31 results about "Heart rate fluctuation" patented technology

An X-ray computed tomography apparatus includes an X-ray source, a high voltage generating unit, an X-ray detector detecting X-rays transmitted through a subject to generate projection data, a storage unit storing the projection data in association with electrocardiographic data of the subject, a setting unit setting a specific cardiac phase in accordance with an operator's instruction, a reconstruction unit reconstructing a tomogram based on projection data sets acquired in specific periods centered on the specific cardiac phase throughout cardiac cycles, a period extending unit extending the specific period on the basis of a heart rate fluctuation range of the subject, and a control unit controlling the high voltage generating unit to generate a relatively high dose of X-rays in the extended specific period and generate a relatively low dose of X-rays in a period other than the extended specific period.

The invention discloses a fatigue driving reminding method and device and a computer readable storage medium. The fatigue driving reminding method comprises the steps of monitoring a heart rate of a user by using a heart rate sensor on wearing equipment under a physical fatigue degree detection function of the wearing equipment; determining a heart rate fluctuation law of the user according to themonitored heart rate; determining the fatigue degree of the user according to the heart rate fluctuation law of the user; obtaining a running time and a running speed of a vehicle driven by the user;if the fatigue degree of the user is larger than a first fatigue degree threshold, the running time is larger than a first running time and the running speed is higher a first speed threshold, generating primary reminding information; transmitting the primary reminding information to a vehicle-mounted system; and displaying the primary reminding information to the user through the vehicle-mountedsystem. According to the fatigue driving reminding method and device and the computer readable storage medium, it can be seen that the accuracy of the fatigue driving reminding method is improved byjudging thresholds of the user fatigue degree, the running time and the running speed and generating and displaying the reminding information according to a judging result.

A physical fitness test method, before the physical fitness test, the heart rate fluctuation rule of the tested person is obtained, during the physical fitness test, the measured heart rate value before the test is obtained, and the fatigue degree k of the tested person is determined according to the pre-test heart rate value , the physical fitness test score of the tested personnel S=f(U, k), where U is the result of the physical fitness test equipment. Since the physical fitness test will have a direct impact on the performance of the physical fitness test when people are in a fatigued state, the test scores of the tested personnel are calculated by combining the fatigue of the tested personnel, thereby reducing the impact of human fatigue on the performance of the physical fitness test , improving the accuracy of physical fitness test results.