CN118177864B - Power management method, device, medium and equipment for ultrasonic equipment - Google Patents
Power management method, device, medium and equipment for ultrasonic equipment Download PDFInfo
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- 238000007726 management method Methods 0.000 title claims abstract description 54
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Abstract
The invention relates to the technical field of ultrasonic equipment, in particular to a power management method, a device, a medium and equipment of ultrasonic equipment, comprising the following steps: monitoring the transmitting time and the receiving time of the ultrasonic equipment, and evaluating the power consumption required by the processing task and the storage task of the ultrasonic equipment; when judging that the switching condition is met according to the monitoring result and the evaluation result, switching the equipment from the working mode to the NTC mode, and calculating the power consumption in the NTC mode; monitoring equipment tasks in real time in an NTC mode, wherein the equipment tasks comprise processing tasks and storage tasks, and correcting abnormal equipment tasks; before the next transmission and reception of the ultrasonic equipment starts, the equipment is switched from the NTC mode to the working mode, and the scheme combines the dynamic power management DPM and the near-threshold value calculation NTC technology, so that the energy consumption of the ultrasonic equipment in the middle of the ultrasonic transmission and reception or in the time of suspension is effectively managed, and the optimal utilization of energy and the minimization of power consumption are realized.
Description
Technical Field
The present invention relates to the field of ultrasound devices, and in particular, to a method, an apparatus, a medium, and a device for power management of an ultrasound device.
Background
With the rapid development of ambulatory medical technology, handheld ultrasound systems have become an important tool in the medical field due to their portability, immediacy and flexibility of operation. They are widely used in the scenes of rapid diagnosis, emergency medical rescue, telemedicine, etc. However, the power consumption and battery life of these devices are one of the bottlenecks limiting their wider application.
The ultrasonic probe of the ultrasonic equipment generates ultrasonic waves to the target object, the ultrasonic energy emitted by the ultrasonic probe acts on the target object and receives ultrasonic signals reflected from the target object to work, and the ultrasonic probe is always in a normal working state during the transmission and reception gaps, so that unnecessary energy consumption can be caused, and meanwhile, if the target object is in a certain fixed position and is kept still, concentrated ultrasonic energy cannot be small, and the ultrasonic equipment itself or the target object can be damaged.
Although the existing handheld ultrasound systems have adopted various methods to attempt to reduce power consumption, such as using low-power electronic components, optimizing algorithms to reduce computing requirements, etc., these measures often have difficulty in achieving fundamental energy consumption reduction without sacrificing device performance, and particularly in the ultrasonic transmission, reception and processing of devices, effective power supply energy consumption management cannot be performed, resulting in problems of high energy consumption, low efficiency and poor safety.
Disclosure of Invention
The invention provides a power management method, a device, a medium and equipment of ultrasonic equipment, which are used for solving the technical problem that the energy consumption of the ultrasonic equipment is too high.
In order to solve the above technical problems, an embodiment of the present invention provides a power management method for an ultrasonic device, including:
Monitoring the transmitting time and the receiving time of the ultrasonic equipment, and evaluating the power consumption required by the processing task and the storage task of the ultrasonic equipment;
when judging that the switching condition is met according to the monitoring result and the evaluation result, switching the equipment from the working mode to the NTC mode, and calculating the power consumption in the NTC mode;
Monitoring equipment tasks in real time in an NTC mode, wherein the equipment tasks comprise processing tasks and storage tasks, and correcting abnormal equipment tasks;
The device is switched from NTC mode to operational mode before the next transmission and reception of the ultrasound device begins.
In this way, a power management method of an ultrasonic device is provided, and by combining Dynamic Power Management (DPM) and near-threshold computing (NTC) technologies, the energy consumption of the ultrasonic device in the middle of ultrasonic transmission and reception or in the time of suspension is effectively managed, so that the optimal utilization of energy and the minimization of power consumption are realized.
As a preferred solution, when the switching condition is determined to be met according to the monitoring result and the evaluation result, the switching device switches from the working mode to the NTC mode, and calculates the power consumption in the NTC mode, specifically:
and when judging that the pause time period between the ultrasonic wave transmitting time and the ultrasonic wave receiving time is larger than the preset pause time period according to the monitoring result and judging that the delay tolerance of the current task is larger than the preset delay tolerance according to the evaluation result, switching the equipment from the working mode to the NTC mode, and calculating the power consumption in the NTC mode.
According to the real-time requirements of all the modules, the power distribution is dynamically adjusted, the power supply of non-key modules is reduced, and the optimization of energy consumption is realized.
As a preferred solution, the power consumption in the NTC mode is calculated by the following formula:
P_NTC = C*V_NTC^2*f_NTC
wherein, p_ntc is the power consumption of the ultrasonic device, C is the switched capacitor, v_ntc is the near-threshold operating voltage, f_ntc is the operating frequency at the near-threshold operating voltage, and compared with the power consumption in the normal mode, the power consumption in the NTC mode is significantly reduced because the reduction of the voltage has an exponential effect on the power consumption.
As a preferred solution, in real-time monitoring of device tasks in NTC mode, the device tasks include a processing task and a storage task, and correcting abnormal device tasks, including:
Executing equipment tasks for multiple times and comparing the results, if the equipment tasks are consistent, not performing operation, and if the equipment tasks are inconsistent, selecting most of the multiple execution results as correct results;
the device task is monitored in real time in the NTC mode, using error correction codes to detect and correct the error bits.
Thus, the working accuracy of the ultrasonic equipment can be improved, and the task error of the ultrasonic equipment can be reduced and eliminated.
The embodiment of the invention also provides a power management device of the ultrasonic equipment, which comprises an evaluation module, an NTC switching module, a monitoring module and a work switching module;
The evaluation module is used for monitoring the transmitting time and the receiving time of the ultrasonic equipment and evaluating the power consumption required by the processing task and the storage task of the ultrasonic equipment;
The NTC switching module is used for switching equipment from a working mode to an NTC mode and calculating power consumption in the NTC mode when judging that the switching condition is met according to the monitoring result and the evaluation result;
The monitoring module is used for monitoring equipment tasks in real time in an NTC mode, wherein the equipment tasks comprise processing tasks and storage tasks, and correcting abnormal equipment tasks;
the working switching module is used for switching the equipment from the NTC mode to the working mode before the next transmission and reception of the ultrasonic equipment are started.
As a preferred solution, the NTC switching module is specifically an NTC switching unit;
the NTC switching unit is used for switching equipment from a working mode to an NTC mode and calculating power consumption under the NTC mode when judging that a pause time period between ultrasonic wave transmitting time and ultrasonic wave receiving time is larger than a preset pause time period according to a monitoring result and judging that delay tolerance of a current task is larger than the preset delay tolerance according to an evaluation result.
As a preferred solution, the NTC switching module calculates the power consumption in the NTC mode, where the calculation formula is:
P_NTC = C*V_NTC^2*f_NTC
where p_ntc is the power consumption of the ultrasound device, C is the switched capacitor, v_ntc is the near-threshold operating voltage, and f_ntc is the operating frequency at the near-threshold operating voltage.
Preferably, the monitoring module comprises a redundancy unit and a correction unit;
The redundancy unit is used for executing equipment tasks for multiple times and comparing the results, if the equipment tasks are consistent, the operation is not performed, and if the equipment tasks are inconsistent, most of the results in the multiple execution results are selected as correct results;
The correction unit is used for monitoring equipment tasks in real time in the NTC mode, and detecting and correcting error bits by using error correction codes.
The embodiment of the invention also provides a storage medium, wherein the storage medium is stored with a computer program, and the computer program is called and executed by a computer to realize the power management method of the ultrasonic equipment.
The embodiment of the invention also provides ultrasonic equipment, which comprises an ultrasonic transmitting probe, an ultrasonic receiving probe, a power management module, a data storage and transmission module and a signal processing module, wherein the data storage and transmission module and the signal processing module are connected with the power management module, and the power management module is used for carrying out power management on other components in the ultrasonic equipment based on the power management method of the ultrasonic equipment.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
The power management method of the ultrasonic equipment is provided, and combines dynamic power management DPM and near threshold value calculation NTC technology to effectively manage the energy consumption of the ultrasonic equipment in the working or pause time between ultrasonic wave transmission and reception so as to realize optimal utilization of energy and minimization of power consumption.
The portable diagnosis solution with high efficiency and low power consumption is provided for the medical field, the power consumption of the handheld ultrasonic system is obviously reduced through the technical scheme, and particularly, the scheme not only prolongs the service time of the equipment, but also ensures the stability of the diagnosis performance in the key stages of standby, excitation, reception and the like of the equipment.
Drawings
Fig. 1 is a schematic flow chart of a power management method of an ultrasonic device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a power management device of an ultrasonic apparatus according to an embodiment of the present invention;
FIG. 3 is a functional block diagram of an ultrasonic device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an ultrasonic apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram II of an ultrasonic apparatus according to an embodiment of the present invention;
wherein, the reference numerals of the specification drawings are as follows:
1. The ultrasonic wave receiving probe, 2, the ultrasonic wave transmitting probe, 3, the power management module, 4, the data storage and transmission module, 5, the ultrasonic wave excitation module, 6, the ultrasonic wave receiving module, 7, the signal processing module, 100, the evaluation module, 200, the NTC switching module, 201, the NTC switching unit, 300, the monitoring module, 301, the redundancy unit, 302, the correction unit, 400, the work switching module, 500, the optimization module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a power management method of an ultrasonic device according to an embodiment of the present invention includes:
S1, monitoring the transmitting time and the receiving time of the ultrasonic equipment, and evaluating the power consumption required by the processing task and the storage task of the ultrasonic equipment, including excitation, receiving, processing, displaying and the like.
During the gaps between ultrasonic transmission and reception, performance requirements of the ultrasonic device are assessed, including analysis of the requirements of signal processing tasks, data storage tasks, and data transmission tasks.
The power consumption calculation of a memory task is complicated because it depends not only on the operating voltage and frequency, but also on the access frequency and the memory type, such as DRAM, SRAM or Flash.
S2, when judging that the switching condition is met according to the monitoring result and the evaluation result, switching the equipment state to an NTC mode, and calculating the power consumption in the NTC mode, wherein the specific steps are as follows: and when judging that the pause time period between the ultrasonic wave transmitting time and the ultrasonic wave receiving time is larger than the preset pause time period according to the monitoring result and judging that the delay tolerance of the current task is larger than the preset delay tolerance according to the evaluation result, switching the equipment from the working mode to the NTC mode, and calculating the power consumption in the NTC mode.
And S2.1, the switching condition is that the pause time period between the ultrasonic wave transmitting time and the ultrasonic wave receiving time is longer than the preset pause time period, namely, the pause time between the transmitting time and the receiving time is long enough.
And S2.2, when judging that the delay tolerance of the current task is greater than the preset delay tolerance according to the evaluation result, switching the working mode of the switching device to the NTC mode, specifically, switching key components of the ultrasonic device such as the signal processing module, the data storage and transmission module and the like to the NTC mode, and correspondingly, reducing the voltage of the processor from a normal voltage value to a value close to the threshold voltage. According to the real-time requirements of all the modules, the power distribution is dynamically adjusted, the power supply of non-key modules is reduced, and the optimization of energy consumption is realized.
The tolerance information is mainly obtained through a pre-performance and power consumption test and feedback in practical application, and the establishment of the tolerance standard considers the emergency degree of medical diagnosis, the sensitivity of a user to delay, the performance index of equipment and the like.
Delay tolerance, which is the maximum delay that can be accepted when performing data processing or data storage tasks without affecting overall performance, is closely related to the power consumption required for processing and storage tasks of the ultrasound device, since in NTC mode, the system may run slower in order to reduce power consumption, thereby increasing the completion time of the task.
As an embodiment of the invention, for non-urgent routine checks, a higher delay tolerance is correspondingly set to further reduce power consumption, while for urgent medical situations, a lower delay tolerance is correspondingly set to rapidly provide diagnostic results, even if this means to increase power consumption.
S2.3, calculating NTC near threshold value, namely making the integrated circuit work under near threshold voltage, two voltage values are lower than normal voltage, this is the technology that is born to deal with the problem that the power consumption of the chip is bigger and bigger, expects to reduce the power consumption, can reduce the heat dissipation by reducing the voltage to a certain extent and guaranteeing that the performance requirement can be met under the condition of low power consumption under the premise of guaranteeing certain calculation capability.
And calculating the power consumption in the NTC mode, wherein the calculation formula is as follows:
P_NTC = C*V_NTC^2*f_NTC
Wherein, p_ntc is the power consumption of the processor, C is the switched capacitor, v_ntc is the near-threshold operating voltage, f_ntc is the operating frequency at this voltage, and compared with the power consumption in the normal mode, the power consumption in the NTC mode is significantly reduced, because the reduction of the voltage has an exponential effect on the power consumption.
The exponent 2 of the near-threshold operating voltage v_ntc derives from the power consumption versus voltage squared, which is a general expression of power consumption versus voltage in semiconductor devices, 2 being chosen as the exponent because in complementary metal oxide semiconductor CMOS technology, the dynamic power consumption of a device is proportional to the square of the voltage. Although higher indices can be theoretically considered to express other effects such as leakage current, etc., in practical applications, the square relationship of voltage is a major factor in dominant dynamic power consumption.
S3, monitoring equipment tasks in real time in an NTC mode, wherein the equipment tasks comprise processing tasks and storage tasks, correcting abnormal equipment tasks, and continuously monitoring the performance and energy consumption of a processor in the NTC mode to ensure that the basic performance requirements of the tasks can be met even under the condition of voltage reduction.
Error detection techniques and correction techniques, such as redundant computation and error correction code ECC, are applied to manage computation errors that may be introduced in the NTC mode due to the operating voltage being close to or below the threshold voltage of the device.
And redundant calculation, namely performing equipment tasks twice or more and comparing the results, if the equipment tasks are consistent, not performing operation, and if the equipment tasks are inconsistent, selecting most of the results in the multiple execution results as correct results, or repeating calculation. Thus, the working accuracy of the ultrasonic equipment can be improved, and the task error of the ultrasonic equipment can be reduced and eliminated.
As an embodiment of the present invention, if it is found that the multiple calculation results of a certain pixel region are not consistent when processing an ultrasound image, most of the multiple calculation results may be automatically selected as correct results or re-calculated to ensure accuracy.
The error correction code ECC is used for monitoring equipment tasks in real time in the NTC mode, and error correction codes are used for detecting and correcting error bits, so that the integrity of data generated in the monitoring tasks can be ensured.
Based on the performance requirement assessment of step S1, low power consumption states are planned for the individual modules, in particular signal processing modules, which may include reducing the operating frequency of certain modules, partially shutting down unnecessary functions, etc.
And S4, switching the equipment state to the working mode before the next transmission and reception of the ultrasonic equipment are started, namely ensuring that the ultrasonic equipment switched to the NTC mode can be recovered to the normal working state in time so as to ensure the instantaneity and the performance requirement of the equipment.
And S5, after the equipment state is switched to the working mode, performance evaluation is carried out after a complete period is finished, the influence of the NTC mode and the DPM strategy on performance and energy consumption is evaluated, and the voltage setting and the error management strategy in the NTC mode are continuously optimized to realize better energy efficiency ratio and provide data support for future optimization.
As an embodiment of the invention, the specific data may vary depending on the actual design and implementation details, but taking a typical B-mode scan as an example, it is assumed that in normal mode the power consumption of the processing module is 3000 milliwatts mW, whereas in NTC mode the power consumption may be reduced to 1800mW due to a significant reduction in voltage, reducing 40% of the power consumption, which significant reduction in power consumption allows the device to operate longer at the same battery capacity, or using smaller batteries to reduce the device weight.
In general, the embodiment of the invention has the following beneficial effects:
The embodiment of the invention provides a power management method of ultrasonic equipment, which combines dynamic power management DPM and near threshold value calculation NTC technology to effectively manage the energy consumption of the ultrasonic equipment in the middle of ultrasonic wave transmission and reception or in the time of suspension so as to realize optimal utilization of energy and minimization of power consumption.
The portable diagnosis solution with high efficiency and low power consumption is provided for the medical field, the power consumption of the handheld ultrasonic system is obviously reduced through the technical scheme, and particularly, the scheme not only prolongs the service time of the equipment, but also ensures the stability of the diagnosis performance in the key stages of standby, excitation, reception and the like of the equipment.
Example two
Referring to fig. 2, a power management apparatus for an ultrasonic device according to an embodiment of the present invention includes an evaluation module 100, an NTC switching module 200, a monitoring module 300, a work switching module 400, and an optimization module 500;
the evaluation module 100 is configured to monitor a transmitting time and a receiving time of the ultrasonic device, and evaluate power consumption required by a processing task and a storage task of the ultrasonic device.
During the gaps between ultrasound transmission and reception, performance requirements of the ultrasound device are evaluated, including analysis of requirements for signal processing tasks, data storage tasks, and data transfer tasks, where the power consumption calculation of the storage tasks is complex, as it is not only dependent on operating voltage and frequency, but also affected by access frequency and storage type, such as DRAM, SRAM, or Flash.
The NTC switching module 200 is configured to switch the device from the working mode to the NTC mode and calculate the power consumption in the NTC mode when the switching condition is determined to be satisfied according to the monitoring result and the evaluation result, and specifically includes an NTC switching unit 201:
the NTC switching unit 201 is configured to switch the device from a working mode to an NTC mode and calculate power consumption in the NTC mode when it is determined, according to a monitoring result, that a pause period between an ultrasonic transmitting time and an ultrasonic receiving time is greater than a preset pause period and it is determined, according to an evaluation result, that a delay tolerance of a current task is greater than a preset delay tolerance.
The first condition is: the pause period between the ultrasonic wave transmitting time and the ultrasonic wave receiving time is longer than the preset pause period, i.e., the pause period between the transmission and the reception is confirmed to be sufficiently long.
The second condition is: when the delay tolerance of the current task is judged to be greater than the preset delay tolerance according to the evaluation result, the switching equipment switches the working mode to the NTC mode, specifically, key components of the ultrasonic equipment such as the signal processing module, the data storage and transmission module and the like are switched to the NTC mode, and correspondingly, the voltage of the processor is reduced from a normal voltage value to be close to a threshold voltage. According to the real-time requirements of all the modules, the power distribution is dynamically adjusted, the power supply of non-key modules is reduced, and the optimization of energy consumption is realized.
The tolerance information is mainly obtained through a pre-performance and power consumption test and feedback in practical application, and the establishment of the tolerance standard considers the emergency degree of medical diagnosis, the sensitivity of a user to delay, the performance index of equipment and the like.
Delay tolerance, which is the maximum delay that can be accepted when performing data processing or data storage tasks without affecting overall performance, is closely related to the power consumption required for processing and storage tasks of the ultrasound device, since in NTC mode, the system may run slower in order to reduce power consumption, thereby increasing the completion time of the task.
As an embodiment of the invention, for non-urgent routine checks, a higher delay tolerance is correspondingly set to further reduce power consumption, while for urgent medical situations, a lower delay tolerance is correspondingly set to rapidly provide diagnostic results, even if this means to increase power consumption.
The power consumption in the NTC mode is calculated in the NTC switching module 200, and the calculation formula is as follows:
P_NTC = C*V_NTC^2*f_NTC
where p_ntc is the power consumption of the ultrasound device, C is the switched capacitor, v_ntc is the near-threshold operating voltage, and f_ntc is the operating frequency at the near-threshold operating voltage.
The exponent 2 of the near-threshold operating voltage v_ntc derives from the power consumption versus voltage squared, which is a general expression of power consumption versus voltage in semiconductor devices, 2 being chosen as the exponent because in complementary metal oxide semiconductor CMOS technology, the dynamic power consumption of a device is proportional to the square of the voltage. Although higher indices can be theoretically considered to express other effects such as leakage current, etc., in practical applications, the square relationship of voltage is a major factor in dominant dynamic power consumption.
The monitoring module 300 is configured to monitor, in real time, equipment tasks in an NTC mode, where the equipment tasks include a processing task and a storage task, and correct abnormal equipment tasks, and specifically includes a redundancy unit 301 and a correction unit 302:
The redundancy unit 301 is configured to execute the task of the device for multiple times and compare the results, if the tasks are consistent, the operation is not performed, and if the tasks are inconsistent, a plurality of results in the results of multiple execution are selected as correct results, so that the working accuracy of the ultrasonic device can be improved, and errors of the task of the ultrasonic device can be reduced to be eliminated.
As an embodiment of the present invention, if it is found that the multiple calculation results of a certain pixel region are not consistent when processing an ultrasound image, most of the multiple calculation results may be automatically selected as correct results or re-calculated to ensure accuracy.
The correction unit 302 is configured to monitor the task of the device in real time in the NTC mode, and use the error correction code to detect and correct the error bit, so as to ensure the integrity of the data generated in the monitoring task.
The work switching module 400 is configured to switch the device from the NTC mode to the working mode before the next transmission and reception of the ultrasonic device are started, that is, to ensure that the ultrasonic device that has been switched to the NTC mode can be restored to the normal working state in time, so as to ensure the real-time performance and performance requirements of the device.
The optimizing module 500 is configured to perform performance evaluation after switching the device state to the working mode, i.e. after a complete cycle is completed, evaluate the influence of the NTC mode and the DPM policy on performance and energy consumption, continuously optimize the voltage setting and the error management policy in the NTC mode, so as to achieve a better energy efficiency ratio, and provide data support for future optimization.
As an embodiment of the invention, the specific data may vary depending on the actual design and implementation details, but taking a typical B-mode scan as an example, it is assumed that in normal mode the power consumption of the processing module is 3000 milliwatts mW, whereas in NTC mode the power consumption may be reduced to 1800mW due to a significant reduction in voltage, reducing 40% of the power consumption, which significant reduction in power consumption allows the device to operate longer at the same battery capacity, or using smaller batteries to reduce the device weight.
In general, the embodiment of the invention has the following beneficial effects:
The embodiment of the invention provides a power management device of ultrasonic equipment, which combines dynamic power management DPM and near threshold value calculation NTC technology to effectively manage the energy consumption of the ultrasonic equipment in the middle of ultrasonic transmission and reception or in the time of suspension so as to realize optimal utilization of energy and minimization of power consumption.
The portable diagnosis solution with high efficiency and low power consumption is provided for the medical field, the power consumption of the handheld ultrasonic system is obviously reduced through the technical scheme, and particularly, the scheme not only prolongs the service time of the equipment, but also ensures the stability of the diagnosis performance in the key stages of standby, excitation, reception and the like of the equipment.
Embodiment III:
The embodiment of the invention provides a storage medium, wherein a computer program is stored on the storage medium, and the computer program is called and executed by a computer to realize the power management method of the ultrasonic equipment.
Wherein the power management method of the ultrasonic device, if implemented in the form of a software functional unit and used as a stand-alone product, can be stored in a computer-readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
Example IV
Referring to fig. 3 to 5, fig. 4 and 5 are schematic diagrams of different views of an ultrasonic apparatus according to an embodiment of the present invention, and the apparatus includes an ultrasonic transmitting probe 2, an ultrasonic receiving probe 1, an ultrasonic excitation module 5 and an ultrasonic receiving module 6. The ultrasonic transmitting probe 2 and the ultrasonic receiving probe 1 may be a convex array, a linear array, a phased array, a cavity or a micro convex, the ultrasonic excitation module 5 is responsible for generating ultrasonic waves for scanning a target object, such as internal tissue, and the ultrasonic receiving module 6 is used for receiving ultrasonic signals reflected by the internal tissue.
And the equipment is arranged in a shape with concave middle and convex two sides, so that the handheld work is more convenient.
The power management module 3 is used for managing the power of other components in the ultrasonic equipment based on the power management method of the ultrasonic equipment provided by the first embodiment.
Power management module 3: the power supply of the management device comprises battery charge and discharge management and power distribution of each module, and the power management module 3 is one of core components and is responsible for the power distribution and optimization of the whole system. The power management module 3 receives information from the signal processing module 7 and the data storage and transmission module 4, including the current power consumption, operating status, etc. of the module, in order to adjust the power distribution in real time, thus optimizing the power consumption.
Data storage and transmission module 4: storing the image and diagnostic information supports exchanging data with other devices or systems, either wirelessly or by wire.
Signal processing module 7: the received ultrasonic signals are processed to generate images or other forms of diagnostic information.
Referring to fig. 3, an ultrasonic apparatus according to an embodiment of the present invention further includes a high voltage switch and an analog front end.
The high-voltage switch is used for controlling the power supply of the ultrasonic excitation module, and when the ultrasonic excitation module needs to emit ultrasonic waves, the high-voltage switch can be started to provide necessary high voltage for the ultrasonic excitation module, and after the emission is finished, the high-voltage switch can be closed to reduce unnecessary energy consumption.
The signal transmission and processing flow is as follows:
the ultrasonic excitation module is connected with the multichannel transmission module and transmits excitation signals to the multichannel transmission module, the multichannel transmission module transmits ultrasonic waves through the transmitting probe, namely the probe 1, and the receiving probe, namely the probe 2 captures reflected ultrasonic signals of internal tissues and sequentially transmits the reflected ultrasonic signals to the ultrasonic receiving module 6 through the high-voltage switch and the analog front end.
The ultrasonic wave receiving module 6 receives these signals and transmits them to the signal processing module 7.
The signal processing module 7 processes these signals, generates an image or other form of diagnostic information, and transmits it to the data storage and transmission module 4, while transmitting the relevant power consumption and status information to the power management module 3.
The data storage and transmission module 4 is responsible for storing processed information and supporting data exchange with other devices or systems. At the same time, it also passes its own power consumption and status information to the power management module 3.
Further, the information can be transferred with the control software in the tablet or the mobile phone through USB, or with the control software in the tablet or the mobile phone through antenna or WIFI.
The power management module 3 dynamically adjusts power distribution according to the received information to optimize overall power consumption, wherein the power in the power management module is a lithium battery.
In general, the embodiment of the invention has the following beneficial effects:
The embodiment of the invention provides an ultrasonic device, namely a novel low-power-consumption handheld ultrasonic system, which effectively reduces the energy consumption of the ultrasonic device in various working modes, prolongs the battery endurance time and simultaneously maintains the high performance and reliability of the device by introducing a Dynamic Power Management (DPM) and a near-threshold computing (NTC) technology.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present invention, and are not to be construed as limiting the scope of the invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A method for power management of an ultrasound device, comprising:
Monitoring the transmitting time and the receiving time of the ultrasonic equipment, and evaluating the power consumption required by the processing task and the storage task of the ultrasonic equipment;
when judging that the switching condition is met according to the monitoring result and the evaluation result, switching the equipment from the working mode to the NTC mode, and calculating the power consumption in the NTC mode;
Monitoring equipment tasks in real time in an NTC mode, wherein the equipment tasks comprise processing tasks and storage tasks, and correcting abnormal equipment tasks;
switching the device from the NTC mode to the operational mode before the next transmission and reception of the ultrasonic device begins;
When judging that the switching condition is met according to the monitoring result and the evaluation result, switching equipment from a working mode to an NTC mode, and calculating the power consumption in the NTC mode, wherein the specific steps are as follows:
Judging that the pause time period between the ultrasonic wave transmitting time and the ultrasonic wave receiving time is larger than the preset pause time period according to the monitoring result, and switching the equipment from the working mode to the NTC mode and calculating the power consumption under the NTC mode when judging that the delay tolerance of the current task is larger than the preset delay tolerance according to the evaluation result;
the real-time monitoring of the device task in the NTC mode, where the device task includes a processing task and a storage task, and correcting an abnormal device task includes:
Executing equipment tasks for multiple times and comparing the results, if the equipment tasks are consistent, not performing operation, and if the equipment tasks are inconsistent, selecting most of the multiple execution results as correct results;
the device task is monitored in real time in the NTC mode, using error correction codes to detect and correct the error bits.
2. The power management method of an ultrasonic device according to claim 1, wherein the power consumption in the NTC mode is calculated by the following formula:
P_NTC = C*V_NTC^2*f_NTC
where p_ntc is the power consumption of the ultrasound device, C is the switched capacitor, v_ntc is the near-threshold operating voltage, and f_ntc is the operating frequency at the near-threshold operating voltage.
3. The power supply management device of the ultrasonic equipment is characterized by comprising an evaluation module, an NTC switching module, a monitoring module and a work switching module;
The evaluation module is used for monitoring the transmitting time and the receiving time of the ultrasonic equipment and evaluating the power consumption required by the processing task and the storage task of the ultrasonic equipment;
The NTC switching module is used for switching equipment from a working mode to an NTC mode and calculating power consumption in the NTC mode when judging that the switching condition is met according to the monitoring result and the evaluation result;
The monitoring module is used for monitoring equipment tasks in real time in an NTC mode, wherein the equipment tasks comprise processing tasks and storage tasks, and correcting abnormal equipment tasks;
The working switching module is used for switching the equipment from the NTC mode to the working mode before the next transmission and reception of the ultrasonic equipment are started;
the NTC switching module is specifically an NTC switching unit;
The NTC switching unit is used for switching equipment from a working mode to an NTC mode and calculating power consumption in the NTC mode when judging that a pause time period between ultrasonic wave transmitting time and ultrasonic wave receiving time is larger than a preset pause time period according to a monitoring result and judging that delay tolerance of a current task is larger than the preset delay tolerance according to an evaluation result;
the monitoring module comprises a redundancy unit and a correction unit;
The redundancy unit is used for executing equipment tasks for multiple times and comparing the results, if the equipment tasks are consistent, the operation is not performed, and if the equipment tasks are inconsistent, most of the results in the multiple execution results are selected as correct results;
The correction unit is used for monitoring equipment tasks in real time in the NTC mode, and detecting and correcting error bits by using error correction codes.
4. The power management apparatus of an ultrasound device according to claim 3, wherein the NTC switching module calculates the power consumption in the NTC mode by the following calculation formula:
P_NTC = C*V_NTC^2*f_NTC
where p_ntc is the power consumption of the ultrasound device, C is the switched capacitor, v_ntc is the near-threshold operating voltage, and f_ntc is the operating frequency at the near-threshold operating voltage.
5.A storage medium, wherein a computer program is stored on the storage medium, and the computer program is called and executed by a computer, to implement a power management method of an ultrasound apparatus according to claim 1 or 2.
6. An ultrasonic device comprises an ultrasonic transmitting probe and an ultrasonic receiving probe, and is characterized by further comprising a power management module, a data storage and transmission module and a signal processing module, wherein the data storage and transmission module and the signal processing module are connected with the power management module, and the power management module is used for carrying out power management on other components in the ultrasonic device based on the power management method of the ultrasonic device according to claim 1 or 2.
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| CN110652315A (en) * | 2019-10-22 | 2020-01-07 | 无锡祥生医疗科技股份有限公司 | Method and device for reducing power consumption of ultrasonic equipment |
| CN117281545A (en) * | 2023-09-04 | 2023-12-26 | 上海深至信息科技有限公司 | Low-power consumption control method and system for ultrasonic equipment |
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| CN104757998B (en) * | 2015-03-23 | 2018-02-02 | 深圳市理邦精密仪器股份有限公司 | A kind of method and device of reduction power consumption for ultrasonic system |
| CN117503192A (en) * | 2023-10-10 | 2024-02-06 | 上海深至信息科技有限公司 | Intelligent power management low-power consumption sensor method and system based on palm ultrasound |
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| CN110652315A (en) * | 2019-10-22 | 2020-01-07 | 无锡祥生医疗科技股份有限公司 | Method and device for reducing power consumption of ultrasonic equipment |
| CN117281545A (en) * | 2023-09-04 | 2023-12-26 | 上海深至信息科技有限公司 | Low-power consumption control method and system for ultrasonic equipment |
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