1960 results about "Thermal threshold" patented technology

The present invention provides apparatus and methods to perform thermal management in a computing environment. In one embodiment, thermal attributes are associated with operations and / or processing components, and the operations are scheduled for processing by the components so that a thermal threshold is not exceeded. In another embodiment, hot and cool queues are provided for selected operations, and the processing components can select operations from the appropriate queue so that the thermal threshold is not exceeded.

The present invention provides apparatus and methods to perform thermal management in a computing environment. Thermal attributes are associated with operations and / or processing components. The components have thermal thresholds that should not be exceeded. In a preferred embodiment, an operation can be transferred from one component to another component if the thermal threshold is exceeded during execution by the first component.

A method for improving thermal efficiency in one or more data centers includes measuring a temperature at one or more computing devices having allocated thereto one or more computing workloads and determining whether the measured temperature exceeds a predetermined temperature threshold. If the predetermined temperature threshold is exceeded, sufficient computing workloads are migrated to one or more alternate computing devices to reduce the temperature at one or more of the computing devices to less than or equal to said predetermined temperature threshold. In accomplishing the method, there is provided a data orchestrator configured at least for receiving data concerning the measured temperature, determining whether the measured temperature exceeds the predetermined temperature threshold, and migrating one or more of the computing workloads to one or more alternate computing devices. Computer systems and computer programs available as a download or on a computer-readable medium for installation according to the invention are provided.

A system for detecting water leaks is described. In one embodiment, the system includes a plurality of sensors, selected from a moisture sensor, a water level sensor, and / or a water temperature sensor. A processor collects moisture readings from the sensors. In one embodiment, the processor reports a possible water leak when a moisture sensor detects moisture above a moisture threshold value. In one embodiment, the processor reports a water leak when the water level reading exceeds a water threshold value and / or when the temperature reading exceeds a temperature threshold value.

The maximum performance state available to a processor in a computer system, in terms of operating frequency and / or voltage, changes according to thermal criteria. When the temperature increases above a predetermined threshold, the maximum performance state available is reduced. Multiple temperature thresholds may be utilized providing for a gradually reduced maximum performance state as temperature increases. When the temperature returns to a lower level, the maximum performance state available is increased. Changing the maximum available performance state according to temperature provides for more gradual reduction in performance as temperature increases, which results in higher average system performance as temperature increases. Thus, a more gradual reduction in performance is provided while still maintaining a high speed rating of the processor in more ideal conditions. In normal operating conditions, high processor performance is provided, while slightly reduced performance is provided in abnormal operating conditions.

An emphasis converter 52 compares the image data of the current vertical period with the image data of the previous vertical period and controls the input image data to a liquid crystal display panel 4 based on the emphasis conversion parameters stored in tables of ROMs 3a to 3c so as to achieve accelerated drive. A microcomputer 38 is able to realize stable control of selecting emphasis conversion parameters by adding hysteresis to the detected temperature from a thermistor 37 even when the detected temperature fluctuates up and down crossing the temperature threshold.

The present invention facilitates processor speed adjustments within acceptable temperature ranges. In one embodiment, a present invention system includes a temperature sensor that senses the temperature of the processor. When the temperature sensor senses the processor temperature approaching predetermined levels one or more adjustments are performed. For example, the adjustment can include automatically increasing or decreasing a voltage level in response to crossing a temperature threshold.

A semiconductor device that may include temperature sensing circuits is disclosed. The temperature sensing circuits may be used to control various parameters, such as internal regulated supply voltages, internal refresh frequency, a word line low voltage, or the like. In this way, operating specifications of a semiconductor device at worst case temperatures may be met without comprising performance at normal operating temperatures. Each temperature sensing circuit may include a selectable temperature threshold value as well as a selectable temperature hysteresis value. In this way, temperature performance characteristics may be finely tuned. Furthermore, a method of testing the temperature sensing circuits is disclosed in which a current value may be monitored and temperature threshold values and temperature hysteresis values may be thereby determined.

A method and apparatus for temperature sensor calibration is disclosed. In one embodiment, an integrated circuit (IC) is tested at a first known temperature corresponding to a first temperature threshold. During the test, a first temperature reading is obtained from a temperature sensor. A first offset is calculated by determining the difference between the first known temperature and the first temperature reading. The first offset is recorded in a storage unit for later use during operation of the IC. During operation, the first offset may be added to temperature readings obtained from a temperature sensing unit to produce an adjusted temperature value. The adjusted temperature value may be compared to one or more temperature thresholds. Based on the comparisons, a power management unit may perform power control actions.

A method and system for reducing thermal load by monitoring and controlling current flow in a portable computing device (“PCD”) are disclosed. The method includes monitoring a temperature of the PCD and determining if the temperature has reached a temperature threshold condition. This temperature threshold condition may be comprised within any one or more of a plurality of thermal policy states, in which each thermal policy state may dictate various thermal mitigation techniques. The thermal policy states may be associated with values that may indicate thermal loading of a PCD. If the temperature has reached the first threshold condition, then electrical current exiting a power supply device may be monitored. If it is determined that the electrical current has exceeded a current threshold condition, such as a maximum current, a hardware device corresponding to the electrical current may be selected for application of a thermal mitigation technique.

The present invention provides apparatus and methods to perform thermal management in a computing environment. Thermal attributes are associated with operations and / or processing components. The components have thermal thresholds that should not be exceeded. In a preferred embodiment, an operation can be transferred from one component to another component if the thermal threshold is exceeded during execution by the first component.

Described herein are microprocessors, devices, and methods useful for sweat and / or temperature detection that correlate more closely with changes in amperometric or charge signals related to analyte amount or concentration. The present invention provides methods for the establishment of more accurate sweat and / or temperature thresholds and new methods of compensation, such as correcting for the effects of sweat and rapidly changing temperature on measured analyte values. The present invention reduces the number of skipped or unuseable readings provided by analyte monitoring devices during periods of sweating or changing temperatures. Further, the present invention provides methods for improving the accuracy of reported readings of analyte amount or concentration. In one aspect, the present invention provides passive collection reservoir / sensing devices used in combination with active collection reservoir / sensing devices for detection of sweat and / or temperature related parameters.

The invention discloses a pyroelectric detection method for the over-charged safety performance of a lithium ion battery. The method comprises the steps of building a charge conversation model, a mass conservation model and an electrochemical reaction model of the lithium ion battery; simulating the electrical property and electrochemical performance of the electrochemical performance; acquiring a temperature variation simulation curve by simulating the heat production process of the lithium ion battery; charging and over-charging the lithium ion battery, and measuring a practical temperature change curve and a voltage change curve of the lithium ion battery; setting temperature and voltage threshold values, comparing the temperature change curve with the temperature threshold and a temperature change simulation curve, comparing the voltage change curve with the voltage threshold, and detecting the over-charge safety performance of the lithium ion battery. According to the pyroelectric detection method, by contacting the heating effect with electrochemical performance of the lithium ion battery, the rapid pyroelectric detection method for the over-charged safety performance of the lithium ion battery can be provided. The invention further discloses a pyroelectric detection device for the over-charged safety performance of the lithium ion battery.

A method and apparatus for warming up cold temperature lithium chemistry batteries employs a temperature sensor configured to generate a temperature signal indicative of a temperature of the cells of a multi-cell battery. The cells are coupled to a respective balancing circuit having a dissipative resistor that is selectively shunted across the cell for dissipating charge to achieve cell-to-cell balancing. When the temperature is below a temperature threshold, the battery controller engages the balancing resistors to dissipate energy and generate heat to warm up the cells. The cold-temperature shunting is discontinued when a warm-up threshold is reached.

A fluid-cooled computer system includes a plurality of heat-generating components and a cooling system configured for supplying a cooling fluid at a controlled cooling fluid flow rate to cool the heat-generating components. A temperature-based cooling control circuit includes a temperature sensor configured for sensing a temperature of the heat-generating components and control logic for increasing a cooling fluid flow rate in response to the temperature exceeding a temperature threshold. A power-based cooling control circuit is configured for identifying and quantifying an increasing power consumption trend over a target time interval and, during a period that the temperature of the electronic device does not exceed the temperature threshold, increasing a cooling fluid flow rate to the electronic device in response to the magnitude of the increasing power consumption trend exceeding a power threshold. In one option, the fluid-cooled computer system is a server and the heat-generating components include a processor.

An apparatus is provided for facilitating cooling of an electronics rack of a data center. The apparatus includes: an airflow director mounted to the electronics rack to redirect airflow exhausting from the electronics rack through an airflow return pathway back towards an air inlet side of the rack; an air-to-liquid heat exchanger disposed within the airflow return pathway for cooling redirected airflow before exiting into the data center near the air inlet side of the rack; an air temperature sensor for monitoring air temperature of the redirected airflow; and an automated isolation door associated with the airflow director for automatically blocking airflow exhausting from the air outlet side of the electronics rack from passing through the airflow return pathway back towards the air inlet side of the rack responsive to temperature of the redirected airflow exceeding a defined temperature threshold.

The invention discloses a low-temperature battery charging method which comprises the following steps that: when the battery temperature is lower than a temperature threshold, a battery is subjected to pulsed charging; and when the battery temperature reaches the temperature threshold, the battery is charged normally. The low-temperature battery charging method provided by the invention can be used for charging a battery at a low temperature according to the super long cycle service of the novel battery and avoidance of side effects of separation out of lithium ions at a negative electrode in high-magnification charging at a low temperature and the like, and the battery can be charged at a low temperature to a degree which is equivalent to that of charging at a normal temperature. The low-temperature battery charging method has the advantages of safety, reliability, high charge efficiency and prolongation of service life of the battery.

The present invention relates to a computer temp.-controlled equipment and its method. Said method includes the following steps: utilizing PU temp. fetch device to fetch CPU temp. at regular time, using control device to compare said temp. with temp. threshold value, according to the compared result outputting two temp. control voltage signals, the fan control device of CPU can utilize one voltage signal to regulate CPU fan rotating speed, at the same time utilizing a selector to selectively output temp. control voltage and higher voltage selected from voltages correspondent to power supply temp. measured by temp.-measuring device in the power supply interior, and utilizing power supply fan rotating speed control device and outputted higher voltage to control power supply fan rotating speed.

Embodiments of the present invention disclose a method and an apparatus for controlling chip performance, and relate to the field of communications technologies, which solves a problem in the prior art that a chip is reset or performance is greatly decreased as long as a temperature of the chip is higher than a preset threshold. The method includes: obtaining a working temperature of a chip; when the working temperature of the chip reaches one of multiple preset temperature thresholds, obtaining, according to preset correspondence between a temperature threshold and a chip performance control policy, a chip performance control policy that corresponds to the one of the multiple temperature thresholds; and controlling working of the chip according to the control policy. The present invention is applicable to an electronic device to which a chip is applied, such as a desktop computer or a notebook computer.

Various embodiments of methods and systems for leveraging a user proximity measurement to determine thermal management policies in a portable computing device (“PCD”) are disclosed. By leveraging the proximity measurement to set temperature thresholds, the quality of service (“QoS”) provided by the PCD can be optimized when touch temperature of the PCD is not a significant factor for user experience. One such method involves monitoring a proximity signal to determine relative physical proximity of the PCD to a user. Based on the user proximity, a temperature threshold associated with a temperature sensor may be set and compared with an actual temperature measurement received from the temperature sensor. Based on the comparison, thermal management policies in the PCD can be evaluated. For instance, if the temperature threshold is higher than the actual measurement, PCD components may be allowed to increase power consumption, even though PCD temperature may rise, thereby optimizing QoS.

The present invention provides circuits and methods for regulating and / or controlling integrated circuits such as drivers and switching regulators. The circuit generally includes a first switch configured to control or regulate a current, voltage drop or voltage boost; a first regulator or driver configured to transmit first pulses to the first switch, the pulses having a first pulse width; and pulse width modulation circuitry configured to (i) reduce the first pulse width when a first thermal threshold is met and (ii) increase the first pulse width when a second thermal threshold is met, the second thermal threshold being less than the first thermal threshold.

The invention is suitable for the technical field of household appliances, and provides a method for judging leakage of a refrigerant in an inverter air conditioner. The method comprises the following steps: obtaining temperature T of a coil pipe of an indoor unit before the compressor of the inverter air conditioner is operated; obtaining temperature T1 of the coil pipe of the indoor unit and indoor temperature TC1; judging whether the absolute value of the difference of T and T1 is smaller than a first temperature threshold value d1 and moreover the absolute value of the difference of TC1 and T1 is smaller than d2, if so, adjusting the inverter air conditioner from the topmost wind gear to the lowest wind gear; operating the inverter air conditioner at the lowest wind gear for a second set time t2; obtaining the temperature T2 of the coil pipe of the indoor unit and the indoor temperature TC2; and when the absolute value of the difference of T and T2 is smaller than d1 and moreover the absolute value of the difference of TC2 and T2 is smaller than d2, determining the leakage of the refrigerant in the inverter air conditioner, and stopping the operation of the compressor. The technical scheme provided by the invention has the advantage of low misjudgment rate.

The temperature sensing circuits may be used to control various parameters, such as internal regulated supply voltages, internal refresh frequency, a word line low voltage, or the like. In this way, operating specifications of a semiconductor device at worst case temperatures may be met without comprising performance at normal operating temperatures. Each temperature sensing circuit may include a selectable temperature threshold value as well as a selectable temperature hysteresis value. In this way, temperature performance characteristics may be finely tuned. Furthermore, a method of testing the temperature sensing circuits is disclosed in which a current value may be monitored and temperature threshold values and temperature hysteresis values may be thereby determined.

The embodiment of the invention provides a wireless terminal and an auxiliary antenna state control method thereof. The method comprises the following steps of: acquiring the temperature of the wireless terminal; judging a relation between the temperature of the wireless terminal and a temperature threshold upper limit as well as a temperature threshold lower limit; when the temperature of the wireless terminal is higher than the temperature threshold upper limit, switching the auxiliary antenna off; or when the temperature of the wireless terminal is lower than the temperature threshold lower limit, switching the auxiliary antenna on. Due to the adoption of the method, overheat of the wireless terminal and potential safety hazards such as chip over-temperature, aging failure or short-circuit burning and the like caused by the overheat can be prevented. Simultaneously, continuous use of the wireless terminal by a user can be ensured and impacts (sudden change of flow speed, offline and the like) on the user during practical use are minimized.

The invention discloses a method and device for controlling an outdoor fan in a split air-conditioner. The method includes the steps that the current outdoor environment temperature is detected; when the current outdoor environment temperature is larger than or equal to a preset outdoor environment temperature threshold value, the gear mode of the outdoor fan is determined according to the current outdoor environment temperature; when the current outdoor environment temperature is smaller than the preset outdoor environment temperature threshold value, the current outdoor condenser outlet pipe temperature is detected, and the current operation frequency of a compressor is acquired; the gear mode of the outdoor fan is determined according to the current outdoor environment temperature, the current outdoor condenser outlet pipe temperature and the current operation frequency of the compressor. According to the method, linkage control can be conducted according to the four parameters of the outdoor environment temperature, the condenser outlet pipe temperature, the revolving speed of the outdoor fan and the operation frequency of the compressor, the air-conditioner can operate efficiently, and therefore the low temperature refrigeration capacity is improved.

A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the selector circuit by toggling a voltage on an external terminal such as for example a power supply terminal, a control terminal or a function terminal of the power supply controller. The programmable circuit connection in the trim circuit can be programmed by applying a programming voltage to the external terminal. The shutdown circuit shuts down the power supply controller if the temperature rises above an over temperature threshold voltage. The shutdown circuit includes adjustment circuitry that can be used to test the shutdown circuit. The adjustment circuitry can adjust and reduce the over temperature threshold of the power supply controller. Thus, the power supply controller can be tested without having to actually heat the part. The disable circuit includes a programmable circuit connection, which when programmed prevents further trimming of power supply controller and prevents adjustment of the shutdown circuit over temperature threshold.

A sun protection system for a transportation vehicle has plurality of LCD zones laminated into one or more glazings of the vehicle. An occupant sensor detects an expanse of at least one occupant in the vehicle. A navigation system determines a vehicle location, a date and time value, and a heading. External and internal temperature sensors sense outside and inside temperatures. A controller generates respective drive signals for the respective LCD zones in a manual mode and in an automatic mode. The controller compares a temperature difference between the outside temperature and the inside temperature to a temperature threshold. The respective drive signals provide substantially zero attenuation if the temperature difference is less than the temperature threshold while in the automatic mode.

Provided is a power system capable of supplying power steadily to the outside even at a low temperature. A power supply unit disposed in the power system is configured to calculate an amount of power needed to heat a fuel cell to a temperature threshold when the temperature thereof measured by an FC sensor is below the temperature threshold, set an SOC lower limit by adding the calculated amount of power to a discharge threshold of a secondary battery, and control the power supply to a first power supply portion in the range of the SOC lower limit.