred embodiment of mobile terminal provided by the invention.
Fig. 3 is the flow chart of the temperature-controlled process preferred embodiment of mobile terminal provided by the invention.
Embodiment
The invention provides a kind of temperature-controlled process and system of mobile terminal, for making object of the present invention, technical scheme and advantage clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, the schematic diagram of the temperature control system preferred embodiment that Fig. 1 is mobile terminal provided by the invention, as shown in the figure, the temperature control system of described mobile terminal comprises:
Temperature sense module 110, for responding to the temperature of mobile terminal and being converted to corresponding voltage;
Memory module 120, for the mapping table of temperature and described temperature sense module 110 corresponding voltage of pre-stored mobile terminal;
The first voltage adjustable module 130, for providing the first adjustable voltage;
Second voltage adjustable module 140, for providing the second adjustable voltage;
Module 150 is set, for described the first adjustable voltage and the second adjustable voltage are set according to described mapping table, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, described the first temperature is higher than the second temperature;
The first comparison module 160, for voltage and the described first adjustable voltage size of more described temperature sense module 110;
The second comparison module 170, for voltage and the described second adjustable voltage size of more described temperature sense module 110;
Temperature detecting module 180, for when the voltage of described temperature sense module 110 is greater than described the first adjustable voltage, the temperature of described mobile terminal is higher than described the first temperature, notify the described magnitude of voltage that module 150 regulates described the first voltage adjustable module 130 and second voltage adjustable module 140 that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module 110 of detection is greater than described the first adjustable voltage, until the voltage of described temperature sense module 110 is while being less than the first adjustable voltage that described the first voltage adjustable module 130 provides,
When the voltage of described temperature sense module 110 is less than described the second adjustable voltage, the temperature of described mobile terminal is lower than described the second temperature, notify the described magnitude of voltage that module 150 arranges described the first voltage adjustable module 130 and second voltage adjustable module 140 that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module 110 of detection is less than described the second adjustable voltage, until the voltage of described temperature sense module 110 is while being greater than the second adjustable voltage that described second voltage adjustable module 140 provides,
When the voltage of described temperature sense module 110 is less than described the first adjustable voltage and is greater than described the second adjustable voltage, the temperature of described mobile terminal is between the first temperature and the second temperature.
Specifically, described temperature sense module 110 one end connect the fixed voltage end Vref of mobile terminal, and the other end is connected temperature detecting module 180 by the first comparison module 160 with the second comparison module 170 respectively.Described memory module 120 connects the described module 150 that arranges.Described the first voltage adjustable module 130 and second voltage adjustable module 140 are connected respectively the fixed voltage end Vref of mobile terminal.The described module 150 that arranges connects the first comparison module 160 by the first voltage adjustable module 130, and the described module 150 that arranges connects the second comparison module 170 by second voltage adjustable module 140.Described temperature detecting module 180 connections arrange module 150.
Specifically, the temperature of described temperature sense module 110 induction mobile terminals is also converted to corresponding voltage, for example by thermistor, come temperature sensor to change, thereby show as the magnitude of voltage that varies with temperature and change, when practical application, thermistor supplier can provide the resistance value Rthm of this thermistor and the relation of temperature, according to described relation, just can draw mobile terminal corresponding magnitude of voltage in temperature sense module 110 when the different temperatures, thereby draw corresponding relation table and be kept in described memory module 120.When practical application, described thermistor can be negative tempperature coefficient thermistor, with temperature, increases, and resistance reduces, and can be also semistor, along with temperature increases resistance, also increases.Certainly, electronic component that also can adopt other etc. is realized object of the present invention, does not describe in detail herein.
Module 150 is set according to the mapping table of the voltage in the temperature of described mobile terminal and temperature sense module 110, the voltage that the first voltage adjustable module 130 is set is the first adjustable voltage, and the voltage that second voltage adjustable module 140 is set is the second adjustable voltage.Wherein, because described mapping table is known, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, and described the first temperature is higher than the second temperature.Owing to adopting negative tempperature coefficient thermistor, the voltage swing in temperature sense module 110 is along with temperature raises and raises.Also can adopt semistor herein, correspondingly, the voltage swing in temperature sense module 110 is along with temperature raises and reduced.
The first comparison module 160 and the second comparison module 170 contrast the first adjustable voltage and the second adjustable voltage voltage corresponding with the mobile terminal Current Temperatures sensing in temperature sense module 110 for correspondence.Temperature detecting module 180 detects the comparative result of the first comparison module 160 and the second comparison module 170, so, has three kinds of situations.
The first situation is, the voltage of described temperature sense module 110 is greater than described the first adjustable voltage, so obviously be also greater than the second adjustable voltage, illustrate that the temperature of described mobile terminal is higher than the first temperature, now, mobile terminal the just voltage on adjustable the first voltage adjustable module 130 and second voltage adjustable module 140 of module 150 is set, make the first adjustable voltage and temperature value corresponding to the second adjustable voltage after adjusting increase predetermined temperature on original basis.That is to say, in described mapping table, search the first temperature and the second temperature while increasing predetermined temperature respectively corresponding magnitude of voltage correspondence be set to the first adjustable voltage and the second adjustable voltage.Then continue to contrast by the first comparison module 160 and the second module 170, whether the voltage that namely continue to detect described temperature sense module 110 is greater than in described mapping table the first temperature increases the first corresponding adjustable voltage after predetermined temperature, until the mobile terminal current voltage that described temperature sense module 110 senses is while being less than the first adjustable voltage that described the first voltage adjustable module 130 provides.So now, between the second temperature that the Current Temperatures of mobile terminal the first temperature that the first adjustable voltage is corresponding at this moment and the second adjustable voltage are corresponding.
The second situation is, the voltage of described temperature sense module 110 is less than described the second adjustable voltage, so obviously be also less than the first adjustable voltage, illustrate that the temperature of described mobile terminal is lower than the second temperature, now, mobile terminal the just voltage on adjustable the first voltage adjustable module 130 and second voltage adjustable module 140 of module 150 is set, make the first adjustable voltage and temperature value corresponding to the second adjustable voltage after adjusting reduce predetermined temperature on original basis.That is to say, in described mapping table, search the first temperature and the second temperature while reducing predetermined temperature respectively corresponding magnitude of voltage correspondence be set to the first adjustable voltage and the second adjustable voltage.Then continue to contrast by the first comparison module 160 and the second module 170, whether the voltage that namely continue to detect described temperature sense module 110 is less than described the second adjustable voltage, until the mobile terminal current voltage that described temperature sense module 110 senses is while being greater than the second adjustable voltage that described second voltage adjustable module 140 provides.So now, between the second temperature that the Current Temperatures of mobile terminal the first temperature that the first adjustable voltage is corresponding at this moment and the second adjustable voltage are corresponding.
The third situation is, the voltage of described temperature sense module 110 is greater than described the second adjustable voltage and is less than described the first adjustable voltage, and so now the Current Temperatures of mobile terminal is between the first temperature and the second temperature.
When practical application, described the first temperature is higher 2 degrees Celsius than the second temperature; Described predetermined temperature is 1 degree Celsius.Illustrate as follows: if the current temperature of mobile terminal is 30 degrees Celsius, and the first temperature is 20 ℃, and the second temperature is 18 ℃.While comparing for the first time, just 30 ℃ of the temperature of known mobile terminal are higher than 20 ℃ of the first temperature, so 18 ℃ of 20 ℃ of the first temperature and the second temperature are increased respectively to 1 ℃ of predetermined temperature, that is to say that it is 21 ℃ of corresponding magnitudes of voltage in described mapping table that the magnitude of voltage that module 150 arranges the first adjustable voltage of the first voltage adjustable module 130 correspondences is set, corresponding the second adjustable voltage is set to 19 ℃ of corresponding magnitudes of voltage in described mapping table.Proceed comparison, find 30 ℃ or higher than 21 ℃ of the first temperature corresponding to the first adjustable voltage now, continue so to increase by 1 ℃ of predetermined temperature, until 30 ℃ while being less than 31 ℃ for extremely, due to each, increase by 1 ℃, and the temperature range of the first comparison module 160 and the second comparison module 170 is 2 ℃, finally can repeat to be limited to 30 ℃ of current temperature of mobile terminal is that 31 ℃ and the second temperature are in the scope between 29 ℃ in the first temperature.Because the value of the first temperature and the second temperature is to increase by 1 ℃ of predetermined temperature at every turn, mobile terminal is known both temperature value just, because mobile terminal Current Temperatures is within the scope of this, and is integer, and the current temperature value of mobile terminal must be 30 ℃ so.In like manner, if the current temperature of mobile terminal is less than the second temperature, so can reduces the first temperature and the second temperature predetermined temperature at every turn, thereby approach mobile terminal Current Temperatures.If just the current temperature of mobile terminal is greater than the second temperature and is less than the first temperature, just can directly draw the temperature that mobile terminal is current.
Like this, the temperature range that the present invention forms by the first comparison module and the second comparison module little by little increases, thereby with the contrast of mobile terminal Current Temperatures, until mobile terminal Current Temperatures is drawn in which temperature range, and then draw the temperature that mobile terminal is current.The approach method that the present invention adopts, while having avoided the temperature detection software of mobile terminal to go wrong, the harm of bringing to user and mobile terminal, even still can pass through the temperature of hard ware measure mobile terminal in the situation that of thermometric software failure, improved fail safe and stability, it is convenient greatly to user, to have brought.
Please continue to refer to Fig. 2, when practical application, described temperature sense module 110 is similar to the schematic diagram shown in Fig. 1, comprises thermistor Rthm and the first resistance R 1; One end of described thermistor Rthm is connected and fixed voltage end Vref, and the other end is by the first resistance R 1 ground connection; The other end of described thermistor Rthm also connects respectively the first comparison module 160 and the second comparison module 170.
Further, described the first voltage adjustable module 130 is identical with the structure of described second voltage adjustable module 140.Described the first voltage adjustable module 130 comprises: the first variable resistor Ra and the second resistance R 2; The first stiff end of described the first variable resistor Ra is connected and fixed voltage end Vref; The movable end of described the first variable resistor Ra connects the described module 150 that arranges; The second stiff end of described the first variable resistor Ra connects described the first comparison module 160, also by the second resistance R 2 ground connection.
Described second voltage adjustable module 140 comprises: the second adjustable resistance Rb and the 3rd resistance R 3; The first stiff end of described the second adjustable resistance Rb is connected and fixed voltage end Vref; The movable end of described the second adjustable resistance Rb connects the described module 150 that arranges; The second stiff end of described the second adjustable resistance Rb connects described the second comparison module 170, also by the 3rd resistance R 3 ground connection.
Described the first comparison module 160 comprises: the first comparator; The first input end IN1 of described the first comparator connects described temperature sense module 110, and the second input IN2 of described the first comparator connects described the first voltage adjustable module 160, and the output OUT of described the first comparator connects temperature detecting module 180.
Described the second comparison module 170 comprises: the second comparator; The first input end IN1 of described the second comparator connects described second voltage adjustable module 140, and the second input IN2 of described the second comparator connects described temperature sense module 110, and the output OUT of described the second comparator connects temperature detecting module 180.
Described the first comparator is identical with the second comparator, includes two input pin IN1, IN2, an output pin OUT; When IN1 pin voltage is during higher than IN2 pin voltage, OUT pin will become high level, otherwise OUT pin is low level.When practical application, the second input IN2 of the first input end IN1 of described the first comparator and the second comparator is all connected the node of described thermistor Rthm and the first resistance R 1, and the voltage at this node place is V1.The second input IN2 of described the first comparator connects the node of the first variable resistor Ra and the second resistance R 2, and the voltage at this node place is V2.The first input end IN1 of described the second comparator connects the node of the second adjustable resistance Rb and the 3rd resistance R 3, and the voltage at this node place is V3.The mapping table of corresponding voltage in the temperature of mobile terminal and described temperature sense module 110 in the present invention, refer to the temperature of mobile terminal and the mapping table of voltage V1, this is to learn according to the magnitude of voltage of the parameter of thermistor Rthm and the first resistance R 1 resistance and fixed voltage end Vref, does not describe in detail herein.
Further, the temperature control system of described mobile terminal, also comprises: initial temperature acquisition module 190, the temperature while starting for obtaining mobile terminal; Described temperature sense module 110, initial temperature acquisition module 190 and module 150 is set is connected successively.
With a concrete Application Example, the present invention is described in detail below.
When practical application, the mapping table of storing temperature, voltage V1 in mobile terminal.Be specially, shown in Fig. 2,
, the resistance value Rthm of this thermistor providing according to thermistor supplier and the relation of temperature, just can obtain the value of voltage V1 under different temperatures.Because thermistor Rthm is negative temperature coefficient, therefore temperature is higher, V1 is larger.In the present embodiment, in mobile terminal, store the voltage V1 value that each integer temperature value is corresponding, record namely ... ,-10 ,-9 ,-8 ... ,-1,0,1 ..., 8,9,10 ..., 50,51,52 ... under different temperatures, the value of corresponding voltage V1.Below with V
tthe magnitude of voltage of voltage V1 in mapping table when expression temperature is T.
When mobile terminal-opening starts, obtain the current voltage V1 of mobile terminal; And according to being stored in the temperature in mobile terminal, the mapping table of voltage V1, the temperature T 0 of mobile terminal while obtaining starting shooting.According to T0, by being set, module adjustment variable resistor Ra, Rb make V2=V
t0+1(be temperature while being T0+1 ℃ corresponding magnitude of voltage), makes V3=V
t0-1(being the magnitude of voltage of temperature while being TO-1 ℃), realizes from circuit, makes exactly
,
even if corresponding variation occurs the resistance in variable resistor place in circuit, thereby make node place voltage that corresponding variation occur, be not described further herein.
When the output pin OUT that receives the first comparator when temperature detecting module 180 is high level, above-mentioned the first situation namely, illustrate that the temperature of mobile terminal is higher than T0+1, make T0=T0+1, the first temperature and the second temperature all increase by 1 ℃ of predetermined temperature, by module controls is set, adjust variable resistor Ra and Rb, make V2=V
t0+1, V3=V
t0-1, the variable-resistance resistance of corresponding adjusting just can realize,
,
.Then continue to detect the output pin OUT of the first comparator for whether being high level, if yes, increase predetermined temperature and continue detection, until the output pin OUT of the first comparator is while being low level.
When the output pin OUT that receives the second comparator when temperature detecting module 180 is high level, namely the second situation, illustrates that the temperature of mobile terminal is lower than T0-1, make T0=T0-1, reduce 1 ℃ of predetermined temperature, by module controls is set, adjust variable resistor Ra and Rb, make V2=V
t0+1, make V3=V
t0-1,
,
.Then continue to detect the output pin OUT of the second comparator for whether being high level, if yes, reduce predetermined temperature and continue detection, until the output pin OUT of the second comparator is while being low level.
When if the output pin OUT of the output pin OUT of the first comparator and the second comparator is low level, illustrate that mobile terminal Current Temperatures is just in the first temperature and the second temperature range.
It should be noted that, in mobile terminal, be provided with spendable temperature range, a high temperature, a low temperature, when cycle criterion, judges whether certain first temperature surpasses default high temperature, surpasses mobile terminal and carries out default high-temperature process, such as high temperature shutdown.In like manner, certain second temperature is during lower than default low temperature, and mobile terminal carries out default K cryogenic treatment, such as low temperature shutdown.
Temperature control system based on above-mentioned mobile terminal, the present invention also provides a kind of temperature-controlled process of mobile terminal, and as shown in Figure 3, described method comprises:
S100, according to the mapping table of the temperature of mobile terminal and voltage, the first adjustable voltage of described the first voltage adjustable module and the second adjustable voltage of second voltage adjustable module are set, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, described the first temperature is higher than the second temperature;
S200, temperature sense module induction mobile terminal Current Temperatures are also converted to corresponding voltage;
S300, by the first comparison module and the second comparison module, judge respectively voltage that described mobile terminal Current Temperatures is corresponding and the size of the first adjustable voltage and the second adjustable voltage; When described voltage is greater than described the first adjustable voltage, enter step S400; When described voltage is less than described the second adjustable voltage, enter step S500; When being less than described the first adjustable voltage and being greater than described the second adjustable voltage, described voltage enters step S600;
S400, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively in described mapping table, and returns to step S300;
S500, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively in described mapping table, and returns to step S300;
S600, the temperature of described mobile terminal between the first temperature and the second temperature.
Wherein step S300 comprises two judgements, the one, by the first comparison module, judge whether the voltage that described mobile terminal Current Temperatures is corresponding is greater than the first adjustable voltage, the 2nd, by the second comparison module, judge whether the voltage that described mobile terminal Current Temperatures is corresponding is less than the second adjustable voltage.
Further, described step S100 specifically comprises:
S110, when mobile terminal starts, temperature when temperature sense module induction mobile terminal starts is also converted to corresponding voltage;
S120, according to the mapping table of the voltage of described mobile terminal and temperature, draw temperature when mobile terminal starts;
S130, corresponding magnitude of voltage while searching the high predetermined temperature of temperature while starting than described mobile terminal in described mapping table, and be set to the first adjustable voltage of described the first voltage adjustable module; Corresponding magnitude of voltage while searching the low predetermined temperature of temperature while starting than described mobile terminal in described mapping table, and be set to the second adjustable voltage of described second voltage adjustable module.
Further, described the first temperature is higher 2 degrees Celsius than the second temperature; Described predetermined temperature is 1 degree Celsius.
In sum, the temperature-controlled process of a kind of mobile terminal provided by the invention and system, comprise temperature sense module, for responding to the temperature of mobile terminal and being converted to corresponding voltage, memory module, for the mapping table of temperature and the described temperature sense module corresponding voltage of pre-stored mobile terminal, the first voltage adjustable module, for providing the first adjustable voltage, second voltage adjustable module, for providing the second adjustable voltage, module is set, for described the first adjustable voltage and the second adjustable voltage are set according to described mapping table, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, described the first temperature is higher than the second temperature, the first comparison module, for voltage and the described first adjustable voltage size of more described temperature sense module, the second comparison module, for voltage and the described second adjustable voltage size of more described temperature sense module, temperature detecting module, for when the voltage of described temperature sense module is greater than described the first adjustable voltage, notify the described magnitude of voltage that module regulates described the first voltage adjustable module and second voltage adjustable module that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module of detection is greater than described the first adjustable voltage, until when the voltage of described temperature sense module being detected and being less than the first adjustable voltage that described the first voltage adjustable module provides, when the voltage of described temperature sense module is less than described the second adjustable voltage, notify the described magnitude of voltage that module regulates described the first voltage adjustable module and second voltage adjustable module that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module of detection is less than described the second adjustable voltage, until when the voltage of described temperature sense module being detected and being greater than the second adjustable voltage that described second voltage adjustable module provides, when the voltage of described temperature sense module is less than described the first adjustable voltage and is greater than described the second adjustable voltage, the temperature of described mobile terminal is between the first temperature and the second temperature,
When the voltage of described temperature sense module is greater than described the first adjustable voltage, by constantly heightening the magnitude of voltage of the first adjustable voltage and the second adjustable voltage, the Current Temperatures that makes mobile terminal is between the first adjustable voltage and corresponding the first temperature and the second temperature of the second adjustable voltage; When the voltage of described temperature sense module is less than described the second adjustable voltage, by constantly turning down the magnitude of voltage of the first adjustable voltage and the second adjustable voltage, the Current Temperatures that makes mobile terminal is between the first adjustable voltage and corresponding the first temperature and the second temperature of the second adjustable voltage; When the voltage of described temperature sense module is less than described the first adjustable voltage and is greater than described the second adjustable voltage, the temperature of described mobile terminal is between the first temperature and the second temperature; By heightening successively or turn down successively the magnitude of voltage of the first adjustable voltage and the second adjustable voltage; the Current Temperatures that makes mobile terminal is between the first adjustable voltage and corresponding the first temperature and the second temperature of the second adjustable voltage; thereby realized the detection to mobile terminal temperature; even in the situation that the temperature detection software of mobile terminal goes wrong; still can pass through the temperature of hard ware measure mobile terminal; thereby the harm of having avoided temperature protection to lose efficacy and bring, it is convenient greatly to user, to have brought.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. a temperature control system for mobile terminal, is characterized in that, comprising:
Temperature sense module, for responding to the temperature of mobile terminal and being converted to corresponding voltage;
Memory module, for the mapping table of temperature and the described temperature sense module corresponding voltage of pre-stored mobile terminal;
The first voltage adjustable module, for providing the first adjustable voltage;
Second voltage adjustable module, for providing the second adjustable voltage;
Module is set, for described the first adjustable voltage and the second adjustable voltage are set according to described mapping table, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, described the first temperature is higher than the second temperature;
The first comparison module, for voltage and the described first adjustable voltage size of more described temperature sense module;
The second comparison module, for voltage and the described second adjustable voltage size of more described temperature sense module;
Temperature detecting module, for when the voltage of described temperature sense module is greater than described the first adjustable voltage, notify the described magnitude of voltage that module regulates described the first voltage adjustable module and second voltage adjustable module that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module of detection is greater than described the first adjustable voltage, until when the voltage of described temperature sense module being detected and being less than the first adjustable voltage that described the first voltage adjustable module provides,
When the voltage of described temperature sense module is less than described the second adjustable voltage, notify the described magnitude of voltage that module regulates described the first voltage adjustable module and second voltage adjustable module that arranges, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively at every turn in described mapping table, whether the voltage that continues the described temperature sense module of detection is less than described the second adjustable voltage, until when the voltage of described temperature sense module being detected and being greater than the second adjustable voltage that described second voltage adjustable module provides,
When the voltage of described temperature sense module is less than described the first adjustable voltage and is greater than described the second adjustable voltage, the temperature of described mobile terminal is between the first temperature and the second temperature.
2. the temperature control system of mobile terminal according to claim 1, is characterized in that, described temperature sense module comprises: thermistor and the first resistance; One end of described thermistor is connected and fixed voltage end, and the other end is by the first grounding through resistance; The other end of described thermistor also connects respectively the first comparison module and the second comparison module.
3. the temperature control system of mobile terminal according to claim 1, is characterized in that, described the first voltage adjustable module comprises: the first variable resistor and the second resistance; Described first variable-resistance the first stiff end is connected and fixed voltage end; Described the first variable-resistance movable end connects the described module that arranges; Described first variable-resistance the second stiff end connects described the first comparison module, also by the second grounding through resistance;
Described second voltage adjustable module comprises: the second adjustable resistance and the 3rd resistance; The first stiff end of described the second adjustable resistance is connected and fixed voltage end; The movable end of described the second adjustable resistance connects the described module that arranges; The second stiff end of described the second adjustable resistance connects described the second comparison module, also by the 3rd grounding through resistance.
4. the temperature control system of mobile terminal according to claim 1, is characterized in that, described the first comparison module comprises: the first comparator; The first input end of described the first comparator connects described temperature sense module, and the second input of described the first comparator connects described the first voltage adjustable module, and the output of described the first comparator connects temperature detecting module;
Described the second comparison module comprises: the second comparator; The first input end of described the second comparator connects described second voltage adjustable module, and the second input of described the second comparator connects described temperature sense module, and the output of described the second comparator connects temperature detecting module.
5. the temperature control system of mobile terminal according to claim 1, is characterized in that, described the first temperature is higher 2 degrees Celsius than the second temperature; Described predetermined temperature is 1 degree Celsius.
6. the temperature control system of mobile terminal according to claim 1, is characterized in that, also comprises: initial temperature acquisition module, the temperature while starting for obtaining mobile terminal; Described temperature sense module, initial temperature acquisition module and module is set is connected successively.
7. the temperature control system of mobile terminal according to claim 1, is characterized in that, described thermistor is negative tempperature coefficient thermistor or semistor.
8. adopt a temperature-controlled process for the temperature control system of mobile terminal as claimed in claim 1, it is characterized in that, comprise the following steps:
A, according to the mapping table of the temperature of mobile terminal and voltage, the first adjustable voltage of described the first voltage adjustable module and the second adjustable voltage of second voltage adjustable module are set, corresponding the first temperature of described the first adjustable voltage, corresponding the second temperature of described the second adjustable voltage, described the first temperature is higher than the second temperature;
B, temperature sense module induction mobile terminal Current Temperatures are also converted to corresponding voltage;
C, by the first comparison module and the second comparison module, judge respectively voltage that described mobile terminal Current Temperatures is corresponding and the size of the first adjustable voltage and the second adjustable voltage; When described voltage is greater than described the first adjustable voltage, enter step D; When described voltage is less than described the second adjustable voltage, enter step e; When being less than described the first adjustable voltage and being greater than described the second adjustable voltage, described voltage enters step F;
D, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature increase predetermined temperature respectively in described mapping table, and returns to step C;
E, regulate respectively the voltage of described the first voltage adjustable module and second voltage adjustable module, the magnitude of voltage that makes the first adjustable voltage and the second adjustable voltage is magnitude of voltage corresponding when the first temperature and the second temperature reduce predetermined temperature respectively in described mapping table, and returns to step C;
F, the temperature of described mobile terminal between the first temperature and the second temperature.
9. the temperature-controlled process of mobile terminal according to claim 8, is characterized in that, described steps A specifically comprises:
A1, when mobile terminal starts, temperature when temperature sense module induction mobile terminal starts is also converted to corresponding voltage;
A2, according to the mapping table of the voltage of described mobile terminal and temperature, draw temperature when mobile terminal starts;
A3, corresponding magnitude of voltage while searching the high predetermined temperature of temperature while starting than described mobile terminal in described mapping table, and be set to the first adjustable voltage of described the first voltage adjustable module; Corresponding magnitude of voltage while searching the low predetermined temperature of temperature while starting than described mobile terminal in described mapping table, and be set to the second adjustable voltage of described second voltage adjustable module.
10. the temperature-controlled process of mobile terminal according to claim 8, is characterized in that, described the first temperature is higher 2 degrees Celsius than the second temperature; Described predetermined temperature is 1 degree Celsius.
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| CN201410358119.6A CN104143813B (en) | 2014-07-25 | 2014-07-25 | The temprature control method and system of a kind of mobile terminal |
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| CN201410358119.6A CN104143813B (en) | 2014-07-25 | 2014-07-25 | The temprature control method and system of a kind of mobile terminal |
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| CN104143813B (en) | 2017-06-06 |
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Denomination of invention: A Temperature Control Method and System for Mobile Terminals Effective date of registration: 20230324 Granted publication date: 20170606 Pledgee: Shandong Weihai Rural Commercial Bank Co.,Ltd. torch high tech Industrial Development Zone sub branch Pledgor: Weihai aegis Intelligent Technology Co.,Ltd. Registration number: Y2023980035874 |
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Denomination of invention: A temperature control method and system for mobile terminals Granted publication date: 20170606 Pledgee: Shandong Weihai Rural Commercial Bank Co.,Ltd. torch high tech Industrial Development Zone sub branch Pledgor: Weihai aegis Intelligent Technology Co.,Ltd. Registration number: Y2024980008970 |