BODY HEIGHT MEASURING APPARATUS
A body height measuring apparatus is disclosed comprising a measuring bar, a ground mainframe, an ultrasound signal transmit unit and an ultrasound signal receive unit, a synchronous signal transmit unit and a synchronous signal receive unit. The first operational control unit and a second operational control unit synchronize the operation of the ultrasound signal transmit unit and the ultrasound signal receive unit through manipulation of the synchronous signal transmit unit and the synchronous signal receive unit, and calculate a height based on a transmission time during which an ultrasound signal travels from the ultrasound signal transmit unit to the ultrasound signal receive unit. As the body height is measured based on a unidirectional transmission of the ultrasound signal, the measurement error is reduced, the measuring accuracy is improved and an advantage in use is achieved.
1 - 10 . (canceled)
11 . A body height measuring apparatus having a measuring bar and a ground mainframe, comprising:
an ultrasound signal transmit unit and an ultrasound signal receive unit, one being disposed in the measuring bar and the other being disposed in the ground mainframe;
a synchronous signal transmit unit and a synchronous signal receive unit, one being disposed in the measuring bar and the other being disposed in the ground mainframe; and
a first operational control unit and a second operational control unit, one being disposed in the measuring bar and the other being disposed in the ground mainframe, to synchronize the operation of the ultrasound signal transmit unit and the ultrasound signal receive unit through manipulation of the synchronous signal transmit unit and the synchronous signal receive unit, and to calculate a height based on a transmission time during which an ultrasound signal travels from the ultrasound signal transmit unit to the ultrasound signal receive unit.
12 . The body height measuring apparatus according to claim 1 ,
wherein the measuring bar further comprises a horizontal tilt detection unit for detecting a tilt angle of the measuring bar;
wherein the first operational control unit or the second operational control unit corrects a measured height based on the tilt angle of the measuring bar detected by the horizontal tilt detection unit.
13 . The body height measuring apparatus according to claim 2 , wherein
the synchronous signal receive unit comprises a plurality of synchronous signal receive points; and
the first operational control unit or the second operational control unit corrects a measured height based on an offset distance between an actual receive point and a predetermined receive point.
14 . The body height measuring apparatus according to claim 3 , wherein the plurality of synchronous signal receive points are arranged at equal intervals, the predetermined receive point is located in the center of the plurality of synchronous signal receive points, and the predetermined receive point corresponds to the synchronous signal receive point when the ultrasound signal transmit unit and the ultrasound signal receive unit are in the same vertical line.
15 . The body height measuring apparatus according to claim 1 , wherein
the synchronous signal receive unit comprises a plurality of synchronous signal receive points; and
the first operational control unit or the second operational control unit corrects a measured height based on an offset distance between an actual receive point and a predetermined receive point.
16 . The body height measuring apparatus according to claim 5 , wherein the plurality of synchronous signal receive points are arranged at equal intervals, the predetermined receive point is located in the center of the plurality of synchronous signal receive points, and the predetermined receive point corresponds to the synchronous signal receive point when the ultrasound signal transmit unit and the ultrasound signal receive unit are in the same vertical line.
17 . The body height measuring apparatus according to claim 1 , wherein the ground mainframe further comprises a body weight measuring unit.
18 . The body height measuring apparatus according to claim 1 , wherein the measuring bar or the ground mainframe further comprises:
a parameter input unit for inputting parameters of the person to be measured, the parameters comprising age and gender; and
a body fat calculation unit for calculating body fat content based on a measurement of a body impedance between the two feet of the person to be measured and the input parameters.
19 . The body height measuring apparatus according to claim 1 , further comprising:
a display unit, connected to the first operational control unit or the second operational control unit, for displaying the measured result.
20 . The body height measuring apparatus according to claim 1 , wherein the measuring bar is provided with a contact switch for initiating the operation of the measuring bar.
21 . The body height measuring apparatus according to claim 1 , wherein the measuring bar is provided with a horizon detection unit for initiating the operation of the measuring bar once it determines that the measuring bar is horizontal.
22 . The body height measuring apparatus according to claim 1 , wherein the synchronous signal includes an infrared signal, a radio signal or an optical signal.